SU1620160A1 - Hydraulic vibration exciter - Google Patents

Abstract

The invention relates to vibration technology and can be used as vibrotransport devices in the metallurgical, mining and other industries. The purpose of the invention is to increase the efficiency of the hydraulic vibration exciter. Using pump 9, the working fluid through the hydroaccumulator (HA) 7. located at the end of the cavity of the hydraulic cylinder (PG) 2, is fed into the cavity of the hydraulic cylinder (PG) 3 with the plunger P 5 connected to the PG 2 by the lock of attachment of the load-carrying body 6. Under the action pressure P 5, moving towards PG 2, moves P 4, which in turn, compressing the working fluid in PG 2, creates a pressure acting on the edge of the thin-walled cylinder 18 with the radial holes 19, located in PG 2 and grasping on internal diameter P 4, th, in turn rejected, opens the access of the working fluid from GA 7 to PG 2 Due to the larger diameter P 4, the fastening lock of the load-carrying body 6 together with P 4 and 5 moves in the opposite direction until it drains through the radial holes 19 thin-walled cylinder 18 to tank. Then the cycle repeats. Improving the efficiency of the hydraulic vibration exciter is achieved by reducing the number of elements in the control system with the spool valve of a thin-walled cylinder, which is spring-loaded to the interacting part with an end face. 1 il. “

Description

UNION OF SOVIET

SOCIALIST

REPUBLIC ,, „SU <„, 1620160 A1 (505 V 06 V_1_ / 18

STATE COMMITTEE

BY INVENTIONS AND DISCOVERIES

AT SCST USSR

DESCRIPTION OF THE INVENTION

TO AUTHOR CERTIFICATE (21) 4475703/29 (22) 08.19.88 (46) 01.15.91. Bull, No. 2.

(71) Plant-VTUZ at the Karaganda Metallurgical Plant (72) V.F. Atamanov and N.V. Olshtynsky (53) 626.868 (088.8) (56) USSR Copyright Certificate N51466807, cl. 06/18, 1986.

(54) HYDRAULIC VIBRATOR (57) The invention relates to vibration technology and can be used as vibro-conveying devices in the metallurgical, mining and other industries. The purpose of the invention is to increase the efficiency of the hydraulic vibration exciter. Using pump 9, the working fluid through the hydraulic accumulator (GA) 7. located at the end of the hydraulic cylinder cavity (ΓΊΓ) 2. is fed into the hydraulic cylinder cavity (PG) 3 with the P 5 plunger connected to the PG 2 lock of the load-bearing organ attachment 6. Under the action pressure П 5, moving towards the PG 2, moves P 4, which, in turn, compressing the working fluid in the PG 2, creates a pressure acting on the edge of the end-pressed thin-walled cylinder 18 with radial holes 19 located in the PG 2 and embracing in inner diameter P 4. which, in turn, discarding, it opens the access of working fluid from GA 7 to SG 2. Due to the larger diameter P 4, the lock of the load-bearing body 6, together with P 4 and 5, moves in the opposite direction until the thin-walled cylinder 18 is drained through the radial holes 19 into the tank. Then the cycle repeats. An increase in the operating efficiency of the hydraulic vibration exciter is achieved by reducing the number of elements in the control system [ΚΖ ’the control system with the slide valve L · distributor of a thin-walled cylinder, g *“ spring-loaded with an end face to the interacting ζ part. 1 ill.

2 from the hydraulic accumulator 7. Since the diameter of the plunger 4 is larger than the plunger 5, the last one, together with the load-carrying member 6, is braked to a stop and starts to move in the opposite direction. Under the action of the plunger 5, the working fluid from the cavity of the hydraulic cylinder 3 through the pipeline 10, through the check valve 14, is displaced into the hydraulic accumulator 7. Moving, the plunger 10 ger 4 opens a radial hole 19 connecting the cavity of the hydraulic cylinder 2 with the pipe 11 and further with the tank 16. The pressure in the cavity the hydraulic cylinder 2 falls, and under the action of the spring 17, the thin-walled 15 cylinder 18 returns to its original position. Under the action of pressure in the cavity of the hydraulic cylinder 3 on the plunger 5, the latter is inhibited until it stops, and the cycle repeats.

Claims (1)

20 Formula of the invention A hydraulic vibration exciter comprising a housing with two plunger mounted in it towards each other. hydraulic cylinders of various diameters. 25 interconnected lock fastening of the load-carrying body, hydraulic accumulator located in. the end of the cylinder with a plunger of a larger diameter and separated from its cavity by a partition. 30 and a control system with a spool distributor installed in the communication line of the battery cavity with the cylinder cavity of a larger diameter, which is also important. that, in order to increase 35 operating efficiency, the spool valve is made in the form of a movable thin-walled cylinder with radial holes in its central part and a seat made in the form of an annular protrusion on a 40 partition equipped with axial holes, while a larger diameter plunger is placed in the cavity of a thin-walled cylinder , one end of which is spring loaded, and the other is installed with the possibility of interaction with the saddle. The invention relates to vibration technology and can be used as vibro-conveying devices in the metallurgical, mining and other industries. 5 The purpose of the invention is to increase the efficiency of the hydraulic vibration exciter. The drawing shows a hydraulic, vibration exciter. 10 The hydraulic exciter contains a housing 1 with plunger hydraulic cylinders 2 and 3 installed in it and facing each other with plungers 4 and 5 of various diameters, interconnected 15 by a lock for securing the load-bearing member 6, a hydraulic accumulator 7 with a partition 8, a control system with a spool valve, an electric drive with pump 9 and. pipelines 10 and 11 with pressure valves 20 and 13 and check valves 14 and 15 and tank 16 with working fluid. The control system with spool valve consists of a spring-loaded spring 17 of a thin-walled cylinder 18 with radial 25 holes 19 in its central part and seat 2Q. made in the form of an annular protrusion on the partition 8.. The operation of the hydraulic vibration exciter begins with the start of the electric motor 30 of the pump 9, while the working fluid is pumped into the hydraulic accumulator 7. When the specified pressure in it is reached, the fluid is pumped through the pressure valve 12 into the cavity of the hydraulic cylinder 3. The plunger 5 with a smaller diameter is accelerated by the arising force plunger 4, connected with it with the help of a lock of a carrying body b After closing the radial holes 19 with a thin-walled cylinder 40 18 there is a compression of the working fluid in the cavity of the hydraulic cylinder 2. The pressure of the fluid on the end of the thin-walled cylinder 18 is discarded, allowing access of the working fluid into the cavity of the hydraulic cylinder