阅读说明：本技术 一种风力发电变速箱油封及其制造方法 (Wind power generation gearbox oil seal and manufacturing method thereof ) 是由 许永升 于 2020-07-18 设计创作，主要内容包括：本发明公开了一种风力发电变速箱油封及其制造方法,风力发电变速箱油封包括骨架、胶圈,所述骨架为底部开口的筒状,骨架底部外侧和内侧为圆角过渡,所述骨架外侧顶部设置有上倒角,倒角为26°；骨架外侧下部与圆角连接处设置有下倒角,倒角为10°,上倒角和下倒角之间的骨架外侧有效长度大于变速箱接口的深度,所述骨架内侧压制有胶圈,所述胶圈包括止漏隔垫、主唇、副唇,所述止漏隔垫与骨架内侧壁贴合,主唇和副唇位于胶圈内侧,主唇为三角状,副唇为角状,副唇位于主唇下方,副唇内径大于主唇,所述主唇和止漏隔垫为U型,主唇外侧设置有半圆形缺口容置锁紧弹簧。本油封使用寿命长,不易渗漏；且减少胶圈对传动轴的摩擦力,降低能耗损失。(The invention discloses a wind power generation gearbox oil seal and a manufacturing method thereof, wherein the wind power generation gearbox oil seal comprises a framework and a rubber ring, the framework is in a cylindrical shape with an opening at the bottom, the outer side and the inner side of the bottom of the framework are in fillet transition, an upper chamfer is arranged at the top of the outer side of the framework, and the chamfer angle is 26 degrees; skeleton outside lower part is provided with down the chamfer with the fillet junction, and the chamfer is 10, goes up the chamfer and down the skeleton outside effective length between the chamfer and be greater than the degree of depth of gearbox interface, the inboard suppression of skeleton has the rubber ring, the rubber ring includes the leak-stopping pad, main lip, vice lip, the leak-stopping pad is laminated with the skeleton inside wall, and main lip and vice lip are located the rubber ring inboard, and main lip is three horn shapes, and vice lip is the horn shape, and vice lip is located main lip below, and vice lip internal diameter is greater than main lip, main lip and leak-stopping pad are the U type, and the main lip outside is provided with semicircular notch holding locking spring. The oil seal has long service life and is not easy to leak; and the friction force of the rubber ring to the transmission shaft is reduced, and the energy consumption loss is reduced.)

1. A wind power generation gearbox oil seal comprises a framework (1) and a rubber ring (9),

the method is characterized in that: the framework (1) is in a cylindrical shape with an opening at the bottom, the outer side and the inner side of the bottom of the framework (1) are in fillet transition, and an upper chamfer (3) is arranged at the top of the outer side of the framework (1) and has an angle of 26 degrees; a lower chamfer (2) is arranged at the joint of the lower part of the outer side of the framework (1) and the fillet, the chamfer is 10 degrees, the effective length of the outer side of the framework (1) between the upper chamfer (3) and the lower chamfer (2) is larger than the depth of a gearbox interface,

the inner side of the framework (1) is pressed with a rubber ring (9), the rubber ring (9) comprises a leakage stopping spacer (4), a main lip (7) and an auxiliary lip (8), the leakage stopping spacer (4) is attached to the inner side wall of the framework (1), the main lip (7) and the auxiliary lip (8) are positioned on the inner side of the rubber ring (9), the main lip (7) is triangular, the auxiliary lip (8) is in an angle shape, the auxiliary lip (8) is positioned below the main lip (7), and the inner diameter of the auxiliary lip (8) is larger than that of the main lip (7),

the main lip (7) and the leakage-stopping spacer (4) are U-shaped, and a semicircular notch accommodating locking spring (6) is arranged on the outer side of the main lip (7).

2. The wind power generation gearbox oil seal according to claim 1, characterized in that: the skeleton (1) is treated by phosphate film.

3. The wind power generation gearbox oil seal according to claim 1, characterized in that: and a mould pressing mark (5) is arranged on an annular plane between the upper lip of the rubber ring (9) and the leakage stopping spacer (4).

4. A manufacturing method of a wind power generation gearbox oil seal comprises the following steps:

mixing and smelting the raw materials,

rubber of the rubber ring (9) material is mixed,

cutting the glass to obtain the finished product,

the rubber is cut to length, and the rubber is cut,

the framework (1) is processed by the following steps,

the punched framework (1) is changed into golden yellow through phosphate film treatment,

pressing the mixture to obtain the finished product,

assembling the framework (1) and the rubber material, uniformly arranging the rubber material on a die, controlling the temperature to be 180-200 ℃, the time to be 130-210S and the pressing pressure to be 40-100 kg/cm²Or 100-180 kg/cm²，

The burr is removed, and the water is discharged,

removing burrs of the framework (1) and the rubber ring (9),

the outer diameter is ground, and the outer diameter,

the outer diameter of the framework (1) is ground,

the spring is put into the groove,

a spring is put in the outer side of the upper lip of the rubber ring (9),

and (6) detecting and packaging.

Technical Field

The invention belongs to the field of oil seal production and manufacturing, and particularly relates to a wind power generation gearbox oil seal and a manufacturing method thereof.

Background

The main function of the oil seal of the wind power generation gearbox is to isolate lubricating oil in the gearbox from the outside and prevent the lubricating oil from leaking. The dynamic seal is arranged between the oil seal of the wind power generation gearbox and the transmission shaft, and in the prior art, the oil seal of the wind power generation gearbox has the following problems:

1. the oil seal of the wind power generation gearbox is easy to damage and needs to be frequently replaced, and the shutdown causes the reduction of the wind power generation efficiency.

2. Oil leakage is easy to occur on the oil seal of the wind power generation gearbox, and 90% of oil leakage problems are that the oil seal of the wind power generation gearbox inside the gearbox is alternately changed by the cold and warm temperatures, so that the properties of the oil seal are changed, the phenomenon of oil dripping slowly begins at the beginning of oil leakage, and oil leakage occurs after the oil leakage is damaged for a long time;

3. the friction force of part of the oil seal of the wind power generation gearbox and the transmission shaft interferes with the transmission shaft, so that the heating phenomenon is caused, the energy consumption is increased, and the transmission efficiency of the gearbox is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to solve the problems that the oil seal of the existing wind power generation gearbox is easy to damage, needs to be frequently replaced, is easy to leak oil, and the friction between the oil seal and a transmission shaft increases energy consumption.

In order to achieve the aim, the invention provides a wind power generation gearbox oil seal which comprises a framework and a rubber ring,

the framework is in a cylindrical shape with an opening at the bottom, the outer side and the inner side of the bottom of the framework are in fillet transition, and an upper chamfer is arranged at the top of the outer side of the framework and is 26 degrees; a lower chamfer is arranged at the joint of the lower part of the outer side of the framework and the fillet, the chamfer is 10 degrees, the effective length of the outer side of the framework between the upper chamfer and the lower chamfer is larger than the depth of a gearbox interface,

the inner side of the framework is pressed with a rubber ring, the rubber ring comprises a leakage-stopping pad, a main lip and an auxiliary lip, the leakage-stopping pad is attached to the inner side wall of the framework, the main lip and the auxiliary lip are positioned on the inner side of the rubber ring, the main lip is triangular, the auxiliary lip is in an angle shape and is positioned below the main lip, the inner diameter of the auxiliary lip is larger than that of the main lip,

the main lip and the leakage-stopping spacer are U-shaped, and a semicircular notch is arranged on the outer side of the main lip to accommodate the locking spring.

Further, the skeleton is treated with a phosphate film.

Further, the annular plane between the upper lip of the rubber ring and the leakage-stopping spacer is provided with a molding mark.

Correspondingly, the manufacturing method of the oil seal of the wind power generation gearbox is provided, and comprises the following steps:

mixing and smelting the raw materials,

the rubber of the rubber ring material is mixed,

cutting the glass to obtain the finished product,

the rubber is cut to length, and the rubber is cut,

the framework is processed, and the framework is processed,

the punched framework is changed into golden yellow through phosphate film treatment,

pressing the mixture to obtain the finished product,

assembling the skeleton and the rubber material, uniformly arranging the rubber material on a die, controlling the temperature to be 180-200 ℃, the time to be 130-210S and the pressing pressure to be 40-100 kg/cm²Or 100-180 kg/cm²，

The burr is removed, and the water is discharged,

the burrs of the framework and the rubber ring are removed,

the outer diameter is ground, and the outer diameter,

the outer diameter of the framework is ground,

the spring is put into the groove,

a spring is put in the outer side of the upper lip of the rubber ring,

and (6) detecting and packaging.

The invention has the beneficial effects that:

1. according to the wind power generation gearbox oil seal, the rubber ring is matched with the framework, the framework is made of metal and is in cold fit with the gearbox interface, so that the close contact with the gearbox interface is ensured, the leakage-stopping spacer is arranged at the contact position of the rubber ring and the framework, the corrosion resistance is improved, and the leakage is avoided;

2. the auxiliary lip is larger than the main lip in inner diameter, so that the friction force of the rubber ring on the transmission shaft is reduced, and the energy consumption loss is reduced;

3. the manufacturing method of the invention prolongs the service life of the oil seal.

Drawings

FIG. 1 is a schematic cross-sectional view of a wind power transmission oil seal according to the present invention;

FIG. 2 is a flow chart of a manufacturing method of the oil seal of the wind power generation gearbox according to the invention.

In the figure: 1. the device comprises a framework, a lower chamfer, a 3 upper chamfer, a 4 leakage-stopping spacer, a 5 mould pressing mark, a 6 locking spring, a 7 main lip, a 8 auxiliary lip, a 9 rubber ring.

Detailed Description

The details of the present invention are described below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the oil seal of the wind power generation gearbox comprises a framework 1 and a rubber ring 9,

the framework 1 is in a cylindrical shape with an opening at the bottom, the outer side and the inner side of the bottom of the framework 1 are in fillet transition, and an upper chamfer 3 is arranged at the top of the outer side of the framework 1 and has an angle of 26 degrees; a lower chamfer 2 is arranged at the joint of the lower part of the outer side of the framework 1 and the fillet, the chamfer is 10 degrees, the effective length of the outer side of the framework 1 between the upper chamfer 3 and the lower chamfer 2 is larger than the depth of a gearbox interface,

1 inboard suppression of skeleton has rubber ring 9, rubber ring 9 includes leak-stopping pad 4, main lip 7, vice lip 8, leak-stopping pad 4 and the laminating of 1 inside wall of skeleton, and main lip 7 and vice lip 8 are located rubber ring 9 inboardly, and main lip 7 is three horn shapes, and vice lip 8 is the horn shape, and vice lip 8 is located main lip 7 below, and vice lip 8 internal diameter is greater than main lip 7, main lip 7 and leak-stopping pad 4 are the U type, and the main lip 7 outside is provided with semicircular notch holding locking spring 6.

In practical application, the framework 1 is treated by phosphate film.

In practical application, the annular plane between the upper lip of the rubber ring 9 and the leakage-stopping spacer 4 is provided with a molded mark 5.

As shown in fig. 2, a method for manufacturing an oil seal of a wind power generation gearbox comprises the following steps:

mixing and smelting the raw materials,

the rubber of the material of the rubber ring 9 is mixed,

cutting the glass to obtain the finished product,

the rubber is cut to length, and the rubber is cut,

the framework 1 is processed, and then,

the punched framework 1 is changed into golden yellow through phosphate film treatment,

pressing the mixture to obtain the finished product,

assembling the framework 1 and the rubber material, uniformly arranging the rubber material on a die, controlling the temperature to be 180-200 ℃, the time to be 130-210S and the pressing pressure to be 40-100 kg/cm²Or 100-180 kg/cm²，

The burr is removed, and the water is discharged,

the burrs of the framework 1 and the rubber ring 9 are removed,

the outer diameter is ground, and the outer diameter,

the outer diameter of the framework 1 is ground,

the spring is put into the groove,

a spring is put in the outer side of the upper lip of the rubber ring 9,

and (6) detecting and packaging.

In summary, the following steps: the oil seal of the wind power generation gearbox has the advantages of long service life, strong corrosion resistance and difficult leakage; and the friction force of the rubber ring to the transmission shaft is reduced, and the energy consumption loss is reduced.

The foregoing has described the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.