CN201313796Y - Planet differential transmission hoisting mechanism of tower crane - Google Patents
Planet differential transmission hoisting mechanism of tower crane Download PDFInfo
- Publication number
- CN201313796Y CN201313796Y CNU2008201592482U CN200820159248U CN201313796Y CN 201313796 Y CN201313796 Y CN 201313796Y CN U2008201592482 U CNU2008201592482 U CN U2008201592482U CN 200820159248 U CN200820159248 U CN 200820159248U CN 201313796 Y CN201313796 Y CN 201313796Y
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- Prior art keywords
- differential
- speed
- lifting mechanism
- planet
- hoisting mechanism
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Abstract
The utility model relates to a planet differential transmission hoisting mechanism of a tower crane. The hoisting mechanism is arranged in a U shape; the axes of two vertical motors are arranged in parallel in the vertical direction; each vertical motor drives a saw-tooth speed reducer; the two saw-tooth speed reducers are connected by two horizontal shafts; the joint between the two horizontal shafts is provided with a differential planet speed reducer; and the differential planet speed reducer is sleeved in a differential reel. The planet differential transmission hoisting mechanism has the advantages that the structure is compact and more symmetrical, the differential reel can be enlarged, the speed thresholds are quite many, the speed variation is stable and the reliability is good.
Description
Technical field
The utility model relates to one and overlaps the planet differential transmission lifting mechanism that is applied on the tower crane.
Background technology
On the tower crane of widespread use, the composition layout pattern of lifting mechanism mainly adopts II shape to arrange and L shaped layout; The mode of speed control of lifting mechanism mainly contains: magnetic clutch gear shift speed governing, change speed motor pole changing speed control, frequency-adjustable speed-adjustable etc.
It is the traditional layout pattern of lifting mechanism that II shape is arranged, is applicable to the lifting mechanism of Xiao Rong rope amount, and for the lifting mechanism of Da Rong rope amount, its reel can only be done for a short time and grow.The lifting mechanism of this layout pattern, the wiring radius is little, and the steel rope screen resilience is big, and the raising line deflection angle is big, easily disorder cable; And the wiring radius is little, and the steel rope flexure stress is big, and fracture by fatigue easily takes place.The lifting mechanism of L shaped layout has overcome II shape and arrange to have held the little shortcoming of rope amount, but its motor, drg, reductor be all in the same side of reel, as wants reel centering, and monolateral stand under load is more serious, and is unfavorable to the equilibrium arm stand under load.
The single speed winding motor lifting mechanism that the magnetic clutch gear shift adds eddy-current brake is that China uses lifting mechanism early, and short service life because of magnetic clutch, unreliable by the friction lining transmission, so dare not be with big load to come speed change, this has a strong impact on its application.The lifting mechanism of change speed motor pole changing speed control uses common reductor, and he is subjected to Power Limitation at the application on tower crane, should not be used for the bigger tower crane of output per litre.The frequency-adjustable speed-adjustable lifting mechanism does not need to switch winding in speed change by frequency control, is pulsation-free speed governing.This lifting mechanism needs variable-frequency motor and frequency converter, the cost height.
Summary of the invention
At the deficiency of above-mentioned situation, the utility model provides a kind of tower machine planet differential transmission lifting mechanism.This lifting mechanism is that U-shaped is arranged, the axis of two vertical machines vertically is arranged in parallel, two vertical machines respectively drive an awl tooth reductor, connect by two horizontal shafts between two awl tooth reductors, differential planetary reducer is equipped with in the junction of two horizontal shafts, and differential planetary reducer is enclosed within the differential reel.On differential planetary reducer and a horizontal shaft of boring between the tooth reductor, reductor is housed.
Vertical machine 1 drives awl tooth reductor 5, vertical machine 4 drives awl tooth reductor 6, awl tooth reductor 5 drives horizontal shaft 7 rotations, awl tooth reductor 6 drives horizontal shaft 8 rotations, two horizontal shafts are inserted in the reel from the two ends of differential reel 3 respectively, and two horizontal shafts connect by differential planetary reducer 9.Two horizontal shafts drive planetary reducer 9 motions, and the internally toothed annulus by differential planetary reducer 9 drives differential reel 3 rotations at last.On the horizontal shaft 7 between differential planetary reducer 9 and the 5 awl tooth reductors, reductor 2 is housed.Wherein differential planetary reducer 9 is connected with differential reel 3, and the rotating speed of differential reel depends on two rotating speed of motor and relative rotation direction; Addition is in the same way oppositely subtracted each other, and forms differential.
Its advantage is a compact conformation, and relatively more symmetrical, differential reel can be done greatly, and speed stage is more, and speed change is steady, good reliability.Such combination can form multiple output speed, can satisfy high speed light loading, low-speed heave-load.Its differential planetary reducer speed governing is effective, and noise is low, and transmitting ratio is big, is applicable to big-and-middle-sized tower crane.
Description of drawings
Fig. 1 tower machine planet differential transmission lifting mechanism structural representation.
Fig. 2 planetary differential transmission scheme drawing.
The specific embodiment
This Lift Mechanism in Power Hoist adopts two vertical installations of change speed motor, drum with fold line grooves, two rotating speed of motor and relative hand of rotation, addition are in the same way depended in planetary gear differential transmission, drum speed, oppositely subtract each other, form differential, thus the combination, can form multiple output speed, low-speed heave-load, high speed light loading.This mechanism's pattern is not tight to the reel dimensional characteristic, is fit to the use of Da Rong rope amount, high-rise building.Because planetary reducer is installed in reel inside, so compact conformation, volume is little, and is in light weight, and this mechanism's speed governing is steady, a plurality of gears capable of being combined.
Claims (3)
1, tower machine planet differential transmission lifting mechanism, comprise motor, awl tooth reductor, horizontal shaft, reductor, differential planetary reducer, it is characterized in that: this lifting mechanism is that U-shaped is arranged, the axis of two vertical machines vertically is arranged in parallel, two vertical machines respectively drive an awl tooth reductor, connect by two horizontal shafts between two awl tooth reductors, differential planetary reducer is equipped with in the junction of two horizontal shafts.
2, tower machine planet differential transmission lifting mechanism according to claim 1 is characterized in that differential planetary reducer is enclosed within the differential reel.
3, tower machine planet differential transmission lifting mechanism according to claim 1 is characterized in that on differential planetary reducer and a horizontal shaft of boring between the tooth reductor reductor being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201592482U CN201313796Y (en) | 2008-11-18 | 2008-11-18 | Planet differential transmission hoisting mechanism of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201592482U CN201313796Y (en) | 2008-11-18 | 2008-11-18 | Planet differential transmission hoisting mechanism of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201313796Y true CN201313796Y (en) | 2009-09-23 |
Family
ID=41125587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201592482U Expired - Fee Related CN201313796Y (en) | 2008-11-18 | 2008-11-18 | Planet differential transmission hoisting mechanism of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201313796Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887450A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Heavy-load and light-load dual-purpose hydraulic umbilical winch |
| CN105110221A (en) * | 2015-08-25 | 2015-12-02 | 江苏科技大学 | Differential planetary reducer for crane |
| CN106284225A (en) * | 2015-05-29 | 2017-01-04 | 湖北省咸宁三合机电制业有限责任公司 | The double suspension centre winch hoist of a kind of multi-speed |
-
2008
- 2008-11-18 CN CNU2008201592482U patent/CN201313796Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887450A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Heavy-load and light-load dual-purpose hydraulic umbilical winch |
| CN106284225A (en) * | 2015-05-29 | 2017-01-04 | 湖北省咸宁三合机电制业有限责任公司 | The double suspension centre winch hoist of a kind of multi-speed |
| CN105110221A (en) * | 2015-08-25 | 2015-12-02 | 江苏科技大学 | Differential planetary reducer for crane |
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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: 20090923 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |