CN219325206U

CN219325206U - Multifunctional press for coupler buffer of rail transit vehicle

Info

Publication number: CN219325206U
Application number: CN202320888519.2U
Authority: CN
Inventors: 王慧敏; 宋袁雁; 王丹星; 田丽; 王凯
Original assignee: Shanghai Hamp Hydraulic Machinery Co ltd
Current assignee: Shanghai Hamp Hydraulic Machinery Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-07-11
Anticipated expiration: 2033-04-19

Abstract

The utility model relates to a multifunctional press for a coupler buffer of a rail transit vehicle, and belongs to the technical field of overhauling equipment of rail transit vehicles. Comprises a base, a frame column, a cross beam, a hollow hydraulic cylinder and an auxiliary installation adjusting piece; the base is provided with a left frame column and a right frame column which are vertical to the horizontal plane, and a horizontal cross beam is arranged between the left frame column and the right frame column; a hollow hydraulic cylinder is arranged on the cross beam; the hollow hydraulic cylinder comprises a hollow plunger and a telescopic hydraulic cylinder saddle; a space for installing a buffer or a crushing tube is arranged between the left frame column and the right frame column below the hydraulic cylinder saddle. The utility model can realize the function of one machine for two purposes, not only can meet the periodical overhaul of the buffer, but also can meet the random state repair of the crushing pipe, and reduces the cost of using the field device configuration.

Description

Multifunctional press for coupler buffer of rail transit vehicle

Technical Field

The utility model relates to a multifunctional press for a coupler buffer of a rail transit vehicle, and belongs to the technical field of overhauling equipment of rail transit vehicles.

Background

When the tight-joint coupler of the vehicles such as subways, light rails and high-speed motor train units is overhauled at the 3 rd level in the prior art, the buffer (containing silicone oil, cement and gas-liquid type) and the crushing pipe are required to be disassembled and overhauled, and when the buffer and the crushing pipe are overhauled, two different special presses are required to be used for applying axial force so as to respectively disassemble and assemble the end cover of the buffer and the lock nut of the crushing pipe. Namely, different special hydraulic presses are adopted for the buffer and the crushing pipe respectively at present. The overhauling of the buffer belongs to the periodic overhauling. The maintenance has stronger periodicity, and the maintenance period is usually not more than 10 years. And a special press is configured in the overhaul base workshop to carry out overhaul operation according to the overhaul period of the buffer. The maintenance of the crushing pipe belongs to state maintenance. When the triggering device on the crushing pipe is sheared off or lost, the maintenance is only needed. The triggering device being sheared off means that the vehicle is impacted at a higher speed, causing the crush tube to deform absorbing energy, which is a random event. And a special press is configured in an overhaul base workshop to carry out random overhaul operation according to the state of the crushing pipe. At present, a special press for a buffer is in an idle state for a long time in a maintenance base workshop, so that certain resource waste is caused. Therefore, there is a need in the art to develop a novel structure of a dedicated press that can meet both periodic maintenance of the buffer and random state maintenance of the crush tube.

Disclosure of Invention

The utility model aims to solve the technical problems that how to obtain a special press with a novel structure can not only meet the periodic maintenance of a buffer, but also meet the random state maintenance of a crushing pipe.

In order to solve the problems, the technical scheme adopted by the utility model is to provide a multifunctional press for a coupler buffer of a rail transit vehicle, which comprises a base, a frame column, a cross beam, a hollow hydraulic cylinder and an auxiliary installation adjusting piece; the base is provided with a left frame column and a right frame column which are vertical to the horizontal plane, and a horizontal cross beam is arranged between the left frame column and the right frame column; a hollow hydraulic cylinder is arranged on the cross beam; the hollow hydraulic cylinder comprises a hollow plunger and a telescopic hydraulic cylinder saddle; a space for installing a buffer or a crushing tube is arranged between the left frame column and the right frame column below the hydraulic cylinder saddle.

Preferably, the auxiliary installation adjusting piece comprises a lock nut wrench for disassembling and assembling the crushing pipe, a crushing pipe heightening cushion block and a buffer press-fitting cushion block for shortening the extending stroke of the hydraulic cylinder saddle, and a buffer fixing base for keeping the buffer in an upright state.

Preferably, a hollow channel for the passage of a lock nut wrench is arranged in the hollow hydraulic cylinder.

Preferably, a safety bracket for preventing the to-be-detected piece from overturning is arranged between the left frame column and the right frame column.

Preferably, the cross beam is provided with a bolt for adjusting the position of the cross beam along the frame column.

Preferably, the base is provided with an electric pump support, and the electric pump support is provided with an electric pump.

Preferably, the base is provided with a detachable trolley support, and the detachable trolley support is provided with a transporting trolley for transporting the to-be-detected piece.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model adopts the hollow hydraulic cylinder arranged on the cross beam to apply axial loading force to the buffer and the crushing pipe in overhauling. The hollow hydraulic cylinder is provided with a hollow plunger structure, so that the hollow hydraulic cylinder can realize the disassembly and assembly of the lock nut of the crushing pipe through the lock nut wrench when the axial loading force is applied.

The utility model adopts the heightened cushion block of the crushing pipe and the buffer positioning base, realizes the reliable positioning of the buffer and the crushing pipe, and prevents the crushing pipe from overturning in the moving process through the safety bracket.

The utility model can realize the function of one machine for two purposes, not only can meet the periodical overhaul of the buffer, but also can meet the random state repair of the crushing pipe, and reduces the cost of using the field device configuration.

Drawings

FIG. 1 is a schematic diagram of a buffer structure;

FIG. 2 is a schematic view of a crush tube;

FIG. 3 is a schematic diagram of the structure of the present utility model in front and side view;

FIG. 4 is a schematic view of a hollow hydraulic cylinder;

FIG. 5 is a schematic diagram of a front and side view of the utility model as applied to a damper;

fig. 6 is a schematic front and side view of the present utility model as applied to a crush tube.

Reference numerals: 1. a buffer; 1.1. a hook rod; 1.2. an end cap; 1.3. a ring spring assembly; 1.4. a buffer core; 1.5. a housing; 1.6. a rubber bearing; 2. crushing the tube; 2.1. a pressurizing tube; 2.2. a lock nut; 2.3. a triggering device; 2.4. a swelling block; 2.5. a crumple pipe; 2.6. guiding the core bar; 3. a frame column; 4. a cross beam; 5. a plug pin; 6. a hollow hydraulic cylinder; 6.1. a hydraulic cylinder block; 6.2. a hollow plunger; 6.3. a hydraulic cylinder saddle; 7. a hydraulic cylinder mounting plate; 8. an electric pump bracket; 9. a detachable trolley bracket; 10. an electric pump; 11. a transporting trolley; 12. a safety bracket; 13. a lock nut wrench; 14. heightening a cushion block of the crushing pipe; 15. the buffer is pressed and installed with a cushion block; 16. a buffer fixing base; 17. a base.

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments accompanied with the accompanying drawings are described in detail as follows:

as shown in fig. 1 to 6, the present utility model provides a multifunctional press for a coupler buffer of a rail transit vehicle, comprising a base 17, a frame column 3, a cross beam 4, a hollow hydraulic cylinder 6 and an auxiliary installation adjusting piece; the base 17 is provided with a left frame column 3 and a right frame column 3 which are vertical to the horizontal plane, and a horizontal cross beam 4 is arranged between the left frame column 3 and the right frame column 3; a hollow hydraulic cylinder 6 is arranged on the cross beam 4; the hollow hydraulic cylinder 6 comprises a hollow plunger 6.2 and a telescopic hydraulic cylinder saddle 6.3; a space for installing the buffer 1 or the crushing tube 2 is arranged between the left frame column 3 and the right frame column 3 below the hydraulic cylinder saddle 6.3. The auxiliary installation adjusting piece comprises a lock nut wrench 13 for disassembling and assembling the crushing pipe 2, a crushing pipe heightening cushion block 14 and a buffer press-mounting cushion block 15 for shortening the extending stroke of the hydraulic cylinder saddle 6.3, and a buffer fixing base 16 for keeping the buffer 1 in an upright state. The hollow hydraulic cylinder 6 is provided with a hollow passage for the passage of a lock nut wrench 13. A safety bracket 12 for preventing the to-be-detected piece from overturning is arranged between the left frame column 3 and the right frame column 3. The cross beam 4 is provided with a bolt 5 for adjusting the height of the cross beam 4 along the frame column 3. The base 17 is provided with an electric pump support 8, and the electric pump support 8 is provided with an electric pump 10. The base 17 is provided with a detachable trolley bracket 9, and the detachable trolley bracket 9 is provided with a transporting trolley 11 for transporting the to-be-detected piece.

Examples

As shown in fig. 1, the buffer 1 mainly includes: a hook rod 1.1, an end cover 1.2, a ring spring assembly 1.3, a buffer core 1.4, a shell 1.5 and a rubber bearing 1.6. The overhauling of the buffer 1 belongs to periodic overhauling. The damper 1 needs to be disassembled for replacement of the ring spring assembly 1.3 and the damper core 1.4, etc. during maintenance. The disassembly and assembly of the end cover 1.2 are key steps during maintenance. When the buffer 1 is overhauled, a press machine is adopted to apply axial force to the hook rod 1.1, so that the ring spring component 1.3 and the buffer core 1.4 are compressed; detaching the end cap 1.2 while maintaining the axial force applied to the hook stem 1.1 by the press; then the axial force of the press is removed, and the ring spring assembly 1.3, the buffer core 1.4 and other components are sequentially taken out from the shell 1.5 for periodic replacement; then, a press machine is used for applying axial force to the hook rod 1.1, and the end cover 1.2 is reinstalled under the condition of pressure retention.

As shown in fig. 2, the main structure of the crush tube 2 is: the device comprises a pressurizing pipe 2.1, a locking nut 2.2, a triggering device 2.3, an expanding block 2.4, a crumple pipe 2.5 and a guide core rod 2.6. The maintenance of the crushing pipe 2 belongs to state maintenance. When the triggering device 2.3 on the crushing tube 2 is sheared off or lost, it needs to be disassembled to replace the relevant parts. The disassembly and assembly of the lock nut 2.2 are key steps during maintenance. When the crushing pipe 2 is overhauled, a press machine is adopted to apply axial force to the pressurizing pipe 2.1 and pressure maintaining is carried out; then the locking nut 2.2 is disassembled by extending the inner hole of the pressurizing pipe 2.1 into a special tool; the relevant parts of the crushing tube 2 can be replaced later; after the replacement is completed, a press machine is used for applying axial force to the pressurizing pipe 2.1 and maintaining pressure, and the locking nut 2.2 is screwed by extending the inner hole of the pressurizing pipe 2.1 into a special tool.

As shown in fig. 3-6, the utility model provides a multifunctional press for a coupler buffer of a rail vehicle, which can meet the maintenance requirements of the buffer 1 and the crushing pipe 2. The multifunctional press mainly comprises a frame column 3, a cross beam 4, a bolt 5, a hollow hydraulic cylinder 6, a hydraulic cylinder mounting plate 7, an electric pump bracket 8, a detachable trolley bracket 9, an electric pump 10, a transporting trolley 11 and a safety bracket 12.

The locking nut wrench 13, the crushing pipe heightening cushion block 14, the buffer press-fitting cushion block 15 and the buffer positioning base 16 are auxiliary tools.

The frame column 3 is used for loading the buffer 1 and the crushing tube 2 by axial pressure. The frame column 3 is provided with a cross beam 4, a hollow hydraulic cylinder 6, an electric pump bracket 8 and a detachable trolley bracket 9.

The beam 4 is provided with a hydraulic cylinder mounting plate 7, and the hollow hydraulic cylinder 6 is fixed on the hydraulic cylinder mounting plate 7. The beam 4 can be adjusted in height up and down on the frame column 3, and the position is adjusted and fixed by inserting and pulling the bolt 5.

The hollow hydraulic cylinder 6 adopts a hollow plunger structure and mainly comprises a hydraulic cylinder body 6.1, a hollow plunger 6.2 and a hydraulic cylinder saddle 6.3. The hollow plunger 6.2 can penetrate into a lock nut wrench 13 to disassemble and assemble the lock nut 2.2 of the crushing pipe 2; the cylinder saddle 6.3 mounted on the hollow plunger 6.2 can apply an axial force directly to the pressure tube 2.1 and the hook rod 1.1.

The electric pump support 8 is fixed to the side of the frame post 3 for placing the electric pump 10 required for the press.

The detachable carriage support 9 is placed on the operating side of the frame column 3 for the transport carriage 11 to slide thereon.

The transporting trolley 11 is used for transporting and overhauling the buffer 1 and the crushing pipe 2, and is used for going back and forth to the inner working area and the outer lifting area of the frame column 3.

The safety bracket 12 is used for fixing the buffer 1 and the crushing tube 2 which are involved in maintenance and preventing the buffer and the crushing tube from overturning during the moving process.

The lock nut wrench 13 is used for disassembling and assembling the lock nut 2.2 of the crushing pipe 2. It is ready for use by passing it inside the hollow plunger 6.2 of the hollow hydraulic cylinder 6. The crush tube heightening cushion 14 is used for adjusting the crush tube 2 to a proper working height, and plays a role in shortening the extending stroke of the hollow hydraulic cylinder 6. The buffer press-fitting cushion block 15 is used when the buffer 1 is overhauled, and plays a role in shortening the extending stroke of the hollow hydraulic cylinder 6. The damper positioning base 16 is used to fix the damper 1.

The main working flow of the utility model for overhauling the buffer 1 is as follows:

the buffer positioning base 16 and the transfer trolley 11 are fixed to each other, and the buffer 1 is lifted by using the crown block to the buffer positioning base 16. The transfer carriage 11 is pushed to transfer the buffer 1 to the inside of the frame column 3. A buffer press-fitting pad 15 is placed at the upper end of the buffer 1. The electric pump 10 is operated to drive the hollow hydraulic cylinder 6 to apply axial pressure to the damper 1, and the end cap 1.2 of the damper 1 is removed using a special tool.

The main working flow of the utility model aiming at the overhauling of the crushing pipe 2 is as follows:

the crushing pipe heightening cushion block 14 and the transporting trolley 11 are mutually fixed, and the crown block is used for lifting the crushing pipe 2 to the crushing pipe heightening cushion block 14. The transporting trolley 11 is pushed to transport the crushing pipe 2 into the frame column 3. The electric pump 10 is operated to drive the hollow hydraulic cylinder 6 to apply axial pressure to the crushing tube 2, and the lock nut 2.2 of the crushing tube 2 is disassembled using the lock nut wrench 13.

The utility model applies axial loading force to the buffer 1 in a top-down manner by mounting the hollow hydraulic cylinder 6 on the cross beam 4. By the hollow plunger structure of the hollow hydraulic cylinder 6, the lock nut wrench 13 is allowed to pass through the hollow plunger 6.2 while applying an axial loading force to the crushing tube 2, and the tightening nut 2.2 of the crushing tube 2 is disassembled. By mounting the crushing tube height increasing cushion block 14 and the buffer positioning base 16 on the transfer trolley 11, reliable positioning of the buffer 1 and the crushing tube 2, respectively, is achieved.

While the utility model has been described with respect to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims. Equivalent embodiments of the present utility model will be apparent to those skilled in the art having the benefit of the teachings disclosed herein, when considered in the light of the foregoing disclosure, and without departing from the spirit and scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. The multifunctional press for the coupler buffer of the rail transit vehicle is characterized by comprising a base, a frame column, a cross beam, a hollow hydraulic cylinder and an auxiliary installation adjusting piece; the base is provided with a left frame column and a right frame column which are vertical to the horizontal plane, and a horizontal cross beam is arranged between the left frame column and the right frame column; a hollow hydraulic cylinder is arranged on the cross beam; the hollow hydraulic cylinder comprises a hollow plunger and a telescopic hydraulic cylinder saddle; a space for installing a buffer or a crushing tube is arranged between the left frame column and the right frame column below the hydraulic cylinder saddle.

2. The multifunctional press for the coupler bumpers of rail vehicles according to claim 1, wherein the auxiliary installation adjusting member comprises a lock nut wrench for disassembling and assembling the crushing tube, a crushing tube heightening cushion block and a bumper press-fitting cushion block for shortening the extending stroke of the hydraulic cylinder saddle, and a bumper fixing base for keeping the bumper in an upright state.

3. The rail car coupler buffer multifunctional press of claim 1, wherein a hollow channel for a lock nut wrench to pass through is arranged in the hollow hydraulic cylinder.

4. The multifunctional press for the coupler buffer of the rail transit vehicle according to claim 1, wherein a safety bracket for preventing the to-be-inspected piece from overturning is arranged between the left frame column and the right frame column.

5. The multifunctional press for the coupler buffer of the rail transit vehicle according to claim 1, wherein the cross beam is provided with a bolt for adjusting the position of the cross beam along the frame column.

6. The multifunctional press for a coupler buffer of a rail transit vehicle according to claim 1, wherein the base is provided with an electric pump support, and the electric pump support is provided with an electric pump.

7. The multifunctional press for the coupler buffer of the rail transit vehicle according to claim 1, wherein the detachable trolley support is arranged on the base, and the transporting trolley for transporting the to-be-inspected piece is arranged on the detachable trolley support.