CN2193463Y

CN2193463Y - Reversely rotating bearing

Info

Publication number: CN2193463Y
Application number: CN 93212516
Authority: CN
Inventors: 陈恢松; 李敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-11
Filing date: 1993-05-11
Publication date: 1995-03-29
Anticipated expiration: 2003-05-11

Abstract

The utility model discloses a reversely rotating bearing, which is used in mechanical field. The reversely rotating bearing has a reliable support to diaxon, and can transfer the positive direction motion of a shaft to another shaft along the opposite direction. The utility model simplifies the defect of complicated structure of reverse mechanisms in the existing machinery, combining the reverse mechanism into a bearing. The utility model is characterized in that one end face of a bearing inner race (1) and a bearing inner race (5) is provided with bevel gears, a transition gear (6) is arranged between the bearing inner race (1) and the bearing inner race (5) and meshes respectively with the bearing inner race (1) and (5), and the centerline of the transition gear (6) is vertical to the centerlines of the bearing inner race (1) and the bearing inner race (5). The reversely rotating bearing can be widely and universally used in occasions of mechanics where counter shafts need supporting.

Description

Reversely rotating bearing

The utility model is a kind of Reversely rotating bearing for the mechanical field use, and its can equally with common bearing have reliable supporting to axle, and simultaneously, it can be delivered to the postive direction motion of an axle on another root axle along opposite direction.

Bearing commonly used in the prior art has radial ball bearing, garden post roller bearing, garden taper roller bearing etc.Though these bearings have reliable supporting to axle, it is function singleness in Machine Design is used.A complicated mechanical, often forward and backward motion is more, and therefore, it is many to finish the mechanism that the forward and backward motion needs, and institute takes up space big, and the device fabrication expense is many, and installation, maintenance is all inconvenient, can not satisfy the needs of modern mechanical industrial development.

For addressing this problem, common way is: reduce the size of reversing device as far as possible, and also feasible really to general machinery, but, come the reduction equipment volume by the size that reduces reversing device for the machinery of more complicated, often be difficult to realize.

The purpose of this utility model is that the mechanism with return motion is combined in the middle of the bearing, and its can equally with common bearing have reliable supporting to axle, and the while can provide rightabout motion.Advantages such as it has simple in structure, and mechanism is few, and motion is reliable, and output performance is stable.

The purpose of this utility model is achieved in that sees accompanying drawing 1, and it is made up of bearing outer ring (3), roller (2), bearing inner race (1) and bearing inner race (5), bearing pin assembly (4), transition gear (6).One end of bearing inner race (1) is shaped on umbrella gear, its external diameter moves in bearing outer ring (3) by roller (2), one end of bearing inner race (5) is shaped on umbrella gear too, its external diameter moves in bearing outer ring (3) by roller (2), transition gear (6) meshes with bearing inner race (1) and bearing inner race (5) respectively, and the center line of transition gear (6) is vertical with the center line of bearing inner race (5) with bearing inner race (1).The endoporus of transition gear (6) is connected with bearing pin assembly (4) by sliding bearing (7), for guaranteeing that transition gear (6) has enough strength and stiffness when rotating, bearing pin assembly (4) has four supports, be connected with bearing outer ring (3) at an angle of 90 mutually by fastening (as accompanying drawing 2), between bearing inner race (1) and the bearing inner race (5) rolling bearing (8) arranged.All have keyway on the internal diameter of bearing inner race (1) and bearing inner race (5), be connected with input, output shaft by key, it cooperates is interference fit H7/p6 or transition fit H7/n6.When motion, the postive direction of input shaft moves through bearing inner race (1), transition gear (6), is delivered to the opposite direction motion on the bearing inner race (5), has reached the purpose of counter-rotating, and the speed ratio of its input, output is 1:1.

Accompanying drawing 1, accompanying drawing 2 are described as follows:

1, bearing inner race 2, roller

3, bearing outer ring 4, bearing pin assembly

5, bearing inner race 6, transition gear

7, sliding bearing 8, rolling bearing

The utility model can be made into series product, is widely used in need supporting and changing diaxon in the machinery occasion of rotation direction as general part.

Claims

1, a kind of Reversely rotating bearing for the mechanical field use, it has reliable supporting to diaxon, and it can be delivered to the postive direction motion of an axle on another axle in the opposite direction simultaneously.It is characterized in that: an end face of bearing inner race (1) and bearing inner race (5) is shaped on umbrella gear, transition gear (6) is between bearing inner race (1) and bearing inner race (5), and respectively with its engagement, the center line of transition gear (6) is vertical with the center line of bearing inner race (5) with bearing inner race (1).

2, according to the Reversely rotating bearing described in the claim 1, it is characterized in that: the endoporus of bearing inner race (1) and bearing inner race (5) all has keyway and is connected with input, output shaft, and it cooperates is interference fit H7/p6 or transition fit H7/n6.

3, according to the Reversely rotating bearing described in the claim 1, it is characterized in that: transition gear (6) is connected with bearing pin assembly (4) by sliding bearing (7), and bearing pin assembly (4) has four supports, is connected fastening with bearing outer ring (3) at an angle of 90 mutually.

4, according to the Reversely rotating bearing described in the claim 1, it is characterized in that: the bearing input is 1:1 with the speed ratio of output.