CN105024485A - Electric mechanical equipment - Google Patents
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- CN105024485A CN105024485A CN201410182083.0A CN201410182083A CN105024485A CN 105024485 A CN105024485 A CN 105024485A CN 201410182083 A CN201410182083 A CN 201410182083A CN 105024485 A CN105024485 A CN 105024485A
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- 239000002184 metal Substances 0.000 claims description 9
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Abstract
Provided is electric mechanical equipment, especially high power electric mechanical equipment. The electric mechanical equipment comprises a brushless DC motor and a working device driven by the brushless DC motor, wherein the brushless DC motor is provided with a stator and a rotor, and the rotor drives the working device to perform functions. The electric mechanical equipment can avoid the problems of equipment service life and noise caused by the brush in the motor of electric mechanical equipment.
Description
Technical field
The application relates to the electric mechanical equipment adopting brshless DC motor.
Background technology
Variously the electric mechanical equipment of power is provided to be widely used in industrial circle by motor.The motor used in conventional electric machinery equipment mostly is alternating current machine and has brushless motor.Because electrical network supplies three-phase alternating current usually, therefore adopt alternating current machine comparatively convenient.Meanwhile, ac motor structure is simple, price is low, reliable operation, easy to maintenance, is therefore most widely used.The drawbacks common that alternating current machine exists is that starting and speed adjusting performance are poor.On the other hand, the advantage of direct current machine is: speed adjusting performance is good, can realize the stepless speed regulation of uniform smooth, and have wider speed adjustable range; Starting performance is good, has larger starting torque, can realize fast starting; Control is flexible and efficient.Direct current machine is mainly used in the higher equipment of speed governing requirement.
Direct current machine includes brushless motor and brshless DC motor.Have brushless motor to adopt brush and commutator to realize the alternately change of the direction of the winding current, brshless DC motor then utilizes Hall element and control circuit to change the direction of the winding current.Have the efficiency of brushless motor higher, control comparatively simple, therefore adopt now the plant equipment of direct current machine, such as various electric tool, employing mostly be brushless motor.There is the major defect of brushless motor to be that brush easily weares and teares, need to safeguard.Brshless DC motor does not have brush, and when therefore working, noise is less, and does not need to change brush.But, because brshless DC motor price is higher, and it is high to control brushless process entails precision, therefore apply still not extensive in electric mechanical equipment, be mainly used in small-power plant equipment, such as, in hand held electric tool, small desk process equipment, and in be still difficult in high-power plant equipment adopt.
At present, high-power electric mechanical equipment usually uses alternating current machine or has brushless motor, there is the problem such as life-span, noise.
Summary of the invention
The application is intended to the high-power electric mechanical equipment of centering and transforms, and makes it to adopt brshless DC motor, to solve the problem such as equipment life, noise existed in prior art.
For this reason, according to an aspect of the application, provide a kind of electric mechanical equipment, high capacity motor tool equipment especially, it comprises: brshless DC motor; And the equipment to be driven by brshless DC motor; Wherein, brshless DC motor has stators and rotators, and described rotor drives described equipment to perform its function.
According to a kind of embodiments possible of the application, described electric mechanical equipment also comprises the transmission mechanism be arranged between described brshless DC motor and equipment, in order to the output rotary motion of described rotor is delivered to described equipment.
According to a kind of embodiments possible of the application, described transmission mechanism is belt gear or gear type transmission mechanism.
According to a kind of embodiments possible of the application, described transmission mechanism is variable speed model and/or speed-regulating type transmission mechanism.
According to a kind of embodiments possible of the application, described transmission mechanism is the rotary motion of described equipment and/or the transmission mechanism of rectilinear motion and/or vibration by the converting rotary motion of described rotor.
According to a kind of embodiments possible of the application, described rotor is the external rotor arranged around stator, described external rotor is formed the belt pulley of described belt gear or forms the gear of described gear type transmission mechanism.
According to a kind of embodiments possible of the application, described rotor is the external rotor arranged around stator, or is arranged on the internal rotor in stator.
According to a kind of embodiments possible of the application, described electric mechanical equipment also comprises frame, and electric mechanical equipment supports on the support surface by described frame.
According to a kind of embodiments possible of the application, described electric mechanical equipment is machining equipment, and it also comprises the workbench for placing workpiece to be machined.
According to a kind of embodiments possible of the application, described electric mechanical equipment is one of following equipment: bench drill, abrasive machine, knife sharpener, band saw for metal, band saw, bench saw, mitre saw, scroll saw, belt sander, sand disc machine, wood-turning machine, thicknessing and planning machine, dust arrester, piston type air compressor.
According to the application, in electric mechanical equipment, adopt brshless DC motor, eliminate brush and commutator, thus eliminate in prior art because of the problem such as equipment life, noise that the brush in motor causes.Therefore, for electric mechanical equipment field provides a kind of useful selection.
Accompanying drawing explanation
Some embodiments possible of the application are described below with reference to accompanying drawings, in the accompanying drawings:
Fig. 1 is the schematic diagram of the electric mechanical equipment according to the application;
Fig. 2 is the rough schematic view of the external-rotor-type brshless DC motor adopted in the electric mechanical equipment of the application;
Fig. 3 is the rough schematic view of the inner-rotor-type brushless direct current machine adopted in the electric mechanical equipment of the application.
Embodiment
Some embodiments possible of the application are described below in detail.
High-power electric mechanical equipment during the application relates generally to, such plant equipment is comparatively large due to volume and weight own, therefore can not being configured to hand-hold type, needing to be supported by supporting surface (such as ground) when operating.
According to the broad aspect of the application, in general, the main function components of electric mechanical equipment comprises brshless DC motor 1, optional transmission mechanism 2, equipment 3, control device 4 etc.The output rotary motion of brshless DC motor 1 is delivered to equipment 3 by transmission mechanism 2, realizes the function of expection, such as processing work 5 to make equipment move (rotation, movement, vibration etc.).Transmission mechanism has certain gearratio usually, for realizing the functions such as motion conversion, speed change, speed governing, break-in.Control device 4 at least controls the operation of brshless DC motor 1.The electric mechanical equipment of the application also comprises frame 6, for carrying above-mentioned each functional part.Frame 6 is suitable for being placed on securely on supporting surface 7, and keeps motionless relative to supporting surface when electric mechanical equipment works.Certainly, frame with roller 8, can move to diverse location to make electric mechanical equipment on the support surface.For some electric mechanical equipment for processing work of the application, need to be equipped with workbench 9 to support processed workpiece 5.
The brshless DC motor adopted in the electric mechanical equipment of the application can be external-rotor-type, also can be inner-rotor-type.
As shown in Figure 2, external-rotor-type brshless DC motor in the electric mechanical equipment of a kind of the application of may be used for comprises stator 11, the stator coil 12 carried by stator 11, around the external rotor 13 of stator 11, and is placed in the magnet 14 facing to stator 11 in external rotor 13.The output shaft (not shown) of motor is connected on external rotor 13.When stator coil 12 is energized, external rotor 13 rotates with output shaft.
As shown in Figure 3, the inner-rotor-type brushless direct current machine in the electric mechanical equipment of a kind of the application of may be used for comprises the internal rotor 21 with magnet, around the stator 22 in the outside of internal rotor, and the stator coil 23 carried by stator 22.The output shaft (not shown) of motor is connected on internal rotor 21.When stator coil 23 is energized, internal rotor 21 rotates with output shaft.
External rotor electric machine and inner rotor motor have different features, and such as, the general rotating speed of external rotor electric machine is low, torque is large, moment of inertia is large, and the general rotating speed of internal rotor is high, torque is little, precision is high.Can select according to the requirement of concrete equipment.
Introduce some exemplary of the electric mechanical equipment of the employing brshless DC motor of the application below.
Embodiment 1-bench drill
Bench drill is a kind of equipment utilizing bit bore.Bench drill according to the application mainly comprises workbench, perpendicular to the column that workbench extends, and the brshless DC motor carried by column, by brshless DC motor Direct driver or the main shaft that rotates by means of transmission mechanism drives, and the drill bit of clamping on main shaft.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.
The bench drill processing diameter of the employing brshless DC motor of the application is 8-20 inch.Power output is 100-2000W, preferably at more than 150W.For the bench drill of power output at more than 200W, the advantage of the application more easily embodies.The clamping dimension of drill bit is 13-25mm, especially 13,16,20,25mm.
Embodiment 2-abrasive machine
Abrasive machine is the equipment for grinding utilizing the various workpiece of grinding wheel grinding, instrument.Abrasive machine according to the application mainly comprises brshless DC motor, and by brshless DC motor Direct driver or the grinding wheel by means of transmission mechanism driving.Alternatively, the abrasive machine according to the application also comprises main shaft, and grinding wheel is arranged on main shaft, and main shaft is driven by brshless DC motor and rotates.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.As another kind of feasible pattern, grinding wheel is directly installed on external rotor, can cancel main shaft thus.
The power output of the abrasive machine of the employing brshless DC motor of the application is 80-3000W, preferably at more than 120W.For the abrasive machine of power output at more than 150W, the advantage of the application more easily embodies.Grinding wheel is of a size of 5-16 inch, especially 5,6,8,10,12,14,16 inches.
Embodiment 3-knife sharpener
Knife sharpener is the milling apparatus utilizing the various cutter of grinding wheel sharpening.Be similar to previously described abrasive machine, the knife sharpener according to the application mainly comprises brshless DC motor, and by brshless DC motor Direct driver or the grinding wheel by means of transmission mechanism driving.Alternatively, the knife sharpener according to the application also comprises main shaft, and grinding wheel is arranged on main shaft, and main shaft is driven by brshless DC motor and rotates.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.As another kind of feasible pattern, grinding wheel is directly installed on external rotor, can cancel main shaft thus.
The knife sharpener power output of the employing brshless DC motor of the application is 60-500W, preferably at more than 100W.For the knife sharpener of power output at more than 120W, the advantage of the application more easily embodies.Grinding wheel is of a size of 6 inches or more, especially 6,8,10 inches.
Embodiment 4-band saw for metal
Band saw for metal is the cutting equipment utilizing bands for band cutting metal material.Band saw for metal according to the application mainly comprises brshless DC motor, and the bands for band driven by means of transmission mechanism by brshless DC motor.Transmission mechanism comprises driving pulley (rotating band saw blade), belt and passive belt wheel.
According to the application, for inner rotor motor, connect driving pulley by belt, belt pulley.Or inner rotor motor connects driving pulley by gear.Or inner rotor motor directly can connect driving pulley.As a kind of embodiments possible, can adopt bi-motor structure, wherein driving pulley, the equal translator of passive belt wheel, at least one in motor is inner-rotor brushless direct current machine.
For external rotor electric machine, on external rotor, directly driving pulley can be formed.Or, belt pulley can be formed on external rotor, then connect driving pulley by belt.Or, can direct formative gear on external rotor.As a kind of embodiments possible, can adopt bi-motor structure, wherein driving pulley, the equal translator of passive belt wheel, at least one in motor is outer rotor brushless DC motor.
The power of the band saw for metal of the employing brshless DC motor of the application encloses 370-4000W, preferably at more than 450W.For the band saw for metal of power at more than 600W, the advantage of the application more easily embodies.The working width of the band saw for metal of the application is 4-12 inch, especially 4,4.5,5,6,7,7.5,9,10,12 inches.
Embodiment 5-band saw
Band saw is the cutting equipment utilizing bands for band to cut timber.Be similar to previously described band saw for metal, the band saw according to the application mainly comprises brshless DC motor, and the bands for band driven by means of transmission mechanism by brshless DC motor.Transmission mechanism comprises driving pulley (rotating band saw blade), belt and passive belt wheel.
According to the application, for inner rotor motor, connect driving pulley by belt, belt pulley.Or inner rotor motor connects driving pulley by gear.Or inner rotor motor directly can connect driving pulley.As a kind of embodiments possible, can adopt bi-motor structure, wherein driving pulley, the equal translator of passive belt wheel, at least one in motor is inner-rotor brushless direct current machine.
For external rotor electric machine, on external rotor, directly driving pulley can be formed.Or, belt pulley can be formed on external rotor, then connect driving pulley by belt.Or, can direct formative gear on external rotor.As a kind of embodiments possible, can adopt bi-motor structure, wherein driving pulley, the equal translator of passive belt wheel, at least one in motor is outer rotor brushless DC motor.
The power of the band saw of the employing brshless DC motor of the application encloses 150-3000W, preferably at more than 200W.For the band saw of power at more than 300W, the advantage of the application more easily embodies.The working width of the band saw of the application is 8-30 inch, especially 8,10,12,14,15,16,20,24,28,30 inches; Working height is 70mm-300mm.
Embodiment 6-bench saw
Bench saw is a kind of equipment utilizing saw blade cut workpiece.Bench saw according to the application mainly comprises brshless DC motor, and by brshless DC motor Direct driver or the saw blade by means of transmission mechanism driving.Alternatively, the bench saw according to the application also comprises main shaft, and saw blade is arranged on main shaft, and main shaft is driven by brshless DC motor and rotates.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.As another kind of feasible pattern, saw blade is directly installed on external rotor, can cancel main shaft thus.
The power output of the bench saw of the employing brshless DC motor of the application is 150-3000W, preferably at more than 200W.For the bench saw of power output at more than 300W, the advantage of the application more easily embodies.The saw blade diameter of the employing brshless DC motor of the application is 8-16 inch, especially 8,10,12,14,16 inches.
Embodiment 7-mitre saw (comprising cutting machine)
Be similar to bench saw, mitre saw is also a kind of equipment utilizing saw blade cut workpiece, and difference is mainly, itself be motionless during bench saw cut workpiece, cut workpiece relative to bench saw feeding, and during mitre saw cut workpiece, cut workpiece is motionless, and mitre saw advances along workpiece.
Mitre saw according to the application mainly comprises brshless DC motor, and by brshless DC motor Direct driver or the saw blade by means of transmission mechanism driving.Alternatively, the mitre saw according to the application also comprises main shaft, and saw blade is arranged on main shaft, and main shaft is driven by brshless DC motor and rotates.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.As another kind of feasible pattern, saw blade is directly installed on external rotor, can cancel main shaft thus.
The power output of the mitre saw of the employing brshless DC motor of the application is 800-2200W, preferably at more than 1000W.For the mitre saw of power output at more than 1200W, the advantage of the application more easily embodies.The saw blade diameter of the employing brshless DC motor of the application is 8-14 inch, especially 8,10,12,14 inches.
Embodiment 8-scroll saw
Scroll saw is the equipment moving back and forth sawing workpieces by saw blade.Scroll saw according to the application mainly comprises brshless DC motor, by brshless DC motor Direct driver or the crank throw rocking arm by means of transmission mechanism driving, and drives by crank throw rocking arm the saw blade moved back and forth.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to crank throw rocking arm by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to crank throw rocking arm by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to crank throw rocking arm by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.As another kind of feasible pattern, external rotor can directly form crank throw rocking arm.
The power of the scroll saw of the employing brshless DC motor of the application is 100-1000W, preferably at more than 150W.For the scroll saw of power output at more than 200W, the advantage of the application more easily embodies.The cutting level of the scroll saw of the application is 40mm-80mm; Throat depth is 13-40 inch, especially 13,16,18,20,24,26,32,40.
Embodiment 9-belt sander
Belt sander is the equipment utilizing belt sanding surface of the work.Belt sander according to the application mainly comprises brshless DC motor, by brshless DC motor Direct driver or the driving rolls by means of transmission mechanism driving, and the abrasive band driven by driving rolls.
According to the application, for inner rotor motor, connect driving rolls by belt, belt pulley.Or inner rotor motor connects driving rolls by gear.Or inner rotor motor directly can connect driving rolls.As a kind of embodiments possible, can adopt bi-motor structure, wherein driving rolls, the equal translator of passive roller, at least one in motor is inner-rotor brushless direct current machine.
For external rotor electric machine, on external rotor, directly driving rolls can be formed.Or, belt pulley can be formed on external rotor, then connect driving rolls by belt.Or, can direct formative gear on external rotor.As a kind of embodiments possible, can adopt bi-motor structure, wherein driving rolls, the equal translator of passive roller, at least one in motor is outer rotor brushless DC motor.
The power of the belt sander of the employing brshless DC motor of the application encloses 250-4000W, preferably at more than 350W.For the belt sander of power at more than 500W, the advantage of the application more easily embodies.The abrasive band width of the belt sander of the application is 1,2,3,4,5,6 inch.
Embodiment 10-sand disc machine
Sand disc machine is the equipment utilizing emery disc paper buffing work-piece surface.Sand disc machine according to the application mainly comprises brshless DC motor, by brshless DC motor Direct driver or the emery disc by means of transmission mechanism driving, and the emery disc paper driven by emery disc.
According to the application, for inner rotor motor, connect emery disc by belt, belt pulley.Or inner rotor motor connects emery disc by gear.Or inner rotor motor directly can connect emery disc.
For external rotor electric machine, on external rotor, directly emery disc can be formed.Or, belt pulley can be formed on external rotor, then connect emery disc by belt.Or, can direct formative gear on external rotor.
The power of the sand disc machine of the employing brshless DC motor of the application encloses 250-1500W, preferably at more than 330W.For the sand disc machine of power at more than 350W, the advantage of the application more easily embodies.The emery disc diameter of the sand disc machine of the application is 6,8,9,10,12 inches.
Embodiment 11-wood-turning machine
Wood-turning machine is lathe tool by rotating to carry out turning equipment to timber.Wood-turning machine according to the application mainly comprises workbench, installs brshless DC motor on the table, by brshless DC motor Direct driver or the main shaft that rotates by means of transmission mechanism drives, and the lathe tool of clamping on main shaft.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.
The power of the wood-turning machine of the employing brshless DC motor of the application is 180-1100W, preferably at more than 250W.For the wood-turning machine of power output at more than 350W, the advantage of the application more easily embodies.Radius of machining is 50-250mm; Processing length is 500-1200mm, especially 500,800,1000,1100,1200mm.
Embodiment 12-thicknessing and planning machine
Thicknessing and planning machine is the equipment by the planing tool of rotary motion, timber being carried out to turning.Thicknessing and planning machine according to the application mainly comprises workbench, installs brshless DC motor on the table, by brshless DC motor Direct driver or the main shaft that rotates by means of transmission mechanism drives, and the planing tool of clamping on main shaft.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to main shaft by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to main shaft by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.
The power of the thicknessing and planning machine of the employing brshless DC motor of the application is 800-2000W, preferably at more than 900W.For the thicknessing and planning machine of power output at more than 1000W, the advantage of the application more easily embodies.Planing tool width is 5-14 inch, especially 5,6,8,10,12,14 inches.
Embodiment 13-dust arrester
Dust arrester is the equipment of the rotating collection dust by wind wing.Dust arrester according to the application mainly comprises brshless DC motor, and by brshless DC motor Direct driver or by means of transmission mechanism drive and rotate wind wing.
According to the application, for inner rotor motor, can by the output shaft of brshless DC motor directly or be connected to wind wing by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.
For external rotor electric machine, equally can by the output shaft of brshless DC motor directly or be connected to wind wing by transmission mechanism.Transmission mechanism can be belt gear (comprising belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to wind wing by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.
The dust arrester of the employing brshless DC motor of the application comprises positive-pressure type (blowing) dust arrester and suction type (air draught) dust arrester.
For positive-pressure type (blowing) dust arrester of the application, its power is 550-2500W, preferably at more than 700W.For positive-pressure type (blowing) dust arrester of power output at more than 900W, the advantage of the application more easily embodies.Flow is 700-3000 cube m/h.
For suction type (air draught) dust arrester of the application, its power is 500-2000W, preferably at more than 650W.For suction type (blowing) dust arrester of power output at more than 800W, the advantage of the application more easily embodies.Vacuum degree is 15-30 kPa, especially 25 kPas.
Embodiment 14-piston type air compressor
Piston type air compressor utilizes moving back and forth of piston to provide compressed-air actuated equipment.Piston type air compressor according to the application mainly comprises brshless DC motor or linear electric motors, by brshless DC motor or linear motor direct drive or the crank throw that drives by means of transmission mechanism, and drives by crank throw the piston moved back and forth.
According to the application, for inner rotor motor, by the output shaft of brshless DC motor direct (direct-connected) or crank throw can be connected to by transmission mechanism.Transmission mechanism can be belt gear (belt-type comprises belt, belt pulley), gear drive etc.
For external rotor electric machine, by the output shaft of brshless DC motor direct (direct-connected) or crank throw can be connected to by transmission mechanism equally.Transmission mechanism can be belt gear (belt-type comprises belt, belt pulley), gear drive etc.As a kind of feasible pattern, external rotor directly can form belt pulley, then be connected to crank throw by belt, belt pulley.As another kind of feasible pattern, can direct formative gear on external rotor.As another kind of feasible pattern, external rotor directly can form crank throw.
For linear electric motors, the straight line of linear electric motors can be utilized to export motion Direct driver piston.
The power of the direct-connected piston type air compressor of the employing brshless DC motor of the application is 200-250W, and 550-2500W.Air displacement is 17 liters/min, and 80-450 liter/min.Maximum pressure is 6-12.5 kilogram.
The belt-type power of employing brshless DC motor of the application is 1-15KW.Air displacement is 0.1-2.0 cubic meters per minute.Maximum pressure is 7-12.5 kilogram.
Disclosed the electric mechanical equipment of some embodiments possible according to the application.Be appreciated that under the basic conception of the application, the electric mechanical equipment that other adopts brshless DC motor can be designed.
As the brshless DC motor adopted in the electric mechanical equipment of the application, can adopt the finished product motor of market supply, the relevant portion of electric mechanical equipment is for this finished product motor and adaptability design.Or, can be the special motor of electric mechanical equipment specialized designs.
For existing electric mechanical equipment, can modify to it, its motor originally adopted is replaced with brshless DC motor, control device is revised accordingly, and the type of drive realized by transmission mechanism be only slightly different.Therefore, easily repack existing electric mechanical equipment into electric mechanical equipment according to the application, and the function of equipment itself can improve, be at least maintain.
Brshless DC motor in the electric mechanical equipment of the application can utilize normal mains-supplied.As a kind of embodiments possible, brshless DC motor can adopt low-voltage dc power supply (such as rechargeable battery, storage battery etc.) to power, to be applicable to the place not having civil power, and such as building site, field etc.
By have employed brshless DC motor, plurality of advantages can be brought for the electric mechanical equipment of the application.First, do not have brush and commutator in brshless DC motor, when therefore working, noise is less, Maintenance free, and the life-span is longer.Further, the small volume of brshless DC motor, efficiency higher (especially under low speed), efficient region is large, power and torque density high.In addition, the characteristic of low voltage of brshless DC motor is good, and torque overload characteristic is strong, and starting torque is large, and starting current is little.Meanwhile, brshless DC motor has DC frequency-changing characteristic, and therefore speed governing width, running efficiency, low speed torque, rotary speed precision etc. are all better.
Although describe the application with reference to concrete execution mode here, the scope of the application is not limited to shown details.When not departing from the general principle of the application, various amendment can be made for these details.
Claims (10)
1. an electric mechanical equipment, high capacity motor tool equipment especially, comprising:
Brshless DC motor; And
The equipment driven by brshless DC motor;
Wherein, brshless DC motor has stators and rotators, and described rotor drives described equipment to perform its function.
2. electric mechanical equipment as claimed in claim 1, also comprises the transmission mechanism be arranged between described brshless DC motor and equipment, in order to the output rotary motion of described rotor is delivered to described equipment.
3. electric mechanical equipment as claimed in claim 2, wherein, described transmission mechanism is belt gear or gear type transmission mechanism.
4. electric mechanical equipment as claimed in claim 2 or claim 3, wherein, described transmission mechanism is variable speed model and/or speed-regulating type transmission mechanism.
5. the electric mechanical equipment according to any one of claim 2 to 4, wherein, described transmission mechanism is the rotary motion of described equipment and/or the transmission mechanism of rectilinear motion and/or vibration by the converting rotary motion of described rotor.
6. electric mechanical equipment as claimed in claim 3, wherein, described rotor is the external rotor arranged around stator, described external rotor is formed the belt pulley of described belt gear or forms the gear of described gear type transmission mechanism.
7. the electric mechanical equipment according to any one of claim 1 to 5, wherein, described rotor is the external rotor arranged around stator, or is arranged on the internal rotor in stator.
8. the electric mechanical equipment according to any one of claim 1 to 7, also comprises frame, and electric mechanical equipment supports on the support surface by described frame.
9. the electric mechanical equipment according to any one of claim 1 to 8, wherein, described electric mechanical equipment is machining equipment, and it also comprises the workbench for placing workpiece to be machined.
10. electric mechanical equipment as claimed in any one of claims 1-9 wherein, wherein, described electric mechanical equipment is one of following equipment: bench drill, abrasive machine, knife sharpener, band saw for metal, band saw, bench saw, mitre saw, scroll saw, belt sander, sand disc machine, wood-turning machine, thicknessing and planning machine, dust arrester, piston type air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182083.0A CN105024485A (en) | 2014-04-30 | 2014-04-30 | Electric mechanical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182083.0A CN105024485A (en) | 2014-04-30 | 2014-04-30 | Electric mechanical equipment |
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| CN105024485A true CN105024485A (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410182083.0A Pending CN105024485A (en) | 2014-04-30 | 2014-04-30 | Electric mechanical equipment |
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| CN (1) | CN105024485A (en) |
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| CN108789647A (en) * | 2018-07-03 | 2018-11-13 | 芜湖博康汽车饰件有限公司 | A kind of mechanical equipment processing machine table |
| CN108994630A (en) * | 2018-08-09 | 2018-12-14 | 河南沪江电缆有限公司 | A kind of electric mechanical equipment |
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