CN2133565Y - Moving tooth harmonic transmission drawing machine - Google Patents
Moving tooth harmonic transmission drawing machine Download PDFInfo
- Publication number
- CN2133565Y CN2133565Y CN 92216886 CN92216886U CN2133565Y CN 2133565 Y CN2133565 Y CN 2133565Y CN 92216886 CN92216886 CN 92216886 CN 92216886 U CN92216886 U CN 92216886U CN 2133565 Y CN2133565 Y CN 2133565Y
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- China
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- oscillating tooth
- moving tooth
- main shaft
- rope sheave
- utility
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Abstract
The utility model relates to a moving tooth harmonic transmission drawing machine, which has essential technical proposals that a reducing gear is changed into moving tooth harmonic transmission from worm transmission. The moving tooth harmonic transmission has the advantages of simple structure, small volume, light weight and low cost under the same load; the reducing gear and a rope pulley are coaxially arranged together, and thus the structure of the complete machine of the utility model is more compact; a bearing is arranged between the rope pulley and a base support frame, and thus a main shaft can not bear the functions of radial force and axial force, and the requirement to the main shaft is not high. The utility model is suitable for being used for elevators.
Description
The utility model relates to the drag device in the elevator.
Towing machine is one of most important equipment in the elevator, and present towing machine mainly is made up of motor, brake wheel, drop-gear box and rope sheave etc.Speed reduction gearing has wherein adopted the worm drive mode.Because worm drive relation and drive mechanism are very complicated, parts are many, and working accuracy and technological requirement are higher, therefore the machine volume of speed reduction gearing is big, Heavy Weight, processing technology is many, and cost and price is higher, usually drop-gear box and rope sheave are two parts, so the volume of the complete machine of whole towing machine is also bigger.Secondly because worm geared characteristics have determined the unloading mechanism of this towing machine must adopt interior load, be that bearing installation is between transmission main shaft and rope sheave, therefore transmission main shaft is with the effect of bearing radial force and axial force, this is just very high to the requirement of the diameter of main shaft and material, otherwise the main shaft fracture, consequence is hardly imaginable.
The purpose of this utility model provides a kind of oscillating tooth harmonic drive towing machine, and it can avoid above-mentioned deficiency.
Technical measures of the present utility model are:
1, changes its speed reduction gearing into the oscillating tooth harmonic drive by worm drive
Harmonic gear transmission device is a kind of more advanced driving device that occurs in recent years, it is made up of firm wheel, flexbile gear and wave producer, have simple in structure, the transmitting accuracy height, volume is little, characteristics such as in light weight and cost is low, because flexbile gear is to be made by the very thin elastomeric material of wheel body, easily produce the fracture by fatigue phenomenon, so it is not suitable for the load transmission, the transmission of only suitable position, the Harmonic Gears principle is seen Fig. 1.
Oscillating tooth harmonic drive in the utility model, it is improved a kind of driving device on the basis of Harmonic Gears, its improvement is: the cancellation flexbile gear, keep wave producer and firm wheel, and increase oscillating tooth and elastic damping circle, concrete structure is: the electric machine main shaft and the track adjusting wheel center of circle connect together, along radial equipartition oscillating tooth groove, oscillating tooth is embedded in the oscillating tooth groove on track adjusting wheel, and the afterbody of oscillating tooth is hook-type, claim pintle, the elastic damping snare is in the oscillating tooth pintle.The same with harmonic gear transmission device, the radial dimension of the wave producer in the oscillating tooth harmonic drive is slightly larger than the oscillating tooth diameter of bore.Assembling back oscillating tooth distributes along oscillating tooth groove ovalize.The wave producer rotation, the oscillating tooth of transverse is pushed along the oscillating tooth groove by the elastic damping circle, with firm tooth engagement; The minor axis place is pulled out by the elastic damping circle, throws off with firm tooth.The oscillating tooth of wave producer rotates a circle, oscillating tooth turns over the arc length of two tooth pitches in a circumferential direction with respect to firm tooth, finishes drive task, and is apparent, it had both kept the advantage of harmonic gear, had solved the FATIGUE FRACTURE PROBLEMS that the flexbile gear in the harmonic gear drive is produced in reverse load again.
2, because the oscillating tooth harmonic drive in the retarder has simple in structurely, and volume is little, lightweight characteristics can make speed reduction gearing attach together with traction rope sheave two element coaxials.
3, unloading mechanism changes external load into by interior load
So-called external load is meant that bearing installation is between rope sheave and bed frame.Be directly passed to bed frame from diametral load by bearing like this, make the not effect of bearing radial force and axial force of main shaft, a transmitting movement and moment of torsion, therefore less demanding to main shaft.
Adopt the towing machine of above technical measures, compared with prior art, have the following advantages:
1, retarder and rope sheave are attached together together, make complete machine compact more, driving efficiency improves, volume-diminished, weight saving.
2, the oscillating tooth harmonic drive is simple in structure, and tooling cost is low, and less demanding to transmission main shaft, makes the complete machine cost reduce greatly.
Further specify the utility model below in conjunction with accompanying drawing.
Fig. 1 is the Harmonic Gears principle schematic.
Fig. 2 is an oscillating tooth harmonic drive scheme drawing.
Fig. 3 is the cutaway view of Fig. 2 along the A-A line.
Fig. 4 is a structural representation of the present utility model.
Referring to Fig. 2-3, oscillating tooth harmonic drive (also being reductor) is made up of firm tooth 1, track adjusting wheel 2, elastic damping circle 3, producer 4 and oscillating tooth 5.Transmission main shaft 7 connects together with the center of circle of track adjusting wheel, and along radial equipartition oscillating tooth groove 6, the oscillating tooth groove is in the oscillating tooth groove on track adjusting wheel, and the afterbody of oscillating tooth is hook-type, claims pintle 8, and the elastic damping snare is in the oscillating tooth pintle.The radial dimension of wave producer is slightly larger than the oscillating tooth diameter of bore, and assembling back oscillating tooth distributes along oscillating tooth groove ovalize.The wave producer rotation, the oscillating tooth of transverse is along oscillating tooth groove and tooth engagement just; Throw off at the minor axis place.Wave producer rotates a circle, and oscillating tooth turns over the arc length of two tooth pitches in a circumferential direction with respect to firm tooth.
Oscillating tooth accounts for more than 35% of total number of teeth with firm tooth ingear tooth logarithm, and oscillating tooth is to pass through under the effect of damping ring along radial displacement at wave producer; With firm tooth engagement, the speed of relative motion is very low, so cal val is little, and temperature is low, during gear teeth relative motion, and the contact of gear teeth approaching face, so bearing capacity is big, stable drive, noise is low.
Referring to Fig. 4, because the oscillating tooth harmonic drive has simply, volume is little, lightweight advantage, therefore in present embodiment,, can be described as deceleration rope sheave 10 reductor and traction rope sheave 9 coaxial attaching together together, can make the utility model complete machine structure compact more like this, volume-diminished, driving efficiency height.
In addition, bearing 11 is installed between rope sheave and the base support 12.Diametral load from external load is directly passed to base support by bearing like this, makes transmission main shaft not a bearing radial force and an effect with power, a transmitting movement and moment of torsion.The 13rd, brake wheel, the 14th, motor.
Claims (1)
1, a kind of towing machine, it is made up of motor, brake wheel, speed reduction gearing and rope sheave, it is characterized in that:
(1), the structure of described speed reduction gearing is: wave producer, firm wheel, oscillating tooth and elastic damping circle are formed the oscillating tooth harmonic drive, the electric machine main shaft and the track adjusting wheel center of circle connect together, on track adjusting wheel along radial equipartition oscillating tooth groove, oscillating tooth is embedded in the oscillating tooth groove, the afterbody of oscillating tooth is hook-type, claim pintle, the elastic damping snare is in the oscillating tooth pintle, and the radial dimension of wave producer is slightly larger than the oscillating tooth diameter of bore;
(2), speed reduction gearing and rope sheave are coaxial is fitted together;
(3), bearing installation is between rope sheave and base support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216886 CN2133565Y (en) | 1992-09-01 | 1992-09-01 | Moving tooth harmonic transmission drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216886 CN2133565Y (en) | 1992-09-01 | 1992-09-01 | Moving tooth harmonic transmission drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133565Y true CN2133565Y (en) | 1993-05-19 |
Family
ID=33764924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92216886 Expired - Fee Related CN2133565Y (en) | 1992-09-01 | 1992-09-01 | Moving tooth harmonic transmission drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133565Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408883C (en) * | 2003-11-14 | 2008-08-06 | 辛洪兵 | Method for close contact of soft wheel and rigid wheel in harmonic driving and floating wave generator |
| CN110056637A (en) * | 2018-01-19 | 2019-07-26 | 陈仕贤 | Active-tooth transmission without output gap |
| CN116044971A (en) * | 2023-04-03 | 2023-05-02 | 山西新德福自动化科技有限公司 | High-precision ball screw transmission device and assembly method |
-
1992
- 1992-09-01 CN CN 92216886 patent/CN2133565Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408883C (en) * | 2003-11-14 | 2008-08-06 | 辛洪兵 | Method for close contact of soft wheel and rigid wheel in harmonic driving and floating wave generator |
| CN110056637A (en) * | 2018-01-19 | 2019-07-26 | 陈仕贤 | Active-tooth transmission without output gap |
| CN116044971A (en) * | 2023-04-03 | 2023-05-02 | 山西新德福自动化科技有限公司 | High-precision ball screw transmission device and assembly method |
| CN116044971B (en) * | 2023-04-03 | 2023-05-30 | 山西新德福自动化科技有限公司 | High-precision ball screw transmission device and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |