JPS5962726A - Controller for friction clutch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Backbone of the Invention) This invention provides a second
Regarding the one-way and two-way devices of the jI84 clutch, this one-way control device is composed of a linkage that can be used as a driving means.

Generally, in this type of clutch, a J-squeeze is squeezed between the reaction plate and the pressure grating under the action of a spring, usually in the form of a diaphragm.

The clutch is kept engaged by the elastic action of this diaphragm, and the diaphragm is supported by a cover connected to the reaction grate, thereby exerting an elastic tightening action.

When Kuranoteni 1 receives the action of the linkage, it moves from the 1 system combination state to the j9γ ridge state. This linkage is
fx, which is movable in the direction of dislocation in the normal state, refers to a bearing.

This is called a thrust bearing at the -11 threshold, and acts on the center part of the diaphragm to release the elastic tightening action of the diaphragm applied to the pressure welding route. Linkage system: In addition to this bearing, it also refers to kinematic chain members consisting of forks, levers, ronds, etc.

The h-friction latch fl+1I (2) device proposed here has a certain stroke/when the cage is assembled t'1. , this stroke extends beyond its effective range at both ends, the ends of the stroke corresponding to the engaged and disengaged states of the clutch, respectively. Such overstroke of the linkage does not pose a disadvantage when the linkage is operated manually, such as by means of a clutch pedal, etc. If it exceeds the limit, the 111 device will disengage the clutch.
A good result can be obtained by providing all the idlers to form a free playing area.
If the parts are damaged, this free play area will decrease, so regular overhauls must be carried out to ensure that the entire play area is fixed.

On the other hand, the inventor of the present invention believes that the reason why the linkage has an excessive stroke compared to the actually effective range is that the linkage driving means is not a manual type such as a pedal.
It has been found that the use of automatically controlled drive means such as dynamic motors, hydraulic motors, pneumatic motors, etc. is disadvantageous.

In fact, in this case, for reasons of energy saving and control convenience, the use of a drive means that depends not only on torque but also on stroke (
It is desirable that the III force be as small as possible, and therefore the stroke of the linkage is preferably reduced to its actually effective range or effective zone.

Difficulties arise in attempting to do this, however, from the fact that the friction r isk loses jV over time, and the slippage of the linkage changes gradually over the life of the clutch.

The present #G 13 'jjj found that this change in the stroke of the linkage had a very small effect on the actual length of the effective zone, and was mostly manifested as a positional deviation of the effective zone. As a result of our research focusing on this fact, we found that while always giving a constant length to the stroke of the linkage, both ends of the stroke were adjusted to 0JRB as a function of the wear and tear of the friction disks connected to the clutch.
A method has been found to limit the stroke of the linkage to its actually effective range, or effective zone.

An object of the present invention is to provide a control device 1t for controlling a friction disk (consisting of a neck and a linkage including a drive means) of a friction disk that returns to an engaged position by an elastic means. The goal is to limit the stroke of the linkage to its actual effective range, regardless of whether it is in new or worn condition.

(Summary of the invention) Friction clutch control @1 device i2 (1', i
,! Two stroke stages are arranged at a distance in connection with the drive means of the J-link cage and for stopping the operation of the drive means.
The tracer is movable between both terminals, and when the tracer is connected to the cassette and attempts to overrun either of the terminals, the tracer is movable between the two terminals, and when the tracer attempts to overrun either of the terminals, the tracer is movable between the two terminals. The terminal assembly is adjustably mounted and displaceable according to a stroke adapted to the stroke of the tracer, and is configured to stop operation, and the terminal assembly is adjustably mounted and displaceable according to a stroke adapted to the stroke of the tracer and proportional to the wear of the M friction bias of the clutch. It is characterized by a gradual h vc displacement from the end/gauge G/Ko.

Due to this (14 configuration), the stroke of the linkage is limited to its actual effective range f!
As a result of the direct movement of the gauge, only its position changes automatically while its length remains constant.

1(, t', lost friction j'' isk (il - converted to new, adjustment 'T!Ill:'L VH5 child assembly will of course return to its initial position.

According to another aspect of the invention, the -2 terminal assembly is mounted so as to slide along the slider which is essentially parallel to the stroke of the tracer, and the no-J rubbing means is attached between the two terminal A111 body and the slider. provided between. This friction means has a friction of 1 yen.
Compared to the wear and tear of I-isk? This is to prevent undesirable movement of the adjustable terminal assembly beyond drive by the curved linkage.

)jlAlabairIJJfunctionalρ;1. ) The sliding mechanism of the sub-assembly may have either a linear or zero stroke k (Iifi);
It is also possible to convert by means of a four-layer structure, a cam means, etc.

Further 11 features of the present invention] tba, stone, ya-
In the engaged state of the mating clutch, which is rumored to be
A lever/gauge is included that interacts with the support surface of the two-terminal assembly.

In one embodiment of the present invention, the terminal assembly and the tracer are ! When the tracer reaches either one of the terminals and the ongoing operation tends to overrun that terminal, the driving means is de-energized (a), No. 1 (f) is configured to transmit to the electronic control box.

! The terminal assembly comprises, for example, a potentiometric needle, while the trailer consists of a sliding contact that interacts with the potentiometric needle. Alternatively, the fins may be made up of 1.21'iM fins, one with two tiffi electrical contacts, and the tracer interacting with these tiffi contacts.

The drive means may be in any suitable manner, for example by means of a clutch drive command No. 18? l+lI? i
A hydraulic or pneumatic jack under the control of an electric motor or a lunoid valve controlled by the same electrical command signal or other suitable means may be used.

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Control of a diaphragm clutch for an automobile (see Figure 9), which shows an example in which the present invention is fully applied.

The clutch (1st to 4t1Δ)
It has a cover 10 fixedly provided to a neutral wheel 11. This flywheel 11 forms a reaction route. The clutch is also connected to the main shaft 1 of the automobile transmission.
It has an engagement or t-1 friction Iy''' isk 12 connected to the 3. The friction Iy''' isk 12 is connected to a pressure welding lever 10 connected to the jy par 10 under the elastic tightening action of a diaphragm-like spring 15. - It is held between the grate 14 and the reaction grate 11.

The diaphragm 15 is supported by the cover 10 at 16, and the phi/ is -17 at the center thereof. The fin is-
17, the thrust bearing 18 presses the diaphragm 15 from the engagement state where it is not acting on the diaphragm 15 as shown in FIG.
1 receiver 18 interrupts the tightening action of pressure 4 jig rate 14,
When the clutch changes to the disengaged state in which the I-displacement disk 12 is released, the thrust bearing 18 pushes the clutch to the left in FIG. 1.

Thrust lI'11118 is linkage 18, 19°2
4, this linkage is equipped with an attached spring 19A and has a large fixed pin d? It also includes a lever]9 which is pivotably attached to the lever 20. This lever 19 has its first end 2 in contact with the diaphragm 15 (slas) located in contact with the diaphragm 15.
Because of its shape, it is usually called a fork.

The lever 19 is connected at 23 near its second shaft 22 to a tension bar consisting of a rod, cable or the like.

This connection is achieved through a slight play 1J1 when the clutch is in the engaged state, so that it is only affected by the action of the lever 19 and the diaphragm 15.

The puller 24 is fixed at 25 to a large gear 26 that meshes with a pinion 27 driven by an electric motor 28.

When the electric motor 28 rotates in a direction corresponding to the pulling of the pull rod 24 to the right in FIG. 1, the lever 19 moves from the position ht in FIG. 1 to the position shown in FIG. 2, disengaging and disengaging the clutch. When the motor 28 rotates in the opposite direction, the diaphragm 15
The clutch returns from the disengaged position shown in FIG. 1 to the engaged position shown in FIG. Regardless of whether the condition of the isk 12 is fresh or worn, means are provided to limit the stroke (practically effective range) of the linkage, with each end of the stroke being 11. There is a contrast between the engaged and disengaged positions of the clutch.

For this purpose, end-of-stroke means associated with the drive means 28 to stop its rotation were arranged at a distance. 2
It consists of an assembly of terminals 29 and 30, and a tracer 31 moves between both pots. The tracer 31 is connected to the linkage 18, 19.24 by being attached to the drawbar 24. Tracer 31 is Ryo Mizuko 29. '
30, the control is configured to stop the rotation of the drive means 280 when either one of 30 is reached.
Never exceed the limit. The terminal assemblies 29,30 are adjustable and are mounted so that they can be displaced according to a stroke adapted to the stroke of the tracer 31. The assemblies 29, 30 are also configured to be moved by the lever end 22 to move in proportion to the wear of the q friction guide 12 of the clutch.

Looking more closely, in the embodiments shown in Figures 1 to ≠, when used as a stone gear, the second end 22 of the lever
interacts with the support surface 32 of the middle spear 33, and both terminals 29 and 30 are located on this carriage 33, and
The carriage 33 is mounted so as to slide along the slider 34.

Friction means 35 are provided between the carriage 33 and the slider 340 such that the second end 22 of the lever 19 abuts against the support surface 32 of the carriage horn 33 so that the carriage 33 is undesirably displaced beyond a predetermined displacement due to its drive. It prevents you from doing it. The friction means 35 may consist, for example, of a block fastened to the slider 34 with a fairly large elastic force, but could also be of any other suitable form, such as a buttress washer.

The carriage 33 has a potentiometer 36 whose ends constitute end-of-stroke limit terminals 29,30. The tracer 31 consists of a potentiometer 36 and a reciprocal sliding contact.

The electric motor 28 is supplied with various signals indicated schematically by arrows 37, each signal being applied to an electronic control knob 38 which controls the electric motor 28. Among these signals, seven indicated by arrows 37A are signals for stopping the ongoing rotation, and depending on the position of the slide contact 31 on the potentiometer 36, both slide points 31 are connected to the 71i potentiometer 36. The signal is transmitted when it reaches either end 2'9 or 30 of . Stop signal 37A (l-i?
As a function of the direction of rotation of the motor 28, the stroke of the linkage 24 is always very sensitive to other signals.
limited to the actually valid ranges mentioned in between.

FIG. 1 shows the state in which the new friction disc 12 is in the engaged position, that is, the friction disc 12 is tightened between the two friction discs 18 and 19.24 via the diaphragm 15. Showing clutch.

To release the clutch from the engaged state, divide 6 + 1 sr
A command is issued from the node 38 to rotate the motor 28 in a direction corresponding to the displacement of the pull rod 24 to the right in the figure.

During this displacement, the sliding contact 31 moves over the 1u differential cut 36 and the motor 28 continues to operate if another signal 37 keeps the sliding contact active, which means that the sliding contact 31 is The process continues until it reaches another terminal 30 of . Upon reaching terminal 30, the signal indicated at 37A is interpreted as a signal to stop the motor rotating in the disengagement direction, limiting the stroke of the linkage to the practical range in the disengagement direction. This same (g issue, mo-
It may also be possible to rotate the rotation direction δ in the opposite direction.

When the motor 28 is energized to engage the two terminals t-*, r+, the pull rod 24 floats from the position shown in FIG. The electric current is arranged in four peaks on the potentiometer 36 along the direction in which it goes around to the terminal 29.

When the slide contact 31 is pulled to the terminal 29, at 37A) J
': L, Tai 4 'i' is interpreted as stopping the rotation of the motor during the nojζ movement, and is limited to a practically effective range in the linkage disengagement stroke and engagement direction.

In the fully engaged state of the clutch, the play 1''1 formed at the connection point 23 of the pull rod 24 to the lever 19 ensures that only a thrust movement due to the diaphragm 15 is applied to the lever 19. Friction disc 1
2 decreases, the first end 21 of the lever 19 becomes @/
Rightward in the figure -\Push back tL. As a result, the number of rejected items added to the l1ut receiver increases, so the lever 19 is moved! edge 2
2, there was a bigger force than before, and 1. The carriage 33 is pushed against the rubbing means 35.

FIG. 3 shows the arrangement of the entire assembly with the clutch in the engaged state once the friction screw 12 has worn out, and FIG. 3 shows the arrangement with the clutch in the disengaged state.

As a result of this configuration, no matter what Iψ loss conditions the friction disc 12 is under, the disengagement stroke is always limited to within the practical effective range without the need for any adjustments.

Another embodiment of the invention is shown in FIG. The +1 configuration is similar to the example described above along the first to ≠ figures, and equivalent elements are designated by the same reference numerals.

In FIG. 2, the potentiometer 36 is omitted and the caliper 33 has a single electrical contact with which fingers 31' carried on the pull rod 24 interact. 37
A and 37s are signals respectively corresponding to the contacts 29' and 30'.

...4<What is the means of movement? (The L-motor 28 is replaced by a hydraulic jack 28', and this hydraulic jack 28' is made up of a hydraulic unit consisting of a gas distributor 4o, a j? pump 41, and a tank 42.) As before, the ftt of the r-stream distributor 4o is Deenergizing electricity No. 18 37A acting on the electronic control box 38 as a function of the control direction.

37B controls solenoid valve 40-4.3.

The device shown in FIG. 5 is similar to the devices described in FIGS.

That is, no matter what j≠loss state F of the friction disk]2, the dissociation stroke is controlled within a practically effective range.

[Brief explanation of drawings]

Fig. 1 is a system diagram of the friction clutch control device according to the present invention, showing the case where the friction disk is new and the clutch is in the engaged state; Fig. 1 is a diagram similar to Fig. 1, but the clutch is in the disengaged state. Figure 3 shows the same case as Figure 1, but the friction gasket is worn out and the clutch is in the locked position; Figure 3 is the same as Figure 3. 15 is a similar view to FIG. 1, but showing a case where the clutch is in a disengaged state; and FIG. 15 is a view similar to FIG. 10...Cover. 11...Flywheel (reaction grate). 12...Friction (retention) r-isk, 13...Main shaft. 14...Pressure grating, 15...Diaphragm-shaped spring, 16...Support Point, 17...Finger. 18...Slus) QIl receiver, I'9...Lever. 19A...Spring, 20...Bidet pin (M)
. 21... First MW r of the lever 22... Second end of the lever, 23... Connection point, 24... Tension rod. 25... Stopping point, 26... Large gear. 27...Pinion, 28...Electric 1JH motor (drive means), '28'...Hydraulic gloss. 29.30...Terminal (assembly). 29', 30'...electrical contacts. 31...Tray ν (soonid contact). 31'...Tracer (finger). 32... Support surface, 33... Carriage. 34...Slider, 35...Friction means. 36... Potentiometer, 37... Various 4M numbers. 37A, B...stop signal. 38...Electronic side h picks. 40...y9 istry repeater, 41...po/76
゜42・own tank. Supplementary Procedure 1■ C) (Method) 51;1. IQ, 31 Showa Month 1-1 Director of the Patent Office 1 Indication of case 1982 Patent Application No. 134219 2 Title of invention Friction clutch control device 3 Relationship with the person making the amendment Case Applicant name V Me4
, agent

Claims (1)

[Claims] /, a linkage - / (18, 19, 24), a drive means (28, 28') for driving the linkage, and a linkage associated with the drive means for stopping the operation of the drive means. and stroke end means for, the stroke end means being spaced apart! Terminal assembly (29-30, 29'-30'
), both terminals (1) IFD f ) ” +
(31' r 3'1') Furnace movement I'm]' l
i@T6 ri, applicable) When the tracer reaches either one of the two terminals connected to the laser beam/keso
<! +' [9 such as to act to stop the means;
The elastic means (for the friction clutch that returns to the stop position by μ; 1□1) control device [t and -C, the terminal assembly is oil for adjustment, and the stroke of the tracer (31, 31') The terminal assembly is installed in such a way that it can be displaced according to the stroke V, and the terminal assembly is
A control device that is displaced upwardly on the linkage in proportion to the wear and tear on the chamfer disk (12). λ, assembly consisting of two terminals (29-30, 29'-
3. A control device according to claim 1, wherein the tracer (31,3]') is mounted to slide along a slider (34) substantially parallel to the stroke of the tracer (31,3]'). 3. +d rubbing means (35)! Terminal assembly (29-30
29'-30') and the slider (34). Hiroshi When the above linkage is in the engaged state of the clutch,!
A lever (19) interacting as a stop with the support surface (32) of the terminal assembly, f'f Claim 1
Control device as described in Section. Left Above, 2. The terminal assembly and tracer are connected to two terminals (
When the tracer reaches either one of 29-30, 29'-30, the electric No. 18 (3
7A)
)Device. Z, the above No'jW subassembly refers to the potentiometric needle (36),
Control device according to claim 8'F, wherein said tracer comprises a sliding contact (31) interacting with said potentiometer. Z Above! A control device according to claim 1, wherein the terminal assembly comprises two electrical contacts (29', 30') and said tracer comprises a finger (31') interacting with said electrical contacts. Now, the driving means is controlled by a stop signal (37A) 1! Control device according to claim 1, comprising a dynamic motor (28). 6. A control device according to claim 1, wherein the drive means comprises a hydraulic brake (28') controlled by a solenoid valve (40-43) controlled by a stop signal (37A, 37B).