Brake disc circumference run-out detection device

Abstract

The utility model provides a brake disc circumference run-out detection device, which relates to the technical field of detection devices and comprises a machine body, an electric push rod is arranged in the machine body, a machine head is arranged at one end of the electric push rod, and the bottom end of a gear is rotatably connected with the inner wall of a rectangular groove. A rectangular groove is formed in the outer side of the supporting rod, two T-shaped grooves are formed in the bottom end of the inner wall of the rectangular groove, the top end of each T-shaped block is fixedly connected with a toothed bar, one end of each toothed bar is fixedly connected with a connecting rod, and one end of each connecting rod is fixedly connected with a fan-shaped block. The two fan-shaped blocks are controlled to move by rotating the rotating shaft to change the positions of the two fan-shaped blocks, one sides of the two fan-shaped blocks abut against the inner walls of the inner diameters of the brake discs respectively, the positions, outside the supporting rods, of the brake discs with different inner diameters can be fixed conveniently, and the flexibility and practicability of the detection device in use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a brake disc circumferential runout detection device. Background Art

[0002] Generally speaking, the maximum allowable runout of the brake disc should be strictly controlled within 0.05mm. This is to ensure that the vehicle can remain stable during high-speed driving or emergency braking, and to avoid steering wheel shaking or other safety hazards caused by the brake disc's runout. Therefore, the brake disc needs to be tested for its circumferential runout using a detection device before installation and use.

[0003] When using a circular runout detection device to detect a brake disc, the center portion of the brake disc needs to be placed on the support rod of the detection device, and the rotation of the support rod is controlled to perform detection through a high-precision detection head. When detecting brake discs of different sizes, the support rod of the detection device needs to be replaced so that the center portion of the brake disc can be placed on the support rod. However, when detecting brake discs of different specifications, since the bottom end of the support rod needs to be connected to the motor, replacing the support rod will greatly reduce the efficiency of using the detection device. Utility Model Content

[0004] The utility model aims to solve the problem that when testing brake discs of different specifications, the bottom end of the support rod needs to be connected to the motor, and the efficiency of using the detection device will be greatly reduced by replacing the support rod.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a brake disc circular runout detection device, including a body, an electric push rod is arranged inside the body, a machine head is arranged at one end of the electric push rod, a machine rod is fixedly connected to one side of the body, a motor is arranged at the bottom end of the machine rod, a support rod is arranged at the output end of the motor, the outer surface of the support rod rotates on the inner wall of the machine rod, a positioning device is arranged at the top end of the support rod, the positioning device includes a rectangular rod, a rectangular groove is opened at the top end of the support rod, and both ends of the rectangular rod are fixedly connected to the machine rod. The gear is fixedly connected to both sides of the inner wall of the rectangular groove, the inner wall of the rectangular rod is rotatably connected with a rotating shaft, the top end of the rotating shaft is threadedly connected with a threaded ring, the bottom end of the rotating shaft is fixedly connected with a gear, the bottom end of the gear is rotatably connected to the inner wall of the rectangular groove, two T-slots are provided at the bottom end of the inner wall of the rectangular groove, the inner wall of the T-slot is slidably connected with a T-block, the top end of the T-block is fixedly connected with a gear rod, the outer surface of the gear rod is meshed with the outer surface of the gear, one end of the gear rod is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a fan-shaped block.

[0006] The effect achieved by the above components is: when the brake disc is tested for circular runout, the brake disc can be put on the top end of the support rod, and then the rotating shaft is rotated to control the gear to rotate, so that the two gear rods move in opposite directions on the inner wall of the T-slot through the T-block at the bottom, and the fan-shaped blocks at one end of the connecting rod are respectively pressed against the inner wall of the inner diameter of the brake disc, and then the rotating shaft is controlled by hand so that the rotating shaft does not rotate, and the threaded ring on the outer surface of the rotating shaft is rotated to make the threaded ring move downward on the outer surface of the rotating shaft and press it against the top end of the rectangular rod to fix the position of the rotating shaft and the rectangular rod, thereby fixing the position of the brake disc on the outer surface of the support rod.

