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CN-114542662-B - Vibration damper with clutch

CN114542662BCN 114542662 BCN114542662 BCN 114542662BCN-114542662-B

Abstract

The invention relates to a vibration damper with a clutch. The vibration damping device includes a flywheel, a damper output flange arranged coaxially with the flywheel, and a vibration damping spring abutted between the flywheel and the damper output flange in a rotational direction of the vibration damping device so as to be able to transmit torque between the flywheel and the damper output flange. The damping device further comprises a clutch disk which is arranged coaxially with the damper output flange, is axially positioned on the side of the damper output flange facing away from the flywheel, and can be axially abutted against the damper output flange to transmit torque between the damper output flange and the clutch disk, or can be separated from the damper output flange to disconnect torque transmission between the damper output flange and the clutch disk. Wherein the damper output flange and the clutch disc can constitute two parallel torque transmission ports of the damper device. The vibration damper of the present invention has compact layout.

Inventors

  • XIAO RONGTING
  • CHEN GUANGLU

Assignees

  • 舍弗勒技术股份两合公司

Dates

Publication Date
20260512
Application Date
20201124

Claims (9)

  1. 1. A vibration damping device having a clutch, comprising: A flywheel (3); A damper output flange (5) arranged coaxially with the flywheel (3), and A damper spring (4) that is abutted between the flywheel (3) and the damper output flange (5) in the rotational direction of the damper device, so that torque can be transmitted between the flywheel (3) and the damper output flange (5); It is characterized in that the method comprises the steps of, The vibration damping device further comprises a clutch disc (7) coaxially arranged with the vibration damper output flange (5), wherein the clutch disc (7) is axially positioned on the side of the vibration damper output flange (5) facing away from the flywheel (3) and can be axially abutted to the vibration damper output flange (5) to transmit torque between the vibration damper output flange (5) and the clutch disc (7) or separated from the vibration damper output flange (5) to disconnect torque transmission between the vibration damper output flange (5) and the clutch disc (7); The damper output flange (5) and the clutch disc (7) can form two parallel torque transmission ports of the damper device, the damper device further comprises a thrust bearing (10) arranged between the flywheel (3) and the damper output flange (5), and the damper output flange (5) is axially supported on the flywheel (3) through the thrust bearing (10).
  2. 2. Damping device according to claim 1, characterized in that it further comprises a base flange (2) fixed to the flywheel (3), the thrust bearing (10) abutting indirectly the flywheel (3) through the base flange (2), the thrust bearing (10) comprising a first bearing ring abutting the flywheel (3) and a second bearing ring abutting the damper output flange (5), the base flange (2) radially constraining the first bearing ring of the thrust bearing (10).
  3. 3. Damping device according to claim 2, further comprising a damper flange hub (12) fixedly connected to the damper output flange (5), the damper flange hub (12) radially constraining the second bearing ring.
  4. 4. A vibration damping device according to any one of claims 1-3, characterized in that the vibration damping device further comprises an engagement loading mechanism located axially on the side of the clutch disc (7) facing away from the damper output flange (5), which engagement loading mechanism is capable of pushing the clutch disc (7) axially against the damper output flange (5).
  5. 5. Damping device according to claim 4, characterized in that it further comprises a clutch cover (6) fixedly connected to the damper output flange (5), at least a portion of the clutch disc (7) being axially located between the damper output flange (5) and the clutch cover (6), the engagement loading mechanism being axially abuttable between the clutch cover (6) and the clutch disc (7).
  6. 6. Damping device according to claim 5, characterized in that the clutch cover (6) is fixedly connected to the damper output flange (5) radially outside the clutch disc (7), the at least a portion of the clutch disc (7) extending from radially inside outwards between the damper output flange (5) and the clutch cover (6).
  7. 7. Damping device according to claim 4, characterized in that it further comprises a pressure plate (9) axially between the engagement loading mechanism and the clutch disc (7), the engagement loading mechanism being able to axially abut the clutch disc (7) by means of the pressure plate (9).
  8. 8. Hybrid device comprising a first drive shaft (13), a second drive shaft (14) and a vibration damping device according to any one of claims 1 to 7, the damper output flange (5) connecting one of the first drive shaft (13) and the second drive shaft (14), the clutch disc (7) connecting the other of the first drive shaft (13) and the second drive shaft (14).
  9. 9. Hybrid device according to claim 8, characterized in that the vibration damping device further comprises a clutch flange hub (11) and a damper flange hub (12), the first drive shaft (13) is a hollow shaft, the second drive shaft (14) is located inside the first drive shaft (13), the damper output flange (5) is connected to the second drive shaft (14) through the damper flange hub (12), and the clutch disc (7) is connected to the first drive shaft (13) through the clutch flange hub (11).

Description

Vibration damper with clutch Technical Field The invention relates to the technical field of vehicles. In particular, the invention relates to a vibration damping device with a clutch. Background In the current society with increasingly severe environmental and energy problems, new energy vehicles are receiving increasing attention from the industry. Among the various new energy vehicles of the present, a hybrid vehicle that uses an internal combustion engine and an electric motor to drive together is a common type. The layout of the hybrid vehicle can be generally divided according to the arrangement position of the electric machine in the drive train. For example, P1 refers to a layout in which the motor is disposed after the engine and before the clutch, and P3 refers to a layout in which the motor is disposed at the output of the transmission. For vehicles with P1 motors, in particular hybrid vehicles employing p1+p3 layout, it is often a trend to integrate clutches with dampers in order to reduce the layout size of the drive train. In such a drive train, the clutch is typically integrated in a dual mass flywheel type (DMF) damper with a dual torque output hub. For example, CN 108138900A and CN 107110286A, etc. disclose designs typical in the prior art that integrate clutches with dual mass flywheel-type dampers. The clutch is mounted on the secondary flywheel mass at the output of the damper, in particular on the side of the secondary flywheel mass facing the outside of the damper. This results in a great increase in the axial dimension of the damper after the clutch is integrated into the damper, and increases the production cost. Disclosure of Invention The object of the present invention is to provide a damping device with a clutch that is compact in design. The above-mentioned technical problem is solved by a vibration damping device with a clutch according to the invention. The vibration damping device includes a flywheel, a damper output flange arranged coaxially with the flywheel, and a vibration damping spring abutted between the flywheel and the damper output flange in a rotational direction of the vibration damping device so as to be able to transmit torque between the flywheel and the damper output flange. The damping device further comprises a clutch disc coaxially arranged with the damper output flange, wherein the clutch disc is axially positioned on the side of the damper output flange, which is away from the flywheel, and can be axially abutted against the damper output flange to transmit torque between the damper output flange and the clutch disc, or separated from the damper output flange to disconnect torque transmission between the damper output flange and the clutch disc. Wherein the damper output flange and the clutch disc can constitute two parallel torque transmission ports of the damper device. In such a damper device, the flywheel may be connected as one torque transmission port of the damper device to, for example, an output shaft of the engine, while the clutch disc and the damper output flange may be connected as two parallel torque transmission ports opposite the flywheel to, for example, an output shaft of the electric machine and an input shaft of the transmission, respectively. The flywheel may act as a torque input to the damper device and the clutch disc and damper output flange may act as two parallel torque outputs to the damper device when torque is transferred from the engine to the transmission, and the flywheel may act as a torque output to the damper device and the clutch disc and damper output flange may act as two parallel torque inputs to the damper device when torque is transferred from the transmission to the engine. In other words, two parallel torque transmission paths can be formed between the flywheel and the clutch disk, and between the flywheel and the damper output flange. In a transmission path for transmitting torque through the clutch disc, the clutch is constituted by a damper output flange and the clutch disc which can be selectively engaged, so that the engagement relationship of the clutch disc and the damper output flange can be changed as needed to control the on and off of the transmission path through the clutch. The connection between the damper output flange and the clutch plate is selective in that the clutch plate can be abutted against the damper output flange when torque is desired to be transmitted between the damper output flange and the clutch plate, with the clutch in an engaged condition to be able to transmit torque by, for example, friction or form fit, and the clutch plate can be disengaged from the damper output flange when torque is not desired to be transmitted between the damper output flange and the clutch plate, with the clutch in a disengaged condition to be unable to transmit torque. This means that the clutch of the vehicle drive train between the damper and the transmission is integrated into the damper device. In