JPH08164785A - Hose carrying device - Google Patents

Abstract

PURPOSE: To make a hose passable after being bent even in a winding carrying path by connecting plural units of trucks with a latch holding the hose mounted on a semicircular recess-form loading space plane in series with a connecting rod capable of turning it around left and right, and installing both direction indication and detection command means for traction. CONSTITUTION: Both right and left turn magnetic plates 82 and 83 are set up in the bend of a carrying path 10, and a magnetic sensor 81 is installed in the lower part of a carriage 30. When magnetism is detected, an electric signal is fed to a solenoid 71 by way of a converter. As to a train of carriages 30 mounted a hose 29 secured with two latch fittings 36, when the forefront carriage 30 is reached onto the left turn magnetic plate 82 being set up at this side of the bend and the magnetic sensor 81 detects magnetism of the magnetic plate 82, the solenoid 71 bends a spool of a selector solenoid valve 70, and it is connected to a left chamber of a cylinder 61 of a pressure cylinder 60, and the return side is connected to a right chamber, so that a piston 62 is pressed to the right, therefore the forefront carriage 30 is turned around in the counterclockwise direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose carrying device for carrying a hose having a predetermined large diameter through a predetermined carrying path.

[0002]

2. Description of the Related Art A conventional means for carrying a large-diameter hose having a diameter of 600 mm, which is used in, for example, an oil storage base, is a single or plural self-propelled or towed large-diameter hose. Although it is carried on an appropriate trolley, it is difficult to bend such a large-diameter hose even if it is mounted on multiple trolleys. The crane is used for fishing and passing through a bend in the transportation route.

[0003]

The conventional hose carrier is as described above, and since such a large-diameter hose is difficult to bend and is long and heavy, a large crane should be used at the bent portion of the carrier path. Although it is used, there was a problem that it took many things, people, and time to carry it. If the entire route is carried while being caught by a crane, it requires a large amount of manpower, time and safety problems. Therefore, there has been a problem in that it is desired to transport the entire route in a state where the hose is laid down in a stable and hassle-free manner.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to carry the entire route by curving the hose and passing it even at a bent portion of the carrying path while keeping the hose lying in a stable state. The purpose is to obtain a hose carrier that can

[0005]

A hose carrier according to the present invention is provided with a semicircular concave loading platform surface on which a hose is placed, and a holding frame capable of opening and closing and holding the hose placed on the loading platform surface. A plurality of carriages and a connecting rod for connecting the carriages in series so that the direction of the carriages can be changed left and right,
Direction changing means provided between the connecting rod and the carriage for changing the horizontal direction of the carriage, direction indicating means provided on a transportation path through which the carriage passes, and the direction indicating means for detecting the direction. The detection command means operates the direction changing means, and the pulling means pulls the row of the carriages connected by the connecting rod.

[0006]

When a plurality of carriages of the hose carrier according to the present invention are connected to each other by connecting rods to form a row of carriages, the hoses are placed on the loading surface of each carriage, and the hoses are placed on the carriages to lock them. , Each cart shares the load of the hose and supports it stably. If this carriage line is towed by a towing means, it can be transported safely. When passing through a bent portion of the transportation path, the detection command means detects the direction indicating means provided in the transportation path and instructs the direction changing means, and the direction changing means changes the direction of the carriage to thereby change the direction of the carriage. The direction of is changed to right or left. When the direction of the trolley changes, the hose that is placed on the surface of the semi-circular concave shape of each trolley and placed and covered by the restraining frame to be restrained is also forced to bend by the trolley. The hose can be bent at the bent portion of the transportation path by changing the direction of each carriage that passes through the bent portion of the transportation path as the vehicle advances, so that the hose can safely pass through the bent portion of the transportation path.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 20 is a large-diameter heavy-weight hose having a diameter of 600 mm and a length of 10 m, which is used in an oil storage terminal or the like. Reference numeral 10 is a transportation path for carrying the hose 20, and the transportation path 10 has a bent portion. 30 is a carriage for mounting the hose 20, 51 is a connecting rod for connecting the carriage 30, 60 is a pressure cylinder for changing the direction of the carriage 30, 70 is a switching solenoid valve for switching the flow direction of the fluid flowing in and out of the pressure cylinder 60, and 90 is It is a tow vehicle towing a row of trucks 30 connected in series by a connecting rod 51.

As shown in FIG. 1C, a semicircular concave shape or a concave shape is formed on the upper surface of the carriage 30 in accordance with the outer diameter of the hose 20 so that the large diameter hose 20 to be transported can be surely placed. A semi-polygonal loading platform surface 3a is formed, and a similar semi-circular concave or semi-polygonal restraining frame 35 is attached to the hanger 36 so as to cover and suppress the hose 20 placed on the loading platform surface 3a. It is provided so that it can be opened and closed with. Latch 36 is any suitable combination of studs and wing nuts. The latches 36 may be provided on both sides of the holding frame 35, or one of them may be a hinge. As will be described later, since the hose 20 is forcibly bent by changing the direction of the carriage 30 at the bent portion of the transportation path 10, the hose 20 having a strong elastic repulsion force when being bent is disengaged from the loading platform surface 3a. In order to prevent it from occurring, it is necessary to make the latches 36 and the like strong to some extent. Further, it is more preferable that a suitable cushion material is stretched over the cargo bed surface 3a and the inner peripheral surface of the holding frame 35 so as not to damage the hose 20.

As shown in FIG. 1, one or a plurality of wheels 38, which are freely rotatable, are provided on the left and right sides of the carriage 30, respectively.
Is provided. The front and rear connecting rods 51 that connect the dolly 30 are horizontally rotatably connected to a dolly connecting shaft 53 that is vertically provided at the center of the dolly 30. Therefore, even if tension is applied from the connecting rod 51, the carriage 30 can freely change its direction from side to side. However,
As shown at the right end of (B), a connecting rod 51 is fixedly connected to the rearmost truck 30 in the row.

As shown in FIG. 1 (B), a side arm 52 is formed on one side from the middle of the connecting rod 51, and a steering wheel 39 is attached to the same side of the carriage 30 as the side arm 52. 5
A pressure cylinder 60 is provided between 2 and the steering wheel 39. In the pressure cylinder 60, the rear end of the cylinder 61 is attached to the tip of the side arm 52 via a pin 65, and the tip of the piston rod 63 is attached to the tip of the rudder 39 via a pin 66 for connection. As shown in FIG. 1D, in the cylinder 61, a spring 67 that pushes the piston 62 to the left in the figure and a spring 68 that pushes the piston 62 to the right in the figure.
In the state of no pressure, the piston 62 tends to return to the center position of the cylinder 61.

Further, as shown in FIG. 1D, each fluid pipe communicating with the left and right chambers partitioned by the piston in the cylinder 61 of the pressure cylinder 60 is connected to the hydraulic pressure not shown via the switching solenoid valve 70. The pressure source P of the air pressure (compressed air) is switched and connected to the pressure side P or the return side T. The switching solenoid valve 70 is, for example, a 4-port 3-position double solenoid spring center switching valve. The switching solenoid valve 70 connects both pipe lines to the return side T at the center position b, connects the left side chamber of the cylinder 61 to the pressure side P and the right side chamber to the return side T at the a position, and the cylinder 61 at the c position. Right side chamber is pressure side P
The left chamber is connected to the return side T. The hydraulic or pneumatic pressure source may be mounted on, for example, a tow vehicle 90, and the fluid pressure may be connected to a pressure cylinder 60 of each subsequent truck 30 by connecting the fluid pressure with a hose having a small diameter.

As shown in FIG. 1 (A), a left-side magnetic plate 82 and a right-side magnetic plate 83 are installed at the bent portion of the transportation path 10, and a magnetic sensor 81 is provided at the bottom of the carriage 30. ing. The magnetic plates 82 and 83 are 50 above the surface.
It is a plate-shaped permanent magnet that can detect a magnetic flux density of 4 Gauss or more at a position of mm. The left magnetic plate 82 and the right magnetic plate 83 have opposite magnetic flux directions. Magnetic sensor 81
Is the truck 30 so that the position below 50 mm on the road surface is maintained.
Is attached to the bottom of the. Magnetic sensor 81 is 4
When a magnetism of about Gauss is detected, when the magnetism is detected, an electric signal is sent to a converter (not shown), and the converter sends it as a current of a predetermined direction and strength to a solenoid 71 of a switching solenoid valve 70 through an amplifier (not shown). It is composed.

Next, the operation of the embodiment shown in FIG. 1 will be described. As shown in FIGS. 1 (A) and 1 (B), a required number of trucks 30 for the length of the hose 20 to be transported are connected by a connecting rod 51 to form a row of trucks 30. Next, FIG.
As shown in (A) and (C), the cargo bed surface 3 a of each carriage 30
The hose 20 is placed on top of the hose 20, and the hose 20 is placed on the hose 20 and is covered with the holding frame 35. The above work is performed at the location of the straight transportation path 10.
Now that it is ready to be transported, the truck 3 at the top of the tow truck 90
You can move by pulling 0.

When moving along the straight transport path 10, the
In (D), the switching solenoid valve 70 is at the center b position, and the left and right chambers in the cylinder 61 of the pressure cylinder 60 are both connected to the return side T and there is no pressure.
2 stops at the central position, which is the equilibrium position of springs 67 and 68. At the center position of this pressure cylinder 60, FIG.
As shown in, the carriage 30 and the wheels 38 are straightened to the connecting rod 51, and each carriage 30 goes straight. Further, since the hose 20 also has a strong elastic tendency to straighten, the hose 20 also tends to go straight.

Next, the operation when the row of the trolleys 30 on which the hoses 20 are placed passes through the bent portion of the transportation path 10 will be described. In FIG. 1 (A), the leading carriage 30 reaches the left-side magnetic plate 82 installed on the front side of the bent portion of the transportation path 10, and in FIG. 1 (C), the leading carriage 30 is reached.
When the magnetic sensor 81 detects the magnetism of the left-side magnetic plate 82 as having a magnetic flux density in a predetermined direction of, for example, 4 Gauss or more, the signal is expressed as a current flowing in the predetermined direction via a converter and an amplifier (not shown). 1 (D), the solenoid 7 of the switching solenoid valve 70 is sent to the solenoid 7
1 generates an electromagnetic force to set the spool of the switching solenoid valve 70 to the a position. Then, the pressure side P of the pressure source (not shown) is connected to the left chamber of the cylinder 61 of the pressure cylinder 60, and the return side T is connected to the right chamber of the cylinder 61.
Is pushed to the right, and in FIG. 1 (B), the rudder handle 39 is pulled to the right through the piston rod 63 and the pin 66, and the leading carriage 30 moves counterclockwise about the carriage connecting shaft 53. change.

The leading carriage 30 whose direction has been changed is shown in FIG.
In FIG. 2A, the controller of the converter (not shown) is set to maintain the changed direction after passing through the left-side magnetic plate 82 and reaching the right-side magnetic plate 83. Thus, the traveling directions of the carriage 30 at the front and the connecting rod 51 subsequent thereto gradually change. Top trolley 30
The right magnetic plate 83 is installed at a position where the advancing direction of the connecting rod 51 following is the new linear direction of the bent transportation path 10, and the leading carriage 30 reaches the right magnetic plate 83 and When the magnetic sensor 81 detects the magnetism of the right-side magnetic plate 83 (the magnetic flux in the direction opposite to the direction of the magnetic flux of the left-side magnetic plate 82), the magnetic sensor 81 sends the signal to a converter (not shown) and causes it to pass through an amplifier. 1 (D), the solenoid 71 of the switching solenoid valve 70 is returned to the neutral position, the left and right chambers in the cylinder 61 are both connected to the return side, and the spring 68
Thereby, the piston 62 is returned to the central position, and the carriage 30 is returned in the straight direction. Further, the truck 30 is returned in the straight direction by the elastic restoring force of the hose 20 which tends to straighten the hose 20.

As for the second and subsequent trolleys 30, as in the case of the leading trolley 30, in FIG. 1A, each trolley 30 travels straight until it reaches the left-side magnetic plate 82, and then the left-side magnetic field. By changing the direction between the plate 82 and the rightward magnetic plate 83 and returning to the straight direction when reaching the rightward magnetic plate 83, the row of the trucks 30 passes through the bent portion of the transportation path 10. To do. Since the hose 20 mounted on the carriage 30 is forcibly bent by changing the direction of the carriage 30 when passing through the bent portion of the carriage path 10, the bending angle or the bending of the bent portion of the carriage path 10 is changed. Of course, the curvature must be within the bendable limit of the hose 20.

When the bending direction of the transportation path 10 is the opposite direction to the above, that is, when traveling from left to right in FIG. 1 (A), the magnetic flux direction of the right-side magnetic plate 83 is the left-side magnetic plate. The magnetic sensor 81, which is the opposite of 82, detects a current in the opposite direction to the above in FIG.
The solenoid is sent to the solenoid 71 of the switching solenoid valve 70, the spool moves to the position c of the switching solenoid valve 70, the pressure side is connected to the right chamber of the cylinder 61, and the piston 62 and the piston rod 6 are connected.
3 is pushed to the left, and in FIG. 1 (B), the carriage 30 changes its direction clockwise around the carriage connecting shaft 53.

1B and 1D, the spool of the switching solenoid valve 70 is normally in the central position b, and the piston 62 of the pressure cylinder 60 is free except for being pushed by the spring 67 and the spring 68. Therefore, the carriage 30 can freely change the direction to the right or left at a small angle to some extent. Therefore, at the loosely bent portion of the transportation path 10, if the leading carriage 30 changes its direction by being pulled by the towing vehicle 90, the hose 20 mounted on the leading carriage 30 is also curved, and the hose 20 mounted on the leading carriage 30 is curved as it progresses. Do the same for the truck 30 and the hose 20,
It can pass through a loose bend in the transport path 10.

Upon arrival at the destination of transportation, FIG. 1 (C)
At, in order to remove the latch 36, open the holding frame 35,
The hose 20 may be removed from the dolly 30. Depending on the situation, it may be possible to use or store the hose 20 while it is mounted on the carriage 30.

FIG. 2 is a plan view showing a state in which the carriage 30 of the hose carrier according to the embodiment of the present invention changes the direction at the bent portion of the carrier path 10. A1 and b1 of the truck 30 are connected by a connecting rod 51. When the magnetic sensor 81 of a1 detects the magnetism of the left-side magnetic plate 82 by proceeding to the left in the figure, the carriage 30 changes its direction to the left as indicated by a2.
While a2 and b2 proceed to proceed from a3 and b3 to a4 and b4, b goes straight until it reaches the left-side magnetic plate 82, a gradually changes its direction, and when it reaches the right-side magnetic plate 83, it becomes a new course direction. move on. b also changes its direction when it reaches the left-side magnetic plate 82.

FIG. 3 is a plan view showing a state in which the hose carrier according to one embodiment of the present invention is passing through the bent portion of the carrier path 10. The radius of curvature that can bend the hose 20 is about 3200 mm, and various requirements related to the change in the direction of the carriage 30 are planned.

In the explanation of the embodiment shown in FIG. 1,
Although the fluid pressure drive device having the pressure cylinder 60 and the switching solenoid valve 70 is shown as the direction changing means for changing the direction of the carriage 30, for example, a direction changing device in which an electric motor and a gear device are combined can be adopted. .

In the explanation of the embodiment shown in FIG. 1,
The magnetic plates 82 and 83 are shown as the direction indicating means, and the magnetic sensor 81 is shown as a means for detecting them. For example, a convex line or a concave line indicating the course is provided in the course and the contact is provided on the carriage 30. A mechanical guiding means that advances while detecting with a child, or a method of continuously showing a course by magnetism, detecting the course shown by this magnetism, and correcting if it deviates from the course, or showing it with electromagnetic waves It is also possible to use a method of detecting it and correcting it if it is out of the course, or a method of indicating the course with a white line on the transport path 10 and detecting it with light (laser light) to correct it if it is out of the course. .

In the explanation of the embodiment shown in FIG. 1,
Although the towing vehicle 90 is shown as the towing means, for example, a method of mounting an engine or an electric motor that rotationally drives the wheels 38 on one or a plurality of vehicles 30 and directly or remotely operating this is adopted. You can also

[0026]

As described above, according to the present invention, the hoses can be laid down and carried on a row of trolleys in which a large diameter hose can be curved to change the direction. A large diameter hose can be safely transported in a short time with a small number of workers without the need for a large crane.

[Brief description of drawings]

FIG. 1 shows a hose carrying device according to an embodiment of the present invention, (A) is a plan view of the hose carrying a bent portion of a carrying path, and (B) is a plan view.
Is a partially enlarged plan view, (C) is a front sectional view, and (D) is a schematic view of a pressure cylinder and a switching solenoid valve.

FIG. 2 is a plan view showing a state in which the direction of the hose carrier according to the embodiment of the present invention is changed.

FIG. 3 is a plan view of the hose carrying device according to the embodiment of the present invention while passing through the bent portion of the carrying path.

[Explanation of Codes] 10: Transport Route, 20: Hose, 30: Cart, 3a:
Packing surface, 35: restraining frame, 36: latch, 38: wheel, 39: rudder handle, 51: connecting rod, 52: side arm, 5
3: Bogie connecting shaft, 60: Pressure cylinder, 61: Cylinder, 62: Piston, 63: Piston rod, 70:
Switching solenoid valve, 81: magnetic sensor, 82: magnetic plate for left, 83: magnetic plate for right, 90: towing vehicle.

Claims (4)

[Claims] 1. A plurality of bogies each having a semicircular concave loading platform surface on which hoses are placed, and a plurality of bogies each having a holding frame capable of opening and closing and locking the hoses placed on the loading platform surface. A connecting rod that is connected in series so that the direction can be changed to the left and right, a direction changing means that is provided between the connecting rod and the carriage to change the horizontal direction of the carriage, and a transportation path through which the carriage passes. A hose carrying device comprising a direction indicating means, a detection command means for detecting the direction indicating means and operating the direction changing means, and a towing means for pulling a row of the carriages connected by the connecting rod. 2. The hose carrier according to claim 1, wherein the direction changing means is a fluid pressure drive device having a pressure cylinder and a switching solenoid valve. 3. The hose carrier according to claim 1, wherein the direction indicating means is a magnetic plate, and the detection commanding means is a detection commanding device having a magnetic sensor for detecting the magnetism of the magnetic plate. 4. The direction changing means is a fluid pressure drive device having a pressure cylinder and a switching solenoid valve, the direction indicating means is a magnetic plate, and the detection command means is a magnetic sensor for detecting the magnetism of the magnetic plate. The hose carrying device according to claim 1, which is a detection command device having a.