CN201209095Y - Hoist boom safety position limiter for pipe crane - Google Patents
Hoist boom safety position limiter for pipe crane Download PDFInfo
- Publication number
- CN201209095Y CN201209095Y CNU2008200215732U CN200820021573U CN201209095Y CN 201209095 Y CN201209095 Y CN 201209095Y CN U2008200215732 U CNU2008200215732 U CN U2008200215732U CN 200820021573 U CN200820021573 U CN 200820021573U CN 201209095 Y CN201209095 Y CN 201209095Y
- Authority
- CN
- China
- Prior art keywords
- pipe sling
- arm
- safety
- vehicle body
- pipe
- 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.)
- Expired - Fee Related
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- Jib Cranes (AREA)
Abstract
The utility model relates to a safety limiting device of a crane jib of a pipe sling. A pushing shaft of a compression spring is sleeved on a pipe sling body by a bracket; one end of the pushing shaft is arranged at a position which is contacted by the crane jib hinged on the pipe sling body when the crane jib retracts, and the other end of the pushing shaft is provided with an induction metal sheet; and a proximity switch is arranged at the rear part of the induction metal sheet and is fixed with the pipe sling body. The use of the safety limiting device improves the reliability of a limiting safety switch of the crane jib, guarantees the use safety of the pipe sling and reduces the failure rate of an electrical system.
Description
Technical field:
The utility model relates to a kind of safety device of pipe sling, especially pipe sling arm inhibiting device.
Background technology:
Pipe sling is a kind of equipment of designing and developing at pipelaying such as oil, natural fuels specially, is mainly used in transportation, counterpart, the hyposulculus operation of pipeline.Pipe sling is engaged in lifting operation, has certain danger.In order to prevent that to a certain extent arm from by stretch bending, distortion, reducing this danger, the spacing safety device of arm need be set on machine.The mode of operation of existing pipe sling arm safety inhibiting device is: when arm when the vehicle body, by the axial compression spring that contracts, slurcam removes to contact the crush stroke switch, and travel switch disconnects, and electric signal disconnects, spacing electromagnetic valve outage, this road load feedback pressure is released, the working barrel pressure release, elevator quits work, suspension rod also just no longer continues to swing in car, is restricted.But in use for some time, find travel switch through frequent extruding, its in-use performance reduces, and malfunctioning situation occurs.Remove the crush stroke switch by slurcam, and the stroke of travel switch only is 10mm, arm is in removal process, though spacing electromagnetic valve outage, because inertia, arm also will continue to move in car, it is bad so very easily to cause travel switch to squeeze, and causes arm spacing malfunctioning, and pipe sling can't be worked.
Summary of the invention:
The purpose of this utility model provides a kind of pipe sling arm safety inhibiting device, avoids arm frequent crush stroke switch and cause arm spacing malfunctioning in removal process, the phenomenon that pipe sling can't be worked.
The purpose of this utility model realizes as follows: the push shaft that is with compression spring on the vehicle body by the support setting, one end of push shaft is in the position that can touch when the arm of hinge on vehicle body packed up, the other end of push shaft is equipped with induction metal plate, be in the induction metal plate rear portion be equipped with vehicle body fixing near switch.Arm is when the vehicle body, promote push shaft, compression spring, push shaft drives induction metal plate and moves near the inductive switching face, output signal to control circuit near inductive switching by signal wire (SW), the control electromagnetic valve outage releases the working barrel pressure release with this road load feedback pressure, winch quits work, suspension rod also just no longer continues to swing in car, is restricted, and plays position-limiting action.
The beneficial effect that the utlity model has is: improved the reliability of the spacing safety switch of arm, ensured the safety in utilization of pipe sling, reduced the fault rate of electric system.
Description of drawings:
Accompanying drawing is the structural representation of the utility model pipe sling arm safety inhibiting device.
The specific embodiment:
With reference to accompanying drawing, be with the push shaft 2 of compression spring 3 on the vehicle body by the support setting, one end of push shaft 2 is in the position that can touch when the arm 1 of hinge on vehicle body packed up, the other end of push shaft 2 is equipped with induction metal plate 4, be in induction metal plate 4 rear portions and be equipped with and the fixing electronic proximity switch 5 of vehicle body, the signal wire (SW) 6 of electronic proximity switch 5 connects the control circuit part.Arm 1 is during near vehicle body, and induction metal plate 4 makes near switch 5 induction output signals elevator is quit work, and suspension rod 1 stops to swing in car, plays position-limiting action.
Claims (1)
- A kind of pipe sling arm safety inhibiting device, be with the push shaft of compression spring on the vehicle body by the support setting, one end of push shaft is in the position that can touch when the arm of hinge on vehicle body packed up, it is characterized in that: the other end of push shaft (2) is equipped with induction metal plate (4), is in induction metal plate (4) rear portion and is equipped with and the fixing electronic proximity switch (5) of vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200215732U CN201209095Y (en) | 2008-04-29 | 2008-04-29 | Hoist boom safety position limiter for pipe crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200215732U CN201209095Y (en) | 2008-04-29 | 2008-04-29 | Hoist boom safety position limiter for pipe crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201209095Y true CN201209095Y (en) | 2009-03-18 |
Family
ID=40479824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200215732U Expired - Fee Related CN201209095Y (en) | 2008-04-29 | 2008-04-29 | Hoist boom safety position limiter for pipe crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201209095Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730581A (en) * | 2012-06-29 | 2012-10-17 | 上海三一科技有限公司 | Main luffing mast rope collection operating device and crane including same |
| CN101993007B (en) * | 2009-08-15 | 2013-01-30 | 广西华力集团有限公司 | Pipe crane hoisting arm limiting device with buffer mechanism |
| CN104150367A (en) * | 2014-08-06 | 2014-11-19 | 上海振华重工(集团)股份有限公司 | Spacing device for safe hook of crane crossbeam |
| CN108328495A (en) * | 2018-03-22 | 2018-07-27 | 徐工集团工程机械股份有限公司 | The device of a kind of anti-hypsokinesis and rotation and the sideboom tractor with the device |
-
2008
- 2008-04-29 CN CNU2008200215732U patent/CN201209095Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993007B (en) * | 2009-08-15 | 2013-01-30 | 广西华力集团有限公司 | Pipe crane hoisting arm limiting device with buffer mechanism |
| CN102730581A (en) * | 2012-06-29 | 2012-10-17 | 上海三一科技有限公司 | Main luffing mast rope collection operating device and crane including same |
| CN104150367A (en) * | 2014-08-06 | 2014-11-19 | 上海振华重工(集团)股份有限公司 | Spacing device for safe hook of crane crossbeam |
| CN108328495A (en) * | 2018-03-22 | 2018-07-27 | 徐工集团工程机械股份有限公司 | The device of a kind of anti-hypsokinesis and rotation and the sideboom tractor with the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20140429 |