CN108561528B - Harmonic speed reducer - Google Patents
Harmonic speed reducer Download PDFInfo
- Publication number
- CN108561528B CN108561528B CN201810065903.6A CN201810065903A CN108561528B CN 108561528 B CN108561528 B CN 108561528B CN 201810065903 A CN201810065903 A CN 201810065903A CN 108561528 B CN108561528 B CN 108561528B
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- gear
- fixing frame
- ring
- chain wheel
- chain
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H49/00—Other gearings
- F16H49/001—Wave gearings, e.g. harmonic drive transmissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a harmonic reducer, which comprises a front fixing frame, an input shaft and a reducerThe output shaft, the chain ring, the toothed chain wheel, the swivel mount, two ring gears, the revolving stage bearing, the pinion, the after-fixing frame, be equipped with the chain wheel on the preceding mount, and link firmly with power take-off, preceding mount is whole with the after-fixing frame welding, three pinion equipartition is installed in the after-fixing frame, the input shaft is installed in after-fixing frame center and is constituted the revolute pair, the chain ring is installed between toothed chain wheel and interior chain wheel, the input shaft constitutes the dead axle train with three pinion and double ring gear, the input shaft rotates, rotate through pinion drive double ring gear, the drive ratio of input shaft and double ring gear is i1The double gear ring drives three gear chain wheels to rotate, the three gear chain wheels are used as wave generators in the harmonic speed reducer and form a harmonic speed reducer with a chain ring, an output shaft, a front fixing frame and a chain wheel on a rear fixing frame, and the transmission ratio of the double gear ring to the output shaft is i2The transmission ratio of the input shaft to the output shaft is i ═ i1×i2。
Description
Technical Field
The invention relates to the field of mechanical speed reduction transmission, in particular to a harmonic speed reducer.
Background
The harmonic gear transmission has the advantages of large transmission ratio, high transmission precision, good stability, simple structure, light weight, small volume and the like. The harmonic gear transmission transfers motion and power by mechanical harmonic generated by radial deformation of a thin-wall cylindrical flexible gear, wherein fatigue fracture of the thin-wall cylindrical flexible gear caused by overlarge bending stress is a main failure mode of the transmission, the bending stress in the flexible gear is in direct proportion to radial deformation and wall thickness, the radial deformation of the flexible gear is related to transmission ratio, the transmission ratio is smaller, the radial deformation is larger, the service life of the transmission is shorter, the wall thickness of the flexible gear is increased, the bending stress is increased, the service life is reduced, on the contrary, the wall thickness is reduced, the rigidity of the flexible gear is reduced, the stress concentration of gear teeth is increased, and even gear teeth interference occurs, so that the failure of the transmission device is aggravated,
the strength and service life of the flexible gear are related to the material and processing technology, high-quality alloy steel materials are generally adopted, quenching and tempering, nitriding, carburizing and shot blasting are carried out, and the dimensional accuracy, shape accuracy and surface quality of parts are strictly controlled, so that the manufacturing process of the harmonic gear transmission device is quite complex, the manufacturing cost is high, and the technical requirements of common manufacturers are difficult to achieve.
Disclosure of Invention
The invention aims to provide a harmonic reducer, which takes a roller chain as a flexible gear of harmonic transmission, avoids high-frequency elastic deformation of a cylindrical flexible gear, effectively increases transmission power and transmission stability, simplifies the structure and the manufacturing process, improves the reliability and the service life of the device, and greatly reduces the manufacturing difficulty and the manufacturing cost.
The technical scheme adopted by the invention is as follows: the utility model provides a harmonic speed reducer ware, includes preceding mount, input shaft, output shaft, chain ring, toothed chain wheel, swivel mount, two ring gears, revolving stage bearing, pinion, after-fixing frame, its characterized in that: the gear mechanism comprises a front fixing frame, a rear fixing frame, a pair of gear structures, an input shaft, a gear pair, a rotating pair, a gear structure and a gear structure, wherein a mounting hole is formed in one side of the front fixing frame, the front fixing frame is fixedly mounted on power output equipment, a front chain wheel is arranged on the other side of the front fixing frame, a circular through hole is formed in the center of the rear fixing frame, a rear chain wheel is arranged at one end of the rear fixing frame, the number of teeth of the front chain wheel is the same as that of the rear chain wheel, three hollow windows are uniformly distributed in the middle of the front chain wheel and the rear chain wheel, a pair of coaxial pinion mounting seats is arranged at the two ends of the outer side of each hollow window, the front fixing frame and the rear fixing frame are connected into a whole through welding, the positions of each tooth.
Furthermore, the rotating frame is circumferentially and uniformly provided with three pairs of toothed chain wheel frames and three chain supporting plates, the rotating frame and the rear fixing frame are coaxially mounted to form a rotating pair, an inner gear ring is arranged on the inner side of each double gear ring, an annular groove is formed in the middle of the outer side of each double gear ring, gear teeth are arranged on two sides of each groove, two turntable bearings are mounted between each double gear ring and the rotating frame, the two rotating pairs are formed by the two gear rings, and the inner gear rings of the double gear rings and the three small gears form a gear tooth meshing.
Furthermore, the middle part of the toothed chain wheel is of a chain wheel structure, gear structures are arranged on two sides of the chain wheel structure, three toothed chain wheels are respectively arranged at the top end of the toothed chain wheel frame arranged on the rotating frame and form a rotating pair with the rotating frame, and the three toothed chain wheels and the double toothed ring form a gear tooth meshing relationship.
Further, output shaft inner circle annular lateral wall on be equipped with two interior chain wheels, the number of teeth of chain wheel is the same in two, and every tooth all aligns, the number of teeth of interior chain wheel is poor with the preceding chain wheel on the preceding mount and the back chain wheel number of teeth on the after-fixing frame and is 3, the chain ring is installed between two interior chain wheels of three chain wheel and output shaft.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the rear mount of the present invention.
Fig. 3 is a schematic structural view of the rotating frame according to the present invention.
FIG. 4 is a schematic diagram of the structure of the center longitudinal section of the present invention.
FIG. 5 is a schematic diagram of the central transverse cross-section of the present invention.
Reference numerals: 1 front fixed frame, 1.1 front chain wheel, 2 input shaft, 3 output shaft, 3.1 inner chain wheel, 4 chain rings, 5.1 toothed chain wheel, 5.2 toothed chain wheel, 5.3 toothed chain wheel, 6 rotating frame, 6.1 toothed chain wheel frame, 6.2 chain supporting plate, 7 double gear rings, 8.1 turntable bearing, 8.2 turntable bearing, 9.1 pinion, 9.2 pinion, 9.3 pinion, 10 rear fixed frame, 10.1 welding shaft, 10.2 pinion mounting seat, 10.3 hollow window and 10.4 rear chain wheel.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, a harmonic reducer includes a front fixed mount 1, an input shaft 2, an output shaft 3, a chain ring 4, a toothed chain wheel (5.1, 5.2, 5.3), a rotating frame 6, a double toothed ring 7, a turntable bearing (8.1, 8.2), a pinion (9.1, 9.2, 9.3), and a rear fixed mount 10, and is characterized in that: the front fixing frame 1 is provided with a mounting hole at one side, fixedly mounted on power output equipment, and provided with a front chain wheel 1.1 at the other side, as shown in fig. 2, a circular through hole is arranged at the center of a rear fixing frame 10, a rear chain wheel 10.4 is arranged at one end of the rear fixing frame, three hollow windows 10.3 are uniformly arranged at the middle position of a welding shaft 10.1, a pair of coaxial pinion mounting seats 10.2 is arranged at the two outer ends of each hollow window 10.3, as shown in fig. 4, the front fixing frame 1 and the rear fixing frame 10 are connected into a whole through welding, a gear structure is arranged at the position, close to the middle position, of the input shaft 2, the input shaft 2 and the rear fixing frame 10 are coaxially mounted to form a revolute pair, and three pinions (9.1, 9.2, and 9.3) are respectively mounted in three pairs of pinion mounting seats 10.2 on the rear fixing frame 10, and form a revolute.
As shown in fig. 3, the rotating frame 6 is uniformly provided with three pairs of toothed chain wheel frames 6.1 and three chain supporting plates 6.2 in the circumferential direction, the chain supporting plates 6.2 support and tension the chain ring 4, the rotating frame 6 and the rear fixing frame 10 are coaxially mounted to form a revolute pair, the inner side of the double-toothed ring 7 is provided with an inner gear ring, the middle of the outer side of the double-toothed ring 7 is provided with an annular groove, gear teeth are arranged on two sides of the groove, two turntable bearings (8.1 and 8.2) are mounted between the double-toothed ring 7 and the rotating frame 6 to form the revolute pair, and the inner gear ring of the double-toothed ring 7 and three small gears (9.1, 9.2 and 9.3) form a.
The middle part of the toothed chain wheel (5.1, 5.2, 5.3) is of a chain wheel structure, gear structures are arranged on two sides of the chain wheel structure, three toothed chain wheels (5.1, 5.2, 5.3) are respectively arranged at the top end of a toothed chain wheel frame 6.1 arranged on the rotating frame 6 and respectively form a revolute pair with the rotating frame 6, and three toothed chain wheels (5.1, 5.2, 5.3) are respectively in gear tooth meshing relation with the double toothed ring 7.
As shown in fig. 4 and 5, the annular side wall of the inner ring of the output shaft 2 is provided with two inner crankset 3.1, the teeth of the two inner cranksets 3.1 are the same, each tooth is aligned, the difference between the teeth of the inner crankset 3.1 and the teeth of the front crankset 1.1 on the front fixed frame 1 and the teeth of the rear crankset 10.4 on the rear fixed frame is 3, and the chain ring 4 is installed between the three toothed chain wheels (5.1, 5.2, 5.3) and the two inner cranksets 3.1 of the output shaft 2.
The embodiment of the invention comprises the following steps:
an input shaft 2, three pinions (9.1, 9.2, 9.3) and a double-gear ring 7 form a fixed gear train, the input shaft 2 rotates, the double-gear ring 7 is driven to rotate by the pinions (9.1, 9.2, 9.3), and the transmission ratio of the input shaft 2 to the double-gear ring 7 is i1The double-toothed ring 7 drives three toothed chain wheels (5.1, 5.2 and 5.3) to revolve around the axis of the rotating frame 6, and the three toothed chain wheels (5.1, 5.2 and 5.3) are used as a wave generator in the harmonic reducer and are connected with the chain ring 4, the output shaft 3, the toothed discs (1.1, 1, 5, 3) on the front fixing frame and the rear fixing frame,10.4) form a harmonic speed reducer, and the transmission ratio of the double-tooth ring 7 and the output shaft 3 is i2The transmission ratio of the input shaft 2 and the output shaft 3 is i ═ i1×i2。
Claims (1)
1. The utility model provides a harmonic speed reducer ware, includes preceding mount (1), input shaft (2), output shaft (3), chain ring (4), toothed chain wheel (5.1, 5.2, 5.3), swivel mount (6), double ring gear (7), revolving stage bearing (8.1, 8.2), pinion (9.1, 9.2, 9.3), after-fixing frame (10), its characterized in that: one side of the front fixing frame (1) is provided with a mounting hole which is fixedly arranged on the power output equipment, the other side is provided with a front chain wheel (1.1), the center of the rear fixing frame (10) is provided with a circular through hole, one end of the device is provided with a rear chain wheel (10.4), the middle position of a welding shaft (10.1) is provided with three hollow windows (10.3), two ends of the outer side of each hollow window (10.3) are provided with a pair of coaxial pinion mounting seats (10.2), a front fixing frame (1) and a rear fixing frame (10) are connected into a whole by welding, a gear structure is arranged at the position, close to the middle position, of an input shaft (2), the input shaft (2) and the rear fixing frame (10) are coaxially mounted to form a revolute pair, three pinions (9.1, 9.2 and 9.3) are respectively mounted in the three pairs of pinion mounting seats (10.2) on the rear fixing frame (10) and form a revolute pair with the rear fixing frame (10), and all form a gear tooth meshing relationship with a gear structure (2.1) on the input shaft (2);
three pairs of toothed chain wheel racks (6.1) and three chain supporting plates (6.2) are uniformly distributed on the rotating frame (6) in the circumferential direction, the rotating frame (6) and the rear fixing frame (10) are coaxially mounted to form a revolute pair, an inner gear ring is arranged on the inner side of the double gear ring (7), an annular groove is formed in the middle of the outer side of the double gear ring, gear teeth are arranged on two sides of the groove, two turntable bearings (8.1 and 8.2) are mounted between the double gear ring (7) and the rotating frame (6) to form the revolute pair, and the inner gear ring of the double gear ring (7) and three small gears (9.1, 9.2 and 9.3) form a gear;
the middle parts of the toothed chain wheels (5.1, 5.2 and 5.3) are in a chain wheel structure, gear structures are arranged on two sides of the chain wheel structure, the three toothed chain wheels (5.1, 5.2 and 5.3) are respectively arranged at the top end of a toothed chain wheel frame (6.1) arranged on the rotating frame (6) and form a revolute pair with the rotating frame (6), and the three toothed chain wheels (5.1, 5.2 and 5.3) form a gear tooth meshing relationship with the double gear ring (7);
two inner chain wheels (3.1) are arranged on the annular side wall of the inner ring of the output shaft (3), and a chain ring (4) is arranged between the three toothed chain wheels (5.1, 5.2 and 5.3) and the two inner chain wheels (3.1) of the output shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065903.6A CN108561528B (en) | 2018-01-24 | 2018-01-24 | Harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065903.6A CN108561528B (en) | 2018-01-24 | 2018-01-24 | Harmonic speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561528A CN108561528A (en) | 2018-09-21 |
| CN108561528B true CN108561528B (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810065903.6A Active CN108561528B (en) | 2018-01-24 | 2018-01-24 | Harmonic speed reducer |
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| Country | Link |
|---|---|
| CN (1) | CN108561528B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944444A (en) * | 1959-09-22 | 1960-07-12 | Curtiss Wright Corp | Rotary speed reducer |
| JPS5739961Y2 (en) * | 1978-01-27 | 1982-09-02 | ||
| CN1554878A (en) * | 2003-12-29 | 2004-12-15 | 石永刚 | Harmonic speed reducer of cycloid roller chain |
| CN102400730A (en) * | 2011-11-28 | 2012-04-04 | 时利 | Valve timing phase control device |
| CN102753858A (en) * | 2010-02-12 | 2012-10-24 | 蒂姆肯公司 | Epicyclical gear transmission with improved load carrying capability |
| CN204140807U (en) * | 2014-03-31 | 2015-02-04 | 张小龙 | A kind of chain coupling retarder |
| CN107327544A (en) * | 2017-08-31 | 2017-11-07 | 安徽理工大学 | It is a kind of to move back and forth the nested type planetary reduction gear for being converted to one-way movement |
-
2018
- 2018-01-24 CN CN201810065903.6A patent/CN108561528B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944444A (en) * | 1959-09-22 | 1960-07-12 | Curtiss Wright Corp | Rotary speed reducer |
| JPS5739961Y2 (en) * | 1978-01-27 | 1982-09-02 | ||
| CN1554878A (en) * | 2003-12-29 | 2004-12-15 | 石永刚 | Harmonic speed reducer of cycloid roller chain |
| CN102753858A (en) * | 2010-02-12 | 2012-10-24 | 蒂姆肯公司 | Epicyclical gear transmission with improved load carrying capability |
| CN102400730A (en) * | 2011-11-28 | 2012-04-04 | 时利 | Valve timing phase control device |
| CN204140807U (en) * | 2014-03-31 | 2015-02-04 | 张小龙 | A kind of chain coupling retarder |
| CN107327544A (en) * | 2017-08-31 | 2017-11-07 | 安徽理工大学 | It is a kind of to move back and forth the nested type planetary reduction gear for being converted to one-way movement |
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| Publication number | Publication date |
|---|---|
| CN108561528A (en) | 2018-09-21 |
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Effective date of registration: 20200927 Address after: Room a306, building 7, Shengli College Students Pioneer Park, 217 Xisan Road, Dongying District, Dongying City, Shandong Province Applicant after: DONGGUAN KAIJIE PETROLEUM EQUIPMENT Co.,Ltd. Address before: 300393, room 1, unit 10, 503 building, Beizhen water garden, Xiqing District, Tianjin Applicant before: Lian Xuefang |
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