CN217713339U

CN217713339U - Chain wheel type turntable bearing

Info

Publication number: CN217713339U
Application number: CN202221982003.6U
Authority: CN
Inventors: 邢孝峰; 唐军强
Original assignee: Luoyang Shengjing Precision Bearing Co ltd
Current assignee: Luoyang Shengjing Precision Bearing Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-01
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a chain wheel type turntable bearing, which comprises an inner ring; the chain wheel type turntable bearing adopts a chain wheel to carry out transmission, the transmission ratio is determined according to the tooth number of a large chain wheel and a small chain wheel, and the requirement of constant ratio transmission as gear pair transmission is realized; meanwhile, the length of the chain can be adjusted according to the design requirements of the mechanism, the transmission distance requirements required by different designs are met, the rolling performance requirements of the bearing are met by quenching the surface of the raceway of the chain wheel type turntable bearing, the chain teeth and the bearing ring are manufactured integrally, the connection between the chain wheel and the bearing is not needed to be considered, the structure is compact, and the strength and the rigidity are increased.

Description

Chain wheel type turntable bearing

Technical Field

The utility model relates to a bearing technical field specifically is a sprocket formula carousel bearing.

Background

The main standards of China for implementing the slewing bearing are as follows: JB/T10471 Rolling bearing slewing bearing and JB/T2300 slewing bearing. The turntable bearing is widely applied to various mechanical fields in China, and is widely applied to engineering machinery, wind driven generators, solar energy, filling machinery, medical machinery and the like.

Compared with the common bearing, the turntable bearing is a bearing with teeth on the outer diameter or the inner diameter, the ferrule is mainly made of high-quality carbon steel or alloy steel, the bearing raceway is subjected to induction hardening treatment to play a role in bearing load and rotation, and the gear plays a role in driving torque, so that the turntable bearing simultaneously plays dual roles of rotation of the common bearing and gear transmission.

At present, the turntable bearings specified by the two standards are transmitted through gear meshing, and after the parameters of the gear pair are determined, the center distance of the gear pair is fixed. Therefore, the application of the turntable bearing is limited because a fixed transmission ratio needs to be made on the mechanism and a mechanism for remote transmission needs to be made at the same time.

Disclosure of Invention

The utility model discloses a solve the carousel bearing of current standard structure and can't carry out remote transmission and the nonadjustable technical problem of transmission distance, develop the sprocket formula carousel bearing of a new form, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sprocket wheel type turntable bearing comprises an inner ring; the inner ring is rotatably connected with an outer ring through a rolling body arranged on the outer side surface of the inner ring, outer ring teeth are annularly and uniformly distributed on the outer side surface of the outer ring, inner ring mounting holes are annularly and uniformly distributed on the upper surface of the inner ring, and outer ring mounting holes are annularly and uniformly distributed on the upper surface of the outer ring.

Furthermore, the inner ring mounting hole is connected with the first external flange plate through a bolt.

Furthermore, the outer ring mounting hole is connected with an external second flange plate through a bolt.

Furthermore, the driving chain wheel is connected with the outer ring teeth on the outer ring through a chain.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the chain wheel type turntable bearing adopts a chain wheel for transmission, the transmission ratio is determined according to the tooth number of a large chain wheel and a small chain wheel, and the requirement of constant ratio transmission as the transmission of a gear pair is realized; meanwhile, the length of the chain can be adjusted according to the design requirements of the mechanism, the transmission distance requirements required by different designs are met, the rolling performance requirements of the bearing are met by quenching the surface of the raceway of the chain wheel type turntable bearing, the chain teeth and the bearing ring are integrally manufactured, the connection between the chain wheel and the bearing is not considered, the structure is compact, and the strength and the rigidity are increased;

2. the chain type turntable bearing is adopted for transmission, so that the mechanism design can be greatly optimized, the selectivity of the mechanism design can be increased, and the manufacturing cost and the weight of the whole machine are reduced.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic structural view of the present invention during installation.

In the figure: 1 outer ring mounting hole, 2 inner ring mounting holes, 3 inner rings, 4 rolling bodies, 5 outer rings, 6 outer ring teeth, 7 driving chain wheels and 8 chains.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in fig. 2, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. When a feature is referred to as being "disposed," "secured," or "connected" to another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, or connected to the other feature.

Referring to fig. 1-3, the present invention provides a technical solution: a sprocket wheel slewing bearing comprising an inner race 3; the inner ring 3 is rotatably connected with an outer ring 5 through a rolling body 4 arranged on the outer side surface of the inner ring, outer ring teeth 6 are annularly and uniformly distributed on the outer side surface of the outer ring 5, inner ring mounting holes 2 are annularly and uniformly distributed on the upper surface of the inner ring 3, outer ring mounting holes 1 are annularly and uniformly distributed on the upper surface of the outer ring 5, the inner ring mounting holes 2 are connected with an external first flange plate through bolts, the outer ring mounting holes 1 are connected with an external second flange plate through bolts, and a driving sprocket 7 is connected with the outer ring teeth 6 on the outer ring 5 through a chain 8.

The chain wheel type turntable bearing adopts a chain wheel to carry out transmission, the transmission ratio is determined according to the tooth number of a large chain wheel and a small chain wheel, and the requirement of fixed ratio transmission as the transmission of a gear pair is realized; meanwhile, the length of the chain can be adjusted according to the design requirements of the mechanism, and the requirements of different design on the transmission distance can be met.

The chain wheel type turntable bearing meets the requirement of the rolling performance of the bearing by quenching the surface of the raceway, the chain teeth and the bearing ring are integrally manufactured, the connection between the chain wheel and the bearing is not needed to be considered, the structure is compact, and the strength and the rigidity are increased; and (3) quenching and tempering the bearing ring, and after the sprocket is processed, performing surface quenching treatment to improve the strength and the wear resistance of the sprocket.

The common usage form of the turntable bearing is that after the motor is decelerated by a speed reducer, a pinion is driven, and then the pinion drives the turntable bearing to form a fixed center distance; in some structures which have weight limitation, safety and complete machine balancing requirements on the slewing mechanism, a motor, a speed reducer and a turntable bearing are required to be separately arranged, if gear transmission is adopted, an intermediate transition device is required, the complexity of the structure and the weight of the complete machine are increased, and the manufacturing cost is increased; therefore, in the structural designs, the chain type turntable bearing is adopted for transmission, so that the mechanism design can be greatly optimized, the selectivity of the mechanism design can be greatly increased, and the manufacturing cost and the weight of the whole machine are reduced.

This sprocket formula carousel bearing, through adopting the sprocket drive, carousel bearing plays the effect of bearing load and transmission moment of torsion, and the drive ratio is confirmed according to the number of teeth of big, little sprocket, can realize the constant ratio transmission with the gear pair transmission is the same. The chain transmission is adopted, the center distance is adjustable, the structural design requirements of the transmission distance, the complete machine balancing and the like required by design are met, and a new product structure is provided for the application of the turntable bearing.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sprocket wheel type turntable bearing is characterized in that: comprises an inner ring (3); the inner ring (3) is rotatably connected with an outer ring (5) through a rolling body (4) arranged on the outer side surface of the inner ring, outer ring teeth (6) are annularly and uniformly distributed on the outer side surface of the outer ring (5), inner ring mounting holes (2) are annularly and uniformly distributed on the upper surface of the inner ring (3), and outer ring mounting holes (1) are annularly and uniformly distributed on the upper surface of the outer ring (5).

2. A sprocket wheel slew bearing as defined in claim 1 where: the inner ring mounting hole (2) is connected with the first external flange plate through a bolt.

3. A sprocket wheel slew bearing as defined in claim 1 where: and the outer ring mounting hole (1) is connected with an external second flange plate through a bolt.

4. A sprocket wheel slew bearing as defined in claim 1 where: and outer ring teeth (6) on the outer ring (5) are connected through a chain (8) and a driving chain wheel (7).