CN212330534U - Wall polisher with from dust collection structure - Google Patents
Wall polisher with from dust collection structure Download PDFInfo
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- CN212330534U CN212330534U CN202021860845.5U CN202021860845U CN212330534U CN 212330534 U CN212330534 U CN 212330534U CN 202021860845 U CN202021860845 U CN 202021860845U CN 212330534 U CN212330534 U CN 212330534U
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- dust
- fan blade
- cover
- output shaft
- channel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/182—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings
- B24B7/184—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings pole sanders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
- B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a wall surface polisher with a self-dust-absorption structure, which comprises a motor, a casing, fan blades, a fan blade cover, a polishing disc, abrasive paper and a dust-blocking dust-collecting cover; the motor is fixed in the shell, the output shaft extends downwards, and the shell is provided with a dust outlet; the fan blade is fixed on the output shaft and is close to one end of the motor, and the fan blade cover is provided with a dust channel and is arranged on the outer side of the fan blade; the abrasive paper is fixed on the abrasive disk and positioned on one side facing the wall body, and the abrasive disk is in transmission connection with the output shaft through a transmission mechanism 8 and is arranged at one end far away from the motor; the abrasive paper and the grinding disc are both provided with corresponding dust exhaust ports; the dust blocking and collecting cover is arranged outside the polishing disc, a gap exists between the dust blocking and collecting cover and the polishing disc, a dust exhaust hole is formed in the dust blocking and collecting cover, one end of the dust exhaust hole is communicated with the dust exhaust port, the other end of the dust exhaust hole is communicated with the dust channel, and the dust channel is communicated with the dust outlet. The utility model discloses compact structure, wind channel reasonable in design has the fender dirt dust cage, and dust collecting effect is good, avoids environmental pollution.
Description
Technical Field
The utility model relates to a machine-building technical field for the building, more specifically the wall polisher with from dust collection structure that says so relates to.
Background
The wall surface polisher is an electric tool which takes electric power as power and drives abrasive sheets on the end face of a polishing disc to rotate at a high speed to polish and clean the surface of a wall. The polishing mode has higher efficiency than the manual polishing mode;
most of the prior grinding machines do not have a dust collection function and need to be additionally connected with a dust collector, or the prior grinding machines have unreasonable structural design with the dust collection function and weak dust collection capability and cannot effectively suck out dust generated during grinding.
Along with the requirement of operational environment raise dust pollution is stricter and stricter, the workman is to the improvement of healthy demand, consequently, how to provide a compact structure, reasonable in design, the dust absorption effect is good, avoids environmental pollution, the wall polisher that has from the dust collection structure of being convenient for the wall to polish is the problem that the technical staff in the field needs to solve urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a compact structure, reasonable in design, the dust absorption effect is good, avoids environmental pollution, the wall of being convenient for is polished have from the wall polisher of dust absorption structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a wall surface grinding machine with a self-dust-absorption structure comprises a motor, a shell, fan blades, a fan blade cover, a grinding disc, abrasive paper and a dust-blocking dust-collecting cover;
the motor is fixed in the shell, an output shaft extends downwards, and a dust outlet is formed in the shell;
the fan blade is fixed on the output shaft and is close to one end of the motor, and the fan blade cover is provided with a dust channel and is arranged on the outer side of the fan blade;
the abrasive paper is fixed on the abrasive disk and positioned on one side facing the wall body, and the abrasive disk is in transmission connection with the output shaft through a transmission mechanism and is arranged at one end far away from the motor; the abrasive paper and the grinding disc are both provided with corresponding dust exhaust ports;
the dust-blocking dust-collecting cover is arranged on the outer side of the polishing disc, a gap exists between the dust-blocking dust-collecting cover and the polishing disc, a dust exhaust hole is formed in the dust-blocking dust-collecting cover, one end of the dust exhaust hole is communicated with the dust exhaust port, the other end of the dust exhaust hole is communicated with the dust channel, and the dust channel is communicated with the dust outlet.
The utility model relates to a from wall polisher of taking dust collection structure, through to the rational overall arrangement of wall polisher structure, form the self-priming force through the rotation of motor drive fan blade, through dust exhaust mouth and dust exhaust hole intercommunication, the dust exhaust hole communicates with dust channel, dust channel communicates with dust outlet, form from dust collection system, compared with the prior art, its structure is compacter, when the wall is polished to the abrasive paper on the polishing disc, one part of the dust that grinds down flows to the self-priming air channel entry that the dust channel forms through the dust exhaust mouth on polishing disc and the abrasive paper, one part is thrown to all around, the dust collecting cover that keeps off blocks to throw to all around dust, concentrate the dust to the dust channel by the dust collecting cover that keeps off; the utility model discloses dust absorption effect is better, avoids environmental pollution.
Furthermore, the fan blade cover comprises a fan blade top cover and a fan blade bottom cover which are arranged on the upper side and the lower side of the fan blade;
the middle part of the fan blade top cover is provided with a through hole, and the output shaft penetrates through the through hole and is connected with the through hole in a rotating and sealing way; wear-resisting pieces are arranged on the periphery and the inner side and the outer side of the through hole; the upper end face of the fan blade top cover is provided with a plurality of bulges, a plurality of grooves are formed in the shell corresponding to the bulges, and the bulges are inserted into the grooves;
the dust channel is arranged in the middle of the fan blade bottom cover, and an opening is formed in the side end of the fan blade bottom cover and forms the dust outlet with the machine shell.
Further, still include the VD sealing washer, the VD sealing washer is located fan blade and butt the wear pad.
The utility model discloses fan blade overhead guard upper portion has a plurality of archs, and the card has realized out dirt mouth circumference location in going into the recess of casing, has prevented the rotation of fan blade cover to the VD sealing washer on fan blade upper portion supports the wear pad and realizes sealedly, prevents that the air inflow fan blade cover of casing and prevents that the dust from getting into the bearing, leads to the bearing card to die.
Further, the dish of polishing includes round platform type main part, the dust exhaust mouth is a plurality of and follows round platform type main part center is the circumference and arranges along diameter direction, the dust exhaust mouth with the edge has been seted up to the side of one side of abrasive paper contact round platform type main part direction of rotation's convex groove of drawing gas, the opposite side of round platform type main part is located locate the inclined plane boss that sets up along diameter direction between the dust exhaust mouth, inclined plane boss to round platform type main part direction of rotation tilt up.
The utility model discloses there is bellied inclined plane boss polishing dish upper portion, produces updraft under the effect of inclined plane boss when polishing the dish and rotating. The lower part of the polishing disc and the joint surface of the abrasive paper are provided with air guide grooves which are communicated with the dust exhaust port to form an air path, so that the dust of the dust exhaust port moves upwards.
Furthermore, dust blocking sheets are fixed on the peripheral sides of the dust blocking and collecting covers, the adjacent dust blocking sheets are arranged in an overlapped mode in a head-tail staggered mode, brushes are fixed on the outer sides of the dust blocking sheets, and the brushes are arranged in two rows and are arranged in a staggered mode.
The utility model discloses being thrown away to dust all around by the dish of polishing and being blocked by the fender dirt piece and the brush that the mistake falls to overlap. The brush blocks part of the air inlet passage, negative pressure can be formed in the dust collecting and blocking cover, the gap at the overlapping part of the dust blocking sheets can be used for air inlet, and dust is gathered inwards by the negative pressure.
Furthermore, the surface of the dust-blocking dust-collecting hood opposite to the upper part of the polishing disc is provided with an upward spiral surface, and dust is effectively concentrated on the spirally-rising surface at the dust exhaust hole, so that the dust can be sucked away more quickly.
Further, still include middle lid, middle lid is located the outside of fan blade under casing and with casing lower extreme week side fixed sealing connection, the wind channel has been seted up to the side at middle part of the middle lid, the dust exhaust hole with the wind channel intercommunication, middle lid middle part is equipped with the bearing, the output shaft with the bearing is fixed and extend to the middle lid outside.
The dust exhausting hole of the dust-blocking dust-collecting cover of the utility model is inserted into the air duct of the middle cover, and the dust enters the middle cover through the dust-blocking dust-collecting cover. And the middle part of the upper end of the middle cover and the middle part of the fan blade bottom cover are provided with dust channels, and dust enters the fan blade cover through the middle part of the middle cover. The air inlet structure realizes air inlet from the bottom of the middle part of the self-suction fan blade, and the periphery of the self-suction fan blade is sealed, so that strong negative pressure and large air volume are realized.
Furthermore, the transmission mechanism comprises a driven gear and a reduction gearbox, the driven gear is in transmission connection with the output shaft, the reduction gearbox is in transmission connection with the driven gear, the reduction gearbox is provided with a second output shaft, and the polishing disc is fixed with the second output shaft.
The dust collector further comprises a handle, the handle is hinged with the machine shell, a dust outlet channel and a dust collection bag are arranged on the handle, the dust outlet is communicated with the dust outlet channel through a dust outlet hose, and the dust collection bag is arranged at the tail end of the handle and is communicated with the dust outlet channel.
The utility model discloses air and dust are along with going out in the handle that the dirt hose got into the connection. The handle is connected with the dust collecting bag through a connecting hose. Air and dust enter the dust collecting bag after passing through the handle. The dust is filtered in the bag to expel clean air.
Further, the motor is a high power density brushless motor.
Compared with the prior art, the utility model, change traditional brush motor into brushless motor, do not have the carbon brush, realize zero maintenance basically, prolonged life effectively, can also realize high rotational speed, the rate of operation is high when high-speed low torque, and has high torque when the low speed, has improved work efficiency widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a wall surface polisher with a self-dust-absorption structure according to the present invention;
fig. 2 is an exploded view of a wall surface sander with a self-dust-collection structure according to the present invention;
fig. 3 is a schematic three-dimensional structure diagram of a polishing disc structure in the wall surface polishing machine with a self-dust-absorption structure according to the present invention;
fig. 4 is a perspective view of a polishing disc in a wall surface polishing machine with a self-dust-absorption structure according to the present invention;
fig. 5 is a schematic view of a blade top cover in a wall surface grinding machine with a self-dust-absorption structure according to the present invention;
fig. 6 is a schematic structural view of a dust-blocking dust-collecting cover in the wall surface polisher with a self-dust-collecting structure according to the present invention.
Wherein, 1 is a motor; 2 is a shell; 3 is a fan blade; 4 is a fan blade cover; 5 is a polishing disc; 6 is sand paper; 12 is a VD sealing ring; 21 is a dust outlet; 41 is a dust channel; 42 is a fan blade top cover; 43 is a fan blade bottom cover; 421 is a projection; 422 is a wear-resistant sheet; 51 is a truncated cone-shaped body; 52 is a bleed air groove; 53 is a bevel boss; 61 is a dust exhaust port; 7 is a dust-blocking dust-collecting cover, 71 is a dust exhaust hole; 72 is a dust-proof sheet; 73 is a brush, 8 is a transmission mechanism; 81 is a driven gear; 82 is a reduction gearbox; 9 is a middle cover; 10 is a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 6, the embodiment of the present invention discloses a wall surface grinding machine with a self-dust-absorption structure, which includes a motor 1, a casing 2, a fan blade 3, a fan blade cover 4, a grinding disc 5, abrasive paper 6 and a dust-blocking dust-collecting cover 7;
the motor 1 is fixed in the casing 2, the output shaft extends downwards, and the casing 2 is provided with a dust outlet 21;
the fan blade 3 is fixed on the output shaft and is close to one end of the motor 1, and the fan blade cover 4 is provided with a dust channel 41 and is arranged on the outer side of the fan blade 3;
the abrasive paper 6 is fixed on the polishing disc 5 and positioned on one side facing the wall body, and the polishing disc 5 is in transmission connection with the output shaft through a transmission mechanism 8 and is arranged at one end far away from the motor 1; the sand paper 6 and the grinding disc 5 are both provided with corresponding dust discharge ports 61;
the dust-blocking dust-collecting cover 7 is covered on the outer side of the polishing disc 5, a gap exists between the dust-blocking dust-collecting cover 7 and the polishing disc 5, a dust exhaust hole 71 is arranged on the dust-blocking dust-collecting cover 7, one end of the dust exhaust hole 71 is communicated with the dust exhaust port 61, the other end of the dust exhaust hole is communicated with the dust channel 41, and the dust channel 41 is communicated with the dust outlet 21.
The embodiment is a wall surface grinding machine with a dust collection structure, through reasonable layout of the structure of the wall surface grinding machine, the fan blade 3 is driven by the motor 1 to rotate to form self-suction force, the fan blade is communicated with the dust discharge hole 71 through the dust discharge hole 61, the dust discharge hole 71 is communicated with the dust channel 41, and the dust channel 41 is communicated with the dust outlet 21 to form a self-dust collection system, compared with the prior art, the structure of the wall surface grinding machine is more compact, when the wall surface is ground by the sand paper 6 on the grinding disc 5, part of dust ground flows to the self-suction air channel inlet formed by the dust channel 41 through the dust discharge holes 61 on the grinding disc 5 and the sand paper 6, and part of the dust is thrown to the periphery, the dust blocking dust collecting cover 7 blocks the dust thrown to the periphery, and then the dust blocking dust collecting cover 7 collects; the embodiment has better dust absorption effect and avoids environmental pollution.
In this embodiment, the fan blade cover 4 includes a fan blade top cover 42 and a fan blade bottom cover 43 disposed on the upper and lower sides of the fan blade 3;
a through hole is formed in the middle of the fan blade top cover 42, and the output shaft penetrates through the through hole and is connected in a rotating and sealing mode; wear-resistant pieces 422 are arranged on the periphery and the inner and outer sides of the through hole; the upper end surface of the fan blade top cover 42 is provided with a plurality of protrusions 421, a plurality of grooves are arranged in the casing 2 corresponding to the protrusions 421, and the protrusions 421 are inserted in the grooves;
the dust channel 41 is arranged in the middle of the fan blade bottom cover 43, and the side end of the fan blade bottom cover 43 is provided with an opening and forms a dust outlet 21 with the machine shell 2.
In this embodiment, the fan blade further comprises a VD sealing ring 12, and the VD sealing ring 12 is disposed on the fan blade 3 and abuts against the wear-resistant sheet 422.
The upper portion of the fan blade top cover 42 of the embodiment is provided with a plurality of protrusions 421 which are clamped into the grooves of the casing 2, so that circumferential positioning of the dust outlet 21 is realized, rotation of the fan blade cover 4 is prevented, and the VD sealing ring 12 on the upper portion of the fan blade abuts against the wear-resistant sheet 422 to realize sealing, so that air flowing into the fan blade cover 4 of the casing 2 is prevented, dust is prevented from entering the bearing, and the bearing is blocked.
In this embodiment, the polishing disc 5 includes a plurality of circular truncated cone-shaped main bodies 51, the dust discharge ports 61 are arranged along the center of the circular truncated cone-shaped main bodies 51 in a circumferential manner along the diameter direction, the circular arc-shaped air guide grooves 52 along the rotation direction of the circular truncated cone-shaped main bodies 51 are formed at the side end of one side of the dust discharge ports 61 contacting with the sandpaper 6, the inclined surface bosses 53 arranged along the diameter direction are formed between the dust discharge ports 61 on the other side of the circular truncated cone-shaped main bodies 51, and the inclined surface bosses 53 are inclined upward toward the rotation direction of the circular truncated cone-shaped main bodies 51.
The upper part of the grinding disc 5 of the embodiment is provided with a convex inclined plane boss 53, and when the grinding disc 5 rotates, an ascending air current is generated under the action of the inclined plane boss 53. The lower part of the grinding disc 5 and the joint surface of the sand paper 6 are provided with an air guide groove 52 which is communicated with the dust discharge port 61 to form an air path, so that the dust of the dust discharge port 61 moves upwards.
In this embodiment, the dust-blocking sheets 72 are fixed on the periphery of the dust-blocking dust-collecting cover 7, the adjacent dust-blocking sheets 72 are staggered and overlapped end to end, the brushes 73 are fixed on the outer sides of the dust-blocking sheets 72, and the brushes 73 are arranged in two rows and staggered.
In this embodiment, the dust thrown around by the grinding disc 5 is stopped by the dust-stopping pieces 72 and the brushes 73 which are staggered and overlapped. The brush 73 blocks part of the air inlet passage, negative pressure can be formed in the dust collecting and blocking cover 7, the gap at the overlapping part of the dust blocking sheets 72 can be used for air inlet, dust is gathered inwards by the negative pressure, and the dust collecting effect is better.
In this embodiment, the surface of the dust-blocking dust-collecting cover 7 opposite to the upper part of the polishing disc 5 is an upward spiral surface, and dust is effectively concentrated on the spirally rising surface at the dust discharge hole 71, so that the dust can be sucked away more quickly.
In this embodiment, still include middle lid 9, middle lid 9 is located the outside of fan blade under cover 43 and with casing 2 lower extreme week side fixed sealing connection, the wind channel has been seted up to the side in middle part of middle lid 9, dust exhaust hole 71 and wind channel intercommunication, middle lid 9 middle part is equipped with the bearing, the output shaft is fixed with the bearing and extends to the middle lid 9 outside.
The dust exhaust hole 71 of the dust-proof dust hood 7 of this embodiment is inserted into the air duct of the intermediate cover 9, and dust enters the intermediate cover 9 through the dust-proof dust hood 7. The middle part of the upper end of the middle cover 9 and the middle part of the fan blade bottom cover 43 are provided with dust channels, and dust enters the fan blade cover 4 through the middle part of the middle cover 9. The air inlet structure realizes air inlet from the bottom of the middle part of the self-suction fan blade, and the periphery of the self-suction fan blade is sealed, so that strong negative pressure and large air volume are realized, and dust collection is facilitated.
In this embodiment, the transmission mechanism 8 includes a driven gear 81 and a reduction gearbox 82, the driven gear 81 is in transmission connection with the output shaft, the reduction gearbox 82 is in transmission connection with the driven gear 81, the reduction gearbox 82 is provided with a second output shaft, and the polishing disc 5 is fixed with the second output shaft.
In this embodiment, the dust collector further comprises a handle 10, the handle 10 is hinged to the housing 2, the handle 10 is provided with a dust outlet channel and a dust bag, the dust outlet 21 is communicated with the dust outlet channel through a dust outlet hose, and the dust bag is arranged at the tail end of the handle 10 and is communicated with the dust outlet channel.
The embodiment with the dust hose enters the attached handle 10. The handle 10 is connected to the dust bag by a connecting hose. Air and dust enter the dust collecting bag after passing through the handle. The dust is filtered in the bag to expel clean air.
In the present embodiment, the motor 1 is a high power density brushless motor.
Compared with the prior art, the motor has the advantages that the traditional brush motor is changed into the brushless motor, no carbon brush is provided, zero maintenance is basically realized, the service life is effectively prolonged, high rotating speed can be realized, the operating rate is high at high speed and low torque, high torque is realized at low speed, and the working efficiency is greatly improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A wall surface grinding machine with a self-dust-absorption structure is characterized by comprising a motor (1), a machine shell (2), fan blades (3), a fan blade cover (4), a grinding disc (5), sand paper (6) and a dust-blocking dust-collecting cover (7);
the motor (1) is fixed inside the casing (2), an output shaft extends downwards, and a dust outlet (21) is formed in the casing (2);
the fan blade (3) is fixed on the output shaft and is close to one end of the motor (1), and the fan blade cover (4) is provided with a dust channel (41) and is arranged on the outer side of the fan blade (3);
the abrasive paper (6) is fixed on the abrasive disc (5) and located on one side facing a wall body, and the abrasive disc (5) is in transmission connection with the output shaft through a transmission mechanism (8) and is arranged at one end far away from the motor (1); the sand paper (6) and the grinding disc (5) are provided with corresponding dust exhaust ports (61);
the dust-proof dust hood (7) is covered on the outer side of the polishing disc (5), a gap exists between the dust-proof dust hood (7) and the polishing disc (5), a dust exhaust hole (71) is formed in the dust-proof dust hood (7), one end of the dust exhaust hole (71) is communicated with the dust exhaust port (61), the other end of the dust exhaust hole is communicated with the dust channel (41), and the dust channel (41) is communicated with the dust outlet (21).
2. The wall surface grinding machine with the self-dust-absorption structure is characterized in that the fan blade cover (4) comprises a fan blade top cover (42) and a fan blade bottom cover (43) which are arranged on the upper side and the lower side of the fan blade (3);
a through hole is formed in the middle of the fan blade top cover (42), and the output shaft penetrates through the through hole and is connected with the through hole in a rotating and sealing manner; wear-resistant pieces (422) are arranged on the periphery and the inner side and the outer side of the through hole; the upper end face of the fan blade top cover (42) is provided with a plurality of protrusions (421), a plurality of grooves are formed in the shell (2) corresponding to the protrusions (421), and the protrusions (421) are inserted into the grooves;
the dust channel (41) is arranged in the middle of the fan blade bottom cover (43), an opening is formed in the side end of the fan blade bottom cover (43) and forms the dust outlet (21) with the machine shell (2).
3. A wall grinding machine with a self-dust-absorption structure according to claim 2, characterized by further comprising a VD sealing ring (12), wherein the VD sealing ring (12) is arranged on the fan blade (3) and abuts against the wear-resistant sheet (422).
4. The wall grinding machine with the self-dust-absorption structure is characterized in that the grinding disc (5) comprises a circular truncated cone-shaped main body (51), the dust exhaust port (61) is a plurality of and follows the center of the circular truncated cone-shaped main body (51) is circumferentially arranged along the diameter direction, the dust exhaust port (61) is provided with the side end of one side contacted with the sand paper (6) and is followed the circular arc air guide groove (52) of the circular truncated cone-shaped main body (51) in the rotation direction, the other side of the circular truncated cone-shaped main body (51) is located between the dust exhaust port (61) and is provided with an inclined plane boss (53) arranged along the diameter direction, and the inclined plane boss (53) faces the circular truncated cone-shaped main body (51) in the rotation direction.
5. A wall grinding machine with a self-dust-absorption structure as claimed in claim 2, characterized in that the dust-blocking sheets (72) are fixed on the peripheral sides of the dust-blocking dust-collecting cover (7), the adjacent dust-blocking sheets (72) are overlapped in a staggered way from head to tail, the brushes (73) are fixed on the outer sides of the dust-blocking sheets (72), and the brushes (73) are arranged in two rows and staggered.
6. The wall grinding machine with the self-dust-collection structure is characterized by further comprising an intermediate cover (9), wherein the intermediate cover (9) is located outside the fan blade bottom cover (43) and is fixedly and hermetically connected with the lower end periphery of the machine shell (2), an air duct is formed in the side edge of the middle of the intermediate cover (9), the dust exhaust hole (71) is communicated with the air duct, a bearing is arranged in the middle of the intermediate cover (9), and the output shaft is fixed with the bearing and extends to the outside of the intermediate cover (9).
7. A wall grinding machine with a self-dust-absorption structure according to claim 6, characterized in that the transmission mechanism (8) comprises a driven gear (81) and a reduction box (82), the driven gear (81) is in transmission connection with the output shaft, the reduction box (82) is in transmission connection with the driven gear (81), the reduction box (82) is provided with a second output shaft, and the grinding disc (5) is fixed with the second output shaft.
8. The wall grinding machine with the self-dust-collection structure is characterized by further comprising a handle (10), wherein the handle (10) is hinged to the casing (2), a dust outlet channel and a dust collection bag are arranged on the handle (10), the dust outlet (21) is communicated with the dust outlet channel through a dust outlet hose, and the dust collection bag is arranged at the tail end of the handle (10) and is communicated with the dust outlet channel.
9. A wall grinding machine with self-dust-collection structure according to any of claims 1-8, characterized in that the motor (1) is a high power density brushless motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020214037337 | 2020-07-16 | ||
| CN202021403733 | 2020-07-16 |
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| Publication Number | Publication Date |
|---|---|
| CN212330534U true CN212330534U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021860845.5U Active CN212330534U (en) | 2020-07-16 | 2020-08-31 | Wall polisher with from dust collection structure |
| CN202010894045.3A Pending CN112192346A (en) | 2020-07-16 | 2020-08-31 | Wall polisher with from dust collection structure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010894045.3A Pending CN112192346A (en) | 2020-07-16 | 2020-08-31 | Wall polisher with from dust collection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115256090A (en) * | 2022-07-17 | 2022-11-01 | 王勇 | High-efficient production line of polishing of new energy automobile battery polar plate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116922223B (en) * | 2023-09-15 | 2023-11-24 | 江苏京成机械制造有限公司 | Trimming equipment is used in foundry goods production with collect dust function |
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2020
- 2020-08-31 CN CN202021860845.5U patent/CN212330534U/en active Active
- 2020-08-31 CN CN202010894045.3A patent/CN112192346A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115256090A (en) * | 2022-07-17 | 2022-11-01 | 王勇 | High-efficient production line of polishing of new energy automobile battery polar plate |
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