CN111692294A - Novel walking speed reducer structure of hydraulic excavator - Google Patents

Novel walking speed reducer structure of hydraulic excavator Download PDF

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Publication number
CN111692294A
CN111692294A CN202010594044.7A CN202010594044A CN111692294A CN 111692294 A CN111692294 A CN 111692294A CN 202010594044 A CN202010594044 A CN 202010594044A CN 111692294 A CN111692294 A CN 111692294A
Authority
CN
China
Prior art keywords
sun gear
speed reducer
walking speed
end cover
fixed shell
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
CN202010594044.7A
Other languages
Chinese (zh)
Inventor
石立京
张宏
秦家升
刘邓
文俊
周显
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.)
Xuzhou XCMG Mining Machinery Co Ltd
Original Assignee
Xuzhou XCMG Mining Machinery 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 Xuzhou XCMG Mining Machinery Co Ltd filed Critical Xuzhou XCMG Mining Machinery Co Ltd
Priority to CN202010594044.7A priority Critical patent/CN111692294A/en
Publication of CN111692294A publication Critical patent/CN111692294A/en
Pending legal-status Critical Current

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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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or 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
    • 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
    • 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
    • F16H2057/02056—Gearboxes for particular applications for vehicle transmissions for utility vehicles, e.g. tractors or agricultural machines
    • 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
    • F16H57/022—Adjustment of gear shafts or bearings
    • F16H2057/0221—Axial adjustment
    • 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

Abstract

A novel walking speed reducer structure of a hydraulic excavator comprises a fixed shell and an end cover, wherein a plurality of stages of planetary gear structures are arranged between the fixed shell and the end cover, an output end planet carrier is connected with the fixed shell through a fixing bolt, a main bearing in contact with the output end planet carrier is arranged on the fixed shell, and an adjusting pad is arranged between the main bearing and the output end planet carrier; a bearing is arranged between the end cover and the input end sun gear; high-temperature-resistant and wear-resistant gaskets are arranged between all stages of planetary gear structures. The walking speed reducer structure of the hydraulic excavator can avoid structural damage caused by the adoption of a special tool or destructive operation when the floating oil seal is replaced; the load under multiple working conditions can be met, the service life of the walking speed reducer is greatly prolonged, and the fault rate of the whole machine is reduced; can effectively absorb the end cover and warp and prevent the train sintering, adopt bearing structure simultaneously between input stage sun gear and the end cover, can compensate wearing and tearing and noise etc. that the speed difference brought.

Description

Novel walking speed reducer structure of hydraulic excavator
Technical Field
The invention relates to the technical field of engineering machinery transmission devices, in particular to a novel walking speed reducer structure of a hydraulic excavator.
Background
The hydraulic excavator is an engineering machine which uses a bucket to excavate materials higher or lower than a bearing surface and loads the materials into a transport vehicle or unloads the materials to a stockyard, firstly, the operation environment is severe, a walking speed reducer is mostly in a high-dust, soaking or humid environment, the maintenance frequency of a floating oil seal is high, and the traditional structure can finish the replacement of the floating oil seal by a special tool or destructive operation; secondly, the walking speed reducer is various in working postures and is provided with various working machines, so that the walking speed reducer is subjected to large axial load, the main bearing locking structure is invalid, and the walking speed reducer leaks oil and even cannot work; finally, when the hydraulic excavator works in a stone mine, the end cover of the walking speed reducer is impacted by a foreign object and deformed, so that the wheel train is sintered.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a novel hydraulic excavator walking speed reducer structure with simple structure and good effect.
The invention is realized by the following technical scheme: a novel walking speed reducer structure of a hydraulic excavator comprises a fixed shell and an end cover, wherein a plurality of stages of planetary gear structures are arranged between the fixed shell and the end cover, one end close to the fixed shell is an output end planetary gear structure, the other end close to the end cover is an input end planetary gear structure, an output end planet carrier of the output end planetary gear structure is connected with the fixed shell through a fixing bolt, a main bearing in contact with the output end planet carrier is arranged on the fixed shell, and an adjusting pad is arranged between the main bearing and the output end planet carrier; a bearing is arranged between the end cover and an input end sun gear of the input end planetary gear structure; high-temperature-resistant and wear-resistant gaskets are arranged between all stages of planetary gear structures.
It further comprises the following steps: and a three-stage planetary gear structure is arranged between the fixed shell and the end cover and comprises a three-stage planet carrier, a three-stage sun gear, a two-stage planet carrier, a two-stage sun gear, a one-stage planet carrier and a one-stage sun gear.
And the three-stage planet carrier is connected with the fixed shell through a plurality of fixing bolts.
The inner ring of the bearing is provided with a thrust plug which is fixed on the end cover, and the primary sun gear is axially limited by the thrust plug.
Be equipped with gasket III between tertiary planet carrier and the tertiary sun gear, be equipped with gasket II between tertiary sun gear and the second grade sun gear, be equipped with gasket I between second grade sun gear and the one-level sun gear.
The gasket is made of resin.
The invention has the following advantages: according to the walking speed reducer structure of the hydraulic excavator, the pretightening force of the bearing is adjusted through the adjusting pad, so that structural damage caused by the adoption of a special tool or destructive operation during replacement of the floating oil seal can be avoided; the specifications and the number of the fixing bolts are adjusted, so that multi-working-condition loads can be met, the service life of the walking speed reducer is greatly prolonged, and the fault rate of the whole machine is reduced; the high-temperature-resistant and wear-resistant resin material gaskets are arranged between the speed difference components in the gear train, so that the deformation of the end cover can be effectively absorbed to prevent the gear train from sintering, and meanwhile, the bearing structure is arranged between the input-stage sun gear and the end cover, so that the abrasion, noise and the like caused by the speed difference can be compensated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a stationary housing; 2. Fixing the bolt; 3. A main bearing; 4. an adjustment pad; 5. A third-stage planet carrier; 6. a gasket III; 7. a third-stage sun gear; 8. a secondary planet carrier; 9. a gasket II; 10. a secondary sun gear; 11. a primary planet carrier; 12. a gasket I; 13. a primary sun gear; 14. a thrust plug; 15. and a bearing.
Detailed Description
The novel walking speed reducer structure of the hydraulic excavator shown in fig. 1 comprises a fixed shell 1 and an end cover, wherein a plurality of stages of planetary gear structures are arranged between the fixed shell 1 and the end cover, an output end planetary gear structure is arranged at one end close to the fixed shell 1, an input end planetary gear structure is arranged at one end close to the end cover, an output end planet carrier of the output end planetary gear structure is connected with the fixed shell 1 through a fixing bolt 2, a main bearing 3 which is in contact with the output end planet carrier is arranged on the fixed shell 1, and an adjusting pad 4 is arranged between the main bearing 3 and the output end planet carrier; a bearing 15 is arranged between the end cover and an input end sun gear of the input end planetary gear structure; high-temperature-resistant and wear-resistant gaskets are arranged between all stages of planetary gear structures. The walking speed reducer structure of the hydraulic excavator adopts a multi-stage planetary speed reducing mechanism, the speed reducer structure is from an end cover to a fixed shell and respectively comprises an input end to an output end, a planet carrier of the output end is fixed on the fixed shell through a plurality of fixing bolts, a floating oil seal is convenient to replace in the later period, a larger axial load can be borne, a main bearing in contact with the planet carrier of the output end is arranged on the fixed shell, an adjusting pad is arranged between the main bearing and the planet carrier of the output end, the manufacturing deviation is compensated through the adjusting pad, and the requirement of the pretightening; when the adjustable walking speed reducer is used, the specification and the number of the fixing bolts can be adjusted according to the axial load of the walking speed reducer, so that the multi-working-condition load is met, the service life of the walking speed reducer is greatly prolonged, and the fault rate of the whole machine is reduced; a bearing is arranged between the end cover and the input end sun gear, so that abrasion, noise and the like caused by speed difference can be made up; high-temperature-resistant and wear-resistant gaskets are adopted between speed difference components in the wheel train, so that the deformation of the end cover can be effectively absorbed to prevent the wheel train from sintering.
As shown in fig. 1, a novel hydraulic excavator walking speed reducer structure is provided with a three-stage planetary gear structure between a fixed casing 1 and an end cover, and comprises a three-stage planet carrier 5, a three-stage sun gear 7, a two-stage planet carrier 8, a two-stage sun gear 10, a one-stage planet carrier 11 and a one-stage sun gear 13. The third-stage planet carrier 5 is connected with the fixed shell 1 through a plurality of fixing bolts 2. Be equipped with gasket III 6 between tertiary planet carrier 5 and the tertiary sun gear 7, be equipped with gasket II 9 between tertiary sun gear 7 and the second grade sun gear 10, be equipped with gasket I12 between second grade sun gear 10 and the one-level sun gear 13. The gasket is made of resin. The hydraulic excavator walking speed reducer structure adopts a three-level planetary speed reducer structure, gaskets III, II and I are respectively arranged between a three-level planet carrier and a three-level sun gear, between the three-level sun gear and a two-level sun gear and between the two-level sun gear and the one-level sun gear, and the gaskets III, II and I are made of high-temperature-resistant and wear-resistant resin materials, so that the sintering of the one-level sun gear and the two-level sun gear, the sintering of the two-level sun gear and the three-level sun gear and the sintering of the three-level sun gear and the three-level planet carrier, which are caused by the fact that the walking speed reducer is subjected to large axial force, can be effectively avoided.
As shown in fig. 1, in the novel walking speed reducer structure of the hydraulic excavator, a thrust plug 14 is arranged on an inner ring of the bearing 15, the thrust plug 14 is fixed on an end cover, and the primary sun gear 13 is axially limited by the thrust plug 14. The end cover of the hydraulic excavator walking speed reducer structure is provided with the thrust plug, the input end sun gear is axially limited by the thrust plug, the input end sun gear is high in rotating speed, the thrust plug is low in rotating speed, when the input end sun gear is in contact with the thrust plug, impurities and noise can be generated due to the speed difference, and due to the fact that the bearing is arranged between the end cover and the input end sun gear, abrasion and noise can be effectively avoided, and impurities or sintering caused by relative movement can also be avoided.

