CN116292779A - Through-bridge speed reducer assembly - Google Patents

Through-bridge speed reducer assembly Download PDF

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Publication number
CN116292779A
CN116292779A CN202310458700.4A CN202310458700A CN116292779A CN 116292779 A CN116292779 A CN 116292779A CN 202310458700 A CN202310458700 A CN 202310458700A CN 116292779 A CN116292779 A CN 116292779A
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CN
China
Prior art keywords
planet
gear
bearing
wheel
cylindrical gear
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Pending
Application number
CN202310458700.4A
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Chinese (zh)
Inventor
冯涛
苗士军
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FAW Jiefang Automotive Co Ltd
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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 CN202310458700.4A priority Critical patent/CN116292779A/en
Publication of CN116292779A publication Critical patent/CN116292779A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • 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
    • F16H57/08—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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Abstract

An embodiment of the invention provides a through-axle speed reducer assembly, which comprises a first transmission assembly and a second transmission assembly meshed with the first transmission assembly, wherein the first transmission assembly comprises a driving shaft, a driving cylindrical gear rotationally connected with the driving shaft, a first planet wheel meshed with the driving cylindrical gear, a second planet wheel meshed with the first planet wheel and an output gear meshed with the second planet wheel. The first planet gears and the second planet gears are all cylindrical gears, so that the axial arrangement space is shortened, the overall weight is reduced, the cylindrical gears have no axial component force, and the transmission efficiency and the transmission reliability are improved.

Description

Through-bridge speed reducer assembly
Technical Field
The invention relates to the technical field of automobile axles, in particular to a through axle speed reducer assembly.
Background
The through axle is typically used in automobiles and structurally includes a speed reducer, an inter-axle differential, an inter-wheel differential, a half axle, a through axle, and the like. The through axle is positioned at the middle and tail ends of power transmission, the power transmitted by the engine through the transmission is distributed, half of the power is transmitted to the wheels through the main speed reducer, the half of the power is transmitted to the rear drive axle through the through axle at the through end to drive the vehicle to move forwards, and the driving force of the vehicle is increased.
The axial arrangement space of the interaxial differential mechanism of the traditional through axle is larger, and the transmission efficiency and the transmission reliability are lower.
Disclosure of Invention
Based on the above, an embodiment of the present invention provides a through-axle decelerator assembly capable of reducing a circumferential layout space and improving transmission efficiency and transmission reliability.
An embodiment of the present invention provides a through-axle decelerator assembly, including: the first transmission assembly comprises a driving shaft, a driving cylindrical gear rotationally connected with the driving shaft, a first planet wheel meshed with the driving cylindrical gear, a second planet wheel meshed with the first planet wheel and an output gear meshed with the second planet wheel, and the second transmission assembly is meshed with the driving cylindrical gear; wherein, first planet wheel and second planet wheel all set up to cylindrical gear.
In an embodiment, the driving cylindrical gear includes a cylindrical first body, a first input tooth disposed on an outer peripheral surface of the first body, and a second input tooth disposed on an inner peripheral surface of the first body, where the first input tooth is meshed with the second transmission assembly, and the second input tooth is meshed with the first planet gear.
In one embodiment, the first planetary gear comprises a first input wheel and a second input wheel coaxially arranged, the first input wheel is meshed with the second input tooth, and the second input wheel is meshed with the second planetary gear.
In an embodiment, the output gear includes a cylindrical second body and output teeth disposed on an inner peripheral surface of the second body, and the output teeth are meshed with the second planetary gear.
In an embodiment, the second planetary gear comprises a first output wheel and a second output wheel capable of synchronously rotating, the first output wheel is meshed with the first planetary gear, the second output wheel is meshed with the output teeth, and the outer diameters of the first input wheel and the second output wheel are the same.
In an embodiment, the first transmission assembly further includes a first bearing and a second bearing, and the first bearing and the second bearing are sleeved on the driving shaft and are respectively disposed on two sides of the driving cylindrical gear and the output gear.
In an embodiment, the first transmission assembly further includes a sliding gear sleeve connected to the driving shaft, the sliding gear sleeve and the driving cylindrical gear are sequentially arranged along a direction parallel to the axis of the driving shaft, a first end face tooth is arranged on an end face of the driving cylindrical gear towards the sliding gear sleeve, a second end face tooth is arranged on an end face of the sliding gear sleeve towards the driving cylindrical gear, and the sliding gear sleeve is configured to slide relative to the driving shaft so that the second end face tooth is meshed with or separated from the first end face tooth.
In an embodiment, the second transmission assembly further comprises a driven cylindrical gear meshed with the driving cylindrical gear, a driven shaft fixedly connected with the driven cylindrical gear, and a bevel gear fixedly connected with the driven shaft.
In an embodiment, the second transmission assembly further comprises a third bearing and a fourth bearing arranged on the driven shaft, and the third bearing and the fourth bearing are respectively positioned on two sides of the driven cylindrical gear.
In an embodiment, the first transmission assembly further includes a planet carrier, a first planet shaft and a second planet shaft, the planet carrier is fixedly connected with the driving shaft and is used for supporting the first planet wheel and the second planet wheel, the first planet shaft is used for rotationally connecting the first planet wheel to the planet carrier, and the second planet shaft is used for rotationally connecting the second planet wheel to the planet carrier.
According to the through-axle speed reducer assembly, the first planetary gear and the second planetary gear adopt the cylindrical gear pair structure, so that the axial arrangement space is shortened, the overall weight is reduced, the cylindrical gear has no axial component force, and the transmission efficiency and the transmission reliability are improved.
Drawings
FIG. 1 is a cross-sectional view of a through-axle decelerator assembly in accordance with an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a drive spur gear of a through-axle reducer assembly according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an output gear of a through-axle reducer assembly according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a planet carrier of a through-axle reducer assembly according to an embodiment of the invention;
fig. 5 is a perspective view of first and second planet gears of a through-axle reducer assembly of an embodiment of the invention mounted on a planet carrier.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Through researches, the conventional inter-axle differential mechanism of the through axle mostly adopts conical planetary gears and conical front and rear gears, and the conical planetary gears and the conical front and rear gears enable the axial arrangement space required by the inter-axle differential mechanism to be larger, and the transmission efficiency and the transmission reliability to be lower.
The invention designs a through-axle speed reducer assembly in order to solve the problems of larger axial arrangement space, lower transmission efficiency and lower transmission reliability of a traditional through-axle interaxle differential mechanism. Referring to fig. 1, an embodiment of the present invention provides a through-axle reducer assembly, which includes a first transmission assembly 1, a second transmission assembly 2 meshed with the first transmission assembly 1, and a housing 4 covering the first transmission assembly 1 and the second transmission assembly 2.
The first transmission assembly 1 comprises a driving shaft 10, a driving cylindrical gear 11 rotationally connected with the driving shaft 10, a first planetary gear 12 meshed with the driving cylindrical gear 11, a second planetary gear 13 meshed with the first planetary gear 12, a planet carrier 14 for supporting the first planetary gear 12 and the second planetary gear 13, a first planet shaft 15 for rotationally supporting the first planetary gear 12 on the planet carrier 14, a second planet shaft 16 for rotationally supporting the second planetary gear 13 on the planet carrier 14, an output gear 17 meshed with the second planetary gear 13 and a sliding tooth sleeve 18 connected with the driving shaft 10, wherein the output gear 17 is fixedly connected with a rear axle assembly. There is no relative movement between the sliding sleeve 18 and the drive shaft 10 in the circumferential direction, and the sliding sleeve 18 and the drive shaft 10 can move relatively in the axial direction. Wherein, first planet wheel 12 and second planet wheel 13, all set up to cylindrical gear, adopt cylindrical gear as the planetary gear, reduced axial arrangement space, in addition, cylindrical gear does not have axial component, has promoted transmission efficiency.
Cylindrical teeth of the first planet gear 12 are meshed with cylindrical tooth holes of the driving cylindrical gear 11, cylindrical teeth of the second planet gear 13 are meshed with cylindrical tooth holes of the output gear 17, cylindrical teeth are adopted between the first planet gear 12 and the second planet gear 13, radial arrangement space is reduced, the number of teeth of the gears is more, the indexing diameter is larger, and overall strength is improved.
Referring to fig. 2, the driving cylindrical gear 11 is entirely cylindrical, and is fitted around the driving shaft 10, and a needle bearing is provided between the driving cylindrical gear 11 and the driving shaft 10, so that the driving shaft 10 can rotatably support the driving cylindrical gear 11. The driving cylindrical gear 11 comprises a first body 111, a first input tooth 112 arranged on the outer peripheral surface of the first body 111, and a second input tooth 113 arranged on the inner peripheral surface of the first body 111, wherein the first input tooth 112 is meshed with the second transmission assembly 2, and the second input tooth 113 is meshed with the first planet gear 12. Further, the first body 111 includes a first mounting portion 1111 and a first receiving portion 1112 extending from the first mounting portion 1111 toward the output gear 17. The first mounting portion 1111 has an inner diameter smaller than that of the first accommodating portion 1112, the first mounting portion 1111 is rotatably connected to the driving shaft 10, the first accommodating portion 1112 is configured to accommodate a part of the planet carrier 14 and the first planet gears 12, the second input teeth 133 are disposed on an inner circumferential surface of the first accommodating portion 1112, and the needle bearing is disposed between the first mounting portion 1111 and the driving shaft 10.
In one embodiment, one of the drive shaft 10 and the sliding sleeve 18 is provided with a splined hole, and the other is provided with a spline, and the drive shaft 10 and the sliding sleeve 18 are prevented from rotating relative to each other in the circumferential direction by the engagement between the spline and the splined hole. The end face of the driving cylindrical gear 11 facing the sliding gear sleeve 18 is provided with a first end face tooth 1115, the end face of the sliding gear sleeve 18 facing the driving cylindrical gear 11 is provided with a second end face tooth, and the sliding gear sleeve 18 and the driving shaft 10 can move relatively in the axial direction so that the first end face tooth 1115 and the second end face tooth are meshed or separated.
In one embodiment, a spacer 19 is provided between the end faces of the drive cylindrical gear 11 and the drive shaft 10.
Referring to fig. 3, the output gear 17 is entirely cylindrical and is fitted around the outer periphery of the drive shaft 10, and the output gear 17 includes a second body 171 and output teeth 172 provided on the inner peripheral surface of the second body 171, and the output teeth 172 mesh with the second planetary gears 13. Further, the second body 171 includes a second mounting portion 1711 and a second accommodating portion 1712 extending from the second mounting portion 1711 toward the driving cylindrical gear 11, wherein an inner diameter of the second mounting portion 1711 is smaller than an inner diameter of the second accommodating portion 1712, the second mounting portion 1711 is rotatably connected with the driving shaft 10, the first accommodating portion 1112 is configured to accommodate part of the planet carrier 14 and the second planet gears 13, and the output teeth 172 are disposed on an inner circumferential surface of the second accommodating portion 1712.
Further, the second mounting portion 1711 is provided with a round hole matched with the driving shaft 10 and a splined hole matched with the input end of the rear axle assembly, and the input end of the rear axle assembly is fixedly connected with the second mounting portion 1711.
As shown in fig. 1 and 4, the planet carrier 14 is fixedly connected with the driving shaft 10 and is located in an accommodating space defined by the driving cylindrical gear 11 and the output gear 17. The planet carrier 14 is provided with a splined hole, the driving shaft 10 is provided with a spline matched with the splined hole, and the planet carrier 14 and the driving shaft 10 are fixedly installed together through the matching of the spline and the splined hole. The carrier 14 is provided with a fixing hole 141 for mounting the first and second planetary shafts 15 and 16, and the first and second planetary shafts 15 and 16 are penetrated into the fixing hole 141 and fixedly connected with the carrier 14 by a pin.
Referring to fig. 5, in the embodiment of the present disclosure, the first planetary gear 12 includes a first input wheel 121 meshed with the second input tooth 113 of the driving cylindrical gear 11 and a second input wheel 122 meshed with the second planetary gear 13, wherein the first input wheel 121 and the second input wheel 122 are coaxially disposed and have different outer diameters. Further, the second input wheel 122 is closer to the second planet wheel 13 than the first input wheel 121, and the outer diameter of the second input wheel 122 is larger than the outer diameter of the first input wheel 121. Through setting up the planet wheel of different external diameters, can adjust the transmission ratio according to the user demand, it is more nimble to use.
In the embodiment disclosed in the invention, the second planetary gear 13 comprises a first output wheel 131 meshed with the second input wheel 122 of the first planetary gear 12 and a second output wheel 132 meshed with the output teeth 172 of the output gear 17, wherein the first output wheel 131 and the second output wheel 132 are coaxially arranged and have different outer diameters. Further, the first output wheel 131 is closer to the first planet wheel 12 than the second output wheel 132, and the outer diameter of the second output wheel 132 is smaller than the outer diameter of the first output wheel 131. Through setting up the planet wheel of different external diameters, can adjust the transmission ratio according to the user demand, it is more nimble to use. The outer diameters of the first input wheel 121 and the second output wheel 132 are the same so that the output torque is the same, further improving the transmission stability. To ensure stable and smooth operation of the first transmission assembly 1, bearings are used to rotatably support the first transmission assembly 1 on the housing 4, and specifically, the first transmission assembly 1 further includes a first bearing 101 disposed between the output gear 17 and the housing 4, and a second bearing 102 disposed between the drive shaft 10 and the housing 4. The first bearing 101 and the second bearing 102 are arranged on two sides of the driving cylindrical gear 11 and the output gear 17 to form a straddle-type bearing structure, so that the stress performance can be improved, and the supporting stability can be improved.
Further, the first bearing 101 and the second bearing 102 are each provided with a mounting hole, the housing 4 is provided with a mounting hole for mounting the first bearing 101 and the second bearing 102, the shaft diameter of the driving shaft 10 and the shaft diameter of the output gear 17 are respectively fitted with the mounting holes of the first bearing 101 and the second bearing 102, and the first bearing 101 and the second bearing 102 are fitted with the mounting holes of the housing 4, so that the first bearing 101 is stably mounted between the output gear 17 and the housing 4, and the second bearing 102 is stably mounted between the driving shaft 10 and the housing 4.
The second transmission assembly 2 includes a driven cylindrical gear 21 engaged with the driving cylindrical gear 11, a driven shaft 22 fixedly connected with the driven cylindrical gear 21, and a bevel gear 23 fixedly connected with the driven shaft 22. The bevel gear 23 is provided at one end of the driven shaft 22, and the driven cylindrical gear 21 is fixedly connected with the driven shaft 22 so as to be capable of rotating in synchronization with the driven shaft 22. In one embodiment, one of the driven shaft 22 and the driven cylindrical gear 21 is provided with a splined hole, and the other is provided with a spline, and the driven cylindrical gear 21 and the driven shaft 22 are fixedly connected together through the cooperation of the spline and the splined hole.
In order to ensure stable and smooth rotation of the driven cylindrical gear 21, the driven shaft 22 is rotatably supported on the housing 4 by adopting a bearing, and further, the second transmission assembly 2 further comprises a third bearing 25, a fourth bearing 26, a spacer 27 and an adjusting gasket 28, wherein the third bearing 25 and the fourth bearing 26 are arranged on two sides of the driven cylindrical gear 21, the spacer 27 is arranged between the third bearing 25 and the driven cylindrical gear 21, and the adjusting gasket 28 is arranged between the driven cylindrical gear 21 and the fourth bearing 26. The third bearing 25 and the fourth bearing 26 are arranged on two sides of the driven cylindrical gear 21 to form a straddle-type bearing structure, so that the stress performance can be improved, and the supporting stability can be improved.
Wherein, the third bearing 25 is closer to the bevel gear 23 than the fourth bearing 26, the spacer 27 is disposed between the third bearing 25 and the driven cylindrical gear 21, and opposite sides of the spacer 27 are respectively abutted with the third bearing 25 and the driven cylindrical gear 21, and one side of the third bearing 25, which is close to the bevel gear 23, is abutted with the end face of the bevel gear 23, thereby realizing the limit of the third bearing 25 in the axial direction. A limit nut 29 is mounted at one end of the driven shaft 22 away from the bevel gear 23, one side of the fourth bearing 26 away from the bevel gear 23 is abutted against the limit nut 29, an adjusting gasket 28 is arranged between the fourth bearing 26 and the driven cylindrical gear 21, and two opposite sides of the adjusting gasket 28 are respectively abutted against the fourth bearing 26 and the driven cylindrical gear 21, so that the limit of the fourth bearing 26 in the axial direction is realized.
Further, the third bearing 25 and the fourth bearing 26 are provided with mounting holes, the housing 4 is provided with mounting holes for mounting the third bearing 25 and the fourth bearing 26, the shaft diameter of the driven shaft 22 is matched with the mounting holes of the third bearing 25 and the fourth bearing 26, and the third bearing 25 and the fourth bearing 26 are matched with the mounting holes of the housing 4, so that the third bearing 25 and the fourth bearing 26 are stably mounted between the driven shaft 22 and the housing 4.
In an embodiment, the through-axle speed reducer assembly further comprises an adjusting ring and an oil seal assembly 5, the adjusting ring and the oil seal assembly 5 are in threaded connection with the shell 4, an oil seal lip of the adjusting ring and the oil seal assembly 5 is matched with a shaft diameter of the flange 6, the flange 6 is in spline connection with the driving shaft 10, and the flange 6 is fixed with the driving shaft 10 by a fixing nut.
The first planet wheel 12 and the second planet wheel 13 of the through-axle speed reducer assembly adopt a cylindrical gear pair structure, the first planet wheel 12 and the second planet wheel 13 are connected with the planet carrier 14 through the first planet shaft 15 and the second planet shaft 16, the axial arrangement space is shortened, the whole weight is lightened, no axial component force exists, and the transmission efficiency and the transmission reliability are improved.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. A through-axle decelerator assembly comprising:
the first transmission assembly comprises a driving shaft, a driving cylindrical gear rotationally connected with the driving shaft, a first planet wheel meshed with the driving cylindrical gear, a second planet wheel meshed with the first planet wheel and an output gear meshed with the second planet wheel; a kind of electronic device with high-pressure air-conditioning system
The second transmission assembly is meshed with the driving cylindrical gear;
wherein, first planet wheel and second planet wheel all set up to cylindrical gear.
2. The through-axle reducer assembly of claim 1, wherein the drive spur gear comprises a first body having a cylindrical shape, a first input tooth disposed on an outer peripheral surface of the first body, and a second input tooth disposed on an inner peripheral surface of the first body, wherein the first input tooth is engaged with the second transmission assembly, and the second input tooth is engaged with the first planet gear.
3. The through-axle reducer assembly of claim 2, wherein the first planet wheel comprises a first input wheel and a second input wheel coaxially disposed, the first input wheel being in mesh with the second input tooth, the second input wheel being in mesh with the second planet wheel.
4. The through-axle reducer assembly of claim 3, wherein said output gear comprises a cylindrical second body and output teeth provided on an inner peripheral surface of said second body, said output teeth being in mesh with said second planetary gears.
5. The through-axle reducer assembly of claim 4, wherein said second planetary gear comprises first and second output wheels capable of synchronous rotation, said first output wheel being in mesh with said first planetary gear and said second output wheel being in mesh with said output teeth, wherein the outer diameters of said first and second output wheels are the same.
6. The through-axle reducer assembly of claim 1, wherein the first drive assembly further comprises a first bearing and a second bearing, the first bearing and the second bearing being sleeved on the drive shaft and disposed on both sides of the drive cylindrical gear and the output gear, respectively.
7. The through-axle reducer assembly of claim 1, wherein the first drive component further comprises a sliding tooth sleeve connected to the drive shaft, the sliding tooth sleeve and the drive cylindrical gear being sequentially arranged in a direction parallel to the axis of the drive shaft, an end face of the drive cylindrical gear facing the sliding tooth sleeve being provided with a first end face tooth, an end face of the sliding tooth sleeve facing the drive cylindrical gear being provided with a second end face tooth, the sliding tooth sleeve being configured to be slidable relative to the drive shaft to engage or disengage the second end face tooth with the first end face tooth.
8. The through-axle reducer assembly of claim 1, wherein said second drive assembly further comprises a driven cylindrical gear engaged with said drive cylindrical gear, a driven shaft fixedly connected to said driven cylindrical gear, and a bevel gear fixedly connected to said driven shaft.
9. The through-axle reducer assembly of claim 8, wherein the second drive component further comprises a third bearing and a fourth bearing disposed on the driven shaft, the third bearing and the fourth bearing being located on either side of the driven cylindrical gear, respectively.
10. The through-axle reducer assembly of claim 1, wherein the first transmission component further comprises a planet carrier fixedly connected to the drive shaft for supporting the first planet and the second planet, a first planet axle for rotatably connecting the first planet to the planet carrier, and a second planet axle for rotatably connecting the second planet to the planet carrier.
CN202310458700.4A 2023-04-26 2023-04-26 Through-bridge speed reducer assembly Pending CN116292779A (en)

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CN202310458700.4A CN116292779A (en) 2023-04-26 2023-04-26 Through-bridge speed reducer assembly

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Application Number Priority Date Filing Date Title
CN202310458700.4A CN116292779A (en) 2023-04-26 2023-04-26 Through-bridge speed reducer assembly

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CN116292779A true CN116292779A (en) 2023-06-23

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