Plastic oil-based self-lubricating chain
By using plastic oil in the chain to form microporous oil-containing media, self-lubricating is achieved using surface tension and capillary effect, the problem of wear and pollution of traditional chains in dust and humid environments is solved, and stable lubrication and environmentally friendly self-lubricating effect is achieved. .
Patent Information
- Application Number
- CN202420998100.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-10
AI Technical Summary
Traditional chains are prone to wear, noisy, and strong vibration in dust and humid environments, and conventional lubricating oil is prone to loss or contamination, increasing maintenance costs and environmental pollution risks.
Using a self-lubricating chain based on plastic oil, a microporous oil-containing medium is formed by mixing the polymer matrix material with the lubricating oil and heating and curing it. The lubricating film is automatically formed when the chain is running using surface tension and capillary effects, reducing friction and when it is stopped. Store lubricant to avoid frequent refueling and maintenance.
It achieves long-term stable lubrication in dust and humid environments, reduces chain wear and noise, reduces maintenance costs, and is pollution-free, and meets environmental protection requirements.
Smart Images
Figure CN222351312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical transmission and lubrication, in particular to a self-lubricating chain based on plastic oil, which is particularly suitable for dusty and humid environments. Background Art
[0002] During long-term, high-intensity operation of the chain, due to the intense friction and impact between the sprocket and the chain links, it is easy to cause serious wear, loud noise, strong vibration and other problems, affecting the service life of the chain and the operating efficiency of the equipment. Regular lubrication is required during use to reduce wear and extend the service life. However, in dusty or humid environments, conventional lubricants are easily lost or contaminated, resulting in reduced lubrication effect and increased maintenance costs. In addition, traditional lubricants may pollute the environment. Therefore, it is particularly important to develop a pollution-free, maintenance-free self-lubricating chain in these applications. Utility Model Content
[0003] In view of the shortcomings of the prior art, the utility model provides a self-lubricating chain based on plastic oil, which can maintain stable lubrication performance for a long time under dust, mud and humid environment conditions, does not require frequent maintenance, and achieves pollution-free operation.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A self-lubricating chain based on plastic oil comprises interconnected chain plates, rollers, sleeves, pins and plastic oil; the rollers or sleeves or pins or bushings A between the rollers and sleeves or bushings B between the sleeves and pins are inlaid with the plastic oil; the plastic oil uses a polymer as a matrix material and is mixed with lubricating oil and additives to form a viscous fluid-like substance, which is heated and solidified to form a microporous oil-containing lubricating medium, the micropores inside the plastic oil adsorb saturated lubricating oil, which is stored in the polymer micropores through surface tension, and during operation, the lubricating oil moves to the friction pair surface under the action of microporous capillaries under extrusion and heat to form a lubricating oil film, and when the operation stops, the lubricating oil will be re-adsorbed into the polymer and stored.
[0006] As a further solution of the utility model, the roller is sleeved on the outside of the sleeve, and the roller includes different sizes and shapes, including small rollers, large rollers or bearing rollers.
[0007] As a further solution of the utility model, the plastic oil is embedded in the sleeve, a hole is drilled in the radial direction through the outer side of the sleeve, or a groove is made in the axial direction, or a spiral groove is made on the cylindrical surface, and the plastic oil is filled in the hole or groove.
[0008] As a further solution of the utility model, the plastic oil is embedded in the pin shaft, a hole is drilled in the radial direction through the outer side of the pin shaft, or a groove is made in the axial direction, or a spiral groove is made on the cylindrical surface, and the plastic oil is filled in the hole or groove.
[0009] As a further solution of the utility model, the bushing A between the roller and the sleeve is inlaid with the plastic oil. The bushing A is applied between the sleeve and the roller, holes are drilled in the radial direction on the bushing A, or grooves are made in the axial direction, or spiral grooves are made on the cylindrical surface, and the holes or grooves are filled with plastic oil; or the bushing A as a whole is in the form of a sleeve wrapped with fiber cloth, and the holes formed by the circumferential and axial directions of the fiber are filled with plastic oil.
[0010] As a further solution of the utility model, the bushing B between the sleeve and the pin shaft is inlaid with the plastic oil, by drilling holes in the radial direction on the bushing B, or grooving in the axial direction, or making spiral grooves on the cylindrical surface, and filling the holes or grooves with plastic oil; or the bushing B as a whole is in the form of a sleeve wrapped with fiber cloth, and the holes formed by the circumferential and axial directions of the fiber are filled with plastic oil.
[0011] As a further solution of the utility model, it also includes a sealing ring, which is installed between the inner and outer chain plates or between the roller and the inner chain plate.
[0012] The utility model has the following beneficial effects:
[0013] The utility model provides an environmentally friendly plastic oil self-lubricating chain. Due to the built-in lubricating material, the chain does not need to be frequently refueled or lubricated, reducing maintenance costs and downtime. Compared with the prior art, the self-lubricating chain of the utility model has the following advantages: Self-lubricating performance: the plastic oil can automatically form a lubricating film when the chain is working, reducing the friction between the chains and effectively reducing chain wear. Anti-moisture and dust: the plastic oil can maintain a stable lubrication effect in a humid or dusty environment and is not easily affected by the external environment. Pollution-free: the plastic oil components are non-toxic and harmless, will not pollute the environment, and meet environmental protection requirements. Maintenance-free: due to the performance advantages of the plastic oil itself, there is no need to frequently add or replace lubricants during the use of the chain, reducing maintenance costs and manpower investment.
[0014] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is the overall structure diagram of the sleeve chain mentioned in the utility model;
[0016] Figure 2 It is a detailed structural diagram of the sleeve chain mentioned in the utility model;
[0017] Figure 3 This is the overall structure diagram of the roller chain mentioned in the utility model;
[0018] Figure 4 It is a detailed structural diagram of the roller chain mentioned in the utility model;
[0019] Figure 5 This is a schematic diagram of the double-row chain structure mentioned in the utility model;
[0020] Figure 6 This is a schematic diagram of the chain plate structure of the conveyor chain with ears mentioned in the utility model;
[0021] Figure 7 This is a schematic diagram of the chain plate structure with a side guard chain mentioned in the utility model;
[0022] Figure 8 This is a schematic diagram of the roller chain plate structure mentioned in the utility model;
[0023] Fig. 9 This is a structural diagram of a roller with a bearing mentioned in the utility model and inlaid with plastic oil in a rolling bearing;
[0024] Fig.10 This is a structural diagram of the roller or sleeve mentioned in the utility model, in which holes are drilled in the radial direction and plastic oil is embedded;
[0025] Fig.11 This is a structural diagram of the roller or sleeve mentioned in the utility model being grooved in the axial direction and inlaid with plastic oil;
[0026] Fig.12 The roller or sleeve mentioned in the utility model has a spiral groove on the circumferential surface and is inlaid with plastic oil structure diagram;
[0027] Fig.13 This is a schematic diagram of the sealing ring structure mentioned in the utility model;
[0028] Fig.14 This is a structural diagram of the bushing A or bushing B inlaid with plastic oil mentioned in the utility model;
[0029] Fig.15 This is a structural diagram of a pin shaft with embedded plastic body oil and a pin shaft without embedded plastic body oil mentioned in the utility model;
[0030] Fig.16 This is a structural diagram of the buffer wheel inlaid with plastic oil mentioned in the utility model.
[0031] The reference numerals are listed below:
[0032] 1. Inner link plate; 2. Outer link plate; 3. Roller; 25. Side baffle; 27. Skirt; 31. Small roller; 32. Large roller; 33. Bearing roller; 331. Bearing 332. Flange; 333. Round nut; 334. Engineering plastic; 4. Bushing A; 5. Sleeve; 6. Bushing B; 7. Pin; 8. Plastic oil; 801. Drilling; 802. Slotting; 803. Spiral groove; 101. Sealing ring; 5000. Sprocket; 6000. Buffer wheel; 7100. Inner link of sleeve chain; 7200. Outer link of sleeve chain; 7777. Sleeve chain; 9100. Inner link of roller chain; 9200. Outer link of roller chain; 9999. Roller chain. DETAILED DESCRIPTION
[0033] The present invention will be further described below in conjunction with the accompanying drawings and related knowledge, and described clearly and completely. Obviously, the described application is only a part of the embodiments of the present invention, rather than all of the embodiments.
[0034] Reference Figure 1-Figure 16 As shown, the utility model provides a self-lubricating chain based on plastic oil, which can maintain stable lubrication performance for a long time under dust, mud and humid environment conditions, and does not require frequent maintenance, while achieving pollution-free operation. The plastic oil 8 is a polymer such as polyethylene PE, ultra-high molecular weight polyethylene, polyimide or PEEK as a base material, and is mixed with lubricating oil and additives to form a viscous fluid-like substance, which is heated and solidified to form a microporous oil-containing lubricating medium. The micropores inside it adsorb saturated lubricating oil and store it in the polymer micropores through surface tension. During operation, the lubricating oil 8 moves to the surface of the friction pair under the action of microporous capillaries under extrusion and heat to form a lubricating oil film, and when it stops running, the lubricating oil will be re-absorbed into the polymer and stored.
[0035] The plastic oil self-lubricating chain of the utility model mainly comprises chain plates (inner chain plates and outer chain plates), rollers (roller chains have rollers, and sleeve chains do not have rollers), sleeves, pins, plastic oil and sealing rings (used for certain specific applications).
[0036] The chain has various structural forms, which are mainly designed according to their application purposes and working environments. Chains can be divided into single-row, double-row and multi-row according to the number of parallel chains.
[0037] According to the appearance characteristics, it can be divided into standard chain, conveyor chain with ears, long pitch chain, etc.
[0038] According to the diversity of the carrying platform, it can be divided into mesh chain, simple flat chain, chain with side guard, flanged chain plate, slotted chain plate and roller chain plate, etc., to meet different conveying needs.
[0039] In view of chains with various structural forms and functional requirements, the utility model adopts the following technical solutions:
[0040] Body-shaping oil embedded in rollers:
[0041] Since the roller is an element that rolls on the outside of the sleeve, the roller can have different sizes and shapes, such as small rollers, large rollers or bearing rollers.
[0042] For small rollers, due to space limitations, holes can be drilled in the radial direction on the outside of the roller, or grooves can be made in the axial direction, or spiral grooves can be made on the cylindrical surface, and plastic oil can be filled in the holes or grooves.
[0043] For large rollers, due to the large space, non-metallic elastic materials are coated on the outside of the roller (or the roller is made of non-metallic materials as a whole), and holes or grooves are made in the non-metallic material to embed plastic oil (see a for holes or grooves), which can not only reduce vibration and noise, but also play a role in lubrication. For example, embedding plastic oil in UPE or polyurethane rollers.
[0044] For the bearing, a rolling bearing of appropriate size is installed between the outer side of the roller and the coated engineering plastic, and the gap of the rolling bearing is filled with plastic oil.
[0045] Plastic oil embedded in the sleeve:
[0046] The sleeve is placed outside the pin, and usually due to space limitations, the sleeve thickness is small. Whether it is a roller chain or a sleeve chain, the sleeve and the pin or roller form a rotating pair, and there is friction contact, so a hole is drilled in the radial direction on the outside of the sleeve, or a groove is made in the axial direction, or a spiral groove is made on the cylindrical surface, and plastic oil is filled in the hole or groove.
[0047] Plastic oil embedded in the pin:
[0048] The pin is a rod-shaped component that passes through the sleeve and connects the inner and outer chain plates. It provides support and guidance for the sleeve and chain. The sleeve and the pin form a rotating pair, and there is also friction contact. Therefore, a hole is drilled in the radial direction on the outside of the pin, or a groove is made in the axial direction, or a spiral groove is made on the cylindrical surface, and plastic oil is filled in the hole or groove.
[0049] Bushing A between roller and sleeve is inlaid with plastic oil:
[0050] When designing the chain structure, the bushing A is applied between the sleeve and the roller, holes are drilled in the radial direction on the bushing, or grooves are made in the axial direction, or spiral grooves are made on the cylindrical surface, and plastic oil is filled in the holes or grooves. The bushing as a whole is in the form of a sleeve wound with fiber cloth, and plastic oil is filled in the holes formed by the circumferential and axial directions of the fiber.
[0051] Bushing B between the sleeve and the pin is inlaid with plastic oil:
[0052] Similarly, when designing the chain structure, bushing B is applied between the sleeve and the pin, holes are drilled in the radial direction on the bushing, or grooves are made in the axial direction, or spiral grooves are made on the cylindrical surface, and plastic oil is filled in the holes or grooves. The bushing as a whole is in the form of a sleeve wrapped with fiber cloth, and plastic oil is filled in the holes formed by the circumferential and axial directions of the fiber.
[0053] Sealing ring:
[0054] In some specific environments and applications, it is necessary to add a sealing ring; the sealing ring is installed between the inner and outer chain plates or between the roller and the inner chain plate. In order to prevent the plastic oil from contacting with food or the invasion of external pollutants, a special sealing ring structure is designed. The sealing ring is usually made of wear-resistant rubber or synthetic materials.
[0055] External buffer wheel:
[0056] In order to improve the performance of the chain system and reduce the noise and vibration generated during operation, a buffer wheel can be installed on the outside of the chain link or on the outside of the sprocket. These buffer wheels are made of materials with good elasticity and wear resistance, and are embedded with plastic oil. They can effectively absorb impact force and alleviate the vibration generated by the chain during movement through their own deformation, providing users with a quieter and more comfortable use environment.
[0057] The utility model provides an environmentally friendly plastic oil self-lubricating chain. Due to the built-in lubricating material, the chain does not need to be frequently refueled or lubricated, reducing maintenance costs and downtime. Compared with the prior art, the self-lubricating chain of the utility model has the following advantages:
[0058] Self-lubricating performance: Plastic oil can automatically form a lubricating film when the chain is working, reducing the friction between chains and effectively reducing chain wear.
[0059] Anti-moisture and dust: Plastic oil can maintain a stable lubricating effect in a humid or dusty environment and is not easily affected by the external environment.
[0060] No pollution: The body shaping oil is non-toxic and harmless, will not pollute the environment, and meets environmental protection requirements.
[0061] Maintenance-free: Due to the inherent advantages of plastic oil, there is no need to frequently add or replace lubricants during the use of the chain, reducing maintenance costs and manpower investment.
[0062] The following provides specific embodiments of the present invention.
[0063] Reference Figure 1-Figure 6As shown, the plastic oil self-lubricating chain of the utility model mainly includes chain plates (inner chain plates 1 and outer chain plates 2, rollers 3 (roller chain 9999 has rollers, sleeve chain 7777 has no rollers), sleeves 5, pins 7, plastic oil 8 and sealing rings 101 for certain specific applications.
[0064] The following is a detailed description of these components:
[0065] Chain plates: They are divided into inner chain plates 1 and outer chain plates 2, usually made of carbon steel or alloy steel, and heat-treated to enhance strength and wear resistance. The most typical chain plate shape is designed as an "8"-shaped cross section, which not only optimizes the material distribution and makes the various parts of the chain evenly stressed, but also effectively reduces the weight, reduces the inertia force during operation, and improves the power transmission efficiency. In addition, for different industries and application scenarios, the chain plates can be designed with special functions, such as adding side guards 25, skirts 27, rollers 33, slots, etc., to meet specific conveying requirements, such as anti-slip, anti-overflow, noise reduction, etc.
[0066] Roller: An element that rolls on the outside of the sleeve, reducing friction at the contact surface between the chain and the sprocket, improving transmission efficiency. Roller 3 allows the chain to roll on the sprocket instead of sliding, which helps reduce wear and improves energy efficiency. Roller 3 can have different sizes and shapes, such as small roller 31, large roller 32 or bearing roller 33, to suit different application requirements.
[0067] Sleeve: Sleeve 5 is a cylindrical element mounted on the pin 7 and fixedly connected to the inner link plate 1, usually made of alloy steel or stainless steel. Its main function is to provide support and guidance for the rollers during movement, while reducing the friction between the chain and the sprocket. For the sleeve chain 7777, there is no roller 3, but the sleeve 5 directly contacts the sprocket, and the sleeve is mounted on the pin, and the sleeve and the pin together constitute the hinge pair of the chain.
[0068] Pin: Pin 7 is a rod-shaped component that passes through the sleeve 5 and connects the inner and outer chain plates. It provides support and guidance for the sleeve and chain, and is usually made of high-strength steel, enabling it to work stably for a long time under high loads and harsh environments. Depending on the application requirements, the pin can be designed as a solid or hollow structure.
[0069] Plastic oil: Plastic oil 8 is embedded on roller 3, sleeve 5, and pin 7; or plastic oil 8 is embedded on bushing A4 between roller 3 and sleeve 5, and plastic oil 8 is embedded on bushing B6 between sleeve 5 and pin 7 as a lubricant to reduce friction, reduce wear, and extend service life. Plastic oil is a high-molecular polymer material with special lubrication properties. Saturated lubricating oil is adsorbed inside. During the movement of the chain, the lubricating oil moves to the surface of the friction pair under the action of capillary action to form a lubricating oil film. When the chain stops running, the lubricating oil will be re-absorbed into the polymer and stored. They are designed to be self-lubricating, without the need for an additional lubrication system, and are suitable for various industrial applications and environmental conditions.
[0070] Sealing ring: In some specific environments and applications, a sealing ring 101 is required to prevent lubricant leakage or external contaminants from entering the chain, thereby protecting the chain from the harsh external environment. The sealing ring is usually made of wear-resistant rubber or synthetic materials, with good durability and sealing performance to ensure the reliable operation of the chain in harsh environments.
[0071] The chain has various structural forms, which are mainly designed according to their application purposes and working environments. Chains can be divided into single-row, double-row and multi-row according to the number of parallel chains.
[0072] According to the appearance characteristics, it can be divided into standard chain, conveyor chain with ears, long pitch chain, etc.
[0073] According to the diversity of the carrying platform, it can be divided into mesh chain, simple flat chain, chain with side guard, flanged chain plate, slotted chain plate and roller chain plate, etc., to meet different conveying needs.
[0074] The plastic oil self-lubricating chain system described in the utility model is suitable for various industrial application scenarios, including but not limited to production line conveying equipment, mechanical processing equipment, etc. Due to its excellent waterproof, dustproof, anti-sand ability, as well as pollution-free, shock-absorbing, noise-reducing and self-lubricating performance; the plastic oil self-lubricating chain is widely used in various occasions requiring chain transmission, especially in the following fields:
[0075] Food processing: Food production lines need to avoid contamination from external lubricants, so self-lubricating chains are very suitable.
[0076] Pharmaceutical manufacturing: also requires high levels of cleanliness and hygiene to avoid contamination from external lubricants.
[0077] Packaging equipment: These equipment are usually operated frequently and require low maintenance solutions.
[0078] Textile industry: Textile equipment usually runs at a high speed, and self-lubricating chains can reduce noise and wear.
[0079] Iron and steel metallurgy: high temperature, heavy load, continuous impact load, dust, iron filings, etc. Self-lubricating chain can prevent dust, reduce noise and is maintenance-free.
[0080] Mining construction: dusty, humid, vibrating and impacting, requiring dust and noise reduction to reduce friction.
[0081] In view of various structural forms and functional requirements, the utility model adopts the following technical solutions:
[0082] Roller 3 embedded with body oil 8:
[0083] Since the roller 3 is a rolling element mounted on the outside of the sleeve 5 , the roller can have different sizes and shapes, such as a small roller 31 , a large roller 32 or a bearing roller 33 .
[0084] For the small roller 31, due to space limitations, a hole 801 may be drilled in the radial direction on the outside of the roller, or a groove 802 may be made in the axial direction, or a spiral groove 803 may be made on the cylindrical surface, and plastic oil 8 may be filled in the hole or groove.
[0085] For the large roller 32, since the space is relatively large, the outer side of the roller is coated with non-metallic elastic material or the roller is made of non-metallic material as a whole, and holes or grooves are opened in the non-metallic material to embed plastic oil. The holes or grooves refer to a, which can not only play the role of shock absorption and noise reduction, but also play the role of lubrication.
[0086] For the bearing roller 33, a rolling bearing 331 of a suitable size is installed in the engineering plastic 334 coated on the outer side of the roller, and the gap of the rolling bearing is filled with plastic oil 8.
[0087] The sleeve 5 is embedded with plastic oil 8:
[0088] The sleeve 5 is sleeved outside the pin 7. Usually, due to space limitations, the thickness of the sleeve is relatively small. Whether it is a roller chain or a sleeve chain, the sleeve 5 and the pin 7 or the roller 3 form a revolving pair and have friction contact. Therefore, a hole 801 is drilled along the radial direction on the outside of the sleeve 5, or a groove 802 is made along the axial direction, or a spiral groove 803 is made on the cylindrical surface, and plastic oil 8 is filled in the hole or groove.
[0089] The pin 7 is embedded with plastic oil 8:
[0090] The pin 7 is a rod-shaped component that passes through the sleeve 5 and connects the inner and outer chain plates. It provides support and guidance for the sleeve 5 and the chain. The sleeve 5 and the pin 7 form a revolving pair, and there is also friction contact. Therefore, a hole 801 is drilled along the radial direction on the outer side of the pin, and plastic oil 8 is filled in the hole or groove.
[0091] Bushing A4 inlaid plastic oil 8:
[0092] When designing the chain structure, the bushing 4 is applied between the sleeve 5 and the roller 3, a hole 801 is drilled in the radial direction on the bushing 4, or a groove 802 is made in the axial direction, or a spiral groove 803 is made on the cylindrical surface, and plastic oil 8 is filled in the hole or groove; and the bushing as a whole is in the form of a sleeve 804 with fiber cloth wrapped around it, and plastic oil 8 is filled in the holes formed by the circumferential and axial directions of the fiber.
[0093] The material of bushing A includes metal, non-metal, fiber reinforced composite material, etc.
[0094] Metal bushings are used to reduce wear, provide support or improve the fit of two contact surfaces. Depending on the material, manufacturing process and application scenario, metal bushings mainly include the following types:
[0095] Bimetallic bushing: usually made of two different materials, such as copper alloy and steel, which combines the advantages of different materials and has both good wear resistance and high strength.
[0096] Copper alloy bushings: such as brass, bronze, etc., have good wear resistance, self-lubrication and corrosion resistance, and are suitable for medium and low speeds and light to medium loads.
[0097] Aluminum alloy bushings: such as aluminum-tin alloy, aluminum-copper alloy, etc. Aluminum alloy is light, corrosion-resistant, and has good wear resistance, self-lubrication and corrosion resistance.
[0098] Carbide bushings such as tungsten steel bushings: Made of hard compounds and bonded metal powder metallurgy, they have extremely high hardness and wear resistance and are suitable for high wear and impact load environments.
[0099] Non-metallic bushings are manufactured by injection molding, extrusion, molding and other processes due to their light weight, self-lubricating, corrosion resistance and other characteristics. They include but are not limited to the following:
[0100] Polyoxymethylene POM bushing: has good wear resistance, self-lubrication and dimensional stability, suitable for sliding bearing applications with medium and low loads.
[0101] Polytetrafluoroethylene (PTFE) bushings: Known for their extremely low friction coefficient and excellent chemical inertness, they are suitable for high temperature and corrosive environments.
[0102] Nylon bushings: lower cost, good wear resistance, suitable for light load and low speed applications.
[0103] Polyurethane PU bushing: good elasticity, strong vibration absorption ability, suitable for occasions requiring buffering and shock absorption.
[0104] Polyetheretherketone (PEEK) bushing: a special engineering plastic with excellent properties such as high temperature resistance, self-lubrication, easy processing and high mechanical strength, which can be manufactured and processed into various mechanical parts.
[0105] Polyimide, abbreviated as PI, refers to a type of polymer containing an imide ring -CO-NR-CO- on the main chain. It is one of the organic polymer materials with the best comprehensive performance. It can withstand high temperatures of more than 400°C. It has excellent wear resistance, self-lubrication, high temperature resistance, etc.
[0106] Ultra-high molecular weight polyethylene (UPE) is a thermoplastic engineering plastic with a molecular weight higher than 1.5 million. It has excellent wear resistance, impact resistance, corrosion resistance, self-lubrication and impact absorption properties.
[0107] Composite bushings are used in situations where space is limited, loads are high, and wear resistance and friction reduction are required; composite bushings mainly include the following types:
[0108] Carbon Fiber Reinforced Plastic (CFRP) Bushings: High strength, lightweight, suitable for high performance and high load applications.
[0109] Glass fiber reinforced plastic GFRP bushing: high strength, corrosion resistance, suitable for replacing metal bushings to reduce costs.
[0110] Bushing B6 inlaid plastic oil 8:
[0111] Like bushing A, when designing the chain structure, bushing B6 is applied between sleeve 5 and pin 7, holes 801 are drilled in radial direction on bushing 6, or grooves 802 are made in axial direction, or spiral grooves 803 are made on the cylindrical surface, and plastic oil 8 is filled in the holes or grooves; and the bushing as a whole is in the form of a sleeve 804 with fiber cloth wrapped around it, and plastic oil 8 is filled in the holes formed by the circumferential and axial directions of the fiber.
[0112] The material of bushing B includes metal, non-metal, fiber reinforced composite material, etc.
[0113] Due to the space limitations of the sleeve and the pin, fiber-reinforced composite bushings are often used.
[0114] Metal bushings are used to reduce wear, provide support or improve the fit of two contact surfaces. Depending on the material, manufacturing process and application scenario, metal bushings mainly include the following types:
[0115] Bimetallic bushing: usually made of two different materials, such as copper alloy and steel, which combines the advantages of different materials and has both good wear resistance and high strength.
[0116] Copper alloy bushings: such as brass, bronze, etc., have good wear resistance, self-lubrication and corrosion resistance, and are suitable for medium and low speeds and light to medium loads.
[0117] Aluminum alloy bushings: such as aluminum-tin alloy, aluminum-copper alloy, etc. Aluminum alloy is light, corrosion-resistant, and has good wear resistance, self-lubrication and corrosion resistance.
[0118] Carbide bushings such as tungsten steel bushings: Made of hard compounds and bonded metal powder metallurgy, they have extremely high hardness and wear resistance and are suitable for high wear and impact load environments.
[0119] Non-metallic bushings are manufactured by injection molding, extrusion, molding and other processes due to their light weight, self-lubricating, corrosion resistance and other characteristics. They include but are not limited to the following:
[0120] Polyoxymethylene POM bushing: has good wear resistance, self-lubrication and dimensional stability, suitable for sliding bearing applications with medium and low loads.
[0121] Polytetrafluoroethylene (PTFE) bushings: Known for their extremely low friction coefficient and excellent chemical inertness, they are suitable for high temperature and corrosive environments.
[0122] Nylon bushings: lower cost, good wear resistance, suitable for light load and low speed applications.
[0123] Polyurethane PU bushing: good elasticity, strong vibration absorption ability, suitable for occasions requiring buffering and shock absorption.
[0124] Polyetheretherketone (PEEK) bushing: a special engineering plastic with excellent properties such as high temperature resistance, self-lubrication, easy processing and high mechanical strength, which can be manufactured and processed into various mechanical parts.
[0125] Polyimide, abbreviated as PI, refers to a type of polymer containing an imide ring -CO-NR-CO- on the main chain. It is one of the organic polymer materials with the best comprehensive performance. It can withstand high temperatures of more than 400°C. It has excellent wear resistance, self-lubrication, high temperature resistance, etc.
[0126] Ultra-high molecular weight polyethylene (UPE) is a thermoplastic engineering plastic with a molecular weight higher than 1.5 million. It has excellent wear resistance, impact resistance, corrosion resistance, self-lubrication and impact absorption properties.
[0127] Composite bushings are used in situations where space is limited, loads are high, and wear resistance and friction reduction are required; composite bushings mainly include the following types:
[0128] Carbon Fiber Reinforced Plastic (CFRP) Bushings: High strength, lightweight, suitable for high performance and high load applications.
[0129] Glass fiber reinforced plastic GFRP bushing: high strength, corrosion resistance, suitable for replacing metal bushings to reduce costs.
[0130] Sealing ring:
[0131] In some specific environments and applications, it is necessary to add a sealing ring 101; the sealing ring 101 is installed between the inner and outer chain plates or between the roller and the inner chain plate. In order to prevent the plastic oil from contacting with food or the invasion of external pollutants, a special sealing ring structure is designed, and the sealing ring is usually made of wear-resistant rubber or synthetic materials.
[0132] External buffer wheel:
[0133] In order to improve the performance of the chain system and reduce the noise and vibration generated during operation, a buffer wheel 6000 can be installed outside the chain link or outside the sprocket 5000. These buffer wheels 6000 are made of materials with good elasticity and wear resistance, and are embedded with plastic oil 8. They can effectively absorb impact force and alleviate the vibration generated by the chain during movement through their own deformation, providing users with a quieter and more comfortable use environment. Embodiment 1:
[0134] Taking food processing equipment as an example, the self-lubricating chain of the utility model can be applied to conveyor belts, agitators and other components to improve the operating efficiency and safety of the equipment. In the process of food processing, due to the strict requirements of the working environment, the traditional lubrication method may have the risk of lubricant contamination of the product. The use of self-lubricating chains based on plastic oil and sealing ring protection can not only avoid this problem, but also improve the stability and reliability of the equipment, and ensure the hygienic safety of food processing. Embodiment 2:
[0135] Printing equipment - paper conveyor chain:
[0136] The paper conveying chain in the printing press needs to run fast without paper jams to ensure printing quality. Inlaying plastic oil on each bearing roller of the chain provides stable and long-lasting lubrication for the chain. This helps reduce friction and noise, and the paper passes through the printing press smoothly and smoothly. Embodiment 3:
[0137] Agricultural machinery and equipment - Harvester transmission chain:
[0138] When the harvester is working, the transmission chain is under high load in a harsh environment. The plastic oil self-lubricating chain plays a key role in the entire transmission system. The plastic oil lubricant is embedded in the bushing A, which continuously provides lubrication during operation to avoid corrosion and wear caused by mud and moisture.
[0139] It should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. In the above technical solutions, the technical solution for implementing the body shaping oil can be a single technical solution, or a combination of any two or more of the above materials or structures. All equal changes and modifications made according to the scope of the patent application of this utility model shall fall within the scope of coverage of this utility model.
[0140] The technical principle of the utility model is described above in combination with the specific embodiments, which are only the preferred implementation methods of the utility model. The protection scope of the utility model is not limited to the above embodiments, and all technical solutions under the idea of the utility model belong to the protection scope of the utility model. Those skilled in the art can think of other specific implementation methods of the utility model without creative labor, and these methods will fall within the protection scope of the utility model.
Claims
1. A self-lubricating chain based on plastic oil, characterized in that: It comprises mutually connected chain plates, rollers, sleeves, pins and plastic oil; at least one of the rollers, sleeves, pins, bushings A between the rollers and the sleeves and bushings B between the sleeves and the pins is embedded with the plastic oil.
2. A plastic oil-based self-lubricating chain as claimed in claim 1, characterized in that: The roller is sleeved on the outside of the sleeve. The roller includes different sizes and shapes, including small rollers, large rollers or bearing rollers. The roller is embedded with the plastic oil by drilling holes in the radial direction, or grooving in the axial direction, or making spiral grooves on the cylindrical surface and filling the holes or grooves with plastic oil; and filling the gap of the rolling bearing with plastic oil.
3. A plastic oil-based self-lubricating chain as claimed in claim 1, characterized in that: The plastic oil is embedded in the sleeve, a hole is drilled in the radial direction through the outer side of the sleeve, or a groove is made in the axial direction, or a spiral groove is made on the cylindrical surface, and the plastic oil is filled in the hole or the groove.
4. A plastic oil-based self-lubricating chain as claimed in claim 1, characterized in that: The pin shaft is inlaid with the plastic oil, a hole is drilled in the radial direction through the outer side of the pin shaft, or a groove is made in the axial direction, or a spiral groove is made on the cylindrical surface, and the plastic oil is filled in the hole or the groove.
5. A plastic oil-based self-lubricating chain as claimed in claim 1, characterized in that: The bushing A between the roller and the sleeve is inlaid with the plastic oil. The bushing A is applied between the sleeve and the roller, holes are drilled in the radial direction on the bushing A, or grooves are made in the axial direction, or spiral grooves are made on the cylindrical surface, and the holes or grooves are filled with plastic oil; or the bushing A as a whole is in the form of a sleeve wrapped with fiber cloth, and the holes formed by the circumferential and axial directions of the fiber are filled with plastic oil.
6. A plastic oil-based self-lubricating chain as claimed in claim 1, characterized in that: The bushing B between the sleeve and the pin shaft is inlaid with the plastic oil, by drilling holes in the radial direction on the bushing B, or grooving in the axial direction, or making spiral grooves on the cylindrical surface, and filling the holes or grooves with plastic oil; or the bushing B as a whole is in the form of a sleeve wrapped with fiber cloth, and the holes formed by the circumferential and axial directions of the fiber are filled with plastic oil.
7. A plastic oil-based self-lubricating chain as claimed in claim 1, characterized in that: The chain includes a plurality of chain links, and the chain links include at least one of an inner link plate, an outer link plate or a middle link plate.
8. A plastic oil-based self-lubricating chain as claimed in claim 7, characterized in that: It also includes a sealing ring, which is installed between the inner and outer chain plates or between the roller and the inner chain plate.