DE2917368A1 - Resilient support for vibratory machines - has no-maintenance readily available spring rubber elements forming joints between legs and machine - Google Patents

Abstract

The sieve (1) or other vibratory machine is supported on several legs (8) whose ends are connected to the machine or foundation base by resilient members in the form of resilient rubber cross joints (11, 12) which have a resetting force. These joints can be simply made of commercially available spring rubber elements (13, 14). With the correct dimensions to resetting force cancels or surpasses the tipping moment at each stage of movement of the machine so that the bearing stability of the machine is always guaranteed. The support is suitable for all machine sizes whilst consisting of standard commercially available parts requiring no maintenance.

Description

,. .. .. · · ί. J I / JUU ι

β · »* ··· tt · T

BÜHLER-MIAG GmbH. *. ·. '..''■■' ^: 09-'0 ^. '197O Pat / Ad / Ar;

(ME-701'l)

Support for machines with vibratory drive

The invention relates to a support for oscillating movements caused by an oscillating drive Machines such as screening machines and other classifying devices, Conveyor etc. «which stand on several supporting legs, their Ends are connected to the machine or the foundation via elastic links.

For circular vibrating flat screens, suspension on ropes or rod bundles has so far been mainly used. This either requires very complex support frames or extremely strong ceiling constructions, especially with larger sieve units. Ss is also known to sieve machines and others To arrange machines with oscillating movements on pendulum supports or spring struts (DT-PS 147 483 »300 5 ^ 7, Ml 239). These Outriggers are either only suitable for low loads or smaller oscillation amplitudes or require that the The vibratory drive provides the necessary restoring torque at the same time, i.e. keeps the moving part of the machine in a stable position during the vibratory movement, because the support itself cannot do this.

It is also known from screening machines (DE-GM 7 407 to provide the support legs at the top and bottom with elastic connectors in the form of spring bodies, attached by two to each Cylindrical polyurethane echoes arranged between the support leg and the machine or base plate are formed at the end of the leg will. Such spring bodies wear out with heavy, a lot of machines in use due to the high Use quickly and - as has been shown in practical operation - at certain time intervals again and again renewed, which causes undesired machine downtimes and additional · costs | is deficient in this known support with disk-shaped spring elements also have their own minimum restoring torque.

03Q04U / 0507

BÜHLER-MIAG GmbH ''''"" 2 - '' 0 * 9.0 «*. 1979 Pat / Ad / Ar

The invention is based on the object of providing a support for machines with oscillating motion, in particular for such with a circular swinging motion to indicate which one is easy and inexpensive and also suitable for large weights or heavy machines, requires no maintenance and has a sufficient restoring torque.

This object is achieved according to the invention in that as elastic members are provided at the two ends of the support legs rubber spring universal joints with restoring torque. the rubber universal joints used here can be used in a simple Made from commercially available rubber suspension elements and, if correctly dimensioned, result in a restoring torque, which cancels or outweighs the overturning moment in every phase of movement of the machine, so that the positional stability of the Machine is always aware.

According to the further invention, each rubber spring universal joint has two rubber spring elements firmly connected to one another with crossing longitudinal axes, one with the support leg and the other with the machine or the foundation is indirectly connected, the two ginami spring elements connected to the ends of the support leg with respect to their longitudinal axes offset from one another by 90 degrees and the distance between two axially parallel rubber suspension elements is equal to the center distance of the two by 90 degrees offset rubber spring elements. The crosswise arrangement of two rubber spring elements or the connection of two Such elements to form a universal joint and the formation of each support leg at both ends with such a rubber spring universal joint make it possible that a circular swinging movement or a flat swinging movement can also be used.

When rubber spring elements are mentioned here and in the following, it is not just spring elements with intermediate layers made of rubber, but also those with intermediate layers made of other elastic materials, for example Plastic with the product name Vulcollan. For the structural design of the individual support leg

0300U / 0507

BÜHLER-M1AG GnbH - 3 - Ο9.ΟΊ.1979 Pat / Ad / Ar

(MF, -7Hl ¹ O

there are various possibilities. In a preferred embodiment of the support according to the invention, each support leg is made from a rigid tube two recordings at its ends offset by 90 degrees are formed, each of which is one of the rubber spring elements of the assigned rubber spring universal joints record and detachable bit connected to them, while the other Gujneif ederelements of the GuBMi spring universal joints in one with the machine resp. the foundation connected recording are held releasably.

Another preferred embodiment provides support legs each from a rigid square tube that is attached to each of its a rubber spring element in a detachable connection at both ends of the associated rubber spring universal joint, whose another rubber spring element in an on the machine or on the Foundation attached to the recording is releasably fixed.

In the case of large machine units with correspondingly large masses set in vibration, the known design of the commercially available rubber spring elements alone is not sufficient more out to meet all requirements Achieve support for the following three reasons. First, every rubber spring element has a specific one static load capacity a very specific, associated torque (righting moment), i.e. if the static Carrying capacity, this inevitably increases the torque. This is unfavorable because of the outriggers for vibrating machines to achieve a favorable natural frequency, it is necessary to be able to determine the static load-bearing capacity and the torque separately or independently of one another.

Second, when two rubber spring elements are arranged in a crosswise manner, this becomes perpendicular to the axis of rotation of one element lying other element also introduced a moment, so that in this its own torque about the longitudinal axis and the superimposition moment as well as the static load add. In heavy machines, this can lead to overstressing of the rubber intermediate layer (s) and thus to their

0 300A4 /

BÜHLER-MIAG GmbH.: '.. * ..- V -'','.<-'9".0'i. 197y Pat / Ad / Ar

premature wear. By enlarging the elements |:

if one does not provide a remedy here, · *> «ί1 the larger dimensioned Ii

te element with the same deflection (angle of rotationJ also a ■ '

greater torque generated. A greater length would only have |

then success if by shortening the> ■■

Rubber liners in the middle of the element the ur- φ

initial torque would be retained. Such measures |

however, lead to undesirably long elements. I;

Third, the internal parts of the commercially available items ;;

axially reduced relative to the outer parts under the load %

slip, whereby the stability of the supported machine |

can be affected. I.

In order to use commercially available rubber spring eleaienta this | Avoid deficiencies in the present support according to a further important feature of the invention for the outer part and the inner part of the rubber spring element a common one

Recording provided, which the inner part adjustable, but ^

immovably receives and on or on which the outer part | '

indirectly or directly movable relative to the inner part |:

is stored. The structural design is here ·. ;;

advantageously made so that the inner part longitudinally axially at ϊ _;

both ends each has a pin that is in the receptacle L

is adjustably fixed and on which one the inner part axially t?

supporting bearing body is rotatably mounted, which | /

the outer part receives positively or non-positively. Through this Γ

Training are all transverse forces or static forces and \ f.

the p acting at right angles to the actual axis of rotation

Superposition moments absorbed by the bearings, so that the } Rubber pads only for the righting moments \

need to be designed and an optimal natural speed [

is achieved by the system. Since the inner body of each | Rubber spring element is axially supported by the bearing bodies,

relative movements or slippage are not;,

■ Or rather possible. |

The invention is explained further below with the aid of the embodiments shown in the drawings.

0300AA / 05 0 7

BUHLER-MIAG GmbH Show it

2S17368

υ9 · υ <ί.1979 Pat / Ad / Ar

Fig. 1 shows a screening machine with the inventive Support in view,

Fig. 2 is a side view of the screening machine,

Fig. 3 is a view of a supporting leg of the screening machine on a larger scale,

Fig. Ί a view of FIG. 3 corresponding to another embodiment of a support leg,

Fig. 5 is a section through the support leg according to the line VV in Fig. K and

Fig. T> partially one of the figure corresponding

Section through a support leg with direct mounting of the outer parts of each rubber spring element at the assigned recording.

The machine with oscillating drive shown in Figures 1 and 2 is a screening machine 1 with flat screens arranged in groups in the machine housing 2 on several levels, two material inlets 3 for the supply of the material to be screened, for example wood chips, two distributors Ί ! to distribute the goods on the individual sieve levels, an ascending sifter 5 connected to the machine housing to form a unit for the separation of light material components, an oscillating drive 6 designed as an unbalance drive and two Gutauslänfen 6,7 for the sieve fractions.

The screening machine is supported by four support legs B _1, the upper ends of which are connected to the machine housing 2 via elastic links and the lower ends of which are connected to the foundation 9 via elastic links. According to Figure 3, there is each

- β 0300U / 0507

BUULER-MIAG GmbH

υ9. ο Ί.1979 Pat / Ad / Ar IME-7Ö14)

Support leg ö made of a stiff square tube 10 and two rubber spring universal joints 11,12 with restoring torque are used as elastic members. The individual rubber spring universal joint 11 or 12 has in a known manner two rubber spring _{elements 13 t} 14 connected to one another by welding, the longitudinal axes 15 t 16 crossing each other, each rubber spring element 13 and 14 having a tubular outer part 17 and a hollow box-shaped inner part t8 in its end walls two holes 19 are provided each has. Between the outer part 17 and the inner part 18, intermediate layers 20, including rubber, distributed evenly on the circumference of the latter, are arranged, which outer part 17 and inner part 18 elastically support one another. The rubber spring element 13 of the upper rubber spring universal joint 11 is releasably fastened in a receptacle 23, which in turn is attached to the machine housing 2, by means of two screw bolts 21 passed through the bores 19 in its inner part 18 and by means of nuts 22. The rubber spring element 14 of the rubber spring universal joint 11 is releasably fixed to the upper end of the support leg 8 with the aid of two screw bolts 21 and nuts 22. In the same way, each by means of two bolts 21 and nuts 22, the two Guimnifederelemente 13.1 * detachably fixed "of the lower rubber spring universal joint 12, nämJ i ch the rubber spring element 13 at the lower end of the support leg 8 and the Gumraifederelement l4 in a receptacle 24 which is firmly connected to the foundation 9. As can be seen in Figure 3, the arrangement of the two rubber f efierkrpuzgeJ enkc 11,12 is such that their rubber spring elements 13,14 connected to the support leg are offset by 90 degrees and the center distance 25 of two axially parallel rubber spring elements 13} 13 the Achsabsftand 26 of the two rubber spring elements l4, l4 offset by 90 degrees is the same.

In the embodiment variant illustrated in FIGS. 4 and 5, the support leg Iü8 is made of a cylindrical tube

030044/0507

BÜHLER-M1AG GmbH ■ · · '■ "-' · 'Ο9'. 'ΥΊ. 1979 Pat / Ad / Ar

IME-7Ö I t)

110 shaped, the ar seinmi ends j <? a connection plate welded to it 127 '>tw.; 28 has, on which a recording t29 b / .w. \ ~) <> is firmly but detachably attached. The receptacles 129, 13 <> are offset by 9 ⁽ > degrees to one another and are each formed by two angular bearing nozzles 131 which are spaced apart and mirror-inverted to one another and which are connected by screws 132 to the connection point 127 and 122 ^are connected ·

The elastic links between the support leg If) O on the one hand and the machine housing ί ·> 2 or foundation 1U9 on the other hand are two rubber spring elements 111, 112, each of which comprises two rubber spring elements H3i 11Ί arranged with crossing longitudinal axes It5, n6, each of which has two connecting plates. 3 are welded together. Each of these rubber spring elements 113, 11 * 1 is composed of a square tube-shaped outer part HT _1, a solid, square-shaped inner part 118 and intermediate layers 120 made of rubber that support one another (see in particular FIG. 5). The inner tube 1l8 has a peg at both ends along its longitudinal axis. 3 ¹ "with a conical bearing flat which is inserted in the conical bearing bore 135 with which each of the said bearing stubs 131 is provided. With the aid of a washer 13b assigned to each journal 13'i and a nut 137, this and thus the inner part II8 are clamped against the two bearing supports 1) 1 of the associated receptacle, so that a non-positive connection between the journal ni and the bearing does - / .en 131 is effected. By correspondingly turning the bearing journals 13 * »in their bearing bores 135 before tightening the nuts 137, the position of the inner part 118 can be adjusted differently. The tubular outer part 117 is inserted with each of its two ends in a plate-shaped bearing body 1381 which is rotatably mounted on one of the journals 134 of the inner part 118. While the inner part Π8 of each Guramlfedereleaentes 113 or 1 1 «♦ directly or immediately in the of two storage

030044/0507

DÜHLFR-MTAG UribH,;,, - 'H'. '. '. r -, \ '; .. \ ογη Pn t / Λ - !,', Vr

support 131 embodied recording is stored, is the Associated AuIl en te i 1 ti? mj tifiable, namely under mediation the bearing body 1 38 and journals 13 '<. «N the recording stored, relative to the inner part 118 to the Longitudinal axis 1 16 or 11S rotatable.

Both the rubber spring elements 113, 11 '* of the rubber spring universal joint 111 at the upper end of the support leg 108 and the two rubber spring elements 11 3, 11 *' les Gurami spring universal joint 112 at the lower end of the support leg are formed in the manner described above , whereby of the rubber spring elements of the rubber ederkreuzge 1 enkes 111 its rubber spring element; 1 Ί is received by the upper seat 129 of the support leg I08 and its rubber i'ederelement 113 by the seat 123 attached to the machine housing 1O2 and formed by two bearing supports 13I, and by the rubber spring elements 113 »11Ί of the GuBsmifederkubersundes 112 the rubber spring element 113 in the lower seat 13O of the support leg I08 and the rubber spring element 11 '* is held in the receptacle \ 2k attached to the foundation 109, which also consists of two bearing supports 13t.

The embodiment variant shown in FIG. B is provided with the same reference numbers, but with the addition of IOP, as far as the same components as in the embodiment according to FIGS. 4 and 5 are involved. Here, too, the supporting leg 2OB of cylindrical tube 210 nit terminal plate 227 is connected via a rubber spring universal joint with the machine housing and the foundation, of which only the rubber spring universal joint 211 with rubber spring elements 213 * 214 at upper Eude of the support leg is illustrated 208th The rubber spring universal joint at the lower end of the support leg 20Ö corresponds in its design to the rubber spring universal joint 211 and is to be thought of as analogous to FIG.

0300U / 0507

7353

COOLS. R-MI AG Gn bK

79 P nt / Λ '' ,, Yr

In contrast to the embodiment according to FIGS. 4 and 4, in this variant both the inner part 218 and the outer part 217 of the Guismifedereleroente 213 »21 ^/ l connected to one another by connecting plates 233 are cylindrical and a cylindrical intermediate layer 220 made of Gutami is provided between them vulcanized. The inner part 218 of each rubber spring element 213 or 214 has two pins 23 * bit conical bearing fleece at its ends, with the aid of which it is supported in the conical bearing bores 235 of two bearing supports 231. A nut 237 with washer 23b each clamps the pin 23 ** in a rotationally fixed but adjustable manner against the associated bearing supports 231.The outer part 217 of the rubber spring element 213 or 214 is rotatably mounted directly on the two bearing supports 231 of the associated receptacle 223 or 229 and is therefore rotatable rotatable relative to its inner part 218 about the longitudinal axis 215 or 216. The two bearing supports 231 of the receptacle 223 of the rubber spring element 213 are firmly connected to the machine housing 202 by screws 238; the two bearing supports 231 of the receptacle 229 of the rubber feather ententes 21 ¹ I are connected by screws 232 feet to the connection plate 227 of the support leg? .O8.

The mi. The advantages achieved by the invention are that a suitable support is achieved for all machine sizes, especially for heavy machine units that optimally applies the required restoring torque and is made up of standard parts in a simple manner and commercially available components can be created inexpensively and which requires no maintenance as well as a compact, space-separating and supporting frame or ceiling structure independent · design of the machine allows.

0044/0507

■ BÜHLER - KIA3 GabH, Praur.schveiß

2317368

Abbreviation _E i Internal no .: ΜΕ-781Ί

Date 04/9/1979 Pat / Ad / Ar

Reference
sign description Reference
sign Designation I 1 Sieving machine 26th Center distance | 2 Machine housing 3 Good enema 102 Machine housing. | 4th Distributor 108 Support leg I 5 Ascending separator 109 Fundaaient g 6th Gutau «run 110 Pipe I. 7th Good outlet 111 GuBuni spring universal joint | 3 Support legs 112 Gunai feather universal joint | 9 foundation 113 GuMsiifedereaient I 10 Square tube 114 GubmIfederelesent I 11 Guenifer universal joint 115 Longitudinal axis I. 12th GuMBi spring universal joint. 116 Longitudinal axis' I 13th Rubber spring agent 117 Outer part I 14th Guami federeleneni 118 Inside part I 15th Longitudinal axis 121) Intermediate layers I 16 123 Recording I 17th Outer part 124 Aufnabjse | 18th inner part 127 Connection plate "| 19th Drilling 128 Connection plate 'I 20th Snacks 129 Recording I 21st '' Screw bolts 130 Recording | 22nd Nuts 131 Bearing supports V | 23 recording 132 I.
Screws I 24 Aufηaha 133 '* - I
Connecting plates' I 25th Center distance 134 Cones, I.
" , .1

0300A4 / 0507

. BflHT.ER - KIAG GabH, Pr * -rnpchv · Ίς .. _g 2917368

il Abbreviation: Universal joint tüt,? bel'ns

yes Internal no .: ME-781% _Datuat 09.0%. 1979 Pat / Ad / Ar

Designation ^ J-g ^ designation

135 bearing bores _{? 3?} mother

136 washers 238 screws

^£ ] _137 ΐΊ **?! ^ ¹ -

Section 138 bearing bodies

202 machine housings 208 support leg

210 pipe

211 gummy spring universal joint

213 GuBnifedereaent

g 214 guani spring element

215 Lüngaachae

216 Lüngaachae

217 Except, part 218 inner part 220 liner 223 recording

227 Anachlufi plate 229 recording

231 camps

232 screws 233 connecting plates 234 cones

235 bearing bore

236 washer

0300A4 / 0507

Claims (1)

P ATENT CLAIMS Support for machines such as sieving machines and that are set in vibratory motion by a vibratory drive other classifying devices, conveyors, etc., which stand on several support legs, the ends of which have elastic Links are connected to the machine or the foundation, characterized, that as elastic members at the two ends of the support legs (8; io8; 2uö) rubber spring universal joints (11,12; 111,112; 211) with restoring torque are provided. (Fig. 3 to 6) Support according to claim 1, characterized, that each rubber spring universal joint (11, 12; 111,112) has two firmly connected rubber spring elements (13,14; II3,11 * 0 with crossing longitudinal axes (15,165II5, Il6), one of which (13 or lk \ 113 or bel (8; 108) and the other (13 or fy (2; 1O2) or the foundation (9; 109) is indirectly connected, the two rubber spring elements (13, 14) connected to the ends of the support leg (8; 1U8) } 113,114) are arranged offset from one another by 90 degrees with respect to their longitudinal axes (15, l6; 115,1l6) and the distance (25) between two axially parallel rubber spring elements (13; H3) is equal to the center distance (26) of the two rubber spring elements I 14; II4) offset by 90 degrees. (Fig. 3, 4, 5) Support according to claim 2, characterized, that each support leg (1U8) on a rigid tube (110) with two mountings at its ends offset by 90 degrees - Λ2 - ) with the support 113 or Illf- with the machine 030044/0507 BÜHLER-MIAG GmbH ~ '\ Z - "'' 2Λ \' υΊ. 197V Pat / Ad / Ar (ME-7814) took (129,130 ') is formed, which each take up one of the rubber spring elements (11 ^, 113) of the associated rubber spring universal joints (1X1,112) and are detachably connected to them, while the other rubber spring elements (113,11 ¹ I :) the Rubber spring universal joints (111, 112) are detachably held in a receptacle (123 or \ 2k) connected to the machine (102) or the foundation (109). (Fig. Ί, 5) 4. Support according to claim 2, characterized, that each support leg (β) is formed from a rigid square tube (10) which at each of its two ends in detachable connection a rubber spring element (13.1 * 0 des assigned rubber spring universal joint (12 or ll) receives the other rubber spring element (1Λ, 13) in a on the machine (2) or on the foundation (9) attached receptacle (23 or 24) is releasably fixed. (Fig. 3) 5. Support according to claims 2 and 3 »characterized in that that each rubber spring element (II3,1 Ik ; 213,2l4) in a known manner consists of a tubular outer part (117 (217) and an inner part (H8 {218) arranged equiaxially in this; the inner part (II8) distributed rubber intermediate layers (120) are elastically supported on one another, and that a common receptacle (123,12 * 4,129,13O} 223,229) is provided for the outer part (* 17; 217) and inner part (Il8 {2l8), which the inner part (118; 2l8) can be adjusted but held immovably and on or on which the outer part (117-217) is directly or indirectly movably mounted relative to the inner part (H8; 2l8) (Fig. 4,5,6). 6. Support according to claim b, characterized, BUHLER-MIAG GmbH ....-- W? _ · -24 Λ> 4. 1979 Pat / Ad / Ar (ME-701'i) that the inner part I1l8) longitudinally axially at both ends each has a pin (13 ^) in the receptacle (123,124,129,130) is adjustable and fixed on the a bearing body (138) axially supporting the inner part (118) is rotatably mounted and which the outer part (II7) receives positively or non-positively. (fig. ** »5) 030044/0507