A wheeled traveling device and its traveling wheel hydraulic drive system

A driving system and walking device technology, applied in control devices, fluid pressure actuating devices, transportation and packaging, etc., can solve problems such as stagnation, and achieve the effects of ensuring normal movement, low system cost, and simple overall structure

Active Publication Date: 2016-08-24
NUCLEON XINXIANG CRANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a simple and effective traveling wheel hydraulic drive system to solve the technical problem that the traveling machinery in the prior art tends to stagnate when a certain traveling wheel slips; at the same time, the present invention also provides a walking Wheeled traveling device with wheel hydraulic drive system

Method used

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  • A wheeled traveling device and its traveling wheel hydraulic drive system

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Embodiment Construction

[0019] like figure 1 Shown, the embodiment of a kind of wheeled traveling device, the wheeled traveling device in this embodiment comprises a plurality of traveling wheels 1 and is used to drive the hydraulic drive system 10 that traveling wheels 1 rotates, in figure 1 Only a single road wheel is shown in the figure 1 The road wheels shown in are the same, and the hydraulic drive system 10 includes a hydraulic power source and a plurality of drive units for driving the corresponding road wheels to rotate. The hydraulic power source usually adopts a hydraulic pump driven by an engine of a walking machine using a wheeled walking device. Each drive unit has the same structure, with figure 1 Take the drive unit shown in as an example. The drive unit includes a variable motor with inlet and outlet ports and a high-pressure oil circuit P and a low-pressure oil circuit P that are connected to the inlet and outlet of the variable motor and the hydraulic power source (not shown in the...

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Abstract

The invention provides a wheel type walking device and a walking wheel hydraulic drive system thereof. The walking wheel hydraulic drive system comprises two or more drive units for driving a walking wheel to rotate, each drive unit comprises a variable motor and high and low-pressure oil paths, a sequence valve for carrying out opening and closing action according to an oil pressure value at an oil inlet of the variable motor is arranged on the high-pressure oil path of each drive unit, a control oil port of the sequence valve is communicated with the oil inlet of the variable motor, the high-pressure oil path is communicated with a throttling oil path of a throttling valve arranged on the high-pressure oil path, the throttling oil path and the sequence valve are arranged in parallel, and two communicating positions where the throttling oil paths are abutted with and communicated with the high-pressure oil paths are correspondingly positioned at the upstream and the downstream positions of the sequence valves. The wheel type walking device and the walking wheel hydraulic driving system thereof have the benefit that when a walking wheel slips, the sequence valves are closed, and the main oil paths are disconnected, so that only less oil flows to the corresponding variable motor through the throttling oil paths; a lot of high-pressure hydraulic oil is provided for other drive units to drive other walking wheels to normally rotate, therefore, the normal work of the whole walking wheel hydraulic drive system is ensured.

Description

technical field [0001] The invention relates to a wheeled traveling device and a hydraulic driving system for the traveling wheels thereof. Background technique [0002] Most of the walking machinery is driven by the wheeled walking device. The wheeled walking device includes the traveling wheel and the traveling wheel hydraulic drive system for driving the traveling wheel to rotate. The traveling wheel hydraulic drive system includes a hydraulic power source and various drives connected to the hydraulic power source. Each drive unit includes a variable motor as an actuator and high and low pressure oil passages corresponding to the inlet and outlet of the variable motor. [0003] When the walking machine is running normally, it can be divided into straight line walking and curved walking according to the walking track. When the walking machine is walking in a curve such as turning, the differential function that each road wheel should have can be easily realized by connecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/028B60K17/10
Inventor 尹超利崔鹏张鑫刘新生付春彪
Owner NUCLEON XINXIANG CRANE
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