CN217502289U

CN217502289U - Conical hole self-aligning roller bearing

Info

Publication number: CN217502289U
Application number: CN202221327216.5U
Authority: CN
Inventors: 陈世友; 姜秀杰; 韩其珊; 岳超; 陈世胜
Original assignee: Dalian Metallurgy and Bearings Co Ltd
Current assignee: Dalian Metallurgy and Bearings Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-27
Anticipated expiration: 2032-05-30

Abstract

The utility model relates to a taper hole self-aligning roller bearing, including outer lane, inner circle and rolling element, the inner circle is provided with interior taper hole, is provided with a plurality of slotted holes on the path terminal surface of interior taper hole, install compression spring in the slotted hole, compression spring compressible in the slotted hole. It can prevent that the pressure disk screw from becoming flexible through set up compression spring in the slotted hole to guarantee bearing axial positioning's stability, improve life.

Description

Conical bore self-aligning roller bearing

Technical Field

The utility model relates to a bearing technical field especially relates to a taper hole self-aligning roller bearing.

Background

When the equipment modification of the tapered hole self-aligning roller bearing is installed, after the inner diameter of the bearing and the outer diameter of the shaft generate interference fit, the fit surface of the bearing shaft ring and the shaft needs to be increased in a radial interference fit mode, after the end face of the bearing inner ring is matched with an equipment pressure plate, the phenomenon that the temperature of the bearing is increased when the bearing works for a period of time is generated, the phenomenon that the inner diameter of the bearing inner ring is increased and the interference fit of the shaft is gradually reduced, at the moment, a pressure plate screw starts to loosen, the whole bearing generates axial displacement, and therefore the service life of the bearing and the equipment is reduced. If the bearing equipment needs to be adjusted from the new state, the bearing equipment is influenced and even scrapped.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circular cone hole self-aligning roller bearing to solve the problem that provides in the above-mentioned background art.

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

a conical hole self-aligning roller bearing comprises an outer ring, an inner ring and a rolling body, wherein the inner ring is provided with an inner conical hole, a plurality of slotted holes are formed in the small-diameter end face of the inner conical hole, compression springs are installed in the slotted holes, and the compression springs can be compressed in the slotted holes.

Furthermore, the number of the slotted holes is four, the four slotted holes are uniformly distributed on the small-diameter end face of the inner taper hole in the circumferential direction, and a compression spring is installed in each slotted hole.

Furthermore, at least one key groove is formed in the small-diameter end face of the inner taper hole.

Furthermore, the number of the key grooves is three, and the three key grooves are evenly distributed on the small-diameter end face of the inner taper hole in the circumferential direction.

Further, the key slot is a planar key slot.

The rolling bearing further comprises a retainer, wherein the rolling bodies are arranged in two rows, and the two rows of rolling bodies are arranged between the inner ring and the outer ring in a rolling way through the retainer.

Furthermore, the rolling bodies are drum-shaped rollers, and the outer ring and the inner ring are both provided with roller paths matched with the drum-shaped rollers.

Compared with the prior art, the utility model beneficial effect be:

the utility model provides a pair of circular cone hole self-aligning roller bearing, including outer lane, inner circle and rolling element, the inner circle is provided with interior taper hole, is provided with a plurality of slotted holes on the path terminal surface of interior taper hole, install compression spring in the slotted hole, compression spring compressible in the slotted hole. It can prevent that the pressure disk screw from becoming flexible through set up compression spring in the slotted hole to guarantee bearing axial positioning's stability, improve life.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. the device comprises an outer ring, 2, an inner ring, 3, a rolling body, 4, a retainer, 5, a slotted hole, 6, a compression spring, 7 and a key groove.

Detailed Description

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

Example 1

As shown in fig. 1, a tapered-bore self-aligning roller bearing includes an outer ring 1, an inner ring 2, two rows of rolling elements 3, and a cage 4, wherein the two rows of rolling elements 3 are rollably mounted between the inner ring 2 and the outer ring 1 via the cage 4. Preferably, the rolling elements 3 are drum-shaped rollers, and the outer ring 1 and the inner ring 2 are provided with raceways matched with the drum-shaped rollers. The two ends of the inner ring raceway of the embodiment are provided with outer flanges.

The inner ring 2 is provided with an inner taper hole, a plurality of slotted holes 5 are uniformly distributed on the small-diameter end face of the inner taper hole in a circumferential mode, preferably, the number of the slotted holes 5 is four, the four slotted holes 5 are uniformly distributed on the small-diameter end face of the inner taper hole in a circumferential mode, and a compression spring 6 is mounted in each slotted hole 5. When the compression spring pressing device is used, the compression spring 6 is pressed and contracted in the slotted hole 5 by the pressing plate, namely, one end of the compression spring 6 is pressed against the pressing plate, and the other end is pressed against the bottom of the slotted hole 5.

It should be noted that, the compression spring 6 is arranged in the slot 5 to prevent the screw of the pressure plate from loosening, so as to ensure the stability of the axial positioning of the bearing and prolong the service life.

This embodiment still is provided with at least one keyway 7 in order to improve conical bore self-aligning roller bearing radial positioning's stability in the minor diameter terminal surface of interior conical bore, and is preferred, keyway 7 be three

plane keyway

7, and 7 circumference equipartitions in the minor diameter terminal surface of interior conical bore of three keyway. When the self-aligning roller bearing is used, the three plane key grooves 7 on the small end surface of the inner taper hole are in key connection with the key grooves correspondingly formed in the outer diameter of the shaft, and the stability of the inner ring 2 of the self-aligning roller bearing with the shaft in the radial direction is guaranteed, so that the service life is prolonged.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "top", "middle", "one end", "the other end", "both ends", "up", "down", "one side", "the other side", "inside", "outside", "front", "center", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a circular cone hole self-aligning roller bearing, includes outer lane, inner circle and rolling element, its characterized in that: the inner ring is provided with an inner taper hole, a plurality of slotted holes are formed in the small-diameter end face of the inner taper hole, a compression spring is installed in each slotted hole, and the compression spring can be compressed in the slotted holes.

2. The tapered bore self-aligning roller bearing according to claim 1, wherein: the number of the slotted holes is four, the four slotted holes are uniformly distributed on the small-diameter end face of the inner taper hole in the circumferential direction, and the compression spring is installed in each slotted hole.

3. The tapered bore self-aligning roller bearing according to claim 1, wherein: at least one key groove is further arranged on the small-diameter end face of the inner taper hole.

4. The tapered bore self-aligning roller bearing according to claim 3, wherein: the number of the key grooves is three, and the three key grooves are evenly distributed on the small-diameter end face of the inner taper hole in the circumferential direction.

5. The tapered bore self-aligning roller bearing according to claim 3 or 4, wherein: the key slot is a planar key slot.

6. The tapered bore self-aligning roller bearing according to claim 1, wherein: the rolling bearing further comprises a retainer, wherein the number of the rolling bodies is two, and the two rows of the rolling bodies are assembled between the inner ring and the outer ring in a rolling mode through the retainer.

7. The tapered bore self-aligning roller bearing according to claim 1 or 6, wherein: the rolling bodies are drum-shaped rollers, and the outer ring and the inner ring are both provided with roller paths matched with the drum-shaped rollers.