Oil injection lubricating device and gear box

Abstract

An oil injection lubricating device and a gearbox relate to the technical field of mechanical transmission, and comprise two first oil baffle plates and two second oil baffle plates, the two first oil baffle plates are arranged at intervals in a first direction, and the two second oil baffle plates are arranged at intervals in a second direction forming an included angle with the first direction. The two first oil baffle plates and the two second oil baffle plates are sequentially and alternately arranged and connected end to end, and the two first oil baffle plates and the two second oil baffle plates are matched to form an oil storage cavity used for containing the meshing position of the two gears. An oil spraying hole and an oil discharging hole are formed in the first oil baffle plate or / and the second oil baffle plate. It can be guaranteed that meshing gears are fully lubricated and cooled, meanwhile, oil mist generated when the gears stir lubricating oil can be reduced, power consumption is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of mechanical transmission technology, and more specifically, to an oil injection lubrication device and a gearbox. Background Technology

[0002] With the development of the transmission equipment manufacturing industry, the performance requirements for transmission equipment are becoming increasingly stringent, especially the efficiency requirements for high-speed gearboxes. According to the AGMA6011 standard, when the gear linear speed is high, gear wind resistance power loss accounts for nearly half of the total power consumption of the gearbox. Among these, wind resistance loss is mainly the power consumption generated by the gear agitating the oil mist. The higher the gear linear speed, the greater the concentration of oil mist that the gear agitates, and the greater the power consumption of the gear.

[0003] The inventors discovered that the high-speed gearboxes of the relevant technology have at least the following drawbacks: High wind resistance loss, high gear power consumption, and high operating costs. Summary of the Invention

[0004] The objectives of this invention include, for example, providing an oil injection lubrication device and a gearbox that can ensure sufficient lubrication and cooling of meshing gears, while reducing oil mist generated by gear agitation of lubricating oil, reducing power consumption, and reducing operating costs.

[0005] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides an oil injection lubrication device, comprising: Two first oil baffles and two second oil baffles are arranged at intervals in a first direction, and two second oil baffles are arranged at intervals in a second direction that is at an angle to the first direction. The two first oil baffles and two second oil baffles are arranged alternately and connected end to end. The two first oil baffles and two second oil baffles cooperate to form an oil storage cavity for accommodating the meshing position of two gears. The first oil baffle and / or the second oil baffle are provided with an oil injection hole and an oil drain hole.

[0006] In an optional embodiment, the two first oil baffles are arranged at an included angle.

[0007] In an optional embodiment, each of the first oil baffles is set at an angle to a preset plane, and the distance between the two first oil baffles and the preset plane gradually decreases or increases in the same direction; the preset plane coincides with the plane determined by the central axis of the two gears.

[0008] In an optional embodiment, the first oil baffle has two first sides spaced apart in the first direction and two second sides spaced apart in the second direction, the two first sides and the two second sides are arranged alternately and connected end to end, at least one of the two first sides is provided with an inward folded edge; the two second sides are respectively connected to the two second oil baffles.

[0009] In an optional embodiment, the second oil baffle has a clearance notch on its side in the first direction for accommodating the axle of the gear.

[0010] In an optional embodiment, each of the two first oil baffles is provided with an oil injection hole.

[0011] In an optional embodiment, both of the second oil baffles are provided with oil drain holes.

[0012] In an optional embodiment, the oil injection lubrication device further includes an oil injection pipe, which is installed on the outside of the first oil baffle plate; the first oil baffle plate is provided with a plurality of oil injection holes arranged at intervals, and the oil injection pipe is simultaneously connected to the plurality of oil injection holes.

[0013] In a second aspect, the present invention provides a gearbox, the gearbox comprising: The oil spraying lubrication device described in any of the foregoing embodiments.

[0014] In an optional embodiment, the gearbox further includes a first gear and a second gear, the first gear and the second gear meshing, the outer diameter of the first gear being smaller than the outer diameter of the second gear; two first oil baffles are respectively located on the radial sides of the meshing line of the first gear and the second gear, and two second oil baffles are respectively located on the axial sides of the meshing line of the first gear and the second gear.

[0015] The beneficial effects of the embodiments of the present invention include, for example: The oil spraying lubrication device provided in this embodiment cooperates with two meshing gears. After the oil spraying lubrication device and the two gears are assembled, the meshing position of the two gears is located in the oil reservoir. During operation, lubricating oil is sprayed into the oil reservoir from the spray nozzle, and the oil reservoir is basically filled with lubricating oil. The two gears agitate the lubricating oil in the oil reservoir, achieving lubrication and cooling through the lubricating oil. The lubricating oil involved in lubrication and cooling can be discharged from the drain hole in a timely manner, and new lubricating oil continuously enters, making it difficult for the lubricating oil temperature in the oil reservoir to rise and preventing the generation of oil mist. At the same time, since the lubricating oil is concentrated in the oil reservoir, the amount of lubricating oil agitated by the gears is small, and the amount of oil mist generated is small. In addition, the two second baffles can restrict the axial flow of oil mist, reducing the amount of oil mist outside the gears entering the oil reservoir axially from the gear edges. This results in a low oil mist concentration in the oil reservoir, low wind resistance, and low power consumption of the gears. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the oil injection lubrication device provided in this embodiment; Figure 2 This is a first-view schematic diagram of the application structure of the oil injection lubrication device provided in this embodiment; Figure 3 This is a second-view schematic diagram of the application structure of the oil injection lubrication device provided in this embodiment.

[0018] icon: 001-Preset plane; 002-Oil reservoir; 100-First oil baffle; 110-Inward folded edge; 120-Injection hole; 200-Second oil baffle; 210-Oil drain hole; 220-Avoidance notch; 300-Injection pipe; 400-First gear; 500-Second gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0025] Please refer to Figure 1 This embodiment provides an oil injection lubrication device, which includes two first oil baffles 100 and two second oil baffles 200. The two first oil baffles 100 are arranged at intervals in a first direction, and the two second oil baffles 200 are arranged at intervals in a second direction having an angle with the first direction. The two first oil baffles 100 and the two second oil baffles 200 are arranged alternately and connected end to end. The two first oil baffles 100 and the two second oil baffles 200 cooperate to form an oil storage cavity 002 for accommodating the meshing position of two gears. The first oil baffles 100 and / or the second oil baffles 200 are provided with an oil injection hole 120 and an oil discharge hole 210.

[0026] As described above, the working principle of the oil injection lubrication device provided in this embodiment is as follows: The oil injection lubrication device works in conjunction with two meshing gears. After installation, the meshing position of the two gears is located in the oil reservoir 002. During gearbox operation, lubricating oil can be sprayed into the oil reservoir 002 through the injection port 120, essentially filling it. The two gears agitate the lubricating oil in the reservoir 002, achieving lubrication and cooling. The lubricating oil used for lubrication and cooling is promptly discharged from the drain port 210, allowing for a continuous influx of new lubricating oil. This prevents the lubricating oil temperature in the reservoir 002 from rising and reduces the generation of oil mist. Simultaneously, because the lubricating oil is concentrated in the reservoir 002, the amount of lubricating oil agitated by the gears is small, resulting in less oil mist. Furthermore, the two second baffles restrict the axial flow of oil mist, reducing the axial entry of external oil mist from the gear edges into the reservoir 002. This results in a low oil mist concentration, low wind resistance, and low power consumption of the gears.

[0027] The following embodiments illustrate the details of the oil injection lubrication device of this application by way of example.

[0028] Please combine Figure 1In this embodiment, optionally, the oil injection lubrication device includes two first oil baffles 100, two second oil baffles 200, and two oil injection pipes 300. The two first oil baffles 100 are arranged at intervals in a first direction, and the two second oil baffles 200 are arranged at intervals in a second direction perpendicular to the first direction. The two first oil baffles 100 and two second oil baffles 200 are arranged alternately and connected end-to-end, forming an oil reservoir 002 to accommodate the meshing position of two gears. The two oil injection pipes 300 are fixedly connected to the two first oil baffles 100 respectively. Each of the two first oil baffles 100 is provided with an oil injection hole 120, and the oil injection pipe 300 communicates with the corresponding oil injection hole 120. Each of the two second oil baffles 200 is provided with an oil drain hole 210. It should be understood that both the oil injection hole 120 and the oil drain hole 210 communicate with the oil reservoir 002.

[0029] Optionally, the two first oil baffles 100 are arranged at an angle. For example, in one embodiment, each first oil baffle 100 is arranged at an angle. Specifically, each first oil baffle 100 is arranged at an angle with a preset plane 001. The distance between the two first oil baffles 100 and the preset plane 001 gradually decreases or increases in the same direction. The preset plane 001 coincides with the plane determined by the central axis of the two gears.

[0030] Please combine Figure 2 and Figure 3 In some embodiments, the angles between the two first oil baffles 100 and the preset plane 001 can be set to be the same, that is, the two first oil baffles 100 are arranged in a mirror-symmetric manner with respect to the preset plane 001, which facilitates installation and allows for better engagement with the two gears. For example, the angle between the first oil baffle 100 and the preset plane 001 is α, and the value of α can be between 15° and 55°, that is, the value of α can be 15°, 35°, or 55°, etc. This design can increase the area of ​​the oil storage chamber 002, allowing the lubricating oil to fully contact the gears, improving the lubrication and cooling effects, and can also reduce the gear oil churning effect, making it less likely to generate oil mist, thereby reducing wind resistance.

[0031] Optionally, the first oil baffle 100 has two first sides spaced apart in a first direction and two second sides spaced apart in a second direction. The two first sides and the two second sides are arranged alternately and connected end to end. Each of the two first sides is provided with an inwardly folded edge 110, that is, each first side is provided with an inwardly folded edge 110 that folds into the oil storage cavity 002. The two second sides are respectively connected to the two second oil baffles 200. When the two first oil baffles 100 are engaged with the two gears, the two inwardly folded edges 110 on both sides of each first oil baffle 100 are engaged with the two gears respectively, which can scrape off the lubricating oil carried out by the gears, allowing the lubricating oil to enter the oil storage cavity 002, so that the oil involved in lubrication can be discharged from the oil drain hole 210 in a timely manner. In addition, it can reduce the lubricating oil carried out by the gears, reduce the contact time between the gears and the heated lubricating oil, and reduce the high-temperature lubricating oil adhering to the outside of the gears, thereby reducing the oil mist generated by the gears stirring the oil. Meanwhile, due to the design of the inward folded edge 110, the distance between the first oil baffle 100 and the gear can be increased, the space of the oil storage chamber 002 can be increased, and the oil storage chamber 002 can store a sufficient amount of lubricating oil, thereby satisfying the lubrication and cooling effects.

[0032] It should be understood that multiple oil injection holes 120 can be provided on the first oil baffle 100. The multiple oil injection holes 120 can be arranged at intervals, for example, the multiple oil injection holes 120 can be evenly spaced in the first direction. The oil injection pipe 300 is fixedly connected to the first oil baffle 100 and is simultaneously connected to the multiple oil injection holes 120. The design of multiple oil injection holes 120 can evenly spray lubricating oil into the oil reservoir 002, thereby ensuring full contact between the gear and the lubricating oil and improving the cooling and lubrication effect.

[0033] It should be understood that the first oil baffle 100 and the gear are in clearance fit, and there will be no friction between the first oil baffle 100 and the gear, so they are not easily worn or damaged.

[0034] In this embodiment, optionally, each second oil baffle 200 may be provided with multiple oil drain holes 210 on its side to improve oil draining efficiency. The second side of the first oil baffle 100 may be attached to the surface of the second oil baffle 200, and the two may be welded together, resulting in high sealing performance and preventing lubricating oil from leaking from the connection point.

[0035] Optionally, the second oil baffle 200 has a clearance notch 220 on one side in the first direction. The clearance notch 220 can be an arc-shaped groove. When the oil injection lubrication device is engaged with the gear, the clearance notch 220 can engage with the axle of the pinion to avoid interference. It can also increase the contact area between the second oil baffle 200 and the end face of the pinion, thereby improving the axial blocking effect of the second oil baffle 200 on oil mist.

[0036] It should be understood that in some embodiments, the injection port 120 may also be provided on the second baffle plate 200, and the drain port 210 may also be provided on the first baffle plate 100. Alternatively, the first baffle plate 100 and the second baffle plate 200 may both be provided with injection ports 120, and the first baffle plate 100 and the second baffle plate 200 may both be provided with drain ports 210, etc.

[0037] In addition, the oil drain hole 210 can be provided on the side of the first oil baffle 100 or the second oil baffle 200, and the oil drain hole 210 can be formed by the inner part of the first oil baffle 100 or the second oil baffle 200 arching outward.

[0038] The oil spraying lubrication device provided in this embodiment can not only ensure that the gears are adequately lubricated and cooled, thus improving the utilization rate of lubricating oil, but also reduce the oil mist generated by the gears agitating the lubricating oil, thereby reducing wind resistance and improving the transmission efficiency of the gearbox.

[0039] Please combine Figures 1-3 This embodiment also provides a gearbox, which includes a first gear 400, a second gear 500, and the oil injection lubrication device described in the above embodiment. The first gear 400 and the second gear 500 mesh, and the outer diameter of the first gear 400 is smaller than the outer diameter of the second gear 500. The first gear 400 can be referred to as a pinion or a high-speed gear, and the second gear 500 can be referred to as a large gear or a low-speed gear. Torque can be transmitted from the first gear 400 to the second gear 500. Two first oil baffles 100 are located on the radial sides of the meshing line of the first gear 400 and the second gear 500, that is, the upper and lower sides in the figure. Two second oil baffles 200 are located on the axial sides of the meshing line of the first gear 400 and the second gear 500, that is, the left and right sides in the figure. Simultaneously, the side with the larger distance between the two first oil baffles 100 engages with the second gear 500, and correspondingly, the side with the smaller distance engages with the two first gears 400. In other words, when the oil injection lubrication device engages with the two gears, the distance between the two first oil baffles 100 gradually increases from the first gear 400 towards the second gear 500. Parts of the first gear 400 and the second gear 500 are located between the two second oil baffles 200. The clearance notch 220 on the second oil baffle 200 engages with the axle of the first gear 400 to avoid interference. It should be understood that the second oil baffle 200, the first gear 400, and the second gear 500 can have a clearance fit to reduce wear.

[0040] It should be noted that the oil injection lubrication device can be positioned by the oil injection pipe 300 or by structural components such as the bracket inside the gearbox, as long as the position of the oil injection lubrication device relative to the first gear 400 and the second gear 500 is fixed.

[0041] In the gearbox provided in this embodiment, lubricating oil enters through the oil injection pipe 300, is sprayed out through the oil injection hole 120, and contacts the gears, ensuring sufficient lubrication and cooling for the first gear 400 and the second gear 500. During the rotation of the first gear 400 and the second gear 500, the first baffle plate 100 scrapes off the lubricating oil on the first gear 400 and the second gear 500, reducing the oil mist concentration in the gearbox. Two second baffle plates 200 are located near the end faces of the first gear 400 and the second gear 500, blocking axial lubricating oil and oil mist, preventing oil mist from being drawn axially into the oil storage chamber 002. Simultaneously, the lower part of the second baffle plate 200 is designed with an oil drain hole 210, allowing the lubricating oil collected in the oil storage chamber 002 to flow out smoothly, preventing hot lubrication from participating in lubrication and product oil mist again, thus ensuring gear lubrication and cooling while improving gearbox efficiency.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An oil injection lubrication device, characterized in that, include: Two first oil baffles (100) and two second oil baffles (200) are arranged at intervals in a first direction, and two second oil baffles (200) are arranged at intervals in a second direction having an angle with the first direction. The two first oil baffles (100) and two second oil baffles (200) are arranged alternately and connected end to end. The two first oil baffles (100) and two second oil baffles (200) cooperate to form an oil reservoir (002) for accommodating the meshing position of two gears. The first oil baffle (100) and / or the second oil baffle (200) are provided with an oil injection hole (120) and an oil drain hole (210).

2. The oil injection lubrication device according to claim 1, characterized in that: The two first oil baffles (100) are set at an angle.

3. The oil injection lubrication device according to claim 1, characterized in that: Each of the first oil baffles (100) is set at an angle to the preset plane (001), and the distance between the two first oil baffles (100) and the preset plane (001) gradually decreases or increases in the same direction; the preset plane (001) coincides with the plane determined by the central axis of the two gears.

4. The oil injection lubrication device according to claim 1, characterized in that: The first oil baffle (100) has two first sides arranged at intervals in the first direction and two second sides arranged at intervals in the second direction. The two first sides and the two second sides are arranged alternately and connected end to end. At least one of the two first sides is provided with an inward folded edge (110). The two second sides are respectively connected to the two second oil baffles (200).

5. The oil injection lubrication device according to claim 1, characterized in that: The second oil baffle (200) has a clearance notch (220) on its side in the first direction for accommodating the axle of the gear.

6. The oil injection lubrication device according to any one of claims 1-5, characterized in that: Both of the first oil baffles (100) are provided with oil injection holes (120).

7. The oil injection lubrication device according to claim 6, characterized in that: Both of the second oil baffles (200) are provided with oil drain holes (210).

8. The oil injection lubrication device according to claim 6, characterized in that: The oil injection lubrication device also includes an oil injection pipe (300), which is installed on the outside of the first oil baffle (100); the first oil baffle (100) is provided with a plurality of oil injection holes (120) arranged at intervals, and the oil injection pipe (300) is connected to the plurality of oil injection holes (120) at the same time.

9. A gearbox, characterized in that, The gearbox includes: The oil spraying lubrication device according to any one of claims 1-8.

10. The gearbox according to claim 9, characterized in that: The gearbox further includes a first gear (400) and a second gear (500), the first gear (400) and the second gear (500) meshing, the outer diameter of the first gear (400) being smaller than the outer diameter of the second gear (500); two first oil baffles (100) are respectively located on the radial sides of the meshing line of the first gear (400) and the second gear (500), and two second oil baffles (200) are respectively located on the axial sides of the meshing line of the first gear (400) and the second gear (500).

Images