CN2520432Y - Cylindrical cam clutch controlling device - Google Patents

Abstract

The utility model discloses a cylindrical cam clutch control device, which is composed of a clutch detaching arm and a shaft. The utility model is characterized in that the cylindrical cam is fixedly connected on the shaft and is provided with a convex groove in which a roller is stuck, the roller is fixed on a slide block which is provided with two tracks on two sides, the slide block is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with the clutch detaching arm, the connecting rod is sleeved with a spring, one end of the spring is stuck on the end face of the slide block, the other end of the spring is fixed, and the other end of the clutch detaching arm is flexibly fixed. The utility model has the advantages that the structure is simple, the cost is low, and the transmission efficiency is high, which is applicable to various throw-out friction clutches.

Description

A kind of cylindrical cam clutch control device

One, technical field

The utility model belongs to the motor drive system technical field, especially relates to the cylindrical cam clutch control device that a kind of Motor Vehicle to configuration manual transmission and the normal box-like friction clutch of dry plate is implemented the control automobile clutch of automatic speed changing or automatic clutch transformation.

Two, background technique

Motor Vehicle stops for satisfying, advance, fall back, the needs of gear shift, between power engine and speed changer, be provided with a clutch, work to transmit and cut off power, at present, what Motor Vehicle was the most frequently used is the normal box-like friction clutch of dry plate, this clutch transmits efficient height, simple in structure, cost is low, is the most frequently used configuration of hand shift Motor Vehicle, but its maneuverability pattern is for manually foot-operated, promptly depress clutch pedal, clutch separation, release the clutch pedal, the clutch combination, in use, not only working strength is big, complicated operation, and require very high to driver's operating technology, existing clutch automation is to adopt fluid coupling, i.e. torque converter, but this scheme is with high costs, be tens of times of the normal box-like friction clutch of dry plate, and transmission efficiency is low, therefore, and on the basis of the normal box-like friction clutch of dry plate, increase an electronic engaging and disengaging gear modification scheme, very far-reaching economic implications is arranged.

Three, technological scheme

The purpose of this utility model be to improve the deficiency of prior art and provide a kind of simple in structure, cost is low, transmission efficiency is high, be fit to the cylindrical cam clutch control device of various normal box-like friction clutches.

The purpose of this utility model is to realize like this, a kind of cylindrical cam clutch control device, form by clutch separation arm and axle, be characterized in that cylindrical cam is fixed in axle and goes up and can rotate around the axle center, cam is provided with tongue, the roller holding also can be rolled in groove in tongue, roller is fixed on the slide block, the slide block both sides are with track, and slide block and connecting rod one end are hinged, and the other end of connecting rod and clutch separation arm are hinged, be with spring on the connecting rod, spring one end holding is at the slide block end face, and the other end of spring is fixed, and the other end of clutch separation arm is movable fixing.

In order further to realize the purpose of this utility model, can also be the separation curve of tongue, close near half hitch that curve, half hitch close curve, full binding curve is an involute, other two curves are positive circular arc line, separating curve, closing the lift ratio that curve, half hitch close curve, full binding curve near half hitch is 1: 0.7-1: 0.1-0.2: 0.2-0.5, separate curve, close operating angle δ, α, β, γ that curve, half hitch close curve, full binding curve near half hitch and be respectively 45-60 °, 25-40 °, 50-80 °, 150-180 °.

Compared with the prior art the utility model has following distinguishing feature and good effect: a cylindrical cam is fixed on one, by the direct current generator rotary driving, the driven member slide block converts the variation of the tongue helix lead of cylindrical cam to to-and-fro motion, drive the clutch separation arm and realize the function of clutch separation, combination, slide block engagement movement direction is provided with spring, pressure spring during clutch, retracting spring during clutch separation, the requirement that the curve of cam tongue " closes from slow " soon by clutch is designed to special-shaped sealing tongue.

Four, description of drawings

Below in conjunction with drawings and Examples the utility model is described in further details.

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 is that the A of Fig. 1 is to view.

Five, specific embodiments

Embodiment 1, a kind of cylindrical cam clutch control device, with reference to Fig. 1, Fig. 2, Fig. 3, cylindrical cam 1 is fixed on the axle 2 and can rotates around axle 2 hearts, cam 1 is provided with tongue 6, roller 5 holdings also can be rolled in groove in tongue 6, roller 5 is fixed on the slide block 3, slide block 3 both sides are with and axle 2 parallel tracks 4, slide block 3 can slide along track 4, slide block 3 is hinged with connecting rod 7 one ends, the other end of connecting rod 7 and clutch separation arm 8 are hinged, be with spring 9 on the connecting rod 7, spring 9 one end holdings are at slide block 3 end faces, the other end of spring 9 is fixed, the other end of clutch separation arm 8 is movable fixing, the separation curve 10 of tongue 6, close curve 11 near half hitch, half hitch closes curve 12, full binding curve 13 is a helix, curve 14,15 is positive circular arc line, separate curve 10 in the present embodiment, close curve 11 near half hitch, half hitch closes curve 12, the lift ratio of full binding curve 13 is 1: 0.7: 0.1: 0.2, separate curve 10, close curve 11 near half hitch, half hitch closes curve 12, the operating angle δ of full binding curve 13, α, β, γ is respectively 45 °, 25 °, 50 °, 150 °, this has constituted a kind of static structure of the present utility model.

Embodiment 2, a kind of cylindrical cam clutch control device, with reference to Fig. 1, Fig. 2, Fig. 3, be on embodiment 1 basis, separating curve 10 in the present embodiment, closing the lift ratio that curve 11, half hitch close curve 12, full binding curve 13 near half hitch is 1: 1: 0.2: 0.5, separate curve 10, close operating angle δ, α, β, the γ that curve 11, half hitch close curve 12, full binding curve 13 near half hitch and be respectively 60 °, 40 °, 80 °, 180 °, other are identical with embodiment 1.

When using the utility model, can be with exterior power by axle 2 inputs, axle 2 drives cylindrical cam 1 and rotates, slide block 3 is converted into reciprocally swinging to the variation of cylindrical cam 1 tongue 6 helix leads, slide block 3 is realized clutch separation by connecting rod 7 pulling clutch separation arms 8, tongue 6 is a closed curve, curve 10 is the clutch separation section, its lift is big, satisfy soon from requiring, if its lift is 1, operating angle δ is 45-60 °, curve 11 is for to close section near half hitch, its lift is also bigger, purpose is to enter bonding state as early as possible, the lift ratio of its lift and curve 10 is 0.7-1, operating angle α is 25-40 °, curve 12 closes section for half hitch, its lift is very little, reach and overcome the static inertia of Motor Vehicle, form and become the quiet moving buffering transition that is, the lift ratio of its lift and curve 10 is 0.1-0.2, operating angle β is 50-80 °, curve 13 is for entirely in conjunction with section, its lift increases to some extent than curve 12, the lift ratio of its lift and curve 10 is 0.2-0.3, operating angle γ is 150-180 °, this section curve can not be too slow, otherwise cause half hitch to close excessively and the ablation clutch plate easily, can not be steep excessively, otherwise can cause engine overload, when roller 5 operates in 0-20 ° of tongue 6 curve lift initial angle, be the clutch separation stop, when roller 5 operates in 285-305 ° of tongue 6 curve lift end angle, for clutch in conjunction with stop, generally speaking, 1 need of cam are done unidirectional rotation and can be satisfied example and close requirement, in particular cases, at curve 11,12,13 section cams also can be done counterrotating, cam 1 will overcome the spring pressure of clutch pressure dish when carrying out the clutch separation action, need big power, and it is very big to carry out curve 10 lifts of separating, aggravated requirement to power, on the contrary carry out clutch in conjunction with the time, be pressure direction motion along the clutch pressure dish, power is required to be negative value, thereby the spring 9 that is provided with has played the strength deposit, the balanced action that discharges promptly operates in curve 11,12,13 sections store rich power, discharge at curve 10 sections.

Claims (2)

1, a kind of cylindrical cam clutch control device, form by clutch separation arm (8) and axle (2), it is characterized in that cylindrical cam (1) is fixed in axle (2) and goes up and can rotate around axle (2) heart, cam (1) is provided with tongue (6), roller (5) holding also can be rolled in groove in tongue (6), roller (5) is fixed on the slide block (3), slide block (3) both sides are with track (4), slide block (3) is hinged with connecting rod (7) one ends, the other end of connecting rod (7) and clutch separation arm (8) are hinged, be with spring (9) on the connecting rod (7), spring (9) one end holdings are at slide block (3) end face, the other end of spring (9) is fixed, and the other end of clutch separation arm (8) is movable fixing.

2, a kind of cylindrical cam clutch control device according to claim 1, the separation curve (10) that it is characterized in that tongue (6), close curve (11) near half hitch, half hitch closes curve (12), full binding curve (13) is an involute, curve (14), (15) be positive circular arc line, separate curve (10), close curve (11) near half hitch, half hitch closes curve (12), the lift ratio of full binding curve (13) is 1: 0.7-1: 0.1-0.2: 0.2-0.5, separate curve (10), close curve (11) near half hitch, half hitch closes curve (12), the operating angle δ of full binding curve (13), α, β, γ is respectively 45-60 °, 25-40 °, 50-80 °, 150-180 °.

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