CN2150384Y - Equi-arc full-rolling movable gearing - Google Patents
Equi-arc full-rolling movable gearing Download PDFInfo
- Publication number
- CN2150384Y CN2150384Y CN 92217621 CN92217621U CN2150384Y CN 2150384 Y CN2150384 Y CN 2150384Y CN 92217621 CN92217621 CN 92217621 CN 92217621 U CN92217621 U CN 92217621U CN 2150384 Y CN2150384 Y CN 2150384Y
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- China
- Prior art keywords
- ball
- tooth
- rolling bearing
- rolling
- permanent tooth
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Abstract
The utility model relates to an equi-arc full-rolling movable tooth gearing, which comprises the structural characteristics of an exiting movable tooth wave mechanical gearing. The exiting movable teeth are improved; the improved movable teeth are composed of a roller and a ball, wherein, the ball is engaged with fixed teeth. The device ensures that the movable teeth and the fixed teeth are entirely engaged without clearance in the whole process of transmission engagement, so that noises can be lowered. In addition, the fixed teeth and the movable teeth are all standard circles; the process of the meshing engagement is pure rolling transmission. The roller and the ball are standard circles, so that the utility model has the advantages of low friction coefficient, high efficiency, simple processing technology, and low production cost.
Description
The utility model relates to a kind of mechanical transmission, particularly a kind of oscillating tooth ripple mechanical transmission.
Oscillating tooth in the existing oscillating tooth ripple mechanical transmission is shown in accompanying drawing 3,4, oscillating tooth 25 is that crown portion is with the specific non-cylindrical body that waits circular curve, permanent tooth 8 is for waiting arc cylinder body, to guarantee that oscillating tooth 25 can all mesh with permanent tooth 8 in whole engagement process, its permanent tooth 8 is that underrange (being the non-circular arc that waits) is because the technology capability of oscillating tooth 25 crown portion curves is poor with the radius of curvature of the curve of oscillating tooth 25 contact pointss, so the artificer then adopts the near linear method to handle, shown in accompanying drawing 3 dotted portions.Therefore, the transmission of whole oscillating tooth ripple exists following problem:
1, because pitch curve is reduced to straight line, cause in whole engagement process the back lash bigger, the noise of generation is big, low speed ratio particularly, and noise reaches more than 80～90 decibels;
2, because oscillating tooth crown portion is a straight slope, belong to the slip transmission with the permanent tooth engagement process, so friction factor is big, high speed ratio particularly, its total number of teeth in engagement is many, so cause temperature rise, efficient is low;
Although 3 oscillating tooth tips change straight slope into by curvilinear plane, on processing technology, also exist certain degree of difficulty, as: the assurance of crown bevel angle, the assurance of two inclined-planes relative cylindrical body central axis degree of symmetry etc.
For above-mentioned reasons, two has just appearred keeping away in the exploitation of oscillating tooth ripple mechanical transmission, just middle situation, and promptly low speed ratio and high speed can not satisfy the needs in market than developing.
The purpose of this utility model is that the problems referred to above that oscillating tooth ripple mechanical transmission exists are improved, and is that the oscillating tooth in the existing apparatus 25 is improved by it, designs a kind of circular arc full-rolling movable teeth mechanical transmission that waits.
Technical solution of the present utility model is such: it comprises the structure characteristic of existing oscillating tooth ripple mechanical transmission, existing oscillating tooth 25 is improved, oscillating tooth after the improvement is made up of columniform roller and ball two-part, ball and permanent tooth engagement, the equal diameters of roller, ball and permanent tooth, the radius of curvature of the curve of permanent tooth and ball contact points are definite value (promptly waiting circular arc).Oscillating tooth after the improvement also can only adopt ball, does not need roller.
Owing to adopted the oscillating tooth after improving, when capacity eccentric bearing rotates, all oscillating tooths in 0 °～180 ° scopes by capacity eccentric bearing one by one jack-up stretch out along the movable teeth rack chute, a side of ball and permanent tooth interact on the oscillating tooth, and the permanent tooth dish maintains static, then the opposite side of ball and the chute on the movable teeth rack interact, and drive the output shaft rotation thereby promote movable teeth rack; 180 °～360 ° interior all oscillating tooths of scope then reduce under the effect of capacity eccentric bearing one by one, and ball is by the counter chute indentation of pushing movable teeth rack to of permanent tooth.Promptly the oscillating tooth in whole movable teeth rack chute has half ball to overhang out, and second half ball hangs indentation, forms a kind of continuous all to ripple along with the rotation of capacity eccentric bearing.In haveing suffered movement process, the motion of oscillating tooth and permanent tooth all is the pure rolling form.
Isocircular-arc fully-rolling movable gear driving device has guaranteed that oscillating tooth and permanent tooth can all mesh in haveing suffered the transmission engagement process, can reach to have suffered engagement and be tight mesh, so solved noise problem; In addition, permanent tooth and oscillating tooth are standard round, and are the pure rolling transmission in engagement process, have reduced friction factor, have improved efficient, keep away two thereby solved, with regard to the problem of centre; Roller and ball adopt standard round besides, and processing technology is simple, has reduced cost of production.
Description of drawings:
Accompanying drawing 1 is the Isocircular-arc fully-rolling movable gear driving device structural representation;
Accompanying drawing 2 is the A-A sectional view;
Accompanying drawing 3,4 is permanent tooth and an oscillating tooth mesh schematic representation in the prior art;
Accompanying drawing 5 is permanent tooth and the oscillating tooth mesh schematic representation in the Isocircular-arc fully-rolling movable gear driving device.
Now in conjunction with the accompanying drawings Isocircular-arc fully-rolling movable gear driving device is made detailed description:
This device comprises body 5, permanent tooth dish 7 and the end cap 9 that has ventilative cap 4, and body 5, permanent tooth dish 7 and end cap 9 are connected as a single entity by screw rod 10.Be provided with the output shaft 1 that has two rolling bearings 3,22 in body 5, two rolling bearings, 3, the 22 usefulness spacers 23 on the output shaft 1 separate, and are provided with seal ring 2 and retaining ring 24 between the bearing hole of the output terminal of output shaft 1 and body 5.The other end of output shaft 1 is a movable teeth rack, periphery along movable teeth rack is provided with two row's manholes (being chute), be provided with rolling bearing 21 in the bearing hole of movable teeth rack end face, the endoporus of rolling bearing 21 is equipped with input shaft 14, and output shaft 1 is connected as a single entity by rolling bearing 21 and input shaft 14.Between the axis hole of the other end of input shaft 14 and end cap 9, be provided with snap ring 11,15, rolling bearing 12 and seal ring 13, the output terminal of input shaft 14 is provided with the shock wave wheel 16 of two off-centre side by side, the off-centre of the shock wave of two off-centre wheel 16 180 degree that stagger are installed, and respectively being provided with a rolling bearing 17,20 on each shock wave wheel 16.Be provided with two groups of rotatable cylindrical permanent tooths 8 in the teeth groove of permanent tooth dish 7.Be equipped with oscillating tooth in two groups of chutes on the movable teeth rack between surface, the outer ring of rolling bearing 17,20 and permanent tooth 8, oscillating tooth is made up of roller 18 and ball 19, an end face of roller 18 contacts with the surface, outer ring of rolling bearing 17,20, the other end contacts with ball 19, ball 19 and permanent tooth 18 engagements.The external diameter of permanent tooth 8, roller 18 and ball 19 all equates.Permanent tooth 8 is definite value (promptly waiting circular arc) with the radius of curvature of the curve of ball 19 contact pointss in engagement process.
Claims (2)
1, a kind of Isocircular-arc fully-rolling movable gear driving device, comprise the body (5) that has ventilative cap (4), permanent tooth dish (7) and end cap (9), body (5), permanent tooth dish (7) and end cap (9) are connected as a single entity by screw rod (10), in body (5), be provided with and have two rolling bearings (3,22) output shaft (1), two rolling bearings (3 on the output shaft (1), 22) separate with spacer (23), be provided with seal ring (2) and retaining ring (24) between the axis hole of the output terminal of output shaft (1) and body (5), output shaft (1) the other end is a movable teeth rack, be provided with rolling bearing (21) in the bearing hole of its end face, the endoporus of rolling bearing (21) is equipped with input shaft (14), output shaft (1) is connected as a single entity by rolling bearing (21) and input shaft (14), between the axis hole of the other end of input shaft (14) and end cap (9), be provided with snap ring (11), (15), rolling bearing (12) and seal ring (13), the output terminal of input shaft (14) is provided with the shock wave wheel (16) of two off-centre side by side, the off-centre of the shock wave of two off-centre wheel (16) 180 degree that stagger are installed, on each shock wave wheel (16), respectively be provided with a rolling bearing (17,20), be provided with two groups of rotatable cylindrical permanent tooths (8) in the teeth groove of permanent tooth dish (7), it is characterized in that at rolling bearing (17,20) be equipped with oscillating tooth in surface, outer ring and the chute on the movable teeth rack between the permanent tooth (8), oscillating tooth is made up of roller (18) and ball (19), end face of roller (18) and rolling bearing (17,20) surface, outer ring contact, the other end contacts with ball (19), ball (19) and permanent tooth (8) engagement, permanent tooth (8), the external diameter of roller (18) and ball (19) all equates, and the radius of curvature of the curve of permanent tooth (8) and ball (19) contact points is definite value (promptly waiting circular arc).
2, Isocircular-arc fully-rolling movable gear driving device as claimed in claim 1, it is characterized in that being equipped with oscillating tooth in the chute on the movable teeth rack between surface, the outer ring of rolling bearing (17,20) and permanent tooth (8), oscillating tooth is made up of ball (19), ball (19) contacts and meshes with permanent tooth (8) with the surface, outer ring of rolling bearing (17,20), the external diameter of permanent tooth (8), ball (19) all equates, and the radius of curvature of the curve of permanent tooth (8) and ball (19) contact points is definite value (promptly waiting circular arc).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92217621 CN2150384Y (en) | 1992-08-21 | 1992-08-21 | Equi-arc full-rolling movable gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92217621 CN2150384Y (en) | 1992-08-21 | 1992-08-21 | Equi-arc full-rolling movable gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2150384Y true CN2150384Y (en) | 1993-12-22 |
Family
ID=33765388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92217621 Expired - Fee Related CN2150384Y (en) | 1992-08-21 | 1992-08-21 | Equi-arc full-rolling movable gearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2150384Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343895A (en) * | 2014-09-29 | 2015-02-11 | 合肥波林新材料有限公司 | Self-compensating zero backlash planetary transmission reducer |
| CN105179622A (en) * | 2015-09-08 | 2015-12-23 | 重庆大学 | Small-tooth-difference sliding-tooth steel ball transmission mechanism |
| CN108105361A (en) * | 2018-01-31 | 2018-06-01 | 湖州中云机械制造有限公司 | A kind of sinusoidal differential reduction gear of mechanical arm |
-
1992
- 1992-08-21 CN CN 92217621 patent/CN2150384Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343895A (en) * | 2014-09-29 | 2015-02-11 | 合肥波林新材料有限公司 | Self-compensating zero backlash planetary transmission reducer |
| CN105179622A (en) * | 2015-09-08 | 2015-12-23 | 重庆大学 | Small-tooth-difference sliding-tooth steel ball transmission mechanism |
| CN108105361A (en) * | 2018-01-31 | 2018-06-01 | 湖州中云机械制造有限公司 | A kind of sinusoidal differential reduction gear of mechanical arm |
| CN108105361B (en) * | 2018-01-31 | 2024-02-20 | 湖州中云机械制造股份有限公司 | Sine differential gear reducer of mechanical arm |
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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 |