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Hydraulic jacking device

A jacking device and jacking technology, applied in the direction of lifting devices, mobile jacks, etc., can solve problems such as inconvenience, rollover of chariots, and high labor intensity of maintenance personnel

Inactive Publication Date: 2013-03-06
PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this method of operation makes the labor intensity of the maintenance personnel high; Rollover, the consequences are unimaginable
Especially when the jacking height far exceeds the height of the bottom of the vehicle from the ground, it is inconvenient to use a manual jack to operate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Under normal working conditions, the motor drives the main pump to suck pressure oil from the oil tank through the oil filter, and after the superimposed valve group, it enters the lower chamber of the two oil cylinders at the same time, pushing the piston to extend outward step by step, and then pushes the vehicle up. At the same time, the oil in the upper chamber of the oil cylinder flows back to the oil tank through the stacked valve group, completing the jacking process of the vehicle. If the motor and main pump are damaged or the system is powered off, the operator can also complete the above jacking operation by operating the manual pump. In addition, for the sake of safety, a hydraulically controlled one-way valve is installed in the system. In the event of a sudden power failure of the system during the jacking process, the locking function of the valve can prevent the vehicle from falling rapidly due to the vehicle's own weight.

[0013] When it is necessary fo...

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PUM

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Abstract

The invention discloses a hydraulic jacking device used for army tank seal and maintenance. The hydraulic jacking device mainly comprises an oil tank, a power group, a sandwich valve group, an oil pipe, a working cylinder and a bearing device trolley. According to the device, electric jacking can be realized, and manual jacking can be adopted in an emergency state; a traveling wheel is arranged at the bottom of the cylinder, so that the cylinder can conveniently move; the top of the cylinder has a spherical hinge structure, and a certain inclined jacking can be borne; and according to the system, two cylinders are synchronously jacked through a throttling valve. The hydraulic jacking device is simple in structure, the vehicles can be automatically and synchronously jacked during vehicle seal and maintenance in the army, the working efficiency is greatly improved, and the labor intensity is reduced.

Description

technical field [0001] The invention relates to a hydraulic jacking device used for the storage and maintenance of troop tanks. Background technique [0002] At present, when the troops need to jack up the chariot for tank storage and tank maintenance, especially tire maintenance or replacement, the common way is to use a manual jack to jack up the front, rear, left, and right four support points of the chariot and then put them into a suitable Skids are used for support. On the one hand, this method of operation makes the labor intensity of the maintenance personnel high; Rollover, the consequences are unimaginable. Especially when the jacking height far exceeds the height of the bottom of the car from the ground, it is inconvenient to utilize a manual jack to operate. [0003] The electric motor is used to drive the hydraulic pump, and the hydraulic cylinder is driven to lift the chariot, so that the front (or rear) bridge of the chariot can be jacked up at the same tim...

Claims

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Application Information

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IPC IPC(8): B66F5/04
Inventor 米双山韩翠娥刘鹏远刘东升徐亚卿聂香振
Owner PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE