CN2705664Y - Gap clearing device for gear driving - Google Patents
Gap clearing device for gear driving Download PDFInfo
- Publication number
- CN2705664Y CN2705664Y CN 200420040418 CN200420040418U CN2705664Y CN 2705664 Y CN2705664 Y CN 2705664Y CN 200420040418 CN200420040418 CN 200420040418 CN 200420040418 U CN200420040418 U CN 200420040418U CN 2705664 Y CN2705664 Y CN 2705664Y
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- CN
- China
- Prior art keywords
- gear
- tooth
- pair
- shaft
- parallel
- 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 kind of gear-driven backlash eliminating equipment, the crack that oppositely disappears when being used for each straight reciprocating motion by the gear rack transmission of lathe.The utility model comprises the input shaft that is parallel to each other, jack shaft, the output shaft that is fixed on the casing, the a pair of clearance elimination gear that is connected in parallel is installed on the input shaft, the a pair of idle pulley that is connected in parallel is installed on the jack shaft, described a pair of idle pulley respectively by bearing fixing on jack shaft, a driven gear is installed on the output shaft; Junction point between clearance elimination gear has the zygote that has tooth.The utility model is simple and compact for structure, rationally utilizes the space, operates steadily, and the transmission noise is low.
Description
(1) technical field under
The utility model relates to a kind of gear-driven backlash eliminating equipment, particularly a kind of each backlash eliminating equipment of doing the rotation to-and-fro motion or do straight reciprocating motion by gear and gear, wheel and rack of lathe that is applicable to.
(2) background technique
All need the performance of numerical control machine tool higher in current popular " clamping; five processing ", complicated die cavity processing, beautiful three-dimension curved surface processing etc., especially the quality of finished surface, as connect elimination, the surface of tool marks degree of finish, back and forth processing Location accuracy the solution that all needs as five-axle linkage, these problems such as reciprocating rotating motion positions precision that each is frequent such as lose, yet these all are technical barriers.
(3) summary of the invention
The utility model provides a kind of when doing the rotation to-and-fro motion by gear and gear, wheel and rack or doing straight reciprocating motion in order to remedy the deficiencies in the prior art, can eliminate the backlash eliminating equipment in reversing motion gap.
The utility model is achieved by the following technical solution:
Gear-driven backlash eliminating equipment of the present utility model, comprise the input shaft that is parallel to each other, jack shaft, the output shaft that are fixed on the casing, input shaft and output shaft by bearing fixing on casing, its specialization is: a pair of clearance elimination gear that is connected in parallel is installed on the input shaft, the a pair of idle pulley that is connected in parallel is installed on the jack shaft, described a pair of idle pulley respectively by bearing fixing on jack shaft, a driven gear is installed on the output shaft; A pair of clearance elimination gear is meshed with a pair of idle pulley respectively, and a pair of idle pulley is meshed with driven gear; Junction point between clearance elimination gear has the zygote that has tooth, and a side of zygote is a tooth, the groove of opposite side for matching with tooth; When two tooth-formation of gear complete matchings of clearance elimination gear, fit in a side between the tooth of described zygote junction and the groove, there is the gap between opposite side and the tooth top respectively.
Reverse backlash eliminating equipment of the present utility model, system forms by three rooted tooth wheel shafts, its principle of eliminating the gap is to allow two pinions on the input shaft produce relative rotation, two gears that drive on the jack shaft produce relative rotation, two gears that have movement clearance on the jack shaft are contacted, to reach the purpose of eliminating backlass respectively with gear both sides on the output shaft.
The utility model makes machine tool gears and gear, wheel and rack do the rotation to-and-fro motion or when doing straight reciprocating motion, the backlass device of the structure uniqueness of two-in-parallel gear dislocation elimination, simple and compact for structure, rationally utilize the space, operate steadily, the transmission noise is low, is the desirable annex that is applicable to the numerical control machine tool of all kinds of highi degree of accuracy complex parts of processing.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a cross-sectional view of the present utility model
Fig. 2 is the partial cutaway schematic of zygote of the present utility model
Among the figure, 1 input shaft, 2 jack shafts, 3 output shafts, 4 casings, 5 clearance elimination gears, 6 idle pulleys, 7 driven gears, 8 zygotes.
(5) embodiment
Accompanying drawing 1 and Fig. 2 are a kind of specific embodiment of the present utility model.This embodiment is made up of the three rooted tooth wheel shafts system of being parallel to each other, i.e. on casing, jack shaft 2 is fixed on the casing by bearing fixing for input shaft 1, jack shaft 2, output shaft 3, input shaft 1 and output shaft 3, and input shaft 1 and output shaft 3 can rotate.
