High-speed planet carrier combination gear oil collecting and lubricating structure

Abstract

The utility model relates to the technical field of oil collecting and lubricating equipment, and discloses a high-speed planet carrier combined tooth oil collecting and lubricating structure which comprises a planet carrier, a planet wheel shaft is arranged in the planet carrier in a penetrating mode, a planet wheel is fixedly connected to the middle of the outer wall of the planet wheel shaft, and a distance ring is fixedly connected to the outer wall of the planet wheel shaft. Adjusting rings are fixedly connected to the left side and the right side of the outer wall of the planet wheel shaft, an elastic check ring for a hole is fixedly connected to the left side of the top of the inner wall of the planet carrier, and the left side of the outer wall of the planet wheel shaft is axially fixed to the left side of the inner wall of the planet carrier through the elastic check ring for the hole. Oil collecting grooves are formed in the upper and lower ends of the right side of the inner wall of the planet carrier. According to the planet carrier, the concave oil collecting groove in the right side plate of the planet carrier is simple and reliable in design and low in cost, oil is continuously supplied to lubricate the combined tooth part in the rotating process of the equally-divided oil through holes, all parts of the speed reducer are fully lubricated while the oil level is lowered, and therefore the maintenance cost of the speed reducer in the later period is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of oil collecting and lubricating equipment, in particular to a high-speed planetary carrier combined gear oil collecting and lubricating structure. Background Art

[0002] Planetary reducers have the advantages of compact structure, high transmission efficiency, high load-bearing capacity, and stable operation. They are widely used in various mechanical equipment, such as metallurgy, mining, lifting and transportation, electric power, construction materials, light industry, and transportation. In order to ensure the continuous and stable operation of planetary reducers, the lubrication design and optimization of planetary reducers are particularly important.

[0003] Due to the large load-bearing capacity and compact structure of planetary reducers, large and medium-sized speed ratio planetary reducers are equipped with large-power motors in actual use. When oil bath lubrication is used alone, there will be many problems and disadvantages due to insufficient thermal power and severe heat generation. The specific manifestations are:

[0004] 1. Oil seal aging and oil leakage. The reducer is seriously heated, which will cause the rubber of the oil seal lip to age over time, affecting the sealing effect, causing oil seepage and leakage, and polluting the production site environment.

[0005] 2. Affect the service life of bearings and gears. Long-term high temperature of the reducer will cause the lubricating oil to deteriorate, reduce the lubrication protection effect, and increase the friction and wear of bearings and gears. At the same time, high temperature will also cause the metal material to expand, aggravate the wear of gears and bearings, and ultimately greatly reduce the service life of the bearings and gears, and cannot guarantee the normal operation of the reducer.

[0006] When forced cooling lubrication is used without lowering the oil level, the reducer can work normally, but the maintenance cost of replacing the lubricating oil in the later stage is high. When the oil level is lowered and precise point forced cooling lubrication is used, the conventional high-speed planetary carrier combined with the gear part cannot ensure sufficient lubrication due to structural reasons, so lowering the oil level + precise forced lubrication becomes unfeasible. Utility Model Content

[0007] In order to make up for the above shortcomings, the utility model provides a high-speed planetary carrier combined gear oil collection lubrication structure, which aims to improve the problem that when the oil level is not lowered, although the reducer can be guaranteed to work normally, the maintenance cost of the later lubricating oil replacement is high. When the oil level is lowered and precise point forced cooling lubrication is adopted, the conventional high-speed planetary carrier combined gear part cannot ensure sufficient lubrication due to structural reasons.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-speed planetary carrier combined with a gear oil collecting lubrication structure, comprising a planetary carrier, a planetary gear shaft is penetrated inside the planetary carrier, a planetary gear is fixedly connected to the middle part of the outer wall of the planetary gear shaft, a distance ring is fixedly connected to the outer wall of the planetary gear shaft, an adjustment ring is fixedly connected to the left and right sides of the outer wall of the planetary gear shaft, a hole elastic retaining ring is fixedly connected to the left side of the top of the inner wall of the planetary carrier, the left side of the outer wall of the planetary gear shaft is axially fixed to the left side of the inner wall of the planetary carrier through the hole elastic retaining ring, the upper and lower ends of the right side of the inner wall of the planetary carrier are provided with oil collecting grooves, and a plurality of oil through holes are equidistantly provided in the middle part of the right side of the planetary carrier.

[0009] As a further description of the above technical solution:

[0010] A central gear is arranged in the middle of the inner wall of the planetary carrier, a plurality of oil injection nozzles are arranged equidistantly on the left side of the central gear, the central gear is meshingly connected with the planetary gears, a sun gear is arranged on the right side of the planetary carrier, a ball top is fixedly connected to the middle of the inner wall of the sun gear, and the sun gear is meshingly connected with the planetary carrier.

