Extension type lifting appliance for offshore wind power construction
By introducing telescopic heads, steel ropes and counterweight mechanisms into offshore wind power construction slings, using motor drive to clamp the blades and controlling the extension direction of the slings in conjunction with cylinders, the problems of swaying and uneven counterweights under wind power are solved, and construction accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202422233205.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Existing offshore wind power construction slings are prone to shake under the action of wind, resulting in inaccurate installation of blades, posing safety hazards, and uneven counterweight problems affect construction accuracy and efficiency.
The telescopic head and steel rope on the top of the sling body are used, combined with the balance plate and counterweight mechanism, and the bidirectional screw clamps the blades through a motor drive, and the expansion direction of the sling is controlled with the cylinder and telescopic rod to ensure that the sling maintains balance and precise movement under the action of wind.
It improves the accuracy and working efficiency of offshore wind power construction, avoids deviation caused by uneven counterweights, and ensures the safety and stability of the lifting process.
Smart Images

Figure CN223239565U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of offshore wind power, in particular to an insertion type hoisting device used for offshore wind power construction. Background Art
[0002] Offshore wind farms are offshore wind farms located in water depths of approximately 10 meters. Compared to onshore wind farms, offshore wind farms offer the following advantages: they occupy no land resources, are largely unaffected by topography, have higher wind speeds, and offer more abundant wind energy resources. The turbine towers and massive blades of offshore wind farms are crucial components, typically requiring cranes to lift them from land or vessels onto the offshore wind turbines. Cranes provide the powerful lifting capacity and stability to ensure the safe and efficient installation of these critical components.
[0003] Chinese patent publication number CN221027322U provides a reach-in sling for offshore wind power construction. The technical solution provided in the patent document is as follows: it includes a sling body mounted on one side of the tower, steel cables, and connectors. Several steel cables are fixedly connected to a support base at one end away from the sling body. The other side of the support base is connected to a movable mechanism. The other end of the movable mechanism is connected to a base plate. The other end of the base plate is connected to a semicircular ring. The semicircular ring and the base plate are each provided with a clamping groove on one side adjacent to the other. The inner wall of the clamping groove is slidably connected to the outer wall of the tower. The side wall of the support base is provided with a movable opening, and the inner wall of the movable opening is connected to a squeezing mechanism. This reach-in sling for offshore wind power construction, when the blade is lifted by the sling body and installed with the connector on the tower, can be inserted into the outer wall of the tower through the clamping groove between the semicircular ring and the base plate, and then rise along the tower. Even if there is wind outside, it is not easy to deviate too much, making installation more convenient and quick.
[0004] In order to solve the problem that the blades of the existing device are shaken by the wind, which makes it inconvenient to align with the tower and even poses a safety hazard, the existing technology is to add a base plate and a support seat between the sling body and the tower, and set an extrusion mechanism, a moving mechanism and a semi-circular ring between the base plate and the support seat. However, uneven weighting will still occur, which will lead to a decrease in the accuracy of blade installation. Utility Model Content
[0005] The purpose of the present utility model is to provide an in-reach hoist for offshore wind power construction, so as to solve the problems raised in the above-mentioned background technology.
[0006] The present invention adopts the following technical solutions to solve the above problems:
[0007] A reach-in sling for offshore wind power construction, comprising a sling body, a telescopic head provided on one side of the top of the sling body, a steel cable provided on the bottom of the telescopic head, the sling body being connected to an reach-in mechanism, the reach-in mechanism comprising a balance plate, a counterweight mechanism provided on one side of the balance plate, a slide groove provided on the other side of the balance plate, the counterweight mechanism and the slide groove being respectively arranged on both sides of the sling body, a moving component provided in the slide groove, a clamping component provided on the surface of the moving component, and the surface of the clamping component being fixedly connected to the steel cable rope.
[0008] Furthermore, the moving assembly includes a moving seat and a slide rail fixed on the balance plate, one side of the bottom surface of the moving seat is movably connected to the slide rail, and the slide rail is welded to the side surface of the balance plate.
[0009] Furthermore, a cylinder is fixedly installed on one side of the inner part of the slide groove, an output end of the cylinder is fixedly connected to a telescopic rod, and the other end of the telescopic rod is fixedly connected to the movable seat.
[0010] Furthermore, the clamping assembly includes a lower clamping plate, a side plate and an upper clamping plate, the side plate is fixedly connected to the movable assembly, a top plate is welded on the top of the side plate, the movable assembly, the side plate and the top plate form a cavity, and the lower clamping plate and the upper clamping plate are movably arranged in the cavity.
[0011] Furthermore, a bidirectional screw is threadedly connected between the lower clamping plate and the upper clamping plate, and the input end of the bidirectional screw passes through the top plate and is fixedly connected to a motor, and the motor is installed on the upper surface of the top plate.
[0012] Furthermore, a base is welded to the bottom of the sling body, a movable groove is opened on one side of the sling body, and a sliding rod is fixedly installed in the movable groove.
[0013] Furthermore, the balance plate is arranged in the middle of the sling body, and the balance plate is sleeved on the sliding rod.
[0014] Furthermore, the counterweight mechanism includes a placement column, which is welded to the other side of the balance plate, and a counterweight disc is sleeved on the surface of the placement column.
[0015] The beneficial effects of the present invention are:
[0016] 1. The utility model provides an in-reach spreader for offshore wind power construction. By setting a motor and a bidirectional screw, the upper and lower clamping plates clamp the blades, and then lift them to the required height through the steel cable balance plate. Then, the cylinder and the telescopic rod are used to drive the telescopic head to extend in the direction of construction through the upper and lower clamping plates and the steel cable. At the same time, the objects clamped by the upper and lower clamping plates are also moved in the direction, avoiding the problem of deviation due to uneven counterweight during movement and improving the construction accuracy of the equipment.
[0017] 2. The utility model provides an in-reach spreader for offshore wind power construction. By setting a placement column and a counterweight disc, it is convenient for users to adjust according to the weight of the construction work, so that the device always remains balanced, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the present invention, the following will briefly introduce the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is a front view structural diagram of the utility model;
[0020] Figure 2 This is a side structural diagram of the present utility model;
[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;
[0022] Figure 4 It is a partial structural diagram of the utility model.
[0023] In the figure: 1- sling body; 11- base; 12- telescopic head; 13- steel rope; 2- extension mechanism; 21- balance plate; 22- slide; 23- cylinder; 24- telescopic rod; 25- moving seat; 26- slide rail; 27- side plate; 28- lower clamping plate; 29- bidirectional screw; 210- upper clamping plate; 211- motor; 3- counterweight mechanism; 31- placement column; 32- counterweight disc. DETAILED DESCRIPTION
[0024] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "top", "bottom", "longitudinal", etc., indicating the orientation or state relationship, are based on the orientation or state relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication or connection between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.
[0026] Example 1
[0027] like Figures 1-4 As shown, the utility model provides an insertion type sling for offshore wind power construction, including a sling body 1, a base welded to the bottom of the sling body 1, a movable groove is opened on one side of the sling body 1, a slide rod is fixedly installed in the movable groove, a telescopic head 12 is provided on one side of the top of the sling body 1, and a steel cable 13 is provided at the bottom of the telescopic head 12. An insertion type mechanism 2 is provided on the upper part of the sling body 1, and the insertion type mechanism 2 includes a balance plate 21, which is arranged in the middle of the sling body 1, and the balance plate 21 is sleeved on the slide rod. The sling body 1 is used to install the balance plate 21 through the movable groove and the slide rod. The balance plate 21 drives the insertion type mechanism 2 to remain stable when it moves up and down through the slide rod. A counterweight mechanism 3 is provided on one side of the balance plate 21, and a slide groove 22 is opened on the other side of the balance plate 21. The counterweight mechanism 3 and the slide groove 22 are respectively arranged on both sides of the sling body 1, and a moving component is provided in the slide groove 22. The surface of the moving component is provided with a clamping component, and the surface of the clamping component is fixedly connected to the steel cable 13.
[0028] like Figure 3 、 Figure 4 As shown, the moving assembly includes a moving seat 25 and a slide rail 26 fixed on the balance plate 21. One side of the bottom surface of the moving seat 25 is movably connected to the slide rail 26. The slide rail 26 is welded to the side of the balance plate 21. A cylinder 23 is fixedly installed on one side of the inner side of the slide groove 22. The output end of the cylinder 23 is fixedly connected to the telescopic rod 24. The other end of the telescopic rod 24 is fixedly connected to the moving seat 25. A fixing plate is installed on the surface of the cylinder 23. The fixing plate is used to fix the cylinder 23 in the slide groove 22.
[0029] The clamping assembly includes a lower clamping plate 28, a side plate 27 and an upper clamping plate 210. The side plate 27 is fixedly connected to the movable seat 25. The movable seat 25 drives the side plate 27 to translate in the slide groove 22 and on the surface of the slide rail 26. A top plate is welded on the top of the side plate 27. The movable seat 25, the side plate 27 and the top plate form a cavity. The lower clamping plate 28 and the upper clamping plate 210 are movably arranged in the cavity. A bidirectional screw 29 is threadedly connected between the lower clamping plate 28 and the upper clamping plate 210. The input end of the bidirectional screw 29 passes through the top plate and is fixedly connected to a motor 211. The motor 211 drives the upper clamping plate 210 and the lower clamping plate 28 to move the blades through the bidirectional screw 29. For fixation, the motor 211 is installed on the upper surface of the top plate, and the top plate is used to install the motor 211. By setting the motor 211 in conjunction with the bidirectional screw 29, the upper clamping plate 210 and the lower clamping plate 28 clamp the blade, and then lift it to the required height through the steel cable 13 and the balance plate 21, and then the cylinder 23 cooperates with the telescopic rod 24 to make the moving seat 25 drive the telescopic head 12 to extend in the direction of required construction through the supporting mechanism and the steel cable 13, and at the same time, the objects clamped by the upper and lower clamping plates are also moved in that direction, avoiding the problem of offset due to uneven weight during movement, thereby improving the construction accuracy of the equipment.
[0030] Example 2
[0031] like Figure 4 As shown, the counterweight mechanism 3 includes a placement column 31, which is welded to the other side of the balance plate 21. A counterweight disc 32 is sleeved on the surface of the placement column 31. Other technical features are the same as those of Example 1.
[0032] On the basis of Example 1, the placement column 31 is used to add a counterweight disc 32 so that the insertion mechanism 2 can always maintain balance when rising. By setting the placement column 31 in conjunction with the counterweight disc 32, it is convenient for the user to adjust according to the weight of the construction work, so that the device can always maintain balance, thereby improving the working efficiency of the device.
[0033] When in use, first place the blade to be lifted on the lower clamping plate 28, and use the motor 211 to cooperate with the bidirectional screw 29 to make the upper clamping plate 210 and the lower clamping plate 28 clamp the blade, and then lift it to the required height through the steel cable 13 and the balance plate 21, and then use the cylinder 23 to cooperate with the telescopic rod 24 to make the moving seat 25 drive the telescopic head 12 to extend in the direction of required construction through the clamping assembly and the steel cable 13, and at the same time make the objects clamped by the upper clamping plate 210 and the lower clamping plate 28 also move in that direction, avoiding the problem of offset due to uneven counterweight during movement, thereby improving the construction accuracy of the equipment, and by placing the column 31 in combination with the counterweight disc 32, it is convenient for users to adjust according to the weight of the construction work, so that the device always remains balanced, thereby improving the working efficiency of the device.
[0034] The above examples are used to describe the present invention in detail. However, the contents are only preferred embodiments of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.
Claims
1. A reach-in spreader for offshore wind power construction, comprising a spreader body (1), characterized in that: A telescopic head (12) is provided on one side of the top of the sling body (1), and a steel rope (13) is provided on the bottom of the telescopic head (12). The sling body (1) is connected to an inserting mechanism (2), and the inserting mechanism (2) includes a balance plate (21). A counterweight mechanism (3) is provided on one side of the balance plate (21), and a slide groove (22) is provided on the other side of the balance plate (21). The counterweight mechanism (3) and the slide groove (22) are respectively placed on both sides of the sling body (1), and a moving component is provided in the slide groove (22). A clamping component is provided on the surface of the moving component, and the surface of the clamping component is fixedly connected to the steel rope (13).
2. The reach-in spreader for offshore wind power construction according to claim 1, characterized in that: The moving assembly comprises a moving seat (25) and a slide rail (26) fixed on the balance plate (21); one side of the bottom surface of the moving seat (25) is movably connected to the slide rail (26); and the slide rail (26) is welded to the side surface of the balance plate (21).
3. The reach-in spreader for offshore wind power construction according to claim 2, characterized in that: A cylinder (23) is fixedly installed on one side of the interior of the slide groove (22); an output end of the cylinder (23) is fixedly connected to a telescopic rod (24); and the other end of the telescopic rod (24) is fixedly connected to a movable seat (25).
4. The reach-in spreader for offshore wind power construction according to claim 1, characterized in that: The clamping assembly includes a lower clamping plate (28), a side plate (27) and an upper clamping plate (210), the side plate (27) is fixedly connected to the movable assembly, a top plate is welded on the top of the side plate (27), the movable assembly, the side plate (27) and the top plate form a cavity, and the lower clamping plate (28) and the upper clamping plate (210) are movably arranged in the cavity.
5. The reach-in spreader for offshore wind power construction according to claim 4, characterized in that: A bidirectional screw (29) is threadedly connected between the lower clamping plate (28) and the upper clamping plate (210); an input end of the bidirectional screw (29) passes through the top plate and is fixedly connected to a motor (211); and the motor (211) is mounted on the upper surface of the top plate.
6. The reach-in spreader for offshore wind power construction according to claim 1, characterized in that: A base is welded to the bottom of the sling body (1), and a movable groove is opened on one side of the sling body (1), in which a slide rod is fixedly installed.
7. The reach-in spreader for offshore wind power construction according to claim 6, characterized in that: The balance plate (21) is arranged in the middle of the sling body (1), and the balance plate (21) is sleeved on the slide rod.
8. The reach-in spreader for offshore wind power construction according to claim 1, characterized in that: The counterweight mechanism (3) comprises a placement column (31), the placement column (31) is welded to one side of the balance plate (21), and a counterweight disc (32) is sleeved on the surface of the placement column (31).
Citation Information
Patent Citations
A reach-in hanger for offshore wind power construction
CN221027322U