A hydraulic oil return heat dissipation mechanism for tractors

Abstract

The utility model relates to the technical field of hydraulic systems, and discloses a hydraulic oil return heat dissipation mechanism for tractors, comprising a box body, a hydraulic oil tank is fixedly connected to the inner wall of the box body, an air inlet is opened inside the box body, air permeable plates are fixedly connected to both sides of the inner wall of the box body, dust filter plates are fixedly connected to both sides of the inner wall of the box body, sound-absorbing rubber pads are fixedly connected to both sides of the inner wall of the box body, a heat generator is fixedly connected to the outer wall of the hydraulic oil tank, a first rotating shaft is fixedly connected to the output end of the heat generator, and a heat dissipation fan is fixedly connected to one end of the first rotating shaft. In the utility model, through the mutual cooperation of the heat dissipation fan, the heat dissipation fins and the turbine, the problems of high oil return temperature and high oil return pressure of the mechanism when working, which easily lead to pipeline explosion, and high energy consumption and increased cost of water-cooled heat dissipation are solved, so as to achieve the effect of improving the heat dissipation efficiency and use safety of the mechanism while reducing the heat dissipation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic systems, in particular to a hydraulic oil return heat dissipation mechanism for a tractor. Background Art

[0002] A tractor is a self-propelled power machine used to tow and drive operating machinery to complete various mobile operations. It is mainly used to tow agricultural machinery for agricultural production. It is suitable for large-scale farming and has high production efficiency. It improves the level of agricultural production and reduces the labor intensity of farmers. When the tractor is running, hydraulic oil return is required to circulate and cool the hydraulic oil, and thus a hydraulic oil return heat dissipation mechanism for the tractor is needed.

[0003] In the prior art, when the hydraulic oil return heat dissipation mechanism is in use, the high-temperature hydraulic oil will flow from the hydraulic tool back into the hydraulic oil tank in the mechanism. After being cooled by water in the hydraulic oil tank, the high-temperature hydraulic oil will be supplied to the hydraulic tool again. This cycle will cool the lubricating oil, thereby preventing the hydraulic oil from overheating and damaging the hydraulic tool in the tractor.

[0004] With regard to the existing technology, most hydraulic oil return heat dissipation mechanisms have a high oil return temperature and a high oil return pressure when working, which can easily lead to pipeline explosion; at the same time, the water-cooled heat dissipation method consumes a lot of energy and increases costs, so it cannot meet the use requirements. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a hydraulic oil return heat dissipation mechanism for a tractor, aiming to improve the problem that the hydraulic oil return heat dissipation mechanism in the prior art has a high oil return temperature and a high oil return pressure when working, which easily leads to pipeline explosion; at the same time, the water-cooled heat dissipation method has high energy consumption and increases costs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic oil return heat dissipation mechanism for a tractor, comprising a box body, a hydraulic oil tank is fixedly connected to the inner wall of the box body, an air inlet is opened inside the box body, air permeable plates are fixedly connected to both sides of the inner wall of the box body, dust filter plates are fixedly connected to both sides of the inner wall of the box body, sound-absorbing rubber pads are fixedly connected to both sides of the inner wall of the box body, a heat generator is fixedly connected to the outer wall of the hydraulic oil tank, a first rotating shaft is fixedly connected to the output end of the heat generator, and a heat dissipation fan is fixedly connected to one end of the first rotating shaft.

[0007] Furthermore, an oil inlet pipe is fixedly connected to the upper surface of the hydraulic oil tank, and a first gate valve is fixedly connected to the upper surface of the oil inlet pipe.

[0008] Furthermore, an oil outlet pipe is fixedly connected to the outer wall of the hydraulic oil tank, and a second gate valve is fixedly connected to the upper surface of the oil outlet pipe.

[0009] Furthermore, one end of the oil inlet pipe is fixedly connected to a sprayer, and the outer wall of the sprayer is fixedly connected to a spray head.

[0010] Furthermore, heat conducting plates are fixedly connected to both sides of the outer wall of the hydraulic oil tank, and heat dissipation fins are fixedly connected to the outer wall of the heat conducting plate.

[0011] Furthermore, a chamber is provided inside the hydraulic oil tank, and an oil outlet is provided inside the hydraulic oil tank.

[0012] Furthermore, a positioning block is fixedly connected to the inner wall of the hydraulic oil tank, and a circulating condenser is fixedly connected to the inner wall of the hydraulic oil tank.

[0013] Furthermore, the outer wall of the positioning block is rotatably connected to a second rotating shaft, and the outer wall of the second rotating shaft is fixedly connected to a turbine.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by opening the first gate valve, the hydraulic oil is allowed to enter the hydraulic oil tank through the oil inlet pipe, and is transported to the sprayer and sprayed from the spray head, so that a tangential force is formed between the hydraulic oil tank and the turbine to act on the turbine, so that the turbine rotates around the second rotating shaft, and the hydraulic oil is sprayed into the chamber in the hydraulic oil tank, thereby solving the problem that when the hydraulic oil return heat dissipation mechanism is working, the return oil temperature is high and the return oil pressure is large, which easily leads to pipeline explosion, thereby consuming the pressure of the hydraulic oil and achieving the effect of improving the safety of use.

[0016] 2. In the utility model, by spraying high-temperature hydraulic oil into the chamber in the hydraulic oil tank, the heat is transferred to the heat conduction plate through the surface of the hydraulic oil tank and then to the heat dissipation fins. The air flowing through the air inlet takes away the heat on the heat dissipation fins. At the same time, the heat is transferred to the heat generator through the surface of the hydraulic oil tank to convert the heat energy into electrical energy, so that the heat generator drives the first rotating shaft and the heat dissipation fan to rotate, dissipates the heat inside the box, and then reduces the surface temperature of the hydraulic oil tank, thereby solving the problem of high energy consumption and increased cost of the water-cooled heat dissipation method, thereby achieving the effect of improving the heat dissipation efficiency of the mechanism and reducing the heat dissipation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a hydraulic oil return heat dissipation mechanism for a tractor proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the box structure of a hydraulic oil return heat dissipation mechanism for a tractor proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a hydraulic oil tank portion of a hydraulic oil return and heat dissipation mechanism for a tractor proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the internal structure of a hydraulic oil tank of a hydraulic oil return and heat dissipation mechanism for a tractor.

[0021] Legend:

[0022] 1. Box body; 2. Hydraulic oil tank; 3. Oil inlet pipe; 4. First gate valve; 5. Oil outlet pipe; 6. Second gate valve; 7. Breathable plate; 8. Sound-absorbing rubber pad; 9. Thermal generator; 10. First rotating shaft; 11. Cooling fan; 12. Air inlet; 13. Dust filter plate; 14. Heat conduction plate; 15. Cooling fins; 16. Circulating condenser; 17. Oil outlet; 18. Chamber; 19. Sprinkler; 20. Nozzle; 21. Positioning block; 22. Second rotating shaft; 23. Turbine. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a hydraulic oil return heat dissipation mechanism for a tractor, comprising a box body 1, a hydraulic oil tank 2 is fixedly connected to the inner wall of the box body 1, an air inlet 12 is opened inside the box body 1, air permeable plates 7 are fixedly connected to both sides of the inner wall of the box body 1, dust filter plates 13 are fixedly connected to both sides of the inner wall of the box body 1, sound-absorbing rubber pads 8 are fixedly connected to both sides of the inner wall of the box body 1, a heat generator 9 is fixedly connected to the outer wall of the hydraulic oil tank 2, a first rotating shaft 10 is fixedly connected to the output end of the heat generator 9, and a heat dissipation fan 11 is fixedly connected to one end of the first rotating shaft 10.

[0025] Specifically, the interior of the box 1 can be ventilated by setting the air inlet 12; the air permeable plate 7 can effectively block the soil blocks brought up by the tractor during operation; the dust filter plate 13 can effectively filter dust and small solid particles in the air, prevent dust from entering the interior of the box 1 and adhering to the heat conduction plate 14 and the heat dissipation fins 15, thereby increasing their service life; the sound-absorbing rubber pad 8 can absorb part of the noise generated by the mechanism during operation, achieving a good noise reduction effect; the heat on the surface of the hydraulic oil tank 2 can be transferred to the thermal generator 9 to convert the heat energy into electrical energy, so that the output end of the thermal generator 9 drives the first rotating shaft 10 to rotate, thereby driving the cooling fan 11 to rotate, dissipating the heat inside the box 1, and then reducing the surface temperature of the hydraulic oil tank 2, realizing the reuse of heat, and improving the practicality of the mechanism.

[0026] Reference Figure 3 and Figure 4 An oil inlet pipe 3 is fixedly connected to the upper surface of the hydraulic oil tank 2, a first gate valve 4 is fixedly connected to the upper surface of the oil inlet pipe 3, an oil outlet pipe 5 is fixedly connected to the outer wall of the hydraulic oil tank 2, a second gate valve 6 is fixedly connected to the upper surface of the oil outlet pipe 5, a sprayer 19 is fixedly connected to one end of the oil inlet pipe 3, a nozzle 20 is fixedly connected to the outer wall of the sprayer 19, heat conducting plates 14 are fixedly connected to both sides of the outer wall of the hydraulic oil tank 2, cooling fins 15 are fixedly connected to the outer wall of the heat conducting plate 14, a chamber 18 is opened inside the hydraulic oil tank 2, an oil outlet 17 is opened inside the hydraulic oil tank 2, a positioning block 21 is fixedly connected to the inner wall of the hydraulic oil tank 2, a circulating condenser 16 is fixedly connected to the inner wall of the hydraulic oil tank 2, a second rotating shaft 22 is rotatably connected to the outer wall of the positioning block 21, and a turbine 23 is fixedly connected to the outer wall of the second rotating shaft 22.

[0027] Specifically, by setting the first gate valve 4 and the second gate valve 6, the flow rates of the oil inlet pipe 3 and the oil outlet pipe 5 can be adjusted respectively to prevent the flow rate from being too fast and causing an increase in heat, resulting in excessive pressure and bursting the oil inlet pipe 3 and the oil outlet pipe 5, thereby reducing the safety hazards in use; by opening the first gate valve 4, the hydraulic oil enters the hydraulic oil tank 2 through the oil inlet pipe 3, and is sprayed out by the nozzle 20 through the sprayer 19, forming a tangential force between the hydraulic oil tank 2 and the turbine 23, so that the turbine 23 rotates around the second rotating shaft 22, and the high-temperature hydraulic oil is sprayed into the chamber 18 in the hydraulic oil tank 2, which can increase the contact area between the high-temperature hydraulic oil and the chamber 18, thereby making the heat more dispersed and further improving the safety of the mechanism; the heat is transferred to the heat conducting plate 14 through the surface of the hydraulic oil tank 2, and the heat conducting plate 14 transfers the heat to the heat dissipating fins 15, and the air flowing through the air inlet 12 on the hydraulic oil tank 2 takes away the heat on the heat dissipating fins 15, thereby completing the heat dissipation of the mechanism.

[0028] Working principle: When the mechanism is working, first open the first gate valve 4 to allow the hydraulic oil to enter the hydraulic oil tank 2 through the oil inlet pipe 3. The high-pressure hydraulic oil is transported to the sprayer 19 and sprayed out by the spray head 20, forming a tangential force between the hydraulic oil tank 2 and the turbine 23. The turbine 23 rotates around the second rotating shaft 22, spraying the high-temperature hydraulic oil into the chamber 18 in the hydraulic oil tank 2. The heat is transferred to the heat conduction plate 14 through the surface of the hydraulic oil tank 2. The heat conduction plate 14 transfers the heat to the heat dissipation fins 15, and the heat is dissipated by the liquid. The air flowing through the air inlet 12 on the hydraulic oil tank 2 takes away the heat from the cooling fins 15, and at the same time, the heat is transferred to the thermal generator 9 through the surface of the hydraulic oil tank 2, thereby converting the thermal energy into electrical energy, so that the output end of the thermal generator 9 drives the first rotating shaft 10 to rotate, thereby driving the cooling fan 11 to rotate, dissipating the heat inside the box body 1, and thus reducing the surface temperature of the hydraulic oil tank 2, and the circulating condenser 16 inside the hydraulic oil tank 2 will further cool the hydraulic oil, and the second gate valve 6 can be opened to allow the cooled hydraulic oil to flow out from the oil outlet pipe 5.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A hydraulic oil return heat dissipation mechanism for a tractor, comprising a housing (1), characterized in that: The inner wall of the box body (1) is fixedly connected to a hydraulic oil tank (2); an air inlet (12) is provided inside the box body (1); air permeable plates (7) are fixedly connected to both sides of the inner wall of the box body (1); dust filter plates (13) are fixedly connected to both sides of the inner wall of the box body (1); sound-absorbing rubber pads (8) are fixedly connected to both sides of the inner wall of the box body (1); the outer wall of the hydraulic oil tank (2) is fixedly connected to a thermal generator (9); an output end of the thermal generator (9) is fixedly connected to a first rotating shaft (10); and one end of the first rotating shaft (10) is fixedly connected to a cooling fan (11).

2. A hydraulic oil return heat dissipation mechanism for a tractor according to claim 1, characterized in that: An oil inlet pipe (3) is fixedly connected to the upper surface of the hydraulic oil tank (2), and a first gate valve (4) is fixedly connected to the upper surface of the oil inlet pipe (3).

3. A hydraulic oil return heat dissipation mechanism for a tractor according to claim 2, characterized in that: An oil outlet pipe (5) is fixedly connected to the outer wall of the hydraulic oil tank (2), and a second gate valve (6) is fixedly connected to the upper surface of the oil outlet pipe (5).

4. A hydraulic oil return heat dissipation mechanism for a tractor according to claim 3, characterized in that: One end of the oil inlet pipe (3) is fixedly connected to a sprayer (19), and the outer wall of the sprayer (19) is fixedly connected to a spray head (20).

5. A hydraulic oil return heat dissipation mechanism for a tractor according to claim 4, characterized in that: Heat conducting plates (14) are fixedly connected to both sides of the outer wall of the hydraulic oil tank (2), and heat dissipation fins (15) are fixedly connected to the outer wall of the heat conducting plate (14).

6. A hydraulic oil return heat dissipation mechanism for a tractor according to claim 5, characterized in that: The hydraulic oil tank (2) has a chamber (18) inside, and the hydraulic oil tank (2) has an oil outlet (17) inside.

7. A hydraulic oil return heat dissipation mechanism for a tractor according to claim 6, characterized in that: A positioning block (21) is fixedly connected to the inner wall of the hydraulic oil tank (2), and a circulating condenser pipe (16) is fixedly connected to the inner wall of the hydraulic oil tank (2).

8. The hydraulic oil return heat dissipation mechanism for a tractor according to claim 7, characterized in that: The outer wall of the positioning block (21) is rotatably connected to a second rotating shaft (22), and the outer wall of the second rotating shaft (22) is fixedly connected to a turbine (23).

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