CN111546844B

CN111546844B - Height-adjustable spring seat structure and automobile

Info

Publication number: CN111546844B
Application number: CN202010275560.3A
Authority: CN
Inventors: 雷海风
Original assignee: Wuhan Lotus Cars Co Ltd
Current assignee: Wuhan Geely Automobile Research And Development Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-09-07
Anticipated expiration: 2040-04-09
Also published as: CN111546844A

Abstract

The invention discloses a height-adjustable spring seat structure which comprises a swing arm, an adjusting mechanism and a spring seat, wherein the adjusting mechanism is arranged between the swing arm and the spring seat, and is used for adjusting the distance between the spring seat and the swing arm. The distance of the spring seat is adjusted through the adjusting mechanism, so that the height of the spring is adjusted, the height of the chassis at the bottom of the automobile is adjusted, the vehicle can adjust different chassis heights according to different road conditions and different driving speeds, and the driving pleasure of consumers is increased. The invention also discloses an automobile which comprises the spring and the spring seat structure.

Description

Height-adjustable spring seat structure and automobile

Technical Field

The invention relates to the technical field of automobile parts, in particular to a height-adjustable spring seat structure and an automobile.

Background

With the continuous improvement of the research and development level of automobile manufacturing, people have higher requirements on the controllability and comfort of automobiles. Among other things, vehicle shock absorption systems play a vital role. In a common suspension structure, an elastic element is used for bearing and transmitting vertical load, and the impact of uneven road surface on a vehicle body in the driving process is relieved. The most applied of the elastic elements are coil springs, and the coil springs are low in cost and good in reliability. In practical application, the elastic element is also required to be matched with the spring seat for use, so that the stability of the elastic element in the compression or extension process is ensured.

In the actual driving process of the vehicle, the lower the gravity center of the vehicle is, the better the gravity center of the vehicle is, namely the lower the vehicle chassis is, the better the vehicle chassis is, the operation performance of the whole vehicle is favorably improved, and the driving comfort of the vehicle with the higher ground clearance of the chassis cannot be ensured. For a severe road surface, the gravity center of the vehicle is higher and better, namely the vehicle chassis is higher and better, the passing performance of the whole vehicle can be improved, the chassis is prevented from being scratched, the visual field of a driver can be improved, and the passing performance of the chassis can not be guaranteed by the vehicle with the lower ground clearance of the chassis. The design of the whole vehicle forms an unavoidable contradiction, so that a spring seat is required to be designed, and the height of the chassis can be adjusted.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a height-adjustable spring seat structure and an automobile, so as to solve the problem that the height of an automobile chassis in the prior art is not adjustable.

The purpose of the invention is realized by the following technical scheme:

the invention provides a height-adjustable spring seat structure which comprises a swing arm, an adjusting mechanism and a spring seat, wherein the adjusting mechanism is arranged between the swing arm and the spring seat, and is used for adjusting the height of the spring seat relative to the swing arm.

Further, this adjustment mechanism includes the outer dabber, is equipped with connecting portion on this swing arm, this connecting portion be equipped with this outer dabber complex through-hole, should locate in this through-hole by outer dabber, this outer dabber passes through threaded connection with this connecting portion.

Further, this adjustment mechanism still includes inner core axle and auxiliary shaft, this outer core axle be equipped with this inner core axle and this auxiliary shaft complex via hole, this inner core axle and this auxiliary shaft all locate this via hole in, the top of this outer core axle is inconsistent with this spring holder, this auxiliary shaft is located the top of this inner core axle, this inner core axle passes through threaded connection with this outer core axle, this auxiliary shaft is contradicted with this inner core axle, this auxiliary shaft can be at this via hole internalization.

Further, the friction force between the auxiliary shaft and the spring seat is smaller than the friction force between the outer mandrel and the spring seat; or/and the friction force between the auxiliary shaft and the inner mandrel is smaller than the friction force between the outer mandrel and the spring seat.

Further, the thread direction of the outer mandrel and the connecting part is opposite to the thread direction of the inner mandrel and the outer mandrel.

Furthermore, the bottom of the auxiliary shaft is provided with a limiting bulge, and the top of the inner core shaft is provided with a limiting groove matched with the limiting bulge.

Furthermore, the bottom of the outer mandrel is provided with a first operation hole, the bottom of the inner mandrel is provided with a second operation hole, and the first operation hole and the second operation hole are of non-circular structures.

Further, this adjustment mechanism still includes compresses tightly the apron, should compress tightly the apron and locate in this through-hole and lie in the bottom of this outer dabber, should compress tightly the apron and pass through threaded connection with this connecting portion, should compress tightly the apron and be equipped with the third handle hole of non-circular structure.

Furthermore, the bottom of the spring seat is provided with a groove matched with the outer mandrel, and the top of the spring seat is provided with a gasket matched with the spring.

The invention also provides an automobile, which further comprises a spring and the height-adjustable spring seat structure, wherein the spring is matched with the spring seat.

The invention has the beneficial effects that: the spring seat structure comprises a swing arm, an adjusting mechanism and a spring seat, the adjusting mechanism is arranged between the swing arm and the spring seat, and the adjusting mechanism is used for adjusting the distance between the spring seat and the swing arm. The distance of the spring seat is adjusted through the adjusting mechanism, so that the height of the spring is adjusted, the height of the chassis at the bottom of the automobile is adjusted, the vehicle can adjust different chassis heights according to different road conditions and different driving speeds, and the driving pleasure of consumers is increased.

Drawings

FIG. 1 is a perspective view of a highly adjustable spring seat structure in accordance with one embodiment of the present invention;

FIG. 2 is a front view of a highly adjustable spring seat structure in accordance with an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a highly adjustable spring seat structure prior to adjustment in an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of the enlarged structure at E in FIG. 3;

FIG. 5 is a schematic cross-sectional view of a highly adjustable spring seat structure after adjustment in accordance with one embodiment of the present invention;

FIG. 6 is an enlarged partial schematic view of FIG. 5 at F;

FIG. 7 is a schematic cross-sectional view of an outer mandrel according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of an auxiliary shaft according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of the inner core shaft according to one embodiment of the present invention;

FIG. 10 is a cross-sectional view of a spring seat in accordance with a first embodiment of the present invention;

fig. 11 is a partially enlarged structural schematic view of a highly adjustable spring seat structure in the second embodiment of the invention.

In the figure: a swing arm 10, a connecting part 11 and a through hole 111; the adjusting mechanism 20, the outer mandrel 21, the via hole 211, the first operating hole 212, the inner mandrel 22, the limiting groove 221, the second operating hole 222, the auxiliary shaft 23, the limiting protrusion 231, the pressing cover plate 24 and the third operating hole 241; spring seat 30, groove 31, gasket 32; a spring 40.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the height adjustable spring seat structure and the vehicle according to the present invention will be made with reference to the accompanying drawings and preferred embodiments as follows:

[ example one ]

Figure 1 is a perspective view of a highly adjustable spring seat structure in an embodiment of the invention, figure 2 is a front view schematic diagram of a highly adjustable spring seat structure in an embodiment of the invention, figure 3 is a schematic cross-sectional view of a highly adjustable spring seat structure prior to adjustment in an embodiment of the present invention, fig. 4 is a partially enlarged structural view at E in fig. 3, fig. 5 is a sectional view of a highly adjustable spring seat structure after adjustment in accordance with one embodiment of the present invention, fig. 6 is a partially enlarged structural view of a portion at F in fig. 5, fig. 7 is a sectional structural view of an outer mandrel according to an embodiment of the present invention, fig. 8 is a schematic sectional structure view of an auxiliary shaft in the first embodiment of the present invention, fig. 9 is a schematic sectional structure view of an inner spindle in the first embodiment of the present invention, and fig. 10 is a schematic sectional structure view of a spring seat in the first embodiment of the present invention.

As shown in fig. 1 to 10, a height-adjustable spring seat structure provided in an embodiment of the present invention includes a swing arm 10, an adjusting mechanism 20, and a spring seat 30, where the adjusting mechanism 20 is disposed between the swing arm 10 and the spring seat 30, and the adjusting mechanism 20 is used to adjust a distance between the spring seat 30 and the swing arm 10. The swing arm 10 is a rear lower swing arm of the automobile and is used for connecting a rear brake and a rear auxiliary frame, transmitting force between the wheel and the rear auxiliary frame and controlling the movement track of the wheel, and in the driving process of the automobile, if a pothole is encountered and a slope is climbed and crossed over a ridge, a buffering effect is provided, so that the wheel jumping amplitude is reduced, the shock absorption and the buffering are realized, the safety in the driving process of the automobile is improved, and as for the more detailed description of the swing arm 10, the prior art is referred to, and the description is omitted.

In this embodiment, the adjusting mechanism 20 includes an outer spindle 21, the swing arm 10 is provided with a connecting portion 11, the connecting portion 11 is provided with a through hole 111 (fig. 6) matched with the outer spindle 21, that is, the connecting portion 11 is a tubular structure. In outer dabber 21 located through-hole 111, outer dabber 21 and connecting portion 11 passed through threaded connection, and connecting portion 11 is equipped with the internal thread promptly, outer dabber 21 be equipped with interior screw thread matched with external screw thread, through rotating outer dabber 21, outer dabber 21 can reciprocate and drive spring holder 30 and reciprocate together through the helicitic texture to realize adjusting the height of spring holder 30. Of course, in other embodiments, the adjusting mechanism 20 may be a telescopic cylinder or a telescopic oil cylinder, and is not limited thereto.

Further, in this embodiment, the adjusting mechanism 20 further includes an inner spindle 22 and an auxiliary shaft 23, a top of the outer spindle 21 abuts against the spring seat 30, the outer spindle 21 is provided with a through hole 211 (fig. 7) matched with the inner spindle 22 and the auxiliary shaft 23, the inner spindle 22 and the auxiliary shaft 23 are both disposed in the through hole 211, and the auxiliary shaft 23 is located at a top of the inner spindle 22. The inner spindle 22 is connected with the outer spindle 21 through threads, that is, the outer spindle 21 is provided with internal threads in the through hole 211, and the inner spindle 22 is provided with external threads matched with the internal threads. The auxiliary shaft 23 is abutted against the inner core shaft 22, and the auxiliary shaft 23 can move in the through hole 211. By rotating the inner core shaft 22, the inner core shaft 22 can move up and down through a threaded structure and drives the auxiliary shaft 23 and the spring seat 30 to move up and down together, so as to increase the height adjustment range of the spring seat 30, and preferably, the height adjustment range of the spring seat 30 is 5-35 mm.

The friction force between the auxiliary shaft 23 and the spring seat 30 is smaller than the friction force between the outer spindle 21 and the spring seat 30, that is, the friction coefficient of the upper surface of the auxiliary shaft 23 is smaller than the friction coefficient of the upper surface of the outer spindle 21. Or, the friction force between the auxiliary shaft 23 and the inner shaft 22 is smaller than the friction force between the outer spindle 21 and the spring seat 30, or the friction force between the auxiliary shaft 23 and the spring seat 30 is smaller than the friction force between the outer spindle 21 and the spring seat 30, and meanwhile, the friction force between the auxiliary shaft 23 and the inner shaft 22 is also smaller than the friction force between the outer spindle 21 and the spring seat 30, so as to reduce the friction force during adjustment. When the height of the spring seat 30 is adjusted, the inner spindle 22 moves up and down through a threaded structure and drives the auxiliary shaft 23 to move up and down, the auxiliary shaft 23 abuts against the spring seat 30 and jacks up the spring seat 30, the spring seat 30 is separated from the outer spindle 21, the friction force of the end face contact of the spring seat 30 and the outer spindle 21 during rotation is eliminated, after the height adjustment is completed, the inner spindle 22 is rotated to enable the auxiliary shaft 23 to descend and be separated from the spring seat 30, and the spring seat 30 is prevented from rotating when being stressed.

In this embodiment, the thread direction of the outer spindle 21 and the connection portion 11 is opposite to the thread direction of the inner spindle 22 and the outer spindle 21, that is, when the outer spindle 21 rotates to the left relative to the connection portion 11, the outer spindle 21 moves upward, and when the inner spindle 22 rotates to the left relative to the outer spindle 21, the inner spindle 22 moves downward, so as to prevent mutual interference when the outer spindle 21 or the inner spindle 22 is rotated.

In this embodiment, the bottom of the auxiliary shaft 23 is provided with a limiting protrusion 231 (fig. 8), and the top of the inner core shaft 22 is provided with a limiting groove 221 (fig. 9) matched with the limiting protrusion 231, so as to facilitate the installation of the auxiliary shaft 23 and the inner core shaft 22.

In this embodiment, the bottom of the outer spindle 21 is provided with a first operation hole 212 (fig. 7), the bottom of the inner spindle 22 is provided with a second operation hole 222 (fig. 9), and the first operation hole 212 and the second operation hole 222 are non-circular structures. The first operation hole 212 and the second operation hole 222 may be polygonal (e.g., regular triangle, regular quadrangle, regular hexagon), and the first operation hole 212 and the second operation hole 222 are engaged with a wrench to rotate the outer core shaft 21 and the inner core shaft 22.

In this embodiment, as shown in fig. 10, a groove 31 matched with the outer spindle 21 is formed at the bottom of the spring seat 30, the upper portion of the outer spindle 21 is a conical surface, so that the contact area between the outer spindle 21 and the spring seat 30 is increased, and the spring seat 30 is more stable when being stressed, but the outer spindle 21 may also be cylindrical. The top of spring holder 30 still is equipped with the gasket 32 with spring 40 complex, and gasket 32 can be made for the flexible glue material, reduces the wearing and tearing of spring 40 and spring holder 30.

[ example two ]

Fig. 11 is a partially enlarged structural schematic view of a highly adjustable spring seat structure in the second embodiment of the invention. As shown in fig. 11, a height-adjustable spring seat structure provided in the second embodiment of the present invention is substantially the same as the height-adjustable spring seat structure provided in the first embodiment (fig. 1 to 10), except that in the present embodiment, the adjusting mechanism 20 further includes a pressing cover plate 24, the pressing cover plate 24 is disposed in the through hole 111 and located at the bottom of the outer core shaft 21, the pressing cover plate 24 is connected to the connecting portion 11 through a screw thread, the pressing cover plate 24 is provided with an external screw thread matching with the internal screw thread of the connecting portion 11, the pressing cover plate 24 is provided with a third operating hole 241 having a non-circular structure, the third operating hole 241 may be a polygon (e.g., a regular triangle, a regular quadrangle, or a regular hexagon), the third operating hole 241 is matched with a wrench, and the pressing cover plate 24 is rotated by the wrench.

Compared with the first embodiment, the outer core shaft 21 is further compressed by the compressing cover plate 24, so that the connection strength between the outer core shaft 21 and the connecting part 11 can be improved, and the outer core shaft 21 is prevented from loosening after being stressed.

It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.

The automobile further comprises a spring 40 and the height-adjustable spring seat structure, wherein the spring 40 is matched with the gasket 32 of the spring seat 30.

In summary, according to the invention, through the threaded fit between the outer mandrel 21 and the connecting part 11 and between the inner mandrel 22 and the outer mandrel 21, the outer mandrel 21 and the inner mandrel 22 can move up and down through a threaded structure, so that the spring seat 30 is driven to move up and down together, and the height of the spring 40 is adjusted, so that the height of the chassis at the bottom of the automobile is adjusted, the automobile can adjust different chassis heights according to different road conditions and different driving speeds, and the driving pleasure of consumers is increased. Moreover, the outer mandrel 21 is arranged in the through hole 111 of the connecting part 11, and the inner mandrel 22 is arranged in the through hole 211 of the outer mandrel 21, so that the occupation amount of the spring seat structure in the longitudinal space can be greatly saved.

In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a spring seat structure with adjustable height, characterized in that, including swing arm (10), adjustment mechanism (20) and spring holder (30), this adjustment mechanism (20) are located between this swing arm (10) and this spring holder (30), this adjustment mechanism (20) are used for adjusting the distance between this swing arm (10) of this spring holder (30) relatively, this adjustment mechanism (20) include outer dabber (21), be equipped with connecting portion (11) on this swing arm (10), this connecting portion (11) are equipped with through-hole (111) with this outer dabber (21) complex, this outer dabber (21) are located in this through-hole (111), this outer dabber (21) and this connecting portion (11) pass through threaded connection, this adjustment mechanism (20) still include inner spindle (22) and auxiliary shaft (23), this outer dabber (21) are equipped with this inner spindle (22) and this auxiliary shaft (23) complex via hole (211), this inner spindle (22) and this supplementary axle (23) all locate in this via hole (211), the top and this spring holder (30) of this outer spindle (21) are inconsistent, this supplementary axle (23) are located the top of this inner spindle (22), this inner spindle (22) passes through threaded connection with this outer spindle (21), this supplementary axle (23) offsets with this inner spindle (22), this supplementary axle (23) can be in this via hole (211) internalization.

2. The height-adjustable spring seat structure according to claim 1, characterized in that the friction force of the auxiliary shaft (23) with the spring seat (30) is smaller than the friction force of the outer spindle (21) with the spring seat (30); or/and the friction force of the auxiliary shaft (23) and the inner mandrel (22) is smaller than the friction force of the outer mandrel (21) and the spring seat (30).

3. A height adjustable spring seat structure according to claim 1, characterized in that the screw thread direction in which the outer spindle (21) and the connecting portion (11) are engaged is opposite to the screw thread direction in which the inner spindle (22) and the outer spindle (21) are engaged.

4. The height-adjustable spring seat structure according to claim 1, wherein the auxiliary shaft (23) is provided at the bottom thereof with a stopper protrusion (231), and the inner spindle (22) is provided at the top thereof with a stopper groove (221) engaged with the stopper protrusion (231).

5. The height adjustable spring seat structure according to claim 1, wherein the bottom of the outer spindle (21) is provided with a first operation hole (212), the bottom of the inner spindle (22) is provided with a second operation hole (222), and the first operation hole (212) and the second operation hole (222) are of non-circular configuration.

6. The height-adjustable spring seat structure according to claim 1, wherein the adjusting mechanism (20) further comprises a pressing cover plate (24), the pressing cover plate (24) is disposed in the through hole (111) and located at the bottom of the outer spindle (21), the pressing cover plate (24) is connected to the connecting portion (11) by a screw, and the pressing cover plate (24) is provided with a third operation hole (241) having a non-circular structure.

7. A height adjustable spring seat structure according to claim 1, characterized in that the bottom of the spring seat (30) is provided with a groove (31) for cooperation with the outer spindle (21), and the top of the spring seat (30) is provided with a washer (32) for cooperation with the spring (40).

8. A motor vehicle, characterized in that the motor vehicle further comprises a spring (40) and a height adjustable spring seat structure according to any one of claims 1-7, the spring (40) cooperating with the spring seat (30).