Gearbox scattered oil collecting and lubricating structure

Abstract

The utility model provides a scattered oil collecting and lubricating structure of a gearbox, and aims to solve the problems of low cleanliness of lubricating oil and insufficient local lubrication in the prior art. The structure comprises a box base, a plurality of oil collecting grooves are formed in the inner side of the top combination surface of the box base, clean lubricating oil is introduced into an oil way through the oil collecting grooves in an overflow mode and evenly distributed to the two ends of a bearing installation groove through flow dividing branches, and effective lubrication of the double-inner-tapered-roller bearing is achieved. A magnet is arranged at the bottom of the oil collecting groove and used for adsorbing metal particles in lubricating oil, and the lubricating cleanliness is improved. By means of the design, efficient, clean and stable lubrication and structure supporting are achieved, the device is suitable for the application scene of the high-speed heavy-load gearbox, the operation reliability of equipment is remarkably improved, and the service life of the equipment is remarkably prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gearboxes, specifically to a gearbox oil collection and lubrication structure. Background Technology

[0002] In industrial applications, gearboxes are one of the core components in many mechanical transmission systems. Their main function is to transmit power from the input shaft to the output shaft through a series of gears, potentially achieving speed adjustment and torque conversion in the process. However, in actual operation, due to the high-speed rotation of gears and heavy-load working conditions, gears and bearings, as well as other critical components, face serious wear risks. Therefore, an effective lubrication system is crucial for ensuring the efficient and reliable operation of the gearbox.

[0003] Traditional gearbox lubrication methods mainly include oil immersion lubrication and oil spraying lubrication. Oil immersion lubrication relies on the rotation of gears to naturally carry lubricating oil, forming an oil film that covers the friction surfaces; while oil spraying lubrication uses a pumping system to directly spray lubricating oil onto the gear meshing area or bearing components. Although both methods can meet basic lubrication requirements, they also have some shortcomings:

[0004] Oil immersion lubrication: Although the structure is simple, it is difficult to provide enough lubricating oil in certain specific locations (such as high-speed rotating pinions or bearings far from the oil sump), which can easily lead to poor local lubrication.

[0005] Oil injection lubrication: Although it can precisely control the oil supply, it requires an additional pumping device, which increases the complexity of the system and maintenance costs.

[0006] Furthermore, during long-term operation, lubricating oil inevitably mixes with tiny metal particles or other impurities. If these impurities are not removed in time, they will cause serious damage to the precision components inside the gearbox. This is especially true for internal tapered roller bearings operating under high-speed, heavy-load conditions, where even the smallest foreign matter can lead to premature failure. At the same time, traditional lubrication designs often neglect the management of the lubricating oil's cleanliness, lacking effective means to remove contaminated lubricating oil, resulting in decreased lubrication performance and shortened equipment lifespan. Utility Model Content

[0007] The main objective of this invention is to provide a gearbox oil collection and lubrication structure to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: multiple bearing mounting slots are provided on the gearbox housing, multiple oil collecting slots are fixed on the inner side of the mating surface at the top of the housing, the oil collecting slots are located between two adjacent bearing mounting slots, and an oil passage is provided on the mating surface between the oil collecting slots and the bearing mounting slots to guide the lubricating oil in the oil collecting slots into the bearing mounting slots.

[0009] Preferably, one end of the oil circuit is connected to the oil collection tank, and the other end is connected to both ends of the bearing mounting groove through a branch circuit.

[0010] Preferably, a magnet is provided at the bottom of the oil collection tank to attract metal particles deposited in the oil collection tank.

[0011] Preferably, there is a drop between the bottom of the oil passage and the bottom of the oil collection tank, so that the lubricating oil in the oil collection tank can enter the oil passage by overflow.

[0012] Preferably, a support base is fixed at the bottom of the housing, and the support base is connected to the inner wall of the housing through stiffening plates. A bearing seat is fixed inside the support base for mounting the output shaft.

[0013] Preferably, an oil reservoir is provided at the output shaft meshing gear on the support base, and the oil reservoir stores lubricating oil for gear meshing lubrication.

[0014] Preferably, the oil collection trough has an opening at the top for collecting dispersed lubricating oil during gearbox operation.

[0015] This utility model provides a gearbox oil collection and lubrication structure, which has the following advantages:

[0016] 1. Utilizing the splashing effect generated by gear rotation, lubricating oil is collected in the oil collection tank for secondary use, avoiding lubricating oil waste; the lubricating oil enters the main oil circuit through overflow, which can naturally separate large particles of impurities and improve lubrication cleanliness; it is especially suitable for lubrication needs under high-speed and heavy-load conditions, and significantly improves the lubrication efficiency of bearings and gears.

[0017] 2. A branch line is provided at the end of the main oil circuit, which is connected to both ends of the bearing mounting groove to achieve synchronous lubrication of the double internal tapered roller bearing; the lubricating oil enters the bearing area from both ends to ensure that a stable oil film is formed between the rolling elements and the raceway, effectively reducing frictional temperature rise; uniform oil supply can reduce local wear, prevent premature bearing failure, and extend the overall service life of the equipment.

[0018] 3. A magnet is installed at the bottom of the oil collection tank to adsorb metal particles deposited in the lubricating oil; this reduces the risk of metal impurities entering the bearing and gear meshing areas, preventing scratches or jamming; the magnet adsorbed material can be checked and cleaned regularly, which helps to judge the internal wear condition of the equipment and facilitates condition monitoring and maintenance. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is an axial side view of the internal structure of the housing of this utility model;

[0021] Figure 2 This is a top view of the housing of this utility model;

[0022] Figure 3 This is a sectional view of the oil collection tank of this utility model;

[0023] In the diagram: 1. Housing base; 2. Mating surface; 3. Oil collection groove; 4. Bearing mounting groove; 5. Oil passage; 6. Support base; 7. Rib plate; 8. Oil storage groove; 9. Bearing seat; 10. Magnet. Detailed Implementation

[0024] like Figures 1-3 As shown, a gearbox oil collection and lubrication structure includes multiple bearing mounting slots 4 on a gearbox housing 1. Multiple oil collecting grooves 3 are fixed to the inner side of the mating surface 2 at the top of the housing 1, with each groove located between adjacent bearing mounting slots 4. An oil passage 5 is provided on the mating surface 2 between the oil collecting groove 3 and the bearing mounting slot 4 to guide the lubricating oil in the oil collecting groove 3 into the bearing mounting slot 4. The oil collecting groove 3 has an opening at the top for collecting dispersed lubricating oil during gearbox operation.

[0025] During gearbox operation, the gear shaft rotates at high speed, causing lubricating oil to splash. Some of the splashed lubricating oil settles at the bottom of the gearbox, while the rest is thrown against the cover or walls and falls back down. The designed oil collection groove 3, located inside the mating surface, effectively collects this splashed lubricating oil. The collected lubricating oil flows through the oil passage 5 to the various bearing mounting slots 4, providing continuous lubrication to the bearings. This method avoids problems such as uneven oil supply and insufficient lubrication that may occur with traditional lubrication methods.

[0026] Preferably, one end of the oil passage 5 is connected to the oil collection tank 3, and the other end is connected to both ends of the bearing mounting groove 4 through a branch line.

[0027] The bearings installed in the bearing mounting groove 4 are two opposing internal tapered roller bearings. To ensure that each gear is properly lubricated, the lubricating oil drawn from the oil passage 5 is diverted to both ends of the bearing mounting groove 4 to ensure that the lubricating oil enters each bearing.

[0028] Preferably, a magnet 10 is provided at the bottom of the oil collection tank 3 to adsorb metal particles deposited in the oil collection tank 3.

[0029] Wear and tear on the gearbox during long-term operation can produce metal particles. If these particles enter the bearing, they can cause damage. Magnet 10 can effectively attract these metal particles, and during maintenance and repair, removing magnet 10 will clean away the metal particles as well.

[0030] Preferably, there is a drop between the bottom of the oil passage 5 and the bottom of the oil collection tank 3, so that the lubricating oil in the oil collection tank 3 can enter the oil passage 5 by overflow.

[0031] Lubricating oil continuously flows into the oil collection tank 3 due to splashing. The lubricating oil first settles at the bottom of the tank, where metal particles or large impurities quickly settle due to gravity. Once the lubricating oil level rises to a certain height, the cleaner upper layer of lubricating oil enters the oil passage 5 through the overflow port. The oil passage 5 is positioned high above and to the side of the oil collection tank 3, creating a height difference to control the overflow.

[0032] Preferably, a support seat 6 is fixedly provided at the bottom of the housing 1. The support seat 6 is connected to the inner wall of the housing 1 by ribs 7. A bearing seat 9 is fixedly provided inside the support seat 6 for mounting the output shaft. An oil reservoir 8 is provided at the meshing gear of the output shaft on the support seat 6. The oil reservoir 8 stores lubricating oil for gear meshing lubrication.

[0033] In this example, the output shaft end is installed inside the housing 1 via bearing seat 9 and support seat 6. The support seat 6 and rib plate 7 can enhance the stability of the bearing seat 9 in supporting the output shaft end. At the same time, the oil reservoir 8 on the support seat 6 can directly supply oil to the gear meshing part of the output shaft, ensuring operational reliability.

[0034] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A gearbox oil collection and lubrication structure, comprising multiple bearing mounting slots (4) on the gearbox housing (1), characterized in that: Multiple oil collection grooves (3) are fixed on the inner side of the mating surface (2) at the top of the housing (1). The oil collection grooves (3) are located between two adjacent bearing mounting grooves (4). An oil passage (5) is provided on the mating surface (2) between the oil collection grooves (3) and the bearing mounting grooves (4) to guide the lubricating oil in the oil collection grooves (3) into the bearing mounting grooves (4).

2. The gearbox oil collection and lubrication structure according to claim 1, characterized in that: One end of the oil passage (5) is connected to the oil collection tank (3), and the other end is connected to both ends of the bearing mounting groove (4) through a branch line.

3. The gearbox oil collection and lubrication structure according to claim 1, characterized in that: A magnet (10) is provided at the bottom of the oil collection tank (3) to adsorb the metal particles deposited in the oil collection tank (3).

4. The gearbox oil collection and lubrication structure according to claim 1, characterized in that: There is a drop between the bottom of the oil passage (5) and the bottom of the oil collection tank (3) so that the lubricating oil in the oil collection tank (3) can enter the oil passage (5) by overflow.

5. The gearbox oil collection and lubrication structure according to claim 1, characterized in that: A support seat (6) is fixedly provided at the bottom of the housing (1). The support seat (6) is connected to the inner wall of the housing (1) by a rib plate (7) on its periphery. A bearing seat (9) is fixedly provided inside the support seat (6). The bearing seat (9) is used to install the output shaft.

6. The gearbox oil collection and lubrication structure according to claim 5, characterized in that: An oil reservoir (8) is provided at the output shaft meshing gear on the support base (6). The oil reservoir (8) stores lubricating oil for gear meshing lubrication.

7. The gearbox oil collection and lubrication structure according to claim 1, characterized in that: The oil collection trough (3) has an opening at the top for collecting dispersed lubricating oil during gearbox operation.

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