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Multiple units tight-lock type hook dismounting process

A close-connected EMU technology, which is applied in transportation and packaging, railway car body parts, railway vehicle coupling accessories, etc., can solve the problems of difficult disassembly and assembly of couplers, inconvenient on-site operation, and bulky volume, etc., to save operating time , improve efficiency, small size effect

Inactive Publication Date: 2010-11-17
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above factors make it difficult to disassemble the coupler
However, the existing disassembly equipment is relatively bulky and inconvenient for on-site operation. Therefore, in the vehicle maintenance process, the disassembly and installation of the coupler needs to be disassembled by special disassembly equipment with small size, safe and convenient operation, and high reliability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0030] Specific embodiment one: a kind of EMU close-connected coupler disassembly process, using a mobile disassembly trolley to disassemble the coupler, the steps are as follows:

[0031] (1) Disassembly process

[0032] A. First remove the connectors around the coupler, and then install the coupler lifting device of the corresponding model on the hydraulic lifting beam of the mobile disassembly trolley;

[0033] B. Use an electric forklift to lift the mobile disassembly trolley with a sling or a forklift arm, then place it on the track bridge, and align it with the close coupling part on the vehicle;

[0034] C. Push and move the disassembly trolley so that the coupler lifting device is placed at the bottom of the coupler, move the support block on the lifting device to the support position on the coupler body, and clamp the coupler firmly to avoid moving the trolley and hurting people during disassembly work;

[0035] D. The support cylinder, the balance cylinder and the h...

specific Embodiment 2

[0051] Specific embodiment two: different from specific embodiment one:

[0052]Taking the CRH2 coupler as an example, during the disassembly process, after the disassembly of the coupler described in the process H of step (1), the buffer must be disassembled. Move the hydraulic lifting small beam to make the trolley enter the bottom of the car to the installation position of the coupler buffer, replace the lifting device, use the lifting device with an extended arm; remove the bolts, remove the mounting plate at the bottom of the coupler buffer, tighten the process bolts, The buffer can be dropped onto the lifting device, move the dismantling trolley, move the coupler buffer out of the end of the motor car body, then tie the coupler buffer firmly, use an electric forklift to remove the removed buffer, and place the delivery car Go to the maintenance station together with the coupler for maintenance.

[0053] During the installation process, before installing the coupler lift...

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PUM

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Abstract

The invention relates to a motor train unit sealing typed coupler disassembly / assembly process which adopts a movable disassembly / assembly dolly to carry out the disassembly and assembly of the coupler and comprises disassembly process and assembly process. As the movable disassembly / assembly dolly has small volume, smart operation and is suitable for site operation; furthermore, different coupler lifting devices can be arranged on the dolly according to the train types, the disassembly / assembly of the invention is applicable for the disassembly / assembly of a plurality of couplers, improves the efficiency of the coupler disassembly / assembly, can adjust the distance of the lifting device and the coupler by an oil cylinder adjusting lifting small crossbeam, has high reliability; meanwhile, the disassembly / assembly process is provided with a special spanner used for the disassembly / assembly of bolts and a brake device, thus saving the operation time of the working personnel and ensuring the safety of the working personnel.

Description

technical field [0001] The invention relates to a disassembly and assembly process of a railway vehicle coupler, in particular to a disassembly and assembly process of a close-connected coupler of an EMU. Background technique [0002] At present, the couplers of various types of CRH EMUs in operation are tight-fitting couplers, and the couplers of each model are divided into automatic couplers for the head car and connected couplers for the middle car. The shape, height, installation size and connection method of the coupler and the car body of various models are different; the heaviest coupler of the head car is about 800kg, and the weight of the middle coupler is between 200kg and 300kg, and the coupler is installed inside the car end. The above factors make it difficult to disassemble and assemble the coupler. And existing dismounting equipment volume is bigger, and on-the-spot operation is very inconvenient, therefore, in vehicle overhaul process, the dismounting and in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61G7/00
Inventor 陈克芬马飞
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST