CN2504022Y

CN2504022Y - Electric multipurpose saw

Info

Publication number: CN2504022Y
Application number: CN 01254263
Authority: CN
Inventors: 金克勤; 叶方政
Original assignee: ZHONGJIAN TOOL MANUFACTURE CO Ltd YONGKANG CITY
Current assignee: ZHONGJIAN TOOL MANUFACTURE CO Ltd YONGKANG CITY
Priority date: 2001-10-16
Filing date: 2001-10-16
Publication date: 2002-08-07
Anticipated expiration: 2011-10-16

Abstract

The utility model discloses a multi-used electric saw, which comprises a shell(8), a motor(30), a power switch(20), a reciprocating swing device, a saw blade (4) and a saw-blade clamping device; the reciprocating swing device comprises front and rear brackets (44, 31), a gear(33), a swing spindle(41), a swing shaft(43), a swing bearing sleeve(10) and a reciprocating rod (9); the swing spindle (41) is parallel to the output shaft of the motor and is arranged on the front and rear brackets(44, 31); the swing shaft(43) and the swing spindle (41) form a certain bevel; the swing spindle (41) is connected with the gear (33) of the swing shaft(43); the bearing (11) and the swing bearing sleeve (10) are arranged on the swing shaft (43); one end of the swing bearing sleeve (10) is cooperated and connected with the reciprocating rod (9) by a ball end; the reciprocating rod (9) is connected with the front and rear brackets (44, 31) by a bearing containing oil (15); the reciprocating rod (9) is connected with the saw-blade clamping device by a connecting rod (23). Due to the structure of the utility model, the utility model has the advantages of reasonable structure, full function, high efficiency, good rigidity, small vibration, convenient replacement of saw blades, less mechanical wear, and long service life.

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 is waited until use.

Two, background technology

Present 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, the instrument body vibration is big when work, and the loading and unloading saw blade is also inconvenient.

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, little, the electronic easily variety saw of saw blade transposing of vibration.The technical solution adopted in the utility model is to comprise casing, motor, power switch, reciprocal wabbler mechanism, saw blade and fixing device for saw blades, and back and forth wabbler mechanism comprises front and back support, gear, waves mandrel, waves axle, waves bearing holder (housing, cover), reciprocating lever; Front and back support is fixed on the casing, the engagement of gear and rotor axis of electric, and it is parallel with rotor axis of electric and be arranged between the front and back support to wave mandrel, waves spool and waves mandrel and form certain inclination angle; Wave mandrel and wave axle and be connected with gear successively and arrive to jump ring, fix with nut after passing steel bushing and bearing together by straight pin; Bearing and wave bearing holder (housing, cover) and be arranged on and wave on the axle waves bearing holder (housing, cover) one end and is connected by bulb and reciprocating lever, other end band one balance weight; Reciprocating lever is connected with front and back support by oiliness bearing, and reciprocating lever is connected by connecting rod with fixing device for saw blades; Wave bearing holder (housing, cover) and bearing, wave washer is fixed by circlip for hole; Waving axle, wave washer and bearing inner race is fixed by circlip for shaft; Oiliness bearing cooperates with front and back support successively by the face of cylinder, and is compressed by the oiliness bearing pressing plate by screw.After adopting said structure, back and forth wabbler mechanism drives the fixing device for saw blades motion by oiliness bearing, reciprocating lever and connecting rod, has changed original gliding style conversion equipment, and structure more becomes rationally, both can be used as reciprocating saw and has used, and also can be used as sweep-saw and uses; Between interconnective structure, reduce movement space, the vibration when having significantly reduced tool work, beat; Have rational in infrastructure, multiple functional, advantages such as efficient is high, good rigidly, vibration is little, the saw blade transposing is convenient, mechanical wear is few, the life-span is long.

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, be the specific embodiments of a kind of electronic variety saw of the present utility model, it comprises casing 8, motor 30, power switch 20, reciprocal wabbler mechanism, saw blade 4 and fixing device for saw blades; Back and forth wabbler mechanism comprises front and back support 45,31, gear 33, waves mandrel 41, waves axle 43, waves bearing holder (housing, cover) 10, reciprocating lever 9; Front and back support 45,31 is fixed on the casing 8, on rotor axis of electric, be provided with bearing 32, gear 33 and rotor axis of electric engagement, it is parallel with motor output shaft and be arranged between the front and back support 45,31 by bearing to wave mandrel 41, the center line that waves axle 43 with wave mandrel 41 and form certain inclination angle; Wave mandrel 41 and wave axle 43 and be connected with gear 33 successively by straight pin 35, straight pin 37 and arrive to jump ring 34, pass steel bushing 40, bearing plate 39 together and bearing 44 backs are fixed with stop nut 42, wave end play between parts integral body and the front and back support 43,31 with elimination; Bearing 11 and wave bearing holder (housing, cover) 10 and be arranged on and wave on the axle 43 waves bearing holder (housing, cover) 10 1 ends and is connected by bulb and reciprocating lever 9, other end band one balance weight; Reciprocating lever 9 is connected with front and back support 44,31 with screw 13 by oiliness bearing 15, oiliness bearing pressing plate 14, is connected by connecting rod 23 between reciprocating lever 9 and the fixing device for saw blades.

The utility model waves between bearing holder (housing, cover) 10 and bearing 11, the wave washer 46 and is fixed by circlip for hole 36, and utilize the elasticity of wave washer 46 to eliminate the fit-up gap in order to eliminate the end play of waving between bearing holder (housing, cover) 10 and bearing 11 outer rings.In order to eliminate the end play of waving between axle 43 and bearing 11 inner rings, wave between axle 43, wave washer 12 and bearing 11 inner rings and fix, and utilize the elasticity of wave washer 12 to eliminate the fit-up gap by circlip for shaft 38.For reciprocating lever 9 connects firm, motion flexibly, oiliness bearing 15 is connected with front and back support 45,31 respectively by the face of cylinder, and is compressed by elastic oil-containing pressing plate 14 by screw 13.Convenient, fast in order to change saw blade, be provided with the slot 22 that saw blade spanner 21 is installed in casing 8 bottoms.

Fig. 2 and shown in Figure 3, fixing device for saw blades is made up of pin 7, knife rest 6, knife rest pressing plate 3, screw 1, knife rest 6 is fixedlyed connected with connecting rod 23, pin 7 is fixed on the knife rest 6, be provided with spring 5 in the fixing hole of knife rest 6, knife rest pressing plate 3 is the groove shape and is used to limit saw blade 4 around pin 7 rotations, and knife rest pressing plate 3 is fixing with knife rest 6 by screw 1 and spring washer 2, make saw blade be close to knife rest 6, reach the purpose that clamps saw blade 4.

The course of work of the present utility model is as follows, connect power supply earlier, turn on the power switch 22, motor 30 work, motor 30 driven wheels 33, gear 33 drives through straight pin 37 and waves axle 43 rotations, form an angle owing to wave axle 43 and wave mandrel 41 axis, the rotation of waving mandrel 41 causes waving axle 43 and does the circular cone rotation, this circular cone rotates waving and is decomposed into around the rotation of waving bearing holder (housing, cover) bulb axis on the bearing holder (housing, cover) 10 and is the swing of central point to wave axle 43 with waving mandrel 41 intersection points, and the swing of waving bearing holder (housing, cover) 10 bulbs drives again by oiliness bearing 15, oiliness bearing pressing plate 14 is connected front and back support 45, reciprocating lever 9 on 31 does reciprocating linear motion; Reciprocating lever 9 drives fixing device for saw blades by connecting rod 23 and does reciprocating linear motion, thereby reaches the purpose of reciprocating saw or sweep-saw dissection.

Claims

1, a kind of electronic variety saw, comprise casing (8), motor (30), power switch (20), reciprocal wabbler mechanism, saw blade (4) and fixing device for saw blades, back and forth wabbler mechanism comprises front and back support (45,31), gear (33), wave mandrel (41), wave axle (43), wave bearing holder (housing, cover) (10), reciprocating lever (9), front and back support (45,31) be fixed on the casing (8), gear (33) and rotor axis of electric engagement, it is characterized in that: the described mandrel (41) that waves is parallel with rotor axis of electric and be arranged on front and back support (45,31) between, wave axle (43) and wave the certain inclination angle of mandrel (41) formation, wave mandrel (41) and wave axle (43) by straight pin (35,37) be connected with gear (33) successively and arrive to jump ring (34), it is fixing with nut (42) to pass steel bushing (40) and bearing (44) back together; Bearing (11) and wave bearing holder (housing, cover) (10) be arranged on wave the axle (43) on, waving bearing holder (housing, cover) (10) one ends is connected by bulb and reciprocating lever (9), other end band one balance weight, reciprocating lever (9) is connected with front and back support (45,31) by oiliness bearing (15), and reciprocating lever (9) is connected by connecting rod (23) 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 pin (7), knife rest (6), knife rest pressing plate (3), screw (1), knife rest (6) is fixedlyed connected with connecting rod (23), pin (7) is fixed on the knife rest (6), and knife rest pressing plate (3) is groove shape and fixing by screw (1) and knife rest (6).

3, electronic variety saw according to claim 1 and 2 is characterized in that: the described bearing holder (housing, cover) (10) that waves is fixed by circlip for hole (36) with bearing (11), wave washer (46).

4, electronic variety saw according to claim 3 is characterized in that: described axle (43), wave washer (12) and bearing (11) inner ring of waving is fixing by circlip for shaft (38).

5, electronic variety saw according to claim 4 is characterized in that: described oiliness bearing (15) cooperates with front and back support (45,31) successively by the face of cylinder, and is compressed by oiliness bearing pressing plate (14) by screw (13).

6, electronic variety saw according to claim 5 is characterized in that: described casing (8) bottom is provided with the slot (22) that saw blade spanner (21) is installed.