Gearbox heat dissipation structure

Abstract

The utility model discloses a gearbox heat dissipation structure which comprises a gearbox body, a heat conduction column and a shell, an adhesion layer is fixedly installed on the outer side of the shell, a refrigeration piece is arranged on the outer side of the adhesion layer, a left connecting rod is fixedly installed on the left side of the shell, and an air inlet cover is fixedly installed at the left end of the left connecting rod. A left blocking net is fixedly installed on the inner wall of the air inlet cover, a right connecting rod is fixedly installed on the right side of the shell, an air outlet cover is fixedly installed at the right end of the right connecting rod, and a right blocking net is fixedly installed on the inner wall of the air outlet cover. The main shaft, the left fan and the right fan are used in cooperation to accelerate the air circulation speed between the gear box and the shell and accelerate the heat dissipation speed of the gear box, the refrigeration piece, the shell and the heat conduction column are used in cooperation to promote heat on the gear box to be transmitted to the shell, a cold and heat comprehensive phenomenon occurs on the shell, and the effect of reducing the temperature of the gear box is achieved. The heat dissipation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of gear boxes for power systems, in particular to a heat dissipation structure of a gear box. Background Art

[0002] A wind farm refers to a place where wind power is generated. Wind power is a renewable, pollution-free, high-energy and promising energy source. Wind farms mainly generate electricity with wind turbines. Wind turbines contain many components, and the gearbox is one of them. It can transmit power, increasing the speed of the blades through the gearbox so that the speed reaches the rated speed of the generator, so that the generator can generate power normally. However, the gearbox will generate heat when working, so a heat dissipation structure needs to be installed at the gearbox.

[0003] For example, the wind turbine gearbox cooling system with authorization announcement number CN 204664374 U, the utility model belongs to the field of wind power, and in particular relates to a wind turbine gearbox cooling system, including an oil cooling radiator. The utility model prevents the oil cooling radiator from being blocked due to the blockage of the cooling holes, which leads to a decrease in the cooling capacity of the system and limited power operation, thereby improving the power generation efficiency of the wind turbine.

[0004] However, there are still some problems in the use of the gearbox heat dissipation system mentioned above. For example, when the gearbox is cooled by an oil-cooled radiator, the lubricating oil in the radiator will transfer the heat to the inner wall of the gearbox, and the inner wall of the gearbox will transfer the heat to the outer wall, and then transfer the heat to the air through the outer wall of the gearbox. During the heat transfer process, due to the low heat transfer coefficients of liquid and solid heat transfer, and non-metal and gas heat transfer, and the gearbox is installed inside the wind turbine generator set, the gearbox is only cooled by the circulation of the lubricating oil inside the oil-cooled radiator, and the efficiency is relatively low. Therefore, we propose a new type of gearbox heat dissipation structure. Summary of the invention

[0005] The utility model provides a gear box heat dissipation structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gear box heat dissipation structure comprises a gear box body, a heat conducting column is fixedly installed on the outer side of the gear box body, a shell is fixedly installed on the upper end of the heat conducting column, an adhesive layer is fixedly installed on the outer side of the shell, a refrigeration plate is arranged on the outer side of the adhesive layer, a left connecting rod is fixedly installed on the left side of the shell, an air inlet hood is fixedly installed on the left end of the left connecting rod, a left baffle is fixedly installed on the inner wall of the air inlet hood, a right connecting rod is fixedly installed on the right side of the shell, an air outlet hood is fixedly installed on the right end of the right connecting rod, and a right baffle is fixedly installed on the inner wall of the air outlet hood, a main shaft is rotatably connected at the center of the gear box body, a left fan is fixedly installed on the left end of the main shaft, and a right fan is fixedly installed on the right end of the main shaft.

[0008] As a further improvement of the technical solution: the heat-conducting column is located between the gear box body and the shell, wherein the heat-conducting column is made of aluminum alloy.

[0009] As a further improvement of the technical solution: the cooling plate is made of semiconductor, wherein the cooling surface of the cooling plate is close to the gear box body, and the heating surface of the cooling plate is far away from the gear box body.

[0010] As a further improvement of the technical solution: the left baffle and the right baffle are both made of stainless steel, wherein the left and right sides of the main shaft respectively penetrate the left baffle and the right baffle.

[0011] As a further improvement of the technical solution: the left fan is arranged in the air inlet cover, and the right fan is arranged in the air outlet cover, wherein the left fan is located on the right side of the left baffle net, and the right fan is located on the left side of the right baffle net.

[0012] As a further improvement of the technical solution: the diameter of the outer shell is larger than the diameter of the gear box body, wherein there is a gap between the outer shell and the gear box body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The main shaft, left fan and right fan work together to speed up the air circulation between the gear box body and the outer shell, thereby speeding up the heat dissipation of the gear box.

[0015] The cooling sheet, the housing and the heat-conducting column are used together to transfer the heat from the gear box to the housing, and a combined phenomenon of heat and cold occurs on the housing, thereby achieving the effect of quickly reducing the temperature of the gear box and achieving high heat dissipation efficiency.

[0016] The left baffle and the right baffle can protect the left fan and the right fan, preventing impurities from entering the air inlet cover and the air outlet cover and damaging the left fan and the right fan. At the same time, the air inlet cover and the air outlet cover can also prevent workers from direct contact with the left fan and the right fan, thereby improving the safety of the entire equipment.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the heat-conducting column structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the adhesion layer structure of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Gearbox body; 2. Heat-conducting column; 3. Outer shell; 4. Adhesion layer; 5. Refrigeration plate; 6. Left connecting rod; 7. Air inlet cover; 8. Left baffle; 9. Right connecting rod; 10. Air outlet cover; 11. Right baffle; 12. Main shaft; 13. Left fan; 14. Right fan. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] See also Figures 1 to 3 In the embodiment of the utility model, a gearbox heat dissipation structure includes a gearbox body 1, a heat-conducting column 2 is fixedly installed on the outer side of the gearbox body 1, a shell 3 is fixedly installed on the upper end of the heat-conducting column 2, an adhesive layer 4 is fixedly installed on the outer side of the shell 3, a refrigeration plate 5 is arranged on the outer side of the adhesive layer 4, a left connecting rod 6 is fixedly installed on the left side of the shell 3, an air inlet cover 7 is fixedly installed on the left end of the left connecting rod 6, a left baffle 8 is fixedly installed on the inner wall of the air inlet cover 7, a right connecting rod 9 is fixedly installed on the right side of the shell 3, an air outlet cover 10 is fixedly installed on the right end of the right connecting rod 9, and a right baffle 11 is fixedly installed on the inner wall of the air outlet cover 10, a main shaft 12 is rotatably connected at the center of the gearbox body 1, a left fan 13 is fixedly installed on the left end of the main shaft 12, and a right fan 14 is fixedly installed on the right end of the main shaft 12.

[0028] See also Figure 1-3 The heat-conducting column 2 is located between the gear box body 1 and the shell 3, wherein the heat-conducting column 2 is made of aluminum alloy. The heat-conducting column 2 made of aluminum alloy has good thermal conductivity, which can facilitate the heat on the gear box body 1 to be transferred to the shell 3 for heat dissipation.

[0029] See also Figure 1-3 The cooling plate 5 is made of semiconductor, wherein the cooling surface of the cooling plate 5 is close to the gear box body 1, and the heating surface of the cooling plate 5 is far away from the gear box body 1. The cooling surface of the cooling plate 5 relies on the heat transfer principle to assist the gear box body 1 in heat dissipation.

[0030] See also Figure 1-3 The left baffle net 8 and the right baffle net 11 are both made of stainless steel material, wherein the left and right sides of the main shaft 12 respectively penetrate the left baffle net 8 and the right baffle net 11. The left baffle net 8 and the right baffle net 11 made of stainless steel material have the characteristics of corrosion resistance and oxidation resistance, which can effectively improve the service life of the left baffle net 8 and the right baffle net 11.

[0031] See also Figure 1-3The left fan 13 is arranged in the air inlet cover 7, and the right fan 14 is arranged in the air outlet cover 10, wherein the left fan 13 is located on the right side of the left baffle 8, and the right fan 14 is located on the left side of the right baffle 11. The left baffle 8 and the right baffle 11 can protect the left fan 13 and the right fan 14 to prevent impurities from entering the air inlet cover 7 and the air outlet cover 10 and damaging the left fan 13 and the right fan 14. At the same time, the air inlet cover 7 and the air outlet cover 10 can also prevent the staff from directly contacting the left fan 13 and the right fan 14, thereby improving the safety of the entire equipment.

[0032] See also Figure 1-3 The diameter of the shell 3 is larger than the diameter of the gear box body 1, wherein there is a gap between the shell 3 and the gear box body 1. The gap between the shell 3 and the gear box body 1 facilitates air circulation to assist the gear box body 1 in heat dissipation.

[0033] The working principle of the utility model is: when the gear box body 1 needs to dissipate heat after working for a period of time, the main shaft 12 will rotate together with the gear box body 1, and the main shaft 12 will drive the left fan 13 and the right fan 14 to rotate. The left fan 13 and the right fan 14 rotate in the same direction, which will speed up the air circulation speed between the gear box body 1 and the shell 3, thereby speeding up the heat dissipation speed of the gear box body 1, and at the same time, the cooling plate 5 is started, and the cooling plate 5 starts to work. The cooling surface of the cooling plate 5 will cool to reduce the temperature on the shell 3. At the same time, the heat on the gear box body 1, according to the heat transfer principle, the heat will be transferred from high heat to low heat, that is, the heat will be transferred from the heat conductive column 2 to the shell 3. At this time, a comprehensive phenomenon of cold and heat will occur on the shell 3, neutralizing the heat emitted from the gear box body 1, thereby achieving the effect of quickly reducing the temperature of the gear box body 1, and the heat dissipation efficiency is high.

[0034] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A gearbox heat dissipation structure, characterized in that: The invention comprises a gearbox body (1), a heat-conducting column (2) is fixedly mounted on the outer side of the gearbox body (1), a shell (3) is fixedly mounted on the upper end of the heat-conducting column (2), an adhesive layer (4) is fixedly mounted on the outer side of the shell (3), a cooling plate (5) is arranged on the outer side of the adhesive layer (4), a left connecting rod (6) is fixedly mounted on the left side of the shell (3), an air inlet cover (7) is fixedly mounted on the left end of the left connecting rod (6), a left baffle (8) is fixedly mounted on the inner wall of the air inlet cover (7), a right connecting rod (9) is fixedly mounted on the right side of the shell (3), an air outlet cover (10) is fixedly mounted on the right end of the right connecting rod (9), a right baffle (11) is fixedly mounted on the inner wall of the air outlet cover (10), a main shaft (12) is rotatably connected to the center of the gearbox body (1), a left fan (13) is fixedly mounted on the left end of the main shaft (12), and a right fan (14) is fixedly mounted on the right end of the main shaft (12).

2. A gearbox heat dissipation structure according to claim 1, characterized in that: The heat-conducting column (2) is located between the gear box body (1) and the housing (3), wherein the heat-conducting column (2) is made of aluminum alloy.

3. A gearbox heat dissipation structure according to claim 1, characterized in that: The cooling fin (5) is made of semiconductor, wherein a cooling surface of the cooling fin (5) is close to the gear box body (1), and a heating surface of the cooling fin (5) is far from the gear box body (1).

4. The gearbox heat dissipation structure according to claim 1, characterized in that: The left baffle (8) and the right baffle (11) are both made of stainless steel, wherein the left and right sides of the main shaft (12) respectively penetrate the left baffle (8) and the right baffle (11).

5. The gearbox heat dissipation structure according to claim 1, characterized in that: The left fan (13) is arranged in the air inlet cover (7), and the right fan (14) is arranged in the air outlet cover (10), wherein the left fan (13) is located on the right side of the left baffle (8), and the right fan (14) is located on the left side of the right baffle (11).

6. The gearbox heat dissipation structure according to claim 1, characterized in that: The diameter of the outer shell (3) is greater than the diameter of the gear box body (1), wherein a gap exists between the outer shell (3) and the gear box body (1).

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