CN105298963A - Rotary valve type valve rod and control valve - Google Patents
Rotary valve type valve rod and control valve Download PDFInfo
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- CN105298963A CN105298963A CN201510727357.4A CN201510727357A CN105298963A CN 105298963 A CN105298963 A CN 105298963A CN 201510727357 A CN201510727357 A CN 201510727357A CN 105298963 A CN105298963 A CN 105298963A
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Abstract
The invention relates to a rotary valve type valve rod and a control valve in order to overcome the defects of difficult machining and high fabrication cost of existing rotary valve type valve rods. The rotary valve type valve rod comprises a plurality of valve rod sections; valve rod oil channels are designed in the valve rod sections; the adjacent valve rod sections are sequentially and fixedly connected in the axial direction; the positions, on the axial end faces of the valve rod sections, of the valve rod oil channels are communicated with the outside or with the valve rod oil channels in the adjacent valve rod sections; some valve rod sections are provided with spherical surface joints which are provided with annular spherical surfaces surrounding the valve rod sections; each annular spherical surface is provided with a valve rod oil opening which is communicated with the corresponding valve rod oil channel. The valve rod is mainly composed of the multiple valve rod sections, the machining difficulty of the valve rod sections is low, and molding for forming the valve rod oil channels is simple. Meanwhile, the structures of part of the multiple valve rod sections forming the valve rod can be made to be identical, the interchangeability can be greatly improved, and the machining difficulty can be greatly reduced.
Description
Technical field
The present invention relates to a kind of control block hydraulic unit with, more particularly, relate to a kind of rotary valve valve rod and there is the control valve of this valve rod.
Background technique
In existing hydraulic control valve, be broadly divided into two classes, one class is sliding valve style, this kind of valve comprises valve body, in the valve pocket of valve body, arrange valve rod, valve rod is cylindric, which is provided with multiple columned shoulder, shoulder and valve pocket inwall clearance seal, valve rod moves axially and the path between hydraulic fluid port different on valve body is blocked or is communicated with.Another kind of is rotary valve control valve, this kind of valve comprises valve body, in the valve pocket of valve body, arrange valve rod, valve rod two ends are fixed and valve rod slewing gear is established in one end wherein, make valve rod rotatable, oil duct is established in valve rod, have a side surface being arranged on valve rod at least in the outlet of oil duct and entrance, valve rod and valve pocket inwall gap, valve body is provided with multiple hydraulic fluid port, when valve rod rotates, stem internal oil duct is connected from the different hydraulic fluid ports on different valve body or is ended thus different functions.
In above-mentioned rotary valve control valve, in the fit system of valve rod and valve pocket inwall and guiding valve, the fit system of valve rod and valve pocket inwall is similar, all adopt gap sealed guiding valve form, because there is certain gap in valve rod and valve body, so a certain amount of leakage must be had, and valve rod has the guiding of certain length, there is valve card phenomenon when valve rod or valve body generation micro-strain or valve rod processing exist when error all can make valve rod move in valve body.
For rotary valve valve rod, because valve rod oil duct arranged by needs in valve rod, but due to valve rod oil duct be not axially through on the axial direction of valve rod, therefore there is manufacturing difficulty, shortcoming that manufacture cost is high in existing rotary valve valve rod.
Summary of the invention
The technical problem to be solved in the present invention is for existing rotary valve valve rod processing difficulties, manufacture cost high shortcoming, and provide a kind of easy processing, low cost of manufacture rotary valve valve rod and there is the control valve of this valve rod.
The present invention is the technological scheme realizing its object is such: construct a kind of rotary valve valve rod, described valve rod comprises several valve rod sections, the inside of described valve rod sections is provided with valve rod oil duct, described valve rod sections is fixedly connected with adjacent valve rod sections in the axial direction successively, described valve rod oil duct is communicated with ft connection or with the valve rod oil duct in adjacent valve rod sections at the axial end of valve rod sections, described valve rod sections comprises the valve rod sections with sphere joint, described sphere saves the ring-type sphere had around described valve rod sections, each ring-type sphere is provided with the valve rod hydraulic fluid port be communicated with valve rod oil duct.In the present invention, valve rod forms primarily of some valve rod sections, relative to whole valve rod, the difficulty of processing of valve rod sections is comparatively easy, and particularly comparatively simple in the moulding of valve rod oil duct forming stem internal, form in multiple valve rod sections of valve rod simultaneously, the structure of the valve rod sections of part can be had identical, greatly can improve its interchangeability and reduce difficulty of processing.
In above-mentioned rotary valve valve rod, described two adjacent joint valve rod sections joints are provided with the valve rod coupling sleeve being socketed adjacent valve rod sections end, have the holding down bolt preventing valve rod coupling sleeve and valve rod sections from mutually rotating between described valve rod coupling sleeve and valve rod sections.The endoporus of described valve rod coupling sleeve is provided with internal thread, and described adjacent two valve rod sections terminations are provided with the outside thread mated with described valve rod coupling sleeve internal thread.In two adjacent in addition valve rod sections, can also be that the end endoporus of one of them valve rod sections establishes internal thread, outside thread is established in the end of another valve rod sections, and these two valve rod sections realize the connection of two valve rod sections by internal thread and externally threaded being connected.
In above-mentioned rotary valve valve rod, there is the valve rod oil duct arranged in the valve rod sections of sphere joint and be included in mutually different left valve rod oil duct and right valve rod oil duct in valve rod, the left end of described left valve rod oil duct is positioned on the left side of this valve rod sections, the right-hand member of described right valve rod oil duct is positioned on the right side of this valve rod sections, and the right-hand member of described left valve rod oil duct saves different valve rod hydraulic fluid ports with the left end correspondence of described right valve rod oil duct from this valve rod sections sphere and is communicated with.The valve rod hydraulic fluid port that same sphere joint is arranged is two and arranges about described valve rod sections Central Symmetry.Or the valve rod hydraulic fluid port quantity arranged on same sphere joint is four, every two form a pair valve rod hydraulic fluid port group about the centrosymmetric valve rod hydraulic fluid port of described valve rod sections, a pair valve rod hydraulic fluid port group is wherein communicated with the right-hand member of described left valve rod oil duct, and another is communicated with the left end of valve rod hydraulic fluid port group with described right valve rod oil duct.The center line of two pairs of valve rod hydraulic fluid port groups is 90 degree of angles.
In above-mentioned rotary valve valve rod, described valve rod sections comprises location sections, described location sections lays respectively at the end of described valve rod two ends or contiguous valve rod, to locate sections be tubular, its center has axially through endoporus, circumferential surface has the shoulder for coordinating with the valve pocket inwall of valve body.Shoulder on the sections of location coordinates with valve body, plays the effect of axle journal, plays radial location and support valve rod making it rotate to valve rod.
The present invention is another technological scheme realizing its object is such: construct a kind of rotary valve control valve, comprise valve body, valve rod is provided with in the valve pocket of valve body, there is in valve pocket end the valve rod rotating mechanism of valve rod positioning device to valve rod axially locating and rotation valve rod, described valve rod is aforesaid valve rod, corresponding each sphere saves the valve port passage described valve body with at least one vertical described valve rod, sleeve is provided with in each described valve port passage, the sphere linear sealing that one end and the corresponding described valve rod sphere of described sleeve save contacts, the other end of described sleeve establishes spring and the spring chamber be communicated with hub internal bore in being, described spring is connected with the contact of described sleeve and provides elastic force to sleeve, described spring chamber is communicated with the valve body oil duct in valve body, the corresponding described valve rod oil duct be communicated with valve rod hydraulic fluid port when valve rod hydraulic fluid port is communicated with sleeve is communicated with valve body oil duct through sleeve.In the present invention, primarily of some valve rod sections compositions, relative to whole valve rod, the difficulty of processing of valve rod sections is comparatively easy, and particularly comparatively simple in the moulding of valve rod oil duct forming stem internal, form in multiple valve rod sections of valve rod simultaneously, the structure of the valve rod sections of part can be had identical, greatly can improve its interchangeability and reduce difficulty of processing.Valve rod positioning device and valve rod rotating mechanism axially locating valve rod, and rotatably, when valve rod rotates, the valve rod hydraulic fluid port that the valve rod oil duct of its inside is saved by sphere and the cooperation of sleeve and the different oil ducts that are communicated with on valve body, thus oil circuit control moves towards.Valve rod sphere joint is connected for boring the linear contact lay sealed with between sleeve, even if along with the sphere of sphere joint and the wearing and tearing of sleeve, sleeve still can contact with sphere retention wire, sleeve is flexible in valve port passage, even if valve rod has slight bending deflection or departs from center, sleeve still can keep good potted line to contact with sphere, there will not be the phenomenon of card valve, thus realize good sealing property and the high reliability of control valve, guarantee that control valve well runs.
In above-mentioned rotary valve control valve, described valve port passage is also arranged in pairs, and two paired valve port passages are about valve rod Central Symmetry.This structure is when valve rod hydraulic fluid port and sleeve are connected or ended, and the impact direction that hydraulic oil produces valve rod is contrary, thus plays the effect offseted, and improves the stability of control valve, reduces noise when valve works, becomes simultaneously be easy to the operation of valve rod.
In above-mentioned rotary valve control valve, to be communicated with from the hydraulic fluid port of valve body surface after the spring chamber of two the described valve port passages arranged in pairs is interconnected in valve body or hydraulic fluid port that the spring chamber of paired two the described valve port passages arranged is different with valve body surface is communicated with.The spring chamber of two described valve port passages of paired setting is interconnected in valve body, after being communicated with by the hydraulic fluid port of valve body surface to hydraulic actuating element as oil cylinder or oil hydraulic motor fuel feeding or be connected with the hydraulic fluid port of next linkage control valve; Certainly two the described valve port passages arranged in pairs also can connect from two different hydraulic fluid ports of valve body surface separately, realize simultaneously to two hydraulic actuating element fuel feeding, such as, simultaneously to two hydraulic jack fuel feeding.
The invention has the beneficial effects as follows:
1, valve rod is made up of some valve rod sections, relative to overall valve rod, the difficulty of processing of valve rod sections is comparatively easy, particularly comparatively simple in the moulding of valve rod oil duct forming stem internal, form in multiple valve rod sections of valve rod simultaneously, the structure of the valve rod sections of part can be had identical, greatly can improve its interchangeability and reduce difficulty of processing.
2, the sphere joint structure on valve rod and the linear sealing of sleeve considerably reduce leakage rate during normal work, and pressure maintaining performance is excellent.The filler opening of symmetric configuration and oil drain out make the resistance acted on valve rod cancel each other, and become be easy to the operation of valve rod.
Accompanying drawing explanation
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 joint.
Fig. 3 be in Fig. 2 A-A to sectional view.
Fig. 4 is the structural representation of rotary valve control valve of the present invention.
Fig. 5 is the sectional view from the sphere joint of valve rod sections in Fig. 4.
Fig. 6 is the valve rod of rotary valve control valve fundamental diagram when being in diverse location.
Component title and sequence number in figure:
Left location sections 11, the shaft shoulder 101, right location sections 12, valve rod coupling sleeve 21, holding down bolt 22, first valve rod sections 31, second valve rod sections 32, 3rd valve rod sections 33, left valve rod oil duct 312, right valve rod oil duct 313, upper valve rod hydraulic fluid port 314, lower valve rod hydraulic fluid port 315, rear valve rod hydraulic fluid port 316, sphere joint sphere 317, front valve rod hydraulic fluid port 318, left valve pocket plug 41, valve body 50, 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 plug 72.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments is described.
Be a kind of rotary valve valve rod in the present embodiment, this valve rod can be used for the control valve of rotary valve.As shown in Figure 1, rotary valve valve rod in the present embodiment comprises five valve rod sections, it is identical with three structures and have the valve rod sections of sphere joint that five valve rod sections comprise the identical location sections of two structures, two location sections be respectively left location sections 11 and right location sections 12, three have sphere joint valve rod sections be followed successively by the first valve rod sections 31, second valve rod sections 32, the 3rd valve rod sections 33.
As shown in Fig. 2 Fig. 3, first valve rod sections 31 has sphere joint, sphere saves the sphere 317 had around this valve rod sections, this sphere is provided with four valve rod hydraulic fluid ports, upper valve rod hydraulic fluid port 314, lower valve rod hydraulic fluid port 315, rear valve rod hydraulic fluid port 316 and front valve rod hydraulic fluid port 318 respectively, each valve rod hydraulic fluid port is mutually uniform at sphere, i.e. in 90 angles between the center line of each valve rod hydraulic fluid port.Two sections of valve rod oil ducts are provided with in the first valve rod sections 31, left valve rod oil duct 312 and right valve rod oil duct 313 respectively, as shown in Figure 2, one end outlet of left valve rod oil duct 312 is positioned on the left side of the first valve rod sections 31, the other end is communicated with lower valve rod hydraulic fluid port 315 with the upper valve rod hydraulic fluid port 314 on sphere, upper valve rod hydraulic fluid port 314 and lower valve rod hydraulic fluid port 315 are about the Central Symmetry of the first valve rod sections 31, as shown in Figure 3, one end outlet of right valve rod oil duct 313 is positioned on the right side of the first valve rod sections 31, the front valve rod hydraulic fluid port 318 that the other end and sphere save on sphere 317 is communicated with rear valve rod hydraulic fluid port 316, front valve rod hydraulic fluid port 318 and rear valve rod hydraulic fluid port 316 are about the Central Symmetry of the first valve rod sections, left valve rod oil duct 312 and right valve rod oil duct 313 do not communicate in the first valve rod sections 31.Wherein the structure of the first valve rod sections 31, second valve rod sections 32, the 3rd valve rod sections 33 is identical.
As shown in Figure 1, left location sections 11 is identical with the structure of right location sections 12, and left location sections 11 is roughly in tubular, and left and right endoporus is through in the axial direction for it, and the outer peripheral surface of radial direction has shoulder 101.
As shown in Figure 1, left location sections 11, first valve rod sections 31, second valve rod sections 32, the 3rd valve rod sections 33, right location sections 12 5 valve rod sections connect in the axial direction successively, have valve rod coupling sleeve 21 in joint.There is holding down bolt 22 between valve rod coupling sleeve 21 and valve rod sections, prevent from mutually rotating between each valve rod sections after connecting.After each valve rod sections connects, the endoporus of left location sections 11 is communicated with the left valve rod oil duct of the first valve rod sections 31, and is communicated with lower valve rod hydraulic fluid port 315 with the upper valve rod hydraulic fluid port 314 of the first valve rod sections 31; The front valve rod hydraulic fluid port 318 of the first valve rod sections 31, rear valve rod hydraulic fluid port 316 through the left valve rod oil duct of right valve rod oil duct 313, the second valve rod sections 32 of the first valve rod sections be communicated with valve rod hydraulic fluid port before on the second valve rod sections 32, after valve rod hydraulic fluid port be communicated with; The upper valve rod hydraulic fluid port of the second valve rod sections 32, lower valve rod hydraulic fluid port are communicated with upper valve rod hydraulic fluid port on the 3rd valve rod sections 33 through the right valve rod oil duct of the second valve rod sections 32, the left valve rod oil duct of the 3rd valve rod sections, lower valve rod hydraulic fluid port is communicated with; The front valve rod hydraulic fluid port of the 3rd valve rod sections 33, rear valve rod hydraulic fluid port are communicated with the endoporus of right location sections through the right valve rod oil duct of the 3rd valve rod sections 33.
In the present embodiment, this valve rod is made up of four kinds of parts, is location sections respectively: comprise left location sections 11 and right location sections 12; There is the valve rod sections of sphere joint: comprise the first valve rod sections 31, second valve rod sections 32, the 3rd valve rod sections 33; Valve rod coupling sleeve 21; Holding down bolt 22; Often kind of design of part is simple, and easy manufacturing, cost is low.According to the function of control valve, realize the function of control valve by increase and decrease sphere joint valve rod sections.
As shown in Figure 4, shown in Fig. 4 is a kind of rotary valve control valve, this control valve contains above-mentioned rotary valve valve rod, also comprise valve body 50 in addition, valve pocket is provided with in valve body 50, above-mentioned rotary valve valve rod is arranged in valve pocket, is respectively equipped with valve rod positioning device and valve rod rotating mechanism at the two ends of valve pocket.
