Special equipment for shaping fan impeller

Abstract

The application discloses a special equipment for fan impeller shaping, which comprises a base, an electric rotating device arranged on the base, a vertical moving device slidingly arranged on the base, a mounting seat arranged on the vertical moving device, an angle adjusting mechanism arranged on the mounting seat, a shaping mechanism assembly connected to the mounting seat, the shaping mechanism assembly comprising a component mounting rack rotatably connected to the mounting seat and a shaping seat rotatably connected to the component mounting rack, the middle part of the shaping seat being rotatably connected to the component mounting rack, the component mounting rack being provided with an oscillating device, the component mounting rack being provided with an upper limit sensor and a lower limit sensor, one end of the component mounting rack close to the front disc being provided with a heating component, the first end of the shaping seat being connected to the oscillating device, the second end of the shaping seat being provided with a shaping seat rolling support component, the shaping seat being provided with an angle pointer, and the component mounting rack being provided with an auxiliary support component.

Description

Technical Field

[0001] This invention relates to the field of wind turbine impeller manufacturing technology, and in particular to a special equipment for shaping wind turbine impellers. Background Technology

[0002] In large industrial centrifugal fans used in the cement and steel industries, the impeller, a core component, inevitably deforms during the assembly and welding process, particularly the front disc of the impeller, requiring correction. Currently, the main methods involve workers using fire to heat the deformed area and then hammering it, or welding a bracket to the front disc and using jacks to support and reshape it. However, these methods are difficult to control; excessive hammering or jacking necessitates reversing the hammering or jacking, making the process cumbersome, labor-intensive, time-consuming, inefficient, and posing safety hazards.

[0003] Currently, Chinese patent application publication number CN112170551A discloses an automatic shaping mechanism for the front disc of a large wind turbine impeller. This patent uses a shaping block for shaping, but it cannot control the shaping accuracy. It requires multiple forgings using the shaping block to achieve the shaping purpose, resulting in low accuracy. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings and defects of the prior art by providing a special equipment for shaping wind turbine impellers, thereby solving the above-mentioned problems.

[0005] The technical problem solved by this invention can be achieved by the following technical solutions:

[0006] Specialized equipment for wind turbine impeller shaping includes:

[0007] Base;

[0008] An electric rotating device is mounted on the base to support the impeller;

[0009] A vertically moving device that is slidably mounted on the base;

[0010] A mounting base is provided on the vertical moving device, and the mounting base is provided with an angle adjustment mechanism;

[0011] A shaping mechanism assembly connected to the mounting base includes a component mounting bracket rotatably connected to the mounting base and a shaping seat rotatably connected to the component mounting bracket. The middle part of the shaping seat is rotatably connected to the component mounting bracket. The component mounting bracket is provided with a swing device, an upper limit sensor, and a lower limit sensor. A heating component is provided at one end of the component mounting bracket near the front plate. A first end of the shaping seat is connected to the swing device. A rolling support component for the shaping seat is provided at the second end of the shaping seat. An angle pointer corresponding to the upper limit sensor and the lower limit sensor is provided on the shaping seat. The component mounting bracket is provided with a rolling support component for the shaping seat to reduce the frictional resistance between the bottom surface of the shaping seat and the upper surface of the front plate. An auxiliary support component is also provided on the component mounting bracket.

[0012] A control device connected to an electric rotating device, a vertical moving device, a heating component, an upper limit sensor, a lower limit sensor, a swinging device, and auxiliary support components.

[0013] In a preferred embodiment of the present invention, the shaping seat rolling support component includes a pair of support wheel assemblies disposed on both sides of the second end of the shaping seat by means of elastic components.

[0014] In a preferred embodiment of the present invention, the heating element includes a high-frequency induction coil.

[0015] In a preferred embodiment of the present invention, the swinging device includes a hydraulic cylinder fixed on a component mounting bracket, the output end of the hydraulic cylinder being hinged to a pin on the first end of the shaping seat.

[0016] In a preferred embodiment of the present invention, the component mounting bracket is connected to the mounting base via a rotating shaft, and the angle adjustment mechanism includes an angle adjustment block fixed on the mounting base and a pair of adjustment bolts connected to the angle adjustment block.

[0017] In a preferred embodiment of the present invention, the vertical moving device includes a movable base plate slidably disposed on a base, a vertical slide rail provided on the movable base plate, a mounting seat slidably disposed on the vertical slide rail, a vertical lift provided on the movable base plate, the output end of the vertical lift being connected to a vertical lead screw, and one side of the mounting seat being threadedly connected to the vertical lead screw.

[0018] In a preferred embodiment of the present invention, the component mounting bracket is provided with shaft holes on both sides of the middle portion, and the shaping seat is provided with a pin that mates with the shaft holes in the middle portion.

[0019] In a preferred embodiment of the present invention, one end of the angle pointer is fixed to the end of the pin.

[0020] In a preferred embodiment of the present invention, the auxiliary support components are a pair, respectively disposed on both sides of the front end of the component mounting frame. Each auxiliary support component includes a fixing block and a cylinder connected to the fixing block. The output end of the cylinder is connected to a clamping block, and the clamping block has an inclined support surface that cooperates with the bottom of the front plate.

[0021] In a preferred embodiment of the present invention, the electric rotating device includes a base, a rotating support platform, an insertion indexing mechanism, a rotation drive device, and a control device, as disclosed in Chinese Patent Application Publication No. CN115673607A, which describes a rotary table tooling for impeller positioning and welding and an impeller welding method.

[0022] By adopting the above technical solution, this invention utilizes the cooperation between various components to achieve automatic detection of front disc deformation and precise control of shaping and pressing amount, thereby improving production efficiency, reducing the labor intensity of workers, and improving product quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a partial explosion diagram of one embodiment of the present invention during operation.

[0025] Figure 2 This is a front sectional view of one embodiment of the present invention during operation.

[0026] Figure 3 This is a top view of one embodiment of the present invention in operation.

[0027] Figure 4 This is a side view of one embodiment of the present invention in operation.

[0028] Figure 5 This is a schematic diagram of the structure of a partial protrusion on the front disc of the impeller.

[0029] Figure 6 This is a schematic diagram of the structure of an embodiment of the present invention with the electric rotating device omitted.

[0030] Figure 7 yes Figure 6 A structural diagram viewed from another angle.

[0031] Figure 8 yes Figure 6 A structural diagram omitting the shaping mechanism components.

[0032] Figure 9 yes Figure 8 A structural diagram viewed from another angle.

[0033] Figure 10 yes Figure 8 A partial sectional view from the front.

[0034] Figure 11 This is a schematic diagram of the structure of a shaping mechanism component according to an embodiment of the present invention.

[0035] Figure 12 yes Figure 11 A structural diagram viewed from another angle.

[0036] Figure 13 yes Figure 11 The front sectional view.

[0037] Figure 14 This is a schematic diagram of the structure of the shaping mechanism component according to an embodiment of the present invention, omitting the shaping seat.

[0038] Figure 15 yes Figure 14 A structural diagram viewed from one angle.

[0039] Figure 16 yes Figure 14 A structural schematic diagram from another angle (with partial cross-section).

[0040] Figure 17 This is a schematic diagram of the structure of a shaping seat according to an embodiment of the present invention.

[0041] Figure 18 yes Figure 17 A structural diagram viewed from another angle.

[0042] Figure 19 This is a front view of a shaping seat rolling support component according to an embodiment of the present invention.

[0043] Figure 20 yes Figure 19 A sectional view. Detailed Implementation

[0044] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention is further described below.

[0045] See Figures 1 to 20 The wind turbine impeller shaping equipment shown includes a base 100, an electric rotating device 200, a vertical moving device 300, a mounting base 400, and a shaping mechanism assembly 500.

[0046] An electric rotating device 200 is mounted on the base 100 and supports the impeller 10, allowing the impeller to rotate. The electric rotating device 200 can be a common rotary motor, with the impeller 10 fixed to the center, enabling the motor to drive the impeller to rotate. In this embodiment, the electric rotating device 200 may also include the base, rotating support platform, insertion hole indexing mechanism, rotating drive device, and control device disclosed in Chinese Patent Application Publication No. CN115673607A, which comprises an impeller positioning and welding rotary table tooling and impeller welding method. Utilizing the electric rotating device composed of the base, rotating support platform, insertion hole indexing mechanism, rotating drive device, and control device of this patent allows for further control of rotational accuracy. The base, rotating support platform, insertion hole indexing mechanism, rotating drive device, and control device disclosed in Chinese Patent Application Publication No. CN115673607A are not described in detail here, as they represent prior art disclosed in that patent.

[0047] The vertical moving device 300 is slidably mounted on the base 100. In this embodiment, the vertical moving device 300 includes a movable base plate 320 slidably mounted on a slide rail 310 of the base 100. A limiting bolt 321 is provided on the movable base plate 320 to facilitate movement into position and locking. A limiting plate 311 is provided on the slide rail 310 to prevent excessive sliding. A vertical slide rail 330 is provided on the movable base plate 320, and a mounting seat 400 is slidably mounted on the vertical slide rail 330. Preferably, a vertical guide rod 331 is provided on the vertical slide rail 330, and the mounting seat 400 is connected via a guide rod slider 332 that cooperates with the vertical guide rod 331 and the vertical slide rail 330. A vertical lifting mechanism 340 is provided on the movable base plate 320. The output end of the vertical lifting mechanism 340 is connected to a vertical lead screw 350, and one side of the mounting seat 400 is connected to the vertical lead screw 350 via a lead screw nut 360. Therefore, the forward and reverse rotation of the vertical lift 340 can drive the mounting base 400 to rise and fall.

[0048] An angle adjustment mechanism 410 is provided on the mounting base 400. In this embodiment, the angle adjustment mechanism 410 includes an angle adjustment block 411 fixed on the mounting base 400 and a pair of adjustment bolts 412 connected to the angle adjustment block 411. By changing the depth to which the pair of adjustment bolts 412 are screwed into the angle adjustment block 411, the angle between the head support surface of the pair of adjustment bolts 412 and the horizontal plane can be changed. The component mounting bracket 510 of the shaping mechanism assembly 500 is connected to the shaft hole 403 of the mounting base 400 through a rotating shaft 511. The component mounting bracket 510 can rotate around the rotating shaft 511. The back of the component mounting bracket 510 rests on the head support surface of the pair of adjustment bolts 412, so the angle of the shaping mechanism assembly 500 can be changed by the pair of adjustment bolts 412. An angle scale 401 is provided on the mounting base 400, and an indicator needle 402 corresponding to the angle scale 401 is provided on the back of the component mounting bracket 510 for easy acquisition of the tilt angle.

[0049] The shaping mechanism assembly 500 includes a component mounting bracket 510 rotatably connected to the mounting base 400 via a rotating shaft 511, and a shaping seat 520 rotatably connected to the component mounting bracket 510. The shaping seat 520 is generally Z-shaped, with its second end 520b close to the front plate 11 and positioned higher, and its first end 520a far from the front plate 11 and positioned lower. The shaping seat 520 is rotatably connected to the component mounting bracket 510 at its center. Preferably, the component mounting bracket 510 has shaft holes 511 on both sides of its center. The shaping seat 520 has a pin 521 that mates with the shaft hole 513 at its center. The pin 521 does not rotate relative to the shaping seat 520. A screw hole 522 corresponding to the side of the pin 521 can be provided at the bottom of the center of the shaping seat 520. The pin 521 is fixed in the shaping seat 520 by screwing a set screw 523 into the screw hole 522. Therefore, when the first end 520a of the shaping seat 520 is subjected to an upward or downward force, the pin 521 of the shaping seat 520 can rotate around the shaft hole 511.

[0050] The component mounting bracket 510 is equipped with a swing device 600, which includes a double trunnion hydraulic cylinder 610 fixed on the component mounting bracket 510. The output end 611 of the double trunnion hydraulic cylinder 610 is hinged to the pin 524 on the first end 520a of the shaping seat 520 via a connecting arm 612. Therefore, when the double trunnion hydraulic cylinder 610 is working, it can drive the pin 521 of the shaping seat 520 to rotate around the shaft hole 511.

[0051] An upper limit sensor 512a and a lower limit sensor 512b are provided on the outer side of the component mounting bracket 510. The upper limit sensor 512a and the lower limit sensor 512b are fixed to the outer side plate of the component mounting bracket 510 by bolts, so the positions of the upper limit sensor 512a and the lower limit sensor 512b can be adjusted. An angle pointer 525 corresponding to the upper limit sensor 512a and the lower limit sensor 512b is provided on the shaping seat 520. One end of the angle pointer 525 is fixed to the end of the pin 521 near the upper limit sensor 512a and the lower limit sensor 512b. The other end of the angle pointer 525 will move between the upper limit sensor 512a and the lower limit sensor 512b as the second end 520b of the shaping seat 520 moves up and down on the upper surface of the front plate.

[0052] A heating element 530 is provided at one end of the component mounting bracket 510 near the front disc 11. The heating element 530 includes a high-frequency induction coil 531, and an induction coil mounting base 532 is provided on the component mounting bracket 510.

[0053] The second end 520b of the shaping seat 520 is provided with a shaping seat rolling support component 540. The shaping seat rolling support component 540 includes a pair of support wheel assemblies disposed on both sides of the second end 520b of the shaping seat 520 by elastic components. Specifically, each support wheel assembly includes a fixed seat 541 fixed to the side of the second end 520b of the shaping seat 520. The middle part of the fixed seat 541 is provided with a spring groove 543 for accommodating a spring 542. A support roller seat 544 is floatingly disposed on the top of the fixed seat 541. The support roller 545 is mounted on the support roller seat 544. The top end of the floating bolt 546 is at the top of the fixed seat 541, and the bottom end passes through the spring groove 543 and the inside of the spring 542 and is connected to the support roller seat 544. Therefore, the spring 542 always applies elastic force to the support roller seat 544 to ensure the pressing effect of the front plate of the support roller 545. Rolling friction is used instead of sliding friction to reduce the frictional resistance between the bottom surface of the shaping seat 520 and the upper surface of the front plate.

[0054] The component mounting bracket 510 is provided with auxiliary support components 550. In this embodiment, there is a pair of auxiliary support components 550, which are respectively provided on both sides of the front end of the component mounting bracket 510. Each auxiliary support component 550 includes a fixing block 551 and a cylinder 552 connected to the fixing block 551. The output end 553 of the cylinder 552 is connected to a clamping block 554. The clamping block 554 has an inclined support surface 555 that cooperates with the bottom of the front plate.

[0055] The electric rotating device 200, the vertical moving device 300, the heating component 530, the upper limit sensor 512a, the lower limit sensor 512b, the swinging device 600, and the auxiliary support component 550 are connected to the control device. The control device enables the electric rotating device 200, the vertical moving device 300, the heating component 530, the swinging device 600, and the auxiliary support component 550 to work, and can be associated with the upper limit sensor 512a and the lower limit sensor 512b. The connection between the control device and each device and component is existing technology and will not be described in detail here.

[0056] The working process of this invention is as follows:

[0057] First, the tilt angle of the shaping mechanism assembly 500 is adjusted using the angle adjustment mechanism 410 to match the taper tilt angle of the impeller front disc. The vertical moving device 300 is then pushed to adjust the height of the mounting base 400, ensuring that the position and height of the shaping mechanism assembly 500 are compatible with the impeller 10. Next, the electric rotating device 200 is activated to slowly rotate the impeller 10, finding the lowest position of the front disc on the impeller surface. The upper limit sensor 512a is then positioned approximately 1 mm from the angle pointer 525, enabling it to be triggered. Then, the deformed protrusion area of ​​the front disc is inspected, and the position of the lower limit sensor 512b is adjusted so that the angle pointer 525 rotates within a certain range, i.e., the allowable range of deformation. When the start button is pressed, during the rotation of the impeller 10, if there is a deformed protrusion on the front disc 11, the protrusion will push against the bottom of the second end 520b of the shaping seat 520, causing the second end 520b of the shaping seat 520 to be lifted. This will cause the tail end of the angle pointer 525 to rotate downwards, triggering the lower proximity sensor 512b. At this time, the high-frequency induction coil 531 will be energized and heated to quickly heat the deformed protrusion on the front disc. The deformed protrusion on the front disc is heated during rotation. When the impeller front disc rotates past the deformed protrusion area, the impeller rotates back by a set angle, causing the highest point of the deformed protrusion on the front disc to return to the bottom of the second end 520b of the shaping seat 520. The auxiliary support component 550 will then operate, and the cylinder 552 will drive the clamping block 554 to move towards the bottom of the impeller front disc. The inclined support surface 555 of the clamping block 554 will then push against the lower edge of the impeller front disc. Next, the dual trunnion hydraulic cylinder 610 actuates, causing the first end 520a of the shaping seat 520 to move upward, so that the second end 520b of the shaping seat 520 presses down on the deformed protrusion of the impeller front disc. The tail end of the angle pointer 525 also rotates upward until the tail end of the angle pointer 525 approaches the upper limit sensor 512a, at which point the dual trunnion hydraulic cylinder 610 stops. The angle pointer 525 is relatively long, so it can amplify the display effect of the front disc deformation, enabling more accurate detection and correction of the front disc deformation. Then, the electric rotating device 200 drives the impeller to continue rotating. When there is a deformed protrusion on the front disc 11, the deformed protrusion will push against the bottom of the second end 520b of the shaping seat 520, causing the second end 520b of the shaping seat 520 to be lifted, causing the tail end of the angle pointer 525 to rotate downward, triggering the lower proximity sensor 512b. At this time, the high-frequency induction coil 531 is energized and heated, and the entire system repeats the shaping action until the deformation of the impeller front disc is kept within the design technical requirements.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. Specialized equipment for shaping the impeller of a fan, characterized in that, The utility model relates to a kind of vertical moving device for the front disc of the leaf wheel, including: Base; Electric rotating device for supporting impeller is arranged on the base; Vertically moving device is slidably arranged on the base; Mounting seat is arranged on the vertically moving device, and angle adjusting mechanism is arranged on the mounting seat; Shaping mechanism assembly is connected on the mounting seat, and the shaping mechanism assembly includes component mounting frame rotatably connected on the mounting seat and shaping seat rotatably connected on component mounting frame, the middle part of the shaping seat is rotatably connected on component mounting frame, the component mounting frame is provided with swing device, the component mounting frame is provided with upper limit sensor and lower limit sensor, the component mounting frame is provided with heating component near one end of the front disc, the first end of the shaping seat is connected with swing device, the second end of the shaping seat is provided with shaping seat rolling support component, the shaping seat is provided with angle pointer corresponding to the upper limit sensor and lower limit sensor, the component mounting frame is provided with shaping seat rolling support component, to reduce the frictional resistance of the bottom surface of shaping seat and the upper surface of front disc, the component mounting frame is also provided with auxiliary support component; Control device is connected with electric rotating device, vertically moving device, heating component, upper limit sensor, lower limit sensor, swing device, auxiliary support component.

2. The special equipment for shaping of the fan impeller according to claim 1, characterized in that The shaping seat rolling support component includes a pair of support wheel assemblies arranged on both sides of the second end of the shaping seat through elastic components.

3. The special equipment for shaping of the fan impeller according to claim 1, characterized in that, The heating component includes a high-frequency induction coil.

4. The special equipment for shaping of the fan impeller according to claim 1, characterized in that, The swing device includes an oil cylinder fixed to the component mounting frame, and the output end of the oil cylinder is hinged to the pin shaft on the first end of the shaping seat.

5. The special equipment for shaping of the fan impeller according to claim 1, characterized in that, The component mounting frame is connected to the mounting seat by a rotating shaft, and the angle adjusting mechanism includes an angle adjusting block fixed to the mounting seat and a pair of adjusting bolts connected to the angle adjusting block.

6. The special equipment for shaping of the fan impeller according to claim 1, characterized in that The vertically moving device includes a moving base slidably arranged on the base, the moving base is provided with a vertical slide rail, the mounting seat is slidably arranged on the vertical slide rail, the moving base is provided with a vertical elevator, the output end of the vertical elevator is connected to a vertical lead screw, and one side of the mounting seat is connected to the vertical lead screw by screw thread.

7. The special equipment for shaping of the fan impeller according to claim 1, characterized in that, The middle part of the component mounting frame is provided with a shaft hole, and the middle part of the shaping seat is provided with a pin shaft matched with the shaft hole.

8. The special equipment for shaping of the fan impeller according to claim 7, characterized in that, One end of the angle pointer is fixed to the end of the pin shaft.

9. The special equipment for shaping of the fan impeller according to claim 1, characterized in that, The auxiliary support component is a pair of components, respectively arranged on both sides of the front end of the component mounting frame, each auxiliary support component includes a fixed block and a gas cylinder connected to the fixed block, the output end of the gas cylinder is connected to a clamping block, and the clamping block has an inclined support surface matched with the bottom of the front disc.

10. The special equipment for shaping of the fan impeller according to claim 1, characterized in that, The electric rotating device includes a rotating motor, and the middle part of the leaf wheel is fixed to the rotating motor, and the rotating motor drives the leaf wheel to rotate.

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