CN102996558A

CN102996558A - Novel hydraulic valve

Info

Publication number: CN102996558A
Application number: CN2012105792101A
Authority: CN
Inventors: 郭辉; 徐华
Original assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Current assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2013-03-27

Abstract

The invention relates to a novel hydraulic valve which comprises an inlet tube connector [1], a casing [2], a valve seat spring [3], a valve seat [4], a valve [5], a sealing base [6], a valve spring [7] and an outlet tube connector [8], wherein the casing [2] integrally is of a hollow structure, one end of the casing is connected with the inlet tube connector [1], and the other end of the casing is connected with the outlet tube connector [8]; the valve seat [4] and the valve [5] are arranged in an inner cavity of the casing [2], the valve seat spring [3] is arranged between one end of the valve seat [4] and the inlet tube connector [1], the other end of the valve seat [4] is provided with the valve [5], the sealing base [6] for sealing the valve [5] is further arranged in the casing [2], and a beading for limiting is arranged on the valve [5]. The spring having the hydraulic balancing function and resetting function is placed in the cavity communicated with the atmosphere, so that the spring is always in the stable atmosphere environment, and the problem that the spring in the traditional hydraulic valve is unstable due to pressure fluctuation of hydraulic oil is solved.

Description

A kind of Novel hydraulic valve

Technical field

The invention belongs to the hydrovalve field, relate to a kind of Novel hydraulic valve.

Background technique

The valve of conventional hydraulic valve is general direct to be cooperated with housing, valve directly contacts with housing when resetting, valve of the every work of hydrovalve and housing will directly clash into once, long-term bump must cause valve and housing to produce tired and damage, will affect operating life and the reliability of hydrovalve.The spring that plays in traditional hydrovalve with fluid pressure balance function and reset function generally is in the hydraulic medium, causes the unstable of hydrovalve thereby the pressure pulsation meeting of hydraulic oil affects spring.

Summary of the invention

Purpose of the present invention: provide a kind of brand-new long working life, the hydrovalve that reliability Gao Bingneng avoids hydraulic pulsation to disturb.

The technological scheme that the present invention takes: a kind of Novel hydraulic valve, comprise inlet connector tube [1], housing [2], valve base spring [3], valve base [4], valve [5], sealing seat [6], shutter spring [7], outlet pipe connection [8], housing [2] is the integral hollow structure, the one end connects inlet connector tube [1], the other end connection outlet pipe joint [8], described valve base [4] is arranged on housing [2] inner chamber with valve [5], be provided with valve base spring [3] between valve base [4] one ends and the inlet connector tube [1], the other end is installed valve [5], also be provided with the sealing seat [6] that valve [5] is sealed in the housing [2], valve [5] is provided with for spacing convex shoulder, shutter spring [7] is installed between its convex shoulder and the sealing seat [6], and the housing [2] that shutter spring [7] is corresponding is provided with the hole.

The upper surface of contact that matches with valve base [4] of valve [5] is the conical surface or sphere.

Beneficial effect of the present invention: the present invention places spring the cavity that communicates with atmosphere, spring is in the stable atmosphere environment all the time, has avoided conventional hydraulic valve medi-spring to be in to be subject in the hydraulic oil hydraulic fluid pressure pulsation and the generation of the unsettled phenomenon of spring that causes.When the setting of valve base spring [3] resets valve no longer with the direct bump but contact operating life and the reliability of the buffer function energy Effective Raise hydrovalve of valve base spring [3] with valve base [2] of housing.The present invention is applicable to various life-span and the higher industries of reliability requirement to hydrovalve such as Aeronautics and Astronautics, also the conventional hydraulic valve of alternative every field.

Description of drawings

Fig. 1 is the structure principle chart of hydrovalve of the present invention, wherein, and 1: inlet connector tube, 2: housing, 3: valve base spring, 4: valve base, 5: valve, 6: sealing seat, 7: shutter spring, 8: outlet pipe connection;

Fig. 2 is the sectional view of this hydrovalve valve base 4;

Fig. 3 is the sectional view of this hydrovalve valve 5.

Embodiment

For better explanation the present invention, specify below in conjunction with accompanying drawing.

A kind of Novel hydraulic valve, comprise inlet connector tube 1, housing 2, valve is sat spring 3, valve base 4, valve 5, sealing seat 6, shutter spring 7, outlet pipe connection 8, housing 2 is the integral hollow structure, the one end connects inlet connector tube 1, the other end connection outlet pipe joint 8, described valve base 4 is arranged on housing 2 inner chambers with valve 5, be provided with valve between valve base 4 one ends and the inlet connector tube 1 and sit spring 3, the other end is installed valve 5, also be provided with the sealing seat 6 to valve 5 sealings in the housing 2, valve 5 is provided with for spacing convex shoulder, between its convex shoulder and the sealing seat 6 shutter spring 7 is installed, the housing 2 of shutter spring 7 correspondences is provided with the hole, between valve 5 and the housing 2, between valve 5 and the sealing seat 6, being provided with seal ring between sealing seat 6 and the housing 2 is in the atmosphere environment, such as Fig. 1 spring 7 all the time, shown in 2.

For improving on the valve 5 and the sealability between the valve base 4, the surface of contact that matches with valve base 4 on the valve 5 is the conical surface or sphere, as shown in Figure 3.

When the pressure that enters the fluid of hydrovalve from inlet connector tube 1 reaches the cracking pressure of valve, overcome shutter spring 7 and move right and form path thereby fluid promotes valve 5, fluid is by outlet pipe connection 8 efflux pressure valves; When the pressure that enters the fluid of hydrovalve from inlet connector tube 1 reaches the reseat pressure of valve, thereby the spring force of shutter spring 7 promotion valve 5 is moved to the left and makes hydraulic valve closes, valve 5 contacted with valve base 4 when the setting of valve base spring 3 made hydraulic valve closes, had avoided rigid bump.Valve 5 is in the atmosphere environment, is not subject to the impact of hydraulic pulsation, thereby has guaranteed the hydraulic pressure Operating stability of valve.

Claims

1. Novel hydraulic valve, it is characterized in that: comprise inlet connector tube [1], housing [2], valve base spring [3], valve base [4], valve [5], sealing seat [6], shutter spring [7], outlet pipe connection [8], housing [2] is the integral hollow structure, the one end connects inlet connector tube [1], the other end connection outlet pipe joint [8], described valve base [4] is arranged on housing [2] inner chamber with valve [5], be provided with valve base spring [3] between valve base [4] one ends and the inlet connector tube [1], the other end is installed valve [5], also be provided with the sealing seat [6] that valve [5] is sealed in the housing [2], valve [5] is provided with for spacing convex shoulder, shutter spring [7] is installed between its convex shoulder and the sealing seat [6], and the housing [2] that shutter spring [7] is corresponding is provided with the hole.

2. Novel hydraulic valve according to claim 1 is characterized in that: the upper surface of contact that matches with valve base [4] of valve [5] is the conical surface or sphere.