High-strength oil retaining ring for gearbox

Abstract

This utility model relates to the field of oil baffle ring technology, specifically disclosing a high-strength oil baffle ring for gearboxes, comprising an oil baffle ring and an annular groove. The oil baffle ring has a circular ring structure with a central hole at its center. An annular groove is formed on the side wall of the central hole, and a sealing mechanism including a sealing ring is provided within the annular groove. A sealing ring is provided on the inner ring of the annular groove, and the inner diameter of the sealing ring is the same as the diameter of the central hole. Four evenly distributed arc-shaped sliders abut against the outer side wall of the sealing ring, with a gap between each arc-shaped slider. Compared with traditional oil baffle rings, this high-strength oil baffle ring for gearboxes has the characteristics of high strength and high wear resistance.

Description

Technical Field

[0001] This utility model relates to the field of oil retainer technology, and in particular to a high-strength oil retainer for gearboxes. Background Technology

[0002] The oil baffle ring for the gearbox is a part used to prevent lubricating oil from leaking out. It is installed between the two end shafts of the gearbox and the outer side of the end caps of the gearbox.

[0003] Existing transmission oil retainer rings have insufficient strength and wear resistance. Furthermore, when installed on the shaft, the seal between the ring and the shaft may fail to seal properly after high-temperature deformation or wear, which adversely affects the lubricating oil return effect of the transmission. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength oil retainer ring for gearboxes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-strength oil baffle ring for a gearbox includes an oil baffle ring and an annular groove. The oil baffle ring has a circular annular structure, with a central hole in the center and an annular groove on the side wall of the central hole. A sealing mechanism including a sealing ring is provided in the annular groove.

[0007] The inner ring of the annular groove is provided with a sealing ring, the inner diameter of which is the same as the diameter of the central hole. The outer ring sidewall of the sealing ring abuts against four evenly distributed arc-shaped sliders, and there is a gap between each arc-shaped slider.

[0008] Preferably, a recessed groove is formed on one side of the outer ring of the oil baffle, and the edges of the recessed groove and the side wall of the oil baffle are rounded.

[0009] Preferably, four bolt holes are evenly provided on the sinking trough, and a wedge-shaped groove is provided at the end of each bolt hole away from the sinking trough.

[0010] Preferably, the wedge-shaped groove has a sliding groove on the side near the center hole, and the sliding groove is connected to the annular groove.

[0011] Preferably, a slide rod is slidably connected within the slide groove, and the end of each slide rod is fixedly connected to the side wall of each arc-shaped slider.

[0012] Preferably, the end of the slide rod away from the central hole extends out of the slide groove, and a wedge-shaped end is provided on the side of the slide rod away from the sinking groove, with the oblique angle of the wedge-shaped end matching the wedge-shaped groove.

[0013] Preferably, the bolt hole is internally threaded with a bolt, the bottom of the bolt is a slope, the slope is adapted to the wedge groove, and a square base is fixedly connected to the bottom of the slope.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model features an oil baffle ring. The high-strength oil baffle ring for the gearbox is made of C75S high-carbon special steel through stamping and subsequent carburizing treatment, achieving a surface hardness of 370-580 HV10, CHD610, and DS75%. Compared with traditional oil baffle rings, it has the characteristics of high strength and high wear resistance.

[0016] This invention incorporates a sealing ring made of expandable graphite material. The sealing ring itself has high wear resistance and can expand under high temperature conditions. By contacting the rotating shaft, the sealing ring enhances the sealing performance of the shaft without affecting its normal rotation. As the shaft rotates and generates heat, the sealing ring expands to compensate for the linear expansion of the metal material caused by heat, ensuring that the oil baffle ring combined with the sealing ring prevents lubricating oil from leaking out.

[0017] This invention, through the setting of a sealing mechanism, allows the slope to push the wedge end as the bolts are tightened, causing the wedge end and the slide rod to slide into the groove. This, in turn, pushes the four arc-shaped sliders closer together until the side walls of the four arc-shaped sliders abut against each other, thus filling the gap between the four arc-shaped sliders. It also pushes the sealing ring to abut tightly against the outer wall of the rotating shaft, thereby achieving a seal between the groove, the annular groove, the arc-shaped sliders, the sealing ring, and the rotating shaft. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-strength oil retainer ring for a gearbox proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the wedge-shaped groove structure of a high-strength oil baffle ring for a gearbox proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the annular groove structure of a high-strength oil retainer ring for a gearbox proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing mechanism of a high-strength oil baffle ring for a gearbox proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the bolt structure of a high-strength oil retainer ring for a gearbox proposed in this utility model.

[0023] In the diagram: 1. Oil baffle ring; 2. Center hole; 3. Sinking groove; 4. Bolt hole; 5. Wedge groove; 6. Annular groove; 7. Slide groove; 8. Sealing mechanism; 9. Sealing ring; 10. Arc-shaped slider; 11. Slide rod; 12. Wedge end; 13. Bolt; 14. Slope; 15. Square bottom. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-5 A high-strength oil baffle for a gearbox includes an oil baffle 1 and an annular groove 6. The oil baffle 1 has a circular structure, with a central hole 2 in the center and an annular groove 6 on the side wall of the central hole 2. A sealing mechanism 8, including a sealing ring 9, is provided in the annular groove 6.

[0026] The inner ring of the annular groove 6 is provided with a sealing ring 9. The inner diameter of the sealing ring 9 is the same as the diameter of the central hole 2. The outer ring sidewall of the sealing ring 9 abuts against four evenly distributed arc-shaped sliders 10, and there is a gap between each arc-shaped slider 10. The high-strength oil baffle ring 1 for the gearbox is stamped from C75S high-carbon special steel and subsequently carburized, achieving a surface hardness of 370-580HV10, CHD610, and DS75%. Compared to traditional oil baffle rings, it features high strength and high wear resistance. The center hole 2 is used for shaft insertion and installation. The annular groove 6 is hidden inside the oil baffle ring 1. The sealing ring 9 is made of expandable graphite material. The sealing ring 9 itself has high wear resistance and can expand under high temperature conditions. Through the contact between the sealing ring 9 and the shaft, it adds sealing performance to the shaft without affecting the normal rotation of the shaft. As the shaft rotates and generates heat, the sealing ring 9 can expand, thereby compensating for the linear expansion of the metal material caused by heat. This ensures that the oil baffle ring 1 and the sealing ring 9 prevent lubricating oil leakage. The sealing ring 9 is pushed by four arc-shaped sliders 10 to achieve a tight connection between the inner ring of the sealing ring 9 and the outer wall of the shaft.

[0027] As a technical optimization of this utility model, a recessed groove 3 is provided on one side of the outer ring of the oil baffle ring 1, and the edges of the recessed groove 3 and the side wall edges of the oil baffle ring 1 are rounded. The recessed groove 3 and the rounded corners facilitate the installation of the oil baffle ring 1 at the gearbox end cover, achieving the effects of positioning and natural sealing.

[0028] As a technical optimization of this utility model, four bolt holes 4 are evenly provided on the sinking groove 3, and a wedge-shaped groove 5 is provided at the end of each bolt hole 4 away from the sinking groove 3. The bolt holes 4 are used for the installation of bolts 13 to connect the oil baffle ring 1 to the gearbox. The wedge-shaped groove 5 cooperates with the slope 14 of the bolt 13, so that as the bolt 13 is tightened, the slope 14 and the wedge-shaped groove 5 are tightly abutted, and simultaneously push the slide rod 11 to move, thereby pushing the arc-shaped sliders 10 closer to each other.

[0029] As a technical optimization of this utility model, a sliding groove 7 is provided on the side of the wedge-shaped groove 5 near the center hole 2, and the sliding groove 7 is connected to the annular groove 6. The sliding groove 7 is used for the movement of the sliding rod 11.

[0030] As a technical optimization of this utility model, a slide rod 11 is slidably connected inside the slide groove 7, and the end of each slide rod 11 is fixedly connected to the side wall of each arc-shaped slider 10. The slide rod 11 and the arc-shaped slider 10 move synchronously.

