CN2087157U

CN2087157U - Automatic coupler for electric car

Info

Publication number: CN2087157U
Application number: CN 91201595
Authority: CN
Inventors: 辛少光; 赵淑珍; 师恒茂; 杨伟
Original assignee: TAIYUAN AUTOMOBILE ACCESSORIES FACTORY
Current assignee: TAIYUAN AUTOMOBILE ACCESSORIES FACTORY
Priority date: 1991-01-26
Filing date: 1991-01-26
Publication date: 1991-10-23

Abstract

The utility model discloses an automatic hook for electric locomotive, comprising a hook body, a main pin, a drawing hook, a wresting spring, an electrical magnet, a pull ring, a sliding block and an electrical magnet control circuit and trapezoidal bosses on the two sides of the drawing hook on the lower part of the hook body which are additionally arranged. On the basis of existing technology, the utility model is additionally provided with the electrical magnet control circuit, and the utility model solves the problem of easy unhooking, avoids economic loss caused by the damage of the electrical magnet and assures user's safe production. The utility model has the advantages of safe production, convenient installation, less power consumption, high durability, strong hook intensity, collision resistance, convenient installation and maintenance, low electricity consumption, durability, etc.

Description

Automatic coupler for electric car

The utility model is a kind of automatic hitch of electric locomotive.

Prior motor car automatic hitch also is made up of coupler body, stub, drag hook, draw ring, torsion spring, electromagnet, slide block etc. usually, but because electromagnet is directly by power drives, there is not control circuit, therefore because fuse blows or start button switch are instantaneous, magnet coil produces high counter potential, and magnet coil is damaged easily.Simultaneously, when electric locomotive moved on rugged track, drag hook and draw ring broke off relations easily, brought unsafe factor to operation.

The purpose of this utility model is for providing a kind of electric locomotive automatic hitch that has control circuit for electromagnet and anti-locking hook structure.

The utility model is to adopt following measure to realize: this electric locomotive automatic hitch, comprise and be used for the coupler body that fixes with electric locomotive, be fixed on stub on the coupler body, be fixed on drag hook on the stub and torsion spring, electromagnet, drag hook played the slide block of position-limiting action and is fixed on draw ring on the mine car, this automatic hitch also includes the control circuit of electromagnet, and this control circuit comprises by NE555 clock circuit, capacitor C _1-4, resistance R ₁-R ₃, relay J and stabilivolt D ₁The time delay circuit, the push switch AN that form are by R ₄, R ₅, D ₃, D ₄The protective circuit of forming; For preventing electric locomotive drag hook and draw ring unhook in operational process, have additional trapezoid boss in drag hook both sides, coupler body bottom, drag hook is matched with this trapezoid boss under closure state, and the gap of drag hook mouth and bottom guarantees the reliability of transportation less than the diameter of draw ring.

The utility model has been set up the control and the protective circuit of electromagnet on the basis of existing technology, and has solved easy unhook problem, has avoided electromagnet to damage the economic loss that causes, and has guaranteed user's safety in production.The utility model also has hook intensity big, anti-collision, convenient for installation and maintenance, little power consumption, advantage such as durable in use.

Description of drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is the control circuit structural representation of electromagnet;

In conjunction with the accompanying drawings the utility model is further described as follows: this electric locomotive automatic hitch, comprise the coupler body 1 that is used for fixing, be fixed on stub 2 on the coupler body, be fixed on drag hook 3 and torsion spring 4 on the stub, be fixed on electromagnet 5 on the coupler body, drag hook is played the slide block 6 of position-limiting action and is fixed on draw ring 7 on the mine car with electric locomotive, set up the control circuit of electromagnet, this control circuit comprises by NE555 clock circuit, capacitor C _1-4, resistance R ₁-R ₃, relay J and diode D ₁The time delay circuit of forming, button switch AN, by R ₄, R ₅, D ₃, D ₄The protective circuit of forming has additional trapezoid boss 8 in drag hook both sides, coupler body bottom simultaneously.The utility model has also been set up by XD and resistance R ₄The demonstration branch road of forming.During work, start locomotive, draw ring is bumped strain at hook, press start button AN, energized moment, because capacitor C ₄On voltage can not suddenly change, i.e. Vc4=0, mouth 3 pin of NE555 clock circuit are high level, relay J gets, its open contact closure, magnet coil gets electric, and the traction slide block rises, drag hook is Unscrew under the torsion spring twisting force, finishes the decoupling device action, and power supply passes through R simultaneously ₁, R ₃To C ₄Charging, after a period of time, the monostable circuit upset, 3 pin output low levels, relay discharges, C ₄By relay normally closed contact discharge reduction, for the action of following one-period is prepared, when locomotive articulates, behind the startup locomotive, slowly travel, collision is articulated the mine car group, draw ring bump drag hook, drag hook rotates around stub, and slide block falls to blocking drag hook, finishes articulating action.Produce high counter potential in fuse blows and the instantaneous coil of start button open and close two ends, can pass through R ₄, R ₅, D ₃, D ₄The damage of magnet coil is avoided in the protective circuit discharge that constitutes.

Claims

1, a kind of electric locomotive automatic hitch, comprise the coupler body that is used for fixing, be fixed on stub on the coupler body, be fixed on drag hook on the stub and torsion spring, electromagnet, drag hook played the slide block of position-limiting action and is fixed on draw ring on the mine car with electric locomotive, it is characterized by: this automatic hitch also includes the control circuit of electromagnet, this control circuit comprises the clock circuit by NE555, capacitor C _1-4, resistance R ₁-R ₃, relay J and stabilivolt D ₁The time delay circuit, the push switch AN that form are by R ₄, R ₅, D ₃, D ₄The protective circuit of forming.

2, electric locomotive automatic hitch as claimed in claim 1 is characterized by: have additional trapezoid boss in drag hook both sides, coupler body bottom.