CN2871080Y

CN2871080Y - Manual curve saw

Info

Publication number: CN2871080Y
Application number: CN 200620100425
Authority: CN
Inventors: 朱文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-14
Filing date: 2006-01-14
Publication date: 2007-02-21
Anticipated expiration: 2016-01-14

Abstract

The utility model discloses a manual curve saw, which comprises a left and a right hull(1,64), a power switch (35), a speed regulation switch (36), an electromotor, a transmission mechanism (13), a shuttle mechanism (25), a saw blade assembly (68), a wheel frame assembly of saw blade (46), a bottom plate (57), rotates the flat and square block of said stator 90 degrees around the original place to install, be equipped with carbon brush room which is corresponding with collectors places on either sides of left and right housing (1,64), carbon brush holder (61) is fixed in carbon brush room (73), carbon brush (63) is installed on carbon brush holder ( 61), one end of coil spring (62) is equipped on carbon brush holder (61), another end presses on carbon brush (63), matchable carbon brush cover (65) is equipped on carbon brush room (73); the manual curve saw overwhelmed the original jigsaw's false that is difficult to change carbon brush, meanwhile, resolve the shortcomings of complicated structure and installation; the utility model is characterized in simple and reasonable structure, quick and convenient change of carbon brush, easily dismounting, automatic chip removal, fixed electrical machine, etc.

Description

Portable sweep-saw

One, technical field

The utility model relates to a kind of electric cutting tool, particularly a kind of improvement of hand held, electric sweep-saw.

Two, background technology

Hand held, electric sweep-saw in the market can be divided into two classes, one class is the drum type brake electric machine casing, motor, transmission mechanism, reciprocator, handle split design, make up assembling again, carbon brush is installed in the housing both sides of motor, general suitable heavy machine structure, its advantage are that power is big, the life-span long, the carbon brush transposing is convenient, its shortcoming be complex structure, assembling loaded down with trivial details, repair difficulty, product appearance is clumsy mixed and disorderly; Another kind of is left and right sides shell structure, on motor, transmission mechanism, reciprocator are installed in the housing by this preface, carbon brush is upper and lower to be installed in the housing, general suitable light-duty machine structure, its advantage be simple in structure, assembling and repair convenient, good looking appearance is generous, its shortcoming is that power is little, the carbon brush transposing must be taken housing apart, housing is repeatedly after the dismounting, cause that easily screw is loosening, left and right sides housing can't clamp, and causes motor stator can't fix and scrap.More than the also simultaneous disadvantage of sweep-saw of two classes, the one, sweep-saw in use, sawdust can't be got rid of; The 2nd, there is not design to unload the place that handle of a knife is deposited on the existing sweep-saw, unload handle of a knife and in the sweep-saw use, lose easily.

Three, summary of the invention

For overcoming the above-mentioned disadvantage that existing sweep-saw exists, problem to be solved in the utility model just provide a kind of simple in structure, the carbon brush transposing is convenient, fixing reliable, the long service life of motor, good looking appearance is generous and can utilize the portable sweep-saw of motor air draft debris removal.The technical scheme that its technical problem that solves the utility model adopts, it comprises left and right sides housing, power switch, speed-regulating switch, motor, transmission mechanism, reciprocator, the saw blade assembly, saw blade wheel frame assembly, base plate, motor comprises stator, rotor, commutator, centrifugation blade, rotor is arranged on the housing of the left and right sides by bearings at both ends, flat side's shelves of described stator revolve by original position and turn 90 degrees placement, be provided with and the corresponding carbon brush of commutator position chamber in the two sides of left and right sides housing, it is indoor that carbon brush holder is fixed on carbon brush, carbon brush is arranged on the carbon brush holder, one end of disc spring is arranged on the carbon brush holder, the other end is pressed on the carbon brush, and the carbon brush chamber is provided with the carbon brush lid that is complementary.

Reliable in order to ensure the motor fixation, described stator is fixed on the housing of a side by stator.

In order to make sweep-saw chip removal in time in use, the left and right sides housing corresponding with the motor end is provided with air inlet, cooling motor, and the left and right sides housing bottom corresponding with motor head centrifugation blade is provided with the exhaust passage, and the exhaust passage is over against the saw blade cut place in the place ahead.

In order to ensure process velocity and precision, the bottom of described left and right sides housing is provided with the open type battery chamber, is provided with in the dead ahead of left and right sides housing to become 30 ° to 60 ° laser heads with vertical line, and laser beam overlaps with line of cut on the workpiece.

Throw out without care and leave about in order to prevent to unload handle of a knife, between base plate and left and right sides housing, be provided with and unload the handle of a knife storage chamber.

After adopting said structure, motor is fixed on the housing of a side, can prevent loosening motor oscillating, the wearing and tearing that cause of motor, guarantee and each parts between quality of fit, carbon brush is arranged on the both sides of left and right sides housing, the transposing carbon brush can solve in one minute, had thoroughly overcome the defective that original light-duty sweep-saw transposing carbon brush must be taken housing apart, had also solved heavy sweep-saw complex structure, installation is loaded down with trivial details, outward appearance is clumsy shortcoming simultaneously; Characteristics such as have that the transposing of simple and reasonable, carbon brush is efficient and convenient, fixing reliable, the long service life of easy disassembling, chip removal automatically, motor, good looking appearance are generous.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model.

The structural representation that Fig. 2 installs for carbon brush.

Five, the specific embodiment

Illustrated in figures 1 and 2, specific embodiments for the portable sweep-saw of the utility model, it comprises left and right sides housing 1,64, power switch 35, speed-regulating switch 36, motor, transmission mechanism 13, reciprocator 25, saw blade assembly 68, saw blade wheel frame assembly 46, base plate 57, motor comprises stator 2, rotor 5, commutator 6, centrifugation blade 7, rotor 5 is arranged on left and right sides housing 1 by bearings at both ends 8, on 64, the former relatively light-duty sweep-saw stator of described stator 2 revolves and turn 90 degrees installation, two parallel surface horizontal positioned of its stator, stator 2 is fixed on the housing 1 of a side by stator 3, motor is fixedly secured the side at housing 1, can prevent the loosening quality of fit that causes between each parts of motor; Be provided with and corresponding carbon brush chamber, commutator 6 positions 73 in the two sides of left and right sides housing 1,64, carbon brush holder 61 is fixed in the carbon brush chamber 73, carbon brush 63 is arranged on the carbon brush holder 61, one end of disc spring 62 is arranged on the carbon brush holder 61, the other end is pressed on the carbon brush 63, carbon brush chamber 73 is provided with the carbon brush lid 65 that is complementary, when sweep-saw carbon brush 63 need transposings in use, only need open the carbon brush lid 65 on the left and right sides housing 1,64, take out carbon brush holder 61, reinstall carbon brush 63, change efficient and conveniently, can finish in one minute and to be assigned a new job.

In order to make sweep-saw chip removal in time in use, the left and right sides housing 1,64 corresponding with the motor end is provided with air inlet, left and right sides housing 1,64 bottoms corresponding with motor head centrifugation blade 7 are provided with exhaust passage 72, and exhaust passage 72 makes sweep-saw automatic chip removal when work over against the saw blade in the place ahead.

In order to ensure process velocity and precision, the bottom of described left and right sides housing 1,64 is provided with open type battery chamber 44, be provided with in the dead ahead of left and right sides housing 1,64 with vertical line and become 30 ° to 60 ° laser heads 34, best angle is 45 °, and laser beam overlaps with line of cut on the workpiece.

Throw out without care and leave about in order to prevent to unload handle of a knife, between base plate 57 and left and right sides housing 1,64, be provided with and unload handle of a knife storage chamber 60.

Claims

1, a kind of portable sweep-saw, comprise left and right sides housing (1,64), power switch (35), speed-regulating switch (36), motor, transmission mechanism (13), reciprocator (25), saw blade assembly (68), saw blade wheel frame assembly (46), base plate (57), motor comprises stator (2), rotor (5), commutator (6), centrifugation blade (7), rotor (5) is arranged on left and right sides housing (1 by bearings at both ends (8), 64) on, it is characterized in that: flat side's shelves of described stator (2) revolve by original position and turn 90 degrees placement, at left and right sides housing (1,64) two sides are provided with and corresponding carbon brush chamber, commutator (6) position (73), carbon brush holder (61) is fixed in the carbon brush chamber (73), carbon brush (63) is arranged on the carbon brush holder (61), one end of disc spring (62) is arranged on the carbon brush holder (61), the other end is pressed on the carbon brush (63), and carbon brush chamber (73) are provided with the carbon brush lid (65) that is complementary.

2, portable sweep-saw according to claim 1 is characterized in that: described stator (2) is fixed on the housing (1) of a side by stator (3).

3, portable sweep-saw according to claim 1 and 2 is characterized in that: the left and right sides housing (1,64) corresponding with the motor end is provided with air inlet, and the left and right sides housing corresponding with motor head centrifugation blade (7) (1,64) bottom is provided with exhaust passage (72).

4, portable sweep-saw according to claim 3 is characterized in that: the bottom of described left and right sides housing (1,64) is provided with open type battery chamber (44), is provided with in the dead ahead of left and right sides housing (1,64) to become 30 ° to 60 ° laser heads (34) with vertical line.

5, portable sweep-saw according to claim 4 is characterized in that: be provided with between base plate (57) and left and right sides housing (1,64) and unload handle of a knife storage chamber (60).