CN203374547U - Single-blade hydraulic pressure self-servo swinging cylinder - Google Patents
Single-blade hydraulic pressure self-servo swinging cylinder Download PDFInfo
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- CN203374547U CN203374547U CN201320427670.2U CN201320427670U CN203374547U CN 203374547 U CN203374547 U CN 203374547U CN 201320427670 U CN201320427670 U CN 201320427670U CN 203374547 U CN203374547 U CN 203374547U
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Abstract
The utility model discloses a single-blade hydraulic pressure self-servo swinging cylinder which comprises a flow distribution shaft (1), a cylinder body (3) and a motor (13). A blade (4), a fixing baffle (23) and a valve element (6) are arranged in the cylinder body (3), a left stair shaft of the flow distribution shaft (1) passes through a left end cover (2) of the cylinder body (3) and stretches out of the cylinder body (3), the valve element (6) is closely attached to the flow distribution end of the flow distribution shaft (1), and the valve element (6) and the end face of the flow distribution shaft (1) carry out flow distribution; a right stair shaft of the valve element (6) passes through a central hole of the right end cover (11) of the cylinder body (3) and is connected with an output shaft of the motor (13); the blade (4) and the fixing baffle (23) are arranged between the shaft shoulder of the flow distribution shaft (1) and the flow distribution end of the flow distribution shaft (1), the blade (4) is arranged on the right shaft section of the flow distribution shaft (1), the fixing baffle (23) is arranged on a clamping groove (44) in the cylinder body (3), and the blade (4) and the fixing baffle (23) take the right shaft section of the flow distribution shaft (1) as the center to be symmetrically arranged. The single-blade hydraulic pressure self-servo swinging cylinder has the advantages of being small in radial dimension, large in rotation axis deflection angle, good in dynamic property, simple in structure, and good in sealing performance.
Description
Technical field
The utility model relates to the Hydraulic Drive Technology field, and a kind of single blade hydraulic pressure is from the servo oscillating cylinder specifically.
Background technique
Hydraulic Drive Technology is directly to using natural fresh water or the 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, at food-processing industry, aqueous medium does not pollute the environment and food, and under the scene of a fire and hot environment, due to the incombustibility of aqueous medium, the hydraulic pressure transmission has unrivaled advantage.In recent years, Hydraulic Drive Technology has been subject to the abroad extensive attention of each developed country to become 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 is usingd 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, but exist, element structure is complicated, oil duct is difficult to processing, the running shaft deflection angle is little, the very high problems such as degree of adaptability of assembling needs, and this valve due to structural defect, can not be directly used in hydraulic pressure system.
Due to 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 paid attention to and develop, but Technique for Water Hydraulic Components generally all exists easy burn into to leak the problems such as serious.
The model utility content
The purpose of this utility model 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 the servo oscillating cylinder.
A kind of single blade hydraulic pressure of the utility model is from the servo oscillating cylinder, comprise pintle, cylinder body and motor, establish blade, fixed dam and spool in described cylinder body, the left multidiameter shaft of described pintle stretches out outside cylinder body through the left end cap of cylinder body, described spool is close to the flow end of pintle, spool and pintle valve plate distribution; The right side multidiameter shaft of spool is connected with the output shaft of motor through the right end cap center hole of cylinder body; 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 cylinder body, and blade and fixed dam are symmetrical set centered by the right axis section of pintle.
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 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 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 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 seal groove; The external diameter nominal size of the shaft shoulder and flow end is all identical with the nominal size of cylinder diameter, 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 cylinder 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 right side arc tank is shoulder, and described shoulder is identical with the shape of high pressure flow road water intake on spool, low pressure flow road water outlet; 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 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 cylinder body is identical; Described vane tip is offered seal groove, establishes the runner sealing bar in seal groove.
Described cylinder 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 inferior part of the cylinder block 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 inferior part of the cylinder block radially is provided with draw-in groove, and described draw-in groove length nominal size, width nominal size are all identical with length nominal size, the width nominal size of fixed dam.
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 cylinder body; The pintle seal groove, left end cap seal groove and the left seal groove of cylinder body that are positioned on same axis are from left to right arranged in left end cap successively, and in pintle seal groove, left end cap seal groove and the left seal groove of cylinder body, correspondence is provided with seal ring.
The external diameter nominal size of described right end cap is identical with the external diameter nominal size of cylinder body; The spool multidiameter shaft seal groove, right end cap seal groove, the right seal groove of cylinder body that are positioned on same axis are arranged in right end cap from right to left successively, and in spool multidiameter shaft seal groove, right end cap seal groove, the right seal groove of cylinder body, correspondence is provided with seal ring.
The utility model is achieved in that high pressure water enters the high-pressure channel of cylinder 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 cylinder 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 low pressure flow road enters the low pressure circular groove, then enters the low-pressure channel of right end cap through the cylinder body low-pressure channel, then through the low pressure delivery pipe joint, refluxes.
From the servo oscillating cylinder compared with the prior art the utility model list blade hydraulic pressure, have following good effect:
1, the utility model adopts single blade, and blade and fixed dam are arranged symmetrically in cylinder body, but the blade deflection angle is large, thereby the deflection angle of pintle is larger;
2, spool of the present utility model and pintle are in process in relative rotation, and the opening degree between high pressure flow road or low pressure flow road and 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 gap of having reduced the generation in the assembly process, make sealability better;
3,, because primary component is easy to processing and assembling, therefore the utility model is simple in structure, be easy to safeguard;
4, left end cap of the present utility model, cylinder body and right end cap have all been installed seal ring in assembling, have increased the sealing of end face, the pintle in cylinder 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 arranged on respectively in left end cap and right end cap, have reduced the leakage produced at bearing face.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model list blade hydraulic pressure from the servo oscillating cylinder;
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 cylinder 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.
In figure, 1 is pintle, 2 is left end cap, 3 is cylinder body, 4 is blade, 5 is the runner sealing bar, 6 is spool, 7 is the low pressure circular groove, 8 is high pressure flow road, 9 is the high pressure circular groove, 10 is high-pressure channel, 11 is right end cap, 12 is the high-pressure water inlet pipe joint, 13 is motor, 14 is cradling piece, 15 is flange plate, 16 is supporting plate, 17 is the low pressure delivery pipe joint, 18 is right bearing, 19 is cross high-pressure radial passage, 20 is low-pressure channel, 21 is the low pressure radial passage, 22 is low pressure flow road, 23 is fixed dam, 24 is the fixed dam Stamping Steel Ribbon, 25 is left bearing, 26-28 is seal ring, 29 is right side arc tank, 30-32 is seal ring, 33 is right seal ring, 34 is middle seal ring, 35 is left seal ring, 36 is left side arc tank, 37 is seal ring, 38 is seal groove, 39 is right window, 40 is left window, 41 is shoulder, 42-43 is seal groove, 44 is draw-in groove, 45 is seal groove, 46 is the left end cap seal groove, 47 is left shaft holder, 48 is the left seal groove of cylinder body, 49 is the pintle seal groove, 50 is the right seal groove of cylinder body, 51 is the right end cap seal groove, 52 is spool multidiameter shaft seal groove, 53 is the right bearing seat.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described: as shown in Fig. 1-16, a kind of single blade hydraulic pressure, from the servo oscillating cylinder, comprises pintle 1, cylinder body 3, fixed dam 23, blade 4, spool 6, left end cap 2, right end cap 11 and motor 13;
As depicted in figs. 1 and 2, the left end of cylinder body 3 is equipped with left end cap 2, left bearing 25 is arranged in the left shaft holder 47 of left end cap 2, the multidiameter shaft on pintle 1 left side stretches out outside cylinder body 3 through the center hole of left bearing 25 and left end cap 2, 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 cylinder body 3 is equipped with right end cap 11, and right bearing 18 is arranged in the right bearing seat 53 of right end cap 11, and the multidiameter shaft on spool 6 shaft shoulder right sides is arranged in cylinder body 3 through the center hole of right bearing 18 and right end cap 11;
A fixed dam 23 is housed in the draw-in groove 44 of cylinder 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; Blade 4 is installed on the right axis section of pintle 1, 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 cylinder body 3 is provided with high-pressure channel 10 along axial direction, and the bottom of cylinder body 3 is provided with low-pressure channel 20 along axial direction, and the import of the high-pressure channel 10 of cylinder 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 cylinder 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 cylinder 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 arranged 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 cylinder body 3 is identical.Runner sealing bar 5 is arranged 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 seal groove 38; The external diameter nominal size of the shaft shoulder and flow end is all identical with the nominal size of cylinder body 3 internal diameters, 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 cylinder body 3; As shown in Figure 5, 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 right side arc tank 29 is shoulder 41, and described shoulder 41 is identical with the shape of high pressure flow road 8 water intakes on spool 6, low pressure flow road 22 water outlets; Described left side arc tank 36 and arc tank 29 tail ends, right side are arranged with left window 40 and right window 39.
As shown in Figure 11, 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, and the external diameter nominal size of annular solid is identical with the internal diameter nominal size of cylinder 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.
As shown in Figure 13, Figure 14, the external diameter nominal size of left end cap 2 is identical with the external diameter nominal size of cylinder body 3; The left seal groove 48 of pintle seal groove 49, left end cap seal groove 46 and cylinder body on same axis is from left to right arranged in left end cap 2 successively, seal ring 36 is arranged in pintle seal groove 49, seal ring 26 is arranged in left end cap seal groove 46, and seal ring 27 is arranged in the left seal groove 48 of cylinder body.
As shown in Figure 15, Figure 16, the external diameter nominal size of right end cap 11 is identical with the external diameter nominal size of cylinder body 3; The right seal groove 50 of cylinder body, right end cap seal groove 51 and spool multidiameter shaft seal groove 52 on same axis are from left to right arranged in right end cap 11 successively, seal ring 32 is arranged in the right seal groove 50 of cylinder body, seal ring 30 is arranged in right end cap seal groove 51, and seal ring 31 is arranged in spool multidiameter shaft seal groove 52.
Claims (9)
1. single blade hydraulic pressure is from the servo oscillating cylinder, comprise pintle (1), cylinder body (3) with motor (13), it is characterized in that: described cylinder body establish in (3) blade (4), fixed dam (23) and spool (6), described pintle left multidiameter shaft (1) through cylinder body left end cap (3) (2) stretch out cylinder body (3) outside, (6) described spool is close to pintle flow end (1), spool (6) with (1) valve plate distribution of pintle; Spool right side multidiameter shaft (6) through cylinder body right end cap (3) (11) center hole with motor output shaft (13), be connected; Described blade (4) and fixed dam (23) at pintle between the shaft shoulder and flow end (1), (4) blade is arranged on pintle right axis section (1), it is upper that described fixed dam (23) is arranged on cylinder body draw-in groove (44) (3), and (4) blade is symmetrical set centered by right axis section (1) by pintle with fixed dam (23).
2. single blade hydraulic pressure as claimed in claim 1 is from the servo oscillating cylinder, it is characterized in that: (6) described spool comprises annular solid and the multidiameter shaft of coaxial setting, on described annular solid, offer the high pressure circular groove (9), (7) with three seal grooves of low pressure circular groove (45), 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 the low pressure circular groove (7) between left seal ring (35) and middle seal ring (34), the low pressure circular groove is provided with low pressure radial passage (21) in (7); Be provided with the high pressure circular groove (9) between middle seal ring (34) and right seal ring (33), (19) the high pressure circular groove is provided with cross high-pressure radial passage in (9); The left side of described annular solid be provided with high pressure flow road (8) with low pressure flow road (22), high pressure flow road (8) with low pressure flow road (22) distribution that is centrosymmetric, (19) (8) described high pressure flow road be connected with cross high-pressure radial passage, 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 the servo oscillating cylinder, it is characterized in that: (1) described pintle 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 seal groove (38); All with cylinder body, (3) the nominal size of internal diameter is identical for the external diameter nominal size of the shaft shoulder and flow end, and the external diameter nominal size of right axis section and blade radially nominal size sum (4) equals cylinder body internal diameter nominal size (3); 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 right side arc tank (29) is shoulder (41), and the high pressure flow road that described shoulder (41) is (6) gone up with the spool (8) shape of water intake, low pressure flow road (22) water outlet is 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 the servo oscillating cylinder, it is characterized in that: the end that extends radially out of described fixed dam (23) is arc surface, half of the external diameter nominal size of the subsequent corrosion nominal size of arc surface and pintle right axis section (1) is identical, seal groove (42) is offered at fixed dam (23) top, establishes fixed dam Stamping Steel Ribbon (24) in seal groove (42); Blade (4) extend radially out end for arc surface, half of the subsequent corrosion nominal size of arc surface and cylinder body internal diameter nominal size (3) is identical; Described blade (4) top is offered seal groove (43), and (5) seal groove establishes the runner sealing bar in (43).
5. single blade hydraulic pressure as claimed in claim 2 is from the servo oscillating cylinder, it is characterized in that: (10) described cylinder body (3) top is provided with high-pressure channel along axial direction, (12) described high-pressure channel water intake (10) is connected with right end cap high-pressure water inlet pipe joint (11), and (9) described high-pressure channel water outlet (10) is connected with the high pressure circular groove.
6. single blade hydraulic pressure as claimed in claim 2 is from the servo oscillating cylinder, it is characterized in that: (20) described cylinder body (3) bottom is provided with low-pressure channel along axial direction, (7) described low-pressure channel water intake (20) is connected with the low pressure circular groove, and (17) described low-pressure channel water outlet (20) is connected with right end cap low pressure delivery pipe joint (11).
7. single blade hydraulic pressure as claimed in claim 1 is from the servo oscillating cylinder, it is characterized in that: described cylinder body (3) bottom radially is provided with draw-in groove (44), and described draw-in groove (44) length nominal size, width nominal size are all identical with length nominal size, the width nominal size of fixed dam (23).
8. single blade hydraulic pressure as claimed in claim 1, from the servo oscillating cylinder, is characterized in that: described left end cap external diameter nominal size (2) is identical with cylinder body external diameter nominal size (3); Left end cap from left to right has pintle seal groove (49), left end cap seal groove (46) and the left seal groove of cylinder body (48) be positioned on same axis in (2) successively, and pintle seal groove (49), left end cap seal groove (46) and the interior correspondence of the left seal groove of cylinder body (48) are provided with seal ring (37,26,27).
9. single blade hydraulic pressure as claimed in claim 1, from the servo oscillating cylinder, is characterized in that: described right end cap external diameter nominal size (11) is identical with cylinder body external diameter nominal size (3); Right end cap has spool multidiameter shaft seal groove (52), right end cap seal groove (51), the right seal groove of cylinder body (50) be positioned on same axis in (11) 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 cylinder body (50) are provided with seal ring (31,30,32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427670.2U CN203374547U (en) | 2013-07-18 | 2013-07-18 | Single-blade hydraulic pressure self-servo swinging cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427670.2U CN203374547U (en) | 2013-07-18 | 2013-07-18 | Single-blade hydraulic pressure self-servo swinging cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374547U true CN203374547U (en) | 2014-01-01 |
Family
ID=49837077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320427670.2U Withdrawn - After Issue CN203374547U (en) | 2013-07-18 | 2013-07-18 | Single-blade hydraulic pressure self-servo swinging cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352887A (en) * | 2013-07-18 | 2013-10-16 | 武汉科技大学 | Single-vane water pressure self-servo rotary valve |
| CN105545863A (en) * | 2016-01-19 | 2016-05-04 | 北京工业大学 | Water-hydraulic single-vane type oscillating cylinder |
| CN106151151A (en) * | 2015-04-09 | 2016-11-23 | 赵德朝 | There is the spiral oscillating oil cylinder of axial force compensation function |
-
2013
- 2013-07-18 CN CN201320427670.2U patent/CN203374547U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352887A (en) * | 2013-07-18 | 2013-10-16 | 武汉科技大学 | Single-vane water pressure self-servo rotary valve |
| CN103352887B (en) * | 2013-07-18 | 2015-08-19 | 武汉科技大学 | A kind of single vane water pressure self-servo rotary valve |
| CN106151151A (en) * | 2015-04-09 | 2016-11-23 | 赵德朝 | There is the spiral oscillating oil cylinder of axial force compensation function |
| CN106151151B (en) * | 2015-04-09 | 2018-04-24 | 赵德朝 | Spiral oscillating oil cylinder with axial force compensation function |
| CN105545863A (en) * | 2016-01-19 | 2016-05-04 | 北京工业大学 | Water-hydraulic single-vane type oscillating cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |