End cover for collecting oil at input end of heavy gear box

Abstract

The utility model provides an end cover for collecting oil at the input end of a heavy gear box, comprising: an end cover body which is integrally disc-shaped and is internally provided with a cavity; the end cover oil outlet device is arranged at the edge of one side of the end cover body 1 and is connected with the cavity; the metal hoop is arranged on the outer ring of the end cover body in a sleeving manner; an oil inlet hole is formed in the side, away from the end cover oil outlet device, of the end cover body. The gear box solves the problems that friction between gears becomes large and gear abrasion is accelerated due to the fact that lubrication inside the gear box is insufficient after oil leakage of an existing device, also solves the problems that energy conversion efficiency is reduced after oil leakage, fan efficiency is reduced, and energy consumption is increased, reduces maintenance cost of the device, and improves working efficiency of the device. And the service life of the gear box is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation equipment, in particular to an end cover for collecting oil at the input end of a heavy gear box. Background Art

[0002] The gearbox in a wind turbine is a crucial mechanical component. Its primary function is to transmit the power generated by the wind rotor to the generator, ensuring it achieves the desired speed. Typically, the rotor's speed is very low, far below the required generator speed. This speed is achieved through the gearbox's gear pair, which is why it's also called a speed increaser.

[0003] The Dazhong PPSC1290 gearbox frequently experiences oil leakage at the input end of the tower. This leakage leads to insufficient lubrication within the gearbox, increasing friction between the gears and accelerating gear wear, significantly reducing the gearbox's service life. Oil leakage also reduces energy conversion efficiency, thereby reducing wind turbine efficiency and increasing energy consumption. Gearbox leaks require regular lubrication. Furthermore, excessive wear particles may form within the gearbox, necessitating regular oil replacement and cleaning. These maintenance tasks increase repair costs and extend maintenance intervals. Utility Model Content

[0004] The main purpose of the utility model is to provide an end cover for collecting oil at the input end of a large and heavy gearbox, which overcomes the above technical problems.

[0005] In order to achieve the above purpose, the present invention proposes the following technical solutions:

[0006] An end cover for collecting oil at the input end of a large and heavy gearbox, comprising:

[0007] The end cover body is disc-shaped as a whole and has a cavity inside;

[0008] The end cover oil outlet device is arranged at one side edge of the end cover body 1 and connected to the cavity;

[0009] The metal clamp is sleeved on the outer ring of the end cover body;

[0010] An oil inlet hole is provided on a side of the end cover body away from the end cover oil outlet device.

[0011] Furthermore, the end cover body is divided into a first part and a second part, the first part is located at the upper part of the end cover body, and the second part is located at the lower part of the end cover body. The first part is connected to the second part and fixed together by a metal clamp.

[0012] Furthermore, an oil passage is provided inside the end cover oil outlet device, one end of the oil passage is connected to the cavity 2, and the other end is connected to the oil return pipeline.

[0013] Furthermore, one end of the oil return pipeline away from the oil passage is connected to the gear box oil pool.

[0014] Furthermore, a nut is provided on the metal clamp for adjusting the tightness of the metal clamp.

[0015] Furthermore, the end cover body and the end cover oil outlet device are integrally formed.

[0016] Furthermore, the end cover body and the end cover oil outlet device are welded.

[0017] Furthermore, the material of the end cover body and the end cover oil outlet device includes but is not limited to aluminum alloy.

[0018] The utility model solves the problem of insufficient lubrication inside the gear box caused by oil leakage in existing equipment, which increases the friction between the gears and accelerates the wear of the gears. It also solves the problem of reduced energy conversion efficiency after oil leakage, which in turn reduces the efficiency of the fan and increases energy consumption. It reduces equipment maintenance costs and increases the service life of the gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 This is a structural diagram of a preferred embodiment of the present application.

[0021] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point a.

[0022] The above drawings include the following reference numerals:

[0023] 1. End cover body; 2. Cavity; 3. End cover oil outlet device; 4. Metal clamp; 11. First part; 12. Second part; 31. Oil passage; 41. Nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Reference below Figures 1 to 2 , the utility model is further described:

[0027] An end cover for collecting oil at the input end of a large and heavy gearbox, comprising:

[0028] The end cover body 1 is disc-shaped as a whole and has a cavity 2 inside;

[0029] The end cover oil outlet device 3 is arranged at one side edge of the end cover body 1 and connected to the cavity 2;

[0030] The metal hoop 4 is sleeved on the outer ring of the end cover body 1;

[0031] An oil inlet hole is provided on a side of the end cover body 1 away from the end cover oil outlet device 3 .

[0032] The end cover body 1 is divided into a first part 11 and a second part 12 . The first part 11 is located at the upper part of the end cover body 1 , and the second part 12 is located at the lower part of the end cover body 1 . The first part 11 and the second part 12 are connected and fixed together by a metal clamp 4 .

[0033] The end cover is installed at the input end of the wind power equipment gearbox. The main shaft cannot be easily disassembled. It is designed in the form of a first part 11 and a second part 12 for easy installation. A metal clamp 4 is used to fix it on the sealing cover of the gearbox input end.

[0034] The metal clamp 4 is provided with a nut 41 for adjusting the tightness of the metal clamp 4. The metal clamp 4 is convenient for installation and removal, and can be tightened at any time when the end cover is found to be loose.

[0035] An oil passage 31 is provided inside the end cover oil outlet device 3. One end of the oil passage 31 is connected to the cavity 2, and the other end is connected to the oil return pipeline. The oil leaked from the gear box enters the cavity 2 of the end cover body 1 through the oil inlet hole, and then under the action of gravity, the oil enters the oil passage 31 of the end cover oil outlet device 3, flows through the oil passage 31 and enters the oil return pipeline.

[0036] The end of the return oil pipeline away from the oil passage 31 is connected to the gear box oil pool. There is an oil hole next to the gear box rear box heater, and the return oil pipeline is connected to it, so that the leaked oil flows through the oil outlet below the end cover oil outlet device 3 through the return oil pipeline and returns to the gear box oil pool.

[0037] In one embodiment, the end cover body 1 and the end cover oil outlet device 3 are integrally formed, which can ensure the sealing of the entire end cover and the oil collection effect.

[0038] In another embodiment, the end cover body 1 and the end cover oil outlet device 3 are welded.

[0039] The material of the end cover body 1 and the end cover oil outlet device 3 includes but is not limited to aluminum alloy.

[0040] In this embodiment, the material of the end cover body 1 and the end cover oil outlet device 3 is 6061 aluminum alloy. 6061 aluminum alloy is a high-quality aluminum alloy product produced by a heat treatment pre-stretching process. It is a heat-treatable alloy with good formability, weldability, and machinability. It also has medium strength, a yield strength of more than 110 MPa, and a tensile strength of more than 205 MPa. It has a good use effect when installed on the gearbox of wind power equipment.

[0041] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0042] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An end cover for collecting oil at the input end of a heavy gearbox, characterized in that: include: The end cover body (1) is disc-shaped as a whole and has a cavity (2) provided therein; An end cover oil outlet device (3) is arranged at an edge of one side of the end cover body (1) and is connected to the cavity (2); A metal hoop (4) is sleeved on the outer ring of the end cover body (1); An oil inlet hole is provided on a side of the end cover body (1) away from the end cover oil outlet device (3).

2. The end cover for collecting oil at the input end of a large and heavy gearbox according to claim 1, characterized in that: The end cover body (1) is divided into a first part (11) and a second part (12), wherein the first part (11) is located at the upper part of the end cover body (1), and the second part (12) is located at the lower part of the end cover body (1), and the first part (11) and the second part (12) are connected and fixed together by the metal clamp (4).

3. The end cover for collecting oil at the input end of a large and heavy gearbox according to claim 1, characterized in that: An oil passage (31) is provided inside the end cover oil outlet device (3), one end of the oil passage (31) is connected to the cavity (2), and the other end is connected to the oil return pipeline.

4. The end cover for collecting oil at the input end of a large and heavy gearbox according to claim 3, characterized in that: One end of the oil return pipeline away from the oil passage (31) is connected to the gear box oil pool.

5. The end cover for collecting oil at the input end of a large and heavy gearbox according to claim 1, characterized in that: The metal hoop (4) is provided with a nut (41) for adjusting the tightness of the metal hoop (4).

6. The end cover for collecting oil at the input end of a heavy gearbox according to claim 1, characterized in that: The end cover body (1) and the end cover oil outlet device (3) are integrally formed.

7. The end cover for collecting oil at the input end of a large and heavy gearbox according to claim 1, characterized in that: The end cover body (1) and the end cover oil outlet device (3) are welded.

8. The end cover for collecting oil at the input end of a large and heavy gearbox according to claim 1, characterized in that: The material of the end cover body (1) and the end cover oil outlet device (3) includes but is not limited to aluminum alloy.

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