Automatic turnover equipment for wind power blade web

Abstract

The invention relates to the technical field of fan assembly hoisting equipment, in particular to automatic turnover equipment for a wind power blade web, which comprises a truss, a plurality of mechanical arms, turnover mechanisms, a suction device and suckers, the truss is connected with the mechanical arms, the turnover mechanisms are mounted on the mechanical arms, the output ends of the turnover mechanisms are connected with the end part of the suction device, and the suction device is connected with the sucker. The other end of the suction device is connected with a suction cup, the output end of the suction cup is far away from the truss, the web adsorbed by the device is overturned by arranging the overturning mechanism, the web can enter the PS surface of a mold in a horizontal state by utilizing an existing crane in an existing plant, and then the web and a blade are bonded.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine assembly hoisting equipment, and in particular to an automatic flipping device for a wind turbine blade web. Background Art

[0002] Wind turbine blades are one of the core components of wind turbines. They are mainly made of epoxy fiberglass composite materials and have a service life of more than 20 years. The first bonding of the web is one of the most critical steps in the blade molding process. The bonding quality and efficiency affect the blade molding cycle.

[0003] However, many of the current blade processing and manufacturing factories are factories that designed blade models 10 years ago. Due to the rapid iteration and update of blade models, the current land blades have tended to be 110-meter-class blades. The 110-meter-class blades have a larger pre-bend, so the volume of the webs required for hoisting has increased synchronously. Due to the overall low height of the factory building during construction and the low lifting height of the overhead crane, the webs cannot vertically enter the PS surface of the mold to bond with the blades. Summary of the invention

[0004] The present invention provides an automatic flipping device for a web of a wind turbine blade, which is used to solve the problem raised in the background technology.

[0005] In order to achieve the above-mentioned invention object, the present invention provides the following technical solutions: an automatic flipping device for the belly of a wind turbine blade, comprising: a truss, a mechanical arm, a flipping mechanism, a suction device and a vacuum suction cup, wherein the truss is connected to a plurality of mechanical arms, the mechanical arms are equipped with a flipping mechanism, the output end of the flipping mechanism is connected to the end of the suction device, the other end of the suction device is connected to the vacuum suction cup, and the output end of the vacuum suction cup is arranged away from the truss.

[0006] Preferably, the flipping mechanism includes: a servo motor and a reducer, the mechanical arm is equipped with a servo motor, the output shaft of the servo motor is connected to the input shaft of the reducer, the reducer is installed on the mechanical arm, and the output shaft of the reducer is connected to the end of the suction device.

[0007] Preferably, the suction device includes: a vacuum pump, a UPS power supply and a vacuum pipeline. The truss is equipped with a vacuum pump, the vacuum pump is electrically connected to the end of the UPS power supply through a wire, the other end of the UPS power supply is electrically connected to the power supply through a cable, one end of the vacuum pump is connected to the end of the vacuum pipeline, and the UPS power supply and the vacuum pipeline are both connected to the truss.

[0008] Preferably, the suction device also includes: a mounting seat, a suction cup fixing frame and a suction cup adjustment frame, the output shaft of the reducer is plugged into the mounting hole at the top of the mounting seat, the mounting seat is slidably connected to the suction cup fixing frame, a screw hole is opened at the bottom of the suction cup fixing frame, a screw rod is threadedly connected to the inner thread of the screw hole, and the end of the screw rod is connected to one end of the suction cup adjustment frame.

[0009] Preferably, an electro-hydraulic push rod is installed at the bottom of the mounting seat, and the output end of the electro-hydraulic push rod is connected to the side of the suction cup fixing frame.

[0010] Preferably, the other end of the suction cup adjustment frame is connected to the vacuum suction cup, the vacuum suction cup input end is connected to the end of the auxiliary tube, and the other end of the auxiliary tube is connected to the other end of the vacuum pipeline.

[0011] Preferably, a locking nut is threadedly connected to the screw rod, and an end of the locking nut is in contact with and fits with the other side of the suction cup fixing frame.

[0012] Preferably, an angle sensor is installed on the mechanical arm, and an input shaft of the angle sensor is connected to the end of the output shaft of the reducer.

[0013] Preferably, the top end of an L-shaped protective belt is installed on the side of the truss, and the bottom end of the L-shaped protective belt is arranged directly below the truss and away from the angle sensor.

[0014] Preferably, a lifting ring is provided on the top of the truss.

[0015] The beneficial effects of the present invention are as follows:

[0016] In the scheme of the present invention:

[0017] By setting up a flipping mechanism to flip the web adsorbed by the device, the web can be brought into the PS surface of the mold in a horizontal state using an existing crane in an existing factory, thereby achieving bonding of the web and the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation position of the vacuum suction cup of the present invention;

[0020] Figure 3 This is a schematic diagram of the vacuum suction cup of the present invention in a flipping state;

[0021] Figure 4 It is a schematic diagram of the installation shell structure of the present invention;

[0022] Figure 5 It is a cross-sectional view of the installation shell of the present invention;

[0023] Figure 6 It is a partial cross-sectional enlarged view of the liquid storage tank of the present invention;

[0024] Figure 7 It is a schematic diagram of the relative position relationship between the guide hole and the throttling block of the present invention;

[0025] Figure 8 It is a schematic diagram of the connection relationship between the liquid pump and the liquid inlet pipe of the present invention;

[0026] Fig. 9 It is a schematic diagram of the connection relationship between the installation pipe and the liquid inlet pipe 4 of the present invention;

[0027] Fig.10 It is a schematic diagram of the connection relationship between the liquid pump and the air intake pipe of the present invention.

[0028] Wherein: vacuum pump 1, UPS power supply 2, truss 3, vacuum pipeline 4, robotic arm 5, flip mechanism 6, servo motor 7, vacuum suction cup 8, reducer 9, L-shaped protective belt 10, angle sensor 11, electro-hydraulic push rod 12, suction cup fixing frame 13, suction cup adjustment frame 14, mounting shell 15, mounting pipe 16, insert pipe 17, rubber disc 18, double-sided rack 19, L-shaped guide rod 20, liquid storage tank 21, piston 22, mounting cavity 23, pressure cavity 24, spring 25, guide hole 26, throttle block 27, spring two 28, inclined plane 29, gear 30, liquid pump 31, liquid inlet pipe 32, liquid inlet pipe two 33, one-way valve 34, rubber storage bag 35, liquid inlet pipe three 36, liquid inlet pipe four 37, liquid inlet hole 38, liquid discharge hole 39, air inlet pipe 40, one-way valve two 41. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example 1: Reference Figure 1-Figure 10 An automatic flipping device for the web of a wind turbine blade comprises: a truss 3, a mechanical arm 5, a flipping mechanism 6, a suction device and a vacuum suction cup 8, wherein the truss 3 is connected to a plurality of mechanical arms 5, the mechanical arms 5 are provided with a flipping mechanism 6, the output end of the flipping mechanism 6 is connected to the end of the suction device, the other end of the suction device is connected to the vacuum suction cup 8, and the output end of the vacuum suction cup 8 is arranged away from the truss 3.

[0031] The principles and beneficial effects of the above scheme are:

[0032] The vacuum suction cup 8 is used to contact the web, and the suction device is started to reduce the air pressure between the vacuum suction cup 8 and the web. After the web is adsorbed, the flipping mechanism 6 is started to flip the web adsorbed by the vacuum suction cup 8. The truss 3 is moved by the overhead crane to move the web into the web cavity and bond it to the blade. The flipping mechanism 6 is set to flip the web adsorbed by the device. The existing crane can be used in the existing factory to make the web enter the PS surface of the mold in a horizontal state, thereby achieving the bonding of the web and the blade.

