CN102139835B - Electric crane with limiting device - Google Patents

Electric crane with limiting device Download PDF

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Publication number
CN102139835B
CN102139835B CN 201010542392 CN201010542392A CN102139835B CN 102139835 B CN102139835 B CN 102139835B CN 201010542392 CN201010542392 CN 201010542392 CN 201010542392 A CN201010542392 A CN 201010542392A CN 102139835 B CN102139835 B CN 102139835B
Authority
CN
China
Prior art keywords
pulley
inhibiting device
electric crane
baffle ring
limiting
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
Application number
CN 201010542392
Other languages
Chinese (zh)
Other versions
CN102139835A (en
Inventor
周建森
徐刚
徐达
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUJIANG KYLIN HOISTING MACHINERY CO Ltd
Original Assignee
WUJIANG KYLIN HOISTING MACHINERY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUJIANG KYLIN HOISTING MACHINERY CO Ltd filed Critical WUJIANG KYLIN HOISTING MACHINERY CO Ltd
Priority to CN 201010542392 priority Critical patent/CN102139835B/en
Publication of CN102139835A publication Critical patent/CN102139835A/en
Application granted granted Critical
Publication of CN102139835B publication Critical patent/CN102139835B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Jib Cranes (AREA)

Abstract

The invention relates to an electric crane with a limiting device which comprises a fixed upright column, a suspension arm and a power device, wherein one end of the suspension arm is fixedly connected to the fixed upright column; one end of the suspension arm away from the fixed upright column is provided with a pulley, and the pulley is arranged on the suspension arm by a pulley seat; a hoisting chain led out by the power device winds around the pulley and then extends downwards, and one end of the hoisting chain is connected with a hoisting hook; one end of the suspension arm away from the fixed upright column is provided with a limiting device; and the limiting device comprises a limiting rotary shaft, a limit switch, a baffle ring and a baffle plate, wherein the limiting rotary shaft is rotatablely arranged on the suspension arm, the limit switch is fixed at one end of the limiting rotary shaft, one end of the baffle ring is fixedly connected to the limiting rotary shaft and can move with the limiting rotary shaft, the baffle plate is fixedly arranged at the other end of the baffle ring and close to the hoisting chain extending downwards and the hoisting hook. Because the electric crane provided by the invention has the limiting device arranged below the pulley, the potential safety hazards of the electric crane can be reduced through limiting the hoisting hook, and the limiting device is simple and compact in structure, and reliable and stable in operation.

Description

Electric crane with inhibiting device
Technical field
The present invention relates to a kind of electric crane with inhibiting device.
Background technology
In prior art, be not provided with inhibiting device on electric crane, when its hoisting operation, have potential safety hazard.
Summary of the invention
The purpose of this invention is to provide a kind of electric crane with inhibiting device.
For achieving the above object, the technical solution used in the present invention is:
a kind of electric crane with inhibiting device, comprise vertical columns, one end is fixedly connected on the arm on described vertical columns, engine installation, an end away from described vertical columns of described arm is provided with pulley, described pulley is arranged on described arm by pulley base, walk around the backward downward-extension of described pulley by the steel rope that described engine installation is drawn, described steel wire end is connected with suspension hook, an end away from described vertical columns of described arm is provided with inhibiting device, described inhibiting device comprises the rotating spacing rotating shaft that is arranged on described arm, be fixed on the limit switch of described spacing rotating shaft one end, one end is fixedly connected on also can be with the baffle ring of its coaxial rotation in described spacing rotating shaft, be fixedly installed on the block of the described baffle ring other end, described block is near described steel rope and suspension hook to downward-extension.
Preferably, described spacing rotating shaft is arranged on described pulley base.
Preferably, an end that is connected with described block of described baffle ring is a horizontal shaft, and described block is socketed on described horizontal shaft.
Preferably, described block is cylindrical.
Preferably, described baffle ring has a turning, and an end at described turning is fixedly connected in described spacing rotating shaft, and the other end is horizontally disposed with.
Because technique scheme is used, the present invention compared with prior art has following advantages:
Be provided with inhibiting device due to the present invention below pulley, can carry out by it spacingly to suspension hook, reduced the potential safety hazard of electric crane, and this limit device structure is simple, compact, reliable in action, stable.
Description of drawings
Accompanying drawing 1 is the front view with electric crane of inhibiting device of the present invention;
Accompanying drawing 2 is the A-A enlarged view with electric crane of inhibiting device of the present invention.
In above accompanying drawing: 1, vertical columns; 2, arm; 3, engine installation; 4, pulley; 5, pulley base; 6, steel rope; 7, suspension hook; 8, inhibiting device; 9, spacing rotating shaft; 10, limit switch; 11, baffle ring; 12, block.
The specific embodiment
The invention will be further described below in conjunction with embodiment shown in the drawings:
Embodiment one: shown in accompanying drawing 1 and accompanying drawing 2.
A kind of electric crane with inhibiting device, comprise that vertical columns 1, an end are fixedly connected on arm 2, the engine installation 3 on vertical columns 1, an end away from vertical columns 1 of arm 2 is provided with pulley 4, pulley 4 is arranged on arm 2 by pulley base 5, walk around the backward downward-extension of pulley 4 by the steel rope 6 that engine installation 3 is drawn, steel rope 6 ends are provided with suspension hook 7;
An end away from vertical columns 1 of arm 2 is provided with inhibiting device 8, inhibiting device 8 comprises the rotating limit switch 10 that is arranged on spacing rotating shaft 9 on pulley base 5, is fixed on spacing rotating shaft 9 one ends, be fixedly connected in spacing rotating shaft 9 and can be with the baffle ring 11 of its coaxial rotation, be fixedly installed on the block 12 of baffle ring 11 1 ends, baffle ring 11 has a turning, one end at turning is fixedly connected in spacing rotating shaft 9, the other end is horizontally disposed with, one end of the level of baffle ring 11 is provided with one vertically and the horizontal shaft of baffle ring 11, and columniform block 12 is socketed on horizontal shaft; Block 12 is near steel rope 6 and suspension hook 7 to downward-extension.
When suspension hook 7 is up, suspension hook 7 is encountered block 12, block 12 drives baffle ring 11, spacing rotating shaft 9 and together upwards rotates, the straight-line motion of suspension hook 7 is converted to rotatablely moving of inhibiting device 8, because the limit switch 10 that is arranged on spacing rotating shaft 9 one ends together rotates with spacing rotating shaft 9, therefore its action is played position-limiting action with supply disconnecton; When suspension hook 7 is descending, under the Action of Gravity Field of block 12, inhibiting device 8 homings.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.

Claims (5)

1. electric crane with inhibiting device, comprise vertical columns, one end is fixedly connected on the arm on described vertical columns, engine installation, an end away from described vertical columns of described arm is provided with pulley, described pulley is arranged on described arm by pulley base, walk around the backward downward-extension of described pulley by the steel rope that described engine installation is drawn, described steel wire end is connected with suspension hook, it is characterized in that: the end away from described vertical columns of described arm is provided with inhibiting device, described inhibiting device comprises the rotating spacing rotating shaft that is arranged on described arm, be fixed on the limit switch of described spacing rotating shaft one end, one end is fixedly connected on also can be with the baffle ring of its coaxial rotation in described spacing rotating shaft, be fixedly installed on the block of the described baffle ring other end, described block is near described steel rope and suspension hook to downward-extension.
2. the electric crane with inhibiting device according to claim 1, it is characterized in that: described spacing rotating shaft is arranged on described pulley base.
3. the electric crane with inhibiting device according to claim 1, it is characterized in that: an end that is connected with described block of described baffle ring is a horizontal shaft, and described block is socketed on described horizontal shaft.
4. the electric crane with inhibiting device according to claim 3, it is characterized in that: described block is cylindrical.
5. the electric crane with inhibiting device according to claim 1, it is characterized in that: described baffle ring has a turning, and an end at described turning is fixedly connected in described spacing rotating shaft, and the other end is horizontally disposed with.
CN 201010542392 2010-11-12 2010-11-12 Electric crane with limiting device Expired - Fee Related CN102139835B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010542392 CN102139835B (en) 2010-11-12 2010-11-12 Electric crane with limiting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010542392 CN102139835B (en) 2010-11-12 2010-11-12 Electric crane with limiting device

Publications (2)

Publication Number Publication Date
CN102139835A CN102139835A (en) 2011-08-03
CN102139835B true CN102139835B (en) 2013-06-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010542392 Expired - Fee Related CN102139835B (en) 2010-11-12 2010-11-12 Electric crane with limiting device

Country Status (1)

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CN (1) CN102139835B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103641006A (en) * 2013-11-25 2014-03-19 无锡起岸重工机械有限公司 Lifting limiting device for ship crane
CN104444737A (en) * 2014-11-25 2015-03-25 兖州煤业股份有限公司 Lifting device for mine and pulley fixing device thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101343021A (en) * 2008-08-20 2009-01-14 大连华锐股份有限公司 Large-scale full-turning offshore platform crane
CN201232014Y (en) * 2008-06-24 2009-05-06 赵海强 Line type small hoisting machine
CN101880006A (en) * 2010-06-24 2010-11-10 大连华锐股份有限公司 Roll-on device and method for large fixed type rotary crane
CN201901550U (en) * 2010-11-12 2011-07-20 吴江市麒麟起重机械有限公司 Electric crane with limiting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201232014Y (en) * 2008-06-24 2009-05-06 赵海强 Line type small hoisting machine
CN101343021A (en) * 2008-08-20 2009-01-14 大连华锐股份有限公司 Large-scale full-turning offshore platform crane
CN101880006A (en) * 2010-06-24 2010-11-10 大连华锐股份有限公司 Roll-on device and method for large fixed type rotary crane
CN201901550U (en) * 2010-11-12 2011-07-20 吴江市麒麟起重机械有限公司 Electric crane with limiting device

Also Published As

Publication number Publication date
CN102139835A (en) 2011-08-03

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20130619

Termination date: 20181112