JPS5827197B2 - Bucket rotation device of rope trolley type unloader - 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.

The first method shown in Figures 1 and 2 is
This method is known from Japanese Patent Application No. 9, and involves horizontally rotating each sheave group A and B in FIG. 1, and a rope 3.3' hanging downward from sheave group B.

4.4' is turned and displaced, which causes the rope 3
．． In this method, the packet 2 suspended from the main trolley 1 at points 3' and 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 method shown in FIG. 3 is known from Japanese Patent Publication No. 45=38780, and in this method each sheave group C, D corresponding to each sheave group A, B in FIG. 1 is connected to a main trolley. 5 so that their axes are parallel to each other, each sheave group C and D are simultaneously horizontally rotated, and the rope hanging from the sheave group is rotated and displaced, thereby obtaining a horizontal rotation action of the packet.

The revolving device of each sheave group C and D is similar to that shown in Fig. 2, and in this case, the sheave group is designed to allow movement of 1/2 of the amount of movement of the sheave group. Group C is regulated by deceleration using gears, etc.

In the third system of Fig. 4, two support drums 6.6
By creating a winding speed difference of ′, 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 many sheaves involved, which shortens the life of the rope, and because the rope length is long, the rope maintenance costs are high. be.

However, in each of the first and second systems, two additional sheaves are added, which exacerbates the drawbacks 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 sieve block of the nitroly, 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 normal speeds of raising and lowering is added, resulting in a complicated hoisting device.

The purpose of the present invention is to provide a packet turning device that takes into account the advantages and disadvantages of a set of rope trolleys in order to change the opening direction of the packet without having to change the packet each time. a) Turn the packet without increasing the hoisting sheave.

(b) Maintain a constant packet turning angle regardless of the tension of the 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. 5, 6, and 7.

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.
Girder 1 is guided by a transverse rope 13 wrapped around the
1.

14 is a support drum, 15 and 15' are support ropes wound around this support drum 14, 16 is an opening/closing drum, 1
7.17' is an opening/closing rope wound around the opening/closing drum, and ropes 15.15' and 17.17' are sheave groups E and F on the main trolley 9 and auxiliary trolley 10, respectively.
is routed to packet 18 via .

As shown in FIG.
The sheave 25 is supported by a sheave bracket 31 connected at
This equalized beam 27 is rotatably attached to the main trolley 9 with a vertical pin 30.

The swing drive rope 20, 20' is fastened at one end to both ends 19, 19' of the cambered beam 27.

As shown in FIG.
6 using a connecting means using pins 40 and 41 and then engaged.

The middle of the equalize beam 36 is attached to the auxiliary trolley 10 with a pin 42 so as to be horizontally rotatable.

A gear 38 is provided integrally with the center of rotation of the equalize beam 36.

On the other hand, the auxiliary trolley 10 has a swing drive rope 20.20.
A guide drum 22° 22' is installed for guiding the .

Each rotating shaft 34 integrated with this guide drum 22, 22'
, 34' are connected to one end of the shaft 35 via the differential reducer 42, and the other end is connected to the gear 38.

The reduction ratio of the differential speed reducer 52 is determined so that the sheave group F moves by 1/2 of the sheave group E.

Swinging and driving ropes 20, 20' extend from both ends 19, 19' of the equalizing beam 27 on the main trolley 9, respectively.
After being wound around the guide drums 22 and 22' on the auxiliary trolley 10, it is connected to both ends of the rope tensioning device 23 on the girder 11.

This rope tensioning device 23 has a structure in which a lever is rotatably attached to the girder 11 via a rotating shaft and is driven to rotate by a motor connected to the rotating shaft. It is the same as that in which 3, 3', 4, and 4' are replaced with a single lever, and the swing drive system is also the same as shown in FIG.

Therefore, when the rope tensioning device 23 is driven, the lever turns, and the turning drive rope 20 connected to both ends of the lever
．． 20' can be pulled and the other loosened.

To rotate the packet 18, it is necessary to rotate the sheave group E.

The sheave group E is swiveled by the tension and slack of the swivel drive rope 20, 20' caused by the swiveling of the lever of the rope tensioning device 23.

This rotation of the sheave group E causes the packet 18 to rotate.

If this continues, the packet 18 will tilt in the pivot position, but as the pivot 1 drive rope 20.20' moves under tension or slack, it will rotate the guide drum 22, 22'.

This rotation is decelerated within the differential reducer 42 via the rotating shaft 34 or 34', causing the gear 38 to rotate via the shaft 35.

Since the gear 38 is integrated with the equalizing beam 36, the equalizing beam 36 rotates in the same direction as the sheave group E by 1/2 the amount of the sheave group E.

Therefore, sheave group F moves by 1/2 rotation in the same direction as sheave group E, and each rope 15.15', 17.17
'The length of sheave group E or less is corrected to a length where the packet 18 becomes horizontal.

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 in this explanation may be a fixed sheave, and the present invention is equally effective in this case.

Furthermore, a pin for direct horizontal rotation of the sheave group FK may be provided to deflect the equalizing beam 36.

As described above, the effects of the present invention are as follows:
5', 17.17' passes through a small number of sheave groups, without accelerating the wear of each rope 15.15', 17°17', and without supplying power to the main trolley 9. The sheave group E on the main trolley 9 and the auxiliary trolley 1 do not require two support drums 14.
By using a simple mechanism that horizontally displaces the sheave group F above 0 by the ropes 20, 20'l/C guided from the rope tensioning device 23 installed outside each trolley, the packet can be turned at any time and the turning angle can be maintained. be.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the conventional first packet rotation method,
Fig. 2 is a partial sectional view of the swing 1 drive device for the sheave group in Fig. 1, Fig. 3 is a schematic diagram showing the conventional second packet swing system, and Fig. 4 is a schematic diagram showing the conventional third packet swing system. 5 is a schematic diagram showing a packet turning system according to an embodiment of the present invention, FIG. 6 is a detailed top view of the main trolley in FIG. 5, and FIG. 7 is a schematic diagram of the auxiliary trolley in FIG. 5. It is a detailed top view. 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, 'I 7, 17
'...Opening/closing rope, 18...Packet, 20.20
'... Rope for swing drive, 22.22'... Guide drum, 23... Rope tension device, 27, 36...
Equalize beam, 30... Vertical pin, 38... Vertical pin, 38... Gear, 42... Differential reducer, 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 girder so that it can be horizontally displaced, and packet suspension operations are performed from the main trolley using the opening/closing and supporting ropes that have passed through each rope sheep. In the rope trolley set unloader, after the rope connected to the means for horizontally displaceably supporting the rope sheep of the main trolley is wound around the guide drum placed on the auxiliary trolley, the rope is unloaded onto the girder via a rope tensioning device. The guide drum is connected to the support means of the rope sheep on the auxiliary trolley via a rotational force transmission means, and the transmission direction and reduction ratio of the rotational force transmission means are determined by the displacement of the rope sheep on the main trolley. A packet turning device for a rope trolley set unloader, characterized in that the rope sheep on the auxiliary trolley is set to be displaced in the same direction as the rope sheep on the main trolley by 1/2 of the amount.