JPH026052Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial field of application> This invention is a method for using wire ropes in the inspection corridor of dam facilities where the track gradient changes significantly in the inclination direction or curves laterally. This invention relates to a wire rope break prevention device that prevents the wire rope from coming into contact with the ceiling or side wall surface in an inspection gallery when a passenger car supported by the rail moves up and down on a track.

<Conventional technology> In the past, in inclined shafts of coal mines, etc., the track slope was at most 15 to 18 degrees, so there was no risk that the wire ropes supporting the passenger cars would come into contact with the ceiling or side walls, and therefore There was no need to take special measures to prevent the wire rope from breaking.

However, in the inspection gallery of recent dam facilities,
For example, the slope may suddenly change from a steep slope of about 47 degrees to a slope of about 37 degrees, or curve sideways, and there is a risk that the wire rope used to raise and lower the passenger car may come into contact with the ceiling or side wall of the inspection gallery. began to occur.

<Problems to be solved by the invention> In general, there is not necessarily one place where the track slope suddenly changes in the inspection gallery, but there may be several places. Therefore, the purpose of this invention was to create a device that can easily and reliably prevent the wire rope from flailing, regardless of the number of places where the track slope suddenly changes.

<Means for solving the problem> In this invention, two guide rollers each in the vertical and horizontal directions are rotatably mounted on the left and right sides of the cart, which is separate from the passenger cart. The narrow space surrounded by is used as the insertion part of the wire rope for raising and lowering the passenger car on the payout side and the hoisting side. At the front of the trolley, there is a contact part that can come into contact with a stopper attached to the rail in order to stop the trolley at a predetermined position when the trolley is lowered. In order to prevent the bogie stopped by the abutting part of the bogie from falling due to the tension of the wire rope, a fitting member is provided which engages and locks with a bogie fall prevention member attached to the rail side.

Such trolleys are lined up at the rear of the passenger car for a number of minutes from the desired break-prevention point, and when the passenger car is lowered, the carts are placed in the predetermined positions one after another to prevent the wire rope from tipping over. Do it without fear. When the passenger car is ascending, these carts are pushed in turn by the passenger car to return them to their original positions.

<Example> This invention will be described in detail with reference to an example shown in the drawings as follows.

Attach four wheels 5 to the underframe 4 and rails 1, 1
Four guide rollers 6 are attached to the trolley 3, which can run freely on the top, so as to sandwich the sub-rail 2 so that the wheels 5 do not come off the rail 1. A pedestal 7 is erected behind the cart 3, and two guide rollers 8, 8, 9, 9 are rotatably mounted on the left and right sides. One of the narrow spaces 10, 10 surrounded by the four guide rollers 8, 8, 9, 9 is used as a feeding-side insertion part for the wire rope A for raising and lowering a passenger car, and the other is used as a winding-up side insertion part. The swing of the wire rope A is restricted by this narrow space 10.

A rail 1 is provided on the left side of the front end surface of the underframe 4.
It has an abutment part 11 that can come into contact with a stopper 12 fixed to the side. Therefore, if the stopper 12 is installed in advance at a desired position, the trolley 3 can remain there even if the passenger car continues to descend during the lowering process of the passenger car.

On the lower right side of the underframe 4, there is a rail 1.
The bogie fall prevention member 14 attached to the side and the fitting member 1 that can be engaged and locked when brought into contact as described above.
There are 3. In the illustrated example, the protruding rod-shaped body of the truck overturn prevention member 14 fits into the flap-shaped opening of the fitting member 13. Therefore, the tension of wire rope A is
Even if applied from any direction via the dowel, it will not overturn the stopped cart 3. In addition, in the figure, 1
5 is a contact plate that can come into contact with the passenger car.

Next, an example of the use of this device will be explained with reference to Fig. 4. In this example, it is necessary to take measures to prevent the wire rope A from running out in the vicinity of point B where the track slope suddenly changes from 47° to 37°. Then, the wire rope A with one end fixed is passed through the feeding side insertion part of the trolley 3 and wound around the pulley 17 of the passenger car 16, and then passed through the hoisting side insertion part of the trolley 3 and wound around the hoisting drum of the hoisting machine 18. ing. When the passenger car 16 is stopped at a boarding area near the hoisting machine 18, the trolley 3 is connected to the passenger car 16 by the contact plate 15 coming into contact with the rear surface of the passenger car 16.

When the carriage lowering process by the hoist 18 is started, when the carriage 16 descends, the cart 3 also descends together with it due to gravity. However, when the track reaches near point B where the track gradient suddenly changes, only the bogie 3 stops as shown by symbol C, and only the passenger car 16 descends. As described above, the bogie 3 is stopped by the contact portion 11 of the bogie 3 hitting the stopper 12 installed on the rail 1 side in advance, and at this time, the fitting member 13 of the bogie 3 is placed on the rail 1 side. Installed trolley fall prevention member 1
4, no matter how the tension of the wire rope A is applied to the carriage 3 via the guide rollers 8, 8, 9, and 9, there is no risk of the carriage 3 falling. In this way, the wire rope A is prevented from getting loose, but when the passenger car 16 rises, it pushes the cart 3 and returns it to its original position.

One or more carts 3 are lined up behind the passenger cart 16,
When the carriage 16 is lowered, in order to make it stay in a predetermined position starting from the rearmost carriage 3, it is possible to prevent the carriage 16 from passing by by changing the height and mounting position of the stopper 12 and the carriage fall prevention member 14 as appropriate. It is necessary to allow the carts 3 that should be used to pass, and to stop the carts 3 that should be stopped.

<Effects of the invention> This invention allows the wire rope A to be inserted through a narrow space 10, 10 surrounded by two vertical and horizontal guide rollers 8, 8, 9, 9 which are rotatably provided above the rear of the trolley 3. Therefore, even if the wire rope A passes through the insertion part while rubbing against the insertion part, the wire rope A will not be damaged. Since the cart 3 is arranged behind the passenger car 16, even if the contact portion 11 of the cart 3 hits the stopper 12 and stops, the passenger car 16 can continue to descend. When the wire rope A goes up, it picks up the stopped trolley 3 and returns to its original position, so there is no hassle.As many trolleys 3 can be connected together, it is very convenient when you want to prevent the wire rope A from breaking at multiple locations. can be adapted. Moreover, since the fitting member 13 that cooperates with the trolley overturn prevention member 13 is provided, there is no risk of overturning no matter which direction the tension of the wire rope A is applied via the guide rollers 8, 8, 9, and 9. can.

[Brief explanation of the drawing]

Fig. 1 is a partially cut-away side view of the wire rope rash prevention device for lifting and lowering passenger cars according to this invention, Fig. 2 is its front view, and Fig. 3 is its plan view.
FIG. 4 is a diagram for explaining the operation. 1...Rail, 3...Dolly, 8, 9...Guide roller, 10...Narrow space surrounded by guide rollers,
11... Contact portion, 12... Stopper, 13...
Fitting member, 14... Cart overturn prevention member, 16...
Carriage, A...Wire rope.

Claims (1)

[Scope of utility model registration request] Two vertical and horizontal guide rollers 8, 8, 9, 9 are rotatably mounted on the left and right sides of the upper part of the rear of the trolley 3, which is arranged behind the passenger carriage 16 that can run freely on the rails 1, 1. These four guide rollers 8, 8,
A narrow space 10 surrounded by 9 and 9 is used as an insertion part for the wire rope A for raising and lowering the passenger car on the payout side and the hoisting side, respectively, and a stopper 12 attached to the rails 1 and 1 side is provided at the front of the trolley 3. A contact portion 11 is provided that can come into contact with the passenger car 16 during the lowering process.
A wire rope safety device for lifting and lowering a passenger car is provided at the lower rear portion thereof with a bogie fall prevention member 14 attached to the rails 1, 1 side and a fitting member 13 that can be engaged and locked when abutting as described above.