CN219035189U

CN219035189U - High strength braking cylinder convenient to dismouting

Info

Publication number: CN219035189U
Application number: CN202223342935.7U
Authority: CN
Inventors: 王娟; 赵培法; 程伟; 曾志; 刘保健; 刘现综; 张卫国
Original assignee: Shandong Besten Pneumatic Technology Co ltd; Shandong University
Current assignee: Shandong Besten Pneumatic Technology Co ltd; Shandong University
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-16
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, and relates to a brake cylinder for decelerating a vehicle in the process of disassembling a train set. The high-strength brake cylinder is capable of being assembled without special assembly equipment and special technicians, and long in service life. The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, which comprises a front cover and a cylinder barrel, wherein the front cover is connected with a fixed end cover, the fixed end cover is sleeved on the outer side of the cylinder barrel, two sides of a butt joint surface of the fixed end cover and the front cover are respectively provided with a step, the steps on the two sides are combined into an inner groove, the outer wall of the front part of the cylinder barrel is provided with an outer groove, the positions of the outer groove and the inner groove correspond to each other to form a mounting groove, and a fixed check ring is arranged in the mounting groove.

Description

High strength braking cylinder convenient to dismouting

Technical Field

The utility model relates to the technical field of cylinders, in particular to a high-strength braking cylinder convenient to assemble and disassemble.

Background

Humps are an important component of a train consist yard that functions to break up a train consist using potential energy created by the weight of the vehicle and the slope of the hump. When the vehicle is disassembled, the whole train is pushed to the hump by the shunting machine, when the forefront train is close to the peak, the coupler between vehicles is lifted, and the gravity of the vehicles is utilized, so that different vehicles have different dead weights and different running speeds, the train safely enters a preset stock way, and is stopped at a preset line position, so that the automatic shunting operation efficiency can be greatly improved. The key device for executing braking in the process of automatically sliding and releasing the car set along the slope is a high-strength braking cylinder, and plays an important role in safe production on site. The high-strength brake cylinder is used as a key component, and special personnel are required to be regularly maintained and replaced in order to ensure safe production.

The high-strength brake cylinder is used as a key component, and special personnel are required to maintain, repair, maintain and replace the brake cylinder regularly in order to ensure safe production. Because the prior connecting and fixing structure of the front end cover and the cylinder barrel of the brake cylinder adopts an inner check ring structure, a special disassembly and assembly table is required for disassembly and assembly, and maintenance cannot be carried out on site. And the dead weight of the air cylinder is 40 kg, when the sealing ring is replaced, the air cylinder needs to be detached from the site to be returned to a special maintenance person for replacement, and the air cylinder needs to be sent to a site work area for installation after the sealing ring is replaced, so that the air cylinder is very troublesome in site detachment and installation, labor and time are wasted, and the transportation safety risk is high. The sealing ring is replaced by special disassembly and assembly table and test table equipment, and the special equipment has requirements on environment and has poor flexibility.

At present, the mounting structure of the front cover, the fixed retainer ring and the fixed disk of the high-strength brake cylinder is a built-in retainer ring groove fixing structure, a groove is required to be processed in the inner hole of the cylinder barrel for mounting the fixed ring, and due to the existence of the groove structure, when the piston is assembled, a Y-shaped sealing ring is mounted on the piston, and when the Y-shaped sealing ring passes through the groove, the Y-shaped sealing ring can be clamped into the groove, so that the normal mounting cannot be performed.

Special disassembly and assembly table equipment is needed to assist in ensuring normal installation, and filler is needed to be installed in the groove before the piston is installed so as to ensure that the piston can be normally installed. Due to the lack of reliability of the packing itself, it is possible for the piston to scratch the seal ring as it passes through, resulting in air leakage or reduced service life.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a high-strength brake cylinder which can be assembled without special assembly equipment and special technicians and has long service life.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, which comprises a front cover and a cylinder barrel, wherein the front cover is connected with a fixed end cover, the fixed end cover is sleeved outside the cylinder barrel, two sides of a butt joint surface of the fixed end cover and the front cover are respectively provided with a step, the steps at the two sides are combined into an inner groove, the outer wall of the front part of the cylinder barrel is provided with an outer groove, the positions of the outer groove and the inner groove correspond to each other to form a mounting groove, and a fixed check ring is arranged in the mounting groove.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, wherein an annular groove is formed in the rear part of a front cover, and a cylinder barrel is inserted into the annular groove and is matched with the front cover.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, wherein a first groove is formed in the inner wall of an annular groove, and a first sealing ring is arranged in the first groove.

The utility model provides a high-strength brake cylinder convenient to disassemble and assemble, wherein the outer diameter of a fixed end cover is the same as that of a front cover, and the inner diameter of the fixed end cover is slightly larger than that of a cylinder barrel.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, wherein a fixed check ring is two semicircular rings, and the two semicircular rings are arranged in a mounting groove and combined into a whole circle.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, wherein a through step hole is processed in the middle of the end face of a front cover, a front cover composite sleeve is arranged in the step hole, and a piston rod penetrates through the step hole and the front cover composite sleeve and stretches into a cylinder barrel.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, wherein a second sealing ring is arranged in a front cover composite sleeve, and the inner walls of the front cover composite sleeve and the second sealing ring are contacted with the outer wall of a piston rod.

The utility model discloses a high-strength brake cylinder convenient to disassemble and assemble, wherein a piston is arranged on a piston rod, a second groove and a third groove are processed on the outer wall of the piston, a piston sealing ring is arranged in the second groove, a supporting ring is arranged in the third groove, and the outer walls of the piston sealing ring and the supporting ring are contacted with the inner wall of a cylinder barrel.

The utility model provides a high-strength brake cylinder convenient to disassemble and assemble, wherein two second grooves are respectively arranged on the front side and the rear side of a third groove.

The utility model relates to a high-strength brake cylinder convenient to disassemble and assemble, wherein a piston sealing ring is a Y-shaped sealing ring.

The high-strength brake cylinder convenient to disassemble and assemble is different from the prior art in that the high-strength brake cylinder convenient to disassemble and assemble is characterized in that the fixed end cover and the fixed check ring are arranged on the outer side of the cylinder barrel and are matched with the protruding structure of the edge of the front cover, so that the structures such as the fixed check ring and the sealing ring can be directly removed and replaced on site by adopting a simple tool, professional technicians and professional equipment are not required to operate on a cylinder disassembly table, and the labor cost and equipment cost investment of enterprises are reduced. The fixed end cover and the fixed check ring are positioned on the outer side of the cylinder barrel, and when the piston and the cylinder inner sealing ring are installed, the fixed end cover and the fixed check ring are not contacted, so that the abrasion to the cylinder inner structure during the assembly of the cylinder can be reduced, and the service life of the cylinder is prolonged. The cylinder can compress the time for replacing the cylinder on site, can complete the maintenance of the cylinder without shutdown, and greatly improves hump coding and decoding efficiency.

The high-strength brake cylinder convenient to assemble and disassemble is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a high strength brake cylinder of the present utility model for easy disassembly;

FIG. 2 is a top view of the high strength brake cylinder of the present utility model for easy disassembly;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an exploded view of the high strength brake cylinder of the present utility model for easy disassembly;

the labels in the figures are: 1-a rear cover; 2-cylinder barrel; 3-fixing the end cover; 4-a front cover; 5-a piston rod; 6-a piston sealing ring; 7-a support ring; 8-fixing a retainer ring; 9-a first sealing ring; 10-a piston; 11-fixing the nut.

Detailed Description

The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the high-strength brake cylinder of the present utility model, which is easy to be disassembled and assembled, includes a cylinder body structure composed of a front cover 4, a cylinder tube 2 and a rear cover 1. An annular groove is formed in the rear portion of the front cover 4, and the cylinder barrel 2 is inserted into the annular groove and is mounted in a matched mode with the front cover 4. An oil inlet and an oil outlet are formed in the cylinder barrel 2, and the cylinder barrel 2 is fixedly connected with the rear cover 1. In this embodiment, the connection between the cylinder tube 2 and the rear cover 1 is welding.

The front end face of the front cover 4 is provided with a plurality of threaded holes penetrating through the front cover 4 in a surrounding mode, and bolts installed in the threaded holes fixedly connect the front cover 4 with the fixed end cover 3. The fixed end cover 3 is positioned at the rear of the front cover 4. The fixed end cover 3 is of an annular structure and is sleeved on the outer side of the cylinder barrel 2. The external diameter of the fixed end cover 3 is the same as the external diameter of the front cover 4, the internal diameter of the fixed end cover 3 is slightly larger than the external diameter of the cylinder barrel, the external part of the fixed end cover 3 is ensured to be consistent with the edge position of the front cover 4, the internal part is contacted with the external wall of the cylinder barrel 2, and the fixed end cover can be stably installed outside the cylinder barrel 2. Two sides of the butt joint surface of the fixed end cover 3 and the front cover 4 are respectively provided with a step, and the steps at the two sides are combined into an inner groove.

An outer groove is processed on the outer wall of the front part of the cylinder barrel 2, the outer groove corresponds to the position of the inner groove, a complete mounting groove is formed, and a fixed retainer ring 8 is placed in the mounting groove. The fixed retainer ring 8 is two semicircular rings, and the semicircular rings are convenient to detach. The fixed retainer ring 8 is combined into a whole round retainer ring in the mounting groove.

The inner wall of the annular groove is provided with a first groove, and a first sealing ring 9 is arranged in the first groove, so that a seal is formed between the inner wall of the cylinder barrel 2 and the annular groove on the front cover 4.

The middle part of the end face of the front cover 4 is provided with a through step hole, a front cover composite sleeve is arranged in the step hole, and a piston rod 5 penetrates through the step hole and the front cover composite sleeve and stretches into the cylinder barrel 2. The second sealing ring is arranged in the front cover composite sleeve, and the inner walls of the front cover composite sleeve and the second sealing ring are contacted with the outer wall of the piston rod 5. The second sealing ring can form a seal between the front cover composite sleeve and the piston rod 5.

The piston rod 5 is provided with a piston 10, and the outer wall of the piston 10 is provided with a second groove and a third groove, wherein two second grooves are respectively arranged on the front side and the rear side of the third groove. A piston sealing ring 6 is arranged in the second groove, a supporting ring 7 is arranged in the third groove, and the outer walls of the piston sealing ring 6 and the supporting ring 7 are contacted with the inner wall of the cylinder barrel 2. In this embodiment, the piston seal 6 is a Y-seal, which provides a seal when the piston reciprocates. A fixing nut 11 is mounted at the end of the piston rod 5 for fixing the piston 10.

According to the high-strength brake cylinder convenient to disassemble and assemble, the fixed end cover and the fixed check ring are arranged on the outer side of the cylinder barrel and are matched with the protruding structure of the edge of the front cover, so that the fixed check ring, the sealing ring and other structures can be directly removed and replaced on site by adopting a simple tool, a professional technician and professional equipment are not required to operate on a cylinder disassembly and assembly table, and the labor cost and the equipment cost investment of enterprises are reduced. The fixed end cover and the fixed check ring are positioned on the outer side of the cylinder barrel, and when the piston and the cylinder inner sealing ring are installed, the fixed end cover and the fixed check ring are not contacted, so that the abrasion to the cylinder inner structure during the assembly of the cylinder can be reduced, and the service life of the cylinder is prolonged. The cylinder can compress the time for replacing the cylinder on site, can complete the maintenance of the cylinder without shutdown, and greatly improves hump coding and decoding efficiency.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims

1. High strength braking cylinder convenient to dismouting, its characterized in that: the novel cylinder comprises a front cover and a cylinder barrel, wherein the front cover is connected with a fixed end cover, the fixed end cover is sleeved outside the cylinder barrel, two sides of a butt joint surface of the fixed end cover and the front cover are respectively provided with a step, the steps on the two sides are combined into an inner groove, an outer groove is formed in the outer wall of the front part of the cylinder barrel, the outer groove corresponds to the position of the inner groove, a mounting groove is formed, and a fixed check ring is placed in the mounting groove.

2. The easy-to-disassemble high strength brake cylinder as claimed in claim 1, wherein: the rear part of the front cover is provided with an annular groove, and the cylinder barrel is inserted into the annular groove to be matched with the front cover.

3. The easy-to-disassemble high strength brake cylinder as claimed in claim 2, wherein: a first groove is formed in the inner wall of the annular groove, and a first sealing ring is placed in the first groove.

4. The easy-to-disassemble high strength brake cylinder as claimed in claim 1, wherein: the outer diameter of the fixed end cover is the same as that of the front cover, the inner diameter of the fixed end cover is larger than that of the cylinder barrel, and the outer part of the fixed end cover is kept consistent with the edge position of the front cover, and the inner part of the fixed end cover is contacted with the outer wall of the cylinder barrel.

5. The easy-to-disassemble high strength brake cylinder as claimed in claim 1, wherein: the fixed check ring is two semicircular rings and is arranged in the mounting groove to be combined into a whole circle.

6. The easy-to-disassemble high strength brake cylinder as claimed in claim 1, wherein: the middle part of the end face of the front cover is provided with a through step hole, a front cover composite sleeve is arranged in the step hole, and a piston rod penetrates through the step hole and the front cover composite sleeve and stretches into the cylinder barrel.

7. The easy-to-disassemble high strength brake cylinder as claimed in claim 6, wherein: the inside second sealing washer that is provided with of the compound cover of protecgulum, the inner wall of the compound cover of protecgulum and second sealing washer all contacts with the outer wall of piston rod.

8. The easy-to-disassemble high strength brake cylinder as claimed in claim 6 or 7, wherein: the piston rod is provided with a piston, the outer wall of the piston is provided with a second groove and a third groove, a piston sealing ring is arranged in the second groove, a supporting ring is arranged in the third groove, and the outer walls of the piston sealing ring and the supporting ring are contacted with the inner wall of the cylinder barrel.

9. The easy-to-disassemble high strength brake cylinder as claimed in claim 8, wherein: the second grooves are respectively arranged at the front side and the rear side of the third groove.

10. The easy-to-disassemble high strength brake cylinder as claimed in claim 8, wherein: the piston sealing ring is a Y-shaped sealing ring.