CN201149067Y - Transmission device adopting special worm screw and roller worm wheel - Google Patents
Transmission device adopting special worm screw and roller worm wheel Download PDFInfo
- Publication number
- CN201149067Y CN201149067Y CNU2007201332160U CN200720133216U CN201149067Y CN 201149067 Y CN201149067 Y CN 201149067Y CN U2007201332160 U CNU2007201332160 U CN U2007201332160U CN 200720133216 U CN200720133216 U CN 200720133216U CN 201149067 Y CN201149067 Y CN 201149067Y
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- Prior art keywords
- roller
- worm
- worm screw
- transmission device
- worm gear
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Abstract
The utility model discloses a transmission device which adopts a special worm and a roller worm wheel, and comprises the worm and the roller worm wheel. The roller worm wheel comprises a worm wheel body and a roller combination, the roller combination is evenly distributed on a circumferential surface of the worm wheel body and arranged in a corresponding insert hole; the worm comprises a worm body and a spiral rectangular groove track formed by surrounding the worm body, and the pitch of the track is fixed and matched with the motion trajectory of the roller combination. The transmission device allows the whole motion process to be the rolling friction, thus improving the transmission efficiency, simultaneously reducing the wear generated by collision and self-grinding of rolling balls and prolonging the service life thereof.
Description
Technical field
The utility model relates to a kind of transmission device, particularly relates to a kind of transmission device that adopts special worm screw and roller worm gear.
Background technique
In the prior art, in the Worm and Worm Gear Driving device between the worm and wheel friction of Surface of action be sliding friction, the transmission efficiency of sliding friction is lower, can cause more power loss; In order to overcome such defective, produced the transmission device based on rolling friction such as ball worn transmission device, ball screw and hourglass worm cooperation roller, so just change into rolling friction by sliding friction, improved transmission efficiency greatly, but above-mentioned transmission device can only produce the straight line motion of driven member or reciprocal circular motion by rotatablely moving of worm screw, and can not make driven member produce continuous rotary motion.Thereby the application area of technique scheme generally is confined to produce in straight reciprocating motion or the reciprocating mechanism of circular arc, for example in the mechanisms such as steering box of the leading screw of lathe, automobile by rotatablely moving.
The model utility content
The purpose of this utility model is to provide a kind of special worm screw of employing that can improve transmission efficiency, reduce wear and increase the service life and the transmission device of roller worm gear.
The purpose of this utility model realizes by following technological scheme: a kind of transmission device that adopts special worm screw and roller worm gear, comprise worm screw and roller worm gear, it is characterized in that described roller worm gear comprises worm gear body and set of rollers zoarium, described set of rollers zoarium is uniformly distributed on the circumferential surface of worm gear body and is installed in the corresponding jack; Described worm screw comprises worm screw body and the helical rectangle groove track that forms around the worm screw body, and this track pitch is fixed and is suitable with the movement locus of set of rollers zoarium.
The utility model adopts the fit replacement of the set of rollers worm gear gear teeth of the prior art, matches with the worm screw track, makes whole movement process become rolling friction by traditional sliding friction, has improved transmission efficiency greatly.
Described set of rollers zoarium comprises that an end is installed on screw rod in the jack, is coated at bearing and bolt on the screw rod, and described bolt is tightened the other end of screw rod, and bearing is axially fixed on the screw rod.
Described set of rollers zoarium comprises that an end is installed on Roller Shaft in the jack, is coated at the bearing on the Roller Shaft and is stuck in jump ring in the Roller Shaft the other end annular groove, and described jump ring is axially fixed in bearing on the Roller Shaft.
The utility model set of rollers zoarium relatively simple for structure overcome in the conventional art owing to the worm gear gear teeth slide on the track of worm screw surface for a long time and caused deficiency than galling, prolonged the working life of worm gear.
Described bearing is needle bearing or ball bearing.
Described worm screw its channel suspending rail when rotating meshes simultaneously with two set of rollers zoariums at least.Worm screw is when rotating, and the distribution of set of rollers zoarium on worm gear body circumferential surface matches with worm screw track pitch at interval, makes worm and wheel transmission continuously to have guaranteed the normal operation of driving mechanism.
Compared with prior art, the utlity model has following significant effect:
1, in transmission process, the set of rollers zoarium rolls in the rigidity of doing around its axle, and sliding friction of the prior art is become rolling friction, has reduced surface friction drag, has improved transmission efficiency.
2, the bearing capacity of set of rollers zoarium is stronger, compares with the worm gear gear teeth of the prior art, has reduced mechanical wear and has prolonged working life.
3, the composition of set of rollers zoarium is simple in structure, and cost of production is lower.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model embodiment one a structural representation;
Fig. 2 is the integral installation figure of Fig. 1 the utility model embodiment one roller worm gear.
Among the figure, 1-worm screw, 2-roller worm gear, 3-worm gear body, 4-bearing, 5-Roller Shaft, 6-annular groove, 7-jump ring, 8-rectangle groove track, 9-worm screw body, 10-jack.
Embodiment
Embodiment one
As shown in Figures 1 and 2, the utility model adopts the transmission device of special worm screw and roller worm gear, comprise worm screw 1 and roller worm gear 2, roller worm gear 2 comprises worm gear body 3, bearing 4, Roller Shaft 5 and jump ring 7, on the circumferential end surfaces of worm gear body 3, be evenly distributed with several jacks 10, one end of Roller Shaft 5 inserts in this jack 10, bearing 4 is coated at Roller Shaft 5, the other end of Roller Shaft 5 has an annular groove 6, jump ring 7 is stuck in the annular groove 6, bearing 4 is axially fixed on the Roller Shaft 5, makes bearing 4 can not break away from Roller Shaft 5 and axially deviate from.
Worm screw 1 comprises worm screw body 9 and the helical rectangle groove track 8 that forms around worm screw body 9, this helical rectangle groove track 8 uses special purpose machine tool to carry out cutting according to the generating method principle and forms, its pitch is fixed and is suitable with the movement locus of bearing 4, in order to guarantee the continuity of transmission, the any time that worm screw 1 is being rotated, rectangle groove track 8 meshes simultaneously with two bearings 4 at least, otherwise will cause the fluctuation of worm gear 1 rotational frequency, even be interrupted, and then influence the output effect of power.
Embodiment two
Present embodiment (not shown) and embodiment's one difference is that above-mentioned Roller Shaft 5 is changed to screw rod, above-mentioned jump ring 7 is changed to bolt, screw rod one end inserts in the jack 10, bearing 4 is coated at screw rod, the screw on the other end of screw rod of bolt, bearing 4 is axially fixed on the screw rod, prevents that it from axially deviating from.
In addition, bearing 4 can adopt polytype bearing, such as needle bearing and ball bearing, can also adopt fluid bearing etc., can both realize equally that the utility model becomes sliding friction and is rolling friction, improves the purpose of transmission efficiency.
The utility model can be installed in the driving mechanism of electric bicycle and in other reducing gear, and its preparation process is simple, does not need to carry out the processing of gear hobbing, and fabricating cost is lower, if damage of bearings can directly be changed, thereby reduced maintenance cost.
Claims (7)
1, a kind of transmission device that adopts special worm screw and roller worm gear, comprise worm screw and roller worm gear, it is characterized in that: described roller worm gear comprises worm gear body and set of rollers zoarium, and described set of rollers zoarium is uniformly distributed on the circumferential surface of worm gear body and is installed in the corresponding jack; Described worm screw comprises worm screw body and the helical rectangle groove track that forms around the worm screw body, and this track pitch is fixed and is suitable with the movement locus of set of rollers zoarium.
2, the transmission device of special worm screw of employing according to claim 1 and roller worm gear, it is characterized in that: described set of rollers zoarium comprises that an end is installed on screw rod in the jack, is coated at bearing and bolt on the screw rod, described bolt is tightened the other end of screw rod, and bearing is axially fixed on the screw rod.
3, the transmission device of special worm screw of employing according to claim 1 and roller worm gear, it is characterized in that: described set of rollers zoarium comprises that an end is installed on Roller Shaft in the jack, is coated at the bearing on the Roller Shaft and is stuck in jump ring in the Roller Shaft the other end annular groove, and described jump ring is axially fixed in bearing on the Roller Shaft.
4, according to the transmission device of claim 2 or special worm screw of 3 described employings and roller worm gear, it is characterized in that: described bearing is needle bearing or ball bearing.
5, the transmission device of special worm screw of employing according to claim 1 and roller worm gear is characterized in that: described worm screw its channel suspending rail when rotating meshes simultaneously with two set of rollers zoariums at least.
6, according to the transmission device of claim 2 or special worm screw of 3 described employings and roller worm gear, it is characterized in that: described worm screw its channel suspending rail when rotating meshes simultaneously with two bearings at least.
