CN111927927A - Hydraulic gear shifting main drive planetary reducer - Google Patents
Hydraulic gear shifting main drive planetary reducer Download PDFInfo
- Publication number
- CN111927927A CN111927927A CN202010878209.3A CN202010878209A CN111927927A CN 111927927 A CN111927927 A CN 111927927A CN 202010878209 A CN202010878209 A CN 202010878209A CN 111927927 A CN111927927 A CN 111927927A
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- Prior art keywords
- gear shifting
- gear
- planetary
- spline shaft
- planetary reduction
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 230000009467 reduction Effects 0.000 claims abstract description 48
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 230000005641 tunneling Effects 0.000 abstract description 3
- 239000000969 carrier Substances 0.000 description 4
- 244000309464 bull Species 0.000 description 3
- 241000283216 Phocidae Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a hydraulic gear shifting main drive planetary reducer which comprises a motor, a gear shifting system and a planetary reduction system, wherein the gear shifting system comprises a gear shifting mechanism and a planetary reduction mechanism; the gear shifting system comprises a gear shifting spline shaft, a gear shifting mechanism is sleeved on the gear shifting spline shaft, a gear shifting gear set is arranged on one side of the gear shifting mechanism, and the gear shifting gear set is connected with the spline shaft in a shaft coupling mode; one end of the spline shaft is connected with the gear shifting spline shaft through a bearing; the planetary reduction system comprises a plurality of stages of planetary reduction mechanisms. The invention has reasonable design, compact structure, convenient, safe and reliable remote gear shifting operation; different torques are transmitted through the combined transmission of the parallel stage, the gear shifting mechanism and the multi-stage planetary reducing mechanism, so that the application range of the equipment is expanded; the transmission reliability and efficiency of the planetary reducer are improved, so that the loading capacity, reliability and construction efficiency of the shield tunneling machine are greatly improved.
Description
Technical Field
The invention relates to the field of shield machine speed reducers, in particular to a hydraulic gear shifting main drive planetary speed reducer.
Background
The 21 st century is a century of large underground space development, and a shield machine, which is an important construction equipment for underground engineering, plays a significant role in underground space development. The construction of domestic subways is as vigorous as possible, the international infrastructure is interconnected and communicated, and the market potential of the world shield tunneling machine is rapidly released. At present, a shield machine becomes indispensable special equipment for large-scale tunnel excavation, and is widely used for tunnel engineering of subways, railways, highways, municipal pipe networks, river-crossing tunnels, hydropower and the like.
The main driving reducer of the cutter head is one of core components of the shield machine, is mainly imported at home at present, is expensive, and particularly, the main driving planetary reducer with the gear shifting mechanism for the novel shield machine/TBM complete equipment is all imported. Therefore, domestic development of the main drive planetary speed reducer is urgently needed in China.
Disclosure of Invention
The invention aims to provide a hydraulic gear shifting main drive planetary reducer to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a hydraulic gear shifting main drive planetary reducer which comprises a motor, a gear shifting system and a planetary reduction system, wherein the gear shifting system comprises a gear shifting mechanism and a planetary reduction mechanism; the motor includes an output shaft.
The gear shifting system comprises a gear shifting spline shaft fixedly connected with the output shaft, a gear shifting mechanism is sleeved on the gear shifting spline shaft and comprises a primary pinion sleeved on the gear shifting spline shaft, a gear shifting gear set is arranged on one side of the primary pinion, and the gear shifting gear set is connected with the spline shaft in a shaft coupling mode; one end of the spline shaft is connected with the gear shifting spline shaft through a bearing, slide rails are arranged on one adjacent sides of the spline shaft and the gear shifting spline shaft, and bulges matched with the slide rails are arranged on the inner side of the primary pinion; the gear shifting mechanism is connected with a hydraulic cylinder.
The planetary reduction system comprises a plurality of stages of planetary reduction mechanisms, each planetary reduction mechanism comprises a sun wheel, a plurality of groups of planetary wheels are arranged on the outer side of the sun wheel, inner gear rings are arranged on the outer sides of the plurality of groups of planetary wheels, planetary wheel bearings are arranged on the inner sides of the planetary wheels, the planetary wheel bearings are connected with planetary shafts in a shaft coupling mode, planetary carriers are arranged on the outer sides of the plurality of groups of planetary shafts, and the plurality of planetary shafts are fixedly arranged in the circumferential direction of the planetary carriers; the first stage planetary reduction gears's sun gear and integral key shaft fixed connection, the planet carrier and adjacent next stage planetary reduction gears's sun gear fixed connection, the sun gear coupling among the adjacent two-stage planetary reduction gears, the last stage planetary reduction gears's sun gear and planet carrier coupling.
