SU1611536A1 - Electric hydraulic hammer - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to the construction of forging equipment. The purpose of the invention is to increase efficiency. The electrohydraulic hammer contains an electric discharge chamber coaxial with it and an additional hydraulic cylinder mounted on the working cylinder, in which double acting hydro turbine and an electric generator electrically connected to the terminals of the current pulse generator are mounted. The electrodes of the latter are placed in an electric discharge chamber. The axial channels in these electrodes are connected to the nodes of the fuel mixture when the rolling element interacts with the lower piston. During the initial forced lift of the lower piston to the koush on the upper piston, the liquid in the hydraulic cylinder spins the turbine and the electric generator powers the current pulse generator. After releasing the cushion, the lower piston flies down, where at the moment of injection of the fuel mixture into the electric discharge chamber an electric discharge is performed. The accompanying thermoelectro-hydraulic process causes the hammer's working stroke and repeated movement of the lower piston upwards with a new charge of the current pulse generator, which ensures recycling unused energy released. 11 il.

Description

FIELD OF THE INVENTION

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“„ NPO 13 with stem And, passed through axial through hole in the transducer 15 mechanical energy into electrical energy fixed in the middle part of the rifle 3. At both ends of the stem 4 V there are lower 16 and upper 7 pshshni In the lower part of the cylinder b there are inlet 18 and exhaust 19 windows as well as units for supplying fuel and oxidizer to the discharge section 5. The fuel delivery pellet has a fdnfi interacting with the axis 16, a movable element 20 with a yopir working surface. with a separate pusher 21 with a plunger 22, which is pressed by the spring 23 relative to b; nvca 4. In the fifth position, burn. Kla-Van 25 with an adjusting needle 26 and a channel and one with an axial-shaft 2.

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Basics to acceptable limits. The current generator 1 „consists of a high-voltage power source — a rectifier 34, a capacitor of 35 capacitance and high-voltage interlocks 36 a converter 15 of the mechanical energy-4 roy t ::; y ;; e about T and e |

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HoS-iiHO alosti 41 rotation of the blade A9 - .. 44 otor 45 and guiding app. Stages 46 and 47. The rotor 45 of the turbine 38 Stopped in the bearing “43. LOTORS 49 electric generators 40 .in..a km g rotor 45 hydrotroins. H the hub 50, all the legs. 4. Output: High power generator terminals 40 power cables are connected to the input 51 of the generator 10. current pulses. The hydraulic cylinder:, cylinder 13, provides for chichitsech 52 and 53 mixed:;: and piston ib. Mobile cts-p 54 i ejectors 55 are embedded in the hammer head. For the initial start of the hammer, the thimble b is used, and it is empty on the upper piston i /

The working bodies and agents of the electrohydrodynamic hammer are: working in a electric discharge chamber; 4; current; a liquid in the overporia of e- / 1 of posture 39, for example, a low viscosity, and agnGmaslo; current current,

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woman; the bottom part is “nstrum and ustshkgpen on the workplace, and the workpiece is heated to the forging temperature.

The initial launch of the hammer is carried out by quickly pushing the piston and GB at an ear 56. The fuel supply through pipeline 29 is simultaneously turned on. In the piston cavity 39, the upward moving liquid column spins the DOTOD 45 of the hydro turbine 38, the electric generator 40 grabs. ° High voltage rectifier 34 charges accumulative capacitance 25 gen- 10 current pulses. The piston 16 and the hydraulic column store the potential ™ pf u Padporshnevaya cavity through the inlet 15 and the windows 18 are filled with fresh air. Then the coupling 56 WW is released and the piston. -.b vmes

e with a column of liquid US-R; 7 with an alba to rmt Potential energy transferred by the piston 1o and with the liquid liquid liquid passes over 20 Akinetic energy. The inlet 18 and outlet windows 19 overlap the nors n r 6 and thus the piston air; ,: sT E- SpJrrTrp / s;

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; ° ;; of the external closure 11 interchange, .х о with pooshchrm 16, cumulative er /. Кос.ь Z 0 is fast :; Sponsored - -W, th Electro. Mu-hive is served by iia evil lrsd ...; 9;;: they develop rast.tsi stri-:;. and form a cavitation. sh .. x.o ... to which the time of the moving reciprocating .5 imad with the piston 16, through the lk- overcoming resistance, ki- and 9 will mix the plunger 22. m.: valve 15 opens and. fuels ..

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the tapion cavity, i ... l,., the boreholes of the cylinder 13, the steam and the combustion gases expand, their internal energy is transformed into mechanical work, and the piston 16, together with the liquid column, rushes upward to the mt . The piston 16 opens the exhaust ports 19 and the gases are released through the nozzle 32 and the filter-silencing 33. With the piston 15 moving upward, the piston chamber of the cylinder 14 is again filled with fresh atmospheric air. A two-sided hydroturbine 38 continues to rotate the electric generators 40, charging the storage capacitance 25 of the current pulse generator 10. The process is repeated in the sequence described above until the workpiece is manufactured. At the same time, the impact force can be regulated by varying the voltage of the electric generators 40. At idle, the fuel supply is minimal and the return cylinders 3 keep the woman in the upper position. The operation of the hammer is stopped by shutting off the fuel supply.

The dynamics of development of the combined thermoelectrohydraulic process are as follows, a. As a result of the electrical discharge, a growing streamer (Fig. 7) is formed, a cavitation cavity is formed (Fig. 8), into which the atomized fuel and compressed hot air is supplied, the cavitation cavity increases (Fig. 9), reaches the surface of the working fluid 6 and is connected With the podporshnevoy cavity of the cylinder 13 (Fig. 10), the resulting vapor of working fluid 6 and the gaseous products of the combustion of fuel expands in the podporshnevoy cavity of the cylinder 13 (Fig.), and the cavitation cavity collapses.

In the proposed hammer, a combined thermoelectrohydraulic cycle consisting of a thermodynamic cycle abcda with internal heat supply, 1plot and a steam force -1 B- / I- is created, which create the conditions for the implementation of an electro-hydraulic cycle ik-lm- (. in turn, the electro-hydraulic cycle ik-1-mi creates the prerequisites for the implementation of the thermodynamic cycle a-b c-d-a with internal heat supply and steam-power cycle efghe.

The thermodynamic cycle u-b - c-d-a with an internal heat supply consists of the terrocess ab and b compression of atmospheric air 3 under the piston cavity during the movement of the piston 6 from the rm. to N.M.T., process b – c iso-barnous supply of heat of combustion of fuel and waste heat of electro-hydraulic cycle ik - l-t-i when piston 16 is located near N.M.T., process c-d of expansion of gaseous products fuel combustion in the piston cavity during the movement of the piston 16 from N. m.t. to v.m.t. and

d-a process of the isobaric heat removal by exhaust gases when the piston 16 is located near the high-voltage line. The result of the thermodynamic cycle ab-c-d-a with internal heat supply is the production of mechanical work / 2 and waste heat (Fig. 6).

The steam cycle e - / - g-h-e consists of the c-f process of compressing the working fluid 6 by a shock wave, the f-d process; heating fluid 6, isothermal evaporation and superheating of steam, the g-h process of steam expansion in the piston chamber of the cylinder 13 and during the movement of the piston 16 from mr.t. to v.m.t. and the process of h isothermal condensation. The result of the steam cycle e-1-g - h c is the production of mechanical work / l, and waste heat. Mechanical work / / 2 + / l. the combined thermodynamic cycle causes the implementation of the electro-hydraulic cycle / -k - l - t-i, consisting of an adiabatic compression process, an isothermal process k- / heat supply, an adiabatic process / -t expansion and an isothermal process w- / heat removal. The result of electro-hydraulic

 cycle i-k-i-m-i is the production of mechanical work / j and waste heat utilized in a combined thermodynamic cycle. The work / e of the i-k l-m-i electro-hydraulic cycle is used to make parts.

The economic effect is ensured by increasing efficiency.

Claims (1)

 Invention Formula 35 .. An electrohydraulic hammer containing a working hydraulic cylinder mounted on a frame with a piston of a woman and an electric discharge hydraulic chamber connected to the piston cavity of this cylinder, the contacts of the discharge element of which are connected to a current pulse generator that differs in efficiency. due to the utilization of unused energy, it is equipped with a feed unit to the bottom of the electrosurm of the hydraulic chamber of the fuel mixture, a rod with pistons at its ends, an additional hydraulic cylinder and In the latter, a double-action hydroturbine interlocked in the same housing and a concentration {electric motor generator located relatively to it, the axial passage through the turbine is made in the turbine, in which the rod with porgins on the ends is placed, the longitudinal hydraulic cylinder It is installed in line with the electrically arrester of the gilranlna chamber and connected to it, and the electric generator is electrically connected to the generator of pulses of electric current. Fy J4x 2 21 25 ag 4 47 44 4 / // aC 47 phage.Z . FIG. 7 Fi.g.9 FIG. YU FIG. eight FIG. eleven