CN215890778U

CN215890778U - Integrated double-row angular contact bearing

Info

Publication number: CN215890778U
Application number: CN202121959921.2U
Authority: CN
Inventors: 逄博
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-22
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to the technical field of bearings, and particularly discloses an integrated double-row angular contact bearing which comprises an outer ring, an inner ring, a rolling body and a retainer, wherein a flange is integrally arranged on the outer peripheral surface of the outer ring, an inner gear ring is integrally connected to the end surface of the outer ring, two radially symmetrical outer raceways are arranged on the inner diameter of the outer ring, the inner ring is radially symmetrical, an inner raceway matched with the outer raceways to accommodate the rolling body to roll is arranged on the inner ring, and the two inner rings are connected through a clamp spring. By adopting the structure, the integrated double-row angular contact bearing is provided, the outer ring, the flange plate and the inner gear ring are combined into a whole, the outer raceway is directly processed on the flange plate during processing, the positioning and the pre-tightening are carried out on the bearing through the clamp spring on the motor shaft, and the installation flow of the speed reducer can be greatly simplified.

Description

Integrated double-row angular contact bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to an integrated double-row angular contact bearing.

Background

The bearing is an important part in the modern mechanical equipment, and can be arranged at a mechanical rotating place, and the main function of the bearing is to support the rotating body, reduce the friction coefficient in the moving process and ensure the rotation precision of the rotating body. At present, common bearings of the industrial speed reducer comprise a deep groove ball bearing, a self-aligning ball bearing, a double-row angular contact ball bearing, a cylindrical roller bearing, a self-aligning roller bearing, a tapered roller bearing, a needle bearing and the like. The input end of the speed reducer is often connected with a motor shaft, and the motor shaft and the gear ring are supported through a bearing, but the whole installation process is very complicated, and installation errors are easy to occur due to space limitation, so that a bearing for simplifying the installation process of the motor and the speed reducer is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an integrated double-row angular contact bearing, wherein an outer ring, a flange plate and an inner gear ring are combined into a whole, an outer raceway is directly processed on the flange plate during processing, the positioning of the bearing is carried out through positioning and pre-tightening by a clamp spring on a motor shaft, and the installation process of a speed reducer can be greatly simplified.

In order to achieve the purpose, the utility model adopts the technical scheme that: the integrated double-row angular contact bearing comprises an outer ring, an inner ring, rolling bodies and a retainer, wherein a flange plate is integrally arranged on the outer peripheral surface of the outer ring, an inner gear ring is integrally connected to the end surface of the outer ring, two radially symmetrical outer raceways are arranged on the inner diameter of the outer ring, the inner ring is radially symmetrical, two inner raceways which are matched with the outer raceways to form an inner raceway for accommodating the rolling bodies are arranged on the inner ring, and the two inner rings are connected through a clamp spring.

In the technical scheme, the flange plate, the inner gear ring and the outer ring are integrated, so that the mounting steps are reduced, the structure is more compact and stable, and the installation and the use are convenient.

As a further arrangement of the utility model, the inner wall of the inner gear ring is provided with convex ribs uniformly distributed along the circumferential direction of the inner gear ring, the outer wall of the inner gear ring is flush with the outer circumferential surface of the outer ring, and the flange is aligned with the inner ring close to the inner gear ring.

According to the technical scheme, the stability of the whole machine in the installation process is guaranteed, meanwhile, the installation space can be saved, the effective wall thickness of the outer ring is increased, the strength of the bearing is increased, and meanwhile, the inner ring is a common angular contact bearing ring, so that the universality is excellent.

As a further arrangement of the utility model, the inner diameter of the end part where the two inner rings are connected is provided with a clamp spring groove, and the clamp spring is clamped in the two clamp spring grooves to realize the fixed connection of the two inner rings.

Among the above-mentioned technical scheme, the jump ring card of being convenient for is gone into in the setting of jump ring groove, fixes two inner circles, is convenient for fix a position.

As a further arrangement of the utility model, the clamp spring grooves are annular, and the groove wall of one side of each clamp spring groove close to the middle is lower than the groove wall of one side far away from the middle.

Among the above-mentioned technical scheme, the guarantee jump ring can block in smoothly, avoids damaging, guarantees the stability of structure.

As a further arrangement of the utility model, a convex ring is arranged at the inner diameter of the outer ring, the outer rolling ways are arranged on the inner wall of the convex ring, an oil filling hole is arranged on the convex ring, the oil filling hole comprises an axial channel arranged along the axial direction of the convex ring and a radial channel arranged along the radial direction of the convex ring, the number of the radial channels is two, the two radial channels are respectively communicated with the two outer rolling ways, the radial channel and the axial channel are also communicated with each other, and a blocking structure is arranged on the radial channel.

Among the above-mentioned technical scheme, the setting of block structure can avoid lubricating oil excessive, keeps operational environment's clean and tidy.

As a further arrangement of the present invention, the blocking structure includes a compression spring and a ball disposed in the radial channel, a first limit ring and a second limit ring are respectively disposed at two ends of the radial channel, the ball and the second limit ring close to the axial channel form an abutting sealing fit, one end of the compression spring abuts against the first limit ring close to the outer raceway, and the other end abuts against the ball.

Among the above-mentioned technical scheme, during the oiling, lubricating oil pours into from axial passageway, the entry end through radial passageway gets into and extrudees the ball, push away the ball toward the inner circle direction, make ball and second spacing ring throw off, remove the shutoff cooperation, lubricating oil flows in through the space between ball and the second spacing ring, because of radial passageway and outer raceway intercommunication, so lubricating oil can get into outer raceway after passing radial passageway, when not oiling, the ball butt forms the shutoff cooperation on the second spacing ring under compression spring's elasticity effect, and unnecessary lubricating oil also has the extrusion force to the ball in the outer raceway, make the stable butt of ball ability in second spacing ring department, simple structure is stable.

The utility model is further described below with reference to the accompanying drawings.

Drawings

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

FIG. 2 is a structural cross-sectional view of an embodiment of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2.

Detailed Description

The specific embodiment of the utility model is shown in fig. 1-3, and the integrated double-row angular contact bearing comprises an outer ring 1, an inner ring 2, a rolling body 3 and a retainer 4, wherein a flange 11 is integrally arranged on the outer peripheral surface of the outer ring 1, an inner gear ring 12 is integrally connected to the end surface of the outer ring 1, two radially symmetrical outer raceways are arranged on the inner diameter of the outer ring 1, the inner ring 2 is two radially symmetrical inner raceways, an inner raceway matched with the outer raceways to accommodate the rolling body 3 is arranged on the inner ring 2, and the two inner rings 2 are connected through a snap spring 5. The flange plate 11, the inner gear ring 12 and the outer ring 1 are integrated, so that the mounting steps are reduced, the structure is more compact and stable, and the installation and the use are convenient.

The inner wall of the inner gear ring 12 is provided with convex ribs 121 uniformly distributed along the circumferential direction, the outer wall of the inner gear ring is flush with the outer circumferential surface of the outer ring 1, and the flange 11 is aligned with the inner ring 2 close to the inner gear ring 12. The stability of the whole machine in the installation process is guaranteed, meanwhile, the installation space can be saved, the effective wall thickness of the outer ring 1 is increased, the bearing strength is increased, and meanwhile, the inner ring 2 is a common angular contact bearing ring, so that the universal bearing has excellent universality.

The inner diameter of the end part where the two inner rings 2 are connected is provided with a clamp spring groove 21, and the clamp spring 5 is clamped in the two clamp spring grooves 21 to realize the fixed connection of the two inner rings 2. The clamp spring groove 21 is convenient for the clamp spring 5 to be clamped in, and the two inner rings 2 are fixed and convenient for positioning.

The upper clamp spring groove 21 is annular, and the groove wall of one side of the two clamp spring grooves 21 close to the middle is lower than the groove wall of one side far away from the middle. The clamp spring 5 can be smoothly clamped, damage is avoided, and stability of the structure is guaranteed.

The inner diameter of the outer ring 1 is provided with a convex ring 13, the outer raceway is arranged on the inner wall of the convex ring 13, an oil filling hole 14 is arranged on the convex ring 13, the oil filling hole 14 comprises an axial channel 141 arranged along the axial direction of the convex ring 13 and a radial channel 142 arranged along the radial direction of the convex ring 13, the number of the radial channels 142 is two, the two radial channels are respectively communicated with the two outer raceways, the radial channel 142 and the axial channel 141 are also communicated with each other, and the radial channel 142 is provided with a blocking structure. The setting of block structure can avoid lubricating oil excessive, keeps operational environment's clean and tidy.

The blocking structure comprises a compression spring 1421 and a ball 1422 arranged in the radial channel 142, a first limit ring 1423 and a second limit ring 1424 are respectively arranged at two ends of the radial channel 142, the ball 1422 and the second limit ring 1424 close to the axial channel 141 form abutting sealing fit, the inner diameter of the second limit ring 1424 is smaller than the diameter of the ball 1422 and larger than the radius of the ball 1422, one end of the compression spring 1421 abuts against the first limit ring 1423 close to the outer raceway, and the other end abuts against the ball 1422. During oil injection, lubricating oil is injected from the axial channel 141, enters and extrudes the ball 1422 through the inlet end of the radial channel 142, the ball 1422 is pushed toward the inner ring 2, the ball 1422 is separated from the second limit ring 1424, the sealing fit is released, the lubricating oil flows in through the gap between the ball 1422 and the second limit ring 1424, the radial channel 142 is communicated with the outer raceway, so that the lubricating oil can enter the outer raceway after passing through the radial channel 142, when the oil is not injected, the ball 1422 abuts against the second limit ring 1424 under the action of the elastic force of the compression spring 1421 to form the sealing fit, and the redundant lubricating oil in the outer raceway also has extrusion force on the ball 1422, so that the ball 1422 can stably abut against the second limit ring 1424, and the structure is simple and stable.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention.

Claims

1. The utility model provides an integrated form double row angular contact bearing, includes outer lane, inner circle, rolling element and holder, its characterized in that: the outer ring is integrally provided with a flange plate on the outer peripheral surface of the outer ring, the end surface of the outer ring is integrally connected with an inner gear ring, the inner diameter of the outer ring is provided with two radially symmetrical outer raceways, the inner ring is provided with two radially symmetrical inner raceways which are matched with the outer raceways to form an inner raceway for accommodating rolling bodies, and the two inner rings are connected through a snap spring.

2. The integrated double row angular contact bearing according to claim 1, wherein: the inner wall of the inner gear ring is provided with convex ribs uniformly distributed along the circumferential direction of the inner gear ring, the outer wall of the inner gear ring is flush with the outer circumferential surface of the outer ring, and the flange plate is aligned with the inner ring close to the inner gear ring.

3. The integrated double row angular contact bearing according to claim 1 or 2, wherein: and the inner diameter of the end part connected with the two inner rings is provided with a clamp spring groove, and the clamp spring is clamped in the two clamp spring grooves to realize the fixed connection of the two inner rings.

4. The integrated double row angular contact bearing according to claim 3, wherein: the clamp spring grooves are annular, and the groove wall of one side, close to the middle, of each clamp spring groove is lower than the groove wall of one side, far away from the middle, of each clamp spring groove.

5. The integrated double row angular contact bearing according to claim 1, 2 or 4, wherein: the inner diameter department of outer lane is provided with the bulge loop, outer raceway sets up on the inner wall of bulge loop, be provided with the oil filler point on the bulge loop, the oil filler point includes the axial passageway that sets up along the axial of bulge loop and radially is provided with radial passage along the bulge loop, radial passage is two, respectively with two outer raceway intercommunications, radial passage and axial passage also communicate each other, be provided with block structure on the radial passage.

6. The integrated double row angular contact bearing according to claim 5, wherein: the blocking structure comprises a compression spring and a ball which are arranged in a radial channel, wherein a first limiting ring and a second limiting ring are respectively arranged at two ends of the radial channel, the ball and the second limiting ring close to the axial channel form butt sealing fit, one end of the compression spring is butted on the first limiting ring close to the outer raceway, and the other end of the compression spring is butted on the ball.