Dragging torque detection device of vehicle brake disc

Abstract

The utility model discloses a dragging torque detection device of a vehicle brake disc in the technical field of detection equipment, which comprises a mobile platform and a detection mechanism arranged on the mobile platform, and the detection mechanism comprises a motor, a torque sensor and a hub clamp; the other end of the torque sensor is connected with the center of the hub clamp; during detection, the wheel hub clamp is driven by the moving platform to reach a target position and clamp a target wheel hub, after clamping, the wheel hub clamp is driven by the motor to drive the target wheel hub to rotate, and the torque sensor records dragging torque. When the device is applied, the brake disc of the vehicle does not need to be detached, measurement is directly carried out, and the device has an efficient and accurate detection effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field especially relates to a vehicle brake disc's drag torque detection device. BACKGROUND

[0002] With the rise of new energy vehicles, intelligent, endurance, energy consumption ratio etc. are the focus of people when purchasing, and reducing the drag torque of brake disc can reduce the energy consumption ratio and correspondingly increase the endurance. For the technology of automobile brake disc, pursuing to reduce the drag torque of brake disc is an eternal technical difficulty. The drag torque of brake disc is very large due to the incomplete separation of the friction plate and the brake disc, which produces residual stress, that is, the drag torque. If the drag torque is greater than the standard value, even if the brake pedal is loosened, the friction plate always has residual friction with the brake disc. When detecting the drag torque of the brake disc, the brake disc often needs to be disassembled from the vehicle and then detected, which is time-consuming and laborious. SUMMARY

[0003] The utility model discloses a vehicle brake disc's drag torque detection device, which overcomes the shortcomings of the prior art and solves the technical problem of time-consuming and laborious detection of the drag torque of the brake disc.

[0004] To achieve the above-mentioned purpose, the utility model is adopted The technical scheme is as follows:

[0005] The utility model provides a vehicle brake disc's drag torque detection device, including mobile platform and setting in detection mechanism on mobile platform, detection mechanism includes motor, torque sensor and wheel hub fixture, torque sensor one end connects the main shaft of motor, and the other end connects the center of wheel hub fixture, when detecting, wheel hub fixture reaches target position under the drive of mobile platform and clamps target wheel hub, after clamping, wheel hub fixture drives target wheel hub to rotate under the drive of motor, and torque sensor records drag torque.

[0006] Optionally, the mobile platform includes a frame body, a movable caster wheel arranged at the bottom of the frame body, and a lifting mechanism arranged on the frame body, and the detection mechanism is arranged at the lifting end of the lifting mechanism.

[0007] Optionally, the lifting mechanism includes a lead screw lifter, and a handle or a speed reducer motor is arranged on the input shaft of the lead screw lifter.

[0008] Optionally, the lifting mechanism further comprises a first mounting plate and a second mounting plate horizontally arranged on the frame body, the first mounting plate is located above the second mounting plate; the lead screw lifter is fixed on the second mounting plate, the lifting end of the lead screw lifter is connected with a lifting guide rod through a flange, the lifting guide rod passes through a flange linear bearing arranged on the first mounting plate upwards to the bottom of the detection mechanism.

[0009] Optionally, the bottom of the detection mechanism is provided with a flange quick release pipe clamp, the flange quick release pipe clamp comprises an integral flange part and a quick release pipe clamp part, a slot is formed at the connection between the flange part and the quick release pipe clamp part; the flange part is fixed on the bottom of the detection mechanism, and the quick release pipe clamp part is clamped on the top of the lifting guide rod.

[0010] Optionally, the hub clamp comprises a base, guide rail rods symmetrically arranged on the base, connecting plates fixed on the ends of the guide rail rods, and lead screws connected between the connecting plates, clamping parts are also symmetrically arranged on the upper and lower sides of the base, the clamping parts comprise sliding blocks and clamping jaws, the sliding blocks are sleeved on the guide rail rods and the lead screws, and are movably connected with the guide rail rods and threadedly connected with the lead screws, one end of the lead screw is provided with a hand wheel, and the hand wheel drives the lead screw to drive the two sliding blocks to move towards or away from each other when the hand wheel rotates.

[0011] Optionally, the clamping jaw comprises two extension blocks symmetrically arranged on the sliding block, a plurality of groups of mounting holes are arranged on the extension blocks, and claw heads are arranged in the mounting holes.

[0012] Optionally, the detection mechanism further comprises a speed reducer, a shaft coupling and a universal joint, the input end of the speed reducer is connected with the main shaft of the motor, the output end of the speed reducer is connected to one end of the torque sensor through the shaft coupling, and the other end of the torque sensor is connected to the center of the hub clamp through the universal joint.

