CN109733997B - Self-powered system of rotary-pendulum amplitude-variable trolley of tower crane and control method thereof - Google Patents
Self-powered system of rotary-pendulum amplitude-variable trolley of tower crane and control method thereof Download PDFInfo
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- CN109733997B CN109733997B CN201811561830.6A CN201811561830A CN109733997B CN 109733997 B CN109733997 B CN 109733997B CN 201811561830 A CN201811561830 A CN 201811561830A CN 109733997 B CN109733997 B CN 109733997B
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Abstract
A self-powered system of a rotary-swing amplitude-variable trolley of a tower crane belongs to the technical field of tower cranes. The power generation device is respectively connected with a rope guide wheel and an electric power storage device of the variable-amplitude trolley, the electric power storage device is connected with a rotary pendulum executing device of the trolley through the control device, the rotary pendulum executing device on the trolley is driven to work for supplying power to the electric power storage device, the control device is respectively connected with the rotary pendulum executing device of the variable-amplitude trolley, the load lifting amount detecting device, the generator and the rotary pendulum executing device of the trolley are connected, the generator is controlled to work through signals transmitted by the load lifting amount detecting device, and the rotary pendulum executing device is controlled to work through manual remote control. The invention avoids the direct winding influence of the electric wire and the steel wire rope, does not need to be additionally provided with a generator to supply power to the swing mechanism of the amplitude-variable trolley, utilizes the self mechanical energy to generate electric energy to supply the swing mechanism to work, and reduces the energy consumption.
Description
Technical Field
The invention belongs to the technical field of tower cranes, and particularly relates to a self-powered system of a rotary-pendulum amplitude-variable trolley of a tower crane.
Background
With the development of modern construction, the assembly type building has become a main development direction, and the amplitude variation trolley with the rotary pendulum function can meet the working requirement during hoisting of the hoisting weight and reduce the manual requirement during hoisting and heavy assembly. The existing luffing trolley with the rotary swing function needs to be connected with a rotary mechanism of the luffing trolley from a generator on the ground through an electric wire, the overlong electric wire can be wound with a steel wire rope on a tower crane to bring inconvenience, and the generator needs to be additionally arranged along with the tower crane to cause energy loss.
Disclosure of Invention
Aiming at the technical problems, the invention provides a self-power supply system of a rotary-pendulum amplitude-variable trolley of a tower crane. The invention can supply power to the variable-amplitude rotary motor at any time, so that the variable-amplitude trolley can rotate at +/-90 degrees to work.
The purpose of the invention is realized by the following technical scheme: the power generation device is respectively connected with a rope guide wheel and an electric power storage device of the variable-amplitude trolley, the electric power storage device is connected with a rotary pendulum executing device of the trolley through the control device to supply power for the rotary pendulum executing device on the trolley, the control device is respectively connected with the rotary pendulum executing device of the variable-amplitude trolley, the generator and the rotary pendulum executing device of the trolley are driven to work, the signal transmitted by the load lifting amount detecting device is received to control the generator to generate power, and the manual remote control rotary pendulum executing device works.
Further: the power generation device comprises two large gears and two generators, the two large gears are respectively fixed on the outer sides of the two guide pulleys of the trolley, and the two large gears are respectively meshed with the driving gears of the two generators; when the hoisting weight of the trolley rises or falls, the guide pulley of the trolley rotates to drive the large gear connected with the trolley to rotate and drive the generator driving gear meshed with the large gear to rotate, so that the generator generates electricity, mechanical energy is converted into electric energy, and the electric storage device is charged.
Further: the control device is fixed on the trolley platform and comprises a controller and a control execution module, the controller is provided with a wireless communication module which is communicated with a tower crane main control system, and the control execution module comprises a power generation control switch and a driving control switch; the controller is communicated with a tower crane main control system through a wireless communication module and used for receiving signals transmitted by the lifting load detection device, the controller is connected with a power generation control switch of the control execution module, the power generation control switch is respectively connected with a power generator and a rectifier of the power storage device, a drive control switch of the control execution module is respectively connected with a storage battery of the power storage device and a trolley rotary motor, and the connection and disconnection of circuits of the power generator and the storage battery are controlled by controlling the connection and disconnection of the power generation control switch; the switch is driven to be switched on and off through manual remote control, and a circuit between the power storage device and the rotary motor of the rotary pendulum on the trolley is controlled to be switched on or switched off.
Further: the lifting capacity detection device comprises two force sensors; is arranged at the joint of the lifting guide pulley at the root part of the crane boom and the vertical square tube.
Further: the electric power storage device is used for storing electric energy generated by the power generation device, is arranged on the trolley platform and comprises a rectifier, an electronic regulator and a storage battery, the alternating current generator is respectively connected with the electronic regulator, the storage battery and a load, alternating current generated by the generator is rectified by the rectifier, and output current is output to be stable voltage through the electronic regulator and charges the storage battery by using a constant positive pole.
Further: when the trolley is in a lifting state, the generator is in a working state and charges the storage battery.
Further: when the trolley is in a descending state, the method comprises the following steps:
(1) a controller of the control device receives a load lifting signal detected by a load cell of the load lifting detection device and judges whether the detected load lifting is smaller than a standard value set by the controller;
(2) if the detected lifting weight is smaller than the standard value, the power generation control switch is switched off, and the generator is in an idling state; and if the detected lifting capacity is not less than the standard value, closing the power generation control switch, and charging the storage battery by the generator.
Further: when the rotary swing of the trolley is controlled, the manual remote control drives the control switch to be switched on, the storage battery supplies power to the rotary swing rotary motor of the trolley, and the rotary motor is driven to work to drive the trolley to swing.
The invention has the beneficial effects that:
1. the invention avoids the direct winding influence of the electric wire and the steel wire rope, does not need to be additionally provided with a generator to supply power to the swing mechanism of the amplitude-variable trolley, utilizes the self mechanical energy to generate electric energy to supply the swing mechanism to work, and reduces the energy consumption.
2. The invention adopts the power generation device, the power storage device, the control device and the lifting capacity detection device to work in a matching way, the generator supplies power to the storage battery when the trolley ascends, and the generator supplies power to the storage battery and idles when the trolley is controlled to descend, thereby meeting the power supply requirement of the rotary motor which is a rotary pendulum actuating device of the trolley and enabling the amplitude-variable trolley to rotate at +/-90 degrees. The rotary motor of the trolley does not need an overlong electric wire to be connected with a generator on the ground, and the working of a steel wire rope on the tower crane is not hindered.
Drawings
FIG. 1 is a schematic diagram of the connections between the elements of the system of the present invention.
FIG. 2 is a schematic circuit diagram of the generator of the system of the present invention charging a battery.
FIG. 3 is a schematic circuit diagram of the system of the present invention with the battery supplying power to the turntable of the cart.
FIG. 4 is a flow chart of the control method of the amplitude variation trolley.
Fig. 5 is a schematic diagram of the position of the system of the present invention on a tower crane.
Fig. 6 is an enlarged schematic view of the portion I in fig. 5.
Fig. 7 is an enlarged schematic view of the mounting position of the cart portion of the present invention.
Fig. 8 is an enlarged schematic view of a circle portion in fig. 7.
Fig. 9 is a side schematic view of fig. 7.
Fig. 10 is an enlarged schematic view of a circle portion in fig. 9.
In the figure: 1. the device comprises a force measuring sensor, 2, a lifting guide pulley, 3, a vertical square tube, 4, a controller, 5, a power generation control switch, 6, a power generator, 7, a large gear, 8, a rectifier, 9, an electronic regulator, 10, a driving control switch, 11, a storage battery, 12, a rotary motor, 13, a trolley platform, 14, a rope guide pulley, 15, a load, 16, a tower body, 17, a crane boom, 18 and a variable amplitude trolley.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): as shown in figure 1, the self-powered system of the luffing dolly of the tower crane comprises a power generation device, an electric power storage device, a luffing control device, a control device and a lifting capacity detection device which are fixed on a dolly platform, wherein the power generation device is respectively connected with a rope guide wheel 14 of the luffing dolly 18 and the electric power storage device, the electric power storage device is connected with a luffing executing device to supply power to the luffing executing device, the control device is respectively connected with the lifting capacity detection device, a generator and a luffing executing mechanism, a drive control switch of the luffing executing device is connected with a remote controller, the generator is controlled to generate power by receiving signals transmitted by the lifting capacity detection device, and the luffing executing device is manually and remotely controlled to work.
As shown in fig. 7 and 8, the power generation device comprises two large gears 7 and two generators 6, wherein the two large gears 7 are respectively fixed on the outer sides of two guide pulleys 14 of the trolley, and the two large gears 7 are respectively engaged with driving gears of the two generators 6; in the process of ascending or descending of the hoisting weight of the trolley, the trolley guide pulley 14 rotates to drive the large gear 7 connected with the trolley guide pulley to rotate and drive the generator 6 meshed with the large gear 7 to drive the gear to rotate, so that the generator 6 generates electricity, mechanical energy is converted into electric energy, and the electric storage device is charged.
As shown in fig. 2, 7-10, which are schematic circuit diagrams of a system of the present invention, a generator charges a storage battery, the storage device (with a conventional structure) is used for storing electric energy generated by a power generation device, and is installed on a trolley platform 13, the storage device includes a rectifier 8, an electronic regulator 9 (with a conventional structure), a storage battery 11 and a load 15, the ac generator 6 is respectively connected to the rectifier 8, the electronic regulator 9, the storage battery 11 and the load 15, ac power generated by the generator 6 is rectified by the rectifier 8, and an output current is output by the electronic regulator 9 to output a stable voltage, and the storage battery 11 is charged by a constant positive electrode. Specifically, the method comprises the following steps: when the voltage of the generator 6 rises to be greater than the voltage of the storage battery 11, the generator 6 starts to charge the storage battery 11, and the voltage of the generator 6 rises rapidly along with the rise of the rotation speed of the trolley pulley. When the generator 6 voltage rises to equal the upper regulation limit, the electronic regulator 9 starts regulating the voltage and the generator 6 output voltage drops. The generator voltage rises when the generator 6 voltage drops to equal the lower regulation limit. In this way, the output voltage of the generator 6 is controlled within a certain range.
As shown in fig. 3, a schematic diagram of the swing control device of the system of the present invention is shown, that is: the circuit schematic diagram that the storage battery supplies power to the slewing mechanism, the slewing executing component is the slewing motor 12 of the trolley, the wiring terminals of the forward and reverse rotation control switch of the slewing motor 12 are a, c, b and d respectively, and when the driving control switch 8 controls S1 and S2 to be closed with b and c respectively, the slewing motor 10 rotates forward; when the driving control switch 8 controls the switch S1 and the switch S2 to close a and d respectively, the rotary motor 12 rotates reversely; the rotary trolley finishes the rotary swing work.
As shown in fig. 1, 7-10, the control device is fixed on a trolley platform 13, and comprises a controller 4 and a control execution module, wherein the controller 4 is provided with a wireless communication module for communicating with a tower crane main control system, and the control execution module comprises a power generation control switch 5 and a drive control switch 10; the controller 4 is communicated with a tower crane main control system through a wireless communication module and used for receiving signals transmitted by the lifting capacity detection device, the controller 4 is connected with the power generation control switch 5, the power generation control switch 5 is respectively connected with the power generator 6 and the rectifier 8 of the electric storage device, the connection and disconnection of circuits of the power generator 6 and the storage battery 11 are controlled by controlling the connection and disconnection of the power generation control switch 5, the driving control switch 10 is respectively connected with the storage battery 11 of the electric storage device and the trolley rotary motor 12, the driving control switch 10 is controlled through manual remote control, and the connection or disconnection of circuits between the electric storage device and the trolley upper rotary swing rotary motor 12 are controlled.
As shown in fig. 5 and 6, the load lifting amount detecting device includes two load cells 1; the lifting guide pulleys 2 which are arranged in parallel at the joints of the vertical square pipes 3 close to the root parts of the crane arms 17 and the vertical square pipes 3 can reflect the lifting weight; and the load lifting signal detected by the load cell 1 is sent to the trolley control device in a wireless transmission mode through the tower crane control system.
As shown in fig. 4, when the present invention works, the control method is as follows:
when the trolley is in a hoisting state, the generator 6 is in a working state, and the controller 4 controls the power generation control switch 5 to be closed to charge the storage battery 11.
When the trolley is in a lifting weight descending state, the controller 4 of the control device receives a lifting weight signal detected by the load cell 1 of the lifting weight detection device, judges whether the detected lifting weight is smaller than a standard value set by the controller 4 or not in order to avoid increasing the suspension degree of a lifting rope below a crane boom, and if the detected lifting weight is smaller than the standard value, the power generation control switch 5 is switched off, the generator 6 is in an idling state and does not generate a rotational resistance moment on a guide pulley; if the detected lifting capacity is not less than the standard value, the power generation control switch 5 is closed, and the generator 6 charges the storage battery 11;
when the trolley needs to swing, the manual remote control drive control switch 10 is closed, the storage battery 11 supplies power to the rotary motor 12, and the rotary motor 12 is driven to work.
Through the lifting and descending of the hoisting weight, the generator 6 controls the power generation control switch 5 through the controller 4 to charge the storage battery 11, and the control switch 10 is driven through manual remote control to enable the storage battery 11 to supply power to the rotary motor 12 to drive the rotary pendulum actuating device to work.
Claims (7)
1. The utility model provides a tower crane rotary pendulum becomes width of cloth dolly from power supply system which characterized in that: the power generation device is respectively connected with a rope guide wheel and an electric power storage device of the amplitude-variable trolley, the electric power storage device is connected with a rotary pendulum executing device of the trolley through the control device to supply power for the rotary pendulum executing device, the rotary pendulum executing device on the trolley is driven to work, the control device is respectively connected with the load lifting amount detecting device, a generator and the rotary pendulum executing device of the trolley, the generator is controlled to generate power by receiving signals transmitted by the load lifting amount detecting device, and the rotary pendulum executing device is controlled to work by manual remote control; the control device is fixed on the trolley platform and comprises a controller and a control execution module, the controller is provided with a wireless communication module which is communicated with a tower crane main control system, and the control execution module comprises a power generation control switch and a driving control switch; the controller is communicated with a tower crane main control system through a wireless communication module and used for receiving signals transmitted by the lifting load detection device, the controller is connected with a power generation control switch of the control execution module, the power generation control switch is respectively connected with a power generator and a rectifier of the power storage device, a drive control switch of the control execution module is respectively connected with a storage battery of the power storage device and a rotary motor of the trolley swing execution device, and the connection and disconnection of circuits of the power generator and the storage battery are controlled by controlling the connection and disconnection of the power generation control switch; the switch is driven to be switched on and off through manual remote control, and a circuit between the power storage device and a rotary motor of the rotary swing executing device on the trolley is controlled to be switched on or switched off.
2. The self-powered system of the rotary-pendulum amplitude-variable trolley of the tower crane according to claim 1, characterized in that: the power generation device comprises two large gears and two generators, the two large gears are respectively fixed on the outer sides of the two guide pulleys of the trolley, and the two large gears are respectively meshed with the driving gears of the two generators; when the hoisting weight of the trolley rises or falls, the guide pulley of the trolley rotates to drive the large gear connected with the trolley to rotate and drive the generator driving gear meshed with the large gear to rotate, so that the generator generates electricity, mechanical energy is converted into electric energy, and the electric storage device is charged.
3. The self-powered system of the rotary-pendulum amplitude-variable trolley of the tower crane according to claim 1, characterized in that: the lifting capacity detection device comprises two force sensors; and the lifting guide pulleys are arranged at the joints of the lifting guide pulleys close to the vertical steel pipes at the root parts of the crane booms in parallel and the vertical square pipes.
4. The self-powered system of the rotary-pendulum amplitude-variable trolley of the tower crane according to claim 1, characterized in that: the electric power storage device is used for storing electric energy generated by the power generation device, is arranged on the trolley platform and comprises a rectifier, an electronic regulator and a storage battery, the alternating current generator is respectively connected with the electronic regulator, the storage battery and a load, alternating current generated by the generator is rectified by the rectifier, and output current is output to be stable voltage through the electronic regulator and charges the storage battery by using a constant positive pole.
5. The control method of the self-powered system of the rotary-pendulum amplitude-variable trolley of the tower crane according to claim 1, characterized in that: when the trolley is in a lifting state, the generator is in a working state and charges the storage battery.
6. The control method of the self-powered system of the rotary-pendulum amplitude-variable trolley of the tower crane according to claim 1, characterized in that: when the trolley is in a descending state, the method comprises the following steps:
(1) a controller of the control device receives a load lifting signal detected by a load cell of the load lifting detection device and judges whether the detected load lifting is smaller than a standard value set by the controller;
(2) if the detected lifting weight is smaller than the standard value, the power generation control switch is switched off, and the generator is in an idling state; and if the detected lifting capacity is not less than the standard value, closing the power generation control switch, and charging the storage battery by the generator.
7. The control method of the self-powered system of the rotary-pendulum amplitude-variable trolley of the tower crane according to claim 5 or 6, characterized in that: when the rotary swing of the trolley is controlled, the manual remote control drives the control switch to be switched on, the storage battery supplies power to the rotary swing rotary motor of the trolley, and the rotary motor is driven to work to drive the trolley to swing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561830.6A CN109733997B (en) | 2018-12-20 | 2018-12-20 | Self-powered system of rotary-pendulum amplitude-variable trolley of tower crane and control method thereof |
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| CN201811561830.6A CN109733997B (en) | 2018-12-20 | 2018-12-20 | Self-powered system of rotary-pendulum amplitude-variable trolley of tower crane and control method thereof |
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| CN109733997A CN109733997A (en) | 2019-05-10 |
| CN109733997B true CN109733997B (en) | 2020-04-28 |
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| CN201811561830.6A Active CN109733997B (en) | 2018-12-20 | 2018-12-20 | Self-powered system of rotary-pendulum amplitude-variable trolley of tower crane and control method thereof |
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| CN112573393A (en) * | 2020-12-03 | 2021-03-30 | 深圳市九象数字科技有限公司 | Visual wireless charging device of tower machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2649966B1 (en) * | 1989-07-18 | 1991-09-27 | Potain Sa | MOTORIZED LOAD ROTATING DEVICE, SELF-POWERED, FOR CABLE LIFTING APPARATUS |
| JP5111775B2 (en) * | 2006-04-11 | 2013-01-09 | ナブテスコ株式会社 | Winch drive |
| KR100953401B1 (en) * | 2009-10-23 | 2010-04-20 | (주) 모스펙 | Dual motor hoist |
| CN204823941U (en) * | 2015-07-04 | 2015-12-02 | 河南中锐起重设备有限公司 | Electronic mast machinery of hoist |
| CN106672807B (en) * | 2017-01-09 | 2018-06-12 | 沈阳建筑大学 | A kind of tower crane lifting self-generating device and tower crane self power generation lifting monitoring system |
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