JP2020044908A - Electric switch machine - Google Patents

Abstract

To provide an electric switch machine capable of easily performing maintenance work.SOLUTION: An electric switch machine 1 comprises a reciprocally moving operation stick 16. Receiving members 21R, 21L are detachably fitted to a case body part 111 and guide movements of the operation stick 16. The receiving members 21R, 21L are arranged to surround the periphery of the operation stick 16. An opening through which the operation stick 16 can be pulled out is provided on the case body part 111. The receiving members 21R, 21L are fitted to the case body part 111 to close at least a part of the opening.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric switch.

  The electric point machine is an electric device for moving the tongue rail of a turnout on a track on which a train runs between a normal position and a reverse position. A general electric pointing machine includes a motor, a reduction gear and a conversion gear that transmit the power of the motor to the conversion roller, and a conversion roller that rotates by the power of the motor that is transmitted through the gears. It has an operation rod that moves linearly with the rotation of the conversion roller. With the linear motion of the operation can, the tongue rail connected to the operation can is moved to the normal position or the inverted position.

  Further, the electric pointing machine includes a pair of lock pieces that linearly move in different directions according to the rotational movement of the conversion roller, and a lock can that is connected to the tongue rail and linearly moves with the movement of the tongue rail. . When the tongue rail is correctly positioned or inverted, the end of the lock piece corresponding to the position of the tongue rail fits into the notch of the lock can and the position of the tongue rail is locked.

  As a patent document that discloses an invention related to an electric switch, there is Patent Document 1, for example.

JP 2003-146213 A

  Reciprocating parts (moving cans, lock cans, lock pieces, etc.) of the electric point machine slide on the receiving part while being guided by the receiving part provided in the case as the tong rail moves. I do. With this sliding, the reciprocating parts and the receiving part of the case are worn. If the wear of a part or case exceeds a reference value, the worn part or case needs to be replaced or repaired.

  2. Description of the Related Art Conventionally, in order to replace or repair a worn part or a case of an electric point machine, it is necessary to disassemble the electric point machine, which is troublesome. Therefore, it is difficult to replace or repair parts or cases at the installation site of the electric switch. Therefore, it is necessary to transport the electric point machine with wear exceeding the standard value to the maintenance factory, but the electric point machine is so heavy that it is difficult to move by human power. Cost. In addition, during maintenance of worn electrical points that exceed standard values, it is necessary to prepare and install alternative electric points that operate in the field.

  In view of the above background, the present invention provides an electric point machine that can easily perform maintenance work.

  In order to solve the above-mentioned problem, the present invention relates to an electric point-turning machine having a receiving member detachably attached to a case for receiving a part that reciprocates and guiding the movement of the part. Provide as.

  According to the electric pointing machine of the first aspect, since the detachable receiving member is worn, when the wear exceeds a reference value, only the receiving member needs to be replaced, and maintenance work is easily performed. be able to.

  In the electric switch of the first aspect, a configuration in which the receiving member includes a plurality of members arranged so as to surround the component may be adopted as a second aspect.

  According to the electric switch of the second aspect, since the receiving member is composed of a plurality of members, the receiving member can be easily attached and detached.

  In the electric pointing machine according to the first or second aspect, the component is an operation can, and has an opening through which the operation can be pulled out from the case, and the receiving member has at least one of the openings. A configuration of being attached to the case so as to close the portion may be adopted as a third mode.

  According to the electric switch of the third aspect, when the operating can is worn beyond the reference value, the operating can can be pulled out of the case by removing the receiving member, so that the operating can can be easily replaced. Can be done.

FIG. 1 is a plan view of an electric pointing machine according to one embodiment. FIG. 2 is a side view of the electric switch according to the embodiment. The figure for demonstrating the structure of the lock of the electric switch which concerns on one Embodiment. The figure which showed arrangement | positioning and the shape of the receiving member of the electric pointing machine which concerns on one Embodiment. The figure which illustrated the shape of the receiving member of the electric pointing machine which concerns on a modification.

[Embodiment]
Hereinafter, an electric point machine 1 according to an embodiment of the present invention will be described. FIG. 1 is a plan view schematically showing the entire configuration of the electric pointing machine 1 with a case lid removed. FIG. 2 is a side view of the electric switch 1. FIG. 2A is a side view as viewed from the direction of arrow A in FIG. 1, and FIG. 2B is a side view as viewed from the direction of arrow B in FIG.

  The electric pointing machine 1 includes a case 11 and a motor 12 attached to the case 11. The case 11 includes a case body 111 and a case lid 112. FIG. 1 shows the electric switch 1 with the case 112 removed from the case body 111. FIG. 2 shows a state where the case lid 112 is attached to the upper part of the case main body 111.

  In the following description, the horizontal direction in FIG. 1 is the X direction, the right direction is the X positive direction, the left direction is the X negative direction, the vertical direction in FIG. 1 is the Y direction, the upward direction is the Y positive direction, and the downward direction is The direction perpendicular to the paper surface of FIG. 1 is defined as the Z direction, the direction from the paper surface toward this side is defined as the Z positive direction, and the direction from the paper surface toward the other side is defined as the Z negative direction.

  Hereinafter, components arranged in the case 11 (including components that partially protrude outside the case 11) will be described. The reduction mechanism 13 has a reduction gear or the like, and transmits the power of the motor 12 to the conversion gear 14. The conversion gear 14 rotates within a predetermined range around the axis O by the power of the motor 12 transmitted via the reduction mechanism 13.

  The conversion roller 15 is a roller provided on the lower surface of the conversion gear 14 so as to protrude in the Z negative direction. The conversion roller 15 moves on an arc path with the rotation of the conversion gear 14, and moves the cam side surface of the operation can 16 during the movement. When the cam bar 18L and the cam bar 18R are pushed, they are linearly reciprocated in the X direction.

  The operation can 16 and the lock can 17 are arranged so as to penetrate the case 11 in the Y direction.

  The operation can 16 is a component for moving the position of the tongue rail (not shown) between the normal position and the inverted position. One end (for example, the end in the Y negative direction side) of the operation can 16 is connected to the tongue rail, and when the operation can 16 is moved in the Y direction by being pushed by the conversion roller 15, the position of the tongue rail is changed. It can be switched between normal and inverted.

  The lock can 17 is a component for locking the tongue rail switched to the normal position or the inverted position at that position. One end (for example, the end in the Y negative direction side) of the lock can 17 is connected to the tongue rail, and the tongue rail moves between the normal position and the inverted position as the operation can 16 moves in the Y direction. When switched, the lock can 17 also moves in the Y direction (the same direction as the operation can 16).

  As described above, the cam bar 18L and the cam bar 18R are pushed by the conversion roller 15 and reciprocate linearly in the X direction. The lock piece 19L is attached to the cam bar 18L, and reciprocates linearly with the cam bar 18L in the X direction. The lock piece 19R is attached to the cam bar 18R, and reciprocates linearly with the cam bar 18R in the X direction.

  FIG. 3 is a diagram for explaining a mechanism in which the position of the lock can 17 is locked by the lock piece 19L or the lock piece 19R by the movement of the conversion roller 15 on the arc path.

  FIG. 3A is a diagram illustrating a state of the operation can 16, the lock can 17, and the like when the conversion roller 15 is located at an end point on the counterclockwise side of the arc path. In the state of FIG. 3A, the cam bar 18L and the lock piece 19L have moved from the home position in the negative X direction, and the operation can 16 and the lock can 17 have moved in the positive Y direction.

  The lock can 17 is composed of a bar 172 and a bar 171 stacked with a gap in the Z direction. The tip of the lock piece 19L and the tip of the lock piece 19R are inserted into the gap between the bars 172 and 171.

  The tip of the lock piece 19L is thicker than other portions so as to protrude upward. The tip of the lock piece 19R is thicker than other portions so as to protrude downward.

  The bar 172 is provided with a notch 174 for receiving the tip (thick portion) of the lock piece 19R so as to be recessed downward from the upper surface of the bar 172. Further, the bar 171 is provided with a cutout portion 173 for receiving the tip portion (thick portion) of the lock piece 19L so as to be recessed upward from the bottom surface of the bar 172. In the state of FIG. 3A, the tip of the lock piece 19 </ b> L is fitted in the notch 173. As described above, when the tip of the lock piece 19L is fitted in the notch 173, the lock can 17 cannot move in the Y direction. Therefore, for example, even if an external force is applied to the tongue rail, the position of the tongue rail does not shift.

  FIG. 3B shows the operation can 16 and the lock can when the conversion roller 15 rotates clockwise slightly less than 180 degrees from the position shown in FIG. 3A and reaches the end point on the X positive direction side of the arc path. It is the figure which showed the state of 17, etc. Between the state shown in FIG. 3A and the state shown in FIG. 3B, the conversion roller 15 first moves the cam bar 18L to the home position in the positive X direction. As the cam bar 18L moves, the lock piece 19L moves in the positive X direction, and the tip of the lock piece 19L comes off the notch 173. Thereby, the lock can 17 can be moved in the Y direction.

  Subsequently, the conversion roller 15 moves the operation rod 16 in the negative Y direction. With the movement of the operation can 16, the lock can 17 also moves in the Y negative direction.

  FIG. 3C shows the operation can 16 and the lock can 17 when the conversion roller 15 rotates clockwise slightly less than 180 degrees from the position shown in FIG. 3B and reaches the clockwise end point of the arc path. FIG. Between the state shown in FIG. 3B and the state shown in FIG. 3C, the conversion roller 15 first moves the operation can 16 in the negative Y direction. With the movement of the operation can 16, the lock can 17 also moves in the Y negative direction.

  Subsequently, the conversion roller 15 moves the cam bar 18R from the home position in the negative X direction. With the movement of the cam bar 18R, the lock piece 19R moves in the negative X direction, and the leading end of the lock piece 19R fits into the notch 174. In this state, the lock can 17 cannot move in the Y direction. Therefore, for example, even if an external force is applied to the tongue rail, the position of the tongue rail does not shift.

  When the conversion roller 15 moves counterclockwise on the arc path, the states of the operation can 16 and the lock can 17 change from FIG. 3 (c) to FIG. 3 (a) through FIG. 3 (b). I do.

  As described above, when the conversion roller 15 moves clockwise and counterclockwise on the arc path to switch the tong rail between the normal position and the counter position, the operation can 16 and the lock can 17 are linearly moved in the Y direction. The cam bar 18R and the lock piece 19R reciprocate, and the cam bar 18L and the lock piece 19L reciprocate linearly in the X direction. A receiving member for guiding the reciprocating rectilinear motion is detachably attached to the case 11 to these components which reciprocate linearly. The receiving members will be described below (see FIGS. 1 and 2).

  The electric pointing machine 1 includes a receiving member 21R and a receiving member 21L for guiding the movement of the operation can 16.

  The receiving member 21R is detachably attached to the case 11 so as to partially cover an opening 113R provided on a side surface of the case 11 on the Y negative direction side from the outside. The receiving member 21R includes a receiving member 212R and a receiving member 211R. The receiving member 212R and the receiving member 211R are detachably attached to the case 11 by a plurality of bolts 25.

  A cutout for forming an opening for receiving the operation can 16 is provided on both or one of the receiving member 212R and the receiving member 211R. The receiving member 212R and the receiving member 211R are examples of a plurality of members arranged so as to surround the operation can 16.

  The receiving member 21L is detachably attached to the case 11 so as to partially cover an opening 113L provided on a side surface of the case 11 on the Y-direction side from the outside. The receiving member 21L includes a receiving member 212L and a receiving member 211L. The receiving member 212L and the receiving member 211L are detachably attached to the case 11 by a plurality of bolts 25.

  Notches are provided on both or one of the receiving member 212L and the receiving member 211L for forming an opening for receiving the operation can 16. The receiving member 212L and the receiving member 211L are an example of a plurality of members arranged so as to surround the operation can 16.

  The shape of the opening 113R and the opening 113L provided in the case 11 is a shape surrounding the outside of the shape of the operation can 16 as viewed in the Y direction. Therefore, with the receiving members 21R and 21L detached from the case 11, the operation can 16 can be pulled out of the case 11 through the openings 113R and 113L.

  The electric switch 1 includes a receiving member 22R and a receiving member 22L that guide the movement of the lock can 17.

  The receiving member 22R is detachably attached to the case 11 so as to cover a part of the opening 114R provided on the side surface of the case 11 on the Y negative direction side from the outside. The receiving member 22R includes a receiving member 221R and a receiving member 222R. The receiving member 221R and the receiving member 222R are detachably attached to the case 11 by a plurality of bolts 25.

  A cutout for forming an opening for receiving the lock can 17 (the bar 172 and the bar 171) is provided on both or one of the receiving member 221R and the receiving member 222R. The receiving member 221R and the receiving member 222R are an example of a plurality of members arranged so as to surround the lock can 17.

  The receiving member 22L is detachably attached to the case 11 so as to partially block an opening 114L provided on a side surface of the case 11 on the Y-direction side from the outside. The receiving member 22L includes a receiving member 222L and a receiving member 221L. The receiving member 222L and the receiving member 221L are detachably attached to the case 11 by a plurality of bolts 25.

  A cutout for forming an opening for receiving the lock can 17 (the bar 172 and the bar 171) is provided on both or one of the receiving member 222L and the receiving member 22L. Note that the receiving member 222L and the receiving member 221L are an example of a plurality of members arranged so as to surround the lock can 17.

  The shape of the opening 114R and the opening 114L provided in the case 11 is a shape that surrounds the outside of the shape of the lock can 17 as viewed in the Y direction. Therefore, in a state where the receiving members 22R and 22L are detached from the case 11, the lock can 17 can be pulled out of the case 11 through the openings 114R and 114L.

  The electric pointing machine 1 includes a receiving member 23 for guiding the movement of the cam bar 18L and the cam bar 18R. The number of receiving members that guide the movement of the cam bars 18L and 18R is not limited to one, and may be two or more.

  Further, the electric pointing machine 1 includes a receiving member 24T and a receiving member 24H for guiding the movement of the lock piece 19L and the lock piece 19R. Note that the number of receiving members that guide the movement of the lock piece 19L and the lock piece 19R is not limited to two, and may be one or three or more.

  FIG. 4 is a diagram showing the arrangement and shape of the receiving members 23, 24T, and 24H. FIG. 4A is a plan view of the cam bar 18L, the cam bar 18R, the lock piece 19L, the lock piece 19R, the receiving member 23, the receiving member 24T, and the receiving member 24H. FIG. FIG.

  Each of the receiving member 23, the receiving member 24T, and the receiving member 24H is a U-shaped member, and a plurality of U-shaped openings are formed on the inner bottom surface of the case main body 111 in a posture in which the U-shaped opening faces the positive Z direction. It is detachably attached by bolts 25.

  With the operation of the electric pointing machine 1, the operation can 16 that reciprocates linearly, and the receiving members 21R and 21L that guide the movement of the operation can 16 rub against each other and wear. As a result of measurement using a gauge or a sensor, when it is determined that the wear of the receiving member 21R or the receiving member 21L has reached the reference value, the maintenance worker removes these receiving members from the case 11 and replaces the new receiving member with the case 11. By attaching, maintenance work can be completed at the installation site. Also, as a result of measurement with a gauge or a sensor, when it is determined that the wear of the operation can 16 has reached the reference value, the maintenance worker removes the receiving member 21R and the receiving member 21L from the case 11 and removes the old operation can 16 from the case. After being pulled out of the case 11, the new operation can 16 is inserted into the case 11 and arranged at a predetermined position, and the receiving member 21R and the receiving member 21L are attached to the case 11, so that the maintenance work can be completed at the installation site.

  With the operation of the electric pointing machine 1, the lock can 17 that reciprocates linearly, and the receiving members 22R and 22L that guide the movement of the lock can 17 rub against each other and wear. As a result of measurement with a gauge or a sensor, when it is determined that the wear of the receiving member 22R or the receiving member 22L has reached the reference value, the maintenance worker removes these receiving members from the case 11 and replaces the new receiving member with the case 11. By attaching, maintenance work can be completed at the installation site. When the wear of the lock can 17 has reached the reference value as a result of measurement with a gauge or a sensor, the maintenance worker removes the receiving member 22R and the receiving member 22L from the case 11 and removes the old lock can 17. Is pulled out of the case 11, the new lock can 17 is inserted into the case 11, placed at a predetermined position, and the receiving member 22R and the receiving member 22L are attached to the case 11, thereby completing the maintenance work at the installation site. it can.

  The cam bar 18R, the lock piece 19R, the cam bar 18L, and the lock piece 19L that reciprocate linearly with the operation of the electric pointing machine 1, and the receiving members 23, 24T, and 24H that guide the movement thereof are They rub against each other and wear. As a result of measurement with a gauge or a sensor, when it is found that the wear of the receiving member 23, the receiving member 24T or the receiving member 24H has reached the reference value, or the wear of the cam bar 18R, the lock piece 19R, the cam bar 18L or the lock piece 19L. If the maintenance worker is found to have reached the reference value, the maintenance worker once removes the operation can 16 and the lock can 17 from the case 11, then removes the member whose wear has reached the reference value from the case 11, and removes a new member. The maintenance work can be completed at the installation site by attaching to the case 11 and then attaching the operation can 16 and the lock can 17 again to the case 11.

  All of the above-described maintenance work can be completed in a short time by human power at the installation site of the electric point machine 1, so that there is no need to transport the electric point machine 1 or procure substitutes. .

[Modification]
The embodiments described above can be variously modified. Hereinafter, examples of those modifications will be described. In addition, two or more modifications described below may be appropriately combined.

  The shape of the receiving member illustrated in the above-described embodiment is an example, and another shape may be adopted.

  For example, instead of the configuration of the receiving member 21R and the receiving member 21L exemplified in the above-described embodiment, the configuration of the receiving member 21R (one-piece part having a square shape) illustrated in FIG. 5 may be adopted.

  DESCRIPTION OF SYMBOLS 1 ... Electric point machine, 11 ... Case, 12 ... Motor, 13 ... Reduction mechanism, 14 ... Conversion gear, 15 ... Conversion roller, 16 ... Operation can, 17 ... Lock can, 18R / 18L ... Cam bar, 19R / 19L: lock piece, 21R, 21L, 22R, 22L, 23, 24T, 24H: receiving member, 25: bolt, 111: case body, 112: case lid, 113R, 113L, 114R, 114L: opening.

Claims (3)

  An electric pointing machine having a receiving member detachably attached to a case for receiving a reciprocating component and guiding the movement of the component. The electric pointing machine according to claim 1, wherein the receiving member includes a plurality of members arranged so as to surround the component. The said component is an operation | movement can, It has an opening part which can pull out the said operation | movement can from the said case, The said receiving member is attached to the said case so that at least one part of the said opening part may be closed. Or the electric point machine according to 2.

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