Cooling structure of a gear box

Abstract

This utility model discloses a cooling structure for a gearbox, belonging to the field of gearbox technology. It includes a gearbox with a cooling frame having an inlet and an outlet on its exterior. Cooling components are arranged inside and outside the cooling frame. Each cooling component includes a cooling pipe, a connecting pipe, a cooling tank, a water pump, and a heat exchanger. The water pump is connected to the cooling pipe and the cooling tank via the connecting pipe, with the connection point between the water pump and the cooling tank located near the bottom of the cooling tank. The heat exchanger is connected to the cooling pipe and the cooling tank via the connecting pipe, with the connection point between the heat exchanger and the cooling tank located near the top of the cooling tank. A liquid inlet is provided at the top of the cooling tank, and a liquid outlet is provided on the side wall of the cooling tank near the bottom. This design improves the cooling effect.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and specifically to a cooling structure for a gearbox. Background Technology

[0002] A gearbox is a widely used mechanical transmission device that changes speed and torque output through gear meshing. Its core principle is: the input shaft drives the gears to rotate, and the motion and power are transmitted to the output shaft through gear meshing. By adjusting the gear ratio, the effect of decreasing speed and increasing torque (deceleration) or increasing speed and decreasing torque (speed increase) can be achieved. During gearbox operation, high-speed rotation generates heat, causing the internal temperature of the gearbox to rise and affecting the operation of the internal lubricating oil. Therefore, heat dissipation is necessary.

[0003] For compact gearboxes, due to limited internal space, external cooling is generally used, which involves blowing air onto the gearbox from the outside. However, in actual use, cooling the gearbox by blowing air from one side results in poor heat dissipation.

[0004] Based on this, the present invention designs a cooling structure for a gearbox to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a cooling structure for a gearbox.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cooling structure for a gearbox includes a gearbox with a cooling frame having an inlet and an outlet on its exterior. Cooling components are disposed inside and outside the cooling frame. Each cooling component includes a cooling pipe, a connecting pipe, a cooling tank, a water pump, and a heat exchanger. The water pump is connected to the cooling pipe and the cooling tank via the connecting pipe, and the connection point between the water pump and the cooling tank is located near the bottom of the cooling tank. The heat exchanger is connected to the cooling pipe and the cooling tank via the connecting pipe, and the connection point between the heat exchanger and the cooling tank is located near the top of the cooling tank. A liquid inlet is provided at the top of the cooling tank, and a liquid outlet is provided on the side wall of the cooling tank near the bottom.

[0008] Furthermore, the inlet and outlet have the same diameter, the inner diameter of the cooling pipe is equal to the outlet diameter, and the cooling pipe is arranged in a ring on the outer wall of the gearbox.

[0009] Furthermore, the cooling pipe has internal threads at both ends, and the connecting pipe has external threads on the outer side wall of its end. The outer diameter of the connecting pipe is equal to the diameter of the outlet.

[0010] Furthermore, connecting plates are fixed at both ends of the cooling pipe, and connecting screws are threaded between the connecting plates and the cooling frame, with the connecting screws connecting to the connecting plates from the outside of the cooling frame.

[0011] Furthermore, fixing screw holes are provided on both the side wall of the cooling frame and the side wall of the gearbox, and fixing screws are threaded into the fixing screw holes.

[0012] Furthermore, the bottom of the cooling frame is symmetrically provided with pads, and the outer side of the cooling frame is provided with a through groove, in which a cooling fan is installed.

[0013] Furthermore, the through slots are arranged on two mutually perpendicular sides of the cooling frame away from the inlet.

[0014] Furthermore, the cooling fan includes a mounting frame, a fan, and a motor. The mounting frame is fixed in the through slot, and the fan and motor are mounted on the mounting frame. The motor provides power to the fan.

[0015] Furthermore, the minimum vertical distance between the motor and the side of the mounting frame is less than the height of the pad.

[0016] Furthermore, the inner wall of the through groove is symmetrically provided with mounting grooves, the side of the mounting frame is fitted with a mounting block, and the mounting block and the mounting groove are threaded with mounting screws.

[0017] Beneficial effects

[0018] 1. By setting up cooling components, the water pump delivers coolant to the cooling pipes. The cooling pipes, which are installed in close contact with multiple surfaces of the gearbox, carry away heat from multiple sides of the gearbox, thereby improving the cooling effect.

[0019] 2. By setting internal and external threads, the connection between cooling pipes and connecting pipes is facilitated; by setting connecting plates and connecting screws, the connection between cooling pipes and cooling frames is facilitated; by setting fixing screw holes and fixing screws, the connection between cooling frames and gearbox is facilitated; by setting through slots, cooling fans, mounting frames, fans and motors, the motor drives the fan to rotate, assisting the cooling pipes in cooling the gearbox and improving the effect; by setting mounting slots, mounting blocks and mounting screws, the installation and removal of cooling fans is facilitated. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the main structure of a cooling structure for a gearbox according to the present invention.

[0022] Figure 2 This is a perspective view of the cooling pipe structure of a gearbox cooling structure according to the present invention;

[0023] Figure 3 This is a perspective view of a gearbox structure for cooling a gearbox according to the present invention.

[0024] Figure 4 This is a perspective view of the cooling frame structure of a gearbox according to the present invention.

[0025] Figure 5 This is a three-dimensional structural view of the cooling component of a gearbox cooling structure according to the present invention;

[0026] Figure 6 This is a perspective view of the cooling fan structure of a gearbox according to the present invention.

[0027] The labels in the diagram represent:

[0028] 1. Gearbox; 2. Cooling frame; 3. Inlet; 4. Outlet; 5. Cooling pipe; 6. Connecting pipe; 7. Cooling tank; 8. Water pump; 9. Heat exchanger; 10. Liquid inlet; 11. Drain outlet; 12. Internal thread; 13. External thread; 14. Connecting plate; 15. Connecting screw; 16. Fixing screw hole; 17. Fixing screw; 18. Washer plate; 19. Through groove; 20. Radiator fan; 21. Mounting frame; 22. Fan; 23. Motor; 24. Mounting slot; 25. Mounting block; 26. Mounting screw. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A cooling structure for a gearbox includes a gearbox 1. A cooling frame 2 with an inlet 3 and an outlet 4 is provided outside the gearbox 1. Cooling components are provided inside and outside the cooling frame 2. The cooling components include a cooling pipe 5, a connecting pipe 6, a cooling box 7, a water pump 8, and a heat exchanger 9. The water pump 8 is connected to the cooling pipe 5 and the cooling box 7 through the connecting pipe 6. The water pump 8 and the cooling box 7 are located near the bottom of the cooling box 7. The heat exchanger 9 is connected to the cooling pipe 5 and the cooling box 7 through the connecting pipe 6. The heat exchanger 9 and the cooling box 7 are located near the top of the cooling box 7. A liquid replenishment port 10 is provided at the top of the cooling box 7. A liquid drain port 11 is provided on the side wall of the cooling box 7 near the bottom.

[0032] In this embodiment of the utility model, when the gearbox 1 needs to be cooled, the water pump 8 is started. The water pump 8 first transfers the coolant in the cooling tank 7 to the cooling pipe 5 through the connecting pipe 6. During the flow through the cooling pipe 5, the coolant carries away the heat from multiple sides of the gearbox 1 and cools it. Finally, after heat exchange through the heat exchanger 9, the coolant returns to the cooling tank 7 for repeated cooling. When the coolant needs to be replaced, the drain port 11 is opened to drain the existing coolant. After completion, the drain port 11 is closed and the replenishment port 10 is opened to replenish new coolant.

[0033] In this embodiment of the utility model, by setting a cooling component, the water pump 8 delivers coolant into the cooling pipe 5. The cooling pipe 5, which is set in contact with multiple surfaces of the gearbox 1, carries away the heat from multiple sides of the gearbox 1, thereby cooling it and improving the cooling effect.

[0034] In one embodiment of this utility model, the inlet 3 and outlet 4 have the same diameter, the inner diameter of the cooling pipe 5 is equal to the diameter of the outlet 4, the cooling pipe 5 is annularly arranged on the outer wall of the gearbox 1, the cooling pipe 5 has internal threads 12 at both ends, the connecting pipe 6 has external threads 13 on the outer wall of the end, the connecting pipe 6 has an outer diameter equal to the diameter of the outlet 4, the thread engagement of the external threads 13 and the internal threads 12 facilitates the installation and removal of the connecting pipe 6 and the cooling pipe 5; the cooling pipe 5 is fixed at both ends with connecting plates 14, the connecting plates 14 and the cooling frame 2 are threadedly fixed with connecting screws 15, the connecting screws 15 are connected from the outside of the cooling frame 2 to the connecting plates 14, the engagement of the connecting screws 15 and the connecting plates 14 facilitates the fixing of the cooling pipe 5 inside the cooling frame 2; the side wall of the cooling frame 2 and the side wall of the gearbox 1 are both provided with fixing screw holes 16, the fixing screw holes 16 are internally threaded with fixing screws 17, the engagement of the fixing screws 17 and the fixing screw holes 16 facilitates the fixed connection of the cooling frame 2 and the gearbox 1;

[0035] In some embodiments, such as Figure 4 and Figure 6As shown, a pad 18 is symmetrically arranged at the bottom of the cooling frame 2. A through groove 19 is opened on the outer side of the cooling frame 2. The through groove 19 is arranged on two mutually perpendicular sides of the cooling frame 2 away from the inlet 3. A cooling fan 20 is installed in the through groove 19. The cooling fan 20 includes a mounting frame 21, a fan 22 and a motor 23. The mounting frame 21 is fixed in the through groove 19. The fan 22 and the motor 23 are mounted on the mounting frame 21. The motor 23 provides power to the fan 22. The minimum vertical distance from the motor 23 to the side of the mounting frame 21 is less than the height of the pad 18. A mounting groove 24 is symmetrically opened on the inner wall of the through groove 19. A mounting block 25 is fixed to the side of the mounting frame 21. A mounting screw 26 is threaded in the mounting block 25 and the mounting groove 24.

[0036] In this embodiment of the invention, during use, the cooling pipe 5 is first fixed to the inner wall of the cooling frame 2 using the connecting plate 14 and connecting screws 15. Then, the cooling frame 2 is fitted onto the outside of the gearbox 1 and fixed using fixing screws 17 threaded through the fixing screw holes 16. The fixing screws 17 thread through the fixing screw holes 16 on both the cooling frame 2 and the gearbox 1, thus fixing the cooling frame 2, which is fitted onto the outside of the gearbox 1, to the outside of the gearbox 1. Next, the connecting pipe 6 is connected to both ends of the cooling pipe 5 through the inlet 3 and outlet 4 using external threads 13 and internal threads 12. Finally, the cooling pipe 5 is connected to the water pump 8 and the heat exchanger 9 via the connecting pipe 6. Using mounting screws 26 and mounting blocks 25, the cooling fan 20 is fixed in the through slot 19. When the gearbox 1 needs cooling, the water pump 8 is started. The water pump 8 transfers the coolant in the cooling tank 7 to the cooling pipe 5 through the connecting pipe 6. During the flow through the cooling pipe 5, the coolant carries away the heat from multiple sides of the gearbox 1 and cools it. Finally, after heat exchange through the heat exchanger 9, it returns to the cooling tank 7 for repeated cooling. At the same time, the side cooling fan 20 can be used for negative pressure ventilation to assist in cooling and further improve the cooling effect. When the coolant needs to be replaced, the drain port 11 is opened to drain the existing coolant. After completion, the drain port 11 is closed and the replenishment port 10 is opened to replenish the new coolant.

[0037] In this embodiment of the utility model, by setting a through slot 19, a cooling fan 20, a mounting frame 21, a fan 22 and a motor 23, the motor 23 drives the fan 22 to rotate, which assists the cooling pipe 5 in cooling the gearbox 1 and improves the effect; by setting a mounting slot 24, a mounting block 25 and mounting screws 26, the cooling fan 20 is easy to install and remove.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. Cooling structure of a gear box, comprising a gear box (1), characterized in that: The gearbox (1) is provided with a cooling frame (2) with an inlet (3) and an outlet (4) on the outside. Cooling components are provided inside and outside the cooling frame (2). The cooling components include a cooling pipe (5), a connecting pipe (6), a cooling box (7), a water pump (8) and a heat exchanger (9). The water pump (8) is connected to the cooling pipe (5) and the cooling box (7) through the connecting pipe (6). The water pump (8) and the cooling box (7) are connected at a position close to the bottom of the cooling box (7). The heat exchanger (9) is connected to the cooling pipe (5) and the cooling box (7) through the connecting pipe (6). The heat exchanger (9) and the cooling box (7) are connected at a position close to the top of the cooling box (7). A liquid replenishment port (10) is provided at the top of the cooling box (7). A liquid drain port (11) is provided on the side wall of the cooling box (7) near the bottom.

2. The cooling structure of a gear box according to claim 1, characterized by, The inlet (3) and outlet (4) have the same diameter, the inner diameter of the cooling pipe (5) is equal to the diameter of the outlet (4), and the cooling pipe (5) is arranged in a ring on the outer wall of the gearbox (1).

3. The cooling structure of a gear box according to claim 2, characterized by, The cooling pipe (5) has internal threads (12) at both ends, and the connecting pipe (6) has external threads (13) on the outer side wall of the end. The outer diameter of the connecting pipe (6) is equal to the diameter of the outlet (4).

4. The cooling structure of a gear box according to claim 1, characterized by, The cooling pipe (5) is fixed with connecting plates (14) at both ends. Connecting screws (15) are threaded between the connecting plates (14) and the cooling frame (2). The connecting screws (15) are connected to the connecting plates (14) from the outside of the cooling frame (2).

5. The cooling structure of a gear box according to claim 1, characterized by, Fixing screw holes (16) are provided on the side wall of the cooling frame (2) and the side wall of the gearbox (1), and fixing screws (17) are threaded into the fixing screw holes (16).

6. The cooling structure of a gear box according to claim 1, characterized by The cooling frame (2) is symmetrically provided with pads (18) at the bottom end, and a through groove (19) is provided on the outer side of the cooling frame (2), and a cooling fan (20) is installed in the through groove (19).

7. The cooling structure of a gear box according to claim 6, characterized by The through slot (19) is located on two mutually perpendicular sides of the cooling frame (2) away from the inlet (3).

8. The cooling structure of a gear box according to claim 6, characterized by, The cooling fan (20) includes a mounting frame (21), a fan (22) and a motor (23). The mounting frame (21) is fixed in the through slot (19). The fan (22) and the motor (23) are mounted on the mounting frame (21). The motor (23) provides power to the fan (22).

9. The cooling structure of the gearbox according to claim 8, characterized in that, The minimum vertical distance from the motor (23) to the side of the mounting frame (21) is less than the height of the pad (18).

10. The cooling structure of a gear box according to claim 8, characterized by, The inner wall of the through groove (19) is symmetrically provided with mounting grooves (24), and the mounting frame (21) is fixed with mounting blocks (25) on its side. The mounting blocks (25) and the mounting grooves (24) are fixed with mounting screws (26) by internal threads.

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