CN102577738A - Hand-held cutter - Google Patents
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- CN102577738A CN102577738A CN2011100084836A CN201110008483A CN102577738A CN 102577738 A CN102577738 A CN 102577738A CN 2011100084836 A CN2011100084836 A CN 2011100084836A CN 201110008483 A CN201110008483 A CN 201110008483A CN 102577738 A CN102577738 A CN 102577738A
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Abstract
The invention discloses a hand-held cutter. The cutter comprises an operating rod, a working assembly arranged at one end of the operating rod, a motor for driving the working assembly, and a transmission mechanism arranged between the motor and the working assembly, wherein the motor is arranged close to the working assembly. The working assembly comprises an upper saw bit and a lower saw bit in pairs which are arranged coaxially and have opposite rotation directions. The rotary speed of the motor is transmitted to the saw bits by the transmission mechanism. The speed ratio of the motor to the saw bits is between 30:1 and 60:1. The motor outputs a high rotary speed while the upper and lower saw bits output a low rotary speed. According to the invention, the saw bits of the hand-held cutter work under safe conditions and the hand-held cutter is high in cutting efficiency and low in electricity consumption.
Description
Technical field
The present invention relates to a kind of handheld tool, especially a kind of electronic cutter with double saw bits.
Background technology
Common hand held cutting tool such as mower, trimmer on the market; Generally adopt nylon wire alternative metals blade to be used for cutting is repaired on the lawn, that the line of cut of processing owing to nylon or other material has is in light weight, change easily that characteristics are widely used on this type cutting tool.But,, therefore when hand-held, often have the defective that vibration is big, noise is high because this type cutting tool need be exported the higher rotation speed line of cut and could carry out cutting work; Simultaneously because the running up of working head, when the line of beating the grass is run into the object such as handstone on ground, can splash out and influence operator or other people safety.
The patent application that day disclosure designation spy opens 2010-63452 discloses a kind of hand-held cutting machine that utilizes the metal saw blade as cut workpiece; The action bars of this cutting machine is provided with joystick; Engine is arranged at an end of action bars; The metal circular saw of a pair of upper and lower setting is arranged at the other end away from engine; Be provided with the driving shaft of delivery engine power in the action bars; The transmission speed reducer structure is set between cutting work and the driving shaft is used for rotary power with driving shaft and passes to saw blade and saw blade down respectively, last saw blade and the rotation in opposite direction and the rotary speed of saw blade is relatively low down, the cutter tooth of saw blade formed scissor cutting under last saw blade reached in the rotary course of upper and lower saw blade.
Engine cutting function makes things convenient for cutting operations such as the user for example mows out of doors, pruning; But because the waste gas that engine fuel burning back produces in its course of work can produce pollution to environment; The noise that produces is all bigger with vibration; And the weight of engine cutting machine self weighs more than 20% than the cutting machine that adopts direct current or alternating current, and the operator works long hours and is very easy to produce fatigue; Therefore be necessary existing hand electric cutter with double saw bits is improved.
Summary of the invention
To the deficiency that prior art exists, the technical problem that the present invention will solve provides the hand-held cutter with double saw bits of a kind of cutting efficiency height and handling safety.
For solving the problems of the technologies described above; Technical scheme of the present invention is achieved in that a kind of hand-held cutting machine, comprises action bars, is arranged at the work package of action bars one end; Drive the motor of work package; Said motor is arranged at the transmission mechanism between motor and the work package near the work package setting, and said work package comprises a pair of coaxial setting and the opposite saw blade of direction of rotation; Said motor pass through transmission mechanism will rotate output be passed to saw blade, the speed ratio of said motor and saw blade is between 30: 1 to 60: 1.
The no-load speed of said motor is between 12000rpm to 36000rpm.The no-load speed of said saw blade is between 200rpm to 600rpm.
Preferably, the speed ratio of said motor and saw blade is between 45: 1 and 55: 1.
Preferably, said motor is a direct current generator.The no-load speed of said saw blade is between 200rpm to 450rpm.Said hand-held cutting machine further is included as the power brick that the motor rotation provides energy, and said power brick is arranged at the other end of relative work package on the action bars.
Preferably, said motor is an alternating current generator.The no-load speed of said saw blade is between 300rpm to 600rpm.Said hand-held cutting machine is provided with electric power connection line.
Said saw blade comprises circular base and is located at a plurality of cutters tooth of said matrix outer rim that the blade of said cutter tooth is provided with along the circumferential the same side of said saw blade.It is up-narrow and down-wide trapezoidal that said cutter tooth profile is.First saw blade and second saw blade of said saw blade are equipped with a plurality of perforates, and said bore size and position are corresponding respectively.
Said transmission mechanism comprises first power train that drives the rotation of second saw blade and second power train that drives the rotation of second saw blade, and the rotating speed of said first saw blade is different from the rotating speed of second saw blade.
Said transmission mechanism comprises first deceleration device and second deceleration device, and first deceleration device is the planetary gear train, and said planetary gear train comprises the first planetary gear wheels of motor pinion at least.The said first planetary gear wheels comprise first centre wheel; A plurality of first planetary gears with the engagement of first centre wheel; Support first planet carrier of said first planetary gear, be arranged at the first peripheral ring gear of first planet carrier, the internal tooth engagement of said first planetary gear and first ring gear; Said motor pinion is served as first centre wheel, and the rotating tee of said motor pinion is crossed first output shaft that first planetary gear is passed to first planet carrier.
Said first bevel gear system comprises and second bevel gear of first bevel gear engagement that said second bevel gear system comprises said first bevel gear, and with the third hand tap gear of first bevel gear engagement, the coaxial setting of said second, third bevel gear.: said second bevel gear fixedly is coupled to said motor output shaft, said third hand tap geared sleeve be located at said motor output shaft and with said motor output shaft matched in clearance.
Said second deceleration device comprises the roller gear system that connects with first deceleration device and be used to drive first, second saw blade rotation.Said roller gear is to comprise first roller gear system and second roller gear system, and said first roller gear is to be used to drive the rotation of first saw blade, and said second roller gear is to be used to drive the second saw blade reverse rotation.
Said action bars comprises upper connecting rod and lower connecting rod, and the relative lower connecting rod of upper connecting rod can be along its longitudinally slidable adjustment, and through locking element the relative position of upper connecting rod and lower connecting rod is locked.
Preferably, the axis of said motor is consistent with the bearing of trend of action bars, and is the acute angle setting with said saw blade applying plane.
Preferably, the axis of said motor and said saw blade applying plane are perpendicular.
Beneficial effect of the present invention: cutting efficiency height and handling safety, light and handy, noise is low and it is little to vibrate.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is a hand-held cutting machine schematic perspective view in the embodiment of the present invention.
Fig. 2 is a hand-held cutting machine broken section enlarged diagram in the embodiment of the present invention.
Fig. 3 is the three-dimensional exploded view of first deceleration device among Fig. 2.
Fig. 4 is a saw blade vertical view on the hand-held cutting machine in the embodiment of the present invention.
Fig. 5 is a saw blade vertical view under the hand-held cutting machine of the present invention.
Fig. 6 is the schematic perspective view of another specific embodiment of the present invention.
Fig. 7 is a hand-held cutting machine broken section enlarged diagram among Fig. 6.
Fig. 8 is the schematic perspective view of the gear drive among Fig. 7.
Fig. 9 is the following saw blade drive mechanism cutaway view along A-A direction among Fig. 7.
Figure 10 is the last saw blade drive mechanism cutaway view along B-B direction among Fig. 7.
Wherein:
The electronic cutter with double saw bits 17-of 1-power transmission shaft 43-goes up the saw blade adaptor
The last saw blade 18 of 2-, 18 '-transmission mechanism 44-clamp nut
Saw blade adaptor under the last cutter tooth 19-of the 2a-assist handle 45-
The 3-work package 21-first bevel gear 51-first power transmission shaft
The saw blade 22-second bevel gear 52-second power transmission shaft under the 4-
Cutter tooth 23-third hand tap gear 53-the 3rd power transmission shaft under the 4a-
Blade 23a-bottom 53a-first end under the 4b-
5-centre bore 24-adaptor 53b-second end
6,6 '-motor 25-locking nut 70-planetary gearsets
6a, 6a '-pinion 26-bracing frame 71-first planet carrier
7,7 '-the first deceleration device 27- power transmission shaft 71a, 72a, 73a-planetary gear
7a, 7a '-gear box casing 27a- first end 71b, 72b-centre wheel
The flat square hole 27b-of 8-the second end 72-second planet carrier
8a-first perforate 28-guard shield 73-the third line star frame
8b-second perforate 29,29 '-the second deceleration device 74-first gear ring
9-connecting hole 30-electric power connection line 74a, 75a, 76a-internal tooth
The electronic cutter with double saw bits 31-first gear 75-of 10-second gear ring
The 11-lower connecting rod 32-second gear 76-the 3rd gear ring
12-upper connecting rod 33-the 3rd gear 80-matching hole
13-locking element 34-the 4th gear R, R '-direction of rotation
14-power brick 35-the 5th gear X1, the X2-electrical axis
15,15 '-operating grip 36-the 6th gear Y, Y '-applying plane
16-gauge tap 41-output shaft
Embodiment
With reference to Fig. 1; Shown in Figure 2; The present invention relates to a kind of electronic cutter with double saw bits 1; Its action bars 20 comprises lower connecting rod 11 and upper connecting rod 12, and upper connecting rod 12 relative lower connecting rods 11 can be along its longitudinally slidable adjustment, and through a locking element 13 relative position of upper connecting rod 12 and lower connecting rod 11 is locked.End away from upper connecting rod 11 on the lower connecting rod 11 is provided with work package 3, and motor 6 is provided with near work package 3.Upper connecting rod 12 is provided with operating grip 15, and gauge tap 16 is set on the operating grip 15, and upper connecting rod 12 is provided with the power supply that promising motor 6 rotations provide power away from the end of following action bars 11; What the power supply in the present embodiment adopted is detachable and rechargeable battery bag 14, and power brick 14 can adopt lithium cells, and the total voltage of this power brick 14 can be arranged to 18V; 21.6V; 25.2V, 32.4V, different voltages with different such as 36V.Work package 3 comprises upper and lower being oppositely arranged and direction of rotation pair of opposite disc metal saw blade, and the outer rim that wherein goes up the disc matrix of saw blade 2 and following saw blade 4 is respectively equipped with a plurality of cutters tooth.Be provided with the transmission mechanism 18 that is positioned at gear box casing 7a between motor 6 and the work package 3, the rotating tee of motor 6 is crossed transmission mechanism 18 and is passed to saw blade 2 and following saw blade 4 respectively.
With reference to Fig. 1, shown in Figure 2; Motor 6 is provided with along the longitudinal extension direction of action bars 20; Be electrical axis X1 along the longitudinally of action bars 20 extend and with upper and lower saw blade 2; 4 working face inclined design is the acute angle less than 90 degree between the applying plane Y of the extended line of the electrical axis X1 in the present embodiment and last saw blade 2 and following saw blade 4.Motor 6 ends have fixedly connected pinion 6a, and pinion 6a is passed to power transmission shaft 17 with first deceleration device 7 that is arranged in the gear box casing 7a with motor 6 rotary powers.What first deceleration device 7 adopted in the present embodiment is planetary gearsets, and those skilled in the art also can replace with belt wheel reducing gear etc. certainly.
With reference to shown in Figure 3, planetary gearsets 70 comprises first planet carrier, 71, the second planet carriers 72, the third line star frame 73, and first gear ring 74, second gear ring 75, the 3rd gear ring 76; Wherein the inner surface of first gear ring 74, second gear ring 75 and the 3rd gear ring 76 is provided with internal tooth 74a, 75a, 76a respectively; First planet carrier, 71 1 side end faces are provided with three planetary gear 71a with internal tooth 74a engagement, and the opposite side end face of first planet carrier 72 is provided with centre wheel 71b; Second planet carrier, 72 1 side end faces are provided with five planetary gear 72a with internal tooth 75a engagement, and second planet carrier, 72 opposite side end faces are provided with centre wheel 72b; The third line star frame 73 1 side end faces are provided with five planetary gear 73a with internal tooth 76a engagement; On the third line star frame 73 matching hole 80 is set simultaneously; Be used for fixedly connecting with power transmission shaft 17, power transmission shaft 17 also can be integrally formed with the third line star frame 73 certainly, perhaps otherwise fixedly connects.Motor pinion 6a and planetary gear 71a engaged transmission drive first planet carrier 71 and centre wheel 71b deceleration rotation; Because centre wheel 71b and planetary gear 72a engaged transmission drive second planet carrier 72 and centre wheel 72b deceleration rotation; Because centre wheel 72b and planetary gear 73a engaged transmission drive the third line star frame 73 and power transmission shaft 17 deceleration rotations.Arrive power transmission shaft 17 after the high rotating speed of motor 6 slows down through planetary gearsets 70 like this and had relatively low rotating speed.
Further comprise second deceleration device 29 in the gear box casing 7a; Second deceleration device 29 comprises first bevel gear 21 that is fixedly set in power transmission shaft 17 ends; Fixedly be coupled to second bevel gear 22 of power transmission shaft 27; Third hand tap gear 23, the first bevel gears 21 that are sheathed on power transmission shaft 17 are meshed with third hand tap gear 23 with second bevel gear 22 respectively, and second bevel gear 22 is coaxial with third hand tap gear 23; Power transmission shaft 27 relative power transmission shafts 17 are obliquely installed, and first bevel gear 21 drives second bevel gear 22 and 23 rotations of third hand tap gear respectively when power transmission shaft 17 rotations; Second bevel gear 22 drives power transmission shaft 27 and rotates together.
Power transmission shaft 27 has two ends; Wherein first end 27a is supported in the gear box casing 7a; Power transmission shaft 27 extends straight down and in the second end 27b place one adaptor 24 is set; Adaptor 24 among this embodiment is that close-fitting is connected with power transmission shaft 27, can certainly adopt other structures such as spline to connect; Adaptor 24 and following saw blade 4 are matched, make that saw blade 4 rotated under adaptor 24 drove when power transmission shaft 27 drive adaptors 24 rotate together.Third hand tap gear 23 in the present embodiment is arranged to umbrella curved tooth and power transmission shaft 27 matched in clearance; Therefore third hand tap gear 231 is independently rotated by the driving of first bevel gear 21; The bottom 23a and the last saw blade 2 of third hand tap gear 23 connect; Make third hand tap gear 23 drive saw blade 2 rotations under the driving of first bevel gear 21, and upward the direction of rotation of saw blade 2 is just in time opposite with the direction of rotation of following saw blade 4.
With reference to Fig. 4, shown in Figure 5, last saw blade 2 disk outer rims are provided with a plurality of cutter tooth 2a, and it is up-narrow and down-wide trapezoidal that cutter tooth 2a is, and blade 2b is positioned at saw blade 2 direction of rotation R one side on the cutter tooth 2a edge.The disk outer rim of following saw blade 4 also is provided with a plurality of cutter tooth 4a, and cutter tooth 4a shape is identical with cutter tooth 2a or similar, and its blade 4b is positioned at cutter tooth 42a edge saw blade 4 a direction of rotation R ' side down.Like this when last saw blade 2 and following saw blade 4 are the rightabout rotation, the blade 2b of last saw blade 2 and the blade 4b of following saw blade 4 can be in a certain position over against contacting, cut off action thereby formation is scissor between blade 2b and blade 4b.Last saw blade 2 is that the center of circle is distributed with a plurality of perforate 8a and perforate 8b along camber line shape with following saw blade 4 with the saw blade center, and the aperture of perforate 8a is big slightly, and the aperture of perforate 8b is slightly little; And the perforate 8a of last saw blade 2; 8b respectively with the perforate 8a of following saw blade 4, the position of 8b is corresponding to be provided with, the perforate 8a in this instance is arranged at respectively on the different concentric arc lines with perforate 8b; And circular hole in the perforate; Those skilled in the art it is contemplated that perforate 8a and perforate 8b is provided with at interval and by the circular arc distribution, arrange with other mode that perhaps perforate also can be arranged to square hole or other shape.Perforate 8a, the setting of 8b makes the deadweight that under the prerequisite that does not reduce saw blade intensity, alleviates saw blade; Because as driving force, so alleviating of saw blade weight can help reducing of battery power consumption to this cutter with double saw bits 1, improves the working time of single charge electric weight with the energy of power brick 14.In addition, when dismounting or replacing saw blade, owing to need earlier locking nut 25 is backed out from power transmission shaft 27; In order to make itself and power transmission shaft 27 not produce transfer; Therefore need power transmission shaft 27 be locked, correspondence is arranged at the perforate 8a of upper and lower saw blade 2,4 or locking that perforate 8b is power transmission shaft 27 provides convenience; As long as the operator limits upper and lower saw blade 2 on the other hand general utility wrench or other instrument are inserted among corresponding perforate 8a of saw blade 2 and following saw blade 4 or the perforate 8b; 4 rotations, the rotation of power transmission shaft 25 just limits, and the operator is with another hand unload lock jack panel 25 like a cork then.
Last saw blade 2 be provided with one provide power transmission shaft 27 to wear centre bore 5, the periphery of centre bore 5 is provided with a plurality of small sircle holes 9 that distribute along circular arc, and this circular arc and centre bore 5 concentric settings.This small sircle hole 9 is used for connecting with the base projections (not shown) of third hand tap gear 35, goes up saw blade 2 rotations thereby third hand tap gear 35 is driven.The centre of following saw blade 4 is provided with flat square hole 8, and this flat square hole 8 and reducing sleeve 24 form fit drive saw blade 4 rotations down when power transmission shaft 27 drives reducing sleeve 24 rotations.
Make progress saw blade 2 of following saw blade 4 edges tilts; Be provided with the gap between the disc face of last saw blade 2 and following saw blade 4; Has only contiguous cutter tooth 2a; The position of 4a is applying each other, makes that so upward saw blade 2 is smaller with the abrasion between the two in rotary course of following saw blade 4, and helps upper knife edge 2b and following blade 4b applying cutting.
The no-load speed of setting motor 6 outputs is 20400rpm, and the speed reducing ratio after then slowing down for the first time through first deceleration device 7 reaches 16.875; When power transmission shaft 17 will rotate successively through first gear 31, second gear 32, and the 3rd gear 33 carry out slowing down second time, this speed reducing ratio reaches 2,95, then motor 6 to the total reduction ratio of descending saw blade 4 reaches 49.78125.Carry out slowing down the second time when power transmission shaft 17 will rotate successively through first gear 31, second gear 32, the 4th gear 34, the 5th gear 35, the 6th gear 36, this speed reducing ratio reaches 3, and then the total reduction ratio of motor 6 supreme saw blades 2 reaches 50.625.The no-load current of setting this cutting machine 1 is 8A, and then according to the characteristic curve of motor 6, when voltage was 21.6V, then the load speed of cutting machine was 18600rpm, and the rotating speed of going up saw blade 2 during load is 368rpm; Following saw blade 4 rotating speeds are 374rpm.Detailed calculated process and data are with reference to shown in the table 1:
Table 1
Can find out that by table 1 data the high speed rotating speed of motor 6 reduces the rotating speed of upper and lower saw blade 2,4 through after the deceleration of transmission mechanism 18; Such slow-speed of revolution makes upper and lower saw blade 2,4 cutter tooth 2a in counterrotating process, forms scissor cutting, operation safe when being used for mowing or pollard between the 4a; The size that can satisfy above-mentioned high-revolving direct current generator at present can be done smallerly and be in light weight, and its diameter is about 48.4mm, and length is about 67.5mm, and weight is merely 270g; For the engine type cutting machine, the hand-held cutting machine is operated also lighter and handier from heavy and light.And, the noise and the vibration that mainly produce in the operating process have therefore been reduced greatly by transmission mechanism 18 owing to adopted the transmission mechanism different with the engine cutting machine.Especially it is pointed out that the working time of power brick 14 single charge is long more, shows that then the electric energy loss rate is low more when utilizing under the situation of power brick 14 as power supply, tool performance is also just good more.For direct current generator, the high engine speed range of exporting in the operating process is paid the utmost attention to between 12000r pm to the 25000r pm, and above-mentioned high rotating speed is through after the deceleration of transmission mechanism 18; Upper and lower saw blade 2,4 is exported the slow-speed of revolution respectively, and this slow-speed of revolution can be set to 200rpm respectively; 250rpm, 300rpm, 350rpm; 400rpm, 450rpm.If no-load power and bearing power are low more, show that then the operating efficiency of electronic cutter with double saw bits 1 is just high more, it is very crucial that suitable deceleration device and speed reducing ratio thereof are set.Through experiment test, speed ratio can be set to following value 30: 1,35: 1,40: 1,45: 1,50: 1,55: 1 respectively between the motor 6 of cutter with double saw bits 1 and the upper and lower saw blade 2,4.
With reference to shown in the table 2, be cutting machine 1 and the COMPARISON OF CALCULATED RESULTS WITH EXPERIMENTAL DATA of common mower, wherein the work package utilization of cutting machine 1 is the two saw blades of metal, the workpiece assembly utilization of common mower be line of cut.The voltage that puts on cutting machine 1 is 18V, and this moment, no-load current was 8A, and the saw blade output slow-speed of revolution is 400r pm; This moment, no-load power was 144W; When being used for mowing operation, its operating current is between the 9A to 12A, and the bearing power of output is merely between the 162W to 246W; When cutting machine 1 was used for poll, its operating current was 13.5A, and the bearing power of output is merely 243W.The operating voltage of common mower is 28.8V, and no-load current is 6.5A, and output speed is the high rotating speed of 8000r pm, and the no-load power of its output is 187.2; Operating current is 9-11A, and the bearing power of output is 259.2-316.8; When the no-load speed of this common mower transferred to 8500r pm, its no-load current was 8A, and the no-load power of output is 230W, and operating current is between the 9.5A to 13.5A, and output function is between the 273.6W to 388.8W.
Table 2
Can be found out that by table 2 data the no-load power of cutting machine 1 is lower than the no-load power of common mower, no matter cutting machine 1 is in is simultaneously mowed or the duty of poll, and its bearing power all bearing power than mower is low.That is to say, when utilizing power brick, utilize cutting machine 1 cutting work lower than the electric energy loss of common mower execution cutting work as working power.
That Fig. 6 is extremely shown in Figure 10 is second embodiment of the present invention, and for explaining conveniently, identical structure repeats no more and representes with same label, and various structure is represented with different labels.The driving power of motor 6 ' adopts AC power, through the electric power connection line 30 connection external power sources of action bars 20 ' one end; Action bars 20 ' is provided with the assist handle 19 of operating grip 15 ' and scalable work angle, and operating grip 15 ' is respectively equipped with gauge tap (not shown) with assist handle 19; Be the angle setting between motor 6 ' and the action bars 20 ', the rotary power of motor 6 ' is passed to saw blade 2 through the transmission mechanism 18 ' that is arranged at gear box casing 7a ' and reaches saw blade 4 down.Motor 6 ' among this embodiment is an alternating current generator, has the little and lightweight characteristic of similar size with motor 6 among first embodiment.
With reference to Fig. 7, shown in Figure 8, motor 6 ' arranges that vertically electrical axis heart X2 and last saw blade 2 reach the applying plane Y ' approximate vertical of saw blade 4 down.The end of motor 6 ' is provided with pinion 6a ', and the rotary power of motor 6 ' is passed to output shaft 41 through pinion 6a ' with the engaged transmission that is arranged at first deceleration device 7 ' in the gear box casing 7a '; First deceleration device 7 ' adopts the similar structures of the planetary gearsets 70 among first embodiment, also can replace with belt wheel reducing gear etc.Second deceleration device 29 ' comprises first gear 31 that fixedly is coupled to output shaft 41 ends; Fixedly be coupled to second gear 32 and the 4th gear 34 of first power transmission shaft 51; Fixedly be coupled to the 5th gear 35 of second power transmission shaft 52; Be arranged at the 3rd gear 33 and the 6th gear 36 of the 3rd power transmission shaft 53 respectively, wherein the 3rd gear 33 and the 3rd power transmission shaft 53 fixedly connect, and the 6th gear 36 and the 3rd power transmission shaft 53 are rotationally connected; Wherein first gear 31 is meshed with second gear 32, when first gear 32 drives 32 rotations of second gear, drives 51 rotations of first power transmission shaft, thereby the 4th gear 34 with the 32 coaxial settings of second gear is rotated with speed; Because second gear 32 is meshed with the 3rd gear 33 that is arranged at the 3rd power transmission shaft 53, when 32 rotations of second gear, it drives the 3rd gear 33 and the 3rd power transmission shaft 53 rotates with speed; The 4th gear 34 is meshed with the 5th gear 35; The 5th gear 35 meshes with the 6th gear 36 again simultaneously; Therefore when the 4th gear 34 rotated with speed with second gear 32, the 4th gear 34 drove 35 rotations of the 5th gear, and the 5th gear 35 drivings the 6th gear 36 rotates.What first, second, third, fourth in the present embodiment, the 4th, the 5th, the 6th gear adopted respectively is spur gear, and output shaft 41 and first power transmission shaft, 51, the second power transmission shafts, 52, the three power transmission shafts 53 are parallel respectively.
The 6th gear 36 has the lower end fixedly to connect saw blade adaptor 43 on, last saw blade adaptor 43 and last 2 detachable connections of saw blade, and when last saw blade adaptor 43 connected with last saw blade 2, the 6th gear 36 drove through last saw blade adaptor 43 and goes up saw blade 2 rotations; In addition, the below of last saw blade 2 is provided with supports the clamp nut 44 of going up saw blade 2, and the below of following saw blade 4 is provided with supports the clamp nut 46 of saw blade 4 down, and clamp nut 46 is threadedly connected to the 3rd power transmission shaft 53.
The 3rd power transmission shaft 53 has two ends, and first end 53a is supported in the gear box casing 7a ', and the 3rd power transmission shaft 53 extends and pass the center drilling of upper and lower saw blade 2,4 straight down; Following saw blade adaptor 45 and clamp nut 46 are set in turn in the second end 53b, and descend the saw blade adaptor 45 and the second end 53b fixedly to connect, the center drilling form fit of following saw blade adaptor 45 and following saw blade 4.
Further with reference to Fig. 9, shown in Figure 10; When motor 6 ' rotation; First gear 31 of output shaft 41 drives second gear, 32 rotations on first power transmission shaft 51; Second gear 32 drives 33 rotations of the 3rd gear, and the 3rd gear 33 drives the 3rd power transmission shaft 53 with fast rotation, and the 3rd power transmission shaft 53 is through saw blade 4 rotations under saw blade adaptor 45 drives down.51 rotations of first power transmission shaft drive 34 rotations of the 4th gear simultaneously; The 4th gear 34 drives 35 rotations of the 5th gear; The 5th gear 35 drives 36 rotations of the 6th gear, and the 6th gear 36 drives goes up saw blade 2 rotations, and it is opposite with the direction of rotation of following saw blade 4 to go up saw blade 2 direction of rotation.
Cutting machine 10 in the present embodiment adopts AC power; The range of speeds that motor 6 ' is paid the utmost attention to employing is 20000rpm to 36000rpm; Slow down through the first time of first deceleration device 7 ' earlier; Again through slowing down the second time of first, second, third gear in second deceleration device 29 '; Following saw blade 4 output low engine speed ranges are roughly 300rpm to 600rpm, through in second deceleration device 29 ' first, second, second time of the 4th, the 5th, the 6th gear slows down, and makes that going up saw blade 2 output low engine speed ranges is roughly between the 300rpm to 600rpm.Top-priority speed reducing ratio is 60: 1,55: 1, and 50: 1,45: 1,40: 1.Transmission mechanism 18 ' so is provided with, and makes no-load power and bearing power be reduced to reasonable levels, helps saving electric energy like this, and the vibration meeting of the noise that in operating process, produces of while cutting machine 10 is less relatively.
Claims (17)
1. hand-held cutting machine comprises:
Action bars;
Be arranged at the work package of action bars one end;
Drive the motor of work package, said motor is near the work package setting;
Be arranged at the transmission mechanism between motor and the work package;
It is characterized in that: said work package comprises a pair of coaxial setting and the opposite saw blade of direction of rotation, said motor pass through transmission mechanism will rotate output be passed to saw blade, the speed ratio of said motor and saw blade is between 30: 1 to 60: 1.
2. hand-held cutting machine according to claim 1 is characterized in that: the speed ratio of said motor and saw blade is between 45: 1 to 55: 1.
3. hand-held cutting machine according to claim 1 is characterized in that: the no-load speed of said motor is between 12000rpm to 36000rpm.
4. hand-held cutting machine according to claim 1 is characterized in that: the no-load speed of said saw blade is between 200rpm to 600rpm.
5. hand-held cutting machine according to claim 3 is characterized in that: said motor is a direct current generator.
6. hand-held cutting machine according to claim 3 is characterized in that: said motor is an alternating current generator.
7. hand-held cutting machine according to claim 5 is characterized in that: the no-load speed of said saw blade is between 200r pm to 450rpm.
8. hand-held cutting machine according to claim 6 is characterized in that: the no-load speed of said saw blade is between 300rpm to 600rpm.
9. hand-held cutting machine according to claim 1 is characterized in that: said saw blade comprises circular base and is located at a plurality of cutters tooth of said matrix outer rim that the blade of said cutter tooth is provided with along the circumferential the same side of said saw blade.
10. hand-held cutting machine according to claim 9 is characterized in that: said cutter tooth profile is up-narrow and down-wide trapezoidal.
11. hand-held cutting machine according to claim 9 is characterized in that: first saw blade and second saw blade of said saw blade are equipped with a plurality of perforates, and said bore size and position are corresponding respectively.
12. according to claim 1 or 5 described hand-held cutting machines, it is characterized in that: said hand-held cutting machine further is included as the power brick that the motor rotation provides energy, and said power brick is arranged at the other end of relative work package on the action bars.
13. according to claim 1 or 6 described hand-held cutting machines, it is characterized in that: said hand-held cutting machine is provided with electric power connection line.
14. hand-held cutting machine according to claim 1; It is characterized in that: said transmission mechanism comprises first power train that drives the rotation of first saw blade and second power train that drives the rotation of second saw blade, and the rotating speed of the rotating speed of said first saw blade and second saw blade is inequality.
15. hand-held cutting machine according to claim 1; It is characterized in that: said action bars comprises upper connecting rod and lower connecting rod; The relative lower connecting rod of upper connecting rod can be along its longitudinally slidable adjustment, and through locking element the relative position of upper connecting rod and lower connecting rod is locked.
16. hand-held cutting machine according to claim 1 is characterized in that: the axis of said motor is consistent with the bearing of trend of action bars, and is the acute angle setting with said saw blade applying plane.
17. hand-held cutting machine according to claim 1 is characterized in that: the axis of said motor and said saw blade applying plane are perpendicular.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100084836A CN102577738A (en) | 2011-01-14 | 2011-01-14 | Hand-held cutter |
| PCT/CN2012/070359 WO2012095029A1 (en) | 2011-01-14 | 2012-01-14 | Portable cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100084836A CN102577738A (en) | 2011-01-14 | 2011-01-14 | Hand-held cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102577738A true CN102577738A (en) | 2012-07-18 |
Family
ID=46467429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100084836A Pending CN102577738A (en) | 2011-01-14 | 2011-01-14 | Hand-held cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102577738A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812813A (en) * | 2012-07-20 | 2012-12-12 | 常州格力博有限公司 | Grass mowing machine |
| CN103004493A (en) * | 2012-12-19 | 2013-04-03 | 长安大学 | Vehicle-mounted type jujube tree trimmer |
| CN104106337A (en) * | 2013-04-17 | 2014-10-22 | 苏州宝时得电动工具有限公司 | Grass mower |
| CN118640992A (en) * | 2024-08-14 | 2024-09-13 | 山东润通科技有限公司 | A water source water level measuring device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09262020A (en) * | 1996-03-27 | 1997-10-07 | Maruyama Mfg Co Ltd | Cutting blade device of brush cutter |
| CN2303444Y (en) * | 1997-08-05 | 1999-01-13 | 黄罗金珠 | Grass cutter |
| EP1772051A1 (en) * | 2005-10-10 | 2007-04-11 | Günter Schumacher | Drive unit for a mowing blade |
| US20080271325A1 (en) * | 2004-12-09 | 2008-11-06 | Edward Patrick Hurley | Barrier bracket assembly for a yard tool or the like |
| CN201238470Y (en) * | 2008-08-08 | 2009-05-20 | 毛海文 | Portable electric mower |
| CN101632335A (en) * | 2008-07-23 | 2010-01-27 | 苏州宝时得电动工具有限公司 | Handheld operating apparatus |
| JP2010063452A (en) * | 2008-09-10 | 2010-03-25 | Nishigaki Kogyo Kk | Hand-held bush cutter |
-
2011
- 2011-01-14 CN CN2011100084836A patent/CN102577738A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09262020A (en) * | 1996-03-27 | 1997-10-07 | Maruyama Mfg Co Ltd | Cutting blade device of brush cutter |
| CN2303444Y (en) * | 1997-08-05 | 1999-01-13 | 黄罗金珠 | Grass cutter |
| US20080271325A1 (en) * | 2004-12-09 | 2008-11-06 | Edward Patrick Hurley | Barrier bracket assembly for a yard tool or the like |
| EP1772051A1 (en) * | 2005-10-10 | 2007-04-11 | Günter Schumacher | Drive unit for a mowing blade |
| CN101632335A (en) * | 2008-07-23 | 2010-01-27 | 苏州宝时得电动工具有限公司 | Handheld operating apparatus |
| CN201238470Y (en) * | 2008-08-08 | 2009-05-20 | 毛海文 | Portable electric mower |
| JP2010063452A (en) * | 2008-09-10 | 2010-03-25 | Nishigaki Kogyo Kk | Hand-held bush cutter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812813A (en) * | 2012-07-20 | 2012-12-12 | 常州格力博有限公司 | Grass mowing machine |
| CN103004493A (en) * | 2012-12-19 | 2013-04-03 | 长安大学 | Vehicle-mounted type jujube tree trimmer |
| CN104106337A (en) * | 2013-04-17 | 2014-10-22 | 苏州宝时得电动工具有限公司 | Grass mower |
| CN118640992A (en) * | 2024-08-14 | 2024-09-13 | 山东润通科技有限公司 | A water source water level measuring device |
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Application publication date: 20120718 |