Sliding bearing with internal and external through-flow structure

Abstract

The utility model provides a sliding bearing with an inner and outer through-flow structure, which comprises a bracket bearing component, a rotating shaft positioning component, a shaft hole positioning component, an inner side storage component, an outer side storage component and a through-flow rotary connection component, and an inner side notch of the sliding bearing forms a lubricating grease storage space between a rotating shaft and the bearing. The outer notch forms a lubricating grease storage space between the bearing and the shaft hole, the lubricating grease is conveyed to the position between the positioning ring groove and the positioning convex ring, the positioning ring groove and the positioning convex ring are lubricated, and therefore the lubricating grease can be prevented from being blocked or meshed. Through the synergistic effect of the inner side notch and the outer side notch, lubricating grease can dynamically flow inside and outside the bearing to form a circulating lubricating system, the bearing capacity, the operation stability and the reliability of the bearing are improved, the service life of the bearing is prolonged, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating bearing part, especially a sliding bearing with inner and outer through-flow structure. BACKGROUND

[0002] The rolled bearing is a kind of sliding bearing processed by stamping and rolling process from sheet, usually adopts low-carbon steel as matrix, plating a layer of wear-resistant material such as copper alloy or polymer on surface, forms cylindrical structure. Its structural features include lightweight, low cost and high performance-price ratio, part rolled bearing also has self-lubricating layer, reduces maintenance requirement. Patent document CN202301459U discloses a copper rolled bearing, uniformly arranged circular lubricating holes are made on matrix, and concave-convex combined clamping opening parallel to axial direction is opened on matrix, bearing matrix is bronze plate, uniformly arranged circular lubricating holes are made on matrix, and lubricating material composed of polytetrafluoroethylene and carbon fiber material is filled in hole. SUMMARY

[0003] The utility model aims at providing a sliding bearing with inner and outer through-flow structure to improve its running performance.

[0004] The utility model provides a sliding bearing with inner and outer through-flow structure, which comprises:

[0005] A sliding bearing with inner and outer through-flow structure, which comprises:

[0006] A supporting and bearing member, which is matched with the shape of the rotating shaft and the mounting hole, can be assembled in the shaft hole of the equipment, and the rotating shaft can be assembled in the supporting and bearing member, and the rotating shaft is supported by the supporting and bearing member;

[0007] A rotating shaft positioning member, which is located in the supporting and bearing member and is matched with the shape of the positioning structure in the rotating shaft, and the rotating shaft is positioned by the rotating shaft positioning member in the supporting and bearing member;

[0008] A shaft hole positioning member, which is located in the supporting and bearing member and is matched with the shape of the positioning structure in the shaft hole, and the shaft hole is positioned by the shaft hole positioning member in the supporting and bearing member;

[0009] An inner side storage member, which is located in the supporting and bearing member and cooperates with the rotating shaft to form an inner side grease storage space between the inner side storage member and the rotating shaft;

[0010] An outer side storage member, which is located in the supporting and bearing member and cooperates with the shaft hole to form an outer side grease storage space between the outer side storage member and the shaft hole;

[0011] A through-flow adapter member is located in the support carrier member and communicates with the inner storage member and the outer storage member, and the lubricating grease in the inner storage member and the outer storage member can flow through the through-flow adapter member.

[0012] Specifically, the support carrier member comprises:

[0013] A support cylinder shell is in a cylindrical structure and is formed by rolling a bronze plate, the outer wall of the support cylinder shell is located in the shaft hole, the inner wall of the support cylinder shell is sleeved on the rotating shaft, and the rotating shaft is carried by the support cylinder shell.

[0014] The rotating shaft positioning member comprises:

[0015] A pair of positioning shoulders are formed at both ends of the inner wall of the support cylinder shell and extend along the circumference of the support cylinder shell, and the positioning shoulders can abut against the positioning flanges on the rotating shaft, and the rotating shaft is axially positioned by the support cylinder shell through the positioning shoulders.

[0016] The shaft hole positioning member comprises:

[0017] A positioning ring groove is formed in the middle of the outer wall of the support cylinder shell and extends along the circumference of the support cylinder shell, and the positioning ring groove can abut against the positioning convex ring in the shaft hole, and the shaft hole is axially positioned by the support cylinder shell through the positioning ring groove.

[0018] The inner storage member comprises:

[0019] A group of inner notches are formed in the inner wall of the support cylinder shell and extend helically along the axial direction of the support cylinder shell, the two ends of each inner notch are penetrated by the positioning shoulders, an inner lubricating grease storage space is formed between the inner notches and the rotating shaft, and the lubricating grease is transported between the positioning shoulders and the positioning flanges through the inner notches.

[0020] The outer storage member comprises:

[0021] A group of outer notches are formed in the outer wall of the support cylinder shell and extend helically along the axial direction of the support cylinder shell, the middle part of each outer notch is penetrated by the positioning ring groove, an outer lubricating grease storage space is formed between the outer notches and the shaft hole, and the lubricating grease is transported between the positioning ring groove and the positioning convex ring through the outer notches.

[0022] The through-flow adapter member comprises:

[0023] Two groups of through-flow holes are formed in the support cylinder shell and are arranged on both sides of the positioning ring groove, the through-flow holes penetrate the support cylinder shell along the radial direction of the support cylinder shell, the inner wall and the outer wall of the support cylinder shell are communicated, the inner notches and the outer notches are communicated, and the lubricating grease in the inner notches and the outer notches can flow through the through-flow holes.

[0024] In one embodiment of this utility model, the spiral direction of the outer groove is opposite to that of the inner groove, the number of outer grooves is greater than the number of inner grooves, and the width of the outer groove is less than the width of the inner groove.

[0025] The advantages of this utility model are:

[0026] The inner groove of this sliding bearing forms a grease storage space between the shaft and the bearing, and delivers the grease to the area between the locating shoulder and the locating flange. This ensures a lubricating film forms on the contact surface between the shaft and the inner wall of the bearing, reducing friction and wear. Simultaneously, it lubricates the locating shoulder and the locating flange, preventing jamming or seizing, and ensuring the stability of the shaft's axial positioning. The outer groove forms a grease storage space between the bearing and the shaft hole, and delivers the grease to the area between the locating ring groove and the locating ring. This ensures a lubricating film forms on the contact surface between the bearing's outer wall and the shaft hole, reducing friction and wear. Simultaneously, it lubricates the locating ring groove and the locating ring, preventing jamming or seizing, and ensuring the stability of the bearing's axial positioning. Through the synergistic effect of the inner and outer grooves, the grease can dynamically flow inside and outside the bearing, forming a circulating lubrication system. This adapts to high speed, high load, and complex operating conditions, reducing friction and heat accumulation, improving the bearing's load-bearing capacity, operational stability, and reliability, extending bearing service life, and reducing maintenance costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the sliding bearing with an internal and external flow passage structure proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the bearing. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] like Figure 1 , Figure 2As shown, the sliding bearing with an internal and external flow structure proposed in this utility model includes a support bearing component, a shaft positioning component, a shaft hole positioning component, an inner storage component, an outer storage component, and a flow-through transition component. The support bearing component is adapted to the shape of the shaft and the mounting hole, and can be assembled into the shaft hole of the equipment. The shaft can also be assembled into the support bearing component, and the support bearing component supports the shaft. The shaft positioning component is located in the support bearing component, and its shape is adapted to the positioning structure in the shaft. The support bearing component can position the shaft through the shaft positioning component. The shaft hole positioning component is located in the support bearing component. It is adapted to the shape of the positioning structure in the shaft hole. The shaft hole can position the support bearing member through the shaft hole positioning member. The inner storage member is located in the support bearing member and cooperates with the rotating shaft. An inner grease storage space is formed between the inner storage member and the rotating shaft. The outer storage member is located in the support bearing member and cooperates with the shaft hole. An outer grease storage space is formed between the outer storage member and the shaft hole. The flow transfer member is located in the support bearing member and communicates with the inner storage member and the outer storage member. The grease in the inner storage member and the outer storage member can flow to each other through the flow transfer member.

[0031] In this embodiment, the support bearing component includes a support cylinder shell 100. The support cylinder shell has a cylindrical structure and is formed by rolling bronze sheet. Its outer wall is placed in the shaft hole, and its inner wall is sleeved on the rotating shaft. It can rotate between the shaft hole and the rotating shaft, and the support cylinder shell supports the rotating shaft.

[0032] The pivot positioning component includes a positioning shoulder 200. There is a pair of positioning shoulders, each of which is formed at both ends of the inner wall of the support cylinder shell and extends along the circumference of the support cylinder shell. It can abut against the positioning flange on the pivot shaft. The support cylinder shell axially positions the pivot shaft through the positioning shoulders.

[0033] The shaft hole positioning component includes a positioning ring groove 300, which is formed in the middle of the outer wall of the support cylinder shell and extends along the circumference of the support cylinder shell. It can abut against the positioning protrusion in the shaft hole, and the shaft hole axially positions the support cylinder shell through the positioning ring groove.

[0034] The inner storage component includes an inner groove 400. A set of inner grooves are provided. Each inner groove is formed on the inner wall of the support cylinder shell and extends spirally along the axial direction of the support cylinder shell. Both ends of the grooves are connected to the positioning shoulder. An inner grease storage space is formed between the inner groove and the rotating shaft, and the grease is transported through the inner groove to the space between the positioning shoulder and the positioning flange.

[0035] The outer storage component includes an outer groove 500. A set of outer grooves are provided. Each outer groove is formed on the outer wall of the support cylinder shell and extends spirally along the axial direction of the support cylinder shell. Its middle part is connected to the positioning ring groove. An outer grease storage space is formed between the outer groove and the shaft hole, and the grease is transported through the outer groove to the positioning ring groove and the positioning protrusion ring.

[0036] The flow-through connecting component includes flow-through orifices 600. There are two sets of flow-through orifices, each set of which is opened in the support cylinder shell and is arranged on both sides of the positioning ring groove. They penetrate both sides of the support cylinder shell radially, connecting the inner wall and the outer wall of the support cylinder shell, and connecting the inner groove and the outer groove. The grease in the inner groove and the outer groove can flow through each other through the flow-through orifices.

[0037] In this embodiment, the spiral direction of the outer groove is opposite to that of the inner groove, the number of outer grooves is greater than the number of inner grooves, and the width of the outer groove is less than the width of the inner groove.

[0038] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A sliding bearing with an internal and external flow passage structure, characterized in that, include: A support bearing member is provided, which is adapted to the shape of the rotating shaft and the mounting hole. It can be assembled into the shaft hole of the equipment, and the rotating shaft can be assembled into the support bearing member, which supports the rotating shaft. A pivot positioning component is located in the support bearing component and its shape is adapted to the positioning structure in the pivot. The support bearing component can position the pivot through the pivot positioning component. A shaft hole positioning component is located in the support bearing component. Its shape is adapted to the positioning structure in the shaft hole. The shaft hole can position the support bearing component through the shaft hole positioning component. An inner storage component is located in the support bearing component and cooperates with the rotating shaft to form an inner grease storage space between the inner storage component and the rotating shaft. An outer storage component is located in the support bearing component and mates with the shaft hole, forming an outer grease storage space between the outer storage component and the shaft hole; A flow-through transition component is located in the support-bearing component and communicates with the inner storage component and the outer storage component. The grease in the inner storage component and the outer storage component can flow to each other through the flow-through transition component.

2. A sliding bearing with an internal and external flow structure according to claim 1, characterized in that, Supporting load-bearing components include: The support cylinder shell is a cylindrical structure made of rolled bronze sheet. Its outer wall is placed in the shaft hole, and its inner wall is fitted onto the rotating shaft, allowing it to rotate between the shaft hole and the rotating shaft.

3. A sliding bearing with an internal and external flow structure according to claim 2, characterized in that, The pivot positioning components include: The positioning shoulders are provided in pairs, each of which is formed at both ends of the inner wall of the support cylinder and extends circumferentially along the support cylinder, and can abut against the positioning flange on the rotating shaft.

4. A sliding bearing with an internal and external flow passage structure according to claim 2, characterized in that, Shaft hole positioning components include: The positioning ring groove is formed in the middle of the outer wall of the support cylinder shell and extends circumferentially along the support cylinder shell, and can abut against the positioning protrusion in the shaft hole.

5. A sliding bearing with an internal and external flow passage structure according to claim 3, characterized in that, The inner storage components include: The inner groove is provided in a set. Each inner groove is formed on the inner wall of the support cylinder shell and extends spirally along the axial direction of the support cylinder shell. Its two ends are respectively connected to the positioning shoulder.

6. A sliding bearing with an internal and external flow passage structure according to claim 4, characterized in that, The external storage components include: The outer groove is provided in a set. Each outer groove is formed on the outer wall of the support cylinder shell and extends spirally along the axial direction of the support cylinder shell. Its middle part is connected to the positioning ring groove.

7. A sliding bearing with an internal and external flow passage structure according to claim 5 or 6, characterized in that, The flow transition component includes: The flow passage is provided in two sets, each set of which is opened in the support cylinder shell and arranged on both sides of the positioning ring groove. It penetrates both sides of the support cylinder shell radially, connecting the inner wall and the outer wall of the support cylinder shell, and connecting the inner groove and the outer groove.

8. A sliding bearing with an internal and external flow passage structure according to claim 5 or 6, characterized in that: The spiral direction of the outer groove is opposite to that of the inner groove. The number of outer grooves is greater than the number of inner grooves, and the width of the outer grooves is less than the width of the inner grooves.

Images