CN2359523Y - Conjugate curves speed reducer - Google Patents
Conjugate curves speed reducer Download PDFInfo
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- CN2359523Y CN2359523Y CN 98251918 CN98251918U CN2359523Y CN 2359523 Y CN2359523 Y CN 2359523Y CN 98251918 CN98251918 CN 98251918 CN 98251918 U CN98251918 U CN 98251918U CN 2359523 Y CN2359523 Y CN 2359523Y
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- disc
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- output disc
- telophragma
- output
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Abstract
The utility model relates to a speed reducing device. The interior of an inner cavity composed of a box body and an end cover is provided with at least one set of conjugate transmission components. Each conjugate transmission component is composed of an input disc, a grooved disc, balls and an output disc. The period of a conjugate curve rolling track on the input disc is 1. The period of the output disc is 1+2n. The grooved disc is uniformly distributed with radial direction long holes. The balls are arranged in the long holes of the grooved disc. Simultaneously, the balls are embedded in the rolling tracks on the input disc and the output disc. The input disc and the output disc are respectively fixed to the end cover and the box body through bearings. The inner holes of the input disc and the output disc are both provided with key grooves which are respectively matched with an input shaft and an output shaft. The box body, the grooved disc and the end cover are fixed with screws. The speed reducing device has the advantages of big transmission ratio, small size, transmission stability, low noise, high transmission efficiency, simple structure and easy fabrication. The speed reducing device can be used for speed reducing machines. The speed reducing device is a generation changing product of speed reducers.
Description
The utility model relates to a kind of speed reducer, particularly the conjugate curve retarder.
The speed reducer kind is a lot of at present, and is most widely used with gear reducer, but the gear reducer volume is big, the noise height, not steady, efficient is low, and a retarder also is difficult to realize big speed ratio, although planet wheel decelerator can be realized big speed ratio, it also is a gear structure, and therefore above-mentioned shortcoming is inreal solves, worm type of reduction gearing also can be realized big speed ratio, but its efficient is lower, and needs a large amount of copper colored materials, and cost is higher.Although it is little that harmonic gear reducer has a volume, the advantage that the big efficient of velocity ratio is high, the flexbile gear processing of harmonic gear reducer is very difficult, and the material and the accuracy of manufacturing of flexible bearing are had relatively high expectations, and therefore uses also less in practice.
The purpose of this utility model is to design that a kind of volume is little, simple in structure, stable drive, conjugate curve retarder that noise is low.
Another purpose of the present utility model is to find the input of satisfying power and velocity ratio, the conjugate curve raceway equation on the output disc.
The utility model is achieved in that the structure of casing and end cap, and it is identical, the inner chamber that the two constituted is cross for " protruding ", one cover conjugation transmitting assemblies is housed in it at least, the conjugation transmitting assemblies is made up of input disc, slotted disk, ball, output disc, and the conjugate curve raceway cycle on the input disc is T
Go into=1, the conjugate curve raceway cycle on the output disc is T
Go out=1+2n (n is a natural number), conjugate curve raceway on every group of input, the output disc is measure-alike, its cross section is all circular arc, radius of arc is identical with the ball radius or big slightly, and uniform radially slotted hole is arranged on the slotted disk, and ball is contained in the slotted hole of slotted disk, be inlaid in simultaneously in the raceway on input, the output disc, ball can only roll or slide along slotted hole, and input, output disc link to each other by the ball on the slotted disk, realize transmission of power; Input, output disc are flange-type structure, there is endoporus at the center, the input disc endoporus has keyway, input shaft passes the output disc endoporus and cooperates with input disc, the output disc endoporus has spline, cooperate with output shaft, input disc and output disc are fixed by bearing and end cap and casing respectively, and casing, slotted disk and end cap are screwed.
Conjugate curve raceway equation on the utility model input, the output disc is: ρ=r+AsinT θ, (ρ---conjugate curve radius vector, θ---conjugate curve radius vector and initial radius vector angle, the T---conjugate curve cycle), Base radius r 〉=(D+d1/4 (suitable bearing outside diameter of D---wherein, the suitable bearing bore diameter of d---), amplitude A=r/ (Ttg α), α in the tool≤45 degree.
The utility model compared with prior art has following advantage: 1) owing to the employing conjugate-curve ball slows down, so volume is little, stable drive, and noise is low; 2) can realize big speed ratio; 3) transmission efficiency height, the actual measurement velocity ratio is 1: 49 o'clock, transmission efficiency η=96～98%; 4) owing to adopt with end input, output, in some special speed reducer, its installation volume is littler, more suitable, as electric hoist, factory's production line line belt etc., 5), use more insurance in the hoisting heavy occasion because power can only promptly have reverse auto-lock function from input shaft to the output shaft transmission; 6) pretension is realized the transmission of no gap; 7) simple in structure, easily manufacturing, cost is low, is the update product of retarder.
Be elaborated below in conjunction with accompanying drawing.
Fig. 1 is the utility model sectional view;
Fig. 2 is the utility model input disc right elevation;
Fig. 3 is the utility model output disc left view.
Fig. 1 is the utility model two cover transmitting assemblies embodiments, and the structure of casing 7 and end cap 2 is basic identical, and just the width of casing 7 is bigger, cooperates with end cap 2 rims of the mouth.The inner chamber of the two composition is " protruding " cross, and two cover conjugation transmitting assembliess are housed in it, the input disc 3 of the first cover conjugation assembly by bearing fixing on end cap 2, input disc 3 is a flange-type structure, there is endoporus at the center, and keyway is arranged on the endoporus, is used for cooperating with input shaft 8.On casing 7, casing 7 is a flange-type structure also to the second cover conjugation assembly output disc 6 by bearing fixing, and there is endoporus at the center, and feather key is arranged on the endoporus, is used for and output shaft (not drawing among the figure) cooperation.On output disc 6 opposing sides of the input disc 3 of the first cover conjugation assembly and the second cover conjugation assembly conjugate curve raceway is arranged respectively, shown in Fig. 2,3.Wherein 13 cycles of raceway on the input disc 3 are T
Go into=1, output disc 6 is T
Go out=1+2n, n are natural number.Between input disc 3 and output disc 6 telophragma 4 is arranged, a conjugate curve raceway is all arranged on the both ends of the surface of telophragma 4, it is the output disc of the first cover conjugation assembly, is again the input disc of the second cover conjugation assembly.With input disc 3 near the end face of telophragma 4 on the conjugate curve cycle be T
Go out1=1+2n, n are natural number, with output disc 6 near telophragma 4 end faces on the conjugate curve cycle be T
Go into=1.Wherein first cover can be identical with the velocity ratio of the second cover conjugation assembly, also can be different, and promptly the value of n can be the same or different.One slotted disk 12 and 11 are respectively arranged between telophragma 4, input disc 3 and the output disc 6, two slotted disk 12,11 structures are identical, uniform radially slotted hole 15 is arranged on it, put into a ball 10 in each slotted hole 15, ball 10 can only roll or slide along the slotted hole on the slotted disk 12,11 15, it also is embedded in the conjugate curve raceway 13,14 on input disc 3, telophragma 4 and output disc 6 end faces, with ball 10 transmitting torques.The endoporus of two slotted disks 12,11 is by the convex shoulder location of sliding sleeve 9, and its convex shoulder width is thicker slightly than telophragma 4, and to guarantee that telophragma 4 can rotate, sliding sleeve 9 external diameters and telophragma 4 internal diameters are Spielpassung, and the endoporus of sliding sleeve 9 and input shaft 8 are Spielpassung.Between two slotted disk 12,11 exterior edge faces back-up ring 5 is arranged, the thickness of back-up ring 5 is identical with the width of sliding sleeve 9 convex shoulders, back-up ring 5 endoporus and external diameter respectively with telophragma 4 and casing 2 Spielpassung.At slotted disk 12,11 and back-up ring 5, and between slotted disk 12,11 and sliding sleeve 9 convex shoulders packing ring (not drawing among the figure) can also be arranged, adjusting telophragma 4 and slotted disk 12,11, and the gap between telophragma 4 and input, the output disc 3,6, to reach best drive state.Corresponding hole is arranged on back-up ring 5, two slotted disks, 12,11 end faces, also distinguish porose and tapped hole on Dui Ying end cap 2 and the casing 7 with it, the hole that screw 1 passes on end cap 2, slotted disk 12,11, the back-up ring 5 screws in the tapped hole of casing 7, slotted disk 12,11, back-up ring 5 and sliding sleeve 9 is fixing, and input disc 3, telophragma 4, output disc 6 can rotate, and adjusts suitable can the realization and do not have the gap transmission.Can there be sealing cover (not drawing among the figure) at the endoporus place of end cap 2.The foregoing description has only a telophragma 4, i.e. two groups of conjugation assemblies can not have telophragma 4 according to the needs of velocity ratio, and a plurality of telophragmas 4 are perhaps arranged.The radius of arc of the cross section of every group of above-mentioned conjugate curve raceway is identical with this radius of organizing ball 10, but respectively organizes the conjugate curve raceway and ball 10 radiuses can be identical, also can be different.Conjugate curve raceway track on each dish is the utility model key technology, design and processing custom according to routine, the conjugate curve raceway that often processes when 200 rev/mins of (input shaft 8 rotating speeds) left and right sides, promptly occur locked mutually can't rotation phenomenon, and noise is also very big when rotating.Below conjugate curve raceway track is further elaborated.The equation of conjugate curve is ρ=r+A.SinT θ, wherein ρ--the radius vector of-conjugate curve, θ--any radius vector of-conjugate curve and initial radius vector angle, the cycle of T---conjugate curve, the Base radius of r---conjugate curve, the amplitude of A---conjugate curve.Determine the equation of locus of conjugate curve, key is to determine r and A.Calculate stressed F according to power and velocity ratio, select suitable bearing load, change by the cycle by dynamic load rating, medium impact is calculated, select the deep groove ball bearing of 1000900 types or 7000100 types, with reference to 3.3 the 118th pages of " mechanical design handbook " third edition, second volumes, by C=f
nf
mf
dF/f
nf
r≤ C
0aSelect the inner diameter d and the outer diameter D of suitable bearing.Get the Base radius r of conjugate curve 〉=(D+d)/4, get that ball diameter B 〉=(D-d)/4, conjugate curve raceway amplitude is A=r/Ttg α, wherein pressure angle α≤35 degree.Above-mentioned conjugate curve Base radius r and ball diameter B value are big more, the utility model structure is big more, but bearing capacity is strong more, generally get the number of equaling, pressure angle α value is more little, and amplitude A is big more, and the utility model structure is big more but transmission is steady more, noise is also more little, and velocity ratio also can be big more.
Claims (9)
1, a kind of conjugate curve retarder, it is characterized in that: the structure of casing (7) and end cap (2) is basic identical, the inner chamber of the two formation is that " protruding " is cross, one cover conjugation transmitting assemblies is housed in it at least, the conjugation transmitting assemblies has axle to go into dish (3), slotted disk (12), (11), ball (10), output disc (6) composition, and the conjugate curve raceway cycle on the input disc (3) is T
Go into=1, the conjugate curve raceway cycle on the output disc (6) is T
Go out=1+2n (n is a natural number), each organizes input disc (3), conjugate curve raceway on the output disc (6) is measure-alike, its cross section is all circular arc, radius of arc is identical or big slightly with ball (10) radius, slotted disk (12), uniform radially slotted hole (15) is arranged (11), ball (10) is contained in slotted disk (12), (11) in the slotted hole (15), be inlaid in input simultaneously, output disc (3), (6) raceway on (13), (14) in, ball (10) can only roll or slide along slotted hole (15), input, output disc (3), (6) by slotted disk (12), (11) ball on links to each other, and realizes transmission of power; Input, output disc (3), (6) are flange-type structure, there is endoporus at the center, input disc (3) endoporus has keyway, input shaft (8) passes output disc (6) endoporus and cooperates with input disc (3), output disc (6) endoporus has feather key, cooperate with output shaft, input disc (3) and output disc (6) are fixing by bearing and end cap (2) and casing (7) respectively, and casing (7), slotted disk (12), (11) and end cap (2) are fixing with screw (1).
2, retarder according to claim 1, it is characterized in that: between input disc (3) and output disc (6), telophragma (4) is arranged, a conjugate curve raceway is all arranged on the both ends of the surface of telophragma (4), it is the output disc of the first cover conjugation assembly, be again input disc of next cover conjugation assembly, with input disc (3) near the end face of telophragma (4) on the conjugate curve raceway cycle be T
Go out=1+2n (n is a natural number), with output disc (6) near end face on the conjugate curve cycle be 1; Between telophragma (4) and the input disc (3), and between telophragma (4) and telophragma (4) or the output disc (6) slotted disk (12), (11) are arranged respectively, the endoporus of each slotted disk (12), (11) is by the convex shoulder location of sliding sleeve (9), the endoporus of sliding sleeve (9) and input shaft (8) Spielpassung, between slotted disk (12) and the slotted disk (11) back-up ring (5) is arranged, screw hole is also arranged at slotted disk (12), (11) and back-up ring (5) corresponding to the screw hole place on end cap (2) and the casing (7).
3, retarder according to claim 2 is characterized in that: can not have telophragma (4), a plurality of telophragmas (4) are perhaps arranged.
4, retarder according to claim 1 is characterized in that: the radius of the radius of arc of every group of conjugate curve raceway cross section and this group ball (10) is identical or big slightly, but respectively organizes the conjugate curve raceway and ball (10) radius can be identical, also can be different.
5, retarder according to claim 1 is characterized in that: each is organized conjugation assembly velocity ratio and can be the same or different.
6, retarder according to claim 2 is characterized in that: the thickness of back-up ring (5) is identical with the convex shoulder width of sliding sleeve (9), and is thicker slightly than telophragma (4).
7, retarder according to claim 2 is characterized in that: slotted disk (12), (11) and end cap (2), telophragma (4), sliding sleeve (9) convex shoulder and and output disc (6) between packing ring is arranged.
8, according to the described retarder of arbitrary claim in the claim 1 to 7, it is characterized in that: the conjugate curve raceway equation on input disc (3), telophragma (4) and the output disc (6) is: ρ=r+A.SinT θ, r 〉=(D+d)/4 wherein, A=r/ (Ttg α), α≤35 °.
9, according to claim 1,2 or 7 described retarders, it is characterized in that: the central hole of end cap (2) has sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98251918 CN2359523Y (en) | 1998-12-24 | 1998-12-24 | Conjugate curves speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98251918 CN2359523Y (en) | 1998-12-24 | 1998-12-24 | Conjugate curves speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359523Y true CN2359523Y (en) | 2000-01-19 |
Family
ID=33995710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98251918 Expired - Fee Related CN2359523Y (en) | 1998-12-24 | 1998-12-24 | Conjugate curves speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359523Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642586A (en) * | 2017-11-13 | 2018-01-30 | 长江大学 | A kind of dish-like coaxial-type deceleration reversing arrangement |
| CN107701684A (en) * | 2016-08-08 | 2018-02-16 | 项惠仲 | Compressional wave reductor |
| CN109707802A (en) * | 2019-02-25 | 2019-05-03 | 燕山大学 | A kind of twin-stage integrated planar movable teeth reducer based on saddle coupling |
| CN112728017A (en) * | 2021-01-05 | 2021-04-30 | 珠海格力电器股份有限公司 | Speed reducer |
| CN117287496A (en) * | 2023-11-23 | 2023-12-26 | 华研谐波传动(山东)有限公司 | Curve ball speed reducer |
-
1998
- 1998-12-24 CN CN 98251918 patent/CN2359523Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701684A (en) * | 2016-08-08 | 2018-02-16 | 项惠仲 | Compressional wave reductor |
| CN107642586A (en) * | 2017-11-13 | 2018-01-30 | 长江大学 | A kind of dish-like coaxial-type deceleration reversing arrangement |
| CN107642586B (en) * | 2017-11-13 | 2023-11-17 | 长江大学 | Disc type coaxial speed reduction reversing device |
| CN109707802A (en) * | 2019-02-25 | 2019-05-03 | 燕山大学 | A kind of twin-stage integrated planar movable teeth reducer based on saddle coupling |
| CN109707802B (en) * | 2019-02-25 | 2020-12-22 | 燕山大学 | Two-stage integrated plane oscillating tooth speed reducer based on guide frame coupling |
| CN112728017A (en) * | 2021-01-05 | 2021-04-30 | 珠海格力电器股份有限公司 | Speed reducer |
| CN117287496A (en) * | 2023-11-23 | 2023-12-26 | 华研谐波传动(山东)有限公司 | Curve ball speed reducer |
| CN117287496B (en) * | 2023-11-23 | 2024-02-20 | 华研谐波传动(山东)有限公司 | Curve ball speed reducer |
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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 |