Preferably, gear shifting gear train includes the one-level gear wheel with one-level pinion engaged with, and one-level gear wheel fixedly connected with optical axis, be fixed with the second grade pinion on the optical axis, the second grade pinion engagement has the second grade gear wheel, second grade gear wheel and integral key shaft fixed connection.
Preferably, the planetary reduction system includes a two-stage planetary reduction mechanism.
Preferably, three groups of planet wheels are arranged on the outer side of the sun wheel.
Preferably, one side of the spline shaft, which is far away from the gear shifting system, is connected with a spline housing, the spline housing is detachably connected with the sun gear, the outer side of the spline housing is connected with a third bearing seat through a bearing, and a cooling water cavity is formed in the third bearing seat.
Preferably, the planet speed reduction system outside is provided with the second box, the second box passes through the bearing with the planet carrier among the last level of planetary reduction mechanism and is connected, be provided with two sets of oil sealss between the planet carrier among second box and the last level of planetary reduction mechanism, it is two sets of the oil seal sets up back to back.
Preferably, two adjacent groups of sun gears are connected through a bearing, and the sun gear and the planet carrier of the planetary speed reducing mechanism at the last stage are connected through a bearing.
Preferably, a first box body is arranged on the outer side of the gear shifting system, the first box body is fixedly connected with a second box body, and the second box body is fixedly connected with the inner gear ring.
Preferably, a sight hole cover is fixedly arranged on the first box body.
The invention discloses the following technical effects:
the invention has reasonable design, compact structure, convenient, safe and reliable remote gear shifting operation; different torques are transmitted through the combined transmission of the parallel stage, the gear shifting mechanism and the multi-stage planetary reducing mechanism, so that the application range of the equipment is expanded; the transmission reliability and efficiency of the planetary reducer are improved, so that the loading capacity, reliability and construction efficiency of the shield tunneling machine are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the construction of a reducer according to the present invention;
FIG. 2 is a schematic view of another embodiment of the retarder according to the present invention;
fig. 3 is a front view of the present invention.
The hydraulic transmission device comprises a motor 1, an output shaft 2, a gear shifting spline shaft 3, a gear shifting mechanism 4, a spline shaft 5, a hydraulic cylinder 6, a sun gear 7, a planet gear 8, an inner gear ring 9, a planet gear bearing 10, a planet shaft 11, a planet carrier 12, a first-level pinion 13, a first-level bull gear 14, an optical axis 15, a second-level pinion 16, a second-level bull gear 17, a spline housing 18, a third bearing seat 19, a cooling water cavity 20, a second box 21, an oil seal 22, a first box 23 and a sight hole cover 24.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-3, the invention provides a hydraulic gear shifting main drive planetary reducer, which comprises a motor 1, a gear shifting system and a planetary reduction system; the motor 1 comprises an output shaft 2.
The gear shifting system comprises a gear shifting spline shaft 3 fixedly connected with an output shaft 2, the output shaft 2 and the gear shifting spline shaft 3 are fixedly connected through an input spline sleeve, the input spline sleeve is connected with a first bearing seat through a bearing, and a first box body 23 and a first bearing seat are fixedly connected with the first box body and arranged on the outer side of the gear shifting system. A gear shifting mechanism 4 is sleeved on the gear shifting spline shaft 3, the gear shifting mechanism 4 comprises a primary pinion 13 sleeved on the gear shifting spline shaft 3, a gear shifting gear set is arranged on one side of the primary pinion 13, and the gear shifting gear set is connected with a spline shaft 5 in a shaft coupling mode; one end of the spline shaft 5 is connected with the gear shifting spline shaft 3 through a bearing, slide rails are arranged on one adjacent sides of the spline shaft 5 and the gear shifting spline shaft 3, and bulges matched with the slide rails are arranged on the inner side of the primary pinion; the gear shifting mechanism 4 is connected with a hydraulic cylinder 6; the gear shifting gear set comprises a first-stage large gear 14 meshed with a first-stage small gear 13, the first-stage large gear 14 is fixedly connected with an optical axis 15, a second-stage small gear 16 is fixed on the optical axis 15, a second-stage large gear 17 is meshed with the second-stage small gear 16, and the second-stage large gear 17 is fixedly connected with the spline shaft 5. The spline shaft 5 is connected with a second bearing seat through a bearing, the second bearing seat is fixedly connected with the first box body, and an end cover is fixedly arranged on the second bearing seat.
