High-strength double-row oscillating bar bearing

Abstract

The high-strength double-row oscillating bar bearing comprises a bearing inner ring, a bearing outer ring, balls and a retainer, the bearing outer ring is arranged outside the bearing inner ring in a sleeving mode, the balls are arranged in the retainer, the balls and the retainer are located between the bearing inner ring and the bearing outer ring, the bearing inner ring is provided with an installation through hole, and the installation through hole is communicated with the bearing outer ring. A connector is mounted in the mounting through hole through a fastening mechanism, the fastening mechanism is used for fixing the connector, a swing rod is arranged on an outer ring of the bearing, an oil storage channel is formed in the swing rod, the connector is mounted in the mounting through hole through the fastening mechanism, the connector is locked or loosened through the fastening mechanism, and the mounting modes of the swing rod bearing are diversified by replacing different connectors; meanwhile, an oil storage channel is formed in the swing rod, lubricating oil is injected into the ball through the oil storage channel, the lubricating performance between the ball and the bearing inner ring and the lubricating performance between the ball and the bearing outer ring are guaranteed, friction is reduced, the service time is prolonged, and the service life of the swing rod bearing is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of swing rod bearings, and particularly relates to a high-strength double-row swing rod bearing. Background Art

[0002] The main function of a bearing is to support a mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. A swing rod bearing is a type of bearing that is used to support a mechanical rotating body and reduce the friction coefficient during its movement. Its main characteristics are small friction resistance, small power consumption, high mechanical efficiency, easy starting, supporting the rotating shaft and the parts on the shaft, and maintaining the normal working position and rotational accuracy of the shaft.

[0003] However, when the existing swing rod bearings are installed with external parts, the installation method is relatively single and cannot meet daily use. Moreover, most of the existing swing rod bearings are manually lubricated, and the lubricating oil cannot be slowly injected into the bearing automatically, increasing the friction between the balls and the outer ring and inner ring of the bearing, and affecting the service life. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above technical problems existing in the prior art, and provide a high-strength double-row swing rod bearing. By providing a connection head, the connection head is installed in the installation through hole through a fastening mechanism. The connection head is locked or loosened through the fastening mechanism. By replacing different connection heads, the installation method of the swing rod bearing is diversified, facilitating the connection between the swing rod bearing and external parts. At the same time, by providing an oil storage channel in the swing rod, lubricating oil is injected into the balls through the oil storage channel, ensuring the lubricity between the balls and the inner ring and outer ring of the bearing, reducing friction, extending the use time, and increasing the service life of the swing rod bearing.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A high-strength double-row swing rod bearing, including an inner bearing ring, an outer bearing ring, balls, and a retainer. The outer bearing ring is sleeved outside the inner bearing ring. The balls are arranged in the retainer. The balls and the retainer are located between the inner bearing ring and the outer bearing ring. The retainer is used to limit the balls.

[0007] It is characterized in that: the inner bearing ring is provided with an installation through hole, and a connection head is installed in the installation through hole through a fastening mechanism. The fastening mechanism is used to fix the connection head. The outer bearing ring is provided with a swing rod, and an oil storage channel is arranged in the swing rod. Lubricating oil is introduced into the balls through the oil storage channel.

[0008] By providing a connector, the connector is installed in the installation through-hole by a fastening mechanism, the connector is locked or loosened by the fastening mechanism, and by replacing different connectors, the installation method of the swing rod bearing is diversified, facilitating the connection between the swing rod bearing and external parts. At the same time, by providing an oil storage channel in the swing rod, lubricating oil is injected into the ball through the oil storage channel, ensuring the lubricity between the ball and the inner ring and outer ring of the bearing, reducing friction, extending the service time, and increasing the service life of the swing rod bearing.

[0009] Further, the installation through-hole includes a first installation hole, a second installation hole, and a connection hole. The first installation hole and the second installation hole are communicated through the connection hole, and the connector is installed in the first installation hole.

[0010] Further, the connector includes a connecting inner shaft and a connecting outer shaft, and the connecting inner shaft and the connecting outer shaft are integrally formed. The integrally formed structure has high strength and is not easily damaged.

[0011] Further, the fastening mechanism includes a locking column and a locking bolt. The locking column is connected to the locking bolt. The inner ring of the bearing is provided with a through-hole and a threaded hole. The locking column is arranged in the through-hole, and the locking bolt is arranged in the threaded hole. The locking bolt drives the locking column to lock the connector through the threaded hole. An arc-shaped abutting notch is provided at the end of the locking column.

[0012] Further, the locking bolt is provided with a connection disk. The locking column and the locking bolt are connected through the connection disk. The locking column is provided with a connection notch, a limiting column is arranged in the connection notch, and a limiting groove is arranged on the connection disk. The limiting column is limited in the limiting groove.

[0013] Further, the oil storage channel includes an oil inlet channel, a connection channel, an oil storage tank, and a branch channel. A sealing cover is provided at the end of the oil inlet channel. The oil inlet channel is communicated with the connection channel, the connection channel is communicated with the oil storage tank, the oil storage tank is used for storing lubricating oil, the branch channel is communicated with the oil storage tank, and the lubricating oil in the oil storage tank falls between the inner ring and outer ring of the bearing through the branch channel to lubricate the ball.

[0014] Further, the retainer includes a fixing ring and a connecting ring. First arc-shaped grooves are provided on both sides of the fixing ring, and a second arc-shaped groove is provided on the connecting ring. The first arc-shaped groove and the second arc-shaped groove are matched. The ball is limited between the first arc-shaped groove and the second arc-shaped groove. Corresponding fixing holes are provided on the connecting ring and the fixing ring, and the connecting ring and the fixing ring are installed and fixed by combining screws through the fixing holes.

[0015] Further, a dust-proof ring is also included. The dust-proof ring is located on both sides of the outer ring of the bearing, and the dust-proof ring is used to prevent dust from entering between the outer ring and the inner ring of the bearing.

[0016] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0017] In the present utility model, an installation through-hole is provided in the inner ring of the bearing. A connection head is installed in the installation through-hole through a fastening mechanism, and the fastening mechanism is used to fix the connection head. A swing rod is provided on the outer ring of the bearing, and an oil storage channel is provided in the swing rod. Lubricating oil is introduced into the ball through the oil storage channel. By providing a connection head, the connection head is installed in the installation through-hole through a fastening mechanism, and the connection head is locked or loosened through the fastening mechanism. By replacing different connection heads, the installation methods of the swing rod bearing are diversified, facilitating the connection between the swing rod bearing and external parts. At the same time, by providing an oil storage channel in the swing rod and injecting lubricating oil into the ball through the oil storage channel, the lubricity between the ball and the inner ring and outer ring of the bearing is ensured, friction is reduced, the service time is extended, and the service life of the swing rod bearing is increased.

[0018] In the present utility model, the cage includes a fixing ring and a connecting ring. First arc-shaped grooves are provided on both sides of the fixing ring, and a second arc-shaped groove is provided on the connecting ring. The first arc-shaped groove and the second arc-shaped groove are arranged in a matching manner. The balls are limited between the first arc-shaped groove and the second arc-shaped groove. The connecting ring and the fixing ring are respectively provided with fixing holes, and the connecting ring and the fixing ring are installed and fixed by combining screws through the fixing holes. By setting the cage as a detachable fixing ring and connecting ring, when the balls are installed and limited between the first arc-shaped groove and the second arc-shaped groove, and then the fixing ring and the connecting ring are fixed by screws, it is convenient for the installation of the balls. Brief Description of the Drawings

[0019] The present utility model will be further described below with reference to the drawings:

[0020] Figure 1 is a schematic structural diagram of a high-strength double-row swing rod bearing of the present utility model;

[0021] Figure 2 In the present utility model Figure 1 is a cross-sectional view;

[0022] Figure 3 is a schematic structural diagram of the cage of the present utility model;

[0023] Figure 4 is an exploded view of the fastening mechanism of the present utility model.

[0024] In the figure: 1 - inner ring of bearing; 2 - outer ring of bearing; 3 - ball; 4 - retainer; 5 - mounting through-hole; 6 - fastening mechanism; 7 - connector; 8 - swing rod; 9 - first mounting hole; 10 - second mounting hole; 11 - connecting hole; 12 - connecting inner shaft; 13 - connecting outer shaft; 14 - locking column; 15 - locking bolt; 16 - through-hole; 17 - threaded hole; 18 - arc abutting notch; 19 - connecting plate; 20 - connecting notch; 21 - limiting column; 22 - limiting groove; 23 - oil inlet channel; 24 - connecting channel; 25 - oil storage tank; 26 - branch channel; 27 - sealing cover; 28 - fixing ring; 29 - connecting ring; 30 - first arc groove; 31 - second arc groove; 32 - fixing hole; 33 - dust-proof ring. Detailed implementation mode

[0025] As Figures 1 to 4 shown, a high-strength double-row swing rod bearing of the present utility model includes an inner ring 1 of the bearing, an outer ring 2 of the bearing, balls 3, a retainer 4, a connector 7, a fastening mechanism 6, an oil storage channel, and a dust-proof ring 33. The outer ring 2 of the bearing is sleeved outside the inner ring 1 of the bearing. The balls 3 are arranged in the retainer 4. The balls 3 and the retainer 4 are located between the inner ring 1 of the bearing and the outer ring 2 of the bearing. The retainer 4 is used to limit the balls 3. The inner ring 1 of the bearing is provided with a mounting through-hole 5. The connector 7 is installed in the mounting through-hole 5 through the fastening mechanism 6. The connector 7 is fixed and disassembled through the fastening mechanism 6. The outer ring 2 of the bearing is provided with a swing rod 8. The oil storage channel is arranged in the swing rod 8. The oil storage channel is communicated with the balls 3. Lubricating oil is introduced into the balls 3 through the oil storage channel to lubricate the balls 3. The dust-proof rings 33 are located on both sides of the outer ring 2 of the bearing. Through the arrangement of the dust-proof rings 33, dust is prevented from entering between the outer ring 2 of the bearing and the inner ring 1 of the bearing from both sides of the outer ring 2 of the bearing, so as to avoid contaminating the balls 3 and ensure the lubricity of the movement of the balls 3.

[0026] By providing the connector 7, the connector 7 is installed in the mounting through-hole 5 through the fastening mechanism 6. The connector 7 is locked or loosened through the fastening mechanism 6. By replacing different connectors 7, the installation methods of the swing rod bearing are diversified, which is convenient for the connection between the swing rod bearing and external parts. At the same time, by providing an oil storage channel in the swing rod 8, lubricating oil is injected into the balls 3 through the oil storage channel to ensure the lubricity between the balls 3 and the inner ring 1 of the bearing and the outer ring 2 of the bearing, reduce friction, extend the service time, and increase the service life of the swing rod bearing.

[0027] The mounting through holes 5 include a first mounting hole 9, a second mounting hole 10 and a connecting hole 11. The connecting head 7 is mounted in the first mounting hole 9. The first mounting hole 9 and the second mounting hole 10 are connected and communicated through the connecting hole 11. The connecting head 7 includes a connecting inner shaft 12 and a connecting outer shaft 13. The connecting inner shaft 12 and the connecting outer shaft 13 are of an integrally formed structure. The integrally formed structure has high strength and is not easily damaged. After the connecting head 7 is mounted, the connecting outer shaft 13 is located in the first mounting hole 9, and the connecting inner shaft 12 is located in the connecting hole 11. The second mounting hole 10 is used for mounting the swing rod bearing. The fastening mechanism 6 is arranged on the inner ring 1 of the bearing. The fastening mechanism 6 locks the connecting outer shaft 13 of the connecting head 7, thereby fixing the connecting head 7 in the first mounting hole 9.

[0028] The fastening mechanism 6 includes a locking column 14, a locking bolt 15 and a connecting disk 19. The connecting disk 19 is fixed on the locking bolt 15 and rotates with the rotation of the locking bolt 15. The locking column 14 is provided with a connecting notch 20. The connecting disk 19 is embedded in the connecting notch 20. The locking column 14 and the locking bolt 15 are connected through the connecting disk 19. A limiting column 21 is arranged in the connecting notch 20, and a limiting groove 22 corresponding to the limiting column 21 is arranged on the connecting disk 19. The limiting column 21 is limited in the limiting groove 22. When the locking bolt 15 rotates, it drives the connecting disk 19 to rotate, so that the limiting column 21 moves along the limiting groove 22. The inner ring 1 of the bearing is provided with a through hole 16 and a threaded hole 17. The locking column 14 is arranged in the through hole 16, and the locking bolt 15 is arranged in the threaded hole 17. By screwing the locking bolt 15 into the threaded hole 17, the locking column 14 is driven to lock the connecting head 7. An arc-shaped abutting notch 18 is arranged at the end of the locking column 14. The connecting head 7 is abutted through the arc-shaped abutting notch 18, thereby clamping the connecting head 7. The design of the arc-shaped abutting notch 18 matches the surface of the connection. In this embodiment, rubber or other materials with elastic properties may be provided at the arc-shaped abutting notch 18 to prevent the locking column 14 from scratching the connecting head 7. Through the design of the locking column 14, the locking bolt 15 is prevented from directly locking the connecting head 7, thereby avoiding damage to the connecting head 7 caused by the locking bolt 15.

[0029] The oil storage passage includes an oil inlet passage 23, a connecting passage 24, an oil storage tank 25, and a branch passage 26. A sealing cover 27 is provided at the end of the oil inlet passage 23. The oil inlet passage 23 communicates with the connecting passage 24, the connecting passage 24 communicates with the oil storage tank 25, and the oil storage tank 25 is used to store lubricating oil. The branch passage 26 communicates with the oil storage tank 25. The oil storage passage is blocked by the sealing cover 27 to prevent the lubricating oil from splashing out. The lubricating oil is injected through the oil inlet passage 23 and enters the oil storage tank 25 through the connecting passage 24 for storage. The oil storage tank 25 is connected with the branch passage 26. In this embodiment, there are two sets of balls 3, so there are also two corresponding branch passages 26 for the balls 3. The two branch passages 26 respectively correspond to the two sets of balls 3. The diameter of the branch passage 26 is relatively small, so that the lubricating oil continuously drips slowly into the balls 3 to form continuous dripping, and continuously lubricates the balls 3.

[0030] The retainer 4 includes a fixing ring 28 and a connecting ring 29. First arc-shaped grooves 30 are provided on both sides of the fixing ring 28, and a second arc-shaped groove 31 is provided on the connecting ring 29. The first arc-shaped groove 30 and the second arc-shaped groove 31 are arranged in a matching manner. The balls 3 are limited between the first arc-shaped groove 30 and the second arc-shaped groove 31. Fixing holes 32 are correspondingly provided on the connecting ring 29 and the fixing ring 28, and the connecting ring 29 and the fixing ring 28 are installed and fixed by combining screws through the fixing holes 32.

[0031] In the present utility model, the retainer 4 is set as a detachable fixing ring 28 and connecting ring 29. When installing the balls 3, first, the balls 3 are installed into the first arc-shaped grooves 30, and then the connecting ring 29 is installed. The second arc-shaped groove 31 of the connecting ring 29 is made to correspond to the first arc-shaped groove 30 of the fixing ring 28, and then the fixing ring 28 and the connecting ring 29 are fixed by combining screws through the fixing holes 32. Through the above structural design, the installation of the balls 3 is made more convenient.

[0032] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present utility model to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present utility model.

Claims

1. A high-strength double-row rocker bearing, comprising a bearing inner ring, a bearing outer ring, a ball and a retainer, wherein the bearing outer ring is sleeved outside the bearing inner ring, the ball is arranged in the retainer, the ball and the retainer are located between the bearing inner ring and the bearing outer ring, and the retainer is used to limit the ball; Features: The inner ring of the bearing is provided with a mounting through hole, in which a connector is installed via a fastening mechanism, and the fastening mechanism is used to fix the connector. The outer ring of the bearing is provided with a rocker arm, in which an oil storage channel is provided, and lubricating oil is introduced into the ball through the oil storage channel.

2. A high-strength double-row rocker bearing according to claim 1, characterized in that: The mounting through hole comprises a first mounting hole, a second mounting hole and a connecting hole, the first mounting hole and the second mounting hole are connected through the connecting hole, and the connecting head is installed in the first mounting hole.

3. A high-strength double-row rocker bearing according to claim 2, characterized in that: The connecting head comprises an inner connecting shaft and an outer connecting shaft, and the inner connecting shaft and the outer connecting shaft are integrally formed.

4. The high-strength double-row rocker bearing according to claim 1, characterized in that: The fastening mechanism includes a locking column and a locking bolt, the locking column is connected to the locking bolt, the inner ring of the bearing is provided with a through hole and a threaded hole, the locking column is arranged in the through hole, the locking bolt is arranged in the threaded hole, the locking bolt drives the locking column to lock the connecting head through the threaded hole, and the end of the locking column is provided with an arc-shaped abutting groove.

5. A high-strength double-row rocker bearing according to claim 4, characterized in that: The locking bolt is provided with a connecting disk, the locking column and the locking bolt are connected via the connecting disk, the locking column is provided with a connecting notch, a limiting column is provided in the connecting notch, the connecting disk is provided with a limiting groove, and the limiting column is limited in the limiting groove.

6. The high-strength double-row rocker bearing according to claim 1, characterized in that: The oil storage channel includes an oil inlet channel, a connecting channel, an oil storage tank and a branch channel. A sealing cover is provided at the end of the oil inlet channel. The oil inlet channel is communicated with the connecting channel, and the connecting channel is communicated with the oil storage tank. The oil storage tank is used to store lubricating oil. The branch channel is communicated with the oil storage tank. The lubricating oil in the oil storage tank falls between the inner ring of the bearing and the outer ring of the bearing through the branch channel to lubricate the ball.

7. The high-strength double-row rocker bearing according to claim 1, characterized in that: The retainer includes a fixing ring and a connecting ring, the fixing ring is provided with a first arc groove on both sides, the connecting ring is provided with a second arc groove, the first arc groove and the second arc groove are matched, the ball is limited between the first arc groove and the second arc groove, the connecting ring and the fixing ring are correspondingly provided with fixing holes, and the connecting ring and the fixing ring are installed and fixed by combining the fixing holes with screws.

8. The high-strength double-row rocker bearing according to claim 1, characterized in that: It also includes dustproof rings, which are located on both sides of the bearing outer ring and are used to prevent dust from entering between the bearing outer ring and the bearing inner ring.

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