CN110170700A - Electric circular saw - Google Patents
Electric circular saw Download PDFInfo
- Publication number
- CN110170700A CN110170700A CN201910411405.7A CN201910411405A CN110170700A CN 110170700 A CN110170700 A CN 110170700A CN 201910411405 A CN201910411405 A CN 201910411405A CN 110170700 A CN110170700 A CN 110170700A
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- Prior art keywords
- gear
- transmission shaft
- driving
- bevel gear
- shaft
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/16—Hand-held sawing devices with circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention belongs to field of power tools, more particularly to a kind of electric circular saw, the electric circular saw includes driving device, the first transmission shaft, transfer gear train and saw blade, transfer gear train includes the bevel gear assembly being fitted to each other by the first transmission shaft and cylindrical gear assemblies, the output of the axial direction and driving device of first transmission shaft is axially vertical, saw blade is connect by transfer gear train with driving device, and transfer gear train is arranged to for the power of driving device being transferred on saw blade.Electric circular saw according to an embodiment of the present invention, by the way that bevel gear assembly is arranged, the direction of the power output of driving device can not only be adjusted, it can also bear the axial force of saw blade at work, the phenomenon that making to can be significantly reduced when axial force transmission caused by saw blade to driving device when work, avoiding the occurrence of damage driving device.
Description
Technical field
The invention belongs to field of power tools, and in particular to a kind of electric circular saw.
Background technique
What this part provided is only background information relevant to the disclosure, is not necessarily the prior art.
Electric circular saw is a kind of very widely used electric cutting tool, due to cutting efficiency it is high, it is light-weight, small in size,
It carries easy to use, and is liked by consumer, the huge market demand.
Electric circular saw is mainly that motor is driven by worm and gear realization to drive saw blade to work, using worm and gear at present
The kind of drive has the following disadvantages: first is that the structure driven low efficiency, and when worm and gear engaged transmission, engagement wheel between cog
Relative sliding velocity it is big, therefore frictional dissipation is big；Second is that relative sliding velocity causes greatly fever serious in transmission process, need good
Good lubricating arrangement, improves cost；Third is that component processing difficulty is big, high production cost, when damage, repairs and replacement is inconvenient；
Fourth is that the distance between saw blade and user are small, it is unfavorable for operating, it is poor using comfort.
Summary of the invention
The purpose of the present invention is at least solve one of above-mentioned technical problem.The purpose is achieved through the following technical solutions
:
It is described the invention proposes a kind of electric circular saw, including driving device, the first transmission shaft, transfer gear train and saw blade
Transfer gear train includes the bevel gear assembly being fitted to each other by first transmission shaft and cylindrical gear assemblies, and described first passes
The axial direction of moving axis and the output of the driving device are axially vertical, and the saw blade is filled by the transfer gear train and the driving
Connection is set, and the transfer gear train is arranged to for the power of the driving device being transferred on the saw blade.
Electric circular saw according to an embodiment of the present invention, the first transmission shaft is as between bevel gear assembly and cylindrical gear assemblies
Connector can not only adjust the direction of the power output of driving device, i.e. the first transmission shaft is to change by the way that bevel gear assembly is arranged
Become the transmission parts in power output direction, moreover it is possible to the axial force of saw blade at work is born, it is axial caused by saw blade when making work
The phenomenon that power can be significantly reduced when being transferred to driving device, avoid the occurrence of damage driving device, by the way that roller gear group is arranged
Part and with bevel gear assembly cooperate, increase the distance between driving device and saw blade, increase the depth of cut of saw blade, make to drive
Device moves in the vertical direction, and the usage comfort of user is improved in the space for increasing operation and holding.
Wherein, it is compared to the electric circular saw using worm and gear as transmission mechanism, bevel gear assembly can greatly drop
The structural complexity of the transmission mechanism of low electric circular saw is reduced since structure is complicated causes transmission mechanism assembly tired for transmission mechanism
It is difficult, be easy to appear failure and the low phenomenon of service life, the transmission of bevel gear assembly is bigger and can provide in transmission process
More contacts area keep transmission more steady, reduce shock and vibration, improve the delivery efficiency of driving device, reduce energy
Loss.
In addition, electric circular saw according to an embodiment of the present invention, can also have following additional technical characteristic:
In some embodiments of the invention, the bevel gear assembly, first transmission shaft, the cylindrical gear assemblies
It is sequentially connected with the saw blade.
It in some embodiments of the invention, further include second driving shaft, the driving device is driven by described second
Axis is driven the bevel gear assembly；
The bevel gear assembly includes:
First bevel gear, the first bevel gear are arranged on the second driving shaft；
Second bevel gear, the second bevel gear are arranged on first transmission shaft and nibble with the first bevel gear
It closes, the second bevel gear is driven the cylindrical gear assemblies by first transmission shaft.
It in some embodiments of the invention, further include third transmission shaft and the 4th transmission shaft；
The cylindrical gear assemblies include:
First roller gear, first roller gear are arranged on first transmission shaft；
Second roller gear, second roller gear be arranged on the third transmission shaft and with first Cylinder Gear
Wheel engagement；
Third roller gear, the third roller gear be arranged on the 4th transmission shaft and with second Cylinder Gear
Wheel engagement；
The saw blade is connected on the output end of the 4th transmission shaft.
In some embodiments of the invention, the driving device includes:
Driving motor；
Transmission component, the driving motor are driven the second driving shaft by the transmission component.
In some embodiments of the invention, the transmission component includes:
Driving gear, the driving gear are connected on the output shaft of the driving motor；
Driven gear, the driven gear are arranged on the second driving shaft and engage with the driving gear.
In some embodiments of the invention, first transmission shaft, the third transmission shaft and the 4th transmission shaft
Axial direction it is parallel and first transmission shaft is an integral structure with first roller gear.
In some embodiments of the invention, the second driving shaft and first transmission shaft is axially vertical and described
Second driving shaft is an integral structure with the first bevel gear.
In some embodiments of the invention, the driving gear is an integral structure with the second driving shaft.
In some embodiments of the invention, the first bevel gear and the second bevel gear are curve tooth conical tooth
Wheel.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the exploded perspective structural schematic diagram of the electric circular saw of the embodiment of the present invention；
Fig. 2 is the diagrammatic cross-section of the electric circular saw of the embodiment of the present invention shown in FIG. 1；
Fig. 3 is the revolved sectional view in the direction electric circular saw A-A of the embodiment of the present invention shown in Fig. 2；
Fig. 4 is the structural schematic diagram of the transfer gear train of the electric circular saw of the embodiment of the present invention shown in Fig. 3.
Respectively label is expressed as follows in attached drawing:
1, driving device；11, driving motor；12, transmission component；121, driving gear；122, driven gear；
2, bevel gear assembly；21, first bevel gear；22, second bevel gear；
3, cylindrical gear assemblies；31, the first roller gear；32, the second roller gear；33, third roller gear；
4, the first transmission shaft；
5, saw blade；
6, second driving shaft；
7, third transmission shaft；
8, the 4th transmission shaft.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
It should be understood that term used herein merely for description particular example embodiment purpose, and have no intention into
Row limitation.Unless the context clearly indicates otherwise, otherwise singular " one " as used in the text, "one" and " described "
Can also indicate to include plural form.The terms "include", "comprise", " containing " and " having " are inclusives, and therefore
It indicates the presence of stated feature, step, operations, elements, and/or components, but presence or addition one or more is not precluded
A other feature, step, operation, component, assembly unit, and/or their combination.
Although can be described in the text using term first, second, third, etc. multiple element, component, region, layer and/
Or section, still, these component, assembly units, region, layer and/or section should not be limited by these terms.These terms can be only
For a component, assembly unit, region, layer or section are distinguished with another region, layer or section.Unless context clearly refers to
Out, do not implied that when otherwise the term and other numerical terms of such as " first ", " second " etc use in the text sequence or
Person's order.Therefore, first element discussed below, component, region, layer or section are in the introduction for not departing from example embodiment
In the case of can be referred to as second element, component, region, layer or section.
For ease of description, an element as illustrated in the diagram can be described use space relativeness term in the text
Either feature is relative to another element or the relationship of feature, these relativeness terms are, for example, " inside ", " outside ", " interior
Side ", " outside ", " following ", " lower section ", " above ", " top " etc..This spatial correlation term is intended to include removing to retouch in figure
The different direction of device in use or operation except the orientation drawn.For example, being retouched if the device in figure is overturn
State for " below other elements or feature " either the element " below other elements or feature " will then be orientated "
Above other elements or feature " either " above other elements or feature ".Therefore, exemplary term " in ... lower section " can
To include in orientation upper and under.In addition device can be oriented and (be rotated by 90 ° or in other directions) and used herein
Spatial correlation descriptor correspondingly explains.
As shown in Figures 1 to 4, electric circular saw according to an embodiment of the invention, including driving device 1, the first transmission shaft
4, transfer gear train and saw blade 5, transfer gear train include the bevel gear assembly 2 and cylinder being fitted to each other by the first transmission shaft 4
The output of gear assembly 3, the axial direction and driving device 1 of the first transmission shaft 4 is axially vertical, and saw blade 5 is by transfer gear train and drives
Dynamic device 1 connects, and transfer gear train is arranged to for the power of driving device 1 being transferred on saw blade 5.
Electric circular saw according to an embodiment of the present invention, the first transmission shaft 4 as bevel gear assembly 2 and cylindrical gear assemblies 3 it
Between connector can not only adjust the direction of the power output of driving device 1, i.e., the first transmission by the way that bevel gear assembly 2 is arranged
Axis 4 is the transmission parts for changing power output direction, moreover it is possible to bear the axial force of saw blade 5 at work, produce saw blade 5 when work
The phenomenon that can be significantly reduced when raw axial force transmission to driving device 1, avoiding the occurrence of damage driving device 1, saw blade 5 turn
Axis is vertical with the output shaft of driving device 1, carries out observation cutting position convenient for user and cuts operating condition, improves to user's
Protection, by setting cylindrical gear assemblies 3 and with bevel gear assembly 2 cooperate, increase between driving device 1 and saw blade 5 away from
From the depth of cut of increasing saw blade 5 moves driving device 1 in the vertical direction, and the space for increasing operation and holding, raising makes
The usage comfort of user.
Wherein, it is compared to the electric circular saw using worm and gear as transmission mechanism, bevel gear assembly 2 can greatly drop
The structural complexity of the transmission mechanism of low electric circular saw is reduced since structure is complicated causes transmission mechanism assembly tired for transmission mechanism
It is difficult, be easy to appear failure and the low phenomenon of service life, the transmission of bevel gear assembly 2 is bigger and can provide in transmission process
More contacts area keep transmission more steady, reduce shock and vibration, improve the delivery efficiency of driving device 1, reduce energy
Loss.
In some embodiments of the invention, according to driving device 1, bevel gear assembly 2, the first transmission shaft 4, roller gear
The sequence of component 3 and saw blade 5 is successively assembled, and is first carried out the setting of bevel gear assembly 2, is increased the length of electric circular saw, make
The space that user holds moves back, then carries out the setting of cylindrical gear assemblies 3, and the power of driving device 1 is made to be transferred to saw blade 5
On, be compared to first be arranged cylindrical gear assemblies 3 mode, electric circular saw it is smaller, operated conducive to user.
In some embodiments of the invention, bevel gear assembly 2 specifically includes first bevel gear 21 and second bevel gear 22,
First bevel gear 21 is arranged on second driving shaft 6, and second bevel gear 22 is arranged on the first transmission shaft 4, first bevel gear 21
With the engagement of second bevel gear 22 and mutual shaft is vertically axially vertical, the change drive of the first transmission shaft 4 and second driving shaft 6
The outbound course of dynamic device 1.
Wherein, first bevel gear 21 and second bevel gear 22 are curve tooth angular wheel, in first bevel gear 21 and second
The engagement of bevel gear 22 is not impacted during cutting out, and overlap coefficient when transmission is bigger, and with stable drive, noise is small
And the features such as large carrying capacity, tooth is long and there is an opposite sliding in the high direction of tooth, the even wearing of the flank of tooth, second bevel gear 22 with
Connection between first transmission shaft 4 can be key connection, screw connection or integrated formed structure, be in one embodiment key company
It connects, by the way of key connection, is conducive to processing and manufacturing and assembly, when breaking down, the component more renewed can be disassembled,
Reduce cost.
Wherein, the reference diameter of first bevel gear 21 is less than the reference diameter of second bevel gear 22, first bevel gear
21 to second bevel gear 22 be slow down process, since the number of teeth of first bevel gear 21 is less, by first bevel gear 21 and second
The setting of transmission shaft 6 is an integral molding structure, and improves bonding strength between the two and the stability of transmitting, material when reducing processing
Waste.
In some embodiments of the invention, cylindrical gear assemblies 3 specifically include the first roller gear 31, the second Cylinder Gear
Wheel 32 and third roller gear 33, the first roller gear 31 are arranged on the first transmission shaft 4, and the setting of the second roller gear 32 is the
On three transmission shafts 7, third roller gear 33 is arranged on the 4th transmission shaft 8, the first roller gear 31 and the second roller gear 32
Engagement and mutual shaft are axial parallel, the second roller gear 32 and the third of the first transmission shaft 4 with third transmission shaft 7 in parallel
The engagement of roller gear 33 and mutual shaft are that third transmission shaft 7 is axial parallel with the 4th transmission shaft 8 in parallel, do not change second
Bevel gear 22 is transferred to the outbound course of saw blade 5, only changes output revolving speed.
Wherein, reference diameter of the reference diameter of the first roller gear 31 less than the second roller gear 32, the second circle
The reference diameter of stud wheel 32 is greater than the reference diameter of third roller gear 33, and the first roller gear 31 is used as driving wheel,
Second roller gear 32 is used as idle pulley, and third roller gear 33 is used as driven wheel, finally exports by the process slowed down and accelerated,
The centre distance that saw blade 5 Yu driving device 1 are increased by the second roller gear 32, increases the depth of cut of electric circular saw.
Wherein, the first roller gear 31, the second roller gear 32 and third roller gear 33 can for spur gear, helical gear or
Double helical tooth is spur gear in one embodiment, and the cost of spur gear is low, and is easily assembled, the first roller gear 31
Connection between the first transmission shaft 4 can be integrated in one embodiment for key connection, screw is connect or integrated formed structure
First roller gear 31 and the setting of the first transmission shaft 4 are integrated by molding structure since the number of teeth of the first roller gear 31 is less
Molding structure improves bonding strength between the two and the stability of transmitting, the waste of material, the second Cylinder Gear when reducing processing
Wheel 32 and third transmission shaft 7 between connection can for key connection, screw connection or integrated formed structure, in one embodiment for
Key connection, by the way of key connection, the connection between third roller gear 33 and the 4th transmission shaft 8 can be key connection, screw
Connection or integrated formed structure are in one embodiment key connection, by the way of key connection, are conducive to processing and manufacturing and dress
Match, when breaking down, the component more renewed can be disassembled, reduce cost,.
In some embodiments of the invention, driving device 1 includes driving motor 11 and transmission component 12, second driving shaft
6 are attached with the output shaft of driving motor 11 by transmission component 12, specifically, driving gear 121 is arranged in driving motor
On 11 output shaft, driven gear 122 is arranged on one end of second driving shaft 6, and driving gear 121 is nibbled with driven gear 122
It closes and mutual shaft is that second driving shaft 6 is axial parallel with the output shaft of driving motor 11 in parallel, do not change driving motor
The direction of 11 power output, first bevel gear 21 are connected on the other end of second driving shaft 6, form from driving gear 121,
Driven gear 122, first bevel gear 21, second bevel gear 22, the first roller gear 31, the second roller gear 32 arrive third cylinder
The successively transmitting of gear 33.
Wherein, the reference diameter of driving gear 121 be less than driven gear 122 reference diameter, driving gear 121 to
Driven gear 122 is the process slowed down, since the number of teeth of driving gear 121 is less, by driving gear 121 and driving motor 11
Output shaft setting is an integral molding structure, and improves bonding strength between the two and the stability of transmitting, material when reducing processing
Waste.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (10)
1. a kind of electric circular saw characterized by comprising
Driving device (1)；
First transmission shaft (4)；
Transfer gear train, the transfer gear train include the bevel gear assembly (2) being fitted to each other by first transmission shaft (4)
It is axially vertical with the output of cylindrical gear assemblies (3), the axial direction and the driving device (1) of first transmission shaft (4)；
Saw blade (5), the saw blade (5) is connect by the transfer gear train with the driving device (1), and the transmission gear
System is arranged to for the power of the driving device (1) being transferred on the saw blade (5).
2. electric circular saw according to claim 1, which is characterized in that the bevel gear assembly (2), first transmission shaft
(4), the cylindrical gear assemblies (3) and the saw blade (5) are sequentially connected.
3. electric circular saw according to claim 1, which is characterized in that further include second driving shaft (6), the driving device
(1) bevel gear assembly (2) is driven by the second driving shaft (6)；
The bevel gear assembly (2) includes:
First bevel gear (21), the first bevel gear (21) are arranged on the second driving shaft (6)；
Second bevel gear (22), the second bevel gear (22) are arranged on first transmission shaft (4) and bore with described first
Gear (21) engagement, the second bevel gear (22) carry out the cylindrical gear assemblies (3) by first transmission shaft (4)
Transmission.
4. electric circular saw according to claim 1, which is characterized in that further include third transmission shaft (7) and the 4th transmission shaft
(8)；
The cylindrical gear assemblies (3) include:
First roller gear (31), first roller gear (31) are arranged on first transmission shaft (4)；
Second roller gear (32), second roller gear (32) are arranged on the third transmission shaft (7) and with described the
One roller gear (31) engagement；
Third roller gear (33), the third roller gear (33) are arranged on the 4th transmission shaft (8) and with described the
Two roller gears (32) engagement；
The saw blade (5) is connected on the output end of the 4th transmission shaft (8).
5. electric circular saw according to claim 3, which is characterized in that the driving device (1) includes:
Driving motor (11)；
Transmission component (12), the driving motor (11) carry out the second driving shaft (6) by the transmission component (12)
Transmission.
6. electric circular saw according to claim 5, which is characterized in that the transmission component (12) includes:
Driving gear (121), the driving gear (121) are connected on the output shaft of the driving motor (11)；
Driven gear (122), the driven gear (122) be arranged on the second driving shaft (6) and with the driving gear
(121) it engages.
7. electric circular saw according to claim 4, which is characterized in that first transmission shaft (4), the third transmission shaft
(7) the first transmission shaft (4) parallel and described with the axial direction of the 4th transmission shaft (8) and first roller gear (31) are one
Body formula structure.
8. electric circular saw according to claim 3, which is characterized in that the second driving shaft (6) and first transmission shaft
(4) axially vertical and described second driving shaft (6) is an integral structure with the first bevel gear (21).
9. electric circular saw according to claim 6, which is characterized in that the driving gear (121) and the second driving shaft
(6) it is an integral structure.
10. electric circular saw according to claim 3, which is characterized in that the first bevel gear (21) and the second cone tooth
Taking turns (22) is curve tooth angular wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411405.7A CN110170700A (en) | 2019-05-16 | 2019-05-16 | Electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411405.7A CN110170700A (en) | 2019-05-16 | 2019-05-16 | Electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110170700A true CN110170700A (en) | 2019-08-27 |
Family
ID=67691450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910411405.7A Pending CN110170700A (en) | 2019-05-16 | 2019-05-16 | Electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110170700A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201437165U (en) * | 2009-06-04 | 2010-04-14 | 永康市正大实业有限公司 | Mini electric circular saw |
| CN201483077U (en) * | 2009-06-26 | 2010-05-26 | 沈刚毅 | Handheld electric circular saw |
| CN202883892U (en) * | 2012-10-24 | 2013-04-17 | 正阳实业投资有限公司 | Portable cutting machine transmission mechanism |
| CN203738917U (en) * | 2014-01-22 | 2014-07-30 | 制尚电器(浙江)有限公司 | Electric circular saw with increased torsion force |
| CN104772522A (en) * | 2014-01-10 | 2015-07-15 | 苏州宝时得电动工具有限公司 | Handheld cutter |
| CN104772521A (en) * | 2014-01-10 | 2015-07-15 | 苏州宝时得电动工具有限公司 | Handheld cutter |
| CN208644244U (en) * | 2018-08-13 | 2019-03-26 | 浙江通达电器有限公司 | A kind of mini electric circular saw |
-
2019
- 2019-05-16 CN CN201910411405.7A patent/CN110170700A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201437165U (en) * | 2009-06-04 | 2010-04-14 | 永康市正大实业有限公司 | Mini electric circular saw |
| CN201483077U (en) * | 2009-06-26 | 2010-05-26 | 沈刚毅 | Handheld electric circular saw |
| CN202883892U (en) * | 2012-10-24 | 2013-04-17 | 正阳实业投资有限公司 | Portable cutting machine transmission mechanism |
| CN104772522A (en) * | 2014-01-10 | 2015-07-15 | 苏州宝时得电动工具有限公司 | Handheld cutter |
| CN104772521A (en) * | 2014-01-10 | 2015-07-15 | 苏州宝时得电动工具有限公司 | Handheld cutter |
| CN203738917U (en) * | 2014-01-22 | 2014-07-30 | 制尚电器(浙江)有限公司 | Electric circular saw with increased torsion force |
| CN208644244U (en) * | 2018-08-13 | 2019-03-26 | 浙江通达电器有限公司 | A kind of mini electric circular saw |
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Application publication date: 20190827 |
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| RJ01 | Rejection of invention patent application after publication |