阅读说明：本技术 一种可调节车身高度的减振器 (Shock absorber capable of adjusting height of vehicle body ) 是由 王昕� 罗家韦 乔斌 于 2019-08-27 设计创作，主要内容包括：本发明公开一种可调节车身高度的减振器,包括减振器本体、弹簧和弹簧盘,其特征在于,所述弹簧盘安装在减振器本体的储油筒上,可沿储油筒移动；还包括调节机构,调节弹簧盘在储油筒上的位置；所述调节机构包括电机和由电机带动的机械推动组件,所述机械推动组件推动弹簧盘沿储油筒轴线进行上下移动,实现对车身高度的调节。本发明通过巧妙地设置机械调节机构实现对车身高度的调节,结构简单,工作可靠,成本低,实用性强。(The invention discloses a shock absorber capable of adjusting the height of a vehicle body, which comprises a shock absorber body, a spring and a spring disc, and is characterized in that the spring disc is arranged on an oil storage cylinder of the shock absorber body and can move along the oil storage cylinder; the adjusting mechanism is used for adjusting the position of the spring disc on the oil storage cylinder; the adjusting mechanism comprises a motor and a mechanical pushing assembly driven by the motor, the mechanical pushing assembly pushes the spring disc to move up and down along the axis of the oil storage cylinder, and the height of the vehicle body is adjusted. The invention realizes the adjustment of the height of the vehicle body by skillfully arranging the mechanical adjusting mechanism, and has simple structure, reliable work, low cost and strong practicability.)

1. A shock absorber capable of adjusting the height of a vehicle body comprises a shock absorber body, a spring and a spring disc, and is characterized in that the spring disc is mounted on an oil storage cylinder of the shock absorber body and can move along the oil storage cylinder; the adjusting mechanism is used for adjusting the position of the spring disc on the oil storage cylinder; the adjusting mechanism comprises a motor and a mechanical pushing assembly driven by the motor, the mechanical pushing assembly pushes the spring disc to move up and down along the axis of the oil storage cylinder, and the height of the vehicle body is adjusted.

2. The adjustable body height shock absorber of claim 1, wherein the mechanical push assembly employs a worm gear assembly.

3. The adjustable body height shock absorber of claim 1, wherein the motor is fixedly mounted relative to the spring plate and moves with the spring plate.

4. The shock absorber of claim 2 or 3, wherein the worm of the worm gear assembly is connected to the output end of the motor and is matched with the worm wheel, the worm wheel is in threaded connection with the oil storage cylinder and is positioned below the spring disc, and the end face of the worm wheel is in sliding fit with the spring disc; the worm gear is driven by the rotation of the motor, and the worm gear rotates to rise or fall along the thread on the oil storage cylinder, so that the spring disc is pushed to move up and down.

5. The body height adjustable shock absorber according to claim 2 or 3, wherein the spring plate and the reservoir tube are movably mounted by a limit slide structure.

6. The shock absorber according to claim 5, wherein the limit sliding structure comprises a sliding groove and a limit block clamped in the sliding groove, the sliding groove is axially arranged on the wall of the oil storage cylinder, and the limit block is arranged on the spring disc.

7. The shock absorber according to claim 6, wherein the stopper is provided on an inner side wall of an inner hole in which the spring plate is fitted with the reservoir.

8. The adjustable body height shock absorber according to claim 2 or 3, wherein a sliding friction member is provided between the spring holder and the worm wheel end face.

9. The shock absorber of adjustable body height according to claim 2 or 3, wherein a housing chamber or a housing rack for mounting and housing the motor is fixed to the lower side of the spring holder.

10. The adjustable body height shock absorber of claim 9, wherein the receiving cavity is a bushing structure, and the motor is press-fitted into the bushing by interference.

11. The shock absorber according to claim 2 or 3, wherein a dust cover is provided around the push member, and the dust cover is engaged with the housing of the motor and the spring holder.

12. The adjustable body height shock absorber of claim 11, wherein the underside of said spring plate is provided with a protrusion near the periphery of the inner bore, and said dust cover is snap-fitted to the spring plate by the protrusion.

Technical Field

The invention belongs to automobile suspension parts, and particularly relates to a shock absorber capable of adjusting the height of an automobile body.

Background

In the conventional damper, referring to fig. 1, a spring disc 5 is fixed on a reservoir 6 and assembled with a spring 4 to realize the posture and the damping function of a vehicle, and the welding position of the spring disc 5 on the reservoir and the load point of the spring 4 determine the ground clearance of the vehicle.

However, at present, with the diversification of life of people, the role of the automobile is continuously changed along with the demand, and many times, a user needs a high vehicle ground clearance to have good trafficability characteristic and sometimes needs a low vehicle ground clearance to have good controllability. Therefore, the air spring is produced by the following steps, the air spring is fixed with the shock absorber, and the rigidity and the load point of the spring are controlled according to the change of the internal medium parameter, so that the increase or the decrease of the ground clearance of the vehicle is realized, and the requirement of a user is met. However, the air spring is high in manufacturing cost, fine in control requirement of the manufacturing process, complex in development process, unfavorable for development cost of vehicle types of various host factories, few in vehicle types applied to the market and generally high in selling price, so that vehicle type planning of the host factories is influenced and experience of customers is reduced.

Disclosure of Invention

The invention provides a shock absorber capable of adjusting the height of a vehicle body, which is characterized in that an adjusting mechanism is arranged on the basis of not changing the main body structure of the shock absorber to adjust the height of the vehicle body, so that the shock absorber not only can meet the requirements of low cost and easy processing and manufacturing, but also can meet the function of adjusting the ground clearance of a vehicle according to the requirements of a user in different scenes.

The technical scheme of the invention is as follows:

the utility model provides an adjustable automobile body height's shock absorber, includes shock absorber body, spring and spring holder etc. is the strut type shock absorber each part that front suspension adopted on most present vehicles, and its improvement lies in:

first, the spring plate is not fixed to a certain position on the reservoir of the shock absorber body, but is mounted on the reservoir so as to be movable along the reservoir, i.e., positionally movable.

Meanwhile, an adjusting mechanism is also arranged on the oil storage cylinder to adjust the position of the spring disc on the oil storage cylinder. The adjusting mechanism comprises a motor and a mechanical pushing assembly driven by the motor, the mechanical pushing assembly pushes the spring disc to move up and down along the axis of the oil storage cylinder, and the height of the vehicle body is adjusted. The motor and the spring holder are relatively fixedly installed and move along with the spring holder.

The mechanical pushing assembly adopts a worm gear assembly or other similar structural assemblies.

Specifically, a worm of the worm gear assembly is connected to the output end of the motor and matched with a worm wheel, the worm wheel is in threaded connection with the oil storage cylinder and located below the spring disc, and the end face of the worm wheel is in sliding fit with the spring disc; give motor input signal through user's different demands, the motor rotation drives the worm gear, and the worm wheel rises or descends along the rotatory screw thread on the oil storage section of thick bamboo, promotes promptly and reciprocates along the oil storage section of thick bamboo axis rather than the complex spring disc, realizes the regulation to the automobile body height.

In a further scheme of the invention, the spring disc and the oil storage cylinder are movably mounted and connected through a limiting sliding structure.

One of the concrete spacing sliding structure forms is, including spout and the stopper of card in the spout, the spout axial sets up on the oil storage section of thick bamboo wall, and the stopper is located on the spring dish.

The more succinct structure is that the stopper is located on the inside wall of the hole of spring disc and oil storage cylinder suit, just can block in the spout on the oil storage cylinder wall like this, slides from top to bottom.

In a further scheme of the invention, a sliding friction piece, such as a gasket and the like, can be arranged between the spring disc and the end face of the worm wheel and is used for placing friction and abrasion between the two parts, avoiding noise and prolonging the service life.

For the installation of the motor, in a further scheme of the invention, an accommodating cavity or an accommodating frame for accommodating the motor is fixedly installed at the lower side of the spring holder.

The simple structure is that the containing cavity adopts a sleeve structure, is welded and fixed at the lower side of the spring disc, and the motor is pressed in the sleeve in an interference fit manner.

In a further scheme of the invention, a dust cover is sleeved outside the worm gear and is clamped on a shell of the motor and the spring disc, so that the influence of impurities such as silt entering into a severe working environment on the lifting function can be prevented.

In order to guarantee the firmness and the convenience of the installation of the dust cover, the periphery of the lower side of the spring disc, which is close to the inner hole, is provided with a convex hull, and the dust cover is connected with the spring disc in a clamping mode through the convex hull.

The invention has the following advantages:

1. on the basis of not changing the basic structure of the shock absorber, the invention designs a spring disc capable of moving along an oil storage cylinder of the shock absorber, a worm wheel in threaded connection with the oil storage cylinder, and adjusting parts such as a motor, a worm and the like fixed with the spring disc, signals are input to the motor through different requirements of a user, the motor rotates to drive the worm wheel and the worm to drive, the spring disc is in sliding fit with the end face of the worm wheel, and the spring disc and the adjusting parts connected with the spring disc are matched with the threads on the oil storage cylinder to move up and down along the axis of the oil storage cylinder through the rotation of the worm wheel, so that the vehicle is lifted and lowered.

2. The adjusting mechanism of the invention adopts the worm gear and worm for matching, the structure has the functions of low energy consumption, high efficiency and reverse self-locking, ensures that the risk of falling of the spring disc due to the increase of load can not occur when the spring disc is in different position states, and can really realize the functions of adjusting the rising and the lowering of the vehicle through the shock absorber with low cost and easy manufacture.

3. The invention keeps the traditional shock absorber parts such as the shock absorber body, the upper mounting seat, the bearing, the spring and the like, ensures that the posture of a vehicle and the due basic functions of the shock absorber are not influenced, has few added adjusting parts, has small change on an oil storage cylinder and a spring disc, is easy to develop and simple to manufacture, and reduces the development and production cost for other liftable shock absorbers.

Drawings

FIG. 1 is a schematic view of a prior art damper assembly.

FIG. 2 is a schematic view of a practical vehicle assembly of the shock absorber assembly of the present invention.

Fig. 3 is an assembly schematic of the adjustment mechanism portion of the present invention.

Fig. 4 is a schematic view of the internal structure of fig. 3.

Fig. 5 is a sectional view a-a of fig. 4.

Fig. 6 is a partial sectional view B-B of fig. 4.

Fig. 7 is a schematic structural diagram of the motor and the worm gear.

Fig. 8 is a schematic view of the structure of the movable spring holder.

Fig. 9 is a schematic view of the dust cover.

Fig. 10 is a schematic structural view of the cartridge.

In the drawings, 1-upper mount; 2. a bearing; 3. a shock absorber dust cover; 4. a spring; 5. a spring holder; 6. an oil storage cylinder; 7. a knuckle mount; 71. knuckle bracket bolt holes; 8. a sleeve; 81. an inner surface of the sleeve; 9. a motor; 91. a motor housing; 92. a spline is arranged at the output end of the motor; 93. a motor output end shell; 10. a dust cover; 101. a mating portion; 11. a worm; 111. a worm thread; 12. a worm gear; 121. worm gear threads; 122. the end face of the worm wheel; 13. a spring plate movable along the oil reservoir; 131. a limiting block; 132. a spring holder lower surface; 133. a spring disc convex hull; 134. the lower end of the spring disc; 14. a liner; 15. a threaded oil reservoir; 151. oil storage cylinder threads; 152. a limiting groove; 16. Vehicle body bulging; 17. a knuckle; 171. knuckle bolt hole.

Detailed Description

The structure of the invention is explained in detail below with reference to the drawings: