Blade clamping unit and blade hanger

Abstract

The present disclosure provides a kind of vane clamping unit and vane lifting appliance, the vane clamping unit includes frame, pressing arm, vane clamp block and bottom support, the pressing arm is connected to the frame, the vane clamp block is connected to the pressing arm, for clamping on the outer surface of vane, the bottom support is connected to the frame, the pressing arm is spaced below the pressing arm, the bottom support includes bottom support seat, bottom support body and telescopic support, the bottom support seat is connected to the frame, the bottom support body is movably connected above the bottom support seat, the telescopic support is supported between the bottom support seat and the bottom support body, so that the bottom support body can swing relative to the bottom support seat, so that bottom support body is movably connected to frame, to be able to adapt to different vane, improve the versatility of vane clamping unit.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of wind power generation, and particularly relates to a blade clamping unit and a blade lifting device. BACKGROUND

[0002] With the continuous increase of single machine capacity of wind turbine generators, the size of the blades of the wind turbine generators also increases.

[0003] The blades are usually installed on the top of the tower by using a blade lifting device. In order to improve the efficiency of on-site hoisting, the current blade lifting device mainly adopts customized clamping blocks. However, the customized clamping blocks have high cost, and different clamping blocks are required for different blades. In addition, there is also a ball hinge bottom support structure which can automatically adapt to the fitting degree according to the blade angle. However, the ball hinge is unstable when clamping the blade each time, and the blade clamping shakes, which leads to the extension of the on-site assembly time and the increase of the assembly cost of the wind turbine generator. SUMMARY

[0004] The main purpose of the present disclosure is to provide a blade clamping unit and a blade lifting device to improve the universality of the blade clamping unit and reduce the blade assembly cost, thereby reducing the assembly cost of the wind turbine generator.

[0005] To achieve the above purpose, the present disclosure provides at least the following technical solutions:

[0006] In one aspect of the present disclosure, a blade clamping unit is provided, which comprises a frame, a pressing arm, a blade clamping block and a bottom support. The pressing arm is connected to the frame, the blade clamping block is connected to the pressing arm for clamping on the outer surface of the blade, and the bottom support is connected to the frame. The pressing arm is spaced below the pressing arm. The bottom support comprises a bottom support seat, a bottom support body and a telescopic support. The bottom support seat is connected to the frame, the bottom support body is movably connected above the bottom support seat, and the telescopic support is supported between the bottom support seat and the bottom support body, so that the bottom support body can swing relative to the bottom support seat.

[0007] In an exemplary embodiment of the present disclosure, the bottom support body comprises a vertical plate and an elastic member. The elastic member is used to support the blade, and the vertical plate extends longitudinally downward from the elastic member. The bottom support seat is provided with a containing groove for containing the vertical plate, and the vertical plate is slidably arranged in the containing groove in a first direction.

[0008] Optionally, the bottom support further comprises a connecting member, the upright plate is provided with an upright plate connecting hole, a wall of the accommodating groove is provided with a wall hole matched with the upright plate connecting hole, and the connecting member is arranged in the upright plate connecting hole and the wall hole, at least one of the upright plate connecting hole and the wall hole is provided with a waist-shaped hole extending in a first direction, and the upright plate is slidably arranged in the accommodating groove.

[0009] Specifically, an end of the upright plate away from the elastic member presents a first arc line along an extension direction of the accommodating groove, a groove bottom of the accommodating groove presents a second arc line along the extension direction of the accommodating groove, and a curvature radius of the first arc line is not greater than a curvature radius of the second arc line.

[0010] Further, the elastic member extends in a second direction, the upright plates are arranged in pairs, and one pair of the upright plates are respectively supported at two ends of the extension direction of the elastic member, the top of the upright plate is provided with an upright plate clamping groove, the elastic member is provided with a clamping rib matched with the upright plate clamping groove, the clamping rib is rotatably arranged in the upright plate clamping groove, and the second direction is perpendicular to the first direction.

[0011] In another example embodiment of the present disclosure, the pressing arm comprises a pressing arm base and a telescopic arm, the pressing arm base is rotatably connected to the frame, the telescopic arm is movably connected to the pressing arm base and can extend or retract relative to the pressing arm base along the extension direction of the pressing arm base, and the vane clamping block is movably connected to the telescopic arm.

[0012] Optionally, the vane clamping block comprises a connecting base and a clamping block unit, the connecting base is connected to the telescopic arm, and the clamping block unit is rotatably connected to the connecting base.

[0013] Specifically, the vane clamping unit further comprises a pressing arm driving member, two ends of the pressing arm driving member are respectively hinged to the frame and the pressing arm base, and the pressing arm driving member can drive the pressing arm base to rotate relative to the frame.

[0014] Further, the clamping block unit comprises a clamping block body and a clamping block base, the clamping block base is rotatably connected to the connecting base, and the clamping block body is connected to a side of the clamping block base facing the bottom support, so that the clamping block body is rotatably connected to the telescopic arm.

[0015] In another example embodiment of the present disclosure, one of the telescopic arm and the pressing arm base is provided with a sliding groove extending along the extension direction of the pressing arm, the other is provided with a sliding block matched with the sliding groove, and the sliding block is slidably arranged in the sliding groove, so that the telescopic arm can slide relative to the pressing arm base.

[0016] Optionally, the connecting seat is slidably connected to the telescopic arm, one of the connecting seat and the telescopic arm is provided with a rolling support, and the rolling support is arranged between the connecting seat and the telescopic arm.

[0017] Specifically, the vane clamping block further comprises a cross shaft, a first shaft of the cross shaft is rotatably connected to the connecting seat, and a second shaft of the cross shaft is rotatably connected to the clamping block unit, and the first shaft and the second shaft are arranged perpendicularly.

[0018] Further, the vane clamping unit further comprises an angle sensor, and the angle sensor is arranged on at least one of the bottom support and / or the vane clamping block.

[0019] In another example embodiment of the present disclosure, the vane clamping unit further comprises a controller and a pressure sensor, the pressure sensor is used to detect the pressure of the clamping block body and / or the bottom support body, the controller can receive the angle information detected by the angle sensor and the pressure information detected by the pressure sensor, and control the start and stop of the pressure arm driving member and / or the start and stop of the telescopic support member according to the angle information and the pressure information.

[0020] In another aspect of the present disclosure, a vane lifting device is provided, which comprises a clamp main beam and a vane clamping unit as described above, and the vane clamping unit is connected to the clamp main beam. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or other objects and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

[0022] Figure 1 A structural diagram of a vane lifting device provided for an example embodiment of the present disclosure is shown.

[0023] Figure 2 For Figure 1 A side view of a vane lifting device.

[0024] Figure 3 For Figure 1 A structural diagram of a vane clamping unit.

[0025] Figure 4 For Figure 3 A partial structural explosion diagram of a pressure arm.

[0026] Figure 5 For Figure 3 A partial structural explosion diagram of a bottom support.

[0027] Figure 6 For Figure 3 An enlarged view of a bottom support body.

[0028] Figure 7 Fig. 1 is a perspective view of a leaflet clamping unit according to the present application; Figure 6 Fig. 2 is a perspective view of a middle clamping rib and a vertical plate clamping slot in a first combined state;

[0029] Figure 8 Fig. 3 is a perspective view of a middle clamping rib and a vertical plate clamping slot in a second combined state; Figure 6 Fig. 4 is a perspective view of a middle clamping rib and a vertical plate clamping slot in a third combined state;

[0030] Figure 9 Fig. 5 is a perspective view of a middle clamping rib and a vertical plate clamping slot in a fourth combined state; Figure 6 Fig. 6 is a perspective view of a middle clamping rib and a vertical plate clamping slot in a fifth combined state;

[0031] BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 1. leaflet; 10. leaflet clamping unit;

[0033] 11. frame; 12. bottom support;

[0034] 13. pressing arm; 14. leaflet clamping block;

[0035] 15. pressing arm driving member;

[0036] 20. clamping main beam; 30. lifting belt;

[0037] 40. lifting beam; 41. horizontal beam;

[0038] 42. vertical beam; 43. telescopic member;

[0039] 121. bottom support base; 122. bottom support main body;

[0040] 123. telescopic support member; 131. pressing arm base;

[0041] 132. telescopic arm; 141. connecting base;

[0042] 142. cross shaft; 143. clamping block base;

[0043] 144. clamping block main body; 145. rolling support;

[0044] 146. elastic support; 147. angle sensor;

[0045] 1221. vertical plate; 1222. elastic member;

[0046] 1223. anti-collision strip; 1224. vertical plate clamping slot;

[0047] 1225. clamping rib; 1226. vertical plate connecting hole;

[0048] 1227. slot wall hole. DETAILED DESCRIPTION

[0049] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. The example embodiments, however, can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like reference numerals refer to like elements throughout the drawings, and thus their detailed description will be omitted.

[0050] The present disclosure provides an auxiliary installation tool for a wind turbine generator set, in particular, the auxiliary installation tool can be a blade hoist for installing a blade to the top of a tower.

[0051] In particular, the installation of the blade can generally include two ways, way one, the blade can be pre-installed on the hub to form an impeller in combination with the hub, and then the impeller is hoisted by the blade hoist to be installed on the top of the tower; way two, the hub can also be pre-installed on the top of the tower, and then the blade hoist is used to hoist and install multiple blades on the hub respectively.

[0052] With reference to Figure 1 The present disclosure provides a blade hoist, which includes a clamp main beam 20 and a blade clamping unit 10 connected at both ends of the clamp main beam 20, the blade clamping unit 10 is mainly used for clamping the blade to avoid the blade 1 from being separated from the blade hoist. The clamp main beam 20 is mainly used for bearing the weight of the blade and the weight of the blade clamping unit 10.

[0053] As an example, the blade hoist in the embodiment also includes a sling 30 and a hoist beam 40, the clamp main beam 20 can be connected through the sling 30 and the hoist beam 40, but not limited thereto. The hoist beam 40 is used for connecting with a large hoisting tool such as a crane, that is, the blade hoist provided by the present disclosure can be used in cooperation with a large hoist.

[0054] In order to facilitate the blade hoist to adjust the balance, the hoist beam 40 also includes a cross beam 41, a longitudinal beam 42 and a telescopic piece 43 connected between the cross beam 41 and the longitudinal beam 42, the cross beam 41 is arranged substantially in parallel with the clamp main beam 20, the bottom end of the longitudinal beam 42 is rotatably connected to the cross beam 41, and the top end of the longitudinal beam 42 can be used for connecting a large hoist such as a crane. The two ends of the telescopic piece 43 are respectively hinged on the cross beam 41 and the longitudinal beam 42, so as to adjust the included angle between the cross beam 41 and the longitudinal beam 42, thereby adjusting the included angle between the clamp main beam 20 and the horizontal plane, for example but not limited to, it can be used for adjusting or adjusting the angle of the unit disc. As an example, the telescopic piece 43 can be a telescopic cylinder or a lead screw assembly, but not limited thereto. In the embodiment, the telescopic piece 43 is taken as an example for illustration by including a hydraulic cylinder, but not limited thereto, it can be understood that the telescopic piece 43 can also be a pneumatic cylinder.

[0055] In order to facilitate the adjustment of the included angle between the clamp main beam 20 and the horizontal plane, the sling 30 is two groups, and the two groups of slings 30 are connected at both ends of the cross beam 41 respectively, so as to be connected at both ends of the clamp main beam 20, but not limited thereto.

[0056] With reference to the drawings Figure 1 The blade lifting device provided by the present disclosure comprises a pair of blade clamping units 10 respectively clamped at the blade root and the blade tip of the blade, so as to keep the blade balanced during lifting, avoid the blade 1 from accidentally separating from the blade lifting device, and thus improve the use reliability of the blade lifting device.

[0057] With reference to the drawings Figures 1 to 6 Specifically, the blade clamping unit 10 comprises a frame 11, a bottom support 12, a pressing arm 13 and a blade clamping block 14, wherein the bottom support 12 and the pressing arm 13 are oppositely arranged on the frame 11 to be respectively clamped on the upper surface and the lower surface of the blade.

[0058] As an example, the frame 11 is substantially C-shaped, and the frame 11 comprises a longitudinal side wall and a pair of opposite and spaced transverse side walls respectively arranged at both ends of the longitudinal side wall, and the bottom support 12 is arranged on the lower transverse side wall, but not limited thereto.

[0059] The pressing arm 13 comprises a pressing arm base 131, which is rotatably connected to the frame 11, so that the pressing arm 13 can be rotatably connected to the frame 11. As an example, one end of the pressing arm base 131 is rotatably connected to the frame 11, and the other end of the pressing arm base 131 can be swung towards or away from the bottom support 12. When the other end of the pressing arm base 131 swings away from the bottom support 12, the space between the pressing arm 13 and the bottom support 12 increases, so as to facilitate the blade 1 to be placed in the space. When the blade 1 is placed in the space, the other end of the pressing arm base 131 can swing towards the bottom support 12 to reduce the space between the pressing arm 13 and the bottom support 12, so that the blade clamping unit 10 is tightly clamped on the blade 1.

[0060] In this embodiment, the pressing arm base 131 is rotatably connected to the frame 11, and the other end of the pressing arm base 131 can be swung towards the bottom support 12 or away from the bottom support 12, so as to adjust the space between the pressing arm 13 and the bottom support 12, thereby realizing the functions of clamping the blade 1 or releasing the blade 1.

[0061] With reference to the drawings Figures 1 to 3 As an example, the blade clamping unit 10 further comprises a pressing arm driving member 15, both ends of the pressing arm driving member 15 are respectively hinged to the frame 11 and the pressing arm base 131, and the pressing arm driving member 15 can drive the pressing arm base 131 to rotate relative to the frame 11.

[0062] For the convenience of description, the embodiment takes the pressure arm driving member 15 as an example for illustration, which is a hydraulic cylinder for example but not limited to. Specifically, one end of the pressure arm driving member 15 is hinged to the frame 11, and the other end is hinged to the pressure arm seat 131, so as to drive the pressure arm seat 131 to swing relative to the frame 11 through the extension and retraction of the pressure arm driving member 15, so that the pressure arm seat 131 can swing towards the base 12 or away from the base 12, but not limited to.

[0063] Further, referring to Figure 3 and Figure 4 , the pressure arm 13 further comprises a telescopic arm 132, and the blade clamping block 14 is connected to the telescopic arm 132, and the blade clamping block 14 has a fitting surface that fits the surface of the blade 1, so that the blade clamping block 14 can be firmly fitted on the surface of the blade 1.

[0064] The telescopic arm 132 is movably connected to the pressure arm seat 131 and can be extended or retracted relative to the pressure arm seat 131 along the extension direction of the pressure arm seat 131, so that the length of the pressure arm 13 in the extension direction is adjustable, driving the blade clamping block 14 to move relative to the frame 11, thereby adapting to different blades 1. In the embodiment, the length of the pressure arm 13 in the extension direction is adjusted by extending or retracting the telescopic arm 132 relative to the pressure arm seat 131 along the extension direction of the pressure arm seat 131, thereby improving the versatility of the blade clamping unit 10 to adapt to different blades 1.

[0065] In order to improve the connection reliability between the telescopic arm 132 and the pressure arm seat 131, one of the telescopic arm 132 and the pressure arm seat 131 is provided with a sliding groove extending along the extension direction of the pressure arm 13, and the other is provided with a sliding block matched with the sliding groove, and the sliding block is slidably arranged in the sliding groove, so that the telescopic arm 132 can slide relative to the pressure arm seat 131. In the embodiment, the sliding block is slidably arranged in the sliding groove, and the sliding groove has a guiding effect on the sliding block, thereby improving the reliability of the movement of the sliding block, and the sliding block and the sliding groove are arranged on one of the telescopic arm 132 and the pressure arm seat 131, thereby improving the reliability of the relative sliding of the telescopic arm 132 and the pressure arm seat 131.

[0066] For the convenience of description, the sliding block is arranged on the telescopic arm 132 and the sliding groove is arranged on the pressure arm seat 131 in the embodiment, for example but not limited to, the sliding block is arranged on both sides of the telescopic arm 132 in the width direction and extends along the extension direction of the pressure arm 13, and the sliding groove and the sliding block are arranged in parallel.

[0067] Further, in order to drive the telescopic arm 132 to slide relative to the pressing arm base 131, the pressing arm 13 can further comprise a slide arm driving member, two ends of the slide arm driving member are connected to the telescopic arm 132 and the pressing arm base 131 respectively. As an example, the slide arm driving member can be a telescopic member, for example but not limited to, the telescopic member extends along the extension direction of the pressing arm 13, so as to drive the telescopic arm 132 to slide relative to the pressing arm base 131 by the extension and contraction of the telescopic member. Alternatively, the telescopic member can be a hydraulic cylinder, but not limited thereto.

[0068] In order to further improve the use reliability of the blade clamping unit 10, the connecting seat 141 is slidably connected to the telescopic arm 132, one of the connecting seat 141 and the telescopic arm 132 is provided with a rolling support 145, and the rolling support 145 is arranged between the connecting seat 141 and the telescopic arm 132. In the embodiment, the telescopic arm 132 is slidably connected relative to the pressing arm base 131, so that the length of the pressing arm 13 is adjustable to preliminarily adapt to different blades 1, thereby improving the universality of the blade clamping unit 10. The present disclosure slidably connects the connecting seat 141 to the telescopic arm 132, and after the length of the pressing arm 13 is substantially matched with the blade 1, the connecting seat 141 is further slid relative to the telescopic arm 132 to realize the fine adjustment of the position of the clamping unit, so that the position of the clamping unit relative to the blade 1 is more accurate.

[0069] The present disclosure slidably connects the telescopic arm 132 relative to the pressing arm base 131, so that the length of the pressing arm 13 is adjustable, and the connecting seat 141 is slidably connected to the telescopic arm 132, that is, the telescopic arm 132 is slidably connected to the connecting seat 141, and the two can cooperate to realize the accurate positioning of the position of the clamping unit, thereby improving the moving accuracy of the clamping unit, and improving the use reliability of the blade clamping unit 10.

[0070] Further, in the embodiment, one of the connecting seat 141 and the telescopic arm 132 is provided with a rolling support 145, and the rolling support 145 is arranged between the connecting seat 141 and the telescopic arm 132, that is, the rolling support 145 is arranged on the side of the connecting seat 141 away from the clamping unit, and when the clamping unit is attached to the blade 1, the rolling support 145 can provide the connecting seat 141 with a support force substantially along the normal direction of the outer surface of the blade 1, thereby avoiding the deformation of the clamping unit, and improving the attachment reliability between the clamping unit and the blade 1.

[0071] As an example, the embodiment is described by taking the rolling support 145 comprising a rolling bearing as an example, but not limited thereto, the rolling support 145 can also be a hemisphere fixed on the connecting seat 141, or a rolling ball.

[0072] Continuing to refer to Figure 4In the embodiment, the blade clamp block 14 comprises a connecting seat 141 connected to the telescopic arm 132 and a clamp block unit rotatably connected to the connecting seat 141, so that the clamp block unit can be rotated relative to the connecting seat 141 and can be attached to the outer surface of the blade 1, further improving the versatility of the blade clamping unit 10.

[0073] For example, in the embodiment, the clamp block unit comprises a clamp block body 144 and a clamp block seat 143, wherein the clamp block seat 143 is rotatably connected to the connecting seat 141, and the clamp block body 144 is fixed to the clamp block seat 143, for example but not limited to, the clamp block body 144 is connected to the side of the connecting seat 141 facing the base 12, so that the clamp block body 144 can be rotated together with the clamp block seat 143 relative to the connecting seat 141, thereby being attached to the outer surface of the blade 1, further improving the versatility of the blade clamping unit 10.

[0074] Further, the blade clamp block 14 further comprises a cross shaft 142, a first shaft of the cross shaft 142 is rotatably connected to the connecting seat 141, so that the cross shaft 142 can be rotated relative to the connecting seat 141 about the first shaft, and the clamp block unit is rotatably connected to a second shaft of the cross shaft 142, so that the clamp block unit can be rotated relative to the cross shaft 142 about the second shaft, wherein the first shaft and the second shaft are arranged perpendicularly, so that the clamp block unit is rotated relative to the connecting seat 141 through the cross shaft 142, so that the clamp block unit can be flexibly rotated in a larger range, thereby adapting to the outer surface of different blades 1 or different clamping positions of the same blade 1, and the blade clamp block 14 can be stably clamped on the outer surface of the blade 1, thereby improving the versatility and reliability of the blade clamping unit 10.

[0075] For example, in the embodiment, a force sensor is arranged on the cross shaft 142 for monitoring the size of the clamping force acting on the cross shaft 142, but not limited thereto. Alternatively, the cross shaft 142 in the embodiment is a cross universal joint, which has the function of a pin shaft sensor for monitoring the size of the clamping force acting on the cross universal joint, and also has the function of a pin shaft for connecting the clamp block unit and the connecting seat 141.

[0076] In the embodiment, the clamp block seat 143 can be made of metal to improve the structural strength. The clamp block body 144 can be made of rubber to avoid scratching the surface of the blade 1, for example, the clamp block body 144 can be connected to the clamp block seat 143 by fasteners, or can be formed by an integral molding process. The clamp block seat 143 can be rotatably connected to the connecting seat 141 through the cross shaft 142 to improve the flexibility of the blade clamping unit 10.

[0077] Continuing to refer to Figure 4The blade clamping block 14 further comprises an elastic support 146 fixed to the circumference of the clamping block base 143, and an elastic piece is arranged at the end of the elastic support 146 facing the clamping block body 144, which is supported on the clamping block body 144. When the blade clamping unit 10 is clamped on the blade 1, the elastic support 146 is used for buffering after clamping the blade 1, avoiding damage to the blade 1, thereby improving the use reliability of the blade clamping unit 10.

[0078] As an example, the blade clamping block 14 further comprises an angle sensor 147 arranged on the clamping block body 144, for example but not limited to, the angle sensor 147 is arranged on the circumferential outer wall of the clamping block body 144. Optionally, the angle sensor 147 can be a horizontal inclinometer for testing the angle between the clamping block body 144 and the horizontal plane.

[0079] With reference to Figure 5 In this embodiment, the bottom support 12 is arranged below the pressing arm 13 to form a containing space between the pressing arm 13 and the bottom support 12 for containing the blade 1.

[0080] In order to improve the use versatility of the blade clamping unit, the bottom support 12 comprises a bottom support base 121, a bottom support body 122 and a telescopic support 123. The bottom support base 121 is connected to the frame 11, for example but not limited to, the bottom support base 121 is connected to the lower side wall of the frame 11. The bottom support body 122 is movably connected to the bottom support base 121, for example but not limited to, the bottom support body 122 is movably connected above the bottom support base 121. The telescopic support 123 is supported between the bottom support base 121 and the bottom support body 122, so that the bottom support body 122 can swing relative to the bottom support base 121, that is, the bottom support body 122 and the telescopic support 123 are swingably connected, so that the bottom support body 122 is movably connected to the frame 11 to adapt to different blades 1, further improving the versatility of the blade clamping unit 10.

[0081] In this embodiment, the telescopic support 123 can bear the gravity of the bottom support body 122 and the gravity of the blade 1, and the length of the telescopic support 123 in the extension direction is adjustable, so that the position of the connecting point between the bottom support body 122 and the telescopic support 123 is adjustable, that is, the swing shaft position of the bottom support body 122 is adjustable, thereby further improving the versatility of the bottom support 12 to better adapt to different blades 1.

[0082] As an example, the telescopic support 123 comprises a telescopic cylinder or a lead screw assembly, but is not limited thereto. For convenience of description, the telescopic support 123 comprises a telescopic cylinder in this embodiment, and optionally, the telescopic support 123 comprises a hydraulic cylinder in this embodiment, but is not limited thereto.

[0083] In the embodiment, in order to avoid the movement of the bottom holder body 122 being stuck, the two ends of the telescopic support 123 are respectively hinged to the bottom holder base 121 and the bottom holder body 122, that is, the bottom holder body 122 and the telescopic support 123 are connected through a pin shaft, and the bottom holder body 122 swings around the pin shaft relative to the bottom holder base 121, so as to be able to adapt to different blades 1. Further, the length of the telescopic support 123 in the extension direction thereof is adjustable, that is, the position of the pin shaft is adjustable, so as to further improve the universality of the bottom holder 12, so as to be able to better adapt to different blades 1.

[0084] Optionally, a pressure sensor can also be arranged on the telescopic support 123, so as to measure the pressure acting on the telescopic support 123. In the embodiment, the telescopic support 123 is a pair, and the pair of telescopic supports 123 are respectively arranged at different positions of the bottom holder body 122, and the pin shafts of the pair of telescopic supports 123 are coaxially arranged. Through the pressure sensor on the telescopic support 123, whether the pressures acting on the different telescopic supports 123 are the same can be measured, so as to be able to judge whether the telescopic support 123 is lengthened or shortened according to the pressure value.

[0085] Continuing to refer to the drawings, in the embodiment, the bottom holder body 122 includes a vertical plate 1221 and an elastic member 1222, the elastic member 1222 is used for supporting the blade 1, the vertical plate 1221 is arranged on the side of the elastic member 1222 away from the blade 1, the vertical plate 1221 extends longitudinally downward from the elastic member 1222, the bottom holder base 121 is provided with a containing groove for containing the vertical plate 1221, and the vertical plate 1221 is slidably arranged in the containing groove in the first direction.

[0086] In the embodiment, the containing groove in the first direction is arranged on the bottom holder base 121, so that the vertical plate 1221 is slidably arranged in the containing groove, so that the containing groove is used for guiding the sliding of the vertical plate 1221, the reliability of the movement of the vertical plate 1221 is improved, and thus the use reliability of the bottom holder 12 is improved.

[0087] In order to further improve the use reliability of the bottom holder 12 and avoid the bottom holder body 122 and the bottom holder base 121 being accidentally separated, the bottom holder 12 further includes a connecting piece (not shown in the figure), the vertical plate 1221 is provided with a vertical plate connecting hole 1226, the groove wall of the containing groove is provided with a groove wall hole 1227 matched with the vertical plate connecting hole 1226, the connecting piece is arranged in the vertical plate connecting hole 1226 and the groove wall hole 1227, and at least one of the vertical plate connecting hole 1226 and the groove wall hole 1227 is arranged as a waist-shaped hole extending in the first direction, so that the vertical plate 1221 is slidably arranged in the containing groove.

[0088] In the embodiment, the base body 122 and the base seat 121 are connected together by the connecting piece, which avoids the base body 122 and the base seat 121 from being accidentally separated, thereby improving the use reliability of the base 12. As an example, the connecting piece can be a pin shaft or a bolt, but is not limited thereto. Further, at least one of the upright plate connecting hole 1226 and the groove wall hole 1227 is provided as a waist-shaped hole extending in the first direction, and the connecting piece can slide in the waist-shaped hole, so that the base body 122 can slide in the first direction relative to the base seat 121, thereby improving the use versatility of the base 12.

[0089] With reference to Figure 5 For the convenience of description, the upright plate connecting hole 1226 and the groove wall hole 1227 are both taken as examples of the waist-shaped hole extending in the first direction, but are not limited thereto.

[0090] In the embodiment, the telescopic support 123 is used as a sliding driving piece of the upright plate 1221, so as to drive the base body 122 to slide in the first direction relative to the base seat 121. As an example, the telescopic support 123 is arranged obliquely, so as to be capable of supporting the gravity of the base body 122 and driving the base body 122 to slide in the first direction relative to the base seat 121. Alternatively, the included angle between the extension direction of the telescopic support 123 and the extension direction of the base seat 121 is within the range of 30°-60°, for example but not limited to, the included angle can be 45°, but is not limited thereto.

[0091] With reference to Figure 5 The elastic piece 1222 extends substantially along the extension direction of the clamp main beam 20, and the first direction is perpendicular to the extension direction of the clamp main beam 20. In the embodiment, the first direction is a horizontal direction perpendicular to the extension direction of the clamp main beam 20, but is not limited thereto. In the embodiment, the elastic piece 1222 includes a rubber piece, which avoids scratching the blade 1.

[0092] In order to further improve the versatility of the base 12, the end of the upright plate 1221 away from the elastic piece 1222 is provided with a first arc line along the extension direction of the accommodating groove, and the groove bottom of the accommodating groove is provided with a second arc line along the extension direction of the accommodating groove, and the curvature radius of the first arc line is not greater than the curvature radius of the second arc line.

[0093] As an example, the base seat 121 includes base upright plates, each upright plate 1221 corresponds to a pair of base upright plates, and the pair of base upright plates are parallel and arranged in a spaced manner along the extension direction of the elastic piece 1222. The accommodating groove is arranged between the pair of base upright plates, that is, the pair of base upright plates form a double-layer web structure, each base upright plate extends in the first direction, so that the accommodating groove extends in the first direction, and the accommodating groove forms a double-layer web hollow structure.

[0094] The bottom support 12 provided by the present disclosure swings relative to the bottom support base 121 with the connection point between the telescopic support 123 and the bottom support body 122 as the pivot, and under the drive of the telescopic support 123, the vertical plate 1221 can be in contact with different parts of the groove bottom of the accommodating groove for adapting to different blades 1. Further, the end of the vertical plate 1221 away from the elastic member 1222 extends along the extension direction of the accommodating groove in a first arc, and the groove bottom of the accommodating groove extends along the extension direction of the accommodating groove in a second arc, and the curvature radius of the first arc is not greater than the curvature radius of the second arc, further improving the versatility of the bottom support 12.

[0095] With reference to Figures 6 to 9 In order to further improve the use reliability of the bottom support 12, the elastic member 1222 is swingably connected to the vertical plate 1221 to better fit the outer surface of the blade 1, and the vertical plate 1221 is arranged at both ends of the elastic member 1222 to support both ends of the elastic member 1222, but not limited thereto.

[0096] As an example, the elastic member 1222 extends in the second direction, which is parallel to the extension direction of the clamp main beam 20, but not limited thereto. The vertical plates 1221 are arranged in pairs, and one pair of vertical plates 1221 are respectively supported at both ends of the extension direction of the elastic member 1222, and the top of the vertical plate 1221 is provided with a vertical plate clamping groove 1224, and the elastic member 1222 is provided with a clamping rib 1225 matched with the vertical plate clamping groove 1224, and the clamping rib 1225 is rotatably arranged in the vertical plate clamping groove 1224, and the second direction is perpendicular to the first direction.

[0097] In the present embodiment, the clamping rib 1225 is rotatably arranged in the vertical plate clamping groove 1224, so that the elastic member 1222 is rotatably supported on the vertical plate 1221, for example but not limited to, the vertical plate clamping groove 1224 is recessed downward from the top wall of the vertical plate 1221, but not limited thereto.

[0098] In order to accurately measure the angle between the blade 1 and the horizontal plane, the angle sensor 147 is arranged on the bottom support 12, which can be a horizontal inclinometer for testing the angle between the bottom support 12 and the horizontal plane. Optionally, the angle sensor 147 is arranged in multiple (not shown in the figure) along the circumference of the bottom support body 122 for measuring the angle between the bottom support body 122 and the horizontal plane. Considering that the bottom support body 122 is substantially parallel to the surface of the blade, the inclination angle of the surface of the blade can be obtained.

[0099] Further, the blade clamping unit 10 further comprises a controller and a pressure sensor, the pressure sensor is used to detect the pressure of the clamping block body 144 and / or the bottom support body 122, the controller can receive the angle information detected by the angle sensor 147 and the pressure information detected by the pressure sensor, and control the start and stop of the pressure arm driving part 15 and / or the telescopic support part 123 according to the angle information and the pressure information.

[0100] The blade clamping unit 10 provided by the present disclosure can be extended or retracted relative to the pressure arm seat 131 along the extension direction of the pressure arm seat 131 through the telescopic arm 132, so that the length of the pressure arm 13 in the extension direction is adjustable, and the blade clamping block 14 is driven to move relative to the frame 11, thereby adapting to different blades 1, and the versatility of the blade clamping unit 10 is improved. Further, in the embodiment, the clamping block unit is rotatably connected to the connecting seat 141, and the connecting seat 141 is connected to the telescopic arm 132, so that the clamping block unit can swing relative to the pressure arm 13, and the clamping block unit can be adjusted according to the position of the web and the main beam of the blade 1, thereby improving the versatility of the blade clamping unit 10.

[0101] Further, the bottom support 12 can realize fine adjustment after clamping the blade 1. The shaft angle of the blade 1 during transportation is generally not greater than 2 degrees, so the adjustment structure of the bottom support 12 can accurately realize this function. Further, the angle sensor 147 is arranged on the bottom support body 122 and the clamping block body 144 respectively, so as to measure the included angle between the bottom support body 122 and the clamping block body 144, so as to obtain the inclination angle of the pressure surface and the suction surface of the blade, and the controller determines the shaft angle of the blade according to the measured included angle and the clamped position, and controls the posture of the clamping main beam, so as to accurately realize the seamless conversion of the shaft angle of the blade in the transportation state and the hoisting state, realize efficient and safe hoisting, and reduce the cost.

[0102] In order to further improve the safety of the blade 1 during hoisting, the blade clamping unit 10 further comprises a bumper 1223, which is arranged at one end of the longitudinal side wall of the bottom support 12 away from the frame 11, but is not limited thereto.

[0103] The present disclosure improves the versatility of the blade clamping unit 10 by cooperating the pressure arm 13, the blade clamping block 14 and the bottom support 12, so as to adapt to different blades 1, thereby reducing the hoisting cost of the blade 1.

[0104] As an example, the blade clamping unit 10 provided by the present embodiment can be applied to a horizontal blade clamp, a full-rotation blade clamp, and a tailing clamp, but is not limited thereto.

[0105] In the description of the disclosure, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the disclosure.

[0106] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or a specific number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the disclosure, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0107] In the description of the disclosure, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, or it can be communicatively connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the disclosure can be understood according to the specific circumstances.

[0108] The features, structures or characteristics described in the disclosure can be combined in any suitable manner in one or more embodiments. In the above description, many specific details are provided to give a sufficient understanding of the embodiments of the disclosure. However, those skilled in the art will realize that the technical solutions of the disclosure can be practiced without one or more of the specific details, or other methods, components, materials, etc. can be used. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring the aspects of the disclosure.

Claims

1. A blade clamping unit, characterized in that, The blade clamping unit includes: Frame (11), The pressure arm (13) is connected to the frame (11). A blade clamping block (14) is connected to the pressure arm (13) for clamping onto the outer surface of the blade (1). A base support (12) is connected to the frame (11). The base support (12) is spaced below the pressure arm (13). The base support (12) includes a base seat (121), a base body (122), and a telescopic support member (123). The base seat (121) is connected to the frame (11). The base body (122) is movably connected above the base seat (121). The telescopic support member (123) is supported between the base seat (121) and the base body (122), allowing the base body (122) to swing relative to the base seat (121). The base body (122) includes a vertical plate (1221) and an elastic element (1222). The elastic element (1222) supports the blade (1). The vertical plate (1221) extends longitudinally downward from the elastic element (1222). The base (121) is provided with a receiving groove for accommodating the vertical plate (1221). The vertical plate (1221) is slidably disposed in the receiving groove along a first direction. The base (12) further includes a connector. The upright plate (1221) is provided with an upright plate connecting hole (1226). The groove wall of the receiving groove is provided with a groove wall hole (1227) that matches the upright plate connecting hole (1226). The connector is disposed in the upright plate connecting hole (1226) and the groove wall hole (1227). At least one of the upright plate connecting hole (1226) and the groove wall hole (1227) is an oblong hole, so that the upright plate (1221) can be slidably disposed in the receiving groove. The elastic element (1222) extends perpendicularly to the upright plate (1221). The upright plates (1221) are arranged in pairs, and the pair of upright plates (1221) are respectively supported at both ends of the extension direction of the elastic element (1222). The top of the upright plate (1221) is provided with an upright plate slot (1224). The elastic element (1222) is provided with a retaining rib (1225) that matches the upright plate slot (1224). The retaining rib (1225) is rotatably disposed in the upright plate slot (1224).

2. The blade clamping unit as described in claim 1, characterized in that, The end of the upright plate (1221) facing away from the elastic member (1222) forms a first arc along the extension direction of the receiving groove, and the bottom of the receiving groove forms a second arc along the extension direction of the receiving groove. The radius of curvature of the first arc is not greater than the radius of curvature of the second arc.

3. The blade clamping unit as described in claim 1 or 2, characterized in that, The pressure arm (13) includes a pressure arm seat (131) and a telescopic arm (132). The pressure arm seat (131) is rotatably connected to the frame (11). The telescopic arm (132) is movably connected to the pressure arm seat (131) and can extend or retract relative to the pressure arm seat (131) along the extension direction of the pressure arm seat (131). The blade clamp (14) is movably connected to the telescopic arm (132).

4. The blade clamping unit as described in claim 3, characterized in that, The blade clamp (14) includes a connecting seat (141) and a clamp unit. The connecting seat (141) is connected to the telescopic arm (132), and the clamp unit is rotatably connected to the connecting seat (141).

5. The blade clamping unit as described in claim 4, characterized in that, The blade clamping unit also includes a pressure arm drive (15), the two ends of which are hinged to the frame (11) and the pressure arm seat (131) respectively. The pressure arm drive (15) can drive the pressure arm seat (131) to rotate relative to the frame (11).

6. The blade clamping unit as described in claim 5, characterized in that, The clamping unit includes a clamping block body (144) and a clamping block seat (143). The clamping block seat (143) is rotatably connected to the connecting seat (141). The clamping block body (144) is connected to the side of the clamping block seat (143) facing the base (12), so that the clamping block body (144) is rotatably connected to the telescopic arm (132).

7. The blade clamping unit as described in claim 3, characterized in that, One of the telescopic arm (132) and the pressure arm seat (131) is provided with a groove extending along the extension direction of the pressure arm (13), and the other is provided with a slider that matches the groove. The slider is slidably disposed in the groove, so that the telescopic arm (132) can slide relative to the pressure arm seat (131).

8. The blade clamping unit as described in claim 4, characterized in that, The connecting seat (141) is slidably connected to the telescopic arm (132). One of the connecting seat (141) and the telescopic arm (132) is provided with a rolling support (145), which is disposed between the connecting seat (141) and the telescopic arm (132).

9. The blade clamping unit as described in claim 4, characterized in that, The blade clamp (14) also includes a cross shaft (142), the first shaft of the cross shaft (142) is rotatably connected to the connecting seat (141), and the clamp unit is rotatably connected to the second shaft of the cross shaft (142). The first shaft and the second shaft are arranged perpendicularly.

10. The blade clamping unit as described in claim 6, characterized in that, The blade clamping unit further includes an angle sensor (147), which is disposed on at least one of the base (12) and / or the blade clamping block (14).

11. The blade clamping unit as described in claim 10, characterized in that, The blade clamping unit also includes a controller and a pressure sensor. The pressure sensor is used to detect the pressure of the clamping block body (144) and / or the base support body (122). The controller can receive the angle information detected by the angle sensor (147) and the pressure information detected by the pressure sensor, and control the start and stop of the pressure arm drive (15) and / or the start and stop of the telescopic support (123) according to the angle information and the pressure information.

12. A blade lifting device, characterized in that, The blade lifting device includes a clamping main beam (20) and a blade clamping unit as described in any one of claims 1-11, wherein the blade clamping unit is connected to the clamping main beam (20).

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