JPH0111768Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is attached to a multiple tamper that performs trackbed tamping work on railway tracks, and adjusts the opening and closing interval of the tamping tool according to the arrangement of sleepers or the spacing of sleepers at the joints of track rails, etc. The present invention relates to an automatic tamping tool opening/closing interval switching device that can automatically switch.

Generally, on a railroad track, the arrangement of sleepers and the spacing between the sleepers are different between a seamless portion of the rail and a joint portion. That is, as shown in FIG. 1, in the seamless part of the rail 1, the sleepers 2
However, at the rail joint, the sleepers are arranged so that the joint 3 of the rails 1, 1 is roughly spaced between the two sleepers 4, 4', as shown in Figure 2. As shown in Figure 3, the hanging joint placed in the center and the joint 3 of rails 1 and 1' are placed on the upper surface of adjacent sleepers 5 and 5' or on one wide sleeper. There are two types of supported joints. Then, the spacing between the sleepers 44' in the case of the above-mentioned splicing is as follows:
The spacing between the sleepers 2, 2 other than the joint is made much smaller.

Normally, when performing trackbed compaction work using multiple tympers, in areas of the track where there are no rail joints and sleepers are arranged at approximately equal intervals (hereinafter referred to as standard arrangement), as shown in Figure 1. , the tamping tools (hereinafter abbreviated as tools) 6 and 6' provided oppositely are opened at a predetermined interval,
After placing the sleeper 2 approximately in the center between the tools 6 and 6', push the tools 6 and 6' into the track bed 7,
The tools 6, 6' are closed to a predetermined distance so as to sandwich the sleepers 2, and the lower surface of the sleepers 2 is filled with trackbed gravel.Then, the tools 6, 6' are pulled up to a predetermined height from the trackbed 7, and the multiple titan Pa,
The railroad ties are moved to the position where the next tamping is to be performed, completing one cycle of bed tamping work. Therefore,
In areas of the track where sleepers are standardly arranged, it is possible to keep the opening/closing interval of the tools 6 and 6' constant and perform continuous track bed compaction work as described above. At joints, as mentioned above, the sleeper arrangement or sleeper spacing differs depending on the type of joint, etc., so in order to compact the track bed at the joint of track rails, it is necessary to use a method that matches the sleeper arrangement or sleeper spacing. Therefore, it is necessary to adjust the opening/closing interval of the tools 6, 6' while considering the type of seam.

Now, the predetermined spacing of the tool when the tool is opened to push the tool into the trackbed, and the predetermined spacing of the tool when the tool is closed to push the tool into the trackbed and fill the bottom surface of the sleepers with trackbed gravel. The opening and closing interval of the tools 6 and 6' with respect to the standard arrangement of sleepers shown in FIG. 1 is defined as a standard opening and closing interval, and the standard opening and closing limits are defined as a ₁ and b ₁ , respectively. In addition, the opening/closing interval of the tools 6, 6' relative to the sleeper arrangement or the sleeper spacing in the case of a splicing of the rails 1, 1 shown in Fig. 2 is defined as the splicing opening/closing interval, and the splicing opening limit is
Let b ₂ be the a _2- splice closure limit. In addition, the opening/closing interval of the tools 6, 6' with respect to the sleeper arrangement or sleeper spacing in the case of supporting joints of the rails 1, 1 shown in FIG. 3 is defined as the supporting joint opening/closing interval, and the supporting joint opening limit is a ₃ ,...
Let the support joint closure be b ₃ . In such a case, there is usually a relationship such that a ₃ > a ₁ > a ₂ for the opening limits of the tools 6, 6', and b ₃ > b ₂ = b ₁ for the closing limits of the tools 6, 6'.

Therefore, when performing tamping work on the track bed using a multiple tie tamper, the opening limit and the opening limit of the tool should be adjusted in accordance with the sleeper arrangement or the sleeper spacing in areas where there are no rail joints on the track and at rail joints. The closing limit must be changed. However, in the past, the opening and closing limits of this tool had to be changed by multiple tamper workers visually and through trial and error, so the track bed tamping work was done by holding the joints of the rails together. In this case, it took time to change the opening and closing limits of this tool, resulting in a reduction in work efficiency.

The present invention was made to eliminate the above-mentioned drawbacks, and when performing track bed tamping work using a multiple tamper, the opening/closing interval of the tamping tool is adjusted to correspond to the track sleeper arrangement or the sleeper spacing. To provide an automatic tamping tool opening/closing interval switching device that automatically switches as necessary to shorten the time required to change the opening/closing interval of a tamping tool and improve work efficiency in track bed tamping work. .

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

Fig. 4 is a block diagram of the tamping tool opening/closing interval automatic switching device of the present invention, Fig. 5 is a front view of the tamping device, Fig. 6 is a view taken in the direction of the arrow in Fig. 5, and Fig. 7 is the bed tamping sequence. FIG. 8 is a plan view of the detection switching device, FIG. 9 is a circuit diagram of the control section of the detection switching device, and FIG. 10 is a block diagram of the opening/closing interval setting control device.

As shown in FIG. 4, the tamping tool opening/closing interval automatic switching device 8 of the present invention includes a detection switching device 9.
and an opening/closing interval setting control device 10, and each device is connected to a tamping control device 11, respectively.

The tamping control device 11 controls the tamping device 12 of the multiple tamper shown in FIG. 5, and normally controls the tamping device 12 according to the bed tamping sequence block diagram shown in FIG. . The tamping device 12 is a multiple tamper truck 1.
A frame 14 is installed directly above the rail No. 3, and a total of four sets are arranged approximately in the center of this frame 14, one on the outside and one on the outside of the gauge, and are composed of a tamper support mechanism 15, a tamper opening/closing mechanism 16, and a tamper vibration mechanism 17. ing. The tamper support mechanism 15 includes a guide rod 18
A tamper cylinder 19 is attached to be movable in the vertical direction along the guide rod 18, and a hydraulic cylinder is fixed to the frame 14 at the lower part and to the tamper cylinder 19 at the upper part, and moves the tamper cylinder in the vertical direction. 20 and a vertical detection mechanism 21. The vertical detection mechanism 21 uses an intermediate stop proximity switch 22 attached to the top of the frame 14 and an intermediate stop cam 23 adjustable to the top of the tamper cylinder 19 to ensure that the tools 6, 6' are moved upward from the middle of the track bed. A lower limit proximity switch 24 attached to the lower part of the frame 14
Then, the lower limit cam 25 attached to the lower part of the tamper cylinder 19 detects the position where the tools 6, 6' are thrust into the trackbed and reach a predetermined depth from the top of the trackbed, that is, the lower limit position. be. The tamper opening/closing mechanism 16 is provided on the upper part of the tamper support mechanism 15,
A hydraulic motor 26, bearing boxes 27 and 28, a threaded shaft 29 having a right-handed threaded portion and a left-handed threaded portion driven by the hydraulic motor 26, and a feed nut 30 that is threadedly engaged with the threaded portion of this threaded shaft 29, respectively. , 30′ and
It consists of a tool opening/closing interval detection device 31. The tool opening/closing interval detection device 31 detects the tool opening/closing interval corresponding to the arrangement of sleepers on the track or the interval between the sleepers. A plurality of detectors, for example, proximity switches 33, 33'', 34, 34'', 3, are attached to 32' so that their mounting positions can be adjusted.
5, 35'' and cams 36, 36' provided at the upper part of the feed nuts 30, 30'. ' and tool 6 at the bottom end,
Opposing vibration yokes 3 with removably attached 6′
The vibration yoke 38, 38' consists of
Attach the approximately center part to the tamper body 19, and attach the pins 39, 3
9', and its upper part is rotatably mounted to feed nuts 30, 30'.

Therefore, when the tamping device 12 rotates the hydraulic motor 26, the feed nuts 30, 30' move toward each other or away from each other along the screw shaft 29, depending on the direction of rotation. This movement of the feed nuts 30, 30' causes the vibration yoke 38,
38' rotates around pins 39, 39';
The rotational movement opens and closes the tools 6, 6' attached to the tips of the tools, and the opening and closing intervals of the tools 6, 6' are determined by the threaded shafts of the feed nuts 30, 30'.
9 can be detected from the moving distance in the longitudinal direction. That is, as shown in FIG.
Cams 36, 3 corresponding to the standard closing limit, suspended joint closing limit, suspended joint opening limit, supported joint opening limit, and supported joint closing limit of
At position 6', proximity switches 33, 33'', 34,
34'', 35, 35'' are adjusted and fixed, and the gap between each of the proximity switches and cams 36, 36' is adjusted, then the proximity switches 33, 33'', 34,
34'', 35, and 35'', it is possible to detect the opening/closing interval of the tools 6, 6' corresponding to the sleeper arrangement or the sleeper spacing depending on the presence or absence of rail joints. And proximity switches 33, 33″, 34, 34″,
Detection signals from 35 and 35'' are output to the tamping control device 11, respectively.The tamper vibration mechanism 17, together with the tamper cylinder 19, is connected to the hydraulic cylinder 2.
0, the tools 6, 6' move in the vertical direction, and when they reach the lower limit position, the lower limit proximity switch 24 and the lower limit cam 25 detect the lower limit position of the tools 6, 6'. Tool 6,
When the tools 6' are pulled up from the track bed and reach the intermediate stop position, the intermediate stop proximity switch 22 and the intermediate slack stop cam 23 detect the intermediate stop position of the tools 6, 6'. The detection signals from the lower limit proximity switch 24 and the intermediate stop proximity switch 22 are output to the tamping control device 11, respectively.

Next, a case in which the tamping device 12 is controlled by the tamping control device 11 will be described with reference to FIG. 7 in the case where the sleeper positions are in the standard arrangement. a vibrating tool 6 opened to the standard opening limit of the tamping device 12;
6' so that the sleeper is located in the middle,
Thereafter, the tamper vibration mechanism 17 is lowered by the hydraulic cylinder 20 of the tamper support mechanism 15 and thrust into the trackbed, and when the tools 6, 6' reach the lower limit position in the trackbed, the lower limit proximity switch 24 of the up/down detection mechanism 21 is activated. When detected, the downward movement of the tools 6, 6' is stopped. Next, the tamper opening/closing mechanism 1
6 to start the closing movement of the tools 6, 6', and the tools 6, 6' close while filling the lower surface of the railroad ties with roadbed gravel, and the tool opening/closing interval detection device 31 detects that the closing limit has been reached. Once detected by the standard closing proximity switch 33, the closing movement of the tools 6, 6' is stopped. Next, the hydraulic cylinder 20 of the tamper support mechanism 15 is activated to raise the tools 6, 6' from within the trackbed, and when the tools 6, 6' reach the intermediate stop position, the up/down detection mechanism 21 detects that the tools 6, 6' have reached the intermediate stop position. Once detected by the proximity switch 22, the upward movement of the tools 6, 6' is stopped. Next, operate the tamper opening/closing mechanism 16 to open the tools 6, 6'.
When the standard opening limit proximity switch 33'' of the tool opening/closing interval detection device 31 detects that the opening of the tools 6, 6' has reached the standard opening limit, the opening of the tool is started. The movement is stopped. In this way, one cycle of bed tamping work is completed. When performing bed tamping work while repeating this work cycle, the sleeper arrangement or sleeper spacing may change from the standard arrangement during the work. The tool opening/closing interval automatic switching device 8 of the present invention is used when changing to a suspended joint arrangement or a supported joint arrangement at a rail joint portion, or from a suspended joint arrangement or a supported joint arrangement at a rail joint portion to a standard arrangement.
By inserting the signal from the tool between the intermediate stop of the tool and the opening of the tool in the bed tamping sequence block diagram shown in FIG. Can be switched.

Next, the tool opening/closing interval automatic switching device 8 will be explained. The tool opening/closing interval automatic switching device 8 consists of a detection switching device 9 and an opening/closing interval setting control device 10.

As shown in FIGS. 8 and 9, the detection switching device 9 includes an operation panel 40, and a control section 41 and an operation section 42 provided on the operation panel 40. As shown in FIG. 9, the control unit 41 includes a main changeover switch 43, a standard open/close interval changeover switch 44 (hereinafter abbreviated as changeover switch 44) connected in series to the main changeover switch 43, respectively.
It is connected in series to a continuous joint opening/closing interval changeover switch 45 (hereinafter abbreviated as a changeover switch 45), a supported joint open/close interval changeover switch 46 (hereinafter abbreviated as a changeover switch 46), and changeover switches 44, 45, and 46, respectively. In order to prevent the opening/closing interval setting control device 10 (to be described later) from malfunctioning when the power is connected to the standard indicator light 44', the connecting connection indicator light 45', and the supporting connection indicator light 46', an opening/closing interval setting control device is installed. A time-limited normally open contact 47a connected to the input side of 10
and a timer 48 having a time-limited normally closed contact 48b, which outputs a one-shot signal to the opening/closing interval setting control device 10 as a tool open/close interval switching signal, and a timer 47 having a normally-open contact 4 of the timer 47.
It consists of a relay 49 having a normally open contact 49a connected in series to a switch 7a, and connected to a power source 57 via a switch 56. In addition, selector switch 4
Switching signals 4, 45, and 46 are output to the tamping control device 11, respectively, and switch the tool opening/closing interval detection device 31. The operating unit 42 is composed of a switching lever 50 that switches the opening/closing interval of the tool in accordance with the sleeper arrangement or the sleeper spacing, and an E-shaped guide groove 51 that guides the switching lever 50 to each switching position. has a horizontal groove 52 and three vertical grooves 5.
3, 54, and 55 are provided. The control section 41 and the operation section 42 are related to each other as follows. That is, when the switching lever 50 is located at the intersection 53' of the horizontal groove 52 and the vertical groove 53, only the switching switch 44 is closed, and when the switching lever 50 is located at the intersection 54' between the horizontal groove 52 and the vertical groove 54, the switching switch 45 is closed. When the switching lever 50 is positioned at the intersection 55' of the horizontal groove 52 and the vertical groove 55, only the switching switch 46 is closed. In addition, the switching lever 50 is moved through the intersection 53' to the standard position 5 at the tip of the vertical groove 53.
3'', both the changeover switch 44 and the main changeover switch 43 close, the standard indicator light 44' lights up, and the changeover lever 50 passes through the intersection 54' and moves into the vertical groove 5.
When placed at the connecting position 54'' of the tip of No. 4,
When the changeover switch 45 and the main changeover switch 43 are both closed, the connection indicator light 45' lights up, and the changeover lever 50 is moved through the intersection 55' and positioned at the supporting connection position 55'' at the tip of the vertical groove 55, the changeover switch 46
Both the main changeover switch 43 and the main changeover switch 43 close, and the support joint indicator light 46' lights up.

Therefore, when the switch 56 is turned on and the control unit 41 is connected to the power source 57, the timer 47 is activated.
After the time limit has elapsed, the time-limited normally open contact 47a closes, and then the switching lever 50 is switched to any one of the standard position 53'', the suspended position 54'', and the supported position 55'', the main switching switch 43 and each Either of the changeover switches 44, 45, 46 corresponding to the changeover position is closed, and the indicator lights 44', 44', corresponding to the changeover position are closed.
When either 45' or 46' lights up, the timer 48 and the relay 49 operate, and the normally closed contact 49a of the relay 49 closes. However, after the time limit elapses, the time limit normally closed contact 48b of the timer 48 opens.
The current of the relay 49 is cut off, the normally closed contact 49a is opened, and a one shot signal is outputted to the opening/closing interval setting control circuit 10 as a tool opening/closing switching signal.

As shown in FIG. 10, the opening/closing interval setting control device 10 includes a closing limit storage section 58, an opening limit storage section 59, and a minimum closing limit detection section 60. In the figure, a signal path indicated by a dashed line indicates a signal path from the tamping control device 11. Now, when a one shot signal is input from the detection switching device 9, the close limit storage section 58 and the open limit storage section 59 store this one shot signal, and the tool minimum close limit signal is output from the close limit storage section 58. The opening limit storage section 59 outputs a tool opening limit signal. Then, when the tool rises from the trackbed and comes to an intermediate stop, a tool minimum closing signal from the closing limit storage section 58, an intermediate stop signal output from the tamping control device 11, and an intermediate stop signal output from the tamping control device 11 are output. When the intermediate stop signal is AND, the tamping control device 11 outputs a tool close signal, the tamper opening/closing mechanism 16 operates, and the tool opening/closing interval is set in the tool opening/closing interval detection device 31. Close once to the minimum closing limit among the closing limits. In this case, the closed storage unit 5
The cutoff signal from 8 cuts off the tool opening signal from the tamping control 11 and stops the opening movement of the tool. In this way, when the tool closes to the minimum closing limit, the minimum closing detection section 60 detects this, outputs a minimum closing completion signal, and outputs a minimum closing limit completion signal to the closing limit storage section 5.
8 is shut off, and thereafter, the closing limit of the tool is controlled by the tamping control device 11 so that the closing limit of the tool corresponds to the sleeper arrangement or sleeper spacing switched by the detection switching device 9. In addition, the closed storage unit 5
8 is interrupted, the interruption of the tool open signal from the tamping control device 11 is released. On the other hand, when the tool opening limit signal from the opening limit storage section 59, the intermediate stop signal from the above-mentioned tamping control device 11, and the minimum closing limit completion signal from the minimum closing limit detecting section 60 are AND, The tamper opening/closing mechanism 16 is actuated by the tool open signal from the compaction control device 11, and the tool is moved from the minimum close limit to the open limit corresponding to the sleeper arrangement or sleeper spacing switched by the detection switching device 9. open. When the tool opens to the switched opening limit, the opening limit storage section 59 is shut off, and
Through the tamping control device 11, the tamper opening/closing mechanism 1
6 also stops. Therefore, the opening limit is automatically set.

Next, the operation of the tool opening/closing interval automatic switching device 8 having the above configuration will be described using an example of switching from the support joint sleeper arrangement to the standard sleeper arrangement.

Turn on the switch 56, connect the control section 41 of the detection switching device 9 to the power supply, and move the switching lever 50 of the operation section 42 from the supporting joint position 55'' to the vertical groove 55, the intersection 55', the horizontal groove 52, and the intersection 53'. , through the longitudinal groove 53 and into the standard position 53'', the timer 47 is activated, and after the time limit elapses, the normally open contact 4
7a is closed, the main changeover switch 43 and the changeover switch 44 are closed, the timer 48 and the relay 49 are activated, and when the time-limited normally closed contact 48b of the timer 48 is opened after the time limit has elapsed, the normally open contact 49 of the relay 49 is opened.
a opens and a one-shot signal is output to the opening/closing interval setting control device 10. When this one-shot signal is input to the opening/closing interval setting control device 10, the closing limit storage section 58 and the opening limit storage section 59 each store the one-shot signal, and the tool minimum closing limit signal is stored from the closing limit storage section 58. , the tool opening limit signal is output from the opening limit storage section 59. Further, a cutoff signal is output from the closing storage unit 58, and the tool open signal from the tamping control device 11 is cut off. and,
After completing the tamping of the support joint of the track rail, when the tool rises from the track bed and comes to an intermediate stop, the tool minimum closing signal from the closing memory unit 58 and the intermediate stop signal from the tamping control device 11 are sent. In the case of AND, the taper opening/closing mechanism 1 is controlled via the tamping control device 11.
6 is activated until the tool interval reaches the minimum closing limit set in the tool opening/closing interval detection device 31.
Close the tool once. In this way, when the tool closes to the minimum closing limit, the minimum closing detection section 60 detects this, outputs a minimum closing completion signal, shuts off the closing limit storage section 58, and from now on, the tool closes. The closing limit is controlled by the tamping control device 11 so as to be the standard closing limit corresponding to the standard position switched by the switching lever 50 of the detection switching device 9. Further, when the closing limit storage section 58 is cut off, the cutoff of the tool open signal from the tamping control device 11 is released. Then, when the tool opening limit signal from the opening limit storage section 59, the intermediate stop signal from the tamping control device 11, and the minimum closing limit completion signal from the minimum closing limit detecting section 60 are AND, the tamping control device The tamper opening/closing mechanism 16 is operated via 11, and the interval between the tools is
The tool is opened until the standard opening limit corresponding to the standard position switched by the switching lever 50 of the detection switching device 9 is reached. When the tool opens to the standard opening limit, the opening limit storage section 59 is shut off, the tamper opening/closing device 16 is stopped via the tamping control device 11, and the standard opening limit of the tool is automatically set. Therefore,
The tool opening/closing interval detection device 31 sets a standard closing limit for the standard opening limit, and thereafter, the track bed tamping work can be performed at the set standard opening/closing interval of the tool.

If the rail joint is a support joint,
The explanation has been given using the example of moving from a supported and spliced sleeper arrangement to a standard sleeper arrangement, but it is also possible to move from a suspended and spliced sleeper arrangement to a standard sleeper arrangement, or from a standard sleeper arrangement to a supported and spliced sleeper arrangement or a suspended and spliced sleeper arrangement. , can be performed similarly to the case described above.

As described above, the present invention provides an opening/closing interval detection device.
The opening and closing limits of the tool are set corresponding to the sleeper arrangement or the sleeper spacing on the track, and the detection switching device sets the tool's opening and closing limits according to the sleeper arrangement or the sleeper spacing during track bed tamping work, i.e. The opening/closing interval of the tool can be switched, and the opening/closing interval setting control device can automatically set the opening and closing limits of the switched tool. Therefore, even if the sleeper arrangement or the sleeper spacing changes during track bed tamping work, the worker does not have to spend time and effort setting the opening/closing interval of the tool through trial and error, as in the past, and the work can be continued. The operator only needs to use the detection switching device to switch the sleeper arrangement or sleeper spacing, and the opening/closing interval of the tool can be changed accurately, quickly and reliably, making it easier to perform track bed compaction work. Efficiency can be significantly improved.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are side views showing the arrangement of sleepers on the track and the corresponding opening/closing intervals of tools;
FIG. 4 is a block diagram of an embodiment of the present invention, and FIG.
The figure is a front view of the tamping device, Figure 6 is a view taken from the direction of the arrow in Figure 5, Figure 7 is a bed tamping sequence block diagram, Figure 8 is a plan view of the detection switching device, and Figure 9 is the detection switching device. FIG. 10 is a block diagram of the opening/closing interval setting control device. 8... Tool opening/closing interval automatic switching device, 9... Detection switching device, 10... Opening/closing interval setting control device, 3
1... Tool opening/closing interval detection device, 33, 33'',
34, 34″, 35, 35″……Proximity switch, 3
6, 36'...cam, 40...operation panel, 41...
Control unit, 42... Operation unit, 43... Main changeover switch, 44... Standard opening/closing interval changeover switch, 45...
...Support joint opening/closing interval selection switch, 46...Supported joint opening/closing interval selection switch, 47, 48...Timer, 49...Relay, 50...Switching lever, 5
1...Guide groove, 58...Closing limit storage section, 59...Opening limit storage section, 60...Minimum closing limit detection section.

Claims (1)

[Scope of utility model registration request] An operating section that switches the opening/closing interval of the tamping tool according to the sleeper arrangement or sleeper spacing on the railway track, and a tool opening/closing interval that changes to the tamping control device according to the switching of the opening/closing interval of the tamping tool on the operating section. A detection switching device comprising: a control unit that outputs a one-shot signal for switching a detection device to an opening/closing interval setting control device as a tool opening/closing interval switching signal; and an operation panel provided with the operating unit and the control unit. When a one-shot signal from the control section of this detection switching device is input,
a closing storage unit that stores this one shot signal and outputs a tool minimum closing signal and a welt cutting signal to the compaction control device;
an opening limit storage unit that outputs a tool opening limit signal to the tamping control device; and a minimum closing limit that detects when the tool closes to the minimum closing limit and outputs a minimum closing completion signal to the tamping control device. An opening/closing device comprising a detection section, which is activated by a one-shot signal from the control section of the detection switching device, and automatically sets the opening/closing interval of the tamping tool to the opening/closing interval of the tamping tool switched by the operating section of the detection switching device. A tamping tool opening/closing interval automatic switching device comprising: an interval setting control device;