CN112161027A - Engineering truck wheel limit walking planet decelerator - Google Patents

Engineering truck wheel limit walking planet decelerator Download PDF

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Publication number
CN112161027A
CN112161027A CN202011015888.8A CN202011015888A CN112161027A CN 112161027 A CN112161027 A CN 112161027A CN 202011015888 A CN202011015888 A CN 202011015888A CN 112161027 A CN112161027 A CN 112161027A
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CN
China
Prior art keywords
wheel
primary
planet carrier
inner gear
speed reducer
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.)
Pending
Application number
CN202011015888.8A
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Chinese (zh)
Inventor
关鹤
裴帮
赵玉凯
苗圩巍
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Zheng Ji Suo Zhengzhou Transmission Technology Co ltd
Original Assignee
Zhengzhou Research Institute of Mechanical Engineering Co Ltd
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Filing date
Publication date
Application filed by Zhengzhou Research Institute of Mechanical Engineering Co Ltd filed Critical Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority to CN202011015888.8A priority Critical patent/CN112161027A/en
Publication of CN112161027A publication Critical patent/CN112161027A/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
    • 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
    • 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
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • 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
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • 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
    • F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0416—Air cooling or ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0457—Splash lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0486—Gearings with gears having orbital motion with fixed gear ratio
    • 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
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/10—Braking arrangements
    • 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
    • F16H2001/289—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two or more coaxial and identical sets of orbital gears, e.g. for distributing torque between the coaxial sets
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F16H2057/0206—Gearboxes for particular applications for vehicle transmissions for commercial vehicles, e.g. buses or trucks
    • 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
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
    • 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
    • F16H2057/02091—Measures for reducing weight of gearbox

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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

The invention discloses a wheel-side traveling planetary speed reducer of an engineering truck, wherein the planetary speed reducer is of a two-stage planetary transmission structure, one end of an input shaft is fixedly connected with a wheel-side driving motor, a brake component is fixedly arranged between the input shaft and the wheel-side driving motor, the other end of the input shaft is fixedly connected with a primary sun wheel, O-shaped sealing rings are designed at the connecting parts of a bearing seat end cover and a primary inner gear ring as well as between the primary inner gear ring and a secondary inner gear ring, so that the good sealing property of the speed reducer is ensured, an air permeable cap is designed above a second-stage planet carrier and is connected with air permeable holes penetrating through the second-stage planet carrier, so that the good heat dissipation property of the speed reducer is ensured, the second-stage sun wheel is fixed on the first-stage planet carrier through a limiting block, a shaft retaining ring and a hole retaining ring, so that the, the noise and the heat generation are greatly reduced.

Description

Engineering truck wheel limit walking planet decelerator
Technical Field
The invention relates to the technical field of planetary speed reducers, in particular to a wheel-side traveling planetary speed reducer for an engineering truck.
Background
With the development of technology, the wheel hub reduction gear is widely applied to various heavy engineering and military traction vehicles, in particular to new energy engineering vehicles represented by electric mine cars, electric forklifts, electric tractors and the like. The engineering vehicles have the characteristics of low speed and heavy load, and in addition to the complex working environment, the wheel reduction gear has the defects of complex installation and maintenance, easy loosening of the planetary assembly, poor sealing property, poor heat dissipation and the like. Therefore, a wheel-side traveling planetary reduction gear which is good in reliability, convenient to install and maintain, good in lubricating and sealing effects, good in heat dissipation performance and light in weight is needed.
Disclosure of Invention
The invention aims to provide a wheel-side traveling planetary speed reducer of an engineering truck, wherein a through hole is formed in the middle of a secondary sun wheel, a primary sun wheel penetrates through the through hole of the secondary sun wheel to achieve the effects of compact structure and light weight, an O-shaped sealing ring is designed at the connecting part of a bearing seat end cover and a primary inner gear ring, and the primary inner gear ring and the secondary inner gear ring, so that the good sealing property of the speed reducer is ensured, an air permeable cap is designed above a secondary planet carrier and is connected with an air permeable hole penetrating through the secondary planet carrier, so that the good heat dissipation of the speed reducer is ensured, the two ends of the primary sun wheel are supported and fixed by a quenched ball top, so that the stable operation of a planetary assembly is ensured, the secondary sun wheel is fixed on the primary planet carrier through a limiting block, a shaft retaining ring and a hole retaining ring, the axial displacement of the secondary sun wheel is limited, and the generation, noise and heat generation are reduced to a great extent to solve the problems presented in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a wheel-side walking planetary speed reducer of an engineering vehicle comprises an input shaft, wherein one end of the input shaft is fixedly connected with a wheel-side driving motor, a brake component is fixedly arranged between the input shaft and the wheel-side driving motor, one end of the input shaft is fixedly connected with a primary sun gear, the top of the primary sun gear is engaged and connected with a primary planet gear, the top of the primary planet gear is engaged and connected with a primary inner gear ring, the primary sun gear floats in a primary planet carrier, one side of the primary planet carrier is fixedly connected with a secondary sun gear, one side of the primary planet carrier is fixedly provided with a bearing seat end cover, the other side of the primary planet carrier is fixedly provided with a bearing seat pressing plate, the other side of the secondary sun gear is engaged and connected with a secondary planet gear, the top of the secondary, and a through hole is formed in the middle of the secondary sun wheel, and the primary sun wheel penetrates through the through hole of the secondary sun wheel.
Preferably, the first-stage planet carrier is connected with the bearing seat end cover and the bearing seat pressing plate through a pair of deep groove ball bearings.
Preferably, the input shaft is connected with the first-stage sun gear through an internal spline and an external spline, a ball top is arranged between one side of the first-stage sun gear spline and the input shaft and is positioned, the ball top is quenched to meet the requirement of high hardness and wear resistance, the ball top is arranged on a ball top bearing seat through a deep groove ball bearing at the other side of the first-stage sun gear, and the ball top bearing seat is fixedly arranged on the first-stage planet carrier through a bolt.
Preferably, the primary sun gear is meshed with four sets of primary planet gears, the primary planet gears are meshed with a primary inner gear ring to rotate, the primary planet gears drive the primary planet carrier to rotate, the primary planet carrier drives the secondary sun gear to rotate, the secondary sun gear drives the secondary planet gears to rotate, the secondary planet carrier is fixed on a connecting support, and the connecting support is fixed on a frame of the engineering truck.
Preferably, the secondary inner gear ring is mounted on the secondary planet carrier through two sets of tapered roller bearings.
Preferably, the primary inner gear ring and the secondary inner gear ring are fixedly connected through a bolt and a cylindrical pin, a mounting hole connected with a wheel hub is formed in the outer diameter of the secondary inner gear ring, the wheel hub is connected with the secondary inner gear ring, the secondary planet wheel is in meshing transmission with the secondary inner gear ring, the secondary inner gear ring drives the primary inner gear ring and the bearing seat end cover to integrally rotate, the secondary inner gear ring drives the wheel hub to rotate to output torque, and the wheel hub drives the tire to rotate.
Preferably, the speed reducer lubrication mode is splash lubrication, and the input shaft are covered with a sealing system combining a framework oil seal and a wear-resistant sleeve.
Preferably, a box-type sealing element is arranged between the secondary planet carrier and the secondary inner gear ring, an O-shaped sealing ring is designed at the connecting part of the bearing seat end cover and the primary inner gear ring, and an O-shaped sealing ring is also designed at the connecting part of the primary inner gear ring and the secondary inner gear ring.
Preferably, a ventilation cap is designed above the secondary planet carrier and is connected with a ventilation hole penetrating through the secondary planet carrier.
Preferably, a limiting block is fixedly mounted on one side of the secondary sun gear, a hole check ring is fixedly mounted on one side of the limiting block, and a shaft check ring is fixedly mounted on one side of the limiting block.
Compared with the prior art, the invention has the beneficial effects that:
the middle of the second-level sun wheel is provided with a through hole, the first-level sun wheel penetrates through the through hole of the second-level sun wheel to realize the effect of compact structure and light weight, the connecting part of the bearing seat end cover and the first-level inner gear ring, and the connecting part of the first-level inner gear ring and the second-level inner gear ring is provided with an O-shaped sealing ring to ensure the good sealing property of the speed reducer, an air permeable cap is designed above the second-level planet carrier and is connected with an air permeable hole penetrating through the second-level planet carrier to ensure the good heat radiation property of the speed reducer, two ends of the first-level sun wheel are supported and fixed by a quenched ball top to, the shaft retainer ring and the hole retainer ring are fixed on the primary planet carrier, so that the axial displacement movement of the secondary sun gear is limited, the rotary friction between the secondary sun gear and the primary sun gear is avoided, and the noise and the heat generation are reduced to the great extent.
Drawings
FIG. 1 is a schematic structural view of a wheel-side traveling planetary reduction gear of an engineering truck in front view;
FIG. 2 is a schematic sectional view of the front view of the wheel-side traveling planetary reduction gear of the engineering truck of the present invention;
FIG. 3 is an enlarged structural schematic diagram of an A of the wheel-side traveling planetary reduction gear of the engineering truck of the invention;
fig. 4 is an enlarged structural schematic diagram of a B of the wheel-side traveling planetary reduction gear of the engineering truck.
In the figure: 1. an input shaft; 2. a wheel driving motor; 3. a brake assembly; 4. a primary sun gear; 5. a primary planet wheel; 6. a primary annular gear; 7. a primary planet carrier; 8. a secondary sun gear; 9. a bearing block end cover; 10. a bearing block pressing plate; 11. a secondary planet wheel; 12. a secondary annular gear; 13. a secondary planet carrier; 14. a deep groove ball bearing; 15. a ball top; 16. a ball top bearing seat; 17. a connecting bracket; 18. a tapered roller bearing; 19. a cylindrical pin; 20. a hub; 21. the input shaft is covered; 22. framework oil seal; 23. a wear-resistant sleeve; 24. a cartridge seal; 25. an O-shaped sealing ring; 26. a breathable cap; 27. air holes are formed; 28. a limiting block; 29. a retainer ring for a bore; 30. a retainer ring for a shaft.
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.
Referring to fig. 1-3, the present invention provides a technical solution: a planet speed reducer for the wheel side walking of an engineering vehicle comprises an input shaft 1, one end of the input shaft 1 is fixedly connected with a wheel side driving motor 2, the wheel side driving motor 2 is arranged to drive a wheel hub 20 to rotate and drive the vehicle to move forward, a brake component 3 is fixedly arranged between the input shaft 1 and the wheel side driving motor 2 and is arranged to control the speed of the vehicle, one end of the input shaft 1 is fixedly connected with a first-stage sun gear 4, the first-stage sun gear 4 is arranged to transmit power brought by the input shaft 1, the input shaft 1 is connected with the first-stage sun gear 4 in an internal and external spline mode, a ball top 15 is arranged between one spline side of the first-stage sun gear 4 and the input shaft 1 and is positioned, the ball top 15 is quenched to meet the requirements of high hardness and wear resistance, the ball top 15 arranged at the other side of the first-stage sun gear 4 is arranged on a ball top bearing seat 16 through a deep groove 14, the ball top, the primary planet carrier 7 is provided to mount the primary planet gears 5.
The top of the primary sun wheel 4 is engaged and connected with a primary planet wheel 5, the primary planet wheel 5 is arranged to split power when transmitting power, an input shaft 1 and an output shaft are kept on the same axis, the top of the primary planet wheel 5 is engaged and connected with a primary annular gear 6, the primary annular gear 6 is arranged to keep on the same axis with a primary planet carrier 7 in the transmission of the primary planet wheel 5, the primary sun wheel 4 is arranged in the primary planet carrier 7 in a floating way, one side of the primary planet carrier 7 is fixedly connected with a secondary sun wheel 8, the secondary sun wheel 8 is arranged to transmit the power of the primary planet component to the secondary planet component, a through hole is arranged in the middle of the secondary sun wheel 8, the primary sun wheel 4 passes through the through hole of the secondary sun wheel, one side of the secondary sun wheel 8 is fixedly provided with a limiting block 28, and one side, a shaft retainer ring 30 is fixedly arranged on one side of the limiting block 28, the secondary sun gear 8 is fixed on the primary planet carrier 7 through the limiting block 28, the shaft retainer ring 30 and a hole retainer ring 29, the axial displacement movement of the secondary sun gear 8 is limited, the generation of rotary friction between the secondary sun gear 8 and the primary sun gear 4 is avoided, the noise and the heat generation are reduced to the greatest extent, the secondary sun gear 8 is arranged in the secondary planet carrier 13 in a floating manner, a through hole is formed in the middle of the secondary sun gear 8, the primary sun gear 4 penetrates through the through hole of the secondary sun gear 8, one side of the secondary sun gear 8 is engaged and connected with a secondary planet gear 11, the secondary planet gear 11 is also arranged to split power when transmitting power, the input shaft 1 and the output shaft are kept on the same axis, the top of the secondary planet gear 11 is engaged and connected with a secondary inner gear ring 12, the secondary inner gear ring 12 is arranged on, the primary inner gear ring 6 and the secondary inner gear ring 12 are fixedly connected through bolts and cylindrical pins 19, a mounting hole connected with a hub 20 is formed in the outer diameter of the secondary inner gear ring 12, the hub 20 is arranged to drive tires to enable the engineering vehicle to move forward, and the hub 20 is combined with the secondary inner gear ring 12.
The working principle is as follows: the primary sun gear 4 is meshed with four groups of primary planet gears 5 to rotate, the primary planet gears 5 are meshed with a primary inner gear ring 6 to rotate, the primary planet gears 5 drive a primary planet carrier 7 to rotate, the primary planet carrier 7 drives a secondary sun gear 8 to rotate, the secondary sun gear 8 drives a secondary planet gear 11 to rotate, a secondary planet carrier 13 is fixed on a connecting support 17, the connecting support 17 is arranged to connect the hub driving motor 2 and a speed reducer mutually, the connecting support 17 is fixed on a frame of a engineering vehicle, the secondary planet gears 11 are meshed with a secondary inner gear ring 12 to drive the primary inner gear ring 6 and a bearing seat end cover 9 to integrally rotate, the secondary inner gear ring 12 drives a hub 20 to rotate to output torque, and the hub 20 drives a.
One side of the first-level planet carrier 7 is fixedly provided with a bearing seat end cover 9, the bearing seat end cover 9 is arranged to position the axial direction of the outer ring of the bearing, the other side of the first-level planet carrier 7 is fixedly provided with a bearing seat pressing plate 10, the bearing seat pressing plate 10 is arranged to fix the bearing, and the first-level planet carrier 7 is connected with the bearing seat end cover 9 and the bearing seat pressing plate 10 through a pair of deep groove ball bearings 14.
The lubrication mode of the speed reducer is splash lubrication, the input shaft 1 and the input shaft transparent cover 21 are provided with a sealing system formed by combining a framework oil seal 22 and a wear-resistant sleeve 23, a box-type sealing element 24 is arranged between the secondary planet carrier 13 and the secondary annular gear 12, and the box-type sealing element 24 is arranged for sealing the rotary joint of the secondary planet carrier 13 and the secondary annular gear 12.
An O-shaped sealing ring 25 is designed at the connecting part of the bearing seat end cover 9 and the first-stage inner gear ring 6, the first-stage inner gear ring 6 and the second-stage inner gear ring 12, the O-shaped sealing ring 25 is arranged to ensure good sealing performance of the speed reducer, a ventilation cap 26 is designed above the second-stage planet carrier 13, the ventilation cap 26 is connected with a ventilation hole 27 penetrating through the second-stage planet carrier 13, and the ventilation cap 26 and the ventilation hole 27 are arranged to ensure good heat dissipation performance of the speed reducer.
The secondary sun gear 8 is fixed on the primary planet carrier 7 through the limiting block 28, the shaft retainer ring 30 and the hole retainer ring 29, so that axial displacement movement of the secondary sun gear 8 is limited, rotational friction between the secondary sun gear 8 and the primary sun gear 4 is avoided, and noise and heat generation are reduced to the greatest extent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an engineering vehicle wheel limit walking planetary reduction gear, includes input shaft (1), its characterized in that: the brake device is characterized in that one end of the input shaft (1) is fixedly connected with a wheel-side driving motor (2), a brake component (3) is fixedly installed between the input shaft (1) and the wheel-side driving motor (2), one end of the input shaft (1) is fixedly connected with a primary sun gear (4), the top of the primary sun gear (4) is meshed with a primary planet gear (5), the top of the primary planet gear (5) is meshed with a primary inner gear ring (6), the primary sun gear (4) is installed in a primary planet carrier (7) in a floating mode, one side of the primary planet carrier (7) is fixedly connected with a secondary sun gear (8), one side of the primary planet carrier (7) is fixedly installed with a bearing seat end cover (9), the other side of the primary planet carrier (7) is fixedly installed with a bearing seat pressing plate (10), and the other, the top of the secondary planet wheel (11) is connected with a secondary inner gear ring (12) in a meshing manner, the secondary sun wheel (8) is installed in a secondary planet carrier (13) in a floating manner, a through hole is formed in the middle of the secondary sun wheel (8), and the primary sun wheel (4) penetrates through the through hole of the secondary sun wheel (8).
2. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: the primary planet carrier (7) is connected with the bearing seat end cover (9) and the bearing seat pressure plate (10) through a pair of deep groove ball bearings (14).
3. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: the input shaft (1) links with one-level sun gear (4) with the internal and external spline mode, there is ball top (15) location between one-level sun gear (4) spline one side and input shaft (1), ball top (15) are through quenching in order to reach the wear-resisting requirement of high hardness, the ball top 15 that one-level sun gear 4 opposite side set up is installed on ball top bearing frame (16) through deep groove ball bearing (14), ball top bearing frame (16) are through bolt fixed mounting on one-level planet carrier (7).
4. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: one-level sun gear (4) and four one-level planet wheel (5) meshing rotation of group, one-level planet wheel (5) and one-level ring gear (6) meshing rotation, one-level planet wheel (5) drive one-level planet carrier (7) and rotate, one-level planet carrier (7) drive second grade sun gear (8) and rotate, second grade sun gear (8) drive second grade planet wheel (11) and rotate, second grade planet carrier (13) are fixed on hookup support (17), hookup support (17) are fixed on the engineering vehicle frame.
5. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: the secondary annular gear (12) is mounted on a secondary planet carrier (13) through two sets of tapered roller bearings (18).
6. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: the primary inner gear ring (6) and the secondary inner gear ring (12) are fixedly connected through bolts and cylindrical pins (19), a mounting hole connected with a wheel hub (20) is formed in the outer diameter of the secondary inner gear ring (12), the wheel hub (20) is connected with the secondary inner gear ring (12), the secondary planet wheel (11) is in meshing transmission with the secondary inner gear ring (12), the secondary inner gear ring (12) drives the primary inner gear ring (6), a bearing seat end cover (9) integrally rotates, the secondary inner gear ring (12) drives the wheel hub (20) to rotate to output torque, and the wheel hub (20) drives a tire to rotate.
7. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: the speed reducer is lubricated in a splash mode, and the input shaft (1) and the input shaft transparent cover (21) are provided with a sealing system formed by combining a framework oil seal (22) and a wear-resistant sleeve (23).
8. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: a box-shaped sealing element (24) is arranged between the secondary planet carrier (13) and the secondary inner gear ring (12), an O-shaped sealing ring (25) is designed at the connecting part of the bearing seat end cover (9) and the primary inner gear ring (6), and the O-shaped sealing ring (25) is also designed at the connecting part of the primary inner gear ring (6) and the secondary inner gear ring (12).
9. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: a ventilation cap (26) is designed above the secondary planet carrier (13), and the ventilation cap (26) is connected with a ventilation hole (27) which penetrates through the secondary planet carrier (13).
10. The wheel-side walking planetary speed reducer of the engineering truck as claimed in claim 1, wherein: a limiting block (28) is fixedly mounted on one side of the secondary sun gear (8), a hole check ring (29) is fixedly mounted on one side of the limiting block (28), and a shaft check ring (30) is fixedly mounted on one side of the limiting block (28).
CN202011015888.8A 2020-09-24 2020-09-24 Engineering truck wheel limit walking planet decelerator Pending CN112161027A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671344A (en) * 2022-05-27 2022-06-28 河南东起机械有限公司 Crane power assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006015785A (en) * 2004-06-30 2006-01-19 Fuji Heavy Ind Ltd Driving device for electric automobile
CN107939914A (en) * 2017-11-21 2018-04-20 资阳中车传动有限公司 A kind of mine electric wheel dump retarder
CN108248368A (en) * 2018-03-13 2018-07-06 上海振华重工(集团)股份有限公司 The driving device and loading hoisting conveyer of rubber-tyred loading hoisting conveyer
CN110332284A (en) * 2019-07-22 2019-10-15 湖北科峰传动设备有限公司 A kind of twin-stage driving speed reducer of band brake axis
CN213575373U (en) * 2020-09-24 2021-06-29 郑州机械研究所有限公司 Engineering truck wheel limit walking planet decelerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006015785A (en) * 2004-06-30 2006-01-19 Fuji Heavy Ind Ltd Driving device for electric automobile
CN107939914A (en) * 2017-11-21 2018-04-20 资阳中车传动有限公司 A kind of mine electric wheel dump retarder
CN108248368A (en) * 2018-03-13 2018-07-06 上海振华重工(集团)股份有限公司 The driving device and loading hoisting conveyer of rubber-tyred loading hoisting conveyer
CN110332284A (en) * 2019-07-22 2019-10-15 湖北科峰传动设备有限公司 A kind of twin-stage driving speed reducer of band brake axis
CN213575373U (en) * 2020-09-24 2021-06-29 郑州机械研究所有限公司 Engineering truck wheel limit walking planet decelerator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
艾里希·霍佩克: "《商用车技术 原理系统和部件》", 中国矿业大学出版社, pages: 400 - 403 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671344A (en) * 2022-05-27 2022-06-28 河南东起机械有限公司 Crane power assembly

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