阅读说明：本技术 高机动找平吸振悬架 (High-mobility leveling shock-absorbing suspension ) 是由 宣昌黎 于 2020-07-30 设计创作，主要内容包括：本发明涉及汽车悬架结构,特别是一种高机动找平吸振悬架。它包括主气室和副气室及减振器；本发明高机动找平吸振悬架,专门设计了伸缩稳力技术,减振器设计了数字变径阀和同步变径程序,使轿车悬架自动适应全路况的找平和吸振。(The invention relates to an automobile suspension structure, in particular to a high-mobility leveling and vibration absorbing suspension. It includes main air chamber, auxiliary air chamber and vibration damper; the invention relates to a high-mobility leveling and vibration absorbing suspension, which is specially designed with a telescopic force stabilizing technology, and a shock absorber is designed with a digital variable diameter valve and a synchronous variable diameter program, so that the car suspension can automatically adapt to leveling and vibration absorbing of all road conditions.)

1. The utility model provides a high maneuvering leveling shock-absorbing suspension which characterized in that: the air conditioner comprises a main air chamber (2), an auxiliary air chamber (1) and a shock absorber (4);

the outer layer of the main air chamber (2) is an oil-proof rubber layer (17), the inner layer is a cord airtight rubber layer (16), and a plurality of telescopic stability rings (3) are arranged between the two layers of structures; the upper port of the main air chamber (2) is connected with the auxiliary air chamber (1), an air chamber partition plate (19) is arranged between the two chambers, and an elastic reducing valve (10) is arranged on the air chamber partition plate (19); the upper and lower ports of the main air chamber (2) are provided with a main air chamber outer framework (6), and the upper and lower ports of the dust cover (7) are assembled on the outer ring of the main air chamber outer framework (6); a piston rod (15) is arranged in the main air chamber (2), and a braking energy releaser (18) is sleeved on the outer ring of the piston rod (15);

the auxiliary air chamber (1) is fixed at the upper part of the main air chamber (2), and the top of the auxiliary air chamber is provided with a loading screw rod (9) which is tightly assembled with the host machine assembly seat;

the shock absorber (4) comprises a cylinder (27) and a piston rod (15); the cylinder wall of cylinder (27) upper end is equipped with cylinder and aerifys hole (32), cylinder (27) inner chamber top is equipped with director (20), the piston rod (15) head inserts in main air chamber (2) and fixes with the axle center hole of air chamber baffle (19), install in the axle center hole of director in piston rod (15) middle section, the upper end axle center hole fastening assembly of piston rod (15) tail end and piston (31), piston rod (15) tail section inside is equipped with two-way air vent (23), stroke limiter (22) suit is in the piston rod middle section.

2. The high powered leveling shock absorbing suspension of claim 1 wherein: piston (31) outer lane go up the slot and be equipped with O shape sealing washer (25), the slot is equipped with lubricated direction area (26) down, digital reducing valve (29) and valve sealing washer (30) are installed to piston lower extreme internal diameter.

3. The high powered leveling shock absorbing suspension of claim 2 wherein: the digital variable-diameter valve (29) consists of a compression cone valve (45) and a tension cone valve (40), the compression cone valve is assembled in a cone shape and matched and sealed in a relevant cone hole of the digital cone valve, a pressure valve spring (44) is sleeved on the outer ring of a cylinder body of the compression cone valve, a pressure valve pretensioner (38) and the pressure valve spring are assembled in the same hole, and 4 pressure valve air holes (39) are uniformly distributed on the periphery of the inner ring of the pressure valve pretensioner; the axial center of the compression cone valve (44) is provided with a constant through hole (46); the stretching cone valve (40) is assembled in a relevant cone hole of the digital reducing valve in a cone shape and is sealed in a matching mode, a pull valve spring (41) is sleeved on the outer ring of a cylinder body of the stretching cone valve, a pull valve pretensioner (43) and the pull valve spring are assembled in the same hole, and 4 pull valve air holes (42) are uniformly distributed on the periphery of the inner diameter of the pull valve pretensioner.

4. The high powered leveling shock absorbing suspension of claim 1 wherein: the shock absorber (4) is different from the front to the back, and a bracket (5) and a hanging ring (8) which are used for being fastened and assembled with a host are respectively installed at the lower end of the shock absorber.

5. The high powered leveling shock absorbing suspension of claim 1 wherein: the inner diameter of the upper end of the guider (20) is provided with a framework oil seal (33), an oil groove (34) is arranged below the oil seal, the inner diameter of the lower end of the guider (20) is provided with a framework air seal (36) and an air seal pressing ring (35), a piston rod guide sleeve (37) is in interference fit in the middle axis hole, and the cylinder inflation valve (21) is sleeved on the outer ring of the lower end of the guider (20).

6. The high powered leveling shock absorbing suspension of claim 1 wherein: the inner cavities of the main air chamber (2), the auxiliary air chamber (1) and the shock absorber (4) are filled with compressed nitrogen.

7. The high powered leveling shock absorbing suspension of claim 1 wherein: the bottom of the main air chamber (2) is provided with an air chamber inflation hole (12) and an air chamber inflation valve (11), and the air chamber inflation valve (11) is provided with an outer framework (14).

Technical Field

The invention relates to an automobile suspension structure, in particular to a high-mobility leveling and vibration absorbing suspension.

Background

In practical application, a car suspension cannot overcome the rise and fall value and the vibration rate of a bumpy road, so that a normally running car needs to be decelerated and vibration avoided as long as the car meets the bumpy road, because the maneuvering performance of a suspension spring is limited by the elasticity of compression loading and extension unloading. Each trip of the wheel on a bumpy road surface will cause the suspension spring to be loaded by compression at the lower end and to release energy to the upper end to impact the vehicle body. Each down-jump stroke of the wheels on a bumpy road surface causes the suspension spring to be stretched and unloaded due to the lower end of the suspension spring, so that the vehicle body falls down along with the wheels synchronously, and the vehicle body is bumpy and vibrates violently. The telescopic variable load is an elastic mechanics law which cannot be violated by any type of suspension spring, and only the variable load rate and the variable stiffness of the electric control air spring are superior to those of a steel wire spring, and the electric control air spring has no mechanical dynamics of telescopic leveling on a bumpy road surface. The suspension shock absorber can not only lose the dynamic vibration absorption capacity on bumpy road surfaces, but also limit the expansion and contraction mobility of the suspension spring, and because the suspension spring needs the piston to be linked to damp and absorb vibration during expansion and contraction leveling, the suspension spring and the piston are installed in parallel in the structure to realize dynamic synchronization. The aperture flow of the piston damping valve is set according to the requirements of the conventional road surface, and no matter the mechanical valve or the electric control valve has no maneuvering program for synchronously reducing the diameter with the piston resistance value, so that the reciprocating maneuvering of the piston on a bumpy road surface is lost due to the viscous flow of a valve hole, and the telescopic maneuvering of a suspension spring which is arranged in parallel with the piston is also lost.

Disclosure of Invention

The invention aims to provide a high-maneuverability leveling shock-absorbing suspension.

The purpose of the invention is realized by the following ways: a high maneuvering leveling shock-absorbing suspension comprises a main air chamber, an auxiliary air chamber and a shock absorber;

the outer layer of the main air chamber is an oil-proof adhesive layer, the inner layer of the main air chamber is a cord thread airtight adhesive layer, and a plurality of telescopic force stabilizing rings are arranged between the two layers of structures; the upper port of the main air chamber is connected with the auxiliary air chamber, an air chamber partition plate is arranged between the two chambers, and an elastic reducing valve is arranged on the air chamber partition plate; the upper and lower ports of the main air chamber are provided with main air chamber outer frameworks, and the upper and lower ports of the dust cover are assembled on the outer ring of the main air chamber outer framework; a piston rod is arranged in the main air chamber, and a braking energy releaser is sleeved on the outer ring of the piston rod;

the auxiliary air chamber is fixed at the upper part of the main air chamber, and the top of the auxiliary air chamber is provided with a loading screw rod which is tightly assembled with the host assembling seat;

the shock absorber comprises a cylinder barrel and a piston rod; the cylinder wall of cylinder upper end is equipped with the cylinder and aerifys the hole, and cylinder inner chamber top is equipped with the director, and the piston rod head inserts in main air chamber and fixes with the axle center hole of air chamber baffle, and the piston rod middle section is installed in the axle center hole of director, and the piston rod tail end is equipped with two-way air vent with the upper end axle center hole fastening assembly of piston, the inside two-way air vent that is equipped with of piston rod tail section, and the stroke stopper suit is in.

As a further optimization of the invention, the groove on the outer ring of the piston is provided with an O-shaped sealing ring, the lower groove is provided with a lubricating guide belt, and the inner diameter of the lower end of the piston is provided with a digital reducing valve and a valve sealing ring.

As a further optimization of the invention, the digital variable diameter valve consists of a compression cone valve and a tension cone valve, the compression cone valve is assembled in a cone shape and matched and sealed in a relevant cone hole of the digital cone valve, a pressure valve spring is sleeved on a cylinder outer ring of the compression cone valve, a pressure valve pretensioner is assembled with the pressure valve spring in the same hole, and 4 pressure valve air holes are uniformly distributed on the periphery of an inner ring of the pressure valve pretensioner; a normal through hole is formed in the axis of the compression cone valve; the stretching cone valve is assembled in a relevant cone hole of the digital reducing valve by a cone, the stretching cone valve is matched and sealed, the pull valve spring is sleeved on the outer ring of a cylinder body of the stretching cone valve, the pull valve pretensioner and the pull valve spring are assembled in the same hole, and 4 pull valve air holes are uniformly distributed on the periphery of the inner diameter of the pull valve pretensioner.

As a further optimization of the invention, the lower ends of the shock absorbers are respectively provided with a bracket and a hanging ring which are used for being fixedly assembled with a host machine according to different front and back.

As a further optimization of the invention, the inner diameter of the upper end of the guider is provided with a framework oil seal, an oil groove is arranged below the oil seal, the inner diameter of the lower end of the guider is provided with a framework air seal and an air seal compression ring, the middle axial hole is internally provided with a piston rod guide sleeve in an interference fit mode, and the cylinder inflation valve is sleeved on the outer ring of the lower end of the guider.

As a further optimization of the invention, the inner cavities of the main air chamber, the auxiliary air chamber and the shock absorber are filled with compressed nitrogen.

As a further optimization of the invention, the bottom of the main air chamber is provided with an air chamber inflation hole and an air chamber inflation valve, and the air chamber inflation valve is provided with an outer framework.

The invention relates to a high-mobility leveling and vibration absorbing suspension, which is specially designed with a telescopic force stabilizing technology, and a shock absorber is designed with a digital variable diameter valve and a synchronous variable diameter program, so that the car suspension can automatically adapt to leveling and vibration absorbing of all road conditions. The auxiliary air chamber is formed by punching, welding and forming cold-rolled steel plates, the effective volume of the auxiliary air chamber is 60% of that of the main air chamber, the compression overload rate of the main air chamber is synchronously absorbed by 60% through the elastic reducing valve, and the extension unloading rate of the main air chamber is synchronously supplemented by 60%. The main air chamber is a motor-driven element for telescopic leveling, and realizes the matching value of the height of the vehicle body and the bearing of the vehicle body by the dynamic regulation and control of stable volume air pressure and a telescopic stabilizing ring. The outer layer of the main air chamber is an oil-proof rubber layer, the inner layer of the main air chamber is a cord thread airtight rubber layer, and the telescopic force stabilizing ring is arranged between the oil-proof rubber layer and the cord thread airtight rubber layer. The telescopic force stabilizing ring consists of 4 to 6 telescopic springs, monitors the bearing value of the main air chamber in real time by using a set telescopic force value, and synchronously regulates and controls the overload rate and the unloading rate of the main air chamber by matching with the auxiliary air chamber. When the compression overload rate of the main air chamber is higher than the bearing value by 13%, the telescopic force stabilizing ring controls the main air chamber to expand outwards in real time to realize capacity increasing and pressure reducing, and when the extension unloading rate of the main air chamber is lower than the bearing value by 13%, the telescopic force stabilizing ring controls the main air chamber to reduce the diameter inwards in real time to realize capacity reducing and pressure increasing. The digital variable diameter valve takes the reciprocating resistance value of the piston as a synchronous control target, and each reciprocating resistance value of the piston is synchronously provided with an accurate variable diameter section through stroke displacement and pre-tightening setting of the digital cone valve, so that the forming probability of bumping and vibrating of a vehicle body in running under various road conditions is ensured. The suspension replaces the tail end sensing control program of an electric control suspension with a synchronous control program of mechanical dynamics, so that the synchronous rate and the precision of leveling and vibration absorption are several times higher than those of the electric control suspension.

Drawings

The invention is described in further detail below with reference to the accompanying drawings:

FIG. 1 is a view showing an external appearance of a front suspension according to the present invention;

FIG. 2 is a view showing the external appearance of the rear suspension according to the present invention;

FIG. 3 is a schematic view of the structure of the main and auxiliary chambers of the present invention;

FIG. 4 is a schematic structural view of the damper of the present invention;

FIG. 5 is a schematic view of the construction of the guide of the present invention;

FIG. 6 is a schematic structural diagram of a digital variable diameter valve according to the present invention;

in the figure, an auxiliary air chamber 1, a main air chamber 2, a telescopic force stabilizing ring 3, a shock absorber 4, a bracket 5, a main air chamber outer framework 6, a dust cover 7, a hanging ring 8, a loading screw 9, an elastic reducing valve 10, an air chamber inflation valve 11, an air chamber inflation hole 12, an air chamber base 13, an inflation valve outer framework 14, a piston rod 15, a cord airtight rubber layer 16, an oil-proof rubber layer 17, a brake energy releaser 18, an air chamber partition plate 19, a guider 20, a cylinder inflation valve 21, a stroke limiter 22, a two-way vent hole 23, a set screw 24, a 0-shaped sealing ring 25, a lubrication guide belt 26, a cylinder 27, a cylinder base 28, a digital reducing valve 29, a valve sealing ring 30, a piston 31, an inflation hole 32, a framework oil seal 33, an oil groove 34, an air seal pressing ring 35, a framework air seal 36, a piston rod guide sleeve 37, a valve pretensioner 38, a valve air hole 39, a tension cone valve, a valve pretensioner 43 is pulled, a valve spring 44 is pressed, a cone valve 45 is compressed, and a normally open hole 46 is formed.

Detailed Description

As shown in figures 1-3, the high maneuvering leveling shock-absorbing suspension of the invention comprises a main air chamber 2, an auxiliary air chamber 1 and a shock absorber 4, wherein the outer layer of the main air chamber is an oil-proof glue layer 17, the inner layer is a cord thread airtight glue layer 16, a telescopic force stabilizing ring 3 comprises a plurality of telescopic springs arranged between the oil-proof glue layer and the cord thread airtight glue layer, and the main air chamber 2 and the telescopic force stabilizing ring 3 are maneuvering essential components for stretching and leveling and stretching and stabilizing force. The lower port of the main air chamber 2 is assembled with an air chamber base 13, the upper port is assembled with the auxiliary air chamber 1, an air chamber partition plate 19 is welded at the lower end of the auxiliary air chamber and is provided with an elastic reducing valve 10, the upper port and the lower port of the main air chamber are provided with a main air chamber outer framework 6, and the upper port and the lower port of the dust cover 7 are assembled on the outer ring of the main air chamber outer framework 6. The auxiliary air chamber 1 is arranged at the upper end of the main air chamber 2, and the auxiliary air chamber synchronously absorbs the compression overload rate of the main air chamber and synchronously supplements the extension unloading rate of the main air chamber through the expansion pressure difference ratio of the elastic reducing valve 10 and the main air chamber and the auxiliary air chamber. The main air chamber 2, the auxiliary air chamber 1 and the inner cavity of the shock absorber are filled with compressed nitrogen, and the air chamber inflation valve 11 and the cylinder barrel inflation valve 21 after inflation have the permanent non-leakage air pressure self-tightening function. An air chamber inflation hole 12 is arranged at the bottom of the main air chamber, an air chamber inflation valve 11 is arranged on the main air chamber, and an outer framework 14 is arranged on the air chamber inflation valve. The upper end of the piston rod 15 is welded with the axial hole of the air chamber partition plate 19, and the braking energy releaser 18 is sleeved on the outer ring of the piston rod 15 and used for controlling the nodding state of the vehicle body in emergency braking. The lower end of the loading screw rod 9 is welded with the upper end of the auxiliary air chamber 1, and the loading screw rod is tightly assembled with the host assembling seat. The cylinder base 28 is welded to the bottom of the cylinder.

As shown in FIG. 4, the damper 4 is composed of a cylinder 27 and a piston rod 15, the guide 20 is assembled at the inner diameter of the upper end of the cylinder and fixed by the cylinder with inward sealing, the piston rod 15 is assembled in the axial hole of the guide, the lower end of the piston rod 15 is tightly assembled with the axial hole of the upper end of the piston 31, and a set screw 24 is arranged for preventing loosening. The lower end of the piston rod is provided with a bidirectional vent hole 23, and a stroke limiter 22 is sleeved at the set position of the piston rod and fixed by spot welding.

As shown in fig. 5, a framework oil seal 33 is installed on the inner diameter of the upper end of the guider 20, an oil groove 34 is arranged below the oil seal, a framework air seal 36 and an air seal pressure ring 35 are assembled on the inner diameter of the lower end, and a piston rod guide sleeve 37 is assembled in the middle axial hole in an interference manner and used for reciprocating guide of the piston rod. The cylinder inflation valve 21 is sleeved on the lower end outer ring of the guider, and the cylinder inflation hole 32 is arranged on the upper end cylinder wall of the cylinder 27.

As shown in FIG. 6, the O-shaped sealing ring 25 is assembled in the groove on the outer ring of the piston 31, the lubricating guide belt 26 is assembled in the lower groove, and the digital reducing valve 29 and the valve sealing ring 30 are installed on the inner diameter of the lower end of the piston. The digital variable diameter valve 29 consists of a compression cone valve 45 and a tension cone valve 40, the compression cone valve is assembled in a cone shape and is matched and sealed in relevant cone holes of the digital cone valve, a pressure valve spring 44 is sleeved on the outer ring of a cylinder of the compression cone valve, a pressure valve pretensioner 38 and the pressure valve spring are assembled in the same hole, and 4 pressure valve air holes 39 are uniformly distributed on the periphery of the inner ring of the pressure valve pretensioner. The axial center of the compression cone valve 44 is provided with a constant through hole 46. The stretching cone valve 40 is assembled in a relevant cone hole of the digital reducing valve in a cone shape and is matched and sealed, a pull valve spring 41 is sleeved on the outer ring of a cylinder body of the stretching cone valve, a pull valve pretensioner 43 is assembled with the pull valve spring in the same hole, and 4 pull valve air holes 42 are uniformly distributed on the periphery of the inner diameter of the pull valve pretensioner. The compression cone valve 45 and the extension cone valve 40 synchronously provide accurate variable diameter cross sections for each reciprocating resistance value of the piston 31 by setting pre-tightening and stroke displacement during working.

The lower end of the front shock absorber 4 is welded with a bracket 5, the lower end of the rear shock absorber 4 is welded with a hanging ring 8, and the bracket and the hanging ring are used for fastening and assembling with a host.

The working principle of the high-mobility leveling vibration-absorbing suspension is as follows, the upper end screw rod, the lower end support, the hanging ring and the overall height of the suspension completely refer to the assembly size and technical parameters of a matched car, the diameter of a suspension spring is reduced by 10% compared with that of an original accessory, and the height of the suspension spring is reduced by 15% compared with that of the original accessory, so that a better assembly space is obtained. After the suspension is assembled with a car, the main air chamber realizes the matching value of the height of the car body and the bearing of the car body through stable volume air pressure and dynamic regulation and control of the telescopic force stabilizing ring. The slight damping of the through holes 46 inhibits the rate of vibration of the vehicle body by air when the wheel is not subjected to a large take-off and landing maneuver on a smooth road. When the wheels jump up and down when driving on a bumpy road, the main air chamber 2 is inevitably severely compressed and stretched, and the auxiliary air chamber 1 synchronously absorbs the overload rate of the main air chamber to balance the air pressure due to the low pressure condition in the compression stroke. The auxiliary air chamber synchronously supplements the unloading rate of the main air chamber to air pressure balance under the condition of high pressure in the extension stroke. When the telescopic overload rate of the main air chamber is higher than 13% of the bearing value, the telescopic force stabilizing rings 3 are synchronously expanded and decompressed, and when the stretching unloading rate of the main air chamber is lower than 13% of the bearing value, the synchronous diameter reduction and pressurization are carried out. When the resistance of the piston 31 of the shock absorber 4 is not enough to open the pretightening force of the digital cone valve, the set damping of the normally-open hole 46 can absorb the micro-vibration rate of the vehicle body, once the road surface has a rise-fall value to cause the wheel to jump up and down, the rise-fall value of the wheel can synchronously drive the piston to generate reciprocating air pressure resistance, when the compression resistance of the piston opens the compression cone valve, the stretching cone valve is sealed by air pressure and pretightening, and the compression cone valve synchronously provides an accurate variable diameter section by setting the pretightening force and stroke displacement. When the stretching cone valve is opened by the stretching resistance of the piston, the compression cone valve is sealed by air pressure and pretension, and the stretching cone valve synchronously provides an accurate variable diameter section by setting pretension and stroke displacement. Because the maneuvering program of the main air chamber 2 of the suspension is to stretch out and draw back in real time and level and stretch out and draw back steadily in step for each rise and fall value of the road surface, and the maneuvering program of the digital reducing valve is to change the diameter of each reciprocating resistance value of the piston in step and accurately, therefore, the suspension can keep the same speed per hour and the same comfort for the matching car no matter on a smooth road surface or a bumpy road surface. The leveling rate and the vibration absorption rate of the suspension on a bumpy road are 3 times of those of an electric control suspension and 4 times of those of a mechanical suspension.