CN105298963B - Rotary valve valve rod and control valve - Google Patents
Rotary valve valve rod and control valve Download PDFInfo
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- CN105298963B CN105298963B CN201510727357.4A CN201510727357A CN105298963B CN 105298963 B CN105298963 B CN 105298963B CN 201510727357 A CN201510727357 A CN 201510727357A CN 105298963 B CN105298963 B CN 105298963B
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Abstract
The present invention relates to rotary valve valve rod and control valve, to solve existing rotary valve valve rod processing difficulties, it is more expensive to manufacture shortcoming, the present invention discloses rotary valve valve rod, the valve rod includes multiple valve rod sections, valve rod oil duct is set in valve rod sections, valve rod sections is fixedly connected with adjacent valve rod sections successively in the axial direction, valve rod oil duct is connected in the axial end of valve rod sections with ft connection or with the valve rod oil duct in adjacent valve rod sections, valve rod sections includes the valve rod sections with sphere section, sphere section has the ring-type sphere around the valve rod sections, each ring-type sphere is provided with the valve rod hydraulic fluid port connected with valve rod oil duct.In the present invention, valve rod is mainly made up of some valve rod sections, valve rod sections difficulty of processing is relatively low, it is relatively simple in the moulding for forming valve rod oil duct, simultaneously in multiple valve rod sections of composition valve rod, there can be the structure of the valve rod sections of part identical, be greatly improved its interchangeability and reduce difficulty of processing.
Description
Technical field
The present invention relates to a kind of control block hydraulic unit with, more specifically to a kind of rotary valve valve rod and with the valve rod
Control valve.
Background technology
In existing hydraulic control valve, it is broadly divided into two classes, a class is side valve type, and this kind of valve includes valve body, in valve
Valve rod is set in the valve pocket of body, and valve rod is cylindrical, which is provided with multiple columned shoulders, and shoulder is close with valve pocket inwall gap
Envelope, valve rod moves axially and the path between different hydraulic fluid ports on valve body is blocked or connected.Another kind of is rotary valve control valve,
This kind of valve includes valve body, and valve rod is set in the valve pocket of valve body, and valve rod two ends fix and one end sets valve rod tumbler wherein,
So that valve rod is rotatable, oil duct is set in valve rod, at least one is arranged on the side surface of valve rod, valve in the outlet of oil duct and entrance
Bar and valve pocket inwall gap, are provided with multiple hydraulic fluid ports on valve body, when valve rod is rotated, stem internal oil duct from different valve bodies not
Connected with hydraulic fluid port or cut-off is so as to different functions.
In above-mentioned rotary valve control valve, fit system and valve rod in guiding valve and the valve pocket inwall of valve rod and valve pocket inwall
Fit system it is similar, be all the guiding valve form using clearance seal because there is certain gap in valve rod and valve body,
There must be a certain amount of leakage, and valve rod has the guiding of certain length, when valve rod or valve body generation micro-strain or valve rod add
Work exists and occurs valve card phenomenon when error all can be such that valve rod is moved in valve body.
For rotary valve valve rod, due to needing that valve rod oil duct is arranged in valve rod, but because valve rod oil duct is not in valve
Axially through therefore existing rotary valve valve rod haves the shortcomings that processing and manufacturing is difficult, is more expensive to manufacture on the axial direction of bar.
The content of the invention
The technical problem to be solved in the present invention is directed to existing rotary valve valve rod processing difficulties, is more expensive to manufacture shortcoming, and
There is provided it is a kind of be easily worked, the rotary valve valve rod of low cost of manufacture and the control valve with the valve rod.
The present invention is to realize that the technical scheme of its purpose is such：A kind of rotary valve valve rod is constructed, the valve rod includes
Several valve rod sections, the inside of the valve rod sections is provided with valve rod oil duct, the valve rod sections in the axial direction successively with it is adjacent
Valve rod sections be fixedly connected, the valve rod oil duct valve rod sections axial end and ft connection or with adjacent valve rod sections
Interior valve rod oil duct connection, the valve rod sections includes the valve rod sections with sphere section, and the sphere section has around institute
The ring-type sphere of valve rod sections is stated, each ring-type sphere is provided with the valve rod hydraulic fluid port connected with valve rod oil duct.In the present invention, valve
Bar is mainly made up of some valve rod sections, and relative to whole valve rod, the difficulty of processing of valve rod sections is relatively easy to, and particularly
It is relatively simple in the moulding of valve rod oil duct for forming stem internal, while in multiple valve rod sections of composition valve rod, Ke Yiyou
The structure of partial valve rod sections is identical, is greatly improved its interchangeability and reduces difficulty of processing.
In above-mentioned rotary valve valve rod, the two adjacent section valve rod sections junctions are provided with the adjacent valve rod segment end of socket
Valve rod branch sleeve, having between the valve rod branch sleeve and valve rod sections prevents valve rod branch sleeve and valve rod sections phase
The bolt for mutually rotating.The endoporus of the valve rod branch sleeve is provided with internal thread, the adjacent two valve rods sections termination
It is provided with the external screw thread matched with the valve rod branch sleeve internal thread.In addition in two adjacent valve rod sections, it is can also be
In the end endoporus of a valve rod sections set internal thread, the end of another valve rod sections sets external screw thread, and the two valve rod sections lead to
Cross internal thread with it is externally threaded mating connection and realize two connections of valve rod sections.
In above-mentioned rotary valve valve rod, the valve rod oil duct set in the valve rod sections with sphere section is included in valve rod mutually
The left valve rod oil duct and right valve rod oil duct for differing, the left end of the left valve rod oil duct are located on the left side of the valve rod sections,
The right-hand member of the right valve rod oil duct is located on the right side of the valve rod sections, the right-hand member and the right valve rod of the left valve rod oil duct
The valve rod hydraulic fluid port that the left end correspondence of oil duct is different from the valve rod sections sphere section is connected.The valve rod set on same sphere section
Hydraulic fluid port is two and is set on the valve rod sections Central Symmetry.Or the valve rod hydraulic fluid port quantity set on same sphere section
It it is four, each two constitutes a pair of valve rod hydraulic fluid port groups, a pair therein on the centrosymmetric valve rod hydraulic fluid port of the valve rod sections
Valve rod hydraulic fluid port group is connected with the right-hand member of the left valve rod oil duct, another that valve rod hydraulic fluid port group is connected with the left end of the right valve rod oil duct
It is logical.Two pairs of center lines of valve rod hydraulic fluid port group are in 90 degree of angles.
In above-mentioned rotary valve valve rod, the valve rod sections includes positioning sections, and the positioning sections is located at institute respectively
State the end of valve rod two ends or neighbouring valve rod, position sections and be cylindrical in shape, its center with axially through endoporus, on periphery
With the shoulder coordinated for the valve pocket inwall with valve body.Shoulder on positioning sections coordinates with valve body, plays a part of axle journal,
Radial positioning is played to valve rod and supports the valve rod to rotate it.
The present invention is to realize that another technical scheme of its purpose is such：Construct a kind of rotary valve control valve, including valve
Body, valve rod is provided with the valve pocket of valve body, has valve rod positioning device and the rotation to valve rod axially position in valve pocket end
The valve rod rotating mechanism of valve rod, the valve rod is foregoing valve rod, and corresponding to has at least one on each valve body described in sphere section
The valve port passage of the vertical valve rod, is provided with sleeve, one end of the sleeve and corresponding institute in each described valve port passage
The sphere linear sealing contact of valve rod sphere section is stated, the other end of the sleeve is the interior spring for setting spring and being connected with hub internal bore
Chamber, spring contact with sleeve connection simultaneously provides elastic force, the valve body oil duct in the spring cavity and valve body to sleeve
Connection, the corresponding described valve rod oil duct connected with valve rod hydraulic fluid port when valve rod hydraulic fluid port is connected with sleeve connects through sleeve and valve body oil duct
It is logical.In the present invention, mainly it is made up of some valve rod sections, relative to whole valve rod, the difficulty of processing of valve rod sections more holds
Easily, it is and relatively simple in the moulding of valve rod oil duct for forming stem internal being particularly, while constituting multiple valve rods of valve rod
In sections, there can be the structure of the valve rod sections of part identical, be greatly improved its interchangeability and reduce difficulty of processing.Valve rod is determined
Position mechanism and valve rod rotating mechanism axially position valve rod, and rotatably, when valve rod is rotated, its internal valve rod oil duct passes through sphere
Valve rod hydraulic fluid port on section and the cooperation of sleeve and connect the different oil ducts on valve body so that oil circuit control is moved towards.Valve rod sphere section
For the linear contact lay of cone sealing is connected between sleeve, even if the abrasion of the sphere and sleeve with sphere section, sleeve is remained to and ball
Face keeps linear contact lay, sleeve to be stretched in valve port passage, even if valve rod has slight flexural deformation or off-center, sleeve is remained to
Keep good sealing linear contact lay with sphere, be not in the phenomenon of card valve, thus realize controlling valve good sealing property and
High reliability, it is ensured that control valve well runs.
In above-mentioned rotary valve control valve, the valve port passage is also arranged in pairs, and two paired valve port passages are on valve rod
Central Symmetry.This structure when valve rod hydraulic fluid port and sleeve are connected or are ended, impact direction that hydraulic oil is produced to valve rod conversely,
So as to play the effect for offseting, the stability of control valve is improved, noise when valve works is reduced, while the operation to valve rod becomes
It is easy to.
In above-mentioned rotary valve control valve, two spring cavitys of the valve port passage being arranged in pairs are interconnected in valve body
Afterwards from the hydraulic fluid port connection of valve body surface or the spring cavity of two valve port passages the being arranged in pairs oil different with valve body surface
Mouth connection.Two spring cavitys of the valve port passage being arranged in pairs are interconnected in valve body, and valve body surface is passed through after connection
Hydraulic fluid port be connected to hydraulic actuation element such as oil cylinder or hydraulic motor fuel feeding or with the hydraulic fluid port of next linkage control valve；Certainly set in pairs
The two valve port passages put each hydraulic fluid ports different from two of valve body surface can also be connected, and be realized simultaneously to two hydraulic pressure
Actuating element fuel feeding, such as simultaneously to two hydraulic jack fuel feeding.
The beneficial effects of the invention are as follows：
1st, valve rod is made up of some valve rod sections, and relative to overall valve rod, the difficulty of processing of valve rod sections is relatively easy to, special
It is not relatively simple in the moulding of valve rod oil duct for forming stem internal, while in multiple valve rod sections of composition valve rod, can
It is identical with the structure of the valve rod sections for having part, it is greatly improved its interchangeability and reduces difficulty of processing.
2nd, the leakage rate when linear sealing of the sphere nodule structure and sleeve on valve rod considerably reduces normal work, pressurize
Function admirable.The resistance that the oil inlet and oil discharge outlet of symmetric configuration cause to act on valve rod cancels each other, the operation to valve rod
Become to be easy to.
Brief description of the drawings
Fig. 1 is the axial section of rotary valve valve rod of the present invention.
Fig. 2 is the structural representation of the valve rod sections with sphere section.
Fig. 3 be in Fig. 2 A-A to sectional view.
Fig. 4 is the structural representation that rotary valve of the present invention controls valve.
Fig. 5 is the sectional view from the sphere section of valve rod sections in Fig. 4.
Fig. 6 is fundamental diagram when rotary valve controls the valve rod of valve in diverse location.
Parts title and sequence number in figure：
Left positioning sections 11, the shaft shoulder 101, right positioning sections 12, valve rod branch sleeve 21, bolt 22, the first valve rod
Sections 31, the second valve rod sections 32, the 3rd valve rod sections 33, left valve rod oil duct 312, right valve rod oil duct 313, upper valve rod hydraulic fluid port
314th, lower valve rod hydraulic fluid port 315, rear valve rod hydraulic fluid port 316, sphere section sphere 317, preceding valve rod hydraulic fluid port 318, left valve pocket plug 41, valve body
50th, left end chamber 51, intermediate cavity 52, right-hand member chamber 53, joint 61, spring 62, sleeve 63, valve rod rotating shaft 71, right valve chamber is blocked up
First 72.
Specific embodiment
Specific embodiment is illustrated below in conjunction with the accompanying drawings.
It is a kind of rotary valve valve rod in the present embodiment, the valve rod can be used for the control valve of rotary valve.As shown in figure 1, this reality
Applying rotary valve valve rod in example includes five valve rod sections, five valve rod sections include two structure identicals positioning sections with
Three structures are identical and valve rod sections with sphere section, and two positioning sections are respectively left positioning sections 11 and right positioning sections
12, three valve rod sections with sphere section are followed successively by the first valve rod sections 31, the second valve rod sections 32, the 3rd valve rod sections
33。
As shown in Fig. 2 Fig. 3, there is sphere section on the first valve rod sections 31, sphere section has the ball around the valve rod sections
Face 317, is provided with four valve rod hydraulic fluid ports on the sphere, is respectively upper valve rod hydraulic fluid port 314, lower valve rod hydraulic fluid port 315, rear valve rod oil
Mouth 316 and preceding valve rod hydraulic fluid port 318, each valve rod hydraulic fluid port are mutually uniform in sphere, i.e., be in 90 angles between the center line of each valve rod hydraulic fluid port.
Two sections of valve rod oil ducts are provided with the first valve rod sections 31, are respectively left valve rod oil duct 312 and right valve rod oil duct 313, such as Fig. 2
Shown, one end outlet of left valve rod oil duct 312 is located on the left side of the first valve rod sections 31, the upper valve on the other end and sphere
Bar hydraulic fluid port 314 is connected with lower valve rod hydraulic fluid port 315, and upper valve rod hydraulic fluid port 314 and lower valve rod hydraulic fluid port 315 are on the first valve rod sections 31
Central Symmetry, as shown in figure 3, one end outlet of right valve rod oil duct 313 is on the right side of the first valve rod sections 31, the other end
Connected with preceding valve rod hydraulic fluid port 318 and rear valve rod hydraulic fluid port 316 on sphere section sphere 317, preceding valve rod hydraulic fluid port 318 and rear valve rod hydraulic fluid port
316 Central Symmetries on the first valve rod sections, left valve rod oil duct 312 and right valve rod oil duct 313 are in the first valve rod sections 31
It is not communicated with.Wherein the first valve rod sections 31, the second valve rod sections 32, the 3rd valve rod sections 33 structure it is identical.
As shown in figure 1, left positioning sections 11 is identical with the structure of right positioning sections 12, left positioning sections 11 is substantially in cylinder
Shape, its left and right endoporus insertion in the axial direction has shoulder 101 on the outer circumference surface of radial direction.
As shown in figure 1, it is left positioning sections 11, the first valve rod sections 31, the second valve rod sections 32, the 3rd valve rod sections 33,
Right positioning 12 5 valve rod sections of sections are sequentially connected in the axial direction, have valve rod branch sleeve 21 in junction.Connect in valve rod
There is bolt 22 between female connector cylinder 21 and valve rod sections, prevent from mutually being rotated between each valve rod sections after connection.Each valve
Bar sections connection after, it is left positioning sections 11 endoporus connect the first valve rod sections 31 left valve rod oil duct, and with the first valve rod section
The upper valve rod hydraulic fluid port 314 of section 31 is connected with lower valve rod hydraulic fluid port 315；The preceding valve rod hydraulic fluid port 318 of the first valve rod sections 31, rear valve rod oil
Mouth 316 connects the second valve rod sections through the right valve rod oil duct 313 of the first valve rod sections, the left valve rod oil duct of the second valve rod sections 32
Preceding valve rod hydraulic fluid port, rear valve rod hydraulic fluid port connection on 32；Upper valve rod hydraulic fluid port, the lower valve rod hydraulic fluid port of the second valve rod sections 32 are through the second valve
The right valve rod oil duct of bar sections 32, the left valve rod oil duct of the 3rd valve rod sections connect the upper valve rod oil on the 3rd valve rod sections 33
Mouth, the connection of lower valve rod hydraulic fluid port；The preceding valve rod hydraulic fluid port of the 3rd valve rod sections 33, rear valve rod hydraulic fluid port through the 3rd valve rod sections 33 right valve
Bar oil duct is connected with the endoporus of right positioning sections.
In the present embodiment, the valve rod is made up of four kinds of parts, is respectively positioning sections：Including left positioning sections 11 and the right side
Positioning sections 12；Valve rod sections with sphere section：Including the first valve rod sections 31, the second valve rod sections 32, the 3rd valve rod section
Section 33；Valve rod branch sleeve 21；Bolt 22；Every kind of design of part is simple, is easily worked manufacture, low cost.According to control
The function of valve, can realize controlling the function of valve by increasing and decreasing sphere section valve rod sections.
As shown in figure 4, being illustrated that a kind of rotary valve control valve in Fig. 4, the control valve contains above-mentioned rotary valve valve
Bar, additionally includes valve body 50, and valve pocket is provided with valve body 50, and above-mentioned rotary valve valve rod is arranged in valve pocket, in valve pocket
Be respectively arranged at two ends with valve rod positioning device and valve rod rotating mechanism.
As shown in figure 4, valve rod positioning device is left valve pocket plug, left valve pocket plug 41 is threadedly coupled with valve body 50, plays
The effect of plug sealing, left valve pocket plug 41 is located on the end face of valve pocket and is provided with cross recess, and the end face and left positioning sections
The contact connection of 11 left sides, plays a part of axially position and rotation pivot.
Valve rod rotating mechanism includes right valve chamber plug 72 and valve rod rotating shaft 71, right valve chamber plug 72 and the thread seal of valve body 50
Connection, has through hole at the center of right valve chamber plug 72, and one end of right valve rod rotating shaft 71 connects with the right side of right positioning sections 12
Connect, both synchronous axial systems, the other end of valve rod rotating shaft 71 stretches out from the central through hole of right valve chamber plug 72, reaches valve pocket
It is outside.From the external rotating valve rod rotating shaft 71 of valve body 50, so that rotatable valve rod, makes it be rotated in valve pocket.
Valve rod in the valve pocket of valve body 50, side wall of shoulder and valve pocket on its left positioning sections 11 and right positioning sections 12
Gap coordinates, and valve pocket is separated into three chambers, is successively from left to right left end chamber 51, intermediate cavity 52, right-hand member chamber 53,
The endoporus of left positioning sections 11 is connected by the cross recess of left valve pocket end face with left end chamber 51, and the endoporus of right positioning sections 12 is right
End chamber 53 is connected, and the left end T hydraulic fluid ports that correspondence is connected with left end chamber 51 and right-hand member chamber 53 are provided with the surface of valve body 50
With right-hand member T hydraulic fluid ports, each T hydraulic fluid ports are threadedly coupled pipe joint, for the pipeline connection being connected with fuel tank, hydraulic oil is returned to oil
Case.
Cross section at the sphere centre of the first valve rod sections 31 of valve body as shown in figure 5, the second valve rod sections 32,
Cross-sectional structure figure at the sphere centre of the 3rd valve rod sections 33 is identical with Fig. 5.Correspondence has each sphere section in valve body
The sphere section sphere of valve rod sections be provided with two valve port passages, two valve port passages on valve rod Central Symmetry, each valve
Mouth passage is vertically arranged with valve rod, and sleeve 63, one end of sleeve 63 and the first valve rod sections 31 are provided with each valve port passage
The contact connection of sphere section, the other end of sleeve 63 is spring cavity, and built-in spring 62, sleeve 63 can be in valve in valve port passage
Bar is moved in the radial direction, and the end of valve port passage is joint 61, and joint 61 is threadedly coupled with valve body 50, correspondingly first valve rod
Sections, it is A hydraulic fluid ports in the hydraulic fluid port of valve body surface, corresponding second valve rod sections, and it is P hydraulic fluid ports in the hydraulic fluid port of valve body surface, right
The 3rd valve rod sections is answered, it is B hydraulic fluid ports in the hydraulic fluid port of valve body surface, wherein A hydraulic fluid ports, B hydraulic fluid ports are used to connect with hydraulic actuation element
Logical, P hydraulic fluid ports are used for connect active with hydraulic pressure.
In the present embodiment, sleeve 63 with sphere section sphere 317 for linear contact lay is connected, with good sealing, and
Under the elastic force effect of spring, it has good adaptivity to sleeve 63, can well keep linear contact lay, and when valve rod goes out
Also be not in now serious card valve phenomenon after the deflection of radial direction, with good reliability.
