Air suspension compressor piston drive device based on a slider guide mechanism

Abstract

The utility model relates to air suspension system technical field discloses a kind of air suspension compressor piston driving devices based on slider guide rail mechanism, including valve body;Its accommodating chamber is equipped with piston assembly;Driving motor is fixedly connected with valve body, and its motor output shaft extends to accommodating chamber;Movement conversion mechanism is connected between piston assembly and motor output shaft;It includes eccentric mechanism connected with motor output shaft;Linkage slider is connected with eccentric mechanism;Sliding component is cooperated with linkage slider, and movement is transmitted to piston assembly;Sliding component has first direction and second direction different in movement direction;The circumferential rotary motion of eccentric mechanism is converted into the linear reciprocating motion of sliding component by linkage slider, and piston assembly is driven to work. Adopt the way of slider and guide rail combination, directly convert the rotary motion of motor into pure linear reciprocating motion, completely eliminate the lateral force of piston, to improve efficiency, reduce wear and noise.

Description

Technical Field

[0001] This utility model relates to the field of air suspension system technology, specifically to a compressor for an air suspension system, and more particularly to a transmission mechanism for driving the compressor piston to perform linear reciprocating motion. Background Technology

[0002] Air suspension systems use air springs instead of traditional coil springs. By controlling the air pressure of the air springs, the vehicle height and suspension stiffness can be adjusted, allowing the vehicle to adapt to various complex road surfaces and providing better ride comfort for the driver and passengers. Air suspension systems are widely used in modern luxury buses, commercial trucks, and high-end passenger cars. Its core component is the air compressor, which is responsible for generating compressed air to adjust the suspension height and stiffness.

[0003] Currently, most automotive air suspension systems use reciprocating piston compressors. Traditional piston-driven mechanisms primarily rely on crankshaft-connecting rods. The motor's rotational motion is converted into planar motion of the connecting rod via the crankshaft, ultimately driving the piston in linear reciprocating motion. However, in this traditional structure, the connecting rod's force direction is not entirely aligned with the piston's motion direction, generating a lateral force perpendicular to the cylinder wall. This leads to increased friction between the piston and cylinder wall, reduced mechanical efficiency, increased wear and heat generation, and shortened lifespan of the piston rings and cylinder.

[0004] Therefore, there is an urgent need for a piston drive mechanism to eliminate lateral forces and solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an air suspension compressor piston drive device based on a slider guide rail mechanism.

[0006] Compared to existing technologies, this utility model provides an air suspension compressor piston drive device based on a slider guide mechanism, comprising: The valve body has a receiving chamber; the piston assembly is assembled in the receiving chamber. A drive motor is fixedly connected to the valve body, and the motor output shaft of the drive motor extends into the receiving chamber; A motion conversion mechanism is connected between the piston assembly and the motor output shaft; it includes, An eccentric mechanism is connected to the motor output shaft; The linkage slider is connected to the eccentric mechanism; A sliding component cooperates with a linkage slider and transmits motion to the piston assembly; the sliding component has a first direction and a second direction with different directions of motion, the linkage slider moves along the first direction of the sliding component, and the sliding component moves along the second direction.

[0007] In this mechanism, the circular rotation motion of the eccentric mechanism is converted into the linear reciprocating motion of the sliding component through the linkage slider, which drives the piston assembly to operate.

[0008] According to this utility model, the sliding component further includes a large slider and a guide rail assembly that are slidably connected to each other; the piston assembly is fixedly connected to the large slider; the large slider has a first groove in a first direction, the guide rail assembly has a second groove in a second direction, the linkage slider reciprocates linearly along the first groove, and the large slider reciprocates linearly along the second groove.

[0009] According to this utility model, the linkage slider is a T-shaped small slider that reciprocates along the first slide groove.

[0010] According to this utility model, the large slider is further slidably connected to the guide rail assembly via a buckle or collar.

[0011] According to this utility model, the guide rail assembly further includes at least two parallel guide rails.

[0012] According to this utility model, the cross-sectional shape of the guide rail includes, but is not limited to, circular, elliptical, rectangular, and trapezoidal shapes.

[0013] According to this utility model, the piston assembly further includes a piston connecting rod and a cylinder, one end of the piston connecting rod is connected to a large slider, and the other end extends into the cylinder on the corresponding side.

[0014] According to this utility model, the connection method between the piston rod and the large slider includes, but is not limited to, hinge, riveting, snap-fit ​​connection, and integrated design.

[0015] According to this utility model, the eccentric mechanism is further described as an eccentric turntable with an eccentricity e.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a combination of slider and guide rail to directly convert the rotational motion of the motor into pure linear reciprocating motion, completely eliminating the lateral force of the piston, thereby improving efficiency and reducing wear and noise.

[0017] This invention, through the rigid constraint of the guide rail, ensures that the piston connecting rod is always subjected to only axial tension or pressure, fundamentally eliminating the lateral force on the cylinder wall, significantly reducing friction loss, and improving mechanical efficiency and component life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the air suspension compressor piston drive device based on the slider guide rail mechanism of this utility model; Figure 2This is an exploded schematic diagram of the piston drive device for an air suspension compressor based on a slider guide mechanism according to this utility model. Figure 3 This is a top view of the structure of the present invention installed inside the compressor; Figure 4 for Figure 3 A schematic diagram of the AA cross-sectional structure; Figure 5 for Figure 3 Schematic diagram of the BB cross-sectional structure; Figure 6a This is a schematic diagram of the first rotation angle of the eccentric mechanism of this utility model; Figure 6b This is a schematic diagram of the second rotation angle of the eccentric mechanism of this utility model. Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 and Figure 2 As shown, this application embodiment provides an air suspension compressor piston drive device based on a slider guide mechanism, which includes a valve body 100 with a receiving chamber, in which a piston assembly is assembled. A drive motor 101 is fixed to the side surface of the valve body 100 by bolts, and end caps 103 are also provided on the two opposite end faces of the drive motor 101. The motor output shaft 104 of the drive motor extends into the receiving chamber and is connected to the piston assembly through a motion conversion mechanism. The valve body 100 is preferably a valve block. When the drive motor 101 is started, it drives the piston assembly to perform intake and compression operations through the motion conversion mechanism.

[0020] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the motion conversion mechanism includes a flywheel balance block (not shown) mounted on the motor output shaft 104. An eccentric mechanism 200 with an eccentricity e is fitted around the outer periphery of the motor output shaft 104. The eccentric mechanism 200 is mounted in the through hole of the linkage slider 105 via a positioning pin, wherein the positioning pin and the through hole are coaxially engaged. It also includes a sliding component connected to the piston assembly. The linkage slider 105 cooperates with the sliding component to change the direction of movement of the sliding component, thereby driving the piston assembly to perform intake and compression operations. Preferably, the eccentric mechanism 200 is an eccentric turntable, and the linkage slider 105 is a T-shaped small slider with a through hole along its longitudinal direction for the positioning pin to be inserted.

[0021] The sliding component includes a large slider 106 and a guide rail assembly that are slidably connected to each other; a piston assembly is fixedly connected to the large slider 106; the large slider 106 has a first slide groove 1061, the guide rail assembly has a second slide groove 1071, the linkage slider 105 reciprocates linearly within the first slide groove 1061, and the large slider 106 reciprocates linearly along the second slide groove 1071, wherein the length direction of the first slide groove 1061 is along... Figure 6a and Figure 6b The direction shown is for vertical guidance, and the length direction of the second slide 1071 is along... Figure 6a and Figure 6b The direction indicated is left and right guidance. The drive motor 101 rotates, causing the eccentric mechanism 200 to rotate. The eccentric mechanism 200 transmits the rotational motion to the linkage slider 105, causing the linkage slider 105 to move up and down along the first slide groove 1061. This causes the large slider 106 to move left and right along the second slide groove 1071, thereby causing the piston assembly connected to the large slider 106 to move left and right, realizing the intake and compression operations. Preferably, the large slider 106 has latches at both its upper and lower ends that connect to the guide rail assembly, achieving a sliding fit between the large slider 106 and the guide rail assembly. These latches can also be replaced with collars, with the inner diameter of the collar matching the outer diameter of the guide rail assembly, achieving a sliding fit between the two.

