CN112211995B - Self-adaptive lubricating transverse multistage planetary gear reducer - Google Patents
Self-adaptive lubricating transverse multistage planetary gear reducer Download PDFInfo
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- CN112211995B CN112211995B CN202011432859.1A CN202011432859A CN112211995B CN 112211995 B CN112211995 B CN 112211995B CN 202011432859 A CN202011432859 A CN 202011432859A CN 112211995 B CN112211995 B CN 112211995B
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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
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
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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
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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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
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the 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
- F16H57/04—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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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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
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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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
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0486—Gearings with gears having orbital motion with fixed gear ratio
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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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H2001/289—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two or more coaxial and identical sets of orbital gears, e.g. for distributing torque between the coaxial sets
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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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
Abstract
The invention relates to the technical field of speed reducers, in particular to a self-adaptive lubricating transverse multistage planetary gear speed reducer which comprises a shell and a multistage planetary gear assembly arranged in the shell, wherein an accommodating space is formed in the shell; the multistage planetary gear assembly comprises a first-stage planetary gear mechanism and a last-stage planetary gear mechanism, wherein the rotating diameter of the first-stage planetary gear mechanism is smaller than that of the last-stage planetary gear mechanism; the accommodating space is arranged in a step shape along the axial direction of the accommodating space, an oil outlet is arranged at the bottom of the shell, and the oil outlet is communicated with the bottom of the final-stage rotating cavity; the oil duct is arranged between the outer wall of the shell and the accommodating space, arranged at the top of the shell and arranged along the length direction of the shell, one end of the oil duct is communicated with the first-stage rotating cavity, and the oil duct further comprises an oil inlet communicated with the outside and a first branch communicated with the last-stage rotating cavity. The invention also realizes real-time and dynamic intelligent control of the lubricating oil quantity of the speed reducer so as to ensure the stable operation of equipment.
Description
Technical Field
The invention relates to the technical field of planetary gear speed reducers, in particular to a self-adaptive lubricating transverse multistage planetary gear speed reducer.
Background
With the continuous development of the speed reducer industry, more and more enterprises apply planetary gear speed reducers, the planetary speed reducers are industrial products, and the planetary speed reducers structurally comprise main components such as a sun gear, a planetary gear set, an inner gear ring, a planet carrier and the like, wherein the sun gear is connected with input equipment, the sun gear is arranged in the center of the inner gear ring, the planet gear set is provided with at least three planetary gear sets which are uniformly distributed between the sun gear and the inner gear ring, and the planet carrier is an output component and is connected with the planetary gear set; in order to adjust the transmission ratio, a plurality of sets of planetary gear structures can be arranged along the axial direction of the sun gear, and the sun gear of the next stage is connected with the planet carrier of the previous stage; in order to realize adjustment of a larger transmission ratio, the sizes of the inner gear rings of a plurality of sets of planetary gears are gradually changed, and when the planetary gear reducer is horizontally placed, the problem of lubrication inside the planetary gear reducer is increasingly highlighted.
In the prior art, for lubrication of a horizontal multi-stage planetary gear reducer, lubricating oil is mostly poured into a shell of the planetary gear reducer, and in order to lubricate all the multi-stage planetary gears, the pouring height of the lubricating oil is at least set to be equal to the axial center line of a sun gear.
However, the lubricating mode has the problems of lubricating oil waste and uneven lubrication, because the planetary gear reducer is horizontally arranged, the rotating speed of the planetary gear close to the output end is slow, the rotating diameter is large, and the top end part of the inner gear ring cannot be well lubricated; in addition, the planet gear close to the input end is easy to radiate more heat due to small rotating diameter and high rotating speed, and the arrangement of excessive lubricating oil is not beneficial to the radiation of heat.
In view of the above problems, the inventor of the present invention has actively researched and innovated based on the practical experience and professional knowledge of the product engineering application for many years, and intends to create a self-adaptive lubricating horizontal multi-stage planetary gear reducer, so that the planetary gear reducer has higher practicability.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided is a self-adaptive lubricating horizontal multi-stage planetary gear reducer, which reduces the using amount of lubricating oil and improves the lubricating effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a lubricated horizontal multistage planetary gear reducer of self-adaptation, includes casing and the multistage planetary gear assembly of setting in the casing, wherein:
the shell is integrally columnar, and an accommodating space for accommodating the multistage planetary gear assembly is formed in the shell along the axial direction of the shell;
the multistage planetary gear assembly comprises a first-stage planetary gear mechanism and a last-stage planetary gear mechanism, the first-stage planetary gear mechanism is connected with an external power input device, the last-stage planetary gear mechanism is in transmission connection with the first-stage planetary gear mechanism, and the rotating diameter of the first-stage planetary gear mechanism is smaller than that of the last-stage planetary gear mechanism;
the accommodating space is arranged in a step shape along the axial direction of the accommodating space and comprises a primary rotating cavity for accommodating the primary planetary gear mechanism and a final rotating cavity for accommodating the final planetary gear mechanism, an oil outlet is formed in the bottom of the shell, and the oil outlet is communicated with the bottom of the final rotating cavity;
the oil duct is arranged between the outer wall of the shell and the accommodating space, is arranged at the top of the shell and is arranged along the length direction of the shell, one end of the oil duct is communicated with the first-stage rotating cavity, and the oil duct further comprises an oil inlet communicated with the outside and a first branch communicated with the last-stage rotating cavity.
Further, the multistage planetary gear assemblies each comprise a sun gear, at least 3 planet gears, an inner gear ring and a planet carrier, wherein;
the sun gear is connected with higher level power input device, the planet wheel equipartition is in sun gear week side and with the sun gear meshing, the planet wheel with the ring gear meshing just rotates to be fixed on the planet carrier, be provided with the output shaft on the planet carrier, the output shaft is connected with next stage planetary gear mechanism.
Further, the multistage planetary gear assembly further comprises an intermediate planetary gear mechanism, the intermediate planetary gear mechanism is arranged between the first-stage planetary gear mechanism and the last-stage planetary gear mechanism, and the accommodating space further comprises an intermediate rotating cavity for accommodating the intermediate planetary gear mechanism.
Further, the intermediate planetary gear mechanism is provided with at least 1 stage.
Further, be provided with between first stage rotation cavity and the last stage rotation cavity and keep off the oil piece, keep off the oil piece and follow the width direction setting of accommodation space, just keep off the both ends and the bottom of oil piece with the accommodation space is connected, the height that keeps off the oil piece is not less than the position of planet wheel pivot center when planetary gear rotates to corresponding cavity bottom.
Furthermore, a plurality of openings are arranged at the top of the oil blocking piece, and the openings are uniformly distributed along the length direction of the oil blocking piece.
Further, the oil duct further comprises a second branch, the second branch is communicated with the middle rotating cavity, the first branch and the second branch are both obliquely arranged, and an included angle between the oblique direction and the oil flow direction in the oil duct is larger than 90 degrees.
Further, first branch road and second branch road parallel arrangement, and first branch road and second branch road top all have the oil storage tank, just the degree of depth of the oil storage tank at second branch road top is greater than the degree of depth of the oil storage tank at first branch road top.
The invention has the beneficial effects that: according to the invention, through the oil duct arranged in the top wall of the shell, the tail end of the oil duct is connected with the first-stage rotating cavity, and the oil duct is communicated with the last-stage rotating cavity through the first branch, so that lubricating oil can enter through the oil inlet and lubricate the planetary gear mechanism from the top of the inner gear ring, and through the arrangement of the oil outlet at the bottom of the last-stage rotating cavity, the lubricating oil can enter from the oil inlet and flow out from the oil outlet. Meanwhile, compared with the prior art, the reduction of the amount of lubricating oil in the shell can reduce the power loss of splashing and stirring of the lubricating oil and improve the power transmission efficiency of the speed reducer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an axial cross-sectional view of a transverse, multi-stage planetary gear reducer with adaptive lubrication in an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of the flow structure of the lubricant inside the housing according to the embodiment of the present invention;
FIG. 6 is a view taken along line D of FIG. 5 in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of a connection structure of a reducer and a filter according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a circulating lubrication oil path of the speed reducer in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In order to reduce the using amount of lubricating oil in a horizontally placed speed reducer in the prior art, the top of a speed reducer shell is provided with an oil duct, the top of a planetary gear mechanism is directly lubricated through the oil duct, an oil blocking sheet is arranged in a stepped shell inner accommodating space, and multi-step type temporary storage of the lubricating oil is formed through the arrangement of the oil blocking sheet, so that all stages of planetary gear mechanisms can be effectively lubricated, and in addition, a circulating oil path is formed through the arrangement of the oil duct, the accommodating cavity, an oil inlet and an oil outlet, so that the heat dissipation in the shell can be accelerated, and the service life of the speed reducer is prolonged.
The self-adaptive lubricating transverse multistage planetary gear reducer as shown in fig. 1 to 6 comprises a housing 10 and a multistage planetary gear assembly 20 arranged in the housing 10, wherein:
the casing 10 is cylindrical as a whole, and an accommodating space 11 for accommodating the multistage planetary gear assembly 20 is formed in the casing 10 along the axial direction; the multistage planetary gear assembly 20 comprises a first-stage planetary gear mechanism 21 and a last-stage planetary gear mechanism 23, wherein the first-stage planetary gear mechanism 21 is connected with an external power input device, the last-stage planetary gear mechanism 23 is in transmission connection with the first-stage planetary gear mechanism 21, and the rotating diameter of the first-stage planetary gear mechanism 21 is smaller than that of the last-stage planetary gear mechanism 23; the accommodating space 11 is arranged along the axial direction of the accommodating space in a step shape and comprises a first-stage rotating cavity 11a used for accommodating the first-stage planetary gear mechanism 21 and a last-stage rotating cavity 11b used for accommodating the last-stage planetary gear mechanism 23, an oil outlet 11c is formed in the bottom of the shell 10, and the oil outlet 11c is communicated with the bottom of the last-stage rotating cavity 11 b; the housing 10 further has an oil passage 12 therein, the oil passage 12 is disposed between an outer wall of the housing 10 and the accommodating space 11, and is disposed at a top position of the housing 10 and along a length direction of the housing 10, one end of the oil passage 12 is communicated with the first-stage rotating cavity 11a, and the oil passage 12 further includes an oil inlet 12a communicated with the outside and a first branch 12b communicated with the last-stage rotating cavity 11 b.
During lubrication, lubricating oil is injected through the oil inlet 12a, a part of the lubricating oil injected into the oil passage 12 enters the tops of the first-stage rotating cavity 11a and the last-stage rotating cavity 11b through the first branch 12b and the tail end of the oil passage 12, the lubricating oil is firstly contacted with an internal gear, then sequentially contacts with the planet wheel and the sun wheel, so as to realize integral lubrication, and in addition, as shown in figure 1, lubricating oil flowing into the first-stage rotating cavity 11a flows to the last-stage rotating cavity 11b at the bottom of the accommodating space 11, while flowing, the bottoms of the first-stage planetary gear mechanism 21 and the last-stage planetary gear mechanism 23 are lubricated again, through the arrangement, compared with the lubricating oil quantity filled with more than half of cavities in the prior art, the lubricating oil quantity is saved, meanwhile, the resistance of the lubricating oil soaked in the lubricating oil can be reduced, and the using effect of the lubricating oil is improved.
In the above embodiment, by providing the oil passage 12 in the top wall of the housing 10, and connecting the end of the oil passage 12 to the primary rotating cavity 11a, and the oil passage 12 communicates with the final-stage rotating cavity 11b through the first branch 12b, so that lubricating oil can enter through the oil inlet 12a and lubricate the planetary gear mechanism from the top of the ring gear, and by the arrangement of the oil outlet 11c at the bottom of the final rotation cavity 11b, so that the lubricating oil flows from the oil inlet 12a to the oil outlet 11c, the arrangement can reduce the use of the lubricating oil on one hand, in addition, the lubricating oil can flow in from the oil inlet 12a and flow out from the oil outlet 11c, so that the heat exchange between the inside of the shell 10 and the outside can be accelerated, and the heat dissipation efficiency of the gear is improved.
Specifically, the multistage planetary gear assemblies 20 each include a sun gear, at least 3 planet gears, an inner gear ring, and a planet carrier, wherein;
the sun gear is connected with a superior power input device, the planet gears are uniformly distributed on the peripheral side of the sun gear and meshed with the sun gear, the planet gears are meshed with the inner gear ring and are rotationally fixed on the planet carrier, and the planet carrier is provided with an output shaft which is connected with a next-stage planetary gear mechanism. Through set up the output shaft on the planet carrier, can set up multistage planetary gear mechanism, improve the setting variety of the drive ratio of speed reducer.
In the embodiment of the present invention, the multistage planetary gear assembly 20 further includes an intermediate planetary gear mechanism 22, the intermediate planetary gear mechanism 22 is disposed between the first stage planetary gear mechanism 21 and the last stage planetary gear mechanism 23, and the accommodating space 11 further includes an intermediate rotation cavity 11d for accommodating the intermediate planetary gear mechanism 22. It should be noted here that the intermediate planetary gear mechanism 22 is provided with at least 1 stage, and may be provided with a plurality of stages.
Because the interior of the accommodating space 11 is in a step shape, the lubricating oil directly flows into the next stage with a lower height after flowing into the bottom, and the lubricating effect of the ring gear of the stage is not ideal, and in order to further improve the lubricating effect of the lubricating oil at the bottom of each rotating space, in the embodiment of the invention, as shown in fig. 4 and 5, an oil blocking piece 11e is arranged between the first-stage rotating cavity 11a and the last-stage rotating cavity 11b, the oil blocking piece 11e is arranged along the width direction of the accommodating space 11, two ends and the bottom of the oil blocking piece 11e are connected with the accommodating space 11, and the height of the oil blocking piece 11e is not lower than the position of the planet wheel rotating shaft center when the planet gear rotates to the bottom. In the above embodiment, through the arrangement of the oil blocking piece 11e, a certain amount of lubricating oil is reserved in each stage of rotation space, so that the planet wheel can be soaked when rotating to the bottom, and the gear contacted with the planet wheel can be further lubricated.
In order to further improve the balance degree of the flowing lubricating oil, as shown in fig. 6, a plurality of openings are arranged at the top of the oil baffle 11e, and the plurality of openings are uniformly distributed along the length direction of the oil baffle 11 e. Through the arrangement, the fluidity of the lubricating oil is more balanced, and a stable circulating oil path can be formed after the oil inlet 12a and the oil outlet 11c are connected with the oil pump 30, so that heat generated when the gear rotates is discharged through the flowing of the oil in time, and the heat dissipation effect of the speed reducer is improved.
In the embodiment of the present invention, since the planetary gear is provided with a plurality of sets, for this purpose, as shown in fig. 5, the oil passage 12 further includes a second branch 12c, the second branch 12c is communicated with the intermediate rotating cavity 11d, the first branch 12b and the second branch 12c are both obliquely arranged, and an included angle between the oblique direction and the oil flow direction in the oil passage 12 is greater than 90 degrees. It should be noted here that the oblique direction is set opposite to the oil path traveling direction in order to equalize the branch oil amounts, so that when the lubricating oil travels in the oil path 12, on the one hand, the lubricating oil can flow to the end of the oil path 12 and enter the first-stage rotating cavity 11a, and on the other hand, each branch can have enough oil amount.
Further, in order to further adjust the oil amount of the first branch 12b and the second branch 12c, please continue to refer to fig. 5, the first branch 12b and the second branch 12c are disposed in parallel, and the top of the first branch 12b and the top of the second branch 12c both have oil reservoirs, and the depth of the oil reservoir at the top of the second branch 12c is greater than the depth of the oil reservoir at the top of the first branch 12 b. Because the length of second branch road 12c is greater than first branch road 12b, it is bigger to lead to lubricating oil to enter into required resistance in the accommodation space 11 from second branch road 12c, and the degree of depth through the oil storage tank on second branch road 12c is greater than the setting of the degree of depth of the oil storage tank on first branch road 12b, increases the oil pressure in second branch road 12c, through the degree of depth of rational design oil storage tank and the length of branch road, realizes that the oil mass of each branch road flows according to setting for.
In the embodiment of the invention, the oil inlet 12a and the oil outlet 11c are connected with the oil pump 30 and the filter 40 through pipelines, and a complete lubricating oil circulating lubricating oil path is formed through the filtering of the filter 40 and the power output of the oil pump 30, so that the service life of lubricating oil is prolonged, and the use reliability of the device is also improved. In the embodiment of the present invention, the housing 10 may be sectioned into a plurality for easy installation. In order to realize real-time dynamic intelligent control of the lubricating oil amount of the speed reducer and ensure stable operation of equipment, as shown in fig. 8, two thermometers are respectively connected to two sides of the speed reducer, namely a first thermometer is arranged at an oil inlet 12a of the speed reducer, a second thermometer and an oil temperature comparator are arranged at an oil outlet 11c of the speed reducer, the oil temperature comparator is used for detecting temperature difference change in unit flow, meanwhile, a temperature control valve 50 is also arranged on a main oil path, the temperature control valve 50 is electrically connected with the oil temperature comparator, the temperature control valve 50 intelligently controls the lubricating oil amount according to the result of the oil temperature comparator, and particularly, when the oil temperature comparator detects that the temperature difference is lower than a set value, inflow of lubricating oil can be reduced; when the temperature difference is larger than a set value, the inflow of the lubricating oil is increased; in addition, the embodiment of the invention is also provided with an alarm function, namely when the oil temperature comparator detects that the value of the temperature difference is greater than the upper limit temperature of the system, an alarm signal is sent, and meanwhile, a stop signal is sent to the motor, so that the motor is stopped. Real-time and dynamic intelligent control of the amount of lubricating oil is realized through the arrangement, and stable operation of equipment can be ensured.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a lubricated horizontal multistage planetary gear reducer of self-adaptation which characterized in that, includes casing and the multistage planetary gear subassembly of setting in the casing, wherein:
the shell is integrally columnar, and an accommodating space for accommodating the multistage planetary gear assembly is formed in the shell along the axial direction of the shell;
the multistage planetary gear assembly comprises a first-stage planetary gear mechanism and a last-stage planetary gear mechanism, the first-stage planetary gear mechanism is connected with an external power input device, the last-stage planetary gear mechanism is in transmission connection with the first-stage planetary gear mechanism, and the rotating diameter of the first-stage planetary gear mechanism is smaller than that of the last-stage planetary gear mechanism;
the accommodating space is arranged in a step shape along the axial direction of the accommodating space and comprises a primary rotating cavity for accommodating the primary planetary gear mechanism and a final rotating cavity for accommodating the final planetary gear mechanism, an oil outlet is formed in the bottom of the shell, and the oil outlet is communicated with the bottom of the final rotating cavity;
the oil duct is arranged between the outer wall of the shell and the accommodating space, arranged at the top of the shell and arranged along the length direction of the shell, one end of the oil duct is communicated with the first-stage rotating cavity, and the oil duct also comprises an oil inlet communicated with the outside and a first branch communicated with the last-stage rotating cavity;
the multistage planetary gear assemblies each comprise a sun gear, at least 3 planet gears, an inner gear ring and a planet carrier, wherein,
the sun gear is connected with a higher-level power input device, the planet gears are uniformly distributed on the periphery of the sun gear and meshed with the sun gear, the planet gears are meshed with the inner gear ring and are rotationally fixed on the planet carrier, the planet carrier is provided with an output shaft, and the output shaft is connected with a next-level planetary gear mechanism;
the multistage planetary gear assembly further comprises an intermediate planetary gear mechanism, the intermediate planetary gear mechanism is arranged between the first-stage planetary gear mechanism and the last-stage planetary gear mechanism, and the accommodating space further comprises an intermediate rotating cavity for accommodating the intermediate planetary gear mechanism;
an oil baffle sheet is arranged between the first-stage rotating cavity and the last-stage rotating cavity, the oil baffle sheet is arranged along the width direction of the accommodating space, two ends and the bottom of the oil baffle sheet are connected with the accommodating space, and the height of the oil baffle sheet is not lower than the position of the center of the rotating shaft of the planet wheel when the planet gear rotates to the bottom of the corresponding cavity;
the oil duct also comprises a second branch, the second branch is communicated with the middle rotating cavity, the first branch and the second branch are both obliquely arranged, and an included angle between the oblique direction and the oil flow direction in the oil duct is larger than 90 degrees;
the first branch and the second branch are arranged in parallel, oil storage grooves are formed in the tops of the first branch and the second branch, and the depth of the oil storage groove in the top of the second branch is larger than that of the oil storage groove in the top of the first branch;
the oil inlet and the oil outlet are connected with an oil pump and a filter through pipelines to form a complete circulating lubrication oil path.
2. The adaptively-lubricated, transverse, multi-stage planetary gear reducer of claim 1, wherein the intermediate planetary gear mechanism is provided with at least 1 stage.
3. The self-adaptive-lubrication transverse multistage planetary gear reducer according to claim 1, wherein a plurality of openings are formed in the top of the oil baffle, and the plurality of openings are uniformly distributed along the length direction of the oil baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011432859.1A CN112211995B (en) | 2020-12-10 | 2020-12-10 | Self-adaptive lubricating transverse multistage planetary gear reducer |
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| CN202011432859.1A CN112211995B (en) | 2020-12-10 | 2020-12-10 | Self-adaptive lubricating transverse multistage planetary gear reducer |
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| CN112211995B true CN112211995B (en) | 2021-02-19 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3517042A1 (en) * | 1985-05-11 | 1986-11-13 | Mannesmann AG, 4000 Düsseldorf | GEAR FOR A GEARBOX |
| CN2766117Y (en) * | 2005-01-27 | 2006-03-22 | 荆州市巨鲸传动机械有限公司 | Complete built-in lubricating three-stage planet gear reducer |
| CN107013673B (en) * | 2017-06-13 | 2023-08-04 | 国电联合动力技术有限公司 | Wind turbine generator gearbox lubrication system and fault monitoring method of temperature control valve of wind turbine generator gearbox lubrication system |
| CN109027212A (en) * | 2018-10-31 | 2018-12-18 | 南京高速齿轮制造有限公司 | Wind power speed-increasing gearbox Lubricating Oil line structure |
| CN109580216A (en) * | 2019-02-15 | 2019-04-05 | 国电联合动力技术有限公司 | The intelligent trouble early warning system and its method and unit of gearbox lubrication cooling system |
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