DE1919164A1 - Rake cleaner for rakes of sewage systems or the like. - Google Patents

Description

Pafenicr.λ. '! T

Kar! A. ί3. * Ο s ■ -

Wiencciir.ifWin · - ■■■ ·.-O. / Wf si
1 / MÜ Munich-Pullach, 1.4. April 1969

Albert Bahr, 6683 Elversberg / Saar, Parallelstrasse 2a

Rake cleaners for rakes in sewage systems or the like

The invention relates to a rake cleaner for rakes from sewage systems or similar.

In the previously known devices of this type, the slide bars inclined in the direction of flow of the sewage, rigid in the inflow channel installed, with a rake passing the screened material from bottom to top past the rake bars grazingly excavates. The excavated screenings are then automatically stripped from the rake above the channel. The operation the rake is usually done by means of a hoist winch over wire ropes, or by means of articulated chains, or by means of toothed wheels, which move up and down on a rifle.

The disadvantage of these known rakes was especially the heavy one Construction of the supporting structure and the construction effort for guiding and moving the rake with numerous bearing points was complicated and prone to failure. There are also rake designs known in which the rake by a circular motion the slide rule is cleaned. Here the rake is rigidly attached to a circling arm, which makes it necessary to to form the rake & e curved in a circle. So here is

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a very expensive special design of the slide bars required.

The invention has set itself the task of eliminating the disadvantages of the known rake cleaners and a rake cleaner to create, which is characterized by a particularly simple structure and a good cleaning effect. In particular, should In the rake according to the invention, there is also a good dropping of the goods in which the goods are accumulated on one side of the receptacle is avoided.

To solve this problem, the invention relates to a rake cleaner for rake of sewage systems or the like, in which the cleaning of the rake by means of an in a joint pendulum suspended rake takes place and consists essentially * borrowed in the fact that the hinge point of the rake is guided in a circular path.

With the rake according to the invention, the rake can particularly advantageously swing freely on an arm that is movable in a circular path be hung up. In the rake according to the invention, the bearing structure can be kept much lighter and simpler and special tours with the associated camps for the Rake can be dispensed with and the freely suspended, Rake can only be guided by its support on the slide rule.

A particularly favorable further development and embodiment of the invention can be created in that the rake Wicht only swinging freely, but also suspended so that it can move in height. This results in particular advantages in terms of cleaning of the bottom of the gutter, which will be explained in more detail below.

The front end of the rake bars is conveniently close to one another

arranged on the circular path of the rake in order to achieve the best possible free swinging of the rake when the goods are delivered » Appropriately, a scraper can be arranged in the path of movement of the rake, the front edge of which on the The bottom of the rake rests, which is expediently curved upwards. The scraper itself can be swiveled appropriately arranged and provided in its range of motion with a spring damping its backward movement. A fully automatic one Cleaning can be achieved according to the invention in that the bendable arm in the circular path of a motor, the via electrical contact contacts arranged in the channel in Depending on the stagnation in the channel is controllable.

Further advantageous details of the invention can be seen from the drawing.

It shows:

Fig. 1 shows a computer system according to the invention in the O position the rake,

Fig. 2 shows the same system with the rake in the clearing position,

3 shows an end view of FIG. 1 in the direction of flow,

4 shows a section along the line IV-IV of the figure 1 and

5 shows the system according to FIG. 1 in a top view.

In the channel of the sewer 1, a rigidly built-in rake 2 is arranged in the drawing, behind which, according to the invention, a receptacle 3 for the material to be stripped is arranged in the channel itself, which is removable and takes up very little space in this arrangement. To clean the rake 2, a cleaning rake h _{t is used,} which pendulates freely on arms attached to a shaft 5

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is hung. The joint 14 of the rake 4 is as shown in the drawing can be seen, guided vertically in an elongated hole of the arm 6. The shaft 5 is in one by means of two ball bearings The supporting structure 7 is shifted over the channel of the sewer 1. A gear motor 8 with a pinion 9 acts on the shaft 5 keyed gear 10.

Behind the bar grating of the rake 2 is a curved scraper plate 11 swivels over the channel or over the collecting container 3 stored in cash. With 12 is a tension and damping spring of the wiper plate 11 designated.

In the O position according to Figure 1, the rake 4 hangs above the maximum water level. When the rake cleaner by the drive motor 8 is put into operation, the rake 4 descends in the water and its leading edge lies at the lowest point of the slide rule, thus ensuring a flat scraping curve. The rotating arms 6 move continuously and pull the rake, which is on its support edge and corresponding Finger notches 13 on the rake bars lead past them in the direction of inclination of the rake, the rake of the washed up Screenings in the air. The upper end point of the rake 2 lies close to the circular path of the hinge point 14 of the rake 4 at the ends of the arms 6 and the rake has such a position here, that its own weight allows it to swing forward, causing the rake to swing over the receptacle and empty itself. The rake is equipped with a sunk base 15, which is is arched at the top.

If the rake 4 not only free commute with its hinge point 14 in a slot 16 Λ ^ is mounted but also höhenbew ^ Lich, the rake of the channel, after the immersion in the water on the floor are placed before it reaches the rake. 2

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As the arms 6 move further, the rake 4 grinds with the Front edge of your base plate over the bottom of the channel in front of the rake 2. This results in an additional benefit of a Cleaning the floor before raking 2. This is very desirable, because this is where pests are always deposited. By choosing the length of the elongated hole, the size of the cleaning path can be influenced at the bottom of the channel and a flat slope of the rake can be achieved.

In the further course of the upward movement of the rake H , the scraper 11 lies on the bottom of the rake and automatically strips off the screenings still lying on the bottom plate of the rake as a result of the backward movement of the rake that now begins. The material falls into the receptacle and the scraper plate by its own weight after being released by the rake back into the starting position, this movement being braked by the spring 12, which also increases the pressure of the scraper plate on the floor 15 during the stripping process. The rotary arms of the rake continue to rotate until the zero position is reached again and switch off the rotary movement by means of an electrical contact.

The trash rack cleaner is advantageous automatically by means of in the channel of the sewer 1 arranged electrical contact contacts activated when the water level reaches a certain height in front of the rake. By during a period of operation If the rake is soiled, a jam occurs in front of the rake and the resulting difference in level occurs in front of the rake and after the rake, the aforementioned electrical contacts are used to start up the rake. In this way, one can do one automatically with very little effort operated cleaning of a rake can be achieved.

A special feature of the invention is, among other things,

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that all storage points of the cleaning device are always outside the wastewater.

All shown in the drawing and in the description The details explained are of importance for the invention.

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Claims (1)

Claims 1. Rake cleaner for rakes in waste water systems or the like, in which the rake is cleaned by means of a rake suspended in a hinge, characterized in that the pivot point (14) of the rake (H ) is guided in a circular path . 2 · Rechenniniger according to claim 1, characterized in that the rake ⁽¹ O 1st suspended freely suspended from in a circular path movable arms (6) · 3. Rake cleaner according to claim 1 or 2 _P core «is worth the fact that the rake (4) pendulums freely and is movably suspended in the booth. Trash rack cleaner according to one or more of the preceding claims, characterized in that the steering axis (1 * 0 of the rake (4) is slidably guided in an elongated hole (16) of the arm (6). 5 · Trash rack cleaner according to claim 1 to 4, characterized in that that the upper end of the rule (2) runs close to the Xrelsbahn of the arms (6) 6 «Calculation purity according to one or more of the preceding an · Proverbs, rewarded by the fact that behind the rake (2) In the bty "Kungsb & fcn d" r rake (4) "in scraper (11);" arranges is. 7 · References according to one or more of the preceding Claims, thereby gekennxelch.net that dl «Hark« (Ί) an lower end "old a vaulted bottom (15) t «t 1st. BADOR ₁ QiNAL 009847 / U21 -S- ΰ · Arithmetic purity & er naoh one or more of the preceding Claims, characterized in that the front edge of the scraper (11) rests on the bottom (15) of the rake during the scraping process. 9 · Hechenrelniger according to one or more of the preceding Claims, characterized in that the scraper (11) pivotable 1st. 10. Truss cleaner like one or more of the previous ones Speech, characterized in that one of the Räokbewegungunß of the stripper »(11) damping spring (12) arranged. 11 · Truss cleaner according to one or more of the preceding Claims, characterized in that the receptacle O) arranged within the channel (1) 12 · Truss cleaner according to one or more of the preceding Claims, characterized in that the arms (6) movable in the circular path are driven by a »motor (8), the over Electrical contact contacts arranged in the channel can be controlled depending on the congestion in the channel ORIGINAL. 0098A7 / U2