Automobile braking force detection device

Abstract

The utility model discloses an automobile braking force detection device which comprises a bottom plate, the upper end of the bottom plate is provided with two detection main bodies, the upper ends of the detection main bodies are rotatably connected with two rotating cylinders, and the detection main bodies are internally provided with inner cavities; a hydraulic cylinder is started, a switch of the hydraulic cylinder is connected to the outer side of a detection body, the hydraulic cylinder drives one push plate to move, the push plate can push a friction plate to rotate upwards in the moving process, meanwhile, one push plate drives one rack to move, one rack drives a gear to rotate, and the gear drives the other rack to move reversely; one push plate moves and pushes the other friction plate to rotate upwards, so that the two friction plates rotate upwards at the same time, the friction plates are attached to the rotary drum, larger extrusion force can be provided for the rotary drum along with upward rotation of the friction plates, the resistance between the rotary drum and the friction plates is increased, and then the effect of adjusting the rotation resistance of the rotary drum is achieved.

Description

Technical Field

[0001] The utility model relates to a vehicle braking force detection device. Background Art

[0002] Automobile braking performance refers to the ability of a car to slow down or stop while driving, or to maintain a certain speed when going downhill. The braking process of a car is to artificially increase the driving resistance of the car, with the help of wheel brakes, engine or special auxiliary brakes. Automobile inspection is to determine the technical condition or working ability of the car. During the use of the car, as the use time increases (or the mileage increases), its parts gradually wear, corrode, deform, age, and the lubricant deteriorates. Automobile braking force detection is indispensable. When the car brakes on the brake platform, the braking force of the wheel acts on the roller, giving the roller a braking torque, which can be transmitted to the force sensor through the force measuring arm. The force sensor measures the force, thereby calculating the torque and the braking force of the wheel.

[0003] Nowadays, wheels are inspected using rollers, but the rotational resistance of the rollers themselves cannot be adjusted, resulting in the rollers being unable to adapt to the inspection of different wheels. Therefore, it is necessary to replace rollers with different rotational resistances to adapt to different types of tires. However, replacing the rollers is rather troublesome, and therefore will affect the inspection efficiency of the vehicle. Utility Model Content

[0004] The utility model aims to provide a vehicle braking force detection device to overcome the defect that a roller used for detection cannot adjust its own rotation resistance.

[0005] The technical solution to achieve the above-mentioned purpose is: a vehicle braking force detection device, including a base plate, two detection bodies are arranged on the upper end of the base plate, the upper ends of the detection bodies are rotatably connected to two rotating cylinders, an inner cavity is opened inside the detection body, the bottom of the rotating cylinder is located on the inner side of the inner cavity, the bottom end of the inner cavity is rotatably connected to two symmetrically distributed rotating shafts, the outer wall of the rotating shaft is connected to a friction plate, the inner wall of the inner cavity is opened with a slide groove, the inner wall of the slide groove is slidably connected to a push plate, the bottom end of the inner cavity is connected to a hydraulic cylinder, the output end of the hydraulic cylinder is connected to one of the push plates, the outer wall of the push plate is connected to a rack, the bottom surface of the inner cavity is rotatably connected to a gear, the rack is meshed with the gear, and the two racks are diagonally distributed with respect to the gear.

[0006] Preferably, one of the detection bodies is fixedly connected to the bottom plate, and the bottom of the other detection body is movably connected to the bottom plate.

[0007] Preferably, a plurality of protruding particles are provided on the surface of the friction plate.

[0008] Preferably, the friction plate is located below the drum, and the push plate is located below the friction plate.

[0009] Preferably, the detection body is in the shape of an isosceles trapezoid.

[0010] Preferably, the outer wall of one of the detection bodies is connected to a fixed block, the outer wall of the fixed block is threadedly connected to a limiting screw, the bottom end of the limiting screw is rotatably connected to the limiting rod, the outer wall of the detection body is provided with two symmetrically distributed through holes, a round rod is inserted and connected in the through hole, one end of the round rod is provided with a limiting groove, the other end of the round rod is connected to a support screw, the outer wall of the support screw is threadedly connected to two limiting nuts, and the outer wall of the support screw passes through the through hole on the other detection body.

[0011] Preferably, the outer wall of the limiting rod is slidably connected to one of the detection bodies.

[0012] Preferably, a placement groove is opened at one end of the through hole, and the diameter of the placement groove is larger than the diameter of the limiting nut. The round rod includes a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the second connecting rod, and one end of the supporting screw is connected to the second connecting rod. The limiting groove is located on the first connecting rod, and the diameter of the first connecting rod is larger than the diameter of the second connecting rod.

[0013] The beneficial effects of the utility model are:

[0014] 1) Start the hydraulic cylinder, whose switch is connected to the outside of the detection body. The hydraulic cylinder drives one of the push plates to move. During the movement of the push plate, it will push the friction plate upward to rotate. At the same time, one of the push plates drives one of the racks to move, and one of the racks drives the gear to rotate. The gear drives the other rack to move in the opposite direction, so that the other push plate moves and pushes the other friction plate to rotate upward, so that the two friction plates rotate upward at the same time, so that the friction plates are in contact with the rotating drum. As the friction plates rotate upward, they will give the rotating drum a greater extrusion force to increase the resistance between the rotating drum and the friction plates, thereby achieving the effect of adjusting the rotation resistance of the rotating drum.

[0015] 2) Insert the round rod into the through hole on one of the detection bodies, screw a limit nut into the support screw, drive the support screw to be inserted into the through hole on the other detection body, and adjust the distance between the two detection bodies by sliding the other detection body to achieve the effect of detecting different wheel spacings. Screw the two limit nuts into the two sides of the other detection body respectively and tightly to fix the other detection body, align the limit groove with the limit rod, and rotate the limit screw to move the limit rod and snap it into the limit groove, thereby fixing the round rod on one of the detection bodies, and then stably adjusting the distance between the two detection bodies, achieving the effect of the detection body adapting to more wheel spacings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 6 yes Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 7 yes Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0023] 1. Bottom plate; 2. Detection body; 3. Inner cavity; 4. Rotating drum; 5. Rotating shaft; 6. Friction plate; 7. Slide groove; 8. Hydraulic cylinder; 9. Push plate; 10. Rack; 11. Gear; 12. Through hole; 13. Placement groove; 14. Round rod; 15. Support screw; 16. Limit nut; 17. Limit groove; 18. Fixed block; 19. Limit screw; 20. Limit rod. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] The utility model will be further described below in conjunction with the accompanying drawings.

[0026] Reference Figure 1-7A vehicle braking force detection device comprises a bottom plate 1, two detection bodies 2 are arranged at the upper end of the bottom plate 1, and the shape of the detection bodies 2 is an isosceles trapezoidal shape, one of the detection bodies 2 is fixedly connected to the bottom plate 1, and the bottom of the other detection body 2 is movably connected to the bottom plate 1, and the upper end of the detection body 2 is rotatably connected to two rotating cylinders 4, and the detection body 2 is provided with an inner cavity 3, and the bottom of the rotating cylinder 4 is located inside the inner cavity 3, and the bottom end of the inner cavity 3 is rotatably connected to two symmetrically distributed rotating shafts 5, and the outer wall of the rotating shaft 5 is connected to a friction A wiping plate 6, the surface of which is provided with a plurality of raised particles, the friction plate 6 is located below the rotating drum 4, the push plate 9 is located below the friction plate 6, a slide groove 7 is provided on the inner wall of the inner cavity 3, the inner wall of the slide groove 7 is slidably connected with the push plate 9, the bottom end of the inner cavity 3 is connected with a hydraulic cylinder 8, the output end of the hydraulic cylinder 8 is connected with one of the push plates 9, the outer wall of the push plate 9 is connected with a rack 10, the bottom surface of the inner cavity 3 is rotatably connected with a gear 11, the rack 10 is meshed with the gear 11, and the two racks 10 are diagonally distributed with respect to the gear 11.

[0027] When it is necessary to adjust the rotation resistance of the rotating drum 4 itself, the hydraulic cylinder 8 is started, and its switch is connected to the outside of the detection body 2. The hydraulic cylinder 8 drives one of the push plates 9 to move. During the movement of the push plate 9, it will push the friction plate 6 upward to rotate upward. At the same time, one of the push plates 9 drives one of the racks 10 to move, and one of the racks 10 drives the gear 11 to rotate, and the gear 11 drives the other rack 10 to move in the opposite direction, so that the other push plate 9 moves and pushes the other friction plate 6 to rotate upward, so that the two friction plates 6 rotate upward at the same time, so that the friction plates 6 are in contact with the rotating drum 4, and as the friction plates 6 rotate upward, they will give the rotating drum 4 a greater extrusion force to increase the resistance between the rotating drum 4 and the friction plates 6, thereby achieving the effect of adjusting the rotation resistance of the rotating drum 4.

[0028] Reference Figure 4-7 , the outer wall of one of the detection bodies 2 is connected with a fixed block 18, the outer wall of the fixed block 18 is threadedly connected with a limiting screw 19, the bottom end of the limiting screw 19 is rotatably connected with a limiting rod 20, the outer wall of the detection body 2 is provided with two symmetrically distributed through holes 12, the through hole 12 is inserted with a round rod 14 connected, one end of the round rod 14 is provided with a limiting groove 17, the other end of the round rod 14 is connected with a support screw 15, the outer wall of the support screw 15 is threadedly connected with two limiting nuts 16, the outer wall of the support screw 15 passes through the through hole 12 on the other detection body 2, the outer wall of the limiting rod 20 is slidably connected with one of the detection bodies 2, one end of the through hole 12 is provided with a placement groove 13, the diameter of the placement groove 13 is larger than the diameter of the limiting nut 16, the round rod 14 includes a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the second connecting rod, one end of the support screw 15 is connected to the second connecting rod, the limiting groove 17 is located on the first connecting rod, and the diameter of the first connecting rod is larger than the second connecting rod.

[0029] Insert the round rod 14 into the through hole 12 on one of the detection bodies 2, screw a limit nut 16 into the support screw 15, drive the support screw 15 to be inserted into the through hole 12 on the other detection body 2, and adjust the distance between the two detection bodies 2 by sliding the other detection body 2 to achieve the effect of detecting different wheel spacings, screw the two limit nuts 16 into the two sides of the other detection body 2 tightly to fix the other detection body 2, align the limit groove 17 with the limit rod 20, rotate the limit screw 19 to move the limit rod 20 and snap it into the limit groove 17, so that the round rod 14 is fixed on one of the detection bodies 2, and then stably adjust the distance between the two detection bodies 2, so as to achieve the effect of the detection body 2 adapting to more wheel spacings.

[0030] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A vehicle braking force detection device, comprising a base plate (1), characterized in that: Two detection bodies (2) are arranged at the upper end of the bottom plate (1), and the upper ends of the detection bodies (2) are rotatably connected to two rotating cylinders (4). An inner cavity (3) is provided inside the detection body (2), and the bottom of the rotating cylinder (4) is located inside the inner cavity (3). The bottom end of the inner cavity (3) is rotatably connected to two symmetrically distributed rotating shafts (5), and the outer wall of the rotating shaft (5) is connected to a friction plate (6). A sliding groove (7) is provided on the inner wall of the inner cavity (3), and a push plate (9) is slidably connected to the inner wall of the sliding groove (7). The bottom end of the inner cavity (3) is connected to a hydraulic cylinder (8), and the output end of the hydraulic cylinder (8) is connected to one of the push plates (9). The outer wall of the push plate (9) is connected to a rack (10). The bottom surface of the inner cavity (3) is rotatably connected to a gear (11), and the rack (10) meshes with the gear (11). The two racks (10) are diagonally distributed with respect to the gear (11).

2. The vehicle braking force detection device according to claim 1, characterized in that: One of the detection bodies (2) is fixedly connected to the bottom plate (1), and the bottom of the other detection body (2) is movably connected to the bottom plate (1).

3. The vehicle braking force detection device according to claim 1, characterized in that: The surface of the friction plate (6) is provided with a plurality of protruding particles.

4. The vehicle braking force detection device according to claim 1, characterized in that: The friction plate (6) is located below the rotating drum (4), and the push plate (9) is located below the friction plate (6).

5. The vehicle braking force detection device according to claim 1, characterized in that: The shape of the detection body (2) is an isosceles trapezoid.

6. The vehicle braking force detection device according to claim 1, characterized in that: The outer wall of one of the detection bodies (2) is connected to a fixed block (18), the outer wall of the fixed block (18) is threadedly connected to a limit screw (19), the bottom end of the limit screw (19) is rotatably connected to a limit rod (20), the outer wall of the detection body (2) is provided with two symmetrically distributed through holes (12), a round rod (14) is inserted and connected in the through hole (12), one end of the round rod (14) is provided with a limit groove (17), the other end of the round rod (14) is connected to a support screw (15), the outer wall of the support screw (15) is threadedly connected to two limit nuts (16), and the outer wall of the support screw (15) passes through the through hole (12) on the other detection body (2).

7. The vehicle braking force detection device according to claim 6, characterized in that: The outer wall of the limiting rod (20) is slidably connected to one of the detection bodies (2).

8. The vehicle braking force detection device according to claim 6, characterized in that: A placement groove (13) is formed at one end of the through hole (12), and the diameter of the placement groove (13) is greater than the diameter of the limiting nut (16). The round rod (14) comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the second connecting rod, one end of the supporting screw rod (15) is connected to the second connecting rod, and the limiting groove (17) is located on the first connecting rod, and the diameter of the first connecting rod is greater than the diameter of the second connecting rod.

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