CN210978230U

CN210978230U - Bearing easy to oil

Info

Publication number: CN210978230U
Application number: CN201921649294.5U
Authority: CN
Inventors: 许桂婵
Original assignee: Wafangdian Chengxin Jinggong Bearing Co ltd
Current assignee: Wafangdian Chengxin Jinggong Bearing Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-10
Anticipated expiration: 2029-09-30

Abstract

A bearing easy to oil belongs to the technical field of mechanical transmission. The bearing that easily refuels includes bearing inner race, holder and rolling element, bearing inner race and the coaxial setting of bearing inner race, bearing inner race and the relative surperficial correspondence of bearing inner race have seted up flutedly, the holder is arranged in between bearing inner race and the bearing inner race, the rolling element passes through the holder to be installed in the recess of bearing inner race and bearing inner race, bearing outer race and holder free rotation can be relatively moved to the rolling element, including the annular shield of circle, the shield is arranged in between the bearing inner race and the bearing inner race of bearing both ends face, and coaxial with bearing inner race and inner race, has seted up the oiling on the shield and has observed the hole, oiling observation hole department is provided with. Easily refuel bearing only needs to extract the shutoff of oiling observation hole department and can realize lubricated, easy operation is convenient refueling to the bearing.

Description

Bearing easy to oil

Technical Field

The utility model belongs to the technical field of mechanical transmission, especially, relate to an easily refuel bearing.

Background

The bearing is an important part in the modern mechanical equipment, and the main functions of the bearing are to support a mechanical rotating body and keep the center position of a shaft fixed, reduce the friction coefficient of the bearing in the motion process and ensure the rotation precision. However, the rolling bodies of many bearings are directly exposed to the outside, which may cause foreign matters to enter the bearings, affect the service life of the bearings, and may cause the rolling bodies to be worn or rusted due to lack of protection, so that the noise of the bearings during operation becomes loud. Therefore, most of the prior bearings are provided with a dust cover between the inner ring and the outer ring of the bearing to prevent foreign matters from entering. However, in the process of using the bearing, because the outer ring and the inner ring of the bearing can rotate at a high speed relative to the rolling body, in order to reduce the abrasion in the bearing, oil needs to be manually filled into the bearing for lubrication, and the dust cap needs to be disassembled and assembled every time the oil is filled for lubrication, which is very inconvenient.

Disclosure of Invention

To the problem that prior art exists, the utility model provides an easily refuel bearing.

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

the utility model provides an easily refuel bearing, includes bearing inner race, holder and rolling element, bearing inner race and the coaxial setting of bearing inner race, bearing inner race correspond on the surface relative with the bearing inner race and seted up flutedly, the holder is arranged in between bearing inner race and the bearing inner race, the rolling element passes through the holder to be installed in the recess of bearing inner race and bearing inner race, bearing outer race and holder free rotation can be relatively to the rolling element, still include the annular shield of circle, the shield is arranged in between the bearing inner race and the bearing inner race of bearing both ends face, and is coaxial with bearing inner race and inner race, has seted up the oiling on the shield and has observed the hole, oiling observation hole department is provided with.

And the dust caps on the two end faces of the bearing are provided with oil injection observation holes.

The dustproof cover is close to the joint of bearing inner race side in the bearing inner race, and the dustproof cover is close to the bearing inner race side and adopts lip type to seal, the sealed slope of lip type sets up, keeps certain distance with the dustproof cover inner race.

The overall dimension of the plugs on the two sides of the dust cover is larger than the diameter of the oil injection observation hole.

The plugging is made of rubber.

The utility model has the advantages that:

the utility model provides an easily refueled bearing, this bearing have seted up the oiling and have observed the hole on the shield at bearing both ends, when needs refuel lubricated to the bearing, only need with the oiling observe the shutoff of hole department extract can to can also observe the wearing and tearing condition of the inside holder of shield and rolling element through the oiling, refuel after observing only need arrange the shutoff again in the oiling observe the hole can, easy operation is convenient, improves work efficiency.

Drawings

FIG. 1 is a cross-sectional view of the easy-to-refuel bearing of the present invention;

FIG. 2 is a front view of the easy-to-oil bearing of the present invention;

in the figure: 1-bearing outer ring, 2-bearing inner ring, 3-retainer, 4-rolling body, 5-dust cap, 6-oil injection observation hole, 7-block and 8-lip type seal.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in figures 1 and 2, the bearing easy to oil belongs to the technical field of mechanical transmission, and can conveniently and efficiently finish maintenance operation of oil filling into the bearing.

The utility model discloses an easily refuel bearing, including bearing inner race 1, bearing inner race 2, holder 3 and rolling element 4, bearing inner race 1 and the coaxial setting of bearing inner race 2, bearing inner race 1 corresponds on the surface with bearing inner race 2 relatively and has seted up flutedly, holder 3 is arranged in between bearing inner race 1 and the bearing inner race 2, rolling element 4 passes through holder 3 and installs in bearing inner race 1 and bearing inner race 2's recess, rolling element 4 bearing inner race 2 relatively, bearing inner race 1 and holder 3 free rotation, rolling element 4 makes and realizes replacing sliding friction by rolling friction between bearing inner race 1 and the bearing inner race 2. Still include annular shield 5, shield 5 arranges bearing inner race 1 and bearing inner race 2 between the bearing inner race 2 of bearing both ends face in, and is coaxial with bearing inner race 1 and inner race 2, and shield 5 can prevent effectively that outside dust and debris from entering into inside the bearing, improves the life of bearing, also can avoid the bearing to throw away the grease that pours into in the bearing at high-speed operation in-process simultaneously because the effect of centrifugal force. Seted up the oiling on shield 5 and observed hole 6, through the oiling observe hole 6 can be simple and convenient to the bearing in the oiling, and need the loaded down with trivial details work of dismouting shield when having saved the oiling, simultaneously, can also observe the wearing and tearing condition of 5 inside holders 3 of shield and rolling element 4 through oiling observation hole 6. The oil injection observation hole 6 is provided with a plug 7, the plug 7 can keep a closed space between the dust cap 5 and the bearing after oil filling and maintenance observation, so that dust impurities are prevented from entering the oil injection observation hole 6, and meanwhile, grease in the bearing can be prevented from being thrown out through the oil injection observation hole 6.

The oiling observation hole 6 has all been seted up to shield 5 of bearing both ends face, can conveniently follow arbitrary one side of bearing to inside oiling, saves the loaded down with trivial details operation of distinguishing the face of refueling, also can carry out the oiling operation from the other one side of bearing when the inconvenient oiling operation of one side bearing end face simultaneously, accomplishes the maintenance work of bearing.

The dust cover 5 is close to the joint of the 1 side of the bearing outer ring in the bearing outer ring 1, the dust cover 5 can be effectively fixed in the joint, the dust cover 5 is prevented from being thrown out in the high-speed running process of the bearing, and meanwhile, the installation is convenient. The dustproof cover 5 is close to the bearing inner ring 2 side and adopts the lip seal 8, the lip seal 8 is obliquely arranged and keeps a certain distance with the dustproof cover inner ring, the lip seal 8 can effectively prevent outside dust sundries from entering the bearing, the root of the lip seal 8 keeps a certain distance with the inner ring of the dustproof cover 5, and the dustproof cover 5 can be detached easily from the end part of the inner ring when needing to be detached.

The overall dimension of the plug 7 on both sides of the dust cover 5 is larger than the diameter of the oil injection observation hole 6, the external dimension of the plug 7 on the dust cover 5 is larger than the diameter of the oil injection observation hole 6, and the plug 7 can be prevented from falling into the bearing; the size of the plug 7 in the dustproof cover 5 is larger than the diameter of the oil injection observation hole 6, so that the plug 7 can be prevented from being thrown out when the bearing runs at a high speed.

The plug 7 is made of rubber, the plug 7 is easy to detach and install due to the fact that the rubber is soft, meanwhile, the rubber has good sealing performance, and grease in the bearing can be prevented from leaking out of the oil injection observation hole 6.

The following describes a single operation process of the present invention with reference to the accompanying drawings.

When the bearing needs to be inspected and maintained, the plug 7 on one side of the bearing is firstly detached, then the bearing is manually rotated, the abrasion conditions of the retainer 3 and the rolling body 4 in the dust cover 5 are observed through the oil injection observation hole 6 while the bearing is rotated, oil is added into the bearing through the oil injection observation hole 6, and then the plug 7 is installed in the oil injection observation hole 6 again.

This can be repeated, if desired, at the dust cap 5 on the other side of the bearing.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A bearing easy to oil comprises a bearing outer ring, a bearing inner ring, a retainer and a rolling body, wherein the bearing outer ring and the bearing inner ring are coaxially arranged, the surface of the bearing outer ring opposite to the bearing inner ring is correspondingly provided with a groove, the retainer is arranged between the bearing outer ring and the bearing inner ring, the rolling body is arranged in the grooves of the bearing outer ring and the bearing inner ring through the retainer, the rolling body can freely rotate relative to the bearing inner ring, the bearing outer ring and the retainer, the bearing easy to oil is characterized by comprising a circular dustproof cover, the dustproof cover is arranged between the bearing outer ring and the bearing inner ring of two end faces of the bearing and is coaxial with the bearing outer ring and the bearing inner ring, an oil injection observation hole is arranged on the dustproof cover, a plug is arranged at the oil injection observation hole, the dustproof cover is clamped on the bearing outer ring side, the lip-shaped seal is obliquely arranged and keeps a certain distance from the inner ring of the dust cover.

2. The easy-to-refuel bearing of claim 1, wherein: and the dust caps on the two end faces of the bearing are provided with oil injection observation holes.

3. The easy-to-refuel bearing of claim 1, wherein: the overall dimension of the plugs on the two sides of the dust cover is larger than the diameter of the oil injection observation hole.

4. The easy-to-refuel bearing of claim 3, wherein: the plugging is made of rubber.