JPS60250113A - Grid type dust cleaner with rake - Google Patents

Abstract

PURPOSE:To ease the competitive action of a rake and a grid as well as prevent the imperfect raking operations of the inverter of a rake by providing an expansive device and a pinion to an arm fitted with a rake and also rack to be engaged with the pinion in parallel with the grid. CONSTITUTION:When a chain 9 is turned counterclockwise, a rack 20 is engaged with a pinion 25, and a rake 17 is vertically moved under the guidance of the rack 20. When the rake 17 is lowered, it is separated from the grid 2, and also when the rake 17 is raised, it is run in a creeping manner on the face of the grid 2. In the lowest position where the rake 17 is inversed from the lowering process to the raising process, a curved rack 21 close to the grid 2 allows the grid 2 to run on the track of the rake 17, as shown by arrow F, from the lowest position. An expansive device 28 comes to pressingly contact with the rake 17 regulatively according to the amounts of the residue to be raked up.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lattice-type dust remover installed in a waterway, and more particularly to a device for scraping off debris stuck to the lattice. This will be explained using Figure 2. A lattice 2 that crosses a waterway 1 so as to partition the upstream side and the downstream side thereof is fixed via a frame 3.

Above this grid 2, a case 4 is provided that straddles the waterway 1,
A transmission shaft 5 is arranged in the upper part of the case 4, and a pair of take-up devices W16.6) are provided on both sides of the r-s 4, on which both ends of the transmission shaft 5 are rotatably supported. This take-up device 6
．． Each of upper chain wheels 7 and 7 is rotatably supported on 6,
A pair of lower chain wheels 8, 8 are rotatably supported on opposite sides of the water channel 10, and the shaft bearing surfaces of the chain wheels 7.7 and 8.8 are parallel to the grid 2, and these A pair of chains 9.9 are rotatably wrapped around the chain wheel. On both sides of the case 40, two opposing guide rails 10.10 are provided parallel to the grid 2. Both ends of the upper part of the rectangular primary arm frame 11 are rotatably connected to the chain 9.9, and the lower part of the secondary arm frame 11 is rotated with the upper part of the secondary arm frame 13 via a pair of gear boxes 12. Connect freely. - At both ends of the lower part of the secondary arm frame 11 and at both ends of the upper part of the secondary arm frame 15, guide rollers 14 that run within the guide rail 1D are rotatably provided. Gear 15 fixed to the lower piece of arm frame 11
and teeth 16 fixed to the upper part of the secondary arm frame 13 are provided in mesh with each other.The lower part of the secondary arm frame 13 has a rake 17 in which the blades facing the grid 2 are arranged in a comb shape. An apron 18 is provided on the upper extension of the grid 2 to be formed, and the upper end of this apron 18 is placed facing above the conveyor 19 on the ground.□ When the chain 9 of this device is rotated in the clockwise direction B, The gear box 12 moves up and down along the guide rail 1o.

The gearbox 12 is in its downward stroke, and the gearbox 17 is the grid 2.
When the gear box 12 descends on a course away from the screen and moves upward, the rake 17 moves the grating 2 and scrapes up the sieve residue.

However, in this device, when the rake 17 reverses at the lower end, it makes a detour as shown by curve C in FIG. 2, so that unscavenged material accumulates on the upstream side of the grid 2, increasing the raking resistance. In addition, there were other drawbacks such as the difference in elongation between the left and right chains 9, the skewing of the rake 17, and the competition between the rake 17 and the grid 2, which caused damage. Therefore, it is an object of the present invention to provide a grate raking device that alleviates scraping at the rake reversal section and the competition between the rake and the lattice.

The purpose of this invention is to curve the lower end of the guide rail of the arm that connects the rake and the chain toward the lattice, and to mesh the running part of the arm with the guide rail so that the left and right sides of the rake are in sync, and to connect the rake and the lattice. A bullet was inserted in the arm to alleviate the competition between the rake and the rake, so that the lower end of the rake was always facing the grating.

The configuration of this invention will be explained based on drawings of embodiments. FIG. 3 shows the front view of this embodiment developed, FIG. 4 shows the arrow direction D-D in FIG. 5, and FIG. 5 shows details of the ammunition device.
Components that are common to the prior art are designated by the same reference numerals as in FIG. 1.2, and their description will be omitted. There are lattices 2 on both sides of the case 40.
A pair of racks 20.20 parallel to the racks 20.20 are symmetrically provided, and a downwardly curved portion 21.21 is formed at the lower end of the rack 20.20. - Both ends of a connecting frame 22 are rotatably fitted to the twin chains 9, 9, one end of a pair of primary arms 23. A gear shaft 24 is provided rotatably through the gear shaft 24 near the free end, and twin no pinions 25, 25 are fixed to both ends of the gear shaft 24 to mesh with the latch 20, 20. - A bullet shaft 26 is fixed to the free end of the secondary arm 23.25, and a pair of deformed star shapes 27, 27 are fixed to this bullet shaft 26. The deformed star shape 27,
Ammunition boxes 28, 28 are fitted onto 27, and the deformed star-shaped 27,
An elastic body 29 is filled between 27 and the ammunition boxes 28, 28. A secondary arm 30.30 is protruded from the ammunition boxes 28, 28, and a rake 17 is connected and fixed to the tip of the secondary arm 30.30. At the free end of the secondary arm 25° 25, the secondary arm so
, constituted by protruding regulating pieces 31.3j facing so.
9 to form an ammunition device.The operation of the above structure will be explained next.

When the chain 9 is rotated in the counterclockwise direction in FIG.
At the bottom where the rake 17 reverses from the downward stroke to the upward stroke, the rack 21 curved to approach the grating 2 moves the trajectory of the rake 17 from the bottom to the grating 2 in the direction of arrow F. make elders The rack 20.2j and the pinion 25 regulate the different phases on the left and right sides, and smoothly control the penetration of the rake 17 into the grating 2 even if the guide surface is curved. The bomb devices 26, 27, 28, 29 press the rake 17 in an adjustable manner depending on the amount of sieve residue to be scraped up.

As explained above, this invention provides a bullet device and a pinion on the arm to which the rake is fixed, and a rack that engages with the pinion is provided in parallel to the grid, so that the interval between the rake and the grid can be adjusted according to the amount of sieve residue. This eliminates the conflict between the rake and the grid, allowing the rake to come into even pressure contact with the sieve residue, resulting in smooth aging.Also, by curving the lower end of the rack,
The grating is scraped from the reversed position of the rake to eliminate any leftover parts at the bottom.

[Brief explanation of the drawing]

Figure 1 is a front exploded view of a conventional sieve residue scraper, and Figure 2 is a
A-A arrow view in the figure, FIG. 3 is a front development view of the embodiment of the present application,
Figure 4 is a view from the D-D arrow in Figure 3, and Figure 5 is a detailed view of the ammunition device. 1: Waterway, 2: Grating - 9: Chain, 17: Rake, 20 Nirakku, 2 Ronnie Secondary arm, 24: Gear shaft, 25: Binion, 26.27.2B, 29: Bullet device, 30: Secondary arm. Agent Patent Attorney Takaishi Tachibana Ma, Figure 1, Figure 20, 3

Claims (1)

[Claims] In a grid-type dust remover, a guide is provided parallel to a grid that crosses a waterway, and an arm with a rake fixed to this guide is provided so that it can be raised and lowered freely.A guide rack is provided parallel to the grid, and a pinion that meshes with this rack is attached to a gear shaft. A pair of primary arms are connected to a chain fixedly attached to the grid and rotatably provided above both sides of the lattice, and a pair of primary arms is rotatably passed through the gear shaft through the secondary arm, and a secondary arm is connected to the chain via an elastic device. A lattice-type dust remover with a rake, characterized in that the arms are connected, a rake is fixed to the secondary arm, and the lower end of the rack is curved downward.