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CN-224229131-U - Transmission assembly with damping type clutch structure

CN224229131UCN 224229131 UCN224229131 UCN 224229131UCN-224229131-U

Abstract

The utility model discloses a transmission assembly with a damping type clutch structure, which comprises a transmission shaft, wherein a rotary transmission part capable of rotating relative to the transmission shaft in the axial direction is connected to the transmission shaft, a clutch part positioned at one side of the rotary transmission part is also connected to the transmission shaft, and the clutch part is connected to the transmission shaft in a sliding way along the axial direction and can rotate along with the transmission shaft, so that the clutch part can be abutted against or separated from the rotary transmission part in the axial direction, an elastic element capable of providing a pretightening force to push the clutch part to be abutted against the rotary transmission part is also arranged between the transmission shaft and the clutch part, and a clutch structure capable of enabling the clutch part to be abutted against and transmitted when the torque of the rotary transmission part and the clutch part is smaller than a preset value and enabling the clutch part to be separated from the clutch part when the torque of the rotary transmission part and the clutch part are larger than the preset value is arranged between the rotary transmission part and the clutch part.

Inventors

  • Zhu Shupin

Assignees

  • 中山市粤为科技有限公司

Dates

Publication Date
20260512
Application Date
20250611

Claims (9)

  1. 1. The transmission assembly with the damping type clutch structure is characterized by comprising a transmission shaft (1), wherein a rotary transmission part (2) capable of axially rotating relative to the transmission shaft is connected to the transmission shaft (1), a clutch part (3) positioned on one side of the rotary transmission part (2) is further connected to the transmission shaft (1), the clutch part (3) is connected to the transmission shaft (1) in an axial sliding mode and can rotate along with the transmission shaft (1), so that the clutch part (3) can axially lean against or be far away from the rotary transmission part (2), an elastic element (4) capable of providing a pretightening force to push the clutch part (3) to lean against the rotary transmission part (2) is further arranged between the transmission shaft (1) and the clutch part (3), and a clutch structure (5) capable of enabling the clutch part (2) to lean against and be separated from the clutch part (3) when the torque is smaller than a preset value.
  2. 2. The transmission assembly with the damping clutch structure according to claim 1, wherein the clutch structure (5) comprises a plurality of convex teeth (31) which are arranged on the clutch member (3) and protrude towards the rotary transmission member (2), and tooth grooves (21) which are arranged on the rotary transmission member (2) and can be used for inserting the convex teeth (31).
  3. 3. The transmission assembly with the damping clutch structure according to claim 2, wherein the convex teeth (31) and the tooth grooves (21) extend along the radial direction and are uniformly distributed along the circumferential direction.
  4. 4. The transmission assembly with the damping clutch structure according to claim 2, wherein the cross section of the convex teeth (31) is triangular or semicircular, and the cross section of the tooth grooves (21) is matched with the convex teeth (31).
  5. 5. The transmission assembly with the damping clutch structure according to claim 1, wherein the rotary transmission member (2) is a gear member, and the outer peripheral edge of the rotary transmission member is provided with gear teeth (22) for meshing transmission with an external gear.
  6. 6. The transmission assembly with the damping clutch structure according to claim 1, wherein the transmission shaft member (1) is provided with a first shaft section (11) for connecting the clutch member (3), the clutch member (3) is provided with a first assembly hole (30) for the first shaft section (11) to pass through, so that the clutch member (3) can axially slide, the first shaft section (11) is provided with a limiting structure (111) capable of preventing the clutch member (3) from rotating, and the first assembly hole (30) is matched with the first shaft section (11) in shape.
  7. 7. The transmission assembly with the damping clutch structure according to claim 6, wherein the transmission shaft member (1) is provided with a first shaft shoulder (12) on the first shaft section (11), and the elastic element (4) is arranged between the first shaft shoulder (12) and the clutch member (3).
  8. 8. The transmission assembly with a damping clutch structure according to any one of claims 1-7, wherein the elastic element (4) is an integral structure made of elastic plastic or rubber, or the elastic element (4) is a spring, a spring pad or a wave pad.
  9. 9. The transmission assembly with the damping clutch structure according to any one of claims 1 to 7, wherein the transmission shaft member (1) is an integral structure made of a metal material, and the rotary transmission member (2) is an integral structure made of a plastic material, a metal material or a plastic-metal composite body.

Description

Transmission assembly with damping type clutch structure Technical Field The utility model particularly relates to a transmission assembly with a damping clutch structure. Background In the prior art, a small motor is widely used in various electric devices, and a transmission structure for transmitting rotation power generated by a rotor to an output shaft is generally arranged in the small motor. The transmission structure generally includes one or more transmission gears for effecting speed and torque conversion and transmission. In order to reduce noise generated in the running process and reduce the overall weight, the existing transmission gears are mostly made of plastic materials. However, since the small motor itself is compact in structure, the volume of the transmission gear is small, and although the plastic gear has good vibration and noise reduction performance, the strength is relatively low, and deformation and even fracture are easy to occur when bearing large torque. Particularly, under the condition that the output shaft is subjected to abnormal resistance or abrupt load change, the torque at the output end of the motor rises sharply, so that the transmission gear is extremely easy to damage, the normal operation of the whole transmission system is further influenced, and even equipment faults are caused. The present utility model has been made in view of the above-described drawbacks. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provides a transmission assembly with a damping clutch structure, which has compact structure and good protection effect. The utility model is realized by the following technical scheme: The utility model provides a transmission assembly with a damping type clutch structure, which comprises a transmission shaft, wherein a rotary transmission part capable of axially rotating relative to the transmission shaft is connected to the transmission shaft, a clutch part positioned at one side of the rotary transmission part is also connected to the transmission shaft, and the clutch part is axially and slidably connected to the transmission shaft and can rotate along with the transmission shaft, so that the clutch part can be axially abutted against or separated from the rotary transmission part, an elastic element capable of providing a pretightening force to push the clutch part to be abutted against the rotary transmission part is also arranged between the transmission shaft and the clutch part, and a clutch structure capable of enabling the clutch part to be abutted against and transmitted when the torque of the rotary transmission part and the clutch part is smaller than a preset value and enabling the clutch part to be separated from the clutch part when the torque of the rotary transmission part and the clutch part are larger than the preset value is arranged between the transmission part and the clutch part. The transmission assembly with the damping clutch structure comprises a plurality of convex teeth which are arranged on the clutch piece and protrude towards the rotary transmission piece, and tooth grooves which are arranged on the rotary transmission piece and can be used for inserting the convex teeth. The transmission assembly with the damping clutch structure is characterized in that the convex teeth and the tooth grooves extend along the radial direction and are uniformly distributed along the circumferential direction. The section of the convex tooth is triangular or semicircular, and the section of the tooth slot is matched with the convex tooth. The transmission assembly with the damping clutch structure is characterized in that the rotary transmission member is a gear member, and the outer peripheral edge of the rotary transmission member is provided with gear teeth for meshing transmission with an external gear. The transmission assembly with the damping type clutch structure is characterized in that the transmission shaft member is provided with a first shaft section used for being connected with the clutch member, the clutch member is provided with a first assembly hole for the first shaft section to pass through, so that the clutch member can axially slide, the first shaft section is provided with a limiting structure capable of preventing the clutch member from rotating, and the first assembly hole is matched with the first shaft section in shape. The transmission assembly with the damping clutch structure is characterized in that the transmission shaft piece is provided with the first shaft shoulder on the first shaft section, and the elastic element is arranged between the first shaft shoulder and the clutch piece. The elastic element is an integral structure made of elastic plastic or rubber, or the elastic element is a spring, a spring pad or a wave pad. The transmission assembly with the damping clutch structure is characterized in that the transmission shaft member is of an integrated stru