DK156166B

DK156166B - BASKET FOR Vertical Elevator

Info

Publication number: DK156166B
Application number: DK294782A
Authority: DK
Inventors: Jean Tripoteau
Original assignee: Setem
Priority date: 1981-07-01
Filing date: 1982-06-30
Publication date: 1989-07-03
Also published as: DK156166C; DE69022T1; DE3269963D1; DK294782A; AU8542582A; FR2508875A1; CA1187830A; FR2508875B1; EP0069022B1; EP0069022A1; ATE18657T1; NO822235L; PT75118B; AU558374B2; PT75118A

Abstract

1. Bucket for vertical elevator comprising a rear wall (1) designed to be attached to the endless driving member of the elevator, a front face (2, 9), forming the bottom of the bucket by joining up with the rear face (1) and two side faces, wherein the profile of any common cross section of the bucket perpendicular to its rear face is such that a portion (2) of said face forming the bottom of the bucket is constituted by a circular arc, the center of which is located on a straight line (3) forming an angle (A) of 15 to 25 degrees with the rear face (1), characterized in that said portion (2) is the main portion of said front face (2, 9) and in that said circular arc is of angular length (B + C) at least equal to 50 degrees, of which 25 degrees at the most arc situated between said straight line (3) and said rear face (1) and of which 25 degrees at least are situated on the other side of said straight line (3).

Description

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Den foreliggende opfindelse angâr en spand til en lodret ele-vator bestâende af en bagside, der er indrettet til at blive tilkoblet et endelest drivorgan i elevatoren, en forside, som danner spandens bund, idet den slutter sig til bagsiden og to 5 sideflader, hvorved profilen af ethvert tværsnit af spanden vinkelret pâ dens bagside er sâledes, at en del af den side, der danner spandens bund, udgeres af en cirkelbue med centrum pâ en ret linie, der danner en vinkel pâ fra 15 til 25° med bagsiden.The present invention relates to a bucket for a vertical elevator consisting of a rear side adapted to be coupled to an endless drive means in the elevator, a front side forming the bottom of the bucket joining to the rear and two side surfaces, the profile of any cross-section of the bucket perpendicular to its back is such that a portion of the side forming the bottom of the bucket is formed by a circular arc with the center on a straight line forming an angle of 15 to 25 ° with the back.

1010

Det er kendt, at ydelsen af en spandelevator afhænger af et stort antal faktorer, sàsom antallet af spande pr. meter ele-vator, af hastigheden af elevatoren og især af formen af spanden. Det er ligeledes kendt, at det ikke er muligt at forege 15 antaller af spande pr. meter ud over en vis grænse, eftersom spanden ved en given vandret projektion af spandâbningen bliv- er for dyb og ikke fyldes hensigtsmæssigt. Det er endvidere kendt, at det ikke er ti1strækkeligt at ændre aile dimensi-onerne af en vilkârlig spand efter samme skala. Spandenes 20 egenskaber er i virkeligheden forskellige og afhænger af deres storrelse, og ydelsen viser sig at blive pâvirket eller i det mindste modificeret.It is known that the performance of a bucket elevator depends on a large number of factors, such as the number of buckets per unit. meters ele- vator, by the speed of the elevator, and especially by the shape of the bucket. It is also known that it is not possible to feed 15 numbers of buckets per meters beyond a certain limit, since the bucket, at a given horizontal projection of the bucket opening, becomes too deep and is not filled properly. It is further known that it is not sufficient to change all dimensions of any bucket on the same scale. The properties of the buckets 20 are in fact different and depend on their size, and the performance appears to be affected or at least modified.

Den foreliggende opfindelse er resultatet af en langvarig ud-25 forskning af formen, især vedrerende spandens profil, for at sage at styre dimensionsparametrene for en spand, sâledes at det blîver muligt at kombinere et stort antal spande pr. ele-vatormeter med en god fyldning af spanden over en betydelig hastighedsregu1eringszone, og pâ simpel mâde variere de enske-30 de dimensioner af spanden uden at pâvirke elevatorens ydelse.The present invention is the result of a long-term investigation of the mold, especially concerning the profile of the bucket, to say that it is necessary to control the dimensional parameters of a bucket, so that it is possible to combine a large number of buckets per unit. electric meter with a good filling of the bucket over a considerable speed control zone, and in simple terms the individual dimensions of the bucket vary without affecting the performance of the elevator.

Profilen af spandene ifolge opfindelsen danner en optimal profil, som giver elevatoren, der er forsynet med sâdanne spande, en langt sterre ydelse end de klassiske elevatorer.The profile of the buckets according to the invention forms an optimal profile, which gives the elevator, which is provided with such buckets, a far stronger performance than the classic elevators.

35 Ifelge opfindelsen tiIvejebringes en spand af den i indlednin- gen nævnte art, der er ejendommelig ved, at den nævnte cirkel-buedel udger hovedafsnittet af forsiden, og at cirkelbuen har en buelængde pâ minst 50°, hvoraf hojst 25° ligger mellem denAccording to the invention, a bucket of the kind mentioned in the introduction is provided, characterized in that said circular arc portion forms the main section of the front and that the arc has an arc length of at least 50 °, of which at most 25 ° lies between the

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2 rette Unie og bagsiden, og hvoraf mindst 25e ligger pâ den anden side af den rette Unie. Derved opnâr man, at det mate-riale, som samles op af spanden, behandles af denne som om spanden var et skærende værktej, og materialet, som kommer ind 5 i spanden, ruller indvendig i spanden pâ samme mâde som spâ- ner, der ruller pâ et skærende værktoj. Denne bevægelse hin-drer rystelser fremkaldt af gods, som rammer spandens bund.2 straight Union and the back, of which at least 25e is on the other side of the right Union. In this way, the material collected by the bucket is obtained by treating it as if the bucket was a cutting tool, and the material entering the bucket rolls inside the bucket in the same manner as bucket which rolls on a cutting tool. This movement prevents the shaking of goods that hit the bottom of the bucket.

Det plan, hvori spandens âbning ligger, kaldet spandens âb-10 ningsplan, haelder fortrinsvis i forhold til bagsiden med en vinkel mellem 75 og 80° og afstanden mellem de to rette lini-er, der er parallelle med denne âbning og gâr gennem endepunk-terne af cirkulbuen, svarer omtrent til de nederste 5/6 af spandens dybde. Det er fordelagtigt, at den nævnte cirkelbue 15 forlænges med en evre i hovedsagen retlinet del, som hæder ca.The plane in which the opening of the bucket, called the opening plane of the bucket, is preferably inclined with respect to the back at an angle between 75 and 80 ° and the distance between the two straight lines parallel to this opening and passing through the end point. the curves arc roughly equal to the bottom 5/6 of the bucket depth. Advantageously, said circular arc 15 is extended by a generally rectilinear portion honoring approx.

10° i forhold til projektionslinien eller normalen til âb-ningsplanet i det evre endepunkt af cirkelbuen og i en retning ud fra spanden.10 ° with respect to the projection line or normal to the aperture plane at the end of the arc and in a direction from the bucket.

20 Den nederste del af cirkelbuen er i ovrigt fortrinsvis for- bundet til. bagsiden enten via en forbindelsesdel med en krum-ningsradius eller via en nedre i hovedsagen retlinet del pa-rallel med àbningsplanet, hvor den parallelle del afsluttes med en forbindelsesdel med en lille krumningsradius. Derved 25 kan man foroge spandens kapacitet uden at ege dens dybde sam- tidigt med, at "rullevirkningen" bevares. En sâdan udformning gor det muligt at placere et storre antal spande pr. længdeen-hed og tillader et stort nyttevolumen, set i forhold til et teoretisk produktvo1umen, som svarer til det rumfang, som op-30 tages af hver spand, nèr den bevæger sig én længdeenhed.20 The lower part of the arc is also preferably connected to. the back side either via a connecting portion having a radius of curvature or via a lower generally rectilinear portion parallel to the opening plane, the parallel portion terminating with a connecting portion having a small radius of curvature. Thereby 25 one can increase the capacity of the bucket without increasing its depth while retaining the "rolling effect". Such a design makes it possible to place a larger number of buckets per unit. length and allows a large volume of utility, as compared to a theoretical product volume, which corresponds to the volume occupied by each bucket as it moves one unit of length.

Opfindelsen skal i det folgende forklares nærmere under hen-visning til tegningen, hvor 35 f i g. 1 skematisk viser en spand ifolge opfindelsen, set i pro fil, og fig. 2 hvorledes spanden kan gores storre for at foroge kapa-ci teten.The invention will be explained in more detail below with reference to the drawing, in which 35 f in g. 1 schematically shows a bucket according to the invention, seen in profile, and fig. 2 how the bucket can be made larger to increase the capacity.

33

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Under henvisning til disse figurer ser man tegningen af span-dens plane bagside 1 i figurens plan. Ved denne side er span-den tilkoblet et endelost bevægeligt element (ikke vist), som kan bestà af en eller to kæder eller en rem, ved hjælp af bol-5 te eller enhver lignende ti1koblingsmekanisme. Forsiden 2, som ogsâ danner bunden af spanden, ved at forsiden slutter op til bagsiden 1, har en cirkelbueformet profil, hvis centrum 0 er placeret pà en ret linie 3, som danner en vinkel A med retnin-gen af bagsiden 1. Denne vinkel kan være mellem 15 og 25° og 10 er fortrinsvis ca. 20°. Buelængden af cirkelbuen 2 er mindst 1 i g med 50°, og i de fleste spande med smâ dimensioner er den ikke over 50°. Denne vinkel er summen af to vinkler B og C (der i det pà figuren viste tilfælde er lige store), hvor vin-klen B hejst er lig med 25° og i praksis ligger mellem 22e og 15 25°, mens vinklen C mindst er lig med 25° og i praksis kan nâ op til 40° for spande med store dimensioner.Referring to these figures, one can see the drawing of the plane's backside 1 in the plane of the figure. On this side, the span is connected to an endless movable element (not shown), which may consist of one or two chains or a belt, by means of bolts or any similar coupling mechanism. The front side 2, which also forms the bottom of the bucket, by the front end joining up to the back side 1, has a circular arc-shaped profile, the center 0 of which is located on a straight line 3, which forms an angle A with the direction of the back side 1. This angle may be between 15 and 25 ° and 10 is preferably about 20 °. The arc length of the circular arc 2 is at least 1 in g with 50 °, and in most buckets of small dimensions it is not above 50 °. This angle is the sum of two angles B and C (which in the case shown in the figure are equal), where the angle B is at most equal to 25 ° and in practice lies between 22e and 15 25 °, while the angle C is at least equal to 25 ° and in practice can reach up to 40 ° for buckets with large dimensions.

Det er kendt at lade spandens âbningsplan 4 hælde i forhold til vandret. Denne hældning er givet ved vinklen D, som âbnin-20 gens plan 4 danner med spandens bagside 1. For den beskrevne spand andrager denne vinkel D fra 75° til 80°, sàledes at nàr spandens bagside er lodret, hælder pladen 4 fra 10e til 15° i forhold til vandret, hvilket i hovedsagen svarer til den vinkel, som det transporterede produkts naturlige skrâning dan-25 ner.It is known to allow the bucket opening plane 4 to be inclined to the horizontal. This inclination is given at the angle D which the plane 4 of the opening 20 forms with the back of the bucket 1. For the bucket described, this angle D is from 75 ° to 80 °, so that when the back of the bucket is vertical, the plate 4 inclines from 10e to 15 ° to the horizontal, which corresponds essentially to the angle formed by the natural slope of the transported product.

Som nævnt ovenfor, er cirkelbuen 2 afgrænset af to punkter 5 og 6. Det er nedvendigt, at afstanden a mellem de to rette li-nier 7 og 8, der er parallelle indbyrdes og med retningen fra 30 âbningsplanet 4, i hovedsagen svarer til fem sjettedele af spandens dybde. Da punktet 6 danner spandens bund (d.v.s. det nederste punkt, nàr bagsiden 1 stâr lodret), er disse fem sjettedele de nederste fem sjettedele af den totale dybde. Den sidste sjettedel b af denne dybde er bestemt af en ovre de! 9 35 af spandens forside, som forlænger cirkelbuen 2. Denne evre del 9 har en i hovedsagen lineær profil. Dens retning er sâle-des, at den danner en vinekl E pà ca. 10° med projektions 1ini-en 10 fra punktet 5 vinkelret pâ âbningsplanet 4 og pegende ud 4As mentioned above, the circular arc 2 is bounded by two points 5 and 6. In essence, the distance a between the two straight lines 7 and 8, which are parallel to each other and with the direction from the opening plane 4, is substantially equal to five sixths of the bucket depth. Since point 6 forms the bottom of the bucket (i.e., the bottom point when the back 1 is vertical), these five sixths are the bottom five sixths of the total depth. The last sixth b of this depth is determined by an upper de! 9 35 of the front of the bucket, which extends the circular arc 2. This evert portion 9 has a substantially linear profile. Its direction is thus to form a wine cluster E of approx. 10 ° with the projection 1in 10 from the point 5 perpendicular to the opening plane 4 and pointing out 4

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fra spandens âbning. Det ses, at forbindelsen niellent denne del 9 og delen 2 sker under en vinkel G, som ikke overstiger 180°. (Vinklen G mâles mellem delen 9 og tangenten i punktet 5 til delen 2).from the opening of the bucket. It will be seen that the connection between this part 9 and part 2 is made at an angle G which does not exceed 180 °. (The angle G is measured between the part 9 and the tangent in point 5 to part 2).

55

Endelig viser fig. 1, at delen 2 i punktet 6 er forbundet med bagsiden 1 ved hjælp af en del 11 med en lille krumningsradi-us, der afhænger af spandens dybde a + b, da den frembringes under formgivningen ved presning eller drivning. Man har ikke 10 pâ disse figurer vist spandens sidevægge, som kan være plane, enten helt fra âbningen, eller de kan hâve en evre del, der er udformet pâ lignende mâde som den ovennævnte del 9, i forhold til âbningsplanet. Sidevæggene kan med fordel konvergere mod spandens bund.Finally, FIG. 1, that part 2 of point 6 is connected to the back side 1 by means of a part 11 with a small radius of curvature which depends on the depth a + b of the bucket as it is produced during shaping by pressing or driving. No 10 of these figures have shown the sidewalls of the bucket, which may be planar, either from the opening or they may have an evert portion similar in shape to the aforementioned portion 9 with respect to the aperture plane. The side walls can advantageously converge towards the bottom of the bucket.

1515

Spanden ifelge opfindelsen er sâledes fuldstændigt bestemt. En af dens væsentligste fordele ligger i enkelheden af dens profil, der muligger en let fremstilling af værktejet til dens forarbejdning, som især foregâr ved presning. Formen af dens 20 forside og bund, bestemt af sektionerne 9 og 2, sikrer, at denne spand fyldes godt, nâr den sænkes ned i styrtgodset ne-den for elevatoren, og sikrer en god ti1bageho1delse af godset under tipningen ved elevatorens top. Man har faktisk konstate-ret, at spanden ifelge opfindelsen ved fyldningen fungerer som 25 et skæreværktoj, idet styrtgodset "gennemskæres" af kanten 9 og derpâ "ruller" uden afbrydelser pâ sektionen 2 som en kon-tinuerlig spàn. Denne udformning g or det muligt at undgâ de opspring af styrtgods pâ bunden af spanden, som generer ved fyldningen, og især at undertrykke enhver vibration, som kunne 30 fremkaldes ved godsets sted imod spanden. Der opnàs herved en bedre stabilitet af hele elevatoren og et mindre slid. I af-tipningsojeblikket drejer spanden omkring elevatorens everste hjul. Den ovennævnte del 9 danner et tilbageholdelseselement for produktet for at modvirke dets tendens til at slippe span-35 den for tidligt. Hejden og viklen af denne del er i denne hen- seende vigtige paramétré, og de ovenfor nævnte egenskaber er et optimalt kompromis for at sikre bâde denne tilbageholdel-sesvirkning og ïndtrængningsvikrningen i styrtgodset ved foden af elevatoren.The bucket according to the invention is thus completely determined. One of its main advantages lies in the simplicity of its profile, which allows easy preparation of the workpiece for its processing, which takes place especially by pressing. The shape of its front and bottom 20, as determined by sections 9 and 2, ensures that this bucket is filled well as it is lowered into the down load of the elevator, and ensures a good backing of the goods during the tipping at the top of the elevator. In fact, it has been found that the bucket according to the invention at the filling functions as a cutting tool, in that the load is "cut" by the edge 9 and then "rolls" without interruptions on section 2 as a continuous chip. This design makes it possible to avoid the bumps of crashed goods on the bottom of the bucket which are disturbed by the filling, and in particular to suppress any vibration that could be induced at the site of the goods against the bucket. This provides better stability of the entire lift and less wear. At the moment of tipping, the bucket revolves around the first wheel of the elevator. The above portion 9 forms a retaining element for the product to counteract its tendency to release the span prematurely. The height and winding of this part are important parameters in this regard, and the above-mentioned properties are an optimal compromise to ensure both this retention effect and the intrusion winding of the load at the foot of the elevator.

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sp

Formen af spanden ifolge opfindelsen, sâledes som den er defi-neret, har ti1 folge, at der kan anvises en fremgangsmâde til bestemmelse af en spands optimale profil, hvor spanden især er indrettet til indbygning i et anlæg med givne egenskaber.The shape of the bucket according to the invention, as defined, has the consequence that a method can be provided for determining the optimum profile of a bucket, the bucket being particularly adapted for installation in a system with given properties.

55

En af disse egenskaber er den onskede kapacitet af elevatoren.One of these features is the desired capacity of the elevator.

Ved en given hastighed bestemmes kapaciteten som projektionen af spandens àbning i et vandret plan samt antallet af spande, som indfores pâ en længde-enhed af elevatoren. Det ses, at 10 denne kapacitet direkte bestemmer spandens dybde. Ud fra denne ene angivelse ger opfindelsen det muligt hurtigt at bestemme den optimale spand, som svarer til de stillede krav.At a given speed, the capacity is determined as the projection of the opening of the bucket in a horizontal plane as well as the number of buckets inserted into a unit of length of the elevator. It is seen that this capacity directly determines the depth of the bucket. From this one indication, the invention makes it possible to quickly determine the optimum bucket that corresponds to the requirements.

Nâr man kender a + b, altsâ a og b, er det faktisk tilstrække-15 1i g t at trække de to rette linier 7 og 8, som danner en kendt vinkel D med lodlinien. Man trækker derefter den rette linie 3, som danner vinklen A med lodlinien. Den rette linie skærer de rette linier 7 og 8, som her bestemmer et liniestykke, hvoraf man tager halveringslinien, ogsâ kaldet midtnormalen.Knowing a + b, that is, a and b, it is actually sufficient to draw the two straight lines 7 and 8, which form a known angle D with the vertical. Then you draw the straight line 3, which forms the angle A with the vertical. The straight line intersects the right lines 7 and 8, which here determine a line segment from which to take the bisector line, also called the center normal.

20 Denne halveringslinie skærer hver af de rette linier 7 og 8 i punkterne 5 og 6. Det er sâledes ti1strækkeli g t at trække cir-kelbuen gennem punkterne 5 og 6, givet ved, at cirkelbuen har sit centrum pâ den rette linie 3, og hvor buelængden fra 5 til 6 dækker en vinkel pâ 50°. Dermed har man konstrueret delen 2.20 This bisecting line intersects each of the straight lines 7 and 8 at points 5 and 6. Thus, it is sufficient to draw the arc through points 5 and 6, given that the arc has its center on the straight line 3, and where the arc length from 5 to 6 covers an angle of 50 °. Thus, part 2 has been constructed.

25” Denne de! forlænges i den ene ende med delen 11 og i den anden ende med delen 9. Derefter trækkes lodlinien 1 og planet 4, og spandens profil er fastlagt.25 ”This one! is extended at one end with the part 11 and at the other end with the part 9. Then the vertical line 1 and the plane 4 are drawn and the profile of the bucket is determined.

Man kan derefter tilpasse denne forste tegning for at justere 30 spandens kapacitet nojagtigt til den onskede, som vist i fig.This first drawing can then be adapted to precisely adjust the capacity of the bucket to the desired one, as shown in FIG.

2. Man genfinder pâ denne figur de i det foregâende nævnte elementer med de samme henvisningstal.2. In this figure, the elements mentioned above are found with the same reference numerals.

Det er sâledes, at man kan foroge spandens kapacitet uden at 35 ændre hojden (a + b) ved at forskyde punktet 6 udad (til 6a).It is thus possible to increase the capacity of the bucket without changing the height (a + b) by displacing the point 6 outwards (to 6a).

Delen 2 forlænges derefter med en plan del 2a parallel med âb-ningsplanet 4, forbundet til bagsiden la af en forbindelsesdel lia, som svarer til delen 11. Denne spand med en storre âbningThe portion 2 is then extended by a flat portion 2a parallel to the opening plane 4, connected to the back side 1a of a connecting portion 11a corresponding to the portion 11. This bucket having a larger opening

Claims

5 You can also increase the height (depth) of the bucket (c + d) by extending the profile 2 at point 5 (until point 5a). The center angle of the extension portion 2b of the profile 2 is such that it, added to the angle C of 25 °, forms an angle F which can reach up to 40 °. The five-sixths of the depth of the bucket is thus indicated by the distance c, and the bucket is extended beyond point 5a with a de! 9a having the same geometric properties as the above-mentioned part 9. The opening of the bucket is then located at 4a, and its back side 15 is side 1 extended upwards, or side 1a. It can be seen from the figure that one can vary the original drawing of the bucket by large proportions without changing the characteristics of the embodiment. Finally, the strictly equal change of the bucket must be added to these possibilities. In these manufacturing methods, the bucket can be adapted to the load and to the plant while preserving its essential qualities. The invention is particularly advantageous for use in the field of transport. 25 Patent claims.

A bucket for a vertical elevator, consisting of a rear side (1), adapted to be connected to an endless drive means in the elevator, a front side (2, 9) which forms the bottom of the bucket as it joins the rear side ( 1) and two side faces, whereby the profile of any cross-section of the bucket perpendicular to its back (1) is such that a portion (2) of the side forming the bottom of the bucket is formed by a circular arc with the center of a straight line (3) forming an angle (A) of 15-25 ° with the back (1), characterized in that the part (2) forms the main section of the front (2, 9) and the arc has an arc length DK 156166 B (B + C) of at least 50e, of which at most 25 ° (B) lies between the straight line (3) and the back (1), and of which at least 25 ° (C) lies on the other side of the straight line (3).

Bucket according to claim 1, characterized in that the plane (4) in which the opening of the bucket lies is inclined with respect to the back at an angle (D) which is between 75 ° and 80 ° and that the distance (a) between the two straight lines (7, 8) parallel to the aperture (4) and passing through the end points (5, 6) of the arc (2), approximately equal to the bottom five sixths of the depth of the bucket, and that the arc (2) is extended by an equal portion (9) which is substantially rectilinear and slopes approx. 10e (E) relative to a normal (10) to the plane (4) and starting from the first end point (5) of the arc (2) in the direction out of the bucket 15.

Bucket according to claim 1, characterized in that the upper part (9) forms an angle. (G), which can be at most 180 °, with the tangent of the circular arc (2) at the junction 20 (5).

Bucket according to one or more of claims 1-3, characterized in that the upper end point (6) of the circular arc (2) is connected to the rear (1) via a lower generally rectilinear portion (2a) parallel to the opening plane ( 4) and terminated with a connecting part (lia) with a small radius of curvature.

Bucket according to claim 1, characterized in that the angle (A) which forms the center line (3) of the arc of the circle (2) with the back side (1) of the span is equal to 20e. 35