Nylon guide sleeve with built-in lubrication groove

Abstract

The application relates to the technical field of mechanical transmission component lubrication, and discloses a nylon guide sleeve with built-in lubricating grooves, which comprises a nylon guide sleeve body and a metal guide sleeve. The nylon guide sleeve with built-in lubricating grooves is characterized in that a plurality of long-strip-shaped lubricating oil grooves are arranged in a ring-shaped parallel mode inside the nylon guide sleeve body, and the openings of the lubricating oil grooves are directed to the two ends inside the nylon guide sleeve body. Compared with a traditional external oil injection mode, the lubricating oil can more evenly cover the contact surface when the guide rod moves, the problem of uneven lubrication is avoided, the utilization efficiency of the lubricating oil is remarkably improved, manual maintenance is not required frequently, the stability and reliability of the lubrication effect are ensured, the position-avoiding grooves outside the nylon guide sleeve body are matched with the inner sliding blocks of the metal guide sleeve to be positioned, meanwhile, the buckles pass through the front end of the metal guide sleeve and are clamped, the baffle abuts against the rear end of the metal guide sleeve, through the "sliding block-position-avoiding groove" positioning and the "front clamping-rear blocking" fixing structure, additional positioning parts and complex assembly steps are not required, and the assembly process is reduced.

Description

Technical Field

[0001] This application relates to the field of lubrication technology for mechanical transmission components, specifically a nylon guide sleeve with a built-in lubrication groove. Background Technology

[0002] In the field of mechanical transmission systems, the cooperation between guide sleeves and guide rods is a core component for achieving precise linear motion, and it is widely used in machine tool processing, automated equipment, industrial robotic arms, and other applications. Currently, traditional metal guide sleeve and guide rod connection methods have many drawbacks. Existing technologies often use metal guide sleeves with centralized lubrication systems, periodically injecting lubricating oil through oil holes or nozzles. While this can control lubrication to some extent, the system structure is complex, and lubricating oil leakage and contamination are prone to occur during operation. Moreover, this external oiling method relies excessively on regular manual maintenance, resulting in unstable lubrication effects and poor reliability. Guide sleeves using solid lubrication exhibit significantly insufficient performance under dynamic conditions such as high speed and heavy load. Composite structure guide sleeves are difficult to repair once worn or damaged, leading to poor overall economic efficiency. Therefore, this paper proposes a nylon guide sleeve with a built-in lubrication groove. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides a nylon guide sleeve with built-in lubrication grooves, which features improved lubrication efficiency and stability, enhanced connection stability and durability, optimized dynamic performance and applicability, and reduced risk of contamination.

[0004] To achieve the above objectives, this application provides the following technical solution: a nylon guide sleeve with built-in lubrication grooves, comprising a nylon guide sleeve body and a metal guide sleeve. The nylon guide sleeve body has multiple elongated lubrication grooves inside, and a clearance groove is provided on the outside of the nylon guide sleeve body. A buckle is provided on the front end surface of the nylon guide sleeve body, and a baffle is provided on the rear end surface of the nylon guide sleeve body. A slider that mates with the clearance groove is fixedly connected inside the metal guide sleeve. The nylon guide sleeve body is used to mate with the metal guide sleeve to achieve lubrication connection of the guide rod.

[0005] The above solution, through the inclusion of an internal lubrication groove in the nylon guide sleeve, an external clearance groove, a front-end snap-fit, a rear-end baffle, and a slider inside the metal guide sleeve that mates with the clearance groove, forms a complete mating structure between the nylon guide sleeve and the metal guide sleeve. Compared to existing technologies, this avoids the problems of uneven lubrication, difficult installation and disassembly, and rapid wear when the metal guide sleeve is directly connected to the guide rod. It achieves efficient lubrication connection of the guide rod, while simplifying the overall structure and reducing maintenance difficulty and cost.

[0006] Furthermore, the plurality of the lubricating oil grooves are arranged in a ring and parallel distribution inside the nylon guide sleeve body.

[0007] With the above scheme, multiple lubricating oil grooves are arranged in a ring and parallel inside the nylon guide sleeve body. Compared with the traditional lubricating oil groove setting method, the lubricating oil can more evenly cover the contact surface between the guide rod and the nylon guide sleeve body during the movement of the guide rod, further improving the uniformity of lubricating oil distribution and utilization rate, effectively reducing local wear, and extending the service life of the guide sleeve and guide rod.

[0008] Furthermore, the clearance groove is positioned in conjunction with the slider inside the metal guide sleeve.

[0009] With the above solution, the positioning groove and the inner slider of the metal guide sleeve are positioned together. During the assembly process, the positioning of the nylon guide sleeve body and the metal guide sleeve can be achieved quickly and accurately. There is no need for complicated positioning procedures and additional positioning components, which improves the assembly efficiency, ensures the accuracy and stability of the cooperation between the two, and thus improves the operating accuracy of the entire mechanical transmission system.

[0010] Furthermore, the buckle passes through the front end of the metal guide sleeve and engages, while the baffle abuts against the rear end of the metal guide sleeve to fix the nylon guide sleeve body and the metal guide sleeve.

[0011] With the above solution, the buckle passes through the front end of the metal guide sleeve and engages, while the baffle abuts against the rear end of the metal guide sleeve. This "front buckle and rear baffle" fixing method provides a more stable connection between the nylon guide sleeve body and the metal guide sleeve compared to the traditional connection method. It effectively prevents the nylon guide sleeve body from axially shifting during operation, enhances the reliability of the structure, and ensures the stability of the mechanical transmission system.

[0012] Furthermore, the nylon guide sleeve body is made of nylon material modified with wear-resistant particles and lubricating agents, and has self-lubricating properties.

[0013] Through the above solution, the nylon guide sleeve body is made of nylon material modified with wear-resistant particles and lubricating agents, giving it self-lubricating properties. Compared with traditional metal guide sleeves, the self-lubricating property reduces reliance on external lubrication systems and lowers lubrication maintenance costs. The filling with wear-resistant particles improves the wear resistance of the nylon guide sleeve body, extends its service life, and avoids the problem of easy wear of metal guide sleeves, thus improving the economy and reliability of the entire transmission component.

[0014] Furthermore, the opening of the lubricating oil groove faces both ends of the inside of the nylon guide sleeve body.

[0015] With the above solution, the openings of the lubricating oil groove face the two ends of the inside of the nylon guide sleeve body, so that the lubricating oil can flow out more quickly and smoothly from the openings at both ends and be distributed on the contact surface when the guide rod moves. Compared with the design of opening in a single direction or without a specific opening direction, it further accelerates the distribution speed of the lubricating oil, improves the timeliness and effectiveness of lubrication, and ensures that the guide rod and the nylon guide sleeve body can maintain a good lubrication state under various working conditions.

[0016] Furthermore, the number of the clearance grooves is not less than two, and they are evenly distributed on the outer circumference of the nylon guide sleeve body.

[0017] With the above scheme, the number of clearance grooves is no less than two and they are evenly distributed on the outer circumference of the nylon guide sleeve body. Compared with the single or unevenly distributed clearance groove design, it can provide a more stable and balanced positioning effect for the nylon guide sleeve body and the metal guide sleeve, prevent the nylon guide sleeve from deflecting due to uneven force during operation, ensure the linear accuracy and stability of the guide rod movement, and improve the operating quality of the entire mechanical transmission system.

[0018] Furthermore, the engagement portion of the buckle and the metal guide sleeve is provided with an elastic buffer structure.

[0019] The above solution incorporates an elastic buffer structure at the engagement point between the buckle and the metal guide sleeve. During mechanical transmission, this structure effectively absorbs stress caused by vibration and impact, reduces rigid collisions between the buckle and the metal guide sleeve, lowers wear, and extends the service life of both. Furthermore, the elastic buffer structure further enhances the stability of the connection, improving the smoothness and reliability of the mechanical transmission system.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] 1. This nylon guide sleeve with built-in lubrication grooves features multiple elongated, parallel, annularly distributed lubrication grooves inside the nylon guide sleeve body, with their openings facing both ends of the inner surface. Compared to traditional external lubrication methods, this allows for more even lubrication coverage of the contact surface during guide rod movement, avoiding uneven lubrication and significantly improving lubrication efficiency. Furthermore, it eliminates the need for frequent manual maintenance, ensuring stable and reliable lubrication performance. The clearance groove on the outside of the nylon guide sleeve body cooperates with the slider inside the metal guide sleeve for positioning. Simultaneously, a snap-fit ​​engages after passing through the front end of the metal guide sleeve, and a baffle abuts against the rear end of the metal guide sleeve. This "sliding" mechanism... The "block-avoiding groove" positioning and "front clip and rear stop" fixing structure eliminates the need for additional positioning parts and complex assembly steps, reducing assembly processes and greatly improving installation efficiency. The buckle and baffle work together to firmly fix the nylon guide sleeve body to the metal guide sleeve, effectively preventing axial movement of the nylon guide sleeve body. The nylon guide sleeve body is made of nylon material modified with wear-resistant particles and lubricants, which has self-lubricating properties and good wear resistance. Compared with traditional metal guide sleeves, it can avoid the problem of rapid wear, extend the service life of components, and is easier to replace after damage. It is more economical than irreparable composite structure guide sleeves.

[0022] 2. This nylon guide sleeve with built-in lubrication groove and the matching structure of the clearance groove and the slider make the nylon guide sleeve body suitable for various installation spaces. After assembly, the gap is uniform, ensuring that the guide rod can move smoothly under dynamic conditions such as high speed and heavy load. It overcomes the defects of insufficient dynamic performance of existing solid lubrication guide sleeves and improves the operational reliability of the entire mechanical transmission system. Unlike traditional metal guide sleeves with centralized lubrication systems, which are prone to lubricating oil leakage and pollution, the built-in lubricating oil groove structure of this nylon guide sleeve body can effectively reduce the risk of lubricating oil leakage and make the mechanical transmission system more environmentally friendly. Attached Figure Description

[0023] Figure 1 This is a side-view three-dimensional structural schematic diagram of this application;

[0024] Figure 2 This is a front-view three-dimensional structural diagram of the nylon guide sleeve body of this application;

[0025] Figure 3 This is a rear-view three-dimensional structural schematic diagram of the nylon guide sleeve body of this application;

[0026] Figure 4 This is a three-dimensional enlarged structural schematic diagram of the metal guide sleeve of this application;

[0027] Figure 5 This is a schematic diagram of the internal structure of the metal guide sleeve in this application.

[0028] In the picture:

[0029] 1. Nylon guide sleeve body; 2. Metal guide sleeve; 3. Lubricating oil groove; 4. Alternating groove; 5. Buckle; 6. Baffle; 7. Slider. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a nylon guide sleeve with built-in lubrication grooves includes a nylon guide sleeve body 1 and a metal guide sleeve 2. The nylon guide sleeve body 1 has multiple elongated lubrication grooves 3 inside, and a clearance groove 4 on the outside. A buckle 5 is provided on the front surface of the nylon guide sleeve body 1, and a baffle 6 is provided on the rear surface. A slider 7 that mates with the clearance groove 4 is fixedly connected inside the metal guide sleeve 2. The nylon guide sleeve body 1 mates with the metal guide sleeve 2 to achieve lubrication connection of the guide rod. By setting the lubrication grooves 3 inside the nylon guide sleeve body 1, the clearance groove 4 on the outside, the buckle 5 at the front end, the baffle 6 at the rear end, and the slider 7 that mates with the clearance groove 4 inside the metal guide sleeve 2, a complete mating structure of the nylon guide sleeve and the metal guide sleeve 2 is formed. Compared with the prior art, this avoids the problems of uneven lubrication, difficult installation and disassembly, and rapid wear when the metal guide sleeve 2 is directly connected to the guide rod, achieving efficient lubrication connection of the guide rod, while simplifying the overall structure and reducing maintenance difficulty and cost.

[0032] Please see Figure 1 , Figure 2 and Figure 5Multiple lubricating oil grooves 3 are arranged in a parallel ring inside the nylon guide sleeve body 1. A clearance groove 4 engages with a slider 7 inside the metal guide sleeve 2 for positioning. A buckle 5 passes through the front end of the metal guide sleeve 2 and engages. A baffle 6 abuts against the rear end of the metal guide sleeve 2 to fix the nylon guide sleeve body 1 and the metal guide sleeve 2. The arrangement of multiple lubricating oil grooves 3 in a parallel ring inside the nylon guide sleeve body 1, compared to traditional lubricating oil groove arrangements, allows the lubricating oil to more evenly cover the contact surface between the guide rod and the nylon guide sleeve body 1 during the guide rod's movement, further improving the uniformity and utilization rate of lubricating oil distribution, effectively reducing localized wear, and extending the service life of the guide sleeve and guide rod. The clearance groove 4 engages with a slider 7 inside the metal guide sleeve 2 for positioning. With proper positioning, the nylon guide sleeve body 1 and the metal guide sleeve 2 can be positioned quickly and accurately during assembly, eliminating the need for complex positioning procedures and additional positioning components. This improves assembly efficiency and ensures the accuracy and stability of their fit, thereby enhancing the operational precision of the entire mechanical transmission system. The buckle 5 passes through the front end of the metal guide sleeve 2 and engages, while the baffle 6 abuts against the rear end of the metal guide sleeve 2. This "front buckle and rear baffle" fixing method provides a more stable connection between the nylon guide sleeve body 1 and the metal guide sleeve 2 compared to traditional connection methods. It effectively prevents axial movement of the nylon guide sleeve body 1 during operation, enhances structural reliability, and ensures the stability of the mechanical transmission system.

[0033] Please see Figure 1 , Figure 3 and Figure 4The nylon guide sleeve body 1 is made of nylon material modified with wear-resistant particles and lubricating agents, and has self-lubricating properties. The opening of the lubricating oil groove 3 faces the two inner ends of the nylon guide sleeve body 1. There are no less than two clearance grooves 4, which are evenly distributed on the outer circumference of the nylon guide sleeve body 1. The snap 5 and the metal guide sleeve 2 are provided with an elastic buffer structure. The nylon guide sleeve body 1 is made of nylon material modified with wear-resistant particles and lubricating agents, and has self-lubricating properties. Compared to traditional metal guide sleeves 2, the self-lubricating performance reduces reliance on external lubrication systems and lowers lubrication maintenance costs. The filling of wear-resistant particles improves the wear resistance of the nylon guide sleeve body 1, extending its service life, while avoiding the easy wear problem of metal guide sleeves 2. This improves the economy and reliability of the entire transmission component. The openings of the lubricating oil grooves 3 face the inner ends of the nylon guide sleeve body 1, allowing lubricating oil to flow out more quickly and smoothly from both ends and distribute on the contact surface during guide rod movement. Compared to designs with a single-direction opening or no specific opening direction, this further accelerates the distribution speed of the lubricating oil, improves the timeliness and effectiveness of lubrication, and ensures good lubrication between the guide rod and the nylon guide sleeve body 1 under various working conditions. The number of clearance grooves 4 is no less than [number missing]. Two evenly distributed grooves 4 on the outer circumference of the nylon guide sleeve body 1 provide a more stable and balanced positioning effect for the nylon guide sleeve body 1 and the metal guide sleeve 2 compared to a single or unevenly distributed groove design. This prevents the nylon guide sleeve from tilting due to uneven force during operation, ensuring the linear accuracy and stability of the guide rod movement, and improving the overall operating quality of the mechanical transmission system. The engagement part of the buckle 5 and the metal guide sleeve 2 is equipped with an elastic buffer structure, which can effectively absorb the stress generated by vibration and impact during mechanical transmission, reduce rigid collisions between the buckle 5 and the metal guide sleeve 2, reduce wear, and extend the service life of the buckle 5 and the metal guide sleeve 2. At the same time, the elastic buffer structure can further enhance the stability of the connection and improve the smoothness and reliability of the mechanical transmission system.

[0034] In this embodiment, multiple elongated lubricating oil grooves 3 inside the nylon guide sleeve body 1 are arranged in a ring and parallel, with their openings facing both ends inside the nylon guide sleeve body 1. Compared with the traditional external oil injection method, this allows the lubricating oil to cover the contact surface more evenly when the guide rod moves, avoiding uneven lubrication and significantly improving the utilization efficiency of the lubricating oil. Furthermore, it eliminates the need for frequent manual maintenance, ensuring the stability and reliability of the lubrication effect. The clearance groove 4 on the outside of the nylon guide sleeve body 1 cooperates with the slider 7 inside the metal guide sleeve 2 for positioning. Simultaneously, the buckle 5 passes through the front end of the metal guide sleeve 2 and engages, while the baffle 6 abuts against the rear end of the metal guide sleeve 2. Through this "slider 7- The positioning of the "avoiding groove 4" and the fixing structure of "front clip and rear stop" eliminate the need for additional positioning parts and complex assembly steps, reducing assembly processes and greatly improving installation efficiency. The buckle 5 and the baffle 6 cooperate to firmly fix the nylon guide sleeve body 1 and the metal guide sleeve 2, effectively preventing the nylon guide sleeve body 1 from axially moving. The nylon guide sleeve body 1 is made of nylon material modified with wear-resistant particles and lubricants, which has self-lubricating properties and good wear resistance. Compared with the traditional metal guide sleeve 2, it can avoid the problem of rapid wear, extend the service life of the parts, and is easier to replace after damage. It is more economical than the irreparable composite structure guide sleeve.

[0035] The working principle of the above embodiment is as follows: During assembly, the buckle 5 at the front end of the nylon guide sleeve body 1 is aligned with the corresponding structure at the front end of the metal guide sleeve 2, so that the buckle 5 passes through the front end of the metal guide sleeve 2; at the same time, the clearance groove 4 on the outside of the nylon guide sleeve body 1 is aligned with the slider 7 fixedly connected inside the metal guide sleeve 2, and the nylon guide sleeve body 1 is slowly pushed so that the slider 7 is embedded in the clearance groove 4, thereby achieving the initial positioning of the nylon guide sleeve body 1 and the metal guide sleeve 2 in the radial direction. When the nylon guide sleeve body 1 is pushed to the appropriate position, the buckle 5 engages with the front end of the metal guide sleeve 2. At the same time, the baffle 6 on the rear end surface of the nylon guide sleeve body 1 tightly abuts against the rear end of the metal guide sleeve 2. Through the "front buckle and rear baffle" method, the nylon guide sleeve body 1 and the metal guide sleeve 2 are firmly assembled. The guide rod is inserted into the assembled nylon guide sleeve body 1. The lubricating oil pre-filled in multiple long strip-shaped lubricating oil grooves 3 is distributed in a ring parallel and the opening faces the two ends of the inside of the nylon guide sleeve body 1. When the guide rod and the nylon guide sleeve body 1 move in a relative linear motion, the lubricating oil continuously and evenly overflows from the opening of the lubricating oil groove 3 under the action of pressure and friction generated by the movement. The overflowing lubricating oil quickly distributes on the contact surfaces of the guide rod and the nylon guide sleeve body 1, forming a continuous and uniform lubricating film. This effectively reduces friction between the two, achieving efficient lubrication of the guide rod. During mechanical transmission, the slider 7 inside the metal guide sleeve 2 tightly engages with the clearance groove 4 of the nylon guide sleeve body 1, limiting the radial displacement of the nylon guide sleeve body 1 and ensuring its radial stability during operation. The engagement structure between the front snap 5 and the front end of the metal guide sleeve 2, and the abutment structure between the rear end baffle 6 and the rear end of the metal guide sleeve 2, work together to limit the axial movement of the nylon guide sleeve body 1. Furthermore, the elastic buffer structure at the engagement point of the snap 5 and the metal guide sleeve 2 effectively absorbs vibration and impact during transmission, further enhancing the stability of the connection and ensuring that the nylon guide sleeve body 1 and the metal guide sleeve 2 maintain a stable fit, guaranteeing reliable operation of the entire mechanical transmission system.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 the element.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nylon bush with built-in lubrication groove, comprising a nylon bush body (1) and a metal bush (2), characterized in that: The nylon guide sleeve body (1) has multiple elongated lubricating oil grooves (3) inside, and a clearance groove (4) is provided on the outside of the nylon guide sleeve body (1). A buckle (5) is provided on the front end surface of the nylon guide sleeve body (1), and a baffle (6) is provided on the rear end surface of the nylon guide sleeve body (1). A slider (7) that cooperates with the clearance groove (4) is fixedly connected inside the metal guide sleeve (2). The nylon guide sleeve body (1) is used to cooperate with the metal guide sleeve (2) to realize the lubrication connection of the guide rod.

2. A nylon bushing with built-in lubrication groove as claimed in claim 1 wherein: Multiple lubricating oil grooves (3) are arranged in a ring parallel inside the nylon guide sleeve body (1).

3. A nylon bushing with built-in lubrication groove as claimed in claim 1 wherein: The clearance groove (4) is positioned in conjunction with the slider (7) inside the metal guide sleeve (2).

4. A nylon guide sleeve with a built-in lubrication groove according to claim 1, characterized in that: The buckle (5) passes through the front end of the metal guide sleeve (2) and engages, and the baffle (6) abuts against the rear end of the metal guide sleeve (2) to fix the nylon guide sleeve body (1) and the metal guide sleeve (2).

5. A nylon guide sleeve with a built-in lubrication groove according to claim 1, characterized in that: The nylon guide sleeve body (1) is made of nylon material modified with filler wear-resistant particles and lubricating agents, and has self-lubricating properties.

6. A nylon guide sleeve with a built-in lubrication groove according to claim 1, characterized in that: The opening of the lubricating oil groove (3) faces the two ends inside the nylon guide sleeve body (1).

7. A nylon guide sleeve with a built-in lubrication groove according to claim 1, characterized in that: The number of the clearance grooves (4) is not less than two, and they are evenly distributed on the outer circumference of the nylon guide sleeve body (1).

8. A nylon guide sleeve with a built-in lubrication groove according to claim 1, characterized in that: The engagement part of the buckle (5) and the metal guide sleeve (2) is provided with an elastic buffer structure.

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