Guide sleeve structure with self-lubricating function

Abstract

The guide sleeve structure with the self-lubricating function particularly relates to the technical field of guide sleeves and comprises an upper guide layer, a telescopic layer, a lower guide layer and an inclined layer, the lower end face of the upper guide layer is connected with the telescopic layer, the lower guide layer is arranged on the side, away from the upper guide layer, of the telescopic layer, and the inclined layer is fixed to the lower end face of the lower guide layer. According to the guide sleeve, in the using process, multiple modules are matched with one another to work at the same time, the working efficiency is improved, the telescopic layer is additionally arranged, the guide sleeve can cope with more production environments under the condition that the guide sleeve is not stopped and replaced in the using process, the applicability of the part is enhanced, and the production cost is reduced. The inner walls of the multiple modules are all provided with uniform annular grooves used for storing lubricating grease, the service life of the guide sleeve is prolonged, the design of an inclined sleeve is further used at the lower end, the positioning precision of the guide sleeve in the using process is further improved, and the quality and precision of parts produced by production equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of guide sleeve technology, and more specifically, to a guide sleeve structure with self-lubricating function. Background Technology

[0002] Guide sleeves play a crucial role in mechanical equipment, ensuring that other components maintain accurate orientation and stability during movement. In addition, guide sleeves are also commonly used in CNC machine tools, machining centers, and other machine tool equipment, as well as in high-precision motion systems such as precision measuring instruments and automobile manufacturing, to significantly improve the accuracy and service life of the equipment.

[0003] A search revealed a publication number (CN212469495U) disclosing a self-lubricating guide post and guide sleeve in the field of guide posts and guide sleeves. The guide post includes a guide post, a first sealing ring, and a second sealing ring. A groove is provided on the lower end of the guide post. An upper guide sleeve and a lower guide sleeve are fitted around the outer side of the guide post. The first sealing ring is fixedly connected to the middle of the top of the upper guide sleeve. Oil injection holes are provided on the left and right sides of the upper end of the upper guide sleeve. An oil collection groove is provided inside the upper part of the upper guide sleeve. A first lubrication groove is provided on the upper part of the inner side of the lower guide sleeve, and a second lubrication groove is provided below the first lubrication groove. Several ball bearings are provided inside both the upper and lower guide sleeves. During use, the first sealing ring seals the upper opening of the upper guide sleeve, and the conical soft layer intercepts the lubricating oil adhering to the guide post, collecting it in the oil collection groove. This allows for long-term use without affecting the operation of the guide post. The second sealing ring seals the lower opening of the lower guide sleeve, and the telescopic sleeve scrapes the lubricating oil adhering to the lower part of the guide post into the lower guide sleeve, preventing lubricating oil leakage from the lower guide sleeve opening and causing waste. In the process of realizing this utility model, the inventors discovered the following problems with the prior art:

[0004] The aforementioned guide sleeve has a limited applicable length and cannot be produced in large-area coverage situations, resulting in reduced applicability. Furthermore, the production process has not improved positioning accuracy, leaving room for improvement.

[0005] Therefore, a guide sleeve structure with self-lubricating function is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a guide sleeve structure with self-lubricating function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a guide sleeve structure with self-lubricating function, comprising an upper guide layer, a telescopic layer, a lower guide layer and an inclined layer, wherein the lower end face of the upper guide layer is connected to the telescopic layer, and the lower guide layer is disposed on the side of the telescopic layer away from the upper guide layer, and the lower end face of the lower guide layer is fixed with the inclined layer.

[0008] Preferably, the upper guide layer includes a high-strength alloy steel layer, a copper-based graphite self-lubricating composite layer, a silicon carbide ceramic coating, and a first annular groove. The copper-based graphite self-lubricating composite layer is fixed on the inner side of the high-strength alloy steel layer, and a silicon carbide ceramic coating is provided on the side of the copper-based graphite self-lubricating composite layer away from the high-strength alloy steel layer. The first annular groove is formed on the inner side of the silicon carbide ceramic coating.

[0009] Preferably, the lower guide layer includes a lower guide sleeve and a second annular groove, and the inner wall of the lower guide sleeve is provided with the second annular groove, and both the first annular groove and the second annular groove are spiral structures.

[0010] Preferably, the telescopic layer includes a limiting sleeve, a telescopic cylinder, and a spring, wherein the telescopic cylinder is slidably disposed on the inner side of the limiting sleeve, and the spring is disposed on the outer side of the limiting sleeve.

[0011] Preferably, the inclined layer includes an inclined sleeve and a third annular groove, and the inner wall of the inclined sleeve is provided with a third annular groove, which is an annular groove with a spiral structure having an inclined angle.

[0012] Preferably, the inclined sleeve has an inverted conical structure, and the lower end hole diameter of the inclined sleeve is smaller than the upper end hole diameter of the inclined sleeve.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Compared with the prior art, this self-lubricating guide sleeve structure uses a multi-module design, which allows multiple modules to work together simultaneously during use, thus speeding up work efficiency. In addition, the addition of a telescopic layer allows the guide sleeve to cope with more production environments without stopping the machine or replacing it, enhancing the applicability of the part. Furthermore, the inner walls of each module are provided with uniform annular grooves for storing grease, increasing the service life of the guide sleeve.

[0015] 2. Compared with the existing technology, this self-lubricating guide sleeve structure also uses an inclined sleeve design at the lower end, which further improves the positioning accuracy of the guide sleeve during use, improves the quality and accuracy of the parts produced by the production equipment, significantly reduces the defect rate of the production equipment during production, and reduces the waste of production resources. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the upper guide layer of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the telescopic layer of this utility model.

[0019] Figure 4 This is a schematic diagram of the inclined layer of this utility model.

[0020] Figure 5 This is a cross-sectional structural diagram of the lower guide layer of this utility model.

[0021] The attached figures are labeled as follows: 1. Upper guide layer; 11. High-strength alloy steel layer; 12. Copper-based graphite self-lubricating composite layer; 13. Silicon carbide ceramic coating; 14. First annular groove; 2. Telescopic layer; 21. Limiting sleeve; 22. Telescopic cylinder; 23. Spring; 3. Lower guide layer; 31. Lower guide sleeve; 32. Second annular groove; 4. Inclined layer; 41. Inclined sleeve; 42. Third annular groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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] Example 1

[0024] As attached Figures 1 to 5 The guide sleeve structure shown includes an upper guide layer 1, a telescopic layer 2, a lower guide layer 3 and an inclined layer 4. The lower end face of the upper guide layer 1 is connected to the telescopic layer 2, and the lower guide layer 3 is provided on the side of the telescopic layer 2 away from the upper guide layer 1. The lower end face of the lower guide layer 3 is fixed with the inclined layer 4.

[0025] Among them, the upper guide layer 1 and the lower guide layer 3 are the core components. The arc-shaped grooves opened on the inner walls of the upper guide layer 1 and the lower guide layer 3 make the guide sleeve have a longer service life. The telescopic layer 2 makes the guide sleeve have a wider range of applications. The inclined layer 4 makes the guide sleeve have more precise positioning.

[0026] Example 2

[0027] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details:

[0028] In a preferred embodiment, the upper guide layer 1 includes a high-strength alloy steel layer 11, a copper-based graphite self-lubricating composite layer 12, a silicon carbide ceramic coating 13, and a first annular groove 14. The copper-based graphite self-lubricating composite layer 12 is fixed to the inner side of the high-strength alloy steel layer 11, and the silicon carbide ceramic coating 13 is disposed on the side of the copper-based graphite self-lubricating composite layer 12 away from the high-strength alloy steel layer 11. The first annular groove 14 is formed on the inner side of the silicon carbide ceramic coating 13. The high-strength alloy steel layer 11 is a steel material that has undergone special alloying and heat treatment processes, and has excellent mechanical properties and comprehensive characteristics, possessing high strength and high hardness, excellent wear resistance, good toughness, and excellent fatigue performance. The copper-based graphite self-lubricating composite layer 12 has excellent self-lubricating properties, good wear resistance, high thermal conductivity, good anti-galling properties, and has the function of shock absorption and noise reduction. The silicon carbide ceramic coating 13 has extremely high hardness, excellent wear resistance, good high temperature resistance, low coefficient of friction, and good fatigue resistance.

[0029] In a preferred embodiment, the lower guide layer 3 includes a lower guide sleeve 31 and a second annular groove 32, and the inner wall of the lower guide sleeve 31 is provided with the second annular groove 32, and both the first annular groove 14 and the second annular groove 32 are spiral structures.

[0030] In a preferred embodiment, the telescopic layer 2 includes a limiting sleeve 21, a telescopic cylinder 22, and a spring 23, wherein the telescopic cylinder 22 is slidably disposed on the inner side of the limiting sleeve 21, and the spring 23 is disposed on the outer side of the limiting sleeve 21.

[0031] In a preferred embodiment, the inclined layer 4 includes an inclined sleeve 41 and a third annular groove 42, and the inner wall of the inclined sleeve 41 is provided with a third annular groove 42, which is an annular groove with a spiral structure having an inclined angle.

[0032] In a preferred embodiment, the inclined sleeve 41 has an inverted conical structure, and the lower end hole diameter of the inclined sleeve 41 is smaller than the upper end hole diameter of the inclined sleeve 41.

[0033] The working process of this utility model is as follows: The guide sleeve adopts a high-strength alloy steel layer 11, a copper-based graphite self-lubricating composite layer 12, and a silicon carbide ceramic coating 13. The high-strength alloy steel layer 11 is a steel that has undergone special alloying and heat treatment processes, possessing excellent mechanical properties and comprehensive characteristics, including high strength and high hardness, excellent wear resistance, good toughness, and excellent fatigue performance. The copper-based graphite self-lubricating composite layer 12 has excellent self-lubricating properties, good wear resistance, high thermal conductivity, good anti-galling properties, and also has the function of shock absorption and noise reduction. The silicon carbide ceramic coating 13 has extremely high hardness, excellent wear resistance, good high temperature resistance, low coefficient of friction, and good fatigue resistance, making the guide sleeve have extremely excellent quality. In terms of performance, the guide sleeve features a chamfered design on both the upper and lower ends, making installation easier and faster. During use, the first annular groove 14 in the upper guide layer 1, the second annular groove 32 in the lower guide layer 3, and the third annular groove 42 in the inclined layer 4 can all store grease, increasing the retention time of the grease on the guide sleeve and reducing the number of times the guide sleeve needs to be greased. Furthermore, the design of the telescopic layer 2 allows the guide sleeve to adapt to more usage environments and perform greater telescopic positioning, increasing the applicability of the guide sleeve. The use of the inclined sleeve 41 in the inclined layer 4 enables the guide sleeve to help production equipment perform more precise positioning, resulting in higher quality parts, reduced material waste, and lower production costs.

[0034] Because a convex ring is designed at the upper edge of the telescopic cylinder 22, the guide sleeve will not cause the limiting sleeve 21 and the telescopic cylinder 22 to fall off during use due to vertical extension and contraction. Furthermore, the convex ring fits perfectly into the internal groove of the limiting sleeve 21, so the limiting sleeve 21 and the telescopic cylinder 22 will not tilt during use. The above is the working principle of this self-lubricating guide sleeve structure.

Claims

1. A guide sleeve structure with self-lubricating function, comprising an upper guide layer (1), a telescopic layer (2), a lower guide layer (3), and an inclined layer (4), characterized in that: The lower end face of the upper guide layer (1) is connected to the expansion layer (2), and the expansion layer (2) is provided with a lower guide layer (3) on the side away from the upper guide layer (1), and the lower end face of the lower guide layer (3) is fixed with an inclined layer (4).

2. The guide sleeve structure with self-lubricating function according to claim 1, characterized in that: The upper guide layer (1) includes a high-strength alloy steel layer (11), a copper-based graphite self-lubricating composite layer (12), a silicon carbide ceramic coating (13), and a first annular groove (14). The copper-based graphite self-lubricating composite layer (12) is fixed on the inner side of the high-strength alloy steel layer (11). The side of the copper-based graphite self-lubricating composite layer (12) away from the high-strength alloy steel layer (11) is provided with a silicon carbide ceramic coating (13). The first annular groove (14) is opened on the inner side of the silicon carbide ceramic coating (13).

3. The guide sleeve structure with self-lubricating function according to claim 2, characterized in that: The lower guide layer (3) includes a lower guide sleeve (31) and a second annular groove (32), and the inner wall of the lower guide sleeve (31) is provided with the second annular groove (32), and the first annular groove (14) and the second annular groove (32) are both spiral structures.

4. The guide sleeve structure with self-lubricating function according to claim 1, characterized in that: The telescopic layer (2) includes a limiting sleeve (21), a telescopic sleeve (22) and a spring (23), and the telescopic sleeve (22) is slidably provided on the inner side of the limiting sleeve (21), and the spring (23) is provided on the outer side of the limiting sleeve (21).

5. A guide sleeve structure with self-lubricating function according to claim 1, characterized in that: The inclined layer (4) includes an inclined sleeve (41) and a third annular groove (42), and the inner wall of the inclined sleeve (41) is provided with a third annular groove (42), which is an annular groove with a spiral structure having an inclined angle.

6. A guide sleeve structure with self-lubricating function according to claim 5, characterized in that: The inclined sleeve (41) has an inverted conical structure, and the lower end hole diameter of the inclined sleeve (41) is smaller than the upper end hole diameter of the inclined sleeve (41).

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