DE10218213B4 - vibrator housing - Google Patents

Abstract

Vibrator housing with a central part (1) having a tubular peripheral wall (2) and on both sides arranged cup-shaped center part Closing caps (3), wherein the underside of the central part a foot element characterized in that the closure caps and the central part (1) consist of corrosion-resistant material and the peripheral wall (2) in an upper section (4) has an upper wall thickness (5) having less than a lower wall thickness (6) in a lower portion (7) is formed, wherein the wall thickness (5) from the upper portion (4) to the lower portion (7) increases continuously and the outer contour the peripheral wall (2) eccentric to the inner contour of the peripheral wall (2) is arranged.

Description

The The invention relates to a vibrator housing with a central part, the a tubular Circumferential wall and arranged on both sides of the central part cup-shaped caps has, wherein the underside of the central part of a foot element having.

A vibrator with such a housing is made, for example FR 1398 139 A known.

It There are various types of vibrators, e.g. some on containers for their emptying or shaking of machine components, e.g. Transport devices and the like, used be used to Keep bulk materials flowing. Especially in the treatment and transport of bulk goods are to use such vibrators appropriate. In some applications It is also necessary that the vibrators are perpendicular to the outer wall one to be shaken or container to be emptied to install, so that the shaking movement transferred directly to the container and the shaking process accomplished can be. For this purpose, the vibrator corresponding fastening devices on.

In the vibrator housing is for execution the shaking movement usually installed an electric motor that protrudes from both sides of the middle part Shafts at the ends of the waves arranged imbalance masses in rotation added. The imbalance masses are covered by the pot-shaped caps.

Of the Middle part of the known vibrator housing is due to the complexity of the shape, the size of the produced numbers and therefore as a result of cost reasons made of a cast material, the foot element one piece is formed on the middle part.

Problematic However, the use of such vibrator housing, for example, in the food or pharmaceutical industry. For example filling at regular intervals with cleaning fluids like acids, alkalis and sterilizing agents cleaned or sterilized. by virtue of The corrosive loading of these fluids is a corrosion protected version of the vibrator housing necessary and partly also required by law. A use of a housing Made of cast aluminum, which is a particularly low low weight is not possible in such an environment.

Out DE 16 91 830 a vibrator is known, which has a three-part housing whose central part receives the drive motor with shafts and bearings, while the lateral housing parts, which comprise the wedged on the motor shaft ends Kugelmitnehmer directly or indirectly form the eccentrically bored to the axial center outer ring.

From the DE 19 32 414 a so-called external vibrator is known, in which the housing is formed from a pipe section whose length overlaps on the bearing points of the flyweights. On the ends of the pipe section cap-like lid are clamped. In the inside of the pipe section ring grooves are pierced on both sides of the bearing points of the engine, between which bearing plate-like washers are clamped by inserted into the annular grooves spring or retaining rings.

The AT-PS 218 811 shows a vibrator housing having a thinner wall thickness above as below.

It It is therefore an object of the invention to provide a vibrator housing, on the one hand corrosion-resistant and on the other hand, a comparatively low weight having.

The Task is according to the invention with a vibrator housing solved, in which the caps and the central part of a corrosion-resistant material and the peripheral wall in an upper portion of an upper Has wall thickness, the lower than a lower wall thickness in a lower section is formed, wherein the wall thickness from the upper portion to lower section continuously increases and the outer contour of the Circumferential wall arranged eccentrically to the inner contour of the peripheral wall is.

Thereby, that all components, i. Middle part and caps, preferably made of stainless steel or plastic, in particular thermosets, The vibrator can be easily used in corrosive environments become.

Since, in particular, stainless steel has a greater specific weight compared with cast materials, the housing would be too heavy with the same dimensions. This disadvantage is offset by the advantage that stainless steel can be processed easily. By reducing the wall thickness in the upper portion of the peripheral wall compared to the wall thickness in the lower region of the housing material is saved and thus significantly reduces the weight of the housing. Another advantage is that the heavy point of the housing moves down and is thereby arranged as close as possible to the component to be excited, whereby the load on the attachment is reduced and the efficiency is increased.

The symmetrical geometry of the peripheral wall on both sides of the upper or lower section simplifies the manufacture of the middle part, which favorably from the whole, e.g. milled or turned, and favors the vibration behavior of the vibrator housing.

Preferably has the peripheral wall at its first and second axial ends, respectively a fixing rib on. On this, the caps can be screwed from the outside be.

The Fixing ribs can a circular one Contour that are concentric to the inner contour and eccentric to the outer contour can be arranged. This embodiment allows an adaptation of the fastening ribs to the diameter of the caps without the dimensions the peripheral wall to be bound.

In a particular embodiment is at the lower portion of a foot element solvable attached. It makes it possible the vibrator housing with different foot elements to provide and thus easily adapt to the mounting options on containers, Make transport facilities and the like.

For the application, that the vibrator housing can be mounted directly on a mounting plate can the foot element also a secant-like flat Include recess of the peripheral wall at its lower portion.

conveniently, the peripheral wall in the region of the foot element has a surface depression, which communicates with the interior of the middle part. In this Deepening can be a clipboard for the electrical connections be arranged.

Based The following figures illustrate the invention by way of example. there show the

1 a longitudinal section through a vibrator with vibrator housing;

2 a cross section through the vibrator housing along a line AA,

3 a cross section through the vibrator housing along a line BB.

In the 1 is a vertical section through a vibrator shown. The housing consists of a middle part 1 with a peripheral wall 2 , at the two axial ends 9 . 10 one cap each 3a . 3b is attached. Inside the vibrator housing is an electric motor 20 arranged over a shaft 21 features, which are in the interior of the caps 3a and 3b extends. On the shaft are inside the caps 3a and 3b each imbalance masses 22a , b fastened. The wave 21 is about ball bearings 23a , B and further unspecified fastening means rotatably mounted inside the housing. Further details of the electric motor 20 are not of interest for the design of the vibrator housing.

The middle part 1 is made of stainless steel, with the outer and inner contour 14 . 15 the peripheral wall was made by turning. Like in the 2 can be seen, is the inner contour 14 the peripheral wall 2 concentric with the ribs 11 . 12 and eccentric to the outer contour 15 the peripheral wall 2 arranged.

In the upper wall section 4 the peripheral wall 2 the wall thickness is lower than in the lower section 7 , The minimum wall thickness, the upper wall thickness 5 is located in the upper vertex of the middle part. The largest wall thickness, the lower wall thickness 6 is located in the lower vertex. In the 2 the largest wall thickness is marked by the dashed line.

In the middle region seen in the axial direction has the peripheral wall 2 a recess 17 with a flat surface 18 at the foot element 8th is fastened by means of screws. The foot element 8th consists essentially of a plate, which in turn also has a recess 19 which is adjacent to the recess 13 is adjusted. This recess 13 serves to accommodate a terminal board for the connections of the electric motor 20 ,

The wall thickness of the peripheral wall 2 increases continuously from the upper to the lower vertex and reaches the lower vertex outside the recesses 13 . 17 its largest wall thickness. It can also be clearly seen that the wall thickness is below the horizontal center line 16 above the recesses 13 . 17 is significantly larger than above the midline 16 , Overall, this ensures that the center of gravity of the housing in the lower region, ie in the region of the foot element 8th , is located.

In the 3 is a section along the line BB of in 1 shown vibrator housing shown. In this embodiment, another foot element 8th' on the peripheral wall 2 attached.

1

midsection

2

peripheral wall

3a, b

caps

4

upper Section peripheral wall

5

upper Wall thickness

6

lower Wall thickness

7

lower Section peripheral wall

8,8 '

foot element

9

first axial end

10

second axial end

11

first fixing rib

12

second fixing rib

13

recess

14

inner contour

15

outer contour

16

horizontal center line

17

recess

18

area

19

recess

20

electric motor

21

wave

22a, b

unbalanced mass

23a, b

ball-bearing

Claims (7)

Vibrator housing with a middle part ( 1 ) having a tubular peripheral wall ( 2 ) and arranged on both sides of the central part pot-shaped closure caps ( 3 ), wherein the underside of the middle part has a foot element, characterized in that the closure caps and the central part ( 1 ) consist of corrosion-resistant material and the peripheral wall ( 2 ) in an upper section ( 4 ) an upper wall thickness ( 5 ), which is less than a lower wall thickness ( 6 ) in a lower section ( 7 ), wherein the wall thickness ( 5 ) from the upper section ( 4 ) to the lower section ( 7 ) continuously increases and the outer contour of the peripheral wall ( 2 ) eccentric to the inner contour of the peripheral wall ( 2 ) is arranged. vibrator housing according to claim 1, characterized in that the corrosion-resistant material made of stainless steel or plastic, in particular thermosets exists. Vibrator housing according to one of claims 1 or 2, characterized in that the peripheral wall ( 2 ) at its two axial ends ( 9 . 10 ) each have a fastening rib ( 11 . 12 ) having. Vibrator housing according to claim 3, characterized in that the fixing rib ( 11 . 12 ) has a circular outer contour. Vibrator housing according to claim 3 or 4, characterized in that the outer contour of the fixing rib ( 11 . 12 ) concentric with the inner office ( 14 ) of the peripheral wall ( 2 ) runs. Vibrator housing according to claim 1 to 5, characterized in that at the middle part ( 1 ) the foot element ( 8th . 8th' ) is releasably attached. Vibrator housing according to one of claims 1 to 6, characterized in that the peripheral wall ( 2 ) in the area of the foot element ( 8th . 8th' ) a flat depression ( 13 ) having.