CN118912192B - Gear box with efficient lubrication function - Google Patents
Gear box with efficient lubrication function Download PDFInfo
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- CN118912192B CN118912192B CN202411408189.8A CN202411408189A CN118912192B CN 118912192 B CN118912192 B CN 118912192B CN 202411408189 A CN202411408189 A CN 202411408189A CN 118912192 B CN118912192 B CN 118912192B
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- housing
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- 238000005461 lubrication Methods 0.000 title claims abstract description 227
- 239000010687 lubricating oil Substances 0.000 claims abstract description 71
- 238000007789 sealing Methods 0.000 claims description 62
- 238000012546 transfer Methods 0.000 claims description 60
- 230000001050 lubricating effect Effects 0.000 claims description 43
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 239000012208 gear oil Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 15
- 230000006872 improvement Effects 0.000 description 8
- 239000012466 permeate Substances 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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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
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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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps; Pressure control
-
- 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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
本发明涉及应用于齿轮齿条技术领域的一种具有高效润滑作用的齿轮箱，包括齿条、啮合连接在齿条一端的动力齿轮、沿齿条长度方向布置在动力齿轮两侧的第一润滑齿轮和第二润滑齿轮、设置在齿轮和齿条外端的第一箱体和第二箱体、固定连接在箱体远离齿条一端的润滑泵、润滑泵与润滑齿轮之间连通的第一管道和第二管道，以及润滑系统内充填的润滑油，其中，润滑齿轮采用多孔结构，内部设有均流板引导润滑油均匀分布，齿轮箱工作时，润滑泵将润滑油通过管道和均流板送至润滑齿轮，润滑油经润滑齿轮孔隙渗透至齿面，在齿面形成润滑油膜，润滑齿轮在转动过程中利用表面残留的润滑油持续清洁齿条齿面。
The present invention relates to a gear box with efficient lubrication applied to the field of gear and rack technology, comprising a rack, a power gear meshingly connected to one end of the rack, a first lubrication gear and a second lubrication gear arranged on both sides of the power gear along the length direction of the rack, a first housing and a second housing arranged at the outer ends of the gear and the rack, a lubrication pump fixedly connected to one end of the housing away from the rack, a first pipe and a second pipe connected between the lubrication pump and the lubrication gear, and lubricating oil filled in the lubrication system, wherein the lubrication gear adopts a porous structure and is provided with a flow equalizing plate inside to guide the lubrication oil to be evenly distributed. When the gear box is working, the lubrication pump delivers the lubrication oil to the lubrication gear through the pipe and the flow equalizing plate, the lubrication oil penetrates into the tooth surface through the pores of the lubrication gear, and forms a lubrication oil film on the tooth surface. During the rotation process, the lubrication gear continuously cleans the rack tooth surface with the lubrication oil remaining on the surface.
Description
Technical Field
The invention relates to a gear box with an efficient lubrication function, in particular to a gear box with an efficient lubrication function, which is applied to the technical field of gears and racks.
Background
Rack and pinion transmissions are widely used in various mechanical devices such as elevators, numerical control machines, construction machines, and the like. In the transmission process, relative sliding and severe impact load exist between the gear and the rack, so that the tooth surface is easy to wear and fatigue failure. In order to reduce wear and extend service life, it is necessary to lubricate the tooth surfaces. Traditional manual periodic oiling lubrication mode is time consuming and laborious, and lubrication effect is not good. Therefore, it is necessary to develop an efficient and automated gearbox lubrication system.
The specification of Chinese patent No. CN108843952B discloses an automatic lubrication system for gears and racks of an elevator for indoor building construction, which comprises a cross rod, a left lubrication mechanism and a right lubrication mechanism which are positioned at two ends of the cross rod, and uniform dripping of lubricating oil is realized through a height adjusting mechanism and a hydraulic pump. The system has the advantages of complex structure, large occupied space and higher cost, and can only intermittently lubricate the gear, and the rack is in a stop state during lubrication, so that continuous lubrication in operation can not be realized.
The specification of Chinese patent No. CN117685346B discloses an automatic lubrication device of a gear-rack system, which comprises a gear follow-up supporting mechanism, a lubrication mechanism and a passive oil outlet control mechanism, wherein a gear is in sliding connection with a rack through a sliding supporting component, and lubricating oil drops to a tooth surface through an oil outlet. The device realizes the automatic lubrication of gears, but the lubricating oil is easy to be thrown off, the lubrication is insufficient, the lubricating oil permeability is poor, and the local areas such as tooth roots and the like cannot be effectively lubricated. In addition, the device does not have a tooth surface cleaning function, and abrasive dust and impurities are easy to accumulate on the tooth surface, so that abrasion is increased.
