CN203510148U - Multifunctional percussion drill - Google Patents
Multifunctional percussion drill Download PDFInfo
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- CN203510148U CN203510148U CN201320461479.XU CN201320461479U CN203510148U CN 203510148 U CN203510148 U CN 203510148U CN 201320461479 U CN201320461479 U CN 201320461479U CN 203510148 U CN203510148 U CN 203510148U
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Abstract
The utility model discloses a multifunctional percussion drill which comprises a gear mechanism, a rotation shaft, a torque regulating mechanism, a percussion output mechanism, and a function conversion mechanism. When the percussion output mechanism outputs percussion, it is not hard contact, due to the rolling characteristic of a pin roller, the friction between a movable percussion disc and the pin roller is little, noise generated in percussion is low, electricity is saved, abrasion can not easily happen, durability is achieved, and service life is long. The torque regulating mechanism is a pressing mechanism which adopts a plurality of torque springs and spiral toothed blocks to press the percussion drill, pressure is made to be evenly distributed in the circumference, so that more labor is saved in torque regulation, the structure is simple, and production cost is low. A torsion locating mechanism is simple in structure and low in production cost. Moreover, after locating, the ejection portion of an ejector pin can not be easily disengaged from a gear hole, and the torsion locating mechanism is good in locating stability.
Description
Technical field
The utility model relates to percussion drill technical field, relates in particular to a kind of multifunctional percussion drill.
Background technology
At present, multifunctional percussion drill mainly comprises power set (as: motor), turning cylinder, drill chuck, the front end of drill chuck can be installed different drilling tool (as: centre drills according to purposes, drill bit, reamer, screw tap etc.), the rear end of drill chuck is connected with the front end of turning cylinder, the rear end of turning cylinder is connected with power set by gear mechanism, gear mechanism be used for slowing down rotating speed increase torsion, and rotary axle box is provided with torque adjustment mechanism, impact output mechanism, function switching mechanism, torque adjustment mechanism is the output torque of regulating rotary moving axis as required, impacting output mechanism can drive turning cylinder to be output as conflicting model, function switching mechanism can be changed turning cylinder as required between electric drill pattern and conflicting model.In use, power set drive turning cylinder to rotate by gear mechanism, by turning cylinder, drive drill chuck to rotate, and make drill chuck can carry out electric drill operation or impact operation.
As the patent of invention that Chinese Patent Application No. is 200810062909.4, a kind of multifunctional percussion drill is disclosed.
The impact output mechanism of this multifunctional percussion drill comprises quiet impact disc, moving impact disc, the rear end face of quiet impact disc is provided with waveform fluted disc, the front end face of moving impact disc is also provided with the waveform fluted disc of coupling, the moving sheathed turning cylinder that is fixed on percussion drill of impact disc, quiet impact disc is only sheathed on the turning cylinder of percussion drill, and the function switching mechanism of quiet impact disc and percussion drill is in transmission connection.When percussion drill needs electric drill operation, quiet impact disc is separated with moving impact disc, and the gear mechanism of percussion drill drives turning cylinder to rotate without impacting; When percussion drill need to impact operation, the function switching mechanism of percussion drill drives quiet impact disc to press down, the rear end face of quiet impact disc and the front end face of moving impact disc are contacted, because moving impact disc is along with the rotation of turning cylinder and the high low head of waveform fluted disc, thereby make turning cylinder produce vibratory impulse when rotating, realize the output of conflicting model.But, this impact output mechanism, when impacting output, the waveform fluted disc of its quiet impact disc rear end face is rigid contact with the waveform fluted disc of moving impact disc front end face, frictional force noise large, that produce is large, while impacting power consumption large, and easily wear and tear, be not durable.
Also have, the torque adjustment mechanism of this multifunctional percussion drill, is to regulate moment of torsion to export by regulating single torsion cover to compress degree to single torque spring.The torque adjustment mechanism of the single torque spring of this employing, need to apply larger pressure and could regulate moment of torsion, when regulating moment of torsion, relatively require great effort, and, the parts such as the torsion cover coordinating with single torque spring, moment of torsion rotary sleeve need to design to obtain complicated structure, and production cost is high.
Utility model content
The purpose of this utility model is to provide a kind of multifunctional percussion drill for the deficiencies in the prior art, it impacts, and output mechanism frictional force when impacting noise little, that produce is little, power saving, durable, and its torque adjustment mechanism is more laborsaving and simple in structure when regulating moment of torsion, production cost is low.
To achieve these goals, the utility model provides a kind of multifunctional percussion drill, comprise gear mechanism, turning cylinder, torque adjustment mechanism, impact output mechanism, function switching mechanism, described impact output mechanism comprises moving impact disc, several are for the roller of the described moving impact disc of conflicting, roller seat, roller fixed support, described moving impact disc is sheathed is fixed on described turning cylinder, described several rollers are fixed on the front end of roller seat by described roller fixed support, described roller cover for seat is located at described turning cylinder, and described roller seat and described function switching mechanism are in transmission connection,
Described torque adjustment mechanism comprises the pressure seat that is sheathed on described turning cylinder, in described pressure seat, be provided with for regulating the hold-down mechanism of moment of torsion output, described torque adjustment mechanism also comprises several torsion springs, several spiral block teeth, the torque sleeve corresponding with described several torsion springs; The outside of described pressure seat offers several chutes corresponding with described several spiral block teeth, the even compartment of terrain of described several chutes is distributed in the outside of described pressure seat, the both sides of described spiral block teeth are provided with the slide rail mating with described chute, and described spiral block teeth are slidably mounted in described chute; The bottom of described chute offers pressure port, and be inserted in described pressure port at the rear portion of described torsion spring, and the rear end of described torsion spring props up described hold-down mechanism through pressure port; Described spiral block teeth offer groove, in this groove, are provided with briquetting, and be inserted in described groove the front portion of described torsion spring, and the front end of described torsion spring props up described briquetting; The inwall of described torque sleeve arranges internal thread, the arranged outside of described spiral block teeth has the external screw thread mating with described internal thread, described torque sleeve is sheathed on the periphery of described several spiral block teeth by internal thread with externally threaded being threaded, and makes described torque sleeve promote described several spiral block teeth and slide simultaneously by rotating;
Described torque adjustment mechanism is also provided with torsion detent mechanism, described torsion detent mechanism comprises gear lid, is fixed on the ringwise fixed cap of described pressure seat front end, described gear lid is fixed on the front end of described torque sleeve, described fixed cap is positioned at described torque sleeve, described torque sleeve can be rotated around fixed cap, and described gear lid is positioned at the place ahead of described fixed cap; Described gear lid offers several gear holes, described several gear holes are circumferentially-spaced, described fixed cap is provided with ejector pin, ejector pin spring, described ejector pin is flexiblely installed on described fixed cap by ejector pin spring, described fixed cap offers and described gear hole corresponding knock hole on circumference, the front end of described ejector pin is provided with for heading into the portion that heads in described gear hole, this portion of heading into sees through described knock hole and protrudes from the front end of described fixed cap, and described in the portion of heading into be hemisphere shape.
The rear end of the moving impact disc of described impact output mechanism is provided with the waveform fluted disc mating with described several rollers.
The front end of described impact output mechanism roller seat offers the roller slot position of mating with described roller, and the rear end of described roller is placed in roller slot position; Described roller fixed support offers the roller fixing hole mating with described roller, and the front end of described roller sees through roller fixing hole and protrudes forward; The both sides of described roller are provided with roller card column, and the both sides of described roller fixing hole are raised with forward the lug boss mating with described roller card column, and the roller card column of described roller both sides is connected in the lug boss of described roller fixing hole both sides; Described roller seat is to be located at described turning cylinder by bearing holder (housing, cover).
The quantity of the roller of described impact output mechanism is 5, and 5 rollers are uniformly distributed in described roller fixed support circumferentially for being; The front end of described roller seat is provided with 5 and is equally distributed clamping block circumferentially, and described roller fixed support offers the blocked hole corresponding with described clamping block.
The torsion spring of described torque adjustment mechanism is 6, and described spiral block teeth also correspond to 6.
Described torque adjustment mechanism, also comprises functional localization sheet, and described functional localization sheet is sheathed on described turning cylinder, and described functional localization sheet props up the front end of spiral block teeth, and described functional localization sheet is between described pressure seat and described fixed cap.
In the pressure port of described pressure seat, be provided with puck, pressure steel ball, the rear end of described torsion spring props up described hold-down mechanism through puck, pressure steel ball successively.
The fixed cap of described torsion detent mechanism is provided with the installing hole for described ejector pin and ejector pin spring fitting; The surface in described torque sleeve outside is provided with the gear scale corresponding with described several gear holes.
Described fixed cap is provided with for the first fixing screw hole, and described gear lid is provided with for the second fixing screw hole.
Described multifunctional percussion drill also comprises directional protection mechanism, and described directional protection mechanism comprises the directional protection fastener that is connected with described gear mechanism transmission, two directional rollers, directed fixed cover; The center of described directional protection fastener offers turning cylinder fixing hole, makes described directional protection fastener connect and fix the rear end in described turning cylinder by described turning cylinder fixing hole; Described directed fixed cover connects and fixes in the rear portion of described pressure seat, described directed fixed cover offers circular fastener putting hole, the rear portion of this fastener putting hole and described pressure seat forms fastener rest area, and described directional protection fastener is placed in described fastener rest area rotationally; The cylinder that described directional protection fastener is hollow, and described directional protection fastener bilateral symmetry is wherein provided with the directed protuberance that drives described directional roller for forward, and the other bilateral symmetry cutting of described directional protection fastener is useful on the vertical plane that oppositely blocks described directional roller; One of them directional roller is placed in the side between described two directed protuberances, and another directional roller is placed in the opposite side between described two directed protuberances.
The utility model beneficial effect is:
Impact output mechanism of the present utility model, when impacting output, several rollers of roller seat front end contact with moving impact disc, by moving impact disc and several rollers, are rubbed and produce vibratory impulse mutually, not rigid contact, and due to the rolling characteristic of roller self, thereby make the frictional force between impact disc and several rollers little, therefore, the noise that produces during impact is little, power saving, also be not easy wearing and tearing, more durable, long service life.
Compare with existing torque adjustment mechanism, torque adjustment of the present utility model mechanism adopts a plurality of torsion springs and spiral block teeth and compresses the hold-down mechanism of percussion drill, make pressure be even circumferential and disperse, thus more laborsaving when regulating moment of torsion, and simple in structure, production cost is low.
Torsion detent mechanism of the present utility model is simple in structure, production cost is low, and, torsion detent mechanism of the present utility model adopts the portion of heading into of ejector pin to head into the gear hole of gear lid and realizes location, while only having driving torque cover when location, apply certain dynamics, just can make the portion that heads into of ejector pin exit from gear hole, after having good positioning, the portion of heading into of ejector pin is not easy to get loose from gear hole, so torsion detent mechanism position stability of the present utility model is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is generalized section of the present utility model.
Fig. 3 is the decomposing schematic representation of impact output mechanism of the present utility model.
Fig. 4 is the structural representation of roller, roller seat and the roller fixed support of impact output mechanism of the present utility model while fitting together.
Fig. 5 is the support bracket fastened structural representation of the roller of impact output mechanism of the present utility model.
Fig. 6 is the structural representation of the roller seat of impact output mechanism of the present utility model.
Fig. 7 is the partial cutaway schematic at impact output mechanism of the present utility model position.
Fig. 8 is the decomposing schematic representation of torque adjustment of the present utility model mechanism.
Fig. 9 is the structural representation of the spiral block teeth of torque adjustment of the present utility model mechanism.
Figure 10 is the structural representation of pressure seat, torsion spring, spiral block teeth and the functional localization sheet of torque adjustment of the present utility model mechanism while fitting together.
Figure 11 is the decomposing schematic representation of Figure 10.
Figure 12 is the partial cutaway schematic at torque adjustment mechanism of the present utility model position.
Figure 13 is the decomposing schematic representation of torsion detent mechanism of the present utility model and torque sleeve.
Figure 14 is the structural representation that Figure 10 installs torsion detent mechanism.
Figure 15 is the decomposing schematic representation of Figure 14.
Figure 16 is the partial cutaway schematic at torsion detent mechanism of the present utility model position.
Figure 17 is the structural representation of directional protection mechanism of the present utility model and pressure seat.
Figure 18 is the decomposing schematic representation of Figure 17.
Figure 19 is the decomposing schematic representation of the utility model and power set, drill chuck.
Reference numeral:
1---turning cylinder, 2---gear mechanism, 3---function switching mechanism, 4---torque adjustment mechanism, 41---pressure seat, 411---chute, 412---pressure port, 42---torsion spring, 43---spiral block teeth, 431---slide rail, 432---groove, 433---briquetting, 434---external screw thread, 44---torque sleeve, 441---internal thread, 442---gear scale, 45---functional localization sheet, 46---puck, 47---pressure steel ball, 5---impact output mechanism, 51---moving impact disc, 511---waveform fluted disc, 52---roller, 521---roller card column, 53---roller seat, 531---roller slot position, 532---clamping block, 54---roller fixed support, 541---roller fixing hole, 542---lug boss, 543---blocked hole, 55---bearing, 7---torsion detent mechanism, 72---gear lid, 721---gear hole, 722---the second screw hole, 73---fixed cap, 731---knock hole, 732---installing hole, 733---the first screw hole, 74---ejector pin, 741---head into portion, 75---ejector pin spring, 8---hold-down mechanism, 9---directional protection mechanism, 91---directional protection fastener, 911---turning cylinder fixing hole, 912---directed protuberance, 913---vertical plane, 92---directional roller, 93---directed fixed cover, 931---fastener putting hole, 101---drill chuck, 102---power set.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Please refer to Fig. 1～19, multifunctional percussion drill of the present utility model comprises gear mechanism 2, turning cylinder 1, torque adjustment mechanism 4, impacts output mechanism 5, function switching mechanism 3, gear mechanism 2 can be driven by motor equal power device 102, make gear mechanism 2 drive turning cylinder 1 to rotate, and function switching mechanism 3 can be changed turning cylinder 1 as required between electric drill pattern and conflicting model, in use, the front end of turning cylinder 1 can connect drill chuck 101.
