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Hydraulic stepless speed change walking device of vibratory roller

A technology of vibratory rollers and stepless speed change, which is applied to fluid pressure actuators, mechanical equipment, servo motors, etc., can solve the problems of unrelieved labor intensity and inconvenient operation of the walking drive system, and achieve easy operation and low labor intensity. Mitigation effect

Inactive Publication Date: 2017-08-29
天津市路运通公路工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the driving system of some road rollers is inconvenient to operate, and the labor intensity cannot be relieved

Method used

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  • Hydraulic stepless speed change walking device of vibratory roller
  • Hydraulic stepless speed change walking device of vibratory roller

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Embodiment Construction

[0009] The above and other objects, features and advantages of the present invention can be more clearly understood through the following detailed description in conjunction with the accompanying drawings. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0010] Such as figure 1 As shown, a continuously variable speed traveling hydraulic device of a vibratory roller in a preferred embodiment of the present invention includes various components connected by hydraulic oil pipelines:

[0011] A variable pump 2 driven by the main shaft of the diesel engine 1, the variable pump 2 is provided with a joystick 2-2, the joystick 2-2 is connected to a servo cylinder 3 piston 3-1, the piston rod 3-1 of the piston 3-1 2 is connected to a servo valve 15; the servo valve 15 is connected to a travel control valve 11; the variable pump 2 is a swash plate 2-1 type axial plunger variable pump 2, and the piston...

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Abstract

The invention provides a hydraulic stepless speed change walking device of a vibratory roller. The walking device comprises components which are connected by a hydraulic oil pipeline, wherein the components comprise a variable pump driven by a diesel engine main shaft and an oil replenishing pump connected with a cooler; the variable pump is provided with an operating lever, the operating lever is connected with a servo cylinder piston, and a piston rod of the piston is connected with a servo valve; the servo valve is connected with a walking operating valve; the variable pump is a swash plate type axial plunger variable pump, and the piston rod is connected with a swash plate of the variable pump; and the oil replenishing pump is connected with an oil replenishing one-way overflow valve, the oil replenishing one-way overflow valve is connected with an overflow valve, and the overflow valve is connected with a variable pump case.

Description

technical field [0001] The present invention relates to a vibratory road roller, and more particularly, the present invention relates to a continuously variable traveling hydraulic device for a vibratory road roller. Background technique [0002] my country's highway construction has developed rapidly in recent years. In road construction, compaction machinery is very important. With the increase of traffic volume and the higher degree of mechanization of compaction machinery construction, the construction department has higher and higher requirements for compaction machinery. However, the driving system of some road rollers is inconvenient to operate, and the labor intensity cannot be alleviated. Contents of the invention [0003] The object of the present invention is to provide a traveling hydraulic device with stepless speed change for a vibratory road roller. [0004] A continuously variable speed traveling hydraulic device of a vibratory roller related to the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08
CPCF15B11/08
Inventor 张勇鹏
Owner 天津市路运通公路工程有限公司