CN212645956U

CN212645956U - Detection device for braking force of wheels of accident vehicle

Info

Publication number: CN212645956U
Application number: CN202020629467.3U
Authority: CN
Inventors: 谭国清
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-03-02
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a detection apparatus for be used for accident car wheel braking force, include the torque shaft support and detect the seat, the torque shaft support on be equipped with the connecting axle, be equipped with the wheel joint dish on the connecting axle of torque shaft support one side, be equipped with torque wrench on the connecting axle between torque shaft support and the wheel joint dish, detection seat lower part be equipped with the jack, the ejector pin top of jack is equipped with the atress piece, the bottom of atress piece is equipped with pressure sensor, the detection seat on still be equipped with the controller, the controller respectively with jack and pressure sensor circuit connection. The utility model discloses a detection device for accident car wheel braking force can detect out the concrete numerical value of accident car wheel braking force, has convenient operation, detection accuracy height, laborsaving characteristics of saving trouble.

Description

Detection device for braking force of wheels of accident vehicle

Technical Field

The utility model relates to an automobile inspection technical field, more specifically say, especially relate to a detection device for accident car wheel braking force.

Background

Generally, the braking performance of an automobile is evaluated by the magnitude of the braking force of a wheel, and when the braking force of the wheel of the automobile needs to be detected, the wheel is driven to a force measurement type braking test bed for detection. During detection, a detected automobile is driven onto the brake test bed, wheels are arranged between the driving roller and the driven roller, the motor is started through the delay circuit, the driving roller and the driven roller drive the wheels to rotate at a low speed, and a driver steps on a brake pedal after the rotating speed of the wheels is stable. The wheel starts to rotate at a reduced speed by the friction torque of the wheel brake. At this time, the driving roller and the driven roller driven by the motor continuously apply acting force opposite to the friction force to the wheel, and at the moment when the automobile wheel stops rotating, the generated acting force is equal to the braking force of the wheel, so that the braking force value of the wheel is obtained.

However, for an accident vehicle, the accident vehicle cannot be driven to a force measurement type brake test bed, even the accident vehicle cannot be normally started at all, so that the detection of the braking force of the wheel is difficult. Furthermore, in order to detect the wheels of the accident vehicle, the wheels of the accident vehicle need to be detached one by one for taking a picture, particularly the wheels of a large truck, the number is large, the size is large, and much time and labor are needed in the detaching process. Therefore, there is a need for a method for detecting the braking force of the wheels of an accident vehicle, so as to detect the braking force of each wheel of the accident vehicle more accurately and more easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detection device for accident car wheel braking force, the device can detect out the concrete numerical value of accident car wheel braking force, has convenient operation, detection accuracy height, the laborsaving characteristics of province.

The utility model adopts the technical scheme as follows:

the utility model provides a detection device for accident car wheel braking force, includes the torque shaft support and detects the seat, the torque shaft support on be equipped with the connecting axle, be equipped with the wheel joint dish on the connecting axle of torque shaft support one side, be equipped with the torque wrench on the connecting axle between torque shaft support and the wheel joint dish, detection seat lower part be equipped with the jack, the ejector pin top of jack is equipped with the atress piece, the bottom of atress piece is equipped with pressure sensor, the detection seat on still be equipped with the controller, the controller respectively with jack and pressure sensor circuit connection.

Furthermore, the middle of the connecting shaft is provided with a limiting rod, one end of the torque wrench is provided with a limiting mechanism, the limiting mechanism comprises a first limiting hole communicated with the insertion hole, and the limiting rod movably penetrates through the insertion hole and is inserted into the first limiting hole in a sliding mode.

Furthermore, the limiting mechanisms are divided into two groups, and the two groups are symmetrically arranged on the upper side and the lower side of one end of the torque wrench.

Furthermore, the wheel joint plate is provided with at least 3 screw fixing seats which can be matched with wheel screws.

Furthermore, one side of the wheel joint disc is provided with a yielding groove.

Furthermore, the top of the stress block is provided with a limiting clamping groove.

Furthermore, the detection seat is also provided with a control switch, and the control switch is connected with the controller circuit.

Furthermore, a wrench groove for placing a torque wrench is further formed in the top of the detection seat.

Furthermore, the torsion shaft support is provided with a limiting lug, and the detection seat is provided with a limiting hole II matched with the limiting lug.