Claims (6)

1. The utility model provides a novel hydraulic shovel walking speed reducer structure which characterized in that: the planetary gear transmission mechanism comprises a fixed shell (1) and an end cover, wherein a plurality of stages of planetary gear structures are arranged between the fixed shell (1) and the end cover, one end close to the fixed shell (1) is an output end planetary gear structure, one end close to the end cover is an input end planetary gear structure, an output end planetary carrier of the output end planetary gear structure is connected with the fixed shell (1) through a fixing bolt (2), a main bearing (3) in contact with the output end planetary carrier is arranged on the fixed shell (1), and an adjusting pad (4) is arranged between the main bearing (3) and the output end planetary carrier; a bearing (15) is arranged between the end cover and the input end sun gear of the input end planetary gear structure; high-temperature-resistant and wear-resistant gaskets are arranged between all stages of planetary gear structures.
2. The novel hydraulic excavator walking speed reducer structure of claim 1, characterized in that: be equipped with tertiary planetary gear structure between fixed casing (1) and the end cover, including tertiary planet carrier (5), tertiary sun gear (7), second grade planet carrier (8), second grade sun gear (10), one-level planet carrier (11) and one-level sun gear (13).
3. The novel hydraulic excavator walking speed reducer structure of claim 2, characterized in that: the three-stage planet carrier (5) is connected with the fixed shell (1) through a plurality of fixing bolts (2).
4. The novel hydraulic excavator walking speed reducer structure of claim 2, characterized in that: the inner ring of the bearing (15) is provided with a thrust plug (14), the thrust plug (14) is fixed on the end cover, and the primary sun gear (13) is axially limited by the thrust plug (14).
5. The novel hydraulic excavator walking speed reducer structure of claim 2, characterized in that: be equipped with gasket III (6) between tertiary planet carrier (5) and tertiary sun gear (7), be equipped with gasket II (9) between tertiary sun gear (7) and second grade sun gear (10), be equipped with gasket I (12) between second grade sun gear (10) and one-level sun gear (13).
6. The novel hydraulic excavator walking speed reducer structure of claim 1, characterized in that: the gasket is made of resin.
CN202010594044.7A 2020-06-28 2020-06-28 Novel walking speed reducer structure of hydraulic excavator Pending CN111692294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010594044.7A CN111692294A (en) 2020-06-28 2020-06-28 Novel walking speed reducer structure of hydraulic excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010594044.7A CN111692294A (en) 2020-06-28 2020-06-28 Novel walking speed reducer structure of hydraulic excavator

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Publication Number Publication Date
CN111692294A true CN111692294A (en) 2020-09-22

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CN202010594044.7A Pending CN111692294A (en) 2020-06-28 2020-06-28 Novel walking speed reducer structure of hydraulic excavator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114370490A (en) * 2021-12-31 2022-04-19 江苏汇智高端工程机械创新中心有限公司 Axial impact resistant short axial crawler belt walking speed reducer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07180751A (en) * 1993-12-22 1995-07-18 Komatsu Ltd Method and device for making epicycle reduction gear use in common
CN102510810A (en) * 2009-09-25 2012-06-20 卡特彼勒公司 Axle shaft cover plate with bearing assembly
CN202326936U (en) * 2011-11-25 2012-07-11 宁波德辰液压科技有限公司 Traveling driving device
CN203374737U (en) * 2013-07-16 2014-01-01 泊姆克(天津)液压有限公司 Closed planetary gear reducer
CN203857015U (en) * 2014-05-16 2014-10-01 四川工程职业技术学院 Limiting device on speed reducer
CN204420058U (en) * 2014-12-26 2015-06-24 宁波佩卡液压有限公司 The fastening structure of the tapered roller bearing in a kind of driving speed reducer
JP2016114140A (en) * 2014-12-15 2016-06-23 株式会社不二越 Hydraulic travel motor with speed reducer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07180751A (en) * 1993-12-22 1995-07-18 Komatsu Ltd Method and device for making epicycle reduction gear use in common
CN102510810A (en) * 2009-09-25 2012-06-20 卡特彼勒公司 Axle shaft cover plate with bearing assembly
CN202326936U (en) * 2011-11-25 2012-07-11 宁波德辰液压科技有限公司 Traveling driving device
CN203374737U (en) * 2013-07-16 2014-01-01 泊姆克(天津)液压有限公司 Closed planetary gear reducer
CN203857015U (en) * 2014-05-16 2014-10-01 四川工程职业技术学院 Limiting device on speed reducer
JP2016114140A (en) * 2014-12-15 2016-06-23 株式会社不二越 Hydraulic travel motor with speed reducer
CN204420058U (en) * 2014-12-26 2015-06-24 宁波佩卡液压有限公司 The fastening structure of the tapered roller bearing in a kind of driving speed reducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114370490A (en) * 2021-12-31 2022-04-19 江苏汇智高端工程机械创新中心有限公司 Axial impact resistant short axial crawler belt walking speed reducer

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Application publication date: 20200922

RJ01 Rejection of invention patent application after publication