BG41652A3 - Hydraulic system for pulsating press - Google Patents

Hydraulic system for pulsating press

Info

Publication number
BG41652A3
BG41652A3 BG049663A BG4966380A BG41652A3 BG 41652 A3 BG41652 A3 BG 41652A3 BG 049663 A BG049663 A BG 049663A BG 4966380 A BG4966380 A BG 4966380A BG 41652 A3 BG41652 A3 BG 41652A3
Authority
BG
Bulgaria
Prior art keywords
stage
space
pulsating
housing
supply circuit
Prior art date
Application number
BG049663A
Other languages
Bulgarian (bg)
Inventor
Zbigniew Polanski
Ryszard Moszumanski
Original Assignee
Politechnika Krakowska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Krakowska filed Critical Politechnika Krakowska
Publication of BG41652A3 publication Critical patent/BG41652A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Хидравлична система на пулсираща преса, включваща работен цилиндър, генератор на пулсации и захранващ агрегат с резервоар, притежаващ две независими захранващи вериги, състояща се от помпа, обратен клапан на изхода на помпата, акумулатор и предпазен клапан, като от една страна, работният цилиндър е свързан с първата захранваща верига посредством трипозиционен разпределител, а от друга страна, е свързан с втората захранваща верига посредством генератор на пулсации и двупозиционен разпределител, характеризираща се с това, че работният цилиндър притежава корпус и двустепенно бутало, състоящо се от работен прът, първа степен и втора степен с по-голям диаметър, като работният прът е разположен откъм обработваемия детайл, първата степен е разположена откъм генератора на пулсации, а втората степен е разположена между работния прът и първата степен, при което между корпуса, работния прът и втората степен е образувано връщащо пространство, между корпуса, първата степен и втората степен е образувано притискащо пространство и между корпуса и първата степен е образувано пулсиращо пространство, като от една страна, връщащото и притискащото пространство са свързани с първата захранваща верига посредством трипозиционния разпределител, а само към връщащото пространство е свързан преливен клапан, освен това пулсиращото пространство е свързано с втората захранваща верига посредством двупозиционния разпределител и генератор на пулсации, който е с въртящо изпълнение, а пулсиращото пространство е свързано с резервоара посредством втори двупозиционен разпределител. Патентните претенции са формулирани в 2 точки.A hydraulic system of a pulsating press, including a working cylinder, a pulsation generator and a feed unit with a tank having two independent supply circuits, consisting of a pump, a check valve at the pump outlet, an accumulator and a safety valve, on the one hand, the working cylinder is connected to the first supply circuit by means of a three-position distributor and, on the other hand, is connected to the second supply circuit by means of a pulsation generator and a two-position distributor, characterized in that the working cylinder has a housing and a two-stage piston consisting of an operating rod, first stage and a second stage of larger diameter, wherein the work rod is located on the workpiece side, the first stage is located on the pulsation generator side, and the second stage is located between the work rod and the first stage, wherein between the housing, the work rod and the second stage is a return space is formed, a pressure space is formed between the housing, the first stage and the second stage, and a pulsating space is formed between the housing and the first stage, and on the one hand, the return and pressure space are connected to the first supply circuit by means of the three-position distributor, and only to the return space an overflow valve is connected, furthermore, the pulsating space is connected to the second supply circuit by means of the two-position distributor and pulsation generator, which is of rotary design, and the pulsating space is connected to the tank by means of a second two-position distributor. The patent claims are formulated in 2 points.

BG049663A 1979-11-15 1980-11-14 Hydraulic system for pulsating press BG41652A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL21967279A PL126538B1 (en) 1979-11-15 1979-11-15 Pulsatory press hydraulic supply system

Publications (1)

Publication Number Publication Date
BG41652A3 true BG41652A3 (en) 1987-07-15

Family

ID=19999458

Family Applications (1)

Application Number Title Priority Date Filing Date
BG049663A BG41652A3 (en) 1979-11-15 1980-11-14 Hydraulic system for pulsating press

Country Status (8)

Country Link
EP (1) EP0029223B1 (en)
BG (1) BG41652A3 (en)
DD (1) DD154345A5 (en)
DE (1) DE3065716D1 (en)
HU (1) HU182236B (en)
PL (1) PL126538B1 (en)
RO (1) RO81558B (en)
SU (1) SU1050583A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205740C2 (en) * 1982-02-18 1986-02-20 Max Refflinghaus Maschinen- u. Werkzeugfabrik GmbH & Co KG, 5657 Haan Wire bending machine
EP0103727A1 (en) * 1982-09-02 1984-03-28 Inventio Ag Synchronization control apparatus for the electro-hydraulic drive of a press brake
DE3419689C2 (en) * 1984-05-25 1986-11-27 Mannesmann Rexroth GmbH, 8770 Lohr Device for supplying pressure medium to a hydraulic cylinder
CN103286251A (en) * 2013-05-17 2013-09-11 天津市天锻压力机有限公司 Oil supply system of hydraulic forging press
CN104353770B (en) * 2014-10-23 2016-03-23 湖南明诚机械制造有限公司 Hydraulic hammer stake machine high frequency is hammered stake hydraulic system into shape and is beaten hammer inserted valve
CN106996071B (en) * 2017-03-20 2019-06-11 温州大学 A kind of gas-liquid mixed excitation system of cement pavement rubblizing apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2335412A1 (en) * 1973-07-12 1975-02-06 Exnii Kusnetschno Pressowowo M Hydraulic press with pulsating drive - high pressure feed line and outlet line connected to pulsator
DE2345527A1 (en) * 1973-09-10 1975-03-20 Schirmer & Plate HORIZONTAL HIGH SPEED FORGING PRESS

Also Published As

Publication number Publication date
DE3065716D1 (en) 1983-12-29
SU1050583A3 (en) 1983-10-23
DD154345A5 (en) 1982-03-17
HU182236B (en) 1983-12-28
EP0029223A3 (en) 1981-10-28
EP0029223B1 (en) 1983-11-23
RO81558B (en) 1983-04-30
EP0029223A2 (en) 1981-05-27
PL219672A1 (en) 1981-06-19
PL126538B1 (en) 1983-08-31
RO81558A (en) 1983-04-29

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