sling

Abstract

The embodiment of the present application provides a kind of lifting appliance, for hoisting photovoltaic array semi-finished product, lifting appliance includes frame body and pickup mechanism, frame body includes at least one main beam and multiple support beams, main beam is along the first direction and is arranged, support beam extends along the second direction, multiple support beams are connected to main beam along the first direction, the first direction is intersected with the second direction, pickup mechanism is set on each support beam and is used to work and pick up photovoltaic array semi-finished product.Wherein, main beam includes at least two main beam sections, at least two main beam sections are sequentially connected to constitute main beam along the first direction, the first direction is the length direction of photovoltaic array semi-finished product.The lifting appliance in the embodiment of the present application can improve the flatness of main beam when hoisting photovoltaic array semi-finished product, so that pickup mechanism can be reliably connected with each area of photovoltaic array semi-finished product, improve the stability and reliability of hoisting.

Description

Technical Field

[0001] This application relates to the field of photoelectric conversion technology, and in particular to a lifting device. Background Technology

[0002] Photovoltaic (PV) devices convert solar energy into electrical energy. A PV device includes a PV support structure and multiple PV modules mounted on the support structure. The support structure supports the PV modules so that the surfaces of the PV modules can fully receive sunlight.

[0003] In the installation of photovoltaic (PV) devices, to improve installation efficiency, multiple PV modules are often assembled into a semi-finished PV array. This semi-finished array is then hoisted onto the PV support structure using lifting equipment. However, due to the significant weight of the semi-finished PV array, current lifting equipment may deform during installation, affecting the flatness of the main beam. This can lead to unreliable connections at some points, reducing the stability and reliability of the hoisting process. Utility Model Content

[0004] This application provides a lifting device that can improve the flatness of the main beam when lifting photovoltaic array semi-finished products, so that the picking mechanism can reliably connect with each area of ​​the photovoltaic array semi-finished products, thereby improving the stability and reliability of the lifting.

[0005] This application provides a lifting device for lifting semi-finished photovoltaic array products. The lifting device includes a frame body and a picking mechanism. The frame body includes at least one main beam and multiple support beams. The main beam extends along a first direction, and the support beams extend along a second direction. The multiple support beams are connected to the main beam at intervals along the first direction, and the first direction intersects the second direction. The picking mechanism is disposed on each support beam and is used to pick up the semi-finished photovoltaic array products. The main beam includes at least two main beam segments, which are sequentially connected along the first direction, which is the length direction of the semi-finished photovoltaic array product.

[0006] In some embodiments of this application, at least one pair of adjacent main beam segments are provided with an adjustment member for adjusting the flatness of the main beam in a first direction.

[0007] In some embodiments of this application, the adjusting member has a first adjusting surface and a second adjusting surface facing the ends of two adjacent main beam segments respectively, and there is an included angle between the first adjusting surface and the second adjusting surface.

[0008] In some embodiments of this application, two adjacent main beam segments are provided with connecting flanges at their opposite ends, and the two opposite connecting flanges are connected by connectors.

[0009] In some embodiments of this application, the main beam includes three main beam segments, and two lifting points are arranged at intervals along a first direction on the main beam, with the two lifting points respectively located near the connection between two adjacent main beam segments.

[0010] In some embodiments of this application, the frame body includes a plurality of main beams arranged at intervals along a second direction, and a support beam connects the plurality of main beams; at least one load-bearing beam for bearing functional components is also connected between two adjacent main beams, the load-bearing beam is connected between two adjacent main beams along the second direction, and the load-bearing beam is located near the connection point of adjacent main beam segments.

[0011] In some embodiments of this application, the lifting device further includes four sets of guide components arranged at the four corners of the frame body; the guide components include a first guide rod extending along a first direction and a second guide rod extending along a second direction, the first guide rod and the second guide rod being perpendicularly connected, and the first guide rod or the second guide rod being connected to the frame body; a first guide member extending along the first direction and rotating relative to the first guide rod is provided on the first guide rod, and a second guide member extending along the second direction and rotating relative to the second guide rod is provided on the second guide rod.

[0012] In some embodiments of this application, the picking mechanism includes multiple suction cups arranged at intervals along a second direction on each support beam. The suction cups are connected to a vacuum pump via connecting pipes for adsorption. The photovoltaic array semi-finished product has multiple photovoltaic modules. At least some suction cups on two adjacent support beams constitute a suction cup group for adsorbing the same photovoltaic module. One or more suction cup groups are provided on two adjacent support beams along the second direction. The two adjacent support beams are respectively a first support beam and a second support beam. Some suction cups of the suction cup group are connected to a first passage, and other suction cups are connected to a second passage. At least one suction cup connected to the first passage is located on the first support beam and at least one is located on the second support beam. At least one suction cup connected to the second passage is located on the first support beam and at least one is located on the second support beam. The first passage and the second passage of each suction cup group are controlled independently, or the first passage and the second passage of the suction cup group located on the same support beam are controlled independently together.

[0013] In some embodiments of this application, the pickup mechanism includes two vacuum pumps, each of which is connected to a suction cup via a connecting pipe assembly.

[0014] In some embodiments of this application, the pickup mechanism further includes multiple air intake valves, which are correspondingly disposed in each of the first passage and the second passage; the air intake valves are also provided with filters, which are used to filter the gas entering the first passage and / or the second passage through the air intake valves.

[0015] In some embodiments of this application, the intake valve and / or vacuum pump are covered with a rain cover.

[0016] The lifting device provided in the embodiments of this application includes a frame body and a picking mechanism. The frame body includes at least one main beam and multiple support beams. The main beam extends along the length of the photovoltaic array semi-finished product, and the multiple support beams are spaced apart on the main beam along its extension direction. The picking mechanism is disposed on each support beam, thereby connecting with multiple positions along the length of the photovoltaic array semi-finished product to achieve the picking of the photovoltaic array semi-finished product. Furthermore, the main beam of the lifting device in this embodiment includes at least two main beam segments. By sequentially connecting at least two main beam segments, compared to a one-piece beam structure, this split structure design significantly reduces the difficulty of processing and manufacturing. It allows for more controllable forming of each main beam segment and adjustment of the connection between adjacent main beam segments, improving the flatness of the main beam after lifting the photovoltaic array semi-finished product, thus ensuring the flatness of the entire lifting device. This enables the picking mechanism to reliably connect with each area of ​​the photovoltaic array semi-finished product, improving the reliability of the photovoltaic array semi-finished product lifting. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0018] Figure 1 The present application provides schematic diagrams of the structure of photovoltaic devices according to some embodiments;

[0019] Figure 2 The present application provides a schematic diagram of the structure of a photovoltaic array semi-finished product according to some embodiments;

[0020] Figure 3 The present application shows a schematic diagram of the structure of a lifting device provided in some embodiments;

[0021] Figure 4 It shows Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 A front view of a wedge block provided in some embodiments of this application is shown;

[0023] Figure 6 A side view of an adjustment element provided in some embodiments of this application is shown;

[0024] Figure 7 This application shows a schematic diagram of the frame body of a lifting device provided in some embodiments;

[0025] Figure 8 It shows Figure 3 Enlarged view of point B in the middle;

[0026] Figure 9A front view of a transport vehicle storing photovoltaic array semi-finished products, provided in some embodiments of this application, is shown;

[0027] Figure 10 This application provides a schematic diagram of the structure of a suction cup assembly for adsorbing photovoltaic modules according to some embodiments;

[0028] Figure 11 It shows Figure 3 Enlarged view of point C in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 - Lifting equipment; 200 - Photovoltaic support frame; 300 - Semi-finished photovoltaic array; 310 - Photovoltaic modules; 320 - Purlins; 330 - Support beams; 400 - Transfer vehicles;

[0031] 1-Framework main body;

[0032] 11-Main beam; 111-Main beam segment; 111a-First main beam segment; 111b-Second main beam segment; 111c-Third main beam segment; 112-Connecting flange; 112a-First connecting flange; 112b-Second connecting flange;

[0033] 12-Support beam; 12a-First support beam; 12b-Second support beam;

[0034] 13-Adjusting component; 131-Third connecting hole;

[0035] 14 - Lifting point; 14a - First lifting point; 14b - Second lifting point;

[0036] 15-Bearing beam; 151-First sub-bearing beam; 152-Second sub-bearing beam;

[0037] 16-Guide assembly; 161-First guide rod; 162-Second guide rod; 163-Connecting rod; 164-First guide element; 165-Second guide element;

[0038] 17-Electrical control box;

[0039] 2-Pickup mechanism; 21-Suction cup; 21a-First suction cup; 21b-Second suction cup; 21c-Third suction cup; 21d-Fourth suction cup; 22-Vacuum pump; 23-Inlet valve; 24-Filter;

[0040] 3-Storage cable assembly; 31-First storage segment; 32-Second storage segment;

[0041] S1 - First adjustment surface; S2 - Second adjustment surface; T1 - First passage; T2 - Second passage;

[0042] X - First direction; Y - Second direction; Z - Lifting direction. Detailed Implementation

[0043] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0044] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] Please see Figure 1 , Figure 1 A schematic diagram of the structure of a photovoltaic device provided in some embodiments of this application is shown.

[0047] The photovoltaic device includes a photovoltaic support 200 and a photovoltaic array semi-finished product 300 mounted on the photovoltaic support 200. The photovoltaic array semi-finished product 300 includes multiple photovoltaic modules 310.

[0048] The photovoltaic support bracket 200 is used to support the photovoltaic array semi-finished product 300. For example, the photovoltaic support bracket 200 may include columns and diagonal braces. The columns can be pre-installed on pile foundations, the ground, buildings, etc., and the diagonal braces can be fixed to the columns. The photovoltaic modules 310 are mounted on the columns and diagonal braces so that the photovoltaic modules 310 are spaced apart from the ground, buildings, etc. The columns and diagonal braces can provide a reference surface that is inclined relative to a horizontal surface as needed. The photovoltaic modules 310 mounted on the photovoltaic support bracket 200 can extend within this reference surface so that the surface of the photovoltaic module 310 receiving sunlight is adapted to the solar altitude angle, so that the surface of the photovoltaic module 310 can fully receive sunlight.

[0049] The photovoltaic array semi-finished product 300 can collect solar energy through photovoltaic modules 310 and convert solar energy into electrical energy. The photovoltaic array semi-finished product 300 includes multiple photovoltaic modules 310, which are arranged in a certain form and fixed together by fixing means, such as, but not limited to, connecting and fixing via at least one connecting beam provided on the back of the photovoltaic modules 310.

[0050] Figure 2 A non-limiting example of a photovoltaic array semi-finished product 300 is shown. The connecting beam includes a plurality of purlins 320 and a plurality of support beams 330. The purlins 320 are spaced apart and arranged in parallel, and the support beams 330 are also spaced apart and arranged in parallel. The purlins 320 and support beams 330 intersect and overlap to form a frame. A plurality of photovoltaic modules 310 are arranged in an array and installed on the frame formed by the purlins 320 and support beams 330, thereby constituting the photovoltaic array semi-finished product 300. In other examples, the connecting beam may also include a main axis capable of allowing the photovoltaic modules 310 to rotate about it.

[0051] To improve installation efficiency during the photovoltaic (PV) installation process, multiple PV modules 310 can be assembled into a PV array semi-finished product 300, which is then hoisted onto the PV support 200. The assembly of the PV array semi-finished product 300 can be performed in a factory. Compared to on-site assembly for outdoor PV installations, this process relies on specialized equipment, which helps improve installation accuracy and efficiency.

[0052] After the photovoltaic array semi-finished product 300 is assembled, a special lifting tool is needed to hoist the assembled photovoltaic array semi-finished product 300 onto the photovoltaic bracket 200. The lifting tool is equipped with multiple working points, which are respectively coordinated with different positions of the photovoltaic array semi-finished product 300. However, the photovoltaic array semi-finished product 300 currently used can include 26 photovoltaic modules 310, which are arranged in two rows, with 13 photovoltaic modules 310 in each row connected sequentially along the length direction. In other words, the photovoltaic array semi-finished product 300 is large in both weight and length. To grip each photovoltaic module 310, the lifting device also needs to be very large, especially in length, reaching over ten meters in length. When using this lifting device to lift the photovoltaic array semi-finished product 300, the lifting device 100 may deflect downwards due to its own weight and the weight of the photovoltaic array semi-finished product 300, especially in the length direction. This can lead to some connection points failing to reliably connect with the photovoltaic array semi-finished product 300, affecting the stability and reliability of the lifting process. To solve the above problems, this application provides a new lifting device, which is described below in conjunction with the appendix. Figures 1 to 7 The lifting device 100 of each embodiment of this application will be described in detail.

[0053] Please refer to the following: Figures 1 to 3 , Figure 3 A schematic diagram of the structure of a lifting device 100 provided in some embodiments of this application is shown.

[0054] This application provides a lifting device 100 for lifting a photovoltaic array semi-finished product 300. The lifting device 100 includes a frame body 1 and a picking mechanism 2. The frame body 1 includes at least one main beam 11 and multiple support beams 12. The main beam 11 extends along a first direction X, and the support beams 12 extend along a second direction Y. The multiple support beams 12 are connected to the main beam 11 at intervals along the first direction X. The first direction X intersects the second direction Y. The picking mechanism 2 is disposed on each support beam 12 and is used to pick up the photovoltaic array semi-finished product 300. The main beam 11 includes at least two main beam segments 111, which are sequentially connected along the first direction X to form the main beam 11. The first direction X is the length direction of the photovoltaic array semi-finished product 300.

[0055] The lifting device 100 in this embodiment includes a frame body 1 and a picking mechanism 2. The frame body 1 includes at least one main beam 11 and multiple support beams 12. The main beam 11 extends along the length direction of the photovoltaic array semi-finished product 300. The multiple support beams 12 are spaced apart on the main beam 11 along the extension direction of the main beam 11. The picking mechanism 2 is disposed on each support beam 12, thereby connecting with multiple positions of the photovoltaic array semi-finished product 300 along the length direction through the picking mechanism 2, so as to realize the operation of picking up the photovoltaic array semi-finished product 300. Furthermore, in this embodiment, the main beam 11 of the lifting device 100 includes at least two main beam segments 111, which are sequentially connected. Compared with the integral beam structure, this split structure design can significantly reduce the difficulty of processing and manufacturing. Not only is the forming of each main beam segment 111 more controllable, but the connection between adjacent main beam segments 111 can also be adjusted, thereby improving the flatness of the main beam 11 after lifting the photovoltaic array semi-finished product 300, thus ensuring the flatness of the entire lifting device. This allows the picking mechanism 2 to reliably connect with each area of ​​the photovoltaic array semi-finished product 300, improving the reliability of lifting the photovoltaic array semi-finished product 300.

[0056] The flatness of the main beam 11 refers to the macroscopic height deviation of all points on the main beam 11 relative to an ideal plane. Since the load applied to the main beam 11 by the lifting points during hoisting is a concentrated force, and the main beam 11 is too long and too large, making it prone to deformation under its own weight, this embodiment of the application divides the main beam 11 into multiple main beam segments 111 compared to a single-piece main beam 11. During the on-site splicing of the main beam segments 111, error compensation can be achieved by adjusting adjacent segments, making it easier to ensure that all points of the main beam segments 111 along the first direction X are located in the same plane. This allows the flatness of the main beam 11 to be adjusted before hoisting, enabling each picking mechanism 2 to reliably connect with different positions of the photovoltaic array semi-finished product 300, thus improving the reliability of the photovoltaic array semi-finished product 300 hoisting.

[0057] In some alternative embodiments, at least one pair of adjacent main beam segments 111 are provided with an adjustment member for adjusting the flatness of the main beam 11 in the first direction X.

[0058] Understandably, the flatness of the main beam 11 can be adjusted by means of mechanical adjustment or stress compensation. For example, when stress compensation is used, the adjusting component 13 can be set as a prestressed tie rod to apply prestress to the main beam segment 111 through the external prestressed tie rod structure, so that the main beam 11 produces a precamber, thereby offsetting the deformation of the main beam 11 caused by its own weight, and thus improving the flatness of the main beam 11. Alternatively, mechanical adjustment can also be used. The adjusting component 13 can be set as an adjustable wedge block. For example, by setting an adjustable wedge block at the joint of adjacent main beam segments 111, a precamber can be actively applied to offset the deformation of the main beam 11 caused by its own weight, so that the main beam 11 can return to its linear shape under its own weight after being lifted, thus improving the flatness of the main beam 11.

[0059] Please see Figures 1 to 6 , Figure 4 It shows Figure 3 Enlarged view of point A in the middle. Figure 5 The following is a front view of a wedge block provided in some embodiments of this application. Figure 6 A side view of the adjustment element 13 provided in some embodiments of this application is shown.

[0060] When the adjusting member 13 is configured as an adjustable wedge block, in some optional embodiments, the adjusting member has a first adjusting surface S1 and a second adjusting surface S2 facing the ends of two adjacent main beam segments 111 respectively, and the first adjusting surface S1 and the second adjusting surface S2 have an included angle.

[0061] For ease of description, two adjacent main beam segments 111 are defined as the first main beam segment 111a and the second main beam segment 111b. The end of the first main beam segment 111a presses against the first adjustment surface S1, and the end of the second main beam segment 111b presses against the second adjustment surface S2. Since there is an angle between the first adjustment surface S1 and the second adjustment surface S2, after the first main beam segment 111a presses against the first adjustment surface S1 and the second main beam segment 111b presses against the second adjustment surface S2, there is also an angle between the first main beam segment 111a and the second main beam segment 111b. This creates a reverse camber that is opposite to the deformation of the main beam 11 under its own weight, thereby enabling the lifting device 100 to restore linearity when lifted, improving the flatness of the main beam 11.

[0062] Optionally, the main beam 11 may include two main beam segments 111, and the number of adjusting members 13 may be set to one. The adjusting member 13 is disposed between the two main beam segments 111 to achieve leveling of the two main beam segments 111. Alternatively, the main beam 11 may also include three, four, or even more main beam segments 111, with adjusting members 13 disposed between at least two main beam segments 111. The specific placement of the adjusting member 13 can be determined according to the bending position of the main beam 11. For example, when the main beam 11 shows a large bending deformation on one side after connection, adjusting members 13 are added between adjacent main beam segments 111 near that side for adjustment. In addition, adjusting members 13 with different sizes α can be selected according to the degree of bending; that is, the greater the bending deformation, the larger the α of the adjusting member 13 is selected for adjustment. Here, α refers to the included angle between the first adjusting surface S1 and the second adjusting surface S2.

[0063] It is understandable that the position of the adjusting component 13, i.e., the segment position of the main beam segment 111, can be adjusted according to the stress and deformation of the main beam 11 of the lifting device 100 when lifting the photovoltaic array semi-finished product 300. For example, when there is only one adjusting component 13, it can be positioned in the middle of the main beam 11 along the first direction X. When there are multiple adjusting components 13, under the same conditions, the included angle α between the first adjusting surface S1 and the second adjusting surface S2 of each adjusting component 13 can be reduced, and the degree of leveling can be improved through multiple small-amplitude adjustments.

[0064] In some alternative embodiments, two adjacent main beam segments 111 are provided with connecting flanges 112 at their opposite ends, and the two opposite connecting flanges 112 are connected by connectors.

[0065] The first main beam segment 111a has a first connecting flange 112a at its end, and multiple first connecting holes are provided through the first connecting flange 112a along the first direction X. The second main beam segment 111b has a second connecting flange 112b at its end, and multiple second connecting holes are provided on the second connecting flange 112b corresponding to the first connecting holes. The connecting element can be a bolt. When connecting the first main beam segment 111a and the second main beam segment 111b, the first connecting flange 112a of the first main beam segment 111a and the second connecting flange 112b of the second main beam segment 111b can be arranged facing each other. The adjusting element 13 is arranged between the first connecting flange 112a and the second connecting flange 112b along the first direction X, avoiding the first connecting holes and the second connecting holes, so that the connecting element can sequentially connect the first connecting holes of the first connecting flange 112a and the second connecting holes of the second connecting flange 112b to realize the connection of the two adjacent main beam segments 111.

[0066] In some embodiments, the adjusting member 13 may have a plurality of third connecting holes 131 extending along a first direction X. Multiple connecting members are sequentially inserted through the first connecting hole of the first connecting flange 112a, the third connecting hole 131 of the connecting members, and the second connecting hole of the second connecting flange 112b, to achieve the connection of two adjacent main beam segments 111. In other embodiments, the adjusting member 13 may not have the third connecting holes 131, but may be directly clamped between the first connecting flange 112a and the second connecting flange 112b to achieve the fixation of the adjusting member 13.

[0067] By connecting two adjacent main beam segments 111 through connecting flanges 112, a rigid node can be formed by pre-tightening high-strength bolts, thereby improving the connection stiffness between the main beam segments 111. At the same time, the first connecting flange 112a of the first main beam segment 111a can fit tightly with the first adjustment surface S1, and the second connecting flange 112b of the second main beam segment 111b can fit tightly with the second adjustment surface S2. Furthermore, the load is evenly transferred through multiple high-strength bolts, optimizing the stress distribution and improving the bearing capacity of the main beam 11.

[0068] In some alternative embodiments, each main beam segment 111 includes multiple beams arranged along the lifting direction of the lifting device 100, with the ends of the multiple beams disposed on the same connecting flange 112.

[0069] By designing the main beam segment 111 as a multi-layered beam, its weight can be reduced, thus lowering material costs. Furthermore, the weight of the lifting device 100 can also be reduced, allowing for the lifting of heavier photovoltaic array semi-finished products 300 under the same lifting load, thereby improving lifting reliability. In this embodiment, the lifting device 100, by incorporating adjusting members 13 between adjacent main beam segments 111, allows the main beam segment 111 to be designed as a multi-layered beam, reducing its weight while simultaneously overcoming the deformation problem caused by reduced stiffness of the main beam segment 111 through the adjusting members 13, thereby improving the lifting reliability of the lifting device 100.

[0070] Optionally, the main beam segment 111 may further include connecting beams, which connect adjacent beams along the lifting direction of the lifting device 100 to improve the rigidity of the main beam segment 111. Optionally, there may be multiple connecting beams, which are spaced apart along the first direction X, so that the beams of the main beam segment 111 can be connected by multiple connecting beams to further improve the rigidity of the main beam segment 111.

[0071] Please see Figures 1 to 7 , Figure 7 A schematic diagram of the frame body 1 of the lifting device 100 provided in some embodiments of this application is shown.

[0072] In some alternative embodiments, the main beam 11 includes three main beam segments 111, and two lifting points 14 are arranged at intervals along the first direction X on the main beam 11, with the two lifting points 14 respectively arranged close to the connection of two adjacent main beam segments 111.

[0073] Since the area near lifting point 14 is a critical region where the lifting device 100 bears concentrated loads, arranging lifting point 14 close to the connection between two adjacent main beam segments 111 allows the load to be directly transferred through lifting point 14, reducing the stress at the connection of the main beam segments 111. Furthermore, it increases the stiffness near lifting point 14, controlling the deformation of the main beam 11 and making it easier to ensure the flatness of the main beam 11 during lifting. In addition, by arranging two lifting points 14 at intervals along the first direction X on the main beam 11, the load can be evenly distributed through the two lifting points 14, while suppressing the eccentric loading and rotation of the lifting device 100. Moreover, by including three main beam segments 111 in the main beam 11, the number of segments of the main beam 11 can be reduced while adapting to the lifting points 14, improving the assembly and adjustment efficiency of the main beam 11.

[0074] It is understandable that when the main beam 11 includes three main beam segments 111, the three main beam segments 111 can be defined as a first main beam segment 111a, a second main beam segment 111b, and a third main beam segment 111c arranged sequentially along the first direction X, with the second main beam segment 111b positioned between the first main beam segment 111a and the third main beam segment 111c along the first direction X. The lifting point 14 may include a first lifting point 14a and a second lifting point 14b, with the first lifting point 14a positioned near the connection between the first main beam segment 111a and the second main beam segment 111b, and the second lifting point 14b positioned near the connection between the second main beam segment 111b and the third main beam segment 111c. The dimensions of the first main beam segment 111a, the second main beam segment 111b, and the third main beam segment 111c along the first direction X may be the same or different. The segment positions of the first main beam segment 111a, the second main beam segment 111b, and the third main beam segment 111c can be adjusted to correspond to the positions of the first lifting point 14a and the second lifting point 14b.

[0075] Optionally, the first lifting point 14a can be located on the first main beam segment 111a, and the second lifting point 14b can be located on the third main beam segment 111c, to increase the distance between the first lifting point 14a and the second lifting point 14b along the first direction X, thereby improving the reliability of the lifting operation. Taking the above example, the first lifting point 14a near the connection between the first main beam segment 111a and the second main beam segment 111b can be understood as the distance between the first lifting point 14a and the connection between the first main beam segment 111a and the second main beam segment 111b along the first direction X being less than the distance between the first lifting point 14a and the end of the first main beam segment 111a furthest from the second main beam segment 111b. Similarly, the second lifting point 14b near the connection between the second main beam segment 111b and the third main beam segment 111c can be understood as follows: in the first direction X, the distance between the second lifting point 14b and the connection between the second main beam segment 111b and the third main beam segment 111c is less than the distance between the second lifting point 14b and the end of the third main beam segment 111c away from the second main beam segment 111b.

[0076] In some alternative embodiments, the frame body 1 includes a plurality of main beams 11 spaced apart along the second direction Y, and support beams 12 connect the plurality of main beams 11. At least one load-bearing beam 15 for supporting functional components is also connected between two adjacent main beams 11. The load-bearing beam 15 is connected between two adjacent main beams 11 along the second direction Y, and the load-bearing beam 15 is located near the connection point of the adjacent main beam segments 111.

[0077] By setting multiple main beams 11 in the frame body 1, the structural strength of the frame body 1 can be improved. Each main beam 11 may include multiple main beam segments 111, and the connection points of the main beam segments 111 of each main beam 11 may be arranged facing each other along the second direction Y. The second direction Y may be the width direction of the photovoltaic array semi-finished product 300, so as to simplify the structure of the frame body 1.

[0078] Since the lifting device 100 can be equipped with functional components, the frame body 1 can include a load-bearing beam 15. The load-bearing beam 15 is arranged between adjacent main beams 11 along the second direction Y to support the functional components. The functional components can be at least one of the drive components or control components that control the picking mechanism 2 to pick up or release the photovoltaic array semi-finished product 300. When the load-bearing beam 15 supports the functional components, the weight of the functional components will act on the load-bearing beam 15. Therefore, by setting the load-bearing beam 15 close to the connection of the adjacent main beam segment 111, that is, by setting the load-bearing beam 15 in the area with high stiffness of the main beam 11, the deflection deformation of the main beam 11 is reduced, and it is easier to control the flatness of the main beam 11 during the lifting of the photovoltaic array semi-finished product 300, thereby improving the reliability of the lifting.

[0079] Optionally, the load-bearing beam 15 may include a first sub-load-bearing beam 151 and a second sub-load-bearing beam 152 arranged along the first direction X. Taking the main beam 11 as an example, which includes a first main beam segment 111a, a second main beam segment 111b, and a third main beam segment 111c, when the load-bearing beam 15 is arranged near the connection between the first main beam segment 111a and the second main beam segment 111b, the first sub-load-bearing beam 151 may be connected to the first main beam segment 111a of the two adjacent main beams 11 along the second direction Y, and the second sub-load-bearing beam 152 may be connected to the second main beam segment 111b of the two adjacent main beams 11 along the second direction Y, so that the functional components are supported synchronously by the first sub-load-bearing beam 151 and the second sub-load-bearing beam 152, thereby improving the reliability of the support.

[0080] Optionally, the number of supporting beams 15 can be set to two. In the first direction X, one supporting beam 15 is set near the connection between the first main beam segment 111a and the second main beam segment 111b, and the other supporting beam 15 is set near the connection between the second main beam segment 111b and the third main beam segment 111c. By setting two supporting beams 15, the functional components on the lifting device 100 can be distributed on the two supporting beams 15, so as to avoid the lifting device 100 being overloaded on an off-center basis and improve the reliability of the lifting device 100 in lifting the photovoltaic array semi-finished product 300.

[0081] In some alternative embodiments, at least one of the main beam 11, the support beam 12, and the load-bearing beam 15 is an aluminum alloy profile beam. Compared to a steel structure, by setting at least one of the main beam 11, the support beam 12, and the load-bearing beam 15 as an aluminum alloy structure, the weight of the frame body 1 can be significantly reduced, thereby reducing the weight of the lifting device 100. This allows for the lifting of heavier photovoltaic array semi-finished products 300 under the same lifting load, improving lifting reliability.

[0082] Please see Figures 1 to 9 , Figure 8 It shows Figure 3 Enlarged view at point B in the middle. Figure 9 The image shows a front view of a transport carrier 400 containing a photovoltaic array semi-finished product 300, provided in some embodiments of this application.

[0083] In some optional embodiments, the lifting device 100 further includes four sets of guide components 16 arranged at the four corners of the frame body 1. Since in some embodiments, the lifting device 100 needs to extend into the transfer carrier 400 containing the photovoltaic array semi-finished product 300, by providing guide components 16 at the four corners of the frame body 1 of the lifting device 100, during the process of the lifting device 100 extending into the transfer carrier 400, the four sets of guide components 16 at the four corners can contact the inner wall of the transfer carrier 400, guiding the lifting device 100 to move along the lifting direction, so that the lifting device 100 can accurately pick up the photovoltaic array semi-finished product 300. Furthermore, the guide components 16 can also reduce the risk of collision between the lifting device 100 and the transfer carrier 400 during the process of the lifting device 100 extending into and being removed from the transfer carrier 400, thereby increasing the service life of the lifting device 100.

[0084] Specifically, the guide assembly 16 includes a first guide rod 161 extending along a first direction X and a second guide rod 162 extending along a second direction Y. The first guide rod 161 and the second guide rod 162 are perpendicularly connected, and either the first guide rod 161 or the second guide rod 162 is connected to the frame body 1. A first guide member 164 extending along the first direction X and rotating relative to the first guide rod 161 is provided on the first guide rod 161, and a second guide member 165 extending along the second direction Y and rotating relative to the second guide rod 162 is provided on the second guide rod 162.

[0085] By including a first guide rod 161 and a second guide rod 162 in the guide assembly 16, the first guide rod 161 and the second guide rod 162 can be arranged in the same horizontal plane and vertically connected to each other, thereby enabling the position of the lifting device 100 along the first direction X and the second direction Y to be adjusted through the guide assembly 16, thus simplifying the structure of the guide assembly 16.

[0086] As an optional implementation, the second guide rod 162 may extend along the second direction Y and be connected to the frame body 1, while the first guide rod 161 may be connected to the end of the second guide rod 162 away from the frame body 1 and extend along the first direction X. Further, the guide assembly 16 may also include a connecting rod 163, which is inclined and connects the frame body 1 and the first guide rod 161, thereby forming a triangular stable structure, improving the structural strength of the guide assembly 16, and enhancing the reliability of the guidance.

[0087] Optionally, the first guide 164 and the second guide 165 can be configured as rollers. The rotation axis of the first guide 164 can be extended along the second direction Y, and the rotation axis of the second guide 165 can be extended along the first direction X. Thus, during the process of the lifting device 100 extending into the transfer carrier 400 and the lifting device 100 being taken out of the transfer carrier 400, the rollers can make rolling friction contact with the inner wall surface of the transfer carrier 400, thereby improving the guiding accuracy and reducing the wear on the first guide 164 and the second guide 165, and improving the service life of the guide assembly 16.

[0088] Please see Figures 1 to 10 , Figure 10 A schematic diagram of the structure of a suction cup assembly for adsorbing photovoltaic modules 310 provided in some embodiments of this application is shown.

[0089] In some optional embodiments, the picking mechanism 2 includes multiple suction cups 21 disposed on each support beam 12 and spaced apart along the second direction Y. The suction cups 21 are connected to a vacuum pump 22 via connecting pipes for adsorption. By providing a vacuum pump 22, which is connected to each suction cup 21 via connecting pipes, air can be extracted from the inside of the suction cup 21 and the sealed space formed in contact with the object, creating a negative pressure environment inside. This generates adsorption force to firmly fix the photovoltaic array semi-finished product 300, reducing damage to the photovoltaic array semi-finished product 300. Of course, in some other embodiments, the picking mechanism 2 can also use various methods such as electromagnetic adsorption and clamps for picking.

[0090] Specifically, the photovoltaic array semi-finished product 300 has multiple photovoltaic modules 310. At least some of the suction cups 21 on two adjacent support beams 12 form a suction cup group for adsorbing the same photovoltaic module 310. One or more suction cup groups are provided on two adjacent support beams 12 along the second direction Y. By installing and integrating multiple suction cups 21 arranged in an array through frame components, and by reasonably arranging some of the suction cups 21 on two adjacent support beams 12 to form a suction cup group, the photovoltaic array semi-finished product can be grabbed and lifted at one time for assembly operations, improving the installation efficiency of the photovoltaic panels while ensuring the reliability of the photovoltaic panel hoisting process.