[0031] As a technical optimization of this utility model, the end of the slide rod 11 away from the central hole 2 extends out of the slide groove 7, and a wedge-shaped end 12 is provided on the side of the slide rod 11 away from the sinking groove 3. The oblique angle of the wedge-shaped end 12 is adapted to the wedge-shaped groove 5. The wedge-shaped end 12 is also used in conjunction with the slope 14. As the bolt 13 is tightened, the slope 14 can push the wedge-shaped end 12 so that the wedge-shaped end 12 and the slide rod 11 slide into the slide groove 7, thereby pushing the four arc-shaped sliders 10 closer to each other until the side walls of the four arc-shaped sliders 10 abut against each other, thus filling the gap between the four arc-shaped sliders 10 and pushing the sealing ring 9 to abut tightly against the outer wall of the rotating shaft, so that the slide groove 7, the annular groove 6, the arc-shaped sliders 10, the sealing ring 9 and the rotating shaft are sealed.

[0032] As a technical optimization of this utility model, a bolt 13 is internally threaded into the bolt hole 4. The bottom of the bolt 13 is a slope 14, which is adapted to the wedge groove 5. A square base 15 is fixedly connected to the bottom end of the slope 14. The bolt 13, through the cooperation of the slope 14, the wedge groove 5, and the wedge end 12, securely connects the oil retainer ring 1 to the gearbox. The square base 15 is used to lock the bolt 13 with power tools.

[0033] In use, the oil baffle ring 1 is installed on the gearbox end cover, so that the center hole 2 passes through the rotating shaft. The recessed groove 3 abuts against the outer wall of the gearbox end cover. Each bolt hole 4 is aligned with the corresponding hole in the gearbox, and the bolts 13 are placed in the bolt holes 4 in sequence. The bolts 13 are tightened by using a power tool through the square base 15. During the tightening process, as the bolts 13 are tightened, the slope 14 can push the wedge end 12 so that the wedge end 12 and the slide rod 11 slide into the slide groove 7. This can then push the four arc-shaped sliders 10 closer to each other until the side walls of the four arc-shaped sliders 10 abut against each other, thus filling the gap between the four arc-shaped sliders 10. This also pushes the sealing ring 9 to abut tightly against the outer wall of the rotating shaft. Finally, the slope 14 abuts tightly against the wedge groove 5. As the rotating shaft rotates and generates heat, the sealing ring 9 can expand, thereby compensating for the linear expansion of the metal material caused by heat.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength oil retainer ring for a gearbox, comprising an oil retainer ring (1) and an annular groove (6), characterized in that: The oil baffle ring (1) is a circular ring structure. The oil baffle ring (1) has a central hole (2) in the center. The side wall of the central hole (2) has an annular groove (6). A sealing mechanism (8) including a sealing ring (9) is provided in the annular groove (6). The inner ring of the annular groove (6) is provided with a sealing ring (9). The inner diameter of the sealing ring (9) is the same as the diameter of the central hole (2). The outer ring sidewall of the sealing ring (9) is abutted by four evenly distributed arc-shaped sliders (10), and there is a gap between each arc-shaped slider (10).

2. The high-strength oil retainer ring for a gearbox according to claim 1, characterized in that: The outer ring of the oil baffle (1) has a recessed groove (3) on one side, and the edges of the recessed groove (3) and the side wall of the oil baffle (1) are rounded.

3. The high-strength oil retainer ring for a gearbox according to claim 2, characterized in that: The sinking trough (3) is provided with four bolt holes (4) evenly spaced, and each bolt hole (4) has a wedge-shaped groove (5) at one end away from the sinking trough (3).

4. A high-strength oil retainer ring for a gearbox according to claim 3, characterized in that: The wedge groove (5) has a sliding groove (7) on the side near the center hole (2), and the sliding groove (7) is connected to the annular groove (6).

5. A high-strength oil retainer ring for a gearbox according to claim 4, characterized in that: A slide rod (11) is slidably connected inside the slide groove (7), and the end of each slide rod (11) is fixedly connected to the side wall of each arc-shaped slider (10).

6. A high-strength oil retainer ring for a gearbox according to claim 5, characterized in that: The slide rod (11) extends out of the slide groove (7) at one end away from the central hole (2), and a wedge-shaped end (12) is provided on the side of the slide rod (11) away from the sinking groove (3), with the oblique angle of the wedge-shaped end (12) matching the wedge-shaped groove (5).

7. A high-strength oil retainer ring for a gearbox according to claim 6, characterized in that: The bolt hole (4) is internally threaded with a bolt (13). The bottom of the bolt (13) is a slope (14). The slope (14) is adapted to the wedge groove (5). A square bottom (15) is fixedly connected to the bottom of the slope (14).

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