CN105822620B - A kind of stroke limit oil cylinder of very heavy very useful with groove - Google Patents
A kind of stroke limit oil cylinder of very heavy very useful with groove Download PDFInfo
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- CN105822620B CN105822620B CN201510005827.6A CN201510005827A CN105822620B CN 105822620 B CN105822620 B CN 105822620B CN 201510005827 A CN201510005827 A CN 201510005827A CN 105822620 B CN105822620 B CN 105822620B
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- piston rod
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Abstract
The invention discloses a kind of stroke limit oil cylinders of very heavy very useful with groove, including oil cylinder, piston rod, piston ring, sealing ring, first O-ring, second O-ring, washer, shaft block ring, baffle ring, elastic spring, groove and oil outlet, the piston rod is installed in oil cylinder, shaft block ring, washer, first O-ring, sealing ring and piston ring are installed on the front end of piston rod successively, the end of piston rod is sequentially installed with baffle ring, second O-ring, baffle ring and elastic spring, the front end of the oil cylinder offers oil inlet, groove and oil outlet are provided on oil cylinder inner wall, groove is located at the inside of oil cylinder, oil outlet is connected by groove with the external world, the oil outlet includes oil discharge passage successively from the inside to the outside, dashpot and overflow launder.The present invention can disperse around oil outlet suffered pressure, and sealing ring not cracky, the service life of sealing ring is longer, reduces maintenance cost.
Description
Technical field
The present invention relates to the technical field of oil cylinder, especially a kind of technology of the stroke limit oil cylinder of very heavy very useful with groove
Field.
Background technology
Jack is a kind of simplest lifting equipment that lifting height is small, uses rigidity top lift part as equipment, leads to
It crosses top bracket or bottom claw jacks the light and small lifting equipment of weight in stroke.Jack is divided to mechanical and fluid pressure type two
Kind, jack is mainly used for the departments such as factories and miness, communications and transportation as the work such as Mechanical Help and other liftings, support, structure
Light and handy firm, flexibility and reliability, a people can carry and operate.Jack usually requires certain limiting device to it when in use
Range carries out limit control, prevents damage of jack, and traditional locating oil cylinder, which is positioned against on cylinder wall directly to spile, to be come
Position-limiting action is played, what oil was directly discharged from aperture, the pressure around aperture is relatively large, be easy to cause sealing ring breakage, because
This requirement to sealing ring is high, and the service life of sealing ring is shorter, and maintenance cost is higher.
Invention content
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of stroke limit of very heavy very useful with groove
Oil cylinder, can disperse around oil outlet suffered pressure, and sealing ring not cracky, the service life of sealing ring is longer, reduces
Maintenance cost.
To achieve the above object, the present invention proposes a kind of stroke limit oil cylinder of very heavy very useful with groove, including oil cylinder,
Piston rod, piston ring, sealing ring, the first O-ring, the second O-ring, washer, shaft block ring, baffle ring, elastic spring, groove and go out
Oilhole, the piston rod are installed in oil cylinder, and shaft block ring, washer, the first O-ring, sealing ring and piston ring are installed on successively
The front end of piston rod, the end of piston rod are sequentially installed with baffle ring, the second O-ring, baffle ring and elastic spring, before the oil cylinder
End offers oil inlet, is provided with groove and oil outlet on oil cylinder inner wall, and groove is located at the inside of oil cylinder, oil outlet by groove and
The external world is connected, and the oil outlet includes oil discharge passage, dashpot and overflow launder successively from the inside to the outside.
Preferably, the piston rod front end is equipped with the first hierarchic structure, piston ring is installed in the first hierarchic structure, the
One ladder architecture front-side is equipped with the second hierarchic structure, and washer is installed in the second hierarchic structure, and the second ladder architecture front-side is equipped with
Third hierarchic structure, shaft block ring are installed in third hierarchic structure.
Preferably, the cross section of the groove is three-dimensional-structure, groove inside dimensions are more than groove side dimension.
Preferably, the oil discharge passage is connected with groove, the dashpot inside dimensions are less than ruler on the outside of dashpot
Very little, overflow launder is cylindrical hole, a diameter of 0.3~0.4mm, a diameter of 4mm of overflow launder in the oil channel.
Preferably, the end of the oil cylinder is equipped with annular groove, baffle ring, the 2nd O successively from front to back in the annular groove
Type circle, baffle ring and elastic spring.
Beneficial effects of the present invention：The present invention plays thousand using processing groove on oil cylinder with the method that oil outlet is combined
The position-limiting action of the maximum functional position on jin top, when piston rod reaches maximum functional position, sealing ring crosses groove, to liquid
Pressure oil is flowed out by oil outlet again from groove, therefore plays the role of limit, and product has most when unloaded and volume carries after installation is complete
The function of the limit of big position, groove can disperse suffered pressure around oil outlet, and cracky, sealing ring do not make sealing ring
With lasting a long time, maintenance cost, and the position limiting structure long lifespan are reduced.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of main view sectional view of the stroke limit oil cylinder of very heavy very useful with groove of the present invention；
Fig. 2 is the portions A enlarged drawing in Fig. 1；
Fig. 3 is the portions B enlarged drawing in Fig. 1.
【Specific implementation mode】
Refering to fig. 1, Fig. 2, Fig. 3, a kind of stroke limit oil cylinder of very heavy very useful with groove of the present invention, including oil cylinder 1, piston
Bar 2, piston ring 6, sealing ring 7, the first O-ring 8, the second O-ring 4, washer 9, shaft block ring 10, baffle ring 3, elastic spring 5, ditch
Slot 11 and oil outlet 12, the piston rod 2 are installed in oil cylinder 1, shaft block ring 10, washer 9, the first O-ring 8,7 and of sealing ring
Piston ring 6 is installed on the front end of piston rod 2 successively, and the end of piston rod 2 is sequentially installed with baffle ring 3, the second O-ring 4, baffle ring 3
Oil inlet 13 is offered with the front end of elastic spring 5, the oil cylinder 1, groove 11 and oil outlet 12, ditch are provided on 1 inner wall of oil cylinder
Slot 11 is located at the inside of oil cylinder 1, and oil outlet 12 is connected by groove 11 with the external world, and the oil outlet 12 wraps successively from the inside to the outside
Include oil discharge passage 14, dashpot 15 and overflow launder 16.
2 front end of the piston rod is equipped with the first hierarchic structure 21, and piston ring 6 is installed in the first hierarchic structure 21, and first
21 front side of hierarchic structure is equipped with the second hierarchic structure 22, and washer 9 is installed in the second hierarchic structure 22, before the second hierarchic structure 22
Side is equipped with third hierarchic structure 23, and shaft block ring 10 is installed in third hierarchic structure 23, and the cross section of the groove 11 is body
Type structure, 11 inside dimensions of groove are more than 11 side dimension of groove, and the oil discharge passage 14 is connected with groove 11, the buffering
15 inside dimensions of slot are less than 15 side dimension of dashpot, and overflow launder 16 is cylindrical hole, and the end of the oil cylinder 1 is equipped with annular
Slot 17, baffle ring 3, the second O-ring 4, baffle ring 3 and elastic spring 5 successively from front to back in the annular groove 17.
The course of work of the present invention：
A kind of stroke limit oil cylinder of very heavy very useful with groove of the present invention during the work time, by 1 inner wall of oil cylinder
Processing groove 11 plays the position-limiting action of the maximum functional position of jack with the method that oil outlet 12 is combined, and works as piston rod
When 2 arrival maximum functional position, sealing ring 7 crosses groove 11, to which hydraulic oil is flowed out by oil outlet 12 again from groove 11, therefore
Play the role of limit, product has the function of the limit of maximum position after installation is complete when unloaded and volume carries, and groove 11 can
Disperse suffered pressure around oil outlet 12, the not cracky of sealing ring 7, the service life of sealing ring 7 is longer, reduce maintenance at
This, and the position limiting structure long lifespan, the first O-ring 8 play the role of the support of washer 9 to rise, the second O-ring 4 plays sealing function,
Elastic spring 5 plays fixed baffle ring, and baffle ring 3 play the guiding role.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme all belong to the scope of protection of the present invention.
Claims (1)
1. the stroke limit oil cylinder of very heavy very useful with groove, it is characterised in that：Including oil cylinder (1), piston rod (2), piston (6),
Sealing ring (7), the first O-ring (8), the second O-ring (4), washer (9), shaft block ring (10), baffle ring (3), elastic spring (5),
Groove (11) and oil outlet (12), the piston rod (2) are installed in oil cylinder (1), shaft block ring (10), washer (9), the first O
Type circle (8), sealing ring (7) and piston ring (6) are installed on the front end of piston rod (2) successively, and the end of piston rod (2) is installed successively
There are baffle ring (3), the second O-ring (4), baffle ring (3) and elastic spring (5), the front end of the oil cylinder (1) to offer oil inlet
(13), it is provided with groove (11) and oil outlet (12) on oil cylinder (1) inner wall, groove (11) is located at the inside of oil cylinder (1), oil outlet
(12) it is connected with the external world by groove (11), the oil outlet (12) includes oil discharge passage (14), buffering successively from the inside to the outside
Slot (15) and overflow launder (16)；Piston rod (2) front end is equipped with the first hierarchic structure (21), and piston ring (6) is installed on first
In hierarchic structure (21), the second hierarchic structure (22) is equipped on front side of the first hierarchic structure (21), washer (9) is installed on the second ladder
In structure (22), third hierarchic structure (23) is equipped on front side of the second hierarchic structure (22), shaft block ring (10) is installed on third rank
On terraced structure (23)；The cross section of the groove (11) is three-dimensional-structure, and groove (11) inside dimensions are more than on the outside of groove (11)
Size；The oil discharge passage (14) is connected with groove (11), and dashpot (15) inside dimensions are less than dashpot (15) outside
Side size, overflow launder (16) are cylindrical hole, make a diameter of 0.3~0.4mm of the oily channel (14), overflow launder (16) into
A diameter of 4mm；The end of the oil cylinder (1) is equipped with annular groove (17), baffle ring successively from front to back in the annular groove (17)
(3), the second O-ring (4), baffle ring (3) and elastic spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005827.6A CN105822620B (en) | 2015-01-07 | 2015-01-07 | A kind of stroke limit oil cylinder of very heavy very useful with groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005827.6A CN105822620B (en) | 2015-01-07 | 2015-01-07 | A kind of stroke limit oil cylinder of very heavy very useful with groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822620A CN105822620A (en) | 2016-08-03 |
| CN105822620B true CN105822620B (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510005827.6A Active CN105822620B (en) | 2015-01-07 | 2015-01-07 | A kind of stroke limit oil cylinder of very heavy very useful with groove |
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| Country | Link |
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| CN (1) | CN105822620B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151163A (en) * | 2016-08-22 | 2016-11-23 | 新乡市华航航空液压设备有限公司 | A kind of hold down gag of short guide piston automatic compensation sealing |
| CN106945324B (en) * | 2017-04-27 | 2018-09-18 | 平湖市通力机械有限公司 | A kind of high-mechanic gate-type forcing press |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297114A (en) * | 1999-11-22 | 2001-05-30 | 速睦喜股份有限公司 | Two-stroke cylinder |
| CN101769277A (en) * | 2008-12-29 | 2010-07-07 | 佛山市顺德区沃德人造板制造有限公司 | Hydraulic oil cylinder |
| CN201687803U (en) * | 2010-04-15 | 2010-12-29 | 麦士德福科技(深圳)有限公司 | Hydraulic oil cylinder with adjustable valve needle stroke |
| CN202468524U (en) * | 2012-01-05 | 2012-10-03 | 莱州兴达液压机械有限公司 | Safety oil cylinder |
| CN202628675U (en) * | 2012-05-17 | 2012-12-26 | 龙工(上海)液压有限公司 | Limit structure of hydrocylinder with large cylinder diameter |
| CN102927078A (en) * | 2012-10-31 | 2013-02-13 | 三一重工股份有限公司 | Hydraulic oil cylinder and pumping mechanism and engineering machinery comprising same |
| CN203095517U (en) * | 2013-02-28 | 2013-07-31 | 富阳通力机械制造有限公司 | Jack stroke limit device |
| CN103470571A (en) * | 2013-09-29 | 2013-12-25 | 合肥长源液压股份有限公司 | Stroke and mounting distance-adjustable oil cylinder |
| CN103851026A (en) * | 2012-11-30 | 2014-06-11 | 无锡市协新气动有限公司 | Porous buffer of hydraulic cylinder |
-
2015
- 2015-01-07 CN CN201510005827.6A patent/CN105822620B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297114A (en) * | 1999-11-22 | 2001-05-30 | 速睦喜股份有限公司 | Two-stroke cylinder |
| CN101769277A (en) * | 2008-12-29 | 2010-07-07 | 佛山市顺德区沃德人造板制造有限公司 | Hydraulic oil cylinder |
| CN201687803U (en) * | 2010-04-15 | 2010-12-29 | 麦士德福科技(深圳)有限公司 | Hydraulic oil cylinder with adjustable valve needle stroke |
| CN202468524U (en) * | 2012-01-05 | 2012-10-03 | 莱州兴达液压机械有限公司 | Safety oil cylinder |
| CN202628675U (en) * | 2012-05-17 | 2012-12-26 | 龙工(上海)液压有限公司 | Limit structure of hydrocylinder with large cylinder diameter |
| CN102927078A (en) * | 2012-10-31 | 2013-02-13 | 三一重工股份有限公司 | Hydraulic oil cylinder and pumping mechanism and engineering machinery comprising same |
| CN103851026A (en) * | 2012-11-30 | 2014-06-11 | 无锡市协新气动有限公司 | Porous buffer of hydraulic cylinder |
| CN203095517U (en) * | 2013-02-28 | 2013-07-31 | 富阳通力机械制造有限公司 | Jack stroke limit device |
| CN103470571A (en) * | 2013-09-29 | 2013-12-25 | 合肥长源液压股份有限公司 | Stroke and mounting distance-adjustable oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105822620A (en) | 2016-08-03 |
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