JPS5952156B2 - Rope trolley type unloader bucket rotation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION - The present invention relates to a packet turning device for a complete rope trolley unloader.

There are the following three methods as prior art in this field.

In the first method shown in Fig. 1, by rotating the sheave group A, the rotatable sheave group B provided on the main trolley 1 is rotated in the same direction as the sheave group A to pass through these sheave groups. Packet 2 suspended from the end of a rope
Swirl.

Sheave group B has a rope 3°3 resulting from the movement of sheave group A.
' and 4, 4', but if necessary, a drive device is provided in the sheave group B to forcibly displace it.

In the second method shown in FIG. 2, the sheave groups C and D on the main trolley 5, which are movable in the direction of the rope, are forcibly rotated by providing a drive device.

At this time, in relation to the movement of the sheave group, 17 of the movement amount
The sheave group C is regulated to allow movement of the sheave group C.

In the third embodiment of FIG. 3 two supporting drums 6.6'
By creating a difference in winding speed, the main trolley 7
The sheaves 8, 8' balanced against each other on the top are moved to turn the packet at the end of the rope that has passed through the sheaves 8, 8'.

These conventional techniques have the following problems (a) to (d).

(a) The biggest disadvantages of a rope trolley set compared to a club trolley set are that there are more sheaves involved, which shortens the life of the rope, and furthermore, the longer rope length makes the rope more expensive to maintain.

However, in the system of FIGS. 1 and 2, two additional sheaves are added, which exacerbates the disadvantages of the rope trolley set.

(b) In Figures 1 and 3, symmetrical 1
Only under conditions where the pair of ropes has the same tension, the tension and slack applied to the ropes allows the packet to turn while remaining vertical.

However, since the packet handles irregularly shaped loose objects, the tension of both ropes is not always equal, so the turning angle may not correspond to the amount of movement of the rope.

(C) In the method of forcibly moving the sheave block of the trolley in FIGS. 1 and 2, it is necessary to supply power to the main trolley for forcibly driving the sheave block.

For this reason, since the rope trolley set does not have a driving part on the main trolley, it not only loses one of its advantages of being able to traverse quickly and easily, but also causes maintenance problems.

(d) In the system shown in Figure 3, the support drum is divided into two.

In order to separate them, a device for synchronizing the normal hoisting and lowering speeds is added, resulting in a complicated hoisting device.

The object of the present invention is to provide a bar which allows the opening direction of the packet to be changed without having to change the packet each time, and which takes into account the advantages and disadvantages of a set of rope trolleys.

The purpose is to create a kerato rotating device, and the specific objectives are: (a) To rotate packets without increasing the number of hoisting sheaves.

(b) Maintain a constant swing angle of the bucket regardless of the tension on the hoisting rope.

(C) Turn the packet without supplying power to the main trolley.

(d) Swirling the packet without increasing the number of hoisting drums to two.

That's all.

Embodiments of the present invention will be described below with reference to FIGS. 4 and 6.

The main trolley 9 and the auxiliary trolley 10 provided on the girder 11 of the rope trolley set unloader are connected to the traversing drum 12.
The girder 11 is guided by the transverse rope 13 wrapped around the
rampant above.

14 is a support drum, 15.15' is this support drum 14
16 is an opening/closing drum; 17.
17' is an opening/closing rope wound around the opening/closing drum, each rope 15. 15', 17. 17' are sheave groups E and F on the main trolley 9 and the auxiliary trolley 10, respectively.
is routed to packet 18 via.

Sheave group E is connected to vertical pin 28 to link 26 as shown in FIG.
The sheave 25 is supported by the sheave bracket 31 connected with
This link 26 is connected to an equalized beam 27 with a vertical pin 29, and this equalized beam 27 is rotatably attached to the main trolley 9 with a vertical pin 30.

One end of the swing drive rope 20, 20' is fastened to both ends 19, 19' of the equalizing beam 27.

Fixed sheaves 22 and 22' are installed on the auxiliary trolley 10 for guiding the swing drive ropes 20 and 20', and a drive device 23 for pulling the swing drive ropes 20 and 20' is installed on the girder 11. is provided.

The swing drive rope 20.20' is the guide sheave 22°22
' is inverted and fixed to the driving device 23.

The sheave group F is attached to the auxiliary trolley 10 as shown in FIG.

That is, each rope sheep 37 constituting the sheave group F is attached to the equalizing beam 36 together with the sheave bracket 38 via a link 39 with pins 40 and 41.

This equalize beam 36 is attached to the auxiliary trolley 10 by a pin 42 so as to be horizontally rotatable.

A gear 44 integrally attached to the equalize beam 36 is connected to the motor 35 via a reduction gear 43.

Instead of the motor 35, the speed reducer 43, etc., the equalize beam 36 may be rotationally displaced by an expansion/contraction drive using a hydraulic cylinder.

In such a configuration, the pivoting movement of the packet 18 is
This is accomplished by horizontally displacing the sheave group E.

The sheave group E is rotated by driving the drive device 23 to pull one of the rotation driving ropes 20 and 20' and loosen the other.

The equalize beam 27 horizontally rotates around the pin 30 due to the difference in tension between the ropes 20 and 20' caused by this drive.

For this reason, the sheave 2 attached to the equalize beam 27
5 is horizontally displaced and arranged as if it were rotated.

Therefore, each rope 15 that has passed through sheave group E,
15', 17. Packet 18 hanging at 17'
swivels and is suspended in a swiveling state.

In this turning state, due to the displacement of sheave group E,
Each rope 15, 15' below sheave group E, 17.
The length of 17' changes and the packet 18 remains slanted, which is a problem.

To make this packet 18 horizontal in the swiveling position, proceed as follows.

First, the motor 35 is driven and the rotation of the motor 35 is transmitted to the equalize beam 36 via the reducer 43, gear 44, etc.

The equalized beam 36 that has received the rotational force turns around the pin 42 in accordance with the rotational direction in which it receives the rotational force.

As the equalize beam 36 rotates, each sheave 37 is horizontally displaced and arranged as if the sheave group F had rotated.

At this time, the driving direction of the motor 35 is set to the equalize beam 2.
If forward or reverse is selected depending on the direction of rotation of the balance beam 7, the equalize beam 36 will rotate in the same direction as the equalize beam 27.

When the equalize beam 36 turns by an amount equal to 172 of the equalize beam 27, the motor 35 is stopped to stop the turning operation.

The sheave group F, which was horizontally displaced due to this turning operation,
According to the displacement amount of each sheave 37, each sheave group E, F
Each rope 15. 15', 17. 17' is adjusted, and each rope 15.17' below sheave group E is adjusted according to this adjustment. 15', 17. The length of 17' is adjusted to the length before turning.

This causes the packet 18 to be suspended horizontally.

Note that the drive device 23 is not limited to a lever mechanism as in this embodiment; for example, a rope drum, a hydraulic cylinder, etc. may be provided on the ropes 20, 20', respectively, to move the ropes 20, 20' in opposite directions. As long as you can do it.

Sheave groups E, F through which support ropes 15.15' pass
In the case where the packet is to be turned by only moving the sheave within the sheave, the sheave through which the opening/closing ropes 17 and 17' pass may be a fixed sheave in this description, and the present invention is equally effective in this case.

As described above, the effects of the present invention are as follows:
15', 17. 17' passes through a small number of sheave groups, each rope 15. 15', 17.1
7', without supplying power to the main trolley 9, which has a particularly long travel range, and without having to provide two support drums 14.
A simple mechanism for horizontally displacing the sheave group E on the top and the sheave group F on the auxiliary trolley 10 makes it possible to turn the packet at any time and maintain the turning angle.

[Brief explanation of the drawing]

Figures 1, 2 and 3 are schematic diagrams showing conventional packet turning devices, with Figure 1 showing the first method and Figure 2 the second method.
FIG. 3 is a diagram showing a device according to the third method, and FIG. 4 is a schematic diagram of a packet swirling device according to the present invention.
5 is a detailed top view of the main trolley in FIG. 4, and FIG. 6 is a detailed top view of the auxiliary trolley in FIG. 4. 9...Main trolley, 10...Auxiliary trolley, 11...Girder-112...
Traverse drum, 13... Traverse rope, 14...
... Support drum, 15, 15'... Support rope, 16... Opening/closing drum, 17, 17'...
...Opening/closing rope, 18...Packet, 20゜20'... Rope for swinging drive, 22, 22'.
... Guide sheave, 23 ... Drive device, 2
7, 36...Equalize Beam, 30...
... Vertical pin, 35 ... Motor, 43 ...
...Reducer, 44...Gear, E, F...
... Sheave group.

Claims (1)

[Claims] 1 A rope sheep is supported and placed horizontally on the main trolley and auxiliary trolley running on the girder, and the packets are suspended from the main trolley by the opening/closing and supporting ropes that have passed through each rope sheep. In the operating rope trolley set unloader, the rope connected to the means for horizontally displaceably supporting the rope sheep of the main trolley is reversed by the fixed rope sheep placed on the auxiliary trolley, and then the rope is A packet turning device for a rope trolley complete unloader, characterized in that a prime mover that generates horizontal displacement power from the auxiliary trolley is connected to a support member that is connected to a garter and supports the rope sheep of the auxiliary trolley so as to be horizontally displaceable.