CN2851676Y - Hydraulic cylinder with double work travels - Google Patents
Hydraulic cylinder with double work travels Download PDFInfo
- Publication number
- CN2851676Y CN2851676Y CN 200520139705 CN200520139705U CN2851676Y CN 2851676 Y CN2851676 Y CN 2851676Y CN 200520139705 CN200520139705 CN 200520139705 CN 200520139705 U CN200520139705 U CN 200520139705U CN 2851676 Y CN2851676 Y CN 2851676Y
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- CN
- China
- Prior art keywords
- piston
- auxiliary
- cylinder
- main
- oil
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic cylinder with a double operating stroke, which is composed of a main piston, an auxiliary piston, a piston rod, a main cylinder, an auxiliary cylinder, a hydraulic reversing valve, a guide sleeve, a buffer and an oil tank, wherein the piston rod in the main cylinder penetrates through the guide and the main piston and is connected with the auxiliary piston, the auxiliary piston is connected with the auxiliary cylinder, the auxiliary cylinder is connected with the hydraulic reversing valve, and the hydraulic reversing valve is connected with the oil tank, the main cylinder and a pressure oil inlet; the front end of the piston rod is sheathed with the buffer and is provided with an oil outlet, and the back end is connected with an operating object via a bolt. Due to the utility model adopting the structure, a self hydraulic system of a concrete machine is used, and an additional device is not needed; when a main machine is in normal operation, an oil cylinder is in a short-stroke operating state, when the object operated by the oil cylinder needs to be maintained, the oil cylinder is made in a long-stroke state; an operating device can be conveniently locked in a preset position; the use is simple and easily feasible, and the operation is reliable.
Description
Technical field
The utility model relates to a kind of working hydraulic pressure oil cylinder of concreting machinery.
Background technique
The working stroke of common oil cylinder is changeless, protruding or when inwardly bouncing back to the oil cylinder dead point when the oil cylinder piston bar, the object that oil cylinder acted on (weight, equipment etc.) can only rest on two fixed positions, can't change, oil cylinder is single working stroke, during work such as the object that oil cylinder acted on needs to be serviced, very inconvenient, can not satisfy because of applying working condition simultaneously according to main frame, use under certain special use condition can not be satisfied object that oil cylinder acts on and rest on four duplexs on the different working positions and make the stroke needs, can not give full play to the effect of working stroke hydraulic jack.
Summary of the invention
The purpose of this utility model provides a kind of object that makes things convenient for oil cylinder to act on and safeguards, can rest on the duplex of giving full play to the oil cylinder effect on four different operating positions and make the stroke hydraulic oil cylinder.
The purpose of this utility model is achieved in that by main piston, auxiliary piston, piston rod, master cylinder tube, auxiliary cylinder barrel, hydraulicdirectional control valve, guide sleeve, buffer, fuel tank to be formed, piston rod in the master cylinder tube passes guide sleeve and is connected auxiliary piston with main piston, auxiliary piston connects auxiliary cylinder barrel, auxiliary cylinder barrel connects hydraulicdirectional control valve, hydraulicdirectional control valve connects fuel tank, master cylinder tube and pressure oil filler opening, the front end of piston rod is with buffer and oil outlet is arranged, and the rear end is by bolt interconnect function object.
Because the utility model adopts said structure, utilized the hydraulic system of concreting machinery self, do not need additional device, when the main frame proper functioning, oil cylinder is in the short stroke working state, when object that oil cylinder acted on such as needs to be serviced at work, oil cylinder is placed long stroke working state, can easily equipment be locked in predefined position, simple, reliable operation.
Description of drawings
Accompanying drawing is the utility model embodiment's a structural drawing.
1 hydraulicdirectional control valve, 2 auxiliary cylinder barrels, 3 auxiliary pistons, 4 main pistons, 5 piston rods, 6 master cylinder tubes, 7 guide sleeves, 8 buffers, 9 bolts, 10 fuel tanks, 11 pressure oil filler openings, 12 oil outlets among the figure.
Embodiment
Embodiment: this installs by main piston 4, auxiliary piston 3, piston rod 5, master cylinder tube 6, auxiliary cylinder barrel 2, hydraulicdirectional control valve 1, guide sleeve 7, buffer 8, fuel tank 10 is formed, piston rod 5 in the master cylinder tube 6 passes guide sleeve 7 and is connected auxiliary piston 3 with main piston 4, auxiliary piston 3 connects auxiliary cylinder barrel 2, auxiliary cylinder barrel 2 connects hydraulicdirectional control valve 1, hydraulicdirectional control valve 1 connects fuel tank 10, master cylinder tube 6 and pressure oil filler opening 11, the front end of piston rod 5 is with buffer 8 and oil outlet 12 (from then on mouth enters another hydraulic actuator) is arranged, and the rear end is by bolt 9 interconnect function objects.
Hydraulicdirectional control valve 1 has two kinds of working positions, when it is in a kind of working position, utilize the different characteristics of main piston 4 front and back pressure, hydraulic oil acts on the auxiliary piston 3 by hydraulicdirectional control valve 1 with very big pressure, under the effect of buffer 8, thereby make auxiliary piston 3 slowly move to the dead point, thereby oil cylinder is in the short stroke state; When hydraulicdirectional control valve 1 is in another kind of working position, to assist cylinder barrel 2 internal pressures to reduce to 0, therefore auxiliary piston 3 slowly is retracted into original position, thereby oil cylinder is in long stroke state, when object that oil cylinder acted on such as needs to be serviced at work, can easily equipment be locked in predefined position, simple, reliable operation.
Claims (1)
1, a kind of duplex is made the stroke hydraulic oil cylinder, form by main piston, auxiliary piston, piston rod, master cylinder tube, auxiliary cylinder barrel, hydraulicdirectional control valve, guide sleeve, buffer, fuel tank, it is characterized in that: the piston rod in the master cylinder tube passes guide sleeve and is connected auxiliary piston with main piston, auxiliary piston connects auxiliary cylinder barrel, auxiliary cylinder barrel connects hydraulicdirectional control valve, hydraulicdirectional control valve connects fuel tank, master cylinder tube and pressure oil filler opening, the front end of piston rod is with buffer and oil outlet is arranged, and the rear end is by bolt interconnect function object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139705 CN2851676Y (en) | 2005-12-09 | 2005-12-09 | Hydraulic cylinder with double work travels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139705 CN2851676Y (en) | 2005-12-09 | 2005-12-09 | Hydraulic cylinder with double work travels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851676Y true CN2851676Y (en) | 2006-12-27 |
Family
ID=37585633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520139705 Expired - Fee Related CN2851676Y (en) | 2005-12-09 | 2005-12-09 | Hydraulic cylinder with double work travels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851676Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776053A (en) * | 2010-03-16 | 2010-07-14 | 三一重工股份有限公司 | Concrete pumping structure |
| CN102392842A (en) * | 2011-10-27 | 2012-03-28 | 中联重科股份有限公司 | Crusher, hydraulic control system and hydraulic cylinder |
| CN102407257A (en) * | 2010-05-03 | 2012-04-11 | 许勒压力机两合公司 | Hydraulic cylinder for a hydraulic die cushion |
| CN104100595A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Combined type threaded self-locking hydraulic oil cylinder |
| CN104100596A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Combined-type self-locking-ratchet hydraulic oil cylinder |
| WO2015192602A1 (en) * | 2014-06-18 | 2015-12-23 | 国家电网公司 | Hydraulic operating mechanism for high pressure switch and hydraulic working cylinder thereof |
| CN105526157A (en) * | 2015-12-14 | 2016-04-27 | 湖南三一路面机械有限公司 | Concrete piston connecting device and pumping system |
-
2005
- 2005-12-09 CN CN 200520139705 patent/CN2851676Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776053A (en) * | 2010-03-16 | 2010-07-14 | 三一重工股份有限公司 | Concrete pumping structure |
| CN101776053B (en) * | 2010-03-16 | 2012-09-05 | 三一重工股份有限公司 | Concrete pumping structure |
| CN102407257A (en) * | 2010-05-03 | 2012-04-11 | 许勒压力机两合公司 | Hydraulic cylinder for a hydraulic die cushion |
| CN102392842A (en) * | 2011-10-27 | 2012-03-28 | 中联重科股份有限公司 | Crusher, hydraulic control system and hydraulic cylinder |
| WO2015192602A1 (en) * | 2014-06-18 | 2015-12-23 | 国家电网公司 | Hydraulic operating mechanism for high pressure switch and hydraulic working cylinder thereof |
| CN104100595A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Combined type threaded self-locking hydraulic oil cylinder |
| CN104100596A (en) * | 2014-07-06 | 2014-10-15 | 上海宏信设备工程有限公司 | Combined-type self-locking-ratchet hydraulic oil cylinder |
| CN105526157A (en) * | 2015-12-14 | 2016-04-27 | 湖南三一路面机械有限公司 | Concrete piston connecting device and pumping system |
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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: XCMG CONSTRUCTION MACHINERY CO., LTD.CONSTRUCTION Free format text: FORMER OWNER: XUZHOU HEAVY MACHINERY CO., LTD. Effective date: 20100607 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 221000 NO.165, TONGSHAN ROAD, XUZHOU CITY, JIANGSU PROVINCE TO: 221004 NO.19, TAOSHAN ROAD, ECONOMIC DEVELOPMENT ZONE, XUZHOU CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100607 Address after: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee after: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. Address before: 221000 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG SCHWING MACHINERY CO., LTD. Free format text: FORMER OWNER: BUILDING MACHINERY CO., LTD., XCMG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20130515 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130515 Address after: 221004 No. 29, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: XCMG Schwing Machinery Co., Ltd. Address before: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |