Stator core polishing device for motor production

Abstract

The utility model discloses a stator core polishing device for motor production, relates to the technical field of polishing equipment, and aims to solve the problems that in the background technology, only a small area of a stator core can be polished, then the stator core is moved to polish the next area, the polishing efficiency is low, dust generated during polishing is not collected and treated, and the polishing efficiency is low. According to the scheme, the device comprises an operation table, two sliding rails are connected to the outer wall of the top of the operation table through bolts, and a mounting mechanism is arranged on the outer wall of the top of the operation table; the mounting mechanism comprises a mounting block fixedly arranged on the outer wall of the top of the operation table and a supporting plate fixedly arranged on the outer wall of the top of the operation table. According to the stator core polishing device, the polishing roller can be rapidly disassembled and assembled, meanwhile, the stator core can be comprehensively polished, the polishing efficiency is improved, dust generated during polishing can be collected, a large amount of dust is prevented from drifting away in the external environment, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing equipment technical field especially relates to a stator core polishing device for motor production. BACKGROUND

[0002] Polishing is a kind of surface modification technology, generally refers to the rough object (containing higher hardness particle sandpaper etc.) to change the physical properties of material surface through friction, the main purpose is to obtain specific surface roughness.

[0003] Motor (commonly known as "motor") refers to the electromagnetic device according to electromagnetic induction law realizes electric energy conversion or transmission, wherein the stator core is the important component of stator and is the main component of motor magnetic circuit, it is composed of sector piece, ventilation slot piece, positioning rib, upper and lower tooth pressure plate, tension bolt and support plate etc., the stator core is punched into sector piece by silicon steel sheet and stacked on the positioning rib, the positioning rib is welded on the ring plate of the base through the support plate, and the iron core is pressed into a whole by the tension bolt through the upper and lower tooth pressure plate, the iron core is also the part of winding, when the generator operates, the iron core will be subjected to the combined action of mechanical force, thermal stress and electromagnetic force.

[0004] In the motor production process, the stator core of motor needs to be polished, but the stator core polishing equipment in the prior art has the following problems when polishing the stator core:

[0005] 1, when polishing the stator core, only a small area of the stator core can be polished, then the stator core is moved to polish the next area, and the polishing efficiency is low;

[0006] 2, when polishing the stator core, the dust generated during polishing is not collected and treated, causing dust accumulation, low practicability. INVENTION CONTENTS

[0007] The utility model provides a kind of stator core polishing device for motor production, solve the stator core polishing equipment in the prior art when polishing the stator core only a small area of the stator core can be polished, then the stator core is moved to polish the next area, and the polishing efficiency is low, the dust generated during polishing is not collected and treated, causing dust accumulation, low practicability problem.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] The utility model provides a kind of stator core grinding device for motor production, including operation platform, the outer wall on the top of operation platform is connected with two sliding rails by bolt, the outer wall on the top of operation platform is equipped with mounting mechanism, the mounting mechanism includes the mounting block being fixed on the outer wall on the top of operation platform and the support plate being fixed on the outer wall on the top of operation platform, the outer wall on the top of operation platform is equipped with adjusting mechanism, the adjusting mechanism includes the mounting plate being connected on the outer wall on one side of mounting block by bolt, two adjusting motors being respectively connected on the outer wall on one side of mounting plate by bolt, two screw rods being respectively connected on the outer wall on one end of the output shaft of two adjusting motors by coupling and two threaded blocks being respectively screwed on the outer wall of two screw rods, the side of support plate is equipped with lifting mechanism, the lifting mechanism includes the sliding plate being fixed on the outer wall on the bottom of two threaded blocks, two sliding blocks being respectively connected on the outer wall on the bottom of sliding plate by bolt, two lifting cylinders being respectively connected on the outer wall on the bottom of sliding plate by bolt and the mounting seat being connected on the outer wall on the top of the piston rod of two lifting cylinders by bolt, the outer wall on the top of sliding plate is equipped with support assembly, the support assembly includes two fixed seats being respectively connected on the outer wall on both sides of the top of sliding plate by bolt, two mounting rods being respectively penetrated and connected on the outer wall on one side of two fixed seats by bearing, two support rollers being respectively fixed on the outer wall of two mounting rods, the transmission motor being connected on the outer wall on one side of sliding plate by bolt and the rotating shaft being connected on the outer wall on one end of the output shaft of transmission motor by coupling, the side of support plate is equipped with grinding mechanism, the grinding mechanism includes connecting shaft, the grinding roller being fixed on the outer wall of connecting shaft, two support blocks, two fixed blocks, two connecting blocks and grinding motor, the outer wall on the top of operation platform is equipped with dust collection mechanism, the dust collection mechanism includes the mounting frame being connected on the outer wall on the top of operation platform by bolt, the side door being hinged on the outer wall on one side of mounting frame, the fan being connected on the outer wall on one side of side door by bolt, the collection frame being slidably sleeved in mounting frame and the sealing plate being fixed on the outer wall on one side of mounting block and support plate.

[0010] Preferably, the outer wall on the top of operation platform is provided with a through hole, and the outer wall on the bottom of operation platform is fixedly provided with a support frame.

[0011] Preferably, the middle inner wall of the mounting block is fixedly provided with two gusset plates, and the two gusset plates are respectively fixed on the inner wall on one side of the mounting block.

[0012] Preferably, the outer wall on the bottom of the support plate is fixedly provided with a support frame, and one end of the two screw rods is respectively connected to the outer wall on one side of the two support frames through a bearing.

[0013] Preferably, the two sliding blocks are slidingly installed on the outer walls of the two sliding rails respectively, the two lifting cylinders are sleeved in the through holes respectively, four limiting rods are fixedly arranged on the bottom outer wall of the mounting seat, and the four limiting rods are penetratingly and slidingly installed on the bottom outer wall of the sliding plate.

[0014] Through the above scheme, the position of the stator core is adjusted by rotating the screw rod through the output shaft of the two adjusting motors, and the height of the stator core is adjusted by moving the mounting seat through the piston rod of the lifting cylinder.

[0015] Preferably, a driven gear is fixedly arranged on the outer wall of one end of each of the two mounting rods, one end of the rotating shaft is penetratingly and connected to the outer wall of one side of the fixed seat through a bearing, a driving gear is fixedly arranged on the outer wall of one end of the rotating shaft, and the driving gear is meshed with the two driven gears to form transmission cooperation.

[0016] Preferably, a fixed groove is arranged between the support block and the fixed block, the connecting shaft is inserted into the two fixed grooves, one of the connecting blocks is penetratingly and connected to the outer wall of one side of the support plate through a bearing, the other connecting block is penetratingly and connected to the outer wall of one side of the mounting block through a bearing, and the polishing motor output shaft is connected to the outer wall of one end of the connecting block through a shaft coupling.

[0017] Through the above scheme, the driving gear is rotated by rotating the output shaft of the transmission motor, the driving gear drives the two driven gears and the two supporting rollers to rotate in the same direction, the stator core is fixed by the cooperation of the two supporting rollers and the polishing roller, the stator core is rotated by the rotation of the two supporting rollers, then the polishing roller and the stator core rotate in opposite directions, and the stator core is polished.

[0018] Preferably, the upper part of the collecting frame abuts against the top outer wall of the mounting frame, the bottom of the sealing plate abuts against the top outer wall of the collecting frame, a conveying pipe is fixedly arranged on the bottom outer wall of the sealing plate, a connecting plate is fixedly arranged on the outer wall of one end of the conveying pipe, one side of the connecting plate is fixedly arranged on one side of the mounting block and the support plate respectively, a dust collecting cover is connected to one side of the outer wall of the connecting plate through bolts, and one end of the conveying pipe is fixedly arranged on one side of the inner wall of the dust collecting cover.

[0019] Through the above scheme, the stator core is polished by the operation of the polishing roller, the dust generated during polishing is blown into the dust collecting cover, the dust at the dust collecting cover is sucked into the conveying pipe by the operation of the fan, and then the dust is conveyed into the collecting frame to collect the dust generated during polishing.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The output shaft of the drive motor rotates, driving the drive gear to rotate. The drive gear drives two driven gears and two support rollers to rotate in the same direction. At the same time, the two support rollers cooperate with the grinding roller to press and fix the stator core. The rotation of the two support rollers drives the stator core to rotate. Then the grinding roller rotates in the opposite direction to the stator core, thus grinding the stator core. After removing the two fixing blocks, the connecting shaft can be taken out and separated from the support blocks. This allows for quick disassembly and assembly of the grinding roller, and enables comprehensive grinding of the stator core, improving grinding efficiency.

[0022] 2. The grinding roller grinds the stator core. The dust generated during grinding is blown into the dust collection hood. The fan draws the dust from the dust collection hood into the conveying pipe, and then conveys the dust into the collection frame to collect the dust generated during grinding. This method can collect the dust generated during grinding, prevent a large amount of dust from drifting into the external environment, and improve practicality.

[0023] In summary, this utility model enables quick assembly and disassembly of the grinding roller, and allows for comprehensive grinding of the stator core, thus improving grinding efficiency. It also collects the dust generated during grinding, preventing a large amount of dust from scattering into the external environment, thereby enhancing its practicality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a stator core grinding device for motor production proposed in this utility model.

[0025] Figure 2 This utility model presents a three-dimensional structural diagram of the slide rail and mounting mechanism of a stator core grinding device for motor production.

[0026] Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism of a stator core grinding device for motor production proposed in this utility model.

[0027] Figure 4 This is a three-dimensional structural diagram of the lifting mechanism of a stator core grinding device for motor production proposed in this utility model.

[0028] Figure 5 This is a bottom view of the lifting mechanism of a stator core grinding device for motor production proposed in this utility model.

[0029] Figure 6 This is a three-dimensional structural diagram of the support component of a stator core grinding device for motor production proposed in this utility model.

[0030] Figure 7 This is a side view of the support assembly of a stator core grinding device for motor production proposed in this utility model.

[0031] Figure 8 The utility model provides a kind of polishing mechanism main view structural schematic diagram of stator core polishing device for motor production.

[0032] Figure 9 The utility model provides Figure 8 The enlarged structure schematic diagram of middle A.

[0033] Figure 10 The utility model provides a kind of polishing mechanism main view structural schematic diagram of stator core polishing device for motor production.

[0034] Figure 11 The utility model provides a kind of polishing mechanism main view structural schematic diagram of stator core polishing device for motor production.

[0035] In the figure: 1, operation platform;2, support frame;3, sliding rail;4, mounting mechanism;401, mounting block;402, support plate;403, top plate;5, adjusting mechanism;501, mounting plate;502, adjusting motor;503, screw;504, threaded block;505, fixed plate;6, lifting mechanism;601, sliding plate;602, sliding block;

[0036] 603, lifting cylinder;604, mounting seat;605, limit rod;

[0037] 702, mounting rod;703, support roller;704, driven gear;705, mounting plate;706, transmission motor;707, rotating shaft;708, driving gear;8, polishing mechanism;801, connecting shaft;802, polishing roller;803, support block;804, fixed block;805, connecting block;806, polishing motor;9, dust collection mechanism;901, mounting frame;902, side door;903, fan;904, collection frame;905, sealing plate;906, conveying pipe;907, connecting plate;908, dust collection cover. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0039] Embodiment 1, refer to Figures 1-5The utility model provides a kind of stator core grinding device for motor production, including the operating table 1 of the through hole being opened in top outer wall and the support frame 2 being fixed to the bottom outer wall of operating table 1, two slide rails 3 are connected on the top outer wall of operating table 1 by bolt, operating table 1 top outer wall is equipped with mounting mechanism 4, mounting mechanism 4 includes the mounting block 401 being fixed to the top outer wall of operating table 1 and the support plate 402 being fixed to the top outer wall of operating table 1, two gusset plates are fixed to the inner wall of the middle part of mounting block 401, two gusset plates are respectively fixed to the inner wall of one side of mounting block 401, top plate 403 is connected on the top outer wall of mounting block 401 by bolt, and the bottom of top plate 403 is connected on the top outer wall of support plate 402 by bolt, operating table 1 top outer wall is equipped with adjusting mechanism 5, adjusting mechanism 5 includes the mounting plate 501 being connected on the outer wall of one side of mounting block 401 by bolt, two adjusting motors 502 are respectively connected on the outer wall of one side of mounting plate 501 by bolt, two screw rods 503 are respectively connected on the outer wall of one end of the output shaft of two adjusting motors 502 by coupling, and two threaded blocks 504 are respectively screwed on the outer wall of two screw rods 503, fixed plate 505 is fixed on the lower outer wall of both sides of support plate 402, one end of two screw rods 503 is respectively connected on the outer wall of one side of two fixed plates 505 by bearing, one side of support plate 402 is equipped with lifting mechanism 6, lifting mechanism 6 includes the sliding plate 601 being fixed on the bottom outer wall of two threaded blocks 504, two sliding blocks 602 are respectively connected on the bottom outer wall of sliding plate 601 by bolt, two lifting cylinders 603 are respectively connected on the bottom outer wall of sliding plate 601 by bolt, and mounting seat 604 is connected on the outer wall of the top end of piston rod of two lifting cylinders 603 by bolt, two sliding blocks 602 are respectively slidingly installed on the outer wall of two slide rails 3, two lifting cylinders 603 are respectively sleeved in through hole, four limit rods 605 are fixed on the bottom outer wall of mounting seat 604, and four limit rods 605 are respectively penetrated and slidingly installed on the bottom outer wall of sliding plate 601.

[0040] Example 2, with reference to Figures 6-9The motor production stator core polishing device further includes a supporting assembly 7, the supporting assembly 7 includes two fixed seats 701 which are respectively connected to the outer walls on the two sides of the top of the sliding plate 601 through bolts, two mounting rods 702 which are respectively penetrated through the outer walls on the two sides of the two fixed seats 701 and are connected to the outer walls on the two sides of the two fixed seats 701 through bearings, two supporting rollers 703 which are respectively fixed to the outer walls of the two mounting rods 702, a transmission motor 706 which is connected to the outer wall on the side of the sliding plate 601 through a bolt and a rotating shaft 707 which is connected to the outer wall on the one end of the output shaft of the transmission motor 706 through a shaft coupling, the outer wall on the one end of each of the two mounting rods 702 is fixedly provided with a driven gear 704, the one end of the rotating shaft 707 is penetrated through the outer wall on the one side of the fixed seat 701 and is connected to the outer wall on the one side of the fixed seat 701 through a bearing, the outer wall on the one end of the rotating shaft 707 is fixedly provided with a driving gear 708, the driving gear 708 is respectively engaged with the two driven gears 704 to form a transmission cooperation, one side of the supporting plate 402 is provided with a polishing mechanism 8, the polishing mechanism 8 includes a connecting shaft 801, a polishing roller 802 which is fixed to the outer wall of the connecting shaft 801, two supporting blocks 803 which are respectively provided with T-shaped grooves on the outer walls on the two sides, two fixed blocks 804 which are respectively connected to the T-shaped grooves through bolts, two connecting blocks 805 which are respectively connected to the outer walls on the two sides of the two supporting blocks 803 through bolts and have a T-shaped structure and a polishing motor 806 which is connected to the outer wall on the upper part of the mounting block 401 through a bolt, a fixed groove is arranged between the supporting block 803 and the fixed block 804, the two ends of the connecting shaft 801 are inserted into the two fixed grooves, one of the two connecting blocks 805 is penetrated through the outer wall on the one side of the supporting plate 402 and is connected to the outer wall on the one side of the supporting plate 402 through a bearing, the other connecting block 805 is penetrated through the outer wall on the one side of the mounting block 401 and is connected to the outer wall on the one side of the mounting block 401 through a bearing, the output shaft of the polishing motor 806 is connected to the outer wall on the one end of the connecting block 805 through a shaft coupling.

[0041] In the embodiment 3, refer to Figures 10-11 The motor production stator core polishing device further includes a dust collecting mechanism 9, the dust collecting mechanism 9 includes a mounting frame 901 which is connected to the outer wall on the top of the operating table 1 through a bolt, a side door 902 which is hinged to the outer wall on one side of the mounting frame 901, a fan 903 which is connected to the outer wall on one side of the side door 902 through a bolt, a collecting frame 904 which is slidingly sleeved in the mounting frame 901 and a sealing plate 905 which is fixed to the outer walls on one side of the mounting block 401 and the supporting plate 402, the upper part of the collecting frame 904 abuts against the outer wall on the top of the mounting frame 901, the bottom of the sealing plate 905 abuts against the outer wall on the top of the collecting frame 904, a conveying pipe 906 is fixed to the outer wall on the bottom of the sealing plate 905, a connecting plate 907 is fixed to the outer wall on one side of the conveying pipe 906, the connecting plate 907 is respectively fixed to the outer walls on one side of the mounting block 401 and the supporting plate 402, a dust collecting cover 908 is connected to the outer wall on one side of the connecting plate 907 through a bolt, one end of the conveying pipe 906 is fixed to the inner wall on one side of the dust collecting cover 908.

[0042] The two adjusting motors 502 drive the screw rod 503 to rotate, the screw rod 503 drives the sliding plate 601 to move, thereby adjusting the position of the stator core, the piston rod of the lifting cylinder 603 moves to drive the mounting seat 604 to rise, thereby adjusting the height of the stator core, the output shaft of the transmission motor 706 drives the driving gear 708 to rotate, the driving gear 708 drives the two driven gears 704 and the two supporting rollers 703 to rotate in the same direction, meanwhile, the two supporting rollers 703 cooperate with the polishing roller 802 to press and fix the stator core, the two supporting rollers 703 drive the stator core to rotate, then the polishing roller 802 rotates in the opposite direction of the stator core, thereby polishing the stator core, the two fixing blocks 804 are removed, the connecting shaft 801 can be taken out and separated from the supporting block 803, the polishing roller 802 rotates to polish the stator core, the dust generated during polishing is blown into the dust collecting cover 908, the fan 903 rotates to suck the dust at the dust collecting cover 908 into the conveying pipe 906, then the dust is conveyed into the collecting frame 904 to collect the dust generated during polishing.

[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0045] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A stator core polishing device for motor production, comprising an operation table (1), characterized in that, The operation platform (1) top outer wall is connected with two slide rails (3) by bolts, the operation platform (1) top outer wall is equipped with mounting mechanism (4), the mounting mechanism (4) includes the mounting block (401) fixed on the operation platform (1) top outer wall and the support plate (402) fixed on the operation platform (1) top outer wall; The operation platform (1) top outer wall is equipped with adjusting mechanism (5), the adjusting mechanism (5) includes the mounting plate (501) connected on the one side outer wall of mounting block (401) by bolts, two adjusting motors (502) are connected on the one side outer wall of mounting plate (501) by bolts respectively, two screw rods (503) are connected on the one end outer wall of the output shaft of two adjusting motors (502) by couplings respectively, and two threaded blocks (504) are screwed on the outer wall of two screw rods (503) respectively; The one side of support plate (402) is equipped with lifting mechanism (6), the lifting mechanism (6) includes the sliding plate (601) fixed on the bottom outer wall of two threaded blocks (504), two sliding blocks (602) connected on the bottom outer wall of sliding plate (601) by bolts respectively, two lifting cylinders (603) connected on the bottom outer wall of sliding plate (601) by bolts respectively and mounting seat (604) connected on the top end outer wall of the piston rod of two lifting cylinders (603) by bolts, two sliding blocks (602) are slidingly installed on the outer wall of two slide rails (3) respectively, two lifting cylinders (603) are sleeved in the through hole, four limit rods (605) are fixed on the bottom outer wall of mounting seat (604), and four limit rods (605) are respectively penetrated and slidingly installed on the bottom outer wall of sliding plate (601); The top outer wall of sliding plate (601) is equipped with support assembly (7), the support assembly (7) includes two fixing bases (701) connected on the top two side outer walls of sliding plate (601) by bolts respectively, two mounting rods (702) penetrating and connected on the one side outer wall of two fixing bases (701) by bearings respectively, two support rollers (703) fixed on the outer wall of two mounting rods (702) respectively, transmission motor (706) connected on the one side outer wall of sliding plate (601) by bolts and rotating shaft (707) connected on the one end outer wall of the output shaft of transmission motor (706) by couplings, the one end outer wall of two mounting rods (702) is fixed with driven gear (704) respectively, the one end of rotating shaft (707) penetrates and is connected on the one side outer wall of fixing base (701) by bearing, and the one end outer wall of rotating shaft (707) is fixed with driving gear (708), and the driving gear (708) is engaged with two driven gears (704) respectively to form transmission cooperation. One side of the support plate (402) is provided with a polishing mechanism (8), the polishing mechanism (8) comprises a connecting shaft (801), a polishing roller (802) fixed on the outer wall of the connecting shaft (801), two support blocks (803) each having a T-shaped groove on one side of the outer wall, two fixed blocks (804) each connected to the T-shaped groove through bolts, two connecting blocks (805) each having a "T" structure and connected to one side of the outer wall of the two support blocks (803) through bolts, and a polishing motor (806) connected to the outer wall of the upper part of the mounting block (401) through bolts, a fixing groove is arranged between the support block (803) and the fixed block (804), and the both ends of the connecting shaft (801) are inserted into the two fixing grooves, one of the connecting blocks (805) penetrates and is connected to one side of the outer wall of the support plate (402) through a bearing, and the other connecting block (805) penetrates and is connected to one side of the outer wall of the mounting block (401) through a bearing, and the output shaft of the polishing motor (806) is connected to one end of the outer wall of the connecting block (805) through a shaft coupling; The operating table (1) is provided with a dust collecting mechanism (9) on the top, the dust collecting mechanism (9) comprises a mounting frame (901) connected to the top outer wall of the operating table (1) through bolts, a side door (902) hinged to one side of the outer wall of the mounting frame (901), a fan (903) connected to one side of the outer wall of the side door (902) through bolts, a collecting frame (904) slidingly sleeved in the mounting frame (901), and a sealing plate (905) fixed on one side of the outer wall of the mounting block (401) and the support plate (402).

2. The stator core polishing device for motor production according to claim 1, characterized in that, A through hole is formed in the top outer wall of the operating table (1), and a support frame (2) is fixed on the bottom outer wall of the operating table (1).

3. The stator core polishing device for motor production according to claim 1, characterized in that, Two gusset plates are fixed on the inner wall of the middle of the mounting block (401), and the two gusset plates are respectively fixed on one side of the inner wall of the mounting block (401), a top plate (403) is connected to the top outer wall of the mounting block (401) through bolts, and the bottom of the top plate (403) is connected to the top outer wall of the support plate (402) through bolts.

4. The stator core polishing device for motor production according to claim 1, characterized in that, A fixed plate (505) is fixed on the lower outer wall of each side of the support plate (402), and one end of each of the two screw rods (503) is connected to one side of the outer wall of each of the two fixed plates (505) through a bearing.

5. The stator core polishing device for motor production according to claim 1, characterized in that, The upper part of the collecting frame (904) abuts against the top outer wall of the mounting frame (901), and the bottom of the sealing plate (905) abuts against the top outer wall of the collecting frame (904), a conveying pipe (906) is fixed on the bottom outer wall of the sealing plate (905), a connecting plate (907) is fixed on one end of the outer wall of the conveying pipe (906), one side of the connecting plate (907) is respectively fixed on one side of the outer wall of the mounting block (401) and the support plate (402), a dust collecting cover (908) is connected to one side of the outer wall of the connecting plate (907) through bolts, and one end of the conveying pipe (906) is fixed on one side of the inner wall of the dust collecting cover (908).

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