[0007] Preferably, a stopper is fixedly connected to the top end of the rotating shaft, and the length of the stopper is greater than the diameter of the rotating shaft.

[0008] The effect achieved by the above components is: by setting the stopper, the movement range of the threaded ring at the top end of the shaft can be limited to prevent the threaded ring from falling off the shaft surface when it moves upward on the shaft surface.

[0009] Preferably, a plurality of protrusions are fixedly connected to the outer surface of the threaded ring, and the protrusions are distributed in a circle on the outer surface of the threaded ring.

[0010] The effect achieved by the above components is that holding the protrusion on the outer surface of the threaded ring can more conveniently control the rotation of the threaded ring to adjust the position of the threaded ring without slipping.

[0011] Preferably, a gasket is fixedly connected to the bottom end of the threaded ring, and the gasket is made of rubber material.

[0012] The effect achieved by the above components is that by arranging the gasket made of rubber material, the threaded ring presses one side of the gasket against the outer surface of the rectangular rod to fix the position of the rotating shaft more stably and not easy to slide.

[0013] Preferably, a plurality of convex strips are fixedly connected to one side of the sector-shaped block, the convex strips are linearly distributed on one side of the sector-shaped block, and the convex strips are made of rubber material.

[0014] The effect achieved by the above components is: by setting the convex strips made of rubber material, the friction force when the side of the fan-shaped block with the convex strips presses against the inner wall of the inner diameter of the brake disc can be increased, so that the fan-shaped block can fix the position of the brake disc on the outer surface of the support rod more stably.

[0015] Preferably, an oblique rod is fixedly connected to the outer surface of the connecting rod, and two ends of the oblique rod are respectively fixedly connected to one side of two ends of the connecting rod.

[0016] The effect achieved by the above components is that the angles at both ends of the connecting rod can be reinforced by arranging the oblique rods, thereby preventing the outer surface shape of the connecting rod from being deformed when the fan-shaped block is subjected to force.

[0017] Preferably, a protective device is provided at the top of the machine rod, and the protective device includes a baffle, and two sliding rods are fixedly connected to the bottom end of the baffle. Two sliding grooves are provided at the top of the machine rod, and the outer surfaces of the two sliding rods slide on the inner walls of the two sliding grooves respectively.

[0018] The effect achieved by the above components is: when the detection device is not in use, the baffle can be pushed through the sliding rod at the bottom to slide on the inner wall of the slide groove to cover the control button at the top of the machine rod, covering the control button and avoiding accidentally touching the control button to cause the machine to start unexpectedly or affect the operating parameters of the machine as much as possible.

[0019] Preferably, a slot block is fixedly connected to the top end of the baffle, and two grooves are formed on the outer surface of the slot block.

[0020] The effect achieved by the above components is that pinching the two grooves on the outer surface of the slot block can more conveniently push the slot block to control the baffle to move and adjust the position.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, by setting a positioning device, when the brake disc is tested, the inner diameter of the brake disc is sleeved on the outside of the support rod, and then the two sector blocks are controlled to move and change their positions by rotating the rotating shaft, and one side of the two sector blocks is respectively pressed against the inner wall of the inner diameter of the brake disc, which is convenient for fixing the position of brake discs with different inner diameters outside the support rod, thereby increasing the flexibility and practicality of the detection device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 For this utility model Figure 1 A local enlarged three-dimensional structure schematic diagram;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the body of the utility model;

[0026] Figure 4 For this utility model Figure 3 A schematic diagram of a partially enlarged three-dimensional structure at B;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the gear rod of the utility model.

[0028] Legend: 1. Machine body; 2. Positioning device; 3. Protective device; 4. Electric push rod; 5. Machine head; 6. Motor; 7. Machine rod; 8. Support rod; 21. Rectangular groove; 22. Rectangular rod; 23. Rotating shaft; 24. Gear; 25. T-slot; 26. T-block; 27. Gear rod; 28. Connecting rod; 29. ​​Fan-shaped block; 210. Threaded ring; 211. Block; 212. Protrusion; 213. Gasket; 214. Protrusion; 215. Oblique rod; 31. Slide groove; 32. Sliding rod; 33. Baffle; 34. Slot block. DETAILED DESCRIPTION

[0029] Embodiment 1, as Figure 1 - Figure 5 As shown, a brake disc circular runout detection device comprises a body 1, an electric push rod 4 is arranged inside the body 1, a machine head 5 is arranged at one end of the electric push rod 4, a machine rod 7 is fixedly connected to one side of the body 1, a motor 6 is arranged at the bottom end of the machine rod 7, a support rod 8 is arranged at the output end of the motor 6, the outer surface of the support rod 8 rotates on the inner wall of the machine rod 7, a positioning device 2 is arranged at the top of the support rod 8, the positioning device 2 comprises a rectangular rod 22, a rectangular groove 21 is opened at the top of the support rod 8, two ends of the rectangular rod 22 are fixedly connected to the two sides of the inner wall of the rectangular groove 21, and the rectangular rod 22 is fixedly connected to the inner wall of the rectangular groove 21. The inner wall of the rectangular rod 22 is rotatably connected with a rotating shaft 23, the top of the rotating shaft 23 is threadedly connected with a threaded ring 210, the bottom end of the rotating shaft 23 is fixedly connected with a gear 24, the bottom end of the gear 24 is rotatably connected to the inner wall of the rectangular groove 21, the bottom end of the inner wall of the rectangular groove 21 is provided with two T-slots 25, the inner wall of the T-slot 25 is slidably connected with a T-block 26, the top of the T-block 26 is fixedly connected with a gear rod 27, the outer surface of the gear rod 27 is meshed with the outer surface of the gear 24, one end of the gear rod 27 is fixedly connected with a connecting rod 28, and one end of the connecting rod 28 is fixedly connected to The fan-shaped block 29 is connected to the brake disc. When the brake disc is tested for circumferential runout, the brake disc can be placed on the top of the support rod 8, and then the shaft 23 is rotated to control the gear 24 to rotate, so that the two gear rods 27 move in opposite directions on the inner wall of the T-shaped groove 25 through the T-shaped block 26 at the bottom, and the fan-shaped block 29 at one end of the connecting rod 28 is respectively pressed against the inner wall of the inner diameter of the brake disc, and then the shaft 23 is controlled by hand so that the shaft 23 does not rotate, and the threaded ring 210 on the outer surface of the shaft 23 is rotated so that the threaded ring 210 moves downward on the outer surface of the shaft 23 and is pressed against the torque. The top of the rectangular rod 22 fixes the position of the rotating shaft 23 and the rectangular rod 22, and fixes the position of the brake disc on the outer surface of the support rod 8. By setting the positioning device 2, when the brake disc is tested, the inner diameter of the brake disc is sleeved on the outside of the support rod 8, and then the two fan-shaped blocks 29 are controlled to move and change the position of the two fan-shaped blocks 29 by rotating the rotating shaft 23, and one side of the two fan-shaped blocks is respectively pressed against the inner wall of the inner diameter of the brake disc, which is convenient for fixing the position of brake discs with different inner diameters outside the support rod 8, thereby increasing the flexibility and practicality of the detection device when used.

[0030] Reference Figure 1 - Figure 5 In this embodiment: a stopper 211 is fixedly connected to the top of the rotating shaft 23, and the length of the stopper 211 is greater than the diameter of the rotating shaft 23. By setting the stopper 211, the movement range of the threaded ring 210 at the top of the rotating shaft 23 can be limited to prevent the threaded ring 210 from falling off the surface of the rotating shaft 23 when the surface of the rotating shaft 23 moves upward. A plurality of protrusions 212 are fixedly connected to the outer surface of the threaded ring 210, and the protrusions 212 are distributed in a circle on the outer surface of the threaded ring 210. Holding the protrusions 212 on the outer surface of the threaded ring 210 can more conveniently control the rotation of the threaded ring 210 to adjust the position of the threaded ring 210 without slipping.

[0031] Reference Figure 1 - Figure 5 In this embodiment: the bottom end of the threaded ring 210 is fixedly connected with a gasket 213, which is made of rubber material. By setting the gasket 213 made of rubber material, the threaded ring 210 presses one side of the gasket 213 against the outer surface of the rectangular rod 22, so that the position of the rotating shaft 23 is more stable and not easy to slide. One side of the fan-shaped block 29 is fixedly connected with a plurality of convex strips 214, which are linearly distributed on one side of the fan-shaped block 29. The convex strips 214 are made of rubber material. By setting the rubber material The convex strip 214 can increase the friction force when the side of the sector block 29 provided with the convex strip 214 presses against the inner wall of the inner diameter of the brake disc, so that the sector block 29 can fix the position of the brake disc on the outer surface of the support rod 8 more stably. The outer surface of the connecting rod 28 is fixedly connected with an inclined rod 215, and the two ends of the inclined rod 215 are respectively fixedly connected to one side of the two ends of the connecting rod 28. By setting the inclined rod 215, the angles of the two ends of the connecting rod 28 can be reinforced, so as to avoid deformation of the outer surface shape of the connecting rod 28 when the sector block 29 is subjected to force.

[0032] Reference Figure 1 , Figure 3 and Figure 4 As shown, in the present embodiment: a protective device 3 is provided at the top of the machine rod 7, and the protective device 3 includes a baffle plate 33, and the bottom end of the baffle plate 33 is fixedly connected to two sliding rods 32, and the top end of the machine rod 7 is provided with two sliding grooves 31, and the outer surfaces of the two sliding rods 32 slide on the inner walls of the two sliding grooves 31 respectively. When the detection device is not in use, the baffle plate 33 can be pushed to slide on the inner wall of the sliding groove 31 through the sliding rod 32 at the bottom to cover the baffle plate 33 at the control button at the top of the machine rod 7, and the control button is covered to avoid accidentally touching the control button to cause the machine body 1 to start unexpectedly or affect the operating parameters of the machine body 1 as much as possible. The top end of the baffle plate 33 is fixedly connected to a slot block 34, and the outer surface of the slot block 34 is provided with two grooves. Pinching the two grooves on the outer surface of the slot block 34 can more conveniently push the slot block 34 to control the baffle plate 33 to move and adjust the position.

[0033] Working principle: When the brake disc is tested for circular runout, first put the brake disc on the top of the support rod 8, then pinch the stopper 211 to rotate the shaft 23 to control the gear 24 to rotate, so that the two gear rods 27 move in opposite directions on the inner wall of the T-shaped groove 25 through the T-shaped block 26 at the bottom, and place the side of the fan-shaped block 29 at one end of the two connecting rods 28 with the rubber convex strip 214 against the inner wall of the inner diameter of the brake disc, and then control the shaft 23 by hand so that the shaft 23 does not rotate, rotate the threaded ring 210 on the outer surface of the shaft 23 so that the threaded ring 210 moves downward on the outer surface of the shaft 23, and press the side of the threaded ring 210 with the rubber gasket 213 against the top of the rectangular rod 22 to turn the shaft The relative positions of 23 and the rectangular rod 22 are fixed, and the position of the brake disc on the outer surface of the support rod 8 is fixed. Subsequently, the operating parameters of the machine body 1 are adjusted through the control button at the top of the machine rod 7, so that the electric push rod 4 controls the movement of the machine head 5 so that the machine head 5 is located above the brake disc. The operating motor 6 drives the support rod 8 and the brake disc to rotate, and the circular runout of the brake disc is detected by the high-precision detection head at the bottom of the machine head 5, and the data is displayed on the display screen of the machine body 1. When the detection device is not in use, the baffle 33 can be pushed by pinching the groove on the outer surface of the slot block 34 to slide the baffle 33 on the inner wall of the slide groove 31 through the sliding rod 32, and the control button is covered by the baffle 33 to avoid accidental touching of the control button as much as possible.

Claims

1. A brake disc circumferential runout detection device, comprising a body (1), characterized in that: An electric push rod (4) is arranged inside the machine body (1), a machine head (5) is arranged at one end of the electric push rod (4), a machine rod (7) is fixedly connected to one side of the machine body (1), a motor (6) is arranged at the bottom end of the machine rod (7), a support rod (8) is arranged at the output end of the motor (6), the outer surface of the support rod (8) rotates on the inner wall of the machine rod (7), a positioning device (2) is arranged at the top end of the support rod (8), the positioning device (2) comprises a rectangular rod (22), a rectangular groove (21) is formed at the top end of the support rod (8), two ends of the rectangular rod (22) are fixedly connected to two sides of the inner wall of the rectangular groove (21), and the inner wall of the rectangular rod (22) is rotatably connected to the inner wall of the rectangular groove (21). A rotating shaft (23) is provided, the top end of the rotating shaft (23) being threadedly connected to a threaded ring (210), the bottom end of the rotating shaft (23) being fixedly connected to a gear (24), the bottom end of the gear (24) being rotatably connected to the inner wall of the rectangular groove (21), the bottom end of the inner wall of the rectangular groove (21) being provided with two T-shaped grooves (25), the inner wall of the T-shaped groove (25) being slidably connected to a T-shaped block (26), the top end of the T-shaped block (26) being fixedly connected to a gear rod (27), the outer surface of the gear rod (27) being meshed with the outer surface of the gear (24), one end of the gear rod (27) being fixedly connected to a connecting rod (28), and one end of the connecting rod (28) being fixedly connected to a fan-shaped block (29).

2. A brake disc circumferential runout detection device according to claim 1, characterized in that: A stopper (211) is fixedly connected to the top end of the rotating shaft (23); the length of the stopper (211) is greater than the diameter of the rotating shaft (23).

3. A brake disc circumferential runout detection device according to claim 2, characterized in that: A plurality of protrusions (212) are fixedly connected to the outer surface of the threaded ring (210), and the protrusions (212) are distributed in a circular pattern on the outer surface of the threaded ring (210).

4. A brake disc circumferential runout detection device according to claim 3, characterized in that: A gasket (213) is fixedly connected to the bottom end of the threaded ring (210), and the gasket (213) is made of rubber material.

5. A brake disc circumferential runout detection device according to claim 4, characterized in that: A plurality of convex strips (214) are fixedly connected to one side of the sector-shaped block (29); the convex strips (214) are linearly distributed on one side of the sector-shaped block (29); and the convex strips (214) are made of rubber material.

6. A brake disc circumferential runout detection device according to claim 5, characterized in that: An oblique rod (215) is fixedly connected to the outer surface of the connecting rod (28), and two ends of the oblique rod (215) are respectively fixedly connected to one side of two ends of the connecting rod (28).

7. A brake disc circumferential runout detection device according to claim 6, characterized in that: A protective device (3) is provided at the top end of the machine rod (7), the protective device (3) comprising a baffle (33), the bottom end of the baffle (33) being fixedly connected to two sliding rods (32), the top end of the machine rod (7) being provided with two sliding grooves (31), the outer surfaces of the two sliding rods (32) sliding on the inner walls of the two sliding grooves (31) respectively.

8. A brake disc circumferential runout detection device according to claim 7, characterized in that: A slot block (34) is fixedly connected to the top end of the baffle (33), and two grooves are formed on the outer surface of the slot block (34).

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