JPS5827196B2 - Bucket rotation device of rope trolley type unloader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The technical field of application of the present invention is a packet turning device for a rope trolley set unloader.

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

The first method shown in Figures 1 and 2 is
This method is known from Publication No. 9, and this method horizontally turns each sheave group A and B shown in Fig. 1 to turn and displace the rope 3,374.4' hanging downward from sheave group B. In this way, the packet 2 suspended from the main trolley 1 by the ropes 3, 3', 4, 4' is horizontally turned.

The devices that drive each sheave group A and B in rotation are the same,
To explain about sheave group B, as shown in Fig. 2, sheave group B
A common support shaft Z is horizontally rotated by a motor Y using a shaft and a gear train.

The second system shown in Figure 3 is known from Japanese Patent Publication No. 45-38780, and this system uses sheave groups C and D, which correspond to the sheave groups A and B in Figure 1, on the main trolley. 5 so that their axes are parallel to each other, each sheave group C and D are simultaneously horizontally rotated, and the ropes hanging from the sheave group are rotated and displaced, thereby obtaining a horizontal turning action of the packet.

The turning device of each sheave group C9D is similar to that shown in FIG. is regulated by deceleration using gears, etc.

In the third embodiment of FIG. 4 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 rotate 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 first and second methods, the sheave is 2wU.
This addition exacerbates the shortcomings of the rope trolley set.

(b) In each of the first and third methods, 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 each of the first and second methods, in the method of forcibly moving the sheave block of the trolley, 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 third method, since the support drum is separated into two pieces, a device for synchronizing the speeds during normal hoisting and hoisting is added, resulting in a complicated hoisting device.

The object of the present invention is to change the opening direction of the packet without having to change the packet each time.

In addition, the purpose is to create a packet turning device that takes into consideration the advantages and disadvantages of the rope trolley set, and the specific objectives are: (a) To turn the packet without increasing the number of hoisting sheaves.

(b) Maintain a constant packet turning angle regardless of the tension in the -8 upper 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 based on FIGS. 5 and 6.

A main trolley 9 and an auxiliary trolley 10 provided on a rope trolley set unloader 11 traverse on the girder 11 guided by a traversing rope 13 wound around a traversing drum 12.

14 is a support drum, 15 and 15' are support drums 1
4 is a support rope wrapped around, 16 is an opening/closing drum, 17
, 17' are opening/closing ropes wound around the opening/closing drum, and ropes 15, 15', 17, 17' are sheave groups E and F on the main trolley 9 and 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.

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

One end of the swing drive rope 20, 20' and the rope 21, 21' for swinging the sheave group F are tightened to both ends 19, 19' of the equalizing beam 27.

Fixed sheaves 22, 22' are installed on the auxiliary trolley 10 to guide the swing drive rope 22, 20', and a rope tensioning device is installed on the girder 11 to pull the swing drive rope 20°20'. 23 and rope 21.21'
A fixed end 24 is provided for tightening.

The rotating and driving ropes 20 and 20' are fixed sheaves 22 and 2.
2' is inverted and attached to the rope tensioning device 23, and the ropes 21 and 21' are each fixed to the fixed end 24 by inverting the sheaves 32 and 32' on the equalizing beam of the sheave group F.

The rope tensioning device 23 has a structure in which a lever rotatably attached to the girder 11 via a rotating shaft is driven to rotate by a motor connected to the rotating shaft. ,3'.

4.4' is replaced with a single lever, and the swing drive system is also the same as shown in FIG.

The tensioning and loosening of the ropes 20.degree. 20' necessary for pivoting the sheave group E is accomplished by pivoting the lever of the rope tensioning device 23.

However, if the packet 18 remains as it is, the rotated packet 18 will be tilted, but the sheave group
causes the sheave group E to turn by half, and the inclination of the packet 18 is corrected.

Note that the rope tensioning device 23 is not limited to a lever mechanism as in this embodiment; for example, a rope drum and a hydraulic cylinder may be provided on the ropes 20 and 20', respectively, and the ropes 20 and 20' are moved in opposite directions. All you have to do is move it.

Sheave group E through which support ropes 15, 15' pass.

If the packet is to be turned by only moving the sheave in F, the sheave through which the opening/closing rope 17, 17' passes may be a fixed sheave in the present invention, and the present invention is equally effective in this case.

As detailed above, the effects of the present invention are as follows:
5', 17.17' passes through a small number of sheave groups, without causing premature wear of each rope 15.15', 17°17', and without supplying power to the main trolley 9. Ropes 20, 20', which do not require two supporting drums 14, and which are operated by rope tensioning devices with sheave groups E on the main trolley 9 and sheave groups F on the auxiliary trolley 10 installed outside each trolley, 21.2
1', the packet can be rotated at any time using a simple mechanism for rotating the packet, and the angle can be maintained.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the conventional first packet turning system, Fig. 2 is a partial sectional view of the sheave group turning drive device in Fig. 1, and Fig. 3 is a schematic diagram showing the conventional second packet turning system. FIG. 4 is a schematic diagram showing the conventional third packet swirling method, FIG. 5 is a schematic diagram showing the packet swirling method according to the embodiment of the present invention, and FIG. FIG. 3 is a detailed top view of the trolley. 9...Main trolley, 10...Auxiliary trolley, 11...
・Girder 112...Transverse drum, 13...Transverse rope, 14...Support drum, 15.15'...Support rope, 16...Opening/closing drum 17, 17'...
・Opening/closing rope, 18...Packet, 20.20'...
・Swing 1 drive rope, 21.21'...rope, 2
2.22'...Fixed sheave, 23...Rope tension-
if, 27...Equalize beam, 30...Vertical pin, 32.32'...Sheave, E, F... Sheave group.

Claims (1)

[Claims] 1 A rope sheep is supported and placed on the main trolley and auxiliary trolley running on the garter so that it can be horizontally displaced, and the packets are suspended from the main trolley using the opening/closing and supporting ropes that have passed through each rope sheep. In the rope trolley set unloader, one of the ropes 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 other rope connected to the girder and connected to means for horizontally displaceably supporting the rope sheep of the main trolley is mounted on the auxiliary trolley so as to be displaced synchronously with the rope sheep of the auxiliary trolley. 1. A packet turning device for a rope trolley set unloader, characterized in that the packet turning device is connected to the girder after being reversed by a rope sheep placed thereon.