CS259265B1 - Device for inertial masses' balancing with crank press - Google Patents

Device for inertial masses' balancing with crank press Download PDF

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Publication number
CS259265B1
CS259265B1 CS865953A CS595386A CS259265B1 CS 259265 B1 CS259265 B1 CS 259265B1 CS 865953 A CS865953 A CS 865953A CS 595386 A CS595386 A CS 595386A CS 259265 B1 CS259265 B1 CS 259265B1
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CS
Czechoslovakia
Prior art keywords
balancing
levers
press
crankshaft
lever
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CS865953A
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Czech (cs)
Slovak (sk)
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CS595386A1 (en
Inventor
Ladislav Vargovcik
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Ladislav Vargovcik
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Priority to CS865953A priority Critical patent/CS259265B1/en
Publication of CS595386A1 publication Critical patent/CS595386A1/en
Publication of CS259265B1 publication Critical patent/CS259265B1/en

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Abstract

Zotrvačné hmoty u hlukového lisu sú vyvážené zariadením s protizávažím s pohonom cez vlastnú vyvažovaciu ojnicu od kluky klukového hriadela pootočenej o 180° voči hlavným klukám klukového hriadela, kde protizávažia sú pevne spojené s pákami otočné uchytenými na stojane lisu tak, že páky sú orientované oproti páke, pričom vyvažovacie ojnice sú uchytené jedným koncom na vyvažovačích klukách a druhým koncom na pákách.The inertia masses in the noise press are balanced counterweight with drive through the own balancing rod from the boys crankshaft rotated 180 ° against the main shaft of the crankshaft wherein the counterweights are rigidly coupled to the levers rotatably mounted on the press stand, that the levers are oriented opposite the lever, whereby the balancing rods are attached to one end on balancing boys and the other end on the levers.

Description

Vynález sa týká zariadenia pre vyváženie zotrvačných hmot u kíukového lisu.The invention relates to an apparatus for balancing inertia masses in a crank press.

Pri zvyšovaní počtu zdvihov u klukových lisov dochádza k nepriaznivým účinkom zotrvačných hmot. Elimlnácia horizontálnych i vertikálnych zotrvačných sil sa stává nevyhnutnosťou. Doposial' známe prevedenia riešia tento problém buď protizávažím upevneným excentricky na klukovom hriadeli s excentricitou pootočenou voči excentricitám hlavných ktúk o 180°, čo však nerleši účinky vertikálně sa pohybujúcich hmot, alebo protizávažím, ktorého pohon je odvodený od kluky kl'ukového hriadela pootočenej o 180° voči hlavným kl'ukám klukového hriadela cez vlastnú vyvažovaciu ojnicu. Nevýhodou tohoto riešenia je velká hmotnosť protizávažia, čo okrem zvýšenia materiálovej náročnosti znižuje stabilitu lisu, keďže ťažisko lisu sa presunie vyššie.As the number of strokes of crank presses increases, the inertial masses are adversely affected. Elimination of horizontal and vertical inertia forces becomes a necessity. Previously known embodiments solve this problem either by a counterweight mounted eccentrically on the crankshaft with eccentricity rotated by 180 ° to the eccentricities of the main stems, which does not resist the effects of vertically moving masses, or by counterweight weighed by the crankshaft crank 180 To the main crankshaft cranks through its own balancing rod. The disadvantage of this solution is the high weight of the counterweight, which, in addition to increasing material demands, reduces the stability of the press as the center of gravity of the press is moved higher.

Uvedené nevýhody odstraňuje navrhované zariadenie pre vyváženie zotrvačných hmot u kíukového lisu s pohonom protizávaží od vyvažovačích klúk kíukového hriadela s výslednou osou súmernosti pootočenou voči hlavným klukám kíukového hriadela o 180° cez vlastné vyvažovacie ojnice, ktorého podstatou je, že protizávažia sú pevne spojené s jednozvratnými pákami uchytenými otočné na stojane lisu oproti sebe.These disadvantages are overcome by the proposed device for balancing inertia masses of a crank-type baler with counterweight from the crankshaft balancing keys with the resulting axis of symmetry rotated 180 ° over the main crankshaft via its own balancing rods, which are essentially connected to the counterweights mounted rotatable on the press stand facing each other.

Pri tomto sposobe sa zmenšuje hmotnosť protizávaží voči hmotnosti barana a hornej časti nástroja úměrně nielen převodu rk/Rk na klukovom hriadeli, ale tiež převodu r/In this manner, the weight of the counterweight against the weight of the ram and the upper part of the tool is reduced proportionally not only to the transmission r k / R k on the crankshaft, but also to the transmission r /

5 /R na pákách. Z toho vyplývá nižšia hmotnost vyvažovacieho systému voči iným doposial' známým systémom. Pozitivně je tým ovplyvnená i celková stabilita lisu. Ďalšou výhodou tohoto riešenia je, že hmota protizávažia sa nepripočítava k brzdným hmotám a nezvyšuje tak požiadavky na velkosť potřebného brzdného momentu brzdy lisu.5 / R on levers. This results in a lower weight of the balancing system compared to other prior art systems. The overall stability of the press is also positively affected by this. A further advantage of this solution is that the mass of the counterweight is not added to the brake masses and thus does not increase the requirements for the required braking torque of the press brake.

Na výkrese je na obr. 1 příklad zariadenia pre vyváženie zotrvačných hmot podlá tohoto vynálezu u dvojbodového kíukového lisu a na obr. 2 je rez priečnikom lisu v stredovej rovině. Na obr. 3 je kinematická schéma tohoto zariadenia.In the drawing, FIG. 1 shows an example of a device for balancing inertia masses according to the invention in a two-point crank press, and FIG. 2 is a cross-sectional view of the cross-member of the press in the central plane. In FIG. 3 is a kinematic diagram of the device.

Baran 2 lisu je poháňaný od klúk 11 klubového hriadela 8 cez ojnice 3. (Na obr. 2 v dósledku řezu druhá ojnica nie je znázorněná.] Protizávažia 12a, 12b a 13 sú súčasťou pák Ba, 6b a 7, ktoré sú otočné uchytené na stojane lisu 1 a poháňané cez ojnice 4, 5a, 5b od vyvažovačích klúk 9a, 9b, 10 kíukového hriadela 8. Z dóvodu eliminácie horizontálnych zložiek zotrvačných sil sú páky 6a, 6b usporiadané oproti páke 7. Z dovodu zachovania dynamickej rovnováhy majú páky 6a, 6b totožnú rovinu symetrie s pákou 7. Súhrnný zotrvačný účinok pák 6a, 6b je přitom rovnako velký ako u páky 7. Páky 6a, 6b, podobné ako· i ojnice 5a, 5b móžu mať tiež podobu jednej páky 6, resp. ojnice 5 s rozdvojením len na koncoch. Uhol a medzi ramenami vyvažovačích klúk 9 a 10 musí mať konkrétnu velkosť v závislosti od velkosti a umiestnenia jednotlivých členov kinematického reťazca zariadenia.The press ram 2 is driven from the shafts 11 of the club shaft 8 via the connecting rods 3. (The second connecting rod is not shown in Fig. 2 as a result of the cut.) The counterweights 12a, 12b and 13 are part of levers Ba, 6b and 7 which are rotatably mounted the press stands 1 and driven via the connecting rods 4, 5a, 5b from the balancing keys 9a, 9b, 10 of the crankshaft 8. In order to eliminate the horizontal inertia forces, the levers 6a, 6b are arranged opposite the lever 7. 6b the same plane of symmetry with the lever 7. The combined inertia effect of the levers 6a, 6b is as large as that of the lever 7. The levers 6a, 6b, similar to the connecting rods 5a, 5b, may also be in the form of a single lever 6 or connecting rod 5 s. The angle and between the arms of the balancing keys 9 and 10 must be of a particular size depending on the size and location of the individual members of the kinematic chain of the device.

Claims (3)

Zariadenie pre vyváženie zotrvačných hmot u kíukového lisu obsahujúce protizávažle s pohonom cez vlastnú vyvažovaciu ojnicu od kluky kíukového hriadela pootočenej o 180° voči hlavným klukám klukového hriadela vyznačujúce sa tým, že je tvořené protizávažiami (12a, 12b, 13] pevne spojenými s pákami (6a, 6b, 7) otočné uchytenými na stojane (lj lisu tak, že páky (6a, 6bj sú orientované oproti páke (7), pričom vyvažovacie ojnice (4, 5a, 5b j sú otočne uchytené jedným koncom na vyvažovačích klukách (9a, 9b, 10 j a druhým koncom na pákách (6a, 6b, 7).Device for balancing inertia masses in a crank press comprising counterweights driven by its own balancing rod from the crankshaft crank rotated 180 ° to the crankshaft main cranks, characterized in that it consists of counterweights (12a, 12b, 13) firmly connected to the lever , 6b, 7) rotatably mounted on a press stand (11j) such that the levers (6a, 6bj are oriented against the lever (7), the balancing rods (4, 5a, 5b j being pivotally mounted at one end on the balancing levers (9a, 9b) 10 and the other end on the levers (6a, 6b, 7).
CS865953A 1986-08-12 1986-08-12 Device for inertial masses' balancing with crank press CS259265B1 (en)

Priority Applications (1)

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CS865953A CS259265B1 (en) 1986-08-12 1986-08-12 Device for inertial masses' balancing with crank press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS865953A CS259265B1 (en) 1986-08-12 1986-08-12 Device for inertial masses' balancing with crank press

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CS595386A1 CS595386A1 (en) 1988-02-15
CS259265B1 true CS259265B1 (en) 1988-10-14

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