Fan air inlet spinning machine and fan air inlet spinning forming method

Abstract

The present invention relates to a fan air inlet spinning machine and an air inlet spinning forming method that can complete the forming of air inlets with different diameters of a fan without a forming die. The arc pressing mechanism is matched with the guide rail in the manual arc pressing lifting mechanism through a sliding sleeve longitudinal guide rail, and a forming die composed of a top wheel and a pressing wheel is arranged at the front of the arc pressing mechanism. A pair of transmission rollers sleeved on the transmission shaft can not only move along the transmission shaft but also rotate driven by the transmission shaft. Two gears are respectively connected to their respective transmission shafts, and both of the two gears are meshed with the gear on the power output shaft of the reducer and rotate in the same direction. The moving push-pull plate is clamped with the groove in the transmission roller, and the moving push-pull plate is driven by a translation handwheel through the cooperation of a T-shaped screw rod. The back of the top-leaning lifting component mechanism is fixedly connected to one side of the sliding sleeve, and the other side of the sliding sleeve is sleeved on the longitudinal guide rail in the top-leaning lifting column frame. The top-leaning translation component is matched with the transverse guide rail of the top-leaning translation component through the sliding sleeve, and the top-leaning translation component is driven by a handwheel to drive the T-shaped screw rod, and the T-shaped screw rod drives the top-leaning translation component to translate and move.

Description

Technical Field

[0001] The present invention relates to a wind turbine air inlet spinning machine and a wind turbine air inlet spinning forming method capable of forming air inlets with different diameters of the wind turbine without a forming die, belonging to the field of manufacturing wind turbine air inlet forming machines. Background Art

[0002] CN214078715U, named "Pressing Plate Device for Wind Turbine Air Inlet Spinning Machine", includes a fixed seat. One end of the fixed seat is fixedly connected with an upper fixing plate, and the other end of the fixed seat is fixedly connected with a lower fixing plate. The upper fixing plate and the lower fixing plate are arranged opposite to each other. One side of the upper fixing plate facing the lower fixing plate is connected with an upper bracket. A first sliding rod is slidably connected to the upper fixing plate. The first sliding rod is sleeved with a first spring. The first sliding rod is fixedly connected with the upper bracket. The first spring is located between the upper fixing plate and the upper bracket. The upper bracket is rotatably connected with an upper roller group. One side of the lower fixing plate facing the upper fixing plate is fixedly connected with a lower bracket. The lower bracket is rotatably connected with a lower roller group. A spacing is provided between the upper roller group and the lower roller group. Its disadvantage is that it cannot achieve the arc rolling forming of the edge of the wind turbine air inlet. Summary of the Invention

[0003] Design Purpose: To avoid the deficiencies in the background art, design a wind turbine air inlet spinning machine and a wind turbine air inlet spinning forming method capable of forming air inlets with different diameters of the wind turbine without a forming die.

[0004] Design solution: To achieve the above design objectives, in terms of structural design, the present invention has the following features: 1. The design that the manual arc pressing mechanism is controlled by the manual arc pressing lifting mechanism for its lifting is one of the technical features of the present invention. The purpose of this design is as follows: The manual arc pressing mechanism consists of a top wheel and a pressing wheel, where the top wheel is a fixed wheel and the pressing wheel is a moving wheel. It is an arc dynamic forming die for the edge of the air inlet of the fan. The purpose is to force the edge of the air inlet of the fan to be gradually pressed into an arc shape by the top wheel and the pressing wheel during the rotation process. Therefore, the size of the forming die opening between the pressing wheel and the top wheel can be controlled through the handwheel and the ball screw adjustment mechanism, and the forming of arc-shaped air inlets of different diameters can be completed. To achieve this goal, the manual arc pressing lifting mechanism controls the lifting of the manual arc pressing mechanism through the handwheel, ball screw, guide wheel, and the sliding sleeve sleeved on the guide rail, so that it matches the edge of the air inlet of the fan to be processed, that is, the die opening between the top wheel and the pressing wheel is opposite to the edge of the air inlet of the fan to be pressed. 2. The design that a pair of transmission rollers are respectively sleeved on the transmission shaft and can not only move along the transmission shaft but also rotate driven by the transmission shaft is the second technical feature of the present invention. The purpose of this design is as follows: Since there are multiple annular grooves on the wheel surfaces of the pair of transmission rollers, these annular grooves have two functions: First, the air inlet of the fan to be processed is welded to the cover plate. When the cover plate is stuck in the annular grooves of the pair of transmission rollers, the annular grooves lock the cover plate. Since the moving push-pull plate located below the annular grooves of the pair of transmission rollers is in clearance fit in the grooves of the transmission rollers and does not affect the transmission of the transmission rollers, the moving push-pull plate can drive the transmission rollers to move along the transmission shaft under the action of the T-shaped screw and the translation handwheel, so that the edge of the air inlet of the fan to be processed extends into the arc-shaped forming die opening formed by the top wheel and the pressing wheel. When the motor drives the gears on the two transmission shafts to rotate synchronously through the driving gear on the reducer, it can force the transmission rollers to rotate and then drive the edge of the air inlet of the fan to rotate. The edge of the air inlet of the fan is forced to be pressed into the required arc-shaped edge under the adjustment of the die opening gap between the top wheel and the pressing wheel. 3. The design that the top support lifting column frame drives the lifting of the top support lifting assembly, and the top support translation assembly can move horizontally along the top support lifting assembly is the third technical feature of the present invention. The purpose of this design is as follows: According to Newton's third law F=-F, when the top wheel and the pressing wheel in the arc pressing mechanism act on the edge of the air inlet of the fan to be pressed, a huge reaction force will be generated. Only when this reaction force is offset can the edge of the air inlet of the fan be pressed into the required shape by the arc-shaped die opening formed by the top wheel and the pressing wheel driven by the transmission rollers. Therefore, the design that the top support lifting assembly is driven by the top support lifting column frame to lift can adapt to the die pressing arc forming of the edges of air inlets of different diameters of fans, and the horizontal movement of the top support translation assembly along the top support lifting assembly can hold the air inlet of the fan to be processed, thereby offsetting the reverse reaction force generated during the die pressing forming of the edge of the air inlet of the fan. 4. The design that the front end of the top support translation assembly is equipped with a top support wheel is the fourth technical feature of the present invention.The purpose of such a design is as follows: Since the rolling surface of the abutting wheel and the cover plate of the blower to be abutted are in rolling contact, the friction generated between the two is small, which will not cause wear to the blower cover plate, and is conducive to the dynamic dissipation of the abutting force, avoiding damage to the cover plate. 5. The design of the sliding sleeve as a notched sliding sleeve is the fifth technical feature of the present invention. The purpose of such a design is as follows: When a notch is formed longitudinally in the sliding sleeve, it can form a socket fit with the longitudinal surface of the back of the guide rail to fix the guide rail, because only when the longitudinal surface of the back of the guide rail is firmly connected to the frame (machine plate), the guide rail will not deform when stressed. In this way, the stressed sliding sleeve can firmly hold the guide rail and smoothly move along the guide rail. 6. The design of the annular groove on the rolling surface of the transmission roller as a trapezoidal groove is the sixth technical feature of the present invention. The purpose of such a design is as follows: The trapezoidal annular groove is narrow at the bottom and wide at the top. Therefore, it can adapt to the clamping of cover plates of different thicknesses and at the same time has the function of locking the cover plate to prevent slipping between the transmission roller and the cover plate.

[0005] Technical solution 1: A spinning machine for the air inlet of a blower. One end of the frame base is provided with a manual arc pressing and lifting mechanism. The manual arc pressing mechanism is matched with the longitudinal guide rail in the manual arc pressing and lifting mechanism through a sliding sleeve, and the manual arc pressing mechanism is lifted and lowered by a T-shaped screw rod. The front part of the manual arc pressing mechanism is provided with a top wheel and a pressing wheel, and the pressing wheel is fixed to the bearing seat through a pressing wheel shaft and is driven by the T-shaped screw rod and the arc pressing hand wheel to lift and lower the pressing wheel; A pair of transmission rollers are respectively sleeved on the transmission shaft, and the pair of transmission rollers sleeved on the transmission shaft can not only move along the transmission shaft but also rotate driven by the transmission shaft. Both ends of the transmission shaft are respectively located on the support seats of the transmission rollers through sliding bearings. Two gears are respectively connected to their respective transmission shafts, and both gears are engaged with the gear on the power output shaft of the reducer. The moving push-pull plate is clamped with the groove in the transmission roller and is screwed with the thread of the T-shaped screw rod. The driving end of the T-shaped screw rod is equipped with a translation hand wheel; The abutting lifting column frame is fixed to the frame base. The back of the abutting lifting assembly is fixedly connected to one side of the sliding sleeve, and the other side of the sliding sleeve is sleeved on the longitudinal guide rail in the abutting lifting column frame. The abutting translation assembly is matched with the transverse guide rail in the abutting translation assembly through the sliding sleeve, and the abutting translation assembly is driven by a hand wheel to drive the T-shaped screw rod, and the T-shaped screw rod drives the abutting translation assembly to move horizontally.

[0006] Technical Solution 2: A method for spinning the air inlet of a fan by an air inlet spinning press for a fan. 1) After welding a cover plate or flange to the air inlet of the fan, the cover plate or flange with the air inlet of the fan is clamped in the groove of the driving roller; 2) Adjust the height of the arc pressing mechanism through the lifting handwheel so that the edge of the air inlet of the fan to be spun is aligned between the top wheel and the pressing wheel in the manual arc pressing mechanism; 3) Then drive the T-shaped screw to rotate by rotating the translation handwheel. The T-shaped screw drives the moving push-pull plate, and the moving push-pull plate drives the driving roller to move along the transmission shaft so that the edge of the air inlet of the fan to be spun extends between the top wheel and the pressing wheel in the arc pressing mechanism. Then drive the T-shaped screw to rotate by rotating the arc pressing handwheel. The rotation of the T-shaped screw drives the fixed screw seat of the pressing wheel shaft to lift and lower, and the fixed bearing seat of the pressing wheel shaft drives the pressing wheel to press the edge of the air inlet of the fan to be spun; 4) At this time, drive the T-shaped screw to rotate by rotating the top support lifting handwheel on the top support lifting column frame. The T-shaped screw drives the top support lifting assembly to rise or fall, so that the top support wheel in the top support translation assembly abuts against the cover plate of the air inlet of the fan to be abutted; 5) At this time, by rotating the top support translation handwheel, the top support translation handwheel drives the T-shaped screw to rotate. The T-shaped screw drives the top support translation assembly to move horizontally to dynamically clamp the cover plate or flange of the air inlet of the fan to be processed; 6) At this time, start the motor. The power output shaft of the motor drives the reducer to rotate through a transmission mechanism composed of a driving pulley, a belt and a driven pulley. The driving gear installed on the power output shaft of the reducer drives the gear on the transmission shaft to rotate synchronously. The transmission shaft drives the driving roller located thereon to rotate. The driving roller drives the cover plate or flange of the air inlet of the fan clamped on its groove to rotate, and further drives the air inlet of the fan welded on the cover plate or flange to rotate in the dynamic forming die orifice composed of the top wheel and the pressing wheel and gradually be spun into the required shape.

[0007] Compared with the background technology, the present invention has the following advantages: first, it can adapt to the processing and forming of the edges of air inlets of fan cover plates with different sizes; second, it has high processing efficiency; third, it has low processing costs. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of an air inlet spinning press for a fan.

[0009] Figure 2 It is Figure 1 A schematic diagram of one side. Detailed Embodiments

[0010] Embodiment 1: Refer to the attached Figure 1 and 2。A rotary press for the air inlet of a fan. One end of the frame base 7 is provided with a manual arc pressing and lifting mechanism 1. The manual arc pressing mechanism 2 is matched with the guide rail 20 in the manual arc pressing and lifting mechanism 1 through a sliding sleeve, and the manual arc pressing mechanism 2 rises or falls driven by a ball screw 21. The front part of the manual arc pressing mechanism 2 is provided with a top wheel 26 and a pressing wheel 25, and the pressing wheel 25 is fixed to the screw seat 24 through a pressing wheel shaft and is driven by the ball screw and the arc pressing hand wheel 23 to lift the pressing wheel; A pair of transmission rollers 16 are respectively sleeved on the transmission shaft 14, and the pair of transmission rollers sleeved on the transmission shaft can not only move along the transmission shaft, but also rotate driven by the transmission shaft 16. Both ends of the transmission shaft are respectively located on the transmission roller support seat 17 through sliding bearings 27. Two gears 8 are respectively connected to their respective transmission shafts 14, and both gears 8 are meshed with the gears on the power output shaft of the reducer 10. The moving push-pull plate 15 is clamped with the groove in the transmission roller, and the moving push-pull plate 15 is threadedly connected with the T-shaped screw 18. The driving end of the T-shaped screw 18 is equipped with a translation hand wheel 28; The top support lifting column frame 4 is fixed on the frame base 7. The back of the top support lifting assembly 5 is fixedly connected with one side of the sliding sleeve 3. The other side of the sliding sleeve 3 is sleeved on the guide rail in the top support lifting column frame 4. The top support translation assembly 6 is matched with the transverse guide rail in the top support translation assembly 5 through a sliding sleeve, and the top support translation assembly 6 is driven by a hand wheel to drive the ball screw, and the ball screw drives the top support translation assembly 6 to translate and move.

[0011] The front end of the top support translation assembly 6 is equipped with a top support wheel 29, aiming to reduce the frictional resistance and avoid damage to the pressed part.

[0012] The surface of the transmission roller 16 has multiple annular grooves. The annular grooves are trapezoidal grooves, that is, narrow at the bottom and wide at the top, aiming to adapt to the clamping and locking of cover plates with different thicknesses.

[0013] In the manual arc pressing and lifting mechanism 1, the frame 19 stands upright on the frame base 7. Two guide rails 20 are vertically installed in the frame 19, and a ball screw 21 is installed between the two guide rails 20.

[0014] The sliding sleeve 3 is a notched sliding sleeve, that is, the sliding sleeve 3 has a notch along its longitudinal surface. The purpose is to cooperate with the guide rail with a surface-fixed back of the guide rail, so that it can not only hold the guide rail, but also ensure that the guide rail does not deform.

[0015] The T-shaped screw 18 is threaded with the screw sleeve on the moving push-pull plate 15. The hand wheel drives the T-shaped screw 18 to rotate, that is, drives the moving push-pull plate to move forward or backward. The moving push-pull plate drives the transmission roller 16 to move forward or backward synchronously along the transmission shaft.

[0016] The top surface of the top wheel 26 is convex arc-shaped, and the wheel surface of the pressing wheel 25 is concave arc-shaped to meet the requirements of the arc-shaped opening at the fan inlet.

[0017] Embodiment 2: On the basis of Embodiment 1, a method for spinning the air inlet of a fan inlet spinning machine. 1) After welding a cover plate to the fan inlet, the fan inlet with the cover plate is clamped in the groove of the driving roller 16; 2) The height of the manual arc pressing mechanism 2 is adjusted by the lifting handwheel 22 so that the edge of the fan inlet to be spun is aligned between the top wheel 26 and the pressing wheel 25 in the manual arc pressing mechanism 2; 3) Then, the T-shaped screw rod 18 is rotated by driving the rotary translation handwheel 28. The T-shaped screw rod 18 drives the moving push-pull plate 15, and the moving push-pull plate 15 drives the driving roller 16 to move along the transmission shaft 14 so that the edge of the fan inlet to be spun extends between the top wheel 26 and the pressing wheel 25 in the manual arc pressing mechanism 2. Then, the ball screw is rotated by driving the arc pressing handwheel 23. The rotation of the ball screw drives the lifting of the pressing wheel shaft fixed bearing block 24, and the pressing wheel shaft fixed bearing block 24 drives the pressing wheel 25 to press the edge of the fan inlet to be spun; 4) At this time, the ball screw is rotated by driving the top support lifting handwheel on the top support lifting column frame 4. The ball screw drives the top support lifting assembly 4 to rise or fall, so that the top support wheel 29 in the top support translation assembly of the top support lifting assembly faces the fan inlet cover plate to be supported; 5) At this time, by rotating the top support translation handwheel, the top support translation handwheel drives the ball screw to rotate, and the ball screw drives the top support translation assembly 6 to move horizontally to dynamically clamp the fan inlet cover plate to be processed; 6) At this time, the motor 9 is started. The power output shaft of the motor drives the reducer 10 to rotate through a transmission mechanism composed of a driving pulley 11, a belt 12, and a driven pulley 13. The driving gear installed on the power output shaft of the reducer 10 drives the gear on the transmission shaft 14 to rotate synchronously. The transmission shaft 14 drives the driving roller 16 located thereon to rotate. The driving roller 16 drives the fan inlet cover plate stuck in its groove to rotate, and further drives the air inlet welded to the fan inlet cover plate to rotate in the dynamic forming die orifice formed by the top wheel 26 and the pressing wheel 25 and is gradually rolled into the required shape. The air inlet on the fan inlet cover plate rotates in the dynamic forming die orifice formed by the top wheel 26 and the pressing wheel 25. The downward pressure of the pressing wheel 25 is gradually adjusted by the arc pressing handwheel 23 so that the edge of the air inlet is rolled into the required arc shape. The movement of all longitudinal and transverse mechanisms is executed by the T-shaped screw pair. By using the self-locking performance of the T-shaped screw pair, the workpiece can be accurately positioned in the required longitudinal and transverse positions, and the coaxiality between the machined surface and the whole workpiece can be ensured. The same machine can complete the air inlet spinning process of all fans in a conventional fan manufacturing enterprise.

[0018] The power output shaft of the motor drives the reducer 10 to rotate through a transmission mechanism composed of a driving pulley 11, a belt 12, and a driven pulley 13. A reduction motor can be used instead, or a gear transmission mechanism can be used, but it is not limited thereto.

[0019] It should be understood that: Although the above embodiments have made a detailed written description of the design concept of the present invention, these written descriptions are only simple written descriptions of the design concept of the present invention, rather than limitations on the design concept of the present invention. Any combination, addition or modification that does not exceed the design concept of the present invention falls within the protection scope of the present invention.

Claims

1. A rotary press for the air inlet of a fan, characterized in that: A manual arc pressing lifting mechanism (1) is provided at one end of the frame base (7), the manual arc pressing mechanism (2) cooperates with the longitudinal guide rail (20) in the manual arc pressing lifting mechanism (1) through a sliding sleeve, and the manual arc pressing mechanism (2) rises or falls under the drive of a first T-shaped screw (21), a lifting hand wheel is provided at one end of the first T-shaped screw (21), a top wheel (26) and a pressure wheel (25) are provided at the front of the manual arc pressing mechanism (2), and the pressure wheel (25) is driven to rise or fall by a second T-shaped screw and an arc pressing hand wheel (23) through a pressure wheel shaft fixed bearing seat (24); a pair of transmission rollers (16) are respectively sleeved on two transmission shafts, and the wheel surfaces of the pair of transmission rollers (16) are both provided with a plurality of annular grooves, the processed fan air inlet is welded on the cover plate, and the cover plate is clamped in the annular groove of the transmission roller, and the two ends of the transmission shaft are respectively located on the transmission roller support seat (17) through sliding bearings (27), and the two gears (8) are respectively connected to their respective The transmission shaft (14) is connected and the two gears (8) are meshed with the driving gear on the power output shaft of the reducer (10). The movable push-pull plate (15) is engaged with the annular groove in the transmission roller and the movable push-pull plate (15) is threadedly connected with the T-screw (18). The driving end of the T-screw (18) is equipped with a translation handwheel (28). The movable push-pull plate can drive the transmission roller to move along the transmission shaft (14) under the action of the T-screw and the translation handwheel. The transmission roller The top-relief column frame (4) is fixed on the frame base (7), the back of the top-relief assembly (5) is fixedly connected to one side of the sliding sleeve (3), and the other side of the sliding sleeve (3) is sleeved on the longitudinal guide rail in the top-relief column frame (4). The front end of the top-relief translation assembly (6) is provided with a top-relief wheel (29). The top-relief translation assembly (6) cooperates with the transverse guide rail in the top-relief assembly (5) through the sliding sleeve and drives the T-shaped screw through the top-relief translation hand wheel. The T-shaped screw drives the top-relief translation assembly (6) to move transversely. The top-relief translation assembly (6) moves transversely along the top-relief assembly, so that the air inlet of the fan being processed can be supported, thereby offsetting the reverse force generated when the air inlet of the fan is pressed and formed.

2. The fan inlet spinning machine according to claim 1 is characterized in that: the frame (19) in the manual arc pressing lifting mechanism (1) is erected on the frame base (7), two longitudinal guide rails (20) are vertically installed in the frame (19), and a first T-shaped screw (21) is installed between the two longitudinal guide rails (20).

3. The spinning machine for the air inlet of a fan according to claim 1, characterized in that: The sliding sleeve (3) is a notched sliding sleeve.

4. The air inlet spinning machine for a fan according to claim 1, characterized in that: The wheel surface of the top wheel (26) is convexly arc-shaped, and the wheel surface of the pressure wheel (25) is concavely arc-shaped.

5. A method for spinning a blower air inlet by a spinning press for a blower air inlet as described in claim 1, characterized in that: 1) After welding a cover plate or flange to the air inlet of the fan, the cover plate or flange with the air inlet of the fan is clamped in the annular groove of the driving roller (16); 2) Adjust the height of the manual arc pressing mechanism (2) through the lifting handwheel (22) so that the edge of the air inlet of the fan to be spun is aligned between the top wheel (26) and the pressing wheel (25) in the manual arc pressing mechanism (2); 3) Then drive the T-shaped screw rod (18) to rotate by rotating the translation handwheel (28). The T-shaped screw rod (18) drives the moving push-pull plate (15), and the moving push-pull plate (15) drives the driving roller (16) to move along the transmission shaft (14) so that the edge of the air inlet of the fan to be spun extends into the space between the top wheel (26) and the pressing wheel (25) in the manual arc pressing mechanism (2). Then drive the second T-shaped screw rod to rotate by rotating the arc pressing handwheel (23). The rotation of the second T-shaped screw rod drives the lifting of the fixed bearing seat (24) of the pressing wheel shaft, and the fixed bearing seat (24) of the pressing wheel shaft drives the pressing wheel (25) to press tightly against the edge of the air inlet of the fan to be spun; 4) At this time, drive the T-shaped screw rod to rotate by rotating the top support lifting handwheel on the top support lifting column frame (4). The T-shaped screw rod drives the lifting of the top support lifting assembly (54) so that the top support wheel (29) at the front end of the top support translation assembly in the top support lifting assembly faces the cover plate or flange of the air inlet of the fan to be supported; 5) At this time, rotate the top support translation handwheel. The top support translation handwheel drives the T-shaped screw rod to rotate, and the T-shaped screw rod drives the top support translation assembly (6) to move horizontally to dynamically tighten the cover plate or flange of the air inlet of the fan to be processed; 6) At this time, start the motor (9). The power output shaft of the motor drives the reducer (10) to rotate through the transmission mechanism composed of the driving pulley (11), the belt (12) and the driven pulley (13). The driving gear installed on the power output shaft of the reducer (10) drives the gear on the transmission shaft (14) to rotate synchronously. The transmission shaft (14) drives the driving roller (16) located thereon to rotate. The driving roller (16) drives the cover plate or flange stuck in its groove to rotate, and further drives the air inlet of the fan welded on the cover plate or flange to rotate in the dynamic forming die orifice composed of the top wheel (26) and the pressing wheel (25) and gradually be spun into the required shape.

6. The method for spinning the air inlet of a fan by the spinning machine for the air inlet of a fan according to claim 5, characterized in that: The air inlet of the fan on the cover plate or flange rotates in the dynamic forming die orifice composed of the top wheel (26) and the pressing wheel (25). Gradually adjust the downward pressure of the pressing wheel (25) through the arc pressing handwheel (23) so that the edge of the air inlet of the fan is spun into the required geometric shape.

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