CS205453B1

CS205453B1 - Hammer drill

Info

Publication number: CS205453B1
Application number: CS497077A
Authority: CS
Inventors: Stefan Hubik
Original assignee: Stefan Hubik
Priority date: 1977-07-27
Filing date: 1977-07-27
Publication date: 1981-05-29

Description

Vynález ae týká vrtacieho kladiva a rieái problém vyvodenia priklopu a otáčaváho momentu vrtacieho kladiva.The invention relates to a hammer drill and solves the problem of the drill hatch and torque torque.

Dotorajáio výkonnéjáio elektrická prlklopová vrtačky sú poháňané elektromotorem, pričom otáčavý moment vřetena je odvedený od elektromotoru pomoeou ozubeného převodu a příklop je vyvedený pomoeou exeentra. Takáte rieáenia majú poměrně zležitú konátrukeiu a poměrně volku poruchovost.Previously, more efficient electric hinged drills are driven by an electric motor, wherein the spindle torque is removed from the electric motor by a gear transmission and the hatch is driven by an exeentra. Such solutions have relatively important konátrukeiu and relatively bull failure.

Uvedená nedostatky v podstatnej miere odstraňuje vrtaeie kladivo, ktorého podstata apočíva v tom, že v jeho kostro je usporiadaný elektromagnet, ktorého kotva je jedným konoom uložená v kotovnom čapo a druhý konieo opatřený kladivkom, uaporladanom v osi hriadela, otočná a posuvno uloženého v hrladolových ložiskách. Hriadel¹ jo ukončený upínacou hlavou a je úpatrený poaúvne uloženou rohatkou a hlavnou západkou uohytelnou v držlaku, klzne uloženou v držlakovom vedeni. Držiak je prostrednlotvom hlavného čapu apojoný s pákovým meehanizmom, ktorý jo v dotyku s kolikou kotvy. Pákový mechanizmus je vytvořený rovinným klbom, v ktorom je uložená ojnioa, spojená kyvné držiakom,rameno, kyvno uložená v pevnej podporo, ako aj konieo tyčky, pričom tyčka pákového mechanizmu jo uložená v tyčkovou vedeni a je na ňu nasunutá tyčková pružina, usporiadaná medzi pružinovou podporou opretou o kostru a výstupkom, ktorým je tyčka opatřená. K podstato vynálezu patři aj to, že rohatka je v zábero a poiatnou západkou, otočné úchytenou jedným konoom ku kostro, pričom druhý konieo jo přitlačený do záboru přítlačnou pružinou opretou o kostru.These drawbacks are substantially eliminated by a hammer drill, the essence of which is that an electromagnet is arranged in its skeleton, the anchor of which is an anchor mounted in the anchor pin and the other provided with a hammer mounted in the shaft axis rotatable and slidably mounted . The shaft ^{1 is} terminated by a clamping head and is provided with a movable ratchet and a main latch engageable in the holder, slidably mounted in the holder guide. The holder is through the main pin and connected with lever meehanism, which is in contact with the anchor pin. The lever mechanism is formed by a planar joint in which a connecting rod is mounted, connected by a swinging bracket, an arm, a pendulum mounted in a fixed support as well as a rod rod, the rod of the lever being supported in a rod guide and a rod spring disposed between the spring a support supported on the carcass and a projection provided with the rod. It is also an object of the invention that the ratchet is in engagement with an initial latch pivotally fastened by one cone to the carcass, the other being pressed into engagement with a pressure spring supported on the carcass.

Vrtacím kladivem podl'a vynálezu sa v dosledku jednoduchosti končtrukeie zvýšiAs a result of the simplicity of construction, the drill hammer according to the invention is increased

20S 433 účinnost' zariadenia, znlžia aa nároky na presnosť výroby a znlžia sa aj výrobně niklady, pričom jo zabezpečená provádzková spolehlivost.20S 433, the efficiency of the apparatus is reduced and the demands on manufacturing accuracy are reduced, and the production nickel is also reduced, while providing string reliability.

Vrtacio kladivo podlá vynálezu schematicky znázorněná na připojených výkresech.A hammer drill according to the invention schematically shown in the attached drawings.

Na obr* 1 je znázorněná celková zostava zariadenia v náryse. Na obr. 2 je v náryse znázorněný pákový mechanizmus vřtaeiahe kladiva. Na obr. 3 Je znázorněný nárysný pohlfcd na uaporladanie poiatnej západky. Obr. 4 znázorňuje konstrukčně uaporiadanie rohatky a hlavněJ západky.Fig. 1 shows the overall assembly of the device in front view. In FIG. 2 is a front view of a lever hammer mechanism. In FIG. 3 is a front elevational view illustrating the start of the latch. Fig. 4 shows the construction of the ratchet and of the ratchet barrel.

Vrtaeie kladivo pozostáva z kostry _1, elektromagnetu 2, ktoráho kotva 3 jo jsdpým koncom uložená v kotevnom čapě 4 a druhý koniec je opatřený kladivkom 5 uoporladanom v oal hriadola 6, otočné a posuvno uloženého v hrisdolových ložiskách 7. Hriadel* 6 je ukončený uplnaoou hlavou 8 pro upnutia vřtacleho alobo aokacieho náatroja a jo opatřený posuvno uloženou rohatkou 9 a hlavnou západkou 10, uchytonou v držiaku 11, klzne uložonom v držiakovom vedeni 12, ktoré je časťou kostry 1. Držiak 11 je prostrednlotvom hlavného čapu 13 spojený a pákový· meohanizmom 14, ktorý jo v dotyku o kollkom 31 kotvyThe hammer drill consists of a carcass 1, an electromagnet 2, the armature 3 being at its end mounted in the anchor bolt 4 and the other end provided with a hammer 5 mounted in the shaft 6 rotatably and slidably mounted in the shaft bearings 7. The shaft 6 is terminated completely. 8 for clamping a drill alobo aocation tool and provided with a sliding ratchet 9 and a main latch 10, retained in a holder 11, slidably mounted in a holder guide 12 which is part of the frame 1. The holder 11 is connected by means of the main pin 13 and lever lever 14 , which in touch on the anchor bolt 31

3. Pákový mechanizmus 14 je vytvořený rovinným klbom 15 , v ktorom jo uložená ojnioa 16 spojená s držiakom 11. rameno 17. kyvho uložené v pevnej podpore 18, oko aj jeden koniec tyčky 19. Tyčka 19 je uložená v tyčkovom voděni 20 a je na ňu nasunutá tyčková pružina 21 usporiadaná medzi pružinovou podporou 22. oprotou o kostru 1 a výstupkem 23, ktorým je tyčka 19 opatřená. Držiak 11 hlavněj západky 10 jo opatřený západkovou pružinou 24, oprotou o blavnú západku 10 a o samotný držiak 11. Posuvno uložená robotka 9 je v zábore a poiatnou západkou 25, otočné uohytonou jedným koncom ku kostro J), pričom druhý konieo jo přitlačený do záboru přítlačnou pružinou 20, oprotou o koatru JL. V oai hriadela 6 jo zo strany ohrbta kladívka 5 uaporiadaný nastavitelný nárazník 27. V držiaku 11 jo ukotvena vratná pružina 28, pre ochranu klbov pákového meeheniamu 14 proti atriodavému namáhania. Pákový mechanismus 14 je opatřený aj poisťovaelm olementom 29 a kotva 3 apStnou pružinou 30, ktoroj druhý koniec je uchytený na koatre 1.3. The lever mechanism 14 is formed by a planar joint 15 in which an ojnioa 16 coupled to the bracket 11 is attached to the arm 11 of the pendulum supported in the fixed support 18, the eye and one end of the rod 19. The rod 19 is supported in the rod water 20 and a rod spring 21 disposed therebetween, arranged between the spring support 22 by the abutment on the carcass 1 and the projection 23 with which the rod 19 is provided. The barrel latch holder 10 is provided with a latch spring 24, bearing against the latch latch 10, and the bracket 11 itself. The movably mounted robot 9 is in engagement and a latch 25, rotatable one end to the carcass 11, the other horse pressed into the engagement. spring 20, bearing on coil JL. An adjustable bumper 27 is arranged in the shaft 6 on the side of the bore of the hammer 5, and a return spring 28 is anchored in the holder 11 to protect the joints of the lever mechanism 14 against atrial stress. The lever mechanism 14 is also provided with an insured olement 29 and an anchor 3 and a spring 30, the other end of which is attached to the carriage 1.

Punkcia zariadenia jo taká, že po zapojeni oievky elektromagnetu 2 na slet, protéká eievkou striedavý alebo pulzujúol prúd elektrický. V aúlade o priobohom oloktriekého prúdu elektromagnet 2 vytvoří atriodavé alebo moniaco sa magnetické pole, v dósledku čoho jádro elektromagnetu 2 přitahuje kotvu 3 β kladivkom 5. V súlsdo o priobohom magneticko j indukole sila vyvedená elektromagnetem 2 překonává silu tyčkovéj pružiny 21.The function of the device is such that, when the solenoid 2 is connected to the ground, an alternating or pulsating electric current flows through the coil. In accordance with the current of the stray current, the electromagnet 2 generates an atriodic or mono magnetic field, as a result of which the core of the electromagnet 2 attracts the armature 3 by a hammer 5. In accordance with the electromagnetic inducing force.

Kotva 3 a kladivkou 5 vykonává vibračný pohyb podfa priebehu aagnotického polo elektromagnetu 2. Kladívko 5 naráža ýri svojom doprodnom pohybe na hriadel* 6, odovzdá mu přitom časť avojoj klnetickoj energie a v důsledku toho hriadel* β poskočí dopředu. V uplnacej hlavo 8 hriadela 8 je upnutý praeovný nástroj. Súčasne pri doprodnom pohybo kladívka 5 kolík 31 kotvy 3 poeúva tyčku 19 dopředu, pričom jo tyčkoví pružina 21 otláčanú. Tyčka 19 pri tomto pohybo pomocou ramena 17 a ojnioe 16 poeúva držiak 11 a hlavnou západkou 10. ktorá pootáčá rohatku 9 a tým aj hriadel* 6. Po pootočeni robotky 9 zaskočí poiatná západka 25, tlačená přítlačnou pružinou 26. Po náraze kladívka 5 na hriadel* 6 o odraze od noho sa kotva 3 a kladivkom 5 vrátia do východzoj polohy. Tomuto pohybu napomáhá tyčková pružina 21 ako aj apStná pružina 30 a vratná pružina 28, pričom aa tyčka 19 pohybuje omorom dozadu, držiak 11 sa poaúva spatné a hlavná západka 10 tlačená západkovou pružinou 24 na rozhatku 9 aa kfžo po zube rohatky 9, poklaí nezapadne modzi zuby. V tedy jo už kotva 3 a kladivkom 5 vo svojej východzoj poloho. Intenzitu úderu možno regulovat' okrem lnýeh úprav aj pomocou nastavitelného náraznika 27.The anchor 3 and the hammer 5 perform a vibration movement in accordance with the course of the aagnotic semi-electromagnet 2. The hammer 5 impinges upon its lateral movement on the shaft * 6, transmitting a portion of its climatic energy and consequently the shaft * β jumps forward. A working tool is clamped in the shaft head 8. At the same time, during the forward movement of the hammer 5, the pin 31 of the armature 3 moves the rod 19 forwards, the rod spring 21 being compressed. The rod 19 in this movement by means of the arm 17 and the connecting rod 16 moves the holder 11 and the main pawl 10, which rotates the ratchet 9 and hence the shafts 6. After turning the robot 9, the latch 25, pushed by the pressure spring 26 engages. * 6, the anchor 3 and the hammer 5 return to the starting position. This movement is assisted by a rod spring 21 as well as an aperture spring 30 and a return spring 28, with the aa rod 19 moving backwardly, the bracket 11 sliding backwards and the main latch 10 pushed by the latch spring 24 at the spigot 9a. teeth. In then yeah already anchor 3 and hammer 5 in their east poloho. The intensity of the impact can be adjusted by adjusting the bumper 27 in addition to adjustments.

▼řtaeie kladivo možno použit' aj na sokanio, ak aa vyřadí z prevádzky otáčaoio zariadonio žalataním polohy tyčky 19 poloťovaclm olementom 29, pričom k spatnému pohybu kotvy 3 potom napomáhá apStná pružina 30.A hammer can also be used for a socio, if aa rotates the rotary device by clattering the position of the rod 19 with a beading element 29, whereby an anvil spring 30 is then assisted in the wrong movement of the anchor 3.

▼řtaoio kladivo jo možné použit* hlavně pri zhotovovaní dior do stavebnin, ale oj na aekanle, roztíkanls, zatikanis a pod.It is possible to use the hammer * mainly in making holes for building materials, but the drawbar on aekanle, spiked, zatikanis and the like.

Claims

OBJECT OF THE INVENTION

A hammer drill, characterized in that an electromagnet (2) is provided in its chassis (1), the anchor (3) of which is located at one end in the anchor pin (4) and the free end is provided with a hammer (5) arranged in the axle of the shaft (6) rotatable and sliding mounted in the shaft bearings (7), wherein the shaft (6) is terminated by a filling head (8) and is provided with a sliding mounted ratchet (9) with a main latch (10) 11), slidably mounted in the holder guide (12), the holder (11) being connected via a main pin (13) to a lever mechanism (14) which is in contact with the pin (31) of the armature (3).

A hammer drill according to claim 1, characterized in that the lever mechanism (14) is formed by a planar joint (15) in which the connecting rod (16) is mounted pivotally connected to the holder (11), the arm (17) a rigid support (18), as well as one end of the rod (19), of the lever mechanism (14) is mounted in the rod guide (20) and a rod spring (21) is disposed therebetween the spring support (22) supported on the carcass ( 1) and a projection (23) with which the rod (19) is provided,

Drill hammer according to items 1 and 2, characterized in that the holder (11) of the main pawl (10) is provided with a snap spring (24) supported by the main pawl (10) and also the holder (11) itself.

Drill hammer according to items 1 to 3, characterized in that the ratchet (9) engages with the locking pawl (25) rotatably fastened by one end to the carcass (1), the other horse being pressed into engagement by a pressure spring (26) resting on the skeleton (1).

Drilling hammer according to claim 1, characterized in that an adjustable bumper (27) is arranged on the back side of the hammer (5) in the shaft axis (6).

Drill hammer according to items 1 to 3, characterized in that a return spring (28) is anchored in the holder (11).

Drill hammer according to (1), characterized in that the lever mechanism (14) is provided with a locking element (29) and the armature (3) with a return spring (30), the other end of which is fixed to the carcass (1).