CN105235711A

CN105235711A - Permanent magnetic retarder used for railway train marshalling

Info

Publication number: CN105235711A
Application number: CN201510751774.2A
Authority: CN
Inventors: 柳立红
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2016-01-13

Abstract

The invention relates to a permanent magnetic retarder used for railway train marshalling, and belongs to the field of railway train marshalling. The purpose is to solve the problems that as a hydraulic retarder is used in the freight train marshalling process, a train body does work instably to cause a derailing risk, cost is high, and maintenance is difficult. The permanent magnetic retarder comprises a permanent magnet unit, a base, a steel cap, a conductor tubular column and a spring. The permanent magnet unit is of a cylindrical structure, and a structure opened upwards is formed by the permanent magnet unit and the base, the steel cap is fixedly arranged at the upper end of the conductor tubular column, and the upper end and the lower end of the spring are connected to the lower surface of the steel cap and the upper surface of the base respectively. Stretching and retracting motion of the spring drives the steel cap to move up and down and then drives the conductor tubular column to move up and down along an inner cavity of the permanent magnet unit, and a uniform gap d exists between the outer side wall of the conductor tubular column and the inner side wall of the permanent magnet unit.

Description

For the permanent magnetism decelerating of railroad train marshalling

Technical field

The present invention relates to a kind of train deceleration top, belong to railroad train marshalling field.

Background technology

Marshaling yard is the core of railway junction terminal, is the collecting and distributing base of compiling with train solution of wagon flow, often has the title of " train factory ".According to statistics, lorry is once in the full turn round time, and the time of operation and stop AT STATION accounts for 70%.Lorry, from entrucking to unloading, on average will carry out 5 ~ 6 shunting services, and the time wherein stopped in marshalling yard operation accounts for more than 30%.The locomotive number of units of system-wide for shunting, accounts for and all uses 1/5th of locomotive.Marshaling yard efficiency directly has influence on the integral level of China Railway Freight traffic, is one of most crucial link in whole Chinese Railway aspect.

In the process of lorry marshalling, prior art adopts the mode of humping, the rail that lorry is lowered arranges decelerating, and this is a kind of railway vehicle speed reducer not needing extra power, utilizes hydraulic principle realization to the automatic identification of travelled by vehicle speed and control.This decelerating is fixed on the side of track, when through the car speed of decelerating higher than specified value time, decelerating applies braking work and make car retardation to wheel.

In known decelerating structure, usually adopt cone valve and globe valve two kinds of pressure valve forms, they be all be stressed the effect of valve spring prestress and valve seat closely connected.When wheel press oil cylinder top cause hydraulic fluid pressure to be greater than pressure valve spring predetermincd tension time, pressure valve is opened, the pressure oil of sliding oil cylinder epicoele flows to cavity of resorption in a high voltage state, sliding oil cylinder gives certain pressure to wheel simultaneously, complete braking work done, but due to the dynamic hydraulic bad characteristic of ball valve and cone valve, when valve is opened, hydraulic oil flows too fast, in fact ask at a flash and be reduced to zero by maximum flow, cause cylinder upper cavity oil hydraulic fluid pressure can not keep constant, thus unstable to vehicle body braking work done, or moment braking force superelevation may be caused when car speed is higher, derailing is caused to the lighter vehicle of deadweight, jeopardize vehicle safety.And hydraulic pressure decelerating cost is high, maintenance difficult.

Summary of the invention

The present invention seeks in lorry grouping procedures, to adopt hydraulic pressure decelerating in order to solving, there is car body work done instability and cause derailing dangerous, and cost be high, the problem of maintenance difficult, providing a kind of permanent magnetism decelerating for railroad train marshalling.

Permanent magnetism decelerating for railroad train marshalling of the present invention, it comprises permanent magnet unit, base, steel cap, conductor tubing string and spring;

Permanent magnet unit is columnar structured, and permanent magnet unit and base form upward opening structure;

The upper end of conductor tubing string is fixedly installed steel cap;

The lower end of spring is fixed on the upper surface of base, and the hollow lumen of conductor tubing string is passed in the upper end of spring, and is fixed on the lower surface of steel cap;

The expanding-contracting action of spring drives steel cap up-and-down movement, and then drives conductor tubing string along the inner chamber up-and-down movement of permanent magnet unit, and there is uniform pore d between the lateral wall of conductor tubing string and the madial wall of permanent magnet unit.

Advantage of the present invention: the permanent magnetism decelerating for railroad train marshalling of the present invention is installed on inner side or the outside of train track, carry out deceleration to lorry and regulate, cost is low, and structure is simple, and later period maintenance is easy.

Accompanying drawing explanation

Fig. 1 is the structural representation of the permanent magnetism decelerating for railroad train marshalling of the present invention, and this figure represents structure during decelerating normality;

Fig. 2 is the structural representation of permanent magnetism decelerating for railroad train marshalling of the present invention, structure when this figure represents that decelerating is depressed;

Fig. 3 is the structural representation of individual layer permanent-magnetic clamp, and this figure is radial magnetizing;

Fig. 4 is the structural representation of individual layer permanent-magnetic clamp, and this figure is that circumference magnetizes.

Detailed description of the invention

Detailed description of the invention one: present embodiment is described below in conjunction with Fig. 1 to Fig. 4, for the permanent magnetism decelerating of railroad train marshalling described in present embodiment, it comprises permanent magnet unit, base 3, steel cap 4, conductor tubing string 5 and spring 6;

Permanent magnet unit is columnar structured, and permanent magnet unit and base 3 form upward opening structure;

The upper end of conductor tubing string 5 is fixedly installed steel cap 4;

The lower end of spring 6 is fixed on the upper surface of base 3, and the hollow lumen of conductor tubing string 5 is passed in the upper end of spring 6, and is fixed on the lower surface of steel cap 4;

The expanding-contracting action of spring 6 drives steel cap 4 up-and-down movement, and then drives conductor tubing string 5 along the inner chamber up-and-down movement of permanent magnet unit, and there is uniform pore d between the lateral wall of conductor tubing string 5 and the madial wall of permanent magnet unit.

Permanent magnet unit comprises m layer magnet ring 1, arranges insulating barrier 2 between every adjacent two layers magnet ring 1;

Every layer of magnet ring 1 all arranges n block permanent magnet 1-1, often arranges collets 1-2 between adjacent two pieces of permanent magnet 1-1; The magnetizing direction of permanent magnet 1-1 is that radial magnetizing or circumference magnetize; In same layer magnet ring 1, often the magnetizing direction of adjacent two pieces of permanent magnet 1-1 is contrary, and two pieces of permanent magnet 1-1 magnetizing directions of adjacent two layers magnet ring 1 same position are contrary;

M be more than or equal to 2 natural number, n be greater than or etc. 4 even number.

Conductor tubing string 5 adopts copper or aluminium material.

The inner side of the train track in marshalling station or outside evenly arrange the decelerating described in multiple present embodiment, marshaling slides from hump, when not being pressed in this decelerating, its structure as shown in Figure 1, under the effect of spring 6, steel cap 4 is propped up to a certain stroke height, when train is pressed on this decelerating, its structure as shown in Figure 2, steel cap 4 is downward Compress Spring 6 under the effect of the pressure, conductor tubing string 5 moves downward along permanent magnet unit inner chamber, cutting magnetic line, produce the resistance to train, slow down the operation of train, the reluctance force of present embodiment both slow down train gait of march, support is had again to it, after train presses through, under the screen resilience effect of spring 6, former stroke height replied by steel cap 4, wait for being train deceleration next time.

Different according to information such as the weight of train and hump heights, suitable increase or reduce the quantity of magnet ring 1, or the quantity of permanent magnet 1-1 in magnet ring 1.The outside of permanent magnet unit can install housing additional to be fixed and is protected.

Claims

1., for the permanent magnetism decelerating of railroad train marshalling, it is characterized in that, it comprises permanent magnet unit, base (3), steel cap (4), conductor tubing string (5) and spring (6);

Permanent magnet unit is columnar structured, and permanent magnet unit and base (3) form upward opening structure;

The upper end of conductor tubing string (5) is fixedly installed steel cap (4);

The lower end of spring (6) is fixed on the upper surface of base (3), and the hollow lumen of conductor tubing string (5) is passed in the upper end of spring (6), and is fixed on the lower surface of steel cap (4);

The expanding-contracting action of spring (6) drives steel cap (4) up-and-down movement, and then drive conductor tubing string (5) along the inner chamber up-and-down movement of permanent magnet unit, and there is uniform pore d between the lateral wall of conductor tubing string (5) and the madial wall of permanent magnet unit.

2., according to claim 1 for the permanent magnetism decelerating of railroad train marshalling, it is characterized in that, permanent magnet unit comprises m layer magnet ring (1), arranges insulating barrier (2) between every adjacent two layers magnet ring (1);

Every layer of magnet ring (1) all arranges n block permanent magnet (1-1), often arranges collets (1-2) between adjacent two pieces of permanent magnets (1-1); The magnetizing direction of permanent magnet (1-1) is that radial magnetizing or circumference magnetize; In same layer magnet ring (1), often the magnetizing direction of adjacent two pieces of permanent magnets (1-1) is contrary, and two pieces of permanent magnet (1-1) magnetizing directions of adjacent two layers magnet ring (1) same position are contrary;

3. according to claim 1 for the permanent magnetism decelerating of railroad train marshalling, it is characterized in that, conductor tubing string (5) adopts copper or aluminium material.