Brake shoe clearance protection device of disc brake

Abstract

The utility model relates to the technical field of brakes, and discloses a disc brake shoe clearance protection device which comprises a brake disc, a brake caliper is arranged on one side of the outer wall of the brake disc, an oil feeding pipe is fixedly connected to the interior of the brake caliper, and a piston rod is fixedly connected to one end of the oil feeding pipe. The output end of the piston rod is fixedly connected with a brake pad, the outer wall of the piston rod is fixedly connected to the interior of the brake caliper, a brake pad is slidably connected to the interior of the brake pad, the outer wall of the brake pad is slidably connected to the interior of the brake caliper, and a protection assembly is arranged in the brake pad. According to the utility model, the reduction of the braking performance caused by excessive abrasion or abnormal movement of the brake pad is effectively avoided, the braking safety is improved, in addition, other key parts for braking are protected through accurate clearance control, and the service life of the brake is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake, especially a disc brake shoe gap protection device. BACKGROUND

[0002] With the wide application of mine mechanization operation, the brake system of mine machine as its important safety guarantee part, its stability of performance directly influences operation safety and operating efficiency. Especially in the complex environment such as mine, brake system needs to cope with frequent and high intensity use requirement, therefore, how to guarantee the long-term stability and safety of brake system becomes a technical problem to be solved urgently.

[0003] The traditional disc brake shoe gap protection device is mainly used to ensure that the brake shoe and the brake disc in the brake system maintain proper gap. The device prevents excessive wear of the brake shoe by monitoring and adjusting the wear state of the brake shoe, leading to poor contact or overheating with the brake disc, thereby ensuring the stability and safety of the brake system. Its working principle usually includes sensor detecting the gap between the brake shoe and the disc, and automatically adjusting or alarming through mechanical or electronic means to ensure that the braking effect can maintain the best state under different working conditions.

[0004] The existing brake shoe gap protection device generally relies on manual inspection or simple sensor monitoring of the change of the gap, and usually has the problem of not timely response or difficult to reflect the wear condition in real time. In the process of driving or long time use, it is difficult to timely find the brake pad excessive wear or abnormal movement caused by the decline of braking performance. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a disc brake shoe gap protection device, which aims to improve the existing brake shoe gap protection device and solve the problem of not timely response or difficult to reflect the wear condition in real time.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a disc brake shoe gap protection device, comprising a brake disc, a brake caliper is arranged on one side of the outer wall of the brake disc, an oil supply pipe is fixedly connected in the inside of the brake caliper, a piston rod is fixedly connected at one end of the oil supply pipe, a brake pad is fixedly connected at the output end of the piston rod, the outer wall of the piston rod is fixedly connected in the inside of the brake caliper, a brake pad is slidably connected in the inside of the brake pad, the outer wall of the brake pad is slidably connected in the inside of the brake caliper, a protection assembly is arranged in the inside of the brake pad, the protection assembly is used for detecting the position of the brake pad, a reset assembly is arranged in the inside of the brake pad, and the reset assembly is used for driving the brake pad to reset.

[0007] The protection assembly comprises a displacement sensor, an outer wall of the displacement sensor is fixedly connected to the inside of the brake pad, one end of the displacement sensor is attached to the upper surface of the brake pad, and the inside of the brake caliper is provided with an alarm on one side.

[0008] Further, the reset assembly comprises a telescopic rod, one end of the telescopic rod is fixedly connected to the inside of the brake pad, and an outer wall of the telescopic rod is sleeved with a spring one.

[0009] Further, the outer wall of the brake caliper is fixedly connected with an extension plate on both sides, a sliding seat is slidingly connected to the inside of the extension plate, a cleaning brush is fixedly connected to one side of the outer wall of the sliding seat, a propelling assembly is arranged in the sliding seat, and the propelling assembly is used to move the cleaning brush towards the brake disc.

[0010] Further, the propelling assembly comprises a sliding rod, one end of the sliding rod is fixedly connected to the inside of the sliding seat, an outer wall of the sliding rod is sleeved with a spring two, and the other end of the sliding rod is fixedly connected with a limiting plate.

[0011] Further, one end of the telescopic rod is fixedly connected to the inside of the brake pad, and the telescopic rod is used to guide the telescopic movement of the spring one.

[0012] Further, one end of the spring one is fixedly connected to the inside of the brake pad, and the other end of the spring one is fixedly connected to the inside of the brake pad.

[0013] Further, the outer wall of the sliding rod is slidingly connected to the inside of the extension plate, and the sliding rod is used to guide the telescopic movement.

[0014] Further, one end of the spring two is fixedly connected to the inside of the sliding seat, and the other end of the spring two is fixedly connected to the inside of the extension plate.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1、 in the utility model, through accurate control brake pad's movement, utilize displacement sensor real -time monitoring brake pad's wear condition, when brake pad's moving distance exceeds setting value, can start alarm in time, remind driver or maintenance personnel to handle, effectively avoid brake pad because excessive wear or unusual movement and lead to braking performance decline, improved braking safety, in addition, through accurate gap control, protected other key parts of braking, prolonged the service life of brake,

[0017] 2. The utility model discloses, through set up extension board and spring no. 2, make the sliding seat can drive the clean brush to the outer wall of brake disc and clean in the process of brake disc rotation, effectively prevent the brake disc outer wall accumulation sundries, thereby avoid the influence of brake disc surface pollution to brake effect and brake pad, not only improved the brake performance, also reduced the brake component wear and tear due to the pollutant, further prolong the service life of brake. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A disc brake shoe gap protection device three-dimensional structure schematic diagram is provided for the utility model;

[0019] Figure 2 A brake caliper one side structure schematic diagram is provided for the utility model disc brake shoe gap protection device;

[0020] Figure 3 A brake caliper inner side structure schematic diagram is provided for the utility model disc brake shoe gap protection device;

[0021] Figure 4 A brake pad one side structure schematic diagram is provided for the utility model disc brake shoe gap protection device;

[0022] Figure 5 An extension board internal structure schematic diagram is provided for the utility model disc brake shoe gap protection device.

[0023] Legend:

[0024] 1, brake disc, 2, brake caliper, 3, alarm, 4, oil pipe, 5, piston rod, 6, brake pad, 7, displacement sensor, 8, brake pad, 9, telescopic rod, 10, spring no. 1, 11, extension board, 12, sliding seat, 13, clean brush, 14, slide rod, 15, spring no. 2, 16, limit plate. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] Reference Figure 1 - Figure 4The utility model provides a kind of embodiment: a disc brake shoe gap protection device, brake disc 1 is provided with brake caliper 2 on the outer wall one side of brake disc 1, brake caliper 2 is fixedly connected with oil supply pipe 4 in the inside, one end of oil supply pipe 4 is fixedly connected with piston rod 5, the output of piston rod 5 is fixedly connected with brake pad 6, the outer wall of piston rod 5 is fixedly connected in the inside of brake caliper 2, brake pad 6 is slidably connected with brake pad 8 in the inside, the outer wall of brake pad 6 is slidably connected in the inside of brake caliper 2, protection assembly is provided in the inside of brake pad 6, protection assembly is used to detect the position of brake pad 8, reset assembly is provided in the inside of brake pad 8, reset assembly is used to drive brake pad 8 reset;

[0027] Protection assembly includes displacement sensor 7, the outer wall of displacement sensor 7 is fixedly connected in the inside of brake pad 6, one end of displacement sensor 7 is attached on the upper surface of brake pad 8, alarm 3 is provided on the inside one side of brake caliper 2, reset assembly includes telescopic link 9, one end of telescopic link 9 is fixedly connected in the inside of brake pad 8, spring one 10 is sleeved on the outer wall of telescopic link 9.

[0028] Specifically, when driver steps on brake pedal, mine machine hydraulic pressure is delivered to the inside of piston rod 5 by oil supply pipe 4, the pressure of oil liquid will push the output of piston rod 5, in turn push brake pad 8 in brake caliper 2 inside direction to brake disc 1, when brake pad 8 is contacted with brake disc 1, friction is generated, realizes brake effect, during the contact of brake pad 8 and brake disc 1, brake disc 1 provides support effect, makes brake pad 8 slide in the inside of brake pad 6, to drive spring one 10 to contract, in order to monitor the movement of brake pad 8, displacement sensor 7 is arranged in brake, and the moving distance of brake pad 8 is recorded in real time, at this time, displacement sensor 7 can accurately monitor the working state of brake pad 8, if the moving distance of brake pad 8 exceeds the preset range, brake pad 8 can have been excessively worn or abnormal movement, leading to brake effect decline or brake pad 8 damage, for this, alarm 3 will be automatically started and alarm, remind driver or maintenance personnel to check brake as soon as possible, timely maintenance measures are taken, driver can handle the problem of excessive wear or abnormality of brake pad 8 in time, avoid brake pad 8 excessive wear leading to brake performance deficiency, to improve driving safety, can effectively prolong the service life of brake, reduce the risk of sudden failure.

[0029] Reference Figure 1 、 Figure 2 And Figure 5The outer wall of the brake caliper 2 is fixedly connected with an extension plate 11 on both sides, the inside of the extension plate 11 is slidably connected with a sliding seat 12, the outer wall of the sliding seat 12 is fixedly connected with a cleaning brush 13 on one side, the inside of the sliding seat 12 is provided with a propelling assembly, the propelling assembly is used to push the cleaning brush 13 to move to the brake disc 1, the propelling assembly comprises a sliding rod 14, one end of the sliding rod 14 is fixedly connected in the inside of the sliding seat 12, the outer wall of the sliding rod 14 is sleeved with a spring 15, the other end of the sliding rod 14 is fixedly connected with a limiting plate 16, one end of the telescopic rod 9 is fixedly connected in the inside of the brake pad 6, the telescopic rod 9 is used to guide the telescopic movement of the spring 10, one end of the spring 10 is fixedly connected in the inside of the brake pad 8, the other end of the spring 10 is fixedly connected in the inside of the brake pad 6, the outer wall of the sliding rod 14 is slidably connected in the inside of the extension plate 11, the sliding rod 14 is used to guide the telescopic movement of the spring 15, one end of the spring 15 is fixedly connected in the inside of the sliding seat 12, the other end of the spring 15 is fixedly connected in the inside of the extension plate 11.

[0030] Specifically, in the rotating process of the brake disc 1, the extension plate 11 pushes the sliding seat 12 to slide in its inside through the action of the spring 15, and then makes the sliding seat 12 drive the cleaning brush 13 to adhere to the outer wall of the brake disc 1, with the rotation of the brake disc 1, the cleaning brush 13 can continuously and effectively clean the outer wall of the brake disc 1, remove the sundries such as dust, soil, oil stains and the like attached to the surface of the brake disc 1, if the sundries are not cleaned in time, not only the heat dissipation performance of the brake disc 1 will be affected, but also the friction surface of the brake pad 8 will be adversely affected, the braking effect is reduced, in the cleaning process, the telescopic movement of the spring 15 is guided by the sliding rod 14, it is ensured that the spring 15 will not deviate or be damaged due to excessive telescopic movement, the stability and reliability of cleaning are ensured, at the same time, the movement range of the sliding seat 12 is controlled by the limiting plate 16, it is avoided that the sliding seat 12 moves excessively, thereby adversely affecting the normal operation of the mining machine, the limiting plate 16 can effectively limit the movement range of the sliding seat 12, ensure the stability of the cleaning function, and avoid the interference to the operation of the mining machine in the cleaning process, not only can ensure that the outer wall of the brake disc 1 always remains clean, but also can improve the overall performance of the brake, prolong the service life of the brake pad 8 and the brake disc 1, and ensure the long-term stable operation of the brake system.

[0031] Working principle: when the mining machine brakes, oil will be sent to the inside of the piston rod 5 through the oil pipe 4, and then the output end of the piston rod 5 is pushed, and then the brake pad 8 is pushed in the inside of the brake caliper 2 through the output end of the piston rod 5, so as to drive the brake pad 8 to adhere to the brake disc 1, at this time, the brake pad 8 will slide in the brake pad 6 through the support of the brake disc 1, so as to make the spring 10 contract, at this time, the displacement of the brake pad 8 is recorded by the displacement sensor 7, the specific model of the displacement sensor 7 is: Micro-Epsilon ILD 2400-10, when the displacement of the brake pad 8 is too long, it means that the brake pad 8 is seriously worn or the brake pad 8 moves abnormally, and then the alarm 3 is started to alarm, which is convenient for timely processing.

[0032] In addition, in the process of rotating the brake disc 1, the extension plate 11 on both sides of the brake caliper 2 will be passed, at this time, the sliding seat 12 is pushed to slide in the extension plate 11 by the spring 15, so that the sliding seat 12 can drive the cleaning brush 13 to adhere to the outer wall of the brake disc 1, and then the outer wall of the brake disc 1 is cleaned, so as to avoid the existence of sundries on the outer wall of the brake disc 1, which will affect the brake and the brake pad 8, in this process, the extension of the spring 15 can be guided by the slide rod 14 to avoid the offset and damage of the spring 15, and finally the movement of the sliding seat 12 is limited by the limiting plate 16, so as to avoid the excessive movement of the sliding seat 12 affecting the operation of the mining machine.

[0033] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A disc brake shoe clearance protection device comprising a brake disc (1), characterized in that: The outer wall side of the brake disc (1) is provided with a brake caliper (2), the inside of the brake caliper (2) is fixedly connected with an oil feeding pipe (4), one end of the oil feeding pipe (4) is fixedly connected with a piston rod (5), the output end of the piston rod (5) is fixedly connected with a brake pad (6), the outer wall of the piston rod (5) is fixedly connected in the inside of the brake caliper (2), the inside of the brake pad (6) is slidably connected with a brake pad (8), the outer wall of the brake pad (6) is slidably connected in the inside of the brake caliper (2), the inside of the brake pad (6) is provided with a protection assembly, the protection assembly is used for detecting the position of the brake pad (8), the inside of the brake pad (8) is provided with a reset assembly, and the reset assembly is used for driving the brake pad (8) to reset. The protection assembly comprises a displacement sensor (7), the outer wall of the displacement sensor (7) is fixedly connected in the inside of the brake pad (6), one end of the displacement sensor (7) is attached to the upper surface of the brake pad (8), and the inside of the brake caliper (2) is provided with an alarm (3) on one side.

2. A disc brake shoe gap protection device according to claim 1, characterised in that: The reset assembly comprises a telescopic rod (9), one end of the telescopic rod (9) is fixedly connected in the inside of the brake pad (8), and the outer wall of the telescopic rod (9) is sleeved with a spring (10).

3. A disc brake shoe gap protection device according to claim 1, wherein: The outer wall of the brake caliper (2) is fixedly connected with an extension plate (11) on both sides, the inside of the extension plate (11) is slidably connected with a sliding seat (12), the outer wall of the sliding seat (12) is fixedly connected with a cleaning brush (13) on one side, the inside of the sliding seat (12) is provided with a propelling assembly, and the propelling assembly is used for driving the cleaning brush (13) to move towards the brake disc (1).

4. A disc brake shoe gap protection device according to claim 3, characterised in that: The propelling assembly comprises a slide rod (14), one end of the slide rod (14) is fixedly connected in the inside of the sliding seat (12), the outer wall of the slide rod (14) is sleeved with a spring (15), and the other end of the slide rod (14) is fixedly connected with a limiting plate (16).

5. A disc brake shoe gap protection device according to claim 2, characterised in that: One end of the telescopic rod (9) is fixedly connected in the inside of the brake pad (6), and the telescopic rod (9) is used for guiding the expansion and contraction of the spring (10).

6. A disc brake shoe gap protection device according to claim 2, wherein: One end of the spring (10) is fixedly connected in the inside of the brake pad (8), and the other end of the spring (10) is fixedly connected in the inside of the brake pad (6).

7. A disc brake shoe gap protection device according to claim 4, wherein: The outer wall of the slide rod (14) is slidably connected in the inside of the extension plate (11), and the slide rod (14) is used for guiding the expansion and contraction of the spring (15).

8. A disc brake shoe gap protection device according to claim 4, wherein: One end of the spring (15) is fixedly connected in the inside of the sliding seat (12), and the other end of the spring (15) is fixedly connected in the inside of the extension plate (11).

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