Connecting structure of marine chain link

Abstract

The utility model is suitable for marine chain track joint technical field, provide the connecting structure of marine chain track joint, including two interval first section piece, two interval pin bushings are provided between two first section pieces, and pin bushing end fixedly connected on first section piece. Still including two interval second section piece, two interval pin shafts are provided between two second section pieces, and pin shaft end rotatory installation is in second section piece, and pin shaft both ends all run through second section piece. The pin shaft of one side passes through the pin bushing adjacent thereto, and pin shaft and pin bushing gap cooperation, and pin shaft, pin bushing can all move. The heat generated by pin shaft and pin bushing friction can be discharged through the inlet, annular cavity and outlet. By adding cooling medium between pin shaft and pin bushing. By rotating pin bushing, different positions on the outer surface of pin bushing can adhere cooling medium, and the above design can more effectively take away the heat generated by the friction of the two.

Description

Technical Field

[0001] This utility model belongs to the technical field of marine track links, and particularly relates to the connection structure of marine track links. Background Technology

[0002] The connection structure of marine track links is a chain-link structure. In existing track link connection structures, frequent friction between the pins and bushings during use leads to heat accumulation and poor heat dissipation. High temperatures cause carbide precipitation or phase transformation in the pin and bushing materials, resulting in a decrease in material hardness. Reduced hardness weakens the wear resistance of the pins and bushings, making them more susceptible to wear during friction and thus shortening their service life. To address these issues, we propose a new connection structure for marine track links. Utility Model Content

[0003] This utility model provides a connection structure for marine track links to solve the above-mentioned problems in the prior art.

[0004] This utility model is implemented as follows: the connecting structure of the marine track link includes two spaced-apart first sections, and two spaced-apart pins are provided between the two first sections, with the ends of the pins fixedly connected to the first sections.

[0005] It also includes two spaced-apart second sections, with two spaced-apart pins between the two second sections. The ends of the pins are rotatably mounted on the second sections, and both ends of the pins pass through the second sections.

[0006] The pin located on one side passes through the adjacent pin sleeve, and the pin and pin sleeve are in clearance fit, and both the pin and pin sleeve are movable.

[0007] The pin sleeve has an internal cavity, which is annular. Each pin sleeve has an outlet on its outside that communicates with the cavity. The pin sleeve also has several inlets arranged in a circular array on its inner side, which communicate with the cavity.

[0008] Preferably, the outlet facing outward is configured to flare outward.

[0009] Preferably, the inlet is designed to gradually narrow at the end furthest from the cavity.

[0010] Preferably, the cavity is provided with a plurality of strip-shaped portions arranged in a circumferential array, and the strip-shaped portions are fixedly connected to the pin sleeve.

[0011] Preferably, gaps are provided at both ends of the strip portion and the inner wall of the cavity.

[0012] Preferably, the cavity is filled with a heat dissipation medium, which is thermally conductive silicone grease, to accelerate the dissipation of heat inside the pin sleeve.

[0013] Preferably, a filter screen is provided at the inlet of the pin sleeve, and the filter screen is used to filter impurities that enter the gap between the pin shaft and the pin sleeve.

[0014] Compared with related technologies, the marine track link connection structure provided by this utility model has the following advantages: The heat generated by the friction between the pin and the pin sleeve can be discharged through the inlet, the annular cavity, and the outlet. Cooling medium is introduced through the outlet and enters the annular cavity from the inlet inside the pin sleeve. The cooling medium within the annular cavity is discharged through multiple inlets, thus adding cooling medium between the pin and the pin sleeve. By rotating the pin sleeve, cooling medium can adhere to different locations on its outer surface. This design more effectively removes the heat generated by friction between the two components.

[0015] The strip-shaped section enhances the structural strength of the pin sleeve; at the same time, the cooling medium bypasses the strip-shaped section and flows through the gap, reducing the flow rate and increasing the residence time in the cavity, allowing it to make more full contact with the inner wall of the pin sleeve, further improving the heat dissipation effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection between the pin sleeve and the pin shaft in this utility model; Figure 2 This is an enlarged structural diagram of the pin shaft in this utility model; Figure 3 This is an enlarged structural diagram of the pin sleeve in this utility model. Figure 1 ; Figure 4 This is an enlarged structural diagram of the pin sleeve in this utility model. Figure 2 ; Figure 5 This is an enlarged sectional view of the pin sleeve in this utility model; Figure 6 For the present utility model Figure 5 Enlarged diagram of point A in the diagram.

[0017] In the diagram: 1. First section; 2. Pin sleeve; 3. Second section; 4. Pin shaft; 5. Cavity; 6. Outlet; 7. Inlet; 8. Strip section; 9. Gap. Detailed Implementation

[0018] 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 the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] A preferred embodiment of the marine track link connection structure provided by this utility model is, for example... Figures 1 to 6 As shown: The connection structure of the marine track link includes two spaced-apart first sections 1, with two spaced-apart pin sleeves 2 between the two first sections 1, and the ends of the pin sleeves 2 are fixedly connected to the first sections 1.

[0021] It also includes two spaced-apart second sections 3, with two spaced-apart pins 4 between the two second sections 3. The ends of the pins 4 are rotatably mounted on the second sections 3, and both ends of the pins 4 pass through the second sections 3.

[0022] The pin 4 located on one side passes through the adjacent pin sleeve 2. The pin 4 and the pin sleeve 2 are in clearance fit, and both the pin 4 and the pin sleeve 2 can move.

[0023] The pin sleeve 2 has an internal cavity 5, which is annular. The pin sleeve 2 has an outlet 6 on its outside, which communicates with the cavity 5. The pin sleeve 2 has several inlets 7 arranged in a circular array on its inner side, which communicate with the cavity 5.

[0024] The outlet 6 is flared outwards at the outer end. The inlet 7 is gradually narrowed at the end furthest from the cavity 5. Multiple strip-shaped sections 8 are arranged in a circular array inside the cavity 5, and the strip-shaped sections 8 are fixedly connected to the pin sleeve 2. Gaps 9 are provided at both ends of the strip-shaped sections 8 and the inner wall of the cavity 5.

[0025] The pin 4, located on one side, passes through the adjacent pin sleeve 2, and the pin 4 and pin sleeve 2 are clearance-fitted, allowing both to move. During the operation of the marine track link, the pin 4 rotates relative to the pin sleeve 2, realizing the connection and movement functions of the track link.

[0026] The heat generated by the friction between the pin 4 and the pin sleeve 2 is discharged through the inlet 7, the annular cavity 5 and the outlet 6.

[0027] By adding a cooling medium, such as lubricating oil, through outlet 6, the cooling medium can enter the annular cavity 5 from the inlet 7 inside the pin sleeve 2. When the cooling medium is added from outlet 6, its outward-expanding shape allows it to flow smoothly into the internal structure of the pin sleeve 2. The cooling medium in the annular cavity 5 is discharged through multiple inlets 7, thus adding cooling medium between the pin shaft 4 and the pin sleeve 2. By rotating the pin sleeve 2, cooling medium can adhere to different positions on its outer surface.

[0028] The inlet 7 is designed to gradually narrow at the end away from the cavity 5, which reduces the flow rate of the cooling medium discharged from the inlet 7 in the cavity 5, thus saving the amount of cooling medium used.

[0029] The strip-shaped part 8 can enhance the structural strength of the pin sleeve 2. On the other hand, when the cooling medium flows in the cavity 5, it will bypass the strip-shaped part 8 and flow through the gap 9. The strip-shaped part 8 reduces the flow rate of the cooling medium in the cavity 5, thereby increasing the residence time of the cooling medium in the cavity 5. This allows the cooling medium to contact the inner wall of the pin sleeve 2 more fully, thus more effectively removing the heat generated by the friction between the pin shaft 4 and the pin sleeve 2.

[0030] In a further preferred embodiment of this utility model: The cavity 5 is filled with a heat dissipation medium, namely thermally conductive silicone grease, to accelerate heat dissipation inside the pin sleeve 2. Thermally conductive silicone grease has excellent thermal conductivity, with a thermal conductivity coefficient much higher than that of air. After filling the cavity 5 with thermally conductive silicone grease, the heat generated inside the pin sleeve 2 can be transferred more quickly to various parts of the cavity 5 through the thermally conductive silicone grease. Compared to relying solely on air for heat transfer, this greatly accelerates the heat conduction speed inside the pin sleeve 2, allowing the heat to be more promptly dispersed and transferred to areas accessible to the cooling medium.

[0031] A filter screen is installed at the inlet 7 of the pin sleeve 2. The filter screen is used to filter impurities entering the gap between the pin shaft 4 and the pin sleeve 2. Various impurities may exist in the working environment of marine track links, such as dust, sand, and metal shavings. The filter screen installed at the inlet 7 can effectively intercept these impurities and prevent them from entering the gap between the pin shaft 4 and the pin sleeve 2 with the cooling medium.

[0032] If impurities enter this gap, during the relative movement of pin 4 and pin sleeve 2, the impurities will act like abrasives, exacerbating the wear between them. This leads to increased surface roughness and decreased dimensional accuracy of pin 4 and pin sleeve 2, and may even cause serious problems such as scratches and jamming, greatly shortening their service life. The presence of a filter screen can reduce this wear risk at the source and protect critical components.

[0033] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0034] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A connecting structure of a marine track link, characterized by, It includes two spaced-apart first sections (1), and two spaced-apart pin sleeves (2) are provided between the two first sections (1), with the ends of the pin sleeves (2) fixedly connected to the first sections (1); It also includes two spaced second sections (3), and two spaced pins (4) are provided between the two second sections (3). The ends of the pins (4) are rotatably mounted on the second sections (3), and both ends of the pins (4) pass through the second sections (3). The pin (4) located on one side passes through the adjacent pin sleeve (2), and the pin (4) and the pin sleeve (2) are in clearance fit. Both the pin (4) and the pin sleeve (2) are movable. The pin sleeve (2) has a cavity (5) inside, the cavity (5) is set as an annular shape, and the pin sleeve (2) has an outlet (6) on the outside, the outlet (6) is connected to the cavity (5), and the pin sleeve (2) has a number of inlets (7) arranged in a circular array on the inner side, the inlets (7) are all connected to the cavity (5).

2. The connection structure of the marine track link as described in claim 1, characterized in that, The outlet (6) is configured to flare outwards at the end facing outwards.

3. The connection structure of the marine track link as described in claim 1, characterized in that, The entrance (7) is set to gradually narrow at the end away from the cavity (5).

4. The connection structure of the marine track link as described in claim 1, characterized in that, The cavity (5) is provided with multiple strip-shaped parts (8) arranged in a circular array, and the strip-shaped parts (8) are fixedly connected to the pin sleeve (2).

5. The connection structure of the marine track link as described in claim 4, characterized in that, Both ends of the strip (8) and the inner wall of the cavity (5) are provided with gaps (9).

6. The connection structure of the marine track link as described in claim 1, characterized in that, The cavity (5) is filled with a heat dissipation medium, which is thermally conductive silicone grease, to accelerate the heat dissipation inside the pin sleeve (2).

7. The connection structure of the marine track link as described in claim 1, characterized in that, A filter screen is provided at the inlet (7) of the pin sleeve (2), and the filter screen is used to filter impurities that enter the gap between the pin shaft (4) and the pin sleeve (2).

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