JP2013003030A - Ground-type conveyance apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ground-type conveyance apparatus whose total weight can be reduced and in which frame deformation is reduced even when a vehicle to be inspected is conveyed while lifting up its front wheels, the need of a guide for regulating frame deformation is eliminated, there is no component possible to be damaged by a heavy load and the need of maintenance is reduced.SOLUTION: A ground-type conveyance apparatus comprises: left and right travel rails 12 being positioned outside of a vehicle 1 to be inspected along with a conveyance passage 2 of the vehicle 1 to be inspected and extending horizontally in a conveyance direction 3; left and right mobile trucks 20 which hold the same attitude and are movable on the travel rails synchronously with each other; left and right front wheel elevation devices 30 which are provided in the mobile trucks, are capable of elevating front wheels of the vehicle 1 to be inspected, and can be retreated to a retreat position to prevent interference with the vehicle 1 to be inspected; and a connection device 40 movable between a connection position where the mobile trucks are connected and the retreat position to prevent the interference with the vehicle 1 to be inspected. When elevating front wheels 1a of the vehicle 1 to be inspected by the left and right front wheel elevation devices 30, the connection device supports a falling moment that acts on the mobile trucks by connecting the left and right mobile trucks 20.

Description

  The present invention relates to a ground-type transport apparatus that lifts and transports a front wheel of a vehicle on which a container is mounted for X-ray inspection.

  In general, when X-ray inspection is performed on a vehicle on which a container is mounted, a transport device for transporting the vehicle is used. Such a transport device is configured to be capable of self-propelled while lifting a front wheel or a rear wheel of a vehicle, and allows the vehicle and the container to pass through a shielded room irradiated with X-rays to perform an X-ray inspection of the vehicle and the container. For example, it is disclosed in Patent Documents 1 and 2.

  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. Hereinafter, this type of transfer device is referred to as an “underground transfer device”.

  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. Hereinafter, this type of transfer device is referred to as a “ground type transfer device”.

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

  The underground transport device of Patent Document 1 needs to form a carriage passage in the basement of a shielding room that irradiates X-rays, and the carriage carriage needs to be disposed in the carriage passage. There was a problem of cost.

  On the other hand, the ground type transport device of Patent Document 2 does not require an underground carriage passage, and therefore has a feature that can be made lower in cost than the underground type transport device. However, the above-mentioned ground type conveying apparatus of Patent Document 2 has the following problems.

The ground-type transfer device of Patent Document 2 requires a portal frame that fixedly connects the left and right carriage frames. This portal frame is composed of two column members that are fixed to the left and right bogie frames with their lower ends fixed upward and a horizontal member that horizontally connects the upper ends of the two column members.
(1) However, the height of the horizontal member becomes very high because the portal frame does not interfere with the test vehicle because the vehicle mounted with the container (hereinafter referred to as “test vehicle”) has a high overall height (for example, About 5 m). This increases the weight of the portal frame and increases the total weight of the device.

(2) Since the height of the horizontal member of the portal frame is high, when the front wheel of the inspection vehicle is lifted to pull the test vehicle, the moment acting on the column member is large and the weight is large, The deformation of the columnar member of the portal frame is large.
(3) Due to the deformation of the pillar member, the left and right bogie frames move in the width direction, and stable running becomes difficult. Therefore, a guide (for example, a cam follower) that restricts movement in the width direction is required. In addition, this guide has a short life due to heavy load and needs to be frequently replaced.

  The present invention has been developed to solve the above-described problems. That is, the object of the present invention is to reduce the total weight, and even if the front wheel of the test vehicle is lifted and pulled, there is little deformation of the frame, no guide for regulating the deformation of the frame is required, and it can be damaged by heavy loads. An object of the present invention is to provide a ground-type transfer device that has no structural components and has a low need for complicated maintenance.

