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1631results about "Axle units" patented technology

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

Axle box device of non-power wheel pair of D-series high-speed train for realizing standard gauge and wide gauge conversion

InactiveCN107757652ALimited Axial Sliding CapabilitySolve the problem that the bogie needs to be replaced due to the inability to adapt to gauge changesAxle unitsAxle-boxesBogieLocking mechanism
The invention provides an axle box device of a non-power wheel pair of a D-series high-speed train for realizing standard gauge and wide gauge conversion. The device is characterized in that a slidingmechanism is mounted on a non-power axle; a non-power wheel and an axle box assembly sleeve the sliding mechanism and are fixed on the sliding mechanism; the sliding mechanism is used for driving thenon-power wheel to slide on the non-power axle when a gauge is changed and used for being matched with the non-power axle to transfer torque so as to drive the non-power wheel to rotate during operating; a locking mechanism is arranged between the sliding mechanism and the axle box assembly and is used for locking and fixing the sliding mechanism before and after the gauge is changed; a bearing base is mounted at the bottom of the axle box assembly and is used for bearing a vehicle when the sliding mechanism slides; and axial positioning mechanisms are arranged at two ends of the non-power axle and are used for realizing axial positioning of the axle. The structure can enable the distance between the inner sides of the wheel pair to adapt to a new gauge value, thereby solving the problemsin the prior art that the distance between the inner sides of the wheel pair is fixed and can not adapt to gauge change and a bogie needs to be replaced.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Method for manufacturing austempered ductile iron (ADI) front axle of heavy truck by sand casting

The invention discloses a method for manufacturing an austempered ductile iron (ADI) front axle of a heavy truck by sand casting. By the method, nickel molybdenum copper austempered ductile iron (ADI) front axle of the heavy truck is produced by a furane resin sand molding process, and the problems that the internal density and the performance reliability of ADI products are difficult to guarantee and the mechanical properties of the ADI products are low are solved. The method has the following steps of: firstly, casting a blank of the nickel molybdenum copper alloyed spheroidal graphite cast iron front axle by the furane resin sand molding process; secondly, performing the surface shot peening strengthening and isothermal quenching heat treatment; and finally machining the front axle parts. By the method, casting is replaced by forging, and the iron is replaced by steel, the comprehensive mechanical properties are obviously higher than those of common spheroidal graphite cast iron and forged steel, the weight of truck parts is reduced, the investment of heavy forging equipment and dies is saved, the cost is reduced, the production cycle is shortened, energy is saved, the emission is reduced, and the economic benefit and the social benefit are obvious.
Owner:DALIAN XINZHONG GRP +1

High ground clearance self-propelled chassis with adjustable wheel tread and wheel tread adjusting method of tractor

The invention relates to a high ground clearance self-propelled chassis with an adjustable wheel tread and a wheel tread adjusting method of a tractor. The chassis comprises a carframe, a travelling system, an engine, a horizontal frame system and a wheel tread adjusting system. The horizontal frame system comprises a left horizontal frame connected with a left travelling wheel, and a right horizontal frame connected with a right travelling wheel. The wheel tread adjusting system comprises a left wheel adjusting device and a right wheel adjusting device. The left adjusting device comprises a first connection rod and a first driving piece, one end the first connection rod is hinged with the carframe, the other end of the first connection rod is hinged with the left horizontal frame, and the first driving piece drives the first connection rod. The left adjusting device comprises a second connection rod and a second driving piece, one end the second connection rod is hinged with the carframe, the other end of the second connection rod is hinged with the right horizontal frame, and the second driving piece drives the second connection rod. When the wheel tread of the tractor is adjusted, the left horizontal frame is driven to move horizontally inwards or outwards through the stretching out and the drawing back of a first stretching piece to carry out the adjustment of the left travelling wheel. And/or the right horizontal frame is driven to move horizontally inwards or outwards through the stretching out and the drawing back of a second stretching piece to carry out the adjustment of the right travelling wheel.
Owner:MODERN AGRI EQUIP +1
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