CN104722836A - Electric circular saw and one-way sliding device thereof - Google Patents
Electric circular saw and one-way sliding device thereof Download PDFInfo
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- CN104722836A CN104722836A CN201310721827.7A CN201310721827A CN104722836A CN 104722836 A CN104722836 A CN 104722836A CN 201310721827 A CN201310721827 A CN 201310721827A CN 104722836 A CN104722836 A CN 104722836A
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- China
- Prior art keywords
- gear
- slidably connected
- sliding floor
- spragging gear
- track plates
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Abstract
The invention discloses an electric circular saw and a one-way sliding device thereof. The electric circular saw comprises a main body which comprises a shell, a motor, a driving mechanism, a saw blade and a control unit; the driving mechanism is capable of driving the saw blade to pivotally rotate under the driving of the motor, and the control unit controls the motor to run; the one-way sliding device comprises a sliding bottom plate and a rail plate which are slidably connected, the sliding bottom plate comprises a bottom plate frame, a braking gear and a braking component capable of enabling the braking gear to rotate unidirectionally, a rail rack capable of being meshed with the braking gear is arranged on the rail plate, and the main body is mounted on the sliding bottom plate or the rail plate to form sliding connection with the other one of siding bottom plate or the rail plate. The electric circular saw and the one-way sliding device thereof have the advantages that a sliding mechanism is combined with a braking mechanism, so that the sliding mechanism can be timely locked in 'recoiling', potential safety hazards of occurrence of dangers are removed, and the electric circular saw and the one-way sliding device thereof are reasonable in structure and capable of effectively preventing 'recoiling'.
Description
Technical field
The present invention relates to a kind of power saws and annex, be specifically related to a kind of electric circular saw and unidirectional carriage thereof.
Background technology
Electric circular saw is a kind of is that power drives saw blade to carry out the instrument of sawing action by transmission mechanism with motor, has safe and reliable, rational in infrastructure, operating efficiency high.
When using electric circular saw, in order to guarantee to cut out straight line, electric circular saw is often furnished with line slideway annex, and when cutting, the main body of electric circular saw is cut along line slideway annex.
Present Problems existing is, existing line slideway annex only plays straight-line guidance effect, and user is when carrying out straight cuts, and saw blade often meets obstructions bounce-back, make the main body of electric circular saw bring potential safety hazard to the opposite direction " recoil " advanced, make in operation, to there is unpredictable danger.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of rational in infrastructure, effectively can prevent the electric circular saw of " recoil " and unidirectional carriage thereof reliably.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Unidirectional carriage:
This unidirectional carriage comprises: form the sliding floor and track plates that are slidably connected, sliding floor comprises: chassis, spragging gear and can make the brake assemblies of spragging gear only one-directional rotation, spragging gear and chassis form and are rotationally connected, and its pivot axis forms perpendicular to sliding floor and track plates the direction be slidably connected; Track plates is provided with the track tooth bar that can engage with spragging gear.
Further, brake assemblies comprises: energy forms the banking pin direction that is slidably connected stretched, energy biasing detent pin near the biased element of spragging gear along sliding floor and track plates.
Further, banking pin comprises near one end of spragging gear: make a concession face and a braking surface for one, the face of yielding tilts crossing with braking surface, and braking surface is parallel to sliding floor and track plates forms the direction be slidably connected; Spragging gear comprises: gear and detent bumps, and detent bumps comprises: the cambered surface profile that can contact with the face of yielding and the straight profiles that can contact with braking surface, cambered surface profile and straight profiles lay respectively at the both sides of detent bumps.
Further, detent bumps is positioned at gear axially side, and its number is two or more, and is uniformly distributed at the circumferencial direction of gear.
Further, banking pin comprises: with the key seat that sliding floor is fixing, the plunger be slidably connected with key seat, key seat and plunger are all formed with step projection, described biased element is helical spring, and it is sleeved on the periphery of key seat and plunger and the step projection that they are formed is withstood at two ends respectively.
Electric circular saw:
This electric circular saw comprises: main body, and main body comprises: shell, motor, transmission mechanism, saw blade and control device, and motor is arranged on the inside of shell, and transmission mechanism can drive saw blade to carry out pivotable under the driving of motor, and control device controls the operation of motor; It also comprises: unidirectional carriage, and main body is arranged on sliding floor or track plates form with another in them and is slidably connected.This unidirectional carriage comprises: form the sliding floor and track plates that are slidably connected, sliding floor comprises: chassis, spragging gear and can make the brake assemblies of spragging gear only one-directional rotation, spragging gear and chassis form and are rotationally connected, and its pivot axis forms perpendicular to sliding floor and track plates the direction be slidably connected; Track plates is provided with the track tooth bar that can engage with spragging gear.
Further, brake assemblies comprises: energy forms the banking pin direction that is slidably connected stretched, energy biasing detent pin near the biased element of spragging gear along sliding floor and track plates.
Further, banking pin comprises near one end of spragging gear: make a concession face and a braking surface for one, the face of yielding tilts crossing with braking surface, and braking surface is parallel to sliding floor and track plates forms the direction be slidably connected; Spragging gear comprises: gear and detent bumps, and detent bumps comprises: the cambered surface profile that can contact with the face of yielding and the straight profiles that can contact with braking surface, cambered surface profile and straight profiles lay respectively at the both sides of detent bumps.
Further, detent bumps is positioned at gear axially side, and its number is two or more, and is uniformly distributed at the circumferencial direction of gear.
Further, banking pin comprises: with the key seat that sliding floor is fixing, the plunger be slidably connected with key seat, key seat and plunger are all formed with step projection, biased element be helical spring, it is sleeved on the periphery of key seat and plunger and to withstand the step that they form respectively protruding at two ends.
Usefulness of the present invention is: be combined with arrestment mechanism by slide mechanism, slide mechanism is locked timely when " recoil ", thus eliminate the potential safety hazard of causing danger, provide a kind of rational in infrastructure, effectively can prevent the electric circular saw of " recoil " and unidirectional carriage thereof reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of electric circular saw of the present invention;
Fig. 2 is the structural representation of the unidirectional carriage example in electric circular saw embodiment illustrated in fig. 1;
Fig. 3 is the structure for amplifying schematic diagram at Fig. 2 centre circle D place.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
Shown in Fig. 3, electric circular saw 100 of the present invention comprises: main body 10 and unidirectional carriage 20, wherein, main body 10 is for realizing the major part of electric circular saw 100 function, it mainly comprises: shell 11, motor (figure does not show, lower same), transmission mechanism (figure does not show, lower same), saw blade 12(Fig. 1 do not show, can see Fig. 2), control device (figure does not show, lower with).Motor is arranged on the inside of shell 11, and transmission mechanism can drive saw blade 12 to carry out pivotable under the driving of motor, and control device controls the operation of motor.
Unidirectional carriage 20 comprises: form the sliding floor 21 and track plates 22 that are slidably connected, sliding floor 21 comprises: chassis 23, spragging gear 24 and can make the brake assemblies 25 of spragging gear 24 only one-directional rotation, spragging gear 24 and chassis 23 form and are rotationally connected, and its pivot axis forms perpendicular to sliding floor and track plates the direction A be slidably connected; Track plates 22 is provided with the track tooth bar 221 that can engage with spragging gear.As preferably, the pivotal axis of spragging gear 24 is also vertical with the pivotal axis B of saw blade 12, and saw blade 12 pivotal axis then forms with sliding floor and track plates the direction A be slidably connected.
Specifically, brake assemblies 25 comprises: energy forms banking pin 26, energy biasing detent pin 26 that the direction A that is slidably connected stretches biased element 27 near spragging gear 24 along sliding floor 21 and track 22 plate.
In order to realize the braking to " recoil ", banking pin 26 comprises near one end of spragging gear 24: make a concession face 261 and a braking surface 262 for one, yielding face 261 tilts crossing with braking surface 262, and braking surface 262 is parallel to sliding floor 21 and track plates 22 forms the direction A be slidably connected; Spragging gear 24 comprises: gear 241 and detent bumps 242, detent bumps 242 comprises: the cambered surface profile 242a that can contact with yielding the face 261 and straight profiles 242b that can contact with braking surface 262, cambered surface profile 242a and straight profiles 242b lays respectively at the both sides of detent bumps 242.
So, as shown in Figures 2 and 3, when the direction that sliding floor 21 advances to cutting (namely in figure, A direction arrow is shown) advances, the gear teeth of the gear 241 of spragging gear 24 coordinate with the bar tooth of track tooth bar 221, spragging gear 24 is rotated in the direction of clockwise (i.e. C arrow in figure) in figure, now detent bumps 242 side cambered surface profile 242a contacts with yielding face 261, because the flexible direction of yielding face 261 relative brake pin 26 is for being inclined-plane, and because cambered surface profile 242a itself has certain radian, so being rotated further along with spragging gear 24, banking pin 26 moves to the direction away from spragging gear 24, after contacting with the outer rim of detent bumps 242 subsequently, when this detent bumps 242 turns over the position of corresponding banking pin 26, banking pin 26 resets under the effect of biased element 27, be inserted between adjacent detent bumps 242, when " recoil " occurs, spragging gear 24 reverses, now due to the contact of straight profiles 242b and braking surface 262, the driving force of banking pin 26 in telescopic direction can not be supplied to, so now banking pin 26 blocks corresponding detent bumps 242, spragging gear 24 is made not reverse and then to make gear pair locked, make sliding floor 21 and track plates 22 can not reverse slide, thus inhibit the generation of " recoil ".
As a kind of preferred version, detent bumps 242 is positioned at gear axially side, and its number is two or more, and is uniformly distributed at the circumferencial direction of gear 241.
It should be noted is that, for brake reaction time, detent bumps that yes 242 is The more the better, but considers the structural strength of banking pin 26 size and detent bumps 242, and as preferably, the number of detent bumps 242 is 6.
In addition, as a kind of preferred version, banking pin 26 can adopt following way of realization:
Banking pin 26 comprises: with the key seat 261 that sliding floor 21 is fixing, the plunger 262 be slidably connected with key seat 261, and plunger 262 forms yielding face 261 and braking surface 262 near spragging gear 24 relatively; Key seat 261 and plunger 262 are all formed with step protruding 261a, 262a, and biased element 27 is helical spring, and it is sleeved on the periphery of key seat 261 and plunger 262 and step protruding 261a, 262a that they are formed is withstood at two ends respectively.
It should be noted that, main body 10 both can be arranged on sliding floor 21 forms with sliding panel 22 and be slidably connected, and also can be arranged on sliding panel 22 forms with sliding floor 21 to be slidably connected.In the present embodiment, employing be that main body 10 is arranged on sliding floor 21.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (10)
1. a unidirectional carriage, comprise: form the sliding floor and track plates that are slidably connected, it is characterized in that, described sliding floor comprises: chassis, spragging gear and can make the brake assemblies of described spragging gear only one-directional rotation, described spragging gear and chassis form and are rotationally connected, and its pivot axis forms perpendicular to described sliding floor and track plates the direction be slidably connected; Described track plates is provided with the track tooth bar that can engage with described spragging gear.
2. unidirectional carriage according to claim 1, it is characterized in that, described brake assemblies comprises: energy forms banking pin described in the banking pin direction that is slidably connected stretched, an energy bias voltage near the biased element of described spragging gear along described sliding floor and track plates.
3. unidirectional carriage according to claim 2, it is characterized in that, described banking pin comprises near one end of described spragging gear: make a concession face and a braking surface for one, described yielding face tilts crossing with braking surface, and described braking surface is parallel to described sliding floor and track plates forms the direction be slidably connected; Described spragging gear comprises: gear and detent bumps, described detent bumps comprises: the cambered surface profile that can contact with described yielding face and the straight profiles that can contact with described braking surface, described cambered surface profile and straight profiles lay respectively at the both sides of described detent bumps.
4. unidirectional carriage according to claim 3, is characterized in that, described detent bumps is positioned at described gear axially side, and its number is two or more, and is uniformly distributed at the circumferencial direction of described gear.
5. unidirectional carriage according to claim 4, it is characterized in that, described banking pin comprises: with the key seat that described sliding floor is fixing, the plunger be slidably connected with described key seat, described key seat and plunger are all formed with step projection, described biased element is helical spring, and it is sleeved on the periphery of described key seat and plunger and the step projection that they are formed is withstood at two ends respectively.
6. an electric circular saw, comprise: main body, described main body comprises: shell, motor, transmission mechanism, saw blade and control device, described motor is arranged on the inside of described shell, described transmission mechanism can drive described saw blade to carry out pivotable under the driving of described motor, and described control device controls the operation of described motor; It is characterized in that, also comprise: the unidirectional carriage described in claim 1, described main body is arranged on described sliding floor or track plates form with another in them and is slidably connected.
7. unidirectional carriage according to claim 6, it is characterized in that, described brake assemblies comprises: energy forms banking pin described in the banking pin direction that is slidably connected stretched, an energy bias voltage near the biased element of described spragging gear along described sliding floor and track plates.
8. unidirectional carriage according to claim 7, it is characterized in that, described banking pin comprises near one end of described spragging gear: make a concession face and a braking surface for one, described yielding face tilts crossing with braking surface, and described braking surface is parallel to described sliding floor and track plates forms the direction be slidably connected; Described spragging gear comprises: gear and detent bumps, described detent bumps comprises: the cambered surface profile that can contact with described yielding face and the straight profiles that can contact with described braking surface, described cambered surface profile and straight profiles lay respectively at the both sides of described detent bumps.
9. unidirectional carriage according to claim 8, is characterized in that, described detent bumps is positioned at described gear axially side, and its number is two or more, and is uniformly distributed at the circumferencial direction of described gear.
10. unidirectional carriage according to claim 9, it is characterized in that, described banking pin comprises: with the key seat that described sliding floor is fixing, the plunger be slidably connected with described key seat, described key seat and plunger are all formed with step projection, described biased element is helical spring, and it is sleeved on the periphery of described key seat and plunger and the step projection that they are formed is withstood at two ends respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721827.7A CN104722836B (en) | 2013-12-24 | 2013-12-24 | Electric circular saw and one-way sliding device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721827.7A CN104722836B (en) | 2013-12-24 | 2013-12-24 | Electric circular saw and one-way sliding device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104722836A true CN104722836A (en) | 2015-06-24 |
| CN104722836B CN104722836B (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310721827.7A Expired - Fee Related CN104722836B (en) | 2013-12-24 | 2013-12-24 | Electric circular saw and one-way sliding device thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104722836B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191101466A (en) * | 1911-01-19 | 1911-12-14 | Wendell Phillips Bosworth | Improvements in Cross Cutting Machines. |
| CN101468408A (en) * | 2007-12-26 | 2009-07-01 | 株式会社牧田 | Sliding table for cutting machine |
| CN101628348A (en) * | 2008-07-14 | 2010-01-20 | 株式会社牧田 | Cutting device |
| DE102009016415A1 (en) * | 2009-04-04 | 2010-10-28 | Sbs Sondermaschinen Gmbh | Sawing machine for use in production of well filter, has automatic exhaust device with sawing dust collecting trough, suction nozzle fastened at sawing unit, and valve flap that switches suction air from trough to saws |
| CN201871809U (en) * | 2010-11-11 | 2011-06-22 | 江苏宝力重工科技有限公司 | Sawing machine for on-line pipe cutting |
| CN103042271A (en) * | 2012-12-29 | 2013-04-17 | 浙江兰通空调设备有限公司 | Workpiece sawing equipment |
-
2013
- 2013-12-24 CN CN201310721827.7A patent/CN104722836B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191101466A (en) * | 1911-01-19 | 1911-12-14 | Wendell Phillips Bosworth | Improvements in Cross Cutting Machines. |
| CN101468408A (en) * | 2007-12-26 | 2009-07-01 | 株式会社牧田 | Sliding table for cutting machine |
| CN101628348A (en) * | 2008-07-14 | 2010-01-20 | 株式会社牧田 | Cutting device |
| DE102009016415A1 (en) * | 2009-04-04 | 2010-10-28 | Sbs Sondermaschinen Gmbh | Sawing machine for use in production of well filter, has automatic exhaust device with sawing dust collecting trough, suction nozzle fastened at sawing unit, and valve flap that switches suction air from trough to saws |
| CN201871809U (en) * | 2010-11-11 | 2011-06-22 | 江苏宝力重工科技有限公司 | Sawing machine for on-line pipe cutting |
| CN103042271A (en) * | 2012-12-29 | 2013-04-17 | 浙江兰通空调设备有限公司 | Workpiece sawing equipment |
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| Publication number | Publication date |
|---|---|
| CN104722836B (en) | 2017-04-19 |
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Granted publication date: 20170419 Termination date: 20201224 |