CN215928253U

CN215928253U - Bearing bush silent roller chain

Info

Publication number: CN215928253U
Application number: CN202121479313.1U
Authority: CN
Inventors: 姚国平; 姚胜强; 蒋冬强; 吴永忠; 施芹; 姚燕芬
Original assignee: Hangzhou Sfr Technology Co ltd
Current assignee: Hangzhou Sfr Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-03-01
Anticipated expiration: 2031-06-30

Abstract

The silent roller chain of the bearing bush comprises outer single sections and inner single sections, wherein the adjacent outer single sections are connected through the inner single sections to form a chain structure, each outer single section comprises an outer chain plate and a pin shaft penetrating between the outer chain plates, each inner single section comprises an inner chain plate, a sleeve penetrating between the inner chain plates and a roller fixed outside the sleeve and positioned between the inner chain plates, the outer single sections and the inner single sections are fixedly connected in the sleeve in a penetrating manner through the pin shafts, the outer chain plates are positioned on the outer sides of the inner chain plates, and the bearing bush is arranged between the sleeve and the pin shaft. The bearing bush of the utility model prevents the pin shaft from directly contacting the sleeve, effectively eliminates noise generated by friction between the sleeve and the pin shaft, increases the oil storage space between the pin shaft and the sleeve, ensures that the oil storage between the pin shaft and the sleeve is more sufficient, and prolongs the service life of the chain. And the pin shaft is sleeved in the bearing bush, so that the gap between the pin shaft and the sleeve is reduced, the lateral swing of the chain in the rotating process is effectively reduced, and the transmission linearity is better.

Description

Bearing bush silent roller chain

Technical Field

The utility model belongs to the technical field of transmission chains, and particularly relates to a bearing bush silent roller chain.

Background

Roller chains are a type of power chain used in transmission machines, and are a type of chain drive, widely used in home, industrial and agricultural machinery, including conveyors, plotters, printing presses, automobiles, motorcycles, and bicycles. It is a simple, reliable and high-efficiency power transmission device, which is connected together by a series of short cylindrical roller chains and driven by a gear called chain wheel.

The roller chain is composed of an inner chain plate, an outer chain plate, a pin shaft, a sleeve and a roller. The inner chain plate and the sleeve, and the outer chain plate and the pin shaft are in interference fit; the roller is in clearance fit with the sleeve, and the sleeve is in clearance fit with the pin shaft. When the chain wheel is in work, the inner chain link and the outer chain link can be bent relatively, the sleeve can rotate freely around the pin shaft, and the roller is sleeved on the sleeve to reduce abrasion between the chain and the chain wheel. The traditional chain sleeve and the pin shaft are in direct contact friction, and metal friction noise can be generated.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a bush silent roller chain which is more wear-resistant, has prolonged service life and greatly reduces the noise.

The technical scheme adopted by the utility model is as follows:

the noiseless roller chain of axle bush, including outer single section and interior single section, connect through interior single section and form the chain structure between the adjacent outer single section, outer single section includes outer link joint and wears to locate the round pin axle between the outer link joint, interior single section includes the inner plate, wears to locate the sleeve between the inner plate and fixes the roller outside the sleeve and between being located the inner plate, outer single section wears to locate the sleeve internal fixation through the round pin axle with interior single section and connects, the outer link joint is located the outside of inner plate, its characterized in that: and a bearing bush is arranged between the sleeve and the pin shaft. The bearing bush of the utility model prevents the pin shaft from directly contacting the sleeve, effectively eliminates noise generated by friction between the sleeve and the pin shaft, increases the oil storage space between the pin shaft and the sleeve, ensures that the oil storage between the pin shaft and the sleeve is more sufficient, and prolongs the service life of the chain. And the pin shaft is sleeved in the bearing bush, so that the gap between the pin shaft and the sleeve is reduced, the lateral swing of the chain in the rotating process is effectively reduced, and the transmission linearity is better.

Furthermore, the bearing bush is embedded in the inner ring of the sleeve.

Furthermore, the bearing bush is of a cylindrical barrel structure.

Further, the cylinder body of the bearing bush is of a honeycomb structure. The bearing bush with the honeycomb structure is used for storing grease and reducing the grease leakage between the pin shaft and the bearing bush, so that the chain is more wear-resistant.

Further, the bearing bush is made of PE materials.

Further, a sealing element is arranged between the outer chain plate and the inner chain plate, and the sealing element is coated on the outer sides of the sleeve and the pin shaft. The sleeve outer ring is sealed by a sealing element, so that grease stored in the bearing bush is effectively prevented from flowing outwards, lubrication between the pin shaft and the bearing bush and between the pin shaft and the sleeve is more sufficient, external silt is prevented from entering the sleeve, and the service life of the chain is prolonged.

Further, the sealing element is a rubber sealing ring.

Furthermore, the outer chain plate, the inner chain plate, the pin shaft and the sleeve are all made of metal materials.

The utility model can be used not only in high-speed mechanical transmission, but also in low-speed mechanical transmission.

The utility model has the beneficial effects that:

1. the bearing bush effectively prevents the pin shaft from directly contacting with the sleeve, thereby effectively eliminating metal friction noise.

2. The sleeve outer ring is sealed by a sealing element, so that grease stored in the bearing bush is effectively prevented from flowing outwards, lubrication between the pin shaft and the bearing bush and between the pin shaft and the sleeve is more sufficient, external silt is prevented from entering the sleeve, and the service life of the chain is prolonged.

3. The bearing bush with the honeycomb structure is used for storing grease and reducing the grease leakage between the pin shaft and the bearing bush, so that the chain is more wear-resistant.

4. The pin shaft is sleeved in the bearing bush, so that the gap between the pin shaft and the sleeve is reduced, the lateral swing of the chain in the rotating process is effectively reduced, and the transmission linearity is better.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an inner single section of the present invention.

Fig. 3 is a schematic structural view of the sleeve of the present invention.

Fig. 4 is a schematic structural diagram of the bearing bush of the present invention.

Detailed Description

The present invention is further illustrated by the following examples, which are not intended to limit the utility model to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, the present embodiment provides a bearing bush silent roller chain, including outer single sections and inner single sections, adjacent outer single sections are connected through inner single sections to form a chain structure, the outer single sections include outer link plates 1 and pin shafts 5 penetrating between the outer link plates 1, the inner single sections include inner link plates 2, sleeves 3 penetrating between the inner link plates 2, and rollers 10 fixed outside the sleeves 3 and located between the inner link plates 2, the outer single sections and the inner single sections are penetrated inside the sleeves 3 through the pin shafts 5 and fixedly connected, and the outer link plates 1 are located outside the inner link plates 2; the outer link joint of outer single section of tip is for linking link joint 8, the outer end of connecting link joint 8 is connected through joint round pin axle 9, connect between round pin axle 9 and the adjacent round pin axle through jump ring 7 connection and fixed through jump ring 7, jump ring 7 is installed in the outside of linking link joint 8.

In this embodiment, a bearing bush 4 is disposed between the sleeve 3 and the pin 5. The bearing bush 4 may be fitted into the inner ring of the sleeve 3 and may be uniform in height with respect to the sleeve 3. The bearing bush 4 of the utility model prevents the pin shaft 5 from directly contacting the sleeve 3, effectively eliminates the noise generated by friction between the sleeve 3 and the pin shaft 5, increases the oil storage space between the pin shaft 5 and the sleeve 3, ensures that the oil storage between the pin shaft 5 and the sleeve 3 is more sufficient, and has longer service life of the chain. And the pin shaft 5 is sleeved in the bearing bush 3, so that the gap between the pin shaft 5 and the sleeve 3 is reduced, the side swing of the chain in the rotating process is effectively reduced, and the transmission linearity is better.

The bearing shell 4 of the present embodiment is made of PE material. The bearing bush 4 is of a cylindrical barrel structure. The cylinder body of the bearing bush 4 is of a honeycomb structure. The bearing bush with the honeycomb structure is used for storing grease and reducing the grease leakage between the pin shaft and the bearing bush, so that the chain is more wear-resistant.

In this embodiment, a sealing member 6 is arranged between the outer chain plate 1 and the inner chain plate 2, and the sealing member 6 is coated on the outer side of the sleeve 3 and the outer side of the pin shaft 5. The sealing member 6 may be a rubber sealing ring. The outer ring of the sleeve 3 is sealed by the sealing element 6, so that grease stored in the bearing bush 4 is effectively prevented from flowing outwards, lubrication between the pin shaft 5 and the bearing bush 4 and between the pin shaft and the sleeve 3 is more sufficient, and meanwhile, external silt is prevented from entering, so that the service life of the chain is longer.

In this embodiment, the outer chain plate 1, the inner chain plate 2, the pin shaft 5 and the sleeve 3 are all made of metal materials.

Claims

1. The noiseless roller chain of axle bush, including outer single section and interior single section, connect through interior single section and form the chain structure between the adjacent outer single section, outer single section includes outer link joint and wears to locate the round pin axle between the outer link joint, interior single section includes the inner plate, wears to locate the sleeve between the inner plate and fixes the roller outside the sleeve and between being located the inner plate, outer single section wears to locate the sleeve internal fixation through the round pin axle with interior single section and connects, the outer link joint is located the outside of inner plate, its characterized in that: and a bearing bush is arranged between the sleeve and the pin shaft.

2. The bearing-type silent roller chain of claim 1, wherein: the bearing bush is embedded in the inner ring of the sleeve.

3. The bearing-type silent roller chain of claim 1, wherein: the bearing bush is of a cylindrical barrel structure.

4. A bearing shell silent roller chain according to claim 3, characterized in that: the cylinder body of the bearing bush is of a honeycomb structure.

5. The bearing-type silent roller chain of claim 1, wherein: the bearing bush is made of PE materials.

6. A bearing-bush silent roller chain according to any one of claims 1 to 5, wherein: and a sealing element is arranged between the outer chain plate and the inner chain plate and is coated on the outer sides of the sleeve and the pin shaft.

7. The bearing-type silent roller chain of claim 6, wherein: the sealing element is a rubber sealing ring.

8. The bearing-type silent roller chain of claim 1, wherein: the outer chain plate, the inner chain plate, the pin shaft and the sleeve are all made of metal materials.