CN208764037U - Mechanical locking oil cylinder - Google Patents
Mechanical locking oil cylinder Download PDFInfo
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- CN208764037U CN208764037U CN201821453969.4U CN201821453969U CN208764037U CN 208764037 U CN208764037 U CN 208764037U CN 201821453969 U CN201821453969 U CN 201821453969U CN 208764037 U CN208764037 U CN 208764037U
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- piston
- cylinder
- unlock
- blind hole
- conduit
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Abstract
The utility model discloses a kind of mechanical locking oil cylinders, including cylinder barrel, cylinder bottom, guide sleeve, piston rod and piston, cylinder barrel is equipped with rodless cavity hydraulic fluid port and rod chamber hydraulic fluid port, the piston is divided into the secondary piston being successively close to, middle piston and rear piston, and the outer circle of the inner hole of cylinder and three pistons is transition fit；Blind hole is equipped in piston rod, one end of a conduit passes through cylinder bottom and is located in blind hole, and the unlock oilhole of connection blind hole and middle outside piston face is equipped in piston rod and middle piston, and the other end of conduit is equipped with unlock oil inlet；The utility model has the advantages that structure is relatively simple, at low cost, locking is secured, and can realize and be automatically brought into operation, easy to use.
Description
Technical field
The utility model relates to a kind of mechanical locking oil cylinders.
Background technique
Existing locking cylinder, it is a kind of using the structure that locking nut is arranged on the piston rod, disadvantage are as follows: 1) to need artificial
Nut is unclamped in locking, can not achieve and is automatically brought into operation；2) piston rod bear compared with big load when, screw thread is easily-deformable, occur slip or
Phenomenon is killed, causes to fail；Another kind uses the structure of hydraulic locking, i.e., hydraulic lock is arranged at oil inlet, prevents oil liquid from returning
The mode of stream reaches the purpose to piston rod locking, and not only structure is complex, and using the time it is slightly long after Hydraulic Elements can not
Avoid there are a small amount of leakage phenomenon, cause to be difficult to realize accurately to lock, especially under the operating condition of some heavy duties, exist
Security risk.
Summary of the invention
The purpose of this utility model is In view of the above shortcomings of the prior art, to provide a kind of mechanical locking oil cylinder, it
Have the advantages that structure is relatively simple, at low cost, locking is secured, and can realize and be automatically brought into operation, it is easy to use.
In order to achieve the above objectives, the mechanical locking oil cylinder of the utility model, including cylinder barrel, cylinder bottom, guide sleeve, piston rod and
Piston, cylinder barrel be equipped with rodless cavity hydraulic fluid port and rod chamber hydraulic fluid port, it is characterised in that the piston be divided into the secondary piston being successively close to,
The outer circle of middle piston and rear piston, the inner hole of cylinder and three pistons is transition fit；Blind hole is equipped in piston rod, a conduit
One end passes through cylinder bottom and is located in blind hole, and the unlock oilhole of connection blind hole and middle outside piston face is equipped in piston rod and middle piston,
The other end of conduit is equipped with unlock oil inlet.
It is usually locking state since the outer circle of inner hole of cylinder and three pistons is transition fit；When need to unlock, pass through unlock
Oil inlet is passed through hydraulic oil, and hydraulic oil is flowed in middle outside piston towards two sides, and distending cylinder barrel realizes unlock；Once hydraulic oil
Pressure disappears, and cylinder barrel is shunk, can automatically lock；For the utility model without ad hoc locking device, structure is relatively simple, at low cost,
It is locked by transition fit, securely, being passed through for hydraulic oil can be achieved to be automatically brought into operation, easy to use for locking；
The periphery of middle piston is equipped with helicla flute as a further improvement of the utility model,；Helicla flute is convenient for hydraulic oil
It is quick, be uniformly distributed, the timeliness of unlock can be improved；
The unlock oil inlet of the conduit is located in cylinder bottom and is arranged radially as a further improvement of the utility model,
The connecting hole being connected with unlock oil inlet is equipped in cylinder bottom and cylinder barrel；Conduit does not stretch out cylinder bottom, avoids axial occupation space, just
In components such as setting position sensors；
In conclusion the utility model has the advantages that structure is relatively simple, at low cost, locking is secured, and can realize certainly
Dynamic operation, it is easy to use.
Detailed description of the invention
Fig. 1 is the main view of the utility model embodiment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the mechanical locking oil cylinder of the embodiment, including cylinder barrel 1, cylinder bottom 2, guide sleeve 3, piston rod 4 and work
Plug, cylinder barrel 1 are equipped with rodless cavity hydraulic fluid port 5 and rod chamber hydraulic fluid port 6, and the piston is divided into the secondary piston 7 being successively close to, middle piston 8
With rear piston 9, the outer circle of the inner hole of the cylinder barrel 1 and three pistons 7,8,9 is transition fit, and the periphery of middle piston 8 is equipped with spiral shell
Spin slot 12；Blind hole 10 is equipped in piston rod 4, one end of a conduit 11 passes through cylinder bottom 2 and is located in blind hole 10, piston rod 4 and middle work
The unlock oilhole 13 of connection blind hole 10 and middle outside piston face is equipped in plug 8, the other end of conduit 11, which is equipped with, to be located in cylinder bottom 2 simultaneously
The unlock oil inlet 14 being arranged radially is equipped with the connecting hole 15 being connected with unlock oil inlet 14 in cylinder bottom 2 and cylinder barrel 1.
It is usually locking state since the inner hole of cylinder barrel 1 and the outer circle of three pistons 7,8,9 are transition fit；When need to unlock,
It is passed through hydraulic oil by connecting hole 15, unlock oil inlet 14, then through blind hole 10, unlock 13 hydraulic oil of oilhole in middle 8 outer circle of piston
It is flowed towards two sides, distending cylinder barrel 1, realizes unlock；Once hydraulic fluid pressure disappears, cylinder barrel 1 is shunk, can automatically lock；This reality
Without ad hoc locking device, structure is relatively simple, at low cost with novel, is locked by transition fit, locking securely, hydraulic oil
Being passed through, which can be achieved, is automatically brought into operation, easy to use；Helicla flute 12 quickly, is uniformly distributed convenient for hydraulic oil in middle 8 outer circle of piston, can
Improve the timeliness of unlock；The unlock oil inlet 14 of conduit 11 is located in cylinder bottom 2 and is arranged radially, and conduit 11 can not stretch out cylinder bottom
2, axial occupation space is avoided, waits components convenient for setting position sensor 16.
Claims (3)
1. a kind of mechanical locking oil cylinder, including cylinder barrel, cylinder bottom, guide sleeve, piston rod and piston, cylinder barrel is equipped with rodless cavity hydraulic fluid port
With rod chamber hydraulic fluid port, it is characterised in that the piston is divided into the secondary piston being successively close to, middle piston and rear piston, in the cylinder barrel
The outer circle of Kong Yusan piston is transition fit；Blind hole is equipped in piston rod, one end of a conduit passes through cylinder bottom and is located in blind hole, living
Be equipped with the unlock oilhole of connection blind hole and middle outside piston face in stopper rod and middle piston, the other end of conduit be equipped with unlock oil into
Mouthful.
2. mechanical locking oil cylinder as described in claim 1, it is characterised in that the periphery of middle piston is equipped with helicla flute.
3. mechanical locking oil cylinder as claimed in claim 1 or 2, it is characterised in that the unlock oil inlet of the conduit is located at cylinder bottom
It is interior and be arranged radially, the connecting hole being connected with unlock oil inlet is equipped in cylinder bottom and cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453969.4U CN208764037U (en) | 2018-09-06 | 2018-09-06 | Mechanical locking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453969.4U CN208764037U (en) | 2018-09-06 | 2018-09-06 | Mechanical locking oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764037U true CN208764037U (en) | 2019-04-19 |
Family
ID=66135405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821453969.4U Active CN208764037U (en) | 2018-09-06 | 2018-09-06 | Mechanical locking oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365576A (en) * | 2020-03-16 | 2020-07-03 | 中国人民解放军63926部队 | High-precision adjusting structure under large-load working condition |
-
2018
- 2018-09-06 CN CN201821453969.4U patent/CN208764037U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365576A (en) * | 2020-03-16 | 2020-07-03 | 中国人民解放军63926部队 | High-precision adjusting structure under large-load working condition |
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