CN206972835U

CN206972835U - A kind of slim bearing decelerator

Info

Publication number: CN206972835U
Application number: CN201720988576.2U
Authority: CN
Inventors: 王心成; 李鹭扬
Original assignee: Yangzhou Yuan Xin Electrical And Mechanical Technology Co Ltd
Current assignee: Yangzhou Yuan Xin Electrical And Mechanical Technology Co Ltd
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2018-02-06
Anticipated expiration: 2027-07-31

Abstract

The utility model discloses a kind of slim bearing decelerator, belong to technical field of mechanical transmission.Bent axle one end is inputted to be installed on the output with one group of first ball bearing support, shell and input are bolted to connection, two borehole jacks are outside two dogs of cycloid gear on four hole driving members, other two apertures are enclosed on outside two dogs of output end, translation roller is provided with the gap of dog and hole both sides, the slim bearing decelerator uses the primary speed-down transmission mechanism of monolithic cycloid gear, can be direct-connected by motor shaft and decelerator input bent axle progress, the rotation of motor can also be passed to by input bent axle by modes such as gear or timing belts, it is supported between input bent axle and cycloid gear using ball bearing and axial limiting, it is supported between output end and shell using the 3rd ball bearing and axial limiting, with compact-sized, axial dimension is small, precision is high, transmission efficiency, long lifespan, the advantages of manufacturing cost is low.

Description

A kind of slim bearing decelerator

Technical field：

A kind of slim bearing decelerator is the utility model is related to, belongs to technical field of mechanical transmission.

Background technology：

Bearing decelerator on the market is mainly used in industrial robot, metal working machine tool, Medical Devices, optics at present The numerous areas such as instrument, national defense and military.The main users demand of such product is precision height, large carrying capacity, it is big to transmit moment of torsion, Resistance to capsizing is strong, long lifespan, also requires that the axial dimension of bearing decelerator is smaller in many practical applications in addition It is better, installing space can not only be saved, facilitates bearing decelerator and motor direct-connected, while can also simplify the installation of bearing decelerator Scheme.

The bearing decelerator of main flow is the humorous of the HarmonicDrive (Harmer Na Ke companies) of Japan on domestic market The RV type speed reducers of ripple decelerator, Nabtesco (Na Botesike companies).Harmonic speed reducer is due to reasons in structure, load and torsion Square is smaller, and shock resistance is poor, is only used for underload occasion.RV decelerator manufacturing costs are of a relatively high, and more uses Two-stage type of belt drive, integrally axial volume is larger for decelerator, it is impossible to makees the decelerator of small size, can not realize in some small spaces Interior application.

The development of current kind of bearings decelerator in the world along electromechanical integration joint of robot direction except studying In addition, the design and research of slim bearing decelerator is also constantly being carried out, and the application prospect of slim bearing decelerator will also compare machine Electrical integrated joint of robot is more extensive.

Utility model content：

In view of the above-mentioned problems, the technical problems to be solved in the utility model is to provide a kind of slim bearing decelerator, it is adopted With the primary speed-down transmission mechanism of monolithic cycloid gear, have compact-sized, axial dimension is small, precision is high, transmission efficiency, the longevity The advantages of life is long, manufacturing cost is low.

Slim bearing decelerator of the present utility model, it include input bent axle, the first ball bearing, output end, roller bearing, Input, cycloid gear, the second ball bearing, needle roller, shell, the 3rd ball bearing, four hole driving members, translation roller, the first rotation Outside framework oil seal, the second rotation outside framework oil seal and the 3rd rotation outside framework oil seal, wherein input one group of first ball bearing in bent axle one end On the output, the input bent axle other end is arranged on input with one group of roller bearing supports for support installation, on the inside of input Some needle rollers are installed, cycloid gear external tooth is engaged with needle roller, and shell and input are bolted to connection, four hole driving members Outside two dogs of cycloid gear, other two apertures are enclosed on outside two dogs of output end upper two borehole jacks, dog and hole both sides Gap in be provided with translation roller.

Preferably, by one group of second ball bearing support installation between described input bent axle and cycloid gear, and put Line gear is monolithic cycloid gear.

Preferably, pass through one group of the 3rd ball bearing support installation between described output end and shell.

Preferably, eccentric boss is provided with described input bent axle, for balancing caused by cycloid gear motion Inertia.

Preferably, the first described rotation outside framework oil seal is arranged between shell and output end, the second rotation skeleton oil Envelope is arranged between input bent axle and output end, and the 3rd rotation outside framework oil seal is arranged between input bent axle and input.

The beneficial effects of the utility model：The slim bearing decelerator uses the primary speed-down driver of monolithic cycloid gear Structure, motor shaft and decelerator input bent axle can be carried out it is direct-connected, can also be by modes such as gear or timing belts by motor Rotation passes to input bent axle, and input bent axle is supported on input and output end with roller bearing and the first ball bearing respectively, There is eccentric boss to be used to balance inertia caused by the motion of monolithic cycloid gear on input bent axle, between input bent axle and cycloid gear It is supported using ball bearing and axial limiting, is supported using the 3rd ball bearing and axially limited between output end and shell Position.It is excellent that the utility model has that compact-sized, axial dimension is small, precision is high, transmission efficiency, long lifespan, manufacturing cost are low Point.

Brief description of the drawings：

For ease of explanation, the utility model is described in detail by following specific implementations and accompanying drawing.

Fig. 1 is decomposition texture schematic diagram of the present utility model；

Fig. 2 is cross section structure diagram of the present utility model；

Fig. 3 is overall assembling schematic diagram of the present utility model

Fig. 4 is the structural representation of input bent axle of the present utility model.

Reference：Input bent axle 1, the first ball bearing 2, output end 3, roller bearing 4, input 5, cycloid gear 6, the Two ball bearings 7, needle roller 8, shell 9, the 3rd ball bearing 10, four hole driving members 11, translation roller 12, first rotate outside framework oil seal 13rd, the second rotation outside framework oil seal the 14, the 3rd rotates outside framework oil seal 15.

Embodiment：

As Figure 1-Figure 4, present embodiment uses following technical scheme：It includes input bent axle 1, the first ball axle Hold 2, output end 3, roller bearing 4, input 5, cycloid gear 6, the second ball bearing 7, needle roller 8, shell 9, the 3rd ball bearing 10, Four hole driving members 11, translation roller 12, first rotate outside framework oil seal 13, second and rotate the rotation skeleton oil of outside framework oil seal 14 and the 3rd Envelope 15, wherein input one end of bent axle 1 is arranged in output end 3 with one group of first support of ball bearing 2, input bent axle 1 other end is used One group of support of roller bearing 4 is arranged on input 5, and the inner side of input 5 is provided with some needle rollers 8, the external tooth of cycloid gear 6 and rolling Pin 8 is engaged, and shell 9 and input 5 are bolted to connection, and two borehole jacks are the two of cycloid gear 6 on four hole driving members 11 Outside individual dog, other two apertures are enclosed on outside two dogs of output end 3, and translation roller is provided with the gap of dog and hole both sides 12。

Wherein, installed between described input bent axle 1 and cycloid gear 6 by one group of second support of ball bearing 7, and cycloid Gear 6 is monolithic cycloid gear；Pass through one group of the 3rd support installation of ball bearing 10 between described output end 3 and shell 9；It is described Input bent axle 1 on be provided with eccentric boss, move caused inertia for balancing cycloid gear 6；The first described rotation Outside framework oil seal 13 is arranged between shell 9 and output end 3, and the second rotation outside framework oil seal 14 is arranged on input bent axle 1 and output end Between 3, the 3rd rotation outside framework oil seal 15 is arranged between input bent axle 1 and input 5.

Present embodiment operation principle is：The both ends of bent axle 1 are inputted respectively by the ball bearing 2 of roller bearing 4 and first Be respectively supported on input 5 and output end 3, input bent axle 1 rotate after, be installed on input bent axle 1 off-centre operation on second Ball bearing 7 promotes cycloid gear 6, cycloid gear 6 and the needle roller 8 of the inner side of output end 3 installation is engaged and is done few teeth difference motion shape Into deceleration；Dog on cycloid gear 6 drives four hole tumblers 11 to move, and four hole driving members 11 pass through the dog of output end 3 again Pass motion to output end 3；Eccentric boss on input bent axle 1 can balance cycloid gear 6 and rotate caused inertia；First Rotation outside framework oil seal 13 plays sealing function between shell 9 and output end 3, and the second rotation outside framework oil seal 14 is in input bent axle 1 Sealing function is played between output end 3, the 3rd rotation outside framework oil seal 15 plays sealing between input bent axle 1 and input 5 Effect.

The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model Claimed scope is by appended claims and its equivalent thereof.

Claims

A kind of 1. slim bearing decelerator, it is characterised in that：It includes input bent axle (1), the first ball bearing (2), output end (3), roller bearing (4), input (5), cycloid gear (6), the second ball bearing (7), needle roller (8), shell (9), the 3rd ball axle Hold (10), four hole driving members (11), translation roller (12), the first rotation outside framework oil seal (13), the second rotation outside framework oil seal (14) With the 3rd rotation outside framework oil seal (15), output end is arranged on wherein inputting bent axle (1) one end and being supported with one group of first ball bearing (2) (3) on, input bent axle (1) other end is arranged on input (5) with one group of roller bearing (4) support, is pacified on the inside of input (5) Equipped with some needle rollers (8), cycloid gear (6) external tooth engages with needle roller (8), shell (9) and input (5) company of being bolted Connect, for upper two borehole jacks of four hole driving members (11) outside two dogs of cycloid gear (6), other two apertures are enclosed on output end (3) Outside two dogs, translation roller (12) is provided with the gap of dog and hole both sides.
A kind of 2. slim bearing decelerator according to claim 1, it is characterised in that：Described input bent axle (1) and pendulum By one group of second ball bearing (7) support installation between line gear (6), and cycloid gear (6) is monolithic cycloid gear.
A kind of 3. slim bearing decelerator according to claim 1, it is characterised in that：Described output end (3) and shell (9) one group of the 3rd ball bearing (10) support installation is passed through between.
A kind of 4. slim bearing decelerator according to claim 1, it is characterised in that：Set on described input bent axle (1) It is equipped with eccentric boss.
A kind of 5. slim bearing decelerator according to claim 1, it is characterised in that：The first described rotation outside framework oil seal (13) it is arranged between shell (9) and output end (3), the second rotation outside framework oil seal (14) is arranged on input bent axle (1) and output Between holding (3), the 3rd rotation outside framework oil seal (15) is arranged between input bent axle (1) and input (5).