Wear-resistant high-lubricating oil pump gear

Abstract

The utility model relates to lubricating oil pump structure technical field provides a kind of wear-resistant type high lubricating oil pump gear, including carbon steel main body, the both sides of carbon steel main body are fixed with installation shaft and self-lubricating wear-resistant component.The utility model stores solid lubricating oil paste in the clamping cavity inside side shell, when gear runs on lubricating oil pump, the friction heat generated in meshing gradually softens solid lubricating oil paste, exports through the oil guide pipe of the equal-angle distribution of side shell outer wall, exported lubricating oil is guided through the oil guide groove between gear groove and oil guide pipe, accurately conveyed to the meshing area of oblique tooth, realizes the uniform directional oil supply effect, reduces metal direct contact, and the wear-resistant effect is optimized by self-lubricating, further, the grid texture of laser grid oil storage line can store lubricating oil, form continuous oil film, still can maintain effective lubrication in the stage of lubricating oil pump oil shortage or start-stop, avoid dry friction.

Description

Technical Field

[0001] This utility model relates to the technical field of lubricating oil pump structure, and in particular to a wear-resistant high lubricity oil pump gear. Background Technology

[0002] Lubricating oil pumps are commonly used in CNC machine tools, machining centers, grinding machines, and lathes. They provide precise and quantitative lubricating oil to precision moving parts such as spindle bearings, ball screws, and guideways of machine tools, which helps reduce minor wear and maintain the machining accuracy of the equipment. Gears are the core transmission components in lubricating oil pumps. Their core function is to transmit power, adjust the pump's output parameters, and optimize the smoothness and reliability of the transmission process. For example, patent CN220452621U discloses a gear transmission structure between a lubricating oil pump and a crankshaft. This structure includes a connecting shaft connected to the non-drive end of the crankshaft. A shaft end cover is provided on the outer side of the connecting shaft, and a lubricating oil pump is mounted on the shaft end cover. A small gear is fixedly mounted on the drive shaft of the lubricating oil pump, and a large gear is fixedly mounted on the connecting shaft. The large gear meshes with the small gear, and this meshing transmission increases the output power of the lubricating oil pump. This gear transmission structure between the lubricating oil pump and the crankshaft, by mounting a large gear on the connecting shaft and a small gear on the drive shaft of the lubricating oil pump, allows for increased output power of the lubricating oil pump by adjusting the gear ratio between the large and small gears. Furthermore, the output power can be adjusted, thus meeting the lubricating oil requirements of the diaphragm compressor while achieving energy conservation and emission reduction. While the gear transmission structure between the lubricating oil pump and the crankshaft described above can be used by installing a large gear on the connecting shaft and a small gear on the drive shaft of the lubricating oil pump, with the large and small gears meshing and engaging, and adjusting the gear ratio between the large and small gears to increase the output power of the lubricating oil pump, and can also adjust the output power to meet the lubricating oil demand of the diaphragm compressor while achieving energy saving and emission reduction, its lubrication effect depends entirely on the output stability of the lubricating oil pump. Once the pump body experiences malfunctions such as fluctuations in oil supply pressure or insufficient oil quantity, the meshing area will directly lose lubrication protection. In gear transmission, a continuous oil film in the meshing area is key to inhibiting direct metal-to-metal contact wear. This passive reliance leads to a sharp increase in wear risk. Furthermore, its gears rely solely on the hardness of the base material itself to withstand meshing friction, resulting in low wear resistance. Therefore, it is necessary to design a wear-resistant, high-lubricity oil pump gear. Utility Model Content

[0003] The purpose of this invention is to provide a wear-resistant high-lubricating oil pump gear to solve the defects of existing high-lubricating oil pump gears, such as low wear resistance and short service life.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a wear-resistant high-lubricity oil pump gear, comprising a carbon steel body; The carbon steel body is fixed with mounting shafts and self-lubricating wear-resistant components on both sides. The self-lubricating wear-resistant components include side shells fixed between the mounting shafts and the carbon steel body. The side shells have a clamping cavity inside, and solid lubricating oil paste is installed inside the clamping cavity. Oil guide pipes are evenly arranged on the outer wall of the side shell, and sealing cover plates are evenly installed on the side shell by fixing bolts. The outer wall of the carbon steel body is provided with a toothed ring, and oblique teeth are evenly arranged on the toothed ring. The outer wall of the oblique teeth is provided with a diamond-like carbon coating, and the oblique teeth on the inner side of the diamond-like carbon coating are provided with an epoxy acrylate microcapsule functional layer.

[0005] Furthermore, the mounting shaft has a hollow structure, and fixing screw holes are evenly arranged on the mounting shaft.

[0006] Furthermore, the horizontal center lines of the mounting shaft, carbon steel body, and self-lubricating wear-resistant components are on the same straight line.

[0007] Furthermore, the oil guide tubes are distributed at equal angles on the side shell, and the oil guide tubes are connected to the interior of the mounting cavity.

[0008] Furthermore, there are two side shells and four sealing covers, and the sealing covers, side shells and oil guide pipes are all made of aluminum alloy.

[0009] Furthermore, the top of the oblique tooth is provided with an arc portion, and the arc portion is provided with laser grid oil-retention patterns.

[0010] Furthermore, the oblique teeth are distributed at equal angles on the gear ring, and tooth grooves are provided between adjacent oblique teeth, and oil guide grooves are provided between the tooth grooves and the oil guide pipe.

[0011] The wear-resistant, high-lubricity oil pump gear provided by this utility model has the following advantages: By incorporating self-lubricating and wear-resistant components, solid lubricating oil paste is stored in the internal cavity of the side shell. When the gears operate on the lubricating oil pump, the frictional heat generated at the meshing point gradually softens the solid lubricating oil paste, which is then discharged through oil guides evenly distributed on the outer wall of the side shell. The discharged lubricating oil is precisely delivered to the meshing area of ​​the oblique teeth through the oil guide groove between the tooth groove and the oil guide. This achieves uniform directional oil supply, reduces direct metal-to-metal contact, and optimizes wear resistance through self-lubrication. Furthermore, the laser-etched oil storage pattern can store lubricating oil, forming a continuous oil film that can maintain effective lubrication even when the lubricating oil pump supply is insufficient or during start-up and shutdown, avoiding dry friction. Moreover, the diamond-like carbon coating on the outer wall of the oblique teeth directly bears the meshing friction, improving wear resistance. The epoxy acrylate microcapsule functional layer is set on the inner side of the diamond-like carbon coating. When long-term wear and thinning occur, the microcapsules rupture to release a repair agent to fill the wear pits, forming a secondary lubricating film and optimizing wear resistance. By incorporating oblique teeth, the oblique teeth on the gear ring are the core of transmission and wear resistance. The oblique teeth adopt an oblique structure, and the contact area gradually changes during meshing, increasing the overlap ratio and reducing impact load. The roundness of the top arc formed by the chamfer on the top surface of the oblique teeth can avoid rigid impact between the tooth tip and the root of the opposing tooth, reducing local wear. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the self-lubricating wear-resistant component of this utility model in an explosive state; Figure 3 This is a three-dimensional structural diagram of the carbon steel main body of this utility model; Figure 4 This is a three-dimensional structural diagram of a partial cross-section of the oblique tooth of this utility model. Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0013] The reference numerals in the figure are as follows: 1. Carbon steel body; 2. Self-lubricating wear-resistant component; 201. Sealing cover; 202. Solid lubricating oil paste; 203. Mounting cavity; 204. Oil guide tube; 205. Fixing bolt; 206. Side shell; 3. Gear ring; 4. Mounting shaft; 5. Fixing screw hole; 6. Angled teeth; 7. Diamond-like carbon coating; 8. Epoxy acrylate microcapsule functional layer; 9. Laser-etched oil storage pattern; 10. Oil guide groove; 11. Arc portion; 12. Gear groove. Detailed Implementation

[0014] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-5 The present invention provides a wear-resistant, high-lubricity oil pump gear, comprising a carbon steel body 1.

[0016] Reference Figures 1-4 The carbon steel body 1 has a mounting shaft 4 and a self-lubricating wear-resistant component 2 fixed on both sides. The self-lubricating wear-resistant component 2 includes a side shell 206 fixed between the mounting shaft 4 and the carbon steel body 1. The side shell 206 has a clamping cavity 203 inside, and a solid lubricating oil paste 202 is installed inside the clamping cavity 203. Oil guide pipes 204 are evenly arranged on the outer wall of the side shell 206, and sealing cover plates 201 are evenly installed on the side shell 206 by fixing bolts 205. The outer wall of the carbon steel body 1 is provided with a toothed ring 3, and oblique teeth 6 are evenly provided on the toothed ring 3. The outer wall of the oblique teeth 6 is provided with a diamond-like carbon coating 7, and the oblique teeth 6 on the inner side of the diamond-like carbon coating 7 is provided with an epoxy acrylate microcapsule functional layer 8. The oil guide tubes 204 are distributed at equal angles on the side shell 206, and the oil guide tubes 204 are connected to the interior of the mounting cavity 203; There are two side shells 206 and four sealing covers 201. The sealing covers 201, side shells 206 and oil guide pipes 204 are all made of aluminum alloy.

[0017] In use, solid lubricating oil paste 202 is stored in the clamping cavity 203 inside the side shell 206, and the sealing cover 201 seals the clamping cavity 203 with fixing bolts 205 to prevent paste leakage. When the gears run on the lubricating oil pump, the frictional heat generated at the meshing point causes the solid lubricating oil paste 202 to gradually soften and be discharged through the oil guide pipes 204 distributed at equal angles on the outer wall of the side shell 206. The discharged lubricating oil is precisely delivered to the meshing area of ​​the oblique teeth 6 through the oil guide groove 10 between the tooth groove 12 and the oil guide pipe 204, replenishing the lubricating medium, reducing direct metal contact, and achieving uniform directional oil supply. In addition, the grid texture of the laser grid oil storage pattern 9 can store lubricating oil and form a continuous oil film, which can maintain effective lubrication even when the lubricating oil pump supply is insufficient or during start-up and shutdown, avoiding dry friction.

[0018] During use, the diamond-like carbon coating 7 on the outer wall of the oblique tooth 6 directly bears the meshing friction, which improves the wear resistance. Meanwhile, the inner side of the diamond-like carbon coating 7 is provided with an epoxy acrylate microcapsule functional layer 8. When the diamond-like carbon coating 7 becomes thin due to long-term wear, the microcapsules rupture under meshing pressure, releasing a repair agent to fill the wear pits and form a secondary lubricating film, which can extend the service life of the gear.

[0019] Reference Figures 1-5 The mounting shaft 4 has a hollow structure, and fixing screw holes 5 are evenly arranged on the mounting shaft 4; the horizontal center lines of the mounting shaft 4, the carbon steel body 1 and the self-lubricating wear-resistant component 2 are on the same straight line; The top of the oblique tooth 6 is provided with an arc portion 11, and the arc portion 11 is provided with a laser grid oil-absorbing pattern 9; The oblique teeth 6 are distributed at equal angles on the gear ring 3, and a tooth groove 12 is provided between adjacent oblique teeth 6. An oil guide groove 10 is provided between the tooth groove 12 and the oil guide pipe 204.

[0020] In use, the oblique teeth 6 on the gear ring 3 are the core of transmission and wear resistance. The oblique teeth 6 adopt an oblique structure, and the contact area changes gradually during meshing, which increases the overlap and reduces impact load. The roundness of the top arc 11 formed by the chamfer on the top surface of the oblique teeth 6 can avoid rigid impact between the tooth tip and the root of the opposing tooth, reducing local wear.

[0021] In use, by making the mounting shaft 4 a hollow structure and using the fixing screw hole 5 on it, the user can easily assemble it with the oil pump using screws.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wear-resistant high-lubricity oil pump gear, comprising a carbon steel body (1); Its features are: The carbon steel body (1) is fixed with mounting shafts (4) and self-lubricating wear-resistant components (2) on both sides. The self-lubricating wear-resistant components (2) include a side shell (206) fixed between the mounting shaft (4) and the carbon steel body (1). The side shell (206) has a clamping cavity (203) inside, and a solid lubricating oil paste (202) is installed inside the clamping cavity (203). Oil guide pipes (204) are uniformly arranged on the outer wall of the side shell (206), and sealing cover plates (201) are uniformly installed on the side shell (206) by fixing bolts (205). The outer wall of the carbon steel body (1) is provided with a toothed ring (3), and oblique teeth (6) are uniformly provided on the toothed ring (3). The outer wall of the oblique teeth (6) is provided with a diamond-like carbon coating (7), and the oblique teeth (6) on the inner side of the diamond-like carbon coating (7) are provided with an epoxy acrylate microcapsule functional layer (8).

2. The wear-resistant, high-lubricity oil pump gear according to claim 1, characterized in that: The mounting shaft (4) has a hollow structure, and fixing screw holes (5) are evenly arranged on the mounting shaft (4).

3. The wear-resistant, high-lubricity oil pump gear according to claim 1, characterized in that: The horizontal center lines of the mounting shaft (4), the carbon steel body (1), and the self-lubricating wear-resistant component (2) are on the same straight line.

4. The wear-resistant, high-lubricity oil pump gear according to claim 1, characterized in that: The oil guide tubes (204) are distributed at equal angles on the side shell (206), and the oil guide tubes (204) are connected to the interior of the mounting cavity (203).

5. The wear-resistant, high-lubricity oil pump gear according to claim 1, characterized in that: Two side shells (206) are provided, and four sealing covers (201) are provided. The sealing covers (201), side shells (206) and oil guide pipes (204) are all made of aluminum alloy.

6. The wear-resistant, high-lubricity oil pump gear according to claim 1, characterized in that: The top of the oblique tooth (6) is provided with an arc portion (11), and the arc portion (11) is provided with a laser grid oil storage pattern (9).

7. The wear-resistant, high-lubricity oil pump gear according to claim 1, characterized in that: The oblique teeth (6) are distributed at equal angles on the tooth ring (3), and a tooth groove (12) is provided between adjacent oblique teeth (6), and an oil guide groove (10) is provided between the tooth groove (12) and the oil guide pipe (204).

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