CN104275630A - Handheld sanding machine - Google Patents

Handheld sanding machine Download PDF

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Publication number
CN104275630A
CN104275630A CN201310293796.XA CN201310293796A CN104275630A CN 104275630 A CN104275630 A CN 104275630A CN 201310293796 A CN201310293796 A CN 201310293796A CN 104275630 A CN104275630 A CN 104275630A
Authority
CN
China
Prior art keywords
fan
fan blade
blade part
hand
driving shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310293796.XA
Other languages
Chinese (zh)
Inventor
陈仕波
陈治国
李华
李江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Priority to CN201310293796.XA priority Critical patent/CN104275630A/en
Priority to CN201910154128.6A priority patent/CN109773635A/en
Publication of CN104275630A publication Critical patent/CN104275630A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A handheld sanding machine comprises a machine body, a motor, a driving shaft, an eccentric shaft, a fastening piece, a fan and a bottom plate; the motor is accommodated in a machine shell and is connected through the first end of the driving shaft; the driving shaft can rotate around a first axis; a first surface and a second surface opposite to the first surface are arranged on the body of the fan; the second end of the driving shaft is combined with a mounting hole in the first surface of the fan; the eccentric shaft can rotate around a second axis; the first axis is parallel to the second axis; a first fan blade area provided with ordinary fan blade parts is arranged on the first surface of the fan, wherein the eccentric shaft is arranged on the second surface of the fan; a counterweight area is arranged on at least one of the first surface and the second surface of the fan. The handheld sanding machine can alleviate or eliminate whirling moment borne vibration and loading vibration when a flat-plate sanding machine operates on a working face, the manoeuverability of the flat-plate sanding machine is greatly improved, and the comfort degree when the flat-plate sanding machine is used by an operator and the sanding efficiency are improved.

Description

Hand-held sander
Technical field
The present invention relates to field of power tools, the especially a kind of hand-held sander woodwork such as floor, metope being carried out to polishing operation.
Background technology
Hand-held sander is commonly used milling tools as one and is widely used in all trades and professions.Spin moment and load oscillation phenomenon is mostly all there is, especially 1/2nd dull and stereotyped sand when most hand-held sander is polished on to be processed on the market.This phenomenon causes the handling variation of hand-held sander, and easily to a LRO Lateral Runout, and the long-time operator's wrist of hand-held sander that uses is easily tired.
Existing hand-held sander can improve load vibration by using the counterweight with overcome friction drift angle, but often adds the moment of spinning of hand-held sander.Do not have the counterweight of overcome friction drift angle can improve hand-held sander to spin phenomenon if used, but load vibration characteristics is bad.
Summary of the invention
For the defect that above-mentioned prior art exists, the invention provides and a kind ofly take into account the hand-held sander alleviating and spin with reducing load and vibrating simultaneously.
A kind of hand-held sander, comprises body, motor, driving shaft, eccentric shaft, securing member, fan and base plate; Motor is contained in casing, and be connected by the first end of driving shaft, driving shaft can rotate around first axle; The body of fan is provided with first surface and the second surface relative with first surface, and driving shaft second end combines with the installing hole on fan first surface, and eccentric shaft can rotate around the second axis, described first axle and the second axis being parallel; The first surface of described fan is provided with the first fan blade district of common fan blade part, and wherein said eccentric shaft is arranged on the second surface of fan, described fan first and second at least one of them is provided with weighted areas on the surface.
Nearly step ground, described weighted areas comprises the second weighted areas of the first weighted areas be arranged on the first surface of fan and the second surface being arranged on fan.
Nearly step ground, the counterweight of described first and second weighted areas is all the fan blade part of fan.
Nearly step ground, the thickness of the fan blade part of described first and second weighted areas is greater than the common fan blade part in the first and second fan blade districts.
Nearly step ground, described fan blade part is not all plane either bisects that first axle and the second axis form.
Nearly step ground, the fan blade part on second, described fan is smooth excessiveness face in conjunction with excessive face.
This balance weight structure can alleviate or eliminate the moment of spinning when hand-held sander runs on working face, significantly improves the navigability of dull and stereotyped sand.Meanwhile, this balance weight structure can alleviate hand-held sander load vibration, and increase operator uses comfort level during dull and stereotyped sand, too increases the sanding efficiency of dull and stereotyped sand.
 
Accompanying drawing explanation
Fig. 1 is the structural representation of the hand-held sander of embodiments of the present invention;
Fig. 2 is the fan structure schematic diagram of the hand-held sander of embodiments of the present invention;
Fig. 3 is another visual angle schematic diagram of Fig. 2;
Fig. 4 is the top view of Fig. 2;
Fig. 5 is the upward view of Fig. 2.
 
Detailed description of the invention
Be described in further detail below in conjunction with the hand-held sander of accompanying drawing to the specific embodiment of the present invention.
As shown in Figure 1, for flat sanding machine, this hand-held sander comprises body 1, motor 2, driving shaft 4, eccentric shaft 5, securing member 6, fan 7 and base plate 3.Motor 2 is contained in casing 1, is connected with the first end 41 of driving shaft 4, and driving shaft 4 can rotate around first axle 10.The body of fan 7 is provided with first surface 71 and the second surface 72 relative with first surface 71, driving shaft second end 42 combines with the installing hole 70 on fan 7 first surface, the second surface 72 of fan 7 is provided with eccentric shaft 5, eccentric shaft 5 rotates around the second axis 20, and wherein first axle 10 is parallel with the second axis 20.The invention provides three kinds of fans design, can both alleviate the load of hand-held sander vibration.
As shown in Figures 2 and 3, in present embodiment one, the first surface 71a of fan 7a is provided with the first fan blade district 73a, and fan blade district 73a is provided with the multiple common fan blade part 77a distributed radially, second surface 72a is provided with the second weighted areas 76a with balancing weight 79a.
As shown in Figures 4 and 5, in present embodiment two, the first surface 71b of fan 7b is provided with the first fan blade district 73b, fan blade district 73b has the multiple common fan blade part 77b distributed radially, the first surface of fan blade is provided with in addition the first weighted areas 74b with balancing weight 79b.The second surface 72b of fan 7b is provided with the second weighted areas 76b with balancing weight 79b, second surface 72b is also provided with the second fan blade district 75b, fan blade district 75b is provided with the multiple common fan blade part 77b distributed radially.
Common fan blade part 77b on fan 7b second 72b and counterweight fan blade part 78b and in conjunction with between excessive face 79b for seamlessly transitting, this excessive face is not right angle, be not easy like this heap laying dust bits.
As shown in Fig. 6 to 9, in present embodiment three, the first surface 71c of fan 7c is provided with the first fan blade district 73c, fan blade district 73c has the multiple common fan blade part 77c distributed radially, the first surface of fan blade is provided with in addition the first weighted areas 74c.First weighted areas 74c adopts multiple counterweight fan blade part 78c.The second surface 72c of fan 7c is provided with the second fan blade district 75c, and fan blade district 75c is provided with the multiple common fan blade part 77c distributed radially.The second surface 72c of fan 7c is also provided with the second weighted areas 76c, the second weighted areas 76c, adopts multiple counterweight fan blade part 78c.
In the present embodiment, wherein the thickness of counterweight fan blade part 78c is greater than common fan blade part 77c, and the thickness of multiple common fan blade part 77 is equal fan blade parts, the thickness of multiple counterweight fan blade part 78c can be designed to the equal or fan blade part not etc. of thickness according to actual needs.
Multiple common fan blade part 77c forms the first fan blade district 73c and the second fan blade district 75c respectively according to some distributions, multiple counterweight fan blade part 78c constitutes the first weighted areas 74c and the second weighted areas 76c according to some distributions, and the counterweight fan blade part 78c wherein forming first, second weighted areas 76c formation is not all plane either bisects that first axle 10 and the second axis 20 form.
Identical with embodiment two, the common fan blade part 77c on fan 7c second 72c and counterweight fan blade part 78c and in conjunction with between excessive face 79c for seamlessly transitting, this excessive face is not right angle, be not easy like this heap laying dust bits.
The present invention is by transforming the fan of hand-held sander, namely fan is integrated with eccentric shaft, utilizes fan blade part and independent balancing weight to combine, or counterweight is distributed in counterweight fan blade part, form the first weighted areas and the second weighted areas, thus achieve the function of counterweight.
Thus do not need additionally to increase major-minor counterweight part in hand-held sander in the present invention, this form structure is simple, easy to assembly, with low cost, and can go according to working condition or machine performance the distribution or the shape that set fan blade part, thus obtain best balance numerical value, and then spin moment and the vibration of flat sanding machine can be made all to obtain improve largely.
Above-described embodiment is for flat sanding machine, but the present invention is not limited on this product, and the present invention also can be applicable on other sanders needing balance, such as triangle sand.

Claims (6)

1. a hand-held sander, comprises body, motor, driving shaft, eccentric shaft, securing member, fan and base plate; Motor is contained in casing, and be connected by the first end of driving shaft, driving shaft can rotate around first axle; The body of fan is provided with first surface and the second surface relative with first surface, and driving shaft second end combines with the installing hole on fan first surface, and eccentric shaft can rotate around the second axis, described first axle and the second axis being parallel; The first surface of described fan is provided with the first fan blade district of common fan blade part, it is characterized in that: described eccentric shaft is arranged on the second surface of fan, described fan first and second at least one of them is provided with weighted areas on the surface.
2. hand-held sander according to claim 1, is characterized in that: described weighted areas comprises the second weighted areas of the first weighted areas be arranged on the first surface of fan and the second surface being arranged on fan.
3. hand-held sander according to claim 2, is characterized in that: the counterweight of described first and second weighted areas is all the fan blade part of fan.
4. hand-held sander according to claim 3, is characterized in that: the thickness of the fan blade part of described first and second weighted areas is greater than the common fan blade part in the first and second fan blade districts.
5. hand-held sander according to claim 3, is characterized in that: described fan blade part is not all plane either bisects that first axle and the second axis form.
6. hand-held sander according to claim 3, is characterized in that: the second surface of the fan blade part on described fan second surface and fan is smooth excessiveness face in conjunction with excessive face.
CN201310293796.XA 2013-07-12 2013-07-12 Handheld sanding machine Pending CN104275630A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310293796.XA CN104275630A (en) 2013-07-12 2013-07-12 Handheld sanding machine
CN201910154128.6A CN109773635A (en) 2013-07-12 2013-07-12 Hand-held sander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310293796.XA CN104275630A (en) 2013-07-12 2013-07-12 Handheld sanding machine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201910154128.6A Division CN109773635A (en) 2013-07-12 2013-07-12 Hand-held sander

Publications (1)

Publication Number Publication Date
CN104275630A true CN104275630A (en) 2015-01-14

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN201310293796.XA Pending CN104275630A (en) 2013-07-12 2013-07-12 Handheld sanding machine
CN201910154128.6A Pending CN109773635A (en) 2013-07-12 2013-07-12 Hand-held sander

Family Applications After (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106625140A (en) * 2015-10-29 2017-05-10 南京德朔实业有限公司 Sanding machine
CN110142672A (en) * 2018-02-11 2019-08-20 南京德朔实业有限公司 A kind of milling tools
CN110270930A (en) * 2019-07-11 2019-09-24 浙江承康机电制造有限公司 A kind of polishing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230017671A1 (en) * 2021-07-14 2023-01-19 Milwaukee Electric Tool Corporation Quarter sheet sander

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CN203471502U (en) * 2013-07-12 2014-03-12 南京德朔实业有限公司 Handheld sanding machine

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EP1285727A1 (en) * 2001-08-10 2003-02-26 Techtronic Industries Co., Ltd. Orbital sander with a high speed permanent DC motor and a freely rotatable sanding plate
CN1666036A (en) * 2002-05-14 2005-09-07 Skf自动平衡系统股份公司 System and method for automatically compensating for unbalanced resistance forces
CN201579686U (en) * 2008-08-20 2010-09-15 布莱克和戴克公司 Tool for moving abrasive medium
TW201300197A (en) * 2011-06-28 2013-01-01 X Pole Prec Tools Inc Machine tool with intersecting gas flows in two directions
CN203471502U (en) * 2013-07-12 2014-03-12 南京德朔实业有限公司 Handheld sanding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106625140A (en) * 2015-10-29 2017-05-10 南京德朔实业有限公司 Sanding machine
CN110142672A (en) * 2018-02-11 2019-08-20 南京德朔实业有限公司 A kind of milling tools
CN110142672B (en) * 2018-02-11 2022-11-15 南京泉峰科技有限公司 Polishing tool
CN110270930A (en) * 2019-07-11 2019-09-24 浙江承康机电制造有限公司 A kind of polishing machine

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Application publication date: 20150114

RJ01 Rejection of invention patent application after publication