Heat dissipation device for gearbox

Abstract

The heat dissipation device comprises an automobile chassis, a gearbox body is installed in the automobile chassis through bolts, the left end of the gearbox body is rotationally connected with an input shaft, and the left end of the input shaft is fixedly connected with the output end of an engine; according to the heat dissipation device for the gearbox, a shell is connected to the bottom of the automobile chassis through bolts, a transmission rod is rotationally connected to the interior of the shell, and a fan is fixedly arranged on the outer side of the transmission rod in a sleeving mode. According to the heat dissipation device for the gearbox, heat in the gearbox body is transferred into the shell through the heat dissipation fins, at the moment, the fan rotates to rapidly discharge the heat in the shell, the heat dissipation fins are cooled, and air cooling heat dissipation of the gearbox body is achieved; and then cooling water in the cooling pipe can be used for conducting water cooling on the gearbox body, and therefore the heat dissipation effect on the gearbox body can be improved through air cooling and water cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, in particular to a heat dissipation device for a gearbox. Background Art

[0002] The gearbox is a gearbox that changes the transmission ratio and the direction of movement. The gearbox is usually installed in the vehicle's automatic transmission and speed change mechanism. The speed change mechanism consists of planetary gears, torque converters, and hydraulic control systems. The speed change mechanism will produce losses during the movement process. These losses are dissipated outward in the form of heat. At this time, a heat sink is needed to dissipate the heat of the gearbox to ensure that the gearbox works within a certain temperature range.

[0003] For example, a heat dissipation device for an automatic transmission with a publication number of "CN217539556U" can dissipate heat for the automatic transmission body by arranging a heat sink, a hair dryer, an air inlet A, an air outlet A, an air inlet B and an air outlet B. At the same time, the air inlet A, the air outlet A, the air inlet B and the air outlet B are all provided with a filter to prevent small stones and impurities from entering the protective plate. At the same time, the filter can prevent dust from entering the protective plate when the hair dryer is blowing air to dissipate heat, thereby affecting the heat dissipation effect of the heat sink, thereby further improving the practicality of the device; by arranging a protective plate, an anti-collision plate, a lower fixed column, an upper fixed column, a lower arc-shaped spring sheet, an upper arc-shaped spring sheet and an arc-shaped rubber block, when the car is driving on a road with poor road conditions, when the anti-collision plate is hit, the protective plate can be shock-absorbing and buffered, thereby not affecting the automatic transmission body, thereby avoiding damage to the automatic transmission body, thereby further improving the practicality of the device;

[0004] When the above technical solution is in use, a hair dryer and a heat sink are used to dissipate heat from the automatic transmission body. However, since the heat dissipation effect is poor, the heat dissipation effect is poor. Once the temperature inside the transmission is too high, the transmission cannot be cooled down quickly by air cooling alone, resulting in the transmission's performance being affected by the excessively high internal temperature.

[0005] Therefore, we proposed a heat dissipation device for the gearbox that can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a heat dissipation device for a gearbox, so as to solve the problem that the heat dissipation effect is poor only by relying on air cooling, and once the temperature inside the gearbox is too high, the gearbox cannot be cooled down quickly by relying on air cooling alone, resulting in the gearbox affecting its performance due to the excessively high internal temperature.

[0007] To achieve the above object, the utility model provides the following technical solution: a heat dissipation device for a gearbox, comprising a car chassis, a gearbox body is installed by internal bolts of the car chassis, and the left end of the gearbox body is rotatably connected to an input shaft, and the left end of the input shaft is fixedly connected to the output end of the engine;

[0008] A heat dissipation device for a gearbox, further comprising:

[0009] The bottom bolts of the automobile chassis are connected with a housing, the interior of the housing is rotatably connected with a transmission rod, and a fan is fixedly mounted on the outer side of the transmission rod, and the outer side of the left end of the transmission rod is connected to the outer side of the input shaft through a pulley assembly;

[0010] The left and right sides of the shell are provided with heat dissipation ports, and the inner wall of the heat dissipation port is bolted with a dustproof net, the bottom of the inner wall of the gearbox body is penetrated by heat dissipation fins installed at equal intervals, a box body is arranged on the right side inside the automobile chassis, and a water tank is installed above the box body inside the automobile chassis;

[0011] A cooling pipe is arranged on the outer side of the gearbox body, a water inlet pipe is fixedly connected between the water tank and the box body, and a piston plate is slidably connected inside the box body.

