CS277103B6 - Clutch mechanism of motor vehicle clutch, especially tractors - Google Patents

Abstract

The clutch release mechanism of motor vehicles and tractors consists of a sliding sleeve /3/ with a release bearing /2/ and two oppositely oriented pairs of protrusions /13,14/ on the outer circumference, for connecting the tilting fork /7/. The sliding sleeve /3/ is slidably mounted on a fixed housing /4/ with its inner diameter, which fastens this unit via an insulating insert /5/ to the clutch housing /6/. The sliding sleeve /3/ is separated on the outer surface between each of the pairs of protrusions /13,14/ from the end /10/ of the tilting fork /7/ by an electrically non-conductive washer /8/. An electrically non-conductive washer /8/ is placed on the inner surface of each first protrusion /14/. The tilting fork /7/ inserted by the ends /10/ between the two oppositely oriented pairs of projections /13,14/ is in the rest state pressed by the ends /10/ to the electrically non-conductive pad /8/ on the first projections /14/ by means of a flexible element /18/. The second projections /13/ are spaced apart from the ends /10/ by a gap /15/. The adjusting ring /17/ placed in the sliding sleeve /3/ maintains the position of the tripping bearing /2/ of the sliding sleeve /3/ by a clearance /11/ from the tripping levers /1/. The sliding sleeve /3/ and/or the fixed housing /4/ are connected by a conductor /9/ via a control lamp to one of the poles of the electrical energy source.

Description

Field of technology

The invention relates to a clutch disengagement mechanism of motor vehicles, in particular tractors, for the continuous disengagement of the transmitted torque and for the reliable signaling of the disengagement of the main engine clutch.

Prior art

The hitherto known clutch release mechanism, in particular for tractors, is housed in a clutch housing to which the clutch release mechanism is fixed as a whole by means of its fixed housing. A sliding sleeve is slidably mounted on the outer surface of the fixed housing. The transfer sleeve near the release levers is terminated by a release bearing. On the outer surface, the transfer sleeve is connected to the end of the tilting fork of the lever device. The connection of the transfer sleeve to the tilting fork is made in such a way that both ends of the tilting fork are permanently inserted on the outer surface of the transfer sleeve between the opposite first protrusion and between the second protrusion with a functional gap formed. Opposite both first protrusions and both second protrusions are erected on the outer surface of the transfer sleeve. In the signaling system when the main engine clutch is disengaged, a separate electrical switch is used, which is mechanically connected to the control hand lever or to the clutch pedal of the clutch disengagement mechanism. When the control hand lever is pulled or when the clutch pedal is depressed, the clutch release mechanism mechanically closes a separate electrical switch that turns on the control indicator on the instrument panel.

The disadvantages of the known clutch release mechanism of motor vehicles and tractors are that the actual moment of disengagement is not controlled during the actual start-up of the disengagement bearing. A system using a separate electrical switch is often faulty and, in addition, purchasing a separate electrical switch is not economically advantageous. Furthermore, the current system does not notify the vehicle operator of a reduction in the clearance of the clutch, at which zero the permanent rotation of the release bearing already takes place.

The essence of the invention.

These disadvantages are eliminated by the clutch release mechanism of motor vehicles, in particular tractors according to the invention. The transfer sleeve is provided on its outer surface, between each of the pair of first protrusion and the second protrusion, with an electrically non-conductive pad. Non-conductive washers separate the two ends of the folding fork from the outer surface of the transfer sleeve. In addition, the transfer sleeve is provided on the inner surface of each first protrusion with an electrically non-conductive pad, the tilting fork having a width of each end less than the distance between the inner surface of the second protrusion and the facing surface of the electric non-conductive pad on the first protrusions. The tilting fork is connected under the holding pin to a resilient element, which in the rest state of pressure achieves the pressure of its ends of the tilting fork to the electrically non-conductive washers on the first protrusions. An insulating insert is provided between the fixed housing and the coupling housing, the transfer sleeve or the fixed housing being connected by a conductor via a lamp.

CS 277103 B6 2 with electricity source pole.

The advantages of the clutch release mechanism according to the invention lie in the reliable and accurate signaling without a separate electrical switch. The control lamp always switches on when the release bearing of the transfer sleeve starts up. Early signaling prevents damage or burnout of the clutch plate or damage to the release bearing of the transfer sleeve, both by checking the wear of the clutch plate lining and by checking the clearance between the release bearing and the clutch release levers.

Overview of pictures in the drawing

The attached figure shows the clutch release mechanism of motor vehicles and tractors according to the invention, where Fig. 1 shows an axial section of the device and Fig. 2 shows a side view of the clutch release mechanism with an axial section through non-conductive washers on the outer surface of the transfer sleeve and electrically. an insulating insert located on the clutch housing and on the inner surface of the fixed housing.

Examples of embodiments of the invention

The disengagement mechanism of the motor vehicle clutch is fixed as a whole to the clutch housing 6 by means of a fixed housing 4. An insulating insert 5 is placed between the fixed housing 4 and the clutch housing 6. A sliding sleeve 3 is slidably mounted on the outer surface of the fixed housing 4. proximity of the release levers 1 by the release bearing 2. The release levers 1 are spaced apart from the release bearing 2. The displacement sleeve 2 is further provided on the outer circumference with two oppositely oriented pairs of projections 12, 14 between which the end 10 of the tilting fork 7 is inserted. The transfer sleeve 2 is provided on its outer surface between each of the pair of protrusions 12, 14 and on the inner surface of each first protrusion 14 with an electrically non-conductive washer 8. The tilting fork 7 is connected, below the retaining pin 16, to a resilient element 18 for pressing its ends 10 at rest to the electrically non-conductive pads 8 on the first protrusions 14. The other end of the resilient element 18 is attached to the chassis 12. The ends 10 are spaced apart from the inner surface of the second protrusion 13 by a gap 15. The displacement sleeve 2 has an adjusting ring 17 located on its inner cylindrical surface, the inner surface of which abuts the fixed housing 4. Displacement sleeve 2 ^{with the} fixed housing 4 they are connected by a wire 9 via a control lamp to one of the poles of the power supply.

Spontaneous displacement of the transfer sleeve 2 P ° by the fixed housing 4 is eliminated while maintaining the gap 15 by the adjusting ring 17. When depressing the clutch pedal or pulling the manual control lever, the gap 15 is canceled. 2, the warning light comes on. When the clutch pedal is depressed or the manual control lever is retracted, the resilient element 18 returns the tilting fork 7, the end 10 of which again forms a gap 15 with the second projection 12. This turns off the control lamp. Due to the wear of the clutch lining, the release levers 1 gradually approach the release bearing 4 until the play 11 is completely canceled. By disappearing the play 11 of the release lever 1 and further moving the shift sleeve 2, the gap 15 is closed and the end 10 of the tilting fork 7 rests on the second protrusion 13 This immediately causes the warning light to come on. This signal immediately alerts the vehicle operator to a serious error in the adjustment of the clutch release mechanism.

Claims (2)

PATENT CLAIMS 1. A clutch release mechanism of motor vehicles, in particular tractors, fixed as a whole to the clutch housing by means of a fixed housing, on the outer surface of which a sliding sleeve is slidably mounted, provided with a release bearing on the release lever side and two oppositely oriented pairs of protrusions on its outer circumference. between which the ends of the tilting fork extend, characterized in that the displacement sleeve (3) is provided on its outer surface between each of the pair of protrusions (13, 14) with an electrically non-conductive pad (8) which is also located on the inner surface of each protrusion ( 14), wherein the tilting fork (7) has the width of each of its ends (10) less than the distance between the inner surface of the second protrusion (13) and the facing surface of the electrically non-conductive pad (8) of each of the pair of protrusions (13, 14) and is connected to a resilient element (18), for applying pressure of its ends (10) at rest to the electrically non-conductive pads (8) on the first protrusions (14), wherein an insulating insert (5) is arranged between the fixed housing (4) of the transfer sleeve (3) and the coupling housing (6) and the transfer sleeve (3) and / or the fixed housing (4) is connected by a conductor (9) via a control lamp to one of poles of the power source. 2. A switching mechanism according to claim 1, characterized in that the displacement sleeve (3) has an adjusting ring (17) located on its inner cylindrical surface, the inner surface of which abuts the outer cylindrical surface of the fixed housing (4).