43results about How to "Improve flow quality" patented technology

The invention discloses a "receiving-returning" hybrid system on the T-rail ground of an electric locomotive, which includes a base, a receiving rail, a returning rail and a carbon slide; the base is laid between the two rails, and the receiving rail and the returning rail are respectively It is fixed on the left and right sides of the base through steel plates; the carbon slide plate of the flow-receiving part is fixed on the bottom of the vehicle through a shock absorber, and is in sliding contact with the flow-receiving rail; the carbon slide plate of the return flow part is fixed on the bottom of the vehicle through another shock absorber, and Sliding contact with return rail. The invention not only effectively solves the problems of stray current and car body circulation caused by the traditional grounding scheme, but also effectively solves the problem of bonding between the carbon slide plate and the surface of the current receiving rail during the operation of the train, and improves the quality of current receiving; in addition, it can also reduce the Laying costs, saving space, and facilitating later maintenance and management.

The invention relates to a rolling contact pantograph head which belongs to the technical field of stable current collection of a pantograph and catenary system. By the aid of the rolling contact pantograph head, frictional wear among pantograph and catenary is reduced effectively, the performance, of a pantograph, resisting impact from hard points of wires of a catenary is improved, off-line rate of the pantograph and catenary is lowered substantially, and current collection quality is improved. The rolling contact pantograph head comprises a roller, a left end cover, a right end cover, conductive blades, conductive liquid, a metal conductive shaft, a left conductive corner and a right conductive corner, wherein through holes are formed in the left end cover and the right end cover, the metal conductive shaft is arranged in the roller, the left end cover and the right end cover are arranged at the left and the right ends of the roller respectively, two ends of the metal conductive shaft penetrate the through holes of the left end cover and the right end cover respectively and are arranged out of spaces formed between the left and right end covers and the roller, a closed inner cavity is formed by the metal conductive shaft, the left end cover, the right end cover and the roller, the conductive liquid is arranged in the inner cavity, the conductive blades are arranged on the metal conductive shaft in the inner cavity, and the left conductive corner and the right conductive corner are arranged at two ends of the roller and are in seamless joint with the roller.

The invention discloses a pantograph bow balancing mechanism for a small-deflection-angle pantograph. The pantograph bow balancing mechanism comprise a balancing rod system which comprises a first rodhinged to the upper end of a lower arm rod, a second rod hinged to the upper end of an upper arm rod, a fourth rod fixedly connected with the middle of a pantograph bow rotary shaft, and a third rodwith one end being hinged to the free end of the second rod and the other end being hinged to the free end of the fourth rod. The other end of the first rod is hinged to the middle of the second rod,and the upper end of the upper arm rod is provided with a connecting part in an extending mode. The connecting part is hinged to the pantograph bow rotary shaft, and the second rod is in an arc shapeand bends towards the first rod. According to the pantograph bow balancing mechanism, through changing of the relative positions of rotating hinges of all rod pieces of a pantograph balancing system,the deflection angle of a pantograph bow is remarkably decreased, thus the contact area of the pantograph and a rigid catenary is increased, the current collecting quality of the pantograph is effectively improved, and pantograph-catenary damage is reduced.

The invention discloses a method for determining the distance between double pantographs to improve the current quality of double pantographs in high-speed railways. Under the condition of double pantographs running in high-speed railways, based on the law of contact line fluctuation propagation and the mechanism of resonance and vibration elimination, different methods are proposed. Calculation formulas of favorable and unfavorable distances between double bows for flow-receiving mass of double bows under speed. Therefore, in the catenary design process, the parameters of the catenary are designed so that the distance between the pantographs of the existing EMU is close to the favorable distance between the double bows at the design speed, thereby improving the current quality of the double bows of the high-speed rail. The invention makes up for the shortcomings of the traditional design method, and can improve the accuracy and safety of subsequent engineering design.