CN110985535A

CN110985535A - Novel centrifugal self-aligning roller bearing

Info

Publication number: CN110985535A
Application number: CN201911353889.0A
Authority: CN
Inventors: 贾方益
Original assignee: 贾方益
Current assignee: Shandong Huagong Bearing Co., Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-10
Anticipated expiration: 2039-12-25
Also published as: CN110985535B

Abstract

The invention relates to the technical field of bearing mechanisms and discloses a novel centrifugal self-aligning roller bearing which comprises a bearing outer ring, wherein the bearing outer ring is provided with a left group and a right group, and the inner wall of the bearing outer ring is in rolling connection with a sliding groove on the outer surface of a bearing inner ring through a rotating roller. This novel centrifugal self-aligning roller bearing, through the bearing inner race, the setting of rotation roller and bearing inner race, utilize the bearing inner race to drive the rotation roller along the spout of bearing inner race to the outside removal when the high-speed rotation of pivot produced centrifugal force, make the rotation roller can provide sufficient holding power for the bearing inner race all the time, when the pivot appears eccentric motion because of installation error or rich song, make the bearing inner race can rotate and can not appear the phenomenon of excessive wear with great turning radius between two sets of rotation rollers, the effectual life who prolongs this roller bearing, the produced vibration and the noise of this roller bearing when the operation have been reduced simultaneously.

Description

Novel centrifugal self-aligning roller bearing

Technical Field

The invention relates to the technical field of bearing mechanisms, in particular to a novel centrifugal self-aligning roller bearing.

Background

The self-aligning roller bearing is a bearing with an inner ring provided with two raceways, the inner ring is inclined to form an angle relative to the axis of the bearing, and an outer ring provided with a common spherical raceway, so that the inner ring is not easy to be subjected to eccentric motion caused by installation error of a rotating shaft or bending of the rotating shaft when rotating, and the self-aligning roller bearing has a function of adjusting a rotating center.

Disclosure of Invention

Technical problem to be solved

The invention provides a novel centrifugal self-aligning roller bearing, which has the advantages of larger self-aligning angle, applicability to rotating shafts with higher rotating speed, smaller vibration and noise and higher stability, and solves the problems that the prior self-aligning roller bearing realizes the mode of adjusting the rotating center through the rotary swing of an inner ring, so that the self-aligning angle of the self-aligning roller bearing is smaller, the self-aligning roller bearing can only be suitable for the working condition with lower rotating speed, and meanwhile, the prior self-aligning roller bearing can only adjust the rotating shafts on the same central line in the rotary swing adjusting mode and can not adjust the rotating shafts in an eccentric motion state.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides a novel centrifugal self-aligning roller bearing, includes bearing inner race, rotation roller, bearing inner race and tension pin pole, bearing inner race is equipped with about two sets ofly, and controls and pass through tension pin pole fixed connection between two sets of bearing inner races, bearing inner race's inner wall is through rotating the spout roll connection on roller and the bearing inner race surface.

Preferably, the bearing outer ring comprises an outer ring shaft body, the inner wall of the outer ring shaft body is a conical sector with an inclination angle of 157 degrees, and three groups of outer wall clamping grooves are uniformly formed in the outer surface of the outer ring shaft body.

Preferably, the left side and the right side of the bearing inner ring are both provided with a conical structure with an inclination angle of 160 degrees, sliding grooves are uniformly arranged on the surface of the conical structure, and the inner walls of the sliding grooves are in rolling connection with the conical sector through rotating rollers.

Preferably, the pressure springs are arranged in the middle of the outer surface of the tension pin rod and between the two groups of outer ring shaft bodies, and the compression degrees of all the pressure springs are the same.

(III) advantageous effects

The invention has the following beneficial effects:

1. this novel centrifugal self-aligning roller bearing, through the bearing inner race, the setting of rotation roller and bearing inner race, utilize the bearing inner race to drive the rotation roller along the spout of bearing inner race to the outside removal when the high-speed rotation of pivot produced centrifugal force, make the rotation roller can provide sufficient holding power for the bearing inner race all the time, when the eccentric motion appears because of installation error or rich song in the pivot, make the bearing inner race can rotate and can not appear the phenomenon of excessive wear with great turning radius between two sets of rotation rollers, the effectual life who prolongs this roller bearing, the produced vibration and the noise of this roller bearing when high-speed operation have been reduced simultaneously.

2. This novel centrifugal self-aligning roller bearing, to conical sector inclination and bearing inner race both sides inclination's setting, make the bearing inner race when rotating along with the high-speed eccentric of pivot, drive that can be timely rotates the roller upwards or downstream, with the clearance between timely filling conical sector and the bearing inner race and for it provides effectual holding power, and the rotational speed along with the pivot is higher, its centrifugal force to rotating the roller thereupon and also just also big, stability will be higher, this roller bearing also can rotate the relative position relation of roller through adjustment bearing inner race both sides simultaneously, make the bearing inner race can be along with the pivot and take place rotatory swing with its center, and then effectual this centrifugal roller bearing's of improvement regulating capacity.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a cross-sectional view at A-A of the present invention;

FIG. 4 is a schematic structural view of a bearing outer race of the present invention;

FIG. 5 is a schematic structural diagram of the bearing inner race of the present invention;

fig. 6 is a front view of the bearing inner race of the structure of the present invention.

In the figure: 1. a bearing outer race; 11. an outer ring shaft body; 12. a conical sector; 13. an outer wall clamping groove; 2. rotating the roller; 3. a bearing inner race; 4. a tension pin rod.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a novel centrifugal self-aligning roller bearing includes a bearing outer ring 1, a rotating roller 2, a bearing inner ring 3 and a tension pin rod 4, the bearing outer ring 1 has a left group and a right group, the left group and the right group of the bearing outer ring 1 are fixedly connected through the tension pin rod 4, and the inner wall of the bearing outer ring 1 is in rolling connection with a sliding groove on the outer surface of the bearing inner ring 3 through the rotating roller 2.

Wherein, to the setting of rotating roller 2, utilize the centrifugal force that bearing inner race 3 produced when high-speed rotation to drive and rotate roller 2 and move to the outside to fill the clearance between two sets of rotating roller 2 and the bearing inner race 3, when the eccentric motion appears because of installation error or bent when the pivot, make bearing inner race 3 can rotate and can not appear the phenomenon of excessive wear with great turning radius between two sets of rotating roller 2, and then the effectual life who prolongs this roller bearing, reduced the produced vibration and the noise of this roller bearing when the operation simultaneously.

In this technical scheme, bearing inner race 1 includes outer lane axis body 11, and the inner wall of outer lane axis body 11 is established to the toper sector 12 that inclination is 157, and is equipped with three outer wall draw-in grooves 13 of group in the surface of outer lane axis body 11 is even.

The arrangement of the tapered sectors 12 and the inclination angles thereof enables the bearing inner ring 3 to have a large enough gap between the two sets of outer ring shaft bodies 11, so that the bearing inner ring 3 has a large enough rotation radius during eccentric motion, and simultaneously the gap between the two sets of tapered sectors 12 and the bearing inner ring 3 can be adjusted by changing the inclination angles of the tapered sectors 12 and the bearing inner ring 3 or rotating the diameter of the roller 2, so that the eccentric adjustment range of the roller bearing can be improved, and the application range of the self-aligning roller bearing is enlarged.

Wherein, to the setting of outer wall draw-in groove 13, can the dustproof cover plate of joint on the outside of two sets of outer lane axis bodies 11 to prevent that this roller bearing from getting into wherein at impurity such as the outside dust of in-process of using, and the phenomenon that causes wearing and tearing to rotating roller 2.

In the technical scheme, the left side and the right side of the bearing inner ring 3 are both provided with a conical structure with an inclination angle of 160 degrees, the surface of the conical structure is uniformly provided with a sliding chute, and the inner wall of the sliding chute is in rolling connection with the conical sector 12 through the rotating roller 2.

Wherein, the arrangement of the bearing inner ring 3 and the sliding grooves at the two sides thereof is matched with the arrangement of the conical sector 12, so that the clearance between the inner wall of the conical sector 12 and the outer wall of the bearing inner ring 3 is of a gradually-changed structure, meanwhile, through the arrangement of the sliding chute, the rotating roller 2 can only move along the direction of the sliding chute when being subjected to the action of centrifugal force, when the bearing inner ring 3 rotates eccentrically at high speed, the rotating roller 2 can always keep contact with the inner wall of the conical sector 12 and provide effective supporting force, to ensure that the bearing inner ring 3 can keep rotating in the same plane when rotating with the rotating shaft at high speed, meanwhile, the roller bearing can adjust the relative position relationship of the rollers 2 on two sides of the bearing inner ring 3, the bearing inner ring 3 can rotate and swing along with the rotating shaft and the center of the rotating shaft, and the adjusting capacity of the centrifugal roller bearing is effectively improved.

In this technical scheme, the middle part of 4 surfaces of tension pin pole just is located and is equipped with pressure spring between two sets of outer lane axis bodies 11, and all pressure spring's pressurized degree is the same.

Wherein, to the setting of tension pin pole 4 for pressure spring wherein can provide outside pressure for two sets of outer lane axis body 11 respectively, form the auto-lock to the nut in tension pin pole 4 both sides, cause this roller bearing tension pin pole 4 can not take place not hard up at long-term high-speed pivoted in-process, in order to ensure that the clearance between two sets of conical sector 12 and the bearing inner race 3 can not change, make the pressure that the bearing inner race 3 both sides received the same, further improvement this roller bearing stability and reliability when high-speed rotation.

The use method and the working principle of the embodiment are as follows:

firstly, a torque wrench is utilized to rotate a tension pin rod 4 and nuts which are positioned at the outer sides of two groups of outer ring shaft bodies 11, so that pressure springs borne by the tension pin rod 4 keep the same pressure, all rotating rollers 2 are ensured to be positioned at the middle positions of sliding grooves on a bearing inner ring 3, then the inner wall of a bearing inner ring 3 in the centrifugal roller bearing is fixedly installed with a rotating shaft and rotates at a high speed, so that the rotating rollers 2 move outwards along the sliding grooves on the bearing inner ring 3 under the action of centrifugal force and contact with the inner walls of two groups of conical sectors 12 to provide effective supporting force for the rotating rollers, when the rotating shaft generates eccentric motion due to installation error or bending, the rotating rollers 2 on the sliding grooves of the bearing inner ring 3 always have the tendency of moving outwards under the action of centrifugal force, and when the rotating rollers 2 move upwards, the gap between the upper parts of the rotating rollers and the bearing inner ring 3 becomes smaller, at this time, the rotating rollers 2 move inwards under the extrusion of the two groups of conical sectors 12, and when the gap between the lower part of the rotating rollers 2 and the bearing inner ring 3 is reduced due to the upward movement of the rotating rollers 2, the rotating rollers 2 move downwards under the action of centrifugal force, so that the rotating rollers always keep in a contact state with the conical sectors 12 and the bearing inner ring 3, and provide supporting force for the rotating rollers to ensure that the rotating rollers can rotate in the same plane, and meanwhile, the roller bearing can enable the bearing inner ring 3 to rotate and swing along with the rotating shaft and the center of the rotating rollers by adjusting the relative position relation of the rotating rollers 2 on the two sides of the bearing inner ring 3, so that the aligning capability of the centrifugal roller bearing at a high rotating speed is effectively improved, and the excessive wear caused by the eccentric movement of the rotating shaft is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel centrifugal self-aligning roller bearing, includes bearing inner race (1), rotates roller (2), bearing inner race (3) and tension pin pole (4), its characterized in that: the bearing inner race (1) is provided with a left group and a right group, the left group and the right group of the bearing inner race (1) are fixedly connected through a tension pin rod (4), and the inner wall of the bearing inner race (1) is in rolling connection with a sliding groove on the outer surface of the bearing inner race (3) through a rotating roller (2).

2. A novel centrifugal self-aligning roller bearing according to claim 1, characterized in that: the bearing outer ring (1) comprises an outer ring shaft body (11), the inner wall of the outer ring shaft body (11) is a conical sector (12) with an inclination angle of 157 degrees, and three groups of outer wall clamping grooves (13) are uniformly formed in the outer surface of the outer ring shaft body (11).

3. A novel centrifugal self-aligning roller bearing according to claim 1, characterized in that: the left side and the right side of the bearing inner ring (3) are both designed into conical structures with the inclination angle of 160 degrees, sliding grooves are uniformly formed in the surfaces of the conical structures, and meanwhile, the inner walls of the sliding grooves are in rolling connection with the conical sectors (12) through rotating rollers (2).

4. A novel centrifugal self-aligning roller bearing according to claim 1, characterized in that: and pressure springs are arranged in the middle of the outer surface of the tension pin rod (4) and between the two groups of outer ring shaft bodies (11), and the compression degrees of all the pressure springs are the same.