JPS6349286Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stop position correction device for a sludge scraper.

Conventionally, as a means of collecting sludge from a large number of sedimentation tanks installed in parallel, the sludge was collected while moving on running rails installed along the longitudinal direction of the settling tanks, and the sludge was installed perpendicularly at the end of the pond. A girder-like sludge scraper that transfers to a traverse rail and traverses to adjacent land is used, and the one disclosed in Japanese Patent Application Laid-open No. 1411/1983 is known. This known technique discloses that a hydraulic cylinder is provided between the stopper and the sludge scraper, and the cylinder rod is extended horizontally by a constant stroke to correct the stop position. However, if the cylinder rod comes into contact with the stopper and extends a certain stroke, it will coast past the stop position and it will take time to adjust the position. In addition, the capacity of the hydraulic cylinder must be large enough to push the sludge scraper back from the stopper, which poses problems such as the need for large scale.

The purpose of this invention is to position the girder body reliably using a simple device, and the girder body runs along a running rail laid in the longitudinal direction of a sedimentation pond, and connects to a transverse rail at the edge of the pond. In a sludge scraper running across an adjacent pond, wedge-shaped spacers are vertically provided at both ends of the girder body in the traveling direction, and stoppers are provided on the pond bed to abut the wedge-shaped spacers. It is something to do.

The present invention will be described below based on embodiments shown in the drawings.

A girder body 1 of a sludge scraper on which a sludge scraper (not shown) is mounted has a running girder mounted so as to be able to run freely on running rails 2 laid along both sides of the longitudinal direction of a sedimentation tank, etc. Wheels 3, 3, and a transverse rail 4 laid at right angles to the traveling rail 2 at Ikebata.
Traversing wheels 5, 5 are mounted on the top of the girder so that they can move freely, and can be raised and lowered by a lifting device 11. They are rotated synchronously by a shaft 6, and the transverse wheels 5, 5 are also omitted from the illustration, but in order to prevent skew during transverse movement, the transverse wheels 5, 5 on both sides in the transverse direction are rotated on a common drive shaft. It is then driven. In the figure, 7 is a gear interlocking mechanism 8 for transmitting power from the drive shaft 6 to the running wheels 3, and 9 is a slip device with multiple friction plates provided on a gear 71 provided on the drive shaft 6, and 9 is a running wheel attached to the drive shaft 6. A wheel drive device 10 is a transverse wheel drive device attached to the above-mentioned transverse wheel drive shaft. Furthermore, spacers provided at both ends of the girder body in the running direction and stoppers provided at the end of the girder provide a device for correcting the stop position of the running wheels when the girder body shifts from running to traversing. This consists of a hydraulic cylinder 21 provided at the left and right ends of the traveling girder, a wedge-shaped spacer 24 fixed to the tip of a piston rod 22 of the cylinder 21 via a nutcle 23, and a wedge-shaped spacer 24 placed on the pond bed. A contacting stopper 25 is fixedly configured. In addition, the upper and lower limits of lifting of the piston rod and the running wheels 3, 3
is a limit switch 26, 2 for detecting the reference position.
7 and 28 are provided.

Next, the operation of the apparatus configured as described above will be explained.

When the sludge raking machine completes raking the pond and travels to the end of the pond in order to cross over to the adjacent pond, the piston rod of the hydraulic cylinder 21 is set in advance at the lower limit position, that is, at the position where it contacts the stopper on the pond bed. ing. When the girder body 1 travels to the pond edge via running wheels 3, 3 on a traveling rail 2 laid on a pond, a wedge-shaped spacer 24 provided on the girder body 1 and a stopper 25 come into contact and stop. In this case, when the girder main body 1 moves diagonally on either the left or right side and a torque exceeding a predetermined value is generated on the running wheels 3, a slip device 8 consisting of multiple friction plates connected to a gear interlocking mechanism 7 is activated to move the running wheels 3 independently of the drive shaft 6. travels and prevents sliding between the traveling wheels 3 and the traveling rails 2. Therefore, skew can also be corrected smoothly.

When the left and right wedge-shaped spacers 24 of the traveling girder 1 come into contact with the stoppers 25, the limit switch for detecting the reference position of the traveling wheels is activated, and when the hydraulic cylinder 21 is activated and the piston rod is raised to the upper limit position, the wedge-shaped spacers 24 are brought into contact with each other. When the limit switch 26 is moved away from the stopper 25 and the limit switch 26 at the piston upper limit position is activated, the piston shifts to lateral movement.

Next, the traversing wheels 5 are lowered by appropriate means and placed on the traversing rails 4, and at the same time the traveling wheels 3 are lifted up and the girder body 1 is allowed to traverse along the traversing rails 4.

According to the present invention, wedge-shaped spacers are provided at both ends of the girder body in the running direction so as to be movable in the vertical direction, and a stopper that abuts the wedge-shaped spacers is fixed on the pond bed.This simple structure ensures reliable stopping. This has the effect of giving you points.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the outline of the sludge scraper, Figure 2
The figure shows the stop position correcting device, FIG. 3 is an explanatory diagram of the drive procedure for the traveling wheels, and FIG. 4 is an explanatory diagram of the installation of the limit switch. DESCRIPTION OF SYMBOLS 1... Girder main body, 2... Running rail, 3... Running wheel, 4... Traversing rail, 5... Traversing wheel, 6... Drive shaft, 7... Gear interlocking mechanism, 8... Slip device, 9...
Traveling wheel drive device, 10... Traverse wheel drive device, 1
DESCRIPTION OF SYMBOLS 1... Lifting device, 21... Hydraulic cylinder, 22... Piston rod, 23... Knuckle, 24... Spacer, 25... Stopper, 26, 27, 28... Limit switch.

Claims (1)

[Scope of utility model registration request] A sludge scraper comprising a stopper provided on a pond bed to stop a movable sludge scraper, and a device for preventing sliding between the running wheels of the scraper and the running rail, the stopper and the sludge scraper. A stop position correction device for a sludge scraper, characterized in that a wedge-shaped spacer that is vertically movable is provided in between.