JP6587860B2 - Trolley - Google Patents

Description

  The present invention relates to a carriage provided with a rail straightening device.

  The rail joints of railroads are subject to depression when they are subjected to the heavy load of the railcar as it passes through, causing problems such as noise and vibration and poor ride comfort due to this depression. Occurs. Therefore, Patent Literature 1 proposes a rail straightening device that corrects a rail joint drop by holding the rail joint from both sides and then lifting the rail joint using a hydraulic cylinder.

No. 7-52162

  By the way, the conventional rail correction apparatus which raises the joint of a rail with a hydraulic cylinder as disclosed by patent document 1 has a weight of about 600 kg. Such a rail correction device is transported manually from a railroad crossing to a rail joint after being transported by a truck to a railroad crossing, and it takes a lot of labor for the transportation by this human power.

  This invention is made | formed in view of the said matter, Comprising: The objective is to provide the trolley | bogie which can transport a rail correction apparatus to the joint location of a rail without a effort.

  In order to solve the above-described problems, a cart according to the present invention is erected up and down on a cargo bed, a vehicle body provided with wheels mounted on railroad rails, and a drive mechanism for rotating the wheels, and the cargo bed. And a pair of claws for sandwiching a rail joint between a support column rotatable about an axis, an arm extending laterally from the support column and tilting up and down with a base end connected to the support column as a fulcrum And a rail straightening device suspended from the arm. The wheel rotates on the rail so that the wheel can travel to the joint of the rail. Or by tilting the arm up and down to place the rail straightening device on the cargo bed, or to project the rail straightening device to the outside of the cargo bed, so that the pair of claws are located near the rail joint Positioned in It is possible.

  Preferably, the rail straightening device is provided with a pair of levers extending in the vertical direction, the pair of levers can be tilted so that lower ends thereof approach and separate from each other, and the pair of claw portions includes the pair of claws. Provided at the lower end of the lever, with the pair of claws positioned in the vicinity of the rail joint, the pair of levers can be tilted so that the rail joint is sandwiched between the pair of claws. is there.

  Preferably, the pair of claw portions are detachably provided at lower ends of the pair of levers.

  Preferably, the rail correction device is provided with a support member capable of moving up and down by supporting the pair of levers so that the pair of levers can be tilted, and the support members in a state where the pair of claws sandwich a rail joint. It is possible to lift the rail joint by moving upward.

  Preferably, the carriage according to the present invention is provided in the rail correction device, the first hydraulic cylinder connected to the arm and the column and performing an expansion / contraction operation for tilting the arm, and moves the support member up and down. A second hydraulic cylinder that performs an expansion / contraction operation, and a third hydraulic cylinder that is provided in the rail straightening device and performs an expansion / contraction operation that tilts the pair of levers.

  Preferably, the bogie of the present invention switches the electromagnetic valve for controlling the amount of pressure oil supplied to the first, second, and third hydraulic cylinders to switch the first, second from the hydraulic source. And an operation switch capable of remotely controlling the amount of pressure oil supplied to the third hydraulic cylinder.

  Preferably, the carriage of the present invention further includes a suspension shaft extending in the vertical direction and having an upper end coupled to the arm, and the rail straightening device further includes a U-shaped frame and a coupling plate. Provided, the frame includes a main member extending in a lateral direction and a pair of legs extending downward from both ends of the main member, and a central portion of the main member is coupled to a lower end of the suspension shaft, The second hydraulic cylinder is provided for each of the pair of legs, and each of the second hydraulic cylinders includes a cylinder tube to which pressure oil is supplied from the hydraulic source, and an inside of the cylinder tube. A piston rod that reciprocates at a hydraulic pressure, and the cylinder tube of each second hydraulic cylinder is fixed to a lower portion of the leg, and the piston rod of each second hydraulic cylinder is The connecting plate extends laterally from an upper position of one of the second hydraulic cylinders to an upper position of the other second hydraulic cylinder, and one end of the connecting plate is The second connecting plate is connected to the piston rod of one of the second hydraulic cylinders, and the other end of the connecting plate is connected to the piston rod of the second second hydraulic cylinder so that the connecting plate is connected to the second hydraulic cylinder. The support member extends in the vertical direction, and the upper part of the support member is connected to the central part of the connection plate, so that the vertical movement of the connection plate An intermediate portion of the pair of levers is rotatably supported at the lower portion of the support member, and the third hydraulic cylinder is a cylinder tube to which pressure oil is supplied from the hydraulic source And the cylinder A piston rod extending from the tube and reciprocatingly driven by the hydraulic pressure in the cylinder tube, and the cylinder tube of the third hydraulic cylinder is connected to the upper end of one of the levers, and the piston rod of the third hydraulic cylinder Is coupled to the upper end of the other lever, and the pair of claw portions is provided at the lower end of the pair of levers.

  Preferably, the suspension shaft can tilt back and forth with an upper end connected to the arm as a fulcrum, and can rotate around the shaft.

  Preferably, the central portion of the main member is connected to the lower end of the suspension shaft via a pin that passes through the central portion of the main member and the lower end of the suspension shaft, and the frame includes the pin. It can be tilted as an axis.

  Preferably, each of the pair of leg portions is provided with a pair of protrusions, and each of the pair of protrusions protrudes downward from a lower end of the leg portion, with an interval corresponding to the width of the rail. Relative.

  Preferably, the cart according to the present invention further includes a cylindrical holder fixed to the loading platform, and a lower portion of the support column is inserted into the holder, and extends above the holder. The base end of the arm is rotatably connected, and a thrust bearing that receives the vertical load of the support column between the inner surface of the holder and the outer surface of the lower portion of the support column, and smooth rotation of the support column And a radial bearing for.

  Preferably, the cart of the present invention further includes means for regulating rotation of the support column in a state where the rail correction device is placed on the cargo bed.

  Preferably, the vehicle main body is provided with a tire for traveling on the ground or a road, an engine for driving the tire, and an elevating unit for elevating the wheel, and the wheel is lowered by the elevating unit. In this case, it is possible to travel on railroad rails with the wheels, and when the wheels are lifted by the lifting means, the tires can travel on the ground or on the road.

It is a top view which shows the trolley | bogie which concerns on embodiment of this invention. It is a side view which shows the trolley | bogie which concerns on embodiment of this invention. It is sectional drawing which expands and shows a part of support | pillar. FIG. 4A is an enlarged view of the tip of the arm, FIG. 4A is a side view of the tip of the arm, and FIG. 3B is a cross-sectional view taken along line AA of FIG. It is an AA line sectional view of Drawing 3 (a). It is a side view which expands and shows a rail correction apparatus. FIG. 4B is a cross-sectional view taken along the line CC of FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing a carriage 1 according to an embodiment of the present invention. FIG. 2 is a side view of the carriage 1 according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, the cart 1 of this embodiment includes a vehicle body 2, a support column 3, an arm 4, a suspension shaft 5, and a rail correction device 6.

  The vehicle body 2 includes a loading platform 7, wheels 8, and a drive mechanism that rotates the wheels 8. The wheel 8 is placed on the rail R of the railway. The drive mechanism includes a generator 10, a motor 11, a chain 12, and the like. This drive mechanism rotates the wheel 8 by rotating the drive shaft of the motor 11 with electric power supplied from the generator 10 and transmitting the rotational force of the drive shaft to the wheel 8 via the chain 12. The generator 10 and the motor 11 are placed on the loading platform 7. A seat 13 on which a worker sits is provided on the motor 11.

  A hydraulic pressure source 14 (FIG. 2) that generates pressure oil is provided on the loading platform 7. The pressure oil is supplied to a first hydraulic cylinder 15, second hydraulic cylinders 16 </ b> A and 16 </ b> B, and a third hydraulic cylinder 17, which will be described later, and the hydraulic valve is switched by switching an electromagnetic valve provided for the hydraulic source 14. The amount of pressure oil supplied to the cylinders 15, 16A, 16B, 17 is controlled.

  The drive of the motor 11 and the amount of pressure oil supplied to the hydraulic cylinders 15, 16A, 16B, 17 are controlled by the control unit. The control unit includes a main body 98 and an operation switch (not shown) that is detachable from the main body 98. The main body 98 is placed on the cargo bed 7 and is connected to the motor 11 and the electromagnetic valve. The main body 98 controls the drive of the motor 11 by the operation of an operator sitting on the seat 13 or switches the electromagnetic valve to supply the hydraulic oil to the hydraulic cylinders 15, 16 A, 16 B, and 17. Can be controlled. The operation switch is connected to the electromagnetic valve via the main body 98 by a wired connection or a wireless connection with the main body 98, and is operated by an operator who gets off the loading platform 7 in his / her hand. . By operating the operation switch, the amount of pressure oil supplied from the hydraulic source 14 to the hydraulic cylinders 15, 16A, 16B, and 17 can be remotely controlled by switching the electromagnetic valve.

  FIG. 3 is an enlarged cross-sectional view showing a part of the column 3. The column 3 is erected up and down at the front end of the loading platform 7. The support column 3 is composed of a square pipe 18 in the upper part and a cylindrical shaft 19 in the lower part, and the square pipe 18 and the shaft 19 are integrally welded via a metal plate 20. A cylindrical holder 21 is fixed to the front end of the loading platform 7 where the support column 3 is installed. The shaft 19 is inserted into the holder 21, and the square pipe 18 and the metal plate 20 are located above the holder 21. Extended.

  A thrust bearing 22 and a radial bearing 23 are provided between the inner surface of the holder 21 and the outer surface of the shaft 19.

  The thrust bearing 22 is provided at a lower position between the holder 21 and the shaft 19. The thrust bearing 22 includes an upper ring 24, a lower ring 25, and a ball 26. The upper ring 24 is joined to the lower surface of a step 19 a extending around the outer periphery of the shaft 19. The lower ring 25 is joined to the upper surface of the annular protrusion 21 a extending around the inner periphery of the holder 21. The upper ring 24 and the lower ring 25 are opposed to each other in the vertical direction, and the ball 26 is rotatably disposed between them. The thrust bearing 22 receives a vertical load of the support column 3, and the support column 3 is supported by the thrust bearing 22 so as to be rotatable about an axis.

  The radial bearing 23 is provided at the upper end position and the lower end position between the holder 21 and the shaft 19. The radial bearing 23 includes an inner ring 27, an outer ring 28, and a ball 29. The inner ring 27 is joined to the outer peripheral surface of the shaft 19. The outer ring 28 is joined to the inner peripheral surface of the holder 21, and an inner ring 27 is provided inside the outer ring 28. The ball 29 is rotatably disposed between the outer ring 28 and the inner ring 27. By providing the radial bearing 23 described above, the support column 3 can be smoothly rotated.

  As shown in FIG. 1, the arm 4 extends laterally from the square pipe 18 of the support column 3, and the base end 4 a of the arm 4 is connected to the square pipe 18 so as to be vertically rotatable.

  The first hydraulic cylinder 15 includes a cylinder tube 30 and a piston rod 31. The cylinder tube 30 extends laterally from the upper end of the square pipe 18, and the base end 30 a of the cylinder tube 30 is connected to the square pipe 18 so as to be vertically rotatable. The cylinder tube 30 is supplied with pressure oil from the hydraulic source 14 via the hose 65. The hose 65 is attached to the column 3 and has one end connected to the hydraulic source 14 and the other end connected to the cylinder tube 30. The piston rod 31 extends laterally from the cylinder tube 30, and the tip 31 a of the piston rod 31 is connected to the arm 4. The piston rod 31 reciprocates with the hydraulic pressure in the cylinder tube 30. The reciprocating motion causes the first hydraulic cylinder 15 to expand and contract, and the first hydraulic cylinder 15 moves up and down with the base end 30a of the cylinder tube 30 as a fulcrum. By tilting, the arm 4 tilts up and down with the base end 4a supported by the square pipe 18 as a fulcrum.

  4 is an enlarged view of the tip of the arm 4, FIG. 4A is a side view showing the tip of the arm 4, and FIG. 4B is a plan view showing the tip of the arm 4. It is. FIG. 5 is a cross-sectional view taken along line AA in FIG. A cylindrical body 32 that opens up and down is provided at the tip of the arm 4. The cylindrical body 32 has a rectangular cross section, and has side walls 32 a and 32 b facing the width direction of the arm 4. The suspension shaft 5 extends in the vertical direction, and the upper end of the suspension shaft 5 is passed through the inside of the cylindrical body 32. Between the upper end of the suspension shaft 5 and the side walls 32a and 32b of the cylindrical body 32, a bearing holder 33, a radial bearing 34, and pins 35A and 35B are provided (in FIG. 4A, in the cylindrical body 32). (The bearing holder 33, the radial bearing 34, the pins 35A and 35B, the upper end of the suspension shaft 5, etc.) should be indicated by broken lines, but are difficult to see, and are indicated by solid lines).

  The bearing holder 33 has a cylindrical shape with a circular cross section that opens up and down, and the suspension shaft 5 is passed inside the bearing holder 33. An annular groove 36 is formed in the upper half of the bearing holder 33. The annular groove 36 extends around the inner periphery of the bearing holder 33. As shown in FIG. 5, a pair of through holes 37 </ b> A and 37 </ b> B are formed in the lower half of the bearing holder 33. These through holes 37A and 37B penetrate the bearing holder 33 in the horizontal direction.

  The radial bearing 34 is disposed in the annular groove 36 of the bearing holder 33 and includes an inner ring 38, an outer ring 39, and a ball 40. The inner ring 38 is joined to the outer peripheral surface of the suspension shaft 5. The outer ring 39 is joined to the inner surface of the annular groove 36, and an inner ring 38 is provided inside the outer ring 39. The ball 40 is rotatably disposed between the outer ring 39 and the inner ring 38.

  Each of the pins 35A and 35B has a small diameter portion 35a and a large diameter portion 35b. The small diameter portion 35a of the pin 35A is inserted into the through hole 37A of the bearing holder 33. The large diameter portion 35b of the pin 35A is inserted into a metal bush 66A supported by the side wall 32a of the arm 4. The small diameter portion 35a of the pin 35B is inserted into the through hole 37B of the bearing holder 33. The large diameter portion 35b of the pin 35B is inserted into a metal bush 66B supported by the side wall 32b of the arm 4.

  By providing the radial bearing 34, the bearing holder 33, and the pin 35, the upper end of the suspension shaft 5 is coupled to the side walls 32 a and 32 b of the arm 4. The suspension shaft 5 can tilt back and forth with its upper end as a fulcrum, and can rotate around the shaft. Specifically, the suspension shaft 5, the radial bearing 34, and the bearing holder 33 can tilt forward and backward with the pins 35 </ b> A and 35 </ b> B as fulcrums, and the suspension shaft 5 and the inner ring 38 are connected to the suspension shaft 5. It can rotate around an axis.

  FIG. 6 is a side view showing the rail straightening device 6. FIG. 7 is a front view showing a part of the rail straightening device 6 and shows a state in which a support member 42 described later is viewed from the DD position shown in FIG. 6 in the E direction.

  The rail straightening device 6 is suspended by the arm 4 via the suspension shaft 5. The rail straightening device 6 includes a frame 40, a pair of second hydraulic cylinders 16A and 16B, a connecting plate 41, a support member 42, a pair of levers 43A and 43B (FIG. 7), and a third hydraulic cylinder 17. And a pair of nail | claw part 44A, 44B (FIG. 7) is provided.

  The frame 40 has a U-shape, and includes a main member 45 extending in the lateral direction and a pair of leg portions 46A and 46B extending downward from both ends of the main member 45. The central portion of the main member 45 is connected to the lower end of the suspension shaft 5 via a pin 48 penetrating the main member 45 and the suspension shaft 5. Specifically, a U-shaped flange 47 is attached to the central portion of the main member 45 with a bolt or the like so as to protrude upward, and the suspension shaft 5 is interposed between the side walls 47 a and 47 b of the flange 47. The lower end of is inserted. And the pin 48 is passed through the through hole of the side walls 47a and 47b and the through hole of the suspension shaft 5, and the nut is fastened to the range of the pin 48 extending to the outside of the side walls 47a and 47b. From the above configuration, the central portion of the main member 45 is connected to the lower end of the suspension shaft 5 via the pin 48, and the frame 40 can be tilted back and forth about the pin 48.

