CN212839051U

CN212839051U - Wedge type brake assembly spring

Info

Publication number: CN212839051U
Application number: CN202021726028.0U
Authority: CN
Inventors: 伍非
Original assignee: Wuxi Qizhou Hardware Co ltd
Current assignee: Wuxi Qizhou Hardware Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-03-30
Anticipated expiration: 2030-08-18

Abstract

The utility model belongs to the technical field of the stopper, concretely relates to wedge brake assembly spring. The utility model discloses a casing, brake shoe, brake block, L shape hook, bottom plate, voussoir, reset spring subassembly. The shell is arranged on one side of the bottom plate in a matching mode, and the shell is internally provided with an electric cylinder, a push rod, a push block and a wedge block in sequence. An L-shaped hook is arranged on the inner side surface of the brake shoe, and a return spring assembly is connected between the L-shaped hook and the bottom plate. The reset spring assembly comprises a pull rod, a first spring barrel, a first reset spring, a pull block, a sealing ring, a sealing valve, a second spring barrel, a second reset spring, a bolt and a fixed rod. The utility model discloses a set up the spring case, can effectively protect reset spring not corroded by external environment, be provided with the dead lever of nimble equipment simultaneously, make the utility model discloses can adapt to the stopper of different models, improve interchangeability.

Description

Wedge type brake assembly spring

Technical Field

The utility model belongs to the technical field of the stopper, concretely relates to wedge brake assembly spring.

Background

A brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member, and is a mechanical part that stops or decelerates a moving member in a machine, and is commonly called a brake or a gate. The brake mainly comprises a braking frame, braking parts, an operating device and the like, and some brakes are also provided with automatic adjusting devices of braking part gaps. In order to reduce the braking torque and the structural size, the brake is usually mounted on the high-speed shaft of the equipment, but large equipment with high requirements on safety is mounted on the low-speed shaft close to the working part of the equipment.

The brake shoe of the wedge brake leans against the plunger, and the inner end surface of the plunger is an inclined surface and is contacted with the roller wheels which are supported in the grooves on the two sides of the isolation frame. When braking, the piston of wheel cylinder makes the brake wedge move inwards under the action of cylinder, and the brake wedge makes the rollers roll inwards along the inclined plane of plunger and makes the plungers move outwards for a certain distance in the holes of brake bottom plate, so that the brake shoe is pressed against the brake drum. Once the air pressure of the wheel cylinder is removed, the series of parts are respectively reset under the action of the brake shoe return spring.

The return spring in the prior art is directly arranged in an external environment, and is easily corroded and reduced in performance in the use process. Meanwhile, in the use process of the spring, because the distance between the two brake shoes of the brakes in different types is different, the brake in one type can only use one return spring, and the interchangeability is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a wedge brake assembly spring.

The utility model provides a following technical scheme:

a wedge brake assembly spring includes a base plate; a shell is arranged on one side of the bottom plate in a matching way; an electric cylinder, a push rod, a push block and a wedge block are sequentially arranged in the shell, and the electric cylinder is electrically connected with an external power supply through an external brake pedal; one end of the wedge block is fixedly connected with a brake shoe; the outer side surface of the brake shoe is provided with a brake pad; an L-shaped hook is arranged on the inner side surface of the brake shoe; a return spring assembly is connected between the L-shaped hook and the bottom plate; the return spring assembly comprises a first spring barrel; through holes are formed in two ends of the spring cylinder; one end of the first spring barrel is connected with a second spring barrel; a pull rod is inserted into the through hole, penetrates through the through hole and extends into the second spring barrel; a second return spring is connected between one end of the pull rod extending into the second spring barrel and the inner wall of the second spring barrel; one end of the pull rod, which is positioned outside the spring cylinder I, is provided with a first fixing ring; a pull block is fixedly arranged on the pull rod, close to the spring barrel II, in the spring barrel I; a first return spring is connected between the pull block and the inner wall of the first spring barrel, which is far away from the second spring barrel; one end of the spring cylinder II is connected with the spring cylinder I, the other end of the spring cylinder II is provided with a lug, and threaded holes I are uniformly distributed in the lug; the convex block is connected with a fixed rod in a matching mode through a bolt, one end of the fixed rod is provided with a second fixed ring, the other end of the fixed rod is provided with a groove, and the groove wall of the groove is correspondingly and uniformly provided with a second threaded hole.

Radiating holes are uniformly distributed on the brake pad.

And the side surface of the push block close to the wedge block is provided with a roller.

An oil filling port is formed in the first spring cylinder, and a sealing valve is mounted on the oil filling port.

And a sealing ring is arranged between the through hole and the pull rod.

The utility model has the advantages that:

the utility model discloses a set up the spring case, can effectively protect reset spring not corroded by external environment, be provided with the dead lever of nimble equipment simultaneously, make the utility model discloses can adapt to the stopper of different models, improve interchangeability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the return spring assembly of the present invention;

fig. 3 is a schematic view of the installation of the fixing rod of the present invention.

Labeled as: the brake comprises a shell 101, a brake shoe 102, a brake pad 103, an L-shaped hook 104, a bottom plate 105, a wedge block 106, a return spring assembly 200, a pull rod 201, a first spring sleeve 202, a first return spring 203, a pull block 204, a sealing ring 205, a sealing valve 206, a second spring sleeve 207, a second return spring 208, a bolt 209 and a fixing rod 210.

Detailed Description

As shown, a wedge brake assembly spring includes a housing 101, a brake shoe 102, a brake plate 103, an L-shaped hook 104, a bottom plate 105, a wedge 106, and a return spring assembly 200. The shell 101 is arranged on one side of the bottom plate 105 in a matched mode, an electric cylinder, a push rod, a push block and a wedge block 106 are sequentially arranged in the shell 101, the electric cylinder is electrically connected with an external power supply through an external brake pedal, a roller is arranged on the side face, close to the wedge block 106, of the push block, and one end of the wedge block 106 is fixedly connected with the brake shoe 102. The outer side surface of the brake shoe 102 is provided with a brake block 103, and heat dissipation holes are uniformly distributed on the brake block 103. When a brake pedal is stepped on, the electric cylinder is powered on, the cylinder drives the push rod to drive the push block to push the wedge block 106 to move towards two sides, the wedge block 106 pushes the brake shoe 102 to press the wheel hub, a vehicle is braked, and when the brake block 103 brakes, the brake block 103 dissipates heat through the heat dissipation holes, so that the influence of heat on the brake block 103 is reduced.

An L-shaped hook 104 is arranged on the inner side surface of the brake shoe 103, a return spring assembly 200 is connected between the L-shaped hook 104 and the bottom plate 105, and the return spring assembly 200 comprises a pull rod 201, a first spring cylinder 202, a first return spring 203, a pull block 204, a sealing ring 205, a sealing valve 206, a second spring cylinder 207, a second return spring 208, a bolt 209 and a fixing rod 210. The second spring barrel 207 is fixedly connected to one end of the first spring barrel 202. An oil filling port is formed in the first spring barrel 202, and the sealing valve 206 is cooperatively mounted on the oil filling port, so that lubricating oil can be filled into the first spring barrel 202 through the oil filling port. Through holes are formed in two ends of the first spring barrel 202, and the pull rod 201 penetrates through the through holes to extend into the second spring barrel 207. A sealing ring 205 is arranged between the through hole and the pull rod 201. A second return spring 208 is connected between one end of the pull rod 201 extending into the second spring barrel 207 and the inner wall of the second spring barrel 207. A pull rod 201, close to the second spring barrel 207, in the first spring barrel 202 is fixedly provided with a pull block 204, and a first return spring 203 is connected between the pull block 204 and the inner wall of the first spring barrel 202, far away from the second spring barrel 207.

One end of the second spring cylinder 207 is connected with the first spring cylinder 202, the other end of the second spring cylinder is provided with a lug, and threaded holes I are uniformly distributed in the lug. One end of the fixing rod 210 is provided with a groove, the fixing rod 210 can be inserted into the projection, and the groove wall of the groove is correspondingly and uniformly provided with a second threaded hole. The distance between the top end of the projection and the bottom of the groove can be adjusted according to specific use conditions, and then the second spring cylinder 207 and the fixing rod 210 are fixedly connected together by using the bolt 209.

The other end of the fixing rod 210 is provided with a fixing ring II, the fixing ring II is fixedly connected with the bottom plate 105 through a screw, one end of the pull rod 201, which is positioned outside the spring cylinder I202, is provided with a fixing ring I, and the fixing ring is sleeved on the L-shaped hook 104. When the wedge 106 pushes the brake shoe 102 to press towards the wheel hub to brake the vehicle, the first return spring 203 and the second return spring 208 stretch. When the brake pedal is released, the electric cylinder is not powered on, the push rod drives the push block to return, and the brake shoe 102 returns under the tension action of the first return spring 203 and the second return spring 208.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wedge brake assembly spring characterized by: comprising a base plate (105); a shell (101) is arranged on one side of the bottom plate (105) in a matching way; an electric cylinder, a push rod, a push block and a wedge block (106) are sequentially arranged in the shell (101), and the electric cylinder is electrically connected with an external power supply through an external brake pedal; one end of the wedge block (106) is fixedly connected with a brake shoe (102); a brake pad (103) is arranged on the outer side surface of the brake shoe (102); an L-shaped hook (104) is arranged on the inner side surface of the brake shoe (102); a return spring assembly (200) is connected between the L-shaped hook (104) and the bottom plate (105); the return spring assembly (200) comprises a first spring cartridge (202); through holes are formed in the two ends of the first spring barrel (202); one end of the first spring cylinder (202) is connected with a second spring cylinder (207); a pull rod (201) is inserted into the through hole, and the pull rod (201) penetrates through the through hole and extends into the second spring cylinder (207); a second return spring (208) is connected between one end of the pull rod (201) extending into the second spring cylinder (207) and the inner wall of the second spring cylinder (207); one end of the pull rod (201) positioned outside the spring cylinder I (202) is provided with a fixing ring I; a pull block (204) is fixedly arranged on a pull rod (201) which is arranged in the first spring cylinder (202) and close to the second spring cylinder (207); a first return spring (203) is connected between the pull block (204) and the inner wall of the first spring barrel (202) far away from the second spring barrel (207); one end of the second spring cylinder (207) is connected with the first spring cylinder (202), the other end of the second spring cylinder is provided with a lug, and threaded holes I are uniformly distributed in the lug; the convex block is connected with a fixing rod (210) in a matching mode through a bolt (209), one end of the fixing rod (210) is provided with a second fixing ring, the other end of the fixing rod is provided with a groove, and the groove wall of the groove is correspondingly and uniformly provided with a second threaded hole.

2. The wedge brake assembly spring of claim 1, wherein: radiating holes are uniformly distributed on the brake pad (103).

3. The wedge brake assembly spring of claim 1, wherein: and a roller is arranged on the side surface of the push block close to the wedge block (106).

4. The wedge brake assembly spring of claim 1, wherein: an oil filling port is formed in the first spring barrel (202), and a sealing valve (206) is mounted on the oil filling port.

5. The wedge brake assembly spring of claim 1, wherein: and a sealing ring (205) is arranged between the through hole and the pull rod (201).