WO2023097714A1

WO2023097714A1 - Stable deep groove ball bearing

Info

Publication number: WO2023097714A1
Application number: PCT/CN2021/136236
Authority: WO
Inventors: 李建平
Original assignee: 进发轴承有限公司
Priority date: 2021-12-03
Filing date: 2021-12-08
Publication date: 2023-06-08
Also published as: CN216382256U

Abstract

A stable deep groove ball bearing, related to the technical field of bearings. The problem of poor axial stability caused by the fact that an outer ring of an existing bearing is generally in clearance fit with an inner hole of a bearing chamber and the bearing moves in the bearing chamber during operation when the bearing is installed is solved. The stable deep groove ball bearing comprises a bearing inner ring and a bearing outer ring, wherein an unoccupied space is formed between the bearing inner ring and the bearing outer ring; a plurality of steel balls are provided between the bearing inner ring and the bearing outer ring; an annular groove I is formed in the outer end of the bearing inner ring; an annular groove II is symmetrically formed in the bearing outer ring; the steel balls roll in the annular groove I and the annular groove II; an abutting member is further provided on the inner wall of the bearing outer ring; an annular groove III is formed in the abutting member; and a positioning assembly is fixedly mounted at the top of the bearing outer ring. The bearing has the advantages of being stable in structure and reinforcing the internal structure of the bearing.

Description

A stable deep groove ball bearing

technical field

The utility model belongs to the technical field of bearings, relates to a deep groove ball bearing, in particular to a stable deep groove ball bearing.

Background technique

The bearing is the support of the shaft and is a component that plays a supporting role. Bearings are important basic components widely used in various types of machinery. Deep groove ball bearings are widely used in high-speed vacuum cleaners and other high-end motors. The customer requires the bearing to be easy to disassemble during assembly and reliable in axial positioning during operation. When the bearing is installed, a clearance fit is usually used between the outer ring of the bearing and the inner hole of the bearing chamber. The bearing will move in the bearing chamber during operation, and its axial stability is not good. At the same time, due to the radius of the outer ring of the bearing There is a gap between the outer ring and the inner hole of the bearing chamber. During the use of the bearing, the outer ring tends to creep along with the inner ring, that is, the displacement occurs in the circumferential direction, which reduces the working efficiency of the bearing. service life or cause stuck.

Contents of the invention

The purpose of this utility model is to provide a deep groove ball bearing with reasonable design, stable structure and reinforced inner structure of the bearing in order to solve the above problems in the prior art.

The purpose of this utility model can be achieved through the following technical solutions: a stable deep groove ball bearing, including a bearing inner ring and a bearing outer ring, there is a free space between the bearing inner ring and the bearing outer ring, the described There are several steel balls arranged between the inner ring of the bearing and the outer ring of the bearing, and it is characterized in that the outer end of the inner ring of the bearing is provided with an annular groove for installing several steel balls, and the outer ring of the bearing is symmetrically provided with Annular groove 2 for several steel balls to be installed. The steel balls roll in the annular groove 1 and the annular groove 2. The inner wall of the outer ring of the bearing is also provided with an abutment piece connected with the steel balls. The abutting member is provided with an annular groove 3 that matches the outer peripheral wall of the steel ball. The top end of the outer ring of the bearing is fixedly equipped with a positioning assembly for positioning and rotating the inner ring of the bearing and the steel ball. The positioning assembly consists of The connecting piece is composed of several positioning rods and several balls. The positioning rods correspond to each steel ball respectively. During the rotation of the steel balls, the positioning rods also rotate with the steel balls. There is a ring groove 1 matching the outer wall of the ball at the position where the inner ring meets, and a ring groove 2 is opened on the inner ring of the bearing and opposite to the ring groove, and the ring groove 1 and the ring groove 2 are in common A rolling space is formed for a plurality of balls to roll, and the inner ring of the bearing is in an active state during the working process and rolls under the action of the balls.

In the aforementioned stable deep groove ball bearing, a stepped groove is provided at the connection between the outer ring of the bearing and the abutment, and an oil guide groove for lubricating oil to enter the steel ball is provided on the abutment, and When the steel ball rolls on the bearing outer ring and the bearing inner ring to the abutment, lubricating oil is added to the steel ball through the action of the oil guide groove.

In the above-mentioned stable deep groove ball bearing, the positioning assembly is also arranged at the bottom end of the outer ring of the bearing, and the upper and lower ends of each steel ball are abutted against each other through positioning rods, and the positioning rods are on and opposite to each other. A protruding ring is protruded at the position of the connecting piece, and the positioning rods in each of the positioning components are connected with the protruding ring, and the lower end of the connecting piece is provided with a ring groove 3 for the protruding ring to rotate. During the rotation of the steel ball, the protruding ring and the positioning rod rotate synchronously.

In the above-mentioned stable deep groove ball bearing, a sliding seat is fixedly arranged in the second annular groove, and the sliding seat is concave, and the sliding seat corresponds to the outer side wall of the steel ball. The sliding seat is made of wear-resistant material.

In the aforementioned stable deep groove ball bearing, the connecting piece is fixedly installed on the outer ring of the bearing through fixing bolts.

Compared with the existing technology, this stable deep groove ball bearing is equipped with a positioning assembly on the upper end of the bearing outer ring and the bearing inner ring, so that the steel ball is more stable during the rolling process, and the abutment set at the bearing outer ring Parts, when the utility model is used, lubricating oil can be added to the steel ball through the oil guide groove, which strengthens the lubrication degree of the bearing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a side view structural diagram of the utility model.

In the figure, 1. Bearing inner ring; 2. Bearing outer ring; 3. Steel ball; 4. Annular groove 1; 5. Annular groove 2; ;9, connector; 10, positioning rod; 11, ball; 12, ring groove one; 13, ring groove two; 14, step groove; 15, oil guide groove; 16, protruding ring; 17, ring groove three; 18 , Sliding seat; 19, Fixing bolts.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Figure 1 and Figure 2, the stable deep groove ball bearing includes a bearing inner ring 1 and a bearing outer ring 2, there is a free space between the bearing inner ring 1 and the bearing outer ring 2, and the bearing Several steel balls 3 are arranged between the inner ring 1 and the bearing outer ring 2, and the outer end of the bearing inner ring 1 is provided with an annular groove-4 for installing several steel balls 3, and the bearing outer ring 2 is symmetrical There is an annular groove 2 5 for several steel balls 3 to be installed. The steel ball 3 rolls in the annular groove 1 4 and the annular groove 2 5. The inner wall of the bearing outer ring 2 is also provided with steel balls. 3 connected to the abutment 6, the abutment 6 is provided with an annular groove 3 7 that fits the outer peripheral wall of the steel ball 3, and the top end of the bearing outer ring 2 is fixedly installed with a bearing inner ring 1 A positioning assembly 8 for positioning and rotating with the steel ball 3, the positioning assembly 8 is composed of a connecting piece 9, several positioning rods 10 and several balls 11, and the described positioning rods 10 correspond to each steel ball 3 respectively. During the rotation of the steel ball 3, the positioning rod 10 also rotates with the steel ball 3, and a ring groove 12 matching the outer wall of the ball 11 is opened on the connecting piece 9 and connected with the inner ring 1 of the bearing. On the bearing inner ring 1 described above and relative to the ring groove 12, there is a ring groove 2 13, and the ring groove 12 and the ring groove 13 together form a rolling space for several balls 11 to roll. The bearing inner ring 1 is in an active state during the working process and rolls under the action of the ball 11 .

In further detail, when the movable shaft is installed on the bearing inner ring 1, the work starts, the movable shaft and the bearing inner ring 1 start to rotate at the same time, and the rolling of the bearing inner ring 1 drives the balls 11 to start rolling in the rolling space, and the bearing inner ring 1 It also drives the steel ball 3 to roll in the first annular groove 4 and the second annular groove 5. During the activity, the workers can pass the oil guide groove 15 of the abutment member 6 to the contact surface between the steel ball 3 and the first annular groove 4. Lubricate, whenever the steel ball 3 slides over the abutment 6, the steel ball 3 will be lubricated to improve the lubrication ability of the utility model, the sliding of the steel ball 3 will also drive the sliding of the positioning rod 10, and the raised ring 16 will Rotating on the connector 9, the steel ball 3 will drive each positioning rod 10 connected to the steel ball 3 to rotate in a circle. During the movement, due to the action of the positioning rod 10, the steel ball 3 is more stable in operation.

In further detail, a stepped groove 14 is provided at the connection between the bearing outer ring 2 and the abutment 6, and the oil seal inside the bearing is strengthened under the action of the stepped groove 14. The abutment 6 is provided with a steel ball for lubricating oil to enter. 3, and when the steel ball 3 rolls on the bearing outer ring 2 and the bearing inner ring 1 to the abutting member 6, lubricating oil is added to the steel ball 3 through the action of the oil guiding groove 15.

In further detail, the positioning assembly 8 is also arranged at the bottom end of the bearing outer ring 2, and the upper and lower ends of each steel ball 3 are abutted against by the positioning rod 10, and the position of the positioning rod 10 relative to the connecting piece 9 is A protruding ring 16 is protruded, and the positioning rods 10 in each of the positioning components 8 are connected to the protruding ring 16, and the lower end of the connecting piece 9 is provided with a ring groove 3 17 for the protruding ring 16 to rotate, During the rotation of the steel ball 3, the raised ring 16 and the positioning rod 10 rotate synchronously.

In further detail, a sliding seat 18 is fixedly arranged in the annular groove 2 5, and the sliding seat 18 is concavely arranged, and the sliding seat 18 corresponds to the outer side wall of the steel ball 3, and the sliding seat 18 is Composed of wear-resistant materials.

In further detail, the connecting piece 9 is fixedly installed on the bearing outer ring 2 through the fixing bolts 19, which enhances the stability of the overall structure.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims

A stable deep groove ball bearing, comprising a bearing inner ring (1) and a bearing outer ring (2), there is a free space between the bearing inner ring (1) and the bearing outer ring (2), the bearing A number of steel balls (3) are arranged between the inner ring (1) and the bearing outer ring (2), and it is characterized in that the outer end of the bearing inner ring (1) is provided with a mounting hole for several steel balls (3) Annular groove one (4), the outer ring of the bearing (2) is symmetrically provided with annular groove two (5) for the installation of several steel balls (3), and the steel balls (3) are placed in the annular groove one ( 4) and the ring groove two (5) for rolling, the inner wall of the bearing outer ring (2) is also provided with abutment (6) connected with the steel ball (3), the abutment ( 6) There is an annular groove three (7) matching the outer peripheral wall of the steel ball (3), and the top end of the bearing outer ring (2) is fixedly installed for the inner ring of the bearing (1) and the steel ball (3). The positioning assembly (8) for positioning rotation, the positioning assembly (8) is composed of a connecting piece (9), several positioning rods (10) and several balls (11), and the described positioning rods (10) are respectively connected with Each steel ball (3) corresponds to each other. During the rotation of the steel ball (3), the positioning rod (10) also rotates with the steel ball (3). The connecting piece (9) and the bearing inner ring (1) A ring groove one (12) matching the outer wall of the ball (11) is opened at the position where it connects, and a ring groove two (13) is opened on the inner ring of the bearing (1) and opposite to the ring groove one (12). ), the ring groove one (12) and the ring groove two (13) together form a rolling space for several balls (11) to roll, and the bearing inner ring (1) is in an active state during the working process, Roll under the effect of ball (11).
A stable deep groove ball bearing according to claim 1, characterized in that a stepped groove (14) is opened at the connection between the outer ring of the bearing (2) and the abutment (6), and the The abutment (6) is provided with an oil guide groove (15) for lubricating oil to enter the steel ball (3), and when the steel ball (3) rolls on the bearing outer ring (2) and the bearing inner ring (1) to the abutment When the part (6) is at the place, add lubricating oil to the steel ball (3) through the effect of the oil guide groove (15).
A stable deep groove ball bearing according to claim 1, characterized in that, the positioning assembly (8) is also arranged at the bottom end of the bearing outer ring (2), and the upper and lower sides of each steel ball (3) Both ends are abutted against by a positioning rod (10), and a raised ring (16) is protruded on the positioning rod (10) relative to the position of the connecting piece (9), and each positioning assembly (8) The positioning rods (10) in the center are connected with the protruding ring (16), and the lower end of the connecting piece (9) is provided with a ring groove three (17) for the protruding ring (16) to rotate, and the steel ball (3) During the rotation, the raised ring (16) rotates synchronously with the positioning rod (10).
A stable deep groove ball bearing according to claim 1, characterized in that, a sliding seat (18) is fixedly arranged in the second annular groove (5), and the sliding seat (18) is a concave Shape setting, and slide seat (18) is corresponding to the outer side wall of steel ball (3), and described slide seat (18) is made of wear-resistant material.
A stable deep groove ball bearing according to claim 1, characterized in that the connecting piece (9) is fixedly installed on the bearing outer ring (2) through a fixing bolt (19).