JPS6152281B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rail correction device for a track straightening machine that is attached to a track straightening machine having a rail gripping and lifting device and corrects the height, level, and street of the rail.

Conventionally, in order to correct the height and level of the rail with a track straightening machine, as shown in Fig. A rail 5, near the tamping device 1 installed in the
Rail gripping and lifting devices 6 and 6' are provided to grab the heads of rails 5 and 5' and lift up the rails 5 and 5'.
5', the reaction force is generated by the front wheels 2, 2' and the rear wheels 3,
3' was used to correct the height and level deviation of rails 5 and 5'. However, in this case, the fixed bearing distance of the track straightener 4 is limited to a maximum of 4.6 m by regulation, so the rail gripping and lifting devices 6 and 6' can only obtain a small lifting amount, and a larger lifting amount cannot be obtained. When lifting is required, the rail gripping and lifting devices 6, 6' cannot correct the height or level of the rail. Generally, the intermediate lifting amount between two support points of a rail supported at two points is approximately proportional to the distance between the two support points, that is, the square of the span. Therefore, when a larger lifting amount is required, an underframe 8 is provided by extending the front of the mount 7 of the track straightening machine 4, and each rail 5, 5' at the front end of the underframe 8 is At the top, hydraulic cylinders 9, 9' and reaction force receiving devices 11, 11', which are comprised of feet 10, 10' attached to the ends of the rods of the hydraulic cylinders 9, 9', are installed vertically with the rods facing down. , hydraulic cylinders 9, 9'
is activated to lower the feet 10, 10', bring them into contact with the treads of the rails 5, 5', lift the track straightening machine 4 via the underframe 8 and pedestal 7, and lower the front wheels 2, 10'.
2' load is removed and the track straightener 4 is moved to the rear wheels 3,
3' and the reaction force receiving devices 11, 11', and the span between the rear wheels 3, 3' and the reaction force receiving devices 11, 11' is larger than the span corresponding to the fixed wheelbase on the rails 5, 5'. is set, the necks of the rails 5, 5' are grabbed by the rail gripping and lifting devices 6, 6' and the rails 5, 5' are lifted up, thereby increasing the lifting amount of the rails 5, 5'. However, if the rails 5 and 5' have to be lifted with a larger lifting amount due to new line construction, etc., the feet 10 and 10' are stored and grounded on both sides of the track straightener 4. The device 12 is disposed, and its feet 13, 13' are lowered onto the roadbed gravel 14 outside the rails 5, 5', and the rail gripping and lifting device 6,
6' grip the necks of the rails 5, 5', and connect the grounding device 12.
As a result, the rails 5 and 5' are lifted up by a large lifting amount by receiving a lifting reaction force.

Further, in a known track straightening machine in which the tamping device is overhanging in front of the front wheels, the rail gripping and lifting device is also provided near the tamping device overhanging in front of the front wheels.
Therefore, when the rail gripping and lifting device grips the neck of the rail and lifts the rail, a lifting reaction force acts on the portion of the rail gripping and lifting device that engages with the rail neck. Generally, the lifting reaction force is proportional to the lifting amount of the rail, so when the lifting amount increases, the track straightening machine tilts forward due to the lifting reaction force, making it impossible to lift the rail. Therefore, it has been necessary to place a heavy power unit or the like at the rear of the pedestal of the track straightening machine, and in some cases, to attach a balance weight to the rear end of the pedestal. However, there is a limit to how much balance weight can be installed, so if a larger lifting amount needs to be applied to the rail, an underframe must be installed in front of the mount, as in the case of the track straightening machine 4 mentioned above. hand,
A reaction force receiving device is attached to this, and this reaction force receiving device is made to receive the lifting reaction force.If a larger amount of rail is required to be lifted, it is grounded as in the case of the track straightening machine 4 described above. equipment had to be installed.

As described above, the height and level correction device of the conventional track straightening machine requires a rail gripping and lifting device, a reaction force receiving device, and a grounding device, and therefore the structure is complicated and the operation is troublesome. The reaction force receiving device sticks out in front of the track straightening machine, and the grounding device sticks out on the side of the track straightening machine, so they get in the way when transporting the track by truck, and in some cases, they have to be transported disassembled and reassembled on site. There was a drawback that it had to be done. Also,
There is also a system in which the height and level adjustment device is configured by removing the reaction force receiving device and consisting of a rail gripping and lifting device and a grounding device, but in this case, even when the amount of lifting is relatively small, the grounding device is used. This has the disadvantage that the operation is troublesome and the rail correction work takes time.

The present invention provides a rail correction device for a track straightening machine that eliminates the above-mentioned drawbacks regarding height and level correction of a track straightening machine having a rail gripping and lifting device, and can also correct the alignment of the rail. It is.

An embodiment of the present invention will be described below with reference to the drawings.

Fig. 2 is a side view of a track straightening machine equipped with a rail correction device according to an embodiment of the present invention, Fig. 3 is a view in the direction of arrow A in Fig. 2, and Fig. 4 is a view in the direction of arrow B in Fig. 3. It is.

In FIGS. 1 to 4, the same numbers indicate the same members.

In FIGS. 2 to 4, the rail correction device 1
5 is a mounting frame 16 provided at the front end of the mount 7 of the track straightening machine 4, and each rail 5 of the mounting frame 16,
It is mounted rotatably in a plane parallel to the treads of the rails 5, 5' around mounting pins 17, 17' provided directly above the rails 5', and has fixing holes 18, 1.
8', and said arm 1
reaction force receiving grounding devices 20, 20' attached to the front ends of the arms 19, 19', respectively;
Connecting rod 2 that connects the pins 9′ so that they can move in parallel to each other.
1, and a correction hydraulic cylinder 22 that is obliquely and removably attached between the reaction force receiving and grounding device 20 (or 20') and the mounting frame 16.

The mounting frame 16 is provided with fixing holes 23, 24, 23', and 24' on the rails 5 and 5' sides, respectively.
These holes connect the arms 19, 19' to the rails 5,
When rotated to the outside of 5', the arm 19,1
9', and insert the fixing pins 25, 25' into the fixing holes 18, 18', respectively.
It is arranged so that the arms 19, 19' can be fixed in that position.

The reaction force receiving and grounding devices 20, 20' have exactly the same configuration, and include hydraulic cylinders 26, 26', feet 27, 27' attached to the tips of the piston rods of the hydraulic cylinders 26, 26', and mounting seats 28, 2.
8', and is attached to the arms 19, 19' via mounting seats 28, 28' and a plurality of bolts 29, respectively, and operates hydraulic cylinders 26, 26' to raise and lower the feet 27, 27'. be able to. Moreover, one end of the hydraulic cylinder 22 for correcting passage can be fixed to the body of the hydraulic cylinders 26, 26'.

The hydraulic cylinder 22 for track correction is configured to rotate the reaction force receiving and grounding devices 20, 20' and the four mounting pins 17, 17' when the reaction force receiving and grounding devices 20, 20' are positioned directly above the rails 5, 5'. The mounting frame 16, the pedestal 7 and the rail gripper are mounted in the direction of the diagonal of the rectangle formed at the center of the piece, and serve as a spatula to stabilize the shape of the rectangle. Rail 5 of upper device 6, 6',
The alignment of the rails 5, 5' is corrected by moving the rails 5, 5' in the lateral direction via the engaging portion with the rails 5'.

Now, the arms 19, 19' are positioned in the longitudinal direction of the rails 5, 5' so that the centers of the reaction force receiving and grounding devices 20, 20' substantially coincide with the centers of the rails 5, 5'. ' with connecting rod 21 and pin 3
0, and one end of the hydraulic cylinder 22 for correcting the passage is connected to the reaction force receiving grounding device 20' (or 20).
If the other end is rotatably attached to the mounting frame 16 via the mounting pin 17 (or 17'), the reaction force receiving grounding device 2
The shape formed by the four centers of 0, 20' and the mounting pins 17, 17' is rectangular, and in this state the reaction force receiving grounding devices 20, 20' can be used as reaction force receiving devices.

In addition, the connecting rod 21 and the hydraulic cylinder 2 for correction
2 and attach the arms 19, 19' to the rails 5,
5' to the outside, and the fixing holes 18, 18' of the arms 19, 19' are connected to the fixing holes 23, 18' of the mounting frame 16.
23', and fix arm 1 with fixing pins 25 and 25'.
By fixing 9, 19' to the mounting frame 16, the reaction force receiving grounding devices 20, 20' can be used as grounding devices. In addition, when transporting the track straightener 4 by truck, the fixing holes 1 of the arms 19, 19'
8, 18' with the fixing holes 24, 24' of the mounting frame 16, and fix the arms 19, 1 with the fixing pins 25, 25'.
If 9' is fixed to the mounting frame 16, the arms 19,1
Reference numeral 9' is located diagonally rearward of the mounting frame 16, and can eliminate the troublesome forward and sideward protrusions during truck transportation.

Next, the operation of the rail correction device of the track straightening machine having the above-described configuration will be explained.

First, if the height and level deviation of the rails are small and therefore the lifting amount of the rails 5 and 5' is small, the rails 5 and 5' can be lifted up using the rail gripping and lifting devices 6 and 6' as in the past. If the rails 5, 5' are out of alignment, operate the hydraulic cylinder 22 for alignment correction with the rails 5, 5' raised. , 5' are moved laterally by the required amount, and the alignment of the rails 5, 5' is simultaneously corrected. If the height or level of the rail is too large to correct with the rail gripping and hoisting devices 6, 6', use the reaction force receiving and grounding device 2.
The arms 19, 19' are positioned in the longitudinal direction of the rails 5, 5' so that the centers of the arms 19, 20' substantially coincide with the longitudinal centers of the rails 5, 5'.
9 and 19' are connected by the connecting rod 21 via the pin 30, and one end of the hydraulic cylinder 22 for track correction is fixed to the hydraulic cylinder 26' (or 26) of the reaction force receiving and grounding device 20' (or 20). and attach the other end to the mounting frame 1
6 through a pin 17 (or 17'), the reaction force receiving grounding devices 20, 20' are used as reaction force receiving devices. That is, the reaction force receiving grounding devices 20, 2
0' hydraulic cylinders 26, 26' are operated to lower the feet 27, 27' onto the rails 5, 5',
Similar to the conventional reaction force receiving device, the load on the front wheels 2, 2' of the track straightening machine 4 is removed, and the rails 5, 5' are lifted by the required amount by the rail gripping and lifting devices 6, 6'. First, correct the height and level deviation,
If the rails 5, 5' are misaligned, the alignment of the rails 5, 5' is corrected at the same time in the same way as in the case described above. In addition, due to the construction of new lines, Rail 5,
A very large lifting amount is required to correct the height and level of the 5'
0' in the same manner as the conventional reaction force receiving device, if the required lifting amount cannot be obtained, the reaction force receiving and grounding devices 20 and 20' are used as the grounding device. In this case, the connecting rod 21 and the hydraulic cylinder 2 for street correction
2 is removed, and the arms 19, 19' to which the reaction force receiving and grounding devices 20, 20' are attached are rotated to the appearance of the rails 5, 5', respectively, and the arms 19, 1
Align the fixing holes 18, 18' of 9' with the fixing holes 23, 23' of the mounting frame 16, fix the arms 19, 19' to the mounting frame 16 with the fixing pins 25, 25', and then attach the reaction force receiving grounding device 20. , 20' hydraulic cylinder 26,2
6' is operated to lower the feet 27, 27' onto the gravel roadbed and lift the rails 5, 5' by a very large required lifting amount, thereby correcting height and level deviations. In addition, in the case of truck transportation, as described above, the fixing holes 18 and 1 of the arms 19 and 19'
By aligning 8' with the fixing holes 24, 24' of the mounting frame and fixing with fixing pins 25, 25', it is possible to eliminate forward and lateral protrusion.

As described above, the rail correction device for a track straightening machine according to the present invention includes a mounting frame that extends forward from a mount of a track straightening machine having a rail gripping and lifting device, and a mounting pin provided on the mounting frame. A reaction force receiving and grounding device is provided at the front end of each arm that is rotatably mounted around the rail, and the height and level of the rail are corrected by the reaction force receiving and grounding device and the rail gripping and lifting device. In this case, the reaction force receiving and grounding device can be used as a conventional reaction force receiving device or a grounding device by rotating the arm and fixing it in a predetermined position depending on the magnitude of the required lifting amount of the rail. It is not necessary to separately provide a reaction force receiving device and a grounding device, and by providing a hydraulic cylinder for track correction, it is possible to perform track correction at the same time as correcting the height and level of the rail. Therefore, the rail correction device of the track straightening machine of the present invention has a simple structure and is easy to operate, and by rotatably attaching and fixing the reaction force receiving grounding device to the mounting frame, it can be easily operated. This has great effects, such as eliminating obstacles to truck transport caused by the forward extension of the reaction force receiving device or the lateral extension of the grounding device.

[Brief explanation of the drawing]

Fig. 1 is a side view of a track straightening machine equipped with a conventional rail correction device, Fig. 2 is a side view of a track straightening machine fitted with a rail correction device of the present invention, and Fig. 3 is an arrow A in Fig. 2. The perspective view, FIG. 4, is a view taken along arrow B in FIG. 4... Track straightening machine, 6, 6'... Rail gripping device, 7... Frame, 15... Rail correction device,
16...Mounting frame, 17,17'...Mounting pin, 1
8, 18', 23, 23', 24, 24'... Fixing hole, 19, 19'... Arm, 20, 20'...
Reaction force receiving and grounding device, 21... Connection rod, 22... Hydraulic cylinder for street correction, 25, 25'... Fixed pin, 26, 26'... Hydraulic cylinder, 27, 2
7'...foot.

Claims (1)

[Claims] 1. A mounting frame provided at the front end of the mount of a track straightening machine having a rail gripping and lifting device; rotatable in a plane parallel to the rail tread surface around a mounting pin provided on this mounting frame. an arm that is attached and can be rotated to the outside of the rail and fixed to the mounting frame; a hydraulic cylinder that is vertically attached to the front end of each arm with the rod side facing down; and a rod of the hydraulic cylinder; a reaction force receiving and grounding device consisting of a foot attached to the tip; when each of the reaction force receiving and grounding devices is placed directly above the rail, the center of the hydraulic cylinder of each of the reaction force receiving and grounding devices and the center of each of the arms; One end is rotatably attached to the mounting frame via the mounting pin in a diagonal direction of a rectangle formed by the center of the mounting pin, and the other end is fixed to the body of the hydraulic cylinder of the reaction force receiving and grounding device. 1. A rail correction device for a track straightening machine, comprising: a hydraulic cylinder for correction; and a connecting rod that connects each of the arms so as to be movable in parallel.