CN115789213A - Gear box with oil mist suction device - Google Patents

Gear box with oil mist suction device Download PDF

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Publication number
CN115789213A
CN115789213A CN202211300199.0A CN202211300199A CN115789213A CN 115789213 A CN115789213 A CN 115789213A CN 202211300199 A CN202211300199 A CN 202211300199A CN 115789213 A CN115789213 A CN 115789213A
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CN
China
Prior art keywords
oil
gear box
bearing
suction device
oil mist
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211300199.0A
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Chinese (zh)
Inventor
王曰辉
张鹏云
姜宏伟
赵萍
翟晶
李春光
张力
李刚
胡晋钰
庞晓丽
李红红
智博
路建鹏
靳建果
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan Heavy Industry Co Ltd
Original Assignee
Taiyuan Heavy Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taiyuan Heavy Industry Co Ltd filed Critical Taiyuan Heavy Industry Co Ltd
Priority to CN202211300199.0A priority Critical patent/CN115789213A/en
Publication of CN115789213A publication Critical patent/CN115789213A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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Abstract

The invention discloses a gear box with an oil mist suction device, which comprises a first barometer, a second barometer, an oil overflow pipe, an oil mist suction device and a coil pipe, wherein the first barometer is arranged outside the gear box and used for detecting the air pressure outside the gear box, the second barometer penetrates through the gear box and is arranged and communicated with a cavity between an oil baffle plate and a through cover and used for detecting the air pressure inside the gear box, the oil mist suction device is arranged at the upper part of the gear box at the shaft extension part of the gear box, one end of the oil overflow pipe is communicated with the cavity between the oil baffle plate and the through cover, the other end of the oil overflow pipe is connected with a suction inlet of the oil mist suction device, one end of the coil pipe is connected with a discharge port of the oil mist suction device, and the other end of the coil pipe penetrates through a sight hole cover and is communicated with the inside of the gear box. The invention can effectively avoid the leakage of the lubricating oil of the gear box, ensure the normal work of the gear box and prevent the environmental pollution, and the oil mist sucked by the oil mist suction device is condensed and reflowed into the gear box, thereby realizing the recycling of the lubricating oil of the gear box and reducing the consumption of the lubricating oil of the gear.

Description

Gear box with oil mist suction device
Technical Field
The invention belongs to the technical field of gear boxes, and particularly relates to a gear box with an oil mist suction device.
Background
In the running process of the gear box such as a wind power gear box and an industrial gear box, a large amount of heat can be generated by a bearing in the gear box, lubricating oil for cooling is sprayed to the bearing by an oil nozzle and then can be taken away, and meanwhile, a large amount of oil mist can be generated in the gear box body due to the effect of high temperature on the lubricating oil. In a labyrinth seal structure formed by an oil baffle plate, an oil slinger and a through cover at the shaft extension part of the gear box, a seal cavity is formed between the oil baffle plate and the through cover, and oil mist in the gear box is heated and expanded at the position to form positive pressure; and in the high-speed rotatory in-process of gear shaft, probably form the negative pressure in the gear box outside, like this, because the inside malleation of gear box and the outside negative pressure of gear box, the inside oil mist of gear box can spill over from the labyrinth seal structure department of shaft extension position, leads to the lubricating oil seepage to finally form the oil droplet in the condensation of gear box outside and influence the normal work of gear box, or adsorb in the dust of periphery and thereby cause environmental pollution.
Disclosure of Invention
In order to solve some or all technical problems in the prior art, the present invention provides a gear box with an oil mist suction device, the gear box with the oil mist suction device includes a box body, a first bearing, a gear shaft, a first oil nozzle, a second bearing, a second oil nozzle, a third bearing, a third oil nozzle, an oil baffle, an oil slinger, a transparent cover, and a sight hole cover, the gear shaft is mounted in the box body by the first bearing, the second bearing and the third bearing are close to a gear box shaft extension portion, the first bearing is located at an opposite end of the gear box shaft extension portion, the first oil nozzle is disposed at one side of the second bearing and the third bearing, the third oil nozzle is disposed at the other side of the second bearing and the third bearing, the second oil nozzle is disposed between the second bearing and the third bearing, the oil baffle, the oil slinger and the transparent cover are disposed at the gear box shaft extension portion to form a labyrinth, and the sight hole cover is mounted at an upper portion of the box body, wherein:
the gear box with the oil mist suction device also comprises a first barometer, a second barometer, an overflow oil pipe, the oil mist suction device and a coil pipe;
the first barometer is arranged outside the box body at the shaft extension part of the gear box and used for detecting the external air pressure of the box body;
the second barometer penetrates through a box body at the shaft extension part of the gear box, is communicated with a cavity between the oil baffle plate and the transparent cover, and detects the internal air pressure of the box body;
the oil mist suction device is arranged at the upper part of a box body at the shaft extension part of the gear box, one end of the overflow oil pipe is communicated with a cavity between the oil baffle plate and the through cover, and the other end of the overflow oil pipe is connected with a suction inlet of the oil mist suction device;
one end of the coil pipe is connected with the discharge port of the oil mist suction device, and the other end of the coil pipe penetrates through the sight hole cover and is communicated with the interior of the box body.
Further, in the above-mentioned gear box with oil mist suction device, a barometer mounting seat is provided outside the box body at the shaft extension part of the gear box, and the first barometer is mounted on the barometer mounting seat.
Further, in the above-described gear box having the oil mist suction means, the coil pipe is formed by continuously bending and winding a pipe body into a plurality of turns.
Further, the gear box with the oil mist suction device further comprises a motor and a cooling fan, wherein the cooling fan is connected to the motor and driven by the motor, and the cooling fan is arranged above the coil pipe.
The gear box with the oil mist suction device has the following advantages and beneficial effects:
1. the external air pressure and the internal air pressure of the gear box can be detected in real time through the first barometer and the second barometer, and when the internal air pressure of the gear box is higher than the external air pressure of the gear box, the oil mist suction device can timely suck the oil mist in the inner cavity of the shaft extension part to prevent the oil mist in the gear box from overflowing from the shaft extension part, so that the lubricating oil in the gear box is effectively prevented from leaking, the normal work of the gear box is ensured, and the environmental pollution is prevented;
2. the oil mist sucked out by the oil mist suction device can be effectively condensed by the coil pipe and the cooling fan and flows back to the gear box, so that the recycling of the lubricating oil of the gear box is realized, the consumption of the lubricating oil of the gear is reduced, and the purposes of saving energy and reducing cost are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only used for further understanding of the embodiments of the present invention and constitute a part of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:
fig. 1 is a schematic structural view of a gear box with an oil mist suction device according to the present invention.
Description of reference numerals:
1-box body, 2-first bearing, 3-gear shaft, 4-first oil nozzle, 5-second bearing, 6-second oil nozzle, 7-third bearing, 8-third oil nozzle, 9-oil baffle plate, 10-oil slinger, 11-transparent cover, 12-first barometer, 13-barometer mounting seat, 14-second barometer, 15-overflow pipe, 16-oil mist suction device, 161-suction inlet, 162-discharge outlet, 17-motor, 18-cooling fan, 19-coil pipe and 20-sight hole cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the gear box with the oil mist suction device of the present invention comprises: the oil slinger comprises a box body 1, a first bearing 2, a gear shaft 3, a first oil nozzle 4, a second bearing 5, a second oil nozzle 6, a third bearing 7, a third oil nozzle 8, an oil baffle plate 9, an oil slinger 10, a through cover 11 and a sight hole cover 20, wherein the gear shaft 3 is composed of the first bearing 2, the second bearing 5 and the third bearing 7 are installed in the box body 1, the second bearing 5 and the third bearing 7 are close to a gear box shaft extension part, the first bearing 2 is positioned at the opposite end of the gear box shaft extension part, the first oil nozzle 4 is arranged at one side of the second bearing 5 and one side of the third bearing 7, the third oil nozzle 8 is arranged at the other side of the second bearing 5 and the other side of the third bearing 7, the second oil nozzle 6 is arranged between the second bearing 5 and the third bearing 7, the oil baffle plate 9, the oil slinger 10 and the through cover 11 are arranged at the gear box shaft extension part, a labyrinth seal structure is formed, and the sight hole cover 20 is installed at the upper part of the box body 1.
Further, the gear box with the oil mist suction device of the invention further comprises: the oil mist detection device comprises a first barometer 12, a second barometer 14, an overflow oil pipe 15, an oil mist suction device 16 and a coil pipe 19, wherein the first barometer 12 is installed outside a box body 1 at a shaft extending part of a gear box and used for detecting the external air pressure of the box body 1, the second barometer 14 penetrates through the box body 1 at the shaft extending part of the gear box and is communicated with a cavity between an oil baffle plate 9 and a transparent cover 11 and is used for detecting the internal air pressure of the box body 1, the oil mist suction device 16 is arranged at the upper part of the box body 1 at the shaft extending part of the gear box, one end of the overflow oil pipe 15 is communicated with the cavity between the oil baffle plate 9 and the transparent cover 11, the other end of the overflow oil pipe 15 is connected with a suction port 161 of the oil mist suction device 16, one end of the coil pipe 19 is connected with a discharge port 162 of the oil mist suction device 16, and the other end of the coil pipe 19 penetrates through a sight hole cover 20 and is communicated with the inside the box body 1.
In a gear box with an oil mist suction device according to an embodiment of the present invention, a barometer mounting base 13 is provided on the outside of the box body 1 at the shaft extension portion of the gear box, and the first barometer 12 is mounted on the barometer mounting base 13.
During the operation of the gear box with the oil mist sucking device, the first barometer 12 detects the external air pressure of the gear box in real time, the second barometer 14 detects the internal air pressure of the gear box in real time, when the internal air pressure of the gear box is higher than the external air pressure of the gear box, the oil mist sucking device 16 is started, the oil mist in the cavity between the oil baffle plate 9 and the through cover 11 of the shaft extension part is sucked out through the overflow oil pipe 15, the sucked oil mist enters the coil pipe 19, the oil mist is gradually condensed in the coil pipe 19 and finally flows back to the gear box, meanwhile, as the oil mist in the cavity of the shaft extension part is sucked out continuously, the internal air pressure of the gear box is reduced until the internal air pressure of the gear box is lower than the external air pressure of the gear box, and the oil mist sucking device 16 stops working. Therefore, the oil mist in the inner cavity of the shaft extension part can be effectively sucked out in real time, the oil mist in the gear box caused by positive pressure in the gear box and negative pressure outside the gear box is prevented from overflowing from the shaft extension part, and the lubricating oil leakage of the gear box is effectively avoided.
Further, the gear box with the oil mist suction device of the present invention further includes a motor 17 and a cooling fan 18, the cooling fan 18 is connected to the motor 17 and driven by the motor 17, and the cooling fan 18 is disposed above the coil pipe 19. By means of the arrangement of the motor 17 and the cooling fan 18, it is advantageously possible to accelerate the condensation of the oil mist sucked out by the oil mist suction device 16 into the coil 19.
Further, in the gear box with the oil mist suction device of the present invention, the coil pipe 19 is preferably formed by continuously bending and winding a pipe body for a plurality of turns, which is advantageous in increasing the contact area of the oil mist with the coil pipe, increasing the distance of oil mist passing through the coil pipe, and thus facilitating the condensation of the oil mist in the coil pipe 19.
In summary, compared with the prior art, the gear box with the oil mist suction device has the following advantages
Has the advantages that:
1. the first barometer 12 and the second barometer 14 can detect the external air pressure and the internal air pressure of the gearbox in real time, and when the internal air pressure of the gearbox is higher than the external air pressure of the gearbox, the oil mist suction device 16 can timely suck the oil mist in the inner cavity of the shaft extension part to prevent the oil mist in the gearbox from overflowing from the shaft extension part, so that the lubricating oil of the gearbox is effectively prevented from leaking, the normal work of the gearbox is ensured, and the environmental pollution is prevented;
2. the oil mist sucked by the oil mist suction device 16 can be effectively condensed by the coil pipe 19 and the cooling fan 18 and flows back into the gear box, so that the recycling of the lubricating oil of the gear box is realized, the consumption of the lubricating oil of the gear is reduced, and the purposes of saving energy and reducing cost are achieved.
It is noted that, unless expressly stated or limited otherwise, the term "coupled" or its synonymous is intended to mean "coupled", as used herein, including, for example, fixedly attached or removably attached; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other or the two elements can interact with each other, so that the specific meaning of the terms in the invention can be understood according to specific situations by a person skilled in the art. Moreover, expressions such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations. Meanwhile, the terms "include", "include" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
It should be further noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (4)

1. A gear box with an oil mist suction device comprises a box body, a first bearing, a gear shaft, a first oil nozzle, a second bearing, a second oil nozzle, a third bearing, a third oil nozzle, an oil baffle plate, an oil slinger, a through cover and a sight hole cover, wherein the gear shaft is installed in the box body through the first bearing, the second bearing and the third bearing are close to a gear box shaft extension part, the first bearing is positioned at the opposite end of the gear box shaft extension part, the first oil nozzle is arranged at one side of the second bearing and one side of the third bearing, the third oil nozzle is arranged at the other side of the second bearing and the third bearing, the second oil nozzle is arranged between the second bearing and the third bearing, the oil baffle plate, the oil slinger and the through cover are arranged at the gear box shaft extension part to form a labyrinth seal structure, and the sight hole cover is installed at the upper part of the box body,
the gearbox with the oil mist suction device is characterized by further comprising a first barometer, a second barometer, an overflow oil pipe, the oil mist suction device and a coil pipe, wherein:
the first barometer is arranged outside the box body at the shaft extension part of the gear box and used for detecting the external air pressure of the box body;
the second barometer penetrates through a box body at the shaft extension part of the gear box, is communicated with a cavity between the oil baffle plate and the transparent cover, and detects the internal air pressure of the box body;
the oil mist suction device is arranged at the upper part of the box body at the shaft extension part of the gear box, one end of the overflow oil pipe is communicated with the cavity between the oil baffle plate and the through cover, and the other end of the overflow oil pipe is connected with a suction inlet of the oil mist suction device;
one end of the coil pipe is connected with the discharge port of the oil mist suction device, and the other end of the coil pipe penetrates through the sight hole cover and is communicated with the interior of the box body.
2. The gear box with the oil mist suction device according to claim 1, wherein a barometer mounting seat is provided on an outside of the box body at the shaft extension portion of the gear box, and the first barometer is mounted on the barometer mounting seat.
3. The gearbox with oil mist suction device as set forth in claim 1, wherein said coiled tube is formed by continuously bending and coiling a tube body for a plurality of turns.
4. The gearbox with oil mist suction means according to any one of claims 1 to 3, further comprising a motor and a cooling fan connected to and driven by the motor, and disposed above the coil.
CN202211300199.0A 2022-10-24 2022-10-24 Gear box with oil mist suction device Pending CN115789213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211300199.0A CN115789213A (en) 2022-10-24 2022-10-24 Gear box with oil mist suction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211300199.0A CN115789213A (en) 2022-10-24 2022-10-24 Gear box with oil mist suction device

Publications (1)

Publication Number Publication Date
CN115789213A true CN115789213A (en) 2023-03-14

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ID=85433549

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211300199.0A Pending CN115789213A (en) 2022-10-24 2022-10-24 Gear box with oil mist suction device

Country Status (1)

Country Link
CN (1) CN115789213A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117469194A (en) * 2023-12-28 2024-01-30 诺顿风机(潍坊)有限公司 Novel intelligent monitoring's special bearing box of axial fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117469194A (en) * 2023-12-28 2024-01-30 诺顿风机(潍坊)有限公司 Novel intelligent monitoring's special bearing box of axial fan
CN117469194B (en) * 2023-12-28 2024-03-08 诺顿风机(潍坊)有限公司 Bearing box special for intelligent monitoring axial flow fan

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