Large-specification generator combined rotor core and intelligent assembly system thereof

Abstract

The invention belongs to the technical field of wind power rotor cores, and particularly relates to a combined rotor core of a large-size generator and an intelligent assembling system of the combined rotor core of the large-size generator, the combined rotor core of the large-size generator is of a two-layer structure layout, and each layer is of a spliced circle structure formed by splicing a plurality of rotor core segments; the two rotor iron core segments which are arranged side by side up and down are clamped with each other to form a segment unit, and the two adjacent segment units are connected into a whole through a connecting member and a connecting screw. The connecting member can limit the axial separation of the rotor iron core segments, and can further lock the mutual position relation of the two mutually clamped rotor iron core segments at the same time. The combined rotor iron core of the large-specification generator is high in structural stability, the vortex fan blades are arranged at the outer ends of the clamping blocks of the connecting components, when the rotor rotates, airflow can be guided to diffuse from the center to the periphery, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind turbine rotor cores, and in particular relates to a large-scale generator combined rotor core and an intelligent assembly system thereof. Background Art

[0002] The advantages of using a combined rotor core for large-scale generators mainly include the following aspects: 1) Easy to manufacture and assemble: The combined rotor core design allows the core to be divided into several sections for manufacturing. Compared with the integrally forged rotor core, this segmented design is more flexible in manufacturing, can simplify the production process, and reduce dependence on large-scale forging equipment. At the same time, the assembly operation is also relatively convenient, and there is no gap between the assembled rotor cores, thus ensuring the power density and performance of the generator. 2) Strong adaptability: The segmented design of the combined rotor core provides great flexibility and can be customized according to the specifications and performance requirements of the generator to meet the needs of different application scenarios. 3) Easy maintenance: Due to the segmented structure of the combined rotor core, it is easier to inspect and replace a specific part during maintenance, reducing the difficulty and cost of maintenance. 4) Improved material utilization: Through segmented manufacturing and assembly, materials can be used more efficiently, reducing material waste, which is in line with the concept of sustainable development.

[0003] Traditional large-scale generator combined rotor cores have several drawbacks. First, their design is not rational, resulting in low overall heat dissipation efficiency, which affects their service life. Second, their assembly is cumbersome, and the structural stability of the assembled rotor core needs to be improved. Therefore, optimization and improvement are needed. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art and to provide a large-scale generator combined rotor core and an intelligent assembly system thereof.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a large-scale generator combined rotor core, which includes rotor core segments, connecting components and connecting screws. The rotor core segments are provided with two layers, and two rotor core segments arranged in parallel above and below are mutually clamped to form a segment unit, and two adjacent segment units are connected as a whole by connecting components and connecting screws.

[0007] Furthermore, in the above-mentioned large-scale generator combined rotor core, the rotor core segment includes an arc-shaped segment block, and a plurality of T-shaped rotor slots are evenly distributed on the outer edge of the arc-shaped segment block. A clamping block is provided on one end face of the arc-shaped segment block along the thickness direction, and a radial through-hole is provided in the middle of the clamping block. A vortex fan blade is installed on the outer end of the clamping block. The arc-shaped segment block is provided with a clamping groove along the thickness direction, and an L-shaped connecting groove is provided near both ends at the inner edge of the arc-shaped segment block, wherein the L-shaped connecting groove near the clamping groove is connected to a strip groove, and a radial screw hole is provided between the strip groove and the clamping groove.

[0008] Furthermore, in the above-mentioned large-scale generator combined rotor core, when the clamping block of the upper rotor core segment is clamped into the clamping groove of the lower rotor core segment, the clamping block of the lower rotor core segment is also just clamped into the clamping groove of the upper rotor core segment, and the position of the radial through-hole in the clamping block is aligned with the position of the radial screw hole at the corresponding clamping groove.

[0009] Furthermore, in the above-mentioned large-scale generator combined rotor core, the connecting component is composed of an arc-shaped main board, an axial baffle and an arc-shaped connecting plate. Axial baffles are provided at the upper and lower ends of the arc-shaped main board, and arc-shaped connecting plates that cooperate with the strip grooves are provided at the left and right ends of the arc-shaped main board. Step holes that cooperate with connecting screws are opened in the arc-shaped connecting plate.

[0010] Furthermore, in the above-mentioned large-scale generator combined rotor core, the shapes of the arc-shaped main plate and the axial baffle match the shape of the L-shaped connecting groove, and the shape of the arc-shaped connecting plate matches the shape of the strip groove.

[0011] Furthermore, in the above-mentioned large-scale generator combined rotor core, the end of the connecting screw cooperates with the step hole of the connecting component and a hexagonal groove is provided on the outside of the end, and the rod of the connecting screw is provided with a smooth section that cooperates with the radial through hole and a threaded section that cooperates with the radial screw hole.

[0012] Furthermore, in the above-mentioned large-scale generator combined rotor core, the intelligent assembly system includes a base plate, a rotary drive, an annular adsorption block, a column, a component installation assembly, a screw air delivery assembly, a lower-layer screw fastening machine and an upper-layer screw fastening machine. The base plate is installed with a rotary drive and a column located in the hollow area inside it, and an annular adsorption block for supporting the rotor core segment is installed on the upper side of the movable ring of the rotary drive. The column is sequentially installed along the circumferential direction with a component installation assembly for clamping the connecting component with the rotor core segment, a screw air delivery assembly for conveying the connecting screws, a lower-layer screw fastening machine for fastening the lower-layer connecting screws and an upper-layer screw fastening machine for fastening the upper-layer connecting screws.

[0013] Further, in the above-mentioned large-sized generator combined rotor core, the annular adsorption block is adsorbed and locked by electromagnetic adsorption or vacuum adsorption. The upper end of the annular adsorption block is circumferentially staggered with a first avoidance groove for avoiding the eddy current fan blades in the rotor core segments and a second avoidance groove for avoiding the connecting members.

[0014] Further, in the above-mentioned large-sized generator combined rotor core, the component installation assembly is composed of a first push rod and an arc-shaped adsorption plate installed at its movable end. The arc-shaped adsorption plate adsorbs and locks the connecting member by electromagnetic adsorption or vacuum adsorption.

[0015] Further, in the above-mentioned large-sized generator combined rotor core, the screw pneumatic conveying assembly includes a second push rod, a push plate, a screw supply head, a screw pneumatic conveying pipe, and a screw storage. The movable end of the second push rod is installed with two screw supply heads through the push plate, and the rear end of each screw supply head is connected to the screw storage through the screw pneumatic conveying pipe.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The large-sized generator combined rotor core of the present invention has a two-layer structural layout. Each layer is a circular structure formed by splicing multiple rotor core segments. The two rotor core segments in the upper and lower parallel positions are mutually clamped to form a segmented unit. Adjacent two segmented units are connected into a whole through connecting members and connecting screws. The connecting member can limit the axial separation of the rotor core segments and further lock the relative positions of the two mutually clamped rotor core segments. The large-sized generator combined rotor core of the present invention has relatively high structural stability. Eddy current fan blades are arranged at the outer ends of the clamping blocks of the connecting member. When the rotor rotates, it is beneficial to guide the air flow to diffuse from the center to the periphery, improving the heat dissipation effect.

[0018] 2. The intelligent assembly system of the present invention mainly consists of a bottom plate, a rotary drive, an annular adsorption block, a column, a component installation assembly, a screw pneumatic feeding assembly, a lower-layer screw tightening machine, and an upper-layer screw tightening mechanism. The external first loading manipulator is used to sequentially place the segmented rotor cores on the annular adsorption block. Each time the annular adsorption block receives a segmented rotor core, the rotary drive is used to drive the annular adsorption block to rotate a certain angle. After the lower-layer segmented rotor cores are laid, another layer of segmented rotor cores is laid above them. The external second loading manipulator is used to provide connecting components to the component installation assembly, and the component installation assembly is used to install the connecting components into the U-shaped groove composed of four L-shaped connecting grooves. Each time an installation operation of a connecting component is completed, the annular adsorption block is driven to rotate a certain angle. At the same time, the screw pneumatic feeding assembly is used to insert the connecting screws into the corresponding installation positions, the lower-layer screw tightening machine is used to tighten the lower-layer connecting screws, and the upper-layer screw tightening machine is used to tighten the upper-layer connecting screws. In this way, the intelligent assembly of the large-scale generator combined rotor core can be realized.

[0019] Of course, it is not necessary for any product implementing the present invention to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. [[ID=IO]]

[0021] Figure 1 It is a schematic structural diagram of the large-scale generator combined rotor core in the present invention;

[0022] Figure 2 It is a front view schematic diagram of the large-scale generator combined rotor core in the present invention;

[0023] Figure 3 It is a top view schematic diagram of the large-scale generator combined rotor core in the present invention;

[0024] Figure 4 It is an assembly drawing of the segmented rotor core, connecting component, and connecting screw in the present invention;

[0025] Figure 5 It is an exploded view of the segmented rotor core, connecting component, and connecting screw in the present invention;

[0026] Figure 6 It is a schematic structural diagram of the segmented rotor core in the present invention;

[0027] Figure 7Schematic diagram of the connecting component in the present invention;

[0028] Figure 8 Schematic diagram of the intelligent assembly system in the present invention;

[0029] Figure 9 Schematic diagram of the rotary drive in the present invention;

[0030] Figure 10 Schematic diagram of the annular adsorption block in the present invention;

[0031] Figure 11 Schematic diagram of the component installation assembly in the present invention;

[0032] Figure 12 Schematic diagram of the screw pneumatic feeding assembly in the present invention;

[0033] In the drawings, the components represented by the reference numerals are as follows:

[0034] 1 - segmented rotor core, 101 - arc-shaped segmented block, 102 - T-shaped rotor slot, 103 - clamping block, 104 - radial perforation, 105 - eddy current fan blade, 106 - clamping groove, 107 - L-shaped connection groove, 108 - strip-shaped groove, 109 - radial screw hole; 2 - connecting component, 201 - arc-shaped main board, 202 - axial baffle, 203 - arc-shaped connecting plate, 204 - stepped hole; 3 - connecting screw; 4 - bottom plate; 5 - rotary drive; 6 - annular adsorption block, 601 - first avoidance groove, 602 - second avoidance groove; 7 - column; 8 - component installation assembly, 801 - first push rod, 802 - arc-shaped adsorption plate; 9 - screw pneumatic feeding assembly, 901 - second push rod, 902 - push plate, 903 - screw supply head; 10 - lower screw tightening machine; 11 - upper screw tightening machine. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1

[0037] As Figures 1 - 5As shown, this embodiment provides a large-scale generator combined rotor core, which includes a rotor core segment 1, a connecting member 2 and a connecting screw 3. The rotor core segment 1 is provided with two layers, and the two rotor core segments 1 arranged in parallel above and below are clamped together to form a segment unit. The two adjacent segment units are connected as a whole by the connecting member 2 and the connecting screw 3.

[0038] like Figure 6 As shown, the rotor core segment 1 includes an arcuate segment block 101, with several T-shaped rotor slots 102 evenly distributed along the outer edge of the arcuate segment block 101. A clamping block 103 is provided along the thickness of one end face of the arcuate segment block 101. A radial through-hole 104 is provided in the middle of the clamping block 103. Eddy current blades 105 are mounted on the outer end of the clamping block 103. A clamping slot 106 is provided through the thickness of the arcuate segment block 101. L-shaped connecting slots 107 are provided near both ends of the inner edge of the arcuate segment block 101. The L-shaped connecting slot 107 near the clamping slot 106 is connected to a strip slot 108. A radial screw hole 109 is provided between the strip slot 108 and the clamping slot 106.

[0039] In this embodiment, when the clamping block 103 of the upper rotor core segment 1 is clamped into the clamping groove 106 of the lower rotor core segment 1, the clamping block 103 of the lower rotor core segment 1 is also clamped into the clamping groove 106 of the upper rotor core segment 1, and the position of the radial through hole 104 in the clamping block 103 is aligned with the position of the radial screw hole 109 at the corresponding clamping groove 106.

[0040] like Figure 7 As shown, the connecting member 2 is composed of an arc-shaped main board 201, an axial baffle 202 and an arc-shaped connecting plate 203. The upper and lower ends of the arc-shaped main board 201 are provided with axial baffles 202, and the left and right ends of the arc-shaped main board 201 are provided with arc-shaped connecting plates 203 that cooperate with the strip groove 108. The arc-shaped connecting plate 203 is provided with a step hole 204 that cooperates with the connecting screw 3.

[0041] In this embodiment, the shapes of the arc-shaped main plate 201 and the axial baffle 202 match the shape of the L-shaped connecting groove 107 , and the shape of the arc-shaped connecting plate 203 matches the shape of the strip groove 108 .

[0042] In this embodiment, the end of the connecting screw 3 cooperates with the stepped hole 204 of the connecting component 2 and a hexagonal groove is provided on the outside of the end. The rod of the connecting screw 3 is provided with a smooth section that cooperates with the radial through hole 104 and a threaded section that cooperates with the radial screw hole 109.

[0043] The specific application of this embodiment is as follows: The large-sized generator combined rotor core has a two-layer structural layout. Each layer is a circular structure formed by splicing multiple rotor core segments 1. Two rotor core segments 1 arranged side by side vertically are mutually clamped to form a segment unit. Adjacent segment units are connected into an integral body through connecting members 2 and connecting screws 3. The connecting member 2 can limit the axial detachment of the rotor core segment 1, and at the same time can further lock the relative position relationship between the two mutually clamped rotor core segments 1. The large-sized generator combined rotor core has relatively high structural stability. An eddy current fan blade 105 is arranged at the outer end of the clamping block 103 of the connecting member 2. When the rotor rotates, it is beneficial to guide the air flow to diffuse from the center to the periphery, improving the heat dissipation effect.

[0044] Embodiment Two

[0045] This embodiment provides an intelligent assembly system for a large-sized generator combined rotor core, as Figure 8 shown. The intelligent assembly system includes a bottom plate 4, a rotary driver 5, an annular adsorption block 6, a column 7, a component installation assembly 8, a screw pneumatic conveying assembly 9, a lower-layer screw tightening machine 10, and an upper-layer screw tightening machine 11. The rotary driver 5 and the column 7 located in its internal hollow area are installed on the bottom plate 4. An annular adsorption block 6 for carrying the rotor core segment 1 is installed on the upper side of the movable ring of the rotary driver 5. The column 7 is sequentially installed with a component installation assembly 8 for clamping the connecting member 2 and the rotor core segment 1, a screw pneumatic conveying assembly 9 for conveying the connecting screw 3, a lower-layer screw tightening machine 10 for tightening the lower-layer connecting screw 3, and an upper-layer screw tightening machine 11 for tightening the upper-layer connecting screw 3 along the circumferential direction.

[0046] As Figure 9 shown, the annular adsorption block 6 adsorbs and locks the annular adsorption block by electromagnetic adsorption or vacuum adsorption. First avoidance grooves 601 for avoiding the eddy current fan blades 105 in the rotor core segment 1 and second avoidance grooves 602 for avoiding the connecting member 2 are alternately arranged along the circumferential direction at the upper end of the annular adsorption block 6.

[0047] As Figure 10 shown, the rotary driver 5 mainly utilizes the worm and worm gear transmission principle. The rotary driver is usually driven by a power source such as a motor to rotate the worm, and the worm meshes with the worm gear of the slewing bearing. This transmission method can convert the high-speed and small-torque output of the motor into a low-speed and large-torque output, thereby effectively driving the rotary part of large equipment. In addition, the worm and worm gear transmission has the characteristic of reverse self-locking. When an external force attempts to reverse the rotary part, the device can remain stationary, ensuring the safety and stability during the working process.

[0048] As Figure 11As shown, the component installation assembly 8 is composed of a first push rod 801 and an arc-shaped adsorption plate 802 installed at its movable end. The arc-shaped adsorption plate 802 adsorbs and locks the connecting component 2 by means of electromagnetic adsorption or vacuum adsorption.

[0049] As Figure 12 shown, the screw pneumatic feeding assembly 9 includes a second push rod 901, a push plate 902, a screw supply head 903, a screw pneumatic feeding pipe and a screw storage. Two screw supply heads 903 are installed at the movable end of the second push rod 901 via the push plate 902, and the rear end of each screw supply head 903 is connected to the screw storage via the screw pneumatic feeding pipe.

[0050] The specific application of this embodiment is as follows: This intelligent assembly system is mainly composed of a bottom plate 4, a rotary drive 5, an annular adsorption block 6, a column 7, a component installation assembly 8, a screw pneumatic feeding assembly 9, a lower-layer screw tightening machine 10 and an upper-layer screw tightening machine 11. The segmented rotor core 1 is sequentially placed on the annular adsorption block 6 by using an external first loading manipulator. Each time the annular adsorption block 6 receives a segmented rotor core 1, the rotary drive 5 is used to drive the annular adsorption block 6 to rotate a certain angle. After the lower-layer segmented rotor core 1 is laid, another layer of segmented rotor core 1 is laid above it. The connecting component 2 is provided to the component installation assembly 8 by using an external second loading manipulator, and the component installation assembly 8 is used to install the connecting component 2 into the U-shaped groove composed of four L-shaped connecting grooves 107. Each time an installation operation of a connecting component 2 is completed, the annular adsorption block 6 is driven to rotate a certain angle. At the same time, the connecting screw 3 is inserted into the corresponding installation position by using the screw pneumatic feeding assembly 9, the lower-layer connecting screw 3 is tightened by using the lower-layer screw tightening machine 10, and the upper-layer connecting screw 3 is tightened by using the upper-layer screw tightening machine 11. In this way, the intelligent assembly of the large-scale generator combined rotor core can be realized.

[0051] The preferred embodiments of the present invention disclosed above are only helpful for explaining the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to only the specific implementation manners. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A combined rotor core for a large-sized generator, characterized in that, The rotor core includes rotor core segments, connecting components and connecting screws. The rotor core segments are provided with two layers, and two rotor core segments arranged in parallel above and below are mutually clamped to form a segment unit. The two adjacent segment units are connected as a whole by connecting components and connecting screws.

2. The modular rotor core of a large-sized generator according to claim 1, wherein The rotor core segment includes an arc-shaped segment block, and a plurality of T-shaped rotor slots are evenly distributed on the outer edge of the arc-shaped segment block. A clamping block is provided on one end face of the arc-shaped segment block along the thickness direction, and a radial through-hole is provided in the middle of the clamping block. A vortex fan blade is installed on the outer end of the clamping block. The arc-shaped segment block is provided with a clamping groove along the thickness direction. L-shaped connecting grooves are respectively provided at the inner edge of the arc-shaped segment block near both ends, wherein the L-shaped connecting groove near the clamping groove is connected to a strip groove, and a radial screw hole is provided between the strip groove and the clamping groove.

3. The large-size generator combined rotor core according to claim 2, characterized in that, When the clamping block of the upper rotor core segment is clamped into the clamping groove of the lower rotor core segment, the clamping block of the lower rotor core segment is also clamped into the clamping groove of the upper rotor core segment, and the position of the radial through-hole in the clamping block is aligned with the position of the radial screw hole at the corresponding clamping groove.

4. The large-sized generator combined rotor core according to claim 3, wherein, The connecting component is composed of an arc-shaped main board, an axial baffle and an arc-shaped connecting plate. Axial baffles are provided at the upper and lower ends of the arc-shaped main board, and arc-shaped connecting plates that cooperate with the strip grooves are provided at the left and right ends of the arc-shaped main board. Step holes that cooperate with connecting screws are opened in the arc-shaped connecting plate.

5. The large-sized generator combined rotor core according to claim 4, characterized in that The shapes of the arc-shaped main plate and the axial baffle match the shape of the L-shaped connecting groove, and the shape of the arc-shaped connecting plate matches the shape of the strip groove.

6. The modular rotor core of a large-sized generator according to claim 5, characterized in that, The end of the connecting screw cooperates with the stepped hole of the connecting component and a hexagonal groove is provided on the outside of the end. The rod of the connecting screw is provided with a smooth section that cooperates with the radial through hole and a threaded section that cooperates with the radial screw hole.

7. The intelligent assembly system for the large-size generator combined rotor core according to claim 6, characterized in that, The intelligent assembly system includes a base plate, a rotary drive, an annular adsorption block, a column, a component installation assembly, a screw air delivery assembly, a lower-layer screw fastening machine and an upper-layer screw fastening machine. The base plate is installed with a rotary drive and a column located in the hollow area inside it. The upper side of the movable ring of the rotary drive is installed with an annular adsorption block for carrying the rotor core segment. The column is sequentially installed along the circumferential direction with a component installation assembly for clamping the connecting component with the rotor core segment, a screw air delivery assembly for conveying the connecting screws, a lower-layer screw fastening machine for fastening the lower-layer connecting screws and an upper-layer screw fastening machine for fastening the upper-layer connecting screws.

8. The intelligent assembly system according to claim 7, characterized in that, The annular adsorption block is adsorbed and locked by electromagnetic adsorption or vacuum adsorption. The upper end of the annular adsorption block is staggered along the circumferential direction with a first avoidance groove for avoiding the eddy current fan blades in the rotor core segment and a second avoidance groove for avoiding the connecting component.

9. The intelligent assembly system according to claim 8, wherein The component installation assembly is composed of a first push rod and an arc-shaped adsorption plate installed at the movable end thereof. The arc-shaped adsorption plate adsorbs and locks the connecting component through electromagnetic adsorption or vacuum adsorption.

10. The intelligent assembly system according to claim 9, characterized in that, The screw pneumatic feeding assembly includes a second push rod, a push plate, a screw supply head, a screw pneumatic feeding pipe, and a screw storage. The movable end of the second push rod is provided with two screw supply heads through the push plate, and the rear end of each screw supply head is connected to the screw storage through the screw pneumatic feeding pipe.

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