Optimized structure of high-performance hydraulic suspension runner plate

Abstract

The invention belongs to the technical field of suspension, and particularly relates to an optimized structure of a high-performance hydraulic suspension runner plate, which comprises an upper runner plate with a liquid inlet formed in the top surface, a lower runner plate with a liquid outlet formed in the bottom surface, and an inertia channel arranged between the upper runner plate and the lower runner plate, and the cross-sectional area of two ends of the inertia channel is larger than that of the middle section of the inertia channel. The arrangement of a decoupling cavity is canceled, and the cross sectional areas of the two ends of the inertia channel are increased, so that the medium flow resistance at the end part of the inertia channel is reduced, and a medium quickly flows between the end part of the inertia channel and the upper and lower liquid chambers, so that the working conditions under high excitation and small amplitude are met; due to the fact that a decoupling cavity does not need to be arranged, the production cost and the size of the runner plate can be obviously reduced, and meanwhile the process is simplified.

Description

Technical Field

[0001] This invention belongs to the field of suspension technology, specifically relating to an optimized structure of a high-performance hydraulic suspension flow channel plate. Background Technology

[0002] The powertrain mounting system is mainly used to maintain a good motion posture of the powertrain during operation, prevent interference between the powertrain and surrounding components, and attenuate the motion excitation generated by the powertrain. Currently, the commonly used mounting types are bushing mounts, hydraulic mounts, and air mounts. Among them, hydraulic mounts often adopt the inertial channel-decoupling membrane type. This type of mount generally uses a flow channel plate to fix the decoupling membrane in the base, and then the flow channel plate is fixed to the base by a riveting process.

[0003] However, decoupling membranes rely on the cooperation between the decoupling cavity and the decoupling membrane to absorb small amplitude and high frequency excitation. Therefore, it is necessary to open grooves on the flow channel plate and set the decoupling membrane with sealing grooves. This not only increases the overall volume of the flow channel plate, but also increases the production cost of the flow channel plate and increases the complexity of the overall process.

[0004] In view of this, the present invention provides an optimized structure for a high-performance hydraulically mounted flow channel plate to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an optimized structure for a high-performance hydraulic suspension flow channel plate, comprising: an upper flow channel plate with an inlet on its top surface, a lower flow channel plate with an outlet on its bottom surface, and an inertial channel disposed between the upper flow channel plate and the lower flow channel plate, with its two ends respectively connected to the inlet and the outlet, wherein the cross-sectional area at both ends of the inertial channel is larger than the cross-sectional area of ​​its middle section.

[0006] As a preferred optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, the inertial channel includes a first channel located in the middle section, and a second channel and a third channel respectively connected to the two ends of the first channel.

[0007] As an optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, the end of the second channel is connected to the inlet, and the end of the third channel is connected to the outlet.

[0008] As an optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, the cross-sectional area of ​​the second channel gradually decreases from the inlet to the end of the first channel.

[0009] As an optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, the cross-sectional area of ​​the third channel gradually decreases from the outlet to the end of the first channel.

[0010] As a preferred optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, pressure valves are provided at both ends of the inertial channel and at the channel connection of its middle section.

[0011] As an optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, the pressure valve is a diaphragm pressure valve.

[0012] As a preferred optimized structure of the high-performance hydraulically suspended flow channel plate of the present invention, the upper flow channel plate and the lower flow channel plate are assembled together relative to each other by a positioning component disposed between them.

[0013] As an optimized structure of the high-performance hydraulically suspended flow channel plate of the present invention, the positioning component includes at least two sets of positioning posts vertically connected to the top surface of the lower flow channel plate, and a positioning groove formed on the bottom surface of the upper flow channel plate that is adapted to the positioning posts.

[0014] As a preferred optimized structure of the high-performance hydraulic suspension flow channel plate of the present invention, the inner wall of the middle section of the inertial channel is provided with spaced-apart flow-blocking plates along its extension direction.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention eliminates the need for a decoupling cavity and increases the cross-sectional area at both ends of the inertial channel to reduce the flow resistance of the medium at the end of the inertial channel, thereby enabling rapid flow of the medium between the end of the inertial channel and the upper and lower liquid chambers. This satisfies the operating conditions of high excitation and small amplitude. Since the decoupling cavity is not required, the production cost and the volume of the flow channel plate are significantly reduced, and the process is also simplified. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the top three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the lower flow channel plate of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the upper flow channel plate of the present invention;

[0022] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1. Upper flow channel plate; 11. Liquid inlet; 2. Lower flow channel plate; 21. Liquid outlet; 3. Inertial channel; 31. First channel; 32. Second channel; 33. Third channel; 4. Baffle plate; 5. Positioning column; 6. Positioning groove; 7. Pressure valve. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] This invention relates to an optimized structure for a high-performance hydraulically mounted flow channel plate, such as... Figures 1-5 As shown, the system includes an upper flow channel plate 1 with an inlet 11 on its top surface, a lower flow channel plate 2 with an outlet 21 on its bottom surface, and an inertial channel 3 disposed between the upper flow channel plate 1 and the lower flow channel plate 2, with its two ends connected to the inlet 11 and the outlet 21, respectively. The inlet 11 and the outlet 21 are used to connect the upper and lower liquid chambers, respectively, so as to realize the flow of the medium in the inertial channel 3.

[0027] The inertial channel 3 has a three-section layout, including the first channel 31 located in the middle section, and the second channel 32 and the third channel 33 connected to the two ends of the first channel 31 respectively. The second channel 32 and the third channel 33 have similar structures, and their overall cross-sectional area gradually increases from the end of the first channel 31 to the other end, forming a trumpet-shaped structure. Under this structure, the resistance of the damping fluid (ethylene glycol-based solution) in the upper and lower liquid chambers entering and exiting the end of the inertial channel 3 in the initial stage will be significantly reduced, making the suspension softer, so as to consume the vibration energy generated by the powertrain under high excitation and small amplitude (such as engine idling or cruising vibration) conditions, thereby effectively isolating high frequency vibration and noise and improving driving comfort.

[0028] Meanwhile, under conditions of large amplitude and low frequency excitation (such as vibration during starting, braking, and going over speed bumps), the narrow channel structure of the first channel 31 can significantly increase the flow resistance of the medium, thereby using the inertia of the liquid column to resist its acceleration / deceleration, generating significant dynamic damping force and consuming impact energy.

[0029] Optionally, a series of spaced-out baffles 4 can be staggered along the extension direction on the inner wall of the middle section of the inertial channel 3. By blocking the flow of the medium through the baffles 4, the flow resistance of the medium can be further increased, thereby ensuring good stability of the power assembly under the conditions of large amplitude and low frequency excitation.

[0030] Example 2:

[0031] Based on the above embodiments, in order to allow the damping fluid (ethylene glycol-based solution) in the upper and lower liquid chambers to enter and exit the end of the inertial channel 3 more quickly, and to increase the frequency of suspension softening, so as to consume vibration energy more quickly and reduce vibration transmission under high excitation and small amplitude conditions.

[0032] Specifically, pressure valves 7 are installed at both ends of the inertial channel 3 and at the connection points of its middle section. That is, the second channel 32 and the third channel 33 are respectively connected to the first channel 31 through pressure valves 7. In this embodiment, the pressure valve 7 is a diaphragm pressure valve. The diaphragm pressure valve has an elastic and movable diaphragm valve inside. Under a certain pressure, the diaphragm valve can push the damping fluid to flow back and forth quickly between the upper and lower liquid chambers and the two ends of the inertial channel 3 by the deformation and reset of the diaphragm itself. Since the medium flow resistance at both ends of the inertial channel 3 is small, and the damping fluid does not pass through the narrower first channel 31 due to the obstruction of the diaphragm, the damping fluid flow is faster than in the first embodiment above. The frequency and response of the suspension softening are also faster, which meets the higher requirements under high excitation and small amplitude conditions.

[0033] Under conditions of large amplitude and low frequency excitation, due to the large pressure, the damping fluid will push the diaphragm valve to open. At this time, the damping fluid can pass through the narrow first channel 31 and generate a huge damping force to consume the impact energy and stabilize the powertrain.

[0034] In another preferred embodiment, a positioning component is provided between the upper flow channel plate 1 and the lower flow channel plate 2 for neatly assembling the two together to form an enclosure.

[0035] The positioning assembly includes at least two sets of positioning posts 5 vertically connected to the top surface of the lower flow channel plate 2, and positioning grooves 6 formed on the bottom surface of the upper flow channel plate 1 that are adapted to the positioning posts 5. In this embodiment, the positioning posts 5 are located at the four corners near the top surface of the lower flow channel plate 2. During assembly, the positioning posts 5 are inserted into the corresponding positioning grooves 6 on the bottom surface of the upper flow channel plate 1 to neatly assemble the two together. Finally, they are ultrasonically welded together to form a complete flow channel plate structure.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optimized structure for a high-performance hydraulically mounted flow channel plate, characterized in that, include: The upper flow channel plate (1) with an inlet (11) on the top surface, the lower flow channel plate (2) with an outlet (21) on the bottom surface, and an inertial channel (3) disposed between the upper flow channel plate (1) and the lower flow channel plate (2) and connected at both ends to the inlet (11) and the outlet (21) respectively, wherein the cross-sectional area at both ends of the inertial channel (3) is greater than the cross-sectional area of ​​its middle section.

2. The optimized structure of the high-performance hydraulic suspension flow channel plate according to claim 1, characterized in that: The inertial channel (3) includes a first channel (31) located in the middle section, and a second channel (32) and a third channel (33) respectively connected to the two ends of the first channel (31).

3. The optimized structure of the high-performance hydraulically mounted flow channel plate according to claim 2, characterized in that: The end of the second channel (32) is connected to the inlet (11), and the end of the third channel (33) is connected to the outlet (21).

4. The optimized structure of the high-performance hydraulically mounted flow channel plate according to claim 3, characterized in that: The cross-sectional area of ​​the second channel (32) gradually decreases from the liquid inlet (11) towards the end of the first channel (31).

5. The optimized structure of the high-performance hydraulically mounted flow channel plate according to claim 3, characterized in that: The cross-sectional area of ​​the third channel (33) gradually decreases from the outlet (21) towards the end of the first channel (31).

6. The optimized structure of the high-performance hydraulically mounted flow channel plate according to any one of claims 1-5, characterized in that: Pressure valves (7) are provided at both ends of the inertial channel (3) and at the channel connection of its middle section.

7. The optimized structure of the high-performance hydraulically mounted flow channel plate according to claim 6, characterized in that: The pressure valve (7) is a diaphragm pressure valve.

8. The optimized structure of the high-performance hydraulic suspension flow channel plate according to claim 1, characterized in that: The upper flow channel plate (1) and the lower flow channel plate (2) are assembled together relative to each other by a positioning component disposed between them.

9. The optimized structure of the high-performance hydraulically mounted flow channel plate according to claim 8, characterized in that: The positioning component includes at least two sets of positioning posts (5) vertically connected to the top surface of the lower flow channel plate (2), and a positioning groove (6) formed on the bottom surface of the upper flow channel plate (1) to match the positioning posts (5).

10. The optimized structure of the high-performance hydraulically mounted flow channel plate according to claim 1, characterized in that: The inner wall of the middle section of the inertial channel (3) is provided with spaced-out flow-blocking plates (4) along its extension direction.

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