According to the present invention, there is a ground-type transport device for X-ray inspection of a test vehicle while transporting the test vehicle,
Left and right traveling rails that are located outside the test vehicle along the transport path of the test vehicle and extend horizontally in the transport direction;
Left and right mobile trolleys that hold the same posture and can move on each running rail in synchronization with each other;
Left and right front wheel lifting devices provided on each movable carriage, capable of raising and lowering the front wheels of the test vehicle, and retractable to a retreat position that does not interfere with the test vehicle;
A connecting device that is movable between a connecting position that connects each movable carriage and a retracted position that does not interfere with the vehicle under test;
The connection device provides a ground-type transfer device that supports the falling moment acting on each movable carriage by connecting the left and right movable carriages when the front wheels are raised and lowered by the front wheel elevator.

According to the configuration of the present invention described above, the front wheel lifting device and the connecting device can be moved to the retracted position where they do not interfere with the test vehicle. In this state, the left and right movable carriages can be placed on each traveling rail without interfering with the test vehicle. You can move freely.
Further, the front wheels of the test vehicle can be raised and lowered by the front wheel lifting device, and the connecting device supports the overturning moment acting on each moving vehicle by connecting the left and right moving carts when the front wheels are raised and lowered by the front wheel lifting device. be able to.

Since the connecting device connects the left and right movable carriages only when the front wheels are raised and lowered by the front wheel lifting device, it does not need to have a height (for example, about 5 m) that does not interfere with the vehicle to be tested unlike the conventional portal frame. . Accordingly, since the left and right movable carriages can be connected at a low position, the connecting device can be reduced in size and weight and the total weight can be reduced.
Further, since the coupling device supports only the overturning moment acting on each movable carriage, there is little deformation of the frame even if the front wheel of the test vehicle is lifted and pulled. Therefore, a guide for restricting the deformation of the frame becomes unnecessary, there is no component member that can be damaged by a heavy load, and the necessity for maintenance can be reduced.

It is a top view of the ground-type conveyance apparatus in 1st Embodiment of this invention. It is the side view which looked at FIG. 1 from the left side. It is the front view which looked at FIG. 1 from the upper side. It is another block diagram of an attitude | position holding apparatus. It is another block diagram of an engaging part. It is the top view (A) and partial side view (B) of the ground type conveying apparatus in 2nd Embodiment of this invention. It is a top view of the ground-type conveyance apparatus in 3rd Embodiment of this invention. It is the top view (A) and side view (B) of a ground-type conveyance apparatus in 4th Embodiment of this invention. It is the top view (A) and BB arrow line view (B) of the ground type conveying apparatus in 5th Embodiment of this invention. It is a schematic diagram which shows the other structure of a coupling device. It is a top view of the ground-type conveyance apparatus in 6th Embodiment of this invention. It is the side view which looked at FIG. 11 from the left side. It is the front view which looked at FIG. 11 from the upper side.

  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.

FIG. 1 is a plan view of a ground-type transport apparatus according to the first embodiment of the present invention.
In this figure, a ground-type transport device 10 is a device for X-ray inspection of a test vehicle 1 while transporting the test vehicle 1, and includes left and right traveling rails 12, left and right moving carriages 20, and left and right front wheel lifting / lowering. The apparatus 30 and the connection apparatus 40 are provided.

  The test vehicle 1 is, for example, a vehicle equipped with a container. The test vehicle 1 has a front wheel 1a, and the ground-type transport device 10 lifts and transports the front wheel 1a of the test vehicle 1.

  The left and right traveling rails 12 are positioned outside the test vehicle 1 along the transport path 2 of the test vehicle 1 and extend horizontally in the transport direction. The conveyance path 2 is a horizontal path extending linearly in the vertical direction in this figure, and the conveyance direction is a direction from bottom to top in this figure as indicated by an arrow 3.

  The left and right mobile trolleys 20 are configured to maintain the same posture and to move on the respective traveling rails 12 in synchronization with each other.

  The left and right front wheel lifting / lowering devices 30 are provided in each movable carriage 20 and configured to be able to move up and down the front wheel 1a of the test vehicle 1 and to be retracted to a retreat position that does not interfere with the test vehicle 1.

  The connecting device 40 is configured to be movable between a “connecting position” that connects each movable carriage 20 and a “retracted position” that does not interfere with the test vehicle 1. In addition, the connecting device 40 is configured to support the overturning moment acting on each moving carriage 20 by connecting each moving carriage 20 when the front wheel 1 a of the vehicle 1 to be tested is raised and lowered by the front wheel raising and lowering apparatus 30. .

2 is a side view of FIG. 1 viewed from the left side, and FIG. 3 is a front view of FIG. 1 viewed from the upper side.
In FIG. 2, each moving carriage 20 has a carriage frame 22, a front wheel 24, and a rear wheel 26.

The carriage frame 22 is a member that extends horizontally along the traveling rail 12 in the transport direction. The carriage frame 22 has a high torsional rigidity that is not deformed by a falling moment that acts when the front wheel 1a of the vehicle 1 to be tested is lifted and conveyed.
In this example, the bogie frame 22 is a rectangular member with a constant cross-section that is integrally formed, but the cross-sectional shape may be changed even in a divided structure.

The front wheels 24 are a pair of front and rear wheels attached to the lower front part of the carriage frame 22.
Further, the rear wheel 26 is a pair of front and rear wheels attached to the lower rear of the carriage frame 22. The rear wheel 26 is preferably provided at a position where the front wheel 1a of the test vehicle 1 is lifted.
The front wheel 24 and the rear wheel 26 are not limited to a pair of front and rear wheels, and may be a single wheel or three or more wheels.

The front wheel 24 and the rear wheel 26 are guided by the traveling rail 12 along the upper surface of the traveling rail 12 and support a downward load acting on the carriage frame 22.
In this example, the front wheel 24 is a drive wheel, and is driven to rotate by a wheel drive device 25 so that the carriage frame 22 moves forward or backward along the traveling rail 12. Further, the rear wheel 26 is a driven wheel, and idles following the movement of the carriage frame 22.
The rear wheel 26 may be a driving wheel, and both the front wheel 24 and the rear wheel 26 may be driving wheels.

In this example, the left and right wheel drive devices 25 are configured to drive the drive wheels (front wheels 24) in synchronization, and the left and right moving carriages 20 always move on the traveling rails 12 in synchronization with each other. It is supposed to be.
The synchronization mechanism for synchronizing the left and right mobile carriages 20 may be electrical synchronization using an encoder, optical synchronization using laser light, or other known synchronization.

In FIG. 3, each movable carriage 20 has a posture holding device 28 for holding the same posture.
In this example, the posture holding device 28 includes a pair of cam followers 28 a that can rotate around a vertical axis, and a support frame 28 b that fixes the cam followers 28 a to the carriage frame 22.
The pair of cam followers 28a are spaced apart from each other in the width direction. A guide plate 4 sandwiched between a pair of cam followers 28 a is attached to a wall 5 surrounding the conveyance path 2.
With this configuration, the ground-type transport device 10 always guides the posture of the mobile carriage 20 by guiding the pair of cam followers 28a with the guide plate 4 in the normal traveling state where the front wheel 1a of the vehicle 1 to be tested is not lifted. Can be kept the same.

FIG. 4 is another configuration diagram of the posture holding device.
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 6 is provided outside the conveyance path 2 to support the auxiliary rail 12b.
In this example, the front wheel 24 (or the rear wheel 26) has a main wheel 27a and an auxiliary wheel 27b. The main wheel 27a and the auxiliary wheel 27b are coaxial in this example, but may be on different axes. Further, it is preferable to provide a plurality of main wheels 27a and auxiliary wheels 27b according to the load to be supported.

The main wheel 27a and the auxiliary wheel 27b guide the moving 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 vehicle 1 to be tested is not supported.
With the configuration of FIG. 4 described above, the ground transfer device 10 guides the auxiliary wheel 27b with a pair of auxiliary rails 12b and 12c in a normal traveling state where the front wheel 1a of the vehicle 1 is not lifted, The posture of the mobile carriage 20 can always be kept the same.

  1 and 2, each front wheel lifting device 30 has a lifting frame 32, a lifting drive device 34, a wheel support arm 36, and a turning drive device 38.

The elevating frame 32 is configured to be movable up and down with respect to the carriage frame 22 by a pair of elevating guides 33 spaced in the conveyance direction.
The elevating drive device 34 is, for example, a hydraulic cylinder or a pneumatic cylinder provided in the carriage frame 22 and drives the elevating frame 32 up and down.
The wheel support arm 36 is a pair of horizontal arms 36a and 36b spaced apart from each other in the transport direction, and one end of each of the wheel support arms 36 is attached to the elevating frame 32 so as to be turnable horizontally around the vertical axis. The turning directions of the pair of horizontal arms 36a and 36b are opposite to each other.
The turning drive device 38 is, for example, a pair of hydraulic cylinders or pneumatic cylinders attached to the elevating frame 32. The retreat position where the pair of horizontal arms 36a and 36b do not interfere with the test vehicle, and the test vehicle 1 The front wheel 1a is positioned before and after the front wheel 1a and is driven to turn between the up and down positions where it can be raised and lowered.

With the configuration of the front wheel lifting device 30 described above, the pair of horizontal arms 36a and 36b are driven to turn by the turning drive device 38 and positioned before and after the front wheel 1a of the vehicle 1 to be tested, and then the lifting drive device 34 is used to raise and lower the lifting frame 32. The front wheel 1a of the vehicle 1 to be tested can be lifted by raising a pair of the horizontal arms 36a and 36b together with the lifting frame 32.
Conversely, from the state in which the front wheel 1a of the vehicle 1 to be tested is lifted, the elevating frame 32 is lowered by the elevating drive device 34 to lower the front wheel 1a to the transport path 2, and then the pair of horizontal arms 36a and 36b are turned. The vehicle can be driven to turn by the drive device 38 and can be retreated to a retreat position that does not interfere with the test vehicle 1.

  The front wheel lifting / lowering device 30 is not limited to the above-described configuration, and may have other configurations as long as the front wheel 1a of the test vehicle 1 can be lifted and retracted to a retreat position that does not interfere with the test vehicle 1. Also good.

1 and 3, the connecting device 40 includes left and right connecting frames 42 and left and right turning drive devices 44.
The left and right connecting frames 42 are attached to the respective movable carriages 20 so that one end thereof can be horizontally turned around the vertical shaft 41 and the other end has an engaging portion 43 that supports a falling moment.
The left and right turning drive devices 44 turn each connection frame 42 horizontally around the vertical shaft 41.
Each connection frame 42 is positioned along the traveling rail 12 at a retracted position that does not interfere with the vehicle 1 to be tested. Each connecting frame 42 is positioned in a direction orthogonal to the traveling rail 12 at a connecting position where each movable carriage 20 is connected, and the left and right engaging portions 43 engage with each other to support the overturning moment.
In this example, the left and right engaging portions 43 are composed of a plurality of flat plate portions 43a that are stacked one above the other at the connecting position and the upper and lower surfaces are in close contact with each other.

FIG. 5 is another configuration diagram of the engaging portion, where (A) is a plan view and (B) is a front view.
In this example, the left and right engaging portions 43 are formed of L-shaped portions that are fitted back and forth at the connection position. In this case, the left and right connecting frames 42 are not synchronized, and in the drawing, the right connecting frame 42 is first positioned at the connecting position, then the left connecting frame 42 is positioned at the connecting position, and the left and right engaging portions 43 are Engage with each other to support the overturning moment.
Even with this configuration, when the front wheel 1a of the vehicle 1 to be tested is moved up and down by the front wheel lifting / lowering device 30, it is possible to support the overturning moment acting on each moving carriage 20 by connecting each moving carriage 20 and obtaining the same effect. It is done.

  FIG. 6 is a plan view (A) and a partial side view (B) of the ground-type transport device in the second embodiment of the present invention.

In FIG. 6, the front wheel 24 and the rear wheel 26 of each mobile carriage 20 are independent wheels, respectively, but the basic configuration is the same as that of the first embodiment.
Moreover, although there are a plurality of (two) lifting drive devices 34 of each front wheel lifting device 30, the basic configuration is the same as that of the first embodiment.
In this example, the posture holding device 28 has a pair of cam followers 28a that can rotate around a horizontal axis. As shown in FIG. 9, which will be described later, the pair of cam followers 28a are spaced apart from each other in the vertical direction. A guide plate 4 sandwiched between a pair of cam followers 28 a is attached to a wall 5 surrounding the conveyance path 2.

  In the example of FIG. 6, the connecting device 40 includes a connecting frame 46, a turning drive device 48, and an engagement fitting 50.

The connection frame 46 is attached to one (left in the figure) of the movable carriage 20 so that one end thereof can be horizontally turned around the first vertical shaft 45 and the other end has an engagement portion 47 that supports a falling moment. In this example, the engaging portion 47 has a U-shaped groove that opens rearward.
The turning drive device 48 is provided on one of the movable carriages 20 (left in the figure), and horizontally turns the connecting frame 46 around the first vertical shaft 45. The turning drive device 48 is a turning drive motor in this example, but may be a hydraulic cylinder or a pneumatic cylinder.
The engaging metal fitting 50 is provided on the other moving carriage 20 (right in the drawing) and engages with the engaging portion 47 at the connecting position. In this example, the engagement fitting 50 is a cylindrical member that fits into the U-shaped groove of the engagement portion 47.

With the above-described configuration, the connecting frame 46 is positioned along the traveling rail 12 at the retracted position, so that the left and right movable carriages 20 can freely move on each traveling rail 12 without interfering with the test vehicle 1. be able to.
Further, when the front wheel 1a of the vehicle 1 to be tested is moved up and down by the front wheel lifting / lowering device 30, the connecting portion 46 supports the falling moment acting on each movable carriage 20 by the engagement portion 47 engaging with the engagement fitting 50. it can.

FIG. 7 is a plan view of a ground-type transport apparatus according to the third embodiment of the present invention.
In this example, the connection frame 46 includes a first connection frame 46A and a second connection frame 46B. One end of the first connection frame 46 </ b> A is attached to be pivotable horizontally around the first vertical shaft 45. Moreover, it has the engaging part 47 which supports a falling moment in the other end of the 2nd connection frame 46B. The turning drive device 48 is a hydraulic cylinder or a pneumatic cylinder in this example, but may be a turning drive motor.

The other end of the first connection frame 46A and the one end of the second connection frame 46B are connected so as to be able to turn horizontally around the second vertical shaft 49.
Further, a second turning drive device 51 that is attached to the first connecting frame 46A and turns the second connecting frame 46B around the second vertical shaft 49 is provided. The second turning drive device 51 is a hydraulic cylinder or a pneumatic cylinder in this example, but may be a turning drive motor.

Other configurations are the same as those of the second embodiment.
With the above-described configuration, the connecting frame 46 is positioned along the traveling rail 12 at the retracted position, so that the left and right movable carriages 20 can freely move on each traveling rail 12 without interfering with the test vehicle 1. be able to.
Further, when the front wheel 1a of the test vehicle 1 is raised and lowered by the front wheel lifting device 30, the turning drive device 48 and the second turning drive device 51 are interlocked to engage the engaging portion 47 with the engagement metal fitting 50, The falling moment acting on each movable carriage 20 can be supported by the connecting frame 46.

  FIG. 8: is the side view (B) which looked at the top view (A) and (A) of the ground-type conveyance apparatus in 4th Embodiment of this invention from the left side.

In FIG. 8, the front wheel 24 and the rear wheel 26 of each mobile carriage 20 are independent wheels, respectively, but the basic configuration is the same as that of the first embodiment.
Moreover, although there are a plurality of (two) lifting drive devices 34 of each front wheel lifting device 30, the basic configuration is the same as that of the first embodiment.
The posture holding device 28 is the same as that in the second embodiment.

In the example of FIG. 8, the connection frame 42 has a moment support wheel 52 that is attached to the lower surface of the connection frame 42 and supports the overturning moment that contacts the conveyance path and acts on the moving carriage. The moment support wheel 52 is a driven wheel, and idles following the movement of the connecting frame 42.
Other configurations are the same as those of the first embodiment. Moreover, you may provide the same moment support wheel 52 in the lower surface of the connection frame 46 in 2nd, 3rd embodiment.

  By providing the moment support wheels 52 described above, the moment support wheels 52 can support the overturning moment acting on each movable carriage 20 when the front wheels 1 a of the vehicle 1 to be tested are raised and lowered by the front wheel lifting device 30. Accordingly, it is possible to reduce or eliminate the load on the engaging portion in the first to third embodiments described above.

  FIGS. 9A and 9B are a plan view (A) and a BB arrow view (B) of a ground-type transport device in a fifth embodiment of the present invention.

In FIG. 9, the front wheel 24 and the rear wheel 26 of each mobile carriage 20 are independent wheels, respectively, but the basic configuration is the same as that of the first embodiment.
Moreover, although there are a plurality of (two) lifting drive devices 34 of each front wheel lifting device 30, the basic configuration is the same as that of the first embodiment.
In this example, the posture holding device 28 has a pair of cam followers 28a that can rotate around a horizontal axis. The pair of cam followers 28a are spaced apart in the vertical direction. A guide plate 4 sandwiched between a pair of cam followers 28 a is attached to a wall 5 surrounding the conveyance path 2.

  In the example of FIG. 9, the connecting device 40 includes a connecting frame 46, a turning drive device 48, and an engagement fitting 50.

The connection frame 46 is attached to one (left in the figure) of the movable carriage 20 so that one end of the connection frame 46 can pivot vertically around the horizontal shaft 54 and the other end has an engagement portion 47 that supports a falling moment. In this example, the engaging portion 47 has a U-shaped concave groove that opens downward.
The turning drive device 48 is provided on one (left in the drawing) of the movable carriage 20 and vertically turns the connecting frame 46 around the horizontal shaft 54. The turning drive device 48 is a turning drive motor in this example, but may be a hydraulic cylinder or a pneumatic cylinder.
The engaging metal fitting 50 is provided on the other moving carriage 20 (right in the drawing) and engages with the engaging portion 47 at the connecting position. In this example, the engagement fitting 50 is a cylindrical member that fits into the U-shaped groove of the engagement portion 47.

With the above-described configuration, the connecting frame 46 is positioned along the traveling rail 12 at the retracted position, so that the left and right movable carriages 20 can freely move on each traveling rail 12 without interfering with the test vehicle 1. be able to.
Further, when the front wheel 1a of the vehicle 1 to be tested is moved up and down by the front wheel lifting / lowering device 30, the connecting portion 46 supports the falling moment acting on each movable carriage 20 by the engagement portion 47 engaging with the engagement fitting 50. it can.

FIG. 10 is a schematic diagram illustrating another configuration of the coupling device.
FIG. 10A is a plan view showing a horizontal turning type in which the connecting frame 46 is horizontally turned. In this figure, the connecting frame 46 is horizontally turned by a turning drive device 48 (turning drive motor), and its tip is positioned by abutting against a stopper 56 provided on the other (upper in the figure) moving carriage 20. It is like that.

  FIG. 10B is a front view, and shows a vertical turning type in which the connecting frame 46 is vertically turned. In this figure, the connecting frame 46 is vertically turned by a turning drive device 48 (turning drive motor), and its tip is positioned by contacting a stopper 56 provided on the other (right in the drawing) moving carriage 20. It is like that.

  FIG. 10C is a plan view showing an example in which the turning drive device 48 that horizontally turns the connecting frame 42 is a hydraulic cylinder or a pneumatic cylinder. In this figure, one connection frame 42 is positioned by contact with the stopper 56, and the other connection frame 42 is positioned by contact with one connection frame 42.

  FIG. 10D is a plan view. The second connection frame 46B is expanded or contracted along the first connection frame 46A by the hydraulic cylinder or the pneumatic cylinder, and the tip of the second connection frame 46B comes into contact with the stopper 56. It is designed to be positioned.

FIG. 11 is a plan view of a ground-type transport apparatus according to the sixth embodiment of the present invention.
In this embodiment, the connecting device 40 and the horizontal arm 36a described above are combined, and the turning device for the connecting device 40 and the horizontal arm 36a is also used.
This figure shows a state in which a combination of the coupling device 40 and the horizontal arm 36a is stored by a broken line.

FIG. 12 is a side view of FIG. 11 viewed from the left side.
This figure shows the storage state of FIG. In order to avoid interference with the turning drive device during storage, the front turning drive device 38 is moved upward. Moreover, in order to store what united the connection apparatus 40 and the horizontal arm 36a, the structure of the moving trolley | bogie 40 and the trolley | bogie frame 22 is changed.

FIG. 13 is a front view of FIG. 11 viewed from above.
This figure is a front view of a state in which the coupling device 40 and the horizontal arm 36a are combined.

In the sixth embodiment, the connecting device 40 includes left and right connecting frames 42 attached to the horizontal arm 36a of each front wheel lifting device 30 so as to be able to turn horizontally. Each connecting frame 42 has an engaging portion 43 that supports a falling moment at the other end.
In addition, each connection frame 42 is positioned along the traveling rail 12 at the retracted position in conjunction with the operation of each front wheel lifting device 30, and is positioned in a direction orthogonal to the traveling rail 12 at the connection position. 43 are engaged with each other to support the overturning moment.

Other configurations are the same as those of the first embodiment.
With the configuration of the sixth embodiment described above, the turning drive device 48 can be omitted, and the cost can be reduced.

According to the configuration of each embodiment described above, the front wheel elevating device 30 and the connecting device 40 can be moved to the retreat position where they do not interfere with the test vehicle 1, so that the left and right movement can be performed without interfering with the test vehicle 1 in this state. The carriage 20 can be freely moved on each traveling rail 12.
Further, the front wheel 1a of the vehicle 1 to be tested can be moved up and down by the front wheel lifting / lowering device 30. When the front wheel 1a is lifted / lowered by the connecting device 40, the left and right movable carriages 20 are connected to support the overturning moment acting on each movable carriage 20. can do.

Since the connecting device 40 connects the left and right movable carriages 20 only when the front wheel 1a is lifted and lowered by the front wheel lifting device 30, it has a height (for example, about 5 m) that does not interfere with the vehicle 1 to be tested like a conventional portal frame. There is no need to do. Accordingly, since the left and right movable carriages 20 can be connected at a low position, the connecting device 40 can be reduced in size and weight, and the total weight can be reduced.
Further, since the connecting device 40 supports only the overturning moment acting on each movable carriage 20, even if the front wheel 1a of the test vehicle 1 is lifted and pulled, there is little deformation of the frame (the carriage frame 22). Therefore, a guide for restricting the deformation of the frame (cart frame 22) is not required, there is no component that can be damaged by a heavy load, and the need for maintenance can be reduced.

  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, 1a front wheel, 2 transport path,
3 transport direction, 4 guide plate, 5 walls, 6 reaction force walls,
10 ground transfer device, 12 traveling rail,
12a main rail, 12b, 12c auxiliary rail,
20 mobile carts, 22 cart frames,
24 front wheels, 26 rear wheels, 28 posture holding device,
28a cam follower, 28b support frame,
30 front wheel lifting device, 32 lifting frame,
33 Lifting guide, 34 Lifting drive device,
36 wheel support arm, 36a, 36b horizontal arm,
38 swivel drive,
40 connecting device, 41 vertical axis, 42 connecting frame,
43 engaging part, 43a flat plate part, 44 turning drive device,
45 first vertical axis, 46 connecting frame,
46A first connection frame, 46B second connection frame,
47 engaging portion, 48 turning drive device, 49 second vertical axis,
50 engagement metal fittings, 51 second turning drive device,
52 Moment support wheel, 54 Horizontal axis, 56 Stopper

Claims (9)

A ground-type transport device for X-ray inspection of a test vehicle while transporting the test vehicle,
Left and right traveling rails that are located outside the test vehicle along the transport path of the test vehicle and extend horizontally in the transport direction;
Left and right mobile trolleys that hold the same posture and can move on each running rail in synchronization with each other;
Left and right front wheel lifting devices provided on each movable carriage, capable of raising and lowering the front wheels of the test vehicle, and retractable to a retreat position that does not interfere with the test vehicle;
A connecting device that is movable between a connecting position that connects each movable carriage and a retracted position that does not interfere with the vehicle under test;
The coupling device supports a falling moment acting on each movable carriage by connecting the left and right movable carriages when the front wheels are raised and lowered by the front wheel elevator. The connecting device
Left and right connecting frames each having one end attached to each movable carriage so as to be able to turn horizontally around the vertical axis and having an engagement portion supporting the overturning moment at the other end;
Left and right turning drive devices that horizontally turn each connecting frame around the vertical axis,
Each connecting frame is positioned along the traveling rail at the retracted position, is positioned in a direction perpendicular to the traveling rail at the connecting position, and the right and left engaging portions engage with each other to support the falling moment. The above-mentioned ground type conveyance apparatus of Claim 1.   The ground transfer device according to claim 2, wherein the left and right engaging portions are composed of a plurality of flat plate portions that are stacked one above the other at the connection position and in which the upper and lower surfaces are in close contact.   The ground-type transfer device according to claim 2, wherein the left and right engaging portions are L-shaped portions that are fitted back and forth at the connection position. The connecting device
A connection frame having one end attached to one movable carriage so as to be turnable horizontally around the first vertical axis, and having an engagement portion supporting the overturning moment at the other end;
A turning drive device provided on one movable carriage for turning the connecting frame horizontally around the first vertical axis;
An engagement fitting provided on the other movable carriage and engaged with the engagement portion at the coupling position;
The connecting frame is positioned along the traveling rail at the retracted position, is positioned in a direction orthogonal to the traveling rail at the connecting position, and the engaging portion engages with the engaging metal fitting to support the falling moment. The above-mentioned ground type conveyance apparatus of Claim 1. The connection frame includes a first connection frame having one end attached so as to be horizontally pivotable about the first vertical axis, and a second connection frame having an engagement portion supporting a tipping moment at the other end. The other end of the connection frame and the one end of the second connection frame are connected so as to be horizontally pivotable about the second vertical axis,
The ground-type transfer device according to claim 5, further comprising a second turning drive device attached to the first connecting frame and turning the second connecting frame about the second vertical axis.   The ground-type transfer device according to claim 2, wherein the connection frame has a moment support wheel attached to a lower surface thereof and supporting a tipping moment that contacts the transfer passage and acts on the moving carriage. The connecting device
A connecting frame having one end attached to one movable carriage so as to be pivotable vertically around a horizontal axis and having an engaging portion supporting a tipping moment at the other end;
A turning drive device provided on one moving carriage for turning the connecting frame vertically around the horizontal axis;
An engagement fitting provided on one movable carriage and engaged with the engagement portion at a coupling position;
The connecting frame is positioned along the traveling rail at the retracted position, is positioned in a direction orthogonal to the traveling rail at the connecting position, and the engaging portion engages with the engaging metal fitting to support the falling moment. The above-mentioned ground type conveyance apparatus of Claim 1. The connecting device
It is attached to each front wheel lifting device so as to be able to turn horizontally, and has a left and right connecting frame having an engagement portion that supports a falling moment at the other end,
Each linking frame is positioned along the traveling rail at the retracted position in conjunction with the operation of each front wheel lifting device, and is positioned in a direction perpendicular to the traveling rail at the linking position, and the left and right engaging portions engage with each other. The ground transportation device according to claim 1, wherein the overturning moment is supported.