JPS6019836A - Traveling type deposited sand raking-up machine - Google Patents

Abstract

PURPOSE:To permit the use of a traveling type deposited sand raking machine in sand basin with reinforcing beams by a method in which an endless chain attached with many buckets is run along a sand discharge frame, a lower parallel quadrilateral link, and a raking-up frame provided to a truck attached to a traveling base. CONSTITUTION:A traveling base 5 with a truck 10 is moved to a raking point of deposited sand, an expandible part 19 is extended, an upper front hang lever 11a is inclined to nearly vertical angle, a lower front hang lever 15a is inclined toward the opposite direction in such a way that upper and lower parallel quadrilateral links (a) and (b) are both extended vertically and a raking frame 17 is lowered to the raking position. A motor 25 is actuated, and an endless chain 34 is run to the direction of arrow through guide wheels 27-32 by a drive wheel 26. During the period when buckets 33 attached to the chain 34 are passed through the guide wheels 30 and 31, deposited sand is raked and discharged through a sand discharger 23 and a conveyer 24 to the outside by reversely turning the buckets when passing through the wheel 26.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a traveling type sand-sludge lifter for lifting sand from a sand-settling basin of a sewage treatment facility.

The settling basins used in comparatively large sewage treatment facilities usually have multiple square-shaped settling basins, and a single sand machine is moved vertically and horizontally to remove the settled sand. I am trying to drain it.

Conventionally, in this type of sand-settling and scraping machine, a packet conveyor is swingably mounted on a traveling truck, and the work is carried out by raising and lowering the packet conveyor for each sand-settling basin.

By the way, recently, in order to increase the size of the settling basin and to strengthen the side walls of the settling basin, cross-beams have been installed in various places. As a result, it has become impossible to use a packet conveyor-type sand-sludge lifter, which has led to the need to develop a new sand-slitter.

The present invention was made in view of the above-mentioned circumstances, and is a novel sand settling basin that can be efficiently and easily used even in a sand settling basin whose upper surface is partitioned by reinforcing beams, and which has a simple structure and can be manufactured at low cost. The purpose is to provide a raking machine.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is a sand settling basin formed into a rectangular shape in plan, with the required spacing on its upper surface. A cross beam 2 is provided at the cross beam 2.
, 2 to form an opening 3.3.

Rails 4.4 extending in the transverse direction are laid on the upper surface of the scraped portion of the sand settling basin 1 at required intervals, and on top of the rails 4.4, a portal-shaped traveling platform 5 is mounted via wheels 6.6. It is placed. A support girder 8 having a pair of rails 7.7 extending in the longitudinal direction of the settling basin 1 is provided at the upper part of the traveling frame 5.
, 8 are constructed, and a cart 10 of a sand settling and scraping machine is mounted between these support girders 8, 8 via wheels 9, 9 so as to be freely movable.

The upper ends 12a, 12b of a pair of parallel upper front suspension rods 11m and upper rear suspension rods 11b are pivotally attached to the trolley 10 in front and back in the longitudinal direction of the sand settling basin 1, and these suspension rods 11a, llb
A relay body 13 is pivotally attached to the lower end of the frame 14a, 14b to form an upper parallelogram link a. Further, the upper ends of a pair of parallel lower front suspension rods 15a and lower rear suspension rods 15a and 5b are pivotally attached to the relay body 13 in front and back in the longitudinal direction of the sand settling basin 1, and these suspension rods The upper end of the scraping frame 17, which has a protrusion 17a extending in the longitudinal direction of the lower sand settling basin l, is pivoted to the lower end of the lower end of the sand settling basin 15a, 15b.
8b, and the lower front suspension rod 15& and the lower rear suspension rod 1
A lower parallelogram-link b is formed including 5b. A hydraulic or similar telescoping member 19 is installed between the trolley 10 and the upper front suspension rod 11a at a suitable location, and by expanding and contracting this telescoping member 19, the upper front suspension rod 11a is moved in the front-rear direction with the center of the pivot shaft 12aY. The tilting of the upper parallelogram link a is thereby adjusted. Furthermore, gears 20 and 21 are fixed to and mesh with the shaft 14a at the lower end of the upper front suspension rod 11a and the shaft 16a at the upper end of the lower front suspension rod i5a, respectively. Therefore, if the upper front suspension rod 11a tilts, the lower front suspension rod 15B will tilt by the same amount in the opposite direction due to the engagement of the gears 20.21, and therefore each parallelogram link a, b will tilt. , even if deformed, the scraping frame 1
7 is simply moved up and down without changing its posture! It becomes IC.

Furthermore, a sand discharge frame 22 is provided at the upper part of the lower front suspension rod 15a and projects obliquely forward and upward from the relay body 13, and a sand discharger 23 that opens onto the conveyor 24 is provided at the upper front end of the frame 22. ing.

An ffi driving wheel 26 rotated by a motor 25 is provided at the upper end of the sand discharge frame 22, and guides are provided at the outer edges of the relay frame 13, lower front suspension rod 15a, and scraping frame body 17, respectively. Ring 27° 2B, 29, 30. 31.
32 are provided, and around each of those driving wheels and guide wheels,
An endless chain 34 (indicated by a chain line in the figure) attached to a large number of buckets) 33Y is constructed so that it can be moved.

In addition, 35 is a sanding screw provided at the lower rear end of the scraping frame 17.

Next, to explain the operation of the above-mentioned sand settling and scraping machine of the present invention, during normal use for scraping up settled sand, Figs.
As shown in the figure, when the telescopic member 19 is extended and the upper front suspension rods 11a are paired in a nearly vertical state, the lower front suspension rods 15 & are also tilted in the opposite direction, and the upper parallelogram The link a and the lower parallelogram link b both extend in the vertical direction, and the scraping frame 17 descends to reach a predetermined scraping position. Next, when the motor 25Fa rotates, the endless chain 34 moves from the drive wheel 26 to the guide wheels 27, 2.
B, 29, 30.31゜32 and arrow C in Figure 1
A large number of packets 33 attached to a chain 34 scrape off sediment from the bottom of the settling basin while passing from the guide wheel 30 to the guide wheel 31 and rise, and when the drive wheel 26 passes, the packets 33 move up. The collected sand, etc., is transferred to the sand discharger 23.
After that, it is placed on the conveyor 24 and transported and discharged outside the machine as appropriate. In the above-mentioned sand raking operation, by moving the trolley 10 back and forth within the length of the opening 3, the sand raking at the bottom of the opening 3 is carried out over a wide area.

When the raking work from the one opening 3 is completed, the third
As shown in the figure, the telescopic member 19 is retracted and the upper front suspension rod 1
1a is tilted to a nearly horizontal state. Accordingly, the lower front suspension rod 15a is also tilted in the opposite direction, the upper parallelogram link a and the lower parallelogram link b are both bent in the horizontal direction, and the scraping frame 17 is raised to open the opening. It will be pulled up to the top of 3. So trolley 1
0 forward to move the scraping frame 17 onto the next opening 3, extend the telescopic member 19 again to lower the scraping frame 17 (the state shown by the chain line in Figure 3), and perform the above-mentioned operation. This is done repeatedly.

In this way, when the scraping work in one sand settling basin 1 is completed, the traveling frame 5 is moved with the scraping frame 17'Y pulled up.
is moved to the next settling basin and the above operation is repeated.

As explained above, the present invention has two pairs of upper and lower parallelogram links that are vertically disposed on a truck in such a manner that their tilting directions are opposite to each other so that the tilting can be freely adjusted. A scraping frame body 7ην is attached, and a sand discharge frame that protrudes forward and upward is fixed to the lower parallelogram link. Since the endless chain with the packet attached can be wound freely around it, even in a settling basin where the upper surface is divided into several sections by intervening cross beams, the raking mechanism part can be easily inserted and removed from the opening between each cross beam. It has many excellent effects, such as being able to perform sand settling and raking work more efficiently.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing a sand settling basin equipped with a device according to an embodiment of the present invention, Fig. 2 is a front sectional view, and Fig. 3 is a side sectional view showing the device of the present invention in a vertically shortened state. It is. 1...Sand settling basin 2...Horizontal beam 3...Opening 5...Traveling frame 8...
...Support girder 1o...Bogie 11a...Upper front hanging rod 11b...Upper rear hanging rod 13...Relay body 15a
...Lower front hanging rod 15b...Lower rear hanging rod 17...
Scraping frame 19... Telescopic member 20.21... Gear 2
2... Sand discharge frame 33... Packet 34... Endless chain patent applicant Kubota Iron Works Co., Ltd.

Claims (1)

[Claims] Two pairs of upper and lower parallelogram links are suspended from a trolley installed on a traveling frame above the sand settling pond so that the tilting direction can be adjusted freely. In addition to providing a scraping frame body, a sand discharge frame Z was provided projecting forward and upward from the link, and a large number of packets were attached along the sand discharge frame, the lower parallelogram link, and the scraping frame body. A traveling type sand raking machine characterized by an endless chain installed so that it can travel freely.