CN108361325B - Planetary gear transmission device - Google Patents
Planetary gear transmission device Download PDFInfo
- Publication number
- CN108361325B CN108361325B CN201810178225.4A CN201810178225A CN108361325B CN 108361325 B CN108361325 B CN 108361325B CN 201810178225 A CN201810178225 A CN 201810178225A CN 108361325 B CN108361325 B CN 108361325B
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- oil level
- planetary gear
- gear transmission
- transparent plate
- transmission device
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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
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a planetary gear transmission device which comprises a cylindrical shell, a planetary gear, a sun gear and an inner gear ring, wherein the planetary gear, the sun gear and the inner gear ring are positioned in the shell, the planetary gear transmission device further comprises an outer side cover plate and an inner side transparent plate, the outer side cover plate is arranged on an end cover of the shell, a hollow arc is arranged on the outer side cover plate, the circle center of the hollow arc is positioned at the rotation center of the planetary gear transmission device, the inner side transparent plate is positioned between the outer side cover plate and the end cover, the inner side transparent plate completely covers the hollow arc, an oil level indicating cavity for observing an oil level is arranged between the inner side transparent plate and the end cover, and the oil level indicating cavity is communicated with the interior of the shell through an oil passing hole formed in the end cover. According to the invention, the arc-shaped oil level observation window is arranged on the end cover of the planetary gear transmission device, so that the oil level and the quality of lubricating oil in the planetary gear transmission device can be directly observed in real time, the adverse effect on oil level observation caused by the rotation of the shell of the planetary gear transmission device is eliminated, and the oil level observation device is simple in structure and convenient to maintain.
Description
Technical Field
The invention relates to the technical field of transmission devices of rail transit, in particular to a planetary gear transmission device.
Background
The involute planetary gear transmission device is widely applied to speed reducers, particularly in the industries of automobiles, wind power and the like. The device has the advantages of small volume, light weight, large bearing capacity, high efficiency and stable work. Compared with the transmission of a common cylindrical gear, the transmission ratio is large, the volume and the weight can be reduced by about 50 percent, and the efficiency is improved by 3 percent. The involute planetary gear lubrication is generally splash oil lubrication, and gear box gear-mounted lubricating oil with good sealing performance is needed. If the sealing is poor or the oil quality is poor, the oil quantity is reduced, the lubrication is unreliable, and in severe cases, the heat of an inner bearing of the transmission device is excessively fixed, so that the risk of transmission failure is caused.
Because the planetary gear transmission structure is compact, and the outer end cover is non-static, the traditional oil level observation mirror device is usually designed for a static transmission shell, and is difficult to adapt to the planetary gear transmission device with the outer end cover as the rotating part. At present, the automobile industry adopts the design of an oil level gauge and a sensor, and the oil quantity in a box body and the oil quantity in a liquid level sensor sensing box are judged respectively through the oil sticking height of a scale. The oil level indicator cannot be observed in real time, and the timeliness is poor; the sensors require wiring and electrical equipment, increasing operational unreliability. The oil level observation window installed at the bottom of the gear box is used for observing the oil level in the current rail transit industry, the gear box needs to stand relatively, the position is fixed, and the oil level is observed through the glass window after the oil of the gear box falls back when the gear box is in stand. The rail industry is with a large amount of passenger, and the required reliability is much higher than that of the car, and the traditional oil level gauge adopts a blind measurement method, so that the conventional oil level gauge is inconvenient for daily observation and maintenance, and an intuitive and reliable device is urgently needed to be designed to meet the oil mass observation of the planetary gear transmission device. The invention can well solve the problem and provides more convenient and safe maintenance guarantee for the railway vehicle adopting the planetary gear transmission.
Disclosure of Invention
The invention provides an oil level observation device and a planetary gear transmission device, which can observe the oil level and oil products of a rotary gear box body in real time. The specific technical scheme is as follows.
A planetary gear transmission device comprises a cylindrical shell, a planetary gear, a sun gear and an inner gear ring, wherein the planetary gear, the sun gear and the inner gear ring are positioned in the shell, the planetary gear transmission device also comprises an oil level observation device arranged on an end cover of the shell, the oil level observation device comprises an outer side cover plate and an inner side transparent plate, a hollowed circular arc is arranged on the outer side cover plate, the circle center of the hollowed circular arc is positioned at the rotation center of the planetary gear transmission device, the inner side transparent plate is positioned between the outer side cover plate and the end cover, the inner side transparent plate completely covers the hollowed circular arc, an oil level indicating cavity used for observing the oil level is arranged between the inner side transparent plate and the end cover, and the oil level indicating cavity is communicated with the interior of the shell through an oil passing hole arranged on the end cover;
the outer side cover plate is located on the outer side of the inner side transparent plate in the axial direction, and the inner side transparent plate is located on the outer side of the end cover in the axial direction.
When the planetary gear transmission device is used, lubricating oil used for lubricating a planetary gear, a sun gear and an inner gear ring is arranged in a shell, after gear transmission is stopped, the lubricating oil is kept still for a period of time and flows into an oil level indicating cavity through an oil passing hole, engineering technicians can directly observe the oil level of the oil level indicating cavity in real time through a hollowed circular arc and an inner side transparent plate to judge whether the oil level meets requirements, when the shell rotates, the oil level observation device also rotates along with the shell, and because the circle center of the hollowed circular arc is located at the rotation center of the planetary gear transmission device, the shell stops at any position, and the engineering technicians can visually observe the height of the oil level and the quality of the lubricating oil.
Further, the maximum radius of the hollowed-out circular arc is used for indicating that the oil level in the planetary gear transmission device is at the lowest designed oil level, and the minimum radius of the hollowed-out circular arc is used for indicating that the oil level in the planetary gear transmission device is at the highest designed oil level. Thus, when the oil level is observed to be at the design minimum level, the lubricating oil needs to be replenished, and when the oil level reaches the design maximum level, the oil replenishment is prohibited.
Furthermore, the hollowed-out arcs have more than two sections and are uniformly distributed around the circle center, the maximum radius of all the hollowed-out arcs is the same, and the minimum radius of all the hollowed-out arcs is the same. The multistage fretwork circular arc not only can provide oil level show window, and the junction of multistage fretwork circular arc can also strengthen the intensity of outer side apron, increases the area of contact of outer side apron and inboard transparent plate, improves oil level viewing device's stability.
Further, the distance from the oil passing holes to the circle center is larger than the maximum radius of the hollowed-out arc, and a plurality of oil passing holes are uniformly arranged around the circle center. This facilitates the introduction of the lubricating oil in the housing into the oil level indicating chamber.
Further, the inner transparent plate is made of organic glass.
Furthermore, the inner side transparent plate protrudes towards and is embedded into the hollow arc corresponding to the hollow arc. The assembly between inboard transparent plate and the outside apron of being convenient for like this is favorable to the connection between inboard transparent plate and the outside apron to be sealed, and makes the oil level indicate the chamber and is closer to the outside of planetary gear transmission.
Further, the oil level indicating chamber is formed by the inner transparent plate protruding outward and/or the end cap recessed inward.
Further, the outer side cover plate is fixed on the end cover through a fastener, a sealing material is arranged between the outer side cover plate and the end cover, and the inner side transparent plate is fixed with the outer side cover plate and/or the end cover in a sealing mode. This prevents the oil level indication chamber from leaking oil.
Furthermore, an oil discharge hole is formed in the edge part of the end cover, and an oil discharge plug is arranged in the oil discharge hole; preferably, the number of the oil drain holes is more than 4 and is uniformly distributed on the edge part of the end cover. This facilitates the replacement of the lubricating oil in the star gear transmission.
Based on the same inventive concept, the invention also relates to a planetary gear transmission device, and the specific technical scheme is as follows.
A planetary gear transmission device comprises a cylindrical shell, a planetary gear, a sun gear and an inner gear ring which are positioned in the shell, the planetary gear transmission device also comprises an oil level observation device arranged on the end cover of the shell, the oil level observation device comprises an outer side cover plate and an inner side transparent plate, the outer side cover plate comprises an outer ring cover plate and an inner ring cover plate, a hollow ring is arranged between the outer ring cover plate and the inner ring cover plate, the circle center of the hollow ring is positioned at the rotation center of the planetary gear transmission device, the inner side transparent plate is positioned between the outer side cover plate and the end cover, the inner transparent plate completely covers the hollowed-out circular ring, an oil level indicating cavity for observing the oil level is arranged between the inner transparent plate and the end cover, the oil level indicating cavity is communicated with the interior of the shell through an oil passing hole formed in the end cover.
According to the invention, the arc-shaped oil level observation window is arranged on the end cover of the planetary gear transmission device, so that the oil level and the quality of lubricating oil in the planetary gear transmission device can be directly observed in real time, and the adverse effect on oil level observation caused by the rotation of the shell of the planetary gear transmission device is eliminated.
Drawings
Fig. 1 is an exploded view of an oil level observation apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a planetary gear transmission according to embodiment 1 of the invention;
fig. 3 is an internal schematic view of a planetary gear transmission according to embodiment 1 of the invention;
fig. 4 is a sectional view of a planetary gear transmission according to embodiment 1 of the invention;
fig. 5 is a partially enlarged view of fig. 4.
In the figure: the oil level gauge comprises a shell 1, an outer side cover plate 2, an inner side transparent plate 3, a sun gear 4, an inner gear ring 5, a planet gear 6, an oil passing hole 7, an oil level indicating cavity 8, an oil discharging hole 9, a fastening screw 10, an oil discharging plug 11, an oil discharging plug 2a, a designed highest oil level 2b, a designed lowest oil level 2c and a hollowed circular arc.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Example 1
Referring to fig. 1-5, a planetary gear transmission comprises a cylindrical housing 1, and a planetary gear 6, a sun gear 4 and an inner gear ring 5 which are arranged in the housing 1, the planetary gear transmission device also comprises an oil level observation device arranged on an end cover of the shell 1, the oil level observation device comprises an outer side cover plate 2 and an inner side transparent plate 3, the outer side cover plate 2 is provided with a hollow arc 2c, the circle center of the hollowed arc 2c is positioned at the rotation center of the planetary gear transmission device, the inner transparent plate 3 is positioned between the outer cover plate 2 and the end cover, the inner transparent plate 3 completely covers the hollowed-out arc 2c, an oil level indicating cavity 8 for observing the oil level is arranged between the inner transparent plate 3 and the end cover, the oil level indicating cavity 8 is communicated with the inside of the shell 1 through an oil passing hole 7 arranged on the end cover; the maximum radius of the hollowed circular arc 2c is used for indicating that the oil level in the planetary gear transmission device is at the designed lowest oil level 2b, and the minimum radius of the hollowed circular arc 2c is used for indicating that the oil level in the planetary gear transmission device is at the designed highest oil level 2 a. Thus, when the oil level is observed to be at the design minimum level, the lubricating oil needs to be replenished, and when the oil level reaches the design maximum level, the oil replenishment is prohibited. The outer side cover plate 2 is positioned on the outer side of the inner side transparent plate 3 in the axial direction, the inner side transparent plate 3 is positioned on the outer side of the end cover in the axial direction, and the axial direction is the direction of the rotating central line of the star gear transmission device;
when the planetary gear transmission device is used, lubricating oil for lubricating a planetary gear 6, a sun gear 4 and an inner gear ring 5 is arranged in a shell 1, after gear transmission is stopped, the lubricating oil is kept still for a period of time and flows into an oil level indicating cavity 8 through an oil passing hole 7, an engineer can directly observe the oil level of the oil level indicating cavity 8 in real time through a hollowed-out arc 2c and an inner side transparent plate 3 to judge whether the oil level meets requirements, when the shell 1 rotates, an oil level observation device also rotates along with the shell, and the shell stops at any position because the circle center of the hollowed-out arc is located at the rotation center of the planetary gear transmission device, and the engineer can visually observe the height of the oil level and the quality of the lubricating oil.
Further, the outer side cover plate 2 is made of a metal material, the hollow arcs 2c are more than two sections and are uniformly distributed around the circle center, the maximum radii of all the hollow arcs 2c are the same, and the minimum radii of all the hollow arcs 2c are the same. The multistage fretwork circular arc not only can provide oil level show window, and the junction of multistage fretwork circular arc can also strengthen the intensity of outer side apron, increases the area of contact of outer side apron and inboard transparent plate, improves oil level viewing device's stability.
Further, the distance from the oil passing holes 7 to the circle center is larger than the maximum radius of the hollowed circular arc 2c, and a plurality of oil passing holes 7 are uniformly arranged around the circle center. This facilitates the introduction of the lubricating oil in the housing 1 into the oil level indication chamber 8.
Further, the inner transparent plate 3 is made of organic glass.
Further, the inner side transparent plate 3 protrudes towards the hollow arc 2c corresponding to the hollow arc 2c and is embedded into the hollow arc 2 c. Thus, the assembly between the inner transparent plate and the outer cover plate is convenient; the oil level indicating chamber 8 may be formed by the inner transparent plate 3 protruding outward and/or the end cap being recessed inward.
Further, the outer side cover plate 2 is fixed on the end cover through a fastening screw 10, a sealant is smeared between the outer side cover plate 2 and the end cover, and the inner side transparent plate 3 is adhered to the outer side cover plate 2 through a loctite 243. It should be noted that, when the oil level indication chamber 8 is formed by the end cap being recessed inward, the inner transparent plate 3 may be fixed to the end cap in a sealing manner to prevent the oil level indication chamber 8 from leaking oil.
Furthermore, an oil discharge hole 9 is formed in the edge part of the end cover, and an oil discharge plug 11 is arranged in the oil discharge hole 9; preferably, the number of the oil drain holes 9 is more than 4 and is uniformly distributed on the edge part of the end cover. This facilitates the replacement of the lubricating oil in the star gear transmission.
Example 2
The difference from the above example 1 is: the hollowed-out arc 2c in the embodiment 1 is replaced by a hollowed-out circular ring, the outer side cover plate 2 comprises an outer ring cover plate and an inner ring cover plate which are separated, and the hollowed-out circular ring is arranged between the outer ring cover plate and the inner ring cover plate.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A planetary gear transmission device comprises a cylindrical shell, a planetary gear, a sun gear and an inner gear ring, wherein the planetary gear transmission device comprises an oil level observation device arranged on an end cover of the shell, the oil level observation device comprises an outer side cover plate and an inner side transparent plate, a hollowed circular arc is arranged on the outer side cover plate, the circle center of the hollowed circular arc is located at the rotation center of the planetary gear transmission device, the inner side transparent plate is located between the outer side cover plate and the end cover, the inner side transparent plate completely covers the hollowed circular arc, an oil level indicating cavity for observing the oil level is arranged between the inner side transparent plate and the end cover, and the oil level indicating cavity is communicated with the inside of the shell through an oil passing hole formed in the end cover; the maximum radius of the hollowed-out circular arc is used for indicating that the oil level in the planetary gear transmission device is at the designed lowest oil level, and the minimum radius of the hollowed-out circular arc is used for indicating that the oil level in the planetary gear transmission device is at the designed highest oil level;
the outer side cover plate is positioned on the outer side of the inner side transparent plate in the axial direction, and the inner side transparent plate is positioned on the outer side of the end cover in the axial direction;
the inner side transparent plate is corresponding to the hollow arc and protrudes towards and is embedded into the hollow arc.
2. A planetary gear transmission according to claim 1, wherein the hollowed out circular arcs have more than two segments and are evenly distributed around the center of the circle, the maximum radius of all the hollowed out circular arcs is the same, and the minimum radius of all the hollowed out circular arcs is the same.
3. A planetary gear transmission according to claim 1, wherein the distance from the oil passing hole to the center of the circle is greater than the maximum radius of the hollow arc, and a plurality of oil passing holes are uniformly arranged around the center of the circle.
4. A planetary gearing according to claim 1, characterized in that said inner transparent plate is made of plexiglass.
5. An epicyclic gear assembly according to claim 1, wherein said oil level indicating chamber is formed by said inner transparent plate protruding outwards and/or said end cap being recessed inwards.
6. A planetary gear transmission according to claim 1, wherein the outer cover plate is fixed to the end cap by a fastener, and a sealing material is provided between the outer cover plate and the end cap, and the inner transparent plate is fixed to the outer cover plate and/or the end cap in a sealing manner.
7. A planetary gear transmission according to claim 1, wherein the edge portion of the end cover is provided with an oil drain hole, and an oil drain plug is provided in the oil drain hole.
8. A planetary gear transmission device comprises a cylindrical shell, a planetary gear, a sun gear and an inner gear ring which are positioned in the shell, the planetary gear transmission device also comprises an oil level observation device arranged on the end cover of the shell, the oil level observation device comprises an outer side cover plate and an inner side transparent plate, the outer side cover plate comprises an outer ring cover plate and an inner ring cover plate, a hollow ring is arranged between the outer ring cover plate and the inner ring cover plate, the circle center of the hollow ring is positioned at the rotation center of the planetary gear transmission device, the inner side transparent plate is positioned between the outer side cover plate and the end cover, the inner transparent plate completely covers the hollowed-out circular ring, an oil level indicating cavity for observing the oil level is arranged between the inner transparent plate and the end cover, the oil level indicating cavity is communicated with the interior of the shell through an oil passing hole formed in the end cover; the maximum radius of the hollowed-out circular ring is used for indicating that the oil level in the planetary gear transmission device is at the designed lowest oil level, and the minimum radius of the hollowed-out circular ring is used for indicating that the oil level in the planetary gear transmission device is at the designed highest oil level;
the outer side cover plate is positioned on the outer side of the inner side transparent plate in the axial direction, and the inner side transparent plate is positioned on the outer side of the end cover in the axial direction;
the inner side transparent plate is protruded towards the hollow circular ring and embedded into the hollow circular ring corresponding to the hollow circular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178225.4A CN108361325B (en) | 2018-03-05 | 2018-03-05 | Planetary gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178225.4A CN108361325B (en) | 2018-03-05 | 2018-03-05 | Planetary gear transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN108361325A CN108361325A (en) | 2018-08-03 |
| CN108361325B true CN108361325B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810178225.4A Active CN108361325B (en) | 2018-03-05 | 2018-03-05 | Planetary gear transmission device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1068626A (en) * | 1912-10-28 | 1913-07-29 | George D Buck | Lubricant-indicator for engine-crank cases. |
| US6485110B1 (en) * | 2000-09-26 | 2002-11-26 | Caterpiller Inc | Drive hub having an oil check hole |
| US6575028B2 (en) * | 2001-03-12 | 2003-06-10 | Col-Ven S.A. | Auto-cleaning oil-gauge for axle-ends of vehicles |
| CN203670685U (en) * | 2013-10-12 | 2014-06-25 | 南车青岛四方机车车辆股份有限公司 | Gear box oil level view window structure for railway vehicles |
| CN205209588U (en) * | 2015-12-01 | 2016-05-04 | 长沙中传机械有限公司 | Structure is observed to oil level |
| CN106763657A (en) * | 2017-01-23 | 2017-05-31 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic gear box oil level form |
-
2018
- 2018-03-05 CN CN201810178225.4A patent/CN108361325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1068626A (en) * | 1912-10-28 | 1913-07-29 | George D Buck | Lubricant-indicator for engine-crank cases. |
| US6485110B1 (en) * | 2000-09-26 | 2002-11-26 | Caterpiller Inc | Drive hub having an oil check hole |
| US6575028B2 (en) * | 2001-03-12 | 2003-06-10 | Col-Ven S.A. | Auto-cleaning oil-gauge for axle-ends of vehicles |
| CN203670685U (en) * | 2013-10-12 | 2014-06-25 | 南车青岛四方机车车辆股份有限公司 | Gear box oil level view window structure for railway vehicles |
| CN205209588U (en) * | 2015-12-01 | 2016-05-04 | 长沙中传机械有限公司 | Structure is observed to oil level |
| CN106763657A (en) * | 2017-01-23 | 2017-05-31 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rail traffic gear box oil level form |
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| CN108361325A (en) | 2018-08-03 |
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