CN1082675A - Isocircular-arc fully-rolling movable gear driving device - Google Patents
Isocircular-arc fully-rolling movable gear driving device Download PDFInfo
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- CN1082675A CN1082675A CN 92107104 CN92107104A CN1082675A CN 1082675 A CN1082675 A CN 1082675A CN 92107104 CN92107104 CN 92107104 CN 92107104 A CN92107104 A CN 92107104A CN 1082675 A CN1082675 A CN 1082675A
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- tooth
- ball
- permanent
- rolling
- rolling bearing
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Abstract
The invention provides a kind of Isocircular-arc fully-rolling movable gear driving device, it comprises the structure characteristic of existing oscillating tooth ripple mechanical transmission, and existing oscillating tooth is improved, and the oscillating tooth after the improvement is made up of roller and ball two-part, ball and permanent tooth engagement.This device has guaranteed oscillating tooth and the whole tight mesh of permanent tooth energy in whole transmission engagement process, has reduced noise.In addition, permanent tooth and oscillating tooth are standard round, are the pure rolling transmission in the engagement process, have reduced friction factor, have improved efficient; Roller and ball adopt standard round besides, and processing technology is simple, has reduced cost of production.
Description
The present invention 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 underrange (being the non-circular arc that waits) with the radius of curvature of the curve of oscillating tooth 25 contact pointss.Because the technology capability of oscillating tooth 25 crown portion curves is poor, 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, noise reach 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 objective of the invention is the problems referred to above that oscillating tooth ripple mechanical transmission exists are improved, 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 invention 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; All oscillating tooths in 180 °～360 ° scopes then reduce under the effect at 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 whole motion 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 whole transmission engagement process, and can reach whole engagement is 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, reduced friction factor, improved efficient, kept away two thereby solved, with regard to the problem of centre besides roller and ball adopt standard round, 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 provided 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, and the other end contacts with ball 19, ball 19 and permanent tooth 8 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 (11), 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, a kind of Isocircular-arc fully-rolling movable gear driving device as claimed in claim 1, the oscillating tooth after it is characterized in that improving also can only adopt ball (19), cancellation roller (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107104 CN1082675A (en) | 1992-08-21 | 1992-08-21 | Isocircular-arc fully-rolling movable gear driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107104 CN1082675A (en) | 1992-08-21 | 1992-08-21 | Isocircular-arc fully-rolling movable gear driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1082675A true CN1082675A (en) | 1994-02-23 |
Family
ID=4942665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92107104 Pending CN1082675A (en) | 1992-08-21 | 1992-08-21 | Isocircular-arc fully-rolling movable gear driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082675A (en) |
-
1992
- 1992-08-21 CN CN 92107104 patent/CN1082675A/en active Pending
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