Lubricating mechanism for gear box of speed reducer

Abstract

The lubricating mechanism comprises the gearbox, an oil filling pipe is fixedly installed on the gearbox, an oil tank is fixedly installed above the oil filling pipe, a piston plate is installed in the oil filling pipe in a sliding mode, a first push rod is installed in the oil filling pipe in a sliding mode, and a second push rod is installed in the oil filling pipe in a sliding mode. A second push rod is slidably mounted in the first push rod, the end, away from the first push rod, of the second push rod is fixedly connected with the piston plate, a threaded rod is rotatably mounted in the oil injection pipe, a threaded pipe is rotatably mounted in the first push rod, and a mounting frame is fixedly mounted between the oil tank and the oil injection pipe; the mounting frame is fixedly connected with the oil tank and the oil injection pipe through the connecting pipes, the oil injection pipe is matched with the oil tank to achieve automatic oil injection operation in the gearbox, manpower input is reduced, and fixed-time, fixed-point and quantitative oil injection lubrication work on the gearbox is achieved under the action of the first push rod and the second push rod.

Description

Technical Field

[0001] This utility model relates to the field of gear lubrication technology, specifically a lubrication mechanism for a gearbox of a speed reducer. Background Technology

[0002] The main functions of a gearbox include speed reduction, torque increase, changing transmission direction, and power transmission. A gearbox converts high-speed, low-torque power into low-speed, high-torque power to meet different operational needs. During operation, friction occurs between the gears, leading to energy loss and gradual wear on the gear surfaces. Regular lubrication forms an oil film on the gear surfaces, effectively reducing direct contact between gears and thus lowering friction and wear.

[0003] In the existing technology, the lubricating oil in the gearbox needs to be added or replaced by the staff regularly, which is time-consuming and labor-intensive. In addition, manual addition of lubricating oil cannot remove or filter the impurities contained in the lubricating oil. The impurities contained in the lubricating oil can damage the operation of the gearbox. Therefore, we propose a lubrication mechanism for gearbox to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a lubrication mechanism for a gearbox of a speed reducer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lubrication mechanism for a gearbox of a reducer, comprising a gearbox, an oil injection pipe fixedly mounted on the gearbox, an oil tank fixedly mounted above the oil injection pipe, a piston plate slidably mounted inside the oil injection pipe, a first push rod slidably mounted inside the oil injection pipe, a second push rod slidably mounted inside the first push rod, the end of the second push rod away from the first push rod being fixedly connected to the piston plate, a threaded rod rotatably mounted inside the oil injection pipe, a threaded tube rotatably mounted inside the first push rod, and an oil tank and an oil injection pipe fixedly mounted together. The device includes a mounting bracket, which is fixedly connected to the oil tank and the oil injection pipe via connecting pipes. The connection port between the mounting bracket and the oil injection pipe is located between the piston plate and the valve plate. A mounting plate is rotatably mounted on the mounting bracket, and two sets of symmetrically distributed filter plates are movably engaged on the mounting plate. Each set of filter plates contains a filter screen. A first gear is sleeved on the mounting plate, and a first rack is slidably mounted inside the mounting bracket. The first rack meshes with the first gear. Two sets of symmetrically distributed movable frames are provided inside the mounting plate, and each set of movable frames is movably engaged with the corresponding filter plate.

[0006] As a further preferred embodiment of this technical solution, a fixing frame is fixedly installed inside the oil injection pipe, a valve plate is slidably sleeved on the fixing frame, and two sets of symmetrically distributed first springs are sleeved on the fixing frame. The two ends of the first springs are fixedly connected to the valve plate and the fixing frame, respectively. A retaining ring is fixedly installed inside the oil injection pipe, and the valve plate is movably engaged with the retaining ring.

[0007] As a further preferred embodiment of this technical solution, the threaded rod passes through the first push rod and is threadedly connected to the first push rod, the threaded tube passes through the second push rod and is threadedly connected to the second push rod, the threaded rod is provided with two sets of symmetrically distributed limiting grooves, the threaded tube is provided with two sets of symmetrically distributed limiting blocks, and the threaded tube is slidably sleeved with the threaded rod through the limiting blocks.

[0008] As a further preferred embodiment of this technical solution, the filter screen is provided with two sets of symmetrically distributed slots, the mounting bracket is slidably mounted with two sets of symmetrically distributed retaining rings, and a bidirectional screw is rotatably mounted inside the mounting bracket.

[0009] As a further preferred embodiment of this technical solution, the two sets of retaining rings are respectively fixedly connected to the mounting bracket via telescopic tubes, and the bidirectional screw passes through the two sets of retaining rings and is threadedly connected to the two sets of retaining rings respectively.

[0010] As a further preferred embodiment of this technical solution, both sets of movable frames are fixedly equipped with blocks, and the movable frames are slidably connected to the mounting plate through the blocks. Both sets of movable frames are fitted with second springs, and the two ends of the second springs are fixedly connected to the blocks and the mounting plate, respectively. Both sets of movable frames are fixedly equipped with second racks.

[0011] As a further preferred embodiment of this technical solution, a rotating rod is rotatably mounted inside the mounting plate, a second gear is sleeved on the rotating rod, the second gear is meshed with two sets of second racks respectively, and a torsion spring is sleeved on the rotating rod, the two ends of the torsion spring being fixedly connected to the second gear and the mounting plate respectively.

[0012] This utility model provides a lubrication mechanism for a gearbox of a speed reducer, which has the following advantages:

[0013] This invention enables automatic oil injection into the gearbox through the oil injection pipe and oil tank, reducing manual labor. Under the action of the first and second push rods, it achieves timed, fixed-point, and quantitative oil injection and lubrication of the gearbox, ensuring the good condition of the lubricating oil inside the gearbox, thereby enabling the gearbox to operate at high speed.

[0014] This utility model uses a mounting bracket, a mounting plate, and two sets of filter plates and filter screens on the mounting plate to filter the lubricating oil entering the oil injection pipe from the oil tank, preventing impurities in the lubricating oil from entering the oil injection pipe and affecting the normal operation of the subsequent gearbox. Furthermore, the two sets of movable brackets allow for flexible disassembly of the filter plates on the mounting plate, facilitating the timely replacement of the filter screens by the operators. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the oil injection pipe of this utility model;

[0017] Figure 3 This is a schematic diagram of the separation structure of the mounting bracket and mounting plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the separation structure of the mounting plate and the filter plate of this utility model;

[0019] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure of A in the middle.

[0020] In the diagram: 1. Gearbox; 2. Oil injection pipe; 3. Oil tank; 4. Fixing frame; 5. Valve plate; 6. First spring; 7. Retaining ring; 8. First push rod; 9. Second push rod; 10. Piston plate; 11. Threaded rod; 12. Limiting groove; 13. Threaded pipe; 14. Limiting block; 15. Mounting frame; 16. Mounting plate; 17. Filter plate; 18. Filter screen; 19. Slot; 20. Snap ring; 21. Telescopic tube; 22. Double-acting screw; 23. First gear; 24. First rack; 25. Moving frame; 26. Stop block; 27. Second spring; 28. Second rack; 29. ​​Rotating rod; 30. Second gear; 31. Torsion spring. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 and Figure 2As shown in this embodiment, a lubrication mechanism for a gearbox of a reducer includes a gearbox 1, an oil injection pipe 2 fixedly mounted on the gearbox 1, an oil tank 3 fixedly mounted above the oil injection pipe 2, a piston plate 10 slidably mounted inside the oil injection pipe 2, a first push rod 8 slidably mounted inside the oil injection pipe 2, a second push rod 9 slidably mounted inside the first push rod 8, and the end of the second push rod 9 away from the first push rod 8 fixedly connected to the piston plate 10. A threaded rod 11 is rotatably mounted inside the oil injection pipe 2, and a threaded tube 13 is rotatably mounted inside the first push rod 8. A mounting bracket 15 is fixedly mounted between the oil tank 3 and the oil injection pipe 2, and the mounting bracket 15 is connected to the oil tank 3 and the oil injection pipe 2 respectively via connecting pipes. The pipe 2 is fixedly connected. The connection port between the mounting bracket 15 and the oil injection pipe 2 is located between the piston plate 10 and the valve plate 5. A mounting plate 16 is rotatably mounted on the mounting bracket 15. Two sets of symmetrically distributed filter plates 17 are movably engaged on the mounting plate 16. Each set of filter plates 17 contains a filter screen 18. A first gear 23 is sleeved on the mounting plate 16. A first rack 24 is slidably mounted inside the mounting bracket 15. The first rack 24 meshes with the first gear 23. Two sets of symmetrically distributed movable brackets 25 are provided inside the mounting plate 16. Each set of movable brackets 25 is movably engaged with the corresponding filter plate 17. Lubricating oil is injected into the oil injection pipe 2 through the oil tank 3, and the oil injection pipe 2 is filled with lubricating oil. Under the action of the limiting groove 12 and the limiting block 14, the threaded rod 11 rotates. During the rotation of the threaded rod 11, the threaded tube 13 rotates under the action of the limiting groove 12 and the limiting block 14. Under the limiting action of the oil injection pipe 2 and the first push rod 8, the second push rod 9 slides. The second push rod 9 drives the piston plate 10 to slide in the oil injection pipe 2, pushing the lubricating oil in the oil injection pipe 2 towards the valve plate 5. A fixing frame 4 is fixedly installed in the oil injection pipe 2. The valve plate 5 is slidably sleeved on the fixing frame 4. Two sets of symmetrically distributed first springs 6 are sleeved on the fixing frame 4. The two ends of the first springs 6 are fixedly connected to the valve plate 5 and the fixing frame 4, respectively. A retaining ring 7 is fixedly installed in the oil injection pipe 2. The valve plate 5 and the retaining ring 7 move together. The door panel, pushed open by the lubricating oil, compresses or stretches the first spring 6. The lubricating oil passes through the valve plate 5 and enters the gearbox 1 to complete the automatic lubrication of the lubricating oil in the gearbox 1. Under the action of the retaining ring 7, the lubricating oil in the gearbox 1 cannot enter the oil injection pipe 2, thus avoiding contamination of the lubricating oil in the oil injection pipe 2. The threaded rod 11 passes through the first push rod 8 and is threadedly connected to the first push rod 8. The threaded tube 13 passes through the second push rod 9 and is threadedly connected to the second push rod 9. The threaded rod 11 has two sets of symmetrically distributed limiting grooves 12. The threaded tube 13 has two sets of symmetrically distributed limiting blocks 14. The threaded tube 13 is slidably sleeved with the threaded rod 11 through the limiting blocks 14.

[0023] like Figure 3 , Figure 4 and Figure 5As shown, the filter screen 18 has two sets of symmetrically distributed slots 19, and the mounting bracket 15 has two sets of symmetrically distributed retaining rings 20 slidably mounted on it. A bidirectional screw 22 is rotatably mounted inside the mounting bracket 15. The two sets of retaining rings 20 are fixedly connected to the mounting bracket 15 via telescopic tubes 21. The bidirectional screw 22 passes through the two sets of retaining rings 20 and is threadedly connected to each set. The two sets of retaining rings 20, in conjunction with the slots 19 and the telescopic tubes 21, complete the flow from the oil tank 3, filter screen 18, to the oil filling point. The sealed connection between pipes 2 ensures that the lubricating oil in the oil tank 3 can smoothly enter the oil filling pipe 2. During the process of the lubricating oil entering the oil filling pipe 2 from the oil tank 3, it always passes through the filter screen 18. The filter screen 18 filters out impurities adhering to the lubricating oil, preventing impurities from entering the gearbox 1 and affecting its normal operation. Both sets of movable frames 25 are fixedly equipped with stop blocks 26. The movable frames 25 are slidably connected to the mounting plate 16 through the stop blocks 26. Both sets of movable frames 25 are fitted with second springs. Spring 27, the two ends of the second spring 27 are fixedly connected to the stop block 26 and the mounting plate 16 respectively. The two sets of moving frames 25 are fixedly installed with second racks 28. The mounting plate 16 is rotatably installed with a rotating rod 29. The rotating rod 29 is sleeved with a second gear 30. The second gear 30 is meshed with the two sets of second racks 28 respectively. The rotating rod 29 is sleeved with a torsion spring 31. The two ends of the torsion spring 31 are fixedly connected to the second gear 30 and the mounting plate 16 respectively. After the filter screen 18 is used for a period of time, the two sets of retaining rings 20 release the restriction on the filter screen 18. Under the drive of the cylinder in the mounting frame 15, the first rack 24 slides. With the cooperation of the first gear 23, the mounting plate 16 is rotated and the two sets of filter plates 17 and filter screen 18 are switched. With the rotation of the rotating rod 29 on the mounting plate 16, the second gear 30 and the second rack 28 are cooperated to release the two sets of moving frames 25 from fixing the filter plate 17, so that the staff can disassemble the filter plate 17 for cleaning or replacement.

[0024] This utility model provides a lubrication mechanism for a gearbox of a speed reducer. The specific working principle is as follows: Lubricating oil is injected into the oil injection pipe 2 through the oil tank 3. The motor inside the oil injection pipe 2 drives the threaded rod 11 to rotate. During the rotation of the threaded rod 11, the threaded pipe 13 rotates under the action of the limiting groove 12 and the limiting block 14. Under the limiting action of the oil injection pipe 2 and the first push rod 8, the second push rod 9 slides. The second push rod 9 drives the piston plate 10 to slide in the oil injection pipe 2, pushing the lubricating oil in the oil injection pipe 2 towards the valve plate 5. The door plate pushed open by the lubricating oil compresses or stretches the first spring 6. After passing through the valve plate 5, the lubricating oil enters the gearbox 1, completing the automatic lubrication of the lubricating oil in the gearbox 1. Under the action of the retaining ring 7, the lubricating oil in the gearbox 1 cannot enter the oil injection pipe 2, avoiding contamination of the lubricating oil in the oil injection pipe 2. Two sets of retaining rings 20 cooperate with the retaining groove 19. The telescopic tube 21 completes the sealed connection between the oil tank 3, the filter screen 18 and the oil injection pipe 2, ensuring that the lubricating oil in the oil tank 3 can smoothly enter the oil injection pipe 2. The lubricating oil will always pass through the filter screen 18 during the process of entering the oil injection pipe 2 from the oil tank 3. The filter screen 18 filters the impurities attached to the lubricating oil and prevents the impurities from entering the gearbox 1 and affecting the normal operation of the gearbox 1. After the filter screen 18 has been used for a period of time, the two sets of retaining rings 20 will release the restriction on the filter screen 18, and the first rack 24 will slide under the drive of the cylinder in the mounting bracket 15. It will cooperate with the first gear 23 to complete the rotation of the mounting plate 16 and the conversion of the two sets of filter plates 17 and filter screen 18. Under the rotation of the rotating rod 29 on the mounting plate 16, the second gear 30 and the second rack 28 will release the two sets of moving brackets 25 from fixing the filter plate 17, making it convenient for the staff to disassemble the filter plate 17 for cleaning or replacement.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubrication mechanism for a gearbox of a speed reducer, characterized in that: The system includes a gearbox (1), on which an oil injection pipe (2) is fixedly installed. An oil tank (3) is fixedly installed above the oil injection pipe (2). A piston plate (10) is slidably installed inside the oil injection pipe (2). A first push rod (8) is slidably installed inside the oil injection pipe (2). A second push rod (9) is slidably installed inside the first push rod (8). The end of the second push rod (9) away from the first push rod (8) is fixedly connected to the piston plate (10). A threaded rod (11) is rotatably installed inside the oil injection pipe (2). A threaded pipe (13) is rotatably installed inside the first push rod (8). A mounting bracket (15) is fixedly installed between the oil tank (3) and the oil injection pipe (2). The mounting bracket (15) is connected to the oil tank (3) and the oil injection pipe (2) respectively via connecting pipes. The oil injection pipe (2) is fixedly connected. The connection port between the mounting bracket (15) and the oil injection pipe (2) is located between the piston plate (10) and the valve plate (5). The mounting bracket (15) is rotatably mounted with a mounting plate (16). Two sets of symmetrically distributed filter plates (17) are movably engaged on the mounting plate (16). Filter screens (18) are embedded in both sets of filter plates (17). A first gear (23) is sleeved on the mounting plate (16). A first rack (24) is slidably installed in the mounting bracket (15). The first rack (24) meshes with the first gear (23). Two sets of symmetrically distributed movable brackets (25) are provided in the mounting plate (16). Both sets of movable brackets (25) are movably engaged with the corresponding filter plates (17).

2. The lubrication mechanism for a gearbox of a reducer according to claim 1, characterized in that: A fixing frame (4) is fixedly installed inside the oil injection pipe (2). A valve plate (5) is slidably sleeved on the fixing frame (4). Two sets of symmetrically distributed first springs (6) are sleeved on the fixing frame (4). The two ends of the first springs (6) are fixedly connected to the valve plate (5) and the fixing frame (4) respectively. A retaining ring (7) is fixedly installed inside the oil injection pipe (2). The valve plate (5) and the retaining ring (7) are movably engaged.

3. The lubrication mechanism for a gearbox of a reducer according to claim 1, characterized in that: The threaded rod (11) passes through the first push rod (8) and is threadedly connected to the first push rod (8). The threaded tube (13) passes through the second push rod (9) and is threadedly connected to the second push rod (9). The threaded rod (11) has two sets of symmetrically distributed limiting grooves (12). The threaded tube (13) has two sets of symmetrically distributed limiting blocks (14). The threaded tube (13) is slidably sleeved with the threaded rod (11) through the limiting blocks (14).

4. A lubrication mechanism for a gearbox of a reducer according to claim 1, characterized in that: The filter screen (18) has two sets of symmetrically distributed slots (19), and the mounting frame (15) has two sets of symmetrically distributed retaining rings (20) slidably installed. The mounting frame (15) has a bidirectional screw (22) rotatably installed inside.

5. A lubrication mechanism for a gearbox of a reducer according to claim 4, characterized in that: The two sets of retaining rings (20) are fixedly connected to the mounting bracket (15) through the telescopic tube (21) respectively. The bidirectional screw (22) passes through the two sets of retaining rings (20) respectively and is threadedly connected to the two sets of retaining rings (20) respectively.

6. A lubrication mechanism for a gearbox of a speed reducer according to claim 1, characterized in that: Both sets of the movable frames (25) are fixedly installed with a stop (26). The movable frame (25) is slidably connected to the mounting plate (16) through the stop (26). Both sets of the movable frames (25) are fitted with a second spring (27). The two ends of the second spring (27) are fixedly connected to the stop (26) and the mounting plate (16) respectively. Both sets of the movable frames (25) are fixedly installed with a second rack (28).

7. A lubrication mechanism for a gearbox of a speed reducer according to claim 1, characterized in that: A rotating rod (29) is rotatably mounted inside the mounting plate (16). A second gear (30) is sleeved on the rotating rod (29). The second gear (30) is meshed with two sets of second racks (28). A torsion spring (31) is sleeved on the rotating rod (29). The two ends of the torsion spring (31) are fixedly connected to the second gear (30) and the mounting plate (16) respectively.

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