As shown in Figure 4, valve rod positioning device is left valve pocket plug, left valve pocket plug 41 is threaded with valve body 50, play the effect of plug sealing, the end face that left valve pocket plug 41 is positioned at valve pocket is provided with cross recess, and this end face contacts with sections 11 left side, left location and connects, play the effect of axially locating and rotation pivot.
Valve rod rotating mechanism comprises right valve chamber plug 72 and valve rod rotating shaft 71, right valve chamber plug 72 is connected with valve body 50 thread seal, at the center of right valve chamber plug 72, there is through hole, one end of right valve rod rotating shaft 71 is connected with the right side of right location sections 12, both synchronous axial system, the other end of valve rod rotating shaft 71 stretches out from the central through bore of right valve chamber plug 72, reaches the outside of valve pocket.From the external rotating valve rod rotating shaft 71 of valve body 50, thus rotatable valve rod, make it rotate in valve pocket.
Valve rod is in the valve pocket of valve body 50, shoulder on its left location sections 11 and right location sections 12 coordinates with the sidewall spacers of valve pocket, valve pocket is separated into three chambers, left end chamber 51 from left to right successively, intermediate cavity 52, right-hand member chamber 53, the endoporus of left location sections 11 is communicated with left end chamber 51 by the cross recess of left valve pocket end face, the endoporus right-hand member chamber 53 of right location sections 12 is communicated with, the corresponding left end T hydraulic fluid port that is communicated with right-hand member chamber 53 with left end chamber 51 and right-hand member T hydraulic fluid port is provided with on the surface at valve body 50, each T hydraulic fluid port is threaded pipe joint, pipeline for being connected with fuel tank connects, hydraulic oil is made to get back to fuel tank.
Cross section at the sphere centre place of the first valve rod sections 31 of valve body is as shown in Figure 5, identical at cross-sectional structure figure and the Fig. 5 at the sphere centre place of the second valve rod sections 32, the 3rd valve rod sections 33.In valve body, the corresponding sphere joint sphere with the valve rod sections of each sphere joint is provided with two valve port passages, two valve port passages are about valve rod Central Symmetry, each valve port passage is vertical with valve rod to be arranged, sleeve 63 is provided with in each valve port passage, one end of sleeve 63 is saved to contact with the sphere of the first valve rod sections 31 and is connected, the other end of sleeve 63 is spring chamber, built-in spring 62, sleeve 63 can moving at valve rod in the radial direction in valve port passage, the end of valve port passage is joint 61, joint 61 is threaded with valve body 50, corresponding first valve rod sections, its hydraulic fluid port in valve body surface is A hydraulic fluid port, corresponding second valve rod sections, its hydraulic fluid port in valve body surface is P hydraulic fluid port, corresponding 3rd valve rod sections, its hydraulic fluid port in valve body surface is B hydraulic fluid port, wherein A hydraulic fluid port, B hydraulic fluid port is used for being communicated with hydraulic actuating element, P hydraulic fluid port is used for being communicated with hydraulic pressure is active.
In the present embodiment, sleeve 63 and sphere save sphere 317 for linear contact lay and are connected, there is good sealing, and sleeve 63 is under the elastic force effect of spring, it has good adaptivity, retention wire can contact well, and also there will not be serious card valve phenomenon after radial deflection appears in valve rod, there is good reliability.
The working principle of the rotary valve control valve in the present embodiment as shown in Figure 6, the original state of valve rod as shown in Figure 4, upper valve rod hydraulic fluid port 314 now on the first valve rod sections 31 and the upper valve rod hydraulic fluid port on lower valve rod hydraulic fluid port 315, second valve rod the sections 32 and upper valve rod hydraulic fluid port on lower valve rod hydraulic fluid port, the 3rd valve rod sections and lower valve rod hydraulic fluid port aligns with the sleeve in corresponding valve port passage all separately and is communicated with, thus makes the T hydraulic fluid port conducting of P hydraulic fluid port on valve body and the conducting of B hydraulic fluid port, A hydraulic fluid port and left end, now the function of control valve is as 1 state in Fig. 6, after valve rod turns over miter angle degree, all valve rod hydraulic fluid ports on the first valve rod sections 31, second valve rod sections 32, the 3rd valve rod sections 33 do not align with the sleeve on valve body and are communicated with, now control valve function as in Fig. 5 as 2 states in Fig. 6, after valve rod turns over miter angle degree again, front valve rod hydraulic fluid port now on the first valve rod sections and rear valve rod hydraulic fluid port, front valve rod hydraulic fluid port on second valve rod sections and rear valve rod hydraulic fluid port, front valve rod hydraulic fluid port on 3rd valve rod sections and rear valve rod hydraulic fluid port align with the sleeve in corresponding valve port passage all separately and are communicated with, now B hydraulic fluid port passes through sleeve, right valve rod oil duct on 3rd valve rod sections and right-hand member chamber, and then be communicated with the T hydraulic fluid port of right-hand member, P hydraulic fluid port passes through sleeve, right valve rod oil duct on second valve rod sections, right valve rod oil duct on first valve rod sections is communicated with A hydraulic fluid port, now the function of control valve is as described in 3 positions in Fig. 6.Valve rod is being rotated further, and repeats above-mentioned circulation.
In the present embodiment, the sphere that same sphere saves is provided with four valve rod hydraulic fluid ports, it is one group about centrosymmetric two valve rod hydraulic fluid ports, for less demanding control valve, the upper valve rod hydraulic fluid port quantity arranged of same valve rod sphere joint can be kept to two, correspondence is communicated with right valve rod oil duct with left valve rod oil duct respectively, and the valve stem passage that now on valve body, corresponding each sphere joint is arranged also is one.
Claims (10)
1. a rotary valve valve rod, it is characterized in that described valve rod comprises some joint valve rod sections, the inside of described valve rod sections is provided with valve rod oil duct, described valve rod sections is fixedly connected with adjacent valve rod sections in the axial direction successively, described valve rod oil duct is communicated with ft connection or with the valve rod oil duct in adjacent valve rod sections at the axial end of valve rod sections, described valve rod sections comprises the valve rod sections with sphere joint, described sphere saves the ring-type sphere had around described valve rod sections, and each ring-type sphere is provided with the valve rod hydraulic fluid port be communicated with valve rod oil duct.
2. rotary valve valve rod according to claim 1, it is characterized in that described two adjacent joint valve rod sections joints are provided with the valve rod coupling sleeve being socketed adjacent valve rod sections end, there is between described valve rod coupling sleeve and valve rod sections the holding down bolt preventing valve rod coupling sleeve and valve rod sections from mutually rotating.
3. rotary valve valve rod according to claim 1 and 2, it is characterized in that having the valve rod oil duct arranged in the valve rod sections of sphere joint is included in mutually different left valve rod oil duct and right valve rod oil duct in valve rod, the left end of described left valve rod oil duct is positioned on the left side of this valve rod sections, the right-hand member of described right valve rod oil duct is positioned on the right side of this valve rod sections, and the right-hand member of described left valve rod oil duct saves different valve rod hydraulic fluid ports with the left end correspondence of described right valve rod oil duct from this valve rod sections sphere and is communicated with.
4. rotary valve valve rod according to claim 3, is characterized in that the valve rod hydraulic fluid port arranged on same sphere joint is two and arranges about described valve rod sections Central Symmetry.
5. rotary valve valve rod according to claim 3, it is characterized in that the valve rod hydraulic fluid port quantity arranged on same sphere joint is four, every two form a pair valve rod hydraulic fluid port group about the centrosymmetric valve rod hydraulic fluid port of described valve rod sections, a pair valve rod hydraulic fluid port group is wherein communicated with the right-hand member of described left valve rod oil duct, and another is communicated with the left end of valve rod hydraulic fluid port group with described right valve rod oil duct.
6. rotary valve valve rod according to claim 3, is characterized in that the center line of two pairs of valve rod hydraulic fluid port groups is 90 degree of angles.
7. rotary valve valve rod according to any one of claim 1 to 6, it is characterized in that described valve rod sections comprises location sections, described location sections is positioned at the end of described valve rod two ends or contiguous valve rod, to locate sections be tubular, its center has axially through endoporus, circumferential surface has the shoulder for coordinating with the valve pocket inwall of valve body.
8. a rotary valve control valve, comprise valve body, valve rod is provided with in the valve pocket of valve body, there is in valve pocket end the valve rod rotating mechanism of valve rod positioning device to valve rod axially locating and rotation valve rod, it is characterized in that the valve rod of described valve rod according to any one of claim 1 to 7, corresponding each sphere saves the valve port passage described valve body with at least one vertical described valve rod, sleeve is provided with in each described valve port passage, the sphere linear sealing that one end and the corresponding described valve rod sphere of described sleeve save contacts, the other end of described sleeve establishes spring and the spring chamber be communicated with hub internal bore in being, described spring is connected with the contact of described sleeve and provides elastic force to sleeve, described spring chamber is communicated with the valve body oil duct in valve body, the corresponding described valve rod oil duct be communicated with valve rod hydraulic fluid port when valve rod hydraulic fluid port is communicated with sleeve is communicated with valve body oil duct through sleeve.
9. rotary valve control valve according to claim 7, is characterized in that described valve port passage is also arranged in pairs, and two paired valve port passages are about valve rod Central Symmetry.
10. rotary valve control valve according to claim 8, is characterized in that being communicated with from the hydraulic fluid port of valve body surface after the spring chamber of two the described valve port passages arranged in pairs is interconnected in valve body or hydraulic fluid port that the spring chamber of paired two the described valve port passages arranged is different with valve body surface is communicated with.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510727357.4A CN105298963B (en) | 2015-10-30 | 2015-10-30 | Rotary valve valve rod and control valve |
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| CN201510727357.4A CN105298963B (en) | 2015-10-30 | 2015-10-30 | Rotary valve valve rod and control valve |
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| CN105298963A true CN105298963A (en) | 2016-02-03 |
| CN105298963B CN105298963B (en) | 2017-06-16 |
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| CN105971962A (en) * | 2016-07-15 | 2016-09-28 | 辽宁海裕流体传控系统有限公司 | Single valve core rotation type hydraulic valve driven by single motor |
| CN109210239A (en) * | 2017-07-03 | 2019-01-15 | 浙江三花制冷集团有限公司 | A kind of rotating type change valve and its refrigeration system |
| CN110529629A (en) * | 2019-09-05 | 2019-12-03 | 惠州市淼斯特实业有限公司 | A kind of multi gear is porous to control the valve to discharge water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971962A (en) * | 2016-07-15 | 2016-09-28 | 辽宁海裕流体传控系统有限公司 | Single valve core rotation type hydraulic valve driven by single motor |
| CN105971962B (en) * | 2016-07-15 | 2017-12-05 | 辽宁海裕流体传控系统有限公司 | A kind of motor-driven single spool rotary type hydraulic valve of list |
| CN109210239A (en) * | 2017-07-03 | 2019-01-15 | 浙江三花制冷集团有限公司 | A kind of rotating type change valve and its refrigeration system |
| CN109210239B (en) * | 2017-07-03 | 2020-08-11 | 浙江三花制冷集团有限公司 | Rotary reversing valve and refrigerating system thereof |
| CN110529629A (en) * | 2019-09-05 | 2019-12-03 | 惠州市淼斯特实业有限公司 | A kind of multi gear is porous to control the valve to discharge water |
| CN111649153A (en) * | 2020-07-06 | 2020-09-11 | 台州市路桥区马赛卫浴有限公司 | Water faucet capable of adjusting water spraying position |
| CN112923122A (en) * | 2021-01-19 | 2021-06-08 | 沂源县华阳能源设备有限公司 | Novel valve rod sealing device |
| CN114110404A (en) * | 2021-12-01 | 2022-03-01 | 江苏中科朗润智能科技有限公司 | Pushing type oil way distributor on-off control device |
| CN114110404B (en) * | 2021-12-01 | 2023-02-28 | 江苏中科朗润智能科技有限公司 | Pushing type oil way distributor on-off control device |
| CN114215814A (en) * | 2021-12-02 | 2022-03-22 | 珠海格力大金精密模具有限公司 | Mold changing switch and method for connecting mold changing switch and air cylinder |
| CN114215814B (en) * | 2021-12-02 | 2023-12-05 | 珠海格力大金精密模具有限公司 | Die change switch and method for connecting die change switch with cylinder |
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