CN2083124U

CN2083124U - Automatic dimming means of automotive vehicle

Info

Publication number: CN2083124U
Application number: CN 90219380
Authority: CN
Inventors: 贺旭晖
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-12-03
Filing date: 1990-12-03
Publication date: 1991-08-21

Abstract

The utility model belongs to a device for tractor or other automotive vehicles, in particular to a non-stage automatic light adjusting device used for maintaining lamp brightness of tractor or other automotive vehicles without batteries, which work or are driven during the night. The device comprises a driving pulley which is arranged on an engine crankshaft (or a driving shaft), a follower pulley which is arranged on a generator shaft and a triangular belt. The essential technical proposal of the utility model is that a speed sensing mechanism is installed to realize automatic speed changing to make lamps brightness reduce owing to the reduction of the engine rotational speed when the tractors or other automotive vehicles without batteries turn or are driven on uneven roads; therefore, the automatic light adjusting is realized and the safety of persons and automotive vehicles can be ensured.

Description

Automatic dimming means of automotive vehicle

The utility model belongs to vehicle installations such as trac., specifically a kind ofly is used for trac. or drives walking along the street at night or operations such as mound car, automobile, keeps the almost stepless automatic light modulation device of unmodified of lamplight brightness without storage battery.

At present, large tractor or automobile are used for remaining unchanged, and all are storage battery mostly; Compact tractor, then drive generator for electricity generation illumination is provided by driving engine itself, because the driving pulley that is connected with engine crankshaft is constant with the driven pulley diameter that links to each other with electrical generator, therefore, occur in the use: when engine speed raises, generator speed is also high, and the car light that is used for throwing light on is just bright, but when engine speed reduces, generator speed is also low, thereby the car light brightness that is used for throwing light on just weakens, as self-propelled vehiclees such as trac.s when walking along the street at night or the operation, not at ordinary times to headland turn or road, the car light brightness that needs is just big more, but in the existing technology without storage battery, when locomotive when rough road travels or turns, because engine speed reduces, thereby generation deficiency, light does not work, and at this moment, exactly needs stronger lamplight brightness.At present, use the self-propelled vehicle of storage battery,, need often charging, the price height though can keep lamplight brightness.

The purpose of this utility model, be to overcome above-mentioned deficiency, and provide a kind of self-propelled vehicle such as trac. that can make when headland turn or rough road travel, keeping lamplight brightness does not reduce the automatic speed changing control apparatus that obviously reduces because of engine speed, thereby realizes with an automatic light meter.

The utility model is achieved in that it comprises: be installed in driving pulley on the engine crankshaft (or imput shaft), be installed in driven pulley, cone belt on the generator shaft, its technical essential is the installation rate induction mechanism.

Fig. 1 is a structure principle chart of the present utility model, below in conjunction with description of drawings.

Driving pulley and velocity response mechanism are made up of platen 2, flyball pin 3, right angle flyball 4, fixing and mounting bracket 5, attachment bolt 6, fixed cone dish 7, sleeve 8, movable awl dish 9, Advance plate spring 10, locating rack 11, imput shaft (or bent axle) 1.The platen 2 of driving pulley, fixed cone dish 7 and movable awl dish 9 and Advance plate spring 10 are installed on the engine crankshaft (or imput shaft) 1, fixing and mounting bracket 5, locating rack 11, fixed cone dish 7 all are fixedly mounted on the bent axle (or imput shaft) 1, be on the fixing and mounting bracket 5 in same garden week of the garden heart at intersection point, evenly arrange three places right angle flyball 4 and flyball pin 3 with main core line and plane, fixing and mounting bracket place.

Driven pulley is made up of the fixed mount 17, fixed cone dish 13, movable awl dish 14, the Advance plate spring 16 that are installed on the driven shaft (being generator shaft) 15.Fixed cone dish 13, fixed mount 17 are installed and fixed into one with driven shaft 15;

One end of Advance plate spring 10,16 contacts with activity awl dish 9,14 respectively, and the other end contacts with locating rack 11 and fixed mount 17 respectively.

Service condition when Fig. 2 is high engine speeds, Fig. 3 is the situation behind the driving engine rev down, in the work, belt 12 is on conical disc, under the effect of activity awl dish spring 10 and 16 elastic force, dish applies certain thrust to belt, when driving pulley rotates, drags the flower wheel rotation by belt.Movable awl dish can move axially, and with the adjusting swinging radius, thereby has changed transmitting ratio.If the activity awl dish 9 on the imput shaft is in the left side, and the activity awl dish 14 on the driven shaft just must be on the right side, the plane at belt place is square with the axis all the time in the time of could guaranteeing speed change.

During vehicle idling, the working diameter maximum of driving pulley, the working diameter minimum of flower wheel, increase along with engine speed, the flyball of installing on the fixing and mounting bracket 5, because of centrifugal action, to overcome the elastic force of Advance plate spring 10, and move to the edge, simultaneously, another square edge of flyball promotes platen 2, platen 2 promotes sleeve 8, sleeve 8 promotion activity awl dishes 9 outwards shift out along imput shaft 1, because fixed cone dish 7 relative bent axles (or imput shaft) the 1st are changeless, thereby dwindled the contact diameter (being working diameter) of imput shaft and cone belt, but the girth of cone belt is constant, therefore, the corresponding increase of generating wheel (being flower wheel) diameter realizes generating wheel (being flower wheel) deceleration purpose.Otherwise, reduction along with engine speed, right angle flyball 4 is because of the minimizing of centnifugal force, under the effect of Advance plate spring 10 elastic force, activity awl dish is regained, thereby increased the contact diameter of driving wheel and cone belt, because the girth of cone belt is certain, thereby, corresponding the dwindling of diameter of generating wheel (being flower wheel), reached the purpose that generator speed increases, to the greatest extent and, the rotating speed of generator shaft 15 is not raise because of engine speed, also do not reduce because of engine speed, thereby realize making voltage that electrical generator sends not because of the reduction of engine speed reduces, thereby reach the purpose of automatically regulating car light brightness.

Aborning, during with engine idle, secondary speed can satisfy or require voltage near generating is best, can by the driving pulley diameter greater than the driven pulley diameter, and regulate Advance plate spring 10 and 16 rigidity, the weight and the installation dimension of right angle flyball 4 reach.

The utility model has the advantage of by mechanical means provides a kind of automatic regulator generator stabilization of speed in an interval, to keep generator voltage, to realize purpose with an automatic light meter, convenient locomotive without storage battery is guaranteed man-machine safety when the road going of injustice or headland turn.

Claims

A kind of self-propelled vehicle automatic light modulation device of forming by driving pulley (being divided into movable awl dish 9,7 liang of slit bamboo or chopped woods of fixed cone dish), driven pulley (being divided into movable awl dish 14,13 liang of slit bamboo or chopped woods of fixed cone dish), imput shaft (or bent axle) 1, driven shaft 15, cone belt 12, it is characterized in that: fixed cone dish 7, fixing and mounting bracket 5, locating rack 11 are installed and fixed into one with imput shaft (or bent axle) 1, and fixed cone dish 13, fixed mount 17 are installed and fixed into one with driven shaft 15; Platen 2, Advance plate spring 10, cylindrical central sleeve 8 are enclosed within on the imput shaft (or bent axle) 1, be on all fixing and mounting brackets 5 in same garden of the garden heart with the axial line of imput shaft 1 and the intersection point on plane, fixing and mounting bracket 5 place, rectangular distribution three place right angle flyball 4 and flyball pin 3; One end of Advance plate spring 10,16 contacts with activity awl dish 9,14 respectively, and the other end contacts with locating rack 11 and fixed mount 17 respectively.