CN215711251U

CN215711251U - Hoisting equipment for replacing motor in fan cabin

Info

Publication number: CN215711251U
Application number: CN202120274627.1U
Authority: CN
Inventors: 张安文; 赵军; 祖家伟; 杨振飚; 刘志
Original assignee: China Resources New Energy Mingguang Wind Energy Co ltd
Current assignee: China Resources New Energy Mingguang Wind Energy Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2022-02-01
Anticipated expiration: 2031-01-30

Abstract

The utility model belongs to the technical field of fan maintenance, and particularly discloses a hoisting device for replacing a motor in a fan cabin, which comprises an installation seat, wherein the surface of the installation seat is provided with a plurality of bolt holes, the top end of the installation seat is welded with a support column, the top end of the support column is provided with a fixed plate, the top end of the fixed plate is rotatably provided with a rotating seat through a slewing bearing, the periphery of the rotating seat is circumferentially distributed with a plurality of limiting mechanisms, the top end of the rotating seat is fixedly provided with a connecting seat, the connecting seat is provided with a connecting arm, the connecting arm is connected with an extension arm through a telescopic mechanism, and the tail end of the extension arm is provided with a chain block; the motor disassembling device is simple in overall structure, convenient for workers to operate, capable of assisting in disassembling and carrying the motor, capable of reducing labor intensity of the workers and capable of improving disassembling efficiency and operation safety.

Description

Hoisting equipment for replacing motor in fan cabin

Technical Field

The utility model relates to the technical field of fan maintenance, in particular to a hoisting device for replacing a motor in a fan cabin.

Background

The kinetic energy of wind is converted into mechanical kinetic energy, and then the mechanical energy is converted into electric kinetic energy, namely wind power generation. The principle of wind power generation is that wind power drives windmill blades to rotate, and then the rotating speed is increased through a speed increaser, so that a generator is promoted to generate electricity. The motor can be installed in the wind power fan cabin, for example, motors such as a gear box oil pump motor, a generator heat dissipation motor and a yaw motor are installed, the damage rate of the motor can be gradually increased along with the increase of the running time of the fan, and the motor needs to be replaced every year. At present, when the motor is replaced, because the internal space of a fan cabin is narrow and small, the motor needs to be replaced and carried by three to four persons under the condition of no assistance of hoisting equipment, and the potential safety hazard of great mechanical injury exists.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a lifting device for replacing a motor in a nacelle of a wind turbine, which solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a hoisting equipment for changing motor in fan cabin, includes the mount pad, a plurality of bolt holes have been seted up on the mount pad surface, the welding of mount pad top has the pillar, the pillar top is provided with the fixed plate, the fixed plate top is rotated through slewing bearing and is installed and rotate the seat, it distributes around distributing to rotate the seat periphery has a plurality of stop gear, it is fixed with the connecting seat to rotate the seat top, be provided with the linking arm on the connecting seat, be connected with the extension arm through telescopic machanism on the linking arm, chain block is installed to the end of extension arm.

Preferably, a motor is installed inside the strut, and the output end of the motor is connected with the rotating seat.

Preferably, the connecting arm is rotatably installed on the connecting seat through a pin shaft, a fixing hole is formed in one side, away from the chain block, of the surface of the connecting arm, a plurality of positioning holes corresponding to the fixing hole are formed in the surface of the connecting seat, and the plurality of positioning holes are evenly distributed around the connecting position of the pin shaft and the connecting seat by taking the connecting position of the pin shaft and the connecting seat as a center.

Preferably, telescopic machanism includes the screw rod, the screw rod rotates and installs inside the linking arm, extension arm slidable mounting is in the linking arm, the one end surface that chain block was kept away from to the extension arm is seted up with the corresponding thread groove of screw rod, the one end that the extension arm was kept away from to the screw rod is installed from bevel gear, rotate on the lateral wall of linking arm and install the dwang, the fixed cover in dwang periphery is equipped with drive bevel gear, drive bevel gear is connected with from bevel gear meshing, the tip of dwang extends to the linking arm outside to fixed mounting has the hand wheel.

Preferably, stop gear is including the installation piece, the installation piece is through a plurality of bolt fixed mounting on the fixed plate, installation piece top is fixed with a plurality of guide arms, sliding sleeve is equipped with the slider on the guide arm, be connected with reset spring between slider and the installation piece, reset spring suit is in the guide arm periphery, the slider bottom bonds there is the friction disc, the bottom mounting of slider has last electromagnet, the installation piece top is fixed with down the electro-magnet.

Compared with the prior art, the utility model has the beneficial effects that: the orientation of the device can be adjusted by arranging the rotating seat, and the limiting mechanism is arranged, so that the rotating seat can be limited and fixed, the stability during hoisting operation is improved, and the rotating seat is prevented from freely rotating; the inclination of linking arm can be adjusted to can adjust the whole length of linking arm and extension arm, thereby adapt to the cabin condition of difference. The motor disassembling device is simple in overall structure, convenient for workers to operate, capable of assisting in disassembling and carrying the motor, capable of reducing labor intensity of the workers and capable of improving disassembling efficiency and operation safety.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic structural view of a driving bevel gear and a driven bevel gear in a state of being engaged with each other according to the present invention;

fig. 3 is a schematic structural view of the limiting mechanism of the present invention.

In the figure: 1-mounting seat, 2-supporting column, 3-fixing plate, 4-rotating seat, 5-motor, 6-limiting mechanism, 7-connecting seat, 8-connecting arm, 9-extending arm, 10-chain block, 11-pin shaft, 12-locating hole, 13-screw rod, 14-driven bevel gear, 15-rotating rod, 16-hand wheel, 17-driving bevel gear, 18-mounting block, 19-sliding block, 20-guide rod, 21-reset spring, 22-lower electromagnet, 23-upper electromagnet and 24-friction plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a hoisting equipment for changing motor in fan cabin, includes mount pad 1, a plurality of bolt holes have been seted up on 1 surface of mount pad, the welding of 1 top of mount pad has

pillar

2, 2 tops of pillar are provided with

fixed plate

3, 3 tops of fixed plate are rotated through slewing bearing and are installed and rotate seat 4, it has a plurality of stop gear 6 to rotate 4 peripheries of seat and surround the distribution, it is fixed with connecting seat 7 to rotate 4 tops of seat, be provided with linking arm 8 on the connecting seat 7, be connected with extension arm 9 through telescopic machanism on the linking arm 8, chain block 10 is installed to the end of extension arm 9.

The electric motor 5 is arranged in the support column 2, the output end of the electric motor 5 is connected with the rotating seat 4, the rotating seat 4 can be driven to rotate through the electric motor 5, the orientation of the chain block 10 is adjusted, and the storage battery can be arranged in the support column 2 due to the hollow shape of the support column to supply power for the electric motor 5 and other parts, so that the complex operation of additionally installing cables is avoided; because the device needs to be used in narrow and small cabin, size itself is less, and motor 5 need adopt miniature motor, for avoiding this type of motor unstable problem of work under the great load, also can not use motor drive, but directly adjust the orientation with the mode of artifical manual rotation seat 4.

The connecting arm 8 is rotatably installed on the connecting seat 7 through the pin shaft 11, a fixing hole is formed in one side, far away from the chain block 10, of the surface of the connecting arm 8, a positioning hole 12 corresponding to the fixing hole is formed in the surface of the connecting seat 7, the positioning hole 12 is formed in a plurality of positions, the plurality of positioning holes 12 are centered at the joint of the pin shaft 11 and the connecting seat 7 and evenly distributed around the connecting hole, the connecting arm 8 can rotate for a certain angle around the pin shaft 11, after the connecting arm rotates to a proper angle, the fixing hole in the surface of the connecting arm 8 is right opposite to the certain positioning hole 12, the positioning pin is inserted into the positioning hole 12 at the moment, the end of the positioning pin extends into the fixing hole, and a limiting effect on the connecting arm 8 is formed.

The telescopic mechanism comprises a screw 13, the screw 13 is rotatably installed inside the connecting arm 8, the extending arm 9 is slidably installed in the connecting arm 8, a thread groove corresponding to the screw 13 is formed in the surface of one end, away from the chain block 10, of the extending arm 9, a driven bevel gear 14 is installed at one end, away from the extending arm 9, of the screw 13, a rotating rod 15 is rotatably installed on the side wall of the connecting arm 8, a driving bevel gear 17 is fixedly sleeved on the periphery of the rotating rod 15, the driving bevel gear 17 is meshed with the driven bevel gear 14 and is connected with the driven bevel gear 14, the end portion of the rotating rod 15 extends to the outside of the connecting arm 8, a hand wheel 16 is fixedly installed on the end portion of the connecting arm, the hand wheel 16 is rotated to drive the driving bevel gear 17 to rotate, the driving bevel gear 17 is meshed with the driven bevel gear 14 and is connected with the driving screw 13 to rotate, and the extending arm 9 can linearly slide back and forth in the connecting arm 8 along with the rotation of the screw 13, the overall length of the connecting arm 8 and the extension arm 9 is varied.

The limiting mechanism 6 comprises a mounting block 18, the mounting block 18 is fixedly mounted on the fixed plate 3 through a plurality of bolts, a plurality of guide rods 20 are fixed at the top end of the mounting block 18, a sliding block 19 is slidably sleeved on the guide rods 20, a return spring 21 is connected between the sliding block 19 and the mounting block 18, the return spring 21 is sleeved on the periphery of the guide rods 20, a friction plate 24 is bonded at the bottom end of the sliding block 19, an upper electromagnet 23 is fixed at the bottom end of the sliding block 19, a lower electromagnet 22 is fixed at the top end of the mounting block 18, the sliding block 19 is far away from the rotating base 4 under the elastic force of the return spring 21 in a normal state, when the rotating base 4 needs to be limited, the upper electromagnet 23 and the lower electromagnet 22 are started, the two electromagnets are electrified to generate magnetic force and attract each other, so that the sliding block 19 overcomes the elastic force of the return spring 21 to move downwards to drive the friction plate 24 to be tightly pressed on the surface of the rotating base 4, the free rotation of the rotating seat 4 is avoided by utilizing the friction force, and the stability during the hoisting operation is improved.

The working principle is as follows:

during the use, fix mount pad 1 somewhere in the cabin through a plurality of bolts, rotate and rotate seat 4 and make chain block 10 towards the position of waiting to dismantle the motor, it is spacing to rotate seat 4 to fix through a plurality of stop gear 6 of rethread, rotate linking arm 8, the inclination of adjustment linking arm 8 is to suitable position, rethread locating pin is fixed linking arm 8 and connecting seat 7, rotatory hand wheel 16 adjusts the length that extension arm 9 stretches out linking arm 8, make chain block 10 move the top of waiting to dismantle the motor, hoist the motor through chain block 10, dismantle the operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hoisting device for replacing a motor in a nacelle of a wind turbine, comprising a mounting base (1), characterized in that: a plurality of bolt holes have been seted up on mount pad (1) surface, the welding of mount pad (1) top has pillar (2), pillar (2) top is provided with fixed plate (3), fixed plate (3) top is rotated through slewing bearing and is installed and rotate seat (4), it has a plurality of stop gear (6) to rotate seat (4) periphery to encircle to distribute, it is fixed with connecting seat (7) to rotate seat (4) top, be provided with linking arm (8) on connecting seat (7), be connected with extension arm (9) through telescopic machanism on linking arm (8), chain block (10) are installed to the end of extension arm (9).

2. A lifting device for replacing a motor in a wind turbine nacelle according to claim 1, wherein: the support column (2) is internally provided with a motor (5), and the output end of the motor (5) is connected with the rotating seat (4).

3. A lifting device for replacing a motor in a wind turbine nacelle according to claim 1, wherein: the connecting arm (8) is rotatably installed on the connecting seat (7) through the pin shaft (11), a fixing hole is formed in one side, away from the chain block (10), of the surface of the connecting arm (8), a plurality of positioning holes (12) corresponding to the fixing hole are formed in the surface of the connecting seat (7), the positioning holes (12) are formed in the plurality of positioning holes, and the connecting positions of the pin shaft (11) and the connecting seat (7) are used as centers of the plurality of positioning holes (12) to be uniformly distributed around the connecting holes.

4. A lifting device for replacing a motor in a wind turbine nacelle according to claim 1, wherein: telescopic machanism includes screw rod (13), screw rod (13) rotate and install inside linking arm (8), extension arm (9) slidable mounting is in linking arm (8), the one end surface of chain block (10) is kept away from in extension arm (9) has seted up the thread groove corresponding with screw rod (13), the one end that extension arm (9) were kept away from in screw rod (13) is installed from bevel gear (14), rotate on the lateral wall of linking arm (8) and install dwang (15), the fixed cover of dwang (15) periphery is equipped with drive bevel gear (17), drive bevel gear (17) are connected with driven bevel gear (14) meshing, the tip of dwang (15) extends to linking arm (8) outside to fixed mounting has hand wheel (16).

5. A lifting device for replacing a motor in a wind turbine nacelle according to claim 1, wherein: stop gear (6) are including installation piece (18), installation piece (18) are through a plurality of bolt fixed mounting on fixed plate (3), installation piece (18) top is fixed with a plurality of guide arms (20), sliding sleeve is equipped with slider (19) on guide arm (20), be connected with reset spring (21) between slider (19) and installation piece (18), reset spring (21) suit is in guide arm (20) periphery, slider (19) bottom bonds and has friction disc (24), the bottom mounting of slider (19) has last electromagnet (23), installation piece (18) top is fixed with down electromagnet (22).