CN2793446Y

CN2793446Y - Improved electric drilling gearbox

Info

Publication number: CN2793446Y
Application number: CNU2005201078194U
Authority: CN
Inventors: 蔡逢春
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-30
Filing date: 2005-05-30
Publication date: 2006-07-05
Anticipated expiration: 2015-05-30

Abstract

The utility model discloses an improved gearbox of an electric drilling. A torque force mechanism and a shocking switching mechanism are arranged in a torque force rotating outer cover and an outer shell of the electric drilling. A main shaft can use the torque force mechanism to obtain maximum torque output by rotating the torque force rotating outer cover or axial impact force can be generated by the main shaft through the shocking switching mechanism.

Description

Improved electric drill gear-box

Technical field

The utility model relates to a kind of electric drill gear-box, refers to a kind ofly by turn torsion rotary outer cover especially, can make main shaft obtain the improved electric drill gear-box of acrotorque output and axial impact.

Background technique

Rotary hand tools is little comparatively light owing to volume, and because its using scope is extensive, all can be competent at such as boring or lock screw or the like work, so liked by the Consumer.

And with on the market rotary hand tools, be to provide power by the motor in the driving mechanism, amplify to remake behind the torsion through the planetary pinion in the gear-box again and be used for internal gear; Yet, this internal gear is located by a plurality of steel ball of inserting in the position, hole on a plurality of salient points on the internal gear end face and the shell, apply pressure to strength size on the steel ball by spring, the feasible internal gear that rotates that drives because of torsion, stagnate and skidding because of the spring generation internal gear of exerting pressure in various degree, export and obtain different big or small torsion.

Moreover, export when above-mentioned rotary hand tools needs the highest torsion with all strength, promote and bore when attacking efficient, then need to lock the outputting torsion of rotary hand tools gear-box, make the internal gear of rotary hand tools gear-box can not produce skidding, to guarantee the rotation function output of rotary hand tools; Yet, possessing the internal gear of a hollow now in the outputting torsion device of rotary hand tools, and be formed with a plurality of inner circular tooths in this internal gear inwall, this internal gear one end is formed with the trip stop face of a plurality of salient points, carries out the trip stop action of skidding by this trip stop face; Moreover, one fluted disc causes the planet wheel of this internal gear for socket and meshing a plurality of interlock, and a housing is to hold this internal gear in a side, and accommodate a plurality of steel balls that can on this trip stop face, slide in other side, and the restriction steel ball moves on the trip stop face when stressed, to stop the generation of skidding of internal gear trip stop.

Yet, if it is harder when surperficial that above-mentioned known configurations is attacked at brill, because output shaft does not have vibration function, so motor power also causes idle running with invar pearl escape trip stop face, and then cause motor power to consume on internal gear, and make output shaft can't absorb power, cause the kinetic energy of rotary hand tools all to export or to produce and skid.

The model utility content

The technical problems to be solved in the utility model is: propose a kind of improved electric drill gear-box, to overcome the defective of above-mentioned known configurations.

Technical solution of the present utility model is: a kind of improved electric drill gear-box, it is provided with one between the torsion rotary outer cover of an electric drill and frame can make main shaft produce the torsion mechanism of acrotorque, and can make main shaft produce the vibrations switching mechanism that impacts strength, wherein: this torsion mechanism includes an adjusting part and that is sheathed on the main shaft and is arranged at the interior actuator of frame, and on this adjusting part, be movably equipped with a plurality of latches, and but this torsion rotary outer cover is provided with displacement for this adjusting part of interlock, and drive these a plurality of latch stoppers on this actuator, and then can stop this actuator rotation; This vibrations switching mechanism includes one and is arranged at the changeover module on the main shaft and is arranged at the interior pad of torsion rotary outer cover, and on frame, then be inserted with two fixing pins, and this torsion rotary outer cover is done a turn for driving pad drive changeover module, and make this changeover module form the state that cooperatively interacts with this fixing pin, make this main shaft have an axial displacement.

Aforesaid improved electric drill gear-box, wherein this torsion rotary outer cover utilizes engage thread to combine with adjusting part.

Aforesaid improved electric drill gear-box, wherein this actuator table edge is provided with a plurality of draw-in grooves, and this draw-in groove is can be for a plurality of latch stoppers location.

Aforesaid improved electric drill gear-box, wherein this torsion rotary outer cover is provided with a plurality of stuck points, and this pad is provided with a plurality of draw-in grooves, and this stuck point can be embedded at this draw-in groove, does a turn so that this torsion rotary outer cover can drive pad.

Aforesaid improved electric drill gear-box, wherein this pad inner edge is provided with a plurality of fixture blocks, and changeover module then is provided with and this fixture block becomes corresponding Ka Gou, makes this pad can drive changeover module and does a turn.

Aforesaid improved electric drill gear-box, wherein this changeover module switches ring and second by one first and switches ring institute and formed, and this second switches and to be equipped with a containing groove, and when changeover module turn during to the appropriate location, this containing groove can form the state that cooperatively interacts with this fixing pin.

Aforesaid improved electric drill gear-box, wherein this first switching is equipped with clip engine trough and is equipped with corresponding blocking block in this second switching, and second blocking block that switches ring can be embedded at the interior location that forms of clip engine trough that first switching encircles.

Improved electric drill gear-box of the present utility model can make main shaft can utilize torsion mechanism to obtain maximum torsion output by a torsion mechanism and a vibrations switching mechanism, also or by the vibrations switching mechanism makes main shaft produce an axial impact strength.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model.

Fig. 2 is a three-dimensional combination figure of the present utility model.

Fig. 3 is a schematic representation before the torsion mechanism action of the present utility model.

Schematic representation after Fig. 4 finishes for torsion mechanism of the present utility model moves.

Fig. 5 A, Fig. 5 B are schematic representation before the vibrations switching mechanism action of the present utility model.

Fig. 6 A, Fig. 6 B are schematic representation after vibrations switching mechanism action of the present utility model is finished.

The drawing reference numeral explanation:

1, main shaft 2, torsion mechanism 21, adjusting part

211, latch 212, screw section 22, actuator

221, draw-in groove 3, vibrations switching mechanism 31, pad

311, draw-in groove 312, fixture block 32, changeover module

321, first switches ring 3211, card ditch 3212, clip engine trough

322, second switches ring 3221, blocking block 3222, containing groove

4, torsion rotary outer cover 41, screw section 42, stuck point

5, frame 51, fixing pin

Embodiment

In order further to understand the technology contents that the utility model takes off and the important document of formation, below be that conjunction with figs. is described as follows:

See also Fig. 1, shown in Figure 2, be stereo appearance figure of the present utility model and three-dimensional combination figure, can find out that the utility model is to be provided with a vibrations switching mechanism 3 that can make main shaft 1 produce the torsion mechanism 2 of acrotorque and can make main shaft 1 generation impact strength in an electric drill inside by clear among the figure, so that main shaft 1 can bore the work of thing and lock thing to working substance.

Moreover above-mentioned torsion mechanism 2 and vibrations switching mechanism 3 are arranged at 5 of torsion rotary outer cover 4 and framies, wherein:

This torsion mechanism 2 includes an adjusting part 21 and an actuator 22, and is provided with a plurality of latches 211 in this adjusting part 21, the table edge of this adjusting part 21 and the inner edge of torsion rotary outer cover 4 be respectively equipped with one can be meshing mutually

screw section

212,41; Moreover aforesaid actuator 22 table edge then are provided with a plurality of draw-in grooves 221;

This vibrations switching mechanism 3 includes a pad 31 and and switches assembly 32, and this pad 31 is for being provided with a plurality of draw-in grooves 311, a plurality of draw-in grooves 311 of this pad 31 then can be embedded at the stuck point 42 of torsion rotary outer cover 4 inner side edges, and then are provided with a plurality of fixture blocks 312 in these pad 31 inner edges; Moreover, above-mentioned changeover module 32 switches ring 321 and second 322 on the switching ring by one first to be formed, and this first side of switching ring 321 is provided with the fixture block 312 corresponding card ditches 3211 with pad 31, and be provided with a plurality of clip engine troughs 3212 in other side, and second switches ring 322 is provided with the blocking block 3221 that is corresponding combination with first clip engine trough 3212 that switches ring 321, so that second switches ring 322 and can be embedded at first by blocking block 3221 and switch in the clip engine trough 3212 of ring 321 formation and locate; Thus, can constitute electric drill of the present utility model.

Please consult Fig. 3 simultaneously, shown in Figure 4, be schematic representation after schematic representation and action are finished before the torsion mechanism action of the present utility model, can find out before torsion mechanism 2 is for adjustment by clear among the figure, the a plurality of latches 211 that are arranged on the adjusting part 21 are the permeable type attitude, when turn torsion rotary

outer cover

4,4 of this torsion rotary outer covers can drive adjusting part 21 by screw section 41 and do a displacement, and interlock latch 211 moves up to latch 211 stoppers in the draw-in groove 221 of actuator 22 simultaneously, this moment, the motor (not shown) can provide the torsion of a maximum to export to main shaft 1 via actuator 22, and can prevent simultaneously that actuator 22 from producing the phenomenon of skidding.

Moreover, please continue to consult shown in Fig. 5 A to Fig. 6 B, be schematic representation after schematic representation and action are finished before the vibrations switching mechanism action of the present utility model, can find out that being inserted with two on the aforesaid frame 5 is the eccentric fixing pin 51 that is provided with by clear among the figure, and when the user drives one turn of torsion rotary outer cover 4 dos, can drive pad 31 drive changeover modules 32 simultaneously and do a turn; In addition, aforesaid second switches ring 322 is provided with a containing groove 3222 in a side surface, so when changeover module 32 passes through 4 turns of torsion rotary outer cover to special position, but these second switching ring, 322 interlock changeover modules 32 are inwardly done one with main shaft 1 and are moved axially, and after moving inward the location, this main shaft 1 is active state, that is when motor (not shown) transmission main shaft 1 rotates, this main shaft 1 promptly can be by the default mutual friction slip of last bottom ratchet wheel (not shown), and then ratchet is beated because of friction-produced promote main shaft 1 and outwards move axially, so can provide main shaft 1 to produce a bump strength, attack harder surface so that electric drill of the present utility model can bore.

In sum, the improved electric drill gear-box that the utility model is taken off can provide the torsion of 1 one maximums of main shaft to export and an axial impact strength.

Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.

Claims

1. an improved electric drill gear-box is characterized in that, be provided with one between the torsion rotary outer cover of an electric drill and frame and can make main shaft produce the torsion mechanism of acrotorque, and can make main shaft produce the vibrations switching mechanism that impacts strength, wherein:

This torsion mechanism includes an adjusting part and that is sheathed on the main shaft and is arranged at the interior actuator of frame, and on this adjusting part, be movably equipped with a plurality of latches, but and this torsion rotary outer cover for this adjusting part displacement of interlock and drive these a plurality of latch stoppers and on this actuator, be provided with;

This vibrations switching mechanism includes one and is arranged at the changeover module on the main shaft and is arranged at the interior pad of torsion rotary outer cover, then be inserted with two fixing pins on the described frame, and this torsion rotary outer cover drives changeover module and does a turn and make this changeover module form the state ground setting that cooperatively interacts with this fixing pin for driving pad.

2. improved electric drill gear-box as claimed in claim 1 is characterized in that this torsion rotary outer cover utilizes engage thread to combine with adjusting part.

3. improved electric drill gear-box as claimed in claim 1 is characterized in that, this actuator table edge is provided with a plurality of draw-in grooves for a plurality of latch stoppers location.

4. improved electric drill gear-box as claimed in claim 1 is characterized in that this torsion rotary outer cover is provided with a plurality of stuck points, and this pad is provided with a plurality of draw-in grooves, and this stuck point can be embedded at this draw-in groove.

5. improved electric drill gear-box as claimed in claim 1 is characterized in that this pad inner edge is provided with a plurality of fixture blocks, and changeover module then is provided with and the corresponding Ka Gou of this fixture block one-tenth.

6. improved electric drill gear-box as claimed in claim 1 is characterized in that, this changeover module switches ring and second by one first and switches ring institute and is formed, and this second switches and be equipped with a containing groove, this containing groove can with this fixing pin formation one state that cooperatively interacts.

7. improved electric drill gear-box as claimed in claim 6, it is characterized in that, this first switching is equipped with clip engine trough, and is equipped with corresponding blocking block in this second switching, and second blocking block that switches ring can be embedded at the interior location that forms of clip engine trough that first switching encircles.