JP6535243B2 - Rail cutting machine - Google Patents

Description

  The present invention relates to a rail slotting machine for cutting a top surface of a railway rail to form a groove for track circuit.

  Generally, in order to sense the presence or absence of a vehicle, in a railway rail, it is required to maintain a track circuit formed on the top of the rail in a constantly energized state. However, in the scattered line area, the track circuit may not be able to be energized due to the rust of the rail top surface. In this case, it is necessary to cut the top of the head continuously in the longitudinal direction of the rail to form a groove, and stainless steel welding is performed on the groove to restore the track circuit to a conductive state.

  Conventionally, this type of groove cutting operation has been performed manually by wire maintenance workers. The worker carried a grinder and cut a ditch on the top of the head while walking along the rail. In addition, in patent document 1, the "ditch drilling apparatus" which automatically cuts the groove | channel for preventing the breakage of a rail and the expansion of a crack to a rail top surface is described. This device is equipped with a grooving cutter, a rail surface grinder, and power sources for these on a chassis capable of traveling on two rails.

Japanese Utility Model Application Publication No. 2-120503

  However, since the conventional ditching work has been performed manually, there is a problem in that the labor requires a great deal of labor and burden, the working speed is low, and the processing accuracy of the grooves is low. In addition, although it is conceivable to divert the device of Patent Document 1 to grooving for stainless steel welding, since the conventional device is a large machine that spans two rails, the work including loading and unloading of the machine is necessary. It became large-scale and was unsuitable for the use in the scatter line area.

  Therefore, an object of the present invention is to provide a rail slotting machine which can be easily used on one rail and can cut the groove on the rail top surface quickly and accurately.

In order to solve the above-mentioned subject, the present invention provides the following rail slotting machines.
(1) A running wheel supported on the top surface of the rail, guide wheels engaged with both left and right side surfaces of the rail, and a groove for cutting a groove on the top surface of the rail in a chassis installed on one rail A rail cutting groove machine comprising a cutting tool and a holding mechanism for holding the groove cutting tool at a predetermined position in the rail width direction.

(2) A rail slotting machine characterized in that a chassis has a handle.

(3) The traveling wheel includes the front traveling wheel provided at the front of the chassis and the rear traveling wheel provided at the rear of the chassis, and the guide wheel is disposed forward of the front traveling wheel A rail slotting machine characterized by including a guide wheel and a rear guide wheel disposed rearward of a rear traveling wheel.

(4) A rail slotting machine characterized in that the guide wheel is provided so as to be switchable between an operating position for sandwiching the rail from the left and right and a non-operating position spaced above the top surface of the rail.

(5) A rail cutting and groove machine characterized in that a cutting pressure adjusting mechanism for adjusting the cutting pressure of the grooving tool is provided on a chassis.

(6) A rail cutting machine characterized in that the cutting pressure adjusting mechanism includes a weight member for applying a load in the cutting direction to the cutting blade of the grooving tool.

(7) A rail grooving machine characterized in that the holding mechanism includes a damping member for suppressing vibration of the grooving tool in the rail width direction.

(8) A rail grooving machine characterized in that the holding mechanism includes a holder for fixedly holding the grooving tool, and an adjusting member for adjusting the position of the holder in the rail width direction with respect to the chassis.

(9) A rail slotting machine characterized in that the holding mechanism includes a hinge member which supports the holder so as to be capable of tilting in the vertical direction with respect to the chassis.

  According to the rail groove cutting machine of the present invention, in addition to the traveling wheels, a pair of left and right guiding wheels are provided on the chassis, so that the chassis can be stably moved on one rail. Therefore, the entire groove cutting machine can be reduced in size and weight, and can be easily carried in and out by a small number of workers. In addition, since the grooving tool is held at a predetermined position in the rail width direction by the holding mechanism, the grooves can be cut automatically on the rail crown top surface accurately with the movement of the chassis, thereby reducing labor and burden on workers There is an effect that the work time can be significantly reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole perspective view of the rail slotting machine which shows one Embodiment of this invention. FIG. 2 is an elevational view of the rail slotting machine as viewed from the right side of FIG. 1; FIG. 3 is an elevational view of a rail slotting machine as viewed from line III-III in FIG. 2; It is a partial top view of the groove cutting machine which shows the holding mechanism of a groove cutting tool. FIG. 7 is a partial elevational view of the slot machine showing the operation of the holding mechanism.

  Hereinafter, an embodiment of the present invention will be described based on the drawings. The rail grooving machine of this embodiment is configured to cut a groove for stainless steel welding on the top surface of a railway rail. However, the rail grooving machine of the present invention is not limited to grooving for stainless steel welding, and it is used, for example, for grooving for brass brazing, grooving for preventing expansion of cracks and breakage, etc. You can also.

  As shown in FIG. 1 and FIG. 2, this rail cutting and grooving machine 11 is provided with a chassis 12 installed on one rail 1. A front traveling wheel 13 is provided at the front end of the traveling direction of the chassis 12 (the arrow direction in FIG. 1), and a rear traveling wheel 14 and a manual handle 15 are provided at the rear end of the chassis 12. The front and rear traveling wheels 13 and 14 are supported on the top surface 2 of the rail 1 (see FIG. 2) so that the operator can push the handle 15 to move the chassis 12 forward along the one rail 1 There is.

  An auxiliary frame 17 is vertically tiltably supported by the axle shaft 16 of the front traveling wheel 13 and a pair of left and right front guide wheels 18 are attached downward to the auxiliary frame 17 at a predetermined interval corresponding to the width of the rail 1 ing. The left and right front guide wheels 18 are disposed in front of the front traveling wheels 13 and, with the tilting of the auxiliary frame 17, the action position sandwiching the rail 1 from the left and right and the non-action away from the rail top surface 2 It can be relocated to the position (dotted line position in FIG. 3).

  An auxiliary frame 20 is supported so as to be vertically tiltable on an axle 19 of the rear traveling wheel 14, and a pair of left and right rear guide wheels 21 are attached to the auxiliary frame 20 at a predetermined interval. The rear guide wheel 21 is disposed further to the rear than the rear travel wheel 14 and, like the front guide wheel 18, the operating position (dotted line position in FIG. 3) and the non-operating position along with the tilting of the auxiliary frame 20. It is relocated to the position (dotted line position in FIG. 3). In FIG. 2, reference numeral 3 denotes a tie supporting the rail 1.

  As shown in FIGS. 1 and 3, on the chassis 12, an electric grooving tool 23 for cutting a groove in the rail top surface 2 and a holding mechanism for holding the electric grooving tool 23 at a predetermined position in the rail width direction A cutting pressure adjusting mechanism 25 for adjusting the cutting pressure of the electric grooving tool 23 and a generator 26 for supplying electric power to the electric grooving tool 23 are installed. Instead of the generator 26, it is also possible to supply electric power from a commercial power source to the electric grooving tool 23 through a feeding cable.

  The motorized grooving tool 23 is equipped with a disk 28 as a cutting blade at one end of a body 27 and rotates the disk 28 by a motor (not shown) built in the body 27 to form grooves 4 (the rail top surface 2 4) can be cut continuously. The holding mechanism 24 includes a holder 29 for fixedly holding the electric grooving tool 23 and a hinge member 30 for supporting the holder 29 so as to be able to tilt in the vertical direction with respect to the chassis 12.

  The hinge member 30 is attached to the horizontal adjustment member 32 through the vertical adjustment member 31, and the horizontal adjustment member 32 is attached with the holder 29 so as to be adjustable in position in the rail width direction with the holder 29 by bolts 34 passing through the long holes 33. It is done. On the other hand, as shown in FIG. 5, the vertical adjustment member 31 is mounted so as to be adjustable in position in the vertical direction with respect to the chassis 12 together with the holder 29 by a bolt 36 penetrating the long hole 35.

  As shown in FIGS. 3 and 4, a bracket 39 is fixed to the chassis 12 at the base end on the side of the electric grooving tool 23. At the front end of the bracket 39, a roller 38 as a damping member is supported rotatably around a horizontal axis. The contact plate 40 is erected on the holder 29 so as to face the damping roller 38, and the vibration of the electric grooving tool 23 at the time of cutting is the rail width with the damping roller 38 in contact with the contact plate 40. It is designed to deter from the direction.

  As shown in FIGS. 1 and 5, the cutting pressure adjusting mechanism 25 is a weight member 42 for applying a load in the cutting direction to the disc 28 of the electric grooving tool 23, and a threaded rod for supporting the weight member 42 in a removable manner. It has 43. The lower end of the threaded rod 43 is connected to the tool body 27 in the vicinity of the disk 28 via a joint 44, and a bearing 45 for supporting the weight member 42 is provided at the upper part of the threaded rod 43.

  A middle portion of the threaded rod 43 is inserted into a horizontal rod 46 installed above the chassis 12 and a thumb screw for setting the lower limit position of the disk 28 to be adjustable in the rod 43 above the horizontal rod 46 47 are screwed together. Then, at the time of cutting, arrange the thumbscrew 47 above the horizontal weir 46 (see FIG. 3), and press the disc 28 against the rail top surface 2 with a load corresponding to the number of weight members 42 or the total mass. It has become.

  Next, a method of cutting the groove 4 on the top surface 2 of the railway rail 1 will be described. First, the rail groove cutter 1 configured as described above is carried into a work site. At this time, as shown by a chain line in FIG. 3, the front and rear guide wheels 18 and 21 and the electric grooving tool 23 are arranged in advance at the non-operating position above the rail top surface 2 respectively. In this way, the chassis 12 can be easily installed on the rail 1 without being disturbed by the guide wheels 18 and 21 and the disc 28.

  Subsequently, as shown by solid lines in FIG. 3, the guide wheels 18 and 21 are disposed on the left and right sides of the rail 1 and the disc 28 is lowered onto the rail top surface 2. Then, in this state, the worker activates the motorized grooving tool 23, rotates the disc 28, pushes the handlebars 15, advances the chassis 12 on the rail 12, and as shown in FIG. The grooves 4 are continuously cut on the top surface 2 of the head.

  During this cutting, the holder 29 holds the disc 28 at a predetermined position in the rail width direction, and the damping roller 38 suppresses horizontal vibration of the electric grooving tool 23. Therefore, the groove 4 is made highly accurate in the rail top surface 2. It can be processed. In addition, the cutting depth of the groove 4 can be easily adjusted by adjusting the cutting pressure by the weight member 42, and the position adjustment of the horizontal adjusting member 32 is performed as shown by a chain line in FIG. The cutting position can also be adjusted in the rail width direction.

  As shown in FIG. 5, when the disc 28 wears due to the grooving operation, the holder 29 tilts downward following the change in the radial dimension of the disc 28. Therefore, the disc 28 is always subjected to the optimum cutting pressure It can be cut into the rail top surface 2. Further, when the holder 29 tilts, the damping roller 38 rotates while maintaining contact with the contact plate 40, so that the damping function can be continuously exhibited regardless of the wear of the disc 28.

  In addition, this invention is not limited to the said embodiment, For example, the motor which drives the driving | running | working wheels 13 and 14 is installed on the chassis 12, or the grinding machine which removes rust of rail top surface 2 is mounted. It is also possible to appropriately change the shape and configuration of each part and carry out without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 rail 2 head top surface 4 groove 11 rail slotting machine 12 chassis 13 front side traveling wheel 14 back side traveling wheel 15 hand steering handle 18 front side guide wheel 21 rear side guide wheel 23 electric groove cutting tool 24 holding mechanism 25 cutting pressure adjusting mechanism 28 disc 29 holder 30 hinge member 32 horizontal adjustment member 38 damping roller 42 weight member

Claims (8)

On a chassis installed on one rail, a traveling wheel supported on the top of the rail, guide wheels engaged with both left and right sides of the rail, and a grooving tool for cutting a groove on the top of the rail And a holding mechanism for holding the grooving tool at a predetermined position in the rail width direction, and the guide wheel is disposed at an operating position for sandwiching the rail from the left and right and at a non-operating position spaced above the top surface of the rail A rail grooving machine characterized in that it is switchable.   The rail slotting machine according to claim 1, wherein the chassis has a handle.   The traveling wheel includes a front traveling wheel provided at a front end of the chassis and a rear traveling wheel provided at a rear end of the chassis, and the guide wheel is disposed in front of the front traveling wheel The rail cutting machine according to claim 1 or 2, further comprising a front guide wheel and a rear guide wheel disposed rearward of the rear traveling wheel. The rail cutting machine according to any one of claims 1 to 3 , wherein a cutting pressure adjusting mechanism for adjusting a cutting pressure of the grooving tool is provided on the chassis. The rail cutting machine according to claim 4 , wherein the cutting pressure adjusting mechanism includes a weight member which applies a load in a cutting direction to the grooving tool. The rail holding groove machine according to any one of claims 1 to 5 , wherein the holding mechanism includes a damping member that suppresses vibration of the groove cutting tool in the rail width direction. The holder according to any one of claims 1 to 6 , wherein the holding mechanism includes a holder for fixedly holding the grooving tool, and an adjusting member for adjusting the position of the holder in the rail width direction with respect to the chassis. Rail slotting machine. The rail cutting machine according to claim 7 , wherein the holding mechanism includes a hinge member which supports the holder so as to be capable of tilting in the vertical direction with respect to the chassis.

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