CN110529583B - End face sealing structure of hub reduction gear - Google Patents

End face sealing structure of hub reduction gear Download PDF

Info

Publication number
CN110529583B
CN110529583B CN201910745891.6A CN201910745891A CN110529583B CN 110529583 B CN110529583 B CN 110529583B CN 201910745891 A CN201910745891 A CN 201910745891A CN 110529583 B CN110529583 B CN 110529583B
Authority
CN
China
Prior art keywords
reduction gear
hub reduction
planet
gear
hub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910745891.6A
Other languages
Chinese (zh)
Other versions
CN110529583A (en
Inventor
冯涛
黄超
苗士军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FAW Jiefang Automotive Co Ltd
Original Assignee
FAW Jiefang Automotive Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FAW Jiefang Automotive Co Ltd filed Critical FAW Jiefang Automotive Co Ltd
Priority to CN201910745891.6A priority Critical patent/CN110529583B/en
Publication of CN110529583A publication Critical patent/CN110529583A/en
Application granted granted Critical
Publication of CN110529583B publication Critical patent/CN110529583B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • 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
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16H57/082—Planet carriers
    • 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
    • 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
    • F16H2057/085—Bearings for orbital gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention belongs to the technical field of automobiles, and discloses an end face sealing structure of a hub reduction gear, which comprises a planet carrier assembly, a half shaft, a sun gear, a plug screw and a gear ring, wherein the planet carrier assembly comprises a hub reduction gear shell, a planet carrier, a planet wheel shaft and a planet wheel, the first end of the hub reduction gear shell can be connected with a hub, the middle part of the second end of the hub reduction gear shell forms the plug screw hole, the planet carrier is connected with the second end of the hub reduction gear shell in a sealing manner, the plug screw is connected to the opening of the second end of the hub reduction gear shell in a sealing manner and used for axially limiting the sun gear, the periphery of the plug screw hole is also provided with the planet wheel shaft hole, and an. The invention has the beneficial effects that: the structure replaces the original end cover structure, so that the production cost of the end cover and the processing cost of the hub reduction gear shell are reduced; through the axial limit sun gear on the end face of the screw plug, the original limit structure combining the separation blade, the adjusting gasket and the clamping ring is eliminated, and the cost is further reduced.

Description

End face sealing structure of hub reduction gear
Technical Field
The invention relates to the technical field of automobiles, in particular to an end face sealing structure of a hub reduction gear.
Background
In the wheel reduction drive axle of the domestic automobile, an end cover structure is mostly adopted for sealing a wheel reduction gear, a plurality of bolts are adopted for connecting the end cover to a wheel reduction gear shell, and a combined structure of a separation blade, an adjusting gasket and a clamping ring is adopted for axial limiting of a sun gear.
Patent document 1(CN208138446U) discloses a hub reduction gear, including the reduction gear casing, be located the sun gear in the reduction gear casing, be located the reduction gear casing and with the planetary gear of sun gear meshing, the last shaft hole that has seted up of reduction gear casing, the shaft hole extends to the surface of reduction gear casing, it has the planet wheel axle to have worn to connect in this shaft hole, planetary gear cup joints at this planet wheel epaxially and with planet wheel axle pivot cooperation, the fixed surface of reduction gear casing has an end cover, the end cover closing cap shaft hole is outside, and be provided with the sealing layer that is located the marginal outside in shaft hole between the surface of end cover and reduction gear casing, planet wheel axle is injectd between apron and reduction gear casing.
Patent document 2(CN206017579U) discloses a hub reduction gear assembly, including the end cover, the planet wheel axle, first bearing, the ring gear, the axle housing assembly, keep off the dust hood and brake shoe and assembly thereof, end cover one side is passed through the bolt and is connected with the planet wheel, planet wheel bottom and kingpin are connected, the kingpin bottom is connected with first sun gear, first sun gear bottom is connected with the second sun gear, end cover bottom one side is equipped with the hub reduction gear shell, hub reduction gear shell one side is connected with the ring gear, first sun gear one side is equipped with first bearing, first bearing one side is equipped with wheel hub, the wheel hub top is equipped with the brake drum.
Patent document 3(CN201443580U) discloses a hub small speed ratio reducer, which comprises a gear ring support, a gear ring, a hub reducer casing, a planet carrier, 5 planet wheels, a sun wheel and a half shaft, wherein the gear ring is assembled on the gear ring support to form a gear ring support assembly, the hub reducer casing and the planet carrier are assembled through a connecting bolt and a positioning pin to form a planet carrier assembly, and the planet carrier assembly is assembled on the gear ring support assembly; 5 planet wheels are assembled on the planet carrier assembly through planet wheel shafts, a sun wheel is assembled in the middle of the planet wheels, and a half shaft is assembled on the sun wheel through a spline.
Above-mentioned technical scheme is owing to all need produce end cover, separation blade, adjusting shim and snap ring, still need the screw hole of processing hub reduction gear shell, and manufacturing cost is high.
Disclosure of Invention
The invention aims to provide an end face sealing structure of a hub reduction gear, which aims to solve the problem that the existing end cover structure for sealing the hub reduction gear is high in production cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a hub reduction gear end face seal structure, includes planet carrier assembly, semi-axis, sun gear, plug screw and ring gear, the planet carrier assembly includes hub reduction gear shell, planet carrier, planet wheel axle and planet wheel, hub reduction gear shell first end can be connected with wheel hub, the second end middle part of hub reduction gear shell forms the plug screw hole, the planet carrier sets up inside the hub reduction gear shell and with hub reduction gear shell second end sealing connection, plug screw sealing connection is in the second end opening part of hub reduction gear shell, and be used for right the sun gear carries out axial spacing, plug screw hole periphery still is equipped with and is used for the planet wheel shaft hole of planet wheel axle one end embedding, the planet wheel axle with it seals to set up O shape ring between the planet wheel shaft hole.
Preferably, the planet carrier is connected with the hub reduction gear shell through bolts, and a sealing gasket is arranged on a joint surface of the bolts and the hub reduction gear shell.
Preferably, the cylindrical gear shaft of the sun gear is meshed with the cylindrical gear shaft of the planet gear.
Preferably, the two ends of the sun gear are provided with a steel wire retainer ring and a retainer ring for axial limiting.
Preferably, the screw plug is in threaded connection with the screw plug hole.
Preferably, the planet wheel gasket is arranged at two ends of the planet wheel.
Preferably, a sun wheel gasket is arranged at one end, far away from the screw plug, of the sun wheel.
Preferably, a plurality of needle bearings are arranged between the planet wheel and the planet wheel shaft.
Preferably, adjacent axially-distributed needle bearings are separated by spacers.
Preferably, the surface of the planet wheel shaft is provided with an annular groove, and the O-shaped ring is installed in the annular groove.
The invention has the beneficial effects that: the sealing structure of the end face of the hub reduction gear adopts an O-shaped ring on a planet wheel shaft and is used for sealing the installation position of the planet wheel shaft; a sealing gasket structure is adopted between the bolt and the hub reduction gear shell and is used for sealing the installation position of the bolt; the screw plug is connected with the hub reduction gear shell and used for sealing the hub reduction gear shell. Through the improvement of the structure, the original end cover structure is cancelled, and the production cost of the end cover and the processing cost of the hub reduction gear shell are reduced; through the axial limit sun gear on the end face of the screw plug, the original combined limit structure formed by the separation blade, the adjusting gasket and the clamping ring is eliminated, and the cost is further reduced.
Drawings
FIG. 1 is an assembled partial view of a wheel reduction end face seal configuration of an embodiment of the present invention;
FIG. 2 is a view of a planet carrier assembly of the wheel reduction end face seal structure of the embodiment of the invention;
FIG. 3 is a plug screw view of an end face seal structure of a hub reduction gear according to an embodiment of the present invention;
FIG. 4 is a wheel reduction housing view of the wheel reduction end face seal structure of the embodiment of the invention;
FIG. 5 is a schematic view of a sun gear shim of the wheel reduction gear end face seal structure of the embodiment of the invention;
fig. 6 is a schematic diagram of a planet wheel gasket of the end face sealing structure of the hub reduction gear in the embodiment of the invention.
In the figure:
1. a planet carrier; 2. a bolt; 3. a hub reduction gear case; 4. sealing gaskets; 5. a sun gear; 6. a plug screw; 7. an O-ring; 8. a planetary wheel shaft; 9. a planet wheel spacer; 10. a sun gear pad; 11. a needle bearing; 12. a spacer sleeve; 13. a planet carrier assembly; 14. a steel wire retainer ring; 15. a half shaft; 16. a snap ring; 17. a planet wheel; 18. a ring gear; 19. plugging a screw hole; 20. a bolt mounting hole; 21. the planet wheel shaft hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present invention provides a wheel-side reducer end face sealing structure, which comprises a planet carrier assembly 13, a half shaft 15, a sun gear 5, a plug screw 6 and a gear ring 8. The planet carrier assembly 13 comprises a hub reduction gear shell 3, a planet carrier 1 and planet wheels 17, the first end of the hub reduction gear shell 3 can be connected with a hub, a plug hole 19 is formed in the middle of the second end of the hub reduction gear shell 3, the plug hole 6 is in threaded connection with the plug hole 19, the half shaft 15 is arranged in the middle of the planet carrier 1, 5 planet wheel shafts 8 surrounding the half shaft 15 are further arranged inside the planet carrier 1, the sun wheel 5 and the planet wheels 17 are respectively arranged on the half shaft 15 and the planet wheel shafts 8, the spline holes of the sun wheel 5 are in fit connection with spline shafts of the half shaft 15, and cylindrical tooth shafts of five planet wheels 17 in the planet carrier assembly 13 are meshed with cylindrical tooth holes of the gear ring 18.
Further, in order to axially limit the sun gear 5, on one hand, two ends of the sun gear 5 are provided with a steel wire retainer ring 14 and a retainer ring 16; on the other hand, the inner end face of the screw plug 6 protrudes inward to be aligned with one end face of the sun gear 5 with a small clearance.
As shown in fig. 2, the spur gear shaft of the sun gear 5 meshes with the spur gear shaft of the planetary gear 17, and one end of the planetary gear shaft 8 is fitted into a planetary gear shaft hole 21 formed in the hub reduction gear case 3.
In order to ensure better sealing performance at the planet shaft hole 21, two annular grooves are formed in the surface of the planet shaft 8, and the two annular grooves are provided with O-shaped rings 7 for sealing.
In order to ensure that the joint of the planet carrier 1 and the hub reduction gear shell 3 has good sealing performance, the planet carrier 1 and the hub reduction gear shell 3 are connected by adopting bolts 2, and a sealing gasket 4 is arranged on the joint surface of the bolts 2 and the hub reduction gear shell 3.
Furthermore, planet wheel 17 both ends are equipped with planet wheel gasket 9, and planet wheel gasket 9's structure is as shown in fig. 6, and planet wheel gasket 9 overlaps on planet wheel axle 8, and the terminal surface of planet wheel gasket 9 and the laminating of the terminal surface of planet wheel 17. The right end of the sun gear 5 is provided with a sun gear gasket 10, the structure of the sun gear gasket 10 is shown in fig. 5, the sun gear gasket 10 is sleeved on the half shaft 15 and is installed in the stepped hole of the planet carrier 1, and the end face of the sun gear gasket 10 is attached to the end face of the sun gear 5. The arrangement of the planet wheel pads 9 and the sun wheel pads 10 is used to compensate for irregularities of the machined surface.
Referring to fig. 2, a plurality of needle bearings 11 are further arranged between the planet wheel 17 and the planet wheel shaft 8, the needle bearings 11 are distributed along the axial direction, and adjacent needle bearings 11 are separated by spacers 12. By using the needle roller bearing 11, on the one hand, for carrying radial loads and, on the other hand, for fixing the planet wheels 17 such that they can only rotate, axial and radial movements thereof are controlled.
As shown in fig. 3, the screw plug 6 is connected with the hub reduction gear case 3 in a matching manner by adopting a threaded structure, the outer side of the screw plug 6 adopts an inner hexagonal structure, the screw plug is convenient to be assembled and disassembled by matching with an assembling tool, and the end surface of the inner side of the screw plug 6 adopts a blind hole structure and is used for enveloping the half shaft 15.
As shown in fig. 4, a plug hole 19 is formed in the middle of the end surface of the hub reduction gear case 3, and five pinion shaft holes 21 that engage with the pinion shaft 8 and five bolt mounting holes 20 that engage with the bolts 2 are provided around the plug hole 19 on the outer periphery of the plug hole 19. The planetary shaft holes 21 and the bolt mounting holes 20 are uniformly distributed on the end surface of the hub reduction gear case 3 in the circumferential direction.
In summary, the sealing structure of the end face of the hub reduction gear adopts the O-shaped ring 7 on the planet wheel shaft 8 for sealing the position of the planet wheel shaft 8; a sealing gasket 4 is adopted between the bolt 2 and the hub reduction gear shell 3 and is used for sealing the installation position of the bolt 2; the screw plug 6 is connected with the hub reduction gear shell 3 and used for sealing the hub reduction gear shell 3. Through the improvement of the structure, the original end cover structure is cancelled, and the production cost of the end cover and the processing cost of the hub reduction gear shell 3 are reduced; through the sun gear 5 axially limited by the end face of the screw plug 6, the original combined limiting structure formed by the separation blade, the adjusting gasket and the clamping ring is eliminated, and the cost is further reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. The end face sealing structure of the hub reduction gear is characterized by comprising a planet carrier assembly (13), a half shaft (15), a sun gear (5), a plug screw (6) and a gear ring (18), wherein the planet carrier assembly (13) comprises a hub reduction gear shell (3), a planet carrier (1), a planet gear shaft (8) and a planet gear (17), the first end of the hub reduction gear shell (3) can be connected with a hub, a plug screw hole (19) is formed in the middle of the second end of the hub reduction gear shell (3), the planet carrier (1) is arranged inside the hub reduction gear shell (3) and is in sealing connection with the second end of the hub reduction gear shell (3), the plug screw (6) is in sealing connection with the opening of the second end of the hub reduction gear shell (3) and is used for axially limiting the sun gear (5), a planet gear shaft hole (21) for embedding one end of the planet gear shaft (8) is further arranged on the periphery of the plug screw hole (19), an O-shaped ring (7) is arranged between the planet wheel shaft (8) and the planet wheel shaft hole (21) for sealing;
the planet carrier (1) is connected with the hub reduction gear shell (3) through bolts (2), and a sealing gasket (4) is arranged on the joint surface of the bolts (2) and the hub reduction gear shell (3).
2. A hub reduction gear end face seal according to claim 1, characterized in that the cylindrical pinion of the sun gear (5) meshes with the cylindrical pinion of the planet gear (17).
3. The end face sealing structure of the hub reduction gear according to claim 1, characterized in that both ends of the sun gear (5) are provided with a steel wire retainer ring (14) and a snap ring (16) for axial limiting.
4. The end face sealing structure of the hub reduction gear according to claim 1, characterized in that a threaded connection is adopted between the plug screw (6) and the plug screw hole (19).
5. A hub reduction gear end face seal structure according to claim 1, characterized in that both ends of the planet (17) are provided with planet gaskets (9).
6. A hub reduction gear end face seal according to claim 1, characterized in that a sun gear gasket (10) is provided on the sun gear (5) at the end far from the plug screw (6).
7. A hub reduction gear end face seal according to claim 1, characterised in that a plurality of needle bearings (11) are provided between the planet wheels (17) and the planet wheel shaft (8).
8. A hub reduction gear end face seal according to claim 7, characterized in that adjacent axially-distributed needle bearings (11) are separated by spacers (12).
9. A hub reduction gear end face seal according to claim 1, characterized in that the surface of the planet wheel shaft (8) is provided with an annular groove in which the O-ring (7) is mounted.
CN201910745891.6A 2019-08-13 2019-08-13 End face sealing structure of hub reduction gear Active CN110529583B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910745891.6A CN110529583B (en) 2019-08-13 2019-08-13 End face sealing structure of hub reduction gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910745891.6A CN110529583B (en) 2019-08-13 2019-08-13 End face sealing structure of hub reduction gear

Publications (2)

Publication Number Publication Date
CN110529583A CN110529583A (en) 2019-12-03
CN110529583B true CN110529583B (en) 2021-01-26

Family

ID=68663130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910745891.6A Active CN110529583B (en) 2019-08-13 2019-08-13 End face sealing structure of hub reduction gear

Country Status (1)

Country Link
CN (1) CN110529583B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202228645U (en) * 2011-08-17 2012-05-23 湖南中联重科车桥有限公司 Hub reduction gear frame, hub reduction gear and vehicle
CN202790348U (en) * 2012-09-26 2013-03-13 湖南中联重科车桥有限公司 Hub reduction gear and vehicle
CN202790347U (en) * 2012-09-26 2013-03-13 湖南中联重科车桥有限公司 Hub reduction gear and vehicle
CN203442092U (en) * 2013-09-10 2014-02-19 湖南中联重科车桥有限公司 Hub reduction gear and planet gear shaft limit structure and vehicle thereof
CN104595424B (en) * 2014-12-25 2017-10-20 东风汽车公司 Planetary gear side reducer assembly
CN106671701B (en) * 2017-02-15 2023-07-04 山东福安达重汽零部件制造有限公司 Steering drive axle before wheel hub speed reduction
CN208107122U (en) * 2018-04-23 2018-11-16 江西海峰重工科技有限责任公司 Hub reduction gear
CN208565446U (en) * 2018-05-31 2019-03-01 一汽解放汽车有限公司 A kind of planetary gear hub reduction gear

Also Published As

Publication number Publication date
CN110529583A (en) 2019-12-03

Similar Documents

Publication Publication Date Title
CN105240532B (en) A kind of oil enveloping structure
CN111845333A (en) Hub reduction assembly
CN110529583B (en) End face sealing structure of hub reduction gear
CN201627926U (en) Heavy truck bridge hub oil seal
CN110529560B (en) Hub reduction gear structure
CN209370381U (en) A kind of planetary gear train cellular construction assembly of hub reduction gear
CN205371641U (en) Rotary seal structure
CN109737186B (en) Electronic equation motorcycle race wheel limit planetary gear decelerator
CN110671472A (en) Hub reduction gear and assembly method thereof
CN214727946U (en) Wheel rim locking structure
CN213685134U (en) Engineering vehicle wheel side speed reducer and mining dump truck
CN211202874U (en) Automobile semi-axle dustproof structure
CN113187802A (en) Main shaft structure
CN209179091U (en) A kind of pivoting support component and land leveller
CN202371003U (en) Drawn cup needle roller bearing
CN202579643U (en) Rolling bearing
CN220956809U (en) Long-service-life muddy water-proof hub oil seal with V-shaped ring
CN202251951U (en) Sealing structure of floating seal cover
CN201901173U (en) Novel transition arm
CN202228681U (en) Combined oil seal
CN206918094U (en) A kind of gear-box and bearing sealing device
CN206543998U (en) A kind of new automobile rear axle hub bearing assembling structure
CN206338237U (en) A kind of anti-dry grinding auto pump water seal
CN220302715U (en) Planet carrier and hub reduction gear
CN210093010U (en) Sealing structure suitable for hub motor of electric vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant