Brake caliper dragging test system

Abstract

The utility model relates to the technical field of caliper testing, in particular to a dragging test system for brake calipers. Comprises: a motor controllably outputting a rotational drive; the transmission device is connected with an output shaft of the motor, and a torque sensor is arranged on the transmission device; the brake disc is connected with the output side of the transmission device and can be driven to rotate based on rotation of an output shaft of the motor; the test caliper is arranged on one side of the brake disc, and a brake claw of the test caliper is detachably connected with the brake disc; and the data acquisition control device is connected with a motor controller used for driving the motor, and the data acquisition control device is also connected with the torque sensor to receive the torque data. According to the utility model, when the test caliper is separated from the brake disc, the dragging torque applied to the brake disc acts on the transmission device and is captured by the torque sensor, so that the dragging test result of the brake caliper is accurately reflected through the numerical value of the torque sensor, the overall structure is simple, the test precision is high, and the response speed is fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to caliper test technical field, concretely relates to a kind of brake caliper drag test system. BACKGROUND

[0002] Current new energy vehicle market competition is fierce, and the range anxiety is still the main problem of new energy vehicles;Reducing energy consumption is the main way to improve the problem;Among them, the drag torque generated by the brake is one of the reasons for the increase of vehicle energy consumption.

[0003] When EMB caliper brake releases, the residual brake disc rotation resistance torque is defined as the drag torque of EMB caliper. The existing EMB caliper release drag torque test has many deficiencies, and the current test is limited by the hardware precision and software of the equipment, and it is difficult to accurately capture the small drag torque change, resulting in large measurement deviation and difficult to obtain accurate data. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of brake caliper drag test system, to solve the above technical problems;

[0005] The technical problem solved by the utility model can be realized by using the following technical solutions:

[0006] A kind of brake caliper efficiency test equipment, comprising,

[0007] Motor, controllably output rotation drive;

[0008] Transmission device, connecting the output shaft of the motor, the transmission device includes coupling tool based on the rotation drive of the motor can be moved in a straight line direction, the transmission device is equipped with torque sensor;

[0009] Test caliper, in the straight line direction of the transmission device, the inner side of the test caliper is equipped with force sensor;

[0010] Data acquisition control device, connecting the motor controller for driving the motor the data acquisition control device is also connected the torque sensor and the force sensor, obtains torque data and compression force data for calculating the mechanical efficiency of the test caliper.

[0011] Preferably, the transmission device includes a shaft coupling, the output shaft of the motor rotates and moves through the shaft coupling to the coupling tool, and the torque sensor is arranged on the shaft coupling.

[0012] Preferably, the transmission device further includes a ball screw structure arranged in the coupling tool, the motor is connected with the ball screw structure through the shaft coupling, and the ball screw structure comprises,

[0013] A screw rod and a nut movable along the axial direction of the screw rod, the screw rod and the interior of the nut are provided with mutually adapted helical grooves, and the nut is fixedly connected with the coupling tool;

[0014] Rolling balls filled between the helical grooves of the screw rod and the nut.

[0015] Preferably, a work computer provided in the control cabinet is connected with the data acquisition control device, and the work computer is also connected with an interactive device for obtaining external instructions.

[0016] Preferably, a program-controlled direct-current power supply is connected with the data acquisition control device.

[0017] Preferably, a program-controlled direct-current power supply is connected with the data acquisition control device.

[0018] A current sensor is connected with the program-controlled direct-current power supply to acquire the output current of the program-controlled direct-current power supply.

[0019] Preferably, a program-controlled direct-current power supply is connected with the data acquisition control device.

[0020] Preferably, an uninterruptible power supply is connected with the work computer.

[0021] A CAN bus device is used to connect the electronic mechanical brake controller in the equipment cabinet with the work computer.

[0022] Preferably, the control cabinet is a rack structure formed by a metal frame, the control cabinet is provided with a control panel with multiple groups of indicator lights, and the control cabinet is provided with a work computer support for mounting the work computer and a data acquisition control device support for mounting the data acquisition control device.

[0023] Preferably, the force sensor is a strain type force sensor with a full-scale range exceeding 40kN.

[0024] Preferably, a bearing support and a jaw body support are further included, the motor is arranged on the bearing support, and the test caliper is arranged on the jaw body support.

[0025] Preferably, the motor is a servo motor with an encoder, and the output shaft of the motor is connected with a planetary reducer.

[0026] The utility model discloses the beneficial effects: due to adopting above technical scheme, the utility model discloses through transmission to drive the rotation of motor to the brake disc, when test caliper is separated from the brake disc, the drag torque of brake disc is acted on transmission and is caught by torque sensor, thereby the value of torque sensor accurately reflects the drag test result of brake caliper, and the overall structure is simple, test precision is high, and response speed is fast. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure schematic view of the brake caliper drag test system in the embodiment of the utility model;

[0028] Figure 2 It is a hardware system architecture view of the brake caliper drag test system in the embodiment of the utility model;

[0029] Figure 3 It is a test flow chart of the brake caliper drag test system in the embodiment of the utility model;

[0030] Figure 4 It is a transmission structure schematic view of the brake caliper drag test system in the embodiment of the utility model. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0033] The utility model will be further described below in conjunction with the drawings and specific embodiments, but not as the limitation of the utility model.

[0034] A brake caliper drag test system, as shown in Figure 1 , Figure 2 It comprises,

[0035] Motor 1, controllably outputting rotary drive;

[0036] Transmission device, connecting the output shaft of motor 1, and being provided with torque sensor 51 on the transmission device;

[0037] Brake disc 74, connecting the output side of transmission device, and being rotatably driven based on the rotation of the output shaft of motor 1;

[0038] Test caliper 4, being arranged on one side of the brake disc, and the brake claw of test caliper 4 being detachably connected with brake disc 74;

[0039] Data acquisition control device 62, connecting motor controller 63 for driving motor 1, and data acquisition control device 62 further connecting torque sensor 51 to receive torque data.

[0040] Specifically, the utility model discloses a motor 1 is used as the power source of caliper drag test, and the rotary motion of motor 1 is driven to brake disc 74 through transmission device, when testing caliper 4 is separated from brake disc 74, the drag torque of brake disc 74 is acted on transmission device and is captured by torque sensor 51, thereby the drag test result of brake caliper is reacted through the numerical value of torque sensor 51, the utility model discloses whole simple structure, high testing accuracy, fast response speed.

[0041] In a preferred embodiment, the transmission device includes a coupling 2, and the rotary motion of the output shaft of the motor 1 is transmitted to the brake disc 74 through the coupling 2.

[0042] Specifically, the utility model discloses a motor 1 is used as the power source of caliper drag test, and the rotary motion of motor 1 is driven to brake disc 74 through transmission device, when testing caliper 4 is separated from brake disc 74, the drag torque of brake disc 74 is acted on transmission device and is captured by torque sensor 51, thereby the drag test result of brake caliper is reacted through the numerical value of torque sensor 51, the utility model discloses whole simple structure, high testing accuracy, fast response speed.

[0043] In a preferred embodiment, the torque sensor 51 is arranged on the coupling 2.

[0044] In a preferred embodiment, the utility model further includes an industrial computer 61 arranged in the control cabinet 6, connected with the data acquisition control device 62, and the industrial computer 61 is further connected with an interactive device 65 for obtaining external instructions.

[0045] In a preferred embodiment, the utility model further includes,

[0046] a program-controlled direct-current power supply 67 connected with the data acquisition control device 62;

[0047] a current sensor 64 connected with the program-controlled direct-current power supply 67 and used for collecting the output current of the program-controlled direct-current power supply 67.

[0048] In a preferred embodiment, the utility model further includes an electronic mechanical brake controller 81 connected with the testing caliper 4 and capable of controllably outputting a separation signal for driving the testing caliper 4 to separate from the brake disc 74.

[0049] In a preferred embodiment, the control cabinet 6 is a rack structure formed by a metal frame, the control cabinet 6 is provided with a control panel with multiple groups of indicator lights, and the control cabinet 6 is provided with an industrial computer support for mounting the industrial computer 61 and a data acquisition control device support for mounting the data acquisition control device 62.

[0050] Specifically, the control cabinet 6 includes a cabinet body, various supports and bridges arranged in the cabinet body, and the cabinet body is a multi-U standard cabinet formed by a metal frame and has a height of 1.5 meters or above, the panel of the control cabinet 6 includes multiple groups of switches and indicator lights, and the inside includes the industrial computer support, the data acquisition control device support, an air switch, an intermediate relay and the like.

[0051] In a preferred embodiment, the utility model further includes,

[0052] Uninterruptible power supply 68, connecting industrial computer 61;

[0053] CAN bus device 66, industrial computer 61 connects electronic mechanical brake controller 81 in equipment cabinet 8 through CAN bus device 66.

[0054] In a preferred embodiment, bearing support 71 and body support 72 are further included, motor 1 is arranged on bearing support 71, and test caliper 4 is arranged on body support 72 through mounting clamp 73.

[0055] Specifically, bearing support 71 and body support 72 are arranged to support motor 1 and test caliper 4 respectively, test caliper 4 is arranged on body support 72 through mounting clamp 73, which can ensure stable installation and accurate positional relationship of each component during the test process, and reduce measurement errors caused by component shaking or displacement.

[0056] In a preferred embodiment, motor 1 is a servo motor with an encoder.

[0057] Specifically, the utility model adopts servo motor 1 with an encoder, which can accurately control the output rotary drive, and torque sensor 51 arranged on coupling 2 can monitor the torque change in the transmission process in real time, so as to feedback the drag torque applied to brake disc 74 when test caliper 4 is separated from brake disc 74.

[0058] In a specific embodiment, as shown in the figure, Figure 2 The system hardware structure of the utility model adopts industrial computer 61 as a central control unit, motor 1 and motor controller 63 provide rotary motion; data acquisition control device 62 provides program control and signal acquisition,

[0059] Among them, industrial computer 61 as the core control unit, connected with interactive device 65, interactive device 65 includes display screen, keyboard and mouse etc., convenient for operating personnel to carry out man-machine interaction, input instruction and view system state information etc.

[0060] Uninterruptible power supply 68 (UPS) provides uninterrupted power supply for industrial computer 61 and other equipment, data acquisition control device 62 is bidirectionally connected with industrial computer 61, on the one hand, receives the instruction of industrial computer 61, on the other hand, acquires various data in the system, and feeds back to industrial computer 61 for processing.

[0061] Electronic mechanical brake controller 81 (EMB) in equipment cabinet 8 is connected with industrial computer 61 through CAN bus device 66, program-controlled direct-current power supply 67 provides stable direct-current power supply for data acquisition control device 62, and is connected with current sensor 64, and current sensor 64 detects the output current of program-controlled direct-current power supply 67.

[0062] The system software includes configuration software, real-time acquisition and analysis software, data analysis and test report generation software, etc. Figure 3

[0063] The configuration software includes motor control parameter configuration, standard test process configuration, analog parameter configuration, project information and storage configuration, etc.

[0064] In a specific embodiment, the caliper drag test device is shown in detail. Figure 4 The servo motor 1 is used as a power source, and the motor 1 is connected with the brake disc 74 through the coupling 2, which can buffer the vibration impact of the output shaft of the motor 1. The torque sensor 51 is also connected on the coupling 2, which is used to measure the torque data in the transmission process and capture the drag torque applied to the brake disc 74 when the test caliper 4 is separated from the brake disc 74. The bearing support 71 is used to provide support. The mounting clamp 73 is used to install the brake caliper 4, and the brake disc 74 is at the end of the entire test system and is used as a direct bearing component for testing the brake caliper 4. During the braking process, the brake caliper 4 is separated from the brake disc 74 according to the separation signal output by the electronic mechanical brake controller, and the torque sensor 51 captures the drag torque applied to the brake disc 74 when the test caliper 4 is separated from the brake disc 74, so as to realize the test of the brake drag parameters.

[0065] The above only describes the preferred embodiments of the present application, and does not limit the embodiments and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made according to the content of the present application should be included in the protection scope of the present application.​

Claims

1. A brake caliper drag test system, characterized by, The utility model relates to a kind of test device of electronic mechanical brake, including, Motor (1), controllably output rotary drive; Transmission device, the output shaft of the motor (1) is connected, torque sensor (51) is equipped on the transmission device; Brake disc (74), the output side of the transmission device is connected, and based on the output shaft rotation of the motor (1) can be driven to rotate; Test caliper (4), it is equipped in one side of the brake disc, and the brake claw of the test caliper (4) is releasably connected with the brake disc (74); Data acquisition control device (62), motor controller (63) for driving the motor (1) is connected, and the data acquisition control device (62) is also connected torque sensor (51) receives torque data.

2. The brake caliper drag testing system of claim 1, wherein, The transmission device includes shaft coupling (2), and the output shaft rotation movement of the motor (1) is transmitted to the brake disc (74) by the shaft coupling (2).

3. The brake caliper drag testing system of claim 2, wherein, Torque sensor (51) is equipped on the shaft coupling (2).

4. The brake caliper drag testing system of claim 3, wherein, It further includes industrial computer (61) in control cabinet (6), and it is connected with the data acquisition control device (62), and the industrial computer (61) is also connected with interactive device (65) for obtaining external instruction.

5. The brake caliper drag testing system of claim 4, wherein, Further including, Program-controlled direct current power supply (67), it is connected with the data acquisition control device (62); Current sensor (64), it is connected with the program-controlled direct current power supply (67), and the output current of the program-controlled direct current power supply (67) is collected.

6. The brake caliper drag testing system of claim 4, wherein, Further including electronic mechanical brake controller (81), it is connected with the test caliper (4), and controllably output is used to drive the test caliper (4) and is released from the brake disc (74) release signal.

7. The brake caliper drag testing system of claim 4, wherein, The control cabinet (6) is the frame structure of metal frame, and control panel with multiple groups of indicating lamps is equipped on the control cabinet (6), and industrial computer support for installing the industrial computer (61) and data acquisition control device support for installing the data acquisition control device (62) are equipped in the control cabinet (6).

8. The brake caliper drag testing system of claim 6, wherein, Further including, Uninterruptible power supply (68), it is connected with the industrial computer (61); CAN bus device (66), the industrial computer (61) is connected with the electronic mechanical brake controller (81) in equipment cabinet (8) through the CAN bus device (66).

9. The brake caliper drag testing system of claim 1, wherein, Further including bearing support (71) and caliper body support (72), the motor (1) is equipped on the bearing support (71), and the test caliper (4) is equipped on the caliper body support (72) by mounting clamp (73).

10. The brake caliper drag testing system of claim 1, wherein, The motor (1) is servo motor with encoder.

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