JPS5848445B2 - Bogie braking device for forced air pipe conveyance equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forced air flow type intra-pipe conveyance device configured to cause a cargo carrier to travel along the pipe by using forced air flow generated within the pipe.

As a method of braking and stopping a load carrying trolley that has been propelled along a pipe, at the end of the transport or in the middle of the pipe, air between the cart and a shielding plate provided at the end of the transport or in the middle of the transport is used. There is a method of braking and stopping by using the so-called air cushion effect, which compresses the column as the trolley moves, but this method is difficult to brake due to the large pressure difference between the front and rear of the trolley in the case of high-speed transportation. There are many problems in practical use, such as the large shock when stopping and the unloading of transported objects.

Therefore, in order to brake and stop a cargo transport trolley with less shock, it is sufficient to decelerate the trolley at a constant acceleration.If deceleration braking at this constant acceleration is achieved, simulation of the operation of the trolley, It becomes easier to design and manufacture various types of equipment, and the equipment as a whole can be expected to have multiple benefits.

Such deceleration braking at a constant acceleration is theoretically possible, for example, by applying gravity braking using the upward slope of the pipeline, or by applying braking using a linear motor, but these methods However, it is extremely difficult to realize this as a practical matter due to the installation of the system, the shape of the pipelines, and ancillary equipment.

In view of the above points, the present invention uses a valve to always maintain the pressure difference before and after the bogie in a constant state, thereby enabling forced deceleration braking at a constant acceleration with a simple structure. It is an object of the present invention to provide a bogie braking device for an air flow type intra-pipe transfer device.

Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a schematic diagram of the main part, and FIG. 2 is an enlarged cross-sectional view of the main part, where 1 is a pipe installed using the space under the elevated structure, and 2 is the A cargo transport device having a pressure receiving plate I formed to have a diameter smaller than the inner diameter of the pipe line 1, a running wheel 8 that slides and rolls on the inner wall of the pipe line 1, and a collision mitigation device 9 for a bogie that protrudes in the front and rear direction. The truck is a truck that is propelled along the axis of the pipe 1 by forced airflow generated in the pipe 1 by blowers (not shown) installed at appropriate intervals in the longitudinal direction of the pipe 1. Along with the structure,
During the conveyance of the pipe 1, an air cylinder 13.
Valves 4, 4 that can be slid in a direction perpendicular to the conduit 1 by 13' to completely close off the internal space of the conduit 1;
A bogie braking pipe 1A having a diameter of A linear actuator 10 is installed in the opening path 5A.
A constant pressure valve 6 is provided, which is made up of an aluminum rod 11 that can move vertically along the inside of the linear actuator 10 and a resistance plate 12 provided at the lower end of the aluminum rod 11. The resistance plate 12 of the constant pressure valve 6 is formed by pushing up the air between the pressure receiving plate 7 of the truck 2 and the valve 4, which is compressed as it moves into the pipe line 1A. The pressure is blown out through the gap with the tapered pipe 5 to keep the pressure difference between the front and back of the truck 2 constant.

As described in detail above, the bogie braking device in the forced air flow type intra-pipe conveyance device according to the present invention has the forced air flow diversion port 3 at the inlet point at the end of the conveyance of the pipe line 1 or in the middle of the conveyance,
In addition, a bogie braking conduit 1A having a closing wall 4 at its terminal end is formed in communication with the bogie braking conduit IA, and an atmospheric opening conduit 5A expanding outward through a tapered pipe 5 is provided near the terminal end of this bogie braking conduit IA.
The braking pipe 1 is provided in the atmospheric opening passage 5A.
By providing a constant pressure valve 6 whose opening/closing amount can be controlled in order to always maintain a constant pressure difference between the front and rear of the cart 2 that moves after moving into the person's body, the moving of the cart 2 into the braking pipe 1A is made possible. The air between the truck 2 and the blocking wall 4, which is compressed as a result of The pressure difference between the front and rear can be kept constant at all times.

If lj' is changed, a constant braking force is applied to the truck 2 to enable deceleration braking at a constant acceleration.

Therefore, it is possible to achieve a safe and smooth braking stop IL of the trolley 2 with less shock even though the transport is carried out at high speed.

Moreover, since it is possible to brake the bogie at a constant acceleration as described above with a simple structure such as providing the constant pressure valve 6 and the tapered pipe 5, the overall cost is low considering the design, manufacturing, and construction conditions of various incidental equipment. We were able to implement the system and make it a reality.

Incidentally, although numbers are written in the claims section for convenient comparison with the drawings, the present invention is not intended to be realized in the structure of the attached drawings by these entries.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the bogie braking device in the forced air flow type intra-duct conveyance device according to the present invention, with FIG. 1 being a schematic side view and FIG. 2 being an enlarged cutaway side view of the main parts. 1... Conduit, 1A... Trolley braking conduit, 2... Load carrying trolley, 3... Forced airflow escape port, 4... ...Closing wall, 5...Tapered pipe, 5A...Atmospheric opening path, 6...
・Constant pressure valve.

Claims (1)

[Claims] 1. The conveyance end portion of the pipe line 1 in a forced air-type intra-pipe conveyance device configured to cause the load carrying cart 2 to travel along the pipe line 1 using forced air flow generated within the pipe line 1; A bogie braking conduit 1 having a forced airflow relief port 3 at its inlet midway and a closing wall 4 at its terminal end.
An atmospheric opening passage 5A is provided near the end of the bogie braking pipe 1A, and expands outward via a tapered pipe 5. A trolley braking device for a forced air flow type intra-duct conveyance device, characterized in that a constant pressure valve 6 whose opening/closing amount can be controlled is provided in order to always maintain a constant pressure difference between the front and rear of the trolley 2 moving in a forced air flow type conduit conveyance device.