Lifting device

Abstract

The invention relates to a lifting device. The lifting device comprises a main body part, the driving part is arranged on one side of the main body part in the first direction, and the driving part can drive the lifting device to move; the bearing part is arranged on the side, away from the driving part, of the main body part, and at least part of the surface shape of the bearing part is matched with the surface shape of the blade; the lifting part is arranged on the main body part, the orthographic projection of the lifting part, the orthographic projection of the bearing part and the orthographic projection of the driving part are staggered in the first direction, and the extension size of the lifting part in the first direction is adjustable. According to the lifting device, the machining efficiency can be improved, and the machining cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation, and in particular to a lifting device. Background Art

[0002] In existing wind turbines, blades are an important component. After processing, existing blades are usually placed in a flat position and supported and fixed with corresponding flat brackets. Subsequently, before the blades are shipped out, the flat brackets need to be replaced with transport brackets that are convenient for transportation. During this process, the blades need to be at least partially lifted to a preset height to replace the brackets. The existing method of lifting blades is usually to use a special equipment crane to lift them to a certain height and move them to the placed transport brackets. The processing efficiency is low, and the processing costs required for leasing equipment are high.

[0003] Therefore, there is an urgent need for a lifting device that can improve processing efficiency and reduce processing costs. Summary of the invention

[0004] An embodiment of the present application provides a lifting device, which can improve processing efficiency and reduce processing costs.

[0005] In the first aspect, according to an embodiment of the present application, a lifting device is proposed, which is applied to a blade, comprising: a main body; a driving part, which is arranged on one side of the main body in a first direction, and the driving part can drive the lifting device to move; a bearing part, which is arranged on a side of the main body away from the driving part, and at least a part of the surface shape of the bearing part matches the surface shape of the blade; the lifting part is arranged on the main body, and along the first direction, the orthographic projection of the lifting part is staggered with the orthographic projection of the bearing part and the orthographic projection of the driving part, and the extension size of the lifting part in the first direction is adjustable.

[0006] According to one aspect of an embodiment of the present application, the bearing portion includes a supporting member and a plurality of supporting frames arranged relatively to each other in a second direction, the second direction intersects with the first direction, the supporting member is connected between the supporting frames, and the supporting member and the main body are arranged at intervals from each other.

[0007] According to one aspect of an embodiment of the present application, at least one of the multiple support frames is a folding support frame, which is rotatably connected to the main body. The load-bearing portion also includes a first telescopic rod, and both ends of the first telescopic rod are respectively connected to the main body and the folding support frame. The first telescopic rod can drive the folding support frame to rotate relative to the main body.

[0008] According to one aspect of the embodiment of the present application, the bearing portion includes two support frames, both of which are folding support frames, and the first telescopic rod is arranged on one side of the folding support frames close to each other.

[0009] According to one aspect of the embodiment of the present application, the supporting member includes a flexible supporting fabric layer, and the flexible supporting fabric layer is made of any one of glass fiber, carbon fiber and polyester fiber.

[0010] According to one aspect of an embodiment of the present application, in the third direction, the width of the supporting member is less than or equal to 1.8m, the first direction, the second direction and the third direction are arranged to intersect each other, and in the second direction, the maximum spacing between the support frames is greater than or equal to 3m.

[0011] According to one aspect of the embodiment of the present application, the lifting device includes a plurality of lifting parts, which are arranged at intervals along the circumference of the main body, and the plurality of lifting parts all extend along the first direction.

[0012] According to one aspect of an embodiment of the present application, the main body includes a first end and a second end relatively arranged in a second direction, and the multiple lifting parts include two first lifting parts arranged near the first end and two second lifting parts arranged near the second end; the first lifting part is rotatably connected to the main body, and the first lifting part can be rotated to extend along the second direction.

[0013] According to one aspect of the embodiment of the present application, the bearing portion includes a supporting member and a plurality of support frames arranged relatively to each other in the second direction, at least one of the plurality of support frames is a folding support frame; and the folding support frame is arranged close to the first end.

[0014] According to one aspect of an embodiment of the present application, the lifting part also includes a second telescopic rod, which is connected between the main body and the second lifting part. The second telescopic rod can drive the second lifting part to move along a third direction relative to the main body, and the first direction, the second direction and the third direction are arranged to intersect each other.

[0015] According to one aspect of the embodiment of the present application, the lifting part also includes a connecting rod, one end of which is connected to the second lifting part, and the other end opposite to it is rotatably connected to the main body; the second telescopic rod is connected between the second end and the second lifting part.

[0016] According to one aspect of the embodiment of the present application, the two first lifting parts and the two second lifting parts are respectively arranged symmetrically with respect to a reference plane, and the reference plane is perpendicular to the third direction.

[0017] According to one aspect of an embodiment of the present application, the driving unit includes a driving motor, a control module and a plurality of driving wheels, the driving motor is connected to the driving wheels, and the control module is communicatively connected to the driving motor.

[0018] According to one aspect of the embodiment of the present application, the lifting part includes a telescopic hydraulic cylinder.

[0019] An embodiment of the present application provides a lifting device for blades, which includes a main body and a driving part, a bearing part and a lifting part arranged on the main body. The main body provides a support and fixing seat for the user, and the driving part can drive the lifting device to move under the blade, and the bearing part is raised to be against the blade through the lifting part, and then the blade is lifted by the lifting part, thereby making it easy to replace the bracket used and eliminating the use of lifting equipment, thereby improving processing efficiency and reducing processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0021] Figure 1 is a structural schematic diagram of a lifting device provided by an embodiment of the present application;

[0022] Figure 2 is a structural schematic diagram of a lifting device provided by another embodiment of the present application;

[0023] Figure 3 It is a structural schematic diagram of a lifting device provided in yet another embodiment of the present application.

[0024] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.

[0025] in:

[0026] 100-lifting device;

[0027] 10-main body; 20-driving part; 30-bearing part; 40-lifting part;

[0028] 11-first end; 12-second end; 31-supporting member; 32-support frame; 33-folding support frame; 34-first telescopic rod; 41-first lifting part; 42-second lifting part; 43-second telescopic rod; 44-connecting rod;

[0029] X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0031] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structures in the molding mold and molding method of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the meaning of "multiple" is more than two, and the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In existing wind turbines, blades are very critical components. After processing, existing blades are usually placed in a flat position in a storage area, waiting to be transported to the location where the wind turbine is to be installed for assembly. During storage, the blades usually need to be supported and fixed with corresponding flat brackets to prevent the blades from being damaged by collision due to external forces. Subsequently, before the blades are transported from the storage area to the installation location, the flat brackets need to be replaced with transport brackets that are convenient for transportation. During this process, the blades need to be at least partially lifted to a preset height to replace the brackets.

[0034] On this basis, the applicant found that as the capacity of a single wind turbine increases, the size of its blades also increases. In order to lift the blades smoothly, the existing method of lifting the blades is usually to lift them with a special equipment crane, for example, to make the distance between them and the working surface greater than or equal to 500mm, and at the same time move the transport bracket to be replaced by a forklift or other tools, and then move the blades to the placed transport bracket by a crane. The processing efficiency is low, and the processing cost required for renting special lifting equipment is high.

[0035] In order to solve the above problems, an embodiment of the present application provides a lifting device, which can replace the original lifting method using a crane and lift the blade to a preset height through its own lifting, thereby improving processing efficiency and reducing processing costs.

[0036] It can be understood that the following embodiments of the present application only illustrate the application of the manufacturing method to the web in a wind turbine blade as an example, but the application of the manufacturing method provided in the embodiments of the present application is not limited to the following embodiments, and can also be used in other situations where there are negative angles in the mold used in the infusion molding process that are difficult to demold, and to protect them.

[0037] In order to better understand this application, Figures 1 to 3 The lifting device provided in the embodiment of the present application is described in detail.

[0038] Please also read Figures 1 to 3 , Figure 1 is a schematic diagram of the structure of a lifting device provided by an embodiment of the present application, Figure 2 is a structural schematic diagram of a lifting device provided by another embodiment of the present application, Figure 3 It is a structural schematic diagram of a lifting device provided in yet another embodiment of the present application.

[0039] In the first aspect, according to an embodiment of the present application, a lifting device 100 is proposed, which is applied to a blade and includes: a main body 10; a driving part 20, which is arranged on one side of the main body 10 in a first direction X, and the driving part 20 can drive the lifting device 100 to move; a bearing part 30, which is arranged on the side of the main body 10 away from the driving part 20, and at least part of the surface shape of the bearing part 30 matches the surface shape of the blade; a lifting part 40, which is arranged on the main body 10, and along the first direction X, the orthographic projection of the lifting part 40 is staggered with the orthographic projection of the bearing part 30 and the orthographic projection of the driving part 20, and the extension size of the lifting part 40 in the first direction X is adjustable.

[0040] The embodiment of the present application provides a lifting device 100, which can be used to lift one end of a blade in a flat state to a preset height and stay there for a certain period of time, so as to facilitate operations such as replacement of a bracket. The lifting device 100 includes a main body 10, a driving part 20, a bearing part 30 and a lifting part 40, wherein the main body 10 is a main support structure and is used to provide connection and support fixation. The main body 10 can be made of metal material, for example, it can be made of a mesh structure formed by connecting multiple metal support rods to each other.

[0041] For example, the main body 10 may include a plurality of I-beams, and may be made of structural steel materials with high strength such as Q355. When designing the lifting device 100, the loads at various locations of the main body 10 may be first calculated by finite element analysis or the like, so that the corresponding strength parameters are satisfied. For example, the main body 10 may not be plastically deformed when carrying a weight less than or equal to 40T, and the maximum elastic deformation of the main body 10 under the aforementioned load state may be less than or equal to 5mm, so as to ensure that the main body 10 can provide stable and reliable support.

[0042] The driving unit 20 is disposed on one side of the main body 10 in the first direction X, and the first direction X may be the thickness direction of the main body 10. The driving unit 20 is used to drive the lifting device 100 to move as a whole by connecting with the main body 10. Optionally, the driving unit 20 may be provided with a power source such as a motor and a driving wheel, or the driving unit 20 may only be provided with components such as a driving wheel or a driving track for achieving movement, and then the operator applies a force to move the lifting device 100, and the present application does not make any specific limitation here.

[0043] The driving part 20 may be optionally integrated with the main body 10 to reduce the space required for the lifting device 100 as a whole. Alternatively, the driving part 20 may be connected to the main body 10 as a structure independent of the main body 10 by welding, detachable fastener connection, or the like to facilitate assembly and disassembly of the two.

[0044] The bearing part 30 is arranged on the side of the main body 10 away from the driving part 20, and has a bearing surface adapted to the blades. The bearing surface can be formed by using a hard material of a corresponding shape, or the bearing surface can be formed by using a flexible material that changes shape when it contacts the blades. The bearing part 30 and the main body 10 can be at least partially fixedly connected to make the structure more stable.

[0045] The lifting part 40 is connected to the main body 10 and can be optionally arranged on the side of the main body 10. The lifting part 40 can be extended or contracted along the first direction X to adjust the height of the carrying part 30 accordingly. In the first direction X, the maximum height to which the carrying surface of the carrying part 30 can be lifted can be adjusted by adjusting the length of the lifting part 40 after extension and the connection position between the main body 10 and the lifting part 40. For example, the maximum height to which the carrying surface can be lifted can be greater than or equal to 1.8m, and the lifting rate of the carrying part 30 can be greater than or equal to 1500mm / min, and the working noise of the lifting part 40 can be less than or equal to 70dB, so that the lifting device 100 has a larger application range and higher processing efficiency.

[0046] When using the lifting device 100 in the embodiment of the present application, the lifting device 100 can be moved to the bottom of the blade to be lifted by the driving unit 20, so that the bearing unit 30 and the preset position on the blade are aligned with each other, and the lifting unit 40 is controlled to make the main body 10 and the bearing unit 30 rise to contact with the blade. In this process, the relative position between the lifting bearing unit 30 and the blade can be manually or automatically corrected again by the driving unit 20. After accurate alignment, the lifting unit 40 is controlled to continue to extend, and the blade is lifted to a preset height through the bearing unit 30. Then the lifting unit 40 can be locked so that the blade stays in this position to facilitate the replacement of the bracket. After the replacement is completed, the lifting unit 40 is controlled to retract so that the blade falls on the replaced bracket, and then the lifting device 100 is withdrawn through the driving unit 20.

[0047] By adopting the lifting device 100 in the embodiment of the present application, the blade can be lifted to a preset height stably and conveniently, and then the bracket can be easily replaced, eliminating the original process step of using a crane, thereby improving processing efficiency and reducing processing costs.

[0048] In some optional embodiments, the bearing portion 30 includes a supporting member 31 and a plurality of supporting frames 32 relatively arranged in a second direction Y, the second direction Y intersects with the first direction X, the supporting member 31 is connected between the supporting frames 32, and the supporting member 31 and the main body 10 are spaced apart from each other.

[0049] The bearing part 30 in the lifting device 100 may include a supporting member 31 and a support frame 32 for making the supporting member 31. The aforementioned bearing surface arranged in accordance with the blade surface may be located on a side surface of the supporting member 31 away from the main body 10 and used to directly abut against the blade.

[0050] The support frame 32 is connected to the main body 10, and can be optionally extended along the first direction X or a direction close thereto in the working state. The two ends of the supporting member 31 are respectively connected to the two support frames 32. The heights of the two support frames 32 can be the same, and the size of the support frame 32 protruding from the main body 10 should be larger than the size of the supporting member 31 in the first direction X after the blades are abutted, so that the bottom of the supporting member 31 is separated from the main body 10, reducing the possibility of collision or pressure on the supporting member 31 causing non-conformity, and further improving the overall reliability of the lifting device 100.

[0051] In some optional embodiments, at least one of the multiple support frames 32 is a folding support frame 33, which is rotatably connected to the main body 10. The load-bearing portion 30 also includes a first telescopic rod 34, and both ends of the first telescopic rod 34 are respectively connected to the main body 10 and the folding support frame 33. The first telescopic rod 34 can drive the folding support frame 33 to rotate relative to the main body 10.

[0052] In an embodiment in which a support frame 32 and a supporting member 31 are provided, the supporting member 31 is connected between the support frames 32, and at least one of the support frames 32 for supporting the supporting member 31 can be a folding support frame 33, that is, a structural form that is rotatably connected to the main body 10 through a rotating shaft and can change the angle between the support frame 32 and the upper surface of the main body 10 by rotation.

[0053] Specifically, the bearing portion 30 further includes a first telescopic rod 34 connected between the main body 10 and the folding support frame 33. The length of the first telescopic rod 34 in its own extension direction is adjustable, and the folding support frame 33 can be driven to rotate relative to the main body 10 by the extension or contraction of the first telescopic rod 34. Optionally, the folding support frame 33 can be in a working state after the first telescopic rod 34 is extended, and rotate to an angle close to the main body 10, optionally parallel to each other, after the first telescopic rod 34 is contracted, so as to reduce the size of the position where the folding support frame 33 is provided in the first direction X.

[0054] By setting the support frame 32 as a folding support frame 33, the size of one end of the folding support frame 33 in the first direction X can be effectively reduced before lifting, thereby reducing the space height required for the lifting device 100 to move from the side of the blade to under the blade, thereby improving the applicability of the lifting device 100.

[0055] In some optional embodiments, the bearing portion 30 includes two support frames 32 , both of which are folding support frames 33 , and the first telescopic rod 34 is disposed on one side of the folding support frames 33 close to each other.

[0056] Optionally, in order to fix the supporting member 31, the bearing part 30 may include two supporting frames 32 arranged and arranged opposite to each other along the second direction Y. Both supporting frames 32 may be folding supporting frames 33 and may rotate toward each other. In this way, the size of the lifting device 100 as a whole in the first direction X can be reduced, so that the lifting device 100 can move more flexibly under the blade. At the same time, by rotating the two folding supporting frames 33 toward each other, the size of the lifting device 100 in the second direction Y can be reduced at the same time, further improving the flexibility of the movement of the lifting device 100.

[0057] In some optional embodiments, the supporting member 31 includes a flexible supporting fabric layer, and the flexible supporting fabric layer is made of any one of glass fiber, carbon fiber and polyester fiber.

[0058] The supporting member 31 in the embodiment of the present application may be made of a flexible material, and when it abuts against the blade, it is compressed and tightened to form a shape structure that follows the shape of the blade. Specifically, the supporting member 31 may include a flexible supporting fabric layer, and both ends of the fabric layer may have an annular structure and be sleeved on the supporting frames 32 on both sides to ensure a stable connection between the two.

[0059] Optionally, the flexible supporting fabric layer can be made of any one of glass fiber, carbon fiber and polyester fiber. The flexible supporting fabric layer made of these materials has good structural strength and low cost. It is not easy to cause damage to the blade surface while providing good load-bearing effect, and can improve the overall reliability of the lifting device 100.

[0060] It is understandable that the supporting member 31 may only include a flexible supporting cloth layer, or the supporting member 31 may also include other layer structures, such as a buffer layer with a certain elasticity, a cushioning layer, or a reinforcement layer with higher strength, etc. The present application does not make any specific limitation on this, and it is only necessary that the supporting member 31 can abut against the blade and be arranged in accordance with the shape.

[0061] In some optional embodiments, in the third direction Z, the width of the supporting member 31 is less than or equal to 1.8m, the first direction X, the second direction Y and the third direction Z are arranged to intersect each other, and in the second direction Y, the maximum spacing between the support frames 32 is greater than or equal to 3m.

[0062] In an embodiment in which a supporting member 31 and a supporting frame 32 are provided, in the second direction Y, the distance between the two ends of the supporting member 31, that is, the distance between the supporting frames 32 can be greater than or equal to 3m, so that the supporting member 31 can completely fit the lower half of the side surface of the blade, reducing the possibility of damage caused by the two side edges of the blade protruding from the supporting member 31, thereby improving the stability and reliability of the lifting device 100 during the lifting process.

[0063] At the same time, the width of the supporting member 31, that is, the dimension in the third direction Z, can be less than or equal to 1.8m. In existing blades, a region for structural reinforcement is usually provided. This region is used to set the structural parts required for moving the blades, such as the lifting ears required for lifting. By structurally reinforcing this region, the possibility of damage to the blades during movement can be reduced. Based on this, when using the lifting device 100, the width of the supporting member 31 can be made smaller than the extension dimension of the reinforcement region in the axial direction of the blade, so that the region where the supporting member 31 contacts the blade is located within the reinforcement region, thereby reducing the possibility of damage to the blades during the lifting process and improving the stability and reliability of the lifting device 100.

[0064] In some optional embodiments, the lifting device 100 includes a plurality of lifting portions 40 , which are arranged at intervals along the circumference of the main body 10 , and the plurality of lifting portions 40 all extend along the first direction X.

[0065] The lifting device 100 may be provided with a plurality of lifting parts 40 at the same time to provide a more sufficient lifting force, so that the lifting device 100 can carry heavier blades and improve applicability. At the same time, the plurality of lifting parts 40 may be arranged along the circumference of the main body 10, and may be connected to the outer peripheral side of the main body 10, so that the lifting parts 40 are easy to extend and retract while the main body 10 is subjected to uniform force, thereby reducing the possibility of interference between the lifting parts 40 and the bearing part 30 or the main body 10 during operation.

[0066] Optionally, each lifting portion 40 may have the same structural form and the same or similar parameters, so that the main body 10 and the bearing portion 30 are evenly stressed and move smoothly during the lifting or lowering process. In the embodiment where the main body 10 is circular or a polygonal shape close to a circle, the plurality of lifting portions 40 may be arranged at equal intervals along the circumference of the main body 10. In the embodiment where the main body 10 is rectangular, the plurality of lifting portions 40 may be respectively arranged at opposite ends of the main body 10 to further improve the stability during the lifting / lowering process.

[0067] In some optional embodiments, the main body 10 includes a first end 11 and a second end 12 relatively arranged in the second direction Y, and the multiple lifting parts 40 include two first lifting parts 41 arranged near the first end 11 and two second lifting parts 42 arranged near the second end 12; the first lifting part 41 is rotatably connected to the main body 10, and the first lifting part 41 can be rotated to extend along the second direction Y.

[0068] Optionally, in an embodiment in which the main body 10 is rectangular or polygonal that is close to a rectangle, the main body 10 may have a first end 11 and a second end 12 that are relatively arranged in the second direction Y, and the lifting portion 40 may include two first lifting portions 41 arranged at the first end 11 and two second lifting portions 42 arranged at the second end 12. The two first lifting portions 41 may be respectively arranged on both sides of the first end 11 in the third direction Z, and the second lifting portions 42 may also be respectively arranged on both sides of the second end 12 in the third direction Z, so that the lifting portion 40 supports the main body 10 more evenly and stably.

[0069] On this basis, the first lifting part 41 can be optionally connected to the main body 10 for rotation, specifically, the first lifting part 41 can rotate relative to the main body 10 in a plane perpendicular to the third direction Z, and can rotate from extending along the first direction X in the lifting / lowering working state to extending along the plane where the main body 10 is located when not in the working state, that is, extending along the second direction Y or a direction close thereto. Optionally, the connection point with the main body 10 can be located in the middle area of ​​the second lifting part 42.

[0070] Similar to the setting of the folding support frame 33, by rotating the first lifting part 41 to extend along the second direction Y, the extension dimension of the part of the lifting device 100 close to the first end 11 in the first direction X can be reduced, thereby facilitating the lifting device 100 to partially pass under the blade before lifting, so that the bearing part 30 can be moved to a position corresponding to the blade, thereby making the movement of the lifting device 100 more flexible and the use more convenient, thereby expanding the scope of application of the lifting device 100.

[0071] In some optional embodiments, the bearing portion 30 includes a supporting member 31 and a plurality of support frames 32 relatively arranged in the second direction Y, at least one of the plurality of support frames 32 is a folding support frame 33 ; the folding support frame 33 is arranged close to the first end 11 .

[0072] As mentioned above, the support frame 32 in the embodiment of the present application may include a folding support frame 33 that can rotate relative to the main body 10. In the embodiment where the folding support frame 33 is provided, the folding support frame 33 can be provided at the same end as the first lifting portion 41 close to the main body 10. For example, both can be provided at the first end 11 in the second direction Y.

[0073] Thus, when the first telescopic rod 34 is contracted and the folding support frame 33 is tilted close to the main body 10, the first lifting part 41 can be rotated to be parallel to the plane where the main body 10 is located, thereby further reducing the size of the first end 11 side in the first direction X, that is, reducing the height space required for one end of the lifting device 100, so that it can pass under the blade when the blade is not raised, thereby improving the flexibility of movement and the scope of application of the lifting device 100.

[0074] Optionally, in an embodiment where both support frames 32 are folding support frames 33 , the one with a smaller size in the first direction X after folding can be arranged at the first end 11 to minimize the size of the lifting device 100 on this side after folding.

[0075] In some optional embodiments, the lifting part 40 also includes a second telescopic rod 43, which is connected between the main body 10 and the second lifting part 42. The second telescopic rod 43 can drive the second lifting part 42 to move along a third direction Z relative to the main body 10. The first direction X, the second direction Y and the third direction Z are arranged to intersect in pairs.

[0076] Similar to the folding support frame 33, the lifting part 40 may also be provided with a second telescopic rod 43, and the second telescopic rod 43 is used to drive the second lifting part 42 to move relative to the main body 10 along the third direction Z. Optionally, when the second telescopic rod 43 is extended, the second lifting part 42 may be excited along a straight track in the third direction Z, or the second lifting part 42 may move along a curved track, and the present application does not make a specific limitation on this, and it is only necessary that the second lifting part 42 can be extended outward to have a certain distance from the main body 10.

[0077] Specifically, the second lifting part 42 and the main body 10 can be movably connected to each other through a guide rail, and then the second lifting part 42 is driven to move by the second telescopic rod 43. Optionally, the guide rail can extend along the third direction Z or a direction close thereto. Alternatively, the second lifting part 42 can be rotatably connected to the main body 10 through a connecting rod 44, a rotating shaft, etc., and extend along a curved track according to the shape of the connecting rod 44, etc.

[0078] By arranging the second telescopic rod 43 to be movable along the third direction Z relative to the main body 10, the two second lifting parts 42 on both sides can have a certain distance from the main body 10 in the working state, that is, the distance between the two second lifting parts 42 can be increased, so that the support of the lifting part 40 to the main body 10 is more stable and reliable, thereby improving the overall stability of the lifting device 100 during the lifting / lowering process.

[0079] In some optional embodiments, the lifting part 40 also includes a connecting rod 44, one end of which is connected to the second lifting part 42, and the other end of the connecting rod 44 is rotatably connected to the main body 10; the second telescopic rod 43 is connected between the second end 12 and the second lifting part 42.

[0080] Optionally, in order to enable the second lifting part 42 to move relative to the main body 10 along the third direction Z, the second lifting part 42 can be rotatably connected to the outer circumference of the main body 10 through the connecting rod 44, and the rotation of the second lifting part 42 is driven and controlled by the second telescopic rod 43. When entering the working state, the second telescopic rod 43 extends to push the second lifting part 42 outward, and the second lifting part 42 moves along an arc trajectory through the connecting rod 44.

[0081] Therefore, after the second lifting part 42 moves to the preset position, the second telescopic rod 43, the outer peripheral side wall of the main body 10 and the connecting rod 44 can form a right-angled triangle structure to stabilize the relative positions of the three, thereby making the connection relationship and the relative position between the second lifting part 42 and the main body 10 stable and reliable, thereby improving the lifting stability of the second lifting part 42 and the overall reliability of the lifting device 100.

[0082] In some optional embodiments, the two first lifting portions 41 and the two second lifting portions 42 are symmetrically arranged with respect to a reference plane, and the reference plane is perpendicular to the third direction Z.

[0083] The lifting part 40 in the embodiment of the present application includes a first lifting part 41 and a second lifting part 42 which are respectively located at opposite ends of the main body 10 and are arranged in pairs, wherein the main body 10 may be rectangular or nearly rectangular. Further, taking the second lifting part 42 as an example, the two second lifting parts 42 may be arranged relative to each other and correspond to each other in the third direction Z. Specifically, the two second lifting parts 42 may be arranged in plane symmetry with respect to the reference plane. When moving, the two second lifting parts 42 may move in opposite directions at the same time and speed. After moving to the working position, the two second lifting parts 42 may still be symmetrical with respect to the reference plane, so that the second lifting parts 42 can evenly and stably apply a lifting force to the second end 12, so that the main body 10 drives the bearing part 30 to stably lift the blade, and reduce the possibility that the second end 12 is easily tilted due to the different spacing between the two second lifting parts 42 and the main body 10.

[0084] The arrangement and effect of the first lifting part 41 are the same as those of the second lifting part 42, and will not be described in detail in this embodiment. Optionally, the symmetric plane of the first lifting part 41 and the symmetric plane of the second lifting part 42 can be the same reference plane that overlaps with each other, and the main body 10 can also be arranged in a plane-symmetrical manner with respect to the reference plane, so as to further make the lifting device 100 more balanced as a whole and more stable in the working state.

[0085] In some optional embodiments, the driving unit 20 includes a driving motor, a control module, and a plurality of driving wheels. The driving motor is connected to the driving wheels, and the control module is communicatively connected to the driving motor.

[0086] Optionally, the driving part 20 for achieving movement in the lifting device 100 may include a driving motor, a control module and a plurality of driving wheels. For example, more than four driving wheels arranged in an array may be adaptively adopted according to the size of the main body 10, and each driving wheel is rotatably connected to the main body 10 respectively.

[0087] The drive motor and the drive wheel can be directly or indirectly connected by a connecting shaft, a transmission belt, etc., and the rotation direction and rotation speed of each drive wheel can be controlled by the drive motor. The control module can be optionally arranged on the main body 10 and located at a position convenient for the user to operate. The control module is connected to the drive motor in communication, that is, the two can be directly connected by wiring, or connected by transmitting and receiving signals through an antenna.

[0088] Optionally, the entire drive unit 20 can adopt the structure of an AGV (Automated Guided Vehicle), realize the automatic movement or remote guidance control of the lifting device 100 through intelligent guidance technology, and can realize functions such as automatic obstacle avoidance, further improving the practicality and processing efficiency of the lifting device 100. For example, the drive unit 20 can be used as an independent system, and the main body 10 and other components are installed on the drive unit 20; or, the drive unit 20 can also be integrated into the overall system of the lifting device 100, and the movement parameters of the drive unit 20 and the lifting of the lifting unit 40 can be controlled simultaneously through the same control module to further improve the processing efficiency.

[0089] In some optional embodiments, the lifting portion 40 includes a telescopic hydraulic cylinder.

[0090] The lifting device 100 in the embodiment of the present application has a lifting part 40 for achieving lifting. The lifting part 40 can adopt the structure of a telescopic hydraulic cylinder. The telescopic hydraulic cylinder can provide a longer working stroke and a larger lifting force, and its operation is stable. Through the cooperation of the hydraulic pump with valve structures such as the directional control valve, the pressure control valve and the flow control valve, the flow direction, pressure and flow of the hydraulic oil can be conveniently and accurately controlled, and then the lifting speed, lifting distance and other parameters of the lifting part 40 can be well controlled, thereby further improving the reliability of the lifting device 100.

[0091] Optionally, the lifting device 100 may include a plurality of lifting parts 40, and these lifting parts 40 may all include telescopic hydraulic cylinders and use the same parameters, so that the overall operation of the lifting device 100 is more stable and the control is more convenient.

[0092] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lifting device, applied to a blade, characterized in that: include: Main body; A driving part, disposed on one side of the main body in the first direction, and capable of driving the lifting device to move; A bearing portion, arranged on a side of the main body away from the driving portion, wherein at least a portion of the surface shape of the bearing portion matches the surface shape of the blade; The lifting part is arranged on the main body, and along the first direction, the orthographic projection of the lifting part is staggered with the orthographic projection of the bearing part and the orthographic projection of the driving part, and the extension size of the lifting part in the first direction is adjustable.

2. The lifting device according to claim 1, characterized in that: The bearing portion includes a supporting member and a plurality of supporting frames arranged relatively to each other in a second direction, wherein the second direction intersects with the first direction, the supporting member is connected between the supporting frames, and the supporting member and the main body are arranged at intervals from each other.

3. The lifting device according to claim 2, characterized in that: At least one of the multiple support frames is a folding support frame, which is rotatably connected to the main body. The bearing part also includes a first telescopic rod, and both ends of the first telescopic rod are respectively connected to the main body and the folding support frame. The first telescopic rod can drive the folding support frame to rotate relative to the main body.

4. The lifting device according to claim 3, characterized in that: The bearing portion includes two support frames, both of which are folding support frames, and the first telescopic rod is arranged on one side of the folding support frames close to each other.

5. The lifting device according to claim 2, characterized in that: The supporting member includes a flexible supporting fabric layer, and the flexible supporting fabric layer is made of any one of glass fiber, carbon fiber and polyester fiber.

6. The lifting device according to claim 2, characterized in that: In the third direction, the width of the supporting member is less than or equal to 1.8 m, the first direction, the second direction and the third direction are arranged to intersect each other, and in the second direction, the maximum spacing between the support frames is greater than or equal to 3 m.

7. The lifting device according to claim 1, characterized in that: The lifting device includes a plurality of lifting parts, the lifting parts are arranged at intervals along the circumference of the main body, and the plurality of lifting parts all extend along the first direction.

8. The lifting device according to claim 7, characterized in that: The main body includes a first end and a second end arranged opposite to each other in a second direction, and the plurality of lifting parts include two first lifting parts arranged near the first end and two second lifting parts arranged near the second end; The first lifting portion is rotatably connected to the main body, and the first lifting portion can be rotated to extend along the second direction.

9. The lifting device according to claim 8, characterized in that: The bearing portion includes a supporting member and a plurality of supporting frames arranged opposite to each other in a second direction, at least one of the plurality of supporting frames being a folding supporting frame; The folding support frame is arranged close to the first end.

10. The lifting device according to claim 8, characterized in that: The lifting part also includes a second telescopic rod, which is connected between the main body and the second lifting part. The second telescopic rod can drive the second lifting part to move along a third direction relative to the main body, and the first direction, the second direction and the third direction are arranged to intersect each other.

11. The lifting device according to claim 10, characterized in that: The lifting part further comprises a connecting rod, one end of which is connected to the second lifting part, and the other end of which is rotatably connected to the main body; The second telescopic rod is connected between the second end and the second lifting part.

12. The lifting device according to claim 8, characterized in that: The two first lifting parts and the two second lifting parts are respectively arranged symmetrically with respect to a reference plane, and the reference plane is perpendicular to the third direction.

13. The lifting device according to claim 1, characterized in that: The driving unit includes a driving motor, a control module and a plurality of driving wheels. The driving motor is connected to the driving wheels, and the control module is communicatively connected to the driving motor.

14. The lifting device according to claim 1, characterized in that: The lifting part includes a telescopic hydraulic cylinder.

Images