Testing device of brake

Abstract

The utility model discloses a testing device for a brake, and relates to the field of mechanical equipment, a starting switch is connected with a power supply, a controller is controlled to be powered on or powered off by means of switching on or switching off of the starting switch, when the controller is powered on, the connected power supply is switched on to a brake to be tested by the switched-on control switch, so that the brake to be tested is controlled to be started, and the brake to be tested is started. At the moment, an action feedback module connected with the to-be-tested brake feeds back an action signal of the to-be-tested brake to the controller, so that the controller determines whether the to-be-tested brake can work normally or not according to the fed-back action signal, and the process of testing the reliability of the to-be-tested brake is completed; the testing device can simultaneously test the safety and reliability of brakes and additional brakes of equipment such as escalators, moving sidewalks and elevators, is wide in application range, small in size, low in manufacturing cost and convenient to use, effectively realizes the reliability testing process of the brakes, and ensures the safety and reliability of the to-be-tested brakes.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to a brake testing device. Background Art

[0002] With the continuous development of automation equipment, drive devices have been widely used in daily life. For example, escalators, moving walkways, elevators and other equipment usually include drive devices and brakes, where the drive device is used to drive the equipment to move, and the brake is used to control the deceleration or stop of the movement process. The safety and reliability of the brake largely determine the safety and reliability of the entire equipment. Therefore, in order to ensure the safety and reliability of these equipment and avoid safety risks during user use, it is necessary to perform reliability testing on the brakes in the equipment to ensure that the brakes can work stably and reliably before they can be put into use. However, in the prior art, there is no universal and effective means for reliability testing of brakes. Utility Model Content

[0003] The utility model aims to provide a test device for a brake, wherein an action feedback module connected to the brake to be tested feeds back an action signal of the brake to be tested to a controller, so that the controller determines whether the brake to be tested can work normally according to the feedback action signal, and completes the test process for the reliability of the brake to be tested; the test device can simultaneously take into account the safety and reliability tests of the brakes of equipment such as escalators, moving walkways and elevators, as well as the additional brakes, has a wide range of applications, is small in size, has a low manufacturing cost, is easy to use, effectively realizes the reliability test process for the brake, and ensures the safety and reliability of the brake to be tested.

[0004] In order to solve the above technical problems, the utility model provides a brake testing device, comprising:

[0005] A start switch, a first end of which is connected to the power supply, and a second end of which is connected to the first input end of the controller, for controlling power on and power off of the controller;

[0006] A control switch, the input end of which is connected to the power supply, the control end of which is connected to the output end of the controller, and the output end of which is connected to the brake to be tested, and is used to be turned on when the controller is powered on and turned off when the controller loses power;

[0007] An action feedback module, whose input end is connected to the brake to be tested and whose output end is connected to the second input end of the controller, and is used for feeding back the action signal of the brake to be tested to the controller;

[0008] The controller is used to obtain a test result of the brake to be tested based on the action signal.

[0009] Optionally, the brake testing device further comprises a power conversion module, an input end of the power conversion module is connected to an output end of the control switch, and an output end of the power conversion module is connected to the brake to be tested.

[0010] Optionally, the power conversion module is a transformer and / or a rectifier module.

[0011] Optionally, the brake testing device further comprises a prompt module, an input end of which is connected to an output end of the controller, and is used to execute a corresponding prompt strategy based on a test result output by the controller.

[0012] Optionally, the brake testing device further comprises a switching power supply, wherein an input end of the switching power supply is connected to the second end of the start switch, and an output end of the switching power supply is connected to a power supply end of the controller.

[0013] Optionally, the control switch is a relay, a first end of the coil of the relay is connected to the output end of the controller, a second end is connected to the power supply end of the controller, a first end of the contact of the relay is connected to the power supply, and a second end is connected to the brake to be tested.

[0014] Optionally, the action feedback module includes an action feedback plate and an action feedback switch, wherein the action feedback plate is connected to the brake to be tested, and when the brake to be tested is actuated, the brake to be tested drives the action feedback plate to actuate, so that the action feedback switch is closed.

[0015] Optionally, the brake testing device also includes a reset device, which is connected to the action feedback plate. The reset device is used to reset the action feedback plate to an initial state when the brake to be tested does not apply force to the action feedback plate, so as to disconnect the action feedback switch.

[0016] Optionally, the reset device includes an action rod, a reset spring and a limit protrusion, the action rod is connected to the action feedback plate, the limit protrusion is fixed on the action rod, one end of the reset spring is against the support frame, and the other end is against the limit protrusion.

[0017] The utility model provides a brake test device, comprising a start switch, a control switch, an action feedback module and a controller. The start switch is connected to a power supply, and uses its own on-off control to control the controller to be powered on or off. When the controller is powered on, the control switch connected to the controller will also be turned on, and the turned-on control switch connects the connected power supply to the brake to be tested, thereby controlling the start of the brake to be tested. At this time, the action feedback module connected to the brake to be tested will feed back the action signal of the brake to be tested to the controller, so that the controller can determine whether the brake to be tested can work normally according to the fedback action signal, and complete the test process of the reliability of the brake to be tested. This test device can simultaneously take into account the safety and reliability tests of the brakes of equipment such as escalators, moving walkways and elevators and the additional brakes, has a wide range of applications, is small in size, has a low manufacturing cost, is easy to use, effectively realizes the reliability test process of the brake, and ensures the safety and reliability of the brake to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the structure of a brake testing device provided by the utility model;

[0020] Figure 2 A schematic diagram of the circuit structure of a brake testing device provided by the utility model;

[0021] Figure 3 A front view of the mechanical structure layout of a brake testing device provided by the utility model;

[0022] Figure 4 A top view of the mechanical structure layout of a brake testing device provided by the utility model. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a brake testing device. An action feedback module connected to the brake to be tested will feed back the action signal of the brake to be tested to the controller, so that the controller can determine whether the brake to be tested can work normally according to the feedback action signal, and complete the reliability test process of the brake to be tested. This testing device can take into account the safety and reliability tests of brakes of equipment such as escalators, moving walkways and elevators, as well as additional brakes. It has a wide range of applications, a small size, a low manufacturing cost, and is easy to use. It can effectively realize the reliability test process of the brake and ensure the safety and reliability of the brake to be tested.

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a brake test device provided by the utility model; please refer to Figure 2 , Figure 2 This is a circuit diagram of a brake test device provided by the utility model; please refer to Figure 3 , Figure 3 This is a front view of the mechanical structure layout of a brake testing device provided by the utility model; please refer to Figure 4 , Figure 4 The top view of the mechanical structure layout of a brake test device provided by the utility model. In order to solve the above technical problems, the utility model provides a brake test device, including:

[0026] A start switch CB, a first end of which is connected to the power supply, and a second end of which is connected to the first input end of the controller 1, for controlling power on and power off of the controller 1;

[0027] The control switch 2 has an input end connected to the power supply, a control end connected to the output end of the controller 1, and an output end connected to the brake SOL to be tested, and is used to be turned on when the controller 1 is powered on, and turned off when the controller 1 loses power;

[0028] An action feedback module 3, whose input end is connected to the brake SOL to be tested, and whose output end is connected to the second input end of the controller 1, is used for feeding back the action signal of the brake SOL to be tested to the controller 1;

[0029] The controller 1 is used for obtaining the test result of the brake SOL to be tested based on the action signal.

[0030] Specifically, when it is necessary to perform a reliability test on the brake SOL to be tested, the starting switch CB is closed, and the closed starting switch CB connects the power supply connected to the first end to the controller 1. The controller 1 is started after being powered on, and the controller 1 that is started after being powered on controls the control switch 2 to be turned on. The turned-on control switch 2 connects the power supply and the brake SOL to be tested, and the brake SOL to be tested starts to move after being powered on. At the same time, the action feedback module 3 connected thereto will feed back the action status of the brake SOL to be tested to the controller 1 in the form of an action signal. When the brake SOL to be tested is working normally, certain movements and corresponding actions will be generated. When the brake SOL to be tested cannot work normally, it is difficult to generate corresponding actions. Therefore, the action signal fed back by the action feedback module 3 can obviously represent the normal working condition of the brake SOL to be tested, and the controller 1 can determine the reliability test result of the brake SOL to be tested after receiving the action signal.

[0031] It is not difficult to understand that there are multiple options for the specific type and implementation method of the action signal fed back by the action feedback module 3. Switch signals or other types of signals can be used. The present application does not make any special restrictions here. The present application does not make any special restrictions here on the specific types and implementation methods of the starting switch CB, the control switch 2, the action feedback module 3 and the controller 1. The starting switch CB can be implemented by switching devices such as circuit breakers and isolating switches. The control switch 2 can be implemented by power electronic switching devices such as relays and MOS tubes (Metal-Oxide-Semiconductor Field-Effect Transistor). When the action signal is a switch signal, the action feedback module 3 can be implemented by combining switching devices and structures that can reflect the action process of the brake SOL to be tested. The controller 1 can be implemented by various types of control chips or control devices such as MCM (Multi-Chip Module) and MCU (Microcontroller Unit).

[0032] It should be noted that after the controller 1 is powered on, the specific control method of the control switch 2 can be set according to the specific type and implementation method of the control switch 2. The process of obtaining the test result based on the action signal can also be set according to the specific implementation method of the action signal in the actual application and the signal processing method supported by the controller 1 itself. Furthermore, for the brake SOL to be tested, the movement process corresponding to its normal working process often needs to continue for a period of time to ensure the normal braking function. After receiving the action signal corresponding to the normal action of the brake SOL to be tested, the controller 1 can further add a delayed detection process to determine whether the action of the brake SOL to be tested can stably continue for a preset time; this application does not make any special restrictions on the number of repeated tests of the entire reliability test. Under normal circumstances, multiple tests need to be repeated to ensure the reliability and safety of the brake SOL to be tested.

[0033] Furthermore, after the action signal corresponding to the normal action of the brake SOL to be tested is fed back to the controller 1, the controller 1 can control the cutting off of the power supply to the brake SOL to be tested when the fed back action signal meets the delay setting, and reset the brake SOL to be tested by cutting off the power supply; after the brake SOL to be tested is reset, the corresponding signal of the reset action can also be fed back, so that the controller 1 can promptly determine whether the brake SOL to be tested has been reset, and the controller 1 can continue to supply power to the brake SOL to be tested after receiving the corresponding signal of the feedback reset action and after a certain delay, so that the brake SOL to be tested repeats the action, and the same The internal counter of controller 1 is processed by +1; controller 1 repeats the above steps by continuously controlling to make the brake SOL to be tested repeat the action and reset. When the value of the internal counter reaches the preset standard value, the complete test process of the brake SOL to be tested is realized, and then controller 1 can prompt the detection success through prompt modules such as buzzer or display light; if in the process of repeated control of the brake SOL to be tested, the controller 1 still does not receive the action feedback signal of the brake SOL to be tested after exceeding the maximum delay setting time, the detection of controller 12 fails, and the detection failure is prompted through the prompt module.

[0034] It is not difficult to understand that the brake test device provided by the utility model can be used for the safety and reliability test of brakes in equipment such as escalators, moving walkways and elevators, and can take into account the safety and reliability test of brakes of escalators, moving walkways, elevators and additional brakes of escalators and moving walkways at the same time. Brakes, additional brakes or other types of braking devices can be tested for reliability using this test device. The specific type and implementation method of the brake are not particularly limited in this application. For brakes such as detachable additional brakes, they can be directly installed on the test device for the test process. For non-detachable brakes, the corresponding lines can also be directly connected to the brakes; the specific type and implementation method of the power supply are not particularly limited in this application. The entire test device can be applicable to brakes with different power supply specifications, has a wide range of applications, is small in size, has a low manufacturing cost, and has a wide range of applications. The interval time and number of tests of the entire brake safety and reliability action test can be set independently, and it is convenient to use.

[0035] As a specific embodiment, Figure 2 , Figure 3 and Figure 4Taking the test device shown in the figure as an example, COM0 of the controller 1 is the common terminal, POD is the feedback signal port connected to the action feedback module 3, P40 is the output terminal connected to the control switch 2, and P41 is the output terminal connected to the prompt module BZ. In order to facilitate the connection between the controller 1 and other devices, a wiring terminal 37 is also provided on the test device. The brake SOL to be tested is an electromagnetic brake. When the electromagnetic brake works normally, the electromagnetic coil inside it is energized and drives the electromagnetic brake to move in parallel to achieve normal braking function. After the reliability test starts, the start switch CB is closed first, and the closed start switch CB makes the controller 1 powered, thereby controlling the coil of the relay EBR as the control switch 2 to be powered, and the corresponding contacts of the relay EBR are closed, so that the electromagnetic brake is powered. At this time, if the electromagnetic brake works normally, the action process of the electromagnetic brake that moves in parallel after power is turned on will apply force, and the action process of the electromagnetic brake that has reached the stroke will simultaneously pull the action rod 32 and squeeze the action feedback plate 31. The action feedback plate 31 after being squeezed moves to change the action feedback switch EBS from the initial open state to the closed state. At this time, the controller 1 receives the switch signal at the feedback port POD connected to the action feedback switch EBS; If the switch signal is disconnected, it means that the electromagnetic brake cannot work normally and cannot apply enough force to the action rod 32 and the action feedback plate 31. The action feedback switch EBS is in the disconnected state. At this time, the buzzer of the prompt module BZ executes the prompt strategy corresponding to the test failure and continues to buzz uninterruptedly; if the switch signal is connected, it means that the electromagnetic brake is in a normal working state at this time, and the controller 1 continues to receive the switch signal to determine whether the normal working state of the electromagnetic brake reaches the set time interval; if the set time interval cannot be reached, it means that although the electromagnetic brake can act normally, the duration of the action cannot reach Braking requirements can also be met by controlling the prompt module BZ to execute the prompt strategy corresponding to the test failure, with continuous and uninterrupted buzzing; if the set time interval can be reached, it means that the electromagnetic brake can operate normally and the duration of the action can meet the braking requirements. At this time, the controller 1 controls the release of the contacts of the relay EBR by controlling the de-energization of the coil of the relay EBR, and the reset spring 33 will automatically restore the action rod 32 and the action feedback plate 31 to return them to their initial positions; repeat the above test process multiple times, and when the number of tests reaches the set value, the controller 1 controls the prompt module BZ to execute the prompt strategy corresponding to the test success, with continuous and intermittent buzzing.

[0036] The utility model provides a test device for a brake, comprising a start switch CB, a control switch 2, an action feedback module 3 and a controller 1. The start switch CB is connected to a power supply, and uses its own on or off control to control the controller 1 to be powered on or off. When the controller 1 is powered on, the control switch 2 connected to the controller 1 will also be turned on, and the turned-on control switch 2 connects the connected power supply to the brake SOL to be tested, thereby controlling the start of the brake SOL to be tested. At this time, the action feedback module 3 connected to the brake SOL to be tested will feed back an action signal of the brake SOL to be tested to the controller 1, so that the controller 1 can determine whether the brake SOL to be tested can work normally according to the fedback action signal, and complete the test process of the reliability of the brake SOL to be tested. This test device can simultaneously take into account the safety and reliability tests of brakes and additional brakes of equipment such as escalators, moving walkways and elevators, has a wide range of applications, is small in size, has a low manufacturing cost, is easy to use, and effectively realizes the reliability test process of the brake, ensuring the safety and reliability of the brake SOL to be tested.

[0037] Based on the above embodiments:

[0038] As an optional embodiment, the brake test device further includes a power conversion module, the input end of the power conversion module is connected to the output end of the control switch 2, and the output end is connected to the brake SOL to be tested.

[0039] Considering that different brakes may require different power specifications, a power conversion module may be added to the test device. The output end of the control switch 2 is connected to the brake SOL to be tested through the power conversion module. When the control switch 2 is turned on, the power supply connected to its input end is output to the power conversion module. The power conversion module converts the power supply into a power supply voltage of the specification corresponding to the brake SOL to be tested, and then outputs the converted power supply voltage to the brake SOL to be tested, so that the brake SOL to be tested can be accurately and effectively powered under the control of the on or off of the control switch 2, and can start normally. The specific type and implementation method of the power conversion module are not particularly limited in this application.

[0040] Specifically, by adding a power conversion module, the power supply output by the control switch 2 can be converted into a power supply voltage of the power supply specification required by the brake SOL to be tested, further ensuring that the turned-on control switch 2 and the power supply output by it can effectively start the brake SOL to be tested, so that the entire test device can be suitable for brakes with various power supply specifications, further expanding the scope of application of the entire test device and improving the flexibility of the entire test device.

[0041] As an optional embodiment, the power conversion module is a transformer TR and / or a rectifier module PSC2.

[0042] It is not difficult to understand that the power supply is usually AC (alternating current) 220V, that is, 220V alternating current, so the power conversion module can use a transformer TR to support brakes with power supply voltages of different AC specifications, and can use a rectifier module PSC2 and a combination of the transformer TR and the rectifier module PSC2 to support brakes with different DC specifications. The specific type and implementation method of the transformer TR and the rectifier module PSC2 are not specifically limited in this application. Figure 2 For example, the first test circuit using the rectifier module PSC2 can be used for a brake with a power supply specification of DC (direct current) 220V, the second test circuit using the transformer TR can be used for a brake with a power supply specification of AC 110V, and the third test circuit using the transformer TR and the rectifier module PSC2 can be used for a brake with a power supply specification of DC 110V. Considering that the power supply specifications of the brake are usually AC 220V, DC 220V, AC 110V and DC 110V, it is possible to directly set the following in the test device: Figure 2 The 4 or more test circuits shown can be used to directly connect the brake SOL to be tested with different power specifications to different test circuits.

[0043] Specifically, the transformer TR and / or the rectifier module PSC2 can be used to convert the 220V AC power supply into AC or DC with different power supply voltages, thereby supporting brakes with various power supply specifications. Furthermore, multiple test circuits corresponding to the power supply specifications of common brakes can be set, so that various brakes can directly apply the test device provided by the utility model, which is convenient for the application and promotion of the entire test device.

[0044] As an optional embodiment, the brake testing device further includes a prompt module BZ, the input end of which is connected to the output end of the controller 1 , for executing a corresponding prompt strategy based on the test result output by the controller 1 .

[0045] It is not difficult to understand that after the controller 1 obtains the test result of the brake SOL to be tested according to the action signal, in order to facilitate the test personnel to obtain the test result in time, a prompt module BZ can be added to the test device. The prompt module BZ is connected to the output end of the controller 1. After the controller 1 obtains the test result, it can directly control the prompt module BZ to execute the corresponding prompt strategy according to the test result. The specific type and implementation method of the prompt module BZ are not particularly limited in this application. The prompt function can be realized by using a display light, a buzzer or an acousto-optic display module, etc. The different test results of test failure and test success can be distinguished by different prompt methods of the same prompt module BZ, and two prompt submodules can be set to respectively prompt test failure and test success.

[0046] Specifically, by adding a prompt module BZ connected to the output end of the controller 1, the reminder and display of the test results obtained by the controller 1 can be effectively realized. The prompt module BZ can intuitively display the test results through sound and light, so that the tester can determine the test results in a timely and intuitive manner, saving time and improving the work efficiency of the test process.

[0047] As an optional embodiment, the brake testing device further comprises a switching power supply PSC1 , wherein the input end of the switching power supply PSC1 is connected to the second end of the starting switch CB, and the output end is connected to the power supply end of the controller 1 .

[0048] Considering that the power specification required by the controller 1 may not be directly provided by the power supply, a switching power supply PSC1 connected to the power supply end of the controller 1 may be added. The switching power supply PSC1 plays the role of power conversion. When the starting switch CB is closed, the power supply is output to the input end of the switching power supply PSC1. The switching power supply PSC1 converts the power supply into the power supply voltage required by the controller 1, thereby ensuring that the closing of the starting switch CB can effectively control the controller 1 to be powered, so that the controller 1 starts and begins to work normally. The specific type and implementation method of the switching power supply PSC1 are not particularly limited in this application. Figure 2 As shown, a switching power supply PSC1 is used to convert the AC 220V power supply into a DC 24V power supply voltage, so that the 24V DC power supply voltage is used to drive the controller 1 to work normally.

[0049] Specifically, by adding a switching power supply PSC1, the power supply output by the starting switch CB can be converted into a power supply voltage of the power supply specification required by the controller 1, further ensuring that the turned-on starting switch CB and the power supply output by it can effectively start the controller 1, so that the entire test device can be applicable to controllers 1 with various power supply specifications, further expanding the scope of application of the entire test device and improving the flexibility of the entire test device.

[0050] As an optional embodiment, the control switch 2 is a relay EBR, a first end of the coil of the relay EBR is connected to the output end of the controller 1, and a second end is connected to the power supply end of the controller 1, a first end of the contact of the relay EBR is connected to the power supply, and a second end is connected to the brake SOL to be tested.

