CN105805080A - Oil cylinder - Google Patents
Oil cylinder Download PDFInfo
- Publication number
- CN105805080A CN105805080A CN201610337708.5A CN201610337708A CN105805080A CN 105805080 A CN105805080 A CN 105805080A CN 201610337708 A CN201610337708 A CN 201610337708A CN 105805080 A CN105805080 A CN 105805080A
- Authority
- CN
- China
- Prior art keywords
- ring flange
- piston
- oil
- cylinder
- flange
- 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.)
- Granted
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
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- 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
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses an oil cylinder. The oil cylinder comprises a piston rod, a first flange, oil ways, a cylinder block, an annular push body, a piston, a cylindrical push body, a groove and a second flange, wherein the piston is arranged inside the cylinder block, the first flange is arranged at one end of the cylinder block, the second flange is arranged at the other end of the cylinder block, one end of the piston rod is connected with one end of the piston by the aid of a fixing device, the piston rod penetrates through the center of the first flange and extends out of the first flange, two oil ways for communicating the inside of the cylinder block with the outside of the cylinder block are arranged inside the first flange, and two oil ways for communicating the inside of the cylinder block with the outside of the cylinder block are arranged inside the second flange. The oil cylinder can effectively prevent the piston from being damaged due to long-time uneven stress, plays a buffering role and can effectively prevent the piston from hitting the flanges.
Description
Technical field
The present invention relates to oil cylinder technical field, be specially a kind of oil cylinder.
Background technology
Oil cylinder and hydraulic cylinder, hydraulic cylinder is the linear motion type executive component that the pressure reduction on power output and piston effective area and both sides thereof is directly proportional.
At present, a kind of structure of relatively simple oil cylinder it include cylinder block, piston it is provided with in cylinder block, the two ends, left and right of cylinder block are respectively arranged with left flange plate and right ring flange, the right side of piston is connected to piston rod, piston rod stretches out outside cylinder block through right ring flange, left flange plate offers left oil circuit, right ring flange offers right oil circuit, two oil circuits are used for connecting oil pump, by the oil pressure of ejection in oil pump, promote piston rod movement, but, owing to two oil circuits are all disposed within a direction, and the center of the center of oil circuit and piston is not in the same horizontal line, make piston discontinuity, now, stress between surface and the cylinder body contact surface of piston also can be different, cause that its frictional force is different, piston can be damaged for a long time.
Additionally, move reciprocatingly in the piston inner cylinder cylinder body of tradition oil cylinder, when oil cylinder rapid operation and stroke arrive critical, piston can clash into the ring flange at cylinder block two ends and contact, and the words piston of life-time service may damage so that the service life of oil cylinder is relatively low.Therefore seeking one makes piston and ring flange will not produce to clash into, and piston is damaged from, it is ensured that the cushion cylinder in oil cylinder service life is particularly important.
Summary of the invention
It is an object of the invention to provide a kind of oil cylinder, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of oil cylinder, including piston rod, first ring flange, oil duct, cylinder body, annular pushes away body, piston, cylindricality pushes away body, groove and the second ring flange, piston described in one it is provided with in described cylinder body, one end of described cylinder body is provided with the first ring flange described in, the other end of described cylinder body is provided with the second ring flange described in, one end of described piston rod connects one end of described piston by fixing device, described piston rod runs through the centre of described first ring flange, and extend to the outside of the first ring flange, the inside of described first ring flange is provided with two for connecting the described oil duct outside described cylinder interior and cylinder body, the inside of described second ring flange is provided with two for connecting the described oil duct outside described cylinder interior and cylinder body.
Preferably, the middle part of described first ring flange and described second ring flange is provided with groove described in, described piston is provided with cylindricality described in the one end being positioned at described second ring flange and pushes away body, the other end of described piston is provided with annular described in and pushes away body, described annular pushes away body and pushes away the outer dia of body less than described inside grooves diameter 0.2-0.5 and unit with described cylindricality, and its length is less than 0.5 unit of the degree of depth of described groove.
Preferably, the central point of two oil pipes being arranged on described first ring flange is identical to the distance of described first ring flange central point, and be located on the same line, the central point of two oil pipes being arranged on described second ring flange is identical to the distance of described second ring flange central point, and is located on the same line.
Preferably, the centrage of described piston rod and the centrage of described piston are located on the same line.
Compared with prior art, the invention has the beneficial effects as follows: a kind of oil cylinder, by arranging the oil duct of symmetry in the first ring flange and the second ring flange, the oil pressure having by oneself in hydraulic pump is made to act on piston uniformly, and then make the stress between the surface of piston and cylinder body contact surface identical, make frictional force between the same, can effectively prevent the generation of the damage phenomenon that piston causes because of long-time discontinuity, simultaneously, by arranging groove, cylinder pushes away body and annular pushes away body, when piston movement to two ends, push away cognition and enter groove, now, owing to there is fluid the larger in size of groove and inside, the fluid of inside grooves is outwards extruded under the effect pushing away body, and the space extruded is less, play the effect of a buffering, can effectively prevent piston slap ring flange.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure: 1, piston rod, 2, the first ring flange, 3, oil duct, 4, cylinder body, 5, annular pushes away body, 6, piston, 7, cylindricality push away body, 8, groove, 9, the second ring flange.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1，The present invention provides a kind of technical scheme: a kind of oil cylinder，Including piston rod 1、First ring flange 2、Oil duct 3、Cylinder body 4、Annular pushes away body 5、Piston 6、Cylindricality pushes away body 7、Groove 8 and the second ring flange 9，It is provided with piston 6 described in described cylinder body 4，One end of described cylinder body 4 is provided with the first ring flange 2 described in，The other end of described cylinder body 4 is provided with the second ring flange 9 described in，One end of described piston rod 1 connects one end of described piston 6 by fixing device，Described piston rod 1 runs through the centre of described first ring flange 2，And extend to the outside of the first ring flange 2，The inside of described first ring flange 2 is provided with two for connecting the described oil duct 3 outside described cylinder body 4 inside and cylinder body 4，The inside of described second ring flange 9 is provided with two for connecting the described oil duct 3 outside described cylinder body 4 inside and cylinder body 4.
The middle part of described first ring flange 2 and described second ring flange 9 is provided with groove 8 described in, described piston 6 is provided with cylindricality described in the one end being positioned at described second ring flange 9 and pushes away body 7, the other end of described piston 6 is provided with annular described in and pushes away body 5, described annular pushes away body 5 and pushes away the outer dia of body 7 less than described groove 8 inside diameter 0.2-0.5 and unit with described cylindricality, and its length is less than 0.5 unit of the degree of depth of described groove 8；The central point of two oil pipes 3 being arranged on described first ring flange 2 is identical to the distance of described first ring flange 2 central point, and be located on the same line, the central point of two oil pipes 3 being arranged on described second ring flange 9 is identical to the distance of described second ring flange 9 central point, and is located on the same line；The centrage of described piston rod 1 and the centrage of described piston 6 are located on the same line.
Specifically used mode: in present invention work, by arranging the oil duct of symmetry in the first ring flange and the second ring flange, the oil pressure having by oneself in hydraulic pump is made to act on piston uniformly, and then make the stress between the surface of piston and cylinder body contact surface identical, make frictional force between the same, can effectively prevent the generation of the damage phenomenon that piston causes because of long-time discontinuity, simultaneously, by arranging groove, cylinder pushes away body and annular pushes away body, when piston movement to two ends, push away cognition and enter groove, now, owing to there is fluid the larger in size of groove and inside, the fluid of inside grooves is outwards extruded under the effect pushing away body, and the space extruded is less, play the effect of a buffering, can effectively prevent piston slap ring flange.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in the present invention.Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
- null1. an oil cylinder，Including piston rod (1)、First ring flange (2)、Oil duct (3)、Cylinder body (4)、Annular pushes away body (5)、Piston (6)、Cylindricality pushes away body (7)、Groove (8) and the second ring flange (9)，It is characterized in that: in described cylinder body (4), be provided with piston described in (6)，One end of described cylinder body (4) is provided with the first ring flange (2) described in，The other end of described cylinder body (4) is provided with the second ring flange (9) described in，One end of described piston rod (1) connects one end of described piston (6) by fixing device，Described piston rod (1) runs through the centre of described first ring flange (2)，And extend to the outside of the first ring flange (2)，The inside of described first ring flange (2) is provided with two for connecting the described oil duct (3) that described cylinder body (4) is internal and cylinder body (4) is outside，The inside of described second ring flange (9) is provided with two for connecting the described oil duct (3) that described cylinder body (4) is internal and cylinder body (4) is outside.
- 2. a kind of oil cylinder according to claim 1, it is characterized in that: the middle part of described first ring flange (2) and described second ring flange (9) is provided with groove described in (8), described piston (6) is provided with cylindricality described in the one end being positioned at described second ring flange (9) and pushes away body (7), the other end of described piston (6) is provided with annular described in and pushes away body (5), described annular pushes away body (5) and pushes away the outer dia of body (7) less than described groove (8) inside diameter 0.2-0.5 and unit with described cylindricality, and its length is less than 0.5 unit of the degree of depth of described groove (8).
- 3. a kind of oil cylinder according to claim 1, it is characterized in that: the central point of two oil pipes (3) being arranged on described first ring flange (2) is identical to the distance of described first ring flange (2) central point, and be located on the same line, the central point of two oil pipes (3) being arranged on described second ring flange (9) is identical to the distance of described second ring flange (9) central point, and is located on the same line.
- 4. a kind of oil cylinder according to claim 1, it is characterised in that: the centrage of described piston rod (1) and the centrage of described piston (6) are located on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337708.5A CN105805080B (en) | 2016-05-22 | 2016-05-22 | A kind of oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337708.5A CN105805080B (en) | 2016-05-22 | 2016-05-22 | A kind of oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105805080A true CN105805080A (en) | 2016-07-27 |
| CN105805080B CN105805080B (en) | 2017-11-07 |
Family
ID=56451993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610337708.5A Active CN105805080B (en) | 2016-05-22 | 2016-05-22 | A kind of oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805080B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048120A (en) * | 2021-04-15 | 2021-06-29 | 南京工业职业技术大学 | Industrial double-acting air cylinder |
| CN113503287A (en) * | 2021-07-01 | 2021-10-15 | 燕山大学 | Double-cylinder barrel symmetric double-piston hydraulic cylinder without cylinder cover |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05180205A (en) * | 1991-12-27 | 1993-07-20 | Hazama Gumi Ltd | Hydraulic cylinder with fixation device |
| EP1508696A1 (en) * | 2003-08-14 | 2005-02-23 | Pfeiffer Vacuum GmbH | Sealing arrangement for a cylinder-piston system |
| CN101365886A (en) * | 2007-01-12 | 2009-02-11 | 费斯托股份有限两合公司 | Fluid operated linear unit, especially linear driving apparatus |
| CN201209546Y (en) * | 2008-07-01 | 2009-03-18 | 陈人德 | Single pump piston type double-acting air-pumping device for air compressor |
| CN101806295A (en) * | 2010-04-22 | 2010-08-18 | 陈人德 | Piston-type reciprocating double-action single-cylinder pumping device of vacuum pump |
| CN201661440U (en) * | 2010-04-22 | 2010-12-01 | 陈人德 | Piston-type reciprocating double-acting single-cylinder air extracting device of vacuum pump |
| CN101985914A (en) * | 2010-12-01 | 2011-03-16 | 常州液压成套设备厂有限公司 | Hydraulic servomotor for hydroelectric generating set |
| CN105041776A (en) * | 2015-08-29 | 2015-11-11 | 济南大学 | Hydraulic cylinder with equal-percent-type starting characteristic |
| CN205779996U (en) * | 2016-05-22 | 2016-12-07 | 蚌埠智达科技咨询有限公司 | A kind of oil cylinder |
-
2016
- 2016-05-22 CN CN201610337708.5A patent/CN105805080B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05180205A (en) * | 1991-12-27 | 1993-07-20 | Hazama Gumi Ltd | Hydraulic cylinder with fixation device |
| EP1508696A1 (en) * | 2003-08-14 | 2005-02-23 | Pfeiffer Vacuum GmbH | Sealing arrangement for a cylinder-piston system |
| CN101365886A (en) * | 2007-01-12 | 2009-02-11 | 费斯托股份有限两合公司 | Fluid operated linear unit, especially linear driving apparatus |
| CN201209546Y (en) * | 2008-07-01 | 2009-03-18 | 陈人德 | Single pump piston type double-acting air-pumping device for air compressor |
| CN101806295A (en) * | 2010-04-22 | 2010-08-18 | 陈人德 | Piston-type reciprocating double-action single-cylinder pumping device of vacuum pump |
| CN201661440U (en) * | 2010-04-22 | 2010-12-01 | 陈人德 | Piston-type reciprocating double-acting single-cylinder air extracting device of vacuum pump |
| CN101985914A (en) * | 2010-12-01 | 2011-03-16 | 常州液压成套设备厂有限公司 | Hydraulic servomotor for hydroelectric generating set |
| CN105041776A (en) * | 2015-08-29 | 2015-11-11 | 济南大学 | Hydraulic cylinder with equal-percent-type starting characteristic |
| CN205779996U (en) * | 2016-05-22 | 2016-12-07 | 蚌埠智达科技咨询有限公司 | A kind of oil cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048120A (en) * | 2021-04-15 | 2021-06-29 | 南京工业职业技术大学 | Industrial double-acting air cylinder |
| CN113503287A (en) * | 2021-07-01 | 2021-10-15 | 燕山大学 | Double-cylinder barrel symmetric double-piston hydraulic cylinder without cylinder cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105805080B (en) | 2017-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108265847B (en) | Piston type particle damper | |
| CN205779996U (en) | A kind of oil cylinder | |
| CN103133435B (en) | A kind of hydraulic accumulator | |
| CN105805080A (en) | Oil cylinder | |
| CN103089898A (en) | Viscous damper with variable cross-section trapezoidal thread groove | |
| BR0111450A (en) | Actuator having dual piston surfaces | |
| JP2013204799A5 (en) | ||
| CN104564905A (en) | Three-stage telescopic oil cylinder | |
| US10670049B2 (en) | Fluid pressure cylinder | |
| CN204387004U (en) | A kind of three grades of telescopic oil cylinders | |
| CN110107644A (en) | A kind of stable type auxiliary device for precision machined good damping result | |
| CN104879398A (en) | Fast oil releasing structure for hydraulic clutch | |
| CN107401575A (en) | A kind of air spring piston | |
| CN203321937U (en) | Buffer oil cylinder | |
| CN205841147U (en) | A kind of air compressor piston | |
| CN206889386U (en) | A kind of hydraulic cylinder sealing device | |
| CN105513885A (en) | Internal guiding structure, corrugated pipe assembly and vacuum arc extinguishing chamber | |
| CN211501449U (en) | High-stability adjustable buffer for industrial 4.0 | |
| CN102269271A (en) | Sealing structure of hydraulic cylinder | |
| CN212690499U (en) | Double-stroke hydraulic driving mechanism | |
| CN217421696U (en) | Piston sealing structure for hydraulic cylinder | |
| CN203756631U (en) | Hydraulic cylinder capable of reducing liquid compression influences | |
| CN204436940U (en) | A kind of oil hydraulic cylinder variable throttling damping mechanism | |
| CN204200747U (en) | A kind of cylinder | |
| CN207406567U (en) | A kind of hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191122 Address after: 225200 Wu Jian Industrial Zone, Jiangdu District, Jiangsu, Yangzhou Patentee after: JIANGSU KAIJIE MACHINERY MANUFACTURING CO., LTD. Address before: Wuhe County 233300 Anhui city of Bengbu province Huaihe road general merchandise company commercial building East Second Patentee before: BENGBU ZHIDA TECHNOLOGY CONSULTING CO., LTD. |