The a pair of clearance elimination gear that is connected in parallel 5 is installed on the input shaft 1, interconnects by the zygote 8 that has tooth between the clearance elimination gear (5), a side of zygote 8 is a tooth, the groove of opposite side for matching with tooth; When two tooth-formation of gear complete matchings of clearance elimination gear 5, fit in a side between the tooth of zygote 8 junctions and the groove, there is Jian Xi ﹠amp between opposite side and the tooth top respectively; 1 and ﹠amp; 2.The tooth of zygote 8 is five, and tooth-shape angle is 15 °.
The a pair of idle pulley 6 that is connected in parallel is installed on the jack shaft 2, described a pair of idle pulley 6 respectively by bearing fixing on jack shaft 2, idle pulley 6 can rotate on jack shaft.
A driven gear 7 is installed on the output shaft 3.
Two clearance elimination gears (5) on the input shaft 1 are meshed with two idle pulleys 6 on the jack shaft 2 respectively, and two idle pulleys 6 are meshed with driven gear 7 on the output shaft 3.
Its principle of eliminating the gap is to allow two secondary clearance elimination gears 5 of input shaft 1 produce relative rotation, two idle pulleys 6 that drive jack shaft 2 produce relative rotation, two idle pulleys 6 that make jack shaft 2 with gap respectively with driven gear 7 contact both sides of axle 3, to reach the purpose of eliminating the gap.
The key of eliminating the gap is how to realize that two the gear pair clearance elimination gears 5 on the input shaft 1 produce the dislocation rotation.This device adopts the Connecting format that allows two gear pair clearance elimination gears 5 pass through end face zygote 8.When two clearance elimination gears, 5 profile of tooth complete matchings, the tooth of zygote 8 is fitted in a side, and there are Jian Xi ﹠amp respectively in opposite side and tooth top; 1 and ﹠amp; 2, as two gears displacement displacement ﹠amp comparatively speaking; 2 when reducing, and then two gears produce relative rotation.
Its processing method has two: a kind of mode makes the connecting part produce ﹠amp by spacer; 1 gap processes two gear pairs after fastening the getting well simultaneously; Another kind method is after two zygotes are combined closely, and processes two clearance elimination gears 5 simultaneously, and then with the side processing of the zygote 8 of a gear, makes it Chan Sheng ﹠amp; 1 gap produces a desired effect.Five tooth-shape angles of the device zygote 8 of this elimination gap structure are that 15 ° tooth is formed, and backlass is eliminated, and reach needed machine tool accuracy.
Claims (2)
1. gear-driven backlash eliminating equipment, comprise the input shaft that is parallel to each other (1), jack shaft (2), the output shaft (3) that are fixed on the casing, input shaft (1) and output shaft (3) by bearing fixing on casing, it is characterized in that: a pair of clearance elimination gear that is connected in parallel (5) is installed on the input shaft (1), the a pair of idle pulley (6) that is connected in parallel is installed on the jack shaft (2), described a pair of idle pulley respectively by bearing fixing on jack shaft (2), a driven gear (7) is installed on the output shaft (3); A pair of clearance elimination gear (5) is meshed with a pair of idle pulley (6) respectively, and a pair of idle pulley (6) is meshed with driven gear (7); Junction point between clearance elimination gear (5) has the zygote (8) that has tooth, and a side of zygote (8) is a tooth, the groove of opposite side for matching with tooth; When two tooth-formation of gear complete matchings of clearance elimination gear (5), fit in a side between the tooth of described zygote (8) junction and the groove, there is the gap between opposite side and the tooth top respectively.
2. gear-driven backlash eliminating equipment according to claim 1 is characterized in that: described zygote is five teeth, and tooth-shape angle is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040418 CN2705664Y (en) | 2004-05-11 | 2004-05-11 | Gap clearing device for gear driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040418 CN2705664Y (en) | 2004-05-11 | 2004-05-11 | Gap clearing device for gear driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705664Y true CN2705664Y (en) | 2005-06-22 |
Family
ID=34850601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040418 Expired - Fee Related CN2705664Y (en) | 2004-05-11 | 2004-05-11 | Gap clearing device for gear driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705664Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681583A (en) * | 2019-01-30 | 2019-04-26 | 枣庄北航机床创新研究院有限公司 | A kind of self cooled double speed reducers in inside |
| CN111059251A (en) * | 2020-01-09 | 2020-04-24 | 中航电测仪器股份有限公司 | Multi-stage transmission speed reduction anti-backlash gear box for airplane and anti-backlash method |
-
2004
- 2004-05-11 CN CN 200420040418 patent/CN2705664Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681583A (en) * | 2019-01-30 | 2019-04-26 | 枣庄北航机床创新研究院有限公司 | A kind of self cooled double speed reducers in inside |
| CN111059251A (en) * | 2020-01-09 | 2020-04-24 | 中航电测仪器股份有限公司 | Multi-stage transmission speed reduction anti-backlash gear box for airplane and anti-backlash method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |