JPH0825454B2 - Self-propelled truck running equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to traveling equipment for traveling a self-propelled carriage in a space closed to the outside, and more particularly to transporting a weakly acidic substance that causes corrosion. It relates to the traveling equipment of a self-propelled carriage suitable for.

2. Description of the Related Art Conventionally, various traveling facilities for traveling a self-propelled vehicle in a space closed to the outside have been known in order to convey radioactive substances, bio substances and the like.

When a weakly acidic substance or the like is transported by such traveling equipment, not only the self-propelled carriage but also the equipment itself in the closed space is adversely affected by corrosion or the like. Conventionally, in order to prevent this, it has been necessary to take measures such as anticorrosion treatment for the entire equipment existing in the closed space including the self-propelled carriage.

SUMMARY OF THE INVENTION Therefore, the conventional countermeasures against corrosion and the like are extremely costly, and in some cases, corrosion resistance treatment or the like cannot be performed depending on the structure of equipment.
For this reason, there is a demand for the development of a self-propelled trolley traveling facility suitable for transporting a substance such as a weakly acidic substance which adversely affects the traveling facility.

An object of the present invention is to provide a self-propelled vehicle traveling facility that meets such a demand.

Means for Solving the Problems In order to achieve this object, the present invention divides a traveling space that is in a closed state with respect to the outside into upper and lower portions with a partition wall, and an upper space serves as a traveling space for traveling by a self-propelled carriage. The lower space is connected to the self-propelled carriage by a connecting member, and the driven carriage in which a member in the traveling space is adversely affected by chemicals or the like is driven for traveling according to the traveling of the self-propelled carriage. The partition wall has a communicating portion such as a plurality of slits or through holes for communicating the upper space and the lower space, and gas can pass from the upper space to the lower space. A non-return valve provided in the communication part that prevents gas from passing through the space and a penetrating part extending in the traveling direction for allowing the connecting member to penetrate tightly are provided while passing through the communicating part. From the upper space A gas circulation mechanism for circulating a gas such as air to the lower space is provided, and a plurality of processing chambers for processing a conveyed object are tightly connected to appropriate places in the lower space. More preferably, the communication part is configured so that the flow rate of gas can be adjusted.

Action The upper space in which the self-propelled vehicle travels and the lower space in which the driven vehicle on which the conveyed object is traveling travel are partitioned by partition walls, and from the upper space toward the lower space, through a communication part provided in the partition wall. Since the gas circulates, the upper space is not adversely affected by the chemical influence of the conveyed product. Therefore, it is sufficient to take measures such as anticorrosion treatment only for the lower space having a simple structure.

Example Hereinafter, a preferred example of the present invention will be described with reference to the accompanying drawings.

Here, FIG. 1 is a schematic plan view showing the entire equipment, FIG. 2 is a vertical sectional front view showing the inside of the traveling space, and FIG. 3 is a vertical sectional side view.

As shown in FIG. 1, a self-propelled carriage 1 and a driven carriage 2 (second
(See FIG. 3 and FIG. 3), the transport path 3 forming a travel space that is a space closed to the outside is provided with a pretreatment chamber 4 and a plurality of pretreatment chambers with respect to a lower space thereof described later. The sample analysis / inspection chamber 5 and the waste treatment chamber 6 are connected in an airtight state at right angles to the traveling direction, and a maintenance chamber 7 is provided at the end of the traveling direction. In the pretreatment chamber 4, there is a receiving station 8a of a known air transfer system.
The receiving station 8a is connected to a plurality of transmitting stations 8b via pneumatic tubes 8c.

Then, the air carrier (not shown) containing the sample of the weakly acidic substance or the like transmitted from the transmitting station 8b is received by the receiving station 8a, and in the pretreatment chamber 4,
It is configured so that the received sample in the air carrier is distributed to an appropriate container, is subjected to an appropriate pretreatment, is transferred to an appropriate container, or is distributed, and then this container is mounted on the driven carriage 2. There is. The container P containing the sample mounted on the driven cart 2 is carried to a predetermined sample analysis / inspection room 5,
After the desired analysis, inspection, etc. have been performed in the sample analysis / inspection room 5, the sample analysis / inspection room 5 is mounted again on the driven vehicle 2 and transported to the waste treatment room 6 where it is disposed of. Also, maintenance room 7
Is equipment for maintaining and managing the self-propelled carriage 1 and the driven carriage 2.

As is clear from FIG. 2 and FIG. 3, the transport path 3 is divided into upper and lower spaces by partition walls 9, while the upper and lower spaces are divided into appropriate lengths provided in the partition walls 9 so as to extend in the traveling direction. It is communicated by the slit 10. Further, each slit 10 is provided with a check valve 11 which allows only air to flow from the upper space to the lower space. The slit 10 provided with the check valve 11 constitutes a communication portion. A through slit 15 is formed in the center of the partition wall 9 in the width direction, and lip packings 16a and 16b are provided over the entire length of the through slit 15 and are normally in a sealed state. And this lip packing 16a, 16b
The penetrating portion is constituted by the penetrating slit 15 provided with.

Next, the gas flow mechanism will be described. As shown in FIGS. 2 and 3, intake ports 12 having filters are provided at a top plate portion of the upper space at predetermined intervals in the traveling direction, while an exhaust branch pipe is provided at a bottom plate portion of the lower space. 13 are also provided at predetermined intervals in the traveling direction, and these exhaust branch pipes
13 is connected to an exhaust main 14 equipped with an exhaust filter (not shown) which is connected to a suction blower (not shown).
Therefore, the suction port 12 is activated by the operation of the suction blower.
The air flow from the upper space, the slit 10, the lower space, and the exhaust branch pipe 13 to the exhaust main pipe 14 is formed.

As can be understood from FIG. 2, the pretreatment chamber 4, the sample analysis / inspection chamber 5, and the waste treatment chamber 6 are connected to the corresponding lower space portions via bellows-like connecting members 34, and are connected to each other. Shutter member that can move up and down according to the opening
35 is provided and normally closed. Although not shown, the pretreatment chamber 4, the sample analysis / inspection chamber 5, and the waste treatment chamber 6 described above are provided with working robots, such as devices such as manipulators.

The traveling path of the traveling carriage 1 is provided in the upper space, and as shown in FIGS. 2 and 3, a support plate 17 fixed to the inside of the top plate of the conveying path 3 is provided with guides having U-shaped cross sections on both sides. Two rails 20a, 21b and two signal rails 22a are provided so that the portions 18a, 18b are provided so as to face each other, and a traveling rail 20 having a traveling surface 19 is fixed, and the traveling surfaces 19 extend in parallel with each other. , 22b are fixed. Although not shown, a positioning device and various sensors for controlling running and stopping of the traveling vehicle 1 are provided in the upper space.

As shown in FIGS. 2 and 3, the self-propelled carriage 1 traveling on this traveling path has two pairs of guide wheels 24a, 24b, 24c (however, one guide wheel is rotatably supported by the vehicle body 23). (Not shown) is guided by the guide portions 18a, 18b of the traveling rail 20. The drive wheels 25 attached to the output shaft (both not shown) of the speed reducer integrally provided with the drive motor (not shown) installed in the vehicle body 23 are the traveling rails.
It is pressed against the traveling surface 19 of 20 by the elastic force of a spring (not shown). Sliding contacts 26a, 26b on the drive motor
Power is supplied from the power supply rails 21a and 21b via the control rails, and control signals due to current changes are supplied from the signal rails 22a and 22b via the slide contacts 26c and 26d. As a result, the drive motor is driven and controlled, and its rotational drive force is transmitted to the drive wheels 25 via the speed reducer, and the propelling force of the drive wheels 25 guides the self-propelled carriage 1 to the guide portions 18a, 18b. Meanwhile, the traveling rail 20 travels in a suspended state.

As shown in FIGS. 2 and 3, the traveling path of the driven vehicle 2 is provided in the lower space, and a guide rail 28 having rising portions on both sides is provided on a support plate 27 fixed inside the bottom plate of the transport path 3. Is fixed and configured. The equipment in the lower space, including the inner wall surface of the transport path 3, is subjected to appropriate countermeasures such as corrosion resistance according to the sample. The driven carriage 2 traveling on this traveling path has a horizontal mounting portion 30 of the vehicle body 29.
A pair of guide wheels 31a, 31b rotatably supported in front of and behind the vehicle
While being guided by the guide rail 28, a connecting rod 33, which is a connecting member for connecting to the traveling carriage 1, is vertically provided at the upper end of the vertical portion 32 of the vehicle body 29. The connecting rod 33 has a streamline cross-section, penetrates the through slit 15 so as to push open the lip packings 16a and 16b, and is fixed to the lower surface of the vehicle body 23 of the traveling carriage 1. by this,
The driven vehicle 2 moves as the traveling vehicle 1 travels.

Next, the sample transport operation in the above-described embodiment will be described.

A sample (not shown) containing a sample, for example, a sample of a weakly acidic substance, conveyed from an appropriate transmitting station 8b through the pneumatic tube 8c is received by the receiving station 8a in the pretreatment chamber 4. And operating the work robot in the pretreatment chamber 4 to distribute the received sample in the air carrier to an appropriate container according to the purpose, or to perform an appropriate pretreatment and transfer it to an appropriate container. Or, after distributing, the container P is mounted on the mounting portion 30 of the driven carriage 2. Here, as the traveling carriage 1 travels to a position corresponding to the predetermined sample analysis / inspection room 5, the driven carriage 2 is also moved to the predetermined sample analysis / inspection room 5 together with the traveling carriage 1. Then, the container P containing the sample mounted on the driven cart 2 is gripped by the work robot whose shutter member 35 is opened and extended, and is taken into the predetermined sample analysis / inspection chamber 5 for desired analysis. , Inspections are performed. After the work is completed, the container P is mounted on the mounting portion 30 of the driven vehicle 2 again, and the traveling vehicle 1 travels to the position corresponding to the waste treatment chamber 6 to discard the container P in the same manner as described above. It is taken into the material processing chamber 6 and is disposed of here.

In transporting such a container P, the connecting rod 31 penetrates the partition wall 9 that divides the upper space and the lower space, but the lip packings 16a and 16b keep the sealed state, while operating a suction blower (not shown). Then, by making the inside of the conveying path 3 into a negative pressure state, the air from the intake port 12 to the upper space and the slit
10. An air flow can be formed through the lower space and the exhaust branch pipe 13 to the exhaust main pipe 14. Therefore, since clean air always flows into the upper space from the outside and air does not flow backward from the lower space, the sample in the container P located in the lower space is a weak acidic substance or the like. However, the adverse effect does not reach the upper space.

It should be noted that the present invention is not limited to the above-described embodiment, and for example,
If the mounting unit 30 of the driven vehicle 2 is composed of a turntable,
A container P accommodating a plurality of samples can be conveyed at the same time, and a predetermined container P can be taken into each predetermined sample analysis / inspection chamber 5. Further, the driven carriage 2 may be provided with a retractable gripping device such as a manipulator so that the container P can be delivered to the sample analysis / inspection chamber 5. Furthermore, traveling carriage 1
The configuration of and the configuration of each traveling path are not limited to the above-described embodiment, and can be changed. Further, the cleanliness in the upper space does not have to be high, and it is sufficient if the backflow from the lower space can be prevented by the air flow. Furthermore, the slit 10 may be provided with a valve capable of adjusting the air flow rate, or the opening area of the slit 10 may be increased or decreased to adjust the air flow rate. Furthermore, the communicating portion may be replaced with the slit 10 and a through hole may be adopted. Furthermore, as the gas flowing in the transport path 3, in addition to air, an inert gas such as helium gas or argon gas can be used.

Effects As is clear from the above description, according to the present invention, the upper space in which the self-propelled vehicle travels and the lower space in which the driven vehicle that carries the transported object travels are partitioned by partition walls, and the upper space is used to Since the gas is configured to flow toward the lower space through the communication part provided in the partition wall, the upper space is not adversely affected by the chemicals of the conveyed product, and the structure such as anticorrosion treatment is simple. Since it suffices to target only the lower space, the maintenance management is easy and the manufacturing cost of the equipment can be reduced.

[Brief description of drawings]

1 shows a preferred embodiment of the present invention, FIG. 1 is a schematic plan view showing the entire equipment, FIG. 2 is a vertical sectional front view showing the inside of a running space, and FIG. 3 is a vertical sectional side view. Is. 1 ... self-propelled trolley, 2 ... driven trolley, 3 ... transport path, 4 ...
… Pretreatment room, 5 …… Sample analysis and inspection room, 6 …… Waste disposal room, 7 …… Maintenance room, 9 …… Differential partition, 10 …… Slit, 11 …… Check valve, 12 …… Intake port, 13 ... Exhaust branch pipe,
14 …… Exhaust main, 15 …… Through slit, 16a, 16b …… Lip packing, 20 …… Running rail, 23 …… Car body, 24a, 24
b, 24c …… Guide wheel, 25 …… Drive wheel, 28 …… Guide rail, 29 …… Car body, 30 …… Mounting part, 31a, 31b …… Guide wheel, 33 …… Coupling rod

Claims (2)

[Claims] 1. A traveling space that is closed to the outside is divided into upper and lower parts by partition walls, an upper space is a traveling space for traveling of a self-propelled carriage, and a lower space is connected to the self-propelled carriage by a connecting member. At the same time, the driven vehicle equipped with the transported material that adversely affects the members in the traveling space becomes a traveling space for traveling according to the traveling of the self-propelled vehicle, and the partition wall has an upper space and a lower space. And a communication part for communicating between the upper space and the lower space that allows gas to pass therethrough, and conversely a gas that cannot flow from the lower space to the upper space, which is a check provided in the communication part. A valve and a penetrating portion extending in the traveling direction for tightly penetrating the connecting member are provided, while a gas circulation mechanism for circulating gas from the upper space to the lower space through the communication portion is provided. , Again Autonomous guided vehicle traveling equipment in which a plurality of processing chambers for performing a process is characterized in that it is tightly connected to an appropriate position of the lower space. 2. The self-propelled vehicle traveling equipment according to claim 1, wherein the communication portion is configured to be capable of adjusting the flow rate of gas.