CN113236712B - 90 MW-level high-efficiency single-stage parallel shaft gear transmission device - Google Patents
90 MW-level high-efficiency single-stage parallel shaft gear transmission device Download PDFInfo
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- CN113236712B CN113236712B CN202110513560.7A CN202110513560A CN113236712B CN 113236712 B CN113236712 B CN 113236712B CN 202110513560 A CN202110513560 A CN 202110513560A CN 113236712 B CN113236712 B CN 113236712B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 106
- 239000003921 oil Substances 0.000 claims description 195
- 244000309464 bull Species 0.000 claims description 118
- 238000002347 injection Methods 0.000 claims description 93
- 239000007924 injection Substances 0.000 claims description 93
- 238000005192 partition Methods 0.000 claims description 45
- 239000012208 gear oil Substances 0.000 claims description 28
- 239000010687 lubricating oil Substances 0.000 claims description 26
- 238000005507 spraying Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 abstract description 9
- 238000010248 power generation Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
- F16H1/08—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herringbone, or like teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0409—Features relating to lubrication or cooling or heating characterised by the problem to increase efficiency, e.g. by reducing splash losses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention belongs to the technical field of power generation of steam turbines or gas turbines, and particularly relates to a 90 MW-level high-efficiency single-stage parallel shaft gear transmission device. The invention solves the problem of the adaptation of the gear transmission device between the main machine and the generator in the 90 MW-grade gas turbine or steam turbine generator set, reduces the gear meshing power loss, the gear running windage power loss and the sliding support bearing dynamic pressure lubrication power loss of the gear transmission device, further improves the overall transmission efficiency of the gear transmission device, and ensures the running performance of the gear and the sliding support bearing in the gear transmission device under the working conditions of high speed and high power. The invention has high overall transmission efficiency which can reach more than 99 percent, can transmit more power input into the gear transmission device by the steam turbine or the gas turbine to the generator, and greatly increases the economic benefit when the steam turbine or the gas turbine generator set generates electricity.
Description
Technical Field
The invention belongs to the technical field of power generation of steam turbines or gas turbines, and particularly relates to a 90 MW-level high-efficiency single-stage parallel shaft gear transmission device.
Background
At present, the main component configuration of a steam turbine or a gas turbine generating unit is mostly a steam turbine (or a gas turbine) → gear transmission → a generator. However, a high-power gear transmission device corresponds to a large power loss, which means that economic benefits are reduced due to power loss required by users of steam turbine generator sets or gas turbine generator sets. For a 90 MW-grade steam turbine or gas turbine generator set, the gear transmission and sliding support bearing application performance of the single-grade parallel shaft gear transmission device matched with the single-grade parallel shaft gear transmission device reaches the limit: the linear speed of gear transmission is between 150m/s and 200m/s, the gear contact stress coefficient calculated according to the API-613 standard of the American Petroleum institute is 2.7MPa, the bending stress coefficient is 260MPa, when the linear speed of the gear and the gear strength parameter run, the gear pair is meshed to generate great meshing power loss, and the gear pair also generates great windage power loss when rotating; the linear velocity of the sliding support bearing is above 90m/s, the specific pressure is above 4Mpa, the highest temperature of a lubricating oil film between the sliding support bearing and a gear shaft is close to 120 ℃, and great dynamic pressure lubricating power loss can also be generated; because the meshing area and the rotating area of the gear transmission are adjacent to and close to the working area of the sliding support bearing, the generated heat can be mutually transferred when the gear transmission and the sliding support bearing operate under the working parameters (high speed and heavy load), the power loss of the gear transmission and the sliding support bearing is further improved, and the service performance limit of the gear transmission and the sliding support bearing is influenced. The transmission efficiency of the gear transmission device under the power level is generally about 98%, and the increase of the transmission efficiency by 0.1% means that more economic benefits are brought to users using the unit, for example, the transmission efficiency is increased by 0.5%, and the increased economic benefits can offset the purchase price of the gear transmission device within 5-7 years. Therefore, it is desirable to design a 90MW stage high efficiency single stage parallel shaft gear transmission that can achieve greater than 99% efficiency and deliver more power from the turbine (or gas turbine) to the gear transmission to the generator.
Disclosure of Invention
The invention aims to provide a 90 MW-grade high-efficiency single-stage parallel shaft gear transmission device which reduces the gear meshing power loss, the gear running wind resistance power loss and the dynamic pressure lubrication power loss of a sliding support bearing of the gear transmission device so as to improve the overall transmission efficiency of the gear transmission device.
The purpose of the invention is realized by the following technical scheme: comprises a box body and a single-stage gear transmission pair; the box body is of a horizontal split structure and consists of an upper box body and a lower box body, and the upper box body and the lower box body are connected into a whole through box body fasteners; the upper box body comprises an upper box body front end plate, an upper box body rear end plate, a box body cover plate and a closed end upper half box; the lower box body comprises a lower box body front end plate, a lower box body rear end plate, a box body bottom plate, a closed end lower half box, a pinion oil injection side plate and a bull gear oil injection side plate; the upper box body front end plate and the lower box body front end plate are combined into a box body front end plate, and the upper box body rear end plate and the lower box body rear end plate are combined into a box body rear end plate; the left lower end of the front end plate of the upper box body is provided with a pinion front bearing mounting upper half groove, the left upper end of the front end plate of the lower box body is provided with a pinion front bearing mounting lower half groove, and the pinion front bearing mounting upper half groove and the pinion front bearing mounting lower half groove are combined into a pinion front bearing mounting groove; the right lower end of the front end plate of the upper box body is provided with a front bearing mounting upper half groove of the large gear, the right upper end of the front end plate of the lower box body is provided with a front bearing mounting lower half groove of the large gear, and the front bearing mounting upper half groove of the large gear and the front bearing mounting lower half groove of the large gear are combined into a front bearing mounting groove of the large gear; the upper half box of the closed end is arranged in front of the upper half groove of the front bearing mounting of the large gear; the closed end lower half box is arranged in front of the large gear front bearing mounting lower half groove, and the closed end upper half box and the closed end lower half box are combined into a closed end box body; the left lower end of the upper box rear end plate is provided with a pinion rear bearing mounting upper half groove, the left upper end of the lower box rear end plate is provided with a pinion rear bearing mounting lower half groove, and the pinion rear bearing mounting upper half groove and the pinion rear bearing mounting lower half groove are combined into a pinion rear bearing mounting groove; the right lower end of the rear end plate of the upper box body is provided with a large gear rear bearing mounting upper half groove, the right upper end of the rear end plate of the lower box body is provided with a large gear rear bearing mounting lower half groove, and the large gear rear bearing mounting upper half groove and the large gear rear bearing mounting lower half groove are combined into a large gear rear bearing mounting groove; an input end gear bearing clapboard and an output end gear bearing clapboard are arranged in the box body; the input end gear bearing baffle is arranged behind the front end plate of the box body; the output end gear bearing baffle is arranged in front of the rear end plate of the box body; the single-stage gear transmission pair comprises a small gear rotor, a large gear rotor, an input shaft and an output shaft; the small gear rotor and the large gear rotor are meshed with each other and arranged in parallel in the box body and are positioned between the input end gear bearing partition plate and the output end gear bearing partition plate, and wind resistance reducing partition plates are arranged at the upper parts of the small gear rotor and the large gear rotor; the front end of the input shaft is connected with the input shaft rotor, the input shaft sequentially penetrates through the pinion front bearing, the input end gear bearing partition plate, the pinion rotor, the output end gear bearing partition plate and the pinion rear bearing, and the rear end of the input shaft is connected with the turning gear; the pinion front bearing is arranged in a pinion front bearing mounting groove, and a pinion shaft seal is arranged at the front part of the pinion front bearing mounting groove; the pinion rear bearing is arranged in the pinion rear bearing mounting groove; the front end of the output shaft is connected with the switching inner gear ring, the output shaft sequentially penetrates through the large gear front bearing, the input end gear bearing partition plate, the large gear rotor, the output end gear bearing partition plate and the large gear rear bearing, and the rear end of the output shaft is connected with the output shaft rotor; the switching inner gear ring is arranged in the closed end box body, and a closed end cover plate is arranged at the front part of the closed end box body; the large gear front bearing is arranged in the large gear front bearing mounting groove; the rear bearing of the gearwheel is arranged in the rear bearing mounting groove of the gearwheel, and a gearwheel shaft seal is arranged at the front part of the rear bearing mounting groove of the gearwheel; a lubricating oil defoaming plate is paved on the bottom plate of the box body; an oil injection loop is arranged in the lower box body; the oil injection loop consists of a pinion oil injection pipe, a bull oil injection pipe, a front-end oil way and a rear-end oil way; the front end oil way is arranged in the front end plate of the lower box body; the rear end oil way is arranged in the rear end plate of the lower box body; the pinion oil injection pipe is arranged below the pinion rotor, the front end and the rear end of the pinion oil injection pipe are respectively connected with the front end oil circuit and the rear end oil circuit, and oil injection baffles are arranged on the left side and the right side of the pinion oil injection pipe; the large gear oil injection pipe is arranged below the large gear rotor, the front end and the rear end of the large gear oil injection pipe are respectively connected with the front end oil way and the rear end oil way, and oil injection baffles are arranged on the left side and the right side of the large gear oil injection pipe; the pinion oil injection side plate is arranged on the left side of the pinion rotor, an oil delivery pipe is mounted on the pinion oil injection side plate, and the oil delivery pipe is connected with the pinion oil injection pipe; the bull gear oil injection side plate is arranged on the right side of the bull gear rotor.
The present invention may further comprise:
the bottom of the pinion oil injection side plate is provided with a pinion front bearing high-pressure jacking oil pipe inlet and a pinion rear bearing high-pressure jacking oil pipe inlet; the bottom of the large gear oil injection side plate is provided with a large gear front bearing high-pressure jacking oil pipe inlet and a large gear rear bearing high-pressure jacking oil pipe inlet; the lower end of the pinion front bearing is connected with a pinion front bearing high-pressure jacking oil pipe, and the pinion front bearing high-pressure jacking oil pipe is connected with and led out of the box body through a pinion front bearing high-pressure jacking oil pipe inlet formed in the bottom of the pinion oil injection side plate in a switching manner; the lower end of the pinion rear bearing is connected with a pinion rear bearing high-pressure jacking oil pipe, and the pinion rear bearing high-pressure jacking oil pipe is connected with and led out of the box body through a pinion rear bearing high-pressure jacking oil pipe inlet formed in the bottom of a pinion oil injection side plate in a switching manner; the lower end of the front gear wheel bearing is connected with a high-pressure jacking oil pipe of the front gear wheel bearing, and the high-pressure jacking oil pipe of the front gear wheel bearing is connected with an inlet of the high-pressure jacking oil pipe of the front gear wheel bearing arranged at the bottom of the oil injection side plate of the gear wheel in a switching manner and led out of the box body; the lower end of the rear bearing of the gearwheel is connected with a high-pressure jacking oil pipe of the rear bearing of the gearwheel, and the high-pressure jacking oil pipe of the rear bearing of the gearwheel is connected and led out of the box body through a high-pressure jacking oil pipe inlet of the rear bearing of the gearwheel, which is arranged at the bottom of the oil injection side plate of the gearwheel.
The inner side of the big gear shaft seal is provided with a centering wedge-shaped adjusting block; the centering wedge-shaped adjusting block is of an 8-equal split structure and is used for adjusting the coaxiality between the output shaft rotor and the large gear rotor and playing a role in fixing the gear transmission device in the transportation process.
The box body cover plate comprises an upper box body top plate, an upper box body left side plate and an upper box body right side plate; the left side plate of the upper box body is connected with the top plate of the upper box body through a left side inclined plane; the right side plate of the upper box body is connected with the top plate of the upper box body through a right side inclined plane; an observation hole cover of the meshing area is arranged on the top plate of the upper box body; a pinion observation hole cover is arranged on the left side inclined plane; and a large gear observation hole cover is arranged on the right inclined plane.
The invention has the beneficial effects that:
the invention solves the problem of the adaptation of the gear transmission device between the main machine and the generator in a 90 MW-grade gas turbine or steam turbine generator set, reduces the gear meshing power loss, the gear running wind resistance power loss and the dynamic pressure lubrication power loss of the sliding support bearing of the gear transmission device, further improves the overall transmission efficiency of the gear transmission device, and ensures the running performance of the gear and the sliding support bearing in the gear transmission device under the working conditions of high speed and high power. The invention has high overall transmission efficiency which can reach more than 99 percent, can transmit more power input into the gear transmission device by the steam turbine or the gas turbine to the generator, and greatly increases the economic benefit when the steam turbine or the gas turbine generator set generates electricity.
Drawings
Fig. 1 is a schematic structural view of an upper box body and a lower box body of an input end in the invention.
Fig. 2 is a schematic structural diagram of an upper box body and a lower box body of an output end in the invention.
FIG. 3 is a schematic view of the internal partition structure of the upper box of the present invention.
Fig. 4 is a schematic view of the input end gear transmission and sliding support bearing structure of the present invention.
FIG. 5 is a schematic view of the structure of the output end gear transmission and sliding support bearing of the present invention.
FIG. 6 is a schematic view of the internal partition structure of the lower box of the present invention.
Fig. 7 is a schematic diagram of the structure of the injection circuit according to the invention.
FIG. 8 is a schematic diagram of a lubricating oil defoaming plate according to the present invention.
FIG. 9 is a schematic view of the bull gear assembly of the present invention.
Fig. 10 is a schematic structural view of an output shaft of the present invention.
FIG. 11 is a schematic view of the centering wedge adjusting block of the present invention.
FIG. 12 is a schematic view of the rotor structure of the large gear according to the present invention.
Fig. 13 is a schematic view of an adapter inner gear ring structure according to the present invention.
FIG. 14 is a schematic diagram of an input end high pressure top shaft oil line of the present invention.
FIG. 15 is a schematic diagram of an output end high pressure top shaft oil line according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention aims to provide a 90 MW-level high-efficiency single-stage parallel shaft gear transmission device, which aims to reduce the gear meshing power loss, the gear running wind resistance power loss and the sliding support bearing dynamic pressure lubrication power loss of the gear transmission device, further improve the overall transmission efficiency of the gear transmission device, and transmit more power transmitted from a steam turbine (or a gas turbine) to the gear transmission device to a generator.
A90 MW-level high-efficiency single-stage parallel shaft gear transmission device comprises a box body and a single-stage gear transmission pair;
the box body is of a horizontal split structure and consists of an upper box body 1 and a lower box body 2, and the upper box body and the lower box body are connected into a whole through a box body fastener 7; the upper box body comprises an upper box body front end plate, an upper box body rear end plate, a box body cover plate and a closed end upper half box; the lower box body comprises a lower box body front end plate, a lower box body rear end plate, a box body bottom plate, a closed end lower half box, a pinion oil injection side plate and a bull gear oil injection side plate; the upper box front end plate and the lower box front end plate are combined into a box front end plate, and the upper box rear end plate and the lower box rear end plate are combined into a box rear end plate;
the left lower end of the front end plate of the upper box body is provided with a pinion front bearing mounting upper half groove, the left upper end of the front end plate of the lower box body is provided with a pinion front bearing mounting lower half groove, and the pinion front bearing mounting upper half groove and the pinion front bearing mounting lower half groove are combined into a pinion front bearing mounting groove;
the right lower end of the front end plate of the upper box body is provided with a front bearing mounting upper half groove of the large gear, the right upper end of the front end plate of the lower box body is provided with a front bearing mounting lower half groove of the large gear, and the front bearing mounting upper half groove of the large gear and the front bearing mounting lower half groove of the large gear are combined into a front bearing mounting groove of the large gear;
the upper half box of the closed end is arranged in front of the upper half groove of the front bearing of the large gear; the closed end lower half box is arranged in front of the large gear front bearing mounting lower half groove, and the closed end upper half box and the closed end lower half box are combined into a closed end box body;
the left lower end of the rear end plate of the upper box body is provided with a pinion rear bearing mounting upper half groove, the left upper end of the rear end plate of the lower box body is provided with a pinion rear bearing mounting lower half groove, and the pinion rear bearing mounting upper half groove and the pinion rear bearing mounting lower half groove are combined into a pinion rear bearing mounting groove;
the right lower end of the rear end plate of the upper box body is provided with a large gear rear bearing mounting upper half groove, the right upper end of the rear end plate of the lower box body is provided with a large gear rear bearing mounting lower half groove, and the large gear rear bearing mounting upper half groove and the large gear rear bearing mounting lower half groove are combined into a large gear rear bearing mounting groove;
an input end gear bearing clapboard and an output end gear bearing clapboard are arranged in the box body; the input end gear bearing baffle is arranged behind the front end plate of the box body; the output end gear bearing baffle is arranged in front of the rear end plate of the box body;
the single-stage gear transmission pair comprises a pinion rotor 13, a bull rotor 32, an input shaft and an output shaft;
the small gear rotor and the large gear rotor are meshed with each other and arranged in parallel in the box body and are positioned between the input end gear bearing partition plate and the output end gear bearing partition plate, and wind resistance reducing partition plates are arranged at the upper parts of the small gear rotor and the large gear rotor;
the front end of the input shaft is connected with an input shaft rotor, the input shaft sequentially passes through a pinion front bearing 15, an input end gear bearing partition plate, a pinion rotor, an output end gear bearing partition plate and a pinion rear bearing 16, and the rear end of the input shaft is connected with a turning gear 8;
the pinion front bearing is arranged in a pinion front bearing mounting groove, and a pinion shaft seal 19 is arranged at the front part of the pinion front bearing mounting groove; the pinion rear bearing is arranged in the pinion rear bearing mounting groove;
the front end of the output shaft is connected with the switching inner gear ring 33, the output shaft sequentially passes through the large gear front bearing 17, the input end gear bearing partition plate, the large gear rotor, the output end gear bearing partition plate and the large gear rear bearing 18, and the rear end of the output shaft is connected with the output shaft rotor;
the switching inner toothed ring is arranged in the closed-end box body, and a closed-end cover plate 6 is arranged at the front part of the closed-end box body; the front bearing of the gearwheel is arranged in the front bearing mounting groove of the gearwheel; the rear bearing of the gearwheel is arranged in the rear bearing mounting groove of the gearwheel, and a gearwheel shaft seal 20 is arranged at the front part of the rear bearing mounting groove of the gearwheel;
the inner side of the big gear shaft seal is provided with a centering wedge-shaped adjusting block 31; the centering wedge-shaped adjusting block is of an 8-equal split structure and is used for adjusting the coaxiality between the output shaft rotor and the large gear rotor and playing a role in fixing the gear transmission device in the transportation process.
A lubricating oil defoaming plate 29 is paved on the bottom plate of the box body; an oil injection loop is arranged in the lower box body; the oil injection loop consists of a pinion oil injection pipe 27, a bull oil injection pipe 28, a front-end oil way and a rear-end oil way; the front end oil way is arranged in the front end plate of the lower box body; the rear end oil way is arranged in the rear end plate of the lower box body; the pinion oil injection pipe is arranged below the pinion rotor, the front end and the rear end of the pinion oil injection pipe are respectively connected with the front end oil circuit and the rear end oil circuit, and oil injection baffles are arranged on the left side and the right side of the pinion oil injection pipe; the large gear oil injection pipe is arranged below the large gear rotor, the front end and the rear end of the large gear oil injection pipe are respectively connected with the front end oil way and the rear end oil way, and oil injection baffles are arranged on the left side and the right side of the large gear oil injection pipe; the pinion oil injection side plate is arranged on the left side of the pinion rotor, an oil delivery pipe is mounted on the pinion oil injection side plate, and the oil delivery pipe is connected with the pinion oil injection pipe; the bull gear oil injection side plate is arranged on the right side of the bull gear rotor.
The bottom of the pinion oil injection side plate is provided with a pinion front bearing high-pressure jacking oil pipe inlet and a pinion rear bearing high-pressure jacking oil pipe inlet; the bottom of the large gear oil injection side plate is provided with a large gear front bearing high-pressure jacking oil pipe inlet and a large gear rear bearing high-pressure jacking oil pipe inlet; the lower end of the pinion front bearing is connected with a pinion front bearing high-pressure jacking oil pipe 34, and the pinion front bearing high-pressure jacking oil pipe is connected with and led out of the box body through a pinion front bearing high-pressure jacking oil pipe inlet formed in the bottom of a pinion oil injection side plate in a switching manner; the lower end of the pinion rear bearing is connected with a pinion rear bearing high-pressure jacking oil pipe 35, and the pinion rear bearing high-pressure jacking oil pipe is connected with and led out of the box body through a pinion rear bearing high-pressure jacking oil pipe inlet formed in the bottom of the pinion oil injection side plate in a switching manner; the lower end of the front bearing of the gearwheel is connected with a high-pressure jacking oil pipe 36 of the front bearing of the gearwheel, and the high-pressure jacking oil pipe of the front bearing of the gearwheel is connected and led out of the box body through a high-pressure jacking oil pipe inlet of the front bearing of the gearwheel, which is arranged at the bottom of the oil injection side plate of the gearwheel; the lower end of the bull gear rear bearing is connected with a bull gear rear bearing high-pressure jacking oil pipe 37, and the bull gear rear bearing high-pressure jacking oil pipe is led out of the box body through the inlet of the bull gear rear bearing high-pressure jacking oil pipe arranged at the bottom of the bull gear oil injection side plate in a switching mode.
The box body cover plate comprises an upper box body top plate, an upper box body left side plate and an upper box body right side plate; the left side plate of the upper box body is connected with the top plate of the upper box body through a left side inclined plane; the right side plate of the upper box body is connected with the top plate of the upper box body through a right side inclined plane; the top plate of the upper box body is provided with an engaging area observation hole cover 3; a pinion observation hole cover 4 is arranged on the left side inclined plane; and a large gear observation hole cover 5 is arranged on the right inclined plane.
Example 1:
the invention designs a single-stage parallel shaft gear transmission device which is mainly applied to the field of power generation of 90 MW-stage steam turbines or gas turbines. The invention aims to reduce the gear meshing power loss, the gear running wind resistance power loss and the sliding support bearing dynamic pressure lubrication power loss of the gear transmission device with the power level, further improve the overall transmission efficiency of the gear transmission device with the power level and transmit more power transmitted from a steam turbine (or a gas turbine) to the gear transmission device to a generator.
The invention solves the problem of the adaptation of the gear transmission device between the main machine and the generator in the 90 MW-grade gas turbine or the steam turbine generator set, the overall transmission efficiency of the gear transmission device is high and can reach more than 99 percent, more power input to the gear transmission device by the steam turbine or the gas turbine can be transmitted to the generator, and the economic benefit of the steam turbine or the gas turbine generator set during power generation can be greatly increased.
The invention relates to a 90 MW-level high-efficiency single-stage parallel shaft gear transmission device which is of a single-stage transmission structure. The gear transmission device box body is of a horizontal split structure and consists of an upper box body 1 and a lower box body 2 which are connected into a whole through a box body fastener 7. An observation hole cover 3 of a meshing area is arranged at the top of the upper box body 1, a small gear observation hole cover 4 is arranged on the inclined plane of the upper box body 1 close to the small gear side, and a large gear observation hole cover 5 is arranged on the inclined plane of the upper box body 1 close to the large gear side. A single-stage gear transmission pair arranged in the gear transmission device consists of a pinion rotor 13 and a large gear assembly 14; wherein the pinion rotor 13 is an integral structure, and the bull gear assembly 14 is a split structure; the bull gear assembly 14 is composed of an output shaft rotor 30, a centering wedge adjusting block 31, a bull gear rotor 32 and a switching inner gear ring 33. The flange side of the pinion rotor 13 is the input end of the gear transmission device, and the flange side of the output shaft rotor 30 in the bull gear assembly 14 is the output end of the gear transmission device; the box body of the large gear assembly 14 close to the input end is provided with a closed end cover plate 6, and the box body of the small gear rotor 13 close to the output end is provided with a turning gear 8. In the wrapping range of the upper box body: a gear bearing clapboard 9 at the input end of the upper box body is arranged among the pinion rotor 13, the bull gear assembly 14, the pinion front bearing 15 and the bull gear front bearing 17; and a gear bearing partition plate 10 at the output end of the upper box body is arranged between the pinion rotor 13 and the bull gear assembly 14 and between the pinion rear bearing 16 and the bull gear rear bearing 18. A small gear wind resistance reducing partition plate 11 is installed at the upper part of the small gear rotor 13, and a large gear wind resistance reducing partition plate 12 is installed at the upper part of the large gear assembly 14; the pinion rotor 13 is supported within the gear housing by a pinion front bearing 15 and a pinion rear bearing 16, and the bull gear assembly 14 is supported within the gear housing by a bull gear front bearing 17 and a bull gear rear bearing 18. The pinion rotor 13 is provided with a pinion shaft seal 19 close to the input end box body, and the output shaft rotor 30 in the bull gear assembly 14 is provided with a bull gear shaft seal 20 close to the output end box body. In the wrapping range of the lower box body: a gear bearing clapboard 25 at the input end of the lower box body is arranged among the pinion rotor 13, the bull gear assembly 14, the pinion front bearing 15 and the bull gear front bearing 17; a gear bearing clapboard 26 at the output end of the lower box body is arranged among the pinion rotor 13, the bull gear assembly 14, the pinion rear bearing 16 and the bull gear rear bearing 18. A pinion input side oil spray baffle 21, a pinion output side oil spray baffle 22, a bull input side oil spray baffle 23 and a bull output side oil spray baffle 24 are mounted on the lower portions of the pinion rotor 13 and the bull gear assembly 14. A pinion oil injection pipe 27 is arranged between the pinion input side oil injection baffle plate 21 and the pinion output side oil injection baffle plate 22; a bull gear oil injection pipe 28 is arranged between the bull gear input side oil injection baffle 23 and the bull gear output side oil injection baffle 24. 4 lubricating oil defoaming plates 29 are arranged below the pinion input side oil spraying baffle 21, the pinion output side oil spraying baffle 22, the bull gear input side oil spraying baffle 23 and the bull gear output side oil spraying baffle 24. A pinion front bearing high-pressure jacking oil pipe 34, a pinion rear bearing high-pressure jacking oil pipe 35, a bull front bearing high-pressure jacking oil pipe 36 and a bull rear bearing high-pressure jacking oil pipe 37 are respectively connected under the pinion front bearing 15, the pinion rear bearing 16, the bull front bearing 17 and the bull rear bearing 18 and are connected with the side wall of the lower box body 2 in a switching way to be led out to the outside of the box body of the gear transmission device.
According to the invention, the small gear wind resistance reducing partition plate is arranged above the small gear rotor, and the large gear wind resistance reducing partition plate is arranged above the large gear assembly, so that the gear transmission wind resistance power loss generated in the high-speed running state of gear transmission can be effectively reduced; by installing the box input end gear bearing partition plate among the pinion rotor, the bull gear assembly, the pinion front bearing and the bull gear front bearing and installing the box output end gear bearing partition plate among the pinion rotor, the bull gear assembly, the pinion rear bearing and the bull gear rear bearing, the running space of a gear transmission pair and the running high-temperature space of four sliding support bearings can be effectively isolated from each other, the high-temperature oil-gas mixture stirred by the gear transmission pair is further reduced, and the wind resistance power loss of the gear transmission is reduced. The small gear input side oil spraying baffle and the small gear output side oil spraying baffle are arranged on two sides of the small gear oil spraying pipe, the large gear input side oil spraying baffle and the large gear output side oil spraying baffle are arranged on two sides of the large gear oil spraying pipe, lubricating oil can be greatly reduced to splash to the inner wall of a gear transmission device box body under the high linear speed running state of a spoke, the lubricating oil can flow back to the bottom of the lubricating oil through the lubricating oil defoaming plate and flows back to an external lubricating system through an oil return hole. By using the structure, the gear meshing power loss, the gear running wind resistance power loss and the sliding support bearing dynamic pressure lubrication power loss can be simultaneously reduced, so that the overall transmission efficiency of the 90 MW-level gear transmission device is improved, and the running performance of the gears and the sliding support bearings of the 90 MW-level gear transmission device under high-speed and high-power working conditions is ensured.
With reference to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5. The single-stage parallel shaft gear transmission device is of a horizontal eccentric transmission structure, the box body is of a horizontal split type and mainly comprises an upper box body 1 and a lower box body 2, and the upper box body and the lower box body are connected through a box body fastening piece 7. The top of the upper box body 1 is provided with a meshing area observation hole cover 3, and the state of the tooth surface of the meshing area can be detachably checked; the upper case 1 is provided with a pinion observation hole cover 4 on the pinion rotor 13 side and a bull observation hole cover 5 on the bull gear unit 14 side. The flange side of the pinion rotor 13 is the gear input, and the flange side of the bull gear assembly 14 is the gear output. The output end side of the gear transmission device is provided with a barring gear 8 which is used for barring a pinion rotor 13 and a bull gear assembly 14 of the gear transmission device in the starting stage. After the upper box body 1, the mesh area observation hole cover 3, the pinion observation hole cover 4, the bull observation hole cover 5 and the box body fastener 7 are hidden, the internal structure of the wrapping range of the upper box body 1 can be seen; the pinion rotor 13 is supported by a pinion front bearing 15 and a pinion rear bearing 16, and the bull gear assembly 14 is supported by a bull gear front bearing 17 and a bull gear rear bearing 18; wherein, an upper box input end gear bearing clapboard 9 is arranged between a pinion front bearing 15 and a bull gear front bearing 17 and a pinion rotor 13 as well as a bull gear component 14, and an upper box output end gear bearing clapboard 10 is arranged between a pinion rear bearing 16 and a bull gear rear bearing 18 as well as the pinion rotor 13 and the bull gear component 14; a pinion wind resistance reducing partition plate 11 and a bull gear wind resistance reducing partition plate 12 are arranged at the upper parts of the pinion rotor 13 and the bull gear assembly 14; two ends of the small gear wind resistance reducing partition plate 11 and the big gear wind resistance reducing partition plate 12 are fixedly connected with the upper box input end gear bearing partition plate 9 and the upper box output end gear bearing partition plate 10. The pinion rotor 13 and the bull gear assembly 14 can only rotate in one direction, and when the input end of the gear transmission device faces the output end, the rotation direction of the pinion rotor 13 is clockwise, and the rotation direction of the bull gear assembly 14 is anticlockwise.
With reference to fig. 5, 6, 7 and 8. After the pinion rotor 13, the bull gear assembly 14, the pinion front bearing 15, the pinion rear bearing 16, the bull gear front bearing 17 and the bull gear rear bearing 18 in fig. 5 are hidden, the connecting components can be seen in the wrapping range of the lower box body. The end face of the input end box body close to the pinion rotor 13 is provided with a pinion shaft seal 19, and the end face of the output end box body close to the bull gear assembly 14 is provided with a bull gear shaft seal 20. And a pinion oil injection pipe 27 and a bull gear oil injection pipe 28 are arranged on the two sides of the meshed sides of the pinion and the pinion, and are used for respectively injecting oil and lubricating the pinion rotor 13 and the bull gear assembly 14. A pinion input side oil spray baffle plate 21 and a pinion output side oil spray baffle plate 22 are arranged below the pinion rotor 13 (positioned on two sides of the pinion oil spray pipe 27), and a bull gear input side oil spray baffle plate 23 and a bull gear output side oil spray baffle plate 24 are arranged below the bull gear assembly 14 (positioned on two sides of the bull gear oil spray pipe 28). Similar to the structure in the upper box body wrapping range, in the lower box body wrapping range, a lower box body input end gear bearing partition plate 25 is arranged between the pinion front bearing 15 and the bull gear front bearing 17 and the pinion rotor 13 and between the bull gear assembly 14, and a lower box body output end gear bearing partition plate 26 is arranged between the pinion rear bearing 16 and the bull gear rear bearing 18 and between the pinion rotor 13 and the bull gear assembly 14. The small gear input side oil spraying baffle 21, the small gear output side oil spraying baffle 22, the large gear input side oil spraying baffle 23 and the large gear output side oil spraying baffle 24 are installed and connected on a lower box input end gear bearing partition plate 25 and a lower box output end gear bearing partition plate 26. 4 lubricating oil defoaming plates 29 are arranged below the pinion oil injection pipe 27 and the gearwheel oil injection pipe 28.
The 90 MW-grade high-efficiency single-stage parallel shaft gear transmission device disclosed by the invention is used for realizing high transmission efficiency operation and is explained in detail by combining with the attached drawings 3, 6, 7 and 8. The linear speed of the pitch circle of the pinion rotor 13 and the gear wheel assembly 14 is more than 150m/s, the transmission power is 90MW, and the gear transmission is in a high-speed and heavy-load running state; the linear speed of the shaft necks of the front pinion bearing 15 and the rear pinion bearing 16 is more than 90m/s, the specific pressure is more than 3.5MPa, the linear speed of the shaft necks of the front bull gear bearing 17 and the rear bull gear bearing 18 is more than 65m/s, the specific pressure is more than 3.5MPa, and the sliding support bearing is also in a high-speed and heavy-load running state. In this state, the loss of gear engagement power, the loss of gear running wind resistance power and the loss of dynamic pressure lubrication power of the sliding support bearing are relatively large, the oil return temperature after oil injection lubrication of the gear and the oil outlet temperature of the sliding support bearing are relatively large, and particularly the oil outlet temperature of the sliding bearing is generally larger than 80 ℃. Through a pinion rotor 13, a gearwheel assembly 14, a pinion front bearing 15, a pinion rear bearing 16, a gearwheel front bearing 17 and an upper box input end gear bearing partition 9, an upper box output end gear bearing partition 10, a lower box input end gear bearing partition 25 and a lower box output end gear bearing partition 26 which are arranged between gearwheel rear bearings 18, 4 end leakage lubricating oil with high temperature of sliding support bearings can be effectively organized to enter a gear running area, so that the end leakage lubricating oil can timely flow back to the bottom of a box body and is arranged to an external lubricating system, the temperature of an oil-gas mixture in the gear running area is greatly reduced, and further, the wind resistance power loss of gear running is reduced. A pinion oil injection pipe 27 and a bull gear oil injection pipe 28 are respectively arranged below the pinion rotor 13 and the bull gear assembly 14, so that gear transmission running in a high-speed and heavy-load state can be fully lubricated and cooled; the two lubricating oil pipes are positioned at the meshing side position, so that the utilization coefficient of the lubricating oil can be improved, the running state that the utilization coefficient of the gear transmission lubricating oil is not high in the high-speed running state is effectively avoided, and the gear meshing power loss is reduced. The pinion input side oil injection baffle plate 21 and the pinion output side oil injection baffle plate 22 are arranged on two sides of the pinion oil injection pipe 27; the large gear input side oil spraying baffle plate 23 and the large gear output side oil spraying baffle plate 24 are arranged on the two sides of the large gear oil spraying pipe 28, so that the influence of oil spraying lubrication between the large gear and the small gear can be effectively blocked, and the space for stirring oil-gas mixture in the gear transmission running process is further reduced; meanwhile, the lubricating oil is prevented from splashing to the inner wall of the box body after the temperature of the gear body is reduced, and the temperature of the box body and the temperature of the gear transmission running space are increased; the measures further greatly reduce the wind resistance power loss of the gear running. Through set up pinion rotor 13, gear wheel assembly 14 top respectively and fall windage baffle 11, gear wheel and fall windage baffle 12, can further reduce gear operation windage power loss under the prerequisite of keeping the flank of tooth inspection space, oil gas mixture in the gear drive operation space falls the windage baffle through the pinion and falls on windage baffle 11, gear wheel and fall windage baffle 12 and condense and drip to the gear drive meshing area simultaneously, further strengthens gear drive's lubricated effect.
With reference to fig. 9, 10, 11, 12 and 13. The bull gear assembly 14 is a split structure and is assembled by an output shaft rotor 30, a centering wedge adjusting block 31, a bull gear rotor 32 and a switching inner gear ring 33. The large gear rotor 32 is a hollow structure, and the output shaft rotor 30 axially penetrates through the large gear rotor 32 and is connected with the switching inner gear ring 33; the output inner gear ring 33 is connected with the large gear rotor 32 through a flange, and the output shaft rotor 30 is fixed on one side of the input end; a centering wedge-shaped adjusting block 31 is arranged between the output shaft rotor 30 and the gear rotor 32 and plays a role in fixing the gear transmission device in the transportation process; the centering wedge-shaped adjusting block is of an 8-equal split structure, and the coaxiality between the output shaft rotor 30 and the large gear rotor 32 can be adjusted.
With reference to fig. 14 and 15. In the invention, the weights of the pinion rotor 13 and the bull gear assembly 14 are large, and in the starting and accelerating process of the gear transmission device, because the initial linear speed is low, the finished lubricating oil films are not easily formed on the pinion rotor 13, the pinion front bearing 15, the pinion rear bearing 16, the bull gear assembly 14, the bull gear front bearing 17 and the bull gear rear bearing 18, and therefore high-pressure jacking oil is required to be introduced to counteract the dead weight of the rotors in advance. The high-pressure jacking oil pipe 34 of the front pinion bearing, the high-pressure jacking oil pipe 35 of the rear pinion bearing, the high-pressure jacking oil pipe 36 of the front bull gear bearing and the high-pressure jacking oil pipe 37 of the rear bull gear bearing are respectively connected with the front pinion bearing 15, the rear pinion bearing 16, the front bull gear bearing 17 and the rear bull gear bearing 18 and are led out of an external box body of the gear transmission device through conversion connection with the side wall of the lower box body 2. The lubricating oil of about 20MPa is forcibly injected into the gear transmission device in the lifting speed stage, and a lubricating oil film is forcibly formed between the gear and the bearing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a 90MW level high efficiency single-stage parallel shaft gear drive which characterized in that: comprises a box body and a single-stage gear transmission pair; the box body is of a horizontal split structure and consists of an upper box body and a lower box body, and the upper box body and the lower box body are connected into a whole through a box body fastener; the upper box body comprises an upper box body front end plate, an upper box body rear end plate, a box body cover plate and a closed end upper half box; the lower box body comprises a lower box body front end plate, a lower box body rear end plate, a box body bottom plate, a closed end lower half box, a pinion oil injection side plate and a bull gear oil injection side plate; the upper box body front end plate and the lower box body front end plate are combined into a box body front end plate, and the upper box body rear end plate and the lower box body rear end plate are combined into a box body rear end plate; the left lower end of the front end plate of the upper box body is provided with a pinion front bearing mounting upper half groove, the left upper end of the front end plate of the lower box body is provided with a pinion front bearing mounting lower half groove, and the pinion front bearing mounting upper half groove and the pinion front bearing mounting lower half groove are combined into a pinion front bearing mounting groove; the right lower end of the front end plate of the upper box body is provided with a front bearing mounting upper half groove of the large gear, the right upper end of the front end plate of the lower box body is provided with a front bearing mounting lower half groove of the large gear, and the front bearing mounting upper half groove of the large gear and the front bearing mounting lower half groove of the large gear are combined into a front bearing mounting groove of the large gear; the upper half box of the closed end is arranged in front of the upper half groove of the front bearing of the large gear; the closed end lower half box is arranged in front of the large gear front bearing mounting lower half groove, and the closed end upper half box and the closed end lower half box are combined into a closed end box body; the left lower end of the rear end plate of the upper box body is provided with a pinion rear bearing mounting upper half groove, the left upper end of the rear end plate of the lower box body is provided with a pinion rear bearing mounting lower half groove, and the pinion rear bearing mounting upper half groove and the pinion rear bearing mounting lower half groove are combined into a pinion rear bearing mounting groove; the right lower end of the rear end plate of the upper box body is provided with a large gear rear bearing mounting upper half groove, the right upper end of the rear end plate of the lower box body is provided with a large gear rear bearing mounting lower half groove, and the large gear rear bearing mounting upper half groove and the large gear rear bearing mounting lower half groove are combined into a large gear rear bearing mounting groove;
the single-stage gear transmission pair consists of a small gear rotor and a large gear assembly, wherein the small gear rotor is of an integral structure, and the large gear assembly is of a split structure; the small gear rotor and the large gear rotor are meshed with each other and are arranged in the box body side by side; the flange side of the small gear rotor is the input end of the gear transmission device, and the flange side of the output shaft rotor in the large gear assembly is the output end of the gear transmission device; a turning gear is arranged on the box body of the pinion rotor close to the output end; the pinion rotor is supported by a pinion front bearing and a pinion rear bearing in the gear transmission device box, and the bull gear assembly is supported by a bull gear front bearing and a bull gear rear bearing in the gear transmission device box; the large gear assembly consists of an output shaft rotor, a centering wedge-shaped adjusting block, a large gear rotor and a switching inner gear ring; the pinion front bearing is arranged in a pinion front bearing mounting groove, and a pinion shaft seal is arranged at the front part of the pinion front bearing mounting groove; the pinion rear bearing is arranged in the pinion rear bearing mounting groove; the large gear front bearing is arranged in the large gear front bearing mounting groove; the rear bearing of the gearwheel is arranged in the rear bearing mounting groove of the gearwheel, and a gearwheel shaft seal is arranged at the front part of the rear bearing mounting groove of the gearwheel; the switching inner gear ring is arranged in the closed end box body, and a closed end cover plate is arranged at the front part of the closed end box body; in the wrapping range of the upper box body, gear bearing clapboards at the input end of the upper box body are arranged among the pinion rotor, the bull gear assembly, the pinion front bearing and the bull gear front bearing; a gear bearing clapboard at the output end of the upper box body is arranged among the pinion rotor, the bull gear assembly, the pinion rear bearing and the bull gear rear bearing; a small gear wind resistance reducing partition plate is arranged at the upper part of the small gear rotor, and a large gear wind resistance reducing partition plate is arranged at the upper part of the large gear assembly; the two ends of the small gear wind resistance reducing partition plate and the large gear wind resistance reducing partition plate are fixedly connected with the gear bearing partition plate at the input end of the upper box body and the gear bearing partition plate at the output end of the upper box body; an oil injection loop is arranged in the lower box body; the oil injection loop consists of a pinion oil injection pipe, a bull gear oil injection pipe, a front end oil way and a rear end oil way; the front end oil way is arranged in the front end plate of the lower box body; the rear end oil way is arranged in the rear end plate of the lower box body; the pinion oil injection pipe is arranged below the pinion rotor, and the front end and the rear end of the pinion oil injection pipe are respectively connected with the front end oil way and the rear end oil way; the large gear oil injection pipe is arranged below the large gear rotor, and the front end and the rear end of the large gear oil injection pipe are respectively connected with the front end oil way and the rear end oil way; the oil injection baffle at the input side of the pinion and the oil injection baffle at the output side of the pinion are arranged at the two sides of the oil injection pipe of the pinion below the pinion; a bull gear input side oil spraying baffle and a bull gear output side oil spraying baffle are arranged on two sides of the bull gear oil spraying pipe below the bull gear assembly; in the lower box body wrapping range, gear bearing clapboards at the input end of the lower box body are arranged among the pinion front bearing, the bull gear front bearing, the pinion rotor and the bull gear component; a gear bearing clapboard at the output end of the lower box body is arranged among the pinion rear bearing, the bull gear rear bearing, the pinion rotor and the bull gear component; the small gear input side oil spraying baffle, the small gear output side oil spraying baffle, the large gear input side oil spraying baffle and the large gear output side oil spraying baffle are arranged and connected on a lower box body input end gear bearing partition plate and a lower box body output end gear bearing partition plate; four lubricating oil defoaming plates are arranged below the pinion oil injection pipe and the gearwheel oil injection pipe; the oil injection baffles arranged on two sides of the pinion oil injection pipe and the bull oil injection pipe are used for reducing the splashing of lubricating oil to the inner wall of a box body of the gear transmission device under the high linear speed running state of the outgoing wheel arm, returning the lubricating oil in time, returning the lubricating oil to the bottom of the lubricating oil through the lubricating oil defoaming plate, and returning the lubricating oil to an external lubricating system through the oil return hole; the pinion oil injection side plate is arranged on the left side of the pinion rotor, an oil delivery pipe is mounted on the pinion oil injection side plate, and the oil delivery pipe is connected with the pinion oil injection pipe; the bull gear oil injection side plate is arranged on the right side of the bull gear rotor.
2. A 90MW stage high efficiency single stage parallel shaft gear transmission according to claim 1, wherein: the bottom of the pinion oil injection side plate is provided with a pinion front bearing high-pressure jacking oil pipe inlet and a pinion rear bearing high-pressure jacking oil pipe inlet; the bottom of the large gear oil injection side plate is provided with a large gear front bearing high-pressure jacking oil pipe inlet and a large gear rear bearing high-pressure jacking oil pipe inlet; the lower end of the pinion front bearing is connected with a pinion front bearing high-pressure jacking oil pipe, and the pinion front bearing high-pressure jacking oil pipe is connected with and led out of the box body through a pinion front bearing high-pressure jacking oil pipe inlet formed in the bottom of the pinion oil injection side plate in a switching manner; the lower end of the pinion rear bearing is connected with a pinion rear bearing high-pressure jacking oil pipe, and the pinion rear bearing high-pressure jacking oil pipe is connected with and led out of the box body through a pinion rear bearing high-pressure jacking oil pipe inlet formed in the bottom of a pinion oil injection side plate in a switching manner; the lower end of the front gear wheel bearing is connected with a high-pressure jacking oil pipe of the front gear wheel bearing, and the high-pressure jacking oil pipe of the front gear wheel bearing is connected with an inlet of the high-pressure jacking oil pipe of the front gear wheel bearing arranged at the bottom of the oil injection side plate of the gear wheel in a switching manner and led out of the box body; the lower end of the bull gear rear bearing is connected with a bull gear rear bearing high-pressure jacking oil pipe, and the bull gear rear bearing high-pressure jacking oil pipe is connected with and led out of the box body through a bull gear rear bearing high-pressure jacking oil pipe inlet formed in the bottom of the bull gear oil injection side plate in a switching mode.
3. A 90MW stage high efficiency single stage parallel shaft gear transmission according to claim 1 or 2, wherein: the output shaft rotor axially penetrates through the large gear rotor and is connected with the switching inner gear ring; the output inner gear ring is connected with the large gear rotor through a flange at the same time, and an output shaft rotor is fixed on one side of the input end; a centering wedge-shaped adjusting block is arranged between the output shaft rotor and the gear rotor, and plays a role in fixing the gear transmission device in the transportation process; the centering wedge-shaped adjusting block is of an eight-equal split structure, and the coaxiality between the output shaft rotor and the large gear rotor can be adjusted.
4. A 90MW stage high efficiency single stage parallel shaft gear system as claimed in claim 1 or 2, wherein: the box body cover plate comprises an upper box body top plate, an upper box body left side plate and an upper box body right side plate; the left side plate of the upper box body is connected with the top plate of the upper box body through a left side inclined plane; the right side plate of the upper box body is connected with the top plate of the upper box body through a right side inclined plane; the top plate of the upper box body is provided with an observation hole cover of the meshing area; a pinion observation hole cover is arranged on the left side inclined plane; and a large gear observation hole cover is arranged on the right inclined plane.
5. A 90MW stage high efficiency single stage parallel shaft gear assembly according to claim 3, wherein: the box body cover plate comprises an upper box body top plate, an upper box body left side plate and an upper box body right side plate; the left side plate of the upper box body is connected with the top plate of the upper box body through a left side inclined plane; the right side plate of the upper box body is connected with the top plate of the upper box body through a right side inclined plane; the top plate of the upper box body is provided with an observation hole cover of the meshing area; a pinion observation hole cover is arranged on the left side inclined plane; and a large gear observation hole cover is arranged on the right inclined plane.
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Effective date of registration: 20231107 Address after: No. 35 Honghu Road, Harbin City, Heilongjiang Province, 150000 Patentee after: HARBIN GUANGHAN POWER TRANSMISSION Co.,Ltd. Patentee after: The 703nd Research Institute of China Shipbuilding Industry Corporation Address before: No.35, Honghu Road, Daoli District, Harbin City, Heilongjiang Province Patentee before: The 703nd Research Institute of China Shipbuilding Industry Corporation |