The automatic lubrication device replaces manual lubrication, so that the tooth surface lubrication condition is improved to a certain extent, but certain limitations exist, such as discontinuous lubrication, insufficient lubrication, poor cleaning effect and the like, so that the service life and the reliability of the gear-rack transmission are difficult to further improve.
In large-scale equipment such as mining machinery, engineering machinery, wind power equipment and the like, gear rack transmission commonly bears severe working conditions such as heavy load, low speed, frequent start and stop, and the like, and a traditional automatic lubrication system is difficult to meet performance requirements. Therefore, development of a novel gear box with efficient lubrication, full lubrication and cleaning function is needed to meet the application requirements of current large equipment, prolong the service life of the gear box, reduce the energy consumption and maintenance cost and improve the comprehensive performance and reliability of equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide the gear box with the efficient lubrication function, which can realize full and continuous automatic lubrication in the continuous meshing transmission process of the gear rack, improve the lubrication effect, simultaneously has the tooth surface cleaning function, effectively removes tooth surface abrasive dust and impurities, improves the service life and the reliability of the gear rack transmission, and meets the application requirements of heavy-load low-speed working conditions.
In order to solve the problems, the invention provides a gear box with an efficient lubrication function, which comprises a rack, wherein one end of a tooth surface of the rack is in meshed connection with a power gear, the power gear is provided with a first lubrication gear and a second lubrication gear which are symmetrically arranged along two sides of the length direction of the rack, the outer ends of the rack, the power gear, the first lubrication gear and the second lubrication gear are provided with a first box body and a second box body which are symmetrically arranged, one ends of the first box body and the second box body, which are far away from the rack, are fixedly connected with a lubrication pump, a liquid inlet and a liquid outlet of the lubrication pump are respectively connected with two ends of the first lubrication gear and the second lubrication gear through a first pipeline and a second pipeline, lubricating oil is filled in the lubrication pump, two ends of the rack penetrate through the first box body and the second box body and extend to the outer sides of the first box body and the second box body, and the first lubrication gear and the second lubrication gear are in rotary connection with the first box body and the second box body, and the first lubrication gear and the second lubrication gear are in porous structures.
As a further improvement of the application, the racks are helical teeth, the power gear, the first lubrication gear and the second lubrication gear are helical gears, and the inner walls of the first box body and the second box body are positioned between the power gear and the first lubrication gear and between the power gear and the second lubrication gear, and are respectively and fixedly connected with a first transfer box and a second transfer box.
As a still further improvement of the application, the first transfer box and the second transfer box are hollow structures, and one ends of the first transfer box and the second transfer box, which are close to the lubricating pump, are connected with the second pipeline, and the first transfer box and the second transfer box are communicated with the lubricating pump through the second pipeline.
As a further improvement of the application, the first lubrication gear and the second lubrication gear are fixedly connected with a first sealing plate and a second sealing plate along the two ends of the axial direction of the first lubrication gear, and the diameters of the first sealing plate and the second sealing plate are smaller than the root circle diameter of the first lubrication gear teeth.
As a further improvement of the application, a second sealing plate fixedly connected with the first lubrication gear and the second lubrication gear is respectively and rotatably connected with the first transfer box and the second transfer box, sealing rings are arranged between the second sealing plate and the first transfer box and between the second sealing plate and the second transfer box, and the first sealing plate fixedly connected with the first lubrication gear and the second lubrication gear is respectively and rotatably connected with the first box body and the second box body.
As a further improvement supplement of the application, the first lubrication gear and the second lubrication gear comprise symmetrically arranged gear bodies, and one ends of the symmetrically arranged gear bodies, which are close to each other, are fixedly connected with symmetrically arranged flow equalizing plates.
As a further improvement supplement of the application, one ends of the symmetrically arranged flow equalizing plates, which are far away from each other, penetrate through the gear body, the penetrating parts are fixedly connected with the first sealing plate and the second sealing plate respectively, and a plurality of micropores are formed at one ends of the symmetrically arranged flow equalizing plates, which are far away from each other, and the flow equalizing plates are of hollow structures.
As a further improvement of the application, the center of the power gear is fixedly connected with a rotating shaft along the axial direction of the power gear, two ends of the rotating shaft respectively penetrate through the first box body and the second box body, one end of the rotating shaft penetrating through the second box body is fixedly connected with a belt wheel, and one end penetrating through the first box body is fixedly connected with a flange plate.
The lubrication pump rotation is connected with the hydraulic gear that the symmetry set up, and the hydraulic gear that the symmetry set up is close to band pulley one end and all runs through the lubrication pump, and runs through the equal fixedly connected with band pulley of part.
The pulley on the pivot is connected through the hold-in range with the pulley on one of them hydraulic gear, and the second pipeline is embedded between the first box and the second box that the symmetry set up, and lubrication pump one end is kept away from to the second pipeline runs through first box and second box and is linked together with the inside flow equalizing plate that keeps away from power gear one end in first lubrication gear and the second lubrication gear.
In summary, the application has the following beneficial effects:
1. Through set up first lubricated gear and second lubricated gear in power gear bilateral symmetry, utilize the lubricating oil on the lubricated gear to carry out continuous lubrication and clean to the rack, reduced tooth surface friction and wearing and tearing, prolonged the life of gear.
2. The lubrication gear adopts the gear body with a porous structure, is beneficial for lubricating oil to permeate into the tooth surface, forms a uniform and sufficient lubricating oil film on the tooth surface, and further improves the lubricating effect.
3. The lubricating gear is internally provided with the flow equalizing plates, so that lubricating oil can be guided to be uniformly distributed to all parts of the gear body, and lubrication dead angles and partial abrasion are avoided, so that the lubrication is more comprehensive and effective.
4. The lubricating pump and the pipeline form a closed lubricating oil circulation system, the lubricating oil can be reused, the service cycle of the lubricating oil is greatly prolonged, and the lubricating effect is durable and stable.
5. Sealing plates are arranged at two ends of the lubrication gear and are matched with the box body to form reliable sealing, so that leakage of lubricating oil is effectively prevented, the utilization rate of the lubricating oil is improved, and the consumption of the lubricating oil is reduced.
6. Adopt helical tooth and helical gear structure, gear engagement is more steady, and transmission vibration and noise are reduced, and the operation is more smooth.
7. The first transfer box and the second transfer box are additionally arranged to guide lubricating oil to accurately flow into the lubricating gear from the lubricating pump, so that the lubricating efficiency and the reliability are improved. The transfer box can also store lubricating oil, so that the lubrication is more sufficient and durable.
8. The flow equalizing plate adopts a hollow structure, and two ends of the flow equalizing plate penetrate through the gear body and are connected with the sealing plate, so that lubricating oil can be guided to be uniformly distributed, the coaxiality of the sealing plate and the gear body can be improved, and the sealing performance is further enhanced.
9. And micropores are formed at the two ends of the flow equalizing plate, so that lubricating oil can more uniformly permeate all the positions of the gear body, the lubricating distribution is more reasonable, and the lubricating effect is better.
10. The synchronous belt is adopted to connect the rotating shaft and the hydraulic gear, so that the lubricating pump and the power gear synchronously run, the lubricating oil is conveyed to be matched with the rotating speed of the gear, and the lubrication is more timely and sufficient.
11. The lubrication pipeline is embedded between the box bodies and is directly communicated with the inside of the flow equalizing plate, so that the flow path of lubricating oil is shortened, and the lubrication efficiency is further improved.
12. The power gear is connected with the box body through a rotating shaft, the rotating shaft extends outwards and is provided with a belt wheel and a flange plate, so that the power gear is convenient to be connected with an external power source and a driven piece, and power and motion are transmitted.
Drawings
FIG. 1 is an overall block diagram of the present application;
FIG. 2 is a front view of the present application;
FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with the present application;
FIG. 4 is an enlarged view of FIG. 3B in accordance with the present application;
FIG. 5 is an overall exploded view of the present application;
FIG. 6 is a partial exploded view of the present application;
FIG. 7 is a partial exploded view of the present application;
FIG. 8 is a partial exploded view III of the present application;
FIG. 9 is a first external view of the present application;
fig. 10 is a second external structural view of the present application.
The reference numerals in the figures illustrate:
1. a rack; 2, a power gear, 3, a first lubrication gear, 4, a second lubrication gear, 5, a first box, 6, a second box, 7, a lubrication pump, 8, a first pipeline, 9, a second pipeline, 10, a first transfer box, 11, a second transfer box, 12, a first sealing plate, 13, a second sealing plate, 14, a gear body, 15, a flow equalizing plate, 16, a rotating shaft, 17, a belt pulley, 18 and a hydraulic gear.
Detailed Description
Three embodiments of the present application will be described in detail with reference to the accompanying drawings.
Example 1:
Fig. 1-10 show that the embodiment provides a gear box with efficient lubrication, which comprises a rack 1, wherein one end of the tooth surface of the rack 1 is in meshed connection with a power gear 2. The power gear 2 is provided with a first lubrication gear 3 and a second lubrication gear 4 which are symmetrically arranged along the two sides of the length direction of the rack 1. The outer ends of the rack 1, the power gear 2, the first lubrication gear 3 and the second lubrication gear 4 are provided with a first box body 5 and a second box body 6 which are symmetrically arranged. One end of the first box body 5 and the second box body 6, which are far away from the rack 1, is fixedly connected with a lubrication pump 7. The liquid inlet and the liquid outlet of the lubrication pump 7 are respectively connected with the two ends of the first lubrication gear 3 and the second lubrication gear 4 through a first pipeline 8 and a second pipeline 9. The lubrication pump 7, the first pipe 8 and the second pipe 9 are filled with lubrication oil. Both ends of the rack 1 penetrate through the first case 5 and the second case 6, and extend to the outside of the first case 5 and the second case 6. The power gear 2, the first lubrication gear 3 and the second lubrication gear 4 are all in rotary connection with the first box 5 and the second box 6. The first lubrication gear 3 and the second lubrication gear 4 are both porous structures, which is beneficial for lubricating oil to permeate into tooth surfaces.
Further, the first and second seal plates 12 and 13 are fixedly connected to both ends of the first and second lubricated gears 3 and 4 in the axial direction thereof. The diameters of the first sealing plate 12 and the second sealing plate 13 are smaller than the root circle diameter of the first lubrication gear 3, so that gaps between the lubrication gear and the box body are sealed, and lubricating oil leakage is prevented.
Further, the first lubricated gear 3 and the second lubricated gear 4 each include a symmetrically disposed gear body 14. One ends of the symmetrically arranged gear bodies 14, which are close to each other, are fixedly connected with symmetrically arranged flow equalizing plates 15. The flow equalizing plate 15 is used for guiding lubricating oil to uniformly flow to each part of the gear body 14, so as to improve the lubricating effect.
Further, the center of the power gear 2 is fixedly connected with a rotation shaft 16 in the axial direction thereof. Both ends of the rotating shaft 16 penetrate through the first case 5 and the second case 6, respectively. One end of the rotating shaft 16 penetrating through the second box body 6 is fixedly connected with a belt wheel 17, and one end of the rotating shaft 16 penetrating through the first box body 5 is fixedly connected with a flange plate.
In operation, the gearbox provided in this embodiment transmits external power to the power gear 2 via the pulley 17 and the shaft 16. The power gear 2 is meshed with the rack 1 to drive the rack 1 to move linearly along the length direction. At the same time, the rotation of the power gear 2 also drives the lubrication pump 7 through the rotation shaft 16 and the pulley 17. The lubrication pump 7 pumps the lubrication oil into the inside of the first and second lubrication gears 3 and 4 through the first and second pipes 8 and 9.
Lubricating oil firstly enters the flow equalizing plate 15 and uniformly flows to the gear bodies 14 at two sides under the guidance of the flow equalizing plate 15. The gear body 14 adopts a porous structure, and lubricating oil can permeate to the tooth surface through micropores on the surface of the gear body 14, so that a lubricating oil film is formed on the meshing tooth surfaces of the rack 1 and the power gear 2, the lubricating effect is achieved, and friction and abrasion are reduced.
Meanwhile, the rack 1 drives the first lubrication gear 3 and the second lubrication gear 4 to rotate in the moving process. The surface of the rotating lubrication gear continuously scrapes the surface of the rack 1, and the tooth surface is cleaned by utilizing the residual lubricating oil on the surface of the lubrication gear, so that the tooth surface abrasive dust and impurities are removed, and the tooth surface is kept clean.
