A wind wheel assembly pressing tool

Abstract

The application discloses a wind wheel assembly pressing tool, which comprises a coaxial upper die and lower die, an annular groove arranged on the upper end surface of the lower die, the annular groove being coaxial with the lower die, a screw threadedly connected with the lower die, the screw being coaxial with the lower die, a die ejector pin coaxial with the screw, the lower end of the die ejector pin being arranged in the lower die and clamped in the lower die, the upper end of the die ejector pin being arranged between the lower die and the upper die, springs capable of contacting the die ejector pin and the screw at both ends, the die ejector pin being movably connected with the lower die through the springs, a clamping groove one arranged on the lower end surface of the upper die, the die ejector pin being capable of being clamped into the clamping groove one, a plurality of fixing strips evenly distributed on the lower die with the center of the lower die as an axis, one end of the fixing strip penetrating into the annular groove from the outside of the lower die, and a plurality of supporting strips, two of which form a group, one end of the supporting strip penetrating into the annular groove from the outside of the lower die. The wind wheel assembly pressing tool has the advantages that different wind wheels with different specifications of fan blades can be conveniently fixed, and the installation stability is improved.

Description

Technical Field

[0001] This invention relates to the technical field of wind turbine installation fixtures, and in particular to a wind turbine assembly clamping fixture. Background Technology

[0002] The wind turbine assembly requires special tooling for clamping, but the blades on the wind turbine are very thin and have inconsistent shapes, making them difficult to fix. Summary of the Invention

[0003] The present invention aims to overcome the shortcomings of existing technologies in which it is difficult to fix different wind turbines with different specifications of wind blades, and provides a wind turbine assembly clamping fixture that facilitates the fixing of different wind turbines with different specifications of wind blades and improves installation stability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A wind turbine assembly clamping fixture includes: The lower mold is placed at the bottom of the clamping fixture; The upper mold is placed above the lower mold, and the upper mold and the lower mold are coaxial; An annular groove is placed on the upper end face of the lower mold, and the annular groove is coaxial with the lower mold; A screw is placed on the lower end face of the lower mold, and the screw is threadedly connected to the lower mold and is coaxial with the lower mold; The mold ejector pin is coaxial with the screw. The lower end of the mold ejector pin is placed inside the lower mold, and the upper end of the mold ejector pin is placed between the lower mold and the upper mold. A spring is placed between the lower end of the mold ejector pin and the upper end of the screw, and the mold ejector pin is movably connected to the lower mold via the spring; Slot 1 is placed on the lower end face of the upper mold, and slot 1 corresponds to the mold ejector pin; Several fixing strips are evenly distributed on the lower mold with the center of the lower mold as the axis, and one end of each fixing strip passes through the annular groove from the outside of the lower mold. Several support bars are arranged in pairs, with each pair of support bars placed on either side of a fixed bar. Each pair of support bars corresponds to one fixed bar, and one end of each support bar passes through the annular groove from the outside of the lower mold.

[0005] In use, the lower mold is installed on a flat surface, and then the upper mold is inserted into the machine that applies pressure, aligning with the center of the lower mold. The impeller is then placed into the annular groove, and the bushing to be installed is placed on the mold ejector pin. To improve stability, a fixing strip is inserted into the annular groove to hold the impeller in place, and then a support strip is inserted to enhance the stability of the fixing strip. The position of the fixing strip can be freely inserted and removed according to the different impeller positions. Next, pressure is applied with the upper mold, and the mold ejector pin is inserted into the slot one, pressing the bushing into the impeller. To accommodate impellers of different heights, the mold ejector pin is adjusted in height by the slot one and the spring. The spring can be replaced by removing the screws. This achieves the purpose of conveniently fixing different impellers with different specifications of impellers and improving installation stability.

[0006] Preferably, the upper surface of the lower mold is provided with a second retaining groove, which is coaxial with the mold ejector pin. The inner diameter of the second retaining groove is smaller than the minor diameter of the annular groove. The upper end of the mold ejector pin passes through the second retaining groove and is positioned above the lower mold. The second retaining groove is for accommodating the impeller with a central protrusion.

[0007] Preferably, the lower mold has several through holes, each communicating with an annular groove. The through holes have a square cross-section and correspond one-to-one with a fixing strip. One end of each fixing strip passes through a through hole and is placed within the annular groove. The square shape of the through holes facilitates fixing the fixing strip and prevents it from rotating.

[0008] Preferably, one end of the fixing strip is provided with a flexible strip, which is placed in an annular groove, and one end of the flexible strip is fixedly connected to one end of the fixing strip. The flexible strip has low hardness and is unlikely to damage the thin fan blades, while also preventing the fan blades from rotating.

[0009] Preferably, the flexible strip is provided with a foam sleeve, which covers the outer surface of the flexible strip and is connected to the outer surface of the flexible strip. The foam sleeve can reduce the scratches on the fan blades caused by the fixing strip.

[0010] Preferably, the inner surface of the first through hole is provided with two second through holes, each corresponding to a support strip. The support strip passes through the second through hole and is placed in the annular groove, with the support strip tightly against the fixing strip. The two second through holes facilitate the insertion of the support strip, which not only stabilizes the fixing strip but also makes it easy to observe the insertion position of the fixing strip.

[0011] Preferably, the support strip is provided with a second foam sleeve, which wraps around the outer surface of the support strip and is connected to the outer surface of the support strip. The second foam sleeve is to reduce damage to the fan blades caused by the support strip.

[0012] Preferably, the lower end face of the upper mold is provided with a third retaining groove, which is coaxial with the first retaining groove, and the inner diameter of the third retaining groove is larger than the inner diameter of the first retaining groove. The third retaining groove facilitates fixing the protruding edge of the bushing and makes it easier to drive the bushing into the impeller.

[0013] Preferably, an anti-slip plate is provided on the inner bottom surface of the annular groove, and the anti-slip plate is fixedly connected to the inner bottom surface of the annular groove. The anti-slip plate prevents the bottom surface of the impeller from slipping and rotating.

[0014] Preferably, the lower mold has several mounting holes evenly distributed on its base, and the upper part of the upper mold has a hexagonal cross-section. The mounting holes secure the lower mold, and the hexagonal shape of the upper mold facilitates installation onto the press without slippage.

[0015] The beneficial effects of this invention are: it facilitates the fixing of different impellers with blades of different specifications and improves installation stability; the second slot is for placing impellers with a central protrusion; the first through hole is square to facilitate fixing the fixing strip and prevent it from rotating; the soft strip has low hardness and is unlikely to damage the thin blades, while also preventing the blades from rotating; the first foam sleeve reduces scratches on the blades caused by the fixing strip; the two second through holes facilitate the insertion of the support strip, which not only stabilizes the fixing strip but also makes it easy to observe the insertion position; the second foam sleeve reduces damage to the blades caused by the support strip; the third slot facilitates fixing the protruding edge of the bushing and better drives the bushing into the impeller; the anti-slip plate prevents the bottom surface of the impeller from slipping and rotating; the mounting hole can fix the lower mold, and the hexagonal upper end of the upper mold facilitates installation on the press and prevents slippage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A magnified view of detail A; Figure 3 yes Figure 1 A magnified view of detail B; Figure 4 This is a cross-sectional view of the main view of the present invention; Figure 5 yes Figure 3 A magnified view of detail C.

[0017] In the diagram: 1. Lower mold, 2. Upper mold, 3. Annular groove, 4. Screw, 5. Ejector pin, 6. Spring, 7. Slot 1, 8. Fixing strip, 9. Slot 2, 10. Through hole 1, 11. Flexible strip, 12. Foam sleeve 1, 13. Through hole 2, 14. Support strip, 15. Foam sleeve 2, 16. Slot 3, 17. Anti-slip plate, 18. Mounting hole. Detailed Implementation

[0018] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 and Figure 4 As shown, a wind turbine assembly clamping fixture includes: an upper mold 2 positioned above a lower mold 1, coaxial with the lower mold 1; an annular groove 3 positioned on the upper end face of the lower mold 1, coaxial with the lower mold 1; a screw 4 positioned on the lower end face of the lower mold 1, threadedly connected to the lower mold 1, coaxial with the lower mold 1; a mold ejector pin 6 coaxial with the screw 4, the lower end of the mold ejector pin 6 positioned inside the lower mold 1 and engaged within the lower mold 1, the upper end of the mold ejector pin 6 positioned between the lower mold 1 and the upper mold 2; a spring 5 positioned between the lower end of the mold ejector pin 6 and the upper end of the screw 4, with space for movement, the two ends of the spring capable of contacting the mold ejector pin 6 and the screw 4; and a mold... Ejector pin 6 is movably connected to lower mold 1 via spring 5; slot 7 is placed on the lower end face of upper mold 2, and slot 7 corresponds to mold ejector pin 6, allowing mold ejector pin 6 to be inserted into slot 7; several fixing strips 8 are evenly distributed on lower mold 1 with the center of lower mold 1 as the axis, and one end of fixing strip 8 passes through annular groove 3 from the outside of lower mold 1; several support strips 14 are arranged in groups of two, with two support strips 14 placed on both sides of fixing strip 8 and close to fixing strip 8, and one group of support strips 14 corresponds to one fixing strip 8, and one end of support strip 14 passes through annular groove 3 from the outside of lower mold 1.

[0020] like Figure 1 and Figure 4 As shown, the upper surface of the lower mold 1 is provided with a second groove 9. The second groove 9 is coaxial with the mold ejector pin 6. The inner diameter of the second groove 9 is smaller than the small diameter of the annular groove 3. The upper edge of the second groove 9 needs to have an arc to ensure that the impeller is fixed while not damaging the impeller. The upper end of the mold ejector pin 6 passes through the second groove 9 and is placed above the lower mold 1.

[0021] like Figure 2 , Figure 3 and Figure 5 As shown, the lower mold 1 is provided with several through holes 10, which are connected to the annular groove 3. The cross-sectional shape of the through holes 10 is square. The through holes 10 correspond one-to-one with the fixing strips 8. One end of the fixing strip 8 passes through the through hole 10 and is placed in the annular groove 3. The cross-sectional shape of the fixing strip 8 is square. The support strip 14 passes through the through hole 10 and is placed in the annular groove 3. The side of the support strip 14 should not be too tight or too loose with the inner side of the through hole 10, otherwise it will be difficult to pull out or it will shake.

[0022] like Figure 2 , Figure 4 and Figure 5As shown, a flexible strip 11 is provided at one end of the fixing strip 8. The flexible strip 11 is placed in the annular groove 3. One end of the flexible strip 11 is fixedly connected to one end of the fixing strip 8. The material of the flexible strip 11 can be similar to hard rubber, which has hardness and can swing back.

[0023] like Figure 5 As shown, the soft strip 11 is provided with a foam sleeve 12, which covers the outer surface of the soft strip 11, including the top of the soft strip 11, and the foam sleeve 12 is connected to the outer surface of the soft strip 11.

[0024] like Figure 2 and Figure 3 As shown, two through holes 13 are provided on the inner side of through hole 10. Through holes 13 correspond one-to-one with support bars 14. After passing through through holes 13, support bars 14 are placed in annular groove 3 and are tightly attached to fixing bars 8.

[0025] like Figure 2 As shown, a second foam sleeve 15 is provided on the support strip 14. The second foam sleeve 15 covers the outer surface of the support strip 14, including the top of the support strip 14, and the second foam sleeve 15 is connected to the outer surface of the support strip 14.

[0026] like Figure 4 As shown, the lower end face of the upper mold 2 is provided with a slot 3 16, which is coaxial with the slot 1 7. The inner diameter of the slot 3 16 is larger than the inner diameter of the slot 1 7, which facilitates fixing the edge of the upper end of the bushing.

[0027] like Figure 4 As shown, an anti-slip plate 17 is provided on the inner bottom surface of the annular groove 3. The anti-slip plate 17 is fixedly connected to the inner bottom surface of the annular groove 3. The anti-slip plate can be made of rubber, which has low hardness and will not damage the impeller, and also increases the friction to prevent the impeller from rotating.

[0028] like Figure 1 and Figure 4 As shown, the lower mold 1 has several mounting holes 18, which are evenly distributed on the base of the lower mold 1, so as to facilitate the installation and fixing of the lower mold 1 on the worktable with screws. The upper part of the upper mold 2 has a hexagonal cross-sectional shape.

[0029] In use, the lower mold 1 is installed on the flat surface through the mounting hole 18. Then, the upper mold 2 is inserted into the machine that applies pressure, corresponding to the slot 9 on the lower mold 1. The impeller is then placed into the annular groove 3, and the bushing to be installed is placed on the mold ejector pin 6. To improve stability, the fixing strip 8 is inserted into the annular groove 3, and the flexible strip 11 is used to hold the impeller in place. Then, the support strip 14 is inserted into the through hole 13 to enhance the stability of the flexible strip 11. The position of the flexible strip 11 can be adjusted according to the different impeller positions in the through hole 13. 10. Insert and remove the mold, then apply pressure with the upper mold 2. The pressure equipment is all existing technology. Different impellers require different equipment, which will not be elaborated here. The mold ejector pin 6 is inserted into the slot 1 7. The slot 3 16 fixes the protruding edge of the bushing and presses the bushing into the impeller. In order to adapt to impellers of different heights, the mold ejector pin 6 will be adjusted in height by the slot 1 7 and the spring 5. The spring 5 can be replaced by removing the screw 4. This achieves the purpose of conveniently fixing different impellers with different specifications of blades and improving installation stability.

Claims

1. A wind turbine assembly clamping fixture, characterized in that it comprises: The lower mold (1) is placed at the bottom of the clamping fixture; The upper mold (2) is placed above the lower mold (1), and the upper mold (2) and the lower mold (1) are coaxial; An annular groove (3) is placed on the upper end face of the lower mold (1), and the annular groove (3) is coaxial with the lower mold (1); Screw (4) is placed on the lower end face of the lower mold (1). The screw (4) is threadedly connected to the lower mold (1). The screw (4) is coaxial with the lower mold (1). The mold ejector pin (6) is coaxial with the screw (4). The lower end of the mold ejector pin (6) is placed inside the lower mold (1), and the upper end of the mold ejector pin (6) is placed between the lower mold (1) and the upper mold (2). A spring (5) is placed between the lower end of the mold ejector pin (6) and the upper end of the screw (4), wherein the mold ejector pin (6) is movably connected to the lower mold (1) through the spring (5); Slot 1 (7) is placed on the lower end face of the upper mold (2), and slot 1 (7) corresponds to the mold ejector pin (6); Several fixing strips (8) are evenly distributed on the lower mold (1) with the center of the lower mold (1) as the axis. One end of the fixing strip (8) passes through the annular groove (3) from the outside of the lower mold (1). Several support bars (14) are arranged in pairs and the two support bars (14) are placed on both sides of the fixed bar (8). Each pair of support bars (14) corresponds to one fixed bar (8). One end of the support bar (14) passes through the annular groove (3) from the outside of the lower mold (1).

2. The wind turbine assembly clamping fixture according to claim 1, characterized in that, The upper surface of the lower mold (1) is provided with a second groove (9), the second groove (9) is coaxial with the mold ejector pin (6), the inner diameter of the second groove (9) is smaller than the small diameter of the annular groove (3), and the upper end of the mold ejector pin (6) passes through the second groove (9) and is placed above the lower mold (1).

3. The wind turbine assembly clamping fixture according to claim 1, characterized in that, The lower mold (1) is provided with several through holes (10), which are connected to the annular groove (3). The cross-sectional shape of the through hole (10) is square. The through hole (10) corresponds to the fixing strip (8) one by one. One end of the fixing strip (8) passes through the through hole (10) and is placed in the annular groove (3). The cross-sectional shape of the fixing strip (8) is square. The support strip (14) passes through the through hole (10) and is placed in the annular groove (3).

4. The wind turbine assembly clamping fixture according to claim 3, characterized in that, One end of the fixing strip (8) is provided with a soft strip (11), the soft strip (11) is placed in the annular groove (3), and one end of the soft strip (11) is fixedly connected to one end of the fixing strip (8).

5. The wind turbine assembly clamping fixture according to claim 4, characterized in that, The soft strip (11) is provided with a foam sleeve (12), which wraps around the outer surface of the soft strip (11) and is connected to the outer surface of the soft strip (11).

6. The wind turbine assembly clamping fixture according to claim 3, characterized in that, Two through holes (13) are provided on the inner side of the through hole one (10). The through holes two (13) correspond one-to-one with the support strip (14). The support strip (14) passes through the through holes two (13) and is placed in the annular groove (3). The support strip (14) is close to the fixing strip (8).

7. The wind turbine assembly clamping fixture according to claim 6, characterized in that, The support strip (14) is provided with a second foam sleeve (15), which wraps around the outer surface of the support strip (14) and is connected to the outer surface of the support strip (14).

8. The wind turbine assembly clamping fixture according to claim 1, characterized in that, The lower end face of the upper mold (2) is provided with a slot three (16), the slot three (16) is coaxial with the slot one (7), and the inner diameter of the slot three (16) is larger than the inner diameter of the slot one (7).

9. A wind turbine assembly clamping fixture according to claim 2, 3, 4, or 6, characterized in that, The inner bottom surface of the annular groove (3) is provided with an anti-slip plate (17), and the anti-slip plate (17) is fixedly connected to the inner bottom surface of the annular groove (3).

10. The wind turbine assembly clamping fixture according to claim 1, characterized in that, The lower mold (1) is provided with a number of mounting holes (18), which are evenly distributed on the base of the lower mold (1). The upper part of the upper mold (2) has a hexagonal cross-sectional shape.

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