Furthermore, the torsion shaft support is provided with a limiting lug, the detection seat is provided with a limiting hole matched with the limiting lug, and the detection seat is provided with a handle.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

the utility model discloses a detection apparatus for be used for accident car wheel braking force, include the torque shaft support and detect the seat, the torque shaft support on be equipped with the connecting axle, be equipped with the wheel joint dish on the connecting axle of torque shaft support one side, be equipped with the torque wrench on the connecting axle between torque shaft support and the wheel joint dish, detection seat lower part be equipped with the jack, the ejector pin top of jack is equipped with the atress piece, the bottom of atress piece is equipped with pressure sensor, the detection seat on still be equipped with the controller, the controller respectively with jack and pressure sensor circuit connection. During the use, fix accident car wheel on torque shaft support, the operating personnel gets into accident car driver's cabin and steps on brake pedal and open the controller, controller control jack will be forced piece jack-up and make it upwards push away torque wrench, drive the wheel joint dish through the connecting axle and rotate, an effort reverse with wheel braking force has been produced this moment, along with the thrust increase of jack, reverse effort also increases gradually, when waiting that torque wrench produces the displacement, its thrust will keep a definite value, this is exactly the braking force numerical value of wheel, it is more convenient to operate, can also save labour and the time of dismantling the wheel.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a schematic sectional structure of the present invention;

FIG. 5 is an exploded view of the components of the present invention;

fig. 6 is a schematic structural view of the connecting shaft of the present invention;

fig. 7 is a rear view of embodiment 1 of the present invention;

fig. 8 is a plan view of embodiment 1 of the present invention.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Referring to fig. 1 to 5, the utility model discloses a detection device for accident car wheel braking force, wherein, include torsion shaft support 1 and detect seat 2, torsion shaft support 1 on be equipped with connecting axle 13, be equipped with wheel joint dish 11 on the connecting axle 13 of torsion shaft support 1 one side, be equipped with torque wrench 12 on the connecting axle 13 between torsion shaft support 1 and the wheel joint dish 11, detection seat 2 lower part be equipped with jack 21, jack 21's ejector pin top is equipped with atress piece 22, the bottom of atress piece 22 is equipped with pressure sensor 23, detection seat 2 on still be equipped with controller 24, controller 24 respectively with jack 21 and pressure sensor 23 circuit connection. The controller 24 may control the raising and lowering of the jack 21 and may also receive a detected jacking force value of the pressure sensor 23. When the device is used, wheels of the accident vehicle are fixed in the wheel joint plate 11, the torque wrench 12 and the wheel joint plate 11 are simultaneously fixed on the torque shaft bracket 1 through the connecting shaft 13 and are fixed beside the torque shaft bracket 1, and the torque wrench 12 is inserted into the detection seat 2. At this time, the torque wrench 12 is located directly above the force receiving block 22. The controller 24 switch on the detection seat 2 is opened, an operator enters a cab of an accident vehicle to step down a brake pedal, the controller 24 controls the jack 21 to jack the stress block 22 to push the torque wrench 12 upwards, the wheel joint disc 11 is driven to rotate through the connecting shaft 13, an acting force opposite to the wheel brake force is generated at the moment, the opposite acting force is gradually increased along with the increase of the thrust of the jack 21, when the torque wrench 12 generates displacement, the thrust keeps a certain value, which is the brake force value of the wheel, the operation is more convenient, compared with the traditional detection method, the state of the wheel brake pad is checked after the wheel is detached one by one, the size of the brake force is roughly evaluated, the detection data is more accurate, and the labor force and the time for detaching the wheel can be saved through visual inspection.

As shown in fig. 6, a limiting rod 14 is disposed in the middle of the connecting shaft 13, a limiting mechanism is disposed at one end of the torque wrench 12, the limiting mechanism includes a first limiting hole 16 communicated with the insertion hole 15, the limiting rod 14 movably penetrates through the insertion hole 15 and is slidably inserted into the first limiting hole 16, when the connecting shaft 13 is placed at the insertion hole 15, the connecting shaft can be taken out so as to mount the torque wrench 12 and the wheel engaging disc 11 on the torque shaft bracket 1, and when the connecting shaft 13 is slidably inserted into the first limiting hole 16, a limiting effect can be achieved, so that the torque wrench 12 and the wheel engaging disc 11 can rotate synchronously.

The limiting mechanisms are two groups and are symmetrically arranged on the upper side and the lower side of one end of the torque wrench 12, and because the diameter length of the wheels of the small automobile is different from that of the wheels of the large truck, in order to fix the wheels with the two diameters by the torque shaft support 11, the limiting mechanisms with different heights need to be arranged, when the wheels of the large truck need to be fixed, the limiting mechanism on the upper side needs to be used, and when the wheels of the small automobile need to be fixed, the limiting mechanism on the lower side is used.

Furthermore, generally, 4 or 5 screws are arranged on the outer side of the wheel of the car, 8 or 20 screws are arranged on the outer side of the wheel of the truck, the diameter length of the wheel of the car is different from that of the wheel of the truck, screw fixing seats 17 arranged on the circumferences of two different diameter lengths on the wheel joint disc 11 are needed, at least 3 screw fixing seats 17 capable of being matched with the wheel screws are arranged on the circumference of each diameter length on the wheel joint disc 11, and the screws on the outer side of the wheel can be fixed by the screw fixing seats 17 so as to complete the mutual fixing between the wheel and the wheel joint disc 11.

Further, the top of the force-bearing block 22 is provided with a limiting slot 26, and the torque wrench 12 is placed in the limiting slot 26, so that the torque wrench 12 can be limited from shifting when the force-bearing block 22 is lifted.

Further, the detection seat 2 is also provided with a control switch 27, the control switch 27 is in circuit connection with the controller 24, the control switch 27 is connected with the controller 24 through an electric wire, the electric wire of the control switch 27 can be extended, and the control switch 27 is pulled into a cab of the accident vehicle to be operated during use, so that the operation is more convenient.

The top of the detection seat 2 is also provided with a wrench groove 25 for placing the torque wrench 12, so that the torque wrench 12 can be detachably mounted on the wrench groove 25, and is convenient to separate and carry.

The torsion shaft support 1 is provided with a limiting lug 19, the detection base 2 is provided with a limiting hole II 28 matched with the limiting lug 19, and the torsion shaft support 1 and the detection base 2 are placed more in place through the mutual matching of the limiting lug 19 and the limiting hole II 28. The detection seat 2 is provided with a handle, so that the detection seat 2 is convenient to move and carry.

Example 1

Referring to fig. 7 and 8, the present embodiment has substantially the same function and function as the embodiment, except that in the present embodiment, the wheel-engaging plate 11 is provided with a relief groove 18 on one side. The convex parts are arranged on the outer sides of the rear wheels of the large truck, and the abdicating grooves 18 can better accommodate the convex parts on the outer sides of the rear wheels of the large truck to enable the convex parts to be fixed on the wheel joint discs 11.

The above description is only for the preferred embodiment of the present invention, and all modifications, equivalents, improvements and the like made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a detection device for accident car wheel braking force, characterized in that, includes torque shaft support (1) and detects seat (2), torque shaft support (1) on be equipped with connecting axle (13), be equipped with wheel joint dish (11) on connecting axle (13) of torque shaft support (1) one side, be equipped with torque wrench (12) on connecting axle (13) between torque shaft support (1) and wheel joint dish (11), detection seat (2) lower part be equipped with jack (21), the ejector pin top of jack (21) is equipped with atress piece (22), the bottom of atress piece (22) is equipped with pressure sensor (23), detect seat (2) on still be equipped with controller (24), controller (24) respectively with jack (21) and pressure sensor (23) circuit connection.

2. The device for detecting the braking force of the wheels of the accident vehicle as claimed in claim 1, wherein a limiting rod (14) is arranged in the middle of the connecting shaft (13), a limiting mechanism is arranged at one end of the torque wrench (12), the limiting mechanism comprises a first limiting hole (16) communicated with the insertion hole (15) and the insertion hole (15), and the limiting rod (14) movably penetrates through the insertion hole (15) and is slidably inserted into the first limiting hole (16).

3. The apparatus for detecting the braking force of the wheels of a vehicle for accident vehicles according to claim 2, wherein the two sets of the limiting mechanisms are symmetrically arranged at the upper and lower sides of one end of the torque wrench (12).

4. A device for detecting the wheel braking force of a vehicle accident vehicle according to claim 1, characterised in that the wheel interface disc (11) is provided with at least 3 screw mounts (17) adapted to engage with wheel screws.

5. The apparatus for detecting a wheel braking force of a vehicle for a accident vehicle according to claim 1 or 4, wherein the wheel engaging plate (11) is provided with a relief groove (18) at one side thereof.

6. The device for detecting the braking force of the wheels of a accident vehicle as claimed in claim 1, wherein the top of the force-bearing block (22) is provided with a limiting slot (26).

7. A device for detecting the braking force of a wheel of a accident vehicle according to claim 1, characterised in that the detection seat (2) is further provided with a control switch (27), the control switch (27) being in electrical connection with the controller (24).

8. The device for detecting the wheel braking force of an accident vehicle according to claim 1, wherein the top of the detection seat (2) is further provided with a wrench groove (25) for placing the torque wrench (12).

9. The device for detecting the braking force of the wheels of the accident vehicle as claimed in claim 1, wherein the torsion shaft support (1) is provided with a limit projection (19), and the detection seat (2) is provided with a second limit hole (28) matched with the limit projection (19).

10. A device for detecting the braking force of the wheels of a crash vehicle according to claim 1, characterized in that said detection seat (2) is provided with a handle.