CN211175224U

CN211175224U - Wear-resistant chain

Info

Publication number: CN211175224U
Application number: CN201922414736.4U
Authority: CN
Inventors: 田志亮
Original assignee: Nantong Watson Chain Co ltd
Current assignee: Nantong Watson Chain Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-04
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a wear-resistant chain, which comprises an outer chain plate, an inner chain plate and a chain shaft, wherein the outer chain plate is provided with a first shaft hole, the inner chain plate is provided with a second shaft hole, the chain shaft passes through the first shaft hole and the second shaft hole to connect the inner chain plate and the outer chain plate, the side surface of the outer chain plate, which is opposite to the inner chain plate, is the inner side surface of the outer chain plate, and the other side surface is the outer side surface of the outer chain plate; the side surface of the inner chain plate, which is opposite to the outer chain plate, is the outer side surface of the inner chain plate, a circular boss is arranged on the outer side surface of the inner chain plate, the circular boss and a second shaft hole are coaxially arranged, and the second shaft hole is a through hole penetrating through the second boss; the inner side surface of the outer chain plate is provided with an annular boss, the first shaft hole and the annular boss are coaxially arranged, and the circular boss is nested in the annular boss. The utility model has the advantages of, set up the circular boss of complex and annular boss between outer link joint and inner link joint, will be used in the epaxial power part of chain and shift to circular boss and annular boss, alleviateed the epaxial power of action at the chain, the atress of chain is more even.

Description

Wear-resistant chain

Technical Field

The utility model relates to a drive chain technical field, concretely relates to wear-resisting chain.

Background

At present, the conveying chains used in production all consist of chain links, and in the working process, the chains are often dragged to break or loosen, and the quality of the chain links directly influences the service life and the safety of the chains, so that great potential safety hazards are caused for production.

The chain link unit comprises two inner chain sheets and two small pipes which are arranged between the two inner chain sheets and used for connecting the two inner chain sheets, and the plurality of chain link units are connected by a plurality of outer chain sheets to form a chain. Specifically, two adjacent chain link units need to be connected by two outer chain sheets, that is, a first small shaft is arranged in a small pipe of one chain link unit, a second small shaft is arranged in a small pipe of the adjacent chain link unit, one outer chain sheet is connected with one end of the first small shaft and one end of the second small shaft, and the other outer chain sheet is connected with the other end of the first small shaft and the other end of the second small shaft, so that the chain link units are connected.

In the prior art, the end parts of the first small shaft and the second small shaft are exposed outside the outer chain plate, the connection of the inner chain plate and the outer chain plate depends on the first small shaft and the second small shaft, the force acting on the first small shaft and the second small shaft is large, and the service life of the small shafts is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wear-resisting chain to prior art's defect and not enough.

In order to achieve the above object, the utility model adopts the following technical scheme: a wear-resistant chain comprises an outer chain plate, an inner chain plate and a chain shaft, wherein the outer chain plate is provided with a first shaft hole, the inner chain plate is provided with a second shaft hole, and the chain shaft penetrates through the first shaft hole and the second shaft hole to connect the inner chain plate and the outer chain plate; the side surface of the outer chain plate, which is opposite to the inner chain plate, is the inner side surface of the outer chain plate, and the other side surface of the outer chain plate is the outer side surface of the outer chain plate; the side surface of the inner chain plate, which is opposite to the outer chain plate, is the outer side surface of the inner chain plate, a circular boss is arranged on the outer side surface of the inner chain plate, the circular boss and a second shaft hole are coaxially arranged, and the second shaft hole is a through hole penetrating through the second boss; the inner side surface of the outer chain plate is provided with an annular boss, the first shaft hole and the annular boss are coaxially arranged, and the circular boss is nested in the annular boss.

Furthermore, the annular boss is semi-annular and symmetrically located at two ends of the outer chain plate in the length direction.

Furthermore, the first shaft hole is a blind hole, and when the outer chain plate is matched with the inner chain plate, the first shaft hole is communicated with the second shaft hole.

Furthermore, a closed boss is arranged on the outer side face of the outer chain plate and covers the first shaft hole.

Furthermore, the annular boss is arranged around the edge of one circle of the inner side face of the outer chain plate, and the two ends of the circular boss and the two ends of the annular boss in the length direction are matched.

After the structure is adopted, the utility model discloses beneficial effect does: the circular boss and the annular boss which are matched with each other are arranged between the outer chain plate and the inner chain plate, so that the force acting on the chain shaft is partially transferred to the circular boss and the annular boss, the force acting on the chain shaft is reduced, and the stress of the chain is more uniform.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of an outer link plate of the present invention;

fig. 3 is a schematic view of the inner link plate of the present invention.

Description of reference numerals:

1. the outer chain plate 11, the closed boss 12, the annular boss 13, the first shaft hole 2, the inner chain plate 21.

Circular boss, 22 second axle holes, 3 chain axles.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Example 1

As shown in fig. 1-3, in order to achieve the above purpose, the technical solution adopted by the present invention is: a wear-resistant chain comprises an outer chain plate 1, an inner chain plate 2 and a chain shaft 3, wherein the inner chain plate and the outer chain plate are both strip-shaped plates, two ends in the length direction are arc-shaped ends, two ends in the length direction of the outer chain plate 1 are provided with first shaft holes 12, two ends in the length direction of the inner chain plate 2 are provided with second shaft holes 22, and the chain shaft 3 penetrates through the first shaft holes 13 and the second shaft holes 22 to connect the inner chain plate and the outer chain plate; the chain shaft 3 comprises a small pipe connected between the second shaft holes 22 of the two inner chain plates 2, a sleeve sleeved outside the small pipe and a small shaft penetrating through the small pipe, and two ends of the small shaft are clamped in the first shaft holes 13 of the outer chain plates 1. The side surface of the outer chain plate 1 opposite to the inner chain plate 2 is the inner side surface of the outer chain plate, and the other side surface is the outer side surface of the outer chain plate; the side surface of the inner chain plate 2 opposite to the outer chain plate 1 is the outer side surface of the inner chain plate, a circular boss 21 is arranged on the outer side surface of the inner chain plate, the circular boss 21 and a second shaft hole 22 are coaxially arranged, and the second shaft hole 22 is a through hole penetrating through the circular boss 21; the inner side surface of the outer chain plate is provided with an annular boss 12, the first shaft hole 13 and the annular boss 12 are coaxially arranged, and the circular boss 21 is nested in the annular boss 12. In the process that the inner chain plate 2 and the outer chain plate 1 rotate mutually, the circular boss 21 also rotates in the annular boss 12, and when the chain shaft 3 is pressed by the chain wheel, partial force is shared between the circular boss 21 and the annular boss 12, so that the stress on the chain is more uniform, and the transmission is facilitated.

The annular bosses 12 are semi-annular, are symmetrically arranged at two ends of the outer chain plate 1 in the length direction, are symmetrical and attractive, and are easy to manufacture. The first shaft hole 13 is a blind hole, and when the outer chain plate 1 is matched with the inner chain plate 2, the first shaft hole 13 is communicated with the second shaft hole 22. The outer side surface of the outer chain plate is provided with a closed boss 11, and the first shaft hole 13 does not penetrate through the closed boss 11 to form a blind hole. The first shaft hole 22 is a blind hole, so that the end part of the chain shaft 3 can be protected, rainwater invasion or external impact is prevented, and the fixation of the chain shaft 3 is better ensured.

Example 2

In other embodiments, the annular boss 12 is disposed around one circle of the edge of the inner side surface of the outer link plate 1 (not shown in the figures), the circular boss 21 is engaged with two ends of the annular boss 12 in the length direction, and the annular boss 12 disposed around one circle of the outer link plate 1 can prevent rainwater or impurities from entering the joint of the inner link plate and the outer link plate, thereby improving the transmission efficiency of the chain and protecting the chain shaft.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A wear-resistant chain is characterized in that: the chain comprises an outer chain plate (1), an inner chain plate (2) and a chain shaft (3), wherein the outer chain plate is provided with a first shaft hole (13), the inner chain plate (2) is provided with a second shaft hole (22), and the chain shaft (3) penetrates through the first shaft hole (13) and the second shaft hole (22) to connect the inner chain plate and the outer chain plate; the side surface of the outer chain plate (1) opposite to the inner chain plate (2) is the inner side surface of the outer chain plate, and the other side surface is the outer side surface of the outer chain plate; the side face, opposite to the outer chain plate (1), of the inner chain plate (2) is the outer side face of the inner chain plate, a circular boss (21) is arranged on the outer side face of the inner chain plate, the circular boss (21) and a second shaft hole (22) are coaxially arranged, and the second shaft hole (22) is a through hole penetrating through the circular boss (21); the inner side face of the outer chain plate is provided with an annular boss (12), the first shaft hole (13) and the annular boss (12) are coaxially arranged, and the circular boss (21) is nested in the annular boss (12).

2. A wear resistant chain according to claim 1, wherein: the annular boss (12) is semi-annular and symmetrically positioned at two ends of the outer chain plate (1) in the length direction.

3. A wear resistant chain according to claim 2, wherein: the first shaft hole (13) is a blind hole, and when the outer chain plate (1) is matched with the inner chain plate (2), the first shaft hole (13) is communicated with the second shaft hole (22).

4. A wear resistant chain according to claim 3, wherein: and a closed boss (11) is arranged on the outer side surface of the outer chain plate, and the closed boss (11) covers the first shaft hole (13).

5. A wear resistant chain according to claim 4, wherein: the annular boss (12) is arranged around one circle of edge of the inner side face of the outer chain plate, and the two ends of the circular boss (21) in the length direction of the annular boss (12) are matched.