[0033] At the same time, by setting a plurality of mechanical arms 5, each mechanical arm 5 cooperates with the flip mechanism 6, the suction device and the vacuum suction cup 8 to adsorb the web, sharing the external force of the web when adsorbing and moving, ensuring the stability of the web when moving, and preventing damage to the device;

[0034] A plurality of vacuum suction cups 8 are arranged in the device, and the vacuum suction cups 8 cooperate with the suction device to adsorb the web. The advantage of arranging a plurality of vacuum suction cups 8 is that the device can distribute the pressure applied to the surface of the web during the process of adsorbing and flipping the web, avoiding the local pressure concentration that may be caused by a single vacuum suction cup 8, thereby reducing the problem of uneven force on the web, avoiding deformation and damage caused by local pressure concentration, and further ensuring that the installation accuracy remains unchanged, and ensuring the bonding accuracy of the web and the blade during the installation process, thereby improving the yield rate; affected by the storage conditions and the external environment, there may be local dust accumulation and moisture residue on the surface of the web, and the arrangement of a plurality of vacuum suction cups 8 can avoid the failure of the adsorption function of some vacuum suction cups 8, thereby improving the safety during the transportation of the web; the negative pressure of the vacuum suction cup 8 is small during operation, and the corresponding size becomes smaller. At this time, the negative impact of the external temperature change on the vacuum suction cup 8 is reduced. Compared with the large-sized suction cup, its deformation resistance is increased when working in a high temperature environment, and the material performance can be avoided from being reduced. When working in a low temperature environment, the low temperature resistance is enhanced, reducing the possibility of embrittlement of the material.

[0035] Example 2: Reference Figure 1-Figure 10 The flipping mechanism 6 includes: a servo motor 7 and a reducer 9. The servo motor 7 is installed on the mechanical arm 5. The output shaft of the servo motor 7 is connected to the input shaft of the reducer 9. The reducer 9 is installed on the mechanical arm 5. The output shaft of the reducer 9 is connected to the end of the suction device.

[0036] The principles and beneficial effects of the above scheme are:

[0037] When the belly plate needs to be adsorbed, start the servo motor 7, and the output shaft of the servo motor 7 drives the input shaft of the reducer 9 to rotate, and the output shaft of the reducer 9 drives the suction device to rotate. The servo motor 7 can increase the accuracy of the suction device during rotation, and the synchronous movement of multiple suction devices can further protect the integrity of the shape of the belly plate. The output shaft of the servo motor 7 is connected to the input shaft of the reducer 9, which can increase the torque of the output shaft of the reducer 9 and reduce the burden of the servo motor 7 during operation, so as to facilitate the flipping of the belly plate of a larger volume adsorbed by the device. At the same time, the reducer 9 can further increase the accuracy during rotation.

[0038] Example 3: Reference Figure 1-Figure 10The suction device includes: a vacuum pump 1, a UPS power supply 2 and a vacuum pipeline 4. The vacuum pump 1 is installed on the truss 3. The vacuum pump 1 is electrically connected to the end of the UPS power supply 2 through a wire. The other end of the UPS power supply 2 is electrically connected to the power supply through a cable. One end of the vacuum pump 1 is connected to the end of the vacuum pipeline 4. The UPS power supply 2 and the vacuum pipeline 4 are both connected to the truss 3.

[0039] The suction device also includes: a mounting seat, a suction cup fixing frame 13 and a suction cup adjustment frame 14. The output shaft of the reducer 9 is plugged into the mounting hole at the top of the mounting seat. The mounting seat is slidably connected to the suction cup fixing frame 13. A screw hole is opened at the bottom of the suction cup fixing frame 13. A screw is threadedly connected to the inner thread of the screw hole. The end of the screw is connected to one end of the suction cup adjustment frame 14.

[0040] The principles and beneficial effects of the above scheme are:

[0041] When the web is adsorbed, first make the vacuum suction cup 8 connect with the web, then start the vacuum pump 1 to suck the air between the web and the vacuum suction cup 8 through the vacuum pipe 4, and when all the air is sucked away, turn off the vacuum pump 1; when the web moves into the mold, start the vacuum pump 1 again to inflate the space between the web and the vacuum suction cup 8 through the vacuum pipe 4; the specific model of the UPS power supply 2 is: APC Back-UPS Pro BX1500M, the vacuum pump 1 is electrically connected to the UPS power supply 2 through a wire, when the external power supply of the UPS power supply 2 is disconnected, the electric energy stored in the UPS power supply 2 continues to maintain the adsorption state of the web and the vacuum suction cup 8, and prevents the web from accidentally falling off during the movement; since a screw hole is opened at the bottom of the suction cup fixing frame 13, a screw rod is connected to the inner thread of the screw hole, and the end of the screw rod is connected to one end of the suction cup adjusting frame 14, there is a certain distance between the suction cup adjusting frame 14 and the suction cup fixing frame 13, when the truss 3 is moved, If the distance between the vacuum suction cup 8 and the web is too large, the screw rod can be rotated to increase or decrease the distance between the suction cup adjusting frame 14 and the suction cup fixing frame 13, and further adjust the distance between the vacuum suction cup 8 and the web to avoid adjusting the truss 3 again, thereby reducing the complexity of the device during operation. At the same time, a screw rod is connected to the thread in the screw hole, which can improve the stability of the connection between the screw rod and the suction cup adjusting frame 14 and the suction cup fixing frame 13, and further facilitate the installation and disassembly of the suction cup adjusting frame 14 on the suction cup fixing frame 13.

[0042] Example 4: Reference Figure 1-Figure 10 An electro-hydraulic push rod 12 is installed at the bottom of the mounting seat, and the output end of the electro-hydraulic push rod 12 is connected to the side of the suction cup fixing frame 13.

[0043] The principles and beneficial effects of the above scheme are:

[0044] Since the mounting seat is slidably connected to the suction cup fixing frame 13, when it is necessary to further accurately adjust the distance between the vacuum suction cup 8 and the web, the electro-hydraulic push rod 12 can be started, and the output end of the electro-hydraulic push rod 12 drives the suction cup fixing frame 13 to move closer to or away from the web to complete the adjustment of the position of the vacuum suction cup 8; at the same time, the output end of the electro-hydraulic push rod 12 is connected to the suction cup fixing frame 13, which increases the stability of the suction cup fixing frame 13 and further improves the integrity of the device.

[0045] Example 5: Reference Figure 1-Figure 10 The other end of the suction cup adjustment frame 14 is connected to the vacuum suction cup 8, the input end of the vacuum suction cup 8 is connected to the end of the auxiliary tube, and the other end of the auxiliary tube is connected to the other end of the vacuum pipeline 4.

[0046] The principles and beneficial effects of the above scheme are:

[0047] The suction cup adjustment frame 14 provides a stable installation position for the vacuum suction cup 8. When the web is adsorbed, the vacuum pipeline 4 evacuates the input end of the vacuum suction cup 8 through the auxiliary pipe. After the web is adsorbed, the outside air enters the vacuum suction cup 8 through the vacuum pump 1, the vacuum pipeline 4 and the auxiliary pipe in sequence.

[0048] The arrangement of multiple vacuum suction cups 8 can not only reduce the negative pressure of each vacuum suction cup 8 during operation, but also prevent the vacuum suction cup 8 itself from cracking, deforming or wearing when working under excessive negative pressure. Furthermore, due to the reduction of negative pressure when the vacuum suction cup 8 is working, the size of the auxiliary pipe connected to the vacuum suction cup 8 is also reduced. At this time, the auxiliary pipeline can be fixed on the device according to actual conditions, or directly connected between the vacuum pipeline 4 and the vacuum suction cup 8. This is not only convenient for maintenance, but also has low difficulty in fixing the auxiliary pipe. The size requirements of the structure of the auxiliary pipe to be fixed are loose, which is suitable for application in actual production. When a pipeline fails, the vacuum pipeline 4 and the auxiliary pipe can be checked separately to quickly troubleshoot the fault.

[0049] Example 6: Reference Figure 1-Figure 10 The screw rod is threadedly connected with a locking nut, and the end of the locking nut is in contact with the other side of the suction cup fixing frame 13.

