Outer chain link and chain

Abstract

The embodiment of the utility model provides an outer chain link and a chain, and relates to the technical field of chains. The outer chain link comprises a first outer chain plate, a second outer chain plate, a first pin shaft, a second pin shaft, a first protection plate and a second protection plate, and the first outer chain plate and the second outer chain plate are arranged at an interval; the first pin shaft and the second pin shaft are arranged at an interval, the first pin shaft is connected with the first outer chain plate and the second outer chain plate at the same time, and the second pin shaft is connected with the first outer chain plate and the second outer chain plate at the same time; the first protection plate is arranged at the end of the first outer chain plate, and the second protection plate is arranged at the end of the second outer chain plate. The outer chain link can protect the chain plate, improve the abrasive resistance of the chain, prevent the chain plate from being broken due to abrasion, prolong the service life and reduce the frequency of frequent shutdown and maintenance of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of chains, in particular to an outer link and a chain. Background Art

[0002] A chain is a mechanical transmission device consisting of metal links or rings, commonly used in mechanical transmission and traction. It transmits power through the rotation of a sprocket and is used in a variety of mechanical applications, such as bicycles, agricultural machinery, compressors, and engine camshafts. Chains can also be used to block traffic, such as at the entrances of streets, rivers, or harbors.

[0003] However, the chains used in some industries work in harsh environments. During the operation of mechanical equipment, the chains need to withstand large tensile and impact loads and are easily worn, making the chain plates prone to breakage under the influence of these factors, resulting in frequent equipment shutdowns for maintenance and interruption of production. Utility Model Content

[0004] The purpose of the utility model is to provide an outer link and a chain, which can protect the chain plate, improve the wear resistance of the chain, avoid the breakage of the chain plate due to wear, extend the service life, and reduce the frequent shutdown and maintenance times of the equipment.

[0005] The embodiment of the present utility model is achieved as follows:

[0006] In a first aspect, the present invention provides an outer link, comprising:

[0007] a first outer link plate and a second outer link plate, wherein the first outer link plate and the second outer link plate are spaced apart from each other;

[0008] A first pin and a second pin, wherein the first pin is spaced apart from the second pin, and the first pin is connected to both the first outer link plate and the second outer link plate, and the second pin is connected to both the first outer link plate and the second outer link plate;

[0009] A first protection plate and a second protection plate, wherein the first protection plate is provided at an end portion of the first outer link plate, and the second protection plate is provided at an end portion of the second outer link plate.

[0010] In an optional embodiment, the first outer link plate and the second outer link plate are spaced apart along the first direction, and the first pin shaft and the second pin shaft are spaced apart along the second direction;

[0011] There are two first protection plates and two second protection plates, the two first protection plates are spaced apart along the third direction at both ends of the first outer link plate, and the two second protection plates are spaced apart along the third direction at both ends of the second outer link plate;

[0012] The first direction, the second direction and the third direction are perpendicular to each other.

[0013] In an optional embodiment, the two first protection plates are extended along the second direction; and / or,

[0014] The two second protection plates are extended along the second direction.

[0015] In an optional embodiment, the first protective plate includes a first protective portion and a second protective portion, the first protective portion is connected to the second protective portion, the first protective portion is provided on a side of the first outer link plate away from the second outer link plate, and the second protective portion is provided on the top surface or bottom surface of the first outer link plate; and / or,

[0016] The second protective plate includes a third protective portion and a fourth protective portion, the third protective portion is connected to the fourth protective portion, the third protective portion is arranged on the side of the second outer link plate away from the first outer link plate, and the fourth protective portion is arranged on the top surface or bottom surface of the second outer link plate.

[0017] In an optional embodiment, the side of the second protecting portion close to the fourth protecting portion is in the same plane as the side of the first outer link plate close to the second outer link plate; and / or,

[0018] The side surface of the fourth protecting portion close to the second protecting portion is in the same plane as the side surface of the second outer link plate close to the first outer link plate.

[0019] In an optional embodiment, the first protection plate is welded to the first outer link plate; and / or,

[0020] The second protection plate is welded to the second outer link plate.

[0021] In an optional embodiment, one of the first protective plate and the first outer link plate is provided with a first clamping groove, and the other is provided with a first clamping protrusion, and the first clamping protrusion cooperates with the first clamping groove; and / or,

[0022] One of the second protection plate and the second outer link plate is provided with a second clamping groove, and the other is provided with a second clamping protrusion, and the second clamping protrusion is matched with the second clamping groove.

[0023] In an optional embodiment, the first protection plate is L-shaped; and / or,

[0024] The second protection plate is L-shaped.

[0025] In an optional embodiment, the first protective plate is made of nickel-chromium alloy; and / or,

[0026] The second protection plate is made of nickel-chromium alloy.

[0027] In a second aspect, the present invention provides a chain comprising the outer link described in any one of the aforementioned embodiments.

[0028] The beneficial effects of the embodiments of the present utility model include:

[0029] The outer link includes a first outer link plate, a second outer link plate, a first pin shaft, a second pin shaft, a first protective plate and a second protective plate. The first outer link plate and the second outer link plate are arranged at intervals; the first pin shaft and the second pin shaft are arranged at intervals, and the first pin shaft is connected to the first outer link plate and the second outer link plate at the same time, and the second pin shaft is connected to the first outer link plate and the second outer link plate at the same time; the first protective plate is arranged at the end of the first outer link plate, and the second protective plate is arranged at the end of the second outer link plate.

[0030] That is to say, the first protective plate and the second protective plate can protect the end of the first outer link plate and the end of the second outer link plate respectively, thereby improving the wear resistance of the chain, avoiding the chain plate from breaking due to wear, and effectively extending the service life of the chain, thereby improving the quality of the chain and reducing the frequent shutdown and maintenance of the equipment.

[0031] The chain comprises an outer link with all the benefits of the outer link. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic structural diagram of a chain provided by an embodiment of the present utility model from a first perspective;

[0034] Figure 2 A schematic structural diagram of a chain from a second perspective provided by an embodiment of the present utility model;

[0035] Figure 3 A schematic structural diagram of an outer link from a first perspective provided by an embodiment of the present utility model;

[0036] Figure 4 A schematic structural diagram of an outer link from a second perspective provided by an embodiment of the present utility model;

[0037] Figure 5 A schematic structural diagram of an outer link from a third perspective provided by an embodiment of the present utility model;

[0038] Figure 6 This is a schematic structural diagram of an outer link provided in another embodiment of the present invention.

[0039] Icon: 1000-chain; 100-outer link; 10-first outer link plate; 11-first snap-in protrusion; 20-second outer link plate; 21-second snap-in protrusion; 30-first pin; 40-second pin; 50-first protective plate; 51-first protective part; 52-second protective part; 60-second protective plate; 61-third protective part; 62-fourth protective part; 200-inner link; 210-first inner link plate; 220-second inner link plate; 230-first roller; 240-second roller. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0045] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] As described in the background, a chain is a mechanical transmission device composed of metal links or rings, commonly used for mechanical transmission and traction. It transmits power through the rotation of a sprocket and is suitable for various mechanical applications, such as bicycles, agricultural machinery, compressors, and engine camshafts. However, chains are used in harsh operating environments in some equipment, requiring them to withstand large tensile and impact loads and are easily worn. These factors can cause chain plates to break, resulting in frequent equipment downtime for maintenance and interruptions to production.

[0047] Based on this, please refer to Figures 1-6 The embodiment of the present invention provides an outer link 100 and a chain 1000, which can effectively improve the technical problems mentioned above, that is, it can protect the chain plate, improve the wear resistance of the chain 1000, avoid the breakage of the chain plate due to wear, extend the service life, and reduce the frequent shutdown and maintenance times of the equipment.

[0048] It should be noted that the first direction mentioned in the following content is Figures 1-6 The X direction is shown in the second direction. Figures 1-6 The Y direction is shown in the figure, and the third direction is Figures 1-6 The outer link 100 and the chain 1000 will be described in detail below.

[0049] Please refer to Figure 1 and Figure 2 , Figure 1 This is a structural diagram of the chain 1000 provided in this embodiment from a first perspective. Figure 2 A schematic diagram of the structure of the chain 1000 provided in this embodiment from a second perspective, combined with Figure 1 and Figure 2The chain 1000 includes a plurality of outer links 100 and a plurality of inner links 200 , and the plurality of outer links 100 and the plurality of inner links 200 are alternately connected in sequence.

[0050] Specifically, please refer to Figure 3 and Figure 4 , Figure 3 This is a schematic structural diagram of the outer link 100 provided in this embodiment from a first perspective. Figure 4 This is a schematic structural diagram of the outer link 100 provided in this embodiment from a second perspective, combined with Figure 3 and Figure 4 The outer link 100 includes a first outer link plate 10, a second outer link plate 20, a first pin 30, a second pin 40, a first protective plate 50 and a second protective plate 60. The first outer link plate 10 and the second outer link plate 20 are spaced apart; the first pin 30 and the second pin 40 are spaced apart, and the first pin 30 is connected to the first outer link plate 10 and the second outer link plate 20 at the same time, and the second pin 40 is connected to the first outer link plate 10 and the second outer link plate 20 at the same time; the first protective plate 50 is arranged at the end of the first outer link plate 10, and the second protective plate 60 is arranged at the end of the second outer link plate 20.

[0051] That is to say, the first protective plate 50 and the second protective plate 60 can respectively protect the end of the first outer link plate 10 and the end of the second outer link plate 20, thereby improving the wear resistance of the chain 1000, avoiding the chain plate from breaking due to wear, and effectively extending the service life of the chain 1000, thereby improving the quality of the chain 1000 and reducing the frequent shutdown and maintenance times of the equipment.

[0052] Combine Figure 1 and Figure 2 The inner link 200 includes a first inner link plate 210, a second inner link plate 220, a first roller 230 and a second roller 240. The first inner link plate 210 and the second inner link plate 220 are spaced apart, and the first roller 230 and the second roller 240 are both located between the first inner link plate 210 and the second inner link plate 220. Figure 2 and Figure 3 Since the plurality of outer links 100 and the plurality of inner links 200 are alternately connected in sequence, during assembly, the first pin 30 of one outer link 100 and the second pin 40 of another adjacent outer link 100 are simultaneously passed through the first inner link plate 210 and the second inner link plate 220 of the same inner link 200, and the first roller 230 of the same inner link 200 is sleeved on the second pin 40 of one outer link 100, and the second roller 240 of the same inner link 200 is sleeved on the first pin 30 of another adjacent outer link 100.

[0053] Please continue to combine Figure 3 and Figure 4 In this embodiment, the first outer link plate 10 and the second outer link plate 20 are spaced apart along the first direction, and the first pin shaft 30 and the second pin shaft 40 are spaced apart along the second direction; in order to more comprehensively protect the first outer link plate 10 and the second outer link plate 20, the number of the first protection plates 50 and the second protection plates 60 are both two, and the two first protection plates 50 are spaced apart along the third direction at both ends of the first outer link plate 10, and the two second protection plates 60 are spaced apart along the third direction at both ends of the second outer link plate 20; wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0054] It is easy to understand that the two opposite ends of the first outer link plate 10 are provided with a first protective plate 50. Similarly, the two opposite ends of the second outer link plate 20 are provided with a second protective plate 60, so that both sides of the first outer link plate 10 and the second outer link plate 20 can be protected to prevent wear and breakage, thereby protecting the four sides of the formed chain 1000, further improving the wear resistance of the chain 1000, and comprehensively improving the quality of the chain 1000.

[0055] Of course, to better protect the ends of the outer link plates, the two first protection plates 50 extend along the second direction. Similarly, in this embodiment, the two second protection plates 60 extend along the second direction. It should be noted that because the first inner link plate 210, the second inner link plate 220, and the first roller 230 and the second roller 240 are disposed inside the first outer link plate 10 and the second outer link plate 20, the extended portions of the first protection plates 50 and the second protection plates 60 need to clear other structures such as the inner link plates and the rollers. In other words, the extended lengths of the first protection plates 50 and the second protection plates 60 need to be determined based on the actual design of the chain 1000.

[0056] Please refer to Figure 5 , Figure 5 The third perspective structural diagram of the outer link 100 provided in this embodiment, combined with Figure 5 Specifically, the first protective plate 50 includes a first protective portion 51 and a second protective portion 52, the first protective portion 51 is connected to the second protective portion 52, the first protective portion 51 is arranged on the side of the first outer link plate 10 away from the second outer link plate 20, and the second protective portion 52 is arranged on the top surface or bottom surface of the first outer link plate 10; the second protective plate 60 includes a third protective portion 61 and a fourth protective portion 62, the third protective portion 61 is connected to the fourth protective portion 62, the third protective portion 61 is arranged on the side of the second outer link plate 20 away from the first outer link plate 10, and the fourth protective portion 62 is arranged on the top surface or bottom surface of the second outer link plate 20.

[0057] By providing the first protection portion 51 and the second protection portion 52 , both side surfaces of the first outer link plate 10 can be protected. Similarly, by providing the third protection portion 61 and the fourth protection portion 62 , both side surfaces of the second outer link plate 20 can be protected, thereby improving the protection effect and enhancing the wear resistance of the chain 1000 .

[0058] It should be noted that the side of the first outer link plate 10 away from the second outer link plate 20 mentioned above can be understood as the outer side of the first outer link plate 10, and the side of the second outer link plate 20 away from the first outer link plate 10 can be understood as the outer side of the second outer link plate 20. Furthermore, since there are two first protective plates 50 and two second protective plates 60 in this embodiment, the second protective portion 52 of one first protective plate 50 can be located on the top surface of the first outer link plate 10, and the second protective portion 52 of the other first protective plate 50 can be located on the bottom surface of the first outer link plate 10. Similarly, the fourth protective portion 62 of one second protective plate 60 can be located on the top surface of the second outer link plate 20, and the fourth protective portion 62 of the other second protective plate 60 can be located on the bottom surface of the second outer link plate 20.

[0059] To prevent the first protective plate 50 from interfering with other components of the chain 1000 or impacting other devices during actual use, in this embodiment, the side of the second protective portion 52 proximal to the fourth protective portion 62 is flush with the side of the first outer link plate 10 proximal to the second outer link plate 20. Similarly, to prevent the second protective plate 60 from interfering with other components of the chain 1000, the side of the fourth protective portion 62 proximal to the second protective portion 52 is flush with the side of the second outer link plate 20 proximal to the first outer link plate 10.

[0060] It should be noted that the side of the first outer link plate 10 close to the second outer link plate 20 mentioned above can be understood as the inner side of the first outer link plate 10 , and the side of the second outer link plate 20 close to the first outer link plate 10 can be understood as the inner side of the second outer link plate 20 .

[0061] In addition, it should be noted that in this embodiment, the first protective plate 50 is L-shaped, and the second protective plate 60 is L-shaped. Of course, in other embodiments, the shapes of the first protective plate 50 and the second protective plate 60 can also be U-shaped, T-shaped, or S-shaped, etc.

[0062] Furthermore, in this embodiment, the first protective plate 50 is welded to the first outer link plate 10, and the second protective plate 60 is welded to the second outer link plate 20, which can make the connection between the two more stable. Of course, in other embodiments, the first protective plate 50 and the first outer link plate 10 can also be connected and fixed by a clamping method, and the second protective plate 60 and the second outer link plate 20 can also be connected and fixed by a clamping method.

[0063] Specifically, please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of the outer link 100 provided in other embodiments, combined with Figure 6 One of the first protective plate 50 and the first outer link plate 10 is provided with a first clamping groove (not shown in the figure), and the other is provided with a first clamping protrusion 11, and the first clamping protrusion 11 cooperates with the first clamping groove; similarly, one of the second protective plate 60 and the second outer link plate 20 is provided with a second clamping groove (not shown in the figure), and the other is provided with a second clamping protrusion 21, and the second clamping protrusion 21 cooperates with the second clamping groove.

[0064] The first protective plate 50 and the second protective plate 60 can be easily installed by snap-fitting, and can also be easily disassembled and replaced after being used for a long time.

[0065] In addition, in this embodiment, the first protective plate 50 is made of a nickel-chromium alloy, and the second protective plate 60 is made of a nickel-chromium alloy. Nickel-chromium alloy has high strength and good corrosion resistance, which can improve the wear resistance of the chain 1000. Of course, in other embodiments, the first protective plate 50 and the second protective plate 60 can also be made of stainless steel, copper alloy, tungsten alloy, etc.

[0066] In summary, an embodiment of the present invention provides an outer link 100 and a chain 1000, wherein the outer link 100 includes a first outer link plate 10, a second outer link plate 20, a first pin shaft 30, a second pin shaft 40, a first protective plate 50 and a second protective plate 60, wherein the first outer link plate 10 and the second outer link plate 20 are spaced apart; the first pin shaft 30 and the second pin shaft 40 are spaced apart, and the first pin shaft 30 is connected to the first outer link plate 10 and the second outer link plate 20 at the same time, and the second pin shaft 40 is connected to the first outer link plate 10 and the second outer link plate 20 at the same time; the first protective plate 50 is arranged at the end of the first outer link plate 10, and the second protective plate 60 is arranged at the end of the second outer link plate 20. That is to say, the first protective plate 50 and the second protective plate 60 can respectively protect the end of the first outer link plate 10 and the end of the second outer link plate 20, thereby improving the wear resistance of the chain 1000, avoiding the chain plate from breaking due to wear, and effectively extending the service life of the chain 1000, thereby improving the quality of the chain 1000 and reducing the frequent shutdown and maintenance times of the equipment.

[0067] Chain 1000 includes outer link 100 and has all the functions and benefits of outer link 100 .

[0068] The above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An outer link, characterized in that: include: A first outer link plate (10) and a second outer link plate (20), wherein the first outer link plate (10) and the second outer link plate (20) are spaced apart from each other; A first pin shaft (30) and a second pin shaft (40), wherein the first pin shaft (30) and the second pin shaft (40) are spaced apart, and the first pin shaft (30) is connected to the first outer link plate (10) and the second outer link plate (20) at the same time, and the second pin shaft (40) is connected to the first outer link plate (10) and the second outer link plate (20) at the same time; A first protective plate (50) and a second protective plate (60), wherein the first protective plate (50) is arranged at the end of the first outer link plate (10), and the second protective plate (60) is arranged at the end of the second outer link plate (20).

2. The outer link according to claim 1, characterized in that: The first outer link plate (10) and the second outer link plate (20) are spaced apart along a first direction, and the first pin shaft (30) and the second pin shaft (40) are spaced apart along a second direction; The number of the first protection plates (50) and the number of the second protection plates (60) are both two, the two first protection plates (50) are spaced apart along the third direction at both ends of the first outer link plate (10), and the two second protection plates (60) are spaced apart along the third direction at both ends of the second outer link plate (20); The first direction, the second direction and the third direction are perpendicular to each other.

3. The outer link according to claim 2, characterized in that: The two first protection plates (50) are extended along the second direction; and / or, The two second protection plates (60) are extended along the second direction.

4. The outer link according to claim 1, characterized in that The first protection plate (50) includes a first protection portion (51) and a second protection portion (52), the first protection portion (51) is connected to the second protection portion (52), the first protection portion (51) is arranged on the side of the first outer link plate (10) away from the second outer link plate (20), and the second protection portion (52) is arranged on the top surface or the bottom surface of the first outer link plate (10); and / or, The second protection plate (60) includes a third protection portion (61) and a fourth protection portion (62), wherein the third protection portion (61) is connected to the fourth protection portion (62), the third protection portion (61) is arranged on the side of the second outer link plate (20) away from the first outer link plate (10), and the fourth protection portion (62) is arranged on the top surface or the bottom surface of the second outer link plate (20).

5. The outer link according to claim 4, characterized in that: The side surface of the second protection portion (52) close to the fourth protection portion (62) is in the same plane as the side surface of the first outer link plate (10) close to the second outer link plate (20); and / or, The side surface of the fourth protection portion (62) close to the second protection portion (52) is in the same plane as the side surface of the second outer link plate (20) close to the first outer link plate (10).

6. The outer link according to any one of claims 1 to 5, characterized in that: The first protection plate (50) is welded to the first outer link plate (10); and / or, The second protection plate (60) is welded to the second outer link plate (20).

7. The outer link according to any one of claims 1 to 5, characterized in that: One of the first protective plate (50) and the first outer link plate (10) is provided with a first card slot, and the other is provided with a first card protrusion (11), the first card protrusion (11) being engaged with the first card slot; and / or, One of the second protection plate (60) and the second outer link plate (20) is provided with a second clamping groove, and the other is provided with a second clamping protrusion (21), and the second clamping protrusion (21) is matched with the second clamping groove.

8. The outer link according to any one of claims 1 to 5, characterized in that: The first protection plate (50) is L-shaped; and / or, The second protection plate (60) is L-shaped.

9. The outer link according to any one of claims 1 to 5, characterized in that: The material of the first protective plate (50) is nickel-chromium alloy; and / or, The second protection plate (60) is made of nickel-chromium alloy.

10. A chain, characterized in that: The invention comprises the outer chain link (100) according to any one of claims 1 to 9.

Images