A sprocket with high heat dissipation performance

Abstract

The utility model provides a kind of sprocket with high heat dissipation performance, including first gear, second gear and the chain responsible for transmission between first gear and second gear, the sprocket with high heat dissipation performance further include heat conducting band and secondary pulley, vertical extension fin is provided on each tooth of the first gear, heat conducting band is wound on fin and secondary pulley, heat conducting band is responsible for transmission between fin and secondary pulley.Further, the secondary pulley is arranged on the second gear.Further, the fin is L-shaped fin or fan impeller-shaped fin.Further, the fin is fixed on the first gear by bolt.The utility model provides a kind of sprocket with high heat dissipation performance, on the one hand, play heat dissipation effect, on the other hand, thermal stress is transferred to fin, not only can better gear heat dissipation, can also reduce the thermal stress borne by gear, prolong the service life of gear.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a sprocket with high heat dissipation performance. Background Technology

[0002] A sprocket is a component that transmits power between gears by meshing a chain with them. Sprockets are common mechanical parts widely used in production and daily life. In many applications, such as tractors or motorcycles, the gears and chain in a sprocket assembly experience intense collisions and friction, generating a significant amount of heat. If this heat is not dissipated in time, it will affect the sprocket's lifespan. Therefore, existing technical literature proposes various solutions for sprocket heat dissipation, such as air cooling or water cooling of the gears, attempting to lower their temperature.

[0003] The original intention of these technical solutions was to cool the sprocket. However, directly cooling the gear with air or water is equivalent to applying the temperature difference directly to the gear. The gear directly bears the temperature difference, and therefore, the gear has to directly bear thermal stress and deformation, which affects the service life of the gear.

[0004] This invention aims to provide a sprocket with high heat dissipation performance, which can not only better dissipate heat from the gears, but also reduce the thermal stress on the gears and extend their service life. Utility Model Content

[0005] This invention aims to provide a sprocket with high heat dissipation performance, which can not only better dissipate heat from the gears, but also reduce the thermal stress on the gears and extend their service life.

[0006] This utility model provides a sprocket with high heat dissipation performance, including a first gear, a second gear, and a chain responsible for transmission between the first gear and the second gear. The sprocket with high heat dissipation performance also includes a heat conduction tape and a secondary pulley. A heat dissipation fin is provided on each tooth of the first gear. The heat conduction tape is wrapped around the heat dissipation fin and the secondary pulley. The heat conduction tape is responsible for the transmission between the heat dissipation fin and the secondary pulley.

[0007] Furthermore, the secondary pulley is disposed on the second gear.

[0008] Furthermore, the conductive tape is a metal strip.

[0009] Furthermore, the heat sink is an L-shaped heat sink or a fan impeller-shaped heat sink.

[0010] Furthermore, the heat sink is fixed to the first gear by bolts.

[0011] Furthermore, an air-cooled module or a water-cooled module is provided near the heat conductor or the secondary pulley.

[0012] Furthermore, a dripping module is installed near the conductive heat line.

[0013] Furthermore, recesses or holes are provided on the conductive tape.

[0014] This invention provides a sprocket with high heat dissipation performance. On the one hand, it has a heat dissipation effect, and on the other hand, it transfers thermal stress to the heat sink. This not only dissipates heat from the gears better, but also reduces the thermal stress on the gears and extends their service life. Attached Figure Description

[0015] Figure 1 The diagram shown is a schematic diagram of a sprocket with high heat dissipation performance according to an embodiment of the present invention.

[0016] Figure 2 As shown Figure 1 A side view of the first gear in the illustrated embodiment.

[0017] Figure 3 The diagram shown is a structural schematic of the first gear in another embodiment of this utility model.

[0018] Figure label:

[0019] 1: First gear; 11: Tooth; 12: Heat sink; 4: Secondary pulley; 5: Heat conduction tape. Detailed Implementation

[0020] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0021] Figure 1 The diagram shown is a schematic diagram of a sprocket with high heat dissipation performance according to an embodiment of the present invention. Figure 2 As shown Figure 1 A side view of the first gear in the illustrated embodiment.

[0022] This embodiment of the invention attempts to provide a sprocket with high heat dissipation performance. Like a conventional sprocket, the sprocket in this embodiment also includes a first gear, a second gear, and a chain responsible for transmission between the first and second gears. These structures are common to conventional sprockets and therefore will not be described further in the specification and drawings. The specification and drawings mainly describe the parts specific to this embodiment.

[0023] like Figure 1 and Figure 2 As shown, each tooth 11 of the first gear 1 is provided with a vertically extending heat sink 12, and the heat conduction cable 5 is wound around the heat sink 12 and the secondary pulley 4. The heat conduction cable 5 is responsible for the transmission between the heat sink 12 and the secondary pulley 4.

[0024] The heat sink 12 has two functions: one is to carry the heat conduction tape 5, and the other is to increase the heat dissipation area of ​​the first gear 1. The heat sink 12 extends vertically from each tooth 11. The heat generated by the friction and collision of each tooth 11 can be conducted to the heat sink 12, and the heat sink 12 increases the heat dissipation surface area of ​​the first gear 1, thereby facilitating the heat dissipation of the first gear 1. Moreover, when the first gear 1 rotates, the heat sink 12 can also generate some airflow, which is beneficial to the heat dissipation of the first gear 1.

[0025] exist Figure 1 and Figure 2 In this embodiment, the heat sink 12 is an L-shaped heat sink. In another embodiment of this invention, to better generate airflow on the heat sink 12 when the first gear 1 rotates, such as... Figure 3 As shown, the heat sink 12 can be designed as a fan impeller-shaped heat sink. The heat sink 12 is designed in a spiral shape similar to a fan impeller, so that the heat sink 12 can generate airflow better when the first gear 1 rotates, which is beneficial to heat dissipation.

[0026] On the other hand, the heat sink 12 can support the heat conduction tape 5. The heat conduction tape 5 can contact the heat sink 12 and exchange heat, and the heat sink 12 also has a large heat dissipation surface area. The heat generated by the first gear 5 is conducted to the heat sink 12, which in turn conducts heat to the heat conduction tape 5, which ultimately dissipates the heat into the air. The heat conduction tape 5 is made of a material with high thermal conductivity; for example, the heat conduction tape 5 can be a metal strip.

[0027] In the embodiments of this utility model, such as Figure 1 As shown, the heat sink 12 on the first gear 1 forms one pulley, and the secondary pulley 4 forms another pulley. The heat transfer cable 5 is responsible for transmission between the two pulleys. As mentioned earlier, the sprocket includes a first gear, a second gear, and a chain responsible for transmission between the first and second gears. Therefore, the secondary pulley 4 can also be coupled with the second gear. For example, the secondary pulley 4 can be mounted on the second gear, so that the secondary pulley 4 and the second gear are coupled together. For example, a protrusion is provided on the second gear to form the secondary pulley 4, and the outer circumference of the secondary pulley 4 and the outer circumference of the second gear are concentric circles.

[0028] To further enhance heat dissipation, an air-cooling module or a water-cooling module can be installed near the heat-conducting tape 5 or the secondary pulley 4, allowing the heat-conducting tape 5 to exchange heat with the airflow or water flow, thus rapidly cooling the heat-conducting tape 5. The cooled heat-conducting tape 5 then exchanges heat with the heat sink 12, thereby cooling the first gear 1. By installing an air-cooling module or a water-cooling module on the heat-conducting tape 5 or the secondary pulley 4, it is possible to avoid adding an air-cooling module or water-cooling module near the first gear 1. Since the first gear 1, as the driving gear, often has limited space nearby, avoiding the addition of an air-cooling module or water-cooling module near the first gear 1 avoids occupying that space and also facilitates heat dissipation for the first gear 1.

[0029] Furthermore, since the first gear 1 primarily exchanges heat with the cooling heating tape 5 through the heat sink 12, the alternating temperature changes are mainly borne by the heat sink 12 and the heating tape 5. Two temperatures exist on the heat sink 12: one from the heat of the first gear 1 and the other from the coolness of the heating tape 5. Therefore, compared to the prior art where heat is directly dissipated from the first gear 1, resulting in the first gear 1 bearing the thermal stress, in this embodiment, the temperature difference mainly exists on the heat sink 12, thus the heat stress is primarily borne by the heat sink 12, thereby reducing the deformation of the first gear 1 and extending its service life.

[0030] Furthermore, the heat sink 12 can be fixed to the first gear 1 with bolts, making the heat sink 12 detachable. Since the thermal stress is mainly borne by the heat sink 12, if a heat sink 12 is deformed or damaged, it can be replaced by unscrewing the bolts without replacing the entire first gear 1.

[0031] Furthermore, a dripping module can be installed near the heat-conducting tape 5 to apply water droplets to it. Driven by the first gear 1, the heat-conducting tape 5 rotates rapidly. This rapid rotation quickly evaporates or removes the water droplets, thus cooling the tape. By the time the heat-conducting tape 5 reaches the heat sink 12, the water droplets have already disappeared, thus not affecting the first gear 1. Furthermore, recesses or holes can be provided on the heat-conducting tape 5 to improve its water retention capacity. When water droplets fall on the heat-conducting tape 5, the recesses or holes allow the droplets to remain on it for a longer time, extending the evaporation and heat absorption time, thereby better dissipating heat from the heat-conducting tape 5.

[0032] This invention provides a sprocket with high heat dissipation performance. On the one hand, it has a heat dissipation effect, and on the other hand, it transfers thermal stress to the heat sink. This not only dissipates heat from the gears better, but also reduces the thermal stress on the gears and extends their service life.

[0033] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A sprocket with high heat dissipation performance, comprising a first gear, a second gear, and a chain responsible for transmission between the first gear and the second gear. characterized in that The sprocket with high heat dissipation performance also includes a heat conduction tape and a secondary pulley. An extended heat dissipation fin is provided on each tooth of the first gear. The heat conduction tape is wrapped around the heat dissipation fin and the secondary pulley. The heat conduction tape is responsible for the transmission between the heat dissipation fin and the secondary pulley.

2. The sprocket having high heat dissipation performance according to claim 1, wherein The secondary pulley is mounted on the second gear.

3. The sprocket having high heat dissipation performance according to claim 1, wherein The conductive tape is a metal strip.

4. The sprocket with high heat dissipation performance according to claim 1, characterized in that, The heat sink is an L-shaped heat sink or a fan impeller-shaped heat sink.

5. The sprocket with high heat dissipation performance according to claim 1, characterized in that, The heat sink is fixed to the first gear by bolts.

6. The sprocket with high heat dissipation performance according to claim 1, characterized in that, An air-cooled module or a water-cooled module is installed near the heat conduction tape or the secondary pulley.

7. The sprocket with high heat dissipation performance according to claim 1, characterized in that, A drip module is installed near the conductive heat line.

8. The sprocket with high heat dissipation performance according to claim 7, characterized in that, The conductive tape has recesses or holes.

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