JP2012020815A - Cable-traction type vehicle conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable-traction type vehicle conveyor that allows a vehicle to be subjected to an X-ray inspection by movable carriages not loaded with drive devices while being conveyed, and reduces manufacturing costs by simplifying the structure of the movable carriage and reducing the weight of the movable carriage.SOLUTION: The cable-traction type vehicle conveyor includes: a traveling rail 12 that is provided in a carriage path 13 which is lower than the traveling surface 11 of a vehicle 1 to be inspected is located outside or inside a front wheel 1a of the vehicle to be inspected, and horizontally extends in a conveying direction; a movable carriage 14 that is located lower than the traveling surface 11 and is movable along the traveling rail; a front-wheel transfer device 16 that is provided on the movable carriage so as to transfer the front wheel of the vehicle to be inspected between the self-propellable position and the transferrable position; and a cable traction device 18 that pulls the movable carriage by a cable 19 so as to move the movable carriage along the traveling rail.

Description

  The present invention relates to a cable pulling type vehicle conveyance device for performing X-ray inspection while conveying a vehicle.

  An X-ray inspection apparatus that performs X-ray inspection of a vehicle that transports a container or the like is disclosed in Non-Patent Document 1, and an apparatus that transports the vehicle is disclosed in Patent Documents 1 and 2.

  The “container cargo large-sized X-ray inspection apparatus” of Non-Patent Document 1 is an apparatus that performs X-ray inspection inside a container while the container is mounted on a truck bed.

  In this X-ray inspection apparatus, a vehicle driver enters an entrance yard of a building, stops a vehicle (container vehicle) on which a container is placed at a predetermined place, and gets off. Next, the first transport device lifts the front wheel portion of the vehicle, and after the entrance shielding door is opened, the first transport device automatically travels in the X-ray inspection tunnel and opens the container vehicle in the X-ray inspection tunnel. Returns to the entry yard. Next, the second transport device lifts the front wheel portion of the vehicle in the X-ray inspection tunnel and automatically travels toward the exit yard. During the travel, the X-ray generator irradiates the X-ray, Line inspection is to be performed.

  In the “X-ray inspection method” of Patent Document 1, a carriage passage is formed below a shielding room that irradiates X-rays, and a front carriage of the vehicle is lifted by a carriage that self-travels in the passage. It is to pass through.

  The “conveying device” of Patent Document 2 is a ground-drawing type conveying cart that does not form a carriage passage below the shielding room that irradiates X-rays and that self-runs by lifting the front wheel of the vehicle from the front of the vehicle.

“Container Cargo Large X-ray Inspection System”, Ishikawajima-Harima Technical Report Vol. 43 No. 3 (2003-5)

JP 2003-287507 A, “X-ray Inspection Method” JP 2007-331852 A, “Conveyor”

  The conventional X-ray inspection vehicle transport device described above has a traveling drive device (motor and speed reducer) mounted on a mobile cart that transports the front wheels of the vehicle, and the structure of the mobile cart is complicated. There is a problem that the weight is heavy and the manufacturing cost is high.

  The present invention has been developed to solve the above-described problems. That is, an object of the present invention is to provide a cable traction capable of performing X-ray inspection while transporting a vehicle by means of a moving carriage not equipped with a driving device, and simplifying and reducing the weight of the structure of the moving carriage. It is in providing a type vehicle conveyance device.

According to the present invention, a vehicle transport device for X-ray inspection of a test vehicle while transporting the test vehicle,
A traveling rail that is lower than the traveling surface of the vehicle to be examined, located outside or inside the front wheel of the vehicle to be examined, and provided in a carriage passage extending horizontally in the conveying direction;
A movable carriage located below the running surface and movable along the running rail;
A front wheel transfer device that is provided on the movable carriage and is capable of transferring the front wheels of the vehicle to be tested between a self-propelled position and a transportable position;
There is provided a cable traction type vehicle conveyance device comprising a cable traction device that pulls a movable carriage with a cable and moves the trolley along the traveling rail.

According to the embodiment of the present invention, a pair of the bogie passages are provided outside the both side surfaces of the test vehicle,
The traveling rail is provided in each carriage passage,
The movable carriage is provided independently along each traveling rail,
The front wheel transfer device is provided in each of the movable carriages, and is horizontally movable between the upper part of the carriage passage and the front and rear positions of the front wheels of the test vehicle, and the front wheels of the test vehicle at the front and rear positions. A pair of front wheel lift devices capable of lifting
The cable pulling device is provided outside the both side surfaces of the vehicle to be tested, and is fixed to the movable carriage, and a pair of cables wound endlessly between the front and rear of the traveling range, It consists of a pair of drive devices that respectively pull and drive the cables, and a synchronization device that synchronizes the drive devices.

  In addition, the cable pulling device is provided in each of the cart passages, and is provided with a pair of cable drive wheels installed in front of the traveling range of the mobile cart and a pair of cables driven in the traveling range. And a plurality of guide pulleys for guiding the cable between the cable driving wheel and the cable driven wheel through the outside from both side surfaces of the vehicle to be tested in the traveling direction.

The traveling rail includes a main rail and a pair of auxiliary rails that are parallel to each other, and the pair of auxiliary rails are vertically opposed to each other outside the main rail,
The movable carriage has a main wheel that is guided along the main rail, and an auxiliary wheel that is positioned between the pair of auxiliary rails and supports upward and downward loads,
The synchronization device includes a laser beam irradiation source provided on one side of the movable carriage, a laser detection element provided on the other side, and a speed control device that controls the pair of driving devices according to an output signal of the laser detection element, respectively. Consists of.

  The synchronizer includes a speed control device that controls the pair of driving devices by a signal of a pressure difference between left and right of the driving cylinder of the front wheel lifting device.

  According to another embodiment of the present invention, the synchronization device is a portal frame that mechanically connects a pair of the movable carts in front of and above the test vehicle.

  According to another embodiment of the present invention, the front wheel lift device includes a pair of horizontal forks that can swing horizontally around a vertical axis, and the horizontal forks opposite the front wheels of the vehicle to be tested. A pair of drive cylinders that swing and drive in a direction, and a lift cylinder that integrally lifts and lowers the horizontal fork and the drive cylinder.

According to another embodiment of the present invention, the front wheel lift device includes: a lift mechanism without a power source provided for each movable carriage; and a lift drive device provided fixed to the carriage passage. Become
The lift mechanism and the lift drive device operate in cooperation with each other at a predetermined position with respect to the test vehicle.

The front wheel transfer device comprises a lifting device, a lifting frame, and a pair of expansion / contraction rods provided on a movable carriage,
The pair of expansion / contraction rods are set before and after the front wheels of the test vehicle, and have rods that extend and contract in the width direction of the test vehicle from both ends thereof.
The elevating device operates a pair of link mechanisms symmetrically to elevate while maintaining the level of the elevating frame.

Further, according to another embodiment of the present invention, the front wheel transfer device comprises a pair of expansion / contraction rods set on the moving carriage before and after the front wheel of the test vehicle,
The expansion / contraction rod has a cylindrical rod that expands and contracts in the width direction of the vehicle under test from both ends thereof.
A plurality of rolling bearings are attached to the tip of the cylindrical rod so as to be freely rotatable and spaced apart in the axial direction.

According to the configuration of the present invention, since the movable carriage is pulled by the cable and moved along the traveling rail by the cable towing device, the X-ray inspection is performed while the vehicle is being transported by the movable carriage without the driving device. It is possible to reduce the manufacturing cost by simplifying and reducing the structure of the moving carriage.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a first embodiment of a cable towed vehicle conveyance device according to the present invention. It is a 1st embodiment figure of a front wheel transfer device (front wheel lift device). It is a 1st embodiment figure of a mobile trolley. It is a 1st embodiment figure of a cable pulling device. It is the bird's-eye view (A) of 1st Embodiment of a cable pulling apparatus, and the bird's-eye view (B) of 2nd Embodiment. It is operation | movement explanatory drawing of the cable pull type | formula vehicle conveying apparatus of this invention. It is a 2nd embodiment figure of a cable pull type vehicle conveyance device by the present invention. It is a 2nd embodiment figure of a front wheel transfer device (front wheel lift device). It is a top view of FIG. It is a 3rd embodiment figure of a cable pull type vehicle conveyance device by the present invention. It is a 4th embodiment figure of a cable pull type vehicle conveyance device by the present invention. It is the elements on larger scale (A) of FIG. 11, and its operation | movement explanatory drawing (B). It is a 3rd embodiment figure of a cable pulling device.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.

The cable pulling type vehicle conveyance device of the present invention is a conveyance device that lifts and conveys a front wheel of a vehicle to be inspected for X-ray inspection by vertical irradiation and horizontal irradiation of X-rays.
In the fourth embodiment shown in FIGS. 11 and 12, which will be described later, the front wheel is not lifted. In this case, “lift amount = zero” is also included when the front wheel is lifted.
Hereinafter, the cable pull type vehicle transport device of the present invention is simply referred to as “transport device”.

  FIG. 1 is a first embodiment of a conveying device according to the present invention, where (A) is a side view and (B) is a front view. In this figure, the conveying device 10 of the present invention includes a traveling rail 12, a moving carriage 14, a front wheel transfer device 16, and a cable pulling device 18.

In FIG. 1A, reference numeral 1 denotes a test vehicle, a broken line is a large vehicle such as a container vehicle, and a solid line is a small vehicle such as a passenger car or a small truck. These test vehicles 1 run on a horizontal running surface 11.
Further, as shown in FIG. 1B, a pair of bogie passages 13 lower than the traveling surface 11 are provided on both sides of the traveling surface 11. The carriage passage 13 is lower than the traveling surface 11 of the vehicle 1 to be tested, is located outside the front wheel 1a of the vehicle 1 to be tested, and has a bottom surface that extends horizontally in the transport direction.
The level difference between the traveling surface 11 and the bottom surface of the carriage passage 13 is set to a height at which the upper portion of the moving carriage 14 does not protrude upward from the traveling surface 11.

  In this example, the traveling surface 11 is formed by raising the traveling portion 11a on an existing horizontal surface. However, the present invention is not limited to this, and conversely, the bogie passage 13 may be additionally processed on the existing traveling surface 11.

  In this example, a pair of traveling rails 12 is provided, and each of the traveling rails 12 is provided in the carriage passage 13 described above and extends horizontally in the conveying direction.

  The movable carriage 14 is provided independently along each traveling rail 12, is located below the traveling surface 11 of the test vehicle 1, and is configured to be independently movable along the traveling rail 12.

  The front wheel transfer device 16 is a pair of front wheel lift devices 16 in this example. Each front wheel lift device 16 is provided in each movable carriage 14, is horizontally movable between the upper part of the carriage passage 13 and the front and rear positions of the front wheel 1a of the vehicle 1 to be tested, and at the front and rear positions of the front wheel 1a. The front wheel 1a of the test vehicle 1 is configured to be lifted.

FIG. 2 is a first embodiment diagram of the front wheel transfer device 16 (front wheel lift device), and is a partial plan view of FIG. 1.
As shown in this figure, each front wheel lift device 16 is driven to swing in a direction opposite to the pair of horizontal forks 16b swinging about a vertical shaft 16a and the front wheel 1a of the vehicle 1 to be tested. And a pair of drive cylinders 16c. The drive cylinder 16c is preferably a hydraulic cylinder, and its operation is controlled by a hydraulic unit (not shown) provided in each movable carriage 14.

The pair of horizontal forks 16b are provided at the front and rear with respect to the traveling direction, and swing by the drive cylinder 16c about the vertical shaft 16a in the opposite direction with respect to the front wheel 1a. It is possible to move horizontally between a “retraction position” located at the upper portion of the bogie passage 13 and a “support position” located at the front position or the rear position of the front wheel 1 a of the vehicle 1 to be tested.
Further, in the “support position”, the relative position (clamping width) of the pair of horizontal forks 16b is changed according to the turning positions of the horizontal forks 16b according to the tire positions of the large vehicle and the small vehicle as shown in the figure. The front wheels 1a of the small vehicle and the large vehicle can be supported by a pair of horizontal forks 16b.

  Further, the front wheel lift device 16 includes a lift cylinder 17 shown in FIG. 1A, and the horizontal fork 16b and the drive cylinder 16c are integrally raised and lowered.

With the configuration of the front wheel lift device 16 described above, the transport device 10 is moved back and forth along the rail 12 without interfering with the vehicle 1 to be tested by retracting the horizontal fork 16b to the retracted position above the carriage passage 13. can do.
Further, the vehicle is stopped at a predetermined position with respect to the vehicle 1 to be tested, and the horizontal fork 16b is turned to be positioned at a support position (front and rear of the front wheel 1a of the vehicle 1 to be tested). By raising 16c, the front wheel 1a of the vehicle 1 can be lifted.

FIG. 3 is a first embodiment of the mobile carriage 14 and is a partially enlarged view of FIG.
In this example, each traveling rail 12 includes a main rail 12a and a pair of auxiliary rails 12b and 12c which are parallel to each other. The auxiliary rail 12b is located at the outer lower portion of the main rail 12a, and the auxiliary rail 12c is located opposite to the upper portion of the auxiliary rail 12b. In addition, a U-shaped reaction force wall 13a is provided outside the carriage passage 13 to support the auxiliary rail 12b.
In FIG. 3, the movable carriage 14 has a main wheel 15a and an auxiliary wheel 15b. The main wheel 15a and the auxiliary wheel 15b are coaxial in this example, but may be on different axes. Moreover, it is preferable to provide a plurality of main wheels 15a and auxiliary wheels 15b according to the load to be supported.

The main wheel 15a and the auxiliary wheel 15b guide the movable carriage 14 along the main rail 12a and the auxiliary rail 12b while supporting a downward load during normal traveling when the front wheel 1a of the test vehicle 1 is not supported.
On the other hand, when the front wheel 1a of the test vehicle 1 is supported by the horizontal fork 16b, a counterclockwise moment M acts on the movable carriage 14 in the drawing. This moment M is supported by the supporting force of the auxiliary wheel 15b by the auxiliary rail 12c. Therefore, when traveling with the front wheel 1a of the test vehicle 1 lifted, the main wheel 15a supports the downward load and moves along the main rail 12a and the auxiliary rail 12c with the main wheel 15a and the auxiliary wheel 15b. A cart 14 is guided.

  In other words, the moving carriage 14 of the first embodiment shown in FIG. 3 is provided with a reaction force wall 13a on the base side of the moment M due to the vehicle weight generated in the left and right moving carriages 14 so that the auxiliary wheel 15b receives the reaction force. It is composed. The reaction force is generated upward with respect to the auxiliary rail 12c, but when there is no load, the auxiliary rail 12b is also provided on the lower surface for stable traveling of the movable carriage 14.

  FIG. 4 is a first embodiment diagram of the cable pulling device 18, and FIG. 5 is a bird's-eye view (A) of the first embodiment of the cable pulling device 18 and a bird's-eye view (B) of the second embodiment.

  In this example, the cable pulling device 18 includes a pair of cables 19, a pair of driving devices 20, and a synchronization device 21.

4 and 5, the pair of cables 19 are respectively provided outside both side surfaces of the test vehicle 1 (not shown), are fixed to the carriage main body 14 a of the moving carriage 14, and the travel range of the moving carriage 14 is It is wound endlessly between the front and back of the.
The cable pulling device 18 includes a pair of cable drive wheels 18a, a pair of cable driven wheels 18b, and a plurality of guide pulleys 18c, which are provided in each carriage passage 13, respectively.
The cable pulling device 18 is provided with a tensioner (not shown) that adjusts the tension of the cable to an appropriate value.
The pair of cable drive wheels 18 a is installed in front of the traveling range of the mobile carriage 14.
The pair of cable driven wheels 18 b is installed in the rear of the traveling range of the mobile carriage 14.
The plurality of guide pulleys 18c guide the cable 19 between the cable driving wheel 18a and the cable driven wheel 18b in the traveling direction through the outside from the both side surfaces of the test vehicle 1.

  In this example, the pair of drive devices 20 are motors that rotationally drive the cable drive wheels 18a, and each cable 19 is pulled and driven by the rotational drive of the cable drive wheels 18a.

In FIG. 4, the synchronization device 21 is driven in a pair by a laser beam irradiation source 21 a provided on one side of the carriage main body 14 a of the moving carriage 14, a laser detection element 21 b provided on the other side, and an output signal of the laser detection element 21 b. It consists of a speed control device 22 for controlling each of the devices 20, and synchronizes each drive device 20.
As another method of synchronizing, the speed control device 22 can detect the pressure difference between the left and right of the drive cylinder 16c of each front wheel lift device 16 and synchronize the speeds of the pair of drive devices 20.
Further, as another method of synchronizing the speeds of the pair of drive devices 20, the two drive shafts or the driven shafts can be connected (not shown) at a position where they do not interfere with the traveling of the vehicle under test.

  5A and 5B, reference numeral 23a denotes an entrance-side shielding door and 23b denotes an exit-side shielding door. An X-ray generator (not shown) is provided between the entrance-side shielding door 23a and the exit-side shielding door 23b. X) is irradiated with X-rays, and the vehicle 1 is inspected for X-rays.

  In FIG. 5A, the cable 19 needs to transport the vehicle 1 to be tested (truck, etc.) to the outside beyond the entrance-side shielding door 23a and the exit-side shielding door 23b, and the cable driving wheel 18a and the cable driven wheel. The position of 18b needs to be installed outside the respective shielding doors 23a and 23b. At this time, since the cable 19 interferes with the shielding doors 23a and 23b, the vertical installation position of the cable 19 is further lower than the lower end positions of the shielding doors 23a and 23b as shown in FIG. Need to pass through. This makes it possible to prevent interference between the cable 19 and the shielding doors 23a and 23b and to prevent X-ray leakage from the passage of the cable 19.

  As shown in FIG. 5 (B), the cable 19 may pass through the upper and lower sides of the shielding doors 23a and 23b. Thereby, the space above the shielding doors 23a and 23b can be used effectively, and the space below the shielding doors 23a and 23b can be reduced.

  With the configuration described above, the speeds of the pair of drive devices 20 are driven in synchronism with each other, so that two independent mobile carriages 14 can be pulled along the traveling rail 12 by being pulled by the cable 19. .

FIG. 6 is an operation explanatory view of the above-described transport apparatus 10 of the present invention.
In this figure, 2 is a horizontal X-ray generator, 3 is a collimator, 4 is a horizontal X-ray detector, 5 is a vertical X-ray generator, 6 is a collimator, and 7 is a vertical X-ray detector.

In the present invention, in order to avoid the disadvantages of the conventional transfer device, the traveling surface 11 of the test vehicle 1 is disposed above the moving carriage 14 of the transfer device 10, and the front wheel lift device 16 is disposed on both side surfaces of the test vehicle 1. It is arranged outside.
Therefore, with this configuration, the movable carriage 14 and the front wheel lift device 16 are not hidden behind the vehicle 1 to be tested in the horizontal inspection. Further, since the front wheel lift device 16 is on the ground with respect to the vertical direction and is located outside both side surfaces of the vehicle 1 to be examined, there is no structure that blocks vertical X-rays. The cable 19 is fixed to the carriage main body 14a of the mobile carriage 14 at a position that does not block horizontal and vertical X-rays.
Thereby, in the vertical irradiation and the horizontal irradiation of X-rays, only the horizontal fork 16b of the front wheel lift device 16 is shaded, and almost 100% of the vehicle 1 to be inspected can be inspected.

  According to the transfer device 10 of the present invention described above, it is not necessary to mount a driving device for traveling on the moving carriage 14, and thus the structure of the moving carriage 14 is simplified, the weight is reduced, and the manufacturing cost is reduced. Reduction can be achieved.

FIGS. 7A and 7B are views of a second embodiment of the transport device according to the present invention, where FIG. 7A is a side view and FIG. 7B is a front view.
As shown in FIG. 7B, in this example, the synchronization device 21 described above is not provided, and instead, a portal frame that mechanically connects a pair of movable carriages 14 in front of and above the test vehicle 1. 24 is provided.
Other configurations are the same as those of the first embodiment.

When the front wheel 1a of the test vehicle 1 (truck or the like) is lifted by the front wheel lift device 16, a bending moment M acts on the left and right movable carriages 14 due to its weight. The portal frame 24 is configured to receive a tipping moment M (see FIG. 5) that acts on a pair of movable carriages 14 that are divided into left and right.
In addition, the left and right movable carriages 14 are integrated with the portal frame 24, so that the left and right movements can be easily synchronized.
Accordingly, the pair of movable carriages 14 can be moved along the traveling rail 12 in synchronization with the portal frame 24.
In the case of the configuration of FIG. 7, the auxiliary rails 12b and 12c and the auxiliary wheels 15b of the mobile carriage 14 shown in FIG. 5 can be omitted.

If the movable carriage 14 of FIG. 7 having the portal frame 24 is used, the cable 19 can be installed outside the X-ray irradiation range, and the cable 19 can be prevented from becoming an obstacle to inspection.
That is, even with the configuration of FIG. 7 (second embodiment), as shown in FIG. 6, the movable carriage 14 and the front wheel lift device 16 are not hidden behind the vehicle 1 to be tested in the horizontal inspection. Further, since the front wheel lift device 16 is on the ground with respect to the vertical direction and is located outside both side surfaces of the vehicle 1 to be examined, there is no structure that blocks vertical X-rays. Thereby, in the vertical irradiation and the horizontal irradiation of X-rays, only the horizontal fork 16b of the front wheel lift device 16 is shaded, and almost 100% of the vehicle 1 to be inspected can be inspected.

FIG. 8 is a diagram of a second embodiment of a front wheel transfer device (front wheel lift device), and FIG. 9 is a plan view of FIG.
The front wheel transfer device 16 is a pair of front wheel lift devices 26 in this example. Each front wheel lift device 26 includes a lift mechanism 28 that is provided in each movable carriage 14 and has no power source, and a lift drive device 30 that is fixedly provided in the carriage passage 13.
The lift mechanism 28 and the lift driving device 30 operate in cooperation with each other at a predetermined position with respect to the vehicle 1 to be tested, and similarly to the front wheel lift device 16 described above, the upper portion of the carriage passage 13 and the front wheel of the vehicle 1 to be tested are operated. The front wheel 1a can be moved horizontally between the front and rear positions of 1a, and the front wheel 1a of the test vehicle 1 can be lifted at the front and rear positions of the front wheel 1a.

In FIG. 8, the lift mechanism 28 includes a vertical shaft 27, a horizontal fork 28a, a height lock device 29a, and a rotation lock device 29b attached to each movable carriage 14.
The horizontal fork 28 a is a horizontal support plate, and one end (left end in the figure) is fixed to the vertical shaft 27.
The vertical shaft 27 is supported by a bearing provided on the movable carriage 14 so as to be rotatable and vertically movable in the axial direction. Further, the vertical shaft 27 has a rotation engaging portion 27a having a rectangular cross section at an upper end thereof, and a circumferential groove 27b and a vertical groove 27c at an intermediate portion thereof.
The height lock device 29a includes a claw that fits into the circumferential groove 27b, a compression spring that urges the claw toward the circumferential groove 27b, and a pneumatic cylinder that pulls the claw away from the circumferential groove 27b.
The rotation lock device 29b includes a claw that fits into the vertical groove 27c, a compression spring that urges the claw toward the vertical groove 27c, and a pneumatic cylinder that pulls the claw away from the vertical groove 27c.

In FIG. 8, each movable carriage 14 has a main wheel 15a and an auxiliary wheel 15b at the lower part thereof. The main wheel 15a and the auxiliary wheel 15b are guided by the main rail 12a and the auxiliary rails 12b and 12c.
This configuration and operation are the same as in FIG. 3 described above.

  In FIG. 8, the lift driving device 30 includes servo motors 31a, 31b, 31c, a pneumatic cylinder 32, a solenoid valve 33, a quick coupler 34, guides 35a, 35b, a slide 35c, feed screws 36a, 36b, elevating plates 37, 38. , Comprising a shaft turning cup 39.

  The front wheel lift device 26 of FIGS. 8 and 9 operates as follows.

(When the front wheel 1a of the vehicle 1 to be tested is lowered to the running surface 11)
First, it is assumed that the test vehicle 1 is transported by the movable carriage 14 with the horizontal fork 28a supporting the front wheel 1a of the test vehicle 1.
When the movable carriage 14 stops at a predetermined vehicle release position, the lift plates 37 and 38 and the quick coupler 34 are moved toward the movable carriage 14 from the outside of the movable carriage 14 by the servo motor 31c and the feed screw 36b. Is coupled to the mobile carriage 14.
In this state, the elevating plate 38 is raised by the servo motor 31b and the feed screw 36a to support the horizontal fork 28a, and compressed air is supplied to the height lock device 29a and the rotation lock device 29b via the solenoid valve 33 and the quick coupler 34. Then, each claw is pulled away from the circumferential groove 27b and the vertical groove 27c to release the lock, and the vertical shaft 27 can freely rotate and move up and down.
In this state, the elevating plate 38 is lowered, the horizontal fork 28a is lowered, and the front wheel 1a of the test vehicle 1 is lowered onto the traveling surface 11. Next, the lifting plate 37 is lowered by the pneumatic cylinder 32, the shaft turning cup 39 is engaged with the rotation engaging portion 27a of the vertical shaft 27, the vertical shaft 27 is rotated by the servo motor 31a, and the horizontal fork 28a is shaken. As shown by a broken line in FIG.
In this state, when the quick coupler 34 is retracted from the movable carriage 14, the compressed air is not supplied to the height lock device 29a and the rotation lock device 29b, and the shaft is fixed by the height lock device 29a and the rotation lock device 29b. The

(When lifting the front wheel 1a of the test vehicle 1 from the running surface 11)
When the movable carriage 14 stops at a predetermined vehicle release position, the lift plates 37 and 38 and the quick coupler 34 are moved toward the movable carriage 14 from the outside of the movable carriage 14 by the servo motor 31c and the feed screw 36b. Is coupled to the mobile carriage 14.
In this state, the lifting plate 37 is lowered by the pneumatic cylinder 32, the shaft turning cup 39 is engaged with the rotation engaging portion 27a of the vertical shaft 27, the vertical shaft 27 is rotated by the servo motor 31a, and the horizontal fork 28a. As shown by a solid line in FIG. 9, the pair of horizontal forks 28a are turned around the front wheel 1a of the vehicle 1 being stopped.
Next, the elevating plate 38 is raised, the horizontal fork 28a is raised, and the front wheel 1a of the test vehicle 1 is lifted from the running surface 11.
In this state, when the quick coupler 34 is retracted from the movable carriage 14, the compressed air is not supplied to the height lock device 29a and the rotation lock device 29b, and the shaft is fixed by the height lock device 29a and the rotation lock device 29b. The

  8 and 9 can reduce the height of the building, and at the same time, the moving carriage 14 is not equipped with any driving device, and the structure of the moving carriage 14 and the lift mechanism 28 is further increased. It can be simplified, the weight is reduced, and the manufacturing cost can be reduced.

  FIGS. 10A and 10B are views of a third embodiment of the cable-traction vehicle transportation device according to the present invention, in which FIG. 10A is a side view and FIG. In this figure, the conveying device 10 of the present invention includes a traveling rail 12, a moving carriage 14, a front wheel transfer device 16, and a cable pulling device 18.

In FIG. 10 (B), the test vehicle 1 is allowed to self-run on a horizontal running surface 11.
Further, as shown in FIG. 10B, a cart passage 13 lower than the traveling surface 11 is provided in the center of the traveling surface 11. The carriage passage 13 is lower than the running surface 11 of the vehicle 1 to be tested, is located on the inner side of the front wheel 1a of the vehicle 1 to be tested, and has a bottom surface that extends horizontally in the transport direction.
The level difference between the traveling surface 11 and the bottom surface of the carriage passage 13 is set to a height at which the upper portion of the moving carriage 14 does not protrude upward from the traveling surface 11.

  In this example, the traveling rails 12 are provided in a pair on the left and right sides, are provided in the above-described carriage passage 13 and extend horizontally in the conveying direction.

The movable carriage 14 is positioned below the running surface 11 of the vehicle 1 to be tested, and is configured to be movable along a pair of running rails 12.
In this example, the movable carriage 14 is a horizontal member provided with a plurality of main wheels 15a. A current collector 40 is attached to the lower part of the movable carriage 14 so that power can be received from the outside while the movable carriage 14 is traveling.
Further, a cable 19 is attached to the lower part of the movable carriage 14, and the movable carriage 14 is pulled by the cable 19 and moved along the traveling rail 12 by a cable pulling device (not shown).

  The configuration of the cable pulling device is different in that there is no synchronization device and there is one cable 19, but the other configurations are the same as those in FIGS. 4 and 5.

In this example, the front wheel transfer device 16 includes a lifting device 41, a lifting frame 42, and a pair of expansion / contraction rods 43.
The lifting device 41 includes a pair of link mechanisms 41a, a feed screw 41b, and a drive motor 41c. The drive motor 41c rotates the feed screw 41b to operate the pair of link mechanisms 41a symmetrically to lift and lower the frame. 42 is moved up and down while maintaining the level of 42.
The elevating frame 42 is a horizontal member, and a pair of expansion / contraction rods 43 are held on the elevating frame 42 so as to be horizontally movable in the transport direction by a horizontal movement device 43b (motor drive).
In this example, the pair of expansion / contraction rods 43 are motor cylinders, and the rods 43a extend and contract in the width direction of the vehicle 1 from both ends thereof. The positions of the pair of expansion / contraction rods 43 are set before and after the front wheel 1a of the vehicle 1 to be tested.

With the configuration of the front wheel transfer device 16 described above, the rod 43a of the pair of expansion / contraction rods 43 is contracted and the lifting frame 42 is lowered, so that the movable carriage 14 can be moved to the traveling rail 12 without interfering with the vehicle 1 to be tested. Can move back and forth along.
Further, the vehicle 1 is stopped at a predetermined position with respect to the vehicle 1 to be tested, the lift frame 42 is lifted, the rods 43a of the pair of expansion / contraction rods 43 are extended, and the lift frame 42 is further lifted, thereby The front wheel 1a can be lifted.

In this configuration, only one set of the cable pulling device is required at the central position, and the installation space can be reduced, and at the same time, the manufacturing cost can be reduced.
In addition, in the vertical irradiation of X-rays, the moving carriage 14 is shaded, but since the moving carriage 14 is compact, the influence range is small.

  FIG. 11 is a diagram showing a fourth embodiment of the cable-traction vehicle transportation device according to the present invention, in which (A) is a side view and (B) is a front view. In this figure, the transport device 10 of the present invention includes a moving carriage 14, a front wheel transfer device 16, and a cable pulling device 18.

In FIG. 11A, the vehicle 1 to be tested is allowed to self-run on a horizontal running surface 11.
Further, as shown in FIG. 11B, a cart passage 13 lower than the traveling surface 11 is provided in the center of the traveling surface 11. The carriage passage 13 is lower than the running surface 11 of the vehicle 1 to be tested, is located on the inner side of the front wheel 1a of the vehicle 1 to be tested, and has a bottom surface that extends horizontally in the transport direction.
In this example, the level difference between the traveling surface 11 and the bottom surface of the carriage passage 13 is set to a height at which the cable 19 attached to the lower part of the movable carriage 14 and the current collector 40 can be accommodated.

In this example, the movable carriage 14 is a horizontal member provided with a plurality of main wheels 15a. A current collector 40 is attached to the lower part of the movable carriage 14 so that power can be received from the outside while the movable carriage 14 is traveling.
Further, a cable 19 is attached to the lower part of the movable carriage 14, and the movable carriage 14 is pulled and moved by the cable 19 by a cable pulling device (not shown).
In addition, although the traveling rail 12 mentioned above in this figure is omitted, it is preferable to provide it.

  The configuration of the cable pulling device is the same as the configuration of FIG. 10 in that there is no synchronization device and there is one cable 19.

In this example, the front wheel transfer device 16 includes a pair of expansion / contraction rods 44.
The pair of expansion / contraction rods 44 is held on the movable carriage 14 so as to be horizontally movable in the transport direction by the horizontal movement device 44b, and the front / rear positions of the pair of expansion / contraction rods 44 are in front of and behind the front wheels 1a of the vehicle 1 under test. Is set.
In this example, the pair of expansion / contraction rods 44 are motor cylinders, and columnar rods 44 a extend and contract in the width direction of the vehicle 1 from both ends thereof.

FIG. 12 is a partially enlarged view (A) of FIG. 11 and its operation explanatory view (B).
As shown in FIG. 12A, a plurality of rolling bearings 45 are attached to the tip of the cylindrical rod 44a at intervals in the axial direction so as to freely rotate.

With the configuration of the front wheel transfer device 16 described above, the movable carriage 14 is moved back and forth along the traveling rail 12 without interfering with the test vehicle 1 by contracting the columnar rods 44a of the pair of expansion / contraction rods 44. be able to.
Moreover, the front wheel 1a of the test vehicle 1 can be directly pushed by the rolling bearing 45 by stopping at a predetermined position with respect to the test vehicle 1 and extending the columnar rod 44a of the pair of expansion / contraction rods 44. In this case, the front wheel 1a rotates freely.

With the configuration described above, the building height can be reduced. In addition, only one set of cable pulling devices is required at the center position, and no lift device is required both inside and outside the mobile carriage 14, so that installation space can be reduced and manufacturing costs can be greatly reduced. Can do.
In addition, in the vertical irradiation of X-rays, the moving carriage 14 is shaded, but since the moving carriage 14 is compact, the influence range is small.

  FIGS. 13A and 13B are views of a third embodiment of the cable pulling device 18, wherein FIG. 13A is a front view and FIG. 13B is a plan view.

  In this example, the cable pulling device 18 includes one cable 19 and one drive device 20.

In FIG. 13, the cable 19 is fixed to the movable carriage 14 and is wound endlessly between the front and rear of the traveling range of the movable carriage 14.
The cable pulling device 18 includes a single cable driving wheel 18a and a single cable driven wheel 18b.
The single cable drive wheel 18 a is horizontally installed in front of the traveling range of the mobile carriage 14.
The single cable driven wheel 18b is horizontally installed backward in the traveling range of the mobile carriage 14.

In this example, the single driving device 20 is a motor that rotationally drives the cable driving wheel 18a, and pulls and drives the cable 19 by the rotational driving of the cable driving wheel 18a.
Other configurations are the same as those in FIGS.

The transport apparatus 10 of the present invention described above operates as follows.
The X-ray inspection apparatus is composed of an entrance yard, an X-ray inspection tunnel, and a exit yard that are sequentially arranged on a straight line. In the X-ray inspection tunnel, vertical X-ray irradiation and horizontal irradiation are performed as shown in FIG. It is like that.
In this X-ray inspection apparatus, a vehicle driver enters an entrance yard of a building, stops the vehicle 1 to be tested at a predetermined location, and gets off. Next, the transport device 10 of the present invention lifts the front wheel 1a of the vehicle 1 to be inspected, and after the entrance shielding door is opened, automatically travels through the X-ray inspection tunnel, enters the X-ray inspection tunnel, and heads toward the exit yard. During the traveling, the X-ray generator emits X-rays, and the subject vehicle 1 is inspected by X-rays.

  According to the above-described configuration of the present invention, the movable carriage is pulled by the cable and moved along the traveling rail by the cable towing device, so that the X-ray inspection is carried out while the vehicle is being conveyed by the moving carriage not equipped with the driving device. It is possible to reduce the manufacturing cost by simplifying and reducing the weight of the moving carriage.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change variously in the range which does not deviate from the summary of this invention.

1 Test vehicle (small vehicle, large vehicle), 1a front wheel,
2 horizontal X-ray generator, 3 collimator, 4 horizontal X-ray detector,
5 Vertical X-ray generator, 6 Collimator, 7 Vertical X-ray detector,
10 Cable-traction vehicle transport device (transport device),
11 traveling surface, 11a traveling section,
12 traveling rail, 12a main rail, 12b, 12c auxiliary rail,
13 bogie passage, 13a reaction wall, 14 moving bogie, 14a bogie body,
15a main wheel, 15b auxiliary wheel, 16 front wheel transfer device (front wheel lift device),
16a vertical shaft, 16b horizontal fork, 16c drive cylinder,
17 lift cylinder, 18 cable traction device,
18a cable drive wheel, 18b cable driven wheel, 18c guide pulley,
19 cables, 20 drive units, 21 synchronizers,
21a Laser light irradiation source, 21b Laser detection element,
22 speed control device, 23a entry side shielding door, 23b exit side shielding door,
24 portal frame, 26 front wheel lift device, 27 vertical axis,
27a Rotating engagement part, 27b Circumferential groove, 27c Vertical groove,
28 Lift mechanism, 28a Horizontal fork,
29a Height lock device, 29b Rotation lock device,
30 Lift drive device, 31a, 31b, 31c Servo motor,
32 Pneumatic cylinder, 33 Solenoid valve, 34 Quick coupler,
35a, 35b guide, 35c slide,
36a, 36b Lead screw, 37, 38 Lift plate,
39 shaft turning cup, 40 current collector,
41 Lifting device, 42 Lifting frame, 43 Expansion / contraction rod,
43a rod, 43b horizontal movement device, 44 expansion / contraction rod,
44a Cylindrical rod, 44b Horizontal movement device, 45 Rolling bearing

Claims (10)

A vehicle transport device for X-ray inspection of a test vehicle while transporting the test vehicle,
A traveling rail that is lower than the traveling surface of the vehicle to be examined, located outside or inside the front wheel of the vehicle to be examined, and provided in a carriage passage extending horizontally in the conveying direction;
A movable carriage located below the running surface and movable along the running rail;
A front wheel transfer device that is provided on the movable carriage and is capable of transferring the front wheels of the vehicle to be tested between a self-propelled position and a transportable position;
A cable traction type vehicle conveyance device comprising: a cable traction device that pulls a movable carriage by a cable and moves the trolley along the traveling rail. A pair of the passages for the bogies are provided outside the both side surfaces of the test vehicle,
The traveling rail is provided in each carriage passage,
The movable carriage is provided independently along each traveling rail,
The front wheel transfer device is provided in each of the movable carriages, and is horizontally movable between the upper part of the carriage passage and the front and rear positions of the front wheels of the test vehicle, and the front wheels of the test vehicle at the front and rear positions. A pair of front wheel lift devices capable of lifting
The cable pulling device is provided outside the both side surfaces of the vehicle to be tested, and is fixed to the movable carriage, and a pair of cables wound endlessly between the front and rear of the traveling range, 2. The cable towed vehicle conveyance device according to claim 1, comprising a pair of drive devices for pulling and driving the cables, and a synchronization device for synchronizing the drive devices.   The cable pulling device is provided in each of the carriage passages, and is installed in front of the traveling range of the mobile carriage, and a pair of cable driving wheels installed rearward in the traveling range. 3. The driven wheel and a plurality of guide pulleys for guiding the cable in the traveling direction between the cable driving wheel and the cable driven wheel through the outside from both side surfaces of the test vehicle. Cable towed vehicle transport device. The traveling rail is composed of a main rail and a pair of auxiliary rails that are parallel to each other, and the pair of auxiliary rails are vertically opposed to each other outside the main rail,
The movable carriage has a main wheel that is guided along the main rail, and an auxiliary wheel that is positioned between the pair of auxiliary rails and supports upward and downward loads,
The synchronization device includes a laser beam irradiation source provided on one side of the movable carriage, a laser detection element provided on the other side, and a speed control device that controls the pair of driving devices according to an output signal of the laser detection element, respectively. The cable pulling type vehicle conveyance device according to claim 2, wherein   3. The cable-traction vehicle according to claim 2, wherein the synchronization device includes a speed control device that controls each of the pair of drive devices based on a signal of a pressure difference between left and right of a drive cylinder of a front wheel lift device. Conveying device.   The cable pulling type vehicle conveyance device according to claim 2, wherein the synchronization device is a portal frame that mechanically connects the pair of moving carriages in front of and above the test vehicle.   The front wheel lift device includes a pair of horizontal forks that can swing horizontally about a vertical axis, and a pair of drive cylinders that drive the horizontal forks to swing in opposite directions with respect to the front wheels of the vehicle under test. The cable pulling type vehicle conveyance device according to claim 2, further comprising a lift cylinder that integrally raises and lowers the horizontal fork and the drive cylinder. The front wheel lift device is composed of a lift mechanism without a power source provided for each movable carriage, and a lift driving device fixed to the carriage passage,
The cable pulling type vehicle conveyance device according to claim 2, wherein the lift mechanism and the lift drive device operate in cooperation with each other at a predetermined position with respect to the vehicle to be examined. The front wheel transfer device comprises a lifting device, a lifting frame, and a pair of expansion / contraction rods provided on a movable carriage,
The pair of expansion / contraction rods are set before and after the front wheels of the test vehicle, and have rods that extend and contract in the width direction of the test vehicle from both ends thereof.
The cable pulling type vehicle transport device according to claim 2, wherein the lifting device is configured to lift and lower while maintaining the level of the lifting frame by operating a pair of link mechanisms symmetrically. The front wheel transfer device comprises a pair of expansion / contraction rods set on the moving carriage on the front and rear of the front wheel of the test vehicle,
The expansion / contraction rod has a cylindrical rod that expands and contracts in the width direction of the vehicle under test from both ends thereof.
The cable pulling type vehicle conveyance device according to claim 1, further comprising a plurality of rolling bearings attached to a tip end portion of the cylindrical rod at an interval in the axial direction so as to be freely rotatable.