CN108387353B - Double six-degree-of-freedom motion test platform for railway vehicle - Google Patents
Double six-degree-of-freedom motion test platform for railway vehicle Download PDFInfo
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- CN108387353B CN108387353B CN201810365047.6A CN201810365047A CN108387353B CN 108387353 B CN108387353 B CN 108387353B CN 201810365047 A CN201810365047 A CN 201810365047A CN 108387353 B CN108387353 B CN 108387353B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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Abstract
The invention relates to a double six-degree-of-freedom motion test platform for a railway vehicle. The six-degree-of-freedom motion test platform comprises two six-degree-of-freedom motion test platforms with the same structure, wherein each six-degree-of-freedom motion test platform comprises a motion platform, a transverse force application unit, a longitudinal force application unit, a vertical force application unit, a double-air-bag lifter and clamping test units which are fixed on the upper surface of the motion platform and are symmetrically arranged; directly fixing actuators on the supporting surfaces of the respective movable supporting seats, eliminating transverse force by restraining the actuators, and connecting oil inlets and oil outlets of the actuator oil cylinders with power source pipelines; the clamping test unit consists of a three-dimensional force measuring platform and a clamping device, and the clamping device is fixedly connected to the upper surface of the three-dimensional force measuring platform through a bolt. The invention can test the longitudinal, transverse, radial, gyration and roll stiffness of the railway vehicle bogie; the abrasion of the piston rod and the oil cylinder is reduced, and the service life is prolonged; the measurement accuracy is high, and the error is reduced; the automation degree is high, and the test is simple and convenient.
Description
Technical Field
The invention relates to a railway vehicle bogie parameter testing device, in particular to a railway vehicle double six-degree-of-freedom motion testing platform.
Background
The method is characterized in that the design and production of the bogie of the railway vehicle are influenced by factors such as a manufacturing process, the actual value and the theoretical value of the performance parameter are greatly different, whether the manufactured bogie meets the design performance requirement needs to be detected, and whether the performance parameter of the bogie of the railway vehicle is in a normal level needs to be detected regularly in order to ensure that a large amount of railway vehicles which are put into operation can run safely and reliably, so that the research and development of the equipment for detecting the performance parameter of the bogie is particularly important. At present, similar detection equipment at home and abroad has the problems of large system error, complicated manual operation process, high cost and maintenance cost and the like caused by structural design, so the detection requirement of the performance parameters of the bogie of the railway vehicle cannot be met.
Disclosure of Invention
The invention provides a double six-degree-of-freedom motion test platform for a railway vehicle, which aims to solve the problems that: testing the longitudinal, transverse and radial stiffness, the rotary stiffness and the roll stiffness of the bogie of the railway vehicle; the two ends of the pull rod use shaft pin structures, and the actuator is directly fixed on the supporting surface of the movable supporting seat, so that the transverse force is eliminated to a certain extent, the abrasion of the piston rod and the oil cylinder is reduced, and the service life is prolonged; the three-dimensional force measuring platform is adopted, so that the real load of the first and second suspension of the bogie of the railway vehicle, which is deformed, can be accurately measured; the automatic test device has high automation degree and is simpler and more convenient to test than similar equipment.
The technical scheme of the invention is described as follows by combining the attached drawings:
a double six-degree-of-freedom motion test platform for a railway vehicle comprises: the six-degree-of-freedom motion test platform A, B comprises a 1 and a 2 number six-degree-of-freedom motion test platform A, B with the same structure, wherein each six-degree-of-freedom motion test platform consists of a motion platform J, a transverse force application unit F rotationally connected to the motion platform J, a 1 and a 2 number longitudinal force application unit D, E, a 1 and a 2 number vertical force application unit L, M, a 1 and a 2 number double-airbag lifter K, U and a 1 and a 2 number card installing test unit G, H which are fixed on the upper surface of the motion platform J and symmetrically arranged, and the 1 and 2 number longitudinal force application units D, E, the transverse force application units F, the 1 and the 2 number vertical force application units L, M are respectively and fixedly installed on an actuator supporting;
the longitudinal force application units D, E No. 1 and No. 2 are identical in structure and respectively consist of a force application unit I No. 1 and a movable supporting seat II No. 1, the transverse force application unit F consists of a force application unit V No. 2 and a movable supporting seat III No. 2, the vertical force application units L, M No. 1 and No. 2 are identical in structure and respectively consist of a force application unit VI No. 3, a force application unit VII No. 4 and a movable supporting seat IV No. 3, the force application units I No. 1, No. 2, V No. 3 and VII No. 4 are identical in structure and respectively consist of a pull rod 17 and an actuator 20, the actuators 20 are directly fixed on supporting surfaces of the respective movable supporting seats, transverse force is eliminated by constraining the actuators 20, and oil inlet and outlet ports of an oil cylinder of the actuator 20 are connected with a power source pipeline;
the No. 1 and No. 2 clamping test unit G, H has the same structure and consists of a three-dimensional force measuring platform VIII and a clamp IX, wherein the clamp IX is fixedly connected to the upper surface of the three-dimensional force measuring platform VIII through a bolt.
The force application units I, V and VI No. 1, 2 and 3 respectively comprise a pin shaft 14, a joint bearing 15, a spherical hinge ear ring 16, a pull rod 17, a force measurement sensor 18, a double ear ring 19 and an actuator 20, wherein the force measurement sensor 18 is directly and fixedly connected to the end part of the pull rod 17, the other end of the pull rod 17 is rotatably connected with a hole in the side surface of the motion platform J through the spherical hinge ear ring 16, the other end of the force measurement sensor 18 is rotatably connected with the double ear ring 19 through the spherical hinge ear ring 16, the pin shaft 14 and the joint bearing 15 which are identical in structure, the double ear ring 19 is fixed on the actuator 20 through a bolt, the pin shaft 14 is in close fit with an inner hole of the joint bearing 15, the joint bearing 15 is in close fit with a through hole of the spherical hinge ear ring 16, and a shaft hole in the double ear ring 19 is rotatably connected with the pin shaft.
The three-dimensional force measuring platform VIII is composed of a force measuring platform upper plate 7, a force measuring platform base 13, and three-dimensional force sensors 8, 9, 10 and 11 1, 2, 3 and 4, wherein the three-dimensional force sensors 8, 9, 10 and 11 1, 2, 3 and 4 are respectively fixed at four corners between the force measuring platform base 13 and the force measuring platform upper plate 7 through bolts.
Fixture IX by 1 number inside callipers formula fender 1, 2 numbers inside callipers formula fender 2, 1 number tie bolt 3, 2 numbers tie bolt 4, 1 number straight clamp plate of wheel 5 and 2 numbers straight clamp plate 6 of wheel constitute, 1 numbers inside callipers formula fender 1 and 2 numbers inside callipers formula fender 2 structures are the same, symmetrical fixed connection is on force measuring platform upper plate 7 upper surface to through 1 number tie bolt 3, 4 fixed connection of 2 numbers tie bolt, 1 numbers straight clamp plate of wheel 5 and 2 numbers straight clamp plate of wheel 6 structures are the same, and the horizontal symmetrical fixed connection is on force measuring platform upper plate 7 upper surface in the middle of 1 numbers inside callipers formula fender 1 and 2 numbers inside callipers formula fender 2.
The No. 1 and No. 2 double-airbag lifters K, U have the same structure and respectively consist of a welding bracket 21, a No. 1 air spring lifter 22, a No. 2 air spring lifter 25, a nylon sleeve 23 and a round nut 24, the No. 1 air spring lifter 22 and the No. 2 air spring lifter 25 are symmetrically fixed in the welding bracket 21 through the nylon sleeve 23 and the round nut 24 which have the same structure, and the No. 1 and No. 2 double-airbag lifters K, U have two states of inflation and deflation; the No. 1 and No. 2 double-airbag lifters K, U are arranged on the No. 3 movable supporting seat IV in bilateral symmetry and are positioned between the moving platform J and the No. 3 movable supporting seat IV.
The invention has the beneficial effects that:
1. the double six-degree-of-freedom motion test platform for the railway vehicle can test the longitudinal rigidity, the transverse rigidity, the radial rigidity, the rotary rigidity and the roll rigidity of a bogie of the railway vehicle.
2. According to the invention, the shaft pin structures are used at two ends of the pull rod, and the actuator is fixed on the supporting surface of the movable supporting seat, so that the transverse force is eliminated to a certain extent, the abrasion of the piston rod and the oil cylinder is reduced, and the service life is prolonged.
3. The invention adopts the three-dimensional force measuring platform, and can realize accurate measurement of the real load on the deformation of the primary and secondary suspensions of the bogie of the railway vehicle. The three-dimensional force measuring platform is fixedly connected with the clamp, the force and the moment of each wheel in three directions can be measured while the wheel pair of the rail vehicle is fixed, the measurement is more accurate than that of the wheel pair arranged on an actuator, and errors are reduced.
4. The automation degree is high, and the test is simpler and more convenient than similar equipment.
Drawings
FIG. 1 is an isometric projection of a dual six-DOF motion test platform configuration of a railway vehicle according to the present invention;
FIG. 2 is an upper and lower isometric projection of the structure of the double six-degree-of-freedom motion testing platform for a railway vehicle, provided with a tested piece;
FIG. 3 is an isometric view of a six degree of freedom motion test platform configuration number 1 comprising the two six degree of freedom motion test platforms of a railway vehicle in accordance with the present invention;
FIG. 4 is an isometric projection of the longitudinal force application unit configuration # 1 comprising either a six degree-of-freedom motion test platform # 1 or a six degree-of-freedom motion test platform # 2;
FIG. 5 is an isometric view of the configuration of the lateral force application unit that makes up a six degree-of-freedom motion test platform No. 1 or a six degree-of-freedom motion test platform No. 2;
FIG. 6 is an isometric projection of the configuration of vertical force application unit # 1 comprising either a motion test platform # 1 or a motion test platform # 2 with six degrees of freedom;
FIG. 7 is an axonometric view of an exploded view of force application unit # 1, which constitutes longitudinal force application unit # 1;
FIG. 8 is an isometric projection of a number 1 dual bladder lift comprising a number 1 six degree of freedom motion test platform or a number 2 six degree of freedom motion test platform;
FIG. 9 is an isometric projection of a motion platform comprising a six degree-of-freedom motion test platform # 1 or a six degree-of-freedom motion test platform # 2;
FIG. 10-a is a schematic view of a section A-A of a motion platform constituting a six-DOF motion test platform No. 1 or a six-DOF motion test platform No. 2;
FIG. 10-b is a rotational cross-sectional view of section A-A of a motion platform comprising a number 1 six degree-of-freedom motion test platform or a number 2 six degree-of-freedom motion test platform;
FIG. 10-c is a schematic view of a section B-B of a motion platform constituting a six degree-of-freedom motion test platform No. 1 or a six degree-of-freedom motion test platform No. 2;
FIG. 10-d is a cross-sectional view of section B-B of the motion platform comprising a six degree-of-freedom motion test platform No. 1 or a six degree-of-freedom motion test platform No. 2;
FIG. 11 is an isometric projection of a No. 1 chucking test unit comprising either a No. 1 six degree of freedom motion testing platform or a No. 2 six degree of freedom motion testing platform;
FIG. 12 is an isometric projection showing an exploded view of the fixture comprising the card loading test unit;
FIG. 13 is an isometric projection drawing showing an exploded view of a three-dimensional force platform comprising a chucked test cell;
FIG. 14 is an isometric projection view showing a three-dimensional force transducer # 1 of the three-dimensional force platform comprising the chucked test cell;
FIG. 15 is an isometric projection of a vertical actuator-supported T-slot platform or a lateral actuator-supported T-slot platform that comprise the dual six-degree-of-freedom motion testing platform for a railway vehicle in accordance with the present invention;
figure 16 is an isometric projection of a longitudinal actuator support T-slot platform comprising the dual six degree-of-freedom motion test platform for a railway vehicle according to the present invention.
In the figure:
a.1 number six-freedom-degree motion test platform, B.2 number six-freedom-degree motion test platform, C. tested piece D.1 number longitudinal force application unit, E.2 number longitudinal force application unit, F. transverse force application unit, G.1 number clamping test unit, H.2 number clamping test unit, J. motion platform, K.1 number double-airbag lifter, L.1 number vertical force application unit, M.2 number vertical force application unit, N.1 number vertical actuator support, T-shaped groove platform, O. transverse actuator support, T-shaped groove platform, P.1 number longitudinal actuator support T-shaped groove platform, Q.2 number longitudinal actuator support T-shaped groove platform, R.2 number vertical actuator support T-shaped groove platform, S.3 number longitudinal support T-shaped groove platform, T.4 number longitudinal actuator support T-shaped groove platform, U.2 number double-airbag lifter, I.1 number force application unit, II.1 number mobile support base, 2 number mobile support base, IV.3 number mobile support base, v.2 application of force unit, VI.3 application of force unit, VII.4 application of force unit, VIII.three-dimensional force measuring platform, IX.fixture, 1.1 inside clamping type wheel block, 2.2 inside clamping type wheel block, 3.1 tensioning bolt, 4.2 tensioning bolt, 5.1 number wheel straight pressing plate, 6.2 number wheel straight pressing plate, 7 number force measuring platform upper plate, 8.1 number three-dimensional force sensor, 9.2 number three-dimensional force sensor, 10.3 number three-dimensional force sensor, 11.4 number three-dimensional force sensor, 12 number junction box, 13 number force measuring platform base, 14 number pin shaft, 15 number joint bearing, 16 number ball hinge lug ring, 17 number pull rod, 18 number force measuring sensor, 19 number two lug ring, 20 number actuator, 21 number welding support, 22.1 number lifter, 23 number nylon sleeve, 24 number round nut, 25.2 number air spring lifter, 26 number air spring locking nut, 27 number expansion sleeve
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
referring to fig. 1 and 2, the double-six-degree-of-freedom motion test platform of the railway vehicle bogie comprises a 1 # six-degree-of-freedom motion test platform A, a 2 # six-degree-of-freedom motion test platform B, a 1 # vertical actuator supporting T-shaped groove platform N, a 2 # vertical actuator supporting T-shaped groove platform R, a transverse actuator supporting T-shaped groove platform O, a 1 # longitudinal actuator supporting T-shaped groove platform P, a 2 # longitudinal actuator supporting T-shaped groove platform Q, a 3 # longitudinal actuator supporting T-shaped groove platform S, a 4 # longitudinal actuator supporting T-shaped groove platform T and a power source. Wherein No. 1 six degree of freedom motion test platform A and No. 2 six degree of freedom motion test platform B structures are the same, and No. 1 longitudinal actuator supports T type groove platform P, No. 2 longitudinal actuator supports T type groove platform Q, No. 3 longitudinal actuator supports T type groove platform S and No. 4 longitudinal actuator supports T type groove platform T structure the same, and No. 1 vertical actuator supports T type groove platform N and No. 2 vertical actuator supports T type groove platform R structure the same.
No. 1 vertical actuator supports T type groove platform M and No. 2 vertical actuator supports T type groove platform R and passes through rag bolt and ground fixed connection, both are 640mm along Y axle bilateral symmetry and parallel distance, 1 No. six degrees of freedom motion test platform A and No. 2 six degrees of freedom motion test platform B are installed along X axle direction bilateral symmetry and are supported T type groove platform N and No. 2 vertical actuator and support T type groove platform R upper surface at 1 vertical actuator, parallel distance between the two is 1 ~ 4M, 1 No. six degrees of freedom motion test platform A and No. 2 six degrees of freedom motion test platform B and power supply tube coupling.
Referring to fig. 3, the No. 1 six-degree-of-freedom motion test platform a or the No. 2 six-degree-of-freedom motion test platform B is mainly composed of a No. 1 longitudinal force application unit D, a No. 2 longitudinal force application unit E, a transverse force application unit F, a No. 1 chucking test unit G, a No. 2 chucking test unit H, a motion platform J, a No. 1 double-airbag lifter K, a No. 2 double-airbag lifter U, a No. 1 vertical force application unit L, and a No. 2 vertical force application unit M. No. 1 vertical force application unit D is the same with No. 2 vertical force application unit E structure, and No. 1 vertical force application unit L is the same with No. 2 vertical force application unit M structure, and No. 1 dress card test unit G is the same with No. 2 dress card test unit H structure, and No. 1 double-airbag lift K, No. 2 double-airbag lift U structure are the same.
Referring to fig. 1 and 3, the lower end of the moving platform J is rotatably connected with the upper ends of the vertical force application units L and M No. 1, and the lower ends of the vertical force application units L and M No. 2 are respectively and fixedly connected with the vertical actuator supporting T-shaped groove platform N No. 1 and the vertical actuator supporting T-shaped groove platform R No. 2. The front end side of motion platform J rotates with the one end of No. 1 vertical application of force unit D and No. 2 vertical application of force unit E who sets up along the Y direction and is connected, the other end of No. 1 vertical application of force unit D and No. 2 vertical application of force unit E supports T type groove platform P and No. 2 vertical actuator support T type groove platform Q fixed connection with No. 1 vertical actuator respectively, No. 1 vertical actuator supports T type groove platform P and No. 2 vertical actuator and supports T type groove platform Q and pass through rag bolt and ground fixed connection, should make No. 1 vertical application of force unit D and No. 2 vertical application of force unit E's plane of symmetry keep parallel. The right end side face of the moving platform J is rotatably connected with one end of a transverse force application unit F arranged along the X direction, and the other end of the transverse force application unit F is fixedly connected with the transverse actuator support T-shaped groove platform O through foundation bolts and a foundation. The No. 1 card installing test unit G and the No. 2 card installing test unit H are fixed on the upper end surface of the moving platform J in a bilateral symmetry mode along the Y direction, the No. 1 card installing test unit G or the No. 2 card installing test unit H is in a symmetrical structure along the X direction, and the symmetrical surface of the No. 1 card installing test unit G or the No. 2 card installing test unit H is coplanar with the symmetrical surface of the transverse force application unit F.
Referring to fig. 1, 4 to 6, the longitudinal force application unit D No. 1 and the longitudinal force application unit E No. 2 are mainly composed of a force application unit I No. 1 and a moving support base II No. 1. One end of the force application unit I No. 1 is rotatably connected with the motion platform J, the other end of the force application unit I No. 1 is fixedly connected with the movable supporting seat II No. 1, and the movable supporting seat II No. 1 is fixedly connected with the longitudinal actuator supporting T-shaped groove platform P No. 1. The transverse force application unit F mainly comprises a force application unit V No. 2 and a movable supporting seat III No. 2, one end of the force application unit V No. 2 is rotatably connected with the moving platform J, the other end of the force application unit V No. 2 is fixedly connected with the movable supporting seat III No. 2, and the movable supporting seat III No. 2 is fixedly connected with the transverse actuator supporting T-shaped groove platform O. No. 1 vertical force application unit L mainly comprises No. 3 force application unit VI, No. 4 force application unit VII, No. 3 mobile bearing seat IV, and the upper end and the motion platform J of No. 3 force application unit VI, No. 4 force application unit VII are connected with rotating, and No. 3 force application unit VI, No. 4 force application unit VII other end and No. 3 mobile bearing seat IV fixed connection, No. 3 mobile bearing seat IV and No. 1 vertical actuator support T type groove platform N fixed connection. No. 1 movable supporting seat II, No. 2 movable supporting seat III and No. 3 movable supporting seat IV are box structural members which are formed by welding or casting steel plates and have certain strength and rigidity, the upper ends of No. 1 movable supporting seat II, No. 2 movable supporting seat III and No. 3 movable supporting seat IV, namely the connection part of the upper ends and the actuator, are provided with bolt holes, and the lower ends of the upper ends and the connection part of the lower ends and the T-shaped groove platform are uniformly provided with bolt holes.
Referring to fig. 3 and 7, the force application unit I No. 1 mainly comprises a pin 14, a knuckle bearing 15, a ball pivot ear ring 16, a pull rod 17, a force sensor 18, a double ear ring 19, and an actuator 20; the pull rod 17 is fixedly connected with the force measuring sensor 18, the other end of the pull rod is rotatably connected with a hole structure on the side face of the motion platform J through a spherical hinge ear ring 16, the other end of the force measuring sensor 18 is rotatably connected with a double-lug ring 19 through the spherical hinge ear ring 16 with the same structure, and finally the double-lug ring 19 is fixed on the actuator 20 through a bolt. The middle part of the pin shaft 14 is inserted into an inner hole of the knuckle bearing 15 in a tight fit mode, the knuckle bearing 15 is inserted into a through hole of the spherical hinge ear ring 16 in a tight fit mode, and a shaft hole in the double ear ring 19 is in movable fit and rotary connection with the pin shaft in the spherical hinge ear ring. The symmetry axis of the pin shaft 14, the symmetry axis of the knuckle bearing 15, the symmetry axis of the through hole of the ball hinge ear ring 16 and the symmetry axis of the through hole of the double ear ring 19 are collinear.
Referring to fig. 3 and 8, the No. 1 dual air bag lifter K is composed of a welding bracket 21, a No. 1 air spring lifter 22, a No. 2 air spring lifter 25, a nylon sleeve 23 and a round nut 24, the dual air bag lifter K is of a bilateral symmetry structure, the No. 1 air spring lifter 22 and the No. 2 air spring lifter 25 are symmetrically fixed on the upper surface of the welding bracket 21 through the nylon sleeve 23 and the round nut 24 which are of the same structure, and the symmetry axes of the No. 1 air spring lifter 22 and the No. 2 air spring lifter 25 are collinear with the symmetry axis of the welding bracket 21 along the X-axis direction. Bolt holes are uniformly formed in the lower end of the welding support 21, namely the position where the welding support contacts with the No. 3 movable supporting seat IV, and the welding support and the No. 3 movable supporting seat IV are fixedly connected through bolts.
Referring to fig. 3 and 9, the motion platform J has a box structure, two long circular holes are respectively formed at two ends of the side surface of the front end and the side surface of the rear end of the motion platform in the Y-axis direction, four circular holes are formed at four corners of the lower end of the motion platform, a square hole is formed in the side surface of the right end of the motion platform, and the motion platform is in a left-right symmetrical structure about the X-axis direction. The three holes are all provided with another small round hole structure in the vertical direction, and the shaft pin 14 in the force application unit is fixed through the structure and is in running fit. The structures of the force application unit I No. 1, the force application unit V No. 2, the force application unit VI No. 3 and the force application unit VII No. 4 are the same. The left long circular hole structures on the side surfaces of the front ends of the two ends of the moving platform J are rotatably connected with one end of the No. 1 force application unit I in the No. 1 longitudinal force application unit D through a spherical hinge ear ring 16, and the No. 2 longitudinal force application unit E and the No. 1 longitudinal force application unit D are symmetrically arranged in the right long circular hole structure; the square hole structure on the right end side surface of the moving platform J is rotationally connected with a spherical hinge ear ring with the same structure as the No. 2 force application unit V in the transverse force application unit F (and the spherical hinge ear ring 16 in the No. 1 force application unit I); no. 3 force application unit VI in the vertical force application unit L of No. 1, the upper end of No. 4 force application unit VII rotate through the ball pivot earrings that 16 structures the same in the ball pivot earrings of No. 1 force application unit I and the left round hole structure of motion platform J lower extreme and are connected, and No. 2 vertical force application unit M and No. 1 vertical force application unit L symmetry installation rotate in two round hole structures on motion platform J lower extreme right side and are connected. The oil inlet and outlet on the force application unit I No. 1, the force application unit V No. 2, the force application unit VI No. 3 and the force application unit VII No. 4 are connected with a power source.
Referring to fig. 11, the No. 1 chucking test unit G is mainly composed of a three-dimensional force measuring platform viii and a chucking ix platform, and a lower working surface of the chucking ix is in contact with an upper working surface of the three-dimensional force measuring platform viii and is fixedly connected thereto by bolts.
Referring to fig. 12, the fixture ix mainly comprises a number 1 inner clamping type wheel chock 1, a number 2 inner clamping type wheel chock 2, a number 1 tension bolt 3, a number 2 tension bolt 4, a number 1 wheel straight pressing plate 5 and a number 2 wheel straight pressing plate 6, wherein the number 1 inner clamping type wheel chock 1 and the number 2 inner clamping type wheel chock 12 with the same structure are symmetrically and fixedly connected in the middle of the upper surface of a force measuring platform upper plate 7 along the Y-axis direction, the upper ends of the two symmetrically arranged number 1 inner clamping type wheel chock 1 and the number 2 inner clamping type wheel chock 2 are fixedly connected from the two sides of the number 1 inner clamping type wheel chock 1 and the number 2 inner clamping type wheel chock 2 with the same structure through the number 1 tension bolt 3 and the number 2 tension bolt 4 with the same structure, the No. 1 wheel straight pressing plate 5 and the No. 2 wheel straight pressing plate 6 which are identical in structure are fixedly connected to the upper surface of the force measuring platform upper plate 7 in a transverse symmetrical mode between the No. 1 inner clamping type wheel chock 1 and the No. 2 inner clamping type wheel chock 2.
Referring to fig. 13 and 14, the three-dimensional force measuring platform viii is composed of a force measuring platform upper plate 7, a three-dimensional force sensor No. 1, a three-dimensional force sensor No. 2, a three-dimensional force sensor No. 3, a three-dimensional force sensor No. 4, a junction box 12, and a force measuring platform base 13. The force measuring platform base 13 is a plate-type structural member, through holes for inserting bolts are uniformly distributed on two opposite sides of the force measuring platform base 13, square holes and bolt holes for fixing the No. 1 three-dimensional force sensor 8, the No. 2 three-dimensional force sensor 9, the No. 3 three-dimensional force sensor 10 and the No. 4 three-dimensional force sensor 11 are arranged at four corners of the force measuring platform base 13, an upper bedplate 8 of the force measuring platform is a casting, through holes for fixing the No. 1 three-dimensional force sensor 7, the No. 2 three-dimensional force sensor 16, the No. 3 three-dimensional force sensor 17 and the No. 4 three-dimensional force sensor 18 are arranged at four corners of an upper plate 7 of the force measuring platform, and two rows of threaded holes for fixing the fixture IX are arranged on an upper working surface. No. 1 three-dimensional force sensor 8, No. 2 three-dimensional force sensor 9, No. 3 three-dimensional force sensor 10 and No. 4 three-dimensional force sensor 11 are respectively installed at four square holes of three-dimensional force measuring platform VIII and fixedly connected by bolts, and No. 1 three-dimensional force sensor 8, No. 2 three-dimensional force sensor 9, No. 3 three-dimensional force sensor 10 and No. 4 three-dimensional force sensor 11 are fixedly connected with a round hole on the upper surface of force measuring platform upper plate 7 through an expansion sleeve 27 and are locked and fixed by a locking nut 26.
Referring to fig. 15 and 16, the vertical actuator supporting T-shaped groove platform P of No. 1, the horizontal actuator supporting T-shaped groove platform O and the vertical actuator supporting T-shaped groove platform N of No. 1 are casting platforms with similar structures, the upper working surface is processed with T-shaped grooves, and bolt holes are uniformly processed on two sides of the lower end, namely, the contact position with the foundation. No. 1 vertical actuator supports T type groove platform N, horizontal actuator supports T type groove platform O and No. 1 vertical actuator supports T type groove platform P and passes through the bolt fastening on the ground, and the lower extreme of No. 1 removal bearing II, No. 2 removal bearing III and No. 3 removal bearing IV is fixed respectively on the upper working face that No. 1 vertical actuator supported T type groove platform P, horizontal actuator supported T type groove platform O and No. 1 vertical actuator supported T type groove platform N through the bolt.
Claims (4)
1. The utility model provides a two six degree of freedom motion test platform of rail vehicle, including 1 that the structure is the same, No. 2 six degree of freedom motion test platform (A, B), every six degree of freedom motion test platform is by motion platform (J), rotate horizontal force application unit (F) of connection on motion platform (J), 1, No. 2 vertical force application unit (D, E), 1, No. 2 vertical force application unit (L, M) and 1, No. 2 two gasbag lifters (K, U) and fix and form at motion platform (J) upper surface and symmetrical arrangement's 1, No. 2 dress card test unit (G, H), 1, No. 2 vertical force application unit (D, E), horizontal force application unit (F), 1, No. 2 vertical force application unit (L, M) divide equally and do not fixed mounting on actuator support T type groove platform, its characterized in that:
the No. 1 and No. 2 longitudinal force application units (D, E) have the same structure and respectively consist of a No. 1 force application unit (I) and a No. 1 movable supporting seat (II), the transverse force application unit (F) consists of a No. 2 force application unit (V)) and a No. 2 moving support seat (III), the No. 1 and No. 2 vertical force application units (L, M) have the same structure and respectively consist of a No. 3 force application unit (VI), a No. 4 force application unit (VII) and a No. 3 movable supporting seat (IV), the No. 1 force application unit (I), the No. 2 force application unit (V), the No. 3 force application unit (VI) and the No. 4 force application unit (VII) have the same structure and respectively consist of a pull rod (17) and an actuator (20), the actuator (20) is directly fixed on the supporting surface of each mobile supporting seat, the transverse force is eliminated by restraining the actuator (20), and an oil inlet and an oil outlet of an oil cylinder of the actuator (20) are connected with a power source pipeline;
the No. 1 and No. 2 clamping test unit (G, H) has the same structure and consists of a three-dimensional force measuring platform (VIII) and a clamp (IX), and the clamp (IX) is fixedly connected to the upper surface of the three-dimensional force measuring platform (VIII) through a bolt;
the No. 1 and No. 2 double-airbag lifters (K, U) are identical in structure and respectively consist of a welding support (21), a No. 1 air spring lifter (22), a No. 2 air spring lifter (25), a nylon sleeve (23) and a round nut (24), the No. 1 air spring lifter (22) and the No. 2 air spring lifter (25) are symmetrically fixed in the welding support (21) through the nylon sleeve (23) and the round nut (24) which are identical in structure, and the No. 1 and No. 2 double-airbag lifters (K, U) are in an inflation state and a deflation state; the No. 1 and No. 2 double-airbag lifting devices (K, U) are arranged on the No. 3 movable supporting seat (IV) in bilateral symmetry and are positioned between the motion platform (J) and the No. 3 movable supporting seat (IV).
2. The two-six degree of freedom motion testing platform for rail vehicles according to claim 1, characterized in that:
the force application units (I, V and VI) No. 1, 2 and 3 respectively comprise a pin shaft (14), a joint bearing (15), a spherical hinge lug ring (16), a pull rod (17), a force measurement sensor (18), a double lug ring (19) and an actuator (20), the force measurement sensor (18) is directly and fixedly connected with the end part of the pull rod (17), the other end of the pull rod (17) is rotatably connected with a hole in the side surface of the motion platform (J) through the spherical hinge lug ring (16), the other end of the force measurement sensor (18) is rotatably connected with the double lug ring (19) through the spherical hinge lug ring (16), the pin shaft (14) and the joint bearing (15) which are identical in structure, finally the double lug ring (19) is fixed on the actuator (20) through a bolt, the pin shaft (14) is tightly matched with an inner hole of the joint bearing (15), the joint bearing (15) is tightly matched with a through hole of the spherical hinge lug ring (16), the shaft holes on the double-ear rings (19) are in movable fit and rotary connection with the pin shafts in the spherical hinge ear rings (16).
3. The two-six degree of freedom motion testing platform for rail vehicles according to claim 1, characterized in that:
the three-dimensional force measuring platform (VIII) consists of a force measuring platform upper plate (7), a force measuring platform base (13) and three-dimensional force sensors (8, 9, 10 and 11) 1, 2, 3 and 4, wherein the three-dimensional force sensors (8, 9, 10 and 11) 1, 2, 3 and 4 are respectively fixed at four corners between the force measuring platform base (13) and the force measuring platform upper plate (7) through bolts.
4. The two-six degree of freedom motion testing platform for rail vehicles according to claim 1, characterized in that:
fixture (IX) by No. 1 inside callipers formula fender (1), No. 2 inside callipers formula fender (2), straining bolt (3) No. 1, straining bolt (4) No. 2, No. 1 wheel straight clamp plate (5) and No. 2 wheel straight clamp plate (6) are constituteed, No. 1 inside callipers formula fender (1) and No. 2 inside callipers formula fender (2) structure are the same, and symmetry fixed connection is on dynamometry platform upper plate (7) upper surface to through 1 straining bolt (3), No. 2 straining bolt (4) fixed connection, No. 1 wheel straight clamp plate (5) and No. 2 wheel straight clamp plate (6) structure are the same, and horizontal symmetry fixed connection is at the upper surface of dynamometry platform upper plate (7) in the middle of 1 inside callipers formula fender (1) and No. 2 inside callipers formula fender (2).
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| CN2018100374915 | 2018-01-16 | ||
| CN201810037491 | 2018-01-16 |
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| CN114112155B (en) * | 2020-08-26 | 2022-10-14 | 中国科学院沈阳自动化研究所 | Horizontal two-degree-of-freedom force measuring rack with large bearing capacity |
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| CN101261191A (en) * | 2008-04-23 | 2008-09-10 | 西南交通大学 | Test stand capable of simultaneously measuring railway stock bogie three-way rigidity |
| KR20090094201A (en) * | 2009-07-21 | 2009-09-04 | 한국철도기술연구원 | Bogie car Test system using the Bogie car Test apparatus |
| CN101750195A (en) * | 2009-12-25 | 2010-06-23 | 吉林大学 | Double six degree-of-freedom motion testing platform for railway vehicle bogie |
| CN106092599A (en) * | 2016-05-30 | 2016-11-09 | 长春速建新技术开发有限公司 | Sedan lifted type air bag lifting brake testing stand |
| CN208043365U (en) * | 2018-01-16 | 2018-11-02 | 吉林大学 | Rail vehicle double six degree-of-freedom motion testing platform |
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2018
- 2018-04-23 CN CN201810365047.6A patent/CN108387353B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261191A (en) * | 2008-04-23 | 2008-09-10 | 西南交通大学 | Test stand capable of simultaneously measuring railway stock bogie three-way rigidity |
| KR20090094201A (en) * | 2009-07-21 | 2009-09-04 | 한국철도기술연구원 | Bogie car Test system using the Bogie car Test apparatus |
| CN101750195A (en) * | 2009-12-25 | 2010-06-23 | 吉林大学 | Double six degree-of-freedom motion testing platform for railway vehicle bogie |
| CN106092599A (en) * | 2016-05-30 | 2016-11-09 | 长春速建新技术开发有限公司 | Sedan lifted type air bag lifting brake testing stand |
| CN208043365U (en) * | 2018-01-16 | 2018-11-02 | 吉林大学 | Rail vehicle double six degree-of-freedom motion testing platform |
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