CN219529712U

CN219529712U - High-strength sealing chain

Info

Publication number: CN219529712U
Application number: CN202320210651.8U
Authority: CN
Inventors: 谭小军; 刘荣军; 毛思文; 汪恭兵; 孟凡飞; 李淦; 林余斌; 夏名; 李彭; 周兆国
Original assignee: Hangzhou Donghua Chain Group Co Ltd
Current assignee: Hangzhou Donghua Chain Group Co Ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-08-15
Anticipated expiration: 2033-02-14

Abstract

The utility model relates to the field of chains, and particularly discloses a high-strength sealing chain. The high-strength sealing chain comprises a plurality of chain links, wherein two adjacent chain links are connected through a middle chain plate and a pin shaft; the chain link comprises an inner single section and an outer chain plate, wherein the inner single section comprises two inner chain plates, and a sleeve is connected between the two inner chain plates; the outer chain plates are in one-to-one correspondence with the inner chain plates and are positioned at the outer sides of the corresponding inner chain plates, and a transition interval is reserved between the inner chain plates and the outer chain plates; a lubrication interval is reserved between the sleeve and the corresponding pin shaft; the corresponding end part of the middle chain plate is positioned in the transition section; and a sealing ring is arranged between the middle chain plate and the corresponding inner chain plate, and the middle chain plate and the outer chain plate jointly compress the sealing ring. Compared with the traditional chain structure, the high-strength sealing chain structure is subjected to reinforcement design, has good lubricating performance and sealing performance, and can adapt to severe working conditions of large load and no lubrication.

Description

High-strength sealing chain

Technical Field

The utility model relates to the field of chains, in particular to a high-strength sealing chain.

Background

The chain is a common mechanical transmission part and has the advantages of large transmission load and accurate transmission ratio. The factors mainly considered in the design of the chain transmission mechanism comprise the type of the chain and the transmission load, the proper type of the chain is selected and the performance parameters of the chain are determined according to different working environments and transmission load sizes, and meanwhile, in the working process of the chain, reliable lubrication is needed to ensure the normal and stable operation of the chain transmission mechanism.

The utility model aims at a chain which can adapt to severe working conditions of large load and no lubrication so as to realize continuous and stable operation under severe working conditions, reduce overhauling and replacing frequency in the service life period and reduce the use and maintenance cost of the chain.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a high-strength sealing chain, which is reinforced in structure and has better lubricating property and sealing property compared with the traditional chain structure, and can adapt to severe working conditions of large load and no lubrication.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a high-strength sealing chain comprises a plurality of chain links, wherein two adjacent chain links are connected through a middle chain plate and a pin shaft; the chain link comprises an inner single section and an outer chain plate, wherein the inner single section comprises two inner chain plates, and a sleeve is connected between the two inner chain plates; the outer chain plates are in one-to-one correspondence with the inner chain plates and are positioned at the outer sides of the corresponding inner chain plates, and a transition interval is reserved between the inner chain plates and the outer chain plates;

the sleeve is sleeved outside the corresponding pin shaft, and a lubrication interval is reserved between the sleeve and the corresponding pin shaft; the outer chain plate is rotatably and movably connected with the corresponding pin shaft;

the corresponding end part of the middle chain plate is positioned in the transition section and is connected with the corresponding pin shaft; a sealing ring is arranged between the middle chain plate and the corresponding inner chain plate, and the middle chain plate and the outer chain plate jointly compress the sealing ring; the sealing rings are sleeved on the corresponding pin shafts.

The outer chain plate is additionally arranged in the inner single joint, so that the bearing area between the pin shaft and the chain link can be increased, the structure of the chain link is enhanced, the thickness of the corresponding middle chain plate is properly increased, and the large-load working condition can be well adapted. The arrangement of the lubrication interval and the sealing ring can lubricate the movable part in the chain structure, ensure the normal and stable operation of the chain, adapt to the non-lubrication working condition, reduce the overhaul and maintenance frequency of the chain and reduce the use and maintenance cost of the chain.

Preferably, the sleeve is in interference fit with the inner chain plate, and the middle chain plate is in interference fit with the pin shaft.

Preferably, the sleeve is sleeved with rollers.

Preferably, the outer chain plate is provided with an outer shaft hole corresponding to the pin shaft; a spacer bush is arranged in the outer shaft hole, is in interference fit with the outer chain plate and is movably connected with the pin shaft; the hardness of the spacer bush is higher than that of the outer chain plate. The spacer bush can enhance the wear resistance of the outer chain plate, so that the service life of the chain is prolonged.

Preferably, a gasket is arranged on the outer side of the outer chain plate, two ends of the pin shaft are respectively riveted, and the gasket plays a role in lateral limiting.

Drawings

FIG. 1 is a schematic view of a high strength seal chain according to the present embodiment;

FIG. 2 is a schematic view of the structure of the high strength seal chain in which links are connected to intermediate links;

fig. 3 is a partial enlarged view at a in fig. 2.

Description of the embodiments

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Examples

As shown in fig. 1-3, a high-strength sealing chain comprises a plurality of chain links 1, wherein two adjacent chain links 1 are connected through an intermediate link plate 3 and a pin shaft 2. Specifically, the chain link 1 comprises an inner single section and an outer chain plate 11, the inner single section comprises two inner chain plates 12, a sleeve 15 is connected between the two inner chain plates 12, and a roller 13 is sleeved outside the sleeve 15. The outer chain plates 11 are in one-to-one correspondence with the inner chain plates 12 and are positioned on the outer sides of the corresponding inner chain plates 12, and transition sections 14 are reserved between the inner chain plates 12 and the outer chain plates 11.

As shown in fig. 1-3, the sleeve 15 is sleeved outside the corresponding pin shaft 2, and a lubrication interval 16 is reserved between the sleeve and the corresponding pin shaft 2; the outer chain plate 11 is rotatably and movably connected with the corresponding pin shaft 2. The sleeve 15 is in interference fit with the inner chain plate 12, and the middle chain plate 3 is in interference fit with the pin shaft 2.

As shown in fig. 2 and 3, the corresponding end of the intermediate link plate 3 is located in the transition section 14 and is connected to the corresponding pin 2. A sealing ring 17 is arranged between the middle chain plate 3 and the corresponding inner chain plate 12, and the middle chain plate 3 and the outer chain plate 11 jointly compress the sealing ring 17; the sealing rings 17 are sleeved on the corresponding pin shafts 2. The outside of outer link joint 11 is equipped with packing ring 18, the both ends of round pin axle 2 are riveted respectively, and packing ring 18 plays the side limit effect.

The outer chain plate 11 is additionally arranged in the inner single section, the inner chain plate 12 is structurally reinforced, the corresponding middle chain plate 3 is reinforced by adopting a mode of increasing thickness and heat treatment, and the large-load working condition can be well adapted. The arrangement of the lubrication section 16 and the sealing ring 17 can lubricate the movable part in the chain structure, ensure the normal and stable operation of the chain, adapt to the non-lubrication working condition, reduce the overhaul and maintenance frequency of the chain and reduce the use and maintenance cost of the chain.

As shown in fig. 2 and 3, further, the outer link plate 11 is provided with an outer shaft hole corresponding to the pin shaft 2; a spacer bush 111 is arranged in the outer shaft hole, and the spacer bush 111 is in interference fit with the outer chain plate 11 and is movably connected with the pin shaft 2; the spacer 111 has a hardness higher than that of the outer link plate 11. The hardness of the spacer bush 111 is larger than that of the outer chain plate 11, so that the wear resistance of the outer chain plate 11 can be enhanced, the service life of the chain is prolonged, the consumption of the spacer bush 111 material can be saved, and the processing cost is reduced.

In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A high-strength sealing chain comprises a plurality of chain links, wherein two adjacent chain links are connected through a middle chain plate and a pin shaft; the method is characterized in that: the chain link comprises an inner single section and an outer chain plate, wherein the inner single section comprises two inner chain plates, and a sleeve is connected between the two inner chain plates; the outer chain plates are in one-to-one correspondence with the inner chain plates and are positioned at the outer sides of the corresponding inner chain plates, and a transition interval is reserved between the inner chain plates and the outer chain plates;

2. The high strength seal chain of claim 1, wherein: the sleeve is in interference fit with the inner chain plate, and the middle chain plate is in interference fit with the pin shaft.

3. The high strength seal chain of claim 1, wherein: the sleeve is sleeved with rollers.

4. The high strength seal chain of claim 1, wherein: the outer chain plate is provided with an outer shaft hole corresponding to the pin shaft; a spacer bush is arranged in the outer shaft hole, is in interference fit with the outer chain plate and is movably connected with the pin shaft; the hardness of the spacer bush is higher than that of the outer chain plate.

5. The high strength seal chain of any one of claims 1-4, wherein: and washers are arranged on the outer sides of the outer chain plates, and two ends of the pin shaft are respectively riveted.