CN102909625A - Grinding machine - Google Patents

Grinding machine Download PDF

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Publication number
CN102909625A
CN102909625A CN2012104112219A CN201210411221A CN102909625A CN 102909625 A CN102909625 A CN 102909625A CN 2012104112219 A CN2012104112219 A CN 2012104112219A CN 201210411221 A CN201210411221 A CN 201210411221A CN 102909625 A CN102909625 A CN 102909625A
Authority
CN
China
Prior art keywords
planetary mechanism
output shaft
gear
planetary
motor assembly
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
CN2012104112219A
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Chinese (zh)
Inventor
邓斌
傅小平
蔡静
彭文忠
程福强
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.)
Cceg Second Construction Co Ltd
Original Assignee
Cceg Second Construction 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 Cceg Second Construction Co Ltd filed Critical Cceg Second Construction Co Ltd
Priority to CN2012104112219A priority Critical patent/CN102909625A/en
Publication of CN102909625A publication Critical patent/CN102909625A/en
Pending legal-status Critical Current

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Abstract

The invention relates to building decoration equipment, in particular to a building wall surface grinding machine. The grinding machine comprises a sand grinder and a dust collector, wherein the sand grinder comprises a grinding disc assembly and a motor assembly which are arranged in sequence; and the dust collector is communicated with the grinding disc assembly. The grinding machine is characterized in that the grinding disc assembly comprises an elastic grinding disc arranged at the front end; a planetary mechanism is also arranged between the grinding disc assembly and the motor assembly; the planetary mechanism is connected with the elastic grinding disc through an output shaft; the motor assembly is connected with the planetary mechanism through a motor output shaft; and the dust collector adopts an independent fan to collect dust. The building wall surface grinding machine is compact in structure, small in volume and light in weight, and can effectively improve the operation efficiency and the grinding quality.

Description

Sander
Technical field
The present invention relates to a kind of construction and decoration equipment, be specifically related to a kind of building wall sander.
Background technology
The polishing putty layer is one critical process that building wall sprays paint or mopping is front, and whether metope is smooth attractive in appearance, depends on to a great extent the polishing quality.Most traditional-handwork polishing metopes that adopt in the construction and decoration, i.e. hand-held sand polishing.Not only efficient is low for traditional-handwork polishing metope, and application workman dust when the polishing metope flies upward, and can work the mischief to its health.Dust is diffused into atmosphere during the polishing metope, and surrounding environment is also caused severe contamination.In addition, because workman's technical merit is uneven, the manual grinding mass discrepancy is very large.At present; although the wall electromechanical grinding apparatus is used to some extent; but general dynamo-electric grinding apparatus often exists, and volume is large, Heavy Weight, be not easy to the drawback such as operation; therefore; be badly in need of the wall electromechanical grinding apparatus of little, the lightweight and environmental protection of a kind of volume, this is for ensureing that workers ' health, protection of the environment, raising operating efficiency and polishing quality are all significant.
Summary of the invention
The technical problem to be solved in the present invention provides the building wall sander of a kind of compact conformation, lightweight, convenient operation and environmental protection.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of sander comprises skin grinder and vacuum cleaner, and skin grinder comprises mill assembly and the motor assembly that sets gradually, and vacuum cleaner is connected with the mill assembly, it is characterized in that: mill assembly front end is provided with Circular back-plate for carrying flexible abrasive material.Because Circular back-plate for carrying flexible abrasive material the time can produce elastic buffer power in polishing, so the vibration that produces can effectively alleviate polishing time of this design, make more comfortable, the safety of operation.
Further, described Circular back-plate for carrying flexible abrasive material comprises circular floppy disk, vinyl disc, sand sheet, sticky pad and steel seat, sticky pad is attached to a side panel face of floppy disk, the sand sheet sticks on the sticky pad, vinyl disc is arranged on the opposite side card of floppy disk, offer hole on the vinyl disc, the steel seat is arranged on floppy disk and vinyl disc card centre position, and the steel seat connects described floppy disk and vinyl disc.
Further, also be provided with planetary mechanism between described mill assembly and motor assembly, planetary mechanism comprises output shaft, and this output shaft is connected with the steel seat of Circular back-plate for carrying flexible abrasive material, and motor assembly links to each other with planetary mechanism by motor output shaft.Described planetary mechanism also comprises internal gear, planetary gear and central gear, internal gear is fixedly mounted in the body shell, central gear is coaxial to be installed on the power shaft of planetary mechanism and to go deep into the central authorities of internal gear, planetary gear has identical two of size, and circumferentially symmetrical and be engaged between central gear and the internal gear along central gear; Each planetary gear all is connected with planet carrier by bearing pin, and planet carrier links to each other with the output shaft of planetary mechanism, is provided with needle bearing between planetary gear and bearing pin; Planetary mechanism output shaft front end is fixed by clutch shaft bearing, and planetary mechanism output shaft rear end is fixed by the second bearing.
Further, be outside equipped with the resistance dust hood at described Circular back-plate for carrying flexible abrasive material.Resistance dust hood and metope form a confined space, make this space form certain negative pressure by air exhauster, utilize the passage aisle that forms between resistance dust hood and the metope to enter this space by outside air, stop the dust diffusion, and dust is siphoned away by the sweep-up pipe that connects; And the resistance dust hood is the datum plane of sand sheet polishing, with the contact-making surface of resistance dust hood and metope be designed to the sand sheet at grade, the place mistake that can avoid the sand sheet need not polish is polished or is caused polishing excessively, thereby makes the bold relieved polishing of operating personnel, greatly improves polishing quality and efficient.
Further, radially be provided with handle in the peripheral surface of described motor assembly, this handle and motor assembly form singlehanded T shape hand held structures.The active force of hand is mainly sander weight, promotes sander at the mobile resistance of metope and applies the reaction force of pressure on the wall, and in order to alleviate operating physical force, handle should be near the sander centroid position, the opplied moment centered by wrist etc. that reduces that sander forms, singlehanded T shape hand held structures can fine maintenance polishing sand and the parallel relation of metope, thus structural design more reasonable, be more convenient for operating.
Further, vacuum cleaner adopts independent blower fan dust suction.Adopt independent dust suction mode, the blower fan of configuration can have high rotating speed, major diameter blade and the major diameter sweep-up pipe of driving separately, therefore can produce larger vacuum and flow, reach good pick-up performance, and can alleviate sander weight, raising operation comfort.
Further, described motor assembly comprises motor, and described motor is the individual event series machine.The individual event series machine has rotating speed height, volume is little, starting torque is large, overload power is strong and soft torque-speed characteristic, but the Effective Raise grinding efficiency.
Beneficial effect of the present invention: 1, the design of round and elastic mill polishing, have the quality of polishing preferably, its instrument is lighter, during polishing vibrations little, easy to operate, be convenient to simultaneously be used with vacuum cleaner; 2, the present invention is provided with planetary mechanism between mill assembly and motor assembly, because Planetary Gear Transmission has power dividing and each centre wheel consists of the transmission of coaxial line formula and reasonably uses internal gear pair, therefore can make skin grinder compact conformation, volume little, lightweight.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention sander;
Fig. 2 is embodiment of the invention Circular back-plate for carrying flexible abrasive material structural representation;
Fig. 3 is embodiment of the invention mill assembly structure schematic diagram;
Fig. 4 is embodiment of the invention planetary mechanism central gear and planet gear transmission schematic diagram;
Fig. 5 is the structural representation of planetary mechanism of the present invention.
The specific embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, the present embodiment sander comprises skin grinder and vacuum cleaner, and skin grinder comprises mill assembly 1, planetary mechanism 2 and the motor assembly 3 that sets gradually.Motor assembly links to each other with planetary mechanism by motor output shaft, planetary mechanism links to each other with the mill assembly by the output shaft of planetary mechanism, vacuum cleaner is connected by sweep-up pipe 5 with mill assembly 1, peripheral surface at motor assembly 3 radially is provided with handle 4, and this handle 4 forms singlehanded T shape hand held structures with motor assembly 3.
Vacuum cleaner of the present invention adopts free-standing blower fan dust suction.Because free-standing blower fan is prior art, so not shown its structure in the present embodiment accompanying drawing, its mechanism also repeats no more at this.Because free-standing blower fan dust suction is to utilize separately an air exhauster to carry out ventilation and dust removal, the blower fan of configuration can have high rotating speed, major diameter blade and the major diameter sweep-up pipe of driving separately, therefore can produce larger vacuum and flow, reaches good pick-up performance.
The mill assembly comprises Circular back-plate for carrying flexible abrasive material, is arranged on the resistance dust hood 16 of Circular back-plate for carrying flexible abrasive material periphery as shown in Figure 3.The resistance dust hood has two effects, the one, utilize it and metope to form a confined space, make this space form certain negative pressure by air exhauster, utilize the passage aisle that forms between resistance dust hood and the metope to enter this space by outside air, stop the dust diffusion, and dust is siphoned away by the sweep-up pipe that connects; The 2nd, the resistance dust hood is the datum plane of sand sheet polishing, with the contact-making surface of resistance dust hood and metope be designed to the sand sheet at grade, the place mistake that can avoid the sand sheet need not polish is polished or is caused polishing excessively, thereby makes the bold relieved polishing of operating personnel, greatly improves polishing quality and efficient.
Vibration transmittance process based on sander is analyzed, and vibration is to be delivered to driving shaft from mill, is delivered to hand again, therefore, adopts Circular back-plate for carrying flexible abrasive material to reduce vibration.The Circular back-plate for carrying flexible abrasive material structure as shown in Figure 2, comprise diskette 11, vinyl disc 12, sand sheet 13, sticky pad 14 and steel seat 15, sticky pad 14 is attached to diskette 11 one side panel faces, sand sheet 13 sticks on the sticky pad 14, vinyl disc 12 is arranged on the diskette 11 opposite side card, offer hole on the vinyl disc 12, steel seat 15 is arranged on diskette 11 and vinyl disc 12 card centre positions, connects described diskette 11 and vinyl disc 12; The output shaft 29 of planetary mechanism wears into steel seat 15, is fixedly connected with the steel seat by bolt 17, holds a circle packing ring 18 in output shaft 29 peripheries of planetary mechanism, packing ring 18 peripheral hardware nuts.Wherein floppy disk and vinyl disc all are that elastomeric material, especially floppy disk have stronger damping capacity.The sand sheet is made by sand, and it is sticked on the sticky pad and can polish.Floppy disk is made by sponge, and it has two effects: the one, and sponge has good absorbing performance, effectively vibration damping; The 2nd, it will strain under low-force, and it is excessive and make motor overload to prevent from acting on pressure on the rotating disk when the metope out-of-flatness discrepancy in elevation is larger.Vinyl disc is used for connecting floppy disk and steel seat.
The planetary mechanism design is as follows:
The torque T that present embodiment planetary mechanism output shaft bears is designed to:
Wherein: F is the pressure (N) that acts on the mill;
F is the grinding coefficient;
Be mill equivalent redius (m).
Planetary mechanism adopts the 2K-H type, and two planetary gears are set.The theoretical idler revolutions of design mill are 2100r/min, and the speed reducing ratio i that planetary mechanism needs is
The modulus of design planetary gear is 0.8, and the number of teeth is 28, and the facewidth is 8mm, and addendum coefficient is 1, and the radial clearance coefficient is 0.25, and modification coefficient is-0.375.
Design internal gear modulus is 0.8, and the number of teeth is 62, and the facewidth is 12mm, and addendum coefficient is 1, and the radial clearance coefficient is 0.25, and modification coefficient is-1.25.
The actual deceleration of the planetary mechanism of design than i is
The planetary mechanism of design satisfies concentric condition:
The planetary mechanism of design satisfies assembled condition:
Therefore two planetary gears that arrange must satisfy neighbor for being arranged symmetrically with.
As shown in Figure 4, be planetary mechanism central gear and planetary gear transmission mechanism schematic diagram, Z 1And Z 2Be two planetary gears, Z 1With Z 2Between be central gear, Z 3Be internal gear, central gear links to each other with the planetary mechanism power shaft is coaxial, and the output shaft 31 of motor links to each other Z in the power shaft of planetary mechanism and the motor assembly 1And Z 2Be equipped with the output shaft that output shaft 29(is planet mechanism).
As shown in Figure 5, be planetary mechanism concrete structure schematic diagram, comprise that mainly the output shaft 29 that links to each other with Circular back-plate for carrying flexible abrasive material, symmetrically arranged two planetary gears 212, central gear 211 and internal gear 213 consist of planetary gear transmission mechanism.In the present embodiment, the planetary mechanism shell comprises the first shell 26 and the second housing 27 that is connected by pin 28 with the first shell 26, in the first shell 26, output shaft 29 front ends of planetary mechanism are fixing by the clutch shaft bearing 241 that is fixedly mounted in the body, the outside of clutch shaft bearing 241 is end cap 25, the inboard of clutch shaft bearing 241 is location-plate, location-plate is inboard for being fixedly mounted on the internal gear 213 in the body, planetary gear 212 and central gear 211, the central gear 211 coaxial central authorities that are installed on the planetary mechanism power shaft and are installed in internal gear 213, the power shaft of planetary mechanism is connected with motor output shaft 31, planetary gear 212 has identical two of size, and circumferentially symmetrical and be engaged between central gear 211 and the internal gear 213 along central gear 211, because two planetary gear sizes are identical, therefore, central gear 211 is coaxial with internal gear 213, each planetary gear 212 all is installed on the planet carrier by bearing pin 22, planet carrier links to each other with the output shaft 29 of planetary mechanism, is provided with needle bearing 23 between planetary gear 212 and bearing pin 22; In second housing 27, output shaft 29 rear ends of planetary mechanism are further fixing by the second bearing 242, and the inboard of the second bearing 242 further arranges the 3rd bearing 243 fixing whole planetary mechanisms.The front end of the output shaft 29 of planetary mechanism is provided with step, is used for installing the Circular back-plate for carrying flexible abrasive material of mill assembly.
Motor assembly 3 of the present invention is selected the P1B-DV-12C motor assembly for apolegamy, and power input to machine is 300W, idler revolutions are 24000r/min, and the generator shaft gear modulus is 0.8, and the number of teeth is 6, modification coefficient is 0.375, and gear maximum functional license moment of torsion was 7 when the facewidth was 8mm The motor shaft of this motor assembly and the facewidth are that planetary gear when engagement maximum functional license moment of torsion of 8mm is 7 , much larger than moment of torsion (T=0.96 that the planetary mechanism output shaft bears ), therefore, do not need to carry out again the strength of gear teeth and check.
Motor in the described motor assembly 3 is the individual event series machine.The individual event series machine has rotating speed height, volume is little, starting torque is large, overload power is strong and soft torque-speed characteristic, encourages motor under the output identical power conditions, and rotating speed is higher, and weight is lighter, therefore, selects pot motor for alleviating weight of equipment.In the meticulousr polishing constructions such as polishing building wall face putty layer, require the working speed of sanding disc lower (polishing wall surface putty layer requires sanding disc rotational line speed about 1m/s), therefore the larger reducing gear of speed reducing ratio need to be set between motor output shaft and sanding disc.The sand mill that is used for meticulousr polishing construction in the prior art adopts the two-stage straight-tooth gear to slow down usually, to improve speed reducing ratio; But such sand mill Heavy Weight, volume are large, and operation is used very inconvenient.Because Planetary Gear Transmission has power dividing and each centre wheel consists of the transmission of coaxial line formula and reasonably uses internal gear pair, therefore can make its compact conformation, volume is little and lightweight.The efficient of Planetary Gear Transmission is also high in addition.Therefore, adopt planetary gear speed reducing mechanism can make the skin grinder compact conformation, volume is little and lightweight.
To sum up, sander of the present invention has adopted free-standing blower fan dust suction, Circular back-plate for carrying flexible abrasive material polishing, singlehanded T shape hand-held, planetary mechanism transmission and series machine to drive.Sander structure of the present invention is compact, volume is little, lightweight, and the polishing pick-up performance is good, the operation comfort and convenient.Test shows that sander polishing of the present invention is respond well, and dust-absorbing rate is up to 98.5%, for ensureing that workers ' health, protection of the environment, raising operating efficiency and polishing quality are significant.
Above-described only is preferred embodiment of the present invention, should be understood that for a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement, these can not affect effect of the present invention and practical applicability.

Claims (8)

1. a sander comprises skin grinder and vacuum cleaner, and skin grinder comprises mill assembly and the motor assembly that sets gradually, and vacuum cleaner is connected with the mill assembly, it is characterized in that: mill assembly front end is provided with Circular back-plate for carrying flexible abrasive material.
2. sander according to claim 1, it is characterized in that: described Circular back-plate for carrying flexible abrasive material comprises circular floppy disk, vinyl disc, sand sheet, sticky pad and steel seat, sticky pad is attached to a side panel face of floppy disk, the sand sheet sticks on the sticky pad, vinyl disc is arranged on the opposite side card of floppy disk, offer hole on the vinyl disc, the steel seat is arranged on floppy disk and vinyl disc card centre position, and the steel seat connects described floppy disk and vinyl disc.
3. sander according to claim 1, it is characterized in that: between described mill assembly and motor assembly, also be provided with planetary mechanism, planetary mechanism comprises output shaft, and this output shaft is connected with the steel seat of Circular back-plate for carrying flexible abrasive material, and motor assembly links to each other with planetary mechanism by motor output shaft.
4. sander according to claim 3, it is characterized in that: described planetary mechanism also comprises internal gear, planetary gear and central gear, internal gear is fixedly mounted in the body shell, central gear is coaxial to be installed on the power shaft of planetary mechanism and to go deep into the central authorities of internal gear, planetary gear has identical two of size, and circumferentially symmetrical and be engaged between central gear and the internal gear along central gear; Each planetary gear all is connected with planet carrier by bearing pin, and planet carrier links to each other with the output shaft of planetary mechanism, is provided with needle bearing between planetary gear and bearing pin; Planetary mechanism output shaft front end is fixed by clutch shaft bearing, and planetary mechanism output shaft rear end is fixed by the second bearing.
5. sander according to claim 2, it is characterized in that: described Circular back-plate for carrying flexible abrasive material is outside equipped with the resistance dust hood.
6. sander according to claim 1, it is characterized in that: the peripheral surface at described motor assembly radially is provided with handle, and this handle and motor assembly form singlehanded T shape hand held structures.
7. sander according to claim 1, it is characterized in that: vacuum cleaner adopts independent blower fan dust suction.
8. sander according to claim 1, it is characterized in that: the motor in the motor assembly is the individual event series machine.
CN2012104112219A 2012-10-25 2012-10-25 Grinding machine Pending CN102909625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104112219A CN102909625A (en) 2012-10-25 2012-10-25 Grinding machine

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Application Number Priority Date Filing Date Title
CN2012104112219A CN102909625A (en) 2012-10-25 2012-10-25 Grinding machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289989A (en) * 2014-10-31 2015-01-21 浙江丽佳建筑装饰工程有限公司 Multifunctional building wall face polishing device
CN104526488A (en) * 2015-01-06 2015-04-22 江苏中茂工艺品制造有限公司 Polishing disc device of wall polisher
CN108274319A (en) * 2017-12-14 2018-07-13 安徽瀚景观规划设计院有限公司 A kind of wall surface grinding device and its method of construction and decoration
CN108453596A (en) * 2018-05-04 2018-08-28 芜湖众梦电子科技有限公司 A kind of polishing machine of 3D printing product

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237781A (en) * 1992-03-23 1993-08-24 Kris Demetrius Hand held disc type surfacing machine
CN2192434Y (en) * 1994-04-30 1995-03-22 黄晋龙 Disk sand polishing machine plastic grinding board
CN202185797U (en) * 2011-07-20 2012-04-11 林健明 Polishing device of dust-absorbing type sander
CN202209039U (en) * 2011-09-16 2012-05-02 重庆建工第二建设有限公司 Sand mill
CN202240758U (en) * 2011-09-05 2012-05-30 夏啸洪 Self-duct collection wall surface polishing machine
CN102554726A (en) * 2011-12-29 2012-07-11 应浩梁 Bidirectional polishing and grinding machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237781A (en) * 1992-03-23 1993-08-24 Kris Demetrius Hand held disc type surfacing machine
CN2192434Y (en) * 1994-04-30 1995-03-22 黄晋龙 Disk sand polishing machine plastic grinding board
CN202185797U (en) * 2011-07-20 2012-04-11 林健明 Polishing device of dust-absorbing type sander
CN202240758U (en) * 2011-09-05 2012-05-30 夏啸洪 Self-duct collection wall surface polishing machine
CN202209039U (en) * 2011-09-16 2012-05-02 重庆建工第二建设有限公司 Sand mill
CN102554726A (en) * 2011-12-29 2012-07-11 应浩梁 Bidirectional polishing and grinding machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289989A (en) * 2014-10-31 2015-01-21 浙江丽佳建筑装饰工程有限公司 Multifunctional building wall face polishing device
CN104526488A (en) * 2015-01-06 2015-04-22 江苏中茂工艺品制造有限公司 Polishing disc device of wall polisher
CN108274319A (en) * 2017-12-14 2018-07-13 安徽瀚景观规划设计院有限公司 A kind of wall surface grinding device and its method of construction and decoration
CN108453596A (en) * 2018-05-04 2018-08-28 芜湖众梦电子科技有限公司 A kind of polishing machine of 3D printing product
CN108453596B (en) * 2018-05-04 2020-03-20 亳州易泽信息科技有限公司 Polishing machine for 3D printed products

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Application publication date: 20130206