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Hydraulic lifting device for dump truck

A lifting device and dump truck technology, which is applied in the direction of tilt-bearing moving vehicles, etc., can solve the problems of loss of life and property, endanger the personal safety of drivers, damage dump vehicles, etc., to prevent vicious accidents, and protect personal and vehicle safety. Effect

Inactive Publication Date: 2012-03-28
JINAN HYDRAULIC PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Endanger the driver's personal safety and seriously damage the dump truck, causing great loss to people's lives and property

Method used

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  • Hydraulic lifting device for dump truck
  • Hydraulic lifting device for dump truck
  • Hydraulic lifting device for dump truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Such as figure 1 A specific embodiment shown includes a hydraulic lift control valve 1 in the cab, a control air pipe 2, a hydraulic oil tank 3, a low pressure oil pipe 4, a hydraulic distribution valve 5, a hydraulic oil pump 6, a high pressure oil pipe 7 and a lift cylinder 8. The lifting cylinder 8 is installed between the subframe 9 and the compartment 10, and the lifting and falling of the compartment 10 are controlled by the expansion and contraction of the piston rod of the lifting cylinder 8.

[0010] The oil inlet of the hydraulic oil pump 6 is connected to the hydraulic oil tank 3 through the low-pressure oil pipe 4, the oil outlet of the hydraulic oil pump 6 is connected to the oil inlet of the hydraulic distribution valve 5 through the high-pressure oil pipe 7, and the oil return port of the hydraulic distribution valve 5 is connected to the hydraulic oil tank 3. It is connected through the oil return pipe 11, and the oil outlet of the hydraulic distributio...

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Abstract

The invention discloses a hydraulic lifting device for a dump truck, and the hydraulic lifting device comprises a hydraulic oil tank, a hydraulic oil pump, a hydraulic distribution valve and a lifting oil cylinder, wherein the oil outlet of the hydraulic distribution valve is directly connected with the lifting oil inlet of the lifting oil cylinder. A hydraulic oil cylinder and the hydraulic distribution valve are installed in an integral way, and a high-pressure oil pipe arranged between the lifting oil inlet of the hydraulic oil cylinder and the oil outlet of the hydraulic distribution valve in the lifting configuration of the existing dump truck can be omitted. When a carriage of the dump truck is lifted, and the high-pressure oil pipe bursts suddenly, a reverse oil return way arranged in the lower cavity of the oil cylinder is automatically cut off by a one-way valve arranged at the outlet of the hydraulic distribution valve, the carriage is maintained at the stop position and does not fall off, and the carriage can be reliably and stably arranged on an auxiliary frame after the high-pressure oil pipe is replaced, so that terrible accidents are effectively prevented, and the personal safety of a driver and the safety of a vehicle can be well protected.

Description

technical field [0001] The invention relates to a hydraulic lifting device for a dump truck. Background technique [0002] Such as figure 2 and image 3 The two hydraulic lifting devices for dump trucks shown include hydraulic lifting control valve 1 in the cab, control air pipe 2, hydraulic oil tank 3, low pressure oil pipe 4, hydraulic distribution valve 5, hydraulic oil pump 6, high pressure oil pipe 7 and lift The lifting cylinder 8, the oil outlet of the hydraulic distribution valve 5 and the lifting oil inlet of the lifting cylinder 8 are connected through the high-pressure oil pipe 12. When the high-pressure oil pipe 12 bursts, the hydraulic oil of the hydraulic cylinder will flow out rapidly, and the carriage will fall rapidly and hit the vehicle Chassis frame. It endangers the personal safety of the driver and seriously damages the dump truck, causing great losses to the lives and properties of the people. Contents of the invention [0003] The problem to be s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60P1/16
Inventor 刘传锋郭磊
Owner JINAN HYDRAULIC PUMP
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