CN2649838Y - Single-cylinder dual-rod hydraulic cylinder - Google Patents
Single-cylinder dual-rod hydraulic cylinder Download PDFInfo
- Publication number
- CN2649838Y CN2649838Y CN 200320110441 CN200320110441U CN2649838Y CN 2649838 Y CN2649838 Y CN 2649838Y CN 200320110441 CN200320110441 CN 200320110441 CN 200320110441 U CN200320110441 U CN 200320110441U CN 2649838 Y CN2649838 Y CN 2649838Y
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- oil cylinder
- cylinder
- piston
- bar
- cylinder piston
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- Expired - Fee Related
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Abstract
The utility model relates to a hydro cylinder of single cylinder and double bars, which is mainly used in hydraulic mechanical synchronizing system and includes a cylinder body 8, a cylinder piston 6, and a cylinder piston rod 7, wherein the cylinder piston 6 is arranged in the cylinder body 8 and is connected with the cylinder piston rod 7, which is characterized in that the number of the cylinder piston rod 7 is two, which are arranged in axial parallel. The utility model adopts double cylinder piston rods, the large pushing force of which not only solves the problem of using large hydro cylinder in a small space, but also solves the synchronizing problems of the cylinder and prevents the cylinder piston rod from bending or breaking.
Description
Technical field:
The utility model relates to a kind of hydraulic jack.Particularly relate to the two bar hydraulic jacks of a kind of monotubular.Be mainly used in the synchro system of hydraulic machinery.
Background technique:
In many workplaces, often increase the cylinder diameter and the piston rod bar footpath of oil hydraulic cylinder along with the increase of hydraulic thrust.Only increase cylinder diameter and do not increase the bar footpath, elongated piston rod is owing to stressed too big, and crooked easily or fracture.Like this, in the occasion of the big hydraulic coupling of needs, because the restriction of workpiece or installation dimension often needs two or more oil hydraulic cylinders to meet the demands.The equipment volume that produces like this is often very big, not only is not easy to solve the stationary problem of oil cylinder, and manufacture cost is also than higher.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned deficiency, provides the monotubular that big, the required installing space of a kind of thrust is little, synchronism is good again two bar hydraulic jacks.
The purpose of this utility model is achieved in that the two bar hydraulic jacks of a kind of monotubular, comprise cylinder block, oil cylinder piston and oil cylinder piston bar, oil cylinder piston places in the cylinder block, links to each other with the oil cylinder piston bar, be characterized in that the oil cylinder piston bar has two, axially flat raft setting.
The utility model adopts double piston-rod thrust big, has not only solved the problem of using big hydraulic jack in very little space effectively, and has solved the stationary problem of oil cylinder, and piston rod also is not easy bending or fracture.
Description of drawings:
Fig. 1 is a general structure schematic representation of the present utility model.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is that the B of Fig. 1 is to view.
Embodiment:
As Fig. 1～3, the utility model is the two bar hydraulic jacks of a kind of monotubular.Mainly by cylinder block 8, oil cylinder bonnet 3, oil har opening with snap ring 2, oil cylinder after back-up ring 1, oil cylinder piston 6, oil cylinder piston bar 7, oil cylinder axle form with snap ring 4, oil cylinder snap ring cap 5, oil cylinder guide sleeve 10 and oil cylinder piston bar backstop 11 etc.Oil cylinder bonnet 3 lid places cylinder block 8 rear ends, and back-up ring radially is embedded between the internal face of the outer wall of oil cylinder bonnet 3 and cylinder block 8 behind the oil cylinder, and oil har opening axially is embedded at behind oil cylinder bonnet 3 rear end step surfaces and the oil cylinder between back-up ring 1 front end step surface with snap ring 2.Oil cylinder piston 6 places in the cylinder block 8, oil cylinder double piston-rod 7 has two, flat raft is inserted in the oil cylinder piston 6, oil cylinder piston bar 7 ends of oil cylinder piston 6 rear ends are nested with oil cylinder axle snap ring 4, the oil cylinder axle is nested with oil cylinder snap ring cap 5 outward with snap ring 4, and with screw snap ring cap 5 is fixedlyed connected with oil cylinder piston 6 ear end faces.Oil cylinder piston bar backstop 11 is installed on oil cylinder piston 6 ear end faces on oil cylinder snap ring cap 5 both sides.Oil cylinder guide sleeve 10 is embedded at cylinder block 8 front ends, and is placed on the oil cylinder double piston-rod 7.Hydraulic fluid port 9 is opened on cylinder block 8 front faces before the oil cylinder, and hydraulic fluid port 11 axially is opened on the oil cylinder bonnet 3 behind the oil cylinder.Hydraulic oil enters the oil cylinder back cavity from the back hydraulic fluid port 11 of oil cylinder, and the piston and the double piston-rod that promote oil cylinder move forward.During backhaul, hydraulic oil enters the ante-chamber of oil cylinder from the preceding hydraulic fluid port 9 of oil cylinder, and piston drives the double piston-rod backhaul.
Claims (6)
1, the two bar hydraulic jacks of a kind of monotubular, comprise cylinder block (8), oil cylinder piston (6) and oil cylinder piston bar (7), oil cylinder piston (6) places in the cylinder block (8), links to each other with oil cylinder piston bar (7), it is characterized in that oil cylinder piston bar (7) has two, axially flat raft setting.
2, the two bar hydraulic jacks of a kind of monotubular according to claim 1, oil cylinder double piston-rod (7) end that it is characterized in that oil cylinder piston (6) rear end is nested with oil cylinder axle snap ring (4), the oil cylinder axle is nested with oil cylinder snap ring cap (5) with snap ring (4) is outer, and with screw oil cylinder snap ring cap (5) is fixedlyed connected with oil cylinder piston (6) ear end face.
3, the two bar hydraulic jacks of a kind of monotubular according to claim 2 is characterized in that device has oil cylinder piston bar backstop (11) on oil cylinder piston (6) ear end face on oil cylinder snap ring cap (5) both sides.
4, the two bar hydraulic jacks of a kind of monotubular according to claim 1 and 2 is characterized in that cylinder block (8) front end sets oil cylinder guide sleeve (10), and oil cylinder guide sleeve (10) is placed on the double piston-rod (7).
5, the two bar hydraulic jacks of a kind of monotubular according to claim 1 and 2, it is characterized in that cylinder block (8) rear end cover puts oil cylinder bonnet (3), radially set back-up ring (1) behind the oil cylinder between the internal face of the outer wall of oil cylinder bonnet (3) and cylinder block (8), axially set oil har opening behind oil cylinder bonnet (3) rear end step surface and the oil cylinder between back-up ring (1) front end step surface with snap ring (2).
6, the two bar hydraulic jacks of a kind of monotubular according to claim 5 is characterized in that the preceding hydraulic fluid port (9) of oil cylinder is opened on cylinder block (8) front face, and hydraulic fluid port behind the oil cylinder (12) axially is opened on the oil cylinder bonnet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110441 CN2649838Y (en) | 2003-10-28 | 2003-10-28 | Single-cylinder dual-rod hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110441 CN2649838Y (en) | 2003-10-28 | 2003-10-28 | Single-cylinder dual-rod hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649838Y true CN2649838Y (en) | 2004-10-20 |
Family
ID=34343700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110441 Expired - Fee Related CN2649838Y (en) | 2003-10-28 | 2003-10-28 | Single-cylinder dual-rod hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649838Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400974A (en) * | 2011-11-10 | 2012-04-04 | 常州市腾田液压机械有限公司 | Cylinder-positioning two-stage adjustable thrust hydraulic cylinder device |
| CN103410805A (en) * | 2013-08-26 | 2013-11-27 | 嘉兴新中南汽车零部件有限公司 | Floating one-way double-rod air cylinder |
| CN105240342A (en) * | 2015-11-18 | 2016-01-13 | 柳州双吉机械有限公司 | Double-action telescopic multi-stage oil cylinder |
| CN109737113A (en) * | 2019-04-03 | 2019-05-10 | 中国航发长春控制科技有限公司 | A kind of hydraulic cylinder end cover locking structure |
-
2003
- 2003-10-28 CN CN 200320110441 patent/CN2649838Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400974A (en) * | 2011-11-10 | 2012-04-04 | 常州市腾田液压机械有限公司 | Cylinder-positioning two-stage adjustable thrust hydraulic cylinder device |
| CN103410805A (en) * | 2013-08-26 | 2013-11-27 | 嘉兴新中南汽车零部件有限公司 | Floating one-way double-rod air cylinder |
| CN103410805B (en) * | 2013-08-26 | 2015-10-28 | 嘉兴新中南汽车零部件有限公司 | Floating type unidirectional pair of bar cylinder |
| CN105240342A (en) * | 2015-11-18 | 2016-01-13 | 柳州双吉机械有限公司 | Double-action telescopic multi-stage oil cylinder |
| CN109737113A (en) * | 2019-04-03 | 2019-05-10 | 中国航发长春控制科技有限公司 | A kind of hydraulic cylinder end cover locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HUA HONG TECHNOLOGY CO. Free format text: FORMER OWNER: JIANGYIN HUAHONG HYDRAULI TECHNOLOGY INST. Effective date: 20071109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071109 Address after: 214423 Huahong Industrial Park, Zhouzhuang Town, Jiangyin, Jiangsu Patentee after: Huahong Science and Technology Co., Ltd., Jiangsu Address before: 214423 Jiangsu Province, Jiangyin City Industrial Park, Zhouzhuang town Huahong building Patentee before: Jiangyin Huahong Hydrauli Technology Inst. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 Termination date: 20091130 |