  The second hydraulic cylinders 16A and 16B are provided on the leg portions 46A and 46B, respectively. Each of the second hydraulic cylinders 16 </ b> A and 16 </ b> B includes a cylinder tube 49 and a piston rod 50. The cylinder tubes 49 of the second hydraulic cylinders 16A and 16B are fixed to the lower portions of the leg portions 46 with bolts or the like, and pressure oil from the hydraulic source 14 is supplied via the hose 51 (FIG. 1). As shown in FIG. 1, the hose 51 includes a main body 51a attached to the support column 3 and the arm 4, and bifurcated branch parts 51b and 51c attached to the frame 40. Connected to the hydraulic pressure source 14, one end of the branch portions 51b and 51c is connected to the other end of the main body 51a, and the other end of the branch portions 51b and 51c is connected to the cylinder tube 49 of the second hydraulic cylinders 16A and 16B, respectively. . The piston rods 50 of the second hydraulic cylinders 16 </ b> A and 16 </ b> B extend upward from the cylinder tube 49, and reciprocate with the hydraulic pressure in the cylinder tube 49.

  A pair of protrusions 60 and 60 for sandwiching the rail R are provided at the lower ends of the leg portions 46A and 46B, respectively. These protrusions 60 and 60 protrude downward from the lower ends of the leg portions 46A and 46B, and are opposed to each other with an interval corresponding to the width of the rail R (the protrusions 60 and 60 are in the width direction of the leg portion 46). 1 and FIG. 6 (the depth direction in FIG. 1 and FIG. 6) with a gap therebetween, and only one of the protrusions 60 and 60 is shown in FIG. 1 and FIG.

  The connecting plate 41 extends in the lateral direction from an upper position of the second hydraulic cylinder 16A to an upper position of the second hydraulic cylinder 16B. One end of the connecting plate 41 is connected to the piston rod 50 of the second hydraulic cylinder 16A. The other end of the connecting plate 41 is connected to the piston rod 50 of the second hydraulic cylinder 16B. The second hydraulic cylinders 16A and 16B expand and contract by the reciprocating movement of the piston rod 50, and the connecting plate 41 moves up and down by the expansion and contraction of the second hydraulic cylinders 16A and 16B.

  The support member 42 extends in the vertical direction, and an upper portion thereof is coupled to the central portion of the coupling plate 41. Specifically, the support member 42 includes a pair of opposing plates 61A and 61B extending in the vertical direction. These opposing plates 61A and 61B are opposed to the longitudinal direction of the connecting plate 41 (the left-right direction in FIG. 6), and the opposing plates 61A and 61B are formed with recesses 62 (FIG. 7). The recess 62 extends downward from the upper end of the counter plate 61 and is formed at the center of the width of the counter plate 61. The central portion of the connecting plate 41 is passed through the recess 62 of the opposing plates 61A and 61B, and the connecting plate 41 is prevented from coming out above the recess 62 by the holding plate 63, so The upper portions of the plates 61A and 61B are connected to the central portion of the connecting plate 41. The restraining plate 63 is bridged between the upper end of the opposing plate 61A and the upper end of the opposing plate 61B. As shown in FIG. 6, the holding plate 63 has one end fitted into the groove 64A of the opposing plate 61A and the other end fitted into the groove 64B of the opposing plate 61B, and is fastened to the opposing plates 61A and 61B with bolts. . The holding plate 63 can be removed from the opposing plates 61A and 61B by releasing the fastening of the bolts. When assembling the rail straightening device 6, the connecting plate 41 suspended by a crane is inserted into the recess 62 from above the recess 62 with the suppression plate 63 removed, and then one end and the other end of the suppression plate 63. Are fitted in the grooves 64A and 64B, respectively, and the holding plate 63 is fastened with bolts. According to this procedure, the operation of moving the connecting plate 41 in the lateral direction is not required, and the support member 42 and the connecting plate 41 can be connected, so that the rail correction device 6 can be easily assembled.

  The levers 43A and 43B and the third hydraulic cylinder 17 are disposed between the opposed plates 61A and 61B at a position below the connecting plate 41 (in FIG. 7, disposed between the opposed plates 61A and 61B). The levers 43A and 43B and the third hydraulic cylinder 17 should be indicated by broken lines, but they are difficult to see, and are indicated by solid lines). Each of the levers 43A and 43B extends in the vertical direction, and the lever 43A and the lever 43B are opposed to the width direction of the counter plate 61 (the horizontal direction in FIG. 7). These levers 43A and 43B are pivotally supported at the central portion thereof by the pins 70A and 70B so as to be rotatable on the lower portion of the support member 42 (lower portions of the opposing plates 61A and 61B). The pin 70A extends between the opposing plates 61A and 61B and supports the lever 43A through. The pin 70B extends between the opposing plates 61A and 61B and supports the lever 43B in a penetrating manner.

  The third hydraulic cylinder 17 includes a cylinder tube 80 and a piston rod 81 extending in the lateral direction (the width direction of the opposing plates 61A and 61B). The cylinder tube 80 is connected to the upper end of the lever 43A, and pressure oil from the hydraulic source 14 is supplied through a hose (not shown). The hose is attached to the column 3, the arm 4, and the frame 40, and one end is connected to the hydraulic source 14 and the other end is connected to the cylinder tube 80. The piston rod 81 is connected to the upper end of the lever 43 </ b> B and reciprocates due to the hydraulic pressure in the cylinder tube 80. As the third hydraulic cylinder 17 expands and contracts by the reciprocating motion of the piston rod 81, the levers 43A and 43B tilt so that the lower ends approach and separate from each other with the center portion pivotally supported by the pins 70A and 70B as a fulcrum. . That is, when the third hydraulic cylinder 17 extends, the upper ends of the levers 43A and 43B are separated from each other, and the lower ends of the levers 43A and 43B approach each other. When the third hydraulic cylinder 17 is contracted, the upper ends of the levers 43A and 43B approach each other, and the lower ends of the levers 43A and 43B are separated from each other.

  The claw portions 44A and 44B are detachably provided at the lower ends of the levers 43A and 43B. Each of the claw portions 44 </ b> A and 44 </ b> B has an L shape, and includes a plate-like main body portion 85 and a protrusion 86 protruding from one end of the main body portion 85. Grooves 95 for inserting the body portions 85 of the claw portions 44A and 44B are formed on the inner side surfaces of the lower ends of the levers 43A and 43B. By inserting the main body 85 into the groove 95 and fastening the main body 85 to the levers 43A and 43B with bolts or the like, the claw portions 44A and 44B are attached to the lower ends of the levers 43A and 43B. Thus, in the state where the claw portions 44A and 44B are attached, the projection 86 of the claw portion 44A and the projection 86 of the claw portion 44B are in a state facing each other in the lateral direction (the width direction of the opposing plates 61A and 61B). When the levers 43A and 43B tilt so that the lower ends of the levers 43A and 43B approach each other, the projections 86 and 86 of the claw portion 44B sandwich the joint of the rail R (specifically, as shown in FIG. 7). In addition, the joint plates R1 and R2 are provided at the joint of the rail R, and the joint plates R1 and R2 can be sandwiched between the protrusions 86 and 86 by the tilting of the levers 43A and 43B). The claw portions 44A and 44B can be detached from the levers 43A and 43B by releasing the fastening of the bolt and extracting the main body portion 85 from the groove. The claw portions 44A and 44B are made of a steel material that can be toughened by quenching / tempering treatment. An example of such a steel material is carbon steel S45C.

  In the cart 1 having the above configuration, an operator sitting on the seat 13 operates the main body 98 of the control unit to control the driving of the motor 11, thereby rotating the wheels 8 to travel the cart 1. Can be made. Further, the amount of pressure oil supplied to the hydraulic cylinders 15, 16 </ b> A, 16 </ b> B, 17 can be controlled by operating the main body 98, and the hydraulic cylinders 15, 16 </ b> A, 16 </ b> B, 17 can be expanded and contracted. Further, the operator remotely controls the amount of pressure oil supplied to the hydraulic cylinders 15, 16A, 16B, 17 by operating the operation switch of the control unit, so that the hydraulic cylinders 15, 16A, 16B, 17 are controlled. Can be expanded and contracted.

  The arm 4 tilts up and down with the base end 4a as a fulcrum by the expansion and contraction of the first hydraulic cylinder 15 connected to the arm 4 and the support column 3. In addition, one end and the other end of the connecting plate 41 are connected to the piston rod 50 of the second hydraulic cylinders 16A and 16B, so that the connecting plate 41 moves up and down by the expansion and contraction of the second hydraulic cylinders 16A and 16B. Furthermore, since the upper part of the support member 42 is connected to the central portion of the connection plate 41, the support member 42 also moves up and down as the connection plate 41 moves up and down. Further, the levers 43A and 43B are tilted by the expansion and contraction of the third hydraulic cylinder 17, and the lower ends of the levers 43A and 43B approach and separate from each other, so that the projections 86 and 86 (FIG. 7) of the claw portions 44A and 44B also approach. And get away. Furthermore, when an operator applies force to the support column 3, the arm 4, the rail correction device 6, etc., the support column 3 is rotated to turn the arm 4, and the suspension shaft 5 is rotated around the axis. The suspension shaft 5 and the frame 40 can be tilted back and forth.

  Then, by turning the arm 4 by rotating the support column 3 and tilting the arm 4 up and down, the rail straightening device 6 is placed on the loading platform 7, or the rail straightening device 6 is projected to the outside of the loading platform 7. Thus, the claw portions 44A and 44B can be positioned in the vicinity of the joint of the rail R (in FIG. 1, the state where the rail correction device 6 is placed on the loading platform 7 is indicated by a two-dot chain line, and the rail correction device 6 is mounted on the loading platform 7). The state of protruding outside is indicated by a solid line). Further, by rotating the suspension shaft 5 and tilting the suspension shaft 5 and the frame 40 back and forth, the rail R is sandwiched between the protrusions 60 and 60 to fix the rail correction device 6 on the rail R. be able to. Furthermore, by controlling the expansion / contraction operation of the third hydraulic cylinder 17, the levers 43A and 43B can be tilted so that the claw portions 44A and 44B can pinch the joint of the rail R or release the pinching. Further, with the claw portions 44A and 44B sandwiching the rail R joint, the second hydraulic cylinders 16A and 16B are extended to raise the support member 42, thereby lifting the rail R joint and correcting the rail joint drop. can do.

  Moreover, in the cart 1 of this embodiment, as shown by a two-dot chain line in FIG. 1, a means for regulating the rotation of the column 3 is provided in a state where the rail correction device 6 is placed on the cargo bed 7. Hereinafter, this configuration will be described with reference to FIG. 3 again.

  As shown in FIG. 3, a protrusion 90 is provided at the upper end of the holder 21. The protruding portion 90 protrudes outside the diameter of the holder 21 and is formed with a through hole 91 extending in the vertical direction. The metal plate 20 is provided with a protrusion 92. The protrusion 92 protrudes outward from the side surface of the square pipe 18, and a through hole 93 extending in the vertical direction is formed. The protrusion 92 turns above the holder 21 when the column 3 rotates, and the position of the through hole 93 is changed by the turning of the protrusion 92. When the rail straightening device 6 is placed on the loading platform 7 as shown by a two-dot chain line in FIG. 1 due to the rotation of the support column 3 (turning of the arm 4) or the like, the through hole 93 is positioned above the through hole 91. It will be in the state. When the through holes 91 and 93 are opposed to each other in this way, the pins 94 can be inserted into the through holes 91 and 93, and the rotation of the support column 3 can be restricted by the insertion of the pins 94 (FIG. It shows the state inserted in the holes 91 and 93. The support 3 can be rotated by extracting the pins 94 from the through holes 91 and 93). The means for restricting the rotation of the column 3 is not limited to the above-described configuration. For example, the rotation of the column 3 is regulated by inserting a wedge in the gap between the metal plate 20 and the holder 21. May be.

  Next, a description will be given of the procedure for transporting the cart 1 having the above configuration from the garage to the rail joint location to correct the rail joint drop.

  First, in the storage place of the carriage 1, the arm 4 is turned by rotating the column 3, and the rail correction device 6 is placed on the loading platform 7 (the state of the two-dot chain line in FIG. 1). And the rotation of the support | pillar 3 is controlled by inserting the pin 94 in the through holes 91 and 93. Then, the carriage 1 is mounted on a truck, and the carriage 1 is transported to the railroad crossing by the truck. When the truck reaches the railroad crossing, the carriage 1 is lowered from the truck, and the wheels 8 are placed on the rail R of the railway. Then, by rotating the wheel 8, the carriage 1 is caused to travel to the joint portion of the rail R.

  When the carriage 1 reaches the joint portion of the rail R, the pins 94 are extracted from the through holes 91 and 93 to make the column 3 rotatable. Then, by rotating the arm 3 by rotating the support column 3, or by extending and contracting the first hydraulic cylinder 15 by operating the operation switch and tilting the arm 4 up and down, the rail correction device 6 protrudes to the outside of the loading platform 7, The claw portions 44A and 44B are positioned in the vicinity of the joint of the first rail R. At this time, the operator remotely controls the first hydraulic cylinder 15 using the operation switch while confirming the positions of the claw portions 44A, 44B, the arm 4 and the like, so that the claw portions 44A, 44B are connected to the rail R. The tilting of the arm 4 is controlled so as to be closer to the joint.

  Then, the rail R is sandwiched between the protrusions 60 and 60 at the lower ends of the leg portions 46A and 46B by rotating the suspension shaft 5 around the axis and tilting the suspension shaft 5 and the frame 40. The rail straightening device 6 is fixed on the rail R.

  Then, the third hydraulic cylinder 17 is extended by operating the operation switch, and the levers 43A and 43B are tilted so that the lower ends of the levers 43A and 43B approach each other, whereby the joint of the rail R is sandwiched between the claw portions 44A and 44B. At this time, the operator remotely controls the third hydraulic cylinder 17 using the operation switch while checking the state of the claw portions 44A and 44B and the levers 43A and 43B, thereby tilting the levers 43A and 43B. Control.

  Then, the second hydraulic cylinders 16A and 16B are extended by operating the operation switch, and the connecting plate 41 and the support member 42 are raised, thereby lifting the joint of the rail R and correcting the rail joint drop. At this time, the operator remotely controls the second hydraulic cylinders 16A and 16B by using the operation switches while confirming the state of the claw portions 44A and 44B, the connecting plate 41, the support member 42, and the like, thereby connecting them. The movement of the plate 41 and the support member 42 is controlled.

  With the above operation, the correction of the seam drop of the first rail R is completed. Next, an operation for correcting the joint failure of the second rail R shown below is performed.

  First, the third hydraulic cylinder 17 is contracted by operating the operation switch, the levers 43A and 43B are tilted so that the lower ends of the levers 43A and 43B are separated from each other, and the nail of the first rail R by the claw portions 44A and 44B is released. To do.

  Then, by operating the operation switch, the second hydraulic cylinders 16A and 16B are expanded and contracted to move the support member 42 up and down, the suspension shaft 5 is rotated, and the suspension shaft 5 and the frame 40 are tilted back and forth. As a result, the pinching of the first rail R by the protrusions 60, 60 is released.

  Then, the claws 44A and 44B are positioned in the vicinity of the joint of the second rail R by turning the arm 4 or tilting the arm 4 by extending or contracting the first hydraulic cylinder 15 by operating the operation switch.

  Then, by rotating the suspension shaft 5 or tilting the suspension shaft 5 or the frame 40, the second rail R is sandwiched between the protrusions 60, 60, and the rail correction device 6 is moved to the second one. Fix on rail R.

  Then, the third hydraulic cylinder 17 is extended by operating the operation switch, and the levers 43A and 43B are tilted so that the lower ends of the levers 43A and 43B approach each other, so that the claw portions 44A and 44B have a joint of the second rail R. Let them get caught.

  Then, the second hydraulic cylinders 16A and 16B are extended by operating the operation switch, and the connecting plate 41 and the support member 42 are raised to raise the joint of the second rail R, thereby correcting the rail joint drop.

  With the above operation, the correction of the joint drop of the second rail R is completed. Thereafter, for the correction work of the next rail joint location, the rail correction device 6 is placed on the loading platform 7 (the state of the two-dot chain line shown in FIG. 1), and the carriage 1 travels to the next rail joint location. Is done. At this time, the pin 94 is inserted into the through holes 91 and 93, so that the rotation of the column 3 is restricted.

  According to the cart 1 according to the present embodiment, the rail straightening device 6 can be transported to the joint portion of the rail R by rotating the wheel 8 on the rail R while the rail straightening device 6 is placed on the loading platform 7. . Therefore, the rail straightening device 6 can be transported to the joint portion of the rail R without requiring labor.

  Further, by turning the arm 4 by rotating the support column 3 and tilting the arm 4 up and down, the rail straightening device 6 is projected to the outside of the loading platform 7 and the claw portions 44A and 44B are positioned in the vicinity of the joint of the rail R. be able to. For this reason, it is not necessary for an operator to support the rail correction device 6, and the claw portions 44 </ b> A and 44 </ b> B can be positioned near the joint of the rail R.

  Further, since the suspension shaft 5 can be rotated and the suspension shaft 5 and the frame 40 can be tilted, the direction of the rail correction device 6 can be adjusted in accordance with the undulation of the rail R and the direction in which the rail R extends. Can be adjusted. Therefore, it is possible to smoothly perform the operation of sandwiching the rail R between the protrusions 60 and 60 and fixing the rail straightening device 6.

  In addition, since the rail R is sandwiched between the claw portions 44A and 44B by tilting the levers 43A and 43B, various dimensions can be obtained by appropriately adjusting the dimensions and intervals of the levers 43A and 43B and the claw portions 44A and 44B. Various types of rails R can be sandwiched between the claw portions 44A and 44B.

  In addition, the claw portions 44A and 44B are detachably provided at the lower portions of the levers 43A and 43B, so that the claw portions 44A and 44B whose strength is reduced by repeated use can be replaced with new claw portions 44A and 44B. The type of the claw portions 44A and 44B attached to the levers 43A and 43B can be changed according to the type of the rail R. In addition, since only the claw portions 44A and 44B can be replaced without replacing parts other than the claw portions 44A and 44B, the cost required for replacing the claw portions 44A and 44B can be kept small.

  In addition, since the power that causes the tilting of the arm 4, the vertical movement of the support member 42, and the tilting of the levers 43A and 43B is hydraulic, the arm described above is operated by a single power source (hydraulic power source 14). 4 and the operation of the support member 42 and the levers 43A and 43B can be realized. As a result, the equipment cost can be kept low, and the dimensions of the vehicle body 2 and the like can be kept small.

  Further, since the telescopic operation of the hydraulic cylinders 15, 16A, 16B, 17 can be remotely controlled by the operation switch (that is, the amount of pressure oil supplied from the hydraulic source 14 to the hydraulic cylinders 15, 16A, 16B, 17 can be remotely controlled). ), The operator can check the state of the claw portions 44A, 44B, the arm 4, the levers 43A, 43B, the support member 42, the hydraulic cylinders 15, 16A, 16B, 17 and the like of the hydraulic cylinders 15, 16A, 16B, 17 The telescopic motion can be controlled. For this reason, the operation | work which makes the nail | claw part 44A, 44B approach the joint of the rail R, the operation | work which pinches | interposes the joint of the rail R to the nail | claw part 44A, 44B, the operation | work which lifts the joint of the rail R, etc. can be performed smoothly. In the above, an example in which the hydraulic cylinders 15, 16A, 16B, and 17 are remotely controlled by using the operation switch has been described. However, an operator sitting on the seat 13 operates the main body 98 of the control unit, thereby operating the hydraulic cylinder. The expansion and contraction operations of 15, 16A, 16B, and 17 may be controlled. In this case, the worker who confirms the state of the claw portions 44A, 44B and the like gives instructions to the worker sitting on the seat 13, whereby the rail correction work described above can be smoothly advanced.

  Further, since the support member 42 is moved up and down by the expansion and contraction of the two second hydraulic cylinders 16A and 16B, the height of the hydraulic cylinder 16 is higher than when the support member 42 is moved up and down by the expansion and contraction of one hydraulic cylinder 16. The thickness can be suppressed, and the thickness of the members constituting the hydraulic cylinder 16 can be reduced. For this reason, the weight and dimension of the rail straightening device 6 can be kept small.

  Further, since the means for restricting the rotation of the support column 3 is provided when the rail correction device 6 is placed on the loading platform 7, the rail correction device 6 is rotated by the rotation of the support column 3 when the carriage 1 is traveling. Can be prevented from protruding outside the loading platform 7 and causing an accident.

  In addition, this invention is not limited to the said embodiment, A various change can be made.

  For example, in the above-described embodiment, an example in which the support member 42 moves up and down by the expansion and contraction operation of the two second hydraulic cylinders 16A and 16B has been described. However, the expansion and contraction operation of one hydraulic cylinder 16 or three or more hydraulic cylinders 16 The support member 42 may be moved up and down by the expansion / contraction operation.

  In the above embodiment, an example in which the power for causing the tilt of the arm 4, the vertical movement of the support member 42, and the tilt of the levers 43 </ b> A and 43 </ b> B is hydraulic is shown. The arm 4, the support member 42, and the levers 43A and 43B may be operated.

  Further, the vehicle body 2 may be provided with a tire for traveling on the ground or a road, an engine for driving the tire, and an elevating unit for moving up and down the wheels. In this case, when the wheel is lowered by the lifting / lowering means, the vehicle can travel on the rail R of the railway by the wheel, and when the wheel is lifted by the lifting / lowering means, the vehicle can travel on the ground or road. In order to travel on the ground or road, the vehicle body 2 may be provided with a caterpillar or the like instead of a tire. This caterpillar can also be driven by an engine provided in the vehicle body 2.

DESCRIPTION OF SYMBOLS 1 Bogie 2 Vehicle body 3 Post 4 Arm 4a Arm base 5 Suspension shaft 6 Rail straightening device 7 Loading platform 8 Wheel 14 Hydraulic source 15 1st hydraulic cylinder 16A, 16B 2nd hydraulic cylinder 17 3rd hydraulic cylinder 21 Holder 22 Thrust Bearing 23 Radial bearing 40 Frame 41 Connecting plate 42 Support member 43A, 43B Lever 44A, 44B Claw portion 45 Main member 46A, 46B Leg portion 48 Pin 49 Cylinder tube of second hydraulic cylinder 50 Piston rod 60 of second hydraulic cylinder 60 Protrusion 80 Cylinder tube of third hydraulic cylinder 81 Piston rod R rail of third hydraulic cylinder

Claims (13)

A vehicle body provided with a loading platform, wheels mounted on railroad rails, and a drive mechanism for rotating the wheels;
A support column that is erected up and down on the cargo bed and rotatable about an axis;
An arm that extends laterally from the column and is tiltable up and down with a base end connected to the column as a fulcrum;
A suspension shaft extending in the vertical direction and having an upper end coupled to the arm;
A rail correction device provided with a pair of claws for sandwiching the joint of the rail and suspended from the arm via the suspension shaft;
The rail straightening device
Frame,
A connecting plate to which a support member supporting the pair of claw portions is connected;
A pair of cylinders;
Have
The frame is
A main member connected to the lower end of the suspension shaft and extending in the lateral direction;
A pair of legs extending downward from both ends of the main member,
Each of the pair of cylinders is
A cylinder tube fixed to the leg,
A piston rod extending upward from the cylinder tube and reciprocating with respect to the cylinder tube,
The connecting plate has one end in a lateral direction connected to the piston rod of one of the pair of cylinders and the other in the lateral end of the connecting plate. An end is connected to the piston rod of the other cylinder of the pair of cylinders, so that the connecting plate is configured to be movable up and down by the expansion and contraction of the cylinder, and the wheel is mounted on the rail. , You can travel to the rail joints,
The rail correction device is placed on the cargo bed by rotating the arm with the rotation of the support column or tilting the arm up and down, or the rail correction device is protruded to the outside of the cargo bed, A cart capable of positioning a pair of claws in the vicinity of a rail joint. The rail straightening device is provided with a pair of levers extending in the vertical direction,
The pair of levers can be tilted so that the lower ends approach and separate from each other,
The pair of claw portions are provided at lower ends of the pair of levers,
With the pair of claw portions positioned in the vicinity of the rail joint, the pair of levers can be tilted to sandwich the rail joint between the pair of claw portions.
The cart according to claim 1. The pair of claws are detachably provided at the lower ends of the pair of levers.
The cart according to claim 2. An intermediate portion of the pair of levers is pivotally supported on the support member so as to be rotatable.
The rail straightening device has a cylinder different from the cylinder,
Said another cylinder is:
A cylinder tube;
A piston rod extending from the cylinder tube and reciprocating relative to the cylinder tube,
The cylinder tube of the other cylinder is connected to the upper end of one lever of the pair of levers, and the piston rod of the other cylinder is connected to the upper end of the other lever of the pair of levers. ing,
The trolley | bogie of Claim 2 or Claim 3. The suspension shaft can tilt back and forth with an upper end connected to the arm as a fulcrum, and can rotate around the shaft.
The trolley | bogie in any one of Claims 1 thru | or 4. The central portion of the main member is connected to the lower end of the suspension shaft via a pin that passes through the central portion of the main member and the lower end of the suspension shaft.
The frame is tiltable about the pin;
The cart according to any one of claims 1 to 5. Each of the pair of legs is provided with a pair of protrusions,
Each of the pair of protrusions protrudes downward from the lower end of the leg portion, and is opposed via an interval corresponding to the width of the rail.
The cart according to any one of claims 1 to 6. A cylinder that is connected to the arm and the support column and performs a telescopic operation to tilt the arm;
The trolley | bogie in any one of Claim 1 thru | or 7 . The cylinders are all hydraulic cylinders,
An operation switch capable of remotely controlling the amount of pressure oil supplied from a hydraulic source to the hydraulic cylinder by switching a solenoid valve for controlling the amount of pressure oil supplied to the hydraulic cylinder;
The cart according to claim 8. The rail correction device is configured to be able to lift the rail joint by moving the support member upward with the pair of claws sandwiching the rail joint.
The trolley | bogie in any one of Claim 1 thru | or 9. A vehicle body provided with a loading platform, wheels mounted on railroad rails, and a drive mechanism for rotating the wheels;
A support column that is erected up and down on the cargo bed and rotatable about an axis;
An arm that extends laterally from the column and can tilt up and down with a base end connected to the column as a fulcrum;
A pair of claws for sandwiching a rail joint, and a rail correction device suspended from the arm,
By rotating the wheel on the rail, it is possible to travel to the joint of the rail,
The rail correction device is placed on the cargo bed by rotating the arm with the rotation of the support column or tilting the arm up and down, or the rail correction device is protruded to the outside of the cargo bed, It is possible to position the pair of claws near the rail joint,
Further comprising a cylindrical holder fixed to the loading platform,
The lower part of the column is inserted into the holder,
A base end of the arm is rotatably connected to an upper portion of the support column extending above the holder,
Between the inner surface of the holder and the outer surface of the lower portion of the column, a thrust bearing that receives the vertical load of the column and a radial bearing for smooth rotation of the column are provided.
Trolley. A vehicle body provided with a loading platform, wheels mounted on railroad rails, and a drive mechanism for rotating the wheels;
A support column that is erected up and down on the cargo bed and rotatable about an axis;
An arm that extends laterally from the column and can tilt up and down with a base end connected to the column as a fulcrum;
A pair of claws for sandwiching a rail joint, and a rail correction device suspended from the arm,
By rotating the wheel on the rail, it is possible to travel to the joint of the rail,
The rail correction device is placed on the cargo bed by rotating the arm with the rotation of the support column or tilting the arm up and down, or the rail correction device is protruded to the outside of the cargo bed, It is possible to position the pair of claws near the rail joint,
In the state where the rail correction device is placed on the cargo bed, the rail correction device further includes means for restricting the rotation of the column.
Trolley.   The vehicle body is provided with a tire for traveling on the ground or a road, an engine for driving the tire, and an elevating means for elevating and lowering the wheel, and when the wheel is lowered by the elevating means, The cart according to any one of claims 1 to 12, wherein the vehicle can travel on railroad rails by the wheels and can travel on the ground or a road by the tires when the wheels are lifted by the lifting means.