[0013] Optionally, the detection mechanism further comprises a laser calibration instrument and a calibration rod, the laser calibration instrument is arranged on one side of the hub clamp, is used for zero calibration and rotation detection of a target hub, so that the average drag torque of a circle is calculated; and the calibration rod is arranged at one end of the torque sensor during calibration, and is used for calibrating the torque sensor.

[0014] Optionally, the detection mechanism further comprises a speed reducer, a shaft coupling and a universal joint, the input end of the speed reducer is connected with the main shaft of the motor, the output end of the speed reducer is connected to one end of the torque sensor through the shaft coupling, and the other end of the torque sensor is connected to the center of the hub clamp through the universal joint.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The drag torque detection device of the vehicle brake disc provided by the utility model, when detecting, does not need to disassemble the brake disc of the vehicle, adjusts the spatial position of the detection mechanism through the moving platform, makes it reach the required position, directly locks the wheel hub of the vehicle, directly measures the brake disc through the rotating wheel hub, and is convenient and efficient to use. Meanwhile, the whole device adopts modular design, is complete in function, and is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structural schematic diagram of the drag torque detection device of the vehicle brake disc provided by the embodiment;

[0018] Figure 2 is the structural schematic diagram of the lifting mechanism provided by the embodiment;

[0019] Figure 3 is the structural schematic diagram of the flange quick-release pipe clamp provided by the embodiment;

[0020] Figure 4 is the structural schematic diagram of the wheel hub clamp provided by the embodiment;

[0021] Figure 5 is the structural schematic diagram of the detection mechanism provided by the embodiment;

[0022] In the drawing, the marks are:

[0023] 1, moving platform; 11, frame main body; 12, movable trundle;

[0024] 2, detection mechanism; 21, motor; 22, torque sensor; 23, speed reducer; 24, shaft coupling; 25, universal joint; 26, laser calibrator; 27, calibration rod; 28, power module;

[0025] 3, lifting mechanism; 31, screw lifting machine; 32, handlebar; 33, first mounting plate; 34, second mounting plate; 35, lifting guide rod; 36, flange linear bearing;

[0026] 4, flange quick-release pipe clamp; 41, flange part; 42, quick-release pipe clamp part; 43, slot;

[0027] 5, wheel hub clamp; 51, base; 52, guide rail rod; 53, connecting sheet; 54, screw; 55, sliding block; 56, claw; 561, extension block; 562, mounting hole; 563, claw head; 57, hand wheel;

[0028] 6, line winder;

[0029] 7, computer. DETAILED DESCRIPTION

[0030] The utility model is further described below with reference to the drawings. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0031] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more. In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] Example one:

[0033] The utility model discloses a kind of drag torque detection devices of vehicle brake disc, including mobile platform 1 and the detection mechanism 2 of being set on mobile platform 1, detection mechanism 2 includes motor 21, torque sensor 22 and wheel hub clamp 5;Torque sensor 22 one end is connected with the main shaft of motor 21, the other end is connected with the center of wheel hub clamp 5;When detecting, without disassembling wheel, vehicle is lifted to wheel off ground by lifting machine, wheel hub clamp 5 reaches target position and is clamped to target wheel hub under the driving of mobile platform 1, after clamping, wheel hub clamp 5 is driven target wheel hub to rotate under the driving of motor 21, and torque sensor 22 records drag torque.

[0034] As Figure 1As shown in the figure, the mobile platform 1 comprises a frame body 11, movable casters 12 arranged at the bottom of the frame body 11, and a lifting mechanism 3 arranged on the frame body 11, and the detection mechanism 2 is arranged at the lifting end of the lifting mechanism 3. The movable casters 12 can freely move and rotate the frame body 11 on the ground, and the detection mechanism 2 can freely move in the vertical height through the lifting mechanism 3. The movable casters 12 and the lifting mechanism 3 work together to flexibly adjust the spatial position of the detection mechanism 2.

[0035] As shown in the figure, Figure 2 The lifting mechanism 3 comprises a lead screw lifter 31, and a handle 32 or a speed reducer motor 21 is arranged on the input shaft of the lead screw lifter 31. In this embodiment, the handle 32 is selected to operate the lead screw lifter 31 in order to reduce the cost.

[0036] The lifting mechanism 3 further comprises a first mounting plate 33 and a second mounting plate 34 arranged horizontally on the frame body 11, and the first mounting plate 33 is located above the second mounting plate 34. The lead screw lifter 31 is fixed on the second mounting plate 34, and the lifting end of the lead screw lifter 31 is connected with a lifting guide rod 35 through a flange, and the lifting guide rod 35 passes through a flange linear bearing 36 arranged on the first mounting plate 33 to the bottom of the detection mechanism 2. The lifting power output by the lead screw lifter 31 is transmitted and guided through the flange linear bearing 36 and the lifting guide rod 35, so that it accurately acts on the detection mechanism 2.

[0037] As shown in the figure, Figure 3 The bottom of the detection mechanism 2 is provided with a flange quick release pipe clamp 4, which comprises a flange part 41 and a quick release pipe clamp part 42 which are integrally formed, and a slot 43 is arranged at the connection between the flange part 41 and the quick release pipe clamp part 42. The flange part 41 is fixed to the bottom of the detection mechanism 2, and the quick release pipe clamp part 42 is clamped to the top of the lifting guide rod 35. The slot 43 ensures that the flange part 41 and the quick release pipe clamp part 42 can be integrally formed and connected firmly, and also ensures that the work of the quick release pipe clamp part 42 is not affected by the flange part 41. Through the arrangement of the flange quick release pipe clamp 4, the detection mechanism 2 and the lifting guide rod 35 can be flexibly and conveniently disassembled and assembled, which is convenient for the maintenance of the detection mechanism 2.

[0038] As shown in the figure, Figure 4As shown, the hub clamp 5 includes a base 51, two guide rails 52 symmetrically arranged on the base 51, a connecting plate 53 fixed to the end of the guide rail 52, and a lead screw 54 connected between the connecting plates 53. The base 51 also has clamping parts symmetrically arranged on the upper and lower sides, which include sliding blocks 55 and clamping jaws 56. The sliding blocks 55 are sleeved on the guide rails 52 and the lead screw 54, and are movably connected with the guide rails 52 and threadedly connected with the lead screw 54. One end of the lead screw 54 is provided with a hand wheel 57. When the hand wheel 57 rotates, it drives the lead screw 54 to drive the two sliding blocks 55 to move towards or away from each other. When it is necessary to clamp the target hub, the outer circular edge of the target hub is clamped by the clamping jaws 56, and then the two sliding blocks 55 are controlled to move towards each other by the hand wheel 57 to clamp the target hub. Conversely, the target hub is released.

[0039] The clamping jaw 56 includes two extension blocks 561 symmetrically arranged on the sliding block 55. The extension blocks 561 are provided with a plurality of mounting holes 562, and the mounting holes 562 are provided with claw heads 563. The two extension blocks 561 are usually in a spread shape, so that the claw heads 563 can be opened at a larger angle, and the clamping effect on the target hub is better. At the same time, by selecting different mounting holes 562, different target hubs can be adapted, and the adaptability is better.

[0040] As shown in the figure, Figure 5 The detection mechanism 2 also includes a speed reducer 23, a shaft coupling 24, and a universal joint 25. The input end of the speed reducer 23 is connected to the main shaft of the motor 21, the output end of the speed reducer 23 is connected to one end of the torque sensor 22 through the shaft coupling 24, and the other end of the torque sensor 22 is connected to the center of the hub clamp 5 through the universal joint 25. The shaft coupling 24 realizes power transmission, ensuring that the power transmission between the main shaft of the motor 21 and the load is more stable and efficient. The universal joint 25 can compensate for the angle, avoiding the influence of angle misalignment on the detection result.

[0041] The detection mechanism 2 also includes a laser calibrator 26 and a calibration rod 27. The laser calibrator 26 is arranged on one side of the hub clamp 5, which is used for zero calibration and circle detection of the target hub, so as to calculate the average drag torque of the circle. The calibration rod 27 is arranged at one end of the torque sensor 22 during calibration, which is used for calibrating the torque sensor 22.

[0042] The calibration of the torque sensor 22 is carried out by hanging a fixed value weight at one end of the calibration rod 27, and comparing the calculated torque with the output of the torque sensor 22 according to the weight x the distance of the force arm, so as to calibrate the torque sensor 22. The calibration rod 27 provided in the embodiment can improve the accuracy of the detection result of the torque sensor 22.

[0043] The drag torque detection device further comprises a winding device 6 and a computer 7 arranged on the moving platform 1, the winding device 6 is wound with a power line, one end of the power line is connected with a commercial power, the other end is connected with the computer 7 and a power module 28 arranged in the detection mechanism 2, the computer 7 and the power module 28 are connected with the motor 21 and the torque sensor 22 respectively, for monitoring and power supply. The winding device 6 can ensure that the moving platform 1 can still maintain power supply during the moving process, and meanwhile avoid other influences caused by cable disorder. The commercial power is converted into low-voltage direct current by the power module 28, and then the low-voltage direct current can be used to supply power to the motor 21 and the torque sensor 22, the computer 7 is arranged, the rotating speed of the motor 21 can be controlled, and meanwhile the acquisition parameters of the torque sensor 22 can be obtained, the acquisition parameters can be sorted, edited, stored and displayed.

[0044] The preferred embodiments of the present application are described above, it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A device for detecting the drag torque of a vehicle brake disc, characterized in that, The device includes a mobile platform and a detection mechanism mounted on the mobile platform. The detection mechanism includes a motor, a torque sensor, and a wheel hub clamp. One end of the torque sensor is connected to the main shaft of the motor, and the other end is connected to the center of the wheel hub clamp. During detection, the wheel hub clamp reaches the target position under the drive of the mobile platform and clamps the target wheel hub. After clamping, the wheel hub clamp drives the target wheel hub to rotate under the drive of the motor, and the torque sensor records the drag torque.

2. The drag torque detection device for vehicle brake discs according to claim 1, characterized in that, The mobile platform includes a frame body, movable casters located at the bottom of the frame body, and a lifting mechanism located on the frame body. The detection mechanism is located at the lifting end of the lifting mechanism.

3. The drag torque detection device for vehicle brake discs according to claim 2, characterized in that, The lifting mechanism includes a screw jack, and the input shaft of the screw jack is equipped with a throttle or a geared motor.

4. The drag torque detection device for vehicle brake discs according to claim 3, characterized in that, The lifting mechanism further includes a first mounting plate and a second mounting plate horizontally disposed on the main frame body, with the first mounting plate located above the second mounting plate; the screw jack is fixed on the second mounting plate, and the lifting end of the screw jack is connected to a lifting guide rod via a flange, with the lifting guide rod passing upward through a flanged linear bearing disposed on the first mounting plate to the bottom of the detection mechanism.

5. The drag torque detection device for vehicle brake discs according to claim 4, characterized in that, The bottom of the testing mechanism is provided with a flanged quick-release pipe clamp, which includes an integrally formed flange part and a quick-release pipe clamp part. A groove is opened at the connection between the flange part and the quick-release pipe clamp part. The flange part is fixed to the bottom of the testing mechanism, and the quick-release pipe clamp part is clamped to the top of the lifting guide rod.

6. The drag torque detection device for vehicle brake discs according to claim 1, characterized in that, The hub clamp includes a base, guide rails symmetrically arranged on both sides of the base, connecting pieces fixed to the ends of the guide rails, and a lead screw connecting the connecting pieces. The base also has clamping parts symmetrically arranged on its upper and lower sides. Each clamping part includes a slider and a claw. The slider is sleeved on the guide rails and the lead screw and is movably connected to the guide rails and threadedly connected to the lead screw. A handwheel is provided at one end of the lead screw. When the handwheel is rotated, it drives the lead screw to drive the two sliders to move towards or away from each other.

7. The drag torque detection device for vehicle brake discs according to claim 6, characterized in that, The claw includes two extension blocks symmetrically arranged on both sides of the slider. The extension blocks are provided with multiple sets of mounting holes, and claw heads are provided in the mounting holes.

8. The drag torque detection device for vehicle brake discs according to claim 1, characterized in that, The detection mechanism also includes a reducer, a coupling, and a universal joint. The input end of the reducer is connected to the main shaft of the motor, the output end of the reducer is connected to one end of the torque sensor via the coupling, and the other end of the torque sensor is connected to the center of the wheel hub clamp via the universal joint.

9. The drag torque detection device for vehicle brake discs according to claim 1, characterized in that, The detection mechanism also includes a laser calibrator and a calibration rod. The laser calibrator is set towards the side of the wheel hub fixture and is used for zero-position calibration and rotation detection of the target wheel hub, thereby calculating the average drag torque per rotation. The calibration rod is set at one end of the torque sensor during calibration and is used to calibrate the torque sensor.

10. The drag torque detection device for vehicle brake discs according to claim 1, characterized in that, It also includes a cable reel and a computer mounted on the mobile platform. The cable reel has a power cord wound around it. One end of the power cord is connected to the mains power, and the other end is connected to the power module built into the computer and the detection mechanism. The computer and the power module are respectively connected to the motor and the torque sensor for monitoring and power supply.

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