CN208138244U - A kind of hydraulic cylinder with locking device - Google Patents
A kind of hydraulic cylinder with locking device Download PDFInfo
- Publication number
- CN208138244U CN208138244U CN201820685612.2U CN201820685612U CN208138244U CN 208138244 U CN208138244 U CN 208138244U CN 201820685612 U CN201820685612 U CN 201820685612U CN 208138244 U CN208138244 U CN 208138244U
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- locking
- cylinder
- hydraulic cylinder
- piston rod
- radial
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- 230000008676 import Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
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Abstract
Hydraulic cylinder with locking device, the cylinder body of piston rod extension end is connected with locking seat, there is locking set even on the piston rod in locking seat, locking is cased with circumferentially groove, locking set groove in locking seat has pin shaft, a pair of of semi-circular shape locking ring is hinged on pin shaft, the other end of locking ring has been respectively articulated with pull rod, the other end of pull rod is hinged with the interior radial bars in the lateral frame of locking seat, the other end of radial bars is connected with radial alignment driving device, there is forward and backward position switch in lateral frame, there is the switch contact of forward and backward position switch in radial bars.When movement forward and backward with radial alignment driving device driving radial bars, it drives a pair of locking ring simultaneously by pull rod and separates, when merging, biggish driving force has not been needed, a pair of locking can be allowed to encircle in the groove for holding locking set, has reliably guaranteed that piston rod cannot be axially moved, there is forward and backward position switch in lateral frame, there is switch contact in radial bars, signal whether hydraulic cylinder locking can be issued, cost is not high.
Description
Technical field
The utility model relates to a kind of hydraulic cylinder with locking device, especially a kind of hydraulic cylinder with locking device
Locking device.
Background technique
Hydraulic cylinder has a circle tube cylinder, and there is a cylinder cap at the both ends of cylinder body respectively, the two sides of cylinder body have respectively hydraulic medium into and out of
Mouthful, there is piston in cylinder body, piston is connected with piston rod, and piston rod is stretched out from the cylinder cap of one end.In use, allowing the hydraulic of cylinder barrel two sides
Medium import and export is connected with hydraulic station respectively, with hydraulic drive piston motion, makees piston rod from extended or retracted past of cylinder cap
Multiple movement drives driven-mechanism movement.
Driven mechanism keeps piston rod in the state of indentation position sometimes for after piston rod is retracted cylinder body.For
Hydraulic cylinder is allowed to be able to maintain the state that piston rod rests on indentation position, hydraulic cylinder needs locking device, is retracted in piston rod
After cylinder body, with locking device lock piston bar, prevent piston rod from stretching out activity.
In the prior art, a kind of hydraulic cylinder locking device, the liquid are disclosed in Chinese patent ZL 2,012 1 0348148.5
The locking device of cylinder pressure has the cylindrical lock reservation for the piston rod extension end for being connected in cylinder body, is connected in piston rod one end in locking seat
Locking column, have left and right two pin shaft parallel with the axial direction of hydraulic cylinder in locking seat, left and right two pin shafts are hinged with a pair
Semi-circular shape brake block, one end of brake block are connected with radial bars, and radial bars are connected with radial alignment driving device.Linear drives
Device can be bolt and nut driving device, fluid pressure drive device or electromagnetic actuator device.
A pair of of brake block in above-mentioned locking device is band-type brake structure, and a pair of of brake block is trapped among locking column two sides, is used
Radial alignment driving device can drive a pair of of brake block to separate and merge.When a pair of of brake block separates, do not have to locking column
There is constraint, do not influence the stretching activity of piston rod, when a pair of of brake block merges, a pair of of brake block holds locking column tightly and generates lock
The frictional force for watt acting on locking column prevents the stretching activity of locking column, realizes the locking to piston rod retraction cylinder hydraulic cylinder.
This hydraulic cylinder locking device has following deficiency：
1. hydraulic cylinder locking device is combined by brake shoe with the locking column matching for being connected in piston rod, the locking of piston rod is needed
Brake shoe is wanted to have biggish frictional force to locking column, this requires the linear drive apparatus of biggish driving force, causes hydraulic cylinder
Locking device cost is higher；
2. the sliding of locking column can also occur with friction force locking, the locking of piston rod is not very reliable；
3. hydraulic cylinder locking device does not have state remote transmission device, can only state whether on-site-inspection locks, Bu Neng
Place far from scene understands state whether hydraulic cylinder locking.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, propose that a kind of cost is not high, locking is reliable, can be locking
The hydraulic cylinder with locking device of state teletransmission.
The utility model is realized with the following method.
Hydraulic cylinder with locking device has circle tube cylinder, and there are cylinder cap, the two sides difference of cylinder body in the both ends of cylinder body respectively
There is hydraulic medium import and export, there is piston in cylinder body, piston is connected with piston rod, and piston rod is stretched out from the cylinder cap of one end, and piston rod is stretched
The cylinder body of outlet is connected with cylindrical lock reservation,
There is cylinder-shaped locking set even on the piston rod in locking seat, the excircle for locking set has groove circumferentially, lock
Locking set groove in reservation has the pin shaft parallel with the axial direction of hydraulic cylinder, and a pair of of semi-circular shape locking is hinged on pin shaft
Ring, the other end of locking ring have been respectively articulated with pull rod, and the other end of pull rod is hinged with radial bars, and radial bars are in the side of locking seat
Into frame, the other end of radial bars is connected with radial alignment driving device, there is forward and backward position switch, radial bars in lateral frame
On have the switch contact of forward and backward position switch.
In use, the forward and backward movement of radial bars of the utility model, radial bars can be driven with radial alignment driving device
Forward and backward movement by pull rod can drive a pair of locking cyclization and and separate, when merging, do not needed biggish driving force, just
The groove that a pair of of brake shoe clasping locking can be allowed to cover reliably guarantees that piston rod cannot be axially moved, and realize the lock to hydraulic cylinder
Fixed, when separating, a pair of locking ring is deviate from the groove of locking set, and piston rod can be axially moved, and realizes to hydraulic cylinder
Unlock, the cost of product is not high, and when the forward and backward movement of radial bars, switch contact can trigger forward and backward position switch respectively, issue
Signal whether hydraulic cylinder locking can understand state whether hydraulic cylinder locks in the place far from scene.
With reference to the accompanying drawing, the utility model is further described.
Detailed description of the invention
Fig. 1 is that a kind of main view office for hydraulic cylinder with locking device that scheme of the invention according to the present utility model proposes is cutd open
Schematic diagram；
Fig. 2 is enlarged section schematic diagram at the I of Fig. 1；
Fig. 3 is the A-A diagrammatic cross-section of the utility model Fig. 1 in unlock；
Fig. 4 is the A-A diagrammatic cross-section of the utility model Fig. 1 in locking；
Fig. 5 be radial alignment driving device be bolt and nut driving device Fig. 1 A-A diagrammatic cross-section.
Specific embodiment
In Fig. 1 ~ Fig. 4, the hydraulic cylinder with locking device has circle tube cylinder 1, and there is cylinder cap 3,4 at the both ends of cylinder body respectively,
There are hydraulic medium import and export 5,6 in the two sides of cylinder body respectively, there is piston 2 in cylinder body, and piston is connected with piston rod 7, and piston rod is from cylinder cap
4 stretch out, and the cylinder body of piston rod extension end is connected with cylindrical lock reservation 8, there is cylinder-shaped locking even on the piston rod in locking seat
Set 9, the excircle for locking set have groove 10 circumferentially, and the locking set groove in locking seat has axial parallel with hydraulic cylinder
Pin shaft 11, a pair of semicircle locking ring 12,13 is hinged on pin shaft, the other end of locking ring has been respectively articulated with pull rod 14,15,
The other end of pull rod is hinged with radial bars 16, and radial bars are in the lateral frame 17 of locking seat, and the other end of radial bars is connected with
Hydraulic cylinder 18 has forward and backward position switch 19,20 in lateral frame, there is the switch contact 21 of forward and backward position switch in radial bars.
The above-mentioned radial alignment driving device being connected with the radial bars other end is hydraulic cylinder.It is connected with the radial bars other end
Radial alignment driving device is also possible to bolt and nut driving device.
In Fig. 5, in the hydraulic cylinder with locking device, the radial alignment driving device being connected with the radial bars other end is spiral shell
Stem nut driving device 22.
Claims (3)
1. a kind of hydraulic cylinder with locking device, there is circle tube cylinder, there are cylinder cap, the two sides point of cylinder body in the both ends of cylinder body respectively
There is not hydraulic medium import and export, there is piston in cylinder body, piston is connected with piston rod, and piston rod is stretched out from the cylinder cap of one end, piston rod
The cylinder body of extension end is connected with cylindrical lock reservation, it is characterised in that：
There is cylinder-shaped locking set even on the piston rod in locking seat, the excircle for locking set has groove circumferentially, locking seat
Interior locking set groove has the pin shaft parallel with the axial direction of hydraulic cylinder, and a pair of of semi-circular shape locking ring, lock are hinged on pin shaft
The other end for determining ring has been respectively articulated with pull rod, and the other end of pull rod is hinged with radial bars, and radial bars are the lateral frames in locking seat
In frame, the other end of radial bars is connected with radial alignment driving device, has forward and backward position switch in lateral frame, has in radial bars
The switch contact of forward and backward position switch.
2. the hydraulic cylinder according to claim 1 with locking device, characterized in that the radial alignment driving device is
Bolt and nut driving device.
3. the hydraulic cylinder according to claim 1 with locking device, characterized in that the radial alignment driving device is
Hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820685612.2U CN208138244U (en) | 2018-05-09 | 2018-05-09 | A kind of hydraulic cylinder with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820685612.2U CN208138244U (en) | 2018-05-09 | 2018-05-09 | A kind of hydraulic cylinder with locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138244U true CN208138244U (en) | 2018-11-23 |
Family
ID=64313239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820685612.2U Active CN208138244U (en) | 2018-05-09 | 2018-05-09 | A kind of hydraulic cylinder with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208138244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361240A (en) * | 2018-05-09 | 2018-08-03 | 铁岭特种阀门股份有限公司 | A kind of hydraulic cylinder with locking device |
| CN110645300A (en) * | 2019-09-30 | 2020-01-03 | 江苏军宏机械有限公司 | Shock-absorbing oil cylinder for rotary drilling rig |
-
2018
- 2018-05-09 CN CN201820685612.2U patent/CN208138244U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361240A (en) * | 2018-05-09 | 2018-08-03 | 铁岭特种阀门股份有限公司 | A kind of hydraulic cylinder with locking device |
| CN110645300A (en) * | 2019-09-30 | 2020-01-03 | 江苏军宏机械有限公司 | Shock-absorbing oil cylinder for rotary drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic cylinder with locking device Effective date of registration: 20221027 Granted publication date: 20181123 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: TIELING SPECIAL VALVE Corp. Registration number: Y2022210000169 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181123 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: TIELING SPECIAL VALVE Corp. Registration number: Y2022210000169 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A hydraulic cylinder with a locking device Granted publication date: 20181123 Pledgee: Tieling Branch of Shengjing Bank Co.,Ltd. Pledgor: TIELING SPECIAL VALVE Corp. Registration number: Y2024210000029 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |