CN112443589A - Clutch control mechanism and vehicle - Google Patents
Clutch control mechanism and vehicle Download PDFInfo
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- CN112443589A CN112443589A CN201910818153.XA CN201910818153A CN112443589A CN 112443589 A CN112443589 A CN 112443589A CN 201910818153 A CN201910818153 A CN 201910818153A CN 112443589 A CN112443589 A CN 112443589A
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- rolling
- frame
- plate
- pin shaft
- clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention belongs to the technical field of clutch control mechanisms, and particularly relates to a clutch control mechanism and a vehicle, wherein the clutch control mechanism comprises: separating the bearing; the executing frame comprises a rolling plate and a supporting frame for placing and supporting the release bearing, the first end of the supporting frame is connected with the rolling plate, and the second end of the supporting frame is rotatably connected to the transmission shell through a supporting pin shaft; and the driving device comprises a rolling part, and applies driving force to the rolling plate end of the execution frame through the rolling part and the rolling plate to enable the execution frame to swing around the axis of the supporting pin shaft, so that the release bearing is pushed to move towards the direction close to or away from the clutch to control the engagement or the disengagement of the clutch. The clutch control mechanism of the present invention can maintain the clutch in the engaged state even when the driving force of the driving device is released or reduced in the engaged state of the clutch, and can reduce energy consumption.
Description
Technical Field
The invention belongs to the technical field of clutch control mechanisms, and particularly relates to a clutch control mechanism and a vehicle.
Background
An operating device for a friction-disc clutch is known, comprising: a lever actuator; an actuating device for pivoting the lever actuator about a pivot axis in order to apply a force to the friction disk clutch by means of the lever actuator; and a reset device for applying a reset torque to the lever actuator about the tumble axis. Furthermore, a damping device is provided for applying a predetermined damping torque to the lever actuator about the tilting axis. The actuating device has a roller which is arranged between the lever actuator and a rest element and can be moved along the lever actuator in order to change the distance between the rest element and the lever actuator.
In this form of clutch operating device, by operating the actuator, the roller is driven to the right, whereby the distance between the lever actuator and the rest element increases against the resistance of the return device and the right end of the lever actuator is moved slowly upwards. Conversely, if the actuator is no longer controlled, the reset device rapidly drives the roller back to the left and the right end of the lever actuator ceases to operate the clutch. The right end of the lever actuator can be quickly stopped to operate the clutch when the actuator is not controlled. Therefore, the clutch operating device is suitable for a normally open clutch. For normally closed clutches, the clutch is required to be quickly separated when in operation and slowly combined when in stop operation, and obviously, the clutch control device is not suitable for normally closed clutches. In addition, the rotating shaft of the lever actuator is arranged on the same side as the lever actuator, and the right end part of the actuating clutch is arranged on the other side of the lever actuator, so that the driving lever arm is short, the required driving force is large, and the requirement on the motor is high. In addition, since the position needs to be reserved on the lever actuator to provide the reset device and the damping device, the design size of the lever actuator needs to be larger, and the difficulty of spatial arrangement is larger.
In addition, in the conventional clutch operating device, the driving force of the motor needs to be kept constant in the engaged state of the clutch, and the electric energy loss is large.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a clutch control mechanism and a vehicle are provided to solve the problem that the driving force of a motor needs to be kept constant and the electric energy loss is large in the engagement state of a clutch in the conventional clutch control device.
To solve the above technical problem, in one aspect, an embodiment of the present invention provides a clutch control mechanism, including:
separating the bearing;
the executing frame comprises a rolling plate and a supporting frame for placing and supporting the release bearing, the first end of the supporting frame is connected with the rolling plate, and the second end of the supporting frame is rotatably connected to the transmission shell through a supporting pin shaft; the bottom surface of the supporting frame and the bottom surface of the rolling plate are in transition through an arc surface;
the driving device applies driving force to the rolling plate end of the execution frame through the rolling piece and the rolling plate, so that the execution frame swings around the axis of the supporting pin shaft, and the release bearing is pushed to move towards or away from the clutch so as to control the engagement or the disengagement of the clutch;
in the engaging state of the clutch, the rolling piece and the cambered surface limit mutually to provide resistance for preventing the execution frame from swinging back, so that the clutch can still be kept in the engaging state after the driving force applied to the rolling plate end of the execution frame is released or reduced.
Optionally, the support pin shaft and the rolling plate end of the execution frame are located at two sides of the release bearing;
the axis direction of the supporting pin shaft is perpendicular to the walking direction of the walking device.
Optionally, the bottom surface of the rolling plate is a slope or a cambered surface.
Optionally, the driving device includes a thrust device, a walking device and a walking guide device, the walking device includes the rolling member, the top of the rolling member is in rolling contact with the bottom surface of the rolling plate, and the thrust device is used for pushing the rolling member to walk along the direction defined by the walking guide device, so as to apply a driving force to the rolling plate end of the execution frame.
Optionally, the walking device further comprises a retainer, the walking guide device comprises a guide plate, the guide plate is fixed on the transmission housing or a stationary part of the thrust device, a roller path is arranged on the guide plate, the rolling member is rotationally connected to the retainer, the bottom of the rolling member is located in the roller path, and the thrust device drives the retainer to move, so that the rolling member rolls along the roller path to apply a driving force to a rolling plate end of the actuator frame;
the rolling way is provided with a first end far away from the supporting pin shaft and a second end close to the supporting pin shaft, the rolling piece is in contact with the highest position of the bottom surface of the rolling plate when being positioned at the first end of the rolling way, the rolling piece is in contact with the lowest position of the bottom surface of the rolling plate when being positioned at the second end of the rolling way, and when the rolling piece rolls from the first end to the second end of the rolling way, the executing frame swings around the axis of the supporting pin shaft in the direction far away from the guide plate; when the rolling piece rolls from the second end to the first end of the roller path, the execution frame swings around the axis of the supporting pin shaft to the direction close to the guide plate.
Optionally, the thrust device includes a motor and a lead screw, the lead screw includes a lead screw connected to a motor shaft of the motor and a lead screw nut screwed to the outside of the lead screw, and the lead screw nut is fixedly connected to or integrally formed with the holder; alternatively, the first and second electrodes may be,
the thrust device is an air cylinder, and the outer end of a piston rod of the air cylinder is connected to the retainer; alternatively, the first and second electrodes may be,
the thrust device is a hydraulic cylinder, and the outer end of a piston rod of the hydraulic cylinder is connected to the retainer.
Optionally, a pin shaft installation sleeve is arranged at one end, away from the rolling plate, of the support frame, the support pin shaft is rotatably inserted into the pin shaft installation sleeve, and two ends of the support pin shaft are fixed on the transmission housing.
Optionally, the walking device comprises a retainer and rolling elements, the walking guide device comprises a guide plate, the guide plate is fixed on a transmission housing or a stationary part of the thrust device, a raceway is arranged on the guide plate, the rolling elements are rotatably connected to the retainer, tops of the rolling elements are in contact with a bottom surface of the rolling plate, bottoms of the rolling elements are located in the raceway, and the thrust device drives the retainer to move, so that the rolling elements roll along the raceway to apply a driving force to a rolling plate end of the actuator frame;
the rolling way is provided with a first end far away from the supporting pin shaft and a second end close to the supporting pin shaft, the second end of the rolling way extends to the lower part of the bottom surface of the supporting frame, the rolling piece is in contact with the highest position of the bottom surface of the rolling plate when being positioned at the first end of the rolling way, the rolling piece is in contact with the bottom surface of the supporting frame when being positioned at the second end of the rolling way, and when the rolling piece rolls from the first end to the second end of the rolling way, the executing frame swings around the axis of the supporting pin shaft in the direction far away from the guide plate; when the rolling piece rolls from the second end to the first end of the roller path, the execution frame swings around the axis of the supporting pin shaft to the direction close to the guide plate.
Optionally, the bottom surface of the support frame and the bottom surface of the rolling plate are in transition through an arc surface;
the walking device comprises a retainer and a rolling element, the walking guide device comprises a guide plate, the guide plate is fixed on a transmission shell or a static part of the thrust device, a roller path is arranged on the guide plate, the rolling element is rotationally connected on the retainer, the top of the rolling element is contacted with the bottom surface of the rolling plate, the bottom of the rolling element is positioned in the roller path, and the thrust device drives the retainer to move so that the rolling element rolls along the roller path to apply driving force to the end of the rolling plate of the execution frame;
the rolling way is provided with a first end far away from the supporting pin shaft and a second end close to the supporting pin shaft, the rolling piece is in contact with the highest position of the bottom surface of the rolling plate when being positioned at the first end of the rolling way, the rolling piece is in contact with the cambered surface when being positioned at the second end of the rolling way, and when the rolling piece rolls from the first end to the second end of the rolling way, the executing frame swings around the axis of the supporting pin shaft in the direction far away from the guide plate; when the rolling piece rolls from the second end to the first end of the roller path, the execution frame swings around the axis of the supporting pin shaft to the direction close to the guide plate.
According to the clutch control mechanism of the embodiment of the invention, the first end of the supporting frame of the execution frame is connected with the rolling plate of the execution frame, the second end of the supporting frame of the execution frame is rotatably connected on the transmission shell through the supporting pin shaft, the bottom surface of the supporting frame and the bottom surface of the rolling plate are transited through the cambered surface, the driving device applies driving force to the end of the rolling plate of the execution frame through the rolling piece of the driving device, so that the execution frame swings around the axis of the supporting pin shaft, and the release bearing is pushed to move towards or away from the clutch so as to control the engagement or the release of the clutch. In the engaging state of the clutch, the rolling piece and the cambered surface limit mutually to provide resistance for preventing the execution frame from swinging back, so that the clutch can still be kept in the engaging state after the driving force applied to the rolling plate end of the execution frame is released or reduced. In this way, even when the driving force of the driving device is released or reduced in the engaged state of the clutch, the clutch can be maintained in the engaged state, and energy consumption can be reduced.
In addition, because the supporting pin shaft and the rolling plate end of the executing frame are positioned at two sides of the release bearing, the lever force arm is lengthened (the force arm of the driving force applied to the rolling plate end of the executing frame relative to the supporting pin shaft is far larger than the force arm of the axial force of the release bearing relative to the supporting pin shaft) so as to achieve the labor-saving effect and ensure that the driving force demand of the driving device is smaller. For example, when the drive device includes a motor, the requirements for the motor are low.
And this clutch control mechanism promotes running gear through thrust device and walks to exert drive power to the roll plate end of carrying out the frame, drive and carry out the swing of frame and in order to control the clutch action, have the characteristics that the action is quick, reset gently, be applicable to very much the normally closed clutch, in order to satisfy the characteristic demand that normally closed clutch separation is fast, combines slowly.
In addition, the execution frame comprises a rolling plate and a supporting frame, the rolling part is contacted with the bottom surface of the rolling plate, the rolling part is more favorable for pushing the rolling plate end of the execution frame, and the driving force is saved. In addition, the friction force is changed into rolling friction, so that the friction force is smaller, the energy loss is reduced, and the driving efficiency is improved.
The actuating lever and the actuating lever of the clutch operating device in the prior art are replaced by the actuating lever, the support frame of the actuating lever is used for placing and supporting the release bearing, and the support frame serves as the actuating lever of the clutch operating device in the prior art, so that the clutch control mechanism is higher in integration level, simpler in structure, easier to arrange in space and lighter in weight.
In another aspect, an embodiment of the present invention further provides a vehicle, which includes the above clutch control mechanism.
Drawings
FIG. 1 is a perspective view of a clutch control mechanism provided in accordance with a first embodiment of the present invention;
FIG. 2 is a perspective view of the clutch control mechanism with the release bearing, release bearing backing plate and support member removed in accordance with the first embodiment of the present invention;
FIG. 3 is a top plan view of the clutch control mechanism with the release bearing and release bearing backing plate removed in accordance with the first embodiment of the present invention;
FIG. 4 is a schematic view of an actuator housing of the clutch control mechanism provided in accordance with the first embodiment of the present invention;
FIG. 5 is a schematic illustration of an initial position of the clutch control mechanism (rolling elements at a first end of the race) provided by the first embodiment of the present invention;
FIG. 6 is a schematic illustration of the operating position of the clutch control mechanism provided by the first embodiment of the present invention (rolling elements at the second end of the race);
FIG. 7 is a perspective view of the clutch control mechanism with the release bearing and release bearing backing plate removed in accordance with the first embodiment of the present invention;
FIG. 8 is a perspective view of a support member of the clutch control mechanism provided in accordance with the first embodiment of the present invention;
FIG. 9 is an assembly view of a release bearing, guide shaft, release bearing backing plate, support member of the clutch control mechanism provided in accordance with the first embodiment of the present invention;
FIG. 10 is a schematic illustration of the operating position of the clutch control mechanism provided in accordance with the second embodiment of the present invention (rolling elements at the second end of the races);
FIG. 11 is a perspective view of a clutch control mechanism provided in accordance with a third embodiment of the present invention;
FIG. 12 is a perspective view of a clutch control mechanism with the release bearing and release bearing backing plate removed in accordance with a third embodiment of the present invention;
FIG. 13 is a schematic illustration of an initial position of a clutch control mechanism (rolling elements at a first end of the race) provided by a third embodiment of the present invention;
FIG. 14 is a schematic illustration of the operating position of the clutch control mechanism provided by the third embodiment of the present invention (rolling elements at the second end of the races);
FIG. 15 is a schematic diagram of the engagement of the arcuate projections, release bearing and release bearing backing plate of the clutch control mechanism according to the third embodiment of the present invention.
The reference numerals in the specification are as follows:
1. separating the bearing; 2. an execution frame; 21. a rolling plate; 22. a support frame; 221. the pin shaft is provided with a sleeve; 222. a through hole; 23. a cambered surface; 4. supporting the pin shaft; 5. a thrust device; 51. a thrust shaft; 52. mounting a bracket; 6. a traveling device; 61. a holder; 62. a rolling member; 7. a walking guide device; 71. a guide plate; 8. a guide shaft; 9. separating the bearing bottom plate; 91. a claw portion; 10. a support element; 101. a support block; 102. a first leg; 103. a second leg; 20. a guide shaft base; 30. an arc-shaped bump; 301. and a limiting hole.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The clutch control mechanism comprises a release bearing, an actuating frame and a driving device, wherein the actuating frame comprises a rolling plate and a supporting frame for placing and supporting the release bearing, the first end of the supporting frame is connected with the rolling plate, and the second end of the supporting frame is rotatably connected to a transmission shell through a supporting pin shaft; the bottom surface of the supporting frame and the bottom surface of the rolling plate are in transition through an arc surface.
The driving device comprises a rolling part, and the driving device applies driving force to the rolling plate end of the execution frame through the rolling part and the rolling plate to enable the execution frame to swing around the axis of the supporting pin shaft, so that the release bearing is pushed to move towards the direction close to or away from the clutch, and the engagement or the disengagement of the clutch is controlled.
In the engaging state of the clutch, the rolling piece and the cambered surface limit mutually to provide resistance for preventing the execution frame from swinging back, so that the clutch can still be kept in the engaging state after the driving force applied to the rolling plate end of the execution frame is released or reduced. In order to release or reduce the driving force of the driving device and keep the clutch in the joint state, the bottom surface of the supporting frame and the bottom surface of the rolling plate are transited through a cambered surface, and the cambered surface protrudes towards the force application direction of the driving device. The bottom surface of the supporting frame and the bottom surface of the rolling plate form an obtuse angle.
In some embodiments, the rolling plate end of the actuation carriage is a rolling plate.
In some embodiments, the rolling plate end of the actuation carriage includes a rolling plate and a transition contour of the rolling plate and the support frame.
In some embodiments, the rolling plate end of the execution frame includes a rolling plate, a transition arc surface between the rolling plate and the support frame, and a part where the support frame is connected to the transition arc surface (the part is located on a side of the release bearing away from the support pin shaft).
First embodiment
As shown in fig. 1 to 8, a clutch control mechanism according to a first embodiment of the present invention includes a release bearing 1, an actuator frame 2, and a driving device. The execution frame 2 comprises a rolling plate 21 and a supporting frame 22 for placing and supporting the release bearing 1, a first end of the supporting frame 22 is connected (fixedly connected or integrally formed) with the rolling plate 21, and a second end of the supporting frame 22 is rotatably connected to the transmission housing through a supporting pin shaft 4. The driving device applies driving force to the rolling plate end of the execution frame 2 to enable the execution frame 2 to swing around the axis of the supporting pin shaft 4, so that the release bearing 1 is pushed to move towards or away from the clutch, and the engagement or the disengagement of the clutch is controlled.
The driving device comprises a thrust device 5, a walking device 6 and a walking guide device 7, wherein the walking device 6 is in rolling contact with the bottom surface of the rolling plate 21, the thrust device 5 is used for pushing the walking device 6 to walk along the direction limited by the walking guide device 7 so as to apply driving force to the rolling plate end of the execution frame 2, the execution frame 2 is made to swing around the axis of the supporting pin shaft 4, and therefore the release bearing 1 is pushed to move towards the direction close to or far away from the clutch so as to control the engagement or the disengagement of the clutch. The supporting pin shaft 4 and the rolling plate end of the execution frame 2 are positioned on two sides of the release bearing 1.
