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throttle valve

A technology of throttle valve and valve core, applied in the direction of fluid pressure actuation device, servo motor assembly, mechanical equipment, etc., can solve problems such as unrealizable and different adjustment

Active Publication Date: 2018-06-15
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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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 aperture at 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 Patents(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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