JP4157252B2 - Mechanical preemption device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mechanical pre-emption device used when a maintenance vehicle is taken in and out of a main line.
[0002]
[Prior art]
In particular, in high-speed railways, a mechanical pre-emption device that connects the main line and the service line when connecting the service vehicle to and from the main line without installing a branching device between the service line and the main line that stores the service vehicle is provided. use. This intercepting device includes a guide rail provided in a direction substantially perpendicular to the main line, a frame that advances and retreats along the guide rail, and a turnout support arm that is rotatably supported by the frame via a bearing. The turnout support arm is supported by the turnout support arm and has a turnout that is movable to a retracted position on the side of the main line and a connecting position between the main line and the lead-in line.
[0003]
However, if there is a gap of about several millimeters between the lower surface of the turnout and the upper surface of the main rail when using the pre-emption device, problems such as strength of the turnout and interference between the vehicle and the turnout when passing the maintenance vehicle occur. . In addition, a gap is formed between the lower surface of the turnout and the upper surface of the main rail when the main rail is raised or lowered from the beginning due to subsidence or ballast replacement after installation or after installation. To eliminate this gap, loosen the mounting bolts of the bearing at the base end of the support arm while supporting the bottom surface of the support arm with a portable jack, adjust the space between the bottom surface of the turnout and the top surface of the main rail, and insert a shim at the bottom of the bearing. Tighten the bearing mounting bolts and remove the portable jack. Also, as the height of the main rail top surface changes, the turnout height also changes, so the turnout joint installed between the lead-in line and the turnout is lifted with a bar or the like, and a shim is inserted under it .
[0004]
[Problems to be solved by the invention]
These clearance adjustment operations must be performed reliably within a limited time during the night, but in the above-described steps, the operations are time consuming and laborious.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a mechanical preparatory device that can reliably perform clearance adjustment work in a short time.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a guide rail provided in a direction substantially perpendicular to the main line on the side of the main line, a frame that advances and retreats along the guide rail, and a bearing on the frame. A mechanical pretending device having a turnout support arm rotatably supported, and a turnout supported by the turnout support arm and movable to a retracted position on the side of the main line and a connecting position of the main line and the lead-in line. In the above, a height adjusting member is disposed between the bearing lower surface and the underframe, and a turnout joint capable of adjusting the height is installed on the turnout side of the lead-in wire.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings. A mechanical pretending device 3 installed on the side of the main line 1 and connected to the main line 1 and the lead-in line 2 includes three guide rails 4 provided on the side of the main line 1 in a direction substantially perpendicular to the main line 1, A frame 5 that advances and retreats along the guide rail 4, three turnout support arms 6 that are rotatably supported by the frame 5 in the vertical direction, and a turn that is supported by the turnout support arm 6. Has 7 out.
[0008]
The underframe 5 supports each turnout support arm 6 with a height adjusting member 8 disposed on the upper surface of the rear portion and an elevating device 9 disposed on the upper surface of the front portion. The height adjusting member 8 is a turnbuckle type composed of a lower bolt 8a and an upper bolt 8b in which screw threads in opposite directions are formed, and a nut 8c screwed to both the bolts 8a and 8b. The turnout support arm 6 is supported via a bearing 10 attached to the upper surface of the frame 5 and attached to the upper surface of the upper bolt 8b.
[0009]
The turnout 7 includes a pair of left and right rails 7a and 7a connected to the main line 1 and the lead-in line 2, a plurality of horizontal frames 7b provided at predetermined intervals on the lower surface of the rails 7a and 7a, and the turnout 7 to the main line 1. It is composed of a support frame 7c that supports the turnout 7 together with the horizontal frame 7b on the rail of the main line 1 when moved to the connecting position with the lead-in wire 2. When moving to the connecting position between the main line 1 and the lead-in line 2, the lead-in line side is continuous with the turnout joint 11 installed on the turnout side of the lead-in line 2, and the main line side is tapered toward the main line 1 Is formed on the rail of the main line 1 and continues to the main line 1. When the main line 1 and the lead-in line 2 are moved to the connecting position, predetermined positions on the lower surface of the turnout support arm 6 and the lower surface of the horizontal frame 7b are supported by the ground-side support base 12.
[0010]
The turnout joint 11 has rails 11b and 11b fixed on a substantially trapezoidal frame 11a. Pins 11c are provided on both sides of the frame 11a, and jack receptacles 11d are provided on the turnout side. The pin 11c is installed by being inserted into the elongated hole 13a in the vertical direction of the bracket 13 installed on the ground side. Thereby, the jack receivers 11d and 11d are supported by the portable jack and the height of the turnout joint 11 can be adjusted by operating the portable jack.
[0011]
When connecting the main line 1 and the lead-in line 2 to the mainline 1 configured as described above, the turnout 7 is raised by the elevating device 9 at the retracted position, and the underframe 5 is moved forward to the main line 1 to a predetermined position. When reaching, turnout 7 is lowered and set to the connecting position of main line 1 and lead-in line 2. At this time, if there is a gap between the lower surface of the turnout 7 and the upper surface of the main line 1 rail, the nut 8c of the height adjusting member 8 of each turnout support arm 7 is rotated to rotate the base of each turnout support arm 7. By adjusting the end height, the gap between the lower surface of the turnout 7 and the upper surface of the main line 1 rail can be eliminated. Further, the difference in height between the turnout 7 and the turnout joint 11 is adjusted by operating a portable jack that supports the lower surfaces of the jack receptacles 11d and 11d of the turnout joint 11.
[0012]
Therefore, the clearance adjustment work between the lower surface of the turnout 7 and the upper surface of the main line 1 rail and the height adjustment work between the turnout 7 and the turnout joint 11 can be easily and securely performed in a short time.
[0013]
【The invention's effect】
As described above, the mechanical pre-emption device according to the present invention has a height adjusting member disposed between the bearing lower surface of the base end of the turnout support arm that supports the turnout connected to the main line and the lead-in line and the base frame. Because the turnout joint that can adjust the height is installed on the turnout side of the lead-in wire, the bottom of the turnout and the top of the main rail can be adjusted by adjusting the height of the turnout support arm base by operating the height adjustment member. The gap adjustment work and the height adjustment work of the turnout and turnout joint can be performed easily and safely in a short time.
[Brief description of the drawings]
[Fig. 1] Side view of the pre-emption device [Fig. 2] Plan view of the pre-emption device [Fig. 3] Cross-sectional view of the height adjustment member [Fig. 4] Plan view of the turn-out joint [Fig. FIG. 6 is a sectional view taken along line VI-VI in FIG.
DESCRIPTION OF SYMBOLS 1 ... Main line, 2 ... Lead-in wire, 3 ... Crossing device, 4 ... Guide rail, 5 ... Underframe, 6 ... Turnout support arm, 7 ... Turnout, 8 ... Height adjustment member, 10 ... Bearing, 11 ... Turnout Joint, 11c ... pin, 11d ... jack receiver, 12 ... ground side support, 13 ... turnout joint support bracket, 13a ... long hole

Claims (1)

A guide rail provided in a direction substantially perpendicular to the main line on the side of the main line, a frame that advances and retreats along the guide rail, and a turnout support arm that is rotatably supported by the frame via a bearing. In the mechanical pre-emption device having a turnout supported by the turnout support arm and movable to a retracted position on the side of the main line and a connecting position between the main line and the lead-in line, between the bearing lower surface and the underframe A height-adjusting member is disposed on the turn-out side of the lead-in wire, and a turn-out joint capable of adjusting the height is installed on the lead-out line.

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