CN2631719Y - Brake stopper of electric chain saw - Google Patents
Brake stopper of electric chain saw Download PDFInfo
- Publication number
- CN2631719Y CN2631719Y CN 03256098 CN03256098U CN2631719Y CN 2631719 Y CN2631719 Y CN 2631719Y CN 03256098 CN03256098 CN 03256098 CN 03256098 U CN03256098 U CN 03256098U CN 2631719 Y CN2631719 Y CN 2631719Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- clutch wheel
- output shaft
- castle wheel
- chain saw
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a brake stopping device used by the electrical chain saw, which includes an output shaft, a gear wheel and a clutch wheel. The clutch wheel is connected with the output shaft through a spline and can slide freely on the output shaft. Beside the clutch wheel is a spring installed at the output shaft. The spring works on the clutch wheel. The clutch wheel under the pressure of the spring is connected with the gear wheel through a spline. The clutch wheel has a ratchet and an oblique structure on the exterior surface of the clutch wheel. Beside the clutch wheel are a brake elastic pawl device and a shifting fork device. The shifting fork device can drive the clutch wheel to move along the axial direction, which will separate the clutch wheel and the gear wheel. Meanwhile, the ratchet of the clutch wheel contacts with the elastic pawl. Under the pressure of the elastic pawl, the electrical saw stops working. The utility model makes the electrical chain saw easy and flexible to operated, which greatly improves the working efficiency of the electrical chain saw.
Description
Technical field
The utility model relates to a kind of brake stop device of safety shut-down stop device, particularly a kind of electric chain saw.
Background technology
Current, in the middle of people's productive life, the use of electric chain saw is very general, and the electric chain saw electricity consumption has simple to operate as power, the advantage of high efficiency, but when sawing finished, electric saw just can carry out next operation then because inertia often can not be at once but will be waited a period of time just can stop, so just prolong the time of noise, influenced staff's operating efficiency.In addition, when sawing is obstructed, can cause motor to shut down, burn out motor, influence the service life of electric saw.
Summary of the invention
The technical problem underlying that the utility model solves: when the electric chain saw sawing is finished, saw blade is stopped very soon, make the use of electric chain saw convenient flexibly.
The technical problem that the utility model solves simultaneously: when sawing is obstructed, can protect motor not burnt out.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: this electric chain saw brake stop device comprises output shaft, this output shaft is provided with gear wheel and castle wheel in axial sliding, castle wheel is provided with fork, described castle wheel has ratchet, and its next door is provided with the ratchet that contacts with ratchet.
As preferably, described fork is connected with castle wheel.
As preferably, described castle wheel outer surface has the inclined-plane, and an end of fork also has the inclined-plane, and this inclined-plane contacts with inclined-plane on the castle wheel; Described castle wheel is other to have spring, and an end of spring is arranged on the output shaft or other position, and the other end acts on the castle wheel, and castle wheel meshes with gear wheel under the effect of spring.
As preferably, described spring is a volute spring.
As preferably, described ratchet is a spring leaf, is arranged on the support, and support is connected with housing by rotating shaft, and rotating shaft is provided with torsion spring, and an end of torsion spring is fixed on the housing, and the other end is connected with support.
The beneficial effects of the utility model: owing to have the shape ratchet of bullet and castle wheel in the above-mentioned electric saw brake stop device, has ratchet on the castle wheel, when the electric saw sawing is finished, can make ratchet act on the ratchet on the castle wheel by operation, thereby saw blade is stopped very soon, make the use of electric chain saw become more flexible.
The beneficial effect that the utility model has simultaneously:, when the electric saw sawing is obstructed, can castle wheel be separated with gear wheel by the operation fork, and motor shaft can normally rotate, and can not burn out motor like this because castle wheel can slide along output shaft;
Description of drawings
Fig. 1 is the structure principle chart with electric chain saw of brake stop device;
Fig. 2 is the structure principle chart of the brake stop device of amplification;
Fig. 3 is the bracket component schematic diagram of brake detent;
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1, shown in Figure 2, the end of motor shaft 12 is provided with pinion 11, this pinion 11 and the engagement of gear wheel 6 inscribes, also can be designed to big herein, the circumscribed engagement of little two gears, output shaft 1 is a multidiameter, little shaft part is an optical axis, big shaft part has spline structure, the mesopore of gear wheel 6 is a shoulder hole, on bigger internal surface of hole, be processed with spline, gear wheel 6 can this shaft part be the rotating shaft rotation by little aperture apparatus also on the little shaft part of output shaft 1, the step surface of gear wheel 6 upper shoulder holes contacts with the shaft shoulder on the output shaft 1, the opposite side place of gear wheel 6 has a cannelure on output shaft 1, and open washer 7 is stuck in this cannelure, with the fixing axial location of gear wheel 6.The opposite side of open washer 7 is the bearing 8 of device on output shaft 1, near device on the big shaft part of gear wheel 6 one castle wheel 5 is arranged at output shaft 1, these castle wheel 5 outer surfaces are hierarchic structure, big end outer surface is a ratchet structure 14, certainly this ratchet also can be on the end face of castle wheel, the middle part is the tapered slope structure, the small end outer surface is a spline structure, the mesopore of castle wheel 5 is a splined hole, castle wheel 5 is connected with output shaft 1 by spline, and can on output shaft 1, be free to slide, castle wheel 5 big end left sides are provided with a volute spring 4, can certainly be other springs, and the small end of this volute spring 4 acts on the back-up ring 3, back-up ring 3 is stuck on the output shaft 1 in the cannelure, the big end of volute spring 4 acts on the castle wheel 5, and castle wheel 5 connects with gear wheel 6 engagements by spline under the active force of volute spring 4, and the left side of back-up ring 3 has another bearing 2, be the saw blade tooth driving wheel 13 of device at output shaft 1 axle head then, the saw blade tooth is meshed with this driving wheel 13.When turning on the power switch, the pinion 11 of motor shaft 12 ends rotates, and rotates thereby drive gear wheel 6, gear wheel 6 drives castle wheel 5 again and rotates, castle wheel 5 just drives output shaft 1 and rotates, and output shaft 1 drives saw blade tooth driving wheel 13 and rotates, and drives saw blade at last and rotates.Be provided with brake detent 9 and fork 10 on the next door of castle wheel 5, the end of fork 10 has ramp structure, and this inclined-plane contacts with the inclined-plane at castle wheel 5 middle parts.This brake detent 9 is fixed on the brake support 14 shown in Figure 3: this brake support 14 is connected with the electric saw housing by connecting rotating shaft 15, end at this brake support 14 has an elastic sheet metal with rivet, it is ratchet 9,15 places are provided with a torsion spring 16 in the connection rotating shaft, one end of torsion spring 16 is fixed on the housing, the other end is connected on the support 14, under the active force of torsion spring 16, the elastic sheet metal of brake support 14 ends, promptly ratchet 9 can remain with ratchet 14 on the castle wheel 5 and contact.When sawing finishes with a chainsaw, can handle fork 10, make fork 10 along output shaft 1 radial motion, can make the ramp structure that passes through on fork 10 and the castle wheel 5 produce extruding like this, make castle wheel 5 axially move, thereby castle wheel 5 and gear wheel 6 are separated along output shaft 1, at this simultaneously, castle wheel 5 contacts with ratchet 9, under the effect of ratchet 9, can allow the motion of electric saw bar stop very soon.Certainly, when sawing is obstructed, by allowing castle wheel 5 and gear wheel 6 separate, can under the situation of switch power supply not, protect motor.Certainly fork 10 can be connected on the castle wheel 5, can not want spring like this, just can stir castle wheel back and forth.Stirring of castle wheel can also adopt other to stir device, as long as can stir castle wheel, it is just passable that castle wheel is in axial sliding, and all is the scope of the utility model protection.To such an extent as to fork 10 extends to electric saw hull outside hand and can operate, the fork end that is positioned at hull outside connects a plate, and this plate can be made into the various shapes of being convenient to operate various attractive in appearance.
Claims (5)
1, a kind of electric chain saw brake stop device, comprise output shaft (1), this output shaft (1) is provided with gear wheel (6) and castle wheel (5) in axial sliding, castle wheel (5) is provided with fork (10), it is characterized in that, described castle wheel (5) has ratchet (14), and its next door is provided with the ratchet (9) that contacts with ratchet (14).
2, electric chain saw brake stop device according to claim 1 is characterized in that described fork (10) is connected with castle wheel (5).
3, electric chain saw according to claim 1 brake stop device is characterized in that described castle wheel (5) outer surface has the inclined-plane, and an end of fork (10) also has the inclined-plane, and this inclined-plane contacts with inclined-plane on the castle wheel (5); Described castle wheel (5) side has spring (4), and an end of spring (4) is arranged on output shaft (1) and goes up or other position, and the other end acts on the castle wheel (5), and castle wheel (5) meshes with gear wheel (6) under the effect of spring (4).
4, electric chain saw brake stop device according to claim 3 is characterized in that described spring (4) is a volute spring.
5, according to claim 1 or 2 or 3 or 4 described electric chain saw brake stop devices, it is characterized in that, described ratchet (9) is a spring leaf, be arranged on the support (14), support (14) is connected with housing by rotating shaft (15), rotating shaft (15) is provided with torsion spring (16), and an end of torsion spring (16) is fixed on the housing, and the other end is connected with support (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03256098 CN2631719Y (en) | 2003-07-26 | 2003-07-26 | Brake stopper of electric chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03256098 CN2631719Y (en) | 2003-07-26 | 2003-07-26 | Brake stopper of electric chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2631719Y true CN2631719Y (en) | 2004-08-11 |
Family
ID=34295281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03256098 Expired - Fee Related CN2631719Y (en) | 2003-07-26 | 2003-07-26 | Brake stopper of electric chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2631719Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387409C (en) * | 2005-10-07 | 2008-05-14 | 株式会社牧田 | Chain saw |
-
2003
- 2003-07-26 CN CN 03256098 patent/CN2631719Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387409C (en) * | 2005-10-07 | 2008-05-14 | 株式会社牧田 | Chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |