CN201963946U

CN201963946U - Sliding body valve

Info

Publication number: CN201963946U
Application number: CN2010206576996U
Authority: CN
Inventors: 肖息; 彭纲; 雷体高; 刘晓刚
Original assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Current assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2011-09-07
Anticipated expiration: 2020-12-14

Abstract

The utility model belongs to a hydraulic fluid structure design technology, and relates to a sliding body valve. The sliding body valve comprises a valve sleeve and a valve core; the valve sleeve is in a rotary structure provided with a plurality of circulation passages and provided with a cavity; the valve core is in a rotary structure provided with a plurality of convex shoulders; the valve core is positioned in the valve sleeve and is coaxial with the valve sleeve; and by changing the position of the valve core in the valve sleeve, two different functions of the sliding body valve at two positions are realized, and leaked oil reflux and damping function of the sliding body valve are realized. The sliding body valve is convenient and fast to process, overcomes the defects of additional weight, complex installation, high sealing difficulty, low product qualification rate and the like caused by the traditional structure, and solves the technical problems of high efficiency, sealing, internal spatial structure layout and working medium cleanliness requirement of an actuating system. The sliding body valve integrates the structures of the valve core and the valve sleeve, simultaneously has the functions of flow isolation, oil passage switching, damping adjustability and the like, reduces the product weight, and increases the damping bypass function.

Description

A kind of gliding mass valve

Technical field

The utility model belongs to the hydraulic fluid structure-design technique, relates to a kind of gliding mass valve.

Background technique

Existing gliding mass valve is generally selector valve or servovalve is more, and its main structure is made up of valve pocket and spool.Spool in this kind structure and valve pocket have diversified combining form, have also formed the gliding mass valve of multiple difference in functionality.Existing gliding mass valve lacks the communication of convection cell runner and the fluid reflux function that bypass switching, damping and guiding are leaked, and the sealing difficulty, and processing cost is higher.

The model utility content

The utility model purpose: provide a kind of valve to gather spool, valve pocket structure, had gliding mass valve every functions such as stream, switching oil circuit, Adjustable Damping in one.

The technical solution of the utility model is: a kind of gliding mass valve, comprise valve pocket 1 and spool 2, described valve pocket 1 is the rotary structure of band cavity, be provided with some circulation passages, described spool 2 is a rotary structure, outer shroud has some convex shoulders, spool 2 is positioned at valve pocket 1, coaxial with valve pocket 1, first-class circulation passage 4 on the described valve pocket 1 is all the time between first convex shoulder 3 and second convex shoulder 6 on the spool 2, the 5th circulation passage 10 is all the time between the 3rd convex shoulder 9 and the 4th convex shoulder 11 on the spool 2, all the time between second convex shoulder 6 and the 3rd convex shoulder 9, second convex shoulder 6 on the described spool 2 remains consistent with the communication port opening direction of second circulation passage, 5 formation and the communication port opening direction of the 3rd convex

shoulder

9 and 8 formation of the 4th circulation passage the 3rd circulation passage 7.

Circulation passage on the described valve pocket 1 can be circular hole or square hole or annular groove.

Described valve pocket 1 is for being provided with the rotary structure of some convex shoulders, and described spool 2 two ends can be provided with the ditch circulation passage.

The inboard that described valve pocket 1 is positioned at second circulation passage 5 and the 4th circulation passage 8 position parts can be provided with annular groove.

Convex shoulder on the described spool 2 can seal with ring structure.

The beneficial effects of the utility model: this gliding mass valve easy making process, overcome the impost that conventional construction brings, shortcomings such as complicated, that sealing difficulty is big and product percent of pass is low have been installed, the technical barrier that solved that actuating system is efficient, sealing, interior spatial structure layout and working medium turbidity test requires.The gliding mass valve gathers spool, valve pocket structure in one, also has every stream simultaneously, switches functions such as oil circuit, Adjustable Damping, has reduced product weight, has increased the damping bypass function, for the safe and reliable requirement of satisfying actuating system of new generation plays a significant role.

Description of drawings

The structural drawing of Fig. 1 gliding mass valve first mode of execution;

First kind of position assumption diagram of Fig. 2 gliding mass valve second embodiment;

Second kind of position assumption diagram of Fig. 3 gliding mass valve second embodiment;

First kind of positional structure size relationship figure of Fig. 4 gliding mass valve second embodiment;

Second kind of positional structure size relationship figure of Fig. 5 gliding mass valve second embodiment

Embodiment

Specify this gliding mass valve for better illustrating, see also accompanying drawing 1～Fig. 5 below in conjunction with accompanying drawing.

See also Fig. 1, Fig. 2 and Fig. 3.A kind of gliding mass valve, comprise valve pocket 1 and spool 2, described valve pocket 1 is the rotary structure of band cavity, be provided with some circulation passages, described spool 2 is a rotary structure, outer shroud has some convex shoulders, spool 2 is positioned at valve pocket 1, coaxial with valve pocket 1, first-class circulation passage 4 on the described valve pocket 1 is all the time between first convex shoulder 3 and second convex shoulder 6 on the spool 2, the 5th circulation passage 10 is all the time between the 3rd convex shoulder 9 and the 4th convex shoulder 11 on the spool 2, the 3rd circulation passage 7 is all the time between second convex shoulder 6 and the 3rd convex shoulder 9, and second convex shoulder 6 on the described spool 2 and second circulation passage, 5 communication port opening directions and the 3rd convex shoulder 9 and the 4th circulation passage 8 communication port opening directions remain consistent.

Convex shoulder on the described spool 2 can seal with ring structure.

Consult Fig. 4～Fig. 5, second circulation passage 5 and the 4th circulation passage 8 plus laps on second convex shoulder 6 on the spool 2 and the 3rd convex shoulder 9 and the valve pocket 1, valve pocket 1 and spool 2 adopt accurate Spielpassung, guarantee that leakage rate is minimum.

See also Fig. 2～Fig. 5.Spool 2 has two kinds of positions:

Consult Fig. 4, during first kind of position, second convex shoulder, 6 right hand edges distance on the valve pocket 1 on second circulation passage, 5 right hand edges and the spool 2 is L2, the 3rd convex shoulder 9 right hand edges distance on the valve pocket 1 on the 4th circulation passage 8 right hand edges and the spool 2 is L1, the displacement that spool 2 is moved to the left under external force is greater than the maximum value between L2, the L1, thereby guarantee that second circulation passage 5 forms in the communication port of right side on second convex shoulder 6 and the valve pocket 1 on spool 2, the 4th circulation passage 8 also can form the right side communication port on the 3rd convex shoulder 9 on the spool 2 and the valve pocket 1.

Consult Fig. 5, this moment, spool 2 was in second kind of position, second convex shoulder, 6 left hand edges distance on the valve pocket 1 on second circulation passage, 5 left hand edges and the spool 2 is L4, the 3rd convex shoulder 9 left hand edges distance on the valve pocket 1 on the 4th circulation passage 8 left hand edges and the spool 2 is L3, the displacement that spool 2 moves right under external force is greater than the maximum value between L3, the L4, thereby guarantee that second circulation passage 5 forms in the communication port of left side on second convex shoulder 6 and the valve pocket 1 on spool 2, the 4th circulation passage 8 also can form the left side communication port on the 3rd convex shoulder 9 on the spool 2 and the valve pocket 1.

Consult Fig. 4～Fig. 5, by the way, realize on second convex shoulder 6 and the valve pocket 1 on the spool 2 that the 4th circulation passage 8 communication port directions remain consistent on the 3rd convex shoulder 9 on second circulation passage, the 5 communication port directions and spool 2 and valve pocket 1.

Consult Fig. 2, spool 2 is when first kind of position.By the fluid in the first-class circulation passage 4 on the valve pocket 1 via cavity volume 14 from communication port 15 to valve pocket on 1 second circulation passage 5 flow out, by the fluid in the 3rd circulation passage 7 on the valve pocket 1 via cavity volume 17 from communication port 18 to valve pocket on 1 second circulation passage 5 flow out, 12 li of cavity volumes flow back to realization gliding mass valve escape of liquid backflow functionality because the fluid that valve core movement leaks flows into spool 2 current by pass 21 via ditch port 13 from outflow opening 22.

Consult Fig. 3, spool 2 is moved to the left Fig. 3 position under external force.Flow out via cavity volume 17 the 3rd circulation passage 7 to the valve pocket 1 from communication port 16 by the fluid in the 2nd circulation passage 5 on the valve pocket 1, flow out via cavity volume 20 the 5th circulation passage 10 to the valve pocket 1 from communication port 19 by the fluid in the 4th circulation passage 8 on the valve pocket 1,12 li of cavity volumes flow back to realization gliding mass valve escape of liquid backflow functionality because the fluid that valve core movement leaks flows into spool 2 current by pass 21 via ditch port 13 from outflow opening 22.Increase the width of the 3rd convex shoulder 9 on the spool 2, can change communication port 19 openings of sizes, realize that the fluid in the 4th circulation passage 8 on the valve pocket 1 is from the adjusting of communication port 19 via cavity volume 20 the 5th circulation passage 10 effluent fluid damping sizes to the valve pocket 1.

Claims

1. gliding mass valve, comprise valve pocket [1] and spool [2], it is characterized in that the rotary structure of described valve pocket [1] for the band cavity, be provided with some circulation passages, described spool [2] is a rotary structure, outer shroud has some convex shoulders, spool [2] is positioned at valve pocket [1], coaxial with valve pocket [1], first-class circulation passage [4] on the described valve pocket [1] is positioned between first convex shoulder [3] and second convex shoulder [6] on the spool [2] all the time, the 5th circulation passage [10] is positioned between the 3rd convex shoulder [9] and the 4th convex shoulder [11] on the spool [2] all the time, the 3rd circulation passage [7] is positioned between second convex shoulder [6] and the 3rd convex shoulder [9] all the time, and second convex shoulder [6] on the described spool [2] remains consistent with communication port opening direction and the 3rd convex shoulder [9] that second circulation passage [5] forms with the communication port opening direction that the 4th circulation passage [8] forms.

2. gliding mass valve according to claim 1 is characterized in that, the circulation passage on the described valve pocket [1] is circular hole or square hole or annular groove.

3. gliding mass valve according to claim 1 and 2 is characterized in that, described valve pocket [1] is for being provided with the rotary structure of some convex shoulders, and described spool [2] two ends are provided with the ditch circulation passage.

4. gliding mass valve according to claim 1 and 2 is characterized in that, there is annular groove the inboard that described valve pocket [1] is positioned at second circulation passage [5] and the 4th circulation passage [8] position part.

5. gliding mass valve according to claim 1 and 2 is characterized in that, the convex shoulder on the described spool [2] can seal with ring structure.