Valve block and hydraulic four-wheel-drive power distribution mechanism based on valve block

A technology of distributing mechanism and valve block, applied in mechanical equipment, fluid pressure actuating device, fluid pressure actuating system components, etc., can solve problems such as loss of hydraulic oil and inability to drive vehicles

Pending Publication Date: 2019-03-01
CHONGQING MACHINE TOOL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The reason is that when a wheel loses its adhesion to the ground, the reaction force of the wheel is reduced to a minimum, and the pressure of the oil in the pipeline system is equal, and a relatively low pressure cannot drive a wheel with adhesion , causing a large amount of hydraulic oil to be lost rapidly on the hydraulic motor driving the slipping wheel, causing the vehicle to be unable to drive

Method used

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  • Valve block and hydraulic four-wheel-drive power distribution mechanism based on valve block
  • Valve block and hydraulic four-wheel-drive power distribution mechanism based on valve block

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0024] Such as fig...

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Abstract

The invention provides a valve block and a hydraulic four-wheel-drive power distribution mechanism based on the valve block. The valve block is provided with oil inlets, a first oil outlet and a second oil outlet, and comprises a first sequence valve, a second sequence valve and a logic valve, wherein an oil inlet of the first sequence valve and an oil inlet of the second sequence valve are used as the oil inlets of the valve block; a first sequence valve control oil port is connected with a second oil way first interface of the logic valve, a second oil way second interface is connected witha second sequence valve oil outlet, and the second sequence valve oil outlet is the second oil outlet of the valve block; and a second sequence valve control oil port is connected with a first oil wayfirst interface of the logic valve, a first oil way second interface is connected with a first sequence valve oil outlet, and the first sequence valve oil outlet is the first oil outlet of the valveblock. The valve block is simple in structure and can effectively restrict the loss of a large amount of hydraulic oil through a hydraulic motor so as to maintain the working pressure of the other hydraulic motor.

Description

technical field [0001] The invention relates to the field of hydraulic control, in particular to a valve block and a hydraulic four-wheel drive power distribution mechanism based on the valve block. Background technique [0002] At present, during the operation of agricultural machinery, it is often encountered that the driving wheels slip, especially in the desert areas of Xinjiang, where the four-wheel drive function of agricultural machinery is particularly important. The four-wheel drive designed in the early stage is a hydraulic pump that outputs hydraulic energy to two hydraulic motors responsible for the front drive and the rear drive to complete the drive of the vehicle. Such as figure 1 , figure 1 It is the schematic diagram of the existing hydraulic four-wheel drive system, but when a wheel slips, the hydraulic motor driving the slipping wheel rotates rapidly, and since the pressure in the hydraulic pipeline is the same, a large amount of hydraulic energy disappe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/06F15B11/16F15B21/00
CPCF15B11/165F15B13/06F15B21/001
Inventor 张静刘大德邵守甲邓福安赵耀宇姜书艳
Owner CHONGQING MACHINE TOOL GROUP
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