CN215596209U - Crossed cylindrical roller bearing isolation block - Google Patents

Abstract

The utility model relates to a spacer block for a bearing, in particular to a spacer block for a crossed cylindrical roller bearing, which is a combined unit formed by a plurality of spacer block monomers, wherein the combined unit is encircled to form a circumferential frame body structure; the plurality of isolation block monomers are adjacent and movably connected with each other; the isolation block single bodies are respectively provided with inclined pocket holes which are divided into two forms of inclination angles towards the inner diameter of the frame body and inclination angles towards the outer diameter of the frame body; the bearing that traditional spacer structure was constructed can be solved in this design whole rotation precision is low, the operation is not steady, the jamming, the bearing easily generates heat, a large amount of problems such as life-span low, the spacer structure occupation space of brand-new design only is 1/3 of traditional spacer structure, the material is lightweight more, this kind of design not only can more effectual increase fill out the fat rate and improve lubricated effect, the design of lightweight simultaneously still can guarantee accurate starting torque, guarantee revolving stage angle of revolution's precision, improve cutting accuracy.

Description

Crossed cylindrical roller bearing isolation block

Technical Field

The utility model relates to an isolation block for a bearing, in particular to a crossed cylindrical roller bearing isolation block which is mainly used in a high-precision large-scale slewing bearing unit system.

Background

The isolation block is used in a high-precision large-scale slewing bearing unit system, such as a machine tool rotary table, medical equipment, a printing machine, rail transit and the like, and occasions requiring high-precision slewing bearings. The research and development of the isolation block can enable the slewing bearing unit to have higher rotation precision, more stable operation and low bearing noise.

The turntable bearing is a large bearing with a special structure which can bear the comprehensive loads such as larger axial load, radial load, overturning moment and the like and integrates multiple functions of supporting, rotating, transmitting, fixing and the like. When the precision requirements of engineering machinery and the like are high, the precision of a turntable bearing used by a main shaft of a rotary machine tool of a turntable also has high requirements. In the traditional design of the crossed cylindrical roller bearing, a rolling body is isolated by adopting an isolation block structure, but the traditional design is not adopted due to the problems of large mould opening difficulty, processing and manufacturing cost and the like of a large turntable bearing retainer grinding tool. The spacer structure, although easy to process, also suffers from the following problems:

1) the spacer block structure can guarantee reasonable axle, radial clearance and play position of rolling element in the cage structure unlike cage pocket hole structure to guarantee the correct gyration position of rolling element, the spacer block structure causes the crooked and card dead phenomenon of roller easily.

2. After the bearing is filled with grease, the gap value between the isolation block and the rolling body cannot be calculated and guaranteed, the uncertainty causes uneven isolation gap, poor rotation consistency of the rolling body and difficult installation, if the grease filling amount is too much, the isolation block and the rolling body cannot be smoothly and completely installed, the phenomenon of roller shortage is caused, and the serious quality defect that the operation of the bearing is blocked is easily caused due to the fact that the isolation block is inclined in operation. If the grease filling amount is reduced in order to ensure smooth loading, dry friction is formed between the roller and the raceway, and the problems of heat generation, reduced service life and the like of the bearing are caused.

Disclosure of Invention

In view of the above technical problems, the present invention is to design a crossed cylindrical roller bearing spacer, which can solve the problems of low rotation precision of the whole bearing, unstable operation, clamping stagnation, easy heating of the bearing, low service life and the like of the traditional spacer structure.

In order to achieve the purpose, the utility model adopts the technical scheme that: a crossed cylindrical roller bearing isolation block is a combined unit formed by a plurality of isolation block monomers, and the combined unit is enclosed to form a circumferential frame body structure; the plurality of isolation block monomers are adjacent and movably connected with each other; the isolation block single bodies are respectively provided with inclined pocket holes which are divided into two forms of inclination angles towards the inner diameter of the frame body and inclination angles towards the outer diameter of the frame body;

further, a combination unit formed by a plurality of isolation block monomers comprises: a single-pocket formed combination unit, a single-double-pocket formed combination unit, or a multi-pocket formed combination unit;

furthermore, the inclined pockets of the isolation block monomers are 45 degrees;

furthermore, the inclined pocket part of the single isolation block is arranged by protruding the cross section beam;

furthermore, the inclined pockets of a plurality of single isolating blocks in the combined unit formed in the single pocket form are arranged in a crossed manner, and every two adjacent inclined pockets are arranged at 90 degrees;

furthermore, a plurality of isolation block monomers in the combined unit formed in the single-double-pocket mode are arranged in the single-pocket mode and the double-pocket mode, and the inclination angle of the single pocket is opposite to that of the double pockets;

furthermore, the inclination angles of two pockets in each double pocket are consistent;

furthermore, a plurality of isolation block monomers in the combined unit formed in the multi-pocket mode are arranged in a mode that a plurality of pockets are one unit, and the inclination angle of the pocket of each unit are arranged in a 90-degree crossed mode;

further, the inclination angles of the plurality of pockets of each unit are uniform.

Furthermore, the joints of the two ends of the isolation block monomers are movably connected through buckles;

furthermore, a convex block is arranged on one side end face of each isolation block monomer, and a groove matched with the convex block is formed in the other side end face of each isolation block monomer; the plurality of isolation block monomers are connected in a matching way through the convex blocks and the grooves to form a whole combined unit;

furthermore, the groove is dovetail-shaped, and the bump is dovetail-shaped.

Furthermore, the isolation block monomers are made of PA12 material.

The utility model has the beneficial effects that: the bearing that traditional spacer structure was constructed can be solved in this design whole rotation precision is low, the operation is not steady, the jamming, the bearing easily generates heat, a large amount of problems such as life-span low, the spacer structure occupation space of brand-new design only is 1/3 of traditional spacer structure, the material is lightweight more, this kind of design not only can more effectual increase fill out the fat rate and improve lubricated effect, the design of lightweight simultaneously still can guarantee accurate starting torque, guarantee revolving stage angle of revolution's precision, improve cutting accuracy.

Drawings

Fig. 1 is a front view of a structure (a combined unit formed in the form of a single pocket) according to an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a side view of fig. 2.

FIG. 4 is a cross-sectional view of the barrier block pocket of FIG. 1 as it slopes toward the outer diameter of the cage.

FIG. 5 is a cross-sectional view of the barrier block pocket of FIG. 1 angled toward the inner diameter of the frame body.

FIG. 6 is an assembly diagram of one embodiment of the present invention.

In the figure, the device comprises a frame body structure 1, a frame body structure 2, a separation block monomer 3, a cylindrical roller 4, a convex block 5 and a groove.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1-6, a cross cylindrical roller bearing isolation block is a combined unit formed by a plurality of isolation block monomers 1, and the combined unit encloses to form a circumferential frame body structure 1; the plurality of isolation block monomers 2 are adjacent and movably connected with each other; the isolating block single bodies 2 are respectively provided with inclined pocket holes which are divided into two forms of inclination angles towards the inner diameter of the frame body and inclination angles towards the outer diameter of the frame body;

the combined unit formed by a plurality of isolation block monomers 1 comprises: a single-pocket formed combination unit, a single-double-pocket formed combination unit, or a multi-pocket formed combination unit;

the inclined pockets of the isolation block single bodies 2 are 45 degrees;

the inclined pocket part of the isolation block single body 2 is arranged by protruding the cross section beam;

in the embodiment, the combined unit is formed in a single-pocket form, the inclined pockets of the plurality of the isolated block single bodies 2 in the combined unit formed in the single-pocket form are arranged in a crossed manner, and every two adjacent inclined pockets are arranged at an angle of 90 degrees;

the joints of the two ends of the isolation block single bodies 2 are movably connected through buckles;

a convex block 4 is arranged on one side end face of each isolation block single body 2, and a groove 5 matched with the convex block 4 is arranged on the other side end face; a plurality of isolation block single bodies 2 form a whole combined unit through the matching connection of the convex blocks 4 and the grooves 5.

As another embodiment structure of the present invention, a plurality of barrier block single bodies 2 in a combined unit formed in a single-dual pocket form are arranged in a single-pocket and a dual-pocket form, and the inclination angles of the single pocket and the dual pocket are opposite;

the inclination angles of two pockets in each double pocket are identical.

As a third embodiment structure of the present invention, a plurality of barrier block single bodies 2 in a combined unit formed in a multi-pocket form are arranged in a unit form of a plurality of pockets and an inclination angle of the pocket of each unit is arranged to cross the inclination angle of the pocket of each unit at 90 degrees;

the inclination angles of the plurality of pockets of each unit are uniform.

In each of the above embodiments, the plurality of spacer blocks 2 are made of PA12 material, so as to achieve light weight.

All other embodiments, which can be derived by a person skilled in the art from the above-described embodiments of the utility model without any inventive step, are within the scope of the utility model.

Claims (8)

1. The utility model provides a cross cylindrical roller bearing spacing block which characterized in that: the combined units are formed by a plurality of isolation block monomers and form a circumferential frame body structure in a surrounding manner; the plurality of isolation block monomers are adjacent and movably connected with each other; a plurality of the spacing block monomer is equipped with the slope pocket hole respectively, and the slope pocket hole divide into to support body internal diameter inclination and to two kinds of forms of support body external diameter inclination.

2. The crossed cylindrical roller bearing spacer of claim 1, wherein: the combined unit formed by a plurality of isolation block monomers comprises: a single pocket formed combination unit, a single double pocket formed combination unit, or a multi-pocket formed combination unit.

3. The crossed cylindrical roller bearing spacer of claim 2, wherein: the inclined pockets of the isolation block monomers are 45 degrees.

4. The crossed cylindrical roller bearing spacer of claim 2, wherein: the inclined pocket part of the single isolating block is arranged to protrude out of the cross-section beam.

5. The crossed cylindrical roller bearing spacer of claim 2, wherein: the inclined pockets of the single spacers in the combined unit formed in the form of a single pocket are arranged in a cross manner and each adjacent two inclined pockets are formed at 90 degrees.

6. The crossed cylindrical roller bearing spacer of claim 2, wherein: a plurality of single isolating blocks in the combined unit formed in the single-double-pocket mode are arranged in the single-pocket mode and the double-pocket mode, and the inclination angle of the single pocket is opposite to that of the double pockets.

7. The crossed cylindrical roller bearing spacer of claim 2, wherein: a plurality of barrier blocks in a combined unit formed in a multi-pocket form are arranged in a unit form of a plurality of pockets and the inclination angle of the pocket of each unit are arranged in a 90-degree cross.

8. The crossed cylindrical roller bearing spacer of claim 1, wherein: the joints of the two ends of the isolation block monomers are movably connected through buckles.

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