Double-row eccentric thrust bearing

Abstract

The utility model discloses a double-row eccentric thrust bearing which comprises a ferrule and a locking mechanism, a retainer is arranged on the ferrule, a plurality of rolling bodies are installed on the retainer in a rolling mode, the ferrule comprises a first ring body and a second ring body, installation grooves are formed in the first ring body and the second ring body respectively, and the locking mechanism is arranged on the first ring body and the second ring body. Annular grooves are formed in the outer wall of the first ring body and the outer wall of the second ring body, and the locking mechanism is arranged on the ferrule. Through the cooperation of the fixed ring, the locking rod, the locking groove, the movable ring, the clamping groove and other parts, when the first ring body and the second ring body are spliced and installed, the movable ring can be clamped into the locking groove of the locking rod through the arranged clamping groove when the movable ring rotates, so that the movable ring and the locking rod are clamped and fixed, and the service life of the ring body is prolonged. And the first ring body and the second ring body are conveniently spliced and fixed, so that the first ring body and the second ring body are convenient to splice and disassemble, and the rolling body and the retainer are convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a double-row eccentric thrust bearing. Background Art

[0002] The eccentric bearing mainly includes a ring body, a rolling element basket, and a rolling element. The eccentric bearing has a simple structure and is easy to use, which greatly simplifies the eccentric mechanism. At the same time, it saves labor and time in the machining of the eccentric mechanism and makes it easy to assemble. The application of eccentric bearings: reducers, petrochemicals, textiles, metallurgy, mining, steel mills, light and heavy machinery, etc.

[0003] At present, it is inconvenient to disassemble and assemble the rolling elements and the cage of the double-row eccentric thrust bearing, which increases the time for daily maintenance or replacement, thereby reducing the work efficiency of the staff. Utility Model Content

[0004] The purpose of the utility model is to provide a double-row eccentric thrust bearing to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a double-row eccentric thrust bearing, comprising:

[0006] A ferrule, wherein a retaining frame is arranged on the ferrule, and a plurality of rolling bodies are rollingly mounted on the retaining frame, wherein the ferrule comprises a first ring body and a second ring body, wherein the first ring body and the second ring body are arranged in close contact, and a mounting groove is provided on each of the first ring body and the second ring body, and an annular groove is provided on the outer wall of each of the first ring body and the second ring body, and a plurality of annular through grooves equidistantly distributed are provided on the inner wall of the annular groove;

[0007] The locking mechanism is arranged on the ring, and the locking mechanism includes a fixed ring and a movable ring. The fixed ring is arranged in the annular groove of the second ring body, and a plurality of annular locking rods equidistantly distributed are fixedly welded on the fixed ring. The plurality of locking rods are movably inserted in the plurality of through grooves respectively, and a locking groove is provided on one end of the plurality of locking rods away from the fixed ring.

[0008] Preferably, the movable ring is arranged in the annular groove of the first ring body, a plurality of clamping grooves are provided on the movable ring, and a plurality of locking rods are movably clamped in the plurality of clamping grooves respectively.

[0009] Preferably, a groove is provided on the outer wall of the first circle body, a sliding rod is fixedly welded in the groove, a moving block is slidably connected to the sliding rod, an elastic spring is sleeved on the sliding rod, two ends of the elastic spring are respectively fixedly connected to the inner wall of the groove and the moving block, a limiting block is fixedly welded on the moving block, the limiting block extends into the annular groove and is slidably connected to the first circle body, and a limiting groove matching the limiting block is provided on the movable ring.

[0010] Preferably, a sealing cover is clamped on the groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model cooperates with the fixed ring, the locking rod, the locking groove, the movable ring and the clamping groove, so that when the first ring body and the second ring body are spliced ​​and installed, the movable ring can be clamped into the locking groove of the locking rod when rotating through the provided clamping groove, so that the movable ring and the locking rod are clamped and fixed, which is convenient for splicing and fixing the first ring body and the second ring body, so that the first ring body and the second ring body are easy to assemble and disassemble, and the disassembly between the rolling body and the retaining frame is convenient;

[0013] 2. The elastic force of the elastic spring provided in the utility model acts on the movable block, so that the movable block can slide on the slide rod to drive the limit block to be inserted into the limit groove of the movable ring, thereby limiting and fixing the movable ring, and also facilitating the disassembly of the movable ring, thereby improving the convenience of disassembly and assembly of the first circle body and the second circle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a double-row eccentric thrust bearing proposed by the utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of an annular groove in a double-row eccentric thrust bearing proposed by the utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the split fixed ring and movable ring in a double-row eccentric thrust bearing proposed by the utility model;

[0017] Figure 4 The utility model discloses a cross-sectional side view of the structure of the connection between the moving block and the limiting block in a double-row eccentric thrust bearing.

[0018] In the figure: 1. ring; 2. retaining frame; 3. rolling body; 4. first ring body; 5. second ring body; 6. mounting groove; 7. annular groove; 8. through groove; 9. fixing ring; 10. locking rod; 11. locking groove; 12. movable ring; 13. snap-fit ​​groove; 14. groove; 15. sliding rod; 16. moving block; 17. elastic spring; 18. limit block; 19. sealing cover. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a double-row eccentric thrust bearing, comprising:

[0021] A ferrule 1, wherein a retaining frame 2 is disposed on the ferrule 1, and a plurality of rolling bodies 3 are rollingly mounted on the retaining frame 2, wherein the ferrule 1 comprises a first ring body 4 and a second ring body 5, wherein the first ring body 4 and the second ring body 5 are fitted together, and mounting grooves 6 are provided on the first ring body 4 and the second ring body 5, and an annular groove 7 is provided on the outer wall of the first ring body 4 and the second ring body 5, and a plurality of annular through grooves 8 equidistantly distributed are provided on the inner wall of the annular groove 7;

[0022] The locking mechanism is arranged on the ring 1, and the locking mechanism includes a fixed ring 9 and a movable ring 12. The fixed ring 9 is arranged in the annular groove 7 of the second ring body 5. A plurality of annular locking rods 10 equidistantly distributed are fixedly welded on the fixed ring 9. The plurality of locking rods 10 are movably inserted in the plurality of through grooves 8 respectively, and a locking groove 11 is provided on one end of the plurality of locking rods 10 away from the fixed ring 9.

[0023] The movable ring 12 is arranged in the annular groove 7 of the first circle body 4, and a plurality of snap-in grooves 13 are opened on the movable ring 12. The plurality of locking rods 10 are respectively movably snap-into the plurality of snap-in grooves 13. The snap-in grooves 13 can be set so that the movable ring 12 can be snapped into the locking groove 11 of the locking rod 10 when rotating, so that the movable ring 12 and the locking rod 10 are snap-fitted and fixed, so as to facilitate the splicing and fixing of the first circle body 4 and the second circle body 5.

[0024] A groove 14 is provided on the outer wall of the first circle body 4, and a slide rod 15 is fixedly welded in the groove 14. A moving block 16 is slidably connected to the slide rod 15. An elastic spring 17 is sleeved on the slide rod 15, and the two ends of the elastic spring 17 are respectively fixedly connected to the inner wall of the groove 14 and the moving block 16. A limiting block 18 is fixedly welded on the moving block 16, and the limiting block 18 extends into the annular groove 7 and is slidably connected to the first circle body 4. A limiting groove adapted to the limiting block 18 is provided on the movable ring 12. The elastic force of the elastic spring 17 acts on the moving block 16, so that the moving block 16 can slide on the slide rod 15 to drive the limiting block 18 to be movably inserted into the limiting groove of the movable ring 12, thereby limiting and fixing the movable ring 12.

[0025] A sealing cover 19 is clamped on the groove 14 , and the sealing cover 19 can cover the groove 14 to prevent dust and impurities from entering the groove 14 .

[0026] Working principle: The utility model cooperates with the provided fixing ring 9, locking rod 10, locking groove 11, movable ring 12 and clamping groove 13 and other components, so that when the first circle body 4 and the second circle body 5 are spliced ​​and installed, the provided clamping groove 13 can make the movable ring 12 snap into the locking groove 11 of the locking rod 10 when rotating, so that the movable ring 12 and the locking rod 10 are clamped and fixed, which is convenient for splicing and fixing the first circle body 4 and the second circle body 5, so that the first circle body 4 and the second circle body 5 are easy to assemble and disassemble, and the disassembly between the rolling body 3 and the retaining frame 2 is convenient. The elastic force of the provided elastic spring 17 acts on the moving block 16, which can make the moving block 16 slide on the sliding rod 15 to drive the limit block 18 to be movably inserted into the limit groove of the movable ring 12, so that the movable ring 12 is limited and fixed, and it is also convenient to disassemble the movable ring 12, thereby improving the convenience of disassembly and assembly of the first circle body 4 and the second circle body 5.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-row eccentric thrust bearing, characterized in that: include: A ferrule (1), wherein a retaining frame (2) is arranged on the ferrule (1), and a plurality of rolling bodies (3) are rollingly mounted on the retaining frame (2); the ferrule (1) comprises a first ring body (4) and a second ring body (5); the first ring body (4) and the second ring body (5) are arranged in close contact with each other; a mounting groove (6) is provided on each of the first ring body (4) and the second ring body (5); an annular groove (7) is provided on the outer wall of each of the first ring body (4) and the second ring body (5); and a plurality of annular through grooves (8) equidistantly distributed are provided on the inner wall of the annular groove (7); A locking mechanism is arranged on the ferrule (1), and comprises a fixed ring (9) and a movable ring (12). The fixed ring (9) is arranged in an annular groove (7) of the second ring body (5). A plurality of locking rods (10) are fixedly welded to the fixed ring (9) and are equidistantly distributed in annular shapes. The plurality of locking rods (10) are respectively and movably inserted into a plurality of through grooves (8). The ends of the plurality of locking rods (10) away from the fixed ring (9) are all provided with locking grooves (11).

2. A double-row eccentric thrust bearing according to claim 1, characterized in that: The movable ring (12) is arranged in the annular groove (7) of the first ring body (4), and a plurality of clamping grooves (13) are provided on the movable ring (12). The plurality of locking rods (10) are respectively and movably clamped in the plurality of clamping grooves (13).

3. A double-row eccentric thrust bearing according to claim 1, characterized in that: A groove (14) is provided on the outer wall of the first ring body (4), a slide rod (15) is fixedly welded in the groove (14), a moving block (16) is slidably connected to the slide rod (15), an elastic spring (17) is sleeved on the slide rod (15), two ends of the elastic spring (17) are respectively fixedly connected to the inner wall of the groove (14) and the moving block (16), a limiting block (18) is fixedly welded on the moving block (16), the limiting block (18) extends into the annular groove (7) and is slidably connected to the first ring body (4), and a limiting groove matching the limiting block (18) is provided on the movable ring (12).

4. A double-row eccentric thrust bearing according to claim 3, characterized in that: A sealing cover (19) is clamped on the groove (14).

Images