WO2017161574A1

WO2017161574A1 - Combined spring bidirectional multi-stage buffering system

Info

Publication number: WO2017161574A1
Application number: PCT/CN2016/077398
Authority: WO
Inventors: 汪冰洋; 汪江林
Original assignee: 汪冰洋
Priority date: 2016-03-25
Filing date: 2016-03-25
Publication date: 2017-09-28
Also published as: CN107438540B; CN107438540A

Abstract

A combined spring bidirectional multi-stage buffering system comprises at least one buffering component (1); each buffering component (1) comprises a buffering shaft (11), a shaft sleeve (12) putting outside the buffering shaft (11), and multiple stages of springs (13) arranged between the buffering shaft (11) and the shaft sleeve (12) ; a plurality of separator plates (121) used for isolating each stage of spring in the multiple stages of springs (13) are arranged on the inner wall of the shaft sleeve (12); a plurality of baffle plates (111) used for gradually pushing each stage of spring to do power under the action of an external force are arranged on the outer wall of the buffering shaft (11); the baffle plates (111) and the separator plates (121) are in one-to-one correspondence and in clearance fit in a natural state so that the baffle plates (111) can penetrate through clearances among the separator plates (121). The buffering shaft (11) of the buffering system can move bidirectionally in the shaft sleeve (12) so that multiple stages of springs combined in the buffering system can perform bidirectional buffer.

Description

Title of Invention: A Combined Spring Bidirectional Multistage Buffer System

[0001] The present invention belongs to the field of buffer technology, and in particular, to a combined spring bidirectional multi-stage buffer system for collision avoidance, shock absorption, fall arrest, and assist.

Background technique

[0002] In the prior art, springs are often used for the buffer structure, but most of them use a primary spring, and the buffering effect is not good. Some multi-stage springs can only achieve one-way buffering, which can not meet the requirements of strength and two-way buffering in areas such as automobile anti-collision, automobile shock absorption, elevator fall arrest, mold processing, and cylinder assist.

technical problem

[0003] It is an object of the present invention to overcome the deficiencies of the prior art described above and to provide a combined spring bi-directional multi-stage buffer system that achieves bidirectional buffering of multi-stage springs in a combined spring bi-directional multi-stage buffer system.

Problem solution

Technical solution

[0004] The technical solution of the present invention is: a combined spring bidirectional multi-stage buffer system, including at least one buffer assembly, each of the buffer assemblies includes a buffer shaft, a sleeve sleeved outside the buffer shaft, And a multi-stage spring disposed between the buffer shaft and the sleeve; the inner wall of the sleeve is provided with a plurality of partitions for isolating each stage of the multi-stage spring, the buffer shaft The outer wall is provided with a plurality of baffles for gradually pushing the work of each of the springs under the action of an external force, and the baffle and the baffle are in a corresponding state and a clearance fit in the natural state to make the baffle A gap that can pass through the partition.

[0005] Further, the buffer system is composed of two or more of the buffer components.

Further, the partition is fixed on an inner wall of the sleeve and includes at least two portions, and an edge of each portion is tangent to the buffer shaft.

[0007] Further, each of the buffer assemblies further includes an additional buffer shaft sleeved in the buffer shaft, and an additional multi-stage spring disposed between the buffer shaft and the additional buffer shaft; An additional baffle is disposed on the outer wall, and an additional partition is disposed on an inner wall of the buffer shaft.

[0008] Further, a plurality of the partitions are disposed at equal intervals in the sleeve, and the buffer shaft is provided with a plurality of And a baffle corresponding to the partition, respectively, such that a space between the sleeve and the buffer shaft is divided into a plurality of buffer chambers, and the multi-stage spring is disposed in the buffer chamber.

[0009] Further, the first stage spring of the multi-stage spring at the end of the sleeve is filled with the buffer cavity, and each stage of the spring located after the first stage spring is sequentially reduced by an equal distance length.

[0010] Further, the first stage spring of the multi-stage spring at the end of the sleeve does not fill the buffer cavity, and each stage of the spring after the first stage spring is sequentially decreased by an equal distance length.

[0011] Further, the buffer system includes four buffer components arranged side by side, and the two inner buffer assemblies have different spring order numbers from the outer two buffer assemblies.

[0012] Further, a damping screw screw is disposed between the two buffer components on the left side and the two buffer components on the right side.

[0013] Further, the multi-stage spring is a five-stage spring, and includes a first spring, a second spring, a third spring, a fourth spring, and a fifth spring which are sequentially disposed in the five buffer chambers, a first spring fills the buffer cavity, and the second spring, the third spring, the fourth spring, and the fifth spring sequentially decrease an equidistant length

[0014] Further, the second spring, the third spring, the fourth spring and the fifth spring are successively decremented by 35 mm.

[0015] Further, the multi-stage spring is a seven-stage spring, and includes a first spring, a second spring, a third spring, a fourth spring, a fifth spring, and a sixth, which are sequentially disposed in the seven buffer chambers. a spring and a seventh spring, the first spring not filling the buffer cavity, and the second spring, the third spring, the fourth spring, the fifth spring, the sixth spring, and the seventh spring are sequentially decreased by an equal distance length.

[0016] Further, the second spring, the third spring, the fourth spring, the fifth spring, the sixth spring and the seventh spring are successively decremented by 20 mm.

Advantageous effects of the invention

Beneficial effect

[0017] A combined spring bidirectional multistage cushioning system embodying the present invention has the following beneficial effects: it is provided by a plurality of partitions for isolating each stage of the spring of the multistage spring on the inner wall of the sleeve, and The baffle shaft is provided with a plurality of baffles corresponding to the baffles and used to push the multi-stage springs to work. The baffles cooperate with the baffles to enable the baffles to pass through the gaps of the baffles, further enabling the buffer shaft to be Two-way motion within the bushing to achieve bidirectional buffering of the combined multi-stage springs in the buffer system. Brief description of the drawing

DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic cross-sectional structural view of a buffer assembly according to an embodiment of the present invention;

2 is a schematic longitudinal cross-sectional view of a buffer assembly according to an embodiment of the present invention;

3 is a schematic longitudinal cross-sectional view of a buffer assembly according to another embodiment of the present invention;

4 is a schematic longitudinal cross-sectional view of a buffer assembly according to another embodiment of the present invention;

5 is a schematic structural view of a damping screw provided by an embodiment of the present invention;

6 is a schematic structural diagram of a motor vehicle according to an embodiment of the present invention.

Embodiments of the invention

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It is to be noted that when an element is referred to as being "fixed" or "in" another element, it can be directly on the other element or indirectly. When an element is referred to as being "connected" to another element, it can be connected directly to the other element or indirectly connected to the other element.

[0027] It should also be noted that the left, right, upper, lower, and the like orientations in the embodiments of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered as having Restrictive.

As shown in FIG. 1 to FIG. 3, the combined spring bidirectional multi-stage buffering system provided by the embodiment of the invention can be used in motor vehicle anti-collision, elevator anti-drop, mold spring and motor vehicle verification. Specifically, the combined spring bidirectional multistage buffer system of the embodiment of the present invention includes at least one buffer assembly 1, each buffer assembly 1 including a buffer shaft 11, a sleeve 12 sleeved outside the buffer shaft 11, and a buffer shaft 11 disposed thereon. A multi-stage spring 13 between the sleeve 12 and the multi-stage spring 13 is sleeved on the buffer shaft 11. In the embodiment of the present invention, the buffer shaft 11 and the sleeve 12 have the same cross-sectional shape, for example, both of which are circular or square. Designed on the inner wall of the sleeve 12 There are a plurality of partitions 121 for isolating each of the stages of the multi-stage springs 13, i.e., a first stage spring is disposed between the adjacent two partitions 121. A plurality of baffles 111 are disposed on the outer wall of the buffer shaft 11, and the baffles are used to gradually push the work of each stage of the multi-stage spring 13 under the action of an external force. The baffle 121 and the baffle 111 are in a natural state. One-to-one correspondence and clearance fit to enable the baffle 111 to pass through the gap of the diaphragm 121 further allows the buffer shaft 11 to move bi-directionally within the sleeve 12 to effect bidirectional cushioning of the combined multi-stage spring 13 in the cushioning system.

Further, the partition plate 121 is fixed to the inner wall of the sleeve 12 and includes at least two portions, and the edge of each portion is tangential to the buffer shaft 11. Specifically, in one embodiment of the present invention, the partition plate 121 is welded to the inner wall of the sleeve 12, and the baffle 111 is welded to the outer wall of the buffer shaft 11. In the present embodiment, the partition plate 121 includes three portions, and the edge of each portion is tangent to the buffer shaft 11, and the baffle 111 is also divided into three portions, respectively, and the partition plate 121 is clearance-fitted to realize the partition plate 121 and the baffle plate. The clearance fit of 111 allows the baffle 111 to pass through the gap of the spacer 121. It can be understood that, in other embodiments of the present invention, the partition plate 121 and the sleeve 12 may be integrally formed, and the baffle 111 and the buffer shaft 11 may be integrally formed, and the partition 121 may also include two or more parts. Only the partition plate 121 can be provided with a clearance fit with the baffle 111.

