JP2017044150A5

JP2017044150A5 - Wind power generation equipment and second braking device

Info

Publication number: JP2017044150A5
Application number: JP2015167285A
Authority: JP
Filing date: 2015-08-26
Publication date: 2017-12-07
Anticipated expiration: 2035-08-26

Claims

A strut, a nacelle that swivels with respect to the strut, a swivel gear provided on the strut, a first braking device that brakes swiveling of the nacelle without the swivel gear, and a swivel that meshes with the swivel gear A wind power generation facility comprising: n (n is an integer of 2 or more) second braking devices that have a pinion and brake the turning of the nacelle via the turning gear by braking the rotation of the turning pinion Because
The n second braking devices include a torque limiter that slides when a torque of a predetermined value or more is applied,
An assumed maximum value of external force for turning the nacelle is A,
The braking force of the first braking device is B,
The torque starting torque of the torque limiter corresponding to the predetermined value is X,
When the post-operation torque transmitted after the torque limiter is operated is Y,
(AB)-(n-1) Y <X
A wind power generation facility characterized by the fact that

In claim 1,
The second braking device is a yaw unit that includes a motor, a speed reduction mechanism, and a braking mechanism, and is provided with a turning pinion on an output shaft of the speed reduction mechanism to drive the nacelle to turn and to brake Wind power generation facility characterized by that.

In claim 2,
The wind power generation facility characterized in that the accommodation space of the speed reduction mechanism and the accommodation space of the torque limiter are partitioned, and no lubricant is sealed in the accommodation space of the torque limiter.

In any one of Claims 1-3,
The wind power generation facility, wherein the torque limiter has an after-operation torque Y of [100-5 (n-1)]% or more of the operation start torque X.

In any one of Claims 1-4,
The second braking device has a first shaft and a second shaft connected to the first shaft via the torque limiter,
The torque limiter includes: a first member that rotates integrally with the first shaft; a second member that rotates integrally with the second shaft; a pressing member that presses the first member and the second member; An adjustment mechanism for adjusting a pressing force by the member.

A strut, a nacelle that swivels with respect to the strut, a swivel gear provided on the strut, a first braking device that brakes swiveling of the nacelle without the swivel gear, and a swivel that meshes with the swivel gear A wind power generation facility comprising: n (n is an integer of 2 or more) second braking devices that have a pinion and brake the turning of the nacelle via the turning gear by braking the rotation of the turning pinion Because
The n second braking devices include a torque limiter that slides when a torque of a predetermined value or more is applied,
An assumed maximum value of external force for turning the nacelle is A,
The braking force of the first braking device is B,
The operation start torque of each torque limiter corresponding to the predetermined value is set to X1, X2,.
Y1, Y2,..., Yn, post-operation torque to be transmitted after each torque limiter is activated.
The minimum operation start torque among the operation start torques X1, X2,..., Xn is Xmin,
When the maximum post-operation torque among the post-operation torques Y1, Y2,..., Yn is Ymax,
(A−B) − [(Y1 + Y2 +... + Yn) −Ymax] <Xmin
A wind power generation facility characterized by the fact that

  A wind power generation facility comprising: a strut; a nacelle that swivels with respect to the strut; a swiveling gear that is provided on the strut; A second braking device used,
  Having a turning pinion meshing with the turning gear, and braking the turning of the nacelle via the turning gear by braking the rotation of the turning pinion;
  It has a torque limiter that starts to slide when a torque greater than a predetermined value is applied,
  When n (n is an integer of 2 or more) second braking devices are mounted on the wind power generation facility,
  An assumed maximum value of external force for turning the nacelle is A,
  The braking force of the first braking device is B,
  The torque starting torque of the torque limiter corresponding to the predetermined value is X,
  When the post-operation torque transmitted after the torque limiter is operated is Y,
    (AB)-(n-1) Y <X
  Is established
  The 2nd braking device characterized by the above-mentioned.

  A wind power generation facility comprising: a strut; a nacelle that swivels with respect to the strut; a swiveling gear that is provided on the strut; A second braking device used,
  Having a turning pinion meshing with the turning gear, and braking the turning of the nacelle via the turning gear by braking the rotation of the turning pinion;
  It has a torque limiter that starts to slide when a torque greater than a predetermined value is applied,
  When n (n is an integer of 2 or more) second braking devices are mounted on the wind power generation facility,
  An assumed maximum value of external force for turning the nacelle is A,
  The braking force of the first braking device is B,
  The operation start torque of each torque limiter corresponding to the predetermined value is set to X1, X2,.
  Y1, Y2,..., Yn, post-operation torque to be transmitted after each torque limiter is activated.
  The minimum operation start torque among the operation start torques X1, X2,..., Xn is Xmin,
  When the maximum post-operation torque among the post-operation torques Y1, Y2,..., Yn is Ymax,
    (A−B) − [(Y1 + Y2 +... + Yn) −Ymax] <Xmin
  Is established
  The 2nd braking device characterized by the above-mentioned.