Blade clamping unit and blade lifting appliance

Abstract

The invention provides a blade clamping unit and a blade lifting appliance, the blade clamping unit 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 so as to be clamped on the outer surface of a blade, the bottom support is connected to the frame, and the blade clamping block is connected to the pressing arm so as to be clamped on the outer surface of the blade. The pressing arms are arranged below the pressing arms at intervals, the bottom support comprises a bottom support base, a bottom support main body and a telescopic supporting piece, the bottom support base is connected to the frame, the bottom support main body is movably connected to the upper portion of the bottom support base, the telescopic supporting piece is supported between the bottom support base and the bottom support main body, and the bottom support main body is movably connected to the bottom support base. According to the blade clamping unit, the bottom support main body can swing relative to the bottom support seat, so that the bottom support main body is movably connected to the frame so as to adapt to different blades, and the universality of the blade clamping unit is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power generation, and in particular relates to a blade clamping unit and a blade hanger. Background Art

[0002] As the capacity of wind turbines continues to increase, the size of wind turbine blades also increases.

[0003] Blades are usually installed on the top of the tower using blade hangers. To improve on-site hoisting efficiency, current blade hangers mainly use customized clamps. However, customized clamps are expensive, and different blades require different clamps. In addition, there is currently a ball-jointed bottom bracket structure that can automatically adapt to the fit according to the blade angle, but the ball joint is unstable each time the blade is clamped. As the blade shakes during clamping, the on-site assembly time is extended, which increases the assembly cost of the wind turbine. Summary of the invention

[0004] The main purpose of the present disclosure is to provide a blade clamping unit and a blade hanger to improve the versatility of the blade clamping unit, reduce the blade assembly cost, and further reduce the assembly cost of the wind turbine generator set.

[0005] To achieve the above objectives, 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 includes a frame, a pressure arm, a blade clamping block and a base, wherein the pressure arm is connected to the frame, the blade clamping block is connected to the pressure arm for clamping on the outer surface of the blade, the base is connected to the frame, the pressure arm is spaced below the pressure arm, the base includes a base seat, a base body and a telescopic support, the base seat is connected to the frame, the base body is movably connected above the base seat, and the telescopic support is supported between the base seat and the base body so that the base body can swing relative to the base seat.

[0007] According to an exemplary embodiment of the present disclosure, the base support body includes a vertical plate and an elastic member, the elastic member is used to support the blade, the vertical plate extends longitudinally downward from the elastic member, the base support seat is provided with a receiving groove for accommodating the vertical plate, and the vertical plate is slidably arranged in the receiving groove along a first direction.

[0008] Optionally, the base support also includes a connecting piece, the vertical plate is provided with a vertical plate connecting hole, the groove wall of the accommodating groove is provided with a groove wall hole matching the vertical plate connecting hole, the connecting piece is provided in the vertical plate connecting hole and the groove wall hole, and at least one of the vertical plate connecting hole and the groove wall hole is provided with a waist-shaped hole extending along the first direction, so that the vertical plate can be slidably disposed in the accommodating groove.

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

[0010] Further, the elastic member extends along the second direction, the vertical plates are arranged in pairs, and a pair of the vertical plates are respectively supported at both ends of the extension direction of the elastic member, a vertical plate slot is provided at the top of the vertical plate, the elastic member is provided with a clamp matching the vertical plate slot, the clamp is rotatably arranged in the vertical plate slot, and the second direction is perpendicular to the first direction.

[0011] According to another exemplary embodiment of the present disclosure, the pressure arm includes a pressure arm seat and a telescopic arm, the pressure arm seat is rotatably connected to the frame, the telescopic arm is movably connected to the pressure arm seat and can be extended or retracted relative to the pressure arm seat along the extension direction of the pressure arm seat, and the blade clamp is movably connected to the telescopic arm.

[0012] Optionally, the blade clamp includes a connecting seat and a clamp unit, the connecting seat is connected to the telescopic arm, and the clamp unit is rotatably connected to the connecting seat.

[0013] Specifically, the blade clamping unit further comprises a pressure arm driving member, both ends of which are hinged to the frame and the pressure arm seat respectively, and the pressure arm driving member can drive the pressure arm seat to rotate relative to the frame.

[0014] Furthermore, the clamping block unit includes a clamping block body and a clamping block seat, the clamping block seat is rotatably connected to the connecting seat, and the clamping block body is connected to a side of the clamping block seat facing the base, so that the clamping block body is rotatably connected to the telescopic arm.

[0015] According to another exemplary embodiment of the present disclosure, one of the telescopic arm and the pressure arm seat is provided with a slide groove extending along the extension direction of the pressure arm, and the other is provided with a slider matching the slide groove, and the slider is slidably arranged in the slide groove, so that the telescopic arm can slide relative to the pressure arm seat.

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

[0017] Specifically, the blade clamp block further includes a cross shaft, a first axis of the cross shaft is rotatably connected to the connecting seat, the clamp block unit is rotatably connected to a second axis of the cross shaft, and the first axis is vertically arranged to the second axis.

[0018] Furthermore, the blade clamping unit further comprises an angle sensor, and the angle sensor is arranged on at least one of the base and / or the blade clamping block.

[0019] According to another exemplary embodiment of the present disclosure, the blade clamping unit further includes a controller and a pressure sensor, wherein the pressure sensor is used to detect the pressure of the clamping block body and / or the base support body, and the controller is capable of receiving angle information detected by the angle sensor and pressure information detected by the pressure sensor, and controlling 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 blade hanger is provided, the blade hanger comprising a fixture main beam and a blade clamping unit as described above, wherein the blade clamping unit is connected to the fixture main beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A structural diagram of a blade hanger provided for an exemplary embodiment of the present disclosure.

[0023] Figure 2 for Figure 1 Side view of the mid-blade spreader.

[0024] Figure 3 for Figure 1 Structural diagram of the middle blade clamping unit.

[0025] Figure 4 for Figure 3 Exploded diagram of the local structure of the medium voltage arm.

[0026] Figure 5 for Figure 3 Exploded view of the local structure of the midsole support.

[0027] Figure 6 for Figure 3 Enlarged view of the midsole body.

[0028] Figure 7 for Figure 6 Diagram of the first combined state of the middle clamping rib and the vertical plate slot.

[0029] Figure 8 for Figure 6 Diagram of the second combined state of the middle clamping rib and the vertical plate slot.

[0030] Fig. 9 for Figure 6 Diagram of the third combined state of the middle card rib and the vertical plate slot.

[0031] Description of reference numerals:

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

[0033] 11. Frame; 12. Bottom bracket;

[0034] 13. Pressing arm; 14. Blade clamping block;

[0035] 15. Pressing arm driving part;

[0036] 20. Fixture main beam; 30. Suspension belt;

[0037] 40. hanging beam; 41. cross beam;

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

[0039] 121. bottom bracket seat; 122. bottom bracket body;

[0040] 123. Telescopic support member; 131. Pressing arm seat;

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

[0042] 142. Cross shaft; 143. Clamping block seat;

[0043] 144. Clamp 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 board slot;

[0047] 1225, clamping rib; 1226, vertical plate connection hole;

[0048] 1227. Groove wall hole. DETAILED DESCRIPTION

[0049] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0050] The present disclosure provides an auxiliary installation tool for a wind turbine generator set. Specifically, the auxiliary installation tool may be a blade hanger for installing a blade on the top of a tower.

[0051] Specifically, the installation of blades can roughly include two methods. Method 1 is to pre-install the blades on the hub to form an impeller with the hub, and then use a blade hoist to lift the impeller to install the impeller on the top of the tower; Method 2 is to pre-install the hub on the top of the tower, and then use a blade hoist to lift multiple blades separately and install them on the hub.

[0052] Reference Figure 1 The present disclosure provides a blade hanger, which includes a fixture main beam 20 and a blade clamping unit 10 connected to both ends of the fixture main beam 20. The blade clamping unit 10 is mainly used to clamp the blade to prevent the blade 1 from being separated from the blade hanger. The fixture main beam 20 is mainly used to bear the weight of the blade and the weight of the blade clamping unit 10.

[0053] As an example, the blade hanger in this embodiment further includes a sling 30 and a hanging beam 40, and the fixture main beam 20 can be connected to the hanging beam 40 through the sling 30, but the present invention is not limited thereto. The hanging beam 40 is used to connect with a large lifting tool such as a crane, that is, the blade hanger provided by the present disclosure can be used in conjunction with a large lifting tool.

[0054] In order to facilitate the adjustment and balance of the blade hanger, the hanging beam 40 also includes a crossbeam 41, a longitudinal beam 42, and a telescopic member 43 connected between the crossbeam 41 and the longitudinal beam 42. The crossbeam 41 is arranged roughly parallel to the fixture main beam 20, and the bottom end of the longitudinal beam 42 is rotatably connected to the crossbeam 41, and the top end of the longitudinal beam 42 can be used to connect large hangers such as cranes. The two ends of the telescopic member 43 are respectively hinged on the crossbeam 41 and the longitudinal beam 42 to adjust the angle between the crossbeam 41 and the longitudinal beam 42, thereby adjusting the angle between the fixture main beam 20 and the horizontal plane, for example but not limited to, it can be used for axe correction or adjustment of a large turning angle of the unit. As an example, the telescopic member 43 can be a telescopic cylinder, or a screw assembly, but it is not limited to this. In this embodiment, the telescopic member 43 includes a hydraulic cylinder as an example for explanation, but it is not limited to this. It can be understood that the telescopic member 43 can also be a pneumatic cylinder.

[0055] In order to facilitate adjustment of the angle between the fixture main beam 20 and the horizontal plane, the slings 30 are divided into two groups, and the two groups of slings 30 are respectively connected to the two ends of the beam 41, so as to be respectively connected to the two ends of the fixture main beam 20, but not limited thereto.

[0056] Continue to refer to Figure 1 The blade hanger provided by the present invention includes a pair of blade clamping units 10, which are respectively used to clamp the root and tip of the blade to keep the blade balanced during the lifting process and prevent the blade 1 from accidentally detaching from the blade hanger, thereby improving the reliability of the blade hanger.

[0057] Reference Figures 1 to 6 Specifically, the blade clamping unit 10 includes a frame 11, a base 12, a pressure arm 13 and a blade clamping block 14, wherein the base 12 and the pressure arm 13 are relatively arranged on the frame 11 to clamp the upper surface and the lower surface of the blade respectively.

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

[0059] The pressure arm 13 includes a pressure arm seat 131, and the pressure arm seat 131 is rotatably connected to the frame 11, so that the pressure arm 13 can be rotatably connected to the frame 11. As an example, one end of the pressure arm seat 131 is rotatably connected to the frame 11, and the other end of the pressure arm seat 131 can be close to the base 12 or away from the base 12. When the other end of the pressure arm seat 131 swings in a direction away from the base 12, the space between the pressure arm 13 and the base 12 increases to facilitate the placement of the blade 1 in the space. When the blade 1 is placed in the space, the other end of the pressure arm seat 131 can swing toward the base 12 to reduce the space between the pressure arm 13 and the base 12 until the pressure arm 13 and the base 12 are firmly attached to the outer surface of the blade 1, respectively, so that the blade clamping unit 10 is clamped on the blade 1.

[0060] In this embodiment, the pressure arm seat 131 is rotatably connected to the frame 11, and the other end of the pressure arm seat 131 can swing close to the base 12 or swing away from the base 12, so that the space between the pressure arm 13 and the base 12 can be adjusted, thereby realizing the function of clamping the blade 1 or releasing the blade 1.

[0061] Continue to refer to Figures 1 to 3 As an example, the blade clamping unit 10 also includes a pressure arm driving member 15, both ends of which are hinged to the frame 11 and the pressure arm seat 131 respectively, and the pressure arm driving member 15 can drive the pressure arm seat 131 to rotate relative to the frame 11.

[0062] For the convenience of description, the present embodiment is described by taking the pressure arm driving member 15 as a telescopic member, for example but not limited to, the pressure arm driving member 15 is a hydraulic cylinder, but not limited to this. Specifically, one end of the pressure arm driving member 15 is hinged on the frame 11, and the other end is hinged on the pressure arm seat 131, so that the pressure arm seat 131 can swing relative to the frame 11 through the telescopic movement of the pressure arm driving member 15, so that the pressure arm seat 131 can swing close to the bottom bracket 12 or swing away from the bottom bracket 12, but not limited to this.

[0063] Further, refer to Figure 3 and Figure 4 The pressure arm 13 also includes a telescopic arm 132, and the blade clamp 14 is connected to the telescopic arm 132. The blade clamp 14 has a fitting surface that fits the surface of the blade 1, so that the blade clamp 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 thereof is adjustable, and the blade clamping block 14 is driven to move relative to the frame 11, so as to adapt to different blades 1. In this embodiment, the telescopic arm 132 is 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 thereof is adjustable, thereby improving the versatility of the blade clamping unit 10, so as to be able 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 slide groove extending along the extension direction of the pressure arm 13, and the other is provided with a slider matching the slide groove, and the slider is slidably provided in the slide groove, so that the telescopic arm 132 can slide relative to the pressure arm seat 131. In this embodiment, the slider is slidably provided in the slide groove, and the slide groove has a guiding effect on the slider, thereby improving the reliability of the movement of the slider, and the slider and the slide groove are respectively provided 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, in this embodiment, the slider is arranged on the telescopic arm 132, and the slide groove is arranged on the pressure arm seat 131. For example but not limited to, the slider is arranged on both sides of the width direction of the telescopic arm 132 and extends along the extension direction of the pressure arm 13, and the slide groove and the slider are arranged in parallel.

[0067] Further, in order to drive the telescopic arm 132 to slide relative to the pressure arm seat 131, the pressure arm 13 may also include a sliding arm driving member, the two ends of which are respectively connected to the telescopic arm 132 and the pressure arm seat 131. As an example, the sliding arm driving member may be a telescopic member, for example but not limited to, the telescopic member extends substantially along the extension direction of the pressure arm 13, so as to drive the telescopic arm 132 to slide relative to the pressure arm seat 131 through the extension and contraction of the telescopic member. Optionally, the telescopic member may be a hydraulic cylinder, but is not limited thereto.

[0068] In order to further improve the reliability of the blade clamping unit 10, the connecting seat 141 is slidably connected to the telescopic arm 132, and one of the connecting seat 141 and the telescopic arm 132 is provided with a rolling support 145, and the rolling support 145 is provided between the connecting seat 141 and the telescopic arm 132. In this embodiment, the telescopic arm 132 is slidably connected relative to the pressure arm seat 131, so that the length of the pressure arm 13 is adjustable to initially adapt to different blades 1, thereby improving the versatility 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 pressure arm 13 is roughly matched with the blade 1, the connecting seat 141 is further slid relative to the telescopic arm 132 to achieve a 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 invention discloses that the telescopic arm 132 is slidably connected relative to the pressure arm seat 131, so that the length of the pressure arm 13 is adjustable, and the connecting seat 141 is slidably connected to the telescopic arm 132, that is, the telescopic arm 132 is slidable and the connecting seat 141 is slidable, and the cooperation of the two can realize the precise positioning of the clamping unit, improve the moving accuracy of the clamping unit, and thus improve the reliability of the blade clamping unit 10.

[0070] Furthermore, in this embodiment, a rolling support 145 is provided through one of the connecting seat 141 and the telescopic arm 132. The rolling support 145 is provided between the connecting seat 141 and the telescopic arm 132, that is, the rolling support 145 is provided on the side of the connecting seat 141 away from the clamping unit. When the clamping unit is fitted with the blade 1, the rolling support 145 can provide the connecting seat 141 with a supporting force roughly along the normal direction of the outer surface of the blade 1, thereby avoiding deformation of the clamping unit, thereby improving the fitting reliability between the clamping unit and the blade 1.

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

[0072] Continue to refer to Figure 4In this embodiment, 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, so that the clamp unit can be rotatable relative to the connecting seat 141, so that it can fit with the outer surface of the blade 1, further improving the versatility of the blade clamping unit 10.

[0073] As an example, the clamping block unit in this embodiment includes a clamping block body 144 and a clamping block seat 143, wherein the clamping block seat 143 is rotatably connected to the connecting seat 141, and the clamping block body 144 is fixed on the clamping block seat 143. For example, but not limited to, the clamping block body 144 is connected to the side of the connecting seat 141 facing the base 12, so that the clamping block body 144 can be rotatable relative to the connecting seat 141 together with the clamping block seat 143, so that it can fit with the outer surface of the blade 1, thereby further improving the versatility of the blade clamping unit 10.

[0074] Furthermore, the blade clamp 14 also includes a cross shaft 142, a first axis of the cross shaft 142 is rotatably connected to the connecting seat 141, so that the cross shaft 142 can rotate around the first axis relative to the connecting seat 141, and the clamp unit is rotatably connected to the second axis of the cross shaft 142, so that the clamp unit can rotate around the second axis relative to the cross shaft 142, wherein the first axis is vertically arranged to the second axis, so that the clamp unit rotates relative to the connecting seat 141 through the cross shaft 142, so that the clamp unit can rotate flexibly within a larger range, thereby adapting to the outer surfaces of different blades 1, or adapting to different clamping parts of the same blade 1, and the blade clamp 14 can be firmly clamped on the outer surface of the blade 1, thereby improving the versatility and reliability of the blade clamping unit 10.

[0075] As an example, in this embodiment, a force sensor is provided on the cross shaft 142 to monitor the magnitude of the clamping force acting on the cross shaft 142, but the present invention is not limited thereto. Optionally, the cross shaft 142 in this embodiment is a cross universal joint, which has the function of a pin sensor to monitor the magnitude of the clamping force acting on the cross universal joint, and also has the function of a pin to achieve the connection between the clamp unit and the connecting seat 141.

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

[0077] Continue to refer to Figure 4The blade clamp 14 also includes an elastic support 146, which is fixed to the circumference of the clamp seat 143 and an elastic member is provided at one end of the elastic support 146 facing the clamp body 144. The elastic member is supported on the clamp body 144. When the blade clamping unit 10 is clamped on the blade 1, the elastic support 146 is used to provide a buffering effect after clamping the blade 1 to avoid damage to the blade 1, thereby improving the reliability of the blade clamping unit 10.

[0078] As an example, the blade clamp 14 further includes an angle sensor 147, which is disposed on the clamp body 144, for example but not limited to, the angle sensor 147 is disposed on the circumferential outer side wall of the clamp body 144. Optionally, the angle sensor 147 may be a horizontal inclinometer for testing the angle between the clamp body 144 and the horizontal plane.

[0079] Reference Figure 5 In this embodiment, the base 12 is spaced below the pressing arm 13 to form an accommodating space for accommodating the blade 1 between the pressing arm 13 and the base 12 .

[0080] In order to improve the versatility of the blade clamping unit, the base 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. For example but not limited to, the base seat 121 is connected to the lower side wall of the frame 11. The base body 122 is movably connected to the base seat 121. For example but not limited to, the base body 122 is movably connected to the top of the base seat 121. The telescopic support member 123 is supported between the base seat 121 and the base body 122, so that the base body 122 can swing relative to the base seat 121, that is, the base body 122 and the telescopic support member 123 are swingably connected, so that the base body 122 is movably connected to the frame 11, so as to be able to adapt to different blades 1, thereby further improving the versatility of the blade clamping unit 10.

[0081] In this embodiment, the telescopic support member 123 can withstand the gravity of the base body 122 and the gravity of the blade 1, and the length of the telescopic support member 123 in its extension direction is adjustable, so that the position of the connection point between the base body 122 and the telescopic support member 123 is adjustable, that is, the position of the swing axis of the base body 122 is adjustable, thereby further improving the versatility of the base 12 so as to better adapt to different blades 1.

[0082] As an example, the telescopic support member 123 includes a telescopic cylinder or a lead screw assembly, but is not limited thereto. For ease of description, this embodiment is described by taking the telescopic support member 123 including a telescopic cylinder as an example. Optionally, in this embodiment, the telescopic support member 123 includes a hydraulic cylinder, but is not limited thereto.

[0083] In this embodiment, in order to prevent the bottom bracket body 122 from being stuck in movement, the two ends of the telescopic support member 123 are respectively hinged on the bottom bracket seat 121 and the bottom bracket body 122, that is, the bottom bracket body 122 and the telescopic support member 123 are connected by a pin shaft, and the bottom bracket body 122 swings relative to the bottom bracket seat 121 around the pin shaft to adapt to different blades 1. Furthermore, the length of the telescopic support member 123 in its extension direction is adjustable, that is, the position of the pin shaft is adjustable, which further improves the versatility of the bottom bracket 12 so that it can better adapt to different blades 1.

[0084] Optionally, a pressure sensor may be further provided on the telescopic support member 123 to measure the pressure acting on the telescopic support member 123. In this embodiment, the telescopic support member 123 is a pair, and the pair of telescopic support members 123 are respectively arranged at different positions of the bottom support body 122, and the pins of the pair of telescopic support members 123 are coaxially arranged. Through the pressure sensor on the telescopic support member 123, it is possible to measure whether the pressure acting on different telescopic support members 123 is the same, so as to determine whether the telescopic support member 123 is extended or shortened according to the pressure value.

[0085] Continuing to refer to the drawings, in this embodiment, the bottom support body 122 includes a vertical plate 1221 and an elastic member 1222, the elastic member 1222 is used to support 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, and the bottom support seat 121 is provided with a receiving groove for accommodating the vertical plate 1221, and the vertical plate 1221 is slidably arranged in the receiving groove along a first direction.

[0086] In this embodiment, a receiving groove is provided along the first direction through the base support 121, so that the vertical plate 1221 can be slidably disposed in the receiving groove, and the receiving groove is used to guide the sliding of the vertical plate 1221, thereby improving the reliability of the movement of the vertical plate 1221, thereby improving the reliability of the base support 12.

[0087] In order to further improve the reliability of the use of the base 12 and prevent the base body 122 and the base seat 121 from accidentally detaching, the base 12 also includes a connecting piece (not shown in the figure), and a vertical plate connecting hole 1226 is provided on the vertical plate 1221, and a groove wall of the accommodating groove is provided with a groove wall hole 1227 matching the vertical plate connecting hole 1226, and the connecting piece is provided 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 provided as a waist-shaped hole extending along the first direction, so that the vertical plate 1221 can be slidably disposed in the accommodating groove.

[0088] In this embodiment, the bottom bracket body 122 and the bottom bracket seat 121 are connected together by a connecting member to prevent the bottom bracket body 122 and the bottom bracket seat 121 from accidentally detaching, thereby improving the reliability of the bottom bracket 12. As an example, the connecting member can be a pin or a bolt, but is not limited to this. Further, at least one of the vertical plate connecting hole 1226 and the groove wall hole 1227 is set as a waist-shaped hole extending along the first direction, and the connecting member can slide in the waist-shaped hole, so that the bottom bracket body 122 can slide relative to the bottom bracket seat 121 along the first direction, thereby improving the versatility of the bottom bracket 12.

[0089] Reference Figure 5 For the convenience of description, this embodiment is described by taking the vertical plate connecting hole 1226 and the groove wall hole 1227 as waist-shaped holes extending along the first direction as an example, but the present invention is not limited to this.

[0090] In this embodiment, the telescopic support member 123 is used as a sliding drive member of the vertical plate 1221, so as to drive the bottom support body 122 to slide relative to the bottom support seat 121 along the first direction. As an example, the telescopic support member 123 is arranged at an angle, so as to support the gravity of the bottom support body 122 and drive the bottom support body 122 to slide relative to the bottom support seat 121 along the first direction. Optionally, the angle between the extension direction of the telescopic support member 123 and the extension direction of the bottom support seat 121 is in the range of 30°-60°, for example but not limited to, the angle can be 45°, but not limited thereto.

[0091] Continue to refer to Figure 5 The elastic member 1222 extends substantially along the extension direction of the fixture main beam 20, and the first direction is perpendicular to the extension direction of the fixture main beam 20. In this embodiment, the first direction is a horizontal direction perpendicular to the extension direction of the fixture main beam 20, but is not limited thereto. In this embodiment, the elastic member 1222 includes a rubber member to avoid scratching the blade 1.

[0092] In order to further improve the versatility of the base 12, the end of the vertical plate 1221 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, and the curvature radius of the first arc is not greater than the curvature radius of the second arc.

[0093] As an example, the bottom support seat 121 includes a bottom support plate, each plate 1221 corresponds to a pair of bottom support plates, the pair of bottom support plates are parallel and spaced apart along the extension direction of the elastic member 1222, and the receiving groove is arranged between the pair of bottom support plates, that is, the pair of bottom support plates form a double-layer web structure, each bottom support plate extends along the first direction, so that the receiving groove extends along the first direction, and the receiving groove forms a double-layer web hollow structure.

[0094] The base bracket 12 provided by the present disclosure swings relative to the base bracket seat 121 with the connection point between the telescopic support member 123 and the base bracket body 122 as the rotation axis. Under the drive of the telescopic support member 123, the vertical plate 1221 can contact different parts of the bottom of the receiving groove to adapt to different blades 1. Furthermore, the end of the vertical plate 1221 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 curvature radius of the first arc is not greater than the curvature radius of the second arc, which further improves the versatility of the base bracket 12.

[0095] Reference Figures 6 to 9 In order to further improve the reliability of the base 12, the elastic member 1222 is swingably connected to the vertical plate 1221 so as to better fit the outer surface of the blade 1. The vertical plate 1221 is arranged at both ends of the elastic member 1222 to support the two ends of the elastic member 1222, but not limited to this.

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

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

[0098] In order to accurately measure the angle between the blade 1 and the horizontal plane, an angle sensor 147 is provided on the base 12. As an example, the angle sensor 147 can be a horizontal inclinometer for testing the angle between the base 12 and the horizontal plane. Optionally, a plurality of angle sensors 147 are provided along the circumference of the base body 122 (not shown) for measuring the angle between the base body 122 and the horizontal plane. Considering that the base body 122 is roughly parallel to the surface of the blade, the inclination angle of the surface of the blade can be obtained.

[0099] Furthermore, the blade clamping unit 10 also includes a controller and a pressure sensor, the pressure sensor is used to detect the pressure of the clamp block body 144 and / or the base 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.

[0100] The blade clamping unit 10 provided by the present disclosure can extend or retract 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 its extension direction is adjustable, driving the blade clamping block 14 to move relative to the frame 11, thereby adapting to different blades 1, and improving the versatility of the blade clamping unit 10. Furthermore, in this 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, so that the clamping block unit can be adjusted with the position of the web and the main beam of the blade 1, thereby improving the versatility of the blade clamping unit 10.

[0101] Furthermore, the base support 12 can achieve fine adjustment after the blade 1 is clamped. The transport axis angle of the blade 1 during transportation is generally not greater than 2 degrees, so the adjustment structure of the base support 12 can accurately achieve this function. Furthermore, angle sensors 147 are respectively set on the base support body 122 and the clamp block body 144 to measure the angle between the base support body 122 and the clamp block body 144 in the horizontal plane, so as to obtain the inclination angle of the pressure surface and the suction surface of the blade. The controller determines the blade axis angle according to the measured angle and the clamping position, and controls the posture of the clamp main beam, so as to accurately achieve seamless conversion of the blade axis angle between the transportation state and the hoisting state, realize efficient and safe hoisting, and reduce costs at the same time.

[0102] In order to further improve the safety of the blade 1 hoisting process, the blade clamping unit 10 also includes an anti-collision strip 1223. As an example, the anti-collision strip 1223 is arranged at one end of the base 12 away from the longitudinal side wall of the frame 11, but not limited to this.

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

[0104] As an example, the blade clamping unit 10 provided in this embodiment can be applicable to a horizontal blade clamp, a fully rotating blade clamp, or a tail clamp, but is not limited thereto.

[0105] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0106] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0107] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0108] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. A blade clamping unit, characterized in that: The blade clamping unit (10) comprises: Frame (11), A pressing arm (13) connected to the frame (11), The blade clamp (14) is connected to the pressure arm (13) and is used for clamping on the outer surface of the blade (1). A base support (12) is connected to the frame (11); the pressure arm (13) is spaced apart below the pressure arm (13); the base support (12) comprises a base support seat (121), a base support body (122) and a telescopic support member (123); the base support seat (121) is connected to the frame (11); the base support body (122) is movably connected above the base support seat (121); the telescopic support member (123) is supported between the base support seat (121) and the base support body (122), so that the base support body (122) can swing relative to the base support seat (121).

2. The blade clamping unit according to claim 1, characterized in that: The base support body (122) comprises a vertical plate (1221) and an elastic member (1222), wherein the elastic member (1222) is used to support the blade (1), the vertical plate (1221) extends longitudinally downward from the elastic member (1222), and the base support seat (121) is provided with a receiving groove for receiving the vertical plate (1221), and the vertical plate (1221) is slidably arranged in the receiving groove along a first direction.

3. The blade clamping unit according to claim 2, characterized in that: The base bracket (12) further comprises a connecting piece, the vertical plate (1221) is provided with a vertical plate connecting hole (1226), the groove wall of the accommodating groove is provided with a groove wall hole (1227) matching the vertical plate connecting hole (1226), the connecting piece is arranged in the vertical plate connecting hole (1226) and the groove wall hole (1227), at least one of the vertical plate connecting hole (1226) and the groove wall hole (1227) is provided with a waist-shaped hole extending along a first direction, so that the vertical plate (1221) can be slidably arranged in the accommodating groove.

4. The blade clamping unit according to claim 2, characterized in that: One end of the vertical 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, and the curvature radius of the first arc is not greater than the curvature radius of the second arc.

5. The blade clamping unit according to claim 2, characterized in that: The elastic member (1222) extends along the second direction, the vertical plates (1221) are arranged in pairs, and a pair of the vertical plates (1221) are respectively supported at two ends of the extension direction of the elastic member (1222), a vertical plate slot (1224) is arranged at the top of the vertical plate (1221), the elastic member (1222) is provided with a clamping rib (1225) matching the vertical plate slot (1224), and the clamping rib (1225) is rotatably arranged in the vertical plate slot (1224), and the second direction is perpendicular to the first direction.

6. The blade clamping unit according to any one of claims 1 to 5, characterized in that: The pressure arm (13) comprises 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 be extended or retracted relative to the pressure arm seat (131) along the extension direction of the pressure arm seat (131); and the blade clamp (14) is movably connected to the telescopic arm (132).

7. The blade clamping unit according to claim 6, characterized in that: The blade clamp (14) comprises a connecting seat (141) and a clamp unit, wherein the connecting seat (141) is connected to the telescopic arm (132), and the clamp unit is rotatably connected to the connecting seat (141).

8. The blade clamping unit according to claim 6, characterized in that: The blade clamping unit (10) further comprises a pressure arm driving component (15), the two ends of which are respectively hinged to the frame (11) and the pressure arm seat (131), and the pressure arm driving component (15) is capable of driving the pressure arm seat (131) to rotate relative to the frame (11).

9. The blade clamping unit according to claim 7, characterized in that: The clamping block unit comprises a clamping block body (144) and a clamping block seat (143), wherein the clamping block seat (143) is rotatably connected to the connecting seat (141), and the clamping block body (144) is connected to a 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).

10. The blade clamping unit according to claim 6, characterized in that: One of the telescopic arm (132) and the pressure arm seat (131) is provided with a slide groove extending along the extension direction of the pressure arm (13), and the other is provided with a slider matching the slide groove, and the slider is slidably arranged in the slide groove, so that the telescopic arm (132) can slide relative to the pressure arm seat (131).

11. The blade clamping unit according to claim 7, 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); and the rolling support (145) is provided between the connecting seat (141) and the telescopic arm (132).

12. The blade clamping unit according to claim 7, characterized in that: The blade clamp (14) further comprises a cross shaft (142), a first axis of the cross shaft (142) being rotatably connected to the connecting seat (141), and the clamp unit being rotatably connected to a second axis of the cross shaft (142), wherein the first axis and the second axis are arranged perpendicularly.

13. The blade clamping unit according to claim 1, characterized in that: The blade clamping unit (10) further comprises an angle sensor (147), wherein the angle sensor (147) is arranged on at least one of the base (12) and / or the blade clamping block (14).

14. The blade clamping unit according to claim 13, characterized in that: The blade clamping unit (10) also includes a controller and a pressure sensor, wherein the pressure sensor is used to detect the pressure of the clamping block body (144) and / or the base body (122), and the controller is capable of receiving the angle information detected by the angle sensor (147) and the pressure information detected by the pressure sensor, and controlling the start and stop of the pressure arm driving member (15) and / or the start and stop of the telescopic support member (123) according to the angle information and the pressure information.

15. A blade hanger, characterized in that: The blade hanger comprises a fixture main beam (20) and a blade clamping unit according to any one of claims 1 to 14, wherein the blade clamping unit (10) is connected to the fixture main beam (20).

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