CN110270930A - A kind of polishing machine - Google Patents
A kind of polishing machine Download PDFInfo
- Publication number
- CN110270930A CN110270930A CN201910625432.4A CN201910625432A CN110270930A CN 110270930 A CN110270930 A CN 110270930A CN 201910625432 A CN201910625432 A CN 201910625432A CN 110270930 A CN110270930 A CN 110270930A
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- motor
- polishing machine
- balance weight
- tray
- balance
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- 238000005498 polishing Methods 0.000 title claims abstract description 59
- 230000002708 enhancing effect Effects 0.000 claims description 30
- 230000008859 change Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000005291 magnetic effect Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 210000000006 pectoral fin Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/042—Balancing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention provides a kind of polishing machines, belong to field of mechanical technique.It solves the problems, such as that existing polishing machine weak heat-dissipating, rotation are jiggly.This structure improved polishing machine, including shell and it is set to the intracorporal motor of shell, balance weight is fixed on machine shaft, which is characterized in that the surface of the balance weight towards motor side is provided with the wake turbulence slot of indent, is provided with air outlet on the shell.This structure improved polishing machine rapid heat dissipation and stability of rotation.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of machined part, especially a kind of polishing machine.
Background technique
Polishing machine is also referred to as grinder, is commonly used as mechanical polishing, polishing and waxing.Its working principle is that: motor
Drive the sponge that is mounted on polishing machine or wool polishing disk high speed rotation, due to polishing disk and polishing agent collective effect and with to
It throws surface to rub, and then can reach removal lacquer painting pollution, oxide layer, the purpose of shallow trace.
A kind of hand-held omnibus polisher, the polishing machine are disclosed in the patent of Patent No. 201820889805.X
Be provided with motor in vivo, motor dump by shaft and outside with it is interior dump be fixedly connected with and drive it is outer dump and interior rotation of dumping, in fact
It now polishes, specifically, motor is arranged in shell, and inside dumping and dumping outside is arranged outside shell.The polishing machine passes through two
The setting of through-hole is able to achieve the different stalls adjustment of polishing machine, and Lai Shixian is interior to dump or dumped outside to realize specific polishing.
Above-mentioned polishing machine is more to drive polishing disk to rotate coaxially realization polishing by the direct rotation of machine shaft.On the market there are also
Polishing machine is to realize polishing by connecting a balance weight in machine shaft output end, equally has preferable polishing effect.
It is inevitable during motor runs at high speed although above-mentioned polishing machine is barely satisfactory in grinding effect
The problem of the motor feels hot, is carried out in area.If polishing machine short time intermittent work is substantially without big problem, in case of needed for a long time not
The case where operating intermittently be easy to cause motor temperature excessively high, and motor is mounted in enclosure interior, and enclosure interior weak heat-dissipating is long
This be easy to cause the motor to burn out or damage in the past.The prior art also has to be made improvements thus, for example, conventional way be
Small-sized fans are set inside motor, one kind is such as disclosed in the patent of Patent No. 201610543590.1 and climbs wall sanding and polishing
Machine accelerates gas flowing to help to radiate by being internally provided with fan in polishing machine by fan.But electric fan is being agitated
It is easy to be shaken by airflow influence in the process, easily causes rotation unstable.Also you at housing sidewall setting heat wave pastes in routine
Etc. structures help it is thermally conductive, but be easy to cause engine volume increase and cost greatly increase.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of polishing machine is proposed, solution
Technical problem is how to accelerate the heat dissipation of polishing machine and guarantee stability of rotation.
Object of the invention can be realized by the following technical scheme:
A kind of polishing machine, including shell and it is set to the intracorporal motor of shell, balance weight, feature are fixed on machine shaft
It is, the surface of the balance weight towards motor side is provided with the wake turbulence slot of indent, is provided with air outlet on the shell.
Being provided on balance weight in this patent has the wake turbulence slot being arranged towards motor, and wake turbulence slot has cavity, so that
Entire balance weight is low between surrounding senior middle school at this, that is, balance weight remaining position in addition to cavity under identical equilibrium condition
Thickness can be done thicker, and the outer edge of the balance weight can have more works during motor is rotated with dynamic balance weight
It is contacted with area with air and drives air that turbulent flow occurs to balance weight side, accelerated speed air flow and accelerate heat exchange.Electricity
A degree of shaking inevitably occurs during machine band dynamic balance weight rotation, the shaking is so that balance weight is occurring
It drives cavity that a degree of front-rear direction occurs during rotation slightly to shake along machine shaft direction, shake more outward
It is more obvious.And this case is that have wake turbulence slot towards motor side, the eminence of the curved cavity and cavity side forms class at this time
Flippers structure simultaneously can stir power towards motor side to air generation, can in conjunction with the turbulent motion that balance weight side occurs
By the motive force along machine shaft direction gas is flowed further towards motor drive direction, accelerates motor side air stream
It moves and generates heat exchange.And the present invention is also provided with the air outlet through shell, therefore air in the cavity wall of motor accommodating chamber
It can be discharged in time after exchanging heat with motor, to realize the purpose for accelerating motor radiating.
In addition to this, due to curved cavity enable balance weight remove cavity at outer edge thickness do it is thicker, i.e.,
The side of balance weight can have stronger intensity during entire balance weight rotates, and be not easy the fluctuation due to air-flow and produce
Raw further equilibrium problem, so can also ensure that certain smoothness.
In above-mentioned polishing machine, the balance weight includes ontology and the balance portion for protruding from outer body wall, described to stir
Chute is opened in balance portion.Comparatively more positioned at the peripheral side of balance weight and during rotation balance portion, balance portion
Rotation amplitude is bigger.This patent by being arranged wake turbulence slot in balance portion can guarantee that motor is made full use of to rotate bring
It inevitably shakes, so that wake turbulence slot is bigger along the shaking degree of motor circumferential direction, guarantees more rapidly to drive gas direction
Motor movement and the heat dissipation for accelerating motor.
In above-mentioned polishing machine, the balance portion is plate-like or blocky, and the balance portion includes the enhancing positioned at middle part
The thickness of section and the enhancing section is greater than the thickness of remaining position of balance portion.Plate or block-like balance portion shape are more regular,
It is also more stable with the contact surface of air during the motion, it can guarantee the stationarity of movement.In addition, will enhancing in this patent
The thickness of section is set greater than the thickness of remaining position, and enhancing section and remaining position form a difference in height, i.e., enhancing section with
Remaining position connecting place forms a step surface, so that gas is from balance during balance weight is rotated along machine shaft
Cocurrent is flowed through remaining position to that can impact step surface when enhancing section and change gas flow in portion, accelerates gas flowing speed
Degree helps to radiate.
In above-mentioned polishing machine, the side of the fan-shaped plate in the balance portion and balance portion far from ontology is arc-shaped side,
The balance portion includes that two weakened sections and two weakened sections being connected with enhancing section are symmetrical set in enhancing section two
Side.Balance portion is arranged to the weakened section with symmetrical structure and the enhancing section of thicker degree is arranged to guarantee in centre
Stationarity in rotation process avoids shaking excessively and leading to shakiness.And the two sides for enhancing section are both provided with weakened section and can protect
Demonstrate,prove the motor whether rotate forward or invert gas can be flowed through from one of weakened section and flow to enhancing section when can
It impacts the step surface between enhancing section and weakened section and changes gas flow, increase the area of impact, accelerate gas flowing speed
Degree helps to radiate.
In above-mentioned polishing machine, above-mentioned wake turbulence slot is offered in each weakened section, the wake turbulence slot reclines increasing
The notch area of strong section setting and wake turbulence slot is greater than the 2/3 of weakened section top surface area.By being offered in two weakened sections
Wake turbulence slot can be helped to improve the effect of wake turbulence and guarantee that the both ends stress in fan-shaped balance portion is substantially uniform consistent, guarantee steady.It stirs
Chute, which reclines, enhances section setting that is, making a side channel of the step surface for enhancing section and weakened section connecting place as entire groove
Wall, thus, it is possible to make the area of the step surface bigger, so that stirring effect becomes apparent.It is preferred that by the notch area of wake turbulence slot
It is set greater than the 2/3 of weakened section top surface area, so that the wake turbulence effect of weakened section is more significant.
In above-mentioned polishing machine, the air outlet is in long strip and is arranged in machine shaft and balance weight connecting place, institute
The quantity for stating air outlet is at least two and is circumferentially arranged along motor.Air outlet is arranged in machine shaft and balance weight connecting place
Cavity wall on so that air outlet is unlikely to too long at a distance from wake turbulence slot, can guarantee that obvious convection current is generated at two accelerates gas
Flowing velocity help is radiated, and preferably air outlet is multiple and is circumferentially uniformly arranged along motor.And the air outlet of strip can make
It is relatively narrow to obtain air port, being easy, which makes gas generate change in flow here, accelerates gas flow rates, and by the air outlet of the strip
Its actual internal area of the gas of outflow changes, and is also able to achieve reactive muffling, prevents a large amount of noises.
In above-mentioned polishing machine, the shell with motor in the middle part of be additionally provided with auxiliary air port at relative position, it is described auxiliary
Air port is in long strip and is arranged in an oblique way with air outlet.The setting in auxiliary air port can help to further speed up gas flow rates side
Help heat dissipation.In addition, strip and be arranged in an oblique way with air outlet in this patent by the way that auxiliary air port is also provided with growth, can by from
The gas flow direction of auxiliary air port outflow and the gas flow direction flowed out from air outlet are inconsistent, in turn result in enclosure interior gas
The shunting direction of body is also inconsistent, and help drives internal gas to realize that turbulent flow accelerates gas flow rates, and can also improve gas
Body radiates along motor Radial Flow and further occurrence heat exchange help on the inside of motor.
In above-mentioned polishing machine, the motor includes motor casing and the rotor that is arranged in motor casing, the motor casing
Permanent magnet there are four also setting up between rotor, the permanent magnet is connected with motor casing and circumferentially evenly distributed along rotor, described
There is gap between rotor and permanent magnet.By four permanent magnets of setting in this patent, compared to two traditional permanent magnets,
Guarantee the more miniaturization that entire motor can be done under the premise of magnetism is identical, guarantees that electric machine structure is compact, so that whole
A polishing machine is able to achieve miniaturization.
In above-mentioned polishing machine, the motor is additionally provided with end cap in one end far from balance weight, sets on the end cap
Set there are two the wire holder that is in the form of a column, the length direction and machine shaft of the wire holder be perpendicular and two wire holders between be in
It is vertically arranged.Due to setting four for permanent magnet in this patent, so two wire holders are arranged to be mutually perpendicular to, make it possible to
It is enough to guarantee preferably magnetic effect, prevent magnetic interference, guarantees motor job stability.
In above-mentioned polishing machine, the balance weight is additionally provided with output shaft, the throwing in one end far from machine shaft
Ray machine includes tray, and the tray is fixedly connected with output shaft, and the tray is provided with edge in the side towards motor and holds
The fin that disk radially extends is connect, the quantity of the fin is at least two and along tray circumferential array, and the fin protrudes from
The thickness for accepting panel surface is gradually decreased from tray Inside To Outside.This patent in side of the tray towards motor by setting
Be equipped with fin, fin can reinforce the stability of tray, prevent tray shake during rotation it is excessive cause it is unstable.
And in the present invention also the fin be arranged to it is outer it is thin it is interior after so that fin center of gravity as far as possible is in interior stability of rotation.In addition, fin and flat
The distance between weighing apparatus block is gradually increased outward by interior, and shaking amplitude is bigger in the course of rotation for the periphery of balance weight, this sets
Set can prevent in use balance weight interfered with tray, guarantee stability of rotation.
Compared with prior art, the present invention has the advantage that
1, there is the wake turbulence slot being arranged towards motor by being provided on balance weight, so that entire balance weight is four at this
Low between Zhou Gaozhong, the thickness at balance weight remaining position in addition to cavity can be done thicker under identical equilibrium condition, in motor
The outer edge of the balance weight can have more active areas to contact and drive with air during with dynamic balance weight rotation
To balance weight side turbulent flow occurs for air, accelerates speed air flow and accelerates heat exchange.
2, a degree of shaking inevitably occurs during rotating using motor band dynamic balance weight, and combines
The eminence of the curved cavity of wake turbulence slot and cavity side forms class flippers structure and can generate to air and pushes away along machine shaft
Power, the turbulent motion for enabling balance weight side to occur make gas further by the motive force along machine shaft direction
It is flowed towards motor drive direction, motor side air is accelerated to flow and generate heat exchange.Air can lead to after exchanging heat with motor
It crosses air outlet to be discharged in time, realizes and accelerate motor radiating.
3, since the outer edge thickness that curved cavity enables balance weight to remove at cavity makees thicker, i.e. balance weight
Side can have stronger intensity during entire balance weight rotates, and be not easy the fluctuation due to air-flow and generate further
Equilibrium problem, so can also ensure that certain smoothness.
Detailed description of the invention
Fig. 1 is the schematic perspective view of this polishing machine.
Fig. 2 is the cross-sectional view of this polishing machine.
Fig. 3 is the partial perspective cutaway view of this polishing machine.
Fig. 4 is the schematic perspective view of balance weight
Fig. 5 is the front view of balance weight.
Fig. 6 is the sectional view along A-A of Fig. 2.
Fig. 7 is the schematic perspective view of end cap.
Fig. 8 is the schematic perspective view of tray.
In figure, 1, shell；11, air outlet；12, auxiliary air port；2, motor；21, machine shaft；22, motor casing；23, rotor；
24, permanent magnet；25, end cap；251, wire holder；3, balance weight；31, ontology；32, balance portion；321, enhance section；322, it weakens
Section；33, wake turbulence slot；4, output shaft；5, tray；51, fin；6, battery pack；7, sponge disc.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1 and Figure 2, a kind of polishing machine, including shell 1 and the motor 2 being set in shell 1, which is used
Four-pole permanent magnet direct current motor, and powered with battery pack 6.Battery pack 6 is connect with power switch, and motor 2 is connect with control panel, power supply
Switch and speed regulation connection, speed regulation route are connect with motor 2.When battery pack 6 is full of being electrically interposed in complete machine, opening power supply is opened
It closes, motor 2 will work rotation.Turn at this time adjusts the speed knob, and it is any that motor 2 can change revolving speed under the action of adjusting the speed wiring board
It adjusts.Specifically, balance weight 3, balance weight 3 and the output shaft for being furnished with bearing are fixed on the machine shaft 21 in the present embodiment
4 connections, output shaft 4 and tray 5, sponge disc 7 etc. connect and are pushed down with screw.3 turns of dynamic balance weight of band of the rotation of machine shaft 21
Dynamic and then balance weight 3 drives tray 5 and sponge disc 7 etc. to make beat or rotary motion realization polishing by output shaft 4.
The present invention is provided with air outlet 11 and auxiliary air port 12 through shell 1 in the cavity wall of 2 accommodating chamber of motor, therefore empty
Gas can be discharged in time after exchanging heat with motor 2, to realize the purpose accelerating motor 2 and radiating.Specifically as shown in Figure 1,
Air outlet 11 is in long strip and is arranged in the cavity wall of machine shaft 21 and 3 connecting place of balance weight, 11 energy of air outlet of strip
Enough so that air port is relatively narrow, being easy, which makes gas generate change in flow here, accelerates gas flow rates, and going out by the strip
Its actual internal area of the gas of the outflow of air port 11 changes, and is also able to achieve reactive muffling, prevents a large amount of noises.Air outlet
11 quantity is at least two and along the circumferential setting of motor 2.
In addition, shell 1 with 2 middle part relative position of motor at be additionally provided with auxiliary air port 12, auxiliary air port 12 it is in long strip and
It is arranged in an oblique way with air outlet 11.The setting in auxiliary air port 12 can help to further speed up gas flow rates help and radiate.This
It, can be by being flowed from auxiliary air port 12 by the way that auxiliary air port 12 is also provided with growth strip and is arranged in an oblique way with air outlet 11 in patent
Gas flow direction out and the gas flow direction flowed out from air outlet 11 are inconsistent, in turn result in 1 internal gas of shell
It is also inconsistent to shunt direction, help drives internal gas to realize that turbulent flow accelerates gas flow rates, and can also improve gas edge
2 Radial Flow of motor radiates with 2 inside further occurrence heat exchange of motor help.
As shown in Figures 3 to 5, balance weight 3 includes ontology 31 and the balance portion for protruding from 31 lateral wall of ontology in this patent
32, balance weight 3 be in it is similar cylindric, balance portion 32 is plate-like and is integrally formed with ontology 31.Specifically, balance portion 32 is in fan
The side of shape plate and balance portion 32 far from ontology 31 is arc-shaped side, and balance portion 32 includes the enhancing section 321 positioned at middle part and increases
The thickness of strong section 321 is greater than the thickness of 32 remaining position of balance portion.32 shape of plate-shaped weight portion is more regular, during the motion
It is also more stable with the contact surface of air, it can guarantee the stationarity of movement.
In addition, the thickness for enhancing section 321 to be set greater than to the thickness of remaining position in this patent, enhance section 321 and its
Remaining position forms a difference in height, i.e., a step surface is formed in enhancing section 321 and remaining position connecting place, so that in balance weight
3 along machine shaft 21 rotate during, gas from remaining position of balance portion 32 flowing through cocurrent to enhancing section 321 when energy
It enough impacts step surface and changes gas flow, accelerate gas flow rates help and radiate.
As shown in Figure 4, Figure 5, balance portion 32 further includes two weakened sections 322 being connected with enhancing section 321 and two weak
Change section 322 to be symmetrical set in enhancing 321 two sides of section.Balance portion 32 is arranged to the weakened section 322 with symmetrical structure and is incited somebody to action
The intermediate stationarity that can guarantee during rotation is arranged in the enhancing section 321 of thicker degree, avoids shaking excessively and causing
It is unstable.And the two sides for enhancing section 321 are both provided with weakened section 322 can guarantee that the motor 2 whether rotates forward or invert gas
It can be flowed through from one of weakened section 322 and enhancing section 321 and weakened section can be impacted when flowing to enhancing section 321
Step surface between 322 simultaneously changes gas flow, increases the area of impact, accelerates gas flow rates help and radiates.
A degree of shaking inevitably occurs during motor 2 is rotated with dynamic balance weight 3, which makes
Obtain balance weight 3 drives a degree of front-rear direction of cavity generation small size along 21 direction of machine shaft during rotating
Vibration, vibration is more obvious more outward.Further, this patent adequately utilizes the characteristic, opens up in each weakened section 322
There is wake turbulence slot 33, so that entire weakened section 322 is low between surrounding senior middle school at this.And the process rotated in motor 2 with dynamic balance weight 3
In the balance weight 3 outer edge can have more active areas to contact with air and drive air to 3 side of balance weight send out
Raw turbulent flow accelerates speed air flow and accelerates heat exchange.The eminence of the curved cavity and cavity side forms class flippers knot at this time
Structure simultaneously can be to air generation along the motive force of machine shaft 21, and the turbulent motion for combining 3 side of balance weight to occur at this time can
By the motive force along 21 direction of machine shaft gas is flowed further towards 2 direction of motor, accelerates 2 side of motor empty
Flow of air simultaneously generates heat exchange.This patent is by being arranged wake turbulence slot 33 in balance portion 32, and balance portion 32 is comparatively more
Positioned at the peripheral side of balance weight 3 and the rotation amplitude in balance portion 32 during rotation it is bigger, can guarantee to make full use of motor 2
Rotation bring is inevitably shaken, so that wake turbulence slot 33 is bigger along the circumferential shaking degree of motor 2, is guaranteed more rapid
It drives gas to move towards motor 2 and accelerates the heat dissipation of motor 2.
Further, wake turbulence slot 33 reclines the notch area for enhancing the setting of section 321 and wake turbulence slot 33 greater than in weakened section 322
The 2/3 of surface area.By offering in two weakened sections 322, wake turbulence slot 33 can help the effect for improving wake turbulence and guarantee is fanned
The both ends stress in shape balance portion 32 is substantially uniform consistent, guarantees steady.It is preferred that the notch area of wake turbulence slot 33 is set greater than
The 2/3 of 322 top surface area of weakened section, so that the wake turbulence effect of weakened section 322 is more significant.
As shown in Fig. 3, Fig. 8, balance weight 3 is additionally provided with output shaft 4 in one end far from machine shaft 21, and polishing machine includes
Tray 5, tray 5 are fixedly connected with output shaft 4, and tray 5 is provided in the side towards motor 2 to be prolonged along 5 radial direction of tray
The fin 51 stretched, the quantity of fin 51 are at least two and along 5 circumferential arrays of tray, and fin 51 protrudes from 5 surface of tray
Thickness gradually decreased from 5 Inside To Outside of tray.It is convex by being provided with fin 51 in side of the tray 5 towards motor 2
Rib 51 can reinforce the stability of tray 5, prevent tray 5 shake during rotation it is excessive cause it is unstable.And fin
51 be arranged to it is outer it is thin it is interior after so that the center of gravity as far as possible of fin 51 is in interior stability of rotation.In addition, between fin 51 and balance weight 3
Distance is gradually increased outward by interior, and shaking amplitude is bigger in the course of rotation for the periphery of balance weight 3, which can prevent
Balance weight 3 is interfered with tray 5 in use, guarantees stability of rotation.
As shown in Fig. 3, Fig. 6, motor 2 includes motor casing 22 and the rotor 23 being arranged in motor casing 22,22 He of motor casing
Permanent magnet 24 there are four also setting up between rotor 23, permanent magnet 24 is connected with motor casing 22 and circumferential evenly distributed along rotor 23,
There is gap between rotor 23 and permanent magnet 24.By four permanent magnets of setting in this patent, compared to two traditional permanent magnetism
Body 24, the more miniaturization that can make entire motor 2 under the premise of guaranteeing magnetic identical guarantee that motor 2 is compact-sized, into
And entire polishing machine is made to be able to achieve miniaturization.
As shown in Fig. 3, Fig. 7, motor 2 is additionally provided with end cap 25 in one end far from balance weight 3, is provided with two on end cap 25
A wire holder 251 being in the form of a column, the length direction and machine shaft 21 of wire holder 251 be perpendicular and two wire holders 251 between
It is vertical setting.Due to setting four for permanent magnet in this patent, so two wire holders 251 are arranged to be mutually perpendicular to,
Make it possible to guarantee preferably magnetic effect, prevent magnetic interference, guarantees 2 job stability of motor.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although shell 1, air outlet 11, auxiliary air port 12, motor 2, machine shaft 21, motor casing is used more herein
22, rotor 23, permanent magnet 24, end cap 25, wire holder 251, balance weight 3, ontology 31, balance portion 32, enhancing section 321, weakened section
322, the terms such as wake turbulence slot 33, output shaft 4, tray 5, fin 51, battery pack 6, sponge disc 7, but be not precluded using other
A possibility that term.The use of these items is only for be more convenient to describe and explain essence of the invention；They are explained
It at any additional limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of polishing machine is fixed with flat including shell (1) and the motor (2) being set in shell (1) on machine shaft (21)
It weighs block (3), which is characterized in that the surface of the balance weight (3) towards motor (2) side is provided with the wake turbulence slot (33) of indent, institute
It states and is provided with air outlet (11) on shell (1).
2. polishing machine according to claim 1, which is characterized in that the balance weight (3) includes ontology (31) and protrudes from
The balance portion (32) of ontology (31) lateral wall, the wake turbulence slot (33) are opened on balance portion (32).
3. polishing machine according to claim 2, which is characterized in that the balance portion (32) is plate-like or blocky, described flat
Weighing apparatus portion (32) includes positioned at the enhancing section (321) at middle part and the thickness of enhancing section (321) is greater than balance portion (32) remaining position
The thickness set.
4. polishing machine according to claim 3, which is characterized in that the fan-shaped plate of the balance portion (32) and balance portion
(32) side far from ontology (31) is arc-shaped side, and the balance portion (32) is connected with enhancing section (321) weak including two
Change section (322) and two weakened sections (322) are symmetrical set in enhancing section (321) two sides.
5. polishing machine according to claim 4, which is characterized in that offered on each weakened section (322) above-mentioned
Wake turbulence slot (33), the wake turbulence slot (33) recline the notch area for enhancing section (321) setting and wake turbulence slot (33) greater than weakened section
(322) the 2/3 of top surface area.
6. according to claim 1 to polishing machine described in 5 any one, which is characterized in that the air outlet (11) is in long strip
And setting, in machine shaft (21) and balance weight (3) connecting place, the quantity of the air outlet (11) is at least two and along motor
(2) circumferential setting.
7. polishing machine according to claim 6, which is characterized in that the shell (1) with motor (2) in the middle part of relative position
Place is additionally provided with auxiliary air port (12), and the auxiliary air port (12) is in long strip and is arranged in an oblique way with air outlet (11).
8. according to claim 1 to polishing machine described in 5 any one, which is characterized in that the motor (2) includes motor casing
(22) and rotor (23) in motor casing (22) is set, also set up between the motor casing (22) and rotor (23) there are four forever
Magnet (24), the permanent magnet (24) are connected with motor casing (22) and along circumferential evenly distributed, the rotors (23) of rotor (23)
There is gap between permanent magnet (24).
9. polishing machine according to claim 8, which is characterized in that the motor (2) far from balance weight (3) one end also
It is provided with end cap (25), is arranged on the end cap (25) there are two the wire holder (251) being in the form of a column, the wire holder (251)
Length direction and machine shaft (21) is perpendicular and two wire holders (251) between be vertical setting.
10. according to claim 1 to polishing machine described in 5 any one, which is characterized in that the balance weight (3) is far from electricity
One end of machine shaft (21) is additionally provided with output shaft (4), and the polishing machine includes tray (5), the tray (5) and output
Axis (4) is fixedly connected with, and the tray (5) is provided with the fin radially extended along tray (5) in the side towards motor (2)
(51), the quantity of the fin (51) is at least two and along tray (5) circumferential array, and the fin (51) protrudes from undertaking
The thickness on disk (5) surface is gradually decreased from tray (5) Inside To Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910625432.4A CN110270930A (en) | 2019-07-11 | 2019-07-11 | A kind of polishing machine |
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| CN113857994A (en) * | 2021-10-19 | 2021-12-31 | 宁波众创工具有限公司 | Operation method of electric tool |
| CN114346856A (en) * | 2022-01-21 | 2022-04-15 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Geological exploration rock sample cleaning and grinding device |
| EP4059662A1 (en) | 2021-03-18 | 2022-09-21 | X'Pole Precision Tools Inc. | Grinding machine tool for reducing hotness of casing |
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