CN201934584U - Adjustable straight-sided normal worm transmission - Google Patents
Adjustable straight-sided normal worm transmission Download PDFInfo
- Publication number
- CN201934584U CN201934584U CN2011200232123U CN201120023212U CN201934584U CN 201934584 U CN201934584 U CN 201934584U CN 2011200232123 U CN2011200232123 U CN 2011200232123U CN 201120023212 U CN201120023212 U CN 201120023212U CN 201934584 U CN201934584 U CN 201934584U
- Authority
- CN
- China
- Prior art keywords
- worm
- worm screw
- driven
- bearing housing
- transmission
- 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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Abstract
The utility model relates to a mechanical transmission device, particularly to an adjustable straight-sided normal worm transmission. In the utility model, the both two sides of a driving worm and a driven worm are supported by roller pin and roller combined bearings; a tightening sleeve is arranged at one end of the right bearing housing on the driven worm; both a left bearing housing and the right bearing housing are fixed on a worm gear case through inner hexagon screws, and framework oil seals are installed on both the left bearing housing and the right bearing housing; a synchronous pulley is fastened on the driving worm through an expansion sleeve; and a worm wheel is mounted on a worm-wheel shaft and meshed with the driving worm and the driven worm. The adjustable straight-sided normal worm transmission has the advantages of simple structure and high indexing accuracy, can adjust the mutual abrasion between the worm wheel and the worms at any time, and is applicable to the transmission of a high-precision mechanism and a rotation mechanism.
Description
Technical field
The utility model relates to a kind of mechanical transmission, the transmission of a kind of specifically adjustable normal direction straight profile cylindrical worm.
Background technique
Present normal direction straight profile cylindrical worm transmission, because of the back lash that can't adjust between the worm and gear has influenced transmission accuracy, in use can't adjust the precision that causes driving mechanism and can't be guaranteed in addition owing to the mutual wearing and tearing between the worm and gear.
The model utility content
It is a kind of simple in structure that the purpose of this utility model is to provide, and the indexing accuracy height can be adjusted a kind of adjustable normal direction straight profile cylindrical worm transmission of the mutual wearing and tearing between the worm and gear at any time.
The utility model all supports with needle roller and thrust roller combination bearing on the both sides of active worm screw and driven worm screw, step up to be set in an end of right bearing cover on the driven worm screw, left bearing cover and right bearing are applied mechanically socket head screw and are fixed on the worm gear case, left bearing cover and right bearing cover all are equipped with outside framework oil seal, synchronous pulley is locked on the active worm screw by swelling, worm gear is housed on the worm-wheel shaft, and worm gear is with initiatively worm screw and driven worm screw are meshed.
Advantage of the present utility model is simple in structure, and the indexing accuracy height has realized can adjusting at any time the mutual wearing and tearing between the worm and gear simultaneously.It is useful in highi degree of accuracy mechanism, the swirl gear transmission and uses.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
1-synchronous pulley 2-swelling cover 3-active worm screw 4-outside framework oil seal 5-left bearing cover 6-needle roller and the driven worm screw 10-of thrust roller combination bearing 7-worm gear case 8-worm gear 9-right bearing cover 11-step up cover
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
The utility model is by worm gear, worm screw constitutes, initiatively worm screw (3) and driven worm screw (9) become an integrated type worm screw under the effect that steps up cover (11), the worm screw both sides are supported by needle roller and thrust roller combination bearing (6), left bearing cover (5) and right bearing cover (10) are fixed on the worm gear case (7) with socket head screw, in left bearing cover (5) and the right bearing cover (10) outside framework oil seal (4) being housed all seals, synchronous pulley (1) by swelling cover (2) swelling on active worm screw (3), worm gear (8) is installed on the worm-wheel shaft and is meshed with active worm screw (3) and driven worm screw (9), initiatively worm screw (3) and driven worm screw (9) are by the motor power of band transmission synchronously, thereby realize engagement and motion between active worm screw (3) and driven worm screw (9) and the worm gear (8), if unclamp when needing to regulate the back lash between the worm and gear and step up cover (11), fixing then initiatively worm screw (3) is rotated driven worm screw (9) and regulates the gap, gap adjustment well after once more locking step up cover (11) and get final product.
Claims (1)
1. adjustable normal direction straight profile cylindrical worm transmission, by worm gear, worm screw constitutes, it is characterized in that all using needle roller and thrust roller combination bearing (6) to support on the both sides of active worm screw (3) and driven worm screw (9), step up cover (11) and be located at the end that driven worm screw (9) goes up right bearing cover (10), left bearing cover (5) and right bearing cover (10) are fixed on the worm gear case (7) with socket head screw, left bearing cover (5) and right bearing cover (10) all are equipped with outside framework oil seal (4), synchronous pulley (1) by swelling cover (2) tightly on active worm screw (3), worm gear (8) is housed on the worm-wheel shaft, and worm gear (8) is with initiatively worm screw (3) and driven worm screw (9) are meshed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200232123U CN201934584U (en) | 2011-01-25 | 2011-01-25 | Adjustable straight-sided normal worm transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200232123U CN201934584U (en) | 2011-01-25 | 2011-01-25 | Adjustable straight-sided normal worm transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934584U true CN201934584U (en) | 2011-08-17 |
Family
ID=44446103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200232123U Expired - Fee Related CN201934584U (en) | 2011-01-25 | 2011-01-25 | Adjustable straight-sided normal worm transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777563A (en) * | 2012-07-24 | 2012-11-14 | 无锡平盛科技有限公司 | Cable speed transformation device of spooler |
| CN108953582A (en) * | 2018-06-21 | 2018-12-07 | 长春花明科技有限公司 | A kind of list worm gear twin worm deceleration device initialization gap removing method |
-
2011
- 2011-01-25 CN CN2011200232123U patent/CN201934584U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777563A (en) * | 2012-07-24 | 2012-11-14 | 无锡平盛科技有限公司 | Cable speed transformation device of spooler |
| CN102777563B (en) * | 2012-07-24 | 2015-06-03 | 无锡平盛科技有限公司 | Cable speed transformation device of spooler |
| CN108953582A (en) * | 2018-06-21 | 2018-12-07 | 长春花明科技有限公司 | A kind of list worm gear twin worm deceleration device initialization gap removing method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20180125 |