Wear-resistant chain sleeve

Abstract

The invention provides a wear-resistant chain sleeve, and relates to the technical field of chain equipment. The wear-resistant chain sleeve comprises a sleeve body, a set of friction buffering mechanisms and a set of lubricating mechanisms are arranged on the inner side wall of the sleeve body, the friction buffering mechanisms and the lubricating mechanisms are distributed at intervals, and each friction buffering mechanism comprises a buffering friction layer. When the pin shaft and the next buffer friction layer generate relative displacement, due to the existence of the damping buffer substance, the pressure can be further absorbed, and the lubricating oil adsorbed by the buffer friction layer can lubricate the pin shaft to reduce the next friction damage, so that the friction degree between the pin shaft and the sleeve is reduced, and the service life of the pin shaft is further prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of chain equipment, in particular to a wear-resistant chain bushing. Background Art

[0002] The chain bushing is an important part of the chain, mainly made of metal materials. Its function is to protect the chain links and reduce the wear of the chain. The bushing can form a buffer between the chain links and the sprocket to prevent the chain links from directly contacting the sprocket and causing chain wear. This protection mechanism effectively extends the service life of the chain.

[0003] The traditional sleeve is very easy to wear between itself and the pin during use, especially for heavy-load chains. There is no good anti-wear measure, which greatly affects its service life. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a wear-resistant chain sleeve, which solves the problem that the traditional sleeve is very easy to wear between itself and the pin shaft during use, especially for heavy-load chains, and has no good anti-wear measures, which greatly affects its service life.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a wear-resistant chain sleeve, including a sleeve body, the inner wall of the sleeve body is provided with a group of friction buffer mechanisms and a group of lubrication mechanisms, the friction buffer mechanisms and the lubrication mechanisms are distributed in an intermittent manner, the friction buffer mechanism includes a buffer friction layer, the side wall of the buffer friction layer close to the inner wall of the sleeve body is fixedly connected with a connecting slider, the inner wall of the sleeve body is provided with a movable sliding groove corresponding to the connecting slider, the lubrication mechanism includes a placement rack, a support return spring is arranged inside the placement rack, one end of the support return spring is fixedly connected to the inner wall of the sleeve body, the other end of the support return spring is fixedly connected with a connecting support bead, and the connecting support bead is located at the outlet of the placement rack.

[0006] Preferably, the interior of the placement rack is filled with an oil-absorbing filling layer, the oil-absorbing filling layer surrounds the outer surface of the support reset spring, and the left and right side walls of the placement rack are both provided with a plurality of small holes.

[0007] Preferably, the interior of the movable slide groove is filled with damping and buffering materials, and the damping and buffering materials are located on both sides of the connecting slider.

[0008] Working principle: During use, when the sleeve is in the working state, as the chain runs, negative pressure occurs between the pin and the sleeve, and the friction buffer mechanism and the lubrication mechanism are alternately squeezed and move relative to each other. Since the interior of the placement frame is filled with a filling oil-absorbing layer, the filling oil-absorbing layer surrounds the outer surface of the support return spring, and multiple small holes are opened on the left and right side walls of the placement frame. When the connecting support beads are squeezed, they will squeeze the filling oil-absorbing layer with the support return spring, and release the lubricating oil outward through the small holes until it is absorbed by the buffer friction layer on both sides. When the connecting support beads and the placement frame are squeezed by negative pressure, the pressure can be relieved and the stored lubricating oil can be released at the same time, thereby achieving the effect of lubrication and maintenance. When the pin and the next buffer friction layer are relatively displaced, the pressure will be further absorbed due to the presence of the damping buffer material, and the lubricating oil absorbed by the buffer friction layer can lubricate the pin, reducing the next friction damage, thereby reducing the degree of friction between the pin and the sleeve, and further improving its service life.

[0009] (III) Beneficial effects The present invention provides a wear-resistant chain bushing, which has the following beneficial effects: 1. When the connecting support beads of the wear-resistant chain sleeve are squeezed, the supporting return spring will squeeze and fill the oil absorption layer, and release the lubricating oil outward through the small holes until it is adsorbed by the buffer friction layer on both sides. When the connecting support beads and the placement frame are squeezed by negative pressure, the pressure can be relieved and the stored lubricating oil can be released at the same time, thereby achieving the effect of lubrication and maintenance.

[0010] 2. For the wear-resistant chain sleeve, when the pin shaft and the next buffer friction layer are relatively displaced, the damping buffer material will further absorb the pressure energy, and the lubricating oil adsorbed by the buffer friction layer can lubricate the pin shaft to reduce the next friction damage, thereby reducing the friction degree between the pin shaft and the sleeve, and further improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified image of point A; Figure 3 For the present invention Figure 1 Enlarged view of point B.

[0012] Among them, 1. sleeve body; 2. buffer friction layer; 3. connecting slider; 4. damping buffer material; 5. moving slide groove; 6. placement frame; 7. support reset spring; 8. filling oil absorption layer; 9. connecting support beads. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example:

[0014] like Figure 1-3 As shown, an embodiment of the present invention provides a wear-resistant chain sleeve, including a sleeve body 1, the inner wall of the sleeve body 1 is provided with a group of friction buffer mechanisms and a group of lubrication mechanisms, the friction buffer mechanisms and the lubrication mechanisms are distributed in an intermittent manner, the friction buffer mechanism includes a buffer friction layer 2, the side wall of the buffer friction layer 2 close to the inner wall of the sleeve body 1 is fixedly connected with a connecting slider 3, the inner wall of the sleeve body 1 is provided with a movable slide groove 5 for corresponding to the connecting slider 3, the lubrication mechanism includes a placement rack 6, a support return spring 7 is arranged inside the placement rack 6, one end of the support return spring 7 is fixedly connected to the inner wall of the sleeve body 1, the other end of the support return spring 7 is fixedly connected with a connecting support bead 9, and the connecting support bead 9 is located at the outlet of the placement rack 6.

[0015] The interior of the placement rack 6 is filled with an oil-absorbing layer 8, which surrounds the outer surface of the supporting reset spring 7. The left and right side walls of the placement rack 6 are both provided with multiple small holes; the interior of the movable slide groove 5 is filled with damping buffer material 4, which is located on both sides 4 of the connecting slider 3.

[0016] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant chain bushing, comprising a bushing body (1), characterized in that: The inner wall of the sleeve body (1) is provided with a group of friction buffer mechanisms and a group of lubrication mechanisms, and the friction buffer mechanisms and the lubrication mechanisms are distributed in an intermittent manner. The friction buffer mechanism comprises a buffer friction layer (2), and the side wall of the buffer friction layer (2) close to the inner wall of the sleeve body (1) is fixedly connected with a connecting slider (3), and the inner wall of the sleeve body (1) is provided with a movable slide groove (5) for being opposite to the connecting slider (3). The lubrication mechanism comprises a placement rack (6), and a support return spring (7) is arranged inside the placement rack (6), one end of the support return spring (7) is fixedly connected to the inner wall of the sleeve body (1), and the other end of the support return spring (7) is fixedly connected with a connecting support bead (9), and the connecting support bead (9) is located at the outlet of the placement rack (6).

2. The wear-resistant chain bushing according to claim 1, characterized in that: The interior of the placement rack (6) is filled with an oil-absorbing filling layer (8), and the oil-absorbing filling layer (8) surrounds the outer surface of the supporting return spring (7). The left and right side walls of the placement rack (6) are both provided with a plurality of small holes.

3. The wear-resistant chain bushing according to claim 1, characterized in that: The interior of the movable slide groove (5) is filled with a damping buffer material (4), and the damping buffer material is located on both sides (4) of the connecting slider (3).

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