CN103698121A - Rail car traction pull rod combined load test method and device - Google Patents
Rail car traction pull rod combined load test method and device Download PDFInfo
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- CN103698121A CN103698121A CN201410004478.1A CN201410004478A CN103698121A CN 103698121 A CN103698121 A CN 103698121A CN 201410004478 A CN201410004478 A CN 201410004478A CN 103698121 A CN103698121 A CN 103698121A
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Abstract
The invention discloses a rail car traction pull rod combined load test method and device. The actual stress work condition of a traction pull rod is simulated, a vertical load F1 of a simulation car body is vertically applied, a horizontal load F2 vertical to a rail is horizontally applied, a traction force F3 parallel with the rail is horizontally applied, and the three-direction combined load test on the traction pull rod is realized. The rail car traction pull rod combined load test device comprises the traction pull rod, the simulation car body device and a simulation bogie device; the simulation car body comprises a fixing rack, a vertical oil cylinder, a horizontal oil cylinder and a longitudinal oil cylinder; the simulation bogie device comprises an upper sliding table and a lower sliding table which are overlapped and mounted in a mode of crossing by 90 degrees up and down. The rail car traction pull rod combined load test method and device realize the vertical, horizontal and longitudinal three-direction combined load test on a rail car traction pull rod and related part products, the actual work condition is simulated and the actual service life of the product is reflected.
Description
Technical field
The present invention relates to rail vehicle drawing pull bar experimental technique field.
Background technology
At a high speed, safety, the comfortable trend that has become rail vehicle development, be the requirement that adapts to operation operating mode, the structure of the bogie of car adopts mostly without cartridge, without bolster, without " three non-structures " of shaketable.That the bogie of this form has is simple in structure, quality light, it is little to wear away and manufacture the features such as easy to maintenance, the bogie of " three nothings " structure need to be installed drawing pull bar between car body and bogie, main tractive force and the damping force of transmitting between car body and bogie of this device, instantaneous center of rotation effect while simultaneously also playing in vehicle operating relative revolution between car body and bogie, realize and reduce drawbar height, improve the object of sticking together.The installation form of drawing pull bar is a lot, but mostly trend towards using central single pull rod type draw-gear, because this kind of drawing pull bar is simple in structure, safe and reliable, horizontal, vertical elastic property impact on central suspender softness is little, quality is light, be convenient to manufacture and install, and when the centre of pull line of drawing pull bar device is during near the surface level of axle center, is conducive to alleviate the increase and decrease load of the axle of bogie front and back.
Due to vehicle meeting frequent starting and braking when circuit moves, simultaneously also will be by the curve track of different radii, drawing pull bar need to be born repeatedly reciprocation cycle load, bear because vertical load-carrying causes plunging motion and laterally beat motion, so drawing pull bar plays very important effect in rail vehicle secondary suspension simultaneously.Actual condition for simulation drawing pull bar, it is carried out to three-dimensional combination load test, become the gordian technique difficult problem in this test field, it is blank that this technical field has been filled up in successful implementation of the present invention, for drawing pull bar and associated components product combine load test, provides test battery method and device.
The existing experimental technique scheme of rail vehicle drawing pull bar: drawing pull bar is vertical, horizontal, longitudinal loading is rolled over minute, carries out respectively three tests and replaces combination to load.
The shortcoming that prior art exists is that the system load of rail vehicle drawing pull bar is broken the whole up into parts, cannot force status that is virtually reality like reality, also cannot reflect the true lifetime of product, and carry out respectively that the test period is long, experimentation cost is high, successful implementation of the present invention has solved this problem well.
In prior art, application number is 201310236071.7 disclosure of the invention is a kind ofly applicable to the device that pile foundation level and vertical combination load, this device comprises that top geosynclinal block, force-guided stem, bottom geosynclinal block and weight hook, top geosynclinal block comprises top geosynclinal block top cover and top geosynclinal block base, bottom geosynclinal block comprises bottom geosynclinal block top cover and bottom geosynclinal block base, between top geosynclinal block top cover and top geosynclinal block base and between bottom geosynclinal block top cover and bottom geosynclinal block base, is being combined to form respectively ball-type groove; The two ends of force-guided stem are two steel balls of the same size, and the ball-type groove of the size of steel ball and top geosynclinal block and bottom geosynclinal block matches, and the two ends of described force-guided stem are hinged with top geosynclinal block and bottom geosynclinal block respectively by described steel ball; Weight hook level is fixedly connected on the side of bottom geosynclinal block.Application number a kind of load testing machine that has been 201010168379.9 disclosure of the invention, it comprises: support frame, forward charger and side direction charger; Wherein support frame comprises top frame, base, vertical two side frames; Forward charger between described two side frames, its height-adjustable, the loading end having in its underpart can move up and down and can do along side direction a small amount of mobile; Side direction charger is positioned at the bottom of forward charger, is connected and moving and move up and down with loading end with described loading end.The invention that application number is 201110439294.4 provides a kind of bracket loading test platform, there is support and bearing seat, between bearing seat and support, be hinged with two groups of hydraulic cylinders, two groups of hydraulic cylinders are centrosymmetric with the center of circle of the bearing mounting hole of bearing seat, between support and bearing seat, be provided with two groups of strip elastic components, two groups of strip elastic components be arranged in parallel and with the plane symmetry through bearing mounting hole.Above prior art, all can not realize rail vehicle drawing pull bar is carried out to vertical, horizontal, longitudinal three-dimensional combination load test.
Summary of the invention
Technical matters to be solved by this invention is, a kind of rail vehicle drawing pull bar combination load test method and device are provided, and it can be realized rail vehicle drawing pull bar is carried out to vertical, horizontal, longitudinal three-dimensional combination load test.
Technical scheme proposed by the invention is: described rail vehicle drawing pull bar combination load test method, by the actual loading operating mode of simulation drawing pull bar, the vertical vertical load F1 that drawing pull bar is applied to simulation car body, laterally drawing pull bar is applied the transverse load F2 of the vertical track of simulation bogie, longitudinally drawing pull bar is applied the tractive force F3 of the parallel orbit of simulation bogie, thereby realize the three-dimensional combination load test to drawing pull bar.
Simulation body device and simulation bogie device are set, drawing pull bar is installed between simulation body device and simulation bogie device; In simulation, fixed frame is set in body device, vertical oil cylinder, laterally oil cylinder and longitudinal oil cylinder are set respectively on fixed frame from vertical, vertical and horizontal, guide pillar and guiding crossbeam are installed in one end of vertical oil cylinder; 90 ° of upper slide unit and lower slide units that stack up and down installation of intersection are set in simulation bogie device; Vertical oil cylinder applies the vertical load F1 of simulation car body by guide pillar and guiding crossbeam to drawing pull bar, laterally oil cylinder applies the transverse load F2 of vertical track to drawing pull bar by upper slide unit, and longitudinally oil cylinder applies the tractive force F3 of parallel orbit to drawing pull bar by lower slide unit.
Described rail vehicle drawing pull bar combination load testing machine, for implementing above-mentioned rail vehicle drawing pull bar combination load test method, comprises the simulation bogie device of drawing pull bar, simulation body device and connecting analog body device; Described drawing pull bar is installed between simulation bogie device and simulation body device; Described simulation body device comprises fixed frame and from vertical, vertical and horizontal, is arranged on the vertical oil cylinder on fixed frame, horizontal oil cylinder and longitudinal oil cylinder respectively, guide pillar and guiding crossbeam are installed in one end of vertical oil cylinder; Described simulation bogie device comprises intersecting 90 ° of modes and stacks up and down upper slide unit and the lower slide unit of installation.
Described simulation bogie device comprises slide unit, lower slide unit, lower mount pad, upper mount pad and hinge; Described upper slide unit is consistent with lower slide unit structure, is the layer rolling slide unit that entirely leads, and to intersect 90 ° of modes, stacks up and down installation, for realizing longitudinally with horizontal two way alternate, loads; Described lower mount pad is arranged on above slide unit, and upper mount pad is connected on simulation body device, and the upper/lower terminal of described drawing pull bar is arranged on respectively on upper mount pad and lower mount pad by rubber arthrosis mandrel; A side, the other end that one end of described hinge is arranged on slide unit are fixed on simulation body device.
The described layer rolling slide unit that entirely leads comprises guide seats, lower roller tray, loading plate, upper rolling rod, side roll platform and contiguous block; Described guide seats comprises base plate, two blocks of side plates and fixed head, and side plate is designed to " 7 " shape, is bolted symmetry and is installed on the right and left above base plate, is provided with φ 21 through holes on side plate top, and fixed head is arranged on side plate end face; Described lower roller tray is arranged on above the base plate middle part of guide seats, and lower roller tray is provided with the rolling stand being comprised of φ 30 rollers; Described loading plate is arranged on above lower roller tray; Described upper rolling rod is arranged on the right and left above loading plate, and loading plate upper surface the right and left contacts in rolling friction mode with upper rolling rod; Described side roll platform is arranged on respectively the loading plate left and right sides; Described contiguous block is arranged on loading plate; Described lower roller tray, loading plate, upper rolling rod, side roll platform and contiguous block are all between two blocks of side plates; Described lower mount pad is arranged on above the loading plate of upper slide unit by the contiguous block of upper slide unit, and described hinge is arranged on the loading plate side of slide unit.
Described simulation body device comprises fixed frame, guiding crossbeam, guide pillar, vertical oil cylinder, longitudinal oil cylinder, hinge one, counter-force seat one, horizontal oil cylinder, hinge two and counter-force seat two; Described fixed frame comprises positioning plate, be fixed on two root posts on positioning plate and be connected to the spreader on two root post tops; Guiding cross beam water safety is contained in the middle part of two root posts; Vertical oil cylinder is arranged between spreader and guiding crossbeam with vertical mode, and is connected with upper mount pad by guide pillar, the vertical middle part through guiding crossbeam of described guide pillar; The base plate of the guide seats of described lower slide unit is on the positioning plate of simulation body device and between two root posts; Longitudinally oil cylinder and laterally oil cylinder horizontal direction installation, one end of longitudinal oil cylinder is connected with lower slide unit, the other end is connected with counter-force seat one by hinge one, and described counter-force seat one is arranged on positioning plate; One end of horizontal oil cylinder is connected with upper slide unit, the other end is connected with counter-force seat two by hinge two, and described counter-force seat two is arranged on positioning plate; Vertical oil cylinder, longitudinal oil cylinder and horizontal oil cylinder form one and can to drawing pull bar, apply the power source of three-dimensional load simultaneously.
One of innovation of the present invention is to have designed two layer rollings slide unit that entirely leads to stack up and down installation to intersect 90 degree, presses close to center position simultaneously hinge means is installed in upper slide unit loading plate side, realizes effective transmission of three-dimensional load and alternately loads.
Two of innovation of the present invention is to have designed a kind of modular combination to load fixed frame and three oil cylinders, has reasonably realized three-dimensional combination and has loaded power source layout, the carrying operating mode of real simulation drawing pull bar in rail vehicle.
Rail vehicle drawing pull bar combination load test method proposed by the invention and device real simulation rail vehicle drawing pull bar are installed and operation operating mode, overcome the shortcoming that prior art exists, realized the object of drawing pull bar being carried out to three-dimensional combination load test, solved rail vehicle drawing pull bar combination load test technical barrier, by designing a kind of combination load test method and device, realized and carried out vertical to rail vehicle drawing pull bar and associated components product simultaneously, laterally, longitudinally three-dimensional combines load test, simulation actual condition reflection product true lifetime.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of an embodiment of rail vehicle drawing pull bar combination load testing machine of the present invention;
Fig. 2 is the side-looking structural representation of an embodiment of rail vehicle drawing pull bar combination load testing machine of the present invention;
Fig. 3 is the plan structure schematic diagram of an embodiment of rail vehicle drawing pull bar combination load testing machine of the present invention;
Fig. 4 is the main TV structure schematic diagram of the simulation bogie device in one embodiment of the invention;
Fig. 5 is the side-looking structural representation of the simulation bogie device in one embodiment of the invention;
Fig. 6 is the plan structure schematic diagram of the simulation bogie device in one embodiment of the invention;
Fig. 7 is the main TV structure schematic diagram of the simulation body device in one embodiment of the invention;
Fig. 8 is the side-looking structural representation of the simulation body device in one embodiment of the invention;
Fig. 9 is the plan structure schematic diagram of the simulation body device in one embodiment of the invention.
In figure: 1, simulation bogie device; 2, simulation body device; 3, drawing pull bar; 1-1, guide seats; 1-2, lower roller tray; 1-3, side roll platform; 1-4, upper rolling rod; 1-5, loading plate; 1-6, contiguous block; 1-7, lower mount pad; 1-8, upper mount pad; 1-9, hinge; 2-1, positioning plate; 2-2, fixed frame; 2-3, guiding crossbeam; 2-4, vertical oil cylinder; 2-5, longitudinal oil cylinder; 2-6, hinge one; 2-7, counter-force seat one; 2-8, horizontal oil cylinder; 2-9, hinge two; 2-10, counter-force seat two.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
A rail vehicle drawing pull bar combination load test method, described test method is:
Simulation body device and simulation bogie device are set, drawing pull bar is installed between simulation body device and simulation bogie device; In simulation, fixed frame is set in body device, vertical oil cylinder, laterally oil cylinder and longitudinal oil cylinder are set respectively on fixed frame from vertical, vertical and horizontal, guide pillar and guiding crossbeam are installed in one end of vertical oil cylinder; 90 ° of upper slide unit and lower slide units that stack up and down installation of intersection are set in simulation bogie device; Vertical by guide pillar with guiding crossbeam to drawing pull bar apply simulation car body vertical load F1, laterally by upper slide unit, drawing pull bar is applied the transverse load F2 of vertical track, longitudinally by lower slide unit, drawing pull bar is applied the tractive force F3 of parallel orbit, the common three-dimensional combination load test realizing drawing pull bar.
A kind of rail vehicle drawing pull bar combination load testing machine proposing according to said method, comprise simulation bogie device and simulation body device, described drawing pull bar is installed between simulation bogie device and simulation body device, wherein simulate bogie device by two layer rollings entirely lead slide unit with intersect 90 ° stack up and down installation, realize laterally and loading with longitudinal two way alternate, simulation body device is comprised of fixed frame and three load cylinders, can to drawing pull bar, apply three-dimensional load simultaneously, realize the three-dimensional combination load test to drawing pull bar.
Described simulation bogie device comprises guide seats 1-1, lower roller tray 1-2, side roll platform 1-3, upper rolling rod 1-4, loading plate 1-5, contiguous block 1-6, lower mount pad 1-7, upper mount pad 1-8, hinge 1-9.Wherein, the upper and lower layer rolling slide unit structure that entirely leads is consistent, mainly guide seats 1-1, lower roller tray 1-2, side roll platform 1-3, upper rolling rod 1-4, loading plate 1-5, contiguous block 1-6, hinge 1-9, consists of.Described layer rolling leads the guide seats of slide unit entirely mainly by base plate, side plate and fixed head form, side plate is designed to " 7 " shape, be bolted symmetry and be installed on base plate both sides, in side plate upper design φ 21 through holes, fixed head is arranged on side plate end face, between fixed head and side plate, install equably the excellent 1-4 that rolls, lower roller tray 1-2 is designed to the rolling stand being comprised of φ 30 rollers, be installed in the middle of base, lower roller tray upper surface is installed loading plate 1-5, loading plate upper surface the right and left contacts in rolling friction mode with the excellent 1-4 of upper rolling, simultaneously at loading plate left and right sides difference installation side roller tray 1-3, allow loading plate be installed on, under, left, between right tourelle, can bear to hold upwards simultaneously simultaneously and stretch, to lower compression, skew left, be offset produced simultaneously friction force to the right.Design two consistent layer rollings of structure slide unit that entirely leads, to intersect 90 degree, stack up and down installation, in upper slide unit loading plate side, hinge 1-9 is installed, solve lower slide unit straight line and load the center displacement producing to upper slide unit.Described drawing pull bar upper/lower terminal is installed mount pad, lower mount pad by rubber arthrosis mandrel, and lower mount pad is installed on the loading plate of upper slide unit by the contiguous block of upper slide unit, and upper mount pad is connected with vertical oil cylinder.Vertical oil cylinder applies and carries tensile load (tractive force) and compressive load (damping force) drawing pull bar from vertical direction, laterally oil cylinder from laterally to drawing pull bar apply vehicle and cross curve in time, produces and horizontal beat load, longitudinal oil cylinder is from longitudinally applying vertical deviation to drawing pull bar.Wherein the vertical friction force up and down producing that loads is eliminated by scroll-up/down platform, laterally, longitudinally loading the friction force producing is eliminated by left and right sides roller tray, horizontal and vertical biaxial loadings is stacked and is installed and turning joint is installed is realized pressing close to center of rotation by upper and lower slide unit, when vertical oil cylinder, horizontal oil cylinder and when longitudinally oil cylinder is simultaneously to traction imposed load, the conversion by test method and device is to realize the three-dimensional combination loading fatigue test to drawing pull bar.
Described simulation body device is mainly comprised of fixed frame 2-2, guide pillar, guiding crossbeam 2-3, vertical oil cylinder 2-4, longitudinal oil cylinder 2-5, hinge one 2-6, counter-force seat one 2-7, horizontal oil cylinder 2-8, hinge two 2-9, counter-force seat two 2-10, wherein vertical oil cylinder is installed with vertical mode, longitudinally oil cylinder and horizontal oil cylinder are installed in a horizontal manner, form a power source to drawing pull bar imposed load simultaneously, the carrying operating mode of real simulation drawing pull bar.Fixed frame comprises positioning plate 2-1, be fixed on two root posts on positioning plate and be connected to the spreader on two root post tops; Guiding cross beam water safety is contained in the middle part of two root posts; Vertical oil cylinder is arranged between spreader and guiding crossbeam with vertical mode, and is connected with upper mount pad by guide pillar, the vertical middle part through guiding crossbeam of described guide pillar; The base plate of the guide seats of described lower slide unit is on the positioning plate of simulation body device and between two root posts; One end of longitudinal oil cylinder is connected with lower slide unit, the other end is connected with counter-force seat one by hinge one, and described counter-force seat one is arranged on positioning plate; One end of horizontal oil cylinder is connected with upper slide unit, the other end is connected with counter-force seat two by hinge two, and described counter-force seat two is arranged on positioning plate; Vertical oil cylinder, longitudinal oil cylinder and horizontal oil cylinder form one and can to drawing pull bar, apply the power source of three-dimensional load simultaneously.
Rail vehicle drawing pull bar combination load testing machine of the present invention is a kind of rail vehicle rubber elastic element combination load testing machine.
The concrete steps that adopt above-mentioned rail vehicle drawing pull bar combination load testing machine to carry out rail vehicle drawing pull bar combination load test comprise:
Drawing pull bar is installed between simulation body device and simulation bogie device;
Start vertical oil cylinder, by guide pillar and guiding crossbeam, drawing pull bar is applied to the vertical load F1 of simulation car body; Start horizontal oil cylinder simultaneously, by upper slide unit, drawing pull bar is applied the transverse load F2 of the vertical track of simulation bogie; Start longitudinal oil cylinder simultaneously, by lower slide unit, drawing pull bar is applied the tractive force F3 of the parallel orbit of simulation bogie;
Complete the three-dimensional combination load test to drawing pull bar.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within being all included in protection scope of the present invention.
Claims (6)
1. a rail vehicle drawing pull bar combines load test method, it is characterized in that: by the actual loading operating mode of simulation drawing pull bar, the vertical vertical load F1 that drawing pull bar is applied to simulation car body, laterally drawing pull bar is applied the transverse load F2 of the vertical track of simulation bogie, longitudinally drawing pull bar is applied the tractive force F3 of the parallel orbit of simulation bogie, thereby realize the three-dimensional combination load test to drawing pull bar.
2. rail vehicle drawing pull bar combination load test method according to claim 1, is characterized in that: simulation body device and simulation bogie device are set, drawing pull bar is installed between simulation body device and simulation bogie device; In simulation, fixed frame is set in body device, vertical oil cylinder, laterally oil cylinder and longitudinal oil cylinder are set respectively on fixed frame from vertical, vertical and horizontal, guide pillar and guiding crossbeam are installed in one end of vertical oil cylinder; 90 ° of upper slide unit and lower slide units that stack up and down installation of intersection are set in simulation bogie device; Vertical oil cylinder applies the vertical load F1 of simulation car body by guide pillar and guiding crossbeam to drawing pull bar, laterally oil cylinder applies the transverse load F2 of vertical track to drawing pull bar by upper slide unit, and longitudinally oil cylinder applies the tractive force F3 of parallel orbit to drawing pull bar by lower slide unit.
3. a rail vehicle drawing pull bar combines load testing machine, for implementing the claims the rail vehicle drawing pull bar combination load test method described in 1 or 2, comprise drawing pull bar, it is characterized in that: described rail vehicle drawing pull bar combination load testing machine comprises the simulation bogie device of simulation body device and connecting analog body device; Described drawing pull bar is installed between simulation bogie device and simulation body device; Described simulation body device comprises fixed frame and from vertical, vertical and horizontal, is arranged on the vertical oil cylinder on fixed frame, horizontal oil cylinder and longitudinal oil cylinder respectively, guide pillar and guiding crossbeam are installed in one end of vertical oil cylinder; Described simulation bogie device comprises intersecting 90 ° of modes and stacks up and down upper slide unit and the lower slide unit of installation.
4. rail vehicle drawing pull bar combination load testing machine as claimed in claim 3, is characterized in that: described simulation bogie device comprises slide unit, lower slide unit, lower mount pad, upper mount pad and hinge; Described upper slide unit is consistent with lower slide unit structure, is the layer rolling slide unit that entirely leads, and to intersect 90 ° of modes, stacks up and down installation, for realizing laterally with longitudinal two way alternate, loads; Described lower mount pad is arranged on above slide unit, and upper mount pad is connected on simulation body device, and the upper/lower terminal of described drawing pull bar is arranged on respectively on upper mount pad and lower mount pad by rubber arthrosis mandrel; A side, the other end that one end of described hinge is arranged on slide unit are fixed on simulation body device.
5. rail vehicle drawing pull bar as claimed in claim 4 combines load testing machine, it is characterized in that:
The described layer rolling slide unit that entirely leads comprises guide seats, lower roller tray, loading plate, upper rolling rod, side roll platform and contiguous block;
Described guide seats comprises base plate, two blocks of side plates and fixed head, and side plate is designed to " 7 " shape, is bolted symmetry and is installed on the right and left above base plate, is provided with φ 21 through holes on side plate top, and fixed head is arranged on side plate end face;
Described lower roller tray is arranged on above the base plate middle part of guide seats, and lower roller tray is provided with the rolling stand being comprised of φ 30 rollers; Described loading plate is arranged on above lower roller tray; Described upper rolling rod is arranged on the right and left above loading plate, and loading plate upper surface the right and left contacts in rolling friction mode with upper rolling rod; Described side roll platform is arranged on respectively the loading plate left and right sides; Described contiguous block is arranged on loading plate; Described lower roller tray, loading plate, upper rolling rod, side roll platform and contiguous block are all between two blocks of side plates;
Described lower mount pad is arranged on above the loading plate of upper slide unit by the contiguous block of upper slide unit, and described hinge is arranged on the loading plate side of slide unit.
6. rail vehicle drawing pull bar as claimed in claim 5 combines load testing machine, it is characterized in that:
Described simulation body device comprises fixed frame, guiding crossbeam, guide pillar, vertical oil cylinder, longitudinal oil cylinder, hinge one, counter-force seat one, horizontal oil cylinder, hinge two and counter-force seat two;
Described fixed frame comprises positioning plate, be fixed on two root posts on positioning plate and be connected to the spreader on two root post tops; Guiding cross beam water safety is contained in the middle part of two root posts; Vertical oil cylinder is arranged between spreader and guiding crossbeam with vertical mode, and is connected with upper mount pad by guide pillar, the vertical middle part through guiding crossbeam of described guide pillar;
The base plate of the guide seats of described lower slide unit is on the positioning plate of simulation body device and between two root posts; Longitudinally oil cylinder and laterally oil cylinder horizontal direction installation, one end of longitudinal oil cylinder is connected with lower slide unit, the other end is connected with counter-force seat one by hinge one, and described counter-force seat one is arranged on positioning plate; One end of horizontal oil cylinder is connected with upper slide unit, the other end is connected with counter-force seat two by hinge two, and described counter-force seat two is arranged on positioning plate; Vertical oil cylinder, longitudinal oil cylinder and horizontal oil cylinder form one and can to drawing pull bar, apply the power source of three-dimensional load simultaneously.
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| CN201410004478.1A CN103698121B (en) | 2014-01-06 | 2014-01-06 | A kind of rail vehicle drawing pull bar combination load test method and device |
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| CN104215466B (en) * | 2014-09-22 | 2018-02-06 | 中国铁路总公司 | A kind of test method of train body chassis fatigue strength |
| CN104215466A (en) * | 2014-09-22 | 2014-12-17 | 宋烨 | Train body chassis fatigue strength test bed and testing method |
| CN104389853A (en) * | 2014-11-03 | 2015-03-04 | 中国矿业大学 | Step-by-step hydraulic driving device with adjustable speed and step-by-step hydraulic driving method |
| CN104912873A (en) * | 2015-04-20 | 2015-09-16 | 南京理工大学 | Working condition simulating hydraulic cylinder lateral force loading device |
| CN106769554A (en) * | 2016-11-25 | 2017-05-31 | 中车齐齐哈尔车辆有限公司 | Elastic side bearing fatigue experimental device and method |
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| CN108801622A (en) * | 2018-07-12 | 2018-11-13 | 株洲时代新材料科技股份有限公司 | Air spring three-dimensional Combined Loading fatigue experimental device and method |
| CN113865837A (en) * | 2020-06-12 | 2021-12-31 | 广州汽车集团股份有限公司 | Trailer traction testing device |
| CN113865837B (en) * | 2020-06-12 | 2023-11-03 | 广州汽车集团股份有限公司 | Trailer traction testing device |
| CN111855427A (en) * | 2020-08-19 | 2020-10-30 | 湖南联诚轨道装备有限公司 | Three-way loading test device for rail vehicle hinging device |
| CN112014087A (en) * | 2020-08-26 | 2020-12-01 | 株洲时代新材料科技股份有限公司 | Rubber node three-dimensional fatigue test device based on pull rod |
| CN112284767A (en) * | 2020-11-13 | 2021-01-29 | 重庆长安汽车股份有限公司 | Device and method for testing durability of automobile traction and traction assembly |
| CN113686689A (en) * | 2021-08-16 | 2021-11-23 | 株洲时代新材料科技股份有限公司 | Device and method for carrying out combined loading test on rubber elastic element of railway vehicle |
| CN113686689B (en) * | 2021-08-16 | 2024-04-05 | 株洲时代新材料科技股份有限公司 | Device and method for carrying out combined loading test on rubber elastic element of railway vehicle |
| CN114354411A (en) * | 2021-12-28 | 2022-04-15 | 重庆长安汽车股份有限公司 | Device and method for testing fatigue capability of weld joint of automobile rear tie rod |
| CN114354411B (en) * | 2021-12-28 | 2023-11-21 | 重庆长安汽车股份有限公司 | Device and method for testing weld fatigue capability of rear tie rod of automobile |
| CN114942148A (en) * | 2022-04-11 | 2022-08-26 | 中国第一汽车股份有限公司 | General test bench for motor home traction device and test method |
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Effective date of registration: 20170527 Address after: 412007 Li Yu Industrial Park (Zhuzhou times new material Polytron Technologies Inc), Tianyuan District, Hunan, Zhuzhou Patentee after: Zhuzhou epoch rubber plastic component development Co., Ltd. Address before: Zhuzhou City, Hunan province 412007 Haitian road Tianyuan District No. 18 Patentee before: Zhuzhou Shidai New Material Sci-Tech Co., Ltd. |