Intelligent detection device for automobile brake pad

Abstract

The present application relates to the technical field of automobile brake pad detection, and particularly relates to an intelligent detection equipment for automobile brake pad. The prior art does not detect according to the problems faced in the actual use scene of the automobile brake pad, and the detection function is single and the practicability is low. The technical implementation scheme of the present application is: an intelligent detection equipment for automobile brake pad, comprising a mounting frame and a C-shaped support; the mounting frame is fixedly connected with the C-shaped support; further comprising a connecting block one and a water pipe; the C-shaped support is provided with the connecting block one; the connecting block one is fixedly connected with a plurality of water pipes symmetrically distributed about the brake disc. The present application simulates the influence of the attachment of water and dust on the braking effect of the brake pad in the actual use scene of the brake pad, and obtains the actual use performance of the brake pad. The braking effect of the brake pad can be intuitively presented by the coverage area of water and dust on the surface of the brake disc, and the detection result is comprehensive and actual.

Description

Technical Field

[0001] This invention relates to the field of automotive brake pad testing technology, and more particularly to an intelligent testing device for automotive brake pads. Background Technology

[0002] Automotive brake pads: Automotive brake pads, also called automotive brake linings, are friction materials fixed to the brake drum or brake disc that rotates with the wheel. The friction linings and friction pads bear external pressure and generate friction to achieve the purpose of vehicle deceleration. In the testing of automotive brake pads, the surface of the brake pads is mostly polished manually with a hand-held grinder, and then the polished brake pads are tested with a special testing instrument to achieve the wear resistance test of the brake pads.

[0003] Current brake pad testing technologies do not address the problems encountered in actual use scenarios of automotive brake pads. For example, when a car is in motion, water on the road can adhere to the brake discs and pads, wetting them. This water may form a lubricating layer during braking, reducing the friction between the brake pads and discs and thus decreasing braking performance. Similarly, dust on the road can adhere to the surfaces of the brake pads and discs, forming a layer of contaminants that reduce the effective friction between them, leading to decreased braking performance. However, existing brake pad testing technologies primarily test the wear resistance of brake pads, resulting in limited functionality and low practicality. Summary of the Invention

[0004] To overcome the shortcomings of the problems mentioned in the background, the present invention provides an intelligent detection device for automotive brake pads.

[0005] The technical implementation scheme of the present invention is as follows: an intelligent testing device for automotive brake pads, comprising a mounting bracket and a C-shaped bracket; the mounting bracket is fixedly connected to the C-shaped bracket; it also includes a first connecting block, a water pipe, a second connecting block, and a powder pipe; the first connecting block is mounted on the C-shaped bracket; the second connecting block is mounted on the C-shaped bracket; the first connecting block is fixedly connected to a plurality of water pipes symmetrically distributed about the brake disc; each water pipe has a plurality of water spray grooves, and the water spray grooves face the brake disc; the second connecting block is fixedly connected to and connected to a plurality of powder pipes symmetrically distributed about the brake disc; each powder pipe has a plurality of powder spray grooves, and the powder spray grooves face the brake disc.

[0006] More preferably, the water pipe has a built-in water flow regulator, which is used to adjust the state of the water flow sprayed from the spray tank.

[0007] More preferably, the connecting block 2 and the powder tube are located close to the brake caliper.

[0008] More preferably, the powder sprayed from the powder spraying trough on the powder tube is a conspicuous red powder.

[0009] More preferably, the water pipe is inclined to the side facing the brake disc.

[0010] More preferably, it also includes a circular roller; each powder tube is rotatably connected to a circular roller.

[0011] More preferably, the aperture of the powder spraying groove gradually decreases from the end near the second connecting block to the end away from the second connecting block.

[0012] More preferably, the diameter of the roller gradually increases from the end near the second connecting block to the end away from the second connecting block.

[0013] More preferably, the roller is made of rubber.

[0014] More preferably, it also includes a water-blocking cover; all water pipes are detachably connected to a water-blocking cover, and the water-blocking cover is connected to a connecting block, and there is a narrow gap between the water-blocking cover and the brake disc; the connecting block is provided with a drain outlet; the water-blocking cover is provided with several guide channels, and all guide channels are connected to the drain outlet.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention simulates the effect of water and dust adhesion on the braking effect of brake pads in actual use scenarios to obtain the actual performance of brake pads. Moreover, the braking effect of brake pads can be intuitively presented by the coverage area of ​​water and dust on the surface of the brake disc. The test results are comprehensive and practical, solving the problems of single test function and low practicality of the prior art.

[0016] When powder is sprayed onto the surface of the brake disc from the powder spraying trough, the amount of powder on the end of the brake disc closer to the connecting block 2 is greater than that on the end farther away from the connecting block 2. That is, the amount of powder on the outer ring of the brake disc is much greater than that on the inner ring. In this way, when the powder on the outer ring of the brake disc comes into contact with the brake pads, a sufficient amount of powder can adhere to the brake pads, ensuring that the brake pads can be properly tested for braking performance due to dust, thus achieving the testing effect. Furthermore, the inner ring of the brake disc does not come into contact with the brake pads, requiring only a small amount of powder, thus saving powder.

[0017] When the powder sprayed from the powder spraying trough is spread evenly on the surface of the brake disc by the roller, the powder in the inner ring of the brake disc will move from narrow to wide in the gap between the roller and the brake disc when it is squeezed. This causes the powder to tend to move towards one end of the connecting block. The powder in the inner ring of the brake disc replenishes the outer ring of the brake disc, ensuring that the brake pads can be covered with a sufficient amount of powder.

[0018] This invention uses a water-blocking cover to confine the water sprayed from the water jet within the area covered by the cover, and discharges excess water through a guide channel and a drain outlet. Furthermore, due to the narrow gap between the water-blocking cover and the brake disc, only a small amount of water remains on the surface of the brake disc during its rotation, ensuring that the brake disc surface has the ability to improve powder adhesion. While achieving a cleaning effect, it eliminates the need for repeated steps such as water droplet drying and moisture replenishment, saving time and improving testing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure disclosed in this invention;

[0020] Figure 2 This is a partial structural schematic diagram disclosed in this invention;

[0021] Figure 3 This is a schematic diagram of the combined structure of the water pipe, powder pipe and brake disc disclosed in this invention;

[0022] Figure 4 This is a schematic diagram of the combined structure of the connecting block 2 and the powder-passing pipe disclosed in this invention;

[0023] Figure 5 This is a schematic diagram of the combined structure of the connecting block and the water pipe disclosed in this invention;

[0024] Figure 6 This is a cross-sectional view of the structure of the connecting block 1 disclosed in this invention;

[0025] Figure 7 This is a schematic diagram of the structure of the water-blocking cover disclosed in this invention;

[0026] Figure 8 This is a schematic diagram of the combined structure of the brake caliper and brake pads disclosed in this invention.

[0027] The above-mentioned attached drawings include the following reference numerals: 1-mounting bracket, 2-C-shaped bracket, 5-connecting block one, 6-water pipe, 7-connecting block two, 8-powder pipe, 101-round roller, 201-water barrier, 001-brake disc, 002-brake caliper, 003-brake pad, 5a-drain outlet, 6a-water spray trough, 8a-powder spray trough, 201a-guide channel. Detailed Implementation

[0028] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0029] Example 1

[0030] A smart testing device for automotive brake pads, such as Figures 1-8 As shown, it includes a mounting bracket 1 and a C-shaped bracket 2; the mounting bracket 1 is bolted to the C-shaped bracket 2;

[0031] It also includes a connecting block 5, a water pipe 6, a connecting block 7, and a powder pipe 8; the C-shaped bracket 2 is equipped with the connecting block 5; the C-shaped bracket 2 is equipped with the connecting block 7; the connecting block 5 is fixedly connected to two water pipes 6 that are symmetrically distributed about the brake disc 001; each water pipe 6 has several water spray grooves 6a, and the water spray grooves 6a face the brake disc 001; the connecting block 7 is fixedly connected to and connects to two powder pipes 8 that are symmetrically distributed about the brake disc 001; each powder pipe 8 has several powder spray grooves 8a, and the powder spray grooves 8a face the brake disc 001.

[0032] The water pipe 6 has a built-in water flow regulator, which is used to adjust the state of the water flow sprayed from the water jet 6a.

[0033] The connecting block 7 and the powder tube 8 are close to the brake caliper 002. The present invention makes the initial position of the powder tube 8 close to the brake caliper 002 and the brake pad 003, so that the powder is sprayed out and covers the surface of the brake disc 001 before the water on the brake disc 001 is shaken off.

[0034] The powder sprayed from the powder spraying groove 8a on the powder pipe 8 is a conspicuous red powder, which can more intuitively show the braking effect of the brake pad 003 on the brake disc 001.

[0035] The water pipe 6 is inclined to the brake disc 001 on the side facing the brake disc 001, which reduces the impact force of the water flow on the brake disc 001 and increases the amount of water adhering, thereby increasing the amount of powder adhering.

[0036] The specific workings of this invention are as follows:

[0037] Connect water pipe 6 to the water conveying equipment; connect connecting block 2 7 to the powder conveying equipment;

[0038] First, the brake disc 001 is manually placed in the middle area of ​​the C-shaped bracket 2. Then, the brake disc 001 is supported and rotated by an external support and rotation device. Next, the brake pads 003 are mounted on the brake caliper 002. Figure 8 As shown, the brake caliper 002 is then mounted on the brake disc 001, and connected to the brake caliper 002 via an external hydraulic device. At this time, the brake disc 001 and brake caliper 002 are in the following states: Figure 1 As shown, the brake caliper 002 and brake pad 003 can be driven by hydraulic equipment to brake the brake disc 001 normally, so as to test the braking performance of the brake pad 003 under ideal conditions.

[0039] Subsequently, the brake disc 001 is rotated counterclockwise from a front-to-back perspective by the external support and rotation device. At the same time, the water supply device is controlled to inject water into the water pipe 6, and then spray it out from the water spray tank 6a onto the brake disc 001. The water sprayed out from the water spray tank 6a first cleans the surface of the brake disc 001 for subsequent testing.

[0040] Brake pads 003 not only adhere to the brake disc 001 during vehicle braking, but also exhibit a floating separation between the brake disc 001 and brake pads 003 during normal vehicle operation, resulting in contact and friction between the brake pads 003 and the brake disc 001. During the cleaning process, a large amount of water adheres to the brake disc 001. When the brake disc 001 passes over the brake pads 003, the water on the brake disc 001 adheres to and wets the brake pads 003. At this point, the brake pads 003 are wetted by the water flow. Then, an external support and rotation device drives the brake disc 001 to rotate counterclockwise from a front-to-back perspective. When the brake disc 001 reaches a certain speed, a hydraulic device drives the brake calipers 002 and brake pads 003 to brake the brake disc 001. Simultaneously, the powder conveying equipment is controlled via a connection... Block 2 7 inputs powder into the powder pipe 8 and sprays it onto the surface of the brake disc 001 through the powder spraying groove 8a, so that the powder adheres to the surface of the brake disc 001. When the brake disc 001 is fully braked, the powder spraying groove 8a stops spraying powder. At this time, by observing the area of ​​powder adhering to the surface of the brake disc 001, the braking performance data of the brake pad 003 can be obtained intuitively. If the powder stays in the area where the powder pipe 8 is located, it means that the braking performance of the brake pad 003 is excellent. If the powder slightly exceeds the area where the powder pipe 8 is located, it means that the braking performance of the brake pad 003 is good. If the powder greatly exceeds the area where the powder pipe 8 is located, it means that the braking performance of the brake pad 003 is poor. In this way, the braking effect of the brake pad 003 is tested when it is wetted by water, and the influence of water on the braking effect of the brake pad 003 is obtained in a specific and intuitive way.

[0041] During the above process, the water sprayed from the water spray tank 6a not only wets the brake pads 003, but also wets the brake disc 001, leaving moisture on the surface of the brake disc 001. This moisture can enhance the adhesion of the powder, ensuring that the powder can be successfully adhered to the surface of the brake disc 001, thus ensuring the normal progress of the testing work.

[0042] It is important to note that after the water jet from the water spray tank 6a cleans the surface of the brake disc 001, a large number of water droplets will remain on the surface of the brake disc 001. These water droplets are fluid, and when the brake disc 001 rotates for testing, the water droplets on the surface of the brake disc 001 will flow to the area where the powder spray tank 8a is located, washing away the powder sprayed from the powder spray tank 8a, causing powder loss. This results in a large difference between the initial and final amount of powder adhering, affecting the judgment of the braking performance of the brake pad 003. Therefore, after cleaning, the water jet from the water spray tank 6a is stopped, and the brake disc 001 is allowed to idle, centrifugally throwing off the large number of water droplets remaining on the surface. However, after the water droplets are thrown off the surface of the brake disc 001, there will be a lack of moisture on the surface of the brake disc 001, with some areas having no moisture residue, making it difficult for powder to adhere, thus affecting the judgment of the braking performance of the brake pad 003.

[0043] Therefore, before the brake disc 001 rotates to the required speed for testing, the water flow from the spray channel 6a is adjusted by the regulator built into the water pipe 6, so that the spray channel 6a sprays water mist to replenish the surface of the brake disc 001. This ensures that the brake disc 001 still has the effect of improving the adhesion of the powder. In addition, the small amount of water mist does not have fluidity, so it will not wash away the powder sprayed from the powder spray channel 8a, causing powder loss. This results in a large difference between the initial and final amount of powder adhesion, affecting the judgment of the braking performance of the brake pad 003.

[0044] After testing the effect of water on the braking performance of brake pads 003, the brake disc 001 is controlled to continue rotating. At the same time, the state of the water flow sprayed from the water spray channel 6a is adjusted by the regulator built into the water pipe 6, so that the water spray channel 6a sprays water to wash the surface of the brake disc 001 and wash away the powder on the surface of the brake disc 001. Then, after the water droplets on the surface of the brake disc 001 are shaken dry, the water spray channel 6a is adjusted to spray water mist according to the above steps to replenish the moisture on the surface of the brake disc 001. After replenishment is completed, the water mist spraying is stopped, completing the preparation work for testing the braking performance of brake pads 003 through dust. In addition, the present invention uses powder sprayed from the powder spraying channel 8a to replace dust.

[0045] Subsequently, the brake disc 001 is slowly rotated, and simultaneously, powder is sprayed out through the powder spraying trough 8a, causing powder to re-adhere to the surface of the brake disc 001. Then, the brake disc 001 is rotated clockwise from a front-to-back perspective, causing the powder on the surface of the brake disc 001 to contact and adhere to the brake pads 003. When the brake disc 001 reaches a certain speed, the brake caliper 002 and brake pads 003 are driven by hydraulic equipment to brake the brake disc 001. Simultaneously, water mist is sprayed onto the surface of the brake disc 001 through the water spraying trough 6a, causing the water mist to contact the red powder on the surface of the brake disc 001, changing the powder from a normal powdery state to a slightly moist slurry state. When the brake disc 001 is fully braked... When the water mist is stopped, the braking performance data of the brake pad 003 can be intuitively obtained by observing the area covered by the powder on the surface of the brake disc 001. This allows for the detection of the braking effect of the brake pad 003 when dust is present, providing a specific and intuitive understanding of the impact of dust on the braking effect of the brake pad 003. Thus, this invention simulates the impact of water and dust on the braking effect of the brake pad 003 in actual use scenarios to determine the actual performance of the brake pad 003. Furthermore, the braking effect of the brake pad 003 can be intuitively presented through the coverage area of ​​water and dust on the surface of the brake disc 001. The test results are comprehensive and practical, solving the problems of limited testing functions and low practicality in existing technologies.

[0046] Example 2

[0047] Based on Example 1, such as Figure 1 and Figure 4 As shown, it also includes a circular roller 101; each powder tube 8 is rotatably connected to a circular roller 101.

[0048] The aperture of the powder spraying tank 8a gradually decreases from the end near the connecting block 2 7 to the end away from the connecting block 2 7.

[0049] The diameter of the circular roller 101 gradually increases from the end near the connecting block 2 7 to the end away from the connecting block 2 7.

[0050] The roller 101 is made of rubber, which makes it less likely for powder to adhere to the roller 101, thereby reducing the amount of powder adhering to the roller 101.

[0051] The specific workings of this invention are as follows:

[0052] When powder is sprayed from the powder spraying trough 8a, the present invention uses a roller 101 to spread the powder sprayed from the powder spraying trough 8a evenly on the surface of the brake disc 001, improving the compactness of the powder and preventing powder from falling off. In Example 1, the braking performance of the brake pad 003 is tested by dust. During the process of the powder on the surface of the brake disc 001 adhering to the brake pad 003, however, as Figure 1 As shown, the brake caliper 002 and brake pad 003 only cover the outer ring of the brake disc 001. Therefore, only the powder on the outer ring of the brake disc 001 will come into contact with the brake pad 003 and adhere to it. In order to ensure that the brake pad 003 can adhere to a sufficient amount of powder and ensure that the brake pad 003 can normally perform the test of the braking performance of the brake pad 003 by dust, so as to achieve the test effect;

[0053] In this invention, the aperture of the powder spraying groove 8a is set to gradually decrease from the end near the connecting block 7 to the end away from the connecting block 7. Thus, when the powder spraying groove 8a sprays powder onto the surface of the brake disc 001, the powder on the end of the brake disc 001 near the connecting block 7 will be more than that on the end away from the connecting block 7. That is, the powder on the outer ring of the brake disc 001 will be much more than that on the inner ring. Therefore, when the powder on the outer ring of the brake disc 001 comes into contact with the brake pad 003, sufficient powder can adhere to the brake pad 003, ensuring that the brake pad 003 can normally perform the dust-induced braking performance testing, thus achieving the testing effect. Furthermore, the inner ring of the brake disc 001 will not come into contact with the brake pad 003, requiring only a small amount of powder, thus saving powder.

[0054] However, when the brake disc 001 rotates, the powder on the surface of the brake disc 001 will be centrifugally thrown out, resulting in the amount of powder adhering to the surface of the brake disc 001 being less than the amount of powder sprayed by the powder spraying groove 8a. This will also lead to insufficient powder on the outer ring of the brake disc 001, making it impossible to ensure that the brake pad 003 is adhered with a sufficient amount of powder.

[0055] Therefore, in this invention, the diameter of the roller 101 is set to gradually increase from the end near the connecting block 7 to the end away from the connecting block 7. The gap between the roller 101 and the brake disc 001 will gradually decrease from the end near the connecting block 7 to the end away from the connecting block 7. In this way, when the powder sprayed from the powder spraying trough 8a is spread evenly on the surface of the brake disc 001 through the roller 101, the powder in the inner ring of the brake disc 001 will move from narrow to wide in the gap between the roller 101 and the brake disc 001 when it is squeezed. This makes the powder tend to move towards the end near the connecting block 7. The powder in the inner ring of the brake disc 001 replenishes the outer ring of the brake disc 001, ensuring that the brake pad 003 can be attached with a sufficient amount of powder.

[0056] Example 3

[0057] Based on Example 2, such as Figure 5-7 As shown, it also includes a water-blocking cover 201; all the water pipes 6 are detachably connected to a water-blocking cover 201, and the water-blocking cover 201 is connected to the connecting block 5, and there is a narrow gap between the water-blocking cover 201 and the brake disc 001; the connecting block 5 is provided with a drain outlet 5a; the water-blocking cover 201 is provided with several guide channels 201a, and all the guide channels 201a are connected to the drain outlet 5a.

[0058] The specific workings of this invention are as follows:

[0059] In Example 1, between the time the test of the effect of water on the braking effect of brake pad 003 is completed and the preparation work for testing the braking performance of brake pad 003 by dust is completed, many steps are required, such as cleaning brake disc 001, shaking off water droplets and replenishing water. The whole process is cumbersome.

[0060] Therefore, the present invention restricts the water sprayed from the water spraying channel 6a to the area where the water barrier 201 is located, and discharges the excess water through the guide channel 201a and the drain outlet 5a. Since there is a narrow gap between the water barrier 201 and the brake disc 001, only a small amount of water will remain on the surface of the brake disc 001 during the rotation of the brake disc 001, ensuring that the surface of the brake disc 001 has the ability to improve the adhesion of powder. While achieving the cleaning effect, it also eliminates the need for many steps such as shaking off water droplets and replenishing water, saving time and improving detection efficiency.

[0061] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. An intelligent testing device for automotive brake pads, comprising a mounting bracket (1) and a C-shaped bracket (2); the mounting bracket (1) is fixedly connected to the C-shaped bracket (2); characterized in that, It also includes a connecting block 1 (5), a water pipe (6), a connecting block 2 (7), and a powder pipe (8); the C-shaped bracket (2) is equipped with the connecting block 1 (5); the C-shaped bracket (2) is equipped with the connecting block 2 (7); the connecting block 1 (5) is fixedly connected to several water pipes (6) symmetrically distributed about the brake disc (001); each water pipe (6) has several water spray grooves (6a) and the water spray grooves (6a) face the brake disc (001); the connecting block 2 (7) is fixedly connected to and connected to several powder pipes (8) symmetrically distributed about the brake disc (001); each powder pipe (8) has several powder spray grooves (8a) and the powder spray grooves (8a) face the brake disc (001); The water pipe (6) is inclined to the side facing the brake disc (001); It also includes a circular roller (101); each powder tube (8) is rotatably connected to a circular roller (101); The aperture of the powder spraying groove (8a) gradually decreases from the end near the connecting block 2 (7) to the end away from the connecting block 2 (7); The diameter of the circular roller (101) gradually increases from the end near the connecting block 2 (7) to the end away from the connecting block 2 (7); It also includes a water barrier (201); all the water pipes (6) are detachably connected to a water barrier (201), and the water barrier (201) is connected to the connecting block (5), and there is a narrow gap between the water barrier (201) and the brake disc (001); the connecting block (5) has a drain outlet (5a); the water barrier (201) is provided with several guide channels (201a), and all the guide channels (201a) are connected to the drain outlet (5a).

2. The intelligent testing device for automotive brake pads according to claim 1, characterized in that, The water pipe (6) has a built-in water flow regulator, which is used to adjust the state of the water flow sprayed from the water jet (6a).

3. The intelligent testing device for automotive brake pads according to claim 1, characterized in that, Connecting block 2 (7) and powder tube (8) are close to the brake caliper (002).

4. An intelligent testing device for automotive brake pads according to any one of claims 1-3, characterized in that, The powder sprayed from the powder spraying trough (8a) on the powder pipe (8) is a conspicuous red powder.

5. The intelligent testing device for automotive brake pads according to claim 4, characterized in that, The circular roller (101) is made of rubber.

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