CN205908636U - Multiseriate does not have full ball self -aligning bearing of holder - Google Patents

Abstract

The utility model provides a multiseriate does not have full ball self -aligning bearing of holder, includes the outer lane, and inner circle and ball ring, ball ring are arranged by a plurality of ball and are constituteed, and the ball ring is located between outer lane and the inner circle, is provided with ring groove on the outer peripheral face of inner circle, and the ball encircles and is located ring groove, ball ring have two at least, the quantity of ball ring the same with ring groove's quantity, the ball completely adorn in ring groove, the ball be spherical or cylindrical, the utility model discloses can satisfy the different demands of all kinds of host computers of working under the various different work condition conditions, on the other hand, compact structure, bearing force are big, satisfy high rotational speed requirement, are applicable to on all kinds of heavy machinery devices.

Description

A multi-row cageless full ball self-aligning bearing

technical field

The utility model relates to the technical field of heavy-duty bearings with a high number of revolutions, in particular to a multi-row self-aligning bearing full of balls without a cage.

Background technique

At present, existing bearings generally consist of an outer ring, an inner ring, a cage and balls. The function of the cage in the bearing is mainly to guide the balls to roll in the correct position and prevent the balls from being misaligned. However, when the balls move axially, this structure is likely to cause damage to the cage and cause the bearing to be stuck, and the sliding friction between the cage and the rolling body Large surfaces can easily cause bearing heat and wear, especially under high-speed operating conditions, the action of inertial centrifugal force will intensify friction, wear and heat, and in severe cases, it will cause burns or breakage of the cage, making the bearing unusable and reducing the service life of the bearing . Moreover, the bearings are all composed of single-row ball rings and the ball rings are composed of a few balls, which cannot bear large heavy loads, and there are certain defects in wear resistance and strength. Therefore, the existing large bearings (inner diameter 80cm and above) The structure cannot meet the requirements of heavy loads with high revolutions (2000 revolutions per minute).

Contents of the invention

In order to solve the above problems, the utility model provides a multi-row self-aligning bearing full of balls without a cage.

The purpose of this utility model is achieved in this way: a multi-row non-cage full ball self-aligning bearing, including an outer ring, an inner ring and a ball ring, the ball ring is composed of several balls arranged, and the ball ring is located on the outer ring and the inner ring Between, an annular groove is arranged on the outer peripheral surface of the inner ring, and the ball ring is located in the annular groove.

The utility model also has the following technical characteristics:

1. There are at least two ball rings as mentioned above.

2. The number of ball rings mentioned above is the same as the number of annular grooves.

3. The above-mentioned balls are fully filled in the annular groove.

4. The above-mentioned balls are spherical or cylindrical.

The effect and benefits of the utility model are: there is an annular groove filled with balls on the outer peripheral surface of the inner ring, and there is no disadvantage caused by the cage, so that the balls can not only roll in the correct position but also increase the load of the bearing ability, and avoid the phenomenon that the balls are stuck when the cage is damaged when moving axially, so that the friction of the balls becomes smaller, the rotation is more convenient, and the service life of the bearing is increased; the design of multi-row ball rings and full balls allows the bearing to Bear greater heavy load, high revolutions. The wear resistance and strength are enhanced, and the service life of the bearing is also increased, the precision of the bearing is enhanced, the requirement of high rotation speed and the concentricity requirement of the shaft are reduced. It can meet the different needs of various hosts working under various working conditions, and is suitable for all kinds of high-speed heavy-duty mechanical devices.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a bearing of the present invention.

Fig. 2 is a partial schematic diagram of a section of a bearing of the present invention.

detailed description

Below according to the accompanying drawings of description, the utility model is further explained by way of example:

Example 1

As shown in Figure 1-2, a multi-row cageless full ball self-aligning bearing includes an outer ring 1, an inner ring 2 and a ball ring. The ball ring is composed of a number of balls 3 arranged in the outer ring 1 and Between the inner rings 2 , an annular groove 4 is arranged on the outer peripheral surface of the inner ring 2 , and the ball ring is located in the annular groove 4 .

The ball ring described in this embodiment has five rows.

The number of ball rings described in this embodiment is the same as the number of annular grooves 4 .

The balls 3 described in this embodiment are fully filled in the annular groove 4 .

The ball 3 described in this embodiment is spherical.

When the utility model is working: the ball 3 rotates along the axial direction in the annular groove 4, the annular groove 4 ensures that the ball 3 rolls in the correct position, prevents the misalignment of the ball 3, the five-row ball ring and the full ball 3. Allow the bearing to withstand greater heavy loads, enhance wear resistance and strength, achieve high speed requirements and reduce shaft concentricity requirements. It can meet the high-speed heavy-duty machines with poor dynamic balance and poor concentricity, such as pulverizer shafts, glass sanding machine shafts, etc. It is suitable for the different needs of various hosts working under various working conditions.

Claims (5)

1. the full ball self-aligning bearing of a kind of multiple row no retainer, including outer ring, inner ring and ball ring, ball ring is by several balls Rearrange, ball ring be located between outer ring and inner ring it is characterised in that: annular recess is provided with the outer peripheral face of inner ring, rolling Pearl ring is located in annular recess.

2. a kind of full ball self-aligning bearing of multiple row according to claim 1 no retainer it is characterised in that: described ball At least two, ring.

3. a kind of full ball self-aligning bearing of multiple row according to claim 1 and 2 no retainer it is characterised in that: described The quantity of ball ring is identical with the quantity of annular recess.

4. a kind of full ball self-aligning bearing of multiple row according to claim 1 no retainer it is characterised in that: described ball Completely it is loaded in annular recess.

5. a kind of full ball self-aligning bearing of multiple row according to claim 4 no retainer it is characterised in that: described ball It is spherical or cylindrical.