Portable brake disc DTV measuring device

Abstract

The utility model discloses a portable brake disc DTV measuring device, which relates to the field of brake disc detection and comprises a first support plate, two kidney-shaped holes are arranged at intervals along the length direction of the first support plate, a first sliding bolt is slidably mounted on one kidney-shaped hole, and a second sliding bolt is slidably mounted on the other kidney-shaped hole; the second supporting plate is connected to the first supporting plate, a kidney-shaped hole is formed in the length direction of the second supporting plate and used for installing a third sliding bolt in a sliding mode, and the third sliding bolt penetrates through the kidney-shaped hole and then is connected with one end of a spline shaft; the brake disc is clamped on the caliper body bracket of the brake caliper body, and the first sliding bolt and the second sliding bolt are used for extending into corresponding mounting holes in the caliper body bracket; the measuring block comprises an upper supporting arm, a measuring ejector pin installed on the upper supporting arm, a lower supporting arm and a dial indicator installed on the lower supporting arm, and a brake disc is clamped between the upper supporting arm and the lower supporting arm. According to the utility model, the thickness difference of the brake disc can be measured in a road test real vehicle assembly state.

Description

Technical Field

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[0001] The utility model relates to the field of brake disc detection, and particularly relates to a portable brake disc DTV measuring device. Background Art

[0002] DTV (full name: disc thickness variation), the dynamic torque vector control four-wheel drive system, refers to the thickness difference of the brake disc. The brake disc DTV measuring devices in the prior art are a brake disc comprehensive measuring instrument and a separately installed displacement sensor, etc. However, although the online comprehensive measuring instrument for the brake disc is accurate in measurement, it can only measure a single brake disc and cannot measure the thickness difference of the brake disc in the state of the vehicle assembly. In addition, there are also defects such as large size of the equipment and lack of portability. Content of the Utility Model[[ID=ll]]

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a portable brake disc DTV measuring device, which can measure the thickness difference of the brake disc in the state of the road test vehicle assembly.

[0004] The purpose of the utility model is achieved by the following technical solutions: This portable brake disc DTV measuring device includes:

[0005] A first support plate, on which two kidney-shaped holes are arranged at intervals along its length direction. A first sliding bolt is slidably installed on one of the kidney-shaped holes, and a second sliding bolt is slidably installed on the other kidney-shaped hole;

[0006] A second support plate, which is connected to the first support plate, and a kidney-shaped hole is opened along the length direction of the second support plate for slidably installing a third sliding bolt. After the third sliding bolt penetrates through the kidney-shaped hole, it is connected to one end of a spline shaft; <00000l5>

[0007] A brake disc, which is clamped on the caliper bracket of the brake caliper. The first sliding bolt and the second sliding bolt are used to extend into the corresponding mounting holes on the caliper bracket to lock and fix the first support plate and the caliper bracket; and

[0008] A measuring block, which includes an upper arm, a measuring tip installed on the upper arm, a lower arm, and a micrometer installed on the lower arm. The upper arm and the lower arm are used to clamp the brake disc so that the measuring tip and the micrometer are respectively in contact with the upper and lower end faces of the brake disc.

[0009] As a further technical solution, the measuring block adopts a "C" - shaped structure. The upper arm and the lower arm are connected by a fixed arm, and a spline sleeve is arranged on the fixed arm for slidably installing on the spline shaft.

[0010] As a further technical solution, an adjusting ring is slidably sleeved on the upper end of the spline shaft. The adjusting ring is locked and fixed to the spline shaft by a fixing screw, and a spring is sleeved on the spline shaft between the adjusting ring and the spline sleeve.

[0011] As a further technical solution, the adjusting ring is provided with an internal spline that matches the spline shaft, and locking holes are provided on the adjusting ring, the lower support arm and the fixed arm. The dial indicator is locked to the lower support arm by locking screws.

[0012] As a further technical solution, the measuring pin and the dial indicator probe are coaxially arranged.

[0013] As a further technical solution, washers and tightening heads are fitted on both the first and second sliding bolts, and manual tightening is achieved by tightening the heads. Washers are fitted on the third sliding bolt.

[0014] As a further technical solution, the first support plate and the second support plate are connected by a threaded fixing bolt.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Low manufacturing cost, simple structure, easy to carry, multi-directional adjustable measurement, and can quickly measure results on the actual vehicle;

[0017] 2. The measuring pin and the dial indicator probe are set coaxially to ensure measurement accuracy;

[0018] 3. The sliding bolt can be adjusted along the oblong hole to accommodate different brake disc sizes, making it more versatile;

[0019] 4. The first and second sliding bolts are assembled and fixed with the clamp body bracket, and at the same time the brake disc is inserted into the measuring block to realize the actual vehicle measurement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the adjusting ring in this utility model.

[0022] Figure 3 This is a schematic diagram of the measuring block in this utility model.

[0023] Figure 4 This is a schematic diagram of the brake assembly in this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the present invention after assembly with the brake assembly.

[0025] Explanation of reference numerals in the attached drawings: 1. First sliding bolt; 2. First support plate; 3. Fixed bolt; 4. Second sliding bolt; 5. Second support plate; 6. Third sliding bolt; 7. Adjusting ring; 8. Fixed screw; 9. Spring; 10. Splined shaft; 11. Measuring block; 12. Locking screw; 13. Dial indicator; 14. Measuring pin; 15. Washer; 16. Tightening head; 17. Brake caliper body; 18. Caliper body bracket; 19. Brake disc; 20. Mounting hole; 21. Waist-shaped hole; 22. Splined sleeve; 23. Locking hole; 24. Upper support arm; 25. Lower support arm; 26. Fixed arm; 27. Internal spline. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings:

[0027] Example: As attached Figures 1-5 As shown, this portable brake disc DTV measuring device includes a first sliding bolt 1, a first support plate 2, a fixing bolt 3, a second sliding bolt 4, a second support plate 5, a third sliding bolt 6, an adjusting ring 7, a fixing screw 8, a spring 9, a spline shaft 10, a measuring block 11, a locking screw 12, a dial indicator 13, a measuring pin 14, a washer 15, a tightening head 16, a brake caliper body 17, a caliper body bracket 18, a brake disc 19, a mounting hole 20, a waist-shaped hole 21, a spline sleeve 22, a locking hole 23, an upper support arm 24, a lower support arm 25, a fixing arm 26, and an inner spline 27.

[0028] Reference Appendix Figure 1 Two oblong holes 21 are spaced apart along the length of the first support plate 2. A first sliding bolt 1 is slidably installed in one oblong hole 21, and a second sliding bolt 4 is slidably installed in the other oblong hole 21. Preferably, a washer 15 and a tightening head 16 are fitted on both the first sliding bolt 1 and the second sliding bolt 4, allowing for manual tightening. The second support plate 5 is connected to the middle of the first support plate 2 (i.e., between the two oblong holes 21) by a fixing bolt 3. An oblong hole 21 is formed along the length of the second support plate 5, and a third sliding bolt 6 is slidably installed in this oblong hole 21. The third sliding bolt 6 passes through the oblong hole 21 and is threaded to the top of the splined shaft 10.

[0029] like Figure 4 , 5 As shown, the brake assembly includes a brake caliper body 17, a caliper bracket 18, and a brake disc 19. The brake disc 19 is mounted on the caliper bracket 18 of the brake caliper body 17, and the caliper bracket 18 is threadedly connected to the brake caliper body 17. When assembling the measuring device with the brake assembly, the first sliding bolt 1 and the second sliding bolt 4 are inserted into the corresponding mounting holes 20 on the caliper bracket 18, so that the first support plate 2 is locked and fixed to the caliper bracket 18. Figure 5 As shown.

[0030] Reference Appendix Figure 1 , 3 , 5. The measuring block 11 adopts a "C" - shaped structure, including an upper arm 24, a measuring thimble 14 mounted on the upper arm 24, a lower arm 25, and a dial indicator 13 mounted on the lower arm 25. The upper arm 24 and the lower arm 25 are connected by a fixed arm 26. A spline sleeve 22 is provided on the fixed arm 26, and the measuring block 11 is slidably mounted on the spline shaft 10 by using the spline sleeve 22. In addition, a brake disc 19 is clamped between the upper arm 24 and the lower arm 25, so that the measuring thimble 14 and the dial indicator 13 are respectively in contact with the upper and lower end faces of the brake disc 19. Preferably, the measuring thimble 14 and the probe of the dial indicator 13 are coaxially arranged, which can ensure the measurement accuracy.

[0031] Further, as shown in Figure 1 , 2 , 5, an adjusting ring 7 is slidably sleeved on the upper end of the spline shaft 10. An internal spline 27 matching the spline shaft 10 is provided on the adjusting ring 7. Preferably, locking holes 23 are opened on the adjusting ring 7, the lower arm 25, and the fixed arm 26. The dial indicator 13 is locked on the lower arm 25 by a locking screw 12, and the adjusting ring 7 is locked and fixed to the spline shaft 10 by a fixing screw 8. A spring 9 is sleeved on the spline shaft 10 between the adjusting ring 7 and the spline sleeve 22. A washer 15 is sleeved on the third sliding bolt 6, and is placed between the head of the third sliding bolt 6 and the second support plate 5.

[0032] The working process of the present utility model:

[0033] The first sliding bolt 1 and the second sliding bolt 4 can slide in the kidney - shaped holes 21 of the first support plate 2. During measurement, move the first sliding bolt 1 and the second sliding bolt 4 to appropriate positions, align the first sliding bolt 1 and the second sliding bolt 4 with the mounting holes 20, and tighten to fix the device (the first support plate 2) on the caliper bracket 18 of the brake assembly. Then, adjust the second support plate 5 to an appropriate angle and tighten the fixing bolt 3 to lock the first support plate 2 and the second support plate 5. The third sliding bolt 6 can move in the kidney - shaped hole 21 of the second support plate 5, and the adjusting ring 7 and the measuring block 11 can axially move on the spline shaft 10. Move the third sliding bolt 6 and the adjusting ring 7 to appropriate positions and tighten the third sliding bolt 6 and the fixing screw 8 so that the brake disc 19 is clamped into the "C" - shaped opening of the measuring block 11, making the axes of the measuring thimble 14 and the dial indicator 13 perpendicular to the disc surface of the brake disc 19. Then, slowly rotate the brake disc 19, observe the value of the dial indicator 13, and record the maximum value and the minimum value. The difference between the two values is the DTV value of the brake disc.

[0034] It can be understood that for those skilled in the art, equivalent replacement or modification of the technical solutions and the inventive concept of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A portable brake disc DTV measuring device, characterized in that, Comprising: A first support plate (2) with two oblong holes (21) arranged at intervals along its length direction. A first sliding bolt (1) is slidably installed on one of the oblong holes (21), and a second sliding bolt (4) is slidably installed on the other oblong hole (21); A second support plate (5) connected to the first support plate (2), with an oblong hole (21) opened along the length direction of the second support plate (5) for slidably installing a third sliding bolt (6). The third sliding bolt (6) penetrates through the oblong hole (21) and then connects to one end of a spline shaft (10); A brake disc (19) clamped on a caliper bracket (18) of a brake caliper body (17). The first sliding bolt (1) and the second sliding bolt (4) are used to extend into corresponding mounting holes (20) on the caliper bracket (18) to lock and fix the first support plate (2) and the caliper bracket (18); and A measuring block (11) including an upper arm (24), a measuring thimble (14) installed on the upper arm (24), a lower arm (25), and a dial indicator (13) installed on the lower arm (25). The brake disc (19) is clamped between the upper arm (24) and the lower arm (25) so that the measuring thimble (14) and the dial indicator (13) respectively keep in contact with the upper and lower end faces of the brake disc (19).

2. The portable brake disc DTV measuring device according to claim 1, characterized in that: The measuring block (11) adopts a "C" - shaped structure. The upper arm (24) and the lower arm (25) are connected by a fixed arm (26), and a spline sleeve (22) is arranged on the fixed arm (26) for slidably installing on the spline shaft (10).

3. The portable brake disc DTV measuring device according to claim 2, characterized in that: An adjusting ring (7) is slidably sleeved on the upper end of the spline shaft (10). The adjusting ring (7) is locked and fixed to the spline shaft (10) by a fixing screw (8), and a spring (9) is sleeved on the spline shaft (10) between the adjusting ring (7) and the spline sleeve (22).

4. The portable brake disc DTV measuring device according to claim 3, characterized in that: The adjusting ring (7) is provided with an internal spline (27) matching the spline shaft (10). Locking holes (23) are opened on the adjusting ring (7), the lower arm (25), and the fixed arm (26). The dial indicator (13) is locked on the lower arm (25) by a locking screw (12).

5. The portable brake disc DTV measuring device according to claim 1, characterized in that: The measuring thimble (14) and the probe of the dial indicator (13) are coaxially arranged.

6. The portable brake disc DTV measuring device according to claim 1, characterized in that: Washers (15) and tightening heads (16) are sleeved on both the first sliding bolt (1) and the second sliding bolt (4), and manual tightening is achieved through the tightening heads (16). A washer (15) is sleeved on the third sliding bolt (6).

7. The portable brake disc DTV measuring device according to claim 1, characterized in that: The first support plate (2) and the second support plate (5) are threadedly connected by a fixing bolt (3).

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