CN206280374U - A kind of full ball roller bearing - Google Patents

Abstract

The utility model relates to a full-ball roller bearing, which includes an outer ring and an inner ring, and steel balls are filled around the circumference of the inner ring between the inner ring and the outer ring, and is characterized in that: the inner ring includes The first inner ring body and the second inner ring body are arranged one behind the other in the axial direction of the ring, the first inner ring body and the second inner ring body are in conflict, and the first inner ring body and the second inner ring body are also pierced with lining sleeve, the inner walls of the first inner ring body and the second inner ring body are in interference fit with the outer wall of the bushing, and the opposite end surfaces of the first inner ring body and the second inner ring body are respectively provided with first The groove, the second groove, the first groove and the second groove form an annular inner groove for placing steel balls, the inner ring surface of the outer ring is provided with an annular outer groove, and the steel ball It is located between the inner groove and the outer groove. By adopting the above technical solution, the utility model provides a full-spherical roller bearing, which can not only bear a relatively large load and a certain impact, but also can bear a certain axial load and overturning moment.

Description

A full ball roller bearing

technical field

The utility model relates to the field of bearings, in particular to a full-spherical roller bearing.

Background technique

At present, roller bearings are mostly used in the joints or link parts of some conveying devices, because the bearings used in this part are required to withstand large loads and certain impacts.

Usually, a notch is opened on the inner and outer rings of the bearing, and the raceway is filled with steel balls through the notch to increase the bearing capacity, but the bearing's ability to carry axial load and withstand overturning moment is limited after the notch is opened.

Contents of the invention

The purpose of this utility model: In order to overcome the defects of the prior art, the utility model provides a full-spherical roller bearing, which can not only bear a relatively large load and a certain impact, but also can bear a certain axial load and overturning moment .

The technical scheme of the utility model: a full-ball roller bearing, including an outer ring and an inner ring, and the circumference of the inner ring between the inner ring and the outer ring is covered with steel balls, which is characterized in that: the inner ring includes There are a first inner ring body and a second inner ring body arranged one behind the other along the axial direction of the outer ring. A bushing is provided, the inner walls of the first inner ring body and the second inner ring body are in interference fit with the outer wall of the bushing, and the opposite end surfaces of the first inner ring body and the second inner ring body are respectively provided with There are a first groove and a second groove, the first groove and the second groove form an annular inner groove for placing steel balls, the inner ring surface of the outer ring is provided with an annular outer groove, the The steel balls are located between the inner groove and the outer groove.

Using the above technical scheme, the inner ring is divided into the first inner ring body and the second inner ring body and covered with steel balls, so that the bearing can withstand a large load and a certain impact; the set bush can The first inner ring body, the second inner ring body, the outer ring and other components are connected into one body to increase its axial load bearing capacity and overturning moment.

Further setting of the utility model: the outer ring surface of the outer ring is a spherical surface, the bushing includes a first sleeve body and a second sleeve body integrally arranged, the first sleeve body is arranged on the second sleeve body At the front end, the first sleeve body and the second sleeve body are arranged coaxially, the outer diameter of the first sleeve body is smaller than the outer diameter of the second sleeve body, and the first inner ring body and the second inner ring body are sleeved on the first sleeve body , the second inner ring body is in conflict with the end face of the second sleeve body.

With the above further settings, the second sleeve can not only limit the position of the first inner ring body and the second inner ring body, but also ensure the axial freedom of the outer ring of the bearing after installation. Combined with its spherical outer diameter, it has a certain Self-aligning function, can withstand a certain overturning moment.

A further setting of the present invention is: the inner diameter of the inner hole of the bush gradually becomes smaller from the front end to the rear end.

With the above-mentioned further setting, this inner hole setting method can not only facilitate the insertion of bolts and other accessories from the front side, and facilitate installation; it can also make the accessories and the rear side of the inner hole tightly fitted after installation, and the connection is firm.

The utility model further provides: the inner wall of the first sleeve is provided with an annular groove, and an elastic pad is embedded in the annular groove.

With the above further setting, due to the large gap between the front end of the inner hole of the bushing and the accessories, the elastic pad provided can make the tension between the inner wall of the front end of the inner hole of the bushing and the accessories, and improve the connection between the bearing and the accessories. performance.

The utility model has a further setting: the first groove and the second groove are arranged obliquely to form a "V"-shaped annular inner groove, and the outer groove is arc-shaped.

With the above-mentioned further setting, this inner groove setting method can provide a certain thrust, so that the steel ball is stable and not easy to fall off; this kind of outer groove setting method can reduce the wear between it and the steel ball, prolong the The life of the steel ball.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the utility model;

Fig. 2 is a structural diagram of a bushing in a specific embodiment of the present invention.

detailed description

As shown in Figures 1 and 2, a full-ball roller bearing includes an outer ring 1 and an inner ring 2, and the inner ring 2 and the outer ring 1 are covered with steel balls 3 around the circumference of the inner ring 2. The inner ring 2 includes a first inner ring body 21 and a second inner ring body 22 arranged one behind the other along the axial direction of the outer ring 1, the first inner ring body 21 and the second inner ring body 22 are in conflict, the first inner ring body The bushing 4 is also pierced inside the body 21 and the second inner ring body 22. The inner walls of the first inner ring body 21 and the second inner ring body 22 are in interference fit with the outer wall of the bushing 4. The opposite end surfaces of an inner ring body 21 and a second inner ring body 22 are respectively provided with a first groove 211 and a second groove 221, and the first groove 211 and the second groove 221 form an annular ring for placing the steel ball 3. Inner groove 5 , an annular outer groove 6 is provided on the inner ring surface of the outer ring 1 , and the steel ball 3 is located between the inner groove 5 and the outer groove 6 . In the specific embodiment of the utility model, the outer ring surface of the outer ring 1 is a spherical surface 11, and the bushing 4 includes a first sleeve body 41 and a second sleeve body 42 integrally arranged. The first sleeve body 41 It is arranged at the front end of the second sleeve body 42, the first sleeve body 41 and the second sleeve body 42 are arranged coaxially, the outer diameter of the first sleeve body 41 is smaller than the outer diameter of the second sleeve body 42, the first inner ring body 21, The second inner ring body 22 is sheathed on the first sleeve body 41 , and the second inner ring body 22 interferes with the end surface of the second sleeve body 42 . Wherein, the inner diameter of the inner hole 43 of the bushing 4 gradually decreases from the front end to the rear end. This way of setting the inner hole can not only facilitate the insertion of bolts and other accessories from the front side, but also facilitate the installation; after installation, the accessories and the rear side of the inner hole 43 can be tensioned and fit, and the connection is firm. The inner wall of the first casing 41 is provided with an annular groove 411 , and the elastic pad 7 is embedded in the annular groove 411 . Due to the large gap between the front end of the inner hole of the bushing 4 and the accessories, the elastic pad 7 provided can make tension between the inner wall of the front end of the inner hole of the bushing 4 and the accessories, and improve the connection performance between the bearing and the accessories. The inner ring 2 is divided into the first inner ring body 21 and the second inner ring body 22, which are covered with steel balls 3, so that the bearing can withstand a large load and a certain impact; the set bushing 4 can Connect the first inner ring body 21, the second inner ring body 22, the outer ring 1 and other parts into one body to improve its axial load bearing capacity; the second sleeve body 42 can be used for the first inner ring body 21, the second The inner ring body 22 acts as a limiter, and can ensure the axial freedom of the bearing outer ring 1 after installation. Combined with its spherical outer diameter, it has a certain centering function and can withstand a certain overturning moment.

The first groove 211 and the second groove 221 described in the specific embodiment of the utility model are both obliquely arranged to form a "V"-shaped annular inner groove 5, and the outer groove 6 is arc-shaped. This arrangement of the inner groove 5 can provide a certain thrust, so that the steel ball 3 is stable and not easy to fall off; this arrangement of the outer groove 6 can reduce the wear between it and the steel ball 3 and extend the length of the steel ball 3. lifespan.

Claims (5)

1. a kind of full ball roller bearing, includes outer ring, inner ring, and inner ring is covered with steel ball with the circumference of the spaced winding inner ring of outer ring, its It is characterised by：Described inner ring includes the first inner ring body, the second inner ring body axially one in front and one in back set along outer ring, in first Circle body and the second inner ring body are contradicted, and are also equipped with bushing in the first inner ring body, the second inner ring body, described the first inner ring body, the The inwall of two inner ring bodies and the outer wall interference fit of bushing, on described the first inner ring body, the opposing end surface of the second inner ring body point The first groove, the second groove are not provided with, and the first groove and the second groove form the annular internal channel placed for steel ball, and described is outer The inner ring surface of circle is provided with circumferential external groove, and described steel ball is located between internal channel and outer channel.

It is 2. according to claim 1 to expire ball roller bearing, it is characterised in that：The outer ring surface of described outer ring is sphere, institute The bushing stated includes the first body, the second body being wholely set, and the first body is arranged on the front end of the second body, first set Body is coaxially disposed with the second body, the external diameter of the external diameter less than the second body of the first body, the first inner ring body, the second inner ring body set It is located on the first body, the end face of the second inner ring body and the second body is contradicted.

It is 3. according to claim 2 to expire ball roller bearing, it is characterised in that：The internal diameter of the endoporus of described bushing is by front side Hold and tapered into rear side end.

It is 4. according to claim 3 to expire ball roller bearing, it is characterised in that：Wall is provided with annular in described first set body Groove, cushion is embedded with described annular groove.

5. the full ball roller bearing according to claim 1 or 2 or 3 or 4, it is characterised in that：Described the first groove, second Groove is obliquely installed the annular internal channel to form " V " font, and described outer channel is arc shape.