CN204625035U - A kind of telescoping mechanism saving arm for hoisting crane four - Google Patents
A kind of telescoping mechanism saving arm for hoisting crane four Download PDFInfo
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- CN204625035U CN204625035U CN201520356815.3U CN201520356815U CN204625035U CN 204625035 U CN204625035 U CN 204625035U CN 201520356815 U CN201520356815 U CN 201520356815U CN 204625035 U CN204625035 U CN 204625035U
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- oil cylinder
- telescopic oil
- arm
- hoisting crane
- hinged
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Abstract
The utility model discloses a kind of telescoping mechanism saving arm for hoisting crane four, comprise three telescopic oil cylinders; The cylinder barrel of the first telescopic oil cylinder and the piston rod of the second telescopic oil cylinder hinged; The cylinder barrel of the second telescopic oil cylinder and the piston rod of the 3rd telescopic oil cylinder hinged; It is hinged that the piston rod of described first telescopic oil cylinder and of hoisting crane saves arm one end; It is hinged that the piston rod of described second telescopic oil cylinder and two of hoisting crane saves arm one end; It is hinged that the described piston rod of the 3rd telescopic oil cylinder and three of hoisting crane save arm one end; It is hinged that the described cylinder barrel of the 3rd telescopic oil cylinder and four of hoisting crane save arm one end.The utility model can expand telescopic boom run with load ability to greatest extent, improves the operating efficiency of hoisting crane.
Description
Technical field
The utility model relates to a kind of telescoping mechanism saving arm for hoisting crane four.
Background technology
It is oil cylinder+steel rope row structure that existing crane arm four saves arm telescoping mechanism, and four joint arms share a telescopic oil cylinder, and four joint arms can only simultaneous retractable, and cause telescopic boom run with load ability low, crane job efficiency is low.
Summary of the invention
Technical problem to be solved in the utility model is, not enough for prior art, provides a kind of telescoping mechanism saving arm for hoisting crane four.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of telescoping mechanism saving arm for hoisting crane four, comprises three telescopic oil cylinders; The cylinder barrel of the first telescopic oil cylinder and the piston rod of the second telescopic oil cylinder hinged; The cylinder barrel of the second telescopic oil cylinder and the piston rod of the 3rd telescopic oil cylinder hinged; It is hinged that the piston rod of described first telescopic oil cylinder and of hoisting crane saves arm one end; It is hinged that the piston rod of described second telescopic oil cylinder and two of hoisting crane saves arm one end; It is hinged that the described piston rod of the 3rd telescopic oil cylinder and three of hoisting crane save arm one end; It is hinged that the described cylinder barrel of the 3rd telescopic oil cylinder and four of hoisting crane save arm one end.
The cylinder barrel and described four of described 3rd telescopic oil cylinder saves between arm and is provided with roller, and roller can lead and support the cylinder barrel of the 3rd telescopic oil cylinder.
Compared with prior art, the beneficial effect that the utility model has is: the utility model can expand telescopic boom run with load ability to greatest extent, improves the operating efficiency of hoisting crane.
Accompanying drawing explanation
Fig. 1 is crane boom structural representation;
Fig. 2 is the utility model one embodiment telescopic oil cylinder annexation figure;
Fig. 3 is the utility model one embodiment fundamental diagram.
Detailed description of the invention
As shown in Figure 1, crane boom comprise successively from bottom to up a joint arm 1, two save arm 2, three save arm 3, four save arm 4, two save arm 2 can a relative joint arm 1 axial parallel motion; Three joint arms 3 can relative two joint arm 2 axial parallel motions; Four joint arms 4 can the axial parallel motion of relative three joint arm 3.
As shown in Figure 2, telescopic oil cylinder I (i.e. the first telescopic oil cylinder) cylinder barrel 7 is hinged by " hinge 3 " with telescopic oil cylinder II (i.e. the second telescopic oil cylinder) piston rod 8, and telescopic oil cylinder II cylinder barrel 9 is hinged by " hinge 5 " with telescopic oil cylinder III (i.e. the 3rd telescopic oil cylinder) piston rod 10; Binding has been after oil cylinder assembled, and the piston rod 6 of telescopic oil cylinder I, the piston cylinder of telescopic oil cylinder II, the piston rod of telescopic oil cylinder III, the cylinder barrel 11 of telescopic oil cylinder III save arm, two respectively respectively by " hinge 1 ", " hinge 2 ", " hinge 4 ", " hinge 6 " and save arm, three and save arm, four to save arm hinged with one.The cylinder barrel of the 3rd telescopic oil cylinder and described four saves between arm and is provided with roller 5.
As shown in Figure 3, all rod chamber parallel connections of 3 oil cylinders form a public oil pocket to telescoping cylinder hydraulic principle, and the rodless cavity of 3 oil cylinders is connected by sequence valve.
When oil cylinder performs the work of " stretching ", hydraulic oil is first full of telescopic oil cylinder I cylinder rodless cavity, and when after telescopic oil cylinder I Overstroke, telescoping cylinder I end sequence valve opened by telescopic oil cylinder I piston rod inner core pipe, and hydraulic oil leads to telescopic oil cylinder II; Telescopic oil cylinder II principle of work is with telescopic oil cylinder I, and last telescopic oil cylinder III stretches out.
When oil cylinder performs the action of " contracting ", high pressure oil is full of the rod chamber of all telescoping cylinders, due to telescoping cylinder I, telescopic oil cylinder II end sequence valve locking check valve, therefore telescopic oil cylinder III is first retracted, when after telescopic oil cylinder III " contracting " Overstroke, just can open telescopic oil cylinder II locking check valve, telescopic oil cylinder II could perform retract action, only have when after telescopic oil cylinder II " contracting " Overstroke equally, just can open telescopic oil cylinder I locking check valve, telescopic oil cylinder I could perform retract action.
When operation get on the bus main valve " stretch " action time, hydraulic oil promote telescopic oil cylinder stretch out, make two joint arms 2, three save arms 3, four save arms 4 stretch out successively in order; When main valve " contracting " action is got on the bus in operation, hydraulic oil promotes telescopic oil cylinder and retracts, and makes four joint arms 4, three save arm 3, two joint arm 2 and retracts successively in order.The sequentially-operating of oil cylinder is controlled by the sequence valve being arranged on oil cylinder end, and sequentially-operating is realized by travel switch.The utility model patent can expand telescopic boom run with load ability to greatest extent, improves the operating efficiency of hoisting crane.
Claims (2)
1. save a telescoping mechanism for arm for hoisting crane four, it is characterized in that, comprise three telescopic oil cylinders; The cylinder barrel of the first telescopic oil cylinder and the piston rod of the second telescopic oil cylinder hinged; The cylinder barrel of the second telescopic oil cylinder and the piston rod of the 3rd telescopic oil cylinder hinged; It is hinged that the piston rod of described first telescopic oil cylinder and of hoisting crane saves arm one end; It is hinged that the piston rod of described second telescopic oil cylinder and two of hoisting crane saves arm one end; It is hinged that the described piston rod of the 3rd telescopic oil cylinder and three of hoisting crane save arm one end; It is hinged that the described cylinder barrel of the 3rd telescopic oil cylinder and four of hoisting crane save arm one end.
2. the telescoping mechanism saving arm for hoisting crane four according to claim 1, is characterized in that, the cylinder barrel and described four of described 3rd telescopic oil cylinder saves between arm and is provided with roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356815.3U CN204625035U (en) | 2015-05-29 | 2015-05-29 | A kind of telescoping mechanism saving arm for hoisting crane four |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356815.3U CN204625035U (en) | 2015-05-29 | 2015-05-29 | A kind of telescoping mechanism saving arm for hoisting crane four |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204625035U true CN204625035U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520356815.3U Active CN204625035U (en) | 2015-05-29 | 2015-05-29 | A kind of telescoping mechanism saving arm for hoisting crane four |
Country Status (1)
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| CN (1) | CN204625035U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605022A (en) * | 2016-03-14 | 2016-05-25 | 三一帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic mechanism and engineering machine |
| CN105952701A (en) * | 2016-05-20 | 2016-09-21 | 黄媛 | Multi-hydraulic-cylinder driving mechanism |
| CN108249324A (en) * | 2017-12-12 | 2018-07-06 | 湖南百特随车起重机有限公司 | A kind of sequential telescopic mechanism of the gib arm of crane |
| CN108716495A (en) * | 2018-07-10 | 2018-10-30 | 蚌埠市行星工程机械有限公司 | The built-in oil duct hydraulic cylinder group series connection asynchronous propulsion system of fitted outside |
| CN117927515A (en) * | 2024-01-26 | 2024-04-26 | 广林特装车(锦州)有限公司 | Three-stage oil cylinder for controlling sequential telescoping of multiple arms of crane |
-
2015
- 2015-05-29 CN CN201520356815.3U patent/CN204625035U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605022A (en) * | 2016-03-14 | 2016-05-25 | 三一帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic mechanism and engineering machine |
| CN105605022B (en) * | 2016-03-14 | 2018-06-12 | 三一帕尔菲格特种车辆装备有限公司 | A kind of Multi-cylinder sequential telescopic mechanism and engineering machinery |
| CN105952701A (en) * | 2016-05-20 | 2016-09-21 | 黄媛 | Multi-hydraulic-cylinder driving mechanism |
| CN108249324A (en) * | 2017-12-12 | 2018-07-06 | 湖南百特随车起重机有限公司 | A kind of sequential telescopic mechanism of the gib arm of crane |
| CN108716495A (en) * | 2018-07-10 | 2018-10-30 | 蚌埠市行星工程机械有限公司 | The built-in oil duct hydraulic cylinder group series connection asynchronous propulsion system of fitted outside |
| CN108716495B (en) * | 2018-07-10 | 2024-03-29 | 蚌埠市行星工程机械有限公司 | Built-in oil duct hydraulic cylinder group series external asynchronous propulsion system |
| CN117927515A (en) * | 2024-01-26 | 2024-04-26 | 广林特装车(锦州)有限公司 | Three-stage oil cylinder for controlling sequential telescoping of multiple arms of crane |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |