Multi-layer protection anti-abrasion gear structure

Abstract

The utility model discloses a multi-layer protection anti-abrasion gear structure which comprises a gear body, a plurality of gear teeth are fixedly arranged on the outer surface of the gear body, a plurality of flow dividing holes are formed between every two adjacent gear teeth, the flow dividing holes are formed in the gear body, one ends of the flow dividing holes are communicated with one ends of through holes, and the other ends of the through holes are communicated with heat dissipation holes. The heat dissipation holes are formed in the inner wheel body, the inner wheel body is fixedly connected into the wheel body in a sleeved mode, a protection part is connected into the inner wheel body in a sleeved mode, and one end of the protection part is fixedly connected with a limiting ring through a fixing bolt. According to the gear, the wear-resisting performance of the gear during working is improved through the wear-resisting layers coated on the outer surfaces of the gear teeth, meanwhile, the heat dissipation performance of the gear during working is improved through the arrangement of the heat dissipation holes, lubricating oil is guided through the through holes formed in the heat dissipation holes during working of the gear, the lubricating oil enters the flow dividing holes under the centrifugal force effect during rotation of the gear, and the service life of the gear is prolonged. And the lubricating oil is fully distributed among the gear teeth, so that the lubricating effect of the meshing position of the gear teeth is improved, and the abrasion of the gear teeth is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a multi-layer protective wear-resistant gear structure. Background Technology

[0002] A gear is a mechanical component that transmits motion and power through continuous meshing of gears on its rim. Gears can be structurally divided into teeth, tooth spacers, end faces, normal faces, addendum circles, dedendum circles, base circles, and pitch circles. Commonly used steels for manufacturing gears include tempered steel, quenched steel, carburized and quenched steel, and nitrided steel. Gears are an important transmission mechanism, characterized by a wide power transmission range, high transmission efficiency, and the ability to transmit motion and power between any two shafts.

[0003] In related technologies, Chinese Patent No. CN214092939U discloses a high-strength wear-resistant precision gear, including a gear body. The outer side of the gear body is provided with equally spaced gear teeth, and a tooth groove is formed between adjacent gear teeth. A chrome-plated wear-resistant layer is provided on the outer side of the gear teeth. A shaft hole is opened inside the gear body. Oil grooves are opened at equal intervals on both the front and back sides of the gear body. Through grooves are opened inside both the chrome-plated wear-resistant layer and the gear teeth.

[0004] The chrome-plated wear-resistant layer of the gear and the interior of the teeth both have through grooves. Although lubricating oil is continuously poured into the oil channel, and the lubricating oil in the through groove is constantly thrown out by centrifugal force, the lubricating oil poured into the oil channel is continuously poured into the through groove by centrifugal force, thus forming a continuous circulation effect of lubricating oil. This makes the wear resistance and noise reduction effect of the device better. However, the gear transmission transmits power through the meshing of the teeth. The setting of through grooves on the teeth will reduce the strength of the teeth and reduce the service life of the gear. Therefore, we propose a multi-layer protective wear-resistant gear structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-layer protective and wear-resistant gear structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer protective wear-resistant gear structure, comprising a wheel body, a plurality of gear teeth fixedly provided on the outer surface of the wheel body, a plurality of diversion holes provided between two adjacent gear teeth, the diversion holes being opened on the wheel body and one end of the diversion holes connecting to one end of a through hole, the other end of the through hole connecting to a heat dissipation hole, the heat dissipation hole being opened on an inner wheel body, the inner wheel body being fixedly sleeved inside the wheel body, a protective part being sleeved inside the inner wheel body, and one end of the protective part being fixedly connected to a limit ring by a fixing bolt.

[0007] Preferably, the heat dissipation holes are evenly distributed around the circumference.

[0008] Preferably, the diversion hole and the through hole are connected to form a trident structure.

[0009] Preferably, the vertical cross-section of the protective part is a T-shaped structure, and the protective part is fitted with an inner wheel body.

[0010] Preferably, the flow divider holes are evenly distributed between two adjacent gear teeth.

[0011] Preferably, the outer surface of the gear teeth is coated with a wear-resistant layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the wear-resistant layer coated on the outer surface of the gear teeth improves the wear resistance of the gear during operation; at the same time, the setting of heat dissipation holes improves the heat dissipation performance of the gear during operation; and when the gear is working, the through holes opened in the heat dissipation holes guide the lubricating oil. Under the action of centrifugal force when the gear rotates, the lubricating oil enters the distribution hole and is finally discharged from the distribution hole, thereby making the space between the gear teeth full of lubricating oil, improving the lubrication effect at the gear meshing position, and reducing the wear of the gear teeth. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0015] In the diagram: 1. Wheel body; 2. Gear teeth; 3. Diverter hole; 4. Heat dissipation hole; 5. Through hole; 6. Limiting ring; 7. Fixing bolt; 8. Protective part; 9. Inner wheel body. Detailed Implementation

[0016] 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.

[0017] Example 1

[0018] Reference Figure 1 , 2This is the first embodiment of the present invention. This embodiment provides a multi-layer protective wear-resistant gear structure, including a wheel body 1. A plurality of gear teeth 2 are fixedly provided on the outer surface of the wheel body 1. A plurality of diversion holes 3 are provided between two adjacent gear teeth 2. The diversion holes 3 are opened on the wheel body 1 and one end of the diversion holes 3 is connected to one end of the through hole 5. The other end of the through hole 5 is connected to a heat dissipation hole 4. The heat dissipation hole 4 is opened on the inner wheel body 9. The inner wheel body 9 is fixedly sleeved inside the wheel body 1. A protective part 8 is sleeved inside the inner wheel body 9. One end of the protective part 8 is fixedly connected to a limit ring 6 by a fixing bolt 7.

[0019] The cylindrical protective part 8 is snapped into the inner gear body 9. The protective part 8 is kept in position by an anti-detachment ring fixed at one end to prevent detachment. Then, an upper limit ring 6 is installed at the other end of the protective part 8 and fixed by a fixing bolt 7. The thickness of the inner gear body 9 is less than that of the gear body 1. Lubricant is injected into the annular groove formed by the inner gear body 9. When the gear rotates, the setting of the heat dissipation hole 4 improves the heat dissipation performance of the gear. When the gear is working, the through hole 5 opened in the heat dissipation hole 4 guides the lubricating oil. Under the action of centrifugal force when the gear rotates, the lubricating oil enters the diversion hole 3 and finally exits from the diversion hole 3, thereby filling the space between the gear teeth 2 with lubricating oil, improving the lubrication effect at the meshing position of the gear teeth 2 and reducing the wear of the gear teeth. The outer surface of the gear teeth 2 is coated with a wear-resistant layer using ultrasonic flame spraying technology. The wear-resistant layer is a tungsten carbide coating, which has extremely strong wear resistance and strength, improving the wear resistance of the gear during operation.

[0020] Example 2

[0021] Reference Figure 1-2 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. Specifically, the heat dissipation holes 4 are evenly distributed around the circumference, which makes the distribution of the heat dissipation holes 4 more uniform.

[0022] Specifically, the flow divider hole 3 and the through hole 5 are connected to form a trident structure. When the gear is working, the through hole 5 opened in the heat dissipation hole 4 guides the lubricating oil. Under the centrifugal force when the gear rotates, the lubricating oil can enter the flow divider hole 3 and finally be discharged from the flow divider hole 3, thereby filling the space between the gear teeth 2 with lubricating oil, improving the lubrication effect at the meshing position of the gear teeth 2 and reducing the wear of the gear teeth.

[0023] Specifically, the vertical section of the protective part 8 is a T-shaped structure. The protective part 8 is snapped into the inner wheel body 9. The protective part 8 protects the mounting holes inside the inner wheel body 9. Furthermore, the installation method of the fixing bolts 7 facilitates the disassembly and replacement of the protective part 8, thus extending the service life of the gear.

[0024] Specifically, the diversion holes 3 are evenly distributed between two adjacent gear teeth 2. This even distribution improves the uniformity of the lubricating oil discharged from the diversion holes 3.

[0025] Specifically, the outer surface of gear tooth 2 is coated with a wear-resistant layer. The wear-resistant layer is coated with a tungsten carbide coating using ultrasonic flame spraying technology, which has extremely strong wear resistance and strength, thus improving the wear resistance of the gear during operation.

[0026] Example 3

[0027] Reference Figure 1-2 This is the third embodiment of the present invention. Based on the above two embodiments, in use, the cylindrical protective part 8 is snapped into the inner wheel body 9. The protective part 8 is kept in position by an anti-detachment ring fixed at one end to prevent detachment. Then, an upper limit ring 6 is installed at the other end of the protective part 8 and fixed by a fixing bolt 7. The thickness of the inner wheel body 9 is less than the thickness of the wheel body 1. Lubricating oil is injected into the annular groove formed by the inner wheel body 9. When the gear rotates, the setting of the heat dissipation hole 4 improves the heat dissipation performance of the gear during operation. In addition, when the gear is working, the through hole 5 opened in the heat dissipation hole 4 guides the lubricating oil. Under the action of centrifugal force when the gear rotates, the lubricating oil enters the diversion hole 3 and finally exits from the diversion hole 3, thereby filling the space between the gear teeth 2 with lubricating oil, improving the lubrication effect at the meshing position of the gear teeth 2, and reducing the wear of the gear teeth. The outer surface of the gear teeth 2 is coated with a wear-resistant layer using ultrasonic flame spraying technology. The wear-resistant layer is a tungsten carbide coating, which has extremely strong wear resistance and strength, improving the wear resistance of the gear during operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer protective wear-resistant gear structure, comprising a gear body (1), wherein a plurality of gear teeth (2) are fixedly provided on the outer surface of the gear body (1), characterized in that: Several diversion holes (3) are provided between two adjacent gear teeth (2). The diversion holes (3) are opened on the wheel body (1) and one end of the diversion hole (3) is connected to one end of the through hole (5). The other end of the through hole (5) is connected to the heat dissipation hole (4). The heat dissipation hole (4) is opened on the inner wheel body (9). The inner wheel body (9) is fixedly sleeved inside the wheel body (1). A protective part (8) is sleeved inside the inner wheel body (9). One end of the protective part (8) is fixedly connected to a limit ring (6) by a fixing bolt (7).

2. The multi-layer protective wear-resistant gear structure according to claim 1, characterized in that: The heat dissipation holes (4) are evenly distributed around the circumference.

3. The multi-layer protective wear-resistant gear structure according to claim 1, characterized in that: The diversion hole (3) and the through hole (5) are connected to form a trident structure.

4. The multi-layer protective wear-resistant gear structure according to claim 1, characterized in that: The vertical section of the protective part (8) is a T-shaped structure, and the protective part (8) is engaged with the inner wheel body (9).

5. The multi-layer protective wear-resistant gear structure according to claim 1, characterized in that: The flow divider holes (3) are evenly distributed between two adjacent gear teeth (2).

6. The multi-layer protective wear-resistant gear structure according to claim 1, characterized in that: The outer surface of the gear teeth (2) is coated with a wear-resistant layer.

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