An adaptive lubrication worm gear box

By using semicircular convex teeth to extrude the worm gear and sliding plate to adjust the lubricant flow rate in the worm gear box, the problem of worm stress concentration is solved, which extends the service life and improves the overall performance.

CN119123036BActive Publication Date: 2025-05-27TAIZHOU JIFENG TRANSMISSION TECH CO LTD
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Patent Information

Application Number
CN202411623889.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-05-27
Estimated Expiration
2044-11-14

AI Technical Summary

Technical Problem

Under high load and high speed operation, the stress concentration at both ends of the worm is severe, resulting in a decline in material performance, increasing the risk of fatigue and fracture, and affecting the overall performance.

Method used

Adaptive lubricating worm gear box design, extrudes the worm shaft body through semicircular convex teeth, releases stress, and cooperates with the slope section through the sliding plate to adjust the impact force and flow of lubricating oil sprayed from the nozzle, take away heat and reduce the working temperature.

Benefits of technology

Effectively reduce the peak internal stress of worm, extend the service life, reduce transmission errors, and improve the overall performance and reliability of worm gear box.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN119123036B_ABST
    Figure CN119123036B_ABST
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Abstract

The present invention discloses an adaptive lubrication worm gear box, belonging to the technical field of worm gear boxes. An adaptive lubrication worm gear box includes a housing and a bottom case, and further includes: an oil inlet provided at the top of the housing; an oil outlet provided at the bottom of the bottom case; a worm and a worm gear are provided in the worm gear box composed of the housing and the bottom case, and the worm and the worm gear are meshed and connected; a first gear that rotates synchronously with the worm, the first gear is provided in the bottom case, and a plurality of second gears are meshed and connected to the first gear; a riser pipe is provided in the bottom case, a tapered pipe is connected to the top end of the riser pipe, an impeller is provided in the tapered pipe, the impeller is fixedly connected to the second gear, and a nozzle is connected to the tapered pipe; The present invention can release the accumulated stress at both ends of the worm, reduce the accumulation of internal stress, avoid fatigue fracture of the worm, and extend the service life of the worm gear box.
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Claims

1. An adaptive lubrication worm gearbox, comprising a housing (1) and a bottom housing (2), characterized in that: Also includes: An oil inlet (101) is arranged on the top of the housing (1); An oil outlet (201) is arranged at the bottom of the bottom shell (2); A worm wheel (5) and a worm (6) are arranged in the worm gear box composed of the cover shell (1) and the bottom shell (2), and the worm wheel (5) and the worm (6) are meshed and connected; A first gear (7) rotates synchronously with the worm (6), the first gear (7) being arranged in the bottom shell (2), and a plurality of second gears (8) being meshingly connected to the first gear (7); A vertical pipe (11) is arranged in the bottom shell (2); the top end of the vertical pipe (11) is connected to a conical pipe (9); an impeller (25) is arranged in the conical pipe (9); the impeller (25) is fixedly connected to the second gear (8); and the conical pipe (9) is connected to a nozzle (10); A sliding plate (23) is provided at the lower end of the vertical pipe (11), and an opening (2301) is provided on the sliding plate (23); The regulating part (24) cooperates with the sliding plate (23) and is used to control the amount of fuel injection; A fixing ring (17) is provided inside the bottom shell (2), and a semicircular convex tooth (1701) is provided on the fixing ring (17), and the arc-shaped protruding end of the semicircular convex tooth (1701) faces the shaft body of the worm (6) and fits the shaft body of the worm (6); A support plate (18) fixedly connected to the bottom of the fixing ring (17); A bottom plate (21) is provided at the bottom of the sliding plate (23), a retreat rod (20) is provided on the bottom plate (21), the retreat rod (20) passes through the support plate (18), and a second spring (19) is provided between the bottom plate (21) and the support plate (18), and the second spring (19) is sleeved on the retreat rod (20); The bottom of the vertical pipe (11) is provided with a bottom groove (1101), and the adjustment part (24) is arranged at the bottom of the vertical pipe (11); The adjusting portion (24) is divided into a slope section (2402), a blocking section (2403) and a supporting section (2404) from top to bottom, and a groove (2401) is provided on the supporting section (2404), and the groove (2401) is aligned with the bottom groove (1101).

2. The adaptive lubrication worm gearbox according to claim 1, characterized in that: The worm wheel (5) is fixedly connected to an output shaft (3), the worm (6) is fixedly connected to an input shaft (4), the output shaft (3) and the input shaft (4) both extend outside the worm gear box, and the first gear (7) is arranged on the input shaft (4).

3. The adaptive lubrication worm gearbox according to claim 1, characterized in that: In the initial state, the sliding plate (23) is located in the blocking section (2403).

4. The adaptive lubrication worm gear box according to claim 1, characterized in that: A connecting rod (22) is fixedly connected to the bottom of the sliding plate (23), and the connecting rod (22) is fixedly connected to the bottom plate (21).

5. The adaptive lubrication worm gearbox according to claim 1, characterized in that: A fixing rod (15) is arranged inside the bottom shell (2), and two ends of the fixing ring (17) are slidably connected to the fixing rod (15). A first spring (16) is arranged between the two ends of the fixing ring (17) and the top end of the fixing rod (15), and the first spring (16) is sleeved on the fixing rod (15).

6. The adaptive lubrication worm gearbox according to claim 2, characterized in that: A heat exchange chamber (12) is provided below the input shaft (4), a heat exchange fin (1201) is provided in the heat exchange chamber (12), both sides of the heat exchange chamber (12) are connected to an air intake pipe (13), and the top surface of the heat exchange chamber (12) is connected to an exhaust pipe (14).

7. The adaptive lubrication worm gearbox according to claim 6, characterized in that: A section of the air inlet pipe (13) facing the outside of the bottom shell (2) is inclined downward, and a section of the air outlet pipe (14) facing the outside of the bottom shell (2) is inclined upward.

8. The adaptive lubrication worm gearbox according to claim 1, characterized in that: The number of the nozzles (10) is consistent with the number of the second gears (8), and the output end of the nozzle (10) is directly opposite to the meshing position of the worm wheel (5) and the worm (6).

Citation Information

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