CN103352887A - Single-vane water pressure self-servo rotary valve - Google Patents
Single-vane water pressure self-servo rotary valve Download PDFInfo
- Publication number
- CN103352887A CN103352887A CN2013103019132A CN201310301913A CN103352887A CN 103352887 A CN103352887 A CN 103352887A CN 2013103019132 A CN2013103019132 A CN 2013103019132A CN 201310301913 A CN201310301913 A CN 201310301913A CN 103352887 A CN103352887 A CN 103352887A
- Authority
- CN
- China
- Prior art keywords
- valve body
- nominal size
- pressure
- end cap
- pintle
- 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.)
- Granted
Links
Images
Landscapes
- Hydraulic Motors (AREA)
Abstract
A single-vane water pressure self-servo rotary valve comprises a flow-distribution shaft (1), a valve body (3) and a motor (13), wherein a vane (4), a fixing baffle (23) and a valve element (6) are arranged inside the valve body (3), a left stepped shaft of the flow-distribution shaft (1) penetrates through a left end cover of the valve body (3) and extends out of the valve body (3), the valve element (6) is tightly attached to a flow-distribution end of the flow-distribution shaft (1), the valve element (6) and the flow-distribution shaft (1) carry out flow distribution, a right stepped shaft of the valve element (6) penetrates through a central hole of a right end cover (11) of the valve body (3) and is connected with an output shaft of the motor (13), the vane (4) and the fixing baffle (23) are located between a shaft shoulder and the flow-distribution end of the flow-distribution shaft (1), the vane (4) is arranged at the right shaft section of the flow-distribution shaft (1), the fixing baffle (23) is arranged on a clamping groove (44) of the valve body (3), and the vane (4) and the fixing baffle (23) are symmetrically arranged with the right shaft section of the flow-distribution shaft (1) as the center. The single-vane water pressure self-servo rotary valve has the advantages of being small in radial dimension, large in deflection angle of a rotation shaft, good in dynamic property, simple in structure, and good in sealing performance.
Description
Technical field
The present invention relates to the Hydraulic Drive Technology field, a kind of single blade hydraulic pressure is from servo rotating valve specifically.
Background technique
Hydraulic Drive Technology is directly with a natural fresh water or seawater proxy mineral oil Novel transmission technology as the hydraulic work system medium.Water meets the requirement of environmental protection and sustainable development as the hydraulic work system medium, and at food-processing industry, aqueous medium does not pollute the environment and food, and under the scene of a fire and hot environment, because the incombustibility of aqueous medium, the hydraulic pressure transmission has unrivaled advantage.In recent years, Hydraulic Drive Technology has been subjected to abroad that the extensive attention of each developed country becomes one of the study hotspot in international Fluid-transmission and control technique field.
At present, the scholar Jiang Lin of Wuhan University Of Technology etc. has designed " a kind of double-leaf rotary valve electrohydraulic control " (application number is CN201220660936.3), this servovalve with hydraulic oil as working medium, adopt double blade structure, spool force in radial and axial force all each self balancing, servo blind area is little and the characteristics that are easy to control, element structure is complicated, oil duct is difficult to process, the running shaft deflection angle is little, the very high problems such as degree of adaptability of assembling needs but exist, and this valve because structural defective, can not be directly used in hydraulic pressure system.
Because the requirement of particular surroundings and resource, drive system does not allow to use the medium of oil and other non-water in actual applications, thereby water hydraulics obtains paying attention to and development, but Technique for Water Hydraulic Components generally all exists easy burn into to leak the problems such as serious.
Summary of the invention
The purpose of this invention is to provide that a kind of pintle deflection angle is large, dynamic property good, single blade hydraulic pressure of simple in structure, good airproof performance is from servo rotating valve.
A kind of single blade hydraulic pressure of the present invention is from servo rotating valve, comprise pintle, valve body and motor, establish blade, fixed dam and spool in the described valve body, the left end cap that the left multidiameter shaft of described pintle passes valve body stretches out outside the valve body, described spool is close to the flow end of pintle, spool and pintle valve plate distribution; The right end cap center hole that the right side multidiameter shaft of spool passes valve body links to each other with the output shaft of motor; Described blade and fixed dam are between the shaft shoulder and flow end of pintle, and blade is arranged on the right axis section of pintle, and described fixed dam is arranged on the draw-in groove of valve body, and blade and fixed dam are centered by the right axis section of pintle and are symmetrical arranged.
Described spool comprises annular solid and the multidiameter shaft of coaxial setting, offers high pressure circular groove, low pressure circular groove and three seal grooves on the described annular solid, from left to right is disposed with left seal ring, middle seal ring and right seal ring in three seal grooves; Be provided with the low pressure circular groove between left seal ring and the middle seal ring, be provided with the low pressure radial passage in the low pressure circular groove; Be provided with the high pressure circular groove between middle seal ring and the right seal ring, be provided with cross high-pressure radial passage in the high pressure circular groove; The left side of described annular solid is provided with high pressure flow road and low pressure flow road, the distribution that is centrosymmetric of high pressure flow road and low pressure flow road, and described high pressure flow road and cross high-pressure radial passage are connected, and described low pressure flow road and low pressure radial passage are connected.
Described pintle comprises left multidiameter shaft, the shaft shoulder, right axis section and flow end, and shaft shoulder outer surface is provided with a seal groove, establishes seal ring in the seal groove; The external diameter nominal size of the shaft shoulder and the flow end all nominal size with valve block internal diameter is identical, and the radially nominal size sum of the external diameter nominal size of right axis section and blade equals the internal diameter nominal size of valve body; The right side of flow end is provided with left side arc tank and the right side arc tank that axisymmetric arranges, convex portion between left side arc tank and the right side arc tank is shoulder, and the high pressure flow road water intake on described shoulder and the spool, the shape of low pressure flow road water outlet are identical; Described left side arc tank and arc tank tail end, right side are arranged with left window and right window.
Described fixed dam extend radially out end for arc surface, half of the subsequent corrosion nominal size of arc surface and the external diameter nominal size of the right axis section of pintle is identical, seal groove is offered at the fixed dam top, establishes the fixed dam Stamping Steel Ribbon in the seal groove; Blade extend radially out end for arc surface, half of the subsequent corrosion nominal size of arc surface and the internal diameter nominal size of valve body is identical; Described vane tip is offered seal groove, establishes the runner sealing bar in the seal groove.
Described valve body top is provided with high-pressure channel along axial direction, and the water intake of described high-pressure channel is connected with the high-pressure water inlet pipe joint of right end cap, and the water outlet of described high-pressure channel is connected with the high pressure circular groove.
Described valve body lower portion is provided with low-pressure channel along axial direction, and the water intake of described low-pressure channel is connected with the low pressure circular groove, and the water outlet of described low-pressure channel is connected with the low pressure delivery pipe joint of right end cap.
Described valve body lower portion radially is provided with draw-in groove, and described draw-in groove length nominal size, width nominal size all length nominal size, the width nominal size with fixed dam are identical.
The output shaft of described left end cap 2, pintle 1, spool 6, right end cap 11, motor 13 is positioned at same axis.
The external diameter nominal size of described left end cap is identical with the external diameter nominal size of valve body; The pintle seal groove, left end cap seal groove and the left seal groove of valve body that are positioned on the same axis are from left to right arranged in the left end cap successively, and correspondence is provided with seal ring in pintle seal groove, left end cap seal groove and the left seal groove of valve body.
The external diameter nominal size of described right end cap is identical with the external diameter nominal size of valve body; The spool multidiameter shaft seal groove, right end cap seal groove, the right seal groove of valve body that are positioned on the same axis are arranged in the right end cap from right to left successively, and correspondence is provided with seal ring in spool multidiameter shaft seal groove, right end cap seal groove, the right seal groove of valve body.
The present invention is achieved in that high pressure water enters the high-pressure channel of valve body through the high-pressure channel of right end cap by the high-pressure water inlet pipe joint, enter the high pressure circular groove of spool through the outlet of valve body high-pressure channel, then the cross high-pressure radial passage through spool enters high pressure flow road again.
When spool is rotated counterclockwise with respect to pintle, high pressure water enters left active chamber by the window of corresponding arc tank on the flow end of high pressure flow road and pintle successively, the promotion blade turns clockwise, blade drives pintle and follows valve core rotation, and the low-pressure water of right active chamber enters the low pressure flow road of spool through the window of corresponding arc tank on the flow end of pintle.
When spool turns clockwise with respect to pintle, high pressure water enters right active chamber by the active chamber water channel of corresponding arc tank on the flow end of high pressure flow road and pintle successively, the promotion blade is rotated counterclockwise, blade drives pintle with valve core rotation, and the low-pressure water of left active chamber enters the low pressure flow road of spool by the window of corresponding arc tank on the flow end of pintle.
Low-pressure water in the low pressure flow road enters the low pressure circular groove, enters the low-pressure channel of right end cap through the valve body low-pressure channel again, then refluxes through the low pressure delivery pipe joint.
From servo rotating valve compared with the prior art the single blade hydraulic pressure of the present invention have following good effect:
1, the present invention adopts single blade, and blade and fixed dam are arranged symmetrically in valve body, but the blade deflection angle is large, thereby the deflection angle of pintle is larger;
2, spool of the present invention and pintle are in process in relative rotation, and the opening degree between high pressure flow road or low pressure flow road and the shoulder and the rotation of spool are linear, can obtain linear flow gain, thus motion steadily, dynamic characteristic is good; Pintle reduces technology difficulty and assembling difficulty, and the slit of having reduced the generation in the assembly process makes sealability better;
3, because primary component is easy to processing and assembling, so the present invention is simple in structure, be easy to safeguard;
4, left end cap of the present invention, valve body and right end cap have all been installed seal ring in assembling, increased the sealing of end face, the pintle in the valve body, and blade and spool have been installed corresponding seal ring, have reduced the leakage in the motion, good seal performance.
5, left bearing, right bearing are installed in respectively in left end cap and the right end cap, have reduced the leakage that produces at bearing face.
Description of drawings
Fig. 1 is that the single blade hydraulic pressure of the present invention is from the structural representation of servo rotating valve;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the B-B generalized section of Fig. 1;
Fig. 4 is the structural representation of pintle;
Fig. 5 is the C-C generalized section of Fig. 4;
Fig. 6 is the right elevation of Fig. 4;
Fig. 7 is the left view of fixed dam;
Fig. 8 is the left view of blade;
Fig. 9 is the structural representation of valve body;
Figure 10 is the D-D generalized section of Fig. 9;
Figure 11 is the structural representation of spool;
Figure 12 is the left view of Figure 11;
Figure 13 is the structural representation of left end cap;
Figure 14 is the E-E generalized section of Figure 13;
Figure 15 is the structural representation of right end cap;
Figure 16 is the F-F generalized section of Figure 15.
Among the figure, 1 is pintle, and 2 is left end cap, 3 is valve body, and 4 is blade, and 5 is the runner sealing bar, 6 is spool, and 7 is the low pressure circular groove, and 8 is high pressure flow road, 9 is the high pressure circular groove, and 10 is high-pressure channel, and 11 is right end cap, 12 is the high-pressure water inlet pipe joint, and 13 is motor, and 14 is cradling piece, 15 is flange plate, and 16 is supporting plate, and 17 is the low pressure delivery pipe joint, 18 is right bearing, and 19 is cross high-pressure radial passage, and 20 is low-pressure channel, 21 is the low pressure radial passage, and 22 is low pressure flow road, and 23 is fixed dam, 24 is the fixed dam Stamping Steel Ribbon, and 25 is left bearing, and 26-28 is seal ring, 29 is right side arc tank, 30-32 is seal ring, and 33 is right seal ring, and 34 is middle seal ring, 35 is left seal ring, 36 is left side arc tank, and 37 is seal ring, and 38 is seal groove, 39 is right window, 40 is left window, and 41 is shoulder, and 42-43 is seal groove, 44 is draw-in groove, 45 is seal groove, and 46 is the left end cap seal groove, and 47 is left shaft holder, 48 is the left seal groove of valve body, 49 is the pintle seal groove, and 50 is the right seal groove of valve body, and 51 is the right end cap seal groove, 52 is spool multidiameter shaft seal groove, and 53 is the right bearing seat.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further specified: shown in Fig. 1-16, a kind of single blade hydraulic pressure comprises pintle 1, valve body 3, fixed dam 23, blade 4, spool 6, left end cap 2, right end cap 11 and motor 13 from servo rotating valve;
As depicted in figs. 1 and 2, the left end of valve body 3 is equipped with left end cap 2, left bearing 25 is installed in the left shaft holder 47 of left end cap 2, the center hole that the multidiameter shaft on pintle 1 left side passes left bearing 25 and left end cap 2 stretches out outside the valve body 3, spool 6 is close to the flow end of pintle 1, and spool 6 and pintle 1 are valve plate distribution; Spool 6 right-hand members are fixedly connected with the output shaft of motor 13, and motor 13 is fixedly connected by supporting plate 16 and flange plate 15, and flange plate 15 is fixedly connected by cradling piece 14 and right end cap 11;
The right-hand member of valve body 3 is equipped with right end cap 11, and right bearing 18 is installed in the right bearing seat 53 of right end cap 11, and the center hole that the multidiameter shaft on spool 6 shaft shoulder right sides passes right bearing 18 and right end cap 11 is installed in the valve body 3;
A fixed dam 23 is housed in the draw-in groove 44 of valve body 3, and the right flank of pintle 1 shaft shoulder is close in the left side of fixed dam 23, and pintle 1 flow end left surface is close on the right side of fixed dam 23; Right axis section at pintle 1 is installed blade 4, and the right flank of pintle 1 shaft shoulder is close in the left side of blade 4, and the left surface of the flow end of pintle 1 is close on the right side of blade 4, and blade 4 is arranged symmetrically with fixed dam 23;
The top of valve body 3 is provided with high-pressure channel 10 along axial direction, and the bottom of valve body 3 is provided with low-pressure channel 20 along axial direction, and the import of the high-pressure channel 10 of valve body 3 communicates with the high pressure intake of right end cap 11; The place, high pressure intake of right end cap 11 is equipped with high-pressure water inlet pipe joint 12, and the high-pressure channel 10 of valve body 3 communicates with the high pressure circular groove 9 of spool 6 by the cross high-pressure radial passage 19 of spool 6; The low pressure delivery mouth place of right end cap 11 is equipped with low pressure delivery pipe joint 17, and the low-pressure channel 20 of valve body 3 communicates with the low pressure circular groove 7 of spool 6 by the radially low-pressure channel 20 of spool 6;
The output shaft of left end cap 2, pintle 1, spool 6, right end cap 11 and motor 13 is positioned at same axis.
As shown in Figure 7, fixed dam 23 extend radially out end for arc surface, half of the external diameter nominal size of the subsequent corrosion nominal size of arc surface and pintle 1 right axis section is identical, fixed dam Stamping Steel Ribbon 24 is installed in the seal groove 42 of fixed dam 23; As shown in Figure 8, blade 4 extend radially out end for arc surface, half of the subsequent corrosion nominal size of arc surface and the internal diameter nominal size of valve body 3 is identical.Runner sealing bar 5 is installed in the seal groove 43 of blade 4.
As shown in Figure 4, pintle 1 comprises left multidiameter shaft, the shaft shoulder, right axis section and flow end, and shaft shoulder outer surface is provided with a seal groove 38, establishes seal ring 28 in the seal groove 38; The external diameter nominal size of the shaft shoulder and the flow end all nominal size with valve body 3 internal diameters is identical, and the radially nominal size sum of the external diameter nominal size of right axis section and blade 4 equals the internal diameter nominal size of valve body 3; Such as Fig. 5, shown in Figure 6, the right side of flow end is provided with left side arc tank 36 and the right side arc tank 29 that axisymmetric arranges, convex portion between left side arc tank 36 and the right side arc tank 29 is shoulder 41, and high pressure flow road 8 water intakes on described shoulder 41 and the spool 6, the shape of low pressure flow road 22 water outlets are identical; Described left side arc tank 36 and arc tank 29 tail ends, right side are arranged with left window 40 and right window 39.
Such as Figure 11, shown in Figure 12, spool 6 is comprised of multidiameter shaft and annular solid, annular solid is provided with in high pressure circular groove 9, low pressure circular groove 7 and 45, three seal grooves 45 of three seal grooves left seal ring 35, middle seal ring 34 and right seal ring 33 from left to right is installed successively; Low pressure circular groove 7 and high pressure circular groove 9 from left to right successively between seal groove 38, are provided with cross high-pressure radial passage 19 in high pressure circular groove 9, the external diameter nominal size of annular solid is identical with the internal diameter nominal size of valve body 3;
There are a high pressure flow road 8 and a low pressure flow road 22 in the left side of spool 6, the distribution that is centrosymmetric of high pressure flow road 8 and low pressure flow road 22, high pressure flow road 8 communicates with cross high-pressure radial passage 19, and low pressure flow road 22 communicates with low pressure radial passage 21.
Such as Figure 13, shown in Figure 14, the external diameter nominal size of left end cap 2 is identical with the external diameter nominal size of valve body 3; The left seal groove 48 of pintle seal groove 49, left end cap seal groove 46 and valve body on same axis is from left to right arranged in the left end cap 2 successively, seal ring 36 is installed in the pintle seal groove 49, seal ring 26 is installed in the left end cap seal groove 46, and seal ring 27 is installed in the left seal groove 48 of valve body.
Such as Figure 15, shown in Figure 16, the external diameter nominal size of right end cap 11 is identical with the external diameter nominal size of valve body 3; The right seal groove 50 of valve body, right end cap seal groove 51 and spool multidiameter shaft seal groove 52 on same axis are from left to right arranged in the right end cap 11 successively, seal ring 32 is installed in the right seal groove 50 of valve body, seal ring 30 is installed in the right end cap seal groove 51, and seal ring 31 is installed in the spool multidiameter shaft seal groove 52.
Claims (9)
1. single blade hydraulic pressure is from servo rotating valve, comprise pintle ⑴, valve body ⑶ and motor ⒀, it is characterized in that: establish blade ⑷, fixed dam (23) and spool ⑹ in the described valve body ⑶, the left end cap ⑵ that the left multidiameter shaft of described pintle ⑴ passes valve body ⑶ stretches out outside the valve body ⑶, described spool ⑹ is close to the flow end of pintle ⑴, spool ⑹ and pintle ⑴ valve plate distribution; The right end cap ⑾ center hole that the right side multidiameter shaft of spool ⑹ passes valve body ⑶ links to each other with the output shaft of motor ⒀; Described blade ⑷ and fixed dam (23) are between the shaft shoulder and flow end of pintle ⑴, blade ⑷ is arranged on the right axis section of pintle ⑴, described fixed dam (23) is arranged on the draw-in groove (44) of valve body ⑶, and blade ⑷ and fixed dam (23) are centered by the right axis section of pintle ⑴ and are symmetrical arranged.
2. single blade hydraulic pressure as claimed in claim 1 is from servo rotating valve, it is characterized in that: described spool ⑹ comprises annular solid and the multidiameter shaft of coaxial setting, offer high pressure circular groove ⑼, low pressure circular groove ⑺ and three seal grooves (45) on the described annular solid, three seal grooves (45) from left to right are disposed with left seal ring (35), middle seal ring (34) and right seal ring (33); Be provided with low pressure circular groove ⑺ between left seal ring (35) and the middle seal ring (34), be provided with low pressure radial passage (21) in the low pressure circular groove ⑺; Be provided with high pressure circular groove ⑼ between middle seal ring (34) and the right seal ring (33), be provided with cross high-pressure radial passage ⒆ in the high pressure circular groove ⑼; The left side of described annular solid is provided with high pressure flow road ⑻ and low pressure flow road (22), the distribution that is centrosymmetric of high pressure flow road ⑻ and low pressure flow road (22), described high pressure flow road ⑻ and cross high-pressure radial passage ⒆ are connected, and described low pressure flow road (22) and low pressure radial passage (21) are connected.
3. single blade hydraulic pressure as claimed in claim 2 is from servo rotating valve, it is characterized in that: described pintle ⑴ comprises left multidiameter shaft, the shaft shoulder, right axis section and flow end, shaft shoulder outer surface is provided with a seal groove (38), establishes seal ring (28) in the seal groove (38); The external diameter nominal size of the shaft shoulder and the flow end all nominal size with valve body ⑶ internal diameter is identical, and the radially nominal size sum of the external diameter nominal size of right axis section and blade ⑷ equals the internal diameter nominal size of valve body ⑶; The right side of flow end is provided with left side arc tank (36) and the right side arc tank (29) that axisymmetric arranges, convex portion between left side arc tank (36) and the right side arc tank (29) is shoulder (41), and the high pressure flow road ⑻ water intake on described shoulder (41) and the spool ⑹, the shape of low pressure flow road (22) water outlet are identical; Described left side arc tank (36) and right side arc tank (29) tail end are arranged with left window (40) and right window (39).
4. single blade hydraulic pressure as claimed in claim 1 is from servo rotating valve, it is characterized in that: the end that extends radially out of described fixed dam (23) is arc surface, half of the subsequent corrosion nominal size of arc surface and the external diameter nominal size of the right axis section of pintle ⑴ is identical, seal groove (42) is offered at fixed dam (23) top, establishes fixed dam Stamping Steel Ribbon (24) in the seal groove (42); Blade ⑷ extends radially out end for arc surface, and half of the subsequent corrosion nominal size of arc surface and the internal diameter nominal size of valve body ⑶ is identical; Described blade ⑷ offers seal groove (43) in the top, establishes runner sealing bar ⑸ in the seal groove (43).
5. single blade hydraulic pressure as claimed in claim 2 is from servo rotating valve, it is characterized in that: described valve body ⑶ top is provided with high-pressure channel ⑽ along axial direction, the water intake of described high-pressure channel ⑽ is connected with the high-pressure water inlet pipe joint ⑿ of right end cap ⑾, and the water outlet of described high-pressure channel ⑽ is connected with high pressure circular groove ⑼.
6. single blade hydraulic pressure as claimed in claim 2 is from servo rotating valve, it is characterized in that: described valve body ⑶ bottom is provided with low-pressure channel ⒇ along axial direction, the water intake of described low-pressure channel ⒇ is connected with low pressure circular groove ⑺, and the water outlet of described low-pressure channel ⒇ is connected with the low pressure delivery pipe joint ⒄ of right end cap ⑾.
7. single blade hydraulic pressure as claimed in claim 1 is from servo rotating valve, it is characterized in that: described valve body ⑶ bottom radially is provided with draw-in groove (44), and described draw-in groove (44) length nominal size, width nominal size all length nominal size, the width nominal size with fixed dam (23) are identical.
8. single blade hydraulic pressure as claimed in claim 1 is characterized in that from servo rotating valve: the external diameter nominal size of described left end cap ⑵ is identical with the external diameter nominal size of valve body ⑶; The pintle seal groove (49), left end cap seal groove (46) and the left seal groove of valve body (48) that are positioned on the same axis are from left to right arranged in the left end cap ⑵ successively, and pintle seal groove (49), left end cap seal groove (46) and the interior correspondence of the left seal groove of valve body (48) are provided with seal ring (37,26,27).
9. single blade hydraulic pressure as claimed in claim 1 is characterized in that from servo rotating valve: the external diameter nominal size of described right end cap ⑾ is identical with the external diameter nominal size of valve body ⑶; The spool multidiameter shaft seal groove (52), right end cap seal groove (51), the right seal groove of valve body (50) that are positioned on the same axis are arranged in the right end cap ⑾ from right to left successively, and spool multidiameter shaft seal groove (52), right end cap seal groove (51), the interior correspondence of the right seal groove of valve body (50) are provided with seal ring (31,30,32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301913.2A CN103352887B (en) | 2013-07-18 | 2013-07-18 | A kind of single vane water pressure self-servo rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301913.2A CN103352887B (en) | 2013-07-18 | 2013-07-18 | A kind of single vane water pressure self-servo rotary valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352887A true CN103352887A (en) | 2013-10-16 |
| CN103352887B CN103352887B (en) | 2015-08-19 |
Family
ID=49309289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310301913.2A Expired - Fee Related CN103352887B (en) | 2013-07-18 | 2013-07-18 | A kind of single vane water pressure self-servo rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103352887B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612258A (en) * | 2013-12-16 | 2014-03-05 | 武汉科技大学 | Robot joint with snakelike water pressure extinguishment function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795255A (en) * | 1972-01-10 | 1974-03-05 | Parker Hannifin Corp | Load control and holding valve |
| US3906980A (en) * | 1974-04-04 | 1975-09-23 | Deere & Co | Direction control valve embodying a sleeve-like pressure equalizing valve element |
| DE3317979C2 (en) * | 1983-05-18 | 1990-04-19 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
| EP0579241A1 (en) * | 1992-07-17 | 1994-01-19 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Rotary gate valve, in particular for power steering systems |
| CN202451488U (en) * | 2012-02-15 | 2012-09-26 | 武汉科技大学 | Electric liquid corner self-servo valve |
| CN102979777A (en) * | 2012-12-03 | 2013-03-20 | 武汉科技大学 | Rotary valve type large torque hydraulic corner self-servo valve |
| CN103115036A (en) * | 2013-03-01 | 2013-05-22 | 武汉科技大学 | Double-vane hydraulic self-servo oscillating cylinder |
| CN203009429U (en) * | 2012-12-03 | 2013-06-19 | 武汉科技大学 | Double-vane rotary-valve-type electro-hydraulic servo valve |
| CN203374547U (en) * | 2013-07-18 | 2014-01-01 | 武汉科技大学 | Single-blade hydraulic pressure self-servo swinging cylinder |
-
2013
- 2013-07-18 CN CN201310301913.2A patent/CN103352887B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795255A (en) * | 1972-01-10 | 1974-03-05 | Parker Hannifin Corp | Load control and holding valve |
| US3906980A (en) * | 1974-04-04 | 1975-09-23 | Deere & Co | Direction control valve embodying a sleeve-like pressure equalizing valve element |
| DE3317979C2 (en) * | 1983-05-18 | 1990-04-19 | Alfred Teves Gmbh, 6000 Frankfurt, De | |
| EP0579241A1 (en) * | 1992-07-17 | 1994-01-19 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Rotary gate valve, in particular for power steering systems |
| CN202451488U (en) * | 2012-02-15 | 2012-09-26 | 武汉科技大学 | Electric liquid corner self-servo valve |
| CN102979777A (en) * | 2012-12-03 | 2013-03-20 | 武汉科技大学 | Rotary valve type large torque hydraulic corner self-servo valve |
| CN203009429U (en) * | 2012-12-03 | 2013-06-19 | 武汉科技大学 | Double-vane rotary-valve-type electro-hydraulic servo valve |
| CN103115036A (en) * | 2013-03-01 | 2013-05-22 | 武汉科技大学 | Double-vane hydraulic self-servo oscillating cylinder |
| CN203374547U (en) * | 2013-07-18 | 2014-01-01 | 武汉科技大学 | Single-blade hydraulic pressure self-servo swinging cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612258A (en) * | 2013-12-16 | 2014-03-05 | 武汉科技大学 | Robot joint with snakelike water pressure extinguishment function |
| CN103612258B (en) * | 2013-12-16 | 2015-08-19 | 武汉科技大学 | A kind of joint of robot of snakelike hydraulic pressure fire extinguishing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103352887B (en) | 2015-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106737827B (en) | Corner self-servo passive flexible hydraulic robot joint | |
| CN102562701B (en) | Easily controlling hydraulic corner self-servo valve | |
| CN203374547U (en) | Single-blade hydraulic pressure self-servo swinging cylinder | |
| CN203009429U (en) | Double-vane rotary-valve-type electro-hydraulic servo valve | |
| CN103115036B (en) | Double-vane hydraulic self-servo oscillating cylinder | |
| CN102979777B (en) | Rotary valve type large torque hydraulic corner self-servo valve | |
| CN204419752U (en) | A kind of oil hydraulic cylinder based on Surface Texture hydrodynamic lubrication performance | |
| CN109099024A (en) | A kind of spiral swing hydranlic pressure jar | |
| CN104565425A (en) | C-shaped four-eccentric slurry pump control valve | |
| CN105257855A (en) | High-parameter multistage pressure reducing valve with porous valve core | |
| CN201034198Y (en) | Heavy caliber ball valve body cap sealing structure | |
| CN103352887B (en) | A kind of single vane water pressure self-servo rotary valve | |
| CN203081890U (en) | Swinging type self-servo hydraulic cylinder | |
| CN103047171B (en) | The global function throttling arrangement that floats | |
| CN202451488U (en) | Electric liquid corner self-servo valve | |
| JP5913150B2 (en) | Spherical valve | |
| CN205716139U (en) | A kind of movable spherical joint connection | |
| CN202746180U (en) | Sealing device for hydraulic test of double-shell tank and pump cover | |
| CN202418972U (en) | Gas guiding ring | |
| CN203189932U (en) | Sealing device used in rotating connector | |
| CN204226207U (en) | A kind of rotary-jet pump improving volumetric efficiency | |
| CN205858847U (en) | The cylinder static seal structure of quality of fit can be reduced | |
| CN205534807U (en) | Water hammer remover | |
| CN204459248U (en) | The eccentric slurry pump control valve of C shape four | |
| CN209905031U (en) | Rotary vane type steering engine capable of bearing high pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20131016 Assignee: Shenzhen Beiteer Electromechanical Co., Ltd. Assignor: Wuhan University of Science and Technology Contract record no.: 2016440020088 Denomination of invention: Single-vane water pressure self-servo rotary valve Granted publication date: 20150819 License type: Exclusive License Record date: 20160919 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |