JP2547048Y2 - Skip hoist bucket tipping device - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a device for efficiently reversing a bucket of a skip hoist for carrying a load by automatically reversing a large bucket up and down and automatically overturning the bucket at the top. It is. This conveyor has a large bucket, so it is suitable for transporting lump or bulky materials.It is used for transporting gravel in batcher plants, transporting garbage to incinerators, transporting sediment in subway works, etc. Have uses.

(Prior art) In the conventional skip hoist, the bucket was pulled up with a winch and a rope, and the upper roller of the bucket was stopped in the curved rail at the point of overturn, and the bucket was turned over by pulling up the bottom of the bucket. Because of the lifting position, the bucket could not be approached to the inlet of the tank and a long shot had to be used. Further, since the system simply lifts and tilts the bottom of the bucket, a long lifting distance is required, and the overall height of the apparatus is increased. Further, if the bucket is lifted too much, the center of gravity of the bucket cannot be restored beyond the fulcrum.

(Issues to be solved by the invention) First, the point where the load of the bucket is discharged is closer to the tank from the rising line, so that the load can be easily received by the receiving hopper. Second, the large bucket can smoothly fall over. Thirdly, it is necessary to maintain a falling speed suitable for discharging the load.

(Means for Solving the Problems) In order to solve the above-mentioned problem, a chain wheel axle having one chain wheel at each end is attached to the upper and lower portions of the frame so as to be rotatable toward the tank. A single endless chain is suspended, a bucket is placed between the two chains, and the bucket is rotatably joined to the chain by pins attached to both sides of the bucket, so that both sides of the bucket and the center of gravity of the bucket are aligned. The upper roller and the lower roller are mounted on an orthogonal line that almost intersects the vertical plane through which the bucket falls while the pin is mounted at a position closer to the line connecting these upper and lower rollers from the tank side and below the upper roller. The position where the back of the bucket on the tank side does not contact the chain axle,
The frame is provided with a vertical rail having a U-shaped cross section that can guide the roller in parallel with the chain, and the inner edge on the chain side of the rail from the position where this vertical rail intersects with the horizontal axis passing through the axis of the upper chain axle is the upper edge. The radius of the center axis of the chain axle, and the outer edge is the vertical distance between the roller and the pin vertically above the intersection of the horizontal line passing through the axis of the upper chain axle and the outer edge. From the position extended by the length, an arcuate curved rail surrounded by inner and outer edges drawn with a radius centered on the axis of the upper chain wheel axle is provided.

(Operation) With this configuration, when the bucket is raised, the bucket is held upright by two rollers on both sides of the bucket, and when the bucket falls, the bucket loses its weight with the pin moving on the outer periphery of the upper chain wheel. While being supported by the lower roller moving on the inner side surface of the curved rail, it rotates about the center of gravity and falls down smoothly. Therefore, even a large bucket can easily fall over, the falling speed is the same as the chain speed and uniform, and the bucket approaches the receiving hopper of the tank by the diameter of the curved rail from the rising line when falling.

(Embodiment) FIG. 1 is a side view showing an embodiment of the present invention device, and FIG. 2 is a front view thereof.

The overturning device of the present invention is shown in FIG.
A tank (13) having a hopper (14) for receiving a load discharged from the overturning device indicated by a chain line is arranged, and a loading portion is provided at a lower portion of the frame on the opposite side. The frame (17)
An upper sprocket (16) having sprockets (1) and (1 ') at both ends is rotatably mounted at a position near the tank (13), and corresponds to the upper sprocket (16). A lower chain wheel axle (16 ') having a chain wheel (2) (2') is also attached to the lower portion of the frame.

An endless chain (5) between the upper chain wheel (1) and the lower wheel chain (2), and between the chain wheel (1 ') and the chain wheel (2').
(5 '), these two endless chains (5)
A bucket (6) is arranged between (5 ') so that the bucket (6) can be raised and lowered in the frame (17).

Pins (7) (7 ') are provided on both sides of the bucket (6).
The upper roller (8) is spaced apart on a vertical line on the both sides of which the vertical plane passing through the center of gravity of the bucket (6) and the both sides of the bucket are perpendicular.
(8 ') and lower rollers (9), (9'). The pin (7) (7 ') is mounted at a position closer to the tank (13) than a line connecting the rollers (8) (9) and (8') (9 ') and below the upper roller (8). At the position where the back does not touch the upper chain axle (16) while the bucket is overturned. That is, the position is shifted inward from the back of the bucket on the tank side by the amount obtained by subtracting the radius of the chain wheel shaft (16) and the gap between the bucket and the shaft from the radius of the upper chain wheel (1). A vertical rail (1) is formed in the frame so that rollers (8) (8 ') and (9) (9') can roll inside the groove.
0) and (10 ') are provided vertically in parallel with the chains (5) and (5'), and the upper ends of the vertical rails (10) and (10 ') are aligned with a horizontal line passing through the axis of the upper chain axle (16). The inner edge of the groove on the chain side from the intersection point has a radius equal to the horizontal distance from the axis of the upper chain wheel axle (16) to the inner edge, and the outer edge passes through the axis of the upper chain wheel axle (16). From the position where the horizontal line intersects, it is extended vertically upward by the length of the vertical distance between the roller (8) and the pin (7) plus the radius of the roller (8), and then the axis of the chain axle (16) is connected. Arc-shaped curved rail (11) (1
1 '). Therefore, the groove of the guide rail is larger on the outer edge side of the curved rails (11) and (11 ') than the vertical rails (10) and (10'), and the upper roller is used when the bucket (6) falls. (8) (8 ')
It functions as an accommodating section (12). The chains (5) and (5 ') are configured to be able to rotate forward and backward by a motor (15).

Next, the operation will be described. When the bucket (6) is loaded on the bucket (6) at the loading section at the lower part of the frame opposite to the tank, and the drive chain (4) is driven by the motor (15), the upper chain wheel (1) is Through chain (5) (5 ') bucket (6)
The upper and lower rollers (8) (8 ') (9) (9') on both sides of the bucket are lifted by the vertical rails (10) (1).
Because it is inside 0 '), it runs upward while keeping it upright. Top roller at the top of the vertical rail (8)
(8 ') enters the receiving portion (12) having an extended outer peripheral surface, and thereafter the bucket moves on the outer periphery of the upper sprocket (7).
(7 ') and the lower roller (9) (9') which rolls on the inner surface of the curved rail and move, and when it falls, the pins (7) (7 ') descend with the rotation of the chain wheel. As the lower rollers (9) (9 ') rise along the curved rail, the bucket falls over, discharges the load and is stopped by a limit switch (not shown). Thereafter, it returns to the lower loading section, receives the load in the bucket, and carries out transportation by repeating the ascending, falling, and discharging of the load.

The bucket overturning device configured as described above inputs garbage into the incinerator, transports mechanical parts and limestone upwards, loads lumps into the crusher, transports gravel in batcher plants, and cements waste tires in cement kilns. It is used for charging ash coming out of incinerators, etc. It is also used to lift the container that has collected the garbage with this device and turn it over to put only the garbage into the incinerator.

(Effect of the Invention) With this configuration, the bucket can fall over while rotating around the center of gravity of the curved rail while traveling in the curved rail, so that a large or heavy bucket can be smoothly fallen. The diameter of the bucket approaches the receiving hopper of the tank and the falling speed of the bucket is the same as the operating speed of the chain, so that dust generated by the discharge of the load due to the sharp falling of the bucket can be suppressed.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a front view. (1) (1 ') ... upper chain wheel (2) (2') ... lower wheel chain (3) ... idle wheel wheel (4) ... drive wheel wheel
(5) (5 ') ... chain, (6) ... bucket,
(7) (7 ') ... connecting pin, (8) (8') ... upper roller, (9) (9 ') ... lower roller, (10)
(10 ') Vertical rail, (11) (11') Curved rail, (12) Housing, (13) Tank, (14)
Receiving hopper, (15) ... motor, (16) (16 ') ...
Chain axle, (17) …… Frame

Claims (1)

(57) [Scope of request for utility model registration] 1. A chain wheel (1) on the upper and lower parts of a frame (17).
Chain wheels (16) and (16 ') having (1') (2) and (2 ') at both ends are rotatably mounted near the tank (13), and these wheel chains (1) (2) (1) ') Two endless chains (5) and (5') are suspended between (2 ') and a bucket (6) is arranged between these two chains and the bucket (6) is attached to both sides thereof. Rotatably connected to the chains (5) and (5 ') with the pins (7) and (7'), and on a perpendicular line substantially intersecting both sides of the bucket (6) and a vertical plane passing through the center of gravity of the bucket (6). Attach the upper roller (8) (8 ') and the lower roller (9) (9'),
The mounting position of (7 ') is a position closer to the line connecting the rollers (8) (9) and (8') (9 ') from the tank (13) side and below the upper rollers (8) (8'). In this position, the back of the bucket on the side of the bucket is not in contact with the chain axle (16) while the bucket is overturned, and the frame (17) is provided with rollers (8) (8 ') parallel to the chains (5) (5'). )
(9) A U-shaped vertical rail (10) (10 ') capable of guiding (9') is provided, and the vertical rail (10) (10 ') is provided.
The inner edge on the chain side of the rail from the intersection with the horizontal line passing through the axis of the upper chain axle (16) is a radius centered on the axis of the upper chain axle (16), and the outer edge is the upper chain axle ( 1
Roller (8) (8 ') and pin (7) (7') vertically upward from the intersection of the horizontal line passing through the axis of 6) and the outer edge
A circle surrounded by inner and outer edges drawn with a radius centered on the axis of the upper axle (16) from a position extended by a length obtained by adding the radius of the rollers (8) and (8 ') to the vertical distance between them. A bucket hoisting device for a skip hoist comprising arcuate curved rails (11) and (11 ').