JP2016217410A - Vehicular damper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular damper device which suppresses wear due to slide between members.SOLUTION: A vehicular damper device includes: an input side plate 16 connected to an input shaft 12; an intermediate plate 18 in which torque transmission is possible between itself and the input side plate 16 via a spring 22; an output side plate 20 which is connected to an output shaft 14 and in which torque transmission between itself and the intermediate plate 18 is possible via the spring 22; and an annular member 32 for supporting the intermediate plate 18 so as to be relatively movable in the circumferential direction, on the inside in the radial direction. The annular member 32 is arranged further outside in the radial direction than the spring 22, and at one of an inner peripheral surface 32a of the annular member 32 and an outer peripheral surface 18a of the intermediate plate 18, a raceway is provided, and at the other, a slide part is provided. Thus, a contact area between the raceway and the slide part can be secured sufficiently, and a surface pressure between the intermediate plate 18 and the annular member 32 can be dispersed.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle damper device, and more particularly to an improvement for suppressing wear due to sliding between members.

  2. Description of the Related Art A vehicular damper device that transmits torque between an input shaft and an output shaft that rotate about a common axis is known. As one form of such a vehicle damper device, an input side plate connected to the input shaft, an intermediate plate capable of transmitting torque between the input side plate via a first elastic member, There has been proposed one including an in-line spring clutch disk including an output side plate connected to an output shaft and capable of transmitting torque to and from the intermediate plate via a second elastic member. For example, a lock-up damper device described in Patent Document 1 is an example.

JP 2010-216499 A

  In the conventional vehicle damper device as described above, a bush is provided between the intermediate plate and the intermediate thrust, and the centering of the intermediate plate is realized by the bush. However, in the vehicle damper device provided with the series spring clutch disk, it is difficult to ensure a sufficient contact area of the bush with respect to the intermediate thrust portion (area related to sliding during operation of the intermediate plate), and wear. Is concerned.

  The present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a vehicle damper device that suppresses wear caused by sliding between members.

  In order to achieve such an object, the gist of the present invention is a vehicular damper device that transmits torque between an input shaft and an output shaft that rotate about a common shaft center. An input side plate connected to the input shaft, an intermediate plate capable of transmitting torque between the input side plate via the first elastic member, and the output shaft connected to the output side plate via the second elastic member. An output side plate that is capable of transmitting torque to and from the intermediate plate, and an annular member that supports the intermediate plate on the radially inner side so as to be relatively movable in the circumferential direction. The first elastic member and the second elastic member are arranged on the outer side in the radial direction. One of the inner peripheral surface of the annular member and the outer peripheral surface of the intermediate plate has a track, and the other has a slide. It is characterized by having a moving part It is intended.

  In this case, the input side plate connected to the input shaft, the intermediate plate capable of transmitting torque between the input side plate via the first elastic member, and the output shaft are connected. An output side plate that is capable of transmitting torque to and from the intermediate plate via a second elastic member, and an annular member that supports the intermediate plate so as to be relatively movable in the circumferential direction on the radially inner side. The annular member is disposed radially outside the first elastic member and the second elastic member, and one of the inner peripheral surface of the annular member and the outer peripheral surface of the intermediate plate Since the track has a sliding portion on the other side, a sufficient contact area between the track and the sliding portion can be taken, and the surface between the intermediate plate and the annular member The pressure can be dispersed. That is, it is possible to provide a vehicle damper device that suppresses wear due to sliding between the intermediate plate and the annular member.

1 is a diagram schematically showing a configuration of a vehicular damper device that is a preferred embodiment of the present invention. FIG. It is a figure which abbreviate | omits and shows the structure of an input side plate etc. in the damper device for vehicles of FIG. FIG. 2 is a front view showing a state in which the intermediate plate is viewed from the axial direction in order to explain the configuration of the intermediate plate in the vehicle damper device of FIG. 1. FIG. 4 is a side view showing a state in which the intermediate plate shown in FIG. 3 is viewed in a direction indicated by an arrow IV.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Regarding the drawings used in the following description, the dimensional ratios of the respective parts are not necessarily drawn accurately.

  FIG. 1 is a diagram schematically showing a configuration of a vehicle damper device 10 (hereinafter simply referred to as a damper device 10), which is a preferred embodiment of the present invention, and a part thereof is cut away. The damper device 10 transmits torque between an input shaft 12 and an output shaft 14 that rotate about a common axis C. Preferably, it corresponds to a clutch damper that is provided in a dry single-plate friction clutch provided in a power transmission path between an engine as a drive source and a manual transmission as a transmission, and alleviates an impact caused by torque fluctuation. . That is, preferably, the input shaft 12 is coupled so as to be rotated integrally with the output shaft of the engine. The output shaft 14 is connected to be rotated integrally with the input shaft of the manual transmission.

  As shown in FIG. 1, the damper device 10 includes an input side plate 16, an intermediate plate 18, an output side plate 20, and a plurality (four in this embodiment) of springs 22 a, 22 b, 22 c, and 22 d (hereinafter referred to as “the side plate”). In the case where there is no particular distinction, it is simply referred to as a spring 22). That is, an inline spring type clutch disk having the input side plate 16, the intermediate plate 18, the output side plate 20, and the spring 22 as elements is provided.

  The input side plate 16 is provided coaxially with the output shaft 14 so as to be relatively rotatable with respect to the output shaft 14 about the axis. The input side plate 16 is provided with a friction member (facing) 24 on a surface facing the flywheel of the engine. Similarly, a friction member is provided at a position corresponding to the friction member 24 in the flywheel. As will be described later, when the input side plate 16 is clamped between the flywheel of the engine and the pressure plate, the input side plate 16 is moved to the input shaft by the frictional force of the friction member 24 and the like. 12 is connected so as to be rotated integrally therewith. The output side plate 20 is connected to be coaxial with the output shaft 14 and rotated integrally with the output shaft 14. The output side plate 20 is attached to the output shaft 14 by, for example, spline fitting.

  The plurality of springs 22 are coil springs such as torsion springs and cone springs, and are preferably arranged at substantially equal intervals in the circumferential direction of the input side plate 16 and the like. The spring 22 is interposed between the input side plate 16 and the intermediate plate 18. For example, the input side plate 16 is formed with accommodating portions 26 for accommodating the springs 22 at positions corresponding to the plurality of springs 22, respectively. The accommodating portion 26 is formed by penetrating in the thickness direction of the input side plate 16 and a raised portion 26a formed by raising a part of the input side plate 16 according to the shape of the side peripheral surface of the spring 22. Window portion 26b. The plurality of springs 22 are respectively housed in the plurality of housing portions 26 in a state in which a part thereof is fitted inside the raised portion 26a.

  The intermediate plate 18 includes a contact portion 28 at a position corresponding to one end portion in the contraction direction of the spring 22. Preferably, a plurality (two in the present embodiment) of the contact portions 28 are provided at substantially equal intervals in the circumferential direction of the intermediate plate 18. The spring 22 is supported in each housing portion 26 so that the expansion / contraction direction thereof coincides with the tangential direction of relative rotation of the input side plate 16 and the intermediate plate 18. In such a configuration, the relative rotation between the input side plate 16 and the intermediate plate 18 causes the spring 22 to abut one end portion in the circumferential direction of the housing portion 26, and in the intermediate plate 18. It is made to contact | abut to the said contact part 28, and it is made to act as a shock absorbing material by compressively deforming between them. That is, torque transmission between the input side plate 16 and the intermediate plate 18 is enabled via the spring 22.

  FIG. 2 is a diagram in which the configuration of the input side plate 16 and the like is omitted in the damper device 10. As shown in FIG. 2, the output side plate 20 includes a contact portion 30 at a position corresponding to one end portion in the contraction direction of the spring 22. Preferably, a plurality (two in the present embodiment) of the contact portions 30 are provided at substantially equal intervals in the circumferential direction of the output side plate 20. Preferably, the plurality of contact portions 30 in the output side plate 20 are disposed at substantially equal intervals between the plurality of contact portions 28 in the intermediate plate 18. That is, the spring 22 is configured to be brought into contact with the contact portion 28 of the intermediate plate 18 at one end and the contact portion 30 of the output side plate 20 at the other end. . In such a configuration, the spring 22 is compressed between the contact portion 28 of the intermediate plate 18 and the contact portion 30 of the output side plate 20 by the relative rotation of the intermediate plate 18 and the output side plate 20. It is made to act as a shock absorbing material by being deformed. That is, torque can be transmitted between the intermediate plate 18 and the output side plate 20 via the spring 22.

  In the damper device 10, when torque in a direction to rotate the input side plate 16 clockwise with respect to the output shaft 14 as viewed in FIG. 1 is input from the input shaft 12 to the input side plate 16. The springs 22a and 22c are compressed and deformed between the accommodating portion 26 in the input side plate 16 and the abutting portion 28 in the intermediate plate 18. The springs 22 b and 22 d are compressed and deformed between the contact portion 28 in the intermediate plate 18 and the contact portion 30 in the output side plate 20. In such an embodiment, torque is transmitted between the input side plate 16 and the intermediate plate 18 via the springs 22a and 22c, and the intermediate plate 18 and the intermediate plate 18 via the springs 22b and 22d. Torque is transmitted to and from the output side plate 20. That is, the springs 22a and 22c function as a first elastic member, and the springs 22b and 22d function as a second elastic member, respectively.

  When a torque in a direction in which the input side plate 16 is rotated counterclockwise with respect to the paper surface of FIG. 1 with respect to the output shaft 14 is input from the input shaft 12 to the input side plate 16, the springs 22b and 22d. Is compressed and deformed between the accommodating portion 26 in the input side plate 16 and the abutting portion 28 in the intermediate plate 18. The springs 22 a and 22 c are compressed and deformed between the contact portion 28 in the intermediate plate 18 and the contact portion 30 in the output side plate 20. In such an embodiment, torque is transmitted between the input side plate 16 and the intermediate plate 18 via the springs 22b and 22d, and the intermediate plate 18 and the intermediate plate 18 via the springs 22a and 22c. Torque is transmitted to and from the output side plate 20. That is, the springs 22b and 22d function as a first elastic member, and the springs 22a and 22c function as a second elastic member, respectively. That is, in the present embodiment, the first elastic member in which the spring 22 is interposed between the input side plate 16 and the intermediate plate 18 in accordance with the direction of the torque input to the input side plate 16. And functions as a second elastic member interposed between the intermediate plate 18 and the output side plate 20.

  In the clutch provided with the damper device 10 configured as described above, for example, in a state where a clutch pedal (not shown) is not depressed, the friction member 24 provided on the input side plate 16 Between the flywheel and a pressure plate (not shown). In this state, the driving force output from the engine is transmitted to the input side plate 16 via the flywheel and the input shaft 12. That is, a power transmission path between the input shaft 12 and the output shaft 14 is connected. In a state where a clutch pedal (not shown) is depressed, the friction member 24 provided on the input side plate 16 is separated from the flywheel. In this state, the driving force output from the engine is not transmitted to the input side plate 16. That is, the power transmission path between the input shaft 12 and the output shaft 14 is blocked. Alternatively, the transmission torque between the input side plate 16 and the flywheel according to the frictional force between the input side plate 16 (friction member 24) and the flywheel according to the depression amount of the clutch pedal. (Torque capacity) is changed between 0 and the maximum value. That is, a so-called slip engagement (half-engagement) state is established.

  As shown in FIG. 2, the damper device 10 of the present embodiment includes an annular member 32. The annular member 32 includes an inner peripheral surface 32a having substantially the same diameter as the outer peripheral surface of the intermediate plate 18 (that is, the outer peripheral surface of the contact portion 28), and is configured in a cylindrical shape (annular). The annular member 32 is preferably fixed integrally to the output side plate 20. For example, as shown in FIG. 2, the outer peripheral surface of the annular member 32 is formed to be the same cylindrical surface as the outer peripheral surface of the output side plate 20. The annular member 32 is disposed on the radially outer side than the spring 22. The annular member 32 is provided coaxially with the intermediate plate 18 and radially outside the intermediate plate 18. In other words, the intermediate plate 18 is provided on the radially inner side of the annular member 32. The outer peripheral surface 18 a of the intermediate plate 18 and the inner peripheral surface 32 a of the annular member 32 are opposed to each other so that the intermediate plate 18 is fitted on the inner peripheral side of the annular member 32. ing. With this configuration, the annular member 32 supports the intermediate plate 18 provided on the radially inner side so as to be relatively movable (relatively rotatable) in the circumferential direction.

  FIG. 3 is a front view showing a state in which the intermediate plate 18 is viewed from the direction of the axis C in order to explain the configuration of the intermediate plate 18. FIG. 4 is a side view showing the intermediate plate 18 shown in FIG. 3 as viewed in the direction indicated by the arrow IV. As shown in FIGS. 3 and 4, the intermediate plate 18 includes a connecting portion 34 that connects the plurality of contact portions 28 to each other. In other words, the plurality of contact portions 28 are connected to each other by the connecting portion 34. As shown in FIG. 3, the connecting portion 34 is formed in a ring shape from a thin plate-like member in a front view. That is, it is configured in a disc shape having a hole at the center. As shown in FIG. 4, the connecting portion 34 is integrally provided at one end of the abutting portion 28 in the direction of the axis C. Preferably, the outer peripheral surface 18a of the contact portion 28 is provided so as to be radially outward from the outer peripheral edge of the connecting portion 34.

  As described above, the annular member 32 functions as a support member that supports the intermediate plate 18 on the inner side in the radial direction so as to be relatively movable in the circumferential direction. The annular member 32 is provided integrally with the output side plate 20. The outer peripheral surface 18a of the intermediate plate 18 and the inner peripheral surface 32a of the annular member 32 are opposed to each other so as to be slid relative to each other. In the damper device 10 thus configured, one of the inner peripheral surface 32a of the annular member 32 and the outer peripheral surface 18a of the intermediate plate 18 functions as a track, and the other functions as a sliding portion. In the configuration of this embodiment shown in FIG. 1 and the like, the inner peripheral surface 32a of the annular member 32 functions as a track, and the outer peripheral surface 18a of the intermediate plate 18 functions as a sliding portion. Preferably, a concave groove extending in the circumferential direction is formed on the inner peripheral surface 32a of the annular member 32 as the track. On the outer peripheral surface 18a of the intermediate plate 18, a convex portion extending in the circumferential direction is formed as the sliding portion. With this configuration, the central axis of the intermediate plate 18 is made to coincide with the central axis of the output side plate 20. That is, the intermediate plate 18 is rotated such that the intermediate plate 18 can be rotated around a common axis C with the input shaft 12, the output shaft 14, the input side plate 16, the output side plate 20, and the like. Centering is realized.

  According to the present embodiment, the intermediate plate capable of transmitting torque between the input side plate 16 connected to the input shaft 12 and the input side plate 16 via the spring 22 as the first elastic member. 18 and an output side plate 20 connected to the output shaft 14 and capable of transmitting torque to and from the intermediate plate 18 via the spring 22 as a second elastic member. An annular member 32 that supports the plate 18 so as to be relatively movable in the circumferential direction, and the annular member 32 is disposed radially outside the spring 22, and the inner circumferential surface of the annular member 32 32a and the outer peripheral surface 18a of the intermediate plate 18 are provided with a track on one side and a sliding portion on the other side, so that the contact area between the track and the sliding portion is sufficient. It can take, it can be distributed surface pressure between the intermediate plate 18 and the annular member 32. Furthermore, even when grease is supplied between the track and the sliding portion, the grease can be easily supplied to the contact surfaces, so that wear with time can be efficiently reduced. That is, it is possible to provide the damper device 10 that suppresses wear due to sliding between the intermediate plate 18 and the annular member 32.

  In the intermediate plate 18, the abutting portions 28 are connected to each other by the connecting portions 34, so that the inner peripheral surface of the annular member 32 is caused by the centrifugal force accompanying the rotation of the intermediate plate 18. The pressing load of the abutting portion 28 against 32a can be canceled.

  The preferred embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention. To be implemented.

  10: vehicle damper device, 12: input shaft, 14: output shaft, 16: input side plate, 18: intermediate plate, 18a: outer peripheral surface (sliding part), 20: output side plate, 22: spring (first Elastic member, second elastic member), 32: annular member, 32a: inner peripheral surface (orbit), C: axial center

Claims (1)

A vehicle damper device that transmits torque between an input shaft and an output shaft that rotate about a common axis,
An input side plate connected to the input shaft;
An intermediate plate capable of transmitting torque to and from the input side plate via a first elastic member;
An output side plate connected to the output shaft and capable of transmitting torque to and from the intermediate plate via a second elastic member;
An annular member that supports the intermediate plate so as to be relatively movable in the circumferential direction on the radially inner side, and
The annular member is disposed radially outside the first elastic member and the second elastic member,
One of the inner peripheral surface of the annular member and the outer peripheral surface of the intermediate plate is provided with a track, and the other is provided with a sliding portion.

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