The planetary reduction system comprises a plurality of stages of planetary reduction mechanisms, each planetary reduction mechanism comprises a sun wheel 7, a plurality of groups of planetary wheels 8 are arranged on the outer side of each sun wheel 7, inner gear rings 9 are arranged on the outer sides of the plurality of groups of planetary wheels 8, planetary wheel bearings 10 are arranged on the inner sides of the planetary wheels 8, the planetary wheel bearings 10 are connected with planetary shafts 11 in a shaft coupling mode, planetary carriers 12 are arranged on the outer sides of the plurality of groups of planetary shafts 11, and the plurality of planetary shafts 11 are fixedly arranged in the circumferential direction of the planetary carriers 12; the sun gear 7 of the first-stage planetary reduction mechanism is fixedly connected with the spline shaft 5, the planet carrier 12 is fixedly connected with the sun gear 7 of the next-stage planetary reduction mechanism, the sun gear 7 of the two adjacent stages of planetary reduction mechanisms is in shaft connection, and the sun gear 7 of the last-stage planetary reduction mechanism is in shaft connection with the planet carrier 12.
In a further optimization scheme, the planetary reduction system comprises a two-stage planetary reduction mechanism.
In a further optimized scheme, three groups of planet wheels 8 are arranged on the outer side of the sun wheel 7.
Further optimize the scheme, one side that shift system was kept away from to integral key shaft 5 is connected with spline housing 18, and spline housing 18 can be dismantled with sun gear 7 and be connected, and spline housing 18's the outside is connected with third bearing frame 19 through the bearing, has seted up cooling water cavity 20 in the third bearing frame 19, through regulation and control cooling water circulation system, cools down the temperature of reduction gear.
In a further optimized scheme, a second box body 21 is arranged on the outer side of the planetary reduction system, the second box body 21 is connected with a planet carrier 12 in the last-stage planetary reduction mechanism through a bearing, two groups of oil seals 22 are arranged between the second box body 21 and the planet carrier 12 in the last-stage planetary reduction mechanism, and the two groups of oil seals 22 are arranged back to back.
In a further optimized scheme, two adjacent groups of sun gears 7 are connected through bearings, and the sun gear 7 and the planet carrier 12 of the last-stage planetary reduction mechanism are connected through the bearings.
According to the further optimized scheme, a first box body 23 is arranged on the outer side of the gear shifting system, the first box body 23 is fixedly connected with a second box body 21, and the second box body 21 is fixedly connected with the inner gear ring 9.
In a further optimized scheme, the first box body 23 is fixedly provided with a sight hole cover 24, so that the running condition of internal components of the speed reducer during working can be better checked.
The working process is as follows:
as shown in fig. 1, the device is in a non-shifting state, the first-stage pinion 13 fixes the shifting spline shaft 3 and the spline shaft 5, the power of the output shaft 2 is directly transmitted to the spline shaft 5 through the shifting spline shaft 3, and is decelerated to reach a desired rotation speed and torque through the two-stage planetary reduction mechanism and transmitted out through the planet carrier of the last stage.
As shown in fig. 2, the device is in a gear shifting state, the gear shifting spline shaft 3 and the spline shaft 5 are connected through a bearing, the first-stage pinion 13 and the first-stage bull gear 14 are meshed, the power of the output shaft 2 is transmitted to the spline shaft 5 through the gear shifting spline shaft 3, the first-stage pinion 13 and the gear shifting gear set, the speed is reduced through the two-stage planetary reduction mechanism to reach a desired rotating speed and torque, and the rotating speed and the torque are transmitted out through the planet carrier of the last stage.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The utility model provides a hydraulic pressure main drive planetary reducer that shifts which characterized in that: the gear shifting device comprises a motor (1), a gear shifting system and a planetary reduction system; the motor (1) comprises an output shaft (2);
the gear shifting system comprises a gear shifting spline shaft (3) fixedly connected with an output shaft (2), a gear shifting mechanism (4) is sleeved on the gear shifting spline shaft (3), the gear shifting mechanism (4) comprises a primary pinion (13) sleeved on the gear shifting spline shaft (3), a gear shifting gear set is arranged on one side of the primary pinion (13), and the gear shifting gear set is connected with a spline shaft (5) in a shaft coupling mode; one end of the spline shaft (5) is connected with the gear shifting spline shaft (3) through a bearing, slide rails are arranged on one adjacent sides of the spline shaft (5) and the gear shifting spline shaft (3), and bulges matched with the slide rails are arranged on the inner side of the primary pinion; the gear shifting mechanism (4) is connected with a hydraulic cylinder (6);
the planetary reduction system comprises a plurality of stages of planetary reduction mechanisms, each planetary reduction mechanism comprises a sun wheel (7), a plurality of groups of planetary wheels (8) are arranged on the outer side of the sun wheel (7), an inner gear ring (9) is arranged on the outer side of each group of planetary wheels (8), a planetary wheel bearing (10) is arranged on the inner side of each planetary wheel (8), each planetary wheel bearing (10) is connected with a planetary shaft (11) in a shaft mode, a planetary carrier (12) is arranged on the outer side of each group of planetary shafts (11), and a plurality of planetary shafts (11) are fixedly arranged in the circumferential direction of the planetary carrier (12); the first stage sun gear (7) and integral key shaft (5) fixed connection of planetary reduction mechanism, planet carrier (12) and adjacent next stage planetary reduction mechanism's sun gear (7) fixed connection, sun gear (7) the coupling among the adjacent two-stage planetary reduction mechanism, last one stage planetary reduction mechanism's sun gear (7) and planet carrier (12) the coupling.
2. A hydraulically shifted main drive planetary reducer as claimed in claim 1, wherein: the gear shifting gear set comprises a first-level large gear (14) meshed with a first-level small gear (13), a first-level large gear (14) and an optical axis (15) are fixedly connected with each other, a second-level small gear (16) is fixed on the optical axis (15), a second-level large gear (17) is meshed with the second-level small gear (16), and the second-level large gear (17) is fixedly connected with the spline shaft (5).
3. A hydraulically shifted main drive planetary reducer as claimed in claim 1, wherein: the planetary reduction system includes a two-stage planetary reduction mechanism.
4. A hydraulically shifted main drive planetary reducer as claimed in claim 1, wherein: three groups of planet wheels (8) are arranged on the outer side of the sun wheel (7).
5. A hydraulically shifted main drive planetary reducer as claimed in claim 1, wherein: one side of the spline shaft (5) far away from the gear shifting system is connected with a spline housing (18), the spline housing (18) is detachably connected with the sun wheel (7), the outer side of the spline housing (18) is connected with a third bearing seat (19) through a bearing, and a cooling water cavity (20) is formed in the third bearing seat (19).
6. A hydraulically shifted main drive planetary reducer as claimed in claim 1, wherein: the planet speed reducing system outside is provided with second box (21), planet carrier (12) in second box (21) and the last level planetary reduction mechanism pass through the bearing and are connected, be provided with two sets of oil blanket (22) between planet carrier (12) in second box (21) and the last level planetary reduction mechanism, it is two sets of oil blanket (22) back to back setting.
7. A hydraulically shifted main drive planetary reducer as claimed in claim 1, wherein: two adjacent groups of sun gears (7) are connected through a bearing, and the sun gear (7) and the planet carrier (12) of the last stage of planetary reduction mechanism are connected through a bearing.
8. The hydraulically shifted main drive planetary reducer of claim 6, wherein: a first box body (23) is arranged on the outer side of the gear shifting system, the first box body (23) is fixedly connected with a second box body (21), and the second box body (21) is fixedly connected with an inner gear ring (9).
9. A hydraulically shifted main drive planetary reducer as set forth in claim 8, wherein: and a sight hole cover (24) is fixedly arranged on the first box body (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010878209.3A CN111927927B (en) | 2020-08-27 | 2020-08-27 | Hydraulic gear shifting main driving planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010878209.3A CN111927927B (en) | 2020-08-27 | 2020-08-27 | Hydraulic gear shifting main driving planetary reducer |
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| Publication Number | Publication Date |
|---|---|
| CN111927927A true CN111927927A (en) | 2020-11-13 |
| CN111927927B CN111927927B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010878209.3A Active CN111927927B (en) | 2020-08-27 | 2020-08-27 | Hydraulic gear shifting main driving planetary reducer |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110012738A (en) * | 2009-07-31 | 2011-02-09 | 변동환 | Planetary gear transmission and vehicle using same |
| US20140187377A1 (en) * | 2012-12-28 | 2014-07-03 | Hyundai Wia Corporation | Range shift system for transfer case |
| WO2014187631A1 (en) * | 2013-05-21 | 2014-11-27 | Zf Friedrichshafen Ag | Planetary gearset that can be shifted |
| KR101648329B1 (en) * | 2016-05-20 | 2016-08-12 | 이연화 | Planetary Gear Transmission with Two Reduction Ratio at First Reduction Part |
| DE102017212639A1 (en) * | 2016-08-26 | 2018-03-01 | Deere & Company | PTO arrangement for a work vehicle |
| US20180245641A1 (en) * | 2017-02-26 | 2018-08-30 | Toyota Jidosha Kabushiki Kaisha | Vehicular power transmitting system |
| CN108468759A (en) * | 2018-05-31 | 2018-08-31 | 郑州机械研究所有限公司 | A kind of petroleum drilling machine winch shift-variable formula planetary gear reduction box |
| US20190054818A1 (en) * | 2017-08-18 | 2019-02-21 | Arvinmeritor Technology, Llc | Axle Assembly Having an Electric Motor Module and a Shift Mechanism |
| KR101994158B1 (en) * | 2019-01-29 | 2019-06-28 | 강승일 | Planetary Reduction Gear Transmission Having Dog Clutch |
| JP2019157923A (en) * | 2018-03-08 | 2019-09-19 | 本田技研工業株式会社 | Forward/reverse switching mechanism of continuously variable transmission |
| CN212389709U (en) * | 2020-08-27 | 2021-01-22 | 郑州机械研究所有限公司 | Hydraulic gear shifting main drive planetary reducer |
-
2020
- 2020-08-27 CN CN202010878209.3A patent/CN111927927B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110012738A (en) * | 2009-07-31 | 2011-02-09 | 변동환 | Planetary gear transmission and vehicle using same |
| US20140187377A1 (en) * | 2012-12-28 | 2014-07-03 | Hyundai Wia Corporation | Range shift system for transfer case |
| WO2014187631A1 (en) * | 2013-05-21 | 2014-11-27 | Zf Friedrichshafen Ag | Planetary gearset that can be shifted |
| KR101648329B1 (en) * | 2016-05-20 | 2016-08-12 | 이연화 | Planetary Gear Transmission with Two Reduction Ratio at First Reduction Part |
| DE102017212639A1 (en) * | 2016-08-26 | 2018-03-01 | Deere & Company | PTO arrangement for a work vehicle |
| US20180245641A1 (en) * | 2017-02-26 | 2018-08-30 | Toyota Jidosha Kabushiki Kaisha | Vehicular power transmitting system |
| US20190054818A1 (en) * | 2017-08-18 | 2019-02-21 | Arvinmeritor Technology, Llc | Axle Assembly Having an Electric Motor Module and a Shift Mechanism |
| JP2019157923A (en) * | 2018-03-08 | 2019-09-19 | 本田技研工業株式会社 | Forward/reverse switching mechanism of continuously variable transmission |
| CN108468759A (en) * | 2018-05-31 | 2018-08-31 | 郑州机械研究所有限公司 | A kind of petroleum drilling machine winch shift-variable formula planetary gear reduction box |
| KR101994158B1 (en) * | 2019-01-29 | 2019-06-28 | 강승일 | Planetary Reduction Gear Transmission Having Dog Clutch |
| CN212389709U (en) * | 2020-08-27 | 2021-01-22 | 郑州机械研究所有限公司 | Hydraulic gear shifting main drive planetary reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111927927B (en) | 2024-03-19 |
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