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1. 发明专利

JPS63177008A APPARATUS FOR MEASURING UNEVENNESS OF TREAD SURFACE OF RAIL 失效
公开(公告)号：JPS63177008A
公开(公告)日：1988-07-21
申请号：JP803987
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , SATO YOSHIHIKO , MATSUMOTO KOICHI , YAMADA TETSUO , SUGIMURA AKIJI , ITO MASAYUKI
IPC分类号： G01B11/24 , E01B35/00 , G01B21/00 , G01B21/20
摘要： PURPOSE:To enhance measuring accuracy and to achieve handling convenience, by using a detector using laser beams as a reference line and measuring an interval on the basis of the change in electrostatic capacity. CONSTITUTION:A reference setting part 20 is fixed to a rail 20 and height reference laser beam 24 is set at the position definite in a height from the tread surface of the rail 1. An inspection car body 8 is constituted by mounting a gap sensor 10 detecting the height of the truck self-runnable on the rail to the tread surface of the rail, an image sensor 11 receiving the beam 24 to detect the height change quantity of the truck and a rotary encoder recording the moving distance of the truck. The output signals of the sensors 10, 11 are inputted to CPU to calculate the data of the interval between the sensor 10 and the tread surface of the rail and the positional variation data of the chasis to the beam 24 and the difference between both data is operated and outputted as a value showing the real unevenness of the tread surface of the rail. At the same time, the data signal of the angle of rotation of an axle obtained by the rotary encoder is taken in a CPU and converted to the moving distance of the chasis to be recorded.

2. 发明专利

JPH0543247B2 失效
公开(公告)号：JPH0543247B2
公开(公告)日：1993-07-01
申请号：JP803987
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , SATO YOSHIHIKO , MATSUMOTO KOICHI , YAMADA TETSUO , SUGIMURA SHUJI , ITO MASAYUKI
IPC分类号： G01B11/24 , E01B35/00 , G01B21/00 , G01B21/20

3. 发明专利

JPS62222111A METHOD FOR MEASURING DEVIATION OF LONG WAVELENGTH TRACK 失效
公开(公告)号：JPS62222111A
公开(公告)日：1987-09-30
申请号：JP5252386
申请日：1986-03-12
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , ITO MASAYUKI , YAMADA TETSUO , KISHIMOTO SATORU , SUGIMURA SHIYUUJI
IPC分类号： G01B21/00 , B61K9/08
摘要： PURPOSE:To enable inexpensive and safe measurement with good accuracy, by connecting two dual type vehicles and providing a relative displacement detection mechanism to the connection part. CONSTITUTION:Vehicle bodies 1, 2 connected advance in the direction shown by an arrow on a rail 3 and the up-and-down displacement between the vehicle bodies 1, 2 and the axle boxes of wheels is detected by a detector 6. A detector 7 detects up-and-down displacement from the relative displacements between the vehicle bodies 1, 2 and detectors 8-1, 8-2 mounted at an interval H in an up-and-down direction detect front-and-back displacements x1, x2. If the distance from the left end of the vehicle body 2 to the axle box 5-4 is set to lA, the distance up to the axle box of the wheel 4-5 to lB and the distances from the bottom side of the vehicle body 2 to the axle box 5-4 and the axle box of the wheel 4-5 to (c), (d), the height differences hA, hB between the extending line 9 of the bottom side of the vehicle body 1 and the bottom sides of the vehicle body 2 at the positions of the axle box 5-4 and the axle box of the wheel 4-5, height deviation (h) when wheels 4-1, 4-2, 4-4 are used and height deviation hL when wheels 4-1, 4-3, 4-5 are used can be respectively operated.

4. 发明专利

JPS62222110A APPARATUS FOR MEASURING PASSAGE OF LONG WAVELENGTH 失效
公开(公告)号：JPS62222110A
公开(公告)日：1987-09-30
申请号：JP5252286
申请日：1986-03-12
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , KISHIMOTO SATORU , ITO MASAYUKI , YAMADA TETSUO , SUGIMURA SHIYUUJI , TAKENAKA YASUO
IPC分类号： G01B21/00 , B61K9/08
摘要： PURPOSE:To enable measurement even during high speed running of 300km or more, by defining the distance between the perpendicular facing surface to the side surface of a rail at one point among two points of a rail surface spaced apart by a base line length from each other and the other point as passage and continuously measuring this passage. CONSTITUTION:The rail replacements (a), (b) based on a vehicle body and the angle phi of revolution of the vehicle body to the reference perpendicular surface of a gyroscope are converted into voltages by a gyro-selsyn 2' while said voltages are converted into digital values by an A/D converter 19. Subsequently, (b-a)/l (wherein l is the segment connecting two points on the side surface of a rail), the angle phi formed by the segment (l) and the long axis of the vehicle body and the angle theta formed by the segment (l) and an absolute reference perpendicular surface are respectively calculated by an operator 20, an operator 21 and an operator 22, and the direction of the perpendicular facing surface at each measuring point on the side surface of the rail is calculated by a moving average operator 25. In this case, operations are performed in synchronous relation to the distance pulse generated at every definite running distance by a pulse generator 33. The angle thetai' formed by the segment (l) and the reference perpendicular surface is calculated by an operator 26 and long wavelength passage ai=ltanthetai' is calculated by an operator 27. The passage ai is outputted as it is and, at the same time, sent to a difference operator 36 and difference DELTAai is calculated and converted into an analogue signal by a D/A converter 31 to be outputted.

5. 发明专利

DE3508337A1 Device for the electromagnetic measurement of a load 未知
公开(公告)号：DE3508337A1
公开(公告)日：1985-11-21
申请号：DE3508337
申请日：1985-03-08
申请人： JAPAN NATIONAL RAILWAY , HITACHI ELECTR ENG , HITACHI LTD
发明人： KASHIWAYA KENJI , TAKESHITA KUNIO , ONO TOSHIYUKI , ITO MASAYUKI , SUGIMURA AKIJI , YAMADA TETSUO
IPC分类号： G01L1/00 , G01L1/12 , G01L3/10 , G01N27/82 , G01R33/12
摘要： Device for the electromagnetic measurement of a load, in which the load is measured in a magnetic component by detecting a magnetic anisotropy of the component, which is based on the fact that the magnetism of the component is altered by the magnetostrictive effect when the load occurs in the component. This device has measuring heads which are used to form a magnetic circuit to detect the magnetic anisotropy by direct contact with the component and are in the form of end sections of magnet cores of two excitation windings and a measuring winding or of an excitation coil and two measuring windings. The end sections are constructed in the shape of a hemisphere.

6. 发明专利

JPH10170250A OSCILLATING MECHANISM OF MEASURING FLAME IS SIMPLE MEASURING CAR 失效
公开(公告)号：JPH10170250A
公开(公告)日：1998-06-26
申请号：JP34666496
申请日：1996-12-10
申请人： HITACHI ELECTR ENG
发明人： HIROKAWA HIDEO , UENO YOSHIAKI , YAMADA TETSUO , KOHITSU MINORU
IPC分类号： G01B21/00 , B61K9/08
摘要： PROBLEM TO BE SOLVED: To prevent variable running directions of a simple measuring car from generating data mismatch of passing distance, by journalling the center parts of a reference beam and a rotating beam to both ends of the connection beam, respectively, enabling the both beams to oscillate, and oscillating both beams in the same direction to be parallel each other when the measuring car passes through curve part of an orbit. SOLUTION: By changing a fixed reference beam to a rotating beam which can oscillate, and journalling combining blocks 132a, 132b at both ends of a combining beam 13' to combining plates 121 on the central areas of both rotating beams 12A, 12B, respectively, both rotating beams 12A, 12B can oscillate. When a simple measuring car comes into linear part and passes through curve part, both rotating beams 12A, 12B oscillate in the same direction to be parallel each other, one rotating beam 12A measures passing distance of a rail RL1, and another rotating beam 12B measures the point of a rail RL2 in the point. When the car comes from the opposite direction, rotating beams 12A, 12B also measures them and both data is coincided.

7. 发明专利

JPH0528763B2 失效
公开(公告)号：JPH0528763B2
公开(公告)日：1993-04-27
申请号：JP4713086
申请日：1986-03-04
申请人： HITACHI ELECTR ENG
发明人： ITO MASAYUKI , YOSHIDA NOBUYUKI , ITO NIJIO , YAMADA TETSUO
IPC分类号： G01B7/00 , B60L3/08 , G01B11/00 , G01C22/00

8. 发明专利

JPS62204116A POSITION DETECTING DEVICE FOR VEHICLE 失效
公开(公告)号：JPS62204116A
公开(公告)日：1987-09-08
申请号：JP4713086
申请日：1986-03-04
申请人： HITACHI ELECTR ENG
发明人： ITO MASAYUKI , YOSHIDA NOBUYUKI , ITOU FUJIO , YAMADA TETSUO
IPC分类号： G01B7/00 , B60L3/08 , G01B11/00 , G01C22/00
摘要： PURPOSE:To obtain a stable, accurate detection signal by fixing the number of projection pulses to each reflecting plate to 3 or 4 without reference to a speed by utilizing distance pulses, and minimizing projection pulses to places other than reflecting plates. CONSTITUTION:A distance pulse generator 2 coupled directly with wheels 1 generates distance pulses (a) at constant intervals of distance proportional to the rotating speed of the wheel 1, those pulses are passed through a waveform shaping circuit 3, and the pulse intervals are so adjusted by a variable counter circuit 4 so that three or four pulses are generated to the width of the reflecting plate 10. The pulses (b) are passed through a differential pulse generating circuit 6 and increased in power level by a driver 7, so that a light emitting element 8 emits light pulses (c). A photodetection part detects and obtains only pulses synchronized with the synchronizing pulses (b) among emitted light pulses (d) through a synchronous detector 16. Then, a decision circuit 14 outputs a detection signal indicating that there is the reflecting plate from a terminal 15 with two continuous pulses.

9. 发明专利

JPH05157548A MEASURING METHOD FOR DEVIATION OF TRACK 失效
公开(公告)号：JPH05157548A
公开(公告)日：1993-06-22
申请号：JP34793091
申请日：1991-12-03
申请人： HITACHI ELECTR ENG
发明人： KISHIMOTO SATORU , UENO YOSHIAKI , YAMADA TETSUO
IPC分类号： B61K9/08 , G01B21/00
摘要： PURPOSE:To make it possible to measure the amount of the irregularities of a rail with repect to the length of a chord, which is longer than a measuring chord, by synthesizing the data of the displacement amounts, which are measured with four displacement sensors provided on mesuring trucks of two-truck method, and performing correction. CONSTITUTION:Two displacement sensors for detecting the displacements in height and right and left of a rail with respect to a reference line B are provided on two trucks of track measuring trucks, respectively. The mutual intervals are made to be 11, 12, and 11 (12=K1, where K>1), and a measuring chord having the length of 211+12 is constituted. The section between measuring points P and V is measured by the first measurement, and the displacement amounts at measuring points (p), (r), (u) and (v) with respect to the reference line B are obtained. The measuring truck is moved, and the section between the measuring points (r) and (q) is measured by the second measurement. The displacement amounts at the measuring points (r), (t), (v) and (q) with respect to the reference line B are obtained. Then, both displacement amount data are synthesized, and the displacement amount caused by the arc of the rail between the measuring points (t) and (u) is obtained. The sisplacement amount of an intermediate point (m) with respect to the chord forming the chord length of 311+12=L between the measuring points (p) and (q) is obtained.

10. 发明专利

JP2001130408A TRACTION TYPE TRACK INSPECTION CAR 失效
公开(公告)号：JP2001130408A
公开(公告)日：2001-05-15
申请号：JP31214899
申请日：1999-11-02
申请人： TOKYO METROPOLITAN GOV , HITACHI ELECTR ENG
发明人： MACHIDA SHUNJI , WAKABAYASHI TORU , KIDO MASAAKI , YAMADA TETSUO , IIZUKA NOBUYUKI , FUKUHARA SHINICHI , YOSHIZAWA TAKAO
IPC分类号： E01B35/00 , B61D15/12 , B61K9/08 , G01B21/00
摘要： PROBLEM TO BE SOLVED: To provide a small traction type track inspection car capable of executing the high-speed measurement in comparison with a simple light-weight track inspection car, easily confirming the abnormality in measurement, and simplifying the handing in comparison with a track inspection car loading an inspection device and traveling at a high speed. SOLUTION: A display lamp for displaying the abnormality in measurement is mounted at the level capable of being observed from a towing vehicle, and lit when a state of the abnormality in measurement is judged on the basis of a measured value at a measurement part. This car dispenses with a monitor independently mounted on the towing-vehicle, and a watchman riding on the side to be towed, and realizes a small traction type vehicle with low center of gravity.

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