CN102416503B

CN102416503B - Multifunctional saw

Info

Publication number: CN102416503B
Application number: CN 201110400514
Authority: CN
Inventors: 聂世和
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2013-08-21
Anticipated expiration: 2031-12-06
Also published as: CN102416503A

Abstract

The invention discloses a multifunctional saw, which comprises a shifting fork driven by a driving unit, a main shaft which is pushed by the shifting fork to rotate and a saw bit which is driven by a main shaft to rotate. The multifunctional saw is characterized by also comprising a balance weight which can rotate on the shifting fork and of which the rotating direction is opposite to the rotating direction of the saw bit. The multifunctional saw disclosed by the invention has the characteristics that: through regulation by a regulating structure consisting of the balance weight, a connecting rod, a positioning pin and a regulating shaft, the motion balance between the balance weight and the saw bit can be achieved, the vibration of the saw bit which is in a cutting state is relieved effectively, and the comfort of an operator is enhanced; and thus, the hand fatigue caused by vibration to the operator is relieved, and the working efficiency is improved.

Description

Multifunctional saw

Technical field

The present invention relates to a kind of multifunctional saw, belong to the electric tool technical field.

Background technology

During the cutting of existing multi-purpose tool, because of the eccentric motion of cutting blade on the instrument, can cause very big vibration, operating personnel's feel is poor, and fatiguability during long-time handheld tool influences operating efficiency.

Summary of the invention

Technical problem to be solved by this invention provides a kind of multifunctional saw that has the balance adjustment structure, can regulate the vibration of multifunctional saw, makes it reach balance, reduces vibration, the comfortable feel degree when the raising operating personnel operate.

For solving the problems of the technologies described above, the invention provides a kind of multifunctional saw, comprise by the shift fork of drive unit drives, by shift fork stir the main shaft of rotation, by the saw blade of main shaft driven rotary motion, it is characterized in that also comprising one can be around the different balance weight of direction of rotation of described shift fork rotation and direction of rotation and described saw blade.

One rotating connecting rod is set between described balance weight and the described shift fork, and the alignment pin that described connecting rod can be regulated between described balance weight and described shift fork around a position rotates.

Described connecting rod one end inserts in the jack on the described shift fork, and the other end inserts in the interlock hole of described balance weight.

Also be provided with two recess on the described connecting rod other end, described recess is located at the both sides of the direction of described connecting rod rotation.

Also comprise one and regulate the regulating shaft of described alignment pin position.

Described regulating shaft comprises the eccentric structure that rotates of stirring with described knob that is suitable for the different quality saw blade is stirred knob, the other end setting of adjusting of an end setting, comprise on the described eccentric structure a plurality of can with the contacted eccentric adjusting face of described alignment pin.

Described alignment pin one end penetrates in the described connecting rod, and the other end contacts with described eccentric structure.

Described connecting rod sheathed axle sleeve on described alignment pin rotates.

Comprise one on the described eccentric structure and rotate and can snap in locking projection in the locking hole of balance weight one end with it.

When the rotation of described eccentric structure drove in the locking hole that described locking projection inserts described balance weight one end, described eccentric structure promoted described alignment pin and moves up and down to making the recess on the described connecting rod other end be positioned at described interlock hole.

The beneficial effect that the present invention reaches:

Multifunctional saw of the present invention is by the adjusting of the balance adjustment structure that is made of balance weight, connecting rod, alignment pin, regulating shaft, the motion of balance weight and saw blade is balanced each other, vibration when effectively reducing the saw blade cutting, improve operating personnel's comfort, thereby further reduce operating personnel because of the hand sense of fatigue that vibration causes, increase work efficiency.

Description of drawings

Fig. 1 is the multifunctional saw schematic diagram;

Fig. 2 is the schematic cross-section of Fig. 1;

Fig. 3 is connecting rod schematic diagram among Fig. 1;

Fig. 4 is regulating shaft schematic diagram among Fig. 1;

Fig. 5 is balance weight schematic diagram among Fig. 1;

Among the figure, body of tool 1; Balance weight 2; Interlock hole 21; Locking hole 22; Main shaft 3; Balance regulator 4; Shift fork 5; Jack 51; Drive system 6; Saw blade 7; Connecting rod 8; One end 81; The other end 82; Flat position 83; Slide block 9; Axle sleeve 10; Alignment pin 11; Regulating shaft 12; Eccentric structure 121; Knob 122; Locking projection 123; Adjusting range 124.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.

As shown in Figure 1 and Figure 2, multifunctional saw body of tool 1 of the present invention drives driver element 6 by motor, and driver element 6 will rotatablely move by eccentric structure and be delivered to shift fork 5, and shift fork 5 is connected with main shaft 3, and main shaft 3 drives saw blade 7 and rotatablely moves.

For vibration balancing, the present invention is provided with a balance regulator 4 at multifunctional saw, comprise that jack 51 interior connecting rod 8, the ends that an end 81 inserts on the shift fork 5 penetrate alignment pin intracardiac in the connecting rod 8 11, be connected by an axle sleeve 10 between alignment pin and the connecting rod 8, connecting rod 8 can be rotated around alignment pin 11 by axle sleeve 10, and bar linkage structure as shown in Figure 3.Connecting rod 8 other ends 82 insert in the interlock hole 21 of balance weights 2 one ends, balance block structure as shown in Figure 5, balance weight 2 one ends and the interlock hole 21 adjacent locking holes 22 that also are provided with.Regulating shaft 12 eccentric structures 121 are provided with a locking projection 123, and locking projection 123 can snap in the locking hole 22 of balance weight 2 one ends.

Alignment pin 11 other ends contact with eccentric structure 121 on the regulating shaft 12, and regulating shaft 12 1 ends are eccentric structures 121, and the other end is to be suitable for the knob 122 that hand is stirred adjusting.The regulating shaft structure as shown in Figure 4, when being stirred knob 122 regulating shaft 12 is rotated by hand, the motion of its eccentric structure 121 drives location lock 11 and moves up and down, the motion of alignment pin 11 drivening rod 8 simultaneously moves up and down.

Connecting rod 8 one ends 81 embed in the jack 51 of shift fork 5, when shift fork 5 is stirred by driver element 6 drivings, and then axle sleeve 10 rotations of drivening rod 8 one ends 81 on alignment pin 11, connecting rod 8 other ends rotate thereupon and drive balance weight 2 around shift fork 5 rotations.When clockwise direction rotated when shift fork 5 was namely overlooked by the direction of A shown in Fig. 2, drive shaft 3 clockwise rotates, saw blade 7 on the main shaft 3 clockwise rotates thereupon, at this moment, the rotation of shift fork 5 drivening rods 8 one ends, connecting rod 8 direction of rotation are B direction shown in Fig. 2, connecting rod 8 other ends 82 insert in the interlock hole 21 of balance weight 2, the rotation of connecting rod 8 then drives balance weight 2 and rotates counterclockwise around main shaft 3, balance weight 2 is opposite with the direction of rotation of saw blade 7, thereby the realization balance exercise, the vibration that produces when offsetting saw blade 7 motions.

Balance regulator 4 can carry out balance adjustment according to the quality of different saw blades 7, the knob 122 that regulating shaft 12 arranges in the present embodiment is 4 grades, when different quality saw blade 7 is regulated, can reach the effect of balance by adjusting knob 122, concrete mode is as follows: eccentric structure 121 is corresponding on the regulating shaft 12 is provided with four different eccentric adjusting faces 124, rely on different adjustment face 124 positions of eccentric structure 121 on the regulating shaft 12 to contact with alignment pin 11, the position difference that moves up and down of alignment pin 11 like this, the position that its drivening rod 8 other ends 82 insert in the balance weight 2 interlock holes 21 is also different, when connecting rod 8 rotational angles are constant, does not wait in the path that the diverse location place rotates on the connecting rod 8, the rotation amplitude difference of balance weight 2, thereby can realize that balance weight 2 matches with the rotation amplitude of saw blade 7, reaches statokinetic adjusting purpose.

Alignment pin 11 passes a slide block 9 simultaneously, and when being stirred knob 122 regulating shaft 12 is rotated by hand, the motion of its eccentric structure 121 drives alignment pin 11 and moves up and down, and drives slide block 9 when alignment pin 11 moves up and down and moves up and down.

The other end 82 that connecting rod 8 inserts balance weight 2 is provided with flat position 83, two places, when not needing vibration balancing, can stir knob 122 makes regulating shaft 12 turn to 0 gear, at this moment, the eccentric structure 121 of regulating shaft 12 is adjusted to alignment pin 11 flat 83 interlock hole 21 that is positioned at balance weight 2, two places of drivening rod 8 just; Locking projection 123 on the eccentric structure 121 of regulating shaft 12 is rotated in the locking hole 22 that snaps in balance weight 2 one ends just simultaneously, balance weight 2 stop motions this moment.

The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.

Claims

1. multifunctional saw, comprise by the shift fork of drive unit drives, by shift fork stir the main shaft of rotation, by the saw blade of main shaft driven rotary motion, it is characterized in that also comprising one can be around the different balance weight of direction of rotation of described main axis rotation and direction of rotation and described saw blade;

One rotating connecting rod is set between described balance weight and the described shift fork, and the alignment pin that described connecting rod can be regulated between described balance weight and described shift fork around a position rotates;

2. multifunctional saw according to claim 1 is characterized in that, also is provided with two recess on the described connecting rod other end, and described recess is located at the both sides of the direction of described connecting rod rotation.

3. multifunctional saw according to claim 2 is characterized in that, also comprises one and regulates the regulating shaft of described alignment pin position.

4. multifunctional saw according to claim 3, it is characterized in that, described regulating shaft comprises the eccentric structure that rotates of stirring with described knob that is suitable for the different quality saw blade is stirred knob, the other end setting of adjusting of an end setting, comprise on the described eccentric structure a plurality of can with the contacted eccentric adjusting face of described alignment pin.

5. multifunctional saw according to claim 4 is characterized in that, described alignment pin one end penetrates in the described connecting rod, and the other end contacts with described eccentric structure.

6. multifunctional saw according to claim 5 is characterized in that, described connecting rod sheathed axle sleeve on described alignment pin rotates.

7. multifunctional saw according to claim 4 is characterized in that, comprises one on the described eccentric structure and rotates and can snap in locking projection in the locking hole of balance weight one end with it.

8. multifunctional saw according to claim 7, it is characterized in that, when the rotation of described eccentric structure drove in the locking hole that described locking projection inserts described balance weight one end, described eccentric structure promoted described alignment pin and moves up and down to making the recess on the described connecting rod other end be positioned at described interlock hole.