Hydraulic spring pad and installation method

Abstract

The present invention relates to the field of spring vibration reduction technology, and specifically refers to a hydraulic spring washer and an installation method. The hydraulic spring washer includes a spring washer body, wherein a sealing chamber and a damping liquid are provided in the sealing chamber; the sealing chamber includes a first hydraulic chamber arranged along the lift of the spring end coil, a circuitous flow channel connected to the first hydraulic chamber at one end, and a second hydraulic chamber connected to the other end of the circuitous flow channel. The installation method is used to install a hydraulic spring washer, wherein the first hydraulic chamber is arranged along the lift of the spring end coil, and when pressurized, the damping liquid flows into the second hydraulic chamber through the circuitous flow channel, which can relieve the pressure of the spring on the spring washer. At the same time, the spring washer body also deforms to absorb a part of the pressure of the spring, thereby jointly improving the effect of vertical damping of the spring and improving the effect of absorbing the spring amplitude.

Description

Technical Field

[0001] The present invention relates to the technical field of spring vibration reduction, in particular to a hydraulic spring pad and an installation method thereof. Background Art

[0002] At present, automobile chassis spring pads are mostly made of pure rubber or polyurethane and are installed at the upper and lower ends of the spring to flexibly connect the spring to the body (as well as the spring to the swing arm). The elasticity of rubber (or polyurethane) can absorb the deformation caused by the deformation of the spring to a certain extent. At the same time, it has a certain stiffness characteristic that can play a certain vibration reduction role; however, due to the inherent characteristics of the material itself, the traditional spring pad (pure rubber or polyurethane) itself provides a low vertical damping for the spring, that is, the spring amplitude absorbed. Summary of the Invention

[0003] The main purpose of the present invention is to solve the problem in the background art that the spring pad can not absorb the spring amplitude, and to provide a hydraulic spring pad and an installation method.

[0004] The technical solution adopted by the present invention is: a hydraulic spring washer, including a spring washer body, a sealed chamber and a damping fluid arranged in the sealed chamber; the sealed chamber includes a first hydraulic chamber arranged along the lift of the spring end coil, a circuitous flow channel connected to the first hydraulic chamber at one end, and a second hydraulic chamber connected to the other end of the circuitous flow channel.

[0005] Furthermore, a flow channel plate assembly is fixedly connected to the spring washer body, and the flow channel plate assembly and the spring washer body are engaged to form the first hydraulic cavity and the second hydraulic cavity; the flow channel plate assembly is provided with the circuitous flow channel.

[0006] Furthermore, the flow plate assembly includes an upper flow plate and a lower flow plate fixed to one side of the upper flow plate; the circuitous flow channel is sealed between the upper flow plate and the lower flow plate; a partition plate is fixed on the lower flow plate, and the partition plate and the spring pad body form a first hydraulic chamber and a second hydraulic chamber located on both sides of the partition plate.

[0007] Furthermore, an outer support plate is provided on the flow channel plate assembly, which is close to the outer edge of the spring pad body and abuts against the outer edge of the spring pad body to seal the outside of the first hydraulic cavity; a gap is provided between the outer support plate and the bottom wall of the first hydraulic cavity.

[0008] Furthermore, an inner support plate is provided on the flow channel plate assembly, and the inner support plate is close to the inner edge of the spring pad body and abuts inwardly against the inner edge of the spring pad body to seal the inner side of the second hydraulic cavity.

[0009] Furthermore, the spring washer body is annular in structure, and an inner fixed ring and an outer fixed ring are respectively provided on the inner and outer sides of the spring washer body; the inner and outer fixed rings form a supporting relationship with the flow channel plate assembly in the inner and outer directions.

[0010] Furthermore, a placement groove for installing the spring is provided on the spring pad body; a ring-shaped inner skeleton is provided in the spring pad body; and the inner skeleton is located inside or outside the ring-shaped space formed by the placement groove.

[0011] Furthermore, the flow channel plate assembly and the inner skeleton form a supporting relationship in the axial direction of the spring washer body.

[0012] Furthermore, a mounting groove is provided on the end portion of the partition plate of the flow channel plate assembly, and the inner frame can be embedded and fixed in the mounting groove.

[0013] Furthermore, the first hydraulic chamber is annular; the circuitous flow channel bends or folds from one end connected to the first hydraulic chamber and then connects to the second hydraulic chamber.

[0014] Furthermore, the second hydraulic chamber is annular.

[0015] Furthermore, the second hydraulic chamber is located in the annular space formed by the first hydraulic chamber; the circuitous flow channel spirally bends inward from one end connected to the first hydraulic chamber and then connects to the second hydraulic chamber.

[0016] Another aspect of the present invention provides a method for installing a hydraulic spring pad, which is used to install any of the hydraulic spring pads provided by the present invention. The installation method includes:

[0017] Place the flow channel plate assembly and the spring washer body in the damping fluid, and press fit them together after the damping fluid fills the sealed cavity; or place the flow channel plate assembly and the spring washer body together after press fitting to form a sealed cavity, then open the edge of the spring washer body and the flow channel plate assembly where they abut against each other to allow the damping fluid to flow into the sealed cavity;

[0018] The inner edge portion and the outer edge portion where the spring pad body abuts against the flow channel plate assembly are sealed and fixed.

[0019] A method for installing a hydraulic spring pad according to the present invention further includes:

[0020] The inner frame is fixedly connected to the spring pad body, and the upper flow channel plate and the lower flow channel plate are sealed and fixedly connected to form a flow channel plate assembly with a circuitous flow channel;

[0021] The method for sealing and fixing the inner edge and outer edge of the spring washer body and the flow channel plate assembly includes respectively connecting the inner and outer fixing rings by interference fit on the inner and outer sides of the spring washer body to form a supporting relationship with the flow channel plate assembly to achieve sealing and fixing.

[0022] According to a method for installing a hydraulic spring washer provided by the present invention, the method for fixing the inner frame to the spring washer body includes fixing the inner frame to the spring washer body by vulcanization;

[0023] The said interlocking press-fitting includes placing the mounting groove of the partition plate of the flow channel plate assembly corresponding to the inner frame, and then pressing the spring washer body and the flow channel plate assembly tightly so that the inner frame is sealed and fixed in the mounting groove, and the flow channel plate assembly and the spring washer body form a sealed cavity.

[0024] The beneficial effects of the present invention include: 1. The first hydraulic chamber of the spring washer body is arranged along the lift of the spring end coil. When the spring applies pressure, the damping fluid in the first hydraulic chamber is pressurized and pressed into the second hydraulic chamber through the circuitous flow channel. The arrangement of the circuitous flow channel increases the damping of the damping fluid flow, which can relieve the pressure of the spring on the spring washer. At the same time, the spring washer body also deforms to absorb part of the spring pressure, thereby improving the vertical damping effect of the spring and improving the effect of absorbing the spring amplitude.

[0025] 2. The first hydraulic chamber of the present invention is annular, which can more evenly transmit the pressure at the end of the spring. The circuitous flow channel connects the first hydraulic chamber and the second hydraulic chamber after bending or folding, extending the distance for the damping fluid to flow from the first hydraulic chamber to the second hydraulic chamber. Due to the viscosity characteristics of the damping fluid and the increased flow distance, the curved or folded circuitous flow channel increases the damping of the flow from the first hydraulic chamber to the second hydraulic chamber, thereby enhancing the damping effect of the spring washer.

[0026] 3. The second hydraulic chamber is located within the annular space of the first hydraulic chamber, which helps to reduce the size of the spring washer device. The circuitous flow channel spirally bends from the outside to the inside, which can greatly extend the distance from the first hydraulic chamber to the second hydraulic chamber, further enhancing the damping effect of the spring washer.

[0027] 4. The spring washer sealing chamber of the present invention has a simple manufacturing process. The spring washer body and the flow channel plate assembly are engaged and fixed to form a sealed chamber. The first hydraulic chamber and the second hydraulic chamber are connected through the circuitous flow channel on the flow channel plate, which is convenient for production and installation. The flow channel plate assembly can effectively support the spring washer body vertically.

[0028] 5. The flow channel plate assembly of the present invention has a simple structure. The circuitous flow channel is formed by sealing and fixing the upper flow channel plate and the lower flow channel plate. The partition plate on the lower flow channel plate and the spring pad body form a first hydraulic chamber and a second hydraulic chamber, which are separated, and are easy to produce and install.

[0029] 6. The outer support plate of the present invention abuts against the outer edge of the spring washer body to seal the first hydraulic chamber. A gap is provided between the outer support plate and the bottom wall of the first hydraulic chamber to facilitate the subsequent opening of the outer edge of the spring washer body to allow the damping fluid to flow through the gap to fill the sealed chamber.

[0030] 7. The spring washer body of the present invention has an annular structure, which can be conveniently provided with an inner and outer fixing ring on both sides of the spring washer body. The inner and outer fixing rings form a supporting relationship with the flow channel plate assembly in the inner and outer directions, thereby reinforcing and sealing the first and second hydraulic chambers. At the same time, the spring washer body is protected by shaping to avoid adverse effects such as tearing caused by excessive pressure, thereby extending the service life.

[0031] 8. The spring washer body can be installed and coupled to the end of the spring through the installation groove. The setting of the inner frame can protect the spring washer body when the spring exerts pressure on the spring washer body to avoid excessive deformation exceeding its maximum deformable amount and causing damage;

[0032] 9. When the internal fixing and the flow channel plate assembly of the present invention form a supporting relationship in the axial direction of the spring washer body, the deformation of the spring washer body can be reduced when the spring is pressurized, and the pressure is mainly absorbed by the flow of the damping fluid in the sealing cavity, thereby further protecting the spring washer body;

[0033] 10. The installation method of the hydraulic spring pad provided by the present invention fully utilizes the structural characteristics of the hydraulic spring pad of the present invention. The sealing cavity has no damping liquid injection opening, and the partial installation is carried out in a liquid state containing damping liquid, so that the damping liquid can flow into the sealing cavity, and finally the sealing is performed. The installation method is simple and at the same time ensures the sealing integrity of the installed hydraulic spring pad sealing cavity.

[0034] The hydraulic spring pad of the present invention is such that when the spring applies pressure, the damping fluid in the first hydraulic chamber is pressurized and pressed into the second hydraulic chamber through the circuitous flow channel. The provision of the circuitous flow channel increases the damping of the damping fluid flow, which can relieve the pressure exerted by the absorption spring on the spring pad. Combined with the deformation characteristics of the spring pad body itself to absorb the spring pressure, the damping effect is jointly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 : Schematic diagram of the structure of the hydraulic spring pad;

[0036] Figure 2 : Schematic diagram of the structure of the spring pad body;

[0037] Figure 3 : Schematic diagram of the flow channel plate assembly structure;

[0038] Figure 4 : Schematic diagram of the exploded structure of the runner plate assembly from above;

[0039] Figure 5 : Schematic diagram of the exploded structure of the runner plate assembly;

[0040] Figure 6 : Schematic diagram of the three-dimensional structure of the damping fluid in the spiral bending of the circuitous flow channel;

[0041] Figure 7 : Schematic diagram of the damping fluid flow when the hydraulic spring pad is under pressure;

[0042] Among them: 1—spring pad body; 11—hydraulic groove; 12—placement groove; 13—first hydraulic chamber; 14—second hydraulic chamber; 15—inner edge; 16—outer edge; 2—flow channel plate assembly; 21—upper flow channel plate; 211—flow channel groove; 22—lower flow channel plate; 221—first flow channel opening; 222—second flow channel opening; 23—partition plate; 231—installation groove; 24—outer support plate; 25—inner support plate; 26—circumventive flow channel; 3—damping fluid; 4—inner skeleton; 5—inner solid ring; 6—outer solid ring. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as limiting the present invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] The present invention relates to a hydraulic spring washer, which is used to reduce the impact of the spring, provide greater vertical damping for the spring, and solve the problem that the spring washer cannot absorb a large amount of spring deformation (amplitude). The first hydraulic chamber of the spring washer body is arranged along the lift of the spring end coil. When the spring applies pressure, the damping fluid in the first hydraulic chamber is pressed into the second hydraulic chamber through the circuitous flow channel. Figure 7Due to the viscosity of the damping fluid itself, the circuitous flow channel increases the damping of the damping fluid flow, which can relieve the pressure of the absorption spring on the spring pad. At the same time, the spring pad body also deforms to absorb part of the spring pressure, thereby improving the vertical damping effect of the spring. Compared with the existing pure rubber or polyurethane materials, the effect of absorbing the spring deformation is improved.

[0048] A hydraulic spring pad, such as Figures 1 to 7 As shown, the spring washer comprises a spring washer body 1 made of a flexible material. A sealed chamber and a damping fluid 3 are located within the sealed chamber. High-concentration ethylene glycol can be used as the damping fluid 3. The sealed chamber includes a first hydraulic chamber 13 arranged along the lift of the spring end coil, a circuitous flow channel 26 connected at one end to the first hydraulic chamber 13, and a second hydraulic chamber 14 connected at the other end to the circuitous flow channel 26. When the spring end coil corresponds to the low-pressure spring washer in the first hydraulic chamber 13, the spring washer deforms to absorb some of the force. The pressure of the damping fluid 3 in the first hydraulic chamber 13 increases, exceeding the pressure in the second hydraulic chamber 14. The damping fluid 3 then flows into the second hydraulic chamber 14 through the circuitous flow channel 26. The damping fluid 3 has a relatively high intrinsic viscosity, and the circuitous flow channel 26 provides frictional force to the flow of the damping fluid 3, creating a certain amount of damping when the damping fluid 3 flows from the first hydraulic chamber 13 to the second hydraulic chamber 14. This cushions the pressure exerted by the spring and increases the amount of spring deformation absorbed by the spring washer. The damping of the flow of the damping fluid 3 is related to the length of the detour flow channel 26 and the size of the cross-sectional area of ​​the flow channel. The longer the length of the detour flow channel 26 or the smaller the cross-sectional area of ​​the flow channel, the greater the damping. By controlling the length and cross-sectional area of ​​the detour flow channel 26, it can be adapted to the vibration reduction of the spring in different scenarios (not limited to automobile suspension).

[0049] In one embodiment, if Figure 1 As shown, the first hydraulic chamber 13 has an annular structure, which is suitable for more uniform pressure applied by the pressure spring on the spring end coil; preferably, the second hydraulic chamber 14 also has an annular structure; the circuitous flow channel 26 bends or folds from one end connected to the first hydraulic chamber 13 and then connects to the second hydraulic chamber 14, extending the distance of the damping fluid 3 flowing from the first hydraulic chamber 13 to the second hydraulic chamber 14. Due to the viscosity characteristics of the damping fluid 3 itself and the increased circulation distance length, the bent or folded circuitous flow channel 26 increases the damping of the flow from the first hydraulic chamber 13 to the second hydraulic chamber 14, thereby increasing the damping effect of the spring pad.

[0050] On the basis that the circuitous flow passage 26 is connected to the second hydraulic chamber 14 after bending or folding, as shown in FIG. Figure 1 and Figure 6 As shown, Figure 6This is a schematic diagram of the damping fluid 3 within the spring washer body 1. The second hydraulic chamber 14 is located within the annular space formed by the first hydraulic chamber 13. The detour flow channel 26 spirals inward from one end connected to the first hydraulic chamber 13 to connect to the second hydraulic chamber 14. The location of the second hydraulic chamber 14 within the annular space of the first hydraulic chamber 13 facilitates reducing the size of the spring washer device. The detour flow channel 26's spiral curve from the outside to the inside significantly extends the distance from the first hydraulic chamber 13 to the second hydraulic chamber 14, further enhancing the damping effect of the spring washer. The spiral curvature of the detour flow channel 26 ensures more uniform pressure from the damping fluid 3 on the inner wall of the detour flow channel 26 (the spring washer body 1), preventing excessive pressure at a specific location on the inner wall of the detour flow channel 26, which could cause deformation or rupture of the detour flow channel 26 and render the damping performance of the spring washer body 1 ineffective or degraded.

[0051] In one embodiment, if Figure 1 As shown, a flow plate assembly 2 is fixedly attached to the spring washer body 1. The flow plate assembly 2 and the spring washer body 1 are interlocked to form a first hydraulic chamber 13 and a second hydraulic chamber 14. The flow plate assembly 2 is provided with the aforementioned detour flow channel 26. The flow plate assembly 2 is located on one side of the spring washer body 1 to support the spring washer body 1. The flow plate assembly 2 can be made of a material harder than the spring washer body 1, preferably glass fiber nylon. The spring washer body 1 and the flow plate assembly 2 are interlocked and fixed to form a sealed chamber. The detour flow channel 26 on the flow plate connects the first hydraulic chamber 13 and the second hydraulic chamber 14, facilitating manufacturing and installation. The flow plate assembly 2 provides excellent vertical support for the spring washer body 1.

[0052] On the basis of the flow channel plate assembly 2 being fixed on the spring pad body 1, as shown in FIG. Figures 3-5As shown, the flow channel plate assembly 2 includes an upper flow channel plate 21 and a lower flow channel plate 22 fixed to one side of the upper flow channel plate 21; a circuitous flow channel 26 is sealed between the upper flow channel plate 21 and the lower flow channel plate 22; a partition plate 23 is fixed on the lower flow channel plate 22, and the partition plate 23 and the spring pad body 1 form a first hydraulic chamber 13 and a second hydraulic chamber 14 located on both sides of the partition plate 23. In an optional specific scheme, the upper flow channel plate 21 is provided with a flow channel groove 211, and the corresponding flow channel groove 211 on the lower flow channel plate 22 is penetrated by a first flow channel opening 221 and a second flow channel opening 222 for connecting the first hydraulic chamber 13 and the second hydraulic chamber 14; the upper flow channel plate 21 and the lower flow channel plate 22 can be sealed and fixed by welding; a hydraulic groove 11 is provided on the spring pad body 1, and the lower flow channel plate 22 is engaged with the spring pad body 1 to seal the hydraulic groove 11, and the partition plate 23 abuts the bottom of the hydraulic groove 11 (spring pad body 1) to separate the hydraulic groove 11 into a first hydraulic chamber 13 and a second hydraulic chamber 14. The flow channel plate assembly 2 has a simple structure. A circuitous flow channel 26 is formed by sealing and fixing the upper flow channel plate 21 and the lower flow channel plate 22. The partition plate 23 on the lower flow channel plate 22 and the spring pad body 1 form a first hydraulic chamber 13 and a second hydraulic chamber 14 separated from each other, which is convenient for production and installation. In addition, the sealed cavity has no inlet for the damping fluid 3, which avoids the situation where the inlet has excessive pressure or long-term use and other reasons lead to poor sealing.

[0053] Based on the fact that the flow channel plate assembly 2 includes an upper flow channel plate 21 and a lower flow channel plate 22 fixed to one side of the upper flow channel plate 21, in a certain embodiment, as Figure 4 As shown, the flow channel plate assembly 2 is provided with an outer support plate 24. The outer support plate 24 is adjacent to the outer edge 16 of the spring washer body 1 and abuts outwardly against the outer edge 16 of the spring washer body 1 to seal the outside of the first hydraulic chamber 13. A gap is formed between the outer support plate 24 and the bottom wall of the first hydraulic chamber 13. In an optional embodiment, the outer support plate 24 is provided on the lower flow channel plate 22 to seal the outer edge 16 of the spring washer body 1, that is, to seal the first hydraulic chamber 13. Preferably, the lower flow channel plate 22 is also provided with an inner support plate 25. The inner support plate 25 is adjacent to the inner edge 15 of the spring washer body 1 and abuts inwardly against the inner edge 15 of the spring washer body 1 to seal the inside of the second hydraulic chamber 14. The outer support plate 24 abuts outward against the outer edge 16 of the spring washer body 1 to seal the first hydraulic chamber 13. The gap between the outer support plate 24 and the bottom wall of the first hydraulic chamber 13 facilitates the flow of the damping fluid 3 through this gap to fill the sealed chamber after the outer edge 16 of the spring washer body 1 is later opened.

[0054] In one embodiment, if Figure 1As shown, the spring washer body 1 is provided with a weight-reducing hole, preferably located in the middle of the spring washer body 1, so that the spring washer body 1 has an annular structure. More preferably, the upper flow plate 21 and the lower flow plate 22 both have an annular structure, and when the flow plate assembly 2 formed by the upper flow plate 21 and the lower flow plate 22 is assembled and mounted on the spring washer body 1, the inner and outer circumferential sides of the flow plate assembly 2 respectively seal inwardly and outwardly against the inner edge 15 and outer edge 16 of the spring washer body 1.

[0055] In certain embodiments, as Figure 1 As shown, the spring washer body 1 is annular in structure, with an inner securing ring 5 and an outer securing ring 6 respectively sleeved on the inner and outer sides of the spring washer body 1. The inner securing ring 5 and the outer securing ring 6 form a supporting relationship with the flow channel plate assembly 2 in the inner and outer directions, sealing the first hydraulic chamber 13 and the second hydraulic chamber 14 while also securing the spring washer body 1. The inner securing ring 5 and the outer securing ring 6 can be made of metal, which has high rigidity and durability. The outer ring of the annular structure of the spring washer body 1 is not limited to a circular cross-section and can be a rectangular, polygonal, or other shape that can be tightened around. In an optional embodiment, the outer securing ring 6 is sleeved over the outer edge 16 of the spring washer body 1, tightly against the outer support plate 24. The inner securing ring 5 is sleeved within the spring washer body 1, abutting the inner edge 15 outwardly, so that it abuts the inner support plate 25. The inner securing ring 5 and the outer securing ring 6 provide a secondary seal for the first and second hydraulic chambers 13 and 14.

[0056] On the basis of the flow channel plate assembly 2 being fixed on the spring pad body 1, as shown in FIG. Figure 2 As shown, the spring washer body 1 is provided with a placement slot 12 for mounting the spring. The placement slot 12 corresponds to the lift position of the spring end coil. An annular inner frame 4 is located within the spring washer body 1. The inner frame 4 is positioned either inside or outside the annular space formed by the placement slot 12. The inner frame 4 is embedded within the spring washer body 1 through a vulcanization process. The spring washer body 1 can be mounted and coupled to the spring end via the placement slot 12. The inner frame 4 protects the spring washer body 1 when the spring applies pressure to it, preventing damage caused by excessive deformation beyond its maximum deformability.

[0057] On the basis of the ring-shaped inner frame 4 provided in the spring pad body 1, as shown in FIG. Figure 1 and Figure 4As shown, the flow plate assembly 2 and the inner frame 4 form a supporting relationship in the axial direction of the spring washer body 1. In an optional embodiment, the end of the separation plate 23 of the flow plate assembly 2 is provided with a mounting groove 231, and the inner frame 4 is embedded and fixed in the mounting groove 231. The surface of the inner frame 4 is covered by the spring washer body 1. When embedded in the mounting groove 231, the inner frame 4 and the separation plate contact surface are sealed. When the spring pressure is applied, the inner frame 4 can reduce the deformation of the spring washer body 1, and the pressure is mainly absorbed by the flow of damping fluid 3 in the sealed cavity, further protecting the spring washer body 1.

[0058] In actual use, a flow channel 21 is provided at the bottom of the upper flow channel plate 21, and a first flow channel opening 221 and a second flow channel opening 222 are provided at both ends of the corresponding flow channel 211 on the lower flow channel plate 22. The upper flow channel plate 21 and the lower flow channel plate 22 are sealed and fixed to the flow channel 211 to form a circuitous flow channel 26; a partition plate 23 is provided on the lower flow channel plate 22; the partition plate 23 is annular and is arranged axially along the spring washer body 1; a mounting groove 231 is provided at the bottom end of the partition plate 23; the spring washer body 1 is annular in structure, and a placement groove 12 for placing the spring end is provided on one side of the spring washer body 1, and the placement groove 12 is annular corresponding to the lift setting of the spring washer; an annular hydraulic groove 11 is provided on the spring washer body 1, and the notch of the hydraulic groove 11 is away from the notch of the placement groove 12; an annular inner skeleton 4 is provided on the spring washer body 1; the flow channel plate assembly 2 is embedded in the hydraulic groove 11 of the spring washer body 1, and the partition plate 23 is provided. The hydraulic groove 11 is divided into a first hydraulic chamber 13 and a second hydraulic chamber 14; the first hydraulic chamber 13 is located above the placement groove 12; the mounting groove 231 at the bottom end of the partition plate 23 is engaged with the inner skeleton 4 to form a supporting relationship in the axial direction of the spring pad body 1; the detour flow channel 26 connects the first hydraulic chamber 13 and the second hydraulic chamber 14 respectively through the first flow channel opening 221 and then the second flow channel opening 222; the lower flow channel plate 22 is provided with an annular inner support plate 25 and an outer support plate 24, which respectively abut the inner edge portion 15 of the spring pad body 1 inwardly and the outer edge portion 16 outwardly; the inner and outer peripheral sides of the spring pad body 1 are respectively sleeved with an inner fixing ring 5 and an outer fixing ring 6; the inner fixing ring 5 and the outer fixing ring 6 press the inner edge portion 15 and the outer edge portion 16 onto the inner support plate 25 and the outer support plate 24 in the inner and outer directions, respectively, to reinforce and seal the first hydraulic chamber 13 and the second hydraulic chamber 14.

[0059] Another aspect of the present invention further provides a method for installing a hydraulic spring pad, which is used to install the hydraulic spring pad provided by the present invention. The installation method includes:

[0060] S1. Place the flow channel plate assembly 2 and the spring washer body 1 in the damping fluid 3, and press-fit them after the damping fluid 3 fills the sealed cavity; or place the flow channel plate assembly 2 and the spring washer body 1 in the damping fluid 3 after the sealed cavity is formed by press-fitting them together, and then open the edge portion (15 and / or 16) where the spring washer body 1 and the flow channel plate assembly abut against each other to allow the damping fluid 3 to flow into the sealed cavity;

[0061] S2. The inner edge portion 15 and the outer edge portion 16 of the spring washer body 1 and the flow channel plate assembly 2 are sealed and fixed.

[0062] A method for installing a hydraulic spring pad according to the present invention further includes:

[0063] S10, fixing the inner frame 4 to the spring washer body 1, and sealingly fixing the upper flow channel plate 21 and the lower flow channel plate 22 to form a flow channel plate assembly 2 with a circuitous flow channel 26;

[0064] In step S1, the method for sealing and fixing the inner edge portion 15 and the outer edge portion 16 of the spring washer body 1 and the flow channel plate assembly 2 in contact with each other includes:

[0065] S11, the inner and outer fixing rings 5 ​​and 6 are respectively connected by interference fit on the inner and outer sides of the spring pad body 1 so that they form a supporting relationship with the flow channel plate assembly 2 to achieve sealing and fixing. Figure 1 As shown, the inner fixing ring 5 is sleeved on the inner circumference of the annular spring washer body 1, so that the outer circumference of the inner fixing ring 5 is tightly against the inner circumference of the spring washer body 1, and the inner edge portion 15 is tightly pressed against the flow channel plate assembly 2 outward; the outer fixing ring 6 is sleeved on the outer circumference of the annular spring washer body 1, so that the inner circumference of the outer fixing ring 6 is tightly against the outer circumference of the spring washer body 1, and the outer edge portion 16 is tightly pressed against the flow channel plate assembly 2 inward.

[0066] According to a method for installing a hydraulic spring washer provided by the present invention, in step S10 , the method for fixing the inner skeleton 4 to the spring washer body 1 includes fixing the inner skeleton 4 to the spring washer body 1 by vulcanization.

[0067] According to a method for installing a hydraulic spring pad provided by the present invention, in step S1, the interlocking and pressing includes placing the mounting groove 231 of the partition plate 23 of the flow channel plate assembly 2 corresponding to the inner skeleton 4, and then pressing the spring pad body 1 and the flow channel plate assembly 2 so that the inner skeleton 4 is sealed and fixed in the mounting groove 231, and the flow channel plate assembly 2 and the spring pad body 1 form a sealed cavity.

[0068] During the actual installation, the inner skeleton 4 is vulcanized and fixed to the spring pad body 1, and the upper flow channel plate 21 and the lower flow channel plate 22 are welded and sealed to form a flow channel plate assembly 2 with a circuitous flow channel 26; the flow channel plate assembly 2 and the spring pad body 1 are then placed in the damping fluid 3 and the damping fluid 3 is filled with the circuitous flow channel 26, the first hydraulic chamber 13 and the second hydraulic chamber 14, and the mounting groove 231 of the partition plate 23 of the flow channel plate assembly 2 is placed on the inner skeleton 4 accordingly, and the spring pad body 1 and the flow channel plate assembly 2 are pressed tightly, so that the inner skeleton 4 is sealed and fixed in the mounting groove 231 and the flow channel plate assembly 2 is fixed. A sealed cavity is formed with the spring washer body 1; or the flow channel plate assembly 2 and the spring washer body 1 are press-fitted and then placed in the damping fluid 3, the outer edge portion 16 of the spring washer body 1 is opened to expose the first hydraulic cavity 13, and after the damping fluid 3 flows into the circuitous flow channel 26, the first hydraulic cavity 13 and the second hydraulic cavity 14, the opened outer edge portion 16 is closed to seal the first hydraulic cavity 13; an inner fixed ring 5 and an outer fixed ring 6 are press-fitted on the inner and outer circumferences of the annular spring washer body 1, so that the inner fixed ring 5 and the outer fixed ring 6 are respectively interference-fitted and sleeved on the inner and outer circumferences of the spring washer body 1 to seal the edge portions (15, 16).

[0069] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic spring pad, characterized in that: The invention comprises a spring washer body (1), wherein a sealing cavity and a damping fluid (3) are provided in the sealing cavity; the sealing cavity comprises a first hydraulic cavity (13) provided along the lift of the spring end coil, a circuitous flow passage (26) having one end connected to the first hydraulic cavity (13), and a second hydraulic cavity (14) connected to the other end of the circuitous flow passage (26); The first hydraulic chamber (13) is annular; The second hydraulic chamber (14) is located in the annular space formed by the first hydraulic chamber (13); the circuitous flow channel (26) spirally bends inward from one end connected to the first hydraulic chamber (13) and then connects to the second hydraulic chamber (14); A flow channel plate assembly (2) is fixedly connected to the spring washer body (1), and the flow channel plate assembly (2) and the spring washer body (1) are engaged to form the first hydraulic chamber (13) and the second hydraulic chamber (14); the flow channel plate assembly (2) is provided with the circuitous flow channel (26); The flow channel plate assembly (2) comprises an upper flow channel plate (21) and a lower flow channel plate (22) fixedly connected to one side of the upper flow channel plate (21); the circuitous flow channel (26) is formed by sealing between the upper flow channel plate (21) and the lower flow channel plate (22); a partition plate (23) is fixedly provided on the lower flow channel plate (22); the partition plate (23) and the spring pad body (1) form a first hydraulic chamber (13) and a second hydraulic chamber (14) located on both sides of the partition plate (23).

2. A hydraulic spring washer according to claim 1, characterized in that: An outer support plate (24) is provided on the flow channel plate assembly (2), and the outer support plate (24) is close to the outer edge portion (16) of the spring pad body (1) and abuts against the outer edge portion (16) of the spring pad body (1) to seal the outer side of the first hydraulic chamber (13); a gap is provided between the outer support plate (24) and the bottom wall of the first hydraulic chamber (13).

3. A hydraulic spring washer according to any one of claims 1-2, characterized in that: The spring washer body (1) is an annular structure, and an inner fixing ring (5) and an outer fixing ring (6) are respectively sleeved on the inner and outer sides of the spring washer body (1); the inner fixing ring (5) and the outer fixing ring (6) form a supporting relationship with the flow channel plate assembly (2) in the inner and outer directions.

4. The hydraulic spring washer according to claim 1, wherein: The spring pad body (1) is provided with a placement groove (12) for installing a spring; an annular inner frame (4) is provided inside the spring pad body (1); the inner frame (4) is located radially inside or outside the annular space formed by the placement groove (12).

5. The hydraulic spring washer according to claim 4, characterized in that: The flow channel plate assembly (2) and the inner skeleton (4) form a supporting relationship in the axial direction of the spring pad body (1).

6. A method for installing a hydraulic spring pad, characterized in that: Used for installing the hydraulic spring pad according to any one of claims 1 to 5, the installation method includes: The flow channel plate assembly (2) and the spring washer body (1) are placed in the damping liquid (3), and after the damping liquid (3) fills the sealing cavity, they are engaged and pressed together; or the flow channel plate assembly (2) and the spring washer body (1) are engaged and pressed together to form a sealing cavity, and then placed in the damping liquid (3), and the spring washer body (1) and the flow channel plate assembly (2) are opened to abut against the sealed edge to allow the damping liquid (3) to flow into the sealing cavity; The inner edge portion (15) and the outer edge portion (16) of the spring pad body (1) abutting against the flow channel plate assembly (2) are sealed and fixed.

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