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CN-224214633-U - Shock absorber and vehicle

CN224214633UCN 224214633 UCN224214633 UCN 224214633UCN-224214633-U

Abstract

The utility model relates to a vibration absorber and a vehicle, wherein the vibration absorber is used for damping vibration of a transmission shaft and comprises a first mass block, a second mass block, an elastic piece and a connecting disc used for connecting the transmission shaft, the elastic piece comprises a first elastic part and a plurality of second elastic parts which are arranged at intervals along the circumferential direction of the connecting disc, the first elastic part is wrapped on the outer periphery of the first mass block and connected with the inner periphery of the connecting disc so that the inner periphery of the connecting disc is connected with the first mass block through the first elastic part, the second elastic part is arranged between the inner periphery of the second mass block and the outer periphery of the connecting disc, and the outer periphery of the connecting disc is connected with the second mass block through the second elastic part. The utility model can attenuate the bending vibration and the torsional vibration of the transmission shaft at the same time, so that the vibration of the transmission shaft is greatly eliminated, the kinetic energy loss is reduced, the transmission shaft can transmit more kinetic energy, and the working efficiency of the transmission shaft is improved.

Inventors

  • QIAN XUEPENG
  • WU ZHOU
  • SUN HONGFEI
  • GUO JIANWEI
  • WANG YUE
  • YU YONGQIAN
  • SUN JUNZHU

Assignees

  • 北汽福田汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20250523

Claims (10)

  1. 1. A vibration absorber for damping vibration of a transmission shaft is characterized by comprising a first mass block (1), a second mass block (2), an elastic member (3) and a connecting disc (4) for connecting the transmission shaft, wherein the elastic member (3) comprises a first elastic part (31) and a plurality of second elastic parts (32) which are spaced along the circumferential direction of the connecting disc (4); The first elastic part (31) is wrapped on the outer periphery of the first mass block (1) and is connected with the inner periphery of the connecting disc (4); The second elastic portion (32) is connected between the inner periphery of the second mass (2) and the outer periphery of the connecting disc (4).
  2. 2. The vibration absorber according to claim 1, wherein a plurality of connection holes (41) are provided on the land (4), the plurality of connection holes (41) being distributed at intervals along the circumferential direction of the land (4), the connection holes (41) being conducted in the radial direction of the land (4); The elastic piece (3) further comprises a connecting portion (33), the connecting portion (33) is respectively arranged corresponding to the second elastic portion (32) and the connecting hole (41), the connecting portion (33) is arranged through the corresponding connecting hole (41), one end of the connecting portion (33) is connected with the first elastic portion (31), and the other end of the connecting portion (33) is connected with the corresponding second elastic portion (32).
  3. 3. The vibration absorber according to claim 1, characterized in that a plurality of limit grooves (42) are provided on the outer periphery of the connecting disc (4), the notch of the limit groove (42) being directed toward the inner periphery of the second mass block (2); The second elastic part (32) is arranged corresponding to the limit groove (42), and at least part of the second elastic part (32) is embedded in the corresponding limit groove (42).
  4. 4. The shock absorber according to claim 1, further comprising a limiting plate (5), an axis of the inscribed cylindrical surface of the limiting plate (5) coinciding with an axis of the inscribed cylindrical surface of the second elastic portion (32); the limiting plate (5) is arranged between the connecting disc (4) and the second mass block (2) along the radial direction of the connecting disc (4); Wherein the limiting plate (5) is arranged between at least two adjacent second elastic parts (32).
  5. 5. The vibration absorber according to claim 4, wherein the connecting disc (4) includes a plurality of protruding portions (43), and a limiting groove (42) is formed between two adjacent protruding portions (43); at least part of the second elastic part (32) is embedded in the limit groove (42); Along the radial direction of the connecting disc (4), the limiting plate (5) is in clearance fit between the protruding part (43) and the inner periphery of the second mass block (2).
  6. 6. The vibration absorber according to claim 4, wherein the limiting plate (5) is provided with a through hole (51) penetrating along the radial direction of the connecting disc (4).
  7. 7. The vibration absorber according to claim 1, wherein the first elastic portion (31) is provided with annular grooves (311) on opposite sides in the axial direction of the land (4).
  8. 8. Vibration absorber according to claim 1, wherein the surface of the connection disc (4) protrudes from the surface of the first elastic part (31) and the first mass (1) in the axial direction of the connection disc (4).
  9. 9. The vibration absorber according to claim 1, wherein at least one set of mounting units (44) is provided on the land (4), each set of mounting units (44) including first mounting holes (441), second mounting holes (442), third mounting holes (443), and fourth mounting holes (444) arranged at uniform intervals along a circumferential direction of the land (4); The first mounting hole (441), the second mounting hole (442), the third mounting hole (443), and the fourth mounting hole (444) are all penetrated along the axial direction of the connecting disc (4).
  10. 10. A vehicle comprising a drive shaft and a vibration absorber according to any one of claims 1 to 9; The connecting disc (4) of the vibration absorber is connected with the transmission shaft.

