CN203728458U - Linkable hoisting mechanism of tower crane - Google Patents
Linkable hoisting mechanism of tower crane Download PDFInfo
- Publication number
- CN203728458U CN203728458U CN201420064898.4U CN201420064898U CN203728458U CN 203728458 U CN203728458 U CN 203728458U CN 201420064898 U CN201420064898 U CN 201420064898U CN 203728458 U CN203728458 U CN 203728458U
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- CN
- China
- Prior art keywords
- electric motor
- speed
- tower crane
- motor
- hoisting mechanism
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Abstract
The utility model specifically discloses a linkable hoisting mechanism of a tower crane. The linkable hoisting mechanism comprises two sets of hoisting mechanisms, wherein one set of hoisting mechanism comprises a single-speed motor, a first reduction gear and a first drum; the other set of the hoisting mechanism comprises a two-speed motor, a second reduction gear and a second drum; the first and second rums are respectively wound with multiple circles of steel wire rope; the steel wire rope winds around a steering pulley, a load trolley and a lifting hook at the arm end of the hoisting mechanism. The single-speed motor and the two-speed motor are connected with the controller. According to the linkable hoisting mechanism of the tower crane, two hoisting mechanisms are used, the two drums and the lifting hook and the trolley of the tower crane are stringed by the steel sire rope, so that more steel sire rope can be contained, and thus the requirement of the tower crane on the length of the steel wire rope is met. The linkable hoisting mechanism of the tower crane adopts the two hoisting mechanisms with different steel wire rope speeds, so that speed regulation can be easy to achieve by means of combination of the steel wire rope speeds.
Description
Technical field
The utility model relates to the two lifting mechanisms of a kind of tower crane linkage.
Background technology
General tower crane adopts a lifting mechanism, two lifting mechanisms of some employings are also to drive respectively main hook and auxiliary hook, is separate running;
Sometimes building engineering is higher, and a lifting mechanism is owing to being subject to the restriction of reel size, and steel rope holds rope amount and is restricted, the desired height of out of reach engineering; Situation is in addition subject to exactly steel rope and holds rope quantitative limitation, and having arrived certain altitude can only have four ropes to change two rope uses into afterwards, thus the biggest lifting capacity of out of reach designing requirement;
One of the characteristic that hoists of tower crane is heavy-duty low-speed, high speed light loading, for weight is in place, accurately also has minimum speed requirement, therefore in engineering, the several different methods such as change speed motor, DC machine, coiling electric motor speed governing and frequency conversion in order to obtain multiple different lifting velocity, have been taked, the bad impact of some effects is large, and some costs are higher.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide the two lifting mechanisms of a kind of tower crane linkage and speed regulating method, this device can solve hold rope amount again can very economical, realize very easily the method for multiple lifting velocity.
For achieving the above object, the utility model is taked following technical scheme:
The two lifting mechanisms of tower crane linkage, comprise two cover lifting mechanisms, and wherein a set of structure that hoists comprises electric motor I, reductor I and reel I; The another set of structure that hoists comprises electric motor I I, reductor II and reel II, one end of described reel I connecting steel wire ropes, and steel rope is walked around after deflection sheave, loading trolley and the suspension hook of crane arm arm end, II is connected with reel, by controlling turning to and start and stop of electric motor I, electric motor I I, obtain different velocity composition.
Described electric motor I, electric motor I I are single speed motor or two speed motor.
Described single speed motor, two speed motor are connected with controller.
Adopt two physically lifting mechanisms independently, by electric system, according to the job requirement of tower machine, distribute turning to rotating speed of Liang Ge mechanism motor to reach and realize different lifting velocities and increase the object of holding rope amount.
The speed regulating method of the described two lifting mechanisms of tower crane linkage, as follows:
When electric motor I, electric motor I I are single speed motor, the speed of electric motor I is V
1, the speed of electric motor I I is V
2, by combination, obtain four speed, i.e. electric motor I motion, electric motor I I does not move, and obtains speed V
1; Electric motor I is not moved, and electric motor I I motion, obtains speed V
2; Electric motor I, electric motor I I switched in opposite, obtains speed V
1+ V
2; Electric motor I motion; Electric motor I I turns to identical, obtains speed V
1-V
2;
When electric motor I is single speed motor, electric motor I I while being two speed motor, the speed of electric motor I is V
1, the speed of electric motor I I is V
2, V
3, by combination, obtain 7 speed, i.e. electric motor I motion, electric motor I I does not move, and obtains speed V
1; Electric motor I is not moved, and electric motor I I motion, obtains speed V
2, V
3; Electric motor I, electric motor I I switched in opposite, obtains speed V
1+ V
2, V
1+ V
3; Electric motor I motion, electric motor I I turns to identical, obtains speed V
1-V
2, V
1-V
3;
When electric motor I is two speed motor, electric motor I I while being two speed motor, the speed of electric motor I is V
1, V
2, the speed of electric motor I I is V
3, V
4, by combination, obtain 12 speed, i.e. electric motor I motion, electric motor I I does not move, and obtains speed V
1, V
2; Electric motor I is not moved, and electric motor I I motion, obtains speed V
3, V
4; Electric motor I, electric motor I I switched in opposite, obtains speed V
1+ V
3, V
1+ V
4, V
2+ V
3, V
2+ V
4; Electric motor I motion, electric motor I I turns to identical, obtains speed V
1-V
3, V
1-V
4, V
2-V
3, V
2-V
4.
The beneficial effects of the utility model are as follows:
1, conventional tower machine only has a lifting mechanism, and the utility model is selected two lifting mechanisms, and steel rope strings suspension hook, the dolly of two reels and tower machine, can contain more steel rope, thereby meets the requirement of tower machine to rope capacity;
2, conventional tower machine, in order to obtain more lifting velocity, is taked the various ways such as multipolar machine, coiling electric motor, DC machine, variable-frequency motor speed governing; Wherein multipolar machine is subject to the restriction of volume, generally will also just accomplish at most three-step timing, and impact greatly, can not meet the operating needs of big-and-middle-sized tower machine; Coiling electric motor speed governing is to be connected on rotor and to realize by resistance, reaches the object of speed governing by resistance heating consumed energy, neither energy-conservation, easily burns out again slip ring, works unreliable; And DC motor speed-regulating and frequency control all can increase very large cost; The lifting mechanism of two different steel rope linear velocities for the utility model, leans on the combination of its speed can realize easily speed governing: such as using the single speed motor of two friction speeds, by permutation and combination, can obtain four speed; If a single-speed motor and a double-speed motor combination can obtain seven speed in theory; The two speed motor that uses two friction speeds, can obtain 12 speed in theory, can meet the speed governing requirement of big-and-middle-sized most of tower machine completely, because big-and-middle-sized tower machine generally has five speed to meet the demands.
Accompanying drawing explanation
Fig. 1 is single speed lifting mechanism schematic diagram;
Fig. 2 is double-speed lifting structural scheme of mechanism;
Fig. 3 is the utility model wiring schematic diagram;
In figure: 1 electric motor I, 2 reductor I, 3 reel I, 4 electric motor I I, 5 reductor II, 6 reel II, 7 suspension hooks, 8 deflection sheavies, 9 steel ropes.
The specific embodiment
To of the present utility model, be described in detail in conjunction with the accompanying drawings and embodiments.
As shown in Figure 1, only have the lift system of a single speed motor, it comprises the lifting mechanism that single speed motor 1, reductor I2, reel I3 form, the output speed n of single speed motor 1
1, reductor I2 reduction ratio i
1, reel I3 diameter D
1, reel I3 output line speed v
1=n
1* π * D
1/ i
1, reel 3 holds rope amount L
1;
As shown in Figure 2, only have the lift system of a two speed motor, it comprises that two speed motor 4, reductor II5, reel II6 form lifting mechanism, and the output speed of electrical motor 4 is respectively n
2, n
3, reductor II5 reduction ratio i
2, reel II6 diameter D2, reel II6 output line speed v
2=n
2* π * D2/i
2, v
3=n
3* π * D2/i
2, rope capacity L
2.
As shown in Figure 3, two lifting mechanisms and operating mechanism are together in series.
Embodiment 1
The first set structure that hoists comprises single speed motor 1, reductor I2 and reel I3; The another set of structure that hoists comprises two speed motor 4, reductor II5 and reel II6, one end of reel I3 connecting steel wire ropes 9, and steel rope walks around after deflection sheave 8, loading trolley and the suspension hook 7 of lifting mechanism arm end, and II6 is connected with reel.Take root respectively in two reels in the two ends of hoist rope, steel rope is walked around deflection sheave, loading trolley and the suspension hook of transition pulley, arm end everywhere and realized two multiplying powers or four times of wirings (being illustrated as four multiplying power rope-winding methods).
