CS250033B1

CS250033B1 - Working liquid's distribution system for break-down hydraulic hammer

Info

Publication number: CS250033B1
Application number: CS792485A
Authority: CS
Inventors: Jozef Dasko
Original assignee: Jozef Dasko
Priority date: 1985-11-05
Filing date: 1985-11-05
Publication date: 1987-04-16

Description

Vynález rieši rozvod pracovně] kvapaliny rozrušovacieho hydraulického kladiva, určeného pre rozrušovacie práce, v spojení s hydraulickým pracovným strojom, pričom pre svoju činnost využívá zdroj pracovnej kvapaliny tohoto stroja.The invention solves the distribution of the working fluid of a breaker hydraulic hammer intended for breaking up in connection with a hydraulic working machine, using a working fluid source of the machine for its operation.

Známa je rozrušovacle hydraulické kladivo, v ktorého telese je pracovný válec jedného priemeru a v ktorom je posuvné uložený piest a posúvač. Piest je opatřený diferenciálnou tlačnou plochou, nákružkem a svojim čelom zasahuje do dusíkovej komory. Posúvač má tvar prstenca a je ohraničený dvoma celami, ktorými striedavo spojuje a rozpojuje pracovnu komoru piesta s prívodným a olvodným kaná-lom.Known is an excitable hydraulic hammer in which the body has a working cylinder of one diameter and in which the piston and the slider are slidably mounted. The piston is provided with a differential pressure surface, a collar and protrudes into the nitrogen chamber. The slider has the shape of a ring and is bounded by two cells by which it alternately connects and disconnects the working chamber of the piston with the supply and solute channels.

Nevýhodou tohoto prevedenia je, že jposúvač pri nižších frekvenciách nezaručuje dostatočné prekrytie prívodného a odvodného kanála, čo má za příčinu zvýšenie objemových strát a posúvač v krajných polohách može byť nestabilný. Pri náraze piesta na posúvač vznikajú značné rázy.The disadvantage of this embodiment is that the slider at lower frequencies does not guarantee sufficient overlap of the inlet and outlet ducts, which results in an increase in volume losses and the slider in extreme positions may be unstable. The impact of the piston on the slider causes considerable shocks.

Uvedené nedostatky odstraňuje rozvod pracovnej kvapaliny rozrušovacieho hydraulického kladiva vytvořeného z teiesa, v ktorom je posuvné uložený pracovný nástroj a vytvořený pracovný válec jedného priemeru, v ktorom je posuvné uložený piest opatřený nákružkom a zasahujúci svo2 jim čelom do dusíkovej komory vytvorenej v telese a eentricky s piestom je v pracovnom válci uložený tiež posúvač v tvare prstenca podlá vynálezu, ktorého podstata spočívá v tom, že posúvač prvou válcovou plochou zasahuje do prvej komory piesta, ktorá je cez třetí spojovací kanál spojená s druhou komorou piesta napojenou v hornej polohe piesta na prívodný kanál a v dolnej polohe piesta na odvodný kanál, pričom v dolnej polohe piesta je medzi prvou tlačnou diferenciálnou plochou piesta, prvou válcovou plochou piesta, prvým čelom posůvača a prvou válcovou plochou vytvořená tlmiaca komora a v hornej polohe piesta je medzi treťou diferenciálnou plochou piesta, druhým čelom posůvača a treťou válcovou plochou piesta vytvořená tlmiaca komora a medzi druhou diferenciálnou plochou piesta, třetím čelom posůvača, treťou válcovou plochou posůvača a druhou válcovou plochou piesta je vytvořená komora napojená na prvý spojovací kanál, ktorý je v hornej polohe piesta napojený na druhý spojovací kanál, ktorý je napojený na prívodný kanál.These drawbacks are eliminated by distributing the working fluid of the breaker hydraulic hammer formed from the body in which the working tool is slidably mounted and the working cylinder of one diameter is formed in which the slidingly mounted piston is provided with a collar and extends into the nitrogen chamber formed in the body and eentrically with the piston. a slider in the form of a ring according to the invention is also provided in the working cylinder, the slider extending through a first cylindrical surface into a first piston chamber which is connected via a third connecting channel to a second piston chamber connected in the upper position of the piston to the supply channel; a lower position of the piston on the discharge channel, wherein a damping chamber is formed between the first pressure differential surface of the piston, the first cylindrical surface of the piston, the first face of the slider and the first cylindrical surface in the lower position of the piston; the piston, the second slider face and the third cylindrical surface of the piston formed by the damping chamber and between the second differential face of the piston, the third slider face, the third cylindrical surface of the slider and the second cylindrical surface of the piston is formed by a chamber connected to the first connecting channel connected to the piston a second connection channel which is connected to the supply channel.

Výhodou rozvodu pracovnej kvapaliny rozrušovacieho hydraulického kladiva podl’a vynálezu je, že posúvač zaručuje dostatočné prekrytie prívodného a odvodného kanála aj pri nižších frekvenciách. V dQ250033 sledku tejto skutočnosti sá znižujú objemové straty, zvyšuje sa objemová účinnost a taktiež je zamedzený vznik rázov pri náraze piesta na posúvač.The advantage of distributing the working fluid of the breaker hydraulic hammer according to the invention is that the slider guarantees sufficient coverage of the supply and exhaust ducts even at lower frequencies. As a result, the dQ250033 reduces the volume loss, increases the volume efficiency and also prevents the impact of the piston against the slider.

Na pripojenom výkrese je znázorněný příklad prevedenia rozvodu pracovnej kvapaliny rozrušovacieho hydraulického kladiva ip-odla vynálezu, kde na nobr. 1 je rozvod pracovnej kvapaliny rozrušovacieho hydraulického kladiva v pozdlžnom řeze.The accompanying drawing shows an example of an embodiment of the working fluid distribution of the breaker hydraulic hammer ip of the invention, where it is shown in FIG. 1 is a longitudinal section of the breaker hydraulic breaker working fluid.

Rozrušovacie hydraulické kladivo je vytvořené z telesa 1, v ktorom je posuvné uložený pťacovný nástroj 27 a vytvořený pracovný válec jedného priemeru, v ktorom je posuvné uložený piest 13 opatřený nákružkom 24 zasahujúci do dusíkovej komory 14 vytvorenej v telese 1. Centricky s piestom 13 je v pracovnom válci uložený tiež posúvač 2 v tvare prstenca.The breaker hydraulic hammer is formed from a body 1, in which a piston tool 27 is slidably mounted and a working cylinder of one diameter is formed, in which the slidingly mounted piston 13 is provided with a collar 24 extending into the nitrogen chamber 14 formed in the body 1. a ring-shaped slider 2 is also mounted on the work cylinder.

Posúvač 2 prvou válcovou plochou 4 zasahuje do prvej komory 10 piesta 13, .ktorá je cez třetí spojovací kanál 22 spojená s druhou komorou 25 piesta 13 napojenou v hornej polohe piesta 13 na prívodný kanál 11 a v dolnej polohe piesta 13 na odvodný kanál 12. V dolnej polohe piesta 13 je medzi prvou tlačnou diferenciálnou plochou 15 piesta 13, prvou válcovou plochou 16 piesta 13, prvým čelom 3 posúvača 2 a prvou válcovou plochou 4 posúvača 2 vytvořená tlmiaca komora.The slider 2 extends through the first cylindrical surface 4 into the first chamber 10 of the piston 13, which is connected via a third connecting channel 22 to the second chamber 25 of the piston 13 connected in the upper position of the piston 13 to the inlet channel 11 and lower. In the lower position of the piston 13, a damping chamber is formed between the first pressure differential surface 15 of the piston 13, the first cylindrical surface 16 of the piston 13, the first face 3 of the slider 2 and the first cylindrical surface 4 of the slider 2.

V hornej polohe piesta 13 je medzi trefou diferenciálnou plochou 23 piesta 13, druhým čelom 26 posúvača 2 a trefou válcovou plochou 19 piesta 13 vytvořená tlmiac'a kotnora a medzi druhou diferenciálnou plochou 17 piesta 13, třetím čelom 5 posúvača 2, itreťou válcovou plochou 7 posúvača 2 a a druhou válcovou plochou 18 piesta 13 je vytvořená komora napojená na íprvý spojovací kanál 20, ktorý je v hornej polohe piesta 13 napojený na druhý spojovací kanál 21, ktorý je napojený na prívodný kanál 11.In the upper position of the piston 13, a damping chamber is formed between the striking differential surface 23 of the piston 13, the second face 26 of the slider 2 and the striking cylindrical surface 19 of the piston 13 and between the second differential face 17 of the piston 13, the third face 5 of the slider 2. and a second cylindrical surface 18 of the piston 13 is formed by a chamber connected to a first connecting channel 20, which in the upper position of the piston 13 is connected to a second connecting channel 21, which is connected to the supply channel 11.

Tlaková kvapalina prúdi privodným kanáloan 11 do komory 10 a spojovacím kanálom 22 do komory 25, vysúva piest 13 smerom hoře a súčasne stlačuje plyn v dusíkovej komoře 14. Piest 13 pri pohybe smerom hoře .před hornou polohou piesta 13 sa druhou diferenciálnou plochou 17, trefou diferenciálnou plochou 23, druhou válcovou plochou 18 a trefou válcovou plochou 19 nasunie do posúvača 2, čím sa vytvárajú medzi týmito plochami a posúvačom 2 dve tlmiace komory a posúvač 2 je vysúvaný spolu s piestom 13 smerom hoře, až prvou hranou 8 uzatvorí prívodný kanál 11.The pressurized fluid flows through the inlet channel 11 into the chamber 10 and through the communication channel 22 into the chamber 25, ejecting the piston 13 upwards while simultaneously compressing the gas in the nitrogen chamber 14. The piston 13 is moved upwardly upstream of the piston 13. by means of the differential surface 23, the second cylindrical surface 18 and the third cylindrical surface 19, sliding into the slider 2, thereby forming two damping chambers between these surfaces and the slider 2, and the slider 2 is pushed together with the piston 13 upwards until the first edge 8 closes the feed channel 11 .

V hornej polohe piesta 13 sa do priestoru tlmiacej komor y k druhej diferenciálnej ploché 17 prostrednictvom prvého spojovacieho kanála 20 a druhého spojovacieho kanála 21 dostane tlaková kvapalina, ktorá posúvač 2 vysunie tak, že uzavrie prívodný kanál 11 a otvori odvodný kanál 12. Stlačený plyn zrychluje piest 13 smerom dolu proti pracovnému nástrojů 27 a kvapalina je vytlačovaná z druhej komory 25 cez spojovací kanál 22 do prvej komory 10 a odtiaí do odvodného kanála 12.In the upper position of the piston 13, pressurized fluid enters the damping chamber space of the second differential flat 17 via the first connecting channel 20 and the second connecting channel 21, which slides the slide 2 to close the inlet channel 11 and open the outlet channel 12. The gas accelerates the piston 13 downstream of the working tool 27 and the liquid is forced out of the second chamber 25 via the connecting channel 22 into the first chamber 10 and thence to the drain channel 12.

Před spodnou polohou piesta 13 sa piest 13 prvou válcovou plochou 16 nasunie do (posúvača 2 a unáša ho smerom dolu tak, že 'uzavrie odvodný kanál 12. Medzi prvou (tlačnou diferenciálnou plochou 15 a prvou (válcovou plochou 16 a prvým čelom 3 a prvou válcovou plochou 4 sa vytvoří tlmiaca komora, ktorá bráni rázu medzi piestom 13 ía posúvačom 2. Piest 13 súčasne naráža na pracovný nástroj 27.Prior to the lower position of the piston 13, the piston 13 is pushed by the first cylindrical surface 16 into (the slider 2 and carried downwards by closing the outlet duct 12. Between the first (pressure differential surface 15 and the first (cylindrical surface 16 and first face 3 and first a cylindrical surface 4 forms a damping chamber which prevents the impact between the piston 13 and the slide 2. The piston 13 simultaneously impinges on the working tool 27.

Tlaková kvapalina z prívodného kanála 11 sa dostane medzi prvú tlačnú diferenciálnu plochu 15 a prvé čelo 3 posúvača 2 a oddělí ich od seba. Posúvač 2 uzavrie odvodný kanál 12 a otvori prívodný kanál 11. Tým sa pracovná kvapalina dostane do prvej komory 10 a celý cyklus sa začína znova.The pressurized fluid from the inlet duct 11 reaches between the first pressure differential surface 15 and the first face 3 of the slide 2 and separates them from one another. The slider 2 closes the discharge channel 12 and opens the supply channel 11. As a result, the working fluid enters the first chamber 10 and the whole cycle starts again.

Claims

As a result of this, they reduce the volume loss, increase the volumetric efficiency and also prevent the impact of impact on the slide. In the accompanying drawing, an example of an embodiment of a working fluid distribution system of a breaking hydraulic hammer of the invention is shown, where n is. 1 is a distribution fluid of a breaker hydraulic hammer in a longitudinal section. The erosion hydraulic hammer is formed from a body 1 in which a grinding tool 27 is disposed and a working cylinder of one diameter is formed, in which the sliding piston 13 is provided with a collar 24 extending into the nitrogen chamber 14 formed in the body 1. An annular shifter 2 is also located centrally in the working cylinder. The slider 2 comprises a first cylindrical surface 4 in the first chamber 10 of the piston 13, which is connected via a third connecting channel 22 connected by a second chamber 25 of the piston 13 to the uppermost position of the piston 13 on the supply channel 11 and in the lower position of the piston 13 on the outlet channel 12. In the lower position of the piston 13, a damping chamber is formed between the first pressure differential surface 15 of the piston 13, the first cylindrical surface 16piesta 13, the first slider face 3 and the first cylindrical surface 4 of the slide 2. In the uppermost position of the piston 13, a damper is formed between the piston 13, the second slider face 26 and the piston thrust 19, and a cylindrical surface 17 between the piston 13 and the piston 13. 7, the chamber 2 is connected to the first connecting channel 20, which is connected to the second connecting channel 21, which is connected to the supply channel 11, in the upper part 13. The pressurized fluid flows through the inlet conduit 11 into chamber 10 and connecting conduit 22 into chamber 25, extending piston 13 in the same direction while simultaneously compressing the gas in the nitrogen chamber 14. Piston 13 while moving the mount in front of the uppermost position the piston 13 with the circular differential surface 17, the treble diffuser surface 23, the second cylindrical surface 18 and the third cylindrical surface 19 will slide into the slide 2, thereby forming a damping chamber between these surfaces and the slide 2, and the slide 2 is sucked together with the piston 13 upwardly until it closes the feed channel 8 11. In the uppermost position of the piston 13, pressurized fluid is supplied to the chamber 20 of the second differential flat 17 via the first coupling channel 20 and the second coupling channel 21, which moves the slide 2 to close the supply channel 11 and opens the drain channel 12. The compressed gas accelerates a plunger 13 downstream of the working tool 27 and displacing the liquid from the tool 27; the second chamber 25 through the connecting channel 22 to the first chamber 10 and expose to the discharge channel 12. Before the lower position of the piston 13, the piston 13 is slid into the first slider 16 into the slider 2 and carries it downwards such that it closes the drain channel 12 Between the first [pressure differential surface 15 and the first (cylindrical surface 16 and the first face 3 and the first cylindrical surface 4, a damping chamber is formed which prevents the impact between the piston 13 and the slide)

2. The plunger 13 simultaneously hits the working tool 27. The pressurized fluid from the inlet channel 11is passes between the first pressure differential surface 15 and the first face 3 of the slide 2 and separates from each other. The slider 2 closes the discharge conduit 12 and opens the inlet conduit 11. Thus, the prime liquid enters the first chamber 10 and the entire cycle begins again. OBJECTIVE A fluid distribution of a hydraulic breaker formed from a thermocouple in which a working tool is displaceable and a working cylinder of a single diameter is formed in which the slide is fitted with a collar and extending in the nitrogen chamber formed in the body and centered on Also provided by the piston is a bar-shaped slide in the working cylinder, characterized in that the slide (2) engages the first chamber (10) of the first cylindrical surface [4], which is connected via a third connecting channel (22) with the second chamber (25) of the piston (13) connected in the uppermost position of the piston (13) to the supply kainal (11) and in the lower position of the piston (13) to the drainage channel (12); between the first differential pressure differential with the longitudinal surface (15) of the piston (13), the first cylindrical surface (16) of the piston (13), the first slide (3) of the slide (2) and the first cylindrical surface (4) formed damping chamber and in the upper position the piston (13) forming a damping chamber and a damping chamber (13) between the third differential surface (23) of the piston (13), the second slide face (26) of the piston (2) and the piston surface (19) of the piston (13) (17) the piston (13), the third face (5) of the slide (2), the third roller face (7) of the slide (2) and the second roller face (18) of the piston (13) are formed by a chamber connected to the first connecting channel (20) which is in the upper position of the piston (13) connected to the second connecting channel (21), which is connected to the supply channel (11). 1 sheet of drawings