CN112010164B

CN112010164B - Blade clamp and blade hoisting tool

Info

Publication number: CN112010164B
Application number: CN202010870467.7A
Authority: CN
Inventors: 方晶; 沈星星; 程伟; 黄可唯; 黄建伟; 邓艳
Original assignee: CHENGDU SHIWEI TECHNOLOGY CO LTD; Guangdong Jinfeng Technology Co ltd
Current assignee: CHENGDU SHIWEI TECHNOLOGY CO LTD; Guangdong Jinfeng Technology Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2023-07-21
Anticipated expiration: 2040-08-26
Also published as: CN112010164A

Abstract

The invention provides a blade clamp and a blade hoisting tool, wherein the blade clamp comprises a blade clamping mechanism, and the blade clamping mechanism comprises: the upper clamping assembly comprises a pressing arm and an upper vertical arm extending downwards from one end of the pressing arm, and the pressing arm can pivot relative to the upper vertical arm; the lower clamping assembly comprises a bearing arm and a lower vertical arm extending upwards from one end of the bearing arm, and the lower vertical arm is connected with the upper vertical arm; the clamping opening adjusting unit is connected between the upper vertical arm and the lower vertical arm and used for driving the upper clamping assembly to move relative to the lower clamping assembly; a first locking assembly for locking the upper riser arm relative to the lower riser arm; the angle adjusting unit is used for driving the pressing arm to rotate relative to the upper vertical arm; and a second locking assembly for locking the hold-down arm relative to the upper riser arm.

Description

Blade clamp and blade hoisting tool

Technical Field

The invention belongs to the technical field of wind power generation, and particularly relates to a blade clamp and a blade hoisting tool with the same.

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 the length of the blade is very long, three-leaf installation has great risk due to the limitation of an installation ship, for example, in the installation process of the blade, a single-blade lifting appliance used for clamping one blade can rotate at a small angle with the blade, for example, rotate 30 degrees, so that a crane is required to rotate at a large angle with a single-blade lifting appliance jigger, but the mode has great potential safety hazards, for example, in the process of lifting the crane with the single-blade lifting appliance jigger, the lifting hook can collide with the blade due to the influence of acceleration of the lifting hook in the process of lowering, or the lifting hook can generate additional tension to the blade due to misoperation of the crane so that the single-blade lifting appliance can generate additional tension to the blade to enable the blade to slide out from the clamping opening.

Disclosure of Invention

One of the main objects of the present invention is to provide a blade clamp which can adjust the opening and closing degree of a blade clamping opening and maintain the blade clamping state.

In view of the above object, the present invention provides a blade clamp including a blade clamping mechanism including: the upper clamping assembly comprises a pressing arm and an upper standing arm extending downwards from one end of the pressing arm, wherein the pressing arm can pivot relative to the upper standing arm; the lower clamping assembly comprises a bearing arm and a lower vertical arm extending upwards from one end of the bearing arm, and the lower vertical arm is connected with the upper vertical arm so as to form a space for clamping the blade through the upper clamping assembly and the lower clamping assembly; the clamping opening adjusting unit is connected between the upper vertical arm and the lower vertical arm and used for driving the upper clamping assembly to move relative to the lower clamping assembly so as to adjust the distance between the pressing arm and the bearing arm; a first locking assembly for locking the upper riser arm relative to the lower riser arm; the angle adjusting unit is used for driving the pressing arm to rotate relative to the upper vertical arm so as to adjust the inclination angle of the pressing arm relative to the upper vertical arm; and a second locking assembly for locking the hold-down arm relative to the upper riser arm.

According to an aspect of the invention, the first locking assembly may comprise: a first locking piece mounted on one of the lower standing arm and the upper standing arm; a second locking member mounted on the other of the lower and upper arms and opposite the first locking member, having a locking position in which the second locking member engages the first locking member to lock the relative positions of the upper and lower clamp assemblies, and an unlocking position in which the second locking member disengages the first locking member so that the upper arm can move relative to the lower arm; and a first driving member connected with the second locking piece for driving the second locking piece to move to at least one of the locking position and the unlocking position.

According to an aspect of the present invention, the first locking member may be a long rack, mounted on the lower standing arm and extending in a direction in which the upper standing arm moves relative to the lower standing arm; the second locking piece is a short rack, is arranged on the upper vertical arm and is opposite to the long rack, and can move along the direction perpendicular to the moving direction of the upper vertical arm relative to the lower vertical arm under the driving of the first driving component, so that the short rack and the long rack are meshed with each other at the locking position, the first driving component is a telescopic oil cylinder, and the short rack is arranged at the first end of the telescopic oil cylinder.

According to an aspect of the present invention, the jaw adjustment unit may include a first telescopic driving mechanism, which is a first telescopic cylinder, one end of which is connected to the lower vertical arm and the other end of which is connected to the upper vertical arm.

According to an aspect of the present invention, the upper portion of the upper standing arm may be provided with a pivot shaft, the pressing arm is connected to the upper standing arm through the pivot shaft, the angle adjusting unit includes a second telescopic driving mechanism, the second telescopic driving mechanism is a second telescopic cylinder, a first end of the second telescopic cylinder is hinged to the lower portion of the upper standing arm and can be telescopic, and a second end of the second telescopic cylinder is hinged to an end portion of the pressing arm, so that the pressing arm is driven to pivot around the pivot shaft.

According to an aspect of the present invention, the second locking assembly may include: and the stop part is used for limiting the retraction of the first end of the second telescopic oil cylinder.

According to an aspect of the present invention, the stopper may be a locking wedge having a locking position in which the locking wedge abuts against the first end of the second telescopic cylinder to limit retraction, and an unlocking position in which the locking wedge is disengaged from the first end of the second telescopic cylinder; the second locking assembly further includes a second drive member mounted on the hold-down arm for driving the locking wedge into at least one of the locked and unlocked positions.

According to an aspect of the present invention, the locking wedge may have a slope, and in the locked position, the slope of the locking wedge abuts against a lower portion of the first end of the second telescopic cylinder in a direction in which the first end of the second telescopic cylinder is retracted, to restrict the first end of the second telescopic cylinder from being retracted.

According to an aspect of the present invention, the second locking assembly may further include a support frame mounted on an upper portion of the upper standing arm, and the locking wedge is mounted on the support frame and movable in a direction approaching or separating from the first end of the second telescopic cylinder.

According to an aspect of the present invention, the support frame may be formed with a groove extending along a telescopic stroke of the first end of the second telescopic cylinder to guide a movement trace of the first end of the second telescopic cylinder, and a bottom of the groove supports the first end after the first end of the second telescopic cylinder is retracted.

According to an aspect of the present invention, the stopper may include: a baffle plate mounted on the upper standing arm and arranged on a telescopic path of the first end of the second telescopic cylinder; and the eccentric wheel is arranged on the pressing arm and can rotate to a locking position and an unlocking position relative to the pressing arm, in the locking position, the eccentric wheel is abutted against the baffle plate so as to limit the expansion of the first end of the second telescopic oil cylinder, and in the unlocking position, the eccentric wheel is separated from the baffle plate so that the first end of the second telescopic oil cylinder can expand and contract.

According to an aspect of the invention, the eccentric may include a long diameter end and a short diameter end, the long diameter end being rotated to and against the flapper in the locked position and the short diameter end being rotated to and separated from the flapper in the unlocked position.

According to an aspect of the invention, the second locking assembly may further comprise a third driving member mounted on the hold-down arm for driving the eccentric to move to at least one of the locked position and the unlocked position.

According to an aspect of the invention, the upper and lower clamping assemblies may each include a conformal compression member rotatable by a first deflection shaft extending along a length of the blade and a second deflection shaft extending along a chord length of the blade.

According to an aspect of the invention, the form-following hold-down member may comprise: the deflection support is rotatably connected with the pressing arm or the supporting arm through a first deflection shaft; and the clamping block is rotatably connected with the other side of the deflection support through a second deflection shaft.

According to an aspect of the present invention, the form-following pressing member may further include a deflection frame and a displacement screw, the deflection frame being connected to the displacement screw and being movable back and forth along a chord length direction of the blade under the urging of the displacement screw, the first deflection shaft being mounted on the deflection frame.

According to an aspect of the present invention, a blade clamp may include: a main beam; and more than two blade clamping mechanisms arranged on the main beam for clamping the blades at different positions in the length direction of the blades.

According to an aspect of the invention, the blade clamping mechanism is rotatably arranged on the main beam to adjust the pitch angle of the blade.

According to another aspect of the present invention, there is also provided a blade lifting tool, which may comprise a blade clamp as described above; the pitching rotating mechanism is connected with the main beam of the blade clamp to drive the blade clamp to integrally rotate.

The blade clamp provided by the invention can adjust the opening and closing degree of the blade clamping opening, maintain the blade clamping state, prevent the blade clamp from loosening from the blade in the clamping process, and ensure the clamping reliability.

Drawings

The foregoing and/or other objects and advantages of the invention will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 shows a schematic view of a blade lifting tool according to an exemplary embodiment of the invention.

Fig. 2 shows a perspective view of the blade holder of fig. 1.

Fig. 3 shows an exploded view of the blade gripping mechanism of fig. 2.

Fig. 4 shows a perspective view of the internal structure of the blade holding mechanism in fig. 2.

Fig. 5 is an exploded view of the blade gripping mechanism of fig. 4.

FIG. 6 is an enlarged view showing a first locking assembly of the blade gripping mechanism of FIG. 2.

Fig. 7, 8 and 9 are schematic views showing a process of locking the hold-down arm with respect to the upper standing arm by the second locking assembly.

Fig. 10 shows a schematic view of a second locking assembly according to another embodiment.

Fig. 11 shows a schematic view of a part of the blade clamping mechanism of fig. 2 at the connection with the main beam.

Fig. 12 is an enlarged schematic view of the portion I in fig. 11.

Fig. 13 shows a schematic view of the blade clamp of fig. 2 before it is used for pitching of the blade.

Fig. 14 shows a schematic view of the blade clamp of fig. 2 after use for pitching of the blade.

Fig. 15 shows an exploded view of the pitch rotation mechanism in fig. 1.

Fig. 16 is a structural view of the pitch rotation mechanism in fig. 1.

FIG. 17 is a cross-sectional view A-A of the pitch rotation mechanism of FIG. 16.

Fig. 18 is a schematic view of a blade hoisted by the blade hoisting tool according to the invention.

Fig. 19 is a schematic view of hoisting three blades using the blade hoisting tool according to the invention.

Reference numerals illustrate:

1: a blade; 100: a blade clamp; 110 and 130: a blade clamping mechanism; 111: a hold-down arm; 112: an upper standing arm; 1121: a pivot shaft; 1122: a mounting plate; 113: a support arm; 114: a lower vertical arm; 115: a nip adjusting unit; 116: a first locking assembly; 1161: a first locking member; 1162: a second locking member; 1163: a first driving member; 117: an angle adjusting unit; 118: a second locking assembly; 1181: a locking wedge; 1181a: an inclined plane; 1182: a second driving member; 1183: a support frame; 1184: a groove; 1185: a baffle; 1186: an eccentric wheel; 1187: a third driving member; 119: a conformal compression member; 1191: a first deflection axis; 1192: a second deflection axis; 1193: a deflection support; 1194: a clamping block; 1194a; a clamping block clamping structure; 1194b; a rubber clamping block; 1195: a deflection frame; 1196: a displacement screw; 120: a main beam; 121: a beam body; 122: a support leg; 140: a pitch mechanism; 141: a pitch drive member; 142: a guide rail; 142a: an auxiliary groove; 143: a track groove; 143a: an auxiliary rail; 144: a pin shaft; 200: a hanging bracket; 210: a boom; 220: the hanging point is connected with the cross beam; 230: lifting lugs; 300: a telescoping member; 400: a pitch rotation mechanism; 410: a support frame; 420: a rotation shaft; 430: a crank; 440: a driving unit; 450: a connecting shaft; 500: and a weight unit.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the embodiments of the present invention should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, according to an embodiment of the present invention, there is provided a blade lifting jig including a blade jig 100, a hanger 200, a telescopic member 300, a pitch rotation mechanism 400, and a weight unit 500. The blade jig 100 is for holding the blade 1 (see fig. 18 and 19) and is rotatably coupled to one side of the hanger 200 through a rotation shaft 420 (see fig. 15), and the weight unit 500 is coupled to the other side of the hanger 200. The hanger 200 is connected with the weight unit 500 through the telescopic member 300, so that the gravity center position of the blade lifting tool can be adjusted. Pitch rotation mechanism 400 is mounted on cradle 200 and is coupled to blade clamp 100 to drive adjustment of the pitch angle of blade clamp 100.

Next, a blade jig 100 of an embodiment of the present invention will be specifically described with reference to fig. 1 to 10. The blade clamp 100 according to the exemplary embodiment of the present invention includes a girder 120 and at least two blade clamping mechanisms 110 and 130 connected to the girder 120 to clamp the blade 1 at different positions in the length direction of the blade 1. As shown in FIG. 1, blade clamp 100 includes two blade clamping mechanisms 110 and 130 attached to opposite ends of a spar 120. The blade clamping mechanisms 110 and 130 may also be referred to as first and second blade clamping mechanisms 110 and 130, respectively, for clamping the tip and root portions of the blade, and thus may also be referred to as tip and root clamping mechanisms 110 and 130, respectively. The first blade clamping mechanism 110 and the second clamping mechanism 130 are identical in structure, except for the range of adjustment of the size of the clamping ports. However, the sizes of the clamping ports of the first blade clamping mechanism 110 and the second clamping mechanism 130 may also be set to be the same. Therefore, in the following description, only the structure of the first blade holding mechanism 110 will be described.

As shown in fig. 1 to 5, the blade clamping mechanism 110 includes an upper clamping assembly, a lower clamping assembly, and a nip adjusting unit 115 connected between the upper clamping assembly and the lower clamping assembly. The nip adjusting unit 115 can adjust the size of the nip formed by the upper and lower nip assemblies so as to be suitable for nipping blades of different sizes. The blade clamping mechanism 110 may further include a first locking assembly 116 for locking the jaw adjustment unit 115 after the jaw adjustment unit 115 adjusts the size of the jaw to a proper size, thereby preventing the upper and lower clamping assemblies from moving relative to each other.

The upper clamping assembly may include a hold down arm 111 and an upper riser arm 112 extending downwardly from one end of the hold down arm 111, the hold down arm 111 being pivotable relative to the upper riser arm 112 such that when loading the blade 1, the hold down arm 111 is lifted up and after loading the blade 1 in place, the hold down arm 111 is rotated downwardly to clamp the blade 1. The blade gripping mechanism 110 according to an embodiment of the present invention may further comprise an angle adjustment unit 117 and a second locking assembly 118. The angle adjustment unit 117 is used to adjust the pivot angle of the hold-down arm 111, and the second locking assembly 118 is used to lock the hold-down arm 111.

The lower clamping assembly may include a bearing arm 113 and a lower standing arm 114 extending upward from one end of the bearing arm 113, the lower standing arm 114 being connected with the upper standing arm 112, thereby forming a space (i.e., a clamping opening) for clamping the blade 1 with the lower clamping assembly by the upper clamping assembly. A nip adjusting unit 115 is connected between the upper and lower standing arms 112 and 114 for driving the upper clamping assembly to move relative to the lower clamping assembly to adjust the distance between the hold-down arm 111 and the support arm 113. The first locking assembly 116 is used to lock the upper riser 112 relative to the lower riser 114. The angle adjustment unit 117 is used to drive the pressing arm 111 to rotate relative to the upper standing arm 112 to adjust the inclination angle of the pressing arm 111 relative to the upper standing arm 112. The second locking assembly 118 is used to lock the hold down arm 111 relative to the upper riser arm 112.

According to the blade clamp 100 of the exemplary embodiment of the present invention, the clamping space (i.e., the clamping port) having the shape of "C" or "" is formed by the upper and lower clamping assemblies, the pressing arm 111 and the holding arm 113 form two clamp legs for clamping the opposite surfaces of the blade 1, and the upper and lower standing arms 112 and 114 constitute a telescopic standing arm connected between the pressing arm 111 and the holding arm 113. The clamping range of the blade 1 is adjusted in a wide range by driving the upper standing arm 112 and the lower standing arm to move relatively by the clamping opening adjusting unit 115, and the pressing arm 111 is driven to rotate relative to the upper standing arm 112 by the angle adjusting unit 117, so as to further adjust the magnitude of the clamping force for clamping the blade 1. Specifically, the pressing arm 111 may be rotated counterclockwise to open to increase the entry space of the blade 1, or may be rotated clockwise to press down to apply a pressing force to the blade 1. In addition, the height positions of the upper and lower vertical arms 112 and 114 can be locked by the first locking assembly 116, and the rotation angle of the pressing arm 111 relative to the upper vertical arm 112 can be locked by the second locking assembly 118, so that the clamping state between the blade clamp 100 and the blade 1 is maintained, the release of the blade clamp after clamping the blade 1 is prevented, and the reliability of clamping is ensured.

In an embodiment, as shown in fig. 2 to 5, the upper and lower standing arms 112 and 114 may be a columnar hollow structure, i.e., a hollow cylindrical shape, and formed in a structure nested with each other, as shown in fig. 3 and 4, may be formed in a rectangular hollow structure. Specifically, the lower portion of the upper standing arm 112 is nested inside the upper portion of the lower standing arm 114 and can relatively slide in the height direction (Y direction shown in fig. 4) by the pushing of the nip adjusting unit 115, thereby adjusting the height/length of the telescopic standing arm composed of the upper standing arm 112 and the lower standing arm 114. For example, when the portion where the upper standing arm 112 and the lower standing arm 114 are nested with each other increases, that is, the height/length of the telescopic standing arm becomes smaller, the distance between the pressing arm 111 and the holding arm 113 becomes smaller, and thus the degree of opening of the grip opening becomes smaller; conversely, when the portion where the upper standing arm 112 and the lower standing arm 114 are nested with each other is reduced, the overall height/length of the telescopic standing arm becomes large, the distance between the pressing arm 111 and the holding arm 113 becomes large, and the degree of opening of the grip opening becomes large. Alternatively, the upper and lower arms 112, 114 may be formed of stainless steel plates to improve strength and prevent corrosion. However, the present invention is not limited thereto, and the connection manner and the specific shape of the upper and lower standing arms 112 and 114 are not limited thereto, as long as the upper and lower standing arms 112 and 114 can be moved up and down in the vertical direction (Y direction) to adjust the distance between the pressing arm 111 and the supporting arm 113. In addition, the upper standing arm 112 and the lower standing arm 114 constitute a telescopic standing arm with an adjustable length, which enables the hold-down arm 111 to be moved closer to or farther from the support arm 113 when clamping the blade 1, thereby clamping the blade 1 in the blade clamping mechanism 110.

As shown in fig. 4 and 5, the jaw adjustment unit 115 may include a first telescopic driving mechanism provided inside the lower standing arm 114. The first telescopic driving mechanism may be a driving mechanism with large thrust and large stroke, so as to adjust the clamping range of the blade 1 in a large range, that is, adjust the opening size of the clamping opening. The first telescopic drive mechanism may be a first telescopic cylinder, for example an automatically controlled hydraulic cylinder. Wherein, one end of the first telescopic cylinder is connected with the lower vertical arm 114, and the other end is connected with the upper vertical arm 112. The telescopic stroke of the first telescopic cylinder can be relatively large, and the upper standing arm 112 is driven to move relative to the lower standing arm 114 through the linear telescopic movement of the first telescopic cylinder, so that the distance between the pressing arm 111 and the supporting arm 113 is adjusted. However, the present invention is not limited thereto, and the jaw adjusting unit 115 may be another driving element capable of driving the upper standing arm 112 and the lower standing arm 114 to move relatively, thereby adjusting the distance between the pressing arm 111 and the holding arm 113, and may be, for example, a cylinder, an electric screw, a bolt and nut, or the like.

The opening and closing degree of the clamp opening can be adjusted by the clamp opening adjusting unit 115 in cooperation with the lifting of the upper standing arm 112 relative to the lower standing arm 114. After the opening and closing degree of the clamping ports is properly adjusted, in order to maintain the adjusted clamping ports to more firmly clamp the blades, a backup first locking assembly 116 is provided on the basis of the lifting function, as shown in fig. 3 to 6, the first locking assembly 116 including a first locking piece 1161, a second locking piece 1162, and a first driving member 1163.

Wherein the first locking piece 1161 is mounted on one of the lower riser arm 114 and the upper riser arm 112. The second locking piece 1162 is mounted on the other of the lower standing arm 114 and the upper standing arm 112, opposite to the first locking piece 1161, and has a locking position and an unlocking position. In the locked position, the second locking member 1162 is engaged with the first locking member 1161 to lock the relative positions of the upper clamp assembly and the lower clamp assembly. In the unlocked position, the second locking member 1162 is disengaged from the first locking member 1161 such that the upper riser arm 112 is movable relative to the lower riser arm 114. The first drive member 1163 may be a telescoping drive member, such as a hydraulic ram, cylinder, or lead screw. In the example shown in the drawings, the first driving member 1163 is an oil cylinder or an air cylinder, a cylinder portion of the first driving member 1163 is installed at a lower portion of the upper riser arm 112, and a piston rod of the first driving member 1163 is connected to the second locking piece 1162 for driving the second locking piece 1162 to move to at least one of the locking position and the unlocking position.

In an embodiment, the first locking member 1161 is a long rack mounted on the lower riser arm 114 and extending in a direction in which the upper riser arm 112 moves relative to the lower riser arm 114 (Y direction shown in fig. 6). The second locking piece 1162 is a short rack, is installed opposite to a long rack, and is movable in a direction (X direction shown in fig. 6) perpendicular to a direction in which the upper riser arm 112 moves relative to the lower riser arm 114 by the driving of the first driving member 1163, so that the short rack and the long rack are engaged with each other in the locking position. A stepless locking between the upper and lower riser arms 112, 114 is achieved by means of engagement of the long and short racks. The length of the long rack may be matched to the telescoping travel of the first drive member 1163 or to the relative distance of movement between the upper and lower clamp assemblies. The length of the short racks is smaller than that of the long racks, and the specific length is not limited as long as it has a strength capable of locking the upper and lower stand arms 112 and 114 to each other.

Wherein the first driving member 1163 may be a telescopic ram mounted on the upper riser 112, and the short rack is disposed at a first end of the telescopic ram (i.e., an extended end of the piston rod). The present invention is not limited thereto and the first driving member 1163 may be other driving elements capable of driving the second locking piece 1162 to move in a direction approaching or moving away from the first locking piece 1161.

Although the first latch 1161 is shown in fig. 6 as being formed on the inner side surface of the lower standing arm 114, the first driving member 1163 is mounted on the upper standing arm 112, and the second latch 1162 is mounted on the telescopic end of the first driving member 1163, the positions of the first latch 1161 and the second latch 1162 may be interchanged as needed.

In the present embodiment, the relative position between the upper and lower vertical arms 112 and 114 is locked by the engagement of the long and short racks with each other, but the present invention is not limited thereto, and the first and second locking pieces 1161 and 1162 may also employ other known locking structures in the art, such as locking holes and locking pins, etc., as long as the locking or releasing of the upper and lower vertical arms 112 and 114 can be achieved by the cooperation of the first and second locking pieces 1161 and 1162 with each other.

In the above, the upper standing arm 112 is moved relative to the lower standing arm 114 by the nip adjusting unit 115, so that the size of the nip is adjusted in a wide range in the vertical direction. In order to further adjust the tightness of the clamping blade, as shown in fig. 3 to 5, the pressing arm 111 may be driven to rotate relative to the upper standing arm 112 by an angle adjusting unit 117 to adjust the opening and closing state of the clamping opening of the blade clamping mechanism 110 and the magnitude of the clamping force applied to the blade.

Specifically, the upper portion of the upper standing arm 112 is provided with a pivot shaft 1121, and the pressing arm 111 is connected to the upper standing arm 112 through the pivot shaft 1121. The angle adjusting unit 117 may include a second telescopic driving mechanism, which may be a second telescopic cylinder, a first end of which is hinged to an end of the pressing arm 111 and can be telescopic, and a second end of which is hinged to a lower portion of the upper standing arm 112 so as to drive the pressing arm 111 to pivot with respect to the upper standing arm 112 about the pivot shaft 1121.

Similar to the first telescopic cylinder, the second telescopic cylinder may be an automatically controlled hydraulic cylinder. The second telescopic oil cylinder can adopt the same structural design as the first telescopic oil cylinder, and also can adopt different structural designs, namely one adopts a large-thrust large-stroke design, and the other adopts a high-precision small-stroke design, so as to meet the control requirements on different precision and strokes. In addition, the angle adjustment unit 117 may be other driving elements than a hydraulic cylinder, which can drive the pressing arm 111 to rotate about the pivot shaft 1121 with respect to the upper standing arm 112, and may be, for example, an air cylinder or an electric screw or a bolt-and-nut, or the like.

The upper end of the upper standing arm 112 may be connected with a mounting plate 1122, the mounting plate 1122 extending laterally with respect to the upper end of the upper standing arm 112, and a pivot shaft 1121 may be mounted at an end of the mounting plate 1122 so as to be spaced apart from the upper end of the angle adjusting unit 117 in the horizontal direction. By spacing the position where the pressing arm 111 is connected to the pivot shaft 1121 from the end of the pressing arm 111, the end of the pressing arm 111 is connected to the upper end of the angle adjusting unit 117, and then the pivot shaft 1121 is used as a rotation support shaft, so that the pressing arm 111 can pivot around the pivot shaft 1121 under the driving of the angle adjusting unit 117, thereby adjusting the inclination angle of the pressing arm 111 and correspondingly adjusting the clamping force on the blade.

After the angle adjustment unit 117 drives the pressing arm 111 to rotate to a desired angle with respect to the upper standing arm 112, the rotational positions of the pressing arm 111 and the upper standing arm 112 may be locked by the second locking assembly 118, thereby maintaining the clamped state between the blade clamp and the blade 1.

Specifically, the second locking assembly 118 may include a stopper for restricting the retraction of the first end of the second telescopic cylinder, thereby preventing the pressing arm 111 from being pivoted upward to open in a state of clamping the blade 1, resulting in the falling-off of the blade 1.

Referring to fig. 3-5, 7-9, in an embodiment, the stop may be a locking wedge 1181. The locking wedge 1181 has a locked position and an unlocked position, the locking wedge 1181 abutting the first end of the second telescopic cylinder in the locked position of the locking wedge 1181 to limit retraction; in the unlocked position of the locking wedge 1181, the locking wedge 1181 is disengaged from the first end of the second telescoping cylinder, thereby releasing the first end of the second telescoping cylinder so that it may be retracted.

To allow the locking wedge 1181 to be switched between its locked and unlocked positions, the second locking assembly 118 may further include a second drive member 1182, the second drive member 1182 may be a telescoping drive member, such as a hydraulic ram, cylinder, or lead screw, to urge the locking wedge 1181 to move between the locked and unlocked positions. In the example shown in the drawings, the second drive member 1182 may be an oil cylinder or a gas cylinder, the cylinder of the second drive member 1182 being mounted on the upper riser 112, the piston rod of the second drive member 1182 being connected to the locking wedge 1181 for driving the locking wedge 1181 into at least one of its locked and unlocked positions.

The second locking assembly 118 may also include a support bracket 1183. A support frame 1183 is installed at an upper portion of the upper standing arm 112, and a locking wedge 1181 is installed on the support frame 1183 and movable in a direction approaching or separating from the first end of the second telescopic cylinder. The support frame 1183 may be formed with a groove 1184, the groove 1184 extending along the telescopic stroke of the first end of the second telescopic cylinder to guide the movement track of the first end of the second telescopic cylinder, and after the first end of the second telescopic cylinder is retracted, the bottom of the groove 1184 supports the first end.

Alternatively, the locking wedge 1181 may have a ramp 1181a, in which the ramp of the locking wedge 1181 abuts a lower portion of the first end of the second telescopic cylinder in the direction in which the first end of the second telescopic cylinder is retracted, to limit retraction of the first end of the second telescopic cylinder. By the inclined surface design, when the locking wedge 1181 is pressed by the reaction force, the inclined surface support with the inclined angle forms a friction angle self-locking state, so that after the blade is clamped in place and the second driving member 1182 pushes the locking wedge 1181 to the locking position, the second driving member 1182 does not need to provide pushing force, the telescopic state of the angle adjusting unit 117 can be locked, the rotation angle between the pressing arm 111 and the upper standing arm 112 is kept, and the safe clamping of the blade is not at risk.

Fig. 7 to 9 show a process in which the angle adjustment unit 117 drives the pressing arm 111 to rotate relative to the upper standing arm 112 and is locked by the locking wedge 1181. As shown in fig. 7, the hold-down arm 111 is in a state of being rotated outwardly with respect to the upper standing arm 112, and at this time, the first end of the second telescopic cylinder is in a retracted state; as shown in fig. 8, the first end of the second telescopic cylinder extends out and moves upward along the groove 1184 of the support frame 1183, thereby driving the pressing arm 111 to rotate downward relative to the upper standing arm 112; as shown in fig. 9, after the hold-down arm 111 is rotated in place with respect to the upper standing arm 112, the formed clamping opening can clamp the blade 1, at this time, the second driving member 1182 pushes the locking wedge 1181 to move leftward to the locking position, i.e., the locking wedge 1181 is embedded between the first end of the second telescopic cylinder and the supporting frame 1183, and the inclined surface of the locking wedge 1181 abuts against the lower portion of the first end of the second telescopic cylinder, thereby restricting the retraction of the first end of the second telescopic cylinder. Meanwhile, if the blade is installed, the second driving member 1182 drives the locking wedge 1181 to move rightward to the unlocking position, at this time, the first end of the second telescopic cylinder can be freely telescopic, so that the clamping opening is loose, the blade can be released, and the safe disassembly of the blade can be completed.

The end of the piston rod of the second telescopic cylinder may be provided with a projection so that the end of the piston rod can interfere with the locking wedge 1181 when the locking wedge 1181 is located between the first end of the first telescopic cylinder and the support frame 1183, thereby preventing the piston rod from retracting.

However, the present invention is not limited thereto, and in another embodiment, as shown in fig. 10, the stopper may include a baffle 1185 and an eccentric 1186. The baffle 1185 is mounted on the upper riser arm 112 and is disposed on the telescopic path of the piston rod of the second telescopic cylinder, for example, on the inner side surface of the upper riser arm 112. The eccentric wheel 1186 is mounted on the end part of the piston rod of the second telescopic cylinder and can rotate to a locking position and an unlocking position, and in the locking position of the eccentric wheel 1186, the eccentric wheel 1186 abuts against the baffle 1185, so that the expansion and the contraction of the piston rod of the second telescopic cylinder are limited; in the unlocked position of the eccentric 1186, the eccentric 1186 is disengaged from the baffle 1185 such that the first end of the second telescoping cylinder is telescoping.

The eccentric wheel 1186 may be a disc shape, which includes a long diameter end and a short diameter end, and a predetermined gap is provided between the baffle 1185 and the piston rod of the second telescopic cylinder, where the predetermined gap is greater than the short diameter of the eccentric wheel 1186 and less than the long diameter of the eccentric wheel 1186. In the locked position, the long diameter end rotates to the baffle 1185 and abuts against the baffle 1185 to prevent the piston rod of the second telescopic oil cylinder from retracting, and in the unlocked position, the short diameter end rotates to the baffle 1185 and is separated from the baffle 1185, and the piston rod can freely extend and retract through the baffle 1185.

Likewise, to allow the eccentric 1186 to be switched between its locked and unlocked positions, the second locking assembly 118 may further include a third drive member 1187, which may be a telescoping drive member, such as a hydraulic ram, cylinder, or lead screw. In the example shown in the drawings, the third drive member 1187 may be a telescopic ram, and a cylinder of the third drive member 1187 may be mounted on the hold-down arm 111, with a piston rod of the third drive member 1187 being hinged to the eccentric 1186 for driving the eccentric 1186 to rotate between the locked and unlocked positions.

The specific structures of the nip adjusting unit 115, the angle adjusting unit 117, the first locking assembly 116, and the second locking assembly 118 for adjusting and locking the opening and closing degree of the nip are described above with reference to the drawings.

Next, the following-shaped pressing piece 119 for adjusting the fitting degree of the blade jig 100 to the blade 1 will be described with reference to fig. 3 to 5.

The upper and lower clamping assemblies may each include a form-following compression member 119, and the form-following compression member 119 may be formed of a member whose shape or angle is adjusted according to the effect of external force so as to be capable of conforming to the size of the blade 1 and the airfoil shape to the surface of the blade 1 when clamping the blade 1. The follower 119 in the upper clamp assembly and the follower 119 of the lower clamp assembly are similar in structure and face each other. Hereinafter, the following-shaped pressing member 119 in the above clamping assembly is exemplified, and its structure and connection relation with other members are described in detail.

The follower 119 of the upper clamp assembly is rotatable by a first deflection shaft 1191 and a second deflection shaft 1192. The first deflection shaft 1191 extends in the chord-wise direction of the blade 1, and the second deflection shaft 1192 extends in the length direction of the blade 1. The chord direction of the blade 1 is perpendicular to the longitudinal direction of the blade 1, and may be the direction from the leading edge to the trailing edge of the blade. In other words, the chord direction of the blade coincides with the extending direction of the hold-down arm 111.

The upper clamp assembly compliant pressure member 119 may include a deflection mount 1193 and a clamp block 1194. One side of the deflection support 1193 is rotatably connected to the hold-down arm 111 via a first deflection shaft 1191; the clamping block 1194 is rotatably connected to the other side of the deflection support 1193 via a second deflection shaft 1192, so that the degree of fit between the clamping block 1194 and the blade 1 in the transverse and longitudinal directions is ensured during the process of clamping the blade by the clamping block 1194, and the variable profile of the blade can be adapted to the variable profile of the follow-up compression member 119.

The particular construction of the follower 119 of the lower clamp assembly is the same as the follower 119 of the upper clamp assembly, except that the deflection support 1193 of the follower 119 of the lower clamp assembly is rotatably connected to the support arm 113, and the clamp blocks 1194 of the follower 119 of the upper and lower clamp assemblies face each other.

Optionally, the follower 119 may also include a deflection frame 1195 and a displacement screw 1196. The yaw frame 1195 is connected to the displacement screw 1196 and is movable back and forth (in the left-right direction in fig. 4 and 5) along the chord length direction of the blade 1 (X direction shown in fig. 4 and 5) by the pushing of the displacement screw 1196, thereby adjusting the position of the follower 119 in the extending direction of the pressing arm 111. The first yaw axis 1191 may be mounted to a yaw frame 1195. After each installation and confirmation of the leaf shape, the displacement screw 1196 is manually adjusted by the ground to adapt to radial deviation caused by the gravity centers of different leaf shapes.

Optionally, the surface of the portion of the gripping block 1194 in contact with the blade 1 may be lined with a layer of rubber, nylon, etc. to prevent damage to the blade when the gripping process is focused on colliding with the blade, increase cushioning capacity and reduce wear on the blade.

The blade 1 may also need to be pitched during lifting in order to achieve pitching of the blade 1 during assembly of the wind turbine and during lifting of the blade, thereby aligning and accurately connecting the blade 1 to the hub, preferably the blade clamping mechanisms 110 and 130 are rotatably connected to the main beam 120 for adjusting the pitch angle of the blade 1. Accordingly, a pitch drive member 141 is provided to drive the blade gripping mechanisms 110 and 130 in rotation relative to the main beam 120.

Further, in order to secure safety and stability during pitching of the blade jig 100 with the blade 1, as shown in fig. 11 to 14, the blade jig 100 may further include a guide rail 142 and a rail groove 143. A rail 142 is formed on one of the blade clamping mechanisms 110 and 130 and the spar 120; a track slot 143 is formed on the other of the blade clamping mechanisms 110 and 130 and the spar 120 and is movable relative to the rail 142. During pitching of the blade, the cooperation of the guide rail 142 and the track groove 143 helps the blade clamping mechanisms 110 and 130 to stably rotate relative to the main beam 120, so that stability of the blade clamp 100 when pitching the blade 1 is improved.

Hereinafter, the connection relationship between the blade holding mechanism 110 and the main beam 120 will be described in detail by taking the example.

In order to rotatably mount the blade clamping mechanism 110 on the spar 120, the spar 120 may include a spar body 121 and legs 122 extending laterally from both ends of the spar body 121 with respect to the spar body 121. As shown in fig. 2 and 11, the legs 122 may be generally perpendicular to the main beam 120. The blade gripping mechanism 110 is arranged outside the legs 122, i.e. facing the end surface of the main beam 120. The support arms 113 of the blade gripping mechanism 110 are connected to the legs 122 of the spar 120 by pins 144 such that the blade gripping mechanism 110 is rotatable about the pins 144 relative to the spar 120.

In an embodiment, the rail 142 is formed on the blade clamping mechanism 110 and the rail slot 143 is formed on the main beam 120. Specifically, as shown in fig. 2 and 11, a guide rail 142 is formed on a side surface of the lower standing arm 114 facing the beam body 121, and a rail groove 143 is formed on an end surface of the beam body 121. However, the present invention is not limited thereto and the positions of the guide rail 142 and the rail groove 143 may be interchanged as needed.

By the cooperation of the track grooves 143 and the guide rails 142, the blade clamping mechanism 110 can play a role in auxiliary guiding in the rotating process of the blade clamping mechanism 110 relative to the main beam 120, and the freedom degree of the pitching process is restrained. In addition, the guide rail 142 can be nested in the track groove 143, so that in the length direction (the direction of the extending direction of the blade) of the main beam 120, the guide rail 142 and the track groove 143 cannot be separated from each other, the problem that a fulcrum cannot be found when the variable pitch driving member 141 rotates at a single point can be solved, and the problem that when the blade clamp 100 drives the blade 1 to change the pitch, the pin shaft rotates to be blocked, so that the stability of the blade clamp 100 in operation is further ensured, and the track groove 143 and the guide rail 142 are designed to be arc-shaped structures along the length direction, the problem of supporting the movable point of the variable pitch driving member 141 can be further solved, and meanwhile, the risk of interference with the main beam 120 in the rotation process of the variable pitch oil cylinder is avoided.

As shown in fig. 13-14, pitch drive member 141 may be a hydraulic cylinder, for example, an automatically controlled hydraulic cylinder. The cylinder body of the hydraulic cylinder is provided at an upper portion of the end of the beam body 121, and the end of the piston rod of the hydraulic cylinder is hinged to a lower portion of the lower standing arm 114. The blade clamping mechanism 110 is driven to rotate relative to the main beam 120 by linear expansion and contraction of the pitch drive member 141, so that the blade 1 clamped by the blade clamping mechanism 110 changes in inclination angle (i.e., pitch) of-7 ° to +7° in the air. However, the present invention is not limited to this, and the pitch drive member 141 may be a drive mechanism capable of driving the blade holding mechanism 110 to rotate relative to the main beam 120, and may be a drive member such as an air cylinder, an electric screw, or a bolt and nut.

Fig. 13 and 14 show schematic views of the blade clamp before and after pitching, respectively. As shown in fig. 13, the blade clamp 100 is in a state before blade pitching, and the piston rod of the pitch drive member 141 is in a state of being extended to the maximum extension stroke. As shown in fig. 14, the blade clamp 100 is in a state after blade pitching, the piston rod of the pitch drive member 141 is retracted, and the blade clamping mechanism 110 is rotated about the pin 144 with respect to the main beam 120, thereby achieving pitching of the blade 1 clamped in the blade clamping mechanism 110.

It should be noted that the blade clamp of the present invention may be used alone or in combination with a hoisting system and/or a control system.

In the above, the blade holder 100 can pitch the blade 1, that is, can rotate the blade 1 such that the chord length thereof rotates around the midpoint in the chord length direction. Further, in order to meet the requirement that the blade lifting tool 100 can rotate at a large angle, for example, 360 ° with the blade 1, the blade lifting tool is connected with the main beam 120 of the blade clamp 100 through the pitching rotation mechanism 400 to drive the blade clamp 100 to integrally rotate, so that the pitching angle of the blade 1 is widely changed in the process of lifting the blade. Here, the pitching rotation mechanism 400 adjusts the pitching angle of the blade 1 means that the blade 1 can rotate so that the longitudinal direction thereof rotates around the center of gravity.

In an embodiment, referring to fig. 15 to 17, the pitch rotation mechanism 400 may include a support frame 410, a rotation shaft 420, a crank 430, and a driving unit 440, wherein the rotation shaft 420 is rotatably disposed on the support frame 410, and a first end of the rotation shaft 420 is used to be connected to the blade clamp 100 to drive the blade clamp 100 to rotate around the rotation shaft 420. The first end of the crank 430 is fixedly coupled to the second end of the rotary shaft 420. The driving unit 440 is connected to a second end of the crank 430, and drives the crank 430 to rotate around and the rotation shaft 420.

The driving unit 440 may include at least two telescopic cylinders, a connecting shaft 450 is fixedly provided at a second end of the crank 430, the connecting shaft 450 is disposed in parallel with the rotation shaft 420, the telescopic oil is connected to the connecting shaft 450, and a telescopic direction of the telescopic cylinders is perpendicular to the connecting shaft 450.

The pitching rotation mechanism 400 drives the blade clamp 100 to rotate through the rotation shaft 420, so that the large-angle rotation of the blade clamp 100 can be realized, in the process of installing the blade, the hub does not need to be rotated, and the blade is driven to rotate to a required angle through the pitching rotation mechanism 400 and can be connected with a variable-pitch bearing at the corresponding position of the hub, so that the installation process of the blade is simplified

The hanger 200 may include a hanger bar 210, a hanging point connection beam 220 and a lifting lug 230, the lifting lug 230 is connected with a hook of a crane, the hanger bar 210 may be connected with one end of the telescopic member 300 to drive the hanger bar 210 to move relative to the hanging point connection beam 220 by the telescopic member 300, and the other end of the telescopic member 300 is mounted on the weight unit 500, so that the gravity center position of the blade lifting tool may be adjusted. Pitch rotation mechanism 400 may be mounted below suspension point attachment cross beam 220 and rotatably coupled to blade clamp 100 to adjust the pitch angle of blade clamp 100.

According to the embodiment of the disclosure, the opening and closing degree of the blade clamping opening can be adjusted, the blade clamping state is maintained, the blade clamp and the blade are prevented from being loosened in the clamping process, and the clamping reliability is ensured.

According to the embodiment of the disclosure, the blade clamp can adapt to the change of different blade profiles of the blade, and the fitting degree of the blade clamp and the blade is improved.

According to the blade clamp disclosed by the embodiment of the invention, the blade can be pitched in the hoisting process, and the stability of the blade clamp when the blade clamp is pitched with the blade is improved through the cooperation of the guide rail and the track groove.

According to the blade hoisting tool (for example, a single blade hoisting tool) disclosed by the embodiment of the disclosure, the pitching angle of the blade can be widely changed in the process of hoisting the blade, turning assistance is not needed, and the blade is convenient to install.

The blade hoisting tool according to the embodiment of the disclosure is at least suitable for hoisting single blades of an offshore wind turbine generator system.

The foregoing is merely a preferred embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions (e.g., the features in the different embodiments of the present disclosure may be combined) that are easily conceivable by those skilled in the art within the technical scope of the present disclosure are intended to be included in the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A blade clamp, characterized in that the blade clamp (100) comprises a blade clamping mechanism (110), the blade clamping mechanism (110) comprising:

an upper clamping assembly comprising a hold-down arm (111) and an upper riser arm (112) extending downwardly from one end of the hold-down arm (111), wherein the hold-down arm (111) is pivotable relative to the upper riser arm (112);

a lower clamping assembly comprising a bearing arm (113) and a lower standing arm (114) extending upwardly from one end of the bearing arm (113), the lower standing arm (114) being connected to an upper standing arm (112) so as to form a space for clamping a blade (1) with the lower clamping assembly by the upper clamping assembly;

a clamping opening adjusting unit (115) connected between the upper standing arm (112) and the lower standing arm (114) and used for driving the upper clamping assembly to move relative to the lower clamping assembly so as to adjust the distance between the pressing arm (111) and the bearing arm (113);

-a first locking assembly (116) for locking the upper riser arm (112) relative to the lower riser arm (114);

an angle adjustment unit (117) including a second telescopic driving mechanism, a second end of which is located inside the upper standing arm (112) and hinged to a lower portion of the upper standing arm (112), and a first end of which is hinged to an end portion of the pressing arm (111) and can be telescopic with respect to an upper end of the upper standing arm (112), thereby being used for driving the pressing arm (111) to rotate with respect to the upper standing arm (112); and

A second locking assembly (118) comprising a locking wedge (1181) having a locking position and a second drive member (1182) for driving the locking wedge (1181) into the locking position, and the locking wedge (1181) having a ramp (1181 a),

wherein, after the angle adjustment unit (117) drives the pressing arm (111) to rotate to a desired angle with respect to the upper standing arm (112), the locking wedge (1181) moves to the locking position such that the inclined surface (1181 a) of the locking wedge (1181) abuts against a lower portion of the first end of the second telescopic driving mechanism in a direction in which the first end of the second telescopic driving mechanism is retracted to restrict the first end of the second telescopic driving mechanism from retracting and form a friction angle self-locking state, thereby locking an angle between the pressing arm (111) and the upper standing arm (112).

2. The blade clamp of claim 1, wherein the first locking assembly (116) comprises:

a first lock (1161) mounted on one of the lower riser arm (114) and the upper riser arm (112);

a second locking member (1162) mounted on the other of the lower and upper riser arms (114, 112) and opposite the first locking member (1161) having a further locked position in which the second locking member (1162) engages the first locking member (1161) to lock the relative position of the upper and lower clamp assemblies and a further unlocked position in which the second locking member (1162) is disengaged from the first locking member (1161) such that the upper riser arm (112) is movable relative to the lower riser arm (114); and

A first drive member (1163) connected to the second lock (1162) for driving the second lock (1162) to move to at least one of the further locked position and the further unlocked position.

3. The blade clamp of claim 2, wherein the first locking member (1161) is a long rack mounted on the lower riser arm (114) and extending in a direction in which the upper riser arm (112) moves relative to the lower riser arm (114); the second locking piece (1162) is a short rack, is mounted on the upper vertical arm (112) and is opposite to the long rack, and can move along a direction perpendicular to the moving direction of the upper vertical arm (112) relative to the lower vertical arm (114) under the driving of the first driving member (1163), so that the short rack and the long rack are meshed with each other at the other locking position, wherein the first driving member (1163) is a telescopic cylinder, and the short rack is arranged at the first end of the telescopic cylinder.

4. The blade clamp according to claim 1, characterized in that the jaw adjustment unit (115) comprises a first telescopic drive mechanism, which is a first telescopic cylinder, one end of which is connected to the lower riser arm (114) and the other end is connected to the upper riser arm (112).

5. The blade clamp according to claim 1, characterized in that the upper part of the upper standing arm (112) is provided with a pivot shaft (1121), the hold-down arm (111) being connected to the upper standing arm (112) by means of the pivot shaft (1121),

the second telescopic driving mechanism is 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, and a second end of the second telescopic oil cylinder is hinged with the lower part of the upper standing arm (112), so that the pressing arm (111) is driven to pivot around the pivot shaft (1121).

6. The blade clamp of claim 5, wherein the locking wedge (1181) further has an unlocked position, and the second drive member (1182) is further configured to drive the locking wedge (1181) to the unlocked position, wherein the locking wedge (1181) is disengaged from the first end of the second telescopic cylinder.

7. The blade clamp of claim 6, wherein the second locking assembly (118) further comprises a support bracket (1183), the support bracket (1183) being mounted to the upper portion of the upper riser (112), the locking wedge (1181) being mounted to the support bracket (1183) and movable in a direction toward or away from the first end of the second telescoping ram.

8. The blade clamp of claim 7, wherein the support frame (1183) has a groove (1184) formed thereon, the groove (1184) extending along a telescopic stroke of the first end of the second telescopic ram to guide a movement trace of the first end of the second telescopic ram, and wherein a bottom of the groove (1184) supports the first end of the second telescopic ram after the first end of the second telescopic ram is retracted.

9. The blade clamp according to claim 1, characterized in that the upper clamping assembly and the lower clamping assembly each comprise a conformal compression member (119), the conformal compression member (119) being rotatable by a first deflection shaft (1191) and a second deflection shaft (1192), the first deflection shaft (1191) extending in the length direction of the blade (1), the second deflection shaft (1192) extending in the chord length direction of the blade (1).

10. The blade clamp according to claim 9, wherein the follower (119) comprises:

a deflection support (1193), wherein one side of the deflection support (1193) is rotatably connected with the pressing arm (111) or the supporting arm (113) through the first deflection shaft (1191); and

And a clamping block (1194) rotatably connected with the other side of the deflection support (1193) through the second deflection shaft (1192).

11. The blade clamp according to claim 9, wherein the follower (119) further comprises a deflection frame (1195) and a displacement screw (1196), the deflection frame (1195) being connected to the displacement screw (1196) and being movable back and forth along the chord length of the blade (1) under the urging of the displacement screw (1196), the first deflection shaft (1191) being mounted on the deflection frame (1195).

12. The blade clamp according to any one of claims 1-11, characterized in that the blade clamp (100) comprises:

a main beam (120); and

and more than two blade clamping mechanisms (110) are arranged on the main beam (120) to clamp the blade (1) at different positions in the length direction of the blade (1).

13. The blade clamp according to claim 12, characterized in that the blade clamping mechanism (110) is rotatably arranged to the main beam (120) for adjusting the pitch angle of the blade (1).

14. A blade clamp, characterized in that the blade clamp (100) comprises a blade clamping mechanism (110), the blade clamping mechanism (110) comprising:

A second locking assembly (118) comprising: a baffle plate (1185) mounted on the upper standing arm (112) and arranged on a telescopic path of the first end of the second telescopic driving mechanism; an eccentric wheel (1186) mounted on the hold-down arm (111) and rotatable relative to the hold-down arm (111) to a locked position and comprising a long diameter end and a short diameter end; and a third driving member (1187) mounted on the pressing arm (111) and configured to drive the eccentric wheel (1186) to rotate,

wherein, after the angle adjustment unit (117) drives the pressing arm (111) to rotate to a desired angle with respect to the upper standing arm (112), the third driving member (1187) drives the eccentric (1186) to rotate to the locking position such that the long diameter end rotates to the baffle (1185) and abuts on the baffle (1185) to restrict the first end of the second telescopic driving mechanism from retracting, thereby locking the angle between the pressing arm (111) and the upper standing arm (112).

15. The blade clamp of claim 14, wherein the eccentric (1186) is further rotatable relative to the hold-down arm (111) to an unlocked position, and the third drive member (1187) is further configured to drive the eccentric (1186) to the unlocked position in which the short diameter end is rotated to the stop (1185) and separated from the stop (1185).

16. The blade clamp of claim 14, wherein the first locking assembly (116) comprises:

17. The blade clamp of claim 16, wherein the first locking member (1161) is a long rack mounted on the lower riser arm (114) and extending in a direction in which the upper riser arm (112) moves relative to the lower riser arm (114); the second locking piece (1162) is a short rack, is mounted on the upper vertical arm (112) and is opposite to the long rack, and can move along a direction perpendicular to the moving direction of the upper vertical arm (112) relative to the lower vertical arm (114) under the driving of the first driving member (1163), so that the short rack and the long rack are meshed with each other at the other locking position, wherein the first driving member (1163) is a telescopic cylinder, and the short rack is arranged at the first end of the telescopic cylinder.

18. The blade clamp according to claim 14, characterized in that the jaw adjustment unit (115) comprises a first telescopic drive mechanism, which is a first telescopic cylinder, one end of which is connected to the lower riser arm (114) and the other end is connected to the upper riser arm (112).

19. The blade clamp according to claim 14, characterized in that the upper part of the upper riser arm (112) is provided with a pivot shaft (1121), the hold-down arm (111) being connected to the upper riser arm (112) by means of the pivot shaft (1121),

20. The blade clamp according to claim 14, wherein the upper clamping assembly and the lower clamping assembly each comprise a conformal compression member (119), the conformal compression member (119) being rotatable by a first deflection shaft (1191) and a second deflection shaft (1192), the first deflection shaft (1191) extending in a length direction of the blade (1), the second deflection shaft (1192) extending in a chord length direction of the blade (1).

21. The blade clamp of claim 20, wherein the follower compression member (119) comprises:

22. The blade clamp according to claim 20, wherein the follower (119) further comprises a deflection frame (1195) and a displacement screw (1196), the deflection frame (1195) being connected to the displacement screw (1196) and being movable back and forth along the chord length of the blade (1) under the urging of the displacement screw (1196), the first deflection shaft (1191) being mounted on the deflection frame (1195).

23. The blade clamp according to any of claims 14-22, characterized in that the blade clamp (100) comprises:

a main beam (120); and

24. The blade clamp according to claim 23, characterized in that the blade clamping mechanism (110) is rotatably arranged to the main beam (120) for adjusting the pitch angle of the blade (1).

25. Blade hoist and mount frock, its characterized in that, blade hoist and mount frock includes:

the blade clamp (100) of any of claims 1-24;

and the pitching rotation mechanism (400) is connected with the blade clamp (100) so as to drive the blade clamp (100) to integrally rotate.