CN218118339U

CN218118339U - Self-aligning ball bearing

Info

Publication number: CN218118339U
Application number: CN202222556170.0U
Authority: CN
Inventors: 张煦; 燕萍; 庄权; 吴非; 陈同; 李爽; 尹洪涛; 李润峰; 柏宝晨; 高秀娥; 邹喜彦; 张昭; 宋涛; 张策
Original assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Current assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2022-12-23
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to a self-aligning ball bearing, including bearing inner race, bearing inner race and two spherical rolling elements, the coaxial cover of bearing inner race is established outside the bearing inner race, two the spherical rolling element can rolling install the bearing inner race with between the bearing inner race, the bearing inner race includes first half outer lane, second half outer lane and sets up first half outer lane with outer space ring between the second half outer lane, first half outer lane with second half outer lane all with the connection can be dismantled to outer space ring. It makes bearing assembly back inseparable, installs, stores and transports more easily with half first outer lane and half second outer lane and spacer detachable connection.

Description

Self-aligning ball bearing

Technical Field

The utility model relates to a bearing technical field especially relates to a self-aligning ball bearing.

Background

The large self-aligning ball bearing is provided with the double outer rings and the outer space ring, and the spherical rolling bodies are more, so that the bearing is easy to separate, and if the outer ring is designed to be one outer ring, the outer ring with the overlarge width dimension is easy to deform and is difficult to install in the machining process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a self-aligning ball bearing, its compact structure, the installation of being convenient for to prior art not enough.

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

the utility model provides a self-aligning ball bearing, includes bearing inner race, bearing inner race and two spherical rolling elements, and the coaxial cover of bearing inner race is established outside the bearing inner race, is two the spherical rolling element can rolling install the bearing inner race with between the bearing inner race, the bearing inner race includes first half outer lane, second half outer lane and sets up first half outer lane with outer space ring between the second half outer lane, first half outer lane with second half outer lane all with the connection can be dismantled to outer space ring.

Furthermore, the first half outer ring and the second half outer ring are detachably mounted on two sides of the outer space ring through bolts respectively.

Furthermore, through holes matched with the bolts are formed in the end faces of the first half outer ring and the second half outer ring, threaded holes matched with the bolts are formed in the two end faces of the outer space ring, and the threaded sections of the bolts penetrate through the through holes and are correspondingly screwed in the threaded holes.

Further, the first half outer ring and the second half outer ring are respectively positioned on two sides of the outer space ring through positioning pins.

Furthermore, the end faces of the first half outer ring and the second half outer ring are provided with first pin holes matched with the positioning pins, the two end faces of the outer space ring are provided with second pin holes matched with the positioning pins, and the positioning pins penetrate through the first pin holes and the second pin holes.

Further, the bolt is an inner hexagon bolt, and the positioning pin is a taper pin.

Furthermore, the bearing inner ring is integrally arranged, and two rows of inner raceways matched with the two rows of spherical rolling bodies are arranged on the outer peripheral surface of the bearing inner ring in parallel.

Further, the inner peripheral surface of the first half outer ring and the inner peripheral surface of the second half outer ring are both provided with concave spherical outer raceways with the same curvature radius.

The ball-shaped rolling body bearing comprises a bearing outer ring, a bearing inner ring and a retainer, wherein the retainer is positioned between the bearing outer ring and the bearing inner ring, and the two rows of ball-shaped rolling bodies are correspondingly arranged in pocket holes on the retainer.

The assembly process of the self-aligning ball bearing comprises the following steps:

the method comprises the steps of correspondingly installing two rows of spherical rolling bodies on two rows of inner raceways of a bearing inner ring through a retainer, correspondingly sleeving a first half outer ring, an outer spacer bush and a second half outer ring on the outer sides of the two rows of spherical rolling bodies in sequence, finally respectively positioning the first half outer ring and the second half outer ring on two sides of the outer spacer ring through two positioning pins, and respectively fixing the first half outer ring and the second half outer ring on two sides of the outer spacer ring through two bolts.

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

the utility model provides a pair of self-aligning ball bearing, including bearing inner race, bearing inner race and two spherical rolling elements, the coaxial cover of bearing inner race is established outside the bearing inner race, two the spherical rolling element can rolling install the bearing inner race with between the bearing is outer, the bearing inner race includes first half outer lane, second half outer lane and sets up first half outer lane with outer space ring between the second half outer lane, first half outer lane with second half outer lane all with the connection can be dismantled to outer space ring. It makes bearing assembly back inseparable, installs, stores and transports more easily with half first outer lane and half second outer lane and spacer detachable connection.

Drawings

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

In the figure: 1. the bearing comprises a bearing inner ring, 2, a bearing outer ring, 2.1, a first half outer ring, 2.2, a second half outer ring, 2.3, an outer spacing ring, 3, a spherical rolling body, 4, a retainer, 5, a bolt, 6, a through hole, 7, a threaded hole, 8 and a positioning pin.

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, the self-aligning ball bearing includes a bearing inner ring 1, a bearing outer ring 2, two rows of spherical rolling elements 3 and a retainer 4, wherein the retainer 4 is located between the bearing outer ring 2 and the bearing inner ring 1, the two rows of spherical rolling elements 3 are correspondingly installed in pockets on the retainer 4, and the two rows of spherical rolling elements 3 are rollably installed between the bearing inner ring 1 and the bearing outer ring through the retainer 4. The bearing inner ring 1 is integrally arranged, and inner raceways matched with the two rows of spherical rolling bodies 3 are arranged on the peripheral surface of the bearing inner ring 1 in parallel. The bearing outer ring 2 is coaxially sleeved outside the bearing inner ring 1, the bearing outer ring 2 comprises a first half outer ring 2.1, a second half outer ring 2.2 and an outer space ring 2.3 arranged between the first half outer ring 2.1 and the second half outer ring 2.2, and the first half outer ring 2.1 and the second half outer ring 2.2 are detachably connected with the outer space ring 2.3. The inner peripheral surface of the first semi-outer ring 2.1 and the inner peripheral surface of the second semi-outer ring 2.2 are both provided with concave spherical outer raceways with the same curvature radius.

