High-speed transmission gear with good heat dissipation effect

Abstract

The utility model discloses a high-speed transmission gear with a good heat dissipation effect, and relates to the technical field of gears. The high-speed transmission gear with the good heat dissipation effect comprises a transmission gear body and a heat dissipation mechanism, the heat dissipation mechanism comprises a plurality of transmission teeth, heat dissipation openings, ventilation openings, a flow limiting plate, through holes and heat dissipation holes, and the transmission teeth are fixedly connected to the outer surface of the transmission gear body at equal intervals in a circumferential array mode; the number of the heat dissipation openings is two, the two heat dissipation openings are symmetrically formed in the transmission gear body, the number of the ventilation openings is two, the two ventilation openings are symmetrically formed in the transmission gear body, the heat dissipation openings and the ventilation openings are both in an arc shape, and the multiple flow limiting plates are fixedly connected to the interiors of the two ventilation openings at equal intervals in a circumferential array mode. The arc-shaped heat dissipation openings and the ventilation openings are matched with the structure of the flow limiting plates, the through holes and the heat dissipation holes, efficient convection heat dissipation channels are formed, the heat dissipation efficiency is improved, and the working temperature of the gear is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to high-speed transmission gears with good heat dissipation. Background Technology

[0002] A gear is a mechanical component with teeth on its rim that can continuously mesh to transmit motion and power. Gears are toothed mechanical parts that can mesh with each other. In diesel engines, gears are indispensable parts. Some diesel engine gears have the following drawbacks during use: the gear teeth are prone to wear. Due to the large load on diesel engine gears, fatigue cracks may occur on the surface of the gears due to hard contact under the action of constantly changing external forces during operation. In cases of severe wear, it will generate a lot of noise and may cause the gear teeth to break, affecting the operation of the diesel engine.

[0003] CN219866146U discloses a special gear for diesel engines. The gear body is used to mesh with adjacent gears to achieve transmission. The protective module is used to protect the teeth on the gear body to prevent wear on the teeth from affecting the transmission of the gear body. The protective module includes a tooth sleeve fitted onto the teeth of the gear body, annular elastic bands symmetrically fixed on both sides of the tooth sleeve, and protrusions fixed in a rectangular array on the outer surface of the tooth sleeve. The tooth sleeves are arranged in an annular array, and adjacent tooth sleeves are integrally connected. They are used to fit onto the teeth of the gear body to protect the teeth of the gear body and transfer the friction between the diesel engine gears to the friction between the tooth sleeves. This device increases service life by bearing the contact wear generated during gear meshing through the tooth sleeves and has high practicality. However, the disadvantage is that the tooth sleeve makes the gear prone to high temperature. The gear generates a lot of heat when it runs at high speed. Existing heat dissipation structures often have problems such as low heat dissipation efficiency, complex structure, and difficult maintenance. The heat is difficult to dissipate, so the tooth sleeve and gear are in a high-temperature state for a long time, affecting the use. Therefore, a high-speed transmission gear with good heat dissipation is needed. Utility Model Content

[0004] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a high-speed transmission gear with good heat dissipation effect. This can solve the problem that existing heat dissipation structures often have low heat dissipation efficiency, complex structure, difficult maintenance, and difficulty in dissipating heat, thus causing the gear sleeve and gear to be in a high-temperature state for a long time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed transmission gear with good heat dissipation, comprising a transmission gear body and a heat dissipation mechanism. The heat dissipation mechanism includes transmission teeth, heat dissipation openings, vents, flow restrictors, through holes, and heat dissipation holes. Multiple transmission teeth are equidistantly fixed to the outer surface of the transmission gear body in a circumferential array. Two heat dissipation openings are symmetrically located inside the transmission gear body. Two vents are symmetrically located inside the transmission gear body. The heat dissipation openings are located on the inner ring of the transmission gear body, and the vents are located on the outer ring of the transmission gear body. Both the heat dissipation openings and vents are arc-shaped. Multiple flow restrictors are equidistantly fixed to the interior of the two vents in a circumferential array. Each flow restrictor extends to the exterior of the vent. Each flow restrictor has an arc-shaped inclined surface. Multiple through holes are equidistantly located in a circumferential array inside the transmission gear body. The number of through holes is the same as the number of transmission teeth. The number of heat dissipation holes is the same as the number of transmission teeth and is respectively located inside the corresponding transmission teeth. Each heat dissipation hole is connected to the vent through the through hole.

[0006] Preferably, a toothed sleeve is fitted on the outer surface of the transmission gear body, the toothed sleeve is fitted on the outer surface of the transmission gear, and the outer surface of the toothed sleeve has multiple protrusions.

[0007] Preferably, the outer surface of the toothed sleeve has a through hole A with the same shape as the heat dissipation hole, and the through hole A is connected to the heat dissipation hole.

[0008] Preferably, the gear sleeve has a wear-resistant layer fixedly connected inside, and the wear-resistant layer is made of nitrile rubber material, which can effectively withstand the friction during gear meshing.

[0009] Preferably, a heat-conducting layer is fixedly connected to the surface of the wear-resistant layer. Specifically, the heat-conducting layer is a high thermal conductivity copper mesh with a corrugated design, which maintains flexibility while increasing the heat dissipation area.

[0010] Preferably, an adsorption layer is fixedly connected to the surface of the heat-conducting layer. Through holes B are opened on the surfaces of the wear-resistant layer, the heat-conducting layer and the adsorption layer. The shape of the adsorption layer is the same as that of the heat-conducting layer. The adsorption layer is made of modified silicone rubber composite material, and its surface is provided with hemispherical grooves for adsorbing the surface of the transmission gear.

[0011] Preferably, a central hole is formed on the surface of the transmission gear body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The high-speed transmission gear with good heat dissipation effect, with its arc-shaped heat dissipation opening and ventilation port combined with the flow limiting plate, through hole and heat dissipation hole structure, forms an efficient convection heat dissipation channel, improves heat dissipation efficiency, reduces gear working temperature, and ensures stable gear performance under high speed operation. It solves the problem that existing heat dissipation structures often have low heat dissipation efficiency, complex structure, difficult maintenance, and difficulty in heat dissipation, thus causing the gear sleeve and gear to be in a high temperature state for a long time. In the design of the gear sleeve, the wear-resistant layer is made of nitrile rubber material, which effectively improves the wear resistance of the gear during meshing and extends its service life. The corrugated high thermal conductivity copper mesh of the heat-conducting layer greatly increases the heat dissipation area while maintaining flexibility and improving the heat conduction effect. The hemispherical groove design of the adsorption layer enhances the fit with the gear surface. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the main body of this utility model;

[0015] Figure 2 This is a schematic diagram of the adsorption layer of this utility model;

[0016] Figure 3 This is a schematic diagram of the toothed sleeve of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Schematic diagram at point A in the middle.

[0018] Reference numerals: 1. Transmission gear body; 2. Transmission gear; 3. Heat dissipation opening; 4. Ventilation port; 5. Flow limiting plate; 6. Through hole; 7. Heat dissipation hole; 8. Gear sleeve; 9. Protrusion; 10. Through hole A; 11. Wear-resistant layer; 12. Thermally conductive layer; 13. Adsorption layer; 14. Through hole B; 15. Center hole. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model. However, they should not be construed as limiting the scope of protection of this utility model. In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a high-speed transmission gear with good heat dissipation, including a transmission gear body 1 and a heat dissipation mechanism. The heat dissipation mechanism includes transmission teeth 2, heat dissipation openings 3, vents 4, flow restrictors 5, through holes 6, and heat dissipation holes 7. Multiple transmission teeth 2 are equidistantly fixed to the outer surface of the transmission gear body 1 in a circumferential array. Two heat dissipation openings 3 are symmetrically located inside the transmission gear body 1. Two vents 4 are symmetrically located inside the transmission gear body 1. The heat dissipation openings 3 are located on the inner ring of the transmission gear body 1, and the vents 4 are located on the inner ring of the transmission gear body 1. The outer ring of the gear body 1, the heat dissipation opening 3 and the ventilation opening 4 are all arc-shaped. There are multiple flow limiting plates 5, which are equidistantly fixed inside the two ventilation openings 4 in a circumferential array. Each flow limiting plate 5 extends to the outside of the ventilation opening 4. Each flow limiting plate 5 has an arc-shaped inclined surface. There are multiple through holes 6, which are equidistantly opened inside the transmission gear body 1 in a circumferential array. The number of through holes 6 is the same as that of the transmission teeth 2. The number of heat dissipation holes 7 is the same as that of the transmission teeth 2 and they are opened inside the corresponding transmission teeth 2. Each heat dissipation hole 7 is connected to the ventilation opening 4 through the through hole 6.

[0022] Furthermore, a gear sleeve 8 is fitted onto the outer surface of the transmission gear body 1, and the gear sleeve 8 is fitted onto the outer surface of the transmission gear 2. The outer surface of the gear sleeve 8 has multiple protrusions 9 and a through hole A10 with the same shape as the heat dissipation hole 7. The through hole A10 is connected to the heat dissipation hole 7. A wear-resistant layer 11 is fixedly connected inside the gear sleeve 8. The wear-resistant layer 11 is made of nitrile rubber material, which can effectively withstand the friction during gear meshing. A heat-conducting layer 12 is fixedly connected to the surface of the wear-resistant layer 11. The heat-conducting layer 12 is made of high thermal conductivity copper mesh. The copper mesh adopts a corrugated design, which maintains flexibility and increases the heat dissipation area. An adsorption layer 13 is fixedly connected to the surface of the heat-conducting layer 12. Through holes B14 are opened on the surfaces of the wear-resistant layer 11, the heat-conducting layer 12 and the adsorption layer 13. The shape of the adsorption layer 13 is the same as that of the heat-conducting layer 12. The adsorption layer 13 is made of modified silicone rubber composite material. Hemispherical grooves for adsorbing the surface of the transmission gear 2 are opened on its surface. A central hole 15 is opened on the surface of the transmission gear body 1.

[0023] Furthermore, during high-speed operation, the transmission gear body 1 transmits power through the transmission teeth 2 distributed in a circumferential array. When the gear rotates, air flows in the arc-shaped heat dissipation opening 3 and ventilation port 4, passing through multiple flow-limiting plates 5. The arc-shaped inclined surface on the flow-limiting plate 5 guides the airflow, allowing the air to enter the heat dissipation hole 7 inside the transmission tooth 2 more efficiently through the through hole 6, forming air convection and quickly carrying away the heat generated by the gear operation. The protrusion 9 on the outer surface of the gear sleeve 8 is provided with micropores that squeeze out lubricating oil to lubricate the gear sleeve during rotation, reducing friction. Heat is transferred to the inside of the gear sleeve 8 through the through hole A10 connected to the heat dissipation hole 7. The corrugated high thermal conductivity copper mesh of the heat-conducting layer 12 quickly conducts and diffuses the heat. The hemispherical groove of the adsorption layer 13 increases the contact area with the gear surface, making the gear sleeve 8 more stable to install.

[0024] Furthermore, the arc-shaped heat dissipation openings and vents, combined with the flow-limiting plate, through holes, and heat dissipation holes, form a highly efficient convection heat dissipation channel, improving heat dissipation efficiency, reducing gear operating temperature, and ensuring stable gear performance under high-speed operation. This solves the problem that existing heat dissipation structures often have low heat dissipation efficiency, complex structure, difficult maintenance, and difficulty in dissipating heat, thus causing the gear sleeve and gear to be in a high-temperature state for a long time. In the design of the gear sleeve, the wear-resistant layer uses nitrile rubber material, which effectively improves the wear resistance of the gear during meshing and extends its service life. The corrugated high thermal conductivity copper mesh of the heat-conducting layer greatly increases the heat dissipation area while maintaining flexibility, improving the heat conduction effect. The hemispherical groove design of the adsorption layer enhances the fit with the gear surface.

[0025] Structural Description: Transmission Gear Body 1: As the core load-bearing structure of the gear system, it is made of high-strength alloy material and is precision machined to ensure transmission accuracy and dynamic balance performance, providing a mounting base for the heat dissipation mechanism;

[0026] Transmission Gear 2: The power transmission unit with a special tooth profile design reduces friction noise by optimizing the meshing contact surface, and its internal cavity structure integrates heat dissipation channels to improve heat conduction efficiency;

[0027] Heat dissipation opening 3: The arc-shaped airflow channel uses centrifugal force to guide the directional flow of air, forming a cooling air duct that runs through the gear body to accelerate heat exchange;

[0028] Ventilation 4: The symmetrically distributed air circulation chambers generate a negative pressure effect through fluid dynamics design, enhancing the circulation speed of the heat dissipation medium inside the gear;

[0029] Flow limiter 5: The airflow guide vane assembly changes the airflow trajectory by arranging at a specific angle, which increases the contact time between air and heat dissipation surface while limiting turbulence;

[0030] Through-hole 6: The heat conduction network formed by precision drilling connects the internal and external heat dissipation channels, enabling rapid heat transfer from the core area to the surface;

[0031] Heat dissipation hole 7: Embedded micro heat dissipation pipes run through the inside of the transmission gear, reducing the working temperature of the gear surface through forced convection;

[0032] Tooth Sleeve 8: The modular protective shell adopts a composite laminate structure, which optimizes the radial heat conduction path while protecting the tooth surface;

[0033] Protrusion 9: The surface microstructure design has both oil storage and flow guiding functions, reducing the generation of frictional heat through dynamic lubrication;

[0034] Through-hole A10: Aligned heat dissipation interface ensures seamless connection of the heat channel between the gear sleeve and the gear body, maintaining the continuity of the overall heat dissipation system;

[0035] Wear-resistant layer 11: The elastic buffer material layer balances wear resistance and vibration absorption capacity through molecular structure design, extending the service life of gears;

[0036] Thermal conductive layer 12: The corrugated metal mesh structure utilizes high thermal conductivity and expanded surface area to achieve rapid and uniform heat distribution in three dimensions;

[0037] Adsorption layer 13: The surface microstructure composite material enhances the interfacial adhesion through intermolecular forces, while also assisting in the lateral diffusion of heat;

[0038] Through-hole B14: Matrix-type ventilation channels promote the penetration of cooling medium through the multi-layer structure, forming a three-dimensional cross heat dissipation airflow network;

[0039] Center hole 15: The precision-machined center mounting hole ensures a high-precision fit with the drive shaft and reduces additional heat sources caused by assembly deviations.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high speed transmission gear with good heat dissipation effect, characterized in that, include: Transmission gear body (1); The heat dissipation mechanism includes transmission gears (2), heat dissipation openings (3), vents (4), flow restrictors (5), through holes (6), and heat dissipation holes (7). Multiple transmission gears (2) are equidistantly fixed to the outer surface of the transmission gear body (1) in a circumferential array. Two heat dissipation openings (3) are symmetrically located inside the transmission gear body (1), and two vents (4) are symmetrically located inside the transmission gear body (1). The heat dissipation openings (3) are located on the inner ring of the transmission gear body (1), and the vents (4) are located on the outer ring of the transmission gear body (1). The heat dissipation openings (3) and the vents (4) are connected in a circular array. The shape of the opening (4) is arc-shaped. There are multiple flow-limiting plates (5) that are equidistantly fixed inside the two ventilation openings (4) in a circular array. Each flow-limiting plate (5) extends to the outside of the ventilation opening (4). Each flow-limiting plate (5) has an arc-shaped inclined surface. There are multiple through holes (6) that are equidistantly opened inside the transmission gear body (1) in a circular array. The number of through holes (6) is the same as the number of transmission teeth (2). The number of heat dissipation holes (7) is the same as the number of transmission teeth (2) and they are opened inside the corresponding transmission teeth (2). Each heat dissipation hole (7) is connected to the ventilation opening (4) through the through hole (6).

2. The high speed transmission gear with good heat dissipation effect according to claim 1, characterized in that: The outer surface of the transmission gear body (1) is fitted with a tooth sleeve (8), which is fitted on the outer surface of the transmission gear (2). The outer surface of the tooth sleeve (8) has multiple protrusions (9).

3. The high speed transmission gear with good heat dissipation effect according to claim 2, characterized in that: The outer surface of the toothed sleeve (8) is provided with a through hole A (10) that is the same shape as the heat dissipation hole (7), and the through hole A (10) is connected to the heat dissipation hole (7).

4. The high-speed transmission gear with good heat dissipation effect according to claim 2, characterized in that: The gear sleeve (8) has a wear-resistant layer (11) fixedly connected inside. The wear-resistant layer (11) is made of nitrile rubber material, which can effectively withstand the friction during gear meshing.

5. The high speed transmission gear with good heat dissipation effect according to claim 4, characterized in that: A heat-conducting layer (12) is fixedly connected to the surface of the wear-resistant layer (11). The heat-conducting layer (12) is specifically made of a high thermal conductivity copper mesh. The copper mesh adopts a corrugated design, which maintains flexibility and increases the heat dissipation area.

6. The high speed transmission gear with good heat dissipation effect according to claim 5, characterized in that: An adsorption layer (13) is fixedly connected to the surface of the heat-conducting layer (12). Through holes B (14) are opened on the surfaces of the wear-resistant layer (11), the heat-conducting layer (12) and the adsorption layer (13). The shape of the adsorption layer (13) is the same as that of the heat-conducting layer (12). The adsorption layer (13) is made of modified silicone rubber composite material, and its surface is provided with hemispherical grooves for adsorbing the surface of the transmission gear (2).

7. The high-speed transmission gear with good heat dissipation effect according to claim 1, characterized in that: The transmission gear body (1) has a central hole (15) on its surface.

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