CN110039442A - Milling tools - Google Patents
Milling tools Download PDFInfo
- Publication number
- CN110039442A CN110039442A CN201910036552.0A CN201910036552A CN110039442A CN 110039442 A CN110039442 A CN 110039442A CN 201910036552 A CN201910036552 A CN 201910036552A CN 110039442 A CN110039442 A CN 110039442A
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- China
- Prior art keywords
- motor
- deck assembly
- bottom deck
- jackshaft
- milling tools
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000003801 milling Methods 0.000 title claims abstract description 30
- 238000005498 polishing Methods 0.000 claims abstract description 65
- 230000005484 gravity Effects 0.000 claims abstract description 43
- 239000004576 sand Substances 0.000 claims description 32
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 27
- 238000001816 cooling Methods 0.000 description 23
- 230000013011 mating Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 11
- 239000000428 dust Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 244000137852 Petrea volubilis Species 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 241001416181 Axis axis Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
-
- 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
-
- 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
- B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
-
- 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
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
-
- 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
- B24B41/02—Frames; Beds; Carriages
-
- 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 relates to a kind of milling tools, belong to field of power tools, the milling tools includes main part and the bottom deck assembly that is arranged on main part, main part includes shell, motor, it is offset to the jackshaft of motor side, shell includes the main casing to store motor and jackshaft, bottom deck assembly is set to the lower end of jackshaft, motor drives bottom deck assembly so that bottom deck assembly carries out polishing work, bottom deck assembly includes the polishing base plate of polishing work, milling tools further includes for the energy supply component to powered motors, the axis of jackshaft and the axis interval of motor are arranged, and motor and energy supply components distribution are in the two sides of jackshaft.The center of gravity that the milling tools can avoid complete machine is biased to side, shakes bottom deck assembly at work small, and make milling tools in static condition, is easy to put, avoids toppling over, and more comfortable in operation.
Description
Technical field
The present invention relates to a kind of milling tools, belong to field of power tools.
Background technique
Existing sander includes circle sand machine and plate sand etc., wherein the jackshaft polishing base plate of round sand machine is in substantially
Between axis axis work, for being ground larger amount of material, such as roughly grinding.The autobiography of the polishing base plate of plate sand moves quilt
Limitation, therefore, polishing base plate are in make the movement of plate sand around the axis of jackshaft substantially, that is, are merely able to do the track fortune of revolution rule
It is dynamic, it is suitable for being ground small amount of material, such as retrofit or finishing.
Sander generally comprises main part and the bottom deck assembly that is arranged on the main part, main part include motor, with
Motor connection jackshaft, the main casing to store motor and jackshaft, the gripping shell that main casing side is set and
The power supply unit of electric energy is provided to sander.Since the usual weight of motor will account for whole 1/3 or so of big sander, so,
The unbalanced phenomenon of the generally existing weight of current sander, when sander is stood, sander will topple over, and work as sander
After starting, due to the unbalanced problem of weight, so, it generally requires people and increases control force to prevent sander from tilting to side.
Summary of the invention
It is easy to put and operate more comfortable milling tools the purpose of the present invention is to provide one kind.
In order to achieve the above objectives, the invention provides the following technical scheme: a kind of milling tools, including main part and setting exist
Bottom deck assembly on the main part, the main part include shell, motor, the jackshaft for being offset to the motor side, institute
Stating shell includes the main casing to store the motor and the jackshaft, and the bottom deck assembly is set to the jackshaft
Lower end, for the motor driving bottom deck assembly so that the bottom deck assembly carries out polishing work, the bottom deck assembly includes polishing work
The polishing base plate of work, the milling tools further include for the energy supply component to the powered motors, the axis of the jackshaft
It is arranged with the axis interval of the motor, and the motor and the energy supply components distribution are in the two sides of the jackshaft.
Further, the shell further includes that setting is angled close to jackshaft one end and with main casing in the main casing
The gripping shell of setting, the energy supply component, main casing are distributed in the both ends for holding shell.
Further, the motor and the two sides for holding shell and being distributed in the jackshaft.
Further, the center of gravity of the main part is located between the axis of the motor and the axis of jackshaft.
Further, the energy supply component is battery pack, and the battery pack quality is between 333g to 630g, the polishing
The center of gravity of tool is located at the side of the separate motor and the projection in polishing base plate direction is fallen into polishing base plate.
Further, the energy supply component is battery pack, and the battery pack quality is between 333g to 630g, the polishing
The center of gravity of tool is located at side of the jackshaft far from motor and the projection in polishing base plate direction is fallen into polishing base plate.
Further, the energy supply component is battery pack, and the battery pack quality is greater than 333g, and with battery pack quality
Increase, the center of gravity of the milling tools is from the position being located between the axis of motor and the axis of jackshaft gradually to close to electricity
The direction of Chi Bao is mobile.
Further, the axis of the jackshaft is parallel with the axis of the motor.
Further, the bottom deck assembly include can by motor drive rotation bottom plate shaft, the polishing base plate with
It is driven by bottom plate shaft to carry out polishing work, the rotation axis of the bottom plate shaft and the axis co-axial line of the jackshaft,
And the axis interval of the axis of the jackshaft and the motor is arranged, the motor and the gripping shell are distributed in described
Between axis two sides.
Further, the main casing is connect to the main casing with the gripping shell far from the one end for holding shell
The distance of one end is between 70mm to 80mm.
Further, end where the main casing of the main part exists to the main part far from the distance of main casing one end
Between 185mm to 220mm.
Further, the bottom deck assembly is mounted at the main part, and the bottom deck assembly is circle sand bottom
Any one in board group part or plate sand bottom deck assembly.
Further, the milling tools further includes the position-limit foot between the main part and bottom deck assembly, described
Position-limit foot is optionally connect to limit the polishing base plate of the bottom deck assembly around the jackshaft with the bottom deck assembly
Axis spinning motion.
Further, the main part further includes exporting for the power of the motor to be transferred to the torque of bottom deck assembly
Portion and the driving section that the power of the motor is transferred to torque output section, the driving section include being driven by the motor
First driving wheel and the second driving wheel by the first transmission wheel drive, and the rotation axis of first driving wheel and the
The rotation axis interval of two driving wheels is arranged.
Further, the main part further includes fixed setting opposite with second driving wheel and can cool down described the
Second fan of two driving wheels and with the motors be arranged and be located at the motor close to polishing portion one end and can
First fan of cooling motor.
Further, be provided at least one air inlet and at least one air outlet on the shell, it is described at least one
Air inlet is arranged close to motor, at least one described air outlet is arranged close to second fan, and outer gas stream is described first
The motor is flowed through from the air inlet close to motor under the action of fan, and from close to the second fan under the action of the second fan
Air outlet outflow.
The beneficial effects of the present invention are: milling tools of the invention by will be between the axis of the axis of jackshaft and motor
Every setting, and by the two sides of motor and energy supply component arrangement jackshaft, to avoid the center of gravity of complete machine from being biased to side, so that the sand
Center of gravity can be closer near jackshaft at work for ray machine, and bottom deck assembly shakes small at work, operates more comfortable；Make again
Milling tools is easy to put in static condition, avoids toppling over.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the overall structure diagram of sander shown in a preferred embodiment of the present invention, does not install battery and installs
There is dust collect plant.
Fig. 2 is the position of centre of gravity structural schematic diagram of complete machine when sander installs the first type cell packet.
Fig. 3 is the position of centre of gravity structural schematic diagram of complete machine of the sander when not installing battery pack.
The position of centre of gravity structural schematic diagram of complete machine when Fig. 4 is sander second of type battery pack of installation.
Fig. 5 is the position of centre of gravity structural schematic diagram of complete machine when sander installs the third type cell packet.
Fig. 6 is structural schematic diagram when sander is placed using the placement plate of battery pack as placed side.
Fig. 7 is the structural schematic diagram of the sander of non-installation section main casing shown in FIG. 1.
Fig. 8 is the optical cable of sander shown in FIG. 1.
Fig. 9 is the exploded view of sander described in Fig. 1.
Figure 10 is the structural schematic diagram of the part of position-limit mechanism in Fig. 1.
Figure 11 is the enlarged drawing of circle A in Fig. 8.
Figure 12 is the cross-sectional view of main part and bottom deck assembly mating state in Fig. 1.
Figure 13 is the structural schematic diagram of locking mechanism in Fig. 1；
Figure 14 is the structural schematic diagram of operating parts in Fig. 1.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Referring to Figure 1, Fig. 7 and Fig. 8, the milling tools in the present embodiment is with 100 (hereinafter referred to as sanding of multifunction sander
Machine 100) it is example, which can replace different bottom deck assemblies 20, which includes main part 10, removable
The operating parts 30 that bottom deck assembly 20 below main part 10 is set with unloading and is rotatably set on main part 10.Please
Using Fig. 1 as benchmark direction, it is the up and down direction of the sander 100 in the direction a-a, wherein defining 20 present position of bottom deck assembly and being
The lower section of entire sander 100.Main part 10 include motor 11, be offset to 11 side of motor jackshaft 12, to store horse
Up to 11 and jackshaft 12 main casing 13 and gripping shell 14 of the main casing 13 far from 11 one end of motor is set.Bottom plate group
Part 20 is installed on the downside of jackshaft 12, specifically, main part 10 passes through jackshaft 12 and the screw thread in jackshaft 12
Bar 41 (see Fig. 8) is connect with bottom deck assembly 20, will later with the principle of bottom deck assembly 20 specifically connecting for main part 10
It is introduced.Bottom deck assembly 20 is driven to move for motor 11 so that bottom deck assembly 20 carries out polishing work, and bottom deck assembly 20, which has, to be used
To realize the polishing base plate 221 of polishing work.In the present embodiment, main casing 13 and gripping 14 injection molding of shell, main casing 13
With hold shell 14 be an integral structure, along the longitudinally of sander 100 be divided into two-half structure namely main casing 13 by
Two half shells of almost symmetry form.The gripping shell 14 is set to main casing 13 close to one end of jackshaft 12, the gripping
Angled setting between shell 14 and main casing 13, in the present embodiment, which includes the gripping handle 141 for gripping
With for holding the gripping chamber 142 for protruding into digital flexion, gripping handle 141 is located at the upside for holding chamber 142, that is, gripping handle
141 are located at and in the side a-a are upwardly away from the side of bottom deck assembly 20.Substantially in 90 degree of folders between the gripping shell 14 and main casing 13
Angle is (it should be noted that extending direction and main casing 13 that angle herein refers to gripping handle 14 are in 11 axis X 1 of motor
Angle between axially extending direction) setting.The axis X 0 of jackshaft 12 and the axis X 1 of motor 11, which are spaced, to be arranged, motor 11 with
It holds shell 14 and is distributed in 12 two sides of jackshaft.
Fig. 2 is referred to, is energized for convenience of to main part 10, shell 14 is held far from the side of main casing 13 and energy supply group is set
Part, energizes component and motor 11 is distributed in the two sides of jackshaft 12.By by the axis of the axis X 0 of jackshaft 12 and motor 11
The setting of the interval X1, and by the two sides of motor 11 and energy supply component arrangement jackshaft 12, so that the center of gravity of complete machine is avoided to be biased to side,
Enabling the sander 100, for center of gravity closer near jackshaft 12, bottom deck assembly 20 shakes small, behaviour at work at work
Make more comfortable；Make milling tools in static condition again, be easy to put, avoids toppling over.It can be understood that energy supply component can
It, can also be using direct current supply mode such as battery component or battery pack etc. to use ac power supply method.It is specific in the present embodiment
It is illustrated for energizing power supply mode of the component using battery pack.Shell 14 is held in the present embodiment far from main casing 13
The battery pack mounting portion 17 of one end setting battery pack 16.Referring specifically to Fig. 1, battery pack mounting portion 17 is provided with pacifies for battery pack 16
The guide rail 171 of dress and the electrode slice 172 being electrically connected with battery pack 16.It is to be appreciated that battery pack 16 is equipped with and electricity
The guide groove (not shown) of the guide rail mating of pond packet mounting portion 17 and the electrode slice slot being coupled with electrode slice (do not show in figure
Out), it is of course possible to understand ground, can also say that electrode slice 172 is arranged in battery pack, while electrode slice slot being arranged in battery
On packet mounting portion 17.
Referring to Fig. 3, when main part 10 does not install battery pack 16, the center of gravity G3 of main part 10 is located at the axis X 1 of motor 11
Between the axis X 0 of jackshaft 12.Fig. 2 is referred to, when the installation battery pack 16 of main part 10 and 16 mass of battery pack is greater than
333g, and with the increase of 16 mass of battery pack, the center of gravity of sander 100 is by the axis X 1 and jackshaft 12 positioned at motor 11
Position between axis X 0 is gradually to mobile close to the direction of battery pack 16.Referring to fig. 4, when 16 packet quality of battery is arrived in 333g
Between 630g, the center of gravity of sander 100 is located at side of the jackshaft 12 far from motor 11 and in the polishing base plate of bottom deck assembly 20
The projection in 221 directions is fallen into polishing base plate 221.Referring to Fig. 5, when 16 mass of battery pack is in 630g or more, the weight of sander 100
The heart is located at side of the jackshaft 12 far from motor 11, and the center of gravity of sander 100 is in 221 direction of polishing base plate of bottom deck assembly 20
Projection fall in except 221 region of polishing base plate of bottom deck assembly 20, at this point, sander 100 is with 221 institute of polishing base plate
When face is that placed side is placed, sander 100 is tilted to 16 side of battery pack.
It should be noted that since motor 11 and gripping shell 14 are located at the two sides of jackshaft 12, and energize component (battery
Packet 16), main casing 13 again be located at hold shell 14 both ends, so, corresponding motor 11, battery pack 16 are separately positioned on this
The both ends of sander 100 can be considered that motor 11 is front end, battery pack 16 is rear end if visual angle with reference to figure 2.
Since the main by weight of sander 100 is from motor 11 and energy supply component (battery pack 16), so, the center of gravity of motor 11, energy supply
The center of gravity of motor 11 is such as positioned the large effect that has of 100 machine gravity of sander by the center of gravity of component (battery pack 16)
For G1, the center of gravity for energizing component (battery pack 16) is defined as G2, and the center of gravity of sander 100 is defined as G3, the center of gravity G1 of motor 11
Distance definition to the center of gravity of sander 100 is a1, the center of gravity of the center of gravity G2 and sander 100 of energy supply component (battery pack 16)
Distance positioning is a2, in order to guarantee the balance of complete machine, prevents from toppling over when standing, and bring good operating experience, above-mentioned sand
The center of gravity of ray machine 100 meets following formula (formula is named as " center of gravity formula ") as far as possible: the weight * a1 of motor 11 is equal to or about
Equal to the weight * a2 of energy supply component 16 (battery pack 16).
It is detachable connection between battery pack 16 and gripping shell 14 in the present embodiment.It is to be appreciated that the battery pack
16 may be non-removable energy storage type battery pack 16.Since battery pack 16 is dismountable, and under normal conditions, the sanding
Machine 100 can choose different battery packs 16 and assembled in the requirement according to the working time.The quality choosing of usual battery pack 16
It selects between 333g and 630g；Model voltage 20V, the capacity 2Ah of battery pack 16, voltage 20V, capacity 4Ah and voltage
It is arbitrary a kind of in 20V, capacity 6Ah.Due to the replaceability of battery pack 16, cause 16 weight of battery pack there are parameter, and sand
For ray machine 100 after factory, the weight of motor 11 is substantially stationary, so, according to the size for 16 capacity of battery pack installed,
Position of centre of gravity is also not fixed, and as shown in Figure 3, when being fitted without battery pack 16 in complete machine, the center of gravity G3 of sander 100 is fallen in
Near the center of gravity G1 of motor 11, and as shown in Figure 2, when complete machine is equipped with (such as the battery pack of 20V, 2Ah of 2Ah battery pack 16
16 weight are about 370g) when, the center of gravity G3 of sander 100 falls in the position of 12 rear side of jackshaft, then as shown in Figure 4, when whole
When machine is equipped with 4Ah (for example 16 weight of battery pack of 20V, 4Ah are about 630g) battery pack 16, the center of gravity G3 of sander 100 will
Fall in the more rearward position of jackshaft 12 again, for entirety, the position of the center of gravity G3 of sander 100 and 16 capacity of battery pack
It is proportional.But when battery pack 16 reaches 6Ah or bigger, the position center of gravity G3 of sander 100 will be gradually distance from centre
Axis 12 is easy to happen rollover situation as shown in Figure 5 so that complete machine be made to generate non-equilibrium state.In this way, either to tool
Working surface will all damage.So the guidance instruction of selection battery pack 16 can be provided by " center of gravity formula ".
In order to be more accurately arranged the sander 100 center of gravity G3 position, the center of gravity of the sander 100 need to be defined
Position range, when being supporting plane with polishing base plate 221, and the center of gravity G3 for working as sander 100 falls in and is with polishing base plate 221
When in supporting plane B-B, complete machine can keep equilibrium state, the normal placement situation that do not topple over be presented, such as Fig. 2 to Fig. 4；And work as
When the center of gravity G3 of sander 100 is fallen in polishing base plate 221 as outside supporting plane B-B, complete machine then cannot keep balance, show
The rollover situation toppled over, such as Fig. 5 are unfavorable for the bottom deck assembly 20 that user replaces sander.In the present embodiment, the battery pack 16
It in actual use can also be using the placement plate 161 as supporting surface, when with electricity including the placement plate 161 away from motor setting
When the placement plate 161 of pond packet 16 is as supporting plane, as shown in fig. 6, the center of gravity G3 of sander 100 is still to fall in battery pack 16
In the range of supporting plane (placement plate 161), complete machine still can keep equilibrium state to place.
Fig. 2 and Fig. 3 are referred to, for ease of operation and is suitble to hand-held, the main portion of main part 10 in the present embodiment
Point size be preferably configured by a manner of dividing into, main casing 13 far from hold shell 14 one end to hold shell 14 connect
The distance K1 of the one end connect is between 70mm-80mm.It is close electric to chamber 142 is held close to one end of main casing 13 to hold chamber 142
The distance K2 (namely the axial length for holding chamber 142) of 17 one end of pond packet mounting portion is between 90mm-105mm, in order to hand-held.
Hold side distance K3 of the chamber 142 close to one end of battery pack mounting portion 17 with battery pack mounting portion 17 far from main casing 13
Between 25mm-35mm, to facilitate fixed battery pack 16 and keep the intensity of battery pack mounting portion 17 appropriate.Therefore, main part 10
Main casing 13 refer at one end main part 10 far from main casing 13 distance at one end between 185mm to 220mm, namely
The entire length of main part 10 is between 185mm to 220mm.
Preferably, between 71.3mm and 78.8mm, K2's above-mentioned K1 exists in 90.3mm to 99.8mm, above-mentioned K3
Between 28.5mm and 31.5mm namely the length of main part 10 is between 190.1mm to 210mm.It is further preferable that above-mentioned K1
For 75mm, K2 95mm, K3 30mm.
Refer to Fig. 7 to Fig. 9, in the present embodiment, the axis X 0 of jackshaft 12 and the axis X 1 of motor 11 are parallel, main part
10 include torque output section for the power of motor 11 to be transferred to bottom deck assembly 20 and the power of motor 11 are transferred to torsion
The driving section 15 of square output section, so that realize makes the movement of bottom deck assembly 20 to carry out polishing work by motor 11.It is first right below
The composition of driving section 15 in the present embodiment is described.Driving section 15 includes being coaxially disposed with motor 11 and being driven by motor 11
First driving wheel 151 of rotation and the second driving wheel for being driven by the first driving wheel 151 and being co-axially located on jackshaft 12
152.The setting of the rotation axis interval of the rotation axis of first driving wheel 151 and the second driving wheel 152.In order to reduce the first biography
The noise and vibration of driving wheel 151 and the second driving wheel 152 when torque transmits, it is preferable that the first driving wheel 151 and the second transmission
Power transmitting is carried out in such a way that transmission belt 153 is driven between wheel 152.In order to enable transmission belt 153 and the first driving wheel
151,152 stable transmission of the second driving wheel, phenomena such as avoiding the occurrence of skidding, the first driving wheel 151, second in the present embodiment pass
The transmission end face of driving wheel 152 is provided with ratchet (not labeled), corresponding, and the driving face engaged therewith of transmission belt 153 (is not marked
Number) on be provided with corresponding ratchet (not labeled).In the present embodiment, jackshaft 12 is to support the second driving wheel 152, at other
In embodiment, the second driving wheel 152 of driving section 15 can also be not arranged on jackshaft 12, can also be using directly branch
It supports in main casing 13 or being supported on other intracorporal axis of shell equal set-up modes.In the present embodiment, jackshaft 12 passes through upper and lower
The vertical setting of two pairs of bearing (not labeled) is in main casing 13, so that jackshaft 12 can be rotated relative to main casing 13.
In the present embodiment, between the jackshaft 12 and the second driving wheel 152 can by being interference fitted or being keyed so that this
Two driving wheels 152 can drive jackshaft 12 that can rotate relative to main casing 13 when rotation, in other embodiments, can incite somebody to action
The jackshaft 12 setting can be fixed on main casing 13 in can not rotate relative to main casing 13, the jackshaft 12 and the
Bearing fixation etc. can be used so that the second driving wheel 152 can be relative to jackshaft in connection type between two driving wheels 152
12 rotations.
It can be plate sand bottom deck assembly, circle sand bottom deck assembly (see Fig. 2-figure since the bottom deck assembly is field-replaceable unit
The bottom deck assembly of schematic diagram in 3) and special-shaped sand bottom deck assembly in any one, wherein plate sand bottom deck assembly includes 1/4
Sand bottom deck assembly, 1/3 sand bottom deck assembly (see Fig. 9 bottom deck assembly) and triangle sand bottom deck assembly or special-shaped sand bottom deck assembly etc.,
Namely it needs to limit the bottom deck assembly of polishing base plate spinning motion when bottom deck assembly 20 works and is referred to as plate sand bottom deck assembly.Behaviour
Author alternatively different types of bottom deck assembly 20 can be coupled with main part 10 according to different polishing demands.But
No matter which kind of bottom deck assembly 20, incorporated by reference to Fig. 8, bottom deck assembly 20 includes bearing 21, the bottom plate shell positioned at 21 outside of bearing
22 and with the bottom plate shaft 23 that is connected on the inside of bearing 21.Bottom plate shell 22 includes the mount holder fixed with 21 outer ring of bearing
(not labeled) and the polishing base plate 221 below mount holder, the mountable sand paper in the lower section of the polishing base plate 221 pass through
Sand paper completes polishing work.If the bottom deck assembly 20 is circle sand bottom deck assembly, polishing base plate is rounded；If the bottom deck assembly is
Plate sand bottom deck assembly, then polishing base plate other does not return in rectangle, triangle or side shape.The polishing base plate of circle sand bottom deck assembly exists
Both revolve when polishing, meanwhile, polishing base plate because carry out rotation under the collective effect of bearing 21 and bottom plate shaft 23, namely
Polishing base plate carries out the track movement of rotation and revolution, therefore, when operator needs to remove a large amount of removing material, can will beat
The installation of bottom plate 221 is ground to main part 10.Incorporated by reference to Fig. 8, after main part 10 and bottom deck assembly 20 are installed, bottom plate shaft 23 is in
Between axis 12 axis co-axial line, bottom plate shaft 23 drives by the second driving wheel 152 and rotated, and bearing 21 is located at bottom plate shaft 23 and bottom
Between board mount, and mount holder is fixed in 21 outer ring of bearing, and the inner ring of bearing 21 is fixed on bottom plate shaft 23, so that bottom plate turns
Axis 23 can be rotated relative to mount holder.Preferably, bottom plate shaft 23 includes gearratio of cycloid axle formation (not labeled), to pass through gearratio of cycloid axle formation
Rotation drive the movement of mount holder and the polishing base plate 221 being fixedly connected with mount holder.It is to be appreciated that because of bottom plate
Bracket is fixedly connected with polishing base plate 221, so gearratio of cycloid axle formation, when rotating relative to mount holder, mount holder is able to drive
Polishing base plate 221 carries out regular swing to realize polishing operation.Further, since the axis of gearratio of cycloid axle formation is relative in
Between the axis X 0 of axis 12 there are eccentric amount es 1, in order to reduce because of the eccentric amount e 1 caused by shaking, bottom plate shaft 23, which is equipped with, matches
Weigh 24.
Refer to Fig. 8 and Fig. 9, it should be noted that the polishing base plate 221 is plate sand bottom deck assembly, if polishing base plate 221
When not only carrying out revolving but also carrying out rotation under the action of bottom plate shaft 23, wherein the four of the rectangle polishing base plate 221 of high speed rotation
A angle easily causes danger, so, sander 100 further includes the position-limit mechanism 25 that rotation is carried out for limiting polishing base plate 221.
Referring to Fig. 9 and Figure 10, it is preferable that the position-limit mechanism 25 is fixed on main part 10, and position-limit mechanism 25 includes limit
Substrate 251, the position-limit foot 252 being set on limit substrate 251, the position-limit foot 252 extend to 13 direction of main casing.Position-limit foot
252 is multiple, each position-limit foot 252 includes more flexible column (not labeled), and position-limit foot 252 is dismountable solid by screw etc.
Due to the main casing 13 of main part 10, multiple flexible columns of each position-limit foot 252, which enclose, is set as hollow through-hole and through-hole perforation
Substrate 251 is limited, it is limit hole 253 that multiple flexible columns of position-limit foot 252, which enclose the hollow via-hole being set as,.Each position-limit foot 252 is remote
One end from limit substrate 251 is provided with installation sheet 254, offered on installation sheet 254 to the appended claims such as screw
Mounting hole (not labeled), when the fasteners such as mounting screw, operator can be by passing through limit hole from the lower section of limit substrate 251
253 are screwed into the fasteners such as screw.In the present embodiment, limited post 27 is provided on bottom deck assembly 20, limited post 27 is by bottom plate
Shell 22 extends towards the direction of main part 11, namely extends towards 252 direction of position-limit foot being located on main part 10, so that
When plate sand bottom plate or special-shaped sand bottom plate are installed on main part 10, limited post 27 can be smoothly plugged in limit hole 253, with
Prevent polishing base plate 221 from carrying out rotation.Limited post 27 is formed from bottom plate shell 22 towards 10 projection of main part.In the present embodiment,
Setting has elastic component 255 between the limited post 27 and position-limit foot 252, which is set to limit hole 253 close to limit
One end of position substrate 251.The embodiment elastic element 255 includes between bottom plate shell 22 and the opening of limit hole 253
Elastic component 2551 the vibration of bottom plate shell 22 and position-limit mechanism 25 along the vertical direction is isolated；Elastic element 255 further includes position
The second elastic element 2552 between limited post 27 and the side wall of limit hole 253 is to be isolated 253 edge of limited post 27 and limit hole
Vibration between radial vibration namely bottom plate shell 22 and position-limit mechanism 25 radially.Due to the bottom deck assembly of sander 100
20 can need to be arranged the polishing base plate 221 of position-limit mechanism 25 to be a variety of, in addition to above-mentioned described polishing base plate 221 is 1/3 sand
Outside shape and 1/4 sand bottom plate, further include another polishing base plate approximation in flatiron shape bottom deck assembly (also referred to as mouse sand or
Special-shaped sand).It being capable of save the cost by the way that above-mentioned position-limit mechanism 25 to be installed on main part 10.
When being all provided with position-limit mechanism 25 on each bottom deck assembly 20, because needing to install the bottom deck assembly 20 of position-limit mechanism 25
Type is relatively more, then needs greater number of position-limit mechanism, higher cost.Additionally, due to elastic element 225 and limit hole 253 it
Between cooperation be mostly be interference fitted, elastic element 225 install it is relatively difficult, therefore, elastic element 225 install quantity it is more,
Assembly is also more difficult.When bottom deck assembly 20 is using circle sand bottom deck assembly, then it can choose and be not provided with limited post 27, therefore,
In real work, which is optionally connect to limit the polishing base plate 221 of bottom deck assembly 20 with bottom deck assembly 20
Around 0 spinning motion of axis X of jackshaft 12.Incorporated by reference to Fig. 8 and Fig. 9, in the present embodiment, due to position-limit foot 252 and jackshaft
The distance of 12 axis X 0 is definite value, and works as the motor 11 in the present embodiment and hold the axis that jackshaft 12 is arranged in shell 14
When the two sides X0, compared with prior art, the overall mechanism of the sander 100 is more compact.
Really, in other embodiments, position-limit foot can also be arranged on bottom deck assembly, if position-limit foot setting is existed
On bottom deck assembly, then only retain the space to accommodate the position-limit foot on main part, it, can be with when specifically used
Position-limit foot is directly positioned on bottom deck assembly, or the position-limit mechanism in the present embodiment is mounted on bottom deck assembly to be formed
One overall structure；Alternatively, individual components can be separately configured to position-limit foot, such as the position-limit mechanism in the present embodiment is arranged
At a separate part, so that position-limit mechanism is not belonging to main part and be also not belonging to bottom deck assembly, is used likewise, retaining on main part
To accommodate the space of the position-limit foot, bottom deck assembly it is alternative retain on the ground limited post (when using circle sand bottom deck assembly, can be with
Selection is not provided with limited post, and reservation limited post is seen when using bottom deck assembly in such as the present embodiment), when needing to limit bottom deck assembly
Bottom plate shell around the spinning motion of the countershaft axis when, by position-limit mechanism be arranged between main part and bottom deck assembly,
Position-limit foot is mounted between main part and bottom deck assembly.
Foregoing description arrives, and torque output section 71, which is realized, drives to bottom deck assembly 20 so that bottom plate for the driving force of motor 11
Component 20 realizes polishing work, and in the present embodiment, incorporated by reference to Fig. 8 and Fig. 9, the setting of torque output section 71 is in bottom deck assembly 20 and passes
Between dynamic portion 15 namely torque output section 71 is arranged between the second driving wheel 152 and bottom deck assembly 20.20 set on bottom deck assembly
There is the torque input unit 72 with the torque output section 71 mating, realizes and the torque of the second driving wheel 152 is transferred to bottom deck assembly
20, the driving force of motor 11 is transferred to bottom deck assembly 20 to realize.In the present embodiment, torque output section 71 is directly fixed
It is rotated synchronously on the second driving wheel 152 with realizing.When the installation of bottom deck assembly 20 to main part 10, torque output section 71 and torsion
The cooperation of square input unit 72 drives bottom plate shaft 23 to rotate to realize.Fig. 9 is referred to, in the present embodiment, it is preferable that torque output section
71 with the second driving wheel 152 to be fixedly connected and in the first engaging tooth that circumferencial direction is uniformly arranged, and torque input unit 72 is equal
The second engaging tooth that is on the outside of even setting bottom plate shaft 23 and can cooperating with the first engaging tooth.Specifically, incorporated by reference to Fig. 7 and figure
8, the lower end of the jackshaft of the second driving wheel 152 is fixed with fan 63, and fan 63 includes fan base portion 630 annular in shape, from wind
The first flabellum (hereinafter referred to as the second fan 631), the Yi Jicong that the side of fan base portion 630 extends to 151 direction of the second driving wheel
The second flabellum (hereinafter referred to as third fan 632) that the another side of fan base portion 630 extends to 20 direction of bottom deck assembly.First
Engaging tooth is to be arranged in the second driving wheel 152 and be fixedly connected with or be set to 63 inner circumferential of fan and and wind with the second driving wheel 152
Several double wedges on 63 64 lower end surface of inserts that is fixedly connected of fan, the second engaging tooth be the upper end of bottom plate shaft 23 it is radial to
Extend several double wedges outside.It is to be appreciated that torque output section 71 and torque input unit 72 can also be other setting sides
Formula, as long as can be realized the transmitting (torque transmitting) of the rotary motion between motor 11 and bottom plate shaft 23.It needs to illustrate
, in the present embodiment, since jackshaft 12 is preferably to rotate, the fixed outside for being sheathed on jackshaft 12 of the inserts 64
To drive jackshaft 12 to rotate.That is, the driving force of motor 11 is passed to inserts 64 by the second driving wheel 152 in the present embodiment,
Inserts 64 transfers a torque to bottom deck assembly 20 by rotating transferring member, and inserts 64 simultaneously passes to the driving force of motor 11
Jackshaft 12 is so that jackshaft 12 is rotated.
Above-mentioned rotation transferring member only realizes that torque transmits, and still, bottom deck assembly 20 needs not only to enough in main part 10
Rotation transferring member drive under rotate, it is also necessary to realize axial connection, between main part 10 to realize bottom deck assembly 20
Installation and decomposition between main part 10.The bottom deck assembly 20 passes through setting connection component relative to 10 axial restraint of main part
It realizes.
Connection component includes that the first connector of one of main part 10 and bottom plate shaft 23 is arranged in and is set to main body
The second another connector in portion 10 and bottom plate shaft 23, the second connector are connect after rotating relative to the first connector with first
Part separation axial connect and then realizes being mounted or separated for bottom deck assembly 20 and main part 10.Preferably, for convenience of operating, lead to
Crossing operating parts 30 drives the second connector to rotate relative to the first connector.First connector can be to be set to jackshaft 12 and bottom
The fixation hole of one of plate shaft 23；Second connector can be to be connected to fastening another in jackshaft 12 and bottom plate shaft 23
Part.Incorporated by reference to Fig. 8 and Fig. 9, in the present embodiment, specifically, fastener is threaded rod 41, the lower section of threaded rod 41 is equipped with external screw thread
411, fixation hole 412 is set in bottom plate shaft 23, is at least partly formed with internal screw thread on inner wall in the fixation hole 412 and (is not marked
Number), and bottom deck assembly 20 and main part are realized by the mating of the internal screw thread of the external screw thread 411 and bottom plate shaft 23 of threaded rod 41
10 axial connection, operating parts 30 operationally drive threaded rod 41 to rotate relative to internal thread fixation hole 412 is set with reality
Axial connection between existing threaded rod 41 and bottom plate shaft 23 namely the axial direction between realization body portion 10 and bottom deck assembly 20 connect
It connects.It is to be appreciated that in other embodiments sky can be arranged to by one section for connecting threaded rod 41 with bottom plate shaft 23
The threaded rod of the heart, and internal screw thread is arranged in the inner wall of hollow thread bar, and external screw thread is arranged in bottom plate shaft 23.
Fig. 8 and Figure 11 are referred to, in the present embodiment, for the ease of disposing threaded rod 41, sets empty for jackshaft 12
Mandrel, threaded rod 41 are at least partially disposed in hollow shaft, to prevent threaded rod 41 from falling out of hollow shaft, the upper end of threaded rod 41
Equipped with flange 413.In the present embodiment, for the concentricity namely threaded rod 41 or jackshaft for guaranteeing main part 10 and polishing portion 12
Concentricity between 12 and the rotation axis of bottom plate shaft 23 is to reduce the vibration of sander 100 at work, bottom plate shaft
The second support portion 414 is additionally provided on 23, it is preferable that the second support portion 414 is arranged to the groove extended along rotation axis direction,
The lower section of jackshaft 12 is formed and essentially identical the first support portion 415 with for protruding into groove of the groove outer diameter.Incorporated by reference to
Figure 12, it is L1 that jackshaft 12, which extends to the length L1 of fixation hole 412 namely the axial dimension of the first support portion 415, and L1 exists
Between 4mm-30mm, it is preferable that L1 is between 11.25mm-13.75mm, it is further preferable that L1 is 12.5mm.First support portion
415 and second be the outer diameter of small―gap suture mating namely the first support portion 415 and second between support portion 414 (groove)
The outer diameter of support part 414 (groove) is essentially identical, hereinafter referred to as mating diameter D1, mating diameter D1 in 7mm between 12mm,
Preferably, mating diameter D1 in 8.55mm between 10.45mm, it is further preferable that mating diameter D1 is 9.5mm.It is understood that
Ground, when it is a certain particular value that diameter D1, which is coupled, the mating length L1 the big, is coupled that effect is better namely concentricity can be better.
But L1 is longer, then complete machine height is higher.In the present embodiment, in order to enable the concentricity of complete machine still can when mating length is smaller
It is guaranteed well, main part 10 is equipped with the abutting end face 416 abutted with the upper surface of bottom plate shaft 23, and abutment end
The diameter D2 in face 416 is greater than D1.In the present embodiment, abutting end face 416 is that torque input unit 71 and bottom plate shaft 23 abut against
End face, it is possible to understand that ground in other embodiments, abut end face 416 or be fixedly connected with torque output section 71 and with
The end face that bottom plate shaft 23 abuts against.It in the present embodiment, is abutted by using large end face, mating length L1 is with mating diameter D1's
Ratio do it is small to 0.33, when can guarantee that D1 is a certain particular value, will mating length L1 do it is short, it will of course be understood that ground,
Under the premise of guaranteeing D2 large end face, the value of L1/D1 is bigger, is more conducive to the stability of concentricity.
In order to improve the mating between the second connector and the first connector, connection component further includes setting in the second connection
Part one end is to provide the first elastic component 42 towards the applied force in the first connector direction to the second connector.First 42 sets of elastic component
It is located at the end of the second connector.Refer to Fig. 8 and Figure 11, the first elastic component 42 used is spring in the present embodiment, in this reality
It applies in example, since the first connector is threaded rod 41, so, in order to preferably assemble, the first elastic component 42 can be set in
The end of threaded rod 41, and close to operating parts 30, the first elastic component 42 is provided to threaded rod 41 downward along axis X 0 always as a result,
Biasing force, preferably carry out screw thread mating to help 41 lower end of threaded rod and bottom plate shaft 23.There are two types of shapes for the tool of operating parts 30
State, opening state and closed state.When sander 100 is not in working condition, and needs replacing bottom deck assembly 20, will operate
When part 30 is set as opening state, operating parts 30 can be rotated relative to main casing 13, and operating parts 30 drives threaded rod 41
Rotation.When operating parts 30 is after closure, threaded rod 41 can be rotated relative to operating parts 30.When sander 100 is in work shape
When state, above-mentioned operating parts 30 is in closed state, and threaded rod 41 can be freely rotated relative to operating parts 30.
It should be noted that when being threadedly coupled threaded rod 41 with bottom plate shaft 23 by operating parts 30, screw thread
The rotation of bar 41 will drive bottom plate shaft 23 and be rotated, and the rotation of bottom plate shaft 23 can pass through above-mentioned torque output section 71 and torsion
Square input unit 72 drives the rotation of jackshaft 12, thus the external screw thread 411 of threaded rod 41 will be unable to the interior spiral shell with bottom plate shaft 23
The mating of line.So when threaded rod 41 is threadedly coupled with bottom plate shaft 23 by operating parts 30, it is necessary to which limitation is intermediate
The rotation of axis 12.In the present embodiment, sander 100 further includes that can limit the rotation of jackshaft 12 to realize the first connector and the
The mating of two connectors or isolated locked component.Incorporated by reference to Fig. 8, Figure 11 and Figure 13, which includes can be with respect to main casing
Body 13 is movable but non-rotatable first locking piece 1181 and the second locking for being fixedly connected or being wholely set with jackshaft 12
Part 1182, wherein the first locking piece 1181 can move between the first position and the second position, when the first locking piece 1181
When first position, the first locking piece 1181 and the mating of the second locking piece 1182 namely locking mechanism are in the lock state, intermediate
Axis 12 is circumferentially locked.In the present embodiment from the above description it can be seen that since what the second driving wheel 152 was fixed is sheathed on centre
The outside of axis 12 is to drive between the rotation of jackshaft 12 namely jackshaft 12 and bottom plate shaft 23 as not relatively turnable company
It connects, therefore when the locking of jackshaft 12, bottom plate shaft 23 can be also locked therewith, cannot circumferentially be rotated.Further, since torque exports
By engagement tooth engagement to transmit torque namely jackshaft 12 and bottom plate shaft 23 in circumferential direction between portion 71 and torque input unit 72
On can not relatively rotate, therefore, when jackshaft 12 lock after, bottom plate shaft 23 also can be locked circumferentially, and therefore, threaded rod 41 can
Operatively rotated relative to bottom plate shaft 23.When the first locking piece 1181 is located at the second position, the first locking piece 1181 and
The separation of two locking pieces 1182 namely locking mechanism are in the unlocked state, and locking mechanism, which releases, locks the circumferential direction of jackshaft 12, in
Between axis 12 can be rotated relative to main casing 13.In the present embodiment, the locking mechanism is specific as follows: locking piece 1182 is
It is fixed on the flange ontology in 12 outside of jackshaft, wherein flange ontology is equipped with backstop slot 1810, and the first locking piece 1181 is can
The stop block of axial movement, when stop block it is moved axially upward to first position when, stop block is at least partially disposed at backstop slot
Circumferentially rotated with limiting jackshaft 12 in 1810, when stop block axial downward movement to the second position, stop block with only
Retaining groove 1810 separates, and jackshaft 12 can be freely rotated.It will be understood ground, in other embodiments, the movement of stop block
Direction can also be along other directions such as radially or with axial direction in the direction of other angles, and details are not described herein again.It is to be appreciated that
Locking mechanism can also use other modes to the locking of bottom plate shaft 23 in other embodiments, as locking mechanism passes through limitation horse
The rotation reached is realized or locking mechanism directly limits a certain component in bottom plate shaft 23 and realizes, as long as can be realized bottom
The rotation of plate shaft 23.
In addition, the present embodiment is real by operating parts 30 to switching of the locking mechanism between lock state and unlocked state
It is existing.When operating parts 30 in the closure state, operating parts 30 and the first locking piece 1181 (stop block) axially abut, and first locks
Part 1181 compresses downwards the first elastic element 31, therefore the underlying second position of the first locking piece 1181, the first locking
Part 1181 is separated with the second locking piece 1182, and locking mechanism is in the unlocked state；It is beaten when operating parts 30 is switched to by closed state
When open state, the second locking piece 1182 moves up to first position under the action of the first elastic element 31, stop block with only
Retaining groove 1810 is coupled, and locking mechanism is in the lock state.
Incorporated by reference to Fig. 7, Figure 11 and Figure 14, operating parts 30 includes the handle portion 32 and pedestal 33 for holding for operator,
Handle portion 32 is set to pedestal 33 by the way that pivotal axis is pivotable to switch between the first operating position and the second operating position.
Preferably, pivotal axis includes the first pivotal axis 341 for being fixed on handle portion 32 and the second pivotal axis 342 for being fixed on pedestal 33,
Pedestal 33 is equipped with the first sliding groove 331 for the rotation of the first pivotal axis 341, and handle portion 32 is equipped with to be transported for the second pivotal axis 342
Dynamic second sliding slot (not shown).Handle portion 32 can closed state the second operating position (the second operating position such as Fig. 7's
State) and the first operating position (state of the first operating position such as Figure 14) of opening state between switch.It needs to illustrate
It is that when handle portion 32 is located at the second operating position, handle portion 32 at least partly stretches out main casing 13；Handle portion 32 is located at the first behaviour
When making position, outer profile of the operating parts 30 without departing from main casing 13；When i.e. handle portion 32 is in the second operating position, handle portion 32
With gripping handle 141 generally in same horizontal line；When handle portion 32 is located at the first operating position, handle portion 32 with hold
Hold angled placement between handle 141.The bearing surface 35 to compress the first locking piece 1181 is provided on handle portion 32.Referring to
Figure 11, when handle portion 32 is in the second operating position (in closed state), the bearing surface 35 of handle portion 32 compresses the first lock
Determine part 1181, and the first elastic element 31 is further compressed by the first locking piece 1181, therefore, the first elastic element 31 is pressed
Contracting, the underlying second position of the first locking piece 1181, at this point, jackshaft 12 can after power switch starting (not shown)
It is rotated under the driving of motor 11 with the second driving wheel 152；When handle portion 32 is from the second operating position shown in Fig. 7
When (closed state) (Figure 11) moves to the first operating position (opening state) (Figure 14), bearing surface 35 is moved up and first
Locking piece 1181 moves up under the action of the first elastic element 31, until the first locking piece 1181 is made to be moved upward to above-mentioned
One position, jackshaft 12 is locked, and jackshaft 12 not can be rotated with respect to main casing 12.
As described in aforementioned, handle portion 32 can be used in that threaded rod 41 is driven to be rotated, so, the sander 100 operation
Simply, while keeping 100 structure of sander also simple.The operating parts 30 and the cooperation of threaded rod 41 are as follows: when operating parts 30
After closed state, i.e., first hand 32 is in the second operating position, the first locking piece 1181 is in the second position, the handle
Portion 32 can not drive threaded rod 41 to be rotated；When handle portion 32 is rotated around pivot axis to the first behaviour by the second operating position
When making position, at this point, the first locking piece 1181 becomes being located at first position, jackshaft 12 is locked, and handle portion 32 is able to drive
Threaded rod 41 is rotated around its axis (namely axis of jackshaft 12).In the present embodiment, threaded rod 41 is equipped with transmission member
Part, referring to Figure 11, in the present embodiment, actuated element is the second lug 417 being set on threaded rod 41, operating parts 30 include with
The corresponding first lug 36 of second lug 417, when handle portion 32 is in the first operating position, first lug 36 and the second lug
417 matings, are rotated so that handle portion 32 is able to drive threaded rod 41 relative to main casing 13, so that bottom deck assembly
20 can be attached or separate with main part 10.
Referring to Figure 1 and Fig. 7, in the present embodiment, the first air inlet 131, the second air inlet 132 are offered on main casing 13
With the first air outlet 133.Sander 100 is provided with the first fan 61 for cooling down motor 11, first fan in this implementation
61 are coaxially disposed with motor 11, and are located at motor 11 close to one end of bottom deck assembly 20, and the first fan 61 is located at determining for motor 11
The lower section at position where son and rotor.In the present embodiment, in order to reduce the length in the horizontal direction of sander 100, the second wind
Fan 631 and the first fan 61 use the modes of emplacement to misplace up and down namely the first fan 61 and the second fan 631 not in same water
Flat height, it is preferable that the second fan 631 is located at the lower section of the first fan 61 in the height direction.Second fan 631 is for cooling down
Second driving wheel 152.In the present embodiment, the first cooling air duct and the second cooling air duct are formed in sander 100, this is first cold
But wind path and the second cooling air duct share identical first air outlet 133, and at least partly the first air inlet 131 is set close to motor
It sets, at least partly the first air outlet 133 is arranged close to the second fan 631, in the present embodiment, at least partly the first air inlet 131
Positioned at the stator of motor 11 and the top of rotor, at least partly the first air outlet 133 is located at region corresponding to the second fan 631
On main casing 13.First cooling air duct successively passes through the first air inlet 131, motor 11, driving section 15 and the first air outlet 133,
Second cooling air duct successively passes through the second air inlet 132, driving section 15 and the first air outlet 133.Specific: outer gas stream is
Motor 11 and driving section 15 are flowed through from the first air inlet 131 close to motor 11 under the action of one fan 61, and in the second fan
It is flowed out under the action of 631 from the first air outlet 133 close to the second fan 631, that is, such air-flow can be stable from the first air inlet
Mouth 131 and the second air inlet 132 enter in main casing 13, and move at the first fan 61 through motor 11, then through driving section
15, then by the second fan 631 outside the first air outlet 133 export main casing 13.In the present embodiment, due to the first cooling air duct
It first passes through after motor 11 using driving section 15, so, when cooling wind reaches driving section 15, in particular to up to second
When driving wheel 152, the temperature of the opposite wind in 11 position of motor of the temperature of wind is high at this time, so, opposite, cooling efficiency drop
It is low, so, it also needs to be arranged in the present embodiment to pass for cooling down 152 second cooling air duct of the second driving wheel to further decrease
The temperature in dynamic portion 15.The present embodiment is by the first cooling air duct for being used to cool down motor 11 and is mainly used for cooling second driving wheel
152 the second cooling air duct connection.
Sander 100 further includes the dust collect plant 40 being arranged on main part, and dust wind path, collection are arranged in sander 100
The wind of 221 downside of polishing base plate and dust are sucked and are discharged into dust collect plant 40 by dirt wind path.Third fan 632 and the second fan
631 share same wheel hub, and in other words the top of wheel hub is the second fan 631, below wheel hub is third fan 632.The collection
The air inlet (not labeled) of dirt wind path is located on one side and sand paper of the polishing base plate 221 towards sand paper, the dust wind path
Air outlet (not labeled) is the dust outlet for the dust collect plant 40 being connected to third fan 63, by polishing portion 12 in bruting process
Clast, the dust of middle generation are blowed through third fan 63 to dust collect plant 40, which can be dust bag or collection
Dirt box.It is to be understood that the set-up mode in air duct can also be using other set-up modes, such as only with one in the present embodiment
Cooling motor 11 and driving section 15 still cool down motor 11 and driving section 15 with only with a fan to a fan simultaneously simultaneously
Compare, the set-up mode of combination of fans and air duct used by the present embodiment has following two advantages: 1, cooling effect more preferably, 2,
Help to reduce size.Since if realizing the cooling to motor and driving member only with a fan, due to cooling horse
Wind after reaching will reduce the cooling effect of driving member, in cooling driving member in addition, if in order to reach preferably cooling effect
Fruit, it is necessary to larger-size fan is used, and according to large-sized fan, it will cause the size of fan position to become
Greatly, meanwhile, position-limit foot needs to avoid the position of fan, then position-limit foot needs outer move.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of milling tools, including main part and the bottom deck assembly being arranged on the main part, the main part includes shell
Body, motor, the jackshaft for being offset to the motor side and for the energy supply component to the powered motors, the shell packet
The main casing to store the motor and the jackshaft is included, the bottom deck assembly is set to the lower end of the jackshaft, institute
Stating bottom deck assembly includes polishing base plate, and the bottom deck assembly carries out polishing work by polishing base plate under the driving of the motor
Make, the milling tools further includes for the energy supply component to the powered motors, which is characterized in that the axis of the jackshaft
Arranged side by side and interval is arranged with the axis of the motor, and the motor and the energy supply components distribution are the two of the jackshaft
Side.
2. milling tools as described in claim 1, which is characterized in that the shell further includes that setting is close in the main casing
Described jackshaft one end and gripping shell with the angled setting of main casing, the energy supply component, main casing are distributed in described hold
Hold the both ends of shell.
3. milling tools as described in claim 1, which is characterized in that the energy supply component is battery pack, the battery pack matter
Between 333g to 630g, the center of gravity of the milling tools is located at side of the jackshaft far from motor and in polishing base plate amount
The projection in direction is fallen into polishing base plate.
4. milling tools as described in claim 1, which is characterized in that the main casing is far from holding one end of shell to described
Main casing is at a distance from one end of the gripping shell connection between 70mm to 80mm.
5. milling tools as described in claim 1, which is characterized in that the main part is close to one end of the motor to described
Distance of the main part far from described motor one end is between 185mm to 220mm.
6. milling tools as described in claim 1, which is characterized in that the bottom deck assembly is mounted at the main body
Portion, and the bottom deck assembly be circle sand bottom deck assembly or plate sand bottom deck assembly in any one.
7. milling tools as described in claim 1, which is characterized in that the milling tools further include be located at the main part and
Position-limit foot between bottom deck assembly, the position-limit foot are optionally connect to limit the bottom deck assembly with the bottom deck assembly
Polishing base plate around the jackshaft axis spinning motion.
8. milling tools as claimed in claim 1 or 5, which is characterized in that the main part further includes for by the motor
Power be transferred to the torque output section of bottom deck assembly and the power of the motor be transferred to the driving section of torque output section,
The driving section include the first driving wheel driven by the motor and by it is described first transmission wheel drive the second driving wheel,
And the rotation axis interval setting of the rotation axis and the second driving wheel of first driving wheel.
9. milling tools as claimed in claim 8, which is characterized in that the main part further includes and the second driving wheel phase
To fixed setting and the second fan of second driving wheel can be cooled down and be arranged with the motors and be located at described
Motor is close to described bottom deck assembly one end and can cool down the first fan of the motor.
10. milling tools as claimed in claim 9, which is characterized in that be provided on the shell at least one air inlet and
At least one air outlet, at least one described air inlet are arranged close to the motor, at least one described air outlet is close to described
The setting of second fan, outer gas stream flow through the motor from the air inlet close to motor under the action of first fan, and
It is flowed out under the action of the second fan from the air outlet close to the second fan.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034934 | 2018-01-15 | ||
| CN2018100349345 | 2018-01-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110039442A true CN110039442A (en) | 2019-07-23 |
| CN110039442B CN110039442B (en) | 2024-05-07 |
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| CN201910036552.0A Active CN110039442B (en) | 2018-01-15 | 2019-01-15 | Polishing tool |
| CN201920064413.4U Active CN209408223U (en) | 2018-01-15 | 2019-01-15 | Milling tools |
| CN201920065175.9U Active CN209868288U (en) | 2018-01-15 | 2019-01-15 | Polishing tool |
| CN201910037253.9A Active CN110039420B (en) | 2018-01-15 | 2019-01-15 | Polishing tool, and method for detaching and installing base plate assembly of polishing tool |
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| CN201920064413.4U Active CN209408223U (en) | 2018-01-15 | 2019-01-15 | Milling tools |
| CN201920065175.9U Active CN209868288U (en) | 2018-01-15 | 2019-01-15 | Polishing tool |
| CN201910037253.9A Active CN110039420B (en) | 2018-01-15 | 2019-01-15 | Polishing tool, and method for detaching and installing base plate assembly of polishing tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110900399A (en) * | 2019-11-27 | 2020-03-24 | 华北理工大学 | Multi-angle surface polishing device for metal material processing |
| CN113492385A (en) * | 2020-04-03 | 2021-10-12 | 苏州宝时得电动工具有限公司 | Hand-held power tool |
| CN114473771A (en) * | 2020-11-12 | 2022-05-13 | 南京泉峰科技有限公司 | Polishing tool |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110039442B (en) * | 2018-01-15 | 2024-05-07 | 苏州宝时得电动工具有限公司 | Polishing tool |
| US20220143774A1 (en) * | 2020-11-12 | 2022-05-12 | Nanjing Chervon Industry Co., Ltd. | Sanding tool |
| CN113523953B (en) * | 2021-08-02 | 2022-05-17 | 东莞欧德雅装饰材料有限公司 | Handheld fastening polishing robot for edge sealing strip |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110039442B (en) | 2024-05-07 |
| CN110039420A (en) | 2019-07-23 |
| CN209868288U (en) | 2019-12-31 |
| CN209408223U (en) | 2019-09-20 |
| CN110039420B (en) | 2024-04-09 |
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