High-strength oil seal chain

Abstract

The utility model relates to a high-strength oil seal chain, which belongs to the technical field of chain structures and comprises two inner chain plate bodies, and a chain component used for forming a chain structure is mounted between the outer sides of the two inner chain plate bodies. The chain assembly comprises two chain cylinders fixedly installed between the opposite sides of the two inner chain plate bodies, two sets of outer chain plate bodies abutting against the opposite sides of the two inner chain plate bodies correspondingly, connecting pins fixed to the sides, close to the inner chain plate bodies, of the outer chain plate bodies on the back sides, and injection holes formed in the tops of the chain cylinders. The communicating hole is formed in the top of the connecting pin, the inserting hole is formed in the front face of the outer chain plate body on the front face, and the sealing rings abut against the opposite sides of the two inner chain plate bodies respectively. According to the high-strength oil seal chain, outflow of internal lubricating oil can be reduced, so that the lubricating oil in the chain can be in a normal working state, and meanwhile, an external structure is not prone to being influenced.

Description

Technical Field

[0001] The present application relates to the technical field of chain structures, and in particular to a high-strength oil-sealed chain. Background Art

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction, chain-shaped objects used to block traffic channels, and chains used for mechanical transmission. Among similar products, chain product series are divided according to the basic structure of the chain, that is, according to the shape of the components, the parts and positions that engage with the chain, and the size ratio between the parts.

[0003] According to the chain disclosed in Chinese patent publication number CN219413412U, the patent can connect and transmit through a simple structure through the cooperation between the mounting pin, the sleeve, the bolt, the first outer link plate, the second outer link plate, and the first inner link plate and the second inner link plate, and can facilitate the installation and removal of the mounting pin, which is very convenient. In addition, lubricating oil can be added through the connecting hole and the oil filling hole to reduce wear.

[0004] However, since the sleeve and the mounting pin are only connected by abutment and lack a transition structure, a certain gap is usually left in the abutment state between the metals to ensure the effectiveness of the transmission, which causes the lubricating oil inside the sleeve to easily flow out, increasing external wear. In this regard, the present application provides a high-strength oil seal chain to solve the above problem. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present application provides a high-strength oil-sealed chain, which has the advantages of reducing the outflow of internal lubricating oil, and solves the shortcomings of the existing chain that the internal lubricating oil is easily outflowed during actual use and affects the external structure.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a high-strength oil-sealed chain, comprising two inner link plate bodies, wherein a chain assembly for forming a chain structure is installed between the outer sides of the two inner link plate bodies;

[0007] The chain assembly includes two chain barrels fixedly installed between opposite sides of the two inner link plate bodies, two groups of outer link plate bodies respectively abutting against the opposite sides of the two inner link plate bodies, a connecting pin fixed to the side of the outer link plate body close to the inner link plate body on the back side, an injection hole opened at the top of the chain barrel, a communicating hole opened at the top of the connecting pin, a plug-in hole opened on the front side of the outer link plate body, and a plurality of sealing rings respectively abutting against the opposite sides of the two inner link plate bodies.

[0008] By adopting the above technical solution, the outflow of internal lubricating oil can be reduced, so that the lubricating oil in the chain can play a normal working state while not easily affecting the external structure.

[0009] Furthermore, the chain assembly also includes a plurality of guide blocks respectively fixed on the opposite sides of the two inner link plate bodies, a plurality of guide grooves opened on the side of the outer link plate body close to the inner link plate body, an internal thread groove opened on the front end of the top of the connecting pin, a plurality of countersunk grooves opened on the front top of the outer link plate body, and mounting bolts inserted into the inner side of the countersunk grooves.

[0010] By adopting the above technical solution, the chain can be used normally and is convenient to disassemble and replace.

[0011] Furthermore, the position and number of the guide blocks correspond to the position and number of the chain barrels, and the guide blocks are plugged into and movably connected to the inner side of the corresponding guide groove.

[0012] By adopting the above technical solution, the guide block can rotate inside the guide groove, thereby guiding the moving direction of the chain, thereby improving the stability of the transmission.

[0013] Furthermore, the positions and numbers of the guide blocks and guide grooves correspond to each other, and the guide blocks have a circular shape.

[0014] By adopting the above technical solution, the circle can play a guiding role.

[0015] Furthermore, one front end of the connecting pin sequentially passes through the guide block, the inner chain plate body, the chain barrel and the corresponding plug-in hole and extends to the outside.

[0016] By adopting the above technical solution, the connecting pin can penetrate the guide block, the inner link plate body, the chain barrel and the outer link plate body together.

[0017] Furthermore, the bottom end of the mounting bolt passes through the top of the corresponding outer link plate body and is threadedly connected to the inner side of the corresponding internal thread groove.

[0018] By adopting the above technical solution, the mounting bolts can connect and fix the corresponding outer link plate body and the connecting pin.

[0019] Furthermore, the positions of the injection hole and the corresponding connecting hole correspond to each other, the interior of the injection hole is connected to the interior of the connecting hole, a storage cavity for storing lubricating oil is opened inside the connecting pin, and the interior of the storage cavity is connected to the interior of the connecting hole.

[0020] By adopting the above technical solution, the lubricating oil can enter the interior of the storage cavity through the injection hole and the communicating hole, thereby facilitating continuous lubrication of the outer side of the connecting pin.

[0021] Furthermore, the sealing ring abuts against the outer side of the corresponding connecting pin, and the side of the sealing ring away from the inner link plate body abuts against the side of the outer link plate body close to the inner link plate body.

[0022] By adopting the above technical solution, the sealing ring can enhance the sealing effect on the connection point outside the connecting pin, thereby reducing the overflow of internal lubricating oil.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] This high-strength oil-sealed chain, through the use of chain components on the outside of the inner link plate body, can reduce the outflow of internal lubricating oil, so that the lubricating oil in the chain can function normally while not easily affecting the external structure, thereby indirectly improving the strength of the chain and enabling it to be used stably for a long time. At the same time, it can also be easily replaced to ensure the effectiveness of the seal, thereby effectively improving the practicality of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 For this application structure Figure 1 Schematic diagram from above;

[0027] Figure 3 For this application structure Figure 1 A partial enlarged schematic diagram of part A in the middle.

[0028] In the figure: 1. Inner link plate body; 200. Chain assembly; 201. Chain barrel; 202. Outer link plate body; 203. Connecting pin; 204. Injection hole; 205. Connecting hole; 206. Plug hole; 207. Sealing ring; 208. Guide block; 209. Guide groove; 210. Internal thread groove; 211. Countersunk groove; 212. Mounting bolt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] See also Figures 1 to 3, the present application provides a technical solution: a high-strength oil-sealed chain, comprising two inner link plate bodies 1, a chain assembly 200 for forming a chain structure is installed between the outer sides of the two inner link plate bodies 1;

[0031] In the above-mentioned embodiment, by using the chain assembly 200 outside the inner link plate body 1, the outflow of the internal lubricating oil can be reduced, so that the lubricating oil in the chain can play a normal working state while not easily affecting the external structure, thereby indirectly improving the use strength of the chain and enabling it to be used stably for a long time. At the same time, it can also be easily replaced to ensure the effectiveness of the seal, thereby effectively improving the practicality of the chain.

[0032] In this embodiment, the chain assembly 200 is a structure for allowing the chain to function normally and also for sealing the internal lubricating oil.

[0033] like Figure 1 、 Figure 2 and Figure 3 As shown, the chain assembly 200 includes two chain barrels 201 fixedly mounted between opposite sides of two inner link plate bodies 1, two sets of outer link plate bodies 202 respectively abutting against opposite sides of the two inner link plate bodies 1, a connecting pin 203 fixed to the back side of the outer link plate body 202 close to the inner link plate body 1, an injection hole 204 provided on the top of the chain barrel 201, a communicating hole 205 provided on the top of the connecting pin 203, a plug hole 206 provided on the front side of the front outer link plate body 202, and a plurality of sealing rings 207 respectively abutting against opposite sides of the two inner link plate bodies 1;

[0034] The chain assembly 200 also includes a plurality of guide blocks 208 respectively fixed on the opposite sides of the two inner link plate bodies 1, a plurality of guide grooves 209 opened on the side of the outer link plate body 202 close to the inner link plate body 1, an internal thread groove 210 opened on the front end of the top of the connecting pin 203, a plurality of countersunk grooves 211 opened on the top of the front outer link plate body 202, and mounting bolts 212 inserted into the inner side of the countersunk grooves 211.

[0035] It should be noted that the position and number of the guide blocks 208 correspond to the position and number of the chain barrel 201 respectively. The guide blocks 208 are plugged into and movably connected to the inner side of the corresponding guide groove 209. The position and number of the guide blocks 208 and the guide groove 209 correspond to each other. The outer shape of the guide block 208 is circular, so that the guide block 208 can rotate on the inner side of the guide groove 209, thereby guiding the movement direction of the chain, thereby improving the stability of the transmission.

[0036] In addition, the front end of the connecting pin 203 passes through the guide block 208, the inner link plate body 1, the chain barrel 201 and the corresponding plug-in hole 206 in sequence and extends to the outside, so that the connecting pin 203 can penetrate the guide block 208, the inner link plate body 1, the chain barrel 201 and the outer link plate body 202 together, and the bottom end of the mounting bolt 212 passes through the top of the corresponding outer link plate body 202 and is threadedly connected to the inner side of the corresponding internal thread groove 210, so that the mounting bolt 212 can connect and fix the corresponding outer link plate body 202 and the connecting pin 203.

[0037] At the same time, the positions of the injection hole 204 and the corresponding connecting hole 205 correspond to each other, the interior of the injection hole 204 and the interior of the connecting hole 205 are connected, and a storage cavity for storing lubricating oil is opened inside the connecting pin 203, and the interior of the storage cavity and the interior of the connecting hole 205 are connected, so that the lubricating oil can enter the interior of the storage cavity through the injection hole 204 and the connecting hole 205, which is convenient for continuous lubrication of the outside of the connecting pin 203. A rubber plug can be inserted into the inside of the injection hole 204 to seal the opening of the injection hole 204, or an oiling nozzle can be used to achieve the same effect, and it can be used according to actual needs and costs.

[0038] In addition, the sealing ring 207 abuts against the outer side of the corresponding connecting pin 203, and the side of the sealing ring 207 away from the inner link plate body 1 abuts against the side of the outer link plate body 202 close to the inner link plate body 1, so that the sealing ring 207 can enhance the sealing effect of the connection on the outer side of the connecting pin 203, thereby reducing the overflow of internal lubricating oil. The sealing ring 207 can be a polymer material seal, such as a polymer rubber ring. The sealing ring 207 is an annular seal with a notch, which relies on the elasticity after being pressed together to press against the inner hole wall of the stationary part to perform a sealing function.

[0039] It should also be noted that the outer sides of the inner link plate body 1, the outer link plate body 202 and the chain barrel 201 are all provided with a wear-resistant coating. Specifically, the wear-resistant coating is a metal or ceramic wear-resistant coating. The metal wear-resistant coating is formed by high-speed spraying of metal powder or wire and other materials, heating and melting the metal particles and then spraying them on the metal surface. This coating has the characteristics of wear resistance, corrosion resistance, and flame retardancy. The ceramic coating is a wear-resistant coating prepared by sputtering or spraying ceramic powder and other materials on the metal surface. This coating has extremely high wear resistance and corrosion resistance, such as ceramic coatings such as alumina and aluminum silicate. Different wear-resistant coatings are selected for use according to actual needs to improve the actual wear resistance of the outer surface of the chain and the overall strength.

[0040] The working principle of the above embodiment is:

[0041] During assembly, the connecting pin 203 is inserted into the interior of the chain barrel 201 and passed through the corresponding plug hole 206, and the guide block 208 is docked and inserted into the inner side of the corresponding guide groove 209. The mounting bolt 212 is inserted into the interior of the countersunk groove 211 and then rotated so that the mounting bolt 212 is threadedly connected to the interior of the corresponding internal thread groove 210, completing the installation of the connecting pin 203. The lubricating oil can be injected into the interior of the chain barrel 201 and the connecting pin 203 through the cooperation between the injection hole 204 and the connecting hole 205, which can play a lubricating role. Under the action of the sealing ring 207, the outer connection between the chain barrel 201 and the connecting pin 203 can play a certain sealing role, which can reduce the overflow of lubricating oil and enable the chain to be used stably for a long time.

[0042] Compared with the prior art, this high-strength oil-sealed chain, through the use of the chain assembly 200 on the outside of the inner link plate body 1, can reduce the outflow of internal lubricating oil, so that the lubricating oil in the chain can function normally while not easily affecting the external structure, thereby indirectly improving the strength of the chain and enabling it to be used stably for a long time. At the same time, it can also be easily replaced to ensure the effectiveness of the seal, thereby effectively improving the practicality of the chain and solving the problem that the internal lubricating oil of the existing chain is easy to flow out and affect the external structure during actual use.

Claims

1. A high-strength oil-sealed chain comprising two inner link plate bodies (1), characterized in that: A chain assembly (200) for forming a chain structure is installed between the outer sides of the two inner link plate bodies (1); The chain assembly (200) comprises two chain barrels (201) fixedly mounted between opposite sides of two inner chain plate bodies (1), two groups of outer chain plate bodies (202) respectively abutting against opposite sides of the two inner chain plate bodies (1), a connecting pin (203) fixed to the back side of the outer chain plate body (202) close to the side of the inner chain plate body (1), an injection hole (204) opened at the top of the chain barrel (201), a communicating hole (205) opened at the top of the connecting pin (203), a plug-in hole (206) opened at the front side of the outer chain plate body (202), and a plurality of sealing rings (207) respectively abutting against opposite sides of the two inner chain plate bodies (1).

2. A high-strength oil-sealed chain according to claim 1, characterized in that: The chain assembly (200) further comprises a plurality of guide blocks (208) respectively fixed to opposite sides of the two inner link plate bodies (1), a plurality of guide grooves (209) provided on the side of the outer link plate body (202) close to the inner link plate body (1), an internal thread groove (210) provided on one end of the top front of the connecting pin (203), a plurality of countersunk grooves (211) provided on the top of the outer link plate body (202) on the front side, and a mounting bolt (212) inserted into the inner side of the countersunk groove (211).

3. A high-strength oil-sealed chain according to claim 2, characterized in that: The position and number of the guide blocks (208) correspond to the position and number of the chain barrel (201), and the guide blocks (208) are plugged into and movably connected to the inner side of the corresponding guide groove (209).

4. A high-strength oil-sealed chain according to claim 2, characterized in that: The positions and numbers of the guide blocks (208) and the guide grooves (209) correspond to each other, and the guide blocks (208) have a circular shape.

5. The high-strength oil-sealed chain according to claim 2, characterized in that: One front end of the connecting pin (203) sequentially passes through the guide block (208), the inner chain plate body (1), the chain barrel (201) and the corresponding plug-in hole (206) and extends to the outside.

6. The high-strength oil-sealed chain according to claim 2, characterized in that: The bottom end of the mounting bolt (212) passes through the top of the corresponding outer link plate body (202) and is threadedly connected to the inner side of the corresponding internal thread groove (210).

7. The high-strength oil-sealed chain according to claim 1, characterized in that: The injection hole (204) and the corresponding connecting hole (205) are positioned correspondingly, the interior of the injection hole (204) and the interior of the connecting hole (205) are connected, and a storage cavity for storing lubricating oil is provided inside the connecting pin (203), and the interior of the storage cavity and the interior of the connecting hole (205) are connected.

8. The high-strength oil-sealed chain according to claim 1, characterized in that: The sealing ring (207) abuts against the outer side of the corresponding connecting pin (203), and the side of the sealing ring (207) away from the inner link plate body (1) abuts against the side of the outer link plate body (202) close to the inner link plate body (1).

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