CN207393631U - A kind of oil cylinder piston locking device - Google Patents
A kind of oil cylinder piston locking device Download PDFInfo
- Publication number
- CN207393631U CN207393631U CN201721127799.6U CN201721127799U CN207393631U CN 207393631 U CN207393631 U CN 207393631U CN 201721127799 U CN201721127799 U CN 201721127799U CN 207393631 U CN207393631 U CN 207393631U
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- China
- Prior art keywords
- nut
- locking
- oil cylinder
- locking device
- locking nut
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Abstract
The utility model discloses a kind of oil cylinder piston locking devices, including cylinder body, piston rod and locking device, one end of the piston rod is arranged at the cylinder interior, the other end of the piston rod is the end of thread, the end of thread is provided with locking device, the oil cylinder piston locking device further includes servomotor and driving worm screw, and shaft coupling is provided between the servomotor and the driving worm screw.A kind of oil cylinder piston locking device of the utility model has the advantages that：1st, locking nut is formed by four pieces, is uniformly arranged on around piston rod thread end, effectively reduces the stroke of locking nut opening and closing；2nd, the locking device of the utility model, so that the equipment scope of application becomes wide, can realize a tractor serves several purposes according to the folding of the demand modeling oil cylinder piston of equipment bearing capacity；3rd, servomotor driving worm drive circle is positive either rotates backward and then controls the opening or closure of locking nut, operates simple and convenient.
Description
Technical field
The present invention relates to oil cylinders to use technical field, more particularly to a kind of oil cylinder piston locking device.
Background technology
At present, the general common locking mechanism of hydraulic cylinder of loading machine is in the market：It is profit between piston and piston rod
It is locked with holding screw and steel ball perpendicular to piston rod axis.This locking mechanism is in long-term reciprocal telescopic movement, tightening
Screw easily loosens, and steel ball is caused not have position-limiting action, loosens piston thread, comes off from piston rod, causes oil cylinder not
It can work normally, and damage other parts, cause economic loss.
Chinese invention patent 201110320666.1, the present invention relates to a kind of latch oil cylinder devices, and the invention discloses one
Kind latch oil cylinder device, including cylinder block, rodless piston, check lock lever, lock, wedge-shaped closing piece and first guide shaft, the no bar is lived
Plug and first guide shaft are separately positioned in cylinder block, described to latch the both sides for being arranged on first guide shaft bottom, the wedge shape closing piece peace
Mounted in the both sides on first guide shaft top, the rodless piston is separately to be independently arranged with check lock lever.A kind of lock oil cylinder dress of the present invention
It puts, as long as can accomplish once pressurization locking, just there is no the problem of position excursion, because the operation principle of lock oil cylinder is different from
The operation principle of general locking cylinder, makes traditional hydraulic cylinder executing agency that the change of matter have occurred, practical application effect is good
It is good.
The locker of locker and the prior art in foregoing invention patent is all an integral structure, and oil cylinder is all
High pressure oil is as driving force, it is necessary to and matching is provided with safety relief valve, when nominal load of the load more than oil cylinder, high pressure oil meeting
It is flowed out from safety relief valve, oil cylinder piston is caused to be pressed and is moved back, if device requirement large-tonnage operates, vertical compression small oil tank piston is not
It can be moved back by pressure.In summary there is an urgent need for a kind of locking device, vertical compression small oil tank can be locked, when in small ton when large-tonnage operates
When bit manipulation, and it can quickly open vertical compression small oil tank.
The content of the invention
It is an object of the invention to provide a kind of oil cylinder piston locking device, locking nut is formed by four pieces, and whole circle is set,
The stroke needed for locking nut folding is effectively reduced, furthermore, the folding of locking nut can be controlled as needed, and then is controlled
The folding of oil cylinder piston so that equipment can carry corresponding load according to demand, easy to operate simple.
To achieve the above object, technical solution is used by the utility model：A kind of oil cylinder piston locking device, including
Cylinder body, piston rod and locking device, one end of the piston rod are arranged at the cylinder interior, and the other end of the piston rod is
The end of thread, the end of thread are provided with locking device, and the oil cylinder piston locking device further includes servomotor and driving worm screw,
Shaft coupling is provided between the servomotor and the driving worm screw.
Preferably, the locking device includes locking nut, locking nut retainer plate, nut driving circle and nut driving circle
The locking nut is fixed in rack by retainer plate, the locking nut retainer plate, and the nut driving retainer plate is by described in
Nut driving circle is fixed in rack.
Preferably, the locking nut includes locking nut one, locking nut two, locking nut three and locking nut four,
The locking nut one, the locking nut two, the locking nut three and the locking nut four may be contained within the screw thread
The outer ring at end.
Preferably, nut pull rod is provided on the locking nut, is provided in the locking nut and the end of thread
Matched screw thread, the outer ring of the locking nut are provided with convex block one and slope one.
Preferably, the screw thread is zigzag, and screw thread causes the bearing capacity of screw thread to increase for zigzag, transmission efficiency and
And root of the tooth intensity is high.
