Oil port pressure adjustable reversing valve and valve block for hydraulic steering system

A technology of steering system and reversing valve, applied in the direction of fluid steering mechanism, valve details, multi-way valve, etc., which can solve the problems that the wheels cannot be satisfied, the pressure of the working oil port cannot be adjusted, etc.

Pending Publication Date: 2019-05-03
HEFEI CHANGYUAN HYDRAULICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The pressure of the working oil port of the reversing valve plate cannot be adjusted, which cannot meet the requirements of different pressures corresponding to different steering angles when the wheels are turning.

Method used

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  • Oil port pressure adjustable reversing valve and valve block for hydraulic steering system
  • Oil port pressure adjustable reversing valve and valve block for hydraulic steering system
  • Oil port pressure adjustable reversing valve and valve block for hydraulic steering system

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Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] Such as figure 1 As shown, the reversing valve with adjustable oil port pressure for a hydraulic steering system according to the present invention includes a reversing valve plate 100, an oil inlet valve plate 200 located on one side of the reversing valve plate 100, and a reversing valve plate located on the side of the reversing valve plate. 100 oil return body 300 on the other side. The reversing valve plate 100, the oil inlet valve plate 200 and the oil return body 300 are fixedly connected by three bolts arranged in a zigzag shape. The working oil ports A1 and B1 of the reversing valve plate 100, the oil inlet P and the oil return port T of the oil inlet valve plate 200 are all ...

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Abstract

The invention discloses an oil port pressure adjustable reversing valve and valve block for a hydraulic steering system. The reversing valve block includes a reversing valve body, a valve block coverplate, a valve stem, further includes a control room, a control room cover, a safety valve installed inside the valve stem, a safety valve spring seat, a safety valve spring, a steering control rotating shaft and a steering control rocker arm deflecting along with the steering control rotating shaft, and further includes a first screw regulating mechanism for regulating the axial position of the safety valve spring seat of the first end of the valve stem and a second screw regulating mechanism for regulating the axial position of the second end of the valve stem, wherein the steering control rocker arm is provided with a pair of shifting blocks extending downwards; and an outer longitudinal incision is formed in the valve stem, the safety valve spring seat is provided with an inner longitudinal incision, and in the middle position of the valve stem, the pair of shifting blocks is clamped between the outer blocking surface of the outer longitudinal incision and the inner blocking surface of the inner longitudinal incision. The reversing valve block can meet the different steering angles corresponding to the different steering pressures of wheels during steering.

Description

technical field [0001] The invention relates to a hydraulic reversing system, in particular to a reversing valve and a reversing valve plate with adjustable oil port pressure used in the hydraulic steering system. Background technique [0002] In a conventional hydraulic reversing system, the control structure of the reversing valve is as follows: [0003] Such as Figure 18 As shown, the conventional handle is fixed on the front cover 13' through the shift fork 14', the front cover 13' is fixed on the valve body 11', the shift fork 14' is installed in the shift fork hole of the valve stem through a cylindrical pin 15', and the dial There is a sheath 16' outside the fork, and the movement of the valve rod 12' can be driven by toggling the fork, so as to realize the direction change. [0004] The pressure of the working oil port of the reversing valve plate is not adjustable, which cannot meet the requirement that different steering angles correspond to different pressures w...

Claims

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Application Information

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IPC IPC(8): F16K11/07F16K31/60B62D5/08
Inventor 唐黎明杨秀攀
Owner HEFEI CHANGYUAN HYDRAULICS
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