阅读说明：本技术 一种可变内径轴承的安装应用方法 (Mounting and application method of variable inner diameter bearing ) 是由 张婷 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种可变内径轴承的安装应用方法,包括轴承外圈和轴承内圈,所述轴承外圈的内壁与轴承内圈的外壁滑动连接,所述轴承内圈的一端沿径向并向内延伸有环盘,所述环盘内壁上间隔设置有若干横截面呈扇形的柱体,若干所述柱体呈圆周分布,相邻所述柱体之间设有斜锲滑块,所述斜锲滑块的底部一侧延伸有用于限制斜锲滑块沿径向运动的卡耳,所述柱体朝向轴承内圈的弧面设有螺纹；还包括变径压环,所述变径压环设于柱体与轴承内圈的内壁之间,所述变径压环与柱体螺纹连接,且与斜锲滑块的斜面贴靠。(The invention discloses an installation and application method of a bearing with a variable inner diameter, which comprises a bearing outer ring and a bearing inner ring, wherein the inner wall of the bearing outer ring is connected with the outer wall of the bearing inner ring in a sliding manner, one end of the bearing inner ring extends inwards along the radial direction to form a ring disc, a plurality of columns with sector-shaped cross sections are arranged on the inner wall of the ring disc at intervals, the columns are distributed in the circumferential direction, an inclined wedge sliding block is arranged between every two adjacent columns, a clamping lug for limiting the inclined wedge sliding block to move along the radial direction extends from one side of the bottom of the inclined wedge sliding block, and the columns are provided with threads towards the cambered surface of the bearing; the bearing comprises a cylinder and a bearing inner ring, and is characterized by further comprising a reducing pressure ring, wherein the reducing pressure ring is arranged between the cylinder and the inner wall of the bearing inner ring, is in threaded connection with the cylinder and is attached to the inclined surface of the inclined wedge sliding block.)

1. The mounting and application method of the bearing with the variable inner diameter is characterized by comprising a bearing outer ring (1) and a bearing inner ring (2), wherein the inner wall of the bearing outer ring (1) is in sliding connection with the outer wall of the bearing inner ring (2), one end of the bearing inner ring (2) extends inwards along the radial direction to form a ring disc (2 a), a plurality of columns (2 b) with sector-shaped cross sections are arranged on the inner wall of the ring disc (2 a) at intervals, the columns (2 b) are distributed in a circumferential manner, an inclined wedge sliding block (3) is arranged between every two adjacent columns (2 b), clamping lugs (3 a) used for limiting the inclined wedge sliding block (3) to move along the radial direction extend from one side of the bottom of the inclined wedge sliding block (3), and threads are arranged on the cambered surface, facing the bearing inner ring column (2), of the inclined wedge sliding block (; the bearing comprises a cylinder (2 b) and a bearing inner ring (2), and is characterized by further comprising a reducing pressure ring (4), wherein the reducing pressure ring (4) is arranged between the cylinder (2 b) and the inner wall of the bearing inner ring (2), the reducing pressure ring (4) is in threaded connection with the cylinder (2 b) and is attached to an inclined surface of an inclined wedge sliding block (3), limiting parts (5) used for limiting the reducing pressure ring (4) to rotate are arranged at intervals on the bearing inner ring (2), and the height of the bearing inner ring (2) is greater than that of the bearing outer ring (1);

during installation, the reducing compression ring 4 is screwed anticlockwise, at the moment, the 6 slanting wedge sliding blocks 3 can move outwards along the radial direction, so that a bearing can be sleeved on a journal, then the bearing is sleeved on the journal, the bearing is moved to an assembly position on the journal, then the reducing compression ring 4 is screwed reversely, so that the reducing compression ring 4 moves towards the ring disc 2a, at the moment, the 6 slanting wedge sliding blocks 3 tightly hold the journal under the continuous extrusion and abutting action of the reducing compression ring 4 as the reducing compression ring 4 is abutted against the slanting wedge sliding blocks 3 and the reducing compression ring 4 abuts against the slanting wedge sliding blocks 3, self-locking is realized, and then the limiting piece 5 is installed on the inner ring 2 of the bearing, so that the bearing is tightly matched with the journal; when the slanting wedge sliding block 3 moves inwards along the radial direction to a certain distance, the clamping lug 3a arranged on the slanting wedge sliding block 3 is clamped on the column body 2b, so that the slanting wedge sliding block 3 is prevented from further moving along the radial direction, and the slanting wedge sliding block 3 is limited to move along the radial direction together with the reducing compression ring 4, thereby ensuring that the bearing is tightly matched with the journal.

2. The mounting and application method of the bearing with the variable inner diameter according to claim 1, wherein the contact surface of the reducing compression ring (4) and the inclined wedge sliding block (3) is an inclined surface.

3. The method for installing and applying the bearing with the variable inner diameter according to claim 1, wherein the free end surface of the wedge slider (3) is a cambered surface.

4. The mounting and application method of the bearing with the variable inner diameter according to claim 1 is characterized in that the outer wall of the reducing compression ring (4) is provided with square grooves at intervals for matching with the limiting pieces (5).

5. The method for installing and applying the bearing with the variable inner diameter according to any one of claims 1 to 4, characterized by further comprising an annular cover plate (6) connected with the plurality of the columns (2 b), wherein the annular cover plate (6) is provided with a pressure head corresponding to the inclined wedge sliding block (3) and used for limiting the axial movement of the inclined wedge sliding block (3).

6. The method for installing and applying the bearing with the variable inner diameter as claimed in claim 5, wherein the bearing outer ring (1) and the bearing inner ring (2) are connected in a sliding mode through a sliding assembly.

7. The method for installing and applying the bearing with the variable inner diameter according to claim 6, wherein the sliding assembly comprises a retainer and a plurality of balls, the retainer is arranged between the bearing outer ring (1) and the bearing inner ring (2), the plurality of balls are arranged on the retainer and are in contact with the bearing outer ring (1) and the bearing inner ring (2), and the bearing inner ring (2) and the bearing outer ring (1) are provided with circular arc grooves for the balls to slide.

Technical Field

The invention relates to the technical field of bearings, in particular to an installation and application method of a bearing with a variable inner diameter.

Background

At present, the size of a bearing inner ring is fixed, the same bearing can only be arranged on a shaft neck with the same diameter, the installation precision requirement is high, the installation is not flexible enough, the bearing inner ring and the shaft neck are in interference fit or excessive fit, and the bearing inner ring and the shaft neck need to be pressed or knocked during assembly, so that the bearing is damaged to a certain extent, and the service life of the bearing is influenced.

Disclosure of Invention

The invention aims to overcome the defects and provide a mounting application method of a variable inner diameter bearing.

In order to achieve the purpose, the invention adopts the following specific scheme:

the mounting and application method of the bearing with the variable inner diameter comprises a bearing outer ring and a bearing inner ring, wherein the inner wall of the bearing outer ring is connected with the outer wall of the bearing inner ring in a sliding mode, a ring disc extends to one end of the bearing inner ring along the radial direction and inwards, a plurality of columns with sector-shaped cross sections are arranged on the inner wall of the ring disc at intervals, the columns are distributed in the circumferential direction, an inclined wedge sliding block is arranged between every two adjacent columns, a clamping lug used for limiting the inclined wedge sliding block to move along the radial direction extends from one side of the bottom of the inclined wedge sliding block, and threads are arranged on the columns facing the arc surface of the bearing; still include the reducing clamping ring, the reducing clamping ring is located between the inner wall of cylinder and bearing inner race, reducing clamping ring and cylinder threaded connection, and paste with the inclined plane of carving the slider to one side and lean on, the bearing inner race interval is equipped with and is used for restricting the rotatory locating part of reducing clamping ring, the height that highly is greater than the bearing inner race of bearing inner race.

The contact surface of the reducing compression ring and the inclined wedge sliding block is an inclined surface.

The free end surface of the inclined wedge sliding block is a cambered surface.

The outer wall of the reducing pressure ring is provided with square grooves at intervals, and the square grooves are used for being matched with the limiting pieces.

The cylinder is characterized by further comprising a circular ring cover plate connected with the plurality of cylinders, and a pressure head used for limiting the axial movement of the inclined wedge sliding block is arranged on the circular ring cover plate corresponding to the inclined wedge sliding block.

The bearing outer ring and the bearing inner ring are connected in a sliding mode through the sliding assembly.

The sliding assembly comprises a retainer and a plurality of balls, the retainer is arranged between a bearing outer ring and a bearing inner ring, the balls are arranged on the retainer and are in contact with the bearing outer ring and the bearing inner ring, and the bearing inner ring and the bearing outer ring are both provided with arc grooves for sliding of the balls.

The invention has the beneficial effects that: compared with the prior art, the reducing compression ring is arranged to be in threaded connection with the cylinder of the bearing inner ring, the inclined wedge sliding block can move along the radial direction by screwing the reducing compression ring, so that the inner diameter of the bearing can be changed, the reducing installation mode is realized, the bearing can be suitable for the installation of journals with different specifications, the application range is enlarged, the bearing and the journals can be in tight fit without adopting an interference fit or excessive fit mode, the damage to the bearing in the assembly process is avoided, and the service life of the bearing is longer.

The invention adopts the reducing type installation mode, and can reduce the size precision requirement of the bearing and the shaft neck in the manufacturing process, thereby reducing the manufacturing cost.

Drawings

FIG. 1 is a schematic structural diagram of a variable inner diameter bearing provided by an embodiment of the present invention;

FIG. 2 is a top view of a variable inner diameter bearing provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic view of a portion of a variable inner diameter bearing provided in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a bearing inner race provided by an embodiment of the invention;

FIG. 6 is a schematic structural diagram of a pressure reducing ring according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a wedge slider according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another view angle of the wedge slider according to the embodiment of the present invention;

description of reference numerals: 1-bearing outer ring; 2-bearing inner race; 2 a-a ring disk; 2 b-a cylinder; 3-slanting wedge sliding block; 3 a-clamping lug; 4-reducing compression ring; 5-a limiting part; 6-circular cover plate.

Detailed Description

The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.

As shown in fig. 1 to 8, the method for installing and applying a bearing with a variable inner diameter according to this embodiment includes a bearing outer ring 1 and a bearing inner ring 2, an inner wall of the bearing outer ring 1 is slidably connected to an outer wall of the bearing inner ring 2, one end of the bearing inner ring 2 extends radially and inwardly to form a ring disc 2a, a plurality of columns 2b with sector cross sections are arranged on an inner wall of the ring disc 2a at intervals, the plurality of columns 2b are circumferentially distributed, an inclined wedge slider 3 is arranged between adjacent columns 2b, a lug 3a for limiting the inclined wedge slider 3 to move radially extends from one side of a bottom of the inclined wedge slider 3, and a thread is arranged on an arc surface of the column 2b facing the bearing inner ring 2; still include reducing clamping ring 4, reducing clamping ring 4 is located between the inner wall of cylinder 2b and bearing inner race 2, reducing clamping ring 4 and cylinder 2b threaded connection, and paste with the inclined plane of carving slider 3 to one side and lean on, 2 intervals of bearing inner race are equipped with and are used for restricting the rotatory locating part 5 of reducing clamping ring 4, the height that highly is greater than bearing inner race 1 of bearing inner race 2. In this embodiment, it is preferable that the number of the cylinders 2b is 6, and correspondingly, the number of the slanting wedge sliding blocks 3 is 6.

During installation, the reducing compression ring 4 is screwed anticlockwise, at the moment, the 6 slanting wedge sliding blocks 3 can move outwards along the radial direction, so that a bearing can be sleeved on a journal, then the bearing is sleeved on the journal, the bearing is moved to an assembly position on the journal, then the reducing compression ring 4 is screwed reversely, so that the reducing compression ring 4 moves towards the ring disc 2a, at the moment, the 6 slanting wedge sliding blocks 3 tightly hold the journal under the continuous extrusion and abutting action of the reducing compression ring 4 as the reducing compression ring 4 is abutted against the slanting wedge sliding blocks 3 and the reducing compression ring 4 abuts against the slanting wedge sliding blocks 3, self-locking is realized, and then the limiting piece 5 is installed on the inner ring 2 of the bearing, so that the bearing is tightly matched with the journal; when the slanting wedge sliding block 3 moves inwards along the radial direction to a certain distance, the clamping lug 3a arranged on the slanting wedge sliding block 3 is clamped on the column body 2b, so that the slanting wedge sliding block 3 is prevented from further moving along the radial direction, and the slanting wedge sliding block 3 is limited to move along the radial direction together with the reducing compression ring 4, thereby ensuring that the bearing is tightly matched with the journal.

This embodiment sets up the cylinder 2b threaded connection of reducing clamping ring 4 and bearing inner race 2, thereby it can radially remove to carve the slider 3 to make one side through revolving to twist reducing clamping ring 4, thereby can change the internal diameter of bearing, realize the mounting means of reducing, make the bearing can adapt to the journal installation of different specifications, increased application range, and can make bearing and journal fastening fit, and need not to adopt interference fit or excessive fit mode, avoided the destruction of assembling process to the bearing, make the life of bearing longer.

The variable-diameter mounting mode is adopted in the embodiment, the requirement of the size precision of the bearing and the journal in the manufacturing process can be reduced, and the manufacturing cost is further reduced.

Based on the above embodiment, further, in order to better match the reducing press ring 4 and the slanting wedge sliding block 3, the surface of the reducing press ring 4 contacting the slanting wedge sliding block 3 is set to be an inclined surface.

Based on the above embodiment, further, the free end surface of the slanting wedge sliding block 3 is a cambered surface, which is more beneficial for the slanting wedge sliding block 3 to hold the shaft neck tightly, so that the structure is firmer and the sliding friction is avoided.

Based on the above embodiment, further, as shown in fig. 6, square grooves for matching with the limiting members 5 are formed in the outer wall of the reducing compression ring 4 at intervals; preferably, the limiting member 5 is a stop screw, and the stop screw is screwed on the bearing inner ring 2 and embedded in the square groove, so that the rotation of the reducing compression ring 4 can be further limited.

In this embodiment, as shown in fig. 1 to 3, the device further includes a circular cover plate 6 connected to the 6 cylinders 2b, and the circular cover plate 6 is provided with a pressing head corresponding to the slanting wedge sliding block 3 for limiting the axial movement of the slanting wedge sliding block 3; during installation, the circular cover plate 6 is fixedly connected with each cylinder 2b on the bearing inner ring 2, and the pressure head on the circular cover plate 6 abuts against the inclined wedge sliding block 3, so that the inclined wedge sliding block 3 can be prevented from sliding along the axial direction, and the bearing is matched with the shaft neck more firmly.

Based on the above embodiment, further, the bearing outer ring 1 and the bearing inner ring 2 are connected in a sliding manner through a sliding assembly. In this embodiment, the sliding assembly includes a retainer and a plurality of balls, the retainer is disposed between the bearing outer ring 1 and the bearing inner ring 2, the plurality of balls are disposed on the retainer and are in contact with the bearing outer ring 1 and the bearing inner ring 2, and the bearing inner ring 2 and the bearing outer ring 1 are both provided with arc grooves for the balls to slide; preferably, the number of the balls is 20, and when the bearing outer ring 1 or the bearing inner ring 2 rotates, the 20 balls drive the retainer to make circular motion along the circular arc grooves of the bearing inner ring 2 and the bearing outer ring 1, so that the relative sliding between the bearing outer ring 1 and the bearing inner ring 2 is realized.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.