[0030] Further, as shown in FIG. 4, in an embodiment of the present invention, each buffer assembly 1 further includes an additional buffer shaft 14 sleeved in the buffer shaft 11, and a buffer shaft 11 and an additional buffer. An additional multi-stage spring 15 between the shafts 14. Specifically, an additional baffle (not shown) is provided on the outer wall of the additional buffer shaft 14, and an additional partition (not shown) is provided on the inner wall of the buffer shaft 11, and an additional block on the buffer shaft 14 is attached. The plate cooperates with the additional baffle on the buffer shaft 11 to allow the additional buffer shaft 14 to move bi-directionally within the buffer shaft 11, thereby achieving double buffering of the multi-stage spring 13. It will be understood that in other embodiments of the present invention, two or more additional buffer shafts 14 may be sequentially disposed within the buffer shaft 11 to effect multi-layer buffering of the multi-stage springs 13. Thus, the buffer system may include a buffer component 1 and act as a separate buffer, or may include two or more buffer components 1, combined to form a buffer system. In addition, the buffer system can be applied to the fields of automobile anti-collision buffer, elevator fall prevention and the like.

[0031] Further, a plurality of partition plates 121 are disposed at equal intervals in the sleeve 12, and a plurality of baffles 111 respectively corresponding to the partition plates 121 are disposed on the buffer shaft 11, so that the sleeves 12 and the buffers are buffered. The space between the shafts 11 is divided into a plurality of buffer chambers 131, and the multi-stage springs are disposed in the buffer chambers 131. The first stage spring of the multistage spring 13 at the end of the sleeve 12 is filled with the buffer cavity 131, and each stage of the spring after the first stage spring is successively decremented The equidistant length, or the first stage spring of the multi-stage spring 13 at the end of the sleeve 12 is not filled with the buffer chamber 131, and each stage of the spring after the first stage spring is successively decremented by an equal distance length.

[0032] In addition, as shown in FIG. 2 and FIG. 3, a shaft length slide 112 of a certain length is disposed at both ends of the buffer shaft 11, and the shaft guide rail 112 can make the buffer shaft 11 of the buffer assembly 1 work. The 吋 does not move back and forth within the sleeve 12 due to rotation. Specifically, the shaft guide 112 may be a partition 121 disposed on the inner wall of the sleeve 12, and the partition 121 is located at both ends of the buffer shaft 11 and has a certain thickness, and the thickness thereof is much larger than the sleeve 12 is located. A partition 121 inside the buffer shaft 11. This buffer system can include a cushioning assembly 1 and is used in mechanical applications such as automotive shock absorption and tooling. It can be understood that the length of the shafting slide 112 can be determined according to actual conditions.

Specifically, referring to FIG. 1 and in conjunction with FIG. 2, in one embodiment of the present invention, six of the above-mentioned partition plates 121 are disposed at equal intervals in the sleeve 12, and six of the buffer shafts 11 are provided. The baffle 111 has a position corresponding to the six partition plates 121, so that the space between the sleeve 12 and the buffer shaft 11 is divided into five buffer chambers 13, and the multi-stage springs 13 are disposed in the buffer chamber 131. The multi-stage spring 13 is a five-stage spring, and includes a first spring 131a, a second spring 131b, a third spring 131c, a fourth spring 131d, and a fifth spring 131e which are disposed in the five buffer chambers 131 in this order. The first spring 131a is filled with the buffer chamber 131, and the second spring 131b, the third spring 131c, the fourth spring 131d, and the fifth spring 131e are sequentially decreased by an equal distance length. In the embodiment of the present invention, the lengths of the second spring 131b, the third spring 131c, the fourth spring 131d, and the fifth spring 131e, which are sequentially decreased, can be determined according to actual needs. Preferably, the decreasing length is 35 mm. It can be understood that in practical applications, the size can be formulated according to different strength parameters. Therefore, the buffer system may include a buffer component 1 as a separate buffer and applied to the fields of automobile shock absorption, mold processing, etc., and may also include two or more buffer components 1 to be combined and formed. Buffer system,

