DE657822C - Device for screening or conveying bulk goods - Google Patents
Device for screening or conveying bulk goodsInfo
- Publication number
- DE657822C DE657822C DEH139145D DEH0139145D DE657822C DE 657822 C DE657822 C DE 657822C DE H139145 D DEH139145 D DE H139145D DE H0139145 D DEH0139145 D DE H0139145D DE 657822 C DE657822 C DE 657822C
- Authority
- DE
- Germany
- Prior art keywords
- sieve
- conveyor trough
- drive
- bulk goods
- movement
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/04—Flat screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/12—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/30—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
Vorrichtung zum Absiebeu@ oder Fördern von Massengut Es sind Förderrinnen und Siebe bekannt, bei denen der Unterstützungsrahmen in. waagerechter Richtung in entgegengesetztem Sinne zum eigentlichen Siebkasten. oder Förderbod,en bewegt wird. Bei dieser Anordnung ist der vorgenannte , Unterstützungsrahmen pendelnd aufgehängt. Auf diesem sind wieder der Antrieb des Sieb- oder Förderkastens sowie schräg gestellte Pendelstützen angeordnet, die zur Abstützung des Kastens dienen. Wird die Antriebskurbelwelle in Drehung versetzt, so führt der Siebboden eine hin und her gehende Bewegung aus, welche durch die schräg gestellten Pendelstützen geführt und durch die Exzentrizität der Kurbelwelle begrenzt wird. Diese Bewegung ist also nicht waagerecht, sondern schräg nach oben gerichtet und :erzeugt somit in den Beschleunigungs- !und Verzögerungsperioden schräg nach oben bzw. nach unten gerichtete Massenkräfte P (Abb. i). Da der entgegengesetzt schwingende Antriebsrahmen aber nur Bewegungen in waagerechter Richtung ausführen kann, so werden die unausgeglichenen lotrechten Massenkraftkomp,on:enten I',r der obenerwähnten Massenkräfte P durch die Aufhängestangene auf das Siebgerüst bzw. auf das Gebäude übertragen und versetzen dieses in Schwingungen.Device for sieving or conveying bulk goods There are conveyor troughs and sieves known in which the support frame in. Horizontal direction in the opposite sense to the actual sieve box. or conveyor floor moves will. In this arrangement, the aforementioned support frame is suspended in a pendulous manner. On this are again the drive of the sieve or conveyor box as well as inclined Arranged pendulum supports that serve to support the box. Will be the drive crankshaft set in rotation, the sieve bottom performs a back and forth movement, which are guided by the inclined pendulum supports and by the eccentricity the crankshaft is limited. So this movement is not horizontal, it is directed diagonally upwards and: thus generated in the acceleration and deceleration periods Mass forces P directed obliquely upwards or downwards (Fig. i). Since the opposite However, swinging drive frames only move in a horizontal direction can, then the unbalanced perpendicular mass force comp, on: ducks I ', r der above-mentioned inertia forces P through the suspension rod on the sieve frame or transferred to the building and make it vibrate.
Es sind ferner Siebe in Vorschlag gebracht worden, bei denen zum Ausgleich jener lotrechten Massenkraftkomponente auf der Kurbehvelle o. dgl. außermittig eine Gegenmasse angebracht ist, deren Fliehkraft in der Totlage des Siebes oder der Förderrinne senkrecht nach oben bzw. nach unten gleich groß und entgegengesetzt der lotrechten Massenkraftkomponente gerichtet ist.Sieves have also been proposed to compensate for them that perpendicular inertial force component on the crank shaft or the like off-center Counter mass is attached, the centrifugal force in the dead position of the sieve or the conveyor trough vertically upwards or downwards the same size and opposite to the perpendicular Mass force component is directed.
Die Erfindung besteht nun darin, daß bei solchen Sieben die Mittellinie der Pleuelstange, welche den Antrieb mit dem Sieb oder der Förderrinne verbindet, annähernd in deren Bewegungsrichtung sowie durch deren Schwerpunkt gelegt ist. In diesem Falle übertragen sich die Massenkräfte P, welche in den Totlagen ihren Höchstwert erreichen, unmittelbar auf die Antriebskurbel-'welle, ohne die Pleuelstützen des Siels zu beanspruchen. In. dem Mittelpunkt der Kurbelwelle läßt sich diese Kraft P in eine waagerechte Pl, und eine lotrechte P, zerlegen.The invention consists in the fact that in such sieves the center line of the connecting rod, which connects the drive to the sieve or the conveyor trough, is placed approximately in their direction of movement and through their center of gravity. In this case, the inertia forces P are transferred, which are their maximum value in the dead spots reach, directly on the drive crankshaft without stressing the connecting rods of the sluice. In. At the center of the crankshaft, this force P can be broken down into a horizontal P1 and a vertical P.
Die Abb. i gibt, wie bereits oben dargelegt, den Stand der Technik wieder. Die Abb. z zeigt ein Ausführungsbeispiel der Erfindung. Auf dem Verlagerungsrahmen a, der in den Pendeln b aufgehängt ist, ist mittels der Pleuelstützen c ein Sieb ,d gelagert. An. diesem greift die Pleuelstange e an, die anderseits mit der Exzenterwelle f verbunden ist. Letztere ist auf dem Verlagerungsrahmena mittels der Lagerböcke g gehalten und erhält ihren Antrieb durch die Riemenscheibe h. Die Abbildung, welche das Sieb in der rechten Totlage zeigt, läßterkennen, daß die Pleuelstange parallel zur Siebbewegung ist und daß die Mittellinie der Pleuelstange durch den Schwerpunkt So des Siebes geht. In der Riemenscheibe ist außermittig eine Gegenmasse i angebracht, die bei der Drehung der Exzenterwelle die Fliehkraft F erzeugt.As already explained above, Fig. I shows the state of the art again. Fig. Z shows an embodiment of the invention. On the relocation frame a, which is suspended in the pendulums b, is a sieve by means of the connecting rod supports c , d stored. At. this engages the connecting rod e, the other with the eccentric shaft f is connected. The latter is on the displacement frame by means of the bearing blocks g held and is driven by the pulley h. The figure which the sieve in the right dead center shows that the connecting rod is parallel to the sieve movement and that the center line of the connecting rod through the center of gravity So the sieve goes. A counterweight i is attached off-center in the pulley, which generates the centrifugal force F when the eccentric shaft rotates.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH139145D DE657822C (en) | Device for screening or conveying bulk goods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH139145D DE657822C (en) | Device for screening or conveying bulk goods |
Publications (1)
Publication Number | Publication Date |
---|---|
DE657822C true DE657822C (en) | 1938-03-14 |
Family
ID=7178151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH139145D Expired DE657822C (en) | Device for screening or conveying bulk goods |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE657822C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE743255C (en) * | 1939-03-29 | 1943-12-22 | Heinrich List Dipl Ing | Device for generating linear mechanical vibrations of two masses moving in the same direction |
DE873344C (en) * | 1945-11-13 | 1953-04-13 | William Norman Barker | Vibrating screen |
DE952050C (en) * | 1950-07-11 | 1956-11-08 | Westfalia Dinnendahl Groeppel | Sieve or conveyor device |
-
0
- DE DEH139145D patent/DE657822C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE743255C (en) * | 1939-03-29 | 1943-12-22 | Heinrich List Dipl Ing | Device for generating linear mechanical vibrations of two masses moving in the same direction |
DE873344C (en) * | 1945-11-13 | 1953-04-13 | William Norman Barker | Vibrating screen |
DE952050C (en) * | 1950-07-11 | 1956-11-08 | Westfalia Dinnendahl Groeppel | Sieve or conveyor device |
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