JPH074589A - Oiling unit - Google Patents

Abstract

PURPOSE:To save labor and shorten time for an oiling operation to a rail fastening bolt and fastening fitting. CONSTITUTION:While a socket of a bolt tightening and loosening machine 11 of a rail fastening robot 22 is changed by an oiling nozzle 23 having a lower opening formed in the cup form to cover a head of the rail fastening bolt 2, an oiling device 26 for supplying oil to the oiling nozzle 23 according to a oiling command signal from controller 19 after the completion of lowering the bolt tightening and loosening machine 11 is attached to than upper surface of a body cover 18 of the rail fastening robot 22 so that the rail fastening robot 22 is diverted for use to an oiling robot for oiling the rail fastening bolt 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oiling unit which can be used as an oiling robot by mounting it on a railing robot.

[0002]

2. Description of the Related Art Generally, rails of railroad tracks are bolted to sleepers by fasteners. Therefore, when replacing the rails, all fasteners that secure the rails to the sleepers are temporarily removed, and after rails are replaced. It is necessary to re-bolt the fastener to the sleeper.

Conventionally, such work has been performed manually by a worker, but in recent years, the rail tightening device capable of moving up and down to detect the position of the rail fastening bolt of the fastening metal and moving the rail up and down is used to lift the rail. A rail fastening robot has been developed that can automatically tighten and loosen fastening bolts.

Various types of rail fastening robots have already been devised. For example, Japanese Patent Application No.
As shown in No. 332594, there is also a type in which the fastening metal fittings removed from the sleepers are transported to the side of the rail by loosening the rail fastening bolts while the fastening hardware is gripped by the robot hand. In the following description of the rail fastening robot, a configuration example of a type in which only the fastening and loosening operations of the rail fastening bolts are performed will be described.

FIG. 5 to FIG. 7 show an example of a rail fastening robot, which has a sleeper 3 by means of a fastener 1 and a rail fastening bolt 2.
A work carriage 6 capable of traveling in the direction indicated by an arrow A in the figure by driving a traveling motor 5 is mounted on a pair of rails 4 fixed to the vehicle via wheels 7.

Here, the work carriage 6 has a structure in which two split carriages 6a and 6b, which are respectively mounted on the left and right rails 4, are connected via a front and rear slide mechanism 8 and a front and rear wheel equalizer 9. The left and right split carriages 6a and 6b can be displaced relative to each other in the front-rear direction in response to the displacement of the left and right rail fastening bolts 2 fastened to the same sleeper 3 in the front-rear direction, and the load is applied to the four wheels 7. It is applied evenly.

[0007] A pair of bolt tensioners 11 rotatably equipped with sockets 10 which can be fitted into the heads of the rail fastening bolts 2 are provided at both widthwise positions of the work carriage 6.
Is guided by the guide member 12 in the vertical direction and is supported by a lifting motor 13 so as to be lifted and lowered by a wire 14 which is wound up and unwound via a winch drum 13a.

Here, the guide member 12 has an upper end portion so as to allow a slight misalignment when the socket 10 of the bolt tensioner 11 is fitted to the head of the rail fastening bolt 2. Is pivotally attached to the work carriage 6 via a pin 15 and the lower end is positioned by a spring 16 so as to be elastically displaceable (see FIG. 6).

Further, the bolt tensioner 11 of the work carriage 6
A position sensor 17 for detecting the position of the rail fastening bolt 2 is arranged at a front position in the traveling direction. Based on a detection signal from the position sensor 17, the bolt tensioner 11 causes the rail fastening bolt 2 to move. Control device 19 for stopping the traveling of the work carriage 6 so as to be positioned immediately above and starting the retightening operation of the rail fastening bolts 2, and the various electric devices described above (traveling motor 5, bolt tensioner 11, lifting motor). A power supply device 20 for supplying power to 13) is mounted in the widthwise central portion of the work carriage 6.

Reference numeral 18 in the drawing denotes a main body cover that surrounds an operating portion of the rail fastening robot.

According to such a rail fastening robot, the fastening and loosening work of the rail fastening bolt can be performed mechanically efficiently, and the labor and time required for the rail replacement work can be reduced. Is.

[0012]

However, it is necessary to regularly lubricate the fastening metal fittings 1 and the rail fastening bolts 2 fastened to the sleepers 3 by using the above-mentioned rail fastening robot or the like to prevent rust. Since this lubrication work was done manually by the workers, there was a problem that it required a great deal of labor and time, and the work efficiency was very poor, and mechanization was also desired for the lubrication work. .

The present invention has been made in view of the above situation, and provides a rail fastening robot by mounting the rail fastening robot on the rail fastening robot so that the rail fastening robot can be diverted to a robot for lubricating work. Also, the purpose is to save labor and reduce the time required to lubricate the fasteners.

[0014]

According to the present invention, a work carriage movably mounted on a rail fixed to a sleeper by a fastener and a rail fastening bolt of the fastener can be tightened and loosened. A bolt tensioner that can be moved up and down at a required position of the work vehicle, a position sensor that is provided at a required position of the work vehicle so as to detect the rail fastening bolt position, and a detection signal of the position sensor. Rail fastening with a control device that stops the traveling of the work carriage so that the bolt tensioner is positioned immediately above the rail fastening bolt based on the above, and starts the fastening and loosening operation of the rail fastening bolt by the bolt tensioner A bolting unit which can be installed in a robot to convert the rail fastening robot into a robot for lubricating work that lubricates the rail fastening bolts. Oiling nozzle formed in a cup shape with a lower opening that can be replaced with the socket of the rail fastening bolt and that can be put on the head of the rail fastening bolt, and detachable at a required position of the rail fastening robot and by an oiling command signal from the control device. An oil supply device for supplying oil to the oil supply nozzle when the descent of the bolt tensioner is completed.

[0015]

According to the present invention, therefore, the socket of the bolt tightener of the rail fastening robot is replaced with the lubrication nozzle, the lubrication device is mounted on the rail fastening robot, and the control mode of the control device is switched to the lubrication work. When the work cart is placed on the rail and run, the position sensor detects the rail fastening bolt position of the fastening metal fitting to be inspected next, and the bolt tensioner is placed directly above the rail fastening bolt. At that time, the traveling of the work carriage is stopped by the control device.

At this time, the bolt tensioner is lowered by the control device, the lubrication nozzle of the bolt tensioner is put on the head of the rail fastening bolt to stop the lowering of the bolt tensioner, and the lubrication device is stopped. When oil is supplied to the lubrication nozzle, the rail fastening bolts and fasteners are lubricated from the lubrication nozzle, and after the lubrication is completed, the bolt tensioner starts to rise and is stopped at the upper limit, and the next lubrication work is performed. The traveling of the work trolley for is started.

[0017]

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

1 to 4 show an embodiment of an oiling unit of the present invention. In the figure, reference numeral 21 designates a rail fastening robot 22 having substantially the same construction as the rail fastening robot shown in FIGS. By mounting the rail fastening robot 2
2 shows an oiling unit for converting 2 into an oiling robot, and the oiling unit 21 includes a socket 10 of the bolt tensioner 11 (see FIGS. 5 to 7) and an oiling nozzle 23 that can be replaced, and the rail. Main body cover 18 of fastening robot 22
An oiling command signal 24 (see FIG.
(See FIG. 2), and when the lowering of the bolt tensioner 11 is completed, an oil injection device 26 that supplies oil 25 (see FIG. 2) toward the oil injection nozzle 23 is provided.
The oil 25 is supplied from 6 to the oil injection nozzle 23 via the flexible tube 27.

The lubrication nozzle 23 is formed in a cup shape having a lower opening so as to cover the head of the rail fastening bolt 2, and the oil 25 supplied from the lubrication device 26 through the flexible tube 27 is supplied. The oil can be discharged inward from a plurality of locations in the circumferential direction of the lower end portion through the oil passage 28 formed inside.

Further, the internal structure of the lubricating device 26 is shown in FIG.
In the oiling device 26, an oil tank 29 for storing a required amount of oil 25 required for oiling work and an oil suction line 31 from the oil tank 29 having a check valve 30 are provided. 25 and takes the oil 25 into the lubrication nozzle 2
3, a reciprocating pump 34 for feeding through a discharge line 33 having a check valve 32, and a plunger 35 of the reciprocating pump.
Is equipped with a lubrication motor 38 that reciprocates via a rack 36 and a pinion 37. The lubrication motor 38 has a connector 40 at the end of a cable 39 connected to itself and a connector on the side of the control device 19 of the rail fastening robot 22. By connecting to 41, the electric power necessary for driving the lubrication motor 38 and the lubrication command signal 24 are provided.

Reference numerals 42 and 43 in FIG. 2 are operation command signals output from the control device 19 to the traveling motor 5 and the lifting motor 13, respectively, and 44 is a detection signal input from the position sensor 17 to the control device 19. Indicates a signal.

Further, the control flow of the lubrication operation mode by the controller 19 of the rail fastening robot 22 will be described in detail below with reference to FIG.

When the position sensor 17 detects the position of the rail fastening bolt 2 after the traveling of the work carriage 6 is started, the time when the bolt tensioner 11 is arranged immediately above the rail fastening bolt 2 is checked. The traveling of the work carriage 6 is stopped, the descending of the bolt tensioner 11 is started at a time point Xmm before the scheduled stop position of the work truck 6, and the lubrication nozzle 23 replaced with the bolt tensioner 11 is moved to the rail. When the time t that exceeds the predetermined time ts sufficient to cover the head of the fastening bolt 2 has elapsed, the descending of the bolt tensioner 11 is stopped.

At this time, at the same time as the lowering of the bolt tensioner 11 is stopped, the pushing operation of the plunger 35 of the lubricating motor 38 starts the lubrication, and the time t exceeding the predetermined time tp sufficient for completing the lubrication is not reached. After a lapse of time, the plunger 25 is pulled back by the reverse rotation of the lubrication motor 38, and the oil 25 for the next lubrication work is removed from the oil tank 29.
Is taken into the reciprocating pump 34, and the pull-back operation of the plunger 35 is stopped when a time t that exceeds a predetermined time tp sufficient for completing the oil 25 is completed.

At the same time as the completion of the lubrication, the bolt tensioner 11 starts to rise and is stopped at the upper limit, and while the bolt tensioner 11 is being raised, the work carriage 6 is used for the next lubrication work. Driving starts.

The time schedule of the control flow described above is as shown in FIG. 4. In short, the socket 10 of the bolt unraveling machine 11 in the control process in the case of tightening and loosening the rail fastening bolt 2 is performed. Instead of rotating and stopping, oil 2 is fed from oiling device 26 to oiling nozzle 23.
5 is supplied and stopped.

Thus, the rail fastening robot 22 is loosened to stand upright, or when the rail fastening bolt 2 is temporarily fixed immediately before fastening the rail fastening bolt 2 during the rail replacement work, the bolt fastening of the rail fastening robot 22 is performed. The socket 10 of the disassembling machine 11 is replaced with an oiling nozzle 23, and the body cover 1 of the rail fastening robot 22 is also replaced.
8. The lubrication device 26 is mounted on the upper surface of 8 through a suction cup or the like, the control mode of the control device 19 is switched to lubrication work, and the work carriage 6 is placed on both rails 4 in the direction of arrow A at a constant speed. When it is moved forward, the position sensor 17 detects the head position of the rail fastening bolt 2 of the fastening metal fitting 1 to be inspected next, and when the bolt tensioner 11 is placed directly above the rail fastening bolt 2, the position is determined. The traveling of the work carriage 6, that is, the traveling motor 5 is stopped by the control device 19.

Then, the controller 19 causes the lifting motor 1 to move.
3 to drive the wire 14 to unwind and the bolt tensioner 11
, And the oiling nozzle 23 of the bolt tensioner 11 is put on the head of the rail fastening bolt 2 so that the bolt tensioner 1
1 is stopped, and the lubrication motor 38 in the lubrication device 26 is driven to supply the oil 25 to the lubrication nozzle 23 by the reciprocating pump 34, so that the lubrication nozzle 23 lubricates the rail fastening bolts 2 and the fasteners 1. Be seen.

Further, when the lubrication is completed, the lubrication motor 38 is reversed and the reciprocating pump 34 causes the oil tank 2
The oil 25 for the next lubrication work from 9 is taken into the reciprocating pump 34, and the bolt tensioner 11 is started to rise and stopped at the upper limit. The running for the next lubrication work of 6 is started.

Thereafter, the same operation as described above is repeated for the next rail fastening bolt 2.

Therefore, according to the above embodiment, by mounting the lubrication unit 21 on the rail fastening robot 22, the rail fastening robot 22 can be diverted and used as a lubrication work robot. It is possible to efficiently mechanically perform the lubrication work for the rail fastening bolts 2 and the fastening fittings 1, which required a long time, and it is possible to save labor and shorten the time for the lubrication work.

The lubrication unit of the present invention is not limited to the above-mentioned embodiment, and the type of the rail fastening robot is not limited to the illustrated example, and within the scope not departing from the gist of the present invention. It goes without saying that various changes can be made in.

[0033]

According to the above-described lubrication unit of the present invention, by mounting the lubrication unit on the rail fastening robot, the rail fastening robot can be diverted and used as a lubrication work robot. It is possible to achieve an excellent effect that it is possible to mechanically and efficiently perform the lubrication work for the rail fastening bolts and the fasteners, which required labor and time, and the labor and time can be reduced. .

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a schematic view showing details of the oil supply device of FIG.

FIG. 3 is a flow sheet showing a control flow in one embodiment of the present invention.

FIG. 4 is a graph showing a time schedule of the control flow of FIG.

FIG. 5 is a front view showing an example of a rail fastening robot.

6 is a view in the direction of arrow VI-VI of FIG.

FIG. 7 is a view in the direction of arrow VII-VII in FIG.

[Explanation of symbols]

 1 Fasteners 2 Rail fastening bolts 3 Sleepers 4 Rails 6 Work trolleys 10 Sockets 11 Bolt tensioners 17 Position sensors 19 Control devices 21 Lubrication units 22 Rail fastening robots 23 Lubrication nozzles 24 Lubrication command signals 25 Oil 26 Lubrication devices

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shunichi Kimura 3-15-1 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Toni Technical Center

Claims (1)

[Claims] 1. A work carriage movably mounted on a rail fixed to a sleeper by a fastening bracket, and a rail can be lifted and lowered to a required position of the work truck so that a rail fastening bolt of the fastening fitting can be tightened and loosened. , A position sensor disposed at a required position of the work carriage so as to detect the position of the rail fastening bolt, and a position directly above the rail fastening bolt based on a detection signal of the position sensor. By mounting it on a rail fastening robot equipped with a controller for stopping the traveling of the work carriage so that the bolt tensioning machine is positioned at the position and for starting the tightening and loosening operation of the rail fastening bolt by the bolt tensioning machine, It is a lubrication unit that can convert the rail fastening robot to a robot for lubrication work that lubricates the rail fastening bolt, and can be replaced with the socket of the bolt tensioner. Also, the cup-shaped lubrication nozzle with a lower opening that can be put on the head of the rail fastening bolt, and the rail fastening robot can be attached to and detached from the required position of the rail fastening robot. An oiling unit, which comprises an oiling device for supplying oil to the oiling nozzle at times.