[0022] Specifically, the guide rail assembly includes two parallel guide rails 107, and the large slider 106 has at least two latches, each slidably connected to its corresponding guide rail 107. The large slider 106 moves along the length of the guide rail 107. The shape of the guide rail cross-section includes, but is not limited to, a circle, an ellipse, a rectangle, and a trapezoid. The guide rails can be arranged on the upper and lower sides, above, or below the large slider 106.

[0023] The piston assembly includes piston connecting rods 108 respectively disposed on two opposing surfaces of the large slider 106. The piston connecting rods 108 and cylinder 109 are precisely matched to form a linear sliding pair. The cylinder 109 and its cylinder head 110 are fixed to the valve body 100. The connection between the piston connecting rods 108 and the large slider 106 includes, but is not limited to, hinge, riveting, snap-fit ​​connection, and integrated design.

[0024] Specifically, cylinder mounting holes are provided on the two opposite end faces of the valve body 100, and the cylinders 109 on both sides are respectively embedded and fixed in the corresponding cylinder mounting holes.

[0025] When the drive motor 101 is powered on and rotates, the eccentric mechanism 200 on the motor output shaft 104 drives the linkage slider 105 to make a circular motion with a radius of e; the linkage slider 105 drives the large slider 106 to move. Under the constraint of the guide rail 107, the large slider 106 converts the circular motion into a linear reciprocating motion with a stroke of 2e, thereby driving the piston connecting rods 108 on both sides to perform air intake and compression operations in the corresponding cylinders 109.

[0026] The working principle of this invention is as follows: The motor starts, driving the eccentric mechanism to rotate at a constant speed. The eccentric pin on the eccentric mechanism performs circular motion, thereby driving the slider to move. Since the slider is confined within the guide rail and can only move linearly, the circular motion of the eccentric mechanism is forcibly converted into the linear reciprocating motion of the slider along the guide rail. Finally, the slider, through the piston connecting rod, pushes the piston to perform a pure, lateral-force-free linear reciprocating motion within the cylinder, completing the intake and compression processes.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An air suspension compressor piston drive device based on a slider guide mechanism, characterized in that, include, The valve body has a receiving chamber; the piston assembly is assembled in the receiving chamber. A drive motor is fixedly connected to the valve body, and the motor output shaft of the drive motor extends into the receiving chamber; A motion conversion mechanism is connected between the piston assembly and the motor output shaft; It includes, An eccentric mechanism is connected to the motor output shaft; The linkage slider is connected to the eccentric mechanism; A sliding component cooperates with a linkage slider and transmits motion to the piston assembly; the sliding component has a first direction and a second direction with different directions of motion, the linkage slider moves along the first direction of the sliding component, and the sliding component moves along the second direction; In this mechanism, the circular rotation motion of the eccentric mechanism is converted into the linear reciprocating motion of the sliding component through the linkage slider, which drives the piston assembly to operate.

2. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 1, characterized in that, The sliding component includes a large slider and a guide rail assembly that are slidably connected to each other; a piston assembly is fixedly connected to the large slider; the large slider has a first groove in a first direction, the guide rail assembly has a second groove in a second direction, the linkage slider reciprocates linearly along the first groove, and the large slider reciprocates linearly along the second groove.

3. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 2, characterized in that, The linkage slider is a small T-shaped slider that reciprocates along the first slide groove.

4. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 2, characterized in that, The large slider is slidably connected to the guide rail assembly via a buckle or collar.

5. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 2, characterized in that, The guide rail assembly includes at least two parallel guide rails.

6. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 5, characterized in that, The cross-sectional shape of the guide rail includes, but is not limited to, circular, elliptical, rectangular, and trapezoidal shapes.

7. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 2, characterized in that, The piston assembly includes a piston connecting rod and a cylinder. One end of the piston connecting rod is connected to a large slider, and the other end extends into the cylinder on the corresponding side.

8. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 7, characterized in that, The connection methods between the piston connecting rod and the large slider include, but are not limited to, hinge, riveting, snap-fit ​​connection, and integrated design.

9. The air suspension compressor piston drive device based on a slider guide mechanism as described in claim 1, characterized in that, The eccentric mechanism is an eccentric turntable with an eccentricity e.

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