As shown in Fig. 3～7, impact output mechanism 5 of the present utility model, comprises moving impact disc 51, several roller 52, roller seat 53, roller fixed supports 54 for the moving impact disc 51 of conflicting.The moving sheathed turning cylinder 1 that is fixed on percussion drill of impact disc 51, makes turning cylinder 1 when rotating, and can drive moving impact disc 51 to rotate.Several rollers 52 are fixed on the front end of roller seat 53 by roller fixed support 54,, when impacting output, several rollers 52 of roller seat 53 front ends contact with moving impact disc 51.Roller seat 53 is sheathed on the turning cylinder 1 of percussion drill, and the function switching mechanism 3 of roller seat 53 and percussion drill is in transmission connection, and (connected mode belongs to prior art, repeat no more) herein, when impacting output, the function switching mechanism 3 of percussion drill can drive roller seat 53 to press forward, allow several rollers 52 of roller seat 53 front ends contact with moving impact disc 51, by moving impact disc 51 and several rollers 52, rub and produce vibratory impulse mutually.
Preferably, the rear end of moving impact disc 51 is provided with the waveform fluted disc 511 mating with several rollers 52, the form fit of the shape of each tooth of this waveform fluted disc 511 and roller 52, when several rollers 52 are contacted with the waveform fluted disc 511 of moving impact disc 51, because moving impact disc 51 is along with the rotation of turning cylinder 1 and the high low head between waveform fluted disc 511 and roller 52, the waveform fluted disc 511 of moving impact disc 51 can rub mutually with several rollers 52 and produce vibratory impulse.It is the principle of its vibratory impulse, identical with the impact output mechanism 5 of existing percussion drill, but, the utility model adopts several rollers 52 to substitute the corrugated fluted disc of front end of quiet impact disc of the impact output mechanism of existing percussion drill, and due to the rolling characteristic of roller 52 self, thus make the waveform fluted disc 511 of impact disc 51 and the frictional force between several rollers 52 less, therefore, the noise that produces during impact is little, power saving, is also not easy wearing and tearing, more durable.Certainly, according to said structure, also can adopt several rollers to substitute the waveform fluted disc 511 of moving impact disc 51 rear ends, such equivalent variations, all should belong to protection domain of the present utility model.
Preferably, the front end of roller seat 53 offers the roller slot position 531 of mating with roller 52, and the rear end of roller 52 is placed in roller slot position 531; Roller fixed support 54 offers the roller fixing hole 541 mating with roller 52, and the front end of roller 52 sees through roller fixing hole 541 and protrudes forward; The both sides of roller 52 are provided with roller card column 521, and the both sides of roller fixing hole 541 are raised with forward the lug boss 542 mating with roller card column 521, and the roller card column 521 of roller 52 both sides is connected in the lug boss 542 of roller fixing hole 541 both sides.Said structure, can make roller 52 connect and fix preferably, the friction in the time of can not affecting again roller 52 and contact with the waveform fluted disc 511 of moving impact disc 51.
Preferably, the quantity of roller 52 is 5, and 5 rollers 52 are uniformly distributed in roller fixed support 54 circumferentially for being; The front end of roller seat 53 is provided with 5 and is equally distributed clamping block 532 circumferentially, roller fixed support 54 offers the blocked hole corresponding with clamping block 532 543, wherein, the blocked hole 543 of roller fixed support 54 is connected in the clamping block 532 of roller seat 53, makes roller fixed support 54 be fixed on preferably the front end of roller seat 53.Wherein, roller seat 53 is by bearing 55, to be sheathed on the turning cylinder 1 of percussion drill.Certainly, above-mentioned moving impact disc 51, roller fixed support 54, bearing 55 etc. all offer for being sheathed on the hole of turning cylinder 1.
Operation principle of the present utility model: when percussion drill need to impact operation, the function switching mechanism 3 of percussion drill drives roller seat 53 to press forward, several rollers 52 of roller seat 53 front ends are contacted with the waveform fluted disc 511 of moving impact disc 51, because moving impact disc 51 is along with the rotation of turning cylinder 1 and the high low head of waveform fluted disc 511, waveform fluted disc 511 by moving impact disc 51 rubs and produces vibratory impulse mutually with several rollers 52, thereby make turning cylinder 1 produce vibratory impulse when rotating, realize the output of conflicting model.Certainly, when percussion drill does not need to impact operation, it is separated with moving impact disc 51 that the function switching mechanism 3 of percussion drill can drive roller seat 53, and several rollers 52 are separated with waveform fluted disc 511.
Therefore, when impacting output, several rollers 52 of the utility model are not rigid contacts with the waveform fluted disc 511 of moving impact disc 51, and due to the rolling characteristic of roller 52 self, thus make the waveform fluted disc 511 of impact disc 51 and the frictional force between several rollers 52 little, therefore, the noise that produces during impact is little, power saving, also be not easy wearing and tearing, more durable, long service life.
As shown in Fig. 8～12, torque adjustment of the present utility model mechanism 4, the pressure seat 41 that comprises the turning cylinder 1 that is sheathed on percussion drill, in pressure seat 41, be provided with for regulating the hold-down mechanism 8 of the moment of torsion output of percussion drill, by the compression degree of regulation hold-down mechanism 8, just can regulate the moment of torsion output of percussion drill, this belongs to prior art, repeats no more herein.Torque adjustment of the present utility model mechanism 4 also comprises several torsion springs 42, several spiral block teeth 43, the torque sleeve 44 corresponding with several torsion springs 42.The outside of pressure seat 41 offers several chutes 411 corresponding with several spiral block teeth 43, several even compartment of terrains of chute 411 are distributed in the outside of pressure seat 41, the both sides of spiral block teeth 43 are provided with the slide rail 431 mating with chute 411, spiral block teeth 43 are connected in chute 411 by slide rail 431, spiral block teeth 43 are slidably mounted in chute 411, and spiral block teeth 43 can slide along chute 411 front and back.The bottom of chute 411 offers pressure port 412, and be inserted in pressure port 412 at the rear portion of torsion spring 42, and the rear end of torsion spring 42 sees through the hold-down mechanism 8 that pressure port 412 props up percussion drill; Spiral block teeth 43 offer groove 432, in this groove 432, are provided with briquetting 433, and be inserted in groove 432 front portion of torsion spring 42, and the front end of torsion spring 42 props up briquetting 433.The inwall of torque sleeve 44 arranges internal thread 441, the arranged outside of spiral block teeth 43 has the external screw thread 434 mating with internal thread 441, torque sleeve 44 is sheathed on the periphery of several spiral block teeth 43 by internal thread 441 and being threaded of external screw thread 434, make torque sleeve 44 promote several spiral block teeth 43 and slide simultaneously by rotating.From said structure, can find out, torsion spring 42 is placed between the hold-down mechanism 8 of spiral block teeth 43 and percussion drill, so, can overlap 44 by driving torque and promote 43 slips of spiral block teeth, by spiral block teeth 43 compression torsion springs 42, compressed again the hold-down mechanism 8 of percussion drill, realize the moment of torsion output that regulates percussion drill.
Preferably, the torsion spring 42 of the utility model torque adjustment mechanism 4 is 6, spiral block teeth 43 also correspond to 6,6 even compartment of terrains of torsion spring 42 are circle distribution, while making torsion spring 42 compress the hold-down mechanism 8 of percussion drill, the hold-down mechanism 8 of percussion drill stressed more even, thus make the moment of torsion output of percussion drill more accurate.
Preferably, torque adjustment of the present utility model mechanism 4 also comprises functional localization sheet 45, and functional localization sheet 45 is sheathed on the turning cylinder 1 of percussion drill, and functional localization sheet 45 props up the front end of spiral block teeth 43, with spacing spiral block teeth 43, spiral block teeth 43 can not skidded off from chute 411.
Preferably, in the pressure port 412 of pressure seat 41, be provided with puck 46, pressure steel ball 47, the rear end of torsion spring 42 props up the hold-down mechanism 8 of percussion drill successively through puck 46, pressure steel ball 47, be that puck 46 is between the rear end and pressure steel ball 47 of torsion spring 42, make the pressure of the rear end of torsion spring 42 can pass through successively puck 46, pressure steel ball 47 and pass to the hold-down mechanism 8 of percussion drill, this structure can make hold-down mechanism 8 stressed more even of percussion drill.Wherein, puck 46 is cylinder.
Operation principle of the present utility model: when user need to regulate the output torque of percussion drill turning cylinder 1, user can pass through driving torque cover 44 forward or backwards, make torque sleeve 44 promote spiral block teeth 43 backward or to front slide, make again 43 compressions of spiral block teeth or loosen torsion spring 42, thereby make torsion spring 42 compress or loosen the hold-down mechanism 8 of percussion drill, to realize accordingly the increase of percussion drill turning cylinder 1 output torque or to reduce.
Therefore, compare with existing torque adjustment mechanism, torque adjustment of the present utility model mechanism 4 adopts a plurality of (being several) torsion springs 42 and spiral block teeth 43 and compresses the hold-down mechanism 8 of percussion drill, making pressure be even circumferential disperses, so more laborsaving when regulating moment of torsion, and simple in structure, production cost is low.
As shown in Figure 13～16, torque adjustment of the present utility model mechanism 4 is also provided with torsion detent mechanism 7, torsion detent mechanism 7 comprises gear lid 72, is fixed on the ringwise fixed cap 73 of pressure seat 41 front ends, gear lid 72 is fixed on the front end of torque sleeve 44, fixed cap 73 is positioned at torque sleeve 44, torque sleeve 44 can be rotated around fixed cap 73, certainly, torque sleeve 44, gear lid 72, fixed cap 73 are all sheathed on the turning cylinder 1 of percussion drill, like this, fixed cap 73 is fixing, and gear lid 72 can rotate along with torque sleeve 44.And gear lid 72 is positioned at the place ahead of fixed cap 73, specifically, the rear end end face of gear lid 72 and the front end end face of fixed cap 73 are laminating to a certain degree, so just can make the portion that heads into 741 of ejector pin 74 can head in gear hole 721.Gear lid 72 offers several gear holes 721, and several gear holes 721 are circumferentially-spaced, certainly, and gear hole 721 corresponding function shelves or one grade of torsion.Fixed cap 73 is provided with ejector pin 74, ejector pin spring 75, and ejector pin 74 is flexiblely installed on fixed cap 73 by ejector pin spring 75, like this, makes ejector pin 74 have certain retractility.Fixed cap 73 offers and gear hole 721 corresponding knock hole 731 on circumference, the front end of ejector pin 74 is provided with for heading into the portion that heads into 741 in gear hole 721, this heads into portion 741 and through knock hole 731, protrudes from the front end of fixed cap 73, and the portion that heads into 741 of ejector pin 74 can be headed in gear hole 721; And head into portion 741 and be hemisphere shape, when gear lid 72 is rotated along with torque sleeve 44, to heading into portion 741, produce certain pressure, ejector pin 74 is retracted to a certain degree, and then the portion that heads into 741 is exited from original gear hole 721, until gear lid 72 is not when rotate, ejector pin 74 stretches out again due to the restoring force of spring, the portion that heads into 741 is headed in new gear hole 721, and realization is reorientated.
Preferably, fixed cap 73 is provided with the installing hole 732 for ejector pin 74 and 75 installations of ejector pin spring, the rear sleeve that is ejector pin 74 is located in ejector pin spring 75, then ejector pin spring 75 is arranged in installing hole 732 again, and the portion that heads into 741 of ejector pin 74 protrudes from the front end of fixed cap 73 through knock hole 731.
Preferably, the surface in torque sleeve 44 outsides is provided with the gear scale 442 corresponding with several gear holes 721, so that user is adjusted to the output torque needing according to gear scale 442.Wherein, fixed cap 73 is provided with the first screw hole 733, and fixed cap 73 is screwed in pressure seat 41; Gear lid 72 is provided with the second screw hole 722, and gear lid 72 is screwed in the front end of torque sleeve 44.Certainly, above-mentioned gear lid 72, fixed cap 73 etc. all offer for being sheathed on the hole of turning cylinder 1.
Operation principle of the present utility model: when user need to regulate the output torque of percussion drill turning cylinder 1, user can overlap 44 by driving torque, make torque sleeve 44 drive gear lid 72 to rotate, the portion that heads into 741 of ejector pin 74 is exited from original gear hole 721, until user stops operating, torque sleeve 44(is adjusted to the output torque needing) time, gear lid 72 does not rotate yet, now, the portion that heads into 741 of ejector pin 74 heads in new gear hole 721 again, and realization is reorientated.
Therefore, torsion detent mechanism 7 of the present utility model is simple in structure, production cost is low, and, torsion detent mechanism 7 of the present utility model adopts the portion that heads into 741 of ejector pin 74 to head into the gear hole 721 of gear lid 72 and realizes location, when location, only have driving torque to overlap and apply certain dynamics at 44 o'clock, just can make the portion that heads into 741 of ejector pin 74 exit from gear hole 721, after having good positioning, the portion that heads into 741 of ejector pin 74 is not easy to get loose from gear hole 721, so torsion detent mechanism 7 position stabilities of the present utility model are better.
As shown in Figure 17 and Figure 18, multifunctional percussion drill of the present utility model also comprises directional protection mechanism 9, and directional protection mechanism 9 comprises the directional protection fastener 91 that is in transmission connection with gear mechanism 2, two directional rollers 92, directed fixed cover 93; Directional protection fastener 91 center offers turning cylinder fixing hole 911, and directional protection fastener 91 is connected and fixed in the rear end of turning cylinder 1 by turning cylinder fixing hole 911, and therefore, gear mechanism 2 is to drive turning cylinder 1 to rotate by directional protection fastener 91.Directed fixed cover 93 connects and fixes in the rear portion of pressure seat 41; directed fixed cover 93 offers circular fastener putting hole 931; this fastener putting hole 931 forms fastener rest area with the rear portion of pressure seat 41, and directional protection fastener 91 is placed in fastener rest area rotationally.Wherein, the cylinder that directional protection fastener 91 is hollow, and directional protection fastener 91 bilateral symmetry is wherein provided with the directed protuberance 912 that drives directional roller 92 for forward (as clockwise), and the other bilateral symmetry cutting of directional protection fastener 91 is useful on oppositely the vertical plane 913 that (as counter clockwise direction) blocks directional roller 92; One of them directional roller 92 is placed in two sides between directed protuberance 912, and another directional roller 92 is placed in two opposite sides between directed protuberance 912.
Directional protection of the present utility model mechanism 9 operation principles are: when gear mechanism 2 drives turning cylinder 1 forward rotation by directional protection fastener 91, belonging to percussion drill normally works, now, directional roller 92 can not block directional protection fastener 91, but the directed protuberance 912 of directional protection fastener 91 drives directional roller 92 to rotate; When turning cylinder 1 is rotated backward by (as: artificial etc. reason cause); because the bilateral symmetry cutting of directional protection fastener 91 has vertical plane 913; so according to eccentric center principle; at directional roller 92 backscrollings during to vertical plane 913; for cylindrical directional roller 92, can be stuck in vertical plane 913 places; directional protection fastener 91 can not be rotated backward again; be that turning cylinder 1 can not rotate backward again; such benefit is, prevents that gear mechanism 2 is because the rotating backward of turning cylinder 1 such as (as: artificial reason cause) damaged.Therefore, directional protection of the present utility model mechanism 9 can make turning cylinder 1 forward rotation smoothly, normal while working, and can also protect the gear mechanism 2 can be because rotating backward of turning cylinder 1 damaged.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; the technical solution of the utility model is modified or is equal to replacement, all belong to protection domain of the present utility model.
Claims (10)
1. a multifunctional percussion drill, comprise gear mechanism, turning cylinder, torque adjustment mechanism, impact output mechanism, function switching mechanism, it is characterized in that: described impact output mechanism comprises moving impact disc, several rollers for the described moving impact disc of conflicting, roller seat, roller fixed support, described moving impact disc is sheathed is fixed on described turning cylinder, described several rollers are fixed on the front end of roller seat by described roller fixed support, described roller cover for seat is located at described turning cylinder, and described roller seat and described function switching mechanism are in transmission connection;
Described torque adjustment mechanism comprises the pressure seat that is sheathed on described turning cylinder, in described pressure seat, be provided with for regulating the hold-down mechanism of moment of torsion output, described torque adjustment mechanism also comprises several torsion springs, several spiral block teeth, the torque sleeve corresponding with described several torsion springs; The outside of described pressure seat offers several chutes corresponding with described several spiral block teeth, the even compartment of terrain of described several chutes is distributed in the outside of described pressure seat, the both sides of described spiral block teeth are provided with the slide rail mating with described chute, and described spiral block teeth are slidably mounted in described chute; The bottom of described chute offers pressure port, and be inserted in described pressure port at the rear portion of described torsion spring, and the rear end of described torsion spring props up described hold-down mechanism through pressure port; Described spiral block teeth offer groove, in this groove, are provided with briquetting, and be inserted in described groove the front portion of described torsion spring, and the front end of described torsion spring props up described briquetting; The inwall of described torque sleeve arranges internal thread, the arranged outside of described spiral block teeth has the external screw thread mating with described internal thread, described torque sleeve is sheathed on the periphery of described several spiral block teeth by internal thread with externally threaded being threaded, and makes described torque sleeve promote described several spiral block teeth and slide simultaneously by rotating;
Described torque adjustment mechanism is also provided with torsion detent mechanism, described torsion detent mechanism comprises gear lid, is fixed on the ringwise fixed cap of described pressure seat front end, described gear lid is fixed on the front end of described torque sleeve, described fixed cap is positioned at described torque sleeve, described torque sleeve can be rotated around fixed cap, and described gear lid is positioned at the place ahead of described fixed cap; Described gear lid offers several gear holes, described several gear holes are circumferentially-spaced, described fixed cap is provided with ejector pin, ejector pin spring, described ejector pin is flexiblely installed on described fixed cap by ejector pin spring, described fixed cap offers and described gear hole corresponding knock hole on circumference, the front end of described ejector pin is provided with for heading into the portion that heads in described gear hole, this portion of heading into sees through described knock hole and protrudes from the front end of described fixed cap, and described in the portion of heading into be hemisphere shape.
2. multifunctional percussion drill according to claim 1, is characterized in that: the rear end of the moving impact disc of described impact output mechanism is provided with the waveform fluted disc mating with described several rollers.
3. multifunctional percussion drill according to claim 1 and 2, is characterized in that: the front end of described impact output mechanism roller seat offers the roller slot position of mating with described roller, and the rear end of described roller is placed in roller slot position; Described roller fixed support offers the roller fixing hole mating with described roller, and the front end of described roller sees through roller fixing hole and protrudes forward; The both sides of described roller are provided with roller card column, and the both sides of described roller fixing hole are raised with forward the lug boss mating with described roller card column, and the roller card column of described roller both sides is connected in the lug boss of described roller fixing hole both sides; Described roller seat is to be located at described turning cylinder by bearing holder (housing, cover).
4. multifunctional percussion drill according to claim 3, is characterized in that: the quantity of the roller of described impact output mechanism is 5, and 5 rollers are uniformly distributed in described roller fixed support circumferentially for being; The front end of described roller seat is provided with 5 and is equally distributed clamping block circumferentially, and described roller fixed support offers the blocked hole corresponding with described clamping block.
5. multifunctional percussion drill according to claim 1, is characterized in that: the torsion spring of described torque adjustment mechanism is 6, and described spiral block teeth also correspond to 6.
6. multifunctional percussion drill according to claim 1, it is characterized in that: described torque adjustment mechanism, also comprise functional localization sheet, described functional localization sheet is sheathed on described turning cylinder, and described functional localization sheet props up the front end of spiral block teeth, and described functional localization sheet is between described pressure seat and described fixed cap.
7. according to the multifunctional percussion drill described in claim 5 or 6, it is characterized in that: in the pressure port of described pressure seat, be provided with puck, pressure steel ball, the rear end of described torsion spring props up described hold-down mechanism through puck, pressure steel ball successively.
8. multifunctional percussion drill according to claim 1, is characterized in that: the fixed cap of described torsion detent mechanism is provided with the installing hole for described ejector pin and ejector pin spring fitting; The surface in described torque sleeve outside is provided with the gear scale corresponding with described several gear holes.
9. multifunctional percussion drill according to claim 8, is characterized in that: described fixed cap is provided with for the first fixing screw hole, and described gear lid is provided with for the second fixing screw hole.
10. multifunctional percussion drill according to claim 1, is characterized in that: also comprise directional protection mechanism, described directional protection mechanism comprises the directional protection fastener that is connected with described gear mechanism transmission, two directional rollers, directed fixed cover; The center of described directional protection fastener offers turning cylinder fixing hole, makes described directional protection fastener connect and fix the rear end in described turning cylinder by described turning cylinder fixing hole; Described directed fixed cover connects and fixes in the rear portion of described pressure seat, described directed fixed cover offers circular fastener putting hole, the rear portion of this fastener putting hole and described pressure seat forms fastener rest area, and described directional protection fastener is placed in described fastener rest area rotationally; The cylinder that described directional protection fastener is hollow, and described directional protection fastener bilateral symmetry is wherein provided with the directed protuberance that drives described directional roller for forward, and the other bilateral symmetry cutting of described directional protection fastener is useful on the vertical plane that oppositely blocks described directional roller; One of them directional roller is placed in the side between described two directed protuberances, and another directional roller is placed in the opposite side between described two directed protuberances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461479.XU CN203510148U (en) | 2013-07-30 | 2013-07-30 | Multifunctional percussion drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461479.XU CN203510148U (en) | 2013-07-30 | 2013-07-30 | Multifunctional percussion drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203510148U true CN203510148U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461479.XU Withdrawn - After Issue CN203510148U (en) | 2013-07-30 | 2013-07-30 | Multifunctional percussion drill |
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| Country | Link |
|---|---|
| CN (1) | CN203510148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381589A (en) * | 2013-07-30 | 2013-11-06 | 东莞宝顺力电子塑胶制品厂有限公司 | Multifunctional percussion drill |
-
2013
- 2013-07-30 CN CN201320461479.XU patent/CN203510148U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381589A (en) * | 2013-07-30 | 2013-11-06 | 东莞宝顺力电子塑胶制品厂有限公司 | Multifunctional percussion drill |
| CN103381589B (en) * | 2013-07-30 | 2015-08-05 | 东莞宝顺力电子塑胶制品厂有限公司 | Multifunctional percussion drill |
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