CN2579584Y

CN2579584Y - Electric multipurpose saw

Info

Publication number: CN2579584Y
Application number: CN 02261669
Authority: CN
Inventors: 吴明根; 金克勤; 方政
Original assignee: 吴明根
Priority date: 2002-11-14
Filing date: 2002-11-14
Publication date: 2003-10-15
Anticipated expiration: 2012-11-14

Abstract

The utility model discloses an electric multipurpose saw. The utility model comprises a housing (7), a motor (44), an upper frame (52), a lower frame (46), a gear (17), a reciprocating swinging mechanism, a saw bit (3) and a saw bit clamping device, wherein the reciprocating swinging mechanism is composed of a swinging core shaft (18), a swinging shaft (49), a swinging bearing sleeve (13), a pressing ring (51), a steel sleeve (53) and an output shaft (16). The swinging core shaft (18) is parallel to a rotor shaft and is arranged between the upper frame (52) and the lower frame (46) through bearings (47, 19), and the swinging shaft (49) is arranged on the swinging core shaft (18) and forms a certain inclination angle; the swinging bearing sleeve (13) and a bearing (14) in the swinging bearing sleeve (13) are arranged on the swinging shaft (49) and are positioned in the axial direction through the pressing ring (51) and the steel sleeve (53), the swinging bearing sleeve (13) is connected with the output shaft (16) through a ball head (57), and an oil containing bearing (12) is respectively matched with the upper frame (52) and the lower frame (46) through a spherical surface. After the structure is used, the utility model has the characteristics of reasonable structure, high rigidity, small vibration, high efficiency, less abrasion, long service life, convenient exchange of the saw bit, etc.

Description

Electronic variety saw

One, technical field

The utility model relates to a kind of electric tool, and particularly a kind of reciprocating saw that not only can be used as uses but also can be used as the hand electric variety saw that sweep-saw etc. uses.

Two, background technology

Existing saw electric tool function of use is single, its output mechanism generally adopts the chute-type conversion equipment to realize that take-off lever moves back and forth, the output device loss of this class formation is big, efficient is low, mechanical strength and poor structure rigidity, life-span are short, whole instrument vibration loaded and unloaded also inconvenience of saw blade greatly when work.

Three, summary of the invention

For overcoming the technical deficiency of above-mentioned existence, problem to be solved in the utility model provide a kind of rational in infrastructure, function is complete, efficient is high, good rigidly, vibration is little, the life-span is short, the electronic easily variety saw of saw blade transposing.The technical scheme that its technical problem that solves the utility model adopts comprises casing, motor, last lower bearing bracket, gear, reciprocal wabbler mechanism, saw blade and fixing device for saw blades, last lower bearing bracket is fixed on the casing, described reciprocal wabbler mechanism is by waving mandrel, wave axle, wave bearing holder (housing, cover), trim ring, steel bushing, output shaft is formed, it is parallel with armature spindle and be arranged on by bearing to wave mandrel, between the lower bearing bracket, wave axle and be arranged on and wave on the mandrel and form certain inclination angle, gear is arranged on to wave on the mandrel with the rotor axis of electric engagement and by straight pin and spool is connected with waving; Wave bearing holder (housing, cover) and its inner bearing and be arranged on and wave on the axle, and by being arranged on the trim ring that waves on the axle and being arranged on the steel bushing axial location of waving on the mandrel; Wave bearing holder (housing, cover) one end and be connected with the chute of output shaft by bulb, the other end is provided with balance weight; Output shaft is arranged on two oiliness bearings, and two oiliness bearings cooperate with last lower bearing bracket sphere respectively and fixed by screw by pressing plate; Output shaft is fixedlyed connected with fixing device for saw blades, and saw blade and fixing device for saw blades are fixed.

Described fixing device for saw blades is made up of hand chuck, soket head cap screw, soket head cap screw pin, and hand chuck is fixedlyed connected with output shaft by the soket head cap screw pin, and saw blade is fixed by soket head cap screw and hand chuck.

Describedly wave bearing holder (housing, cover) and bearing is fixed by circlip for hole.

Be fixed with assist handle on the described casing.

After adopting said structure, back and forth wabbler mechanism moves by the saw blade that oiliness bearing, output shaft drive on the clamping device, adopt sphere to be connected between oiliness bearing and the last lower bearing bracket, oiliness bearing can be regulated automatically, remain oiliness bearing and output shaft on same center line, big in the wearing and tearing that reduced between output shaft and oiliness bearing; Wave bearing holder (housing, cover) and its inner bearing is finished axial location by trim ring and steel bushing, make axial connection more reliable; Wave the chute location of the column part of bearing holder (housing, cover) by bulb and output shaft, thereby eliminated output shaft, saw blade is moved reciprocatingly in its plane reposefully, the vibration when having significantly reduced tool work, beat around the free degree that its center rotates; Casing is provided with assist handle, makes operation lighter, reasonable; Have rational in infrastructure, multiple functional, advantages such as efficient is high, good rigidly, vibration are little, saw blade transposing convenience, long service life.

Four, description of drawings

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

Fig. 2 is the structural representation of the utility model fixing device for saw blades.

Fig. 3 is the structural representation of Fig. 2 A-A section.

Five, the specific embodiment

Shown in Figure 1, specific embodiments for the electronic variety saw of the utility model, it comprises casing 7, motor 44, last

lower bearing bracket

52,46, gear 17, reciprocal wabbler mechanism, saw blade 3 and fixing device for saw blades, last

lower bearing bracket

52,46 are fixed on the casing 7, back and forth wabbler mechanism is by waving mandrel 18, wave axle 49, wave bearing holder (housing, cover) 13, trim ring 51, steel bushing 53, output shaft 16 is formed, it is parallel with armature spindle and by bearing 47 to wave mandrel 18,19 are arranged on, lower bearing bracket 52, between 46, bearing plate 55 is arranged on a side of bearing 47, it is fixing by nut 54 to wave mandrel 18, wave axle 49 and be arranged on and wave on the mandrel 18 and form certain inclination angle, gear 17 be arranged on wave on the mandrel 18 with the rotor axis of electric engagement and by straight pin 15 with wave spools 49 and be connected; Wave bearing holder (housing, cover) 13 and its inner bearing 14 and be arranged on and wave on the axle 49, and wave mandrel 18 and axially connect more reliable by being arranged on the trim ring 51 that waves on the axle 49 and being arranged on steel bushing 53 axial location of waving on the mandrel 18, making; Wave the column part of bearing holder (housing, cover) 13 1 ends by bulb 57 and be connected with the chute of output shaft 16, thereby eliminated output shaft 16 around the free degree that its center rotates, saw blade 3 is moved reciprocatingly in its plane reposefully, the other end is provided with balance weight 56; Output shaft 16 is arranged on two oiliness bearings 12, two oiliness bearings 12 cooperate with last

lower bearing bracket

52,46 spheres respectively and are fixing by screw 9 by pressing plate 11, oiliness bearing 12 can be regulated automatically, remain oiliness bearing 12 and output shaft 16 on same center line, reduce the wearing and tearing of 12 of output shaft 16 and oiliness bearings greatly, thereby guarantee cutting accuracy and increase the service life; Output shaft 16 is fixedlyed connected with fixing device for saw blades, and saw blade 3 is fixed with fixing device for saw blades, and the saw blade outlet of casing 7 is provided with protecgulum 6.In order to eliminate the end play of waving between bearing holder (housing, cover) 13 and the bearing 14, wave bearing holder (housing, cover) 13 and bearing 14 and fix by circlip for hole 50; Lighter in order to operate, efficient, be fixed with assist handle 45 on the casing 7.

Fig. 2 and shown in Figure 3, fixing device for saw blades is made up of hand chuck 2, soket head cap screw 1, soket head cap screw pin 5, hand chuck 2 is fixedlyed connected with output shaft 16 by soket head cap screw pin 5, and saw blade 3 is fixing with hand chuck 2 by soket head cap screw 1, reaches to clamp saw blade 3 purposes.

The course of work of the present utility model is as follows, connect power supply earlier, turn on the power switch, make motor 44 work, motor 44 driven wheels 17, gear 17 drives and waves axle 49 and wave mandrel 18 rotations, wave axle 49 and do the circular cone rotation, wave the bulb 57 of bearing holder (housing, cover) 13 and under the drive of waving axle 49, do swing, the swing of bulb 57 drives output shaft 16 again and does reciprocating linear motion, it is reciprocating that output shaft 16 drives saw blade 3 by fixing device for saw blades, thereby reach the purpose of reciprocating saw or sweep-saw cutting.

Claims

1, a kind of electronic variety saw, comprise casing (7), motor (44), last lower bearing bracket (52,46), gear (17), reciprocal wabbler mechanism, saw blade (3) and fixing device for saw blades, last lower bearing bracket (52,46) be fixed on the casing (7), it is characterized in that: described reciprocal wabbler mechanism is by waving mandrel (18), wave axle (49), wave bearing holder (housing, cover) (13), trim ring (51), steel bushing (53), output shaft (16) is formed, it is parallel with armature spindle and by bearing (47 to wave mandrel (18), 19) be arranged on, lower bearing bracket (52,46) between, wave axle (49) and be arranged on and wave mandrel (18) and go up and form certain inclination angle, gear (17) be arranged on wave mandrel (18) go up with the rotor axis of electric engagement and by straight pin (15) with wave spool (49) and be connected; Wave bearing holder (housing, cover) (13) and its inner bearing (14) and be arranged on and wave on the axle (49), and by be arranged on wave axle on (49) trim ring (51) and be arranged on steel bushing (53) axial location of waving on the mandrel (18); Wave bearing holder (housing, cover) (13) one ends and be connected with the chute of output shaft (16) by bulb (57), the other end is provided with balance weight (56); Output shaft (16) is arranged on two oiliness bearings (12), and two oiliness bearings (12) cooperate with last lower bearing bracket (52,46) sphere respectively and be fixing by screw (9) by pressing plate (11); Output shaft (16) is fixedlyed connected with fixing device for saw blades, and saw blade (3) is fixed with fixing device for saw blades.

2, electronic variety saw according to claim 1, it is characterized in that: described fixing device for saw blades is made up of hand chuck (2), soket head cap screw (1), soket head cap screw pin (5), hand chuck (2) is fixedlyed connected with output shaft (16) by soket head cap screw pin (5), and saw blade (3) is fixing by soket head cap screw (1) and hand chuck (2).

3, electronic variety saw according to claim 1 and 2 is characterized in that: described bearing holder (housing, cover) (13) and the bearing (14) of waving is fixing by circlip for hole (50).

4, electronic variety saw according to claim 3 is characterized in that: be fixed with assist handle (45) on the described casing (7).

5, electronic variety saw according to claim 1 is characterized in that: the saw blade outlet of described casing (7) is provided with protecgulum (6).