WO2011072555A1

WO2011072555A1 - Clutch operating device for instruction car

Info

Publication number: WO2011072555A1
Application number: PCT/CN2010/078227
Authority: WO
Inventors: 蒋在斌; 李峰
Original assignee: 北汽福田汽车股份有限公司; 北京五源通汽车电子科技有限公司
Priority date: 2009-12-14
Filing date: 2010-10-29
Publication date: 2011-06-23
Also published as: CN101875308A; CN101875308B

Abstract

A clutch operating device of an instruction car includes a primary clutch pedal (10), an auxiliary clutch pedal (20), and a clutch release fork (50). The clutch operating device also includes a primary hydraulic mechanism (30) and an auxiliary hydraulic mechanism (40). The primary clutch pedal (10) and the auxiliary clutch pedal (20) are interlinked with the release fork (50) through the primary hydraulic mechanism (30) and the auxiliary hydraulic mechanism (40), respectively. A student and an instructor can control the release and the engagement of the clutch via the primary clutch pedal and the auxiliary clutch pedal, respectively, by using the clutch operating device of the instruction car according to the invention, whereby the primary hydraulic mechanism and the auxiliary hydraulic mechanism can achieve the release and the engagement of the clutch independently and reliably via the release fork and a release bearing.

Description

Coach car clutch control device

Technical field

The invention relates to a clutch operating device. Background technique

In recent years, China's auto industry has developed rapidly, automobile production and sales have hit record highs, and per capita car ownership has also increased rapidly. People's learning needs for driving technology are also increasing, and the coaching car market is also developing rapidly. Under this circumstance, people's performance requirements for coaches are also increasing. The coaching vehicle generally has a secondary brake operating device, but usually does not have a secondary clutch operating device. Although some of the coaches use a pull-type sub-clutch control device, that is, the main clutch pedal and the sub-clutch pedal are linked by a wire rope and the like, so that the action of the sub-clutch pedal drives the main clutch pedal to realize the clutch indirectly through the main clutch pedal. Engagement and separation. However, the inventors of the present invention have found that when the primary and secondary clutches are connected by using a steel wire, fatigue fracture is easily caused by abrasion of the steel wire, and reliability is not high. Therefore, there is a need for a reliable clutch operating device. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to improve the reliability of a clutch operating device. To this end, the present invention provides a coaching clutch operating device capable of reliably achieving engagement and disengagement of a clutch.

The clutch vehicle clutch operating device of the present invention comprises a main clutch pedal, a sub-clutch pedal and a clutch fork, wherein the operating device further includes a main hydraulic mechanism and a secondary hydraulic mechanism, and the main clutch pedal and the sub-clutch pedal respectively The main hydraulic mechanism and the auxiliary hydraulic mechanism are interlocked with the separation fork.

Preferably, the separation fork is provided with a main slot and a sub-slot at different positions in the longitudinal direction, and the main hydraulic mechanism and the auxiliary hydraulic mechanism respectively include a main clutch jack and a sub-clutch pole and respectively pass through the main clutch top A lever and a sub-clutch ejector are coupled to the main slot and the sub-slot. More preferably, the main hydraulic mechanism includes a main clutch master cylinder, a main hydraulic oil pipe, and a main clutch cylinder, the main clutch cylinder includes a main working cylinder and a main working cylinder piston, and the main clutch master pump passes through the main a hydraulic oil pipe is connected to the main working cylinder, the main working cylinder piston is located in the main working cylinder, one end of the main clutch ejector is connected to the main working cylinder piston, and the other end is connected to the main working slot The secondary hydraulic mechanism includes a secondary clutch main pump, a secondary hydraulic oil pipe, and a secondary clutch cylinder, the secondary clutch cylinder includes a secondary working cylinder and a secondary working cylinder piston, and the secondary clutch master cylinder is connected through the auxiliary hydraulic oil pipe To the auxiliary working cylinder, the auxiliary working cylinder piston is located in the auxiliary working cylinder, one end of the auxiliary clutch ejector is connected to the auxiliary working cylinder piston, and the other end is connected to the auxiliary working slot;

The primary clutch master cylinder and the secondary clutch master cylinder respectively supply hydraulic pressure to the primary clutch cylinder and the secondary clutch cylinder in response to the pedaling forces of the primary clutch pedal and the secondary clutch pedal, respectively.

By using the coaching clutch operating device of the present invention, the trainer and the coach can control the separation and engagement of the clutch by the main clutch pedal and the secondary clutch pedal, respectively, which can independently and reliably pass the separation fork and the separation. The bearings achieve separation and engagement of the clutch. DRAWINGS

1 is a schematic structural view showing a clutch and clutch operating device of the present invention;

Figure 2 is a schematic view showing the structure of the clutch and clutch operating device of the present invention when the clutch is disengaged;

Fig. 3 is a schematic view showing the structure of the clutch and clutch operating device of the present invention when the control clutch is engaged. detailed description

The clutch car clutch operating device of the present invention comprises a main clutch pedal 10, a sub-clutch pedal 20 and a clutch release fork 50, wherein the operating device further includes a main hydraulic mechanism 30 and a secondary hydraulic mechanism 40, a main clutch pedal 10 and a sub-clutch The pedal 20 is interlocked with the separation fork 50 by the main hydraulic mechanism 30 and the sub hydraulic mechanism 40, respectively. In order to facilitate the explanation of the advantages of the present invention, the main structure of the clutch 60 will be first described. The clutch 60 can take a variety of forms, preferably in a form that can be separated and engaged by the split bearing 61. The clutch 60 includes an active portion and a driven portion. The clutch 60 transmits power through engagement of the active portion and the driven portion, that is, the engagement of the clutch 60 is achieved. The clutch 60 is disconnected by the separation of the active portion and the driven portion. This is to achieve the separation of the clutch 60. Engagement and disengagement of the clutch 60 is typically accomplished by means of a split bearing 61. Depending on the structure of the clutch 60, the release bearing 61 can be coupled to a separate lever or diaphragm spring of the clutch 60. Hereinafter, the clutch 60 having the diaphragm spring will be described as an example. One end of the diaphragm spring is coupled to the split bearing 61, and the other end is coupled to the driven portion and presses the driven portion to the active portion when the clutch 60 is engaged. Movement of the release bearing 61 causes the diaphragm spring to rotate about its fixed fulcrum, thereby causing the diaphragm spring to loosen the compression of the driven portion to disengage the clutch 60. The clutch 60 is also provided with a return member that returns the release bearing 61 to the engaged state, thereby maintaining the engagement of the clutch 60 under normal conditions. In the clutch 60 with the diaphragm spring, the diaphragm spring itself can function as a separate lever or as a return. Since the components such as the separation bearing 61, the diaphragm spring, and the separation lever are well-known components in the art, they will not be described in detail herein.

With the coaching clutch operating device of the present invention, the trainee and the instructor can control the disengagement and engagement of the clutch by pedaling and releasing the main clutch pedal 10 and the sub-clutch pedal 20, respectively. Specifically, since the main hydraulic mechanism 30 realizes the linkage between the main clutch pedal 10 and the disengagement fork 50, the stepping action applied by the trainer to the main clutch pedal 10 causes the separation fork 50 to move correspondingly, thereby driving the clutch 60 connected to the disengagement fork 50. The bearing 61 is separated to achieve the purpose of separating the clutch. Similarly, since the auxiliary hydraulic mechanism 40 realizes the linkage of the sub-clutch pedal 20 and the disengagement fork 50, the pedaling action applied by the instructor to the sub-clutch pedal 20 causes the separation fork 50 to move correspondingly, thereby driving the clutch 60 connected to the disengagement fork 50. The bearing 61 is separated to achieve the purpose of separating the clutch.

As described above, the trainee and the coach can control the separation and engagement of the clutch by pedaling and releasing the main clutch pedal 10 and the sub clutch pedal 20, respectively. That is, the clutch operating mechanism composed of the main clutch pedal 10, the main hydraulic mechanism 30 and the separating fork 50, and the sub-clutch pedal 20 and the auxiliary hydraulic mechanism The clutching mechanism formed by the 40 and the separating fork 50 is two independent clutch operating mechanisms, which facilitates independent and rapid manipulation of the clutch 60 by the trainees and the coach.

Preferably, as shown in Figs. 1 to 3, the separation fork 50 is provided with a main slot 51 and a sub-slot 52 at different positions in the longitudinal direction. The main hydraulic mechanism 30 and the sub hydraulic mechanism 40 respectively include a main clutch jack 34 and a sub clutch jack 44 and are coupled to the main slot 51 and the sub slot 52 through the main clutch jack 34 and the sub clutch jack 44, respectively. With this configuration, the pedaling force of the main clutch pedal 10 and the sub-clutch pedal 20 acts on the different positions of the separating fork 50 through the main clutch jack 34 and the sub-clutch plunger 44, respectively, so that the separating fork 50 moves. In an embodiment of the present invention, the operating device may include a support member 70 for supporting the separation fork 50 and fitting the separation fork 50 to the fixed base, when the pedaling force of the main clutch pedal 10 and the sub-clutch pedal 20 are respectively When the main clutch jack 34 and the sub clutch plunger 44 act on the separating fork 50, the separating fork 50 can pivot about the position where the separating fork 50 is coupled to the support member 70. In order to ensure that the split fork 50 pivots under the action of the main clutch jack 34 and the secondary clutch jack 44 and remains in connection with the main clutch jack 34 and the secondary clutch jack 44 during pivoting, the master clutch jack 34 can be actuated. And the sub-clutch ejectors 44 each form a rotatably fixed connection with the main slot 51 and the sub-slot 52 of the split fork 50 by suitable connectors such as ball joints.

Preferably, the main slot 51 and the sub-slot 52 are located at one end of the split fork 50, and the other end of the split fork 50 is coupled to the split bearing 61 of the clutch 60. For example, the other end of the separating fork 50 is in contact with the separating bearing 61 as long as the pivoting of the separating fork 50 can push the separating bearing 61. In the embodiment shown in Figures 1 to 3, the pivoting of the separating fork 50 about its position in connection with the support member 70 corresponds to a linear movement of the separating bearing 61 in the horizontal direction of the drawing, which is then effected, for example, by a diaphragm spring. Separation and engagement of the clutch.

More preferably, the sub-slot 52 can be located outside the main slot 51. In the embodiment shown in the drawings, that is, the sub-slot 52 is brought closer to one end of the separating fork 50, so that the same force is exerted on the separating fork 50 by the main clutch jack 34 and the sub-clutch ejector 44. Next, the secondary clutch ejector 44 applies a greater torque to the split fork 50 to achieve faster separation of the clutch 60 in an emergency. In order to make the structure of the operating device reasonable and save space, the support member can be made 70 bits. Between the main slot 51 and the release bearing 61 of the clutch 60, the separation fork 50 is rotatably supported.

Wherein, the stroke of the main clutch ejector 34 is smaller than the stroke of the sub-clutch ejector 44. Here, the "stroke" is the distance between the position of the main clutch apex 34 and the sub-clutch apex 44 in Fig. 2 and the position in Fig. 3, respectively.

As shown in FIGS. 2 and 3, in one embodiment of the present invention, the main hydraulic mechanism 30 includes a main clutch master cylinder 31, a main hydraulic oil pipe 32, and a main clutch cylinder 33. The main clutch sub-pump 33 includes a main working cylinder 33a and a main working cylinder piston 33b. The main clutch master cylinder 31 is connected to the main working cylinder 33a through the main hydraulic oil pipe 32, and the main working cylinder piston 33b is located in the main working cylinder 33a, the main clutch ejector One end of 35 is connected to the main working cylinder piston 33b, and the other end is connected to the main slot 51. The sub hydraulic unit 40 includes a sub-clutch main pump 41, a sub-hydraulic oil pipe 42 and a sub-clutch sub-pump 43. The sub-clutch cylinder includes a sub-cylinder 43a and a sub-cylinder piston 43b, and the sub-clutch master cylinder 41 is connected to the sub-cylinder 43a via the sub-hydraulic oil pipe 42. The sub-cylinder piston 43b is located in the sub-cylinder 43a, and one end of the sub-clutch ejector 44 is connected to the sub-cylinder piston 43b, and the other end is connected to the sub-slot 52.

The main clutch master cylinder 31 and the sub clutch master cylinder 41 respectively supply hydraulic pressure to the main clutch cylinder 33 and the sub clutch cylinder 43 in response to the pedaling forces of the main clutch pedal 10 and the sub clutch pedal 20. How the primary clutch master cylinder 31 and the secondary clutch master cylinder 41 respond to the pedaling force of the primary clutch pedal 10 and the secondary clutch pedal 20 will be described below by way of a specific embodiment.

In one embodiment of the present invention, the main clutch master cylinder 31 and the sub-clutch master cylinder 41 each include a master cylinder and a piston, and the master clutch master cylinder 31 and the sub-clutch master cylinder 41 respectively pass the respective pistons and the master clutch pedal 10 and The sub-clutch pedals 20 are connected and communicate with the main cylinder 33a and the sub-cylinder 43a via respective master cylinders. In the following, taking the stepping action of the main clutch pedal 10 as an example, when the main clutch pedal 10 is depressed, the main clutch pedal 10 pushes the piston movement of the main clutch master cylinder 31, which will make the master cylinder of the main clutch master cylinder 31 The hydraulic oil in the flow flows into the main working cylinder 33a, that is, the main clutch master cylinder 31 supplies hydraulic pressure to the main clutch cylinder 33 in response to the stepping of the main clutch pedal 10. When the main clutch pedal 10 is released, the disappearance of the pedaling force will return the piston of the main clutch master cylinder 31 to the original position, and the hydraulic oil also Returning from the main working cylinder 33a to the master cylinder of the main clutch master cylinder 31. The sub-clutch master cylinder 41 supplies hydraulic pressure to the sub-clutch sub-pump 43 in response to the pedaling of the sub-clutch pedal 20 in a similar manner, and will not be repeatedly described herein.

Further, the cylinder ratio of the master cylinder of the master clutch master cylinder 31 and the sub clutch master cylinder 41 and the corresponding master cylinder 33a and the slave cylinder 43a can be selected as needed, so that the pedaling force of the master clutch pedal 10 and the sub clutch pedal 20 are made. Appropriate amplification is applied to the separation fork 50. Here, the cylinder diameter ratio of the master cylinder of the master clutch master cylinder 31 and the master cylinder 33a may be the same as or different from the cylinder bore ratio of the master cylinder and the slave cylinder 43a of the sub clutch master cylinder 41.

Preferably, the main working cylinder 33a is provided with a main compression spring 33c to keep the main working cylinder piston 33b connected to the main clutch ejector 34; the sub working cylinder 43a is provided with a sub compression spring 43c so that the sub working cylinder piston 43b It remains connected to the sub-clutch ejector 44. Further, the main compression spring 33c and the sub compression spring 43c can also keep the main clutch apex 34 in constant contact with the main slot 51 and the sub clutch apex 44 and the sub slot 52 always in contact. Therefore, alternatively, the main clutch ejector 34 and the sub-clutch apex 44 can be rotatably contacted with the main slot 51 and the sub-slot 52, respectively, without using a connecting member, thereby passing through the main compression spring 33c and the sub-compression The spring 43c always maintains this rotatably contact. This will be more apparent in the following description of the operation of the operating device of one embodiment of the present invention.

The operation of the operating device of one embodiment of the present invention will now be described with reference to Figs. The state shown in Figs. 1 and 2 is a view in which the clutch 60 is in a disengaged state, and Fig. 3 is a view in which the clutch 60 is in an engaged state. As shown in FIG. 2, when the trainer steps on the main clutch pedal 10 to disengage the clutch 60, the master clutch master cylinder 31 supplies hydraulic oil to the master cylinder 33a through the main hydraulic oil pipe 32 in response to the stepping action. The hydraulic oil fills the main cylinder 33a and pushes the main cylinder piston 33b to move, thereby causing the main clutch jack 34 to move. The main clutch ejector 34 applies a driving force to the separating fork 50 at a position where it is connected to the main slot 51, so that the separating fork 50 is rotated in the clockwise direction in FIG. 2 around its connection with the supporting member 70, thereby separating The other end of the fork 50 is moved by the separation bearing 61 toward the diaphragm spring of the clutch 60 (horizontal direction to the left in Fig. 2) to realize the clutch. 60 separation.

As described above, the sub-compression spring 43c applies an elastic force to the sub-cylinder piston 43b to ensure that the sub-working cylinder piston 43b is always connected to the sub-clutch ejector 44, and also ensures that the sub-clutch ejector 44 is always connected to the sub-slot 52. Therefore, although the sub-clutch pedal 20 does not operate in the above process, the sub-clutch master cylinder 41 does not supply the hydraulic pressure to the sub-cylinder 43a, but since the sub-clutch ejector 44 is always connected to the sub-slot 52, the sub-clutch ejector 44 The same movement as when the hydraulic pressure is supplied to the sub-cylinder 43a is also generated with the pivoting of the separating fork 50.

Similarly, when the coach steps the sub-clutch pedal 20 to disengage the clutch 60, the sub-clutch master cylinder 41 supplies hydraulic oil to the sub-cylinder 43a through the sub-hydraulic oil pipe 42 in response to the step-down action. The hydraulic oil fills the sub-cylinder 43a and pushes the sub-cylinder piston 43b to move, thereby causing the sub-clutch ejector 44 to move. The sub-clutch ejector 44 applies a driving force to the separating fork 50 at a position where the sub-slot 52 is connected, so that the separating fork 50 is rotated in the clockwise direction in FIG. 2 around the connection with the supporting member 70, thereby separating The other end of the fork 50 is moved by the separation spring 61 toward the diaphragm spring of the clutch 60 (horizontal direction to the left in Fig. 2) to effect separation of the clutch 60.

As described above, the main compression spring 33c applies an elastic force to the main cylinder piston 33b to ensure that the main cylinder piston 33b is always connected to the main clutch jack 34, and also ensures that the main clutch jack 34 is always connected to the main slot 51. Therefore, although the main clutch master 10 does not operate in the above process, the main clutch master cylinder 31 does not supply hydraulic pressure to the master cylinder 33a, but since the main clutch jack 34 is always connected to the main slot 51, the main clutch jack 34 The same movement as when the hydraulic pressure is supplied to the main cylinder 33a is also generated with the pivoting of the separating fork 50.

In addition, the teaching can achieve the separation of the clutch 60 by stepping on the sub-clutch pedal 20 when the student's operation is in error, such as when the pedal is not in place and the vehicle is about to turn off. At this time, although the hydraulic pressure is filled in both the main cylinder 33a and the sub-cylinder 43a, the separation fork 50 is actually driven by the sub-clutch ejector 43. That is, as long as one of the main hydraulic mechanism and the auxiliary hydraulic mechanism can operate correctly.

The process of separating the clutch 60 will be described below by taking the student operation as an example. When the trainer releases the main clutch pedal 10 (and the sub-clutch pedal 20 is in the released state) to engage the clutch 60, the main clutch is always The pump 31 no longer supplies hydraulic pressure to the main working cylinder 33a, and thus no longer provides a pivoting driving force to the separating fork 50 through the main clutch ejector 34. At the same time, the diaphragm spring of the clutch 60 is returned to move the release bearing 61 away from the diaphragm spring (to the right in the horizontal direction in Fig. 3) to achieve clutch engagement. The release bearing 61 moves under the return of the diaphragm spring and pushes the other end of the separation fork 50, thereby causing the separation fork 50 to rotate in the counterclockwise direction in FIG. 3 about its connection with the support member 70. The counterclockwise rotation of the separation fork 50 will move the main clutch jack 34 and the sub clutch plunger 44 toward the compression main compression spring 33c and the secondary compression spring 43c to return the components to their original positions.

The process by which the instructor releases the sub-clutch pedal 20 to engage the clutch 60 is similar to that described above and will not be repeated here.

As shown in FIGS. 1 to 3, in a preferred embodiment of the present invention, the main working cylinder 33a and the sub working cylinder 43a are integrally formed as a double chamber hydraulic cylinder 80 having two chambers, thereby saving space and being compact. . In addition, a protective steel sleeve may be disposed on the outer surfaces of the main clutch ejector 34 and the sub-clutch ejector 44 and the dual-chamber hydraulic cylinder 80 to smoothly move the main clutch ejector 34 and the sub-clutch ejector 44 when the clutch 60 is engaged. . In the embodiment shown in Figs. 1 to 3, the main cylinder 33a and the sub cylinder 43a of the double chamber hydraulic cylinder 80 are disposed in parallel symmetry, and the main clutch jack 34 and the sub clutch arbor 44 are also disposed in parallel.

Although the present invention has been described in terms of the specific embodiments shown in the drawings, the embodiments of the present invention are not limited to the embodiments illustrated in the drawings, and the features and structures in the embodiments may be arbitrarily combined, and those skilled in the art may Various modifications, additions and substitutions are made without departing from the spirit and scope of the invention.

Claims

Claim

What is claimed is: 1. A trainer clutch operating device comprising a main clutch pedal (10), a sub-clutch pedal (20) and a clutch disengagement fork (50), wherein the operating device further comprises a main hydraulic mechanism ( 30) and a secondary hydraulic mechanism (40), wherein the primary clutch pedal (10) and the secondary clutch pedal (20) are separated from the primary hydraulic mechanism (30) and the secondary hydraulic mechanism (40) Fork (50) linkage.

2. The operating device according to claim 1, wherein the separating fork (50) is provided with a main slot (51) and a sub-slot (52) at different positions in the longitudinal direction, the main hydraulic mechanism ( 30) and the auxiliary hydraulic mechanism (40) respectively include a main clutch jack (34) and a secondary clutch jack (44) and respectively pass through the main clutch jack (34) and the secondary clutch jack (44) Connected to the main slot (51) and the sub-slot (52).

3. The operating device according to claim 2, wherein

The main hydraulic mechanism (30) includes a main clutch master cylinder (31), a main hydraulic oil pipe (32) and a main clutch sub-pump (33), and the main clutch sub-pump (33) includes a main working cylinder (33a) and a main a working cylinder piston (33b), the main clutch master cylinder (31) being connected to the main working cylinder (33a) through the main hydraulic oil pipe (32), the main working cylinder piston (33b) being located at the main working Inside the cylinder (33a), one end of the main clutch jack (34) is connected to the main cylinder piston (33b), and the other end is connected to the main slot (51);

The secondary hydraulic mechanism (40) includes a secondary clutch main pump (41), a secondary hydraulic oil pipe (42), and a secondary clutch cylinder (43), the secondary clutch cylinder (43) including a secondary working cylinder (43a) and a pair a working cylinder piston (43b), the sub-clutch master cylinder (41) is connected to the sub-cylinder (43a) through the sub-hydraulic oil pipe (42), and the sub-cylinder piston (43b) is located at the sub-working Inside the cylinder (43a) One end of the sub-clutch ejector (44) is connected to the sub-cylinder piston (43b), and the other end is connected to the sub-slot (52);

The main clutch master cylinder (31) and the sub-clutch master cylinder (41) respectively respectively responsive to the pedaling force of the main clutch pedal (10) and the sub-clutch pedal (20) to the main clutch The pump (33) and the secondary clutch cylinder (43) provide hydraulic pressure.

4. The operating device according to claim 3, wherein the main working cylinder (33a) is provided with a main compression spring (33c) for the main working cylinder piston (33b) and the main clutch ejector

(34) The connection is maintained; a sub-compression spring (43c) is disposed in the sub-cylinder (43a) to maintain the sub-cylinder piston (43b) and the sub-clutch ejector (44).

5. The operating device according to claim 3, wherein said main clutch master cylinder (31) and sub-clutch master cylinder (41) each comprise a master cylinder and a piston, said master clutch master cylinder (31) and said a sub-clutch master cylinder (41) is coupled to the main clutch pedal (10) and the sub-clutch pedal (20) via respective pistons, and passes through respective master cylinders and the master cylinder (33a) and The auxiliary cylinder (43a) is connected.

The operating device according to any one of claims 3 to 5, wherein the main working cylinder (33a) and the auxiliary working cylinder (43a) are formed as a double chamber hydraulic cylinder having two chambers (80).

7. The operating device according to claim 2, wherein: the main slot (51) and the sub-slot (52) are located at one end of the separating fork (50), and the separating fork (50) The other end is connected to the release bearing (61) of the clutch (60).

8. The operating device according to claim 7, wherein the sub-slot (52) is located outside the main slot (51).

9. The operating device according to claim 8, wherein the operating device comprises a support member (70), the support member (70) being located at a separation bearing of the main slot (51) and the clutch (60) Between (61) for rotatably supporting the separation fork (50).

10. The handling device of claim 9, wherein the stroke of the primary clutch ram (34) is less than the stroke of the secondary clutch ram (44).