CN216817206U - Electrical control structure of stage lifting equipment braking system - Google Patents
Electrical control structure of stage lifting equipment braking system Download PDFInfo
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- CN216817206U CN216817206U CN202123430709.XU CN202123430709U CN216817206U CN 216817206 U CN216817206 U CN 216817206U CN 202123430709 U CN202123430709 U CN 202123430709U CN 216817206 U CN216817206 U CN 216817206U
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Abstract
The utility model relates to the technical field of electrical control, in particular to an electrical control structure of a stage lifting equipment braking system, which comprises a plurality of relatively independent lifting parts, wherein brakes are arranged on the lifting parts, and the braking circuits of the brakes are controlled to be switched on and off through brake breakers and brake contactors; the brake power supply system is characterized by further comprising a control assembly and a main power supply, the main power supply branches into a brake power supply branch, the brake circuit of each lifting component is connected to the brake power supply branch in parallel, a main breaker and a main contactor are arranged on the brake power supply branch, and the control assembly is communicated with the main contactor and controls the on-off of the main contactor. The utility model can respectively diagnose the working conditions of a plurality of braking components which work independently and judge whether the braking components can realize normal braking; when the brake can not realize normal braking, secondary control is realized through disconnection of the main circuit breaker and the main contactor, and the brake is ensured to lose power to realize braking operation, so that the safety and reliability of stage lifting equipment are improved.
Description
Technical Field
The utility model relates to the technical field of electrical control, in particular to an electrical control structure of a stage lifting equipment braking system.
Background
The existing devices for lifting stage performances are mainly booms and lifting stages, which control lifting and braking through a plurality of control devices, such as Programmable Logic Controllers (PLC), circuit breakers, contactors, relays, frequency converters, braking resistors, etc., and the execution mechanical part of which mainly comprises a motor, an electromagnetic brake, a transmission mechanism, etc. The existing hoisting equipment is generally provided with a main power supply, and respectively provides a power supply to drive a motor to lift, and additionally provides a braking power supply for controlling a contactor, a circuit breaker and the like to control a brake, so that the lifting and braking of the hoisting equipment are integrally stopped.
However, the existing stage lifting equipment has some defects, specifically: the system lacks the detection of several key devices such as a frequency converter, a relay, a contactor and the like for controlling the brake to work. If the internal output source (relay or transistor), the relay and the contactor of the frequency converter are damaged (adhered), the brake cannot be closed, the brake cannot be provided, and if the frequency converter stops torque output, equipment can freely fall under the action of gravity, so that safety accidents are caused. According to the technical scheme, a power supply control structure is independently arranged at each part needing to be lifted to respectively control the operation of each lifting part, but the existing stage lifting equipment is generally numerous, each lifting part works independently, if power supply control is independently arranged on each lifting part, contactors and circuit breakers needing to be arranged are increased in multiples, and the system cost can be greatly improved; when a certain lifting part fails to work normally, other lifting parts still work normally, the failure is difficult to find in time, the troubleshooting is inconvenient, the troubleshooting needs to be carried out one by one, and the efficiency of system maintenance is not improved; and the installation space that this kind of scheme required is big, and the stage hoisting equipment that has installed the shaping and put into operation is difficult to carry out transformation and application.
Therefore, the current stage lifting equipment brake control system has great defects, the unreliable braking causes potential safety hazards of the system, the system is optimized and improved, and the braking reliability of the system is improved. Therefore, a more reasonable technical scheme needs to be provided to solve the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art mentioned in the above, the utility model provides an electrical control structure of a stage lifting equipment braking system, which can detect the braking states of a plurality of system components in the system in real time through the state feedback of a breaker of each lifting component, thereby efficiently detecting whether the braking performance of the system has a fault; the independent power supply control structure is used for controlling power supply of all the lifting parts, the number of parts such as circuit breakers, contactors and the like arranged in a braking system can be greatly reduced, cost can be reduced, and control efficiency is improved.
In order to achieve the purpose, the utility model specifically adopts the technical scheme that:
the electric control structure of the stage lifting equipment braking system comprises a plurality of relatively independent lifting parts, wherein brakes are arranged on the lifting parts, and the braking circuits of the brakes are controlled to be switched on and off through brake breakers and brake contactors; the system comprises a main power supply, a brake power supply branch, a brake circuit of each lifting component, a main breaker and a main contactor, wherein the main power supply branch is branched to form a brake power supply branch, the brake circuit of each lifting component is connected in parallel to the brake power supply branch, the brake power supply branch is provided with the main breaker and the main contactor, and the control assembly is communicated with the main contactor and controls the on-off of the main contactor.
Above-mentioned public electrical control structure to total circuit breaker and total contactor are as the secondary on-off control of stopper, when the brake circuit breaker and the brake contactor of lifting means department break down, can carry out power-off control, thereby make the stopper lose the electric brake, avoid lifting means the condition out of control to appear.
Furthermore, in the utility model, the lifting component further comprises a lifting motor, and a power supply circuit of the lifting motor is provided with a frequency converter and a motor breaker for controlling the on-off of the power supply circuit. When the scheme is adopted, each lifting motor works relatively independently and provides lifting power for the corresponding lifting part respectively.
Further, when the main power supply supplies power to the lifting component, a bus plus branch structure is also adopted, and specifically, one of the feasible options is given here: the main power supply branches into a lifting power supply branch, and the power supply circuit of each lifting part is connected to the lifting power supply branch in parallel. When the scheme is adopted, the power supply circuits of all the lifting parts do not influence each other and are only influenced by the control of the lifting power supply branch circuits.
Further, in the present invention, in order to realize the automation of the braking, a connection is established between the lifting member and the brake, and in particular, the optimization is performed and one of the possible options is enumerated: the frequency converter of each lifting component is connected and communicated with the control assembly, and a brake relay is arranged between the frequency converter and the brake contactor and used for adjusting the current state of the brake contactor. When the scheme is adopted, in the working process of the lifting motor, the frequency converter and the brake relay adjust the state of the frequency converter and the brake relay according to the working state of the lifting motor, so that the regulation control of the brake contactor is realized, and the start and stop of the brake are controlled.
Further, in the present invention, it is required to acquire the working state of the brake to ensure whether it can provide normal braking operation, and feedback of the working state can be achieved in various ways, where optimization is performed and one of the feasible options is shown: and the brake contactor and the frequency converter are in communication connection so as to feed back the current state of the brake contactor to the frequency converter. When adopting such scheme, brake contactor's current state can be fed back to converter department, and control assembly passes through the converter and can acquires and obtain brake contactor state, for example whether takes place the adhesion, can realize on-off adjustment etc. to control assembly decides whether through adjusting the operating condition with the control brake to total circuit breaker and total contactor on the braking power supply branch road.
Still further, obtaining the working state of the brake can be achieved in more ways, not limited to transmission through a frequency converter, and is optimized to give another feasible option: the brake contactor is in communication connection with the control assembly so as to feed back the current state of the brake contactor to the control assembly. When adopting such scheme, accessible sets for the signal line and carries out data transmission between brake contactor and the control module, also can carry out the transmission through wireless connection.
Further, in the present invention, the control unit may employ various devices capable of data processing, which is optimized and one of the following possible options is presented: the control assembly comprises a PLC. When the scheme is adopted, the PLC identifies and processes signals from the frequency converter or the brake contactor, judges whether the brake can be realized, and controls the main breaker and the main contactor to carry out secondary control so as to ensure that the brake is powered off to realize braking operation if the brake cannot be smoothly braked.
Further, the connection structure of the PLC and the main contactor is optimized, and one of the possible options is as follows: and a regulating relay is arranged between the PLC and the main contactor.
Compared with the prior art, the utility model has the beneficial effects that:
the electrical control structure provided by the utility model can be used for respectively diagnosing the working conditions of a plurality of independently working braking components and judging whether the braking components can realize normal braking; when the brake can not realize normal braking, secondary control can be realized by disconnecting the main circuit breaker and the main contactor, and the brake is ensured to lose power to realize braking operation, so that the safety and reliability of the stage lifting equipment are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of the constituent modules of the electrical control structure.
Fig. 2 is a schematic diagram of a control assembly part circuit connection structure of the electrical control structure.
Fig. 3 is a schematic diagram of a circuit connection structure at one of the lifting elements of the electrical control structure.
Fig. 4 is a schematic diagram of a circuit connection structure at another lifting component of the electrical control structure.
Detailed Description
The utility model is further explained below with reference to the drawings and the specific embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the utility model. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Examples
The electric control structure to stage lifting means among the prior art is comparatively huge complicated, can't carry out solitary fault detection to every braking part to unable normal braking when the braking part breaks down has the current situation of potential safety hazard, and the problem that exists in order to overcome prior art is optimized and improved to this embodiment.
Specifically, as shown in fig. 1, the present embodiment provides an electrical control structure of a stage lifting device braking system, including a plurality of relatively independent lifting components, where a brake is disposed on the lifting components, and a braking circuit of the brake is controlled to be switched on and off by a brake circuit breaker and a brake contactor; the system comprises a main power supply, a brake power supply branch, a brake circuit of each lifting component, a main breaker and a main contactor, wherein the main power supply branch is branched to form a brake power supply branch, the brake circuit of each lifting component is connected in parallel to the brake power supply branch, the brake power supply branch is provided with the main breaker and the main contactor, and the control assembly is communicated with the main contactor and controls the on-off of the main contactor.
Above-mentioned public electrical control structure to total circuit breaker and total contactor are as the secondary on-off control of stopper, when the brake circuit breaker and the brake contactor of lifting means department break down, can carry out power-off control, thereby make the stopper lose the electric brake, avoid lifting means the condition out of control to appear.
In this embodiment, the lifting member further includes a lifting motor, and a power supply circuit of the lifting motor is provided with a frequency converter and a motor breaker for controlling the on-off of the power supply circuit. When the scheme is adopted, each lifting motor works relatively independently and provides lifting power for the corresponding lifting part respectively.
When the main power supply supplies power to the lifting component, a bus plus branch structure is also adopted, and specifically, one of the feasible options is adopted here: the main power supply branches into a lifting power supply branch, and the power supply circuit of each lifting part is connected to the lifting power supply branch in parallel. When the scheme is adopted, the power supply circuits of all the lifting parts do not influence each other and are only influenced by the control of the lifting power supply branch circuits.
Preferably, in this embodiment, the circuits shown in fig. 2, fig. 3 and fig. 4 are referred to, and each circuit is configured and each component is provided.
In this embodiment, in order to achieve automation of the braking, a connection is established between the lifting member and the brake, in particular, here optimized and using one of the possible options: the frequency converter of each lifting component is connected and communicated with the control assembly, and a brake relay is arranged between the frequency converter and the brake contactor and used for adjusting the current state of the brake contactor. When the scheme is adopted, in the working process of the lifting motor, the frequency converter and the brake relay adjust the state of the frequency converter and the brake relay according to the working state of the lifting motor, so that the regulation control of the brake contactor is realized, and the start and stop of the brake are controlled.
In this embodiment, the working state of the brake needs to be acquired to ensure whether the brake can provide normal braking operation, and the feedback of the working state can be realized in various ways, where optimization is performed and one of the feasible options is adopted: and the brake contactor and the frequency converter are in communication connection so as to feed back the current state of the brake contactor to the frequency converter. When adopting such scheme, brake contactor's current state can be fed back to converter department, and control assembly passes through the converter and can acquires and obtain brake contactor state, for example whether takes place the adhesion, can realize on-off adjustment etc. to control assembly decides whether through adjusting the operating condition with the control brake to total circuit breaker and total contactor on the braking power supply branch road.
In other embodiments, obtaining the working state of the brake can be achieved in more ways, not limited to transmission through a frequency converter, and in other embodiments, another feasible option can be adopted: the brake contactor is in communication connection with the control assembly so as to feed back the current state of the brake contactor to the control assembly. When adopting such scheme, accessible sets for the signal line and carries out data transmission between brake contactor and the control module, also can carry out the transmission through wireless connection.
In this embodiment, the control unit may employ a variety of devices capable of data processing, where optimization is performed and one of the following possible options is used: the control assembly comprises a PLC. When the scheme is adopted, the PLC identifies and processes signals from the frequency converter or the brake contactor, judges whether the brake can be realized, and controls the main breaker and the main contactor to carry out secondary control so as to ensure that the brake is powered off to realize braking operation if the brake cannot be smoothly braked.
Preferably, the connection structure of the PLC and the main contactor is optimized, and one of the feasible options is adopted: and a regulating relay is arranged between the PLC and the main contactor.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (8)
1. Stage lifting means braking system electrical control structure, its characterized in that: the lifting device comprises a plurality of relatively independent lifting components, wherein brakes are arranged on the lifting components, and the braking circuits of the brakes are controlled to be switched on and off through braking circuit breakers and braking contactors; the system comprises a main power supply, a brake power supply branch, a brake circuit of each lifting component, a main breaker and a main contactor, wherein the main power supply branch is branched to form a brake power supply branch, the brake circuit of each lifting component is connected in parallel to the brake power supply branch, the brake power supply branch is provided with the main breaker and the main contactor, and the control assembly is communicated with the main contactor and controls the on-off of the main contactor.
2. Stage lifting equipment braking system electrical control structure according to claim 1, characterized in that: the lifting component further comprises a lifting motor, and a frequency converter and a motor breaker used for controlling the on-off of the power supply circuit are arranged in the power supply circuit of the lifting motor.
3. Stage lifting equipment braking system electrical control structure according to claim 2, characterized in that: the main power supply branches into a lifting power supply branch, and the power supply circuit of each lifting part is connected to the lifting power supply branch in parallel.
4. Stage lifting equipment braking system electrical control structure according to claim 2, characterized in that: the frequency converter of each lifting component is connected and communicated with the control assembly, and a brake relay is arranged between the frequency converter and the brake contactor and used for adjusting the current state of the brake contactor.
5. A stage lifting equipment braking system electrical control structure according to any one of claims 2 to 4, characterized in that: and the brake contactor and the frequency converter are in communication connection so as to feed back the current state of the brake contactor to the frequency converter.
6. A stage lifting equipment braking system electrical control structure according to any one of claims 2 to 4, characterized in that: the brake contactor is in communication connection with the control assembly so as to feed back the current state of the brake contactor to the control assembly.
7. Stage lifting equipment braking system electrical control structure according to claim 1, characterized in that: the control assembly comprises a PLC.
8. Stage lifting equipment braking system electrical control structure according to claim 7, characterized in that: and a regulating relay is arranged between the PLC and the main contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430709.XU CN216817206U (en) | 2021-12-30 | 2021-12-30 | Electrical control structure of stage lifting equipment braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430709.XU CN216817206U (en) | 2021-12-30 | 2021-12-30 | Electrical control structure of stage lifting equipment braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216817206U true CN216817206U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123430709.XU Active CN216817206U (en) | 2021-12-30 | 2021-12-30 | Electrical control structure of stage lifting equipment braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216817206U (en) |
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2021
- 2021-12-30 CN CN202123430709.XU patent/CN216817206U/en active Active
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Address after: 610000 unit 1, building 6, No. 1166, Tianlong Avenue, Jinniu high tech Industrial Park, Chengdu, Sichuan Patentee after: Chengdu Yanxing Automation Technology Co.,Ltd. Address before: 610000 unit 1, building 6, No. 1166, Tianlong Avenue, Jinniu high tech Industrial Park, Chengdu, Sichuan Patentee before: CHENGDU YANXING AUTOMATION ENGINEERING Co.,Ltd. |