Anti-collision cover for split type shock absorber and manufacturing method of anti-collision cover

Abstract

The invention discloses a shock absorber technology and aims to provide an anti-collision cover for a split type shock absorber and a manufacturing method of the anti-collision cover, the anti-collision cover is characterized by comprising a fixed part and a movable part, the fixed part comprises a flange part and a barrel part which are integrally formed, the flange part is connected with a shock absorber body in a close fit mode, and the barrel part is connected with the fixed part in a close fit mode. The movable part can freely slide along the cylinder body of the shock absorber through a sliding structure and the cylinder body part of the fixed part; the anti-collision cover for the split type shock absorber has remarkable structural flexibility, the fixed part is connected with the shock absorber body in a close fit mode, the stability, the protection performance and the dustproof characteristic of the anti-collision cover are ensured, the movable part is connected with the fixed part through the sliding structure, free sliding along a shock absorber barrel can be achieved, and the anti-collision cover is convenient to use. By means of the design, the anti-collision cover has high adaptability in the using process and can be effectively adjusted according to changes of the working state of the vibrator. The damper is suitable for the technical field of dampers.

Description

Technical Field

[0001] The present invention relates to a shock absorber technology, and more specifically, to an anti-collision cover for a split shock absorber and a manufacturing method thereof. Background Art

[0002] The shock absorber anti-collision cover is a device installed on the shock absorber body to protect the oil seal, provide dust cover limitation, and provide impact protection; the current common product structure is generally obtained by an integrated injection molding process or a metal stamping and welding process, but both have the disadvantage of being unable to adjust the length; and for some cases with special structural dimensions, it cannot be used, and the function of fixing the dust cover can only be abandoned; this type of product has an optimization, see CN204852148U, which can achieve a longer injection molding problem, but it still seems powerless when the size needs to be provided during stretching. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide an anti-collision cover for a split shock absorber and a manufacturing method thereof.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an anti-collision cover for a split shock absorber, comprising a fixed part and a movable part, the fixed part comprising an integrally formed flange part and a cylindrical part, the flange part is connected to the shock absorber body by a tight fit, and the movable part can slide freely along the shock absorber cylinder through a sliding structure and the cylindrical part of the fixed part.

[0005] The present invention is further configured as follows: the movable part is manufactured by a non-metallic injection molding process, and the height of the injection molded part is greater than or equal to two-thirds of the inner diameter, thereby ensuring the sliding performance of the movable part and the matching accuracy with the barrel portion of the fixed part.

[0006] The present invention is further configured such that: the fixed part and the movable part are connected in a split manner, using a sliding plug-in structure.

[0007] The present invention is further configured such that: the connection mode between the fixed part and the movable part is a sliding fit, and the inner hole diameter of the movable part is greater than or equal to the diameter of the cylindrical part of the fixed part, so as to ensure that the movable part can slide smoothly and fit tightly with the cylindrical part of the fixed part.

[0008] A method for manufacturing an anti-collision cover for a split shock absorber, characterized in that it comprises the following steps:

[0009] S1. Material selection:

[0010] First, it is necessary to select suitable materials for the manufacture of the anti-collision cover. The fixed part is usually made of metal materials, including but not limited to steel and aluminum alloy, while the movable part can be made of non-metallic injection molding materials, including but not limited to PA66 and POM. The material should have good corrosion resistance, wear resistance and excellent sliding performance, ensuring that the injection molding material of the movable part will not deform under high temperature, low temperature and vibration environment;

[0011] S2. Manufacturing of the flange and barrel of the fixed part:

[0012] S21, flange forming, the flange of the fixed part is manufactured by stamping or casting, the outer diameter of the flange needs to conform to the inner diameter of the shock absorber body, and ensure that it can be connected with the shock absorber body by a tight fit;

[0013] S22, the cylinder is formed by machining or casting to ensure the matching accuracy of the outer diameter of the cylinder and the inner diameter of the movable part, and to ensure the smoothness of the sliding fit;

[0014] S23, the flange part and the cylinder part are connected by an arc transition to form a fixed part;

[0015] S3. Injection molding of active parts:

[0016] S31. Mold design: According to the structural design of the anti-collision cover, make the corresponding injection mold. The mold design needs to take into account the inner hole diameter, outer dimensions and matching design of the sliding structure of the active part to ensure that the active part can slide smoothly;

[0017] S32, injection molding: heat and melt the selected injection molding material, inject it into the mold, and take it out after cooling and solidification. The height of the movable part is greater than or equal to two-thirds of its inner diameter to ensure its sliding performance and matching accuracy with the fixed part;

[0018] S4. Precision adjustment of sliding fit:

[0019] The diameter of the inner hole of the movable part is controlled by precision machining to ensure that it matches well with the diameter of the barrel of the fixed part and does not get stuck;

[0020] S5. Surface treatment:

[0021] In order to improve the durability of the anti-collision cover, the metal surface of the fixed part can be sprayed, galvanized or anodized to improve its corrosion resistance, and the surface of the movable part can be lubricated to reduce the friction coefficient and improve the sliding performance;

[0022] S6. Design of the connection structure between the fixed part and the movable part:

[0023] According to the design requirements of the anti-collision cover, the fixed part and the movable part are connected by a sliding plug-in structure, and the inner hole diameter of the movable part is greater than or equal to the diameter of the cylindrical part of the fixed part to ensure that no obstruction occurs during the sliding process;

[0024] S61. Sliding plug-in design: The plug-in parts of the fixed part and the movable part need to have a certain gap so that the movable part can slide freely and ensure the matching accuracy during the sliding process;

[0025] S62, Sliding stability control: To ensure the stability of the moving parts, design appropriate locking structures or anti-slip structures to prevent the moving parts from loosening during the operation of the shock absorber;

[0026] S7, Assembly:

[0027] Assemble the fixed part and the movable part: put the movable part on the cylinder of the fixed part and assemble them by sliding fit to ensure good fit and smooth sliding between the two;

[0028] S8. Detect the sliding performance of the active part:

[0029] S81. Sliding performance test: Use a dedicated sliding test device to test the sliding performance of the moving part on the fixed part cylinder. There should be no sticking or excessive wear during the sliding process to ensure that there will be no sliding obstacles during long-term use.

[0030] S82, Wear resistance test: Conduct wear resistance test on moving parts to check their wear after long-term use to ensure that they can withstand long-term mechanical shock and vibration;

[0031] S9, Dimension and fit accuracy inspection:

[0032] S91. Dimension measurement: Use a three-coordinate measuring machine to check whether the dimensions of the fixed and movable parts meet the design requirements;

[0033] S92, fit accuracy test: through installation test, check the fit accuracy of the movable part and the fixed part to ensure that the movable part can slide smoothly and fit closely with the barrel of the fixed part;

[0034] S10, Final Quality Inspection and Packaging:

[0035] S101. Appearance inspection: Check the appearance of the anti-collision cover for defects, cracks, and scratches;

[0036] S102, functional inspection: by simulating the actual working state of the shock absorber, check whether the function of the anti-collision cover is normal, especially the sliding performance of the active part;

[0037] S103. Packaging: Pack with anti-collision covers that have passed quality inspection and use appropriate packaging materials to ensure that they are not damaged during transportation.

[0038] The present invention is further configured as follows: in S6, the inner hole diameter of the movable part is D1, the diameter of the cylindrical part of the fixed part is D2, and D1 = D2 + 0.1 cm to 0.2 cm.

[0039] The beneficial effects of the present invention are:

[0040] 1. Compared with the prior art, the anti-collision cover for the split shock absorber of the present invention has significant structural flexibility. The fixed part is connected to the shock absorber body through a tight fit to ensure the stability, protective performance and dustproof characteristics of the anti-collision cover, while the movable part is connected to the fixed part through a sliding structure, which can achieve free sliding along the shock absorber cylinder. This design makes the anti-collision cover highly adaptable during use and can be effectively adjusted according to changes in the working state of the vibrator. Through the cooperation of the sliding structure, the anti-collision cover can provide a more accurate limit protection function in different working environments, while avoiding damage caused by uneven force. The design of this structure effectively improves the service life and reliability of the anti-collision cover, and provides flexible adjustment space, which can adjust the length as needed, while also saving manufacturing costs.

[0041] 2. The anti-collision cover for the split shock absorber of the present invention further optimizes the sliding performance of the anti-collision cover by selecting a non-metallic injection molding process to manufacture the active part, and uses non-metallic materials such as PA66 and POM. The height of the active part is greater than or equal to two-thirds of the inner diameter. This design ensures that the active part can maintain a high sliding accuracy and sliding range, and has good wear resistance, corrosion resistance and excellent temperature resistance. Compared with traditional metal materials, non-metallic materials show stronger stability in the high temperature, low temperature and vibration environment of the shock absorber, and are not prone to deformation or wear. Therefore, the service life of the anti-collision cover can be extended, and a low friction coefficient can be ensured under complex working conditions. This design enables the shock absorber anti-collision cover to maintain good sliding performance after long-term use, greatly improving the durability and working stability of the product.

[0042] 3. In the present invention, a split connection method is adopted, and a sliding plug structure is used to connect the fixed part and the movable part. Compared with the traditional integrated structure, this design has better assembly and adjustment flexibility. The sliding plug structure allows the movable part to slide smoothly on the fixed part, reducing the local pressure concentration caused by vibration or impact, and effectively reducing wear. In addition, the split design allows users to more conveniently disassemble and replace the anti-collision cover when replacement or maintenance is required, without the need for large-scale disassembly of the overall structure. This simple maintenance method greatly improves the maintenance efficiency and economy of the shock absorber, and reduces the potential risks caused by replacement difficulties.

[0043] 4. The present invention has a simple and reasonable structure, a manufacturing method, and is easy to operate, avoiding the defects of the prior art and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural diagram of the anti-collision cover for the split shock absorber of the present invention.

[0045] Reference numerals in the figure: 1, fixed part; 2, movable part; 3, flange part; 4, cylinder part. DETAILED DESCRIPTION

[0046] Reference Figure 1 The anti-collision cover for the split shock absorber and the manufacturing method thereof are further described in an embodiment of the present invention.

[0047] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0048] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0049] Figure 1The split shock absorber anti-collision cover shown in the figure comprises a fixed part 1 and a movable part 2, wherein the fixed part 1 comprises an integrally formed flange part 3 and a cylinder part 4, wherein the flange part 3 is connected to the shock absorber body by a tight fit, and the movable part 2 can slide freely with the cylinder part 4 of the fixed part 1 along the shock absorber cylinder through a sliding structure;

[0050] Compared with the prior art, the anti-collision cover for the split shock absorber of the present invention has significant structural flexibility. The fixed part 1 is connected to the shock absorber body through a tight fit to ensure the stability, protective performance and dustproof characteristics of the anti-collision cover, while the movable part 2 is connected to the fixed part 1 through a sliding structure, which can achieve free sliding along the shock absorber cylinder. This design makes the anti-collision cover highly adaptable during use and can be effectively adjusted according to changes in the working state of the vibrator. Through the cooperation of the sliding structure, the anti-collision cover can provide a more accurate limit protection function in different working environments, while avoiding damage caused by uneven force. The design of this structure effectively improves the service life and reliability of the anti-collision cover, and provides flexible adjustment space, which can adjust the length as needed, while also saving manufacturing costs.

[0051] The movable part 2 is manufactured by non-metallic injection molding process, and the height of the injection molded part is greater than or equal to two-thirds of the inner diameter, ensuring the sliding performance of the movable part 2 and the matching accuracy with the barrel part 4 of the fixed part 1;

[0052] The anti-collision cover for the split shock absorber of the present invention selects a non-metallic injection molding process to manufacture the active part 2, further optimizing the sliding performance of the anti-collision cover, and uses non-metallic materials such as PA66 and POM. The height of the active part 2 is greater than or equal to two-thirds of the inner diameter. This design ensures that the active part 2 can maintain a high sliding accuracy and sliding range, and has good wear resistance, corrosion resistance and excellent temperature resistance. Compared with traditional metal materials, non-metallic materials show stronger stability in the high temperature, low temperature and vibration environment of the shock absorber, and are not prone to deformation or wear. Therefore, the service life of the anti-collision cover can be extended, and a low friction coefficient can be ensured under complex working conditions. This design enables the shock absorber anti-collision cover to maintain good sliding performance after long-term use, greatly improving the durability and working stability of the product.

[0053] The fixed part 1 and the movable part 2 are connected in a split manner, using a sliding plug-in structure;

[0054] In the present invention, a split connection method is adopted, and a sliding plug structure is used to connect the fixed part 1 and the movable part 2. Compared with the traditional integrated structure, this design has better assembly and adjustment flexibility. The sliding plug structure enables the movable part 2 to slide smoothly on the fixed part 1, reducing the local pressure concentration caused by vibration or impact, and effectively reducing wear. In addition, the split design allows users to more conveniently disassemble and replace the anti-collision cover when replacement or maintenance is required, without the need for large-scale disassembly of the overall structure. This simple maintenance method greatly improves the maintenance efficiency and economy of the shock absorber, and reduces the potential risks caused by replacement difficulties.

[0055] The connection mode of the fixed part 1 and the movable part 2 is sliding fit, and the inner hole diameter of the movable part 2 is greater than or equal to the diameter of the barrel part 4 of the fixed part 1, so as to ensure that the movable part 2 can slide smoothly and fit tightly with the barrel part 4 of the fixed part 1;

[0056] By ensuring that the inner hole diameter of the movable part 2 is greater than or equal to the diameter of the cylindrical portion 4 of the fixed part 1, the smoothness of the sliding fit is further improved. This design ensures that the movable part 2 can slide freely on the cylindrical portion 4 of the fixed part 1 without being affected by the sticking phenomenon, thereby ensuring the long-term use performance of the anti-collision cover. Under long-term vibration or temperature changes, the sliding fit will not cause loss due to inappropriate clearance or excessive friction, thereby extending the service life of the anti-collision cover and improving its stability in various complex environments. In addition, the close fit between the movable part 2 and the fixed part 1 can also effectively prevent external dust, impurities, etc. from interfering with the working parts of the shock absorber, thereby improving the protection performance.

[0057] A method for manufacturing an anti-collision cover for a split shock absorber, characterized in that it comprises the following steps:

[0058] S1. Material selection:

[0059] First, it is necessary to select suitable materials for manufacturing the anti-collision cover. The fixed part 1 is usually made of metal materials, including but not limited to steel and aluminum alloy, while the movable part 2 can be made of non-metallic injection molding materials, including but not limited to PA66 and POM. The material should have good corrosion resistance, wear resistance and excellent sliding performance, ensuring that the injection molding material of the movable part 2 will not deform under high temperature, low temperature and vibration environment;

[0060] S2. Manufacturing of the flange portion 3 and the barrel portion 4 of the fixed portion 1:

[0061] S21, forming the flange part 3, manufacturing the flange part 3 of the fixing part 1 by stamping or casting, the outer diameter of the flange part 3 needs to conform to the inner diameter of the shock absorber body, and ensure that it can be connected with the shock absorber body by a tight fit;

[0062] S22, the barrel portion 4 is formed, and the barrel portion 4 is machined or cast to ensure the matching accuracy of the outer diameter of the barrel portion 4 and the inner diameter of the movable portion 2, thereby ensuring the smoothness of the sliding fit;

[0063] S23, the flange part 3 and the barrel part 4 are connected by a circular arc transition to form the fixed part 1;

[0064] S3, injection molding of active part 2:

[0065] S31. Mold design: According to the structural design of the anti-collision cover, a corresponding injection mold is manufactured. The mold design needs to take into account the inner hole diameter, the outer dimensions and the matching design of the sliding structure of the movable part 2 to ensure that the movable part 2 can slide smoothly;

[0066] S32, injection molding: heat and melt the selected injection molding material, inject it into the mold, and take it out after cooling and solidification. The height of the movable part 2 is greater than or equal to two-thirds of its inner diameter to ensure its sliding performance and matching accuracy with the fixed part 1;

[0067] S4. Precision adjustment of sliding fit:

[0068] The diameter of the inner hole of the movable part 2 is controlled by precision machining to ensure that it matches well with the diameter of the barrel part 4 of the fixed part 1 and does not get stuck;

[0069] S5. Surface treatment:

[0070] In order to improve the durability of the anti-collision cover, the metal surface of the fixed part 1 can be sprayed, galvanized or anodized to improve its corrosion resistance, and the surface of the movable part 2 can be lubricated to reduce the friction coefficient and improve the sliding performance;

[0071] S6. Design of the connection structure between the fixed part 1 and the movable part 2:

[0072] According to the design requirements of the anti-collision cover, the fixed part 1 and the movable part 2 are connected by a sliding plug-in structure, and the inner hole diameter of the movable part 2 is greater than or equal to the diameter of the cylindrical part 4 of the fixed part 1 to ensure that no obstruction occurs during the sliding process;

[0073] S61, sliding plug-in design: the plug-in part of the fixed part 1 and the movable part 2 needs to have a certain gap so that the movable part 2 can slide freely and ensure the matching accuracy during the sliding process;

[0074] S62, sliding stability control: To ensure the stability of the active part 2, an appropriate locking structure or anti-slip structure is designed to prevent the active part 2 from loosening during the operation of the shock absorber;

[0075] S7, Assembly:

[0076] Assemble the fixed part 1 and the movable part 2: put the movable part 2 on the barrel part 4 of the fixed part 1, and assemble them by sliding fit to ensure good fit and smooth sliding between the two;

[0077] S8. Detect the sliding performance of the movable part 2:

[0078] S81. Sliding performance test: Use a dedicated sliding test device to test the sliding performance of the movable part 2 on the cylindrical part 4 of the fixed part 1. There should be no sticking or excessive wear during the sliding process to ensure that there will be no sliding obstacles during long-term use.

[0079] S82, wear resistance test: perform a wear resistance test on the active part 2 to check its wear after long-term use to ensure that it can withstand long-term mechanical shock and vibration;

[0080] S9, Dimension and fit accuracy inspection:

[0081] S91, Dimension measurement: Use a three-coordinate measuring machine to check whether the dimensions of the fixed part 1 and the movable part 2 meet the design requirements;

[0082] S92, fit accuracy detection: through the installation test, check the fit accuracy of the movable part 2 and the fixed part 1 to ensure that the movable part 2 can slide smoothly and fit tightly with the barrel part 4 of the fixed part 1;

[0083] S10, Final Quality Inspection and Packaging:

[0084] S101. Appearance inspection: Check the appearance of the anti-collision cover for defects, cracks, and scratches;

[0085] S102, functional inspection: by simulating the actual working state of the shock absorber, check whether the function of the anti-collision cover is normal, especially the sliding performance of the movable part 2;

[0086] S103, Packaging: Packing is done with anti-collision covers that have passed quality inspection and appropriate packaging materials to ensure that it is not damaged during transportation;

[0087] Through detailed step-by-step descriptions, from material selection, manufacturing of the fixed part 1 and the movable part 2, surface treatment, to final assembly and testing, it is ensured that the various performances of the anti-collision cover meet the design requirements. In the manufacturing process, attention is paid to the selection of suitable materials, such as PA66, POM and other injection molding materials with strong corrosion resistance and wear resistance. At the same time, the metal part is also treated with anti-corrosion to ensure that it is not easy to rust or damage during long-term use. In addition, through precision machining and matching accuracy testing, the sliding performance and stability of the fixed part 1 and the movable part 2 are guaranteed, thereby avoiding jamming, wear or deformation problems caused by improper matching. This systematic manufacturing process not only improves the functionality of the anti-collision cover, but also ensures its long-term and reliable use effect.

[0088] In S6, the inner diameter of the movable part 2 is D1, the diameter of the cylindrical part 4 of the fixed part 1 is D2, and D1 = D2 + 0.1 cm to 0.2 cm;

[0089] By clarifying the matching tolerance range between the inner hole diameter of the movable part 2 and the diameter of the cylindrical portion 4 of the fixed part 1, it is ensured that the movable part 2 can slide smoothly on the fixed part 1, and at the same time, improper matching caused by excessively large or small gaps is avoided. Through this precise tolerance control, the sliding performance and matching accuracy of the anti-collision cover can be effectively improved, and failures or performance degradation caused by excessively large or small sliding resistance can be avoided. At the same time, this design can ensure that the matching accuracy of the movable part 2 and the fixed part 1 remains stable during long-term use, thereby improving the durability and reliability of the anti-collision cover. In addition, appropriate gaps can also avoid matching failure problems caused by thermal expansion and contraction, thereby ensuring that the anti-collision cover can still maintain efficient protection functions in complex working environments.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A split shock absorber anti-collision cover, characterized in that: The invention comprises a fixed part (1) and a movable part (2), wherein the fixed part (1) comprises an integrally formed flange part (3) and a barrel part (4), wherein the flange part (3) is connected to the shock absorber body by a tight fit, and the movable part (2) can slide freely along the shock absorber barrel part (4) via a sliding structure with the barrel part (4) of the fixed part (1).

2. The anti-collision cover for a split shock absorber according to claim 1, characterized in that: The movable part (2) is manufactured using a non-metallic injection molding process, and the height of the injection molded part is greater than or equal to two-thirds of the inner diameter, thereby ensuring the sliding performance of the movable part (2) and the matching accuracy with the barrel part (4) of the fixed part (1).

3. The anti-collision cover for a split shock absorber according to claim 1, characterized in that: The fixed part (1) and the movable part (2) are connected in a split manner, using a sliding plug-in structure.

4. The anti-collision cover for a split shock absorber according to claim 1, characterized in that: The connection mode between the fixed part (1) and the movable part (2) is a sliding fit, and the inner hole diameter of the movable part (2) is greater than or equal to the diameter of the cylindrical part (4) of the fixed part (1), so as to ensure that the movable part (2) can slide smoothly and fit tightly with the cylindrical part (4) of the fixed part (1).

5. A method for manufacturing an anti-collision cover for a split shock absorber according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Material selection: First, it is necessary to select suitable materials for manufacturing the anti-collision cover. The fixed part (1) is usually made of metal materials, including but not limited to steel and aluminum alloy, while the movable part (2) can be made of non-metallic injection molding materials, including but not limited to PA66 and POM. The material should have good corrosion resistance, wear resistance and excellent sliding performance, and ensure that the injection molding material of the movable part (2) will not deform under high temperature, low temperature and vibration environment; S2. Manufacturing of the flange part (3) and the barrel part (4) of the fixed part (1): S21, forming the flange part (3), manufacturing the flange part (3) of the fixing part (1) by stamping or casting, wherein the outer diameter of the flange part (3) needs to conform to the inner diameter of the shock absorber body and ensure that the flange part (3) can be connected with the shock absorber body by a tight fit; S22, the barrel portion (4) is formed, and the barrel portion (4) is machined or cast to ensure the matching accuracy between the outer diameter of the barrel portion (4) and the inner diameter of the movable portion (2), thereby ensuring the smoothness of the sliding fit; S23, the flange portion (3) and the barrel portion (4) are connected by a circular arc transition to form a fixed portion (1); S3. Injection molding of the active part (2): S31. Mold design: According to the structural design of the anti-collision cover, a corresponding injection mold is manufactured. The mold design needs to take into account the inner hole diameter, the outer dimensions and the matching design of the sliding structure of the movable part (2) to ensure that the movable part (2) can slide smoothly; S32, injection molding: heating and melting the selected injection molding material, injecting it into the mold, and taking it out after cooling and solidification. The height of the movable part (2) is greater than or equal to two-thirds of its inner diameter to ensure its sliding performance and matching accuracy with the fixed part (1); S4. Precision adjustment of sliding fit: The diameter of the inner hole of the movable part (2) is controlled by precision machining to ensure that it matches the diameter of the cylindrical part (4) of the fixed part (1) well and does not cause jamming; S5. Surface treatment: In order to improve the durability of the anti-collision cover, the metal surface of the fixed part (1) can be sprayed, galvanized or anodized to improve its corrosion resistance, and the surface of the movable part (2) can be lubricated to reduce the friction coefficient and improve the sliding performance; S6. Design of the connection structure between the fixed part (1) and the movable part (2): According to the design requirements of the anti-collision cover, the fixed part (1) and the movable part (2) are connected by a sliding plug-in structure, and the inner hole diameter of the movable part (2) is greater than or equal to the diameter of the cylindrical part (4) of the fixed part (1), so as to ensure that no obstruction occurs during the sliding process; S61. Sliding plug-in design: The plug-in part of the fixed part (1) and the movable part (2) needs to have a certain gap so that the movable part (2) can slide freely and ensure the matching accuracy during the sliding process; S62, sliding stability control: in order to ensure the stability of the movable part (2), an appropriate locking structure or anti-slip structure is designed to prevent the movable part (2) from loosening during the operation of the shock absorber; S7, Assembly: Assembling the fixed part (1) and the movable part (2): the movable part (2) is placed on the cylindrical part (4) of the fixed part (1) and assembled by sliding fit, ensuring that the two fit well and slide smoothly; S8. Detect the sliding performance of the movable part (2): S81. Sliding performance test: The sliding performance of the movable part (2) on the cylindrical part (4) of the fixed part (1) is tested by using a dedicated sliding test device. There should be no sticking or excessive wear during the sliding process, ensuring that there will be no sliding obstacles during long-term use. S82, wear resistance test: Perform a wear resistance test on the active part (2) to check its wear after long-term use to ensure that it can withstand long-term mechanical shock and vibration; S9, Dimension and fit accuracy inspection: S91. Dimension measurement: Use a three-coordinate measuring machine to check whether the dimensions of the fixed part (1) and the movable part (2) meet the design requirements; S92, fit accuracy test: through the installation test, check the fit accuracy of the movable part (2) and the fixed part (1), to ensure that the movable part (2) can slide smoothly and fit tightly with the cylinder part (4) of the fixed part (1); S10, Final Quality Inspection and Packaging: S101. Appearance inspection: Check the appearance of the anti-collision cover for defects, cracks, and scratches; S102, functional inspection: by simulating the actual working state of the shock absorber, check whether the function of the anti-collision cover is normal, especially the sliding performance of the movable part (2); S103. Packaging: Pack with anti-collision covers that have passed quality inspection and use appropriate packaging materials to ensure that they are not damaged during transportation.

6. The method for manufacturing the anti-collision cover for a split type shock absorber according to claim 5, characterized in that: In S6, the inner hole diameter of the movable part (2) is D1, the diameter of the cylindrical part (4) of the fixed part (1) is D2, and D1 = D2 + 0.1 cm to 0.2 cm.

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