Static calibration device of portable brake performance tester

Abstract

The utility model discloses a static calibration device of a portable brake performance tester, which comprises a device outer case and a rotary table, the rotary table is arranged on one side of the device outer case, and a rotation control assembly, an angle detection assembly, a coupler, a driving module assembly and a power supply module assembly are arranged in the device outer case; through cooperation of the rotation control assembly and the angle detection assembly, the rotation table rotates to a required angle value, and a sensor of a tested portable brake performance tester fixed on the rotation table is driven to rotate by different angles. Meanwhile, calibration is carried out by rotating different angles, the acceleration change condition of the vehicle in the braking process can be simulated, and accurate data of the tested sensor is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of measurement and detection device, especially, relate to a portable brake performance tester's static calibration device. BACKGROUND

[0002] Among numerous vehicle safety detection, motor vehicle brake performance detection is one of important contents of vehicle safety detection, and is reliable guarantee of vehicle driving safety, in order to vehicle safety detection, some instrument manufacturers produce various portable brake performance testers, as motor vehicle brake performance detection safety technical inspection equipment, and widely used in automobile detection mechanism.

[0003] The sensor in portable brake performance tester is mainly responsible for measuring the deceleration value of vehicle braking process, these sensors usually adopt high-precision acceleration sensor, can accurately capture the deceleration change of vehicle in braking process, although its sensor has high precision and impact resistance in design, but in actual use, sensor performance may decline, may lead to certain deviation of measurement result, especially in the case of high precision requirement, in addition, the linearity, response speed and impact resistance of sensor may be influenced by environmental factors, thereby influence the accuracy of measurement.

[0004] Therefore, it is necessary to calibrate portable brake performance tester to ensure the accuracy and reliability of its own measurement value. INVENTION CONTENTS

[0005] The utility model solves the technical problem in the prior art, provides a portable brake performance tester's static calibration device, and rotation control assembly and angle detection assembly are cooperated to realize that the rotating platform is rotated to the required angle value, and the sensor of the tested portable brake performance tester fixed on the rotating platform is rotated by different angles.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0007] A portable brake performance tester's static calibration device, including device outer machine case and rotating platform, the rotating platform is located at one side of device outer machine case, the inside of device outer machine case is provided with rotation control assembly, angle detection assembly, shaft coupling, drive module assembly and power module assembly, the angle detection assembly is located at one side of rotation control assembly and is drivenly connected with rotation control assembly through shaft coupling, one end of rotation control assembly passes through device outer machine case and is connected with rotating platform, rotation control assembly and angle detection assembly are electrically connected with drive module assembly and power module assembly respectively.

[0008] Further, the rotation control assembly comprises a first support frame, a speed reducer and a driving motor, the speed reducer is fixed to the right top of the first support frame, the left driving end of the speed reducer is in transmission connection with the angle detection assembly through a shaft coupling, the right driving end of the speed reducer extends out of the device outer case and is connected with the rotating table, the driving motor is arranged below the speed reducer and is in transmission connection with the speed reducer, and the speed reducer and the driving motor are electrically connected with the driving module assembly and the power module assembly respectively.

[0009] Further, the angle detection assembly comprises a second support frame and an angle encoder, the second support frame is arranged on the left side of the first support frame in a spaced mode, and the angle encoder is fixed to the left top of the second support frame; the rotating shaft of the angle encoder is in transmission connection with the speed reducer through a shaft coupling; and the angle encoder is electrically connected with the driving module assembly and the power module assembly.

[0010] Further, the bottom of the rotating table is provided with a fixing seat, the right driving end of the speed reducer is inserted into the fixing seat, and the top of the rotating table is provided with a clamping piece.

[0011] Further, the clamping piece comprises a first screw rod, a second screw rod, a first adjusting nut, a second adjusting nut and a clamping plate, the first screw rod and the second screw rod are arranged on the two sides of the top of the rotating table in a spaced mode, the two ends of the clamping plate are sleeved on the first screw rod and the second screw rod respectively, and the first adjusting nut and the second adjusting nut are screwed on the first screw rod and the second screw rod respectively.

[0012] Further, the front side of the device outer case is provided with a display screen, the back side top of the device outer case is provided with a USB interface, a communication interface and a power switch in a spaced mode, the back side bottom of the device outer case is provided with two rows of heat dissipation holes, and the display screen, the USB interface, the communication interface and the power switch are electrically connected with the driving module assembly and the power module assembly respectively.

[0013] Further, the bottom of the device outer case is provided with supporting feet at four corners respectively.

[0014] The beneficial effects of the utility model lie in that:

[0015] (1) the utility model discloses a display screen input different test angle value, and the rotation control assembly and angle detection assembly cooperate to realize that the rotating table rotates to the angle value required, so as to drive the sensor to be tested fixed on the rotating table to rotate different angles, and the rotation angle data of the rotating table is outputted to the outside through the communication interface; simultaneously, through the calibration of different angles, the acceleration change condition of the vehicle in the braking process can be simulated, and the accurate data of the sensor to be tested are ensured.

[0016] (2) The rotating table is provided with a clamping piece on the top, the sensor of the tested portable brake performance tester can be fixed on the rotating table by the clamping piece, and the tested sensor is prevented from sliding when the rotating table rotates; or the rotating table can be made of ferromagnetic material, so that the tested sensor with a magnetic attraction structure is conveniently adsorbed and fixed on the rotating table, and then the rotating table can directly drive the tested sensor to rotate at different angles when rotating. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall structure diagram of the utility model Figure 1 ;

[0018] Figure 2 It is an overall structure diagram of the utility model Figure 2 ;

[0019] Figure 3 It is a structure front view of the device outer case;

[0020] Figure 4 It is a local structure diagram of the device outer case.

[0021] In the figure, 1 is a device outer case, 11 is a display screen, 12 is a USB interface, 13 is a communication interface, 14 is a power switch, 15 is a heat dissipation hole, 16 is a supporting leg, 2 is a rotating table, 21 is a fixed seat, 22 is a first screw rod, 23 is a second screw rod, 24 is a first adjusting nut, 25 is a second adjusting nut, 26 is a clamping plate, 3 is a rotating control assembly, 31 is a first supporting frame, 32 is a speed reducer, 33 is a driving motor, 4 is an angle detection assembly, 41 is a second supporting frame, 42 is an angle encoder, 5 is a shaft coupling, 6 is a driving module assembly, 7 is a power module assembly. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] As shown in the accompanying Figures 1-4As shown in the static calibration device of the portable brake performance tester in the embodiment of the utility model, including device outer case 1 and rotating table 2, rotating table 2 is located at one side of device outer case 1, the inside of device outer case 1 is provided with rotation control assembly 3, angle detection assembly 4, shaft coupling 5, drive module assembly 6 and power module assembly 7, angle detection assembly 4 is located at one side of rotation control assembly 3 and is drivenly connected with it through shaft coupling 5, one end of rotation control assembly 3 passes out device outer case 1 and is connected with rotating table 2, rotation control assembly 3 and angle detection assembly 4 are electrically connected with drive module assembly 6, power module assembly 7 respectively;The drive of whole device and function realization are realized through drive module assembly 6, and the whole device is powered through power module assembly 7.

[0024] Specifically, in the calibration process, the static calibration device rotates the rotating table 2 to the required angle value through the cooperation of the rotation control assembly 3 and the angle detection assembly 4, so as to rotate the sensor of the tested portable brake performance tester by different angles, and the rotation angle data of the rotating table 2 is outputted externally through the communication interface 13. At the same time, by rotating and calibrating by different angles, the acceleration change condition of the vehicle in the braking process can be simulated to ensure the accurate data of the tested sensor.

[0025] The rotation control assembly 3 includes a first support frame 31, a speed reducer 32 and a drive motor 33. The speed reducer 32 is fixed to the right side top of the first support frame 31. The left side drive end of the speed reducer 32 is drivingly connected with the angle detection assembly 4 through the shaft coupling 5, and the right side drive end thereof extends out of the device outer case 1 and is connected with the rotating table 2. The drive motor 33 is arranged below the speed reducer 32 and is drivingly connected therewith. The speed reducer 32 and the drive motor 33 are electrically connected with the drive module assembly 6 and the power module assembly 7 respectively.

[0026] The speed reducer 32 adopts a model ZT60-L1-5-P2, which can be used for adjusting the driving direction of the drive motor 33 and achieving a certain speed reduction ratio. The drive motor 33 adopts a model 57HS10N, which can be used for driving the rotation of the rotating table 2.

[0027] The angle detection assembly 4 includes a second support frame 41 and an angle encoder 42. The second support frame 41 is arranged at intervals on the left side of the first support frame 31. The angle encoder 42 is fixed to the left side top of the second support frame 41. The rotating shaft of the angle encoder 42 is drivingly connected with the speed reducer 32 through the shaft coupling 5. The angle encoder 42 is electrically connected with the drive module assembly 6 and the power module assembly 7 respectively. The rotation angle value of the rotating table 2 is accurately measured by the angle encoder 42, and the accurate input angle value is realized by cooperating with the rotation control assembly 3 to realize control adjustment.

[0028] The bottom of the rotating table 2 is provided with a fixing seat 21, the right side driving end of the speed reducer 32 is inserted into the fixing seat 21, and the top of the rotating table 2 is provided with a clamping piece.

[0029] Specifically, the clamping piece comprises a first screw rod 22, a second screw rod 23, a first adjusting nut 24, a second adjusting nut 25 and a clamping plate 26, the first screw rod 22 and the second screw rod 23 are arranged on the two sides of the top of the rotating table 2, the two ends of the clamping plate 26 are sleeved on the first screw rod 22 and the second screw rod 23 respectively, and the first adjusting nut 24 and the second adjusting nut 25 are screwed on the first screw rod 22 and the second screw rod 23 respectively; the first adjusting nut 24 and the second adjusting nut 25 can adjust the distance between the clamping plate 26 and the rotating table 2 in height, so that the clamping plate 26 and the table top of the rotating table 2 are matched to press the tested sensor of different heights placed on the rotating table 2, and the tested sensor is prevented from sliding when the rotating table 2 rotates.

[0030] In the embodiment of the utility model, the rotating table 2 can adopt ferromagnetic material, so that the tested sensor with a magnetic attraction structure itself can be adsorbed and fixed on the rotating table 2, and the rotating table 2 can directly drive the tested sensor to rotate when rotating.

[0031] Reference Figures 1-2 The front side of the device outer case 1 is provided with a display screen 11, the top of the back side is provided with a USB interface 12, a communication interface 13 and a power switch 14 at intervals, the back side of the device outer case 1 is provided with two rows of heat dissipation holes 15 at the bottom, heat in the device outer case 1 can be led out through the heat dissipation holes 15, and the display screen 11, the USB interface 12, the communication interface 13 and the power switch 14 are electrically connected with the driving module assembly 6 and the power module assembly 7 respectively.

[0032] The display screen 11 can display the current angle value of the static calibration device and set related parameters of the rotating control assembly 3 in the device outer case 1, the USB interface 12 can be used for upgrading operation of the static calibration device, the communication interface 13 can be used for communication of the static calibration device, can output the angle value of the rotating table 2, system time of the static calibration device and other data in real time, and data is given to PC software of the upper computer through a serial communication mode, and is used for calibration record saving, and the power switch 14 can be used for power supply and power-off of the static calibration device.

[0033] The bottom of the device outer case 1 is provided with supporting legs 16 at four corners, and the static calibration device is supported through the supporting legs 16.

[0034] The utility model has made a detailed description, the above-mentioned, only for the preferred embodiment of the utility model, when cannot limit the utility model implementation range, namely all equal changes and modification that make in the application scope, should still belong to the utility model cover range.

Claims

1. A static calibration device for a portable braking performance tester, characterized in that: The utility model provides a kind of rotary device, including device outer case and rotating table, rotating table is located in the one side of device outer case, the inside of device outer case is provided with rotation control component, angle detection component, coupling, drive module component and power module component, angle detection component is located in the one side of rotation control component and is drivenly connected with it by coupling, the one end of rotation control component passes out device outer case and is connected with rotating table, and rotation control component and angle detection component are electrically connected with drive module component, power module component respectively.

2. The static calibration device for a portable brake performance tester of claim 1, wherein: The rotation control component includes a first support frame, a speed reducer, and a drive motor. The speed reducer is fixed to the right top of the first support frame. The left drive end of the speed reducer is drivingly connected with the angle detection component through a coupling. The right drive end of the speed reducer extends out of the device outer case and is connected with the rotating table. The drive motor is arranged below the speed reducer and is drivingly connected with it. The speed reducer and the drive motor are electrically connected with the drive module component and the power module component respectively.

3. The static calibration device for a portable brake performance tester of claim 2, wherein: The angle detection component includes a second support frame and an angle encoder. The second support frame is arranged on the left side of the first support frame. The angle encoder is fixed to the left top of the second support frame. The rotating shaft of the angle encoder is drivingly connected with the speed reducer through a coupling. The angle encoder is electrically connected with the drive module component and the power module component respectively.

4. The static calibration device for a portable brake performance tester of claim 2, wherein: The bottom of the rotating table is provided with a fixing seat. The right drive end of the speed reducer is inserted into the fixing seat. The top of the rotating table is provided with a clamping piece.

5. The static calibration device for a portable brake performance tester of claim 4, wherein: The clamping piece includes a first screw rod, a second screw rod, a first adjusting nut, a second adjusting nut, and a clamping plate. The first screw rod and the second screw rod are arranged on the two sides of the top of the rotating table. The clamping plate is sleeved on the first screw rod and the second screw rod respectively. The first adjusting nut and the second adjusting nut are screwed on the first screw rod and the second screw rod respectively.

6. The static calibration device for a portable brake performance tester of claim 1, wherein: The front side of the device outer case is provided with a display screen. The back side top of the device outer case is provided with a USB interface, a communication interface, and a power switch. The back side bottom of the device outer case is provided with two rows of heat dissipation holes. The display screen, the USB interface, the communication interface, and the power switch are electrically connected with the drive module component and the power module component respectively.

7. The static calibration device for a portable brake performance tester of claim 1, wherein: The bottom of the device outer case is provided with support feet at four corners respectively.

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