CN102192272A - Balance outer ring-type reducer - Google Patents
Balance outer ring-type reducer Download PDFInfo
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- CN102192272A CN102192272A CN2010101186368A CN201010118636A CN102192272A CN 102192272 A CN102192272 A CN 102192272A CN 2010101186368 A CN2010101186368 A CN 2010101186368A CN 201010118636 A CN201010118636 A CN 201010118636A CN 102192272 A CN102192272 A CN 102192272A
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Abstract
The invention discloses a balance outer ring-type reducer, comprising an input shaft, a left box lid, a box body, a right box lid, an output gear shaft, two or three inner teeth ring plates, three eccentric crank shafts, etc. The three eccentric crank shafts are parallel with one another, and show an equilateral triangle distribution; a less gear difference transmissions is realized in a meshing process of the inner teeth of the gear ring plates and the outer teeth of the output gear shaft; when there are existed two ring plates, the ring plates have the same thickness, and the phase difference between the ring plates is always 180 degrees; when there are existed three ring plates, the mass of the side gear ring plates are half of that of the middle gear ring plate, and the phase difference between the two side ring plates and the middle ring plate is always 180 degrees; by bearings, the left box lid and the box body support the input shaft, the left box lid and the right box lid support one of the eccentric crank shafts, and the box body and the right box lid support the output gear shaft and the other two eccentric crank shafts. The balance outer ring-type reducer is high in reliability, large in transmission ratio, steady in motion, strong in carrying capacity and diversiform in assembly form, and is especially suitable for using under the work conditions of needing high-power and large torque.
Description
Technical field
The present invention relates to a kind of mechanical transmissioning technology field, particularly retarder technical field.
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, the efficient height, 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, in use the three-ring type retarder also still has some shortcomings: be that mainly identical shaped irregular three internal tooth ring plates are 120 ° of phase differences side by side, internal tooth ring plate is equivalent to the connecting rod of double crank mechanism, because the even centrifugal force of out-of-shape and mean forced is bigger, though centrifugal force can be offset, but the additional moment that is produced by ring flat-plate centrifugal force is unbalanced, can cause the internal tooth ring plate stand under load irregular during work, surpassing under the situation of the ring flat-plate rotating speed upper limit, vibration, the noise height, volume is bigger simultaneously, and the speed ratio of single reduction gear unit can only be in 100, can not realize the usage requirement that input output are coaxial, therefore application is restricted.
Summary of the invention
Based on the deficiency of existing three-ring speed reducer, the invention provides that a kind of reliability height, velocity ratio are big, motion steadily, balance external ring-type gear reducer that bearing capacity is strong.
The invention provides following technological scheme: a kind of balance external ring-type gear reducer, include input shaft, driving gear, driven gear, left side case lid, casing, right case lid, internal tooth ring plate, three parts such as eccentric crankshaft, be parallel to each other between three eccentric crankshafts, and be the equilateral triangle setting, eccentric crankshaft is equipped with driven gear on one of them, described three eccentric crankshafts support and drive two or three internal tooth ring plates respectively, the inner circular tooth number of teething-ring plate is identical and realize few tooth difference transmission with external tooth engagement on the output shaft, left and right sides case lid is supporting the eccentric crankshaft of With a driven gear, right case lid and the gusset supporting of casing middle part be two eccentric crankshafts in addition, have driving gear on the input shaft, input shaft and output shaft parallel axes, coaxial or vertical.Ring flat-plate of the present invention has two kinds of forms: when ring flat-plate is two, there are three to be the bearing hole that equilateral triangle distributes on each ring flat-plate, two ring flat-plates identical in quality, the internal tooth of two teething-ring plates with the engagement process of output shaft external tooth in, phase difference is 180 ° all the time, because ring flat-plate profile 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 than the balance transmission; When and three bearing holes regular owing to the ring flat-plate profile are equilateral triangle, when ring flat-plate is three, there are three to be the bearing hole that equilateral triangle distributes on the ring flat-plate, stressed even, centrifugal force reduces and offsets, simultaneously, because the quality of two side teething-ring plates is set to 1/2nd of center tooth ring flat-plate quality respectively, the internal tooth of two side teething-ring plates and center tooth ring flat-plate with the engagement process of output shaft external tooth in, phase difference is 180 ° all the time, the additional moment opposite sign but equal magnitude that centrifugal force produces, thus can realize the complete equilibrium transmission.
The present invention has following beneficial effect:
1, the present invention is the two-stage transmission, driven gear on the driving gear on the input shaft and first eccentric shaft has constituted first order transmission, the second level by first initiatively two driven eccentric shafts of eccentric shaft and other simultaneously three ring flat-plates of rotating band internal tooths make to lack the tooth difference with the external tooth on the output shaft and mesh, can realize that through behind the two stage speed change 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, be the equilateral triangle layout because of ring flat-plate profile rule and three eccentric shafts, the stressed centrifugal force that evenly can reduce in traditional three-ring speed reducer motion, and because of between ring flat-plate in dynamic engagement phase difference be 180 °, and then offset the additional moment that produces by ring flat-plate centrifugal force, thereby realized the balance of power and moment.
3, because the driving gear of input shaft is arranged between left case lid and casing, the engagement of various ways can be constituted, the assembling form of multiple input output can be formed with the driven tooth on one of eccentric shaft.
4, owing to the existence of first order gear, can improve the internal lubrication situation of retarder, improve the working life of bearing.
5, because first order transmission input shaft can arrange arbitrarily that and three eccentric shafts can extend arbitrarily to ring flat-plate garden circumferential edges, so formation large through-hole output shaft.
Description of drawings: Fig. 1 is the present invention's structural representation when three ring flat-plate forms; Fig. 2 is along the sectional view of A-A line among Fig. 1; Fig. 3 is the present invention's structural representation when two ring flat-plate forms; The assembling form that Fig. 4 parallels to the axis in the eccentric shaft outside for input shaft; Fig. 5 is the assembling form of input shaft at eccentric shaft outside vertical axis; Fig. 6 is various input and output shaft assembling forms.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
When being three, by an input shaft 1 referring to Fig. 1, Fig. 2 ring flat-plate of the present invention; A driving gear 2; A driven gear 3; A left cover 4; 5: one casings 6 of a left case lid; Two driven eccentric shafts 7; A side ring plate 8; Ring flat-plate 9 in the middle of one; A both sides ring flat-plate 10; A right case lid 11; An output gear shaft 12; A right cover plate 13; Active eccentric shaft 14 compositions such as grade of a band driven tooth.
Wherein be parallel to each other between three eccentric crankshafts, be the equilateral triangle setting.Three eccentric crankshafts supportings also drives two side teething- ring plates 8,10 and center tooth ring flat-plate 9, and the number of teeth of both sides teething- ring plate 8,10 and center tooth ring flat-plate 9 is identical, and two side teething- ring plates 8,10 and center tooth ring flat-plate 10 are realized few tooth difference transmission with output gear shaft 12 engagements.Two side teething- ring plates 8,10 and center tooth ring flat-plate 9 with the dynamic engagement of output gear shaft in phase difference be 180 all the time., in order to keep meshing the equilibrium of moment, the quality settings of both sides teething- ring plate 8,10 is 1/2nd of center tooth ring flat-plate 9 quality.
Driving gear 2 on the input shaft 1 and 3 engagements of the driven gear on the eccentric shaft 14, realize the one-level transmission, eccentric shaft 14 imports motion into thus and drives 9 motions of 8,10 and center tooth ring flat-plates of two side teething-ring plates with other two eccentric crankshafts 7, internal tooth on side teething- ring plate 8,10 and the center tooth ring flat-plate 9 is meshed with external tooth on the output gear shaft 12, has realized the few tooth difference transmission in the second level.
Referring to Fig. 3, when the present invention is two, by an input shaft 1; A driving gear 2; A driven gear 3; A left cover 4; 5: one casings 6 of a left case lid; Two driven eccentric shafts 7; A ring flat-plate 8; A ring flat-plate 9; A right case lid 10; A right cover plate 11; An output gear shaft 12; Active eccentric shaft 13 compositions such as grade of a band driven tooth.Wherein ring flat-plate 8 and ring flat-plate 9 uniform thickness, because of three holes on the ring flat-plate are the equilateral triangle layout, stressed even centrifugal force is little, more traditional for this reason three-ring speed reducer balance.
Fig. 4, Fig. 5, Fig. 6 are the assembling form of retarder of the present invention, because the synthetic multiple assembling form of the set of layouts of input and output shaft.
Referring to Fig. 4,, import gear shaft 1 outside eccentric shaft by one for the assembling form that input shaft parallels to the axis; A driven gear 2; A left cover 3; An output gear shaft 4; 5: one casings 6 of a left case lid; A side ring plate 7; Ring flat-plate 8 in the middle of one; A side ring plate 9; A right case lid 10; A right cover plate 11; Two driven eccentric shafts 12; Active eccentric shaft 13 compositions such as grade of a band driven tooth.Input shaft 1 is installed on the left case lid 5 by bearing one end, the other end is installed on the gusset at casing 6 middle parts, output gear shaft 4 is installed on the right case lid 10 by bearing one end, the other end is installed on the gusset at casing 6 middle parts, 1 of left cover 3 and input shaft form axle sealing structure thereby 4 of right cover plate 10 and output gear shafts all are equipped with seal ring.
Referring to Fig. 5, be the assembling form of input shaft, by an input gear shaft 1 at eccentric shaft outside vertical axis; Lower end cap 2; Small box 3; 4 one driven gears 5 of active eccentric shaft of a band driven tooth; A left cover 6; A left case lid 7; Two driven eccentric shafts 8; A casing 9; A side ring plate 10; Ring flat-plate 11 in the middle of one; A side ring plate 12; A right case lid 13; A right cover plate 14; Output hollow gear shaft 15 compositions such as grade.Input shaft 1 by Bearing Installation on small box 3, small box connects with left case lid, output gear shaft 4 is installed on the right case lid 13 by bearing one end, the other end is installed on the gusset at casing 9 middle parts, 1 of lower cover plate 2 and input shaft form axle sealing structure thereby 15 of right cover plate 14 and output gear shafts all are equipped with seal ring.
Referring to Fig. 6, be the various assembling form figure of input and output shaft combination, wherein demonstration of the type is: the output number of axle-number of input shaft-dual-motor input number, as: 211 promptly is the output number of axle 2, number of input shaft 1, input shaft dual-motor several 1.
Claims (1)
1. a balance external ring-type gear reducer includes the input gear shaft; Driving gear; Driven gear; Left cover; Left side case lid; Casing; The active eccentric shaft; Driven eccentric shaft; Internal tooth ring plate; Output gear shaft; Right case lid; Left covers etc. is characterized in that:
1, is parallel to each other between described three eccentric crankshafts, and be the equilateral triangle setting, described three eccentric crankshafts support and drive two or three ring flat-plates that the interior number of teeth is identical respectively: when being two ring flat-plate forms, the ring flat-plate uniform thickness, two internal tooth ring plates with the engagement process of output external tooth axle in, phase difference is 180 ° all the time; When being three ring flat-plate forms, ring flat-plate is two side teething-ring plates and a center tooth ring flat-plate, the internal tooth of two side teething-ring plates and center tooth ring flat-plate with the engagement process of output gear shaft in, phase difference is 180 ° all the time, and the quality of two side teething-ring plates is set to 1/2nd of center tooth ring flat-plate quality respectively.Left and right sides case lid is supporting the active eccentric crankshaft of With a driven gear, right case lid and casing middle part gusset supporting output shaft and other two driven eccentric crankshafts, have driving gear on the input shaft by the gusset supporting of left case lid and casing middle part, described input shaft and output shaft parallel axes, coaxial or intersect vertically.
2, according to right 1 described balance external ring-type gear reducer, have driving gear on the input shaft and be positioned in the middle of the gusset supporting of left case lid and casing middle part, be meshed with driven tooth on the eccentric shaft, realize first order transmission.Three eccentric shafts drive internal tooth ring plate and output gear shaft is done few tooth difference engagement formation second level transmission.
3, according to right 1 described balance external ring-type gear reducer, three parallel eccentric crankshafts are each other arranged, and be the equilateral triangle setting, described three eccentric crankshafts support and drive the profile rule respectively and are the ring flat-plate group that the equilateral triangle hole is arranged, the ring flat-plate group is two or three, when being two, the ring flat-plate uniform thickness; When being three, the ring flat-plate group is that two thin ring flat-plates thick and that quality reduces by half are formed.
4, according to right 1 described balance external ring-type gear reducer, according to input shaft axis and output shaft parallel axes, coaxial or intersect vertically, retarder has multiple assembling form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101186368A CN102192272A (en) | 2010-03-05 | 2010-03-05 | Balance outer ring-type reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101186368A CN102192272A (en) | 2010-03-05 | 2010-03-05 | Balance outer ring-type reducer |
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| Publication Number | Publication Date |
|---|---|
| CN102192272A true CN102192272A (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101186368A Pending CN102192272A (en) | 2010-03-05 | 2010-03-05 | Balance outer ring-type reducer |
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| CN (1) | CN102192272A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352916A (en) * | 2011-10-26 | 2012-02-15 | 张宽友 | External swing speed increasing/reducing device with less teeth difference and more crankshafts |
| CN103307227A (en) * | 2013-05-20 | 2013-09-18 | 中国矿业大学 | Low-speed heavy-load three-ring speed reducer capable of adjusting speed |
| CN108620176A (en) * | 2018-04-15 | 2018-10-09 | 珠海市万顺睿通科技有限公司 | A kind of milling device |
-
2010
- 2010-03-05 CN CN2010101186368A patent/CN102192272A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352916A (en) * | 2011-10-26 | 2012-02-15 | 张宽友 | External swing speed increasing/reducing device with less teeth difference and more crankshafts |
| CN102352916B (en) * | 2011-10-26 | 2013-08-28 | 张宽友 | External swing speed increasing/reducing device with less teeth difference and more crankshafts |
| CN103307227A (en) * | 2013-05-20 | 2013-09-18 | 中国矿业大学 | Low-speed heavy-load three-ring speed reducer capable of adjusting speed |
| CN108620176A (en) * | 2018-04-15 | 2018-10-09 | 珠海市万顺睿通科技有限公司 | A kind of milling device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |