CN204202888U - A kind of Efficient track bogie of car static test equipment - Google Patents
A kind of Efficient track bogie of car static test equipment Download PDFInfo
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- CN204202888U CN204202888U CN201420604180.XU CN201420604180U CN204202888U CN 204202888 U CN204202888 U CN 204202888U CN 201420604180 U CN201420604180 U CN 201420604180U CN 204202888 U CN204202888 U CN 204202888U
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Abstract
The utility model relates to a kind of Efficient track bogie of car static test equipment, comprises static test bed and empty spring systems test bed.The utility model by including the empty spring systems test bed of portal frame and hydraulic cylinder, and increases by 2 road hydraulic circuits in static test bed, for providing loading source for the loading of empty spring systems test bed; In static test bed, increase by 2 tunnels inflation gas circuits, for providing air spring source of inflation gas for empty spring systems test bed, to realize air-tight test to air spring and differential pressure valve action test simultaneously.The work such as air spring air-tight test, differential pressure valve action test is only carried out by empty spring systems test bed; And bogie static test bed only carry out measuring bogie wheel load and difference thereof, Y-axis apart from and the work such as difference, catercorner length and difference thereof, the adjustment of gear case suspension rod height and printout total Test result; And two testing tables share a set of control system, work alone, and substantially increase detection efficiency simultaneously.
Description
Technical field
The utility model belongs to rail vehicle and manufactures field, particularly relates to a kind of rail vehicle truck static test equipment efficiently.
Background technology
The bogie of rail vehicle is a critical component of rail vehicle, its direct bearing body deadweight and load-carrying, guided vehicle runs along railroad track, ensures that vehicle is smoothly by curve, and have slow down from during vehicle operating due to effect that track irregularity brings vibration and impacts.Therefore, need to utilize testing table to test the performance that bogie is assembled, be specially the measurement to bogie wheel load and difference thereof, Y-axis apart from and the measurement of difference, catercorner length and the measurement of difference thereof, the measurement of empty spring air-tight test, differential pressure valve action test, gear case suspension rod height adjustment etc. test, and in prior art, the general bogie static test bed that adopts completes above-mentioned all experiment works.As can be seen here, more and the particular importance of the work born of existing bogie static test bed, with regard to the working time of this testing table, complete all pilot projects and generally need 1.5 hours, seriously constrain the efficiency that bogie assembly production chain is produced, particularly along with the raising of other tooling device efficiency, existing bogie static test bed has become one of bottleneck improving assembling bogie production efficiency.In addition, existing bogie static test bed is when testing a certain project, and the function of other device wherein had nothing to do with this project of test is idle, causes the great wasting of resources.
Utility model content
The purpose of this utility model is the shortcoming and defect in order to solve above-mentioned prior art, provides a kind of Efficient track bogie of car static test equipment improving experiment work efficiency, the function that can play each device better, saving equipment and construction investment.
The utility model is achieved through the following technical solutions: a kind of Efficient track bogie of car static test equipment, comprises
One for measure bogie wheel load and difference thereof, Y-axis apart from and difference, catercorner length and difference thereof, adjustment gear suspension rod height and printout total Test result static test bed; This static test bed comprises operation switch board, oil pump air pump assembly, test mechanism and support; Described operation switch board, oil pump air pump assembly and test mechanism are fixedly arranged on support, and described oil pump air pump assembly and test mechanism are electrically connected with operation switch board respectively, and control its duty by operation switch board;
And one for completing the empty spring systems test bed of bogie air spring air-tight test and differential pressure valve action test; This sky spring system experimental comprises sky spring portal frame, for the two empty spring load cylinders of simulating car body load-carrying and the two empty spring gas ductings for the air spring air feed for bogie; Described two empty spring load cylinders are vertically fixedly arranged in sky spring portal frame, and its input end to be communicated with the oil sources delivery outlet of oil pump air pump assembly respectively by an oil pipe and to connect; Described two empty spring gas ductings are fixedly arranged in sky spring portal frame respectively, and its input port is communicated with the source of the gas delivery outlet of oil pump air pump assembly respectively and connects, and its delivery outlet respectively output terminal of spring load cylinder empty with two is communicated with and connects.
The oil sources equipped at outlet port of described oil pump air pump assembly is divided into 4 separate hydraulic circuits by a working connection: wherein 2 hydraulic circuits respectively spring load cylinder empty with two be connected in series, for simulating loading test being turned to built on stilts spring; Other 2 hydraulic circuits are connected in series with test mechanism respectively, for simulating loading test being turned to built on stilts spring; The source of the gas equipped at outlet port of oil pump air pump assembly is divided into 4 separate inflation gas circuits by a main gas circuit, and every 2 inflation gas circuits are connected with the air intake opening of static test bed with the empty spring gas ducting of empty spring systems test bed respectively.
The hydraulic control valve that the input end of described two empty spring load cylinders also be electrically connected with operation switch board respectively by one is connected in series with wherein 2 hydraulic circuits, the input port of described two empty spring gas ductings respectively by one with operate gas path control valve that switch board is electrically connected with wherein 2 inflate gas circuit and be communicated with and connect.
The beneficial effects of the utility model are: by empty spring systems test bed (in the utility model, empty spring is the abbreviation of air spring), complete the work such as empty spring air-tight test and differential pressure valve action test to bogie; By static test bed, complete bogie is carried out that wheel load and difference thereof are measured, Y-axis apart from and the work such as difference is measured, diagonal line and difference is measured, the adjustment of gear case suspension rod height, meet two bogies and test simultaneously.Carry Jing Tai with current domestic and international existing bogie to compare, the air spring air-tight test not high with static load measure the item relevance and differential pressure valve action test are separated, and air spring air-tight test and the time needed for differential pressure valve action test are about 45 minutes.Therefore, shared by the work of empty spring systems test bed to current domestic and international existing static test bed, the measure the item being equivalent to bogie all only needs about 45 minutes, compare existing test required time and decrease half in 1.5 hours, substantially increase test efficiency and the effect of each device and structure is played fully.Further, a set of oil pump air pump assembly and operation switch board is shared by static test bed and empty spring systems test bed, the operation of empty spring systems test bed and static test bed shares a set of control system and software and hardware, on the input and output software of the operating system of operation switch board, by the operation interface of two testing tables separately, and make each bogie corresponding with two testing tables respectively use the operation interface of self, be conducive to operation of avoiding confusion like this.Therefore, the utility model Efficient track bogie of car static test equipment substantially increases experiment work efficiency, can play the function of each device better, dramatically saves on equipment and construction investment.
In order to understand better and implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Efficient track bogie of car static test equipment;
Fig. 2 is the structural representation of static test bed of the present utility model;
Fig. 3 is the structure enlarged diagram in Fig. 2 shown in A;
Fig. 4 is the structural representation of empty spring systems test bed of the present utility model.
Embodiment
Refer to Fig. 1, the utility model Efficient track bogie of car static test equipment comprises static test bed 1 and empty spring systems test bed 2.By empty spring systems test bed 2, complete the work such as air spring air-tight test and differential pressure valve action test to bogie; When the test of empty spring by after, again by static test bed 1, complete the wheel load of bogie and difference thereof are measured, Y-axis apart from and the work such as difference is measured, diagonal line and difference is measured, the adjustment of gear case suspension rod height, achieve two bogies and test simultaneously.Contrast current domestic and international existing static test bed, the air spring air-tight test not high with other measure the item relevances and differential pressure valve action test are separated by the utility model, and air spring air-tight test and the time needed for differential pressure valve action test are about 45 minutes.Therefore, shared by the work of empty spring systems test bed 2 pairs of static test beds 1, the measure the item making bogie static loading experiment equipment of the present utility model complete bogie all only needs about 45 minutes, the test required time being equivalent to existing static loading experiment platform decreases half in 1.5 hours, substantially increases test efficiency and the effect of each device and structure is played fully.
Please refer to Fig. 2 and Fig. 3, described static test bed 1 is for measuring bogie wheel load and difference, Y-axis distance and difference, catercorner length and difference thereof, adjustment gear suspension rod height and printout total Test result, and it comprises support 11, operation switch board 12, oil pump air pump assembly 13 and test mechanism.Described operation switch board 12, oil pump air pump assembly 13 and test mechanism are fixedly arranged on support 11, and described oil pump air pump assembly 13 and test mechanism are electrically connected with operation switch board 12 respectively, and control its duty by operation switch board 12.
Described oil pump air pump assembly 13 is made up of oil pump and air pump, and the oil sources equipped at outlet port of oil pump is divided into 4 separate hydraulic circuits by a working connection in described oil pump air pump assembly 13, in oil pump air pump assembly 13, the source of the gas equipped at outlet port of air pump is divided into 4 separate inflation gas circuits by a main gas circuit.
Described test mechanism comprises 141, two, two straight line T-slot guide rails and rises guide rail 142, two measurement rails 143, static load portal frame 15, two static load load cylinder 16 and two static load gas ductings.Described two straight line T-slot rail plates 141 are parallel to each other and are longitudinally installed on the relative both sides of support 11 end face, every bar T-slot rail plate is all provided with can along its slide and respectively with operation switch board 12 be electrically connected two wheel load measurement mechanisms 18, to be applicable to two axle truck.Described two rise the inner side that guide rail is arranged on the wheel load measurement mechanism 18 on two straight line T-slot rail plates 141, and parallel with two straight line T-slot rail plates 141.Described two measurement rails 143 are for measuring the ordinate of wheel load measurement mechanism 18 relative to static test bed 1 coordinate system, and it is electrically connected with operation switch board 12 respectively, and is arranged at two respectively and rises between guide rail 142, and parallel with two liters of guide rail 142.Described static load portal frame 15 comprises two columns 151 and crossbeam group 152, two column 151 is vertically installed on support 11, and is positioned at the outside of two straight line T-slot rail plates 141; Crossbeam group 152 is installed between two columns, and is positioned at the middle and upper part of two columns.Described two static load load cylinders 16 are vertical to be arranged on crossbeam, and be connected in series with wherein 2 hydraulic circuits of oil pump in oil pump air pump assembly 13 respectively, and the input end of two static load load cylinders 16 is also connected in series with above-mentioned 2 hydraulic circuits with the hydraulic control valve that operation switch board 12 is electrically connected respectively by one.The axis of described two static load load cylinders 16 is vertical, each static load load cylinder is vertically connected in the crossbeam group 152 of static load portal frame 15 by its cylinder tube flange, and the piston rod in the start cylinder tube of each static load load cylinder stretches out downwards, the end of piston rod is provided with one and makes dynamic head, and this does to be provided with an act pressure sensor in dynamic head, the piston rod of each static load load cylinder transversely can move in crossbeam group, with the bogie test of the empty spring span of satisfied difference.Described two static load gas ductings are arranged in the crossbeam group 152 of static load portal frame 15, its input port respectively by one with the gas path control valve that is electrically connected of operation switch board 12 and air pump in oil pump air pump assembly 13 wherein 2 inflate gas circuit and be communicated with and connect, its delivery outlet is communicated with connects with the dynamic head of doing in two static load load cylinders 16 respectively.
Further, each wheel load measurement mechanism 18 comprises the support roller axle box that pressure transducer, that base plate of weighing, that zigzag tread patterns oil cylinder, that a slide block, be slidably mounted on T-slot rail plate is connected to slide block is fixedly arranged on this slider top is fixedly installed in plate top surface of weighing is fixedly arranged on LOAD CELLS end face, the laser sensor being installed on inside support roller axle box two support rollers, being arranged on two support roller middle and lower parts.The piston rod of described zigzag tread patterns oil cylinder is connected with slide block, vertically moves along T-slot rail plate for making wheel load measurement mechanism 18 in a big way.Pressure transducer in each wheel load measurement mechanism for measure that wheel load measurement mechanism bears pressure.Two support rollers on each support roller axle box are for supporting bogie wheel, and its axis direction is laterally, and the axis of support roller on each wheel load measurement mechanism 18 is all located in the same horizontal plane, and this surface level is the measurement datum of static test bed 1.Described laser sensor is for measuring the horizontal ordinate of wheel load measurement mechanism 18 relative to static test bed 1 coordinate system, also be, be positioned at laser sensor on 2 wheel load measurement mechanisms of track side for indirect inspection distance between backs of wheel flanges, the horizontal ordinate in static test bed 1 coordinate system of minimum point on bogie car wheel tread rolling circle can be obtained after converting.
Further, described two liters of guide rail 142 enter into test mechanism for guiding the wheel rim of 4 of bogie wheels, and the two ends that every bar rises guide rail are respectively equipped with a hoist cylinder, the piston rod of hoist cylinder with rise guide rail and be connected, the cylinder barrel of hoist cylinder is fixed on support 11.
Further, be also provided with multiple gauge adjuster bar 19 between described two measurement rails 143, with the experiment of the bogie of satisfied different gauge, its setting range is 980 ~ 1676mm.Because the structure of gauge adjuster bar 19 of the present utility model is identical with the structure of the gauge adjuster bar of existing static test bed, therefore tiredly to state.
Each measuring sensor in static test bed 1 is all electrically connected with operation switch board 12, and controls its duty by operation switch board 12.
Please refer to Fig. 4, described empty spring systems test bed 2 is for completing the work of bogie air spring air-tight test and differential pressure valve action test, and it comprises sky spring portal frame 21, for the two empty spring load cylinders 22 of simulating car body load-carrying and the two empty spring gas ductings for the air spring air feed for bogie.Described two empty spring load cylinders 22 are vertically fixedly arranged in sky spring portal frame 21, and its input end to be communicated with the oil sources delivery outlet of oil pump air pump assembly 13 respectively by an oil pipe and to connect; Described two empty spring gas ductings are fixedly arranged in sky spring portal frame 21 respectively, and its input port is communicated with the source of the gas delivery outlet of oil pump air pump assembly 13 respectively and connects, and its delivery outlet respectively output terminal of spring load cylinder 22 empty with two is communicated with and connects.
Described empty spring portal frame 21 comprises two column 211 and crossbeam groups 212, and described crossbeam group 212 is arranged between two columns 211, and is located at the middle and upper part of two columns 211.
Described two empty spring load cylinders 22 are respectively by the vertical crossbeam group 212 be connected in sky spring portal frame 21 of its cylinder tube flange, and its piston rod stretches out downwards.The loading pressure head 221 that the piston rod end of each empty spring load cylinder is provided with, this loading pressure head 221 is installed on piston rod end by the loading force sensor that is electrically connected with operation switch board 12.And described two empty spring load cylinders 22 are connected in series with other 2 hydraulic circuits of oil pump in oil pump air pump assembly 13 respectively, its input end is also connected in series with the operation hydraulic control valve that is electrically connected of switch board 12 and above-mentioned 2 hydraulic circuits respectively by one.
Described two empty spring gas ductings are arranged in the crossbeam group 212 of sky spring portal frame 21, its delivery outlet is communicated with the loading pressure head in connected empty spring load cylinder respectively and connects, and its input port is inflated gas circuit and is communicated with respectively by a gas path control valve and air pump in oil pump air pump unit other 2 and connects.The empty spring gas ducting of every bar comprises the hard tube and flexible pipe that are communicated with and connect, hard tube in gas ducting and one of air pump in the oil pump air pump assembly 13 of static test bed are inflated gas circuit and are communicated with and connect, the delivery outlet of its flexible pipe is communicated with the loading pressure head in empty spring load cylinder and connects, thus the source of the gas in air pump is imported in hard tube and flexible pipe, pressurized air is outputted in the air spring of bogie by flexible pipe.
In actual applications, in order to neat appearance and convenient operation and save purchase cost, the structure of the load cylinder on the gantry frame structure of static test bed 1 and empty spring systems test bed 2, portal frame is consistent with the structure of gas ducting.
Below, the course of work of the present utility model is sketched:
Tested bogie enters its Accreditation Waiting Area from the upper station of empty spring systems test bed 2, backing plate placed by empty spring, open the operation switch board 12 of static test bed 1, start oil pump air pump assembly 13, tested bogie is pushed to sky spring systems test bed 2, decline simulation car body weight and the empty spring load cylinder 22 of load-carrying, make it load air intake opening that pressure head 221 aims at empty spring, stirrup strap is set in the front and back wheel of tested bogie, makes tested bogie not produce scroll forward and backward in test process; Because the load applied each bogie can exist difference, then by the loading force of operation switch board 12 needed for tested bogie, suitable load is applied to tested bogie; Be inflated to regulation air pressure to empty spring simultaneously, in each joint of empty spring systems test bed, touch suds as differential pressure valve place is coated with, observe each joint and whether there is leakage.After the static pressure stipulated time, system records the drop-out value of tested bogie hollow spring air pressure automatically, and this value must be within the limits prescribed; Then, close empty spring air intake opening, allow one of them empty spring A of tested bogie exit, because two empty springs of tested bogie are connected with differential pressure valve by pipeline, then its another sky spring B also can produce exhaust simultaneously; Due to the existence of differential pressure valve, the remaining pressure of empty spring B should be greater than atmospheric pressure, and this remaining force value must be within the limits prescribed; Close the exhausr port of the air pump in static test bed 1 oiling pump air pump assembly 13 again, and be two empty spring inflations of tested bogie, after inflation, sky spring B is vented, watch the remaining force value of sky spring A again, this remaining force value also must be within the limits prescribed.When the remaining force value that empty spring does not exist leakage and differential pressure valve meets regulation, empty spring is exhausted, promotes the piston rod that empty spring loads oil hydraulic cylinder, lay down 4 stirrup straps, bogie is pushed to the Accreditation Waiting Area of static test bed 1.
Equal with the wheelbase of tested bogie and under the condition that 4 wheel load measurement mechanisms 18 are symmetrical all around about static load load cylinder 16, what start static test bed 1 rises guide rail 19, makes it concordant with ground at static test bed 1 adjusted wheelbase.By by empty spring systems test bed 2 stand the test and the tested bogie being placed on the Accreditation Waiting Area of static test bed 1 manually pushes in the test mechanism of static test bed 1,4 of tested bogie wheel mounts are made to drop on directly over 4 wheel load measurement mechanisms 18, descend falling-rising guide rail 142 to minimum point, now tested bogie will be seated on 8 support rollers of 4 wheel load measurement mechanisms 18 simultaneously.Then, 8 support rollers are driven to rotate, between the wheel of support roller-bogie Creep Forces and creep moment effect under, bottom due to 4 wheel load measurement mechanisms 18 is all just seated on the T-slot rail plate 141 of band lubricating oil, non-bolted joint, friction force is very little and there is gap, so small adjustment can be made according to the position of bogie 4 wheels in the position of 4 wheel load measurement mechanisms 18.Decline static load load cylinder 15, owing to previously adjusting work, the air intake opening making the empty spring of the tested bogie of dynamic head meeting auto-alignment of each static load load cylinder 16, continue to be loaded on specified load, be inflated to authorised pressure to empty spring simultaneously, again drive 8 wheel holders to rotate, make the position of 4 wheel load measurement mechanisms 18 make adjustment small further according to the position of tested bogie 4 wheels.Stop driving, the horizontal ordinate relative to static test bed 1 of each wheel measured automatically by the laser sensor of wheel load measurement mechanism 18 central authorities, measure track and automatically measure the ordinate of each wheel relative to static test bed 1, according to the range formula of point-to-point transmission, such system calculates wheelbase and the difference thereof of the bogie left and right sides automatically, bogie two diagonal line and difference thereof; The pressure transducer test of wheel load measurement mechanism bottom obtains wheel load and the difference thereof of tested bogie 4 wheels.In general, wheel-base bogie and difference thereof, bogie two diagonal line and difference thereof were measured in preceding processes, as Redundant Control, just did here further to check; For wheel load and the difference thereof of 4 wheels, some bogies can not meet the demands, and now should have cushioning below axle spring, operate, no longer describe here by the method regulation of test program.For motor car bogie, the gear case of bogie and the difference in height of traction electric machine two reference point also will be measured at static test bed 1, method is disposed across at standard water leveling ruler to rise in guide rail 19, take surveyor's staff as benchmark, utilize the difference in height of vernier height gauge prototype gear case and traction electric machine, if this difference does not meet the demands, then should adjust by the carrying out of summation approach to gear case suspension rod height of wanting of technical papers.According to the requirement of test program, static test bed needs to carry out test of many times to tested bogie under specified load effect.When the tested bogie being positioned at static test bed 1 respectively test corner qualified after, the piston rod promoting static load load cylinder 16, to proper height, rises guide rail 142, makes it concordant with ground, the bogie of stand the test is manually pushed to next station.
Repeat above-mentioned work, test next bogie, so order is carried out, and makes sky spring systems test bed 2 and static test bed 1 carry out work according to production task.
In addition, the utility model also has other variant embodiment, such as: the static test bed 1 in the utility model can directly utilize static test bed of the prior art to transform, also be, on the basis of existing static loading experiment platform, the hydraulic circuit of existing static loading experiment platform is transformed with inflation gas circuit, the hydraulic main circuit of existing static test bed is set up the hydraulic circuit of 2 branches, and is concatenated in two empty spring static load oil cylinders respectively by a hydraulic control valve; The main gas circuit of inflation simultaneously in existing static test bed is set up the inflation gas circuit of 2 tunnel branches, and be linked into two empty spring gas ductings respectively by a gas path control valve.
Relative to prior art, the utility model Efficient track bogie of car static test equipment substantially increases experiment work efficiency, can play the function of each device better, reduces space utilization, saves construction investment.
The utility model is not limited to above-mentioned embodiment, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.
Claims (3)
1. an Efficient track bogie of car static test equipment, is characterized in that: comprise
One for measure bogie wheel load and difference thereof, Y-axis apart from and difference, catercorner length and difference thereof, adjustment gear suspension rod height and printout total Test result static test bed; This static test bed comprises operation switch board, oil pump air pump assembly, test mechanism and support; Described operation switch board, oil pump air pump assembly and test mechanism are fixedly arranged on support, and described oil pump air pump assembly and test mechanism are electrically connected with operation switch board respectively, and control its duty by operation switch board;
And one for completing the empty spring systems test bed of bogie air spring air-tight test and differential pressure valve action test; This sky spring system experimental comprises sky spring portal frame, for the two empty spring load cylinders of simulating car body load-carrying and the two empty spring gas ductings for the air spring air feed for bogie; Described two empty spring load cylinders are vertically fixedly arranged in sky spring portal frame, and its input end to be communicated with the oil sources delivery outlet of oil pump air pump assembly respectively by an oil pipe and to connect; Described two empty spring gas ductings are fixedly arranged in sky spring portal frame respectively, and its input port is communicated with the source of the gas delivery outlet of oil pump air pump assembly respectively and connects, and its delivery outlet respectively output terminal of spring load cylinder empty with two is communicated with and connects.
2. Efficient track bogie of car static test equipment according to claim 1, it is characterized in that: the oil sources equipped at outlet port of described oil pump air pump assembly is divided into 4 separate hydraulic circuits by a working connection: wherein 2 hydraulic circuits respectively spring load cylinder empty with two be connected in series, for simulating loading test being turned to built on stilts spring; Other 2 hydraulic circuits are connected in series with test mechanism respectively, for simulating loading test being turned to built on stilts spring; The source of the gas equipped at outlet port of oil pump air pump assembly is divided into 4 separate inflation gas circuits by a main gas circuit, and every 2 inflation gas circuits are connected with the air intake opening of static test bed with the empty spring gas ducting of empty spring systems test bed respectively.
3. Efficient track bogie of car static test equipment according to claim 2, it is characterized in that: the hydraulic control valve that the input end of described two empty spring load cylinders also be electrically connected with operation switch board respectively by is connected in series with wherein 2 hydraulic circuits, the input port of described two empty spring gas ductings respectively by one with operate gas path control valve that switch board is electrically connected with wherein 2 inflate gas circuit and be communicated with and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604180.XU CN204202888U (en) | 2014-10-17 | 2014-10-17 | A kind of Efficient track bogie of car static test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604180.XU CN204202888U (en) | 2014-10-17 | 2014-10-17 | A kind of Efficient track bogie of car static test equipment |
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| CN204202888U true CN204202888U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420604180.XU Withdrawn - After Issue CN204202888U (en) | 2014-10-17 | 2014-10-17 | A kind of Efficient track bogie of car static test equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236936A (en) * | 2014-10-17 | 2014-12-24 | 广东南车轨道交通车辆有限公司 | Static load test device for efficient railway vehicle bogie |
| CN110823595A (en) * | 2019-10-30 | 2020-02-21 | 上海欣巴自动化科技有限公司 | AGV vehicle comprehensive test bed and test method thereof |
-
2014
- 2014-10-17 CN CN201420604180.XU patent/CN204202888U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236936A (en) * | 2014-10-17 | 2014-12-24 | 广东南车轨道交通车辆有限公司 | Static load test device for efficient railway vehicle bogie |
| CN104236936B (en) * | 2014-10-17 | 2017-03-15 | 广东南车轨道交通车辆有限公司 | A kind of Efficient track bogie of car static test equipment |
| CN110823595A (en) * | 2019-10-30 | 2020-02-21 | 上海欣巴自动化科技有限公司 | AGV vehicle comprehensive test bed and test method thereof |
| CN110823595B (en) * | 2019-10-30 | 2021-06-01 | 上海欣巴自动化科技股份有限公司 | AGV vehicle comprehensive test bed and test method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150311 Effective date of abandoning: 20171114 |