CN103523690A - Hoisting mechanism with built-in harmonic gear - Google Patents
Hoisting mechanism with built-in harmonic gear Download PDFInfo
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- CN103523690A CN103523690A CN201310212299.2A CN201310212299A CN103523690A CN 103523690 A CN103523690 A CN 103523690A CN 201310212299 A CN201310212299 A CN 201310212299A CN 103523690 A CN103523690 A CN 103523690A
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- gear
- harmonic
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- winding drum
- shaft
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Abstract
Disclosed is a hoisting mechanism with a built-in harmonic gear. The hoisting mechanism is characterized in that the back end of a motor shaft is connected with a brake, the front end of the motor shaft is connected with a left supporting frame through a flange and connected with a walking trolley frame through a foundation bolt, a synchronous toothed small belt pulley is installed on a motor output shaft, and a toothed belt is connected with a large belt pulley and then connected with an input shaft of a harmonic drive reducer installed in a winding drum; the input shaft of the harmonic drive reducer is connected with a harmonic drive wave generator through a key; a flexible gear is meshed with a rigid gear and then connected with the rigid gear; the rigid gear is connected with a drum body of the winding drum through a bolt, the left end of the winding drum is supported against the left supporting frame through an end cover and a bearing, the right end of the winding drum is supported against a right support of the winding drum through a shaft, the rigid gear drives the winding drum to rotate when rotating, the flexible gear is fixedly connected with the left supporting frame through a connecting shaft and the key and kept static, a harmonic drive device is arranged in the winding drum through an end cover and a right end cover in a sealed mode so as to facilitate lubrication and sealing, and sealing is conducted through a sealing cover due to driving of the toothed belt. The hoisting mechanism with the built-in harmonic gear is small in size, low in energy consumption and capable of greatly improving production efficiency.
Description
Technical field
The present invention relates to hoisting crane field, especially a kind of built-in harmonic gear formula lifting mechanism.
Background technology
The version that traditional beam type bridge crane hoisting mechanism is mainly used has two kinds, the arrangement that the first adopts electrical motor to parallel with cylinder axis, this arrangement advantage is simplicity of design, the coupling of each parts is selected also more convenient but its shortcoming is a lot: (1) each parts support respectively, this just requires trolley frame must have enough strength and stiffness, the deadweight of trolley frame is increased, and the difference install and adjust of each parts also bother.(2) because electrical motor parallels with cylinder axis, make integral structure loose, the total area of trolley frame is also larger, and the spatial volume of lifting mechanism is large.(3) reel length is longer, and L/D ratio is large, the low easy fracture of long and thin drum strength.(4) parts of whole lifting mechanism are more, and weight is large, especially YZR electrical motor and PJ type cylinder gear speed reducer, and also the driving torque of its electrical motor is large.
Its two, be that electrical motor and reel are arranged in the two ends of coaxial line retarder (being often common planetary reduction gear or planetary speed reducer with small tooth number difference), or retarder is arranged in to reel inside by the arrangement that is in line of motor reducer and reel.This structure has overcome above-mentioned shortcoming substantially, but that the transmitting ratio of its retarder can not be obtained is very large, otherwise drum diameter will increase, and machine volume can be very large, makes it still not overcome the large shortcoming of the large energy consumption of the large weight of motor torque.
Summary of the invention
In order to solve traditional shortcoming that lifting mechanism volume is excessive, weight is excessive, energy consumption is high, the invention provides a kind of built-in harmonic gear formula lifting mechanism, not only volume is little, and energy consumption is little.
Described a kind of built-in harmonic gear formula lifting mechanism, it is characterized in that: by motor reel rear end connecting brake, front end is connected with left socle and walking dolly frame respectively by flange and holding-down bolt, synchronizing jugged small pulley is installed on motor output shaft, cog belt connect after large belt wheel be arranged on reel in the input shaft of harmonic wave drive speed reducer be connected; Input shaft connects the wave producer of harmonic drive by key; Flexbile gear is connected firm wheel with after the engagement of just having taken turns; Just wheel connects with bobbin trunk by bolt, and reel left end is bearing on left socle by end cap and bearing, right-hand member is bearing on reel right support abutment by axle, the just rotation of wheel is just with movable reel to rotate, flexbile gear is connected firmly and is kept static by coupling spindle and key and left socle, and harmonic drive is enclosed in reel by end cap and right end cap, be convenient to lubricated and sealing, cog belt transmission seals by seal closure.
The invention has the beneficial effects as follows: not only volume is little, and energy consumption is little, can increases substantially production efficiency.
Accompanying drawing explanation
fig. 1 isbuilt-in harmonic gear formula lifting mechanism schematic diagram.
Wherein, 1. drg; 2. electrical motor; 3. left socle; 4. small pulley; 5. cog belt; 6. seal closure; 7. large belt wheel; 8. input shaft; 9. end cap; 10. coupling spindle; 11. keys; 12. wave producers; 13. bearings; 14. flexbile gears; 15. have just taken turns; 16. right end caps; 17. reels; 18. drum shaft; 19. bearings; 20. trolley frames.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed.
Described a kind of built-in harmonic gear formula lifting mechanism, by electrical motor 2 shaft rear end connecting brakes 1, front end is connected with left socle 3 and walking dolly frame 20 respectively by flange and holding-down bolt, synchronizing jugged small pulley 4 is installed on electrical motor 2 output shafts, cog belt 5 connect after large belt wheel 7 be arranged on reel in the input shaft 8 of harmonic wave drive speed reducer be connected; Input shaft 8 connects the wave producer 12 of harmonic drive by key 11; After the engagement of flexbile gear 14 and just wheel 15, be connected firm wheel 15; Just wheel 15 connects with bobbin trunk 17 by bolt, and reel 17 left ends are bearing on left socle by end cap 9 and bearing 13, right-hand member is bearing on reel right support abutment 19 by axle 18, the just rotation of wheel 15 is just with movable reel 17 to rotate, flexbile gear 14 is connected firmly and keeps static with left socle 3 by coupling spindle 10 and key 11, and harmonic drive is enclosed in reel by end cap 9 and right end cap 16, be convenient to lubricated and sealing, cog belt 5 transmissions seal by seal closure 6.
Adopt Novel transmission mode speed end to adopt synchronous cog belt, then add Harmonic Gears, driving efficiency is high, and transmission stability is good, can reduce vibration and the impact of the operation process that hoists; The little quality of the volume of harmonic gear drive mechanism own is light, is installed in reel, has reduced gear reducer and reduction case, has greatly alleviated the weight of lifting mechanism, has also reduced the axial length of lifting mechanism; The transmitting ratio of Harmonic Gears is large, load-carrying capacity is high, therefore, can adopt the less drive motor of high torque (HT) of rotating speed, the model that makes the volume weight of motor reduce to reduce with price other drg also can correspondingly reduce to make lifting mechanism width to reduce, quality further alleviates compares common gear reducer, and the quality and the volume that contrast built-in harmonic gear formula lifting mechanism with traditional lifting mechanism can reduce approximately 30%.
Claims (1)
1. a built-in harmonic gear formula lifting mechanism, it is characterized in that: by motor reel rear end connecting brake, front end is connected with left socle and walking dolly frame respectively by flange and holding-down bolt, synchronizing jugged small pulley is installed on motor output shaft, cog belt connect after large belt wheel be arranged on reel in the input shaft of harmonic wave drive speed reducer be connected; Input shaft connects the wave producer of harmonic drive by key; Flexbile gear is connected firm wheel with after the engagement of just having taken turns; Just wheel connects with bobbin trunk by bolt, and reel left end is bearing on left socle by end cap and bearing, right-hand member is bearing on reel right support abutment by axle, the just rotation of wheel is just with movable reel to rotate, flexbile gear is connected firmly and is kept static by coupling spindle and key and left socle, and harmonic drive is enclosed in reel by end cap and right end cap, be convenient to lubricated and sealing, cog belt transmission seals by seal closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310212299.2A CN103523690A (en) | 2013-05-31 | 2013-05-31 | Hoisting mechanism with built-in harmonic gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310212299.2A CN103523690A (en) | 2013-05-31 | 2013-05-31 | Hoisting mechanism with built-in harmonic gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103523690A true CN103523690A (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310212299.2A Pending CN103523690A (en) | 2013-05-31 | 2013-05-31 | Hoisting mechanism with built-in harmonic gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103523690A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417416A (en) * | 2015-11-27 | 2016-03-23 | 河南新科起重机股份有限公司 | Light electric trolley for crane |
| CN107473097A (en) * | 2017-09-08 | 2017-12-15 | 芜湖市长江起重设备制造有限公司 | A kind of new lifting mechanism of bridge crane |
| CN112809405A (en) * | 2021-02-03 | 2021-05-18 | 江苏开璇智能科技有限公司 | Modular harmonic drive numerical control rotary table |
-
2013
- 2013-05-31 CN CN201310212299.2A patent/CN103523690A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417416A (en) * | 2015-11-27 | 2016-03-23 | 河南新科起重机股份有限公司 | Light electric trolley for crane |
| CN107473097A (en) * | 2017-09-08 | 2017-12-15 | 芜湖市长江起重设备制造有限公司 | A kind of new lifting mechanism of bridge crane |
| CN112809405A (en) * | 2021-02-03 | 2021-05-18 | 江苏开璇智能科技有限公司 | Modular harmonic drive numerical control rotary table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |