阅读说明：本技术 一种均匀耐磨套筒的滚子链条 (Roller chain with uniform wear-resistant sleeve ) 是由 张逸成 张青峰 于 2020-03-28 设计创作，主要内容包括：本发明公开了一种具有耐磨套筒的滚子链条,包括外链板、内链板和销轴,所述销轴的中部套设有套筒,所述套筒外套设有滚子,所述套筒的两端与内链板滑动连接,所述销轴的两端与外链板固定连接,所述外链板和内链板上均开设有圆孔,所述圆孔与销轴配合使用,所述外链板和内链板通过销轴和套筒首尾交替连接,所述套筒上固定设置有若干连接条,所述套筒内部沿轴向开设有与销轴配合的连接孔,所述套筒的端部套设有若干限位环,所述限位环与套筒固定连接。本发明通过设置连接条来增加套筒的耐磨性。(The invention discloses a roller chain with a wear-resistant sleeve, which comprises an outer chain plate, an inner chain plate and a pin shaft, wherein the middle part of the pin shaft is sleeved with a sleeve, a roller is sleeved outside the sleeve, two ends of the sleeve are slidably connected with the inner chain plate, two ends of the pin shaft are fixedly connected with the outer chain plate, round holes are formed in the outer chain plate and the inner chain plate respectively, the round holes are matched with the pin shaft for use, the outer chain plate and the inner chain plate are alternately connected end to end through the pin shaft and the sleeve, a plurality of connecting strips are fixedly arranged on the sleeve, a connecting hole matched with the pin shaft is formed in the sleeve along the axial direction, a plurality of limiting rings are sleeved at the end part of the sleeve, and the limiting rings are fixedly connected with the sleeve. The wear resistance of the sleeve is improved by arranging the connecting strips.)

1. The utility model provides a roller chain with wear-resisting telescopic, includes outer link joint (1), inner link joint (2) and round pin axle (3), its characterized in that: the utility model discloses a hinge pin, including round pin axle (3), sleeve (4), round pin axle (3), outer link joint (1), sleeve (4), round hole (6) have all been seted up on outer link joint (1) and the inner link joint (2), round hole (6) are used with round pin axle (3) cooperation, outer link joint (1) and inner link joint (2) are through round pin axle (3) and sleeve (4) end to end alternative connection, the fixed a plurality of connecting strips (7) that are provided with on sleeve (4), sleeve (4) inside seted up along the axial with round pin axle (3) complex connecting hole (8), the tip cover of sleeve (4) is equipped with a plurality of spacing rings (9), spacing ring (9) and sleeve (4) fixed connection.

2. A roller chain with wear resistant bushings as set forth in claim 1 wherein: the sleeve (4) is of an integrally formed structure, the number of the connecting strips (7) is not less than four, and the connecting strips (7) are distributed outside the sleeve (4) from top to bottom.

3. A roller chain with wear resistant bushings as set forth in claim 1 wherein: the height of the pin shaft (3) is larger than that of the sleeve (4), the pin shaft (3) is made of stainless steel, and the pin shaft (3) is in interference fit with the outer chain plate (1).

4. A roller chain with wear resistant bushings as set forth in claim 1 wherein: the roller (5) is connected with the connecting part of the roller (5) in a sliding manner, and lubricating grease is arranged between the connecting part of the roller (5) and the roller (5).

5. A roller chain with wear resistant bushings as set forth in claim 1 wherein: the quantity of spacing ring (9) is two, the horizontal central line of relative sleeve (4) of spacing ring (9) is the symmetric distribution, sliding connection between sleeve (4) and round pin axle (3).

6. A roller chain with wear resistant bushings as set forth in claim 1 wherein: grease is arranged between the sleeve (4) and the roller (5), and the grease is filled between the connecting strips (7).

Technical Field

The invention relates to the technical field of roller chains, in particular to a roller chain with a wear-resistant sleeve.

Background

The roller chain is a kind of chain used for transmitting mechanical power, the roller chain usually refers to the precise roller chain for short pitch transmission, it uses the widest and the most output, the roller chain has single row and multi-row, it is suitable for the small power transmission, its structure mainly includes the link joint, the roller, the bush, the pin axis, etc., the bush is the important structural component of the chain, the engagement impact is born by the roller and the bush in the use, make the roller and the bush rub, the wearability of the bush influences the service life of the chain directly. The outer wall of the sleeve of the existing chain is generally of a plane structure, and the wall thickness is thinner and thinner after the chain is worn, so that the chain is broken, and therefore a roller chain with a wear-resistant sleeve is needed to solve the problem.

Disclosure of Invention

The present invention is directed to a roller chain with wear resistant bushings that solves the problems set forth above in the background.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a roller chain with wear-resisting sleeve, includes outer link joint, inner plate and round pin axle, the middle part cover of round pin axle is equipped with the sleeve, the sleeve overcoat is equipped with the roller, telescopic both ends and inner plate sliding connection, the both ends and the outer link joint fixed connection of round pin axle, the round hole has all been seted up on outer link joint and the inner plate, the round hole uses with the cooperation of round pin axle, outer link joint and inner plate are through round pin axle and sleeve head and the tail alternative connection, the fixed a plurality of connecting strips that are provided with on the sleeve, the sleeve is inside seted up along the axial with round pin axle complex connecting hole, telescopic tip cover is equipped with a plurality of spacing rings, spacing ring and sleeve fixed connection.

