Lifting tool for wind power base

Abstract

The utility model provides a lifting appliance tool for a wind power base, which belongs to the technical field of lifting appliances and comprises a connecting piece, the first ends of the suspension arms are rotationally connected with the connecting piece, the relative angle between every two adjacent suspension arms is adjustable, the axes of the suspension arms are located on the same plane, and suspension rings are fixedly arranged on the suspension arms; the clamp comprises a supporting plate fixedly arranged at the second end of the suspension arm, a pressing and fixing plate is arranged on the supporting plate, a clamping space is formed by the pressing and fixing plate and the supporting plate, the clamping space is used for clamping and fixing the yaw surface of the wind power base, and the pressing and fixing plate can move relative to the supporting plate so that the thickness of the clamping space can be adjusted; the lifting tool has the advantages that the first ends of the lifting arms are rotationally connected with the center connecting piece, the whole lifting tool can be regarded as an integral system for cooperative work, the relative angle between every two adjacent lifting arms is adjustable, and the axes of all the lifting arms are located on the same plane, so that the lifting tool is convenient to use. The lifting appliance can be flexibly attached to the yaw surfaces of the wind power bases of different specifications, so that the clamping force is uniformly distributed on the whole contact surface, a local high-pressure area possibly caused by a traditional clamp is effectively avoided, and the potential damage risk caused by clamping stress concentration is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hoist technical field, especially relate to a hoist frock for wind power base. BACKGROUND

[0002] In the installation and maintenance process of wind power equipment, hoisting operation is one of the most important links. Especially for the hoisting of large wind power base and other heavy components, the traditional hoist often cannot meet the complex and changeable work requirements. The traditional hoist usually adopts fixed structure design, and its clamping mode is single, which cannot be flexibly adjusted to adapt to the yaw surface of wind power base with different shapes and sizes. This not only limits the application range of the hoist, but also easily leads to uneven clamping problems, that is, the clamping force of some areas is too large, while other areas may be insufficient, forming a local high pressure area. Such uneven clamping force distribution is easy to cause damage to the surface of the wind power base, such as scratches, deformation or stress concentration points, thereby affecting the service life and safety of the entire wind power equipment. SUMMARY

[0003] The utility model aims at the above problems existing in prior art, and provides a hoist with more uniform clamping force distribution.

[0004] The utility model discloses a hoist frock for wind power base, which comprises:

[0005] A connecting piece;

[0006] At least two hoisting arms, the first end of the hoisting arm is rotatably connected with the connecting piece, the relative angle between adjacent two hoisting arms is adjustable, the axis of the hoisting arm is located on the same plane, and a lifting ring is fixedly arranged on the hoisting arm;

[0007] A clamp, the clamp comprises a support plate fixedly arranged at the second end of the hoisting arm, a pressing plate is arranged on the support plate, the pressing plate and the support plate form a clamping space, the clamping space is used for clamping and fixing the yaw surface of the wind power base, and the pressing plate can move relative to the support plate to adjust the thickness of the clamping space.

[0008] In the hoist frock for wind power base, an adjusting plate is fixedly arranged on the support plate, an adjusting hole is arranged on the adjusting plate, an adjusting screw is movably arranged in the adjusting hole, the pressing plate is fixedly arranged at the first end of the adjusting screw, the second end of the adjusting screw is an operating end, and a nut is arranged on the adjusting screw to lock it.

[0009] In the hoist frock for wind power base, the adjusting hole is a waist-shaped hole, and the waist-shaped hole extends along the axis direction of the hoisting arm.

[0010] In the lifting tool for the wind power base, the two adjusting holes are symmetrically arranged along the axial direction of the lifting arm.

[0011] In the lifting tool for the wind power base, the lifting plate is rotatably arranged on the lifting arm, the lifting ring is fixedly arranged on the lifting plate, and the support plate is fixedly connected with the lifting plate.

[0012] In the lifting tool for the wind power base, the flexible connecting layer is fixedly arranged on the support plate and the pressing plate.

[0013] In the lifting tool for the wind power base, the lifting arm comprises a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm can relatively slide so that the length of the lifting arm is adjustable, the second connecting arm is rotatably connected with the connecting piece, and the first connecting arm is connected with the lifting ring.

[0014] In the lifting tool for the wind power base, the connecting piece comprises two limiting plates, a connecting column is fixedly arranged between the two limiting plates, and the lifting arm is rotatably connected with the connecting column.

[0015] In the lifting tool for the wind power base, the first end of each lifting arm is fixedly provided with a connecting ring, the connecting ring is sleeved on the connecting column and rotatably connected with the connecting column, and a plurality of connecting rings are sequentially and laminatedly arranged.

[0016] In the lifting tool for the wind power base, a plurality of arc-shaped limiting waist holes are arranged on the limiting plate, two limiting screws are arranged in each limiting waist hole, the two limiting screws are located on the two sides of the corresponding lifting arm, and a locking nut is arranged on each limiting screw.

[0017] Compared with the prior art, the lifting tool has the following beneficial effects:

[0018] (1) The first ends of the plurality of lifting arms are rotatably connected with a central connecting piece, the whole lifting tool can be regarded as a whole system working cooperatively, the relative angle between the two adjacent lifting arms is adjustable, the axes of all the lifting arms are located on the same plane, the lifting tool can be flexibly attached to the yaw surface of the wind power base of different specifications, the clamping force is uniformly distributed on the whole contact surface, the local high-pressure area caused by the traditional clamp is effectively avoided, and the potential damage risk caused by the clamping stress concentration is reduced.

[0019] (2), the clamping space formed by the support plate and the pressing solid plate can be fine-tuned according to actual needs, which further guarantees accurate control and adaptability in the clamping process, and the operator can adjust the clamping force according to the specific requirements of the wind power base, which not only guarantees the safety and stability of clamping, but also maximally reduces the physical pressure on the surface of the wind power base, effectively preventing the surface damage or deformation of the wind power base. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 is Figure 1 the schematic diagram of the three-dimensional structure after removing the connecting piece in the utility model;

[0022] Figure 3 is Figure 1 the schematic diagram of the cross-sectional structure;

[0023] Figure 4 is the connection diagram of one of the hoisting arms and the clamp;

[0024] Figure 5 is the schematic diagram of the three-dimensional structure of the clamp.

[0025] In the figure, 100, connecting piece; 101, limit plate; 102, connecting column; 103, arc waist hole; 200, hoisting arm; 201, first connecting arm; 202, second connecting arm; 203, connecting ring; 300, clamp; 301, support plate; 302, pressing solid plate; 303, adjusting plate; 304, adjusting screw; 305, adjusting hole; 306, hoisting plate; 307, lifting ring. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the utility model and is further described in conjunction with the drawings, but the utility model is not limited to these embodiments.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the specific posture changes, the directional indications also change accordingly.

[0028] As Figures 1-5 indicated, a lifting tool for a wind power base, comprising:

[0029] connecting piece 100;

[0030] At least two lifting arms 200, the first end of the lifting arm 200 is rotatably connected with the connecting piece 100, and the relative angle between the adjacent two lifting arms 200 is adjustable, and the axis of the lifting arm 200 is located on the same plane;

[0031] The clamp 300 includes a support plate 301 fixedly arranged at the second end of the lifting arm 200, and a pressing plate 302 is arranged on the support plate 301, and the pressing plate 302 and the support plate 301 form a clamping space, the clamping space is used for clamping and fixing the yaw surface of the wind power base, and the pressing plate 302 can move relative to the support plate 301 to adjust the thickness of the clamping space; a lifting ring 307 is fixedly arranged on the support plate 301.

[0032] In the embodiment, the first end of the plurality of lifting arms 200 is rotatably connected with a central connecting piece 100, and the whole lifting tool can be regarded as a cooperative whole system, since the relative angle between the adjacent two lifting arms 200 is adjustable, and the axis of all the lifting arms 200 is located on the same plane, the lifting tool can be flexibly attached to the yaw surface of the wind power base of different specifications, so that the clamping force is uniformly distributed on the whole contact surface, the local high-pressure area caused by the traditional clamp 300 is effectively avoided, and the potential damage risk caused by the clamping stress concentration is reduced; in addition, the clamping space formed by the support plate 301 and the pressing plate 302 can be finely adjusted according to actual needs, which further guarantees the precise control and adaptability in the clamping process, and the operator can adjust the clamping force according to the specific requirements of the wind power base, which not only guarantees the safety and stability of the clamping, but also maximally reduces the physical pressure on the surface of the wind power base, effectively preventing the surface damage or deformation of the wind power base.

[0033] Specifically, the support plate 301 is fixedly provided with an adjusting plate 303, the adjusting plate 303 is provided with an adjusting hole 305, the adjusting hole 305 is movably provided with an adjusting screw 304, the pressing plate 302 is fixedly arranged at the first end of the adjusting screw 304, the second end of the adjusting screw 304 is an operating end, and the adjusting screw 304 is provided with nuts for locking.

[0034] In the embodiment, the thickness of the clamping space between the pressing plate 302 and the support plate 301 can be controlled by adjusting the extension distance of the adjusting screw 304 relative to the adjusting plate 303, and when the extension distance of the adjusting screw 304 is adjusted, only the two nuts on the adjusting screw 304 need to be loosened, and the operator can complete the adjustment work without complex tools or training, which greatly simplifies the operation process and improves the work efficiency.

[0035] Further preferably, the adjusting hole 305 is a waist-shaped hole, and the waist-shaped hole extends along the axis direction of the lifting arm 200.

[0036] In this embodiment, the design of the waist-shaped hole allows the adjustment screw 304 to move freely within a certain range, increasing the adaptability of the clamp 300 to wind power base of different sizes. No matter what size of the yaw surface is faced, the optimal clamping position can be found through simple adjustment, ensuring that each clamping is both safe and efficient.

[0037] Further preferably, the number of adjustment holes 305 is two, and the two adjustment holes 305 are symmetrically arranged along the axis direction of the hoist arm 200. By symmetrically arranging two adjustment holes 305 on the adjustment plate 303 and respectively installing an adjustment screw 304 in each adjustment hole 305, the position of the pressing plate 302 can be independently adjusted at two points, which can ensure that the clamping force is more evenly distributed on the entire contact surface, effectively avoiding local high-pressure areas caused by single-point force, reducing clamping stress, and thus protecting the surface of the wind power base from damage. Whether during hoisting or moving, this symmetrical layout can ensure that the clamping space between the pressing plate 302 and the support plate 301 remains stable and will not shift or tilt due to changes in external forces, improving the overall operational safety.

[0038] Further preferably, a hoist plate 306 is rotatably arranged on the hoist arm 200, and a lifting ring 307 is fixedly arranged on the hoist plate 306, and the support plate 301 is fixedly connected with the hoist plate 306.

[0039] In this embodiment, the design of the lifting ring 307 directly connected with the support plate 301 allows most of the force generated during hoisting to be directly transmitted to the support plate 301 and the structure it is fixed to, rather than the hoist arm 200 itself. This can significantly reduce the burden on the hoist arm 200, reducing the risk of fatigue damage due to long-term stress and prolonging the service life of the hoist arm 200. Moreover, since the lifting ring 307 is directly connected with the support plate 301, the center of gravity of the entire system is more stable, reducing the possibility of shaking or imbalance caused by uneven stress on the hoist arm 200. This not only improves the safety of the operation, but also ensures the smooth progress of the hoisting process, helping to protect the hoisted items (such as wind power bases) from accidental impact or damage.

[0040] It is worth mentioning that the adjustment plate 303 and the support plate 301 are connected and fixed through the hoist plate 306.

[0041] Further preferably, a flexible connection layer is fixedly arranged on the support plate 301 and the pressing plate 302. The introduction of the flexible connection layer can provide a buffer interface during clamping, reducing the possibility of scratches, wear, or other types of physical damage to the wind power base yaw surface caused by rigid contact. Moreover, since flexible materials have a certain elasticity and compliance, they can fill small irregularities when clamped, thereby avoiding the formation of local high-pressure points.

[0042] It is worth mentioning that the material of the flexible connecting layer can be selected from rubber, silica gel and other materials.

[0043] As preferred, the boom 200 comprises a first connecting arm 201 and a second connecting arm 202, the first connecting arm 201 and the second connecting arm 202 can relatively slide so that the length of the boom 200 is adjustable, the second connecting arm 202 is rotationally connected with the connecting piece 100, and the first connecting arm 201 is connected with the clamp 300.

[0044] In the embodiment, the relative sliding mechanism between the first connecting arm 201 and the second connecting arm 202 allows the user to adjust the overall length of the boom 200 according to specific needs, which improves the application range of the lifting tool and makes it flexible to cope with various sizes of work objects or operation space restrictions; and by reasonably setting the sliding ratio between the first connecting arm 201 and the second connecting arm 202, the force transmission path during lifting can be effectively optimized, stress concentration points can be reduced, the service life of the boom 200 can be prolonged, and the maintenance cost can be reduced.

[0045] It is worth mentioning that the first connecting arm 201 and the second connecting arm 202 can be realized by a hydraulic rod.

[0046] As preferred, the connecting piece 100 comprises two limiting plates 101, a connecting column 102 is fixedly arranged between the two limiting plates 101, the boom 200 is rotationally connected with the connecting column 102, and the boom 200 is abuttingly connected with the two limiting plates 101 and can rotate relative to the two limiting plates 101.

[0047] In the embodiment, by fixedly arranging the connecting column 102 between the two limiting plates 101, not only the mechanical strength and rigidity of the entire connecting piece 100 are enhanced, but also the connecting column 102 can stably support multiple booms 200, the design of the limiting plate 101 helps to prevent unnecessary displacement or deformation of the connecting column 102 during use, thereby improving the stability of the overall structure; the limiting plate 101 can also provide additional support for the boom 200 to prevent unnecessary deformation or displacement under heavy load.

[0048] It is worth mentioning that the first end of the boom 200 is square-shaped, which increases the contact area with the limiting plate 101.

[0049] Further preferably, a connecting ring 203 is fixedly arranged on the first end of each boom 200, the connecting ring 203 is sleeved on the connecting column 102 and rotationally connected with the connecting column 102, and the multiple connecting rings 203 are sequentially and laminatedly arranged.

[0050] In the embodiment, the first end of each of the hoisting arms 200 is provided with a connecting ring 203, and the connecting rings 203 are sleeved on the connecting column 102 to realize the rotary connection, so that each of the hoisting arms 200 can be independently adjusted in angle; the design that the plurality of connecting rings 203 are sequentially and laminatedly arranged not only saves space, but also ensures that all the hoisting arms 200 can rotate around the same center point, and the overall coordination and synchronization are enhanced.

[0051] As shown in Figure 2 As an optional solution, three hoisting arms 200 are provided in the application, and the first end of each of the hoisting arms 200 is provided with a connecting ring 203, one of which is located at the middle position of the first end of the hoisting arm 200, and the other two connecting rings 203 are located at the two side positions of the first end of the hoisting arm 200, so that the three hoisting arms 200 are rotatably connected to the same connecting column 102, and the axes of the three hoisting arms 200 are located on the same plane.

[0052] Further preferably, a plurality of arc-shaped limiting waist holes 103 are arranged on the limiting plate 101, and two limiting screws are arranged in each of the limiting waist holes 103, the two limiting screws are located at the two sides of the corresponding hoisting arm 200, and a locking nut is arranged on each of the limiting screws, and the limiting screws are used to determine the relative position between the hoisting arm 200 and the limiting plate 101, so that the hoisting arm 200 cannot be accidentally moved due to external force.

[0053] It should be noted that the description of "first", "second", "one" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance of the technical features indicated or the number of the technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that the ordinary skilled person in the art can realize it, when the combination of the technical solutions appears to be contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0055] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A spreader tool for a wind power foundation, characterized in that, The utility model relates to a wind power base clamping device which comprises a connecting piece, at least two hanging arms, a clamp, a supporting plate, a pressing plate, an adjusting plate, an adjusting hole, an adjusting screw, a nut, a waist-shaped hole, a connecting ring, a connecting column, a limiting waist hole, a limiting screw and a locking nut. The first ends of the hanging arms are rotatably connected to the connecting piece, and the relative angle between adjacent two hanging arms is adjustable. The axes of the hanging arms are located on the same plane. The hanging ring is fixedly arranged on the hanging plate.

2. A spreader tool for a wind power foundation according to claim 1, characterized in that The supporting plate and the pressing plate are fixedly provided with a flexible connecting layer.

3. A spreader tool for a wind power foundation according to claim 2, characterized in that The first connecting arm and the second connecting arm can relatively slide to adjust the length of the hanging arm.

4. The spreader tooling for a wind tower base according to claim 2, wherein, The second connecting arm is rotatably connected to the connecting piece, and the first connecting arm is connected to the clamp.

5. The spreader tooling for a wind tower base according to claim 1, wherein, The connecting piece comprises two limiting plates.

6. A spreader tool for a wind power foundation according to claim 1, characterized in that The connecting column is fixedly arranged between the two limiting plates.

7. A spreader tool for a wind power foundation according to claim 1, characterized in that The first end of each hanging arm is fixedly provided with a connecting ring.

8. The spreader tooling for a wind tower base according to claim 1, wherein, The connecting ring is sleeved on the connecting column and rotatably connected to the connecting column.

9. A spreader tool for a wind power foundation according to claim 8, characterized in that The limiting waist hole is arranged on the limiting plate.

10. A spreader tool for a wind power foundation according to claim 8, characterized in that Two limiting screws are arranged in each limiting waist hole. The limiting screws are located on the two sides of the corresponding hanging arm. The locking nut is arranged on each limiting screw.

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