CN108592802B - There is tiny fragments of stone, coal, etc. railway rail monitoring system reflector panel installation component - Google Patents
There is tiny fragments of stone, coal, etc. railway rail monitoring system reflector panel installation component Download PDFInfo
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- CN108592802B CN108592802B CN201810449179.7A CN201810449179A CN108592802B CN 108592802 B CN108592802 B CN 108592802B CN 201810449179 A CN201810449179 A CN 201810449179A CN 108592802 B CN108592802 B CN 108592802B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
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- General Physics & Mathematics (AREA)
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Abstract
The invention provides a reflector mounting assembly of a ballast railway steel rail monitoring system, which comprises an adjusting bracket for mounting a reflector and a mounting bracket for fixing the adjusting bracket on a steel rail, wherein the included angle between the reflector and the steel rail is changed by adjusting the mounting position and the mounting angle of the adjusting bracket on the steel rail, and the first adjusting part can correspondingly rotate by adjusting the height of the second adjusting part, so that the included angle between the reflector and the horizontal plane is changed. Through the adjustment, the vertical distance change condition of the laser and the reflector in the crawling process of the steel rail is monitored, and the crawling amount of the steel rail can be calculated. This installation component simple structure, design benefit, convenient to use, when the rail takes place to creep, the position and the angle of reflector panel and horizontal plane can change to make the vertical distance between laser instrument and the reflector panel change, through monitoring above-mentioned parameter variation condition, can monitor the rail condition of crawling simply, accurately.
Description
Technical Field
The invention belongs to the technical field of railway steel rail monitoring equipment, and particularly relates to a reflector mounting assembly of a ballast railway steel rail monitoring system.
Background
With the rapid development of high-speed railway technology, the mileage for laying seamless steel rails is rapidly lengthened, and the infrastructure for monitoring the operation of high-speed railways, namely the working state of the steel rails, has attracted attention of railway business departments. With the increase of railway transportation tasks and the continuous impact of wheels on the steel rail during the running of a train, the steel rail not only generates vertical force and transverse force, but also bends in a wave shape under the action of dynamic load and generates longitudinal horizontal thrust due to the rolling and longitudinal sliding of the wheels. The longitudinal horizontal thrust can cause the longitudinal displacement of the steel rail and sometimes drive the sleepers to move together, so that the rail creeping phenomenon is caused. The rail climbing can cause various problems of railway lines and even bring about potential safety hazards.
The traditional steel rail crawling monitoring method comprises a rope-suspension measuring method and a theodolite measuring method, and has the defects of high labor cost, complex operation, poor accuracy and the like. The laser shows outstanding advantages in steel rail measurement due to the inherent characteristics of monochromaticity, high brightness, coherence, good directivity and the like, and is widely applied.
When the rail climbing amount is monitored by using laser, a reflecting plate for reflecting laser beams needs to be installed on the rail. At present, a reflector is clamped at the bottom of a railway steel rail by adopting triangular iron, the included angle between the reflector and the horizontal plane is constant and is 90 degrees, the reflector cannot be adjusted, a laser light spot is reflected to the ballast stone on the bottom surface after reaching the reflecting surface and is subjected to secondary reflection, and therefore interference is caused on a ranging pergola book, and the accuracy of a measuring result is influenced.
Disclosure of Invention
In order to solve the technical problem, the invention provides a reflector mounting assembly of a ballast railway steel rail monitoring system.
The specific technical scheme of the invention is as follows:
the invention provides a reflector mounting assembly of a ballast railway steel rail monitoring system, which comprises an adjusting bracket for mounting a reflector, wherein the adjusting bracket comprises a base, a first adjusting piece and a second adjusting piece are arranged on the base, the height of the second adjusting piece is higher than that of the first adjusting piece, the first adjusting piece can rotate around a shaft, and the height of the second adjusting piece can be adjusted; the first adjusting piece is fixed at one side end of the reflector, the second adjusting piece is fixed at one end, close to the first adjusting piece, of the reflector, and a rotating shaft of the first adjusting piece is perpendicular to the height direction of the second adjusting piece.
Furthermore, the second adjusting part comprises a fixing frame and an adjusting sheet, the bottom of the fixing frame is fixed on the base, and the top of the adjusting sheet is fixed on the reflector; the top of the fixing frame is provided with a first fixing piece for connecting the fixing frame and the adjusting sheet, and the adjusting sheet can slide along the fixing frame.
Further, the mount includes two fixed clamping pieces that set up relatively, the adjustment sheet is established two between the fixed clamping piece, two fixed clamping piece top is equipped with first connecting hole, the adjustment sheet surface is equipped with logical groove along length direction, first mounting is inserted and is established logical inslot, first mounting both ends are passed respectively first connecting hole compresses tightly two on the fixed clamping piece.
Further, the bottom of the adjusting sheet is arc-shaped.
Furthermore, the fixing frame also comprises a base, the base is fixed on the base, and the bottoms of the two fixing clamping pieces are fixed on the base.
Further, the first adjusting part comprises a first fixing piece and a second fixing piece which are fixedly connected with the light reflecting plate and the base respectively, a rotating shaft is arranged on the edge of one side, close to the base, of the first fixing piece in the length direction, a shaft sleeve is arranged on the edge of one side, close to the light reflecting plate, of the second fixing piece in the length direction, the rotating shaft is inserted in the shaft sleeve, and the two ends of the rotating shaft extend out of the shaft sleeve.
Furthermore, the first fixing piece and the second fixing piece are provided with a plurality of second fixing holes, the reflector and the base are provided with through holes, each second fixing piece is provided with a second fixing piece in the second fixing hole, two ends of each second fixing piece extend out of the second fixing holes and the through holes respectively, the first fixing piece is fixed on the reflector through the second fixing pieces, and the second fixing piece is fixed on the base through the second fixing pieces.
Furthermore, the mounting assembly also comprises a mounting bracket which is fixed on the railway steel rail and used for mounting the adjusting bracket, wherein a clamping groove is formed in the side surface of the mounting bracket, and the clamping groove is clamped on the railway steel rail; the top of the mounting support is further provided with a third fixing hole, the base is provided with a mounting hole, a third fixing piece is inserted into the third fixing hole, two ends of the third fixing piece respectively extend out of the third fixing hole and the mounting hole, and the base is fixed on the mounting support through the third fixing piece.
Further, the installing support is including the major possession and the smallclothes of mutually supporting, the major possession includes first joint portion, the smallclothes includes second joint portion, first joint portion bottom with second joint portion encloses synthetically the joint groove.
Further, first joint portion bottom edge is equipped with first connecting portion, second joint portion bottom edge is equipped with the second connecting portion, first connecting portion with the symmetry is equipped with a plurality of fourth fixed orificess on the second connecting portion, it is equipped with the fourth connecting piece to insert in the fourth fixed orifices, the fourth connecting piece both ends are stretched out the fourth fixed orifices and are compressed tightly respectively first joint portion with on the second joint portion.
The invention has the following beneficial effects: the invention provides a reflector mounting assembly of a ballast railway steel rail monitoring system, which comprises an adjusting bracket for mounting a reflector and a mounting bracket for fixing the adjusting bracket on a railway steel rail, wherein the included angle alpha between the reflector and the steel rail is changed by adjusting the mounting position and the mounting angle of the adjusting bracket on the steel rail, and the first adjusting part can correspondingly rotate by adjusting the height of the second adjusting part, so that the included angle beta between the reflector and the horizontal plane is changed. Through the adjustment, the light beam emitted by the laser is perpendicular to the inclined mirror surface of the reflector, and the perpendicular distance between the laser and the inclined mirror surface is L1; when the steel rail creeps, the position of laser photoelectricity on the reflector changes, the vertical distance between the laser and the reflector surface becomes L2, and the creep displacement quantity delta L of the steel rail can be calculated according to the following formula:
△l＝△L*sinα*sinβ＝(L1-L2)*sinα*sinβ
this installation component simple structure, design benefit, convenient to use, when the rail takes place to creep, the position and the angle of reflector panel and horizontal plane can change to make the vertical distance between laser instrument and the reflector panel change, through monitoring above-mentioned parameter change condition, can simply, accurately carry out effective monitoring to the rail condition of crawling.
Drawings
Fig. 1 is a schematic structural diagram of a reflector mounting assembly of a ballast railway rail monitoring system according to embodiment 1;
fig. 2 is a right side view of an adjusting bracket in a reflector mounting assembly of the ballast railway rail monitoring system according to embodiment 2;
fig. 3 is a schematic structural diagram of a second adjusting member in the reflector mounting assembly of the ballast railway rail monitoring system according to embodiment 2;
fig. 4 is a right side view of an adjusting bracket in the reflector mounting assembly of the ballast railway rail monitoring system according to embodiment 3;
fig. 5 is a rear view of an adjusting bracket in a reflector mounting assembly of the ballast railway rail monitoring system according to embodiment 3;
fig. 6 is a schematic structural diagram of a large part in a reflector mounting assembly of the ballast railway steel rail monitoring system according to embodiment 4;
fig. 7 is a schematic structural diagram of a small part in a reflector mounting assembly of the ballast railway rail monitoring system according to embodiment 4;
fig. 8 is a sectional view of an installation manner of the ballast railway rail monitoring system reflector mounting assembly according to embodiment 4;
FIG. 9 is an enlarged view of A in FIG. 8;
fig. 10 is a schematic use state diagram of the reflector mounting assembly of the ballast railway rail monitoring system according to embodiment 4.
Wherein: 1. a reflector; 2. a base; 3. a first adjustment member; 31. a first fixing sheet; 32. a second fixing sheet; 33. a rotating shaft; 34. a shaft sleeve; 35. a second fixing hole; 36. a second fixing member; 4. a second adjustment member; 41. a regulating sheet; 42. a first fixing member; 43. fixing the clamping piece; 44. a first connection hole; 45. a through groove; 46. a base; 5. a clamping groove; 51. a third fixing hole; 52. a third fixing member; 53. a first clamping part; 54. a second clamping part; 55. a first connection portion; 56. a second connecting portion 57 and a fourth fixing hole; 58. and a fourth connecting piece.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
Example 1
As shown in fig. 1, an embodiment 1 of the invention provides a reflector mounting assembly for a ballast railway steel rail monitoring system, which includes an adjusting bracket for mounting a reflector 1, where the adjusting bracket includes a base 2, the base 2 is provided with a first adjusting part 3 and a second adjusting part 4, the height of the second adjusting part 4 is higher than that of the first adjusting part 3, the first adjusting part 3 can rotate around a shaft, and the height of the second adjusting part 4 is adjustable; the first adjusting part 3 is fixed at one side end part of the reflector 1, the second adjusting part 4 is fixed at one end, close to the first adjusting part 3, of the reflector 1, and the rotating shaft 33 of the first adjusting part 3 is perpendicular to the height direction of the second adjusting part 4.
When the reflector is used, the adjusting bracket is arranged on a railway steel rail, and the included angle alpha between the reflector 1 and the steel rail is changed by adjusting the installation position and the installation angle of the adjusting bracket on the steel rail; meanwhile, as the first adjusting part 3 is arranged at the end part of the reflector 1, and the height of the second adjusting part 4 is higher than that of the first adjusting part 3 for adjusting the height of the second adjusting part 4, when the height of the second adjusting part 4 is adjusted, the first adjusting part 3 can also correspondingly rotate, so that the included angle beta between the reflector 1 and the horizontal plane is changed. Through the adjustment, the light beam emitted by the laser is perpendicular to the inclined mirror surface of the reflector, and the perpendicular distance between the laser and the inclined mirror surface is L1; when the steel rail creeps, the position of laser photoelectricity on the reflector changes, the vertical distance between the laser and the reflector surface becomes L2, and the creep displacement quantity delta L of the steel rail can be calculated according to the following formula:
△l＝△L*sinα*sinβ＝(L1-L2)*sinα*sinβ
this installation component simple structure, design benefit, convenient to use, when the rail takes place to creep, the position and the angle of reflector panel and horizontal plane can change to make the vertical distance between laser instrument and the reflector panel change, through monitoring above-mentioned parameter change condition, can simply, accurately carry out effective monitoring to the rail condition of crawling.
Example 2
As shown in fig. 2 to 3, in this embodiment 2, on the basis of embodiment 1, a reflector mounting assembly of a ballast railway rail monitoring system is provided, and this embodiment 2 further defines that the second adjusting member 4 includes a fixing frame and an adjusting tab 41, a bottom of the fixing frame is fixed on the base 2, and a top of the adjusting tab 41 is fixed on the reflector 1; the top of the fixing frame is provided with a first fixing part 42 for connecting the fixing frame and the adjusting sheet 41, and the adjusting sheet 41 can slide along the fixing frame.
The mount includes two relative fixed clamping pieces 43 that set up, the adjustment sheet 41 is established two between the fixed clamping piece 43, two fixed clamping piece 43 top is equipped with first connecting hole 44, adjustment sheet 41 surface is equipped with logical groove 45 along length direction, first mounting 42 is inserted and is established lead to the inslot 45, first mounting 42 both ends are passed respectively first connecting hole 44 compresses tightly two on the fixed clamping piece 43.
The adjusting sheet 41 is fixed between the two fixing clips 43 through a first fixing member 42 (which may be a fastening bolt and a matched nut), and the first fixing member 42 can slide up and down along the through groove 45, so that the adjusting sheet can slide up and down along the fixing frame, and the height of the second adjusting member 4 can be adjusted; meanwhile, the first fixing member 42 is pressed on both sides of the fixing clip 43, and can also fix the adjusting piece after adjusting the proper height. The first fixing member 42 is fixed by the fixing clip 43, so that the angle deviation caused by friction force can be avoided.
The bottom of the adjusting sheet 41 is arc-shaped, so that the adjusting sheet 41 can flexibly rotate and prevent jamming when sliding to the bottom of the fixing frame.
The fixing frame further comprises a base 46, the base 46 is fixed on the base 2, and the bottoms of the two fixing clamping pieces 43 are fixed on the base 46.
The base 46 can further increase the height of the mount, thereby increasing the range of height adjustment of the second adjustment member 4.
Example 3
As shown in fig. 4 to 5, in this embodiment 3, on the basis of embodiment 2, a reflector mounting assembly for a rail monitoring system of a ballast railway is provided, where this embodiment 3 further defines that the first adjusting member 3 includes a first fixing piece 31 and a second fixing piece 32, which are fixedly connected to the reflector 1 and the base 2, respectively, a rotating shaft 33 is provided on one side edge of the first fixing piece 31 close to the base 2 along the length direction, a shaft sleeve 34 is provided on one side edge of the second fixing piece 32 close to the reflector 1 along the length direction, and the rotating shaft 33 is inserted into the shaft sleeve 34 and both ends of the rotating shaft extend out of the shaft sleeve 34.
First stationary blade 31 with all be equipped with a plurality of second fixed orificess 35 on the second stationary blade 32, reflector panel 1 with all be equipped with the through-hole on the base 2, every all be equipped with second mounting 36 in the second fixed orificess 35 (can be fastening bolt and supporting nut), second mounting 36 both ends are stretched out respectively the second fixed orificess 35 with the through-hole, first stationary blade 31 passes through second mounting 36 is fixed on reflector panel 1, second stationary blade 32 passes through second mounting 36 is fixed on the base 2.
The shaft sleeve 34 can rotate around the rotating shaft 33, so that the first fixing plate 31 and the second fixing plate 32 can rotate relatively; the first fixing sheet 31 and the second fixing sheet 32 are respectively fixed on the reflector 1 and the base 2, so that the angle between the reflector 1 and the base 2 can be adjusted within a small range, and the reflector 1 can be fixedly supported.
Example 4
As shown in fig. 6 to 10, embodiment 4 provides a reflector mounting assembly for a ballast railway steel rail monitoring system based on embodiment 1, and embodiment 4 further defines that the mounting assembly further includes a mounting bracket fixed on a railway steel rail and used for mounting the adjusting bracket, a side surface of the mounting bracket is provided with a clamping groove 5, and the clamping groove 5 is clamped on the railway steel rail; the top of the mounting bracket is further provided with a third fixing hole 51, the base 2 is provided with a mounting hole 21, a third fixing piece 52 is inserted into the third fixing hole 51, two ends of the third fixing piece 52 extend out of the third fixing hole 51 and the mounting hole 21 respectively, and the base 2 is fixed on the mounting bracket through the third fixing piece 52.
The installing support includes the major possession (as shown in fig. 6) and the smallclothes (as shown in fig. 7) of mutually supporting, the major possession includes first joint portion 53, the smallclothes includes second joint portion 54, first joint portion 53 bottom with second joint portion 54 encloses to be synthetic joint groove 5.
First joint portion 53 bottom edge is equipped with first connecting portion 55, second joint portion 54 bottom edge is equipped with second connecting portion 56, first connecting portion 55 with the symmetry is equipped with a plurality of fourth fixed orificess 57 on the second connecting portion 56, fourth fixed orifices 57 interpolation is equipped with fourth connecting piece 58, stretch out at fourth connecting piece 58 both ends fourth fixed orificess 57 and compress tightly respectively first joint portion 53 with on the second joint portion 54.
During the use, with major possession and smallclothes joint in rail both sides respectively, make rail embedding first joint portion 54 and second joint portion 53 enclose synthetic joint groove 5 to connect first connecting portion 55 and second connecting portion 56 through fourth mounting 58 (can be for fastening bolt and supporting nut), install the installing support on the rail. The top of the large piece and the top of the small piece can be provided with third fixing holes 51, the third fixing holes 51 at proper positions can be selected as required during use, and the base 2 is fixed on the mounting bracket through third fixing pieces 52 (which can be fastening bolts and matched nuts). The third fixing element 52 can adjust the angle between the reflector 1 and the rail, and also can play a role in fixing after the angle is adjusted, so as to improve the accuracy of measurement.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The mounting assembly for the light reflecting plate of the ballast railway steel rail monitoring system is characterized by comprising an adjusting support for mounting the light reflecting plate (1), wherein the adjusting support comprises a base (2), a first adjusting piece (3) and a second adjusting piece (4) are arranged on the base (2), the height of the second adjusting piece (4) is higher than that of the first adjusting piece (3), the first adjusting piece (3) can rotate around a shaft, and the height of the second adjusting piece (4) can be adjusted; the first adjusting piece (3) is fixed at one side end of the reflector (1), and the second adjusting piece (4) is fixed at one end, close to the first adjusting piece (3), of the reflector (1);
the second adjusting piece (4) comprises a fixing frame and an adjusting sheet (41), the bottom of the fixing frame is fixed on the base (2), and the top of the adjusting sheet (41) is fixed on the reflector (1); the top of the fixed frame is provided with a first fixed part (42) for connecting the fixed frame and the adjusting sheet (41), and the adjusting sheet (41) can slide along the fixed frame;
the fixing frame comprises two fixing clamping pieces (43) which are oppositely arranged, the adjusting piece (41) is arranged between the two fixing clamping pieces (43), the tops of the two fixing clamping pieces (43) are provided with first connecting holes (44), the surface of the adjusting piece (41) is provided with through grooves (45) along the length direction, the first fixing piece (42) is inserted into the through grooves (45), and two ends of the first fixing piece (42) respectively penetrate through the first connecting holes (44) and are tightly pressed on the two fixing clamping pieces (43);
the first adjusting piece (3) comprises a first fixing piece (31) and a second fixing piece (32) which are fixedly connected with the reflector (1) and the base (2) respectively, a rotating shaft (33) is arranged on the edge of one side, close to the base (2), of the first fixing piece (31) along the length direction, and the rotating shaft (33) is perpendicular to the height direction of the second adjusting piece (4); a shaft sleeve (34) is arranged on the edge of one side, close to the light reflecting plate (1), of the second fixing piece (32) along the length direction, the rotating shaft (33) is inserted in the shaft sleeve (34), and two ends of the rotating shaft extend out of the shaft sleeve (34).
2. The ballast railway rail monitoring system reflector mounting assembly of claim 1, wherein the bottom of the adjustment tab (41) is arcuate.
3. The ballast railway rail monitoring system reflector mounting assembly according to claim 1, wherein the fixing frame further comprises a base (46), the base (46) is fixed on the base (2), and the bottoms of the two fixing clips (43) are fixed on the base (46).
4. The ballast railway steel rail monitoring system reflector mounting assembly according to claim 1, wherein a plurality of second fixing holes (35) are formed in each of the first fixing plate (31) and the second fixing plate (32), through holes are formed in each of the reflector plate (1) and the base (2), a second fixing member (36) is disposed in each of the second fixing holes (35), two ends of each of the second fixing members (36) respectively extend out of the second fixing holes (35) and the through holes, the first fixing plate (31) is fixed to the reflector plate (1) through the second fixing member (36), and the second fixing plate (32) is fixed to the base (2) through the second fixing member (36).
5. The ballast railway steel rail monitoring system reflector mounting assembly according to any one of claims 1 to 4, further comprising a mounting bracket fixed on a railway steel rail and used for mounting the adjusting bracket, wherein a clamping groove (5) is formed in a side surface of the mounting bracket, and the clamping groove (5) is clamped on the railway steel rail; the mounting support is characterized in that a third fixing hole (51) is further formed in the top of the mounting support, a mounting hole (21) is formed in the base (2), a third fixing piece (52) is inserted into the third fixing hole (51), two ends of the third fixing piece (52) extend out of the third fixing hole (51) and the mounting hole (21) respectively, and the base (2) is fixed to the mounting support through the third fixing piece (52).
6. The ballast railway track monitoring system reflector mounting assembly according to claim 5, wherein the mounting bracket comprises a large piece and a small piece which are matched with each other, the large piece comprises a first clamping portion (53), the small piece comprises a second clamping portion (54), and the bottom of the first clamping portion (53) and the second clamping portion (54) enclose the clamping groove (5).
7. The reflector mounting assembly for the ballast railway steel rail monitoring system according to claim 6, wherein a first connecting portion (55) is arranged at a bottom edge of the first clamping portion (53), a second connecting portion (56) is arranged at a bottom edge of the second clamping portion (54), a plurality of fourth fixing holes (57) are symmetrically formed in the first connecting portion (55) and the second connecting portion (56), a fourth connecting member (58) is inserted into the fourth fixing holes (57), and two ends of the fourth connecting member (58) extend out of the fourth fixing holes (57) and are respectively pressed on the first clamping portion (53) and the second clamping portion (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449179.7A CN108592802B (en) | 2018-05-11 | 2018-05-11 | There is tiny fragments of stone, coal, etc. railway rail monitoring system reflector panel installation component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449179.7A CN108592802B (en) | 2018-05-11 | 2018-05-11 | There is tiny fragments of stone, coal, etc. railway rail monitoring system reflector panel installation component |
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| Publication Number | Publication Date |
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| CN108592802A CN108592802A (en) | 2018-09-28 |
| CN108592802B true CN108592802B (en) | 2021-03-30 |
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| CN201810449179.7A Active CN108592802B (en) | 2018-05-11 | 2018-05-11 | There is tiny fragments of stone, coal, etc. railway rail monitoring system reflector panel installation component |
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| US6181410B1 (en) * | 1997-05-29 | 2001-01-30 | Seiko Instruments Inc. | Oscillating motor, measurement device for measuring distance, speed or direction using a laser light, and vehicle having the measurement device |
| CN201214431Y (en) * | 2008-04-28 | 2009-04-01 | 广州市奥特创通测控技术有限公司 | Distribution structure of dynamic detection point for train wheelset profile and bogie structure parameter |
| CN201439584U (en) * | 2009-06-17 | 2010-04-21 | 中铁八局集团有限公司 | Reflective mirror support saddle for measuring orbit |
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