A molecular spring suspension that adapts to load changes

Abstract

This invention discloses a molecular spring suspension that adapts to load changes, comprising a damping chamber piston rod, a damping chamber, a damping piston, a load adjusting valve module, a molecular spring chamber piston rod, molecular spring material, a molecular spring chamber, and a sealing ring. The damping piston reciprocates up and down with the damping chamber piston rod to generate damping force; the damping chamber is filled with hydraulic oil; the downward movement of the damping chamber piston rod forces the hydraulic oil in the damping chamber to push the molecular spring chamber piston rod downward synchronously; the load adjusting valve module consists of a valve body and a valve core; rotating the valve core changes the oil passage path of the hydraulic oil within the valve body, thus adapting to different loads; the molecular spring chamber piston rod is used to adapt to different load weights; the molecular spring chamber is filled with molecular springs. This invention is used in automotive suspensions, especially suitable for truck bodies. The design of the load adjusting valve module ensures that the natural frequency of the molecular spring suspension does not change significantly when the load changes, thereby improving ride comfort.

Description

Technical Field

[0001] This invention relates to a molecular spring suspension that adapts to load changes, belonging to the field of automotive suspension design technology. Background Technology

[0002] The load-bearing capacity of a vehicle suspension changes its natural frequency, especially in commercial vehicle cargo compartments. When unloaded, the suspension bears a relatively small load due to the lack of cargo weight, requiring lower suspension stiffness. However, when fully loaded, the suspension bears a much larger load, necessitating higher stiffness to prevent excessive static deflection. Therefore, to meet the different stiffness requirements of unloaded and fully loaded truck cargo compartments, the suspension stiffness must be adaptable to load variations. Traditional leaf springs can adapt to load changes to some extent by adjusting parameters such as the number of leaves, leaf thickness, and stacking method, but they suffer from significant drawbacks such as high weight and poor ride comfort. Air springs can also adapt to load changes without significantly affecting ride comfort by adjusting the gas pressure within the air chamber, but rubber air chambers are prone to aging and have poor lateral stability. Therefore, there is an urgent need for innovative automotive suspension designs based on new materials and structures. Molecular springs are liquid-solid hybrid media that not only possess the excellent mechanical properties of air springs but also have significant advantages such as reliable structure and small size. Therefore, designing a novel automotive suspension based on molecular springs that can adapt to changes in the load of truck cargo compartments has significant practical implications. Summary of the Invention

[0003] The purpose of this invention is to provide a molecular spring suspension that adapts to load changes, thereby achieving integrated and lightweight design of automotive suspensions, promoting energy conservation and emission reduction in traditional fuel vehicles, and improving the driving range of electric vehicles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A molecular spring suspension adaptable to load changes includes a damping chamber piston rod, a damping chamber, a damping piston, a load adjusting valve module, a molecular spring chamber piston rod, molecular spring material, a molecular spring chamber, and a sealing ring. The top of the damping chamber piston rod connects to the vehicle frame, and the bottom connects to the damping piston. The damping chamber is a stepped cylindrical shell filled with hydraulic oil. As the damping piston reciprocates within the damping chamber with the damping chamber piston rod, the hydraulic oil repeatedly passes through the damping holes on the damping piston, generating the damping force required by the suspension. The downward movement of the damping chamber piston rod forces the hydraulic oil within the damping chamber to push the molecular spring chamber piston rod downwards synchronously. The load adjusting valve module consists of a valve body and a valve core. The valve core is a cylinder with a square groove on its outer end face. Three through holes are arranged along the axis of the cylinder, with the through hole axes at 120°. The valve body has three layers of holes from top to bottom. The upper hole connects to the damping chamber, the middle hole is used to introduce hydraulic oil into the valve core, and the lower hole is used to install piston rods of different diameter molecular spring chambers. Rotating the valve core can change the oil passage of hydraulic oil in the valve body, thereby realizing that the hydraulic oil acts on different molecular spring chamber piston rods, ultimately achieving the purpose of adapting to different loads. There are three molecular spring chamber piston rods in total, used to bear different load weights. The larger the diameter of the piston rod, the greater the load-bearing capacity. The molecular spring chamber is a metal shell with three through holes at the top. The shell is filled with molecular springs, and the sealed molecular springs are the source of the suspension elastic force. In order to ensure normal operation, each chamber needs to be sealed with a sealing ring.

[0006] The damping chamber piston rod is a cylinder. The top of the damping chamber piston rod is used to connect to the vehicle frame, and the bottom is provided with a journal. The damping piston is fastened to the journal by a nut.

[0007] The damping cavity is a stepped cylindrical shell with a through hole at the bottom edge and a boss at the top center. A central through hole is located at the center of the boss, and a sealing groove is located on the side of the central through hole.

[0008] The damping piston is provided with a damping hole. The damping piston is fixed to the bottom journal of the damping chamber piston rod by a nut. When the damping piston moves up and down with the damping chamber piston rod in the damping chamber, the hydraulic oil in the damping chamber repeatedly passes through the damping hole on the damping piston, thereby generating the damping force required by the suspension.

[0009] The load regulating valve module consists of a valve body and a valve core. The upper end of the load regulating valve module is fastened to the damping cavity, and the lower end is connected to the molecular spring cavity through piston rods of different diameters. The valve core is a cylinder with a square groove on the outer end face. Three through holes are set along the axis of the cylinder, and the axes of the three through holes are evenly distributed at 120°. Rotating the groove on the end face of the valve core controls the flow of hydraulic oil into the required valve core through hole. The valve body has three layers of holes from top to bottom. The upper layer of holes is connected to the damping cavity, the middle hole is used to introduce hydraulic oil into the valve core, and the lower layer of holes is used to install piston rods of different diameters of molecular spring cavities. Rotating the valve core introduces hydraulic oil into the required valve core through hole, so that the hydraulic oil can act on different molecular spring cavity piston rods, ultimately achieving the goal of adapting to different loads.

[0010] There are three molecular spring chamber piston rods, which are used to bear different load weights. The upper end of the molecular spring chamber piston rod is inserted into the corresponding size through hole in the lower layer of the valve body, and the lower end of the molecular spring chamber piston rod extends into the molecular spring chamber. The larger the diameter of the molecular spring chamber piston rod, the greater the load-bearing capacity of the molecular spring suspension.

[0011] The molecular spring cavity is a metal shell with three through holes at the top. The shell is filled with molecular springs, and the sealed molecular springs are the source of the suspension elastic force.

[0012] The molecular spring is a liquid-solid mixture composed of water and molecular spring material. When the sealed molecular spring is subjected to pressure, it stores mechanical energy, and when the external pressure is removed, the molecular spring releases the mechanical energy. The working principle is the same as that of a metal helical spring, but the molecular spring has advantages such as strong load-bearing capacity and light weight. Therefore, the molecular spring is more in line with the requirements of automotive suspension for elastic elements.

[0013] The sealing rings are used to seal each chamber.

[0014] The beneficial effects of this invention are as follows:

[0015] The present invention provides a molecular spring suspension that adapts to load changes. The design of its load adjustment valve module ensures that the natural frequency of the molecular spring suspension does not change significantly when the load changes, thereby improving ride comfort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a cross-sectional view of the piston rod in the damping chamber;

[0018] Figure 3 This is a cross-sectional view of the damping cavity;

[0019] Figure 4 This is a cross-sectional view of the piston damping.

[0020] Figure 5 This is a cross-sectional view of the variable load valve body;

[0021] Figure 6 This is a schematic diagram of a variable load valve core;

[0022] Figure 7 This is a cross-sectional view of the unloaded piston rod;

[0023] Figure 8 This is a cross-sectional view of the half-loaded piston rod;

[0024] Figure 9 A top view of the fully loaded piston rod;

[0025] Figure 10 This is a cross-sectional view of the molecular spring cavity;

[0026] Figure 11 This is a schematic diagram of force transmission under no-load conditions;

[0027] Figure 12 This is a schematic diagram of force transmission under half load.

[0028] Figure 13 This is a schematic diagram of force transmission under rated load;

[0029] In the diagram, 101-Damping cavity piston rod; 102-Junior journal; 2-First sealing ring; 301-Damping cavity; 302-Damping cavity bottom edge through hole; 303-Boss; 304-Damping cavity top through hole; 305-Damping cavity top through hole side sealing groove; 4-Second sealing ring; 501-Valve body; 502-Valve body top edge through hole; 503-First valve body middle through hole; 504-Second valve body middle through hole; 505-Third valve body middle through hole; 506-Valve body upper hole; 507-Valve body top sealing groove; 508-Valve core cavity; 509-Valve core cavity sealing groove; 510-Valve body lower unloaded hole; 511-Valve body lower half-loaded hole; 512-Valve body lower full-loaded hole; 513-Full-loaded hole seal. Groove; 514-Half-loaded hole sealing groove; 515-Unloaded hole sealing groove; 6-Unloaded piston rod; 7-Half-loaded piston rod; 8-Full-loaded piston rod; 9-Molecular spring; 1001-Molecular spring cavity; 1002-Unloaded through hole; 1003-Half-loaded through hole; 1004-Full-loaded through hole; 1005-Unloaded through hole sealing groove; 1006-Half-loaded through hole sealing groove; 1007-Full-loaded through hole sealing groove; 1008-Internal chamber; 11-Third sealing ring; 1201-Valve core; 1202-Valve core end face recess; 1203-First valve core through hole; 1204-Second valve core through hole; 1205-Third valve core through hole; 1301-Damping piston; 1302-Center through hole; 1303-Damping through hole. Detailed Implementation

[0030] The invention will now be further explained with reference to the accompanying drawings.

[0031] like Figure 1 The diagram shows a molecular spring suspension adapted to load changes according to the present invention, comprising a damping chamber piston rod, a damping chamber, a damping piston, a load adjusting valve module, a molecular spring chamber piston rod, molecular spring material, a molecular spring chamber, and a sealing ring. The top of the damping chamber piston rod is used to connect to the vehicle frame, and the bottom is used to connect to the damping piston. When the damping piston moves up and down with the damping chamber piston rod within the damping chamber, the hydraulic oil in the damping chamber repeatedly passes through the damping holes on the damping piston, thereby generating the damping force required by the suspension. The downward movement of the damping chamber piston rod forces the hydraulic oil in the damping chamber to push the molecular spring chamber piston rod downward synchronously. The load adjusting valve module consists of a valve body and a valve core. The valve core is a cylinder with a square groove on its outer end face. Three through holes are provided along the axis of the cylinder, with the through hole axes at 120°. The valve body has three layers of holes from top to bottom; the upper layer of holes communicates with the damping chamber, and the middle layer... The first hole is used to introduce hydraulic oil into the valve core, and the second hole is used to install piston rods of different diameter molecular spring chambers. Rotating the valve core changes the oil passage of the hydraulic oil within the valve body, thus allowing the hydraulic oil to act on different molecular spring chamber piston rods, ultimately adapting to different loads. There are three molecular spring chamber piston rods, each bearing different load weights; the larger the piston rod diameter, the greater the load-bearing capacity. The molecular spring chamber is a metal shell with three through holes at the top, filled with molecular springs. These sealed molecular springs are the source of the suspension's elastic force. To ensure normal operation, each chamber needs to be sealed with a sealing ring. This invention is used in automotive suspensions, especially suitable for truck bodies. The design of the load adjustment valve module ensures that the natural frequency of the molecular spring suspension does not change significantly with load variations, thereby improving ride comfort.

[0032] like Figure 2 As shown, the damping chamber piston rod 101 is a cylinder. The top of the damping chamber piston rod 101 is used to connect to the frame, and the bottom is provided with a journal 102. The damping piston 1301 is fastened to the journal 102 by a nut.

[0033] like Figure 3 As shown, the damping cavity 301 has a bottom edge through hole 302 at the bottom and a boss 303 at the top center. The boss 303 has a top through hole 304 at its center and a top sealing groove 305 on the side of the top through hole 304. The first sealing ring 2 is built into the top through hole sealing groove 305 to seal the piston rod 101 of the damping cavity.

[0034] like Figure 4As shown, the damping piston 1301 is provided with a central through hole 1302 and a damping through hole 1303. The damping piston 1301 is fixed to the bottom journal 102 of the damping chamber piston rod 101 by a nut. When the damping piston 1301 moves up and down with the damping chamber piston rod 101 in the damping chamber 301, the hydraulic oil in the damping chamber 301 repeatedly passes through the damping through hole 1303 on the damping piston 1301, thereby generating the damping force required by the suspension.

[0035] like Figure 5-6 As shown, the load regulating valve module consists of Figure 5 Valve body 501 and Figure 6 The valve core 1201 is composed of a load regulating valve module. The upper end of the load regulating valve module is fastened to the damping cavity 301, and the lower end is connected to the molecular spring cavity 1001 through the unloaded piston rod 6, the half-loaded piston rod 7, and the full-loaded piston rod 8. The valve core 1201 is a cylinder with a square groove 1202 on the outer end face of the cylinder. Three through holes are arranged sequentially along the axis of the cylinder, namely the first valve core through hole 1203, the second valve core through hole 1204, and the third valve core through hole 1205. The axes of the three through holes are evenly distributed at 120°. Rotating the groove 1202 on the end face of the valve core controls the flow of hydraulic oil into the desired valve core through hole. The valve body 501 has three layers of holes from top to bottom. The upper hole 506 of the valve body is connected to the damping cavity 301. The middle holes (i.e., the first valve body middle through hole 503, the second valve body middle through hole 504, and the third valve body middle through hole 505) are used to introduce hydraulic oil into the valve core through holes. (i.e., the first valve core through hole 1203, the second valve core through hole 1204, and the third valve core through hole 1205), the lower holes (i.e., the lower valve body unloaded hole 510, the lower valve body half-loaded hole 511, and the lower valve body full-loaded hole 512) are used to install molecular spring cavity piston rods of different diameters (i.e., unloaded piston rod 6, half-loaded piston rod 7, and full-loaded piston rod 8). The lower holes (i.e., the lower valve body unloaded hole 510, the lower valve body half-loaded hole 511, and the lower valve body full-loaded hole 512) are provided with sealing grooves (i.e., unloaded hole sealing groove 515, half-loaded hole sealing groove 514, and full-loaded hole sealing groove 513) on the side. The valve core cavity 508 is used to install the valve core 1201, and the valve core cavity sealing groove 509 is used for sealing the outside of the valve core. Rotating the valve core 1201 introduces hydraulic oil into the required valve core through hole, which can realize that the hydraulic oil acts on different molecular spring cavity piston rods, ultimately achieving the goal of adapting to different loads.

[0036] like Figure 7-9As shown, there are three piston rods in the molecular spring cavity: an unloaded piston rod 6, a half-loaded piston rod 7, and a full-loaded piston rod 8, which are used to bear different load weights. The upper end of the piston rod is inserted into the lower hole of the valve body 501 of the corresponding size (i.e., the lower unloaded hole 510, the lower half-loaded hole 511, and the lower full-loaded hole 512 of the valve body), and the lower end of the piston rod extends into the through hole at the top of the molecular spring cavity. The larger the diameter of the piston rod, the greater the load-bearing capacity of the molecular spring suspension.

[0037] like Figure 10 As shown, the molecular spring cavity 1001 is a metal shell with three through holes (i.e., unloaded through hole 1002, half-loaded through hole 1003, and full-loaded through hole 1004) at the upper end. The three through holes have different diameters, and sealing grooves (i.e., unloaded through hole sealing groove 1005, half-loaded through hole sealing groove 1006, and full-loaded through hole sealing groove 1007) are provided on the side of the through holes. The internal cavity 1008 of the molecular spring cavity is filled with molecular springs 9. The sealed molecular springs 9 are the source of the suspension elastic force.

[0038] like Figure 11 As shown in the figure, the arrows indicate the flow direction of the hydraulic oil and the working molecular spring chamber piston rod when under no-load pressure. At this time, the hydraulic oil can only flow through the first valve core through hole 1203 on the valve core 1201 to the no-load through hole 1002 at the top of the molecular spring chamber, and then push the no-load piston rod 6 downward.

[0039] like Figure 12 As shown in the figure, the arrows indicate the flow direction of the hydraulic oil and the working molecular spring chamber piston rod when under partial load pressure. At this time, the hydraulic oil can only flow through the second valve core through hole 1204 on the valve core 1201 to the top half-load through hole 1003 of the molecular spring chamber, and then push the half-load piston rod 7 downward.

[0040] like Figure 13 As shown in the diagram, the arrows indicate the flow direction of the hydraulic oil and the working molecular spring chamber piston rod when fully loaded and pressurized. At this time, the hydraulic oil can only flow through the third valve core through hole 1205 on the valve core 1201 to the full-load through hole 1004 at the top of the molecular spring chamber, and then push the full-load piston rod 8 downward.

[0041] In summary, this invention discloses a molecular spring suspension that adapts to load changes, comprising a damping chamber piston rod, a damping chamber, a damping piston, a load adjusting valve module, a molecular spring chamber piston rod, molecular spring material, a molecular spring chamber, and a sealing ring. The top of the damping chamber piston rod is used to connect to the vehicle frame, and the bottom is used to connect to the damping piston. When the damping piston reciprocates up and down within the damping chamber along with the damping chamber piston rod, the hydraulic oil in the damping chamber repeatedly passes through the damping holes on the damping piston, thereby generating the damping force required by the suspension. The downward movement of the damping chamber piston rod forces the hydraulic oil in the damping chamber to push the molecular spring chamber piston rod downward synchronously. The load adjusting valve module consists of a valve body and a valve core. The valve core is a cylinder with a square groove on its outer end face. Three through holes are provided along the axis of the cylinder, with the through hole axes at 120°. The valve body has three layers of holes from top to bottom; the upper layer of holes communicates with the damping chamber, and the middle layer... The first hole is used to introduce hydraulic oil into the valve core, and the second hole is used to install piston rods of different diameter molecular spring chambers. Rotating the valve core changes the oil passage of the hydraulic oil within the valve body, thus allowing the hydraulic oil to act on different molecular spring chamber piston rods, ultimately adapting to different loads. There are three molecular spring chamber piston rods, each bearing different load weights; the larger the piston rod diameter, the greater the load-bearing capacity. The molecular spring chamber is a metal shell with three through holes at the top, filled with molecular springs. These sealed molecular springs are the source of the suspension's elastic force. To ensure normal operation, each chamber needs to be sealed with a sealing ring. This invention is used in automotive suspensions, especially suitable for truck bodies. The design of the load adjustment valve module ensures that the natural frequency of the molecular spring suspension does not change significantly with load variations, thereby improving ride comfort.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A molecular spring suspension adapted to accommodate changes in load, characterised in that: Includes a damping chamber piston rod, a damping chamber, a damping piston, a load regulating valve module, a molecular spring chamber piston rod, a molecular spring, and a molecular spring chamber; The damping piston reciprocates up and down with the piston rod of the damping chamber to generate damping force; the damping chamber is filled with hydraulic oil; the downward movement of the piston rod of the damping chamber forces the hydraulic oil in the damping chamber to push the piston rod of the molecular spring chamber downward synchronously; the load regulating valve module includes a valve body and a valve core, the valve core is provided with at least two through holes of different diameters along the axis, and the axes of each through hole are at an angle. By rotating the valve core, the oil passage of hydraulic oil in the valve body is changed to adapt to different loads; at least two molecular spring chamber piston rods of different diameters are provided, and each oil passage in the valve body is equipped with a molecular spring chamber piston rod. The molecular spring chamber piston rods are used to bear different loads, and the larger the diameter of the molecular spring chamber piston rod, the greater the load-bearing capacity; the molecular spring chamber is filled with molecular springs; the damping chamber and the valve body are connected; the valve body and the molecular spring chamber are separated from each other, and the two are connected by the molecular spring chamber piston rods.

2. A molecular spring suspension adapted to changes in load according to claim 1, characterized in that: The top of the damping chamber piston rod is used to connect to the vehicle frame, and the bottom is used to connect to the damping piston.

3. A molecular spring suspension adaptable to load changes according to claim 1, characterized in that: The damping piston is fixed to the bottom of the piston rod of the damping cavity. The damping piston can generate damping force by moving up and down with the piston rod of the damping cavity.

4. A molecular spring suspension adaptable to load changes according to claim 1, characterized in that: The bottom edge of the damping cavity is fixedly connected to the top edge of the valve body. A central through hole is provided at the top center of the damping cavity. The central through hole is sealed to the piston rod of the damping cavity by a first sealing ring. The bottom edge of the damping cavity is sealed to the top edge of the valve body by a second sealing ring.

5. A molecular spring suspension adaptable to load changes according to claim 1, characterized in that: The main body of the valve core is located inside the valve body, with one end extending from the side of the valve body for adjusting the rotation of the valve core. The side of the valve body and the valve core are sealed by a third sealing ring. The main body of the valve core inside the valve body has three through holes of different diameters along the axis, and the axes of each through hole are at a 120° angle.

6. A molecular spring suspension adaptable to load changes according to claim 5, characterized in that: The valve body has three layers of holes from top to bottom. The upper hole is connected to the damping cavity, the middle hole is used to introduce hydraulic oil into the valve core, and the lower hole is used to install three molecular spring cavity piston rods of different diameters. Rotating the valve core can change the oil passage of hydraulic oil in the valve body, so that the hydraulic oil acts on the molecular spring cavity piston rods of different diameters to adapt to different loads.

7. A molecular spring suspension adaptable to load changes according to claim 6, characterized in that: The upper end of the molecular spring cavity piston rod is inserted into a through hole of corresponding size in the lower layer of the valve body, and the lower end of the molecular spring cavity piston rod extends into the molecular spring cavity. The larger the diameter of the molecular spring cavity piston rod, the greater the load-bearing capacity of the molecular spring suspension.

8. A molecular spring suspension adaptable to load changes according to claim 7, characterized in that: The molecular spring cavity is a metal shell with three through holes at the top. The three through holes are used to install molecular spring cavity piston rods of different sizes. The shell is filled with molecular springs.

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