CN2059470U - Drive irrevesible decelerating machine - Google Patents
Drive irrevesible decelerating machine Download PDFInfo
- Publication number
- CN2059470U CN2059470U CN 89205353 CN89205353U CN2059470U CN 2059470 U CN2059470 U CN 2059470U CN 89205353 CN89205353 CN 89205353 CN 89205353 U CN89205353 U CN 89205353U CN 2059470 U CN2059470 U CN 2059470U
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- gear
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Abstract
The utility model discloses a drive irrevesible decelerating machine which is suitable for mechanical driving field and is used as a decelerating device which has high efficiency and good self locking performance. The decelerating machine mainly comprises a box body of decelerating machine, an input shaft, an output shaft of middle shaft, a bearing and driving gears which are a levorotatory helical gear and a dextrorotatory helical gear which are specially designed and appear in pairs. The driving wheel of the input shaft of the drive irrevesible decelerating machine can drive a driven wheel to freely rotate along the forward direction and the backward direction. The driven wheel of the output shaft can not drive the driving wheel to rotate. The utility model has high self locking performance. Compared with a common gear transmission, the transmission efficiency and the transmitted power are higher. Compared with a common decelerating machine with the same power, the decelerating machine of the utility model has small volume, simple structure and light weight.
Description
The irreversible speed reducer of the utility model transmission is applicable to mechanical transmission fields, makes the good retarder of high efficiency self-locking property and uses.
Widely used standard involute cylindrical gear in the mechanical transmission fields though efficiency of transmission is higher, does not have self-locking feature at present, and Worm and Worm Gear Driving, though realize self-locking, efficient is very low.
The purpose of this utility model is to design a kind of gear-driven high efficiency of common standard that both had, and has the novel driving mechanism of the latching characteristics of the worm drive of resembling again, utilizes this mechanism to provide a kind of novel transmission irreversible speed reducer.
The irreversible speed reducer of transmission is that existing gear and screw thread self-lock mechanism are being carried out deep theory analysis and experimental study, and it has been done to design on the basis of breakthrough development, and driving wheel can drive follower, otherwise then is in self-locking state.So-called irreversible transmission is meant that driving wheel can freely rotate by forward and reverse drive follower, follower then can not drive driving wheel and (just rotate, oppositely), for this speed reducer, input shaft can rotate by forward and reverse drive output shaft, output shaft then can not drive input shaft and rotate, promptly be in self-locking state, so it has the irreversible feature of this rotation is because of when driving wheel drives follower, its effect is made a concerted effort away from the cause of follower friction circle, otherwise and when follower drives driving wheel, its effect is made a concerted effort, and then is the friction circle by driving wheel, so be in self-locking state.This transmission device in the rated load of design, than the transmission efficiency height of common cylinder gear, utilizes this transmission device can be designed to all kinds speed reducer of different progression different drive ratios different capacity sizes.
The irreversible speed reducer of transmission takes following scheme to realize: the irreversible main structure of said speed reducer of transmission has the speed reducer casing, input shaft is installed successively: jack shaft, output shaft on the casing, bearing all is equipped with at the axle two ends, be installed on the bearing support of speed reducer casing, jack shaft can be designed to multistage according to required velocity ratio, two first order transmission driving wheels are installed on the input shaft, one is the left-handed spiral gear of active, another is an active right hand helix gear, and two left and right spiral gears that revolve of driving wheel can directly be processed on input shaft.Two respectively is equipped with the driven gear of a first order transmission on the jack shaft, one of them is meshed with the left-handed spiral gear of first order driving wheel for driven right hand helix gear, another is meshed with first order driving wheel right hand helix gear for driven left-handed spiral gear, and first order transfer driven gear suit is fixed on the jack shaft.The jack shaft middle part is equipped with two driving wheels that rotate the second level, one of them is left-handed spiral gear, another is the right hand helix gear, output sleeve is equipped with two of the driven gears that rotate the second level, the left-handed spiral gear of driving wheel that rotates for the right hand helix gear and the second level on the jack shaft is meshed, another is left-handed spiral gear, and the active right hand helix gear that rotates with the second level on the jack shaft is meshed.It is multistage that jack shaft and rotation spiral gear can require speed ratio to be designed to according to transmission.Because the transmitting gear of adorning on the rotatingshaft is designed to left and right a pair of spiral gear and has reduced end thrust, thereby the bearing of axle two ends dress is plain bearing, rotates spiral gear according to rotating the deceleration requirement, and to transfer power designs be single head or multi-head spiral gear.The irreversible speed reducer of transmission has following characteristics:
1, this speed reducer has the irreversible characteristic of transmission, and promptly input shaft can rotate by forward and reverse drive output shaft, and output shaft then can not drive input shaft and rotate, and promptly is in self-locking state.
2, because this speed reducer adopts is to transmit irreversible spiral gear, so the gear contact line length is not subjected to any restriction in principle, and the gear contact line length of common speed reducer is limited by the gear contact ratio.When realizing the design of transmission system equal strength, the driving gear of the utility model speed reducer structurally can design smaller and more exquisitely like this, thereby reaches under the situation of transmitting equal-wattage, and it is light that the common speed reducer of its weight ratio is wanted, and volume is little.
3, the spiral gear of this speed reducer employing, there is not Undercutting Phenomenon, and minimum number of spiral gear can be 1, and the minimum number of teeth of common gear to be subjected to Undercutting Phenomenon restriction minimum teeth number be 17, thereby under the situation that realizes same velocity ratio, this speed reducer is light and handy with ordinary gear speed reducer structure compared.
4, this reducer gear engagement process is compared with common reducer gear engagement process, and this machine gear engagement line always is in one side of node, so the characteristics that energy consumption is little, efficient is high are arranged.
5, simultaneously total number of teeth in engagement is much larger than general gear for this reducer gear, so stable drive, do not have impact, noise is little.
6, its processing method of the used spiral gear of this speed reducer is different fully with ordinary gear, ordinary gear will be processed with the higher gear machine of cost, and the spiral gear of this speed reducer is as long as can process the manufacturing efficiency height with engine lathe or milling machine, easy to process, be beneficial to the assurance precision.
7, this speed reducer spiral gear is designed to double rotational directions, and the mechanical property of having improved transmission system is cancelled out each other axial force, has simplified bearing structure.
8, after this decelerator seriesization, its watt level, velocity ratio, turnover shaft size etc. and assembling form are all consistent with common speed reducer, are convenient to the user and select for use.
9, this speed reducer does not all have specific (special) requirements to material therefor and cold and hot working technology, thereby easy to process, and cost is low.
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is the utility model structural representation.
With reference to the irreversible main structure of said speed reducer of accompanying drawing transmission speed reducer casing (1) is arranged, input shaft (2) is installed on the casing successively, jack shaft (3), output shaft (4), the axle two ends all are equipped with bearing (5) and are installed on the bearing support of speed reducer casing (1), and jack shaft (3) can be designed to the multi-stage speed-reducing transmission shaft according to required velocity ratio.Be processed with two first order driving wheels (A, A ') on the input shaft (2), A is left-handed spiral gear, A ' is the right hand helix gear, jack shaft (3) is gone up two the driven gear (B of first order transmission is housed, B '), B is that the driven right hand helix gear of first order transmission is meshed with the left-handed spiral gear of first order driving wheel (A), and B ' is the driven left-handed spiral gear of first order transmission and first order driving wheel right hand helix gear A ' be meshed.Jack shaft (3) middle part is equipped with two driving gear (C of second level transmission, C '), C is the left-handed spiral gear of the active of second level transmission, C ' is the active right hand helix gear of second level transmission, be set with two of the driven gears (D, D ') of second level transmission on the output shaft (4), D is that the driven right hand helix gear of second level transmission is meshed with the left-handed spiral gear of the active of second level transmission (C), and D ' is meshed with the active right hand helix gear (C ') of second level transmission for the driven left-handed spiral gear of second level transmission.The left and right sides spiral gear of jack shaft and transmission can require to be designed to multi-stage speed-reducing according to the transmission reduction speed ratio, the drving sprial gear that assembles on same transmission shaft all be designed to occur in pairs about revolve spiral gear.The drving sprial gear requires according to the transmission deceleration and through-put power can be designed to single head spiral gear or multi-head spiral gear.
Because the irreversible reductor of transmission has the transmission efficiency height, the self-locking irreversible property has also that volume is little, in light weight, efficient is high, noise is little, a structure advantage stably, can replace common reductor, is used for transmission system. Be applied to lifting appliance, such as crane, hoist engine, mine hoisting machinery etc., can save brake, thereby the mechanical electric system simplification is reached reduce cost, improve the reliability purpose. Present experimental prototype has been applied to crane gear and has reached predetermined purpose. Particularly ought use it on the aviation aircraft, also can reach weight reduction and reduce the purpose that volume improves the aircraft transport capacity, in a word because reductor has the not available a series of characteristics of common reductor, thereby it will replace common reductor in a series of fields and will be used widely.
Claims (3)
1, a kind of irreversible speed reducer of transmission with casing, input shaft, jack shaft, output shaft, bearing driving gear, it is characterized in that being equipped with on the input shaft two first order transmission driving wheels, one is the left-handed spiral gear of active, and another is an active right hand helix gear; Two respectively is equipped with a first order transfer driven gear on the jack shaft, one of them is meshed with the left-handed spiral gear of first order driving wheel for driven right hand helix gear, another is meshed with first order driving wheel right hand helix gear for driven left-handed wormand wheel, the jack shaft middle part is equipped with two driving wheels of second level transmission, one of them is left-handed spiral gear, and another is the right hand helix gear; Output sleeve is equipped with two of second level transfer driven gears, the left-handed spiral gear of active for the second level transmission on right hand helix gear and the jack shaft is meshed, another is left-handed spiral gear, be meshed with the active right hand helix gear of second level transmission on the jack shaft, jack shaft and drving sprial gear, can require to be designed to according to transmission speed ratio multistage, the drving sprial gear that assembles on same transmission shaft be paired appearance about revolve spiral gear.
2, the irreversible speed reducer of transmission according to claim 1 is characterized in that the left and right spiral gear that revolves of two actives on the input shaft can directly be processed on input shaft.
3, the irreversible speed reducer of transmission according to claim 1 is characterized in that the drving sprial gear requires according to the transmission deceleration and through-put power is single head or multi-head spiral gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89205353 CN2059470U (en) | 1989-08-31 | 1989-08-31 | Drive irrevesible decelerating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89205353 CN2059470U (en) | 1989-08-31 | 1989-08-31 | Drive irrevesible decelerating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2059470U true CN2059470U (en) | 1990-07-18 |
Family
ID=4862541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89205353 Withdrawn CN2059470U (en) | 1989-08-31 | 1989-08-31 | Drive irrevesible decelerating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2059470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154183B (en) * | 2014-07-31 | 2017-01-11 | 苏州市弘达仪表厂(普通合伙) | Speed reducing gear group with self-locking function and electric actuating mechanism |
-
1989
- 1989-08-31 CN CN 89205353 patent/CN2059470U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154183B (en) * | 2014-07-31 | 2017-01-11 | 苏州市弘达仪表厂(普通合伙) | Speed reducing gear group with self-locking function and electric actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |