CN217328234U - Brake return piston device with automatic compensation function - Google Patents

Abstract

The utility model discloses a brake return piston device with automatic compensation function, which comprises a piston body, an inlet port, a guide rod and a brake caliper body; the piston body is clamped in the brake caliper body in a sliding mode, and an inlet port for brake fluid to enter is formed in the brake caliper body; the guide rod is clamped on the left side inside the brake caliper body in a sliding mode; further comprising: and the disc spring piece is arranged in the brake caliper body, is positioned between the disc spring adjusting nut and the piston body, and is clamped in the brake caliper body in a sliding manner. This stopper return piston device with automatic compensation function avoids the part of inside rubber material phenomenon of ageing to appear, realizes the effect of clearance automatic compensation and braking through setting up of dish spring adjusting nut and dish spring spare, realizes on the stopper of different specifications through setting up of rubber taper sleeve, monitors the leakage condition of inside through the stereo set.

Description

Brake return piston device with automatic compensation function

Technical Field

The utility model relates to a stopper technical field specifically is stopper return piston device with automatic compensation function.

Background

The brake is hydraulically controlled, the main parts comprise a brake disc, a brake caliper, an oil pipe and a piston, the piston inside the brake disc is pushed by brake fluid, the brake disc at the middle position is braked, and the deceleration function is realized, for example, the hydraulic disc brake which is convenient to disassemble and assemble and is disclosed as CN216279096U comprises the brake disc, a hydraulic cylinder and a brake fixing seat, wherein the brake disc is fixedly arranged on a hub, the hub and the brake disc are both movably connected with a vehicle axle through an axle, and the two sides of the brake disc are provided with brake calipers; the brake fixing seat is hollow and is arranged on a vehicle axle, the top of the brake fixing seat is provided with a mounting hole communicated with the inner cavity of the brake fixing seat, the bottom side of the brake fixing seat is provided with a hinging seat, a sliding frame is arranged in the brake fixing seat, and the end part of the sliding frame is connected with the hinging seat; the two brake calipers are connected to the hinged seat through a pivot, a friction plate is fixed on one side, close to the brake disc, of each brake caliper, and the friction plates can be in close contact with the brake disc when the brake calipers rotate. The utility model discloses a disc brake can make things convenient for quick realization vehicle brake's purpose, has ensured friction braking's effect, and braking efficiency is high, but this stopper is still problematic at the in-process that uses:

1. the caliper disc brake of the conventional engineering machinery has brake back pressure, a piston does not return after braking is finished, so that a brake pad cannot be separated from a brake disc, a large amount of friction heat is generated by continuous friction, the brake pad is quickly worn and burnt, the service life is shortened, a rubber sealing ring is seriously heated, the temperature cannot be reduced, the aging of a rubber part is aggravated, hydraulic oil leakage is easily generated, the brake failure and accidents are caused, the failure rate of the caliper disc brake is increased, and the safety coefficient of the wheel type engineering machinery is reduced;

2. the brake realizes the sealing function through the sealing ring, and the sealing ring is easy to age and leak oil when used for a long time and kept in a high-temperature environment, so that the braking effect is poor, and the internal leakage condition cannot be monitored;

3. dustproof rubber can keep apart the dust, and long-time piling up drops easily on the surface of brake disc, and the in-process that brakes appears the incomplete phenomenon of contact easily, and then leads to braking effect relatively poor.

We have therefore proposed a brake return piston device with an automatic compensation function in order to solve the problems set out above.

Disclosure of Invention

An object of the utility model is to provide a stopper return piston device with automatic compensation function to solve the phenomenon that appears leaking easily on the existing market that above-mentioned background art provided, can not monitor the condition of inside and the dust piles up the problem on dustproof rubber's surface easily.

In order to achieve the above object, the utility model provides a following technical scheme: the brake return piston device with the automatic compensation function comprises a piston body, an inlet, a guide rod and a brake caliper body;

the piston body is clamped in the brake caliper body in a sliding mode, and an inlet port for brake fluid to enter is formed in the brake caliper body;

the guide rod is clamped on the left side inside the brake caliper body in a sliding mode;

further comprising:

the disc spring piece is arranged inside the brake caliper body, is positioned between the disc spring adjusting nut and the piston body, and is clamped inside the brake caliper body in a sliding manner;

the two rectangular sealing rings are arranged on the inner side of the brake caliper body, and the rectangular sealing rings are mutually attached to the outer side of the piston body;

the rubber taper sleeve is arranged on the left side inside the brake caliper body, and a taper sleeve compression nut for extruding the rubber taper sleeve is arranged on the outer side of the rubber taper sleeve;

the radiator is arranged on the outer side of the brake caliper body, a dust ring for blocking dust is arranged on the right side of the inner portion of the brake caliper body, and an upper scraper blade and a lower scraper blade for pushing the dust are slidably clamped on the outer side of the dust ring.

Preferably, an O-ring for sealing is disposed on the left side of the inside of the brake caliper body, a winding column for winding the brake caliper body is connected to the upper bearing of the inside of the brake caliper body, a connection rope for rotating the winding column is disposed between the winding column and the piston body, the winding column 12 is pulled by the connection rope, and the winding column is wound on the fixing rope.

Preferably, the outside left and right sides of winding post all is provided with the fixed rope that carries out the pulling to last scraper blade, and the fixed rope of the left and right sides all twines in the outside of winding post to the winding opposite direction of the fixed rope of the left and right sides, stimulate last scraper blade through fixed rope, realize handling the dust on dust ring surface.

Preferably, the other end of the fixed rope is fixed on an upper scraper for processing dust, the upper scraper is connected with a lower scraper through a transmission rope, the sliding distance between the upper scraper and the lower scraper is the same, the upper scraper and the lower scraper move to scrape the dust, and the dust is prevented from falling onto the surface of the brake disc.

Preferably, the outside of rubber taper sleeve and taper sleeve gland nut's inboard are laminated each other to rubber taper sleeve is the slope structure all around, the inside of the stopper pincers body is provided with carries out absorbent sponge to brake fluid, and absorbs water the sponge and be provided with 2 groups to the draw-in groove of placing button and stereo set is seted up to the inside of the stopper pincers body, monitors the inside leakage condition through the state of stereo set, the discovery that can not be timely after avoiding the brake fluid to leak.

Preferably, the inside of draw-in groove is the slope structure all around, and the inside of draw-in groove is provided with button and stereo set to the button is located the top of stereo set, and button and stereo set are located same circuit moreover, promote the stereo set through the button, and then make the stereo set carry out work.

Preferably, the inside of the brake caliper body is provided with a rotating rod for pulling the water absorbing sponge, the rear side of the rotating rod is provided with a motor for rotating the rotating rod in a clearance manner, the output end of the motor is connected with the rotating rod, the rotating rod is rotated through the motor, and then the water of the water absorbing sponge is squeezed.

Preferably, a pull rope for enabling the water absorption sponge to move downwards is arranged between the upper portion of the left side and the upper portion of the right side of the rotating rod and the water absorption sponge, a return spring for enabling the water absorption sponge to move upwards is arranged between the water absorption sponge and the brake caliper body, the water absorption sponge is enabled to move upwards through the return spring, and the water absorption sponge adsorbs brake fluid.

Preferably, the sponge that absorbs water is located clearance department between the piston body and the stopper pincers body between the two, and the sponge that absorbs water of the left and right sides removes opposite direction to the diameter of the sponge that absorbs water is greater than the diameter of draw-in groove, realizes extrudeing the sponge that absorbs water through the draw-in groove, and then makes the absorbent brake fluid of the sponge that absorbs water directly act on with the button.

Preferably, the outer side of the brake caliper body is provided with a bolt for fixing the brake caliper body, the upper left corner of the brake caliper body is provided with an inlet through which brake fluid enters the brake caliper body, the outer side of the winding column is wound with a torsion spring for rotating the winding column in the opposite direction, the winding column is rotated by the torsion spring, and the piston body is pushed by the brake fluid entering the brake caliper body.

Compared with the prior art, the beneficial effects of the utility model are that: cool down the brake ball through the radiator, avoid the part of inside rubber material phenomenon of ageing to appear, realize the effect of clearance automatic compensation and braking through setting up of dish spring adjusting nut and dish spring spare, realize on the stopper of different specifications through setting up of rubber taper sleeve, energy saving and emission reduction's effect has fully been played, go up the scraper blade and slide on the surface of dust ring with lower scraper blade, the realization is handled the dust on dust ring surface, monitor the inside leakage condition through the stereo set, concrete content is as follows:

(1) the piston has an automatic compensation function, the guide rod is connected with the piston through the pretightening force of the quasi-sleeve clamping mechanism, so that the gap between the piston and a brake disc after the brake pad is automatically compensated by the piston, the piston has an automatic return function, a certain residual compression amount is reserved after the piston is pre-tightened by a disc spring, after the brake is finished, the piston automatically rebounds to a reserved compression amount (0.6-1mm rebound amount) to automatically separate the brake pad from the friction with the brake disc, the friction heat generated by the brake back pressure is avoided, a rubber cone sleeve is adopted, the piston guide rod plays a sealing role during pre-tightening, the sealing effect is better, the oil leakage rate is further reduced, the safety coefficient of the caliper disc brake is improved, the cone nut is adopted for pressing, the pretightening force of the guide rod is adjustable, the pretightening force can be adjusted according to the actual needs of products, and the versatility of the brake piston device with the automatic compensation function is improved, the brake can be arranged on the caliper disc brakes of different models, and the effects of energy conservation and emission reduction are fully achieved;

(2) the upper scraper and the lower scraper are pulled through the fixed ropes, and the dust on the surface of the dust ring is treated through the sliding of the upper scraper and the lower scraper, so that the phenomenon of accumulation of the dust is avoided, and the phenomenon of incomplete braking caused by the falling of the dust on the surface of a brake disc is avoided;

(3) brake fluid leaked by the water absorption sponge is absorbed, so that the brake fluid is prevented from flowing, the brake fluid in the water absorption sponge is extruded through the clamping groove, the weight of the brake fluid acts on the upper side of the button, the internal leakage condition is monitored through the sound state, and the brake effect of the brake is prevented from being poor;

(4) the heat inside the brake is radiated through the radiator, so that the phenomenon that the rubber part is aged due to overhigh heat inside the brake is avoided, and the service life of the rubber part is prolonged.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the main sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2 according to the present invention;

FIG. 4 is a schematic side sectional view of the dust ring of the present invention;

FIG. 5 is a schematic view of the connection structure of the rubber taper sleeve and the taper sleeve gland nut of the present invention;

FIG. 6 is a schematic view of the structure of the dust ring of the present invention;

fig. 7 is an enlarged schematic view of the structure at b in fig. 2 according to the present invention;

fig. 8 is an enlarged schematic view of the structure of fig. 2 at c according to the present invention.

In the figure: 1. a piston body; 2. a disc spring member; 3. a guide bar; 4. a disc spring adjusting nut; 5. a dust ring; 6. a rectangular sealing ring; 7. a brake caliper body; 8. a 0-shaped sealing ring; 9. a rubber taper sleeve; 10. the taper sleeve compresses the nut; 11. a bolt; 12. winding the column; 13. a torsion spring; 14. fixing a rope; 15. connecting ropes; 16. an upper scraper plate; 17. a drive rope; 18. a lower scraper; 19. a water-absorbing sponge; 20. a rotating rod; 21. A return spring; 22. a card slot; 23. a button; 24. pulling a rope; 25. sounding; 26. a motor; 27. an inlet port; 28. a heat sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: the brake return piston device with the automatic compensation function comprises a piston body 1, an inlet 27, a guide rod 3 and a brake caliper body 7;

the brake caliper comprises a piston body 1, a brake caliper body 7 and a brake pad, wherein the piston body 1 is slidably clamped in the brake caliper body 7, and an inlet 27 for brake fluid to enter is formed in the brake caliper body 7;

