Wind power gear box with efficient heat dissipation function

Abstract

The utility model relates to the technical field of wind power equipment, in particular to an efficient heat dissipation wind power gear box which comprises a box body, an oil box is arranged in the box body and communicated with an oil pipe, and a first heat dissipation mechanism and a second heat dissipation mechanism are arranged on the box body. The first heat dissipation mechanism comprises a plurality of heat dissipation bodies, each heat dissipation body is fixedly connected to the oil box, one end of each heat dissipation body extends into the oil box to be in contact with lubricating oil in the oil box, and the other end of each heat dissipation body penetrates through the box body; the second heat dissipation mechanism comprises a conduction piece arranged at the bottom of the oil box, the conduction piece is fixedly connected with a heat pipe, the heat pipe penetrates through the box body, and a plurality of parallel fins are fixedly arranged in the length direction of the heat pipe. The first heat dissipation mechanism is mainly used for conducting heat in the oil box to the outside of the box body through a heat dissipation body in a heat conduction manner so as to exchange heat with air; the second heat dissipation mechanism conducts heat in the oil box to the fins mainly in a heat conduction and heat convection combined mode.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power equipment, and particularly relates to a wind power gearbox with efficient heat dissipation. Background Art

[0002] A wind power gearbox is a transmission structure installed at the top of a wind power generation device. Since the fan blades of the wind power generation device rotate at a low speed during actual use to ensure safety, a gearbox needs to be installed between them to drive the generator to rotate at a high speed for power generation. During the operation of the wind power generation device, the high-speed rotation of the gears in the gearbox generates a lot of heat, resulting in an increase in the temperature of the lubricating oil and the gearbox. If the heat cannot be effectively dissipated, it will affect the power generation capacity of the fan and reduce its service life.

[0003] Air-cooled heat exchange is a currently widely used heat dissipation method for gearboxes. However, due to its limited heat exchange capacity, the oil temperature is prone to overheating when the external environment is relatively harsh. In addition, due to the limited space in the nacelle, it is impossible to increase the heat exchange efficiency by increasing the heat exchange area in large quantities, and the nacelle space also limits the heat dissipation method of liquid cooling. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wind power gearbox with efficient heat dissipation to solve the above deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wind power gearbox with efficient heat dissipation includes a box body. An oil box is arranged in the box body. The oil box is communicated with an oil pipe. A first heat dissipation mechanism and a second heat dissipation mechanism are respectively arranged on the box body. The first heat dissipation mechanism includes a plurality of heat dissipation bodies. Each heat dissipation body is fixedly connected to the oil box. One end of the heat dissipation body extends into the oil box to contact the lubricating oil in the oil box, and the other end passes through the box body. The second heat dissipation mechanism includes a conduction sheet arranged at the bottom of the oil box. A heat pipe is fixedly connected to the conduction sheet. The heat pipe passes through the box body, and a plurality of parallel fins are fixedly arranged in its length direction.

[0007] Furthermore, it further includes a shielding component. The shielding component includes a cover plate slidably connected to the box body. A baffle is also fixedly arranged on the box body. The baffle is respectively arranged on both sides of the cover plate. The cover plate is driven by a driving part arranged in the box body. The cover plate is arc-shaped.

[0008] Furthermore, two fixing plates are fixedly arranged on the box body. Two sliding plates are arranged at both ends of the cover plate. The sliding plates are slidably connected to the corresponding fixing plates, and the fixing plates are arranged inside the cover plate.

[0009] Further, the driving part includes a horizontal pipe fixedly arranged inside the box body. A push rod is slidably connected inside the horizontal pipe. A connecting plate is fixedly connected to the push rod. The connecting plate passes through the box body and is fixedly connected to the cover body. The horizontal pipe is filled with a thermosensitive liquid.

[0010] Further, a fan is installed on the box body, and the fan faces the second heat dissipation mechanism.

[0011] Further, the heat dissipation body is arranged in a cylindrical shape.

[0012] Further, the conduction sheet is made of copper, and the heat dissipation body and the fins are made of aluminum.

[0013] In the above technical solution, the beneficial effects of an efficient heat dissipation wind power gearbox provided by the present utility model are as follows:

[0014] By providing the first heat dissipation mechanism and the second heat dissipation mechanism, compared with the traditional air-cooled heat dissipation, two heat dissipation mechanisms work simultaneously. The first heat dissipation mechanism mainly transfers the heat in the oil box to the outside of the box body through heat conduction by the heat dissipation body and exchanges heat with the air. The second heat dissipation mechanism mainly combines heat conduction and heat convection, transfers the heat in the oil box to the fins through the conduction sheet and the heat pipe, and exchanges heat with the air outside the box body. The present utility model is mainly arranged on the outer side of the box body, reducing the occupation of the internal space of the box body, and the two heat dissipation mechanisms jointly dissipate heat, improving the heat dissipation effect.

[0015] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0016] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and does not represent the full scope of the disclosed technology or a comprehensive disclosure of all features. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structures of the first heat dissipation mechanism and the second heat dissipation mechanism provided by an embodiment of the present utility model Figure 1 ;

[0020] Figure 3Schematic structural diagram of the first heat dissipation mechanism and the second heat dissipation mechanism provided by the embodiments of the present utility model Figure 2 ;

[0021] Figure 4 Schematic structural diagram of the driving part provided by the embodiments of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Box body; 11. Oil box; 2. First heat dissipation mechanism; 21. Heat dissipation body; 3. Second heat dissipation mechanism; 31. Conductive sheet; 32. Heat pipe; 33. Fin; 34. Fan; 41. Cover plate; 42. Baffle; 43. Fixed plate; 44. Slide plate; 51. Horizontal pipe; 52. Push rod; 53. Connecting plate. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0025] Please refer to Figures 1-4 , a wind power gearbox with efficient heat dissipation, including a box body 1, an oil box 11 is arranged inside the box body 1, the oil box 11 is communicated with an oil pipe, and a first heat dissipation mechanism 2 and a second heat dissipation mechanism 3 are respectively arranged on the box body 1; the first heat dissipation mechanism 2 includes a plurality of heat dissipation bodies 21, each heat dissipation body 21 is fixedly connected to the oil box 11, one end of the heat dissipation body 21 extends into the oil box 11 to contact the lubricating oil inside the oil box 11, and the other end passes through the box body 1; the second heat dissipation mechanism 3 includes a conductive sheet 31 arranged at the bottom of the oil box 11, a heat pipe 32 is fixedly connected to the conductive sheet 31, the heat pipe 32 passes through the box body 1, and a plurality of parallel fins 33 are fixedly arranged in its length direction.

[0026] By providing the first heat dissipation mechanism 2 and the second heat dissipation mechanism 3, compared with the traditional air-cooled heat dissipation, two heat dissipation mechanisms are set to work simultaneously. And the first heat dissipation mechanism 2 mainly transfers the heat in the oil box 11 to the outside of the box body 1 through the heat dissipation body 21 by heat conduction and exchanges heat with the air; the second heat dissipation mechanism 3 mainly combines heat conduction and heat convection to transfer the heat in the oil box 11 to the fins 33 through the conductive sheet 31 and the heat pipe 32 and exchanges heat with the air outside the box body 1. The present utility model is mainly arranged on the outside of the box body 1, reducing the occupation of the internal space of the box body 1, and the two heat dissipation mechanisms dissipate heat together, improving the heat dissipation effect.

[0027] Further, it further includes an occlusion component. The occlusion component includes a cover plate 41 slidably connected to the box body 1. A baffle plate 42 is fixedly arranged on the box body 1. The baffle plate 42 is respectively arranged on both sides of the cover plate 41. The cover plate 41 is driven by a driving part arranged in the box body 1, and the cover plate 41 is arc-shaped. The cover plate 41 is used for rain protection to prevent the first heat dissipation mechanism 2 and the second heat dissipation mechanism 3 from being eroded by rainwater.

[0028] Further, two fixing plates 43 are fixedly arranged on the box body 1. Two sliding plates 44 are arranged at both ends of the cover plate 41. The sliding plates 44 are slidably connected to the corresponding fixing plates 43, and the fixing plates 43 are arranged inside the cover plate 41. To prevent external rainwater from entering the inside of the cover plate 41.

[0029] Further, the driving part includes a horizontal tube 51 fixedly arranged in the box body 1. A push rod 52 is slidably connected in the horizontal tube 51. A connecting plate 53 is fixedly connected to the push rod 52. The connecting plate 53 passes through the box body 1 and is fixedly connected to the cover body. A thermosensitive liquid is contained in the horizontal tube 51. When the temperature inside the box body 1 rises (hot air will gather above the inside of the box body 1), the thermosensitive liquid expands due to heat, and drives the cover plate 41 to move through the push rod 52 and the connecting plate 53 to expose the first heat dissipation mechanism 2 and the second heat dissipation mechanism 3, increasing the heat dissipation effect. The driving part can also be realized by a temperature sensor cooperating with an electric telescopic rod to facilitate manual operation to open the cover plate 41.

[0030] Further, a fan 34 is installed on the box body 1, and the fan 34 faces the second heat dissipation mechanism 3. The fan 34 can forcibly take away the heat on the fins 33 through the way of heat convection, improving the heat dissipation effect. In addition, the first heat dissipation mechanism 2 and the second heat dissipation mechanism 3 are arranged in the central axis direction of the fan 34, so that the fan 34 can also assist in taking away the heat on the first heat dissipation mechanism 2.

[0031] Further, the heat dissipation body 21 is cylindrical. For the cylindrical heat dissipation body 21, the resistance of the fluid is small, the fluid is easy to flow, and thus it is easy to take away the heat on the cylinder, strengthening the convection effect.

[0032] Further, the conduction sheet 31 is made of copper, and the heat dissipation body 21 and the fins 33 are made of aluminum.

[0033] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An efficient heat dissipation wind power gearbox, characterized in that: It includes a box body (1), an oil box (11) is arranged inside the box body (1), the oil box (11) is communicated with an oil pipe, and a first heat dissipation mechanism (2) and a second heat dissipation mechanism (3) are respectively arranged on the box body (1); The first heat dissipation mechanism (2) includes a plurality of heat dissipation bodies (21), each of the heat dissipation bodies (21) is fixedly connected to the oil box (11), one end of the heat dissipation body (21) extends into the oil box (11) to contact the lubricating oil in the oil box (11), and the other end passes through the box body (1); The second heat dissipation mechanism (3) includes a conduction sheet (31) arranged at the bottom of the oil box (11), a heat pipe (32) is fixedly connected to the conduction sheet (31), the heat pipe (32) passes through the box body (1), and a plurality of parallel fins (33) are fixedly arranged in its length direction.

2. The high-efficiency heat-dissipating wind power gearbox according to claim 1, wherein It further includes a shielding assembly, the shielding assembly includes a cover plate (41) slidably connected to the box body (1), a baffle (42) is also fixedly arranged on the box body (1), the baffle (42) is respectively arranged on both sides of the cover plate (41), and the cover plate (41) is driven by a driving part arranged inside the box body (1), and the cover plate (41) is arc-shaped.

3. The high-efficiency heat-dissipating wind power gearbox according to claim 2, wherein, Two fixing plates (43) are fixedly arranged on the box body (1), two sliding plates (44) are arranged at both ends of the cover plate (41), the sliding plates (44) are slidably connected to the corresponding fixing plates (43), and the fixing plates (43) are arranged inside the cover plate (41).

4. An efficient heat dissipation wind power gearbox according to claim 2, characterized in that, The driving part includes a horizontal pipe (51) fixedly arranged inside the box body (1), a push rod (52) is slidably connected inside the horizontal pipe (51), a connecting plate (53) is fixedly connected to the push rod (52), the connecting plate (53) passes through the box body (1) and is fixedly connected to the cover body, and a thermosensitive liquid is contained in the horizontal pipe (51).

5. An efficient heat dissipation wind power gearbox according to claim 2, characterized in that, A fan (34) is installed on the box body (1), and the fan (34) faces the second heat dissipation mechanism (3).

6. The high-efficiency heat-dissipating wind power gearbox according to claim 1, wherein The heat dissipation body (21) is cylindrical.

7. An efficient heat dissipation wind power gearbox according to claim 1, characterized in that, The conduction sheet (31) is made of copper, and the heat dissipation body (21) and the fins (33) are made of aluminum.

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