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CN-224211128-U - Light steering gear casing structure capable of increasing structural strength

CN224211128UCN 224211128 UCN224211128 UCN 224211128UCN-224211128-U

Abstract

The utility model relates to the technical field of steering systems, in particular to a lightweight steering gear housing structure capable of increasing structural strength. A lightweight steering gear shell structure capable of increasing structural strength is characterized in that a claw rib is arranged between one side of a driving gear tube wall and a rack tube wall, the claw rib is of a Y-shaped structure, one end transverse rib of the claw rib is connected with the rack tube wall, the other end of the claw rib is bifurcated to form an upper side wing plate and a lower side wing plate, the upper side wing plate of the claw rib is connected with the tube wall outer side of the driving gear tube wall, the lower side wing plate of the claw rib is connected with the outer side face of a bearing hole, and a reinforcing rib I is arranged between the other side of the driving gear tube wall and the rack tube wall. Compared with the prior art, the structure of the claw rib is designed, the strength of the shell is obviously improved under the condition that the thickness of the shell is kept to be thinner and the weight of the shell is slightly increased, and meanwhile, the casting defect caused by uneven cooling in the casting process can be better avoided due to the fact that the local thickness is too large.

Inventors

  • DING JUNYAN
  • WAN ZEFU
  • ZHANG QUANJING
  • SUN TONG
  • WANG HAIYAN
  • YAN FUYONG

Assignees

  • 博世华域转向系统（武汉）有限公司

Dates

Publication Date
20260508
Application Date
20250610

Claims (6)

  1. 1. The utility model provides a lightweight steering gear casing structure capable of increasing structural strength, which comprises a rack pipe wall, the drive gear pipe wall, the motor end, servo end, the sensor end, the bush mounting hole, motor end (3) and servo end (4) are connected to one end of rack pipe wall (7), drive gear pipe wall (8) are connected to the other end of rack pipe wall (7), sensor end (2) and bearing hole (11) are connected respectively to upper and lower both ends of drive gear pipe wall (8), connect bush mounting hole (1) on rack pipe wall (7) that are located one side of bearing hole (11), characterized in that is equipped with sheep horn muscle (6) between one side of drive gear pipe wall (8) and rack pipe wall (7), sheep horn muscle (6) be Y type structure, the one end horizontal muscle of sheep horn muscle (6) is connected with rack pipe wall (7), the other end bifurcation of sheep horn muscle (6) forms upper flank and lower flank pterygoid, the upper flank of sheep horn muscle (6) is connected with the pipe wall outside of drive gear pipe wall (8), the lower flank of sheep horn muscle (6) is equipped with between the outside of bearing hole (11) and the outside of driving gear pipe wall (8).
  2. 2. The light-weight steering gear housing structure with increased structural strength according to claim 1, wherein the first reinforcing ribs (5) are parallel to the axial direction of the rack.
  3. 3. The light steering gear casing structure capable of increasing structural strength according to claim 1, wherein the left side and the right side of the lower end of the sensor end (2) are respectively connected with the rack pipe wall (7) by adopting a second reinforcing rib (9) and a third reinforcing rib (10).
  4. 4. The light steering gear casing structure capable of increasing structural strength according to claim 1, wherein one end transverse rib of the claw bar (6) is parallel to the axis direction of the rack.
  5. 5. The light steering gear casing structure capable of increasing structural strength according to claim 1, wherein the upper side wing plate and the lower side wing plate at the other end of the claw bar (6) are connected with one transverse bar at one end of the claw bar (6) in an S-shaped transition mode respectively.
  6. 6. The lightweight steering gear casing structure capable of increasing structural strength according to claim 1, wherein the upper side wing plate and the lower side wing plate at the other end of the claw bar (6) are respectively higher than the driving gear pipe wall (8) and the bearing hole (11).

Description

Light steering gear casing structure capable of increasing structural strength Technical Field The utility model relates to the technical field of steering systems, in particular to a lightweight steering gear housing structure capable of increasing structural strength. Background With the popularization of three-electric systems of new energy vehicles and the increasing maturity of intelligent driving, new energy household sedans and SUVs are increasingly favored by consumers, but the new energy vehicles with high endurance mileage mean heavier whole vehicle quality, which means that compared with fuel vehicles in daily travel and other complex working conditions, the steering engine shell of the new energy vehicles bears larger impact kinetic energy, so that the safety of the steering engine shell under the working condition of high torque rapid steering is more important. Therefore, the design of the steering gear shell needs to be lengthened and thickened to meet the strength requirements under various complex working conditions. However, too long a thick housing increases the cost of the product and affects the efficiency of the trolley. Therefore, in order to avoid serious yielding or cracking of the steering gear shell under severe working conditions such as large rack force or large torque, a steering gear shell structure which simultaneously meets the requirements of structural strength and light weight is designed. Disclosure of Invention The utility model provides a lightweight steering gear shell structure capable of increasing structural strength, which is designed to be a claw-shaped rib structure, so that the strength of the shell is obviously improved under the condition of keeping a thinner wall thickness and slightly increasing the weight of the shell, more effective mass participates in vibration during vibration, the vibration frequency is reduced, and meanwhile, the casting defect caused by uneven cooling in the casting process can be better avoided due to the fact that the local thickness is too large. In order to achieve the above purpose, a lightweight steering engine shell structure capable of increasing structural strength is designed and comprises a rack pipe wall, a driving gear pipe wall, a motor end, a servo end, a sensor end and a bushing mounting hole, wherein one end of the rack pipe wall is connected with the motor end and the servo end, the other end of the rack pipe wall is connected with the driving gear pipe wall, the upper end and the lower end of the driving gear pipe wall are respectively connected with the sensor end and a bearing hole, the rack pipe wall on one side of the bearing hole is connected with the bushing mounting hole. The first reinforcing rib is parallel to the axis direction of the rack. The left side and the right side of the lower end of the sensor end are respectively connected with the wall of the rack pipe by adopting a second reinforcing rib and a third reinforcing rib. One end transverse rib of the claw rib is parallel to the axis direction of the rack. The upper side wing plate and the lower side wing plate at the other end of the claw bar are respectively connected with the transverse bar at one end of the claw bar in an S-shaped transition way. The upper side wing plate and the lower side wing plate at the other end of the claw bar are respectively higher than the wall of the driving gear tube and the bearing hole. Compared with the prior art, the lightweight steering gear casing structure capable of increasing structural strength is provided, the claw rib structure is designed, the casing strength is obviously improved under the condition that the thickness of the thin wall is kept and the weight of the casing is slightly increased, more effective mass participates in vibration during vibration, the vibration frequency is reduced, and meanwhile, the casting defect caused by uneven cooling in the casting process can be better avoided due to the fact that the local thickness is too large. Compared with the traditional method for increasing the wall thickness of the circular pipe wall, the utility model can better meet the strength requirement and the service life requirement of impact working conditions and fatigue working conditions. Drawings Fig. 1 is a front view of the structure of the present utility model. Fig. 2 is a top view of the structure of the present utility model. Fig. 3 is an enlarged schematic view of a portion of the structure of the present utility model. Detailed Description The utility model is further described below with reference to the accompanying drawings. As shown in fig. 1 to 3, a lightweight steering gear housing structure capable of increasing structural strength comprises a rack pipe wall, a driving gear pipe wall, a motor end, a servo end, a sensor end and a bushing mounting hole, wherein one end of the rack pipe wall 7 is connected with the motor end 3 and the servo end 4, the other end of the rack pipe wall