CN211666849U

CN211666849U - Fan impeller butt joint self-locking and self-unlocking system with air bag auxiliary holding device

Info

Publication number: CN211666849U
Application number: CN201921704777.0U
Authority: CN
Inventors: 程赫; 刘建琴; 吴晨宇; 陶商颖; 王佳童; 于茜; 蔡智兴; 付玉琴
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-10-13
Anticipated expiration: 2029-10-12

Abstract

The utility model relates to a fan impeller butt joint self-locking and self-unlocking system with an air bag auxiliary holding device, which comprises an annular bracket, a locking arm device, a power device for driving the locking arm to move circumferentially and an air bag auxiliary holding device, wherein the annular bracket comprises a support plate (20) and two pairs of annular slide rails (5) taking hollow slide rails as main bodies; the locking arm device comprises two pairs of locking arms, each pair of locking arms comprises a sliding plate (6) and two single arms fixed on two sides of the sliding plate (6), and the shapes of the two single arms are matched with the shapes of the hollow sliding rails of the pair of annular sliding rails (5) and can move along the circumferential direction of the corresponding annular sliding rails (5); the end parts of two single arms of one pair of locking arms are respectively provided with a toothed holding claw (15), and the end parts of two single arms of the other pair of locking arms are respectively provided with a holding claw (16) with a shell. The utility model has the advantages of the butt joint is reliable the precision is high.

Description

Fan impeller butt joint self-locking and self-unlocking system with air bag auxiliary holding device

Technical Field

The utility model relates to a fan wheel installation butt joint auxiliary device.

Background

Protects the common ecological environment of human beings, realizes green sustainable development, and China vigorously pushes forward the development of renewable energy sources. The wind energy is developed and utilized as green clean energy, plays an important role in increasing energy supply and adjusting energy structure, and the construction of wind power plants is always the key point of national energy input.

A wind farm includes dozens of wind turbines, and the installation of each wind turbine needs to be completed by hoisting with a large crane, and generally includes: tower cylinder hoisting, cabin and motor hoisting and impeller integral hoisting. Wherein, fan wheel assembly installation is usually in the high altitude more than 80 meters, and through operating the 60 bolts of the upper and lower, left and right sides adjustment impeller wheel hub periphery of hoist and penetrate the screw, the degree of difficulty is big, the risk is high. According to a fan design manual and the lifting process specification, when the impeller assembly is in butt joint with a fan cabin hub, auxiliary butt joint is needed, and therefore the precision is guaranteed. Under the condition of lacking necessary equipment, the butt joint process of the fan can be assisted only through manpower, and the mode is time-consuming, labor-consuming and high in cost, and the butt joint precision of the large impeller is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can recycle, install reliable auto-lock self-unlocking system that is used for fan wheel butt joint. The technical scheme is as follows:

a fan impeller butt joint self-locking and self-unlocking system with an air bag auxiliary holding device comprises an annular bracket and a locking arm device, and is characterized by also comprising a power device and an air bag auxiliary holding device which drive the locking arm to move circumferentially, wherein,

the annular support comprises a support plate 20 and two pairs of annular slide rails 5 taking hollow slide rails as main bodies, cylindrical rollers 23 are arranged in the annular slide rails 5, and the two pairs of annular slide rails 5 are respectively positioned on two sides of the support plate 20;

the locking arm device comprises two pairs of locking arms, each pair of locking arms comprises a sliding plate 6 and two single arms fixed on two sides of the sliding plate 6, the shapes of the two single arms are matched with the shapes of the hollow sliding rails of the pair of annular sliding rails 5 and can move along the circumferential direction of the corresponding annular sliding rails 5, and the stroke resistance is reduced through the cylindrical rollers 23; the end parts of two single arms of one pair of locking arms are respectively provided with a toothed holding claw 15, the end parts of two single arms of the other pair of locking arms are respectively provided with a holding claw 16 with a shell, and the corresponding toothed holding claw 15 is meshed with the holding claw 16 with the shell in a tooth shape;

the shell holding claw 16 comprises a locking motor 19, a cam 18 and locking teeth 17, the locking teeth 17 are meshed with teeth on the toothed holding claw 15, and the locking motor 19 drives the locking teeth 17 to move through the cam 18 so as to realize locking and self-unlocking;

the power device for driving the locking arm to move circumferentially comprises a gear set 3 and a motor 4, the motor 4 is fixedly connected with the supporting plate, the motor 4 rotates to drive the gear set 3, and the gear set 3 drives the sliding plate 6 to move circumferentially along the annular sliding rail 5;

the air bag auxiliary holding device comprises an air pump 11, an air tank 12, a conduit 13 and an air bag 14, wherein the air bag 14 is arranged along the inner sides of the shell-contained holding claws 16 and the toothed holding claws 15 in a mode that the air bag 14 is arranged along the conduit 13 and is fully distributed on the inner side surfaces of the shell-contained holding claws 16 and the toothed holding claws 15, and the air bag 14 is connected with the air pump 11 and the air tank 12 through the conduit 13; the air bag 14 is inflated and attached to the surface of the nacelle 21 to prevent the surface of the nacelle 21 from being damaged and increase friction.

The utility model discloses to fan wheel installation characteristics, compare with prior art and have following advantage:

1. time and labor are saved, the cost is lower, and the reliable installation of the large impeller can be ensured.

2. The self-unlocking device ensures the recycling of the device.

3. The quality is little, reduces the cost of labor, avoids the potential safety hazard that manpower installation brought.

Drawings

FIG. 1 is the overall structure diagram of the self-unlocking fan impeller installation docking auxiliary system of the present invention

The drawings illustrate the following:

1 dust-proof box, 2 hydraulic motor, 3 gear group, 4 electric motor, 5 annular slide rail, 6 slide plate, 7 hydraulic arm, 8 hydraulic box, 9 push rod, 10 embracing claw body, 11 air pump, 12 air tank, 13 conduit, 14 air bag, 15 toothed embracing claw, 16 shell embracing claw, 20 support plate

FIG. 2 shows the self-locking device of the self-unlocking fan impeller

The drawings illustrate the following:

15 toothed holding claw, 16 shell holding claw, 17 locking tooth, 18 cam and 19 locking motor

FIG. 3 shows the relationship between the inside of the hydraulic tank and the impeller of the self-unlocking blower

The drawings illustrate the following:

7 hydraulic arm, 9 push rod

FIG. 4 is a schematic structural view of the self-unlocking upper slideway of the ring support of the fan impeller of the present invention

The drawings illustrate the following:

5 annular slide rail, 23 cylindrical roller and 24 sealing cover

FIG. 5 shows the operation posture of the self-unlocking blower wheel mounting and docking auxiliary system of the present invention

The drawings illustrate the following:

21 fan cabin, 22 fan impellers, butt joint holding claw

Detailed Description

The present invention will be described in further detail with reference to the drawings and embodiments, and the embodiments described herein are only for explaining the present invention and are not intended to limit the scope of the present invention.

With reference to the above figures, an embodiment of a self-unlocking blower wheel installation and docking assistance system for installing a wheel is provided.

The system (figure 1) is a self-unlocking fan impeller installation butt joint auxiliary system, and is mainly used for automatically centering and automatically arranging an impeller.

The working posture of the system is shown in figure 5.

As shown in figure 1, the utility model discloses a can be from fan wheel installation butt joint auxiliary system of unblock, major structure is that dust proof box, ring carrier, butt joint embrace claw, locking device four bibliographic categories divide and constitute. The dustproof box is composed of a dustproof box body 1, a dustproof box cover (hidden), a hydraulic motor 2, a gear set 3, a motor 4, an air pump 11 and an air tank 12.

The annular bracket comprises two annular slide rails 5 and cylindrical rollers 23 which are connected with each other.

The locking arm device mainly comprises a catheter 13, an air bag 14, a toothed holding claw 15, a shell holding claw 16, locking teeth 17, a cam 18 and a locking motor 19.

The butt-joint holding claw mainly comprises a holding claw body 10, a hydraulic arm 7, a hydraulic tank 8 and a push rod 9.

The system comprises a dustproof box 1, wherein the dustproof box 1 is fixed on an annular slide rail 5 through screws, a gear set 3 is fixed on a rotating shaft through a shaft hole in an interference fit mode, the rotating shaft is also fixed on the dustproof box 1 through a shaft hole in an interference connection mode, and a motor 4 is fixed on the right side of the rotating shaft of the gear set 3 through screws. The hydraulic motor 2 is fixed to the upper portion of the support plate 20 by screws, and the gas tank 12 and the gas pump 11 are fixed to the side of the upper cover by screws. The power device inside the dust-proof box 1 ensures that the belt shell holding claw 16 and the belt tooth holding claw 15 can be driven to move along the circumferential annular slide rail 5: the gear set 3 is used for reducing speed and increasing torque, the motor 4 rotates to drive the gear set 3, and the gear set 3 drives the sliding plate 6 to move along the circumferential direction of the annular sliding rail 5. Meanwhile, the air tank 12 and the air pump 11 ensure that the air bag 14 can be inflated, so that the air bag auxiliary holding device can work normally.

The system comprises an annular slide rail 5 and a main body internally provided with two hollow slide rails, wherein a belt shell holding claw 16 and a belt tooth holding claw 15 are assembled inside the annular slide rail 5 in a matched mode in the same shape, the stroke is circular arc, meanwhile, a cylindrical roller 23 is arranged inside the annular slide rail 5 to ensure that the stroke resistance is small, so that coaxial circumferential motion is carried out, a slide plate 6 is fixed on the side face of a locking arm device through welding, and a hydraulic tank 8 is fixed on the surface of the slide plate 6 through screws. In order to install the cylindrical roller 23, the cylindrical roller 23 is installed at the hollow part on the inner side of the annular slide rail 5, and the cylindrical roller 23 is prevented from sliding out through the interference fit between the sealing cover 24 and the annular slide rail 5.

The system comprises a locking arm device, a toothed holding claw 15 is matched with a belt shell holding claw 16 through tooth-shaped meshing, the lower end part of the belt shell holding claw 16 comprises a square box body, and a cam 18 and a locking motor 19 are fixed on the inner surface of the box body through axial welding. When the tooth-shaped meshing of the locking teeth 17 is finished, the locking arm device cannot move along the annular sliding rail 5, and the locking arm device ensures that the device has enough radial force during working, so that the annular sliding rail 5 is fixed on the surface of the engine room 21. Finally, the cam 18 is driven to rotate by the locking motor 19 so as to break the tooth-shaped engagement, and the locking arm device can move along the annular slide rail 5 so as to be automatically unlocked and retracted

The hydraulic clamping system comprises a clamping body 10, wherein the clamping body 10 is connected with the front surface of a hydraulic box 8 in a matched mode through a screw hole, a hydraulic arm 7 is arranged inside the hydraulic box 8, the rear side of the hydraulic arm 7 is fixed on the rear surface inside the hydraulic box 8 through a counter bore screw, and the front side of the hydraulic arm 7 is fixed on the rear surface of a push rod 9 through a screw. The hydraulic arm 7 pushes the push rod 9 and the claw holding body 10 to move horizontally, and the claw holding body 10 is mainly used for bearing a small part of the weight of the fan impeller and automatically and horizontally butting the impeller 22 with the engine room 21. The holding claw body 10 is positioned inside the hydraulic tank 8, and the hydraulic tank 8 is fixedly connected with the holding claw with shell 16 and the holding claw with teeth 15 which can move circumferentially, so that the holding claw body can follow the circumferential direction.

The system comprises an air bag auxiliary holding device, an air pump 11, an air tank 12, a conduit 13 and an air bag 14, wherein the air bag 14 is arranged along the inner sides of a holding claw 16 with a shell and a holding claw 15 with teeth, the non-inflatable end part of the air bag 14 is fixed by a screw, the arrangement mode is that the air bag 14 is arranged along the conduit 13 and is fully distributed on the inner side surfaces of the holding claw 16 with the shell and the holding claw 15 with teeth, the conduit 13 is arranged along the shape of a shell of the device, and the air bag 14 is connected with the air pump 11 and the air tank 12 through the. The air tank 12 and the air pump 11 are installed on the inner side plate of the dust-proof box 1 through screws to form a driving system, so that equipment can be prevented from being damaged, and a motor of the fan impeller auxiliary butt joint device can be prevented from being used.

The method for installing, guiding and butting the machine impeller specifically comprises the following steps:

the crane lifts the impeller 22 vertically to the front of the system, and at the same time, the system, located on the surface of the nacelle 21, starts to lock: the toothed holding claw 15 and the belt shell holding claw 16 move circumferentially along the two pairs of annular slide rails 5 of the annular support, when the toothed holding claw 15 is in contact with the belt shell holding claw 16, the locking teeth 17 are locked with the toothed holding claw 15, the air bag 14 expands to apply radial force, the air bag auxiliary holding device starts to work, and the system is guaranteed to be fixed on the surface of the engine room 21. Because the hydraulic tank 8, the toothed holding claw 15 and the shell holding claw 16 are in a follow-up relationship, the holding claw body 10 positioned in the hydraulic tank 8 is coaxial with the rotating shaft of the engine room 21, the holding claw body 10 and the push rod 9 are pushed by the hydraulic arm 7 to horizontally extend forwards to hold the impeller 22 and horizontally contract to complete the guide butt joint process of the engine room 21 and the impeller 22.

Based on the coaxial limiting technology, the design can ensure the rapidity and the accuracy of butt joint. The labor cost is reduced, and potential safety hazards caused by manual installation are avoided. The cost is low, the weight is small, and the self-unlocking device can enable the device to be recycled.

Claims

1. A fan impeller butt joint self-locking and self-unlocking system with an air bag auxiliary holding device comprises an annular bracket and a locking arm device, and is characterized by also comprising a power device and an air bag auxiliary holding device which drive the locking arm to move circumferentially, wherein,

the annular support comprises a support plate (20) and two pairs of annular slide rails (5) taking the hollow slide rails as main bodies, cylindrical rollers (23) are arranged in the annular slide rails (5), and the two pairs of annular slide rails (5) are respectively positioned on two sides of the support plate (20);

the locking arm device comprises two pairs of locking arms, each pair of locking arms comprises a sliding plate (6) and two single arms fixed on two sides of the sliding plate (6), the shapes of the two single arms are matched with the shapes of the hollow sliding rails of the pair of annular sliding rails (5) and can move along the circumferential direction of the corresponding annular sliding rails (5), and the stroke resistance is reduced through the cylindrical rollers (23); the end parts of two single arms of one pair of locking arms are respectively provided with a toothed holding claw (15), the end parts of two single arms of the other pair of locking arms are respectively provided with a holding claw (16) with a shell, and the corresponding toothed holding claw (15) is meshed with the holding claw (16) with the shell in a tooth shape;

the shell holding claw (16) comprises a locking motor (19), a cam (18) and locking teeth (17), the locking teeth (17) are meshed with teeth on the toothed holding claw (15), and the locking motor (19) drives the locking teeth (17) to move through the cam (18) so as to realize locking and self-unlocking;

the power device for driving the locking arm to move circumferentially comprises a gear set (3) and a motor (4), the motor (4) is fixedly connected with the supporting plate, the motor (4) rotates to drive the gear set (3), and the gear set (3) drives the sliding plate (6) to move circumferentially along the annular sliding rail (5);

the air bag auxiliary holding device comprises an air pump (11), an air tank (12), a conduit (13) and an air bag (14), wherein the air bag (14) is arranged along the inner sides of each shell-containing holding claw (16) and each tooth-containing holding claw (15) in a mode that the air bag (14) is arranged along the conduit (13) and is fully distributed on the inner side surfaces of the shell-containing holding claws (16) and the tooth-containing holding claws (15), and the air bag (14) is connected with the air pump (11) and the air tank (12) through the conduit (13); the air bag (14) is inflated and expanded to be attached to the surface of the cabin (21) so as to prevent the surface of the cabin (21) from being damaged and increase the friction force.