Dust extraction cutting machine

Abstract

The application discloses a dust removal cutting machine which is composed of a drive, a grinding wheel cover, a grinding wheel cover cover plate, a handle shell, a dustproof gasket and a dust collection device. The filter column arranged on the grinding wheel cover and the cover plate blocks the relatively large particles generated during cutting. The dust suction fan connected to the rotor main shaft is located in the cavity of the dust suction fan outer cover connected to the tail end of the machine shell. The negative pressure generated by the rotation of the dust suction fan guides the dust generated during cutting into the dust inlet on the grinding wheel cover through the dust guide strip arranged on the cover plate and the grinding wheel cover, and more than 99% of the dust is collected into the dust collection bag through the dust collection channel. The dustproof gasket blocks formed by the dustproof gasket arranged on the rotor main shaft and the machine shell blocks arranged on the lower outer cover of the dust suction fan and the machine shell prolongs the service life of the fourth bearing connected to the rotor main shaft through secondary dustproof protection. The special-shaped cover plate is convenient for construction personnel to directly observe the reference line marked on the cut object, and standard cutting is realized.

Description

Technical Field

[0001] This invention belongs to the field of cutting technology, specifically relating to the cutting of stone, wall and floor tiles, and cement walls and floors in the building decoration and renovation industry, and specifically relating to a dust removal and cutting integrated dust removal and cutting machine technology. Background Technology

[0002] The existing cutting machines used in the building decoration industry for cutting stone, wall and floor tiles, and wall and floor surfaces have the following main shortcomings:

[0003] 1. Currently, over 98% of the cutting machines used in construction employ water-based cutting and dust removal, but some processes cannot use water-based cutting.

[0004] 2. Existing cutting dust removal machines use a cutting machine connected to a vacuum cleaner to achieve the purpose of cutting dust removal, but they are bulky, costly, and inconvenient to carry and use.

[0005] 3. There is an integrated dust removal and cutting machine that uses the principle of centrifugal force to connect a dust collection bag to the opening on the grinding wheel cover in the direction of centrifugal force of the cutting blade, allowing dust to enter the dust collection bag by itself for dust collection. This method has limited dust collection and cannot achieve the effect of completely collecting dust.

[0006] 4. Existing integrated dust removal and cutting machine technology lacks a large particle filtering device in the dust collection part of the head shell. Larger particles generated during cutting are easily sucked into the cavity of the dust collector by the negative pressure generated by the rotation of the dust collector, damaging the dust collector and resulting in a short service life.

[0007] 5. The head shell device of the existing dust removal cutting machine is unreasonable. The cutting blade is located inside the head shell. When cutting objects, the cutting blade is in a fully enclosed state. The construction personnel cannot directly see the reference lines marked on the object being cut, and cannot perform standardized cutting along the reference lines.

[0008] 6. Existing integrated dust removal and cutting machines suffer from inadequate secondary dust prevention measures for bearings in key components, resulting in a short service life and failure to meet quality and technical requirements. Summary of the Invention

[0009] To overcome the shortcomings of the prior art, the present invention provides an integrated dust removal and cutting machine with the following solution.

[0010] This application provides a dust removal cutting machine, including: a cutting machine head structure, a power component, and a dust removal component;

[0011] The head structure of the cutting machine consists of a cover plate, a locking nut, a cutting disc, an inner spring, a grinding wheel cover, a spindle, a dust cover, a front cover, a first bearing, a first snap ring, a second snap ring, a semi-circular key, a large gear, a third snap ring, a second bearing, and a head shell (the blue text should not appear here or should be deleted here) connected in sequence.

[0012] The power assembly consists of a left handle housing, a switch, a wire clamping block, a right handle housing, a protective sleeve, a power cord, a nut, a pinion, a third bearing, a middle cover, a rotor, a fourth bearing, a bearing sleeve, a stator dust seal, a stator, a housing, a carbon brush holder, a carbon brush, a brush cover, a carbon brush holder, a carbon brush, and a brush cover, which are connected in sequence.

[0013] The dust removal assembly consists of a dustproof pad A, a lower cover for the vacuum fan, a dustproof pad B, a vacuum fan, two nuts, a metal ring, an upper cover for the vacuum fan, a bend, a straight head, a telescopic hose, an outer pressure plate for the dust collection bag, an inner pressure plate for the dust collection bag, a dust collection bag, a locking strip, and a base plate, all connected together.

[0014] Based on the above technical solution, one end of the main shaft is sequentially connected to an inner spring, a cutting disc, and a locking nut, while the other end of the main shaft is sequentially connected to a dust cover, a first bearing, a second snap ring, a semi-circular key, a large gear, a third snap ring, and a second bearing. The first bearing connected to the main shaft is connected to the front cover bearing connection position on the front cover, and the front cover snap ring connection position on the front cover is connected to the first snap ring. The second bearing connected to the main shaft is connected to the head shell bearing connection position on the head shell, and the front cover screw connection hole on the front cover is connected to the head shell screw connection hole B on the head shell.

[0015] Based on the above technical solution, the cover plate is provided with a dust guide strip and a filter column; the grinding wheel cover is provided with a dust outlet, a dust inlet, a filter column, and a dust guide strip; the cover plate screw connection hole on the cover plate is connected to the grinding wheel cover screw connection hole C on the grinding wheel cover; the grinding wheel cover connecting ring on the grinding wheel cover is connected to the grinding wheel cover connection position on the front cover, and the grinding wheel cover screw connection hole A on the grinding wheel cover is fixed with screws.

[0016] Based on the above technical solution, the housing is provided with a rotor cooling air outlet, a rotor cooling air inlet, and a housing baffle; dustproof pads A and B are provided with dustproof pad fan blades and dustproof pad baffles; one end of the rotor main shaft is sequentially connected to a third bearing, a pinion, and a nut; the other end of the rotor main shaft is sequentially connected to a fourth bearing, dustproof pad A, dustproof pad B, a vacuum fan, and a nut; the housing cavity is connected to a stator dustproof ring and a stator; the third bearing connected to the rotor main shaft is connected to the middle cover. The bearing sleeve is connected to the fourth bearing on the rotor spindle; the bearing sleeve is connected to the housing bearing sleeve on the housing; the head cover screw connection hole C, the middle cover screw connection hole on the middle cover, and the housing screw connection hole A on the housing are connected accordingly; the large gear connected to the spindle meshes with the small gear connected to the rotor spindle; the housing carbon brush holder one connection point on the housing is connected to carbon brush holder one, carbon brush one, and brush cover one in sequence; the housing carbon brush holder two connection point on the housing is connected to carbon brush holder two, carbon brush two, and brush cover two in sequence.

[0017] Based on the above technical solution, the vacuum fan is provided with vacuum fan blade A and vacuum fan blade B; the lower cover of the vacuum fan is provided with a lower cover baffle; the housing screw connection hole C on the housing is connected to the lower cover screw connection hole B on the lower cover of the vacuum fan; the end face of the rear end of the housing coincides with the end face of the bottom post of the lower cover of the vacuum fan; the end face of the bottom post of the lower cover of the vacuum fan and the end face of the rear end of the housing form a through gap; the sheet metal ring is correspondingly connected to the sheet metal connection position of the lower cover of the vacuum fan and the sheet metal connection position of the upper cover of the vacuum fan; the lower cover screw connection hole A on the lower cover of the vacuum fan is connected to the vacuum fan blade B; The upper cover of the dust fan is connected by screw holes; the dust fan is located inside the integral dust fan outer cover cavity formed after the connection; the dustproof pad A connected to the rotor main shaft forms a labyrinth with the housing baffle on the casing to prevent dust from entering the fourth bearing; the dustproof pad B connected to the rotor main shaft forms a labyrinth with the dust fan lower cover baffle on the lower cover; preventing dust from changing direction by entering the upper surface of the dustproof pad A through the gap formed by the center hole on the dustproof pad B and the lower cover of the dust fan; the fan blades set on the dustproof pad A blow out of the machine body through the larger gap formed by the connection between the tail end of the casing and the lower outer cover of the dust fan.

[0018] Based on the above technical solution, the dust outlet of the grinding wheel cover on the wheel cover is connected to the air inlet of the left handle shell on the left handle shell; the dust outlet of the handle shell after the left and right handle shells are connected to the dust inlet of the curved pipe on the curved tube; the dust outlet of the curved pipe on the curved tube is connected to the dust inlet of the upper cover of the vacuum fan; the dust outlet of the outer cover of the vacuum fan formed after the lower cover of the vacuum fan is connected to the dust inlet of the direct head on the direct head; the dust outlet of the direct head is connected to one end of the telescopic hose; the other end of the telescopic hose is connected to the dust inlet of the inner pressure plate of the dust collection bag on the inner pressure plate of the dust collection bag; the screw connection holes of the inner pressure plate of the dust collection bag, the screw connection holes of the dust collection bag on the dust collection bag, and the screw connection holes of the outer pressure plate of the dust collection bag on the outer pressure plate of the dust collection bag are correspondingly connected; and the opening of the dust collection bag on the dust collection bag is connected to the snap-on connection of the snap-on connection of the snap-on connection strip.

[0019] Based on the above technical solution, the grinding wheel cover screw connection hole B on the grinding wheel cover, the base plate connection hole on the base plate, and the base plate strip opening are connected accordingly.

[0020] This application provides a water-cooled dust removal cutting machine technology, which has the following advantages:

[0021] 1. The dust removal and cutting integrated dust removal and cutting machine of the present invention has a dust suction fan connected to the main shaft at the rotor commutator end. The dust suction fan is located in the cavity of the dust suction fan cover connected to the rear of the machine housing. The dust outlet on the dust suction fan cover is connected in sequence to the direct head, the telescopic hose and the dust collection bag, realizing the integration of dust removal and cutting. Compared with the combined dust removal and cutting machine, it has the characteristics of small size, light weight, low cost and convenient use.

[0022] 2. The dust removal and cutting machine of the present invention has an irregularly shaped cover plate connected to the head shell. The construction personnel can directly see the reference lines marked on the object being cut through the transparent part, and the cutting blade can perform standardized cutting along the reference lines. The irregularly shaped cover plate makes it convenient for the construction personnel to see the reference lines marked on the object being cut, which facilitates standardized cutting.

[0023] 3. The dust removal and cutting machine of the present invention has dust guide strips and large particle filter columns on the grinding wheel cover and the irregular cover plate. The filter columns block the large particles generated during cutting and prevent them from entering the chamber of the dust collection cover and damaging the dust collection fan. The dust guide strip smoothly guides the dust generated during cutting to the dust inlet set on the head shell. The negative pressure generated by the high-speed rotating dust collection fan can collect more than 99% of the dust generated during cutting into the dust collection bag.

[0024] 4. The vacuum fan connected to the rotor shaft inside the outer casing of the vacuum fan is a double-bladed vacuum fan, which solves the problem of dust not remaining inside the outer casing of the vacuum fan. The negative pressure generated by the high-speed rotation of the vacuum fan inside the outer casing of the vacuum fan sends more than 99% of the dust into the dust collection bag for collection.

[0025] 5. This invention relates to an integrated dust removal and cutting machine. The tail end of the machine casing is connected to the lower outer cover of the dust extraction fan. The dust extraction fan is located in the cavity after the upper and lower outer covers of the outer dust extraction fan are connected. The negative pressure airflow generated by the high-speed rotating dust extraction fan carries a small amount of dust through the tiny gap formed between the hole in the lower outer cover of the dust extraction fan and the rotor main shaft. When the dust enters the upper plane of the dust extraction pad A connected to the rotor main shaft, it changes direction. The fan blades set on the dust extraction pad A blow the dust out of the machine body through the larger gap formed after the connection between the tail end of the machine casing and the lower outer cover of the dust extraction fan. Furthermore, the casing baffle and the baffle set on the dust extraction pad A form a labyrinth to prevent dust from entering the interior of the fourth bearing, thus extending the service life of the bearing at this position. Compared with the prior art, the secondary dustproof structure of the bearing can extend the service life of the same product and the same double-sided contact sealed bearing by more than 70% under the same conditions. It has the advantages of simple structure, long service life, and solves the technical problem of secondary dustproof bearing in similar products. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall external structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the unfolded structure of the components of the present invention.

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the body of the present invention.

[0029] Figure 4 This is a schematic cross-sectional view of the dust collection channel of the present invention.

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure of the spindle fittings of the present invention.

[0031] Figure 6 This is a cross-sectional structural diagram of the rotor spindle connection accessory of the present invention.

[0032] Figure 7 This is a schematic diagram of the negative pressure airflow direction inside the outer casing of the vacuum fan of the present invention.

[0033] Figure 8 This is a schematic diagram of the cover plate structure from the left side of the present invention.

[0034] Figure 9 This is a schematic diagram of the cover plate structure from the right side of the present invention.

[0035] Figure 10 This is a schematic diagram of the right-side structure of the grinding wheel cover of the present invention.

[0036] Figure 11 This is a schematic diagram of the left-side structure of the grinding wheel cover of the present invention.

[0037] Figure 12 This is a schematic diagram of the right side view of the front cover structure of the present invention.

[0038] Figure 13 This is a schematic diagram of the left-side view of the front cover structure of the present invention.

[0039] Figure 14 This is a schematic diagram of the left-side view of the head shell structure of the present invention.

[0040] Figure 15 This is a top view of the head shell structure of the present invention.

[0041] Figure 16 This is a schematic diagram of the left-hand handle shell structure of the present invention.

[0042] Figure 17 This is a schematic diagram of the left-hand handle shell structure viewed from the right.

[0043] Figure 18 This is a schematic diagram of the left-side view of the right-hand handle shell structure of the present invention.

[0044] Figure 19 This is a schematic diagram of the right-hand handle shell structure of the present invention.

[0045] Figure 20 This is a schematic diagram of the handle shell structure of the left and right handle shell connector of the present invention.

[0046] Figure 21 This is a schematic diagram of the cover structure in this invention.

[0047] Figure 22 This is a schematic diagram of the left-side structure of the casing of the present invention.

[0048] Figure 23 This is a schematic diagram of the right side view of the casing structure of the present invention.

[0049] Figure 24 This is a right-side structural schematic diagram of dustproof pad A and dustproof pad B of the present invention.

[0050] Figure 25 This is a schematic diagram of the dustproof pad A and dustproof pad B of the present invention from the left view.

[0051] Figure 26 This is a schematic diagram of the right side of the lower cover of the vacuum fan of the present invention.

[0052] Figure 27 This is a schematic diagram of the left-side structure of the lower cover of the vacuum fan of the present invention.

[0053] Figure 28 This is a schematic diagram of the right-side structure of the vacuum fan of the present invention.

[0054] Figure 29 This is a schematic diagram of the vacuum fan structure from the left side of the present invention.

[0055] Figure 30 This is a schematic diagram of the right-side structure of the upper cover of the vacuum fan of the present invention.

[0056] Figure 31 This is a schematic diagram of the left-side structure of the upper cover of the vacuum fan of the present invention.

[0057] Figure 32 This is a schematic diagram of the upper and lower cover connection structure of the vacuum fan of the present invention.

[0058] Figure 33 This is a schematic diagram of the bent pipe structure of the present invention.

[0059] Figure 34 This is a schematic diagram of the direct head structure of the present invention.

[0060] Figure 35 This is a schematic diagram of the telescopic hose structure of the present invention.

[0061] Figure 36 This is a schematic diagram of the outer pressure plate structure of the dust collection bag of the present invention.

[0062] Figure 37 This is a schematic diagram of the internal pressure plate structure of the dust collection bag of the present invention.

[0063] Figure 38 This is a schematic diagram of the dust collection bag structure of the present invention.

[0064] Figure 39 This is a schematic diagram of the bayonet strip structure of the present invention.

[0065] Figure 40 This is a schematic diagram of the base plate structure of the present invention.

[0066] Reference numerals: 1-Cover plate, 2-Locking nut, 3-Cutting disc, 4-Inner spring, 5-Grinding wheel cover, 6-Spindle, 7-Dust cover, 8-Front cover, 9-First bearing, 10-First snap ring, 11-Second snap ring, 12-Half-circular key, 13-Large gear, 14-Third snap ring, 15-Second bearing, 16-Head housing, 17-Left handle housing, 18-Switch, 19-Wire clamping block, 20-Right handle housing, 21-Sheath, 22-Power cord, 23-Nut one, 24-Pin gear, 25-Third bearing, 26-Middle cover, 27-Rotor, 28-... 4 bearings, 29-bearing sleeve, 30-stator dustproof ring, 31-stator, 32-machine housing, 33-carbon brush holder 1, 34-carbon brush 1, 35-brush cover 1, 36-carbon brush holder 2, 37-carbon brush 2, 38-brush cover 2, 39-dustproof gasket A, 40-lower cover of vacuum fan, 41-dustproof gasket B, 42-vacuum fan, 43-nut 2, 44-sheet metal ring, 45-upper cover of vacuum fan, 46-bend, 47-straight head, 48-telescopic hose, 49-outer pressure plate of dust collection bag, 50-inner pressure plate of dust collection bag, 51-dust collection bag, 52-barrel strip, 53-base plate.

[0067] 54-Cover plate screw connection hole; 55-Cover plate dust guide strip; 56-Cover plate filter column; 57-Grinding wheel cover dust outlet; 58-Grinding wheel cover connecting ring; 59-Grinding wheel cover screw connection hole A; 60-Grinding wheel cover screw connection hole B; 61-Grinding wheel cover dust inlet; 62-Grinding wheel cover screw connection hole C; 63-Grinding wheel cover filter column; 64-Grinding wheel cover dust guide strip; 65-Front cover bearing connection position; 66-Front cover retaining ring connection position; 67-Front cover screw connection hole; 68-Front cover grinding wheel cover connection position; 69-Head shell bearing connection position; 70-Head shell screw connection hole A; 71-Head shell screw connection hole B; 72-Head shell screw. Connection hole C, 73-Left handlebar housing air inlet, 74-Left handlebar housing screw connection hole A, 75-Left handlebar housing screw connection hole B, 76-Left handlebar housing wire clamping block screw connection hole, 77-Switch connection position, 78-Left handlebar housing screw connection hole C, 79-Left handlebar housing airflow and dust channel, 80-Right handlebar housing airflow and dust channel, 81-Right handlebar housing screw connection hole A, 82-Right handlebar housing screw connection hole B, 83-Right handlebar housing screw connection hole C, 84-Handlebar housing dust outlet, 85-Middle cover bearing connection position, 86-Middle cover screw connection hole, 87-Main body screw connection hole A, 88-Main body screw connection hole B 89-Carbon brush holder connection position 1 for housing; 90-Carbon bearing sleeve connection position for housing; 91-Carbon rotor cooling air outlet for housing; 92-Carbon screw connection hole C for housing; 93-Carbon tail end face for housing; 94-Carbon brush holder connection position 2 for housing; 95-Carbon rotor cooling air inlet for housing; 96-Carbon flange for housing; 97-Dustproof gasket fan blade; 98-Dustproof gasket flange; 99-Screw connection hole A for lower cover of vacuum fan; 100-Sheet metal connection position for lower cover of vacuum fan; 101-Flange flange for lower cover of vacuum fan; 102-Screw connection hole B for lower cover of vacuum fan; 103-Bottom plane of lower cover of vacuum fan; 104-End face of bottom post of lower cover of vacuum fan; 105-Fan blade A for vacuum fan. 106-Dust collector fan blade B; 107-Dust collector fan upper cover screw connection hole; 108-Dust collector fan upper cover dust inlet; 109-Dust collector fan upper cover sheet metal connection position; 110-Dust collector fan outer cover dust outlet; 111-Bend pipe dust inlet; 112-Bend pipe dust outlet; 113-Straight head dust inlet; 114-Straight head dust outlet; 115-Dust bag outer pressure plate screw connection hole; 116-Dust bag inner pressure plate dust inlet; 117-Dust bag inner pressure plate screw connection hole; 118-Dust bag screw connection hole; 119-Dust bag opening; 120-Clamping strip clamp; 121-Base plate connection hole; 122-Base plate strip opening. Detailed Implementation

[0068] The dust removal cutting machine of the present invention will be further described in detail below with reference to the accompanying drawings.

[0069] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0070] Reference Figure 1 ,2 As shown in figures 3, 4, 5, 6, and 7, the dust-removing cutting machine comprises a cover plate 1, a locking nut 2, a cutting blade 3, an inner spring 4, a grinding wheel cover 5, a main shaft 6, a dust cover 7, a front cover 8, a first bearing 9, a first retaining ring 10, a second retaining ring 11, a semi-circular key 12, a large gear 13, a third retaining ring 14, a second bearing 15, a head shell 16, a left handle shell 17, a switch 18, a wire pressing block 19, a right handle shell 20, a protective sleeve 21, a power cord 22, a nut 23, a small gear 24, a third bearing 25, a middle cover 26, and a rotor 27. The fourth bearing 28, bearing sleeve 29, stator dustproof ring 30, stator 31, housing 32, carbon brush holder 1 33, carbon brush 1 34, brush cover 1 35, carbon brush holder 2 36, carbon brush 2 37, brush cover 2 38, dustproof gasket A 39, vacuum fan lower cover 40, dustproof gasket B 41, vacuum fan 42, nut 2 43, sheet metal ring 44, vacuum fan upper cover 45, bend 46, straight head 47, telescopic hose 48, dust bag outer pressure plate 49, dust bag inner pressure plate 50, dust bag 51, clamping strip 52, and base plate 53 are connected together to form a complete unit.

[0071] Reference Figure 2 , 5 As shown in Figures 12 and 14, one end of the main shaft 6 is connected in sequence to the inner spring 4, the cutting blade 3, and the locking nut 2. The other end of the main shaft 6 is connected in sequence to the dust cover 7, the first bearing 9, the second snap ring 11, the semi-circular key 12, the large gear 13, the third snap ring 14, and the second bearing 15. The first bearing 9 connected to the main shaft 6 is connected to the front cover bearing connection position 65 on the front cover 8. The front cover snap ring connection position 66 on the front cover 8 is connected to the first snap ring 10. The second bearing 15 connected to the main shaft 6 is connected to the head shell bearing connection position 69 on the head shell 16. The front cover screw connection hole 67 on the front cover 8 is connected to the head shell screw connection hole B71 on the head shell 16.

[0072] Reference Figure 1 , 2 As shown in Figures 8, 9, 10, 11, and 13, the cover plate 1 is provided with a cover plate dust guide strip 55 and a cover plate filter column 56. The grinding wheel cover 5 is provided with a grinding wheel cover dust outlet 57, a grinding wheel cover dust inlet 61, a grinding wheel cover filter column 63, and a grinding wheel cover dust guide strip 64. The cover plate screw connection hole 54 on the cover plate 1 is connected to the grinding wheel cover screw connection hole C62 on the grinding wheel cover 5. The grinding wheel cover connecting ring 58 on the grinding wheel cover 5 is connected to the grinding wheel cover connection position 68 on the front cover 8. The grinding wheel cover screw connection hole A59 on the grinding wheel cover 5 is connected and fixed with screws.

[0073] Reference Figure 1 , 2As shown in Figures 8, 9, 10, 11, and 13, the cover plate 1 is provided with a cover plate dust guide strip 55 and a cover plate filter column 56. The grinding wheel cover 5 is provided with a grinding wheel cover dust outlet 57, a grinding wheel cover dust inlet 61, a grinding wheel cover filter column 63, and a grinding wheel cover dust guide strip 64. The cover plate screw connection hole 54 on the cover plate 1 is connected to the grinding wheel cover screw connection hole C62 on the grinding wheel cover 5. The grinding wheel cover connecting ring 58 on the grinding wheel cover 5 is connected to the grinding wheel cover connection position 68 on the front cover 8. The grinding wheel cover screw connection hole A59 on the grinding wheel cover 5 is connected and fixed with screws. The negative pressure generated by the rotation of the vacuum fan 42 collects more than 99% of the dust generated during cutting into the dust collection bag. The cover plate filter column 56 on the cover plate 1 and the grinding wheel cover filter column 63 on the grinding wheel cover 5 together prevent larger particles generated during cutting from passing through. The negative pressure generated by the rotation of the vacuum fan 42 sucks the particles into the cavity formed after the lower cover 40 and the upper cover 45 of the vacuum fan are connected, which damages the vacuum fan 42. The irregularly shaped cover plate 1 makes it easy for construction personnel to see the reference lines marked on the object being cut, which facilitates standardized cutting.

[0074] Reference Figure 2 , 3 As shown in Figures 6, 13, 21, 22, 23, 24, and 25, the housing 32 is provided with a housing screw connection hole B88, a housing rotor cooling air outlet 91, a rotor cooling air inlet 95, and a housing baffle 96. Dustproof gaskets A39 and B41 are provided with dustproof gasket fan blades 97 and dustproof gasket baffles 98. One end of the rotor 27 main shaft is sequentially connected to a third bearing 25, a pinion 24, and a first nut 23. The other end of the rotor 27 main shaft is sequentially connected to a fourth bearing 28, dustproof gasket A39, dustproof gasket B41, a vacuum fan 42, and a second nut 43. The housing 32 cavity is connected to a stator dustproof ring 30 and a stator 31. The third bearing 25 connected to the rotor 27 main shaft... The middle cover bearing connection position 85 on the middle cover 26 is connected to the fourth bearing 28 connected to the main shaft of the rotor 27, and the bearing sleeve 29 is connected to the outer bearing sleeve 29. The bearing sleeve 29 is connected to the housing bearing sleeve connection position 90 on the housing 32. The head shell screw connection hole C72, the middle cover screw connection hole 86 on the middle cover 26, and the housing screw connection hole A87 on the housing 32 are connected accordingly. The large gear 13 connected to the main shaft 6 meshes with the small gear 24 connected to the main shaft of the rotor 27. The housing carbon brush holder connection position 89 on the housing 32 is connected to the carbon brush holder 33, carbon brush 34, and brush cover 35 in sequence. The housing carbon brush holder connection position 94 on the housing 39 is connected to the carbon brush holder 36, carbon brush 37, and brush cover 38 in sequence.

[0075] Reference Figure 1 , 14As shown in Figures 16, 17, 18, 19, 20, and 22, the left handlebar housing 17 is provided with a left handlebar housing dust inlet 73 and a left handlebar housing airflow dust channel 79, and the right handlebar housing 20 is provided with a right handlebar housing airflow dust channel 80. The switch connection position 77 on the left handlebar housing 17 is connected to the switch 18, and the left handlebar housing wire clamping block screw connection hole 76 on the left handlebar housing 17 is connected to the wire clamping block 19. The power cord 22 is inserted into the sheath 21, and the power cord 22 is located in the middle position between the left handlebar housing 17 and the left handlebar housing wire clamping block screw connection hole 76 and the wire clamping block 19. The left handlebar screw connection hole C78 on the left handlebar shell 17 is connected to the right handlebar screw connection hole B82 on the right handlebar shell 20, forming an integral handlebar shell connector. The head shell screw connection hole A70 on the head shell 16 is connected to the left handlebar screw connection hole A74 on the left handlebar shell 17 and the right handlebar screw connection hole A81 on the right handlebar shell 20. The housing screw connection hole B88 on the housing 32 is connected to the left handlebar screw connection hole B75 on the left handlebar shell 17 and the right handlebar screw connection hole C83 on the right handlebar shell 20.

[0076] Reference Figure 2 , 3 As shown in figures 8, 23, 24, 25, 26, 27, 28, 29, 30, 31, and 32, the vacuum fan 42 is equipped with vacuum fan blades A105 and B106, and the lower cover 40 is equipped with a lower cover flange 101. The housing screw connection hole C92 on the housing 32 is connected to the lower cover screw connection hole B102 on the lower cover 40. The tail end face 93 of the housing is... The bottom post end face 104 of the lower dust collector cover 40 coincides with the bottom post end face 104 of the lower dust collector cover 40, forming a large through gap 57 with the tail end face 93 of the housing. The sheet metal ring 44 is connected to the sheet metal connection position 100 of the lower dust collector cover 40 and the sheet metal connection position 109 of the upper dust collector cover 45. The screws on the lower dust collector cover 40 are... The connecting hole A99 is connected to the upper cover screw connection hole 107 on the upper cover of the vacuum fan 45. The vacuum fan 42 is located in the integral vacuum fan outer cover cavity formed after the connection. The dustproof pad edge 98 on the dustproof pad A39 connected to the main shaft of the rotor 27 and the housing edge 96 on the housing 32 form a labyrinth to prevent dust from entering the fourth bearing 28. The dustproof pad B41 connected to the main shaft of the rotor 27 and the lower cover edge 101 on the lower cover of the vacuum fan 40 form a labyrinth to prevent dust from passing through. When a small amount of dust enters the upper surface of the dustproof pad A39 through the small gap formed by the center hole on the lower cover of the vacuum fan 40 and the dustproof pad B41 connected to the main shaft of the rotor 27, it changes direction and is then blown to the outside of the machine body through the larger gap formed after the connection between the housing 32 and the lower cover of the vacuum fan 40 via the dustproof pad fan blade 97 set on the dustproof pad A39.

[0077] Referring to Figures 1, 10, 16, 20, 32, 33, 34, 35, 36, 37, 38, and 39, the dust outlet 57 of the grinding wheel cover 5 is connected to the air inlet 73 of the left handle cover 17. The dust outlet 84 of the handle cover formed by connecting the left handle cover 17 and the right handle cover 20 is connected to the bent pipe dust inlet 111 of the bent pipe 46. The bent pipe dust outlet 112 of the bent pipe 46 is connected to the dust inlet 108 of the upper dust cover 45 of the dust collector fan. The dust outlet 11 of the lower dust collector fan cover 40 formed by connecting the upper dust collector fan cover 45 is the dust outlet 11 of the dust collector fan cover. 0 is connected to the dust inlet 113 on the direct head 47. The dust outlet 114 on the direct head 47 is connected to one end of the telescopic hose 48. The other end of the telescopic hose 48 is connected to the dust inlet 116 on the dust inlet plate 50. The dust inlet plate screw connection hole 117 on the dust inlet plate 50, the dust inlet plate screw connection hole 118 on the dust inlet bag 51, and the dust inlet plate screw connection hole 115 on the outer plate 49 are connected accordingly. The dust inlet 119 on the dust inlet bag 51 is connected to the snap 120 on the snap 52.

[0078] Referring to Figures 1, 2, 10, and 40, the grinding wheel cover screw connection hole B60 on the grinding wheel cover 5, the base plate connection hole 121 on the base plate 54, and the base plate strip opening 122 are connected accordingly.

[0079] Instructions for use:

[0080] The usage method of this dust removal cutting machine is basically the same as that of existing cutting machines. Before using the dust removal cutting machine, first check whether the external parts of the machine body are loose. Then connect the power supply, turn on the main power switch, and check for any abnormal noises or odors. Do not point the air outlet on the dust collection cover towards the human body. After normal operation, disconnect the power supply. Then connect the direct head on the dust collection bag assembly to the dust outlet on the dust collection fan cover. Then connect the locking strip to the opening of the dust collection bag. Turn on the power to use it. During use, when the dust in the dust collection bag reaches about 30% of the dust collection bag volume, you should stop working, remove the locking strip on the opening of the dust collection bag, empty the dust, and reinstall the locking strip to continue using it.

[0081] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-removing cutting machine, characterized in that, include: Cutting machine head structure, power components, dust removal components; The head structure of the cutting machine is composed of a cover plate (1), a locking nut (2), a cutting blade (3), an inner spring (4), a grinding wheel cover (5), a main shaft (6), a dust cover (7), a front cover (8), a first bearing (9), a first snap ring (10), a second snap ring (11), a semi-circular key (12), a large gear (13), a third snap ring (14), a second bearing (15), and a head shell (16) connected in sequence. The power assembly is composed of the left handle housing (17), switch (18), wire clamp (19), right handle housing (20), sheath (21), power cord (22), nut one (23), pinion (24), third bearing (25), middle cover (26), rotor (27), fourth bearing (28), bearing sleeve (29), stator dust ring (30), stator (31), housing (32), carbon brush holder one (33), carbon brush one (34), brush cover one (35), carbon brush holder two (36), carbon brush two (37), and brush cover two (38) connected in sequence. The dust removal assembly consists of a dustproof pad A (39), a lower cover of the dust collector fan (40), a dustproof pad B (41), a dust collector fan (42), a second nut (43), a metal ring (44), an upper cover of the dust collector fan (45), a bent pipe (46), a straight head (47), a telescopic hose (48), an outer pressure plate of the dust collection bag (49), an inner pressure plate of the dust collection bag (50), a dust collection bag (51), and a locking strip (52) connected together. The cover plate (1) is provided with a cover plate dust guide strip (55) and a cover plate filter column (56); the grinding wheel cover (5) is provided with a grinding wheel cover dust outlet (57), a grinding wheel cover dust inlet (61), a grinding wheel cover filter column (63), and a grinding wheel cover dust guide strip (64); the cover plate screw connection hole (54) on the cover plate (1) is connected to the grinding wheel cover screw connection hole C (62) on the grinding wheel cover (5); the grinding wheel cover connecting ring (58) on the grinding wheel cover (5) is connected to the grinding wheel cover connection position (68) on the front cover (8); the grinding wheel cover screw connection hole A (59) on the grinding wheel cover (5) is connected and fixed with screws; The housing (32) is provided with housing screw connection hole B (88), housing rotor cooling air outlet (91), rotor cooling air inlet (95), and housing baffle (96); the dustproof pad A (39) is provided with dustproof pad fan blade (97), dustproof pad baffle (98), and dustproof pad B (41); one end of the rotor (27) main shaft is connected in sequence with the third bearing (25), pinion (24), and nut one (23); the other end of the rotor (27) main shaft is connected in sequence with the fourth bearing (28), dustproof pad A (39), dustproof pad B (41), vacuum fan (42), and nut two (43); the cavity of the housing (32) is connected with the stator dustproof ring (30) and the stator (31), and the third bearing (25) connected to the rotor (27) main shaft is connected to the middle cover bearing on the middle cover (26). (85) Connect the fourth bearing (28) connected to the main shaft of the rotor (27) to the outer bearing sleeve (29); the bearing sleeve (29) is connected to the housing sleeve connection position (90) on the housing (32); the head shell screw connection hole C (72) on the head shell (16), the middle cover screw connection hole (86) on the middle cover (26), and the housing screw connection hole A (87) on the housing (32) are connected accordingly; the large gear (13) connected to the main shaft (6) and the small gear (24) connected to the main shaft of the rotor (27) mesh with each other; the housing carbon brush holder connection position (89) on the housing (32) is connected to the carbon brush holder (33), carbon brush (34), and brush cover (35) in sequence; the housing carbon brush holder connection position (94) on the housing (32) is connected to the carbon brush holder (36), carbon brush (37), and brush cover (38) in sequence; The vacuum fan (42) is provided with vacuum fan blades A (105) and B (106); the vacuum fan lower cover (40) is provided with a vacuum fan lower cover baffle (101); the housing screw connection hole C (92) on the housing (32) is connected to the vacuum fan lower cover screw connection hole B (102) on the vacuum fan lower cover (40); the end face (93) of the housing end coincides with the end face (104) of the bottom post of the vacuum fan lower cover on the vacuum fan lower cover (40); the end face (104) of the bottom post of the vacuum fan lower cover on the vacuum fan lower cover (40) and the end face (93) of the housing end form a through gap; the sheet metal ring (44) is connected to the sheet metal connection position (100) of the vacuum fan lower cover on the vacuum fan lower cover (40), and the vacuum... The upper cover of the fan (45) is connected to the metal sheet connecting position (109); the lower cover of the fan (40) is connected to the upper cover of the fan (45) by screw connecting hole A (99); the upper cover of the fan (45) is connected to the upper cover of the fan (45) by screw connecting hole (107); the fan (42) is located in the overall fan outer cover cavity formed after connection; the dustproof pad edge (98) on the dustproof pad A (39) connected to the main shaft of the rotor (27) and the housing edge (96) on the housing (32) form a labyrinth to prevent dust from entering the fourth bearing (28); the dustproof pad B (41) connected to the main shaft of the rotor (27) and the lower cover of the fan (40) form a labyrinth behind the dustproof pad edge (101); When a small amount of dust enters the upper surface of the dustproof pad A (39) through the tiny gap formed by the center hole on the lower cover (40) of the dust collector and the dustproof pad B (41) connected to the main shaft of the rotor (27), it changes direction and is then blown to the outside of the machine body through the dustproof pad fan blades (97) set on the dustproof pad A (39) from the larger gap formed after the connection between the housing (32) and the lower cover (40) of the dust collector.

2. The dust-removing cutting machine according to claim 1, characterized in that, One end of the main shaft (6) is connected in sequence to the inner spring (4), the cutting blade (3), and the locking nut (2). The other end of the main shaft (6) is connected in sequence to the dust cover (7), the first bearing (9), the second snap ring (11), the semi-circular key (12), the large gear (13), the third snap ring (14), and the second bearing (15). The first bearing (9) connected to the main shaft (6) is connected to the front cover bearing connection position (65) on the front cover (8). The front cover snap ring connection position (66) on the front cover (8) is connected to the first snap ring (10). The second bearing (15) connected to the main shaft (6) is connected to the head shell bearing connection position (69) on the head shell (16). The front cover screw connection hole (67) on the front cover (8) is connected to the head shell screw connection hole B (71) on the head shell (16).

3. The dust-removing cutting machine according to claim 1, characterized in that, The dust outlet (57) of the grinding wheel cover (5) is connected to the air inlet (73) of the left handle cover (17); the dust outlet (84) of the handle cover after the left handle cover (17) and the right handle cover (20) are connected to the dust inlet (111) of the bent pipe (46); the dust outlet (112) of the bent pipe (46) is connected to the dust inlet (108) of the upper cover of the vacuum fan (45); the dust outlet (110) of the outer cover of the vacuum fan formed after the lower cover (40) of the vacuum fan and the upper cover (45) are connected to the dust inlet (113) of the direct head (47). Connect; the dust outlet (114) on the direct head (47) is connected to one end of the telescopic hose (48); the other end of the telescopic hose (48) is connected to the dust inlet (116) on the inner pressure plate of the dust collection bag (50); the inner pressure plate screw connection hole (117) on the inner pressure plate of the dust collection bag (50), the dust collection bag screw connection hole (118) on the dust collection bag (51), and the outer pressure plate screw connection hole (115) on the outer pressure plate of the dust collection bag (49) are connected accordingly; the dust collection bag opening (119) on the dust collection bag (51) is connected to the snap-on snap (120) on the snap-on strip (52).

4. The dust-removing cutting machine according to claim 1, characterized in that, The grinding wheel cover screw connection hole B (60) on the grinding wheel cover (5), the bottom plate connection hole (121) on the bottom plate (53), and the bottom plate strip opening (122) are connected accordingly.

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