Hydraulic rubber jacking assembly of automobile shock absorber

Abstract

The utility model discloses a hydraulic rubber jacking assembly of an automobile shock absorber, which relates to the technical field of automobile parts and comprises a shell, and an upper hydraulic sealing main spring component, a lower hydraulic sealing main spring component and a runner component are arranged in the shell. The shell, the upper hydraulic sealing main spring assembly and the lower hydraulic sealing main spring assembly form a closed inner cavity. The flow channel assembly is arranged in the inner cavity and divides the inner cavity into an upper liquid chamber and a lower liquid chamber, the flow channel assembly is provided with a flow channel used for communicating the upper liquid chamber with the lower liquid chamber, and the upper liquid chamber, the lower liquid chamber and the flow channel are filled with damping liquid; the upper hydraulic sealing main spring assembly comprises an inner framework and a first middle ring; the first middle ring is concentrically arranged on the outer side of the inner framework and is in vulcanization connection with the inner framework through the first rubber body; the lower hydraulic sealing main spring assembly comprises a center pipe and a second middle ring, the upper end of the center pipe is inserted into a center hole of the inner framework, and the second middle ring is concentrically arranged on the outer side of the lower end of the center pipe and is in vulcanization connection with the center pipe through a second rubber body.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and particularly relates to a hydraulic top rubber assembly for an automobile shock absorber. Background Art

[0002] The top rubber of the shock absorber is an important automobile part, and its function cannot be underestimated. The main functions of the top rubber of the shock absorber are: 1. buffering and shock absorption; 2. increasing comfort; 3. sound insulation and noise reduction. With the rapid development of the automobile industry and the improvement of people's requirements for driving comfort, some disadvantages of the traditional rubber top rubber of the shock absorber gradually come into people's view during driving. For example, it cannot quickly reduce shock and noise under certain specific working conditions, etc. For example, the Chinese patent documents "A detachable upper air chamber structure" (patent publication number: CN118066241A), "A detachable upper air chamber structure for an air spring" (patent publication number: CN221097292U) and "Top rubber structure and vehicle" (patent publication number: CN220947416U) all have the above problems. Content of the Utility Model

[0003] Aiming at the defects existing in the prior art, the purpose of the utility model is to provide a hydraulic top rubber assembly for an automobile shock absorber. The utility model applies the excellent shock absorption characteristics of the liquid resistance product to the top rubber of the automobile shock absorber to improve the shock absorption characteristics of the hydraulic shock absorption product and better improve the driving comfort of the vehicle.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a hydraulic top rubber assembly for an automobile shock absorber, including a housing, wherein an upper hydraulic sealing main spring assembly, a lower hydraulic sealing main spring assembly and a flow channel assembly are arranged in the housing; the housing, the upper hydraulic sealing main spring assembly and the lower hydraulic sealing main spring assembly form a closed inner cavity; the flow channel assembly is arranged in the inner cavity and divides the inner cavity into an upper liquid chamber and a lower liquid chamber, and the flow channel assembly is provided with a flow channel for communicating the upper liquid chamber and the lower liquid chamber, and damping liquid is filled in the upper liquid chamber, the lower liquid chamber and the flow channel; the upper hydraulic sealing main spring assembly includes an inner skeleton and a first middle ring; the inner skeleton is in a circular ring shape, and the first middle ring is concentrically arranged outside the inner skeleton and is vulcanized and connected with the inner skeleton through a first rubber body; the lower hydraulic sealing main spring assembly includes a central tube and a second middle ring, the upper end of the central tube is inserted into the central hole of the inner skeleton, and the second middle ring is concentrically arranged outside the lower end of the central tube and is vulcanized and connected with the central tube through a second rubber body.

[0005] Further improvement lies in that: a first inclined surface is arranged at the lower end of the outer side surface of the inner skeleton.

[0006] The further improvement lies in that: the first rubber body includes a first body, a first wrapping portion is arranged on the outer side of the first body, and the first wrapping portion is vulcanized and wrapped on the surface of the first middle ring; a first bayonet portion is arranged on the inner side of the first body, and the first bayonet portion is vulcanized and connected to the top surface, the outer side surface and the first inclined surface of the inner skeleton.

[0007] The further improvement lies in that: a plurality of first protrusion portions are arranged at the top of the first bayonet portion.

[0008] The further improvement lies in that: the central tube includes a tube body, a boss is arranged at a position near the lower end on the outer side of the tube body, and a second inclined surface is arranged at the upper end of the outer side surface of the boss.

[0009] The further improvement lies in that: the second rubber body includes a second body, a second wrapping portion is arranged on the outer side of the second body, and the second wrapping portion is vulcanized and wrapped on the surface of the second middle ring; a second bayonet portion is arranged on the inner side of the first body, and the second bayonet portion is vulcanized and connected to the bottom surface, the outer side surface and the second inclined surface of the boss.

[0010] The further improvement lies in that: a plurality of second protrusion portions are arranged at the bottom of the second bayonet portion.

[0011] The further improvement lies in that: the upper end of the tube body is flush with the inner skeleton, and a limiting step adapted to the inner skeleton is arranged at a position near the upper end of the outer side wall of the tube body; the lower end of the tube body is bent inward to form a flanging portion.

[0012] The further improvement lies in that: the flow channel assembly includes a flow channel assembly and an outer skeleton; the outer skeleton is in a cylindrical shape, and the outer side surface of the outer skeleton abuts against the inner wall of the housing; the flow channel assembly is arranged inside the outer skeleton and is vulcanized and connected to the inner side of the outer skeleton through a third rubber body.

[0013] The further improvement lies in that: the flow channel assembly includes two ring bodies that are buckled with each other up and down, both ring bodies are provided with cooperating positioning pins and positioning holes, and a flow channel for communicating the upper liquid chamber and the lower liquid chamber is arranged on the ring body.

[0014] The beneficial effect of the present utility model lies in that:

[0015] The present utility model applies the excellent shock absorption characteristics of the liquid resistance product to the top rubber of the vehicle shock absorber to improve the shock absorption characteristics of the hydraulic shock absorption product and better improve the riding comfort of the vehicle. In addition, in addition to the shock absorption characteristics of the ordinary rubber top rubber, the hydraulic top rubber can also improve the shock absorption characteristics of the product at a fixed point, solve the pain points of a certain specific working condition during the vehicle driving process, and thus can significantly improve the riding comfort of the whole vehicle. Description of the Drawings

[0016] Figure 1It is a three-dimensional view of the hydraulic top mount assembly of the vehicle shock absorber in the embodiment of the present utility model;

[0017] Figure 2 It is the front view of the hydraulic top mount assembly of the vehicle shock absorber in the embodiment of the present utility model;

[0018] Figure 3 It is Figure 2 the cross-sectional view in the A-A direction in;

[0019] Figure 4 It is a three-dimensional view of the upper hydraulic seal main spring assembly in the embodiment of the present utility model;

[0020] Figure 5 It is the front view of the upper hydraulic seal main spring assembly in the embodiment of the present utility model;

[0021] Figure 6 It is Figure 5 the cross-sectional view in the B-B direction in;

[0022] Figure 7 It is the cross-sectional view of the inner skeleton in the embodiment of the present utility model;

[0023] Figure 8 It is a three-dimensional view of the lower hydraulic seal main spring assembly in the embodiment of the present utility model;

[0024] Figure 9 It is the front view of the lower hydraulic seal main spring assembly in the embodiment of the present utility model;

[0025] Figure 10 It is Figure 9 the cross-sectional view in the C-C direction in;

[0026] Figure 11 It is the cross-sectional view of the center pipe in the embodiment of the present utility model;

[0027] Figure 12 It is a three-dimensional view of the flow channel assembly in the embodiment of the present utility model;

[0028] Figure 13 It is the front view of the flow channel assembly in the embodiment of the present utility model;

[0029] Figure 14 It is Figure 13 the cross-sectional view in the D-D direction in;

[0030] Figure 15 It is the front view of the flow channel assembly in the embodiment of the present utility model;

[0031] Figure 16 It is Figure 15 the cross-sectional view in the E-E direction in;

[0032] Figure 17 It is Figure 15Cross-sectional view in the F-F direction;

[0033] Figure 18 This is a comparison graph of the damping and dynamic stiffness curves between the hydraulic rubber mounting assembly of the vehicle shock absorber and the ordinary rubber mounting in the embodiment of the present utility model.

