CN212055678U

CN212055678U - Roller chain

Info

Publication number: CN212055678U
Application number: CN202020676084.1U
Authority: CN
Inventors: 王国亮; 王国福; 虞艳; 朱全荣; 王希麟; 芦春生
Original assignee: Zhenjiang Hengda Machinery Co Ltd
Current assignee: Zhenjiang Hengda Machinery Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-12-01
Anticipated expiration: 2030-04-28

Abstract

The utility model belongs to the technical field of the chain, especially, relate to a roller chain, including outer link joint, inner link joint, roller, round pin axle and sleeve, the roller chain is cooperated a set of respectively by roller both ends outer link joint, inner link joint, sleeve and round pin axle and constitutes, the sleeve runs through the roller, and the round pin axle runs through the mounting hole on sleeve and outer link joint and the inner link joint, the roller includes contact site, upper protection portion and lower protection portion set up respectively in the length direction both ends of contact site, and upper protection portion and lower protection portion and the contact site integrated into one piece; the utility model discloses a cooperation design of upper protection portion, lower protection portion, first oil groove, oil through hole, second oil groove and third oil groove etc. has not only protected the inner plate in the chain use, improves the life of chain, has still seted up the passing through and the storage of a plurality of oil through grooves lubricating oil of being convenient for, has improved the lubricated effect between each subassembly of chain greatly, and simple structure is fit for promoting.

Description

Roller chain

Technical Field

The utility model relates to a chain technical field especially relates to a 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 generally comprises inner chain plates, outer chain plates, pin shafts, sleeves and rollers, the inner chain plates are easy to contact with the chain wheels in the using process of the existing roller chain, certain influence is caused on the service life of the chain, the existing roller chain needs to be oiled regularly in the using process of the chain to keep a good lubricating effect, but the lubricating effect is poor due to the structure of the chain, and the roller chain is provided in the application and long in service life and has a good lubricating effect for solving the problems.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a roller chain has the characteristics of good lubricated effect.

(II) technical scheme

In order to solve the problems, the utility model provides a roller chain, including outer chain plate, inner chain plate, roller, round pin axle and sleeve, roller chain is by roller both ends cooperation a set of respectively outer chain plate, inner chain plate, sleeve and round pin axle are constituteed, the sleeve runs through the roller, and the round pin axle runs through the mounting hole on sleeve and outer chain plate and the inner chain plate, the roller includes contact site, upper protection portion and lower protection portion set up respectively in the length direction both ends of contact site, and upper protection portion and lower protection portion and the contact site integrated into one piece, the roller runs through there is the centre bore, set up first oil groove along its length direction in the centre bore;

the pin shaft comprises a top end, a vertical end and a pin hole, and a second oil groove is formed in the outer wall of the vertical end along the length direction of the vertical end;

the sleeve is of a cylindrical hollow structure, and a third oil groove is formed in the outer wall of the sleeve along the length direction of the sleeve.

Preferably, a cotter pin is arranged in the pin hole.

Preferably, the upper protection part and the lower protection part are provided with at least one oil through hole in a penetrating manner along the thickness direction.

Preferably, at least one first oil groove is provided.

Preferably, at least one second oil groove is provided.

Preferably, the contact portion is cylindrical, and the upper protection portion and the lower protection portion are both disc-shaped.

The above technical scheme of the utility model has following profitable technological effect:

the utility model discloses a cooperation design of last protection portion, lower protection portion, first oil groove, oil through hole, second oil groove and third oil groove has not only protected the inner link board in the chain use, improves the life of chain, has still seted up the passing through and the storage of a plurality of oil through grooves lubricating oil of being convenient for, has improved the lubricated effect between each subassembly of chain greatly, and simple structure is fit for promoting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic perspective view of a roller according to the present invention;

fig. 3 is a schematic perspective view of the pin shaft of the present invention;

fig. 4 is a schematic perspective view of the sleeve according to the present invention;

wherein: 1. an outer link plate; 2. an inner link plate; 301. a contact portion; 302. an upper protection part; 303. a lower protection part; 304. a central bore; 305. a first oil groove; 306. an oil through hole; 401. A top end; 402. a vertical end; 403. a pin hole; 404. a second oil groove; 5. a sleeve; 501. a third oil groove; 6. and a cotter pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the utility model provides a roller chain, including outer link joint 1, inner plate 2, roller, round pin axle and sleeve 5, all be equipped with the mounting hole on outer link joint 1 and the inner plate 2 and be used for the round pin axle to run through fixedly, the roller chain is by a set of roller both ends cooperation respectively outer link joint 1, inner plate 2, sleeve 5 and round pin axle are constituteed, sleeve 5 runs through the roller, and the round pin axle runs through the mounting hole on sleeve 5 and outer link joint 1 and the inner plate 2, is fixed by the split pin again, and this is the general connected mode of current roller chain, no longer gives unnecessary details here. The roller comprises a contact part 301, an upper protection part 302 and a lower protection part 303, the contact part 301 is in a cylindrical shape and is used for contacting a chain wheel, the upper protection part 302 and the lower protection part 303 are both in a disc shape and can prevent the chain wheel from contacting the inner chain plate 2 and reduce the abrasion of the inner chain plate 2, the upper protection part 302 and the lower protection part 303 are respectively arranged at two ends of the contact part 301 in the length direction, the upper protection part 302 and the lower protection part 303 are integrally formed with the contact part 301, a central hole 304 penetrates through the roller, the central hole 304 is used for a sleeve 5 to penetrate through, a first oil groove 305 is formed in the central hole 304 along the length direction, after the sleeve 5 penetrates through the roller, the first oil groove 305 can store a part of lubricating oil through coating, four oil through holes 306 penetrate through the upper protection part 302 and the lower protection part 303 in the thickness direction, and the lubricating effect between the roller and the inner chain plate;

the pin shaft comprises a top end 401, a vertical end 402 and a pin hole 403, a second oil groove 404 is formed in the outer wall of the vertical end 402 along the length direction of the vertical end, and the second oil groove 404 can store a part of lubricating oil so as to improve the lubricating effect between the pin shaft and the sleeve 5;

the sleeve 5 is a cylindrical hollow structure, and the outer wall of the sleeve 5 is provided with a third oil groove 501 along the length direction, so that lubricating oil can be used for storing a part of the lubricating oil, and the lubricating effect between the sleeve 5 and the roller is improved.

A cotter pin 6 is provided in the pin hole 403 for fastening the chain after assembling.

The first oil groove 305 and the second oil groove 404 may be provided in plurality, but at least one of them is provided.

The working principle is as follows: the utility model discloses in, as shown in fig. 1, make outer chain plate 1, the centre bore 304 of the alignment roller of mounting hole on the inner chain plate 2, utilize sleeve 5 to run through the back respectively, pinhole 403 one end that utilizes the round pin axle runs through sleeve 5, reuse split pin 6 passes pinhole 403, accomplish the equipment of chain, after sleeve 5 runs through the roller, first oil groove 305 can be through the lubricating oil of scribbling and store partly, go up protection part 302 and lower protection part 303 and run through the oil through hole 306 that sets up along the thickness direction, can improve the lubricating effect between roller and the inner chain plate 2, second oil groove 404 can be through lubricating oil and save partly, improve the lubricated effect between round pin axle and chain plate and the sleeve 5, third oil groove 501 also can be through lubricating oil and store partly, improve the lubricated effect between sleeve 5 and the roller.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A roller chain comprises an outer chain plate (1), an inner chain plate (2), rollers, pin shafts and sleeves (5), the roller chain is composed of a group of outer chain plates (1), inner chain plates (2), sleeves (5) and pin shafts which are respectively matched with two ends of a roller, the sleeves (5) penetrate through the roller, and the pin shaft penetrates through the sleeve (5) and the mounting holes on the outer chain plate (1) and the inner chain plate (2), characterized in that the roller comprises a contact part (301), an upper protection part (302) and a lower protection part (303), the upper protection part (302) and the lower protection part (303) are respectively arranged at two ends of the contact part (301) in the length direction, and an upper protection part (302) and a lower protection part (303) are integrally formed with the contact part (301), a central hole (304) penetrates through the roller, and a first oil groove (305) is formed in the central hole (304) along the length direction of the central hole;

the pin shaft comprises a top end (401), a vertical end (402) and a pin hole (403), and a second oil groove (404) is formed in the outer wall of the vertical end (402) along the length direction of the vertical end;

the sleeve (5) is of a cylindrical hollow structure, and a third oil groove (501) is formed in the outer wall of the sleeve (5) along the length direction of the sleeve.

2. A roller chain according to claim 1, characterized in that a cotter pin (6) is arranged in the pin hole (403).

3. A roller chain according to claim 1, wherein each of the upper guard (302) and the lower guard (303) is provided with at least one oil passage hole (306) therethrough in the thickness direction.

4. A roller chain according to claim 1, wherein at least one first oil groove (305) is provided.

5. A roller chain according to claim 1, wherein at least one second oil groove (404) is provided.

6. A roller chain according to claim 1, wherein the contact portion (301) has a cylindrical shape, and the upper protector portion (302) and the lower protector portion (303) each have a disk-like shape.