JP6139737B1 - Detachment structure between railway vehicle and snow removal equipment - Google Patents

Abstract

An object of the present invention is to easily and safely attach and detach a snow removal device to and from a railway vehicle without using a large working machine. A detachable structure of a track vehicle 4 traveling on a rail and a rotary snow removing device 9 provided at an end of the track vehicle 4 is provided. The rotary snow removal device 9 includes an elevating link 53 and is connected to an end of the track vehicle 4 via the elevating link 53 so as to be able to be raised and lowered. In addition, here, a cart capable of mounting the rotary snow removal device 9 and a tip provided on the track vehicle 4 and moving the tip 62 as the tip movable portion of the lift link 53 in a state where the rotary snow removal device 9 is placed on the cart. By being operated, a claw 81 of the tip end portion 62 and a claw receiving portion 82 as a receiving portion that can be engaged and disengaged are provided. [Selection] Figure 12

Description

  The present invention relates to a detachable structure between a railway vehicle and a snow removal device that can safely perform the attachment and detachment work of the snow removal device provided at the end of the railway vehicle.

  A railroad snowplow with a snowplow installed at the end of a railcar is well known. For example, in Patent Document 1, a rotary snowplow is installed at one end of a railcar, while a Russell snowplow is installed at the other end of the railcar. And a flanger attached to the front center portion of the Russell snow removal device by an air cylinder is moved up and down by the air cylinder.

  In another patent document 2, a rotary snow removal device is attached to and supported at the end of a railway vehicle by an elevating link, the rotary snow removal device is lowered to a working position during snow removal work, and the rotary snow removal device is raised to a storage position during forwarding. A railway snowplow is disclosed.

Japanese Patent No. 5315329 Japanese Patent No. 5538059

  The railway snowplow described above, as shown in Patent Document 2, raises the snowplow using a lift link so that the snowplow is separated from the rail as much as possible during forwarding other than during snow removal, In the summer when snow removal is not required, the snow removal device is removed from the railway vehicle and stored. In winter, when snow removal is required, the snow removal device must be taken out of the storage location and attached to the railway vehicle.

  However, in the conventional work for attaching / detaching the snow removal device to / from the railway vehicle, the snow removal device must be moved and transported in a suspended state using a work machine such as a crane each time, without using a large work machine. There was a need for a safe way to do work.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a structure for attaching and detaching a railway vehicle and a snow removal device that can easily and safely perform the operation of attaching and removing the snow removal device to and from a railway vehicle without using a large working machine.

The invention of claim 1 is an attachment / detachment structure between a railway vehicle traveling on a track and a snow removal device provided at an end of the railway vehicle, wherein the snow removal device includes an elevating link including a tip movable portion , via lift links it is vertically movably connected to an end portion of the railway vehicle, provided in front Symbol railway vehicle, while placing the snow removing device the snow removal device can be placed mounting table, the lift link By moving the tip movable part up and down, the tip movable part and a receiving part that can be engaged and disengaged are provided.

  According to a second aspect of the present invention, the receiving portion is formed by a hook-shaped hook having an upper portion opened.

  According to the first aspect of the present invention, in a state where the snow removal device is mounted on the end of the railway vehicle via the lifting link without placing the snow removal device on the mounting table, the snow removal device is lowered to the working position to perform the snow removal work. It is possible to carry out or forward the railway vehicle by raising the snow removal device to the storage position. On the other hand, when the snow removal device is placed on the mounting table so as to support the dead weight of the snow removal device, the tip movable portion of the lifting link moves up and down, and the tip of the lifting link is placed on the receiving portion provided on the railway vehicle. The movable part can be engaged and disengaged. Therefore, it is possible to easily and safely attach and detach the snow removal device to and from the railway vehicle by using a simple mounting table that can mount the snow removal device instead of a large work vehicle such as a crane.

  In the invention of claim 2, it is possible to reliably confirm that the distal end movable portion is engaged with and disengaged from the hook by inserting and removing the distal end movable portion of the lift link to and from the upper portion of the opened hook.

The snow removal apparatus alone removed from railway vehicle in a state in which on a cart to move in orbit by the first wheel, can be moved also on the ground other than orbit another second wheel. Therefore, the snow removal device can be easily transported between the end of the railway vehicle and an arbitrary storage location using a wheeled carriage.

It is a front view of the snowplow for railways in the state where the snow removal device in one embodiment of the present invention is installed. It is a plane sectional view which shows the state of the apparatus provided on a floor same as the above. It is a plane sectional view which shows the state of the apparatus provided in the lower part of a frame same as the above. It is a front view which shows each part of a power transmission system same as the above. It is a top view which shows the connection part of a railway vehicle and a snow removal apparatus same as the above. It is a snow removal apparatus at the time of snow removal work and the principal part front view of the periphery of the same as the above. FIG. 2 is a front view of the essential parts of the snow removal device and its surroundings during forwarding in which the snow removal device is stored. It is the principal part side view which looked at the one end side of the railway vehicle in the state which attached the bracket same as the above. It is a front view of the state which mounted the snow removal apparatus single-piece | unit on the trolley | bogie same as the above. It is the side view seen from the other side in the state which mounted the snow removal apparatus single-piece | unit on the trolley | bogie same as the above. It is a photograph which shows the connection state of a hydraulic hose as above. It is a photograph which shows the positional relationship of a nail | claw and a receiving part. It is a photograph when engaging the nail with the receiving part.

  Hereinafter, a preferred embodiment of a structure for attaching and detaching a railway vehicle and a snow removal device according to the present invention will be described in detail with reference to the accompanying drawings.

  First, the construction as a railway snowplow will be described. As shown in FIGS. 1 to 4, the track vehicle 4 traveling on the rail 1 with the front and rear wheels 2, 3 has rotatable wheels 2, 3. A frame-like underframe 5 is supported, and an operator cab 6 and an engine room 7 are disposed above the underframe 5. A rotary snow removal device 9 is detachably connected to the rotary snow removal device connecting portion 8 on one end side of the underframe 5, and a snow plow 11 is attached to and detached from a snow plow connection portion 10 on the other end side of the underframe 5. Connected as possible.

In the engine room 7, a main diesel engine 12 serving as a driving power source for the track vehicle 4 in a normal state and a power shift transmission 13 coupled to the main diesel engine 12 are supported by the frame 5. Are placed side by side. The power of the main diesel engine 12 is transmitted to the power shift transmission 13, and the power shift transmission 13 is provided with the power transmitted from the main diesel engine 12 below the underframe 5 during normal forwarding without operating the snow removal device 9. This is transmitted to the front wheels 2 via the front traveling propulsion shaft 14 and the final reduction gear 15, and also via another rear traveling propulsion shaft 16 and the final reduction gear 17 that are also provided below the underframe 5. , It is configured to transmit to the rear wheel 3. Here, the output shaft 18 of the power shift transmission 13 is connected to the base end portions of the traveling propulsion shaft 14 and the traveling rear propulsion shaft 16 configured by a propeller shaft. Further, the final reduction gears 15 and 17 are constituted by bevel gears that are always meshed in order to obtain a predetermined reduction ratio, and the wheels 2 are attached to the final reduction gear 15 connected to the tip of the propulsion shaft 14 for traveling. On the other hand, the wheel 3 is attached to the final reduction gear 17 connected to the tip of the rear propulsion shaft 16 for traveling.

  The underframe 5 further includes an auxiliary electric motor 21 with a speed reducer as a driving power source in case of an emergency when the main diesel engine 12 breaks down, and the rotating shaft of the auxiliary electric motor 21 is a power shift transmission. 13, and the power of the auxiliary electric motor 21 is directly transmitted to the power shift transmission 13. The auxiliary electric motor 21 here is continuously operated at a slow speed of about 3.0 km / h when the track vehicle 4 is a single vehicle, and at a slow speed of about 1.5 km / h when the rotary snow removal device 9 and the snow plow 11 are towed. Any small motor having a possible capacity may be used. For example, an inverter motor with a 5.5 kW cyclo (registered trademark) speed reducer is used.

  The power shift transmission 13 is composed of an integral structure of a torque converter portion and a transmission portion, and is connected to the main diesel engine 12 and auxiliary electric power according to an operation from an instrument operation panel (not shown) installed in the cab 6. The power from the motor 21 is intermittently connected, and either the power from the main diesel engine 12 or the power from the auxiliary electric motor 21 is transmitted from the output shaft 18 of the power shift transmission 13 to the front propulsion shaft 14 for traveling and A function as a clutch 22 that transmits to the propulsion shaft 16 for traveling is provided. Thus, in the present embodiment, the power from the auxiliary electric motor 21 to the output shaft 18 can be switched to the power from the main diesel engine 12 to the output shaft 18 by the clutch 22, and the auxiliary electric motor 21 5 is supplied with power from an engine generator 23 provided on the other end side. The engine generator 23 is used independently of the main diesel engine 12 as a power source for running the track vehicle 4 in an emergency, and for the main diesel engine 12 disposed in the lower part of the underframe 5 in the present embodiment. In addition to the fuel tank 24, a fuel tank (not shown) for the engine generator 23 is provided.

  31 is a hydraulic pump such as a piston pump connected to the clutch 32 of the power shift transmission 13. Here, the clutch 32 is configured by a PTO clutch or the like that enables intermittent transmission of power from the main diesel engine 12 to the hydraulic pump 31. The hydraulic pump 31 constitutes a hydraulic mechanism 35 in combination with a hydraulic motor 33 such as a piston motor, and is connected to the clutch 32 to transmit power from the main diesel engine 12 to the hydraulic pump 31. The output shaft 36 of the hydraulic motor 33 is rotated by the hydraulic pressure to drive the rotary snow removal device 9 attached to the track vehicle 4. A turntable 38 that lifts and rotates the track vehicle 4 using the hydraulic pressure from the hydraulic pump 31 is provided in the lower center of the frame 5.

In this embodiment, although not shown in the drawings, an engine start key for starting or stopping the main diesel engine 12 and a motor running for permitting or stopping power supply from the engine generator 23 to the auxiliary electric motor 21. Rotation of a motor clutch switch for operating the clutch 22 and rotation of the auxiliary power supply motor 21 in order to use the key or the power source for the output shaft 18 of the power shift transmission 13 as either the main diesel engine 12 or the auxiliary electric motor 21. A direction switch that rotates the output shaft 18 of the power shift transmission 13 in the forward direction or the reverse direction with respect to the shaft, or the output shaft 18 of the power shift transmission 13 in the forward direction or the reverse direction with respect to the rotation shaft of the main diesel engine 12. Reverse operation switch that rotates in the direction or clutch PTO switch for connecting or disconnecting 2 and a snow removal switch for allowing the hydraulic pressure from the hydraulic pump 31 to act not only on the wheel base 38 but also the hydraulic motor 33 to permit the operation of the rotary snow removal device 9 which is a hydraulic device. Are arranged on the instrument operation panel as manually operable operation units.

  In addition, in the track vehicle 4, first and second speed electromagnetic valves 41, forward electromagnetic valves 42 and reverse electromagnetic valves 43 that are respectively attached to the power shift transmission 13, a cooling device 44 adjacent to the main diesel engine 12, and a hydraulic mechanism 35. A hydraulic oil tank 45 for storing the hydraulic oil is disposed. The cooling device 44 is installed inside the engine room 7 for cooling water and an intercooler for the main diesel engine 12 and for an oil cooler for the power shift transmission 13. A hydraulic hose (not shown) that distributes hydraulic fluid as a hydraulic mechanism 35 between the hydraulic pump 31 provided in the power shift transmission 13 and the hydraulic motor 33 provided on the rotary snow removal device 9 side of the underframe 5. ) Is connected. FIG. 3 shows a state where the rotary snow removing device 9 and the plow 11 which are snow removing devices are not attached.

  Next, the structure which concerns on the rotary snow removal apparatus 9 and its peripheral attachment / detachment structure is demonstrated with reference to FIGS. The rotary snow removal device 9 has a lift link 53 in which a hood-like cutter case 52 is attached to one side of a device main body 51 containing a blower (not shown), and a plurality of extendable arms are combined on the other side of the device main body 51. And a chute 54 as a snow thrower is attached to the upper portion of the apparatus main body 51. The cutter case 52 is provided with a cutter 55 as an auger so as to be rotatable. When the rotary snow removal device 9 is operated, the powder-purified snow guided to the center of the rotating cutter 55 is sucked into the blower and shoots from there. 54 is blown out to the side of the rotary snow removal device 9.

  Further, in order to apply a rotational force to the cutter 55 of the rotary snow removal device 9 from the track vehicle 4 side, the cutter 55 is mechanically connected to a snow removal device drive propulsion shaft 56 that can be expanded and contracted by a propeller shaft. The tip of the snow removal device drive propulsion shaft 56 is detachably provided on the output shaft 36 of the hydraulic motor 33 attached to the track vehicle 4. By connecting the tip of the snow removal device drive propulsion shaft 56 to the output shaft 36, The cutter 55 can be driven to rotate during the operation of the hydraulic motor 33. In the present embodiment, the hydraulic pressure generated by the hydraulic mechanism 35 is used to expand and contract the lifting link 53, and as a result, lift and tilt the rotary snow removal device 9, rotate the chute 54, and tilt the flap 57 attached to the top of the chute 54. In order to make this possible, a plurality of hydraulic hoses 58 (see FIG. 11 and the like) for circulating hydraulic oil are connected between the track vehicle 4 and the rotary snow removal device 9. In FIG. 1, the descending position of the rotary snow removal device 9 during snow removal work is indicated by a solid line, and the ascending position of the rotary snow removal device 9 during storage or forwarding is indicated by a broken line, to clarify the positional relationship between the two. Therefore, the snow removal device drive propulsion shaft 56 is intentionally omitted.

The elevating link 53 includes a base 61 attached and fixed to the other side of the apparatus main body 51, a tip part 62 detachably connected to the rotary snow removal device connecting part 8 of the track vehicle 4, and the base 61 and the tip part 62. It is comprised by the arm part 63 provided between. The arm portion 63 includes an upper support arm 64 and a lower support arm 65 that do not expand and contract, a pair of left and right extendable arms 66 that extend and contract, and a plate 67 that is attached and fixed to the lower support arm 65 . The base ends of the upper support arm 64 and the lower support arm 65 are rotatably connected to the base portion 61, while the distal ends of the upper support arm 64 and the lower support arm 65 are rotatably connected to the distal end portion 62. The base end of the telescopic arm 66 is rotatably connected to the distal end portion 62, and the distal end of the telescopic arm 66 is rotatably connected to the plate 67.

The telescopic arm 66 is expanded and contracted by using the hydraulic pressure generated by the hydraulic mechanism 35. From the state where the rotary snow removal device 9 is mounted on the track vehicle 4, the telescopic arm 66 is moved by hydraulic pressure as shown in FIG. When extended, the base end of the lower support arm 65 integral with the plate 67 is positioned below the front end, and the base 61 of the elevating link 53 is also moved downward with respect to the front end 62, and the rotary snow removal device 9. Descends in a direction approaching the rail 1. In winter, the snow removal work can be performed by operating the rotary snow removal device 9 at this position. On the other hand, as shown in FIG. 7, when the telescopic arm 66 is contracted by hydraulic pressure, the base end of the lower support arm 65 is positioned above the tip, and the base 61 of the elevating link 53 is relative to the tip 62. The rotary snow removal device 9 moves upward and moves away from the rail 1. Therefore, the rotary snow removal device 9 can be stored on one end side of the track vehicle 4, and the track vehicle 4 including the rotary snow removal device 9 can be forwarded onto the rail 1. The chute 54 including the flap 57 is rotatably attached to the upper part of the apparatus main body 1. The chute 54 stands up during the snow removal operation shown in FIG. 6, and the chute 54 falls sideways during the forwarding shown in FIG. It becomes.

  Next, the detailed configuration of the rotary snow removal device connecting portion 8 will be described. Reference numeral 71 denotes left and right brackets that enable the lifting link 53 to be attached to and detached from the track vehicle 4. The bracket 71 is attached and fixed using a plurality of bolts 73 to the rotary snow removal device connecting portion 8 with the connecting device 72 (see FIG. 3) removed. Reference numeral 74 denotes a hydraulic coupler for connecting a hydraulic hose 58 between the track vehicle 4 and the rotary snow removal device 9.

  9 and 10, reference numeral 76 denotes a wheeled carriage for mounting the rotary snow removal device 9 on the railcar 4 when the rotary snow removal device 9 is attached to or removed from the track vehicle 4. The carriage 76 includes a frame 77 that allows the rotary snow removal device 9 to be placed in the same upright state as during snow removal work, a first wheel 78 that contacts the rail 1, and a second wheel 79 that contacts the ground G other than the rail 1. And is configured. The first wheel 78 and the second wheel 79 are both rotatable, and are respectively arranged on the front, rear, left and right of the bottom of the frame body 77. In particular, the first wheel 78 has a rotary snow removal device on the rail 1 on the frame 77. 9 is a wheel for moving the vehicle. On the other hand, the lower end of the second wheel 79 is positioned below the lower end of the first wheel 78 so that the second wheel 79 can be grounded with the first wheel 78 floating from the ground G. Therefore, using this second wheel 79, the carriage 76 on which the rotary snow removal device 9 is placed can be transferred to a place other than the rail 1.

  The rotary snow removal device 9 includes a rotatable wheel 80 at the bottom of the device body 51. The wheel 80 is made of resin and has a structure that can slide in the direction of the gauge L that is the width between the rails 1 with respect to the apparatus main body 51. During the snow removal work, if the distance between the lower part of the rotary snow removal device 9 and the rail 1 is less than the predetermined size, the rotary snow removal device 9 may be damaged, and the ground electrical equipment and railroad crossings may be hindered. 80 serves to keep the interval constant. The wheel 80 can be slid in the direction of the gap L because the rotary snow removal device 9 is mounted in front of the track vehicle 4 when passing over the curved rail 1 or crossing the point during the snow removal work. Therefore, the track vehicle 4 and the rail 1 are in different directions to prevent the wheels 80 from derailing. Further, the reason why the wheels 80 are made of resin is to prevent a track short-circuit accident and to prevent an abnormal operation of the crossing.

On the rotary snow removal device 9 side, an inverted L-shaped claw 81 protrudes and is integrally provided at the tip 62 of the elevating link 53. Opposing this, the bracket 71 on the track vehicle 4 side is integrally provided with a claw receiving portion 82 that can be engaged with the claw 81 and can be detached from the claw 81. The claw receiving portion 82 is configured as a hook-like hook having an open top, and when the rotary snow removal device 9 is placed on the carriage 76, the elevating link 53 is operated to lower the tip end portion 62. The claw 81 enters from the upper part of 82, the claw 81 and the claw receiving portion 82 are engaged, and the rotary snow removal device 9 is mounted on the track vehicle 4. On the contrary, when the elevating link 53 is operated to raise the tip 62, the claw 81 comes out from the upper portion of the claw receiving portion 82, the engagement between the claw 81 and the claw receiving portion 82 is released, and the track vehicle 4, the rotary snow removal device 9 is removed.

  The procedure of attaching / detaching the rotary snow removal device 9 to / from the railway vehicle 4 from the above configuration will be described. First, as a transition work from summer to winter, the procedure for mounting the rotary snow removal device 9 will be described. The connection device 72 is previously removed from the rotary snow removal device connection portion 8 on the track vehicle 4 side, and a bolt 73 is used instead. The left and right brackets 71 are attached. Further, a snow removal operation panel is connected to the inside of the cab 6. Then, with the first wheel 79 placed on the rail 1, the carriage 76 on which the rotary snow removal device 9 is mounted is brought closer to the rotary snow removal device connecting portion 8 side of the railway vehicle 4, and the railway vehicle 4, the rotary snow removal device 9, The hydraulic hoses 58 are connected to all eight locations of the hydraulic coupler 74 so that the hydraulic fluid flows between them. FIG. 11 shows a state in which the hydraulic hose 58 from the rotary snow removal device 9 is connected to the hydraulic coupler 74.

  Thereafter, the engine start key is operated inside the cab 6 to start the main diesel engine 12, and the position of the motor clutch switch is switched from “OFF” to “ON”. The clutch 22 is mechanically disconnected from the output shaft 18 of the shift transmission 13. Here, when the PTO switch is switched from OFF to ON, the clutch 32 is connected, power is transmitted from the main diesel engine 12 to the hydraulic pump 31, and the hydraulic pump 31 is activated. Further, when the PTO switch is turned on and the snow removal switch is switched from off to on, the hydraulic pressure from the hydraulic pump 31 acts not only on the turntable 38 but also on the hydraulic motor 33, and the hydraulic mechanism using the main diesel engine 12 as power. Operation of each part of the rotary snow removal device 9 by 35 becomes possible.

  In this state, the claw 81 on the rotary snow removal device 9 side is hung on the claw receiving portion 82 on the track vehicle 4 side while lifting the tip 62 by the operation of the elevating link 53. Specifically, as shown in FIG. 12, in a state where the “down” button of the snow removal installation operation panel (not shown) is continuously pressed, the tip 62 of the lift link 53 is lifted by the hydraulic pressure from the hydraulic pump 31. Then, the carriage 76 is pushed to the track vehicle 4 side, and the positions are adjusted so that the claw 81 approaches the claw receiving portion 82 on both the left and right sides of the rotary snow removal device connecting portion 8. Next, when the “down” button is released, the tip end portion 62 is lowered by its own weight, and the claw 81 enters from the upper portion of the claw receiving portion 82 and engages with the claw receiving portion 82. In this case, as shown in FIG. 13, it can be visually confirmed from the upper part of the claw receiving portion 82 that the claw 81 is completely related to the claw receiving portion 82.

  Thus, when it is confirmed that the left and right claws 81 are completely engaged with the claw receiving portion 82, a bolt (not shown) is tightened to attach and fix the distal end portion 62 of the lifting link 53 to the rotary snow removal device connecting portion 8, and the snow removal device. The drive propulsion shaft 56 is connected to the output shaft 36 on the track vehicle 4 side. Thereafter, when the “up” button on the snow removal mounting operation panel is continuously pressed, the lifting link 53 is operated by the hydraulic pressure from the hydraulic pump 31, and the rotary snow removal device 9 is lifted from the carriage 76 at the end of the track vehicle 4. As a result, the carriage 76 can be pulled out and the operation can be completed.

  Next, a procedure for removing the rotary snow removal device 9 will be described as a transition work from winter to summer. Here, first, the main diesel engine 12 is started, the position of the motor clutch switch is switched from “OFF” to “ON”, the PTO switch is switched from OFF to ON, and the snow removal switch is switched from OFF to ON. Manipulate. Thereby, each part of the rotary snow removal device 9 can be operated by the hydraulic mechanism 35 powered by the main diesel engine 12.

Thereafter, the carriage 76 is moved below the rotary snow removal device 9, and the “down” button on the snow removal installation operation panel is continuously pressed to lower the rotary snow removal device 9 at the end of the track vehicle 4. Make sure to set it on top. Then, the snow removal device drive propulsion shaft 56 is removed from the output shaft 36 on the track vehicle 4 side, and the bolts are removed so that the fixing of the distal end portion 62 of the lift link 53 and the rotary snow removal device connecting portion 8 is released.

  In this state, the claw 81 on the rotary snow removal device 9 side is removed from the claw receiving portion 82 on the track vehicle 4 side while lifting the tip 62 by the operation of the elevating link 53. Specifically, from the state where the claw 81 shown in FIG. 13 is set, the “down” button of the snow removal installation operation panel is continuously pressed to lift the tip 62 of the lifting link 53. Then, the nail | claw 81 comes out from the upper part of the nail | claw receiving part 82, and both engagement is cancelled | released. Here, when the carriage 76 on the rail 1 is moved in a direction away from the track vehicle 4 immediately, the claw 81 can be removed from the claw receiving portion 82. When the “down” button is released as described above, the distal end portion 62 is lowered by its own weight, so that the elevating link 53 waits for the lowering of the distal end portion 62 to stop while taking care not to interfere with other members.

  When the movement of the tip 62 is completely stopped, the hydraulic hoses 58 are removed from all eight locations of the hydraulic coupler 74, the PTO switch and the snow removal switch are switched from on to off, and then the bolt 73 is loosened to connect the rotary snow removal device connecting portion. The left and right brackets 71 are removed from 8, and a connecting device 72 is attached instead. The rotary snow removal device 9 alone mounted on the carriage 76 moves on the rail 1 using the first wheels 79 and further on the ground G using the second wheels 80 toward the storage place, The work can be finished.

  Then, during normal forwarding without using the rotary snow removal device 9 or the snow plow 11, the main diesel engine 12 is started without starting the engine generator 23. Next, in order to make it possible for the main diesel engine 12 to run the railway snowplow, the motor clutch switch is in the “off” position, and the clutch 22 causes the rotation shaft of the main diesel engine 12 and the power shift transmission 13 to After confirming that the output shaft 18 is connected, when another reverse operation switch is appropriately operated, the output shaft 18 is rotated in the forward or reverse direction by the power from the main diesel engine 12, and the rail A railroad snowplow moves forward or backward on 1. In the engine traveling by the main diesel engine 12, the track vehicle 4 alone or the track vehicle 4 towing the snow removal device can be traveled at a higher speed than the motor traveling by the auxiliary electric motor 21 described later. Furthermore, if the “up” button of the snow removal mounting operation panel is pushed in a state where each part of the rotary snow removal device 9 can be operated by the hydraulic mechanism 35 described above, the rotary snow removal device 9 is moved away from the rail 1. Can be held up.

  On the other hand, at the time of snow removal work using the rotary snow removal device 9 and the snow plow 11, after starting the main diesel engine 12 as usual, the engine generator 23 is started, and the motor travel key is changed from “invalid” to “valid”. When switched to the "" side, the power supply from the engine generator 23 to the auxiliary electric motor 21 is permitted. Here, when the position of the motor clutch switch is switched from “OFF” to “ON”, the clutch 22 connects the rotating shaft of the auxiliary electric motor 21 and the output shaft 18 of the power shift transmission 13, and the auxiliary electric motor 21. It becomes possible to run the motor. When another direction switch is appropriately operated from this state, the output shaft 18 rotates in the forward direction or the reverse direction by the power from the auxiliary electric motor 21, and the railway snowplow moves forward or backward on the rail 1. The output of the auxiliary electric motor 21 is smaller than the output of the main diesel engine 12, and the track vehicle 4 alone or the track vehicle 4 towing the snow removal device can be driven at a constant fine speed.

  When the motor clutch switch is switched to the “ON” position, the rotation shaft of the main diesel engine 12 and the output shaft 18 of the power shift transmission 13 are mechanically disconnected by the clutch 22. When the PTO switch is switched from OFF to ON and the PTO switch is switched ON and the snow removal switch is switched from OFF to ON, the rotary snow removal by the hydraulic mechanism 35 powered by the main diesel engine 12 as described above. The device 9 can be activated.

  At the time of snow removal work, each part of the rotary snow removal device 9 is hydraulically operated by manual operation using a snow removal operation panel (not shown) connected to the inside of the cab 6. Accordingly, when the rotation switch provided on the snow removal operation panel is switched from OFF to ON, the cutter 55 of the rotary snow removal device 9 can be rotated at a rotation speed corresponding to the rotation speed of the main diesel engine 12.

  Thus, during the snow removal work, the auxiliary electric motor 21 causes the track vehicle 4 to travel at a constant fine speed, and the power of the main diesel engine 12 drives the cutter 55 of the rotary snow removal device 9 with a high torque via the hydraulic mechanism 35. The rotational speed of the cutter 55 can be controlled by varying the rotational speed of the main diesel engine 12.

  Furthermore, the motor traveling by the auxiliary electric motor 21 can be used not only during snow removal work but also in an emergency when the main diesel engine 12 fails. Also in this case, the failed track vehicle 4 alone or the track vehicle 4 towing the snow removal device can be driven at a constant fine speed.

  As described above, the power in the normal engine running is transmitted to the traveling diesel engine 12 → the power shift transmission 13 → the traveling propulsion shafts 14 and 16 → the final reduction gears 15 and 17 → the axles 2 and 3 in an emergency. The power in the motor travel is transmitted to the auxiliary electric motor 21 → the power shift transmission 13 → the propulsion propulsion shafts 14 and 16 → the final reduction gears 15 and 17 → the axles 2 and 3. Further, during the snow removal work, in addition to the power in the motor running described above, the power from the main diesel engine 12 is used, and the main diesel engine 12 → power shift transmission 13 → hydraulic mechanism 35 → snow removal device drive propulsion shaft 56 → rotary. It is transmitted to the snow removal device 9.

  As described above, in the above-described embodiment, the rail vehicle 4 as a rail vehicle having a structure capable of traveling on the rail 1 serving as the track, and the rotary snow removing device 9 as a snow removing device provided at an end of the rail vehicle 4 are provided. The rotary snow removal device 9 includes an elevating link 53 and is connected to the end of the track vehicle 4 via the elevating link 53 so as to be elevable. And here, a carriage 76 as a mounting table on which the rotary snow removal device 9 can be placed, and the tip movable portion of the elevating link 53 in the state where the rotary snow removal device 9 is placed on the carriage 76 and placed on the carriage 76. The tip portion 62 is moved up and down to provide a claw 81 of the tip portion 62 and a claw receiving portion 82 as a receiving portion that can be engaged and disengaged.

  That is, in a state where the rotary snow removal device 9 is mounted on the end of the track vehicle 4 via the lifting link 53 without placing the rotary snow removal device 9 on the carriage 76, the rotary snow removal is performed by operating the lifting link 53. The snow removal work can be performed by lowering the device 9 to the working position, or the rotary vehicle 4 can be moved forward by moving the rotary snow removal device 9 to the storage position. On the other hand, when the rotary snow removal device 9 is placed on the carriage 76 so as to support the weight of the rotary snow removal device 9, the claw support provided on the track vehicle 4 is utilized by using the tip movable portion of the lifting link moving up and down. The claw 81 integral with the tip 62 of the elevating link 53 can be engaged with and disengaged from the portion 82. Accordingly, the rotary snow removal device 9 can be easily attached to and detached from the track vehicle 4 simply by using a simple carriage 76 that can mount the rotary snow removal device 9 instead of a large work vehicle such as a crane. Can do.

  Moreover, in this embodiment, the nail | claw receiving part 82 is comprised with the hook-shaped hook which opened the upper part. In other words, by inserting / removing the claw 81 provided at the distal end portion 62 of the lifting / lowering link 53 to / from the upper portion of the hook opened as the claw receiving portion 82, it is possible to reliably confirm that the claw 81 of the distal end portion 62 is engaged with and disengaged from the hook. .

  Furthermore, in the present embodiment, the mounting table is configured by a wheeled carriage 76, and this wheel includes a first wheel 78 that contacts the rail 1 and a second wheel 79 that contacts the ground G separately from the first wheel 78. Composed.

  In this case, the rotary snow removal device 9 alone removed from the track vehicle 4 is placed on the carriage 76 and moved on the rail 1 by the first wheel 78, and on the ground G other than the rail 1 by another second wheel 79. Can also be moved. Therefore, the rotary snow removal device 9 can be easily transported between the end of the track vehicle 4 and an arbitrary storage location using the wheeled carriage 76.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, the present invention can be applied to various snow removal devices other than the rotary snow removal device 9.

1 rail (track)
4 Rail vehicles (railroad vehicles)
9 Rotary snow removal equipment (snow removal equipment)
53 Elevating link 62 Tip (tip tip movable part)
76 dolly (mounting table)
78 1st wheel
79 Second wheel
82 Claw receiving part (receiving part)

Claims (2)

A detachable structure between a railway vehicle traveling on a track and a snow removal device provided at an end of the railway vehicle,
The snow removal device includes a lifting link including a tip movable part, and is connected to the end of the railway vehicle via the lifting link so as to be lifted and lowered .
Provided in front Symbol railway vehicle, wherein in a state where the snow removal device and mounting the snow removing device can be placed table, by vertical movement of the end effector of the lifting links, wherein the end effector disengageably An attachment / detachment structure between a railway vehicle and a snow removal device, characterized by comprising a possible receiving portion.   2. The attachment / detachment structure between a railway vehicle and a snow removal device according to claim 1, wherein the receiving portion is formed of a hook-like hook having an upper portion opened.