Drawing force test device and test method for blade root pre-buried bolt sleeve of wind power blade

A technology of wind turbine blades and pre-embedded bolts, which is applied to measuring devices, force/torque/power measuring instruments, instruments, etc., can solve the problems of not being able to test the whole blade, not being able to use on-site testing, and being inflexible in use, and achieve light weight , simple structure and low number of parts

Inactive Publication Date: 2018-03-06
SINOMATECH WIND POWER BLADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing detection devices for measuring the pull-out force of the pre-embedded bolt sleeves of wind turbine blade roots are generally complex in structure, inconvenient to move, and inflexible to use. They can only detect the pull-out force of the bolt sleeves on small blade root test pieces. Cannot be tested on the whole blade, and cannot be used for field testing, only for testing in the laboratory

Method used

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  • Drawing force test device and test method for blade root pre-buried bolt sleeve of wind power blade
  • Drawing force test device and test method for blade root pre-buried bolt sleeve of wind power blade
  • Drawing force test device and test method for blade root pre-buried bolt sleeve of wind power blade

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Experimental program
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Effect test

Embodiment approach 1

[0030] see figure 1 and figure 2 , the embodiment discloses a wind power blade root embedded bolt sleeve pullout force testing device, which is used for testing the embedded bolt sleeve 5 on the blade root test piece 4 of the wind power blade. The device for testing the pullout force of the pre-embedded bolt sleeve of the blade root of a wind power blade includes a backing plate 1, a tie rod 2, a hollow jack 3 and a pullout force measurement device.

[0031] The backing plate 1 can be a steel plate, and the backing plate 1 can be attached to an end surface of the blade root test piece 4 provided with the bolt sleeve 5 . Through holes 11 for exposing the bolt sleeves 5 are provided on the backing plate 1 . When the backing plate 1 is attached to the end surface of the blade root test piece 4 , the bolt sleeve 5 will not be blocked by the backing plate 1 due to the existence of the through hole 11 , so the bolt sleeve 5 can be tested. The backing plate 1 can also be provided...

Embodiment approach 2

[0042] This embodiment discloses a method for testing the pull-out force of a bolt sleeve embedded in a blade root of a wind power blade, which is used to test the pull-out force of a bolt sleeve embedded in a blade root specimen of a wind power blade, including the following steps:

[0043] A backing plate is provided, and the backing plate is attached to an end surface of the blade root test piece provided with a bolt sleeve, and the backing plate is provided with a through hole for exposing the bolt sleeve;

[0044] A pull rod is provided, and one end of the pull rod passes through the through hole and is threadedly connected with the bolt sleeve;

[0045] Sleeve a hollow jack or a hollow actuator on the pull rod, and make the hollow jack or hollow actuator abut against the backing plate and provide a pulling force to the pull rod;

[0046] The pullout force is measured by a pullout force measuring device.

[0047] The method for testing the pull-out force of the pre-embed...

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Abstract

The invention provides a drawing force test device and a test method for the blade root pre-buried bolt sleeve of a wind power blade. The test device comprises a backing board, a pull rod, a hollow jack or a hollow actuator and a drawing force measurement device. The backing board can be attached to the end surface of a blade root test piece, wherein the end surface is provided with a bolt sleeve.The backing board is provided with a through hole used for exposing the bolt sleeve. One end of the pull rod penetrates through the through hole and is in threaded connection with the bolt sleeve. The hollow jack or the hollow actuator is arranged on the pull rod in a sleeved mode. The hollow jack or the hollow actuator abuts against the backing board and drives the pull rod to apply a drawing force to the bolt sleeve. The drawing force measurement device is used for measuring the drawing force. The test device is simple in structure, light in weight and small in size. The device can be applied to indoor and outdoor environments and can be used for testing different kinds of blade root test pieces. Therefore, the device is large in application range.

Description

technical field [0001] The invention relates to a device for testing the pulling force of a pre-embedded bolt sleeve of a blade root of a wind power blade, and also relates to a method for testing the pulling force of a pre-embedded bolt sleeve of a blade root of a wind power blade. Background technique [0002] Wind power blades are connected to the hub of the generator main engine through blade root T-bolts or blade root embedded bolt sleeves. The strength of the blade root connector is an important mechanical index of large wind power blades. Existing detection devices for measuring the pull-out force of the pre-embedded bolt sleeves of wind turbine blade roots are generally complex in structure, inconvenient to move, and inflexible to use. They can only detect the pull-out force of the bolt sleeves on small blade root test pieces. Whole blades cannot be tested and cannot be used for field testing, only in the laboratory. [0003] The above information disclosed in this ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 王战坚王鹏高国强李权舟牟书香袁志超王兴伟
Owner SINOMATECH WIND POWER BLADE
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