CN201728432U - Reciprocating hand-held electric saw - Google Patents
Reciprocating hand-held electric saw Download PDFInfo
- Publication number
- CN201728432U CN201728432U CN2010202688193U CN201020268819U CN201728432U CN 201728432 U CN201728432 U CN 201728432U CN 2010202688193 U CN2010202688193 U CN 2010202688193U CN 201020268819 U CN201020268819 U CN 201020268819U CN 201728432 U CN201728432 U CN 201728432U
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- saw blade
- rectangle installing
- hole
- bar shaped
- installing hole
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Abstract
The utility model provides a reciprocating hand-held electric saw which comprises a base plate (1) with a handle (4), a strip-shaped saw blade (2) arranged on the base plate in a leaning manner, and a motor (3) for driving the strip-shaped saw blade. A first motor shaft assembling hole (5) is arranged at the end of the base plate near the handle, and at least two fixed shafts (6) are assembled on the base plate; a longitudinal rectangular installation hole (7) and at least two transverse rectangular installation holes (8) are arranged on the strip-shaped saw blade, a sliding block (11) is assembled in the longitudinal rectangular installation hole, longitudinal sliding grooves (9) are arranged at the left and right sides of the sliding block (11), and a second motor shaft assembling hole (10) is arranged in the center of the sliding block (11); groove wheels (13) with center holes (12) are assembled in the transverse rectangular installation holes; an eccentric wheel (14) is assembled on a transmission shaft (15) of the motor, the transmission shaft is assembled in the first motor shaft assembling hole and the second motor shaft assembling hole by the eccentric wheel, and the fixed shafts correspondingly penetrate through and are assembled in the center holes of the groove wheels. With simple structure, small volume, light weight, convenient hand-held operation and high working efficiency, the reciprocating hand-held electric saw can saw thick objects in one step.
Description
Technical field
The utility model belongs to the electric tool technical field, is specially the hand-held electric saw technical field.
Background technology
Saw is a kind of widely used instrument.Traditional hand saws is a bar shaped saw, and the push-and-pull by staff moves back and forth saw, and article are sawed-off.Though hand saws is simple in structure, light, be convenient to hand-held, operating efficiency is low.Along with development of technology, people have invented by motor-driven hand-held electric saw, have improved operating efficiency greatly.Existing hand-held electric saw mainly contains two classes, and a class adopts the disc saw blade, and the saw blade centre bore is assemblied on the motor driving shaft, rotates by the driven by motor saw blade.This class electric saw is light, is convenient to staff and controls, and high efficiency is used widely in daily production and life.But owing to be hand-held tool, the diameter of its saw blade can not be done too much, and the motor that is configured on the instrument can not be excessive overweight, not only comparatively bother when therefore sawing thicker object, sawed-off mouthful of article can not keep smooth, even can not be sawed-off fully, uses to be subjected to certain limitation.Another kind of employing bar shaped saw blade, its saw blade rely on generator drive generation translation to carry out cutting movement.Owing to need the special configuration generator, this class electric saw is comparatively heavy usually, though saw can be handed, but attached configuration such as generator must place on the ground, therefore, this class electric saw can't be at last truly hand-held electric saw, in can only being applied to produce, seldom use in the daily life.In addition, owing to be subjected to structural limitations, this class bar shaped electric saw can only be to a direction translational motion when the sawing article, and therefore saw blade is longer usually, and needs repeatedly saw down when the thicker article of cutting, troublesome poeration, and sawed-off mouthful of article can not keep smooth.
Summary of the invention
The purpose of this utility model is just in order to solve the deficiencies in the prior art, a kind of simple in structure, small volume and less weight be provided, be convenient to hand-held, high efficiency and can be once the reciprocating type hand held power saw of the sawed-off thicker article of saw down.
The purpose of this utility model is achieved by the following technical solution.
Reciprocating type hand held power saw is characterized in that:
1. comprise the substrate of being with handle, by being loaded on the bar shaped saw blade on the substrate and driving the motor of bar shaped saw blade;
2. offer the first motor shaft pilot hole at substrate near handle end, also be fitted with at least two fixed axis on the substrate;
3. on the bar shaped saw blade, offer a vertical rectangle installing hole and at least two horizontal rectangle installing holes, wherein be fitted with the slide block of vertical chute of left and right sides band and the center band second motor shaft pilot hole in close vertical rectangle installing hole of saw blade rear end, the height of slide block is less than the height of vertical rectangle installing hole; The geomery of at least two horizontal rectangle installing holes is identical, and all laterally is being fitted with the sheave of being with centre bore in the rectangle installing hole;
4. be fitted with eccentric wheel on drive axle of motor, power transmission shaft is fitted in the first motor shaft pilot hole and the second motor shaft pilot hole by eccentric wheel; Simultaneously, the fixed axis correspondence on the substrate is passed and is fitted in the centre bore of the sheave on the bar shaped saw blade.
Bar shaped saw blade of the present utility model can be designed to two sections interconnection system structures, and one section is changeover portion, and another section is a saw blade segments; All offer the hole that is linked and packed at changeover portion front end and saw blade segments back segment, changeover portion is connected with saw blade segments by the connector that passes the hole that is linked and packed; Vertically rectangle installing hole and horizontal rectangle installing hole all are opened on the changeover portion.Offer the saw blade segments horizontal rectangle installing hole corresponding at the saw blade segments back segment with changeover portion horizontal rectangle installing hole foremost, sheave by the groove straddle mounting on the wheel rim in two overlapping horizontal rectangle installing holes.
The utility model adopts the equipped structure of motor, eccentric wheel, slide block, vertical rectangle installing hole dexterously, eccentric thrust is passed to the bar shaped saw blade by sliding up and down of slide block, again in conjunction with the horizontal equipped structure of rectangle installing hole, sheave, make the bar shaped saw blade when being subjected to thrust, sheave laterally slides along horizontal rectangle installing hole when rotating, and realizes the reciprocating motion of bar shaped saw blade.Because saw blade has been realized reciprocating, even if therefore the length dimension of saw blade is less, also can once saw down can sawed-off thicker article.In addition, when the bar shaped saw blade is worked, saw blade is in contact with one another stressed with quilt saw article, can produce bigger torsional forces, the utility model is converted into sliding force by the horizontal slip of sheave with the torsional forces that saw blade is subjected to, effectively improve the force environment that is subjected to of saw blade, can prolong the service life of saw blade, improved the security that electric saw uses.
The utility model can be designed to the bar shaped saw blade two sections interconnection system structures, is convenient to the replacing of saw blade.When needs are changed the bar shaped saw blade of other specifications or are changed the bar shaped saw blade that damages, can change fast as long as take the connector that connects changeover portion and saw blade segments apart, also can reduce use cost.
The utility model integrates the advantage of traditional-handwork saw and hand held power saw, simple in structure, small volume and less weight, is convenient to hand, and can bear bigger service load, and is safe and reliable, high efficiency.Be specially adapted to the daily use of family.
Further set forth the utility model content below in conjunction with Figure of description and embodiment.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is a structure exploded perspective view of the present utility model;
Fig. 4 is the schematic diagram that the utility model adopts two sections interconnection system structure bar shaped saw blades;
Fig. 5 is the exploded perspective view that the utility model adopts two sections interconnection system structure bar shaped saw blades.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises the substrate 1 of being with handle 4, by being loaded on the bar shaped saw blade 2 on the substrate and driving the motor 3 of bar shaped saw blade.Substrate 1 adopts steel plate to manufacture.Offer the first motor shaft pilot hole 5 at substrate near handle end, also be fitted with at least two fixed axis 6 on the substrate.Offer a vertical rectangle installing hole 7 and at least two horizontal rectangle installing holes 8 on the bar shaped saw blade, present embodiment adopts two horizontal rectangle installing holes.Vertically the rectangle mounting hole site is fitted with the slide block 11 of vertical chute 9 of left and right sides band and the center band second motor shaft pilot hole 10 in the position near the saw blade rear end in vertical rectangle installing hole, and the height of slide block is less than the height of vertical rectangle installing hole; The geomery of two horizontal rectangle installing holes is identical, all is fitted with the sheave 13 of band centre bore 12 in two horizontal rectangle installing holes by bearing 20.Be fitted with eccentric wheel 14 on the power transmission shaft 15 of motor 3, power transmission shaft is fitted in the first motor shaft pilot hole 5 and the second motor shaft pilot hole 10 by eccentric wheel; Simultaneously, 6 correspondences of the fixed axis on the substrate are passed and are fitted in the centre bore 12 of the sheave on the bar shaped saw blade.
As Fig. 4, shown in Figure 5, bar shaped saw blade 2 of the present utility model can be designed to two sections interconnection system structures, and one section is changeover portion 2a, and another section is saw blade segments 2b; All offer the hole 16,17 that is linked and packed at changeover portion front end and saw blade segments back segment, changeover portion is connected with saw blade segments by the connector 21 that passes the hole that is linked and packed; Vertically rectangle installing hole and horizontal rectangle installing hole all are opened on the changeover portion.Adopt this two sections interconnection system structures, both be convenient to the replacing of saw blade segments, also can reduce use cost.The utility model can be offered the saw blade segments horizontal rectangle installing hole 18 corresponding with changeover portion horizontal rectangle installing hole foremost at the saw blade segments back segment, sheave 13 in two overlapping horizontal rectangle installing holes, can be strengthened the connective stability of changeover portion and saw blade segments by 19 straddle mountings of the groove on the wheel rim.
When using this reciprocating type hand held power saw, hand-held handle 4, starter motor 3 drives eccentric wheels 14 by power transmission shaft 15 and rotates, and eccentric wheel drives slide block 11 and is vertically sliding up and down in the rectangle installing hole 7 by chute 9, thereby drives 2 motions of bar shaped saw blade.When eccentric big end rotated to the direction vertical with the bar shaped saw blade, slide block was vertically sliding up and down in the rectangle installing hole.When eccentric big end extreme direction when rotation before the bar shaped saw blade, the bar shaped saw blade is pushed to direction forward, and when eccentric big end rotated to bar shaped saw blade rear end, the bar shaped saw blade was pushed to direction backwards.Cooperate by the rolling of sheave 13 in the horizontal rectangle installing hole 8 of bar shaped saw blade, can realize the reciprocating motion of bar shaped saw blade smoothly, article are sawed-off, and the torsional forces that the bar shaped saw blade is subjected to transformed.
Claims (3)
1. reciprocating type hand held power saw is characterized in that:
1. comprise the substrate (1) of band handle (4), by being loaded on the bar shaped saw blade (2) on the substrate and the motor (3) of driving bar shaped saw blade;
2. offer the first motor shaft pilot hole (5) at substrate near handle end, also be fitted with at least two fixed axis (6) on the substrate;
3. on the bar shaped saw blade, offer a vertical rectangle installing hole (7) and at least two horizontal rectangle installing holes (8), wherein be fitted with the slide block (11) of vertical chute of left and right sides band (9) and the center band second motor shaft pilot hole (10) in close vertical rectangle installing hole of saw blade rear end, the height of slide block is less than the height of vertical rectangle installing hole; The geomery of at least two horizontal rectangle installing holes is identical, and all laterally is being fitted with the sheave (13) of being with centre bore (12) in the rectangle installing hole;
4. be fitted with eccentric wheel (14) on the power transmission shaft (15) of motor (3), power transmission shaft is fitted in the first motor shaft pilot hole (5) and the second motor shaft pilot hole (10) by eccentric wheel; Simultaneously, the fixed axis on the substrate (6) correspondence is passed and is fitted in the centre bore (12) of the sheave on the bar shaped saw blade.
2. reciprocating type hand held power saw according to claim 1 is characterized in that: described bar shaped saw blade (2) is two sections interconnection system structures, and one section is changeover portion (2a), and another section is saw blade segments (2b); All offer the hole that is linked and packed (16,17) at changeover portion front end and saw blade segments back segment, changeover portion is connected with saw blade segments by the connector (21) that passes the hole that is linked and packed; Vertically rectangle installing hole and horizontal rectangle installing hole all are opened on the changeover portion.
3. reciprocating type hand held power saw according to claim 2, it is characterized in that: offer and the corresponding horizontal rectangle installing hole of saw blade segments (18) of changeover portion horizontal rectangle installing hole foremost at the saw blade segments back segment, sheave (13) by the groove on the wheel rim (19) straddle mounting in two overlapping horizontal rectangle installing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202688193U CN201728432U (en) | 2010-07-23 | 2010-07-23 | Reciprocating hand-held electric saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202688193U CN201728432U (en) | 2010-07-23 | 2010-07-23 | Reciprocating hand-held electric saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201728432U true CN201728432U (en) | 2011-02-02 |
Family
ID=43519590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202688193U Expired - Fee Related CN201728432U (en) | 2010-07-23 | 2010-07-23 | Reciprocating hand-held electric saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201728432U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874837A (en) * | 2015-05-02 | 2015-09-02 | 安庆安星电气有限公司 | Apparatus for collecting iron filings of drilling machine |
| CN107637301A (en) * | 2017-09-20 | 2018-01-30 | 占行波 | Direct current drive branch sawing machine |
| CN107718171A (en) * | 2017-09-13 | 2018-02-23 | 占行波 | Power saws straight saw blade |
-
2010
- 2010-07-23 CN CN2010202688193U patent/CN201728432U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874837A (en) * | 2015-05-02 | 2015-09-02 | 安庆安星电气有限公司 | Apparatus for collecting iron filings of drilling machine |
| CN104874837B (en) * | 2015-05-02 | 2017-12-19 | 中山市炜业机械制造有限公司 | A kind of method of work of the collection device of drilling machine iron filings |
| CN107718171A (en) * | 2017-09-13 | 2018-02-23 | 占行波 | Power saws straight saw blade |
| CN107718171B (en) * | 2017-09-13 | 2021-05-07 | 江苏诺得胜工具有限公司 | Straight saw blade of electric saw |
| CN107637301A (en) * | 2017-09-20 | 2018-01-30 | 占行波 | Direct current drive branch sawing machine |
| CN107637301B (en) * | 2017-09-20 | 2021-07-09 | 江苏杰创企业管理有限公司 | DC electric branch sawing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20130723 |