CN216789016U

CN216789016U - Bearing structure convenient to maintain

Info

Publication number: CN216789016U
Application number: CN202220056406.1U
Authority: CN
Inventors: 孙勇; 孙浩
Original assignee: Changzhou Yuhong Precision Bearing Co ltd
Current assignee: Changzhou Yuhong Precision Bearing Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-06-21
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to the technical field of bearing maintenance, in particular to a bearing structure convenient for maintenance, which solves the defects of narrow internal clearance after the bearing is produced, difficult replacement of worn balls and inconvenient maintenance, and reduced service life of the bearing, and comprises an outer ring and an inner ring, wherein balls are clamped between the outer ring and the inner ring, a retainer is clamped on the surface of each ball, a pressing plate is clamped on the outer side of the outer ring, a connecting block is welded on the inner side of the pressing plate, a block is welded at the bottom end of the connecting block, an installation hole is formed in the outer ring, a spring is arranged in the installation hole, a connecting rod is clamped on the inner side of the top of the spring, an ejector rod is welded at the top end of the connecting rod, a pulling plate is welded at the top of the pressing plate, an openable end cap is arranged on the outer ring of the bearing convenient for maintenance, the internal balls can be conveniently taken out after the end cap is opened, so that the clearance between the outer ring and the inner ring is increased, make things convenient for the bearing to dismantle, be convenient for change the inside wearing and tearing spheroid, effectively prolong bearing life.

Description

Bearing structure convenient to maintain

Technical Field

The utility model relates to the technical field of bearing maintenance, in particular to a bearing structure convenient to maintain.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the coefficient of friction in its motion to guarantee its gyration precision, early linear motion bearing form is that a row of wooden poles is put under a row of pinch plates. Modern linear motion bearings use the same principle of operation, except that balls are sometimes used instead of rollers. The simplest slew bearing is a sleeve bearing, which is simply a bushing sandwiched between the wheel and axle. This design was subsequently replaced by a rolling bearing, which replaced the original bushing with a number of cylindrical rollers, each of which acted as a separate wheel.

The number of revolutions or hours that a bearing experiences before pitting under a certain load, called bearing life, the life of a rolling bearing is defined in revolutions (or hours of operation at a certain rotational speed): a bearing within this life should have initial fatigue damage (flaking or chipping) on any of its bearing rings or rolling elements, however, whether in laboratory tests or in actual use, it is evident that the actual life of a bearing of the same appearance under the same operating conditions is very different. There are also several differently defined bearing "lives", one of which is the so-called "working life", which means that the actual life that a bearing can reach before it breaks down is due to wear, damage not usually being caused by fatigue, but by wear, corrosion, seal failure, etc.

In order to determine the standard of bearing life, the bearing life is related to the reliability, and due to the manufacturing precision and the difference of the uniformity degree of materials, the life of the same batch of bearings made of the same materials and having the same size is different under the same working condition. If the statistical life is 1 unit, the longest relative life is 4 units, the shortest is 0.1-0.2 units, the ratio of the longest to the shortest life is 20-40 times, 90% of the bearings do not generate pitting corrosion, and the number of revolutions or hours experienced is called the rated life of the bearing.

For guaranteeing bearing life, need add sufficient lubricating oil in its inside to after inside spheroid wearing and tearing, change the spheroid and can effectively increase bearing life, current bearing is using a certain time, just needs whole bearing to change after leading to inside spheroid wearing and tearing, and after the bearing production, its inner space is narrow and small, and the spheroid is difficult to take out, makes and maintains inconveniently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the service life of a bearing is shortened due to the fact that the internal clearance of the bearing is narrow after production, the worn ball is difficult to replace and inconvenient to maintain in the prior art, and the bearing structure convenient to maintain is provided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a convenient bearing structure who maintains, includes outer lane and inner circle, the outer lane reaches the card is equipped with the spheroid between the inner circle, spheroid surface card is equipped with the holder, and the card is equipped with the clamp plate in the outer lane outside, the inboard welding of clamp plate has the connecting block, the welding of connecting block bottom has the sprue, and the inside mounting hole of having seted up of outer lane, be provided with the spring in the mounting hole, the inboard card in spring top is equipped with the connecting rod, the welding of connecting rod top has the knockout pin, and the welding of clamp plate top has the arm-tie.

Preferably, the bottom of the block is provided with an arc matched with the inner side of the outer ring.

Preferably, the top of the blocking block is provided with a clamping block, and the top of the outer ring is provided with a clamping groove matched with the outer ring.

Preferably, the ejector rod is in contact with the lower surface of the top fixture block of the block.

Preferably, the pressure plate and the inner part of the outer ring are fixed through screws.

Preferably, a dustproof ring is clamped between the outer ring and the inner ring, and limiting grooves matched with the inner ring are arranged on the inner side of the outer ring and the outer side of the inner ring.

Preferably, the plug size is greater than the sphere size.

Preferably, the top of the spring is in contact with the bottom of the ejector rod.

Preferably, the surface of the pulling plate is provided with a pulling groove.

The utility model has the beneficial effects that:

1. the outer ring of the bearing convenient to maintain is provided with the openable plug, and the inner ball body is conveniently taken out after the plug is opened, so that the gap between the inner ring and the outer ring is enlarged, the bearing is convenient to disassemble, the inner worn ball body is convenient to replace, and the service life of the bearing is effectively prolonged;

2. this bearing end cap installation of convenient maintenance and take out the convenience, the installation has stop device, guarantees its bottom and the inboard laminating of outer lane, and the spring is automatic ejecting with the end cap when taking out, convenient operation.

Drawings

Fig. 1 is a schematic structural diagram of a bearing structure convenient for maintenance according to the present invention;

FIG. 2 is a schematic diagram of an outer race vertical cross-sectional structure of a bearing structure of the present invention, which is convenient for maintenance;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 2 of a bearing structure for facilitating maintenance according to the present invention.

In the figure: 1. an outer ring; 2. a sphere; 3. an inner ring; 4. a holder; 5. pressing a plate; 6. connecting blocks; 7. blocking; 8. mounting holes; 9. a spring; 10. a connecting rod; 11. ejecting the rod; 12. and (5) pulling the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a convenient bearing structure who maintains, including outer lane 1 and inner circle 3, the card is equipped with spheroid 2 between outer lane 1 and the

inner circle

3, 2 surface cards of spheroid are equipped with

holder

4, 1 outside cards of outer lane are equipped with

clamp plate

5, 5 inboard welding of clamp plate has connecting

block

6, 6 welding bottom of connecting block has sprue 7, 1 inside mounting hole 8 of having seted up of outer lane, be provided with spring 9 in the mounting hole 8, the inboard card in spring 9 top is equipped with connecting rod 10, the welding of 10 tops of connecting rod has

ejector pin

11, 5 welding tops of clamp plate has arm-tie 12.

The bottom of the plug 7 is provided with an arc matched with the inner side of the outer ring 1, the top of the plug 7 is provided with a clamping block, the top of the outer ring 1 is provided with a clamping groove matched with the clamping groove, the lower surface of the clamping block at the top of the plug 11 and the plug 7 is in contact, the pressing plate 5 is fixed with the inner part of the outer ring through screws, a dustproof ring is clamped between the outer ring 1 and the inner ring 3, the inner side of the outer ring 1 and the outer side of the inner ring 3 are provided with a limiting groove matched with the limiting groove, the size of the plug 7 is larger than that of the ball body 2, the top of the spring 9 is in contact with the bottom of the plug 11, and the surface of the pull plate 12 is provided with a pull groove.

In the embodiment, the bearing comprises an outer ring 1, an inner ring 3, a ball 2 and a retainer 4 clamped on the surface of the ball 2, a dustproof ring is clamped between the outer ring 1 and the inner ring 3 to prevent the interior of the bearing from being polluted by the outside, when the bearing is not operated smoothly and butter needs to be added or the ball 2 needs to be replaced, only the outer ring 1 needs to be separated from a connecting piece, then screws on the surface of a pressing plate 5 are loosened, at the moment, under the release of a spring 9, an ejector rod 11 ejects a distance out of a block 7, at the moment, a pull plate 12 extends out of the outer ring 1 to facilitate the extraction of the block 7, as the size of the block 7 is larger than that of the ball 2, mainly referred to as a projection area, the ball 2 can be conveniently taken out of a mounting groove of the block 7, so that the outer ring 1 and the inner ring 3 are loosened, the gap is enlarged, the bearing is convenient to disassemble, and the ball 2 does not need to be taken out if butter needs to be added, and directly injecting butter into the bearing from the mounting groove of the block 7.

Further, during the installation, fill in the mounting groove with sprue 7, twist the screw on 5 surfaces of clamp plate afterwards, at this moment ejector rod 11 receives the compression, and spring 9 pressurized shrink, connecting rod 10 mainly play the guide effect to spring 9, and until the fixture block at sprue 7 top and the inboard draw-in groove bottom laminating in outer lane 1 top, at this moment the lower surface and the 1 inboard cooperation in outer lane of sprue 7 avoid influencing the bearing normal rotation.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a bearing structure of convenient maintenance, includes outer lane (1) and inner circle (3), its characterized in that, outer lane (1) reaches the card is equipped with spheroid (2) between inner circle (3), spheroid (2) surface card is equipped with holder (4), and outer lane (1) outside card is equipped with clamp plate (5), the inboard welding of clamp plate (5) has connecting block (6), the welding of connecting block (6) bottom has sprue (7), and mounting hole (8) have been seted up to outer lane (1) inside, be provided with spring (9) in mounting hole (8), the inboard card in spring (9) top is equipped with connecting rod (10), the welding of connecting rod (10) top has liftout rod (11), and the welding of clamp plate (5) top has arm-tie (12).

2. A bearing construction facilitating maintenance according to claim 1, characterized in that the bottom of the block (7) is provided with a circular arc which fits inside the outer ring (1).

3. The bearing structure convenient to maintain according to claim 1, wherein a clamping block is arranged at the top of the blocking block (7), and a clamping groove matched with the top of the outer ring (1) is formed at the top of the outer ring.

4. A maintenance-friendly bearing structure according to claim 2, wherein the ejector rod (11) is in contact with the lower surface of the top block of the block (7).

5. A bearing structure convenient for maintenance according to claim 1, characterized in that the pressure plate (5) is fixed with the inside of the outer ring (1) by screws.

6. The bearing structure convenient for maintenance according to claim 1, wherein a dustproof ring is clamped between the outer ring (1) and the inner ring (3), and limiting grooves matched with the inner side of the outer ring (1) and the outer side of the inner ring (3) are arranged on the inner side of the outer ring (1).

7. A service friendly bearing arrangement according to claim 1, characterized in that the block (7) is larger in size than the ball (2).

8. A maintenance-friendly bearing arrangement according to claim 1, characterized in that the top of the spring (9) is in contact with the bottom of the ejector rod (11).

9. A bearing structure convenient for maintenance according to claim 1, wherein the surface of the pulling plate (12) is provided with a pulling groove.