CN103613038B - Ground jack and control method thereof - Google Patents
Ground jack and control method thereof Download PDFInfo
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- CN103613038B CN103613038B CN201310611717.5A CN201310611717A CN103613038B CN 103613038 B CN103613038 B CN 103613038B CN 201310611717 A CN201310611717 A CN 201310611717A CN 103613038 B CN103613038 B CN 103613038B
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- 238000000034 method Methods 0.000 title claims description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000001133 acceleration Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 3
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- 238000004804 winding Methods 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
The invention discloses a ground jack which comprises a traction part and a hoisting frame. The traction part is fixed on a base. A rope drawn from the traction part is connected with a hoisted object through a pulley on the hoisting frame. The traction part comprises a driving shaft, a driven shaft and a rope roller fixed on the driven shaft and is used for winding the rope. The driving shaft and the driven shaft are fixed on the base through supporting bearings and are respectively provided with a driving gear and a driven gear in a fixing mode. The driving gear is meshed with the driven gear. A slip frequency brake mechanism is arranged on the driven shaft. The ground jack saves manpower and is convenient to operate and high in reliability, has a locking function on extreme conditions, can effectively prevent hoisted equipment from being damaged, and can also prevent persons from being damaged.
Description
Technical field
The present invention relates to a kind of crane gear.
Background technology
Ground jack is conventional industrial equipment, for hoisting heavy.A kind of crane gear commonly used at present needs two to three
People carries out landing by traditional rope, and speed is wayward, and rope is once slipped out of the hand, and easily causes hanging object out of control, not only
Cause device damage, also bring danger to production activity.
Content of the invention
The technical problem to be solved is to realize a kind of safe and reliable ground jack.
To achieve these goals, the technical solution used in the present invention is ground jack, including traction element and upending frame, institute
The traction element stated is fixed on base, and the rope drawn by traction element is connected with by lifting object through the pulley on suspension bracket,
Described traction element includes driving shaft, driven shaft and is fixed on for being wound around the rope roller of rope on driven shaft, described
Driving shaft and driven shaft are fixed on base by spring bearing, and both are respectively fixed with the power gear being meshed and driven
Gear；Described driven shaft is provided with slippage arrestment mechanism, and described slippage arrestment mechanism includes controller, is fixed on driven shaft
On brake disc, for clamping the hydraulic brake caliper of brake disc, hydraulic pump with hydraulic brake caliper oil communication, be arranged on driven
Acceleration transducer on axle, described controller connects hydraulic pump through hydraulic-driven circuit, and described acceleration transducer is defeated
Go out to gather signal to controller.
Described driving shaft has artificial rocking handle interface and motor output shaft connecting interface.
The supply line of the motor being connected with described driving shaft is provided with motor power relay, and described motor power continues
Electrical equipment is driven by controller.
Described slippage arrestment mechanism is provided with alarm unit, and described alarm unit is connected with controller.
It is bolted to connection between described base and upending frame, described base is connected with counterweight and takes up plate.
Described controller is connected with brake pedal.
Described driving shaft is provided with torsion torque sensor, and described torsion torque sensor outputting torsion signal is to controller.
Described controller is connected with control panel.
Ground jack control method:
System works, and collection signal is delivered to controller by acceleration transducer in real time, and controller is by this acceleration signal
Compare with preset security threshold values；
When controller judges that current acceleration exceedes safe threshold, then export brake signal to hydraulic-driven circuit, by liquid
Press pump controls hydraulic brake caliper clamping brake disc；
Output alarm signal sends alarm to alarm unit simultaneously.
Further, control panel controls mode of operation, can enter manual lifting pattern and motor lifting pattern；
Select motor lifting pattern, then, when controller judges that current acceleration exceedes safe threshold, export open circuit simultaneously
Signal is to motor power relay；
Select manual lifting pattern, then to controller, controller judges torsion direction to torsion torque sensor outputting torsion signal,
If driving shaft is traction rotation direction, then not as if lifting thing declines rotation direction, then output brake signal is to hydraulic pressure
Drive circuit, clamps brake disc by hydraulic pump control hydraulic brake caliper.
It is an advantage of the current invention that not only saving manpower, being easy to operate, and reliability is high, has in extreme circumstances and closes
Lock function, can be prevented effectively from impaired by lifting appliance, be also avoided that injury to personnel.
Brief description
Below content of width accompanying drawing expression every in description of the invention and the labelling of in figure are briefly described:
Fig. 1 is ground jack traction element structural representation；
Fig. 2 is slippage arrestment mechanism block diagram in Fig. 1；
The labelling of above-mentioned in figure is: 1, base；2nd, spring bearing；3rd, driving shaft；4th, power gear；5th, driven shaft；6、
Driven gear；7th, rope roller；8th, rope；9th, slippage arrestment mechanism；901st, controller；902nd, acceleration transducer；903rd, hydraulic pressure
Drive circuit；904th, hydraulic pump；905th, hydraulic brake caliper；906th, motor power relay；907th, alarm unit；908th, power supply is single
Unit.
Specific embodiment
Ground jack of the present invention includes traction element and upending frame, and upending frame is provided with pulley mechanism, and traction element is drawn
Rope 8 (typically wirerope) is connected with by lifting object through the pulley on suspension bracket, understands, traction element is fixed on bottom referring to Fig. 1
On seat 1, include driving shaft 3, driven shaft 5 and be fixed on driven shaft 5 for being wound around the rope roller 7 of rope 8, wherein driving shaft
3 and the two ends of driven shaft 5 be fixed on base 1 by spring bearing 2, driving shaft 3 is fixed with power gear 4, on driven shaft 5
It is fixed with driven gear 6, power gear 4 and driven gear 6 are meshed, and driving shaft 3 one end has artificial rocking handle interface and motor
Output shaft connecting interface, can be driven by manpower it is also possible to be lifted by crane using Motor drive.Pass through between base 1 and upending frame
Bolt is fixedly connected, and is detachable, takes apart and can conveniently transport, and may insure stablizing of lifting using after bolt connection again
Property, this outer base 1 is connected with counterweight and takes up plate, when lifting by crane heavier object, can also take up plate in counterweight and put into weight
Thing, such as stone.
Driven shaft 5 is provided with slippage arrestment mechanism 9, this mechanism be one can be when rope 8 runs out of steam, can be automatic
Lockout mechanisms.Understand, it includes controller 901, is fixed on the brake disc on driven shaft 5 referring to Fig. 2, for clamping braking
The hydraulic brake caliper 905 of disk, the hydraulic pump 904 with hydraulic brake caliper 905 oil communication, it is arranged on the acceleration on driven shaft 5
Sensor 902, wherein controller 901 connect hydraulic pump 904 through hydraulic-driven circuit, control controlling organization to be braked, accelerate
To controller 901, such controller 901 can judge current rope according to acceleration information to degree sensor 902 output collection signal
Whether rope 8 runs out of steam, if process to be braked.Slippage arrestment mechanism 9 has single power supply unit 908, and it includes
It is fixed on the accumulator on base 1 and transformator, can power for slippage arrestment mechanism 9, simultaneously can also be for driving driving shaft 3
Motor power.
Additionally, slippage arrestment mechanism 9 is provided with alarm unit 907, alarm unit 907 is connected with controller 901, and by controlling
Device 901 controls, staff's vigilance near braking is simultaneously emitted by alarm, staff near warning, allows, and reduces casualties
May, controller 901 is connected with brake pedal, and this pedal directly can control on-position, and such device both can assist
Put down the object lifting it is also possible to when utilizing rocking handle lifting manually, can hover hoist article halfway, can middle body stop
Breath, replacing labour force etc..
According to Motor drive driving shaft 3, motor can also be arranged on the supply line of the motor being connected with driving shaft 3
Power supply relay 906, this motor power relay 906 is driven by controller 901, allows motor power-off when having an accident simultaneously,
Avoid fault spread.
Especially electronic device is more, can be provided with control panel on controller 901, selects mode of operation.Additionally, actively
Axle 3 is provided with torsion torque sensor, and it can gather the direction of power source (positive and negative values), judges whether dynamic source is in effect,
Its outputting torsion signal is to controller 901.
The method of work of above-mentioned ground jack is as follows:
Control panel controls mode of operation, can enter manual lifting pattern and motor lifting pattern.
When selecting motor lifting pattern:
System works, and collection signal is delivered to controller 901 by acceleration transducer 902 in real time, and this is accelerated by controller
Degree signal is compared with preset security threshold values；
When controller 901 judges that current acceleration exceedes safe threshold, now it is judged as having an accident, then output braking letter
Number to hydraulic-driven circuit 903, hydraulic brake caliper 905 is controlled to clamp brake disc by hydraulic pump 904；
Output alarm signal sends alarm to alarm unit 907 simultaneously；
Output break signal is to motor power relay 906 simultaneously.
When selecting manual lifting pattern:
System works, and collection signal is delivered to controller 901 by acceleration transducer 902 in real time, and this is accelerated by controller
Degree signal compare with preset security threshold values, simultaneously then torsion torque sensor outputting torsion signal to controller 901, controller 901 is sentenced
Disconnected torsion direction；
When controller 901 judges that current acceleration exceedes safe threshold, now it is judged as having an accident, then output braking letter
Number to hydraulic-driven circuit 903, hydraulic brake caliper 905 is controlled to clamp brake disc by hydraulic pump 904；
When driving shaft 3 is traction rotation direction (controller 901 judges torsion choice direction), then not as if lifting
Thing declines rotation direction, then output brake signal, to hydraulic-driven circuit 903, controls hydraulic brake caliper 905 to press from both sides by hydraulic pump 904
Tight brake disc.
Rocking handle hoisting heavy that so can be safer, timely staff decontrols rocking handle, and weight also will not fall.
Of course, when the object needing will rise up puts down, need to enter into motor lifting pattern using control panel,
So torsion torque sensor does not work, and without interference with the operation putting down object, acceleration transducer 902 is work simultaneously, permissible
Avoid object to decline too fast, or have an accident.
Above in conjunction with accompanying drawing, the present invention is exemplarily described it is clear that the present invention implements is not subject to aforesaid way
Restriction, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and the design of the present invention and technical scheme are directly applied to other occasions, all within protection scope of the present invention.
Claims (9)
1. ground jack, including traction element and upending frame, described traction element is fixed on base (1), is drawn by traction element
The rope (8) going out is connected with by lifting object through the pulley on upending frame, and described traction element includes driving shaft (3), driven
Axle (5) and be fixed on the rope roller (7) being used for being wound around rope (8) on driven shaft (5), described driving shaft (3) and driven shaft
(5) it is fixed on base (1) by spring bearing (2), and both are respectively fixed with the power gear (4) being meshed and driven tooth
Wheel (6)；
It is characterized in that: described driven shaft (5) is provided with slippage arrestment mechanism (9), and described slippage arrestment mechanism (9) includes
Controller (901), is fixed on the brake disc on driven shaft (5), for clamping the hydraulic brake caliper (905) of brake disc, with hydraulic pressure
The hydraulic pump (904) of caliper (905) oil communication, is arranged on the acceleration transducer (902) on driven shaft (5), described
Controller (901) connects hydraulic pump (904) through hydraulic-driven circuit, and described acceleration transducer (902) output collection accelerates
Degree signal is to controller (901);
Described driving shaft (3) is provided with torsion torque sensor, and described torsion torque sensor outputting torsion signal is to controller
(901).
2. ground jack according to claim 1 it is characterised in that: described driving shaft (3) have artificial rocking handle interface and
Motor output shaft connecting interface.
3. ground jack according to claim 2 it is characterised in that: in the supply line of the motor being connected with described driving shaft
It is provided with motor power relay (906), described motor power relay (906) is driven by controller (901).
4. ground jack according to claim 1 it is characterised in that: described slippage arrestment mechanism (9) is provided with alarm unit
(907), described alarm unit (907) is connected with controller (901).
5. ground jack according to claim 1 it is characterised in that: described base (1) and upending frame between pass through bolt
It is fixedly connected, described base (1) is connected with counterweight and takes up plate.
6. ground jack according to claim 1 it is characterised in that: described controller (901) is connected with brake pedal.
7. ground jack according to claim 6 it is characterised in that: described controller (901) is connected with control panel.
8. the ground jack control method based on ground jack any one of claim 1-7 it is characterised in that:
System works, and the acceleration signal of collection is delivered to controller (901), controller by acceleration transducer (902) in real time
(901) this acceleration signal is compared with preset security threshold values；
When controller (901) judges that current acceleration exceedes safe threshold, then output brake signal is to hydraulic-driven circuit
(903), hydraulic brake caliper (905) clamping brake disc is controlled by hydraulic pump (904)；
Output alarm signal sends alarm to alarm unit (907) simultaneously.
