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Throttle valve

A throttle valve and spool technology, applied in fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve problems such as different adjustments and unrealizable

Active Publication Date: 2017-02-22
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a throttle valve, which can solve the problem that the existing throttle valve can only flow with a fixed flow rate, and cannot realize different adjustments to the flow (speed) of the oil inlet and outlet

Method used

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  • Throttle valve
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Examples

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0017] figure 2 , image 3 , Figure 4 , Figure 5 The shown throttle valve includes a valve body 1, and a fluid channel is provided in the valve body 1, and the fluid channel includes a first channel segment L1 and a second channel segment L2 that are axially arranged and communicated, and the first channel segment L1 There is a valve cavity for housing the valve core 2 between the second channel segment L2, and the valve core 2 is provided with an axial channel through its two ends, and the outer wall of the valve core 2 is provided with three axially symmetrical planes, Each plane is provided with a radial channel T3 communicating with the axial channel, and the angle between the radial channels T3 is 120°; the sum of the apertures of the three radial channels T3 is greater than the aperture at any end of the axial channel , the diameter of one ...

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Abstract

The invention discloses a throttle valve, and belongs to the technical field of engineering machinery. The throttle valve comprises a valve body, wherein an axial fluid channel is formed inside the valve body; the fluid channel comprises a first channel section and a second channel section which are communicated together; a valve cavity for accommodating a valve core is formed between the first channel section and the second channel section; an axial channel which passes through two ends of the valve core is formed inside the valve core; three planes in axial symmetry are arranged on the outer wall of the valve core; a radial pore channel which is communicated with the axial channel is formed in each plane; the sum of apertures of three radial pore channels is greater than the aperture one any end of the axial channel; the aperture of one end of the axial channel is greater than that of the radial pore channel; the aperture of the other end of the axial channel is smaller than that of the radial pore channel. By adopting the throttle valve, the problems that a conventional throttle valve only has fixed flow and different inlet / outlet oil flows (speeds) cannot be adjusted can be solved.

Description

technical field [0001] The invention relates to the technical field of construction machinery manufacturing, in particular to a throttle valve used in hydraulic systems of construction machinery. Background technique [0002] Throttle valves are widely used in the field of hydraulic control of construction machinery. It is a valve that controls fluid flow by changing the throttle section or throttle length. figure 1 The throttle valve shown includes a valve body 01, and a fluid channel is arranged in the valve body 01, and the fluid channel includes a first channel segment a and a second channel segment b, and the aperture of the first channel segment a is smaller than that of the second channel Aperture diameter of segment b. When working, the fluid flows from the second channel segment b into the first channel segment a to be throttled, but this kind of throttle valve exists: because the throttle area of ​​its valve port is fixed, whether it is in the oil inlet circuit or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 白健信李大尤刘光喜李良周
Owner GUANGXI LIUGONG MASCH CO LTD
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