Travel unloading mechanism of recirculating ball-type power steering gear of automobile
A technology of power steering gear and recirculating ball, applied in the direction of fluid steering mechanism, etc., can solve the problems of failure of power assist, failure to build up the pressure of the steering gear, and laborious rotation of the steering wheel in the reverse direction, so as to achieve the effect of improving reliability.
Active Publication Date: 2015-01-21
YUBEI XINXIANG POWER STEERING SYST
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Its disadvantages are: there is a problem of power failure in certain situations, for example, when the car wheel is stuck in the unloaded position or sunken into a pit and it is difficult to turn, because the left chamber and the right chamber have been connected, when the steering wheel is rotated in the opposite direction, the steering wheel The internal pressure of the steering wheel cannot be established, and it cannot generate power assistance. Only manual torque can be used to make the wheels return to the right position, which makes it very laborious to rotate the steering wheel in the opposite direction.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] The present invention will be described in further detail below. see figure 1 , 2 , recirculating ball type automotive power steering gear stroke unloading mechanism, including steering gear lower housing 1, steering nut 2 and combined sealing assembly 3 located in the sealing groove on the right cylindrical surface of steering nut 2, and the lower part of the left end of steering nut 2 with The gear rack on the rocker shaft 11 is engaged with the gear rack. The right end of the steering nut 2 is inserted into the cylindrical right cavity 4 of the lower housing 1 and kept in a clearance fit. The combined sealing assembly 3 connects the right cylindrical surface of the steering nut 2 to the right cavity 4 The gap between the inner walls is sealed, and the inner cavity of the lower casing on the left and lower sides of the steering nut 2 constitutes the left cavity 5, and the right cavity 4 and the left cavity 5 communicate with the corresponding port of the rotary valve...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technology of power steering gears of automobiles, relates to improvement of a recirculating ball-type power steering gear, and discloses a travel unloading mechanism of a recirculating ball-type power steering gear of an automobile. The travel unloading mechanism comprises a steering gear lower shell (1), a steering nut (2) and a combined sealing component (3), and the combined sealing component (3) is positioned in a sealing groove on a cylindrical surface of the right end of the steering nut (2). The travel unloading mechanism is characterized in that a left steel ball hole (15) of a left unloading hole (10) and a screw ring (13) are arranged at an outer port of the left unloading hole (10), a steel ball (12) is arranged in an unthreaded hole of the left steel ball hole (15), and a conical surface (14) is arranged on an inner port of a center hole of the screw ring (13); and a right steel ball hole (17) of a right unloading hole (8) is arranged on an outer port of the right unloading hole (8), another steel ball (12) is disposed in the right steel ball hole (17), and a conical surface (18) is arranged on an outer port of the right unloading hole (8). By the aid of the travel unloading mechanism, the problem of boosting failure of a travel unloading structure of a recirculating ball-type power steering gear of an automobile under specific conditions can be avoided, and reliability is improved.
Description
technical field [0001] The invention belongs to the technology of the automobile power steering gear and relates to the improvement of the circulating ball type automobile power steering gear. Background technique [0002] Chinese invention patent application "Stroke Unloading Structure of Recirculating Ball Automotive Power Steering Gear" (Application No.: 201110117749.0) discloses a stroke unloading structure of recirculating ball automotive power steering gear, which simplifies the original stroke unloading mechanism The structure facilitates the processing and reduces the cost. Its disadvantages are: there is a problem of power failure in certain situations, for example, when the car wheel is stuck in the unloaded position or sunken into a pit and it is difficult to turn, because the left chamber and the right chamber have been connected, when the steering wheel is rotated in the opposite direction, the steering wheel The internal pressure of the device cannot be establ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/06
Inventor 许斌陈剑锐闫宗杰张健张红
Owner YUBEI XINXIANG POWER STEERING SYST