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a control valve

A technology for controlling valves and spools, which is applied in the field of hydraulic valves, and can solve problems such as the pressure drop of the hydraulic system for travel, the failure of the road roller to travel normally, and the like.

Active Publication Date: 2020-06-30
邹城市三洋机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During construction, if the road conditions are uneven and a certain driving wheel appears suspended, the simple parallel traveling hydraulic drive system causes the hydraulic motor on the suspended traveling device to short-circuit on the hydraulic oil circuit, the traveling device slips, and the pressure of the entire traveling hydraulic system is instantaneous. Falling, causing the roller to not move normally
If the diverter-collector valve is used to control the amount of oil in and out of the hydraulic motor in the suspended driving wheel, it can solve the problem that a traveling device cannot walk due to suspension, but when the roller turns with a small radius, the outer travel device controlled by the diverter-collector valve There will be dragging and turning, unable to walk normally

Method used

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Embodiment Construction

[0018] 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 and are intended to explain the present invention and should not be construed as limiting the present invention.

[0019] A control valve according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Such as Figure 1 to Figure 3 As shown, a control valve according to an embodiment of the present invention includes: a valve body 1 , a screw sleeve 2 , a valve core 3 and a spring 4 .

[0021] Specifically, the valve body 1 has a valve body blind hole opening to the left. On the side wall of the valve body 1 there are first oil port T, second oil port A and third oi...

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Abstract

The invention discloses a control valve. The control valve comprises a valve body, a screw sleeve, a valve element and a spring. According to the control valve in the embodiment of the invention, thecontrol valve can be used for hydraulic motor torque distribution control.

Description

technical field [0001] The invention relates to a hydraulic valve, in particular to a control valve for controlling a hydraulic motor. Background technique [0002] Non-road machinery, such as road rollers, are mostly driven by hydraulic motors. During construction, if the road conditions are uneven and a certain driving wheel appears suspended, the simple parallel traveling hydraulic drive system causes the hydraulic motor on the suspended traveling device to short-circuit on the hydraulic oil circuit, the traveling device slips, and the pressure of the entire traveling hydraulic system is instantaneous. Descending, causing the roller to fail to move normally. If the diverter-collector valve is used to control the amount of oil in and out of the hydraulic motor in the suspended driving wheel, it can solve the problem that a traveling device cannot walk due to suspension, but when the roller turns with a small radius, the outer travel device controlled by the diverter-colle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 不公告发明人
Owner 邹城市三洋机械有限公司