Description

Shock absorber and vehicle Technical Field The present utility model relates to a vehicle accessory, and more particularly, to a vibration absorber and a vehicle. Background The transmission shaft is an important part for transmitting power in a vehicle transmission system, and transmits power of an engine to wheels together with a gearbox and a drive axle to enable the vehicle to generate driving force. When the current transmission shaft transmits kinetic energy, the vibration damper can eliminate torsional vibration of the transmission shaft, however, the kinetic energy transmitted by the transmission shaft still has the problem of vibration consumption. Disclosure of utility model The embodiment of the utility model provides a vibration absorber and a vehicle, which are used for solving the technical problems that the kinetic energy transmitted by a transmission shaft in the related technology is consumed by vibration. In order to solve the problems, the utility model discloses a vibration absorber for damping vibration of a transmission shaft, comprising a first mass block, a second mass block, an elastic piece and a connecting disc for connecting the transmission shaft, wherein the elastic piece comprises a first elastic part and a plurality of second elastic parts which are spaced along the circumferential direction of the connecting disc; The first elastic part is wrapped on the outer periphery of the first mass block and is connected with the inner periphery of the connecting disc; The second elastic portion is connected between an inner periphery of the second mass and an outer periphery of the land. Optionally, a plurality of connection holes are formed in the connecting disc, the connection holes are distributed at intervals along the circumferential direction of the connecting disc, and the connection holes are communicated along the radial direction of the connecting disc; The elastic piece further comprises a connecting part, the connecting part is respectively arranged corresponding to the second elastic part and the connecting hole, the connecting part penetrates through the corresponding connecting hole, one end of the connecting part is connected with the first elastic part, and the other end of the connecting part is connected with the corresponding second elastic part. Optionally, a plurality of limit grooves are formed in the periphery of the connecting disc, and the notch of each limit groove faces the inner periphery of the second mass block; The second elastic part is arranged corresponding to the limiting groove, and at least part of the second elastic part is embedded in the corresponding limiting groove. Optionally, the vibration absorber further comprises a limiting plate, and the axis of the inscribed cylindrical surface of the limiting plate coincides with the axis of the inscribed cylindrical surface of the second elastic part; the limiting plate is arranged between the connecting disc and the second mass block along the radial direction of the connecting disc; Wherein the limiting plate is arranged between at least two adjacent second elastic parts. Optionally, the connecting disc comprises a plurality of protruding parts, and a limit groove is formed between two adjacent protruding parts; at least part of the second elastic part is embedded in the limit groove; And the limiting plate is in clearance fit between the protruding part and the inner periphery of the second mass block along the radial direction of the connecting disc. Optionally, a through hole penetrating along the radial direction of the connecting disc is formed in the limiting plate. Alternatively, the first elastic portion is provided with annular grooves on opposite sides of the connecting disc in an axial direction. Optionally, along an axial direction of the connection disc, a surface of the connection disc protrudes from a surface of the first elastic portion and the first mass. Optionally, at least one group of mounting units is arranged on the connecting disc, and each group of mounting units comprises a first mounting hole, a second mounting hole, a third mounting hole and a fourth mounting hole which are uniformly arranged at intervals along the circumferential direction of the connecting disc; The first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole are all communicated along the axial direction of the connecting disc. In a second aspect, the utility model also discloses a vehicle, which comprises a transmission shaft and the vibration absorber; The connecting disc of the vibration absorber is connected with the transmission shaft. The embodiment of the utility model has the following advantages: In the embodiment of the utility model, the connecting disc is connected with the transmission shaft, and the first elastic part is wrapped on the outer periphery of the first mass block and is connected with the inner periphery of the connecting disc, so that