[0050] The principles and beneficial effects of the above scheme are:

[0051] A locking nut is threadedly connected to the screw rod, and the end of the locking nut contacts and cooperates with the other side of the suction cup fixing frame 13, which can improve the stability of the screw rod after installation and prevent it from falling off under high-intensity working conditions, thereby improving the safety of the device during operation.

[0052] Example 7: Reference Figure 1-Figure 10An angle sensor 11 is installed on the mechanical arm 5, and the input shaft of the angle sensor 11 is connected to the end of the output shaft of the reducer 9.

[0053] The principles and beneficial effects of the above scheme are:

[0054] The specific model of the angle sensor 11 is: Honeywell HAA241. When the output shaft of the reducer 9 rotates, the input shaft of the angle sensor 11 rotates synchronously, thereby monitoring the flipping state of the web and ensuring that each vacuum suction cup 8 can be firmly adsorbed on the web.

[0055] Example 8: Reference Figure 1-Figure 10 The top end of the L-shaped protection belt 10 is installed on the side of the truss 3 , and the bottom end of the L-shaped protection belt 10 is arranged directly below the truss 3 and away from the angle sensor 11 .

[0056] The principles and beneficial effects of the above scheme are:

[0057] After the web is turned over, an L-shaped protection belt 10 is installed on the side of the truss 3. The bottom end of the L-shaped protection belt 10 is arranged just below the truss 3 to protect the web during transportation.

[0058] Example 9: Reference Figure 1-Figure 10 , a lifting ring is provided on the top of the truss 3.

[0059] The principles and beneficial effects of the above scheme are:

[0060] The lifting ring is provided to facilitate the lifting of the device by the hook of the crane, thereby moving the device.

[0061] Example 10: Reference Figure 1-Figure 10 The other end of the suction cup adjustment frame 14 is connected to the end of the mounting shell 15, the other end of the mounting shell 15 is connected to the mounting tube 16, the end of the mounting tube 16 placed outside the mounting shell is connected to the vacuum suction cup 8, the mounting tube 16 is slidably connected with the insertion tube 17, one end of the insertion tube 17 is connected to the rubber disk 18, the other end of the insertion tube 17 placed in the mounting shell 15 is connected to the end of the double-sided rack 19, the double-sided rack 19 is slidably connected to the top wall of the mounting shell, the bottom of the double-sided rack 19 is connected to a buffer mechanism, and the buffer mechanism is connected to the bottom wall of the mounting shell 15.

[0062] The principles and beneficial effects of the above scheme are:

[0063] The mounting tube 16 can increase the stability of the vacuum suction cup 8 and prevent it from deforming during the adsorption process;

[0064] When the vacuum suction cup 8 approaches the belly plate, the rubber disc 18 is pressed to drive the insertion tube 17 to move toward the inside of the mounting tube 16, and the movement of the insertion tube 17 drives the movement of the double-sided rack 19. At this time, the buffer mechanism connected to the double-sided rack 19 can provide buffering for the movement of the insertion tube 17, preventing the vacuum suction cup 8 from moving too fast and being flattened before the suction starts, further increasing the stability of the vacuum suction cup 8 during suction;

[0065] When the vacuum suction cup 8 finishes working, the vacuum suction cup 8 moves away from the web, and under the action of the buffer mechanism, the insertion tube 17 slowly moves to the outside of the vacuum suction cup 8 to prevent the insertion tube 17 from colliding with the web;

[0066] The provision of the rubber disc 18 not only increases the cross-sectional area of ​​the cannula 17 and reduces the pressure exerted by the cannula 17 on the belly plate to prevent it from being deformed due to excessive pressure, but also increases the contact area and friction of the cannula 17 when the vacuum suction cup 8 is adsorbed, thereby increasing the stability of the belly plate after adsorption.

[0067] Example 11: Reference Figure 1-Figure 10 The buffer mechanism includes: an L-shaped guide rod 20, the bottom surface of the double-sided rack 19 is connected to the top of the L-shaped guide rod 20, the L-shaped guide rod 20 is slidably connected to the liquid storage tank 21, the liquid storage tank 21 is connected to the bottom wall of the mounting shell 15, the end of the L-shaped guide rod 20 placed in the liquid storage tank 21 is connected to a piston 22, the piston 22 is slidably sealed with the inner wall of the liquid storage tank 21, the end of the piston 22 facing the vacuum suction cup 8 and the inner wall of the liquid storage tank 21 form a mounting cavity 23, and the other side wall of the piston 22 forms a mounting cavity 23 with the inner wall of the liquid storage tank 21 A pressure chamber 24 is formed, the inner wall of the pressure chamber 24 is connected to the other side wall of the piston 22 through a spring 25, a plurality of guide holes 26 are opened and penetrated on the piston 22, the liquid storage tank 21 is filled with hydraulic oil, a plurality of throttling blocks 27 are slidably connected to the side wall of the piston 22, the throttling blocks 27 are arranged in a one-to-one correspondence with the guide holes 26, the width of the throttling blocks 27 is smaller than the inner diameter of the guide holes 26, the top of the throttling block 27 is connected to the side wall of the piston 22 through a spring 28, and the inclined surface 29 arranged at the bottom of the throttling block 27 is arranged toward the guide holes 26.

[0068] The principles and beneficial effects of the above scheme are:

[0069] When the double-sided rack 19 moves in the direction away from the vacuum suction cup 8, the L-shaped guide rod 20 moves synchronously, the L-shaped guide rod 20 drives the piston 22 to move, the spring 25 is compressed, and the hydraulic oil in the pressure chamber 24 enters the installation chamber 23 through the guide hole 26, reducing the moving speed of the L-shaped guide rod 20, and synchronously reducing the moving speed of the cannula 17, preventing the cannula 17 from vibrating the vacuum suction cup 8 due to the excessively fast moving speed during the movement process, thereby avoiding the gap between the vacuum suction cup 8 and the web, increasing the success rate of adsorption, and at the same time, evenly distributing the pressure, avoiding the situation where the local pressure is too large or too small, and improving the stability of the adsorption force;

[0070] The avoidance of vibration can also prevent friction between the vacuum suction cup 8 and the web, greatly avoiding the occurrence of scratches on the product by the device; further, the disappearance of vibration can also increase the service life of the vacuum suction cup 8;

[0071] When the vacuum suction cup 8 finishes adsorbing the product, the pressure on the rubber disc 18 is reduced, and under the elastic force of the spring 25, the piston 22 slides in the liquid storage tank 21 again, and the piston 22 drives the L-shaped guide rod 20 to move, and the double-sided rack 19 moves in the direction of the vacuum suction cup 8. The hydraulic oil in the installation cavity 23 flows back to the pressure cavity 24 through the guide hole 26. Further, the double-sided rack 19 moves in the direction away from the vacuum suction cup 8, and finally the cannula 17 is retracted, and the double-sided rack 19 moves in the direction of the vacuum suction cup 8. The movement finally releases the cannula 17. In order to accurately control the release speed of the cannula 17 to be less than the contraction speed of the cannula 17, that is, to prevent the released cannula 17 from hitting the web, a throttling block 27 is provided on each guide hole 26. When the hydraulic oil in the pressure chamber 24 flows into the installation chamber 23 through the guide hole 26, the flowing hydraulic oil impacts the inclined surface 29, and the throttling block 27 moves upward and compresses the spring 28 at the same time, until the piston 22 stops moving, and the spring 28 and the throttling block 27 are reset;

[0072] When the hydraulic oil in the installation cavity 23 flows into the pressure cavity 24 through the guide hole 26, the flowing hydraulic oil impacts the side of the throttling block 27 away from the inclined surface 29. At this time, the throttling block 27 blocks the flowing hydraulic oil, further limiting the flow rate of the hydraulic oil, thereby reducing the speed at which the pressure cavity 24 recovers its original volume, ultimately ensuring that the release speed of the cannula 17 is less than the contraction speed of the cannula 17.

[0073] Example 12: Reference Figure 1-Figure 10, each side of the double-sided rack 19 is meshed with a gear 30, each gear 30 is installed on the driving shaft of a liquid pump 31, the liquid pump 31 is connected to the inner wall of the mounting shell 15, one end of the liquid pump 31 is connected to the end of a liquid inlet pipe 32, the other end of the liquid inlet pipe 32 is placed outside the mounting shell 15 and is placed below the liquid level of the sol in the storage tank, the other end of the liquid pump 31 is connected to the end of a second liquid inlet pipe 33, a one-way valve 34 is provided on the second liquid inlet pipe 33, the other end of the second liquid inlet pipe 33 is connected to the end of a rubber storage bag 35, and the other end of the rubber storage bag 35 is connected to the liquid inlet pipe 3 The end of the liquid inlet pipe 36 is connected, the other end of the liquid inlet pipe 36 is connected to the side of the liquid inlet pipe 4 37, the top of the liquid inlet pipe 4 37 is connected to the bottom wall of the mounting tube 16, a liquid inlet hole 38 is opened on the inner wall of the insert pipe 17, the liquid inlet hole 38 is located inside the mounting shell 15, and is connected to the top of the liquid inlet pipe 4 37, a plurality of liquid discharge holes 39 are opened on the side wall of the other end of the insert pipe 17, the liquid discharge holes 39 are arranged toward the end face of the output end of the vacuum suction cup 8, the end of the air inlet pipe 40 is connected to the liquid pump 31, the air inlet pipe 40 is connected to a one-way valve 2 41, and the other end of the air inlet pipe 40 is placed outside the mounting shell 15.

[0074] The principles and beneficial effects of the above scheme are:

[0075] When the vacuum suction cup 8 adsorbs the product, it will also adsorb the glue remaining in the environment or on the product. The glue adhering to the end face of the output end of the vacuum suction cup 8 will greatly reduce its adsorption capacity for the product. Therefore, the device uses a sol to clean the glue to improve the safety of the device during operation. When the double-sided rack 19 moves away from the vacuum suction cup 8, it drives the gear 30 meshing with it to rotate forward, and then the sol in the storage tank is extracted into the driving liquid pump 31 through the liquid inlet pipe 32, and then enters the rubber storage bag 35 through the one-way valve 34 on the liquid inlet pipe 2 33. Due to the movement of the cannula 17, the liquid inlet hole 38 and the liquid inlet pipe 4 37 are no longer connected, so the volume of the rubber storage bag 35 increases while storing the sol.

[0076] When the double-sided rack 19 moves toward the vacuum suction cup 8, the gear 30 reverses, and the liquid pump 31 performs reverse suction work. At this time, the one-way valve 2 41 in the air inlet pipe 40 starts to work, sucking the external air into the liquid pump 31 and cleaning the inside thereof. The one-way valve 34 prevents the sol in the rubber storage bag 35 from flowing back into the liquid pump 31. When the cannula 17 is reset, the liquid inlet hole 38 and the liquid inlet pipe 4 37 are connected again. Under the action of the elastic force of its reset, the sol in the rubber storage bag 35 enters the liquid inlet pipe 4 37 through the liquid inlet pipe 3 36, and then enters the cannula 17 through the liquid inlet hole 38. With the cooperation of the rubber disc 18, the sol is discharged to the end surface of the output end of the vacuum suction cup 8 through the discharge hole 39, dissolving the glue on the end surface of the output end of the vacuum suction cup 8 to avoid the undesirable phenomenon of reduced adsorption capacity when the device works next time, which greatly improves the safety of the device during operation and reduces the difficulty of cleaning and maintenance of the device.

[0077] When the device is adsorbing a product of heavier weight, the lateral width of the vacuum suction cup 8 is reduced to provide greater suction to the product. At this time, the double-sided rack 19 moves a greater distance away from the vacuum suction cup 8, so the volume of the sol agent input into the rubber storage bag 35 through the liquid pump 31 is larger. Since the vacuum suction cup 8 requires greater suction to adsorb the product, the negative pressure generated between it and the product is greater, which will have greater suction on the glue on the product or in the environment, and further increase the amount of glue bonded to the end face of the output end of the vacuum suction cup 8. At this time, more sol agent stored in the rubber storage bag 35 can meet the cleaning process of a larger amount of glue, thereby realizing the ability of the device to autonomously adjust under different working conditions, thereby greatly improving the practicality of the device.

[0078] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An automatic turning device for a wind turbine blade web, characterized in that: include: A truss (3), a mechanical arm (5), a flipping mechanism (6), a suction device and a vacuum suction cup (8), wherein the truss (3) is connected to a plurality of mechanical arms (5), the mechanical arm (5) is provided with a flipping mechanism (6), the output end of the flipping mechanism (6) is connected to the end of the suction device, the other end of the suction device is connected to the vacuum suction cup (8), and the output end of the vacuum suction cup (8) is arranged away from the truss (3).

2. The automatic turning device for the web of a wind turbine blade according to claim 1, characterized in that: The flipping mechanism (6) comprises: a servo motor (7) and a reducer (9); the mechanical arm (5) is equipped with the servo motor (7); the output shaft of the servo motor (7) is connected to the input shaft of the reducer (9); the reducer (9) is installed on the mechanical arm (5); and the output shaft of the reducer (9) is connected to the end of the suction device.

3. The automatic turning device for the web of a wind turbine blade according to claim 2, characterized in that: The suction device comprises: a vacuum pump (1), a UPS power supply (2) and a vacuum pipeline (4); the vacuum pump (1) is installed on the truss (3); the vacuum pump (1) is electrically connected to the end of the UPS power supply (2) via a wire; the other end of the UPS power supply (2) is electrically connected to the power supply via a cable; one end of the vacuum pump (1) is connected to the end of the vacuum pipeline (4); and the UPS power supply (2) and the vacuum pipeline (4) are both connected to the truss (3).

4. The automatic turning device for the web of a wind turbine blade according to claim 2, characterized in that: The suction device further comprises: a mounting seat, a suction cup fixing frame (13) and a suction cup adjusting frame (14); the output shaft of the reducer (9) is plugged into and matched with the mounting hole at the top of the mounting seat; the mounting seat is slidably connected to the suction cup fixing frame (13); a screw hole is formed at the bottom of the suction cup fixing frame (13); a screw rod is threadedly connected to the screw hole; and the end of the screw rod is connected to one end of the suction cup adjusting frame (14).

5. The automatic turning device for the web of a wind turbine blade according to claim 4, characterized in that: An electro-hydraulic push rod (12) is arranged at the bottom of the mounting seat, and an output end of the electro-hydraulic push rod (12) is connected to the side of the suction cup fixing frame (13).

6. The automatic turning device for the web of a wind turbine blade according to claim 4, characterized in that: The other end of the suction cup adjustment frame (14) is connected to the vacuum suction cup (8), the input end of the vacuum suction cup (8) is connected to the end of the auxiliary tube, and the other end of the auxiliary tube is connected to the other end of the vacuum pipeline (4).

7. The automatic turning device for the web of a wind turbine blade according to claim 5, characterized in that: A locking nut is threadedly connected to the screw rod, and an end of the locking nut is in contact with the other side of the suction cup fixing frame (13).

8. The automatic turning device for the web of a wind turbine blade according to claim 4, characterized in that: An angle sensor (11) is installed on the mechanical arm (5), and the input shaft of the angle sensor (11) is connected to the end of the output shaft of the reducer (9).

9. The automatic turning device for the web of a wind turbine blade according to claim 8, characterized in that: The top end of an L-shaped protective belt (10) is mounted on the side of the truss (3), and the bottom end of the L-shaped protective belt (10) is arranged directly below the truss (3) and away from the angle sensor (11).

10. The automatic turning device for the web of a wind turbine blade according to claim 9, characterized in that: The top of the truss (3) is provided with a lifting ring.

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