The bottom surface of the rolling plate 21 is a side surface of the rolling plate 21 facing the walking device 6. The bottom surface of the support frame 22 is a side surface of the support frame 22 facing the running gear 6.
Preferably, the axis direction of the supporting pin shaft 4 is perpendicular to the walking direction of the walking device 6.
Preferably, the bottom surface of the rolling plate 21 is a slope or a cambered surface. The friction force when the walking device 6 is in rolling contact with the inclined plane or the cambered surface is smaller, so that the walking device 6 can push the actuating frame 2 more conveniently, and the driving force is saved. In addition, the friction force is changed into rolling friction, so that the friction force is smaller, the energy loss is reduced, and the driving efficiency is improved.
The walking device 6 comprises a retainer 61 and a rolling element 62, the walking guide device 7 comprises a guide plate 71, the guide plate 71 is fixed on a transmission shell or a static part of the thrust device 5, a roller path is arranged on the guide plate 71, the rolling element 62 is rotationally connected on the retainer 61, the top of the rolling element 62 is in contact with the bottom surface of the rolling plate 21, the bottom of the rolling element 62 is positioned in the roller path, the thrust device 5 drives the retainer 61 to move, so that the rolling element 62 rolls along the roller path, and the rolling element 62 applies driving force to the rolling plate end of the execution frame 2. The rolling track is provided with a first end far away from the supporting pin shaft 4 and a second end close to the supporting pin shaft 4, the rolling element 62 is in contact with the highest position of the bottom surface of the rolling plate 21 when being positioned at the first end of the rolling track, and the rolling element 62 is in contact with the lowest position of the bottom surface of the rolling plate 21 when being positioned at the second end of the rolling track. When the rolling element 62 rolls from the first end to the second end of the raceway, the execution frame 2 swings around the axis of the supporting pin shaft 4 in the direction away from the guide plate 71 (the included angle between the rolling plate 21 and the guide plate 71 is enlarged); when the rolling element 62 rolls from the second end to the first end of the raceway, the executing frame 2 swings around the axis of the supporting pin 4 in a direction approaching the guide plate 71 (the included angle between the rolling plate 21 and the guide plate 71 is reduced).
The bottom surface of the support frame 22 transitions through a contour with the bottom surface of the rolling plate 21 such that the rolling members 62 contact the contour when at the second end of the raceway. The arc surface protrudes toward the urging direction of the rolling member 62. The bottom surface of the supporting frame 22 and the bottom surface of the rolling plate 21 form an obtuse angle.
In the engaged state of the clutch, the rolling member 62 and the arc surface limit each other to provide resistance against the swing back of the actuation frame 2, so that the clutch can still be maintained in the engaged state after the driving force applied to the rolling plate end of the actuation frame 2 is released or reduced. In this way, even when the driving force of the driving device is released or reduced in the engaged state of the clutch, the clutch can be maintained in the engaged state, and energy consumption can be reduced.
In the first embodiment, the rolling plate end of the executing frame 2 includes the rolling plate 21 and the transition arc surface of the rolling plate 21 and the supporting frame 22.
The rolling members 62 may be balls, rollers, or the like. The rolling elements 62 are rotatably connected to the holder 61 by means of a rotating shaft, the axis of which passes through the centers of the rolling elements. The raceway functions to limit the right and left offset of the rolling elements and guide the rolling elements 62 to roll linearly. However, if the cage 61 itself is provided with a structure for restricting the rolling elements from shifting left and right, the raceway can be eliminated.
In the rolling direction of the rolling members 62, the rolling members 62 may be arranged in one or more rows, one or more rolling members 62 being provided per row. In this way, the running gear 6 runs more stably.
The thrust device 5 comprises a motor and a lead screw, the lead screw comprises a lead screw connected with a motor shaft of the motor and a lead screw nut 51 in threaded connection with the outside of the lead screw, and the lead screw nut 51 is fixedly connected with or integrally formed with the retainer 61. The stationary part of the thrust unit 5 may be a housing of the motor, or may be an additional housing or mounting bracket 52 (as shown in fig. 6) of the thrust unit 5.
The screw may be, for example, a ball screw.
As shown in fig. 2 and fig. 3, a pin shaft mounting sleeve 221 is disposed at one end of the supporting frame 22 away from the rolling plate 21, the supporting pin shaft 4 is rotatably inserted into the pin shaft mounting sleeve 221, and two ends of the supporting pin shaft 4 are fixed on the transmission housing. Preferably, the two ends of the supporting pin 4 are fixed to the transmission housing by hinges.
In some alternative embodiments, the supporting pin 4 is press-fitted into the pin mounting sleeve 221, and both ends of the supporting pin 4 are rotatably connected to the transmission housing. For example, the two ends of the support pin 4 are pivotally connected to the transmission housing by hinges or bearings.
As shown in fig. 7 to 9, the clutch control mechanism further includes a guide shaft 8 and a release bearing bottom plate 9, the guide shaft 8 is inserted into the through hole 222, one end of the guide shaft 8 is fixed on the transmission housing, the release bearing 1 is sleeved on the guide shaft 8, the release bearing bottom plate 9 is fixedly connected to one end of the release bearing 1, the release bearing bottom plate 9 is hinged to the support frame 22, and the hinge axis of the release bearing bottom plate 9 and the support frame 22 is parallel to the axis of the support pin 4.
The release bearing bottom plate 9 is fixedly connected to one end of the release bearing 1, and the release bearing bottom plate 9 is hinged to the support frame 22, so that the integral structure of the release bearing 1 and the release bearing bottom plate 9 can rotate relative to the support frame 22, and the release bearing 1 can only slide along the guide shaft 8 and cannot rotate around the guide shaft 8.
The clutch control mechanism further comprises a support member 10, the support member 10 is fixed on the support frame 22, the release bearing base plate 9 is located between the support member 10 and the release bearing 1 in the axial direction of the guide shaft 8, an annular main body portion of the release bearing base plate 9 is connected with one end of the release bearing 1, a claw portion 91 is provided on the radially outer side of the release bearing base plate 9, the claw portion 91 of the release bearing base plate 9 is hinged on the support member 10, and the top surface of the support member 10 contacts and supports the claw portion 91 of the release bearing base plate 9. During the swinging of the executing frame 2, the release bearing 1 can always move along the axis of the guide shaft 8 during the pushing process through the continuous change of the contact part of the claw part 91 of the release bearing bottom plate 9 and the top surface of the supporting element 10.
In this embodiment, the claw 91 of the release bearing base plate 9 is hinged to the support element 10.
However, in alternative embodiments, it is also possible for other parts of the release bearing bottom plate 9 to be hinged to the support frame 22. Alternatively, the claw 91 of the release bearing base plate 9 is hinged to the support frame 22 at a location other than the support member 10.
Preferably, a guide shaft base 20 is connected to one end of the guide shaft 8, and the guide shaft base 20 is fixed to the transmission housing by bolts, thereby fixing the guide shaft 8 to the transmission housing.
As shown in fig. 8, the top surface of the supporting member 10 is a curved surface with a high middle and two low sides. Preferably, the support element 10 comprises a support block 101, a first leg 102 and a second leg 103, the top surface of the support block 101 cooperating with the claw 91 of the release bearing base plate 9. The first leg 101 and the second leg 102 are mounted on the support frame 22.
In some alternatives, the support element 10 may also be welded, riveted, etc. with the support frame 22.
In some alternatives, the support element 10 may also be integrally formed with the support frame 22 to simplify the assembly process.
Preferably, the support members 10 are provided in two, two of the support members 10 are located on diametrically opposite sides of the release bearing 1, and two of the claw portions 91 corresponding to the two support members 1010 are provided on a diametrically outer side of the release bearing base plate 9.
By arranging the supporting element 10 and designing the top surface of the supporting element 10 to be a cambered surface with a high middle part and two low sides, in the swinging process of the executing frame 2, the contact part of the claw part 91 of the release bearing bottom plate 9 and the top surface of the supporting element 10 is continuously changed, so that the release bearing 1 always moves along the axis of the guide shaft 8 in the pushed process, and the stress of each horizontal point of the contact of the clutch and the release bearing 1 is uniform.
The supporting element 10 can be made of plastic material with certain elasticity, so that the friction vibration and friction noise between the actuating frame 2 and the supporting element 10 and between the supporting element 10 and the release bearing 1 during the pushing process of the release bearing can be reduced.
The first embodiment operates as follows (taking a thrust device including a motor, a lead screw, and a thrust shaft as an example):
the motor rotates forward to rotate the lead screw in the thrust device 5, the retainer 61 is pushed to drive the rolling member 62 (e.g. roller) to roll forward along the raceway (from the first end to the second end of the raceway), the rolling member 62 pushes the executing frame 2 to rotate upward by contacting the bottom surface of the rolling plate end of the executing frame 2, taking the supporting pin 4 as a rotating shaft, and then the release bearing 1 is pushed upward to control the clutch to act.
When the motor is switched off, the release bearing 1 moves downwards and pushes the execution frame 2 to rotate downwards by taking the supporting pin shaft 4 as a rotating shaft due to the action of the return pressure of the diaphragm spring of the clutch, the rolling piece 62 is pushed to roll to the original position along the rolling way (roll from the second end to the first end of the rolling way) by the bottom surface of the rolling plate end of the execution frame 2, and the clutch control mechanism restores the original state to complete the return action of the clutch.
The clutch can be reset by another way, when the return pressure of the diaphragm spring of the clutch is not enough to return the rolling element 62 to the original position, the motor can be reversed to rotate the lead screw in the thrust device 5 reversely, and the rolling element 62 is driven to roll along the roller path to the original position (from the second end to the first end of the roller path) by pulling the retainer 61. The release bearing 1 moves downwards and pushes the execution frame 2 to rotate downwards by taking the supporting pin shaft 4 as a rotating shaft in cooperation with the return pressure of the clutch diaphragm spring, so that the execution frame 2 is restored to the original position, and the reset action of the clutch is completed.
It can be seen that the clutch control mechanism does not need to be provided with a resetting device and a damping device, so that the installation space of the resetting device and the damping device does not need to be reserved on the actuating frame 2, the design size of the actuating frame 2 can be smaller, and the space arrangement is easier.
According to the clutch control mechanism of the first embodiment of the present invention, the first end of the support frame 22 of the actuating frame 2 is connected (integrally formed or fixedly connected) to the rolling plate 21 of the actuating frame 2, the first end of the support frame 22 of the actuating frame 2 is rotatably connected to the transmission housing by the support pin 4, and the thrust device 5 of the driving device pushes the traveling device 6 thereof to travel in the direction defined by the travel guide 7 to apply a driving force to the rolling plate end of the actuating frame 2, so that the actuating frame 2 swings about the axis of the support pin 4, thereby pushing the release bearing 1 to move in the direction approaching or separating from the clutch to control the engagement or disengagement of the clutch. In the engaged state of the clutch, the driving device and the execution frame 2 limit mutually to provide resistance for preventing the execution frame 2 from swinging back, so that the clutch can still be kept in the engaged state after the driving force applied to the rolling plate end of the execution frame 2 is released or reduced. In this way, even when the driving force of the driving device is released or reduced in the engaged state of the clutch, the clutch can be maintained in the engaged state, and energy consumption can be reduced.
In addition, because the supporting pin shaft 4 and the rolling plate end (stressed part) of the executing frame 2 are positioned at two sides of the release bearing 1, the lever force arm is lengthened (the force arm of the driving force applied to the rolling plate end relative to the supporting pin shaft 4 is far larger than the force arm of the axial force of the release bearing 1 relative to the supporting pin shaft 4), so that the labor-saving effect is achieved, and the driving force requirement of the driving device is smaller. For example, when the drive device includes a motor, the requirements for the motor are low.
And this clutch control mechanism promotes running gear 6 through thrust device 5 and walks to exert drive power to the roll board end, drive and carry out the swing of frame 2 in order to control the clutch action, have the action fast, the mild characteristics that reset, be applicable to very much the normally closed clutch, in order to satisfy the fast, slow characteristics demand of combination of normally closed clutch separation.
In addition, the execution frame 2 comprises the rolling plate 21 and the supporting frame 22, and the rolling piece 62 is in contact with the bottom surface (cambered surface or inclined surface) of the rolling plate 21, so that the rolling piece 62 can push the rolling plate end of the execution frame 2 more conveniently, and the driving force is saved. In addition, the friction force is changed into rolling friction, so that the friction force is smaller, the energy loss is reduced, and the driving efficiency is improved.
The actuating rod and the actuating frame of the clutch operating device in the prior art are replaced by the actuating frame 2, the supporting frame 22 for placing and supporting the release bearing 1 is arranged on the supporting frame 22 of the actuating frame 2, and the supporting frame 22 serves as the actuating rod of the clutch operating device in the prior art, so that the integration degree of a clutch control mechanism is higher, the structure is simpler, and the space arrangement and the weight reduction are easier.
Second embodiment
Fig. 10 shows a clutch control mechanism according to a second embodiment of the present invention, which is different from the first embodiment in that the second end of the raceway extends below the bottom surface of the support frame 22, the rolling member 62 contacts the highest portion of the bottom surface of the rolling plate 21 when it is at the first end of the raceway, and the rolling member 62 contacts the bottom surface of the support frame 22 when it is at the second end of the raceway. The bottom surface of the supporting frame 22 and the bottom surface of the rolling plate 21 are in transition through an arc surface. When the rolling member 62 moves to the inflection point, the speed of the rolling member 62 is kept stable, the motor is controlled (a suitable driving force can be provided), and the clutch is kept engaged.
The arc surface protrudes toward the urging direction of the rolling member 62. The bottom surface of the supporting frame 22 and the bottom surface of the rolling plate 21 form an obtuse angle.
In the engaged state of the clutch, the rolling member 62 and the bottom surface of the supporting frame 22 limit each other to provide resistance to the swinging back of the executing frame 2, so that the clutch can still be maintained in the engaged state after the driving force applied to the rolling plate end of the executing frame 2 is released or reduced. In this way, even when the driving force of the driving device is released or reduced in the engaged state of the clutch, the clutch can be maintained in the engaged state, and energy consumption can be reduced.
In the second embodiment, the rolling plate end of the executing frame 2 includes the rolling plate 21, the transition arc surface between the rolling plate 21 and the supporting frame 22, and the part where the supporting frame is connected to the transition arc surface (the part is located on the side of the release bearing 1 away from the supporting pin 4).
Equivalently, on the basis of the first embodiment, the rolling way is lengthened to the bottom surface of the supporting frame 22, so that the rolling member 62 can be pushed to the lower part of the supporting frame 22 of the execution frame 2 by the thrust device 5, and the limit function of the thrust device 5 when the motor is powered off is increased.
When the motor rotates forward, the thrust device 5 is driven to rotate the lead screw in the thrust device 5, the retainer 61 is pushed to drive the rolling member 62 (e.g. roller) to roll forward along the raceway (from the first end to the second end of the raceway), the rolling member 62 pushes the executing frame 2 to rotate upward by contacting the bottom surface of the rolling plate 21 of the executing frame 2, the supporting pin shaft 4 serves as a rotating shaft, and the release bearing 1 is pushed upward to control the clutch to act. When the rolling member 62 rolls forward along the raceway to the maximum stroke, i.e., under the support frame 22 of the actuation frame 2 (from the first end to the second end of the raceway), the rolling member 62 is no longer in contact with the rolling plate 21. The rolling members 62 and the bottom surface of the support frame 22 are mutually limited to provide resistance to the swinging back of the executing frame 2. Thus, when the motor is powered off (the motor may not be powered off but the driving force is reduced), the rolling member 62 is not moved to the initial position by the thrust action of the bottom of the rolling plate 21 (or the motor reduces the driving force), but the rolling member 62 limits the rotation of the supporting frame 22 due to the supporting action of the rolling member 62 on the supporting frame 22, so that the clutch does not return to the original position but keeps the current action state, thereby achieving the limiting action on the clutch. When the clutch needs to be reset, the motor is reversed, the lead screw in the thrust device 5 rotates reversely, and the rolling piece 62 is driven to roll to the original position along the roller path (from the second end to the first end of the roller path) by pulling the retainer 61. The release bearing 1 moves downwards and pushes the support frame 22 of the execution frame 2 to rotate downwards by taking the support pin shaft as the center in cooperation with the return pressure of the diaphragm spring of the clutch, so that the execution frame 2 restores to the original position, and the reset action of the clutch is completed.
Third embodiment
Fig. 11 to 15 show a clutch control mechanism according to a third embodiment of the present invention, which is different from the first embodiment in that:
(1) the support element is an arc-shaped convex block 30, the arc-shaped convex block 30 is integrally formed on the top surface of the support frame 22, a limiting hole 301 is formed in the side surface outside the top surface of the arc-shaped convex block 30, a mounting hole 92 is formed in the claw part 91 of the release bearing bottom plate 9, the clutch control mechanism further comprises a clamp spring 40 clamped between the release bearing bottom plate 9 and the release bearing 1, and a clamp pin of the clamp spring 40 is inserted in the mounting hole 92 and the limiting hole 301 to limit axial displacement of the release bearing bottom plate 9 and the release bearing 1. I.e. the release bearing base plate 9 and the release bearing 1 cannot rotate about the guide shaft 8.
(2) The bottom surface of the supporting frame 22 and the bottom surface of the rolling plate 21 are transited by an arc surface 23. The bottom surface of the rolling plate 21 is an inclined surface or a cambered surface. The length of the raceway is designed such that the rolling element 62 contacts the highest portion of the bottom surface of the rolling plate 21 when it is at the first end of the raceway, and the rolling element 62 contacts the arc surface 23 when it is at the second end of the raceway.
The arc surface 23 protrudes toward the urging direction of the rolling member 62. The bottom surface of the supporting frame 22 and the bottom surface of the rolling plate 21 form an obtuse angle.
The rolling member 62 and the arc surface 23 limit each other to provide resistance to the rocking back of the actuation frame 2, so that the clutch can still be maintained in the engaged state after the driving force applied to the rolling plate end of the actuation frame 2 is reduced. In this way, even when the driving force of the driving device is reduced in the engaged state of the clutch, the clutch can be maintained in the engaged state, and energy consumption can be reduced.
In the third embodiment, the rolling plate end of the executing frame 2 comprises a rolling plate 21 and an arc surface 23.
As shown in fig. 11 and 15, in the third embodiment, the claw portion 91 of the release bearing base plate 9 is L-shaped, and the claw portion 91 is attached to the top surface and the outer side surface of the arc-shaped projection 30, so that the area of the attached surface is large. So that the arc-shaped projection 30 can better support the release bearing base plate 9 and the release bearing 1.
When the motor rotates forward, the thrust device 5 is driven to rotate the lead screw in the thrust device 5, the retainer 61 is pushed to drive the rolling member 62 (e.g. roller) to roll forward along the raceway (from the first end to the second end of the raceway), the rolling member 62 pushes the executing frame 2 to rotate upward by contacting the bottom surface of the rolling plate 21 of the executing frame 2, the supporting pin shaft 4 serves as a rotating shaft, and the release bearing 1 is pushed upward to control the clutch to act. When the rolling member 62 rolls forward along the raceway to the maximum stroke (to the second end of the raceway), the rolling member 62 is no longer in contact with the rolling plate 21 (in contact with the arc 23). At this time, the motor is still started but not rotated (the motor does not provide driving force or reduces the driving force), and the cambered surface 23 supports the rolling member 62 to maintain the current position to achieve the limiting effect on the clutch. When the clutch needs to be reset, the motor is reversed, the lead screw in the thrust device 5 rotates reversely, and the rolling piece 62 is driven to roll to the original position along the roller path (from the second end to the first end of the roller path) by pulling the retainer 61. The release bearing 1 moves downwards and pushes the support frame 22 of the execution frame 2 to rotate downwards by taking the support pin shaft 4 as the center in coordination with the return pressure of the diaphragm spring of the clutch, so that the execution frame 2 restores to the original position, and the return action of the clutch is completed.
In addition, in some other embodiments, the thrust device may be a cylinder, and an outer end of a piston rod of the cylinder is connected to the retainer.
In addition, in other embodiments, the thrust device is a hydraulic cylinder, and the outer end of a piston rod of the hydraulic cylinder is connected to the retainer.
In addition, the embodiment of the invention also provides a vehicle which comprises the clutch control mechanism of the embodiment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A clutch control mechanism, comprising:
separating the bearing;
the executing frame comprises a rolling plate and a supporting frame for placing and supporting the release bearing, the first end of the supporting frame is connected with the rolling plate, and the second end of the supporting frame is rotatably connected to the transmission shell through a supporting pin shaft; the bottom surface of the supporting frame and the bottom surface of the rolling plate are in transition through an arc surface;
the driving device applies driving force to the rolling plate end of the execution frame through the rolling piece and the rolling plate, so that the execution frame swings around the axis of the supporting pin shaft, and the release bearing is pushed to move towards or away from the clutch so as to control the engagement or the disengagement of the clutch;
in the engaging state of the clutch, the rolling piece and the cambered surface limit mutually to provide resistance for preventing the execution frame from swinging back, so that the clutch can still be kept in the engaging state after the driving force applied to the rolling plate end of the execution frame is released or reduced.
2. The clutch control mechanism of claim 1, wherein the support pin and the roller plate end of the actuator frame are located on opposite sides of the release bearing;
the axis direction of the supporting pin shaft is perpendicular to the walking direction of the walking device.
3. The clutch control mechanism according to claim 2, wherein the bottom surface of the rolling plate is a slope or a curved surface.
4. The clutch control mechanism according to claim 1, wherein the driving means includes a thrust means, a traveling means and a traveling guide means, the traveling means includes the rolling member, a top portion of the rolling member is in rolling contact with a bottom surface of the rolling plate, and the thrust means is configured to push the rolling member to travel in a direction defined by the traveling guide means to apply the driving force to the rolling plate end of the actuator frame.
5. The clutch control mechanism according to claim 4, wherein the running gear further comprises a cage, the running gear comprises a guide plate fixed on a transmission housing or a stationary part of the thrust gear, the guide plate is provided with a raceway, the rolling member is rotatably connected to the cage, the bottom of the rolling member is located in the raceway, the thrust gear drives the cage to move, so that the rolling member rolls along the raceway to apply a driving force to a rolling plate end of the actuator frame;
the rolling way is provided with a first end far away from the supporting pin shaft and a second end close to the supporting pin shaft, the rolling piece is in contact with the highest position of the bottom surface of the rolling plate when being positioned at the first end of the rolling way, the rolling piece is in contact with the lowest position of the bottom surface of the rolling plate when being positioned at the second end of the rolling way, and when the rolling piece rolls from the first end to the second end of the rolling way, the executing frame swings around the axis of the supporting pin shaft in the direction far away from the guide plate; when the rolling piece rolls from the second end to the first end of the roller path, the execution frame swings around the axis of the supporting pin shaft to the direction close to the guide plate.
6. The clutch control mechanism according to claim 5, wherein the thrust device comprises a motor and a lead screw, the lead screw comprises a lead screw connected with a motor shaft of the motor and a lead screw nut screwed outside the lead screw, and the lead screw nut is fixedly connected with or integrally formed with the retainer; alternatively, the first and second electrodes may be,
the thrust device is an air cylinder, and the outer end of a piston rod of the air cylinder is connected to the retainer; alternatively, the first and second electrodes may be,
the thrust device is a hydraulic cylinder, and the outer end of a piston rod of the hydraulic cylinder is connected to the retainer.
7. The clutch control mechanism according to claim 1, wherein a pin shaft mounting sleeve is disposed at an end of the support frame away from the rolling plate, the support pin shaft is rotatably inserted into the pin shaft mounting sleeve, and both ends of the support pin shaft are fixed to the transmission housing.
8. The clutch control mechanism according to claim 4, wherein the running gear includes a cage and a rolling member, the running gear includes a guide plate fixed on the transmission case or the stationary member of the thrust device, the guide plate is provided with a raceway, the rolling member is rotatably connected to the cage, the top of the rolling member contacts the bottom surface of the rolling plate, the bottom of the rolling member is located in the raceway, and the thrust device drives the cage to move so that the rolling member rolls along the raceway to apply a driving force to the rolling plate end of the actuator frame;
the rolling way is provided with a first end far away from the supporting pin shaft and a second end close to the supporting pin shaft, the second end of the rolling way extends to the lower part of the bottom surface of the supporting frame, the rolling piece is in contact with the highest position of the bottom surface of the rolling plate when being positioned at the first end of the rolling way, the rolling piece is in contact with the bottom surface of the supporting frame when being positioned at the second end of the rolling way, and when the rolling piece rolls from the first end to the second end of the rolling way, the executing frame swings around the axis of the supporting pin shaft in the direction far away from the guide plate; when the rolling piece rolls from the second end to the first end of the roller path, the execution frame swings around the axis of the supporting pin shaft to the direction close to the guide plate.
9. The clutch control mechanism according to claim 4, wherein the running gear includes a cage and a rolling member, the running gear includes a guide plate fixed on the transmission case or the stationary member of the thrust device, the guide plate is provided with a raceway, the rolling member is rotatably connected to the cage, the top of the rolling member contacts the bottom surface of the rolling plate, the bottom of the rolling member is located in the raceway, and the thrust device drives the cage to move so that the rolling member rolls along the raceway to apply a driving force to the rolling plate end of the actuator frame;
the rolling way is provided with a first end far away from the supporting pin shaft and a second end close to the supporting pin shaft, the rolling piece is in contact with the highest position of the bottom surface of the rolling plate when being positioned at the first end of the rolling way, the rolling piece is in contact with the cambered surface when being positioned at the second end of the rolling way, and when the rolling piece rolls from the first end to the second end of the rolling way, the executing frame swings around the axis of the supporting pin shaft in the direction far away from the guide plate; when the rolling piece rolls from the second end to the first end of the roller path, the execution frame swings around the axis of the supporting pin shaft to the direction close to the guide plate.
10. A vehicle characterized by comprising the clutch control mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910818153.XA CN112443589A (en) | 2019-08-30 | 2019-08-30 | Clutch control mechanism and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910818153.XA CN112443589A (en) | 2019-08-30 | 2019-08-30 | Clutch control mechanism and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112443589A true CN112443589A (en) | 2021-03-05 |
Family
ID=74735286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910818153.XA Pending CN112443589A (en) | 2019-08-30 | 2019-08-30 | Clutch control mechanism and vehicle |
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| CN (1) | CN112443589A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1744076A1 (en) * | 2005-04-28 | 2007-01-17 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Rocking lever actuator, in particular for actuating a clutch |
| CN102713328A (en) * | 2009-12-22 | 2012-10-03 | 舍弗勒技术股份两合公司 | Engagement system for clutch |
| CN103133690A (en) * | 2011-11-22 | 2013-06-05 | 舍弗勒技术股份两合公司 | Operating device used for clutch |
| CN103161840A (en) * | 2011-12-09 | 2013-06-19 | 舍弗勒技术股份两合公司 | Operation system with a lever actuator |
| DE102016218974A1 (en) * | 2015-10-01 | 2017-04-06 | Schaeffler Technologies AG & Co. KG | Lever system for actuating a clutch |
-
2019
- 2019-08-30 CN CN201910818153.XA patent/CN112443589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1744076A1 (en) * | 2005-04-28 | 2007-01-17 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Rocking lever actuator, in particular for actuating a clutch |
| CN102713328A (en) * | 2009-12-22 | 2012-10-03 | 舍弗勒技术股份两合公司 | Engagement system for clutch |
| CN103133690A (en) * | 2011-11-22 | 2013-06-05 | 舍弗勒技术股份两合公司 | Operating device used for clutch |
| CN103161840A (en) * | 2011-12-09 | 2013-06-19 | 舍弗勒技术股份两合公司 | Operation system with a lever actuator |
| DE102016218974A1 (en) * | 2015-10-01 | 2017-04-06 | Schaeffler Technologies AG & Co. KG | Lever system for actuating a clutch |
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