CN1020383C - Full-rolling movable teeth drive - Google Patents
Full-rolling movable teeth drive Download PDFInfo
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- CN1020383C CN1020383C CN 91101060 CN91101060A CN1020383C CN 1020383 C CN1020383 C CN 1020383C CN 91101060 CN91101060 CN 91101060 CN 91101060 A CN91101060 A CN 91101060A CN 1020383 C CN1020383 C CN 1020383C
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- roller
- tooth
- oscillating tooth
- bearing pin
- dish
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Abstract
The present invention relates to full-rolling movable tooth drive device which adopts movable tooth drive device with small tooth difference and rolling force transmitting structure. The present invention overcomes sliding friction existing in an original force transmitting element of the existing movable tooth drive device, and the full-rolling movable tooth drive is realized. The drive device has the characteristics of high efficiency, big bearing capability, large transmission ratio, small size and light weight. The present invention is suitable for being designed into a speed reducer of a general series, and the superiority of the present invention is obvious in drive devices with big power. The present invention can also be directly used for driving various special devices.
Description
The present invention relates to a kind of universal machine transmission device of full-rolling movable teeth transmission.
Existing Oscillating Tooth Gear Reducer, mode of transfer force all exists serious sliding friction inevitably between its oscillating tooth and the oscillating tooth dish, thereby has brought transmission efficiency low, the shortcoming that bearing capacity is weak.For overcoming above-mentioned defective, domestic and international many entity and individual all are devoted to seek new more rational mode of transfer force, have proposed multiple organization plan, but all fail to realize full transmission of rolling.For example:
1。China patent CN85200606 in 1985 oscillating tooth pin gear speed reducer is to utilize a capacity eccentric bearing to drive one group of oscillating tooth of doing radial motion, the transmission with the engagement of pin tooth.Peripheral force output is to transmit by post hole between oscillating tooth cylinder and the oscillating tooth dish.This structure, load-carrying surface is bigger, and it is less to wear and tear, but sliding friction is bigger between oscillating tooth and the oscillating tooth dish, has influenced efficient, and temperature rise is higher.
2。China patent CN85101702 in 1985, be to utilize an eccentric wheel assembly c to drive one group of roller of doing radial motion, with string of a musical instrument wheel a engagement driving, realized the roller transmission between its roller and eccentric wheel assembly c and the string of a musical instrument wheel a, but the roll piece (ball or roller) among its rolling frame b lays in the window of dividing equally along circumference, it is tied, therefore, when transmitting peripheral force between roll piece and the window, have very big slide relative, and loaded area is little.Therefore, serious wear, efficient are also low.
3。Soviet Union patent SU-1307129 in 1985 utilizes the eccentric bearing of installing, and drives one group of cylinder type roller and internal gear engagement driving, has realized rolling between roller and capacity eccentric bearing and the internal gear.The two ends of its roller are equipped with slide block, and roller is bearing on the slide block with little axle, and slide block is placed in the oscillating tooth dish.This structure has been avoided the direct transmission peripheral force between roller and the oscillating tooth dish hole, and uses the slide block power transmission instead, has increased area of contact, has reduced wearing and tearing.But still having sliding friction, transmission efficiency is low and the big problem of wearing and tearing is still unresolved.
Task of the present invention is: at having sliding friction in the existing Oscillating Tooth Gear Reducer, efficient is low, and the defective of serious wear is designed a kind of oscillating tooth force transferring structure of full rolling, has realized the full-rolling movable teeth transmission.
Content of the present invention is: form shock wave device with eccentric wheel (5) overcoat rolling bearing (8) and shock wave dish (9); With the band bearing pin (11) round roller (10) as oscillating tooth, form Tooth wheel with changeable teeth in the radial groove of two supports on the oscillating tooth dish of oscillating tooth with bearing pin (11); With the envelope curver of circular mobile tooth is that the internal gear of flank profil is as firm tooth gear (27).By the transmission device that above three parts are formed, fix one arbitrarily, other two can form deceleration or speedup transmission.
