CN210739271U - Forced lubrication single-planet-row gear mechanism - Google Patents
Forced lubrication single-planet-row gear mechanism Download PDFInfo
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- CN210739271U CN210739271U CN201921215664.4U CN201921215664U CN210739271U CN 210739271 U CN210739271 U CN 210739271U CN 201921215664 U CN201921215664 U CN 201921215664U CN 210739271 U CN210739271 U CN 210739271U
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- planet
- shaft
- planet carrier
- gear
- input shaft
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Abstract
The utility model relates to a force-feed lubrication's single planet row gear mechanism, which comprises a housin, the input shaft and locate the sun gear in the casing, the planet carrier, the ring gear, the planet wheel, output gear, the motor shaft, oil pump drive shaft and planet axle, the input shaft is used for transmitting the power of engine for the planet carrier, the sun gear is used for transmitting the power of motor shaft for single planet row gear, the planet carrier is used for transmitting the power of mechanism for output gear, the ring gear is used for transmitting the power of input shaft for single planet row gear mechanism, output gear is used for external output power, the motor shaft is used for input motor's power, the oil pump drive shaft is used for driving mechanical pump, and as main lubricating oil passageway, the planet axle is installed on the planet carrier, the one end and the input shaft of oil pump drive. Compared with the prior art, the utility model has the advantages of the reliable and stable structure is energy-conserving, reduces to lubricating oil demand.
Description
Technical Field
The utility model belongs to the technical field of the motor transmission and specifically relates to a force-feed lubrication's single planet row gear mechanism is related to.
Background
Because the planetary gear transmission mechanism has compact structure and higher power density, the planetary gear transmission mechanism is commonly used for transmission mechanisms of various automobile gearboxes. The stress condition of the parts of the planet row, especially the parts of gears, bearings and the like is severe, and lubricating oil is generally adopted to lubricate and cool the parts. Therefore, a simple, reliable and energy-saving lubricating and cooling mode of the planet row is an important research direction of the planetary gear transmission.
The chinese utility model patent application with application number CN 108237893, hybrid vehicle's lubricating structure utilize to stir the oil mode and lubricate, cool off gearbox gear, nevertheless because the planet row is relative confined structure, to the lubrication and the cooling of the inside spare part of planet row, the lubrication cooling mode of this patent is unreliable. In addition, the design requirement of the shell is high, multiple tests need to be repeatedly carried out in the development stage, and the development cost is high. The oil stirring lubrication has large demand on lubricating oil, and is often accompanied by large oil stirring loss, and the energy saving performance is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a forced lubrication's single planet row gear mechanism in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a forced lubrication single planet row gear mechanism comprises a shell, an input shaft penetrating through the shell, and a sun gear, a planet carrier, an inner gear ring, a planet gear, an output gear, a motor shaft, an oil pump driving shaft and a planet shaft which are arranged in the shell, wherein the input shaft is connected with an engine, the input shaft is connected with the shell, the inner gear ring surrounds the outer parts of the planet gear and the planet carrier which are arranged on two sides of the input shaft and is mutually fixed with the input shaft in the axial direction, the planet carrier is mutually connected with the input shaft through a sliding bearing and a fourth thrust bearing, the planet carrier is connected with the sun gear through the first thrust bearing, the sun gear is connected with the shell, the input shaft is mutually connected with the motor shaft through the third needle bearing, the motor shaft is connected with the sun gear, the planet carrier is connected with the output gear, and the output gear is connected with, the planet shaft is arranged on the planet carrier, the sun wheel is meshed with the planet wheel, the planet wheel is meshed with the inner gear ring, the planet wheel is supported on the planet shaft, the planet shaft and the planet carrier are fixed with each other in the axial direction, one end of the oil pump driving shaft is connected with the input shaft, the other end of the oil pump driving shaft is connected with the mechanical pump, and oil ducts are arranged on the input shaft, the sun wheel, the planet carrier, the planet shaft and the oil pump driving shaft.
Preferably, the output gear comprises a left support and a right support, the left support and the right support are fixed to each other through bolts, the planet carrier comprises a left planet carrier and a right planet carrier, and the left planet carrier and the right planet carrier are fixed to each other through welding.
Preferably, the input shaft is connected with the housing through a first needle bearing and a second thrust bearing, and the input shaft and the inner gear ring are fixed with each other in the axial direction through a snap ring.
Preferably, the planet carrier is connected with the output gear through a spline, and the planet carrier is connected with the output gear through a cylindrical surface.
Preferably, the sun gear is connected with the housing through a third thrust bearing, and the sun gear and the motor shaft are fixed with each other through a spline.
Preferably, the planet wheel is supported on the planet shaft through two needle roller bearings arranged at the end parts, a spacer bush used for separating the two needle roller bearings is arranged between the two needle roller bearings, and the planet wheel is contacted with the planet carrier through a copper gasket and an iron gasket in sequence.
Preferably, a parking ratchet wheel for realizing a parking function is integrated on the output gear.
Preferably, the output gear is connected with the shell through a left conical bearing and a right conical bearing, a first adjusting gasket is arranged between the left conical bearing and the shell, and a second adjusting gasket used for pre-tightening the second thrust bearing, the fourth thrust bearing, the first thrust bearing and the third thrust bearing is arranged between the second thrust bearing and the shell.
Preferably, an O-shaped ring is arranged between the oil pump driving shaft and the input shaft, a rectangular sealing ring is arranged between the input shaft and the sliding bearing, a first oil plug, a second oil plug and a fourth oil plug are arranged at the tail end of an oil duct on the planet carrier, and a third oil plug is arranged at the tail end of the oil duct of the planet carrier.
Preferably, the planet shaft and the planet carrier are fixed to each other in the axial direction by a positioning pin.
Compared with the prior art, the utility model has the advantages of it is following:
(1) simple structure, reliable and stable: the utility model discloses an input shaft transmits the power of engine to the planet carrier, and the sun gear transmits the power of motor shaft to the utility model discloses single planet row mechanism, the planet carrier will the utility model discloses single planet row mechanism's power transmission is to output gear, and the ring gear is used for transmitting the power of input shaft to single planet row mechanism, and output gear is used for external output power, the power of motor shaft input motor, and oil pump drive shaft drive mechanical pump to as main lubricating oil passageway, the structure is reliable, stable, energy-conserving;
(2) adopting a forced lubrication design: lubricating oil passes through the oil pump driving shaft, the input shaft, the planet carrier, the planet shaft and the sun gear of the utility model and then is conveyed to each gear and each bearing, so that the forced lubrication of each main part of the single planet row gear mechanism can be realized, compared with the prior art, the design requirement on the shell is greatly reduced, a plurality of tests are not needed during the lubrication, the development cost is low, and the demand on the lubricating oil is greatly reduced;
(3) the parking mechanism adopts an integrated design: the utility model discloses an output gear has integrateed the parking ratchet, when realizing the parking function, can further guarantee whole single file star gear mechanism's security.
Drawings
FIG. 1 is a schematic structural diagram of a force-lubricated single planetary gear train in an embodiment;
FIG. 2 is a partial enlarged view of a force lubricated single planetary gear train of an embodiment;
FIG. 3 is a schematic diagram of a forced lubrication scheme of a forced lubrication single planetary gear mechanism in an embodiment;
FIG. 4 is a partial enlarged view of a forced lubrication scheme of a forced lubrication single planetary gear mechanism in an embodiment;
the reference numbers in the figures indicate:
1. an input shaft, 2, a sun gear, 3, a planet carrier, 3a, a left planet carrier, 3b, a right planet carrier, 4, an inner gear ring, 5, a planet gear, 6, an output gear, 6a, a left bracket, 6b, a right bracket, 7, a parking ratchet, 8, a motor shaft, 9, an oil pump driving shaft, 10, a housing, 11, a bolt, 12, a planet shaft, 13, a left cone bearing, 14, a right cone bearing, 15, a first adjusting gasket, 16, a snap ring, 17, a sliding bearing, 18, a first thrust bearing, 19, a second thrust bearing, 20, a first needle bearing, 21, a second needle bearing, 22, a third thrust bearing, 23, a second adjusting gasket, 24, a third bearing, 25, a spacer bush, 26, a positioning pin, 27, a copper gasket, 28, an iron gasket, 29, a rectangular seal ring, 30, a first oil block, 31, a second oil block, 32, a third oil block, 33, an O-shaped ring, 34. a fourth oil plug 35, a fourth thrust bearing A, a cylindrical surface B and a spline.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
The utility model relates to a forced lubrication single planet row gear mechanism, which comprises a shell 10 and an input shaft 1 passing through the shell 10, wherein the shell 10 is a peripheral enveloping member of the whole single planet row gear mechanism; the shell 10 is internally provided with a sun gear 2, a planet carrier 3, an inner gear ring 4, a planet gear 5, an output gear 6, a parking ratchet wheel 7, a motor shaft 8, an oil pump driving shaft 9 and a planet shaft 12.
The input shaft 1 is used for transmitting the power of an engine to the planet carrier 3; the sun gear 2 is used for transmitting the power of the motor shaft 8 to the single planet row mechanism of the utility model; the planet carrier 3 is used for transmitting the power of the single planet row mechanism of the utility model to the output gear 6; the inner gear ring 4 is used for transmitting the power of the input shaft 1 to the single planet row mechanism; the output gear 6 is used for outputting power outwards; the parking ratchet wheel 7 is used for realizing a parking function; the motor shaft 8 is used for inputting the power of the motor EM; the oil pump drive shaft 9 is used to drive the mechanical pump and serves as a main lubrication passage. The planet shaft 12 is mounted on the planet carrier 3. One end of the oil pump driving shaft 9 is connected with the input shaft 1, and the other end is connected with the mechanical pump.
The input shaft 1 is connected with an engine. The input shaft 1 is interconnected with the housing 10 via a first needle bearing 20 and a second thrust bearing 19. The inner gear ring 4 surrounds the planet gears 5 and the planet carrier 3 arranged on two sides of the input shaft 1, and the input shaft 1 and the inner gear ring 4 are mutually fixed in the axial direction through a snap ring 16. The output gear 6 is connected with the housing 10 through a left conical bearing 13 and a right conical bearing 14. The planet carrier 3 is connected with the output gear 6 through a spline B; the planet carrier 3 is connected with the output gear 6 through a cylindrical surface A; the planet carrier 3 is interconnected with the input shaft 1 by means of a slide bearing 17; the planet carrier 3 is interconnected with the input shaft 1 by a fourth thrust bearing 35; the planet carrier 3 is interconnected with the sun gear 2 by a first thrust bearing 18. The sun wheel 2 is interconnected with the housing 10 by a third thrust bearing 22; the sun gear 2 and the motor shaft 8 are fixed with each other through splines.
The input shaft 1 is interconnected with the motor shaft 8 by means of a second needle bearing 21. The parking ratchet wheel 7 is integrated on the output gear 6, and the parking ratchet wheel and the output gear are fixedly connected. The sun wheel 2 is meshed with the planet wheel 5, and the planet wheel 5 is meshed with the inner gear ring 4; the planet wheels 5 are supported on the planet shaft 12 by means of two third needle bearings 24 arranged at the ends.
A spacer 25 is arranged between the two third needle bearings 24 for separating the two sets of third needle bearings 24. The planet wheels 5 are in turn in contact with the planet carrier 3 via copper and iron spacers 27, 28. The planet shaft 12 is axially fixed to the planet carrier 3 by a dowel pin 26.
A first adjusting shim 15 is arranged between the left conical bearing 13 and the housing 10, and the first adjusting shim 15 is used for pre-tightening the left conical bearing 13 and the right conical bearing 14. A second adjusting shim 23 is arranged between the second thrust bearing 19 and the housing 10, and the second adjusting shim 23 is used for pre-tightening the second thrust bearing 19, the fourth thrust bearing 35, the first thrust bearing 18 and the third thrust bearing 22.
The input shaft 1, the sun gear 2, the planet carrier 3, the planet shaft 12 and the oil pump driving shaft 9 are all provided with oil ducts.
An O-ring 33 is provided between the oil pump drive shaft 9 and the input shaft 1. A rectangular sealing ring 29 is arranged between the input shaft 1 and the sliding bearing 17. The tail end of the oil passage on the planet carrier 3 is provided with a first oil plug 30, a second oil plug 31 and a fourth oil plug 34. The end of the oil passage of the planet shaft 12 is provided with a third oil plug 32.
The output gear 6 is composed of a left bracket 6a and a right bracket 6b, and the left bracket 6a and the right bracket 6b are fixed to each other by a bolt 11. The planet carrier 3 is composed of a left planet carrier 3a and a right planet carrier 3b, and the left planet carrier 3a and the right planet carrier 3b are fixed to each other by welding.
During lubrication, lubricating oil sequentially passes through the oil pump driving shaft 9, the input shaft 1, the planet carrier 3, the planet shaft 12 and the sun gear 2 to convey the lubricating oil to each gear and each bearing, and therefore forced lubrication of each main part of the single-planet row gear mechanism is achieved. The utility model discloses an input shaft transmits the power of engine for the planet carrier, and the sun gear transmits the power of motor shaft for the utility model discloses single planet row mechanism, the planet carrier will the utility model discloses single planet row mechanism's power transmission gives output gear, and the ring gear is used for transmitting the power of input shaft for single planet row mechanism, and output gear is used for external output power, the power of motor shaft input motor, oil pump drive shaft drive mechanical pump to as main lubricating oil passageway, the structure is reliable, stable, energy-conserving.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A forced lubrication single planet row gear mechanism is characterized by comprising a shell (10), an input shaft (1) penetrating through the shell (10), a sun gear (2), a planet carrier (3), an inner gear ring (4), planet gears (5), an output gear (6), a motor shaft (8), an oil pump driving shaft (9) and a planet shaft (12) which are arranged in the shell (10), wherein the input shaft (1) is connected with an engine, the input shaft (1) is connected with the shell (10), the inner gear ring (4) surrounds the planet gears (5) and the planet carrier (3) which are arranged on two sides of the input shaft (1) and are fixed with the input shaft (1) in the axial direction, the planet carrier (3) is connected with the input shaft (1) through a sliding bearing (17) and a fourth thrust bearing (35), the planet carrier (3) is connected with the sun gear (2) through a first thrust bearing (18), the sun gear (2) is connected with the shell (10), the input shaft (1) is connected with the motor shaft (8) through the second needle bearing (21), the motor shaft (8) is connected with the sun gear (2), the planet carrier (3) is connected with the output gear (6), the output gear (6) is connected with the shell (10), the planet shaft (12) is installed on the planet carrier (3), the sun gear (2) is meshed with the planet wheel (5), the planet wheel (5) is meshed with the inner gear ring (4), the planet wheel (5) is supported on the planet shaft (12), the planet shaft (12) and the planet carrier (3) are fixed with each other in the axial direction, one end of the driving shaft (9) is connected with the input shaft (1), the other end is connected with the mechanical pump, the input shaft (1), the sun gear (2) and the oil pump, The planet carrier (3), the planet shaft (12) and the oil pump driving shaft (9) are all provided with oil ducts.
2. A force lubricated single planetary gear train according to claim 1, wherein said output gear (6) comprises a left carrier (6a) and a right carrier (6b), said left carrier (6a) and said right carrier (6b) being fixed to each other by bolts (11), said planet carrier (3) comprising a left planet carrier (3a) and a right planet carrier (3b), said left planet carrier (3a) and said right planet carrier (3b) being fixed to each other by welding.
3. A force lubricated single row planetary gear mechanism according to claim 2, wherein said input shaft (1) is interconnected to the housing (10) by means of a first needle bearing (20) and a second thrust bearing (19), said input shaft (1) being axially fixed to the annulus gear (4) by means of a snap ring (16).
4. A force lubricated single row planetary gear mechanism according to claim 2, wherein said planet carrier (3) is interconnected with the output gear (6) by means of splines (B), said planet carrier (3) being interconnected with the output gear (6) by means of cylindrical surfaces (a).
5. A force lubricated single row planetary gear mechanism according to claim 3, wherein said sun gear (2) is connected to the housing (10) by a third thrust bearing (22), said sun gear (2) and the motor shaft (8) being fixed to each other by splines.
6. A force lubricated single planetary gear train according to claim 1, wherein the planet wheels (5) are supported on the planet shaft (12) by means of two third needle bearings (24) arranged at the ends, a spacer (25) is arranged between the two third needle bearings (24) for separating the two third needle bearings (24), and the planet wheels (5) are in contact with the planet carrier (3) through a copper washer (27) and an iron washer (28) in sequence.
7. A force lubricated single planetary gear train according to claim 1, wherein the output gear (6) has integrated therein a parking ratchet (7) for performing a parking function.
8. A force-lubricated single planetary gear mechanism according to claim 5, wherein the output gear (6) is connected with the housing (10) through a left conical bearing (13) and a right conical bearing (14), a first adjusting gasket (15) is arranged between the left conical bearing (13) and the housing (10), and a second adjusting gasket (23) for pre-tightening the second thrust bearing (19), the fourth thrust bearing (35), the first thrust bearing (18) and the third thrust bearing (22) is arranged between the second thrust bearing (19) and the housing (10).
9. A force-lubricated single planetary gear train according to claim 1, wherein an O-ring (33) is arranged between the oil pump driving shaft (9) and the input shaft (1), a rectangular sealing ring (29) is arranged between the input shaft (1) and the sliding bearing (17), a first oil plug (30), a second oil plug (31) and a fourth oil plug (34) are arranged at the tail end of an oil passage on the planet carrier (3), and a third oil plug (32) is arranged at the tail end of an oil passage on the planet shaft (12).
10. A force lubricated single row planetary gear mechanism according to claim 1, wherein said planet shafts (12) are axially fixed to each other with respect to the planet carrier (3) by means of dowel pins (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921215664.4U CN210739271U (en) | 2019-07-30 | 2019-07-30 | Forced lubrication single-planet-row gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921215664.4U CN210739271U (en) | 2019-07-30 | 2019-07-30 | Forced lubrication single-planet-row gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739271U true CN210739271U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921215664.4U Expired - Fee Related CN210739271U (en) | 2019-07-30 | 2019-07-30 | Forced lubrication single-planet-row gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307300A (en) * | 2019-07-30 | 2019-10-08 | 苏州格特钠汽车技术有限公司 | A kind of single planetary row gear mechanism of forced feed lubrication |
| CN111720523A (en) * | 2020-06-15 | 2020-09-29 | 厦门钨业股份有限公司 | Planetary speed change mechanism |
-
2019
- 2019-07-30 CN CN201921215664.4U patent/CN210739271U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307300A (en) * | 2019-07-30 | 2019-10-08 | 苏州格特钠汽车技术有限公司 | A kind of single planetary row gear mechanism of forced feed lubrication |
| CN111720523A (en) * | 2020-06-15 | 2020-09-29 | 厦门钨业股份有限公司 | Planetary speed change mechanism |
| CN111720523B (en) * | 2020-06-15 | 2021-07-09 | 厦门钨业股份有限公司 | Planetary speed change mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20210730 |