CN203322202U - Double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism - Google Patents
Double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism Download PDFInfo
- Publication number
- CN203322202U CN203322202U CN2013203898544U CN201320389854U CN203322202U CN 203322202 U CN203322202 U CN 203322202U CN 2013203898544 U CN2013203898544 U CN 2013203898544U CN 201320389854 U CN201320389854 U CN 201320389854U CN 203322202 U CN203322202 U CN 203322202U
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- worm
- gear
- wheel
- double
- rod
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Abstract
The utility model provides a double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism. The double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism comprises a main shaft, wherein a large gear is mounted on the main shaft; a first worm-wheel worm-rod pair and a second worm-wheel worm-rod pair are connected by a spline sleeve; the spline sleeve is internally provided with an elastic damper; the first worm-wheel worm-rod pair is connected with a first gear shaft; the second worm-wheel worm-rod pair is connected with a second gear shaft; the first gear shaft and the second gear shaft are engaged with the large gear respectively. According to the double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism, two sets of the worm-wheel worm-rod pairs synchronously control the two gear shafts; the two gear shafts are synchronously engaged with the large gear fixedly connected with the main shaft; the elastic damper in the spline sleeve guarantees that two shaft gears are respectively engaged with left and right tooth faces of the large gear respectively so as to eliminate the non-uniqueness of a main shaft output angle in a transmission process; the repeated positioning precision is improved greatly and the manufacturing difficulty of a precise worm wheel pair is reduced.
Description
Technical field
The indexing mechanism of the utility model this and a kind of precision, the particularly a kind of pair of worm gear twin worm and Gear combination anti-backlash mechanism.
Background technique
Perhaps in existing indexing mechanism have on the equipment of revolving table more, often uses worm couple or gear pair to carry out calibration and circular movement, requires transmission accurate, and repetitive positioning accuracy is high.High-precision worm couple or gear pair can improve precision, but manufacture costliness, and can not eliminate the nonuniqueness that causes output angle because of the existence of drive gap fully, and positioning precision is low.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned technology, and a kind of nonuniqueness of eliminating transmission process main shaft output angle is provided, and improves repetitive positioning accuracy, and has reduced two worm gear twin worms and the Gear combination anti-backlash mechanism of accurate worm gear pair manufacture difficulty.
The purpose of this utility model is achieved in that a kind of pair of worm gear twin worm and Gear combination anti-backlash mechanism, comprise main shaft, gearwheel is arranged on main shaft, the first worm couple, the second worm couple connect by spline housing, establish elastic damping in spline housing, the first worm couple is connected with the first gear shaft, and the second worm couple is connected with the second gear shaft, and the first gear shaft and the second gear shaft mesh with gearwheel respectively.
Two worm gear twin worms and Gear combination anti-backlash mechanism that the utility model provides, adopt two gear shafts of two cover worm couple synchronization control, two gear shafts mesh with the gearwheel that main shaft connects firmly simultaneously, elastic damping in spline housing guaranteed all the time two shaftgears respectively with the left and right flank engagement of gearwheel, eliminated the nonuniqueness of transmission process main shaft output angle, greatly improve repetitive positioning accuracy, and reduced accurate worm gear pair manufacture difficulty.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view in Fig. 1.
Embodiment
Structure of the present utility model as illustrated in fig. 1 and 2, a kind of pair of worm gear twin worm and Gear combination anti-backlash mechanism, comprise main shaft 8, gearwheel 7 is arranged on main shaft 8, the first worm couple 1, the second worm couple 2 connect by spline housing 3, establish elastic damping 6, the first worm couples 1 and be connected with the first gear shaft 4 in spline housing 3, the second worm couple 2 is connected with the second gear shaft 5, and the first gear shaft 4 and the second gear shaft 5 mesh with gearwheel 7 respectively.
Working principle of the present utility model is as follows: the first worm couple 1 and the second worm couple 2 are realized synchronous transmission by spline housing 3, the worm gear of the first worm couple 1 is connected with the first gear shaft 4, the worm gear of the second worm couple 2 and the second gear shaft 5 connect firmly, the first gear shaft 4 and the second gear shaft 5 mesh with gearwheel 7 respectively, owing to establishing elastic damping 6 in spline housing 3, the existence of elastic damping 6 applies a contrary thrust by the worm screw of two cover worm gear pairs, these two contrary thrusts are delivered on the first gear shaft 4 and the second gear shaft 5 by worm gear, force the first gear shaft 4 of being meshed with gearwheel 7 and the second gear shaft 5 by contrary direction rotation, at this moment the first gear shaft 4 and the second gear shaft 5 left and right flank of tooth respectively with the left and right flank engagement of gearwheel, the gap that disappears the gap in the transmission, reached the purpose of the gap that disappears.
Claims (1)
1. two worm gear twin worms and Gear combination anti-backlash mechanism, comprise main shaft (8), gearwheel (7) is arranged on main shaft (8), it is characterized in that: the first worm couple (1), the second worm couple (2) connect by spline housing (3), establish elastic damping (6) in spline housing (3), the first worm couple (1) is connected with the first gear shaft (4), the second worm couple (2) is connected with the second gear shaft (5), and the first gear shaft (4) and the second gear shaft (5) mesh with gearwheel (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203898544U CN203322202U (en) | 2013-07-02 | 2013-07-02 | Double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203898544U CN203322202U (en) | 2013-07-02 | 2013-07-02 | Double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322202U true CN203322202U (en) | 2013-12-04 |
Family
ID=49661555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203898544U Expired - Lifetime CN203322202U (en) | 2013-07-02 | 2013-07-02 | Double-worm-wheel double-worm-rod and gear combined gap eliminating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322202U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819259A (en) * | 2015-05-05 | 2015-08-05 | 中国科学院国家天文台南京天文光学技术研究所 | Low energy consumption and high precision transmission system suitable for South Pole telescope |
| CN105414995A (en) * | 2015-12-30 | 2016-03-23 | 沈机集团昆明机床股份有限公司 | Transmission device, driving system adopting same as well as rotating table |
| CN105479282A (en) * | 2014-09-18 | 2016-04-13 | 洛阳巨优机床有限公司 | Double-worm transmission device of double-end-face grinding machine feeding box |
| CN105499717A (en) * | 2016-01-19 | 2016-04-20 | 重庆机床(集团)有限责任公司 | Gear hobbing machine tool rest angle rotating mechanism applicable to different numerical control shafts |
| CN107796343A (en) * | 2017-11-17 | 2018-03-13 | 杭州航验环境技术有限公司 | A kind of high-precision positioner and high accuracy positioning householder method |
| CN108612815A (en) * | 2018-05-25 | 2018-10-02 | 安徽知之信息科技有限公司 | Two shift transmissions of one kind and its method for changing speed |
| CN109340325A (en) * | 2018-11-19 | 2019-02-15 | 淮南联合大学 | A kind of new type worm wheel formula speed changer and its method for changing speed |
| CN111872709A (en) * | 2020-07-06 | 2020-11-03 | 重庆华中数控技术有限公司 | Five-axis machining tool with double power spindles |
-
2013
- 2013-07-02 CN CN2013203898544U patent/CN203322202U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479282A (en) * | 2014-09-18 | 2016-04-13 | 洛阳巨优机床有限公司 | Double-worm transmission device of double-end-face grinding machine feeding box |
| CN104819259A (en) * | 2015-05-05 | 2015-08-05 | 中国科学院国家天文台南京天文光学技术研究所 | Low energy consumption and high precision transmission system suitable for South Pole telescope |
| CN105414995A (en) * | 2015-12-30 | 2016-03-23 | 沈机集团昆明机床股份有限公司 | Transmission device, driving system adopting same as well as rotating table |
| CN105499717A (en) * | 2016-01-19 | 2016-04-20 | 重庆机床(集团)有限责任公司 | Gear hobbing machine tool rest angle rotating mechanism applicable to different numerical control shafts |
| CN107796343A (en) * | 2017-11-17 | 2018-03-13 | 杭州航验环境技术有限公司 | A kind of high-precision positioner and high accuracy positioning householder method |
| CN107796343B (en) * | 2017-11-17 | 2024-05-10 | 杭州航验环境技术有限公司 | High-precision positioning device and high-precision positioning auxiliary method |
| CN108612815A (en) * | 2018-05-25 | 2018-10-02 | 安徽知之信息科技有限公司 | Two shift transmissions of one kind and its method for changing speed |
| CN109340325A (en) * | 2018-11-19 | 2019-02-15 | 淮南联合大学 | A kind of new type worm wheel formula speed changer and its method for changing speed |
| CN111872709A (en) * | 2020-07-06 | 2020-11-03 | 重庆华中数控技术有限公司 | Five-axis machining tool with double power spindles |
| CN111872709B (en) * | 2020-07-06 | 2022-05-06 | 重庆华中数控技术有限公司 | Five-axis machining tool with double power spindles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |