CN203009716U - Worm and gear speed reducer - Google Patents
Worm and gear speed reducer Download PDFInfo
- Publication number
- CN203009716U CN203009716U CN 201320022195 CN201320022195U CN203009716U CN 203009716 U CN203009716 U CN 203009716U CN 201320022195 CN201320022195 CN 201320022195 CN 201320022195 U CN201320022195 U CN 201320022195U CN 203009716 U CN203009716 U CN 203009716U
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- CN
- China
- Prior art keywords
- worm
- speed reducer
- worm screw
- casing
- bearing
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- 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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Abstract
The utility model relates to a worm and gear speed reducer. The speed reducer comprises a box body, a worm gear, a worm and an input flange, wherein the worm gear is meshed with the worm; the input flange is fixed with the box body; the two ends of the worm are fixed on the box body through a first bearing and a second bearing; retainer rings are arranged at the outer ends of the first bearing and the second bearing; a worm front end closure and a worm back end closure are arranged at the two ends of the worm respectively; an oil sealing cover is arranged at the outer end of the worm back end closure; and oil seals are arranged between the worm and the box body and between the worm and the worm front end closure. The worm and gear speed reducer has the advantages of simple structure, small volume, capability of saving the installation space, good transmission steadiness, high precision, long service life and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, specifically relates to a kind of worm-gear speed reducer.
Background technique
Speed reducer is a kind of power transmission mechanism, utilizes the velocity transducer of gear, the winding number of motor (motor) is decelerated to desired winding number, and obtain the mechanism of larger torque.Be used for the mechanism of transferring power and motion at present, the application area of speed reducer is quite extensive.Almost can see its trace in the transmission system of various machinery, from boats and ships, automobile, the locomotive of the traffic tool, heavy machinery for building, the machining machine and tool that mechanical industry is used and automated production equipment, common household electrical appliances in the daily life, clock and watch etc.From the transmission work of large power, to little load, accurate angle transmission can be seen the application of speed reducer, and on commercial Application, speed reducer has deceleration and increases torque functions.Therefore be widely used in the conversion equipment of speed and moment of torsion.
Speed reducer is a kind of relatively accurate machinery, and the purpose of using it is to reduce rotating speed, increases torque.It of a great variety, model is different, and variety classes has different purposes.Retarder of a great variety can be divided into gear reducer, worm reducer and plane table thermoconductivity meter according to the transmission type; Can be divided into single-stage and multi-stage speed reducer according to transmission progression difference; Can be divided into cylinder gear speed reducer, cone gear reducer and circular cone-cylinder gear speed reducer according to gear shape; Setting type according to transmission can be divided into again expansion, flow deviding type and coaxial-type retarder.The main feature of worm-gear speed reducer is to have the reverse self-locking function, and larger reduction speed ratio can be arranged, and input shaft and output shaft be not on same axis, also not at grade.But general volume is larger, and transmission efficiency is not high, and precision is not high.
The model utility content
The defective that exists in order to solve existing design, the utility model provides a kind of worm-gear speed reducer.
A kind of worm-gear speed reducer, described speed reducer comprises casing, worm gear, worm screw and input flange, described wormgear engaging worm, described input flange and casing are fixedly installed; Described worm screw two ends are fixed on casing by clutch shaft bearing and the second bearing, and the outer end of described clutch shaft bearing and the second bearing is equipped with back-up ring, and described worm screw two ends are respectively equipped with worm screw front cover and worm screw rear end cover, and described worm screw rear end cover outer end is provided with oil seal cover; Be provided with oil sealing between described worm screw and casing, worm screw front cover.
Preferably, be provided with the O RunddichtringO between described worm screw front cover and casing.
Preferably, the centre distance of described speed reducer is 25～40mm.
Preferably, the external diameter of described input flange is 80～160mm, and internal diameter is 50～110mm.
Preferably, fix by H type cross recessed countersunk head sscrew between described input flange and casing.
The utility model is simple in structure, and volume is little, can save installing space, has simultaneously that transmission stability is good, the advantages such as precision is high, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is right elevation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but protection domain of the present utility model is not limited to this.
With reference to Fig. 1, Fig. 2, a kind of worm-gear speed reducer, described speed reducer comprise casing 1, worm gear 2, worm screw 3 and input flange 4, described worm gear 2 engages worm 3, described input flange 4 is fixedly installed by H type cross recessed countersunk head sscrew 5 and casing 1; Described worm screw 3 two ends are fixed on casing 1 by clutch shaft bearing 6 and the second bearing 7, and the outer end of described clutch shaft bearing 6 and the second bearing 7 is equipped with back-up ring 8.
Described worm screw 3 two ends are respectively equipped with worm screw front cover 9 and worm screw rear end cover 10, and described worm screw rear end cover 10 outer ends are provided with oil seal cover 11; Be provided with oil sealing 12 between described worm screw 3 and casing 1, worm screw front cover 9; Be provided with O RunddichtringO 13 between described worm screw front cover 9 and casing 1.
The centre distance of described speed reducer is 25mm, and the external diameter of described input flange is 80mm, and internal diameter is 50mm.
Claims (5)
1. worm-gear speed reducer, it is characterized in that: described speed reducer comprises casing, worm gear, worm screw and input flange, described wormgear engaging worm, described input flange and casing are fixedly installed; Described worm screw two ends are fixed on casing by clutch shaft bearing and the second bearing, and the outer end of described clutch shaft bearing and the second bearing is equipped with back-up ring, and described worm screw two ends are respectively equipped with worm screw front cover and worm screw rear end cover, and described worm screw rear end cover outer end is provided with oil seal cover; Be provided with oil sealing between described worm screw and casing, worm screw front cover.
2. worm-gear speed reducer according to claim 1, is characterized in that: be provided with the O RunddichtringO between described worm screw front cover and casing.
3. worm-gear speed reducer according to claim 1, it is characterized in that: the centre distance of described speed reducer is 25～40mm.
4. worm-gear speed reducer according to claim 1, it is characterized in that: the external diameter of described input flange is 80～160mm, internal diameter is 50～110mm.
5. worm-gear speed reducer according to claim 1, is characterized in that: fix by H type cross recessed countersunk head sscrew between described input flange and casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022195 CN203009716U (en) | 2013-01-16 | 2013-01-16 | Worm and gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022195 CN203009716U (en) | 2013-01-16 | 2013-01-16 | Worm and gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009716U true CN203009716U (en) | 2013-06-19 |
Family
ID=48601313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320022195 Expired - Fee Related CN203009716U (en) | 2013-01-16 | 2013-01-16 | Worm and gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009716U (en) |
-
2013
- 2013-01-16 CN CN 201320022195 patent/CN203009716U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |