Heat dissipation and ventilation assembly for oil cooling fan of gearbox of wind power generation unit

Abstract

The utility model discloses a wind power generation set gear box oil cooling fan heat dissipation ventilation assembly which comprises an installation base used for installing a gear box body, the gear box body is provided with an input shaft and an output shaft, and the wind power generation set gear box oil cooling fan heat dissipation ventilation assembly further comprises a heat dissipation cooling fan installed on the installation base. A circulation heat dissipation assembly facilitating circulation heat dissipation of gearbox oil in the gearbox body is arranged on the gearbox body. According to the heat dissipation and ventilation assembly for the gearbox oil cooling fan of the wind power generation set, in the process that the gearbox body works on the wind power generation set, ventilation and heat dissipation are conducted on gearbox oil at different positions in the gearbox body through cooperation of the circulation heat dissipation assembly and the heat dissipation cooling fan, and the heat dissipation and ventilation effect on the gearbox oil is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generation, and more specifically, it relates to a heat dissipation and ventilation component of an oil-cooled fan for a gearbox of a wind power generation unit. Background Art

[0002] The gearbox in a wind power generation unit is an important mechanical component, and its main function is to transmit the power generated by the wind turbine under the action of wind to the generator and make it obtain the corresponding rotational speed. When the gearbox is working, the gearbox oil inside effectively improves the transmission efficiency of the gears and prevents the gears and components from corrosion and rust.

[0003] When the temperature of the gearbox oil is too high, the viscosity of the gearbox oil will decrease, and a sufficient oil film thickness cannot be formed in the gear meshing area, the extreme pressure resistance performance decreases, and it is easy to cause scratches and wear in the meshing area. Therefore, when the gearbox of the wind power generation unit is operating, a cold fan is required to dissipate heat and ventilate the gearbox oil on the gearbox. During the heat dissipation and ventilation process of the cold fan, the cold fan can only dissipate heat and ventilate the gearbox oil at the blowing position on the gearbox, and the effect of heat dissipation and ventilation is low, which affects the ventilation and heat dissipation of the gearbox oil.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is as follows:

[0006] A heat dissipation and ventilation component of an oil-cooled fan for a gearbox of a wind power generation unit, including a mounting seat for mounting on a gearbox body. An input shaft and an output shaft are provided on the gearbox body. The component further includes a heat dissipation cold fan mounted on the mounting seat, and a circulating heat dissipation component is provided on the gearbox body to facilitate the circulating heat dissipation of the gearbox oil inside the gearbox body.

[0007] The circulating heat dissipation component includes a circulating pipe and a U-shaped pipe mounted on the gearbox body. One end of the circulating pipe is fixedly connected to one end of the U-shaped pipe in communication. A pumping and pressing component for circulating the gearbox oil is provided on the U-shaped pipe.

[0008] The pumping and pressing component includes two one-way valves mounted on the U-shaped pipe. The conduction directions of the two one-way valves are from the inside of the gearbox body to the U-shaped pipe. A piston pipe is fixedly connected to the U-shaped pipe in communication. The piston pipe is located between the two one-way valves. A piston plate is connected to the piston pipe through a connecting component, and the piston plate is slidably connected to the piston pipe.

[0009] The connecting component includes a push rod slidably connected to one end of the piston tube. One end of the push rod is fixed to the piston plate. A spring is sleeved inside the push rod, and two ends of the spring are respectively connected to the piston plate and the inner wall of the piston tube. An extrusion component for extruding the push rod is arranged on the output shaft.

[0010] The extrusion component includes a driving disk arranged outside the gear box body. A plurality of protrusions for abutting and pushing one end of the push rod are fixedly arranged in an annular array on the driving disk. A driving component for driving the driving disk is arranged on the gear box body.

[0011] The driving component includes a fixing frame fixed outside the gear box body. A driving motor for driving the driving disk is installed on the fixing frame.

[0012] The circulating pipe is arranged in a wavy shape.

[0013] The utility model has the following beneficial effects compared with the prior art:

[0014] For the oil-cooling fan heat dissipation and ventilation component of the wind power generation group gear box of the utility model, during the operation of the gear box body on the wind power generation group, through the cooperation of the circulating heat dissipation component and the heat dissipation cooling fan, the gear box oil at different positions inside the gear box body is ventilated and cooled, ensuring the effect of ventilating and cooling the gear box oil.

[0015] The following further describes in detail the specific implementation manners of the utility model with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the drawings:

[0017] Figure 1 is a schematic diagram of the overall external structure of the utility model;

[0018] Figure 2 is a schematic diagram of the structure of the circulating heat dissipation component of the utility model;

[0019] Figure 3 is a schematic diagram of the extrusion component and the driving component of the utility model;

[0020] Figure 4 is a schematic diagram of the connecting component, the pumping and pressing component and the extrusion component of the utility model.

[0021] In the figure: 1 - mounting seat; 2 - gear box body; 201 - input shaft; 202 - output shaft; 3 - heat dissipation cooling fan; 401 - circulating pipe; 402 - U-shaped pipe; 501 - one-way valve; 502 - piston tube; 503 - piston plate; 601 - push rod; 602 - spring; 701 - driving disk; 702 - protrusion; 801 - fixing frame; 802 - driving motor. DETAILED DESCRIPTION OF THE INVENTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0023] As Figures 1 to 4 shown, the wind power generation unit gearbox oil-cooled fan heat dissipation and ventilation assembly includes a mounting seat 1 for mounting the gearbox body 2. An input shaft 201 and an output shaft 202 are provided on the gearbox body 2. The assembly further includes a heat dissipation cold fan 3 mounted on the mounting seat 1. A circulation heat dissipation assembly for facilitating the circulation and heat dissipation of the gearbox oil inside the gearbox body 2 is provided on the gearbox body 2. During the operation of the gearbox body 2 in the wind power generation unit, through the cooperation of the circulation heat dissipation assembly and the heat dissipation cold fan 3, the gearbox oil at different positions inside the gearbox body 2 is ventilated and cooled, ensuring the effect of heat dissipation and ventilation of the gearbox oil.

[0024] The circulation heat dissipation assembly includes a circulation pipe 401 and a U-shaped pipe 402 mounted on the gearbox body 2. One end of the circulation pipe 401 is fixedly connected to communicate with one end of the U-shaped pipe 402. A pumping and pressing assembly for the circulation of the gearbox oil is provided on the U-shaped pipe 402. Through the pumping and pressing assembly, the gearbox oil inside the gearbox body 2 circulates between the circulation pipe 401, the U-shaped pipe 402, and the gearbox body 2. During the circulation process, the gearbox oil dissipates heat outward by virtue of the heat conductivity of the circulation pipe 401 and the U-shaped pipe 402.

[0025] The pumping and pressing assembly includes two one-way valves 501 mounted on the U-shaped pipe 402. The conduction directions of the two one-way valves 501 are from the inside of the gearbox body 2 to the U-shaped pipe 402. A piston pipe 502 is fixedly connected to communicate with the U-shaped pipe 402. The piston pipe 502 is located between the two one-way valves 501. A piston plate 503 is connected to the piston pipe 502 through a connection assembly. The piston plate 503 is slidably connected to the piston pipe 502. Through the mutual cooperation of the connection assembly and the extrusion assembly, the piston plate 503 reciprocates on the piston pipe 502 as the driving disk 701 rotates. Due to the conduction directions of the two one-way valves 501 being from the inside of the gearbox body 2 to the U-shaped pipe 402, through the reciprocating movement of the piston plate 503, the gearbox oil inside the gearbox body 2 is sucked into the U-shaped pipe 402 and is squeezed and then flows back to the inside of the gearbox body 2 through the circulation pipe 401, enabling the gearbox oil inside the gearbox body 2 to circulate between the circulation pipe 401, the U-shaped pipe 402, and the gearbox body 2.

[0026] The connecting component includes a push rod 601 slidably connected to one end of the piston tube 502. One end of the push rod 601 is fixed to the piston plate 503. A spring 602 is sleeved inside the push rod 601. Two ends of the spring 602 are respectively connected to the piston plate 503 and the inner wall of the piston tube 502. An extrusion component for extruding the push rod 601 is arranged on the output shaft 202. The extrusion component includes a driving disk arranged outside the gear box body. A plurality of protrusions for abutting and pushing one end of the push rod are fixedly arranged in an annular array on the driving disk. A driving component for driving the driving disk is arranged on the gear box body. Through the driving component, each protrusion 702 on the driving disk 701 abuts against one end of the push rod 601 in turn. Through the abutting and pushing action of each protrusion 702 against one end of the push rod 601 and the resetting action of the spring 602 on the push rod 601 after being stressed, the push rod 601 and the piston plate 503 at one end of the push rod 601 reciprocate on the piston tube 502 along with the rotation of the driving disk 701.

[0027] The driving component includes a fixing frame 801 fixed to the outside of the gear box body 2. A driving motor 802 for driving the driving disk 701 is installed on the fixing frame 801. Through the driving motor 802 on the fixing frame 801, the driving disk 701 is driven to rotate.

[0028] The circulation pipe 401 is arranged in a wavy shape. Because the circulation pipe 401 is arranged in a wavy shape, the circulation path is increased, and the effect of circulation heat dissipation is improved.

[0029] During the operation of the gear box body 2 in the wind power generation unit, the power generated by the external wind turbine blades is transmitted to the generator through the speed change of the input shaft 201 and the output shaft 202 on the gear box body 2. During the power generation operation, through the driving component, each protrusion 702 on the driving disk 701 abuts against one end of the push rod 601 in turn. Through the abutting and pushing action of each protrusion 702 against one end of the push rod 601 and the resetting action of the spring 602 on the push rod 601 after being stressed, the push rod 601 and the piston plate 503 at one end of the push rod 601 reciprocate on the piston tube 502 along with the rotation of the driving disk 701;

[0030] Because the conduction directions of the two one-way valves 501 are from the inside of the gear box body 2 to the U-shaped pipe 402, through the reciprocating movement of the piston plate 503, the gear box oil inside the gear box body 2 is sucked into the U-shaped pipe 402 and is extruded and flows back to the inside of the gear box body 2 through the circulation pipe 401, so that the gear box oil inside the gear box body 2 circulates among the circulation pipe 401, the U-shaped pipe 402 and the gear box body 2. During the circulation process, the gear box oil dissipates heat outward by means of the heat conductivity of the circulation pipe 401 and the U-shaped pipe 402. And because the circulation pipe 401 is arranged in a wavy shape, the circulation path is increased, and the effect of circulation heat dissipation is improved;

[0031] During the gearbox oil circulation process, the heat dissipation cooling fan 3 dissipates heat and ventilates the gearbox oil during the circulation process, facilitating the heat dissipation cooling fan 3 to ventilate and dissipate heat from the gearbox oil at different positions inside the gearbox body 2, ensuring the effect of heat dissipation and ventilation for the gearbox oil.

Claims

1. Wind turbine gearbox oil cooling fan heat dissipation and ventilation components, including: A mounting seat (1) for mounting a gear box (2), wherein the gear box (2) is provided with an input shaft (201) and an output shaft (202); It is characterized by further comprising: A cooling fan (3) is mounted on the mounting seat (1), and the gear box body (2) is provided with a circulating cooling component for facilitating the circulation and cooling of gear box oil inside the gear box body (2).

2. The wind turbine gearbox oil cooling fan heat dissipation and ventilation assembly according to claim 1, characterized in that: The circulation heat dissipation component comprises a circulation pipe (401) and a U-shaped pipe (402) mounted on a gear box body (2); one end of the circulation pipe (401) is in communication and fixed connection with one end of the U-shaped pipe (402); and a pumping and pressing component for gear box oil circulation is arranged on the U-shaped pipe (402).

3. The wind turbine gearbox oil cooling fan heat dissipation and ventilation assembly according to claim 2, characterized in that: The pumping and pressing assembly comprises two one-way valves (501) installed on a U-shaped tube (402), the conducting direction of the two one-way valves (501) is from the interior of the gear box (2) to the U-shaped tube (402), a piston tube (502) is fixed on the U-shaped tube (402), the piston tube (502) is located between the two one-way valves (501), the piston tube (502) is connected to a piston plate (503) via a connecting assembly, and the piston plate (503) is slidably connected to the piston tube (502).

4. The wind turbine gearbox oil cooling fan heat dissipation and ventilation assembly according to claim 3, characterized in that: The connecting assembly comprises a push rod (601) slidably connected to one end of a piston tube (502), one end of the push rod (601) being fixed to a piston plate (503), a spring (602) being sleeved inside the push rod (601), two ends of the spring (602) being respectively connected to the piston plate (503) and the inner wall of the piston tube (502), and an extrusion assembly for extruding the push rod (601) is provided on the outer side of the gear housing (2).

5. The wind turbine gearbox oil cooling fan heat dissipation and ventilation assembly according to claim 4, characterized in that: The extrusion assembly comprises a drive disk (701) arranged outside the gear housing (2); a plurality of protrusions (702) for pushing against one end of a push rod (601) are fixed in an annular array on the drive disk (701); and a drive assembly for driving the drive disk (701) is arranged on the gear housing (2).

6. The wind turbine gearbox oil cooling fan heat dissipation and ventilation assembly according to claim 5, characterized in that: The driving assembly comprises a fixing frame (801) fixed to the outside of the gear housing (2), and a driving motor (802) for driving the driving disc (701) is mounted on the fixing frame (801).

7. The wind turbine gearbox oil cooling fan heat dissipation and ventilation assembly according to claim 2, characterized in that: The circulation pipe (401) is arranged in a wave shape.

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