9. ground jack control method according to claim 8 it is characterised in that:
Control panel controls mode of operation, can enter manual lifting pattern and motor lifting pattern；
Select motor lifting pattern, then, when controller (901) judges that current acceleration exceedes safe threshold, export open circuit simultaneously
Signal is to motor power relay (906)；
Select manual lifting pattern, then to controller (901), controller (901) judges to turn round torsion torque sensor outputting torsion signal
Force direction, if driving shaft (3) is traction rotation direction, then not as if lifting thing decline rotation direction, then output braking
Signal, to hydraulic-driven circuit (903), controls hydraulic brake caliper (905) clamping brake disc by hydraulic pump (904).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310611717.5A CN103613038B (en) | 2013-11-26 | 2013-11-26 | Ground jack and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310611717.5A CN103613038B (en) | 2013-11-26 | 2013-11-26 | Ground jack and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103613038A CN103613038A (en) | 2014-03-05 |
| CN103613038B true CN103613038B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310611717.5A Active CN103613038B (en) | 2013-11-26 | 2013-11-26 | Ground jack and control method thereof |
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| Country | Link |
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| CN (1) | CN103613038B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163743B (en) * | 2016-05-13 | 2019-10-15 | 张作玮 | A kind of high altitude operation steel wire discharging mechanism |
| CN113955591B (en) * | 2021-11-04 | 2023-06-23 | 安徽电缆股份有限公司 | Winding and unwinding device convenient for winding type cable drum and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690379A (en) * | 1985-02-27 | 1987-09-01 | Kabushiki Kaisha Kito | Electric chain block |
| US5615864A (en) * | 1994-03-25 | 1997-04-01 | Inventio Ag | Elevator hoist apparatus with torque support device |
| CN2392756Y (en) * | 1999-08-24 | 2000-08-23 | 兖州矿业(集团)有限责任公司常州科学技术开发研究所 | Endless-rope winch |
| CN201411344Y (en) * | 2009-06-26 | 2010-02-24 | 中国恩菲工程技术有限公司 | Braking device for lifting machine |
| CN102145862A (en) * | 2010-11-12 | 2011-08-10 | 吴江市麒麟起重机械有限公司 | Windlass |
| CN202864775U (en) * | 2012-10-18 | 2013-04-10 | 湖北银轮起重机械股份有限公司 | Manual electric dual purpose lift electric hoist |
| CN103332622A (en) * | 2013-07-02 | 2013-10-02 | 中科华核电技术研究院有限公司 | Electric block for operation of nuclear fuel assembly |
| CN203699757U (en) * | 2013-11-26 | 2014-07-09 | 国家电网公司 | Novel lifting jack |
-
2013
- 2013-11-26 CN CN201310611717.5A patent/CN103613038B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690379A (en) * | 1985-02-27 | 1987-09-01 | Kabushiki Kaisha Kito | Electric chain block |
| US5615864A (en) * | 1994-03-25 | 1997-04-01 | Inventio Ag | Elevator hoist apparatus with torque support device |
| CN2392756Y (en) * | 1999-08-24 | 2000-08-23 | 兖州矿业(集团)有限责任公司常州科学技术开发研究所 | Endless-rope winch |
| CN201411344Y (en) * | 2009-06-26 | 2010-02-24 | 中国恩菲工程技术有限公司 | Braking device for lifting machine |
| CN102145862A (en) * | 2010-11-12 | 2011-08-10 | 吴江市麒麟起重机械有限公司 | Windlass |
| CN202864775U (en) * | 2012-10-18 | 2013-04-10 | 湖北银轮起重机械股份有限公司 | Manual electric dual purpose lift electric hoist |
| CN103332622A (en) * | 2013-07-02 | 2013-10-02 | 中科华核电技术研究院有限公司 | Electric block for operation of nuclear fuel assembly |
| CN203699757U (en) * | 2013-11-26 | 2014-07-09 | 国家电网公司 | Novel lifting jack |
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| Publication number | Publication date |
|---|---|
| CN103613038A (en) | 2014-03-05 |
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| CB03 | Change of inventor or designer information |
Inventor after: Tang Longjiang Inventor after: Ling Xiaobin Inventor after: Huang Xiaoqing Inventor after: Wang Ruiwen Inventor after: Yuan Baoping Inventor after: Cheng Qian Inventor after: Zhu Bing Inventor after: Wang Wenlin Inventor before: Tang Longjiang Inventor before: Ling Xiaobin Inventor before: Huang Xiaoqing Inventor before: Wang Ruiwen Inventor before: Yuan Baoping Inventor before: Cheng Qian Inventor before: Zhu Bing |
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