CN110145560B

CN110145560B - Safety brake drum brake

Info

Publication number: CN110145560B
Application number: CN201910327694.2A
Authority: CN
Inventors: 戚荣斌; 印正权
Original assignee: Gaoyou Shunda Power Electromechanical Co ltd
Current assignee: Gaoyou Shunda Power Electromechanical Co ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-08-07
Anticipated expiration: 2039-04-23
Also published as: CN110145560A

Abstract

The invention relates to the technical field of drum brakes, and discloses a safe drum brake, which comprises a brake drum, wherein the inner wall of the front surface of the brake drum comprises a wheel cylinder, the back surface of the wheel cylinder is fixedly installed with the inner wall of the front surface of the brake drum, the wheel cylinder is internally provided with a piston, the surface of the piston is movably connected with the interior of the wheel cylinder, one end of the piston comprises a brake shoe, and one end of the piston, which is far away from the wheel cylinder, is fixedly installed with one end of the brake shoe. This safety brake drum is stopped, through a refrigeration section of thick bamboo, the extraction tube, mutually support between pipe and the shower nozzle, when utilizing the brake in addition, the movement down of extrusion pole to outwards extrude the blowout with the inside refrigerant of a refrigeration section of thick bamboo, utilize the refrigerant to carry out the inside and friction disc cooling heat dissipation of brake drum, it is not good to have solved closed structure and also let the heat dissipation of drum brake, the cooling effect, long-time brake leads to the brake overheated and inefficacy easily, probably causes the problem of occurence of failure from this.

Description

Safety brake drum brake

Technical Field

The invention relates to the technical field of automobile parts, in particular to a safety brake drum brake.

Background

Drum brake applications have been in recent history, but drum brakes are still deployed today on many vehicle models (mostly for rear wheels) due to their reliability and strong braking force. It is fixed with the tire and rotates at the same speed, during braking, the oil pressure is used to push the brake shoe to contact the inner edge of the brake drum, and the friction force generated by the contact is used to restrain the rotation of the tire to achieve the purpose of braking. The drum brake has low cost and high absolute braking force, and the inner surface of the brake drum of the drum brake is the position of the brake device for generating brake torque. The diameter of the brake drum of a drum brake assembly can be much smaller than the diameter of the brake disc of a disc brake assembly to achieve the same braking torque. Therefore, a large vehicle for load use can only be provided with a drum brake in a limited space of a rim in order to obtain strong braking force, the drum brake is a closed brake system, and all mechanisms are covered in a brake drum, so that the structure brings some advantages and disadvantages. The closed structure has the advantages that the closed structure is not easily interfered by external environment, for example, sand dust and muddy water are not easily introduced into the drum brake structure to influence the braking efficiency, the closed structure also enables the heat dissipation and cooling effects of the drum brake to be poor, and the long-time brake is easily caused to be overheated and fail, thereby possibly causing accidents.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a safe brake drum brake which has the advantages of heat dissipation and cooling and solves the problems that the closed structure causes poor heat dissipation and cooling effects of the drum brake, and the long-time brake is easy to cause brake overheating and failure, thereby possibly causing accidents.

The invention provides the following technical scheme: the utility model provides a safety brake drum is stopped, includes the brake drum, the front inner wall of brake drum includes the brake wheel cylinder, the back of brake wheel cylinder and the front inner wall fixed mounting of brake drum, the inside of brake wheel cylinder includes the piston, the inside swing joint of the surface of piston and brake wheel cylinder, the one end of piston includes the brake shoe, the one end of brake wheel cylinder and the one end fixed mounting of brake shoe are kept away from to the piston, the front inner wall of brake drum is including rotating the seat, the back of rotating the seat and the front inner wall welding of brake drum, the front inner wall of brake drum includes the locating pin, the surface of locating pin is pegged graft with the inside of rotating the seat, the surface of brake shoe includes the friction disc, one side of friction disc bonds with the surface of brake shoe, the quantity of brake shoe is two, and the front of two brake shoes all includes the hanging hole, connect through reset spring between two hanging holes, the front inner wall of brake drum includes a refrigeration section of thick bamboo, the back of a refrigeration section of thick bamboo bonds with the front inner wall of brake drum, the surface of brake drum includes the staple bolt, the staple bolt be located the surface of brake drum and with the brake drum joint, the back of staple bolt and the front inner wall fixed mounting of brake drum, the inside of a refrigeration section of thick bamboo includes the extraction pipe, the surface of extraction pipe and the inside swing joint of a refrigeration section of thick bamboo.

The one end that a refrigeration section of thick bamboo was kept away from to the extraction tube includes the extraction rod, the lower surface of extrusion rod bonds with the top of extraction tube, the sliding hole has been seted up in the front of brake shoe, the inside in sliding hole includes the sliding shaft, the surface of sliding shaft and the inside sliding connection in sliding hole, the right side surface of sliding shaft and the left side welding of extrusion rod, the left and right sides of extraction tube all includes the pipe, two pipe relative one ends respectively with the left side and the right side intercommunication of extraction tube, two pipe opposite one ends all include the shower nozzle, two shower nozzle relative one sides respectively with two pipe opposite one end fixed mounting.

Preferably, the left side of the brake shoe is provided with a positioning hole communicated with the right side, the positioning hole comprises a threaded rod inside, and the surface of the threaded rod is inserted into the positioning hole.

Preferably, the left end of threaded rod and the inner wall welding of friction disc, the surface of threaded rod includes the nut, the surface threaded connection of the inner wall of nut and threaded rod.

Preferably, the front inner wall of the brake drum comprises a balance bar, and the back of the balance bar is welded with the front inner wall of the brake drum.

Preferably, the upper surface of the extrusion rod is provided with a movable hole communicated with the lower surface, and the top end of the balance rod is movably connected with the inside of the movable hole.

Preferably, the lower surface of the brake drum is provided with a drain hole communicated with the inside of the brake drum, the inside of the drain hole comprises a sealing plug, and the surface of the sealing plug is clamped with the inside of the drain hole.

Preferably, the surface of the sealing plug comprises a foam-rubber cushion, and the lower surface of the foam-rubber cushion is adhered to the upper surface of the sealing plug.

Preferably, the upper surface of the spongy cushion comprises a fixed block, the lower surface of the fixed block is bonded with the upper surface of the spongy cushion, and the upper surface of the fixed block is welded with the lower surface of the rotating seat.

Compared with the prior art, the invention has the following beneficial effects:

1. this safety brake drum is stopped, through a refrigeration section of thick bamboo, the extraction tube, mutually support between pipe and the shower nozzle, when utilizing the brake in addition, the movement down of extrusion pole to outwards extrude the blowout with the inside refrigerant of a refrigeration section of thick bamboo, utilize the refrigerant to carry out the inside and friction disc cooling heat dissipation of brake drum, it is not good to have solved closed structure and also let the heat dissipation of drum brake, the cooling effect, long-time brake leads to the brake overheated and inefficacy easily, probably causes the problem of occurence of failure from this.

2. This safety brake drum is stopped, through the mutually supporting between sealing plug, foam-rubber cushion and the fixed block, reaches when the refrigerant has the phenomenon of piling up in that the brake drum is inside, and the refrigerant can keep the inside drying of brake drum through the absorption of foam-rubber cushion, avoids moist influence brake performance, in addition through upwards extrudeing the sealing plug for be convenient for discharge the absorbent refrigerant on the foam-rubber cushion.

Drawings

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

FIG. 2 is an enlarged view of a portion of the structure of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 1 at C.

In the figure: 1. a brake drum; 2. a brake cylinder; 3. a piston; 4. a friction plate; 5. a brake shoe; 6. positioning holes; 7. a threaded rod; 8. a nut; 9. hanging holes; 10. a return spring; 11. a rotating seat; 12. a sealing plug; 13. a drain hole; 14. a sponge cushion; 15. a fixed block; 16. positioning pins; 17. an extrusion stem; 18. a sliding shaft; 19. a spray head; 20. a slide hole; 21. a conduit; 22. a movable hole; 23. a balancing pole; 24. hooping; 25. a refrigeration cylinder; 26. and (4) extracting the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a safe brake drum brake comprises a brake drum 1, a drain hole 13 communicated with the interior of the brake drum 1 is formed in the lower surface of the brake drum 1, a sealing plug 12 is arranged in the drain hole 13, the surface of the sealing plug 12 is clamped with the interior of the drain hole 13, a foam-rubber cushion 14 is arranged on the surface of the sealing plug 12, the lower surface of the foam-rubber cushion 14 is adhered to the upper surface of the sealing plug 12, a fixing block 15 is arranged on the upper surface of the foam-rubber cushion 14, the lower surface of the fixing block 15 is adhered to the upper surface of the foam-rubber cushion 14, the upper surface of the fixing block 15 is welded to the lower surface of a rotating base 11, a brake cylinder 2 is arranged on the inner wall of the front surface of the brake drum 1, the back surface of the brake cylinder 2 is fixedly arranged on the inner wall of the front surface of the brake drum 1, a piston 3 is arranged in, one end of the piston 3, which is far away from the wheel cylinder 2, is fixedly installed with one end of the brake shoe 5, the front inner wall of the brake drum 1 comprises a rotating seat 11, the back surface of the rotating seat 11 is welded with the front inner wall of the brake drum 1, the front inner wall of the brake drum 1 comprises a positioning pin 16, the surface of the positioning pin 16 is spliced with the inside of the rotating seat 11, the outer surface of the brake shoe 5 comprises a friction plate 4, one side of the friction plate 4 is bonded with the outer surface of the brake shoe 5, the left side of the brake shoe 5 is provided with a positioning hole 6 communicated with the right side, the inside of the positioning hole 6 comprises a threaded rod 7, the surface of the threaded rod 7 is spliced with the inside of the positioning hole 6, the left end of the threaded rod 7 is welded with the inner wall of the friction plate 4, the surface of the threaded rod 7 comprises a nut 8, the inner wall of, if friction disc displacement influences brake efficiency easily appears in long-time brake, utilize being connected between threaded rod 7 and the nut 8 so, fastness between can effectual increase friction disc 4 and the brake shoe 5, the quantity of brake shoe 5 is two, the front of two brake shoes 5 all includes hanging hole 9, connect through reset spring 10 between two hanging hole 9, the positive inner wall of brake drum 1 includes a refrigeration section of thick bamboo 25, the back of a refrigeration section of thick bamboo 25 bonds with the positive inner wall of brake drum 1, the surface of brake drum 1 includes staple bolt 24, staple bolt 24 is located the surface of brake drum 1 and just with brake drum 1 joint, the back of staple bolt 24 and the positive inner wall fixed mounting of brake drum 1, the inside of a refrigeration section of thick bamboo 25 includes extraction pipe 26, the inside swing joint of the surface of extraction pipe 26 and a refrigeration section of thick bamboo 25.

The end of the extraction pipe 26 far away from the refrigeration cylinder 25 comprises an extrusion rod 17, the lower surface of the extrusion rod 17 is bonded with the top end of the extraction pipe 26, the working principle between the extraction pipe 26 and the refrigeration cylinder 25 is like a spraying product, the extraction pipe is pressed downwards to enable the internal liquid substance to be sprayed outwards, various refrigeration materials can be filled in the refrigeration cylinder 25 according to requirements, for example, materials with better cooling effect can be adopted in summer, normal refrigeration materials can be adopted in winter, the front inner wall of the brake drum 1 comprises a balance rod 23, the back surface of the balance rod 23 is welded with the front inner wall of the brake drum 1, the upper surface of the extrusion rod 17 is provided with a movable hole 22 communicated with the lower surface, the top end of the balance rod 23 is movably connected with the inside of the movable hole 22, when the extrusion rod 17 moves downwards or upwards, the extrusion rod 17 can move on the surface of the balance rod 23 through the movable hole 22, and therefore, the balance of the extrusion rod 17 can be increased, also avoid two brake shoes 5 to appear asynchronous when separating, sliding hole 20 has been seted up in the front of brake shoe 5, sliding hole 20's inside includes slide shaft 18, slide shaft 18's the inside sliding connection of surface and slide hole 20, slide shaft 18's right side surface and the left side welding of extrusion pole 17, the left and right sides of extraction tube 26 all includes pipe 21, the relative one end of two pipes 21 communicates with the left side and the right side of extraction tube 26 respectively, the opposite one end of two pipes 21 all includes shower nozzle 19, the relative one side of two shower nozzles 19 respectively with the opposite one end fixed mounting of two pipes 21.

The working principle is that when a brake is stepped on, the brake cylinder 2 works and pushes the piston 3, at the moment, the piston 3 drives the two brake shoes 5 to deflect towards opposite directions respectively, in the process, the extrusion rod 17 moves downwards and moves downwards simultaneously in the sliding hole 20 through the sliding shaft 18, the extrusion rod 17 drives the extraction pipe 26 to extrude downwards when moving downwards, the refrigerant in the refrigeration cylinder 25 is extracted outwards and discharged outwards through the two guide pipes 21 when the extraction pipe 26 extrudes downwards, when the refrigerant reaches the spray head 19, the spray head 19 sprays the refrigerant, and in order to keep the interior of the brake drum 1 relatively dry, the sealing plug 12 can be pushed upwards periodically, so that the sealing plug 12 extrudes the sponge pad 14 upwards, and the refrigerant on the sponge pad 14 is discharged outwards through the water discharge hole 13.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a safety brake drum is stopped, includes brake drum (1), its characterized in that: the front inner wall of the brake drum (1) comprises a brake cylinder (2), the back of the brake cylinder (2) and the front inner wall of the brake drum (1) are fixedly installed, the inside of the brake cylinder (2) comprises a piston (3), the surface of the piston (3) is movably connected with the inside of the brake cylinder (2), one end of the piston (3) comprises a brake shoe (5), one end of the piston (3), far away from the brake cylinder (2), is fixedly installed with one end of the brake shoe (5), the front inner wall of the brake drum (1) comprises a rotating seat (11), the back of the rotating seat (11) is welded with the front inner wall of the brake drum (1), the front inner wall of the brake drum (1) comprises a positioning pin (16), the surface of the positioning pin (16) is spliced with the inside of the rotating seat (11), the outer surface of the brake shoe (5) comprises a friction plate (4), one side of each friction plate (4) is bonded with the outer surface of each brake shoe (5), the number of the brake shoes (5) is two, the front surfaces of the two brake shoes (5) respectively comprise hanging holes (9), the two hanging holes (9) are connected through a reset spring (10), the inner wall of the front surface of each brake drum (1) comprises a refrigeration cylinder (25), the back surface of each refrigeration cylinder (25) is bonded with the inner wall of the front surface of each brake drum (1), the outer surface of each brake drum (1) comprises a hoop (24), the hoop (24) is located on the outer surface of each brake drum (1) and is clamped with the brake drum (1), the back surface of each hoop (24) is fixedly installed with the inner wall of the front surface of each brake drum (1), the inner part of each refrigeration cylinder (25) comprises an extraction pipe (26), and the surface of each extraction pipe (26) is movably connected with the inner part of each refrigeration cylinder (25);

one end that refrigeration section of thick bamboo (25) was kept away from to extraction pipe (26) includes extrusion stem (17), the lower surface of extrusion stem (17) bonds with the top of extraction pipe (26), slip hole (20) have been seted up in the front of brake shoe (5), the inside of slip hole (20) includes slide shaft (18), the inside sliding connection of the surface of slide shaft (18) and slip hole (20), the right side surface of slide shaft (18) and the left side welding of extrusion stem (17), the left and right sides of extraction pipe (26) all includes pipe (21), the relative one end of two pipe (21) communicates with the left side and the right side of extraction pipe (26) respectively, the opposite one end of two pipe (21) all includes shower nozzle (19), the relative one side of two shower nozzle (19) respectively with the opposite one end fixed mounting of two pipe (21).

2. The safety brake drum of claim 1, wherein: the brake shoe is characterized in that a positioning hole (6) communicated with the right side is formed in the left side of the brake shoe (5), a threaded rod (7) is arranged inside the positioning hole (6), and the surface of the threaded rod (7) is inserted into the positioning hole (6).

3. The safety brake drum of claim 2, wherein: the left end of threaded rod (7) and the inner wall welding of friction disc (4), the surface of threaded rod (7) includes nut (8), the surface threaded connection of the inner wall of nut (8) and threaded rod (7).

4. The safety brake drum of claim 1, wherein: the front inner wall of the brake drum (1) comprises a balance rod (23), and the back of the balance rod (23) is welded with the front inner wall of the brake drum (1).

5. The safety brake drum of claim 4, wherein: the upper surface of the extrusion rod (17) is provided with a movable hole (22) communicated with the lower surface, and the top end of the balance rod (23) is movably connected with the inside of the movable hole (22).

6. The safety brake drum of claim 1, wherein: the brake drum is characterized in that a drain hole (13) communicated with the interior of the brake drum (1) is formed in the lower surface of the brake drum (1), a sealing plug (12) is arranged in the drain hole (13), and the surface of the sealing plug (12) is clamped with the interior of the drain hole (13).

7. The safety brake drum of claim 6, wherein: the surface of the sealing plug (12) comprises a sponge pad (14), and the lower surface of the sponge pad (14) is bonded with the upper surface of the sealing plug (12).

8. The safety brake drum of claim 7, wherein: the upper surface of the spongy cushion (14) comprises a fixing block (15), the lower surface of the fixing block (15) is bonded with the upper surface of the spongy cushion (14), and the upper surface of the fixing block (15) is welded with the lower surface of the rotating seat (11).