JPS5934586Y2 - dust remover - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust remover that has a low machine height and is designed to ensure that scraped screen residue falls to a discharge device.

That is, in the present invention, a guide shaft is fitted to the upper end of a rake arm for controlling the attitude of the rake arm into a guide groove of a guide frame provided along the side surface of the screen, and this rake arm is provided in a rake lifting frame so as to be swingable. The rake elevating frame is provided with a drive pinion for raising and lowering the rake, and the gad frame equipped with the guide groove is curved toward the scraping side above the waterway. The explanation will be based on.

In the figure, 1 is a screen installed to block the waterway, and a rake device is placed above the waterway to move up and down along this screen 1 and to scrape up and discharge the screen dregs captured by the screen.

This rake device is installed on Sukhnon 1 as shown in detail in the drawing.
A guide frame 2 is provided on both sides or one side of the waterway to regulate the rise and fall of the rake along the inner side of the waterway and from the side of the screen to above the screen. state,
The guide frame 2 has an L-shaped bent shape with the upper side curved downward, and three guide grooves a, l) and c are integrally formed on the inner surface of the guide frame 2 along the shape of the guide frame.

This guide frame 2 is supported by a frame F installed on the waterway.

Further, the guide grooves a and b are shaped like flat loops and are shaped to slightly protrude from the continuous part of the ribbed groove a and the guide groove, and the guide groove C is approximately parallel to a and l). It is formed in an L-shape above the guide groove a.

Reference numeral 3 in the figure is a rake elevating frame, and the rake elevating frame 3 has two parallel shafts, namely a guide shaft 4 and a drive shaft 5 arranged in the horizontal direction, and a guide shaft 6 at both ends of the two shafts.
. A pinion 9 (or sprocket wheel) provided on the frame 3 is driven by the drive motor 8.

This pinion 9 is meshed with a pin rack 10 (including a chain rack, etc.) provided along the guide groove in the guide frame, and the pinion 9 meshed with the pin rack 10 is driven by the driving of the drive motor 8, and the rake elevating frame 3 The robot moves up and down along a guide frame.

The rake lifting frame 3 is also provided with a rake arm 11 that is swingable about a drive shaft or other shaft, and a rake 12 is provided at the lower end of this rake arm 11, and a guide shaft 13 is provided at the upper end of the rake arm 11, and the guide shaft 13 is provided as a guide. It is fitted into the groove C and supported.

In the dust remover constructed as described above, when the drive motor is driven, the pinion is driven, and the rake elevating frame is raised and lowered by the pin rack engaged with the pinion, and the rake shakes up the screen scum, which is connected to the upper end of the sufnon. The water is discharged through a slightly curved guide plate G to a discharge device S installed on the waterway.

That is, when the rake rises along the screen, the guide shaft 6 is fitted and supported in the guide groove a, and the guide shaft 7 is fitted and supported in the guide groove.
will rise.

At this time, the screen scraps are scraped up by a rake and discharged through a guide plate.

When the rake reaches a predetermined maximum valve point, the pinion moves from the lower surface of the pin rack to the upper surface of the pin rack at the end of the pin rack located between the guide grooves a and 1), and is engaged with the rack.

As a result, the guide shaft 7 moves from the guide groove to the guide groove d via the curved guide groove d, and both guide wheels 6 and 7 are fitted and supported in the same guide groove a.

As a result, the rake arm swings by the amount of displacement of this rake elevating frame, and the rake separates from the screen surface.

When the pinion is further driven in this state, the rake elevating frame descends while being engaged with the pin rack.

When the lowest point is reached, the guide shaft 7 moves from the guide groove a to the guide groove b, the rake arm swings back to its original state, that is, the rake touches the screen, and the rake lifting frame rises again. It is repeated once or twice or more.

Further, a guide shaft R may be provided protruding from the lower end of the rake arm.

Furthermore, it is also possible to omit the guide shaft 13 and guide the rake arm along the screen.

Furthermore, the embodiment shown in FIG. 4 is a different embodiment, and the rake can also be moved up and down by switching the positions of the drive shaft 5 and the guide shaft 4.

Since the present invention has the above-mentioned configuration, it is possible to lower the height of the machine and reliably discharge the raked screen scum, and it is also possible to properly hold the raked screen scum by converting the raking force into the own weight of the rake arm. Even when a large force is applied, the rake swings in a direction to release the excessive force, so it has the advantage of being able to prevent overload.

[Brief explanation of the drawing]

FIG. 1 is a front view, FIG. 2 is a side view of essential parts, FIG. 3 is a sectional view, and FIG. 4 is a diagram of a different embodiment. 1... Screen, 2... Guide frame, 3... Rake lifting frame, 4...
...Guide shaft, 5...Drive shaft, 6,7.13.
...Guide shaft, 8...Drive motor, 9.
...Pinion, 10 ...Pin rack, 1
1...Rake arm, 12...Rake, G...Guide plate, S...Discharge device,
a, b, c, d...Guide groove, L...
Rake device.

Claims (1)

[Scope of utility model registration request] a guide groove provided along the side surface of the screen and having an upper portion curved toward the downstream side of the waterway in the form of an endless flat loop to guide the rake lifting frame;
Adjacent to the outside of this guide groove is a guide groove into which a guide shaft protruding from the upper end of the rake arm is fitted to control the attitude of the rake arm, and this rake arm is swingably provided on the rake elevating frame to allow the rake to rise and lower. The frame is engaged with a pin rack provided on the guide frame,
This dust remover is provided with a drive pinion for raising and lowering the rake, and has a guide frame provided with the guide grooves bent toward the scraping side above the waterway above the screen to lower the machine height.