Pressing plate adjusting structure of wind power blade lifting appliance

Abstract

The utility model relates to a pressing plate adjusting structure of a wind power blade lifting appliance. Comprising a hold-down swing arm, the tail end of the hold-down swing arm is pivotally connected with a main body structure of the lifting appliance, a hold-down oil cylinder is pivotally connected between the hold-down swing arm and the main body structure of the lifting appliance, a hold-down mechanism is mounted at the front end of the hold-down swing arm, and the position of the hold-down mechanism in the length direction of the hold-down swing arm is adjustable; the pressing mechanism comprises a movable mounting seat mounted on the pressing swing arm, a screw mounting seat is pivotally connected to the lower part of the movable mounting seat, a plurality of groups of lifting screws with adjustable longitudinal positions are mounted on the screw mounting seat, and a pressing plate mounting seat universally connected with the lifting screws is arranged at the lower end parts of the lifting screws; pressing and holding pressing plates are mounted on the bottom surfaces of the pressing plate mounting seats, and a plurality of elastic connecting pieces for elastically connecting two adjacent groups of pressing plate mounting seats are arranged between the two adjacent groups of pressing plate mounting seats. The wind power blade pressing and fixing device can stably press and fix wind power blades, can be used for pressing and fixing wind power blades of different models, and is good in universality and high in adaptability.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power construction equipment, and in particular relates to a pressure plate adjustment structure of a wind power blade hanger. Background Art

[0002] Wind power generation is the fastest growing green energy technology in the world. Offshore wind power is at the forefront of wind power technology and is also a key area of ​​development for the international wind power industry.

[0003] As the capacity of offshore wind turbines increases, the blades become larger and heavier, the assembly height increases, and the deck space is limited, making it impossible to assemble the impeller on the deck before hoisting. The hub can only be installed first, and then the blades can be assembled in the air. The length of wind turbine blades is large and the shape is irregular, so there are difficulties in the transfer and transportation of blades and the hoisting construction. How to transport blades stably and reliably and install them stably and reliably is the focus of research and development in the industry.

[0004] Existing blade lifters can usually only perform simple lifting operations on the blades. Although a holding device is provided, the end of the holding device is designed according to the blade model. Due to the different blade models, the curved surfaces of the blades are different, which results in the need for the holding device to be customized according to each blade model, and has poor versatility. Since the same blade model may also result in different blade shapes due to processing errors, the holding device has poor fit and adaptability to the blade, resulting in insufficient stability of the blade during lifting and installation, affecting the construction effect. Utility Model Content

[0005] The utility model provides a pressure plate adjustment structure of a wind turbine blade hanger with reasonable structural design, strong versatility and strong adaptability in order to solve the technical problems existing in the known technology.

[0006] The utility model adopts the following technical solutions to solve the technical problems existing in the known technologies: a pressure plate adjustment structure of a wind turbine blade hanger comprises a pressure holding swing arm pivotally connected to the main structure of the hanger at the rear end, a pressure holding oil cylinder is pivotally connected between the pressure holding swing arm and the main structure of the hanger, a pressure holding mechanism is installed at the front end of the pressure holding swing arm, and the position of the pressure holding mechanism in the length direction of the pressure holding swing arm is adjustable; the pressure holding mechanism comprises a movable mounting seat with adjustable position installed on the pressure holding swing arm, a screw mounting seat is pivotally connected to the lower part of the movable mounting seat, a plurality of groups of lifting screws with adjustable longitudinal position are installed on the screw mounting seat, a pressure plate mounting seat universally connected thereto is arranged at the lower end of the lifting screw, a pressure holding plate is installed on the bottom surface of the pressure plate mounting seat, and a plurality of elastic connecting members are arranged between two adjacent groups of pressure plate mounting seats to elastically connect the two.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a pressure plate adjustment structure of a wind turbine blade hanger, which can abut and press the blades by arranging a pressure plate mounting seat and a holding pressure plate, and can adjust the positions of the pressure plate mounting seat and the holding pressure plate in the vertical direction by arranging a lifting screw rod and the pressure plate mounting seat for universal connection, and can make the pressure plate mounting seat and the holding pressure plate rotatable to automatically adjust the fitting surface with the blades, so as to make the fitting effect of the holding pressure plate and the blades better; by arranging a movable mounting seat pivotally connected to the screw mounting seat, the installation of two pressure plate mounting seats can be realized, so that the utility model has two rotatable holding pressure plates that fit with the blades, so as to improve the holding and fixing effect of the wind turbine blades, and can be used for the holding and fixing of wind turbine blades of different models, with good versatility and strong adaptability.

[0008] Preferably: the pressing mechanism also includes a ball head piece fixed to the lower end of the lifting screw, and a ball head sleeve fixed to the top surface of the pressure plate mounting seat, a accommodating cavity matching the ball head piece is opened in the middle of the ball head sleeve, and also includes two sets of ball head sealing plates detachably installed on the ball head sleeve for covering the ball head piece.

[0009] Preferably: the pressing mechanism also includes multiple groups of roller seats fixed to the top of the movable mounting seat, and the multiple groups of roller seats are arranged in pairs on both sides of the pressing swing arm, and each roller seat is rotatably connected to a mounting guide wheel that is in rolling contact with the pressing swing arm. The movable mounting seat is connected to the pressing swing arm by bolts and locking nuts.

[0010] Preferably: the holding swing arm includes two sets of mounting vertical plates arranged opposite to each other, a swing arm top plate is welded and fixedly connected to the upper part of the two sets of mounting vertical plates, a swing arm bottom plate is welded and fixedly connected to the lower part of the two sets of mounting vertical plates, the width of the swing arm bottom plate is greater than the width of the swing arm top plate, the mounting guide wheel is in rolling contact with the top surface of the swing arm bottom plate; a plurality of mounting strip holes distributed along the length direction of the swing arm bottom plate are opened on the swing arm bottom plate, and the movable mounting seat is connected to the swing arm bottom plate by bolts and locking nuts penetrated through the mounting strip holes.

[0011] Preferably: a pivot shaft is installed at the lower part of the movable mounting seat, and the screw mounting seat is pivotally connected to the movable mounting seat through the pivot shaft; the pressing mechanism also includes a plurality of first ribs installed on the top of the pressure plate mounting seat.

[0012] Preferably, the elastic connecting member is a tension spring, and a plurality of hooks are installed on the pressure plate mounting seat for hooking the ends of the elastic connecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of a partial structure of the utility model.

[0015] In the figure: 1. holding cylinder; 2. first articulated seat; 3. holding mechanism; 3-1. guide wheel installation; 3-2. movable mounting seat; 3-3. pivot shaft; 3-4. lifting screw; 3-5. screw mounting seat; 3-6. pressure plate mounting seat; 3-7. ball head sealing plate; 3-8. ball head sleeve; 3-9. first rib; 3-10. hook; 3-11. holding plate; 3-12. elastic connector; 3-13. second rib; 4. holding swing arm; 4-1. swing arm top plate; 4-2. mounting vertical plate; 4-3. swing arm bottom plate; 4-4. mounting strip hole; 5. second articulated seat; 6. third articulated seat. DETAILED DESCRIPTION

[0016] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0017] See also Figure 1 The pressure plate adjustment structure of the wind turbine blade hanger of the utility model includes a holding swing arm 4 pivotally connected to the main structure of the hanger at the rear end, and a holding cylinder 1 is pivotally connected between the holding swing arm 4 and the main structure of the hanger. Furthermore, a first hinge seat 2 is installed on the top of the holding swing arm 4, and the protruding end of the holding cylinder 1 is hinged to the first hinge seat 2 through a pin shaft; a second hinge seat 5 and a third hinge seat 6 are fixed to the main structure of the hanger, the second hinge seat 5 and the rear end of the holding swing arm 4 are hinged through a pin shaft, and the cylinder barrel of the holding cylinder 1 is hinged to the third hinge seat 6 through a pin shaft.

[0018] like Figure 2 As shown, structurally, the above-mentioned holding swing arm 4 includes two sets of mounting vertical plates 4-2 arranged opposite to each other. In order to improve the strength of the holding swing arm 4, the above-mentioned mounting vertical plates 4-2 adopt plates with an obtuse angle structure. A swing arm top plate 4-1 is welded and fixedly connected to the upper part of the two sets of mounting vertical plates 4-2, and a swing arm bottom plate 4-3 is welded and fixedly connected to the lower part of the two sets of mounting vertical plates 4-2. The width of the swing arm bottom plate 4-3 is greater than the width of the swing arm top plate 4-1.

[0019] A holding mechanism 3 is installed at the front end of the holding swing arm 4, and the position of the holding mechanism 3 in the length direction of the holding swing arm 4 can be adjusted. Figure 2 As shown, the above-mentioned holding mechanism 3 includes a movable mounting seat 3-2 with an adjustable position installed on the holding swing arm 4. Structurally, the movable mounting seat 3-2 includes a mounting top plate, and two sets of relatively arranged vertical plates are fixedly connected to the bottom of the mounting top plate, and a plurality of second ribs 3-13 are fixedly connected to the above-mentioned vertical plates.

[0020] A plurality of roller seats are fixedly connected to the top of the movable mounting seat 3-2, and the plurality of roller seats are arranged in pairs on both sides of the pressing swing arm 4. In this embodiment, four roller seats are arranged. A mounting guide wheel 3-1 is rotatably connected to each roller seat, and the mounting guide wheel 3-1 is in rolling contact with the top surface of the swing arm bottom plate 4-3 in the pressing swing arm 4. The swing arm bottom plate 4-3 is provided with a plurality of mounting strip holes 4-4 distributed along its length direction. The movable mounting seat 3-2 is connected to the swing arm bottom plate 4-3 by bolts and locking nuts penetrating through the mounting strip holes 4-4.

[0021] A pivot shaft 3-3 is installed at the lower part of the movable mounting seat 3-2, and a screw mounting seat 3-5 is pivotally connected through the pivot shaft 3-3. A plurality of lifting screws 3-4 with adjustable longitudinal positions are installed on the screw mounting seat 3-5. In the present embodiment, two groups of lifting screws 3-4 are provided and the two groups of lifting screws 3-4 are respectively installed at the two ends of the screw mounting seat 3-5. Two groups of locking nuts located above and below the screw mounting seat 3-5 are screwed on each lifting screw 3-4. The lifting screw 3-4 can be connected to the screw mounting seat 3-5 by screwing, or it can be directly installed in the through direction and connected by means of locking nuts.

[0022] A pressure plate mounting seat 3-6 universally connected thereto is provided at the lower end of the lifting screw 3-4. Structurally, the universal connection is a ball head connection, specifically: a ball head is fixedly connected to the lower end of the lifting screw 3-4, and a ball head sleeve 3-8 is fixedly connected to the top surface of the pressure plate mounting seat 3-6. A receiving cavity matching the ball head is provided in the middle of the ball head sleeve 3-8, and two sets of ball head sealing plates 3-7 are detachably installed on the ball head sleeve 3-8 by locking screws. A semicircular notch is provided on the ball head sealing plate 3-7 to cover the ball head. In addition, a plurality of first ribs 3-9 are installed on the top of the pressure plate mounting seat 3-6.

[0023] A holding plate 3-11 is installed on the bottom surface of the plate mounting seat 3-6. The holding plate 3-11 is made of rubber material to avoid scratching the blade surface. A plurality of elastic connectors 3-12 are arranged between two adjacent sets of plate mounting seats 3-6 to elastically connect the two sets. The elastic connectors 3-12 are made of tension springs. A plurality of hooks 3-10 are installed on the plate mounting seat 3-6 to hook the ends of the elastic connectors 3-12.

[0024] Working principle:

[0025] When in use, the pressure of the holding mechanism 3 on the blade is controlled by controlling the piston rod of the holding cylinder 1; the holding plate 3-11 installed on the plate mounting seat 3-6 is used to approach the wind turbine blade, and the distance between the holding plate 3-11 and the blade can be adjusted by rotating the lifting screw 3-4. Since the screw mounting seat 3-5 can rotate around the pivot shaft 3-3, and the lifting screw 3-4 is connected to the plate mounting seat 3-6 by a ball head, the fitting angle of the holding plate 3-11 and the wind turbine blade can be adjusted, that is, the holding plate 3-11 can be rotated, and the distance between the holding plate 3-11 and the wind turbine blade can be adjusted at the same time. The two adjustment methods make the holding plate 3-11 fit better with the wind turbine blade, and make the holding device of the utility model have strong versatility and a wide range of use, and are not limited to the size of the wind turbine blade. In the actual working process, if the position of the pressing mechanism 3 needs to be adjusted, it is necessary to first release the locking connection between the movable mounting seat 3-2 and the swing arm base plate 4-3, and then move the pressing mechanism 3 along the length direction of the swing arm base plate 4-3. After the pressing mechanism 3 moves to the schematic position, use the bolts and locking nuts to re-lock the connection between the pressing mechanism 3 and the pressing swing arm 4.

Claims

1. A pressure plate adjustment structure for a wind turbine blade hanger, characterized in that: The invention comprises a holding swing arm (4) whose rear end is pivotally connected to the main structure of the sling, a holding oil cylinder (1) is pivotally connected between the holding swing arm (4) and the main structure of the sling, a holding mechanism (3) is installed at the front end of the holding swing arm (4), and the position of the holding mechanism (3) in the length direction of the holding swing arm (4) is adjustable; the holding mechanism (3) comprises a movable mounting seat (3-2) installed on the holding swing arm (4) and the movable mounting seat (3-2) is provided below the holding swing arm (4). The upper portion of the lifting screw (3-4) is pivotally connected to a screw mounting seat (3-5), a plurality of groups of lifting screws (3-4) whose longitudinal positions can be adjusted are mounted on the screw mounting seat (3-5), a pressure plate mounting seat (3-6) universally connected thereto is arranged at the lower end of the lifting screw (3-4), a holding pressure plate (3-11) is mounted on the bottom surface of the pressure plate mounting seat (3-6), and a plurality of elastic connecting members (3-12) are arranged between two adjacent groups of pressure plate mounting seats (3-6) to elastically connect the two groups.

2. The pressure plate adjustment structure of the wind turbine blade hanger according to claim 1, characterized in that: The holding mechanism (3) also includes a ball head member fixedly connected to the lower end of the lifting screw (3-4), and also includes a ball head sleeve (3-8) fixedly connected to the top surface of the pressure plate mounting seat (3-6), a receiving cavity matching the ball head member is provided in the middle of the ball head sleeve (3-8), and also includes two sets of ball head sealing plates (3-7) detachably mounted on the ball head sleeve (3-8) for covering the ball head member.

3. The pressure plate adjustment structure of the wind turbine blade hanger according to claim 2, characterized in that: The holding mechanism (3) also includes a plurality of roller seats fixedly connected to the top of the movable mounting seat (3-2), the plurality of roller seats being arranged in pairs on both sides of the holding swing arm (4), each roller seat being rotatably connected to a mounting guide wheel (3-1) in rolling contact with the holding swing arm (4), and the movable mounting seat (3-2) being connected to the holding swing arm (4) via a bolt and a locking nut.

4. The pressure plate adjustment structure of the wind turbine blade hanger according to claim 3 is characterized in that: The holding swing arm (4) comprises two groups of mounting vertical plates (4-2) arranged opposite to each other, a swing arm top plate (4-1) is welded and fixedly connected to the upper part of the two groups of mounting vertical plates (4-2), and a swing arm bottom plate (4-3) is welded and fixedly connected to the lower part of the two groups of mounting vertical plates (4-2), the width of the swing arm bottom plate (4-3) is greater than the width of the swing arm top plate (4-1), and the mounting guide wheel (3-1) is in rolling contact with the top surface of the swing arm bottom plate (4-3); a plurality of mounting strip holes (4-4) distributed along the length direction of the swing arm bottom plate (4-3) are opened, and the movable mounting seat (3-2) is connected to the swing arm bottom plate (4-3) by bolts and locking nuts inserted in the mounting strip holes (4-4).

5. The pressure plate adjustment structure of the wind turbine blade hanger according to claim 1, characterized in that: A pivot shaft (3-3) is installed at the lower part of the movable mounting seat (3-2), and the screw mounting seat (3-5) is pivotally connected to the movable mounting seat (3-2) via the pivot shaft (3-3); the pressing mechanism (3) also includes a plurality of first ribs (3-9) installed on the top of the pressure plate mounting seat (3-6).

6. The pressure plate adjustment structure of the wind turbine blade hanger according to claim 1, characterized in that: The elastic connecting member (3-12) adopts a tension spring, and a plurality of hooking members (3-10) are installed on the pressure plate mounting seat (3-6) for hooking the end of the elastic connecting member (3-12).

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