A drilling machine for ventilation holes in a large wind turbine nacelle.

Abstract

This utility model relates to the technical field of wind turbine manufacturing, and in particular to a drilling machine for ventilation holes in a large wind turbine nacelle. It not only facilitates the loading and unloading of the nacelle, improving work efficiency and eliminating the hassle of manual handling, but also washes and collects the glass fibers generated during drilling, preventing them from being inhaled by workers. The machine includes a conveying mechanism; it also includes three sets of pressing mechanisms, a moving mechanism, a drilling mechanism, a dust collection mechanism, and a washing mechanism. The three pressing mechanisms are all installed on the conveying mechanism and press the nacelle. The moving mechanism is installed on the conveying mechanism and drives the drilling mechanism to move back and forth. The drilling mechanism is installed on the moving mechanism and drills holes in the nacelle. The dust collection mechanism is installed on the conveying mechanism and extracts floating glass fibers. The washing mechanism is installed on the conveying mechanism and washes away waste.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine manufacturing, and in particular to a drilling machine for ventilation holes in a large wind turbine nacelle. Background Technology

[0002] The nacelle, as the protective shell of the wind turbine generator set, is usually made of fiberglass reinforced plastic. The nacelle covers all the components inside the nacelle and isolates them from the outside. Its reliability determines the stability and service life of the wind turbine generator set.

[0003] Existing wind turbine nacelle ventilation hole drilling machines, such as the tooling for drilling wind turbine nacelles disclosed in utility model patent application number 202320340680.6, mainly include a bracket fixed inside the nacelle, a guide rail mounted on the bracket, and a platform that can move freely within the guide rail. An electrically controlled telescopic rod is rotatably connected to the platform. A connecting block is provided at the top of the electrically controlled telescopic rod, and a connecting arm is provided on the connecting block. A rotating block is rotatably connected to the connecting arm, and a drill bit is provided on the rotating block. In use, the drill bit is oriented directly downwards, the height of the electrically controlled telescopic rod is adjusted to bring the drill bit close to the drilling point, the platform position is moved and aligned, and the electrically controlled telescopic rod controls the drill bit to descend, thereby completing the drilling work.

[0004] However, large wind turbine nacelle covers are generally larger than four meters in diameter, making manual loading, unloading, and handling very troublesome, time-consuming, and labor-intensive. Moreover, wind turbine nacelle covers are usually made of fiberglass with holes drilled in them, and the fiberglass dust generated during drilling is harmful to workers' health. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a large wind turbine nacelle ventilation hole drilling machine that not only facilitates the loading and unloading of the nacelle cover, improves work efficiency, and eliminates the trouble of manual handling, but also washes and collects the glass fibers generated during drilling, preventing the glass fibers from being scattered and inhaled by workers.

[0006] This utility model discloses a drilling machine for ventilation holes in a large wind turbine nacelle, comprising a conveying mechanism; it also includes three sets of pressing mechanisms, a moving mechanism, a drilling mechanism, a dust collection mechanism, and a rinsing mechanism. The three pressing mechanisms are all mounted on the conveying mechanism and press the nacelle cover. The moving mechanism is mounted on the conveying mechanism and drives the drilling mechanism to move back and forth. The drilling mechanism is mounted on the moving mechanism and drills holes in the nacelle cover. The dust collection mechanism is mounted on the conveying mechanism and extracts floating glass fibers. The rinsing mechanism is mounted on the conveying mechanism and rinses away debris. The conveying mechanism moves the nacelle cover forward, and the three pressing mechanisms press the nacelle cover to prevent it from moving up and down during drilling. When the nacelle cover moves to the designated position, the drilling mechanism drills holes in it. The moving mechanism moves the drilling mechanism to adjust the drilling position. During drilling, the dust collection mechanism and the rinsing mechanism are activated. The dust collection mechanism extracts floating glass fibers, and the rinsing mechanism rinses away debris adhering to the nacelle cover.

[0007] Preferably, the conveying mechanism includes a workbench, a dust cover, a conveying roller, a drainage hopper, and a drainage pipe. The bottom end of the workbench is connected to the ground, the bottom end of the dust cover is connected to the top end of the workbench, the conveying roller is installed on the workbench, the top end of the drainage hopper is connected to the bottom end of the workbench, and the top end of the drainage pipe is connected to the bottom end of the drainage hopper. The conveying roller drives the hood to move into the dust cover, which facilitates the drilling mechanism to drill holes in it. The flushing mechanism flushes the waste into the drainage hopper, and the wastewater is discharged through the drainage pipe.

[0008] Preferably, the pressing mechanism includes two sets of springs, two sets of positioning sliders, and a pressing roller. The dust cover has multiple sets of positioning grooves. Both sets of springs are installed in the positioning grooves. The two sets of positioning sliders are slidably installed in the two sets of positioning grooves, and the top ends of the two sets of positioning sliders are connected to the bottom ends of the two sets of springs. The pressing roller is rotatably installed between the two sets of positioning sliders. The two sets of springs push the two sets of positioning sliders to slide downwards along the positioning grooves, so that the pressing roller presses the top of the cover, avoiding the cover from vibrating up and down during drilling.

[0009] Preferably, the moving mechanism includes a lead screw box, a servo motor, a reducer, and a lead screw. The lead screw box is mounted on the dust cover, the servo motor is mounted on the dust cover, the output end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to the input end of the lead screw. When the servo motor is started, the servo motor drives the lead screw to rotate through the reducer, and the lead screw drives the drilling mechanism to move left and right to a designated position, which facilitates drilling at different positions of the housing.

[0010] Preferably, the drilling mechanism includes a movable support, two sets of electric cylinders, and a multi-axis drilling machine. The movable support is slidably mounted on the lead screw box and screwed to the lead screw. Both sets of electric cylinders are mounted on the movable support. The top of the multi-axis drilling machine is connected to the bottom of the two sets of electric cylinders. The lead screw drives the movable support to move left and right to a designated position. The two sets of electric cylinders push the multi-axis drilling machine down, and the multi-axis drilling machine is started to drill holes in the cabin cover.

[0011] Preferably, the dust collection mechanism includes two sets of collection hoods, a connecting pipe, a filter box, an air pump, and an extraction pipe. Both sets of collection hoods are installed on the dust cover, and the connecting pipe is installed between the two sets of collection hoods. The filter box is installed on the dust cover and communicates with the inside of the connecting pipe. The bottom end of the air pump is connected to the top end of the dust cover, and the extraction pipe is installed on the air pump and communicates with the inside of the filter box. When the air pump is started, the air pump extracts the air from the filter box through the extraction pipe, creating a negative pressure inside the filter box. The glass fiber and air in the dust cover enter the filter box through the two sets of collection hoods and the connecting pipe, and the glass fiber is filtered and collected inside the filter box.

[0012] Preferably, the rinsing mechanism includes a water pump, a water suction pipe, a water distribution pipe, and multiple sets of nozzles. The water pump is mounted on the dust cover, the water suction pipe is mounted on the water pump, the water distribution pipe is mounted on the dust cover and communicates with the inside of the water pump, and the multiple sets of nozzles are all mounted on the water distribution pipe. The water suction pipe is connected to a water source, the water pump is started to pump water, and clean water is delivered to the multiple sets of nozzles through the water distribution pipe. The multiple sets of nozzles spray clean water to rinse the debris attached to the hood.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the conveying mechanism drives the cover to move forward, and three sets of pressing mechanisms press the cover to prevent the cover from moving up and down during the drilling process. When the cover moves to the designated position, the drilling mechanism drills holes in the cover. The moving mechanism drives the drilling mechanism to move and adjust the drilling position. During the drilling process, the dust collection mechanism and the rinsing mechanism are activated. The dust collection mechanism extracts the glass fibers floating in the air, and the rinsing mechanism washes the waste attached to the cover. Attached Figure Description

[0014] Figure 1 This is a cross-sectional axonometric structural schematic diagram of this utility model;

[0015] Figure 2 This is a cross-sectional isometric structural diagram of the conveying mechanism and the moving mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional isometric structural diagram of the pressing mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged cross-sectional isometric structural diagram of the drilling mechanism and dust collection mechanism of this utility model;

[0018] Figure 5 This is a cross-sectional isometric structural diagram of the flushing mechanism of this utility model.

[0019] The attached diagram is labeled as follows: 01, conveying mechanism; 11, workbench; 12, dust cover; 13, conveying roller; 14, drainage hopper; 15, drainage pipe; 02, pressing mechanism; 21, spring; 22, positioning slider; 23, pressing roller; 03, moving mechanism; 31, lead screw box; 32, servo motor; 33, reducer; 34, lead screw; 04, drilling mechanism; 41, moving bracket; 42, electric cylinder; 43, multi-axis drilling machine; 05, dust collection mechanism; 51, collection cover; 52, connecting pipe; 53, filter box; 54, air pump; 55, air extraction pipe; 06, rinsing mechanism; 61, water pump; 62, water extraction pipe; 63, water distribution pipe; 64, nozzle. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] This utility model discloses a drilling machine for ventilation holes in a large wind turbine nacelle, comprising a conveying mechanism 01; and three sets of pressing mechanisms 02, a moving mechanism 03, a drilling mechanism 04, a dust collection mechanism 05, and a rinsing mechanism 06. The three pressing mechanisms 02 are all mounted on the conveying mechanism 01 and press the nacelle cover. The moving mechanism 03 is mounted on the conveying mechanism 01 and drives the drilling mechanism 04 to reciprocate. The drilling mechanism 04 is mounted on the moving mechanism 03 and drills holes in the nacelle cover. The dust collection mechanism 05 is mounted on the conveying mechanism 01 and extracts floating glass fibers. The rinsing mechanism 06 is mounted on the conveying mechanism 01 and rinses away waste materials. Structure 01 includes a workbench 11, a dust cover 12, a conveyor roller 13, a drainage hopper 14, and a drainage pipe 15. The bottom end of the workbench 11 is connected to the ground, the bottom end of the dust cover 12 is connected to the top end of the workbench 11, the conveyor roller 13 is mounted on the workbench 11, the top end of the drainage hopper 14 is connected to the bottom end of the workbench 11, and the top end of the drainage pipe 15 is connected to the inside of the bottom end of the drainage hopper 14. The pressing mechanism 02 includes two sets of springs 21, two sets of positioning sliders 22, and a pressing roller 23. The dust cover 12 has multiple sets of positioning grooves. Both sets of springs 21 are installed in the positioning grooves, and the two sets of positioning sliders 22 are slidably installed in the two sets of positioning grooves respectively. The top of the positioning slider 22 is connected to the bottom of the two sets of springs 21 respectively. The pressing roller 23 is rotatably installed between the two sets of positioning sliders 22. The moving mechanism 03 includes a lead screw box 31, a servo motor 32, a reducer 33 and a lead screw 34. The lead screw box 31 is installed on the dust cover 12. The servo motor 32 is installed on the dust cover 12. The output end of the servo motor 32 is connected to the input end of the reducer 33. The output end of the reducer 33 is connected to the input end of the lead screw 34. The drilling mechanism 04 includes a moving bracket 41, two sets of electric cylinders 42 and a multi-axis drilling machine 43. The moving bracket 41 is slidably installed on the lead screw box 31 and screwed to the lead screw 34. All cylinders 42 are mounted on the movable support 41. The top of the multi-axis drilling machine 43 is connected to the bottom of the two sets of electric cylinders 42. When it is working, firstly, the conveyor roller 13 moves the chamber cover into the dust cover 12. The two sets of springs 21 push the two sets of positioning sliders 22 to slide down along the positioning groove, so that the pressing roller 23 presses the top of the chamber cover to prevent the chamber cover from vibrating up and down during the drilling process. The servo motor 32 is started. The servo motor 32 drives the lead screw 34 to rotate through the reducer 33. The lead screw 34 drives the movable support 41 to move left and right to the designated position. The two sets of electric cylinders 42 push the multi-axis drilling machine 43 down and start the multi-axis drilling machine 43 to drill holes in the chamber cover. Example 2

[0022] like Figures 1 to 5As shown, this utility model discloses a large wind turbine nacelle ventilation hole drilling machine, based on embodiment 1. The dust collection mechanism 05 includes two sets of collection covers 51, a connecting pipe 52, a filter box 53, an air pump 54, and an extraction pipe 55. Both sets of collection covers 51 are installed on the dust cover 12, and the connecting pipe 52 is installed between the two sets of collection covers 51. The filter box 53 is installed on the dust cover 12 and communicates with the inside of the connecting pipe 52. The bottom end of the air pump 54 is connected to the top end of the dust cover 12, and the extraction pipe 55... The air pump 54 is installed on the air pump 54 and communicates with the inside of the filter box 53; the rinsing mechanism 06 includes a water pump 61, a water suction pipe 62, a water distribution pipe 63, and multiple sets of nozzles 64. The water pump 61 is installed on the dust cover 12, the water suction pipe 62 is installed on the water pump 61, the water distribution pipe 63 is installed on the dust cover 12 and communicates with the inside of the water pump 61, and the multiple sets of nozzles 64 are all installed on the water distribution pipe 63; when it is working, firstly, the conveyor roller 13 drives the chamber cover to move into the dust cover 12, and two sets of springs 21 push two sets of positioning The slider 22 slides downward along the positioning groove, causing the pressing roller 23 to press down on the top of the chamber cover, preventing the chamber cover from vibrating up and down during drilling. The servo motor 32 is started, and the servo motor 32 drives the lead screw 34 to rotate through the reducer 33. The lead screw 34 drives the moving bracket 41 to move left and right to the designated position. The two sets of electric cylinders 42 push the multi-axis drilling machine 43 down, starting the multi-axis drilling machine 43 to drill holes in the chamber cover. At the same time, the air pump 54 is started, and the air pump 54 empties the air in the filter box 53 through the air extraction pipe 55. Air is extracted, creating negative pressure inside the filter box 53. The glass fiber and air inside the dust cover 12 enter the filter box 53 through two sets of collection covers 51 and connecting pipe 52. The glass fiber is filtered and collected inside the filter box 53. The water pump 62 is connected to the water source, and the water pump 61 is started to pump water. The clean water is delivered to multiple sets of nozzles 64 through the water distribution pipe 63. The multiple sets of nozzles 64 spray clean water to wash away the waste debris attached to the cover. The waste debris is washed into the drain hopper 14, and the wastewater is discharged through the drain pipe 15.

[0023] The servo motor 32, reducer 33, and water pump 61 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A drilling machine for ventilation holes in a large wind turbine nacelle, comprising a conveying mechanism (01); characterized in that, It also includes three sets of pressing mechanisms (02), moving mechanisms (03), drilling mechanisms (04), dust collection mechanisms (05) and rinsing mechanisms (06). The three sets of pressing mechanisms (02) are all installed on the conveying mechanism (01) and press the cover. The moving mechanism (03) is installed on the conveying mechanism (01) and drives the drilling mechanism (04) to move back and forth. The drilling mechanism (04) is installed on the moving mechanism (03) and drills holes in the cover. The dust collection mechanism (05) is installed on the conveying mechanism (01) and extracts the floating glass fibers. The rinsing mechanism (06) is installed on the conveying mechanism (01) and rinses the waste.

2. The drilling machine for ventilation holes in a large wind turbine nacelle as described in claim 1, characterized in that, The conveying mechanism (01) includes a workbench (11), a dust cover (12), a conveyor roller (13), a drainage hopper (14), and a drainage pipe (15). The bottom end of the workbench (11) is connected to the ground, the bottom end of the dust cover (12) is connected to the top end of the workbench (11), the conveyor roller (13) is installed on the workbench (11), the top end of the drainage hopper (14) is connected to the bottom end of the workbench (11), and the top end of the drainage pipe (15) is connected to the bottom end of the drainage hopper (14).

3. A drilling machine for ventilation holes in a large wind turbine nacelle as described in claim 2, characterized in that, The pressing mechanism (02) includes two sets of springs (21), two sets of positioning sliders (22) and pressing roller (23). The dust cover (12) has multiple positioning grooves. Both sets of springs (21) are installed in the positioning grooves. The two sets of positioning sliders (22) are slidably installed in the two sets of positioning grooves respectively, and the top of the two sets of positioning sliders (22) are connected to the bottom of the two sets of springs (21) respectively. The pressing roller (23) is rotatably installed between the two sets of positioning sliders (22).

4. A drilling machine for ventilation holes in a large wind turbine nacelle as described in claim 2, characterized in that, The moving mechanism (03) includes a lead screw box (31), a servo motor (32), a reducer (33), and a lead screw (34). The lead screw box (31) is mounted on a dust cover (12), the servo motor (32) is mounted on a dust cover (12), the output end of the servo motor (32) is connected to the input end of the reducer (33), and the output end of the reducer (33) is connected to the input end of the lead screw (34).

5. A drilling machine for ventilation holes in a large wind turbine nacelle as described in claim 4, characterized in that, The drilling mechanism (04) includes a movable support (41), two sets of electric cylinders (42) and a multi-axis drilling machine (43). The movable support (41) is slidably mounted on the lead screw box (31) and screwed to the lead screw (34). Both sets of electric cylinders (42) are mounted on the movable support (41). The top of the multi-axis drilling machine (43) is connected to the bottom of the two sets of electric cylinders (42).

6. A drilling machine for ventilation holes in a large wind turbine nacelle as described in claim 2, characterized in that, The dust collection mechanism (05) includes two sets of collection covers (51), a connecting pipe (52), a filter box (53), an air pump (54), and an exhaust pipe (55). Both sets of collection covers (51) are installed on the dust cover (12). The connecting pipe (52) is connected between the two sets of collection covers (51). The filter box (53) is installed on the dust cover (12) and connected to the inside of the connecting pipe (52). The bottom end of the air pump (54) is connected to the top end of the dust cover (12). The exhaust pipe (55) is installed on the air pump (54) and connected to the inside of the filter box (53).

7. A drilling machine for ventilation holes in a large wind turbine nacelle as described in claim 2, characterized in that, The rinsing mechanism (06) includes a water pump (61), a water suction pipe (62), a water distribution pipe (63), and multiple sets of nozzles (64). The water pump (61) is installed on the dust cover (12), the water suction pipe (62) is installed on the water pump (61), the water distribution pipe (63) is installed on the dust cover (12) and communicates with the inside of the water pump (61), and the multiple sets of nozzles (64) are all installed on the water distribution pipe (63).

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