CN2448989Y

CN2448989Y - Speed reducing bearing

Info

Publication number: CN2448989Y
Application number: CN 00255659
Authority: CN
Inventors: 徐建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-09
Filing date: 2000-10-09
Publication date: 2001-09-19
Anticipated expiration: 2010-10-09

Abstract

The utility model relates to a speed reducing bearing; the outer circumference at both ends of an eccentric input inner ring 1 is distributed with bowls I3 and bowls II8; a retainer I2 is arranged between the bowls I3; a retainer II9 is arranged between the bowls II8; the peripheries of the bowls II8 are fixed to fixing support rings 7; the peripheries of the bowls I3 are inlaid with output outer rings 4; differential rollers 5 are distributed between the output outer ring 4 and the eccentric input inner ring 1; retainers 10 are connected with the fixing support rings 7, which is connected between the differential rollers 5; the inner side of the output outer ring 4 forms a plurality of blossom-like cavities, and arc lines 11 arranged in the blossom-like cavities enable the rollers 5 to rotate and to move in the blossom-like cavities.

Description

A kind of speed reduction bearing

The utility model relates to a kind of speed reduction bearing technical field.

The II class of using " whole eccentric " bearing only is a part of carrying out deceleration component at present, it does not possess independently integrity, also will dispose setting another part antithesis element after the user buys again could use, this just causes processed complex, service cycle is long, the manufacture cost height uses extremely inconvenient.

The purpose of this utility model is a kind of speed reduction bearing of design, it is base of design with the differential principle, power is by the input of off-centre input inner ring, make differential rolling move and rotate drive output outer ring rotation by this eccentric motion to reach the purpose of deceleration, can the equally normal use of direct image plain bearing thereby overcome above-mentioned shortcoming.

The utility model is achieved in that distributing on the eccentric input inner ring 1 two ends excircle spin I 3 and spin II 8, retainer I 2 is arranged between the spin I 3, retainer II 9 is arranged between the spin II 8, spin II 8 peripheries stud with fixed bearing circle 7, spin I 3 peripheries stud with output outer ring 4, distribution person is differential between output outer ring 4 and the eccentric input inner ring 1 rolls 5, differential have retainer 10 to be connected with fixed bearing circle 7 between rolling 5, and output outer ring 4 is inboard to be formed in a plurality of plum blossoms chamber camber line 11 and make and differentially roll 5 and rotate within it and move.

The utility model has the advantages that: novel uniqueness, design principle is ingenious, has realized that speed reduction bearing is integrated, it is easy for installation, and manufacturing process is simple, and cost is low, long service life can realize uniting two into one of " bearing " and " retarder " in some specific occasion.

Below in conjunction with accompanying drawing, the utility model is described further with embodiment:

Fig. 1 plan view, Fig. 2 are the sectional view at Figure 1A-A place.

In the accompanying drawing: 1, eccentric input inner ring, 2, the retainer I, 3, the spin I, 4, the output outer ring, 5, differential rolling, 6, dust cover, 7, the fixed bearing circle, 8, the spin II, 9, the retainer II, 10, retainer, 11, camber line in the plum blossom chamber.

Spin I 3 and spin II 8 are distributing on the eccentric input inner ring 1 two ends excircle, retainer I 2 is arranged between the spin I 3, retainer II 9 is arranged between the spin II 8, spin II 8 peripheries stud with fixed bearing circle 7, spin I 3 peripheries stud with output outer ring 4, distribution person is differential between output outer ring 4 and the eccentric input inner ring 1 rolls 5, differential have retainer 10 to be connected with fixed bearing circle 7 between rolling 5, output outer ring 4 is inboard to be formed in a plurality of plum blossoms chamber camber line 11 and makes and differentially roll 5 and rotate within it and move, power is by 1 input of off-centre input inner ring, because the off-centre of this circle 1 moves successively and contacts with differential of rolling in 5, make this roll 5 move and rotate produce a phase angle difference drive output outer ring 4 also mobile phase with angle slow down realizing, that is: eccentric input inner ring 1 turns around, and an angle is changeed in 4 of output outer rings.

Claims

A kind of speed reduction bearing, it is characterized in that: spin I (3) and spin II (8) are distributing on the excircle of eccentric input inner ring (1) two ends, retainer I (2) is arranged between the spin I (3), retainer II (9) is arranged between the spin II (8), spin II (8) periphery studs with fixed bearing circle (7), spin I (3) periphery studs with output outer ring (4), distribution person is differential between output outer ring (4) and the eccentric input inner ring (1) rolls (5), have retainer (10) to be connected with fixed bearing circle (7) between differential the rolling (5), camber line (11) makes differential rolling (5) rotate and move within it in a plurality of plum blossoms of the inboard formation chamber, output outer ring (4).