Between the first and second lubricated gears 3 and 4 and the first and second cases 5 and 6, there are provided first and second seal plates 12 and 13. The sealing plate is attached to the inner wall of the box body, so that lubricating oil can be prevented from leaking from a gap between the lubricating gear and the box body, and the utilization rate of the lubricating oil is improved.
Through setting up first lubricated gear 3 and second lubricated gear 4 in power gear 2 both sides, utilize lubricated gear to carry out continuous lubrication and clean rack 1, can reduce the flank of tooth friction, extension gear life.
The first lubrication gear 3 and the second lubrication gear 4 adopt the gear body 14 with a porous structure, which is beneficial for lubricating oil to permeate into the tooth surface to form a uniform and effective lubricating oil film.
The first lubrication gear 3 and the second lubrication gear 4 are internally provided with the flow equalizing plates 15, so that lubricating oil can be guided to be uniformly distributed on the gear body 14, lubrication dead angles are avoided, and lubrication effect is improved.
The lubricating pump 7, the first pipeline 8 and the second pipeline 9 are adopted to form a lubricating oil circulation system, lubricating oil can be repeatedly utilized, and the lubricating effect is durable.
The first sealing plate 12 and the second sealing plate 13 can effectively prevent the leakage of lubricating oil, improve the utilization rate of the lubricating oil and reduce the consumption of the lubricating oil.
The power gear 2 is connected with the first box 5 and the second box 6 through a rotating shaft 16, the rotating shaft 16 extends outwards and is provided with a belt wheel 17 and a flange plate, so that the power gear is convenient to be connected with an external power source and a driven piece, and power is transmitted.
The whole gear box has compact structure, reasonable layout, small volume and easy installation and use. The internal lubrication and sealing design is reliable, the long-term stable work can be realized under severe working conditions, and the maintenance workload is small.
In summary, the gear box with efficient lubrication provided in this embodiment continuously lubricates and cleans the rack 1 by using the lubrication gear, and cooperates with the circulation lubrication system and the reliable seal design, so that the gear transmission efficiency can be improved, the service life can be prolonged, and the gear box with efficient lubrication has a wide application prospect.
Example 2:
Fig. 1-10 show that the present embodiment provides a gearbox with efficient lubrication, which is a further improvement over embodiment 1. The rack 1 adopts helical teeth, and the power gear 2, the first lubrication gear 3 and the second lubrication gear 4 which are meshed with the helical teeth are helical gears matched with the helical teeth. Adopt helical gear structure, can make gear engagement more steady, reduce vibration and noise, and helical gear structure can make rack 1 promote first lubricated gear 3 and the rotation of second lubricated gear 4 in the removal in-process, and the axis direction of first lubricated gear 3 and second lubricated gear 4 is parallel with rack 1 removal direction, and first lubricated gear 3 and second lubricated gear 4 of being convenient for clean rack 1 flank of tooth at the rotation in-process.
On the inner walls of the first and second cases 5 and 6, between the power gear 2 and the first lubrication gear 3 and between the power gear 2 and the second lubrication gear 4, a first transfer case 10 and a second transfer case 11 are fixedly connected, respectively. The first and second transfer cases 10 and 11 are hollow structures for guiding the lubrication oil from the lubrication pump 7 to the first and second lubrication gears 3 and 4.
Specifically, the first and second transfer tanks 10 and 11 are each connected to the second pipe 9 at one end thereof close to the lubrication pump 7. The lubrication pump 7 delivers the lubrication oil into the first and second transfer boxes 10 and 11 through the second pipe 9, and then flows into the first and second lubrication gears 3 and 4 through the transfer boxes. The first transfer case 10 and the second transfer case 11 are open at one end far from the lubrication pump 7, opposite to the end faces of the first lubrication gear 3 and the second lubrication gear 4, respectively, and lubrication oil can flow into the lubrication gears from the transfer cases.
Further, a second sealing plate 13 is fixedly connected to one end of the first and second lubricated gears 3 and 4 away from the power gear 2. The second sealing plate 13 is rotatably connected to the open ends of the first and second transfer cases 10 and 11 to seal the transfer cases. A seal ring is provided between the second seal plate 13 and the first and second transfer boxes 10 and 11 to prevent leakage of lubricating oil.
A first sealing plate 12 is fixedly connected to one end of the first lubrication gear 3 and the second lubrication gear 4 near the power gear 2. The first sealing plate 12 is rotatably connected to the inner walls of the first casing 5 and the second casing 6, and seals the gap between the first lubrication gear 3 and the second lubrication gear 4 and the first casing 5 and the second casing 6.
The second sealing plate 13 and the sealing rings provided between the first transfer case 10 and the second transfer case 11 can prevent the leakage of the lubricant oil from between the transfer case and the lubrication gear. The first sealing plate 12 is rotatably connected to the inner walls of the first casing 5 and the second casing 6, and prevents leakage of lubricating oil from the gap between the lubrication gear and the casing.
In operation, the gearbox provided in this embodiment transmits external power to the power gear 2 via the pulley 17 and the shaft 16. The power gear 2, the first lubrication gear 3 and the second lubrication gear 4 are helical gears which are meshed with helical teeth on the rack 1 to drive the rack 1 to move linearly along the length direction. The helical tooth structure enables meshing to be more stable, and vibration and impact are reduced.
At the same time, the rotation of the power gear 2 also drives the lubrication pump 7 through the rotation shaft 16 and the pulley 17. The lubrication pump 7 delivers lubrication oil through the second conduit 9 into the first and second transfer boxes 10, 11. The first transfer case 10 is located between the power gear 2 and the first lubricated gear 3, and the second transfer case 11 is located between the power gear 2 and the second lubricated gear 4. The first transfer box 10 and the second transfer box 11 are hollow structures, and are filled with lubricating oil.
The lubricating oil flows into the first lubricated gear 3 and the second lubricated gear 4 from the openings of the first transfer case 10 and the second transfer case 11 at the end remote from the lubrication pump 7. Under the guidance of the flow equalizing plate 15, lubricating oil is uniformly distributed to all parts of the gear body 14 and permeates to tooth surfaces through micropores on the surface of the gear body 14, so that a lubricating oil film is formed on the tooth surfaces of the rack 1, the power gear 2, the first lubricating gear 3 and the second lubricating gear 4, a lubricating effect is achieved, and friction and abrasion are reduced.
Meanwhile, the rack 1 drives the first lubrication gear 3 and the second lubrication gear 4 to rotate in the moving process. The surfaces of the first lubrication gear 3 and the second lubrication gear 4 which rotate continuously scrape the surface of the rack 1, and the tooth surface is cleaned by utilizing the residual lubricating oil on the surfaces of the lubrication gears, so that tooth surface abrasive dust and impurities are removed.
The end faces of the first lubrication gear 3 and the second lubrication gear 4, which are far away from one end of the power gear 2, are fixedly connected with a second sealing plate 13. The second sealing plate 13 is rotatably connected to the open ends of the first and second transfer cases 10 and 11 and is provided with a seal ring to prevent leakage of lubricating oil from between the transfer case and the lubricating gear.
The end surfaces of the first lubrication gear 3 and the second lubrication gear 4, which are close to one end of the power gear 2, are fixedly connected with a first sealing plate 12. The first sealing plate 12 is rotatably connected with the inner walls of the first casing 5 and the second casing 6, and can prevent the leakage of lubricating oil from between the lubrication gear and the casing.
Adopt helical tooth and helical gear structure, gear engagement is more steady, and transmission vibration and noise are littleer, and the operation is more smooth.
The first transfer box 10 and the second transfer box 11 are arranged, so that lubricating oil is guided to accurately flow from the lubricating pump 7 to the inside of the first lubricating gear 3 and the inside of the second lubricating gear 4, and the lubricating efficiency is improved.
The first transfer box 10 and the second transfer box 11 are hollow structures, can store lubricating oil, and are more fully durable in lubrication.
The second sealing plate 13 is matched with the first transfer box 10 and the second transfer box 11, and is provided with a sealing ring, so that lubricating oil can be effectively prevented from leaking between the transfer boxes and the lubricating gear.
The first sealing plate 12 is engaged with the inner walls of the first casing 5 and the second casing 6, so that the leakage of lubricating oil from between the lubrication gear and the casing can be prevented.
The first lubrication gear 3 and the second lubrication gear 4 clean the rack 1 by using surface lubricating oil in the rotation process, so that tooth surfaces are kept clean, and abrasion is reduced.
Further optimizing the lubrication oil path design and the seal design based on the embodiment 1, the lubrication is more sufficient, the seal is more reliable, the lubrication oil utilization rate is higher, and the leakage risk is lower.
In summary, the helical gear structure is adopted on the basis of embodiment 1, and the adapter box and the reliable sealing device are matched, so that the stability, the lubricating performance and the sealing reliability of the gear box are further improved, the gear box can be effectively lubricated for a long time under severe working conditions, and the gear box is safe and reliable to operate and has a wider application prospect.
Example 3:
Fig. 1-10 show that the present embodiment provides a gearbox with efficient lubrication, which is further improved on the basis of embodiment 1 and embodiment 2. The flow equalizing plates 15 inside the first lubrication gear 3 and the second lubrication gear 4 are specially designed.
Specifically, the symmetrically arranged flow equalizing plates 15 each penetrate through the gear body 14 at the ends far away from each other, and extend to the outside of the gear body 14. The portion penetrating the gear body 14 is fixedly connected with the first seal plate 12 and the second seal plate 13, respectively. Like this, flow equalizing plate 15 not only can guide lubricating oil to flow in the inside of gear body 14, but also can with first closing plate 12 and second closing plate 13 fixed connection, improves the axiality of closing plate and gear body, guarantees sealing performance.
A plurality of micropores are formed at the end of the symmetrically arranged flow equalizing plates 15, which are far away from each other, namely, the part extending through the gear body 14. The flow equalizing plate 15 is a hollow structure, and the inner cavity of the flow equalizing plate is communicated with the first pipeline 8 or the second pipeline 9. After entering the flow equalizing plate 15, lubricating oil can flow into the gear body 14 through micropores at the end part of the flow equalizing plate 15 and permeate to the tooth surface for lubrication through micropores on the gear body 14.
Further, a symmetrically arranged hydraulic gear 18 is rotatably connected to the lubrication pump 7. The hydraulic gear 18 is a pair of gears meshed with each other, and the transmission of the lubricating oil is achieved by rotation. One end of the symmetrically arranged hydraulic gear 18, which is close to the belt pulley 17, penetrates through the housing of the lubrication pump 7 and extends to the outer side of the lubrication pump 7. The belt wheels 17 are fixedly connected to the parts extending through the housing of the lubricating pump 7.
The pulley 17 on the shaft 16 is connected to the pulley 17 on one of the hydraulic gears 18 by means of a timing belt. When the power gear 2 rotates through the rotating shaft 16, the belt pulley 17 on the power gear drives the belt pulley 17 on the hydraulic gear 18 to rotate through the synchronous belt, so that the hydraulic gear 18 is driven to rotate, and the transmission of lubricating oil is realized.
A cavity is provided between the first casing 5 and the second casing 6. The second pipe 9 is embedded in the cavity and arranged along the length of the rack 1. One end of the second pipeline 9, which is far away from the lubrication pump 7, penetrates through the inner walls of the first box body 5 and the second box body 6, extends into the first lubrication gear 3 and the second lubrication gear 4, and is communicated with the cavity inside the flow equalizing plate 15. Lubricating oil flows into the hollow inside of the flow equalizing plate 15 through the second pipeline 9, and flows into the gear body 14 through micropores at the end part of the flow equalizing plate 15, so that the rack 1 is lubricated.
When the gear box provided by the embodiment works, external power is transmitted to the power gear 2 through the rotating shaft 16 to drive the power gear 2 to rotate. The power gear 2 is meshed with the rack 1, and drives the rack 1 to do linear motion along the length direction.
The rotating shaft 16 is connected with a belt wheel 17, and is connected with the belt wheel 17 on a hydraulic gear 18 on the lubricating pump 7 through a synchronous belt. As the shaft 16 rotates, the hydraulic gear 18 also rotates synchronously, pumping the lubricant.
As the hydraulic gear 18 rotates, lubricating oil is fed from the lubrication pump 7 into the second conduit 9. The second pipe 9 is embedded in the cavity between the first box 5 and the second box 6, and is arranged along the length direction of the rack 1. After filling the second pipe 9 with lubricating oil, the lubricating oil flows into the flow equalizing plates 15 inside the first and second lubricated gears 3 and 4 from the end thereof away from the lubricated pump 7.
The flow equalizing plate 15 is of a hollow structure, a cavity is arranged in the flow equalizing plate, and two ends of the flow equalizing plate penetrate through the gear body 14 and extend to the outer side of the gear body 14 to be fixedly connected with the first sealing plate 12 and the second sealing plate 13. After entering the cavity in the flow equalizing plate 15 from the second pipeline 9, lubricating oil flows into the gear body 14 through micropores at two ends of the flow equalizing plate 15 and seeps out from micropores on the surface of the gear body 14, and a lubricating oil film is formed on the tooth surface to lubricate the rack 1 and the power gear 2.
The rack 1 also drives the first lubrication gear 3 and the second lubrication gear 4 to rotate during the movement process. The residual lubricating oil on the surfaces of the first lubrication gear 3 and the second lubrication gear 4 continuously scrapes the surface of the rack 1, and cleans the rack to remove abrasive dust and impurities.
The cooperation of flow equalizing plate 15 and closing plate first closing plate 12 and second closing plate 13 can guide lubricating oil evenly distributed in the inside of gear body 14, can improve the axiality of closing plate and gear body 14 again, guarantees sealing performance.
The flow equalizing plate 15 adopts a hollow structure, and two ends penetrate through the gear body 14 and are connected with the first sealing plate 12 and the second sealing plate 13, so that the coaxiality of the sealing plates and the gear body 14 is improved, and lubricating oil leakage is effectively avoided.
The flow equalizing plates 15 are provided with micropores at both ends, so that lubricating oil can be uniformly distributed to all positions of the gear body 14, the lubricating effect is improved, and the tooth surface abrasion is reduced.
The synchronous belt is adopted to connect the rotating shaft 16 and the hydraulic gear 18, so that the lubricating pump 7 and the power gear 2 synchronously run, the lubricating oil conveying flow is matched with the gear rotating speed, and the lubrication is more complete and timely.
The second pipeline 9 is embedded between the first box 5 and the second box 6 and is directly communicated with the inside of the flow equalizing plate 15, so that the lubricating oil flow path is shortened, and the lubricating efficiency is further improved.
The first lubrication gear 3 and the second lubrication gear 4 continuously clean the surface of the rack 1 by utilizing the residual lubricating oil on the surface in the running process, so that the tooth surface is kept clean, and the adhesive wear is reduced.
The matching of the flow equalizing plate 15 and the sealing plate, the transmission of the lubricating pump 7 and the design of the lubricating pipeline are further improved on the basis of the embodiments 1 and 2, so that the lubricating performance and the sealing performance are more excellent, and the operation is more efficient and stable.
In summary, in this embodiment, through the tight fit of the flow equalizing plate 15 and the sealing plate, the lubricating pump 7 driven by the synchronous belt and the design of the pipeline, the lubricating performance, the sealing performance and the transmission efficiency of the gear box are further improved, so that the gear box can maintain an excellent lubricating effect under severe working conditions for a long time, and the gear box runs safely and stably, thereby prolonging the service life and widening the application range. This is important for improving the reliability of the transmission and reducing maintenance costs. The gearbox has the advantages of compact structure, more excellent lubrication and sealing performance, stable and efficient operation and long service life, and can be widely applied to transmission occasions with severe working conditions such as heavy load, high speed and the like.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (8)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638238A (en) * | 2022-10-21 | 2023-01-24 | 长江三峡通航管理局 | Automatic open gear lubricating system and method for ship lock herringbone door hoist |
| CN221519767U (en) * | 2023-12-20 | 2024-08-13 | 杭州天泰汽车零部件制造有限公司 | Safe and reliable steering gear |
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| DE102011011242B4 (en) * | 2011-02-15 | 2015-04-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Gear body and method for producing a toothed body |
| CN203717814U (en) * | 2013-12-31 | 2014-07-16 | 亨利安（青岛）自动化技术有限公司 | Rack and gear transmission self-lubricating device |
| CN207195632U (en) * | 2017-08-25 | 2018-04-06 | 嘉泰数控科技股份公司 | A kind of rack-and-pinion automatic lubricating structure |
| CN220248856U (en) * | 2023-07-10 | 2023-12-26 | 浙江浙研冷挤压有限公司 | A self-lubricating gear for machine tools |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638238A (en) * | 2022-10-21 | 2023-01-24 | 长江三峡通航管理局 | Automatic open gear lubricating system and method for ship lock herringbone door hoist |
| CN221519767U (en) * | 2023-12-20 | 2024-08-13 | 杭州天泰汽车零部件制造有限公司 | Safe and reliable steering gear |
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