CN100427801C - Star wheel reducer - Google Patents

Star wheel reducer Download PDF

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Publication number
CN100427801C
CN100427801C CNB2007100571188A CN200710057118A CN100427801C CN 100427801 C CN100427801 C CN 100427801C CN B2007100571188 A CNB2007100571188 A CN B2007100571188A CN 200710057118 A CN200710057118 A CN 200710057118A CN 100427801 C CN100427801 C CN 100427801C
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CN
China
Prior art keywords
star wheel
bearing
output shaft
input shaft
gears
Prior art date
Application number
CNB2007100571188A
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Chinese (zh)
Other versions
CN101038017A (en
Inventor
孙一义
徐宏
周作国
Original Assignee
天津减速机股份有限公司
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Application filed by 天津减速机股份有限公司 filed Critical 天津减速机股份有限公司
Priority to CNB2007100571188A priority Critical patent/CN100427801C/en
Publication of CN101038017A publication Critical patent/CN101038017A/en
Application granted granted Critical
Publication of CN100427801C publication Critical patent/CN100427801C/en

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Abstract

The invention relates to a star-wheel speed reducer, which belongs to speed reducer technology field, comprising an input shaft, output shaft, gears, geared ring and a through cover, characterized in that the reducer casing is provided with the input shaft, output shaft, gears, geared ring. The input shaft is equipped with an eccentric sleeve, which is provided with double axial bearings, the eccentric sleeve is provided with two eccentric bearings equipped gears, the two gears are externally connected with tooth rings, the two gears are fixed on an even-carrying plate and the output shaft, the even-carrying plate is provided with a bearing, and a sealing ring is provided between the output shaft excircle and the through cover. The invention is provided with advantages of simple structure, smaller volume, high bearing capacity, low production cost, high transmission accuracy, convenient assemblage and combined application with other types of speed reducers, which can be widely used in speed reducer industry.

Description

Star wheel reducer
Technical field
The invention belongs to the speed reducer technical field, particularly relate to a kind of coaxial output type star wheel reducer.
Background technique
At present, the product of speed reducer market circulation is a coaxial-type, as cycloid speed reducer mostly; Parallel-axis type as the hard-tooth surface speed reducer of ZY series; Perpendicular axis type as the speed reducer of worm-gear speed reducer and some other pattern.
Along with the development of industrial technology, Design of Mechanical Structure is compact, succinct, practical further, and is also more and more higher to the requirement of speed reducer, as high pulling torque, big speed ratio and high transmission accuracy etc.And be the smaller the better to the requirement of volume simultaneously.
ZY series hard-tooth surface speed reducer meet the requirement of high pulling torque, but its velocity ratio is up to 100, and is three grades of transmissions.Volume is relatively large, and input power requires bigger.
Cycloid speed reducer, transmission accuracy are higher relatively.But when velocity ratio is big, need to adopt twin-stage, three grades of driving types, volume is relatively large.Owing to the restriction of this body structure, output torque is not very high again.
Summary of the invention
The technical problem of the present invention for existing in the solution known technology, and a kind of star wheel reducer is provided.
The purpose of this invention is to provide a kind of simple in structure, volume is less relatively, bearing capacity is higher, manufacture cost is lower coaxial output type star wheel reducer.
The technology of the present invention characteristics are:
1, adopts fewer differential teeth planetary formula transmission, two plate gears and a gear ring engagement driving.Velocity ratio can reach more than 100.In response to ZY, the big problem of cycloid speed reducer volume, reduce volume 35-60%.
2, adopt freely-supported beam type support arrangement and install load-balancing device additional.The problem that the output torque that causes because of the cantilever layout in response to cycloid speed reducer is low improves bearing capacity more than 2 times.
3, a pair of ball bearing is adopted in output transmission, is symmetrically distributed on output shaft and the equal load plate cylindrical, reduces speed reducer axial dimension 1/4th to 1/3rd even higher.
4, adopt O type circle to carry out radial seal, reduce speed reducer radial dimension 1/4th to 1/3rd, 10-20% economizes on the use of funds.
5, adopt the connection bearing pin to connect input, output.Strengthen speed reducer rigidity 30-50%; Improve one to two grade of transmission accuracy; Raise the efficiency about 10%.
The present invention takes following technological scheme:
Star wheel reducer, comprise input shaft, output shaft, gear, gear ring and Tong Gai, it is characterized in that: input shaft, output shaft, gear, gear ring are housed in the decelerator body, and input shaft is equipped with eccentric bushing, and input shaft has the dual-gripper bearing, eccentric bushing is equipped with two capacity eccentric bearings, two capacity eccentric bearings are equipped with gear respectively, and two gears connect gear ring outward, and two gears are fixed in equal load plate and axle shaft by connecting bearing pin, all load plate is provided with bearing, between output shaft cylindrical and logical lid seal ring is housed.
The present invention can also adopt following technical measures:
Described star wheel reducer is characterized in: bearing housing and gear ring, logical lid and being in the same place by bolton up and down.
Described star wheel reducer is characterized in: two gears are provided with spacer ring.
Described star wheel reducer is characterized in: input shaft is shaft-mounted, motor straight connection type, cartridge type or connects tray type structure.
Described star wheel reducer is characterized in: on output shaft and the equal load plate cylindrical, be symmetrically distributed with ball bearing.
Described star wheel reducer is characterized in: seal ring is an O type circle between output shaft cylindrical and logical lid.
Described star wheel reducer is characterized in: input shaft is provided with keyway, and output shaft is provided with keyway.
Described star wheel reducer is characterized in: connect bearing pin and be provided with catch and pin.
Described star wheel reducer is characterized in: the decelerator body is provided with abat-vent, lubricating cup.
Advantage that the present invention has and good effect:
The present invention compares with ZY series hard-tooth surface speed reducer, and volume can reduce more than 60%; Compare with cycloid speed reducer, bearing capacity improves more than the twice, and volume reduces 30-50%.In addition, also have following characteristics: 1, driving gear pair adopts the nitriding treatment mode.Wear resistance improves more than 50%; Bearing capacity improves more than the twice; Driving torque improves more than the twice; Can increase the service life two to three times.2, a pair of gear is symmetrically distributed.Improved robust motion; Reduce noise more than 15 decibels.3, input, output terminal are reserved external seam conveniently to install and use.4, the logical cylindrical that covers in two ends is processed conveniently to install and use through finish turning.5, owing to adopt modes such as connecting bearing pin, improved the speed reducer impact resistance.6, this speed reducer single staged transmission ratio can reach more than 100, reduces speed reducer axial dimension 1/4th to 1/3rd even higher.7, the serial power of the popularization of this speed reducer can change in the 0.18-55KW scope.8, this speed reducer is on the basic structure basis, and by changing or increasing 2-3 part, accommodation be that pattern is assembled in motor direct connection, axle dress, insertion input output etc., and can be connected into twin-stage, three grades etc. and assemble pattern.9, but this speed reducer adapted connects standard, non-standard exterior components such as dish, coupling, also can be used in combination with the speed reducer of other type.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention;
Fig. 2 is the structural representation of looking up of Fig. 1.
Among the figure, 1-gear ring, 2-gear, the equal load plate of 3-, the logical lid of 4-, 5-input shaft, the 6-keyway, 7-oil sealing, 8-bearing, 9-back-up ring, 10-bolt, 11-bearing housing, the 12-bearing, 13-connects bearing pin, 14-screw, 15-spacer ring, the logical lid of 16-, 17-bearing, the 18-eccentric bushing, 19-bearing, 20-keyway, 21-output shaft, 22-bearing, the 23-back-up ring, 24-catch, 25-pin, 26-O type circle, 27-back-up ring, the 28-keyway, 29-gear, 30-bearing, 31-abat-vent, 32-lubricating cup.
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Consult accompanying drawing 1.
Star wheel reducer is equipped with input shaft, output shaft, gear, gear ring in its shell, input shaft is equipped with eccentric bushing 18, and input shaft 5 has dual-gripper bearing 8,19, and input shaft is provided with oil sealing 7, back-up ring 9, back-up ring 27 and back-up ring 23.Eccentric bushing is equipped with two capacity eccentric bearings 17,30, two capacity eccentric bearings 17,30 are equipped with gear 2,29 respectively, two gears 2,29 are provided with spacer ring 15, two gears, 2, the 29 outer gear rings 1 that connect, two gears 2,29 are fixed in equal load plate 3 and axle shaft 21 by connecting bearing pin 13, connect bearing pin and are provided with retaining catch 24 and 25.Output shaft 21 and all on load plate 3 cylindricals is symmetrically distributed with ball bearing, and output shaft 21 cylindricals are provided with ball bearing 22, and output shaft 21 Wai Pu covers 16 and are equipped with and seal O type circle 26 with logical, and the ball bearing 12 that is symmetrically distributed on equal load plate 3 cylindricals is loaded in the bearing housing 11.Bearing housing 11 and gear ring 1, logically up and down cover 4,16 and tighten together by bolt 10.Input shaft 5 is provided with keyway 6,28, and output shaft 21 is provided with keyway 20.Speed reducer is provided with abat-vent 31, lubricating cup 32 and screw 14, guarantees to annotate, drain the oil conveniently.
The working procedure of star wheel reducer:
External power plant drive input shaft 5 by key 6 and rotate, and input shaft 5 drives eccentric bushing 18 by key 28, and eccentric bushing 18 drives bearing 30,17, and bearing 30 driven gears 2, bearing 17 driven gears 29 are realized engagement driving with gear ring 1 (gear ring maintains static).Simultaneously, bearing pin 13 drives equal load plate 3 to gear 2 and output shaft 21 rotates by connecting again, and output shaft 21 passes motion to external movement means by key 20.
In addition, bearing 8,19 is two supportings of input shaft; Bearing 12,22 is respectively the supporting of equal load plate 3 and output shaft 21; Back-up ring 9 is between bearing 8 and bearing 30, and back-up ring 27 plays the axially locating effect respectively between bearing 19 and bearing 17.Oil sealing 7 is contained in input shaft 5 and logical the lid between 4, plays the input seal action.O type circle 26 is contained in output shaft 21 and logical the lid between 16, plays the output seal action.The bearing housing 11 at two ends (two measure-alike) be contained in respectively logical cover 4 and gear ring 1 between and lead to cover 16 and gear ring 1 between, play the axially locating effect.It is fixing that catch 24, pin 25 will connect bearing pin 13.10 interconnect functions of screw.Abat-vent 31 plays the ventilation effect.Lubricating cup 32 is used for the filling grease.Screw 14 works the effect of draining the oil.
The present embodiment star wheel reducer have following characteristics:
1, input shaft 5 can adopt shaft-mounted, motor straight connection type, cartridge type and connect disc type, and other parts are constant, and mounting or dismounting are convenient.
2, input shaft 5 is realized the dual-gripper of freely-supported beam type by bearing 8 and bearing 19 bearings.Bearing capacity improves more than the twice; Reduce noise more than 15 decibels and improve smoothness of operation.
3, connect with the 4-8 root that bearing pin 13 will be imported, output links into an integrated entity.Strengthen speed reducer rigidity 30-50%; Driving torque improves more than the twice.
4, adopt equal load plate 3 to improve the smoothness of operation of speed reducer.
5, adopt a pair of ball bearing 12 as outer support, symmetric arrangement.Reduce speed reducer axial dimension 1/4th to 1/3rd even higher; Improve the smoothness of operation of speed reducer.
6, the output sealing adopts O type circle 26 to substitute the FB oil sealing.Reduce speed reducer radial dimension 1/4th to 1/3rd.
7, adopt bearing housing 11, catch 24, cotter pin 25, make assembling more convenient.
8, the logical inside and outside seam of 4 reservations, the cylindrical fitting surface of covering of input end; Logical 16 reservation outer stoppers, the cylindrical fitting surface of covering of output terminal.Make things convenient for user installation to use.
9, abat-vent 31, lubricating cup 32 and screw 14 are installed, are guaranteed to annotate, drain the oil conveniently.
Present embodiment combines the advantage of traditional speed reducer, advantages such as, gerotor type compact structure big as ZY type driving torque; Overcome that ZY type volume is bigger than normal, shortcoming such as gerotor type driving torque and velocity ratio are limited, can be widely used in the speed reducer industry.

Claims (9)

1. star wheel reducer, comprise input shaft, output shaft, gear, gear ring and Tong Gai, it is characterized in that: input shaft is housed in the decelerator body, output shaft, gear, gear ring, input shaft is equipped with eccentric bushing (18), input shaft (5) has dual-gripper bearing (8,19), eccentric bushing is equipped with two capacity eccentric bearings (17,30), two capacity eccentric bearings (17,30) gear (2 is housed respectively, 29), two gears (2,29) the outer gear ring (1) that connects, two gears (2,29) be fixed in equal load plate (3) and axle shaft (21) by connecting bearing pin (13), all load plate (3) is provided with bearing (12), between output shaft (21) cylindrical and Tong Gai (16) seal ring is housed.
2. star wheel reducer according to claim 1 is characterized in that: bearing housing (11) and gear ring (1), logical lid (4,16) is by bolton together up and down.
3. star wheel reducer according to claim 1 is characterized in that: two gears (2,29) are provided with spacer ring (15).
4. star wheel reducer according to claim 1 is characterized in that: input shaft is shaft-mounted, motor straight connection type, cartridge type or connects tray type structure.
5. star wheel reducer according to claim 1 is characterized in that: output shaft (21) and equal load plate (3) cylindrical are symmetrically distributed with ball bearing.
6. star wheel reducer according to claim 1 is characterized in that: seal ring is an O type circle (26) between output shaft (21) cylindrical and Tong Gai (16).
7. star wheel reducer according to claim 1 is characterized in that: input shaft (5) is provided with keyway (6,28), and output shaft (21) is provided with keyway (20).
8. star wheel reducer according to claim 1 is characterized in that: connect bearing pin (13) and be provided with catch (24) and pin (25).
9. star wheel reducer according to claim 1 is characterized in that: the decelerator body is provided with abat-vent (29), lubricating cup (30).
CNB2007100571188A 2007-04-11 2007-04-11 Star wheel reducer CN100427801C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100571188A CN100427801C (en) 2007-04-11 2007-04-11 Star wheel reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100571188A CN100427801C (en) 2007-04-11 2007-04-11 Star wheel reducer

Publications (2)

Publication Number Publication Date
CN101038017A CN101038017A (en) 2007-09-19
CN100427801C true CN100427801C (en) 2008-10-22

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5709373B2 (en) * 2009-12-07 2015-04-30 Ntn株式会社 In-wheel motor drive device
CN102889338B (en) * 2011-07-17 2015-11-25 陈伟 New Star wheel decelerator
CN102678831B (en) * 2012-05-08 2016-04-27 吴小杰 Aerial cableway self-retention little tooth difference speed reducer
CN104235272A (en) * 2013-06-10 2014-12-24 廖承平 Switching mechanism
JP6059643B2 (en) * 2013-11-27 2017-01-11 住友重機械工業株式会社 Reduction gear
CN104141745A (en) * 2014-07-29 2014-11-12 西北工业大学 Star type herringbone gear reducer
CN104747658B (en) * 2015-03-06 2017-12-19 浙江汇鑫传动机械有限公司 Zero return difference involute less tooth difference reductor
CN105465287A (en) * 2016-01-07 2016-04-06 刘朝龙 Small planetary reducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2210174Y (en) * 1993-10-21 1995-10-18 徐至辉 Automatically centering and less teeth-differencial winding drum
CN2658479Y (en) * 2003-10-13 2004-11-24 金华市润华机电制造有限公司 Few gear differential planet wheel capstan reducing gear
CN2830366Y (en) * 2005-08-12 2006-10-25 李耀卿 Less tooth defference driving electric hoist reducer
CN2835703Y (en) * 2005-10-19 2006-11-08 天津减速机股份有限公司 Even load output device of planet cycloid reducer
CN2854208Y (en) * 2005-07-04 2007-01-03 天津减速机股份有限公司 Planet cycloid pinwheel reducing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2210174Y (en) * 1993-10-21 1995-10-18 徐至辉 Automatically centering and less teeth-differencial winding drum
CN2658479Y (en) * 2003-10-13 2004-11-24 金华市润华机电制造有限公司 Few gear differential planet wheel capstan reducing gear
CN2854208Y (en) * 2005-07-04 2007-01-03 天津减速机股份有限公司 Planet cycloid pinwheel reducing machine
CN2830366Y (en) * 2005-08-12 2006-10-25 李耀卿 Less tooth defference driving electric hoist reducer
CN2835703Y (en) * 2005-10-19 2006-11-08 天津减速机股份有限公司 Even load output device of planet cycloid reducer

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Free format text: CORRECT: ADDRESS; FROM: 300161 NO.112, WEI NATIONAL ROAD, HEDONG DISTRICT, TIANJIN CITY TO: 300308 A3-119, NO.166, XISANDAO, AIRPORT LOGISTICS PROCESS DISTRICT, TIANJIN CITY

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Effective date of registration: 20120705

Address after: 300308 A3-119, three West 166, Tianjin Airport Logistics Processing Zone

Patentee after: Tianjin Baili Tianxing Transmission Co., Ltd.

Address before: 300161 Tianjin City Hedong District Weiguo Road No. 112

Patentee before: Tianjin Speed Reducer Co., Ltd.

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Owner name: TIANJIN BAILI TIANXING TRANSMISSION CO., LTD.

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Granted publication date: 20081022

Termination date: 20140411