CN111366384B - Detection and adjustment equipment for bogie of high-speed rail and motor car - Google Patents
Detection and adjustment equipment for bogie of high-speed rail and motor car Download PDFInfo
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- CN111366384B CN111366384B CN202010232939.6A CN202010232939A CN111366384B CN 111366384 B CN111366384 B CN 111366384B CN 202010232939 A CN202010232939 A CN 202010232939A CN 111366384 B CN111366384 B CN 111366384B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a detection and adjustment device for a bogie of a high-speed rail or a motor car, which comprises a first layer lifting mechanism, a second layer lifting mechanism, a lifting platform mechanism, a support adjustment mechanism, a stand column mechanism and a beam assembly body, wherein the first layer lifting mechanism and the second lifting mechanism are arranged in a foundation from bottom to top, the lifting platform mechanism is arranged on four first support columns of the first lifting mechanism, the lifting platform mechanism is flush with the ground of a workshop, the four support columns of the second lifting mechanism are respectively provided with the support adjustment mechanism, two sides of the lifting platform mechanism are respectively provided with the stand column mechanism, each stand column mechanism is provided with the beam assembly body, a detection device and an adjustment device are arranged on a beam body of the beam assembly body, a control box is arranged on the foundation, and a controller is arranged in the control box. According to the invention, the wheel spacing of the steering machine of the high-speed rail and the motor car is detected with high precision through the automatic equipment, so that the labor is saved, and the efficiency is improved.
Description
Technical Field
The invention belongs to the field of motor car bogie detection, and particularly relates to detection and adjustment equipment for a high-speed rail and a motor car bogie.
Background
The assembly clearance between a wheel pair and a frame and the diagonal difference of four wheels in the assembly process of the high-speed rail and motor train bogie are two important process parameters. In order to ensure that these two parameters are within the specified tolerance, the truck after the completion is measured, and if the measurement result is not within the tolerance, the assembly clearance between the frame and the wheel set needs to be adjusted. At present, the field operation mode is manual measurement and manual adjustment of a hydraulic jack. Before manual measurement, a line is marked on the wheel pair to be used as a measuring reference, and then a special measuring tool is used for measuring key parameters. During manual measurement, human factors influence the measurement result, and the measurement reference has errors, so that the measurement result has large errors. The production rhythm is limited while the manual measurement and adjustment occupy more manpower.
Disclosure of Invention
In view of this, the present invention is directed to a detection and adjustment apparatus for a bogie of a high-speed rail or a motor car, which improves detection accuracy, saves labor, and improves efficiency by an automatic device.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a detection and adjustment device for a high-speed rail and motor car bogie comprises a first-layer lifting mechanism, a second-layer lifting mechanism, a lifting platform mechanism, a support adjusting mechanism, a stand column mechanism and a beam assembly body,
one deck elevating system, supreme setting is in the ground down followed to two layers of elevating system, elevating platform mechanism sets up on four pillars of elevating system No. one, and elevating platform mechanism flushes with workshop ground, all be equipped with one on four pillars of two layers of elevating system and support adjustment mechanism, elevating platform mechanism both sides are equipped with a stand mechanism respectively, all be equipped with a crossbeam assembly body in every stand mechanism, be equipped with detection device and adjusting device on the crossbeam body of crossbeam assembly body, be equipped with the control box on the ground, be equipped with the controller in the control box.
Furthermore, one deck elevating system includes the crane, a lead screw lift is set up in the four corners of crane, the well lower part of crane is equipped with elevator motor No. one, the first lead screw that elevator motor drive X axle direction set up rotates, and two lead screw lifts of Y axle homonymy pass through the linkage of second lead screw, two second lead screw rotations of first lead screw through the steering gear simultaneous drive, elevator motor signal connection to controller.
Further, two layers of elevating system include the crane No. two, four No. two pillar bottoms of No. two cranes set up No. two lead screw lift, and No. two lead screw lift sets up on a crane, the well upper portion of a crane is equipped with elevator motor No. two, the third lead screw that No. two elevator motor drive X axle directions set up rotates, and two No. two lead screw lift of Y axle homonymy pass through the fourth lead screw linkage, the third lead screw passes through two fourth lead screw rotations of steering gear simultaneous drive, and No. two elevator motor signal connection are to the controller.
Further, elevating platform mechanism places on four pillars No. one of elevating system, elevating platform mechanism includes the platform main part, wheel set positioning mechanism, the positioning motor, the location lead screw, the inside four corners of platform main part is equipped with a wheel set positioning mechanism respectively, platform main part both sides middle part is equipped with a positioning motor respectively, the positioning motor is connected to two wheel set positioning mechanism of homonymy through two location lead screws, platform main part top both sides are equipped with a guide rail respectively, the both ends of guide rail are equipped with a logical groove, four wheel set positioning mechanism's V type piece sets up at four logical inslots, positioning motor signal connection is to the controller.
Further, wheel set positioning mechanism includes translation frame, mounting bracket, slider, translation guide rail, V type piece and positioning oil cylinder, and translation frame fixed mounting is equipped with the translation guide rail to platform main part inner wall in the mounting bracket to the platform main part, and the location lead screw passes translation frame, and mounting bracket bottom one side is connected to translation guide rail through the slider, and mounting bracket bottom opposite side is connected to the location lead screw through the nut, and the mounting bracket top is connected to V type piece through positioning oil cylinder and guide post.
Further, four No. two pillar tops of two layers of erectors all are equipped with one and support adjustment mechanism, support adjustment mechanism including supporting the base, the deflector, adjusting nut, the supporting shoe, the mounting panel top is connected to No. two mounting panels through the deflector, No. one mounting panel middle part is through adjusting lead screw connection to No. two mounting panels, No. two mounting panel one sides are equipped with the regulating motor, the supporting shoe cup joints at adjusting nut and deflector outsidely, and follows adjusting nut and remove, and regulating motor signal connection is to the controller.
Further, stand mechanism includes the stand body, and the inside ball that is equipped with of stand body is equipped with the stand motor at stand body top, and ball is connected to stand motor output, and the crossbeam assembly body passes through slide threaded connection to ball, stand motor signal connection to controller.
Further, the beam assembly body comprises a support frame, a beam body, a detection device and an adjusting device, the beam body is connected to the sliding plate through the support frame, the detection device and the adjusting device which are identical in structure are arranged on two sides of the beam body, a first linear module is arranged on the upper portion of one side of the beam, a second linear module is arranged on the lower portion of one side of the beam, a third linear module is arranged in the Z-axis direction, and the adjusting device is connected to the first linear module through the third linear module; no. four sharp modules are installed in Y axle direction, and detection device is connected to No. two sharp modules through No. four sharp modules, No. one sharp module, No. two sharp modules, No. three sharp module and No. four sharp module signal connection to controller.
Further, the adjusting device comprises a hydraulic oil cylinder connected with the controller through signals.
Further, detection device includes inboard mounting panel, outside mounting panel, and the inboard mounting panel is equipped with the laser rangefinder sensor of a perpendicular detection, and the outside mounting panel is equipped with the laser rangefinder sensor that both sides level detected, and the equal signal connection of three laser rangefinder sensor is to the controller.
Compared with the prior art, the detection and adjustment device for the high-speed rail and bullet train bogie has the following advantages:
(1) the detection and adjustment equipment for the high-speed rail and motor car bogie utilizes the automation equipment to calculate and adjust the assembly clearance of the high-speed rail frame and the diagonal difference values of the four wheels, has high automation degree and saves manpower.
(2) According to the detection and adjustment equipment for the high-speed rail and the motor car bogie, the adjustment value is calculated for the high-speed rail which does not meet the requirement through the algorithm arranged in the controller, and the measurement precision is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a detection and adjustment device for a high-speed rail and motor car bogie according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a first-level lifting mechanism and a second-level lifting mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of a lift platform mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of the interior of the elevating platform mechanism according to the embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of A in FIG. 4 according to an embodiment of the present invention;
FIG. 6 is a schematic view of a support adjustment mechanism according to an embodiment of the present invention;
FIG. 7 is an internal view of a support adjustment mechanism according to an embodiment of the present invention;
FIG. 8 is a schematic view of a column body according to an embodiment of the present invention;
FIG. 9 is a schematic view of a beam assembly according to an embodiment of the present invention;
fig. 10 is a partially enlarged view of a in fig. 9 according to an embodiment of the present invention.
Description of reference numerals:
1. a layer of lifting mechanism; 11. a first lifting frame; 12. a first lead screw lifter; 13. a first lifting motor; 14. a first lead screw; 15. a second lead screw; 16. a first strut; 2. a two-layer lifting mechanism; 21. a second lifting frame; 22. a second screw elevator; 23. a second lifting motor; 24. a third lead screw; 25. a fourth lead screw; 26; a second strut; 3. a lifting platform mechanism; 31. a platform body; 32. a wheel set positioning mechanism; 321. a translation frame; 322. a mounting frame; 323. a slider; 324. a translation guide rail; 325. a V-shaped block; 326. positioning the oil cylinder; 33. positioning a motor; 34. positioning a lead screw; 35. a guide rail; 36. a through groove; 4. a support adjustment mechanism; 41. a support base; 42. a guide plate; 43. adjusting the nut; 44. a support block; 45. a first mounting plate; 46. a second mounting plate; 47. adjusting the motor; 5. a column mechanism; 51. a column body; 52. a ball screw; 53. a column motor; 54. a slide plate; 6. a beam assembly; 61. a support frame; 62. a beam body; 63. a detection device; 631. an inner side mounting plate; 632. an outer mounting plate; 633. a laser ranging sensor; 64. an adjustment device; 641. a hydraulic cylinder; 65. a first straight line module; 66. a second linear module; 67. a third straight line module; 68. and a fourth straight line module.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A detection and adjustment device for a high-speed rail and motor car bogie is characterized in that: comprises a first-layer lifting mechanism 1, a second-layer lifting mechanism 2, a lifting platform mechanism 3, a supporting and adjusting mechanism 4, a stand column mechanism 5 and a beam assembly body 6,
one deck elevating system 1, supreme setting is in the ground down followed to two layers of elevating system 2, elevating platform mechanism 3 sets up on four pillars 16 of elevating system No. one, and elevating platform mechanism 3 flushes with workshop ground, all be equipped with one on four pillars of two layers of elevating system 2 and support adjustment mechanism 4, 3 both sides of elevating platform mechanism are equipped with a stand mechanism 5 respectively, all be equipped with a crossbeam assembly body 6 on every stand mechanism 5, be equipped with detection device 63 and adjusting device 64 on the crossbeam body 62 of crossbeam assembly body 6, be equipped with the control box on the ground, be equipped with the controller in the control box, the controller is PLC.
One deck elevating system 1 includes crane 11, No. one lead screw lift 12 of four corners setting of crane 11, crane 11's well lower part is equipped with elevator motor 13, first lead screw 14 that elevator motor 13 drive X axle direction set up rotates, and two lead screw lift 12 of Y axle homonymy link through second lead screw 15, first lead screw 14 passes through two second lead screw 15 rotations of steering gear simultaneous drive, and elevator motor 13 signal connection to controller, an elevator motor 13 work can drive four lead screw lift 12 and move together, and is preferred, and crane 11's four corners is equipped with a pulley respectively, when setting up when going on the oscilaltion in the middle of the pit of ground, can reduce the frictional force with the hole wall.
Two layers of elevating system 2 includes crane 21 No. two, No. two 26 bottoms of four pillars of crane 21 set up No. two lead screw lift 22, and No. two lead screw lift 22 set up on crane 11, the well upper portion of crane 11 is equipped with elevator motor 23 No. two, No. two elevator motor 23 drive third lead screw 24 that X axle direction set up rotates, and two No. two lead screw lift 22 of Y axle homonymy are through the linkage of fourth lead screw 25, third lead screw 24 drives two fourth lead screws 25 through the steering gear simultaneously and rotates, and No. two elevator motor 23 signal connection to controller, and the working method is the same with elevating system 1.
The lifting platform mechanism 3 is placed on four first pillars 16 of the first lifting mechanism, the lifting platform mechanism 3 comprises a platform main body 31, wheel pair positioning mechanisms 32, positioning motors 33 and positioning screw rods 34, four corners inside the platform main body 31 are respectively provided with one wheel pair positioning mechanism 32, the middle parts of two sides of the platform main body 31 are respectively provided with one positioning motor 33, the positioning motors 33 are connected to the two wheel pair positioning mechanisms 32 on the same side through the two positioning screw rods 34, two sides of the top of the platform main body 31 are respectively provided with a guide rail 35, when a bogie of a high-speed rail and a motor car is transported to the position, wheels are in the guide rails 35, two ends of the guide rails 35 are provided with a through groove 36, at the moment, the wheels are positioned at the through groove 36, a V-shaped block 325 extends out of the through groove to position and fix the wheels of the bogie, V-shaped blocks 325 of the four wheel pair positioning mechanisms 32 are arranged in the four through grooves 36, the positioning motor 33 is signally connected to the controller.
The wheel set positioning mechanism 32 comprises a translation frame 321, an installation frame 322, a sliding block 323, a translation guide rail 324, a V-shaped block 325 and a positioning oil cylinder 326, wherein the translation frame 321 is fixedly installed on the inner wall of the platform main body 31, the translation guide rail 324 is arranged in the installation frame 322, a positioning lead screw 34 penetrates through the translation frame 321, one side of the bottom of the installation frame 322 is connected to the translation guide rail 324 through the sliding block 323, the other side of the bottom of the installation frame 322 is connected to the positioning lead screw 34 through a nut, the top of the installation frame 322 is connected to the V-shaped block 325 through the positioning oil cylinder 326 and a guide column, and vehicle models with different axle distances between 2200mm and 2800mm can be met.
No. two 26 tops of four pillars of crane 21 No. two all are equipped with one and support adjustment mechanism 4, support adjustment mechanism 4 including supporting base 41, deflector 42, adjusting nut 43, supporting shoe 44, No. two mounting panels 46 are connected to through deflector 42 in the top of mounting panel 45, No. two mounting panels 46 are connected to through adjusting the lead screw in the middle part of mounting panel 45, No. two mounting panels 46 one side is equipped with adjusting motor 47, supporting shoe 44 cup joints in adjusting nut 43 and deflector 42 outside, and remove along with adjusting nut 43, adjusting motor 47 signal connection is to the controller, can satisfy the motorcycle type of different wheel bases between 2200mm-2800mm, the motorcycle type wheel base of processing as required is adjusted, then carry out subsequent location and detect the operation.
The stand column mechanism 5 comprises a stand column body 51, a ball screw 52 is arranged in the stand column body 51, a stand column motor 53 is arranged at the top of the stand column body 51, the ball screw 52 is connected to the output end of the stand column motor 53, the beam assembly body 6 is connected to the ball screw 52 through a sliding plate nut, the stand column motor 53 is in signal connection with a controller, the beam assembly body 6 can move up and down relative to the stand column body 5, and preferably, a dust cover is arranged on the outer side of the stand column body 51 to protect the ball screw 52.
The beam assembly body 6 comprises a support frame 61, a beam body 62, a detection device 63 and an adjusting device 64, the beam body 62 is connected to the sliding plate 54 through the support frame 61, the detection device 63 and the adjusting device 64 which are identical in structure are arranged on two sides of the beam body 62, a first straight line module 65 is arranged on the upper portion of one side of the beam, a second straight line module 66 is arranged on the lower portion of one side of the beam, a third straight line module 67 is installed in the Z-axis direction, and the adjusting device 64 is connected to the first straight line module 65 through the third straight line module 67; no. four sharp modules 68 are installed in the Y axle direction, and detection device 63 is connected to No. two sharp modules 66 through No. four sharp modules 68, and No. one sharp module 65, No. two sharp module 66, No. three sharp module 67 and No. four sharp module 68 signal connection to controller carry out automatically regulated according to the motorcycle type, make detection device 64 and adjusting device 64 aim at the wheel, carry out subsequent detection, adjustment work.
The adjustment device 64 includes a hydraulic ram 641 signally connected to the controller for adjusting the out-of-specification wheel sets.
A detection and adjustment device for a bogie of a high-speed rail and a motor car has the working principle that the wheelbases of a support adjusting mechanism 4 and a wheel set positioning mechanism 32 are adjusted according to the specification of the bogie to be detected, then the bogie of the high-speed rail and the motor car is conveyed to a lifting platform mechanism 3, four wheels are positioned on four V-shaped blocks 325, a first lifting mechanism 1 and a second lifting mechanism 22 work simultaneously to lift the bogie to the height to be detected, a controller controls an upright post mechanism 5 to adjust the height of a cross beam assembly body 6, when a laser ranging sensor 633 of a detection device 63 detects the position of the wheels of the bogie, the cross beam assembly body 6 stops working, three laser ranging sensors 633 of the detection device 63 detect the wheels of the bogie, two horizontally arranged laser ranging sensors 633 can detect the distance between the inner edge of the wheels and a reference surface to measure the installation gap between the wheel set and the frame, the difference value of the two sides is calculated through data comparison of the two sides of the same wheel pair, and a laser ranging sensor 633 which is vertically arranged adopts an algorithm to determine the circle center position and the diagonal dimension of the wheel, if the circle center position and the diagonal dimension meet the standard, the detection is passed, and if the circle center position and the diagonal dimension do not meet the standard, the adjustment device 64 continues to finish the detection and adjustment of the assembly clearance and the diagonal of the bogie until the circle center position and the diagonal dimension meet the standard.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A detection and adjustment device for a high-speed rail and motor car bogie is characterized in that: the device comprises a first-layer lifting mechanism, a second-layer lifting mechanism, a lifting platform mechanism, a supporting and adjusting mechanism, stand column mechanisms and a beam assembly body, wherein the first-layer lifting mechanism and the second-layer lifting mechanism are arranged in a foundation from bottom to top;
the beam assembly body comprises a support frame, a beam body, a detection device and an adjusting device, the beam body is connected to the sliding plate through the support frame, the detection device and the adjusting device which are identical in structure are arranged on two sides of the beam body, a first linear module is arranged on the upper portion of one side of the beam, a second linear module is arranged on the lower portion of one side of the beam, a third linear module is arranged in the Z-axis direction, and the adjusting device is connected to the first linear module through the third linear module; the detection device is connected to the second linear module through the fourth linear module, and the first linear module, the second linear module, the third linear module and the fourth linear module are in signal connection with the controller; the adjusting device comprises a hydraulic oil cylinder connected with the controller through signals;
the detection device comprises an inner side mounting plate and an outer side mounting plate, the inner side mounting plate is provided with a laser ranging sensor for vertical detection, the outer side mounting plate is provided with laser ranging sensors for horizontal detection of two sides, and the three laser ranging sensors are connected to the controller through signals.
2. The inspection and adjustment device for a high-speed railway, motor car bogie as claimed in claim 1, wherein: one deck elevating system includes the crane, the four corners of crane sets up screw lift No. one, the well lower part of crane is equipped with elevator motor No. one, the first lead screw that elevator motor drive X axle direction set up rotates, and two screw lifts of Y axle homonymy pass through the linkage of second lead screw, two second lead screw rotations of first lead screw through the steering gear simultaneous drive, elevator motor signal connection to controller.
3. The inspection and adjustment device for a high-speed railway, motor car bogie as claimed in claim 1, wherein: two layers of elevating system include the crane No. two, four No. two pillar bottoms of No. two cranes set up No. two lead screw lift, and No. two lead screw lift sets up on a crane, the well upper portion of a crane is equipped with elevator motor No. two, the third lead screw that No. two elevator motor drive X axle directions set up rotates, and two No. two lead screw lift of Y axle homonymy pass through the fourth lead screw linkage, the third lead screw passes through two fourth lead screw rotations of steering gear simultaneous drive, and No. two elevator motor signal connection are to the controller.
4. A detection and adjustment device for a high-speed railway, motor car bogie according to claim 3, characterized in that: lifting platform mechanism places on elevating system's four pillars No. one, lifting platform mechanism includes the platform main part, wheel set positioning mechanism, positioning motor, the location lead screw, the inside four corners of platform main part is equipped with a wheel set positioning mechanism respectively, platform main part both sides middle part is equipped with a positioning motor respectively, positioning motor is connected to two wheel set positioning mechanism of homonymy through two location lead screws, platform main part top both sides are equipped with a guide rail respectively, the both ends of guide rail are equipped with a logical groove, four wheel set positioning mechanism's V type piece sets up at four logical inslot, positioning motor signal connection is to the controller.
5. The inspection and adjustment device for a high-speed rail, railcar bogie according to claim 4, characterized in that: wheel set positioning mechanism includes translation frame, mounting bracket, slider, translation guide rail, V type piece and positioning oil cylinder, and translation frame fixed mounting is equipped with the translation guide rail to platform main part inner wall in the mounting bracket to the platform main part, and the location lead screw passes translation frame, and mounting bracket bottom one side is connected to the translation guide rail through the slider, and mounting bracket bottom opposite side is connected to the location lead screw through the nut, and the mounting bracket top is connected to V type piece through positioning oil cylinder and guide post.
6. The inspection and adjustment device for a high-speed rail, railcar bogie according to claim 5, characterized in that: four No. two pillar tops of two layers of crane all are equipped with one and support adjustment mechanism, support adjustment mechanism including supporting the base, the deflector, adjusting nut, the supporting shoe, the mounting panel top is connected to No. two mounting panels through the deflector, mounting panel middle part is through adjusting screw connection to No. two mounting panels, No. two mounting panels one side is equipped with adjusting motor, the supporting shoe cup joints in adjusting nut and deflector outside, and follows adjusting nut and remove, adjusting motor signal connection to controller.
7. The inspection and adjustment device for a high-speed railway, motor car bogie as claimed in claim 1, wherein: the stand mechanism includes the stand body, and the inside ball that is equipped with of stand body, stand body top are equipped with the stand motor, and ball is connected to the output of stand motor, and the crossbeam assembly body is connected to ball through slide nut, stand motor signal connection to controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010232939.6A CN111366384B (en) | 2020-03-28 | 2020-03-28 | Detection and adjustment equipment for bogie of high-speed rail and motor car |
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| CN202010232939.6A CN111366384B (en) | 2020-03-28 | 2020-03-28 | Detection and adjustment equipment for bogie of high-speed rail and motor car |
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| CN111366384B true CN111366384B (en) | 2022-02-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112110378A (en) * | 2020-09-21 | 2020-12-22 | 中车长春轨道客车股份有限公司 | Wheelbase adjustable self-centering bogie forming workbench |
| CN114346978A (en) * | 2021-11-25 | 2022-04-15 | 天津航天机电设备研究所 | Turnover assembly rack with lifting follower mechanism |
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| CN201382857Y (en) * | 2009-03-11 | 2010-01-13 | 北京维合大有机电设备有限公司 | Railway vehicle bogie static load test bench |
| CN102080983A (en) * | 2009-11-26 | 2011-06-01 | 中国北车集团大同电力机车有限责任公司 | Weighing, spring regulating and detecting device for bogey of railway locomotive |
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