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CN-224211130-U - Double-layer composite steering pull rod

CN224211130UCN 224211130 UCN224211130 UCN 224211130UCN-224211130-U

Abstract

The utility model discloses a double-layer composite steering pull rod which comprises an inner layer rod body and an outer layer sleeve, wherein the inner layer rod body is made of high-strength alloy steel, the outer layer sleeve is made of carbon fiber reinforced composite materials, the inner layer rod body is adhered to the inner wall of the outer layer sleeve, threaded connection ends are arranged at two side ends of the inner layer rod body, a positioning boss is arranged at the outer end of the inner layer rod body, a positioning groove is arranged on the inner wall of the outer layer sleeve, a radiating fin is fixedly arranged at the outer end of the outer layer sleeve, and a radiating hole is formed in the middle of the radiating fin in a penetrating mode. Preferably, the cross section of the inner rod body is designed to be round, and polishing layers are respectively ground on the outer surface of the inner rod body and the inner wall of the outer sleeve. The double-layer composite steering pull rod can more accurately transmit the motion of the steering gear, improves the steering precision, enables a driver to more accurately control the running direction of a vehicle, and improves the control performance and the running safety of the vehicle.

Inventors

  • ZHAO YINFEN
  • XIAO XING
  • ZHAN LIANG
  • LIU XIAO
  • ZHU BINGJUN

Assignees

  • 靖江泰通汽车科技有限公司

Dates

Publication Date
20260508
Application Date
20250630

Claims (7)

  1. 1. The double-layer composite steering pull rod is characterized by comprising an inner-layer rod body (1) and an outer-layer sleeve (2), wherein the inner-layer rod body (1) is made of high-strength alloy steel, the outer-layer sleeve (2) is made of carbon fiber reinforced composite materials, the inner-layer rod body (1) is adhered to the inner wall of the outer-layer sleeve (2), threaded connecting ends (3) are arranged at two side ends of the inner-layer rod body (1), positioning bosses (101) are arranged at the outer ends of the inner-layer rod body (1), positioning grooves (201) are arranged at the inner wall of the outer-layer sleeve (2), radiating fins (4) are fixedly arranged at the outer ends of the outer-layer sleeve (2), and radiating holes (401) are formed in the middle of the radiating fins (4) in a penetrating mode.
  2. 2. The double-layer composite steering pull rod according to claim 1, wherein the cross section of the inner rod body (1) is designed to be round, and polishing layers are respectively polished on the outer surface of the inner rod body (1) and the inner wall of the outer sleeve (2).
  3. 3. The double-layer composite steering pull rod according to claim 2, wherein the threaded connection ends (3) are trapezoidal threads, and the number of the threaded connection ends (3) is two, and the threaded connection ends are symmetrically distributed at two side ends of the inner-layer rod body (1).
  4. 4. A double-layer composite steering tie rod according to claim 3, wherein the inner diameter of the outer sleeve (2) is matched with the outer diameter of the inner rod body (1).
  5. 5. The double-layer composite steering pull rod of claim 4, wherein the number of the positioning bosses (101) is several, the positioning bosses are sequentially and symmetrically distributed at the outer end of the inner-layer rod body (1), and the inner wall of the positioning groove (201) is mutually matched with the outer end of the positioning boss (101).
  6. 6. The double-layer composite steering pull rod of claim 5, wherein the number of the radiating fins (4) is several, the radiating fins are symmetrically distributed in sequence at the outer end of the outer sleeve (2), and the radiating fins (4) are made of alloy aluminum materials.
  7. 7. The double-layer composite steering pull rod of claim 6, wherein the number of the radiating holes (401) is several, and the radiating holes are symmetrically distributed in sequence at the middle part of the radiating fin (4).

Description

Double-layer composite steering pull rod Technical Field The utility model relates to the technical field of automobile steering systems, in particular to a double-layer composite steering pull rod. Background The steering system of an automobile is a generic term for a series of devices for changing or maintaining the direction of travel or reverse travel of an automobile, which is known as a "steering wheel control system" of an automobile, and a driver transmits a command to the steering system by manipulating a steering wheel, thereby controlling the direction of rotation of wheels, and causing the automobile to travel according to the driver's intention. In automotive steering systems, a tie rod is one of the key components responsible for transmitting the motion of the steering gear to the wheels, implementing the steering function of the vehicle. However, in the prior art, when the steering tie rod is actually used, the conventional steering tie rod is usually made of a single material, and the steering tie rod made of the single material is difficult to achieve the optimal balance in terms of strength and toughness. For example, while high strength steel can ensure sufficient strength to withstand the large forces involved in steering, toughness is relatively poor and brittle fracture is likely to occur when subjected to complex stresses or impacts, while materials with better toughness may not be strong enough to meet the reliability requirements of the steering system. In addition, when the traditional steering pull rod is used for coping with complex road conditions and frequent steering operation, the problems of abrasion, deformation and the like are easy to occur, so that the steering precision is reduced, and the driving safety is influenced. Disclosure of utility model The utility model aims to provide a double-layer composite steering pull rod, which aims to solve the problem that the traditional steering pull rod proposed in the background art is usually made of a single material, and the strength and toughness of the steering pull rod made of the single material are difficult to achieve the optimal balance. For example, while high strength steel can ensure sufficient strength to withstand the large forces involved in steering, toughness is relatively poor and brittle fracture is likely to occur when subjected to complex stresses or impacts, while materials with better toughness may not be strong enough to meet the reliability requirements of the steering system. In addition, when the traditional steering pull rod is used for coping with complex road conditions and frequent steering operation, the problems of abrasion, deformation and the like are easy to occur, so that the steering precision is reduced, and the driving safety is influenced. The heat dissipation device comprises an inner layer rod body and an outer layer sleeve, wherein the inner layer rod body is made of high-strength alloy steel, the outer layer sleeve is made of carbon fiber reinforced composite materials, the inner layer rod body is adhered to the inner wall of the outer layer sleeve, threaded connection ends are arranged at two side ends of the inner layer rod body, a positioning boss is arranged at the outer end of the inner layer rod body, a positioning groove is arranged on the inner wall of the outer layer sleeve, a heat dissipation fin is fixedly arranged at the outer end of the outer layer sleeve, and a heat dissipation hole is formed in the middle of the heat dissipation fin in a penetrating mode. Preferably, the cross section of the inner rod body is designed to be round, and polishing layers are respectively ground on the outer surface of the inner rod body and the inner wall of the outer sleeve. Preferably, the threaded connection ends adopt trapezoidal threads, and the number of the threaded connection ends is two, and the threaded connection ends are symmetrically distributed at two side ends of the inner-layer rod body respectively. Preferably, the inner diameter of the outer sleeve is matched with the outer diameter of the inner rod body. Preferably, the number of the positioning bosses is a plurality, the positioning bosses are respectively and sequentially symmetrically distributed at the outer ends of the inner-layer rod body, and the inner walls of the positioning grooves are mutually matched with the outer ends of the positioning bosses. Preferably, the number of the radiating fins is a plurality, the radiating fins are respectively and sequentially symmetrically distributed at the outer end of the outer sleeve, and the radiating fins are made of alloy aluminum materials. Preferably, the number of the radiating holes is a plurality, and the radiating holes are respectively and sequentially symmetrically distributed at the middle part of the radiating fin. Compared with the prior art, the utility model has the beneficial effects that: The double-layer composite structure of the utility model realizes