CN202646545U - Gap-adjustable worm wheel and worm rod transmission mechanism - Google Patents
Gap-adjustable worm wheel and worm rod transmission mechanism Download PDFInfo
- Publication number
- CN202646545U CN202646545U CN 201220319783 CN201220319783U CN202646545U CN 202646545 U CN202646545 U CN 202646545U CN 201220319783 CN201220319783 CN 201220319783 CN 201220319783 U CN201220319783 U CN 201220319783U CN 202646545 U CN202646545 U CN 202646545U
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- China
- Prior art keywords
- worm
- bearing
- support seat
- hole
- screw
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- Expired - Fee Related
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- Gears, Cams (AREA)
Abstract
The utility model relates to a transmission mechanism, in particular to a gap-adjustable worm wheel and worm rod transmission mechanism, which comprises a support seat, wherein a worm rod is connected onto the support seat in the length direction of the support seat through a worm rod bearing, a semicircular worm wheel is arranged above the worm rod, the semicircular worm wheel is engaged and connected with the worm rod, the center position of the semicircular worm wheel is fixedly connected with the outer end of a hollow rotating shaft, a through hole is arranged on the side surface of one end of the support seat in the width direction of the support seat, one end of the rotating shaft arranged in the through hole is connected with a vertical plate, the other end of the rotating shaft arranged in the through hole is connected with a support frame fixedly connected onto the vertical plate, a regulating support frame is arranged under the other end of the support seat, a regulating screw is arranged on the regulating support frame, the upper end of the regulating screw extends into a blind hole arranged at the bottom of the support seat, a spring arranged in the blind hole is sheathed on the outer side of the regulating screw, and the lower end of the spring is in butted contact with the upper surface of the regulating support frame. The transmission mechanism has the beneficial effects that the self locking function is realized, the rotating precision is favorably improved, and the service life is prolonged.
Description
(1) technical field
The utility model relates to a kind of driving mechanism, particularly the adjustable Worm and worm-wheel gearing in a kind of gap.
(2) background technique
Relate in the mechanism of accurate angular turn at some, need to utilize actuating motor to drive rotatingshaft by speed reducer, realize transmission.Present driving mechanism utilizes speed reducer to change rotating speed, increases moment of torsion, and realizing transmission, but its cost is too high, can not self-locking, and because the error that speed reducer self causes is non-adjustable etc. factor is restricted its Applicable scope.
(3) summary of the invention
The utility model is in order to remedy the deficiencies in the prior art, provides a kind of and has auto-lock function, the gap is adjustable, stable performance, rotation precision is high, efficient is high, cost the is low adjustable Worm and worm-wheel gearing in gap.
The utility model is achieved by the following technical solution:
The adjustable Worm and worm-wheel gearing in a kind of gap, comprise bearing, on bearing, be connected with a worm screw along the bearing length direction by worm bearing, above worm screw, be provided with a semicircle worm gear, the semicircle worm gear is connected with worm meshing, and the central position of semicircle worm gear and hollow rotating shaft outer end are connected; End side surface at bearing is provided with a through hole along the bearing width direction, rotating shaft one end that is located in the through hole is connected with riser, the other end links to each other with support on being connected in riser, below the other end of bearing, be provided with an adjusting pole, be provided with one at adjusting pole and adjust screw, adjust the upper end of screw and stretch in the blind hole of rest base, the spring that is located in the blind hole is placed in the adjustment screw outside, and its lower end and adjusting pole upper surface are inconsistent.
The beneficial effects of the utility model are: the adjustable Worm and worm-wheel gearing in this gap, has auto-lock function, can automatically regulate gap between the worm and gear by being located at spring between adjusting pole and the bearing, it is remained closely is connected with a joggle, be conducive to improve rotation precision, reduce parts depreciation, extending mechanism working life, retention is stable; And cost is low, and is simple in structure, applied widely.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is side schematic view of the present utility model.
Among the figure, 1 bearing, 2 worm bearings, 3 worm screws, 4 semicircle worm gears, 5 hollow rotating shafts, 6 adjusting poles, 7 supports, 8 rotating shafts, 9 adjust screw, 10 springs, 11 risers, 12 Upper shaft sleeve seats, 13 lower shaft block sets.
(5) embodiment
Fig. 1-Fig. 2 is a kind of specific embodiment of the present utility model.This embodiment comprises bearing 1, on bearing 1, be connected with a worm screw 3 along bearing 1 length direction by worm bearing 2, be provided with a semicircle worm gear 4 above worm screw 3, semicircle worm gear 4 is connected with a joggle with worm screw 3, and the central position of semicircle worm gear 4 and hollow rotating shaft 5 outer ends are connected; End side surface at bearing 1 is provided with a through hole along bearing 1 width direction, rotating shaft 8 one ends that are located in the through hole are connected with riser 11, the other end links to each other with support 7 on being connected in riser 11, below the other end of bearing 1, be provided with an adjusting pole 6, be provided with one at adjusting pole 6 and adjust screw 9, adjust the upper end of screw 9 and stretch in the blind hole of bearing 1 bottom, the spring 10 that is located in the blind hole is placed in adjustment screw 9 outsides, and its lower end and adjusting pole 6 upper surfaces are inconsistent.
Be fixed on the riser 11 after hollow rotating shaft 5 cooperated by Upper shaft sleeve seat 12 and lower shaft block set 13, the end of worm screw 3 links to each other with the output shaft of drive motor.During use, drive motor drives worm screw 3 and rotates, worm screw 3 drives semicircle worm gear 4 and rotates, semicircle worm gear 4 drives the cutting device rotation angle by hollow rotating shaft 5 again, by the number of teeth ratio of worm screw 3 and semicircle worm gear 4 is set, to realize gearing down, change rotating speed thereby substitute expensive speed reducer, to reach cost-effective purpose.Tooth on worm screw 3 and the semicircle worm gear 4 has wearing and tearing in long-term work, the engagement degree of tooth is descended, at this moment, the spring 10 that is located between adjusting pole 6 and the bearing 1 can promote around the shaft 8 rotation risings of bearing 1, the worm screw 3 that drives simultaneously on the bearing 1 rises, make to remain closely between worm screw 3 and the semicircle worm gear 4 and be connected with a joggle, to keep the precision of rotation angle.The beneficial effects of the utility model are: the adjustable Worm and worm-wheel gearing in this gap, has auto-lock function, can automatically regulate gap between the worm and gear by being located at spring between adjusting pole and the bearing, it is remained closely is connected with a joggle, be conducive to improve rotation precision, reduce parts depreciation, extending mechanism working life, retention is stable; And cost is low, and is simple in structure, applied widely.
Claims (1)
1. adjustable Worm and worm-wheel gearing in gap, it is characterized in that: comprise bearing, on bearing, be connected with a worm screw along the bearing length direction by worm bearing, above worm screw, be provided with a semicircle worm gear, the semicircle worm gear is connected with worm meshing, and the central position of semicircle worm gear and hollow rotating shaft outer end are connected; End side surface at bearing is provided with a through hole along the bearing width direction, rotating shaft one end that is located in the through hole is connected with riser, the other end links to each other with support on being connected in riser, below the other end of bearing, be provided with an adjusting pole, be provided with one at adjusting pole and adjust screw, adjust the upper end of screw and stretch in the blind hole of rest base, the spring that is located in the blind hole is placed in the adjustment screw outside, and its lower end and adjusting pole upper surface are inconsistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319783 CN202646545U (en) | 2012-07-04 | 2012-07-04 | Gap-adjustable worm wheel and worm rod transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319783 CN202646545U (en) | 2012-07-04 | 2012-07-04 | Gap-adjustable worm wheel and worm rod transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646545U true CN202646545U (en) | 2013-01-02 |
Family
ID=47415655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319783 Expired - Fee Related CN202646545U (en) | 2012-07-04 | 2012-07-04 | Gap-adjustable worm wheel and worm rod transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322979A (en) * | 2018-11-05 | 2019-02-12 | 兰州万里航空机电有限责任公司 | For eliminating the device in Worm Wheel System gap |
-
2012
- 2012-07-04 CN CN 201220319783 patent/CN202646545U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322979A (en) * | 2018-11-05 | 2019-02-12 | 兰州万里航空机电有限责任公司 | For eliminating the device in Worm Wheel System gap |
| CN109322979B (en) * | 2018-11-05 | 2021-08-20 | 兰州万里航空机电有限责任公司 | Device for eliminating transmission clearance of worm and gear |
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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: 20130102 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |