JP2008308878A - Mortar excavating device for repairing slab track - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mortar excavating device for repairing a slab track requiring reduced load of operation during CA mortar excavation, capable of performing quick operation, and capable of securing stable working efficiency. <P>SOLUTION: This mortar excavating device for excavating mortar between the side edge part of a track slab and a road bed comprises: a vehicle body 10 capable of traveling on the track slab along the side edge part thereof; an electric motor 30 for traveling mounted on the vehicle body for traveling the vehicle body; an electric motor 50 for cutter driving mounted on the vehicle body; and a cutter attached to one lateral side of the vehicle body so that its position can be vertically and laterally adjusted and rotated in a horizontal plane by the electric motor for cutter driving for excavating the mortar between the side edge part of the track slab and the road bed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mortar excavator for repairing a slab track having a structure in which a rail is directly connected to a concrete track slab.

  As shown in FIG. 5, a precast concrete track slab 2 is installed on a concrete roadbed 1 as shown in FIG. 5, and a CA mortar for buffering between the track slab 2 and the roadbed 1 (see FIG. 5). A slab track having a structure in which a cement asphalt mortar) 4 is injected and a rail 3 is fixed on the track slab 2 is employed. In addition, in order to support a lateral load acting on the track slab 2, the CA mortar 6 is also filled between the columnar protrusion 5 erected on the roadbed 1 and the track slab 2.

  In this type of slab track, CA mortars 4 and 6 deteriorate or become fatigued due to external forces such as temperature stress of the rail 3 acting on the track slab 2 and the centrifugal force of the train. Become. Especially in heavy snow areas, the moisture that has soaked from the exposed parts is repeatedly frozen and thawed to accelerate deterioration, so repair is required in a relatively short period of time.

  For example, with respect to repairing the CA mortar 4 on the side edge of the track slab 2, as shown in FIGS. 6 and 7A, the deteriorated portion is first scraped off with the rotary cutter 7 while adjusting the position vertically and horizontally. Then, as shown in FIG. 7B, an operation of filling the repaired material 8 in the shaved portion is performed (see, for example, Patent Document 1).

Conventionally, the thing of patent document 2 is known as CA mortar excavator (it is also called crushing apparatus) used for this kind of repair work. The CA mortar excavator described in Patent Document 2 has a vehicle body that can travel on a slab track, a cutter drive mechanism that is mounted on the vehicle body, and a position that can be adjusted up and down, front and rear, left and right on one side of the vehicle body. And a cutter that is attached and rotated in a horizontal plane by a cutter driving mechanism.
Japanese Patent Laid-Open No. 11-256504 No. 3-36568

  By the way, the conventional CA mortar excavator advances excavation with a cutter while a worker runs the car body by hand, and the driving force for running relies on human power, so a large number of workers are required. There is a problem that it takes time and the stability of work is low.

  In view of the above circumstances, the present invention provides a mortar excavator for slab track repair that can reduce the work load during CA mortar excavation, perform quick work, and ensure stable workability. The purpose is to do.

  The invention of claim 1 is an apparatus for repairing a slab track in which a track slab is installed on a roadbed, a buffering mortar is injected between the track slab and the roadbed, and a rail is fixed on the track slab. In a mortar excavator that scrapes mortar between the side edge of the track slab and the roadbed from the outside of the side edge of the track slab, the vehicle body capable of traveling on the track slab along the side edge of the track slab And a travel drive mechanism mounted on the vehicle body for traveling the vehicle body, a cutter drive mechanism mounted on the vehicle body, and a position of the vehicle body in the lateral direction can be adjusted in the vertical and horizontal directions. And a cutter that scrapes off the mortar between the side edge of the track slab and the roadbed from the outside of the side edge of the track slab by being rotated in a horizontal plane by the cutter driving mechanism. Characterized in that it.

  According to a second aspect of the present invention, in the first aspect of the present invention, the vehicle body is provided with a cutter drive unit support frame that supports the cutter drive mechanism, and the axial direction of the cutter drive unit support frame is directed vertically. A bearing unit is fixed, and the cutter spindle with its axis line directed up and down is rotatably supported by the bearing unit. The cutter is attached to the lower end of the cutter spindle, and the output of the cutter driving mechanism is attached to the upper end of the cutter spindle. It is characterized by connecting shafts.

  According to a third aspect of the present invention, in the second aspect of the present invention, the entire apparatus includes a vehicle body side unit including at least the vehicle body and the travel drive mechanism, at least the cutter, the cutter drive mechanism, and the cutter drive unit. The vehicle side unit and the cutter side unit are divided into two parts, and the horizontal flange portion provided on the cutter side unit is placed from above on the horizontal flange portion provided on the vehicle body side unit. Then, the horizontal flange portions are connected to each other with bolts from above, and can be assembled together.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the vehicle body side unit includes a first base frame fixed to the vehicle body, and a first movable member supported on the first base frame so as to be slidable in the left-right direction. The cutter side unit is provided with a frame and a left-right position adjusting mechanism that is provided between the first base frame and the first movable frame and adjusts the first movable frame in the left-right direction with respect to the first base frame. A second base frame detachably fixed to the first movable frame, a second movable frame supported on the second base frame so as to be vertically slidable, and the second base frame and the second movable frame. And a vertical position adjustment mechanism that is installed between the frame and adjusts the vertical position of the second movable frame relative to the second base frame. The horizontal flange portion is formed in each of the first base frame and the second base frame, and the vehicle body side unit and the cutter side unit are connected to the horizontal flange portion provided on the first movable frame of the vehicle body side unit. (2) The horizontal flange portion provided on the base frame is placed from above and the horizontal flange portions are connected from above with bolts so that they can be assembled together and supported by the second movable frame and the cutter drive unit. The frame is integrally formed.

  The invention according to claim 5 is the invention according to claim 4, wherein, as the cutter driving mechanism, an electric motor is attached to the cutter driving portion support frame with the output shaft facing downward and the axis line vertical. It is characterized by.

  The invention of claim 6 is the invention according to any one of claims 1 to 5, wherein an upper surface of a side edge portion of the track slab on the working side is provided on one side portion of the lower portion of the vehicle body in the left-right direction. At least two rolling wheels are provided apart from each other in the front-rear direction of the vehicle body, and are provided on the other side of the lower part of the vehicle body in the left-right direction and on the rail closer to the side edge of the track slab on the working side. By providing support, at least two traveling mechanisms that balance the vehicle body and travel along the rail are provided apart from each other in the traveling direction of the vehicle body, and each traveling mechanism sandwiches both side surfaces of the rail. A pair of rollers that rotate in a state in which the pair of rollers rotates, and a clamping mechanism that sets the pair of rollers to a position where the rail is clamped or resets the rail to a position where the rail is removed from the rail. Rollers Is a driven roller, to the drive roller, characterized in that the output shaft of an electric motor provided as the travel driving mechanism is coupled.

  The invention according to claim 7 is the invention according to claim 6, wherein the electric motor provided as the wheel and the travel drive mechanism is detachably mounted on the vehicle body side unit and is provided as the cutter drive mechanism. The electric motor is attached to the cutter drive unit support frame in a detachable manner.

  The mortar excavator according to the first aspect of the present invention is capable of self-propelled because the traveling drive mechanism is mounted on the vehicle body. Therefore, push travel by an operator is unnecessary, and labor can be reduced, and the travel speed can be freely adjusted, so that the mortar cutting operation can be performed with stability.

  In the mortar excavator of the invention of claim 2, since the cutter main shaft connecting the output shaft of the cutter driving mechanism and the cutter is rotatably supported by the bearing unit fixed to the cutter driving unit support frame, the cutter driving mechanism, the cutter, Regardless of the distance between them, it is possible to prevent the cutter from rotating. In addition, by providing a gear mechanism or the like between the cutter main shaft and the output shaft of the cutter drive mechanism, the degree of freedom of arrangement of the cutter drive mechanism can be expanded.

  In the mortar excavator of the invention of claim 3, since the entire apparatus is divided into the vehicle body side unit and the cutter side unit, it is possible to divide and carry the carrying work when setting the apparatus on the track slab. That is, the vehicle body side unit can be first carried and set on the track slab, and then the cutter side unit can be carried and assembled to the vehicle body side unit set first. Thus, since the carrying work can be performed separately, the load carried at one time can be reduced, and the number of personnel and labor required for carrying can be reduced.

  In addition, since the horizontal flange part provided on the cutter side unit is placed on the horizontal flange part provided on the vehicle body side unit, both horizontal flange parts are connected with bolts from above, so assembly and removal work can be performed. It can be done easily.

  According to a fourth aspect of the present invention, there is provided a mortar excavator that adjusts the position of the cutter in the left-right direction (first base frame, first movable frame, and left-right position adjustment mechanism) between the vehicle body side unit and the cutter side unit, and the cutter. Since the unit for adjusting the vertical position (second base frame, second movable frame and vertical position adjustment mechanism) is shared, the weight of each unit can be distributed in a well-balanced manner. This can contribute to facilitation.

  In the mortar excavator according to the fifth aspect of the present invention, the electric motor is attached to the cutter driving unit support frame as the cutter driving mechanism with the output shaft facing downward and the axis line in a vertical posture. The cutter drive mechanism can be equipped in a compact form with reduced dimensions. Further, since the electric motor is installed in a vertical position, the cutter unit can be configured as a vertically long unit, and can be transported in a balanced manner by a small number of people.

  Since the mortar excavator of the invention of claim 6 maintains the balance of the vehicle body by the traveling wheel that rolls on the upper surface of the side edge of the track slab and the traveling mechanism that can be supported by one rail and traveled, The vehicle body can be limited to a minimum size. Further, since both sides of the rail are sandwiched by the pair of rollers, there is no fear of wheel removal, and the vehicle body can be stably driven along the rail.

  According to a seventh aspect of the present invention, there is provided a mortar excavating device in which a wheel and an electric motor as a travel drive mechanism are detachably mounted on a vehicle body side unit, and the electric motor as a cutter drive mechanism is detachably attached to a cutter drive unit support frame. Therefore, in addition to the division of the vehicle body side unit and the cutter side unit, by removing and transporting these wheels and the electric motor, it is possible to significantly reduce the number of necessary personnel and labor.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view of a CA mortar excavator of the embodiment, FIG. 2 is a cross-sectional view taken along arrow II-II in FIG. 1, FIG. 3 is a cross-sectional view taken along arrow III-III in FIG. It is sectional drawing which shows the mode of a division | segmentation.

  In this CA mortar excavator, as shown in FIG. 5, a track slab 2 is installed on a roadbed 1 and a buffering CA mortar (cement asphalt mortar) 4 is injected between the track slab 2 and the roadbed 1 to A device for repairing a slab track in which a rail 3 is fixed on a slab 2, and a CA mortar 4 between a side edge of the track slab 2 and a roadbed 1 is disposed on the side of the track slab 2 as shown in FIG. For scraping from the outside of the edge.

  For this purpose, the CA mortar excavator includes a vehicle body 10 that can travel on the track slab 2 along the side edge of the track slab 2, and an electric motor for traveling that is mounted on the vehicle body 10 for traveling the vehicle body 10 ( Traveling drive mechanism) 30, a cutter driving electric motor (cutter driving mechanism) 50 mounted on the vehicle body 10 via a cutter driving unit support frame 42, and a vertical direction and a horizontal direction on one side of the horizontal direction of the vehicle body 10. The CA mortar 4 between the side edge portion of the track slab 2 and the roadbed is moved outside the side edge portion of the track slab 2 by being attached to the track slab and being rotated in a horizontal plane by the electric motor 50 for driving the cutter. And a cutter 60 for scraping from the cutter.

  The vehicle body 10 includes two front and rear beams 11A and 11B extending in parallel in the left-right direction, and a first base frame 12 supported and fixed between the two beams 11A and 11B. As shown in FIGS. 1 and 3, a wheel 21 that rolls on the upper surface of the side edge of the track slab 2 on the working side is attached to one side portion of the lower portion of the vehicle body 10 in the left-right direction. These wheels 21 are detachably provided on the two beams 11A and 11B via the flanges 290, respectively, and are positioned on the lower surfaces of the two beams 11A and 11B, respectively. The front and rear are spaced apart from each other. As shown in FIG. 3, the wheel 21 is provided with a height adjusting screw mechanism 29 capable of adjusting the height of the beams 11A and 11B.

  In addition, the other side of the lower side of the vehicle body 10 is balanced on the vehicle body 10 by supporting the rail 3 closer to the side edge of the track slab 2 on the working side. A traveling mechanism 22 is provided that travels along the rail 3 in a state where it is removed. These traveling mechanisms 22 are also mounted on the two beams 11A and 11B, respectively, so that they are spaced apart from each other in the traveling direction of the vehicle body 10.

  Each traveling mechanism 22 includes a pair of rollers 23A and 23B that rotate while sandwiching both side surfaces of the rail 3, and a small wheel 23C that transmits a load to the rail 3 by riding on the upper surface of the rail 3 (even if it simply slides). And a pinching mechanism 28 for setting the pair of rollers 23 </ b> A and 23 </ b> B to a position where the rail 3 is clamped or reset to a position where the rail 3 is removed.

  The inner roller 23A of each traveling mechanism 22 is rotatably supported by a fixed block 24 fixed to the beams 11A and 11B, and the outer roller 23B is provided so as to be slidable in the left and right directions along the beams 11A and 11B. The slide block 27 is rotatably supported. Each slide block 27 is adjusted in its moving position by turning the handle 28H of the clamping mechanism 28. Accordingly, by moving the slide block 27 and moving the outer roller 23B closer to or away from the inner roller 23A, the rail 3 is sandwiched between the rollers 23A and 23B or released. be able to.

  A roller 23 </ b> A inside one traveling mechanism 22 is configured as a driving roller for traveling, and the shaft 25 of the driving roller 23 </ b> A passes through the upper side of the fixed block 24 as shown in FIG. 3. Then, the output shaft of the traveling electric motor 30 is connected to the upper end of the penetrating shaft 25 through gears 26 and 31, and the traveling electric motor 30 is driven to rotate the driving roller (one roller 23A). Thus, the vehicle body 10 can be driven along the rail 3. The traveling electric motor 30 is detachably attached to the vehicle body 10 together with the gear 31.

  Further, the entire apparatus of the CA mortar excavator is divided into a vehicle body side unit A and a cutter side unit B. The vehicle body side unit A includes at least the vehicle body 10, a traveling electric motor 30, a traveling mechanism 22, wheels 21 and the like. The cutter unit B includes at least a cutter 60, a cutter driving electric motor 50, a cutter driving unit support frame 42, a second base frame 41 described later, and the like.

A first movable frame 13 is supported on a first base frame 12 constituting the vehicle body 10 via a slide guide 15 so as to be slidable in the left-right direction.
The first movable frame 13 is integrated with a rectangular plate-shaped first movable frame main body 13a on the first base frame 12 and a corner portion located at the end on the wheel 21 side and the end on the beam 11A side in the left-right direction. And a bearing plate 13b disposed in parallel to the rail 13 and vertically to the beam 11A.
Between the first base frame 12 and the first movable frame 13, a left-right position adjusting mechanism 14 that is screwed into a screw hole formed in the bearing plate 13b is provided.
The left-right position adjusting mechanism 14 is a screw type, and the position of the first movable frame 13 in the left-right direction can be adjusted by turning a handle 14H attached to the tip of the screw. The vehicle body side unit A includes the first movable frame 13 and the left / right position adjusting mechanism 14.

  The cutter-side unit B has a second base frame 41 that is detachably fixed to the first movable frame 13 and a second movable that is supported on the second base frame 41 via a slide guide 43 so as to be slidable in the vertical direction. A frame (cutter drive unit support frame) 42 is installed between the second base frame 41 and the second movable frame 42, and vertically adjusts the position of the second movable frame 42 relative to the second base frame 41. A position adjusting mechanism 45 is included. Here, the second movable frame 42 is configured integrally with a cutter driving unit support frame (indicated by the same reference numeral 42). The vertical position adjusting mechanism 45 is a screw type, and the vertical position of the second movable frame (cutter driving unit support frame) 42 can be adjusted by turning a handle 45H attached to the tip of the screw. Yes.

  As shown in FIG. 4, horizontal flange portions RA and RB are formed on the first movable frame 13 included in the vehicle body side unit A and the second base frame 41 included in the cutter side unit B, respectively. When the vehicle body side unit A and the cutter side unit B are combined, the horizontal flange portion RA provided on the first movable frame 13 of the vehicle body side unit A is provided on the second base frame 41 of the cutter side unit B. By placing the horizontal flange portion RB from above and connecting the horizontal flange portions RA and RB with bolts from above, both units A and B can be assembled together.

  Further, the cutter driving electric motor 50 is detachably attached to the cutter driving unit support frame (second movable frame) 42 with the output shaft facing downward and the axis line in a vertical posture. The bearing unit 61 is arranged so that its axial direction is directed up and down by being fixed to the cutter driving unit support frame 42. A cutter main shaft 62 whose axis is directed upward and downward is rotatably supported on the bearing unit 61, a cutter 60 is attached to the lower end of the cutter main shaft 62 that penetrates the bearing unit 61, and the cutter driving electric motor 50 is attached to the upper end. Are connected via gears 51 and 63.

Next, the operation will be described.
When the work of scraping off the CA mortar 4 at the side edge of the track slab 2 is performed, first, the vehicle body side divided into two with the wheel 21, the electric motor 30 for traveling and the electric motor 50 for driving the cutter removed. Of the unit A and the cutter unit B, the vehicle body unit A is transported and set on the track slab 2. That is, after carrying the wheel 21 and the traveling electric motor 30 together with the vehicle body side unit A by some workers, the wheels 21 are attached to the vehicle body side unit A and lifted to lift the wheels 21 to the side edges of the track slab 2. Place on the top of the part. Further, the small wheel 23 </ b> C is placed on the upper surface of the rail 3 while the roller 23 </ b> A on the fixed side of the traveling mechanism 22 is brought into contact with the outer side surface of the rail 3.

  Next, the movable roller 23 </ b> B is moved by turning the handle 28 </ b> H of the clamping mechanism 28 and is brought into contact with the inner side surface of the rail 3. By bringing both rollers 23A and 23B into contact with both side surfaces of the rail 3 with an appropriate load, the traveling mechanism 22 can be engaged with the rail 3, whereby the vehicle body 10 is placed on the track slab 2 in a well-balanced manner. Can be set. Thereafter, the traveling electric motor 30 is attached to the vehicle body side unit A.

  Next, after the cutter side unit B is transported together with the electric motor 50 for driving the cutter, the cutter side unit B is lifted by some workers and assembled to the vehicle body side unit A. In that case, as shown in FIG. 4, the horizontal flange portion RB of the second base frame 41 of the cutter side unit B is placed on the horizontal flange portion RA of the first movable frame 13 of the vehicle body side unit A from above, In this state, the horizontal flange portions RA and RB are connected to each other by tightening the bolt 100 from above. Next, the cutter driving electric motor 50 is attached to the cutter side unit B, and the cutter side unit B can be combined with the vehicle body side unit A.

This completes the installation of the CA mortar excavator.
After that, the handle 14H of the left / right position adjustment mechanism 14 and the handle 45H of the vertical position adjustment mechanism 45 are operated to adjust the position of the cutter 60, and the cutter 60 is rotated by driving the electric motor 50 for driving the cutter. The CA mortar 4 is scraped off. Further, by driving the traveling electric motor 30, the vehicle body 10 is caused to travel, and the scraping work is advanced along the side edge portion of the track slab 2.

  As described above, the CA mortar excavator of the present embodiment has the traveling electric motor 30 mounted on the vehicle body 10, so that it can run on its own. Therefore, push traveling by an operator is not necessary, and labor can be reduced, and the traveling speed can be freely adjusted, so that the CA mortar cutting operation can be performed stably.

  Further, since the cutter main shaft 62 that connects the output shaft of the cutter driving electric motor 50 and the cutter 60 is rotatably supported by the bearing unit 61 fixed to the cutter driving unit support frame 42, the cutter driving electric motor 50 is provided. Regardless of the distance between the cutter 60 and the cutter 60, the rotational shake of the cutter 60 can be prevented. Further, since the gears 51 and 63 are provided between the cutter main shaft 62 and the output shaft of the cutter driving electric motor 50, the degree of freedom of arrangement of the cutter driving electric motor 50 can be increased. That is, as shown in FIG. 2, the rotation axis L2 of the cutter driving electric motor 50 can be arranged outside the rotation axis L1 of the cutter 60, and as a result, the position of the cutter driving electric motor 50 can be lowered. become able to.

  Moreover, since the CA mortar excavator of the present embodiment divides the entire apparatus into the vehicle body side unit A and the cutter side unit B, the carrying work when the apparatus is set on the track slab 2 is divided. be able to. That is, it is possible to first carry the vehicle body side unit A and set it on the track slab 2, and then carry the cutter side unit B and assemble it to the vehicle body side unit A that has been previously set. Thus, since the carrying work can be performed separately, the load carried at one time can be reduced, and the number of personnel and labor required for carrying can be reduced. In addition, since the wheel 21, the electric motor 30 for traveling, and the electric motor 50 for driving the cutter are detachably provided, in addition to the disassembly of the vehicle body side unit A and the cutter side unit B, these wheels 21 and motors 30, 50 are provided. By removing and transporting, it is possible to significantly reduce the number of necessary personnel and labor.

  Further, with the horizontal flange portion RB provided on the cutter side unit B mounted on the horizontal flange portion RA provided on the vehicle body side unit A, both the horizontal flange portions RA and RB are connected to each other with a bolt 100 from above. Therefore, assembly and removal work can be easily performed.

  Further, means for adjusting the position of the cutter 60 in the left-right direction (the first base frame 12, the first movable frame 13, and the left-right position adjusting mechanism 14) on the body side unit A and the cutter side unit B; Since the means for adjusting the position in the direction (the second base frame 41, the second movable frame 42, and the vertical position adjusting mechanism 45) are shared, the weights of the units A and B are distributed in a balanced manner. Can contribute to facilitating transportation.

  In addition, since the cutter driving electric motor 50 is attached to the cutter driving unit support frame 42 with the output shaft facing downward and the axis line in a vertical posture, the cutter has a compact shape with a reduced lateral dimension. A driving electric motor 50 can be provided. Further, since the cutter driving electric motor 50 is installed in a vertical posture, the cutter unit B can be configured as a vertically long unit, and can be transported in a balanced manner by a small number of people.

  Further, the CA mortar excavator of the present embodiment balances the vehicle body with the wheel 21 that rolls on the upper surface of the side edge of the track slab 2 and the traveling mechanism 22 that can travel while being supported by one rail 3. Since the vehicle body 10 is held, the vehicle body 10 can be limited to a minimum size. Moreover, since both the side surfaces of the rail 3 are clamped by the pair of rollers 23A and 23B, there is no fear of wheel removal, and the vehicle body 10 can stably travel along the rail 3.

It is a top view of CA mortar excavator of an embodiment of the present invention. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. It is sectional drawing which shows the mode of the division | segmentation of the apparatus at the time of conveyance. It is a perspective view which shows the structure of a slab track. It is sectional drawing which shows the state at the time of repair of CA mortar of a slab track. It is sectional drawing which shows process (a) of repairing CA mortar of a slab track, (b).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Subbase 2 Track slab 3 Rail 4 CA mortar 10 Car body 12 1st base frame 13 1st movable frame 14 Left-right position adjustment mechanism 21 Wheel 22 Traveling mechanism 23A, 23B Roller 28 Clamping mechanism 30 Traveling electric motor (traveling drive mechanism)
41 Second base frame 42 Cutter drive unit support frame (second movable frame)
45 Vertical position adjustment mechanism 50 Electric motor for cutter drive (Cutter drive mechanism)
60 Cutter 61 Bearing unit 62 Cutter spindle 100 Bolt A Car body side unit B Cutter side unit RA, RB Horizontal flange

Claims (7)

A device for repairing a slab track, in which a track slab is installed on the roadbed, a buffering mortar is injected between the track slab and the roadbed, and the rail is fixed on the track slab, the side edge of the track slab In the mortar excavator that scrapes the mortar between the roadbed and the roadbed from the outside of the side edge of the track slab,
A vehicle body capable of traveling on the track slab along the side edge of the track slab;
A travel drive mechanism mounted on the vehicle body for traveling the vehicle body;
A cutter driving mechanism mounted on the vehicle body;
It is attached to one side portion of the vehicle body in the left-right direction so that the position can be adjusted in the vertical direction and the left-right direction, and is rotated in a horizontal plane by the cutter drive mechanism, so that the space between the side edge of the track slab and the roadbed A mortar excavator for repairing a slab track, comprising a cutter for scraping the mortar from the outside of a side edge of the track slab.   A cutter drive unit support frame for supporting the cutter drive mechanism is provided on the vehicle body, and a bearing unit is fixed to the cutter drive unit support frame with the axial direction facing up and down, and the axis line is directed up and down by the bearing unit. 2. The slab according to claim 1, wherein the cutter main shaft is rotatably supported, the cutter is attached to a lower end of the cutter main shaft, and an output shaft of the cutter driving mechanism is connected to the upper end of the cutter main shaft. Mortar drilling equipment for track repair. The entire apparatus is divided into a vehicle body side unit including at least the vehicle body and the travel drive mechanism, and a cutter side unit including at least the cutter, the cutter drive mechanism, and the cutter drive unit support frame.
The vehicle body side unit and the cutter side unit are mounted on the horizontal flange portion provided on the vehicle body side unit from above, and the horizontal flange portions are connected to each other with bolts from above. The mortar excavator for repairing a slab track according to claim 2, wherein the mortar excavator can be assembled integrally. A first base frame fixed to the vehicle body; a first movable frame supported on the first base frame so as to be slidable in the left-right direction; the first base frame and the first movable frame; A left and right position adjustment mechanism that is equipped between the first movable frame and adjusts the position of the first movable frame with respect to the first base frame in the left and right direction
A second base frame detachably fixed to the first movable frame on the cutter side unit; a second movable frame supported on the second base frame so as to be vertically slidable; and the second base frame. And a vertical position adjusting mechanism that is installed between the second movable frame and adjusts the vertical position of the second movable frame with respect to the second base frame,
The horizontal flange portion is formed on each of the first movable frame and the second base frame, and the vehicle body side unit and the cutter side unit are attached to the horizontal flange portion provided on the first movable frame of the vehicle body side unit. By mounting the horizontal flange portion provided on the second base frame of the side unit from above and connecting the horizontal flange portions with bolts from above, it is possible to assemble them integrally.
The mortar excavator for repairing a slab track according to claim 3, wherein the second movable frame and the cutter driving unit support frame are integrally formed.   5. The slab track repair according to claim 3, wherein an electric motor is attached to the cutter drive unit support frame with the output shaft facing downward and the axis line in a vertical posture as the cutter drive mechanism. Mortar drilling rig. At least two wheels that roll on the upper surface of the side edge of the track slab on the working side are provided at one side part in the left-right direction at the lower part of the vehicle body, spaced apart in the front-rear direction of the vehicle body direction,
A traveling mechanism that balances the vehicle body and travels along the rail by taking support on the rail closer to the side edge of the track slab on the working side on the other side portion in the left and right direction of the lower portion of the vehicle body. At least two pieces are provided apart from each other in the longitudinal direction of the vehicle body,
Each of the traveling mechanisms includes a pair of rollers that rotate while sandwiching both side surfaces of the rail, and a pair of rollers that sets the pair of rollers at a position where the rail is clamped or resets the rail to a position where the rail is removed. With a mechanism,
6. At least one roller of all the travel mechanisms is a drive roller, and an output shaft of an electric motor provided as the travel drive mechanism is connected to the drive roller. A mortar excavator for slab track repair according to any one of the above.   The wheel and the electric motor provided as the travel drive mechanism are detachably mounted on the vehicle body side unit, and the electric motor provided as the cutter drive mechanism is detachably attached to the cutter drive unit support frame. The mortar excavator for slab track repair according to claim 6.

Images