JP2017052314A - On-rail service vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-rail service vehicle which is equipped with outriggers and an oscillation frame for iron wheels and which can secure a stable range close to a conventional stable range despite a simpler structure.SOLUTION: An on-rail service vehicle is provided, comprising: a vehicle body; tire wheels for road travel; four (4) iron wheels for rail travel; an oscillation frame enabling a contact of two (2) iron wheels to rails; an oscillation lock mechanism; and outriggers. In an on-rail unmoving heavy work mode, the on-rail service vehicle extends only a pair of outriggers which is arranged on the longitudinally opposite side of the oscillation frame, and regulates a rotation motion in a yaw direction of the oscillation frame by an oscillation lock operation part. Despite an employment of a simple structure of providing only either one of a front or a rear pair of the outriggers, a work range close to a work range provided by a structure equipped with the conventional front and rear two pairs of outriggers can be secured.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a railroad work vehicle. More specifically, the present invention relates to a track-and-rail vehicle provided with a conventional rocking frame for an iron wheel and capable of ensuring a stable region close to the conventional stable region while having a simpler configuration.

  The track-and-rail work vehicle is equipped with tire wheels for road travel and iron wheels for track travel, and when traveling on the road (in the tire wheel use mode), each tire wheel is grounded (the steel wheels are floating) When traveling on a track (in the wheel use mode), each wheel is placed on the track (the tire wheels are not grounded). In addition, as a model of a railroad work vehicle, a truck for carrying a luggage as shown in Patent Document 1 or an aerial work vehicle equipped with a boom-type work table on a vehicle body as shown in Patent Document 2 There is a crane working vehicle equipped with a boom type crane on the vehicle body. In addition, since a truck for carrying goods as shown in Patent Document 1 operates a relatively light object, a mechanism in which several iron wheels swing up and down independently is employed.

  Here, at the time of the iron wheel use mode of the railroad working vehicle, the railroad working vehicle shifts to a plurality of forms in accordance with the work. In particular, an aerial work vehicle as shown in Patent Document 2 moves to three forms as shown below in order to operate a relatively heavy object such as a boom-type work table, and works suitable for each. I do.

  First, there is a traveling work form as a first form. This traveling work form is a work form in which inspection in the tunnel is performed while traveling, and the work table on which the worker is placed is raised to a predetermined position and slowly travels on the rail. At this time, it is configured to prevent the wheel from being removed during traveling by swinging up and down each of the track traveling iron wheels positioned either on the front or rear side. Due to such a configuration, the stable region is small, and the raising and turning of the work table are restricted. As shown in Patent Document 2, an aerial work platform equipped with a relatively heavy boom-type workbench is provided with a swing frame to which a pair of iron wheels are fixed. It can be swung up and down.

  As a second form, there is a light work form that stops on the track. This on-orbit stop light work mode is a mode in which the moving range of the work table on which the operator is placed is expanded by temporarily stopping the function of swinging the iron wheel for on-orbit traveling up and down. In this case, since the relative position between the four steel wheels and the vehicle body does not change, the stable region is widened compared to the traveling work mode, and the work table on which the worker is placed is higher and the left and right It is possible to operate to a biased position.

  As a third form, there is a heavy work form for stopping on the track. This on-orbit stop heavy work form is a form using an outrigger. In general, four outriggers are installed on the front, rear, left and right of the vehicle body of the track-and-rail vehicle. The four outriggers are projected to the left and right sides of the vehicle body, and the tip is installed on the ground to stabilize the vehicle body. Thus, in the on-orbit stop heavy work mode using the outrigger, the stable region is wider than in the on-orbit stop light work mode, and the work table on which the worker is placed is moved to the left and right more biased positions. It is possible to increase the weight of the load loaded on the work table.

  In FIG. 7, explanatory drawing of the stable area | region for every work form of the conventional track-and-rail work vehicle is shown. FIGS. 7A to 7C are views of the railroad work vehicle as viewed from above. The vehicle body, a pair of front and rear iron wheels 31 and 32 (four in total), and a pair of front and rear outrigger 13 tips (total of four). This shows the position of the book. In the drawing of FIG. 7, the upper side is the front of the work vehicle. The hatched area is the stable region. Here, the stable region is the region where the center of gravity of the bodywork of the track work vehicle should be, and if the center of gravity of the bodywork deviates from this stable region, the track work vehicle will tilt and the track work vehicle will work. I can't.

  FIG. 7A shows a stable region in the traveling work mode. In the traveling work mode, since the two rear steel wheels 32 swing up and down, the stable region is a triangle connecting two contact points with the track of the front steel wheel 31 and the center point of the two rear steel wheels 32. It becomes the area represented by. FIG. 7B shows a stable region in the on-orbit stop light work mode. In the on-orbit stop light work mode, the stable region is a region represented by a quadrilateral connecting four contact points between the pair of front and rear iron wheels 31 and 32 (four iron wheels in total) and the track. FIG. 7C shows a stable region in the on-orbit stop heavy work mode. Since the outrigger 13 is used in the on-orbit stop heavy work mode, the stable region is a region represented by a quadrilateral connecting four contact points between the pair of front and rear outriggers 13 and the ground.

  However, in the conventional on-orbit stop heavy work mode of the railroad work vehicle, since the four outriggers 13 are used, there is a problem that the weight of the railroad work vehicle itself is increased due to the weight of the outriggers 13. Also, in places where there are only sleepers under the rail, such as an iron bridge, the distance between the front and rear outriggers 13 and the distance between the sleepers may not match. In this case, an iron plate is prepared between the sleepers and the sleepers. There was also a problem that it was necessary to perform the curing work and it took a long time.

Japanese Patent No. 4538309 JP2015-63301A

  In view of the above circumstances, the present invention is a track-and-work vehicle provided with a rocking frame for an iron wheel. An object is to provide a track-and-terrain vehicle that can reduce the working time sometimes.

A track-and-rail work vehicle according to a first aspect of the present invention includes a traveling vehicle body, road traveling tire wheels provided on the traveling vehicle body, four iron wheels for track traveling provided on the traveling vehicle body, and the four iron wheels. Among them, two iron wheels provided on either the front or the back of the traveling vehicle body are attached, and the swing frame that enables the two iron wheels to contact the track by rotating in the yaw direction of the traveling vehicle body, A track-and-work vehicle equipped with a rocking lock operation unit that restricts the pivoting movement of the rocking frame in the yaw direction and an outrigger that projects to the side of the traveling vehicle body. In the on-orbit stop heavy work mode for stabilizing the vehicle body posture of the orbital work vehicle using the outrigger, the on-orbit stop heavy work mode is provided on the opposite side of the swing frame. When only a pair of outriggers To, the swing frame, characterized by regulating the rotation of the yaw direction by the rocking-lock operation unit.
According to a second aspect of the track work vehicle of the present invention, the track work vehicle is provided with a control device and a rocking lock actuating means for actuating the rocking lock operation unit, and the control device is stopped on the track. Only when it is determined that the outrigger is in the overhang completion position when shifting to the heavy work mode, the rocking lock actuating signal from the rocking lock actuating means is received.
The track-and-terrain work vehicle according to a third aspect of the present invention is the first invention, wherein the track-and-rail work vehicle includes a control device and heavy work mode changing means for making the track-and-work vehicle stop heavy work mode on the track. When the signal from the heavy work mode changing means is received, the outrigger is extended, and after it is determined that the outrigger is at the extension completion position, when a predetermined time is reached, the swing lock operation unit The rocking frame is locked.
The track-and-work vehicle according to a fourth aspect of the present invention is the control device according to the second or third aspect, wherein the control device is connected to an on-rail travel command means for traveling the traveling vehicle body. If it is determined that the vehicle travels, the travel operation signal from the on-rail travel command means is not accepted.
According to a fifth aspect of the orbital work vehicle of the second or third aspect of the invention, the control device is connected to a body operation command means for operating the bodywork of the railroad work vehicle. When it is determined that the moving frame is not locked, a work operation signal from the bodywork operation command means is not accepted.

