CN1172917A - Double air chamber controllable controller for clutch - Google Patents

Abstract

A controller for clutch is composed of dual air chambers (bigger one and smaller one), and silencing exhaustion unit. The hollow part of smaller air chamber is communicated via stroke limiting pile to bigger. Said bigger air chamber is composed of cover, rubber membrane, press disk, clamping hoop, casing, spring, push rod, and air inlet and outlet pipe joint. Its advantages include simple structure, correct operation, easily controlling the degree of connection in clutch and reduction of exhaust noise.

Description

Double air chamber controllable controller for clutch

The invention belongs to a kind of double air chamber controllable controller for clutch.

The manipulation of automobile clutch is the most frequent, requires accurately the device of effort again, and unhandy is partly to engage stroke engaging, foot-operated excessively loosening can cause that vehicle is made a dash or engine misses, degree of relaxation is inenough, can cause that cltuch slipping damages clutch facing, and operation is effort again.Patent 89203283.9 device of motor brake operating and power assisting device are difficult to reach manipulation purpose accurately rapidly, wayward degree of accuracy.And labor intensity is higher.

The object of the present invention is to provide a kind of operation accurate rapidly, laborsaving, make the reliable double air chamber controllable controller for clutch of vehicle driving safety.

The present invention is made up of little air chamber, atmospheric air chamber, noise elimination discharge portion, little air chamber is connected with atmospheric air chamber by hollow space, hollow space is equipped with stingy chamber travel limits post (5), turnover gas-tpe fitting (A) is arranged on the little air chamber, and atmospheric air chamber is made up of atmosphere chamber cap (8), big elastomer diaphragm (9), big platen (10), clip (11), shell (12), spring (13), push rod (14), turnover gas-tpe fitting (B).Big elastomer diaphragm is housed on the push rod (14) and big platen (10) is fitted together, carries out the atmospheric air chamber movable sealing and bear the atmospheric air chamber working thrust.The withdrawal fork of damping spring (13), push rod (14) connection clutch is housed on the push rod (14), transmits the thrust that big or small air chamber produces.The noise elimination discharge portion is made up of eliminate the noise exhaust passage (C) and noise elimination outlet valve (D), noise elimination exhaust port (F), noise elimination exhaust pilot line passage of atmospheric air chamber.Noise elimination exhaust passage (C) is at push rod (14) top, and the road junction end is equipped with noise elimination outlet valve (D), and noise elimination exhaust port (F) is contained in the bottom of shell (12).

The present invention is simple in structure, and it has outside the effect of single air chamber rapid operation, also has following advantage: when clutch reached the stroke that engages half joint, the joint dynamics can be located and control easily to little air chamber exactly.Can improve atmospheric air chamber exhaust stroke speed and reduce the operation interference of exhaust sound driving.Can connect the foot-operated pneumatic control valve Effector of air pressure assisted Effector (manual operation adds Pneumatic pressure operated device), thus easy to operate, alleviate driver's labor intensity, make the vehicle driving safety and reliability.

Description of drawings:

Fig. 1 is the structural representation of state of rest of the present invention;

Fig. 2 is a plan view of the present invention;

Fig. 3 is that the G of little air chamber of the present invention is to structural representation;

Fig. 4 is the location diagram of the present invention and clutch (18), withdrawal fork (19);

Fig. 5 is an atmospheric air chamber working state schematic representation of the present invention;

Fig. 6 is the stingy chamber of a present invention working state schematic representation;

Fig. 7 is the single air chamber control gear of the present invention schematic representation;

Fig. 8 does not have noise elimination exhaust control device schematic representation for the two air chambers of the present invention.

As shown in Figure 1: the effect of little air chamber be by with the cooperating of atmospheric air chamber, the pressurized air of row's atmospheric air chamber earlier, the time-delay exhaust of stingy chamber, can reach clutch has a run down time engaging when partly engaging, make the manipulation of clutch be more prone to reliable.Its structure is by atmosphere chamber cap (8), little air chamber cover (4), and stingy chamber travel limits post (5), small rubber diaphragm (6), little platen (3), stingy chamber fixing hoop (1) and stud nut (2) are formed.

Atmosphere chamber cap (8): strike out round concave shape with steel plate, the edge is pressed into the limit of circular arc so that clamp big diaphragm 9, and there is round scrobicular ring (8a) at the edge of top hollow, and stingy chamber fixing hoop (1) and Small diaphragm-piece (6) are housed, so that fixing little air chamber cover (4); Stage casing, the top atmospheric air chamber turnover gas-tpe fitting (B) of burn-oning.Its effect has been the supporting effect of big or small air chamber sealing and little air chamber.

Little air chamber cover (4): strike out with steel plate, the bottom is a lampshade shape, and the middle part is cylindrical, little dome of top weldering, and at columniform top, a rectangular hole is arranged at the bottom of dome, is that the T-shaped of restriction post is put into the hole; Gas-tpe fitting A burn-ons in the outside of dome; Be pressed into the limit of band radian in the bottom of lampshade shape, so that sealing Small diaphragm-piece 6; Columniform inner chamber height is greater than stingy chamber stroke distances more than two times, with anti-jamming restriction post.Play stingy chamber sealing and fixing and the activity of restriction post the sphere of activities is provided.

Stingy chamber travel limits post (5): be the big middle little cylinder in bottom, T-shaped chimb has been faced on top, and the steel notes part that side-looking does not have chimb processes.There are three double-screw bolts the bottom with fixedly Small diaphragm-piece (6) and little platen (3), and there is circular groove on the double-screw bolt limit, in case Small diaphragm-piece pulls when working; There is the wear-resistant plastic cover of band vent slot on the huge pillar limit, and top dead center has airspace; T-shaped bottom and the flexible rubber sheath in top are in case the up and down bump of T-shaped steel part damages.Play the working stroke control of stingy chamber, the effect of fastening little platen and Small diaphragm-piece.

Small rubber diaphragm (6): make circular film with rubber folder cloth, there are three screw fixed holes the centre; In the outer rim of limit, hole and diaphragm the circular arc limit of protrusion is arranged, in case pull during work.The small rubber diaphragm plays the up and down seal action of little air chamber.

Little platen (3): sweep away the disk of flue with steel plate, top is flat, and three screw fixed holes are arranged, so that be connected with the restriction post; On the screw limit annular arc groove is arranged; In the horn mouth stage casing four ventilating holes are arranged, so that the noise elimination exhaust.

It plays the control force effect of the little air chamber of conduction little platen.

Stingy chamber fixing hoop (1): be installed on atmosphere chamber cap, little air chamber cover, the small rubber diaphragm, play stingy chamber fixation, the both sides of clip (1) are fixing with bolt and nut (2).

Stingy chamber turnover gas-tpe fitting A: be the turnover gas passage of little air chamber.

The effect of atmospheric air chamber is to produce enough thrust, and clutch is thoroughly separated, and energy is controlled by stingy chamber when return makes clutch be in joint half jointing state rapidly again.Its structure is by atmosphere chamber cap (8); Big elastomer diaphragm (9); Big platen (10); Big clip (11); Shell (12); Spring (13); Push rod (14); And turnover gas-tpe fitting (B) is formed.

Big elastomer diaphragm (9) is to make circular film with rubber folder cloth, on diaphragm outer rim thickening limit in the arc-shaped; There is individual macropore the centre, and thickeies downwards on the limit, hole, so that fixedly prevent slippage.Big elastomer diaphragm (9) plays the effect of atmospheric air chamber movable sealing.

Big platen (10) strikes out disc with steel plate, and periphery is convexity downwards; Card is flat, and middle perforate also is welded onpush rod 14 boss, stays a circular groove between push rod and platen, to put into the chimb of big diaphragm 9.Big platen (10) works to produce the atmospheric air chamber working thrust.

Clip (11) is a prior art.Shell (12) strikes out a pot shape with steel plate, and the pot mouth is open and flat and concave circular arc is arranged, and opens a noise elimination exhaust port so that compress big diaphragm (9) bottom; Open the outlet valve pilot line passage E that cools down on the wall; Push rod portals and is tetragonal hole.Shell (12) plays that whole pair of air chamber fixed and the noise elimination effect of the exhaust of eliminating the noise.

Spring (13) is the tapered auger pressure spring.When the free state of two air chambers, rise and compress the minimizing oscillating action.Push rod (14) is annotated part by steel and is processed into.Cotter pin and slotted nut or lock nut (7) (to seal big diaphragm 9) are joined in top, bore a noise elimination exhausting silencer channel C; There are two boss at the middle part, a weldering big platen (10), and one is fulcrum of spring; Push rod and shell slide the movable square that partly is, in case throw-out lever rotates;Push rod holder 15 is to contact with the clutch bifurcated partly.

The effect of vertebra bar is to transmit the thrust that big or small air chamber produced and the noise elimination exhaust passage is provided.

Atmospheric air chamber turnover gas-tpe fitting (B) is welded on atmospheric air chamber to cover (if select the noise elimination exhaust for use, joint B is the suction tude joint).

Noise reducing exhaust device has two big functions: the 1st, reduce the atmospheric air chamber exhaust sound; The 2nd, can improve the return speed of atmospheric air chamber.By exhaust passage (C), outlet valve (D); Outlet pipe (F), exhaust pilot line passage E andshell 8 are formed.Exhaust passage (C) is by push rod top boring and at the road junction end outlet valve joint of burn-oning.Outlet valve D: select normal open type outlet valve for use, control power can be selected air pressure, electricity or machinery control for use.Its work is to close in good time and open, and makes atmospheric air chamber produce operation power and the rapid return of energy.

Exhaust port (F) is the air outlet at the shell lowest order.Exhaust port F is less, and its effect is to reduce the atmospheric air chamber exhaust sound.Noise elimination exhaust pilot line passage E: be shell auger hole and load onto rubber sheath and form outside.Shell 8: the gas holder that is the noise elimination exhaust here.

As shown in Figure 4, this easy control device is fixing on the fixed plate that clutch outer member stretches out.

Working principle of the present invention is as follows:

As shown in Figure 1: when its during in free state, promote two air chambers to top dead center by the elastic force ofspring 13, big elastomer diaphragm (9) is close to little platen (3), restriction post (5) is close to little air chamber cover (4).Push rod holder (14) has certain clearance (size is adjusted by the holder adjusting screw) with clutch release fork.

As shown in Figure 5: when clutch control valve is opened big or small air chamber pressurized air valve simultaneously when vehicle starting or gear shift, the exhaust valve closure of eliminating the noise simultaneously, the 2 air chambers generation thrust that expands rapidly, promote clutch and separate (this moment, little air chamber did not play a driving role) fully, the engine power transmission is cut off fully.After hanging up gear, control valve stops to the also rapid exhaust of atmospheric air chamber air feed (as then not exhaust of control valve of noise elimination exhaust, and open noise elimination outlet valve D), atmospheric air chamber thrust disappears, clutch spring power is pushed into as shown in Figure 6 position to atmospheric air chamber rapidly, this is the actuated position of clutch half joint (spring force of clutch can not promote the working thrust of little air chamber, so travel of clutch suspends in this position) just, the automobile balance starting.If the loaded vehicle or the starting difficulty of going up a slope, the stingy chamber of proper handling control valve small amount of exhaust gas, stingy chamber appropriateness is loosening, and clutch power further increases, and vehicle is started to walk smoothly.As shown in Figure 1, after vehicle driving is steady, the whole exhausts of little air chamber, push rod thrust disappears, big or small air chamber return, clutch engages fully.

The noise elimination exhaust is to produce noise when reducing the atmospheric air chamber exhaust to establish (because of exhaust sound can influence driver's operation), can also improve the atmospheric air chamber reaction velocity simultaneously, makes control more reliable.The stingy constant pressure air containment that contracts is few, and exhaust sound is less relatively, so do not establish the noise elimination exhaust of stingy chamber.

Claims (5)

1, a kind of double air chamber controllable controller for clutch is made up of little air chamber, atmospheric air chamber, noise elimination discharge portion; It is characterized in that: little air chamber is connected with atmospheric air chamber, and stingy chamber travel limits post (5) is equipped with at the middle part; Turnover gas-tpe fitting (A) is arranged on the little air chamber, be connected with one control air valve, atmospheric air chamber is by atmosphere chamber cap (8), big elastomer diaphragm (9), big platen (10), clip (11), shell (12), spring (13), push rod (14), turnover gas-tpe fitting (B) is formed, big elastomer diaphragm is housed on the push rod (14) and big platen (10) is fitted together, can carries out the atmospheric air chamber movable sealing and bear the atmospheric air chamber working thrust.Damping spring (13) is housed on the push rod (14), push rod (14) connects the withdrawal fork of clutch, transmit the thrust that big or small air chamber produces, the noise elimination discharge portion is made up of eliminate the noise exhaust passage (C) and noise elimination outlet valve (D), noise elimination exhaust port (E) noise elimination exhaust pilot line passage of atmospheric air chamber.Noise elimination exhaust passage (C) is at push rod (14) top, and the road junction end is equipped with noise elimination outlet valve (D), and noise elimination exhaust port (F) is contained in the bottom of shell (12);

2, double air chamber controllable controller for clutch according to claim 1, it is characterized in that: little air chamber is by atmosphere chamber cap (8), little air chamber cover (4), stingy chamber travel limits post (5), small rubber diaphragm (6), little platen (3), stingy chamber fixing hoop (1) and bolt (2) are formed, atmosphere chamber cap (8) strikes out round concave shape with steel plate, the edge is pressed into the limit of circular arc, so that clamp big diaphragm (9), between atmosphere chamber cap and shell by clip connected, the edge of atmosphere chamber cap center sky is pressed into concave arc shape, so that clamp Small diaphragm-piece (6), the edge of the empty part in the center of atmosphere chamber cap (8) is fixed with little air chamber cover (4), and the stage casing, top is welded with atmospheric air chamber turnover gas-tpe fitting B;

3, according to the described double air chamber controllable controller for clutch of claim 2, it is characterized in that: round scrobicular ring (8a) is arranged on the atmosphere chamber cap (8), and little air chamber cover (4) edge is pressed into round concave shape, and circle scrobicular ring (8a) and little air chamber cover (4) are by clip connected;

4, according to the described double air chamber controllable controller for clutch of claim 1; It is characterized in that: described atmospheric air chamber top capping is not provided with little air chamber;

5, according to the described double air chamber controllable controller for clutch of claim, it is characterized in that: atmospheric air chamber is not established the noise elimination discharge portion.

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