Partitioned heat-insulated shock absorber aluminum cylinder structure

Abstract

The utility model discloses a partition heat -insulation's shock absorber aluminium cylinder structure, include: half arc protective housing, the inside of half arc protective housing is provided with the cylinder, and half arc protective housing symmetry sets up at the outside of cylinder, the utility model relates to shock absorber aluminium cylinder technical field, this arc protective housing and cylinder, through the partition heat -insulation of aluminium foil cylinder, necked aluminium foil sleeve and flared aluminium foil sleeve is made of the aluminium foil cylinder of glass fiber reinforced aluminium foil in the high risk heat area of cylinder middle part, blocks most conduction heat, and the reinforcing property of glass fiber can resist the high frequency vibration of shock absorber work, for the low risk heat area of cylinder both ends, adopt the necked aluminium foil sleeve and flared aluminium foil sleeve of single layer pure aluminium foil, reduce material cost greatly while satisfying basic heat -insulation demand, through the half arc protective housing of symmetry setting and wrapping in aluminium foil structure outside, its inner wall and aluminium foil outer wall slide connection, can through the camber of self and tightly press together aluminium foil layer in the outer wall of cylinder.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber aluminum cylinder technology, specifically a shock absorber aluminum cylinder structure with zoned heat insulation. Background Technology

[0002] As a core component of a vehicle's suspension system, the performance and stability of the shock absorber directly affect the comfort and safety of the vehicle's ride. During the operation of the shock absorber, the internal damping oil continuously generates heat due to the reciprocating friction of the piston. At the same time, the outside of the shock absorber may be affected by radiant heat from heat sources such as the engine and exhaust pipe, leading to a rise in the temperature of the shock absorber body.

[0003] Currently, most shock absorber aluminum cylinders on the market adopt a design scheme of "uniform heat insulation for the whole area" or "no targeted heat insulation", which is difficult to adapt to the heat load requirements of different areas. Some shock absorbers designed for high-temperature conditions will wrap the entire outer wall of the cylinder with high-strength heat insulation material to avoid heat affecting the performance of components. Although this design can meet the heat insulation requirements of high-risk heat areas, it is "high-quality material used for low-risk heat areas at both ends of the cylinder", which greatly increases the material cost. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a zoned heat insulation shock absorber aluminum cylinder structure, which solves the problem that most shock absorber aluminum cylinders on the market adopt a design scheme of "uniform heat insulation for the whole area" or "no targeted heat insulation", making it difficult to adapt to the heat load requirements of different areas.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A zoned heat-insulating shock absorber aluminum cylinder structure includes: a semi-arc protective shell, a cylinder body is disposed inside the semi-arc protective shell, and the semi-arc protective shell is symmetrically disposed outside the cylinder body; an aluminum foil cylinder is slidably connected to the outer wall of the cylinder body, a narrowed aluminum foil sleeve is slidably connected to the outer wall of the cylinder body, and an flared aluminum foil sleeve is slidably connected to the outer wall of the cylinder body.

[0009] Preferably, the outer wall of the aluminum foil tube is in contact with the outer wall of the narrowed aluminum foil sleeve, and the outer wall of the aluminum foil tube on the side away from the narrowed aluminum foil sleeve is in contact with the outer wall of the flared aluminum foil sleeve. The aluminum foil tube is made of glass fiber reinforced aluminum foil material, which has better tensile strength and heat insulation than pure aluminum foil. The narrowed aluminum foil sleeve and the flared aluminum foil sleeve are made of single-layer pure aluminum foil material, which has good heat insulation, low cost, and is easy to cut and fit.

[0010] Preferably, the outer wall of the semi-circular protective shell is symmetrically fixedly connected with mounting plates, the inner wall of the mounting plates is slidably connected with screws, the outer walls of the upper and lower ends of the semi-circular protective shell are fixedly connected with threaded rods, the outer walls of the threaded rods are slidably connected with baffles, and the outer wall of the semi-circular protective shell is fixedly connected with reinforcing support plates. The reinforcing support plates can act as "reinforcing ribs" of the protective shell, dispersing impact loads, preventing the semi-circular protective shell from denting due to insufficient rigidity, and protecting the internal aluminum foil layer and cylinder.

[0011] Preferably, the threaded rods are arranged in a ring around the central point of the semi-circular shell, and the reinforcing support plates are arranged in a ring around the central point of the semi-circular shell. The symmetrically arranged semi-circular shells are fixedly connected by screws on the mounting plate. The reinforcing support plates are made of oxygen-free copper, which has the second highest heat dissipation capacity among metals after silver, with extremely high heat dissipation efficiency and high strength.

[0012] Preferably, the inner wall of the semi-circular protective shell is slidably connected to the outer walls of the aluminum foil tube, the narrowed aluminum foil sleeve, and the flared aluminum foil sleeve. The outer wall of the baffle is in contact with the outer wall of the cylinder, and the baffle is fixedly connected to the semi-circular protective shell by a nut on the threaded rod. The outer wall of the baffle is in contact with the outer wall of the cylinder, which restricts the axial movement of the cylinder when the shock absorber is working and ensures the fixation of the aluminum foil layer to the cylinder.

[0013] (III) Beneficial Effects

[0014] This invention provides a zoned heat-insulated shock absorber aluminum cylinder structure. It has the following beneficial effects:

[0015] (i) The cylinder body uses a partitioned heat insulation system consisting of an aluminum foil tube, a narrowed aluminum foil sleeve, and a flared aluminum foil sleeve. In the high-risk heat zone in the middle of the cylinder body, an aluminum foil tube made of glass fiber reinforced aluminum foil is used. Its composite structure of double-layer aluminum foil sandwiched with glass fiber can block most of the conductive heat through the glass fiber layer, effectively preventing internal heat from diffusing outward and causing aging of the seals, thus ensuring the long-term stability of the damping performance of the shock absorber. At the same time, the reinforcing properties of glass fiber can resist the high-frequency vibration during the operation of the shock absorber, preventing the aluminum foil layer from tearing and failing, further ensuring the integrity and durability of the heat insulation structure in the high-risk zone. For the low-risk heat zones at both ends of the cylinder body, narrowed and flared aluminum foil sleeves made of single-layer pure aluminum foil are used, which can significantly reduce material costs while meeting basic heat insulation requirements.

[0016] (II) The semi-circular protective shell is symmetrically arranged and wraps around the aluminum foil structure. Its inner wall is slidably connected to the outer wall of the aluminum foil. It can tightly press the aluminum foil layer onto the outer wall of the cylinder through its own curvature, effectively preventing the aluminum foil from shifting due to vibration and ensuring that the heat insulation area corresponds precisely to the heat load area. The reinforcing support plates distributed in a ring array on the outer wall of the semi-circular protective shell can act as "reinforcing ribs" of the protective shell, effectively dispersing impact loads and vibration stresses, and preventing the semi-circular protective shell from denting due to insufficient rigidity, thereby protecting the internal aluminum foil layer and the cylinder from physical damage. At the same time, the reinforcing support plates are made of oxygen-free copper, which not only plays a structural support role but also has a high-efficiency heat dissipation function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the semi-circular protective shell of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the cylindrical body of this utility model.

[0021] In the diagram: 1. Semi-circular protective shell; 2. Mounting plate; 3. Screw; 4. Threaded rod; 5. Baffle; 6. Reinforcing support plate; 7. Cylinder; 8. Aluminum foil tube; 9. Narrowed aluminum foil sleeve; 10. Widened aluminum foil sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a zoned heat-insulating shock absorber aluminum cylinder structure, including: a semi-arc protective shell 1, a cylinder 7 is provided inside the semi-arc protective shell 1, and the semi-arc protective shell 1 is symmetrically arranged outside the cylinder 7; an aluminum foil cylinder 8 is slidably connected to the outer wall of the cylinder 7, a narrowed aluminum foil sleeve 9 is slidably connected to the outer wall of the cylinder 7, and an flared aluminum foil sleeve 10 is slidably connected to the outer wall of the cylinder 7.

[0024] The outer wall of the aluminum foil tube 8 is in contact with the outer wall of the narrowed aluminum foil sleeve 9, and the outer wall of the aluminum foil tube 8 on the side away from the narrowed aluminum foil sleeve 9 is in contact with the outer wall of the flared aluminum foil sleeve 10. The aluminum foil tube 8 is made of glass fiber reinforced aluminum foil material, which has better tensile strength and heat insulation than pure aluminum foil. The narrowed aluminum foil sleeve 9 and the flared aluminum foil sleeve 10 are made of single-layer pure aluminum foil material, which has good heat insulation, low cost, and is easy to cut and fit.

[0025] The outer wall of the semi-circular protective shell 1 is symmetrically fixedly connected with mounting plates 2. The inner wall of the mounting plates 2 is slidably connected with screws 3. The outer walls of the upper and lower ends of the semi-circular protective shell 1 are fixedly connected with threaded rods 4. The outer walls of the threaded rods 4 are slidably connected with baffles 5. The outer wall of the semi-circular protective shell 1 is fixedly connected with reinforcing support plates 6. The reinforcing support plates 6 can serve as "reinforcing ribs" for the protective shell, dispersing impact loads, preventing the semi-circular protective shell 1 from denting due to insufficient rigidity, and protecting the internal aluminum foil layer and cylinder 7.

[0026] The threaded rods 4 are arranged in a ring around the central point of the semi-circular shell 1. The reinforcing support plates 6 are also arranged in a ring around the central point of the semi-circular shell 1. The symmetrically arranged semi-circular shells 1 are fixedly connected by screws 3 on the mounting plate 2. The reinforcing support plates 6 are made of oxygen-free copper, which has the second highest heat dissipation capacity among metals after silver, with extremely high heat dissipation efficiency and high strength.

[0027] The inner wall of the semi-arc protective shell 1 is slidably connected to the outer walls of the aluminum foil tube 8, the narrowed aluminum foil sleeve 9, and the flared aluminum foil sleeve 10. The outer wall of the baffle 5 is in contact with the outer wall of the cylinder 7, and the baffle 5 is fixedly connected to the semi-arc protective shell 1 through the nut on the threaded rod 4. The outer wall of the baffle 5 is in contact with the outer wall of the cylinder 7, which restricts the axial movement of the cylinder 7 when the shock absorber is working, and ensures the fixation of the aluminum foil layer and the cylinder 7.

[0028] When in use, based on the difference in heat load in different areas of the shock absorber aluminum cylinder, the combination of three aluminum foil structures achieves the goal of "strong protection in the core area and low cost in the non-core area" for heat insulation.

[0029] When the shock absorber is working, the damping oil inside the cylinder 7 generates heat due to the reciprocating friction of the piston. This area is a "high-risk hot zone". The aluminum foil cylinder 8 is made of glass fiber reinforced aluminum foil material. Its double-layer aluminum foil sandwiched with glass fiber has two core functions: the glass fiber layer can block most of the conductive heat and prevent the internal frictional heat from spreading outward and causing the seals to age; the reinforcing properties of the glass fiber can resist the high-frequency vibration when the shock absorber is working and ensure the long-term integrity of the heat insulation structure in the high-risk area.

[0030] Both ends of the cylinder 7 need to be connected to the vehicle suspension components. The ambient temperature is close to room temperature and the heat load is low, which belongs to the "low-risk hot zone". The reduced aluminum foil sleeve 9 and the flared aluminum foil sleeve 10 are made of single-layer pure aluminum foil material. The heat insulation property of pure aluminum foil is used to avoid the slight increase in surface temperature of the cylinder 7 from affecting the compatibility of the installation parts. The single-layer pure aluminum foil is easy to cut and fit, and at the same time, it greatly reduces material costs and avoids the waste of resources of "high material underutilization".

[0031] During installation, the flared aluminum foil sleeve 10, aluminum foil tube 8, and narrowed aluminum foil sleeve 9 are sequentially placed on the outside of the cylinder 7. Then, the symmetrically arranged semi-circular protective shell 1 is wrapped around the outside of the aluminum foil tube 8, narrowed aluminum foil sleeve 9, and flared aluminum foil sleeve 10. The inner wall of the semi-circular protective shell 1 is slidably connected to the outer wall of the aluminum foil. It can tightly press the aluminum foil layer onto the outer wall of the cylinder 7 through its own curvature to prevent the aluminum foil from shifting due to vibration and ensure accurate heat insulation position.

[0032] The mounting plates 2 are symmetrically fixed to the outer wall of the semi-arc shell 1. The two symmetrical semi-arc shells 1 are spliced ​​together into a complete "cylindrical shell" by screws 3. The threaded rods 4 at the upper and lower ends of the semi-arc shell 1 pass through the inner wall of the baffle 5. The baffle 5 is fixed to both ends of the shell by nuts. The outer wall of the baffle 5 is in contact with the outer wall of the cylinder 7, which restricts the axial movement of the cylinder 7 when the shock absorber is working and ensures the fixation of the aluminum foil layer to the cylinder 7.

[0033] The reinforcing support plate 6 fixed to the outer wall of the semi-circular shell 1 is made of oxygen-free copper and can be used as a "reinforcing rib" of the shell to disperse impact loads, prevent the semi-circular shell 1 from denting due to insufficient rigidity, and protect the internal aluminum foil layer and the cylinder 7. At the same time, although the heat generated by friction inside the cylinder 7 is blocked by the aluminum foil layer, a small amount of heat will still be conducted to the semi-circular shell 1 through the cylinder 7. At this time, the reinforcing support plate 6 made of oxygen-free copper can quickly conduct the heat on the shell to the outside, forming a "local heat dissipation channel".

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zoned heat-insulated shock absorber aluminum cylinder structure, characterized in that, include: A semi-circular protective shell (1) is provided inside a cylindrical body (7), and the semi-circular protective shell (1) is symmetrically arranged outside the cylindrical body (7); An aluminum foil tube (8) is slidably connected to the outer wall of the cylinder (7), a narrowed aluminum foil sleeve (9) is slidably connected to the outer wall of the cylinder (7), and an flared aluminum foil sleeve (10) is slidably connected to the outer wall of the cylinder (7).

2. The partitioned heat-insulating shock absorber aluminum cylinder structure according to claim 1, characterized in that: The outer wall of the aluminum foil tube (8) is in contact with the outer wall of the narrowed aluminum foil sleeve (9), and the outer wall of the aluminum foil tube (8) on the side away from the narrowed aluminum foil sleeve (9) is in contact with the outer wall of the flared aluminum foil sleeve (10).

3. The partitioned heat-insulating shock absorber aluminum cylinder structure according to claim 1, characterized in that: The outer wall of the semi-circular shell (1) is symmetrically fixedly connected with an installation plate (2), the inner wall of the installation plate (2) is slidably connected with a screw (3), the outer walls of the upper and lower ends of the semi-circular shell (1) are fixedly connected with a threaded rod (4), the outer wall of the threaded rod (4) is slidably connected with a baffle (5), and the outer wall of the semi-circular shell (1) is fixedly connected with a reinforcing support plate (6).

4. The partitioned heat-insulated shock absorber aluminum cylinder structure according to claim 3, characterized in that: The threaded rod (4) is arranged in a ring around the center point of the semi-circular shell (1), and the reinforcing support plate (6) is arranged in a ring around the center point of the semi-circular shell (1). The symmetrically arranged semi-circular shell (1) is fixedly connected by screws (3) on the mounting plate (2).

5. The partitioned heat-insulating shock absorber aluminum cylinder structure according to claim 3, characterized in that: The inner wall of the semi-circular protective shell (1) is slidably connected to the outer walls of the aluminum foil tube (8), the narrowed aluminum foil sleeve (9), and the widened aluminum foil sleeve (10). The outer wall of the baffle (5) is in contact with the outer wall of the cylinder (7), and the baffle (5) is fixedly connected to the semi-circular protective shell (1) through the nut on the threaded rod (4).

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