the guide rod 3 is clamped at the left side inside the brake caliper body 7 in a sliding manner;

further comprising: the disc spring piece 2 is arranged inside the brake caliper body 7, the disc spring piece 2 is positioned between the disc spring adjusting nut 4 and the piston body 1, and the disc spring adjusting nut 4 is clamped inside the brake caliper body 7 in a sliding mode; the two rectangular sealing rings 6 are arranged on the inner side of the brake caliper body 7, and the rectangular sealing rings 6 are mutually attached to the outer side of the piston body 1; the rubber taper sleeve 9 is arranged on the left side of the interior of the brake caliper body 7, and a taper sleeve compression nut 10 for extruding the rubber taper sleeve 9 is arranged on the outer side of the rubber taper sleeve 9;

referring to fig. 2, when the brake is applied, brake fluid pushes the piston body 1 to move forward, the piston body 1 drives the disc spring adjusting nut 4 to move forward, and the disc spring adjusting nut 4 and the compressed disc spring member 2 drive the guide rod 3 to move forward after maximum deformation, so that automatic clearance compensation and braking are realized; after the brake is finished, brake fluid is decompressed, a friction clamping device consisting of a taper sleeve compression nut 10 and a rubber taper sleeve 9 realizes self-locking, a guide rod 3 is fixed, a disc spring piece 2 rebounds to push a disc spring adjusting nut 4 to retreat, the disc spring adjusting nut 4 drives a piston body 1 to return to a designed gap, and the piston body 1 automatically returns; the front end of the inner cavity of the brake caliper body 7 is provided with the double rectangular sealing ring 6, and the tail end is sealed by the double O-shaped sealing ring 8, so that the sealing effect of the piston is better, and the oil leakage probability is reduced; the clamping part of the guide rod 3 adopts a cone-shaped structure, the friction torque can be adjusted according to the actual design requirement of a product, and the rubber taper sleeve 9 is selected, so that the guide rod 3 is clamped and the sealing effect is achieved;

a heat sink 28 disposed outside the caliper body 7, wherein a dust ring 5 for blocking dust is disposed on the right side inside the caliper body 7, and an upper scraper 16 and a lower scraper 18 for pushing dust are slidably engaged with the outer side of the dust ring 5; an O-shaped sealing ring 8 for sealing is arranged on the left side in the brake caliper body 7, a winding column 12 for winding the brake caliper body 7 is connected to the upper side in the brake caliper body 7 in a bearing mode, and a connecting rope 15 for enabling the winding column 12 to rotate is arranged between the winding column 12 and the piston body 1; the left side and the right side of the outer side of the winding column 12 are respectively provided with a fixing rope 14 for pulling the upper scraper 16, the fixing ropes 14 on the left side and the right side are wound on the outer side of the winding column 12, and the winding directions of the fixing ropes 14 on the left side and the right side are opposite; the other end of the fixed rope 14 is fixed on an upper scraper 16 for processing dust, the upper scraper 16 is connected with a lower scraper 18 through a transmission rope 17, and the sliding distances of the upper scraper 16 and the lower scraper 18 are the same;

as shown in fig. 2-4, brake fluid enters the interior of the brake caliper body 7 through the inlet 27, the brake fluid in the interior of the brake caliper body 7 pushes the piston body 1 in the interior, the piston body 1 moves forward and pulls the connecting rope 15, because the other end of the connecting rope 15 is wound on the winding column 12, the connecting rope 15 pulls the winding column 12 to rotate, the winding column 12 rotates to wind the fixing rope 14 on the right side, the fixing rope 14 on the left side is in a loose state, the fixing rope 14 on the right side pulls the upper scraper 16 to move, the upper scraper 16 pulls the lower scraper 18 through the transmission rope 17, and the upper scraper 16 and the lower scraper 18 move to scrape dust on the dust ring 5, so as to treat the dust;

the outer side of the rubber taper sleeve 9 is mutually attached to the inner side of the taper sleeve compression nut 10, the periphery of the rubber taper sleeve 9 is of an inclined structure, water-absorbing sponges 19 for absorbing brake fluid are arranged inside the brake caliper body 7, 2 groups of the water-absorbing sponges 19 are arranged, and a clamping groove 22 for placing a button 23 and a sound 25 is formed inside the brake caliper body 7; the periphery of the inside of the card slot 22 is of an inclined structure, the button 23 and the sound 25 are arranged inside the card slot 22, the button 23 is positioned above the sound 25, and the button 23 and the sound 25 are positioned on the same circuit; a rotating rod 20 for pulling the water absorption sponge 19 is arranged in the brake caliper body 7, a motor 26 for rotating the rotating rod 20 in a clearance way is arranged at the rear side of the rotating rod 20, and the output end of the motor 26 is connected with the rotating rod 20; a pull rope 24 which enables the water absorption sponge 19 to move downwards is arranged between the upper parts of the left side and the right side of the rotating rod 20 and the water absorption sponge 19, and a return spring 21 which enables the water absorption sponge 19 to move upwards is arranged between the water absorption sponge 19 and the brake caliper body 7; the water absorption sponge 19 is positioned in a gap between the piston body 1 and the brake caliper body 7, the moving directions of the water absorption sponge 19 on the left side and the right side are opposite, and the diameter of the water absorption sponge 19 is larger than that of the clamping groove 22;

referring to fig. 2 and 7, when brake fluid leaks, the brake fluid flows to the right, the left absorbent sponge 19 absorbs the brake fluid, the motor 26 drives the rotating rod 20 to rotate, the motor 26 rotates the rotating rod 20 left and right, the single rotation angle of the rotating rod 20 is less than 90 degrees, when the rotating rod 20 rotates counterclockwise, the left side of the rotating rod 20 pulls the left pull rope 24, the left pull rope 24 moves the left absorbent sponge 19 downward, the left absorbent sponge 19 is squeezed through the structure of the clamping groove 22, water in the absorbent sponge 19 drops above the left button 23, the button 23 moves downward due to the gravity of the water, the sound 25 makes a sound to remind a user that oil leaks in the brake, and the right side pushes the right absorbent sponge 19 while the rotating rod 20 rotates counterclockwise, and at the same time, the right water-absorbing sponge 19 is moved upward by the elastic force of the return spring 21.

The outer side of the brake caliper body 7 is provided with a bolt 11 for fixing the brake caliper body 7, the upper left corner of the brake caliper body 7 is provided with an inlet 27 for brake fluid to enter the brake caliper body 7, and the outer side of the winding column 12 is wound with a torsion spring 13 for reversely rotating the winding column 12.

The working principle of the embodiment is as follows: when the brake return piston device with the automatic compensation function is used, as shown in fig. 1-8, the piston body 1 has the automatic compensation function through the arrangement of the disc spring adjusting nut 4 and the guide rod 3, brake fluid is blocked through the arrangement of the rectangular sealing ring 6 and the O-shaped sealing ring 8, the flowing condition of the brake fluid in the brake is monitored through the sound box 25, the brake fluid is prevented from being discovered untimely after leakage, dust on the dust ring 5 is treated through the movement of the lower scraper 18 and the upper scraper 16, and the dust is prevented from being accumulated on the surface of the dust ring 5, so that a series of work is completed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. The brake return piston device with the automatic compensation function comprises a piston body (1), an inlet port (27), a guide rod (3) and a brake caliper body (7);

the piston body (1) is clamped in the brake caliper body (7) in a sliding mode, and an inlet (27) for brake fluid to enter is formed in the brake caliper body (7);

the guide rod (3) is clamped on the left side inside the brake caliper body (7) in a sliding mode;

it is characterized by also comprising:

the disc spring piece (2) is arranged inside the brake caliper body (7), the disc spring piece (2) is positioned between the disc spring adjusting nut (4) and the piston body (1), and the disc spring adjusting nut (4) is clamped inside the brake caliper body (7) in a sliding mode;

the two rectangular sealing rings (6) are arranged on the inner side of the brake caliper body (7), and the rectangular sealing rings (6) are attached to the outer side of the piston body (1);

the rubber taper sleeve (9) is arranged on the left side of the inner part of the brake caliper body (7), and a taper sleeve compression nut (10) for extruding the rubber taper sleeve (9) is arranged on the outer side of the rubber taper sleeve (9);

and the radiator (28) is arranged on the outer side of the brake caliper body (7), a dust ring (5) for blocking dust is arranged on the right side in the brake caliper body (7), and an upper scraper (16) and a lower scraper (18) for pushing the dust are slidably clamped on the outer side of the dust ring (5).

2. A brake return piston device with automatic compensation function according to claim 1, characterized in that: an O-shaped sealing ring (8) for sealing is arranged on the left side of the inside of the brake caliper body (7), a winding column (12) for winding the brake caliper body (7) is connected to the upper side of the inside of the brake caliper body (7) through a bearing, and a connecting rope (15) for enabling the winding column (12) to rotate is arranged between the winding column (12) and the piston body (1).

3. A brake return piston device with automatic compensation function according to claim 2, characterized in that: the left side and the right side of the outer side of the winding column (12) are provided with fixing ropes (14) for pulling the upper scraper (16), the fixing ropes (14) on the left side and the right side are wound on the outer side of the winding column (12), and the winding directions of the fixing ropes (14) on the left side and the right side are opposite.

4. A brake return piston device with automatic compensation function according to claim 3, characterized in that: the other end of the fixed rope (14) is fixed on an upper scraper (16) for processing dust, the upper scraper (16) is connected with a lower scraper (18) through a transmission rope (17), and the sliding distances of the upper scraper (16) and the lower scraper (18) are the same.

5. A brake return piston device with automatic compensation function according to claim 1, characterized in that: the outside of rubber taper sleeve (9) and the inboard of taper sleeve gland nut (10) laminate each other to be the slope structure around rubber taper sleeve (9), the inside of stopper pincers body (7) is provided with carries out absorbent sponge (19) that absorb to the brake fluid, and absorbs water sponge (19) and be provided with 2 groups, and draw-in groove (22) of placing button (23) and stereo set (25) have been seted up to the inside of stopper pincers body (7).

6. A brake return piston device with automatic compensation function according to claim 5, characterized in that: the inside of draw-in groove (22) is the slope structure all around, and the inside of draw-in groove (22) is provided with button (23) and stereo set (25) to button (23) are located the top of stereo set (25), and button (23) and stereo set (25) are located same circuit moreover.

7. A brake return piston device with automatic compensation function according to claim 1, characterized in that: the inside of the brake caliper body (7) is provided with a rotating rod (20) for pulling the water absorption sponge (19), the rear side of the rotating rod (20) is provided with a motor (26) for rotating the rotating rod (20) in a clearance way, and the output end of the motor (26) is connected with the rotating rod (20).

8. A brake return piston device with automatic compensation function according to claim 7, characterized in that: a pull rope (24) which enables the water absorption sponge (19) to move downwards is arranged between the upper parts of the left side and the right side of the rotating rod (20) and the water absorption sponge (19), and a return spring (21) which enables the water absorption sponge (19) to move upwards is arranged between the water absorption sponge (19) and the brake caliper body (7).

9. A brake return piston device with automatic compensation function according to claim 5, characterized in that: the water absorption sponge (19) is positioned in a gap between the piston body (1) and the brake caliper body (7), the moving directions of the water absorption sponge (19) on the left side and the right side are opposite, and the diameter of the water absorption sponge (19) is larger than that of the clamping groove (22).

10. A brake return piston device with automatic compensation function according to claim 2, characterized in that: the outer side of the brake caliper body (7) is provided with a bolt (11) for fixing the brake caliper body (7), the upper left corner of the brake caliper body (7) is provided with an inlet (27) for brake fluid to enter the brake caliper body (7), and the outer side of the winding column (12) is wound with a torsion spring (13) for enabling the winding column (12) to rotate reversely.

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