[0051] It is not difficult to understand that the control switch 2 can be implemented by using a relay EBR, and the controller 1 can control the closing or closing of the contacts of the relay EBR by controlling the power on and off of the coil of the relay EBR, thereby utilizing the closing or closing process of the contacts to control the power supply process of the brake SOL to be tested. The control range can be further expanded by using the relay EBR, making it convenient to use the same power supply to simultaneously power the controller 1 and the brake SOL to be tested, further saving the cost and volume of the entire device to be tested. The specific type and implementation method of the relay EBR are not specifically limited in this application. Figure 2 As shown, A1 and A2 are the two ends of the coil of the relay EBR, and 13 and 14 are the two ends of the contact of the relay EBR.

[0052] Specifically, the use of relay EBR can effectively realize the function of controlling switch 2. At the same time, relay EBR can expand the control range and further expand the application scope of the entire test device. Relay EBR has a simple structure, small size, and is easy to implement, which is conducive to the simple implementation of the entire test device and facilitates the application and promotion of the test device.

[0053] As an optional embodiment, the action feedback module 3 includes an action feedback plate 31 and an action feedback switch EBS. The action feedback plate 31 is connected to the brake to be tested SOL. When the brake to be tested SOL is actuated, the brake to be tested SOL drives the action feedback plate 31 to actuate, so that the action feedback switch EBS is closed.

[0054] It is not difficult to understand that, through the cooperation of the action feedback plate 31 and the action feedback switch EBS, the action feedback module 3 can effectively feedback and detect the action process of the brake SOL to be tested. When the brake SOL to be tested is actuated, the brake SOL to be tested will apply force to the action feedback plate 31, thereby driving the action feedback plate 31 to move. The action of the action feedback plate 31 will squeeze the action feedback switch EBS, so that the action feedback switch EBS is converted from an initial open state to a closed state, thereby outputting different switch signals to the controller 1 when the brake SOL to be tested is operating normally or cannot operate normally, so that the controller 1 can accurately identify the action process of the brake SOL to be tested. The present application does not make any special restrictions on the specific type and implementation method of the action feedback plate 31. There are many options for the connection method between the action feedback plate 31 and the brake SOL to be tested, and a U-shaped structural member or the like can be used, as long as the action process of the brake SOL to be tested can drive the action of the action feedback plate 31. There are also many options for the connection method between the action feedback plate 31 and the action feedback switch EBS. A mechanical structure can be directly used to realize physical connection to realize the control of the action feedback switch EBS, or an induction switch or the like can be used to realize the control process of the action feedback switch EBS by the action feedback plate 31.

[0055] Specifically, the action feedback module 3 including the action feedback plate 31 and the action feedback switch EBS can convert the action process of the brake SOL to be tested into a switch signal and feed it back to the controller 1. When the brake SOL to be tested can operate normally, the controller 1 receives a closed switch signal. When the brake SOL to be tested cannot operate normally, the controller 1 receives a disconnected switch signal. The signal is simple and clear, easy to process, and has a fast response speed. The controller 1 can quickly and accurately determine the test result of the brake SOL to be tested, which is beneficial to improving the test efficiency of the entire test device.

[0056] As an optional embodiment, the brake testing device also includes a reset device, which is connected to the action feedback plate 31. The reset device is used to reset the action feedback plate 31 to an initial state when the brake SOL to be tested does not apply force to the action feedback plate 31, so as to disconnect the action feedback switch EBS.

[0057] It is not difficult to understand that the reliability test process for the brake SOL to be tested usually requires repeated tests to be implemented. Therefore, after a test process is completed, the controller 1 needs to disconnect the control switch 2, so that the brake SOL to be tested loses power. At this time, the brake SOL to be tested will not continue to act, and the corresponding action feedback plate 31 and action feedback switch EBS also need to be restored to the initial state. Therefore, a reset device can be added to reset the action feedback plate 31 in the state where no force is applied by the brake SOL to be tested to the initial position corresponding to the initial state, and the corresponding action feedback switch EBS will also be restored to the disconnected initial state, so that the test device can continue to use the action feedback module 3 after the initial state is restored to continue the next test process. The specific type and implementation method of the reset device are not particularly limited in this application, and can be implemented by elastic parts and other methods.

[0058] Specifically, by adding a reset device, the action feedback plate 31 and the action feedback switch EBS corresponding to the brake SOL to be tested in the state where no force is applied by the brake SOL to be tested after power failure can be reset to the initial state, thereby facilitating the testing device to continuously and automatically perform repeated reliability testing processes, thereby ensuring the accuracy and reliability of the test results of the brake SOL to be tested.

[0059] As an optional embodiment, the reset device includes an action rod 32, a reset spring 33 and a limit protrusion 34. The action rod 32 is connected to the action feedback plate 31. The limit protrusion 34 is fixed on the action rod 32. One end of the reset spring 33 abuts against the support frame 35, and the other end abuts against the limit protrusion 34.

[0060] It is not difficult to understand that the reset device can realize the reset process through the reset spring 33. At the same time, in order to facilitate the setting of the reset spring 33, an action rod 32 connected to the action feedback plate 31 can be set, and the reset spring 33 is installed on the action rod 32. A limit protrusion 34 is set on the action rod 32. At the same time, the test device adds a support frame 35 with a fixed position, and the reset spring 33 is set between the limit protrusion 34 and the support frame 35. When the action feedback plate 31 moves with the action of the brake SOL to be tested, the action rod 32 is pulled accordingly, and the reset spring 33 is deformed. When the brake SOL to be tested no longer moves, the action feedback plate 31 no longer accepts the force applied by the brake SOL to be tested. At this time, the process of restoring the deformation of the reset spring 33 will drive the action feedback plate 31 to return to the initial position through the action rod 32. The specific types and implementation methods of the action rod 32, the reset spring 33 and the limit protrusion 34 are not particularly limited in this application. The limit protrusion 34 can be used as follows. Figure 3The nut structure shown is realized. Further, in order to facilitate the installation of the support frame 35, a workbench base 36 can also be provided for the entire test device.

[0061] Specifically, the action pull rod 32, the reset spring 33 and the limit protrusion 34 can cooperate with each other to realize the reset process of the action feedback pull plate, and correspondingly also play a role in the reset process of the action feedback switch EBS. The structure of the entire reset device is simple, easy to implement, small in size, and low in cost, which is conducive to the simple implementation of the entire test device.

[0062] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0063] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0064] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brake testing device, characterized in that: include: A start switch, a first end of which is connected to the power supply, and a second end of which is connected to the first input end of the controller, for controlling power on and power off of the controller; A control switch, the input end of which is connected to the power supply, the control end of which is connected to the output end of the controller, and the output end of which is connected to the brake to be tested, and is used to be turned on when the controller is powered on and turned off when the controller loses power; An action feedback module, whose input end is connected to the brake to be tested and whose output end is connected to the second input end of the controller, and is used for feeding back the action signal of the brake to be tested to the controller; The controller is used to obtain a test result of the brake to be tested based on the action signal.

2. The brake testing device according to claim 1, characterized in that: It also includes a power conversion module, the input end of the power conversion module is connected to the output end of the control switch, and the output end is connected to the brake to be tested.

3. The brake testing device according to claim 2, characterized in that: The power conversion module is a transformer and / or a rectifier module.

4. The brake testing device according to claim 1, characterized in that: It also includes a prompt module, the input end of which is connected to the output end of the controller and is used to execute a corresponding prompt strategy based on the test result output by the controller.

5. The brake testing device according to claim 1, characterized in that: It also includes a switching power supply, wherein the input end of the switching power supply is connected to the second end of the starting switch, and the output end is connected to the power supply end of the controller.

6. The brake testing device according to claim 1, characterized in that: The control switch is a relay, a first end of the coil of the relay is connected to the output end of the controller, a second end is connected to the power supply end of the controller, a first end of the contact of the relay is connected to the power supply, and a second end is connected to the brake to be tested.

7. The brake testing device according to any one of claims 1 to 6, characterized in that: The action feedback module includes an action feedback plate and an action feedback switch. The action feedback plate is connected to the brake to be tested. When the brake to be tested is actuated, the brake to be tested drives the action feedback plate to actuate, so that the action feedback switch is closed.

8. The brake testing device according to claim 7, characterized in that: It also includes a reset device, which is connected to the action feedback plate. The reset device is used to reset the action feedback plate to an initial state when the brake to be tested does not apply force to the action feedback plate, so as to disconnect the action feedback switch.

9. The brake testing device according to claim 8, characterized in that: The reset device includes an action rod, a reset spring and a limit protrusion. The action rod is connected to the action feedback plate. The limit protrusion is fixed on the action rod. One end of the reset spring abuts against the support frame, and the other end abuts against the limit protrusion.

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