A wind turbine generator unit large planet carrier casting sand box

Abstract

The utility model relates to wind generating set planetary carrier casting technical field especially wind generating set big planetary carrier casting sand box, including upper sand box and lower sand box, be provided with heightening subassembly between upper sand box and lower sand box, the heightening subassembly includes and sets up in the middle sand box between upper sand box and lower sand box, the outside four all of middle sand box, upper sand box and lower sand box are provided with side groove, the inner chamber of side groove all installs heat dissipation subassembly, the both sides of the upper and lower ends of middle sand box all are provided with the insert block, the outside of insert block all is provided with locking slot, compared with prior art, the utility model discloses the locking block of locking subassembly and the locking slot of the both sides of the end of middle sand box are inserted and locked to the insert block, so that upper sand box, lower sand box and middle sand box carry out the quick insertion and lock fixed, and the quick assembly fixed of being convenient for realizes, and the convenient dismounting effectively improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine planetary carrier technology, and in particular to a casting sand box for a large planetary carrier of a wind turbine. Background Technology

[0002] The wind turbine is one of the heavy components of a wind power generation system, and the wind turbine gearbox is an important mechanical component in the wind turbine generator set. As the transmission component inside the gearbox, the planetary carrier directly bears and transmits huge dynamic and static loads, and its role is very critical. Currently, the planetary carriers of wind turbine generators are basically manufactured using casting technology.

[0003] Sand casting refers to a casting method that produces castings in sand molds. It requires the use of a sand box for assistance during casting. The sand box is used to fit together the upper and lower boxes. Traditionally, bolts are used to stabilize the two sets of boxes during assembly. This bolt stabilization method requires workers to rotate and tighten the bolts, making the assembly process cumbersome. Furthermore, due to the varying sizes of wind turbine planetary carriers, each planetary carrier mold requires a separate sand box design, increasing the cost of using sand boxes. Therefore, we provide a sand box for casting large planetary carriers of wind turbines to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects in the existing technology and provide a casting sand box for the planetary carrier of a wind turbine generator set.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a sand box for casting a planetary carrier of a wind turbine generator set, including an upper sand box and a lower sand box, wherein a heightening component is provided between the upper sand box and the lower sand box. The heightening assembly includes a middle sand box disposed between the upper sand box and the lower sand box. Side grooves are provided around the outer perimeter of the middle sand box, the upper sand box, and the lower sand box. Heat dissipation components are installed in the inner cavities of the side grooves. Insert blocks are provided on both sides of the upper and lower ends of the middle sand box. Locking grooves are provided on the outer sides of the insert blocks. Slots for insertion into the insert blocks are provided on both sides of the lower end of the upper sand box and both sides of the upper end of the lower sand box. Locking components for insertion into the locking grooves are provided on both sides of the upper sand box and the lower sand box.

[0006] In a further preferred embodiment, the two sets of locking components each include limiting posts disposed on both sides of the upper and lower sand boxes. An L-shaped plate is movably inserted into the outer side of the limiting post, and locking blocks are equidistantly installed on the inner side of the L-shaped plate. Both sides of the upper and lower sand boxes are provided with through grooves corresponding to their positions, and the through grooves are connected to slots. Spring rods are equidistantly installed in the inner cavity of the L-shaped plate. Both sides of the upper and lower sand boxes are provided with mounting grooves corresponding to the positions of the spring rods. The end of the spring rod away from the L-shaped plate is installed in the inner cavity of the mounting groove. One end of the locking block passes through the through groove and extends into the inner cavity of the slot, where it is inserted into the locking groove on the outer side of the locking block. Pull blocks are installed on the outer side of the L-shaped plate.

[0007] In a further preferred embodiment, positioning posts are installed around both ends of the middle sand box, and insertion holes are provided around the lower end of the upper sand box and the upper end of the lower sand box for insertion.

[0008] In a further preferred embodiment, multiple locking blocks are provided on both the upper and lower sides of the intermediate sand box, and locking slots for interlocking are provided on both the lower sides of the upper sand box and the upper sides of the lower sand box.

[0009] In a further preferred embodiment, the upper sand box and the lower sand box are the same size and shape, and the upper part of the inner cavity of the upper sand box and the lower part of the inner cavity of the lower sand box are connected with mesh belts. Lifting piles are symmetrically installed in the inner cavities of two side grooves on the outer sides of the upper sand box, the lower sand box, and the middle sand box.

[0010] In a further preferred embodiment, the heat dissipation assembly includes a heat dissipation copper plate installed in the inner cavity of the side slot. A heat dissipation fin is integrally connected at equal intervals on one side of the heat dissipation copper plate. A plurality of heat-absorbing copper tubes are connected to the end of the heat dissipation copper plate away from the heat dissipation fins. The end of the heat-absorbing copper tubes away from the heat dissipation copper plate passes through the side slot and extends to its outer side.

[0011] The advantages and beneficial effects of this utility model are as follows: 1. The locking components designed on the outside of the upper and lower sand boxes are used to lock the upper sand box, the lower sand box and the middle sand box by inserting the locking blocks of the locking components into the locking grooves on the outside of the insert blocks at both ends of the middle sand box. This allows the upper sand box, the lower sand box and the middle sand box to be quickly inserted and locked, which facilitates quick assembly and fixation and is easy to disassemble, thus effectively improving work efficiency.

[0012] 2. By designing upper and lower sand boxes of the same size and shape, the versatility of the sand boxes can be increased while ensuring the strength of the sand mold, thus reducing the cost of the sand boxes. Furthermore, the design of the intermediate sand box allows for the design of intermediate sand boxes of different heights. When casting planetary carriers of different sizes, the corresponding intermediate sand box and the upper and lower sand boxes of the same size and shape can be assembled and fixed together, effectively improving the versatility of the sand boxes and reducing the cost of producing casting products. 3. Several heat-absorbing copper pipes come into contact with the sand iron filling the upper sand box, lower sand box, and middle sand box. During casting, the sand iron absorbs heat and transfers it to the heat-absorbing copper pipes. The heat-absorbing copper pipes then quickly conduct heat to the heat-dissipating copper plate. The heat-dissipating copper plate and its outer heat sink effectively and continuously dissipate heat, thus effectively improving the cooling efficiency of the product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a casting sand box for a large planetary carrier of a wind turbine generator set proposed in this utility model; Figure 2 This is a schematic diagram of the overall exploded three-dimensional structure of a casting sand box for a planetary carrier of a wind turbine generator set proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the upper sand box of the casting sand box for a planetary carrier of a wind turbine generator set proposed in this utility model. Figure 4 This utility model provides a three-dimensional structural diagram showing the cross-sectional view of the upper sand box portion and the disassembled cross-sectional view of the locking component of a wind turbine generator planetary support casting sand box. Figure 5 This is a bottom-view three-dimensional structural diagram of the upper sand box of the casting sand box for the planetary carrier of a wind turbine generator set proposed in this utility model. Figure 6 This invention provides a cross-sectional view of the middle sand box portion and a three-dimensional structural diagram of the heat dissipation component disassembled in a sand box for casting a planetary carrier of a wind turbine generator.

[0014] In the diagram: 1. Upper sand box; 2. Lower sand box; 3. Heightening component; 31. Middle sand box; 32. Positioning post; 33. Locking block; 34. Insertion block; 35. Locking groove; 4. Mesh box belt; 5. Side groove; 6. Heat dissipation component; 61. Heat dissipation copper plate; 62. Heat absorption copper pipe; 63. Heat dissipation fin; 7. Lifting pile; 8. Locking component; 81. L-shaped plate; 82. Pull block; 83. Limiting post; 84. Locking block; 85. Spring rod; 9. Insertion hole; 10. Slot; 11. Mounting groove; 12. Through groove; 13. Locking groove. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0016] Reference Figure 1-6A sand box for casting a planetary carrier of a wind turbine generator set includes an upper sand box 1 and a lower sand box 2. A heightening component 3 is provided between the upper sand box 1 and the lower sand box 2. The heightening component 3 includes a middle sand box 31 disposed between the upper sand box 1 and the lower sand box 2. Side grooves 5 are provided around the outer perimeter of the middle sand box 31, the upper sand box 1 and the lower sand box 2. Insert blocks 34 are provided on both sides of the upper and lower ends of the middle sand box 31. Locking grooves 35 are provided on the outer side of each insert block 34. Slots 10 for inserting into the insert blocks 34 are provided on both sides of the lower end of the upper sand box 1 and the upper end of the lower sand box 2. Locking components 8 for inserting into the locking grooves 35 are provided on both sides of the upper sand box 1 and the lower sand box 2.

[0017] The two sets of locking components 8 each include limiting posts 83 set on both sides of the upper sand box 1 and the lower sand box 2. An L-shaped plate 81 is movably inserted into the outer side of the limiting post 83. Locking blocks 84 are installed at equal intervals on the inner side of the L-shaped plate 81. Both sides of the upper sand box 1 and the lower sand box 2 are provided with through grooves 12 corresponding to their positions. The through grooves 12 are connected to the slots 10. Spring rods 85 are installed at equal intervals in the inner cavity of the L-shaped plate 81. Both sides of the upper sand box 1 and the lower sand box 2 are provided with mounting grooves 11 corresponding to the positions of the spring rods 85. The end of the spring rod 85 away from the L-shaped plate 81 is installed in the inner cavity of the mounting groove 11. One end of the locking block 84 passes through the through groove 12 and extends to the inner cavity of the slot 10 and is inserted into the locking groove 35 on the outer side of the insert block 34. Pull blocks 82 are installed on the outer side of the L-shaped plate 81.

[0018] When assembling the upper sand box 1, lower sand box 2, and middle sand box 31, the insert 34 at the lower end of the middle sand box 31 is partially inserted into the slot 10 at the upper end of the lower sand box 2. The operator pulls the pull block 82 outwards with both hands, causing the L-shaped plate 81 to move away from the outer side of the lower sand box 2. The L-shaped plate 81 is guided and limited by the limiting post 83, and it pulls the spring rod 85 to stretch. This causes the locking block 84 on the inner side of the L-shaped plate 81 to gradually move away from the inner cavity of the slot 10, allowing the lower insert 34 of the middle sand box 31 to fall naturally and fully insert into the inner cavity of the slot 10 at the upper end of the lower sand box 2. The operator then releases the pull block 82, and the stretched spring rod 85 automatically rebounds and returns to its original position. When the spring rod 85 is reset, it synchronously drives the L-shaped plate 81 and the locking block 84 to move in the opposite direction until the locking block 84 passes through the through groove 12 and extends into the inner cavity of the slot 10 and is inserted into the locking groove 35 on the outside of the insert block 34 for locking. This allows the lower sand box 2 and the middle sand box 31 to be quickly inserted and locked, which is convenient for operation. Similarly, the upper sand box 1 is placed on top of the middle sand box 31, so that the insert block 34 at the upper end of the middle sand box 31 is inserted into the slot 10 at the lower end of the lower upper sand box 1. Then the locking component 8 on the outside of the upper sand box 1 is operated again, and the same operation is performed as above, so that the upper sand box 1 and the middle sand box 31 can be quickly inserted and locked, which facilitates quick assembly and fixation and effectively improves work efficiency.

[0019] Positioning posts 32 are installed around both ends of the middle sand box 31, and insertion holes 9 are provided around the lower end of the upper sand box 1 and the upper end of the lower sand box 2.

[0020] When assembling the middle sand box 31, the upper sand box 1, and the lower sand box 2, the positioning pins 32 at both ends of the middle sand box 31 can quickly be positioned and inserted into the insertion holes 9 at the lower end of the upper sand box 1 and the upper end of the lower sand box 2, which effectively improves the assembly efficiency.

[0021] Multiple locking blocks 33 are provided on both the upper and lower sides of the middle sand box 31. The lower sides of the upper sand box 1 and the upper sides of the lower sand box 2 are provided with locking slots 13 for interlocking. When the middle sand box 31, the upper sand box 1 and the lower sand box 2 are assembled, the locking blocks 33 at both ends of the middle sand box 31 are respectively locked and fixed with the locking slots 13 at the lower end of the upper sand box 1 and the upper end of the lower sand box 2, which effectively improves the stable interlocking effect between the middle sand box 31 and the upper sand box 1 and the lower sand box 2.

[0022] The inner cavity of the side groove 5 is equipped with a heat dissipation component 6. The heat dissipation component 6 includes a heat dissipation copper plate 61 installed in the inner cavity of the side groove 5. A heat dissipation fin 63 is integrally connected at equal intervals on one side of the heat dissipation copper plate 61. A number of heat-absorbing copper pipes 62 are connected to the end of the heat dissipation copper plate 61 away from the heat dissipation fin 63. The end of the heat-absorbing copper pipe 62 away from the heat dissipation copper plate 61 passes through the side groove 5 and extends to its outer side.

[0023] Several heat-absorbing copper pipes 62 come into contact with the sand iron filled in the upper sand box 1, lower sand box 2, and middle sand box 31. During casting, the sand iron absorbs heat and transfers it to the heat-absorbing copper pipes 62. The heat-absorbing copper pipes 62 then quickly conduct heat to the heat-dissipating copper plate 61. The heat-dissipating copper plate 61 and its outer heat dissipation fins 63 effectively and continuously dissipate heat, thus effectively improving the cooling efficiency of the product.

[0024] The upper sand box 1 and the lower sand box 2 are the same size and shape. The upper part of the inner cavity of the upper sand box 1 and the lower part of the inner cavity of the lower sand box 2 are connected with mesh box belts 4. Lifting piles 7 are symmetrically installed in the inner cavities of two side grooves 5 on the outer side of the upper sand box 1, the lower sand box 2 and the middle sand box 31.

[0025] The designed lifting piles 7 facilitate the hoisting of the sand box, making it easy to use. The designed mesh box belts 4 enhance the strength of the upper sand box 1 and lower sand box 2, increasing the overall strength and rigidity of the sand mold and preventing it from collapsing during handling and pouring. Furthermore, the design of upper sand box 1 and lower sand box 2 with the same size and shape increases the versatility of the sand box while ensuring the strength of the sand mold, reducing the cost of the sand box. The designed intermediate sand box 31 allows for the design of intermediate sand boxes of different heights. When casting planetary carriers of different sizes, the corresponding intermediate sand box 31 can be assembled and fixed with the upper sand box 1 and lower sand box 2 of the same size and shape, effectively improving the versatility of the sand box and reducing the cost of producing casting products.

[0026] Working Principle: In use, the lower end of the medium sand box 31 inserts a portion of the insert 34 into the upper end of the slot 10 of the lower sand box 2. The operator pulls the pull block 82 outwards with both hands, causing the pull block 82 to move the L-shaped plate 81 away from the outer side of the lower sand box 2. The L-shaped plate 81 is guided and limited by the limiting post 83, and the L-shaped plate 81 pulls the spring rod 85, causing the locking block 84 on the inner side of the L-shaped plate 81 to gradually move away from the inner cavity of the slot 10. The lower end of the medium sand box 31 then falls naturally, fully inserting into the inner cavity of the slot 10 at the upper end of the lower sand box 2. The operator then releases the pull block 82, and the stretched spring rod 85 rebounds and automatically resets. Simultaneously, the spring rod 85 resets, causing the L-shaped plate 81 and the locking block 84 to move in the opposite direction until the locking block 84 passes through the through groove 12 and extends into the inner cavity of the slot 10, where it engages with the locking groove 3 on the outer side of the insert 34. The five-phase plug-in locking mechanism allows for quick plug-in and locking of the lower sand box 2 and the middle sand box 31, facilitating operation. Similarly, the upper sand box 1 is placed on top of the middle sand box 31, allowing the upper plug 34 of the middle sand box 31 to be partially inserted into the slot 10 at the lower end of the upper and lower sand boxes 1. Then, the locking assembly 8 on the outside of the upper sand box 1 is operated again, performing the same operation as above, allowing for quick plug-in and locking of the upper sand box 1 and the middle sand box 31, facilitating rapid assembly and effectively improving work efficiency. Furthermore, several heat-absorbing copper pipes 62 contact the sand iron filling the inner cavity of the upper sand box 1, lower sand box 2, and middle sand box 31. During casting, the sand iron absorbs heat and transfers it to the heat-absorbing copper pipes 62, which then quickly conduct heat to the heat dissipation copper plate 61. The heat dissipation copper plate 61 and its outer heat dissipation fins 63 effectively and continuously dissipate heat, effectively improving the product cooling efficiency.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A casting sand box for a planetary support structure of a wind turbine generator set, comprising an upper sand box and a lower sand box, characterized in that, A heightening assembly is provided between the upper sand box and the lower sand box; The heightening assembly includes a middle sand box disposed between the upper sand box and the lower sand box. Side grooves are provided around the outer perimeter of the middle sand box, the upper sand box, and the lower sand box. Heat dissipation components are installed in the inner cavities of the side grooves. Insert blocks are provided on both sides of the upper and lower ends of the middle sand box. Locking grooves are provided on the outer sides of the insert blocks. Slots for insertion into the insert blocks are provided on both sides of the lower end of the upper sand box and both sides of the upper end of the lower sand box. Locking components for insertion into the locking grooves are provided on both sides of the upper sand box and the lower sand box.

2. The casting sand box for a planetary carrier of a wind turbine generator set according to claim 1, characterized in that, The two sets of locking components each include limiting posts disposed on both sides of the upper and lower sand boxes. An L-shaped plate is movably inserted into the outer side of the limiting post. Locking blocks are equidistantly installed on the inner side of the L-shaped plate. Corresponding through grooves are provided on both sides of the upper and lower sand boxes, and the through grooves are connected to the slots. Spring rods are equidistantly installed in the inner cavity of the L-shaped plate. Mounting grooves corresponding to the positions of the spring rods are provided on both sides of the upper and lower sand boxes. The end of the spring rod away from the L-shaped plate is installed in the inner cavity of the mounting groove. One end of the locking block passes through the through groove and extends into the inner cavity of the slot, where it is inserted into the locking groove on the outer side of the locking block. Pull blocks are installed on the outer side of the L-shaped plate.

3. The casting sand box for a planetary carrier of a wind turbine generator set according to claim 1, characterized in that, Positioning posts are installed around both ends of the middle sand box, and insertion holes are provided around the lower end of the upper sand box and the upper end of the lower sand box for insertion.

4. The casting sand box for a planetary carrier of a wind turbine generator set according to claim 1, characterized in that, Multiple locking blocks are provided on both the upper and lower sides of the medium sand box, and locking slots for interlocking are provided on both the lower sides of the upper sand box and the upper sides of the lower sand box.

5. The casting sand box for a planetary carrier of a wind turbine generator set according to claim 1, characterized in that, The upper and lower sand boxes are the same size and shape. The upper part of the inner cavity of the upper sand box and the lower part of the inner cavity of the lower sand box are connected with mesh belts. Lifting piles are symmetrically installed in the inner cavities of two side grooves on the outside of the upper sand box, the lower sand box and the middle sand box.

6. The casting sand box for a planetary carrier of a wind turbine generator set according to claim 1, characterized in that, The heat dissipation assembly includes a heat dissipation copper plate installed in the inner cavity of the side slot. Heat dissipation fins are integrally connected at equal intervals on one side of the heat dissipation copper plate. Several heat-absorbing copper tubes are connected to the end of the heat dissipation copper plate away from the heat dissipation fins. The end of the heat-absorbing copper tubes away from the heat dissipation copper plate passes through the side slot and extends to its outer side.

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