CN101993007A - Pipe crane hoisting arm limiting device with buffer mechanism - Google Patents
Pipe crane hoisting arm limiting device with buffer mechanism Download PDFInfo
- Publication number
- CN101993007A CN101993007A CN 200910305644 CN200910305644A CN101993007A CN 101993007 A CN101993007 A CN 101993007A CN 200910305644 CN200910305644 CN 200910305644 CN 200910305644 A CN200910305644 A CN 200910305644A CN 101993007 A CN101993007 A CN 101993007A
- Authority
- CN
- China
- Prior art keywords
- push rod
- spring
- orienting sleeve
- mount pad
- arm
- 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.)
- Granted
Links
Images
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a pipe crane hoisting arm limiting device with a buffer mechanism. The device comprises a push rod, a spring, a mounting seat and a limit switch, wherein two ends of the mounting seat are connected with a cover plate and a guide sleeve respectively; the push rod sleeved with the spring is arranged in the mounting seat; two ends of the push rod pass through the guide sleeve and the cover plate respectively and can move axially along the axis of the mounting seat; the limit switch is arranged on a mounting plate connected with the mounting seat and positioned at one end of the push rod passing through the guide sleeve; one end, close to the cover plate, of the push rod is matched and connected with a positioning sleeve; one end of the spring sleeved on the push rod is fixed on the positioning sleeve, and the other end of the spring is fixed at one end of the mounting seat connected with the guide sleeve; during axial movement along the axis, the push rod can drive the positioning sleeve to compress the spring and is subjected to a reacting force of the spring at the same time; one end, close to the guide sleeve, of the push rod is provided with a step; and a rubber cushion is arranged on the step. The device can effectively buffer and limit a hoisting arm, prevent a crane from tipping, prevent the hoisting arm from being damaged by high impact load and prolong the service life of a pipe crane.
Description
[technical field]
The present invention relates to a kind of safety device that is used for weight-lifting equipment, particularly a kind of arm inhibiting device of pipe sling.
[background technology]
Pipe sling is a kind of equipment of designing and developing at pipelaying such as oil, natural fuels specially, be mainly used in transportation, counterpart, hyposulculus operation of pipeline etc., in order to enlarge the scope of work of pipe sling, often adopt luffing mechanism to change the amplitude of pipe sling, the luffing mechanism that pipe sling adopts is the boom type luffing mechanism, and just the pipe sling arm is around propping up the certain angle of spot wobble to change the pipe sling amplitude; Because lifting operation has certain risk, the angle of arm swing must be limited in certain scope, otherwise the phenomenon of tumbling will occur, and causes a serious accident, and therefore arm safety inhibiting device need be set on machine.Existing pipe sling arm safety inhibiting device is directly by the push shaft contact switch, and promptly the break-make by switch realizes spacing to arm; Its shortcoming be not arm stop operating advance row buffering, cause arm to bear bigger impact load, so arm is damaged easily, the push rod switch is malfunctioning easily; Though be with recoil spring on its push shaft of arm safety inhibiting device that has, arm obtains buffering before stopping operating, because the effect of inertia of arm, but its limit effect still is not fine.
[summary of the invention]
The object of the present invention is to provide a kind of effectively prevent arm tumble, guarantee simultaneously arm stop operating before effectively buffer limit, safe and reliable pipe sling arm inhibiting device, to overcome the weak point of above-mentioned prior art.
The technical scheme that solves the problems of the technologies described above is: a kind of pipe sling arm inhibiting device with buffer gear, comprise push rod, spring, mount pad and limit switch, the mount pad two ends connect cover plate and orienting sleeve respectively, the push rod that is with spring is installed in the mount pad, the two ends of push rod are passed orienting sleeve and cover plate respectively and can be made axial motion along the mount pad axis, limit switch be installed in mount pad bonded assembly adapter plate on, its position is positioned at the end that push rod passes orienting sleeve; One end of the nearly cover plate of described push rod is connected with locating bush by pin fit, spring one end that is enclosed within on the push rod is fixed on the locating bush, the other end is fixed on the end that mount pad connects orienting sleeve, and push rod can drive the locating bush compression spring, be subjected to the antagonistic force of spring simultaneously along the mount pad axis when the orienting sleeve direction is made axial motion; One end of the nearly orienting sleeve of described push rod has a step, and rubber cushion is installed on the step.
Its further technical scheme is: the key that the external peripheral surface at the position that described push rod cooperates with orienting sleeve has an anti-throw-out lever to rotate has the keyway that cooperates with key on the cooresponding inner periphery of orienting sleeve; One end of the nearly limit switch of described push rod is connected with push pedal.
Because adopt said structure, a kind of pipe sling arm inhibiting device with buffer gear of the present invention has following beneficial effect:
Both ends of the spring among the present invention is connected with locating bush with mount pad respectively, when winch draws arm when fulcrum turns to a certain position, the arm crossbeam contacts with the push rod of shock absorber, and by the push rod compression spring, spring is also given antagonistic force of arm simultaneously, so also corresponding slowing down of velocity of rotation of arm, when arm is rotated further, push rod continues compression spring, and limit switch is run in the push pedal on the push rod at this moment, limit switch is cut off the electricity supply, and winch then stops operating; When arm reached the limit of the position because of effect of inertia is rotated further, the rubber cushion on the push rod step contacted with orienting sleeve, and push rod can not remake axial motion, and arm can not rotate again.Therefore, compare with conventional device, the present invention not only can make the effective buffer limit of arm, prevent that loop wheel machine from tumbling, and avoids arm to bear bigger impact load and be damaged, both prolong the service life of pipe sling, improved the service efficiency of pipe sling again.
Below, the technical characterictic to a kind of pipe sling arm inhibiting device with buffer gear of the present invention is further described in conjunction with the accompanying drawings and embodiments.
[description of drawings]
Fig. 1: the structural representation (semi-sictional view) of a kind of pipe sling arm inhibiting device with buffer gear of the present invention.
Among the figure:
[specific embodiment]
Embodiment:
A kind of pipe sling arm inhibiting device with buffer gear, see Fig. 1, comprise push rod 3, spring 9, mount pad 10 and limit switch 2, the mount pad two ends connect cover plate 5 and orienting sleeve 12 respectively, the push rod 3 that is with spring is installed in the mount pad, the two ends of push rod are passed orienting sleeve 12 and cover plate 5 respectively and can be made axial motion along the mount pad axis, limit switch 2 be installed in mount pad bonded assembly adapter plate 13 on, its position is positioned at the end that push rod 3 passes orienting sleeve; One end of described push rod 3 nearly cover plates is connected with locating bush 8 by pin 7, spring 9 one ends that are enclosed within on the push rod 3 are fixed on the locating bush 8, the other end is fixed on the end that mount pad 10 connects orienting sleeve 12, and push rod 3 can drive the antagonistic force that locating bush 8 compression springs 9 are subjected to spring 9 simultaneously along the mount pad axis when the orienting sleeve direction is made axial motion; One end of described push rod 3 nearly orienting sleeves has a step, and rubber cushion 11 is installed on the step.
The key 4 that the external peripheral surface at the position that described push rod 3 cooperates with orienting sleeve 12 has an anti-throw-out lever to rotate has the keyway that cooperates with key 4 on the cooresponding inner periphery of orienting sleeve.One end of described push rod 3 nearly limit switches is connected with push pedal 1.
The principle of work of a kind of pipe sling arm inhibiting device with buffer gear of the present invention:
When arm 6 when fulcrum O rotates counterclockwise a certain angle, arm 6 contacts with push rod 3, and promotion push rod 3 is done to make axial motion along the mount pad axis to the orienting sleeve direction, push rod 3 drives locating bush 8 compression springs 9, spring 9 is given antagonistic force of arm by push rod 3 simultaneously, and arm 6 velocities of rotation are slowed down; When arm 6 is rotated further and promotes push pedal 1 on the push rod 3 and runs into limit switch 2, limit switch 2 is cut off the electricity supply, the luffing winch stops operating, because effect of inertia, arm 6 is rotated further, but making a concerted effort that arm is suffered at this moment is opposite with sense of motion, so arm has just stopped rotation in the extremely short time.When arm reaches the limit of the position because of effect of inertia is rotated further, rubber cushion 11 contacts with orienting sleeve 12, because the effect of step above the push rod 3, push rod 3 can not remake axial motion, so arm 6 is locked by force, avoided limit switch to be cut off back, the arm position that oversteps the extreme limit because of effect of inertia is rotated further and caused and tumble.Rubber cushion 11 except spacing, play the bumper and absorbing shock effect simultaneously, key 4 plays guiding and anti-throw-out lever 3 rotates.
Present embodiment is one of preferred forms of the present invention, as the conversion of the embodiment of the invention:
1. also can cancel on the push rod 3 rubber cushion 11 that is provided with, can realize the purpose that prevents that arm from tumbling equally, compare with the pipe sling shock absorber that is provided with rubber cushion 11, but its buffering and damping effect be slightly poor.
2. also can cancel the push pedal that is arranged on the push rod 3 and directly go to touch and cut off limit switch by push rod, the key 4 that this kind situation can push rod in the air be rotated, but push rod need extend, and increases cost.
3. other conversion based on the technical scheme without prejudice to the technology of the present invention purpose also belong within protection scope of the present invention.
Claims (3)
1. pipe sling arm inhibiting device with buffer gear, comprise push rod (3), spring (9), mount pad (10) and limit switch (2), the mount pad two ends connect cover plate (5) and orienting sleeve (12) respectively, the push rod (3) that is with spring is installed in the mount pad, the two ends of push rod are passed orienting sleeve and cover plate respectively and can be made axial motion along the mount pad axis, limit switch (2) be installed in mount pad bonded assembly adapter plate (13) on, its position is positioned at the end that push rod (3) passes orienting sleeve; It is characterized in that: an end of the nearly cover plate of described push rod (3) is connected with locating bush (8) by pin (7), spring (9) one ends that are enclosed within on the push rod (3) are fixed on the locating bush (8), the other end is fixed on the end that mount pad (10) connects orienting sleeve (12), and push rod (3) can drive the antagonistic force that locating bush (8) compression spring (9) is subjected to spring simultaneously along the mount pad axis when the orienting sleeve direction is made axial motion; One end of the nearly orienting sleeve of described push rod (3) has a step, and rubber cushion (11) is installed on the step.
2. a kind of pipe sling arm inhibiting device as claimed in claim 1 with buffer gear, it is characterized in that: the key (4) that the external peripheral surface at the position that described push rod (3) cooperates with orienting sleeve (12) has an anti-throw-out lever to rotate has the keyway that cooperates with key (4) on the inner periphery of orienting sleeve (12).
3. a kind of pipe sling arm inhibiting device with buffer gear as claimed in claim 1 or 2 is characterized in that: an end of the nearly limit switch of described push rod (3) is connected with push pedal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910305644 CN101993007B (en) | 2009-08-15 | 2009-08-15 | Pipe crane hoisting arm limiting device with buffer mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910305644 CN101993007B (en) | 2009-08-15 | 2009-08-15 | Pipe crane hoisting arm limiting device with buffer mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101993007A true CN101993007A (en) | 2011-03-30 |
| CN101993007B CN101993007B (en) | 2013-01-30 |
Family
ID=43783854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910305644 Expired - Fee Related CN101993007B (en) | 2009-08-15 | 2009-08-15 | Pipe crane hoisting arm limiting device with buffer mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101993007B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285601A (en) * | 2011-08-05 | 2011-12-21 | 宝鸡石油机械有限责任公司 | Rotary buffer with limit switch for platform crane |
| 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 |
| CN103641005A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Steel wire rope luffing electric arm rack anti-collision device |
| CN103848347A (en) * | 2012-12-04 | 2014-06-11 | 齐齐哈尔轨道交通装备有限责任公司 | Lifting height limiting device for railway crane |
| 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 |
| CN113800399A (en) * | 2021-08-18 | 2021-12-17 | 中船澄西船舶修造有限公司 | Quick-witted stop device of door |
| CN116425062A (en) * | 2023-06-09 | 2023-07-14 | 山东中建众力设备租赁有限公司 | Over-tilting early warning device of tower crane |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591010Y (en) * | 2002-11-28 | 2003-12-10 | 张智伟 | Loading steel wire ropes buffer arranging rope mechanism |
| CN100564226C (en) * | 2006-11-08 | 2009-12-02 | 中国科学院沈阳自动化研究所 | A kind of overhead hoist |
| CN201038577Y (en) * | 2007-03-26 | 2008-03-19 | 贵州航天电器股份有限公司 | Press pincers positioner capable of deep regulation |
| CN201180068Y (en) * | 2008-02-20 | 2009-01-14 | 泰安泰山工程机械股份有限公司 | Novel large-capacity tonnage pipelayer |
| CN201209095Y (en) * | 2008-04-29 | 2009-03-18 | 山推工程机械股份有限公司 | Hoist boom safety position limiter for pipe crane |
| CN201473236U (en) * | 2009-08-15 | 2010-05-19 | 广西华力集团有限公司 | Pipe sling jib limit device with buffer mechanism |
-
2009
- 2009-08-15 CN CN 200910305644 patent/CN101993007B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285601A (en) * | 2011-08-05 | 2011-12-21 | 宝鸡石油机械有限责任公司 | Rotary buffer with limit switch for platform crane |
| 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 |
| CN103848347A (en) * | 2012-12-04 | 2014-06-11 | 齐齐哈尔轨道交通装备有限责任公司 | Lifting height limiting device for railway crane |
| CN103848347B (en) * | 2012-12-04 | 2015-08-19 | 齐齐哈尔轨道交通装备有限责任公司 | Locomotive crane device for limiting lifting attitude of winding |
| CN103641005A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Steel wire rope luffing electric arm rack anti-collision device |
| 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 |
| CN113800399A (en) * | 2021-08-18 | 2021-12-17 | 中船澄西船舶修造有限公司 | Quick-witted stop device of door |
| CN113800399B (en) * | 2021-08-18 | 2023-12-26 | 中船澄西船舶修造有限公司 | Door machine stop device |
| CN116425062A (en) * | 2023-06-09 | 2023-07-14 | 山东中建众力设备租赁有限公司 | Over-tilting early warning device of tower crane |
| CN116425062B (en) * | 2023-06-09 | 2023-09-12 | 山东中建众力设备租赁有限公司 | Over-tilting early warning device of tower crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101993007B (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101993007B (en) | Pipe crane hoisting arm limiting device with buffer mechanism | |
| CN101759076B (en) | Elevator buffer | |
| CN110271936B (en) | Remote triggering reset mechanism of speed limiter | |
| CN201554805U (en) | Spring shock absorber | |
| CN101780910B (en) | Machine-room-less speed limiter for elevator | |
| CN102070056B (en) | Speed limiter with electromagnet and built-in photoelectric encoder | |
| CN103671635B (en) | A kind of reinforcement type electromagnetic mechanical brake | |
| CN201473236U (en) | Pipe sling jib limit device with buffer mechanism | |
| CN201703934U (en) | Centrifugal fling block type speed-limiting anti-falling safety device | |
| CN202467289U (en) | Mechanical anti-falling device of mechanism parking equipment | |
| CN105480889A (en) | Coiling block stall braking system and hoisting device | |
| CN112762110A (en) | Radial clamp tooth type brake | |
| CN102736663A (en) | Rotary control structure with automatic folding function | |
| CN103145061B (en) | Self-locking disc type brake | |
| CN204198152U (en) | Elevator machine holdout device | |
| CN201209095Y (en) | Hoist boom safety position limiter for pipe crane | |
| CN101108715A (en) | Movable cam type synthetic limiting device of carriage amplitude varying tower crane | |
| CN211082633U (en) | Buffer braking system suitable for high-speed linear moving object | |
| CN203283988U (en) | Anti-dropping safety device | |
| CN103112795B (en) | Self-locking outer rim drg | |
| JP5014511B2 (en) | Switch operating device | |
| CN211231364U (en) | Damping structure of brake clamp based on threaded pin | |
| CN104555793A (en) | Self-locking disc brake | |
| CN102372224A (en) | Mechanical safety device for preventing overspeed descending of escalator or moving sidewalk | |
| CN202122822U (en) | Device simulating motion of free falling body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: GUILIN HUALI HEAVY INDUSTRY MACHINERY CO., LTD. Effective date: 20141203 Owner name: LONGXINING (SHANGHAI) PHARMACEUTICAL TECHNOLOGY CO Free format text: FORMER OWNER: GUANGXI HUALI GROUP CO., LTD. Effective date: 20141203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 545112 LIUZHOU, GUANGXI ZHUANG AUTONOMOUS REGION TO: 545000 LIUZHOU, GUANGXI ZHUANG AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141203 Address after: 545000 the Guangxi Zhuang Autonomous Region Liuzhou city and the Industrial District No. 9 Yang Xulu Patentee after: LIUZHOU HONGDA MACHINERY MANUFACTURING CO., LTD. Address before: 545112 No. 151 Liu Shi Road, the Guangxi Zhuang Autonomous Region, Liuzhou Patentee before: Guangxi Huali Group Co., Ltd. Patentee before: Guilin Huali Heavy Industry Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180815 |