Assistance module for power steering system of motor vehicle
An auxiliary module, power steering technology, applied in power steering mechanism, motor vehicle, mechanical steering gear, etc., can solve problems such as economic cost and complex structure
Inactive Publication Date: 2021-02-26
JTEKT EURO
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] For example, the flange can be fixed by clamping on the outer or inner ring of a mechanical rolling bearing, but this solution requires the formation of a clamping groove on one of the latter
[0010] Therefore, adding such a flange to a mechanical rolling bearing involves modifying its structure and making it more complex, and thus represents a significant economic cost
[0011] Another solution is to use larger mechanical rolling bearings, which can accommodate higher loads and misalignment of the output shaft, but this also has additional economic costs
Method used
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Experimental program
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Embodiment Construction
[0085] figure 1 A prior art power steering system 1 for a motor vehicle is represented.
[0086] The power steering system 1 comprises in particular an output shaft 2 which is mounted for rotatable movement about a longitudinal axis 22 in a reducer housing 3 .
[0087] This output shaft 2 is fixed to a tangential wheel 23 meshing with a worm 4 which itself is driven in rotation by an auxiliary motor (not shown).
[0088] The output shaft 2 also has a pinion 24 which meshes with a toothed rack 5 arranged in the steering housing 51 : the rotational movement of the output shaft 2 about the longitudinal axis 22 thus causes the toothed rack 5 to move in a direction orthogonal to the longitudinal axis 22 . translational movement on the .
[0089] The power steering system 1 can thus transmit the motor torque transmitted to the worm 4 by an auxiliary motor (not shown) to the rack 5 in order to assist the driver of the electric vehicle in steering the electric vehicle.
[0090] Spe...
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An assistance module for a power steering system of a motor vehicle includes a reducer casing 3 in which is mounted a reducer including an output shaft 2 provided with a pinion 24, the output shaft 2being rotatably mounted inside the reducer casing 3 by means of a mechanical rolling bearing 6 carried by a bearing provided on reducer casing between a tangent wheel 23 and the pinion 24, the mechanical rolling bearing 6 having several rolling elements 64 kept at a distance from each other by a separation cage 65, and the rolling elements and the separation cage being disposed in an annular rolling bearing space 63 formed between a coaxial internal 61 and external ring 62. The assistance module is characterized by including at least one blocking element 32 having at least one stop surface 33facing the annular rolling bearing space 63 at a distance such that at least one of the stop surfaces 33 prevents an ejection of the separation cage 65 out of the annular rolling bearing space 63.
Description
technical field [0001] The invention relates to an auxiliary module for a power steering system of a motor vehicle. Background technique [0002] In a conventional manner, a motor vehicle can be provided with a power steering system so that the effort provided by the driver of the motor vehicle for steering the motor vehicle can be reduced. [0003] Such power steering systems typically include a steering module including a steering rack whose ends are associated with the steering wheels of the motor vehicle via tie rods, and an auxiliary module including an auxiliary motor rotationally driving the output shaft, the output shaft is provided with a pinion that engages with the steering rack of the steering module: it is thus possible to transmit to the steering rack an auxiliary torque that is added to the steering wheels of the motor vehicle by the driver of the motor vehicle provided torque, thereby facilitating its drive. [0004] More specifically, the auxiliary motor d...
Claims
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IPC IPC(8): B62D3/12B62D3/04B62D5/04
CPCB62D3/04B62D3/12B62D5/008B62D5/0421F16C33/3806F16C35/06F16C2326/24F16H55/24F16H2057/0213F16C19/06F16C33/416F16C33/4605F16C33/495F16C33/497F16C33/498F16C33/414F16C41/00
Inventor米克·盖琳
OwnerJTEKT EURO