In the present embodiment rotary valve control valve operation principle as shown in fig. 6, valve rod original state as shown in figure 4,
Now the upper valve rod hydraulic fluid port 314 and lower valve rod hydraulic fluid port 315 on the first valve rod sections 31, the upper valve rod on the second valve rod sections 32 are oily
Mouthful and lower valve rod hydraulic fluid port, the 3rd valve rod sections on upper valve rod hydraulic fluid port and lower valve rod hydraulic fluid port all each with corresponding valve port passage
Sleeve alignment connection, so that the P hydraulic fluid ports on valve body are turned on the T hydraulic fluid ports of the conducting of B hydraulic fluid ports, A hydraulic fluid ports and left end；Now control
1 state in the function such as Fig. 6 of valve；After valve rod turns over 45 degree of angles, the first valve rod sections 31, the second valve rod sections 32,
All valve rod hydraulic fluid ports on three valve rod sections 33 do not align with the sleeve on valve body and connect, and now control function such as Fig. 5 of valve
In such as 2 states in Fig. 6；After valve rod turns over 45 degree of angles again, now the preceding valve rod hydraulic fluid port on the first valve rod sections and
Preceding valve rod hydraulic fluid port on preceding valve rod hydraulic fluid port and rear valve rod hydraulic fluid port, the 3rd valve rod sections on valve rod hydraulic fluid port, the second valve rod sections afterwards
All each alignd with the sleeve in corresponding valve port passage with rear valve rod hydraulic fluid port and connected, now B hydraulic fluid ports pass through sleeve, the 3rd valve rod section
Right valve rod oil duct and right-hand member chamber in section, and then connected with the T hydraulic fluid ports of right-hand member, P hydraulic fluid ports pass through sleeve, the second valve rod section
The right valve rod oil duct on right valve rod oil duct, the first valve rod sections in section is connected with A hydraulic fluid ports, now controls function such as Fig. 6 of valve
In 3 positions described in.Valve rod is being rotated further, and repeats above-mentioned circulation.
In the present embodiment, four valve rod hydraulic fluid ports are provided with the sphere of same sphere section, on centrosymmetric
Two valve rod hydraulic fluid ports are one group, for less demanding control valve, the valve rod hydraulic fluid port number set on same valve rod sphere section
Amount can be kept to two, correspond to connected with left valve rod oil duct and right valve rod oil duct respectively, and now each sphere section of correspondence sets on valve body
The valve stem passage put also is one.
Claims (10)
1. a kind of rotary valve valve rod, it is characterised in that the valve rod includes some section valve rod sections, the inside of the valve rod sections
Valve rod oil duct is provided with, the valve rod sections is fixedly connected with adjacent valve rod sections successively in the axial direction, and the valve rod oil duct exists
The axial end of valve rod sections is connected with ft connection or with the valve rod oil duct in adjacent valve rod sections, is wrapped in the valve rod sections
The valve rod sections with sphere section is included, the sphere section has the ring-type sphere around the valve rod sections, each ring-type sphere
It is provided with the valve rod hydraulic fluid port connected with valve rod oil duct.
2. rotary valve valve rod according to claim 1, it is characterised in that the two adjacent section valve rod sections junctions set
There is the valve rod branch sleeve for being socketed adjacent valve rod segment end, having between the valve rod branch sleeve and valve rod sections prevents valve
The bolt that bar branch sleeve is mutually rotated with valve rod sections.
3. rotary valve valve rod according to claim 1 and 2, it is characterised in that set in the valve rod sections with sphere section
Valve rod oil duct is included in mutually different left valve rod oil duct and right valve rod oil duct in valve rod, and the left end of the left valve rod oil duct is located at
On the left side of the valve rod sections, the right-hand member of the right valve rod oil duct is located on the right side of the valve rod sections, the left valve rod
The valve rod hydraulic fluid port that the left end correspondence of the right-hand member of oil duct and the right valve rod oil duct is different from the valve rod sections sphere section is connected.
4. rotary valve valve rod according to claim 3, it is characterised in that the valve rod hydraulic fluid port set on same sphere section is
Two and on the valve rod sections Central Symmetry set.
5. rotary valve valve rod according to claim 3, it is characterised in that the valve rod hydraulic fluid port number set on same sphere section
It is four to measure, and each two constitutes a pair of valve rod hydraulic fluid port groups, therein one on the centrosymmetric valve rod hydraulic fluid port of the valve rod sections
Valve rod hydraulic fluid port group is connected with the right-hand member of the left valve rod oil duct, another left end to valve rod hydraulic fluid port group and the right valve rod oil duct
Connection.
6. rotary valve valve rod according to claim 5, it is characterised in that two pairs of center lines of valve rod hydraulic fluid port group are pressed from both sides in 90 degree
Angle.
7. the rotary valve valve rod according to any one of claim 1,2,4 to 6, it is characterised in that wrapped in the valve rod sections
Positioning sections is included, the positioning sections is located at the end of the valve rod two ends or neighbouring valve rod, and the positioning sections is cylindrical in shape, its
Center have axially through endoporus, there is the shoulder for coordinating with the valve pocket inwall of valve body on periphery.
8. a kind of rotary valve control valve, including valve body, valve rod is provided with the valve pocket of valve body, is had to valve rod in valve pocket end
The valve rod positioning device of axially position and the valve rod rotating mechanism of rotation valve rod, it is characterised in that the valve rod is claim 1
Valve rod any one of 7, corresponds to the valve port with least one vertical valve rod on each valve body described in sphere section
Passage, is provided with sleeve in each described valve port passage, the sphere of one end of the sleeve and the corresponding valve rod sphere section
Linear sealing is contacted, and the other end of the sleeve is the interior spring cavity for setting spring and being connected with hub internal bore, the spring with it is described
The contact connection of sleeve simultaneously provides elastic force to sleeve, and the spring cavity connects with the valve body oil duct in valve body, when valve rod hydraulic fluid port and
The corresponding described valve rod oil duct connected with valve rod hydraulic fluid port when sleeve is connected is connected through sleeve with valve body oil duct.
9. rotary valve according to claim 8 controls valve, it is characterised in that the valve port passage is also arranged in pairs, paired
Two valve port passages are on valve rod Central Symmetry.
10. rotary valve according to claim 8 controls valve, it is characterised in that two valve port passages being arranged in pairs
Two bullets of the valve port passage that spring cavity is connected or be arranged in pairs after being interconnected in valve body with the hydraulic fluid port of valve body surface
The hydraulic fluid port connection different from valve body surface of spring chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727357.4A CN105298963B (en) | 2015-10-30 | 2015-10-30 | Rotary valve valve rod and control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727357.4A CN105298963B (en) | 2015-10-30 | 2015-10-30 | Rotary valve valve rod and control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298963A CN105298963A (en) | 2016-02-03 |
| CN105298963B true CN105298963B (en) | 2017-06-16 |
Family
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| CN201510727357.4A Active CN105298963B (en) | 2015-10-30 | 2015-10-30 | Rotary valve valve rod and control valve |
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| DE4032811A1 (en) * | 1990-10-16 | 1992-04-23 | Bayerische Motoren Werke Ag | Rotary piston valve servo selector - has piston with radial recess which varies line connections as its position changes |
| DE4215226A1 (en) * | 1992-05-09 | 1993-11-11 | Kba Planeta Ag | Rotary slide valve for controlling pressure and partial vacuum systems in printing machines - contains rotary slider with its own pressure reservoir and has overflow channels in line with outlets and connected to separating and lift suction members |
| CN2596087Y (en) * | 2002-12-30 | 2003-12-31 | 哈尔滨工程大学 | Man-power rotating type change valve |
| WO2008116481A1 (en) * | 2007-03-26 | 2008-10-02 | Festo Ag & Co. Kg | Tie-rod and module arrangement clamped together thereto |
| CN104373630A (en) * | 2013-08-17 | 2015-02-25 | 宋久林 | Rotary proportional reversing valve |
| CN203532388U (en) * | 2013-11-20 | 2014-04-09 | 圣邦集团有限公司 | Reversing valve rod |
| CN204493770U (en) * | 2015-01-16 | 2015-07-22 | 徐工集团工程机械股份有限公司 | Changeover valve core, commutation connection and load sensing multi-way valve |
| CN104806597A (en) * | 2015-04-16 | 2015-07-29 | 浙江纺织服装职业技术学院 | Reversing rotational valve for controlling hydraulic dual rotation and dual feeding of cold pipe mill |
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| CN105298963A (en) | 2016-02-03 |
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