CN212155486U

CN212155486U - Square bearing structure

Info

Publication number: CN212155486U
Application number: CN202020540056.7U
Authority: CN
Inventors: 徐嘉茂; 霍海娥; 段翠娥; 刘中勇; 冯诗涵; 姜影; 吉方慧; 周建强; 闫梦瑶; 周烨
Original assignee: Sichuan Normal University
Current assignee: Sichuan Normal University
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-15
Anticipated expiration: 2030-04-14

Abstract

The utility model relates to a bearing field, concretely relates to square bearing structure. Including outer lane of a shaft and bearing inner race, the bearing outer race is ring shape, the inside and outside regular polygon that is of bearing inner race, be equipped with the rolling element mounting groove on the bearing inner race, the rolling element mounting groove is including setting up the first rolling element mounting groove at central cross section mid point position to and set up the second rolling element mounting groove in the adjacent both sides intersection of cross section, be equipped with first rolling element and second rolling element in first rolling element mounting groove and the second rolling element mounting groove respectively, be equipped with the barrier ring between bearing inner race and the bearing outer race, be equipped with the aperture that does not influence first rolling element and second rolling element and bearing outer race inner wall contact on the barrier ring, bearing inner race and bearing outer race clearance department are equipped with the sealing washer. This reality is novel makes the fixed mode of bearing endotheca and outer lane simplify, and difficult and take place relative motion between axle and the outer lane fixing base.

Description

Square bearing structure

Technical Field

The utility model relates to a bearing field, concretely relates to square bearing structure.

Background

The bearing is an important part in the modern mechanical equipment and plays a vital role in modern mechanization work. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision.

The inner ring and the outer ring of the traditional bearing are both designed in a circular ring mode, when the bearing is installed, in order to prevent the bearing from moving relatively on a shaft and in a bearing seat hole, a bearing inner sleeve must be fastened on the shaft, and the outer ring must be fastened in the bearing seat hole (or a sleeve cup). The fixing means generally employed are as follows:

1) the shaft shoulder of the bearing is fixed, and the bearing inner sleeve is axially fixed by the shaft shoulder and interference. The support structure is suitable for a support structure with two fixed ends. Simple structure and small overall size. (2) The elastic retainer ring of the bearing is fixed, and the bearing inner sleeve is axially fixed by a shaft shoulder and a locking nut. Can bear a small bidirectional axial load. The axial structure has small size. (3) The locking nut of the bearing is fixed, and the bearing inner sleeve is axially fixed by the shaft shoulder and the locking nut. The locking washer is anti-loose, safe and reliable, and is suitable for high-speed and heavy-load occasions. (4) The end face thrust washer of the bearing is fixed, and the bearing inner sleeve is axially fixed by a shaft shoulder and a shaft end retainer ring. The shaft end retainer ring is fixed at the shaft end by a screw. The set screw should have a locking device. The device is suitable for occasions where the shaft end is not suitable for cutting threads or the space is limited. (5) The adapter sleeve of the bearing is fixed, and is compressed and clamped on the shaft by depending on the radial size of the inner hole of the adapter sleeve, so that the axial fixation of the inner sleeve of the bearing is realized. (6) The withdrawal sleeve of the bearing is fixed, and the clamping mode of the withdrawal sleeve is the same as that of the adapter sleeve. However, the special nut is arranged on the withdrawal sleeve, so that the bearing is convenient to assemble and disassemble, and the withdrawal sleeve is suitable for fixing the double-row spherical bearing with larger radial load and smaller axial load on an optical axis. (

However, the conventional bearing is fixed by the above method, the fixing method is complicated, and the situation that the fixed part is loosened cannot be eliminated, if the fixing is loosened, the bearing inner sleeve and the shaft or the bearing outer sleeve and the fixed seat rotate relatively, which results in the reduction of the working efficiency of the rotating equipment.

SUMMERY OF THE UTILITY MODEL

To the problem among the above-mentioned prior art, an object of the utility model is to provide a square bearing structure for solve and take place relative rotation between traditional bearing endotheca and axle or outer lane and the fixing base, make the problem that rotating equipment efficiency reduces, and traditional mode is to the more loaded down with trivial details problem of bearing endotheca and outer lane fixed mode.

In order to achieve the above purpose, the utility model adopts the following technical scheme: including outer lane of a shaft and bearing inner race, the bearing outer race is ring shape, the inside and outside regular polygon that is of bearing inner race, be equipped with the rolling element mounting groove on the bearing inner race, the rolling element mounting groove is the hemisphere, the rolling element mounting groove is including setting up the first rolling element mounting groove in cross section edge position to and set up the second rolling element mounting groove in the adjacent both sides intersection department of cross section, be equipped with first rolling element and second rolling element in first rolling element mounting groove and the second rolling element mounting groove respectively, the diameter of first rolling element is greater than the diameter of second rolling element, be equipped with the stopping ring between bearing inner race and the bearing outer race, be equipped with the aperture that does not influence first rolling element and second rolling element and bearing outer race inner wall contact on the stopping ring, bearing inner race and bearing outer race clearance department are equipped with the.

Further, the inner side of the bearing outer sleeve is in a circular ring shape, and the outer side of the bearing outer sleeve is in a regular octagon shape.

Further, the thickness of the inner ring is 11mm, and the thickness of the outer ring is 17 mm.

Further, the radius of the first rolling body is 6mm, and the radius of the second rolling body is 3 mm.

Further, the rolling body mounting groove is in the shape of a semi-cylindrical groove, and a roller is arranged in the semi-cylindrical mounting groove.

Further, the first rolling body mounting groove and the second rolling body mounting groove are hemispherical grooves, and the first rolling body and the second rolling body mounted in the first rolling body mounting groove and the second rolling body mounting groove are balls.

Further, the first rolling body mounting groove and the second rolling body mounting groove are semi-cylindrical grooves, and rollers are arranged in the first rolling body mounting groove and the second rolling body mounting groove.

Furthermore, the stopping ring is made of porous, high-temperature-resistant and low-density materials, and has the advantages that: the blocking ring can adsorb lubricating oil in the bearing, and oil is supplied to the rolling body when the lubricating effect is poor, so that the lubricating capability of the rolling body is ensured.

The utility model has the advantages that: the bearing inner sleeve is arranged to be polygonal, and the regular polygon can be easily matched with the corresponding shaft, so that the fixing mode is simple, and the phenomenon of slipping is not easy to occur. In addition, the traditional bearing needs the retainer and the grooves of the inner ring and the outer ring of the bearing to control the motion track of the rolling body, so that the precision is improved, the retainer in the traditional bearing is replaced by the rolling body mounting groove on the inner ring, the freedom degree of the rolling body in the bearing relative to the inner ring is reduced, and the stability is facilitated. And the design of the blocking ring can absorb the lubricating oil in the bearing, the absorption of the lubricating oil is stopped in a saturated state, and when the lubricating effect of the rolling body in the bearing is poor, the blocking ring can supply the oil to the rolling body to ensure the lubricating effect.

Drawings

Fig. 1 is an exploded view of embodiment 1 of the present invention.

Fig. 2 is an exploded view of embodiment 2 of the present invention.

Fig. 3 is an exploded view of embodiment 3 of the present invention.

Fig. 4 is an exploded view of embodiment 4 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the rolling bearing comprises a bearing inner sleeve 1, a second rolling body 2, a first sealing ring 3, a stopping ring 4, a second sealing ring 5, a bearing outer sleeve 6, a first rolling body mounting groove 7, a second rolling body mounting groove 8, a first rolling body 9, a first cylindrical rolling body 10, a second cylindrical rolling body 11 and a circular ring-shaped bearing outer sleeve 12.

It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

As shown in fig. 1, a square bearing structure includes a bearing inner sleeve 1 and a bearing outer sleeve 6, both an inner ring and an outer ring of the bearing inner sleeve 1 are regular octagon structures, the inner ring of the bearing outer sleeve 6 is circular, the outer ring is regular octagon, a first rolling element mounting groove 7 is formed in the center of the outer ring surface of the bearing inner sleeve 1, the first rolling element mounting groove 7 is shaped like an inwards concave hemisphere, a second rolling element mounting groove 8 is formed in the midpoint of a vertical edge line of the outer ring of the bearing inner sleeve 1, and the number of the first rolling element mounting groove 7 and the number of the second rolling element mounting groove 8 are eight.

The thicknesses of the bearing inner sleeve 1 and the bearing outer sleeve 6 are respectively 11mm and 17mm, a first rolling body 9 and a second rolling body 2 are arranged in a first rolling body mounting groove 7 and a second rolling body mounting groove 8 of the bearing inner sleeve 1, the first rolling body 9 and the second rolling body 2 are spherical balls, the radius of the first rolling body is 6mm, and the radius of the second rolling body is 3 mm. A blocking ring 4 is arranged between the bearing inner sleeve 1 and the bearing outer sleeve 6, small holes corresponding to the first rolling body 9 and the second rolling body 2 in size are formed in the blocking ring 4, and the blocking ring 4 is made of porous soft materials. And after the assembly is finished, a sealing ring is arranged in a gap between the bearing inner sleeve 1 and the bearing outer sleeve 6. The upper end and the lower end of the bearing outer sleeve 6 are respectively provided with a first sealing ring 3 and a second sealing ring 5.

The stopping ring 4 is made of porous materials, so that lubricating oil between the bearing inner sleeve and the bearing outer sleeve 6 can be absorbed, and when the bearing reaches a saturated state, lubricating oil can be supplemented to the rolling elements in the bearing, and the lubricating effect of the bearing is ensured.

Example 2

A square bearing structure, as shown in fig. 2, embodiment 2 is different from embodiment 1 in that a bearing outer sleeve 6 is a circular bearing outer sleeve 12, two sets of first rolling element mounting grooves 7 and second rolling element mounting grooves 8 are formed in the bearing inner sleeve 1, and two sets of corresponding through holes are correspondingly formed in a blocking ring 4, and the through holes do not affect the contact between the first rolling elements 9 and the second rolling elements 2 and the inner ring of the bearing outer sleeve 6.

Example 3

A square bearing structure is shown in figure 3, and the difference between the embodiment 3 and the embodiment 1 is that the bearing outer sleeve 6 is a circular ring-shaped bearing outer sleeve 12, the first rolling body mounting groove 7 and the second rolling body mounting groove 8 on the bearing are semi-cylindrical grooves, a first cylindrical rolling body 10 and a second cylindrical rolling body 11 are correspondingly arranged in the semi-cylindrical grooves, and a blocking ring 4 of the square bearing structure is provided with square through holes corresponding to the first cylindrical rolling body 10 and the second cylindrical rolling body 11.

Example 4

A square bearing structure, as shown in fig. 4, is different from embodiment 1 in that the bearing outer sleeve 6 is a circular ring-shaped bearing outer sleeve 12.

The square bearing structure has the advantages that the bearing inner sleeve 1 is polygonal, and the regular polygon can be easily matched with a corresponding shaft, so that the fixing mode is simple, and the phenomenon of slipping is not easy to occur. In addition traditional bearing all needs the motion trail that the rolling element was controlled to the recess of holder and bearing inner and outer lane to improve precision, the utility model discloses an interior epaxial rolling element mounting groove has replaced the holder in traditional bearing, makes the rolling element in the bearing reduce for the degree of freedom of inner circle, is favorable to stability more. And the design of the blocking ring 4 can absorb the lubricating oil in the bearing, the absorption of the lubricating oil is stopped in a saturated state, and when the lubricating oil in the bearing is reduced, the blocking ring 4 can supply the oil to the rolling body, so that the lubricating effect is ensured.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a square bearing structure, includes bearing shell and bearing endotheca, its characterized in that: the bearing sleeve is ring-shaped, the inside and outside of bearing sleeve is regular polygon, bearing sleeve circumference evenly is equipped with the rolling element mounting groove, the rolling element mounting groove is including setting up the first rolling element mounting groove at central cross section edge position to and set up the second rolling element mounting groove at the adjacent both sides intersection department of cross section, be equipped with first rolling element and second rolling element in first rolling element mounting groove and the second rolling element mounting groove respectively, the diameter of first rolling element is greater than the diameter of second rolling element, be equipped with the barrier ring between bearing sleeve and the bearing sleeve, be equipped with the aperture that does not influence first rolling element and second rolling element and bearing sleeve inner wall contact on the barrier ring, bearing sleeve and bearing sleeve both ends clearance department are equipped with the sealing washer.

2. A square bearing structure according to claim 1, wherein: the inner side of the bearing outer sleeve is in a ring shape, and the outer side of the bearing outer sleeve is in a regular octagon shape.

3. A square bearing structure according to claim 1, wherein: the bearing inner sleeve is provided with two groups of rolling body mounting grooves, a first rolling body and a second rolling body are correspondingly arranged in the two groups of rolling body mounting grooves, and two groups of small holes which do not influence the contact between the first rolling body and the inner wall of the bearing outer sleeve and the contact between the second rolling body and the inner wall of the bearing outer sleeve are correspondingly formed in the blocking ring.

4. A square bearing structure according to claim 1, wherein: the first rolling body mounting groove and the second rolling body mounting groove are semi-cylindrical grooves, and rollers are arranged in the first rolling body mounting groove and the second rolling body mounting groove.

5. A square bearing construction according to claim 4, wherein: the first rolling body mounting groove and the second rolling body mounting groove are hemispherical grooves, and the first rolling body and the second rolling body mounted in the first rolling body mounting groove and the second rolling body mounting groove are balls.

6. A square bearing construction according to claim 5, wherein: the radius of the first rolling body is 6mm, and the radius of the second rolling body is 3 mm.

7. A square bearing structure according to claim 1, wherein: the stopping ring is made of porous, high-temperature-resistant and low-density materials.

8. A square bearing structure according to claim 1, wherein: the thickness of the bearing inner sleeve is 11mm, and the thickness of the bearing outer sleeve is 17 mm.