Preferably, the sleeve is of an integrally formed structure, the number of the connecting strips is not less than four, and the connecting strips are distributed outside the sleeve from top to bottom.

Preferably, the height of the pin shaft is greater than that of the sleeve, and the pin shaft is made of stainless steel.

Preferably, the roller is slidably connected to the roller connecting portion, and grease is provided between the roller and the roller connecting portion.

Preferably, the number of the limiting rings is two, the limiting rings are symmetrically distributed relative to the transverse center line of the sleeve, and the sleeve is in sliding connection with the pin shaft.

Preferably, grease is provided between the sleeve and the roller, and the grease is filled between the connecting strips.

Compared with the prior art, the invention has the beneficial effects that:

1. the chain is provided with a sleeve, the sleeve is sleeved outside a pin shaft, a roller is sleeved outside the sleeve, two ends of the sleeve are fixedly provided with limiting rings, the roller is limited on the sleeve through the limiting rings, the roller is prevented from contacting with an inner chain plate along the axial movement of the sleeve, so that the roller and the inner chain plate are abraded;

2. the lubricating grease is coated at the same time, the lubricating grease is filled in gaps between the connecting strips, the lubricating grease is convenient to store, the lubricating grease can be filled between the roller and the sleeve to provide lubrication along with the abrasion of the connecting strips, and the lubricating grease has the advantages of simple structure, convenience in use and good use effect.

Drawings

FIG. 1 is a cross-sectional view of the overall construction of a roller chain having wear resistant bushings in accordance with the present invention;

FIG. 2 is a schematic view of a roller chain bushing having a wear sleeve according to the present invention;

fig. 3 is an enlarged schematic view of a roller chain a with wear-resistant bushings according to the present invention.

In the figure: 1. an outer link plate; 2. an inner link plate; 3. a pin shaft; 4. a sleeve; 5. a roller; 6. a circular hole; 7. a connecting strip; 8. connecting holes; 9. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a roller chain with wear-resisting sleeve, including outer link joint 1, inner plate 2 and round pin axle 3, the middle part cover of round pin axle 3 is equipped with sleeve 4, 4 overcoat of sleeve is equipped with roller 5, telescopic 4 both ends and 2 sliding connection of inner plate, the both ends and 1 fixed connection of outer link joint of round pin axle 3, round hole 6 has all been seted up on outer link joint 1 and the inner plate 2, round hole 6 uses with the cooperation of round pin axle 3, outer link joint 1 and inner plate 2 are through round pin axle 3 and 4 head and the tail of sleeve are connected in turn, the fixed a plurality of connecting strips 7 that are provided with on sleeve 4, sleeve 4 is inside to have seted up along the axial with 3 complex connecting holes 8 of round pin axle, sleeve 4's tip cover is equipped with a plurality of spacing rings 9, spacing ring 9 and sleeve 4 fixed connection.

The sleeve 4 is the integrated into one piece structure, and the quantity of connecting strip 7 is no less than four, and connecting strip 7 from the top down distributes in sleeve 4 outside.

The height of round pin axle 3 is greater than the height of sleeve 4, and round pin axle 3 adopts stainless steel material.

The roller 5 is connected with the roller 5 in a sliding way, and grease is filled between the roller 5 and the roller 5.

The number of the limiting rings 9 is two, the limiting rings 9 are symmetrically distributed relative to the transverse center line of the sleeve 4, and the sleeve 4 is in sliding connection with the pin shaft 3.

Grease is filled between the sleeve 4 and the roller 5, and the grease is filled between the tie bars 7.

The working principle is as follows: when the novel chain is used, the sleeve 4 is arranged, the sleeve 4 is sleeved outside the pin shaft 3, the roller 5 is sleeved outside the sleeve 4, the limiting rings 9 are fixedly arranged at two ends of the sleeve 4, the roller 5 is limited on the sleeve 4 through the limiting rings 9, the roller 5 is prevented from contacting with the inner chain plate 2 along the axial movement of the sleeve 4, the roller 5 and the inner chain plate 2 are prevented from being abraded, when the chain is used, the external meshing impact force is firstly exerted on the roller 5 and then exerted on the sleeve 4 through the roller 5, because the connecting strip 7 is arranged on the outer surface of the sleeve 4, when the chain is impacted, the roller 5 is firstly contacted with the connecting strip 7 and is rubbed with the connecting strip 7, the abrasion resistance of the sleeve 4 is improved through the connecting strip 7, because the connecting strip 7 is uniformly distributed outside the sleeve 4, the external impact force is uniformly dispersed, and the roller 5 is prevented from shaking caused by uneven stress, influence the life of chain, lubricating grease fills in the space between connecting strip 7, the storage of the lubricating grease of being convenient for, along with the wearing and tearing of connecting strip 7, lubricating grease can fill and provide lubrication between roller 5 and the sleeve 4, has simple structure, convenient to use, excellent in use effect's advantage.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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.