[0011] As a further description of the above technical solution:

[0012] The inner walls of the two oil collecting tanks are of concave design.

[0013] As a further description of the above technical solution:

[0014] A wear-resistant nylon block is fixedly connected to the right side of the inner wall of the planet carrier.

[0015] As a further description of the above technical solution:

[0016] The plurality of oil through holes are all annular in design.

[0017] As a further description of the above technical solution:

[0018] The plurality of oil through holes are respectively communicated with the corresponding oil collecting grooves.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, the concave oil collecting groove on the right side plate of the planetary carrier is simple, reliable and low-cost in design, and the equally divided oil holes continuously supply oil to lubricate the combined teeth during rotation, so that the oil level is lowered while ensuring that all parts of the reducer are fully lubricated, thereby reducing the later maintenance cost of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a cross-sectional view of a high-speed planetary carrier combined gear oil collection lubrication structure proposed by the utility model;

[0022] Figure 2 This is a structural schematic diagram of an oil spray nozzle of a high-speed planetary carrier combined with a gear oil collection lubrication structure proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the positions of the oil holes of a high-speed planetary carrier combined with a gear oil collecting lubrication structure proposed by the utility model.

[0024] Legend:

[0025] 1. Center gear; 2. Planetary gear shaft; 3. Elastic retaining ring for hole; 4. Oil injection nozzle; 5. Planetary gear; 6. Spacer ring; 7. Adjusting ring; 8. Wear-resistant nylon block; 9. Ball top; 10. Sun gear; 11. Planetary carrier; 12. Oil hole; 13. Oil collecting tank. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a high-speed planetary carrier combined with a gear oil collecting lubrication structure, comprising a planetary carrier 11, a planetary gear shaft 2 is passed through the interior of the planetary carrier 11, a planetary gear 5 is fixedly connected to the middle of the outer wall of the planetary gear shaft 2, a distance ring 6 is fixedly connected to the outer wall of the planetary gear shaft 2, and an adjusting ring 7 is fixedly connected to the left and right sides of the outer wall of the planetary gear shaft 2, a hole elastic retaining ring 3 is fixedly connected to the left side of the inner wall of the planetary carrier 11, and the left side of the outer wall of the planetary gear shaft 2 is axially fixed to the left side of the inner wall of the planetary carrier 11 through the hole elastic retaining ring 3, and the upper and lower ends of the right side of the inner wall of the planetary carrier 11 are both provided with oil collecting grooves 13, and a plurality of oil through holes 12 are evenly spaced in the middle of the right side of the planetary carrier 11;

[0028] Specifically, the planetary gear shaft 2 passes through the planetary carrier 11 and connects various components, so that the entire transmission system runs smoothly. The inner hole of the planetary gear shaft 2 is connected to the inner hole of the bearing of the planetary wheel 5, which is a precise match and ensures the stable transmission between the planetary gear shaft 2 and the planetary wheel 5. The planetary wheel 5 includes the planetary wheel itself, the hole elastic retaining ring 3 and the self-aligning bearing. The hole elastic retaining ring 3 axially fixes the planetary gear shaft 2 through the inner hole of the planetary gear shaft of the planetary carrier 11, which enhances the stability of the planetary gear shaft 2 and prevents it from being displaced during operation. The self-aligning bearing ensures the stability of the planetary gear 5 during operation and reduces the possibility of wear. The distance ring 6 and the adjustment ring 7 are important accessories of the planetary gear shaft 2. Their inner holes are connected to the inner holes of the bearing of the planetary wheel 5, which play a role in fixing and adjusting the distance between the planetary gear shaft 2 and the planetary wheel 5. This design makes the entire transmission system more stable during operation and extends the service life of each component. The central gear (shaft) 1 meshes with the outer teeth of the planetary gear 5 through the inner hole on the left side of the planetary carrier 11. This design makes the transmission between the central gear 1 and the planetary gear 5 more stable and improves the efficiency of the entire transmission system.

[0029] Reference Figure 1 and Figure 3 A central gear 1 is arranged in the middle of the inner wall of the planet carrier 11, and a plurality of oil nozzles 4 are arranged equidistantly on the left side of the central gear 1. The central gear 1 is meshed with the planet gear 5. A sun gear 10 is arranged on the right side of the planet carrier 11. A ball top 9 is fixedly connected to the middle of the inner wall of the sun gear 10. The sun gear 10 is meshed with the planet carrier 11. The plurality of oil holes 12 are all of annular design.

[0030] Specifically, through the position arrangement of multiple oil nozzles 4, the outer teeth and inner hole bearings of the planetary gear 5, and the meshing parts of the center gear 1 and the outer teeth of the planetary gear 5 are forced to be lubricated respectively. The ball top 9 provides stable support for the entire wheel body and ensures the smoothness and stability of the sun gear 10 during operation. Through multiple oil holes 12, all of which adopt an annular design, the lubricating oil enters the combined tooth part (the meshing part of the combined tooth on the right side of the sun gear 10 and the planetary carrier 11) for lubrication, which can ensure that stable and sufficient lubricating oil can continuously lubricate the combined tooth part during the operation of the reducer.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The inner walls of the two oil collecting grooves 13 are concave in design; a wear-resistant nylon block 8 is fixedly connected to the right side of the inner wall of the planet carrier 11; and a plurality of oil holes 12 are respectively connected to the corresponding oil collecting grooves 13;

[0032] Specifically, the inner walls of the two oil collecting grooves 13 are concavely designed to facilitate the collection of lubricating oil. The wear-resistant nylon block 8 is connected to the inner hole of the planet carrier 11, which reduces wear and friction and ensures smooth transmission between the planetary gear shaft 2 and the planetary gear 5. At the same time, the material selection of the nylon block 8 enables it to maintain good wear resistance during long-term operation. The multiple oil holes 12 are respectively connected to the corresponding oil collecting grooves 13, so that the lubricating oil can be lubricated stably.

[0033] Working principle: The oil spray nozzle 4 is arranged in the position shown in the figure to force lubricate the outer teeth and inner bore bearings of the planetary gear 5, and the meshing of the center gear 1 and the outer teeth of the planetary gear 5. Among them, the lubricating oil that is forced to lubricate the meshing of the center gear 1 and the outer teeth of the planetary gear 5 will be partially sprayed into the concave oil collecting groove on the right side plate of the planetary carrier 11 and stored. The lubricating oil that is forced to lubricate the outer teeth and inner bore bearings of the planetary gear 5 will also partially enter the concave oil collecting groove on the right side plate of the planetary carrier 11 and be stored under gravity and centrifugal force. The lubricating oil stored in the concave oil collecting groove on the right side plate of the planetary carrier 11 enters the combined tooth part (the meshing of the combined tooth on the right side of the sun gear 10 and the planetary carrier 11) through the oil hole for lubrication, which can ensure that stable and sufficient lubricating oil continuously lubricates the combined tooth part during the operation of the reducer. Even if the oil level inside the reducer is reduced, it can ensure that all parts of the reducer can be effectively lubricated and cooled, thereby reducing the maintenance cost of the reducer in the later stage.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed planetary carrier combined gear oil collection lubrication structure, comprising a planetary carrier (11), characterized in that: A planetary gear shaft (2) is inserted into the planet carrier (11), a planetary gear (5) is fixedly connected to the middle of the outer wall of the planetary gear shaft (2), a distance ring (6) is fixedly connected to the outer wall of the planetary gear shaft (2), and adjustment rings (7) are fixedly connected to the left and right sides of the outer wall of the planetary gear shaft (2). A hole elastic retaining ring (3) is fixedly connected to the left side of the top of the inner wall of the planet carrier (11), and the left side of the outer wall of the planetary gear shaft (2) is axially fixed to the left side of the inner wall of the planet carrier (11) through the hole elastic retaining ring (3). The right side of the inner wall of the planet carrier (11) is provided with oil collecting grooves (13) at both the upper and lower ends, and the right side of the planet carrier (11) is provided with a plurality of oil through holes (12) at equal intervals in the middle of the right side.

2. The high-speed planetary carrier combined gear oil collecting lubrication structure according to claim 1, characterized in that: A central gear (1) is arranged in the middle of the inner wall of the planet carrier (11), a plurality of oil injection nozzles (4) are arranged at equal intervals on the left side of the central gear (1), the central gear (1) is meshingly connected with the planetary gear (5), a sun gear (10) is arranged on the right side of the planet carrier (11), a ball top (9) is fixedly connected to the middle of the inner wall of the sun gear (10), and the sun gear (10) is meshingly connected with the planet carrier (11).

3. The high-speed planetary carrier combined gear oil collecting lubrication structure according to claim 1, characterized in that: The inner walls of the two oil collecting grooves (13) are of concave design.

4. The high-speed planetary carrier combined gear oil collecting lubrication structure according to claim 1, characterized in that: A wear-resistant nylon block (8) is fixedly connected to the right side of the inner wall of the planet carrier (11).

5. The high-speed planetary carrier combined gear oil collecting lubrication structure according to claim 1, characterized in that: The plurality of oil through holes (12) are all of annular design.

6. The high-speed planetary carrier combined gear oil collecting lubrication structure according to claim 1, characterized in that: The plurality of oil through holes (12) are respectively connected to the corresponding oil collecting grooves (13).

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