Oil deflector ring of main shaft of speed reducer

Abstract

The utility model provides a speed reducer main shaft oil retainer, and relates to the technical field of oil retainers, the speed reducer main shaft oil retainer comprises an end cover connected with the outer wall of a speed reducer shell, an outward convex ring table is arranged in the middle of the end cover, the outer circumference of a speed reducer main shaft is sleeved with the convex ring table, and a first sealing ring attached to the speed reducer main shaft is fixedly arranged on the inner wall of the convex ring table; an annular protrusion is annularly arranged at the end, away from the end cover, of the convex ring table, a pressing cylinder is arranged on the periphery of the convex ring table, a pressing groove is formed in the end, close to the end cover, of the pressing cylinder, the pressing groove is in interference fit with the annular protrusion, a second sealing ring is arranged in the pressing groove and abuts against the end, away from the end cover, of the convex ring table, and a third sealing ring is embedded in the inner side wall of the end cover. The first sealing ring fixedly arranged on the inner wall of the convex ring table, the second sealing ring in the pressing groove and the third sealing ring embedded in the inner side wall of the end cover are used for sealing the space between the speed reducer main shaft and the speed reducer shell, pollution caused by oil leakage to the field environment is prevented, and the labor intensity of a station is prevented from being increased.

Description

Technical Field

[0001] This application relates to the technical field of oil baffle rings, and more particularly, to an oil baffle ring for the main shaft of a speed reducer. Background Art

[0002] As an important component of a cement mill roller press, a speed reducer can reduce the high speed of an electric motor to a speed suitable for the operation of the roller press and amplify the torque output by the electric motor to meet the requirement of the roller press for a large extrusion force, thereby effectively extruding and crushing materials.

[0003] However, after long-term operation, the main shaft of the speed reducer is prone to surface wear of the main shaft, poor cooperation with the seal, resulting in oil leakage, causing serious environmental pollution at the site and increasing the labor intensity of the operators. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide an oil baffle ring for the main shaft of a speed reducer, which can solve the technical problems that after long-term operation, the main shaft of the speed reducer is prone to surface wear of the main shaft, poor cooperation with the seal, resulting in oil leakage, causing serious environmental pollution at the site and increasing the labor intensity of the operators.

[0005] The embodiments of this application provide an oil baffle ring for the main shaft of a speed reducer, including an end cover connected to the outer wall of the speed reducer housing. The middle part of the end cover is provided with an outward convex ring platform. The convex ring platform is sleeved on the outer circumference of the main shaft of the speed reducer. The inner wall of the convex ring platform is fixedly provided with a first sealing ring that fits with the main shaft of the speed reducer. One end of the convex ring platform away from the end cover is provided with a circular protrusion in a ring shape. The outer circumference of the convex ring platform is provided with a pressing cylinder. One end of the pressing cylinder close to the end cover is provided with a pressing groove. The pressing groove is in interference fit with the circular protrusion. A second sealing ring is arranged in the pressing groove. The second sealing ring abuts against one end of the convex ring platform away from the end cover. The inner side wall of the end cover is embedded with a third sealing ring.

[0006] Further, the inner side of the second sealing ring fits with the main shaft of the speed reducer.

[0007] Further, the width of the first sealing ring is 20 cm to 30 cm, and the width of the second sealing ring is 5 cm to 10 cm.

[0008] Further, the outer side of the end cover is provided with an annular groove adapted to one end of the pressing cylinder close to the end cover. One end of the pressing cylinder close to the end cover abuts against the bottom of the annular groove.

[0009] Further, a fourth sealing ring is sleeved on the outer circumference of the convex ring platform. The fourth sealing ring is located between the end cover and the circular protrusion. The outer side wall of the fourth sealing ring fits with the side wall of the pressing groove.

[0010] Furthermore, a plurality of bolt holes are evenly provided on the end cover.

[0011] Advantages of the utility model:

[0012] The utility model seals between the main shaft of the speed reducer and the speed reducer housing through the first sealing ring fixed on the inner wall of the convex ring platform, the second sealing ring in the pressing groove and the third sealing ring embedded in the inner side wall of the end cover, preventing oil leakage from polluting the on-site environment and avoiding the increase of labor intensity at the post. Description of the drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of some embodiments of the present application;

[0015] Figure 2 It is a schematic exploded structural diagram of some embodiments of the present application;

[0016] The reference numerals are respectively:

[0017] 1. End cover; 11. Annular groove; 12. Bolt hole; 2. Convex ring platform; 21. Annular protrusion; 3. First sealing ring; 4. Pressing cylinder; 41. Pressing groove; 5. Second sealing ring; 6. Third sealing ring; 7. Fourth sealing ring. Detailed implementation manners

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0020] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0022] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. Specific embodiments:

[0025] Such as Figure 1 and Figure 2As shown in the figure, the present application provides an oil baffle ring for the main shaft of a speed reducer, which includes an end cover 1 connected to the outer wall of the speed reducer housing. A convex ring platform 2 is provided in the middle of the end cover 1. The convex ring platform 2 is sleeved on the outer circumference of the main shaft of the speed reducer. A first sealing ring 3 that fits the main shaft of the speed reducer is fixedly provided on the inner wall of the convex ring platform 2. An annular protrusion 21 is provided around one end of the convex ring platform 2 away from the end cover 1. A pressing cylinder 4 is provided on the outer circumference of the convex ring platform 2. A pressing groove 41 is provided at one end of the pressing cylinder 4 close to the end cover 1. The pressing groove 41 is in interference fit with the annular protrusion 21. A second sealing ring 5 is provided in the pressing groove 41. The second sealing ring 5 abuts against one end of the convex ring platform 2 away from the end cover 1. A third sealing ring 6 is embedded in the inner side wall of the end cover 1. When in use, first, the end cover 1 is sleeved on the main shaft of the speed reducer through the convex ring platform 2, and then the end cover 1 is connected to the outer wall of the speed reducer housing, and the third sealing ring 6 is closely attached to the outer wall of the speed reducer housing. The pressing cylinder 4 is sleeved on the main shaft of the speed reducer and the pressing cylinder 4 is knocked inward so that the pressing cylinder 4 sleeves the convex ring platform 2 and the pressing groove 41 of the pressing cylinder 4 is in interference fit with the annular protrusion 21. The first sealing ring 3 fixedly provided on the inner wall of the convex ring platform 2, the second sealing ring 5 in the pressing groove 41, and the third sealing ring 6 embedded in the inner side wall of the end cover 1 are used to seal between the main shaft of the speed reducer and the speed reducer housing, preventing oil leakage from polluting the on-site environment and avoiding an increase in the labor intensity of the post work station.

[0026] As Figure 1 shown, the inner side of the second sealing ring 5 fits the main shaft of the speed reducer, so that the second sealing ring 5 not only seals the pressing groove 41 and one end of the convex ring platform 2 away from the end cover 1, but also seals between the main shaft of the speed reducer and the pressing cylinder 4.

[0027] As Figure 1 shown, the width of the first sealing ring 3 is 20 cm to 30 cm, and the width of the second sealing ring 5 is 5 cm to 10 cm. In this embodiment, the width of the first sealing ring 3 is 25 cm, and the width of the second sealing ring 5 is 5 cm. The wear of the main shaft of the speed reducer often occurs around the connection position between the main shaft of the speed reducer and the original seal. By replacing the original seal with the present utility model, the worn parts of the main shaft of the speed reducer are fully covered by the first sealing ring 3 and the second sealing ring 5, and sealed to prevent oil leakage without replacing the main shaft.

[0028] As Figure 1 and Figure 2 shown, an annular groove 11 adapted to one end of the pressing cylinder 4 close to the end cover 1 is provided on the outer side of the end cover 1. One end of the pressing cylinder 4 close to the end cover 1 abuts against the bottom of the annular groove 11, so that the pressing cylinder 4 and the protrusion of the convex ring platform 2 are better matched, making the connection more stable.

[0029] As Figure 1 and Figure 2As shown in the figure, a fourth sealing ring 7 is sleeved outside the convex ring platform 2. The fourth sealing ring 7 is located between the end cover 1 and the annular protrusion 21. The outer side wall of the fourth sealing ring 7 is attached to the side wall of the pressing groove 41, and further sealing is achieved through the fourth sealing ring 7. Among them, before the pressing cylinder 4 is sleeved on the convex ring platform 2, the fourth sealing ring 7 is first sleeved on the convex ring platform 2, and the fourth sealing ring 7 is located between the end cover 1 and the annular protrusion 21. A labyrinth structure is formed among the first sealing ring 3, the second sealing ring 5 and the fourth sealing ring 7, further improving the sealing performance. In this embodiment, the first sealing ring 3, the second sealing ring 5, the third sealing ring 6 and the fourth sealing ring 7 are all graphite packing.

[0030] As Figure 1 and Figure 2 shown in the figure, a plurality of bolt holes 12 are evenly arranged on the end cover 1. The end cover 1 is connected to the outer wall of the reducer housing by bolts passing through the bolt holes 12.

[0031] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A reducer main shaft oil retaining ring, characterized in that: It includes an end cover connected to the outer wall of the reducer housing, an outward convex ring platform is provided in the middle of the end cover, the convex ring platform is sleeved on the outer circumference of the reducer main shaft, the inner wall of the convex ring platform is fixedly provided with a first sealing ring that fits with the reducer main shaft, the convex ring platform is provided with an annular protrusion around the end of the convex ring platform away from the end cover, a clamping cylinder is provided on the outer periphery of the convex ring platform, a clamping groove is provided at the end of the clamping cylinder close to the end cover, the clamping groove is interference fit with the annular protrusion, a second sealing ring is provided in the clamping groove, the second sealing ring abuts against the end of the convex ring platform away from the end cover, and a third sealing ring is embedded in the inner side wall of the end cover.

2. The reducer main shaft oil retaining ring according to claim 1, characterized in that: The inner side of the second sealing ring is in contact with the main shaft of the reducer.

3. The reducer main shaft oil retaining ring according to claim 1, characterized in that: The width of the first sealing ring is 20 cm to 30 cm, and the width of the second sealing ring is 5 cm to 10 cm.

4. The reducer main shaft oil retainer ring according to claim 1, characterized in that: An annular groove matched with one end of the compression cylinder close to the end cover is provided on the outer side of the end cover, and one end of the compression cylinder close to the end cover abuts against the bottom of the annular groove.

5. The reducer main shaft oil retaining ring according to claim 1, characterized in that: The outer sleeve of the convex ring is provided with a fourth sealing ring, and the fourth sealing ring is located between the end cover and the annular protrusion, and the outer side wall of the fourth sealing ring is in contact with the side wall of the pressing groove.

6. The reducer main shaft oil retainer ring according to claim 1, characterized in that: A plurality of bolt holes are evenly arranged on the end cover.

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