A closed gear box with cooling function

Abstract

The utility model discloses a closed gearbox with a cooling function, comprising an upper shell and a lower shell, the upper shell and the lower shell are sealed and connected to form a sealed cavity, the lower shell has a motor mounting groove, a motor is arranged in the motor mounting groove, the output shaft of the motor is penetrated with an output gear, an upper mounting plate, a wind impeller and a lower mounting plate in sequence from top to bottom, the lower mounting plate is fixed to the motor by screws, the upper mounting plate is fixed to the lower mounting plate by screws, and a plurality of ventilation holes are arranged at intervals on the upper mounting plate and the lower mounting plate, and the air flow generated by the rotation of the wind impeller continuously transports the heat generated by the operation of the motor to the gearbox through the ventilation holes on the upper and lower mounting plates. Through the circulation of wind force, the heat generated by the motor in the closed gearbox is convected and taken away. Since the area of ​​the gearbox shell is large, the heat brought into the shell accessories can be dissipated outward with the help of the shell, thereby achieving the purpose of heat dissipation and cooling of the motor.

Description

Technical Field

[0001] The utility model relates to a gear box, in particular to a closed gear box with a temperature reduction function. Background Art

[0002] At present, some household appliances involve waterproofing requirements during operation, which will involve the cooling and heat dissipation conditions of closed equipment. This application scenario is mainly concentrated in artificial intelligence appliances and electrical appliances. Previously, closed equipment generally did not have a heat dissipation and cooling function installed or required the addition of other compression equipment for cooling, which resulted in excessive heat generation of the motor during operation, causing the electrical equipment to fail to operate normally and increasing the cost of continued use and maintenance. Therefore, it is urgent to develop a structure that can cool the closed gear box. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a closed gear box with a cooling function.

[0004] The purpose of the utility model is achieved through the following technical solutions: a closed gear box with a cooling function, comprising an upper shell and a lower shell, both of which are made of metal materials and have a heat-conducting effect, so that the heat in the cavity diffuses outward, the upper shell and the lower shell are sealed and connected to form a sealed cavity, the lower shell has a motor mounting groove, a motor is arranged in the motor mounting groove, the output shaft of the motor is sequentially penetrated by an output gear, an upper mounting plate, an impeller and a lower mounting plate from top to bottom, the lower mounting plate is fixed to the motor by screws, the upper mounting plate is fixed to the lower mounting plate by screws, a plurality of ventilation holes are arranged on the upper mounting plate and the lower mounting plate, the impeller is fixedly connected to the output shaft of the motor, and when the output shaft of the motor rotates, it can drive the impeller to rotate.

[0005] As an improvement of the closed gearbox with cooling function of the utility model, the ventilation holes on the upper mounting plate and the lower mounting plate are connected to form a cooling air duct, and the impeller can discharge the heat of the motor into the cavity. The hot air in the cavity can be dissipated through the upper shell and the lower shell. Since the area of ​​the gearbox shell is large, the heat is brought into the shell accessories and can be dissipated outward with the help of the shell, thereby achieving the purpose of heat dissipation and cooling of the motor. Reduce the risk of the motor overheating and stopping working or burning out.

[0006] As an improvement of the closed gear box with cooling function of the utility model, a sealing gasket is provided at the connection between the upper shell and the lower shell, a plurality of screw ears are provided at intervals on the edge of the upper shell, each screw ear is provided with a through hole, and the lower shell is provided with a screw hole corresponding to the position of each screw ear, and the upper shell and the lower shell are fixedly connected by screws.

[0007] As an improvement of the closed gear box with cooling function of the utility model, a gear set is provided in the cavity, and the gear set includes a first gear pair, a second gear pair, a third gear pair and a fourth bevel gear. An output rod is connected to the axle of the fourth bevel gear, and the first gear pair is respectively meshed with the output gear and the second gear pair, and the third gear pair is respectively meshed with the fourth bevel gear and the second gear pair.

[0008] As an improvement of the closed gear box with cooling function of the utility model, a first axle is provided on the upper mounting plate, the first gear pair is fixed on the first axle, the first gear pair includes a first upper bevel gear and a first lower bevel gear, and the first upper bevel gear is meshed with the output gear.

[0009] As an improvement of the closed gear box with cooling function of the utility model, the second gear pair includes a second upper bevel gear and a second lower bevel gear, the axle of the second gear pair is fixed on the lower shell, and the second lower bevel gear is meshed with the first lower bevel gear.

