Gearbox air cooling equipment

Abstract

The utility model relates to the technical field of gear boxes, and discloses a gear box air cooling device which comprises a gear box body, a driving shaft is arranged at one end of the gear box body, a driven shaft is arranged at the other end of the gear box body, ventilation holes are formed in the two ends of the gear box body, and wind scoopers are arranged at the two ends of the gear box body. A dustproof disc is arranged at the end, close to the outside, of the wind scooper, dustproof holes are formed in the surface of the dustproof disc, air cooling impellers are arranged on the surface of the driving shaft and the surface of the driven shaft, an air cooling cavity is formed in the gearbox body, and the air cooling cavity corresponds to the wind scooper in position. The two air cooling impellers are driven to rotate in the rotating process of the driving shaft and the driven shaft, so that external air can be introduced into the gear box body, heat in the gear box body is discharged, a dustproof disc is arranged in an air guide cover, dust in the air can be prevented from entering the gear box body, and the service life of the gear box body is prolonged. And dust is prevented from being accumulated in the gearbox body.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to air cooling equipment for gear boxes. Background Art

[0002] The gearbox is an important mechanical component widely used in wind turbines. Its main function is to transfer the power generated by the wind rotor to the generator and make it rotate at a corresponding speed. Existing gearboxes are all sealed structures, which makes it difficult for the heat generated by the operation of the gears to evaporate. In the long-term operation process, heat accumulation will cause damage to the mechanism.

[0003] After searching, a heat dissipation gearbox disclosed in application number CN201420644050.9 includes a box body and an input shaft and an output shaft arranged in the box body. The input shaft and the output shaft are respectively fixedly connected with meshing gears 1 and 2. An annular groove is provided on the end cover of the box body. A heat conducting sheet is adhered in the annular groove. A semiconductor cooling sheet is fixedly connected to the outer surface of the heat conducting sheet. The cold surface of the semiconductor cooling sheet is attached to the outer wall of the heat conducting sheet. This heat dissipation gearbox has the advantage of good heat dissipation effect;

[0004] However, the above method still has the following defects in actual use: it transfers the heat inside the box by heat transfer through semiconductor refrigeration sheets, but the interior of the box is closed and no ventilation structure is set. It is difficult to quickly discharge the heat accumulated inside the box by the action of semiconductor refrigeration sheets alone. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a gearbox air cooling device, which has the advantage of being able to quickly discharge the heat inside the gearbox and solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a gearbox air-cooling device, comprising a gearbox body, a driving shaft is provided at one end of the gearbox body, a driven shaft is provided at the other end of the gearbox body, ventilation holes are provided at both ends of the gearbox body, air guide covers are provided at both ends of the gearbox body, a dust plate is provided at the end of the air guide cover close to the outside, dust holes are provided on the surface of the dust plate, air-cooling impellers are provided on the surfaces of the driving shaft and the driven shaft, an air-cooling cavity is provided inside the gearbox body, and the position of the air-cooling cavity corresponds to that of the air guide cover.

[0007] As a preferred technical solution of the utility model, the air cooling cavity is composed of two U-shaped air cooling plates, which are installed inside the gear box body, and the sides of the air cooling plates are provided with folded edges, and the two folded edges are snap-fitted and connected.

[0008] As a preferred technical solution of the utility model, a card slot is provided on the inner side of the two folded edges on one side, and a card block is provided on the inner side of the two folded edges on the other side, and the card block is engaged and connected with the card slot.

[0009] As a preferred technical solution of the utility model, a fixing plate is provided on the outer side of the air-cooling plate, and the fixing plate is connected to the inner wall of the gear box body by fixing screws 4.

[0010] As a preferred technical solution of the utility model, a mounting ring is provided at the end of the air guide cover close to the gear box body, and the mounting ring is connected to the end of the gear box body by fixing screws 2.

[0011] As a preferred technical solution of the utility model, a limiting ring is provided on the inner wall of the air guide cover, and the dustproof plate is connected to one side of the limiting ring by fixing screw three, and a through hole corresponding to the driving shaft and the driven shaft is provided in the middle of the dustproof plate.

[0012] As a preferred technical solution of the utility model, inspection grooves are provided on both sides of the gear box body, and inspection plates are embedded in the inspection grooves, and the inspection plates are connected to the inspection grooves by fixing screws.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The gearbox air cooling device drives two air cooling impellers to rotate during the rotation of the driving shaft and the driven shaft, so that external air can pass into the interior of the gearbox body, thereby discharging the heat inside the gearbox body, and a dustproof plate is arranged inside the air guide cover to prevent dust from entering the air and accumulating inside the gearbox body. At the same time, an air cooling cavity is arranged inside the gearbox body to guide the incoming air, so that the heat can be quickly discharged, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[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 utility model after the repair panel is disassembled;

[0017] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 4 This is one of the exploded structural schematic diagrams of the air-cooled cavity of the utility model;

[0019] Figure 5 This is the second schematic diagram of the explosion structure of the air-cooled cavity of the utility model.

[0020] In the figure: 1. gearbox body; 101. driving shaft; 102. driven shaft; 103. inspection slot; 104. inspection plate; 105. fixing screw one; 106. ventilation hole; 2. air-cooled impeller; 3. air guide cover; 301. mounting ring; 302. fixing screw two; 303. limiting ring; 304. dustproof plate; 305. dustproof hole; 306. fixing screw three; 307. through hole; 4. air-cooled cavity; 401. air-cooled plate; 402. folded edge; 403. slot; 404. block; 405. fixing plate; 406. fixing screw four. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 , a gearbox air cooling device, comprising a gearbox body 1, a driving shaft 101 is provided at one end of the gearbox body 1, a driven shaft 102 is provided at the other end of the gearbox body 1, ventilation holes 106 are provided at both ends of the gearbox body 1, a plurality of ventilation holes 106 are provided, and the ventilation holes 106 located on the same end face are distributed in an annular manner, air guide covers 3 are provided at both ends of the gearbox body 1 to guide the incoming air, a dust plate 304 is provided at the end of the air guide cover 3 close to the outside, and dust holes 305 are provided on the surface of the dust plate 304 to prevent the entry of external dust, air-cooling impellers 2 are provided on the surfaces of the driving shaft 101 and the driven shaft 102, and the air-guiding directions of the two air-cooling impellers 2 are the same, and when the driving shaft 101 and the driven shaft 102 rotate, the air-cooling impellers 2 are synchronously driven to rotate to pass the external air into the interior of the gearbox body 1, an air-cooling cavity 4 is provided inside the gearbox body 1, and the air-cooling cavity 4 corresponds to the position of the air guide cover 3, so as to guide the incoming air;

[0023] Inspection grooves 103 are provided on both sides of the gearbox body 1, which are convenient for inspecting the components inside the gearbox body 1, and an inspection plate 104 is embedded inside the inspection groove 103. At the same time, the inspection plate 104 is connected to the inspection groove 103 by fixing screws 105, which is convenient for quick disassembly and assembly of the inspection plate 104;

[0024] The end of the air guide cover 3 close to the gear box body 1 is provided with a mounting ring 301, and the mounting ring 301 is connected to the end of the gear box body 1 through a second fixing screw 302, so as to facilitate the rapid disassembly and assembly of the air guide cover 3;

[0025] A limiting ring 303 is provided on the inner wall of the air guide cover 3, and the dustproof plate 304 is connected to one side of the limiting ring 303 by a fixing screw 306, so as to facilitate the disassembly and assembly of the dustproof plate 304. Meanwhile, a through hole 307 corresponding to the driving shaft 101 and the driven shaft 102 is provided in the middle of the dustproof plate 304, so that the dustproof plate 304 can be installed without interfering with the rotation of the driving shaft 101 and the driven shaft 102.

[0026] The air cooling cavity 4 is composed of two U-shaped air cooling plates 401, which are installed inside the gear box body 1, and the sides of the air cooling plates 401 are provided with folded edges 402, and the two folded edges 402 are snap-fitted and connected to enable the two air cooling plates 401 to be quickly connected;

[0027] A card slot 403 is provided on the inner side of the two folded edges 402 on one side, and a card block 404 is provided on the inner side of the two folded edges 402 on the other side. The card block 404 is engaged with the card slot 403, and the position of the air cooling plate 401 is limited by the engagement between the card block 404 and the card slot 403.

[0028] A fixing plate 405 is provided on the outer side of the air cooling plate 401 , and the fixing plate 405 is connected to the inner wall of the gear box body 1 through fixing screws 406 , so as to facilitate quick disassembly and assembly of the air cooling plate 401 .

[0029] When in use, first remove the inspection plate 104, and install the two air-cooling plates 401 inside the gear box body 1, connect the two air-cooling plates 401 together to form an air-cooling cavity 4 through the engagement between the card slot 403 and the card block 404, and connect the air-cooling plate 401 to the inner wall of the gear box body 1 through the fixing screws 406, and then install the inspection plate 104 to the side of the gear box body 1 through the fixing screws 105;

[0030] Then, the air guide cover 3 is installed at both ends of the gear box body 1 by fixing screws 2 302 so that the cover is arranged outside the air-cooled impeller 2, and the dust plate 304 is installed inside the air guide cover 3 by fixing screws 306 so that the through hole 307 of the dust plate 304 passes through the driving shaft 101 and the driven shaft 102;

[0031] When the gearbox body 1 is working, its driving shaft 101 and the driven shaft 102 rotate, thereby driving the air-cooled impeller 2 on its surface to rotate, allowing the outside air to enter through the air guide cover 3 at one end and be discharged through the air guide cover 3 at the other end, thereby quickly discharging the heat inside the gearbox body 1 from the inside, and preventing dust from entering by setting the dustproof plate 304, and at the same time, under the action of the air-cooling cavity 4 inside the gearbox body 1, it plays a guiding role on the incoming air.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gearbox air cooling device, comprising a gearbox body (1), wherein one end of the gearbox body (1) is provided with a driving shaft (101), and the other end of the gearbox body (1) is provided with a driven shaft (102), characterized in that: Ventilation holes (106) are provided at both ends of the gearbox body (1), air guide covers (3) are provided at both ends of the gearbox body (1), a dust plate (304) is provided at the end of the air guide cover (3) close to the outside, and dust holes (305) are provided on the surface of the dust plate (304), air-cooling impellers (2) are provided on the surfaces of the driving shaft (101) and the driven shaft (102), and an air-cooling cavity (4) is provided inside the gearbox body (1), and the positions of the air-cooling cavity (4) and the air guide cover (3) correspond.

2. The gearbox air cooling device according to claim 1, characterized in that: The air cooling cavity (4) is composed of two U-shaped air cooling plates (401), which are installed inside the gear box body (1), and the sides of the air cooling plates (401) are provided with folded edges (402), and the two folded edges (402) are snap-fitted and connected.

3. The gearbox air cooling device according to claim 2, characterized in that: A clamping groove (403) is provided on the inner side of the two folding edges (402) located on one side, and a clamping block (404) is provided on the inner side of the two folding edges (402) located on the other side, and the clamping block (404) is clamped and connected with the clamping groove (403).

4. The gearbox air cooling device according to claim 2, characterized in that: A fixing plate (405) is provided on the outer side of the air cooling plate (401), and the fixing plate (405) is connected to the inner wall of the gear box body (1) via fixing screws (406).

5. The gearbox air cooling device according to claim 1, characterized in that: The end of the air guide cover (3) close to the gear box body (1) is provided with a mounting ring (301), and the mounting ring (301) is connected to the end of the gear box body (1) via a second fixing screw (302).

6. The gearbox air cooling device according to claim 1, characterized in that: The inner wall of the air guide cover (3) is provided with a limiting ring (303), and the dustproof plate (304) is connected to one side of the limiting ring (303) via a fixing screw (306), and a through hole (307) corresponding to the driving shaft (101) and the driven shaft (102) is provided in the middle of the dustproof plate (304).

7. The gearbox air cooling device according to claim 1, characterized in that: Inspection grooves (103) are provided on both sides of the gear box body (1), and an inspection plate (104) is embedded inside the inspection groove (103), and the inspection plate (104) is connected to the inspection groove (103) by fixing screws (105).

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