CN202334250U

CN202334250U - Small air gap permanent magnet automobile clutch with centrally-mounted spring

Info

Publication number: CN202334250U
Application number: CN2011205041137U
Authority: CN
Inventors: 蔡学功
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2012-07-11
Anticipated expiration: 2021-12-07

Abstract

The utility model discloses a small air gap permanent magnet automobile clutch with a centrally-mounted spring. The small air gap permanent magnet automobile clutch structurally comprises a driving shaft, a driving disc, a driven shaft, a magnet yoke, a driven disc, a shielding disc, magnetic poles, a flywheel and a clutch casing, wherein the driving disc is fixed on the driving disc; driving teeth are fixed on the driving disc; the magnet yoke is circular, is arranged between the shielding disc and the driving disc through a guiding rod and can slide along the guide rod; a plurality of magnetic poles are fixed on the magnet yoke; the driven disc is multiply annular and is provided with teeth of which the quantity is same as that of the magnetic poles; and air gaps are formed between the driving teeth and the magnetic poles. The work principle of the small air gap permanent magnet automobile clutch is as follows: when the clutch is not pedaled, the magnet yoke and the magnetic poles are positioned at the left position by using force of the spring and a closed magnetic circuit is formed between the magnetic yoke, the magnetic poles, driven disc teeth and the driving teeth; power of the flywheel is transmitted to the driven disc by means of a magnetic force, i.e. the clutch is closed; when the clutch is pedaled, the magnet yoke and the magnetic poles are positioned at the right position by using a forklift, the magnetic pole and a magnetic guide ring on the shielding disc form a closed magnetic circuit; and the magnetic force between the magnetic pole of the driven disc teeth and the driving disc teeth disappears, i.e. the clutch is separated.

Description

Mid-spring small air gap permanent-magnet clutch for automobile

Technical field

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

Background technology

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; The general mode that moves blanking disc that adopts realizes clutch, and because of magnetic gap is bigger, the magnet consumption is big, makes the manufacturing cost of magnetic gear be higher than friction-type; And dismounting adjustment inconvenience.

The utility model content

The purpose of the utility model provides a kind of mid-spring small air gap permanent-magnet clutch for automobile; This clutch changes the magnetic force between clutch plate and the driving disc spacing pressing through changing the position of magnetic pole and yoke.Because the air gap between magnetic pole and clutch plate is very little, thereby, significantly reduce at the condition lower magnet consumption that transmits identical moment; And dismounting and when adjustment maintenance clutch plate and driving disc spacing pressing between magnetic force disappear so dismounting and keep in repair very convenient.

The structure of the utility model is made up of driving shaft, driven shaft, yoke, clutch plate, driving disc spacing pressing, blanking disc, guide post, magnetic pole, release bearing, shift fork, separator levers, spring, flywheel, bell housing.Wherein flywheel is a disc, is fixed on the driving shaft; Driving disc spacing pressing is an annular, makes with non-magnet material; Be shaped on the driving disc spacing pressing tooth that a few equate with the magnetic pole number on it, driving disc spacing pressing is screwed on flywheel.Be shaped on annular magnetic guiding loop on the blanking disc, blanking disc is fixed together with guide post and driving disc spacing pressing.Yoke is an annular, is loaded between blanking disc and the driving disc spacing pressing through guide post, and can slides along guide post; Fixing many on the yoke to magnetic pole.Driving shaft is the bent axle of internal combustion engine, and flywheel is contained on the bent axle.Clutch plate also for how annular, is made with non-magnet material; Be shaped on the clutch plate tooth that equates with the magnetic pole number on each ring, the interior toothrow is processed gear ring.Clutch plate is loaded on the driven shaft through spline, and its axial location is limited positioning retainer ring; The clutch plate tooth is corresponding with driving tooth and magnetic pole, and and driving tooth and magnetic pole between form air gap.Driven shaft on flywheel, which is provided with positioning retainer ring through bearings, and position is accurately arranged when being used to make clutch plate work.Separator levers is contained on the blanking disc, and an end places in the spring base medial launder, and the other end links through pin and pull bar, and the other end of pull bar links to each other with yoke.Shift fork is bearing on the bell housing, is used to make release bearing to promote spring base and moves right.Spring places between spring base and the blanking disc, is used to make yoke, magnetic pole to be in right position.

Operation principle: during internal combustion engine, driving shaft drives driving disc spacing pressing, blanking disc and yoke and rotates together; When not stepping on clutch, spring makes yoke be in right position through separator levers, pull bar, forms closed magnetic circuit between yoke, magnetic pole, clutch plate tooth and the driving tooth.Magnetic force between magnetic pole, clutch plate tooth and the driving tooth is big, and the power of flywheel passes on the clutch plate by magnetic force, is equivalent to clutch and " closes ".When stepping on clutch, shift fork promotes release bearing moves right spring base, makes yoke, magnetic pole be in position, a left side through separator levers, and the magnetic guiding loop on magnetic pole and the blanking disc forms closed magnetic circuit; Magnetic force between magnetic pole and the master and slave Moving plate tooth is disappeared, and the power of flywheel can not pass on the clutch plate, is equivalent to clutch and " leaves ".

When the speed changer that needs repairing takes out driven shaft in clutch, can step on clutch, make yoke, magnetic pole be in position, a left side, the magnetic guiding loop on magnetic pole and the blanking disc forms closed magnetic circuit; Magnetic force between magnetic pole and the master and slave Moving plate tooth is disappeared, make it can not inhale with magnetic pole to be in the same place, so that dismounting with driving tooth.

Owing to form a plurality of small air gaps between the tooth on the mid-spring small air gap permanent-magnet clutch for automobile clutch plate and magnetic pole and the driving tooth, can significantly reduce the consumption of magnet.

Description of drawings

Accompanying drawing is the structural map of the utility model, 1 release bearing, 2 positioning retainer rings, 3 shift forks, 4 driven shafts, 5 spline housings, 6 spring bases, 7 spring base guide posts, 8 separator levers, 9 bell housings, 10 blanking discs, 11 flywheels, 12 clutch plate teeth, 13 IC engine airframes, 14 bearings, 15 driving shafts, 16 gear rings, 17 driving disc spacing pressings, 18 driving tooths, 19 springs, 20 clutch plates, 21 magnetic poles, 22 yokes, 23 pull bars among the figure.24 guide posts, 25 splines, 26 magnetic guiding loops.

Embodiment

Driving disc spacing pressing in the accompanying drawing (17) is fixed on the flywheel (11), fixed guide pole on it (24), and blanking disc (10); Yoke (22) is loaded between blanking disc (20) and the driving disc spacing pressing (17) through guide post (24), and fixed magnetic pole (21); Clutch plate (20) is loaded on the driven shaft (4) through spline; Driven shaft (4) passes bell housing (9), is bearing on the flywheel (11) through bearing (14).Spring (19) places between spring base (6) and the blanking disc (10), and shift fork (3) is bearing on the bell housing (9).

Claims

1. mid-spring small air gap permanent-magnet clutch for automobile, it is characterized in that: the structure of mid-spring small air gap permanent-magnet clutch for automobile is made up of driving shaft, driven shaft, yoke, clutch plate, driving disc spacing pressing, blanking disc, guide post, magnetic pole, release bearing, shift fork, separator levers, spring, flywheel, bell housing; Wherein driving disc spacing pressing is that annular is used the non-magnet material manufacturing, is shaped on the driving disc spacing pressing tooth that a few equate with the magnetic pole number on it, and driving disc spacing pressing is screwed on flywheel; Be shaped on annular magnetic guiding loop on the blanking disc, blanking disc is fixed together through guide post and driving disc spacing pressing; Yoke is an annular, is loaded between blanking disc and the driving disc spacing pressing through guide post, and can slides along guide post, fixed magnetic pole on the yoke; Clutch plate also for how annular, is used the non-magnet material manufacturing, is shaped on the clutch plate tooth that equates with the magnetic pole number on each ring, and the interior toothrow is processed gear ring; Separator levers is contained on the blanking disc, and an end places in the spring base medial launder, and the other end links through pin and pull bar, and the other end of pull bar links to each other with yoke; Shift fork is bearing on the bell housing, is used to make release bearing to promote spring base and moves right; Spring places between spring base and the blanking disc, is used to make yoke, magnetic pole to be in right position.