PL276B1 - The turning point for large pieces to be forged. - Google Patents

The turning point for large pieces to be forged. Download PDF

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Publication number
PL276B1
PL276B1 PL276A PL27620A PL276B1 PL 276 B1 PL276 B1 PL 276B1 PL 276 A PL276 A PL 276A PL 27620 A PL27620 A PL 27620A PL 276 B1 PL276 B1 PL 276B1
Authority
PL
Poland
Prior art keywords
large pieces
turning point
forged
parts
screws
Prior art date
Application number
PL276A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL276B1 publication Critical patent/PL276B1/en

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Description

V Przy znanych dotychczas nawrotni¬ cach dla kucia wielkich sztuk czesc za¬ wieszona, zawierajaca naped, skladala sie zazwyczaj z blach i wiekszej ilosci ksztaltówek,.polaczonych ze soba nitami.Pod wplywem silnych uderzen i wstrza- snien, którym nawrotnice podlegaja pod¬ czas pracy przy mlotach parowych i pra¬ sach kuzniczych, nity rozluzniaja sie bar¬ dzo szybko. Tak zlozone czesci zawie¬ szone wymagaja wobec tego nietylko czestych napraw, ale moga tez dac po¬ wód do nieszczesliwych wypadków.Wynalazek niniejszy usuwa te wady w ten sposób, ze czesc zawieszona skla¬ da sie z mozliwie niewielu, najwyzej z trzech czesci, i ze, o ile sklada sie z wiecej jak jednej czesci, polaczenie uskutecznia sie zapomoca srub, których dlugosc równa sie w przyblizeniu calej grubosci czesci zawieszonej. Mala ilosc czesci daje wielkie powierzchnie styku i pozwala na zastosowanie niewielu sil¬ nych, duzych i dlugich srub laczacych, które nawet przy silnem natezeniu na rozciaganie doznaja znacznie mniejszego wydluzenia jednostkowego, a dzialanie scinajace jest mniejsze, niz przy krótkich nitach, wobec czego sruby te posiadaja wieksza trwalosc niz nity.Czesc zawieszona jest przedstawiona na fig. 1 w widoku zprzodu.Fig. 2 przedstawia przekrój podluzny przez czesc zawieszona, skladajaca sie z jednej sztuki.Czesc zawieszona, przedstawiona na fig. 3 sklada sie z dwóch czesci, a przed¬ stawiona na fig. 4 z trzech.Sciany boczne na fig. 2 odlane sa ra¬ zem z mostkiem 6, na którym umieszczo-ny jjest ifrotor r czysci napedowe. Na fig. 3 mostek jest rozdzielony-.'wzdluz i kazda polówka blt wzglednie b2 odlana jest razem ze scianka boczna at} wzgL a2. Obie czesci at bx i a2 b2 polaczone sa ze soba srubami c, przechodzacemi nawskros od scianki do scianki. Glówki srub i nakretki moga byc z korzyscia wpuszczone w sciany, aby uniknac na powierzchniach zewnetrznych wystepów, w ruchu przeszkadzajacych. Na fig. 4 mostek b sklada sie z jednei sztuki, do której sciany boczne ax i a2 przymoco¬ wane sa srubami c, przechodzacemi przez mostek i scianki.Czesci zawieszone wedlug fig. 2 i 3 wykonywa sie z odlewu stalowego; we- , .dlug fig. 4 czesci te moga byc zlozone ' z mostka:; z .odlewu stalowego i dwóch walcowanych lub odlanych scianek. PLV With the reversers for forging large pieces known so far, the suspended part containing the drive usually consisted of sheets and a greater number of shapes, connected with each other by rivets. Under the influence of strong blows and shocks to which the turnouts are subjected during working with steam hammers and forging presses, the rivets loosen very quickly. Such complex suspension parts therefore require not only frequent repairs, but can also give rise to mishaps. The present invention remedies these drawbacks by making the suspension part as small as possible in three parts at most, and that, as long as it consists of more than one part, the joint is achieved by means of screws whose length is approximately the entire thickness of the suspended part. The small number of parts gives a large contact area and allows the use of few strong, large and long connecting screws, which, even with a high tensile strength, experience a much lower unit elongation and the shear action is smaller than with short rivets, so that these screws have a longer service life than rivets. The hanging part is shown in Fig. 1 in a front view. 2 shows a longitudinal section through a suspension part consisting of one piece. The suspension part shown in figure 3 consists of two parts and shown in figure 4 of three. The side walls in figure 2 are cast together with the bridge 6 on which the rotor is placed, it cleans the drives. In Fig. 3, the bridge is split lengthwise and each half of the bt relatively b2 is cast together with the side wall at} or L a2. Both parts at bx and a2 b2 are connected with each other by screws c, which go from wall to wall. The heads of the screws and nuts can advantageously be countersunk into the walls to avoid protrusions on the external surfaces and disturbing movement. In Fig. 4, the bridge b consists of one piece to which the side walls ax and a2 are fastened with screws c passing through the bridge and the walls. The suspended parts according to Figs. 2 and 3 are made of steel casting; we-, .on Fig. 4 these parts can be composed of 'the sternum :; made of cast steel and two rolled or cast walls. PL

Claims (2)

Zastrzezenia patentowe. 1. Nawrotnica dla wielkich sztuk przeznaczonych do kucia i t. p., tern zna¬ mienna, ze czesc zawieszona sklada sie z mozliwie niewielu, t. zn. z jednej albo najwyzej z trzech czesci. Patent claims. 1. The turning point for large pieces intended for forging, etc., the significant point that the suspended part consists of as few as possible, i.e. in one or at most three parts. 2. Nawrotnica wedlug zastrzezenia l.y tern znamienna, ze poszczególne cze¬ sci polaczone sa srubami, których dlu¬ gosc równa sie w przyblizeniu calej gru¬ bosci czesci zawieszonej.Do opisu patentowego N° 276. Fig 2 CD YfiTZZZZZZZZZZóA M Fig.% a \mmm, m i ^ u ZAHLGRAF.KOZIANSKICH W WARSZAWIE PL2. The reverser, according to the claim, is characterized by the fact that the individual parts are connected with screws, the length of which approximates the entire thickness of the suspended part. To patent N ° 276. Fig 2 CD YfiTZZZZZZZZZZÓA M Fig.% A \ mmm, mi ^ u ZAHLGRAF.KOZIANSKI IN WARSAW PL
PL276A 1920-01-15 The turning point for large pieces to be forged. PL276B1 (en)

Publications (1)

Publication Number Publication Date
PL276B1 true PL276B1 (en) 1924-06-28

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