A kind of centrifugal fan impeller back tooth machine

Abstract

The present application relates to fan impeller back gear device field, concretely is a kind of centrifugal fan impeller back gear machine, including base, still include: setting on the base feeding mechanism, and feeding mechanism is used to transport the impeller to be back gear processing;Setting on the base back gear mechanism, and back gear mechanism is provided with feed assembly, back gear mechanism includes upper rolling wheel and lower rolling wheel, and back gear mechanism drives upper rolling wheel and lower rolling wheel rotation while driving feed mechanism reciprocating type upper rolling wheel and lower rolling wheel are driven to approach each other or away from each other, when upper rolling wheel and lower rolling wheel approach each other in the process of the protrusion on the upper and lower end of impeller is back gear rolling, and when upper rolling wheel and lower rolling wheel are away from each other in the process back gear mechanism drives feeding mechanism to transport impeller.This kind of centrifugal fan impeller back gear machine, realize greatly improve the automation degree of impeller upper protrusion tooth back gear processing, greatly improve work efficiency, reduce worker's labor intensity, improve impeller back gear processing quality.

Description

Technical Field

[0001] This invention relates to the field of fan impeller tooth reversing equipment, specifically a centrifugal fan impeller tooth reversing machine. Background Technology

[0002] After the centrifugal fan impeller is assembled, both ends of its blades have protruding teeth. These teeth need to be manually flattened to make the blades more securely fixed. Therefore, flattening the teeth is labor-intensive for workers and can cause them to cut their fingers. In addition, uneven force applied to the teeth of each blade during the tapping will result in low flatness of the teeth, reducing the flatness of the impeller and causing mismatch during assembly. In view of this, we propose a centrifugal fan impeller tooth rewinding machine. Summary of the Invention

[0003] The purpose of this invention is to provide a centrifugal fan impeller rewinding machine to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a centrifugal fan impeller rewinding machine, including a base, and further comprising:

[0004] A feeding mechanism mounted on the base is used to transport the impeller to be re-toothed;

[0005] A tooth-reversing mechanism is installed on the base, and a feeding component is provided on the tooth-reversing mechanism. The tooth-reversing mechanism includes an upper rolling roller and a lower rolling roller. The tooth-reversing mechanism drives the upper rolling roller and the lower rolling roller to rotate, and at the same time drives the feeding mechanism to reciprocate to move the upper rolling roller and the lower rolling roller closer and further away from each other. When the upper rolling roller and the lower rolling roller move closer to each other, they perform tooth-reversing rolling on the protrusions at the upper and lower ends of the impeller. When the upper rolling roller and the lower rolling roller move further away from each other, the tooth-reversing mechanism drives the feeding mechanism to convey the impeller.

[0006] Preferably, the feeding mechanism includes a geared disc rotatably connected to the base, with a rotating shaft coaxially fixedly connected to the center of the upper surface of the geared disc, and a circular disc coaxially fixedly connected to the upper end of the rotating shaft. Multiple shafts are rotatably connected through the circular disc at positions away from the center, with a rotating frame fixed to the upper end of the shafts and a gear coaxially fixedly connected to the lower end of the shafts.

[0007] Preferably, a cylinder is fixed on the base, and a toothed plate is fixed to the piston rod end of the cylinder, which can mesh with the teeth on the toothed disc.

[0008] Preferably, the gear reversing mechanism includes a vertical plate fixed on the base, and a pulley 1 is rotatably connected to the vertical plate on a fixed axis. The pulley 1 is connected to the output shaft of the motor and the motor is fixed on the base. A bracket 1 is fixed at the upper end of the vertical plate, and a pulley 2 is rotatably connected to the upper end of the bracket 1 on a fixed axis. The pulley 1 and the pulley 2 are connected by belt drive.

[0009] Preferably, a third guide wheel and a third wheel disc are rotatably connected to a fixed axis on the upright plate, and the belt passes around the third guide wheel and the third wheel disc in an "S" shape, and the third wheel disc is coaxially and fixedly connected to a second gear, which can mesh with a first gear.

[0010] Preferably, the feeding assembly includes a groove formed on the vertical plate, and a partition is fixed in the middle of the inner side of the groove. An upper slide seat and a lower slide seat are slidably connected on the upper and lower sides of the partition in the groove, respectively. A first guide wheel and a first wheel are rotatably connected on the upper slide seat, and a belt passes around the first guide wheel and the first wheel in an "S" shape. The first wheel is coaxially fixedly connected to the upper rolling wheel. A second guide wheel and a second wheel are rotatably connected on the lower slide seat, and a belt passes around the second guide wheel and the second wheel in an "S" shape. The second wheel is coaxially fixedly connected to the lower rolling wheel.

[0011] Preferably, a fixed-axis rotating connecting screw is provided in the slide groove. The screw passes through the partition and rotates on the partition. The screw has opposite threads on the upper and lower outer peripheral walls of the partition. The screw passes through the upper slide and the lower slide and is threadedly connected to the upper slide and the lower slide respectively through corresponding threads.

[0012] Preferably, the upright plate has a groove, and the lower end of the screw is located in the groove. The lower end of the screw is coaxially fixedly connected to a ratchet, and the ratchet is connected to the rotating shaft through a pulley assembly.

[0013] Preferably, a gear three is coaxially fixedly connected to the upper end of the screw, and the gear three meshes with the rack. The rack is slidably connected to the bracket two, the bracket two is fixed to the vertical plate, and a slide is fixed to one end of the rack. A pin is slidably connected inside the slide, and the pin is rotatably connected to the pulley two at a position away from the center.

[0014] Preferably, a contact rod is fixed on the rack, and the contact rod can respectively engage with touch switch one and touch switch two, and touch switch one and touch switch two are both fixed on the upright plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In this invention, a tooth-reversing mechanism drives the upper and lower rolling rollers to rotate, while simultaneously driving the feeding mechanism to reciprocate, causing the upper and lower rolling rollers to move closer or further apart. As the upper and lower rolling rollers approach each other, they perform tooth-reversing rolling on the protruding teeth at the upper and lower ends of the impeller, thus achieving tooth-reversing processing of the impeller. This significantly improves work efficiency, maintains the smooth rolling of the protruding teeth on each blade, improves the quality of tooth-reversing processing, and ensures high safety. Furthermore, as the upper and lower rolling rollers move away from each other, the tooth-reversing mechanism drives the feeding mechanism to transport the impeller. This cycle repeats, greatly improving the automation level of tooth-reversing processing on the impeller. Workers or robots only need to place the impeller to be reversed on an empty rotating frame and remove the reversed impeller from the frame, significantly improving work efficiency, reducing worker labor intensity, and enhancing the quality of impeller tooth-reversing processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the AA section structure;

[0019] Figure 3 This is a top view of the impeller structure in this invention;

[0020] Figure 4 This is a top view of the rotating frame structure in this invention.

[0021] In the diagram: 1. Base; 2. Upright plate; 3. Motor; 4. Gear plate; 5. Rotating shaft; 6. Pulley assembly; 7. Cylinder; 8. Gear plate; 9. Disc; 10. Shaft; 11. Gear 1; 12. Rotating frame; 13. Upper rolling roller; 14. Lower rolling roller; 15. Gear 2; 16. Pulley 1; 17. Belt; 18. Third guide wheel; 19. Second guide wheel; 20. First guide wheel; 21. Support 1. Frame 1; 22. Pulley 2; 23. Pin; 24. Slide; 25. Rack; 26. Gear 3; 27. Support 2; 28. Touch switch 1; 29. ​​Contact rod; 30. Touch switch 2; 31. Upper slide; 32. First wheel; 33. Slide groove; 34. Partition; 35. Screw; 36. Second wheel; 37. Lower slide; 38. Third wheel; 39. Ratchet; 40. Groove. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 4 The present invention provides a technical solution: a centrifugal fan impeller tooth reversing machine, including a base 1, and further comprising:

[0024] A feeding mechanism is installed on the base 1, which is used to transport the impeller to be re-toothed;

[0025] A tooth-reversing mechanism is provided on the base 1, and a feeding component is provided on the tooth-reversing mechanism. The tooth-reversing mechanism includes an upper rolling roller 13 and a lower rolling roller 14. The tooth-reversing mechanism drives the upper rolling roller 13 and the lower rolling roller 14 to rotate while driving the feeding mechanism to reciprocate and drive the upper rolling roller 13 and the lower rolling roller 14 to move closer or further away from each other. When the upper rolling roller 13 and the lower rolling roller 14 move closer to each other, they perform tooth-reversing rolling on the protrusions at the upper and lower ends of the impeller. When the upper rolling roller 13 and the lower rolling roller 14 move further away from each other, the tooth-reversing mechanism drives the feeding mechanism to convey the impeller.

[0026] In this embodiment, the feeding mechanism includes a geared disc 4 rotatably connected to a base 1, and a rotating shaft 5 is coaxially fixedly connected to the center of the upper surface of the geared disc 4. A disc 9 is coaxially fixedly connected to the upper end of the rotating shaft 5. Multiple shafts 10 are connected to the disc 9 at positions away from the center and rotatably connected to the base 1. A rotating frame 12 is fixed to the upper end of the shaft 10, and a gear 11 is coaxially fixedly connected to the lower end of the shaft 10. A cylinder 7 is fixed to the base 1, and a toothed plate 8 is fixed to the piston rod end of the cylinder 7. The toothed plate 8 can mesh with the teeth on the geared disc 4. By extending its piston rod, the cylinder 7 can lock the geared disc 4 by meshing with the toothed plate 8, thereby ensuring that the disc 9 cannot rotate and ensuring the stability and reliability of the reverse gear processing.

[0027] In this embodiment, the gear reversing mechanism includes a vertical plate 2 fixed on the base 1, and a pulley 16 is rotatably connected to the vertical plate 2 on a fixed axis. The pulley 16 is connected to the output shaft of the motor 3 for transmission. The motor 3 is fixed on the base 1. A bracket 21 is fixed at the upper end of the vertical plate 2, and a pulley 22 is rotatably connected to the upper end of the bracket 21 on a fixed axis. The pulley 16 and the pulley 22 are connected for transmission through a belt 17.

[0028] In this embodiment, a third guide wheel 18 and a third wheel disk 38 are rotatably connected on the upright plate 2, and the belt 17 passes around the third guide wheel 18 and the third wheel disk 38 in an "S" shape. The third wheel disk 38 is coaxially fixedly connected to a second gear 15, which can mesh with a first gear 11.

[0029] In this embodiment, the feeding assembly includes a groove 33 formed on the vertical plate 2, and a partition 34 is fixed in the middle of the inner side of the groove 33. The upper slide seat 31 and the lower slide seat 37 are slidably connected to the upper and lower sides of the partition 34 in the groove 33, respectively. The upper slide seat 31 is rotatably connected to a first guide wheel 20 and a first wheel 32, and the belt 17 passes around the first guide wheel 20 and the first wheel 32 in an "S" shape. The first wheel 32 is coaxially fixedly connected to the upper rolling roller 13. The lower slide seat 37 is rotatably connected to a second guide wheel 19 and a second wheel 36, and the belt 17 passes around the second guide wheel 19 and the second wheel 36 in an "S" shape. The second wheel 36 is coaxially fixedly connected to the lower rolling roller 14.

[0030] In this embodiment, a screw 35 is rotatably connected to a fixed axis within the slide groove 33. The screw 35 passes through the partition plate 34 and rotates on the partition plate 34. The threads on the upper and lower outer peripheral walls of the screw 35 are arranged in opposite directions. The screw 35 passes through the upper slide block 31 and the lower slide block 37, and is threadedly connected to the upper slide block 31 and the lower slide block 37 respectively through corresponding threads. A groove 40 is provided on the vertical plate 2, and the lower end of the screw 35 is located in the groove 40. A ratchet 39 is coaxially fixedly connected, and the ratchet 39 is connected to the rotating shaft 5 through the pulley assembly 6. A gear 26 is coaxially fixedly connected to the upper end of the screw 35, and the gear 26 meshes with the rack 25. The rack 25 is slidably connected to the bracket 27, which is fixed to the upright plate 2. A slide 24 is fixed to one end of the rack 25, and a pin 23 is slidably connected inside the slide 24. The pin 23 is rotatably connected to the pulley 22 at a position away from the center.

[0031] In this embodiment, a contact rod 29 is fixed on the rack 25. The contact rod 29 can engage with the first touch switch 28 and the second touch switch 30 respectively. Both the first touch switch 28 and the second touch switch 30 are fixed on the upright plate 2.

[0032] Working principle and advantages of this invention: The working process of this centrifugal fan impeller tooth reversing machine is as follows:

[0033] like Figure 1 and Figure 2As shown, the impeller to be re-toothed is placed on the rotating frame 12. The controller controls the motor 3 to work, so that the motor 3 drives the pulley 16 to rotate, which in turn drives the pulley 16 to run through the belt 17, which in turn drives the pulley 22 to rotate. While the belt 17 is running, it simultaneously drives the first guide wheel 20, the first wheel disc 32, the second guide wheel 19, the second wheel disc 36, the third guide wheel 18, and the third wheel disc 38 to rotate. This causes the first wheel disc 32, the second wheel disc 36, and the third wheel disc 38 to drive the upper rolling wheel 13, the lower rolling wheel 14, and the gear 15 to rotate, respectively. While the gear 15 is rotating, it drives the corresponding shaft 10 to rotate through the gear 11 meshing with it, so that the shaft 10 drives the impeller to rotate through the corresponding rotating frame 12.

[0034] As pulley 22 rotates, it drives slide 24 and rack 25 to reciprocate horizontally on bracket 27 via pin 23. Figure 2 When the impeller moves to the right, the controller controls the cylinder 7 to extend its piston rod, causing the toothed plate 8 to mesh with the toothed disc 4 and lock the disc 4, thus ensuring that the disc 9 cannot rotate and ensuring the stability and reliability of the reverse gear machining. At this time, the rack 25 drives the screw 35 to rotate through the gear 36, causing the screw 35 to drive the upper slide 31 and the lower slide 37 to move closer to each other in the slide groove 33 through the two threads on it. This causes the upper slide 31 and the lower slide 37 to drive the upper rolling roller 13 and the lower rolling roller 14 to move closer to each other, and the upper rolling roller 13 and the lower rolling roller 14 to perform rolling flattening treatment on the protruding teeth at the upper and lower ends of the impeller, thereby realizing the reverse gear machining of the impeller, greatly improving the working efficiency, and keeping the protruding teeth on each blade rolled flat, improving the reverse gear machining quality, and ensuring high safety. During the rotation of the screw 35, it cannot drive the pulley assembly 6 through the ratchet 39 to avoid driving the rotating shaft 5, ensuring the stability and reliability of the reverse gear machining of the impeller.

[0035] As described above, as the rack 25 moves to the right, it simultaneously drives the contact rod 29 to move to the right. When the rack 25 reaches its rightmost position and is about to move to the left, the protruding teeth on the impeller are completely rolled flat, and the contact rod 29 is in contact with the second touch switch 30. The second touch switch 30 receives the touch signal from the contact rod 29 and sends the signal to the controller. The controller controls the cylinder 7 to retract its piston rod, causing the toothed plate 8 to move away from the toothed disc 4 and unlock the toothed disc 4. Simultaneously, as the rack 25 moves to the left, it drives the screw 35 to rotate in the opposite direction through the gear 36. This causes the screw 35 to drive the upper slide 31 and the lower slide 37 to move away from each other within the slide groove 33 through its two threaded sections. This causes the upper slide 31 and the lower slide 37 to drive the upper rolling wheel 13 and the lower rolling wheel 14 to move away from each other and reset. Simultaneously, the screw 35 rotates in the opposite direction, driving the pulley assembly 6 through the ratchet 39. This causes the ratchet 39 to drive the rotating shaft 5 through the pulley assembly 6, thereby causing the rotating shaft 5 to synchronously drive the toothed disc 4 and the... The disk 9 rotates, thereby moving the impeller that has already undergone tooth reversal processing out of the space between the upper and lower rollers 13 and 14, and moving the next impeller to be reversed into the space between the upper and lower rollers 13 and 14. When the rack 25 moves to the leftmost end, it is about to move to the right, and gear 11 meshes with gear 25. At the same time, the contact rod 29 engages with the touch switch 28, and the touch switch 28 transmits the touch signal of the contact rod 29 to the control. The controller controls the cylinder 7 to extend its piston rod, causing the toothed plate 8 to mesh with the toothed disc 4 and lock the disc 4, thereby ensuring that the disc 9 cannot rotate. This cycle is repeated, which greatly improves the automation of the tooth reversing process on the impeller. Workers or robots only need to place the impeller to be reversed on the empty rotating frame 12 and remove the reversed impeller from the rotating frame 12, which greatly improves work efficiency, reduces the labor intensity of workers, and improves the quality of impeller tooth reversing.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A centrifugal fan impeller gear reversing machine, comprising a base (1), characterized in that: Also includes: A feeding mechanism is provided on the base (1) for conveying the impeller to be re-toothed; A tooth-reversing mechanism is provided on the base (1), and a feeding component is provided on the tooth-reversing mechanism. The tooth-reversing mechanism includes an upper rolling roller (13) and a lower rolling roller (14). The tooth-reversing mechanism drives the upper rolling roller (13) and the lower rolling roller (14) to rotate while driving the feeding component to reciprocate and drive the upper rolling roller (13) and the lower rolling roller (14) to move closer or further away from each other. When the upper rolling roller (13) and the lower rolling roller (14) move closer to each other, the tooth-reversing mechanism rolls the protrusions at the upper and lower ends of the impeller. When the upper rolling roller (13) and the lower rolling roller (14) move further away from each other, the tooth-reversing mechanism drives the feeding mechanism to convey the impeller. The feeding mechanism includes a gear disk (4) rotatably connected to a base (1) with a fixed axis, and a rotating shaft (5) is coaxially fixedly connected to the center of the upper surface of the gear disk (4), and a disc (9) is coaxially fixedly connected to the upper end of the rotating shaft (5). Multiple shafts (10) are connected to the disc (9) with a fixed axis and a position away from the center. A rotating frame (12) is fixed to the upper end of the shaft (10), and a gear (11) is coaxially fixed to the lower end of the shaft (10). A cylinder (7) is fixed to the base (1), and a toothed plate (8) is fixed to the piston rod end of the cylinder (7). The toothed plate (8) can mesh with the teeth on the gear disk (4). The gear reversing mechanism includes a vertical plate (2) fixed on the base (1), and a pulley (16) is rotatably connected to the vertical plate (2) on a fixed axis. The pulley (16) is connected to the output shaft of the motor (3) and the motor (3) is fixed on the base (1). A bracket (21) is fixed at the upper end of the vertical plate (2), and a pulley (22) is rotatably connected to the upper end of the bracket (21) on a fixed axis. The pulley (16) and the pulley (22) are connected by a belt (17). A third guide wheel (18) and a third wheel disc (38) are rotatably connected to the vertical plate (2), and the belt (17) passes around the third guide wheel (18) and the third wheel disc (38) in an "S" shape. The third wheel disc (38) is coaxially fixedly connected to a gear (15), which can mesh with the gear (11). The feeding assembly includes a groove (33) formed on the vertical plate (2), and a partition (34) is fixed in the middle of the inner side of the groove (33). An upper slide (31) and a lower slide (37) are slidably connected to the upper and lower sides of the partition (34) in the groove (33). A first guide wheel (20) and a first wheel disc (32) are rotatably connected to the upper slide (31) on a fixed axis. A belt (17) passes around the first guide wheel (20) and the first wheel disc (32) in an "S" shape. The first wheel disc (32) The upper roller (13) is coaxially and fixedly connected to the lower roller (14). The lower slide seat (37) is rotatably connected to the second guide wheel (19) and the second wheel disc (36) on a fixed axis. The belt (17) passes around the second guide wheel (19) and the second wheel disc (36) in an "S" shape. The second wheel disc (36) is coaxially and fixedly connected to the lower roller (14). The screw (35) is rotatably connected to the lower slide groove (33) on a fixed axis. The screw (35) passes through the partition plate (34) and rotates on the partition plate (34) on a fixed axis. 35) The threads on the upper and lower outer peripheral walls of the partition plate (34) are arranged in opposite directions, and the screw (35) passes through the upper slide (31) and the lower slide (37), and is threaded to the upper slide (31) and the lower slide (37) respectively through the corresponding threads. The vertical plate (2) is provided with a groove (40), and the lower end of the screw (35) is located in the groove (40). The lower end of the screw (35) is coaxially fixedly connected to the ratchet (39), and the ratchet (39) is connected to the shaft through the pulley assembly (6). (5) Transmission connection: The upper end of the screw (35) is coaxially fixedly connected to the gear three (26), and the gear three (26) meshes with the rack (25). The rack (25) is slidably connected to the bracket two (27). The bracket two (27) is fixed on the upright plate (2). One end of the rack (25) is fixed to the slide (24), and the slide (24) is slidably connected to the pin (23). The pin (23) is rotatably connected to the pulley two (22) at a position away from the center.

2. The centrifugal fan impeller gear reversing machine according to claim 1, characterized in that: A contact rod (29) is fixed on the rack (25). The contact rod (29) can engage with the first touch switch (28) and the second touch switch (30) respectively. Both the first touch switch (28) and the second touch switch (30) are fixed on the upright plate (2).

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