JPS5849455B2 - Bogie spacing adjustment device for intra-pipe transport equipment using forced air flow - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an intra-pipe transport device configured to forcibly move a cargo carrier along the pipe using forced airflow generated within the pipe as a thrust source. The present invention relates to bogie spacing adjustment technology.

Even if cargo transport carts are launched one after another at regular intervals within a conduit, if the conduit is long, the spacing between the carts may vary due to differences in the weight of the carts, variations in running resistance, aerodynamic drag coefficient, etc. may contract or expand abnormally, causing an inconvenient situation for the entire system.

As a method to avoid such abnormal approach or separation in the pipeline, there is a method to control the distance between the trolleys from the trolley side or the pipeline side using a certain method while the trolleys are running, depending on the control function. One possible method is to install a function in the storage section of the conduit that can absorb some discrepancies in the spacing between carts.
The former method requires a lot of auxiliary equipment and has the disadvantage of detracting from the intended advantages of the intra-pipe transport device, so the latter method is generally more developed.

As a mechanism for absorbing the slight deviation in the spacing between carts in the latter case, there are two methods: 1. Installing a sliding motor or conveyor for feeding the carts in the storage area where forced airflow does not work (see Figure 4), 2. Storage where forced airflow does not work. A method of keeping the section tilted to the ground and installing a mechanical stopper on the lower side in the transport direction (see Figure 2); A method of providing a pump and a switching valve (see FIG. 3) has been considered, but there are various problems with these methods as well.

That is, although the linear motor in method (1) has the advantage of being able to exhibit a sufficient trolley feeding effect for square pipes, it is difficult to use for round pipes, and , Conveyors can basically be fed by trolleys, but since they use pipes that are not subject to forced airflow, in other words, they use pipes that are in communication with the atmosphere, they require a sealed structure, which poses problems in terms of maintenance. .

Method (2) makes it possible to feed the carts by utilizing the slope of the conduit, but on the other hand, the accumulated energy (line pressure) of multiple carts stored in the storage section acts on the mechanical stopper and is likely to cause damage to the stopper. There are drawbacks.

In method (2), which uses an auxiliary pump, multiple carts are continuously fed forward, so the auxiliary pump requires the same capacity as the main pump. Although a plurality of carts are stored in the storage section, they cannot be continuously fed forward, resulting in an inconvenience that the cart feeding cycle becomes longer.

In view of the above points, the present invention makes effective use of the advantages of the above-mentioned methods to absorb some discrepancies in the spacing between carts, and at the same time, allows multiple carts stored in the storage section to be moved one by one starting from the first one. It is an object of the present invention to provide a bogie spacing adjustment device for an intra-pipe transportation device using forced airflow, which can transport materials to a predetermined location reliably, safely, and efficiently.

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

FIG. 1 shows a schematic side view of the entire pipe line 1 in which forced airflow is generated by a blower (not shown).
is installed by utilizing the space under the elevated structure, and the forced airflow causes the pressure receiving plate 4 and the running wheels 5, which have an area approximately comparable to the internal area of the pipe 1, as well as the collision mitigation against the bogie that protrudes in the front and rear directions. The cargo carrying cart 2, which is equipped with a tool 6 at the front and rear thereof, is configured to forcibly move along the inside of the pipe 1, and a pipe on the upper side in the transport direction is placed near the transport end of the pipe 1. One section is formed with an opening 7 for releasing forced airflow, and one section of the pipeline for storage of carts is formed, where the forced airflow does not act.
a, the upwardly inclined pipe section 1b and the second downwardly inclined pipe section 1c, and the upwardly inclined pipe section 1b is equipped with storage carts 2, one from the first one. Air flow inlet ports 3... which can be sent out sequentially are provided, and these air flow inlet ports 3... and the air flow inlet ports provided in the second downwardly inclined conduit portion 1c. An auxiliary pump 9 and a valve 10 are interposed between the auxiliary pump 9 and the valve 8, and
A detector 11 for detecting the presence or absence of the truck 2 in the ascending slope pipe section 1b corresponding to the airflow inlet 3.
... has been established.

In addition, 12A and 12B in the figure are slide-type valves that can completely close off the internal space of the second downwardly inclined conduit portion 1c.

Then, in response to the detection result of the detector 11..., the detector 1 of the valve 10...
At the same time as the valve 10 corresponding to No. 1 is opened, the valve 1 2A on the upper side of the conveyance is operated in the opening direction, thereby sequentially transporting the storage carts 2, one by one, starting from the first one. I am preparing to release it.

In summary, the present invention provides an intra-pipe transportation device that is configured to forcibly move a cargo carrier 2 along the pipe 1 using forced airflow generated in the pipe 1 as a thrust source. A pipe section 1A for bogie storage where the forced air flow does not act is formed in the middle or near the end of the pipe line 1, and one person in this pipe section is divided into a downwardly inclined pipe section 1a and an upwardly inclined pipe section 1b.
At the same time, in the upwardly inclined pipe section 1b, there is an airflow blowing port 3 that can sequentially send out the storage carts 2, one at a time, one at a time. By providing and configuring the system, the following effects were achieved.

That is, (a) First, even if there is a discrepancy in the spacing between the bogies 2 due to differences in weight, running resistance, aerodynamic drag coefficient, etc., there is no need to place a stop in the middle or near the end of the conduit 1. The trolley 2 that has been propelled to the pipe section 1A is sent to a predetermined location for storage using the clavities of the downwardly inclined pipe section 1a and the upwardly inclined pipe section 1b, and then stored. . . . can be sent out one by one from the first one, and it is possible to absorb discrepancies in the spacing between the trolleys during travel and ensure reliable and smooth transportation within the pipeline.

(Explanation) Since the storage carts 2... are sent out one by one starting from the first one, the amount of forced airflow that accompanies sending out the storage carts 2 can be reduced, allowing for small-capacity In addition to being able to perform a sufficient trolley delivery function using the pump, (c) braking and stopping the trolley 2 can be performed without contacting it, so there is no need to provide a mechanical stopper, and the cost of ancillary equipment can be reduced. We were able to do this.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the bogie interval adjustment device in the forced air flow intra-pipe transportation device according to the present invention, FIG. 1 is a schematic side view of the main part, and FIGS. 2 to 4 respectively show the conventional structure. FIG. 1... Conduit, 1 person... Conduit section for trolley storage, 1a... Downward slope conduit section, 1b...
... Rising inclined pipe section, 2... Luggage transport trolley, 3... Airflow inlet.

Claims (1)

[Claims] 1 In an intra-pipe transportation device configured to forcibly move a load carrier 2 along the pipe 1 using forced airflow generated in the pipe 1 as a thrust source, , a pipe section 1A for bogie storage where the forced air flow does not act is formed near the terminal end, and this pipe section 1A is composed of a downwardly inclined pipe section 1a and an upwardly inclined pipe section 1b, and In the ascending inclined pipe section 1b, there are storage carts 2 and 2.
. . . Bogie spacing adjustment in an intra-pipe transport device using forced air flow, characterized in that it is provided with an air flow blowing port 3 that can sequentially send out the first one one by one. Device.