CN207728493U - A kind of driving chain of wind generating set structure - Google Patents

Abstract

The utility model discloses a kind of driving chain of wind generating set structures, including generator, shaft coupling, pedestal, gear-box and the fore bearing being placed in gear-box, rear bearing, main shaft, flange terminal pad；Bearing block rear portion is bolted with gear-box, and the bottom of bearing block is mounted on the base by bolt；Fore bearing, rear axle installation fit in main shaft front and rear ends；Projecting shaft bearing is connect by bolt with wheel hub outside main shaft front end, rear end is connect by bolt with flange terminal pad, flange terminal pad is connect by bolt with gearbox-case, gearbox-case is bolted with generator casing, and upper coupling is installed on rear side of generator, the torque for passing over gear-box passes to generator.The utility model has the advantages that compact-sized, reliable transmission, efficient, lighter in weight, transporting and hoisting maintenance etc. are at low cost.

Description

A kind of driving chain of wind generating set structure

Technical field

The utility model is related to the technical fields of renewable new energy wind power generation blower fan group, refer in particular to a kind of wind-force hair Motor group is driven chain structure.

Background technology

Currently, wind-power electricity generation as quickly grow, the clean energy resource generation mode with large-scale development foreground at It readjusts the energy structure, alleviate for many countries the important measure of environmental pollution.The transmission chain of wind power generating set is responsible for catch The wind energy obtained is converted into mechanical energy and passes to gen-set, driving chain of wind generating set structure and its speed-regulating controling mode It is the core of whole system, directly affects system performance, efficiency and the power quality of entire wind power generating set.It develops and selects It is a pith of wind-power electricity generation R ＆ D design with reliable for operation, efficient transmission chain system.

Invention content

The purpose of the utility model is to overcome the deficiencies in the prior art, it is proposed that a kind of compact-sized, reliable transmission, effect The driving chain of wind generating set structures at low cost such as rate height, lighter in weight, transporting and hoisting maintenance.

To achieve the above object, technical solution provided by the utility model is：A kind of driving chain of wind generating set knot Structure includes fore bearing, rear bearing, main shaft, bearing block, flange terminal pad, gear-box, generator, shaft coupling and use In the pedestal of supporting bearing base；The fore bearing, rear bearing, main shaft, flange terminal pad are placed in bearing block, the bearing The front end face both sides of seat are provided with impeller locking device, and the shell of the rear part and gear-box is detachably connected by bolt It connects, the bottom of the bearing block is removably mounted on by bolt on pedestal；The fore bearing, rear bearing are respectively assembled at master On the bearing installation position of transmission shaft front and rear ends, effect is to carry the transmission chain and impeller system weight of wind power generating set, The torque in an axial direction that impeller system generates is balanced, and rear is delivered torque to by the rotation of main shaft；The main transmission Axis is used to transmit the impeller torque of wind power generating set, is designed to hollow structure, was provided for signal wire, the power cord of needs Line passage realizes the pitch-controlled system inside wind generator unit wheel hub and power supply and communication signal between the slip ring of generator rear portion It transmits, projecting shaft bearing is detachably connected by bolt and wheel hub outside the front end of the main shaft, and its rear end passes through spiral shell The forward flange end face of bolt and flange terminal pad is detachably connected, the rear flange end face of the flange terminal pad by bolt with The shell of gear-box is detachably connected, and the flange terminal pad is designed to hollow structure, signal wire, power cord for needs Cable tray is provided, and required space is provided for the front lubricating pipe for being arranged in gear-box；The shell of the gear-box with The shell of generator is detachably connected by bolt, and upper coupling is installed on rear side of generator, for passing gear-box The torque passed passes to generator.

In the link position of the rear end of the main shaft and flange terminal pad, flexible or flexible body is set herein.

The bearing block is integral type casting structure.

The generator is magneto alternator.

Transmission chain installation fixed hole position, host lifting point are provided on the pedestal, bottom is reserved with yaw driving, yaw Brake, yaw bearing mounting hole position, are internally provided with cable trunking crane span structure.

The utility model compared with prior art, has the following advantages that and advantageous effect：

1, the utility model uses compact transmission structure technology route, and impeller, main shaft, gear-box, generator are compact Connection, shaft coupling is arranged in transmission chain rear portion, and simple in structure, overall dimensions small volume, easy for assemble or unload, will not be notable Increase the weight of transmission chain and occupied space, while easy to change when something goes wrong.

2, each critical piece uses high strength exploitation, main shaft and gear-box flanged joint, gear-box, generator When failure need to be dismantled, without lifting impeller, the excessively high risk of on-site hoisting cost is substantially reduced, while each component technology is ripe, It provides safeguard for the global reliability of unit.

3, main shaft is designed using duplex bearing transmission shaft, it is ensured that intensity and reliable transmission can effectively solve big MW class Base bearing intensity deficiency problem and the cost for substantially reducing gear-box base bearing, while ensureing that unit safety is reliable and stable.

4, transmission chain shelling machine shortens Path of Force Transfer at large diameter thin wall structure, improves overall stiffness, this structure can be Follow-up big megawatt of type exploitation is used as Technical Reference.

5, the connection of bulk metal shell, closed structure have good lightning protection conductive, adapt to high delay high corrosion area The features such as, especially offshore environmental conditions.

Description of the drawings

Fig. 1 is the driving chain of wind generating set structural schematic diagram of the utility model.

Fig. 2 is the partial sectional view of Fig. 1.

Specific implementation mode

With reference to specific embodiment, the utility model is described in further detail.

As depicted in figs. 1 and 2, the driving chain of wind generating set structure that the present embodiment is provided, include fore bearing 2, Bearing 5, main shaft 4, bearing block 3, flange terminal pad 6, gear-box 7, generator 8, shaft coupling 9 and it is used to support bearing afterwards The pedestal 10 of seat 3.The fore bearing 2, rear bearing 5, main shaft 4, flange terminal pad 6 are placed in bearing block 3, the bearing block 3 design for integral type casting structure, and front end face both sides are provided with impeller locking device, the shell of the rear part and gear-box 7 It is detachably connected by high-strength bolt, the bottom of the bearing block 3 is removably mounted on bottom by high-strength bolt On seat 10, carries transmission chain weight and realize that gear-box torsional freedom limits, the work(such as sealing, lubrication and torque transmission of bearing Energy.The fore bearing 2, rear bearing 5 are respectively assembled on the bearing installation position of 4 front and rear ends of main shaft, and single-row circle can be used Taper roller bearing or other forms bearing, effect are to carry the transmission chain and impeller system weight of wind power generating set, balance The torque in an axial direction that impeller system generates, and rear is delivered torque to by the rotation of main shaft 4.The main shaft 4 Using forging or cast form production, for transmitting impeller torque, it is designed to hollow structure, signal wire, power supply for needs Line provides passing channel, realizes that the power supply and communication signal between the 8 rear portion slip ring of pitch-controlled system and generator of hub interior pass Defeated, internal structure includes that the structure designs such as end face, sealing, locking, lubrication channel, the master are fixed in the installation of forward and backward bearing Projecting shaft bearing 3 is detachably connected by high-strength bolt and wheel hub 1 outside the front end of transmission shaft 4, and its rear end passes through high-strength Degree bolt and the forward flange end face of flange terminal pad 6 are detachably connected, and elasticity or flexible body can be arranged herein to solve to lead Coaxiality deviation problems of too before transmission shaft 4 and gear-box 7, the rear flange end face of the flange terminal pad 6 pass through high-strength The shell of degree bolt and gear-box 7 is detachably connected, and the flange terminal pad 6 is designed to hollow structure, for the letter of needs Number line, power cord provide cable tray, and provide required space for the front lubricating pipe for being arranged in gear-box 7.The tooth Roller box 7 is underneath drive than intermediate gear case, and the shell of shell and generator 8 (specially magneto alternator) passes through high-strength Degree bolt is detachably connected, and installs upper coupling 9, the torque for passing over gear-box 7 in 8 rear side of generator Generator 8 is passed to, when the maximum torsion that the torque transmitted between the output end and the input terminal of generator 8 of gear-box 7 is more than When square value, then shaft coupling 9 occurs to skid existing, and the torque value to be transmitted between gear-box 7 and generator 8 plays certain Restriction effect avoids excessive torque from being passed to gear-box 7 or generator 8, prevents the damage of gear-box 7 or generator 8, from And ensure the reliability and service life of transmission chain, in addition, shaft coupling 9 used by the present embodiment has simple in structure, volume Smaller, the characteristics such as electric insulation are easy for installation, will not significantly increase the weight of transmission chain and occupied space.The pedestal 10, using casting or rear steel plate welding form processing, which is provided with transmission chain installation fixed hole position, host lifting point, and bottom is reserved Driving, off-course brake, yaw bearing mounting hole position are yawed, cable trunking crane span structure is internally provided with.

The examples of implementation of the above are only the preferred embodiment of the utility model, not limit the utility model with this Practical range, therefore change made by all shapes according to the utility model, principle, it should all cover in the scope of protection of the utility model It is interior.

Claims (5)

1. a kind of driving chain of wind generating set structure, it is characterised in that：Include fore bearing, rear bearing, main shaft, bearing Seat, flange terminal pad, gear-box, generator, shaft coupling and the pedestal for being used to support bearing block；The fore bearing, rear bearing, Main shaft, flange terminal pad are placed in bearing block, and the front end face both sides of the bearing block are provided with impeller locking device, The shell of rear portion and gear-box is detachably connected by bolt, and the bottom of the bearing block is removably installed by bolt On pedestal；The fore bearing, rear bearing are respectively assembled on the bearing installation position of main shaft front and rear ends, balance impeller The torque in an axial direction that system generates, and rear is delivered torque to by the rotation of main shaft；The main shaft is for passing The impeller torque for passing wind power generating set, is designed to hollow structure, and projecting shaft bearing passes through outside the front end of the main shaft Bolt is detachably connected with wheel hub, and its rear end is detachably connected by the forward flange end face of bolt and flange terminal pad It connects, the rear flange end face of the flange terminal pad is detachably connected by the shell of bolt and gear-box, and the flange connects It connects disk and is designed to hollow structure；The shell of the gear-box and the shell of generator are detachably connected by bolt, and Upper coupling is installed on rear side of generator.

2. a kind of driving chain of wind generating set structure according to claim 1, it is characterised in that：In the main shaft Rear end and the link position of flange terminal pad flexible or flexible body is set herein.

3. a kind of driving chain of wind generating set structure according to claim 1, it is characterised in that：The bearing block is one Body formula casting structure.

4. a kind of driving chain of wind generating set structure according to claim 1, it is characterised in that：The generator is forever Magnetic-synchro generator.

5. a kind of driving chain of wind generating set structure according to claim 1, it is characterised in that：It is arranged on the pedestal There are transmission chain installation fixed hole position, host lifting point, bottom to be reserved with yaw driving, off-course brake, yaw bearing mounting hole Position, is internally provided with cable trunking crane span structure.