CN101982674A - Annular speed reducer - Google Patents
Annular speed reducer Download PDFInfo
- Publication number
- CN101982674A CN101982674A CN2010105533540A CN201010553354A CN101982674A CN 101982674 A CN101982674 A CN 101982674A CN 2010105533540 A CN2010105533540 A CN 2010105533540A CN 201010553354 A CN201010553354 A CN 201010553354A CN 101982674 A CN101982674 A CN 101982674A
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- plate
- ring flat
- eccentric shaft
- shaft
- eccentric
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses an annular speed reducer which comprises a speed reducer box and an input shaft, wherein, the input shaft is equipped with driving gears; the speed reducer box is internally equipped with three eccentric shafts with parallel axes, and the three eccentric shafts are arranged in an equilateral triangle shape; driven gears are arranged on one or two or three eccentric shafts and meshed with the driving gears for synchronous rotation; a first annular plate and a second annular plate are equipped with three bearing holes which are distributed in an equilateral triangle shape and equipped with bearings, the three eccentric shafts pass through the bearing holes respectively, and the first annular plate and the second annular plate are supported on the three eccentric shafts via the bearings; and internal teeth are arranged at central positions of the first annular plate and the second annular plate and meshed with external teeth on an output shaft so as to drive the output shaft to rotate. The two annular plates have the same shape and the same mass and the phase difference of the annular plates in dynamic engagement is 180omicron, thereby counteracting the centrifugal force of the annular plates and basically counteracting the additional moment generated by the centrifugal force so as to realize balance of force and moment. The speed reducer has the advantages of greater transmission and wide use.
Description
Technical field
The present invention relates to a kind of retarder of machine power transmission field, especially a kind of ring-type gear reducer.
Background technique
In the modern industry field, the retarder equipment of few tooth difference transmission has obtained using widely, wherein three-ring speed reducer is exactly a typical example, because it is strong that it has bearing capacity, anti-overload ability is big, continuous production reliability height, velocity ratio is big, long service life, easy to maintenance, characteristics such as cost performance height, be widely used in metallurgy, the mine, the lifting transportation, building, petrochemical industry, industries such as textile printing and dyeing, series product have been formed, and in numerous areas, substituted hard flank of tooth planetary reducer, the cycloidal-pin wheel retarder, cylinder gear speed reducer and worm type of reduction gearing.
But, the three-ring speed reducer of prior art, in use also still have following some shortcomings: be that mainly identical shaped irregular three ring flat-plates are 12 Oo phase differences side by side, ring flat-plate is equivalent to the connecting rod of double crank mechanism, because out-of-shape and discontinuity centrifugal force are bigger, though centrifugal force can be offset, but by the additional moment that ring flat-plate centrifugal force produces is to be difficult to offset, thereby cause the irregular motion of ring flat-plate stand under load uneven during work, surpassing under the upper limit case of ring flat-plate input speed vibration, noise height; In addition, the single reduction gear unit speed ratio is less, can only be in 100, and volume is bigger, and the usage requirement of various working such as can not realize that input shaft, output shaft are arranged in the same way or be arranged vertically, so its application area is restricted; Simultaneously can not satisfy the gearing down needs in some special field.
Summary of the invention
The present invention is based on the above-mentioned deficiency of existing three-ring speed reducer, provide that a kind of reliability height, velocity ratio are big, motion steadily, ring-type gear reducer that bearing capacity is strong.
Technological scheme of the present invention is: a kind of ring-type gear reducer, comprise reduction case and input shaft, and driving gear is installed on input shaft; It is characterized in that: in reduction case, be provided with first eccentric shaft, second eccentric shaft, the 3rd eccentric shaft, the axis of described three eccentric shafts is parallel to each other, and is the equilateral triangle setting; On one or two or three eccentric shafts driven gear is installed, driven gear can mesh with driving gear, drives driven gear when driving gear rotates and rotates synchronously; On first ring flat-plate, second ring flat-plate, be provided with three and be the bearing hole that equilateral triangle distributes, in each bearing hole, be provided with bearing, first eccentric shaft, second eccentric shaft and the 3rd eccentric shaft pass bearing hole respectively, first ring flat-plate, second ring flat-plate are supported on first eccentric shaft, second eccentric shaft and the 3rd eccentric shaft by the bearing in the bearing hole; The central position of first ring flat-plate and second ring flat-plate is provided with internal tooth, the engagement of external tooth on this internal tooth and the output shaft, and when first ring flat-plate and second ring flat-plate drove lower swing at described three eccentric shafts, being meshed by described internal tooth, external tooth drove output shaft and rotates.
Further feature is: the profile of first ring flat-plate and second ring flat-plate is consistent, quality equates, the internal tooth of first ring flat-plate and second ring flat-plate with the engagement process of output shaft external tooth in, phase difference is 180o all the time.
Described reduction case is formed support input shaft, first eccentric shaft, second eccentric shaft, the 3rd eccentric shaft and output shaft by the left cover that is positioned at the left side, left case lid, the cylindrical shell in right case lid, right cover plate and neutral position that is positioned at the right.
The internal tooth on first ring flat-plate and second ring flat-plate and the profile of tooth of output shaft external tooth are involute or cycloid.
The present invention has following beneficial effect:
1, the present invention is the two-stage transmission, and velocity ratio is bigger, can realize that velocity ratio reaches more than 600, and can realize the reasonable distribution of first order high speed reduction of speed and the carrying of partial low speed.
2, to be the equilateral triangle layout stressed evenly because of ring flat-plate profile rule and three eccentric shafts, because the reduction of speed of the first order can reduce the input speed of eccentric shaft, thereby can reduce the centrifugal force in traditional three-ring speed reducer motion, and because of between ring flat-plate in dynamic engagement phase difference be 180o, offset by ring flat-plate centrifugal force, and the additional moment that can basic neutralisation produces, thereby realized the balance of power and moment.
3, owing to the existence of first order driving gear splash lubrication, can improve the internal lubrication situation of retarder, improve the working life of bearing.
Based on above advantage, the present invention also has higher input speed and lower noise and temperature rise except that the series of advantages with three-ring speed reducer, and cost easy to manufacture is lower simultaneously, and promotional value is widely arranged.
Description of drawings
Fig. 1 is when being equipped with driven gear on one to two eccentric shaft, structural representation of the present invention;
Fig. 2 is along the sectional view of A-A line among Fig. 1.
Among the figure: 1-reduction case, 2-input shaft, 3-driving gear, 4-left cover, 5-left case lid, 7-the first eccentric shaft, 8-the first ring flat-plate, 9-the second ring flat-plate, 10-right case lid, 11-right cover plate, 12-output shaft, 13-the second eccentric shaft, 14-the three eccentric shaft, 15-driven gear, 16-cylindrical shell.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Referring to Fig. 1, Fig. 2 structural representation of the present invention, ring-type gear reducer of the present invention comprises reduction case 1 and input shaft 2, and driving gear 3 is installed on input shaft 2, and input shaft 2 drives driving gear 3 and rotates synchronously; In reduction case 1, be provided with three eccentric shafts, promptly be parallel to each other between the axis of first eccentric shaft 7, second eccentric shaft 13, the 3rd eccentric shaft 14, three eccentric shafts, and be the equilateral triangle setting; On one or two or three eccentric shafts, driven gear 15 is installed, one or two or three driven gears 15 can mesh with driving gear 3, driving the driven gear of installing on one or two or three eccentric shafts 15 when driving gear 3 rotates rotates synchronously, driven gear 15 drives corresponding eccentric shaft again and rotates, input shaft 2, driving gear 3, three eccentric shafts and driven gear 15 form first order transmission, can obtain bigger velocity ratio.Shown in the figure, a driven gear 3 has been installed respectively on eccentric shaft 13,14, these two driven gears 15 mesh with driving gear 3 simultaneously, form first order transmission.On first ring flat-plate 8, second ring flat-plate 9, be provided with three and be the bearing hole that equilateral triangle distributes, in each bearing hole, be provided with bearing, first eccentric shaft 7, second eccentric shaft 13 and the 3rd eccentric shaft 14 pass bearing hole respectively, first ring flat-plate 8, second ring flat-plate 9 are supported on first eccentric shaft 7, second eccentric shaft 13 and the 3rd eccentric shaft 14 by the bearing in the bearing hole; Import two eccentric rotation axis of motion into by the first order, second eccentric shaft 13 and the 3rd eccentric shaft 14 are with first eccentric shaft, 7 eccentric rotary, first ring flat-plate 8 and second ring flat-plate 9 that can drive two uniform thickness are done garden translation (swing in the certain limit), the central position of first ring flat-plate 8 and second ring flat-plate 9 is provided with internal tooth, external tooth engagement on this internal tooth and the output shaft 12, carry out few tooth difference engagement driving, when first ring flat-plate 8 and second ring flat-plate 9 drive lower swing at described three eccentric shafts, pass through internal tooth, external tooth is meshed and drives output shaft 12 rotations, form second level transmission, power (moment of torsion) after slowing down by output shaft 12 outputs, is realized the effect of gearing down.
First ring flat-plate 8 and second ring flat-plate 9 identical in quality, the internal tooth of first ring flat-plate 8 and second ring flat-plate 9 with the engagement process of output shaft 12 external tooths in, phase difference is 180o all the time, because two ring flat-plate profiles rule and three bearing holes are equilateral triangle, can reduce centrifugal force and stressed even, can reduce because of centrifugal force produce additional moment, thereby realize the balance transmission.Because a pair of gear (driving gear 3 and driven gear 15) of first order transmission can flexible arrangement, so can make input shaft 2 parallel, coaxial or vertical with output shaft 12, forms multiple assembling form, adapts to the transmission needs of various unconventional positions.The profile of tooth of the internal tooth on first ring flat-plate 8 and second ring flat-plate 9 and the external tooth of output shaft 12 is involute or cycloid, can strengthen engagement driving effect, less vibration.
Claims (4)
1. a ring-type gear reducer comprises reduction case (1) and input shaft (2), and driving gear (3) is installed on input shaft (2); It is characterized in that: in reduction case (1), be provided with first eccentric shaft (7), second eccentric shaft (13), the 3rd eccentric shaft (14), the axis of described three eccentric shafts is parallel to each other, and is the equilateral triangle setting; On one or two or three eccentric shafts, driven gear (15) is installed, driven gear (15) can with driving gear (3) engagement, drive driven gear (15) when driving gear (3) rotates and rotate synchronously; On first ring flat-plate (8), second ring flat-plate (9), be provided with three and be the bearing hole that equilateral triangle distributes, in each bearing hole, be provided with bearing, first eccentric shaft (7), second eccentric shaft (13) and the 3rd eccentric shaft (14) pass bearing hole respectively, first ring flat-plate (8), second ring flat-plate (9) are supported on first eccentric shaft (7), second eccentric shaft (13) and the 3rd eccentric shaft (14) by the bearing in the bearing hole; The central position of first ring flat-plate (8) and second ring flat-plate (9) is provided with internal tooth, external tooth engagement on this internal tooth and the output shaft (12), when first ring flat-plate (8) and second ring flat-plate (9) drove lower swing at described three eccentric shafts, being meshed by described internal tooth, external tooth drove output shaft (12) and rotates.
2. ring-type gear reducer according to claim 1, it is characterized in that: first ring flat-plate (8) and second ring flat-plate (9) identical in quality, the internal tooth of first ring flat-plate (8) and second ring flat-plate (9) with the engagement process of output shaft (12) external tooth in, phase difference is 180o all the time.
3. ring-type gear reducer according to claim 1 and 2, it is characterized in that: described reduction case (1), connect to form by the left cover that is positioned at the left side (4), left case lid (5), the cylindrical shell (16) in right case lid (10), right cover plate (11) and neutral position that is positioned at the right, support input shaft (2), first eccentric shaft (7), second eccentric shaft (13), the 3rd eccentric shaft (14) and output shaft (12).
4. ring-type gear reducer according to claim 1 and 2 is characterized in that: the profile of tooth of internal tooth on first ring flat-plate (8) and second ring flat-plate (9) and output shaft (12) external tooth is involute or cycloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105533540A CN101982674A (en) | 2010-11-22 | 2010-11-22 | Annular speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105533540A CN101982674A (en) | 2010-11-22 | 2010-11-22 | Annular speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101982674A true CN101982674A (en) | 2011-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105533540A Pending CN101982674A (en) | 2010-11-22 | 2010-11-22 | Annular speed reducer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230517A (en) * | 2011-06-22 | 2011-11-02 | 重庆钢铁(集团)有限责任公司 | Speed reducer with small tooth number difference and structure thereof for electric flat carriage |
| CN102606684A (en) * | 2012-03-30 | 2012-07-25 | 张鑫珩 | Multi-loop concentric circumferential drive reducing mechanism |
| CN104455341A (en) * | 2014-12-03 | 2015-03-25 | 宁波东力机械制造有限公司 | Modular speed reducer capable of adjusting center heights of input shaft |
| CN105546072A (en) * | 2016-02-03 | 2016-05-04 | 湖南特传重工科技股份有限公司 | Annular speed reduction device with non-return function |
| CN107202099A (en) * | 2017-06-19 | 2017-09-26 | 恒丰泰精密机械股份有限公司 | A kind of coaxial two-direction exports positioning gear |
| CN113324015A (en) * | 2021-05-10 | 2021-08-31 | 江苏泰隆减速机股份有限公司 | Anti-seismic self-gap-eliminating three-ring speed reducer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180748A1 (en) * | 1984-10-08 | 1986-05-14 | François Durand | Planetary gearbox |
| DE102004048196A1 (en) * | 2004-09-30 | 2006-04-06 | Robert Bosch Gmbh | Eccentric gear, in particular with cycloid gearing |
| CN200958562Y (en) * | 2006-07-19 | 2007-10-10 | 重庆大学 | Multiple cranke and balance planetary speed reducer |
| CN201177029Y (en) * | 2008-04-10 | 2009-01-07 | 喻幸福 | Planet type few teeth difference decelerator |
| CN201475265U (en) * | 2009-07-31 | 2010-05-19 | 武昌船舶重工有限责任公司 | Three-ring speed reducer |
| CN201851599U (en) * | 2010-11-22 | 2011-06-01 | 重庆钢铁(集团)有限责任公司 | Two-stage ring gear reducer |
-
2010
- 2010-11-22 CN CN2010105533540A patent/CN101982674A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180748A1 (en) * | 1984-10-08 | 1986-05-14 | François Durand | Planetary gearbox |
| DE102004048196A1 (en) * | 2004-09-30 | 2006-04-06 | Robert Bosch Gmbh | Eccentric gear, in particular with cycloid gearing |
| CN200958562Y (en) * | 2006-07-19 | 2007-10-10 | 重庆大学 | Multiple cranke and balance planetary speed reducer |
| CN201177029Y (en) * | 2008-04-10 | 2009-01-07 | 喻幸福 | Planet type few teeth difference decelerator |
| CN201475265U (en) * | 2009-07-31 | 2010-05-19 | 武昌船舶重工有限责任公司 | Three-ring speed reducer |
| CN201851599U (en) * | 2010-11-22 | 2011-06-01 | 重庆钢铁(集团)有限责任公司 | Two-stage ring gear reducer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230517A (en) * | 2011-06-22 | 2011-11-02 | 重庆钢铁(集团)有限责任公司 | Speed reducer with small tooth number difference and structure thereof for electric flat carriage |
| CN102606684A (en) * | 2012-03-30 | 2012-07-25 | 张鑫珩 | Multi-loop concentric circumferential drive reducing mechanism |
| CN102606684B (en) * | 2012-03-30 | 2015-04-29 | 中冶华天工程技术有限公司 | Multi-loop concentric circumferential drive reducing mechanism |
| CN104455341A (en) * | 2014-12-03 | 2015-03-25 | 宁波东力机械制造有限公司 | Modular speed reducer capable of adjusting center heights of input shaft |
| CN105546072A (en) * | 2016-02-03 | 2016-05-04 | 湖南特传重工科技股份有限公司 | Annular speed reduction device with non-return function |
| CN107202099A (en) * | 2017-06-19 | 2017-09-26 | 恒丰泰精密机械股份有限公司 | A kind of coaxial two-direction exports positioning gear |
| CN107202099B (en) * | 2017-06-19 | 2024-03-26 | 恒丰泰精密机械股份有限公司 | Coaxial bidirectional output positioning transmission device |
| CN113324015A (en) * | 2021-05-10 | 2021-08-31 | 江苏泰隆减速机股份有限公司 | Anti-seismic self-gap-eliminating three-ring speed reducer |
| CN113324015B (en) * | 2021-05-10 | 2024-06-07 | 江苏泰隆减速机股份有限公司 | Shock-resistant self-clearance-eliminating three-ring speed reducer |
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Application publication date: 20110302 |