In three parts of this class transmission device, exist three kinematic pair round oscillating tooth: between shock wave device and the oscillating tooth; Between oscillating tooth and the firm tooth gear; And between oscillating tooth and the oscillating tooth dish.Motion between three kinematic pair pins down mutually, and is inharmonious mutually, has slide relative inevitably.Above-mentioned in the prior art first kinematic pair, owing in the shock wave device rolling bearing is housed, outer shroud is free to rotate, thereby breaks away from pining down of other two kinematic pair, but latter two kinematic pair is cut apart mutually, thereby can't avoid sliding friction.The present invention is designed to roller (10) and bearing pin (11) two-part with oscillating tooth, is lined with needle roller (12) between two-part, makes between roller (10) and bearing pin (11) free to rotately, has occurred two rotation surface relatively freely on the oscillating tooth.The oscillating tooth dish is designed to by the two halves dish (20) that has radial groove, and (21) are formed, and in groove, bearing pin (11) can freely roll on the side of groove, and roller (10) does not contact with the oscillating tooth dish bearing pin of oscillating tooth (11) when doing radial motion with the loose fit frame.Like this, the kinematic pair between oscillating tooth and oscillating tooth dish is separated from three kinematic pair that pin down mutually, three kinematic pair all can freely rotate independently, all do pure rolling when transmission relatively, have realized the Oscillating Tooth Gear Reducer of full rolling.
Advantage of the present invention is: because the kinematic pair in the whole transmission device has been realized rolling friction, therefore, have the transmission efficiency height with the product of manufacturing of the present invention, temperature rise is low, and it is little to wear and tear, and the life-span is long, and bearing capacity is big, and volume is little, lightweight characteristics.
Fig. 1 represents the full roller active-tooth transmission of the present invention front view.
Fig. 2 represents the full roller active-tooth transmission of the present invention sectional view.
Fig. 3 represents the front view of oscillating tooth half dish in the full roller active-tooth transmission.
Fig. 4 represents oscillating tooth structural representation in the full-rolling movable teeth transmission device.Wherein:
Figure a represents with the structure of standard rolling bearing as oscillating tooth.
Figure b represents the oscillating tooth structure of needle roller supporting rollern.
Figure c represents the oscillating tooth structure with the sleeve supporting roller.
Figure d represents that bearing pin and shock wave device and solid gear directly mesh, and with the oscillating tooth structure of two ends rolling bearing.
Figure e represents that bearing pin and shock wave device and solid gear directly mesh, and overlaps the oscillating tooth structure of supporting with the two ends antifriction.
Figure f represents that roller directly is enclosed within the oscillating tooth structure on the bearing pin.
Most preferred embodiment of the present invention-full-rolling movable teeth transmission speed reducer.
Referring to Fig. 1,2.
Eccentric wheel (5) and rolling bearing (8) and shock wave dish (9) are housed on the input shaft (1), form shock wave device, be the input part of this machine.Input shaft (1) is bearing on rolling bearing (2) and (3).When input shaft (1) rotates, drive shock wave device and do plane motion, shock wave dish (9) drives the oscillating tooth of this machine and does radial motion.Oscillating tooth is made up of the needle roller of installing between roller (10) bearing pin (11) and roller (10) and bearing pin (11) (12), skids off for preventing needle roller (12), and catch (13) also is housed.Roller (10) is meshed with shock wave dish (9) and forms a kinematic pair.Roller (10) is meshed with firm tooth gear (27) again and forms another kinematic pair simultaneously.The envelope that firm tooth gear (27) tooth surface is a roller (10) when doing radial motion and make the constant speed circumferential movement again simultaneously draws.When roller (10) is driven when doing radial motion by the shock wave dish (9) that clockwise rotated, the flank engagement of roller (10) and firm tooth gear (27), roller (10) rolls along the permanent tooth flank of tooth, and promptly roller (10) is also made counterclockwise circumferential movement simultaneously doing radial motion.Each oscillating tooth is to coil in the radial groove of opening on (20) and (21) (37) at two oscillating tooths half with bearing pin (11) two ends frame.Two oscillating tooth half dishes (20) are connected by screw by the hole in the fan-shaped bump of going up separately (32) with (21), the seam (35) that wherein is equipped with in the hole on locating stud and the dish makes accurately location of two oscillating tooths, half dish (20) and (21) together, forms a secondary oscillating tooth dish.Oscillating tooth dish and Zh oscillating tooth formed a Tooth wheel with changeable teeth.The roller of oscillating tooth does not contact with the oscillating tooth dish, and circumferential movement and peripheral force that roller (10) produces are to be delivered on the oscillating tooth dish by bearing pin (11).Because bearing pin (11) is loose fit with the radial groove that oscillating tooth half coils on (20) and (21), bearing pin (11) radial motion is unfettered, again owing to adorn between bearing pin (11) and the roller (10) by needle roller (12), can free pure lift-over move, so bearing pin (11) is pressed on the side of groove by peripheral force, make radial rolling along the groove side, and peripheral force rotates the oscillating tooth dish.According to few tooth difference rigidity engagement driving principle, for realizing continuous transmission, the oscillating tooth number is Zh, and the firm tooth gear number of teeth should be Zh ± 1.This preferred firm tooth gear in routine pressing force angle (27) number of teeth is Zh-1.
When shock wave dish (9) peak and roller (10) engagement, roller (10) is in the bottommost of permanent tooth, and this moment, roller (10) radial motion reached a limit, and peripheral force is zero.When shock wave dish (9) peak turned over this roller (10), the circumferential movement of oscillating tooth dish acted on bearing pin (11) by the another side of radial groove at this moment, passes to roller (10).Roller (10) is done the pure motion of rolling along firm tooth gear (27) toothed surface, produces a radial component, and promotion oscillating tooth bearing pin (11) rolls along oscillating tooth disc radial groove side and makes the oscillating tooth return.When shock wave dish (9) minimum point and roller (10) engagement, roller (10) radial motion reaches another limit, and return finishes.Roller (10) will mesh with next permanent tooth, begin next working procedure.In the Tooth wheel with changeable teeth Zh oscillating tooth, in running order with the contacted half oscillating tooth of shock wave dish (9) peak first half, second half is in the return state.Oscillating tooth is all made pure rolling in work and return process.
In order to make speed reducer internal structure stress equalization, the eccentric direction that another and aforementioned shock wave dish have been installed on input shaft (1) differs 180 ° shock wave device and corresponding Tooth wheel with changeable teeth.This Tooth wheel with changeable teeth also has Zh oscillating tooth, and the oscillating tooth dish is made up of two oscillating tooths that are connected with aforementioned Tooth wheel with changeable teeth the same manner, half dish (22) and (23).Oscillating tooth half dish (21) and (22) is along the angle teeth groove that interlaces half in two Tooth wheel with changeable teeth, and is continuous with screw by hole (34).Wherein in a hole (39) locating stud is housed, makes accurately location of two oscillating tooths, half dish (21) and (22) with the seam (33) that coils.When all oscillating tooths of a side in the Tooth wheel with changeable teeth were in running order, all oscillating tooths of opposite side relative 180 ° in another Tooth wheel with changeable teeth were in running order, make the stress equalization in the speed reducer.Two Tooth wheel with changeable teeth link to each other and form an integral body, and its two ends are bearing in respectively on rolling bearing (15) and (29), are linked to each other with output shaft (19) by key (18) by oscillating tooth half dish (20), and as the output of this machine, distance is changeed in output.
According to different usage requirements, present embodiment can be designed to vertical or horizontal; By size and different speed ratios, according to characteristics of the present invention, oscillating tooth can design different structure.When the speed reducer size big or velocity ratio hour, roller (10) can adopt the standard rolling bearing directly to be contained on the bearing pin (11), (as Fig. 4 a); When less or velocity ratio was big when the speed reducer size, the available needle roller of roller (10) was bearing on the bearing pin (11), (as Fig. 4 b); Bigger or size is littler when velocity ratio, in the time of can't packing needle roller into, can adorn an antifriction cover (40) in the roller (10) and replace needle roller, (as Fig. 4 c) or roller (10) directly is bearing on the bearing pin (11) (as Fig. 4 f).In addition, can be as requested with the oscillating tooth structural design also as roller with bearing pin (11), with band cover needle bearing (41) or antifriction cover (42) with the bearing pin two supports in the radial groove of oscillating tooth dish, this structure, bearing pin (11) directly is meshed with shock wave dish (9) and firm tooth gear (27), bearing pin (11) is free to rotate, and rolls in the radial groove of oscillating tooth dish with the overcoat or the antifriction cover (42) of needle bearing (41).
Claims (4)
1, a kind of full-rolling movable teeth transmission device comprises:
Shock wave device: form by eccentric wheel, rolling bearing and shock wave dish.
Tooth wheel with changeable teeth: form by oscillating tooth dish with radial groove and Zh the oscillating tooth that is loaded in the radial groove.
Firm tooth gear: by one have with the roller of oscillating tooth mutually the internal gear of the curved surface flank profil of envelope form.
Its tooth number Z g=Zh ± 1.
The invention is characterized in: the oscillating tooth in this transmission is made up of roller (10) and bearing pin (11).One secondary oscillating tooth dish is made up of two and half dishes, has Zh radial groove (37) on each half dish.The bearing pin of oscillating tooth (11) is loaded in the radial groove with loose fit, and bearing pin (11) can be made radial rolling along the groove side.The roller of oscillating tooth (10) and does not contact with the oscillating tooth dish between the two halves dish.
2, the active-tooth transmission that rolls entirely according to claim 1 is characterized in that: between roller of oscillating tooth (10) and the bearing pin (11) needle roller is housed, it is moving to make it can do free pure lift-over each other.The roller of oscillating tooth (10) directly selection standard rolling bearing is loaded on the bearing pin, supports without needle roller; Also can be between roller (10) and the bearing pin (11) without needle roller, and adorn an antifriction cover, or roller (10) directly is loaded on the bearing pin (11).
3, full-rolling movable teeth transmission device according to claim 1 is characterized in that: its oscillating tooth can be with bearing pin as roller, and between bearing pin and two oscillating tooths, half disc radial groove with the needle bearing or the supporting of antifriction sleeve of two band covers.
4, full-rolling movable teeth transmission device according to claim 1 is characterized in that: available two row's full-rolling movable teeth transmission devices, and two directions of arranging by shock wave device differ 180 °, constitute the double full-rolling movable teeth transmission of symmetric arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101060 CN1020383C (en) | 1991-02-22 | 1991-02-22 | Full-rolling movable teeth drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101060 CN1020383C (en) | 1991-02-22 | 1991-02-22 | Full-rolling movable teeth drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1055986A CN1055986A (en) | 1991-11-06 |
| CN1020383C true CN1020383C (en) | 1993-04-28 |
Family
ID=4904941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101060 Expired - Fee Related CN1020383C (en) | 1991-02-22 | 1991-02-22 | Full-rolling movable teeth drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1020383C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068664C (en) * | 1997-02-17 | 2001-07-18 | 陈勃 | Compound rolling free gear drive |
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| CN101774345A (en) * | 2010-02-04 | 2010-07-14 | 南京信息工程大学 | Hybrid electric vehicle coupler |
| CN102691752A (en) * | 2011-03-21 | 2012-09-26 | 陈仕贤 | Composite rolling active-tooth transmission device and method for performing transmission by using the same |
| CN102312960A (en) * | 2011-08-29 | 2012-01-11 | 浙江恒丰泰减速机制造有限公司 | Precision oscillating tooth transmission reducer |
| CN102937048B (en) * | 2012-11-05 | 2015-04-22 | 四川大学 | Two-phase outer cam shock wave rolling transmission internal combustion engine |
| CN103410923A (en) * | 2013-08-21 | 2013-11-27 | 湖南恒至凿岩科技有限公司 | Sleeve oscillating-teeth transmission device with high-order ellipse |
| CN103410922A (en) * | 2013-08-21 | 2013-11-27 | 湖南恒至凿岩科技有限公司 | Double-arc swinging oscillating-teeth transmission device |
| CN103410928B (en) * | 2013-08-21 | 2016-04-06 | 湖南恒至凿岩科技有限公司 | High-order elliptic plane steel ball moving teeth transmission device |
| CN103410925A (en) * | 2013-08-21 | 2013-11-27 | 湖南恒至凿岩科技有限公司 | Polyhedral swing movable tooth transmission device |
| CN105805271A (en) * | 2016-02-05 | 2016-07-27 | 秦皇岛博硕光电设备股份有限公司 | Solar battery string setter preventing twining of gas supply pipeline and adopted pin roller movable tooth reducer |
| CN110285198A (en) * | 2019-07-23 | 2019-09-27 | 温州市日康烟具厂 | A kind of cycloid reducer |
| CN111706661A (en) * | 2020-06-28 | 2020-09-25 | 周江 | Movable tooth transmission device with preset internal tooth profile |
-
1991
- 1991-02-22 CN CN 91101060 patent/CN1020383C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068664C (en) * | 1997-02-17 | 2001-07-18 | 陈勃 | Compound rolling free gear drive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1055986A (en) | 1991-11-06 |
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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| 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 |