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3479 results about "Bogie" patented technology

A bogie (/ˈboʊɡi/ BOH-ghee) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly detachable (as the dolly in a road train or in railway bogie exchange); it may contain a suspension within it (as most rail and trucking bogies do), or be solid and in turn be suspended (as most bogies of tracked vehicles are); it may be mounted on a swivel, as traditionally on a railway carriage or locomotive, additionally jointed and sprung (as in the landing gear of an airliner), or held in place by other means (centreless bogies).

Power bogie with independent wheels for 100 percent low-floor light rail vehicles

InactiveCN101979266AAchieving 100% low floor requirementsReasonable structureBogiesBogieMotor drive
The invention discloses a power bogie with independent wheels for 100 percent low-floor light rail vehicles. The power bogie with the independent wheels comprises a framework, an axle mechanism, primary springs, secondary springs, secondary vertical and transverse dampers, a double-pull rod traction mechanism, the longitudinal driving mechanism of an elastically frame-suspended motor and a hydraulic brake unit, wherein the side beams of the framework are cantilevers which protrude outward; two short shafts are supported by bearing units and connected with elastic wheels respectively; an axle consists of the two short shafts; two wheels on the same side of the bogie are fixed on a motor-driven shaft; a motor is coupled with two gear boxes; a brake system is integrated with a traction motor; the four secondary vertical dampers are arranged at the four corners of the framework; the secondary transverse dampers are arranged at the two ends of the framework; and a parallel double-pull rod traction system is arranged on the inner side of the framework. The requirement of 100 percent low floor on vehicle bodies is really realized by the high-strength welded framework, the independent wheel axle mechanism, the primary springs and the secondary springs which are rationally structured, the optimal secondary vertical and transverse dampers, the parallel double-pull rod traction device with internal traction, the longitudinal drive of the elastically frame-suspended motor, and the hydraulic brake unit which is integrated with the traction motor.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Method for testing electric secondary AC loop

The invention relates to an electric secondary AC circuit detection method which comprises the following steps: before a power plant machine set is started, a low-voltage short-circuit point or a short-circuit bogie is input; three-phase 380 V voltage is added at the high-voltage side of a booster station to form a circuit by means of the impedance of a transformer and a generator; current amplitude and phase are measured through a current detecting apparatus to check polarity and transformation ratio in advance; all current protective directions such as generator differential motion are measured. When a neutral point is not connected, a short-circuit point is made at a high plant transformer low-voltage side, and the three-phase 380 V voltage is added at the neutral point of the generator, thereby realizing overall checkup of a generator AC circuit; then, the three-phase 380 V voltage is converted into one-phase voltage or two-phase voltage to carry out overall checkup of a zero sequence circuit. The detection method can check all CT and PT circuits of a generation-transformer group before power transmission; moreover, all protection directions of the generation-transformer group are checked in advance, thereby saving time and fuel oil along with economical efficiency, environmental protection and safety. The electric secondary AC circuit detection method can check secondary circuits such as the transformer and the bus differential protection of a transformer substation.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1

Railway vehicle body chassis structure

ActiveCN103832446ASimple structureSolve the maintenance space problemUnderframesBogieControl theory
The invention discloses a railway vehicle body chassis structure. The railway vehicle body chassis structure soles the problems that the giant torque force is caused due to the fact that a front-arrangement type vehicle hook mounting hole is formed in the side face of a vertical plate of a traction beam, and no operation space exists for mounting a steering frame traction base. The railway vehicle body chassis structure comprises two chassis edge beams, a chassis end beam and a sleeper beam arranged between the two chassis edge beams, a traction beam, a vehicle hook mounting sectional material and a traction guide beam are arranged between the sleeper beam and the chassis end beam, the traction beam is fixed between the sleeper beam and the vehicle hook mounting sectional material, and the traction guide beam is fixed between the vehicle hook mounting sectional material and the chassis end beam. Traction wing plates are fixedly arranged on the two sides of the vehicle hook mounting sectional material, the traction wing plates are fixedly connected with the chassis edge beams on the corresponding sides, and a jumper box is arranged between the traction wing plates and the traction guide beam. The problems are completely solved by optimizing the structures of vehicle hook mounting sectional material, the traction beam and other components, and the high-intensity performance that a vehicle body can bear 1000 kN of compression loads is kept.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO

Parameter determining test bed for gantry framework type rail vehicle bogie

The invention relates to a parameter determining test bed for a gantry framework type rail vehicle bogie. The test bed mainly consists of a counter-force type gantry mechanical framework, a six-degree-of-freedom loading mechanism assembly, a bogie transfer bridge device and a bogie positioning and clamping mechanism assembly, wherein the counter-force type gantry mechanical framework provides counter-force support to a test bed loading mechanism and a positioning and clamping mechanism; the six-degree-of-freedom loading mechanism assembly is used for the vertical, lateral and longitudinal loading of the tested bogie; the bogie transfer bridge device is used for smoothly and flexibly transferring the tested bogie to a test bed loading platform; and the bogie positioning and clamping mechanism assembly is used for the vertical, longitudinal and lateral positioning and fixing of a second tested bogie frame. According to the test bed, the tests of parameters, such as the vertical, longitudinal and lateral rigidity of the first bogie and the second bogie, and the bogie torsion rigidity, can be realized, the rigidity coefficient and the flexibility coefficient of each part of the bogie can be automatically calculated by software, and the automation and the efficiency when the bogie parameter is measured are improved.
Owner:JILIN UNIV +1

Variable gauge bogie

The invention belongs to the technical field of bogie systems, and particularly relates to a variable gauge bogie. The variable gauge bogie comprises an axle assembly, a sliding key assembly and an axle box assembly. The axle assembly comprises an axle and a bearing and wheel integrated mounting seat. The sliding key assembly comprises a sliding part. The axle box assembly comprises an axle box and a bearing. The position from a wheel seat to the end part of the axle is provided with a moving pair connecting part. The bearing and wheel integrated mounting seat comprises a bearing mounting seat and a wheel mounting seat which are mutually connected and further comprises a moving pair junction part. The moving pair junction part and the moving pair connecting part form an axial moving pair. The sliding part is of a cylindrical body. The outer side wall of the cylindrical body is in axial slidable connection with the axle box. The inner side wall of the cylindrical body is in axial fixed connection with the bearing mounting seat through the bearing. The wheel axial direction of the variable gauge bogie is adjustable to be adapted to different gauges, railway transportation of ''Silk Road Economic Belt'' is developed, and the problem that railway gauges are not uniform must be solved, therefore, it is very important and far-reaching to carry out design of the variable gauge bogie.
Owner:SOUTHWEST JIAOTONG UNIV +1

Single axle bogie transmission of straddle-type single rail vehicle

The invention discloses a single axle bogie transmission of a straddle-type single rail vehicle. The transmission is arranged on a bogie frame and used for realizing that walking wheels are driven to walk through the torque of a motor. The transmission comprises the motor, a brake disc, a walking wheel assembly and a reducer. The motor and the brake disc are transversely arranged on the fixed end of an axle, and the walking wheel assembly and the wheel reducer are transversely arranged on the cantilever end of the axle; a walking wheel support shaft is unidirectionally fixed by adopting double fulcrums, one end of the support shaft is fixed on the bogie frame, the other end of the support shaft is suspended, the fixed end of the support shaft is supported by a self-aligning roller bearing, and the cantilever end of the support shaft is supported by a group of tapered roller bearings installed in an axle box in the reverse direction. Longitudinal symmetric planes of the walking wheels are coincided with longitudinal symmetric planes of track beams. The single axle bogie transmission of the straddle-type single rail vehicle has the technical beneficial effects that the bogie is compact in structure, tires are disassembled and assembled easily, and the curve passing performance of the cantilever beam straddle-type single rail vehicle is met.
Owner:SOUTHWEST JIAOTONG UNIV

Method for detecting fault of train suspension system on basis of robust observer

The invention relates to a method for detecting a fault of a train suspension system on the basis of a robust observer. The method comprises the following steps of: a, carrying out modeling on the train suspension system and designing the corresponding fault detection robust observer; b, utilizing an acceleration sensor and a gyroscope to respectively acquire acceleration signals and angular speed signals of a vehicle body and front and rear bogies when a train operates; c, carrying out treatment of anti-aliasing filtering, high-pass filtering, quadratic integration and the like on the acceleration signals and only carrying out anti-aliasing filtering and high-pass filtering on the angular speed signals to obtain a system output; d, utilizing the fault detection robust observer to carry out processing on the system output to obtain a residual output; e, according to a residual sequence, applying a MCUSUM (Multivariable Cumulative Sum) method to calculate a fault detection index; and f, by a fault diagnosis expert system, generating a fault alarm threshold value in real time and judging whether to give an alarm. According to the detection method, when the suspension system has a small fault, the fault can be detected in real time, the alarm is given and the possibility of false alarm and failure in report of a fault detection system can also be reduced.
Owner:BEIJING JIAOTONG UNIV

Transformer station rail-mounted intelligent patrol robot

ActiveCN102736624ARealize continuous fixed-point observationAchieve positioningPosition/course control in two dimensionsBogieElectricity
The invention belongs to the special robot field, and concretely provides a transformer station rail-mounted intelligent patrol robot including steering frames, a chassis, a current collector, travel switches, a holder, a control system, a slide wire and positioning blocks. The two steering frames are mutually independent with a same structure, and respectively ride on a track for running. One side of the track is provided with the slide wire which is connected with an external power supply, and the other side of the track is provided with a plurality of positioning blocks. The chassis is connected with the two steering frames respectively. An upper surface of the chassis is respectively provided with the holder and the control system. A side of one steering frame is provided with the current collector which slides on the slide wire and supplies power for the robot. Two steering frames at the other side relatively are respectively provided with a travel switch, and moving tracks of the travel switches are corresponding to mounting positions of the positioning blocks. The current collector and the travel switches are respectively electrically connected with the control system. According to the invention, the control of accurate walking, positioning and the like of the robot on a planned track path can be realized, and continuous fixed-point observation of a plurality of targets can be realized.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Straddle type monorail operation vehicle with structure comprising two pairs of wheels

The invention relates to an urban rail operation vehicle and in particular relates to a straddle type monorail operation vehicle with a structure comprising two pairs of wheels. The straddle type monorail operation vehicle comprises a carriage, a steering frame, an engine, a transfer case and a walking pump, wherein the steering frame is connected with an underframe of the carriage through a central pin dragging device; the steering frame comprises a framework, a secondary suspension device and a dragging device; the overall framework is of an II-shaped full-steel installed and welded plate type box structure and comprises a side beam, end beams connected to two ends of the upper part of the side beam and two vertical beams which are connected between the end beams; a motor bracket is fixed between the upper part of the side beam and the corresponding vertical beam; two independently-driven walking wheel assemblies are mounted on two motor brackets; four guide wheel assemblies are mounted on two sides of the middle part of the side beam; two stabilizing wheel assemblies are mounted on two sides of the lower part; the secondary suspension device adopts a secondary steel coil spring assembly. The straddle type monorail operation vehicle can reasonably meet the circuit requirements of monorail PC beams and is high in safety coefficient, excellent in dragging performance, simple and compact in structure, easy to maintain, stable in running and excellent in brake performance.
Owner:太原中车时代轨道工程机械有限公司
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