CN102923591B - Automatic hook-retracting device of lifting hook of intelligent lorry crane - Google Patents
Automatic hook-retracting device of lifting hook of intelligent lorry crane Download PDFInfo
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- CN102923591B CN102923591B CN201110226518.3A CN201110226518A CN102923591B CN 102923591 B CN102923591 B CN 102923591B CN 201110226518 A CN201110226518 A CN 201110226518A CN 102923591 B CN102923591 B CN 102923591B
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- hanger
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Abstract
An automatic hook-retracting device of a lifting hook of an intelligent lorry crane is provided; a hook assembly is connected with a reel assembly through a steel wire rope; the reel assembly is driven by a hoisting oil motor; a guide plate is mounted on a small arm assembly of a boom assembly; a limit switch and a locking mechanism are mounted at the upper end of the boom assembly; the locking mechanism is connected with and controls the limit switch; and the limit switch controls a solenoid valve of the hoisting oil motor. A hook-retracting positioning hanger is mounted on the hook assembly; the hook-retracting positioning hanger touches and moves the locking mechanism and the limit switch; a hook-retracting positioning sleeve is mounted on the locking mechanism. According to the invention, only by moving a special hydraulic joystick, the lifting hook can be retracted automatically, fixed automatically, and stopped automatically; the operation is easy, laborsaving, safe, and reliable without swinging or driving view shielding; the cargo carrying space is saved; and the technical performance and quality of the lorry crane are greatly improved.
Description
Technical field
The present invention relates to technical field of engineering machinery, be specifically related to a kind of automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane.
Background technology
The present situation of China's lorry-mounted crane and the deficiency of existence are as follows at present:
1, kind is few, yields poorly, and China's lorry-mounted crane is in elementary development phase now, and kind is few, and medium and small tonnage repeats more, not yet forms so far large, medium and small complete series, and yearly output is only equivalent to the productive capacity of external Yi Ge producer.
2, force moment of crane is little, and technical merit is low, and China's lorry-mounted crane be take straight-arm elevator as main, is subject to the restriction of domestic truck chassis.Hoisting moment is little, and other performance figure are also generally lower than external advanced product.To the input in research and development of lorry-mounted crane seldom, the level of hydraulic efficiency pressure system, control system and international most advanced level also have a certain distance in current domestic enterprise.
3, safety device is incomplete, inconvenient operation, and China's lorry-mounted crane is only equipped with the Generally Recognized as safe devices such as lifting altitude, spacing and balance cock, by pass valve, and is all M/C, and abroad already Eltec is widely used on lorry-mounted crane.As the limiter of moment with micro computer and anti-tipping protector etc., some realizations wired and wireless remote control.
4, function singleness, China's lorry-mounted crane be take hoisting operation transportation as main.And external lorry-mounted crane all has multiple attaching, be mainly installed at arm head.As working bucket, grab bucket, high-altitude operation platform, gripping apparatus, hanging basket, auger are pulled fork, handling tire machinery hand, are dialled stake device etc.Make lorry-mounted crane possess the function of a tractor serves several purposes.
5, outward appearance is not attractive in appearance, and China's lorry-mounted crane appearance design and color are dull, have ignored the coordination with car conour.
6, load hook is without automatic hook collection device, after each hoisting operation completes, load hook can not be received hook automatically, can only lean on manually suspension hook is fixed on fuselage, like this, when manual control winch, the reserved too short suspension hook of steel rope is not fixed, and steel rope is reserved long, and steel rope swings, fixing not firm, impact safety and practicality in transit.
Summary of the invention
Technical matters to be solved by this invention is: solve the problem that above-mentioned prior art exists, and provide a kind of automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane, as long as stir a special hydraulic control lever, just can make load hook automatically pack up and automatically stop, automatically fixing, operate light, laborsaving, safe and reliable, do not wave, do not block driving sight, save cargo bay, promote technical performance and the quality of lorry-mounted crane.
The technical solution used in the present invention is: the suspension hook assembly of this automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane is connected with reel assembly by steel rope, reel assembly is again by the transmission of elevator oil motor, on the little arm assembly of boom assembly, guide plate is installed, on the top of boom assembly, limit switch and lockable mechanism are installed, lockable mechanism connects controls limit switch, and limit switch is controlled the electromagnetic valve of elevator oil motor, on suspension hook assembly, be provided with and receive hook positioning hanger, receive hook positioning hanger and touch lockable mechanism and limit switch, receiving hook positioning hanger cover hangs on lockable mechanism.
In technique scheme, described lockable mechanism comprises fixed support, swing connecting bar, small rod, fixed support upper end is fixed on boom assembly, fixed support lower end connects swing connecting bar by the first bearing pin, swing connecting bar one end is provided with hanger pin, the receipts hook positioning hanger of hanger pin cover hanging hook assembly, the other end of swing connecting bar connects small rod by the second bearing pin, and small rod connects controls limit switch.
In technique scheme, described limit switch comprises upper contact, lower contact, bracing wire and retracing spring, and retracing spring is arranged between upper contact and lower contact, and bracing wire upper end connects upper contact, and bracing wire lower end connects the small rod of lockable mechanism.
In technique scheme, swing connecting bar one end is provided with after hanger pin, forms " H " shape.
In technique scheme, described suspension hook assembly upper end is provided with track adjusting wheel, answers in contrast, and guide plate side is arc, and the arc-shaped side edges of guide plate is connected and installed with dash plate and bump rubber by attachment bolt.
Automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane principle: open corresponding change-over valve; on elevator, roll up; steel rope 8 drives suspension hook assembly 2 to rise; track adjusting wheel 9 while rising to certain position in suspension hook assembly 2 contacts with the dash plate 13 in guide plate 10; bump rubber 12 compressions; reduced like this impulsive force when track adjusting wheel 9 contacts with guide plate 10, actv. has been protected guide piece.Suspension hook assembly 2 continues to rise, track adjusting wheel 9 is with the guide groove track pulsation-free upward movement of guide plate 10, when rising to certain position rear hanger assembly 2, contact with lockable mechanism 6, lockable mechanism 6 is by drop-down limit switch 3 closures that make of limit switch upper contact, it is electric that thereby corresponding electromagnetic valve obtains, the oil-feed oil circuit that cuts off hoisting mechanism, quits work it, and lockable mechanism 6 is also by 2 lockings of suspension hook assembly simultaneously.
Advantageous effect: the present invention, when hoisting crane will be in off working state, automatically packs up suspension hook and is fixed up, to avoid waving or the generation of accident.This automatic hook collection device, only need stir a special hydraulic control lever, just can make suspension hook pack up and be fixed on the below of arm, makes it not wave, and can increase the cargo bay of autotruck loading space.When before arm is placed in operator's compartment, also can avoid blocking the sight line of driving driver, greatly strengthened safety and practicality in transit.
Load hook of the present invention is received hook, only need stir a special hydraulic control lever can pack up the work of fixing and stopping oil circuit automatically by load hook, the safety hazard such as driving sight have been avoided waving, blocking, and can increase the cargo bay of autotruck container, the present invention is simple to operate, easily, laborsaving, degree of automation is high, has greatly promoted technical performance and the quality of lorry-mounted crane.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention, and dotted portion is the motion process of suspension hook assembly;
Fig. 2 is Fig. 1 left view;
Fig. 3 is I partial enlarged drawing in Fig. 1, and dotted portion is the motion process of swing connecting bar, small rod;
Fig. 4 is A-A rotation enlarged drawing in Fig. 1.
The explanation of accompanying drawing mark:
1-boom assembly, 2-suspension hook assembly, 3-limit switch, 4-retracing spring, 5-bracing wire, 6-lockable mechanism,
7-the first bearing pin, 8-steel rope, 9-track adjusting wheel, 10-guide plate, 11-tie bolt, 12-bump rubber,
13-dash plate, 14-fixed support, 15-swing connecting bar, 16-small rod, 17-hanger pin,
18-the second bearing pin, 19-receives hook positioning hanger.
Referring to Fig. 1, the suspension hook assembly of automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane of the present invention is connected with reel assembly by steel rope, reel assembly is again by the transmission of elevator oil motor, on the little arm assembly of boom assembly 1, guide plate is installed, limit switch 3 and lockable mechanism 6 are installed in the upper end of boom assembly 1, lockable mechanism 6 connects controls limit switch 3, and limit switch 3 is controlled the electromagnetic valve of elevator oil motor.On suspension hook assembly 2, be provided with and receive hook positioning hanger 19, receive hook positioning hanger 19 and touch lockable mechanism 6 and limit switch 3, receiving hook positioning hanger cover hangs on lockable mechanism, described lockable mechanism 6 comprises fixed support 14, swing connecting bar 15, small rod 16, fixed support 14 upper ends are fixed on boom assembly 1, fixed support 14 lower ends connect swing connecting bar 15 by the first bearing pin 7, swing connecting bar 15 one end are provided with hanger pin 17, the receipts hook positioning hanger 19 of hanger pin 17 cover hanging hook assemblies, the other end of swing connecting bar 15 connects small rod 16 by the second bearing pin 18, small rod 16 connects controls limit switch.
In technique scheme, described limit switch comprises upper contact, lower contact, bracing wire and retracing spring, retracing spring is arranged between upper contact and lower contact, bracing wire upper end connects upper contact, bracing wire lower end connects the small rod of lockable mechanism, swing connecting bar 15 one end are provided with after hanger pin 17, form " H " shape, described suspension hook assembly 2 upper ends are provided with track adjusting wheel 9, in contrast should, guide plate 10 sides are arc, and the arc-shaped side edges of guide plate 10 is connected and installed with dash plate 13 and bump rubber 12 by attachment bolt 11.
Automatic withdrawing device of tackle hook working process:
A, receipts hook:
When arm suspension hook is during in zero load, to stir and receive hook hydraulic directional control valve handle, the running of elevator oil motor is upwards received easing out line, now suspension hook upward movement.When suspension hook upwards touches, receive after hook lock stop machine frame, suspension hook will be close to below arm and lock firmly, and the limit switch of simultaneously controlling the electromagnetic valve of receiving hook is closed, relay obtains electric, solenoid directional control valve oil duct is closed, thereby cuts off elevator oil motor oil inlet passage, and elevator oil motor shuts down.
Put hook:
The change-over valve handle of controlling hoisting is pushed and falls position, hoist motor running, lift rope loosens, and suspension hook lockable mechanism is opened, and suspension hook is because Gravitative Loads declines thereupon.
Claims (2)
1. an automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane, suspension hook assembly is connected with reel assembly by steel rope, reel assembly is again by the transmission of elevator oil motor, on the little arm assembly of boom assembly, guide plate is installed, in the upper end of boom assembly, limit switch and lockable mechanism are installed, lockable mechanism connects controls limit switch, and limit switch is controlled the electromagnetic valve of elevator oil motor, on suspension hook assembly, be provided with and receive hook positioning hanger, receive hook positioning hanger and touch lockable mechanism and limit switch, receive hook positioning hanger cover and hang on lockable mechanism; It is characterized in that: described lockable mechanism comprises fixed support, swing connecting bar, small rod, fixed support upper end is fixed on boom assembly, fixed support lower end connects swing connecting bar by the first bearing pin, swing connecting bar one end is provided with hanger pin, the receipts hook positioning hanger of hanger pin cover hanging hook assembly, the other end of swing connecting bar connects small rod by the second bearing pin, and small rod connects controls limit switch.
2. automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane according to claim 1, is characterized in that: swing connecting bar one end is provided with after hanger pin, forms " H " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110226518.3A CN102923591B (en) | 2011-08-09 | 2011-08-09 | Automatic hook-retracting device of lifting hook of intelligent lorry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110226518.3A CN102923591B (en) | 2011-08-09 | 2011-08-09 | Automatic hook-retracting device of lifting hook of intelligent lorry crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102923591A CN102923591A (en) | 2013-02-13 |
| CN102923591B true CN102923591B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110226518.3A Active CN102923591B (en) | 2011-08-09 | 2011-08-09 | Automatic hook-retracting device of lifting hook of intelligent lorry crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449322B (en) * | 2013-09-17 | 2015-06-17 | 中联重科股份有限公司 | Crane |
| CN103449321B (en) * | 2013-09-17 | 2015-06-17 | 中联重科股份有限公司 | Crane |
| CN107628546A (en) * | 2016-07-19 | 2018-01-26 | 万象设计江苏有限责任公司 | A kind of fixing rotary hoist lifting hook fixing device |
| CN106542449A (en) * | 2016-12-23 | 2017-03-29 | 山河智能装备股份有限公司 | A kind of suspension hook receives hook device |
| CN107215263A (en) * | 2017-05-31 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | Concealed container hook assembly |
| CN111039205B (en) * | 2019-12-31 | 2021-07-06 | 三一帕尔菲格特种车辆装备有限公司 | Lorry-mounted crane hook retracting device and lorry-mounted crane |
| CN111470439A (en) * | 2020-04-20 | 2020-07-31 | 三一帕尔菲格特种车辆装备有限公司 | Multifunctional arm head mechanism and crane |
| CN111634800A (en) * | 2020-06-10 | 2020-09-08 | 裴祥禄 | Waste paper recycling pretreatment device |
| CN111792549A (en) * | 2020-07-16 | 2020-10-20 | 四川中桥重工股份有限公司 | Bridge construction hoisting support |
| CN114803901A (en) * | 2022-06-29 | 2022-07-29 | 徐州工程学院 | Automatic hook retracting device for intelligent vehicle-mounted lifting equipment |
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| CN2207667Y (en) * | 1994-09-22 | 1995-09-13 | 宋文杰 | Photoelectric limit switch |
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| CN101100265A (en) * | 2007-07-30 | 2008-01-09 | 中国核动力研究设计院 | Protective device for crane |
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| CN201411336Y (en) * | 2009-06-15 | 2010-02-24 | 徐州徐工随车起重机有限公司 | Lifting beam of lorry-mounted crane |
| CN201494599U (en) * | 2009-09-21 | 2010-06-02 | 武汉船用机械有限责任公司 | Device for fixing marine crane hook |
| CN201817214U (en) * | 2010-03-04 | 2011-05-04 | 常州益利亚重工机械科技有限公司 | Automatic hook collection device of marine crane |
| CN202201661U (en) * | 2011-08-09 | 2012-04-25 | 长沙桑尼重工机械有限公司 | Automatic hook-retracting device for hoisting hook of intelligent lorry-mounted crane |
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2011
- 2011-08-09 CN CN201110226518.3A patent/CN102923591B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114025A (en) * | 1989-11-11 | 1992-05-19 | Drahtseilwerk Saar Gmbh | Swivel for use in cranes and the like |
| CN2207667Y (en) * | 1994-09-22 | 1995-09-13 | 宋文杰 | Photoelectric limit switch |
| CN2575078Y (en) * | 2002-09-20 | 2003-09-24 | 杨宝来 | Jack assembling system |
| CN101100265A (en) * | 2007-07-30 | 2008-01-09 | 中国核动力研究设计院 | Protective device for crane |
| CN101428739A (en) * | 2008-12-01 | 2009-05-13 | 徐州徐工随车起重机有限公司 | End location self-lying lift hook of lorry-mounted crane |
| CN201411336Y (en) * | 2009-06-15 | 2010-02-24 | 徐州徐工随车起重机有限公司 | Lifting beam of lorry-mounted crane |
| CN201494599U (en) * | 2009-09-21 | 2010-06-02 | 武汉船用机械有限责任公司 | Device for fixing marine crane hook |
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|---|---|
| CN102923591A (en) | 2013-02-13 |
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Effective date of registration: 20180516 Address after: 410152 2 buildings, Sha Ping Street, Kaifu District, Changsha, Hunan, 2 Patentee after: Changsha bell leopard Intelligent Machine Co., Ltd. Address before: 410152 Changling, Changsha, Hunan, Kaifu District, Patentee before: Changsha Sangni Heavy Industry Machine Co., Ltd. |