CN108190781A - A kind of high-precision is intermittently welded formula hydraulic jack - Google Patents
A kind of high-precision is intermittently welded formula hydraulic jack Download PDFInfo
- Publication number
- CN108190781A CN108190781A CN201711262077.6A CN201711262077A CN108190781A CN 108190781 A CN108190781 A CN 108190781A CN 201711262077 A CN201711262077 A CN 201711262077A CN 108190781 A CN108190781 A CN 108190781A
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- seal guide
- cylinder
- hydraulic jack
- trim ring
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 5
- 239000006071 cream Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005493 welding type Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Abstract
A kind of high-precision is intermittently welded formula hydraulic jack, including pedestal, housing, oil cylinder, piston component, oil pump component, seal guide sleeve, trim ring and guide sleeve；The lower end of oil cylinder and housing is respectively welded on pedestal in corresponding groove, and seal guide sleeve is nested on the annular convex platform of cylinder upper end, and is passed through pad and positioned cylinder upper end, is welded together on the outside of seal guide sleeve with outer set upper side；Guide sleeve is mounted on by trim ring sealing ring and trim ring between seal guide sleeve and piston component.The present invention is compared with prior art, since cylinder upper end does not weld directly with housing, but use intermittent type welding (spot welding) that seal guide sleeve is located in cylinder upper end, then seal guide sleeve and outer set upper side are welded, so as to avoid cylinder wall temperature distortion, the wall thickness of oil cylinder can be reduced, moreover it is possible to ensure its machining accuracy, tilting load ability is jacked so as to improve it, effectively mitigates the own wt of jack.
Description
Technical field
The invention belongs to machinery equipment field, it particularly relates to which a kind of high-precision is intermittently welded formula hydraulic jack.
Background technology
Hydraulic drive be using liquid as working media, using liquid pressure energy carry out energy transmission and control one
Gate technique.Hydraulic drive has many advantages, is widely used in the necks such as machinery, building, metallurgical, chemical industry and aerospace
Domain.
Hydraulic jack is a kind of small simple lifting equipment of lifting height, it be mainly used for vehicle maintenance lifting,
The work such as support.Its light structure is firm, and flexibly convenient, operation can be completed in one.Jack be by the use of rigid top lift part as
Equipment jacks the light and small lifting equipment of weight by top bracket or bottom claw in small stroke, be divided into it is mechanical and
Two kinds of fluid pressure type.Mechanical jack is because its lifting weight is small, and operation is laborious, therefore is not suitable for vehicle maintenance, and fluid pressure type
Jack structure is compact, stable working, and lifting weight is big, and has auto-lock function, therefore is widely used in vehicle maintenance field.
Hydraulic jack is generally mainly made of following component：Shoe cream room, buffering oil pocket, working oil chamber, asphalt channel, check valve
And piston；Shoe cream room is connect by asphalt channel with buffering oil pocket, and buffering oil pocket is connect by asphalt channel with working oil chamber, is stored up
There are one check valve A on asphalt channel between oil pocket and buffering oil pocket so that and liquid can only flow to buffering oil pocket from shoe cream room,
Check valve B there are one buffering on the asphalt channel between oil pocket and working oil chamber so that liquid can only flow to work from buffering oil pocket
Make oil pocket, for piston in working oil chamber, liquid is lifted piston to jack weight.Its operation principle is：With air pump or piston
Mechanism makes fuel reserve tank form negative pressure, and check valve A is opened at this time, and check valve B is closed, and liquid flows into buffering oil pocket from shoe cream room；Again
Making to form positive pressure inside baffle-box, check valve B is opened at this time, and check valve A is closed, and liquid flows into working oil chamber from buffering oil pocket,
Liquid is lifted piston in working oil chamber, you can jacking weight.
The utility model patent that number of patent application is 97237859.6 discloses a kind of this " full welding type hand hydraulic jack
Top " (as shown in Figure 1), the technical solution of the utility model are：Housing, oil cylinder, the pump housing are respectively welded on pedestal, on oil cylinder
End and outer set upper side weld together, and the jack is made to become full welded type single piece.Although the program solves threaded connection
The problem of easily loosening deformation and oil leak, but its cylinder upper end and outer set upper side are using full welding technique, i.e. cylinder upper end
A body is all welded as with housing, this not only need increase oil cylinder wall thickness, but also easily lead to cylinder upper end by
Thermal deformation so as to reduce precision, increases the gap between cylinder wall and piston component, it is caused to jack tilting load ability drop
It is low.
Invention content
To solve the problems in background technology, the present invention provides a kind of high-precisions to be intermittently welded formula hydraulic jack.
The technical scheme is that：A kind of high-precision is intermittently welded formula hydraulic jack, including pedestal, housing, oil cylinder,
Piston component, oil pump component, seal guide sleeve, trim ring and guide sleeve；The lower end of oil cylinder and housing is respectively welded on pedestal accordingly
Groove in, seal guide sleeve nested encryptions pass through several pads and position cylinder upper end in cylinder upper end, sealing be oriented to
Set welds together with outer set upper side；Seal guide sleeve upper end is equipped with internal thread；Piston component is located in oil cylinder, and the upper end is from oil
It is stretched out in cylinder and in the endoporus of trim ring, trim ring is in the sleeve shaped of both ends open, and outer rim is equipped with annular convex platform, passes through
The external screw thread of lower end is connected on seal guide sleeve；Guide sleeve is mounted on seal guide sleeve and piston by trim ring sealing ring and trim ring
Between component.
Preferably, cylinder upper end is equipped with annular convex platform, and seal guide sleeve nested encryptions are on the annular convex platform of cylinder upper end.
Preferably, the annular convex platform of trim ring is equipped with the hole being inserted into for spanner.
Preferably, it at the nested encryptions of the cylinder upper end and seal guide sleeve, is uniformly distributed there are four pad.
Preferably, it at the nested encryptions of the cylinder upper end and seal guide sleeve, is additionally provided with to fix cylinder upper end
Connecting pin.
Preferably, weld together on the outside of seal guide sleeve with outer set upper side.
By adopting the above-described technical solution, compared with prior art, cylinder upper end of the invention is not straight with housing
Welding is connect, but uses intermittent type welding (spot welding) that seal guide sleeve is located in cylinder upper end, and fixed by connecting pin, so
Seal guide sleeve and outer set upper side are welded afterwards, so as to avoid cylinder wall temperature distortion, the wall thickness of oil cylinder can be reduced, moreover it is possible to
Ensure its processing and assembly precision, jack tilting load ability so as to improve it, effectively mitigate the own wt of jack.
Description of the drawings
Fig. 1 is the structure diagram of existing full welding type jack；
Fig. 2 is the structure diagram of the present invention.
Specific embodiment
Embodiment
As shown in Fig. 2, a kind of high-precision is intermittently welded formula hydraulic jack, including pedestal 1, housing 2, oil cylinder 3, piston group
Part 4, oil pump component 5, seal guide sleeve 6, trim ring 7 and guide sleeve 8.The lower end of oil cylinder 3 and housing 2 is respectively welded at phase on pedestal 1
In the groove answered, 3 upper end of oil cylinder is equipped with annular convex platform, and seal guide sleeve 6 is nested on the annular convex platform of 3 upper end of oil cylinder, and is led to
It crosses four uniformly distributed pads to position 3 upper end of oil cylinder, 6 outside of seal guide sleeve welds together with 2 upper end of housing.Sealing is led
Internal thread is equipped with to 6 upper ends of set.Piston component 4 is located in oil cylinder 3, and the upper end is stretched out out of oil cylinder 3 and positioned at the endoporus of trim ring 7
In, trim ring 7 is in the sleeve shaped of both ends open, and outer rim is equipped with annular convex platform, and the annular convex platform of trim ring is equipped with to be inserted for spanner
The hole entered is connected to by the external screw thread of lower end on seal guide sleeve 6.Guide sleeve 8 is installed by trim ring sealing ring 9 and trim ring 7
Between seal guide sleeve 6 and piston component 4.At the nested encryptions of 3 upper end of oil cylinder and seal guide sleeve 6, it is additionally provided with and is used for
The connecting pin 10 of fixed 3 upper end of oil cylinder.
The present invention is not limited to above-mentioned preferred embodiment, and anyone should learn that is made under the enlightenment of the present invention
Structure change, it is every with it is of the invention have it is same or similar as technical solution, all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of high-precision is intermittently welded formula hydraulic jack, it is characterised in that：Including pedestal, housing, oil cylinder, piston component,
Oil pump component, seal guide sleeve, trim ring and guide sleeve；The lower end of oil cylinder and housing is respectively welded on pedestal in corresponding groove,
Seal guide sleeve nested encryptions pass through several pads and position cylinder upper end in cylinder upper end, seal guide sleeve and housing
Upper end welds together；Seal guide sleeve upper end is equipped with internal thread；Piston component is located in oil cylinder, and the upper end is stretched out out of oil cylinder
And in the endoporus of trim ring, trim ring is in the sleeve shaped of both ends open, and outer rim is equipped with annular convex platform, passes through the outer of lower end
It is threaded on seal guide sleeve；Guide sleeve by trim ring sealing ring and trim ring be mounted on seal guide sleeve and piston component it
Between.
2. high-precision according to claim 1 is intermittently welded formula hydraulic jack, it is characterised in that：Cylinder upper end is equipped with ring
Shape boss, seal guide sleeve nested encryptions are on the annular convex platform of cylinder upper end.
3. high-precision according to claim 1 or 2 is intermittently welded formula hydraulic jack, it is characterised in that：The annular of trim ring
Boss is equipped with the hole being inserted into for spanner.
4. high-precision according to claim 1 or 2 is intermittently welded formula hydraulic jack, it is characterised in that：On the oil cylinder
End is at the nested encryptions of seal guide sleeve, being uniformly distributed that there are four pads.
5. high-precision according to claim 3 is intermittently welded formula hydraulic jack, it is characterised in that：The cylinder upper end with
At the nested encryptions of seal guide sleeve, it is uniformly distributed there are four pad.
6. the high-precision according to claim 1-5 is intermittently welded formula hydraulic jack, it is characterised in that：The cylinder upper end
At the nested encryptions of seal guide sleeve, it is additionally provided with the connecting pin for fixing cylinder upper end.
7. the high-precision according to claim 1-6 is intermittently welded formula hydraulic jack, it is characterised in that：Outside seal guide sleeve
Side welds together with outer set upper side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016112073093 | 2016-12-23 | ||
| CN201611207309 | 2016-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108190781A true CN108190781A (en) | 2018-06-22 |
Family
ID=62573562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711262077.6A Pending CN108190781A (en) | 2016-12-23 | 2017-12-04 | A kind of high-precision is intermittently welded formula hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108190781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093703A (en) * | 2020-10-13 | 2020-12-18 | 衡阳市雄焱工具有限公司 | Two-stage hydraulic jack |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3006278U (en) * | 1994-03-07 | 1995-01-24 | 一成 河野 | Electric jack |
| CN2313912Y (en) * | 1997-09-29 | 1999-04-14 | 黄海 | Welded two-slage hydraulic jack |
| CN2313913Y (en) * | 1997-10-13 | 1999-04-14 | 黄海 | Wholly welded manpower hydraulic jack |
| JP2000289993A (en) * | 1999-04-07 | 2000-10-17 | Wako Kogyo Kk | Screw jack for vehicle |
| CN2712880Y (en) * | 2004-08-07 | 2005-07-27 | 开封科英预应力锚具厂 | Double acting through type jack |
| CN200940084Y (en) * | 2006-07-10 | 2007-08-29 | 常熟通润汽车零部件有限公司 | Two speed, hydraulic and vertical jack |
| CN202017623U (en) * | 2010-12-06 | 2011-10-26 | 太原矿山机器润滑液压设备有限公司 | An emulsion pump high pressure plunger seal cylinder sleeve component enabling automatic compensation |
| CN102633203A (en) * | 2012-04-20 | 2012-08-15 | 常熟通润汽车零部件股份有限公司 | Piston rod sealing device of hydraulic jack |
| CN202465172U (en) * | 2012-03-07 | 2012-10-03 | 郑州煤机综机设备有限公司 | Cylinder installing jack |
| CN202829445U (en) * | 2012-10-15 | 2013-03-27 | 吴英杰 | Pneumatic and manual dual-purpose tripod airplane jack |
| CN103274328A (en) * | 2013-06-03 | 2013-09-04 | 常熟市藕渠针织机械厂 | Hydraulic tool with floating ram |
| CN203476890U (en) * | 2013-08-20 | 2014-03-12 | 黄石市高潮工矿机械有限公司 | Hydraulic oil cylinder for three-roller plate bending machine |
| CN203667903U (en) * | 2013-11-21 | 2014-06-25 | 浙江亿鹏机械有限公司 | Efficient seal self-locking type oil jack |
| CN204342349U (en) * | 2014-12-23 | 2015-05-20 | 常熟通润汽车零部件股份有限公司 | A kind of hydraulic jack |
| CN204755471U (en) * | 2015-06-26 | 2015-11-11 | 湖州市银鑫轧辊有限公司 | Plunger case seal structure |
| CN208234447U (en) * | 2016-12-23 | 2018-12-14 | 衡阳市锦泰工具有限公司 | A kind of high-precision is intermittently welded formula hydraulic jack |
-
2017
- 2017-12-04 CN CN201711262077.6A patent/CN108190781A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3006278U (en) * | 1994-03-07 | 1995-01-24 | 一成 河野 | Electric jack |
| CN2313912Y (en) * | 1997-09-29 | 1999-04-14 | 黄海 | Welded two-slage hydraulic jack |
| CN2313913Y (en) * | 1997-10-13 | 1999-04-14 | 黄海 | Wholly welded manpower hydraulic jack |
| JP2000289993A (en) * | 1999-04-07 | 2000-10-17 | Wako Kogyo Kk | Screw jack for vehicle |
| CN2712880Y (en) * | 2004-08-07 | 2005-07-27 | 开封科英预应力锚具厂 | Double acting through type jack |
| CN200940084Y (en) * | 2006-07-10 | 2007-08-29 | 常熟通润汽车零部件有限公司 | Two speed, hydraulic and vertical jack |
| CN202017623U (en) * | 2010-12-06 | 2011-10-26 | 太原矿山机器润滑液压设备有限公司 | An emulsion pump high pressure plunger seal cylinder sleeve component enabling automatic compensation |
| CN202465172U (en) * | 2012-03-07 | 2012-10-03 | 郑州煤机综机设备有限公司 | Cylinder installing jack |
| CN102633203A (en) * | 2012-04-20 | 2012-08-15 | 常熟通润汽车零部件股份有限公司 | Piston rod sealing device of hydraulic jack |
| CN202829445U (en) * | 2012-10-15 | 2013-03-27 | 吴英杰 | Pneumatic and manual dual-purpose tripod airplane jack |
| CN103274328A (en) * | 2013-06-03 | 2013-09-04 | 常熟市藕渠针织机械厂 | Hydraulic tool with floating ram |
| CN203476890U (en) * | 2013-08-20 | 2014-03-12 | 黄石市高潮工矿机械有限公司 | Hydraulic oil cylinder for three-roller plate bending machine |
| CN203667903U (en) * | 2013-11-21 | 2014-06-25 | 浙江亿鹏机械有限公司 | Efficient seal self-locking type oil jack |
| CN204342349U (en) * | 2014-12-23 | 2015-05-20 | 常熟通润汽车零部件股份有限公司 | A kind of hydraulic jack |
| CN204755471U (en) * | 2015-06-26 | 2015-11-11 | 湖州市银鑫轧辊有限公司 | Plunger case seal structure |
| CN208234447U (en) * | 2016-12-23 | 2018-12-14 | 衡阳市锦泰工具有限公司 | A kind of high-precision is intermittently welded formula hydraulic jack |
Non-Patent Citations (1)
| Title |
|---|
| 杜国华, 北京：机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093703A (en) * | 2020-10-13 | 2020-12-18 | 衡阳市雄焱工具有限公司 | Two-stage hydraulic jack |
| CN112093703B (en) * | 2020-10-13 | 2021-12-24 | 衡阳市雄焱工具有限公司 | Two-stage hydraulic jack |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |