JPS58210807A - Sliding device for scraper - Google Patents

Abstract

PURPOSE:To reduce weight and turning resistance and to improve corrosion resistance by fitting a sliding shoe to a bracket with consists of an extrusion- molded synthetic resin and is projected with supporting ridges. CONSTITUTION:A bracket 15 bent to an L shape is fitted to the front and bottom surfaces of the scraper plate 4 of a sliding device. The bracket 15 is constituted of an extrusion-molded synthetic resin having water resistance and plastic elasticity, and is projected with supporting ridges 16 along both sides thereof. Ridges 16A provided with a curved surface in each corner are coverhung from the side surfaces of the ridges 16. A sliding shoe 17 is fitted to the ridges 16, and holding ridges 18 to be interposed between the ridges 16 are projected on the top surface thereof. Ridges 18A to be fitted tightly to the ridges 16A are overhung from the side surfaces of the ridges 18. An extrusion molded synthetic resin material having water resistance and plastic elasticity is used for the shoe 17. The bracket 15 is thus resistant to water and corrosion, has high accuracy and light weight and permits the fitting of the shoe 17 in the exact position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for raking sediment and floating matter installed in a pond into which sewage and wastewater are introduced, and particularly to a sliding device that is attached to a raking plate and slides on a support rail.

A general device for collecting sediment and floating matter from a pond into which sewage or wastewater is introduced will be explained with reference to Figure 1.2.

Wheels 2 are rotatably supported and provided symmetrically on both sides of the introduction pond 1 near the bottom and near the water surface at the front and rear (horizontal direction in FIG. 1), respectively. A pair of endlessly connected chains 3t' are suspended over the eel 2 so as to circulate near the pond bottom and just below the water surface.
3-1 is equipped with a plurality of scraping plates 4 at equal intervals. Further, a pond bottom rail 5, a horizontal rail 6, and a tail rail 7 are provided at the bottom of the introduction pond 1, near just below the water surface, and between the wheel 2 on the tail side (left side in FIG. 1), respectively. These rails 5,6,7 slidably support the scraper 4 attached to the check 73 via a sliding device 8, which will be described later.

Next, a conventional sliding device 8 will be explained with reference to FIGS. 3 to 8.

The sliding device 8 consists of a bracket 9 made of metal having a cross-sectional shape and relatively high rigidity as shown in FIG. It is fixed to the scraper plate 4 by means such as the following. A bolt seat 10 is placed at the front end of the bracket 9 (on the conveying direction side of the scraper plate 4) so as to face the rail.
Provided with a bulge. Further, on the surface of the bracket 9 facing the rail, a dovetail groove 11 is formed which widens in the direction in which the scraper plate 4 is conveyed. A metal sliding shaft 13 having a dovetail ridge 12 to be fitted into this dovetail groove 11
Insert. Furthermore, a fixing bolt 1 is attached to the bolt seat 1o.
4 is screwed into engagement with the front end (left end in FIG. 5) of the sliding shaft 13 to prevent the sliding shaft 13 from being pulled out to the left in FIG. In addition, except for the fixed shaft 14, the sliding shaft 13 can be removed. Thus, the sliding shaft 13 contacts the rail 5.6.7, supports the scraper plate 4 which rotates together with the chino 3, and slides on the rail 5.6.7.

However, since the conventional bracket 9 is formed by casting metal, it cannot be solidified due to the large temperature difference between the temperature of molten metal and room temperature, no matter how precisely the mold is formed. The molded casting has shrinkage deformation and distortion, and the fitting with the sliding shaft 13 is unstable, making it difficult to assemble the sliding shaft 13 in a fixed position. Furthermore, the bracket 9 itself has disadvantages such as being heavy and corroding in sewage and wastewater.

SUMMARY OF THE INVENTION In view of the above drawbacks, it is an object of the present invention to provide a sliding device having a bracket that is lighter in weight, more precise, and more corrosion resistant than conventional sliding devices.

This invention is for a raking machine in which a bracket is fixed to a raking plate provided on a cheno that rotates between the water surface and the bottom of an introduction pond, and a sliding shaft is attached to the bracket to slide on a support rail. In the sliding device, the bracket is molded from a synthetic resin material having water-resistant plastic elasticity, and a plurality of support shafts are protruded from a surface facing the support rail, and a holding period is provided between the support groups. It is characterized by a fitted shaft.

The structure of this invention will be explained with reference to drawings of embodiments.

Figures 9 and 10 are a front view and a side sectional view showing an embodiment of the present invention. In Figures 9 and 10, an L-shaped bracket 15 is attached to the front surface of the scraper plate 4 in close contact with its upper or lower surface (close to the lower surface in Figure 10), and is attached to the scraper plate by fastening means such as bolts. It sticks to 4. This bracket 15 is made of extruded synthetic resin material having water-resistant plastic elasticity, and has support stems 16 protruding along both sides of the surface facing the rail 5.6.7. A ridge 16A with a curved surface is bulged out from the fillet. The sliding shaft 17 is mounted opposite to the surface of the bracket 15 that faces the rail.
A holding part 18 is provided on the upper surface of the holding part 18 to interpose between the support stems 16, and a ridge 18A which fits closely with the ridge 16A is bulged out on the side surface of the holding part 18, and is attached to the base fillet of the ridge 18A. A curved surface is attached to the lower surface of the sliding shaft 17, and a rail 5.
A guide flange 19 is provided to protrude so as to engage with 6.7. The sliding shaft 17 is preferably formed by extruding a synthetic resin material having water resistance and plastic elasticity.

The operation of the above configuration will be explained.

Extruded Platinum 15 is highly water resistant, highly precise, lightweight and corrosion resistant.

Therefore, the fitting position of the sliding shaft 17 is made accurate, and the rotational load of the chino is reduced. Moreover, the support trunk 16 and its ridges 16A are
When the sliding shaft 17 is held, it engages accurately with the ridge 18A of the sliding shaft 18, ensuring that the sliding shaft 17 is held securely. Providing a wide taper makes it easy to fit the sliding shaft 17 and prevents it from coming off due to the wedge action.

As explained above, this invention is made of extruded synthetic resin material, and the sliding shaft is fitted to a bracket with a protruding support shaft, which reduces weight and reduces rotational resistance. Accuracy is also improved, allowing for accurate mounting of the sliding shaft, and furthermore, it has excellent corrosion resistance against corrosion caused by water and wastewater.

[Brief explanation of drawings]

Fig. 1 is a side view showing an example of a raking machine, Fig. 2 is a view taken along the line A-A in Fig. 1, and Fig. 3 is a front view of a conventional bracket.
Fig. 4 is a bottom view of Fig. 3, Fig. 5 is a sectional view taken along line B-B of Fig. 3, Fig. 6 is a rear view of the conventional sliding shaft, and Fig. 7 is a plan view of Fig. 6. 8 is a sectional view taken along the line C-C in FIG. 7, FIG. 9 is a front view showing an embodiment of the present invention, and FIG. 10 is a sectional view taken along the line D-D in FIG. 9.
0 1: Introduction source, 2: Wheel, 3: Che 7. 4: Scraping plate, 5
．． 6.7: Rail, 15 nib bracket, 16: Support ridge,
16A: ridges, 17: sliding shoes, 18: retention group, 18A: ridges agent patent attorney Takashi Honma Figure 1O Figure q

Claims (1)

[Claims] A sliding device for a raking machine in which a bracket is fixed to a raking plate provided on a check 7 that rotates between the water surface in the introduction pond and the pond bottom, and sliding shoes are attached to the bracket to slide on a support rail. The bracket is molded from a synthetic resin material having water-resistant plastic elasticity, and a plurality of support ridges are provided protrudingly on the surface facing the support rail, and the slide has a holding group between the support stems. A sliding device for a raking machine, characterized in that running shoes are fitted.