DE1969581U - GEAR ARRANGEMENT FOR MOTOR-DRIVEN, PREFERABLY BY AN ELECTRIC MOTOR, DRIVEN DRILLS. - Google Patents

Description

DR. BERG DiPL.-INe. STAPF

PATENTANWÄLTE 8 MÜNCHEN 2, HILBLESTRASSE 2O

Attorney's File 16 45o July 24, 1967

HILTI AKTIENGESELLSCHAFT IN SCHAAN

(Liechtenstein)

Gstrisbs arrangement for motorized., Preferably rotary hammers driven by an electric motor

The innovation relates to a Getriebsanordnung for motor preferably driven by a Elektfforaotor ₉ bai the dis driving force in two Arbsitsfunktiomisn divided wirdo namely in sine rotational motion for rotating the Bohraxs and in a direction Bohrachs © gerichtet® towards · = ds longitudinal movement 2um driving the HaroraeEs _e

the above branch wisd diQ

movement of dms driving WsIIe ₀ di © © © in Zafonsits! carries on sin in dissss Zahnritz ©! Singreifend © © cogwheel is used from the then back and forth lingsbsaisgung to drive the Hantnsra and via sin further or ashrsr © further cogwheels the rotary movement of the © Bohrers b @ w @ sk © t © lligt This arrangement must both © Teilüsslft © each of a straight roit the gear in mesh stshondan tooth of the drive pinion are transmitted <,

Since these machines have a relatively large drive power to achieve a good drilling performance, the weight and volume of the machines and datait ayeh of the engine should be as small as possible, so the drive shaft should turn very high speed. ) that the speed of the Bob = rer and the visual frequency of the HamsHsrs abus ya © in many times smaller than the number of revolutions d © r Antsäifesw © !! © his WUsSSn ₀ eats sin large reduction ratio dss Zahnsadlgetriefeiee sr- = fordsrlieho To do this with as few gears as possible to erreieh @ n _D, it is necessary that the ρ driving © ritual wöglishst Islein or "with Riögliehst little teeth wsrsshso" is a result © rgibt is one unterschnittsne YND in feesyg ayf Bieg © f @ stiglk © it MMB unfavorable tooth shape

Through the operation of diessr Masehinsn iiisrden at a & s duseh dss hitting the Haramsrs and 2 _O B _O by ruekartifDs \ / eskl @ iameFB d @ e Bohrsrg the Zahnrädlsr and bssond © E @ the Antrisbssitgel ge etas! "Beanspjfychtp dlaas it infolg © ä®s unfavorable tooth fossi often lead to broken teeth ara pinion and as a consequence to the toilet also to Zabnbrüehsn at other pools koünato

hst sy see

According to the masonry, the task is gsiostp that the force required to actuate the two articulation functions is already divided into two partial juices by two gears engaging in the actuation seat., This arrangement requires one in engagement pinion gear each nor one ά @ τ two partial forces are transmitted ₀ whereby the stress' on the tooth is significantly reduced

Advantageously, the two will be included in the drive scoring sin · = meshing gears exactly or approximately genay geaenübeBliagem arrangedj, whereby the toothing on dis Ritssl The bending moment acting on the shaft is largely balanced and an additional brush security is achieved

The firing unit is now at hand, for example, wiedergs · = tied drawing ,, the © inen partially "section of the NSU @ ~ rungsgssnässs Sown darateilt _D close explained wsrdsns

On the machine housing 1 is fixed sin motor 2 "whose stored at 3 Walle 4 © INERO Zahnsitsel S vessshsn istp in the fi both gegenuberiisgsmdsn gear and 7 aingrsif © n The gear is β ver on the bsi 8 YND 3 gelagsEtsn Walle 10 x = Securely fastened and transmits its bending movement to the K @ f @ l £ itz @ l 1I _O Letsteres engages in the ayf dsw cylinder 12 securely fastened E <sg © lrad 13 © in ,, uelehes at 14 dEehbar gslageet is YND Obesteägt so the Dsehb © u © gyng on dan cylinder 12 ₀ verdrehungssiohes at the end © iS di © Wsrkseugaufnalh "® 16 ¹ h® ** is consolidating ₀ una dis zusamijsn in AESS ara MascSüinengshäuae translated Hölse 17 by da © La§ ss Ii sacüaSynd a ^ ial & h§® are ο

The tis3? Ts2 © ugeisfn®hi3 © IS lbssätst ein® dlys © lhg © ln) © ndiQ S © SDJ? Y! Ni | [{7 for longitudinal guidance and VeEdrehuirsfefflitnahCiiffi) d! © s Bobs & JS! Slkg © SJi§ © s rait einsrai © ntsps © ch @ ndan Psofil _s E ₀ B ₀ © in © bi

The matching shank of the drilling tool 19 can be moved around the rake attachment and says wit @ © ina "End 19a in the cylinder port 12a", against the failure of the bolt on the boltwork "= tool is the bracket 20 that can be swiveled out to change the tool

When the machine is in operation, the hammer 21, which is designed as a Pneyroatik Koibso and which moves back and forth in the cylinder bore by means of an air cushion 22 from the dsm in the cylinder bore, hits the drill shaft end 19a when the machine is in operation "reciprocating motion is set and meet beira on ayf ämn BohEesscSiiaf ssine Bswsgungsenergis abruptly to the drill übarträgto the drive piston 23 receives its'm · = · YND forth be => wsgung übsr the crankpin YND on the piston pin 24 25a mounted Pleusi 26 dar rotating at 27 ynd 28 ge <= mounted crankshaft ZS ₉ ayf, the gear wheel 7 driven by the motos ^ pinion S ang © <is fastened with a veirdrshungssichar _o

The switch 30 Stsnn built into the handle 29 turns the machine on and off _{or off}

Claims (1)

Ά4U 502 * 7/24/67 X ₀ gear assembly for rootorisehp preferably duscb sinan trisbskraft divided into two Arfoeitsfurttetionen wisd ₀ zi ^ ar im a © rotary movement to turn the hammer and in @ina in Riehumg Bohsesachs © gisriohtst © hin ° ynd de LMngsbswbewegung to drive the hammer? This ssiehnet ,, that the force required to antsisfe dee both Asfeaitsfunfetionen already divided by the drive pinion (1) al into two partial forces, the two in the drive pinion (5) meshing with the gears (S ₀ T) in two force = routes to be guided _o Getsiefeeanosdriiyng naeh AnspEyca I ₀ by the fact that the two sides in the Antsiebseits®! (i) mingsexfenamn ZahnsädBS (ύ _ΰ 7) genay or almost! are genuinely fearful »