CN103950842B - A kind of tower machine jack-up system of electrohydraulic mixed power - Google Patents
A kind of tower machine jack-up system of electrohydraulic mixed power Download PDFInfo
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- CN103950842B CN103950842B CN201410169944.1A CN201410169944A CN103950842B CN 103950842 B CN103950842 B CN 103950842B CN 201410169944 A CN201410169944 A CN 201410169944A CN 103950842 B CN103950842 B CN 103950842B
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Abstract
The present invention announces a kind of tower machine jack-up system of electrohydraulic mixed power, belongs to tower crane technical field.It comprises fixed frame, tower body, stock, pivoting support, tower cap, arm and equilibrium arm; Stock is also provided with hydraulic jacking system, and the hydraulic power unit in hydraulic jacking system is fixed on stock; Also comprise the electrical motor fixed on the ground and the electric reel be connected with electrical motor; Tower body is fixed with multiple pulley, tower body is provided with and walks around pulley and steel rope for controlling stock jacking and decline; Described steel rope one end is fixed and around on reel, the upper end that its other end walks around tower body is connected with stock.The present invention can realize the synchronization action of electrical motor and hydraulic power unit hybrid power, improves jacking speed, improves production efficiency.Based on electrical motor outputting power in jacking process, and realize the fine setting in tower machine jacking process by hydraulic efficiency pressure system, improve safety performance.
Description
Technical field
The present invention relates to tower crane technical field, specifically a kind of tower machine jack-up system of electrohydraulic mixed power.
Background technology
The jack-up system mainly hydraulic jacking system of current domestic existing tower crane, this kind of structure is the tower machine jacking hydraulic system that a kind of safety performance is higher, main dependence driven by motor Hydraulic Pump, convert electrical energy into hydraulic energy, set up system working pressure through by pass valve, drive actuating unit by control elements such as change-over valves, hydraulic energy is converted to mechanical energy and drives load by hydraulic actuating cylinder, make tower cap increase or decline, increase or reduce standard knot, circulation of finishing the work.Because it uses the lifting of Hydraulic Elements control tower machine, due to the performance of Hydraulic Elements, the impact of the factor such as processing and environment for use, it is unable and cannot jacking that the problem of hydraulic jacking system mainly concentrates on jacking, jacking will can not there is and the phenomenon of not getting off that declines, easy generation is dangerous, causes engineering accident.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of tower machine jack-up system of electrohydraulic mixed power.
The present invention is achieved through the following technical solutions: a kind of tower machine jack-up system of electrohydraulic mixed power, and it comprises the underframe, the tower body be made up of multiple standard knot in fixed frame and the stock be sleeved on tower body that fix on the ground; Described stock top is provided with pivoting support and tower cap; Described pivoting support is provided with arm and equilibrium arm; Described stock is also provided with hydraulic jacking system, and the hydraulic power unit in hydraulic jacking system is fixed on stock;
Also comprise electric power jack-up system, described electric power jack-up system comprise the electrical motor fixed on the ground, the reel be connected with electrical motor, on along the fixing up and down multiple pulley of tower body with walk around described pulley for controlling the steel rope of stock jacking and decline;
Described steel rope one end is fixed and around on reel, the upper end that the other end walks around tower body is connected with stock.
It is further: respectively install a pulley at the middle part of the upper end rib of each standard knot of described tower body, is also provided with a pulley in tower body standard knot upper surface middle part topmost, and described steel rope is walked around pulley and is connected to the bottom of stock downwards.
Described stock is fixed with the roller rolled on tower body.
The height of described reel need make lower end steel rope be in horizontality.
Electrical motor can be utilized separately during jacking to carry out jacking by reel, pulley driving steel rope, hydraulic power unit also can be utilized separately to provide pressure to realize the jacking of tower machine through power element.
The synchronization action of electrical motor and hydraulic power unit hybrid power can be realized, i.e. electrical motor and hydraulic power unit action simultaneously in the process of jacking, namely in the process of hydraulic power unit lifting tower machine, electrical motor also drives steel rope to carry out enhancing action, jacking speed can be improved, solve the slow-footed problem of existing tower machine hydraulic power unit jacking, improve production efficiency.But based on electrical motor outputting power in this jacking process, hydraulic efficiency pressure system outputting power coordinates motor action, and the lifting realized in the standard knot installation process of tower machine by hydraulic efficiency pressure system is finely tuned, and improves safety performance.
Electrical motor can utilize stepper motor or servomotor torque constant to control jacking or descending speed.
The decline process of tower machine can utilize motor portion to carry out, and responsiveness is very fast, and efficiency is higher.
Structure of the present invention is simple, safe and reliable, improve tower machine working stability and service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is underframe pulley installation structure schematic diagram of the present invention;
Fig. 3 is this end standard joint pulley installation structure schematic diagram.
In figure: 1, underframe; 2, tower body; 3, stock; 4, pivoting support; 5, tower cap; 6, arm; 7, equilibrium arm; 8, hydraulic power unit; 9, electrical motor; 10, reel; 11, steel rope; 12, pulley; 13, roller.
Detailed description of the invention
Be below a specific embodiment of the present invention, existing the invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, a kind of tower machine jack-up system of electrohydraulic mixed power, it comprises the underframe 1, the tower body 2 be made up of standard knot in fixed frame 1 and the stock 3 be sleeved on tower body 2 that fix on the ground; Stock 3 top is provided with pivoting support 4 and tower cap 5; Pivoting support 4 is provided with arm 6 and equilibrium arm 7; Stock 3 is also provided with hydraulic jacking system, and the hydraulic power unit 8 in hydraulic jacking system is fixed on stock 3; Also comprise the electrical motor 9 fixed on the ground and the reel 10 linked with electrical motor 9; Tower body 2 is fixed with multiple pulley 12, tower body 2 is provided with and walks around pulley 12 and steel rope 11 for controlling stock 3 jacking and decline, after installing, steel rope 11 is in tensioned state and ensures not depart from pulley 12; Steel rope 11 one end is fixed and around on reel 10, the upper end that its other end walks around tower body 2 is connected with stock 3.
As shown in Figures 2 and 3, pulley 12 is arranged on the middle part of the upper end rib of tower body 2 standard knot, due to bottom the restriction of jack-up method and top standard knot on need two pulleys 12 are installed respectively and ensure with standard knot and pivoting support 4 non-interference, separately be provided with a pulley 12 in tower body 2 standard knot upper surface middle part topmost, steel rope 11 is walked around pulley 12 and is connected to the bottom of stock 3 downwards; The height of reel 10 ensures that lower end steel rope 11 is in horizontality.Stock 3 is fixed with the roller 13 rolled on tower body 2, and during jacking campaign, stock 3 upper roller 13 can play directional tagging and replace cliding friction to reduce jacking resistance with friction of rolling.
By regulating the running velocity of oil cylinder in motor speed matching fluid pressing system during jacking campaign, the jacking speed of tower machine namely effectively can be increased.Electrical motor can be used during decline to drive steel rope to carry out the dismounting of tower machine, can effectively raise the efficiency.
Claims (4)
1. a tower machine jack-up system for electrohydraulic mixed power, it comprises the underframe (1), the tower body (2) be made up of multiple standard knot in fixed frame (1) and the stock (3) be sleeved on tower body (2) that fix on the ground; Described stock (3) top is provided with pivoting support (4) and tower cap (5); Described pivoting support (4) is provided with arm (6) and equilibrium arm (7); Described stock (3) is also provided with hydraulic jacking system, and the hydraulic power unit (8) in hydraulic jacking system is fixed on stock (3);
It is characterized in that: also comprise electric power jack-up system, described electric power jack-up system comprises,
The electrical motor (9) fixed on the ground, the reel (10) be connected with electrical motor (9), on along the fixing up and down multiple pulleys (12) of tower body (2) with walk around described pulley (12) for controlling the steel rope (11) of stock (3) jacking and decline;
Described steel rope (11) one end is fixed and around on reel (10), the upper end that the other end walks around tower body (2) is connected with stock (3).
2. the tower machine jack-up system of a kind of electrohydraulic mixed power according to claim 1, it is characterized in that: at the middle part of the upper end rib of described tower body (2) each standard knot, a pulley (12) is respectively installed, also be provided with a pulley (12) in tower body (2) standard knot upper surface middle part topmost, described steel rope (11) is walked around pulley (12) and is connected to the bottom of stock (3) downwards.
3. the tower machine jack-up system of a kind of electrohydraulic mixed power according to claim 1, is characterized in that: be fixed with on described stock (3) at the upper roller (13) rolled of tower body (2).
4. the tower machine jack-up system of a kind of electrohydraulic mixed power according to claim 1, is characterized in that: the height of described reel (10) need make lower end steel rope (11) be in horizontality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169944.1A CN103950842B (en) | 2014-06-06 | 2014-06-06 | A kind of tower machine jack-up system of electrohydraulic mixed power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169944.1A CN103950842B (en) | 2014-06-06 | 2014-06-06 | A kind of tower machine jack-up system of electrohydraulic mixed power |
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| Publication Number | Publication Date |
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| CN103950842A CN103950842A (en) | 2014-07-30 |
| CN103950842B true CN103950842B (en) | 2016-04-27 |
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| CN201410169944.1A Active CN103950842B (en) | 2014-06-06 | 2014-06-06 | A kind of tower machine jack-up system of electrohydraulic mixed power |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105384088B (en) * | 2015-11-04 | 2017-08-29 | 徐州建机工程机械有限公司 | A kind of tower crane rocker-arm Inner climbing structures and its jacking method |
| CN106555503A (en) * | 2016-11-29 | 2017-04-05 | 中国铁塔股份有限公司长春市分公司 | A kind of multifunctional signal pylon |
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| GB907549A (en) * | 1959-03-07 | 1962-10-10 | Foeneter S A | A tower crane for use on a building site |
| GB925846A (en) * | 1960-06-17 | 1963-05-08 | Foeneter S A | A tower crane |
| CN2466125Y (en) * | 2001-02-28 | 2001-12-19 | 长沙中联重工科技发展股份有限公司 | Self-lifting internal creeping lifting-up system |
| CN2486529Y (en) * | 2001-06-19 | 2002-04-17 | 胡建锋 | Internal climbing jacket frame lifting mechanism |
| CN2488893Y (en) * | 2001-08-10 | 2002-05-01 | 王震山 | Hydraulic lifting device for tower crane |
| CN1666948A (en) * | 2005-01-21 | 2005-09-14 | 魏纯玉 | Inside climbing tower crane with multi-hook and deep well winch |
| CN201553565U (en) * | 2009-05-08 | 2010-08-18 | 哈尔滨东建机械制造有限公司 | Low-temperature tower crane |
| CN201961997U (en) * | 2010-12-16 | 2011-09-07 | 广西建工集团建筑机械制造有限责任公司 | Electric driven platform for tower crane inner frame lifting operation |
| CN102491186A (en) * | 2011-12-19 | 2012-06-13 | 中联重科股份有限公司 | Tower crane |
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2014
- 2014-06-06 CN CN201410169944.1A patent/CN103950842B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907549A (en) * | 1959-03-07 | 1962-10-10 | Foeneter S A | A tower crane for use on a building site |
| GB925846A (en) * | 1960-06-17 | 1963-05-08 | Foeneter S A | A tower crane |
| CN2466125Y (en) * | 2001-02-28 | 2001-12-19 | 长沙中联重工科技发展股份有限公司 | Self-lifting internal creeping lifting-up system |
| CN2486529Y (en) * | 2001-06-19 | 2002-04-17 | 胡建锋 | Internal climbing jacket frame lifting mechanism |
| CN2488893Y (en) * | 2001-08-10 | 2002-05-01 | 王震山 | Hydraulic lifting device for tower crane |
| CN1666948A (en) * | 2005-01-21 | 2005-09-14 | 魏纯玉 | Inside climbing tower crane with multi-hook and deep well winch |
| CN201553565U (en) * | 2009-05-08 | 2010-08-18 | 哈尔滨东建机械制造有限公司 | Low-temperature tower crane |
| CN201961997U (en) * | 2010-12-16 | 2011-09-07 | 广西建工集团建筑机械制造有限责任公司 | Electric driven platform for tower crane inner frame lifting operation |
| CN102491186A (en) * | 2011-12-19 | 2012-06-13 | 中联重科股份有限公司 | Tower crane |
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| CN103950842A (en) | 2014-07-30 |
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