CN2241039Y

CN2241039Y - Multifunctional electric tool

Info

Publication number: CN2241039Y
Application number: CN 95246238
Authority: CN
Inventors: 方亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-24
Filing date: 1995-11-24
Publication date: 1996-11-27
Anticipated expiration: 2005-11-24

Abstract

The utility model relates to a multifunctional electric tool which is composed of a motor, a gearwheel, a planetary wheel device, a sliding sleeve, a slide key clutch device, etc. The utility model is also provided with a cam mechanism with a sine acceleration motion rule. The utility model has the advantages of reasonable design, multiple functions, practicality, light weight and low cost.

Description

Multi-functional electric tools

The utility model relates to a kind of electric tool.

The electric tool of simple function, or grinding, or electric drill, or electric saw, or the like, carry very inconvenient, if small-sized workshop or REPSH repair shop consider from performance, price, can not purchase a plurality of electric tools; The multi-functional electric tools that has data to look into, complex structure, design and unreasonable, cost is higher, and is still impracticable.Chinese patent 93220617.4 has been introduced a kind of electric tool group, form by the main frame of tool motor and the tool heads of several band deceleration devices, the electric tool of this structure, member is many, cost is high, volume is big, heavy, does not still satisfy the needs small-sized, integrated, that cost is low, light and handy.

The purpose of this utility model is at above-mentioned deficiency, proposes a kind of multi-functional electric tools, in integral structure, exports different rotating speeds respectively, to satisfy the needs of different instruments, and the advantage of the structure compactness of signing an undertaking, easy to carry, long service life.

The utility model is by big external gear, planetary gear device, sliding sleeve-feather key device, gusset piece 11, motor 1, casing etc.

Motor 1 output gear shaft 2 and big external gear 3 engagements;

Big external gear 3 one ends are bearing on the gusset piece 11 by bearing, and the other end is an output, is bearing in internal gear 5 inner chambers by rolling bearing, and coaxial with internal gear 5;

Planetary gear device is bearing in internal gear 5 inner chambers by bearing, and coaxial with it, and idler gear 12 supporting one end is at big external gear 3, and coaxial with it, and the other end is in planetary wheel carrier, and is and coaxial with it;

Sliding sleeve 10 places on the big external gear 3 output hollow shafts, but and axial displacement, sliding sleeve 10 1 end faces touch mutually with feather key 8 corresponding end, the engagement of its keyway end and planetary gear keyway end, feather key 8 is enclosed within idler gear 12 middle parts, can move axially, and key connects.

Above-mentioned internal gear 5 can be designed to cylindrical cam, and the roller on the slide block 9 places the curved slot on 5 of the cylindrical cams, constitutes the cam mechanism that driven member is made the sinusoidal acceleration characteristics of motion, and scroll saw places on the slide block 9.

Above-mentioned big external gear 3 its outputs are the double-layer hollow axle, and skin is the bearing faying face, and internal layer is the sliding sleeve faying face, put a compression spring between two-layer, and spring is pressed on the big external gear 3, and the other end then is pressed on the sliding sleeve that is placed in internal layer.

Above-mentioned planetary wheel carrier two ends are hollow shaft, four locating notches of an end band, the wounded in the battle key of the other end.

Now with reference to the accompanying drawings utility model is further described:

Accompanying drawing 1 is the utility model drive mechanism schematic diagram;

Accompanying drawing 2 is the utility model section of structures;

Accompanying drawing 3 is A-A profiles in the accompanying drawing 2;

Accompanying drawing 4 is section of structures of the utility model tool scroll saw function.

As shown in Figure 1, motor 1 input pinion 2, after big external gear 3 is done the 1st grade of deceleration, power or input breast wheel a or line of input star wheel frame c.H is a tie-rod, and 6 are brake＜1 〉, 7 are brake＜2 〉.

When brake＜1〉check part b.Brake＜2〉when unclamping, by bidirectional clutch 4 power line of input star wheel frame c, then breast wheel goes into to do output at a high speed;

When brake＜2〉check part H brake＜1〉when unclamping, by bidirectional clutch 4 power input breast wheel a, then internal gear b does the output of slowing down;

When brake＜1〉check part b brake＜2〉when unclamping, by bidirectional clutch 4 power input breast wheel a, then breast wheel a directly exports the power of big external gear 3.

As shown in Figure 2, idler gear 12 is bearing on planetary wheel carrier and the big external gear 3, and coaxial with it; Planetary wheel carrier, big external gear 3 all are contained in internal gear 5 inner chambers, and internal gear 5 is contained in the casing, and casing, motor all are fixed on the gusset piece 11.

Various tool comprises grinding tool, electric drill, gong silk cutter, and its retainer all is with male cone (strobilus masculinus), and end has a screw, constitutes the two-way clutch system with sliding sleeve-feather key, changes power shaft by this system, thereby reaches the purpose of speed change.

When 7 dozens of change-over switches during at shown position, intermediate gear shaft can be used as emery wheel power as shaft.Emery wheel retainer power shaft is a male cone (strobilus masculinus), and the screw that it is terminal is connected with the thread segment of idler gear internal taper hole, and the tight fit of interior male cone (strobilus masculinus) can be felt relieved and be transmitted moment of torsion; At this moment big external gear is passed to sliding sleeve by the key transmission with rotating speed, slide under the spring action, its end face radial slot combines with planetary wheel carrier corresponding end double wedge, thereby drives planetary wheel carrier to the transmission of idler gear speedup, the idler gear output speed drives emery wheel work, and the rotating speed design can be to 10000 commentaries on classics.

Change-over switch is still in the original place when making electric hand drill, by the chuck fixed drill bit, the power shaft of chuck is the outer taper shank of terminal band screw, thrust is simultaneously between male cone (strobilus masculinus) in providing on the screw designs, also promote to move behind the feather key, feather key also promotes to move behind the sliding sleeve when inserting big external gear inner hole key slot, and sliding sleeve end face groove and planetary wheel carrier corresponding end double wedge are thrown off, at this moment power is passed to idler gear by big external gear, thereby drives drill bit work.

Change above-mentioned chuck into screwdriver permanent moment of torsion retainer,, thereby drive screwdriver work through electrical shift.

When change-over switch 7 was got to extreme position along the A direction, drive path was constant, and internal gear is that cylindrical cam is done the output of slowing down, and the roller on the slide block 9 is driven by the race side, moves back and forth saw blade work along the guide rail direction thereby drive slide block.

The utility model reasonable in design, multiple functional, and turn to identical characteristic with it because breast wheel supporting is based upon on big external gear and the planetary wheel carrier, and caloric value and noise are reduced, abrasion resistance improves, and cost descends.

Claims

1, a kind of multi-functional electric tools comprises motor, shell, it is characterized in that it also comprises big external gear 3, planetary gear device, sliding sleeve-feather key arrangement of clutch, gusset piece 11 etc.,

Motor 1 output gear shaft 2 and big external gear 3 engagements;

Planetary wheel carrier is bearing in internal gear 5 inner chambers by bearing, and coaxial with it, and idler gear 12 supporting one end is at big external gear 3, and coaxial with it, and the other end is in planetary wheel carrier, and is and coaxial with it;

Sliding sleeve 10 places on the big external gear 3 output hollow shafts, but and axial displacement, sliding sleeve 10 1 end faces touch mutually with feather key 8 corresponding end, its keyway end and the engagement of planetary gear keyway end, feather key 8 is enclosed within idler gear 12 keyways, can move axially, and an end can mesh with the internal keyway of big external gear output.

2, multi-functional electric tools according to claim 1 is characterized in that described internal gear 5 is cylindrical cam, and the roller on the slide block 9 places the curved slot on the cylindrical cam 5 outer garden cylinders, and thread saw blade is contained on the slide block 9.

3, according to claim 1,2 described multi-functional electric tools, it is characterized in that described big external gear 3 its outputs are the double-layer hollow axle, skin is the bearing faying face, and internal layer is the sliding sleeve faying face, put a compression spring between two-layer, spring is pressed between big external gear 3 and the planetary wheel carrier.

4,, it is characterized in that described planetary wheel carrier two ends are hollow shaft, four locating notches of an end band, the wounded in the battle key of the other end according to claim 1,2 described multi-functional electric tools.