CN205779994U - A kind of skidding hydraulic cylinder assembly - Google Patents
A kind of skidding hydraulic cylinder assembly Download PDFInfo
- Publication number
- CN205779994U CN205779994U CN201620421264.9U CN201620421264U CN205779994U CN 205779994 U CN205779994 U CN 205779994U CN 201620421264 U CN201620421264 U CN 201620421264U CN 205779994 U CN205779994 U CN 205779994U
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- piston
- steel ball
- hydraulic fluid
- fluid port
- fairlead
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Abstract
The utility model discloses a kind of skidding hydraulic cylinder assembly, including cylinder barrel, piston, piston rod, fairlead, multiple from lock unit, piston, fairlead are placed in cylinder barrel, form rodless cavity between piston and cylinder barrel, and one end of piston rod connects through fairlead piston；Cylinder barrel is provided with main hydraulic fluid port, secondary hydraulic fluid port, multiple holding tank, and main hydraulic fluid port connects with rodless cavity, and multiple holding tanks are positioned at the fairlead side near piston, and multiple holding tanks all connect with secondary hydraulic fluid port；Piston is provided with multiple accepting groove, accepting groove being radially arranged along piston, above-mentioned multiple is respectively placed in multiple accepting groove from lock unit, includes spring, steel ball from lock unit, and one end of spring is connected with steel ball, and the other end is fixed.This utility model simple in construction, easy to use, effectively avoid piston rod surprisingly to shrink.
Description
Technical field
This utility model relates to oil cylinder technical field, particularly relates to a kind of skidding hydraulic cylinder assembly.
Background technology
The application of skidding oil cylinder is quite varied, the most in some scenarios, when the stroke of oil cylinder is ended, in order to prevent External Force Acting, piston is moved, it is necessary to lock oil cylinder.The lock mode of oil cylinder has two kinds at present: the first is oil circuit locking, i.e. install valve additional and carry out pressurize, make in-oil cylinder hydraulic oil to return in fuel tank, but this protective voltage type be certainly latched in potential safety hazard, as there are the situations such as leakage, piston rod still can slowly cause locking unsuccessfully by return；The second is mechanical self-latching, and conventional mode is to process screw thread in the end of piston rod, and with nut check, this mode can cause piston rod length to increase, and when External Force Acting is bigger, piston rod also can be moved thus affect the effect of locked cylinder.
Existing oil cylinder safety is not ideal enough, and, owing to using for a long time, between the parts of skidding oil cylinder, the inevitable foreign material such as generation abrasive dust, if do not solved, can further increase abrasion, affect service life, and existing skidding oil cylinder is further improved.
Utility model content
In order to solve technical problem present in background technology, the utility model proposes a kind of skidding hydraulic cylinder assembly, using effect is good.
A kind of skidding hydraulic cylinder assembly, including cylinder barrel, piston, piston rod, fairlead, multiple from lock unit, piston, fairlead are placed in cylinder barrel, form rodless cavity between piston and cylinder barrel, and one end of piston rod is connected through fairlead with piston；Cylinder barrel is provided with main hydraulic fluid port, secondary hydraulic fluid port, multiple holding tank, and main hydraulic fluid port connects with rodless cavity, and multiple holding tanks are positioned at the fairlead side near piston, and multiple holding tanks all connect with secondary hydraulic fluid port；Piston is provided with multiple accepting groove, accepting groove being radially arranged along piston, above-mentioned multiple is respectively placed in multiple accepting groove from lock unit, includes spring, steel ball from lock unit, and one end of spring is connected with steel ball, and the other end is fixed；
Steel ball has two kinds of location status, and when steel ball is in primary importance state, steel ball is placed in accepting groove, and spring is in compressive state；When steel ball is in second position state, on steel ball, at least part of region is placed in holding tank, and the volume of the steel ball being placed in holding tank is not more than the half of steel ball overall volume.
Preferably, multiple on the circumference that lock unit, multiple holding tank, multiple accepting groove are uniformly distributed in centered by the centrage of piston.
Preferably, the quantity of above-mentioned main hydraulic fluid port is multiple, and multiple main hydraulic fluid ports are uniformly distributed on the circumference centered by the centrage of piston.
Preferably, the stepped setting of main hydraulic fluid port, from inside to outside, the size of main hydraulic fluid port is gradually reduced.
Preferably, the peripheral side of piston is provided with multiple grade groove.
Preferably, multiple grooves are uniformly distributed.
Preferably, groove is pit or groove.
In this utility model, in rodless cavity, hydraulic oil is injected by main hydraulic fluid port, driving piston moves, and under the effect of spring force, steel ball contacts with the inner surface of cylinder barrel, when piston runs to holding tank position, under the action of the spring, steel ball subregion enters in holding tank, cylinder barrel by steel ball piston applied along piston rod to active force, so by steel ball just it can be avoided that piston rod surprisingly shrinks, it is to avoid the generation of accident；When preparing to shrink piston rod, in secondary hydraulic fluid port, inject hydraulic oil, under the effect of hydraulic oil pressure, the elastic force of steel ball opposing spring, it is pushed in holding tank in accepting groove, this makes it possible to piston rod and shunk.This utility model simple in construction, easy to use, effectively avoid piston rod surprisingly to shrink, using effect is more preferable.
Accompanying drawing explanation
Fig. 1 is the structural representation that the steel ball in this utility model is in primary importance state；
Fig. 2 is the structural representation that the steel ball in this utility model is in second position state；
Fig. 3 is the structural representation after the amplification of the piston in an embodiment of the present utility model；
Fig. 4 is the structural representation after the amplification of the piston in another embodiment of the present utility model.
Detailed description of the invention
It should be noted that in the case of not conflicting, the combination that the embodiment in the application and the feature in embodiment can be mutual；Below with reference to the accompanying drawings and in conjunction with the embodiments to this utility model elaborate.
With reference to Fig. 1-4:
A kind of skidding hydraulic cylinder assembly that the utility model proposes, including cylinder barrel 1, piston 4, piston rod 5, fairlead 6, multiple from lock unit, piston 4, fairlead 6 are placed in cylinder barrel 1, form rodless cavity 7 between piston 4 and cylinder barrel 1, and one end of piston rod 5 is connected through fairlead 6 with piston；Cylinder barrel 1 is provided with main hydraulic fluid port 8, secondary hydraulic fluid port 9, multiple holding tank 10, and main hydraulic fluid port 8 connects with rodless cavity 7, and multiple holding tanks 10 are positioned at the fairlead 6 side near piston 4, and multiple holding tanks 10 all connect with secondary hydraulic fluid port 9；Piston 4 is provided with multiple accepting groove 11, and accepting groove 11 is radially arranged along piston 4, above-mentioned multiple is respectively placed in multiple accepting groove 11 from lock unit, includes spring 2, steel ball 3 from lock unit, and one end of spring 2 is connected with steel ball 3, and the other end is fixed.
Steel ball 3 has two kinds of location status, and when steel ball 3 is in primary importance state, steel ball 3 is placed in accepting groove 11, and spring 2 is in compressive state；When steel ball 3 is in second position state, on steel ball 3, at least part of region is placed in holding tank 10, and the volume of the steel ball 3 being placed in holding tank 10 is not more than the half of steel ball 3 overall volume.
In rodless cavity 7, hydraulic oil is injected by main hydraulic fluid port 8, driving piston moves, under the effect of spring 2 elastic force, steel ball 3 contacts with the inner surface of cylinder barrel 1, when piston runs to holding tank 10 position, under the effect of spring 2, steel ball 3 subregion enters in holding tank 10, piston is applied along the axial active force of piston rod 5 by steel ball 3 by cylinder barrel 1, so by steel ball 3 just it can be avoided that the unexpected contraction of piston rod 5, it is to avoid the generation of accident；When preparing to shrink piston rod 5, injecting hydraulic oil in secondary hydraulic fluid port 9, under the effect of hydraulic oil pressure, the elastic force of spring 2 resisted by steel ball 3, is pushed in accepting groove 11 in holding tank 10, this makes it possible to piston rod 5 and has shunk.The present embodiment simple in construction, easy to use, effectively avoid the unexpected contraction of piston rod 5, using effect is more preferable.
Further, multiple on the circumference that lock unit, multiple holding tank 10, multiple accepting groove 11 are uniformly distributed in centered by the centrage of piston；Cylinder barrel 1 is uniform to the active force of piston by steel ball 3, it is to avoid piston rod 5 tilts, and effect is more preferable.
Further, the quantity of above-mentioned main hydraulic fluid port 8 is multiple, and multiple main hydraulic fluid ports 8 are uniformly distributed on the circumference centered by the centrage of piston 4；Hydraulic oil enters in cylinder barrel 1 from multiple main hydraulic fluid ports 8, and hydraulic oil is uniform to the impulsive force of piston, it is to avoid piston unbalance stress, effectively avoids piston rod 5 to tilt, shake, it is ensured that support effect.
Further, the main stepped setting of hydraulic fluid port 8, from inside to outside, the size of main hydraulic fluid port 8 is gradually reduced；Hydraulic oil is when main hydraulic fluid port 8 enters cylinder barrel 1, and the area of main hydraulic fluid port 8 increases, and hydraulic oil oil prompt drop is low, and then reduces the impact to piston 4, it is to avoid rock, it is ensured that support effect.
Further, the peripheral side of piston 4 is provided with multiple grade groove；During long-time use, the foreign material such as abrasive dust can be produced between the inner surface of piston and cylinder barrel 1, by arranging multiple millimetre-sized groove on piston, grade groove can be as micro-storage pool of hydraulic oil or the nail collection slot of abrasive dust, lubrication or the friction surface for just having started is provided to provide lubrication for contacting between piston with cylinder barrel 1 inwall, accommodate the abrasive dust produced because of boundary lubrication or dry friction, thus reduce abrasion, increase the service life.
Multiple grooves are uniformly distributed, and effect is more preferable.
In one embodiment, groove is pit 1201.
In another embodiment, groove is groove 1202.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive equivalent or change in addition according to the technical solution of the utility model and utility model thereof, all should contain within protection domain of the present utility model.
Claims (7)
1. a skidding hydraulic cylinder assembly, it is characterised in that include cylinder barrel, piston, piston rod, fairlead,
Multiple from lock unit, piston, fairlead are placed in cylinder barrel, form rodless cavity, piston between piston and cylinder barrel
One end of bar is connected through fairlead with piston；Cylinder barrel is provided with main hydraulic fluid port, secondary hydraulic fluid port, multiple holding tank,
Main hydraulic fluid port connects with rodless cavity, and multiple holding tanks are positioned at the fairlead side near piston, and multiple holding tanks are equal
Connect with secondary hydraulic fluid port；Piston is provided with multiple accepting groove, and accepting groove being radially arranged along piston is above-mentioned multiple
It is respectively placed in multiple accepting groove from lock unit, includes spring, steel ball from lock unit, one end of spring and steel
Ball connects, and the other end is fixed；
Steel ball has two kinds of location status, and when steel ball is in primary importance state, steel ball is placed in accepting groove,
Spring is in compressive state；When steel ball is in second position state, on steel ball, at least part of region is placed in appearance
Receive in groove, and the volume of the steel ball being placed in holding tank is not more than the half of steel ball overall volume.
Skidding hydraulic cylinder assembly the most according to claim 1, it is characterised in that multiple from lock unit, many
Individual holding tank, multiple accepting groove are uniformly distributed on the circumference centered by the centrage of piston.
Skidding hydraulic cylinder assembly the most according to claim 1, it is characterised in that the quantity of above-mentioned main hydraulic fluid port
For multiple, multiple main hydraulic fluid ports are uniformly distributed on the circumference centered by the centrage of piston.
Skidding hydraulic cylinder assembly the most according to claim 3, it is characterised in that main hydraulic fluid port is stepped to be set
Putting, from inside to outside, the size of main hydraulic fluid port is gradually reduced.
Skidding hydraulic cylinder assembly the most according to claim 1, it is characterised in that in the peripheral side of piston
It is provided with multiple grade groove.
Skidding hydraulic cylinder assembly the most according to claim 5, it is characterised in that multiple grooves are uniformly distributed.
Skidding hydraulic cylinder assembly the most according to claim 5, it is characterised in that groove is pit or groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421264.9U CN205779994U (en) | 2016-05-11 | 2016-05-11 | A kind of skidding hydraulic cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421264.9U CN205779994U (en) | 2016-05-11 | 2016-05-11 | A kind of skidding hydraulic cylinder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779994U true CN205779994U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620421264.9U Expired - Fee Related CN205779994U (en) | 2016-05-11 | 2016-05-11 | A kind of skidding hydraulic cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397644A (en) * | 2019-08-01 | 2019-11-01 | 邵玉强 | A kind of hydraulic cylinder with retraction position self-locking function |
| US20220205466A1 (en) * | 2020-11-19 | 2022-06-30 | The Boeing Company | Actuator |
-
2016
- 2016-05-11 CN CN201620421264.9U patent/CN205779994U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397644A (en) * | 2019-08-01 | 2019-11-01 | 邵玉强 | A kind of hydraulic cylinder with retraction position self-locking function |
| CN110397644B (en) * | 2019-08-01 | 2020-10-16 | 湖南协力液压有限公司 | Hydraulic cylinder with retraction position self-locking function |
| US20220205466A1 (en) * | 2020-11-19 | 2022-06-30 | The Boeing Company | Actuator |
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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: 20161207 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |