Plastic oil self-lubricating maintenance-free plastic gear

Abstract

The utility model discloses a plastic oil self-lubricating maintenance-free plastic gear which comprises a plastic gear body, gear teeth, a meshing face, a tooth end face and plastic oil. And the plastic body oil is embedded on the (tooth profile surface) meshing surface or two end surfaces of the plastic gear in a covering manner. When the plastic gear runs, plastic oil is in contact with a tooth surface and is used for lubricating the gear, the novel self-lubricating maintenance-free plastic gear provided by the utility model takes the plastic oil consisting of an oil-saturated polymer matrix as a lubricating medium, and a lubricating film is autonomously formed in the running process of the plastic gear, so that the service life of the plastic gear is prolonged, and the service life of the plastic gear is prolonged. Therefore, maintenance frequency is reduced, friction loss is reduced, wear resistance is enhanced, and maintenance is avoided. And the solid plastic oil is not easy to leak, so that the risk of environmental pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive and lubrication technical field, concretely is self -lubricating plastic gear based on plastic body oil, aims at solving the lubrication problem of plastic gear. BACKGROUND

[0002] Plastic gear is the mechanical element that relies on the continuous toothed transmission of wheel rim and transmits motion and power, the transmission process of plastic gear is realized through the mutual tooth of gear in the process of running, the heat generation is accompanied in the process of mutual tooth of gear and the wear and tear of gear is also produced, the existing plastic gear generally adopts the method of lubricating oil lubrication to prevent wear and tear on the prevention and treatment of wear and tear, but the lubricating oil lubrication of plastic gear has the following shortcomings: the surface smoothness of plastic gear is usually low, is easy to produce friction and wear and tear, leads to transmission efficiency reduction, shortens the life, lubricating oil needs to be added or replaced regularly, increases maintenance cost and workload, lubricating oil is easy to lose, especially under high speed or heavy load working conditions, can lead to insufficient lubrication, with the lapse of time, the loss of lubricating oil, can aggravate the wear and tear of gear and produce vibration and noise, can seriously lead to plastic performance degradation or even stress cracking, in some applications, the position and structure of plastic gear can make the supplement and replacement of lubricating oil more difficult, in order to improve the working life of plastic gear, it is particularly important to develop a kind of self -lubricating plastic gear without pollution and maintenance free. CONTENT

[0003] In view of the deficiencies existing in the prior art, the utility model provides a kind of self -lubricating plastic gear based on plastic body oil, the plastic gear can keep stable lubricating property for a long time, independently form lubricating film in the running process, to reduce maintenance frequency, reduce friction loss, enhance life even maintenance free.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of self -lubricating plastic gear based on plastic body oil, including: gear teeth, tooth profile / toothed surface, tooth end surface, plastic body oil;The tooth profile surface of the plastic gear or gear end surface is inlaid with the plastic body oil, the plastic body oil is with polymer as matrix material, and is mixed with lubricating oil and additive, forms the substance of viscous fluid, is cured after heating, so that it forms the lubricating medium of microporous oil-containing, the micropore in its interior adsorbs saturated lubricating oil, is stored in polymer micropore by surface tension, in the running process, lubricating oil moves to the surface of friction pair under the action of micropore capillary under extrusion and thermal influence, forms lubricating oil film, and when stopping running, lubricating oil is stored in polymer by re-adsorption.

[0006] As a further scheme of the utility model, the plastic gear has different sizes and shapes, including spur gears, helical gears or bevel gears.

[0007] As a further scheme of the utility model, the shape of the gear tooth comprises an involute curve and a circular arc curve.

[0008] As a further scheme of the utility model, the tooth profile of the plastic gear is filled with the plastic oil in the annular groove in the circumferential direction, the annular groove can be processed in one or several according to the width of the gear, and the plastic oil is filled in the annular groove.

[0009] As a further scheme of the utility model, the plastic oil is embedded in the tooth surface hole of the plastic gear, the hole is drilled in the normal direction of the tooth surface, the number of the hole is different according to the width of the plastic gear, and the plastic oil is filled in the hole.

[0010] As a further scheme of the utility model, the plastic oil is embedded in the axial groove of the tooth surface of the plastic gear, the groove is processed on the tooth surface, the number and length of the groove are not limited, and the plastic oil is filled in the long groove.

[0011] As a further scheme of the utility model, the material of the gear is a composite material, an engineering plastic, a metal material or a material combined with metal and nonmetal, which is not limited.

[0012] As a further scheme of the utility model, the plastic oil is a high polymer material with special lubricating performance, and the saturated lubricating oil is adsorbed in the plastic oil, in the running process, the lubricating oil moves to the surface of the friction pair under the capillary action, and forms a lubricating oil film, and when the plastic gear stops running, the lubricating oil is adsorbed into the polymer and stored.

[0013] As a further scheme of the utility model, the plastic oil is a high polymer material with special lubricating performance, and the saturated lubricating oil is adsorbed in the plastic oil, in the running process, the lubricating oil moves to the surface of the friction pair under the capillary action, and forms a lubricating oil film, and when the plastic gear stops running, the lubricating oil is adsorbed into the polymer and stored.

[0014] The utility model has the following beneficial effects:

[0015] The utility model provides a kind of environment-friendly plastic oil self-lubricating plastic gear.Due to built-in lubricating material, gear does not need frequent oiling or lubrication, reduce maintenance cost and downtime.Compared with prior art, the self-lubricating plastic gear of the utility model has the following advantages:

[0016] Self-lubricating performance: plastic body oil can automatically form a lubricating film during gear operation, reducing the friction between the tooth profile and the tooth profile, effectively reducing the wear of the gear.

[0017] No pollution: the composition of plastic body oil is non-toxic and harmless, and will not pollute the environment, meeting the environmental protection requirements.

[0018] Maintenance-free: due to the advantages of plastic body oil itself, the gear does not need to be frequently added or replaced during use, reducing maintenance cost and manpower investment.

[0019] In order to more clearly illustrate the structural characteristics and functions of the utility model, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the straight gear end face inlaid with plastic body oil mentioned in the utility model is shown in the figure;

[0021] Figure 2 The structure diagram of the helical gear end face inlaid with plastic body oil mentioned in the utility model is shown in the figure;

[0022] Figure 3 The structure diagram of the bevel gear end face inlaid with plastic body oil mentioned in the utility model is shown in the figure;

[0023] Figure 4 The structure diagram of the straight gear groove filled with plastic body oil mentioned in the utility model is shown in the figure;

[0024] Figure 5 The structure diagram of the helical gear annular groove filled with plastic body oil mentioned in the utility model is shown in the figure;

[0025] Figure 6 The structure diagram of the bevel gear annular groove filled with plastic body oil mentioned in the utility model is shown in the figure;

[0026] Figure 7 The radial cross-sectional view of the straight gear, helical gear and bevel gear annular groove filled with plastic body oil mentioned in the utility model is shown in the figure;

[0027] Figure 8 The structure diagram of the straight gear tooth surface hole filled with plastic body oil mentioned in the utility model is shown in the figure;

[0028] Figure 9 The structure diagram of the helical gear tooth surface hole filled with plastic body oil mentioned in the utility model is shown in the figure;

[0029] Figure 10 The structure diagram of the bevel gear tooth surface hole filled with plastic body oil mentioned in the utility model is shown in the figure;

[0030] Figure 11 The structure diagram of the straight gear tooth surface groove filled with plastic body oil mentioned in the utility model is shown in the figure;

[0031] Figure 12 The schematic diagram of the filling plastic oil structure of the tooth surface groove of the bevel gear mentioned in the utility model;

[0032] Figure 13 The schematic diagram of the filling plastic oil structure of the tooth surface groove of the bevel gear mentioned in the utility model;

[0033] Figure 14 The radial sectional view of the filling plastic oil of the concave and groove of the spur gear, the bevel gear and the bevel gear mentioned in the utility model;

[0034] The list of reference signs is as follows:

[0035] 1, tooth; 2, tooth surface; 3, tooth end surface; 4, plastic oil. DETAILED DESCRIPTION

[0036] The utility model will be further described in the combination of the drawings and the related knowledge, and it is obviously that the described application is only a part of the embodiment of the utility model, rather than all the embodiments.

[0037] The utility model will be further described in the combination of the drawings and the related knowledge, and it is obviously that the described application is only a part of the embodiment of the utility model, rather than all the embodiments. Embodiment 1

[0038] A plastic oil self-lubricating maintenance-free plastic gear, its structural type is spur gear, bevel gear and bevel gear, its tooth shape is involute or circular arc curve, and specifically includes tooth, tooth surface, tooth end surface and plastic oil, the plastic oil is coated on the tooth profile and tooth end surface, and plays the roles of self-lubrication, leakage prevention and maintenance-free.

[0039] In the example, refer to the attached Figure 1 , the attached Figure 2 and the attached Figure 3 ; the end surface of the plastic gear is embedded with plastic oil, the plastic oil is mixed with lubricating oil and additives by taking polymers such as polyethylene PE, ultrahigh molecular weight polyethylene, polyimide or PEEK as matrix materials, forms a viscous fluid lubricating medium, is heated and solidified through injection molding, mold pressing, vulcanization and other ways, and is made into a porous oil-containing lubricating material, these micropores can accommodate lubricating oil and retain it in the material through surface tension. The lubricant provides excellent lubrication effect for the plastic gear. Embodiment 2

[0040] A plastic body oil self-lubricating maintenance-free plastic gear, which is in the form of a spur gear, helical gear and bevel gear, and has a tooth profile of involute or circular arc curve, comprises gear teeth, tooth surface, tooth end surface and plastic body oil, the gear teeth are filled with the plastic body oil in a groove along the circumferential direction, and the groove can be processed into one or several annular grooves according to the width of the gear, and the plastic body oil is filled in the annular groove.

[0041] In the present example, reference is made to the accompanying drawings of Figure 4 , the accompanying drawings of Figure 5 and the accompanying drawings of Figure 6 ; the tooth surface hole of the plastic gear is embedded with the plastic body oil, the plastic body oil is made of polymers 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 lubricating medium, and is heated and solidified by injection molding, die pressing, vulcanization and other methods to form a porous oil-containing lubricating material, and the micropores can accommodate lubricating oil and retain it in the material by surface tension. The lubricant provides excellent lubrication for the plastic gear. Example 3

[0042] A plastic body oil self-lubricating maintenance-free plastic gear, which is in the form of a spur gear, helical gear and bevel gear, and has a tooth profile of involute or circular arc curve, comprises gear teeth, tooth surface, tooth end surface and plastic body oil, the gear teeth are filled with the plastic body oil in a groove along the circumferential direction, and the groove can be processed into one or several annular grooves according to the width of the gear, and the plastic body oil is filled in the annular groove. The plastic body oil embedded in the hole plays a self-lubricating, leak-proof and maintenance-free role.

[0043] In the present example, reference is made to the accompanying drawings of Figure 8 , the accompanying drawings of Figure 9 and the accompanying drawings of Figure 10 ; the tooth surface hole of the plastic gear is embedded with the plastic body oil, the plastic body oil is made of polymers 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 lubricating medium, and is heated and solidified by injection molding, die pressing, vulcanization and other methods to form a porous oil-containing lubricating material, and the micropores can accommodate lubricating oil and retain it in the material by surface tension. The lubricant provides excellent lubrication for the plastic gear. Example 4

[0044] The utility model provides a kind of plastic body oil self-lubricating maintenance-free plastic gear, structural type is straight gear, helical gear and bevel gear;Its tooth shape is involute or circular arc curve;Including: gear teeth, tooth surface, tooth end surface and plastic body oil;The tooth surface of the gear is inlaid with the plastic body oil along axial groove, by processing axial groove on tooth surface, the length and quantity of groove are not same according to the width of gear, fill plastic body oil in groove.The plastic body oil is inlaid in recess, and it plays the role of self-lubricating, leakage prevention and maintenance-free.

[0045] In the present example, refer to attached Figure 11 , attached Figure 12 And attached Figure 13 ; The tooth surface of plastic gear is inlaid with plastic body oil;Plastic body oil is mixed with lubricating oil and additive by using polyethylene PE, ultra-high molecular weight polyethylene, polyimide or PEEK as matrix material, and forms viscous fluid lubricating medium, and is formed into porous oil-containing lubricating material by injection molding, molding, vulcanization and other ways, and these micropores can accommodate lubricating oil and retain it in the material by surface tension.Lubricant provides excellent lubrication effect for plastic gear.

[0046] Compared with prior art, the utility model has the following beneficial effects:

[0047] Superior performance: plastic body oil inlaying technology can effectively reduce the friction between gears, thereby reducing vibration and noise, significantly improving equipment operation stability and durability.

[0048] Environmentally friendly and safe: solid form is not easy to leak, reducing the risk of environmental pollution.

[0049] Low friction and wear: plastic body oil can form a lubricating film autonomously, reducing the friction and wear between plastic gears.

[0050] Maintenance-free: maintenance-free performance of plastic gear is realized, reducing user's use and maintenance cost.

[0051] The utility model utilizes the high-efficiency lubricating characteristics of plastic body oil, significantly improves the stability and durability of plastic gear operation, reduces equipment failure caused by poor lubrication, thereby improving production efficiency and reducing maintenance cost, and highlights the creativity and practicality of the utility model in the field of plastic gear.

[0052] Although some embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and all should belong to the scope of the utility model.

Claims

1. A self-lubricating, maintenance-free plastic gear, characterized in that, include: The gear has teeth, a meshing surface, a tooth end face, and a plastic oil; the meshing surface and / or the tooth end face are inlaid with the plastic oil; the meshing surface of the plastic gear has an annular groove along the circumferential direction, or a hole along the normal direction, or a groove along the axial direction, or the tooth end face has an inlay area, and the plastic oil is inlaid in the annular groove, hole, groove, or inlay area.

2. The self-lubricating, maintenance-free plastic gear according to claim 1, characterized in that, The plastic gears come in different sizes and shapes, including spur gears, helical gears, or bevel gears.

3. The self-lubricating, maintenance-free plastic gear according to claim 1, characterized in that, The shape of the gear teeth includes involute curves and circular arc curves.

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