A gear reduction box lubrication system

Abstract

The utility model discloses a gear reduction gearbox lubricating system, including the reduction gearbox main part, the reduction gearbox main part is buckled with the cover body, and the reduction gearbox main part is installed with gear pair in the inside, the bottom one side of reduction gearbox main part is equipped with the hole of exhausting, and the hole of exhausting is internally threadedly connected with the plunger, the top of hole of exhausting is equipped with the oil hole, and the height of oil hole is greater than the height of gear pair lowest point, the outside installation of oil hole has the filter, and the filter export is connected with the nozzle through the oil pipe, and the oil pump is installed on the oil pipe, and the nozzle is embedded in the cover body, and the jet mouth of nozzle sets up to the gear face in the reduction gearbox main part. The utility model combines the simple reliability of splashing lubrication with the high efficient precision of forced injection lubrication, and is equipped with the special filter system and provides the full, clean lubrication for the inside parts of the box.

Description

Technical Field

[0001] This utility model relates to a gear reducer lubrication system, belonging to the technical field of lubrication systems. Background Technology

[0002] Gear reducers are mechanical devices that use gear transmission at various stages to achieve speed reduction. If the friction and wear of the gears in a gear reducer are not lubricated, it can easily cause damage to the mechanical equipment. Therefore, lubrication of the reducer is an important condition to ensure the normal operation of the gears and bearings.

[0003] Traditional gearbox lubrication uses a single lubrication method, such as splash lubrication or jet lubrication.

[0004] The lubrication effect of splash lubrication relies entirely on the agitation of the gears. However, at the gear meshing initiation point above the oil surface, on the tooth surfaces of high-speed gears, and on bearings in certain specific locations, a stable and sufficient pressure oil film may not be formed, easily leading to problems such as dry friction and pitting. In traditional splash lubrication, the lubricating oil circulates, carrying metal particles generated by gear and bearing wear to the surfaces of various friction pairs, forming abrasive wear and accelerating the wear of parts.

[0005] Jet lubrication involves directly pressurizing and spraying oil through a nozzle using an oil pump. However, insufficient lubrication can occur when the oil pump lacks sufficient oil or the oil supply is interrupted, which can easily damage gears and bearings.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] This invention addresses the shortcomings of the prior art by providing a gear reducer lubrication system that combines the simplicity and reliability of splash lubrication with the high efficiency and precision of forced jet lubrication. It is also equipped with a dedicated filtration system to provide sufficient and clean lubrication for the internal components of the gear reducer.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: A gear reducer lubrication system includes a gear reducer body, a cover fastened to the gear reducer body, and a gear pair installed inside the gear reducer body; a drain hole is provided on one side of the bottom of the gear reducer body, and a plunger is threaded into the drain hole. An oil outlet is provided above the drain hole, and the height of the oil outlet is greater than the height of the lowest point of the gear pair. A filter is installed on the outside of the oil outlet. The filter outlet is connected to the nozzle through an oil pipe. An oil pump is installed on the oil pipe. The nozzle is embedded in the cover body, and the nozzle's spray port is set towards the gear surface inside the gearbox body.

[0009] Furthermore, the filter includes a threaded fixed seat and a filter housing, with the fixed seat having a hollow interior for connecting the oil outlet hole to the inner cavity of the filter housing.

[0010] Furthermore, the mounting base is fixed to the outer wall of the gearbox body by fastening screws. The mounting base is provided with a flange for fastening screws to pass through on the side near the gearbox body, and a sealing ring is installed between the flange and the outer wall of the gearbox body.

[0011] Furthermore, a hollow tubular filter element is installed inside the filter housing, with an open end and a closed end at each end.

[0012] Furthermore, the open end of the filter element is connected to the filter shell, and a sealing ring is provided at the connection. The closed end of the filter element is connected to the fixed seat by a spring.

[0013] Furthermore, the filter housing has a connection hole A at the end near the fixed base.

[0014] Furthermore, connection hole A is connected to the inner cavity of the filter element, and connection hole A is used for the insertion and fixing of the oil pipe end.

[0015] Furthermore, the cover body is provided with mounting holes for nozzle installation.

[0016] Furthermore, the mounting hole is a threaded stepped hole, and the outer end of the nozzle is provided with a connection hole B, which is used for the insertion and fixing of the oil pipe end.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This invention combines the simplicity and reliability of splash lubrication with the high efficiency and precision of forced jet lubrication. It also uses an integrated filtration system to ensure oil quality and cleanliness, greatly reducing the impurity content in the lubricating oil. This provides a clean working environment for all oil-dependent components such as gears and bearings, fundamentally reducing abrasive wear and significantly extending the overall lifespan of the gearbox and the service life of the lubricating oil.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a diagram showing the installation of the filter; Figure 3 This is a schematic diagram of nozzle installation.

[0020] In the diagram, 1-gearbox body, 11-drain hole, 12-oil outlet; 2-cover, 21-mounting hole; 3-plunger; 4-filter, 41-fixed seat, 42-filter housing, 43-filter element, 44-spring, 45-connection hole A; 5-fastening screw; 6-oil pump; 7-nozzle, 71-connection hole B. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0022] like Figures 1-3 As shown in the figure, this utility model provides a gear reducer lubrication system, including a reducer body 1, a cover 2 fastened to the reducer body 1, and a gear pair installed inside the reducer body 1.

[0023] The bottom side of the gearbox body 1 is provided with a drain hole 11, and a plunger 3 is threaded inside the drain hole 11. The drain hole 11 and the plunger 3 are used to completely drain the old lubricating oil during maintenance.

[0024] An oil outlet 12 is provided above the drain hole 11. The height of the oil outlet 12 is greater than the height of the lowest point of the gear pair, so that part of the outer edge of the gear pair is always immersed in the lubricating oil. During the rotation and meshing process of the gear pair, the lubricating oil splashes onto the inner wall of the housing and various lubrication parts, realizing splash lubrication.

[0025] A filter 4 is installed on the outside of the oil outlet 12. The outlet of the filter 4 is connected to the nozzle 7 through an oil pipe. An oil pump 6 is installed on the oil pipe. The nozzle 7 is embedded in the cover 2, and the spray port of the nozzle 7 is set towards the gear surface inside the gearbox body 1. The oil pump 6 pressurizes the filtered lubricating oil and sprays it through the nozzle 7 to achieve spray lubrication of the gear pair.

[0026] The filter 4 includes a threaded fixed seat 41 and a filter shell 42. The fixed seat 41 is hollow inside, which is used to connect the oil outlet 12 to the inner cavity of the filter shell 42.

[0027] The mounting base 41 is fixed to the outer wall of the gearbox body 1 by fastening screws 5. The mounting base 41 is provided with a flange for the fastening screws 5 to pass through on the side near the gearbox body 1. A sealing ring is installed between the flange and the outer wall of the gearbox body 1 to ensure the seal between the filter 4 and the gearbox body 1.

[0028] A hollow tubular filter element 43 is installed inside the filter housing 42. The filter element 43 has an open end and a closed end at its two ends. The open end of the filter element 43 is connected to the filter housing 42, and a sealing ring is provided at the connection. The closed end of the filter element 43 is connected to the fixed base 41 by a spring 44. The spring force of the spring 44 presses the filter element 43 against the sealing ring to form an effective seal.

[0029] The filter housing 42 is provided with a connection hole A45 at the end near the fixing base 41. The connection hole A45 is connected to the inner cavity of the filter element 43 and is used for the insertion and fixing of the oil pipe end.

[0030] The cover 2 is provided with a mounting hole 21 for mounting the nozzle 7. The mounting hole 21 is a threaded stepped hole. The outer end of the nozzle 7 is provided with a connecting hole B71, which is used for inserting and fixing the end of the oil pipe.

[0031] The specific working principle of this utility model is as follows: This invention combines a dual lubrication mechanism of splash lubrication and forced jet lubrication, and is equipped with a dedicated filtration system to provide sufficient and clean lubrication for the internal components.

[0032] Splash lubrication: The gears themselves rotate and agitate the lubricating oil inside the gearbox body 1, causing it to splash and provide basic lubrication and cooling for the gear surfaces, bearings, etc.

[0033] Forced jet lubrication: Lubricating oil is drawn from the oil outlet 12 of the gearbox body 1. The lubricating oil flows through the filter 4 for fine filtration to remove wear particles and impurities. The oil pump 6 pressurizes the filtered lubricating oil and sprays it precisely and at high pressure onto the gear meshing surface through the nozzle 7 to ensure an oil film on the meshing surface and remove heat from the meshing area.

[0034] Maintenance: The lubricating oil can be replaced through the drain hole 11; the filter element 43 can be replaced or cleaned by removing the filter 4.

[0035] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A lubricating system for a gear reduction box, comprising a reduction box body (1) on which a cover (2) is fastened, and a gear pair is installed inside the reduction box body (1), characterized in that: The bottom side of the gearbox body (1) is provided with a drain hole (11), and a plunger (3) is threaded inside the drain hole (11). An oil outlet (12) is provided above the drain hole (11), and the height of the oil outlet (12) is greater than the height of the lowest point of the gear pair. A filter (4) is installed on the outside of the oil outlet (12). The outlet of the filter (4) is connected to the nozzle (7) through an oil pipe. An oil pump (6) is installed on the oil pipe. The nozzle (7) is embedded in the cover (2). The spray port of the nozzle (7) is set towards the gear surface inside the gearbox body (1). The filter (4) includes a threaded fixed seat (41) and a filter shell (42). The fixed seat (41) is hollow inside and is used to connect the oil outlet (12) with the inner cavity of the filter shell (42). A hollow tube filter element (43) is installed inside the filter shell (42). The two ends of the filter element (43) form an open end and a closed end, respectively. The open end of the filter element (43) is connected to the filter shell (42), and a sealing ring is provided at the connection. The closed end of the filter element (43) is connected to the fixed seat (41) through a spring (44). A connection hole A (45) is provided in the end of the filter shell (42) near the fixed seat (41). The connection hole A (45) is connected to the inner cavity of the filter element (43). The connection hole A (45) is used for the insertion and fixing of the oil pipe end.

2. A lubrication system for a gear reduction box as claimed in claim 1, characterised in that: The mounting base (41) is fixed to the outer wall of the gearbox body (1) by fastening screws (5). The mounting base (41) has a flange on the side near the gearbox body (1) for the fastening screws (5) to pass through. A sealing ring is installed between the flange and the outer wall of the gearbox body (1).

3. A lubrication system for a gear reduction box as claimed in claim 1, characterized in that: The cover (2) is provided with mounting holes (21) for mounting nozzles (7).

4. A lubrication system for a gear reduction box as claimed in claim 3, characterised in that: The mounting hole (21) is a threaded stepped hole, and the outer end of the nozzle (7) is provided with a connecting hole B (71), which is used for the insertion and fixing of the oil pipe end.

Images