JPS6339724B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a track straightening machine that straightens the level and street of a track while running on a rail.

Fig. 1 is a side view of a known track straightening machine, Fig. 2 is a plan view of Fig. 1 viewed from the direction of arrow A, and Fig. 3 is a side view of a known track straightening machine.
It is an enlarged view of the figure seen from the B arrow direction.

In the figure, a known track straightening machine 2 that straightens the level and street of the track while traveling on rails 1 and 1' has a front axle 3, a front wheel 4 attached to the front axle 3, 4', a rear axle 5, rear wheels 6, 6' attached to the rear axle 5, a front axle 3,
An underframe 9 is supported on the front axle 4, 4' and the rear wheels 6, 6' via the rear axle 5 and bearings 7, 7', 8, 8'.
and a frame 10 provided on the top of this underframe 9.
, tamping devices 11, 11' provided between the front wheels 4, 4' and rear wheels 6, 6'; Rail gripping device 12, 12'
and an underframe lifting device 1 attached to the front part of the underframe 9.
3, 13', and the power plant 14 mounted on the underframe 9.
It is comprised of a power transmission device, a height detection device, a street detection device, a lateral movement device, a control device, an operating device, etc. (not shown).

As shown in FIG. 3, the rail gripping device 12', which is provided on the rail 1' side symmetrically to the rail gripping device 12 with respect to the center line of the rail gripping device 12 and the underframe 9, is fixed to the underframe 9. The catch levers 16, 1 are rotatably supported on the mounting seats 15, 15'.
Catching roller 1 rotatably attached to 6'
7, 17' and is rotatably attached to the underframe 9,
Move the catch rollers 17, 17' to the catch lever 1.
6, 16' to the lower ends of the heads of the rails 1, 1', or release the engagement and release the catch lever 1.
Hydraulic cylinder 1 that accommodates catch rollers 17, 17' above rails 1, 1' via 6, 16'
It consists of 8,18'.

During straightening work, the catch rollers 17, 17' are lowered by the hydraulic cylinders 18, 18' so that they can engage with the lower ends of the heads of the rails 1, 1', and during forwarding, the catch rollers 17, 17' are moved by the hydraulic cylinders 18, 18'. 1
It is pulled up above the rails 1, 1' by 8' and stored and held within the limits of the vehicle.

The underframe lifting devices 13, 13' also include hydraulic cylinders 19, 19', and hydraulic cylinders 19, 19'.
It consists of grounding fittings 20, 20' attached to the tip of the piston rod 9' so as to be movable up and down.
These grounding fittings 20, 20' are connected to the underframe 9 so that they can be grounded either on the upper surface of the rails 1, 1' or on the track bed.
It may be fixedly attached to the underframe, or it may be attached movably in a direction perpendicular to the longitudinal direction of the underframe so that it can be grounded either on the upper surface of the rails 1, 1' or on the track bed. In the conventional example shown in FIGS. 1 to 3, the underframe hoisting devices 13, 13' are fixedly attached to the underframe 9, and the grounding fittings 20, 20' are grounded on the track bed. ing. Further, during forwarding, the grounding metal fittings 20, 20' are pulled up above the rail and stored and held within the limits of the vehicle.

In order to perform level and track alignment of the track using the track alignment machine 2 having the above configuration, the track alignment machine 2 is stopped at the position where the track should be aligned, and the operation device is used to start the alignment work. When a command is given, the rail gripping device 1 is first activated by a signal from the height detection device.
2, 12' hydraulic cylinders 18, 18' are activated,
The catch rollers 17, 17' are lowered to engage the lower ends of the heads of the rails 1, 1'. Next, the underframe lifting device 13,1
3' hydraulic cylinders 19, 19' operate, grounding the grounding fittings 20, 20' on the road bed, and grounding the front wheels 4, 20'.
4' is transferred to the underframe lifting device 13, 13', and the external force acting on the track straightening machine 2 is transferred to the underframe lifting device 1.
3, 13' and rear wheels 6, 6'. Thereafter, using the rear wheels 6, 6' as fulcrums, the front parts of the underframe 9 are lifted on the left and right sides simultaneously or separately by the underframe lifting devices 13, 13', and the rail gripping device 1 is lifted up.
The rails 1 and 1' engaged with the rails 2 and 12' are simultaneously or separately lifted by a predetermined amount to correct the height level of the track. At the same time, the lateral movement device is actuated by a signal from the street detection device, and the rail 1, which is being picked up by the rail gripping device 12, 12',
1' is moved laterally by a predetermined amount to correct the trajectory. Once the track level and street have been corrected as described above, the road bed gravel on the underside of the sleepers is compacted by the tamping devices 11 and 11', completing the level and street level adjustment at the position where the track should be leveled. do.
When forwarding the track straightener 2, use the rail grip 1
By operating the hydraulic cylinders 18 and 18' of 2 and 12', the catch rollers 17 and 17' and the rails 1 and
1', and the catch rollers 17,
17' is pulled up above the rails 1, 1' and stored and held within the vehicle limit, and the underframe lifting device 13, 1
Activate the hydraulic cylinders 19, 19' at 3' to pull the grounding fittings 20, 20' above the rails 1, 1' and keep them within the limits of the vehicle, then run the track straightening machine 2. That's fine.

However, the above-mentioned known track straightening machine 2 only has a pair of rail gripping devices 12, 12' near the front wheels 3, 3' in the vicinity of the tamping devices 11, 11'. When lifting, the catch roller 17 of the rail gripping device 12, 12'
If the position where the catch rollers 17' engage with the rails 1, 1' is at the joint between the rails 1, 1', the catch rollers 17,
17' cannot engage with the lower ends of the heads of the rails 1, 1', and the track at the joint cannot be adjusted. For this reason, it is necessary to continue the straightening work by skipping the joint part, and to straighten the joint part separately with a hand-held tie tamper, etc., which reduces work efficiency and causes uneven work accuracy. There were flaws. Also, when the joint of the rails 1, 1' comes between the front wheels 4, 4' and the rear wheels 6, 6', the rails 1, 1'
1' with the rail gripping devices 12, 12',
When the rails 1 and 1' are lifted up by the underframe lifting devices 13 and 13', the joint part is continuous with a joint plate, so the rigidity is different from that of other rail parts, so the rail 1 is lowered at the joint part. , 1' becomes discontinuous. Therefore, there was a drawback that the correct lifting amount could not be obtained, resulting in uneven working accuracy. Also,
In straightening the curved part of the track, when repeatedly straightening the same section in order to smoothly straighten the curved track, the above-mentioned known track straightening machine 2 is used.
Since the straightening work can only be carried out in the forward direction, the track straightening machine 2 must be moved back to the starting point of the first straightening work and the straightening work must be performed again, which saves time in the straightening work. The disadvantage was that the hanging work efficiency decreased.

The present invention has been made to eliminate the above-mentioned drawbacks, and by providing a pair of rail gripping devices before and after the tamping device of a track straightening machine, the present invention can be used both forward and backward, regardless of the joint of the rail. Another object of the present invention is to provide a track straightening machine that can perform track level and track straightening work even when facing backwards, and has high work efficiency and work accuracy.

Next, one embodiment of the present invention will be explained in detail with reference to the drawings.

FIG. 4 is a side view of a track straightening machine according to an embodiment of the present invention, FIG. 5 is a plan view of FIG. 4 viewed from the direction of arrow C,
FIG. 6 is an enlarged view seen from the direction of arrow D in FIG. 4.

The same numbers in FIGS. 1 to 6 indicate the same members.

In Figures 4 to 6, the track straightener 21
A new pair of rail gripping devices 22,
22' is provided, the above-mentioned known track straightening machine 2 is used.
It has the same configuration as . That is, the track straightener 21
The front axle 3, the front wheels 4, 4' attached to the front axle 3, the rear axle 5, the rear wheels 6, 6' attached to the rear axle 5, the front axle 3, the rear axle 5 and front wheels 4 through bearings 7, 7', 8, 8'.
4' and an underframe 23 supported by the rear wheels 6, 6';
Frame 10 provided on the top of this underframe 23
, a tamping device 11, 11' provided between the front wheels 4, 4' and the rear wheels 6, 6', and a tamping device 11, 11' provided near the front wheels 3, 3' near the tamping device 11, 11'. rail gripping devices 12, 12';
In the vicinity of the tamping devices 11, 11', the rear wheels 6,
Rail gripping device 22, 2 provided near 6'
2', an underframe lifting device 13, 13' attached to the front part of the underframe 23, a power unit 14 mounted on the underframe 23, a power transmission device, and a height level detection device (not shown). , a street detection device, a lateral movement device, a control device, an operating device, etc. Rail gripping devices 12, 12' and underframe lifting device 13,
13' has exactly the same configuration as that of the known track straightening machine 2. Rail gripping device 22 and underframe 23
A rail gripping device 22' provided on the rail 1' side symmetrically with the rail gripping device 22 with respect to the center line of
As shown in the figure, the mounting seat 2 is fixed to the underframe 23.
The catch rollers 26, 26' are rotatably attached to the catch levers 25, 25', which are rotatably supported by the catch levers 25, 24'. , 25' to the lower end of the head of the rails 1, 1', or release the engagement and connect the catch roller 2 to the lower end of the head of the rail 1, 1' via the catch levers 25, 25'.
6, 26' are housed above the rails 1, 1' by hydraulic cylinders 27, 27'.

Next, the operation of the track straightener 21 having the above configuration will be explained.

If the catch rollers 17, 17' of the rail gripping devices 12, 12' do not come into contact with the joints of the rails 1, 1', only the rail gripping devices 12, 12' are used, and the above-mentioned track straightening machine 2 As in the case of , perform the trajectory adjustment work facing forward. And the catch rollers 17, 1 of the rail gripping devices 12, 12'
7' comes into contact with the joint between the rails 1, 1' and cannot be engaged with the rails 1, 1', only the rail gripping devices 22, 22' are operated and the hydraulic cylinder 2
7, 27' to lower the catch rollers 26, 26' to engage the lower ends of the heads of the rails 1, 1',
The right and left sides of the underframe 23 are simultaneously or separately lifted by the underframe lifting devices 13 and 13', and the rails 1 and 1' are lifted simultaneously or separately to continuously perform track straightening work. In this case, the rail gripping device 12,1
2' and the rail gripping devices 22, 22', if the distance between the centers is smaller than the distance between the shortest joints of the rails 1, 1', the rail gripping devices 12, 12'
and the rail gripping devices 22, 22' do not come into contact with the joint of the rails 1, 1' at the same time. Also, when the joint of the rails 1, 1' comes between the front wheels 3, 3' and the rear wheels 5, 5', the rail grip 12,
12' and the rail grips 22, 22' are engaged with the rails 1, 1', and when the rails 1, 1' are lifted up by the underframe lifting devices 13, 13', the rails 1,
1' is lifted at two points across the joint, so discontinuity in the amount of lifting at the joint can be avoided.

Further, the direction from the tamping devices 11, 11' to the front wheels 4, 4' is a straightened track, the rear wheels 6,
Assuming that the track in the direction 6' is unaligned, the rail gripping devices 22, 22' are engaged with the rails 1, 1', the underframe lifting devices 13, 13' are grounded on the track bed, and the front wheels 4 , 4' are transferred to the underframe lifting devices 13, 13', and the external force acting on the track straightening machine 21 is supported by the underframe lifting devices 13, 13' and the rear wheels 6, 6'.
The right and left sides of the front part of the underframe 23 are simultaneously or separately lifted by the underframe lifting devices 13 and 13', and the rail 1 is lifted up.
1' at the same time or separately, the rails 1,
Correct the height level of rail 1', and at the same time correct the street of rails 1 and 1' using a street detection device and a lateral movement device,
The tamping devices 11 and 11' compact the roadbed gravel on the lower surface of the sleepers, and the level and track alignment of the track is performed. Track alignment work can be performed while the track alignment machine 21 runs backwards. . In this case, the rail gripping devices 22, 22' are connected to the rail 1,
1', the rail gripping device 12,
12', when the joint of the rails 1, 1' is between the front wheels 4, 4' and the rear wheels 6, 6', the rail gripping devices 12, 12' and the rail gripping devices 22, 2
Lifting up the rails 1, 1' using both rails 2' is the same as the above-mentioned case of straightening the track in the forward direction. Therefore, when straightening the same section repeatedly in the straightening work of the curved part of the track, the track straightening machine 21 can perform the straightening work both forward and backward, so that the first work starts each time. There is no need to go back to the point and perform further straightening work forward.

As described above, the track straightening machine of the present invention uses the underframe lifting device provided at the front of the underframe and the rail gripping devices provided in pairs before and after the tamping device to control one rail. When the gripping device comes into contact with the joint of the rail, another rail gripping device is engaged with the rail, the rail is lifted up by the underframe lifting device, and the track is continuously straightened both forward and backward. When the work can be carried out and the joint of the rail is between the front and rear wheels, both rail gripping devices are engaged with the rail and the rail is lifted by the underframe lifting device. Discontinuity in the lifting amount at the rail joint can be avoided. Therefore, it is possible to continuously straighten the track regardless of the rail joints, and unlike known track straightening machines, the rail joints are skipped and the joints are manually corrected later. There is no need for alignment, and work efficiency and work accuracy can be improved. In addition, when straightening the same section repeatedly in straightening work on curved sections of the track, straightening work can be performed continuously both forward and backward, greatly improving work efficiency and accuracy. It has great effects, such as being able to improve performance.

[Brief explanation of the drawing]

Fig. 1 is a side view of a known track straightening machine, Fig. 2 is a view taken in the direction of arrow A in Fig. 1, Fig. 3 is a view taken in the direction of arrow B in Fig. 1,
4 is a side view of one embodiment of the present invention, FIG. 5 is a view taken along arrow C in FIG. 4, and FIG. 6 is a view taken along arrow D in FIG. 4. 1, 1'...Rail, 4, 4'...Front wheel, 6,
6... Rear wheel, 11, 11'... Tamping device,
12, 12', 22, 22'...Rail gripping device,
13, 13'...Underframe lifting device, 18, 18', 1
9, 19', 27, 27'...Hydraulic cylinder, 1
7, 17', 26, 26'...Catch roller, 2
0,20'...Grounding metal fitting, 21...Track adjustment machine,
23...Underframe.

Claims (1)

[Claims] 1. In a track straightening machine that has a tamping device between the front wheel and the rear wheel and adjusts the level and street of the track while running on the rail, rail gripping devices are installed before and after the tamping device, respectively. A track straightening machine, further comprising: an underframe lifting device provided at the front of the underframe of the track straightening machine.