Gearbox oil cooling device

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a gearbox oil cooling device which comprises a heat dissipation box, a plurality of cooling fins and a plurality of oil cooling fins. The oil guide pipe is used for guiding oil in the gearbox main body out for circulation and transferring heat of the oil to the cooling fins; the cooling pipe is located in the heat dissipation box and makes contact with the multiple cooling fins, the cooling pipe is used for circulating cooling water and cooling the cooling fins, heat of oil liquid guided out of the interior of the gearbox body is transmitted to the cooling fins through an oil guide pipe located in the heat dissipation box, and the cooling effect is improved. And then the cooling pipe is used for receiving cooling water on the engine main body and circulating the cooling water, so that the temperature of the cooling fins in contact with the cooling pipe is reduced, heat exchange with heat of the oil guide pipe is carried out, and the problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a gearbox oil cooling device. Background Art

[0002] During the material transportation process using transport vehicles, when the vehicle is traveling with a heavy load, the temperature of the gearbox on the vehicle is higher than when the vehicle is unloaded. In particular, when the vehicle is transporting materials back and forth on a long slope, the gearbox load of the vehicle becomes larger. Among them, when the vehicle is going downhill for a long distance, the retarder must be frequently used to control the vehicle's speed. A heavily loaded and descending vehicle places a greater load on the retarder, and the retarder is connected to the transmission structure of the gearbox. Its purpose is to slow down the vehicle. Frequent use of the retarder under heavy load will cause the temperature of the gearbox to rise, which will cause damage to the sealing parts of the gearbox, high-temperature aging of the oil pipe, and obvious oil leakage at the joints.

[0003] Based on the above situation, it is necessary to design a transmission oil cooling device to solve the above problems. Utility Model Content

[0004] The utility model provides a gearbox oil cooling device to solve the problem in the prior art that the temperature of the vehicle gearbox rises and the heat dissipation is inconvenient.

[0005] The technical problem solved by the present invention is achieved by the following technical solutions:

[0006] A transmission oil cooling device comprises: a heat sink, wherein a plurality of heat sinks are provided inside the heat sink; an oil guide pipe, wherein the oil guide pipe is located inside the heat sink and contacts the plurality of heat sinks, and is used to circulate the oil inside the transmission body and transfer the heat of the oil to the heat sink; and a cooling pipe, wherein the cooling pipe is located inside the heat sink and contacts the plurality of heat sinks, and is used to circulate cooling water and cool the heat sinks.

[0007] Preferably, the output end and input end of the oil guide pipe are respectively connected to the oil inlet pipe and oil outlet pipe of the gearbox body, and the output end and input end of the cooling pipe are respectively connected to the water inlet and water outlet of the engine body lower water pipe.

[0008] Preferably, air-permeable plates with ventilation holes are provided on both sides of the heat dissipation box, and a wind chamber is formed between two adjacent heat sinks. The positions of the ventilation holes on the air-permeable plates on both sides correspond to the positions of the input end and the output end of the wind chamber respectively.

[0009] Preferably, an air gathering plate is connected to the ventilation hole position on the air permeable plate, and one end of the air gathering plate extends obliquely from the ventilation hole position toward the front position of the vehicle, and the air gathering plate is used to increase the air flow at the ventilation hole position.

[0010] Preferably, a protective net is connected to the side surface of the air-permeable plate close to the interior of the heat dissipation box.

[0011] Preferably, a protective cover is provided on the outer surface of one end of the heat sink where the oil guide pipe and the cooling pipe extend, and slots for heat dissipation are opened on the protective cover.

[0012] Preferably, the heat dissipation box is provided with a fixing plate 1 and a fixing plate 2, the fixing plate 1 is connected to the vehicle frame, and the heat dissipation box is fixed between the fixing plate 1 and the fixing plate 2 via a plurality of threaded rods.

[0013] The beneficial effects of the present invention are as follows: the oil inside the gearbox body is discharged through the oil guide pipe, the heat of the oil is transferred to the heat sink through the oil guide pipe located inside the radiator box, and then the cooling water on the engine body is received by the cooling pipe and circulated, thereby reducing the temperature of the heat sink in contact with the cooling pipe, exchanging heat with the heat of the oil guide pipe, reducing the temperature of the oil passing through the radiator box, and thus reducing the temperature of the gearbox body, thereby avoiding damage to components caused by high temperature and ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation scheme of the present invention or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the heat sink, oil guide pipe and cooling pipe of the utility model;

[0017] Figure 3 For this utility model Figure 2 A top view of

[0018] Figure 4 For this utility model Figure 2 Left view of;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the heat dissipation box of the present utility model;

[0020] Figure 6 It is a partial structural explosion diagram of the utility model.

[0021] In the figure, 1. Radiator; 2. Heat sink; 3. Oil guide pipe; 4. Cooling pipe; 5. Breathable plate; 6. Ventilation hole; 7. Air chamber; 8. Wind collecting plate; 9. Protective net; 10. Protective cover; 11. Slotted hole; 12. Fixing plate 1; 13. Fixing plate 2; 14. Threaded rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0023] Reference Figures 1-6 As shown, a gearbox oil cooling device includes: a heat sink 1, a plurality of heat sinks 2 are provided inside the heat sink 1, and an air chamber 7 is formed between two adjacent heat sinks 2 to enhance the heat dissipation effect of the heat sink 2 itself.

[0024] The oil guide pipe 3 is located inside the heat sink 1 and contacts a plurality of heat sinks 2. The oil guide pipe 3 is used to circulate the oil inside the gearbox body, circulate the oil inside the gearbox body and transfer the heat of the oil to the heat sink 2. The output and input ends of the oil guide pipe 3 extend to the outside of the heat sink 1. When the heat sink 2 conducts the heat on the oil guide pipe 3, it also increases the heat dissipation area of ​​the oil guide pipe 3, thereby enhancing the heat dissipation effect.

[0025] The cooling tube 4 is located inside the heat sink 1 and contacts a plurality of heat sinks 2. The output and input ends of the cooling tube 4 extend to the outside of the heat sink 1. The cooling tube 4 is used to circulate cooling water and cool the heat sink 2. The heat sink 2 increases the area of ​​the cooling tube 4 for transmitting low temperature, thereby enhancing the cooling effect.

[0026] The output end and input end of the oil guide pipe 3 are respectively connected to the oil inlet pipe and the oil outlet pipe of the gearbox body, so as to guide the oil inside the gearbox to discharge the oil, thereby better dissipating heat and cooling the oil. The output end and input end of the cooling pipe 4 are respectively connected to the water inlet and the water outlet of the water pipe under the engine body, which not only provides cooling water for the cooling pipe 4, but also provides a power source for the circulation of cooling water inside the cooling pipe 4.

[0027] The oil inside the gearbox body is discharged through the oil guide pipe 3. When the oil flows inside the radiator box 1, the heat of the oil is transferred to the heat sink 2 through the oil guide pipe 3 located inside the radiator box 1. Then the cooling water on the engine body is received by the cooling pipe 4 and the cooling water is circulated, thereby reducing the temperature of the heat sink 2 in contact with the cooling pipe 4, so that the heat sink 2 whose temperature is increased due to the oil is cooled again, and heat is exchanged with the heat of the oil guide pipe 3. The temperature of the oil passing through the radiator box 1 is reduced, and the temperature of the gearbox body is reduced, thereby avoiding damage to components caused by high temperature. Therefore, the service life of each seal and oil pipe is greatly extended, and there is no oil seepage or leakage point, which reduces the maintenance task while effectively ensuring the normal operation of the equipment.

[0028] In the above structure, the gearbox body (not shown in the figure) and the engine body (not shown in the figure) are not existing mechanical equipment and will not be described in detail. The oil inlet pipe and oil outlet pipe connecting the output end and input end of the oil guide pipe 3 to the gearbox body are both obtained by cutting off the original gearbox oil inlet pipe and remaking the oil outlet and oil inlet joints, and then connecting them respectively through the output end and input end of the oil guide pipe 3, so as to guide the oil inside the gearbox body and dissipate heat for it.

[0029] Furthermore, the engine main body downpipe is an existing technical structure. The downpipe is an important component of the engine cooling and heat dissipation system. The main working principle of the downpipe is to guide the cooling water to flow out of the engine, and then introduce it into the radiator, and then the cooling water carrying heat is dissipated through the radiator. In the present utility model, the engine downpipe is cut off and modified and provided with a water inlet and a water outlet, so that it is connected to the output end and the input end of the cooling pipe 4, so that the cooling water flows in the cooling pipe 4, and the cooling water can reduce the temperature inside the radiator box 1, and better exchange heat with the heat dissipated by the oil guide pipe 3.

[0030] Reference Figure 5-6 As shown, further, in order to enhance the heat dissipation effect of the heat sink 1, air-permeable plates 5 with ventilation holes 6 are provided on both sides of the heat sink 1. The positions of the ventilation holes 6 on the air-permeable plates 5 on both sides correspond to the input and output ends of the air chamber 7 respectively. The outside air enters the air chamber 7 through the ventilation holes 6 and flows in the air chamber 7, thereby taking away the heat on the heat sink 2 and increasing the heat exchange effect between the oil guide pipe 3 and the cooling pipe 4.

[0031] Furthermore, when the vehicle is driving, the flow rate of the external air varies greatly, so the air flow in the ventilation hole 6 is unstable, and a wind gathering plate 8 is connected to the ventilation hole 6 on the air permeable plate 5. One end of the wind gathering plate 8 extends obliquely from the ventilation hole 6 to the front of the vehicle. When the flowing air passes through the wind gathering plate 8, it is blocked by the wind gathering plate 8, and then accelerated along the wind gathering plate 8 into the ventilation hole 6. Therefore, the wind gathering plate 8 is used to increase the air flow at the ventilation hole 6, and thus also increases the air flow inside the air chamber 7.

[0032] Reference Figure 6 As shown, a protective net 9 is connected to the side surface of the air-permeable plate 5 close to the inside of the heat sink 1. Affected by the working environment of the vehicle, a protective net 9 is set at the position of the ventilation hole 6 of the air-permeable plate 5, which can effectively prevent large particles from entering the inside of the heat sink 1 and reduce the impact of impurities on the heat sink 1.

[0033] Reference Figure 2 As shown, further, a protective cover 10 is provided on the outer surface of one end of the heat sink 1 where the oil guide pipe 3 and the cooling pipe 4 extend, and a slot 11 for heat dissipation is opened on the protective cover 10 to reduce the heat of the pipe wall of the oil guide pipe 3 and the cooling pipe 4 so that it can be dissipated. Because the oil guide pipe 3 and the cooling pipe 4 are both suspended on the vehicle frame without protection, some large particles of material will be ejected onto the vehicle body when the vehicle is transporting, and it is very likely to hit the oil guide pipe 3 and the cooling pipe 4, thereby damaging the pipe wall assembly of the oil guide pipe 3 and the cooling pipe 4, so the protective cover 10 on the oil guide pipe 3 and the cooling pipe 4 can effectively prevent the impact of these materials.

[0034] Reference Figure 1 As shown, further, in order to install the heat sink 1 on the vehicle, a fixing plate 12 and a fixing plate 2 13 are provided on the heat sink 1, and the fixing plate 12 is connected to the vehicle frame. The heat sink 1 is fixed between the fixing plate 12 and the fixing plate 2 13 by a number of threaded rods 14, and the heat sink 1 is installed at the position of the vehicle frame.

Claims

1. A gearbox oil cooling device, characterized in that: include: A heat dissipation box (1), wherein a plurality of heat dissipation fins (2) are provided inside the heat dissipation box (1); An oil guide pipe (3), the oil guide pipe (3) being located inside the heat sink (1) and in contact with a plurality of the heat sinks (2), and the oil guide pipe (3) being used to circulate the oil inside the gearbox body and transfer the heat of the oil to the heat sinks (2); A cooling pipe (4), the cooling pipe (4) is located inside the heat dissipation box (1) and is in contact with a plurality of the heat dissipation fins (2), and the cooling pipe (4) is used to circulate cooling water and cool the heat dissipation fins (2).

2. The transmission oil cooling device according to claim 1, characterized in that: The output end and input end of the oil guide pipe (3) are respectively connected to the oil inlet pipe and the oil outlet pipe of the gearbox body, and the output end and input end of the cooling pipe (4) are respectively connected to the water inlet and the water outlet of the water pipe under the engine body.

3. The transmission oil cooling device according to claim 1, characterized in that: Both sides of the heat dissipation box (1) are provided with air-permeable plates (5) with ventilation holes (6), and an air chamber (7) is formed between two adjacent heat dissipation fins (2). The positions of the ventilation holes (6) on the air-permeable plates (5) on both sides correspond to the positions of the input end and the output end of the air chamber (7).

4. The transmission oil cooling device according to claim 3, characterized in that: An air gathering plate (8) is connected to the position of the ventilation hole (6) on the air permeable plate (5), and one end of the air gathering plate (8) extends obliquely from the position of the ventilation hole (6) toward the front of the vehicle. The air gathering plate (8) is used to increase the air flow at the position of the ventilation hole (6).

5. The transmission oil cooling device according to claim 3, characterized in that: A protective net (9) is connected to the side surface of the air permeable plate (5) close to the interior of the heat dissipation box (1).

6. The transmission oil cooling device according to claim 1, characterized in that: A protective cover (10) is provided on the outer surface of one end of the heat dissipation box (1) where the oil guide pipe (3) and the cooling pipe (4) extend, and slots (11) for heat dissipation are provided on the protective cover (10).

7. The transmission oil cooling device according to claim 1, characterized in that: The heat dissipation box (1) is provided with a fixing plate 1 (12) and a fixing plate 2 (13), the fixing plate 1 (12) is connected to the vehicle frame, and the heat dissipation box (1) is fixed between the fixing plate 1 (12) and the fixing plate 2 (13) via a plurality of threaded rods (14).

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