[0010] As an improvement of the closed gear box with cooling function of the utility model, the third gear pair includes a third upper bevel gear and a third lower bevel gear, the axle of the third gear pair is fixed on the lower shell body, the third upper bevel gear is meshed with the second upper bevel gear, and the third lower bevel gear is meshed with the fourth bevel gear.

[0011] As an improvement of the closed gear box with cooling function of the utility model, an output rod mounting hole is also provided on the lower shell body, a limiting step is provided on the side wall of the output rod mounting hole, a top step is provided on the output rod, the output rod passes through the output rod mounting hole, the top step abuts against the limiting step, and a sealing gasket is provided between the top step and the limiting step.

[0012] The beneficial effect of the utility model is that the utility model is provided with an upper mounting plate, an impeller and a lower mounting plate on the output shaft of the motor, and the ventilation holes on the upper mounting plate and the lower mounting plate are used. When the impeller rotates, the ventilation holes on the lower mounting plate diffuse the heat of the motor to the position of the impeller, and the impeller works without resistance through the operation of the motor, continuously generating strong wind force. The air flow generated by the rotation of the impeller continuously transports the heat generated by the operation of the motor to the gear box (inside the cavity) through the ventilation holes on the upper and lower mounting plates. Through the circulation of wind force, the heat generated by the motor in the closed gear box is convected and taken away. Since the area of ​​the gear box housing is large, the heat brought into the housing accessories can be dissipated outward with the help of the housing, thereby achieving the purpose of heat dissipation and cooling of the motor. Reduce the risk of the motor overheating and stopping working or burning out. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded view of the utility model;

[0014] Figure 2 It is a schematic diagram of the gear set structure of the utility model;

[0015] The accompanying drawings are marked as follows: 1. upper shell, 2. lower shell, 3. motor mounting groove, 4. motor, 5. output gear, 6. upper mounting plate, 7. impeller, 8. lower mounting plate, 9. ventilation hole, 10. screw buckle ear 11. gear set, 12. first gear pair, 13. second gear pair, 14. third gear pair, 15. fourth bevel gear, 16. output rod, 17. first wheel axle, 18. output rod mounting hole, 19. limiting step, 20. top step, 121. first upper bevel gear, 122. first lower bevel gear, 131. second upper bevel gear, 132. second lower bevel gear, 141. third upper bevel gear, 142. third lower bevel gear. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0019] like Figure 1 and Figure 2 As shown, a closed gear box with a cooling function comprises an upper shell 1 and a lower shell 2. Both the upper shell 1 and the lower shell 2 are made of metal materials and have a heat-conducting effect, so that the heat in the cavity is diffused outward. The upper shell 1 and the lower shell 2 are sealed and connected to form a sealed cavity. The lower shell 2 has a motor mounting groove 3. A motor 4 is arranged in the motor mounting groove 3. The output shaft of the motor 4 is penetrated by an output gear 5, an upper mounting plate 6, a fan wheel 7 and a lower mounting plate 8 from top to bottom in sequence. The lower mounting plate 8 is fixed to the motor 4 by screws. The upper mounting plate 6 is fixed to the lower mounting plate 8 by screws. A plurality of ventilation holes 9 are arranged on the upper mounting plate 6 and the lower mounting plate 8 at intervals. The fan wheel 7 is fixedly connected to the output shaft of the motor 4. When the output shaft of the motor 4 rotates, it can drive the fan wheel 7 to rotate.

[0020] Preferably, the ventilation holes 9 on the upper mounting plate 6 and the lower mounting plate 8 are connected to form a cooling air duct, and the impeller can discharge the heat of the motor 4 into the cavity. The hot air in the cavity can be dissipated through the upper shell 1 and the lower shell 2. Since the area of ​​the gearbox shell is large, the heat brought into the shell accessories can be dissipated outward with the help of the shell, thereby achieving the purpose of heat dissipation and cooling of the motor. Reduce the risk of the motor overheating and stopping working or burning out.

[0021] Preferably, a sealing gasket is provided at the connection between the upper shell 1 and the lower shell 2, a plurality of screw ears 10 are provided at intervals on the edge of the upper shell 1, each screw ear 10 is provided with a through hole, and the lower shell 2 is provided with a screw hole corresponding to the position of each screw ear, and the upper shell 1 and the lower shell 2 are fixedly connected by screws.

[0022] Preferably, a gear set 11 is provided in the cavity, and the gear set 11 includes a first gear pair 12, a second gear pair 13, a third gear pair 14 and a fourth bevel gear 15. An output rod 16 is connected to the axle of the fourth bevel gear 15. The first gear pair 12 is respectively meshed with the output gear 5 and the second gear pair 13, and the third gear pair 14 is respectively meshed with the fourth bevel gear 15 and the second gear pair 13.

[0023] Preferably, a first axle 17 is provided on the upper mounting plate 6 , and the first gear pair 12 is fixed on the first axle 17 . The first gear pair 12 includes a first upper bevel gear 121 and a first lower bevel gear 122 . The first upper bevel gear 121 is meshed with the output gear 5 .

[0024] Preferably, the second gear pair 13 includes a second upper bevel gear 131 and a second lower bevel gear 132 , the axle of the second gear pair 13 is fixed on the lower housing 2 , and the second lower bevel gear 132 is meshed with the first lower bevel gear 122 .

[0025] Preferably, the third gear pair 14 includes a third upper bevel gear 141 and a third lower bevel gear 142 , the axle of the third gear pair 14 is fixed on the lower housing 2 , the third upper bevel gear 141 meshes with the second upper bevel gear 131 , and the third lower bevel gear 142 meshes with the fourth bevel gear 15 .

[0026] Preferably, an output rod mounting hole 18 is further provided on the lower shell body 2, a limiting step 19 is provided on the side wall of the output rod mounting hole 18, a top step 20 is provided on the output rod 16, the output rod 16 passes through the output rod mounting hole, and the top step 20 abuts against the limiting step 19, and a sealing gasket is provided between the top step 20 and the limiting step 19.

[0027] Although the 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 variations may be made to the embodiments without departing from the principles and structures of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed gear box with cooling function, characterized in that: The invention comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are sealed and connected to form a sealed cavity, the lower shell has a motor mounting groove, a motor is arranged in the motor mounting groove, an output shaft of the motor is penetrated with an output gear, an upper mounting plate, an impeller and a lower mounting plate in sequence from top to bottom, the lower mounting plate is fixed to the motor by screws, the upper mounting plate is fixed to the lower mounting plate by screws, a plurality of ventilation holes are arranged on the upper mounting plate and the lower mounting plate at intervals, the impeller is fixedly connected to the output shaft of the motor, and when the output shaft of the motor rotates, the impeller can be driven to rotate.

2. The enclosed gearbox with cooling function according to claim 1, characterized in that: The ventilation holes on the upper mounting plate and the lower mounting plate are connected to form a cooling air duct, and the impeller can discharge the heat of the motor into the cavity.

3. The enclosed gearbox with cooling function according to claim 2, characterized in that: A sealing gasket is provided at the connection between the upper shell and the lower shell, a plurality of screw ears are provided at intervals on the edge of the upper shell, each screw ear is provided with a through hole, and a screw hole is provided in the lower shell corresponding to the position of each screw ear, and the upper shell and the lower shell are fixedly connected by screws.

4. The enclosed gearbox with cooling function according to claim 2, characterized in that: A gear set is provided in the cavity, and the gear set includes a first gear pair, a second gear pair, a third gear pair and a fourth bevel gear. An output rod is connected to the axle of the fourth bevel gear. The first gear pair is respectively meshed with the output gear and the second gear pair, and the third gear pair is respectively meshed with the fourth bevel gear and the second gear pair.

5. The enclosed gearbox with cooling function according to claim 4, characterized in that: The upper mounting plate is provided with a first axle, the first gear pair is fixed on the first axle, the first gear pair comprises a first upper bevel gear and a first lower bevel gear, and the first upper bevel gear is meshed with the output gear.

6. The enclosed gearbox with cooling function according to claim 5, characterized in that: The second gear pair includes a second upper bevel gear and a second lower bevel gear, the axle of the second gear pair is fixed on the lower housing, and the second lower bevel gear is meshed with the first lower bevel gear.

7. The enclosed gearbox with cooling function according to claim 6, characterized in that: The third gear pair includes a third upper bevel gear and a third lower bevel gear, the axle of the third gear pair is fixed on the lower housing, the third upper bevel gear is meshed with the second upper bevel gear, and the third lower bevel gear is meshed with the fourth bevel gear.

8. The enclosed gearbox with cooling function according to claim 4, characterized in that: The lower shell body is also provided with an output rod mounting hole, a limiting step is provided on the side wall of the output rod mounting hole, the output rod is provided with a top step, the output rod passes through the output rod mounting hole, the top step abuts against the limiting step, and a sealing gasket is provided between the top step and the limiting step.

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