[0034] Referring to FIG. 1 and in conjunction with FIG. 3, in another embodiment of the present invention, eight of the above-mentioned partition plates 121 are disposed at equal intervals in the sleeve 12, and eight of the above-mentioned blocks are provided on the buffer shaft 11. The plates 111 are respectively positioned corresponding to the eight partition plates 121 such that the space between the sleeve 12 and the buffer shaft 11 is divided into seven buffer chambers 131, and the multi-stage springs 13 are disposed in the buffer chamber 131. The multi-stage spring 13 is a seven-stage spring, and includes a first spring 131a, a second spring 131b, a third spring 131c, a fourth spring 1 31d, a fifth spring 131e, and a sixth, which are sequentially disposed in the seven buffer chambers 131. The spring 131f and the seventh spring 131g. Wherein, the first spring 131a is not charged The full buffer chamber 131, the second spring 131b, the third spring 131c, the fourth spring 131d, the fifth spring 131e, the sixth spring 131f, and the seventh spring 131g are sequentially decreased by an equal distance length. In the embodiment of the present invention, the lengths of the second spring 131b, the third spring 131c, the fourth spring 131d, the fifth spring 131e, the sixth spring 131f, and the seventh spring 131g are sequentially decreased according to actual needs. Preferably, the decreasing length is 20 mm. It can be understood that in practical applications, the size can be formulated according to different strength parameters. Thus, the buffer system may include a buffer component 1 and act as a separate buffer, or may include two or more buffer components 1 combined to form a buffer system.

[0035] It can be understood that, in other embodiments of the present invention, the number of the baffle 111 and the partition plate 121 can be determined according to actual needs, and only the baffle 111 and the partition plate 121 need to be matched with each other.

As shown in FIGS. 5 and 6, the buffer system can be applied to a motor vehicle including a vehicle body 2 and a buffer system disposed at the bottom of the vehicle body 2 and as described above. The following is a detailed description of the application of the buffer system using a motor vehicle as an example.

Further, the above buffer system includes four buffer assemblies 1 arranged side by side, and the inner two buffer assemblies 1 and the outer two buffer assemblies 1 have different spring order numbers.

Preferably, the idle stroke of the spring of the cushioning assembly 1 located on the inner side is the same as the total stroke of the spring of the cushioning assembly 1 located outside.

[0039] Specifically, in one embodiment of the present invention, the buffer system includes four buffer assemblies 1 disposed side by side, and the inner two buffer assemblies 1 are provided with seven stages of springs, and the outer two buffer units 1 are disposed. There are five levels of springs. The first spring 131a of the five-stage spring is filled with the buffer chamber 131, and the second spring 131b, the third spring 131c, the fourth spring 131d, and the fifth spring 131e are successively decreased by 35 mm. The first spring 131a of the above-described seven-stage spring does not fill the buffer chamber 131, and the first-stage spring of the seven-stage spring has an idle stroke of 175 mm, that is, the total stroke of the five-stage spring. The second spring 131b, the third spring 131c, the fourth spring 131d, the fifth spring 131e, the sixth spring 131f, and the seventh spring 131g are successively decreased by 20 mm. Therefore, when the motor vehicle is subjected to a collision, the outer five-stage spring performs work first, and after the total stroke of the work is 175 mm, the inner seven-stage spring performs work, thereby realizing the grading buffer of the plurality of buffer assemblies 1. It can be understood that, in other embodiments of the present invention, the lengths of the second spring 131b, the third spring 131c, the fourth spring 131d, and the fifth spring 131e of the five-stage spring are sequentially decreased according to actual needs, and the seven-stage spring is determined. The second spring 131b, the third spring 131c, the fourth spring 131d, the fifth spring 131e, the sixth spring 131f, and the seventh spring 131g are sequentially delivered The length of the reduction can be determined according to actual needs.

[0040] Further, both ends of the buffer assembly 1 are respectively connected to the anti-collision beam 6, and a damping screw is arranged between the two buffer components 1 on the left side, between the two buffer components 1 on the right side. A damping screw is also provided, so that four damping screw rods are arranged at the bottom of the vehicle body 2. One end of the four damping screw rods is connected with the collision beam 6 and the other end extends in the direction of the axle. The damping screw is used to adjust the damping stroke of the buffer shaft 11. Specifically, the damping screw may include a screw rod 3, at least one nut 4 disposed on the screw rod 3, and at least one damping lock position 5 disposed on the screw rod 3, each damping lock position 5 and each nut 4 Fit, and one end of the nut 4 is inclined to facilitate the passage of the damping lock 5. The screw 3 can be designed for automatic slow reset or manual reset. The damping lock position 5 is provided with a lock block, a lock block column, a lock block shaft and a lock block return spring. It can be understood that the damping lock position 5 here can adopt the damping lock position commonly used in the prior art, and will not be described in detail herein. Preferably, a nut 4 is attached to each of the buffer stroke 350 mm and the buffer stroke 200 mm, respectively. It can be understood that different models can be designed with the required distance of the nut 4 and the mounting nut 4 times.

In summary, a combined spring bidirectional multistage buffering system embodying the present invention is provided with a plurality of partitions 121 for isolating each stage of springs of the multistage springs 13 on the inner wall of the sleeve 12. And a plurality of baffles 111 corresponding to the partition plate 121 and for pushing the multi-stage spring 13 to work on the outer wall of the buffer shaft 11, the baffle plate 21 and the baffle 111 are clearance-fitted to enable the baffle 111 to pass through The gap of the partition 121 further allows the buffer shaft 11 to move bidirectionally within the sleeve 12, thereby achieving bidirectional buffering of the multi-stage spring 13 in the cushioning system.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

Claim

[Claim 1] A combined spring bidirectional multistage buffering system, comprising: at least one buffer assembly, each of said buffer assemblies including a buffer shaft, a sleeve sleeved outside said buffer shaft, and a multi-stage spring between the buffer shaft and the sleeve; the inner wall of the sleeve is provided with a plurality of partitions for isolating each stage of the multi-stage spring, and the outer wall of the buffer shaft is provided There are a plurality of baffles for gradually pushing the work of each of the springs under the action of an external force, and the baffle and the baffle are in a natural corresponding state and a clearance fit to enable the baffle to pass through The gap of the separator.

[Claim 2] The combined spring bidirectional multistage buffer system according to claim 1, wherein the buffer system is composed of two or more of the buffer assemblies.

[Claim 3] The combined spring bidirectional multistage cushioning system according to claim 1, wherein the partition plate is fixed to an inner wall of the sleeve and includes at least two portions, an edge of each portion The buffer axis is tangent.

[Claim 4] The combined spring bidirectional multistage buffering system of claim 1 wherein each of said buffer assemblies further includes an additional buffer shaft nested within the buffer shaft and disposed in said buffer shaft An additional multi-stage spring is disposed between the additional buffer shaft; an additional baffle is disposed on the outer wall of the additional buffer shaft, and an additional partition is disposed on the inner wall of the buffer shaft.

[Claim 5] The combined spring bidirectional multi-stage buffer system according to claim 1, wherein a plurality of the partitions are disposed at equal intervals in the sleeve, and the buffer shaft is provided with a plurality of And a baffle corresponding to the partition, respectively, such that a space between the sleeve and the buffer shaft is divided into a plurality of buffer chambers, and the multi-stage spring is disposed in the buffer chamber.

[Claim 6] The combined spring bidirectional multistage buffering system according to claim 5, wherein the first stage spring of the multistage spring at the end of the sleeve is filled with the buffer cavity, and is located at Each stage of the spring after the first stage spring is successively decremented by an equal distance length.

[Claim 7] The combined spring bidirectional multistage buffering system according to claim 5, wherein the first stage spring of the multistage spring at the end of the sleeve is not filled with the buffer cavity, and is located Each stage of spring after the first stage spring is successively decremented by an equal distance length.

[Claim 8] The combined spring bidirectional multistage buffer system according to claim 6 or 7, wherein The buffer system includes four of the buffer assemblies arranged side by side, and the two inner buffer assemblies have different spring order numbers from the outer two buffer assemblies.

[Claim 9] The combined spring bidirectional multistage buffering system according to claim 8, wherein a damping screw is disposed between the two buffer members on the left side and the two buffer members on the right side. .

[Claim 10] The combined spring bidirectional multistage buffer system according to claim 6, wherein the multi-stage spring is a five-stage spring, and includes a first spring that is sequentially disposed in five of the buffer chambers, a second spring, a third spring, a fourth spring and a fifth spring, the first spring filling the buffer chamber, and the second spring, the third spring, the fourth spring and the fifth spring are sequentially decreased by an equal distance length.

[Claim 11] The combined spring bidirectional multistage cushioning system according to claim 10, wherein the second spring, the third spring, the fourth spring, and the fifth spring are successively decremented by 35 mm.

[Claim 12] The combined spring bidirectional multi-stage buffer system according to claim 7, wherein the multi-stage spring is a seven-stage spring, and includes a first spring that is sequentially disposed in seven of the buffer chambers, a second spring, a third spring, a fourth spring, a fifth spring, a sixth spring, and a seventh spring, the first spring not filling the buffer cavity, the second spring, the third spring, the fourth spring, The fifth spring, the sixth spring, and the seventh spring are successively decremented by an equal distance length.

[Claim 13] The combined spring bidirectional multistage buffer system according to claim 12, wherein the second spring, the third spring, the fourth spring, the fifth spring, the sixth spring, and the seventh spring are in turn Decrease by 20mm.