JP4456047B2 - Horizontal pulling device for railroad work machine - Google Patents

Description

  The present invention relates to a horizontal pulling device for retracting an orbiting work machine to the outside of a railway in the case of an engine stop, a power unit or a drive device trouble, etc., in an orbiting work machine for performing railway track maintenance work.

  A conventional track-and-rail work machine is provided with a device for emergency escape of the track-and-rail work machine out of the rail when stopped due to a power unit trouble or the like. Another example of a conventional railroad work machine is disclosed in Patent Document 1. The railroad working machine described in Patent Document 1 includes a traveling body for traveling on the ground, a rail traveling drive wheel attached to the traveling body frame, and a rail traveling driven wheel. In addition to the drive wheel and driven wheel, an auxiliary wheel can be moved up and down on the drive wheel side to lift the work machine out of the rail when it stops due to a trouble with the power unit of the machine. When the power unit is stopped, the auxiliary wheel is lowered instead of the driving wheel, the driven wheel and the auxiliary wheel are placed on the rail, and moved to a level crossing that can be escaped by human power or towing by a towing vehicle.

JP-A-5-305804

  Among the above-mentioned conventional railroad working machines, those that prepare an emergency escape device separately from the railroad working machine must be reattached to the railroad working machine at the time of emergency escape, requiring labor and time, There is a problem that storage and installation are troublesome. In addition, as described in the above-mentioned Patent Document 1, the one that moves the track work machine to a place where it can escape when it stops due to a trouble of the power unit is required to move the track work machine out of the rail unless the track work machine is moved to that place. There is a problem that it is impossible to escape and it is difficult to escape quickly.

  In view of the above problems, the present invention provides a lateral pulling of a railroad work machine as an emergency escape means that allows emergency escape to the outside of a railroad work machine due to an engine stop or a power unit trouble, etc., quickly and with little effort. An object is to provide an apparatus.

A horizontal pulling device for a railroad work machine according to claim 1, which protrudes forward and backward from a frame of a ground traveling body and is provided so as to be vertically movable by a driving device;
Rail running wheels attached to the left and right of the vertically moving frame;
In a railroad work machine provided with a horizontal pulling device having a horizontal pulling wheel provided in the vertical motion frame so that the position can be changed,
A bracket that is rotatably attached along the left and right arm portions of the vertical movement frame, and provided with the lateral pulling wheel;
First and second support portions with pin holes, which are provided on left and right arm portions of the vertically moving frame and support the bracket in a raised position when not in use and a lowered position when in use,
The bracket includes first and second opposing portions with pin holes provided corresponding to the pin holes of the first and second support portions ,
A fixing pin is inserted into each pin hole of the first support portion and the first facing portion facing each other at the raised position of the bracket to fix the bracket, and the second facing each other at the lowered position of the bracket. A fixing pin is inserted into each pin hole of the support portion and the second facing portion to fix the bracket ,
The fixing pin has a structure that is attached in a posture in which the head is in the upper position at the raised position and the lowered position of the bracket.

According to the present invention, when put a rail road wheels on the rails are subjected to track maintenance work, and all or part of軌陸working machine by troubles trouble or driving device for an engine stop and the power unit is inoperable In such a case, a laterally traveling member is laid on the rail at a right angle, and a wheel of the lateral pulling device is placed on the laterally traveling member, and the track-and-rail work machine is escaped from the rail using human power. Thus, when the apparatus of the present invention is used, the track-and-rail work machine can be quickly retreated at the place when the trouble occurs. In the present invention, since the horizontal pulling device is always provided in the vertically moving frame, the horizontal pulling device can be easily used without being stored.

In addition, the fixing pin for fixing the bracket provided with the rail running wheel to the vertically moving frame at the raised position and the lowered position is the head of the fixed pin in the mounted state. Due to the mounting structure, the fixed pin in a narrow working space between the vertical movement frame of the rail traveling wheel and the traveling body for mounting the horizontal pulling device is compared with the case where the fixed pin is mounted laterally from the outside. It becomes easy to insert / remove, and the railroad working machine can be retreated more quickly. In addition, since the work space for inserting and removing the fixing pin can be reduced, the width between the vertically moving frame and the traveling body can be reduced . For this reason, the configuration of a rail traveling device such as a vertically moving frame becomes easy, and a rail traveling device advantageous in terms of strength can be realized.

  FIG. 1 is a side view showing a railroad working machine showing an embodiment of a lateral pulling apparatus according to the present invention in a traveling state on a rail while omitting an articulated front, and FIG. 2 is a front view thereof. Reference numeral 1 denotes a rail, 2 denotes a traveling body, and the traveling body 2 has rubber crawlers 4 mounted on the left and right sides of the traveling body frame 3. The crawler 4 is used for traveling on the ground other than the rail 1.

  A revolving unit 6 is installed on a traveling unit frame 3 of the traveling unit 2 via a revolving device 5, and an engine-mounted power unit 7 and a cab 8 are installed on the revolving unit 6. An unillustrated multi-joint front equipped with a work tool such as a bucket is attached to the front portion of the revolving structure 6. The articulated front may be attached to the swing body 6 via a horizontal swing device.

  Reference numeral 10 denotes a vertically moving frame attached to the front and rear of the traveling body frame 3. Each vertical movement frame 10 is rotatably attached so that the base portions of the left and right arm portions 10a move up and down by the expansion and contraction of the hydraulic cylinder 11 around the pin 12 between the left and right crawlers 4 and 4. At the front ends of the left and right arm portions 10a of the vertical movement frames 10, horizontal frames 10b are provided so as to protrude forward and backward from the end portions of the crawler 4, and left and right end portions of these horizontal frames 10b are provided. Wheels 13 for traveling on the rail 1 are attached.

  In addition, although it is comprised so that adjustment of the space | interval between the wheels 13 and 13 according to the structure which prevents the electrical short circuit between rails 1 and 1 by a railroad working machine, and the space | interval between rails 1 and 1, Detailed description is omitted.

  A hydraulic motor 14 that drives the rail traveling wheel 13 is attached to the horizontal frame 10 b of one vertical movement frame 10 among the front and rear vertical movement frames 10. The hydraulic motor 14 and the hydraulic cylinder 11 operate in response to supply of hydraulic oil from the power unit 7 on the swing body 6. Horizontal pulling devices 15 are attached to the left and right of the vertically moving frame 10, respectively.

  3 is a side view showing the horizontal pulling device 15 in a use state, that is, a state in which the horizontal pulling device 15 is lowered, FIG. 4 is a front view thereof, and FIG. 5 is a non-use state, that is, a state in which the horizontal pulling device 15 is raised. FIG. 3 to 5, reference numeral 16 denotes a bracket to which the lateral pulling wheel 17 is attached, 19 denotes a support shaft that rotatably supports the bracket 16, and 20 denotes an outer surface of the arm portion 10a for attaching the support shaft 19. A fixed bracket support portion 21 is a fixing pin for fixing the bracket 16 to the bracket support portion 20.

  As shown in FIG. 6, the bracket support portion 20 includes a bearing portion 22 having a mounting hole 22 a for the support shaft 19, a first support portion 23, and a second support portion 24. The first support portion 23 is provided to support the bracket 16 when the lateral pulling device 15 is not used, and has a pin hole 25 into which the fixing pin 21 is inserted. The second support portion 24 is provided to support the bracket 16 when the lateral pulling device 15 is used, and has a pin hole 26 into which the fixing pin 21 is inserted.

  On the other hand, as shown in FIG. 7, the bracket 16 has a pivot portion 27 having a fitting hole 27 a that is rotatably fitted to the support shaft 19, and the bracket 16 has the first and second lowered positions respectively. The first and second opposing portions 28 and 29 are opposed to the second support portions 23 and 24, respectively. The first and second facing portions 28 and 29 have first and second pin holes 30 and 31 corresponding to the pin holes 25 and 26 of the first and second support portions 23 and 24, respectively. .

As shown in FIGS. 3 to 5, the support shaft 19 is fitted and fixed in the mounting hole 22 a of the bearing 22 of the bracket support portion 20. The bracket 16 is rotatably supported along the outer surface of the arm portion 10a by fitting the fitting hole 27a of the pivoting portion 27 to the support shaft 19 so as to be rotatable. A lateral pulling wheel 17 is attached to the end of each bracket 16 in a lateral direction .

When performing work using this railroad working machine, as shown in FIG. 5, the bracket 16 is lifted so that the first facing portion 28 faces the first support portion 23 of the bracket support portion 20, and the fixing pin 21. Is inserted into the pin holes 25 and 30 provided in the first support portion 23 and the first opposing portion 28, respectively, and the retaining pin 32 is inserted into the hole at the tip of the fixing pin 21, thereby raising the bracket 16 to the raised position. Secure with. At this time, the retaining pin 32 comes into contact with the first facing portion 28 of the bracket 16, thereby preventing the bracket 16 from being lowered.

  In this way, the horizontal pulling device 15 is fixed in the raised position, the hydraulic cylinder 11 is contracted to lift the vertically moving frame 10 from the ground, and the rails 1 and 1 are straddled by the crawlers 4 and 4. Thereafter, the hydraulic cylinder 11 is extended to place the wheel 13 on the rail 1 to the state shown in FIG. 1, and the hydraulic motor 14 attached to the rear vertical motion frame 10 is operated to self-propell the rail 1 to the destination. Moving.

  During the track maintenance work, the engine stopped, the power unit 7 had trouble, some drive units such as hydraulic cylinders and hydraulic motors and related equipment had trouble, and it was necessary to evacuate from the rail. In this case, the horizontal pulling device 15 (bracket 16) is changed to the lowered position. This position change is performed as follows.

  When this position change is made, the engine is operated when the engine mounted on the revolving structure 6 is not stopped, and the sub-engine is operated when the engine is stopped and the sub-engine is mounted. If the sub engine is stopped or not provided, the hydraulic cylinder 11 is extended by the manual pump to raise the revolving structure 5 and the traveling structure 2 to the maximum height.

  Then, the retaining pin 32 of the fixing pin 21 that fixes the bracket 16 of the lateral pulling device 15 to the bracket support portion 20 is removed, and then the fixing pin 21 is removed to release the restraint of the bracket 16. Subsequently, the second opposing portion 29 of the bracket 16 is opposed to the second supporting portion 24, and the fixing pin 21 is inserted into the pin hole 26 of the second supporting portion 24 and the pin hole 31 of the second opposing portion 29. Then, the retaining pin 32 is inserted into the hole at the tip of the fixing pin 21 to fix the bracket 16 at the lowered position where the lateral pulling wheel 17 protrudes downward from the arm portion 10a.

  At this time, in FIG. 3, the rotation of the bracket 16 in the arrow R direction is prevented by the retaining pin 32 coming into contact with the second facing portion 29, and the rotation in the anti-R direction is the first The front end of the facing portion 28 is blocked by coming into contact with the bracket support portion 20, and the bracket 16 is fixed.

  Next, as shown in FIG. 8 and FIG. 9, the rails 1, 1 are placed between the left and right rails 1, 1 and on the outside of one rail 1 below the lateral pulling device 15 and on the side of the rail 1 so as to be orthogonal to the rails 1, 1. The pulling travel members 33 and 34 are laid. Rails, H steel, and the like are used for the horizontal running members 33 and 34.

  Subsequently, the hydraulic cylinder 11 is contracted, and the horizontal pulling wheel 17 is placed on the horizontal pulling traveling member 33 to lift the crawler 4 from the ground. At this time, the rail traveling wheel 13 is also lifted from the rail 1. In this way, the railroad working machine is pushed by the human power, and the lateral pulling wheel 17 is rolled on the horizontal pulling running members 33 to 34 to retreat the railroad working machine from the rail 1.

  As described above, when the apparatus of the present invention is used, when the power unit 7 is stopped due to an engine failure or the like, the railroad work machine can be quickly retreated from the rail 1 at that location. Further, since the horizontal pulling device 15 is always provided in the vertically moving frame 10, it is possible to easily use the horizontal pulling device 15 without requiring storage.

  In addition, the fixing pin 21 has a mounting structure as a vertical pin with a fixing pin head portion (a retaining portion) 21a on top, so that the fixing pin 21 can be inserted / removed as compared with the case where the fixing pin 21 is mounted laterally from the outside. Therefore, the working space for the vehicle can be reduced, and the fixing pin 21 can be easily inserted and removed in the narrow width W (see FIG. 2) between the vertical motion frame 10 and the traveling body 2, and the track work machine can be retreated more quickly. it can. In addition, since the width W can be reduced, the configuration of the rail travel device such as the vertically moving frame 10 is facilitated, and a rail travel device advantageous in terms of strength can be realized.

It is a side view which shows one embodiment of this invention about the case where a railroad working machine is a rail driving | running | working possible state. It is a front view of FIG. It is a side view which shows the horizontal pulling apparatus of this Embodiment in the use condition of a horizontal pulling apparatus. FIG. 4 is a front view of FIG. 3. It is a side view which shows the horizontal pulling apparatus of this Embodiment in the non-use state of a horizontal pulling apparatus. It is a side view of the bracket support part which comprises the horizontal pulling apparatus of this Embodiment. It is a side view of the bracket which comprises the horizontal pulling apparatus of this Embodiment. In this Embodiment, it is a side view which shows the evacuation operation state by a horizontal pulling apparatus. It is a front view of FIG.

1: rail, 2: traveling body, 3: traveling body frame, 4: crawler, 5: turning device, 6: turning body, 7: power unit, 8: cab, 10: vertical motion frame, 10a: arm portion, 10b : Horizontal frame, 11: Hydraulic cylinder, 12: Pin, 13: Rail running wheel, 14: Hydraulic motor, 15: Horizontal pulling device, 16: Bracket, 17: Horizontal pulling wheel, 19: Support shaft, 20: Bracket Support part, 21: fixed pin, 22a: mounting hole for spindle, 22: bearing, 23: first support part, 24: second support part, 25, 26: pin hole, 27a: fitting of spindle Hole, 27: Pivoting portion, 28: First facing portion, 29: Second facing portion, 30, 31: Pin hole, 32: Retaining pin, 33, 34: Horizontally traveling member

Claims (1)

A vertically moving frame that protrudes forward and backward of the frame of the ground traveling body and is provided so as to be vertically movable by a driving device;
Rail running wheels attached to the left and right of the vertically moving frame;
In a railroad work machine provided with a horizontal pulling device having a horizontal pulling wheel provided in the vertical motion frame so that the position can be changed,
A bracket that is rotatably attached along the left and right arm portions of the vertical movement frame, and provided with the lateral pulling wheel;
First and second support portions with pin holes, which are provided on left and right arm portions of the vertically moving frame and support the bracket in a raised position when not in use and a lowered position when in use,
The bracket includes first and second opposing portions with pin holes provided corresponding to the pin holes of the first and second support portions ,
A fixing pin is inserted into each pin hole of the first support portion and the first facing portion facing each other at the raised position of the bracket to fix the bracket, and the second facing each other at the lowered position of the bracket. A fixing pin is inserted into each pin hole of the support portion and the second facing portion to fix the bracket ,
The lateral pulling device for a railroad work machine, wherein the fixing pin has a structure in which the head is mounted in an up position and a lowered position of the bracket.

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