Rotary support bearing with support structure

Abstract

The utility model discloses a slewing support bearing with a support structure, which belongs to the technical field of bearings and comprises a bearing outer ring and a bearing inner ring, cover plates are arranged at the tops and the bottoms of the bearing outer ring and the bearing inner ring, four threaded holes are formed in the top and the bottom of the bearing outer ring, and the cover plates are arranged in the threaded holes. The threaded holes penetrate through the two cover plates at the top and the bottom, supporting rings are arranged on the cover plates, and a plurality of round holes are formed in the surfaces of the supporting rings. According to the rotary supporting bearing with the supporting structure, the retainer, the supporting rings and the supporting rollers are arranged, the retainer enables the bearing to move according to a specified track, the two supporting rings at the top and the bottom of the bearing inner ring support the bearing inner ring, and the positions of the supporting rings are fixed through the cover plate; and a plurality of supporting rollers and the inner ring of the bearing are used for rolling supporting, so that the bearing is prevented from shaking in the using process, and the accuracy and the stability of the bearing in the using process are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, in particular to a slewing support bearing with a supporting structure. Background Art

[0002] In various mechanical equipment, the slewing bearing can withstand large axial force, radial force and overturning moment at the same time. The slewing bearing can achieve large-angle rotation to meet the needs of equipment in different working positions. At the same time, the high strength and large load-bearing capacity of the slewing bearing enable it to adapt to various harsh working environments.

[0003] The prior art is not convenient for supporting the slewing support bearing, and it is easy to shake during use, which reduces the accuracy and stability of the slewing support bearing. In addition, the bearing is prone to entry of debris during use, causing damage to the balls in the bearing and reducing the service life of the bearing. Utility Model Content

[0004] In order to overcome the above defects, the utility model provides a slewing support bearing with a supporting structure, which solves the problem that the slewing support bearing is inconvenient to support in the prior art, is prone to shaking during use, and reduces the accuracy and stability of the slewing support bearing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slewing support bearing with a support structure, comprising a bearing outer ring and a bearing inner ring, the bearing outer ring and the bearing inner ring are provided with a retaining frame, the retaining frame is arranged close to the bearing inner ring, a circular groove is provided on the surface of the retaining frame, the top and bottom of the bearing outer ring and the bearing inner ring are provided with a cover plate, the top and bottom of the bearing outer ring are provided with four threaded holes, the threaded holes penetrate the two cover plates at the top and the bottom, a support ring is provided on the cover plate, a plurality of circular holes are provided on the surface of the support ring, and support rollers are rotatably installed in the circular holes.

[0006] As a further solution of the utility model: the circular grooves are arranged in a plurality and are evenly distributed on the surface of the retaining frame, and balls are rotatably connected in the circular grooves.

[0007] As a further solution of the utility model: the inner surface of the bearing outer ring and the outer surface of the bearing inner ring are both provided with arc grooves, and the arc grooves are in rolling contact with the balls.

[0008] As a further solution of the utility model: a bolt is threadedly connected to the threaded hole, and the inner diameter of the cover plate is smaller than the inner diameter of the bearing inner ring.

[0009] As a further solution of the utility model: the inner diameter of the support ring is larger than the outer diameter of the inner ring of the bearing, and the plurality of circular holes are evenly distributed on the surface of the support ring.

[0010] As a further solution of the utility model: the center of the support roller is located close to the inner side of the support ring, and the surface of the support roller is in rolling contact with the outer side of the inner ring of the bearing.

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

[0012] 1. The slewing support bearing with a support structure is provided with a cage, a support ring and a support roller. The cage enables the bearing to move along a prescribed track. The two support rings at the top and bottom of the inner ring of the bearing support the inner ring of the bearing. The position of the support ring is fixed by a cover plate. Then, a plurality of support rollers are used to provide rolling support with the inner ring of the bearing, thereby avoiding shaking of the bearing during use and improving the accuracy and stability of the bearing during use.

[0013] 2. The slewing support bearing with a supporting structure is provided with threaded holes, bolts and cover plates. The cover plate can be fixed by the cooperation between the outer ring of the bearing and the bolts. The cover plate covers the space between the outer ring of the bearing and the inner ring of the bearing, thereby avoiding damage to the bearing due to the entry of debris during the use of the bearing and increasing the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the outer ring of the bearing of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the cover plate of the utility model;

[0017] In the figure: 1. outer ring of bearing; 2. inner ring of bearing; 3. arc groove; 4. retaining frame; 5. circular groove; 6. ball; 7. threaded hole; 8. bolt; 9. cover plate; 10. support ring; 11. circular hole; 12. support roller. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] like Figure 1-3As shown, the utility model provides a technical solution: a slewing support bearing with a supporting structure, comprising a bearing outer ring 1 and a bearing inner ring 2, wherein the bearing outer ring 1 and the bearing inner ring 2 are provided with a retainer 4, the retainer 4 is arranged close to the bearing inner ring 2, a circular groove 5 is opened on the surface of the retainer 4, a plurality of circular grooves 5 are arranged and evenly distributed on the surface of the retainer 4, a ball 6 is rotatably connected in the circular groove 5, the bearing outer ring 1, the bearing inner ring 2 and the ball 6 cooperate with each other to form a bearing, the retainer 4 limits and protects the ball 6, avoids mutual friction between the multiple balls 6, reduces the wear and heat generation of the ball 6, and at the same time the retainer 4 can share the force acting on the ball 6.

[0020] The inner surface of the bearing outer ring 1 and the outer surface of the bearing inner ring 2 are both provided with arc grooves 3, and the arc grooves 3 are in rolling contact with the balls 6. Due to the arc grooves 3, multiple balls 6 can be limited so that the balls 6 roll along a fixed trajectory, avoiding deviation during rotation.

[0021] Cover plates 9 are provided at the top and bottom of the bearing outer ring 1 and the bearing inner ring 2. Four threaded holes 7 are opened at the top and bottom of the bearing outer ring 1. The threaded holes 7 penetrate the two cover plates 9 at the top and bottom. Bolts 8 are connected to the threads in the threaded holes 7. The inner diameter of the threaded holes 7 is smaller than the inner diameter of the bearing inner ring 2. Since the inner diameter of the threaded holes 7 is smaller than the inner diameter of the bearing inner ring 2, the cover plate 9 can completely cover the space between the bearing outer ring 1 and the bearing inner ring 2. Then, the cover plate 9 can protect the interior of the bearing outer ring 1 and the bearing inner ring 2 to prevent the internal lubricating oil from flowing out and the external impurities from entering. The threaded holes 7 and the bolts 8 are set to fix the cover plate 9.

[0022] A support ring 10 is provided on the cover plate 9, and a plurality of circular holes 11 are opened on the surface of the support ring 10. The inner diameter of the support ring 10 is larger than the outer diameter of the bearing inner ring 2. The plurality of circular holes 11 are evenly distributed on the surface of the support ring 10. Since the inner diameter of the support ring 10 is larger than the outer diameter of the bearing inner ring 2, direct contact between the support ring 10 and the bearing inner ring 2 to generate a large friction force and affect the rotation of the bearing inner ring 2 is avoided.

[0023] A support roller 12 is rotatably installed in the circular hole 11, and the center of the support roller 12 is located near the inner side of the support ring 10. The surface of the support roller 12 is in rolling contact with the outer side of the bearing inner ring 2. Since the center of the support roller 12 is located near the inner side of the support ring 10, the support ring 10 can provide an inward thrust to multiple support rollers 12, thereby preventing the support rollers 12 from falling through the circular hole 11. The cooperation of the support rollers 12 and the cover plate 9 can support the bearing outer ring 1 and the bearing inner ring 2 to prevent them from shaking when rotating.

[0024] The working principle of the utility model is as follows: before use, the cover plate 9 is released by rotating the bolts 8, lubricating oil is injected into the interior of the multi-bearing outer ring 1 and the bearing inner ring 2, and then the cover plate 9 is fixed by the bolts 8. When in use, the rotation of the bearing inner ring 2 drives the balls 6 and the support rollers 12 to roll in contact with the arc groove 3 and one side of the bearing inner ring 2, so that the balls 6 and the support rollers 12 rotate with the circular groove 5 and the circular hole 11. Under the action of the two arc grooves 3, the multiple balls 6 rotate in the arc groove 3 according to a fixed trajectory.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A slewing bearing with a support structure, comprising a bearing outer ring (1) and a bearing inner ring (2), characterized in that: The bearing outer ring (1) and the bearing inner ring (2) are provided with a retaining frame (4), the retaining frame (4) is arranged close to the bearing inner ring (2), a circular groove (5) is provided on the surface of the retaining frame (4), the top and bottom of the bearing outer ring (1) and the bearing inner ring (2) are provided with a cover plate (9), the top and bottom of the bearing outer ring (1) are provided with four threaded holes (7), the threaded holes (7) penetrate the two cover plates (9) at the top and bottom, the cover plate (9) is provided with a support ring (10), the surface of the support ring (10) is provided with a plurality of circular holes (11), and a support roller (12) is rotatably installed in the circular hole (11).

2. The slewing bearing with a support structure according to claim 1, characterized in that: The circular grooves (5) are arranged in plurality and are evenly distributed on the surface of the retaining frame (4), and a ball (6) is rotatably connected in the circular groove (5).

3. The slewing bearing with a support structure according to claim 2, characterized in that: The inner surface of the bearing outer ring (1) and the outer surface of the bearing inner ring (2) are both provided with arc grooves (3), and the arc grooves (3) are in rolling contact with the balls (6).

4. The slewing bearing with a support structure according to claim 1, characterized in that: The threaded hole (7) is internally threadedly connected with a bolt (8), and the inner diameter of the cover plate (9) is smaller than the inner diameter of the bearing inner ring (2).

5. The slewing bearing with a support structure according to claim 1, characterized in that: The inner diameter of the support ring (10) is greater than the outer diameter of the bearing inner ring (2), and the plurality of circular holes (11) are evenly distributed on the surface of the support ring (10).

6. The slewing bearing with a support structure according to claim 1, characterized in that: The center of the support roller (12) is located close to the inner side of the support ring (10), and the surface of the support roller (12) is in rolling contact with the outer side of the bearing inner ring (2).

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