Self-lubricating anti-abrasion type roll shaft and shaft sleeve combined structure

Abstract

The utility model belongs to the technical field of roll shafts, and particularly relates to a self-lubricating anti-abrasion type roll shaft sleeve combined structure which comprises a roll shaft body. The interior of the roll shaft body is hollow; a connecting rod is fixedly connected to the interior of the roll shaft body; the middle part of the connecting rod is rotationally connected with a plurality of connecting rings; the connecting rings are distributed in a linear array state; a plurality of fan blades are fixedly connected to the middle part of the connecting ring; the fan blades are distributed in a circumferential array state; a plurality of heat dissipation holes are formed in the end part of the roll shaft body; the heat dissipation holes are distributed in a circumferential array state; the end part of the roll shaft body is fixedly connected with two connecting shafts; through the structure, air circulation can be effectively formed, dissipation of heat in the roll shaft body is accelerated, the temperature of all parts of the roll shaft body is more uniform, thermal deformation caused by local overheating of the roll shaft body is reduced, and the inner surface area of the roll shaft body is increased through the hollow structure in the roll shaft body; and the heat can be more sufficiently transferred into the air.

Description

Technical Field

[0001] This utility model belongs to the field of roller technology, specifically a self-lubricating and wear-resistant roller bushing combination structure. Background Technology

[0002] A roller is a cylindrical mechanical part widely used in the mechanical field. It has a smooth outer surface and its cross-section is generally circular. The diameter varies depending on the specific application. Its main function is to realize operations such as conveying, supporting or processing objects through rotation. It is widely used in manufacturing, logistics, papermaking, printing and other industries.

[0003] A bushing is a mechanical part that is fitted onto a shaft. It is usually cylindrical, typically a hollow cylinder, and its inner diameter matches the outer diameter of the shaft to achieve a tight fit. Bushings are mainly used to reduce friction and wear between the shaft and other components, making its rotation smoother and thus reducing energy loss.

[0004] In existing roller and bushing assembly structures, the roller is usually made of metal or other materials. When it rotates, the molecules and atoms inside the material will move and rub against each other, which will generate heat. However, the heat dissipation effect of the roller is not very good, which may lead to thermal deformation inside the roller.

[0005] Therefore, this utility model provides a self-lubricating and wear-resistant roller shaft sleeve combination structure. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A self-lubricating and wear-resistant roller shaft sleeve assembly structure includes a roller shaft body; the interior of the roller shaft body is hollow; a connecting rod is fixedly connected inside the roller shaft body; multiple connecting rings are rotatably connected to the middle of the connecting rod; the connecting rings are arranged in a linear array; multiple fan blades are fixedly connected to the middle of the connecting rings; the fan blades are arranged in a circumferential array; multiple heat dissipation holes are opened at the end of the roller shaft body; the heat dissipation holes are arranged in a circumferential array; two connecting shafts are fixedly connected to the end of the roller shaft body; the two connecting shafts are symmetrically arranged; through the above structure, air circulation can be effectively formed, accelerating the dissipation of heat inside the roller shaft body.

[0008] Preferably, a sleeve is slidably connected to the middle of the roller body; multiple cover plates are hinged to the ends of the sleeve; the cover plates are distributed in a circumferential array; multiple threaded holes are opened at the ends of the roller body, and the threaded holes are distributed at positions corresponding to the cover plates; bolts are threaded into the internal threads of the threaded holes; the bolts contact the top of the cover plates; through the above structure, the sleeve can effectively protect the roller body and reduce its wear.

[0009] Preferably, two flat keys are fixedly connected to the middle of the connecting shaft; the two flat keys are symmetrically arranged; a bushing body is slidably connected to the side wall of the flat key; the bushing body is made of a self-lubricating material; through the above structure, the bushing body can be quickly installed and disassembled, facilitating its maintenance and replacement.

[0010] Preferably, the bushing body has multiple oil injection holes in the middle; the oil injection holes are distributed in a circumferential array; the bushing body has multiple oil passage grooves inside, and the oil passage grooves are located at positions corresponding to the oil injection holes; through the above structure, the lubricating oil can be effectively guided to the mating surfaces of the connecting shaft and the bushing body, further lubricating the friction parts.

[0011] Preferably, a plurality of anti-slip strips are bonded to the middle of the sleeve; the anti-slip strips are distributed in a circumferential array; through the above structure, the anti-slip strips can effectively increase the friction between the sleeve and other components, thereby reducing the slippage of other components on the sleeve.

[0012] Preferably, a protective pad is adhered to the bottom of the cover plate; the protective pad is made of rubber; through the above structure, the protective pad can effectively protect the end of the roller body and reduce the friction on it.

[0013] Preferably, the sleeve is made of metal; the middle part of the sleeve is coated with an anti-corrosion layer; through the above structure, the rust and chemical corrosion of the sleeve surface can be effectively reduced, thereby extending its service life.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The self-lubricating and wear-resistant roller shaft sleeve assembly structure of this utility model, by making the roller shaft body a hollow structure with multiple rotating fan blades installed inside, and opening heat dissipation holes at both ends of the roller shaft, can effectively form air circulation, accelerate the dissipation of heat inside the roller shaft body, make the temperature of each part of the roller shaft body more uniform, reduce thermal deformation caused by overheating inside the roller shaft body, and the hollow structure inside the roller shaft body increases the inner surface area of ​​the roller shaft body, so that heat can be more fully transferred to the air.

[0016] 2. The self-lubricating and wear-resistant roller shaft sleeve assembly structure of this utility model involves inserting the sleeve onto the roller shaft body, rotating the end cover plate to make it contact the end of the roller shaft body, and then rotating the bolt to insert it into the threaded hole. The sleeve can effectively protect the roller shaft body and reduce its wear. The sleeve is detachable, so when the sleeve is worn, it can be quickly removed and replaced, reducing the need to replace the entire roller shaft body. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the roller body in this utility model;

[0020] Figure 3 This is a schematic diagram of the bolt structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the oil tank structure in this utility model.

[0022] In the diagram: 1. Roller body; 11. Connecting rod; 12. Connecting ring; 13. Fan blade; 14. Heat dissipation hole; 15. Connecting shaft; 2. Sleeve; 21. Cover plate; 22. Threaded hole; 23. Bolt; 3. Flat key; 31. Bushing body; 4. Oil injection hole; 41. Oil groove; 5. Anti-slip strip; 6. Protective pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 3As shown in the embodiment of this utility model, a self-lubricating and wear-resistant roller shaft sleeve assembly structure includes a roller shaft body 1; the interior of the roller shaft body 1 is hollow; a connecting rod 11 is fixedly connected inside the roller shaft body 1; multiple connecting rings 12 are rotatably connected to the middle of the connecting rod 11; the connecting rings 12 are arranged in a linear array; multiple fan blades 13 are fixedly connected to the middle of the connecting rings 12; the fan blades 13 are arranged in a circumferential array; multiple heat dissipation holes 14 are opened at the end of the roller shaft body 1; the heat dissipation holes 14 are arranged in a circumferential array; two connecting shafts 15 are fixedly connected to the end of the roller shaft body 1; the two connecting shafts 15 are symmetrically arranged; during operation, when the roller shaft body 1 rotates, The molecules and atoms inside the roller body 1 will undergo relative motion and friction, thereby generating heat. At this time, external air enters the interior of the roller body 1 through the heat dissipation hole 14, which in turn drives the fan blade 13 inside the roller body 1 to rotate, accelerating the air circulation inside the roller body 1. The heat is dissipated from the heat dissipation hole 14 at the other end. Through the above structure, air circulation can be effectively formed, accelerating the dissipation of heat inside the roller body 1, making the temperature of each part of the roller body 1 more uniform, reducing thermal deformation caused by local overheating of the roller body 1. The hollow structure inside the roller body 1 increases the inner surface area of ​​the roller body 1, allowing heat to be transferred to the air more fully.

[0026] like Figure 1 and Figure 3 As shown, a sleeve 2 is slidably connected to the middle of the roller body 1; multiple cover plates 21 are hinged to the ends of the sleeve 2; the cover plates 21 are distributed in a circumferential array; multiple threaded holes 22 are opened at the ends of the roller body 1, and the threaded holes 22 are distributed at positions corresponding to the cover plates 21; bolts 23 are threadedly connected inside the threaded holes 22; the bolts 23 contact the top of the cover plates 21; during operation, the sleeve 2 is inserted into the roller body 1, and the cover plates 21 at its ends are rotated to contact the ends of the roller body 1, and then rotated... The rotating bolt 23 is inserted into the threaded hole 22. When the sleeve 2 needs to be replaced or repaired, the rotating bolt 23 is used to remove it from the threaded hole 22, and the sleeve 2 can be removed from the roller body 1. Through the above structure, the sleeve 2 can effectively protect the roller body 1 and reduce its wear. The sleeve 2 is detachable, so when the sleeve 2 is worn, it can be quickly removed and replaced, reducing the need to replace the entire roller body 1 and improving the flexibility and practicality of use.

[0027] like Figure 1 , Figure 2 and Figure 4As shown, two flat keys 3 are fixedly connected to the middle of the connecting shaft 15; the two flat keys 3 are symmetrically arranged; a bushing body 31 is slidably connected to the side wall of the flat key 3; the bushing body 31 is made of self-lubricating material; during operation, the connecting shaft 15 and the bushing body 31 are connected by the flat keys 3. The bushing body 31 is made of self-lubricating material, which can form a uniform lubricating film between the connecting shaft 15 and the bushing body 31. Through the above structure, the bushing body 31 can be quickly installed and disassembled, which is convenient for maintenance and replacement. The bushing body 31 is made of self-lubricating material, which effectively reduces the need for regular lubrication, thereby reducing the frequency of maintenance and improving the reliability of the bushing body 31.

[0028] like Figure 1 and Figure 4 As shown, the bushing body 31 has multiple oil injection holes 4 in the middle; the oil injection holes 4 are distributed in a circumferential array; the bushing body 31 has multiple oil passage grooves 41 inside, and the oil passage grooves 41 are set at positions corresponding to the oil injection holes 4; during operation, lubricating oil is injected into the bushing body 31 through the oil injection holes 4, and the lubricating oil flows to the connecting shaft 15 through the oil passage grooves 41. Through the above structure, the lubricating oil can be effectively guided to the mating surfaces of the connecting shaft 15 and the bushing body 31, further lubricating the friction parts, thereby extending the service life of the connecting shaft 15 and the bushing body 31.

[0029] like Figure 1 As shown, multiple anti-slip strips 5 are bonded to the middle of the sleeve 2; the anti-slip strips 5 are distributed in a circumferential array; during operation, the sleeve 2 often needs to be connected to other components. By setting anti-slip strips 5 on the sleeve 2, the anti-slip strips 5 can effectively increase the friction between the sleeve 2 and other components through the above structure, thereby reducing the slippage of other components on the sleeve 2 and effectively improving the stability of the connection.

[0030] like Figure 3 As shown, a protective pad 6 is adhered to the bottom of the cover plate 21; the protective pad 6 is made of rubber; during operation, the cover plate 21 may rub against the end of the roller body 1. The protective pad 6, made of rubber, is provided at the bottom of the cover plate 21 and has a certain elasticity. Through the above structure, the protective pad 6 can effectively protect the end of the roller body 1 and reduce the friction. At the same time, the protective pad 6 can also increase the friction between the cover plate 21 and the roller body 1, making the connection between the cover plate 21 and the roller body 1 more secure.

[0031] like Figure 1 and Figure 3As shown, sleeve 2 is made of metal; the middle part of sleeve 2 is coated with an anti-corrosion layer; during operation, sleeve 2 is made of metal and has high hardness and strength. The anti-corrosion layer is coated on its surface. Through the above structure, the rust and chemical corrosion of sleeve 2 can be effectively reduced, thereby extending its service life and enhancing the wear resistance of sleeve 2.

[0032] During operation, as the roller body 1 rotates, relative motion and friction occur between molecules and atoms within the material of the roller body 1, generating heat. External air enters the roller body 1 through the heat dissipation holes 14, driving the fan blades 13 inside the roller body 1 to rotate, accelerating airflow within the roller body 1. Heat is dissipated from the heat dissipation holes 14 at the other end. This structure effectively forms air circulation, accelerating heat dissipation within the roller body 1, resulting in more uniform temperature across all parts of the roller body 1, reducing thermal deformation caused by localized overheating. The hollow structure inside the roller body 1 increases the internal surface area, allowing heat to be more fully transferred to the air. The sleeve 2 is inserted into the roller body... On the roller body 1, rotate the end cover plate 21 to make it contact the end of the roller body 1, and then rotate the bolt 23 to insert it into the threaded hole 22. When the sleeve 2 needs to be replaced or repaired, rotate the bolt 23 to remove it from the threaded hole 22, and the sleeve 2 can be removed from the roller body 1. Through the above structure, the sleeve 2 can effectively protect the roller body 1 and reduce its wear. The sleeve 2 is detachable, so when the sleeve 2 is worn, it can be quickly removed and replaced, reducing the need to replace the entire roller body 1, and improving the flexibility and practicality of use. The connecting shaft 15 and the bushing body 31 are connected by a flat key 3. The bushing body 31 is made of self-lubricating material, which can prevent the connecting shaft 15 from contacting the shaft. A uniform lubricating film is formed between the bushing bodies 31. This structure allows for quick installation and disassembly of the bushing bodies 31, facilitating maintenance and replacement. The bushing bodies 31 are made of self-lubricating material, effectively reducing the need for periodic lubrication, thus decreasing maintenance frequency and improving reliability. Lubricating oil is injected into the bushing bodies 31 through the oil injection hole 4, and flows to the connecting shaft 15 through the oil groove 41. This structure effectively guides the lubricating oil to the mating surfaces of the connecting shaft 15 and the bushing bodies 31, further lubricating the friction points and extending the service life of both the connecting shaft 15 and the bushing bodies 31. Since the sleeve 2 often needs to connect to other components, a protective film is provided on the sleeve 2. The sliding strip 5, through the above structure, effectively increases the friction between the sleeve 2 and other components, thereby reducing the slippage of other components on the sleeve 2 and effectively improving the stability of the connection. The cover plate 21 may rub against the end of the roller body 1. A protective pad 6, made of rubber with a certain elasticity, is provided at the bottom of the cover plate 21. Through the above structure, the protective pad 6 effectively protects the end of the roller body 1, reducing its friction. Simultaneously, the protective pad 6 also increases the friction between the cover plate 21 and the roller body 1, making the connection between the cover plate 21 and the roller body 1 more secure. The sleeve 2 is made of metal with high hardness and strength, and an anti-corrosion layer is plated on its surface. Through the above structure…This effectively reduces rust and chemical corrosion on the surface of sleeve 2, thereby extending its service life and enhancing its wear resistance.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating and wear-resistant roller shaft and bushing assembly structure, characterized in that: The roller shaft body (1) is hollow inside. A connecting rod (11) is fixed inside the roller shaft body (1). Multiple connecting rings (12) are rotatably connected to the middle of the connecting rod (11). The connecting rings (12) are arranged in a linear array. Multiple fan blades (13) are fixed to the middle of the connecting rings (12). The fan blades (13) are arranged in a circumferential array. Multiple heat dissipation holes (14) are opened at the ends of the roller shaft body (1). The heat dissipation holes (14) are arranged in a circumferential array. Two connecting shafts (15) are fixed to the ends of the roller shaft body (1). The two connecting shafts (15) are arranged symmetrically.

2. The self-lubricating anti-wear roller shaft sleeve assembly of claim 1, wherein: A sleeve (2) is slidably connected to the middle of the roller body (1); multiple cover plates (21) are hinged to the end of the sleeve (2); the cover plates (21) are distributed in a circumferential array; multiple threaded holes (22) are opened at the end of the roller body (1), and the threaded holes (22) are distributed at positions corresponding to the cover plates (21); bolts (23) are threaded inside the threaded holes (22); the bolts (23) are in contact with the top of the cover plates (21).

3. The self-lubricating anti-wear roller shaft sleeve assembly of claim 1, wherein: Two flat keys (3) are fixedly connected to the middle of the connecting shaft (15); the two flat keys (3) are symmetrically arranged; a bushing body (31) is slidably connected to the side wall of the flat key (3); the bushing body (31) is made of self-lubricating material.

4. The self-lubricating and wear-resistant roller shaft sleeve assembly structure according to claim 3, characterized in that: The bushing body (31) has multiple oil injection holes (4) in the middle; the oil injection holes (4) are distributed in a circular array; the bushing body (31) has multiple oil passage grooves (41) inside, and the oil passage grooves (41) are located at positions corresponding to the oil injection holes (4).

5. The self-lubricating and wear-resistant roller shaft sleeve assembly structure according to claim 2, characterized in that: Multiple anti-slip strips (5) are bonded to the middle of the sleeve (2); the anti-slip strips (5) are distributed in a circumferential array.

6. The self-lubricating and wear-resistant roller shaft and bushing assembly structure according to claim 2, characterized in that: A protective pad (6) is bonded to the bottom of the cover plate (21); the protective pad (6) is made of rubber.

7. The self-lubricating and wear-resistant roller shaft sleeve assembly structure according to claim 2, characterized in that: The sleeve (2) is made of metal; the middle part of the sleeve (2) is coated with an anti-corrosion layer.

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