Bidirectional damping adjustable piston and hydraulic damper

Abstract

The utility model discloses a bidirectional damping adjustable piston and a hydraulic damper, and relates to the technical field of hydraulic dampers. The first damping holes and the second damping holes are formed in the piston base body; the plurality of first inclined elastic sheet assemblies are correspondingly connected into the plurality of first damping holes; the second inclined elastic sheet assemblies are correspondingly connected into the second damping holes; the number of the first inclined elastic piece assemblies is equal to that of the second inclined elastic piece assemblies, and the inclined directions are opposite. The technical effect of the utility model is that the dynamic matching load performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic dampers, in particular to a bidirectional damping adjustable piston and a hydraulic damper. Background Art

[0002] Hydraulic damper is a device used to achieve smooth and slow mechanical movement through the resistance of fluid medium, and is widely used in the field of photovoltaic power generation.

[0003] The piston is an important component of the hydraulic damper. The relevant piston is designed based on a single damping coefficient, but the single damping coefficient cannot dynamically match the change of load, which easily leads to poor dynamic load matching performance of the relevant piston. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a bidirectional damping adjustable piston and a hydraulic damper, which have good dynamic matching load performance.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A two-way damping adjustable piston, comprising:

[0007] Piston base;

[0008] A plurality of first damping holes and a plurality of second damping holes are arranged in the piston base body;

[0009] A plurality of first inclined spring sheet assemblies correspondingly connected to the plurality of first damping holes;

[0010] A plurality of second inclined spring sheet assemblies correspondingly connected to the plurality of second damping holes;

[0011] The number of the plurality of first inclined spring sheet assemblies and the number of the plurality of second inclined spring sheet assemblies are equal, and their inclined directions are opposite.

[0012] Optionally, the first inclined spring clip assembly includes a plurality of first inclined spring clip bodies arranged at intervals, and the plurality of first inclined spring clip bodies are all connected to the first damping hole; the second inclined spring clip assembly includes a plurality of second inclined spring clip bodies arranged at intervals, and the plurality of second inclined spring clip bodies are all connected to the second damping hole; wherein the inclination directions of the plurality of first inclined spring clip bodies and the plurality of second inclined spring clip bodies are opposite.

[0013] Optionally, the spacing between adjacent first inclined spring sheet bodies of the first inclined spring sheet assembly is equal, or the spacing increases successively along the inclination direction of the first inclined spring sheet body; the spacing between adjacent second inclined spring sheet bodies of the second inclined spring sheet assembly is equal, or the spacing increases successively along the inclination direction of the second inclined spring sheet body.

[0014] Optionally, the plurality of first damping holes and the plurality of second damping holes are staggered along the circumferential direction of the piston base.

[0015] Optionally, the plurality of first damping holes and the plurality of second damping holes are evenly distributed along the circumference of the piston base.

[0016] Optionally, also include:

[0017] A first mounting groove provided outside the piston base;

[0018] A sealing ring is at least partially located in the first mounting groove.

[0019] Optionally, also include:

[0020] A second mounting groove provided outside the piston base;

[0021] An anti-wear ring is at least partially located in the second mounting groove.

[0022] A hydraulic damper comprises a bidirectional damping adjustable piston.

[0023] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: even if the load changes, the total damping coefficient of the first damping holes and the second damping holes remains unchanged, which facilitates the dynamic matching load performance of the first inclined spring sheet assemblies and the second inclined spring sheet assemblies to be good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of a bidirectional damping adjustable piston proposed in an embodiment of the utility model;

[0025] Figure 2 The second structural schematic diagram of a bidirectional damping adjustable piston proposed in an embodiment of the utility model;

[0026] In the figure: 1, first inclined spring piece assembly; 11, first inclined spring piece body; 2, second inclined spring piece assembly; 21, second inclined spring piece body; 3, piston base; 31, first damping hole; 32, second damping hole; 33, first mounting groove; 34, second mounting groove; 35, threaded hole. DETAILED DESCRIPTION

[0027] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0029] Example 1

[0030] Combined with Figure 1-2 , this embodiment provides a bidirectional damping adjustable piston, comprising:

[0031] Piston base 3;

[0032] A plurality of first damping holes 31 and a plurality of second damping holes 32 are provided in the piston base 3;

[0033] A plurality of first inclined spring sheet assemblies 1 correspondingly connected to the plurality of first damping holes 31;

[0034] A plurality of second inclined spring sheet assemblies 2 correspondingly connected to the plurality of second damping holes 32;

[0035] The number of the first inclined spring sheet assemblies 1 and the number of the second inclined spring sheet assemblies 2 are equal, and the inclined directions are opposite.

[0036] Specifically, the piston base 3 is used to carry a plurality of first damping holes 31, a plurality of second damping holes 32, etc.; the plurality of first damping holes 31 are used to correspondingly accommodate a plurality of first inclined spring sheet assemblies 1, and a threaded hole 35 for accommodating a piston rod is provided on the piston base 3 to facilitate threaded connection between the piston base 3 and the piston rod; the plurality of second damping holes 32 are used to correspondingly accommodate a plurality of second inclined spring sheet assemblies 2.

[0037] The plurality of first inclined spring leaf assemblies 1 and the plurality of second inclined spring leaf assemblies 2 are used for dynamic complementation, specifically as follows: since the number of the two is equal and the inclination directions are opposite, it is assumed that the plurality of first inclined spring leaf assemblies 1 are inclined toward the first axial direction and the plurality of second inclined spring leaf assemblies 2 are inclined toward the second axial direction; when the fluid flows toward the first axial direction, the degree to which the plurality of first inclined spring leaf assemblies 1 are inclined toward the first axial direction increases, thereby increasing the flow area of ​​the plurality of first damping holes 31, and at the same time, the degree to which the plurality of second inclined spring leaf assemblies 2 are inclined toward the second axial direction slows down, thereby reducing the flow area of ​​the plurality of second damping holes 32, thereby ensuring that the plurality of first damping holes 31 and the plurality of second damping holes 32 The total damping coefficient remains unchanged; when the fluid flows toward the second axial direction, the degree of inclination of the plurality of first inclined spring leaf assemblies 1 toward the first axial direction is reduced, thereby reducing the flow area of ​​the plurality of first damping holes 31, and at the same time, the degree of inclination of the plurality of second inclined spring leaf assemblies 2 toward the second axial direction is increased, thereby increasing the flow area of ​​the plurality of second damping holes 32, thereby ensuring that the total damping coefficient of the plurality of first damping holes 31 and the plurality of second damping holes 32 remains unchanged; in summary, even if the load changes, the total damping coefficient of the plurality of first damping holes 31 and the plurality of second damping holes 32 remains unchanged, thereby facilitating good dynamic matching load performance of the plurality of first inclined spring leaf assemblies 1 and the plurality of second inclined spring leaf assemblies 2.

[0038] Further, such as Figure 2 The first inclined spring piece assembly 1 includes a plurality of first inclined spring piece bodies 11 arranged at intervals, and the plurality of first inclined spring piece bodies 11 are all connected to the first damping hole 31; the second inclined spring piece assembly 2 includes a plurality of second inclined spring piece bodies 21 arranged at intervals, and the plurality of second inclined spring piece bodies 21 are all connected to the second damping hole 32; wherein the inclination directions of the plurality of first inclined spring piece bodies 11 and the plurality of second inclined spring piece bodies 21 are opposite.

[0039] Specifically, the cross-sectional shapes of the plurality of first inclined spring sheet bodies 11 , the first damping hole 31 , the plurality of second inclined spring sheet bodies 21 and the second damping hole 32 are all equal and may be rectangular, circular, etc., preferably rectangular.

[0040] Further, such as Figure 2 The spacing between adjacent first inclined spring sheet bodies 11 of the first inclined spring sheet assembly 1 is equal, or the spacing increases successively along the inclination direction of the first inclined spring sheet body 11; the spacing between adjacent second inclined spring sheet bodies 21 of the second inclined spring sheet assembly 2 is equal, or the spacing increases successively along the inclination direction of the second inclined spring sheet body 21.

[0041] Specifically, equal spacing facilitates increasing the force uniformity of the multiple first inclined spring sheet bodies 11 and the multiple second inclined spring sheet bodies 21 ; sequentially increasing spacing facilitates increasing the accommodation space for subsequent first inclined spring sheet bodies 11 and second inclined spring sheet bodies 21 .

[0042] Further, such as Figure 1 A plurality of first damping holes 31 and a plurality of second damping holes 32 are staggeredly arranged along the circumferential direction of the piston base 3 .

[0043] Specifically, the circumferentially staggered arrangement facilitates increasing the overall force uniformity of the piston base 3 .

[0044] Further, such as Figure 1 The plurality of first damping holes 31 and the plurality of second damping holes 32 are evenly distributed along the circumference of the piston base 3 .

[0045] Specifically, the circumferential uniform distribution facilitates further increasing the overall force uniformity of the piston base 3 .

[0046] Further, such as Figure 1-2 , also includes:

[0047] A first mounting groove 33 provided outside the piston base 3;

[0048] A sealing ring is at least partially located in the first mounting groove 33 .

[0049] Specifically, the first mounting groove 33 is used to accommodate a sealing ring; the sealing ring is used to increase the sealing between the piston base 3 and the inner wall of the hydraulic damper, and the sealing ring may be made of silicone rubber, fluororubber or the like.

[0050] Further, such as Figure 1-2 , also includes:

[0051] A second mounting groove 34 provided outside the piston base 3;

[0052] An anti-wear ring is at least partially located in the second mounting groove 34 .

[0053] Specifically, the second mounting groove 34 is used to accommodate an anti-wear ring; the anti-wear ring is used to prevent friction between the piston base 3 and the inner wall of the hydraulic damper, thereby preventing the piston base 3 from being worn.

[0054] This embodiment also provides a hydraulic damper, including a bidirectional damping adjustable piston in this embodiment.

[0055] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A two-way damping adjustable piston, characterized in that: include: Piston base; A plurality of first damping holes and a plurality of second damping holes are arranged in the piston base body; A plurality of first inclined spring sheet assemblies correspondingly connected to the plurality of first damping holes; A plurality of second inclined spring sheet assemblies correspondingly connected to the plurality of second damping holes; The number of the plurality of first inclined spring sheet assemblies and the number of the plurality of second inclined spring sheet assemblies are equal, and their inclined directions are opposite.

2. A two-way damping adjustable piston according to claim 1, characterized in that: The first inclined spring piece assembly includes a plurality of first inclined spring piece bodies arranged at intervals, and the plurality of first inclined spring piece bodies are all connected to the first damping hole; the second inclined spring piece assembly includes a plurality of second inclined spring piece bodies arranged at intervals, and the plurality of second inclined spring piece bodies are all connected to the second damping hole; wherein the inclination directions of the plurality of first inclined spring piece bodies and the plurality of second inclined spring piece bodies are opposite.

3. A two-way damping adjustable piston according to claim 2, characterized in that: The spacing between adjacent first inclined spring sheet bodies of the first inclined spring sheet assembly is equal, or the spacing increases successively along the inclination direction of the first inclined spring sheet body; the spacing between adjacent second inclined spring sheet bodies of the second inclined spring sheet assembly is equal, or the spacing increases successively along the inclination direction of the second inclined spring sheet body.

4. A bidirectional damping adjustable piston according to any one of claims 1 to 3, characterized in that: The plurality of first damping holes and the plurality of second damping holes are arranged alternately along the circumferential direction of the piston base.

5. A two-way damping adjustable piston according to claim 4, characterized in that: The plurality of first damping holes and the plurality of second damping holes are evenly distributed along the circumference of the piston base.

6. A bidirectional damping adjustable piston according to any one of claims 1 to 3, characterized in that: Also includes: A first mounting groove provided outside the piston base; A sealing ring is at least partially located in the first mounting groove.

7. A bidirectional damping adjustable piston according to any one of claims 1 to 3, characterized in that: Also includes: A second mounting groove provided outside the piston base; An anti-wear ring is at least partially located in the second mounting groove.

8. A hydraulic damper, characterized in that: It comprises a bidirectional damping adjustable piston as described in any one of claims 1-7.

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