CN201246425Y

CN201246425Y - Push rod type clutch apparatus

Info

Publication number: CN201246425Y
Application number: CNU2008200096818U
Authority: CN
Inventors: 曲冠军
Original assignee: HARBIN BOARD ELECTRIC CO Ltd
Current assignee: HARBIN BOARD ELECTRIC CO Ltd
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2009-05-27
Anticipated expiration: 2018-03-26

Abstract

A push rod type clutch device is particularly suitable for a clutch of an electronic control mechanical type automatic and semiautomatic shift vehicle. The device provided by the utility model adopts the principle of the connecting bar linear mechanism: under the driving condition that a motor has the same torque and the same rotating speed, the mechanism can have increasing acting force at the work station and decreasing velocity of movement along with the increase of the opening of the clutch. The decelerated motion facilitates the detailing of the on-off process of the clutch, simplifies the electronic control program, and improves the shifting quality. The self force increasing function can facilitate the shortening of the separation time, reduce the driving current, and narrow the space occupied by the mechanism.

Description

The push rod clutch device

Technical field

The utility model relates to a kind of automobile clutch actuator, is specially adapted to the automatic and semi-automatic speed change automobile clutch of electric-controlled mechanical.

Background technique

Various automatic, semi-automatic speed change automobiles all need a clutch device, and the cooperation control system is finished the regulation and control to clutch.

On the whole, open clutch and want quick, in conjunction with the time, in one section interval of clutch diaphragm spring binding site, should be slowly and steadily, with the smoothness of assurance gear shift.And the clutch diaphragm spring binding site can move with wearing and tearing, temperature variation, is not that permanent set is constant.

Known clutch mechanism design focal point, most consider be: how littler the electric current of regulation and control clutch is, and how littler the volume that takes up room is, to the regulation and control from, resultant velocity, then all transfers to automatically controlled finishing.Because system requirements shortens the operating time (general one way is in 0.15 second) of clutch as far as possible, this stability to the high speed control accuracy of common DC motor is a difficult problem.

Also consider automatically controlled difficulty, difficult point transferred to mechanical motion solve, usefulness be ways such as damping, cam, make certain holding part motion of mechanism in total travel, speed is pressed close to the demand of gear shift smoothness, result or waste energy, or mechanism's complexity.Simultaneously, do not consider the way that binding site changes, can make property of automatic shft in time passing and become worse and worse.

Therefore, a kind of movement tendency demand that meets of very necessary design, simple, small and exquisite clutch mechanism is assisted control system, finishes the regulation and control to clutch jointly.

Summary of the invention

The utility model provides a kind of push rod clutch mechanism, and this mechanism not only has deceleration, has the reinforcement function simultaneously.

The technological scheme that its technical problem that solves the utility model adopts is:

Adopt " connecting rod straight-line mechanism " working principle, realize above-mentioned functions.

That is: vertical line moves, and is driven by motor-driven spiral straight-line mechanism.Horizontal rectilinear motion is finished by the connecting rod straight-line mechanism.Utilize the point that work moves horizontally on the connecting rod straight-line mechanism, drive the branch of clutch, from motion.

Because the connecting rod straight-line mechanism itself possesses the nonsymmetry of two-way linear motion, cause in aspects such as two-way travelling speed and equilibrant generation difference.

Under the same moment of torsion of motor, drive condition with rotating speed, this mechanism can be with the increase of clutch aperture, and place, operation point active force can increase, and movement velocity can reduce.

As for determining of binding site interval, how to finish by system, not in this patent discussion scope.

The beneficial effects of the utility model are:

Retarded motion helps simplifying automatically controlled program, and the clutch process of refinement clutch improves property of automatic shft.

Self reinforcement ability helps accelerating disengaging time, reduces driving current, dwindles mechanism and takes up room.

Description of drawings

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

Fig. 1 is pole, push rod straight-line mechanism schematic diagram.

Fig. 2 is a C point horizontal velocity plotted curve.

Fig. 3 is a C point horizontal thrust plotted curve.

Fig. 4 is first embodiment's a plan view.

Fig. 5 is second embodiment's a plan view.

Among Fig. 1: push rod AC, pole DB, the B point is the mid point of push rod AC, and: AB=BC=DB

Push rod and pole are sentenced axle at the B point and are flexibly connected, and pole can be around the D spot wobble.

When the A point when the y axis moves down, the C point is done to move along the straight line of x axle under the constraint of pole.

Fine line statement is the equidistant track that AC produces when mobile of A point among the figure, and the mobile distance of C point is reducing gradually as can be seen.

Fig. 2 as seen, A point uniform motion, the C point is done retarded motion.

Fig. 3 illustrates that the A point moves down, and the horizontal thrust at C point place is exaggerated not stopping, and along with the reducing of push rod and x axle clamp angle, the increase that the horizontal component at C point place can be at double.

In Fig. 4 and Fig. 5:

1. motor, 2. leading screw, 3. screw, 4. push rod, 5. angular displacement sensor, 6. sensor pivoted arm, 7. big upper saw pulley, 8. cross slide way, 9. push rod lower shaft, 10. push rod axis, 11. poles, 12. pole lower shafts, 13. clutch pull rod, 14. vertical guides, 15. little upper saw pulleys, 16. axle on the push rod, 17. spring assist assemblies.

Embodiment

In Fig. 4, axle (16) connects firmly with screw (3) on the push rod, and push rod (4) can rotate around the axis.Push rod axis (10) and pole (11) upper shaft hole pin connection are relative to rotating.Pole lower shaft (12) and housing sidewall pin connection, pole (11) can be swayed.The coaxial connection of push rod lower shaft (9) lead greatly opinion (7) and clutch pull rod (13).

Push rod (4) length is the twice of pole (11) length, both connect the position---push rod axis (10) is divided push rod equally, meet, the requirement of push rod straight-line mechanism principle.

The vertical side that is installed in screw (3) of little guiding opinion (15) axle with leading screw (2).

Therefore, rotate when motor (1) drives leading screw (2), the little guiding opinion (15) on the screw (3) can't be rotated by vertical guide (14) restriction, can only make linear vertical motion, be subjected to pole (11) constraint, it is traversing that push rod (4) promotes clutch pull rod (13) level, finishes the opening and closing of clutch.

For the size relationship of avoiding gap and parts deformation failure straight-line mechanism increases resistance to motion, big guiding opinion (7) horizontal rolling in the groove of cross slide way (8) of coaxial setting is to bear the component of Vertical direction.

Angular displacement sensor (5) is installed in housing sidewall, and sensor pivoted arm (6) drives lower swing in push rod lower shaft (9) translation, and its value reflection clutch gets the opening and closing state.

In the described embodiment of Fig. 5, except that label was spring assist assembly (17), remaining parts was identical with Fig. 2 among the figure.

This spring assist assembly (17) is carried in push rod axis place, and purpose is clutch power-assisted for mechanism opening, can play the effect that further acceleration is opened clutch or reduced driving current.

Claims

1. push rod clutch device, be made up of angular displacement sensor, motor, leading screw, screw, push rod, pole, pull bar, upper saw pulley and two guide rails, it is characterized in that: little upper saw pulley (15) axle is vertical with leading screw (2) and be installed in a side of screw (3); Axle (16) connects firmly with screw (3) on the push rod, and push rod (4) can rotate around the axis; Push rod axis (10) and pole (11) upper shaft hole pin connection are relative to rotating; Pole lower shaft (12) and housing sidewall pin connection, pole (11) can be swayed; Big upper saw pulley of the coaxial connection of push rod lower shaft (9) (7) and clutch pull rod (13); Angular displacement sensor (5) is installed in housing sidewall, and sensor pivoted arm (6) drives lower swing in push rod lower shaft (9) translation.

2. push rod clutch device according to claim 1 is characterized in that: little upper saw pulley (15) scroll-up/down in the groove of vertical guide (14).

3. push rod clutch device according to claim 1 is characterized in that: push rod (4) length is the twice of pole (11) length, and the position that both connect is divided push rod (4) equally.

4. push rod clutch device according to claim 1 is characterized in that: big upper saw pulley (7) horizontal rolling in the groove of cross slide way (8).