Wear-resistant drag chain link and drag chain

Abstract

The utility model provides a wear-resistant drag chain link and a drag chain, the wear-resistant drag chain link comprises a first chain plate, a second chain plate, an upper cover plate, a lower cover plate and a protection piece, the first chain plate and the second chain plate are arranged in parallel at an interval along a first horizontal direction, and the two ends of the upper cover plate along the first horizontal direction are respectively clamped at the top ends of the first chain plate and the second chain plate; the two ends, in the first horizontal direction, of the lower cover plate are clamped to the bottom ends of the first chain plate and the second chain plate correspondingly, and the first chain plate, the second chain plate, the upper cover plate and the lower cover plate form a channel. Protective parts are detachably arranged at the clamping positions of the lower cover plate and the first chain plate and the second chain plate, and the protective parts are configured to at least cover the lower cover plate at the clamping positions and the bottom faces of the corresponding chain plates. The protection piece is arranged at the clamping position of the chain plate and the cover plate, it is ensured that friction and abrasion between the drag chain and a fixing support or other external structures can be effectively reduced in the reciprocating motion process of the drag chain, and therefore the service life of the drag chain is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field especially relates to a kind of wear-resistant tow chain chain links and tow chain. BACKGROUND

[0002] Tow chain, as a kind of transmission component widely used in various mechanical equipment, is mainly used to protect internal cable, oil pipe, gas pipe and other pipelines from external force pulling, wear and tear and environmental interference during equipment reciprocating motion. It is usually connected by a plurality of chain links in sequence, and can maintain relatively stable structure under linear, curved or twisted motion, so as to ensure the normal operation of internal pipeline. In industrial automation production line, numerical control machine tool, robot, material handling equipment and transportation and many other fields, tow chain plays an indispensable role.

[0003] However, in the long-term use of tow chain, a significant problem is found, that is, the same tow chain will generate friction with external equipment during reciprocating motion. This friction phenomenon mainly comes from the motion characteristics of tow chain. When tow chain moves back and forth along the predetermined trajectory, such as moving left and right on a horizontal linear guide rail, the surface of one side of the tow chain will repeatedly contact and slide relative to the fixed support or other external structure in each round trip. Since the tow chain usually needs to work at high speed and under heavy load, the continuous friction will gradually cause the wear of the surface material of the tow chain, and severe friction damage may cause structural failure such as chain link breakage and deformation. SUMMARY

[0004] The purpose of the present application is to provide a wear-resistant tow chain chain link to solve the problem of severe wear of the existing tow chain during use. In addition, the purpose of the present application is also to provide a tow chain comprising a wear-resistant tow chain chain link.

[0005] To achieve this purpose, the following technical solutions are adopted:

[0006] The present application provides a wear-resistant tow chain chain link, which comprises a first chain plate, a second chain plate, an upper cover plate, a lower cover plate and a protective piece, wherein:

[0007] The first chain plate and the second chain plate are arranged in parallel along the first horizontal direction, the upper cover plate is connected to the top end of the first chain plate and the second chain plate at both ends along the first horizontal direction, the lower cover plate is connected to the bottom end of the first chain plate and the second chain plate at both ends along the first horizontal direction, and the first chain plate, the second chain plate, the upper cover plate and the lower cover plate form a channel;

[0008] The connection part of the lower cover plate and the first chain plate and the second chain plate is detachably provided with a protective piece, and the protective piece is configured to cover at least the bottom surface of the lower cover plate and the corresponding chain plate at the connection part.

[0009] Optionally, the protective piece includes a base plate and two clamping parts, wherein,

[0010] The two clamping parts are correspondingly arranged on the base plate along the second horizontal direction, and the two clamping parts are clamped on the opposite sides of the lower cover plate in the second horizontal direction, respectively.

[0011] After the two clamping parts are clamped on the lower cover plate, the base plate covers the bottom surface of the corresponding chain plate and the lower cover plate at the clamping position.

[0012] Optionally, the protective piece further includes a side plate, which is arranged on the base plate and spaced apart from the two clamping parts in the first horizontal direction, and after the two clamping parts are clamped on the lower cover plate, the side plate is attached to the outer side surface of the corresponding chain plate.

[0013] Optionally, the protective piece further includes two limiting bosses, which are spaced apart along the second horizontal direction, and the two limiting bosses are configured to limit the corresponding chain plate in the second horizontal direction.

[0014] Optionally, the base plate, the two clamping parts, the side plate and the two limiting bosses are of an integrated structure.

[0015] Optionally, the side plate is provided with a bevel at least at one end along the second horizontal direction, and the bevel is inclined away from the outer side surface of the corresponding chain plate.

[0016] Optionally, both ends of the base plate along the second horizontal direction are provided with circular arc surfaces curved towards the corresponding chain plate.

[0017] Optionally, the first chain plate and the second chain plate are provided with two clamping bosses towards the upper cover plate and the lower cover plate, and the upper cover plate and the lower cover plate are provided with clamping grooves at both ends along the first horizontal direction, the clamping bosses are matched with the clamping grooves, and the clamping bosses are clamped in the clamping grooves.

[0018] A drag chain includes a plurality of the above-mentioned wear-resistant drag chain links, and the plurality of wear-resistant drag chain links are connected end to end as a whole.

[0019] Compared with the prior art, the wear-resistant drag chain link has the following advantages:

[0020] 1) By arranging the protective piece at the clamping position of the chain plate and the cover plate, the friction and wear between the drag chain and the fixed support or other external structures during reciprocating motion can be effectively reduced, and at the same time, the oil stains in the external structure are prevented from entering the covered position of the protective piece, thereby improving the service life of the drag chain.

[0021] 2) By cooperation of the side plate and the clamping part, the chain plate is limited in the first horizontal direction, so as to enhance the stability of the protective piece and prevent the side wear of the chain link.

[0022] 3) The limiting boss limits the chain plate in the second horizontal direction, ensures that the protective piece is stably fixed in the preset position, avoids displacement or falling of the protective piece during use, and enhances the reliability and safety of the chain link. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present application, the drawings needed to be used in the background and embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present application and these drawings without creative labor.

[0024] Figure 1 is a three-dimensional structural schematic diagram of the wear-resistant drag chain link provided by the embodiments of the present application;

[0025] Figure 2 is a three-dimensional structural schematic diagram of the protective piece of the wear-resistant drag chain link provided by the embodiments of the present application;

[0026] Figure 3 is a three-dimensional structural schematic diagram of the protective piece of the wear-resistant drag chain link provided by the embodiments of the present application from another perspective;

[0027] Figure 4 is a three-dimensional structural schematic diagram of the upper cover plate of the wear-resistant drag chain link provided by the embodiments of the present application;

[0028] Figure 5 is a three-dimensional structural schematic diagram of the second chain plate of the wear-resistant drag chain link provided by the embodiments of the present application. DETAILED DESCRIPTION

[0029] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 5 As shown in the embodiment of this application, a wear-resistant cable chain link includes a first chain plate 10, a second chain plate 20, an upper cover plate 30, a lower cover plate 40, and a protective component 50, wherein:

[0031] The first chain plate 10 and the second chain plate 20 are along the first horizontal direction ( Figure 1 The upper cover plate 30 is set in parallel intervals in the X direction. The two ends of the upper cover plate 30 along the first horizontal direction are respectively snapped to the top of the first chain plate 10 and the second chain plate 20. The two ends of the lower cover plate 40 along the first horizontal direction are respectively snapped to the bottom of the first chain plate 10 and the second chain plate 20. The first chain plate 10, the second chain plate 20, the upper cover plate 30 and the lower cover plate 40 form a channel.

[0032] A protective element 50 is detachably provided at the engagement point between the lower cover plate 40 and the first chain plate 10 and the second chain plate 20. The protective element 50 is configured to at least cover the bottom surface of the lower cover plate 40 and the corresponding chain plate at the engagement point.

[0033] By installing a protective component 50 at the snap-fit ​​joint between the chain plate and the cover plate, the drag chain can effectively reduce friction and wear with the fixed bracket or other external structures during reciprocating motion, while preventing oil stains from the external structure from entering the area covered by the protective component 50, thereby improving the service life of the drag chain.

[0034] In one embodiment, the protective member 50 includes a base plate 51 and two snap-fit ​​portions 52, wherein,

[0035] The two snap-fit ​​parts 52 are along the second horizontal direction ( Figure 1The two clamping portions 52 are clamped on the opposite sides of the lower cover plate 40 in the second horizontal direction.

[0036] After the two clamping portions 52 are clamped on the lower cover plate 40, the substrate 51 covers the bottom surface of the corresponding chain plate and the clamped portion of the lower cover plate 40.

[0037] Specifically, the clamping portion 52 is designed as a buckle.

[0038] Through the close cooperation between the clamping portion 52 and the lower cover plate 40, the stability of the protective piece 50 during operation is ensured, and at the same time, the substrate 51 can fully cover the bottom surface of the chain link and the clamped portion, further effectively reducing friction and wear, and enhancing the durability of the chain link.

[0039] In an embodiment, the protective piece 50 further comprises a side plate 53, which is arranged on the substrate 51 and is spaced apart from the two clamping portions 52 in the first horizontal direction. After the two clamping portions 52 are clamped on the lower cover plate 40, the side plate 53 is attached to the outer side surface of the corresponding chain plate.

[0040] Through the cooperation of the side plate 53 and the clamping portion 52, the chain plate is limited in the first horizontal direction, so as to enhance the stability of the protective piece 50 and prevent the side surface of the chain link from being worn.

[0041] In an embodiment, the protective piece 50 further comprises two limiting bosses 54, which are spaced apart in the second horizontal direction. The two limiting bosses 54 are configured to limit the corresponding chain plate in the second horizontal direction.

[0042] By limiting the chain plate in the second horizontal direction through the limiting boss 54, the protective piece 50 is stably fixed in the preset position, avoiding displacement or falling of the protective piece 50 during use, and enhancing the reliability and safety of the chain link in use.

[0043] In an embodiment, the substrate 51, the two clamping portions 52, the side plate 53 and the two limiting bosses 54 are of an integrated structure.

[0044] By designing the substrate 51, the clamping portion 52, the side plate 53 and the limiting boss 54 of the protective piece 50 as an integrated structure, not only the assembly process is simplified, the production efficiency is improved, but also the structural strength of the protective piece 50 is improved.

[0045] In an embodiment, the side plate 53 is provided with an inclined surface 530 at least at one end in the second horizontal direction, which is inclined away from the outer side surface of the corresponding chain plate.

[0046] By designing the inclined surface 530 on the side plate 53, the quick clamping of the protective piece 50 and the chain plate is facilitated, and the scratching phenomenon between the chain plate and the protective piece 50 is reduced, and the reliability of the chain link is improved.

[0047] In an embodiment, the two ends of the base plate 51 along the second horizontal direction are designed as circular arc surfaces 510 curved towards the corresponding chain plate.

[0048] By setting the circular arc surfaces 510 at the two ends of the base plate 51, on the one hand, the contact between the base plate 51 and the chain plate is more close, and the coverage area of the protective piece 50 is improved; on the other hand, the friction between the protective piece 50 and the fixed support or other external structure is further reduced, and the smoothness of the operation of the drag chain is improved.

[0049] In an embodiment, the first chain plate 10 and the second chain plate 20 are provided with two buckle tables 11 towards the upper cover plate 30 and the lower cover plate 40, and the upper cover plate 30 and the lower cover plate 40 are provided with a clamping groove at the two ends along the first horizontal direction, and the buckle table 11 is matched with the clamping groove 31, and the buckle table 11 is clamped in the clamping groove.

[0050] By matching the buckle table 11 with the clamping groove 31, the connection strength between the chain plate and the cover plate is improved, and the quick connection between the chain plate and the cover plate is facilitated.

[0051] A drag chain comprises a plurality of the above-mentioned wear-resistant drag chain links, and the plurality of wear-resistant drag chain links are connected end to end to form a whole.

[0052] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Various changes and modifications of the present application can be made without departing from the spirit and scope of the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant tow chain link, characterized in that, The wear-resistant drag chain link comprises a first chain plate, a second chain plate, an upper cover plate, a lower cover plate and a protective piece, wherein: The first chain plate and the second chain plate are arranged in parallel along a first horizontal direction, the upper cover plate is respectively clamped at the top end of the first chain plate and the second chain plate at both ends along the first horizontal direction, the lower cover plate is respectively clamped at the bottom end of the first chain plate and the second chain plate at both ends along the first horizontal direction, and the first chain plate, the second chain plate, the upper cover plate and the lower cover plate form a channel; The lower cover plate is detachably provided with the protective piece at the clamping position of the first chain plate and the second chain plate, and the protective piece is configured to cover at least the bottom surface of the corresponding chain plate and the lower cover plate at the clamping position.

2. The wear-resistant tow chain link of claim 1, wherein, The protective piece comprises a base plate and two clamping portions, wherein: The two clamping portions are correspondingly arranged on the base plate in a spaced manner along a second horizontal direction, and the two clamping portions are respectively clamped on the opposite sides of the lower cover plate along the second horizontal direction; After the two clamping portions are clamped on the lower cover plate, the base plate covers the bottom surface of the corresponding chain plate and the lower cover plate at the clamping position.

3. A wear-resistant tow chain link according to claim 2, characterized in that The protective piece further comprises a side plate, which is arranged on the base plate and is arranged in a spaced manner with the two clamping portions along the first horizontal direction, and after the two clamping portions are clamped on the lower cover plate, the side plate is attached to the outer side surface of the corresponding chain plate.

4. A wear-resistant tow chain link according to claim 3, characterized in that The protective piece further comprises two limiting bosses, which are arranged in a spaced manner along the second horizontal direction, and the two limiting bosses are configured to limit the corresponding chain plate in the second horizontal direction.

5. A wear-resistant towline link according to claim 4, characterized in that The base plate, the two clamping portions, the side plate and the two limiting bosses are of an integrated structure.

6. The wear-resistant towline link of claim 3, wherein, At least one end of the side plate along the second horizontal direction is provided with an inclined surface, which is inclined away from the outer side surface of the corresponding chain plate.

7. The wear-resistant towline link of claim 2, wherein, Both ends of the base plate along the second horizontal direction are provided as circular arc surfaces curved towards the corresponding chain plate.

8. The wear-resistant towline link of claim 2, wherein, The first chain plate and the second chain plate are both provided with two buckle platforms towards the upper cover plate and the lower cover plate, the upper cover plate and the lower cover plate are both provided with clamping grooves at both ends along the first horizontal direction, the buckle platforms are matched with the clamping grooves, and the buckle platforms are clamped in the clamping grooves.

9. A drag chain, characterized in that The drag chain comprises a plurality of wear-resistant drag chain links according to any one of claims 1-8, and the plurality of wear-resistant drag chain links are connected end to end as a whole.

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