JP2936979B2 - Clutch adjustment device and clutch adjustment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch adjustment for adjusting a dimensional error and an assembly error of components in a vehicle clutch such as an automobile, and for setting a wear indicator for detecting a wear limit of the clutch in a normal operation state. Apparatus and adjustment method
About the.

[0002]

2. Description of the Related Art FIG. 7 is a sectional view of a main part of an automobile clutch. In the figure, 1 is a clutch housing, 5 is a crankshaft of an engine, 6 is a flywheel fixed to the crankshaft 5, 7 is an output shaft, 8 is a clutch cover, and 10 is a pressure plate.

In the clutch constructed as described above, when hydraulic pressure is introduced into the power cylinder 4, the piston of the power cylinder pushes the push rod 3, pulls up the pressure plate 10 via the rocker arm 2 and drives the clutch on the drive side. is adapted to block the rotation of the crank shaft 5 is transmitted to the output shaft 7 by releasing the pressing force of the clutch fading which is crimped to the flywheel 6 and the pressure plate 10.

In such an automobile clutch, dimensional errors of the components constituting the clutch and assembly errors at the time of assembling the clutch are accumulated between the distal end portion (spherical portion) 3a of the push rod 3 and the lower end receiving portion 2a of the rocker arm 2. .

On the other hand, in the automobile clutch,
A wear indicator for detecting wear of the clutch facing during operation is provided, and when the clutch facing reaches the wear limit, the wear indicator operates to prevent clutch slippage. The wear indicator measures the length of the push rod 3, detects the position of the push rod 3, and indicates that the electric switch has reached the wear limit when the piston of the power cylinder 4 reaches a specific position. What is detected is adopted.

[0006]

As described above, in an automotive clutch, the wear limit of the clutch facing is detected by a wear indicator. However, if there is a dimensional error or an assembly error of a mechanical member of the clutch, this error is detected. An error occurs in the operating point of the wear indicator by the amount corresponding to, and the clutch facing reaches the wear limit before the wear indicator operates and clutch slippage occurs, or the clutch facing wears despite the wear indicator operating There is a problem that the wear indicator does not operate as designed, for example, the margin remains and is not in an abnormal state.

Accordingly, it is an object of the present invention to accurately detect an adjustment amount due to a dimensional error or an assembly error of a clutch component and to operate a wear indicator according to design conditions.
An object of the present invention is to provide a clutch device free from occurrence of clutch slippage and erroneous detection of clutch operation failure.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a vehicle clutch, wherein a nut and a cap are screwed to a push rod connected to a power cylinder so that the length of the push rod can be adjusted so as to be substantially parallel to the push rod. Established in
Adjuster with a step at the middle of the shaft
Shaft and a free-moving or locking fit on the shaft
Adjusting inserted and detachable from the clutch
Face and side abut against the push rod nut
Enabled to the step of the adjusting shaft
An adjusting indicator slidably inserted,
Adjustment between the adjusting indicator from the step portion
A space fixed removably to the sting shaft
And a clutch adjustment mechanism with
To be provided, characterized in that by cooperation between the clutch adjusting mechanism and the push rod and screwed the nut and the cap thereto so as to adjust the dimensional error of the clutch.

[0009]

In a vehicle clutch configured to transmit an operating force from a power cylinder to a clutch facing via a push rod and a rocker arm, a dimensional error and an assembly error of a clutch component are adjusted as follows. .

The adjusting indicator, which is inserted into an adjusting shaft arranged substantially in parallel with the push rod, is brought into contact with both end faces of the nut of the push rod to adjust a zero point serving as a reference for adjustment. A locking indicator is locked to an adjusting shaft, a push rod is moved to a starting point of a stroke to detect a distance (S) between the nut and the indicator as a necessary adjustment amount, and a cap fitted to the nut and the push rod. Is moved until the interval (S) becomes zero, and then the clutch adjusting mechanism is removed.

Further, the nut and the cap are fixed to the push rod with the end face of the cap abutting on the rocker arm. As a result, dimensional errors and assembly errors of the clutch components are completely absorbed, and the wear limit indicator for clutch facing can be operated in accordance with the design conditions.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; However, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the structural components described in this embodiment are not intended to limit the scope of the present invention but to merely illustrative examples. It's just

1 to 6, 1 is a clutch housing, 2 is a rocker arm, 4 is a power cylinder, 42
Is a piston of the power cylinder, 3 is a push rod connected to the piston 42, 41 is a valve of the power cylinder, and a tip portion (spherical portion) of the push rod 3
Reference numeral 3a contacts the lower end receiving portion 2a of the rocker arm 2 to transmit the operating force from the power cylinder 4 to the rocker arm 2.

FIG. 6 shows details of the power cylinder 4 and the push rod 3. One end of the push rod 3 is connected to the piston of the power cylinder 4 so that the operating force from the piston 42 is transmitted, and the cap 3b and the jam nut 55 are screwed into the screw 3c at the other end. I have. The length of the push rod 3 can be adjusted by loosening the jam nut 55 and changing the screwing amount of the cap 3b.

In FIGS. 1 to 6, the internal components such as the crankshaft 5, the flywheel 6, the clutch cover 8, the pressure plate 10, and the output shaft 7 shown in FIG. 7 are not shown.

Reference numeral 50 denotes a clutch adjusting mechanism detachably provided on the power cylinder 4 and the push rod 3 of the clutch, and comprises an adjusting shaft 51, an adjusting face 52, an adjusting indicator 53, a spacer 54 and the like.

When the bolt 52a of the adjusting face 52 is tightened, the adjusting face 52 is adjusted.
, And the arm portion thereof is configured to be detachable from the rear plate 9 of the clutch.

