Gearbox lubrication device

Abstract

The present invention discloses a gearbox lubrication device, including a box body, an oil pipe is provided through the top of the box body, an electric valve is provided at the bottom of the oil pipe, a circulation pipeline is provided at the part of the oil pipe in the box body, the circulation pipeline is provided along the inner wall of the box body, a rotating ring is fixedly connected to the upper and lower sides of the circulation pipeline respectively, and the two rotating rings are rotatably connected to the inner wall of the box body, the circulation pipeline is connected to a lubrication dropper, and a connection structure is provided at the connection between the circulation pipeline and the oil pipe, the connection structure includes a connection block embedded in the inner wall of the oil pipe, the connection block is rotatably connected to the inner wall of the oil pipe, and a liquid separation port is provided inside the connection block. The present invention drives the circulation pipeline to rotate through the drive of a motor, reduces the problem of internal blockage, and avoids the phenomenon of poor lubrication. At the same time, the circulation pipeline is provided along the inner wall of the box body, which is convenient for reducing the oil temperature of the lubricating oil.

Description

Technical Field

[0001] The invention relates to the technical field of gear box lubrication, and in particular to a gear box lubrication device. Background Art

[0002] The gearbox lubrication system of the wind turbine generator set adopts the motor pump and mechanical pump to supply oil, and the oil distributor passes through the filter device to force lubrication of each lubrication point of the gearbox, and uses the temperature control valve to mechanically control the circulation direction of the lubricating oil for cooling.

[0003] During use, due to the long-term use of the gearbox, the internal blockage problem caused by the aging of the oil pipe will affect the lubricating oil transportation of the gearbox. At the same time, the reduction in the transportation speed of the lubricating oil will lead to low heat dissipation efficiency and high oil temperature, which will cause malfunction and shutdown. Based on this, the present invention designs a gearbox lubrication device. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a wind turbine gearbox lubrication device.

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

[0006] The gearbox lubrication device comprises a box body, an oil pipe is provided through the top of the box body, an electric valve is provided at the bottom of the oil pipe, a circulation pipeline is provided at the part of the oil pipe inside the box body, the circulation pipeline is provided along the inner wall of the box body, a rotating ring is fixedly connected to the upper and lower sides of the circulation pipeline respectively, the two rotating rings are rotatably connected to the inner wall of the box body, a lubrication drip tube is provided in communication with the circulation pipeline, and a connecting structure is provided at the connection between the circulation pipeline and the oil pipe.

[0007] Preferably, the connecting structure includes a connecting block embedded in the inner wall of the oil pipe, the connecting block is rotatably connected to the inner wall of the oil pipe, a liquid separation port is opened inside the connecting block, and the connection between the liquid separation port and the oil pipe and the circulation pipeline are respectively provided with three opening parts, and the two opening parts connected to the circulation pipeline are connected to the electric valve together.

[0008] Preferably, a connecting sleeve is sleeved on the outer side of the bottom of the circulation pipeline, and the connecting sleeve is symmetrically arranged about the center line axis of the box body. A motor is fixedly connected to the bottom of the connecting sleeve, and the output shaft of the motor passes through the bottom wall of the box body and is glued and fixed to the connecting sleeve. A chassis is arranged on the outer side of the motor, and the chassis is fixedly arranged on the outer bottom wall of the box body.

[0009] Preferably, the portion of the oil pipe outside the casing is connected with a shunt pipe, and a one-way valve is respectively sealed at two connection points between the shunt pipe and the oil pipe.

[0010] Preferably, an opening is formed through the vertical section of the shunt pipe, the opening is close to the oil pipe, and a breathable membrane is sealed and fixedly connected to the opening.

[0011] Preferably, the side wall of the oil pipe is rotatably connected to a rotating shaft, the rotating shaft is located on the inner part of the shunt pipe, one end of the rotating shaft located in the oil pipe is fixedly connected to an external micro motor, and the end of the rotating shaft away from the oil pipe is fixedly connected to a heat dissipation blade, and the heat dissipation blade faces the breathable membrane.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The circulation pipeline is driven by the motor to rotate. The advantage of this is that when the oil pipe is aged, the rotation can reduce the internal blockage problem and avoid poor lubrication. At the same time, the circulation pipeline is arranged along the inner wall of the box, so that good heat exchange can occur with the inner wall of the box during rotation, which is convenient for reducing the oil temperature of the lubricating oil.

[0014] 2. By setting up a breathable membrane and heat dissipation blades, when the oil temperature is too high, it enters the shunt pipe for heat dissipation during circulation. The heat exchange between the breathable membrane and the air and the air cooling of the heat dissipation blades can reduce the shutdown problem caused by excessive oil temperature. The breathable membrane is set on the side close to the oil pipe, so the discharged heat will not directly affect the external environment, avoiding the problem of hot air burns to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the gear box lubrication device proposed by the present invention;

[0016] Figure 2 This is an enlarged schematic diagram of part A of the gear box lubrication device proposed by the present invention.

[0017] In the figure: 1 box body, 2 oil pipe, 3 electric valve, 4 circulation pipeline, 5 rotating ring, 6 lubrication dropper, 7 connecting block, 8 liquid distribution port, 9 connecting sleeve, 10 motor, 11 chassis, 12 shunt pipe, 13 one-way valve, 14 breathable membrane, 15 rotating shaft, 16 heat dissipation blade. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-2The gear box lubrication device comprises a box body 1, an oil pipe 2 is penetrated through the top of the box body 1, an electric valve 3 is arranged at the bottom of the oil pipe 2, a circulation pipeline 4 is arranged at the part of the oil pipe 2 in the box body 1, the circulation pipeline 4 is arranged along the inner wall of the box body 1, and a rotating ring 5 is fixedly connected to the upper and lower sides of the circulation pipeline 4 respectively, and the two rotating rings 5 ​​are rotatably connected to the inner wall of the box body 1, a lubrication drip tube 6 is arranged in communication with the circulation pipeline 4, and a connecting structure is arranged at the connection between the circulation pipeline 4 and the oil pipe 2.

[0020] The connection structure includes a connection block 7 embedded in the inner wall of the oil pipe 2, the connection block 7 is rotatably connected to the inner wall of the oil pipe 2, a liquid separation port 8 is provided inside the connection block 7, and the connection between the liquid separation port 8 and the oil pipe and the circulation pipeline 4 are respectively provided with three opening parts, and the two opening parts connected to the circulation pipeline 4 are connected to the electric valve 3. The electric valve 3 is used to control the output state of the lubricating oil. The opening temperature can be selected according to the demand, and the options of closed-half open-fully open can be selected. A connecting sleeve 9 is sleeved on the outer side of the bottom of the circulation pipeline 4, and the connecting sleeve 9 is arranged symmetrically with the center line of the box body 1. A motor 10 is fixedly connected to the bottom of the connecting sleeve 9. The output shaft of the motor 10 passes through the bottom wall of the box body 1 and is glued and fixed to the connecting sleeve 9. A chassis 11 is arranged on the outer side of the motor 10, and the chassis 11 is fixedly arranged on the outer bottom wall of the box body 1. Through the output rotation of the motor 10, the connecting sleeve 9 can drive the circulation pipeline 4 to rotate, so that on the one hand, the lubrication dropper 6 can be lubricated at multiple angles, and on the other hand, the circulation pipeline 4 can reduce the risk of blockage during low-speed rotation to avoid affecting the output of the lubricating oil.

[0021] The part of the oil pipe 2 located outside the box body 1 is connected to a shunt pipe 12, and a one-way valve 13 is respectively sealed at the two connection points between the shunt pipe 12 and the oil pipe 2. The flow direction of the lubricating oil is controlled by the two one-way valves 13 so that it only flows in one direction. An opening is opened through the vertical section of the shunt pipe 12, and the opening is close to the direction of the oil pipe 2. A breathable membrane 14 is sealed and fixedly connected to the opening. The breathable membrane 14 is configured so that only gas can pass through the breathable membrane 14, so that the breathable membrane 14 can accelerate the heat exchange between the lubricating oil in the shunt pipe 12 and the air, and also has a smaller impact on the lubricating oil. The side wall of the oil pipe 2 is rotatably connected with a rotating shaft 15, and the rotating shaft 15 is located at the inner side of the shunt pipe 12. One end of the rotating shaft 15 located in the oil pipe 2 is fixedly connected to an external micro-motor, and the end of the rotating shaft 15 away from the oil pipe 2 is fixedly connected with a heat dissipation blade 16, and the heat dissipation blade 16 is directly opposite to the breathable membrane 14. Air cooling is achieved by the rotation of the heat dissipation blade 16, thereby improving the heat dissipation effect of the lubricating oil.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gearbox lubrication device, comprising a gearbox body (1), characterized in that: An oil pipe (2) is provided through the top of the box (1), an electric valve (3) is provided at the bottom of the oil pipe (2), a circulation pipeline (4) is provided on the portion of the oil pipe (2) inside the box (1), the circulation pipeline (4) is provided along the inner wall of the box (1), a rotating ring (5) is fixedly connected to the upper and lower sides of the circulation pipeline (4), and both rotating rings (5) are rotatably connected to the inner wall of the box (1), a lubrication drip pipe (6) is provided in communication with the circulation pipeline (4), and a connection structure is provided at the connection between the circulation pipeline (4) and the oil pipe (2); The connection structure comprises a connection block (7) embedded in the inner wall of the oil pipe (2), the connection block (7) being rotatably connected to the inner wall of the oil pipe (2), a liquid separation port (8) being provided inside the connection block (7), three opening portions being provided at the connection between the liquid separation port (8) and the oil pipe and the circulation pipeline (4), respectively, and two opening portions connected to the circulation pipeline (4) being connected to the electric valve (3); A connecting sleeve (9) is sleeved on the outer side of the bottom of the circulation pipeline (4), the connecting sleeve (9) is arranged symmetrically with respect to the center line of the box body (1), a motor (10) is fixedly connected to the bottom of the connecting sleeve (9), an output shaft of the motor (10) passes through the bottom wall of the box body (1) and is glued and fixed to the connecting sleeve (9), a machine box (11) is arranged on the outer side of the motor (10), and the machine box (11) is fixedly arranged on the outer bottom wall of the box body (1); The portion of the oil pipe (2) located outside the box (1) is connected to a shunt pipe (12), and two connection points between the shunt pipe (12) and the oil pipe (2) are respectively sealed with a one-way valve (13); An opening is formed through the vertical section of the shunt pipe (12), the opening is close to the oil pipe (2), and a breathable membrane (14) is sealed and fixedly connected to the opening; A rotating shaft (15) is rotatably connected to the side wall of the oil pipe (2), the rotating shaft (15) is located on the inner side of the flow dividing pipe (12), one end of the rotating shaft (15) located inside the oil pipe (2) is fixedly connected to an external micro-motor, and one end of the rotating shaft (15) away from the oil pipe (2) is fixedly connected to a heat dissipation blade (16), the heat dissipation blade (16) is directly opposite to the breathable membrane (14).

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