CN201588889U - Multi-air gap permanent magnetic automobile clutch - Google Patents

Abstract

The utility model provides a multi-air gap permanent magnetic automobile clutch which consists of a driving shaft, a driving disc, a driven shaft, a driven disc, a magnetic pole, a magnetism-guiding disc and a spring. The driving disc is in the shape of a disc, is fixed on a flywheel, and is attached with the magnetic pole; a magnetism-insulating ring is also fixed on the flywheel, and is provided with multi-rows of driving teeth which correspond to the magnetic pole; and the driven disc is in the shape of the disc, and the end face of the driven disc is provided with teeth. The magnetism-guiding disc is in the shape of a cylinder and can enter or withdraw from the gap between the driving disc and the driven disc. The working principle is as flows: when the clutch is 'closed', the power of the flywheel is transmitted to the driven disc through the magnetic force among the teeth of the driven disc, the magnetic pole and the driving teeth; and when the clutch is 'opened', the magnetism-guiding disc enters the gap between the magnetic pole and the driven disc to form a closed magnetic path with the driving disc and the magnetic pole, so that the power of the flywheel can not be transmitted to the driven disc, equivalently, the clutch is relatively 'separated'.

Description

Many air gap permanent magnets automobile clutch

Technical field

The utility model relates to the clutch in a kind of car transmissions.

Background technique

Clutch all is housed between car combustion engine and the speed changer, generally adopts friction type; But this clutch wear and tear in use than very fast, the life-span is shorter.For this reason, people have designed magnetic gear; But because the cost height of magnet makes the manufacture cost of magnetic gear be higher than friction type.

The model utility content

The purpose of this utility model provides a kind of many air gap permanent magnets automobile clutch; The magnetic pole of this clutch is contained on the driving disc, is shaped on the tooth that number row magnetic conduction is used on the driven disc; On magnetic circuit, constitute a plurality of air gaps.Significantly reduce thereby make, make the manufacture cost of magnetic gear be lower than friction type at the condition lower magnet consumption that transmits identical moment.And control from, the magnetic conductive disk that share during in work and driving disc rotate synchronously; Can not produce eddy current, make magnet heat up little, magnetic property stable.

Structure of the present utility model is made up of driving shaft, driving disc, magnetic pole, driven shaft, driven disc, magnetic conductive disk, spring, shift fork, flywheel, clutch housing etc.Driving disc is that disc is fixed on the flywheel, is bonded with on it by some magnetic pole; Be fixed with magnetism resistent ring on the flywheel, be shaped on number row and the corresponding driving tooth of magnetic pole on the magnetism resistent ring; Interior row's driving tooth is on magnetic guiding loop, and magnetic guiding loop is fixed on the magnetism resistent ring.Driving shaft is the bent axle of internal-combustion engine, and flywheel is contained on the bent axle.Driven disc is a disc, makes with non-magnet material; Be shaped on the tooth that number row equates with driving disc magnetic pole number on it, be loaded on the driven shaft by spline; Form air gap between driven disc tooth and driving tooth and the magnetic pole.Driven shaft by bearings on flywheel.Magnetic conductive disk is made tubular, places in the driving disc, and the part that its diameter is big can enter or withdraw from the space between magnetic pole and the driven disc; Guide rod passes the hole on the driving disc, and an end is fixed on the magnetic conductive disk, and the other end cover is useful on the spring that makes the magnetic conductive disk return.Shift fork is bearing on the clutch housing, is used to make magnetic conductive disk to move right.

Working principle: during internal combustion engine, driving shaft drives driving disc and rotates together; When not stepping on clutch, the power of spring makes magnetic conductive disk be in position, a left side, forms closed magnetic circuit between driving disc, magnetic pole, driven disc tooth and the driving tooth.The magnetic force that forms between magnetic pole, driven disc tooth and the driving tooth is big, and the power of flywheel passes on the driven disc by magnetic force, is equivalent to clutch and " closes ".When stepping on clutch, shift fork promotes magnetic conductive disk and moves right, and enters the space between magnetic pole and the driven disc tooth; Magnetic conductive disk and driving disc and magnetic pole form that the magnetic force that closed magnetic circuit is subjected to the driven disc tooth is very little, and the power of flywheel can not pass on the driven disc, be equivalent to clutch " from ".Owing to form a plurality of air gaps between the tooth on many air gap permanent magnets clutch driven disk for automobile and magnetic pole and the driving tooth, the big several times of magnetic force that the magnetic force of generation produces than single air gap; The consumption of magnet is significantly reduced.And clutch " from " time magnetic conductive disk and driving disc rotate synchronously; Can not produce eddy current, the magnet intensification is little, magnetic property stable.

Description of drawings

Accompanying drawing is a tectonic maps of the present utility model, 1 release bearing, 2 shift forks, 3 splines, 4 driven shafts, 5 spline housings, 6 guide rods, 7 springs, 8 driving discs, 9 clutch housings, 10 magnetic poles, 11 flywheels, 12 driven disc teeth, 13 internal combustion (IC) engine airframe, 14 bearings, 15 driving shafts, 16 driving tooths, 17 magnetism resistent rings, 18 magnetic conductive disks, 19 driven discs, 20 magnetic guiding loops among the figure.

Embodiment

Driving disc in the accompanying drawing (8) is fixed on the flywheel (11), coheres magnetic pole (10) on it; Driven disc (19) is loaded on the driven shaft (4) by spline; Driven shaft (4) passes clutch housing (9), is bearing on the flywheel (11) with bearing.Magnetic conductive disk (18) places in the driving disc (8); Guide rod (6) one ends are fixed on the magnetic conductive disk (18), and pass the hole on the driving disc; Spring (7) is enclosed within on the guide rod (6), and shift fork (1) is bearing on the clutch housing (9).

Claims (1)

1. air gap permanent magnet automobile clutch more than a kind, it is characterized in that: the structure of many air gap permanent magnets automobile clutch is made up of driving shaft, driving disc, driven shaft, driven disc, magnetic conductive disk, spring, magnetic pole, clutch housing; Wherein driving disc is a disc, is fixed on the flywheel, is bonded with magnetic pole on the driving disc; Fixing magnetism resistent ring on the flywheel is shaped on number row and the corresponding driving tooth of magnetic pole on the magnetism resistent ring, the interior toothrow is on magnetic guiding loop; Magnetic conductive disk is made tubular, places in the driving disc, can enter or withdraw from the space between magnetic pole and the driven disc tooth; Driven disc is a disc, is shaped on the tooth that number row equates with driving disc magnetic pole number on it, is loaded on the driven shaft by spline; Driven shaft by bearings on flywheel; Guide rod one end is fixed on the magnetic conductive disk and passes hole on the driving disc, and the other end is with spring; Shift fork is bearing on the clutch housing, is used to make magnetic conductive disk to move.

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