Because steel rope can be walked around two reels, so Rong Shengliang is L
1+ L
2, met the needed rope capacity of Construction of High-rise, if use four multiplying power wirings can meet the requirement of the biggest lifting capacity.
By electrical equipment control Liang Ge mechanism electrical motor, can be that one of them stops or rotating, wherein electrical motor can be used rotation speed n
2or n
3, can be also to rotate simultaneously, can be also main story and reversion, steel rope 9 can be v by the obtainable linear velocity of permutation and combination
1, v
2, v
3, v
1+ v
2, v
1-v
2, v
1+ v
3, v
1-v
3totally seven kinds hoist or descending speed.
Embodiment 2
When electric motor I 1, electric motor I I4 are single speed motor, the speed of electric motor I is V
1, the speed of electric motor I I is V
2, by combination, obtain four speed, i.e. electric motor I motion, electric motor I I does not move, and obtains speed V
1; Electric motor I is not moved, and electric motor I I motion, obtains speed V
2; Electric motor I, electric motor I I switched in opposite, obtains speed V
1+ V
2; Electric motor I motion, electric motor I I turns to identical, obtains speed V
1-V
2;
Embodiment 3
When electric motor I is two speed motor, electric motor I I while being two speed motor, the speed of electric motor I is V
1, V
2, the speed of electric motor I I is V
3, V
4, by combination, obtain 12 speed, i.e. electric motor I motion, electric motor I I does not move, and obtains speed V
1, V
2; Electric motor I is not moved, and electric motor I I motion, obtains speed V
3, V
4; Electric motor I, electric motor I I switched in opposite, obtains speed V
1+ V
3, V
1+ V
4, V
2+ V
3, V
2+ V
4; Electric motor I motion, electric motor I I turns to identical, obtains speed V
1-V
3, V
1-V
4, V
2-V
3, V
2-V
4.
Two prevailing lifting mechanisms for the utility model, have realized multiple lifting velocity with minimum cost, meet the requirement of big-and-middle-sized tower machine to lifting velocity and Rong Shengliang.
Claims (3)
1. the two lifting mechanisms of tower crane linkage, is characterized in that: comprise two cover lifting mechanisms, wherein a set of structure that hoists comprises electric motor I, reductor I and reel I; The another set of structure that hoists comprises electric motor I I, reductor II and reel II, one end of described reel I connecting steel wire ropes, and steel rope walks around after deflection sheave, loading trolley and the suspension hook of crane arm arm end, and II is connected with reel; By controlling turning to and start and stop of electric motor I, electric motor I I, obtain different velocity composition.
2. the two lifting mechanisms of tower crane linkage as claimed in claim 1, is characterized in that: described electric motor I, electric motor I I are single speed motor or two speed motor.
3. the two lifting mechanisms of tower crane linkage as claimed in claim 2, is characterized in that: described single speed motor, two speed motor are connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064898.4U CN203728458U (en) | 2014-02-13 | 2014-02-13 | Linkable hoisting mechanism of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064898.4U CN203728458U (en) | 2014-02-13 | 2014-02-13 | Linkable hoisting mechanism of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728458U true CN203728458U (en) | 2014-07-23 |
Family
ID=51198547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420064898.4U Expired - Fee Related CN203728458U (en) | 2014-02-13 | 2014-02-13 | Linkable hoisting mechanism of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203728458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803434A (en) * | 2014-02-13 | 2014-05-21 | 山东大汉建设机械有限公司 | Linkage double hoisting mechanisms of tower crane and speed regulating method |
-
2014
- 2014-02-13 CN CN201420064898.4U patent/CN203728458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803434A (en) * | 2014-02-13 | 2014-05-21 | 山东大汉建设机械有限公司 | Linkage double hoisting mechanisms of tower crane and speed regulating method |
| CN103803434B (en) * | 2014-02-13 | 2016-01-20 | 山东大汉建设机械股份有限公司 | The two lifting mechanism of a kind of tower crane linkage and speed regulating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20160213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |