A tool for replacing the yaw copper sleeve of a fan

Abstract

The invention discloses a tool for replacing a yaw copper sleeve of a fan, comprising a tool seat, wherein a lubricating oil groove, an air pressure groove and a copper sleeve extraction hole are respectively provided on the tool seat, a spring air bag is fixedly installed inside the air pressure groove, the bottom of the air pressure groove is connected with the lubricating oil groove through an air duct, an extrusion seat and an oil filling seat are respectively fixedly installed at the upper and lower ends of the extrusion lifting rod, a plurality of oil filling holes are provided around the oil filling seat, and a movable rotating sleeve on the upper part of the lifting screw rod is provided with a fixed seat; the lifting teeth on both sides are respectively connected with planetary reduction gears, and the inner ring of the planetary reduction gear is meshed with a unidirectional rotating wheel claw. The invention can easily pull the copper sleeve out of the copper sleeve mounting seat of the fan without an external auxiliary lifting device, and in the process of pulling out the copper sleeve, lubricating oil can be added around the copper sleeve mounting seat of the fan to reduce the friction between the copper sleeve mounting seat of the fan and the copper sleeve, thereby improving the success rate of pulling out and saving time and effort.

Description

Technical Field

[0001] The invention relates to the technical field of fan copper sleeve replacement devices, and in particular to a fan yaw copper sleeve replacement tool. Background Art

[0002] The yaw brake of the Envision wind turbine adopts the copper sleeve damping type, which provides brake damping by pre-tightening the copper sleeve bolts. However, the damping status needs to be checked regularly during maintenance. This inspection requires the copper sleeve bolts to be removed, but due to space constraints, the wrench cannot be used smoothly. The replacement process is time-consuming and labor-intensive, and the procedure is relatively cumbersome.

[0003] A hydraulic device for disassembling a TRT tapered pin with application number "CN201520530122.1" in the prior art includes a hydraulic system and a disassembly system; the hydraulic system includes an oil station, a hand pump and a bypass valve respectively connected to the oil station and a quick-change joint at both ends and connected in parallel with each other, a hollow oil cylinder connected to the quick-change joint, and an oil pipe of the hollow oil cylinder. The oil station contains hydraulic oil, and the hydraulic oil enters the hollow oil cylinder through the hand pump and the quick-change joint and enters the disassembly system through the oil pipe; the disassembly system includes a cylinder body , an upper cover fixedly connected to the cylinder body, a notch located on one side of the lower part of the cylinder body for accommodating the oil pipe, an oil hole located on the upper part of the notch for sealing connection with the oil pipe, a piston located in the center of the cylinder body and running through the entire cylinder body, the piston includes a piston head, a piston rod I, a piston shoulder, a shoulder step, a piston rod II and a threaded rod formed from top to bottom. The above device uses an M12 threaded hole punched on a cylindrical pin, screws the piston threaded rod onto the threaded hole, injects oil into the oil hole through a hydraulic system, and pulls out the conical pin after a certain oil pressure is reached. The conical pin can be pulled out quickly by using this hydraulic device. Since the hydraulic device has a simple structure and does not need to clamp the entire rotor on a lathe for processing, it can greatly improve production efficiency.

[0004] However, the hydraulic device for removing TRT conical pins still has obvious defects during use: 1. The device requires the hydraulic system to provide pressure to the cylinder to pull out the conical pin. Although it makes up for the laborious disadvantage of the traditional replacement method, the device cannot work normally without an external hydraulic system, thereby limiting the working environment of the hydraulic device for removing TRT conical pins; 2. The device can only provide upward traction to pull out the object, but during the replacement process, the copper sleeve is often rusted and cannot be easily pulled out. The forced extraction method may cause the traction tap to break, thereby increasing the difficulty of replacement. Summary of the invention

[0005] The object of the present invention is to provide a tool for replacing a yaw copper sleeve of a wind turbine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The utility model discloses a tool for replacing a yaw copper sleeve of a fan, comprising a tool seat, wherein a lubricating oil groove, an air pressure groove and a copper sleeve extraction hole are respectively provided on the tool seat, a spring air bag is fixedly installed inside the air pressure groove, a one-way air inlet valve and a one-way air outlet valve are respectively installed on the top and bottom of the spring air bag, the top of the spring air bag is also fixedly connected to an extrusion connecting rod, the bottom of the air pressure groove is connected with the lubricating oil groove through an air passage, the bottom of the lubricating oil groove is connected with the copper sleeve extraction hole through an oil supply passage, an extrusion lifting rod is movably inserted in the copper sleeve extraction hole, an extrusion seat and an oil filling seat are respectively fixedly installed at the upper and lower ends of the extrusion lifting rod, a plurality of oil filling holes are provided around the oil filling seat, the oil filling hole is connected with the oil inlet hole through a passage, the oil inlet hole is movably matched with the oil supply passage, a screw rod path is provided in the extrusion lifting rod, the extrusion seat and the oil filling seat, a lifting screw rod is movably inserted in the screw rod path, and a fixed seat is provided for a movably rotating sleeve on the upper part of the lifting screw rod;

[0008] The extrusion lifting rod is also provided with lifting teeth on both sides of the oil inlet hole, and the lifting teeth on both sides are respectively connected to the planetary reduction gear, the inner ring of the planetary reduction gear is meshed with the one-way rotating wheel claw, and the one-way rotating wheel claws on both sides are movably inserted with a pulling rod on the wheel axle, and the pulling rod is also movably cooperated with the extrusion connecting rod.

[0009] Preferably, a plurality of the oil filling holes are fixedly installed with a compression spring, and the other end of the compression spring is fixedly installed with a compression sponge head.

[0010] Preferably, the ends of the pull rods on both sides away from the tooling seat are wrapped with anti-slip sleeves.

[0011] Preferably, a threaded hole matching with the external thread of the sealing knob is provided on the upper portion of the lubricating oil groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention saves time and effort, and the copper sleeve can be easily pulled out from the fan copper sleeve mounting seat without an external auxiliary lifting device, which greatly saves replacement time;

[0014] 2. In the process of extracting the copper sleeve, the present invention can also add lubricating oil around the fan copper sleeve mounting seat to reduce the friction between the fan copper sleeve mounting seat and the copper sleeve, promote the smooth extraction of the copper sleeve, prevent the screw rod from breaking during the rigid extraction process, and improve the extraction success rate.

[0015] The present invention can easily pull out the copper sleeve from the fan copper sleeve mounting seat without an external auxiliary lifting device. In the process of pulling out the copper sleeve, lubricating oil can be added around the fan copper sleeve mounting seat to reduce the friction between the fan copper sleeve mounting seat and the copper sleeve, thereby improving the pulling success rate and saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the extrusion lifting rod of the present invention;

[0018] Figure 3 It is a cross-sectional schematic diagram of a tooling seat of the present invention;

[0019] Figure 4 It is a schematic diagram of the installation structure of the one-way rotating claw of the present invention;

[0020] Figure 5 It is a schematic diagram of the installation structure of the extruded sponge head of the present invention.

[0021] In the figure: 1 tooling seat, 2 lubricating oil groove, 3 air pressure groove, 4 copper sleeve extraction hole, 5 spring airbag, 6 one-way air inlet valve, 7 one-way air outlet valve, 8 extrusion connecting rod, 9 air channel, 10 oil supply channel, 11 extrusion lifting rod, 12 extrusion seat, 13 oil filling seat, 14 oil filling hole, 15 oil inlet hole, 16 screw rod channel, 17 lifting screw rod, 18 fixed seat, 19 lifting teeth, 20 planetary reduction gear, 21 one-way rotating wheel claw, 22 pull rod, 23 sealing knob, 24 extrusion spring, 25 extrusion sponge head, 26 anti-slip sleeve, 27 copper sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-5 , the present invention provides a technical solution:

[0024] A tool for replacing a yaw copper sleeve of a fan comprises a tool seat 1, on which a lubricating oil groove 2, an air pressure groove 3 and a copper sleeve extraction hole 4 are respectively provided, a spring airbag 5 is fixedly installed inside the air pressure groove 3, a one-way air inlet valve 6 and a one-way air outlet valve 7 are respectively installed on the top and bottom of the spring airbag 5, the top of the spring airbag 5 is also fixedly connected to an extrusion connecting rod 8, the bottom of the air pressure groove 3 is connected to the lubricating oil groove 2 through an air channel 9, the bottom of the lubricating oil groove 2 is connected to the copper sleeve extraction hole 4 through an oil supply channel 10, and the copper sleeve extraction hole 4 is connected to the copper sleeve extraction hole 4. An extrusion lifting rod 11 is movably inserted inside, and an extrusion seat 12 and an oil filling seat 13 are fixedly installed at the upper and lower ends of the extrusion lifting rod 11 respectively. A plurality of oil filling holes 14 are opened around the oil filling seat 13, and the oil filling hole 14 is connected with the oil inlet hole 15 through a channel. The oil inlet hole 15 is movably matched with the oil supply channel 10. A screw rod 16 is opened in the extrusion lifting rod 11, the extrusion seat 12 and the oil filling seat 13, and a lifting screw rod 17 is movably inserted in the screw rod 16, and a fixed seat 18 is movably swivel-covered on the upper part of the lifting screw rod 17;

[0025] The lubricating oil groove 2 is filled with lubricating oil into the copper sleeve mounting seat of the fan, thereby reducing the friction between the copper sleeve 27 and the copper sleeve mounting seat, and facilitating the removal of the copper sleeve 27. The spring airbag 5 in the air pressure groove 3 is used to provide pressure for pumping out the lubricating oil groove 2. By filling gas into the lubricating oil groove 2, the internal air pressure is made greater than the external air pressure, and the lubricating oil is pumped out. The spring inside the spring airbag 5 causes the spring airbag 5 to open without external force. When the squeezing connecting rod 8 squeezes the spring airbag 5, the gas inside the spring airbag 5 enters the lubricating oil groove 2 through the one-way air outlet valve 7 and the airway 9. When the spring airbag 5 is free from external force, the squeezed spring airbag 5 recovers under the action of the internal spring, and the gas enters the spring airbag 5 through the one-way air inlet valve, cooperates with the threaded hole opened on the copper sleeve 27 through the lifting screw 17, and then drives the lifting screw 17 to move upward by squeezing the lifting rod 11, thereby pulling the copper sleeve 27 out of the copper sleeve mounting seat.

[0026] The extrusion lifting rod 11 is also provided with lifting teeth 19 on both sides of the oil inlet hole 15. The lifting teeth 19 on both sides are respectively connected to the planetary reduction gear 20. The inner ring of the planetary reduction gear 20 is meshed with the one-way rotating wheel claw 21. The one-way rotating wheel claw 21 on both sides has a pull rod 22 movably inserted on the wheel axle, and the pull rod 22 is also movably cooperated with the extrusion connecting rod 8.

[0027] The pulling rod 22 is pulled back and forth around the axle of the one-way rotating wheel claw 21. When the wheel claw of the one-way rotating wheel claw 2 is engaged with the teeth of the inner ring of the planetary reduction gear 2, the one-way rotating wheel claw 21 rotates to drive the planetary reduction gear 2 to rotate. Conversely, the one-way rotating wheel claw 21 rotates while the planetary reduction gear 2 does not move. By fixing the axis of the transition wheel of the planetary reduction gear 2, when the inner ring of the planetary reduction gear 2 rotates, the outer ring of the planetary reduction gear 2 rotates with it. The linear speed of the gear transmission can be reduced through the planetary reduction gear 2, thereby increasing the torque. The lifting rod 11 is lifted upward by the outer ring of the planetary reduction gear 2, and the lifting screw 17 is driven by the lifting rod 11 to finally pull out the copper sleeve 27.

[0028] As a preferred embodiment, a plurality of oil filling holes 14 are fixedly installed with an extrusion spring 24, and a extrusion sponge head 25 is fixedly installed at the other end of the extrusion spring 24. Through the arrangement of the extrusion spring 24, the extrusion sponge head 25 can be extended and retracted in the oil filling hole 14, so that it can adapt to copper sleeve mounting seats with different inner diameters, ensuring that the extrusion sponge head 25 is matched with the inner diameter of the copper sleeve mounting seat, so that the lubricating oil flowing out of the lubricating oil groove 2 can flow into the gap between the copper sleeve 27 and the copper sleeve mounting seat through the inner diameter of the copper sleeve mounting seat.

[0029] As a preferred embodiment, the ends of the pulling rods 22 on both sides away from the tooling seat 1 are wrapped with anti-slip sleeves 26. The provision of the anti-slip sleeves 26 can increase the friction force when the staff pulls the rods.

[0030] As a preference, a threaded hole that cooperates with the external thread of the sealing knob 23 is opened on the upper part of the lubricating oil groove 2. The sealing knob 23 allows the lubricating oil groove 2 to maintain a closed environment, thereby ensuring that the lubricating oil groove 2 can be filled with oil normally. At the same time, unscrewing the sealing knob 23 can add lubricating oil to the inside.

[0031] Working principle: Place the tooling seat 1 on the copper sleeve mounting seat, so that the extrusion lifting rod 11 extends to the inside of the copper sleeve mounting seat, so that the extrusion lifting rod 11 contacts the top of the copper sleeve 27, then insert the lifting screw 17 into the extrusion lifting rod 11 through the screw channel 16, and screw the lifting screw 17 into the screw hole in the middle of the copper sleeve 27, then screw the fixing seat 18 from the upper part of the lifting screw 17, so that the fixing seat 18 contacts the extrusion seat 12, then insert the pull rod 22 into the rotating shaft of the one-way rotating wheel claw 21, and pull the pull rod 22 up and down along the rotating shaft of the one-way rotating wheel claw as the center of the circle. The pull rod 22 reciprocates to squeeze the extrusion connecting rod 8, and the extrusion connecting rod 8 squeezes the spring airbag 5 so that the inside of the spring airbag 5 The gas is able to enter the lubricating oil groove 2, and the air pressure in the lubricating oil groove 2 increases, so that the internal lubricating oil enters the oil inlet hole 15 through the oil supply channel 10, and finally flows out through the oil filling hole 14, thereby lubricating the gap between the copper sleeve 27 and the copper sleeve mounting seat. Synchronously, the reciprocating rotation of the pull rod 22 drives the reciprocating rotation of the one-way rotating claw 21, and the reciprocating rotation of the one-way rotating claw 21 drives the planetary reduction gear 20 to rotate unidirectionally. The unidirectional rotation of the planetary reduction gear 20 drives the extrusion lifting rod 11 to rise, and the rising of the extrusion lifting rod 11 drives the extrusion seat 12 to rise, and the fixing seat 18 is pushed by the extrusion seat 12 to pull the lifting screw 17, and finally the copper sleeve 27 is pulled out of the copper sleeve mounting seat by the traction of the lifting screw 17.

[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 tool for replacing a yaw copper sleeve of a wind turbine, comprising a tool seat (1), characterized in that: The tooling seat (1) is provided with a lubricating oil groove (2), an air pressure groove (3) and a copper sleeve extraction hole (4), respectively; a spring airbag (5) is fixedly installed inside the air pressure groove (3), a one-way air inlet valve (6) and a one-way air outlet valve (7) are installed at the top and bottom of the spring airbag (5), respectively; the top of the spring airbag (5) is also fixedly connected to an extrusion connecting rod (8); the bottom of the air pressure groove (3) is connected to the lubricating oil groove (2) through an air channel (9), the bottom of the lubricating oil groove (2) is connected to the copper sleeve extraction hole (4) through an oil supply channel (10), and an extrusion lifting device is movably inserted in the copper sleeve extraction hole (4). The extrusion lifting rod (11) is fixedly provided with an extrusion seat (12) and an oil filling seat (13) at the upper and lower ends of the extrusion lifting rod (11), respectively. The oil filling seat (13) is provided with a plurality of oil filling holes (14) around it. The oil filling holes (14) are connected with an oil inlet hole (15) through a channel. The oil inlet hole (15) is movably matched with an oil supply passage (10). The extrusion lifting rod (11), the extrusion seat (12) and the oil filling seat (13) are all provided with a screw rod path (16). A lifting screw rod (17) is movably inserted in the screw rod path (16). A fixed seat (18) is movably rotatably sleeved on the upper part of the lifting screw rod (17); The extrusion lifting rod (11) is also provided with lifting teeth (19) on both sides of the oil inlet hole (15), and the lifting teeth (19) on both sides are respectively connected to the planetary reduction gear (20), and the inner ring of the planetary reduction gear (20) is meshed with the one-way rotating claw (21), and the wheel axles of the one-way rotating claws (21) on both sides are movably inserted with a trigger rod (22), and the trigger rod (22) is also movably matched with the extrusion connecting rod (8); A plurality of the oil filling holes (14) are fixedly installed with a squeezing spring (24), and a squeezing sponge head (25) is fixedly installed at the other end of the squeezing spring (24); The ends of the actuating rods (22) on both sides away from the tooling seat (1) are wrapped with anti-slip sleeves (26).

2. A wind turbine yaw copper sleeve replacement tool according to claim 1, characterized in that: The upper part of the lubricating oil groove (2) is provided with a threaded hole which matches with the external thread of the sealing knob (23).

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