7, the transmission device of special worm screw of employing according to claim 4 and roller worm gear is characterized in that: described worm screw its channel suspending rail when rotating meshes simultaneously with two bearings at least.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201332160U CN201149067Y (en) | 2007-12-25 | 2007-12-25 | Transmission device adopting special worm screw and roller worm wheel |
| PCT/CN2008/001013 WO2009079901A1 (en) | 2007-12-24 | 2008-05-26 | Electrically power assisting bicycle with combined power unit and transmission device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201332160U CN201149067Y (en) | 2007-12-25 | 2007-12-25 | Transmission device adopting special worm screw and roller worm wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149067Y true CN201149067Y (en) | 2008-11-12 |
Family
ID=40116835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201332160U Expired - Fee Related CN201149067Y (en) | 2007-12-24 | 2007-12-25 | Transmission device adopting special worm screw and roller worm wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149067Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749372A (en) * | 2008-12-01 | 2010-06-23 | 刘运武 | Spiral movable labor-saving speed reducer |
| CN102758880A (en) * | 2012-07-18 | 2012-10-31 | 武汉理工大学 | Novel worm and gear bilateral transmission device |
| CN103016627A (en) * | 2012-12-18 | 2013-04-03 | 大连虹桥科技有限公司 | Worm drive mechanism |
| CN107575539A (en) * | 2017-08-31 | 2018-01-12 | 宜宾学院 | A kind of Novel end face transmission device with double reduction function |
| CN110242704A (en) * | 2019-06-17 | 2019-09-17 | 成都中良川工科技有限公司 | A kind of transmission device and its drive method based on rolling friction |
| CN111089141A (en) * | 2018-10-24 | 2020-05-01 | 上海联紫能源科技有限公司 | Roller worm speed reducer |
| CN114060490A (en) * | 2021-12-06 | 2022-02-18 | 西安蒂普电子科技有限公司 | Thrust augmentation component of rotary wheel power machine |
| CN116447283A (en) * | 2023-06-16 | 2023-07-18 | 成都理工大学 | Worm wheel and transmission structure, speed reducer and gear motor thereof |
-
2007
- 2007-12-25 CN CNU2007201332160U patent/CN201149067Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749372A (en) * | 2008-12-01 | 2010-06-23 | 刘运武 | Spiral movable labor-saving speed reducer |
| CN102758880A (en) * | 2012-07-18 | 2012-10-31 | 武汉理工大学 | Novel worm and gear bilateral transmission device |
| CN102758880B (en) * | 2012-07-18 | 2015-09-30 | 武汉理工大学 | Bilateral is to worm gearing |
| CN103016627A (en) * | 2012-12-18 | 2013-04-03 | 大连虹桥科技有限公司 | Worm drive mechanism |
| CN107575539A (en) * | 2017-08-31 | 2018-01-12 | 宜宾学院 | A kind of Novel end face transmission device with double reduction function |
| CN110056610A (en) * | 2017-08-31 | 2019-07-26 | 赵若君 | A kind of worm gear |
| CN107575539B (en) * | 2017-08-31 | 2019-10-29 | 宜宾学院 | A kind of Novel end face transmission device with double reduction function |
| CN111089141A (en) * | 2018-10-24 | 2020-05-01 | 上海联紫能源科技有限公司 | Roller worm speed reducer |
| CN110242704A (en) * | 2019-06-17 | 2019-09-17 | 成都中良川工科技有限公司 | A kind of transmission device and its drive method based on rolling friction |
| CN110242704B (en) * | 2019-06-17 | 2021-10-22 | 成都中良川工科技有限公司 | Rolling friction-based transmission device and transmission method thereof |
| CN114060490A (en) * | 2021-12-06 | 2022-02-18 | 西安蒂普电子科技有限公司 | Thrust augmentation component of rotary wheel power machine |
| CN114060490B (en) * | 2021-12-06 | 2022-10-11 | 西安蒂普电子科技有限公司 | Thrust augmentation component of rotary wheel power machine |
| CN116447283A (en) * | 2023-06-16 | 2023-07-18 | 成都理工大学 | Worm wheel and transmission structure, speed reducer and gear motor thereof |
| CN116447283B (en) * | 2023-06-16 | 2023-12-22 | 成都理工大学 | Worm wheel and transmission structure, speed reducer and gear motor thereof |
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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: 20081112 Termination date: 20131225 |