The adjusting indicator 53 is mounted on the adjusting shaft 51 so as to be movable in the longitudinal direction of the shaft 51, and the upper end side surface 53 a thereof can contact the upper end surface of the jam nut 55. I have. In addition, a press that defines the wear indicator operation position
A spacer 54 for adjusting the retraction amount of the brush rod according to the design conditions can be fixed to or removed from the adjusting shaft 51.

Next, an adjustment method for adjusting the dimensional error and the assembly error of the clutch components by using the clutch adjusting mechanism 50 to make the wear indicator operable according to the design conditions will be described.

(1) Detection of Zero (0) Point Position for Adjustment (FIG. 1) (A) Loosen the bolt 52 a of the adjusting face 52 of the clutch adjusting mechanism 50, and adjust the adjusting shaft 5.
1 is made freely movable. (A) The arm 52b of the adjusting face 52 is fixed to the rear plate.

(C) With the adjusting shaft 51 fixed to the spacer 54, the side surface 53 a of the adjusting indicator 53 is brought into contact with the upper end surface of the jam nut 55 via the spacer . (D) In this state, the bolt 52b of the adjusting face 52 is tightened , and the adjusting face is fixed to the adjusting shaft. This state becomes a reference point (zero point) for error adjustment such as dimensional error and assembly error.

(2) Detection of Required Adjustment Amount (FIG. 2) (A) Remove the spacer 54 from the adjusting shaft 51, and move the adjusting indicator 53 to the left until it comes into contact with the step 51a of the adjusting shaft. . (See FIG. 5) (a) Push the push rod 3 to the left until the bubble 41 of the power cylinder 4 comes into contact with the bottom of the cylinder. (C) In the above state, it is confirmed that there is a gap S between the upper end surface of the jam nut 55 and the side surface 53a of the adjusting indicator 53 which have been zeroed in the above item (1). This interval S is a necessary adjustment amount.

(3) Adjustment to the normal clutch fading wear limit position (FIG. 3) (A) Return the jam nut 55 to the left until its upper end surface 55a contacts the side surface 53a of the adjusting indicator 53. (A) By rotating the cap 3b of the push rod 3,
The cap 3b is returned to the left until the end face contacts the jam nut 55. Thereafter, the clutch adjusting mechanism 50 is removed.

(C) While the movement of the jam nut 55 is locked, the jam nut 55 and the cap 3b of the push rod 3 are fixed. Thus the position of the rocker arm 2 becomes a position of 2-2 <br/> Figure 3 in a free state, the push rod retraction amount this state as a clutch fading friction limit position of the normal
It is in the position in the free state.

FIG. 4 is a state diagram when the piston 42 of the power cylinder 4 is moved rightward after the adjustment is completed, and the normal clutch operation is performed.

As described above, since the dimensional error and the assembly error of the clutch mechanism member are absorbed by the clutch adjusting mechanism 50, the wear indicator can be operated according to the design conditions.

[0027]

According to the present invention, the dimensional error and the assembly error of the clutch mechanism member can be completely absorbed and adjusted by the clutch adjusting mechanism, whereby the wear indicator can be operated according to the design conditions. A remarkable effect is obtained such that occurrence of clutch operation failure such as clutch slippage due to malfunction can be prevented.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a main part of a clutch adjustment device according to an embodiment of the present invention, and is an explanatory diagram of a zero point position detection method.

FIG. 2 is an explanatory diagram of a method for detecting a required adjustment amount according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram of a regular wear limit position adjustment according to the embodiment of the present invention.

FIG. 4 is a configuration diagram after adjustment according to the embodiment of the present invention.

FIG. 5 is a sectional view showing an assembly of an adjusting shaft and an adjusting indicator according to the embodiment of the present invention.

FIG. 6 is a detailed view of a power cylinder and a push rod according to the embodiment of the present invention.

FIG. 7 is a sectional view of a vehicle clutch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clutch housing 2 Rocker arm 3 Push rod 3b Cap 4 Power cylinder 41 Valve 42 Piston 50 Clutch adjustment mechanism 51 Adjusting shaft 52 Adjusting face 53 Adjusting indicator 54 Spacer 55 Jam nut

Claims (2)

(57) [Claims] 1. Pushing the operating force from the power cylinder
Rod and rocker arm contacting the push rod
Transmission to clutch facing via
The push rod has a nut and one end face connected to the nut.
It is possible to abut and the other end is connected to the rocker arm.
Caps that can be contacted or contacted are screwed together
The length is adjustable so that it is provided substantially parallel to the push rod.On the shaft
Provide a step at the positionAn adjusting shaft, which is inserted into the shaft so as to be movable or locked, and
An adjusting face made detachable to the switch, and a side surface made contactable with the nut of the push rod.
The adjusting shaftSlidable up to the stepFit into
An inserted adjusting indicator,Adjustment between the adjusting indicator from the step portion
A space fixed removably to the sting shaft
And  A clutch adjustment mechanism equipped with
Clutch adjustment device characterized by comprising 2. A dimensional error and an assembly error of a component in a vehicle clutch configured to transmit an operating force from a power cylinder to a clutch facing via a push rod and a rocker arm abutting on the push rod. In adjusting the error such as using a clutch adjustment mechanism, an adjusting indicator inserted into an adjusting shaft arranged substantially parallel to the push rod and an upper end surface of a nut of the push rod are brought into contact with each other. Adjusting the zero point as a reference for adjustment, and adjusting the adjusting indicator to an adjusting shaft.
Locking the push rod at a predetermined distance from the zero point, moving the push rod to the starting point of the stroke, and detecting the interval (S) between the nut and the indicator as a necessary adjustment amount; Removing the clutch adjustment mechanism after moving the fitted cap until the interval (S) becomes zero, and displacing the nut and the cap with the end face of the cap abutting the rocker arm. And a step of fixing the clutch to a push rod.