According to the first aspect of the present invention, the track-and-rail work vehicle has an on-track stop heavy work mode for stopping on the track and stabilizing the vehicle body posture of the track-and-work vehicle using the outrigger. In the embodiment, unlike the conventional case, the pair of outriggers provided on the opposite sides of the swing frame are overhanged and the swing frame operation is restricted by the swing lock operation portion. Even when a simple configuration in which only one pair of front and rear is provided is employed, a work range close to the work range of the conventional configuration in which two pairs of front and rear outriggers are provided can be secured. In addition, even in the configuration in which the conventional two pairs of front and rear outriggers are provided, since the on-orbit stop heavy work form using only a pair of outriggers is sufficient, it is only necessary to secure the installation location of the pair of outriggers. Even when the interval between the outriggers 13 and the interval between sleepers do not coincide with each other, it is not necessary to perform a curing operation or the like, and the working time can be reduced.
According to the second aspect of the present invention, the control device for the track-and-rail work vehicle receives the overhang completion signal from the outrigger overhang completion sensor when shifting to the on-orbit stop heavy work mode. By accepting the swing lock operation signal, it is possible to prevent an operator from operating erroneously, and to prevent the swing lock device from being damaged by operating the swing lock before the outrigger is installed in a state where the outrigger is not overhanging.
According to the third aspect of the present invention, the control device for a railroad work vehicle, when receiving the signal from the heavy work mode changing means, causes the outrigger to perform the extension operation, and after determining that the outrigger is at the extension completion position, When the predetermined time has been reached, the rocking frame is locked by the rocking lock operating unit, thereby preventing the operator from forgetting the rocking lock operation.
According to the fourth aspect of the present invention, when the control device for the track-and-rail work vehicle determines that the swing frame is locked, the controller does not accept the travel operation signal from the on-rail travel command means, thereby causing the operator to perform an erroneous operation. Can be prevented. In other words, it is possible to prevent the railroad work vehicle from running while the swing frame is locked.
According to the fifth aspect of the present invention, when the control device for the track-and-rail work vehicle determines that the swing frame is not locked, it does not accept the work operation signal from the bodywork operation command means, thereby Can be prevented. That is, it is possible to prevent an operation such as turning of a work table as a bodywork in a state unintended by the operator of the railroad work vehicle.

It is explanatory drawing of the stable area | region for every work form of the track-and-rail work vehicle which concerns on embodiment of this invention. It is a side view of the track-and-rail work vehicle which concerns on embodiment of this invention. FIG. 3 is a partial rear view of the roadway working vehicle of FIG. 2. It is a block block diagram of the track-and-rail work vehicle of FIG. It is an operation | movement flowchart from the driving | running | working work form of the track-and-rail work vehicle of FIG. 2 to a stop heavy work form on a track. It is an operation | movement flowchart from the stop heavy work form on a track | truck of the track-and-work vehicle of FIG. 2 to a driving | running | working work form. It is explanatory drawing of the stable area | region for every work form of the conventional track-and-rail work vehicle.

  Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 2, the side view of the track-and-rail work vehicle which concerns on embodiment of this invention is shown. In addition, in this specification, it will be referred to as front, rear, left, right, up and down with reference to an operator sitting in the driver's seat of a railroad work vehicle.

  In an orbital work vehicle according to an embodiment of the present invention, an aerial work machine 2 is mounted on a traveling vehicle body 11 of a vehicle 1. The aerial work machine 2 includes a swivel base 21 provided on the traveling vehicle body 11, a telescopic boom 22 attached to the swivel base 21 so as to be freely raised and lowered, and a work base 23 provided at the tip of the telescopic boom 22. It has been.

  Outriggers 13 are respectively provided at two locations on the front left and right of the traveling vehicle body 11. The outrigger 13 is composed of a jack that can be expanded and contracted downward at the left and right ends, and a support that can extend the jack in the left-right direction of the traveling vehicle body 1.

  Further, the track-and-rail work vehicle can be used for both track-and-rail use. A traveling vehicle body 11 has road wheels 12 (front and rear, left and right) 12 and a track traveling device 3 (front and rear, left and right). 4), and the road traveling by the tire wheel 12 and the track traveling by the track traveling device 3 can be selected and performed.

  In addition, the railroad work vehicle is provided with a turning device 9 for changing the direction of the vehicle 1 in a floating state. The rolling device 9 has a rolling table (grounding plate) 91 that is moved upward and downward by a vertical movement device (hydraulic cylinder) and in a downward projecting position located below the upper storage position (the state depicted in FIG. 2). It can be moved up and down between positions. Note that the turntable 91 has a turntable mechanism.

  The front and rear, left and right (total four) track running devices 3 have substantially the same structure except for the swing mechanism, and are symmetrical in the front end portion and the rear end portion of the traveling vehicle body 11, respectively. Are arranged one by one.

  Each of the track traveling devices 3 on the front side holds the front iron wheel 31 with a holding table 33, pivots the holding table 33 on a support 14 provided on the traveling vehicle body 11 with a shaft 15, and moves the holding table 33 up and down ( The hydraulic cylinder 30 can be swung up and down. The track-and-work vehicle according to the present embodiment is driven by a drive motor 34 provided on each of the left and right track traveling devices 3 of the front iron wheel 31 on the front side and the rear iron wheel 32 on the rear side. A hydraulic motor is used as the drive motor 34 for the iron wheel, and the drive motor 34 can be operated by turning on a switch for the drive motor. As another embodiment, an electric motor may be used as the iron wheel drive motor 34. Further, in this embodiment, the track traveling device 3 is provided on all four wheels, but a configuration in which the drive motor 34 is provided on either the front iron wheel 31 or the rear iron wheel 32 is also possible.

  Each of the track traveling devices 3 on the rear wheel side holds the rear iron wheel 32 by a holding base 33, and supports and holds the holding base 33 on both ends (supports 41) of a swing frame 4 to be described later by shafts 42. The table 33 is configured to be able to swing up and down by a vertical movement device (hydraulic cylinder) 30.

  The front iron wheel 31 and the rear iron wheel 32 are simultaneously swung up and down by the up and down movement device 30 between the down movement use position and the up movement storage position shown in FIG. The spacing between the left and right iron wheels 31 on the front wheel side and the left and right iron wheels 32 on the rear side is set to be the same as the applied track width (interval between the left and right rails R).

  In the track-and-work vehicle according to the present embodiment, the operation is performed as follows in order to switch from the tire wheel use mode by the tire wheel 12 to the iron wheel use mode by the steel wheels 31 and 32. That is, (1) The work vehicle is run and stopped at a position where the front and rear tire wheels 12 straddle the track (both rails R). (2) Next, the vertical movement device of the rolling device 9 is extended to move the rolling table 91 downward so that each tire wheel 12 floats from the ground. (3) The vehicle 1 is turned so that the front and rear four iron wheels 31 and 32 are positioned directly above the left and right rails R with the rolling device 9 as the center. (4) The four steel wheels 31, 32 on the front, rear, and left and right sides project downward as shown in FIG. 2 (5) The four steel wheels 31, 32 roll in a state corresponding to the left and right rails R, respectively. The vertical movement device 90 of the vehicle device 9 is reduced, and the four iron wheels 31 and 32 are placed on the left and right rails R, respectively.

  The track-and-rail work vehicle according to the present embodiment operates when the drive motor 34 (FIG. 1) of the iron wheels 31 and 32 is operated in a state where the four steel wheels 31 and 32 are placed on the left and right rails R. Can travel on the track, and can be stopped on the track by the brake device 36, and the aerial work machine 2 is operated in the stopped state. In addition, the form of the various operations by the aerial work machine 2 will be described later.

  In FIG. 3, the partial rear view of the track-and-rail work vehicle which concerns on embodiment of this invention is shown. In the track-and-rail work vehicle of this embodiment, in order to prevent the phenomenon that one of the four iron wheels 31 and 32 is lifted off the rail when the iron wheel is run in a place where the left and right rails R have a height difference (particularly twist). A swing frame 4 is provided that can swing the left and right rear iron wheels 32 in a seesaw shape.

  In the track-and-rail work vehicle of the present embodiment, as shown in FIG. 3, the longitudinally intermediate portion of the left and right swing frame 4 is pivotally supported on the lower surface near the rear end of the traveling vehicle body 11 by the front and rear support shafts 40. The swing frame 4 is supported so as to swing up and down like a seesaw, and the left and right rear iron wheels 32 are attached to the left and right ends of the swing frame 4, respectively.

  With this configuration, in the track-and-rail work vehicle according to the present embodiment, the swing frame 4 moves up and down even when the track is curved and the left and right rails R have a height difference (twist) when traveling on the track by the iron wheels 31 and 32. As a result, the left and right rear iron wheels 32 follow the rail height difference, and the four wheels of the left and right front iron wheels 31 and the left and right rear iron wheels 32 can always run while being in contact with the rail R. Note that the left and right front iron wheels 31 are fixedly attached to the traveling vehicle body 11 in a downward use position (in a state where the left and right front wheels 31 do not swing up and down).

  In addition, in the track-and-rail work vehicle of this embodiment, the rocking frame 4 (the left and right rear iron wheels 32) swings when the work is performed by the work implement 2 while the work vehicle is stopped on the track. A rocking lock operation unit 72 that restricts movement, that is, movement in the yaw direction, is provided.

  As shown in FIG. 3, the rocking lock operation unit 72 includes two cylinders 50 that are provided on the left and right sides of the support shaft 40 of the rocking frame 4.

  Here, the working mode at the time of the wheel use mode of the railroad working vehicle will be described in detail. An aerial work vehicle, which is one of railroad work vehicles, shifts to a plurality of forms according to work. As described in the background art, the track-and-work vehicle according to the present embodiment shifts to three modes: “traveling work mode”, “on-orbit stop light work mode”, and “on-orbit stop heavy work mode”. In these “forms”, for example, when an operator of a railroad work vehicle operates a corresponding switch to automatically operate a plurality of parts and shift to the “form” corresponding to the switch, In some cases, the operator operates a plurality of parts such as a travel switch, an outrigger extension switch, etc., and transforms them into a certain “form”. However, at least the operating range of the aerial work machine 2 in this work form is presented to the operator from the manufacturer of the track work vehicle, and an area where the work can be stably performed in that form needs to be defined. There is.

  The track-and-rail work vehicle according to this embodiment includes only a pair of front triggers 13 (near the front iron wheel 31 on the front side). In the track-and-rail work vehicle according to the present embodiment, in the on-orbit stop heavy work mode, only the pair of front outriggers 13 located on the opposite side of the swing frame 4 are projected, and the swing lock operation unit 72 prevents the swing frame 4 from moving in the yaw direction. Thus, FIG. 1C shows a stable region when only the pair of front outriggers 13 are projected. FIG. 1 is an explanatory diagram of a stable region for each work mode of the track work vehicle according to the present embodiment. 1 (A) and 1 (B) are the same stable region as FIGS. 7 (A) and 7 (B), and also in FIG. 1 (C) showing the stable region in the on-orbit stop heavy work mode, FIG. Compared with the stable region of (C), the rear stable region is narrowed, and a substantially equivalent stable region can be secured.

  The track-and-work vehicle has a heavy work mode on the track for stopping on the track and stabilizing the vehicle body posture of the track-and-work vehicle by using the outrigger 13. The operation unit 72 prevents the swing frame 4 from moving in the yaw direction, and projects only the pair of outriggers 13 on the opposite side to the front or rear side where the swing lock operation unit 72 is provided. In contrast, even when a simple configuration in which only one pair of front and rear outriggers 13 is provided is employed, a work range close to the work range of the conventional configuration in which two pairs of front and rear outriggers 13 are provided can be secured.

  In the present embodiment, the outrigger 13 includes only a pair of front sides, but the present invention is not limited to this. In other words, even with the conventional configuration in which a pair of front and rear outriggers 13 is provided, it is possible to have two on-orbit stop heavy work modes. In such a case, in the on-orbit stop heavy work form using only the pair of outriggers 13, it is only necessary to secure the installation place of the pair of outriggers 13, and the advantage that the restriction of the installation place of the outriggers 13 is reduced. Car has.

  In FIG. 4, the control block block diagram of the railroad work vehicle which concerns on this embodiment is shown. The track-and-rail work vehicle according to the present embodiment includes a control device 6. An input device that outputs an input signal to the control device 6 is shown on the left side of FIG. 4, and an output device that receives an output signal from the control device 6 is shown on the right side of FIG. The operation part for the operator of the railroad work vehicle to perform an operation includes an outrigger extension instruction means 51 for projecting the outrigger 13 in the left-right direction from the storage position, and an outrigger storage instruction for accommodating the protruding outrigger 13 in the storage position. Means 52, a rocking lock operation instructing means 53 for actuating the rocking lock operating unit 72 to lock the rocking of the rocking frame 4, and a rocking lock for enabling the rocking frame 4 to rock. The rocking lock release instructing means 54 for actuating the operating unit 72, the outrigger 13 and the rocking lock operating unit 72 are simultaneously operated to automatically shift the orbital work vehicle from the traveling work form to the on-orbit stop heavy work form. Heavy work form changing means 55 for the purpose, heavy work form releasing means 56 for automatically shifting from the on-orbit stop heavy work form to the traveling work form, and the iron wheel of the track work vehicle 1 and 32 are operated to operate the track work vehicle on the track R. The track traveling instruction unit 57, the track direction switching unit 58 that switches the direction in which the track traveling instruction unit 57 starts running, and the aerial work implement 2 There is provided a body operation command means 59 that operates to a predetermined position, and is electrically connected to the control device 6.

  In addition, the outrigger extension completion sensor 61 for notifying that the outrigger 13 has protruded in the left-right direction and has reached a position suitable for working in the on-orbit stop heavy work mode, and that the outrigger 13 is in the retracted position. An outrigger storage completion sensor 62 for informing, a lock completion sensor 63 for informing that the rocking lock operation unit 72 is activated and the rocking frame 4 is locked, and an unlocking completion sensor for informing that the rocking frame is unlocked. 64 are provided at appropriate locations on the track-and-rail work vehicle, and each is electrically connected to the control device 6.

  Further, the control device 6 is electrically controlled by an outrigger operation portion 71 for operating the outrigger 13 and a swing lock operation portion 72 for locking the swing frame 4 in the same manner as the track traveling device 3. It is connected to the device 6. In this embodiment, the rocking lock operation unit 72 includes a valve for operating the piston of the cylinder 50 in addition to the cylinder 50.

  With reference to FIGS. 5 and 6, an operation flow in which the operator of the railroad work vehicle moves from the traveling work form to the on-orbit stop heavy work form will be described. FIG. 5 is an operation flow diagram of each part from the running work mode to the on-orbit stop heavy work mode of the track-and-rail work vehicle of this embodiment, and FIG. It is an operation | movement flowchart of a site | part.

  First, the operation flow of each part from the traveling work form to the on-orbit stop heavy work form will be described. Prior to entering this operation flow, the track-and-rail work vehicle is stopped on the track. In step 01 (hereinafter described as S01), the operator of the railroad work vehicle operates the heavy work mode changing means 55 and inputs an input signal to the control device 6. Until the input signal is input, the control device 6 is in a standby state. When the input signal is input, the control device 6 advances the flow to S02.

  In S02, the control device 6 outputs an output signal to the outrigger operation unit 71, and causes the outrigger operation unit 71 to operate the outrigger 13 to a predetermined overhang position.

  In S03, the control device 6 determines that the outrigger 13 is not in the overhang position, and waits for a completion signal from the outrigger overhang completion sensor 61. When the outrigger 13 moves to the overhanging position and the control device 6 receives the completion signal from the outrigger overhang completion sensor 61, the control device 6 determines that the outrigger 13 is in the overhanging position, and the control device 6 performs the flow in S04. Proceed to. The control device 6 determines whether or not the outrigger 13 is in the overhang position based on the completion signal from the outrigger extension completion sensor 61. However, the present invention is not limited to this. For example, an operation from a motor or the like for operating the outrigger 13 is performed. It is also possible for the control device 6 to determine based on the distance.

  In S04, the control device 6 waits for a predetermined time. The predetermined time is about 0 second to several tens of seconds. This time is set by the manufacturer of the roadway work vehicle before delivery of the roadway work vehicle. However, the present invention is not limited to this, and the operator of the railroad work vehicle can set this time from the operation unit. When the predetermined time has elapsed, the control device 6 advances the flow to S05.

  In S <b> 05, the control device 6 outputs an output signal to the rocking lock operation unit 72, and the rocking frame 4 is fixed by the rocking lock operation unit 72.

  In S06, if there is no completion signal from the lock completion sensor 63, the control device 6 determines that the swing frame 4 is not locked, and waits for a completion signal from the lock completion sensor 63. When the cylinder 50 constituting the rocking lock operation unit 72 is operated and the control device 6 receives the completion signal from the lock completion sensor 63, the control device 6 determines that the rocking frame 4 is locked, and the railroad work vehicle. The operator is made aware that has become a heavy work form that stops on orbit. Although the method of cognition is not particularly limited, for example, it is possible to provide a light-emitting device for informing the operation unit that the heavy work mode is stopped on the track.

  Upon receiving the signal from the heavy work mode change means 55, the control device 6 for the railroad work vehicle causes the outrigger 13 to perform the extension operation, and the outrigger 13 has completed the extension by the completion signal from the outrigger extension completion sensor 61 or the like. When a predetermined time arrives after it is determined that the position is in the position, the rocking lock operation unit 72 is operated excessively so that the rocking lock operation unit 72 is excessively moved when shifting to the on-orbit stop heavy work mode. There is no load. Therefore, the operator can shift to the on-orbit stop heavy work mode more reliably.

  Next, an operation flow of each part from the on-orbit stop heavy work mode to the travel work mode will be described. In step 11, the operator of the railroad work vehicle operates the heavy work mode release means 55 and inputs an input signal to the control device 6. Until the input signal is input, the control device 6 is in a standby state. When the input signal is input, the control device 6 advances the flow to S12.

  In S12, the control device 6 outputs an output signal to the outrigger operation unit 71, and the outrigger operation unit 71 operates the outrigger 13 to the storage position.

  In S13, the control device 6 waits for a completion signal from the outrigger storage completion sensor 62. When the outrigger 13 operates to the storage position and the control device 6 receives a completion signal from the outrigger storage completion sensor 62, the control device 6 advances the flow to S14.

  In S14, the control device 6 outputs an output signal to the rocking lock operation unit 72, operates the rocking lock operation unit 72, and advances the flow to S15.

  In S15, when there is no completion signal from the unlock completion sensor 64, the control device 6 determines that the swing frame 4 is not unlocked and waits for a completion signal from the unlock completion sensor 64. When the cylinder 50 constituting the swing lock operation unit 72 operates and the control device 6 receives a completion signal from the unlock completion sensor 64, the control device 6 determines that the swing frame 4 is unlocked. Then, the operator is made aware that the track-and-rail work vehicle is in the traveling work form. In this state, when the operator issues a travel command using the on-rail travel command means 57, the track-and-rail work vehicle travels on the rail R.

  At this time, if the completion signal from the unlock completion sensor 64 is not input to the control device 6, the control device 6 allows the operator of the track work vehicle to manually drive the track work vehicle from the on-rail travel instruction means 57. Even if it tries, it does not accept the traveling operation signal from the on-rail traveling instruction means 57. In addition, when the on-rail travel instruction means 57 is operated in a state where the completion signal from the unlock completion sensor 64 is not input to the control device 6, an alarm or the like is issued to alert the operator. The state is made known to the operator by the knowledge means.

  When there is no unlock completion signal from the unlock completion sensor 64, that is, when it is determined that the swing frame is locked, the control device 6 of the track-and-work vehicle has a travel operation signal from the on-rail travel instruction means 57. Is not received, it is possible to prevent the roadway working vehicle from traveling without being intended by the operator of the roadway working vehicle.

  In addition, when the control device 6 determines that the swing frame 4 is not locked, such as when in the traveling work mode, the track work vehicle according to the present embodiment is manually operated from the body operation command means 59. Even if the bodywork operation command means 59 is operated to operate the vehicle height work machine 2, the work motion signal from the bodywork operation command means 59 is not accepted.

  When the control device 6 of the railroad work vehicle determines that the swing frame 4 is not locked, the control device 6 does not accept the work motion signal from the bodywork command command means 59, so that the operator of the railroad work vehicle intends It is possible to prevent the working operation of the railroad work vehicle from being performed.

  In the track-and-work vehicle according to the present embodiment, the flow for automatically shifting to the on-orbit stop heavy-work mode by the heavy work mode change means 55 has been described. It is also possible to use an upper stop heavy work form. Also in this case, as described with reference to FIG. 5, after the outrigger 13 is extended, the swing frame 4 is locked to prevent the swing frame 4 from moving in the yaw direction. At this time, if there is no overhang completion signal from the outrigger overhang completion sensor 61, the control device 6 does not accept a rocking lock operation signal due to the operation of the rocking lock operation instructing means 53 by the operator.

  When the control device 6 of the railroad work vehicle determines that the outrigger 13 is not in the overhang completion position, such as when there is no overhang completion signal from the outrigger overhang completion sensor 61, the swing lock operation instruction means 53 By not accepting the dynamic lock operation signal, the operator does not lock the swing frame 4 against his / her intention when the outrigger is not overhanging, and the outrigger operation unit 71 and the swing lock operation unit 72 are prevented. Is not overloaded. Therefore, the operator can operate the railroad work vehicle more reliably.

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 4 Swing frame 6 Control apparatus 12 Tire wheel 13 Outrigger 31 Front iron wheel 32 Rear iron wheel 53 Swing lock operation instruction means 55 Heavy work form change means 57 On-gauge travel instruction means 59 Bodywork instruction means 61 Outrigger tension Exit completion sensor 64 Unlock completion sensor 72 Oscillation lock operation unit

Claims (5)

A traveling vehicle body,
Tire wheels for road driving provided on the traveling vehicle body;
Four iron wheels for track running provided on the traveling vehicle body;
Of the four iron wheels, two iron wheels provided on either side of the traveling vehicle body are attached, and the two iron wheels can contact the track by rotating in the yaw direction of the traveling vehicle body. And a swing frame,
A rocking lock operating part for restricting the pivoting movement of the rocking frame in the yaw direction;
An outrigger projecting to the side of the traveling vehicle body;
A track-and-rail work vehicle equipped with
The railroad work vehicle stops on a track, and using the outrigger, has an on-track stop heavy work mode for stabilizing a vehicle body posture of the railroad work vehicle,
In the on-orbit stop heavy work mode, only a pair of outriggers provided on the opposite side of the swing frame are projected,
The swing motion of the swing frame in the yaw direction is restricted by the swing lock operation portion.
A track-and-terrain vehicle characterized by this. In the above-mentioned track and land working vehicle,
A control device;
Oscillating lock operating means for operating the oscillating lock operating unit, and
When the control device determines that the outrigger is in the overhang completion position when shifting to the on-orbit stop heavy work mode,
Receiving a rocking lock actuation signal from the rocking lock actuation means;
The track-and-rail work vehicle according to claim 1. In the above-mentioned track and land working vehicle,
A control device;
A heavy work form changing means for making the railroad work vehicle stop heavy work form on the track, and
The controller is
When receiving a signal from the heavy work form changing means,
Causing the outriggers to extend,
After determining that the outrigger is in the overhang completion position,
When a predetermined time is reached, the rocking frame is locked by the rocking lock operating unit.
The track-and-rail work vehicle according to claim 1. In the control device,
An on-rail travel command means for traveling the traveling vehicle body is connected,
The controller is
If it is determined that the swing frame is locked,
Do not accept a travel operation signal from the on-rail travel command means,
The track-and-rail work vehicle of Claim 2 or Claim 3 characterized by the above-mentioned. In the control device,
A bodywork operation command means for operating the bodywork of the railroad work vehicle is connected,
The controller is
If it is determined that the swing frame is not locked,
Do not accept work movement signals from the bodywork movement command means,
The track-and-rail work vehicle of Claim 2 or Claim 3 characterized by the above-mentioned.

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