JP2003237576A - Traction type vehicle for inspecting track - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traction type vehicle for inspecting track with a simple structure of the vehicle body by using a hand-pushed simple vehicle for inspecting track with the structure corresponding to a hand-pushed type simple and light weight vehicle for inspecting track with a small measuring chord as a unit for inspecting track, capable of improving efficiency of inspection work and suitable for inspecting especially the subway or the like. <P>SOLUTION: The pushed-type simple vehicle for inspecting track with the structure corresponding to the pushed-type simple and lightweight vehicle for inspecting track with the measuring chord of not more than 2.5 m is used as the unit for inspecting track. It is provided with a vehicle body base of the traction-type vehicle for inspecting track independently and towed connecting with the vehicle body base through a connecting rod. The unit for inspecting track is easily lowered on the rail by a lifting mechanism to go into a measuring state and can be easily transported in dead-heading state after lifting from the rail. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a towed track inspection vehicle, and more particularly, to a hand-operated track inspection vehicle having a structure corresponding to a simple and lightweight track inspection vehicle of a small push-button type. The present invention relates to a towed track inspection vehicle that can be used as a track inspection unit to simplify the body structure and improve the efficiency of inspection work.

[0002]

2. Description of the Related Art In a track forming a railroad track, left and right rails are deviated from a reference position due to train operation or the like. This excursion is called out-of-track, out of order, up and down,
Five items are specified: out of order, out of level, and out of order. In the main line area where a large number of commercial trains operate, vehicles of almost the same standard as commercial vehicles constitute a large-scale track inspection vehicle, which is towed by electric or diesel locomotives and run at high speed. Let's let each orbital deviation be measured. However, a large-scale inspection vehicle is not suitable for out-of-the-way areas where trains are operated less frequently, or for side lines inside stations, so a medium- or small-sized inspection device (inspection vehicle) has been developed, or It's being used. In addition, a hand-held simple track inspection vehicle that is driven at low speed has also been put into practical use in order to perform simple inspections.

[0003]

This type of inspection vehicle has been widely used in ground railways, but in subways and the like, the use of a medium or small-sized inspection device is not possible due to the relationship between track and running speed. It is difficult and difficult to turn around, and there is a problem that small inspection vehicles must be improved or developed in response to medium speed running. Therefore, it is conceivable to use the above-mentioned hand-operated simple type track inspection vehicle as a simple one, but in the case of the hand-operated simple type track inspection vehicle, the measurement string is 1.25 m, Since the inspection is carried out at a pushing speed, there is a problem that the inspection takes too long.

As a solution to such a problem, there is a towed starting inspection vehicle equipped with a dedicated processing device, which has a plurality of height sensors and a plurality of high and low sensors so as to form a 2.5 m measuring string. And a measuring mechanism for arranging, and has a structure of a trolley in which two or three measuring units (measurement wheels) having a height sensor and a passing sensor are provided along the left and right rails. The processing equipment is manufactured as a dedicated inspection vehicle. This inspection vehicle has a configuration in which the measurement unit is lowered at the start of measurement and is raised at the end of measurement for forwarding. Moreover, the measuring wheels are relatively heavy, and therefore four or more measuring units (measuring wheels) have to be manually lifted up and down with respect to the rail, which is not good workability. In addition, since the number of vehicles is not so large as compared with the hand-operated simple type track inspection vehicle, it is relatively expensive and has a disadvantage of being larger than the hand-operated simple type track inspection vehicle.
An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a hand-operated simple track inspection vehicle having a structure corresponding to a hand-operated simple and lightweight track inspection vehicle with a small measurement string. The purpose of the present invention is to provide a towed track inspection vehicle that can be used as a track inspection unit to have a simple structure and improve the efficiency of inspection work, and is particularly suitable for inspection of subways.

[0005]

SUMMARY OF THE INVENTION The structure of the present invention for achieving the above object is a tractor-type track inspection vehicle that travels on left and right rails by traveling wheels and is towed by a towing vehicle. 1. The length of the measurement string that runs on the rail with a width substantially equal to the width of the rail and the body string that is towed by the vehicle and that is arranged on the lower side inside the body base and that is 2.
A track inspection unit that has a measuring wheel equivalent to a hand-held simple track inspection vehicle that measures track deviation at 5 m or less and is installed independently of the vehicle body base. A connecting rod that connects to the body base,
An elevating mechanism which is provided on the vehicle body base and engages with the track inspection unit with play in the running direction and the vertical direction so as to mount the track inspection unit on the rail and lift it from the rail.

[0006]

As described above, according to the present invention, a hand-operated simple type track having a structure corresponding to a hand-operated, simple and lightweight track inspection vehicle having a measurement string length of 2.5 m or less. A track inspection unit is used for the inspection vehicle, which is provided independently of the vehicle body base of the towed track inspection vehicle, and is connected 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 track inspection unit is towed in two stages. Since the orbit inspection unit is connected to the vehicle body base with the connecting rod with the freedom of up, down, left and right, the entire orbit 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 to engage with the track inspection unit with play so that the track inspection unit is lowered onto the rail and lifted from the rail. With such a configuration, the track inspection unit can be easily lowered to the rail by the elevating mechanism to enter the measurement state, and can be lifted from the rail and easily transported in the forwarding state. As a result, the body structure can be made a simple structure similar to that of a hand-held simple inspection vehicle, and faster measurement can be performed than the hand-held type. Easy to set and release. As a result, the efficiency of inspection work by the towed track inspection vehicle can be improved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view for explaining the principle of an embodiment to which the towed track inspection vehicle of the present invention is applied, and FIG. 2 is a plan view in which the lifting mechanism of the towed track inspection vehicle is omitted. Figure, Figure 3
FIG. 4 is a side view thereof, FIG. 4 is a front view of a towed track inspection vehicle, and FIG. 5 is a partially enlarged view of a lifting mechanism. In FIGS. 1 and 2, reference numeral 30 is a towed track inspection vehicle, and in FIGS. 1 and 2, in order to briefly explain the structure,
A traction motor car for pulling the towed track inspection vehicle 30, an elevating mechanism for vertically moving the simplified track inspection unit 10, and a measuring device are omitted. The structure of the simplified track inspection unit 10 substantially corresponds to the structure of a hand-held simplified track inspection vehicle, which is disclosed in JP-A-10-16705.
5, JP-A-10-170250, JP-A-10-17
Published by 0251 and the like and is publicly known.

Reference numeral 11 denotes a vehicle body base 11 of the towed track inspection vehicle 30. The vehicle body base 11 includes left and right rails R.
Two running wheels 9a to 9d are provided at the front and rear so as to be substantially parallel to the track surface of L1 and RL2 (see FIG. 4). The vehicle body base 11 is formed as a rectangular frame so that the space S can be secured therein. In the internal space S of the vehicle body base 11, two beams provided corresponding to the left and right rails RL1 and RL2 are coupled to each other by a coupling beam that couples these beams, similarly to a hand-held simple track inspection vehicle. The simplified track inspection unit 10 having the H-structured frame is arranged. The simple track inspection unit 10 and the vehicle body base 11 are joined by a joining rod 12 so as to be able to move up and down. The connecting rod 12 is the center of the beam 13 bridged to the vehicle body base 11 at right angles to the left and right rails and the simplified track inspection unit 1 of the H structure.
The ball joint members 14 and 15 which are rotatable in the up-down and left-right directions are connected to the connecting beam 3 of 0, and both are connected.

The data processing device 16 (see FIG. 2) is attached to the vehicle body base 11 as shown by a dotted line.
1 is mounted on the side of the rear frame 11b that is bridged in a direction perpendicular to the left and right rails, but is not shown by a solid line for convenience of description of the front simplified track inspection unit 10. 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 track inspection vehicle 30, and measurement wheels 19a (FIG. 3), and a distance pulse sensor (not shown) for generating a distance pulse in conjunction with the rotation thereof is provided. However, since the point detection sensor and the distance pulse sensor are not related to the present invention, they are omitted here.

As shown in FIGS. 1 to 4, the simple inspection unit 10 includes a reference beam 1 and a rotating beam 2 which are arranged corresponding to the left and right rails RL1 and RL2, and a central portion of these beams. The beams are coupled by the coupling beams 3 to form an H-shaped frame (see FIG. 2). The connecting beam 3 is
It is composed of a rectangular tubular portion (neck portion) 3a into which a spring 6 (dotted line) is inserted and a main body 3b, and the tubular portion 3a advances and retreats to elastically connect the reference beam 1 and the pivoting beam 2. At both ends of both beams 1 and 2 arranged corresponding to the left and right rails RL1 and RL2, running wheels (high and low measurement wheels) 18a (see FIG. 4) that come into contact with the tread surface of the rail and the head of the rail are provided. Traveling wheel portions, each of which is composed of a guide wheel (passage measuring wheel) 18b (see FIG. 4) contacting an inner side surface (hereinafter, simply referred to as a head side surface), are arranged with a measurement chord length L of 2.5 m.
The center of 2 corresponds to a high / low displacement measuring wheel (or high / low displacement detecting wheel) 19a (see FIG. 3) and a passing displacement measuring wheel (or passing displacement detecting wheel, guide wheel (passing measuring wheel) 18b in FIG. 4). (Not shown in the figure) provided at the central portion of the beam. Displacement detecting portions are provided at the central portions of both beams 1 and 2, respectively.

The simple inspection unit 10 compresses a spring 6 provided inside a connecting beam 3 shown by a dotted line to retract a rectangular tubular portion (neck) 3a to which the spring 6 is attached and join the same. The beam 3 is contracted. 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 measured string of 2.5 m in the running state. For that purpose, a drive cylinder 7 (see FIG. 2) for compressing the spring 6 is provided in the main body 3b of the connecting beam 3, and its rod 7a side is connected to the tubular portion (neck) 3a. The drive cylinder 7 is driven backward by the data processing device 16 and the rod 7a thereof is moved forward by the bias of the spring 6. The retreat of the rectangular tube portion 3a for setting the simple inspection unit 10 on the left and right rails may be performed by the handle operation without using the drive cylinder 7. In this case, a nut is fixed to the tubular portion 3a and a threaded rod is fixed to the main body 3b by a bearing so that the rod can be rotated. This can be easily realized by the advancing / retreating mechanism of the tubular portion 3a.

In FIG. 4, reference numeral 20 denotes an elevating mechanism for elevating and lowering the simple inspection unit 10. As shown in the side view of FIG. 3, the elevating mechanism body 10 has mounting frames 11c and 11c.
It is attached to the vehicle body base 11 via d. And
The simplified track inspection unit 10 is manually moved up and down with respect to the rail by rotating the handle 25 (see FIG. 4). In addition,
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 tubular portion (neck portion) 3a of the coupling beam 3 is retracted. In this state, the guide wheels (passage measuring wheels) 18b shown in FIG. 4 are inside the left and right rails RL1 and RL2, are not in contact with each other, and are on the side surfaces of the left and right rails RL1 and RL2 rails. Although located on the front side, both ends of the traveling wheel (height measuring wheel) 18a are positioned so as to ride on the heads of the left and right rails RL1 and RL2. As shown in FIGS. 2 and 3, two hanger plates 17 stand upright on the reference beam 1 and the rotating beam 2 of the H-shaped frame of the simplified orbit inspection unit 10, and are set at approximately the center. It is fixed at a distance. The fingers 23c (see FIGS. 4 and 5) of the elevating mechanism 20 are engaged with the hanger plate 17, and the elevating mechanism 20 elevates and lowers the simple inspection unit 10 via the hanger plate 17.

4 and 5 are explanatory views of the raising / lowering mechanism. In FIG. 4, the raising / lowering mechanism 20 is a vehicle body base 11.
Above, one set is provided corresponding to the left and right rails RL1 and RL2. The mounting frames 11c and 11d are fixed on the vehicle body base 11 (the frames 11a and 11b thereof) 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 via the mounting frames 11c and 11d, respectively. As shown in the partial cutaway view of FIG. 4, the left and right lifting mechanisms 20 include a rotating cylinder 22 inserted in a case 21,
It has a vertical movement shaft 23 inserted in the rotary cylinder 22. The vertical movement shaft 23 is a shaft that is threaded and penetrates the case 21, and the rotary cylinder 22 vertically moves the vertical movement shaft 2.
Nut bearings 22a and 22b (see FIG. 5) that are fitted in 3 are fixed to the top and bottom. The lower nut bearing 22b is rotatably supported by the case on the case. The vertical movement shaft 23 is formed by a nut bearing 24 provided on the head of the case 21 and a nut bearing 22b on the lower side of the rotary cylinder 22, which are screwed into the screw of the vertical movement shaft 23.
It is rotatably supported by. A bevel gear 22b is mounted on the nut bearing 22a on the upper side of the rotary 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 upper nut bearing 22a of the rotary cylinder 22 of the other lifting mechanism 20 of the set. As a result, when the rotary cylinder 22 of one of the lifting mechanisms 20 rotates, the rotary cylinder 22 of the other lifting mechanism 20 rotates in conjunction. The rotary cylinder 22 rotates in the opposite direction when the vertical movement shaft 23 of either one of the lifting mechanisms 20 rotates. As a result, the vertical movement shafts 23 of the both lifting mechanisms 20 move up and down in conjunction with each other.

Therefore, the handle 25 is attached to the head of the vertical moving shaft 23 protruding upward from the case 21.
When 5 is rotated, the vertical movement shaft 23 of the pair of lifting mechanisms 20 is interlocked to move up and down, and the arm 23b provided on the prior application side of the vertical movement shaft 23 is interlocked and lifted. The handle 25 shown by the alternate long and short dash line is attachable to and detachable from the head of the vertical movement shaft 23.

As shown in FIG. 5, the vertical moving shaft 23 serves as an arm of the lifting mechanism 20.
A hand 23a is attached to the lower tip of the arm. The hand 23a is bifurcated on the tip side and has a finger 23c attached to each tip side. As for the hand 23a, the same type of hand 23a is also provided on the back side with a certain distance apart (see FIG. 4), and they are joined by a joining member 23b with a predetermined distance. In addition,
The finger 23c is bridged by two hands 23a on the front and back. The finger 23c bridged by the two hands 23a is inserted into the rectangular opening 17a provided in the hanger plate 17,
It penetrates this. The fingers 23c and the opening 17a have play in the front-rear direction and the vertical direction, and
a is larger than the size of the finger 23c. Its size is
The width of the opening 17a is three times or more the size of the finger 23c. This ensures stable engagement even when the inspection vehicle 30 is in a traveling state.

As described above, the simple inspection unit 10 corresponding to the lightweight hand-operated simple type track inspection vehicle is mounted on the vehicle body base 11
Since the interior is pulled in, the weight is light and the simple inspection unit 10 can be easily moved up and down. As a result, the simple inspection unit 10 can be easily set on the rail and released, and the inspection work can be improved.

As described above, in the embodiment, an example in which the measured string is 2.5 m is given.
Of course, it may be a 25 m string or the like. Further, in the embodiment, the simple inspection unit 10 is provided by the handle.
It goes up and down, but it goes without saying that the up and down is not limited to the operation of the handle.

[0018]

As described above, according to the present invention, a simple hand-operated track having a structure corresponding to a hand-operated, simple and lightweight track inspection vehicle with a measurement string length of 2.5 m or less. The track inspection unit uses a track inspection unit, which is provided independently of the vehicle body base of the towed track inspection vehicle, is connected to the vehicle body base via a connecting rod, and is towed by the track inspection unit. The elevating mechanism can easily lower the rail to enter the measurement state, and can raise the rail to easily transport the track inspection unit in the forwarding state. As a result, the body structure can be made a simple structure similar to that of a hand-held simple inspection vehicle, and faster measurement can be performed than the hand-held type. Easy to set and release. As a result, the efficiency of inspection work by the towed track inspection vehicle can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating 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 of a towed track inspection vehicle is omitted.

FIG. 3 is a side view of a towed track inspection vehicle.

FIG. 4 is a front explanatory view of the towed track inspection vehicle.

FIG. 5 is a partially enlarged explanatory view of a lifting mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Reference beam, 2 ... Rotation beam, 3 ... Connection beam, 5A, 5B ... Displacement detection part, 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 plate, 18a ... Running wheel (height measuring wheel), 18b ... Guide wheel (passage measuring wheel), 19a ... Height displacement measuring wheel (or height displacement detecting wheel), 19b ... Displacement measuring wheel (or Road displacement detection wheel), 20 ... Elevating mechanism, 21 ... Case, 22 ... Rotating cylinder, 23 ... Vertical movement axis, 24 ... Nud bearing, 25 ... Handle, 26 ... Connecting rod, 30 ... Traction type track inspection vehicle, RL
1, RL2 ... Rail.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuya Tanabe             Hitachi Electronics, 3-16-3 Higashi, Shibuya-ku, Tokyo             Engineering Co., Ltd. (72) Inventor Tetsuo Yamada             Hitachi Electronics, 3-16-3 Higashi, Shibuya-ku, Tokyo             Engineering Co., Ltd. F term (reference) 2F069 AA17 BB25 DD12 GG02 GG12                       GG72 HH02 JJ05 LL04 MM04                       MM32

Claims (2)

[Claims] 1. Traveling wheels on the left and right rails,
A towed track inspection vehicle towed by a tow vehicle, comprising: a vehicle body base towed by the tow vehicle and a rail that travels on the rail with a width substantially equal to the width of the rail and is lower inside the vehicle body base. And the length of the measurement string is 2.
A track inspection unit that has a measuring wheel equivalent to a hand-held simple track inspection vehicle that measures track deviations at 5 m or less, and a track inspection unit that is provided independently of the vehicle body base. With a connecting rod that is coupled to the vehicle body base with a certain degree of play, and engages with the track inspection unit provided on the vehicle base with play in the traveling direction and the vertical direction so that the track inspection unit is placed on the rail and the rail. A towed track inspection vehicle having an elevating mechanism for lifting from above. 2. The track inspection unit includes a frame having an H structure in which beams provided corresponding to the left and right rails are coupled to each other and coupled by a coupling beam whose length extends and contracts. The connecting beam is connected to the vehicle body base by the connecting rod, and the elevating mechanism is provided in a pair so as to be arranged on the left and right corresponding to the left and right rails, and these operate in conjunction with each other. Traction type track inspection vehicle.