Protective brake shoe

Abstract

The utility model discloses a protection type brake shoe which comprises a brake drum, a mounting plate is fixedly connected to the interior of the brake drum, two sets of fixing columns are fixedly connected to the top end of the mounting plate, a first brake shoe and a second brake shoe are rotationally connected to the exteriors of the two sets of fixing columns respectively, and the first brake shoe and the second brake shoe are symmetrically arranged. By arranging the refrigeration mechanism and forming ventilation holes in the surfaces of the first brake shoe and the second brake shoe, friction plates can be cooled when the brake shoes work, the situation that the abrasion degree of the friction plates is increased due to high temperature is prevented, and the service life of the brake shoes is prolonged; the pressing alarm mechanism is arranged between the first brake shoe and the second brake shoe, so that when the abrasion degree of a friction plate is large, the distance between the two brake shoes is decreased, a sliding block is pushed to extrude and press an alarm body to give an alarm, a driver is reminded to replace the friction plate in time, and accidents are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake shoe equipment technical field, concretely is a protective type brake shoe. BACKGROUND

[0002] Brake shoe refers to the accessory that is pushed to the outside and is unfolded to suppress the brake drum to play the brake action under the action of brake cam or push rod, is installed on the brake drum, and is one of the key safety parts in the automobile brake system.

[0003] The existing brake shoe does not set up the cooling mechanism, and the temperature of the friction plate is raised in the brake process, the high-speed friction of the friction plate and the brake drum can lead to the high wear rate of the friction plate, the service life of the friction plate is shortened, and the alarm mechanism is not set up, so the driver needs to dismount the brake shoe regularly, and the wear condition of the friction plate is observed, and if the driver cannot find in time, the accident can occur, and the life safety of the driver is harmed.

[0004] Therefore, the utility model provides a protective type brake shoe to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the shortage of prior art, the utility model provides a protective type brake shoe, the cooling mechanism is arranged at the rear end of the first brake shoe and the second brake shoe to cool the friction plate, the situation that the wear rate is increased due to the overheating of the friction plate is prevented, the driver is reminded to replace the friction plate in time by setting the pressing alarm mechanism, the wear condition of the friction plate can be known without dismounting the tire, and the above problems are solved.

[0006] In order to realize the above purpose, the utility model is realized through the following technical scheme: a protective type brake shoe, which comprises a brake drum, a mounting plate is fixedly connected in the brake drum, the top end of the mounting plate is fixedly connected with two groups of fixed columns, the outer parts of the two groups of fixed columns are rotatably connected with a first brake shoe and a second brake shoe respectively, the first brake shoe and the second brake shoe are symmetrically arranged, the side, close to the brake drum, of the first brake shoe and the second brake shoe is fixedly connected with a friction plate through a bolt respectively, and the side, away from the brake drum, of the first brake shoe and the second brake shoe is provided with a cooling mechanism.

[0007] Preferably, the cooling mechanism comprises a shell, a motor is fixedly connected to the side, away from the first brake shoe, of the shell, the output end of the motor is fixedly connected with a heat dissipation fan, the side, away from the motor, of the heat dissipation fan is provided with a heat dissipation fin, one end of the heat dissipation fin is fixedly connected with a heat insulation pad, the inside of the heat insulation pad is installed with a semiconductor refrigeration piece, and one end of the semiconductor refrigeration piece is installed with a cold guide piece.

[0008] Preferably, one end of the two groups of cooling mechanisms is fixedly connected with a connecting pipe, and the output end of the connecting pipe is fixedly connected with the first brake shoe and the second brake shoe respectively.

[0009] Preferably, the first brake shoe and the second brake shoe are internally provided with cavities, and a plurality of groups of evenly distributed ventilation holes are provided on the side of the first brake shoe and the second brake shoe close to the friction plate.

[0010] Preferably, the front and rear ends of the two groups of refrigeration mechanisms are fixedly connected with fixed plates, the side of the fixed plates away from the refrigeration mechanisms is fixedly connected with the first brake shoe and the second brake shoe, and the two sides of the fixed plates are fixedly connected with the cross-arranged reinforcing ribs.

[0011] Preferably, one end of the first brake shoe and the second brake shoe is fixedly connected with the pressing alarm mechanism and the reset spring, and the other end of the first brake shoe and the second brake shoe is fixedly connected with the hydraulic cylinder.

[0012] Preferably, the pressing alarm mechanism comprises a sleeve, the inside of the sleeve is fixedly installed with a pressing alarm body, and the inside of the sleeve is slidably connected with a sliding block.

[0013] Preferably, the outside of the pressing alarm body is sleeved with a first spring, one end of the first spring is fixedly connected with the bottom end of the sliding block, and the other end of the first spring is fixedly connected with the bottom end of the inner wall of the sleeve.

[0014] Beneficial effects

[0015] The utility model provides a protective type brake shoe, and has the following beneficial effects compared with the prior art:

[0016] (1), through setting refrigeration mechanism and the surface of first brake shoe and second brake shoe is provided with ventilation hole, make when brake shoe work can carry out the cooling to friction plate, be favorable to preventing high temperature accelerates the wear degree of friction plate, be favorable to prolonging the service life of brake shoe.

[0017] (2), through setting up pressing alarm mechanism in the middle of first brake shoe and second brake shoe, make when the wear degree of friction plate is bigger, the distance between two groups of brake shoes is close, and the sliding block is pressed to extrude the pressing alarm body and alarm, remind the driver to replace friction plate in time, prevent the accident from happening. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure front view of the utility model;

[0019] Figure 2 It is the partial structure section view of the utility model;

[0020] Figure 3 It is the brake shoe front view of the utility model;

[0021] Figure 4 It is the pressing alarm mechanism section view of the utility model.

[0022] In the figure: 1, brake drum; 2, first brake shoe; 3, second brake shoe; 4, friction plate; 5, mounting plate; 6, return spring; 7, press alarm mechanism; 701, sliding block; 702, sleeve; 703, first spring; 704, press alarm body; 8, fixed column; 9, refrigeration mechanism; 901, shell; 902, cold guide sheet; 903, semiconductor refrigeration sheet; 904, heat insulation pad; 905, motor; 906, cooling fan; 907, cooling fin; 10, hydraulic cylinder; 11, fixed plate; 12, connecting pipe; 13, cavity; 14, vent hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment one:

[0025] Please refer to Figures 1-4The utility model provides a kind of protective brake shoe, including brake drum 1, the inside fixed connection of brake drum 1 is equipped with mounting plate 5, the top of mounting plate 5 is fixedly connected with two groups of fixed column 8, the outside of two groups of fixed column 8 is rotatably connected with first brake shoe 2 and second brake shoe 3 respectively, the first brake shoe 2 and second brake shoe 3 are symmetrically arranged, and the side of first brake shoe 2 and second brake shoe 3 close to brake drum 1 is fixedly connected with friction plate 4 by bolt respectively, and the side of first brake shoe 2 and second brake shoe 3 away from brake drum 1 is provided with refrigeration mechanism 9 respectively;The position of first brake shoe 2 and second brake shoe 3 is fixed by setting fixed column 8, and friction plate 4 is connected with first brake shoe 2 and second brake shoe 3 by bolt, so as to facilitate the replacement of friction plate, reduce the use cost of equipment, and the refrigeration mechanism 9 includes shell 901, the side of shell 901 away from first brake shoe 2 is fixedly connected with motor 905, the output of motor 905 is fixedly connected with cooling fan 906, the side of cooling fan 906 away from motor 905 is provided with cooling fin 907, one end of cooling fin 907 is fixedly connected with heat insulation pad 904, the inside of heat insulation pad 904 is equipped with semiconductor refrigeration piece 903, and one end of semiconductor refrigeration piece 903 is equipped with cold guide piece 902;Friction plate 4 is cooled by setting cold guide piece 902, semiconductor refrigeration piece 903, heat insulation pad 904, cooling fin 907 and cooling fan 906, one end of two groups of refrigeration mechanism 9 is fixedly connected with connecting pipe 12, and the output of connecting pipe 12 is fixedly connected with first brake shoe 2 and second brake shoe 3 respectively;The inside of first brake shoe 2 and second brake shoe 3 is all provided with cavity 13, and the side of first brake shoe 2 and second brake shoe 3 close to friction plate 4 is provided with several groups of evenly distributed air vents 14, and the cold gas in the inside of refrigeration mechanism 9 is transported to the cavity 13 in the inside of first brake shoe 2 and second brake shoe 3 by connecting pipe, and friction plate 4 is cooled by setting air vent 14.

[0026] In the embodiment, the position of first brake shoe 2 and second brake shoe 3 is fixed by setting fixed column 8, and friction plate 4 is connected with first brake shoe 2 and second brake shoe 3 by bolt, so as to facilitate the replacement of friction plate, reduce the use cost of equipment, and friction plate 4 is cooled by setting cold guide piece 902, semiconductor refrigeration piece 903, heat insulation pad 904, cooling fin 907 and cooling fan 906, which is conducive to preventing high temperature from accelerating the wear degree of friction plate, and is conducive to prolonging the service life of brake shoe, and the cold gas in the inside of refrigeration mechanism 9 is transported to the cavity 13 in the inside of first brake shoe 2 and second brake shoe 3 by connecting pipe, and friction plate 4 is cooled by setting air vent 14.

[0027] Embodiment two

[0028] Please refer to Figures 2-4The embodiment provides a technical scheme on the basis of the embodiment one: one end of the first brake shoe 2 and the second brake shoe 3 is fixedly connected with the pressing alarm mechanism 7 and the reset spring 6, and the other end of the first brake shoe 2 and the second brake shoe 3 is fixedly connected with the hydraulic cylinder 10; the first brake shoe 2 and the second brake shoe 3 are driven to move away from each other by the hydraulic cylinder 10, so that the tire is braked, the pressing alarm mechanism 7 comprises a sleeve 702, the inside of the sleeve 702 is fixedly connected with a pressing alarm body 704, and the inside of the sleeve 702 is slidably connected with a sliding block 701; the outside of the pressing alarm body 704 is sleeved with a first spring 703, one end of the first spring 703 is fixedly connected with the bottom end of the sliding block 701, and the other end of the first spring 703 is fixedly connected with the bottom end of the inner wall of the sleeve 702; the first brake shoe 2 and the second brake shoe 3 are driven to move away from each other, the other end of the first brake shoe 2 and the second brake shoe 3 is driven to move close to each other, and the sliding block 701 is driven to slide along the sleeve 702, when the abrasion of the friction plate 4 is greater than a set value, the sliding block 701 triggers an alarm, the driver is prompted, the driver is reminded to replace the friction plate in time, and accidents are prevented, and the front end and the rear end of the two groups of refrigeration mechanisms 9 are fixedly connected with fixed plates 11, one side of the fixed plate 11 away from the refrigeration mechanism 9 is fixedly connected with the first brake shoe 2 and the second brake shoe 3 respectively, and the two sides of the fixed plate 11 are fixedly connected with the reinforcing ribs arranged in a cross shape respectively, and the refrigeration mechanism 9 is fixed by arranging the fixed plate 11.

[0029] In the embodiment, the first brake shoe 2 and the second brake shoe 3 are driven to move away from each other by the hydraulic cylinder 10, so that the tire is braked, the first brake shoe 2 and the second brake shoe 3 are driven to move away from each other, the other end of the first brake shoe 2 and the second brake shoe 3 is driven to move close to each other, and the sliding block 701 is driven to slide along the sleeve 702, when the abrasion of the friction plate 4 is greater than a set value, the sliding block 701 triggers an alarm, the driver is prompted, the driver is reminded to replace the friction plate in time, and accidents are prevented.

[0030] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0031] It should be noted that, in the present document, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective brake shoe, comprising a brake drum (1), wherein a mounting plate (5) is fixedly connected inside the brake drum (1), and two sets of fixing posts (8) are fixedly connected to the top of the mounting plate (5), and a first brake shoe (2) and a second brake shoe (3) are rotatably connected to the outside of the two sets of fixing posts (8), characterized in that: The first brake shoe (2) and the second brake shoe (3) are symmetrically arranged. Friction plates (4) are fixedly connected to the side of the first brake shoe (2) and the second brake shoe (3) near the brake drum (1) by bolts. Cooling mechanisms (9) are respectively provided on the side of the first brake shoe (2) and the second brake shoe (3) away from the brake drum (1).

2. The protective brake shoe according to claim 1, characterized in that: The cooling mechanism (9) includes a housing (901). A motor (905) is fixedly connected to the side of the housing (901) away from the first brake shoe (2). A cooling fan (906) is fixedly connected to the output end of the motor (905). A heat sink (907) is provided on the side of the cooling fan (906) away from the motor (905). A heat insulation pad (904) is fixedly connected to one end of the heat sink (907). A semiconductor cooling chip (903) is installed inside the heat insulation pad (904). A cooling plate (902) is installed at one end of the semiconductor cooling chip (903).

3. A protective brake shoe according to claim 1, characterized in that: One end of each of the two sets of refrigeration mechanisms (9) is fixedly connected to a connecting pipe (12), and the output end of the connecting pipe (12) is fixedly connected to a first brake shoe (2) and a second brake shoe (3).

4. A protective brake shoe according to claim 1, characterized in that: The first brake shoe (2) and the second brake shoe (3) are both provided with cavities (13), and the first brake shoe (2) and the second brake shoe (3) are provided with several sets of evenly distributed ventilation holes (14) on the side near the friction plate (4).

5. A protective brake shoe according to claim 1, characterized in that: Both ends of the two sets of refrigeration mechanisms (9) are fixedly connected to a fixing plate (11). The first brake shoe (2) and the second brake shoe (3) are fixedly connected to the side of the fixing plate (11) away from the refrigeration mechanism (9). The two sides of the fixing plate (11) are fixedly connected to cross-arranged reinforcing ribs.

6. A protective brake shoe according to claim 1, characterized in that: A press alarm mechanism (7) and a reset spring (6) are fixedly connected at one end between the first brake shoe (2) and the second brake shoe (3), and a hydraulic cylinder (10) is fixedly connected at the other end between the first brake shoe (2) and the second brake shoe (3).

7. A protective brake shoe according to claim 6, characterized in that: The press alarm mechanism (7) includes a sleeve (702), the press alarm body (704) is fixedly installed inside the sleeve (702), and a slider (701) is slidably connected inside the sleeve (702).

8. A protective brake shoe according to claim 7, characterized in that: The body (704) of the press alarm is fitted with a first spring (703). One end of the first spring (703) is fixedly connected to the bottom end of the slider (701), and the other end of the first spring (703) is fixedly connected to the bottom end of the inner wall of the sleeve (702).

Images