[0012] Preferably, cooling water is stored in the water tank, and the water tank is connected to the inside of the water inlet pipe through the water inlet pipe.

[0013] Preferably, one end of the cooling pipe is fixedly connected to the left side of the box body, and the cooling pipe is communicated with the interior of the box body.

[0014] Preferably, a liquid storage ring is installed on the left side of the bottom of the inner wall of the shell, and a drain pipe is fixed between the liquid storage ring and the box body, a micro water pump is installed on the left side of the water tank inside the automobile chassis, and both ends of the micro water pump are respectively connected to the water tank and the liquid storage ring through connecting pipes, and solenoid valves are installed inside the drain pipe, water inlet pipe and cooling pipe.

[0015] Preferably, the water tank and the interior of the liquid storage ring are connected through a connecting pipe, and the liquid storage ring and the interior of the box body are connected through a drain pipe.

[0016] Preferably, the inside of the automobile chassis is located on the right side of the box body and is rotatably connected to a turntable via an axis, the inside of the automobile chassis is located on the left side of the turntable and is hinged to a guide block, and the guide block is hingedly connected to the piston plate and the turntable via a movable plate.

[0017] Preferably, the guide block is arranged in a "V" shape, the shaft end of the turntable extends into the interior of the shell, and the shaft end of the turntable is connected to the right end of the transmission rod through a bevel gear set.

[0018] Compared with the prior art, the beneficial effects of the utility model are: the heat dissipation device for the gearbox adopts a new structural design, and its specific contents are as follows:

[0019] (1) When the car is running, the input shaft rotates and uses the pulley assembly to drive the transmission rod to rotate synchronously, causing the fan to rotate. At the same time, the heat dissipation fins transfer the heat in the gearbox body to the housing. At this time, the fan rotates to quickly discharge the heat in the housing and cool the heat dissipation fins;

[0020] Furthermore, the dustproof net can prevent external dust from entering the housing;

[0021] (2) Open the solenoid valve on the water inlet pipe to allow the cooling water in the water tank to enter the box body. At the same time, the transmission rod drives the turntable to rotate using the bevel gear set, and under the action of the movable plate and the guide block, it can drive the piston plate to move leftward in the box body, thereby pushing the cooling water into the cooling pipe. At this time, the cooling water in the cooling pipe can be used to water-cool the gearbox body, thereby utilizing dual cooling of air cooling and water cooling to improve the heat dissipation effect of the gearbox body;

[0022] Furthermore, the opening and closing of the water inlet pipe, cooling pipe and drain pipe can be controlled by the provided solenoid valve;

[0023] (3) After the cooling water absorbs the heat generated by the gearbox body, the turntable rotates and uses the action of the movable plate and the guide block to drive the piston plate to move rightward and reset in the box body, and generate negative pressure, which can suck the cooling water that absorbs heat in the cooling pipe into the box body. At this time, the solenoid valve on the drain pipe is opened, so that the cooling water that absorbs heat in the box body enters the liquid storage ring 6 through the drain pipe, and then cooperates with the fan to rotate and generate cold air, which can quickly cool the cooling water that absorbs heat in the liquid storage ring, thereby facilitating the next cooling use;

[0024] Furthermore, when the cooling water in the liquid storage ring cools down, the micro water pump is started, and the micro water pump transports the cooling water in the liquid storage ring 16 back to the water tank through the connecting pipe, and the above operation is repeated, thereby realizing the recycling of cooling water and improving the heat dissipation efficiency of the gearbox body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the piston plate moving to the left in the utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the guide block, movable plate and turntable of the utility model;

[0028] Figure 4This is a schematic diagram of the three-dimensional structure of the liquid storage ring and the drainage pipe of the utility model;

[0029] Figure 5 This is a schematic diagram of the side view structure of the fan of the utility model;

[0030] Figure 6 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0031] In the figure: 1. Automobile chassis; 2. Transmission body; 3. Input shaft; 4. Housing; 5. Transmission rod; 6. Fan; 7. Box body; 8. Water tank; 9. Water inlet pipe; 10. Turntable; 11. Guide block; 12. Movable plate; 13. Piston plate; 14. Cooling pipe; 15. Micro water pump; 16. Liquid storage ring; 17. Heat dissipation fins; 18. Dust net; 19. Drain pipe; 20. Connecting pipe. DETAILED DESCRIPTION

[0032] 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 in 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.

[0033] See also Figure 1-Figure 6 , the utility model provides the following technical solutions: a heat dissipation device for a gearbox;

[0034] Embodiment 1: In order to solve the problem that the prior art relies only on air cooling to dissipate heat, resulting in poor heat dissipation effect, and once the temperature inside the gearbox is too high, the gearbox cannot be quickly cooled down by air cooling alone, resulting in the gearbox affecting its performance due to the high internal temperature, the following solution is disclosed, and specific reference is made to Figure 1-Figure 3 and Figure 5 and Figure 6 As shown, it includes a car chassis 1, a gearbox body 2 is installed with internal bolts of the car chassis 1, and the left end of the gearbox body 2 is rotatably connected to an input shaft 3, and the left end of the input shaft 3 is fixedly connected to the output end of the engine;

[0035] It also includes: a housing 4 is bolted to the bottom of the automobile chassis 1, a transmission rod 5 is rotatably connected to the inside of the housing 4, and a fan 6 is fixedly mounted on the outside of the transmission rod 5, and the outside of the left end of the transmission rod 5 is connected to the outside of the input shaft 3 through a pulley assembly; heat dissipation ports are provided on both sides of the housing 4, and a dustproof net 18 is bolted to the inner wall of the heat dissipation port, and heat dissipation fins 17 are installed at equal intervals through the bottom of the inner wall of the gearbox body 2, a box body 7 is provided on the right side of the inside of the automobile chassis 1, and a water tank 8 is installed above the box body 7 inside the automobile chassis 1; a cooling pipe 14 is provided on the outside of the gearbox body 2, one end of the cooling pipe 14 is fixedly connected to the left side of the box body 7, and the cooling pipe 14 is connected to the inside of the box body 7, a water inlet pipe 9 is fixedly connected between the water tank 8 and the box body 7, cooling water is stored in the water tank 8, and the water tank 8 is connected to the inside of the water inlet pipe 9 through the water inlet pipe 9, and a piston plate 13 is fitted and slidably connected to the inside of the box body 7;

[0036] When the car is running, a certain amount of heat will be generated inside the gearbox body 2. At this time, the input shaft 3 rotates and the pulley assembly is used to drive the transmission rod 5 to rotate synchronously, so that the fan 6 rotates. At the same time, the heat dissipation fins 17 transfer the heat in the gearbox body 2 to the shell 4. At this time, the fan 6 rotates to quickly discharge the heat in the shell 4, and at the same time, the heat dissipation fins 17 are cooled. The dustproof net 18 is set to prevent external dust from entering the shell 4 from the heat dissipation port. Then, the solenoid valve on the water inlet pipe 9 is opened to allow the cooling water in the water tank 8 to enter the box body 7. At the same time, the transmission rod 5 drives the turntable 10 to rotate using the bevel gear set, and under the action of the movable plate 12 and the guide block 11, it can drive the piston plate 13 to move to the left in the box body 7, and then push the cooling water into the cooling pipe 14. At this time, the cooling water in the cooling pipe 14 can be used to water-cool the gearbox body 2, thereby utilizing double cooling of air cooling and water cooling to improve the heat dissipation effect of the gearbox body 2.

[0037] Embodiment 2: Different from Embodiment 1, this embodiment can facilitate the cooling water that absorbs heat in the box body 7 to be discharged into the liquid storage ring 16 by opening the solenoid valve on the drain pipe 19, and cool it for the next cooling use. For details, refer to Figure 1-Figure 4 As shown, the inside of the automobile chassis 1 is located on the right side of the box body 7 and is connected to a turntable 10 through an axis rotation. The inside of the automobile chassis 1 is located on the left side of the turntable 10 and is hinged to a guide block 11, and the guide block 11 is hinged to the piston plate 13 and the turntable 10 through a movable plate 12. The guide block 11 is arranged in a "V" shape, and the shaft end of the turntable 10 extends into the inside of the housing 4, and the shaft end of the turntable 10 is connected to the right end of the transmission rod 5 through a bevel gear set.

[0038] After the cooling water absorbs the heat generated by the gearbox body 2, the turntable 10 rotates and uses the action of the movable plate 12 and the guide block 11 to drive the piston plate 13 to move rightward and reset in the box body 7, and generate negative pressure, which can suck the cooling water that absorbs heat in the cooling pipe 14 into the box body 7. At this time, the solenoid valve on the drain pipe 19 is opened, so that the cooling water that absorbs heat in the box body 7 enters the liquid storage ring 16 through the drain pipe 19, and then cooperates with the fan 6 to rotate and generate cold air, which can quickly cool the cooling water that absorbs heat in the liquid storage ring 16, thereby facilitating the next cooling use.

[0039] Embodiment 3: Different from Embodiment 2, this embodiment uses a micro water pump 15 and a connecting pipe 20 to return the cooling water in the liquid storage ring 16 to the water tank 8. Figure 1 and Figure 4 As shown, a liquid storage ring 16 is installed on the left side of the bottom of the inner wall of the shell 4, and a drain pipe 19 is fixed between the liquid storage ring 16 and the box body 7, a micro water pump 15 is installed on the left side of the water tank 8 inside the automobile chassis 1, and the two ends of the micro water pump 15 are respectively connected to the water tank 8 and the liquid storage ring 16 through a connecting pipe 20, the inside of the water tank 8 and the liquid storage ring 16 are connected through the connecting pipe 20, and the liquid storage ring 16 is connected to the inside of the box body 7 through the drain pipe 19, and the inside of the drain pipe 19, the water inlet pipe 9 and the cooling pipe 14 are all installed with electromagnetic valves;

[0040] When the cooling water in the liquid storage ring 16 cools down, the micro water pump 15 is started, and the micro water pump 15 transports the cooling water in the liquid storage ring 16 back to the water tank 8 through the connecting pipe 20. The above operation is repeated to realize the recycling of cooling water and improve the heat dissipation efficiency of the gearbox body 2.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation device for a gearbox, comprising a car chassis (1), a gearbox body (2) being bolted inside the car chassis (1), and an input shaft (3) being rotatably connected to the left end of the gearbox body (2), and the left end of the input shaft (3) being fixedly connected to an output end of an engine; It is characterized in that Also includes: The bottom of the automobile chassis (1) is bolted to a housing (4), the interior of the housing (4) is rotatably connected to a transmission rod (5), a fan (6) is sleeved and fixed on the outer side of the transmission rod (5), and the outer side of the left end of the transmission rod (5) is transmission-connected to the outer side of the input shaft (3) via a pulley assembly; The left and right sides of the housing (4) are provided with heat dissipation openings, and the inner walls of the heat dissipation openings are bolted with dustproof nets (18), the bottom of the inner wall of the gearbox body (2) is penetrated by heat dissipation fins (17) installed at equal intervals, a box body (7) is arranged on the right side inside the automobile chassis (1), and a water tank (8) is installed above the box body (7) inside the automobile chassis (1); A cooling pipe (14) is arranged on the outside of the gearbox body (2), a water inlet pipe (9) is fixedly connected between the water tank (8) and the box body (7), and a piston plate (13) is slidably connected inside the box body (7).

2. A heat dissipation device for a gearbox according to claim 1, characterized in that: The water tank (8) stores cooling water inside, and the water tank (8) is connected to the inside of the water inlet pipe (9) through the water inlet pipe (9).

3. A heat dissipation device for a gearbox according to claim 1, characterized in that: One end of the cooling pipe (14) is fixedly connected to the left side of the box body (7), and the cooling pipe (14) is communicated with the interior of the box body (7).

4. A heat dissipation device for a gearbox according to claim 1, characterized in that: A liquid storage ring (16) is installed on the left side of the bottom of the inner wall of the shell (4), and a drainage pipe (19) is fixed between the liquid storage ring (16) and the box body (7). A micro water pump (15) is installed on the left side of the water tank (8) inside the automobile chassis (1), and the two ends of the micro water pump (15) are respectively connected to the water tank (8) and the liquid storage ring (16) through a connecting pipe (20). Solenoid valves are installed inside the drainage pipe (19), the water inlet pipe (9) and the cooling pipe (14).

5. A heat dissipation device for a gearbox according to claim 4, characterized in that: The water tank (8) and the interior of the liquid storage ring (16) are connected via a connecting pipe (20), and the liquid storage ring (16) and the interior of the box body (7) are connected via a drainage pipe (19).

6. The heat dissipation device for a gearbox according to claim 1, characterized in that: The automobile chassis (1) is located on the right side of the box body (7) and is rotatably connected to a turntable (10) via an axis. The automobile chassis (1) is located on the left side of the turntable (10) and is hinged to a guide block (11). The guide block (11) is hingedly connected to the piston plate (13) and the turntable (10) via a movable plate (12).

7. A heat dissipation device for a gearbox according to claim 6, characterized in that: The guide block (11) is arranged in a "V" shape, the shaft end of the turntable (10) extends into the interior of the housing (4), and the shaft end of the turntable (10) is connected to the right end of the transmission rod (5) through a bevel gear set.

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