CN209943487U

CN209943487U - Wind-powered electricity generation gear box heater

Info

Publication number: CN209943487U
Application number: CN201920432747.2U
Authority: CN
Inventors: 马腾飞; 李瑞涛; 卞惟旗
Original assignee: Dalian Ruier Power Equipment Co Ltd
Current assignee: Dalian Ruier Power Equipment Co Ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-01-14
Anticipated expiration: 2029-04-01

Abstract

The utility model relates to a heater technical field, concretely relates to wind-powered electricity generation gear box heater, including oil tank, pivot, spiral heating plate, driving motor, defeated oil pipe, auxiliary heating device, radiator fan and oil pump, the oil tank is equipped with oil inlet and oil-out, the oil inlet of oil tank and the exit linkage of oil pump, driving motor fixes in the oil tank bottom, the vertical setting of pivot passes oil tank and driving motor's motor shaft fixed connection at the inside and pivot lower extreme of oil tank, the spiral heating plate is fixed in the pivot, auxiliary heating device fixes at the oil tank top and is connected through the oil-out of defeated oil pipe with the oil tank, radiator fan fixes in the auxiliary heating device side. The heater can heat lubricating oil of the gear box fast, can avoid degradation and deterioration of lubricating oil caused by overhigh local oil temperature, is independently installed outside the gear box, integrates heat dissipation function, and is convenient to install and maintain.

Description

Wind-powered electricity generation gear box heater

Technical Field

The utility model relates to a heater technical field, concretely relates to wind-powered electricity generation gear box heater.

Background

The gear box is an important component of the wind turbine generator and mainly has the function of transmitting power generated by a wind wheel under the action of wind power to a generator and enabling the generator to obtain corresponding rotating speed. The speed of the wind wheel is usually very low, and the speed of the wind wheel is far less than the speed required by the generator to generate electricity, and the speed is increased by the speed increasing action of a gear pair of the gearbox, so the gearbox is also called as a speed increasing box.

The purpose of the wind power gear box heater is to provide lubricating oil with proper viscosity through heating, so that the fluidity of the lubricating oil is improved, and conveying or splash lubrication of a circulating system is facilitated. Particularly, a low-temperature type unit which runs in a low-temperature and cold region can be normally started only by heating lubricating oil of a gear box. The immersion heater is usually installed in the present wind-powered electricity generation gear box, and the heat mainly relies on the convection current of oil to conduct, if lubricating oil does not flow, carries out the heat transfer through natural convection, then can lead to the rate of heating slow and the local overheat of lubricating oil and degrade rotten, and the oil temperature in the gear box can rise when the gear box moves a period of time back, needs to start heat abstractor heat dissipation, and the heating and the heat abstractor of present gear box independently install, bring inconvenience for installation and maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the above-mentioned problem that exists, designed a wind-powered electricity generation gear box heater, this heater can heat the lubricating oil of gear box fast, can avoid local too high temperature of oil to lead to lubricating oil degradation rotten, and this heater is independently installed in the gear box outside, and collects the heat dissipation function in an organic whole, and both easy to assemble maintain can dispel the heat when the oil temperature is too high again.

In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:

a wind power gear box heater comprises an oil tank, a rotating shaft, a spiral heating plate, a driving motor, an oil conveying pipe, an auxiliary heating device, a cooling fan and an oil pump, wherein the oil tank is provided with an oil inlet and an oil outlet;

the auxiliary heating device comprises a first plate-shaped oil tank, a second plate-shaped oil tank, a third plate-shaped oil tank, a fourth plate-shaped oil tank and a fifth plate-shaped oil tank which are vertically fixed at the top of the oil tank, wherein the first plate-shaped oil tank, the second plate-shaped oil tank, the third plate-shaped oil tank, the fourth plate-shaped oil tank and the fifth plate-shaped oil tank are mutually parallel and sequentially communicated through a connecting pipe, heating wires are fixed in the first plate-shaped oil tank, the second plate-shaped oil tank, the third plate-shaped oil tank, the fourth plate-shaped oil tank and the fifth plate-shaped oil tank, one end of an oil conveying pipe is connected with an oil outlet of the oil tank, the other end of the oil conveying pipe.

Further, an oil temperature sensor is fixed at an inlet of the oil pump, a PLC controller is fixed on the outer side of the oil tank, and the oil temperature sensor, the heating wires, the spiral heating pieces and the cooling fan are all connected with the PLC controller.

Furthermore, the first plate-shaped oil tank, the second plate-shaped oil tank, the third plate-shaped oil tank, the fourth plate-shaped oil tank and the fifth plate-shaped oil tank are the same in size, the length, the width and the height are respectively 25cm, 3cm and 20cm, and the interval between every two adjacent plate-shaped oil tanks is 2 cm.

Furthermore, a sealing washer is arranged at the joint of the lower end of the rotating shaft and the oil tank, so that oil leakage at the joint of the lower end of the rotating shaft and the oil tank is avoided.

Furthermore, a conductive slip ring is arranged at the joint of the rotating shaft and the motor shaft of the driving motor, and the spiral heating plate is communicated with an external power supply through the conductive slip ring.

Furthermore, a support leg is fixed at the bottom of the oil tank.

The utility model has the advantages that: a rotating shaft is arranged in an oil tank of the heater, and a spiral heating sheet is fixed on the rotating shaft, so that lubricating oil entering the oil tank can be stirred and heated, the lubricating oil in the gear box can be rapidly heated by matching with an auxiliary heating device, the lubricating oil in the heater can be promoted to flow by an oil pump, and the degradation and deterioration of the lubricating oil caused by overhigh local oil temperature can be avoided by the stirring of the spiral heating sheet; the power of heater strip and spiral heating plate is disconnected, and radiator fan's forced air cooling heat dissipation can dispel the heat to lubricating oil again, and this heater is independently installed in the gear box outside to collect heat dissipation function in an organic whole, both easy to assemble maintain can dispel the heat when the oil temperature is too high again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an external structure of a wind turbine gearbox heater;

FIG. 2 is a schematic diagram of the internal structure of a wind turbine gearbox heater.

In the drawings, the components represented by the respective reference numerals are listed below:

the oil-water heating device comprises an oil tank 1, an oil inlet 11, an oil outlet 12, a support leg 13, a rotating shaft 2, a spiral heating plate 21, a driving motor 22, a conductive slip ring 23, an oil delivery pipe 3, a first plate-shaped oil tank 4, a second plate-shaped oil tank 41, a third plate-shaped oil tank 42, a fourth plate-shaped oil tank 43, a fifth plate-shaped oil tank 44, a heating wire 45, a connecting pipe 5, an oil pump 6, an oil temperature sensor 7, a cooling fan 8 and a PLC 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, a wind power gear box heater comprises an oil tank 1, a rotating shaft 2, a spiral heating sheet 21, a driving motor 22, an oil delivery pipe 3, an auxiliary heating device, a cooling fan 8 and an oil pump 6, wherein the oil tank 1 is provided with an oil inlet 11 and an oil outlet 12, the oil inlet 11 of the oil tank 1 is connected with an outlet of the oil pump 6, the driving motor 22 is fixed at the bottom of the oil tank 1, the rotating shaft 2 is vertically arranged in the oil tank 1, the lower end of the rotating shaft 1 penetrates through the oil tank 1 to be fixedly connected with a motor shaft of the driving motor 22, the spiral heating sheet 21 is fixed on the rotating shaft 2, the auxiliary heating device is fixed at the top of the oil tank 1 and is connected with the oil outlet 12 of the oil tank 1 through the;

the auxiliary heating device comprises a first plate-shaped oil tank 4, a second plate-shaped oil tank 41, a third plate-shaped oil tank 42, a fourth plate-shaped oil tank 43 and a fifth plate-shaped oil tank 44 which are vertically fixed at the top of the oil tank 1, wherein the first plate-shaped oil tank 4, the second plate-shaped oil tank 41, the third plate-shaped oil tank 42, the fourth plate-shaped oil tank 43 and the fifth plate-shaped oil tank 44 are parallel to each other and are communicated through a connecting pipe 5 in sequence, heating wires 45 are fixed in the first plate-shaped oil tank 4, the second plate-shaped oil tank 41, the third plate-shaped oil tank 42, the fourth plate-shaped oil tank 43 and the fifth plate-shaped oil tank 44, one end of the oil conveying pipe 3 is connected with an oil outlet 12 of the oil tank 1, the other end of the oil.

Wherein, the import department of oil pump 6 is fixed with oil temperature sensor 7, the oil tank 1 outside is fixed with PLC controller 9, oil temperature sensor 7, heater strip 45, spiral heating plate 21 and radiator fan 8 all are connected with PLC controller 9.

The first plate-shaped oil tank 4, the second plate-shaped oil tank 41, the third plate-shaped oil tank 42, the fourth plate-shaped oil tank 43 and the fifth plate-shaped oil tank 44 are identical in size, 25cm, 3cm and 20cm in length, width and height, and the interval between the adjacent plate-shaped oil tanks is 2 cm.

Wherein, the junction of 2 lower extremes of pivot and oil tank 1 is equipped with seal ring, avoids the junction oil leak of 2 lower extremes of pivot and oil tank 1.

Wherein, a conductive slip ring 23 is arranged at the connection part of the rotating shaft 2 and the motor shaft of the driving motor 22, and the spiral heating plate 21 is communicated with an external power supply through the conductive slip ring 23.

Wherein, a support leg 13 is fixed at the bottom of the oil tank 1.

One specific application of this embodiment is: the inlet of an oil return pipe and an oil pump 6 are communicated with an oil pool of a gear box, a high temperature threshold value and a low temperature threshold value are set by a PLC (programmable logic controller) 9, lubricating oil in the gear box is pumped into an oil tank 1 by the oil pump 6, a driving motor 22 drives a spiral heating sheet 21 on a rotating shaft 2 to rotate, the lubricating oil in the oil tank 1 is stirred and heated, the lubricating oil heated by the spiral heating sheet 21 overflows into an auxiliary heating device at the top of the oil tank 1 through an oil conveying pipe 3, the lubricating oil further passes through a heating wire 45 in a first plate-shaped oil tank 4, a second plate-shaped oil tank 41, a third plate-shaped oil tank 42, a fourth plate-shaped oil tank 43 and a fifth plate-shaped oil tank 44 and then flows back to the gear box from the oil return pipe, the PLC 9 can monitor the temperature of the lubricating oil in the gear box through an oil temperature sensor 7, the oil temperature sensor 7, the PLC 9 starts the spiral heating sheet 21 and the heating wire 45 to heat the lubricating oil, and cuts off the power supply of the cooling fan 8; when the gearbox runs for a period of time, the oil temperature in the gearbox is higher than a high-temperature threshold value, the PLC 9 cuts off the power supply of the spiral heating sheets 21 and the heating wires 45, and the cooling fan 8 is started to cool the lubricating oil. A rotating shaft 2 is arranged in an oil tank 1 of the heater, a spiral heating sheet 21 is fixed on the rotating shaft 2, lubricating oil entering the oil tank 1 can be stirred and heated, the lubricating oil of a gear box can be rapidly heated by matching with an auxiliary heating device, an oil pump 6 can promote the flowing of the lubricating oil in the heater, and the degradation and deterioration of the lubricating oil caused by overhigh local oil temperature can be avoided by the stirring of the spiral heating sheet 21; the power of heater strip 45 and spiral heating plate 21 is disconnected, and the forced air cooling heat dissipation of cooperation radiator fan 8 can dispel the heat to lubricating oil again, and this heater is independently installed in the gear box outside to collect heat dissipation function in an organic whole, both easy to assemble maintain can dispel the heat the cooling when the oil temperature is too high again.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a wind-powered electricity generation gear box heater which characterized in that: the oil tank is provided with an oil inlet and an oil outlet, the oil inlet of the oil tank is connected with an outlet of the oil pump, the driving motor is fixed at the bottom of the oil tank, the rotating shaft is vertically arranged in the oil tank, the lower end of the rotating shaft penetrates through the oil tank and is fixedly connected with a motor shaft of the driving motor, the spiral heating plate is fixed on the rotating shaft, the auxiliary heating device is fixed at the top of the oil tank and is connected with the oil outlet of the oil tank through the oil pipe, and the cooling fan is fixed on the side face of the auxiliary heating device;

2. The wind power gearbox heater of claim 1, wherein: an oil temperature sensor is fixed at an inlet of the oil pump, a PLC (programmable logic controller) is fixed on the outer side of the oil tank, and the oil temperature sensor, the heating wires, the spiral heating pieces and the cooling fan are all connected with the PLC.

3. The wind power gearbox heater of claim 1, wherein: the first plate-shaped oil tank, the second plate-shaped oil tank, the third plate-shaped oil tank, the fourth plate-shaped oil tank and the fifth plate-shaped oil tank are the same in size, and the length, the width and the height of the first plate-shaped oil tank are respectively 25cm, 3cm and 20 cm.

4. The wind power gearbox heater of claim 1, wherein: and a sealing gasket is arranged at the joint of the lower end of the rotating shaft and the oil tank.

5. The wind power gearbox heater of claim 1, wherein: and a conductive slip ring is arranged at the joint of the rotating shaft and a motor shaft of the driving motor, and the spiral heating plate is communicated with an external power supply through the conductive slip ring.

6. The wind power gearbox heater of claim 1, wherein: and a support leg is fixed at the bottom of the oil tank.