CN201255252Y - Rotary type fluid-distributing valve - Google Patents
Rotary type fluid-distributing valve Download PDFInfo
- Publication number
- CN201255252Y CN201255252Y CNU2008200538461U CN200820053846U CN201255252Y CN 201255252 Y CN201255252 Y CN 201255252Y CN U2008200538461 U CNU2008200538461 U CN U2008200538461U CN 200820053846 U CN200820053846 U CN 200820053846U CN 201255252 Y CN201255252 Y CN 201255252Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- rotary
- valve
- end cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a rotary fluid distribution valve which comprises a valve body, a rotary valve core, a driving motor, a sealing end cover and an opening end cover, wherein, the sealing end cover and the opening end cover are respectively connected with both ends of the valve body to form a sealing cavity. One end of the rotary valve core arranged in the sealing cavity is connected with the driving motor. In the sealing cavity, the sealing end cover forms a high-pressure oil cavity with the rotary valve and the valve body, and the opening end cover forms a low-pressure oil cavity with the rotary valve and the valve body. The high-pressure oil cavity is not communicated with the low-pressure oil cavity. A plurality of valve body oil holes for connecting an executive part oil path are arranged in the periphery of the valve body. A plurality of valve cover oil holes are arranged in the periphery of the rotary valve core. The valve body oil holes are communicated with the sealing cavity by valve core oil holes. The rotary fluid distribution valve has the advantages of simple and compact structure, small size and high reliability, and can orderly, directionally and quantitatively supply fluids with certain pressure for a plurality of same or similar executive parts, so the executive parts can do order reciprocating motion.
Description
Technical field
The utility model is mainly concerned with the control field of fluid, refers in particular to a kind of rotary type fluid-distributing valve.
Background technique
At present, in the electronically controlled hydraulic system commonly used both at home and abroad, various solenoid valves are mainly adopted in the control fluid motion, are controlled and driven the open and close of valve by electrical signal.Finish the synergy movement of a plurality of actuators if desired, then need a plurality of solenoid valves to come Collaborative Control, this has just proposed higher requirement to the reliability of control system, otherwise in case control is slipped up, the action that actuator is realized is with distortion even cause accident.If a plurality of power units are done orderly to-and-fro motion, then also need to increase various selector valves, further increase the complexity of hydraulic system.In addition, be subjected to the influence of the long-pending and performance characteristic of actual electromagnetic valve body, many occasions that need Collaborative Control, conventional solenoid valve and selector valve are difficult to satisfy the demand.
The model utility content
When hydraulic control systems such as design robot, miniature power control system, if require that the identical or similar one group of power unit of control is carried out in order, during to-and-fro motion, need one times even be several times as much as solenoid valve, the selector valve of power unit quantity, there are problems such as volume is big, Heavy Weight, poor reliability, complexity height, cost height, often cause final performance index can not satisfy practical application request.Problem to be solved in the utility model is: at the technical problem of existing hydraulic system existence, provide a kind of simple and compact for structure, volume is little, reliability is high, Control Parameter is simple, can realize the rotary type fluid-distributing valve of compound action, can carry out in order, have direction to a plurality of identical or similar power units and supply with quantitatively the fluid of certain pressure is arranged, thereby make power unit carry out orderly to-and-fro motion.
For solving the problems of the technologies described above, the solution thinking that the utility model proposes is: design a kind of rotary type fluid-distributing valve, adopt the motion of a drive motor control valve, with the timing Design of each power unit in mechanism, to need to carry out in order, reciprocating each power unit is connected to distributing valve successively, the oil circuit pressure of power unit is by the supply oil circuit decision of rotary type fluid-distributing valve, the reciprocating frequence of power unit is by the rotating speed control of drive motor, phase sequence between the power unit is determined by the coupled position with distributing valve, therefore it is little to have volume, in light weight, the reliability height, complexity is low, low cost and other advantages can satisfy robot, the demand of hydraulic systems such as miniature power control system.
The solution that the utility model proposes is: a kind of rotary type fluid-distributing valve, it is characterized in that: it comprises valve body, rotary spool, drive motor, closed end cap and open end cap, described closed end cap and open end cap are connected to two ends of valve body and form enclosed cavity, rotary spool one end that is installed in the enclosed cavity links to each other with drive motor, closed end cap and rotary spool in the described enclosed cavity, form high-voltage oil cavity between the valve body, open end cap and rotary spool, form the low pressure oil pocket between the valve body, be not communicated with between high-voltage oil cavity and the low pressure oil pocket; The outer circumferential side of described valve body offers several valve body oilholes that is used for connecting the power unit oil circuit, and the outer circumferential side of rotary spool offers several spool oilholes, and the valve body oilhole is communicated with enclosed cavity by the spool oilhole.
The number of described valve body oilhole is n, and wherein n is an even number, and per two valve body oilholes that are positioned on the valve diameter direction constitute one group.
The number of described spool oilhole is n, and wherein n is an even number, and per two spool oilholes that are positioned on the rotary valve core diameter direction constitute one group.
Offer the oil inlet hole that links to each other with the high pressure oil supply arrangement on the described closed end cap, described oil inlet hole is communicated with high-voltage oil cavity, offers the oil outlet that is communicated with the low pressure oil pocket on the described open end cap.
Offer curve bath respectively on two end faces of described rotary spool.
Offer shallow slot between the adjacent valve core oil hole on the described rotary spool.
Compared with prior art, advantage of the present utility model just is: (1) rotary type fluid-distributing valve of the present utility model have simple and compact for structure, volume is little, reliability is high, Control Parameter is simple, can realize advantages such as compound action, rotate by a motor driving spool, can finish ordered control to the flow direction of n oil hydraulic circuit, thereby on mechanical structure, just guaranteed the motion relativity of each power unit, improve the reliability of hydraulic system greatly, and reduced the control complexity of system.(2) the utility model carries out structural related with the motion of control motor the 2n bar hydraulic tube of n oil hydraulic circuit, thereby make in control motor rotating process, both orderly break-makes of may command n oil hydraulic circuit, can control the orderly to-and-fro motion of a plurality of power units quickly and accurately again, thereby have the double action of solenoid valve and selector valve.(3) owing to the rotary core wheel of employing is isolated the high and low pressure oil pocket, and the low pressure oil pocket is arranged on a side of open end cap, thereby thoroughly solves the leakage problem of rotating fluid distributing valve, make this device have very strong practicability and portability.
Description of drawings
Fig. 1 is that master of the present utility model looks cross-sectional schematic;
Fig. 2 is a perspective view of the present utility model;
Fig. 3 is the structural representation of valve body in the utility model;
Fig. 4 is the structural representation of rotary spool in the utility model.
Marginal data
1, first deep groove ball bearing 2, closed end cap
3, first screw 4, valve body
5, open end cap 6, second screw
7, second deep groove ball bearing 8, flat key
9, electric machine support 10, drive motor
11, coupling 12, rotary spool
13,0 RunddichtringO 14, valve body oilhole
15, spool oilhole 16, shallow slot
17, curve bath 18, enclosed cavity
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, rotary type fluid-distributing valve of the present utility model, it comprises valve body 4, rotary spool 12, drive motor 10, closed end cap 2 and open end cap 5, the two ends that closed end cap 2 and open end cap 5 are connected to valve body 4 form enclosed cavity 18, rotary spool 12 1 ends that are installed in the enclosed cavity 18 link to each other with drive motor 10, closed end cap 2 and rotary spool 12 in the enclosed cavity 18, form high-voltage oil cavity between the valve body 4, open end cap 5 and rotary spool 12, form the low pressure oil pocket between the valve body 4, be not communicated with between high-voltage oil cavity and the low pressure oil pocket; The outer circumferential side of valve body 4 offers several valve body oilholes 14 that is used for connecting the power unit oil circuit, and the outer circumferential side of rotary spool 12 offers several spool oilholes 15, and valve body oilhole 14 is communicated with enclosed cavity 18 by spool oilhole 15.
Valve body 4, rotary spool 12 closed end caps 2 and open end cap 5 all adopt revolving parts, referring to Fig. 2 and shown in Figure 3, valve body 4 is as whole device main body part, and closed end cap 2 and open end cap 5 are fastenedly connected with valve body 4 by first screw 3 and second screw 6 respectively.Rotary spool 12 is installed in closed end cap 2 and the open end cap 5 by first deep groove ball bearing 1 and second deep groove ball bearing 7, and can be around self geometrical axis rotation.Be rotated motive sealing by o RunddichtringO 13 between the drive shaft section of rotary spool 12 and the open end cap 5.Drive motor 10 is installed on the open end cap 5 by electric machine support 9, and is connected with the axle of rotary spool 12 with the output shaft of flat key 8 with drive motor 10 by coupling 11.Offer n valve body oilhole 14 that is used for connecting the power unit oil circuit on the cylindrical side of valve body 4 outer circumferential sides, wherein n is an even number, and two the valve body oilholes 14 that are positioned on valve body 4 diametric(al)s constitute one group.Rotary spool 12 is installed in the inside of valve body 4, and with valve body 4 between cooperate by the cylndrical surface.When rotary spool 12 was in different rotary positions, the valve body oilhole 14 of diverse location will be respectively and high-voltage oil cavity or the conducting of low pressure oil pocket on valve body 4 cylindrical sides.
Referring to illustrated in figures 1 and 2, the end face of the end face of closed end cap 2 and valve body 4 is fitted, and is fastenedly connected by first screw 3.Closed end cap 2 is provided with an oil inlet hole, can link to each other with gear pump, the contour pressure oil feeder of accumulator, the hydraulic oil that has certain pressure in order to input, in addition there is not the passage that other links to each other with the external world, therefore even when its high-voltage oil cavity inside with valve body 4, rotary spool 12 parts composition contains high pressure oil, also can not cause leakage to external world.The opposite side end face of the end face of open end cap 5 and valve body 4 is fitted, and is fastenedly connected by second screw 6.There is an oil outlet in the outside of open end cap 5, can be connected with fuel tank.In addition, the turning axle place of open end cap 5 has a circular port, stretches out in order to the live axle with rotary spool 12.Because the oil pocket that open end cap 5, rotary spool 12 and valve body 4 are formed is the low pressure oil pocket, promptly its inner oil pressure is very low, so the sealing between open end cap 5 and the rotary spool 12 can directly be adopted without the lip-type packing oil sealing.RunddichtringO 13 sealings.
Referring to Fig. 2 and shown in Figure 4, have n spool oilhole 15 on the cylindrical side of rotary spool 12 equably, wherein n is an even number, per two spool oilholes 15 that are positioned on rotary spool 12 diametric(al)s constitute one group.When rotating to correct position, these spool oilholes 15 can communicate with the valve body oilhole 14 on valve body 4 cylindrical sides.In order to guarantee that each oilhole has more ON time, offer shallow slot 16 between the adjacent valve core oil hole 15 on the rotary spool 12.On the both sides end face of rotary spool 12 main bodys, be processed with one section curve bath 17 respectively, this curve bath 17 is communicated with the n/2 on this part cylindrical side adjacent oilhole, thereby accelerates the turnover speed oil.
Working principle is introduced: a certain moment, the high-pressure and hydraulic oil that oilhole from closed end cap 2 enters flows into high-voltage oil cavity, and be full of the curve bath 17 on right side on the rotary spool 12, further flow into n/2 the valve body oilhole 14 that communicates with curve bath 17, this moment, this n/2 oilhole 14 communicated with adjacent n/2 spool oilhole 15 on the valve body 4, thereby with the oily derivation of high-pressure and hydraulic rotary type fluid-distributing valve; Remaining n/2 spool oilhole 15 communicates with n/2 valve body oilhole 14 of remainder on the rotary spool 12 simultaneously on the valve body 4, extraneous low-pressure hydraulic oil flows in the curve bath 17 in rotary spool 12 left sides by spool oilhole 15 and valve body oilhole 14, and be full of the low pressure oil pocket, flow out rotary distributing valve by the oilhole on the open end cap 5, form a complete oil circuit; When rotary spool 12 rotates under the driving of drive motor 10, curve bath 17 in right side and left side is in diverse location respectively on it, but still communicate with high-voltage oil cavity and low pressure oil pocket respectively separately, thereby make adjacent n/2 spool oilhole 15 of the diverse location on the valve body 4 communicate with high-voltage oil cavity/low pressure oil pocket respectively; Shallow slot 16 on the rotary spool 12 communicates adjacent n/2 the valve body oilhole 14 identical with curve bath 17, thereby makes that the time of each spool oilhole 15 conducting increases to rotating the shallow slot required time of 16 length on the valve body 4.
Claims (8)
1, a kind of rotary type fluid-distributing valve, it is characterized in that: it comprises valve body (4), rotary spool (12), drive motor (10), closed end cap (2) and open end cap (5), the two ends that described closed end cap (2) and open end cap (5) are connected to valve body (4) form enclosed cavity (18), rotary spool (12) one ends that are installed in the enclosed cavity (18) link to each other with drive motor (10), closed end cap (2) and rotary spool (12) in the described enclosed cavity (18), valve body forms high-voltage oil cavity between (4), open end cap (5) and rotary spool (12), form the low pressure oil pocket between the valve body (4), be not communicated with between high-voltage oil cavity and the low pressure oil pocket; The outer circumferential side of described valve body (4) offers several valve body oilholes (14) that is used for connecting the power unit oil circuit, the outer circumferential side of rotary spool (12) offers several spool oilholes (15), and valve body oilhole (14) is communicated with enclosed cavity (18) by spool oilhole (15).
2, rotary type fluid-distributing valve according to claim 1 is characterized in that: the number of described valve body oilhole (14) is n, and wherein n is an even number, and per two valve body oilholes (14) that are positioned on valve body (4) diametric(al) constitute one group.
3, rotary type fluid-distributing valve according to claim 2 is characterized in that: the number of described spool oilhole (15) is n, and wherein n is an even number, and per two spool oilholes (15) that are positioned on rotary spool (12) diametric(al) constitute one group.
4, according to claim 1 or 2 or 3 described rotary type fluid-distributing valves, it is characterized in that: described closed end cap offers the oil inlet hole that links to each other with the high pressure oil supply arrangement on (2), described oil inlet hole is communicated with high-voltage oil cavity, and described open end cap offers the oil outlet that is communicated with the low pressure oil pocket on (5).
5, according to claim 1 or 2 or 3 described rotary type fluid-distributing valves, it is characterized in that: offer curve bath (17) respectively on two end faces of described rotary spool (12).
6, rotary type fluid-distributing valve according to claim 4 is characterized in that: offer curve bath (17) respectively on two end faces of described rotary spool (12).
7, according to claim 1 or 2 or 3 described rotary type fluid-distributing valves, it is characterized in that: described rotary spool (12) is gone up between the adjacent valve core oil hole (15) and is offered shallow slot (16).
8, rotary type fluid-distributing valve according to claim 6 is characterized in that: described rotary spool (12) is gone up between the adjacent valve core oil hole (15) and is offered shallow slot (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200538461U CN201255252Y (en) | 2008-07-28 | 2008-07-28 | Rotary type fluid-distributing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200538461U CN201255252Y (en) | 2008-07-28 | 2008-07-28 | Rotary type fluid-distributing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255252Y true CN201255252Y (en) | 2009-06-10 |
Family
ID=40738570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200538461U Expired - Lifetime CN201255252Y (en) | 2008-07-28 | 2008-07-28 | Rotary type fluid-distributing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255252Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324279B (en) * | 2008-07-28 | 2010-10-06 | 中国人民解放军国防科学技术大学 | Rotary type fluid-distributing valve |
| CN104452631A (en) * | 2014-10-23 | 2015-03-25 | 常德中联重科液压有限公司 | Fluid distribution mechanism and engineering machine |
| CN104674742A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotating joint, sweeping plate and road cleaning vehicle |
| CN104674732A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotating joint, sweeping disc and road cleaning vehicle |
| CN107202190A (en) * | 2017-06-15 | 2017-09-26 | 广东机电职业技术学院 | Rotation flow automatic control device |
| CN110836208A (en) * | 2019-11-15 | 2020-02-25 | 邵延荣 | Unloading stop valve |
-
2008
- 2008-07-28 CN CNU2008200538461U patent/CN201255252Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324279B (en) * | 2008-07-28 | 2010-10-06 | 中国人民解放军国防科学技术大学 | Rotary type fluid-distributing valve |
| CN104674742A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotating joint, sweeping plate and road cleaning vehicle |
| CN104674732A (en) * | 2013-11-28 | 2015-06-03 | 长沙中联重科环卫机械有限公司 | Rotating joint, sweeping disc and road cleaning vehicle |
| CN104674732B (en) * | 2013-11-28 | 2017-11-24 | 长沙中联重科环境产业有限公司 | Swivel joint, sweep disk and road cleaning vehicle |
| CN104674742B (en) * | 2013-11-28 | 2018-01-23 | 长沙中联重科环境产业有限公司 | Swivel joint, sweep disk and road cleaning vehicle |
| CN104452631A (en) * | 2014-10-23 | 2015-03-25 | 常德中联重科液压有限公司 | Fluid distribution mechanism and engineering machine |
| CN104452631B (en) * | 2014-10-23 | 2016-03-23 | 常德中联重科液压有限公司 | fluid dispensing mechanism and engineering machinery |
| CN107202190A (en) * | 2017-06-15 | 2017-09-26 | 广东机电职业技术学院 | Rotation flow automatic control device |
| CN107202190B (en) * | 2017-06-15 | 2023-03-14 | 广东机电职业技术学院 | Rotary type flow automatic control device |
| CN110836208A (en) * | 2019-11-15 | 2020-02-25 | 邵延荣 | Unloading stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201255252Y (en) | Rotary type fluid-distributing valve | |
| CN101324279B (en) | Rotary type fluid-distributing valve | |
| CN105715606B (en) | A kind of combined type digital servo actuator | |
| CN103851225A (en) | Rotary multi-way reversing valve | |
| CN103899791B (en) | A kind of alternating current servo motor direct drives formula off-load proportional flow rotary valve | |
| CN103075385A (en) | Electric servo oil cylinder | |
| CN105402188A (en) | Servo controllable high-speed rotating shunting reversing valve | |
| CN201037377Y (en) | Horizontal positioning drilling machine valve control interflow speeding up hydraulic system | |
| CN201236969Y (en) | Throttling and unloading composite valve | |
| CN101332868B (en) | Bionic underwater thruster of beating fin driven by hydraulic | |
| CN101482088B (en) | Flow distributor of axial plunger variable hydraulic motor | |
| CN103174490B (en) | Hydraulic pressure variable valve device based on rotor control | |
| CN104421149A (en) | Variable flow hydraulic machine | |
| CN102588369A (en) | Numerical control hydraulic control unit | |
| CN202418077U (en) | Motor-driven servo valve | |
| CN204493846U (en) | A kind of compact type valve driving machine structure | |
| US9027338B2 (en) | Fluid pressure pump motor | |
| CN205260913U (en) | Guide's valve that commutates | |
| CN104676079A (en) | Compact valve driving mechanism | |
| CN201339536Y (en) | Current distributor for axial plunger variable hydraulic motor | |
| CN106050347B (en) | Crank connecting link drives full variable valve system | |
| CN109458383B (en) | Heavy-load combined stepping actuating mechanism | |
| CN202451489U (en) | Numerically controlled hydraulic control device | |
| CN202449055U (en) | Full-hydraulic steering control system and rough-terrain crane | |
| CN205154791U (en) | Hydraulic pressure rotary power power generation facility's hydraulic pressure fuel tap structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090610 Effective date of abandoning: 20080728 |