Fan blade mounting and clamping device convenient to assemble

Abstract

The utility model discloses a fan blade installing and clamping device convenient to assemble. The fan blade installing and clamping device comprises a base and a clamping assembly. The base comprises a connecting base and limiting seats on the two sides. A mounting space for the clamping assembly is formed between the two limiting seats; the clamping assembly comprises a first clamping hand and a second clamping hand which are clamped on the two sides of the fan blade correspondingly. The first clamping hand and the second clamping hand are respectively arranged on the corresponding limiting seats through clamping seats; a connecting plate is arranged between the two clamping seats, and the connecting plate and / or the clamping seats are / is detachably mounted on the connecting base and / or the limiting seat through locking assemblies; through rapid assembly of the connecting plate and the clamping seat and rapid assembly of the connecting base and the connecting plate, the assembling efficiency of the clamping assembly and the base is remarkably improved, and compared with traditional fastening structures such as bolts and nuts, the application of the clamping type locking assembly and the lock catch type locking assembly reduces the precision requirement and reduces the cost. And higher assembly fault tolerance is achieved, and rapid assembly is achieved in more complex working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ocean engineering equipment, especially to a fan blade mounting and clamping device convenient to assemble. BACKGROUND

[0002] An offshore wind turbine is a device for converting ocean wind energy into electric energy, which is usually composed of fan blades, a nacelle, a tower and a foundation. The foundation is used to support the entire fan to ensure its stability, and the tower connects the foundation and the nacelle to support the nacelle and the fan blades. The nacelle is located at the top of the tower and contains a generator, a gearbox and a control system, which is responsible for converting wind energy into electric energy. The fan blades are fixed on the nacelle and are driven to rotate by wind energy, and the kinetic energy of the fan blades is converted into electric energy through a transmission device. With the rapid development of ocean new energy development, the range of offshore wind power development gradually expands from shallow nearshore to deep offshore.

[0003] The hoisting of offshore fan blades is one of the key links in the installation of the entire wind turbine. With the continuous increase in the single-machine capacity of wind turbine generators, the size of the blades of wind turbine generators also gradually increases. In wind power generation, blade clamping devices are needed to facilitate the installation and fixation of the blades. However, due to the large length and weight of the blades and the complexity of their shape, combined with the uncertainty of the offshore environment, the blades need to be placed and transported by specific blade support equipment before hoisting, and the blade hoisting clamping device needs to be replaced for hoisting operation, so that the hoisting operation of the blades can be carried out.

[0004] To solve the above problems, a self-adaptive integrated device technical solution is proposed in Chinese Patent Publication No. CN115215192A to solve the problem of the need for multiple specific tools for blade storage and assembly, and to realize the transportation, storage (or water transportation) and hoisting of blades with only one set of device. However, in this technical solution, the assembly of the upper and lower halves of the rotating drum and the profile plate and other components requires multiple steps of docking, adjustment and screwing nuts. Taking the lower half of the rotating drum as an example, when assembling the lower half of the rotating drum, the lower support frame, the front lower support plate and the front lower profile plate are installed. The front lower limit stud on the front lower profile plate is inserted through the front lower support plate and screwed into the corresponding mating nut. The front lower jacking bolt is screwed into the front lower support plate, and the jacking height of the front lower profile plate is adjusted through the front lower jacking bolt to make the position and angle of the front lower profile plate suitable for the thickness variation and shape of the blade gap, and then the mating nut is fixed. The steps are numerous and require multiple alignments. In addition, the alignment between the upper and lower halves of the rotating drum is difficult, and there is a lack of effective guiding structure, which affects the installation efficiency of the integrated device.

[0005] Therefore, further research and development are needed to solve the problems existing in the above-mentioned prior art. UTILITY MODEL CONTENTS

[0006] Therefore, in order to solve the above problems existing in the prior art, the utility model discloses a fan blade mounting and clamping device convenient to assemble.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A fan blade mounting and clamping device convenient to assemble is applied to the transportation or assembly operation of offshore fan blades to fix the blades, comprising a base and a clamping assembly mounted in the base, wherein the base comprises a connecting base and limiting seats mounted on both sides of the connecting base, an installation space of the clamping assembly is formed between the two limiting seats, the clamping assembly comprises first and second clamping hands clamped on both sides of the fan blade respectively, the first and second clamping hands are mounted on the corresponding limiting seats through clamping seats respectively, a connecting plate is arranged between the two clamping seats, and the connecting plate and / or clamping seat are detachably mounted on the connecting base and / or limiting seat through locking assemblies.

[0009] Further, the locking assembly comprises clamping locking pieces mounted on the connecting plate and locking driving mechanisms for driving the clamping locking pieces to open or close, limiting pieces are arranged on the connecting base, or the clamping locking pieces and locking driving mechanisms are arranged on the connecting base, and the limiting pieces are arranged on the connecting plate, the clamping locking pieces are clamped on the limiting pieces after being driven by the locking driving mechanisms to open, and are locked and fixed by closing, so that the installation of the connecting plate and the connecting base is realized.

[0010] Further, the locking driving mechanism comprises a locking seat and a locking slider movably arranged on the locking seat, the clamping locking piece comprises two clamping arms hinged on the locking seat, the two clamping arms are in transmission connection with the locking slider respectively, and can approach each other towards the limiting piece and clamp the limiting piece under the driving of the locking slider, or the two clamping arms are reversely opened away from the limiting piece in the direction, and the limiting piece is loosened.

[0011] Further, the limiting piece is a limiting rod, the two clamping arms can approach each other towards the limiting piece and clamp the limiting piece under the driving of the locking slider, the locking slider is located between the two clamping arms and rolls or slides in contact, the width between the two sides of the locking slider in contact with the two clamping arms gradually narrows in the direction of the limiting rod, and the locking seat is provided with elastic reset pieces connected with the locking slider and used for resetting the locking slider.

[0012] Further, the locking assembly comprises a locking band arranged on the clamping seat and a driving rod movable between the clamping seat and the limiting seat; the driving rod is arranged on one side of the locking band; the limiting seat is provided with a locking hook matched with the locking band; the locking hook can be close to the locking band and inserted into the locking band to lock the locking band.

[0013] Further, the limiting seat is concave and provided with a locking groove capable of accommodating the locking hook; a part of the driving rod and the locking band is inserted into the locking groove; the clamping seat is provided with two locking bands, and the driving rod is located between the two locking bands; the locking groove is rotatable or movable and provided with two locking hooks; the end of the driving rod is provided with a clamping limiting block for driving the two locking hooks to rotate or move away from each other to close to and insert into the locking band to lock the locking band; the clamping limiting block is located between the two locking hooks and rolls or moves to contact, and the width between the two sides of the clamping limiting block in contact with the two locking hooks gradually narrows in the direction of the limiting seat.

[0014] Further, the two side walls of the locking groove are respectively provided with a stop portion for limiting excessive rotation or movement of the locking hook; when the locking hook abuts against the stop portion, the locking hook is locked with the locking band; the driving rod can be driven by an oil cylinder or a gas cylinder or a gear rack or a gas type.

[0015] Further, the connecting base is respectively provided with a limiting seat mounting strip extending in the direction of the limiting seat; the limiting seat is respectively provided with a first limiting groove corresponding to the profile of the limiting seat mounting strip; and the limiting seat mounting strip is inserted and fixed in the first limiting groove.

[0016] The connecting plate is respectively provided with a clamping seat mounting strip extending in the direction of the clamping seat; the clamping seat is respectively provided with a second limiting groove corresponding to the profile of the clamping seat mounting strip; and the clamping seat mounting strip is inserted and fixed in the second limiting groove.

[0017] Further, the connecting plate is provided with a limiting protrusion extending in the direction of the connecting base; the connecting base is provided with a limiting blind hole matched with the limiting protrusion; or the connecting base is provided with the limiting protrusion extending in the direction of the connecting plate, and the connecting plate is provided with a limiting blind hole matched with the limiting protrusion; and the limiting protrusion is inserted in the limiting blind hole.

[0018] Further, one side of the clamping seat connected with the limiting seat is provided with a locking clamp plate for connecting with the limiting seat, the locking clamp plate is provided with a limiting strip, the clamping seat is provided with a clamping groove corresponding to the limiting strip; or, the clamping seat is provided with the limiting strip, and the locking clamp plate is provided with a clamping groove corresponding to the limiting strip; one side of the locking clamp plate close to the limiting seat is provided with a locking block, two locking blocks are clamped between the side of the limiting seat and the clamping seat, and the locking blocks and the clamping seat and the limiting seat are locked and fixed by fasteners respectively.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] 1) The utility model discloses a quick assembly of the connecting plate and the clamping seat, and the quick assembly of the connecting base and the connecting plate, which significantly improves the assembly efficiency of the clamping assembly and the base, and the application of the clamping type locking assembly and the lock type locking assembly can adapt to more complex working conditions, reduce the precision requirement, have higher assembly fault tolerance, avoid the loosening problem of the locking mode such as bolt and nut in the daily transportation or use of the clamping equipment due to vibration, external impact or long time use and temperature difference, and greatly improve the connection stability and anti-vibration performance.

[0021] In addition, the plug-in structure design of the connecting plate and the clamping seat, and the precise matching of the limiting seat mounting strip of the connecting base and the limiting groove of the connecting plate avoid the cumbersome alignment and adjustment in the traditional assembly process and reduce the error in the assembly process, the scheme realizes quick assembly, efficient locking and reliable connection, and provides guarantee for efficient hoisting and safe operation of the fan blade.

[0022] 2) The utility model discloses that the mounting strip of the clamping seat cooperates with the limiting groove on the connecting plate, avoids the cumbersome bolt fastening process, forms stable connection after plug-in, simplifies the assembly operation, the profile design of the limiting groove is accurately matched with the shape of the mounting strip, can ensure quick assembly even in the environment with large wind speed or obvious shaking, improves the adaptability to complex working conditions, the clamping seat and the connecting plate form close cooperation after plug-in, provide stable support for the clamping assembly, ensure that the clamping force can be efficiently transmitted, and improve the safety and efficiency of installation.

[0023] 3) The clamping locking assembly of this utility model adopts a clever structure of slider and clamping arm, which automatically realizes the opening and closing of the clamping arm. It does not require a complex external driving device and can complete the operation through structural mechanics design, which greatly simplifies the locking mechanism. The hook-type locking assembly adopts the cooperation of clamping limit block and rotating hook. The shape of the clamping limit block can ensure that the locking can smoothly enter the locking band to complete the locking action, which simplifies the locking steps and avoids the assembly problems caused by misalignment in the traditional method. Furthermore, it enables the base and each module of the clamping assembly to be quickly connected and firmly fixed, improving the overall assembly efficiency, and is especially suitable for the rapid assembly requirements in harsh environments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a wind turbine blade mounting and clamping device that is easy to assemble, according to a preferred embodiment of the present invention.

[0025] Figure 2 This is a partial cross-sectional view of a wind turbine blade mounting and clamping device for easier assembly, omitting the first and second clamps, as shown in the preferred embodiment of this utility model.

[0026] Figure 3 for Figure 2 Enlarged schematic diagram of the local structure at point B;

[0027] Figure 4 for Figure 2 Enlarged schematic diagram of the local structure at point C;

[0028] Figure 5 This is a partial exploded view of the wind turbine blade mounting and clamping device, which is designed for ease of assembly according to a preferred embodiment of the present invention and omits the first and second clamps.

[0029] Figure 6 for Figure 5 Enlarged schematic diagram of a local structure at point A;

[0030] Figure 7 This is a partial exploded view of the clamping seat of the wind turbine blade mounting clamping device, which is a preferred embodiment of the present invention and is easy to assemble.

[0031] In the picture:

[0032] 1. Base; 11. Connecting base; 111. Limiting component; 112. Limiting seat mounting strip; 113. Limiting blind hole; 12. Limiting seat; 121. Locking groove; 1211. Stopping part; 123. First limiting groove; 2. Clamping assembly; 21. First gripper; 22. Second gripper; 23. Clamping seat; 231. Second limiting groove; 232. Slot; 24. Connecting plate; 241. 242. Clamping seat mounting strip; 3. Limiting protrusion; 3. Locking assembly; 31. Clamping and locking component; 311. Clamping arm; 32. Locking drive mechanism; 321. Locking seat; 322. Locking slider; 323. Locking rod; 33. Locking band; 34. Drive rod; 35. Locking hook; 36. Clamping limit block; 4. Elastic reset component; 5. Locking clamping plate; 51. Limiting strip; 6. Locking block. Detailed Implementation

[0033] To facilitate understanding of this utility model, the technical solution and advantages of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific structure and features of this utility model are illustrated by way of example and should not constitute any limitation on this utility model. Furthermore, any of the technical features mentioned below (including implicit or disclosed features), as well as any technical features directly shown or implied in the figures, can be arbitrarily combined or deleted among these technical features to form other embodiments that may not be directly or indirectly mentioned in this utility model. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0034] In the description of this utility model, unless otherwise stated, all components used are conventional components in the prior art.

[0035] like Figures 1-7 As shown, this utility model provides a wind turbine blade mounting clamping device that is easy to assemble and is applied to the assembly operation of offshore wind turbine components. In this embodiment, the assembly operation of offshore wind turbine components includes, but is not limited to, the clamping, fixing or hoisting operation of components such as wind turbine towers, wind turbine blades, and wind turbine nacelles. This embodiment takes the assembly of wind turbine blades as an example, and is a device used to fix the blades during the hoisting process of wind turbine blades.

[0036] like Figure 1As shown, specifically, including the base 1 and the clamping assembly 2 mounted in the base 1; the base 1 includes a connecting base 11 and a limiting seat 12 mounted on both sides of the connecting base 11; the installation space of the clamping assembly 2 is formed between the two limiting seats 12; in this embodiment, the base is designed as a ring structure, and the clamping assembly 2 includes a first clamping hand 21 and a second clamping hand 22 respectively clamped on both sides of the fan blade; the first clamping hand 21 and the second clamping hand 22 are respectively installed on the corresponding limiting seat 12 through a clamping seat 23; a connecting plate 24 is arranged between the two clamping seats 23, and the connecting plate 24 and / or the clamping seat 23 are respectively detachably installed on the connecting base 11 and / or the limiting seat 12 through a locking assembly 3.

[0037] As shown in the Figure 2 locking assembly 3, the connecting base 11 is provided with a limiting piece 111; or the connecting base 11 is provided with the clamping locking piece 31 and the locking driving mechanism 32, and the connecting plate 24 is provided with the limiting piece 111; the locking driving mechanism 32 drives the clamping locking piece 31 to be clamped on the limiting piece 111 and closed and locked after being opened, so as to realize the installation of the connecting plate 24 and the connecting base 11. In this embodiment, the action of opening and closing the clamping locking piece by the locking driving mechanism not only makes the operation more convenient, but also reduces the dependence on manual operation and improves the assembly efficiency.

[0038] Further refinement, the locking driving mechanism 32 includes a locking seat 321 and a locking slider 322 movably arranged on the locking seat 321; the clamping locking piece 31 includes two clamping arms 311 hinged on the locking seat 321, the two clamping arms 311 are respectively in transmission connection with the locking slider 322, and under the extrusion drive of the locking slider 322, the two clamping arms 311 can respectively approach the limiting piece 111 and clamp the limiting piece 111, or the two clamping arms 311 are reversely opened away from the limiting piece 111 in the direction away from the limiting piece 111, and the limiting piece 111 is loosened. Through the transmission connection of the slider shape and the clamping arm, without additional complex driving components, the whole is more compact.

[0039] Preferably, the limiting member 111 is a limiting rod, and the two clamping arms 311 are driven by the locking slider 322 to approach each other and clamp the limiting rod 111; the locking slider 322 is located between the two clamping arms 311 and rolls or slides in contact, and the width between the two sides of the locking slider 322 in contact with the two clamping arms 311 gradually narrows in the direction of the limiting rod; the locking seat 321 is provided with an elastic reset member 4 connected with the locking slider 322 and used for resetting the locking slider 322.

[0040] In the embodiment, one end of the clamping arm close to the limiting rod is used for clamping the limiting rod, the other end away from the limiting rod is used for sliding cooperation with the locking slider, and the hinged position is located between the two ends, and the distance between the clamping arms gradually decreases from the hinged position to the end for sliding cooperation with the locking slider. A driving device such as a hydraulic device, a pneumatic cylinder or a motor is arranged to drive the two clamping arms to approach each other at the end for sliding cooperation with the locking slider, and the clamping arms are opened or closed by sliding cooperation on the two inclined sides of the locking slider. Specifically, when the end of the clamping arm in contact with the locking slider is located at the wider end of the locking slider, the clamping arm is in a closed state, and vice versa.

[0041] As shown in Figure 2 , 4 , in order to prevent the locking slider from rebounding and loosening the clamping arm, the locking drive mechanism 32 can also be provided with a locking rod 323 for pushing the locking slider, which ensures that the locking slider will not rebound and loosen when in the locking state.

[0042] In the embodiment, the locking slider is preferably designed in a trapezoidal structure with a gradually decreasing width in the direction of the limiting member, and the elastic reset member and the self-locking locking rod are designed to cooperate with each other, so that when the locking slider moves in the direction of the limiting member, the clamping arm clamps the limiting rod, and when unlocking is needed, the locking slider moves in the direction away from the limiting rod under the action of the elastic reset member.

[0043] As shown in Figures 2-4 , optionally, the locking assembly 3 includes a locking belt 33 arranged on the clamping seat 23 and a driving rod 34 movable between the clamping seat 23 and the limiting seat 12; the driving rod 34 is arranged on one side of the locking belt 33; the limiting seat 12 is provided with a locking hook 35 for hanging cooperation with the locking belt 33; the locking hook 35 can approach the locking belt 33 and extend into the locking belt 33 to lock the locking belt 33. In the embodiment, the end of the locking hook is embedded in the locking belt and fixed under the pushing action of the driving rod, and the three form a mechanical locking to avoid loosening of the connecting part due to external force or vibration. The locking belt of the embodiment is a locking belt with a certain deformation stiffness.

[0044] Further, the limiting seat 12 is internally recessed with a locking groove 121 capable of accommodating the locking hook 35, and a part of the driving rod 34 extends into the locking groove 121; the clamping seat 23 is provided with two locking bands 33, and the driving rod 34 is located between the two locking bands 33; the locking groove 121 is rotatably or movably provided with two locking hooks 35, and the end of the driving rod 34 is provided with a clamping limiting block 36 for driving the two locking hooks 35 to rotate or move away from each other to approach and extend into the locking band 33 to lock the locking band 33; the clamping limiting block 36 is located between the two locking hooks 35 and rolls or moves in contact, and the width between the two sides of the clamping limiting block 36 in contact with the two locking hooks 35 gradually narrows in the direction of the limiting seat 12. In this embodiment, the locking hook and the locking band are designed by pushing the limiting block, which realizes the automatic alignment and locking process, reduces the tedious operation of manual intervention such as multiple alignment and adjustment, greatly improves the assembly efficiency of the base and the clamping seat, reduces the assembly precision requirement, ensures the locking reliability without strict calibration of the locking hook, the locking band and the driving rod, and greatly reduces the installation complexity.

[0045] Preferably, the two side walls of the locking groove 121 are respectively provided with a stop portion 1211 for limiting excessive rotation or movement of the locking hook 35, and when the locking hook 35 abuts against the stop portion 1211, the locking hook 35 will pull the locking band 33 tight; in this embodiment, such design can reduce the setting of additional components, and the stop portion provides a self-locking effect, so that the locking hook cannot slide out of the locking band even in a stressed state, ensuring long-term stability of the connection; the driving rod 34 can be driven by an oil cylinder, a gas cylinder, a gear rack or a gas type.

[0046] As shown in Figures 5-7 Preferably, the connecting base 11 is provided with a limiting seat mounting strip 112 extending in the direction of the limiting seat 12 on both sides, and the limiting seat 12 is correspondingly provided with a first limiting groove 123 matching the profile of the limiting seat mounting strip 112; the limiting seat mounting strip 112 is inserted into the first limiting groove 123 and fixed;

[0047] The clamping seat installation strip 241 on the two sides of the connecting plate 24 extends towards the clamping seat 23 direction; The clamping seat 23 is respectively provided with a second limiting groove 231 corresponding to the contour of the clamping seat installation strip 241, and the clamping seat installation strip 241 is inserted and fixed in the second limiting groove 231. In this embodiment, the benefits of such design are that the installation strip of the connecting base and the connecting plate is inserted into the corresponding limiting groove of the limiting seat and the clamping seat, realizing accurate mechanical cooperation, which improves the assembly efficiency, reduces the installation time, ensures the stability of the component installation, and prevents structural problems caused by loosening or displacement. The plug-in structure can disperse the stress, enhance the overall load capacity, effectively prolong the service life, and when replacement or maintenance is needed, disassembly and reassembly are more convenient, further optimizing the operation experience and maintenance cost.

[0048] Preferably, the connecting plate is provided with a limiting protrusion 242 extending towards the connecting base direction; The connecting base is provided with a limiting blind hole 113 matched with the limiting protrusion; Or the connecting base is provided with the limiting protrusion extending towards the connecting plate direction, and the connecting plate is provided with a limiting blind hole matched with the limiting protrusion; The limiting protrusion is inserted into the limiting blind hole. The benefits of such design are that the connecting base can better support and fix the connecting plate, avoiding loosening or instability caused by external force during use. The cooperation design of the limiting protrusion and the limiting blind hole ensures accurate butt joint during installation, providing strong anti-vibration ability and stability. At the same time, this design can simplify the assembly process, improve production efficiency, and reduce failures caused by errors or improper installation.

[0049] Preferably, one side of the clamping seat 23 connected with the limiting seat 12 is provided with a locking clamp plate 5 for connecting with the limiting seat 12, the locking clamp plate 5 is provided with a limiting strip 51, and the clamping seat 23 is provided with a clamping groove 232 corresponding to the limiting strip 51; Or, the clamping seat 23 is provided with the limiting strip 51, and the locking clamp plate 5 is provided with a clamping groove 232 corresponding to the limiting strip 51; One side of the locking clamp plate 5 close to the limiting seat 12 is provided with a locking block 6, and two locking blocks 6 are clamped between the side of the limiting seat 12 and the clamping seat 23, and the locking block 6 is locked and fixed with the clamping seat 23 and the limiting seat 12 through fasteners.

[0050] In this embodiment, through the plug-in of the limiting strip and the clamping groove, and the cooperation of the locking block with the clamping seat and the limiting seat, the components can be quickly aligned during assembly, reducing the complexity of assembly and the requirement for high-precision alignment, and playing a guiding role during assembly, improving the stability during assembly, reducing the steps of artificial adjustment, reducing the error rate during assembly, enhancing the shear resistance of the connected components, and making the connection more firm and reliable.

[0051] The above implementation is only the preferred implementation of the present application, and cannot be used to limit the scope of the present application. For those skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wind turbine blade mounting clamp device for facilitating assembly, which is applied to the transportation or assembly operation of offshore wind turbine blades to fix the blades; characterized in that, The utility model provides a wind turbine blade clamping device, comprising a base and a clamping assembly mounted in the base; the base comprises a connecting base and limiting seats mounted on both sides of the connecting base; the mounting space of the clamping assembly is formed between the two limiting seats; the clamping assembly comprises first clamping hands and second clamping hands clamped on both sides of the wind turbine blade respectively; the first clamping hands and the second clamping hands are mounted on the corresponding limiting seats through clamping seats respectively; a connecting plate is arranged between the two clamping seats; the connecting plate and / or the clamping seat are detachably mounted on the connecting base and / or the limiting seat through a locking assembly; the locking assembly comprises clamping locking pieces mounted on the connecting plate and a locking driving mechanism for driving the clamping locking pieces to open or close; limiting pieces are arranged on the connecting base; or the clamping locking pieces and the locking driving mechanism are arranged on the connecting base, and the limiting pieces are arranged on the connecting plate; the locking driving mechanism drives the clamping locking pieces to open and clamp on the limiting pieces and close to be locked and fixed, so as to realize the mounting of the connecting plate and the connecting base.

2. The fan blade mounting clamp assembly of claim 1, wherein, the locking driving mechanism comprises a locking seat and a locking slider movably arranged on the locking seat; the clamping locking pieces comprise two clamping arms hinged on the locking seat; the two clamping arms are in transmission connection with the locking slider respectively and can approach each other towards the limiting pieces and clamp the limiting pieces under the driving of the locking slider; or the two clamping arms are reversely opened away from the limiting pieces in the direction away from the limiting pieces, and the limiting pieces are loosened.

3. The fan blade mounting clamp assembly of claim 2, wherein, the limiting pieces are limiting rods; the two clamping arms can approach each other towards the limiting pieces and clamp the limiting pieces under the driving of the locking slider; the locking slider is located between the two clamping arms and rolls or slides in contact; the width between the two sides of the locking slider in contact with the two clamping arms gradually narrows towards the limiting rods; the locking seat is provided with elastic reset pieces connected with the locking slider and used for resetting the locking slider.

4. The fan blade mounting clamp assembly of claim 1, wherein, the locking assembly comprises locking belts arranged on the clamping seats and a driving rod movable between the clamping seats and the limiting seats; the driving rod is arranged on one side of the locking belt; the limiting seat is provided with locking hooks in hanging cooperation with the locking belts; the locking hooks can approach the locking belts and extend into the locking belts to tighten the locking belts.

5. The fan blade mounting clamp assembly of claim 4, wherein, the limiting seat is concave and provided with locking grooves capable of accommodating the locking hooks; a part of the locking belts and the driving rod extends into the locking grooves; the clamping seat is provided with two locking belts; the driving rod is located between the two locking belts; the locking grooves are rotatably or movably provided with two locking hooks; the end of the driving rod is provided with clamping limiting blocks for driving the two locking hooks to rotate or move away from each other to approach and extend into the locking belts to lock the locking belts; the clamping limiting blocks are located between the two locking hooks and roll or move in contact; the width between the two sides of the clamping limiting blocks in contact with the two locking hooks gradually narrows towards the limiting seat.

6. The fan blade mounting clamp assembly of claim 5, wherein, The two side walls of the locking groove are respectively provided with a stop portion for limiting excessive rotation or movement of the locking hook, when the locking hook abuts against the stop portion, the locking hook locks the locking belt; the driving rod can be driven by an oil cylinder, a gas cylinder, a gear rack or a gas drive.

7. The fan blade mounting clamp assembly of claim 1, wherein, The connecting base is provided with a limiting seat mounting strip extending towards the limiting seat; the limiting seat is provided with a first limiting groove corresponding to the limiting seat mounting strip; the limiting seat mounting strip is inserted into the first limiting groove and fixed; The connecting plate is provided with a clamping seat mounting strip extending towards the clamping seat; the clamping seat is provided with a second limiting groove corresponding to the clamping seat mounting strip; the clamping seat mounting strip is inserted into the second limiting groove and fixed.

8. The fan blade mounting clamp assembly of claim 7, wherein, The connecting plate is provided with a limiting protrusion extending towards the connecting base; the connecting base is provided with a limiting blind hole corresponding to the limiting protrusion; or the connecting base is provided with the limiting protrusion extending towards the connecting plate, and the connecting plate is provided with a limiting blind hole corresponding to the limiting protrusion; the limiting protrusion is inserted into the limiting blind hole.

9. The fan blade mounting clamp assembly of claim 1 or 8, wherein, One side of the clamping seat connected with the limiting seat is provided with a locking clamp plate for connecting with the limiting seat; the locking clamp plate is provided with a limiting strip; the clamping seat is provided with a clamping groove corresponding to the limiting strip; or, the clamping seat is provided with the limiting strip, and the locking clamp plate is provided with a clamping groove corresponding to the limiting strip; one side of the locking clamp plate close to the limiting seat is provided with a locking block; two locking blocks are clamped between the side of the limiting seat and the clamping seat, and the locking blocks are locked and fixed with the clamping seat and the limiting seat by fasteners.

Images