CN-224197816-U - Can realize small and exquisite steering column of long stroke adjustment's structure

CN224197816UCN 224197816 UCN224197816 UCN 224197816UCN-224197816-U

Abstract

The utility model relates to a steering column which can realize long-stroke adjustment and has a small structure. The outer column tube is arranged in the support and is connected with the support, a long sliding hole is formed in the support, a length adjusting motor is fixed on the support through a bolt, an output shaft of the length adjusting motor is connected with a screw rod, a first adjusting screw nut and a second adjusting screw nut are sleeved on the screw rod, the first adjusting screw nut is fixedly connected with the outer column tube through a first connecting frame, a first sliding block is arranged on the first connecting frame and slides in the long sliding hole of the support, the second adjusting screw nut is connected with the inner column tube through a second connecting frame, a second sliding block is arranged on the second connecting frame and slides in the long sliding hole of the outer column tube. The two nuts realize synchronous transmission, the two nuts are respectively connected with different components, the constant-speed transmission of the two components is realized, half of the adjusting stroke is used, and the target adjusting range is realized.

Inventors

ZHOU YU
LU KAI
XU DEWANG
BAI HAOYU
FU BO
CHEN DAXING

Assignees

吉林世宝机械制造有限公司

Dates

Publication Date: 20260505
Application Date: 20250507

Claims (9)

1. The steering column is characterized by comprising a support, an outer column tube, an inner column tube, a steering shaft, a length adjusting motor, a screw rod, a first adjusting screw and a second adjusting screw, wherein the outer column tube is arranged in the support and is connected with the support, a long sliding hole is formed in the support, a bolt of the length adjusting motor is fixed on the support, an output shaft of the length adjusting motor is connected with the screw rod, the first adjusting screw and the second adjusting screw are sleeved on the screw rod, the first adjusting screw is fixedly connected with the outer column tube through a first connecting frame, a first sliding block is arranged on the first connecting frame and slides in the long sliding hole of the support, the second adjusting screw is connected with the inner column tube through a second connecting frame, and a second sliding block is arranged on the second connecting frame and slides in the long sliding hole of the outer column tube.
2. The steering column with a small structure capable of realizing long-stroke adjustment according to claim 1, wherein the centers of the first adjusting screw and the second adjusting screw are provided with threaded through holes for the screw rod to pass through, and the screw pitch of the second adjusting screw is larger than that of the first adjusting screw.
3. A slim steering column capable of long stroke adjustment according to claim 1, wherein the second adjusting nut has a pitch twice that of the first adjusting nut.
4. The steering column with the small structure capable of realizing long-stroke adjustment according to claim 1, wherein the inner column tube comprises an inner tube, a tolerance ring and a sliding sleeve, the inner tube is fixedly connected with the tolerance ring, the tolerance ring is in interference fit with the sliding sleeve, a retainer is arranged between the sliding sleeve and the outer column tube, a plurality of sliding ways are arranged on the outer side of the sliding sleeve and the inner side of the outer column tube, a plurality of sliding steel balls are arranged in the sliding ways of the sliding sleeve, a plurality of holes corresponding to the sliding steel balls are formed in the retainer, the sliding steel balls pass through the holes in the retainer to be in sliding fit with the outer column tube, and the second connecting frame is fixedly connected with the sliding sleeve.
5. The steering column with a small structure capable of realizing long-stroke adjustment according to claim 1, wherein the steering shaft is composed of a steering joint, a connecting pipe and a spline pipe, the steering joint is connected with the connecting pipe through a spline, the connecting pipe is connected with the spline pipe through a spline, the steering joint is rotatably connected with the inner pipe through a bearing, and the spline pipe is connected with the road feel simulator through a spline.
6. The steering column with the small structure capable of realizing long stroke adjustment according to claim 1, wherein one side of the support is connected with the length adjusting motor through a bolt, the other side of the support is connected with the angle adjusting motor through a bolt, three long sliding holes are formed in one side of the support, one side of the support is connected with the length adjusting motor, one side of the support is connected with the long sliding hole, the support is connected with the outer column through a first screw, the first screw penetrates through the first long sliding hole on the support to be in threaded connection with the outer column, the first screw can slide in the first long sliding hole of the support, one end of the outer column, facing the inner column, is in threaded connection with the angle adjusting support through a second screw, the second screw penetrates through the angle adjusting support to be in threaded connection with the outer column, the second screw can rotate relative to the angle adjusting support, sliding pieces are arranged on two outer sides of the support, the third screw penetrates through the sliding pieces and the second long sliding holes on the support to be in threaded connection with the angle adjusting support, and the third screw and the sliding pieces can slide in the second long sliding holes.
7. A steering column with a small structure capable of realizing long-stroke adjustment is characterized in that one side of a support is connected with a length adjusting motor through a bolt, the other side of the support is connected with an angle adjusting motor through a bolt, two long sliding holes are formed in one side of the support, one long sliding hole is formed in one side of the support, which is connected with one end, far away from an inner column tube, of the support, the support is connected with one end, far away from the inner column tube, of the outer column tube through a first screw, the first screw is connected with the support through a thread, the first screw slides in a sliding groove on the outer column tube after passing through the support, one end, facing the inner column tube, of the outer column tube is connected with the angle adjusting support through a second screw in a rotating mode, the second screw passes through the angle adjusting support and is in a threaded mode, sliding pieces are arranged on two outer sides of the support, the third screw passes through the sliding pieces and the second long sliding holes on the support and is in a threaded mode, and the third screw and the sliding pieces can slide in the second long sliding holes.
8. The steering column of claim 1, wherein the first connecting frame comprises a first upper connecting frame and a first lower connecting frame, the first upper connecting frame and the first lower connecting frame are arranged on two opposite sides of the first adjusting screw nut, the first upper connecting frame and the first lower connecting frame are connected through bolts to clamp the first adjusting screw nut, the first upper connecting frame is fixedly connected with the outer column tube, two first sliding blocks are fixed on the first upper connecting frame, and the two first sliding blocks slide in the long sliding holes of the support.
9. The steering column of claim 1, wherein the second connecting frame comprises a second upper connecting frame and a second lower connecting frame, the second upper connecting frame and the second lower connecting frame are arranged on two opposite sides of a second adjusting screw nut, the second upper connecting frame and the second lower connecting frame are connected through bolts to clamp the second adjusting screw nut, the second lower connecting frame passes through long holes on an outer column tube and a retainer and is fixedly connected with a sliding sleeve, two second sliding blocks are fixed on the second lower connecting frame, and the two second sliding blocks slide in the long sliding holes of the bracket.

Description

Can realize small and exquisite steering column of long stroke adjustment's structure Technical Field The utility model relates to the field of steering systems for automobiles, in particular to a steering column which can realize long-stroke adjustment and has a small structure. Background At present, the high-tech technologies such as man-machine interaction and automatic driving are continuously upgraded on the whole automobile at present in the increasingly developing automobile industry, the upgrading of the whole automobile system means that the steering system is also upgraded along with the upgrading, for example, the intelligent driving of the whole automobile is adapted to the drive-by-wire steering system of the whole automobile, and the functions of steering wheel expansion, folding, hiding and the like are realized, and at present, various product structures are made by the long-stroke contraction of each big host factory and the head supplier of the steering system on the steering wheel so as to avoid larger space, and better realization of man-machine interaction. The existing schemes about the long-stroke shrinkage of the steering column mostly have special lengths designed for the length of a screw rod or the whole length of the column is very long, and even the column which is suitable for the long-stroke shrinkage adjustment needs to develop a motor with a new structure type (such as a belt transmission mode, a double-screw transmission mode and the like), so that the existing column structure occupies very much space of the whole car, and the development of the new motor tends to bring high development cost, which is also the pain point and difficulty in developing the long-stroke shrinkage column in the current industry. Disclosure of utility model The utility model aims to provide a steering column with a small structure, which can realize long-stroke adjustment, and compared with the existing steering column, the length of the steering column is shortened, the length adjustment range is large, and a larger space can be reserved for the whole vehicle. The technical scheme of the utility model is as follows: The utility model provides a can realize small and exquisite steering column of long stroke adjustment's structure, includes support, outer column tube, interior column tube, steering spindle, length adjustment motor, lead screw, first regulation screw and second regulation screw, outer column tube establish in the support and with leg joint, open on the support has long slide hole, length adjustment motor bolt fastening is on the support, length adjustment motor output shaft lead screw, first regulation screw and second regulation screw suit are on the lead screw, first regulation screw is equipped with first slider through first link and outer column tube fixed connection on the first link, and first slider slides in the long slide hole of support, second regulation screw is connected with interior column tube through the second link, is equipped with the second slider on the second link, and the second slider slides in the long slide hole of outer column tube. The utility model has the beneficial effects that: 1. According to the steering column, the screw rod and the two adjusting nuts sleeved on the screw rod are designed, the two adjusting nuts move in the same direction, the two adjusting nuts are respectively connected with the inner column tube and the outer column tube, and the inner column tube and the outer column tube move in the same direction, so that the adjusting nuts move on the screw rod for half of the adjusting range, and the adjusting range twice as wide as the adjusting range can be achieved. 2. The steering shaft in the steering column is overlapped and used in an adjustment range through a three-layer sliding mode, in the length adjustment process, the support and the length adjustment motor are not moved, the outer column tube can move left and right relative to the support along with the inner column tube and the steering shaft, and the length adjustment far away from or close to the steering wheel can be realized, so that the whole structure of the steering column is shortened, the adjustment range is large, and a larger space can be reserved for a cab in the shrinkage process. The occupied space is greatly reduced, the design of the whole vehicle can be released to the greatest extent for a host factory, and the largest space is reserved for man-machine interaction of the whole vehicle. 3. The overall structure of the steering column is shortened, and the overall rigidity and the modal of the column are guaranteed to be optimal. 4. The length adjusting motor of the steering column is a basic motor, the structure is not required to be redesigned, the motor level is not required to be redeveloped in a targeted mode, and the development cost from a host factory to a supplier is greatly reduced. 5. The middle part of the steering column realizes the stabilit