CN204677691U - A kind of auto-compensating drive structure of gear worm - Google Patents
A kind of auto-compensating drive structure of gear worm Download PDFInfo
- Publication number
- CN204677691U CN204677691U CN201520277386.0U CN201520277386U CN204677691U CN 204677691 U CN204677691 U CN 204677691U CN 201520277386 U CN201520277386 U CN 201520277386U CN 204677691 U CN204677691 U CN 204677691U
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- engaging piece
- worm
- gear
- helical tooth
- auto
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Abstract
The utility model discloses a kind of auto-compensating drive structure of gear worm, comprise: worm gear and worm screw, the outer circumferential face of worm gear is provided with worm-gear tooth, worm and wheel engagement driving, worm screw comprises worm shaft and the first engaging piece be arranged on worm shaft and the second engaging piece, and the axial plane of the first engaging piece and the second engaging piece is respectively equipped with the first helical tooth and the second helical tooth that engage with worm gear; Be provided with the 3rd engaging piece between first engaging piece and the second engaging piece, and the length of the 3rd engaging piece is less than the distance between the first engaging piece and the second engaging piece; 3rd engaging piece radial direction is fixing, axially mobilizable to be arranged on worm shaft, and the 3rd engaging piece is provided with the 3rd helical tooth, and the teeth groove of the 3rd helical tooth is connected with the teeth groove of the first helical tooth and the second helical tooth respectively.The utility model realizes engaging tension or the problem that cannot engage to the first engaging piece or the second engaging piece because integrating error cause by sliding axially of the 3rd engaging piece.
Description
Technical field
The utility model relates to Worm Wheel System technical field, particularly relates to a kind of auto-compensating drive structure of gear worm.
Background technique
Along with the development of modern drive technology, require more and more higher to worm geared sideshake, as precision machine tool rotary table, especially have the occasion of calibration and positioning accuracy request, have higher requirement to the engagement degree of its worm gear pair.And on the other hand, because worm gear, worm screw there will be error unavoidably in working process, when gear and worm meshing, time on deviation accumulation to gear teeth, these gear teeth can be caused to engage tension or the phenomenon that cannot engage with corresponding race Surface of action.
Model utility content
Based on the technical problem that above-mentioned background technology exists, the utility model proposes a kind of auto-compensating drive structure of gear worm, can the Surface of action that fabrication error causes be compensated.
The utility model proposes a kind of auto-compensating drive structure of gear worm, comprise: worm gear and worm screw, the outer circumferential face of worm gear is provided with worm-gear tooth, worm and wheel engagement driving, worm screw comprises worm shaft and the first engaging piece be arranged on worm shaft and the second engaging piece, and the axial plane of the first engaging piece and the second engaging piece is respectively equipped with the first helical tooth and the second helical tooth that engage with worm gear; Be provided with the 3rd engaging piece between first engaging piece and the second engaging piece, and the length of the 3rd engaging piece is less than the distance between the first engaging piece and the second engaging piece; 3rd engaging piece radial direction is fixing, axially mobilizable to be arranged on worm shaft, and the 3rd engaging piece is provided with the 3rd helical tooth, and the teeth groove of the 3rd helical tooth is connected with the teeth groove of the first helical tooth and the second helical tooth respectively.
Preferably, the axial plane of worm shaft between the first engaging piece and the second engaging piece is provided with gliding groove, be provided with row's ball in gliding groove, and ball exceeds the vallecular cavity of gliding groove; The axial plane that 3rd engaging piece is relative with worm shaft is provided with the upper hopper chute corresponding with gliding groove, and the ball in gliding groove is positioned at upper hopper chute simultaneously.
Preferably, one is had at least to removably connect with worm shaft in the first engaging piece and the second engaging piece.
The utility model by arranging the first engaging piece and the second engaging piece on worm screw, and arrange between the first engaging piece and the second engaging piece can on worm screw to both sides the 3rd engaging piece in axial sliding; Realize constantly adjusting compensation to the integrating error that the first engaging piece or the second engaging piece cause because of making problem by sliding axially of the 3rd engaging piece, remain at the optimum state to make it; And the advantage such as the worm gear pair that the utility model provides also has simple and compact for structure, does not need artificial adjustment, easy to manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of auto-compensating drive structure of gear worm that the utility model proposes.
Embodiment
Below, by specific embodiment, the technical solution of the utility model is described in detail.
As shown in Figure 1, Fig. 1 is the structural representation of a kind of auto-compensating drive structure of gear worm that the utility model proposes.
With reference to Fig. 1, a kind of auto-compensating drive structure of gear worm that the utility model embodiment proposes, comprise: worm gear 1 and worm screw, the outer circumferential face of worm gear 1 is provided with worm gear 1 tooth, worm and wheel 1 engagement driving, the first engaging piece 3 and the second engaging piece 4 that worm screw comprises worm shaft 2 and is arranged on worm shaft 2, wherein, the axial plane of worm shaft 2 between the first engaging piece 3 and the second engaging piece 4 is provided with gliding groove 21, be provided with row's ball 6 in gliding groove 21, and ball 6 exceeds the vallecular cavity of gliding groove 21; Have at least one to removably connect with worm shaft 2 in first engaging piece 3 and the second engaging piece 4, the axial plane of the first engaging piece 3 and the second engaging piece 4 is respectively equipped with the first helical tooth and the second helical tooth that engage with worm gear 1; The 3rd engaging piece 5 is provided with between first engaging piece 3 and the second engaging piece 4, and the length of the 3rd engaging piece 5 is less than the distance between the first engaging piece 3 and the second engaging piece 4, the axial plane that 3rd engaging piece 5 is relative with worm shaft 2 is provided with the upper hopper chute corresponding with gliding groove 21, and the ball 6 in gliding groove 21 is positioned at upper hopper chute simultaneously, 3rd engaging piece 5 can be fixed along worm shaft 2 radial direction, slide axially, 3rd engaging piece 5 is provided with the 3rd helical tooth, and the teeth groove of the 3rd helical tooth is connected with the teeth groove of the first helical tooth and the second helical tooth respectively.
The utility model is realized the first engaging piece 3 or the second engaging piece 4 because fabrication error causes the problem of Surface of action tension by the sliding axially on worm shaft 2 of the 3rd engaging piece 5.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and model utility design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (3)
1. an auto-compensating drive structure of gear worm, it is characterized in that, comprise: worm gear (1) and worm screw, the outer circumferential face of worm gear (1) is provided with worm gear (1) tooth, worm and wheel (1) engagement driving, worm screw comprises worm shaft (2) and the first engaging piece (3) of being arranged on worm shaft (2) and the second engaging piece (4), and the axial plane of the first engaging piece (3) and the second engaging piece (4) is respectively equipped with the first helical tooth and the second helical tooth that engage with worm gear (1); Be provided with the 3rd engaging piece (5) between first engaging piece (3) and the second engaging piece (4), and the length of the 3rd engaging piece (5) is less than the distance between the first engaging piece (3) and the second engaging piece (4); 3rd engaging piece (5) radial direction is fixing, axially mobilizable to be arranged on worm shaft (2), 3rd engaging piece (5) is provided with the 3rd helical tooth, and the teeth groove of the 3rd helical tooth is connected with the teeth groove of the first helical tooth and the second helical tooth respectively.
2. auto-compensating drive structure of gear worm according to claim 1, it is characterized in that, worm shaft (2) axial plane be positioned between the first engaging piece (3) and the second engaging piece (4) is provided with gliding groove (21), be provided with row's ball (6) in gliding groove (21), and ball (6) exceeds the vallecular cavity of gliding groove (21); The axial plane that 3rd engaging piece (5) is relative with worm shaft (2) is provided with the upper hopper chute corresponding with gliding groove (21), and the ball (6) in gliding groove (21) is positioned at upper hopper chute simultaneously.
3. the auto-compensating drive structure of gear worm according to any one of claim 1-2, is characterized in that, has at least one to removably connect with worm shaft (2) in the first engaging piece (3) and the second engaging piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277386.0U CN204677691U (en) | 2015-04-30 | 2015-04-30 | A kind of auto-compensating drive structure of gear worm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277386.0U CN204677691U (en) | 2015-04-30 | 2015-04-30 | A kind of auto-compensating drive structure of gear worm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677691U true CN204677691U (en) | 2015-09-30 |
Family
ID=54177384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520277386.0U Expired - Fee Related CN204677691U (en) | 2015-04-30 | 2015-04-30 | A kind of auto-compensating drive structure of gear worm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677691U (en) |
-
2015
- 2015-04-30 CN CN201520277386.0U patent/CN204677691U/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: 20150930 Termination date: 20160430 |