Hydraulic valve valve rod preventing clamping stagnation

A technology for hydraulic valves and valve stems, applied in the field of hydraulic valve stems, which can solve the problems of ineffective anti-sticking and sticking, and achieve the effect of improving hardness and solving sticking

Inactive Publication Date: 2020-08-07
唐万刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a hydraulic valve stem that prevents sticking, which solves the problem that the valve stem in the prior art is provided with a hollow groove. Although the hollow groove has anti-seize, the anti-seize effect is not obvious. There is still a problem of stagnation when using it

Method used

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  • Hydraulic valve valve rod preventing clamping stagnation
  • Hydraulic valve valve rod preventing clamping stagnation
  • Hydraulic valve valve rod preventing clamping stagnation

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see figure 1 , figure 2 , image 3 , Figure 4 , a hydraulic valve stem to prevent stagnation, including a valve stem 1, a flat connecting body 3 is fixedly arranged on the left side of the valve stem 1, an annular groove 5 is arranged on the outside of the valve stem 1, and the valve stem 1 The first hollow groove 6, the second hollow groove 7, and the third hollow groove 11 are opened on the top. The first hollow groove 6 is arranged on the left s...

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Abstract

The invention discloses a hydraulic valve valve rod preventing clamping stagnation. The hydraulic valve valve rod preventing clamping stagnation comprises a valve rod. The left edge of the valve rod is fixedly provided with a flat connection body. An annular groove is arranged outside the valve rod. The valve rod is provided with a first through groove, a second through groove and a third throughgroove. A through hole located on the outer portion of the valve rod is arranged on the right side of the third through groove. An inclined hole is arranged on the right side face of the third throughgroove. A first throttling groove is arranged on the right side of the second through groove. The surface of the valve rod is plated with hard chromium, and then the hardness of the valve rod is improved. The inclined hole and the through hole formed on the valve rod enable lubricating oil to permeate the surface of the valve rod during movement, and a lubricating effect is achieved. A connectionhole and a connection hole A can conduct external connection. The arranged annular groove can store dirt in the motion process, and the first throttling groove, a second throttling groove and a thirdthrottling groove achieve the buffering function when the valve rod moves. The hydraulic valve valve rod preventing clamping stagnation can effectively solve the clamping stagnation problem of the valve rod and has the features of being convenient and practical.

Description

technical field [0001] The invention relates to the technical field of hydraulic valves, in particular to a valve stem of a hydraulic valve for preventing sticking. Background technique [0002] Hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of pressure distribution valve. It is usually used in combination with electromagnetic pressure distribution valve. It can be used to remotely control the on-off of oil, gas and water pipeline systems in hydropower stations. Commonly used in clamping, control, lubrication and other oil circuits. There are direct-acting and pilot-operated types, and the pilot-operated type is mostly used. According to the control method, it can be divided into manual control, electric control and hydraulic control. The flow rate is adjusted by adjusting the orifice area between the spool and the valve body and the local resistance generated by it, so as to control the movement speed of the actuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K31/44F16K47/00F16N1/00B23P15/00
CPCB23P15/001C23C30/00F15B13/021F16K31/44F16K47/00F16N1/00
Inventor 唐万刚
Owner 唐万刚
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