KR100581612B1 - Railroad working car having changeable wheels - Google Patents

Abstract

The present invention relates to a variable wheel car for railway and subway track work, and when performing inspection and repair work on the track, the front and rear wheels can move freely in the state seated on both rails, In order to evacuate the operation of the front and rear wheels from the rail, a variable wheel car with a lifting frame and a telescopic variable frame on both sides can be used to work on curved tracks with different installation heights of both rails. A horizontal control device that adjusts the height of both variable frames so that one side of the variable frame located on the upper side of the rail is horizontal with the other side of the high frame on the upper side of the rail. Foot, characterized in that it is installed between both sides before and after A.

Subway, railway, variable wheel car, variable frame, hydraulic control device

Description

Railroad working car having changeable wheels

1 is a side view of a variable wheel car for explaining the present invention.

2 and 3 is a cross-sectional view taken along the line A-A of Figure 1 for showing an operating state in which the wheel width of the variable wheel car of the present invention is stretched and adjusted.

4 and 5 is a cross-sectional view taken along the line B-B of Figure 2, the operational state diagram of both sides of the variable frame to show that the vehicle width of the variable wheel of the present invention is stretched and adjusted.

Figure 6 and Figure 7 is a cross-sectional view of the operating state of the lifting device to show that the variable wheel car of the present invention derailed and returned from the rail.

Figure 8 and Figure 9 is a cross-sectional view of the operating state of the horizontal control device for adjusting both sides of the variable frame in the horizontal state in order to work on the curved track of the variable wheel car of the present invention.

10 and 11 is an operating state diagram of the rail binding device for binding the variable wheel car of the present invention to the rail.

※ Explanation of code for main part of drawing

1: variable wheel car 10a: hydraulic control device

10b: Swivel chair 2a, 2b: Variable frame

21,22: Front and rear wheel brackets 23,24: Front and rear wheels

25: hydraulic motor for wheel drive 3: support plate

4a-1,4b-1: Front cylindrical frame

4a-2,4b-2: rear cylindrical frame

41,42: Front and rear piston frame

5a, 5b: Variable hydraulic cylinder 51,52: Piston rod

6: lifting device 61,62: upper and lower casing

63,64: support link 65: lifting cylinder

66,68: Upper and lower rollers 67,69: Upper and lower guide rails

7: rotating shaft 71: small hydraulic motor

72: moving roller 8: the horizontal adjusting device

81: cylinder body 82: piston rod

83: support plate 9: rail binding device

91 case 92: bidirectional cylinder

93a, 93b: upper link 94a, 94b: lower link

95: connecting pin 96: main hinge pin

97: middle pin 98a, 98b: both side clamps

R: Rail

The present invention is a variable wheel car that can perform various maintenance work, new work, improvement work related to the track of subway (including train) and railway track more efficiently and efficiently so that both rails are inclined differently from each other. A railroad having a horizontal adjusting device for adjusting the top plate of the variable wheel car to be in a horizontal state on the installed curved track, and a rail binding device for safely performing various tasks in a state where the variable wheel car is fastened to the rail. A variable wheel car for subway track work.

In the case of railways currently operating, most of the tracks are installed on the ground, and in the case of subways, the tracks are mainly installed underground, and in the section where the tracks cannot be installed underground, the tracks are exposed to the ground. The track is being built.

The railways and subways as mentioned above check the safety status of tracks (rails, sleepers, fasteners) installed on the tracks and the abnormality of the surrounding structures at regular intervals. Maintenance work and improvement work is being carried out.

In addition, when conducting track maintenance and improvement work of railroad tracks, construction is conducted by selecting a time when trains are not operated for a long time.In the case of railroads, trains are installed at each station because railroad tracks are installed on the ground. There are a plurality of auxiliary tracks that allow evacuation of other trains, work vehicles, etc., including running tracks, and there is a gap between trains operating on the train. And it is possible to perform the maintenance work of the track by inputting the working personnel, but in the case of the subway is unable to proceed with the inspection and maintenance work of the track in the operating time zone.

Recently, in the case of subway, the speed of train is getting shorter due to the increase of traffic volume, and the track's track is damaged due to the increase of passengers, while the track can be maintained and repaired. Maintenance can be performed only for a short time (approximately 2-3 hours) from the end of the last train operation until the start of the next first train. For example, in the case of the domestic subway, the track is usually installed by double tracks, and the first trains depart at about 5 am from each of the designated departure stations, and the last trains operate from about midnight to 2 am Maintenance work on the track can only be performed during the time period from when the last train stopped, but before the start of the first train.In the case of the subway, unlike the railway where the track is installed on the ground, Due to the nature of installation, it is not possible to install auxiliary tracks to evacuate trains at each station section, so make base windows on adjacent grounds at specially designated station sections and check trains at the base windows or perform maintenance work on underground lines. Waiting for the equipment to run, the train does not run It is a situation where maintenance work of track is carried out by putting equipment and working people into underground track during the time.

In the prior art, the equipment input to the track is composed of a motor car moving on tracks and a self-propelled vehicle, and a transport vehicle carrying work people and various work tools. The actual working time that can be constructed at the construction site when the train is not operating is not possible because the work cannot be performed during the time required to move from the construction site to the construction site and back to the base window. This can only be very short, which causes workers to be lost in time and unable to perform a complete refurbishment. If the reconstruction of the track is not done properly but poorly, the biggest problem is that the train operation is exposed to danger and cause driving accidents.

In addition, the above-described motor cars and transport vehicles cannot efficiently inspect and repair the cracks generated on the walls of the underground tracks, and remove the gravel from the tracks, or replace the sleepers and rails. In this situation, the maintenance work of the track was inefficient because it was dependent on the manpower of the worker.

Therefore, the present invention has been proposed to solve all the problems shown in the prior art, it is possible to check the abnormality of the track while moving in the track orbit of the track as well as the time that the train is running during the inspection and maintenance work In a variable wheel car that can be evacuated from its own track at the inspection and maintenance work site without returning to the base window, the evacuation is prevented from interfering with the train operation. It is an object to provide a leveling device that can adjust the top plate of the variable wheel car in a horizontal state so that the operator can work in a stable position when performing the operation, and also when the work is performed while the variable wheel car is stopped on the track Work by keeping the wheel car fixed on the track The present invention has been invented for the purpose of providing a rail binding device that enables a worker to safely perform a work.

The present invention as a means for achieving the above object,

When performing inspection and repair work on the track, the front and rear wheels can move freely while the front and rear wheels are seated on both rails.When not in operation, the front and rear wheels are separated from the rails in order to evacuate the operation of the train. If you want to work on a curved track that has different mounting heights of both rails, a variable wheel car equipped with a lifting device and an adjustable variable frame on both sides of the rail, the one side of the variable frame located above the lower rail It is configured to include a horizontal adjusting device for adjusting the height of both sides of the variable frame so as to be horizontal with the other side of the variable frame located between the upper and rear of the front and rear, and both sides of the variable frame. Is to

In addition, the horizontal adjustment device is characterized in that consisting of a cylinder body embedded in each of the front and rear sides of the variable frame on both sides, and a piston rod connected to the top of each of the front and rear wheel brackets.

In addition, both sides of the front and rear wheel brackets are mounted inside the case fixedly installed at the front and rear of the front and rear wheel brackets so that the variable wheel car can be fixed to the track. The tongs is characterized in that it further comprises a rail binding device for binding and releasing the upper portion of the rail,

In addition, the rail binding device is a main hinge pin rotatably supported on the upper portion of the case, the upper link on both sides of the upper link formed in the shape of "八" with the middle portion rotatably connected to the main hinge pin, the two upper links Both ends of the lower link is formed by connecting pins at both ends of the inverse " 8 " shape, and the upper and lower links of the upper and lower links are mounted horizontally between the upper and lower links so as to stand out on both sides. Bidirectional cylinders connected to both ends, and both side clamps extending from the lower links on both sides, and clamping and releasing the upper part of the rail while coming out to the lower side of the case as the two piston rods of the bidirectional cylinder are sunk and operate. It is.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a side view of a variable wheel car for explaining the present invention, Figures 2 and 3 is a cross-sectional view taken along the line AA of Figure 1 for showing the operating state that the wheel width of the variable wheel of the present invention is stretched and adjusted, 4 and 5 is a cross-sectional view taken along line BB of Figure 2 is an operational state diagram of the variable frame on both sides to show that the variable width of the variable wheel car of the present invention is stretched, Figure 6 and 7 is a view of the variable wheel car of the present invention in the rail 8 is a cross-sectional view of an operating state of a lift apparatus for indicating derailment and return, and FIGS. 8 and 9 are cross-sectional views of an operating state of a horizontal control apparatus for adjusting both side variable frames in a horizontal state in order to operate the variable wheel car of the present invention on a curved track. 10 and 11 illustrate an operation state diagram of a rail binding apparatus for binding the variable wheel car of the present invention to a rail.

Reference numeral 1 denotes a variable wheel car, and the variable wheel car 1 protrudes downward on both side variable frames 2a and 2b formed at predetermined lengths on both left and right sides and bottoms of both ends of the variable frame. In each of the front and rear wheel brackets 21 and 22 formed, the front and rear wheels 23 and 24 are freely rotatable, and the front wheels 23 of the front and rear wheels are mounted to the front wheel bracket 21. It is configured to rotate by itself by the hydraulic motor 25.

In addition, both sides of the variable frame (2a) (2b) of the variable wheel car (1) has the same width as both rails (R) on the basis of the support plate (3) having a width smaller than the width of both rails (R) of the track. It is configured to be widened or narrowed to a narrow width, for this purpose, the front and rear bottom of the support plate (3), respectively, two front and rear cylindrical frame (4a-1, 4b-) (4a-2, 4b-2) are fixedly attached to both sides of the variable frame, and the front and rear cylindrical frames 4a-1 and 4b-1 and 4a-2 and 4b-2 are respectively opposite to each other. The front and rear piston-type frames 41 and 42 are inserted and installed so that the free end of each of the front and rear piston-type frames can be inserted into the front and rear sides of both side variable frames 2a and 2b. It is fixedly connected as a coupling structure such as welding.

In addition, a plurality of variable hydraulic cylinders 5a and 5b are fixedly installed at the bottom of the support plate 3 so that the piston rods 51 and 52 can be projected in opposite directions. The tip of each of the 51 and 52 is fixedly connected to both side variable frames 2a and 2b.

Therefore, when the hydraulic cylinders 5a and 5b operate simultaneously and the piston rods 51 and 52 appear and operate together, both variable frames 2a and 2b are widened to have the same width as the rails R on both sides. On the contrary, when the piston rods 51 and 52 are immersed in operation, both side variable frames 2a and 2b move toward the support plate 3 and become narrower than the widths of the rails R on both sides. The car 1 extends the width of the wheels of the front and rear wheels 23 and 24 provided at the front and rear of both side variable frames 2a and 2b to the same width as both rails R, or the widths of both rails. It can be reduced to a much narrower width.

Front and rear cylindrical frames (4a-1, 4b-1) (4a-2, 4b-2) which are connected to expand and contract both side variable frames (2a) and (2b) of the variable wheel car (1) And the front and rear piston-type frames 41 and 42 installed in such a manner as to be retractably inserted into each of the cylindrical frames, the hydraulic controller 10a and the rotary chair 10b installed on the support plate 3, or Although not shown in the drawing is formed in a rectangular pipe structure that can support the weight of the small excavator, which is one of the lift device or construction equipment to operate the lifting operation by the hydraulic control device (10a), the hydraulic control device (10a) The hydraulic pressure for driving the wheel drive hydraulic motor 25, the variable hydraulic cylinders 5a and 5b, the lifting device 6, the small hydraulic motor 71 and the like is controlled.

At the bottom of the middle portion of each of the variable frames 2a and 2b of the variable wheel car 1, a lifting device 6 capable of lifting the variable wheel car 1 itself onto the rail R is provided.

The lifting device 6 in the above is the upper casing 61 fixed to the bottom of each of the variable frame (2a) (2b) on both sides, and the lower casing is installed so as to move up and down in the state of wrapping the upper casing ( 62), two support links 63 and 64 installed in the upper and lower casings in the form of an "X" shape, and a lifting cylinder 65 installed to lift the lower casing 62. The upper roller 66 rotatably attached to the upper end of each of the two support links 63 and 64 is horizontal along the upper guide rails 67 horizontally installed on both upper and lower ends of the upper casing 61. The lower roller 68, which is installed to be movable and is rotatably attached to the lower end of each of the support links 63 and 64, is horizontally installed on both inner lower sides of the lower casing 62. It is installed to move horizontally along the guide rail 69, the above-mentioned lifting cylinder The 65 has a rear end of the cylinder body (lower part in view) attached to the lower casing 62 with a pin shaft and a tip of the piston rod (upper part in view of the drawing) of the upper casing 61. ) Is attached to the pin shaft. The elevating device 6 includes a rotating shaft 7 horizontally installed at a lower end side of the lower casing 62 in a state capable of rotating toward the front and rear wheels, a small hydraulic motor 71 and a lower casing 62 rotating the rotating shaft. It comprises a moving roller 72 which is condensed on both sides of the rotary shaft so as to protrude from the bottom of the).

As shown in FIG. 6, the lifting device 6 configured as described above has the lower casing 62 in the state where the piston rod of the lifting cylinder 65 is immersed and the upper and lower casings 61 and 62 are reduced. Spaced above the rail R, the front and rear wheels 23 and 24 are supported by the rail R, and the variable wheel car 1 can be driven. Similarly, the piston rod of the elevating cylinder 65 appears to operate and moves the roller 72 to the support neck (not shown) supported on the rail R while the lower casing 62 is extended to the lower side of the upper casing 61. In this case, the front and rear wheels 23 and 24 derail above the rail R, so that the variable wheel car 1 can be detached from the track. Accordingly, the variable wheel car 1 It will be able to evacuate itself to the space formed between the track and the track.

Next, in order to support the front and rear wheels 23 and 24 on the rails R so that the variable wheel cars 1 can move freely on the tracks, the two side variable frames 2a and 2b are mounted on the rails R. It will be described with respect to the operating state to expand to the same width and the operating state to reduce both side variable frame (2a) (2b) smaller than the width of the rail (R) in order to evacuate the variable wheel car 1 on the track.

2 and 4 show a state in which the front and rear wheels 23 and 24 of the variable wheel car 1 are supported on both rails R of the track, and in this case, the variable hydraulic cylinder 5a. (5b) is in operation to the piston rod (51, 52) appeared and actuated, so that in each of the front and rear cylindrical frame (4a-1, 4b-1) (4a-2, 4b-2) The front and rear piston-type frames 41 and 42 appear to operate on both the left and right sides, and both variable frames 2a and 2b are extended by the widths of the rails R on both sides. The variable wheel car (1) installed with the rear wheels movable can be operated by an operator sitting on the swivel chair (10b) to operate the hydraulic control device (10a) or sitting in the driver's seat of a mounted small excavator (not shown). By the operation of the operator, the wheel drive hydraulic motor 25 can be driven in the forward direction or the reverse direction, so that the variable wheel car 1 itself is a rail ( R) can move forward or backward independantly from above, and also increase or decrease the driving speed of the above-described wheel drive hydraulic motor 25 to drive the track while increasing or decreasing the forward and backward speeds of the variable wheel car 1. It becomes possible.

Therefore, the worker can carry out the inspection and repair work while moving on the track while riding in the variable wheel car (1), and when he wants to perform the track repair work, inspection work or track replacement work of the track, etc. It is possible to move quickly and to approach within a short time, and furthermore, by connecting a transport vehicle (not shown) capable of carrying manpower, equipment and materials to the variable wheel car 1, various equipment necessary for working personnel and work, and It can also carry material.

3 and 5 show that the variable wheel cars 1 are derailed from both rails R, and then the two variable frames 2a and 2b are reduced in order to evacuate to the middle part between the track and the track. In this case, the variable hydraulic cylinders 5a and 5b are operated to immerse the piston rods 51 and 52 so that the front and rear piston-type frames 41 and 42 are operated. The front and rear cylindrical frames 4a-1, 4b-1 (4a-2, 4b-2) are immersed in operation so that both variable frames 2a, 2b are reduced in a state of being in close contact with both sides of the support plate 3. In this case, the two-sided variable frame that is scaled down is much narrower than the width of both rails (R), so that the subway can be evacuated to an intermediate space formed between the track and the track.

In addition, the present invention is a horizontal adjusting device for horizontally adjusting the variable frame (2a) (2b) and the support plate (3) on both sides of the variable wheel car (1) in a curved line with different installation height of the rail (R) ( 8) is configured to include.

The horizontal adjusting device (8) is shown in the concealed state inside the cylinder body 81 is installed in the concealed state inside both sides of the front and rear sides of the variable frame (2a) (2b), and the bottom of the variable frame (2a) (2b). It consists of a piston rod 82 which is installed to be operable, and a support plate 83 fixedly attached between the front end of the piston rod and the upper and rear wheel brackets 21 and 22, respectively.

As described above, the horizontal adjusting device 8 installed on both sides of each side of the variable frames 2a and 2b is used when the variable wheel car 1 works on the same straight line with the same height of both rails R. The upper and rear ends of the front and rear brackets 21 and 22 are held in close contact with both bottoms of the front and rear sides of the two variable frames 2a and 2b, and the heights of the rails R are opposite to each other. When performing work on other curved tracks, the front and rear wheels 23 and 24 are supported on the lower one side rail R, and the one side variable frame 2a or 2b is adjusted upward so that both side variable frames By adjusting (2a) and (2b) in a horizontal state, the operator can safely work on the horizontally adjusted support plate (3).

8 and 9 show that the variable wheel car 1 is horizontally adjusted in a curved line, and the illustration of FIG. 8 is based on the left side when the right rail is high and the left rail is low. It shows that the piston rod 82 of the horizontal adjusting device 8 installed on both sides of the variable frame 2a appears and operated to adjust the left variable frame 2a to the right variable frame 2b in a horizontal state. 9 shows that when the left rail is high and the right rail is low, the piston rods 82 of the horizontal adjusting device 8 installed on both sides of the right and left right variable frames 2b appear and operate. The adjustment of 2a) and 2b in the horizontal state is shown.

In addition, the present invention is configured to further include a rail binding device (9) for working safely in a state in which the variable wheel car (1) is fixed to the track of the work site.

The rail binding device (9) is equipped with a bidirectional cylinder (92) horizontally installed inside the case (91) having a lower opening, and at the front end of each of the piston rods that emerge from both sides of the bidirectional cylinder (92). The ends of each of the upper and lower links 93a, 93b and 94a and 94b each configured by two are connected to the ends of both piston rods of the bidirectional cylinder 92 by the connecting pin 95, and the upper links 93a on both sides. The main hinge pin (96) connecting the (93b) is rotatably mounted on the inner upper portion of the case (91), and the upper and lower links are connected to the case (91) based on the main hinge pin (96). It moves up and down toward the lower side.

Each of the lower links 94a and 94b is formed to protrude from both side clamps 98a and 98b extending long relative to the middle pin 97.

The rail binding device 9 configured as described above is operated by the hydraulic pressure supplied and recovered from the hydraulic control device 10a mounted on the upper portion of the variable wheel car 1, and moves the variable wheel car 1 on the track. When the upper and lower links (93a, 93b) (94a, 94b) is opened to both sides when the piston rod of both sides of the bidirectional cylinder (92) appear at the same time as shown in Figure 10, the upper link (93a) 93b is moved upward while being held in the state fixed by the main hinge pin 96, so that the bidirectional cylinder 92 and the lower links 94a and 94b are also moved upward, and the lower link is opened. As the ascending movement moves, both tongs 98a and 98b are also moved up in a state where they are largely opened, thereby concealing inside the case 91. Thus, both tongs 98a and 98b are released from the rail R. Variable in the state concealed in the furnace case 91 Ryunka (1) is freely removable from the rail (R).

In addition, when the variable wheel car 1 is fixed to the track of the work site, when the operation is to be immersed in the piston rods on both sides of the bidirectional cylinder 92 as illustrated in FIG. 11, the upper and lower links ( 93a, 93b (94a, 94b) is retracted to the bi-directional cylinder side, even if the upper link (93a, 93b) is fixed to the main hinge pin 96, when the upper link is retracted bidirectional cylinder (92) ) And the lower link (94a, 94b) is to move downwards, thereby both the tongs (98a, 98b) is to move toward the rail (R) to move downward to pinch the upper portion of the rail.

In the above, the rail binding device 9 itself is in a state capable of moving left and right using the main hinge pin 96 which rotatably binds the upper links 93a and 93b to the rotational starting point. Therefore, even when the center of the rail fastening device 9 and the center of the rail R do not coincide on the vertical line, the two side tongs 98a and 98b can pinch the rail R accurately, so that the variable wheel car 1 can be secured. In the straight line as well as in the curved line, the rail binding device 9 can pinch the rail R precisely and bind it.

In addition, the rail binding device 9 which binds the rails R as both side tongs 97a and 97b simultaneously binds and operates at four positions at the front and rear sides of the front and rear brackets 21 and 22 at the same time. Or can be selectively engaged with each other, and when all four rail binding devices 9 bind the rails, the variable wheel car 1 itself can be firmly fastened to the tracks. It is possible to perform the inspection and repair work of the track with safety.

According to the present invention as described above, the variable wheel car can move independently on the track, so that the mobility and accessibility of the track to the construction site is easy, and also the time when the train and the subway run while working on the track approaches. Even if it is not possible to evacuate to the base window, it can derail and evacuate itself on the track of the construction site, thereby increasing the actual work time, thereby making it possible to perform the inspection and repair work of the track more efficiently. In the case of a variable wheel car equipped with a hydraulic control unit and a swivel chair, the operator can check the track while showing the inspection in a comfortable sitting position in the swivel chair. If the variable wheel car is equipped with a hydraulic control device and a lift device, the lift It is effective to increase and repair the ceiling of the track by increasing the operation of the gear, and when a mini excavator is installed in the variable wheel car, a heavy excavator is used to transport heavy loads such as sleepers and rails or to the bottom of the track. Since it is possible to dig out the gravel, it is easy to carry out relatively large works such as track replacement and new construction even with a small number of workers. In this case, by adjusting the variable frame on one side of the variable wheel car so that the variable frame on both sides can be leveled, it can provide an effect that enables the operator to perform the inspection and repair work in a stable posture, and fix the variable wheel car on the track. Can be engaged in a controlled state, allowing workers to concentrate on their work with confidence. It offers the advantage of being able to.

Claims (4)

When performing inspection and repair work on the track, the front and rear wheels can move freely while the front and rear wheels are seated on both rails.When not in operation, the front and rear wheels are separated from the rails in order to evacuate the operation of the train. If you want to work on a curved track that has different mounting heights of both rails, a variable wheel car equipped with a lifting device and an adjustable variable frame on both sides of the rail, the one side of the variable frame located above the lower rail It is configured to include a horizontal adjusting device for adjusting the height of both sides of the variable frame so as to be horizontal to the other side of the variable frame located on the upper and rear sides of the variable frame to be connected to each upper and rear wheels. In the variable wheel car for track work, In order to fix the variable wheel car in the state bound to the track, the front and rear wheel brackets are mounted inside the case fixedly installed at the front and rear, respectively. The variable wheel car for railway and subway track work, characterized in that further comprises a rail binding device for binding and releasing the upper portion of the rail. delete delete The method of claim 1, The rail binding device includes a main hinge pin rotatably supported on an upper portion of the case, two upper links formed in an “八” shape with an intermediate portion rotatably connected to the main hinge pin, The upper and lower links of the lower link on both sides formed by connecting pins at both ends connected in inverse " 8 " shape, and the piston rods which are projected to both sides while being horizontally mounted between the upper and lower links, respectively. Bidirectional cylinders connected to both ends of the, and both sides of the lower link extending from the lower side link as both piston rods of the bidirectional cylinders coming out to the lower side of the case while coming out of the case to bind and release the upper part of the rail, characterized in that consisting of Variable wheel car for railway and subway track work.

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