SU511181A1 - Drive feed, for example, metalworking machine - Google Patents

Description

one

The invention relates to a machine tool industry and can be used as drives for supplying hydrofitted metal-working machines.

Known are the Hraz / Guy drive of metal-working machine tools containing a hydraulic cylinder, an adjustable piston metering device, an unadjustable piston metering device with a brake device and a drainage pressure.

Odne1so known hydraulic feed drives have a low / low capacity for the operation of the plant and the individual start and start.

The aim of the invention is to increase the stiffness of the tracker,

It is at the same time you can do something with it. and che; h variable soltokk. ikde and asnojjaoKbv} ;: 1; ax :: tyu shallows VISCOSITY and 6e-c is lighter; e polostn sa-

filled with a high-viscosity fluid and communicated through a gear unit associated with the main drive and connected to a bridge with non-return valves in the arms, and with a parallel gear pump AoaaTOpomj, which, together with a variable resistance included at the inlet of the hydraulic circuit, ensures pistons power hydrogrchlandra with one-stop braking, regardless of the load and speed of the pistons,

The drawing shows the pivot drive feed circuit.

Power p-Schrod7: Aindr 1 composed

of two SINGLE SHIPPERS OF HYDRO1 and L1- ND, rOB 2 and

Claims (3)

equal sizes, the boundaries of which are connected by o6j: aHM creysophopload 4 and are located on opposite sides of it; Gltokovye cavities 5 to 6 gyDryushg IDROB 2 and -3 communicate with the source and drain through the TejJbHoe distribution device 7. a. Besht-BeBege poste 8 v. 9 SUBSTITUTE THROUGH THE GEARBOXES LOJ BATTERY MODULE AND C.A. The piston cavities 17 and 18 of which are connected to the inlet and outlet of the gear 10 of the dispenser 10, and the rod ends with the source and drain. In addition, the input of the gear metering device 1O communicates with the piston cavity of the stepped jolotnik 19, the piston of which 2O is held by the springs 21 and 22, and the rod 23 is loaded with the pressure of the picker, forming a diagram for comparing the pressures in high and low pressure circuits filled with primary fluid : low pressure circuit containing rodless cavities 8 and 9 and a bridge circuit with a piston 15 and gear 10 metering devices, filled with a high-viscosity fluid high pressure circuit containing a distribution device, rod fields awn 5 and t, the source and runoff, is filled with a small liquid in the ecology. The recess 24 on the stem 23 of the stepped spool 19 and the annular chamber 25 in its housing form a variable resistance, which is included in the high pressure circuit of the high pressure circuit. The dimensions of the piston metering device 15 and the foam-shaped spool 19 are chosen so that the ratio of areas of strips 1 and high pressure and low pressure cavity is equal to the ratio of areas of rod and rod-free cavities of power hydraulic structures 2 and 3. with the main drive. A high speed motor 28 is used in the high pressure circuit of the delivery line, used as a flow sensor loaded with 29 turns, which is controlled by a setting link 27 that starts and stops the feed drive. When the metering device 10 rotates at a constant angular velocity, the pistons of the power ‐ hydraulic cylinder 1 move at a fluctuating speed, and the fluid from the rodless cavity 8 flows into the free flow cavity 9. The use of a double circuit with time resistance and a high viscosity of the fluid in the low contour pressure allows reduction of leakage through gear metering device 10 in comparison with single-circuit design. In steady state, sensor 28 rotates synchronously with metering device 1O in a high pressure circuit. When stopped e dispenser 1 1O cylinder pistons continue to move by inertia until zadolnits mash-up piston 15, and are stopped. The shutdown of the dispenser 10 causes an increase in pressure on the piston of the throttle distribution device 19, which, displacing, intersects the annular chamber 25 to increase the resistance of the high pressure circuit, so that at different speeds of the pistons of the power hydro-cylinder 1, the braking path is unstressed, because The excess energy is shifts at a variable resistance, the magnitude of which is the greater, the greater the greater the pressure. The work of variable resistances is not limited to quenching the customers at stops, transferring the pressure resistance of the dry pressure circuit during load fluctuations and the input pressure and contributes to maintaining the same pressure at the inlet of the piston, which increases the accuracy of the piston of the csaiosoro hydraulic pipe 1. After the rotation. The 10 pistons from the power gkdrodilkdra 1 remain motionless until the porous metering device 15 is emptied. After it, the pistons are emptied / moving accelerated, and the metering unit 10 ntiruets inverse kymi valves shouldered m {x: RTA circuit. In case of equal flow rates, caused by the operation of the dispenser 10 in the pump and the displacement of one rodless cavity from the other, the dispenser goes to the engine, the load on the shaft of which is a worm gear 26j limiting the increase soon; g Hydroy - linders greater than & which is provided with a worm wrench to the gearbox by the setting link. Since the speed of decks in the braking mode decreases arbitrarily, and in the start mode increases arbitrarily, the overshoot kx can be monitored by the flow sensor 28 in the high pressure circuit loaded with the counter 29 rpm, according to the indications of which the flow is controlled, Invention Formula 1, Drive feed, for example, a metal machine, made according to the next hydraulic circuit containing an input link, consisting of switchgear and gear metering with a drive which sets the absolute value of the velocity to the direction of movement of the output link; a rigid-ha follower system, a gear metering drive is self-braking, the output link is completed in the form of two symmetrically located hydraulic cylinders whose rods are connected by a crosshead, esshtokovye power gisch cavity) filled O1schlindrov ZHED & CMP with high viscosity and fluidly coupled through a gear with the dispenser and the piston dosing cavity while driving the latter gear in parallel dispenser and Centrifugal cavity through the throttle. the switchgear is connected to the stock cavities of the power gishzokhshlinders. 2. The actuator according to claim 1, characterized in that the switchgear, through which the gear metering device is connected to the EEGless cavity of a cylinder, of power hydraulic cylinders, is made in the form of a bridge circuit of four check valves, 3. The drive according to claim 1, of which is that the dimensions of the piston meter and the throttle distribution device are chosen so that the ratio of the areas of the large and smaller pistons of these elements is equal to the ratio of the effective areas of the rod to the STICK power cylinder piston.