CN107061412A - Telescopic oil cylinder - Google Patents
Telescopic oil cylinder Download PDFInfo
- Publication number
- CN107061412A CN107061412A CN201710213076.6A CN201710213076A CN107061412A CN 107061412 A CN107061412 A CN 107061412A CN 201710213076 A CN201710213076 A CN 201710213076A CN 107061412 A CN107061412 A CN 107061412A
- Authority
- CN
- China
- Prior art keywords
- oil
- piston
- oil inlet
- cylinder barrel
- inlet pipe
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of telescopic oil cylinder, including cylinder barrel, piston is set in the cylinder barrel, cylinder barrel one end sets the first oil inlet, cylinder barrel another side wall sets the second oil inlet, and internal piston is hollow, and internal piston is provided with an oil inlet pipe, piston side sets the 3rd oil inlet, and piston tail sets oil-out.During oil cylinder stretches out and bounces back, hydraulic oil is successively from the oil inlet pipe of internal piston, oil inlet pipe and piston clearance oil-feed, realize binary channels oil-feed, simplify the quantity of oil pipe, simultaneously because connection is reduced needed for oil pipe, the chance of oil leak is substantially reduced, and improves the stability of oil circuit, and the simplification of structure also causes maintenance work more convenient.
Description
Technical field
The present invention relates to a kind of telescopic oil cylinder.
Background technology
The oil-feed of common oil cylinder typically only has oil-feed mode all the way, a certain amount of hydraulic oil is poured into wherein, by being pumped into
Air realizes stretching and the retraction of multi-level piston, because oil circuit only has all the way in this course with releasing air, it is therefore desirable to
Relevant quantity it is more, and hydraulic oil easily spills, and oil piping system is unstable.
The content of the invention
The present invention relates to a kind of telescopic oil cylinder, oil pipe quantity can be simplified, oil circuit stability is improved.
To realize this purpose, structure of the present invention is：In a kind of telescopic oil cylinder, including cylinder barrel, the cylinder barrel
A piston is inserted, the piston is, provided with an oil inlet pipe, to exist between piston and oil inlet pipe in boring structure, piston
Damping sealing ring is cased with the outside of gap, the end of one end that the piston is stretched into cylinder barrel, with cylinder of the damping sealing ring with one end
Cylinder end is provided with the first oil inlet, and the first oil inlet is connected with oil inlet pipe, and the another side wall of cylinder barrel is provided with the second oil inlet,
Piston side wall on rear side of damping sealing ring is provided with the 3rd oil inlet, during piston maximum stretching state, the 3rd oil inlet and second
Oil inlet is connected, and oil-out, oil-out connection oil inlet pipe, oil-feed are provided with the pistons end side wall of second oil inlet the same side
The gap of pipe and piston.
Its advantage is：During oil cylinder stretches out and bounces back, hydraulic oil successively from the oil inlet pipe of internal piston, enter
Oil pipe and piston clearance oil-feed, realize binary channels oil-feed, simplify the quantity of oil pipe, simultaneously because connection is reduced needed for oil pipe,
The chance of oil leak is substantially reduced, and improves the stability of oil circuit, and the simplification of structure also causes maintenance work more square
Just it is quick.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is sectional structure chart of the present invention；
Fig. 2 is that the one-level stretches out schematic diagram；
Fig. 3 is two grades of stretchings schematic diagram；
Fig. 4 is that the one-level shrinks schematic diagram；
Fig. 5 is two grades of contractions schematic diagram.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically is chatted
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
A piece piston 2 of insertion, the piston 2 in a kind of telescopic oil cylinder as shown in Figure 1, including cylinder barrel 1, the cylinder barrel 1
For boring structure, piston 2 is interior to be provided with an oil inlet pipe 7, there is gap between piston 2 and oil inlet pipe 7, the piston 2 is stretched
Damping sealing ring is cased with the outside of the end for entering one end in cylinder barrel 1, first is provided with the end of cylinder barrel 1 of one end with damping sealing ring
Oil inlet 3, the first oil inlet 3 is connected with oil inlet pipe 7, and the another side wall of cylinder barrel 1 is provided with the second oil inlet 4, damping sealing
The side wall of piston 2 on rear side of ring is provided with the 3rd oil inlet 6, during the maximum stretching state of piston 2, the 3rd oil inlet 6 and the second oil-feed
Mouth 4 is connected, and oil-out 5 is provided with the end sidewalls of piston 2 of the same side of the second oil inlet 4, and oil-out 5 connects oil inlet pipe 7, entered
The gap of oil pipe 7 and piston 2.
Telescopic oil cylinder described in this case is two grades of telescopic sections 9, and another oil cylinder that telescopic oil cylinder is connected is one-level pars contractilis
Points 8, the operation principle of one-level telescopic section 8 and two grades of telescopic sections 9 is as follows, as shown in Fig. 2 oil pump passes through the first oil inlet 3
The delivery hydraulic pressure oil into oil inlet pipe 7, hydraulic oil enters one-level telescopic section 8 by oil-out 5, and the pressure of hydraulic oil input makes one-level
The piston rod of telescopic section 8 stretches out, and realizes that one-level is stretched out.As shown in figure 3, when the piston rod of one-level telescopic section 8 is fully extended,
It is full of in the oil inlet pipe 7 of two grades of telescopic sections 9 after hydraulic oil, continues the damping sealing of hydraulic oil promotion piston 2 end inputted
Ring makes piston 2 promote and fully extended, realizes two grades of stretchings.As shown in figure 4, the 3rd oil inlet 6 and of two grades of telescopic sections 9
After two oil inlets 4 are docked and connected, oiling is carried out to the gap of piston 2 and oil inlet pipe 7, hydraulic oil enters one-level by oil-out 5
Telescopic section 8, makes piston rod bounce back its piston rod backstepping, realizes that one-level bounces back.As shown in figure 5, continuing oiling, when one-level is stretched
After the piston rod of contracting part 8 is fully retracted, the oil for continuing to inject promotes damping sealing annulus piston 2 in two grades of telescopic sections 9
Retraction, realize two grades of retractions.
Because the oil inlet pipe 7 added in piston 2 realizes binary channels oil-feed mode, the quantity of oil circuit is enormously simplify, is subtracted
The connector of oil circuit is lacked, while oil is also substantially being sealed in two grades of telescopic sections 9, therefore reduce the chance of oil leak, significantly
The stability of oil circuit is improved, and the structure simplified also makes maintenance section more convenient.
The invention is not limited in foregoing embodiment.The present invention, which is expanded to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (1)
1. a kind of telescopic oil cylinder, including cylinder barrel（1）, it is characterised in that the cylinder barrel（1）A piece piston of interior insertion（2）, the work
Plug（2）For boring structure, piston（2）Inside it is provided with an oil inlet pipe（7）, piston（2）With oil inlet pipe（7）Between exist between
Gap, the piston（2）Stretch into cylinder barrel（1）Damping sealing ring is cased with the outside of the end of interior one end, with the same one end of damping sealing ring
Cylinder barrel（1）End is provided with the first oil inlet（3）, the first oil inlet（3）With oil inlet pipe（7）Connection, cylinder barrel（1）Another side
Wall is provided with the second oil inlet（4）, the piston on rear side of damping sealing ring（2）Side wall is provided with the 3rd oil inlet（6）, piston（2）
During maximum stretching state, the 3rd oil inlet（6）With the second oil inlet（4）Connection, with the second oil inlet（4）The piston of the same side
（2）End sidewalls are provided with oil-out（5）, oil-out（5）Connect oil inlet pipe（7）, oil inlet pipe（7）With piston（2）Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213076.6A CN107061412A (en) | 2017-04-01 | 2017-04-01 | Telescopic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213076.6A CN107061412A (en) | 2017-04-01 | 2017-04-01 | Telescopic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061412A true CN107061412A (en) | 2017-08-18 |
Family
ID=59601494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710213076.6A Pending CN107061412A (en) | 2017-04-01 | 2017-04-01 | Telescopic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561368A (en) * | 2018-06-01 | 2018-09-21 | 江苏恒立液压股份有限公司 | Lift arm oil cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963239A (en) * | 2006-12-07 | 2007-05-16 | 三一重工股份有限公司 | Cylinder set for use in retraction mechanism |
| CN202391858U (en) * | 2011-11-22 | 2012-08-22 | 江苏龙城洪力液压设备有限公司 | Double-stage duel-purpose hydraulic cylinder |
| CN202646228U (en) * | 2012-05-24 | 2013-01-02 | 合肥神马科技集团有限公司 | Oil cylinder structure, telescopic arm with oil cylinder and crane |
| CN103758818A (en) * | 2014-01-20 | 2014-04-30 | 山东弘发兴凯实业有限公司 | Multistage sleeve-type reverse-sequence telescopic hydraulic cylinder |
| CN103939412A (en) * | 2014-05-05 | 2014-07-23 | 湘潭大学 | Rubbish transfer station compression oil cylinder and hydraulic control device of rubbish transfer station compression oil cylinder |
| CN206608400U (en) * | 2017-04-01 | 2017-11-03 | 江苏高德液压机械有限公司 | Telescopic oil cylinder |
-
2017
- 2017-04-01 CN CN201710213076.6A patent/CN107061412A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963239A (en) * | 2006-12-07 | 2007-05-16 | 三一重工股份有限公司 | Cylinder set for use in retraction mechanism |
| CN202391858U (en) * | 2011-11-22 | 2012-08-22 | 江苏龙城洪力液压设备有限公司 | Double-stage duel-purpose hydraulic cylinder |
| CN202646228U (en) * | 2012-05-24 | 2013-01-02 | 合肥神马科技集团有限公司 | Oil cylinder structure, telescopic arm with oil cylinder and crane |
| CN103758818A (en) * | 2014-01-20 | 2014-04-30 | 山东弘发兴凯实业有限公司 | Multistage sleeve-type reverse-sequence telescopic hydraulic cylinder |
| CN103939412A (en) * | 2014-05-05 | 2014-07-23 | 湘潭大学 | Rubbish transfer station compression oil cylinder and hydraulic control device of rubbish transfer station compression oil cylinder |
| CN206608400U (en) * | 2017-04-01 | 2017-11-03 | 江苏高德液压机械有限公司 | Telescopic oil cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561368A (en) * | 2018-06-01 | 2018-09-21 | 江苏恒立液压股份有限公司 | Lift arm oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
|
| RJ01 | Rejection of invention patent application after publication |