CN2776607Y

CN2776607Y - Regulating mechanism of chain saw

Info

Publication number: CN2776607Y
Application number: CN 200520016646
Authority: CN
Inventors: 陈勇
Original assignee: Individual
Current assignee: Zhejiang YAT Electrical Appliance Co Ltd
Priority date: 2004-12-23
Filing date: 2005-04-15
Publication date: 2006-05-03
Anticipated expiration: 2015-04-15

Abstract

The utility model relates to a regulating mechanism of a chain saw, which comprises a rotary mechanism, an adjusting mechanism and a bottom, wherein the rotary mechanism comprises a button, a spring, a rotary disk and an end cover on which a circular hole is arranged; the periphery of the circular hole is provided with a circle of tines, and a plurality of buckles are uniformly distributed at one side of the rotary disk along the circumference. The rotary disk is limited on the circular hole of the end cover via the buckles on the rotary disk, and a column is arranged in the middle of the button. A groove is arranged on the column, and the spring is sheathed on the column which passes through the rotary disk to be fixed on the groove by a check ring. The adjusting mechanism comprises a push plate, a spiral wheel and a chain plate. The push plate is fixed on the chain plate via a screw, and the middle parts of the chain plate and push plate are both provided with regulating grooves. An arc-shaped bulge is arranged on the edge of the push plate groove, and a circle of tines are arranged in the middle of one surface of the spiral wheel; the other surface is provided with a plurality of circles of spiral grooves, and the bulge on the push plate is just plugged in the grooves and can be moved in the grooves. The bottom is provided with a drive sprocket and a platform on which a fixed bolt and a guide post, and the adjusting mechanism and the rotary mechanism are fixed on the bottom via the bolt and the button.

Description

The guiding mechanism of chain saw

Technical field

The utility model relates to a kind of guiding mechanism of chain saw, particularly a kind ofly directly regulates the guiding mechanism of chain degree of tightness by fixing the rotating mechanism on it.

Background technology

The guiding mechanism of existing chain saw, as the disclosed chain saw guiding mechanism of U.S. Pat P5491899, it comprises: a rotating disc A, a dust cap B has a hole B2, a projection B3; One driving-disc C has a centre bore C1, a circle guiding groove C2; The moving sheet E of one U type structure has projection E1, E2; One carrier bar F, porose F2, an open slot F3; One holder G has a screw rod G2 and a guiding protruded stigma G3; The annexation of each several part is seen Fig. 8.The adjustment of this chain saw is meshed with the circle guiding groove C2 of this driving-disc C by the projection E1 of moving sheet E, drive driving-disc C rotation and make and moving sheet E is moved via rotation adjustment dish A, move to the left or to the right thereby drive the fairlead F that connects on it, make that the tension force of chain saw is adjusted.Yet because driving-disc C only encloses helix with one, so the distance one that chain saw is adjusted regularly, and required turning moment is bigger, is not easy to regulate.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned defective of prior art and guiding mechanism that a kind of chain saw is provided, reaches that required adjustment power is less, not fragile, the life-span long, be difficult for loosening purpose.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

The guiding mechanism of chain saw comprises:

One rotating mechanism comprises button, spring, rotating disc, end cap,

One circular hole is arranged on the described end cap,

Described rotating disc one side is along circumference several buckles that evenly distribute, and rotating disc is limited to by the buckle on it on circular hole of end cap,

In the middle of the described button cylinder is arranged, fluted on the cylinder, spring housing is on cylinder, and cylinder passes rotating disc and is fixed on the groove by back-up ring;

One governor motion, comprise push pedal, wheel, carrier bar spiral, push pedal is fixed on the carrier bar by screw, regulating tank is all arranged in the middle of carrier bar and the push pedal, the bar arc-shaped protrusions is arranged on the push pedal trough rim, arrange a circle tooth in the middle of the wheel one side of spiraling, another side has a few spiral grooves, projection in the push pedal just embeds in the groove, and can move in groove;

One bottom is fixed with drive sprocket, a platform, and set bolt and lead are arranged on the platform, and described governor motion and rotating mechanism are fixed on the bottom by bolt, button.

When needs are regulated chain, release button, the rotating disc of adjusting rotating mechanism rotates the wheel that spirals by the tooth on the cingulum Moving plate spinning roller of rotating disc, thereby the sprocket wheel that drives push pedal by the spiral groove on the wheel that spirals by the projection in the push pedal again and be fixed in the push pedal moves the tension chain.

Compared with prior art, advantage of the present utility model is: the cooperating and move of the multi-circle spiral flow groove that adopts the wheel that spirals and the single arc convex of push pedal, therefore when uniform distances, the adjusting chain saw is light, laborsaving, and can not damage the wheel that spirals, increase the service life.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model embodiment one side;

Fig. 2 is the three-dimensional exploded view of the utility model embodiment another side;

Fig. 3 is the vertical view of the utility model embodiment;

Fig. 4 is the A--A cutaway view of Fig. 3;

Fig. 5 is the fiting relation figure of spiral wheel and the push pedal of the utility model embodiment;

Fig. 6 is the another fiting relation figure of spiral wheel and the push pedal of the utility model embodiment;

Fig. 7 is the three-dimensional exploded view of the guiding mechanism of existing chain saw.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, the guiding mechanism of chain saw comprises:

One rotating mechanism 7 is made of button 75, spring 74, rotating disc 73, end cap 72,

In the middle of the button 75 cylinder 751 is arranged, trough of belt 752 on the cylinder,

One circular hole 721 is arranged on the end cap 72,

Rotating disc 73 1 sides are along even three buckles 731 that distribute of circumference, and rotating disc 73 is limited on the circular hole 722 of end cap 72, as shown in Figure 4 by the buckle on it 731;

One governor motion 6, form by push pedal 63, the wheel 66 that spirals, carrier bar 62, push pedal 63 is fixed on the carrier bar 62 by screw 61, in the middle of carrier bar 62 and the push pedal 63 regulating tank 621,631 is arranged all, on push pedal 63 trough rims bar arc-shaped protrusions 632 is arranged, arrange a circle tooth 661 in the middle of wheel 66 one sides of spiraling, another side has a few spiral grooves 662, projection 632 in the push pedal 63 just embeds wherein, and can move in groove 662;

One bottom 1, on have by axle 2 and circlip 4 fixing drive sprocket 3, a platform 12, set bolt 15 and lead 16 are arranged on the platform 12, axle 2 can be connected with driving mechanism, as motor.

Button 75, spring 74, rotating disc 73 are lumped together, spring 74 is enclosed within on the intermediate cylindrical 751 of button, and pass the middle circular hole of rotating disc 73, and be stuck in by elastic ring 71 in the groove 752 on the cylinder 751 of button 75 and fix, be limited in the circular hole 721 of end cap 72 by the buckle on the rotating disc 73 731 again;

Pressing plate 67, the wheel 66 that spirals are fixed together with push pedal 63 usefulness adapter sleeves 64 and jump ring 68, the boss 632 of push pedal 63 must be put into the groove 661 of the wheel 66 that spirals again.In order to allow the not directly friction between wheel 66 and the push pedal 63 of spiraling, between this, add one and adjust pad 65, make its rotation more light.

The push pedal after the combination 63 and wheel 66 assemblies that spiral are fixed together with lock-screw 61 and carrier bar 62, and the projection 633 in the push pedal 63 is buckled in the hole 622 of push pedal 62, fixes better.

When being installed in the above-mentioned parts that each combines preface successively on the bottom 1, hole, back in the middle of the wheel that spirals that the bolt 15 of bottom on 1 just pass groove 621 on the carrier bar 62 on the governor motion 6, the groove 631 in the push pedal 63, combine are tightened by button, chain 5 is enclosed within on carrier bar 62 and the sprocket wheel 6, but just operate as normal of chain saw.

When chain 5 pine of chain saw, button 75 turns clockwise, under spring 74 effects, button 75 leaves adjusting knob, and the groove on the button leaves the projection on the rotating disc at this moment, therefore the tooth on the buckle can be beated on the tooth on the end cap inner ring, therefore can rotate rotating disc, take turns the helicla flute of opposite side, drive the projection of push pedal 62 again thereby rotating disc drives to spiral by the center tooth on the cingulum Moving plate spinning roller in the middle of it, make carrier bar to overhanging and locking chain 5, as Fig. 5, shown in Figure 6.

In like manner, when chain 5 tensions of chain saw, be rotated counterclockwise button 75, carrier bar is inwardly contracted and loosen chain 5.

When chain saw normally uses, tighten button 75, whole chain saw is just fixing.

There is a circle chimb 663 on wheel 66 limits of spiraling, when it fastens with rotating disc, can tight seal, thus chain saw when using the chip of generation can not enter in the guiding mechanism, can not influence the adjusting of rotating disc.

Claims

1, the guiding mechanism of chain saw is characterized in that: comprising:

One rotating mechanism comprises button, spring, rotating disc, end cap,

One circular hole is arranged on the described end cap,

One bottom, on be fixed with drive sprocket, a platform, set bolt and lead are arranged on the platform, described governor motion and rotating mechanism by bolt, button be fixed on the bottom.

2, the guiding mechanism of chain saw as claimed in claim 1 is characterized in that: there is a circle chimb on the described wheel limit of spiraling, fastens with rotating disc.

3, the guiding mechanism of chain saw as claimed in claim 1 or 2 is characterized in that: the described wheel that spirals is fixed together with adapter sleeve and jump ring with push pedal.

4, the guiding mechanism of chain saw as claimed in claim 1 or 2 is characterized in that: described spiraling has one to adjust pad between wheel and the push pedal.

5, the guiding mechanism of chain saw as claimed in claim 3 is characterized in that: described spiraling has one to adjust pad between wheel and the push pedal.