CN203176060U - Hydraulic locking device - Google Patents
Hydraulic locking device Download PDFInfo
- Publication number
- CN203176060U CN203176060U CN 201220699859 CN201220699859U CN203176060U CN 203176060 U CN203176060 U CN 203176060U CN 201220699859 CN201220699859 CN 201220699859 CN 201220699859 U CN201220699859 U CN 201220699859U CN 203176060 U CN203176060 U CN 203176060U
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- CN
- China
- Prior art keywords
- locking
- hydraulic
- watt
- spring
- hydraulic locking
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- 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 - Fee Related
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Abstract
The utility model discloses a hydraulic locking device. The hydraulic locking device comprises a device outer shell (1), locking gaskets (2), springs (3), sliding guide pins (4) and locked shafts (5), and is characterized in that the sliding guide pins (4) are installed at the two ends of the locking gaskets (2), the springs are sleeved on cylindrical pins at the back of the locking gaskets (2), the locking gaskets (2) are installed into the device outer shell (1) along radial grooves formed in the two ends of the device outer shell (1), and the cylindrical pins at the back of the locking gaskets (2) and the springs (3) are aligned to holes in the inner cylindrical faces of the device outer shell (1) and inserted into the holes. The hydraulic locking device can lock any position of the shafts making axial reciprocating motion along the axis of the device or rotating around the axis of the device, the locked positions are kept unchanged, and therefore the hydraulic locking device has the advantages of being capable of achieving locking of any position, easy to manufacture, convenient to maintain and high in reliability, the hydraulic locking device will not be disturbed easily, and the detachable structure makes the hydraulic locking device be capable of being assembled with other machines to be used.
Description
Technical field
The utility model relates to a kind of hydraulic locking apparatus, particularly relate to a kind of can be to locking along its axis axially reciprocating or around the arbitrary position of the axle of its axis rotation, and the hydraulic locking apparatus that remains unchanged, be the improvement to existing hydraulic locking apparatus structure.
Background technique
Hydraulic locking apparatus be applicable to need locking low-speed motion mechanically, as the to-and-fro motion of hydraulic cylinder piston rod, the rotation of machine tool feed leading screw etc.And the hydraulic locking apparatus that uses now adopts the mode of oil hydraulic circuit pressurize to lock usually, and this locking mode can only be locked axial motion, and as oil hydraulic cylinder, and working procedure is unreliable.For other hydraulic locking apparatus, common complex structure, precision is low, as ball type, have only when ball grooves and ball to just locking at once, can not realize that the arbitrary position locks, and circumferentially can not lock complex structure; Another kind is friction type, adopt the friction of wedge-shaped blocks and axle to realize locking mostly, but wedge-shaped blocks is along axially compressing gradually in locking, before not compressing fully, because the existence of processing and assembly error can produce disturbance in the axial direction, influences required precision.
The model utility content
The purpose of this utility model is the above-mentioned deficiency that overcomes prior art, thereby designs a kind of improved hydraulic locking apparatus.This hydraulic locking apparatus that the utility model provides have can realize arbitrary position locking, easy to manufacture, easy to maintenance, reliability is high, be difficult for disturbance, demountable structure make its can with characteristics such as other machinery assembling uses.
The technological scheme that the utility model provides is: this hydraulic locking apparatus, comprise: crust of the device 1, locking watts 2, spring 3, slide-and-guide pin 4 and the axle 5 that is locked, described slide-and-guide pin 4 is installed in the two ends of locking watts 2, described spring 3 is enclosed within on the straight pin at locking watt 2 backs, described locking watt 2 radial grooves along crust of the device 1 two ends are installed to its inside, and the straight pin at feasible locking watt 2 backs and spring 3 align with the hole on crust of the device 1 inner cylindrical surface and insert wherein.
Described locking watts 2 and slide-and-guide pin 4 are in locking and remove in the locking process, and locking watts 2 is done at the effect lower edge of slide-and-guide pin 4 crust of the device 1 and radially slided.
The arc surface of the rubbing surface of described locking watts 2 for cooperating with the axle that will lock, and be inlaid with wear-resisting tin bronze sheet, and there is straight pin at the back locked watts 2 quantity and is at least two.
The quantity of described locking watts 2 is circumferentially evenly arranged 2 or 3 or 4 according to the requirement of coupling mechanism force along axle.
Described spring 3 is coil type spring or dish spring, and the quantity of spring 3 is consistent with the straight pin quantity at locking watt back.
Described hydraulic locking apparatus adopts the flange-type structure of the installation that can match with needs locking machinery.
The beneficial effects of the utility model are.
(1) locking watt is coupling in the tactile process and can makes it and spool can contact the raising locking effect better around slide-and-guide pin fine rotation with being locked.
(2) locking watt is radially to-and-fro motion, can not produce any disturbance to axle in the locking process.
(3) adopt feeding hydraulic oil to remove locking, under the pneumatics, spring keeps the mode of locking, and assurance still can keep locking when underground breaks down, improve the reliable lock degree.
(4) owing to lock the effect of the straight pin at watt back, when feeding hydraulic oil, hydraulic oil seldom just can be removed locking, improves speed of response.
(5) crust of the device adopts flanged mounting type, has very high assembling characteristic with the equipment of needs such as oil hydraulic cylinder locking.
Description of drawings
Fig. 1 is general structure schematic representation of the present utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Fig. 4 is that the C of Fig. 1 is to view.
Fig. 5 is the partial view of Fig. 1.
Mark among the figure: crust of the device 1, locking watts 2, spring 3, slide-and-guide pin 4, axle 5, groove 6, vent 7 are locked.
Embodiment
Below in conjunction with accompanying drawing the present invention is done a nearly step explanation.
As Fig. 1～shown in Figure 5, the utility model is a kind of improved hydraulic locking apparatus, comprises crust of the device 1, locking watts 2, spring 3, slide-and-guide pin 4 and the axle 5 that is locked.Slide-and-guide pin 4 is installed in the two ends of locking watts 2, spring 3 is enclosed within on the straight pin at locking watt 2 backs, the locking watt radial groove along crust of the device 1 two ends is installed to its inside, and the straight pin at locking watt back and spring align with the hole on the crust of the device inner cylindrical surface and insert wherein (as Fig. 5) at this moment.As requested can along the axle 5 that is locked circumferentially evenly arrange multi-disc lockings such as 2,3,4 watt, reach the locking requirement, but in order to satisfy the required precision of machinery, use 2 lockings watt at least.
The utility model is a kind of hydraulic locking apparatus, can make up with the multiple axle base part of locking that needs by its flanged mounting type.
During locking, under the effect of spring 3, locking watts 2 is pressed on the axle 5 that is locked, by locking watts 2 and the frictional force between spools 5 of being locked with shaft locking, in the locking process, because assembling and make the existence in gap, locking watts 2 can slightly be swung around the slide-and-guide pin, makes locking watts 2 and axle 5 pressings better that are locked.
When axle need slide or rotate, hydraulic oil is by four oilhole A(on the crust of the device such as Fig. 2, shown in Figure 4), oiling in locking watts 2 and the cavity that is locked between spools 5, because locking watts 2 was stitching state with being locked between the axle 5 before logical hydraulic oil, therefore have groove 6(such as Fig. 1, shown in Figure 3 in the locking watts 2) play the effect of hydraulic fluid chamber, locking watts 2 is outwards moved along the radial groove on the crust of the device, and axle 5 separates with being locked.In the cavity volume D of locking device, have vent 7, locking watts 2 can be free to slide.After certain distance was slided in locking watts 2, the straight pin at locking watt 2 backs just bumped against the bottom, hole on crust of the device 1 cylndrical surface, and stop motion reaches and uses a spot of hydraulic oil just to realize unclamping the purpose of locking.
Claims (5)
1. hydraulic locking apparatus, include crust of the device (1), locking watt (2), spring (3), slide-and-guide pin (4) and the axle (5) that is locked, it is characterized in that: described slide-and-guide pin (4) is installed in the two ends of locking watt (2), described spring (3) is enclosed within on the straight pin at locking watt (2) back, described locking watt (2) is installed to its inside along the radial groove at crust of the device (1) two ends, and the straight pin at locking watt (2) back and spring (3) align with the hole on crust of the device (1) inner cylindrical surface and insert wherein.
2. hydraulic locking apparatus according to claim 1 is characterized in that: in locking with remove locking watt (2) in the locking process and device shell (1) in the effect lower edge of slide-and-guide pin (4) and do and radially slide.
3. hydraulic locking apparatus according to claim 2 is characterized in that: the arc surface of the rubbing surface of locking watt (2) for cooperating with the axle that will lock, and be inlaid with wear-resisting tin bronze sheet, and there is straight pin at the back, and quantity is at least two.
4. hydraulic locking apparatus according to claim 3 is characterized in that: the quantity of locking watt (2) is circumferentially evenly arranged 2 or 3 or 4 according to the requirement of coupling mechanism force along axle.
5. hydraulic locking apparatus according to claim 1, it is characterized in that: spring (3) is coil type spring or dish spring, spring (3) quantity is consistent with the straight pin quantity at locking watt back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699859 CN203176060U (en) | 2012-12-18 | 2012-12-18 | Hydraulic locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699859 CN203176060U (en) | 2012-12-18 | 2012-12-18 | Hydraulic locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176060U true CN203176060U (en) | 2013-09-04 |
Family
ID=49072763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699859 Expired - Fee Related CN203176060U (en) | 2012-12-18 | 2012-12-18 | Hydraulic locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176060U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481968A (en) * | 2014-11-03 | 2015-04-01 | 无锡市百顺机械厂 | Tensioning device of hydraulic cylinder cover |
| CN105736507A (en) * | 2016-03-17 | 2016-07-06 | 浙江德迈机械有限公司 | Locking air cylinder |
| CN106481616A (en) * | 2016-12-06 | 2017-03-08 | 泸州长江液压密封件有限公司 | The hydraulic cylinder of self-locking is carried out using spring |
-
2012
- 2012-12-18 CN CN 201220699859 patent/CN203176060U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481968A (en) * | 2014-11-03 | 2015-04-01 | 无锡市百顺机械厂 | Tensioning device of hydraulic cylinder cover |
| CN104481968B (en) * | 2014-11-03 | 2017-02-15 | 李建尧 | Tensioning device of hydraulic cylinder cover |
| CN105736507A (en) * | 2016-03-17 | 2016-07-06 | 浙江德迈机械有限公司 | Locking air cylinder |
| CN106481616A (en) * | 2016-12-06 | 2017-03-08 | 泸州长江液压密封件有限公司 | The hydraulic cylinder of self-locking is carried out using spring |
| CN106481616B (en) * | 2016-12-06 | 2018-02-06 | 泸州长江液压密封件有限公司 | The hydraulic cylinder of self-locking is realized using spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |