CN219389369U

CN219389369U - Arch lattice unit and lattice structure thereof

Info

Publication number: CN219389369U
Application number: CN202223424384.9U
Authority: CN
Inventors: 薛晨昊; 陈盛贵; 乌日开西·艾依提; 李楠; 秦明军
Original assignee: Xinjiang University
Current assignee: Xinjiang University
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-07-21
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses an arch lattice unit which comprises an upper supporting part and a lower supporting part, wherein the upper supporting part is fixed above the lower supporting part, the upper supporting part comprises a plurality of first arches, the inner walls of the first arches are in a semicircular structure, the middle parts of the first arches are fixedly connected, the same included angles are arranged between the first arches, the lower supporting part comprises a plurality of second arches, the inner walls of the second arches are in a semicircular structure, the middle parts of the second arches are fixedly connected, the same included angles are arranged between the second arches, and the first arches and the second arches are arranged in a direction away from each other. The utility model provides an arch lattice unit and a lattice structure thereof, which have the advantages of good bearing property, light weight and energy absorption property. The utility model also provides an arch lattice structure.

Description

Arch lattice unit and lattice structure thereof

Technical Field

The utility model relates to the technical field of lattice structures, in particular to an arch-shaped lattice unit and a lattice structure thereof.

Background

In the field of structural engineering, the integration of high-performance, multifunctional components results in an undesirable increase in the available space, assembly difficulty, allowable cost and weight of the related equipment, requiring a more complex, more optimized structure to meet the requirements of weight reduction, integration, and upsizing of the components. The lattice structure has high porosity, and the lattice structure formed by periodically arranging units often has excellent performance and functions which are not possessed by a large solid structure, such as high rigidity/weight ratio, high specific strength, high heat dissipation, excellent energy absorption performance and the like, has enough space to realize multifunctional integration and structural function integration, and is applied to the fields of aerospace, automobile manufacturing, biomedical treatment and the like.

Since the lattice structure is composed of a plurality of lattice units which are arranged periodically and has the above specific features, how to design the lattice units so that the lattice units have good bearing characteristics, light weight and energy absorption characteristics is a main problem.

Disclosure of Invention

The utility model aims to provide an arch lattice unit which has the advantages of good bearing property, light weight and energy absorption property.

The utility model discloses an arch lattice unit and a lattice structure thereof, which adopts the technical proposal that:

the utility model provides an arch dot matrix unit, includes upper supporting part and lower supporting part, upper supporting part is fixed in the lower supporting part top, upper supporting part includes a plurality of first arch, first arch inner wall is semi-circular structure, and a plurality of first arch middle part fixed connection, a plurality of install the same contained angle setting between the first arch, lower supporting part includes a plurality of second arch, second arch inner wall is semi-circular structure, and a plurality of second arch middle part fixed connection, a plurality of install the same contained angle setting between the second arch, first arch and second arch are kept away from the direction setting towards each other.

As a preferred scheme, the number of the first arch parts and the second arch parts is two, a plurality of first arch parts are arranged at an included angle of 90 degrees, and a plurality of second arch parts are arranged at an included angle of 90 degrees.

Preferably, the first arch part and the second arch part are arranged up and down correspondingly, and the upper supporting part and the lower supporting part form an up-down symmetrical structure.

Preferably, the cross section of the first arch part and the cross section of the second arch part are of an H-shaped structure, and the length and the width of the cross section are equal.

As a preferable scheme, the upper supporting part and the lower supporting part are integrally formed by adopting a laser sintering technology, and the upper supporting part and the lower supporting part are made of TPU materials.

The arched lattice structure comprises the arched lattice units, wherein the arched lattice units are arranged in a rectangular array, and the arched lattice units can be stacked in the vertical direction.

The arch lattice unit disclosed by the utility model has the beneficial effects that: through upper supporting part and the lower supporting part that upper and lower relative set up, make lattice unit can bear the effort at upper and lower both ends relatively, and upper supporting part and lower supporting part respectively include a plurality of first arch and second arch, the inner wall of first arch and second arch is semi-circular structure, thereby make first arch and second arch can have sufficient power to recover after the atress warp, semi-circular structure can carry out the energy-absorbing better, make the lattice be greater than having good bearing and energy-absorbing characteristic, also make lattice structure have more spaces simultaneously, play the purpose of subtracting heavy, make lattice structure have the characteristics of light nature.

Drawings

FIG. 1 is a schematic diagram of an arch-shaped lattice unit according to the present utility model.

FIG. 2 is a schematic diagram of an arch lattice structure according to the present utility model.

Detailed Description

The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:

please refer to fig. 1, an arch lattice unit 10, which comprises an upper supporting portion 11 and a lower supporting portion 12, wherein the upper supporting portion 11 is fixed above the lower supporting portion 12, the upper supporting portion 11 comprises a plurality of first arches 111, the inner walls of the first arches 111 are in a semicircular structure, the middle parts of the first arches 111 are fixedly connected, the same included angle is arranged between the first arches 111, the lower supporting portion 12 comprises a plurality of second arches 121, the inner walls of the second arches 121 are in a semicircular structure, the middle parts of the second arches 121 are fixedly connected, the same included angle is arranged between the second arches 121, and the first arches 111 and the second arches 121 are arranged far away from each other.

Through upper supporting part 11 and lower supporting part 12 that upper and lower relative set up, make dot matrix unit 10 can bear the effort at upper and lower both ends well, and upper supporting part 11 and lower supporting part 12 include a plurality of first arch 111 and second arch 121 respectively, the inner wall of first arch 111 and second arch 121 is semi-circular structure, thereby make first arch 111 and second arch 121 can have sufficient power to recover after the atress warp, semi-circular structure can carry out the energy-absorbing well, make the dot matrix be greater than having good bearing and energy-absorbing characteristic, also make dot matrix structure have more spaces simultaneously, play the purpose of subtracting heavy, make dot matrix structure have the characteristics of light.

In the above scheme, the number of the first arch parts 111 and the second arch parts 121 is two, a plurality of first arch parts 111 are arranged at an included angle of 90 degrees, a plurality of second arch parts 121 are arranged at an included angle of 90 degrees, the first arch parts 111 and the second arch parts 121 are correspondingly arranged up and down, and the upper supporting part 11 and the lower supporting part 12 form an up-down symmetrical structure. Thereby forming a 4-foot supporting structure and enabling the stress of the lattice structure to be more uniform.

The cross section shapes of the first arch part 111 and the second arch part 121 are all H-shaped structures, the lengths and the widths of the cross section shapes are equal, the upper supporting part 11 and the lower supporting part 12 are integrally formed by adopting a laser sintering technology, and the upper supporting part 11 and the lower supporting part 12 are made of TPU materials. TPU materials have both the high elasticity of rubber and the high strength of plastics, which offer the TPU materials a wide range of applications in a wide variety of industries.

The dot matrix unit 10 is firstly drawn through three-dimensional drawing software, and then drawn data are led into corresponding selective laser sintering equipment to carry out printing operation, and after the dot matrix unit is completely molded, the dot matrix unit is waited for more than 6 hours of natural cooling, powder cleaning and sand blasting.

The bearing performance, the deformation performance and the energy absorption performance of the unit can be effectively regulated and controlled by adjusting the parameters of the arch algebraic curve equation, so that different application requirements can be met. In addition, the H-shaped cross-section has relatively small dead weight and model data volume, and can be used for lightweight design of parts.

Referring to fig. 2, an arch-shaped lattice structure includes the above-mentioned arch-shaped lattice units 10, the arch-shaped lattice units 10 are arranged in a rectangular array, and the arch-shaped lattice units 10 can be stacked in a vertical direction, so that lattice structure products with different sizes can be manufactured for use.

The lattice structure has high porosity, high damping, high heat dissipation and other features in reasonable arrangement, and has enough space to realize multifunctional integration and structural function integration. Based on the parameter adjustment and post-treatment of the forming lattice structure of the selective laser sintering technology, the printing quality and the printing speed can be considered, and the higher forming quality can be obtained.

The utility model provides an arch-shaped lattice unit, which is characterized in that an upper supporting part and a lower supporting part are arranged up and down oppositely, so that the lattice unit can bear acting forces at the upper end and the lower end well, the upper supporting part and the lower supporting part respectively comprise a plurality of first arch parts and second arch parts, the inner walls of the first arch parts and the second arch parts are semicircular structures, and therefore, after being stressed and deformed, the first arch parts and the second arch parts can be restored with enough forces, the semicircular structures can absorb energy well, the lattice is larger than the lattice with good bearing and energy absorbing characteristics, and meanwhile, the lattice structure also has more gaps, the weight is reduced, and the lattice structure has the characteristic of light weight.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides an arch dot matrix unit, its characterized in that includes upper supporting part and lower supporting part, upper supporting part is fixed in lower supporting part top, upper supporting part includes a plurality of first arch, first arch inner wall is semi-circular structure, and a plurality of first arch middle part fixed connection, a plurality of install the same contained angle setting between the first arch, lower supporting part includes a plurality of second arch, second arch inner wall is semi-circular structure, and a plurality of second arch middle part fixed connection, a plurality of install the same contained angle setting between the second arch, first arch and second arch are kept away from the direction setting each other.

2. The arch-shaped lattice unit of claim 1, wherein the number of the first arch-shaped parts and the second arch-shaped parts is two, the first arch-shaped parts are arranged at an included angle of 90 degrees, and the second arch-shaped parts are arranged at an included angle of 90 degrees.

3. An arch lattice unit according to claim 2, wherein the first and second arches are disposed vertically in correspondence, and the upper and lower support portions form an up-down symmetrical structure.

4. An arch lattice unit according to claim 3, wherein the first arch and the second arch each have an H-shaped cross-section and the length and width of the cross-section are equal.

5. An arch lattice unit according to any one of claims 1-4, wherein the upper and lower support portions are integrally formed using a laser sintering technique, and the upper and lower support portions are each formed of TPU material.

6. An arch-shaped lattice structure, characterized by comprising the arch-shaped lattice units according to any one of claims 1-5, wherein the arch-shaped lattice units are arranged in a rectangular array, and the arch-shaped lattice units can be stacked in a vertical direction.