CN103661464A - Rapid freight car radial bogie - Google Patents
Rapid freight car radial bogie Download PDFInfo
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- CN103661464A CN103661464A CN201310653342.9A CN201310653342A CN103661464A CN 103661464 A CN103661464 A CN 103661464A CN 201310653342 A CN201310653342 A CN 201310653342A CN 103661464 A CN103661464 A CN 103661464A
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Abstract
The invention discloses a rapid freight car radial bogie. The rapid freight car radial bogie comprises an axle assembly, a frame, a swing bolster, a braking device, central suspension devices, a radial device, a side bearing device arranged on the swing bolster and an axle box suspension device, wherein the frame is installed on the axle assembly through the axle box suspension device, the two ends of the swing bolster are fixedly installed in the middle of the frame respectively through the central suspension devices, the frame is composed of two side beams and parallel cross beams connected with the side beams, and bearing platforms where the central suspension devices are installed are arranged outside the middle portions of the side beams. The rapid freight car radial bogie structure obviously reduces wheel-rail wear and wheel-rail noise, reduces wheel-rail acting force, reduces vehicle transverse vibration acceleration and improves vehicle operation lateral stability, straight line stability and curve line negotiating capacity. The unsprung mass of the bogie is reduced, the speed of the bogie is high, vehicle braking performance is improved, wheel-rail wear and wheel-rail noise are small, vehicle operation stability is good, and stability and safety are high.
Description
Technical field
A quick lorry radial steering, relates to railway freight traffic device, and lorry bogie truck, belongs to rolling stock and field of mechanical technique especially fast.
Background technology
At present, the speed of China railways lorry principal mode bogie truck generally reaches 120km/h, but reach the restriction that higher speed has been subject to bogie structure, as large in traditional three piece truck unsprung weight, wheel-rail force strengthens, and wheel-rail wear is serious, suspension gear abrasion are serious, the dynamic performance of bogie truck worsens with speed rising, and Vehicular vibration acceleration/accel increases, and stationarity declines.Vehicle stability and safety simultaneously can not meet the demands.Along with the increase of railway high added value freight traffic volume, the particularly development of fast freight Container Transport, it is higher that speed is developed in urgent hope, and wheel-rail wear and noise are little, the rapid speed freight car bogie that dynamic performance is good.
Summary of the invention
The present invention discloses a kind of quick lorry radial steering according to the deficiencies in the prior art.It is faster that the problem to be solved in the present invention is to provide a kind of speed, and wheel-rail wear and noise are little, the rapid speed freight car bogie that dynamic performance is good.
The present invention is achieved through the following technical solutions:
Quick lorry radial steering, comprise wheel shaft composition, framework, bolster, brake equipment, central mounting device, radial device and be arranged at the side bearing apparatus on bolster, it is characterized in that: also comprise axle box hanging device, described framework is placed in wheel shaft by axle box hanging device and forms above, and described bolster two ends are laid and are fixed on framework middle part by central mounting device respectively.
Described central mounting device consists of two groups of elastic elements, and every group of elastic element adopts two ends rubber and middle part steel spring cascaded structure.
Described axle box hanging device comprises journal box body, the rubber spring of journal box body both sides, the radial device mount pad composition of the vertical damper mount pad on journal box body top and bottom that coordinates connection with the axletree that forms wheel shaft composition.
Described radial device forms by being positioned at bolster lower plane two pipe links arranged in a crossed manner, and two ends of every pipe link and radial device mount pad are hinged by ball pivot.
Described framework is connected with axle box hanging device by rubber spring; The vertical damper mount pad on described journal box body top is connected by Vertical Vibration Reduction device with truck side sill.
The present invention further adopts the framework structure being comprised of with the crossbeam that be arranged, is connected two groups of curb girders in parallel two groups of curb girders, and outside, curb girder middle part has peace to send out the cushion cap of central mounting device.
Above-mentioned brake equipment is disc brake apparatus, comprises four group systems that mate with four wheels respectively, and every group system comprises the brake clamp device that is arranged at crossbeam and the brake disc arrangement that is arranged at axletree.
On the curb girder of above-mentioned framework one side, be provided with empty and load brake equipment.
The two ends, every crossbeam middle part of above-mentioned framework are respectively arranged with longitudinal towing mechanism and the lateral vibration absorbing device connecting with bolster.
The axletree end that above-mentioned wheel shaft forms is provided with anti-skid device.
The invention has the beneficial effects as follows, the quick lorry radial steering of the present invention structure obviously reduces wheel-rail wear and wheel-rail noise, reduces wheel-rail force.Reduce lateral direction of car vibration acceleration, improved vehicle operating lateral stability, straight line stability and curving performance.Bogie truck unsprung weight reduces, and speed is higher, improves vehicle braking performances, wheel-rail wear and noise little, and vehicle smoothness is good, stability and safe.Strong adaptability to circuit, can meet speed 160km/h with interior operation demand.Be applicable to the various Fast Freight-train such as railway movable wall (top) box car, container flat car of China 1435mm standard gauge.
Accompanying drawing explanation
Fig. 1 is steering frame solid structural representation of the present invention;
Fig. 2 is that bogie truck of the present invention is faced structural representation;
Fig. 3 is bogie truck plan structure schematic diagram of the present invention;
Fig. 4 is bogie truck side-looking structural representation of the present invention;
Fig. 5 is that bogie truck of the present invention is looked up structural representation;
Fig. 6 is truck journal box suspension gear schematic diagram of the present invention;
Fig. 7 is bogie truck central mounting device elastic element structure schematic diagram of the present invention;
Fig. 8 is bogie truck radial device schematic diagram of the present invention;
Fig. 9 is bogie truck radial device mounting structure schematic diagram of the present invention;
Figure 10 is truck frame perspective view of the present invention.
In figure, the 1st, wheel shaft forms, and the 2nd, framework, the 3rd, axle box hanging device, the 4th, bolster, the 5th, brake equipment, the 6th, radial device, the 7th, side bearing apparatus, the 8th, empty and load brake equipment, the 9th, central mounting device, the 10th, longitudinal towing mechanism, the 11st, Vertical Vibration Reduction device, the 12nd, lateral vibration absorbing device, the 13rd, anti-skid device, the 14th, journal box body, the 15th, rubber spring, the 16th, vertical damper mount pad, the 17th, radial device mount pad, the 18th, rubber, the 19th, steel spring, the 20th, pipe link, the 21st, ball pivot, the 22nd, curb girder, the 23rd, crossbeam, 24 cushion caps.
The specific embodiment
Below by embodiment, the present invention is specifically described; the present embodiment is only for being further detailed the present invention; but can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art makes according to the content of the invention described above and adjustment also belong to the scope of protection of the invention.
In conjunction with Fig. 1 to Figure 10.
Quick lorry radial steering, comprise wheel shaft composition 1, framework 2, bolster 4, brake equipment 5, central mounting device 9, radial device 6 and be arranged at the side bearing apparatus 7 on bolster 4, also comprise axle box hanging device 3, framework 2 is placed in wheel shaft by axle box hanging device 3 and forms on 1, and described bolster 4 two ends are laid and are fixed on framework 2 middle parts by central mounting device 9 respectively.
Central mounting device 9 consists of two groups of elastic elements, and every group of elastic element adopts two ends rubber 18 and middle part steel spring 19 cascaded structures.
Axle box hanging device 3 comprises and forms wheel shaft and form 1 axletree and coordinates the journal box body 14 connecting, the rubber spring 15 of journal box body 14 both sides, the vertical damper mount pad 16 on journal box body 14 tops and the radial device mount pad of bottom 17 compositions.
Radial device 6 forms by being positioned at bolster 4 lower planes two pipe links 20 arranged in a crossed manner, and two ends of every pipe link 20 and radial device mount pad 17 are hinged by ball pivot 21.
On the curb girder 22 of framework 2 one sides, be provided with empty and load brake equipment 8.
Every crossbeam 23 two ends, middle part are respectively arranged with longitudinal towing mechanism 10 and the lateral vibration absorbing device 12 connecting with bolster 4.
The axletree end of wheel shaft composition 1 is provided with anti-skid device 13.
As shown in Figure 1, Fig. 1 is steering frame solid structural representation of the present invention.Bogie truck of the present invention is placed in wheel shaft by framework 2 by axle box hanging device 3 and forms on 1, and described bolster 4 two ends are laid and are fixed on framework 2 middle parts by central mounting device 9 respectively; The elastic element damping material that axle box hanging device 3 and central mounting device 9 adopt rubber spring 15 materials or rubber 18 and steel spring 19 to form, integral structure is more stable, and effectiveness in vibration suppression is better.
Other unitized constructions of bogie truck in Fig. 1, have also further been represented.Comprise brake equipment 5, radial device 6, side bearing apparatus 7, empty and load brake equipment 8, longitudinal towing mechanism 10, Vertical Vibration Reduction device 11, lateral vibration absorbing device 12 and anti-skid device 13.
Fig. 2 is that bogie truck of the present invention is faced structural representation.In figure, represented framework 2 and axle box hanging device 3, with the structural relation of central mounting device 9.In conjunction with Fig. 1 to Figure 10, wheel shaft of the present invention forms 1 axletree and is placed in the journal box body 14 of axle box hanging device 3, axletree when operation and journal box body 14 normal-running fiies, axle box hanging device 3 connects with framework 2 by the rubber spring 15 of both sides, and two groups of elastic elements of central mounting device 9 are placed in framework 2 middle parts.
Fig. 3 is bogie truck plan structure schematic diagram of the present invention.The plane arrangement structure that has represented bogie truck wheel shaft composition 1 of the present invention, framework 2, bolster 4 in figure, has also further represented the plane arrangement structure that brake equipment 5, side bearing apparatus 7, longitudinal towing mechanism 10, Vertical Vibration Reduction device 11, lateral vibration absorbing device 12 etc. install.
Fig. 4 is bogie truck side-looking structural representation of the present invention.Bogie truck wheel shaft composition 1 of the present invention, framework 2, axle box hanging device 3, brake equipment 5, Vertical Vibration Reduction device 11 side arrangement structures in figure, have been represented.Vertical Vibration Reduction device 11 adopts hydraulic damper, by the mounting means to lateral inclination certain angle, can reduce vertical and horizontal vibration simultaneously, thereby improve the vertical of vehicle and lateral vibration performance, in conjunction with other accompanying drawings, Vertical Vibration Reduction device 11 upper ends and framework 2 curb girders 22 are hinged, the vertical damper mount pad (16) on journal box body (14) top of lower end and axle box hanging device 3 is hinged.
Fig. 5 is that bogie truck of the present invention is looked up structural representation.Fig. 5 has represented bogie truck of the present invention bottom arrangement structure.In conjunction with other accompanying drawings, radial device 6 is hinged with the axle box hanging device 3 that is arranged in four jiaos by two pipe links arranged in a crossed manner 20; Longitudinal towing mechanism 10 and lateral vibration absorbing device 12 arrange respectively two groups, and every crossbeam 23 two ends, middle part arrange respectively longitudinal towing mechanism 10 and the lateral vibration absorbing device 12 connecting with bolster 4.Longitudinal towing mechanism 10 plays the effect of transmitting longitudinal force between bolster and framework, and draw bar is forging structure, and two ends adopt elastic ball to be hinged.Lateral vibration absorbing device 12 adopts hydraulic damper, can reduce lateral vibration, thereby improve the lateral vibration performance of vehicle.
Fig. 6 is truck journal box suspension gear schematic diagram of the present invention.Comprise with the axletree that forms wheel shaft composition 1 and coordinate the journal box body 14 connecting, rubber spring 15, the vertical damper mount pad 16 on journal box body 14 tops and the radial device mount pad 17 of bottom of journal box body 14 both sides.The present invention chooses rubber spring 15 and is arranged on journal box body 14 both sides, and for location, carrying and guiding, journal box body 14 bottom constructions expose outside race, are convenient to axle temperature infrared ray and automatically detect.Radial device mount pad 17 is for the cross support pipe link 20 of bogie truck radial device is installed, and vertical damper mount pad 16 is for installing the parts such as the hydraulic damper of Vertical Vibration Reduction device 11 and anti-skid device 13.Vertical, the horizontal and asynchronous feature of longitudinal rigidity that rubber spring 15 of the present invention has, and there is good non-linear feature.Adopt rubber spring 15 as axle box retainer spring, by the compressive deformation of rubber element, realize the vertical carrying of rubber spring 15.Meanwhile, rubber spring 15 has reasonably longitudinally, lateral stiffness value, to taking turns playing the effect of additional location.Lateral deformation to playing directional tagging, makes bogie truck pass through smoothly curve to wheel.Therefore, adopting rubber spring 15 is axle box pendulum spring as one, can make Axie box support device simplify the structure, more can adapt to the tractive performance requirement of bogie truck, reduce the abrasion between steel parts simultaneously, absorption comes from the high-frequency vibration of track, and the noise while reducing vehicle operating improves bogie truck environmental-protecting performance.
Consideration based on 160km/h rapid speed freight car bogie to safety, between journal box body 14 and bearing, adopt little gap fiting mode to carry out assembly, in journal box body 14 rear ends, anti-skid device 13 journal box rear covers are set, play the effect of axle box backstop, restrictive axes casing 14 and bearing are at axial relative displacement.
Fig. 7 is bogie truck central mounting device elastic element structure schematic diagram of the present invention.Central mounting device 9 of the present invention is comprised of two groups of elastic elements, and as shown in the figure, every group of elastic element adopts two ends rubber 18 and middle part steel spring 19 cascaded structures.
Fig. 8 is bogie truck radial device schematic diagram of the present invention; Fig. 9 is bogie truck radial device mounting structure schematic diagram of the present invention.In conjunction with other accompanying drawings, radial device 6 of the present invention forms by being positioned at bolster 4 lower planes two pipe links 20 arranged in a crossed manner, and two ends of every pipe link 20 and radial device mount pad 17 are hinged by ball pivot 21.Pipe link 20 arranged in a crossed manner forms bogie truck two axles after 1 diagonal axis casing 14 is connected and forms radial direction mechanism, improves the overall performance of bogie truck.
Figure 10 is truck frame perspective view of the present invention.As shown in the figure, framework 2 consists of curb girder 22 and crossbeam 23, and by being welded to form closed box-shaped structure.Curb girder 22 is U-shaped box type construction, by upper cover plate, lower cover and web welding; The present invention is at the cushion cap 24 of curb girder 22 middle part arranged outside central mounting devices 9, cushion cap 24 is placed in curb girder 22 outsides, cushion cap 24 upper backup pads are the steel plate that runs through curb girder 22 middle parts, and lower supporting plate and lower cover are integrated, and longitudinal gusset and horizontal gusset are set between upper backup pad, lower supporting plate; Sleeve is set and runs through crossbeam 23 web middle part perforates, and connect by circumferential weld; By cushion cap face, the upper cover plate plane by the U-shaped recess of curb girder 22 is displaced downwardly on the independent stay bearing plate arranging in the present invention, cushion cap face is lower, central mounting device 9 setting height(from bottom)s increase greatly, may for adopting more the central mounting device 9 of high camber and less rigidity to provide; 24 of cushion caps move to curb girder 22 outsides outward by curb girder 22 line of centerss, have increased the transverse distance of bogie truck central mounting device 9, and car body increases the constraint of shaking the head of bogie truck, is conducive to improve the critical speed of bogie truck; Crossbeam 23 adopts the mode that round steel pipe runs through with two ends curb girder 22 sleeves, segmentation is welded to be connected, and is conducive to suitably reduce the diameter of horizontal stage casing round steel pipe, reduces weight, is conducive to improve welding quality and the reliability of crossbeam 23 and curb girder 22.
In conjunction with Fig. 1 and Fig. 3, the present invention is provided with empty and load brake equipment 8 on the curb girder 22 of framework 2 one sides.Empty and load brake equipment 8 adopts direct weighing valve, pneumatic control mechanism and mechanical force-reducing mechanism, consists of.There is acquisition of signal accuracy, feature that sensitieness is higher.Its effect is that vehicle load is directly changed into pressure air signal and is transferred to adjustment equipment along with weight.
Claims (10)
1. a quick lorry radial steering, comprise that wheel shaft forms (1), framework (2), bolster (4), brake equipment (5), central mounting device (9), radial device (6) and is arranged at the side bearing apparatus (7) on bolster (4), it is characterized in that: also comprise axle box hanging device (3), described framework (2) is placed in wheel shaft by axle box hanging device (3) and forms (1) above, and described bolster (4) two ends are laid and are fixed on framework (2) middle part by central mounting device (9) respectively.
2. quick lorry radial steering according to claim 1, is characterized in that: described central mounting device (9) consists of two groups of elastic elements, and every group of elastic element adopts two ends rubber (18) and middle part steel spring (19) cascaded structure.
3. quick lorry radial steering according to claim 2, is characterized in that: described axle box hanging device (3) comprises with the axletree that forms wheel shaft and form (1) and coordinates the journal box body (14) of connection, rubber spring (15), the vertical damper mount pad (16) on journal box body (14) top and the radial device mount pad (17) of bottom of journal box body (14) both sides.
4. quick lorry radial steering according to claim 3, it is characterized in that: described radial device (6) forms by being positioned at bolster (4) lower plane two pipe links (20) arranged in a crossed manner, two ends of every pipe link (20) and radial device mount pad (17) are hinged by ball pivot (21).
5. quick lorry radial steering according to claim 4, is characterized in that: described framework (2) is connected with axle box hanging device (3) by rubber spring (15); The vertical damper mount pad (16) on described journal box body (14) top is connected by Vertical Vibration Reduction device (11) with framework (2) curb girder (22).
6. according to the quick lorry radial steering described in claim 1 to 5 any one, it is characterized in that: described framework (2) consists of with the crossbeam (23) that be arranged, is connected two groups of curb girders (22) in parallel two groups of curb girders (22), outside, curb girder (22) middle part has peace to send out the cushion cap (24) of central mounting device (9).
7. quick lorry radial steering according to claim 6, it is characterized in that: described brake equipment (5) is disc brake apparatus, comprise four group systems that mate with four wheels respectively, every group system comprises the brake clamp device that is arranged at crossbeam (23) and the brake disc arrangement that is arranged at axletree.
8. quick lorry radial steering according to claim 6, is characterized in that: on the curb girder (22) of described framework (2) one sides, be provided with empty and load brake equipment (8).
9. quick lorry radial steering according to claim 6, is characterized in that: two ends, described every crossbeam (23) middle part are respectively arranged with longitudinal towing mechanism (10) and the lateral vibration absorbing device (12) connecting with bolster (4).
10. quick lorry radial steering according to claim 6, is characterized in that: the axletree end that described wheel shaft forms (1) is provided with anti-skid device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653342.9A CN103661464A (en) | 2013-12-05 | 2013-12-05 | Rapid freight car radial bogie |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653342.9A CN103661464A (en) | 2013-12-05 | 2013-12-05 | Rapid freight car radial bogie |
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| CN103661464A true CN103661464A (en) | 2014-03-26 |
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| CN201310653342.9A Pending CN103661464A (en) | 2013-12-05 | 2013-12-05 | Rapid freight car radial bogie |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329251A (en) * | 2015-12-10 | 2016-02-17 | 西南交通大学 | Radial bogie |
| CN105818829A (en) * | 2016-06-08 | 2016-08-03 | 江苏瑞铁轨道装备股份有限公司 | Fast railway wagon bogie |
| CN106809233A (en) * | 2017-01-23 | 2017-06-09 | 中车长江车辆有限公司 | Railway red ball bogie |
| CN106994981A (en) * | 2017-05-19 | 2017-08-01 | 江苏瑞铁轨道装备股份有限公司 | A kind of central mounting device and railway goods train bogie |
| CN108367765A (en) * | 2015-12-25 | 2018-08-03 | 川崎重工业株式会社 | Railcar bogie |
| CN108705907A (en) * | 2018-07-10 | 2018-10-26 | 徐工集团工程机械有限公司 | A kind of dual-purpose power truck of rail |
| CN109515465A (en) * | 2018-11-08 | 2019-03-26 | 西南交通大学 | A kind of built-in bogie of high-speed railway lorry axle box |
| CN109878545A (en) * | 2019-03-22 | 2019-06-14 | 通号轨道车辆有限公司 | A kind of tramcar and bogie |
| CN110979375A (en) * | 2019-12-20 | 2020-04-10 | 中车长春轨道客车股份有限公司 | Axle box built-in side beam based on novel series of spring seats |
| WO2021114680A1 (en) * | 2019-12-13 | 2021-06-17 | 中车眉山车辆有限公司 | Lower-mounted railway freight car bogie wheelset radial device |
| WO2021120622A1 (en) * | 2019-12-20 | 2021-06-24 | 中车眉山车辆有限公司 | High-speed railway wagon bogie capable of independent power generation |
| CN113184004A (en) * | 2021-05-18 | 2021-07-30 | 中车唐山机车车辆有限公司 | Sand-proof axle box bogie |
| WO2022027855A1 (en) * | 2020-08-04 | 2022-02-10 | 中车山东机车车辆有限公司 | Inside-suspension direct-drive radial bogie, and truck |
| CN114152451A (en) * | 2021-11-10 | 2022-03-08 | 柳州铁道职业技术学院 | Steering power detection device and method for rapid truck bogie |
| RU214774U1 (en) * | 2022-08-05 | 2022-11-14 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | TWO-AXLE TROLLEY FOR HIGH-SPEED FREIGHT CAR |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329251B (en) * | 2015-12-10 | 2017-09-08 | 西南交通大学 | A kind of radial steering |
| CN105329251A (en) * | 2015-12-10 | 2016-02-17 | 西南交通大学 | Radial bogie |
| CN108367765A (en) * | 2015-12-25 | 2018-08-03 | 川崎重工业株式会社 | Railcar bogie |
| CN105818829A (en) * | 2016-06-08 | 2016-08-03 | 江苏瑞铁轨道装备股份有限公司 | Fast railway wagon bogie |
| CN106809233A (en) * | 2017-01-23 | 2017-06-09 | 中车长江车辆有限公司 | Railway red ball bogie |
| CN106994981B (en) * | 2017-05-19 | 2023-09-01 | 江苏瑞铁轨道装备股份有限公司 | Central suspension device and railway wagon bogie |
| CN106994981A (en) * | 2017-05-19 | 2017-08-01 | 江苏瑞铁轨道装备股份有限公司 | A kind of central mounting device and railway goods train bogie |
| CN108705907A (en) * | 2018-07-10 | 2018-10-26 | 徐工集团工程机械有限公司 | A kind of dual-purpose power truck of rail |
| CN109515465A (en) * | 2018-11-08 | 2019-03-26 | 西南交通大学 | A kind of built-in bogie of high-speed railway lorry axle box |
| CN109878545A (en) * | 2019-03-22 | 2019-06-14 | 通号轨道车辆有限公司 | A kind of tramcar and bogie |
| WO2021114680A1 (en) * | 2019-12-13 | 2021-06-17 | 中车眉山车辆有限公司 | Lower-mounted railway freight car bogie wheelset radial device |
| CN110979375B (en) * | 2019-12-20 | 2021-03-16 | 中车长春轨道客车股份有限公司 | Axle box built-in side beam based on novel series of spring seats |
| WO2021120622A1 (en) * | 2019-12-20 | 2021-06-24 | 中车眉山车辆有限公司 | High-speed railway wagon bogie capable of independent power generation |
| CN110979375A (en) * | 2019-12-20 | 2020-04-10 | 中车长春轨道客车股份有限公司 | Axle box built-in side beam based on novel series of spring seats |
| WO2022027855A1 (en) * | 2020-08-04 | 2022-02-10 | 中车山东机车车辆有限公司 | Inside-suspension direct-drive radial bogie, and truck |
| CN113184004A (en) * | 2021-05-18 | 2021-07-30 | 中车唐山机车车辆有限公司 | Sand-proof axle box bogie |
| CN114152451A (en) * | 2021-11-10 | 2022-03-08 | 柳州铁道职业技术学院 | Steering power detection device and method for rapid truck bogie |
| RU214774U1 (en) * | 2022-08-05 | 2022-11-14 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | TWO-AXLE TROLLEY FOR HIGH-SPEED FREIGHT CAR |
| RU214974U1 (en) * | 2022-11-03 | 2022-11-23 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | TWO-AXLE TROLLEY FOR HIGH-SPEED FREIGHT CAR |
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Application publication date: 20140326 |