[0034] Reference numerals:

[0035] 1 - Housing;

[0036] 2 - Upper hydraulic sealing main spring assembly; 21 - Inner skeleton; 211 - First inclined surface; 22 - First middle ring; 23 - First rubber body; 231 - First body; 232 - First wrapping part; 233 - First bayonet part; 234 - First convex part;

[0037] 3 - Lower hydraulic sealing main spring assembly; 31 - Central tube; 311 - Tube body; 312 - Second inclined surface; 313 - Boss; 314 - Limiting step; 315 - Flanging part; 32 - Second middle ring; 33 - Second rubber body; 331 - Second body; 332 - Second wrapping part; 333 - Second bayonet part; 334 - Second convex part;

[0038] 4 - Flow channel assembly; 41 - Flow channel assembly; 411 - Ring body; 412 - Flow channel; 413 - Locating pin; 414 - Locating hole; 42 - Outer skeleton; 43 - Third rubber body;

[0039] 5 - Upper liquid chamber;

[0040] 6 - Lower liquid chamber. Detailed implementation manners

[0041] The embodiments of the present utility model will be described in detail below. The illustrated embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0042] In the description of the present utility model, it should be noted that for the orientation terms, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationships shown in the accompanying drawings. It 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 should not be construed as limiting the specific protection scope of the present utility model.

[0043] In addition, terms such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0044] In the present utility model, unless otherwise clearly specified and defined, terms such as "assembled", "connected", and "joined" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it can be directly connected or connected through an intermediate medium, and can be internally connected and communicated between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In the utility model, unless otherwise specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "below", and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "above", "below", and "beneath" the second feature includes the first feature being directly below or diagonally below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0046] The following further describes the specific embodiments of the present utility model in conjunction with the drawings of the specification, making the technical solutions and their beneficial effects of the present utility model clearer and more definite. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0047] See Figures 1 to 3 As shown, an embodiment of the present utility model provides a hydraulic top mount assembly for an automotive shock absorber, which includes a housing 1. An upper hydraulic seal main spring assembly 2, a lower hydraulic seal main spring assembly 3, and a flow channel assembly 4 are arranged inside the housing 1. The housing 1, the upper hydraulic seal main spring assembly 2, and the lower hydraulic seal main spring assembly 3 form a closed inner cavity. The flow channel assembly 4 is arranged in the inner cavity and divides the inner cavity into an upper liquid chamber 5 and a lower liquid chamber 6. The flow channel assembly 4 is provided with a flow channel 412 for communicating the upper liquid chamber 5 and the lower liquid chamber 6. The upper liquid chamber 5, the lower liquid chamber 6, and the flow channel 412 are filled with damping liquid.

[0048] See Figures 4 to 7As shown in the figure, the upper hydraulic seal main spring assembly 2 includes an inner skeleton 21 and a first middle ring 22; the inner skeleton 21 is in a circular ring shape, and the first middle ring 22 is concentrically arranged outside the inner skeleton 21 and vulcanized and connected to the inner skeleton 21 through a first rubber body 23; specifically, a first inclined surface 211 is arranged at the lower end of the outer side surface of the inner skeleton 21. The first rubber body 23 includes a first body 231, a first wrapping portion 232 is arranged on the outer side of the first body 231, and the first wrapping portion 232 is vulcanized and wrapped on the surface of the first middle ring 22; a first bayonet portion 233 is arranged on the inner side of the first body 231, and the first bayonet portion 233 is vulcanized and connected to the top surface, outer side surface and first inclined surface 211 of the inner skeleton 21. A number of first protrusion portions 234 are arranged at the top of the first bayonet portion 233.

[0049] See Figures 8 to 11 As shown in the figure, the lower hydraulic seal main spring assembly 3 includes a center tube 31 and a second middle ring 32. The upper end of the center tube 31 is inserted into the center hole of the inner skeleton 21, and the second middle ring 32 is concentrically arranged outside the lower end of the center tube 31 and vulcanized and connected to the center tube 31 through a second rubber body 33. Specifically, the center tube 31 includes a tube body 311, a boss 313 is arranged at a position near the lower end on the outer side of the tube body 311, and a second inclined surface 312 is arranged at the upper end of the outer side surface of the boss 313. The second rubber body 33 includes a second body 331, a second wrapping portion 332 is arranged on the outer side of the second body 331, and the second wrapping portion 332 is vulcanized and wrapped on the surface of the second middle ring 32; a second bayonet portion 333 is arranged on the inner side of the first body 231, and the second bayonet portion 333 is vulcanized and connected to the bottom surface, outer side surface and second inclined surface 312 of the boss 313. A number of second protrusion portions 334 are arranged at the bottom of the second bayonet portion 333. The upper end of the tube body 311 is flush with the inner skeleton 21, and a limiting step 314 adapted to the inner skeleton 21 is arranged at a position near the upper end of the outer side wall of the tube body 311; the lower end of the tube body 311 is bent inward to form a flanging portion 315.

[0050] See Figures 12 to 14 As shown in the figure, the flow channel assembly 4 includes a flow channel assembly 41 and an outer skeleton 42; the outer skeleton 42 is in a cylindrical shape, and the outer side surface of the outer skeleton 42 abuts against the inner wall of the housing 1; the flow channel assembly 41 is arranged inside the outer skeleton 42 and vulcanized and connected to the inner side of the outer skeleton 42 through a third rubber body 43.

[0051] See Figures 15 to 17 As shown in the figure, the flow channel assembly 41 includes two ring bodies 411 that are buckled with each other up and down. Both of the two ring bodies 411 are provided with a positioning pin 413 and a positioning hole 414 that cooperate with each other, and a flow channel 412 for communicating the upper liquid chamber 5 and the lower liquid chamber 6 is arranged on the ring body 411.

[0052] See Figure 18As shown, the shock absorption characteristics (damping and dynamic stiffness) of the ordinary hydraulic rubber mounts are directly proportional to the vibration frequency. In addition to having the shock absorption characteristics of ordinary rubber mounts, the hydraulic rubber mounts can also improve the shock absorption characteristics of the product at fixed points, solve the pain points of a specific working condition during vehicle driving, and thus significantly improve the ride comfort of the whole vehicle.

[0053] The use of the present utility model can ensure the performance of the rubber mounts of traditional shock absorbers, and can, according to the requirements of the whole vehicle, solve some shock absorption and noise reduction effects under specific working conditions of the vehicle, with remarkable effects.

[0054] Compared with the linear dynamic characteristics of traditional rubber mounts, the hydraulic rubber mounts have non-linear dynamic characteristics, can provide a large damping lag angle within a certain frequency range, and play an excellent role in attenuating vibration; or provide a small dynamic stiffness characteristic within a certain frequency range to reduce the vibration transmission rate and play a role in noise reduction. Due to these good working performances, the hydraulic rubber mounts are used more and more widely in automobiles.

[0055] The assembly process of the present utility model:

[0056] First, assemble the flow channel component and the lower hydraulic seal main spring component together; at this time, the flow channel is in interference fit with the inner wall of the inner tube and is limited by the limiting end face of the lower end inner tube; then assemble the upper hydraulic seal main spring component with the component together; then assemble the assembled component with the outer tube together, and perform edge closing treatment on both ends of the outer tube to ensure the sealing environment of the rubber mount. The liquid filling method of this rubber mount can adopt dry canning or wet canning.

[0057] In the description of the specification, the description with reference to terms such as "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0058] Through the above description of the structure and principle, those skilled in the art should understand that the present utility model is not limited to the above specific embodiments, and the improvements and substitutions using the well-known technologies in the art on the basis of the present utility model all fall within the protection scope of the present utility model, which should be defined by each claim.

Claims

1. An automotive shock absorber hydraulic top mount assembly, comprising a housing (1), wherein an upper hydraulic sealing main spring assembly (2), a lower hydraulic sealing main spring assembly (3) and a flow channel assembly (4) are arranged inside the housing (1); a closed inner cavity is formed by the housing (1), the upper hydraulic sealing main spring assembly (2) and the lower hydraulic sealing main spring assembly (3); the flow channel assembly (4) is arranged in the inner cavity and divides the inner cavity into an upper liquid chamber (5) and a lower liquid chamber (6), and the flow channel assembly (4) is provided with a flow channel (412) for communicating the upper liquid chamber (5) and the lower liquid chamber (6), and damping liquid is filled in the upper liquid chamber (5), the lower liquid chamber (6) and the flow channel (412); it is characterized in that: The upper hydraulic seal main spring assembly (2) includes an inner skeleton (21) and a first middle ring (22); the inner skeleton (21) is in a circular ring shape, and the first middle ring (22) is concentrically arranged outside the inner skeleton (21) and vulcanized and connected to the inner skeleton (21) through a first rubber body (23). The lower hydraulic seal main spring assembly (3) includes a central tube (31) and a second middle ring (32). The upper end of the central tube (31) is inserted into the central hole of the inner skeleton (21), and the second middle ring (32) is concentrically arranged outside the lower end of the central tube (31) and vulcanized and connected to the central tube (31) through a second rubber body (33).

2. The hydraulic top mount assembly of an automotive shock absorber according to claim 1, characterized in that: A first inclined surface (211) is arranged at the lower end of the outer side surface of the inner skeleton (21).

3. The hydraulic top mount assembly for an automotive shock absorber according to claim 2, wherein: The first rubber body (23) includes a first body (231). A first wrapping portion (232) is arranged on the outer side of the first body (231), and the first wrapping portion (232) is vulcanized and wrapped on the surface of the first middle ring (22); a first bayonet portion (233) is arranged on the inner side of the first body (231), and the first bayonet portion (233) is vulcanized and connected to the top surface, the outer side surface and the first inclined surface (211) of the inner skeleton (21).

4. The automotive shock absorber hydraulic top mount assembly according to claim 3, wherein: A plurality of first convex portions (234) are arranged at the top of the first bayonet portion (233).

5. The hydraulic rubber mounting assembly for an automotive shock absorber according to claim 1, wherein: The central tube (31) includes a tube body (311). A boss (313) is arranged at a position near the lower end on the outer side of the tube body (311), and a second inclined surface (312) is arranged at the upper end of the outer side surface of the boss (313).

6. The hydraulic top mount assembly for an automotive shock absorber according to claim 5, characterized in that: The second rubber body (33) includes a second body (331). A second wrapping portion (332) is arranged on the outer side of the second body (331), and the second wrapping portion (332) is vulcanized and wrapped on the surface of the second middle ring (32); a second bayonet portion (333) is arranged on the inner side of the first body (231), and the second bayonet portion (333) is vulcanized and connected to the bottom surface, the outer side surface and the second inclined surface (312) of the boss (313).

7. The hydraulic top mount assembly for an automotive shock absorber according to claim 6, wherein: A plurality of second convex portions (334) are arranged at the bottom of the second bayonet portion (333).

8. The hydraulic rubber mounting assembly for an automotive shock absorber according to claim 5, wherein: The upper end of the tube body (311) is flush with the inner skeleton (21), and a limiting step (314) adapted to the inner skeleton (21) is arranged at a position near the upper end of the outer side wall of the tube body (311); the lower end of the tube body (311) is bent inward to form a flanging portion (315).

9. The hydraulic top mount assembly of an automotive shock absorber according to claim 1, wherein: The flow channel assembly (4) includes a flow channel assembly (41) and an outer skeleton (42); the outer skeleton (42) is in a cylindrical shape, and the outer side surface of the outer skeleton (42) abuts against the inner wall of the housing (1); the flow channel assembly (41) is arranged inside the outer skeleton (42) and vulcanized and connected to the inner side of the outer skeleton (42) through a third rubber body (43).

10. The automotive shock absorber hydraulic top mount assembly according to claim 9, characterized in that: The flow channel assembly (41) includes two ring bodies (411) that are buckled with each other up and down. Both ring bodies (411) are provided with a positioning pin (413) and a positioning hole (414) that cooperate with each other, and a flow channel (412) for communicating the upper liquid chamber (5) and the lower liquid chamber (6) is arranged on the ring body (411).

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