The first half outer ring 2.1 and the second half outer ring 2.2 of the embodiment are detachably mounted on two sides of the outer space ring 2.3 through bolts 5 respectively. Specifically, the bolt 5 is arranged along the axial direction, the end faces of the first half outer ring 2.1 and the second half outer ring 2.2 are provided with through holes 6 matched with the bolt 5, the two end faces of the outer space ring 2.3 are provided with threaded holes 7 matched with the bolt 5, and when the installation and fixation are carried out, the thread section of the bolt 5 penetrates through the through holes 6 and is correspondingly screwed in the threaded holes 7. It should be noted that the first half outer ring 2.1 and the second half outer ring 2.2 are detachably mounted on two sides of the outer space ring 2.3 through the bolts 5 arranged along the axial direction of the bearing, so that the assembly and disassembly are facilitated, and the positioning accuracy is high. It should be noted that the number of the bolts 5 in this embodiment may be selected according to actual situations, for convenience of installation, the bolts 5 in this embodiment are hexagon socket head bolts 5, and one end of each through hole 6 away from the outer spacer 2.3 is provided with a counter bore adapted to a nut of the hexagon socket head bolt 5.

In order to achieve a quick positioning of the first half-collar 2.1 and the second half-collar 2.2 on both sides of the outer cage 2.3. The first half outer ring 2.1 and the second half outer ring 2.2 of the present embodiment are positioned on both sides of the outer space ring 2.3 by positioning pins 8, respectively. Specifically, the end faces of the first half outer ring 2.1 and the second half outer ring 2.2 are provided with first pin holes matched with the positioning pins 8, the two end faces of the outer spacer ring 2.3 are provided with second pin holes matched with the positioning pins 8, and the positioning pins 8 penetrate through the first pin holes and the second pin holes during installation and positioning. Preferably, the positioning pin 8 is two conical pins symmetrically arranged.

It should be noted that, in another embodiment, the first half outer ring 2.1 and the second half outer ring 2.2 are detachably mounted on two sides of the outer space ring 2.3 respectively through taper pins.

The spherical rolling elements 3 of the present embodiment are steel balls.

The assembling process of the self-aligning ball bearing comprises the following steps:

the two rows of spherical rolling bodies 3 are correspondingly arranged on two rows of inner raceways of the bearing inner ring 1 through a retainer 4, then a first half outer ring 2.1, an outer spacer bush and a second half outer ring 2.2 are correspondingly sleeved on the outer sides of the two rows of spherical rolling bodies 3 in sequence, finally the first half outer ring 2.1 and the second half outer ring 2.2 are respectively positioned on the two sides of the outer spacer ring 2.3 through two positioning pins 8 which are symmetrically arranged, and the first half outer ring 2.1 and the second half outer ring 2.2 are respectively fixed on the two sides of the outer spacer ring 2.3 through two bolts 5 which are symmetrically arranged to form the bearing outer ring 2. The bearing assembling device is simple to operate, convenient and fast, and the bearing is not separated after being assembled and is easier to install, store and transport.

Compared with the prior art, the embodiment has the beneficial effects that:

the self-aligning ball bearing of this embodiment combines radial bearing and slewing bearing's advantage, and it is connected first half outer lane 2.1 and second half outer lane 2.2 and spacer detachable through bolt 5, makes bearing assembly back inseparable, installs, stores and transports more easily.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely 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 particular orientation, be constructed and operated in a particular orientation, and therefore, 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; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

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. A self-aligning ball bearing, its characterized in that: the spherical rolling body is arranged between the bearing inner ring and the bearing outer ring in a rolling manner, the bearing outer ring comprises a first half outer ring, a second half outer ring and an outer space ring arranged between the first half outer ring and the second half outer ring, and the first half outer ring and the second half outer ring are detachably connected with the outer space ring.

2. A self-aligning ball bearing according to claim 1, wherein: the first half outer ring and the second half outer ring are detachably mounted on two sides of the outer space ring through bolts respectively.

3. A self-aligning ball bearing according to claim 2, wherein: the end faces of the first half outer ring and the second half outer ring are provided with through holes matched with the bolts, the two end faces of the outer space ring are provided with threaded holes matched with the bolts, and the threaded sections of the bolts penetrate through the through holes and are correspondingly screwed in the threaded holes.

4. A self-aligning ball bearing according to claim 1 or 2, wherein: the first half outer ring and the second half outer ring are positioned on two sides of the outer space ring through positioning pins respectively.

5. The self-aligning ball bearing according to claim 4, wherein: the end faces of the first half outer ring and the second half outer ring are provided with first pin holes matched with the positioning pins, the two end faces of the outer space ring are provided with second pin holes matched with the positioning pins, and the positioning pins penetrate through the first pin holes and the second pin holes.

6. The self-aligning ball bearing according to claim 5, wherein: the bolt is a hexagon socket head cap screw, and the locating pin is a taper pin.

7. A self-aligning ball bearing according to claim 1, wherein: the bearing inner ring is integrally arranged, and two rows of inner raceways matched with the two rows of spherical rolling bodies are arranged on the outer peripheral surface of the bearing inner ring in parallel.

8. A self-aligning ball bearing according to claim 1, wherein: the inner peripheral surface of the first half outer ring and the inner peripheral surface of the second half outer ring are both provided with concave spherical outer raceways with the same curvature radius.