[0091] Furthermore, two adjacent support beams 12 are respectively the first support beam 12a and the second support beam 12b. A portion of the suction cups 21 in the suction cup group are connected to the first passage T1, and another portion of the suction cups 21 are connected to the second passage T2. At least one of the suction cups 21 connected to the first passage T1 is located on the first support beam 12a, and at least one is located on the second support beam 12b. Similarly, at least one of the suction cups 21 connected to the second passage T2 is located on the first support beam 12a, and at least one is located on the second support beam 12b. For example, each suction cup group may include a first suction cup 21a and a second suction cup 21b located on the first support beam 12a, and a third suction cup 21c and a fourth suction cup 21d located on the second support beam 12b. The first suction cup 21a and the third suction cup 21c are located in the first passage T1, and the second suction cup 21b and the fourth suction cup 21d are located in the second passage T2. Each photovoltaic module 310 has a suction cup 21 connected to a different path. In other words, half of the suction cups 21 on each photovoltaic module 310 have a rated load capacity, so even if up to half of the suction cups 21 fail, the module can still be hoisted normally, resulting in a higher fault tolerance rate.

[0092] In some embodiments, the first path T1 and the second path T2 of each suction cup group are controlled independently, that is, the first path T1 and the second path T2 of each suction cup group are controlled independently, and the suction cup groups will not affect each other. The first path T1 and the second path T2 of the same suction cup group will not affect each other, so that a failure of the first path T1 and the second path T2 of any suction cup group will not affect other suction cup groups, and the fault tolerance rate is higher.

[0093] Alternatively, the first path T1 of the suction cup groups located on the same support beam 12 can be controlled independently, and the second path T2 can be controlled independently. That is, in addition to each suction cup group being controlled independently, the suction cup groups on the same support beam 12 can also be controlled independently together. For example, between the first suction cup group 21a and the second suction cup group 21b located on the same support beam 12, the first path T1 of the first suction cup group 21a and the first path T1 of the second suction cup group 21b can be controlled together, and the second path T2 of the first suction cup group 21a and the second path T2 of the second suction cup group 21b can be controlled together. Thus, the suction cup groups on different support beams 12 will not affect each other, and the first path T1 and the second path T2 of each suction cup group on the same support beam 12 will not affect each other. This can improve the fault tolerance rate, and compared with the form of controlling each suction cup group independently, it can simplify the control logic, reduce the control difficulty and cost.

[0094] As an optional implementation, the pickup mechanism 2 may include a sensor, a solenoid valve, and a control system. The sensor can be used to detect the vacuum pressure of each suction cup 21. Each independently controlled passage is equipped with a solenoid valve. The control system is used to control the opening and closing of the solenoid valve according to the vacuum pressure detected by the sensor, so as to realize independent control between the passages.

[0095] In some alternative embodiments, the pickup mechanism 2 includes two vacuum pumps 22, each of which is connected to a suction cup 21 via a connecting pipe assembly.

[0096] By setting up two vacuum pumps 22, each connected to the suction cups 21 via connecting pipes, the two vacuum pumps 22 can operate independently. During routine hoisting, only one vacuum pump 22 can be in operation, while the other remains on standby. When the operating vacuum pump 22 malfunctions, its performance deteriorates and cannot meet hoisting requirements, or scheduled maintenance is needed, the standby vacuum pump 22 can be immediately switched on to ensure a continuously stable vacuum environment for the entire system, uninterrupted production processes, reduced failure rates, and a significant decrease in the probability of unplanned downtime. Furthermore, in some applications, both vacuum pumps 22 can be activated simultaneously to increase the adsorption force on the photovoltaic array semi-finished product 300, enabling stable hoisting of heavier photovoltaic array semi-finished products 300.

[0097] Optionally, the two vacuum pumps 22 can be respectively installed on the two load-bearing beams 15 on the frame body 1 to achieve support and fixation of the vacuum pumps 22.

[0098] In some optional embodiments, the pickup mechanism 2 further includes a plurality of air intake valves 23, which are respectively disposed in each first passage T1 and second passage T2. The air intake valves 23 are also provided with filters 24, which are used to filter the gas entering the first passage T1 and / or the second passage T2 through the air intake valves 23.

[0099] When the lifting device 100 needs to release the photovoltaic array semi-finished product 300 after lifting it, the air inlet valve 23 can be opened to allow atmospheric air to automatically enter the suction cup 21, increasing the pressure inside the suction cup 21, effectively eliminating residual vacuum, and ensuring the separation of the suction cup 21 of the lifting device 100 from the photovoltaic array semi-finished product 300. Furthermore, by installing a filter 24 in the air inlet valve 23, dust and other solid particles can be intercepted, reducing damage to the picking mechanism 2 and extending the service life of the lifting device 100.

[0100] In some alternative embodiments, the intake valve 23 and / or the vacuum pump 22 are covered with a rain cover.

[0101] To address the outdoor use requirements of the lifting device 100, by providing rain covers to the air inlet valve 23 and / or vacuum pump 22, the risk of electrical and mechanical failures can be reduced, the safe operating time of the air inlet valve 23 and vacuum pump 22 can be increased, and maintenance costs can be reduced. Optionally, each air inlet valve 23 and vacuum pump 22 can be covered with a rain cover to further improve the safe operating time of the air inlet valve 23 and vacuum pump 22.

[0102] As an alternative implementation, the rain cover can be configured as a fixed, fully enclosed rain cover, for example, it can be welded from stainless steel or aluminum alloy sheets to effectively prevent rainwater intrusion through the fully enclosed structure, and the sealed design can reduce the corrosion of equipment by sand, salt spray, etc.

[0103] Please see Figures 1 to 11 , Figure 11 It shows Figure 3 Enlarged view of point C in the middle.

[0104] During the operation of the lifting device 100, electrical energy or signal exchange is required to the drive motor, vacuum pump 22, solenoid valve, etc. of the lifting device 100 via cables to ensure precise execution of lifting, translation, and rotation actions. For cable management, in some optional embodiments, the lifting device 100 also includes a cable storage assembly 3 for retracting and extending the supply cable. The cable storage assembly 3 is connected to the frame body 1. The cable storage assembly 3 can, for example, use a spring reel for cable storage, and its anti-torsion and anti-bending design improves the cable's fatigue life.

[0105] Optionally, the electrical control box 17 can be installed on a load-bearing beam 15 of the frame body 1. The electrical control box 17 is used to send commands to control the operation of the lifting device 100. The cable storage assembly 3 can be set close to the electrical control box 17 so that the cable can be connected to the electrical control box 17 after extending out of the cable storage assembly 3, simplifying the cable installation path.

[0106] In some embodiments, the cable storage assembly 3 includes a first storage segment 31 and a second storage segment 32. The first storage segment 31 and the second storage segment 32 are connected to form a hollow structure with an inlet. The first storage segment 31 is disposed on the side near the inlet, and the inner diameter of the first storage segment 31 gradually increases along the direction near the inlet.

[0107] The second storage section 32 serves to store cables. By incorporating a first storage section 31 on the second storage section 32, and ensuring that the inner diameter of the first storage section 31 gradually increases towards the cable inlet, a bucket-shaped structure is formed. This facilitates the entry of cables into the cable storage assembly 3, reducing the difficulty of cable entry. Furthermore, it reduces the weight of the cable storage assembly 3 and the lifting device 100, thereby improving the performance of the lifting device 100.

[0108] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This 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 spreader, characterized in that, The lifting device is used for hoisting semi-finished photovoltaic arrays and includes: The frame body includes at least one main beam and multiple support beams. The main beam extends along a first direction, and the support beams extend along a second direction. The multiple support beams are connected to the main beam at intervals along the first direction, and the first direction intersects the second direction. A picking mechanism is provided on each of the support beams and is used to pick up the photovoltaic array semi-finished product. The main beam comprises at least two main beam segments, which are sequentially connected along the first direction to form the main beam. The first direction is the length direction of the photovoltaic array semi-finished product.

2. The spreader of claim 1, characterized in that At least one pair of adjacent main beam segments are provided with an adjustment element for adjusting the flatness of the main beam in a first direction.

3. The spreader of claim 2, wherein The adjusting member has a first adjusting surface and a second adjusting surface facing the ends of two adjacent main beam segments respectively, and there is an included angle between the first adjusting surface and the second adjusting surface.

4. The spreader according to claim 1 or 2, characterized in that Each of the two adjacent main beam segments is provided with a connecting flange at its opposite end, and the two opposite connecting flanges are connected by a connector.

5. The spreader of claim 1, wherein The main beam includes three main beam segments, and two lifting points are arranged at intervals along the first direction on the main beam, with the two lifting points respectively located near the connection between two adjacent main beam segments.

6. The spreader of claim 1, wherein The main frame includes a plurality of main beams arranged at intervals along a second direction, and the support beams connect the plurality of main beams; at least one load-bearing beam for supporting functional components is also connected between two adjacent main beams, the load-bearing beam is connected between two adjacent main beams along the second direction, and the load-bearing beam is located near the connection point of adjacent main beam segments.

7. The spreader of claim 1, wherein The lifting device also includes four sets of guide components arranged at the four corners of the main frame body; The guide assembly includes a first guide rod extending in a first direction and a second guide rod extending in a second direction, the first guide rod and the second guide rod being perpendicularly connected, and the first guide rod or the second guide rod being connected to the frame body; The first guide rod is provided with a first guide member extending in a first direction and rotating relative to the first guide rod, and the second guide rod is provided with a second guide member extending in a second direction and rotating relative to the second guide rod.

8. The spreader of claim 1, wherein The picking mechanism includes a plurality of suction cups disposed on each of the support beams and spaced apart along the second direction. The suction cups are connected to a vacuum pump via a connecting pipe assembly for adsorption operations. The photovoltaic array semi-finished product has multiple photovoltaic modules, and at least some of the suction cups on two adjacent support beams constitute a suction cup group for adsorbing the same photovoltaic module. One or more groups of suction cups are provided on two adjacent support beams along the second direction. The two adjacent support beams are respectively the first support beam and the second support beam. Some of the suction cups of the suction cup group are connected to the first passage, and the other part of the suction cups are connected to the second passage. At least one of the suction cups connected to the first passage is located on the first support beam and at least one is located on the second support beam; at least one of the suction cups connected to the second passage is located on the first support beam and at least one is located on the second support beam. In this case, the first passage and the second passage of each suction cup group are controlled independently, or the first passage of the suction cup group located on the same support beam is controlled independently together and the second passage is controlled independently together.

9. The spreader of claim 8, wherein The pickup mechanism includes two vacuum pumps, each of which is connected to the respective suction cups via the connecting pipe assembly.

10. The spreader of claim 8, wherein The pickup mechanism also includes multiple air intake valves, which are correspondingly arranged in each of the first passage and the second passage; each air intake valve is also provided with a filter, which is used to filter the gas entering the first passage and / or the second passage through the air intake valve.

11. The spreader of claim 10, wherein The air intake valve and / or the vacuum pump are covered with a rain cover.

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