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CN-111994787-B - Blade hoisting tool

CN111994787BCN 111994787 BCN111994787 BCN 111994787BCN-111994787-B

Abstract

The utility model provides a blade hoist and mount frock, blade hoist and mount frock includes pitch rotary mechanism and blade anchor clamps, pitch rotary mechanism includes braced frame, pitch rotation axis and rotation axis drive assembly, pitch rotation axis rotationally sets up on braced frame, and pitch rotation axis's first end is connected with the blade anchor clamps, pitch rotation axis's second end is connected with rotation axis drive assembly, rotation axis drive assembly includes worm wheel and the rotatory worm of drive worm wheel, worm wheel and pitch rotation axis coaxial setting and be fixed in pitch rotation axis's second end, in order to drive the worm wheel rotatory through the worm, and then drive blade anchor clamps rotation, thereby adjust the pitch angle of blade, therefore blade hoist and mount frock can centre gripping blade together rotate, just need not additionally to use jigger mechanism in the blade installation.

Inventors

  • SHEN XINGXING
  • ZHANG ZHU
  • CHENG WEI
  • HUANG KEWEI
  • HUANG JIANWEI
  • DENG YAN

Assignees

  • 江苏金风科技有限公司
  • 江苏金风科技有限公司
  • 成都世唯科技有限公司
  • 成都世唯科技有限公司

Dates

Publication Date
20260421
Application Date
20200826
Priority Date
20200826

Claims (13)

  1. 1. The blade lifting tool is characterized in that the blade lifting tool comprises a pitching rotating mechanism (600) and a blade clamp (100), the pitching rotating mechanism (600) comprises a supporting frame (610), a pitching rotating shaft (620) and a rotating shaft driving assembly, the pitching rotating shaft (620) is rotatably arranged on the supporting frame (610), a first end of the pitching rotating shaft (620) is connected with the blade clamp (100), a second end of the pitching rotating shaft (620) is connected with the rotating shaft driving assembly, the rotating shaft driving assembly comprises a worm wheel (6301) and a worm (6302) for driving the worm wheel (6301) to rotate, the worm wheel (6301) and the pitching rotating shaft (620) are coaxially arranged and are fixed at the second end of the pitching rotating shaft (620) so as to drive the worm wheel (6301) to rotate through the worm (6302) and further drive the blade clamp (100) to rotate, thereby adjusting the pitching angle of the blade (1), The blade clamp (100) comprises a blade clamping unit, an angle adjusting unit (117) and a second locking assembly (118), the blade clamping unit comprises an upper clamping assembly (140), the upper clamping assembly (140) is used for clamping above the blade (1), the upper clamping assembly (140) comprises a pressing arm (111) and an upper standing arm (112), the upper part of the upper standing arm (112) is rotatably connected with the pressing arm (111), The angle adjusting unit (117) comprises a second telescopic oil cylinder, a first end of the second telescopic oil cylinder is hinged with the end part of the pressing arm (111) and can stretch out and draw back, a second end of the second telescopic oil cylinder is hinged with the lower part of the upper standing arm (112), and the pressing arm (111) is driven to rotate relative to the upper standing arm (112) through the stretch out and draw back of the second telescopic oil cylinder; the second locking assembly (118) being for locking the hold-down arm (111) relative to the upper riser arm (112), the second locking assembly (118) comprising a stop for limiting retraction of the first end of the second telescopic ram, The stop portion is a locking wedge block (1181), the locking wedge block (1181) has a locking position and an unlocking position, the locking wedge block (1181) has a slope (1181 a), in the locking position, the slope of the locking wedge block (1181) is abutted against the lower part of the first end of the second telescopic cylinder along the retracting direction of the first end of the second telescopic cylinder so as to limit the first end of the second telescopic cylinder to retract, in the unlocking position, the locking wedge block (1181) is separated from the first end of the second telescopic cylinder, or The stopper includes: A baffle plate (1185) mounted on the upper standing arm (112) and arranged on the telescopic path of the first end of the second telescopic cylinder, and Eccentric wheel (1186) is installed on compressing tightly arm (111), eccentric wheel (1186) is rotatably installed on compressing tightly the tip of the first end of arm (111) and can rotate to locking position and unblock position for compressing tightly, in locking position, eccentric wheel (1186) supports and leans on baffle (1185) to restrict the flexible of the first end of second flexible hydro-cylinder, in the unblock position, eccentric wheel (1186) with baffle (1185) breaks away from, thereby the first end of second flexible hydro-cylinder can stretch out and draw back.
  2. 2. The blade hoisting tool as claimed in claim 1, characterized in that the number of the worms (6302) is two, symmetrically arranged on both sides of the worm wheel (6301).
  3. 3. The blade lifting tool as claimed in claim 1, further comprising a lifting frame (200), wherein a pitch rotation shaft (650) is provided on the support frame (610), the pitch rotation shaft (650) being rotatably mounted to a lower end of the lifting frame (200), and a rotation axis of the pitch rotation shaft (650) is arranged perpendicular to a rotation axis of the pitch rotation shaft (620) and parallel to a length direction of the blade jig (100).
  4. 4. A blade lifting tool as claimed in claim 3, further comprising a pitch drive mechanism (640), a first end of the pitch drive mechanism (640) being hinged to the cradle (200), a second end of the pitch drive mechanism (640) being hinged to the support frame (610).
  5. 5. The blade lifting tool as claimed in claim 4, wherein the hanger (200) comprises two vertical beams (230) extending downward, the two vertical beams (230) are disposed at intervals, the supporting frame (610) is disposed between the two vertical beams (230), and the pitch rotation shaft (650) extends from both sides of the supporting frame (610) and is rotatably connected to the two vertical beams (230).
  6. 6. The blade lifting tool as claimed in claim 5, wherein the pitch rotation shaft (650) is a two-section rotation shaft section coaxially arranged on both sides of the support frame (610).
  7. 7. The blade hoisting tool as claimed in claim 5, wherein the pitch drive mechanism (640) is a telescopic cylinder, the pitch drive mechanism (640) is two, the support frame (610) comprises a support base (613) and two support plates (611), the two support plates (611) are arranged on the side surfaces of the support base (613) and are positioned on two sides of the rotating shaft drive assembly, a piston rod (642) of the telescopic cylinder is connected to the support plates (611), and a cylinder body (641) of the telescopic cylinder is connected to the hanger (200).
  8. 8. Blade lifting tool according to claim 7, wherein the first end of the support plate (611) is provided with a pitch drive pivot shaft (612), the free end of the piston rod (642) is pivoted to the pitch drive pivot shaft (612), and the free end of the cylinder (641) is pivoted to the blade clamp (100).
  9. 9. The blade lifting tool according to any one of claims 1-8, wherein the blade clamp (100) comprises a main beam (120), the second end of the pitch rotation shaft (620) is provided with a spline, and a spline groove matching the spline is provided in the middle of the main beam (120).
  10. 10. The blade lifting tool as claimed in claim 9, wherein the blade clamping units (110, 130) are two and are respectively disposed at two ends of the main beam (120), and the pitching rotation mechanism (600) is connected to the main beam (120) and can drive the main beam (120) to rotate around the pitching rotation axis (620).
  11. 11. The blade lifting tool as claimed in claim 10, wherein the blade clamping units (110, 130) further comprise a lower clamping assembly (150) and a clamping opening adjusting unit (115), the clamping opening adjusting unit (115) comprises a first telescopic cylinder, and two ends of the clamping opening adjusting unit (115) are respectively connected between the upper clamping assembly (140) and the lower clamping assembly (150) and used for adjusting the sizes of clamping openings formed by the upper clamping assembly (140) and the lower clamping assembly (150).
  12. 12. The blade lifting tool as claimed in claim 11, wherein the upper clamping assembly (140) comprises a first locking assembly (116), the lower clamping assembly (150) comprises a support arm (113) and a lower standing arm (114) extending upwards from one end of the support arm (113), the lower standing arm (114) being connected with the upper standing arm (112) such that the upper clamping assembly (140) and the lower clamping assembly (150) form a space for clamping a blade, the first locking assembly (116) being used for locking the upper standing arm (112) relative to the lower standing arm (114).
  13. 13. Blade lifting tool according to claim 12, characterized in that the upper part of the upper standing arm (112) is provided with a pivot shaft (1121), the hold-down arm (111) is connected to the upper standing arm (112) by means of the pivot shaft (1121), The angle adjusting unit (117) is used for driving the pressing arm (111) to rotate relative to the upper standing arm (112) so as to adjust the inclination angle of the pressing arm (111) relative to the upper standing arm (112), The second telescopic cylinder drives the pressing arm (111) to pivot around the pivot shaft (1121).

Description

Blade hoisting tool Technical Field The disclosure belongs to the technical field of wind power generation, and particularly relates to a blade hoisting tool. Background With the continuous increase of the single-machine capacity of the wind generating set, the blade size of the wind generating set is gradually increased, for example, the length of the blade of the offshore wind generating set is over 90 meters, the weight of the blade is over 35 tons, and the aerial operation of the blade on the hub is more and more difficult due to the problem of the weight of the blade. The traditional blade installation process needs to rotate the hub by means of the jigger structure, so that the variable pitch bearing of the hub can correspond to the position of the blade flange, and along with the increase of the blade, the load required to be born by the traditional jigger structure is also larger and larger, so that the end cover structure (connected with the jigger) of the generator is deformed in the jigger process, and the normal operation of the unit is influenced. Because blade length overlength, three leaf installation is because the restriction of installation ship, stands up and has very big risk, for example in the installation of above-mentioned blade, and the blade hoist frock of use can take the blade to carry out the rotation of low-angle, for example rotatory 30, consequently need the loop wheel machine to take blade hoist frock jigger to carry out the rotation of wide-angle, but this kind of mode has very big potential safety hazard, for example the loop wheel machine takes blade hoist frock jigger in-process, the influence of lifting hook acceleration in the process of lowering down, probably leads to the lifting hook to collide with the blade, perhaps because the loop wheel machine maloperation produces extra pulling force and makes blade hoist frock produce extra pulling force to the blade and make blade slip out from the centre gripping mouth. Under the condition that the first blade is installed and the second blade is required to be clamped by the blade hoisting tool, the positions of the blade clamping block and the blade tip clamping block of the clamping opening are required to be interchanged generally, and the installation process is complex in operation and time-consuming and labor-consuming. Disclosure of Invention The main invention aim at of this disclosure provides a blade hoist and mount frock, and this blade hoist and mount frock can the centre gripping blade together rotate, and can realize the large-angle rotation of pitch direction, just need not to additionally use jigger mechanism in the blade installation. Aiming at the aim of the invention, the present disclosure provides the following technical scheme: According to one aspect of the present disclosure, there is provided a blade lifting tool, the blade lifting tool includes a pitch rotation mechanism and a blade clamp, the pitch rotation mechanism includes a support frame, a pitch rotation shaft and a rotation shaft driving assembly, the pitch rotation shaft is rotatably disposed on the support frame, and a first end of the pitch rotation shaft is connected with the blade clamp, a second end of the pitch rotation shaft is connected with the rotation shaft driving assembly, the rotation shaft driving assembly includes a worm wheel and a worm for driving the worm wheel to rotate, the worm wheel and the pitch rotation shaft are coaxially disposed and fixed at the second end of the pitch rotation shaft, so as to drive the worm wheel to rotate through the worm, and further drive the blade clamp to rotate, thereby adjusting a pitch angle of the blade. Preferably, the two worms are symmetrically arranged on two sides of the worm wheel. According to another exemplary embodiment of the present disclosure, the blade lifting tool further includes a hanger, a pitch rotation shaft is provided on the support frame, and is rotatably mounted to a lower end of the hanger, and a rotation axis of the pitch rotation shaft is arranged perpendicular to a rotation axis of the pitch rotation shaft and is parallel to a length direction of the blade clamp. Further, the blade hoisting tool further comprises a pitch driving mechanism, a first end of the pitch driving mechanism is hinged to the hanging frame, and a second end of the pitch driving mechanism is hinged to the supporting frame. Preferably, the hanger comprises two vertical beams extending downwards, the two vertical beams are arranged at intervals, the supporting frame is arranged between the two vertical beams, and the pitch rotating shafts extend from two sides of the supporting frame and are rotatably connected to the two vertical beams. According to another exemplary embodiment of the present disclosure, the pitch rotation shaft is a two-section rotation shaft section coaxially disposed at both sides of the support frame. Preferably, the pitch driving mechanism is a telescopic cylinder, t