CN201359061Y - Harmonic-wave transmission speed reducer of tooth-shaped chain - Google Patents
Harmonic-wave transmission speed reducer of tooth-shaped chain Download PDFInfo
- Publication number
- CN201359061Y CN201359061Y CNU2009201139444U CN200920113944U CN201359061Y CN 201359061 Y CN201359061 Y CN 201359061Y CN U2009201139444 U CNU2009201139444 U CN U2009201139444U CN 200920113944 U CN200920113944 U CN 200920113944U CN 201359061 Y CN201359061 Y CN 201359061Y
- Authority
- CN
- China
- Prior art keywords
- tooth
- speed reducer
- harmonic
- shaped chain
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H49/00—Other gearings
- F16H49/001—Wave gearings, e.g. harmonic drive transmissions
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- Retarders (AREA)
Abstract
The utility model relates to a mechanical transmission speed reducer, in particular to a harmonic-wave transmission speed reducer of a tooth-shaped chain. The characteristics of the harmonic-wave transmission speed reducer are as follows: on the basis of the structure of the harmonic-wave gear transmission speed reducer, a flexible gear is replaced by the tooth-shaped chain, the tooth-shaped chain is dynamically matched with a bearing which is arranged on a wave generator in a transmission manner, and teeth on the tooth-shaped chain are meshed with rigid wheel teeth on a low-speed shaft belt rigid wheel in a transmission manner; the tooth-shaped chain is a closed ring-shaped chain which is composed by the connection of a plurality of small sheets, two teeth are arranged on the small sheets, two pin holes are arranged on each small sheet, and pin shafts are arranged in the pin holes, so as to form the harmonic-wave transmission speed reducer of the tooth-shaped chain. By adopting the pin chain structure, the ring-shaped tooth-shaped chain does not have alternating stress, so as to thoroughly solve the difficult problem of short service life of the flexible gear; the size of the tooth-shaped chain can be larger, so as to transmit large power, thereby leading possible manufacturing of the harmonic-wave gear transmission speed reducer with high speed ratio and large torque; moreover, the structure is simple, the volume is small, the weight is light, the manufacturing cost is low, and energy resources are saved.
Description
Technical field
The utility model relates to the mechanical transmission retarder, particularly can reduced volume, and weight reduction reduces the silent chain harmonic wave drive speed reducer of manufacture cost and energy saving.
Background technique
At present, existing power is at the Harmonic Gears retarder of several specifications below 6 kilowatts on the market, and its basic structure is to comprise flexbile gear, firm wheel, high speed shaft, lower velocity shaft, housing, front and rear cover, bearing and connecting bolt etc.The deadly defect of Harmonic Gears is that the working life of key components and parts flexbile gear is short, because under the effect of wave-generator, flexbile gear is in the periodicity resiliently deformable all the time, bear the effect of alternating stress, operating conditions is poor, and flexbile gear is in operation because the flexbile gear wall is overtired, wall is cracked, along with the intensification of crackle, can cause the inefficacy of flexbile gear, so working life is short.In order to reduce the elastic resistance of flexbile gear, the flexbile gear wall can not be done too thickly, has therefore influenced the transmission of torsion.This also is also not have the principal element of emergent power greater than the Harmonic Gears retarder more than 6 kilowatts in the world so far.Some need the industry of large speed ratio, high-power retarder, often several gear reducers are cascaded and are used, bench as one 20 cun, reduction speed ratio is 6800, and 160 kilowatts on motor needs each 1 on secondary gear reducer 3600 types, 1700 types and 1000 types to be cascaded, about 130 tons of gross weight, ten thousand yuan of cost 250-350, floor space is big, and cost is quite high.
The model utility content
The purpose of this utility model is at above-mentioned defective, and a kind of silent chain harmonic wave drive speed reducer is provided.
The technical solution of the utility model is the silent chain harmonic wave drive speed reducer, comprise casing 1, just wheel, protecgulum 4, slow axis band just wheel 5, back cover tape just taken turns 9, high speed shaft 12, wave-generator 13 and flexbile gear, it is characterized in that said flexbile gear be silent chain 15 be installed on the wave-generator 13 bearing 14 transmissions movingly, the tooth on the silent chain 15 and slow axis band just on the wheel 5 just the gear teeth mutually transmission mesh.
Said silent chain 15 is the small pieces that 2 teeth arranged by some on it, and 2 pin-and-holes are arranged on every small pieces, has bearing pin to connect into the endless chain of a sealing in the pin-and-hole.
The utility model has the advantages that with annular silent chain to substitute flexbile gear, because annular silent chain is the pin chain structure, is not have alternating stress to produce theoretically, thereby thoroughly solves a flexbile gear short difficult problem in working life; In addition, silent chain can be made large-size, makes it to transmit high-power, and this becomes possibility with regard to making the harmonic wave drive speed reducer of making large speed ratio, high pulling torque; Simple in structure, volume is little, and is in light weight, low cost of manufacture, energy saving.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the gear piece shape figure of silent chain.
Fig. 3 is a silent chain transmission fundamental diagram.
Embodiment
Further specify embodiment below in conjunction with accompanying drawing.
With reference to Fig. 1, Fig. 2,1-casing, 2 radial bearings, 3-spacer sleeve, 4-protecgulum, 5-slow axis band are just taken turns, behind the 6-seal ring, 7-hexagon socket head cap screw, 8-hex head bolt, 9-cover tape just take turns, 10-radial bearing, 11-seal ring, 12-high speed shaft, 13-wave-generator, 14-ball bearing, 15-silent chain, 16-suspension ring.As shown, innovative point of the present utility model be with flexbile gear be improved to silent chain 15 be installed on the wave-generator 13 bearing 14 transmissions movingly, the tooth on the silent chain 15 and slow axis band just the firm gear teeth on the wheel 5 mutually transmission mesh; Silent chain 15 is made the small pieces that 2 teeth arranged by some on it, 2 pin-and-holes on every small pieces gear piece, and the bearing pin in the pin-and-hole connects into the endless chain of a sealing.Silent chain 15 is to be in humorous wavy chain when work, constitutes the silent chain harmonic driving.
With reference to Fig. 3, be silent chain transmission fundamental diagram.14-ball bearing, 15-silent chain, 17-just take turns.In conjunction with Fig. 1, as shown, ball bearing 14 is thin-walled deep groove ball bearings, is exactly flexible bearing, is installed on the wave-generator 13, and wave-generator 13 is cam wave-generators.Silent chain transmission working principle is the same with the Harmonic Gears working principle.Harmonic Gears is the novel mechanical transmission that a kind of controlled elasticity deformation wave that relies on flexible gear to produce is come transmitting movement and power, the cam wave-generator that flexible bearing is housed is active, flexbile gear is driven, the back cover tape just firm wheel 17 of wheel 9 is fixed, after wave-generator is packed flexbile gear into, force the deformation of flexible wheel of circular original section, the tooth at its major axis two ends meshes fully with the tooth of just taking turns, the tooth of minor axis is then thrown off fully with firm wheel, tooth between major and minor axis then is in half engagement, when wave-generator rotates continuously, force the major and minor axis of flexbile gear constantly to change distortion, the tooth at major axis two ends is constantly meshed, if many 2 teeth of the gear ratio flexbile gear of firm wheel, then wave-generator turns around, and flexbile gear has relatively just been taken turns and turned over 2 teeth more.And the silent chain harmonic driving different with Harmonic Gears be to substitute flexbile gear with an annular silent chain.Flexbile gear is the integral body of a band external tooth, silent chain then is the small pieces that two teeth arranged by some, have 2 holes to connect into the endless chain of a sealing with bearing pin on the sheet, flexbile gear is the gear that is in the harmonic wave state when work, and is to be in humorous wavy chain during silent chain work.Engagement and the situation of throwing off when showing the silent chain transmission among the figure.Harmonic Gears is big with its velocity ratio, wide ranges, and under the same conditions, the component of comparable general gear reducer reduce half, and volume and weight can reduce 20%-50%, have bearing capacity greatly, advantage such as moving equilibrium, noise be low.Deadly defect in the Harmonic Gears is the manufacturing and the life-span of flexbile gear.Because the working life of flexbile gear is short, develop annular silent chain and substitute flexbile gear, because annular silent chain is the pin chain structure, does not have alternating stress, thereby thoroughly solve the life-span difficult problem of flexbile gear; In addition, silent chain can be made large-size, thereby can transmit high-powerly, makes the harmonic wave drive speed reducer of making large speed ratio, high pulling torque become possibility.
Claims (2)
1, silent chain harmonic wave drive speed reducer, comprise that casing (1), protecgulum (4), slow axis band are just taken turns (5), the back cover tape is just taken turns (9), high speed shaft (12), wave-generator (13) and flexbile gear, it is characterized in that said flexbile gear be silent chain (15) be installed on the wave-generator (13) bearing (14) transmission movingly, the tooth on the silent chain (15) and slow axis band just take turns (5) go up firm gear teeth mutually transmission mesh.
2, according to the said silent chain harmonic wave drive speed reducer of claim 1, it is characterized in that said silent chain (15) is the small pieces that 2 teeth arranged by some on it, 2 pin-and-holes are arranged on every small pieces, there is bearing pin to connect into the endless chain of a sealing in the pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139444U CN201359061Y (en) | 2009-02-14 | 2009-02-14 | Harmonic-wave transmission speed reducer of tooth-shaped chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139444U CN201359061Y (en) | 2009-02-14 | 2009-02-14 | Harmonic-wave transmission speed reducer of tooth-shaped chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359061Y true CN201359061Y (en) | 2009-12-09 |
Family
ID=41424825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201139444U Expired - Fee Related CN201359061Y (en) | 2009-02-14 | 2009-02-14 | Harmonic-wave transmission speed reducer of tooth-shaped chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359061Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226463A (en) * | 2011-05-25 | 2011-10-26 | 深圳市琛玛华夏科技有限公司 | Novel speed reducer and speed reduction motor |
| CN104534045B (en) * | 2014-12-30 | 2017-01-04 | 田达 | A kind of spiral toothed chain decelerator |
-
2009
- 2009-02-14 CN CNU2009201139444U patent/CN201359061Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226463A (en) * | 2011-05-25 | 2011-10-26 | 深圳市琛玛华夏科技有限公司 | Novel speed reducer and speed reduction motor |
| CN104534045B (en) * | 2014-12-30 | 2017-01-04 | 田达 | A kind of spiral toothed chain decelerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20110214 |