CN107363686B - Sheet-shaped angle grinder provided with abrasive dust absorption device - Google Patents
Sheet-shaped angle grinder provided with abrasive dust absorption device Download PDFInfo
- Publication number
- CN107363686B CN107363686B CN201710755731.0A CN201710755731A CN107363686B CN 107363686 B CN107363686 B CN 107363686B CN 201710755731 A CN201710755731 A CN 201710755731A CN 107363686 B CN107363686 B CN 107363686B
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- China
- Prior art keywords
- spiral channel
- protective cover
- absorption device
- plate
- channel
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Classifications
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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
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle 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
- 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
- B24B55/04—Protective covers for the grinding wheel
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
- B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines 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
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A sheet-shaped angle grinder with an abrasive dust absorption device comprises a grinder body, abrasive discs arranged on the grinder body, a protective cover and the abrasive dust absorption device, wherein the abrasive dust absorption device comprises a spiral channel, a containing bin and an air outlet channel, the spiral channel is a flat spiral channel formed by surrounding an upper arc plate, a lower arc plate, a left side flat plate and a right side flat plate, the tangential directions of the upper arc plate and the lower arc plate at the inlet of the spiral channel are consistent with those of the end surfaces of the two ends of a through hole of the protective cover, the containing bin is arranged at the outlet of the spiral channel, an arc-shaped extension baffle is further arranged at the outlet end of the spiral channel, one end of the extension baffle is fixedly connected with the lower arc plate of the spiral channel, the other end of the extension baffle extends towards the inside of the containing bin, the air outlet channel is fixedly arranged on the right side flat plate close to the outlet end of, such as dust and mars, are absorbed into the absorption device, thereby reducing the environmental pollution degree and protecting the health of operators.
Description
Technical Field
The invention relates to the technical field of angle grinders, in particular to a sheet-shaped angle grinder with an abrasive dust absorption device.
Background
In the mechanical industry, an angle grinder is often used for grinding the surfaces of welded structural parts such as joints, iron castings, steel castings and alloy parts so as to achieve better appearance. The angle grinder is at the in-process of polishing, and the abrasive disc of high-speed rotation rubs with the metal and produces abrasive dust (dust, mars), if do not sum up in addition, causes the pollution of environment easily, if operating personnel's labour protection measure does not wear to target in place, and the abrasive dust (dust, mars) touch operating personnel skin and will lead to skin burn to sting, gets into eyes and will harm eyeball and abrasive dust granule and hardly take out, and it is healthy to get into respiratory will seriously damage the internal organs.
Disclosure of Invention
There is a need for a plate-shaped angle grinder with an abrasive dust absorption device, which is designed integrally with the angle grinder, has a simple structure and a good absorption effect.
A sheet-shaped angle grinder provided with a grinding dust absorption device comprises a machine body, a grinding disc arranged on the machine body, a protective cover and a grinding dust absorption device, wherein the grinding disc rotates relative to the machine body at a high speed, the protective cover is semi-surrounded at the edge of the grinding disc, the protective cover is not contacted with the grinding disc, the grinding dust absorption device is fixedly connected with the protective cover, the grinding dust absorption device comprises a spiral channel, a containing bin and an air outlet channel, the spiral channel is a horizontal spiral channel formed by an upper arc plate, a lower arc plate, a left side plate and a right side plate, the left side plate and the right side plate are respectively in the same plane with two side plates of the protective cover, the left side plate and the right side plate are oppositely arranged, so that the width of an inlet of the spiral channel is the same as the width of the end face of the protective cover, the upper arc plate is arranged above the left side plate and the, the end face of the protective cover is provided with a through hole, the inlet of the spiral channel is communicated with the through hole on the end face of the protective cover, the tangential directions of the upper arc plate at the inlet of the spiral channel, the lower arc plate and the end faces at two ends of the through hole of the protective cover are consistent, the outlet of the spiral channel is provided with a containing bin, one end of the containing bin is communicated with the outlet of the spiral channel, the other end of the containing bin is provided with an opening, the opening end of the containing bin is provided with a movably connected plugging cover, the outlet end of the spiral channel is also provided with an arc-shaped extending baffle, one end of the extending baffle is fixedly connected with the lower arc plate of the spiral channel, the other end of the extending baffle extends towards the inside of the containing bin, the air outlet channel is fixedly arranged on a right side flat plate close to the outlet end of the spiral channel, the opening of the opening end of the air outlet channel is covered with the filter screen, and a hollow nut gland is movably connected with the opening end of the air outlet channel so as to fix the filter screen at the opening end of the air outlet channel.
The angle grinder absorbs abrasive dust, such as dust and sparks generated in the grinding process into the absorption device, so that the environmental pollution degree is reduced, and the health of operators is protected.
Drawings
Fig. 1 is a front view of a sheet-shaped angle grinder provided with an abrasive dust absorption device.
FIG. 2 is a schematic representation of the section lines identified in FIG. 1.
Fig. 3 is a right side view of a sheet-type angle grinder provided with an abrasive dust absorption device.
Fig. 4 is a cross-sectional view taken along a-a of fig. 2.
Fig. 5 is a partially enlarged view of the spiral passage.
In the figure: the grinding dust collecting device comprises a machine body 10, a grinding sheet 20, a protective cover 30, a grinding dust absorbing device 40, a spiral channel 41, an upper arc-shaped plate 411, a lower arc-shaped plate 412, a left side flat plate 413, a right side flat plate 414, a containing bin 42, a blocking cover 421, an extending baffle 422, an air outlet channel 43, an inclined side wall 431, a hollow nut 432 and a filter screen 433.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 5, an embodiment of the present invention provides a sheet type angle grinder provided with an abrasive dust absorption device, including a body 10, an abrasive disc 20 provided on the body 10, a protective cover 30, and an abrasive dust absorption device 40, wherein the abrasive disc 20 rotates at a high speed circumferentially relative to the body 10, the protective cover 30 is half-enclosed at the edge of the abrasive disc 20, the protective cover 30 is not in contact with the abrasive disc 20, the abrasive dust absorption device 40 is fixedly connected with the protective cover 30, the abrasive dust absorption device 40 includes a spiral channel 41, a containing bin 42, and an air outlet channel 43, the spiral channel 41 is a flat spiral channel 41 enclosed by an upper arc plate 411, a lower arc plate 412, a left side plate 413, and a right side plate 414, the left side plate 413 and the right side plate 414 are respectively in the same plane with two side plates of the protective cover 30, the left side plate 413 and the right side plate 414 are arranged opposite to each other so that the width of the entrance of, the upper arc plate 411 is arranged above the left side flat plate 413 and the right side flat plate 414, the lower arc plate 412 is arranged below the left side flat plate 413 and the right side flat plate 414, a through hole is arranged on the end surface of the protective cover 30, the inlet of the spiral channel 41 is communicated with the through hole on the end surface of the protective cover 30, the upper arc plate 411 and the lower arc plate 412 at the inlet of the spiral channel 41 are consistent with the tangential direction of the end surfaces at two ends of the through hole of the protective cover 30, the outlet of the spiral channel 41 is provided with the accommodating bin 42, one end of the accommodating bin 42 is communicated with the outlet of the spiral channel 41, the other end of the accommodating bin 42 is provided with an opening, the opening end of the accommodating bin 42 is provided with a movably connected blocking cover 421, the outlet end of the spiral channel 41 is also provided with an arc extension baffle 422, one end of the extension baffle 422 is fixedly connected with the lower arc plate, air outlet channel 43 is fixed on right side flat plate 414 near the outlet end of spiral channel 41, a through hole is provided on right side flat plate 414, one end of air outlet channel 43 is vertically connected with the through hole of right side flat plate 414, the other end of air outlet through hole is opened, filter screen 433 is covered at the opening of the opening end of air outlet channel 43, a hollow nut 432 is movably connected with the opening end of air outlet channel 43 by a pressing cover, so that filter screen 433 is fixed at the opening end of air outlet channel.
The inlet of the spiral channel 41 is horn-shaped, the absorption range of the abrasive dust is enlarged, the upper arc-shaped plate 411 and the lower arc-shaped plate 412 which are consistent with the tangential direction of the end surface of the protective cover 30 are equivalent to the fact that the tangential direction of the protective cover 30 is extended, when the abrasive dust is ground, the abrasive dust flies out along the tangential direction of the grinding disc 20, namely the direction is indicated by an arrow in the figure, and simultaneously flies into the protective cover 30 along the tangential direction of the protective cover 30, before the direction is changed by the blocking of the end part of the protective cover 30, the abrasive dust enters the inlet of the spiral channel 41 of the abrasive dust absorption device 40 along the tangential direction, then the direction is changed by the blocking of the upper arc-shaped plate 411 of the spiral channel 41, and enters the accommodating; the accommodating bin 42 is provided with an extending baffle 422 for preventing the entering grinding dust from flowing back to the spiral channel 41; still set up air outlet channel 43, in the spiral holds storehouse 42 is advanced gone into to the abrasive dust air current, the metal fillings weight is on the wrong side, can pile up in holding storehouse 42 bottom, and the air current gyration continues to surge towards air outlet channel 43 of top, and filter screen 433 can the filtering granule be great, the great metal fillings of proportion, only allows the gas outgoing.
The existing dust-absorbing angle grinder in the market is relatively complicated and is provided with a dust collector, an angle grinder and a hose. And the cost is high. By utilizing the negative pressure principle of the dust collector, the dust collector is connected with the angle grinder through a hose, and the dust collector is started to suck away dust generated by the angle grinder. The absorption device of the method has the advantages of simple manufacture, low cost and flexible and convenient operation, and no matter the angle grinder is used in multiple angles such as vertical use, horizontal use, lateral use and the like, the spiral channel 41 can help the abrasive dust to fall into the containing bin 42 freely, and the extending baffle 422 can prevent the abrasive dust from flowing back; when the collected abrasive dust needs to be cleaned, the plugging cover 421 is opened and slightly knocked, and the abrasive dust is discharged by gravity.
For those skilled in the art, the air outlet channel 43 above the accommodating bin 42 can be randomly placed, so long as it is ensured that the air outlet channel 43 does not interfere with the angle grinder body within the rotatable angle range of the abrasive dust absorption device 40, and other drawings can be obtained according to the drawings without creative labor.
Further, the air outlet channel 43 includes a constant diameter section and a neck expanding section, the neck expanding section is connected with the right side plate 414, the constant diameter section is connected with the neck expanding section, and the side wall of the neck expanding section close to the protection cover 30 is an inclined side wall 431, so that the opening caliber of the neck expanding section is larger than that of the constant diameter section.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (2)
1. A sheet-shaped angle grinder provided with an abrasive dust absorption device is characterized in that: comprises a machine body, a grinding disc arranged on the machine body, a protective cover and a grinding dust absorption device, wherein the grinding disc rotates relative to the machine body at a high speed circumference, the protective cover is semi-surrounded at the edge of the grinding disc, the protective cover is not contacted with the grinding disc, the grinding dust absorption device is fixedly connected with the protective cover, the grinding dust absorption device comprises a spiral channel, a containing bin and an air outlet channel, the spiral channel is a horizontal spiral channel formed by surrounding an upper arc plate, a lower arc plate, a left side plate and a right side plate, the left side plate and the right side plate are respectively in the same plane with two side plates of the protective cover, the left side plate and the right side plate are oppositely arranged, so that the width of an inlet of the spiral channel is the same as the width of the end surface of the protective cover, the upper arc plate is arranged above the left side plate and the right side plate, the lower arc, the inlet of the spiral channel is communicated with a through hole on the end face of the protective cover, the upper arc plate at the inlet of the spiral channel, the lower arc plate and the tangential direction of the end faces at the two ends of the through hole of the protective cover are consistent, a containing bin is arranged at the outlet of the spiral channel, one end of the containing bin is communicated with the outlet of the spiral channel, the other end of the containing bin is provided with an opening, a movably connected plugging cover is arranged at the opening end of the containing bin, an arc-shaped extending baffle is also arranged at the outlet end of the spiral channel, one end of the extending baffle is fixedly connected with the lower arc plate of the spiral channel, the other end of the extending baffle extends towards the inside of the containing bin, the air outlet channel is fixedly arranged on a right side flat plate close to the outlet end of the spiral channel, a through hole is formed in the right side flat plate, one end of the air, and a nut gland is movably connected with the opening end of the air outlet channel so as to fix the filter screen at the opening end of the air outlet channel.
2. A flake type angle grinder provided with an abrasive dust absorption device as set forth in claim 1, wherein: the air outlet channel comprises an equal-diameter section and a neck expanding section, the neck expanding section is connected with the right side flat plate, the equal-diameter section is connected with the neck expanding section, and the side wall of the neck expanding section close to the protective cover is an inclined side wall, so that the opening caliber of the neck expanding section is larger than that of the equal-diameter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755731.0A CN107363686B (en) | 2017-08-29 | 2017-08-29 | Sheet-shaped angle grinder provided with abrasive dust absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710755731.0A CN107363686B (en) | 2017-08-29 | 2017-08-29 | Sheet-shaped angle grinder provided with abrasive dust absorption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107363686A CN107363686A (en) | 2017-11-21 |
| CN107363686B true CN107363686B (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710755731.0A Active CN107363686B (en) | 2017-08-29 | 2017-08-29 | Sheet-shaped angle grinder provided with abrasive dust absorption device |
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| Country | Link |
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| CN (1) | CN107363686B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2604622A (en) * | 2021-03-10 | 2022-09-14 | Swisslogo Ag | A guard for a rotatable wheel of a power tool |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788712B (en) * | 2019-11-11 | 2020-10-13 | 浙江冠鑫科技股份有限公司 | Angle grinder capable of collecting sparks |
| CN112388469B (en) * | 2020-10-16 | 2021-11-23 | 永康市开源动力工具有限公司 | Angle grinder with safety protection structure |
| CN113714909A (en) * | 2021-09-08 | 2021-11-30 | 缙云县中美达工具有限公司 | Consolidate restoration with angle mill that has dustproof function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202011Y (en) * | 1994-07-23 | 1995-06-28 | 宁湘龙 | Dust collector of portable grinder |
| US6648742B1 (en) * | 2002-06-04 | 2003-11-18 | Theodore R. Segiel Jr. | Dust director portable vacuum guard |
| DE102004063542A1 (en) * | 2004-12-30 | 2006-07-13 | Robert Bosch Gmbh | Hand tool with a guide channel |
| CN100560293C (en) * | 2006-05-12 | 2009-11-18 | 环球石材（东莞）有限公司 | A kind of hand-driven electric grinder with automatic dust-collection function |
| CN202278498U (en) * | 2011-08-10 | 2012-06-20 | 台州美能环保设备有限公司 | Dust collector hood of big cloth wheel |
| CN204076024U (en) * | 2014-08-13 | 2015-01-07 | 济南金麒麟刹车***有限公司 | A kind of mill tapered emery-wheel dust collect plant |
| CN205342825U (en) * | 2016-01-14 | 2016-06-29 | 宁波元凯环保科技有限公司 | Burnishing machine suction hood |
| CN205765633U (en) * | 2016-06-01 | 2016-12-07 | 江西隆祥钢结构工程有限公司 | A kind of steel structure material polishing machine easy to use |
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2017
- 2017-08-29 CN CN201710755731.0A patent/CN107363686B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2604622A (en) * | 2021-03-10 | 2022-09-14 | Swisslogo Ag | A guard for a rotatable wheel of a power tool |
| WO2022189569A1 (en) * | 2021-03-10 | 2022-09-15 | Swisslogo Ag | A guard for a rotatable wheel of a power tool |
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| Publication number | Publication date |
|---|---|
| CN107363686A (en) | 2017-11-21 |
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