Damping regulating valve with limit device

Abstract

The present invention discloses a damping regulating valve with a limit device, which relates to the technical field of automobile shock absorbers, and includes a packaged electromagnetic valve assembly, including an electromagnetic coil, an electromagnet and a valve core disk, wherein the electromagnetic coil and the electromagnet are used to generate an electromagnetic effect and are arranged on the valve core disk; a packaging assembly, including an electromagnetic valve outer cylinder and an electromagnetic valve packaging end cover for accommodating the packaged electromagnetic valve assembly; a regulating valve base, wherein the valve core disk is rotatably arranged on the regulating valve base and is connected to the regulating valve base; a valve bottom assembly, including a valve bottom body, wherein the regulating valve base is arranged on the valve bottom body and is connected to each other, and the communicating area between the valve core disk and the regulating valve base is adjustable when the valve core disk rotates. The present invention realizes continuous adjustment of damping by adjusting the flow area of ​​the valve core disk and the regulating valve base, thereby realizing continuous adjustment of the damping force, greatly expanding the damping adjustment range of the shock absorber or regulating valve, and has the advantages of active control, stepless damping adjustment, smooth damping adjustment process and simple structure.

Description

Technical Field

[0001] The invention relates to an automobile shock absorber, in particular to a damping regulating valve with a limiting device. Background Art

[0002] With the improvement of people's living standards and the rapid development of the automobile industry, people's requirements for the smoothness and safety of automobile driving have been greatly enhanced. The shock absorber is the core component of the suspension that can effectively alleviate the impact of the road on the car body. Therefore, the performance of the shock absorber must be able to meet the needs of both smoothness and safety of driving.

[0003] The vibration caused by the unevenness of the road surface and the movement of the vehicle during driving not only affects the driver's comfort, but also has a serious impact on the service life and safety of the vehicle. Therefore, it is necessary to control and attenuate this vibration to the greatest extent.

[0004] Chinese patent publication number CN113124087A discloses a two-stage damping continuous regulating valve to adjust the damping. By adjusting the flow area of ​​the first damping section and the second damping section, the damping force can be continuously adjusted, which expands the damping adjustment range of the shock absorber or damping valve. Although this design can theoretically achieve continuous damping adjustment, due to the special working environment of the shock absorber, when passing through a harsh environment such as a mountainous area or a convex hump or a concave pit, the vibration caused by the impact has a relatively large impact on the regulating valve. There are too many spring parts inside it, which easily causes spring failure. In addition, the damping adjustment block is moved by the push of the valve core rod, and the transmission parts have energy loss, so the transmission efficiency is greatly reduced, thereby greatly reducing the efficiency of the damping adjustment. In addition, in terms of the installation and maintenance of the damper, the built-in valve brings a lot of inconvenience to the installation and disassembly maintenance. Therefore, in order to solve the above problems, a shock absorber damping continuous regulating valve is needed to reduce the transmission parts, which can well solve the problem of adjusting the damping efficiency, and can also be convenient for installation and disassembly, save costs, and achieve continuous damping adjustment. Summary of the invention

[0005] In view of the defects of the existing structure, the purpose of the present invention is to improve the efficiency of the damping regulating valve in regulating damping. Through the rotation of the valve core disk, the two small damping holes on the valve core disk are always kept unobstructed with the arc-shaped damping holes on the regulating valve base. The large damping hole on the valve core disk and the large damping hole on the regulating valve base are in a tangent state when the coil is not energized. After the coil is energized, the large damping can be adjusted, so that the damping adjustment is more stable and can adapt to different environments, thereby achieving the effect of reducing the vibration of the vehicle body and improving the ride comfort of the vehicle. In addition, in terms of the stroke of the damping regulating valve, the present invention is equipped with a limit device to limit the stroke within the titration range, reduce unnecessary idle stroke, and improve the efficiency of damping adjustment.

[0006] The damping regulating valve with a limit device provided by the present invention adopts the following technical solutions:

[0007] A damping regulating valve with a limit device comprises a packaged electromagnetic valve assembly, the packaged electromagnetic valve assembly comprises an electromagnetic coil, an electromagnet and a valve core disk, the electromagnetic coil and the electromagnet are used to generate an electromagnetic effect and are arranged on the valve core disk; a packaging assembly, the packaging assembly comprises an electromagnetic valve outer cylinder for accommodating the packaged electromagnetic valve assembly and a solenoid valve packaging end cover; a regulating valve base, the valve core disk is rotatably arranged on the regulating valve base and is connected with the regulating valve base; a valve bottom assembly comprises a valve bottom body, the regulating valve base is arranged on the valve bottom body and is connected with each other, and the connection area between the valve core disk and the regulating valve base is adjustable when the valve core disk rotates.

[0008] Furthermore, the packaged solenoid valve assembly also includes a packaged valve body, the solenoid coil and the electromagnet are arranged in the packaged valve body, the electromagnet is coaxially installed on the valve core disk, and the packaged valve body is connected to the packaged end cover of the solenoid valve.

[0009] Furthermore, the regulating valve base is evenly provided with a plurality of small damping holes and large damping holes, the regulating valve base is provided with the same number of large damping holes, the small damping holes on the valve core disk and the regulating valve base are always kept connected, the large damping holes on the valve core disk and the large damping holes on the regulating valve base are in a tangent state, and when the valve core disk rotates, the large damping holes on the valve core disk and the large damping holes on the regulating valve base can be connected, so as to continuously adjust the damping.

[0010] Furthermore, the regulating valve base is provided with arc-shaped damping holes having the same number as the small damping holes, and the small damping holes are communicated with the arc-shaped damping holes when the valve core disk is not rotating.

[0011] Furthermore, the valve core disc is provided with a torsion restoring spring for resetting the valve core disc.

[0012] Furthermore, a stroke limit is provided between the valve core disc and the regulating valve base.

[0013] Furthermore, an arc-shaped limiting groove is provided on the regulating valve base, and a limiting rod is provided on the bottom side of the valve core disc, and the limiting rod is inserted into the limiting groove.

[0014] Furthermore, the valve bottom assembly also includes a flow ring, which is installed on the valve bottom body and is used for the circulation of oil.

[0015] In summary, the present invention comprises at least one of the following beneficial effects:

[0016] 1. The overall structure of the regulating valve is relatively simple, and it is convenient to install and disassemble, and it is also easy to process and produce, and it can achieve the effect of continuously adjustable damping;

[0017] 2. When the solenoid valve is not energized, the small damping hole is in a normally open state, and part of the damping can be adjusted to improve the smoothness of the vehicle and adapt to general road conditions;

[0018] 3. The damping holes on the valve core disk in the present invention are evenly distributed, the arc-shaped damping hole on the regulating valve base is connected to the small damping hole, and the large damping hole is perfectly connected to the large damping hole on the valve core disk. As long as there is current, the damping can be continuously adjustable. Since the stroke limit is set between the valve core disk and the regulating valve base, the rotation stroke is controlled within a certain range. In this way, an electronic control unit can be installed on the vehicle to accurately control the rotation angle and current of the valve core disk, so that the damping can be more accurately adjusted to adapt to various road conditions;

[0019] 4. The valve core and valve disc of the valve core disc are integrated design, which reduces the transmission of the intermediate components and will not cause the problem of transmission failure. It can improve the adjustment efficiency and achieve the effect of continuous adjustable damping more accurately;

[0020] 5. External solenoid valves are more convenient to install, disassemble and maintain than built-in solenoid valves. Built-in solenoid valves are usually installed on the piston of the piston rod. The piston is often in a moving state, and the requirements for the connecting parts are high. Here, the external solenoid valve can well improve this shortcoming. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is an exploded schematic diagram of the valve assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the valve core disk of the present invention;

[0024] Figure 4 It is a schematic diagram of the regulating valve base of the present invention;

[0025] Description of reference numerals:

[0026] 1. Encapsulated solenoid valve assembly; 11. Electromagnetic coil; 12. Electromagnet; 13. Valve core disk; 131. Limit rod; 14. Encapsulated valve body; 15. Torsion return spring; 16. Magnetic ring; 2. Encapsulated assembly; 21. Solenoid valve outer tube; 22. Solenoid valve encapsulated end cover; 3. Control valve base; 31. Arc-shaped damping hole; 32. Limit groove; 4. Valve bottom assembly; 41. Valve bottom body; 411. Throttle hole; 42. Flow ring; 43. Lamination; 5. Small damping hole; 6. Large damping hole. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] The following is combined with Figure 1-4 The embodiments of the present invention are described in further detail.

