CN106863502A - Integral type dust sucting motor and mitre saw - Google Patents
Integral type dust sucting motor and mitre saw Download PDFInfo
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- CN106863502A CN106863502A CN201610476896.XA CN201610476896A CN106863502A CN 106863502 A CN106863502 A CN 106863502A CN 201610476896 A CN201610476896 A CN 201610476896A CN 106863502 A CN106863502 A CN 106863502A
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- dust
- dust suction
- housing
- fan blade
- rotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G3/00—Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
- B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Integral type dust sucting motor, including housing, stator is installed in housing, rotor is installed in the middle of stator, rotor is fixed by preceding end bearing, rear end bearing and housing respectively, and dust exhaust apparatus is installed on rotor, and dust exhaust apparatus includes dust suction wind box and dust suction fan blade, the port of export of dust suction wind box and the blade-side of dust suction fan blade are relative, and dust suction fan blade is fixedly connected with the rotor；Dust suction wind box is provided with entrance point in the peripheral side of rotor, and the suction port connected with entrance point is opened up on the housing at dust suction wind box position, and dust mouth is opened up on the housing at dust suction fan blade position, and suction port, dust mouth are arranged on housing side.Be arranged on a roots rotor for radiating, dust suction and driving by the present invention, forms the integral type dust sucting motor with self-dust-suction function, it is no longer necessary to which supporting single dust collection equipment is collected to dust etc., reduces cost, convenient use and carrying；Dust can be directly realized by during for electric tool, be compared with existing mitre saw, dust-absorbing rate of the invention can reach more than 95%.
Description
Technical field
The present invention relates to a kind of motor with self-dust-suction function, belong to electric tool technical field, more particularly to a kind of integral type dust sucting motor and mitre saw.
Background technology
Motor is referred to as motor, it is also possible to referred to as motor, is a kind of electromechanical energy conversion device, including induction machine, series excited machine and direct current generator.Motor be by rotor be placed in stator generation rotating excitation field in, in the presence of rotating excitation field, obtain a rotating torque, thus rotor rotate to outside provide power source.Because rotating speed is higher; in order to stator, rotor and the carbon brush of giving motor interior are lowered the temperature; generally also radiator fan can be installed in the end of rotor, motor casing end opens up fresh air inlet or exhaust vent, reach the purpose of cooling along the blowing of radiating rib or air draught of fuselage by radiator fan.When radiator fan works, its zone line can produce certain negative pressure, be conducive to improving gas flow capability and radiating effect using the negative pressure, but due to the stop of the parts such as stator, rotor, carbon brush, bearing or gear, radiator fan zone line is difficult preferably to be utilized, if to utilize the negative pressure region, it is necessary to the length of Extending Rotor is to ensure the spacing of radiator fan and adjacent component, the axial length of rotor and the length of motor can accordingly be increased, cause motor cost to improve.
In some occasions, such as in sander, mitre saw electric tool, substantial amounts of dust, sawdust can be produced during cutting material, if without safeguard procedures, a large amount of dust can be floated in atmosphere, is inhaled into human body；The dust in indoor each corner is scattering into, clears up especially difficult, easily form secondary pollution.The house-owner that either directly the workman of operation still will move in, is direct victim, and this dust is sucked for a long time, easily forms pneumoconiosis, respiratory tract infection etc., and the aerial dust of floating touches skin and easily causes the symptom such as allergic.
The type electric tool can produce substantial amounts of dust generally not with dust exhaust apparatus in the market, fly upward in air, pollute environment, be detrimental to health, and extremely difficult cleaning.Although part electric tool is provided with suction port, can be with external special dust collection equipment storage dust, sawdust, with certain pick-up performance, but universal dust-absorbing rate is poor, it is typically only capable to collect dust, the sawdust of 20-30%, still has substantial amounts of dust, sawdust to be scattered in atmosphere and around electric tool.In addition, supporting independent collected outside equipment, such as dust catcher complete dust suction, cost can be increased, it has not been convenient to carry；Dust collecting opening is difficult to match with the interface size of dust catcher, using very inconvenient.Especially for decoration worker, finishing place can be frequently changed, along with increasing building site requires that dustless finishing, common sander, mitre saw etc. have been difficult to meet labor claim.
Even in existing dustless sander, by the dust collecting opening for setting the suction port on dust absorption fan, grinding disc or grinding cover, set in dust absorption fan periphery, the pick-up performance of sander can be improved.But due to structure and other requirements, the limited amount that suction port is set, it is impossible to which covering produces the Zone Full of dust；In addition, the structure of suction port and dust absorption fan is similar to traditional motor heat dissipation fan, due to the stop of the parts such as bearing, gear, optimal negative pressure region is difficult preferably to be utilized in the middle of dust absorption fan, all larger dust collection efficiency for reducing dustless sander of these factors.
Such as Chinese patent（Application number 200810019383.1, authorized announcement date on June 6th, 2012）Disclose " a kind of motor of dust collector ", including casing, stator core, rotor core, determine impeller, fan housing, movable vane wheel, stator winding, rotor windings and radiator fan, radiator fan is arranged between bearing and commutator, is fixed on output shaft, and gap is left between the fan blade outer circular edge and the inner peripheral wall of casing of radiator fan.The invention makes its close radiator fan by adjusting the position of commutator, and to improve the heat dispersion of motor, but the dynamic structure of its radiating Airflow and principle are identical with traditional motor heat dissipation fan method；In addition, the motor of dust collector and the problem of unresolved one dust suction.
Chinese patent（The applying date 201220248866.0, authorized announcement date on December 12nd, 2012）Disclose " a kind of wall sander ", motor including casing and in casing, the part that casing is stretched out in the armature spindle drive connection of the motor is provided with emery disc and emery disc cover, the rotor has the rotor of double fan, radiator fan is installed on the armature spindle of the double fan, dust absorption fan is installed on the outside of radiator fan.When a kind of wall sander of the utility model carries out sanding treatment, emery disc rotates polishing metope, and emery disc cover aggregation dust, dust absorption fan rotation makes the interior generation negative pressure of casing, and dust is with air-flow by the way that vacuum chamber is into dust flue and is collected in dust bag.Compared with the dust suction mode of existing connection dust exhaust apparatus, the wall sanding machine structure is more compact, can improve pick-up performance and efficiency, but because its suction port is located between emery disc and emery disc cover, it is impossible to covering produces the Zone Full of dust；Further, since negative pressure region optimal in the middle of the stop of the part such as bearing, gear, dust absorption fan cannot be utilized so that the dust-absorbing rate of the wall sander is limited.
Chinese patent（The applying date 201210585166.5, Shen Qing Publication day on July 2nd, 2014）Disclose a kind of " being applied to the automatic dust absorption system and saw of saw ", including：Fan, the fan is connected to one end of the motor shaft of saw, is driven through motor shaft and is rotated together with the saw blade of saw；Housing, is installed on the motor housing of saw, can house the fan, and be provided with suction port and dust collecting opening；Sweep-up pipe, including first end, body and the second end, the first end is connected to the suction port, and the body is soft body and is arranged between the first end and the second end that the sweep-up pipe absorbs the sawdust dust of saw by the second end.
The invention belongs to a kind of saw that saw blade is mounted directly on motor shaft, relative to the saw of homogeneous structure, the suction port of dust collecting opening and fan is simply directly connected with body, the suction port and dust collecting opening and its working method of fan are similar with existing motor heat dissipation fan；The body set in outside motor can influence the operation of the saw, increase the resistance of dust suction path；In addition, cannot collect most dust, sawdust by the suction of single-piece fan, the motor rear end makes air-flow directly to be cooled down to motor along motor direction of principal axis due to increasing dust suction fan blade, and side drives air port into can influence radiating effect.Therefore, the dust-absorbing rate of the saw is relatively low, uses more inconvenience.
In sum, motor is realized preferable self-dust-suction function, be always the technical barrier of field of power tools.
The content of the invention
It is an object of the invention to provide a kind of the integral type dust sucting motor and mitre saw different from prior art design, it is the professional equipment for realizing integrated high-efficiency dust suction, solves the problems, such as in existing electric tool that dust absorbing structure is complicated and dust-absorbing rate is relatively low, effect is poor.
The present invention is achieved by the following technical programs：
Integral type dust sucting motor, including housing, stator is installed in housing, rotor is installed in the middle of stator, rotor is fixed by preceding end bearing, rear end bearing and housing respectively, and dust exhaust apparatus is installed on the rotor, and the dust exhaust apparatus includes dust suction wind box and dust suction fan blade, the port of export of dust suction wind box and the blade-side of dust suction fan blade are relative, and dust suction fan blade is fixedly connected with the rotor；The dust suction wind box is provided with entrance point in the peripheral side of rotor, and the suction port connected with entrance point is opened up on the housing at dust suction wind box position, and dust mouth is opened up on the housing at dust suction fan blade position, and the suction port, dust mouth are arranged on housing side.
The integral type dust sucting motor that the present invention is provided, in a motor shaft, i.e., can simultaneously install cooling wind blade and dust exhaust apparatus on rotor, the outer end that rotor stretches out housing can be directly used for driving external equipment.Dust suction wind box and dust suction fan blade are provided with dust exhaust apparatus, the port of export of dust suction wind box and the blade-side of dust suction fan blade are relative, by the setting dust suction wind box of novelty, so that dust suction fan blade can move inward setting and suction port, dust mouth from the position of conventional motors end can be while be arranged on housing side, rather than being separately positioned on shell end and side.When rotated, due to the dust suction wind box port of export towards the blade-side of dust suction fan blade, in addition to rotor, bearing-free, gear etc. stop the zone line of dust suction fan blade dust suction fan blade, therefore the aspiration of negative pressure produced when can be rotated all of dust suction fan blade.Dust, sawdust etc. enter dust suction wind box from suction port, entrance point, concentrate on the zone line of dust suction fan blade, and then the tangential direction from the blade periphery of dust suction fan blade throws away, and is finally directly collected from dust mouth.Dust suction wind box and dust suction fan blade form a Wind cylinder structure, and dust suction fan blade throws away the internal gas containing dust from dust mouth in air duct inner rotation.When rotated, zone line forms negative pressure to dust suction fan blade, and under the effect of the pressure, dust, sawdust can be inhaled into air duct by dust suction wind box, then thrown away by the tangential direction of dust suction fan blade periphery again, forms dust suction circulation.
Integral type dust sucting motor as described above, the housing is made up of the motor cover and end cap of arranged on left and right sides.
Integral type dust sucting motor as described above, the dust suction wind box is arranged between dust suction fan blade and stator, and closure is provided between dust suction fan blade and dust suction wind box, and closure middle setting air vent, air vent coordinates with the interior recess of dust suction leaf blade side.
Integral type dust sucting motor as described above, the suction port of the housing and/or the entrance point of dust suction wind box install security protection waffle slab.
Mitre saw, including base, workbench, baffle plate and hand handle, the rear end mounting and fixing bracket of workbench, installation activity support on fixed support, integral type dust sucting motor as described above is installed on the travel(l)ing rest, the end that the rotor stretches out housing is installed by the first transmission mechanism, fixed shield is installed on the housing or on travel(l)ing rest, fixed shield is provided with the rotating shaft for installing saw blade, second transmission mechanism is installed in the rotating shaft of the same side of the first transmission mechanism, first transmission mechanism can drive the second transmission mechanism to act, the suction port of the housing is arranged on the tangential direction of saw blade.
The mitre saw that the present invention is provided, belongs to a kind of motor and is mounted in workbench rear end and the electric tool that can be moved with handle.On motor shaft, i.e., the first transmission mechanism is installed on rotor, the tool piece such as saw blade is installed on the second transmission mechanism, the first transmission mechanism and the second transmission mechanism coordinate can drive saw blade etc. to carry out cutting operation.Fixed shield is installed in the periphery of saw blade, and for protecting safety, suction port is located at the rear side of saw blade, positioned at its tangential direction.Because the dust suction wind box and dust suction fan blade that integral type dust sucting motor inside is set form a Wind cylinder structure, and dust suction fan blade throws away the internal gas containing dust from dust mouth in air duct inner rotation.Dust suction fan blade is when rotated, because dust suction wind box exit end face is to the blade-side of dust suction fan blade, the zone line of dust suction fan blade is in addition to rotor, bearing-free, gear etc. stop, therefore, it can all of the negative pressure region in the middle of dust suction fan blade, under the effect of the pressure, dust, sawdust are inhaled into air duct by suction port, are then thrown away from the tangent line of its periphery by dust suction fan blade again, form dust suction circulation.So as to realize the pick-up performances such as preferable dust, sawdust and preferable dust-absorbing rate.
Mitre saw as described above, dust storage device is installed between the suction port and workbench, the dust storage device includes storage baffle plate, storage baffle plate lower end is fixedly connected with the intermediate connecting part on rear side of the baffle plate, its upper end is arranged on suction port outside, on the outside of saw blade, storage baffle plate front forms dust storage mouth to the storage mobilizable enclosing of baffle plate.
Mitre saw as described above, first transmission mechanism is belt pulley, and the second transmission mechanism is gear, intermediate conversion part is provided between belt pulley and gear and is driven.
Mitre saw as described above, first transmission mechanism, the second transmission mechanism are belt pulley, and 2 belt pulleys are directly connected to by belt or intermediate belt, belt pulley are driven, belt pulley and belt periphery mounting strap.
Mitre saw as described above, first transmission mechanism, the second transmission mechanism are gear, and 2 gears are engaged or are driven by idler gear.
Mitre saw as described above, the dust mouth is located at the rear end top of workbench, and dust bag is installed on dust mouth.
It is an advantage of the invention that：
1st, integral type dust sucting motor of the present invention, radiating, dust suction and driving are arranged on a roots rotor, form the integral structure with self-dust-suction function, dust-absorbing rate is improved significantly；Other dust catcher etc. is not needed to process dust etc., can preferable reduces cost, be convenient for carrying.It is supporting to be directly realized by dust on electric tool, thus, be not in and the external unmatched problem of dust catcher interface.
The 2nd, cooling wind blade and dust exhaust apparatus are installed on a roots rotor, i.e. motor shaft, the outer end that stator stretches out housing is used to drive external equipment.Dust suction wind box and dust suction fan blade are provided with dust exhaust apparatus, the port of export of dust suction wind box and the blade-side of dust suction fan blade are relative, by the setting dust suction wind box of novelty so that dust suction fan blade can move inward setting from the position of conventional motors end, improve the dynamic equilibrium performance of motor；Suction port, dust mouth can simultaneously be arranged on hull outside, rather than in existing motor, one is arranged on motor end, another is arranged on its hull outside, especially to the improvement of suction port, facilitate this electric drilling match in being used on electric tool, the compact conformation of various electric tools, scientific and reasonable, overall structure, the performance of optimization and raising electric tool can be realized.
3rd, mitre saw of the present invention is coordinated using integral type dust sucting motor, and compact overall structure is easy to carry and moves；The inertia dust suction that dust suction fan blade is rotated using saw blade, relative to supporting dust catcher independent outside dust mouth, also greatly reduces power consumption, reduces use cost.
4th, in mitre saw, dust, wood chip produced by the effect of dust exhaust apparatus, cutting etc. is under the inertia of saw blade rotation, developed simultaneously to be directly entered in air duct by suction and conveying and realize dust, pick-up performance and dust-absorbing rate are obviously improved, and are compared with existing mitre saw, and dust suction effect of the present invention can reach more than 80%.
The 5th, dust storage device is installed below suction port, dust storage device includes storage baffle plate, and storage baffle plate lower end is fixedly connected with the intermediate connecting part on rear side of the baffle plate, and its upper end is fixed on and mitre saw dust mouth outside.The produced dust in cutting process of saw blade, wood chip etc., the overwhelming majority can be moved in the case where the saw blade of rotation drives along its tangential direction, the major part under the suction of cutting force and dust suction fan blade such as this part dust, wood chip can be entered into air duct, even if thering is small part dust, wood chip to cross suction port under the drive of saw blade, also can be by fixed shield, storage baffle, finally fall back in the storage baffle plate on suction port periphery, carried by air-flow and siphoned away.Therefore, after installing dust storage device, the total dust collection efficiency of this mitre saw can reach more than 95%, be capable of achieving dustless operation truly.
Simultaneously, the storage baffle plate has certain tensility energy, its top can carry out left and right, move up and down with workbench, handle, its shape and structure have preferable stretchable, deformation nature, therefore, can realize that preferable dust, sawdust stop and receive under the different applying working condition of mitre saw.After storage baffle plate is set in addition, because the air-flow around saw blade is blocked concentrating, radiating for saw blade is highly profitable, especially by storage baffle plate setting into up-small and down-big horn-like structure, air-flow increases in suction port, pressure is pushed the speed and is accelerated, and the effect of dust suction and radiating is formed the effect being superimposed.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described below.
Fig. 1 is the sectional view of integral type dust sucting motor of the present invention
Fig. 2 is the explosive view of integral type dust sucting motor of the present invention.
Fig. 3 is the stereogram of end cap described in Fig. 1.
Fig. 4 is the stereogram of mitre saw of the present invention.
Fig. 5 is the right view of Fig. 4.
Fig. 6 is the left view of Fig. 4.
Fig. 7 is the front view of Fig. 4.
Fig. 8 is the rearview of Fig. 4.
Fig. 9 is the top view of Fig. 4.
Reference：1- housings, 11- motor covers, 12- end caps, 13- stators, 14- rotors, end bearing before 15-, 16- rear end bearings, 17- suction ports, 18- dust mouths, 19- wind scoopers, 191- sealing plates, 20- cooling wind blades, 2- dust exhaust apparatuses, 21- dust suction wind boxes, 211- entrance points, the 212- ports of export, 213- security protection waffle slabs, 22- dust suction fan blades, 221- blades, 23- closures, 231- air vents, 3- bases, 4- workbench, 5- baffle plates, 6- hand handles, 7-fixed support, 8- travel(l)ing rests, 9- shield pull bars 10- fixes shield, 30- receives baffle plate, 31- intermediate connecting parts, 32- dusts receive mouth, 33- shields, 34- dust bags, 35- movable shields.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
As shown in Figure 1-Figure 3, the present embodiment integral type dust sucting motor, including housing, installed in housing and rotor is installed in the middle of stator, stator, rotor is fixed by preceding end bearing, rear end bearing and housing respectively, dust exhaust apparatus is installed on rotor, dust exhaust apparatus includes dust suction wind box and dust suction fan blade, and the port of export of dust suction wind box and the blade-side of dust suction fan blade are relative, and dust suction fan blade is fixedly connected with the rotor；Dust suction wind box is provided with entrance point in the peripheral side of rotor, and the suction port connected with entrance point is opened up on the housing at dust suction wind box position, and dust mouth is opened up on the housing at dust suction fan blade position, and suction port, dust mouth are arranged on housing side.
Specifically, the present embodiment is disclosed in integral type dust sucting motor, and cooling wind blade 20 and dust exhaust apparatus 2 can be simultaneously installed on a motor shaft, i.e. rotor 14, and the outer end that rotor 14 stretches out housing can be directly used for driving external equipment.Dust suction wind box 21 and dust suction fan blade 22 are provided with dust exhaust apparatus 2, the port of export 212 of dust suction wind box 21 is relative with the blade-side of dust suction fan blade 22, by the setting dust suction wind box 21 of novelty, so that dust suction fan blade 22 can move inward setting from the position of conventional motors end, and suction port 17, dust mouth 18 can simultaneously be arranged on the side of housing 1, rather than being separately positioned on the end of housing 1 and side.Dust suction fan blade 22 is when rotated, due to dust suction wind box 21 the port of export 212 towards dust suction fan blade 22 blade-side, in addition to rotor 14, bearing-free, gear etc. stop the zone line of dust suction fan blade 22, therefore the aspiration of negative pressure produced when can be rotated all of dust suction fan blade 22.Dust, sawdust etc. enter dust suction wind box 21 from suction port 17, entrance point 211, concentrate on the zone line of dust suction fan blade 22, and then the tangential direction from the blade periphery of dust suction fan blade 22 throws away, and is finally directly collected from dust mouth 18.Dust suction wind box 21 and dust suction fan blade 22 constitute an air duct, and dust suction fan blade 22 throws away the internal gas containing dust from the dust mouth 18 of the side of housing 1 in air duct inner rotation.When rotated, zone line forms negative pressure to dust suction fan blade 22, and under the effect of the pressure, dust, sawdust can be inhaled into air duct by dust suction wind box 21, then thrown away by the tangential direction of the periphery of dust suction fan blade 22 again, forms dust suction circulation.
In Fig. 2, Fig. 3 it is indicated by an arrow go out dust, sawdust be inhaled into by suction port 17, then flow sequentially through the air duct of dust suction wind box 21, dust suction fan blade 22 composition, finally tangentially thrown away by dust absorption fan 22 to the flow path of dust mouth 18.During dust suction, in addition to suction port 17 and dust mouth 18, each part that dust, sawdust pass through is required to be tightly connected with housing 1, rotor 14, to prevent string wind, influences pick-up performance, it is to avoid dust etc. enters motor internal.
Radiating or dust absorbing structure obvious differences with existing motor, suction port of the present invention 17, dust mouth 18 can simultaneously be arranged on the both sides of housing 1；Dust exhaust apparatus 2 is located between stator 13 and the external drive part of rotor 14, is conducive to improving the dynamic equilibrium performance of motor, makes the compact overall structure of the motor, is easy to carry and is moved；Its zone line forms negative pressure to dust suction fan blade 22 when rotated, fundamentally improves the efficiency of dust suction, relative in the independent supporting dust catcher in the outside of dust mouth 18, also greatly reduces power consumption, reduces use cost.In order to supporting suitable for the different hardness such as timber, metal or plastics material, the cutting of section bar, dust suction fan blade 22 can be made of the material such as metal or plastics, resin.
As shown in Fig. 2 the housing 1 of the present embodiment is made up of the motor cover 11 and end cap 12 of arranged on left and right sides.Dust suction wind box 21, dust suction fan blade 22 is arranged in end cap 12.Housing 1 is arranged to 2 parts, is easy to the manufacture and maintenance of this motor, it is possible to preferably by the isolation of dust, sawdust current path and motor internal, to ensure use quality and the extension life-span of motor.
As shown in Figure 2, the present embodiment dust suction wind box 21 is arranged on the inner side of dust suction fan blade 22, it is located between stator 13 and dust suction fan blade 22, closure 23 is installed between dust suction fan blade 22 and dust suction wind box 21, the middle setting air vent 231 of closure 23, air vent 231 coordinates with the interior recess of the blade-side of dust suction fan blade 22.Dust suction wind box 21 may also be arranged on the outside of dust suction fan blade 22, but can increase the length of motor axial direction, be unfavorable for supporting being installed on electric tool；In the case of no closure 23, the port of export 212 of dust suction wind box 21 can inwardly be tightened up to approach the interior recess of the blade-side of dust suction fan blade 22, but using structure arrangement, due to needing to avoid being rubbed between dust suction wind box 21 and the blade of dust suction fan blade 22, need to retain certain gap, therefore dust, sawdust etc. can directly be discharged from the gap location through the periphery of dust suction fan blade 22, and without the negative pressure region of dust suction fan blade 22, influence pick-up performance.
Further, the present embodiment installs security protection waffle slab 213 in the suction port 17 of the housing 1 and/or the entrance point 211 of dust suction wind box 21.Setting the security protection waffle slab 213 can avoid larger cutting fragment from entering air duct, internal part is caused to wear and tear or block, simultaneously, in order to the less fragment for sucking can be discharged from air duct, the grid hole set on security protection waffle slab 213 uses square or circle, and the spacing of most peripheral is equal or slightly smaller between the width and two adjacent blades on dust suction fan blade 22 of grid hole.
Such as Fig. 4-Fig. 9, present embodiment discloses a kind of mitre saw, including base 3, workbench 4, baffle plate 5 and hand are 6, the rear end mounting and fixing bracket 7 of workbench 4, installation activity support 8 on fixed support 7, integral type dust sucting motor as described above is installed on the travel(l)ing rest 8, the end that the rotor 14 stretches out housing 1 is installed by the first transmission mechanism, fixed shield 10 is installed on the housing 1 or on travel(l)ing rest 7, fixed shield 10 is provided with the rotating shaft for installing saw blade, second transmission mechanism is installed in the rotating shaft of the same side of the first transmission mechanism, first transmission mechanism can drive the second transmission mechanism to act, tangential direction of the suction port 17 of the housing 1 in face of saw blade.
Wherein, fixed shield 10 can be directly anchored on integral type dust sucting motor, or is fixedly connected with travel(l)ing rest 8, as long as ensureing that suction port 17 is located at the tangential direction of saw blade.In addition, saw blade conveniently can be mechanically automatically opened up or be covered in the fixed front side of shield 10 by the connecting move control of shield pull bar 9 being hinged with fixed support 7 with installation activity shield 35, movable shield 35, it is easy to saw blade to cut to use, or saw blade is changed and safeguarded.
The mitre saw that the present invention is provided, belong to a kind of motor and be mounted in the rear end of workbench 4 and the electric tool that can be moved with handle, on motor shaft, first transmission mechanism is installed on rotor 14, the tool piece such as saw blade is installed, the first transmission mechanism and the second transmission mechanism coordinate can drive saw blade etc. to carry out cutting operation on the second transmission mechanism.Fixed shield 10 is installed in the periphery of saw blade, and for protecting safe operation, suction port 17 is located at the rear side of saw blade, in face of its tangential direction.The dust suction wind box 21 and dust suction fan blade 22 that integral type dust sucting motor inside is set constitute an air duct, and dust suction fan blade 22 throws away the internal gas containing dust from dust mouth 18 in air duct inner rotation.Dust suction fan blade 22 is when rotated, due to the port of export of dust suction wind box 21 towards the blade-side of dust suction fan blade 22, the zone line of dust suction fan blade 22 is in addition to rotor 14, bearing-free, gear etc. stop, therefore can be all of the negative pressure region in the middle of dust suction fan blade 22, under the effect of the pressure, dust, sawdust are inhaled into air duct by suction port 17, then thrown away from the tangent line of its periphery by dust suction fan blade 22 again, form dust suction circulation.Therefore, it is possible to realize the pick-up performances such as preferable dust, sawdust and preferable dust-absorbing rate.
By the effect of dust exhaust apparatus 2, dust, wood chip of generation etc. being cut under the inertia of saw blade rotation and the suction of dust suction fan blade 22, being developed simultaneously by suction and conveying and be directly entered in air duct, pick-up performance and efficiency are obviously improved.Compared with existing mitre saw, the dust collection efficiency of this mitre saw can reach more than 80%.
As shown in Fig. 4, Fig. 5, Fig. 6, the present embodiment installs dust storage device in the outside of suction port 17, dust storage device includes storage baffle plate 30, the storage lower end of baffle plate 30 is fixedly connected with the intermediate connecting part 31 of the rear side of baffle plate 5, its upper end is fixed on and the outside of mitre saw suction port 17, in saw blade lower outside, storage baffle plate 30 front forms dust storage mouth 32 to the storage mobilizable enclosing of baffle plate 30.
The produced dust in cutting process of saw blade, wood chip etc., the overwhelming majority can be moved in the case where the saw blade of rotation drives along its tangential direction.The major part in the presence of the suction of cutting force and dust suction fan blade 22 such as this part dust, wood chip can be entered into air duct, even if having small part dust, wood chip that suction port 17 has been crossed under the drive of saw blade, also can be stopped by fixed shield 10, storage baffle plate 30, the peripheral position of suction port 17 finally is fallen back to, is carried by air-flow and siphoned away.Therefore, after installing dust storage device, the total dust collection efficiency of this mitre saw can reach more than 95%, be capable of achieving dustless operation truly.Simultaneously, the storage baffle plate 30 has certain tensility energy, its top can with workbench 4, handle 6 or so, move up and down, its shape and structure have preferable stretchable, deformation nature, therefore, can realize that preferable dust, sawdust stop and receive under the different applying working condition of mitre saw.
After storage baffle plate 30 is set in addition, because the air-flow around saw blade is blocked concentrating, radiating for saw blade is highly profitable, storage baffle plate 30 is especially arranged to up-small and down-big horn-like structure, air-flow increases in suction port, pressure is pushed the speed and is accelerated, and the effect of dust suction and radiating is formed the effect being superimposed.
As shown in figure 5, the first transmission mechanism, the second transmission mechanism are belt pulley in the present embodiment, 2 belts are directly connected by belt or intermediate belt, belt pulley are driven, belt pulley and belt periphery mounting strap 33.In addition to using belt, pulley drive, it would however also be possible to employ gear is engaged or idler gear transmission, or the first transmission mechanism is set into belt pulley, and the second transmission mechanism is set to gear, intermediate conversion part is provided between belt pulley and gear and is driven.But belt and belt wheel mode are used, noise is relatively small, resistance increase, will not also produce the problem of overload during cutting, be conducive to protecting the safety of motor.
As shown in Fig. 7, Fig. 8, Fig. 9, the present embodiment dust mouth 18 is located at the rear end top of workbench 4, and dust bag 34 is installed on dust mouth 18.Dust bag 34 is detachably arranged on electric machine casing 1, is convenient to clean, carries and is used.
Integral type dust sucting motor of the present invention, integral structure is arranged to by radiating, dust suction and driving, it is no longer necessary to which dust catcher in addition etc. is collected to dust, sawdust, processes, can preferable reduces cost, be convenient for carrying；It is supporting to be directly realized by dust on electric tool, compared with existing mitre saw, by the improvement of many aspects structure, the present invention can reach more than 95% to the dust-absorbing rate of dust, sawdust.
The technology contents of the not detailed description of the present invention are known technology.
Claims (10)
1. integral type dust sucting motor, including housing, stator is installed in housing, rotor is installed, rotor is fixed by preceding end bearing, rear end bearing and housing respectively in the middle of stator, it is characterised in that, dust exhaust apparatus is installed on the rotor, the dust exhaust apparatus includes dust suction wind box and dust suction fan blade, and the port of export of dust suction wind box and the blade-side of dust suction fan blade are relative, and dust suction fan blade is fixedly connected with the rotor；The dust suction wind box is provided with entrance point in the peripheral side of rotor, and the suction port connected with entrance point is opened up on the housing at dust suction wind box position, and dust mouth is opened up on the housing at dust suction fan blade position, and the suction port, dust mouth are arranged on housing side.
2. integral type dust sucting motor according to claim 1, it is characterised in that the housing is made up of the motor cover and end cap of arranged on left and right sides.
3. integral type dust sucting motor according to claim 1 and 2, characterized in that, the dust suction wind box is arranged between dust suction fan blade and stator, closure is installed between dust suction fan blade and dust suction wind box, closure middle setting air vent, air vent coordinates with recess in the blade-side of dust suction fan blade.
4. integral type dust sucting motor according to claim 1, it is characterised in that the suction port of the housing and/or the entrance point of dust suction wind box install security protection waffle slab.
5. mitre saw, including base, workbench, baffle plate and hand handle, the rear end mounting and fixing bracket of workbench, installation activity support on fixed support, it is characterized in that, integral type dust sucting motor as described in claim 1-4 is any is installed on the travel(l)ing rest, the end that the rotor stretches out housing is installed by the first transmission mechanism, fixed shield is installed on the housing or on travel(l)ing rest, fixed shield is provided with the rotating shaft for installing saw blade, it is located in the rotating shaft of the same side with the first transmission mechanism and the second transmission mechanism is installed, first transmission mechanism can drive the second transmission mechanism to act, the dust mouth of the housing is arranged on the tangential direction of saw blade.
6. mitre saw according to claim 5, it is characterized in that, dust storage device is installed between the suction port and workbench, the dust storage device includes storage baffle plate, storage baffle plate lower end is fixedly connected with the intermediate connecting part on rear side of the baffle plate, its upper end is arranged on suction port outside, and on the outside of saw blade, storage baffle plate front forms dust storage mouth to the storage mobilizable enclosing of baffle plate.
7. the mitre saw according to claim 5 or 6, it is characterised in that first transmission mechanism is belt pulley, the second transmission mechanism is gear, intermediate conversion part is provided between belt pulley and gear and is driven.
8. the mitre saw according to claim 5 or 6, it is characterised in that first transmission mechanism, the second transmission mechanism are belt pulley, and 2 belt pulleys are directly connected to by belt or intermediate belt, belt pulley are driven, belt pulley and belt periphery mounting strap.
9. the mitre saw according to claim 5 or 6, it is characterised in that the firstth transmission mechanism, the second transmission mechanism are gear, 2 gears engagements or is driven by idler gear.
10. the mitre saw according to claim 5 or 6, it is characterised in that the dust mouth is located at the rear end top of workbench, and dust bag is installed on dust mouth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476896.XA CN106863502B (en) | 2016-06-27 | 2016-06-27 | Integrated dust absorption motor and miter saw |
| PCT/CN2017/084913 WO2018000979A1 (en) | 2016-06-27 | 2017-05-18 | Integral dust-collecting motor and miter saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476896.XA CN106863502B (en) | 2016-06-27 | 2016-06-27 | Integrated dust absorption motor and miter saw |
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| Publication Number | Publication Date |
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| CN106863502A true CN106863502A (en) | 2017-06-20 |
| CN106863502B CN106863502B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610476896.XA Active CN106863502B (en) | 2016-06-27 | 2016-06-27 | Integrated dust absorption motor and miter saw |
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| Country | Link |
|---|---|
| CN (1) | CN106863502B (en) |
| WO (1) | WO2018000979A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113771139A (en) * | 2021-09-16 | 2021-12-10 | 浙江华丰电动工具有限公司 | Table type dust collecting saw |
| CN114474248A (en) * | 2022-02-08 | 2022-05-13 | 东北林业大学 | Cutting device for wood working of dust type prevents flying |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113385510B (en) * | 2021-05-08 | 2022-04-08 | 宜兴大平杆塔制造有限公司 | Zinc smoke collecting device for thin metal material galvanizing workshop and using method |
| CN114474257B (en) * | 2022-04-01 | 2023-05-09 | 浏阳市五联家居制造有限公司 | Anti-blocking wood processing sawdust collecting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018000979A1 (en) | 2018-01-04 |
| CN106863502B (en) | 2022-05-17 |
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