DE1904979A1 - Trash rack cleaner made from articulated cleaning trolley and cleaning rake - Google Patents

Description

"Tray cleaner based on an articulated cleaning trolley and cleaning rake" The invention relates to a rake cleaner from articulated connected cleaning trolley and cleaning rake. Such rake cleaners are used for Purification of rakes built into water streams and run the am Rake precipitated contaminants out of the water. As in such pollutants Bulky goods are included, the trash rack cleaner must be equipped with overload protection devices be equipped. This means that the unity of cleaning rake and cleaning trolley is already in place at an early stage according to their function and both parts articulated, connected to one another. Of the The detergent trolley thus guides the detergent rake down and up the detergent rake v is led to or away from the screen grate by special devices. Especially with the rake cleaners that are positively controlled by guideways, the articulated attachment fixed with a spring load, making the cleaner rake Swivel out of its normal position in relation to the cleaning trolley in certain cases of stress can.

These versions work in any case so that cleaner rake and Cleaner trolleys e.g. in the case of jamming of computerized goods and blocking of common ones Upward movement can be practically held at the location of the obstacle. By stop the drive in the direction of the screen, a deflection of the Cleaner rake forced perpendicular to the screen grid. This movement must be perpendicular to the screen grate Overcome the friction opposite to this movement and is based on experience in most cases so hindered that the overload protection of the motor prematurely appeals to. The rake cleaner stops at the point of the obstacle, and the obstacle is not removed.

Even if these difficulties are reduced by a precise design system, it is not possible to completely surround them.

The invention is therefore based on the object. a nonchanical one Movement of the cleaning rake perpendicular to the screen grate in the event of an overload.

This object is achieved according to the inventive concept so that the Trolley cleaner rollers on both the cleaner trolley and the cleaner rake are distributed. This creates a new kind of articulated system that has been used previously can execute unreachable swivel movements. The two articulated As before, parts are fixed to one another by spring loading, and their size is advantageous can be changed easily.

If certain geometrical conditions for the introduction of the driving force are maintained, the rake can move due to the driving force itself run perpendicular to the screen grate; as soon as the rake cleaner due to overload is stopped in its upward movement.

The invention is shown for example in the drawing.

namely, Fig. 1 show rake cleaner from the side with pinion drive under normal load, Fig. 2 the same under overload; Fig. 3 trash rack cleaner from the side with rope drive and under overload; Fig. 4 Trash rack cleaner from the side with chain drive and under overload. -In Fig. 1 are two guideways (1) and (2) shows in which the rake cleaner circulates. The cleaning trolley (3) will driven by a drive unit (4) via a drive pinion (5). The drive pinion and the trolley roller (6) are mounted on the same axis. The cleaning trolley is via the joint (7) and via the spring-loaded connection (8) with the cleaning rake (9) connected. The rake roller (10) is attached to the cleaner rake, which in the guide track (2) runs up and down, while the carriage roller (6) in the Guideways (1) and (2) revolve. The drive pinion engages in the headstock (11) a. In addition, switching elements (12) and (13) are arranged in a known manner so that that in the event of an articulated movement of the rake cleaner, i.e. in the event of an overload, in Intervene and give a control impulse.

In Fig. 1 you can see how the drive pinion when rotating in the direction of the arrow guides the rake cleaner upwards and the cleaning rake along the rake grate (15) leaves.

In Fig. 2 it can be seen that when the outward travel is reduced and if the direction of rotation of the pinion continues, necessarily the torque present as a reaction moment (14) a pivoting movement of the common joint in the opposite one Brings about sense of rotation. This changes the spatial days of the cleaning rake. The rake roller (10) can in the guide way (2) um.ein appropriate dimension run upstairs. the switching elements - (12) and (13) come into engagement and the cleaner rake itself is moved away from the screen grid in the desired manner.

In Fig. 3, this system is shown with a rake cleaner Rope drive. As usual, this rake cleaner is attached to a rope and tether (16) moved up and down. The normal control of the cleaning rake in this Up and down travel is retained compared to the known system, i.e. the a roller is activated by switch control when moving up and down guided in separate guide tracks. Here too, the overload generated by the Rake cleaner acting tensile force a torque on the cleaner rake, which this swings away from the screen grate.

In Fig. 4 is a corresponding joint system for a rake cleaner shown with chain drive. In this case, the control movement becomes the cleaner rake at normal load through the circumferential rescue and the associated geometric Game causes. Here, too, a moment occurs when the chain hoist is overloaded, which swings the rake away from the grate.

The execution of a rake cleaner according to the invention has not only the desired mechanical movement of the cleaning rake perpendicular to the screen grate result, but also a switchover of the drive power for this movement self.

While with the usual designs the drive power is only indirect and was available via frictional engagement, the drive power itself is here exploited. In this way, therefore, a use of positively controlled trash rack cleaners is now also possible where previously only non-force controlled trash rack cleaners were used could. For these cases, a separate control rope was necessary on the cleaner rake, which caused the swivel movement of the cleaning rake itself. This pivoting movement is now initiated automatically and automatically with every occurring malfunction. For reasons of a safe cleaning process, you can choose the spring preload freely choose the overload case.

The advantage of the new design is for the movement game the rake the new suspension for carrying. While so far the rake around the common If the pivot point is pivoted out, this pivot point pivots in the new type of rack cleaner at Overload itself off. The rake roller must be the actual center of the rotary movement (10) apply. This allows the rake to move with otherwise the same geometric conditions Remove further from the screen grate than before.

Claims (3)

Expectations 1. Tray cleaner made of an articulated cleaning trolley and cleaning rake, This is known because the cleaning trolley and cleaning rake each have an axle with rollers own. 2. Trash rack cleaner according to claim 1, characterized in that the Reaction torque of the drive and the pressure torque of the cleaning rake on the screen grate have opposite directions of rotation, the reaction torque of the drive on the Cleaner rake is transferred either directly or via the cleaner trolley and where the contact pressure of the cleaning rake on the rake due to weight load, Spring load or the like is generated. 3. rake cleaner according to claim 1 and 2, characterized in that Switching elements are attached to the cleaner carriage and the cleaner rake, the come into engagement with the movement of the joint. L e r s e i t e