JP4236847B2 - Towed track inspection vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tow-type track inspection vehicle, and more specifically, a hand-held simple track inspection vehicle having a structure corresponding to a simple and lightweight track inspection vehicle with a small measuring string is used as a track inspection unit. In particular, the present invention relates to a tow-type track inspection vehicle suitable for inspection of a subway or the like.
[0002]
[Prior art]
In the track constituting the railroad track, the left and right rails are deviated from the reference position by train operation or the like. This deviation is called trajectory deviation, and five items are defined: (1) street deviation, (2) high / low deviation, (3) gauge deviation, (4) level deviation, and (5) flatness deviation.
In the main line where many commercial trains are operated, a large-scale track inspection vehicle is composed of vehicles with almost the same standards as commercial vehicles, and it is pulled by an electric or diesel locomotive and travels at high speed. Each trajectory error is measured. However, large-sized inspection vehicles are not suitable for the secluded line district where the number of train operations is small and the side lines inside the station, so a medium or small inspection device (inspection vehicle) has been developed, or It's being used. Furthermore, in order to perform simple inspection, a simple track inspection vehicle that is manually pushed by low-speed traveling has been put into practical use.
[0003]
[Problems to be solved by the invention]
This type of inspection vehicle has been widely used on ground railroads, but in subways, etc., it is difficult to use a medium or small inspection device due to the relationship between the track and the running speed, etc. There is a problem that the measurement vehicle needs to be improved or developed according to the medium speed traveling.
Therefore, it is conceivable to use the above-described simple type track inspection car with a hand as a simple one, but in the simple type track inspection car with a hand press with respect to the track distance, the measurement string is 1.25 m, Since the inspection is performed at the speed of hand pressure, there is a problem that the inspection takes too much time.
[0004]
To solve these problems, there is a tow-type start-up inspection vehicle equipped with a dedicated processing device, which is arranged with a plurality of height sensors and street sensors to form a 2.5-meter measuring string. A measuring mechanism is provided, and has a structure of a carriage in which two or three measuring units (measuring wheels) including a height sensor and a passage sensor are provided along the left and right rails. From this carriage to the processing device Manufactured as a dedicated inspection vehicle. This inspection vehicle adopts a configuration in which the measurement unit is lowered at the start of measurement, and the measurement unit is raised at the end of measurement to be forwarded. In addition, the measurement wheels are relatively heavy, and therefore, four or more measurement units (measurement wheels) must be manually raised and lowered with respect to the rails independently of each other, resulting in poor workability.
Further, since the number of vehicles is not large as compared with a hand-held simple type track inspection and measurement vehicle, the number of vehicles is relatively high, and there is a disadvantage that the size becomes larger than that of a hand-held simple type track inspection and measurement vehicle.
An object of the present invention is to solve such problems of the prior art, and to provide a hand-held simple track inspection vehicle having a structure equivalent to a hand-held simple and lightweight track inspection vehicle with a small measuring string. The object of the present invention is to provide a tow-type track inspection vehicle suitable for inspection of a subway or the like, which can be used as a track inspection unit to make the vehicle body structure simple and improve the efficiency of inspection work.
[0005]
[Means for Solving the Problems]
In order to achieve such an object, the configuration of the present invention is a towed track inspection vehicle that travels on left and right rails using traveling wheels and is towed by a tow vehicle, and has a traveling wheel and is pulled by the tow vehicle. The vehicle body base has a plurality of measurement wheels, and has a width substantially equal to the width of the rail. The vehicle runs on the rail independently of the vehicle body base with one of the measurement wheels as a traveling wheel, and is located below the vehicle body base. A track inspection unit that is arranged independently of the vehicle body base and has a measurement wheel equivalent to a hand-held simple track inspection vehicle that measures the track error when the length of the measurement string is 2.5 m or less. A connecting rod that couples the inspection unit to the vehicle body base with freedom in the vertical and horizontal directions, and the track inspection unit that is provided on the vehicle body base with play in the running direction and the vertical direction to play the rail. Placed and having a lifting mechanism to lift from the rail, it is the track gage unit is a two-step pulled by the towing vehicle via a connecting rod.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
As described above, according to the present invention, a track-type simple track inspection vehicle having a structure equivalent to a hand-held simple and lightweight track inspection vehicle having a measurement string length of 2.5 m or less is It is used as a unit and is provided independently from the vehicle body base of the towed track inspection vehicle, and is coupled to the vehicle body base via a connecting rod and pulled by this. Since the vehicle body base is towed by a motor car or the like, the trajectory inspection unit is towed in two stages.
Since the trajectory inspection unit is coupled to the vehicle body base with a connecting rod with a degree of freedom in the vertical and horizontal directions, the entire trajectory inspection unit can be easily moved up and down. Therefore, in the present invention, an elevating mechanism is provided on the vehicle body base side and engaged with the track inspection unit with play so that the track detection unit is lowered onto the rail and lifted from the rail.
If such a configuration is adopted, the trajectory inspection unit can be easily lowered onto the rail by the lifting mechanism to enter the measurement state, and the trajectory inspection unit can be transported in the forward state after being lifted from the rail.
As a result, the vehicle body structure can be a simple structure close to that of a hand-held simple inspection vehicle. Easy to set and release. Thereby, the efficiency of the inspection work by the tow-type track inspection vehicle can be improved.
[0007]
【Example】
FIG. 1 is a perspective view for explaining the principle of an embodiment to which the towed track inspection and measurement vehicle according to the present invention is applied. FIG. 2 is an explanatory plan view in which the lifting mechanism and the like of the towed track inspection and measurement vehicle are omitted. Fig. 4 is a side explanatory view, Fig. 4 is a front explanatory view of a towed type track inspection vehicle, and Fig. 5 is a partially enlarged explanatory view of an elevating mechanism.
1 and 2, reference numeral 30 denotes a towed track inspection vehicle. In FIGS. 1 and 2, a traction motor car that pulls the towed track inspection vehicle 30 and a simplified track for simple explanation of the structure. An elevating mechanism for moving the inspection unit 10 up and down and a measuring device are omitted. The structure of the simplified trajectory inspection unit 10 substantially corresponds to the structure of the hand-held simplified trajectory inspection vehicle, which is disclosed in JP-A-10-167055, JP-A-10-170250, and JP-A-10-110. -170251 etc. are publicly known.
[0008]
Reference numeral 11 denotes a vehicle body base 11 of the towed type track inspection vehicle 30. Two vehicle body bases 11 are arranged in the front and rear so as to be substantially parallel to the track surface by the left and right rails RL1 and RL2 (see FIG. 4). Traveling wheels 9a to 9d are provided. The vehicle body base 11 is formed as a rectangular frame so that a space S can be secured therein. The internal space S of the vehicle body base 11 is coupled with two beams provided corresponding to the left and right rails RL1 and RL2 and a coupling beam that couples the beams, as in the case of a hand-held simple track inspection vehicle. A simple orbit inspection unit 10 having an H-structured frame is arranged. The simplified trajectory inspection unit 10 and the vehicle body base 11 are coupled by a coupling rod 12 so as to be movable up and down.
The connecting rod 12 rotates in the vertical and horizontal directions between the center of the beam 13 bridged to the vehicle body base 11 in a direction perpendicular to the left and right rails and the connecting beam 3 of the H-type simplified trajectory measuring unit 10. Both are connected via possible ball joint members 14,15.
[0009]
Further, the data base 16 is mounted on the vehicle body base 11 on the side of the rear frame 11b bridged in the direction perpendicular to the left and right rails in the vehicle body base 11, as indicated by dotted lines. However, for the convenience of explanation of the front side simplified trajectory inspection unit 10, it is not shown by a solid line. The frame 11a is a front frame.
Point detection sensors (not shown) are provided on the left and right sides of the vehicle body base 11 of the towed type trajectory inspection vehicle 30, and measurement wheels 19 a (see FIG. 3) and a distance pulse sensor (not shown) that generates a distance pulse in conjunction with its rotation. However, since the point detection sensor and the distance pulse sensor are not related to the present invention, they are omitted here.
[0010]
As shown in FIGS. 1 to 4, the simple inspection unit 10 includes a reference beam 1 and a rotating beam 2 arranged corresponding to the left and right rails RL <b> 1 and RL <b> 2, and a central portion of these beams. The beams are coupled by the coupling beam 3 to form an H-shaped frame (see FIG. 2). The coupling beam 3 is composed of a rectangular tube portion (neck portion) 3a to which a spring 6 (dotted line) is inserted and a main body 3b, and the tube portion 3a advances and retracts to elastically couple the reference beam 1 and the rotating beam 2. To do.
At both ends of both beams 1 and 2 arranged corresponding to the left and right rails RL1 and RL2, a traveling wheel (height measuring wheel) 18a (see FIG. 4) that contacts the tread surface of the rail, and the head of the rail Traveling wheel portions composed of guide wheels (passage measuring wheels) 18b (refer to FIG. 4) in contact with the inner side surface (hereinafter simply referred to as the head side surface) are respectively arranged with a measurement string length L of 2.5 m. 2 corresponds to a height displacement measuring wheel (or height displacement detecting wheel) 19a (see FIG. 3) and a passage displacement measuring wheel (or street displacement detecting wheel, guide wheel (street measuring wheel) 18b in FIG. Displacement detectors formed at the center of the beam (not shown in the figure) are arranged at the center of both beams 1 and 2, respectively.
[0011]
The simple inspection unit 10 compresses the spring 6 provided inside the connecting beam 3 indicated by the dotted line and moves the rectangular tube part (neck portion) 3a to which the spring 6 is inserted to move the connecting beam 3 backward. Shrink. In this state, the simple inspection unit 10 is set on the left and right rails RL1 and RL2, and thereby, the running deviation and the elevation deviation are measured based on the measurement string of 2.5 m in the running state. For this purpose, a drive cylinder 7 (see FIG. 2) for compressing the spring 6 is provided on the main body 3b of the coupling beam 3, and the rod 7a side is coupled to the cylindrical portion (neck portion) 3a. The drive cylinder 7 is driven backward by the data processing device 16, and the rod 7a advances by the bias of the spring 6. The receding of the rectangular tube portion 3a, which is performed to set the simple measurement unit 10 on the left and right rails, may be performed by a handle operation without using the driving cylinder 7. In this case, the nut is fixed to the cylinder portion 3a and the threaded rod is fixed to the main body 3b so that it can be rotated by the bearing and screwed to the fixing nut, and the rod is rotated by the handle. This can be easily realized by the advance / retreat mechanism of the tube portion 3a.
[0012]
In FIG. 4, reference numeral 20 denotes an elevating mechanism for elevating the simple measurement unit 10, and as shown in the side view of FIG. 3, the elevating mechanism vehicle body 10 is attached to the vehicle body base 11 via attachment frames 11c and 11d. ing. And the simple type | formula track | orbit measurement unit 10 is raised / lowered manually with respect to a rail by rotation of the handle | steering-wheel 25 (refer FIG. 4). When the simple inspection unit 10 is lowered onto the rail, the drive cylinder 7 is driven backward, the spring 6 is compressed, and the cylindrical portion (neck portion) 3a of the coupling beam 3 is in the retracted state. In this state, each guide wheel (pass measurement wheel) 18b shown in FIG. 4 is inside the left and right rails RL1 and RL2 rails and is not in contact with each other, and the side surfaces of the left and right rails RL1 and RL2 rails. Although located in the foreground, both end portions of the traveling wheel (height / height measuring wheel) 18a are positioned so as to get on the heads of the left and right rails RL1 and RL2.
As shown in FIGS. 2 and 3, two hanger plates 17 stand up on the reference beam 1 and the rotating beam 2 of the H-shaped frame of the simple trajectory inspection unit 10, respectively, at a predetermined position approximately at the center. It is fixed at a distance. The finger 23c (see FIGS. 4 and 5) of the lifting mechanism 20 is engaged with the hanger plate 17, and the simple measurement unit 10 is lifted and lowered by the lifting mechanism 20 via the hanger plate 17.
[0013]
4 and 5 are explanatory views of the lifting mechanism. In FIG. 4, a pair of lifting mechanisms 20 is provided on the vehicle body base 11 corresponding to the left and right rails RL1 and RL2. The attachment frames 11c and 11d are fixed on the vehicle body base 11 (the frames 11a and 11b) so as to correspond to the left and right rails RL1 and RL2. The left and right lifting mechanisms 20 are integrally fixed to the vehicle body base 11 through the mounting frames 11c and 11d, respectively.
As shown in the partially cutaway view of FIG. 4, the left / right lifting mechanism 20 includes a rotating cylinder 22 inserted into the case 21 and a vertical movement shaft 23 inserted into the rotating cylinder 22. The vertical movement shaft 23 is a shaft that is threaded and penetrates the case 21. The rotary cylinder 22 has nut bearings 22 a and 22 b (see FIG. 5) fitted on the vertical movement shaft 23 up and down at the top and bottom. It is fixed. The lower nut bearing 22b is supported by a bearing rotatably on the case. The vertical movement shaft 23 is rotatably supported by the case 21 by a nud bearing 24 provided at the head of the case 21 and a nut bearing 22b on the lower side of the rotary cylinder 22 and screwed into a screw of the vertical movement shaft 23. ing.
Note that a bevel gear 22 b is mounted on the nut bearing 22 a on the upper side of the rotating cylinder 22 and meshes with the bevel gear of the connecting rod 26. The other bevel gear of the connecting rod 26 meshes with the nut bearing 22a on the upper side of the rotary cylinder 22 of the other lifting mechanism 20 in the set. As a result, when the rotating cylinder 22 of one of the lifting mechanisms 20 rotates, the rotating cylinder 22 of the other lifting mechanism 20 rotates in conjunction with it. The rotary cylinder 22 rotates in the reverse direction when the vertical movement shaft 23 of any one of the lifting mechanisms 20 rotates. Thereby, the up-and-down moving shaft 23 of both the raising and lowering mechanisms 20 moves up and down in conjunction with each other.
[0014]
Therefore, by attaching the handle 25 to the head of the vertical movement shaft 23 protruding upward from the case 21 and rotating the handle 25, the vertical movement shaft 23 of the pair of lifting mechanisms 20 is moved up and down in conjunction with each other. The arm 23b provided on the distal end side of the vertical movement shaft 23 is moved up and down in conjunction with each other.
Note that the handle 25 indicated by the alternate long and short dash line is detachable at the head of the vertical movement shaft 23.
[0015]
As shown in FIG. 5, the vertical movement shaft 23 is an arm of the lifting mechanism 20, and a hand 23 a is attached to the lower end of the arm of the vertical movement shaft 23. The hand 23a is divided into two forks on the tip side, and a finger 23c is attached to each tip side. As for the hand 23a, the same type of hand 23a is also provided on the back side at a predetermined distance (see FIG. 4), and they are coupled with a predetermined distance by a coupling member 23b. The finger 23c is bridged to the two front and back hands 23a.
The finger 23c bridged between the two hands 23a is inserted into the rectangular opening 17a provided in the hanger plate 17 and penetrates through it. The finger 23c and the opening 17a have play in the front-rear and up-down directions, and the opening 17a is larger than the size of the finger 23c. The size of the opening 17a is at least three times the size of the finger 23c. Thereby, stable engagement is ensured even when the inspection vehicle 30 is in the traveling state.
[0016]
As described above, since the simple measurement unit 10 corresponding to the lightweight hand-held simple type track inspection vehicle is arranged to be pulled by the vehicle body base 11, the weight is light and the simple measurement unit 10 can be easily used. Can be moved up and down.
As a result, the simple inspection unit 10 can be easily set and released from the rail, and the inspection operation can be improved.
[0017]
As described above, in the embodiment, an example in which the measurement string is 2.5 m is given, but it is needless to say that the measurement string may be a 2 m string, a 1.25 m string, or the like.
In the embodiment, the simple inspection unit 10 is lifted and lowered by the handle, but the lift is not limited to the handle operation.
[0018]
【The invention's effect】
As described above, according to the present invention, a track-type simple track inspection vehicle with a structure equivalent to a hand-held simple and lightweight track inspection vehicle with a measurement string length of 2.5 m or less is tracked. Using the inspection unit, this is provided independently of the vehicle body base of the towed track inspection vehicle, coupled to the vehicle body base via a connecting rod and pulled to this, and the track inspection unit can be easily moved by the lifting mechanism. It is possible to enter the measurement state by lowering on the rail, and the trajectory inspection unit can be transported in the forward state after being lifted from the rail.
As a result, the vehicle body structure can be a simple structure close to that of a hand-held simple inspection vehicle. Easy to set and release. Thereby, the efficiency of the inspection work by the tow-type track inspection vehicle can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view for explaining the principle of an embodiment to which a towed track inspection vehicle of the present invention is applied.
FIG. 2 is an explanatory plan view in which a lifting mechanism and the like of a towed type track inspection vehicle are omitted.
FIG. 3 is an explanatory side view of a towed track inspection vehicle.
FIG. 4 is an explanatory front view of a towed trajectory inspection vehicle.
FIG. 5 is a partial enlarged explanatory view of an elevating mechanism.
[Explanation of symbols]
1 ... reference beam, 2 ... rotating beam, 3 ... couple beam,
5A, 5B ... displacement detector,
6 ... spring, 7 ... drive cylinder,
10 ... Simple inspection unit, 11 ... Body base,
12 ... Connecting rod, 13 ... Beam,
14, 15 ... Ball joint,
16 ... Data processing device, 17 ... Hanger board,
18a ... running wheel (high / low measuring wheel),
18b ... Guide wheel (street measurement wheel),
19a... High / low displacement measuring wheel (or high / low displacement detecting wheel),
19b ... Displacement measuring wheel (or street displacement detecting wheel),
20 ... Lifting mechanism, 21 ... Case,
22 ... Rotating cylinder, 23 ... Vertical movement axis,
24 ... Nad bearing, 25 ... Handle,
26 ... connecting rod, 30 ... towed track inspection vehicle,
RL1, RL2 ... Rails.

Claims (2)

In a towed track inspection vehicle that runs on the left and right rails with running wheels and is towed by a tow vehicle,
A vehicle body base having the traveling wheel and towed by the towing vehicle, and a plurality of measurement wheels having a width substantially equal to the width of the rail, and one of the measurement wheels as the traveling wheel on the rail. Corresponds to a hand-held simple track inspection vehicle that runs independently of the vehicle body base and measures the trajectory error when the measurement string length is 2.5 m or less and is arranged on the lower side inside the vehicle body base. A trajectory inspection unit provided independently of each other, a connecting rod that couples the trajectory inspection unit to the vehicle body base with a degree of freedom in the up, down, left, and right directions; with play engage in the vertical direction and a lifting mechanism for lifting the track gage unit from the carrying and the rail on the rail, the track gage unit via the connecting rod Tractor track Kensokusha, characterized in that the two stages driven by serial towing vehicle. The track gage unit is coupled between the beams provided to correspond to the left and right rails, has a frame of the combined H formed by the bond beam whose length stretch, the coupling beam is the connection The towed track inspection according to claim 1, wherein the lift mechanism is coupled to the vehicle body base by a rod , and the lifting mechanism is provided in a pair corresponding to the left and right rails. car.

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