[0029] The embodiment of the present invention discloses a damping regulating valve with a limit device. Figure 1 The damping regulating valve with a limit device comprises a packaged electromagnetic valve assembly 1, a package assembly 2, a regulating valve base 3 and a valve bottom assembly 4. The packaged electromagnetic valve assembly 1 comprises an electromagnetic coil 11, an electromagnet 12, a valve core disk 13 and a packaged valve body 14. The valve core disk 13 is formed by integrating the valve core and the valve disk. The packaged valve body 14 is coaxially arranged on the valve core disk 13. A magnetic conductive ring 16 is coaxially arranged on the valve core of the valve core disk 13. The electromagnetic coil 11 is wound on the magnetic conductive ring 16. The electromagnetic coil 11 and the magnetic conductive ring 16 are both coaxially installed with the valve core of the valve core disk 13. A torsion restoring spring 15 is also coaxially arranged on the valve core of the valve core disk 13. The torsion restoring spring 15 is located in the packaged valve body 14. By energizing the electromagnetic coil 11, an electromagnetic effect is generated inside the packaged electromagnetic valve, causing the electromagnet 12 to rotate, thereby driving the valve core disk 13 to rotate, generating an electromagnetic effect.

[0030] The packaging assembly 2 includes a solenoid valve outer cylinder 21 and a solenoid valve packaging end cap 22. The packaging solenoid valve assembly 1 is arranged in the solenoid valve outer cylinder 21, and the solenoid valve packaging end cap 22 is arranged at the top of the solenoid valve outer cylinder 21 to close the solenoid valve outer cylinder 21. The solenoid valve packaging end cap 22 is threadedly fixed to the top of the solenoid valve outer cylinder 21 and abuts against the end surface of the solenoid valve outer cylinder 21. The solenoid valve outer cylinder 21 is connected to the shock absorber outer cylinder by welding, so that the entire shock absorber is integrated.

[0031] Reference Figure 2 , Figure 3 and Figure 4The regulating valve base 3 is located in the outer tube 21 of the solenoid valve. The valve disc of the valve core disc 13 is coaxially rotatably arranged on the regulating valve base 3. The valve core disc 13 is evenly provided with a plurality of small damping holes 5 and large damping holes 6. In this embodiment, there are two small damping holes 5 and six large damping holes 6. The two small damping holes 5 are symmetrically arranged on the valve core disc 13. The four large damping holes 6 are symmetrically arranged in pairs, and the two small damping holes 5 evenly divide the two groups of large damping holes 6. The regulating valve base 3 is also provided with large damping holes 6 of the same number and position. At the same time, the regulating valve base 3 is also provided with two mutually symmetrical arc-shaped damping holes 31, and the positions of the two arc-shaped damping holes 31 correspond to the two small damping holes 5 one by one.

[0032] When the solenoid valve is not powered, the valve core disk 13 does not rotate, the two small damping holes 5 and the two arc-shaped damping holes 31 remain unobstructed, and a part of the damping can be adjusted, while the large damping holes 6 on the valve core disk 13 remain tangent to the large damping holes 6 on the regulating valve base 3, respectively, and are in a critical state. When the solenoid valve is powered, the valve core disk 13 rotates, and the two small damping holes 5 on the valve core disk 13 also always remain unobstructed with the arc-shaped damping holes 31 on the regulating valve base 3. At this time, the four large damping holes 6 on the valve core disk 13 gradually overlap with the four large damping holes 6 on the regulating valve base 3. When they are completely overlapped, the damping is minimal.

[0033] Reference Figure 3 and Figure 4 In order to make the damping adjustment stroke within a certain range and reduce unnecessary idle stroke, two arc-shaped limit grooves 32 are provided on the regulating valve base 3, and the two limit grooves 32 are symmetrically arranged. Two limit rods 131 are provided on the bottom side of the valve core disk 13, and the two limit rods 131 are respectively inserted into the two limit grooves 32, so that the rotation stroke between the valve core disk 13 and the regulating valve base 3 is only 30°.

[0034] Reference Figure 1 and Figure 2 The valve bottom assembly 4 includes a valve bottom body 41 and a flow ring 42. The valve bottom body 41 is fixed to the lower end of the regulating valve base 3 by threads to keep the entire valve body connected. The flow ring 42 is arranged around the side wall of the regulating valve bottom body 11, and the outer wall is in contact with the inner wall of the solenoid valve outer tube 21. The flow ring 42 is provided with many small holes for the outflow of oil. The upper and lower sides of the valve bottom body 41 are provided with stacking sheets 43, which are fixed to the valve bottom body 41 by bolts. The stacking sheets 43 are provided with many small holes. The valve bottom body 41 is provided with two symmetrical throttling holes 411, which are connected to the small holes on the stacking sheets 43. The shock absorber oil can flow into the solenoid valve from these small holes.

[0035] The implementation principle of the damping regulating valve with a limit device is as follows: when the solenoid valve is not powered on, the valve core disk 13 does not rotate, and the two small damping holes 5 and the two arc-shaped damping holes 31 remain unobstructed, so that a part of the damping can be adjusted, and the small damping holes 5 on the valve core disk 13 are respectively tangent to the large damping holes 6 on the regulating valve base 3, and are in a critical state. When the solenoid valve is powered on, the valve core disk 13 rotates, and the two small damping holes 5 on the valve core disk 13 also always remain unobstructed with the arc-shaped damping holes 31 on the regulating valve base 3. At this time, the four large damping holes 6 on the valve core disk 13 gradually overlap with the four large damping holes 6 on the regulating valve base 3. When they are completely overlapped, the damping is minimal.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A damping regulating valve with a limit device, characterized in that: include: A packaged electromagnetic valve assembly (1), the packaged electromagnetic valve assembly (1) comprising an electromagnetic coil (11), an electromagnet (12) and a valve core disk (13), the electromagnetic coil (11) and the electromagnet (12) being used to generate an electromagnetic effect and being arranged on the valve core disk (13); A packaging component (2), the packaging component (2) comprising a solenoid valve outer cylinder (21) for packaging the solenoid valve component (1) and a solenoid valve packaging end cover (22), the solenoid valve packaging end cover (22) being used to seal the solenoid valve outer cylinder (21); A regulating valve base (3), wherein the valve core disk (13) is rotatably disposed on the regulating valve base (3) and is in communication with the regulating valve base (3); The valve bottom assembly (4) comprises a valve bottom body (41), the regulating valve base (3) is arranged on the valve bottom body (41) and is in communication with each other, and the communication area between the valve core disk (13) and the regulating valve base (3) is adjustable when the valve core disk (13) rotates; The packaged solenoid valve assembly (1) further comprises a packaged valve body (14), the solenoid coil (11) and the electromagnet (12) are arranged in the packaged valve body (14), the electromagnet (12) is coaxially mounted on the valve core disk (13), and the packaged valve body (14) is connected to the solenoid valve package end cover (22); The regulating valve base (3) is evenly provided with a plurality of small damping holes (5) and large damping holes (6); the regulating valve base (3) is provided with the same number of large damping holes (6); the small damping holes (5) on the valve core disk (13) and the regulating valve base (3) are always kept in communication; the large damping holes (6) on the valve core disk (13) and the large damping holes (6) on the regulating valve base (3) are in a tangent state; when the valve core disk (13) rotates, the large damping holes (6) on the valve core disk (13) and the large damping holes (6) on the regulating valve base (3) can be in communication, so as to achieve continuous damping adjustment; The regulating valve base (3) is provided with arc-shaped damping holes (31) having the same number as the small damping holes (5); when the valve core disk (13) is not rotating, the small damping holes (5) are in communication with the arc-shaped damping holes (31); The valve bottom assembly (4) further comprises a flow ring (42), which is mounted on the valve bottom body (41) and is used for the circulation of oil. The valve bottom body (41) is fixed to the lower end of the regulating valve base (3) by means of threads.

2. The damping regulating valve with a limit device according to claim 1, characterized in that: The valve core disc (13) is provided with a torsion restoring spring (15) for resetting the valve core disc (13).

3. The damping regulating valve with a limit device according to claim 2, characterized in that: A travel limit is provided between the valve core disc (13) and the regulating valve base (3).

4. The damping regulating valve with a limit device according to claim 3, characterized in that: An arc-shaped limiting groove (32) is provided on the regulating valve base (3), and a limiting rod (131) is provided on the bottom side of the valve core disc (13), and the limiting rod (131) is inserted into the limiting groove (32).

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