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Motor-driven hydraulic lifting machine for mounting urban rail vehicle tractor body

A technology for urban rail vehicles and elevators, applied in the direction of hoisting devices, etc., can solve the problems of labor, danger, side jumping, etc., and achieve the effects of saving man-hours and costs, safe and reliable operation, and flexible and convenient movement.

Inactive Publication Date: 2012-05-16
CRRC DALIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of jacks to install the lower traction body has the following disadvantages: several employees are required to move the support in the ditch, which is very laborious; to move the support to the designated position, if the stroke of the jack is not enough, pads must be added to the support; Not fixed, there is a risk of side jumping if subjected to a horizontal force component

Method used

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  • Motor-driven hydraulic lifting machine for mounting urban rail vehicle tractor body
  • Motor-driven hydraulic lifting machine for mounting urban rail vehicle tractor body
  • Motor-driven hydraulic lifting machine for mounting urban rail vehicle tractor body

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Embodiment Construction

[0018] Now in conjunction with accompanying drawing, the present invention will be further described: with reference to figure 1 , the bogie 1 sits on the track 2 through the wheel, the spacer composition 3, the composite spring 4, and the gland 5 are set on the center pin 14 and pressed into the center tube 13 of the bogie, and the traction body locks the nut 6 Tighten the lower end of the center pin 14 to complete the connection between the car body and the bogie. In order to assemble spacer components 3, composite springs 4, gland 5, and locking nut 6 of the traction body, an electro-hydraulic lift is designed, which includes a hydraulic cylinder 8 and an electro-hydraulic pump 12, and the hydraulic cylinder 8 and the electro-hydraulic pump 12 are seated On the vehicle frame 9, four damping wheels 10 are arranged at the bottom of the vehicle frame. The damping wheels 10 are purchased parts. The model of the damping wheels 10 is SA620PSRCC, which is produced by Universal Cas...

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PUM

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Abstract

The invention discloses a motor-driven hydraulic lifting machine for mounting an urban rail vehicle tractor body, wherein the bottom of a vehicle frame (9) is provided with four shock absorption wheels (10); the vehicle frame (9) is provided with a hydraulic cylinder (8) and a motor-driven hydraulic pump (12); and the top of a piston rod of the hydraulic cylinder (8) is provided with a top pressing spacer bush component (3), a combined spring (4) and a saddle seat (7) of a pressing cover (5). The motor-driven hydraulic lifting machine comprises the hydraulic cylinder and the motor-driven hydraulic pump, the lifting height regulating range of the great-stroke hydraulic cylinder is large, the components such as the spacer bush component, the combined spring and the pressing cover can be installed in position one time, the operation is simple, the vehicle frame is convenient to move, and the urban rail vehicle tractor body is safe, reliable, rapid and efficient to install.

Description

technical field [0001] The invention relates to an electro-hydraulic lifter for installing traction bodies of urban rail vehicles. Background technique [0002] At present, there are mainly two installation methods of the lower traction body in China: one is the installation method of manual hydraulic lifting; the other is the installation method of placing a jack on the support. [0003] The method of installing the lower traction body in the manual hydraulic lifting method is that a hydraulic cylinder and a manual hydraulic pump are installed on a mobile trolley, and the lifting operation is performed in a manual pressurized manner. The manual hydraulic lifting method is used to install the lower traction body, that is, every time the manual hydraulic pump reciprocates, it can only be raised by a few tens of millimeters, and the lifting height is relatively small. When the body is assembled, the composite spring and other components can only be installed on the traction p...

Claims

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Application Information

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IPC IPC(8): B66F9/06B66F9/075B66F9/22
Inventor 孙莉唐林许有军黄中跃陈志强赵炳臣
Owner CRRC DALIAN CO LTD
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