Preferably, the outer ring of the nut driving circle retainer plate is provided with worm gear tooth form, worm gear tooth form and the driving snail
Bar coordinates.
Preferably, convex block two and slope two are provided in the circle of the nut driving circle, nut driving circle circle is provided outside
Convex block three and slope three, the convex block two of the nut driving circle can coordinate with the convex block one of the locking nut outer ring, in spiral shell
When mother's driving circle rotates forward, the locking nut is promoted to be closed.The convex block three of the nut driving circle, drives in the nut and encloses
During reversion, the nut pull rod on locking nut is promoted, opens locking nut.
Preferably, the servomotor matching is provided with servomotor fixed plate, and the servomotor passes through the servo
Motor fixing plate is fixedly installed in the rack.
Preferably, the driving worm screw matching is provided with driving worm screw fixed plate, and the driving worm screw passes through the driving
Worm screw fixed plate is fixedly installed in the rack.
The oil cylinder piston locking device of the utility model compared with prior art, possesses following advantageous effects：
(1) locking nut is formed by four pieces, is uniformly arranged on around piston rod thread end, is effectively reduced locking nut
The stroke of opening and closing；
(2) locking device of the utility model can according to the folding of the demand modeling oil cylinder piston of equipment bearing capacity, from
And so that the equipment scope of application becomes wide, realize a tractor serves several purposes；
(3) the positive opening for either rotating backward and then controlling locking nut of servomotor driving worm drive circle or
It is closed, operates simple and convenient.
Description of the drawings
Fig. 1 is the sectional view that the utility model oil cylinder piston locking device is fixed in rack；
Fig. 2 is the structure diagram that the utility model oil cylinder piston locking device is fixed in rack
The structure diagram of Fig. 3 the utility model oil cylinder piston locking devices
The structure diagram of the locking nut of Fig. 4 the utility model；
The structure diagram of the locking nut one of Fig. 5 the utility model；
Reference sign：1- cylinder bodies, 2- piston rods, the 21- ends of thread, 3- racks, 4- servomotors, 41- servomotors
Fixed plate, 5- driving worm screws, 51- driving worm screw fixed plates, 6- shaft couplings, 7- locking devices, 71- locking nuts, 711- lockings
Nut one, 712- locking nuts two, 713- locking nuts three, 714- locking nuts four, 715- locking nut retainer plates, 72- spiral shells
Mother's driving circle, 721- nuts driving circle retainer plate.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, a kind of oil cylinder piston locking device, including cylinder body 1, piston rod 2 and locking device, the work
One end of stopper rod 2 is arranged inside the cylinder body 1, and the other end of the piston rod 2 is the end of thread 21, and the end of thread is provided with
Locking device, the oil cylinder piston locking device further include servomotor 4 and driving worm screw 5, the servomotor 4 and described
Shaft coupling 6 is provided between driving worm screw 5.
The locking device 7 includes locking nut 71, locking nut retainer plate 715, nut driving circle 72 and nut driving
Retainer plate 721 is enclosed, the locking nut 71 is fixed in rack 3 by the locking nut retainer plate 715, and the nut driving is solid
Surely nut driving circle is fixed in rack 3 by circle 721.
Locking nut 71 includes locking nut 1, locking nut 2 712, locking nut 3 713 as shown in Figure 4 and Figure 5
With locking nut 4 714, the locking nut 1, the locking nut 2 712, the locking nut 3 713 and the lock
Tight nut 4 714 may be contained within the outer ring of the end of thread.Nut pull rod 73, the locking are provided on the locking nut 71
Be provided in nut 71 with the 21 matched screw thread of the end of thread, the outer ring of the locking nut 71 is additionally provided with one He of convex block
Slope one, the screw thread 74 set in locking nut 71 are zigzag so that the bearing capacity of screw thread increases, transmission efficiency and
Root of the tooth intensity is high.
Locking nut 71 is fixed in rack 3 by locking nut retainer plate 715, and leaves 0.1mm gaps, and locking nut is solid
Surely there is cross type groove in circle 715, locking nut 71 can slide in this cross type groove.Nut driving circle 72 is driven by nut to be enclosed
Retainer plate 721 is fixed on locking nut retainer plate 715, and leaves gap, and nut driving circle 72 can rotate freely.
The outer ring of the nut driving circle retainer plate 721 is provided with worm gear tooth form, and worm gear tooth form is matched somebody with somebody with the driving worm screw 5
It closes.Convex block two and slope two are provided in the circle of the nut driving circle 72,72 circle of nut driving circle is provided outside three He of convex block
Slope three, the convex block two of the nut driving circle 72 can coordinate with the convex block one of 71 outer ring of locking nut, be driven in nut
When moving-coil rotates forward, the locking nut 71 is promoted to be closed.The convex block three of the nut driving circle 72, drives in the nut and encloses
During reversion, the nut pull rod 73 on locking nut 71 is promoted, opens locking nut 71.
In the utility model servomotor 4 matching be provided with servomotor fixed plate 41, for rack 3, drive snail
The matching of bar 5 is provided with driving worm screw fixed plate 51, is also used for the fixation with rack 3.
As shown in Fig. 1~5, during the work time, servomotor 4 passes through the oil cylinder piston locking device of the utility model
It drives worm screw 5 that nut driving circle 72 is driven to rotate forward either to invert and then control the opening or closure of locking nut 71, specifically
For：Nut driving circle 72 promotes the closure of locking nut 71 when rotating forward, nut can promote locking when driving 72 reversion of circle
Nut pull rod 73 on nut 71 opens locking nut 71.
The oil cylinder piston locking device of the utility model compared with prior art, possesses following advantageous effects：1st, locking screw
Mother 71 is formed by four pieces, is uniformly arranged on around 1 end of thread 21 of piston rod, effectively reduces locking nut opening and closing
Stroke；2nd, the locking device of the utility model can according to the folding of the demand modeling oil cylinder piston of equipment bearing capacity so that
It obtains the equipment scope of application and becomes wide, realize a tractor serves several purposes；3rd, servomotor driving worm drive circle is positive or rotates backward, and then
The opening or closure of locking nut are controlled, operates simple and convenient.
The explanation of above example is only intended to the method and its core concept that help understands the utility model.It should refer to
Go out, it for those skilled in the art, can also be to this on the premise of the utility model principle is not departed from
Some improvement and modification can also be carried out for utility model, these improvement and modification also fall into the protection domain of the utility model claims
It is interior.
Claims (9)
1. a kind of oil cylinder piston locking device, it is characterised in that：Oil cylinder piston locking device include cylinder body (1), piston rod (2) and
Locking device, one end of the piston rod (2) are arranged at the cylinder body (1) inside, and the other end of the piston rod (2) is screw thread
It holds (21), the end of thread is provided with locking device (7), and the oil cylinder piston locking device further includes servomotor (4) and drives
Dynamic worm screw (5) is provided with shaft coupling (6) between the servomotor (4) and the driving worm screw (5).
2. oil cylinder piston locking device according to claim 1, it is characterised in that：The locking device (7) includes locking
Nut (71), locking nut retainer plate (715), nut driving circle (72) and nut driving circle retainer plate (721), the locking screw
The locking nut (71) is fixed in rack (3) by female retainer plate (715), and the nut driving retainer plate (721) is by described in
Nut driving circle is fixed in rack (3).
3. oil cylinder piston locking device according to claim 2, it is characterised in that：The locking nut (71) includes locking
Nut one (711), locking nut two (712), locking nut three (713) and locking nut four (714), the locking nut one
(711), the locking nut two (712), the locking nut three (713) and the locking nut four (714) be all provided with it is described
The outer ring of the end of thread.
4. oil cylinder piston locking device according to claim 2, it is characterised in that：It is provided on the locking nut (71)
Nut pull rod (73), the locking nut (71) is interior to be provided with and the end of thread (21) matched screw thread (74), the locking
The outer ring of nut (71) is provided with convex block one and slope one.
5. oil cylinder piston locking device according to claim 4, it is characterised in that：The screw thread is zigzag.
6. oil cylinder piston locking device according to claim 2, it is characterised in that：The nut driving circle retainer plate
(721) outer ring is provided with worm gear tooth form (7211), and worm gear tooth form coordinates with the driving worm screw (5).
7. oil cylinder piston locking device according to claim 5, it is characterised in that：In the circle of the nut driving circle (72)
Convex block two and slope two are provided with, nut driving circle (72) circle is provided outside convex block three and slope three, the nut driving circle
(72) convex block two can coordinate with the convex block one of the locking nut (71) outer ring, when nut drives circle to rotate forward, promote institute
Locking nut (71) closure is stated, the convex block three of the nut driving circle (72) when the nut drives circle reversion, promotes locking
Nut pull rod (73) on nut (71) opens locking nut (71).
8. oil cylinder piston locking device according to claim 2, it is characterised in that：Servomotor (4) matching is set
There is servomotor fixed plate (41), the servomotor (4) is fixedly installed on described by the servomotor fixed plate (41)
In rack (3).
9. oil cylinder piston locking device according to claim 2, it is characterised in that：The driving worm screw (5), which matches, to be set
There is driving worm screw fixed plate (51), the driving worm screw (5) is fixedly installed on described by the driving worm screw fixed plate (51)
In rack (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127799.6U CN207393631U (en) | 2017-09-05 | 2017-09-05 | A kind of oil cylinder piston locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127799.6U CN207393631U (en) | 2017-09-05 | 2017-09-05 | A kind of oil cylinder piston locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393631U true CN207393631U (en) | 2018-05-22 |
Family
ID=62416818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721127799.6U Active CN207393631U (en) | 2017-09-05 | 2017-09-05 | A kind of oil cylinder piston locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393631U (en) |
-
2017
- 2017-09-05 CN CN201721127799.6U patent/CN207393631U/en active Active
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