CN104019213A - Main reducer assembly with unit bearing with integrated flange and bearing base - Google Patents

Main reducer assembly with unit bearing with integrated flange and bearing base Download PDF

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Publication number
CN104019213A
CN104019213A CN201410279874.5A CN201410279874A CN104019213A CN 104019213 A CN104019213 A CN 104019213A CN 201410279874 A CN201410279874 A CN 201410279874A CN 104019213 A CN104019213 A CN 104019213A
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CN
China
Prior art keywords
bearing
bevel gear
inner race
assembly
bearing inner
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.)
Granted
Application number
CN201410279874.5A
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Chinese (zh)
Other versions
CN104019213B (en
Inventor
兰常艳
施文爱
祝显奇
梁清林
代昌权
王宇鹏
苏翠娟
黄在璐
慕敏
蓝俊
樊文问
薛塬东
张武冠
覃伟涛
覃健
陈媛媛
钟广平
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.)
Fangsheng Axle (Liuzhou) Co Ltd
Original Assignee
Fangsheng Axle (Liuzhou) 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 Fangsheng Axle (Liuzhou) Co Ltd filed Critical Fangsheng Axle (Liuzhou) Co Ltd
Priority to CN201410279874.5A priority Critical patent/CN104019213B/en
Publication of CN104019213A publication Critical patent/CN104019213A/en
Application granted granted Critical
Publication of CN104019213B publication Critical patent/CN104019213B/en
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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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/037—Gearboxes for accommodating differential 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469—Bearings or seals
    • F16H57/0471—Bearing

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

Abstract

The invention discloses a main reducer assembly with a unit bearing with integrated flange and bearing base and relates to a car accessory. The main reducer assembly comprises a main reducer shell, a driving bevel gear, a differential mechanism, a driven bevel gear assembly and a driving bevel gear unit bearing, wherein the driving bevel gear unit bearing comprises a bearing outer ring and bearing inner rings A and B; the flange is arranged at the upper end of the bearing inner ring B, and an inner hole of the bearing inner ring A is mounted on an optical shaft of a wheel shaft of the driving bevel gear; a counter bore of the bearing inner ring B is mounted on the optical shaft of the wheel shaft of the driving bevel gear in an interference fit manner, and a splined hole is mounted on a splined shaft of the wheel shaft of the driving bevel gear; the bearing inner rings A and B are sleeved by the bearing outer ring, a tapered roller is mounted between an inner hole of the bearing outer ring and the outer circle of the bearing inner rings A and B, and the outer periphery of the bearing outer ring is fixed on the main reducer shell through a connecting piece. The main reducer assembly has the advantages of simple structure, easiness in assembly, low production cost, high reliability, low maintenance cost and easiness in promotion and use, the abnormal wear and ablation risk of the wheel shaft of the driving bevel gear are reduced, and the strength of the main reducer shell and the bearing outer ring is improved.

Description

The integrated unit bearing master of bead bearing support subtracts assembly
Technical field
The present invention relates to a kind of auto parts machinery, particularly the integrated unit bearing master of a kind of bead bearing support subtracts assembly.
Background technique
Automobile main reducer generally comprises main subtract housing, bearing support at present, bead, bead nut, setting sleeve, oil sealing, drive bevel gear, drive bevel gear bearing (2 tapered roller bearings or 1 double row bearing), differential mechanism and driven wheel of differential assembly, generally there is following defect in the automobile main reducer of this structure: 1. complex structure, assembly process is more; 2. assembly process precision prescribed is high, need to adjust bearing clearance etc., assembler is required high; 3. assembly process is many, and precision prescribed is high, needs a large amount of frocks; 4. the sliding system of drive bevel gear bearing and whole rear axle assy lubrication system UNICOM, iron filings, the sand and dust etc. that in rear axle assy, lubricant oil contains easily enter in drive bevel gear bearing, cause the ablation of wearing and tearing of driving tapered gear shaft abnormal in early stage; 5. the oil duct that drive bevel gear bearing lubrication system needs is slotted and is subtracted on shell and bearing support in main, is unfavorable for main reducing gear integral arrangement, and reduces main subtract shell and bearing support intensity; 6. because drive bevel gear bearing play is adjusted improper or has iron filings to enter main reducing gear lubrication system, easily cause driving tapered gear shaft abnormal in early stage wearing and tearing ablation, make main reducing gear poor reliability, maintenance period is shorter, and maintenance cost is higher.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of simple in structure, assembling to be easy to the integrated unit bearing master of bead bearing support and to subtract assembly.
The technological scheme solving the problems of the technologies described above is: the integrated unit bearing master of a kind of bead bearing support subtracts assembly, comprise the main housing that subtracts, drive bevel gear, differential mechanism and driven wheel of differential assembly, the step-like wheel shaft that described drive bevel gear comprises bevel gear body and is made up of optical axis and splined shaft, described differential mechanism and driven wheel of differential assembly comprise differential bearing, by dynamic bevel gear, differential assembly, the integrated unit bearing master of described bead bearing support subtracts assembly and also includes collection active conical tooth wheel support bearing, bearing support, bead assembly is in the drive bevel gear unit bearing of one, this drive bevel gear unit bearing comprises the bearing outer ring that plays bearing support effect, retainer, tapered roller, bearing inner race A, play the bearing inner race B of bead assembly effect, described bearing inner race B endoporus is the up-small and down-big step hole being made up of splined hole and counterbore, the upper end of this bearing inner race B is provided with bead, described bearing inner race A endoporus is arranged on the optical axis of drive bevel gear wheel shaft, the counterbore of bearing inner race B adopts the mode of interference fit to be arranged on the optical axis of drive bevel gear wheel shaft of bearing inner race A top, the splined hole of bearing inner race B is adopted on the splined shaft that splined mode is arranged on drive bevel gear wheel shaft, and the top of drive bevel gear wheel shaft is by setting sleeve, bead nut location, locked, described bearing outer ring is enclosed within outside bearing inner race B, bearing inner race A, described retainer and tapered roller are installed between the cylindrical of the endoporus of this bearing outer ring and bearing inner race B, bearing inner race A, and the periphery of bearing outer ring is fixed on main subtracting on housing by link.
Further technological scheme of the present invention is: the endoporus of described bearing outer ring is separately installed with oil sealing at the two ends up and down of tapered roller.
Owing to adopting said structure, the present invention's the integrated unit bearing master of bead bearing support subtracts assembly compared with prior art, has following beneficial effect:
1. simple in structure, assembling is easily:
Because subtracting assembly, the present invention's the integrated unit bearing master of bead bearing support comprises main subtract housing, drive bevel gear, differential mechanism and driven wheel of differential assembly, drive bevel gear unit bearing, wherein drive bevel gear unit bearing is integrated in one active conical tooth wheel support bearing, bearing support, bead assembly, not only simplify the structure, greatly reduce assembly process, and without adjusting bearing clearance, reduce the commissioning content of assembly process, reduced required precision and matching requirements.
2. reduce frock and drop into, reduce production costs:
Because the present invention has reduced assembly process, thereby also reduce frock input, not only reduced cost of production, also simplified assembly environment.
3. reduced driving tapered gear shaft abnormal in early stage wearing and tearing ablation risk:
Because the present invention is without carrying out the adjustment of drive bevel gear bearing play, and because bearing outer ring endoporus of the present invention is separately installed with oil sealing at the two ends up and down of tapered roller, make drive bevel gear unit bearing have independently lubrication system, no longer, with whole rear axle assy lubrication system UNICOM, reduce the iron filings, the sand and dust etc. that contain because of lubricant oil in rear axle assy and easily entered the driving tapered gear shaft abnormal in early stage wearing and tearing ablation risk causing in drive bevel gear bearing.
4. difficulty of processing is low, reliability is high, life cycle is long, maintenance cost is low:
Owing to being to position by the mode of interference fit between the bearing inner race B of drive bevel gear unit bearing of the present invention and drive bevel gear wheel shaft, be to adopt the mode of interference fit to be arranged on the drive bevel gear wheel shaft optical axis of bearing inner race A top the counterbore of bearing inner race B, by the orientation type of this interference fit, not only can allow to have gap between the splined hole of bearing inner race B and the splined shaft of drive bevel gear wheel shaft, greatly reduce the difficulty of processing between splined hole and splined shaft; Can also make bearing inner race B can play the effect of bearing inner race, its reliability is high simultaneously; In addition, because the present invention has reduced driving tapered gear shaft abnormal in early stage wearing and tearing ablation risk, greatly improve the reliability of main reducing gear, extended life cycle, reduced maintenance cost.
5. improved the main intensity that subtracts housing and bearing outer ring:
Because bearing outer ring endoporus of the present invention is separately installed with oil sealing at the two ends up and down of tapered roller, make drive bevel gear unit bearing have independently lubrication system, without oil duct fluting is located to main subtracting on housing and bearing outer ring, not only be conducive to the integral arrangement of main reducing gear, and improved the main intensity that subtracts housing and bearing outer ring.
The technical characteristics that in conjunction with the accompanying drawings and embodiments the integrated unit bearing master of the present invention's bead bearing support is subtracted to assembly below, is further described.
Brief description of the drawings
Fig. 1: the present invention's the integrated unit bearing master of bead bearing support subtracts the structural representation of assembly;
Fig. 2: the structural representation of drive bevel gear unit bearing;
In figure, the label declaration of each major part is as follows:
1-drive bevel gear unit bearing,
101-bearing outer ring, 102-retainer, 103-tapered roller, 104-bearing inner race A,
105-bearing inner race B, 1051-splined hole, 1052-counterbore, 1053-bead, 106-oil sealing,
2-drive bevel gear, 3-bead nut, 4-setting sleeve, 5-bolt,
6-master subtracts housing, 7-connecting bolt, and 8-differential bearing, 9-adjusting nut,
10-bearing cap, 11-bolt of bearing cap, 12-is by dynamic bevel gear, 13-differential assembly,
14-locking plate bolt, 15-locking plate, 16-guide bearing.
Embodiment
Embodiment one:
Disclosed in Fig. 1 is that the integrated unit bearing master of a kind of bead bearing support subtracts assembly, comprise main subtract housing 6, drive bevel gear 2, differential mechanism and driven wheel of differential assembly, the step-like wheel shaft that described drive bevel gear comprises bevel gear body and is made up of optical axis and splined shaft, the bevel gear body bottom of this drive bevel gear 2 is provided with guide bearing 16; Described differential mechanism and driven wheel of differential assembly comprise connecting bolt 7, differential bearing 8, by dynamic bevel gear 12, differential assembly 13; Described master subtracts adjusting nut 9, bearing cap 10, bolt of bearing cap 11, the locking plate bolt 14 for locking adjusting nut 9, locking plate 15 is installed on housing 6.
The integrated unit bearing master of described bead bearing support subtracts assembly and also includes the drive bevel gear unit bearing 1 that integrates active conical tooth wheel support bearing, bearing support, bead assembly, this drive bevel gear unit bearing 1 comprise play bearing support effect bearing outer ring 101, retainer 102, tapered roller 103, bearing inner race A104, play the effect of bead assembly bearing inner race B105(referring to Fig. 2), described bearing inner race B105 endoporus is the up-small and down-big step hole being made up of splined hole 1051 and counterbore 1052, the upper end of this bearing inner race B105 is provided with bead 1053, described bearing inner race A104 endoporus is arranged on the optical axis of drive bevel gear 2 wheel shafts, the counterbore 1052 of bearing inner race B105 adopts the mode of interference fit to be arranged on the optical axis of drive bevel gear wheel shaft of bearing inner race A104 top, the splined hole 1051 of bearing inner race B is adopted on the splined shaft that splined mode is arranged on drive bevel gear 2 wheel shafts, the top of drive bevel gear 2 wheel shafts is by setting sleeve 4, bead nut 3 is located, locked, described bearing outer ring 101 is enclosed within outside bearing inner race B105, bearing inner race A104, described retainer 102 and tapered roller 103 are installed between the cylindrical of the endoporus of this bearing outer ring 101 and bearing inner race B105, bearing inner race A104, and the periphery of bearing outer ring 101 is fixed on main subtracting on housing 6 by link bolt 5.
Described bearing outer ring 101 endoporus are separately installed with oil sealing 106 at the two ends up and down of tapered roller 103, this bearing outer ring 101 and main subtracting on housing all without being provided with oil duct fluting, make drive bevel gear unit bearing have independently lubrication system, not only be conducive to the integral arrangement of main reducing gear, also improved the main intensity that subtracts housing and bearing outer ring.

Claims (2)

1. the integrated unit bearing master of bead bearing support subtracts assembly, comprise the main housing (6) that subtracts, drive bevel gear (2), differential mechanism and driven wheel of differential assembly, the step-like wheel shaft that described drive bevel gear comprises bevel gear body and is made up of optical axis and splined shaft, described differential mechanism and driven wheel of differential assembly comprise differential bearing (8), by dynamic bevel gear (12), differential assembly (13), it is characterized in that: the integrated unit bearing master of described bead bearing support subtracts assembly and also includes collection active conical tooth wheel support bearing, bearing support, bead assembly is in the drive bevel gear unit bearing (1) of one, this drive bevel gear unit bearing (1) comprises the bearing outer ring (101) that plays bearing support effect, retainer (102), tapered roller (103), bearing inner race A(104), play the bearing inner race B(105 of bead assembly effect), described bearing inner race B(105) endoporus is the up-small and down-big step hole being made up of splined hole (1051) and counterbore (1052), this bearing inner race B(105) upper end be provided with bead (1053), described bearing inner race A(104) endoporus is arranged on the optical axis of drive bevel gear (2) wheel shaft, bearing inner race B(105) counterbore (1052) adopt the mode of interference fit to be arranged on bearing inner race A(104) on the optical axis of the drive bevel gear wheel shaft of top, the splined hole (1051) of bearing inner race B is adopted on the splined shaft that splined mode is arranged on drive bevel gear (2) wheel shaft, the top of drive bevel gear (2) wheel shaft is by setting sleeve (4), bead nut (3) location, locked, described bearing outer ring (101) is enclosed within bearing inner race B(105), bearing inner race A(104) outside, the endoporus of this bearing outer ring (101) and bearing inner race B(105), bearing inner race A(104) cylindrical between described retainer (102) and tapered roller (103) are installed, the periphery of bearing outer ring (101) is fixed on to lead by link and subtracts on housing (6).
2. the integrated unit bearing master of bead bearing support according to claim 1 subtracts assembly, it is characterized in that: the endoporus of described bearing outer ring (101) is separately installed with oil sealing (106) at the two ends up and down of tapered roller (103).
CN201410279874.5A 2014-06-20 2014-06-20 The unit bearing master of bead bearing block integration subtracts assembly Active CN104019213B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410279874.5A CN104019213B (en) 2014-06-20 2014-06-20 The unit bearing master of bead bearing block integration subtracts assembly

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Application Number Priority Date Filing Date Title
CN201410279874.5A CN104019213B (en) 2014-06-20 2014-06-20 The unit bearing master of bead bearing block integration subtracts assembly

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CN104019213A true CN104019213A (en) 2014-09-03
CN104019213B CN104019213B (en) 2016-11-16

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105730228A (en) * 2014-12-10 2016-07-06 东风德纳车桥有限公司 Automobile drive axle speed reducer assembly
CN108916365A (en) * 2018-05-30 2018-11-30 汽解放汽车有限公司 A kind of vehicle bridge retarder lightweight structure
CN108980213A (en) * 2017-06-01 2018-12-11 陕西汉德车桥有限公司 A kind of bearing block
CN109441957A (en) * 2018-11-26 2019-03-08 汽解放汽车有限公司 The active conical tooth wheel assembly of guide bearing is set on a kind of
CN109780179A (en) * 2019-01-08 2019-05-21 一汽解放汽车有限公司 A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment
CN110107603A (en) * 2019-05-16 2019-08-09 万向钱潮传动轴有限公司 A kind of heavy intermediate bead of integrated bearing inner race

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201502682U (en) * 2009-08-21 2010-06-09 方盛车桥（柳州）有限公司 Automobile main reducer assembly
JP2011251668A (en) * 2010-06-04 2011-12-15 Ntn Corp In-wheel type motor drive device
CN202170982U (en) * 2011-07-27 2012-03-21 方盛车桥（柳州）有限公司 Integral main reducer assembly of middle bridge of heavy duty automobile
CN202251870U (en) * 2011-06-09 2012-05-30 六安市强大齿轮有限公司 Primary speed reducer assembly transmission device for tractors more than 5 tons
CN204004316U (en) * 2014-06-20 2014-12-10 方盛车桥（柳州）有限公司 The integrated unit bearing master of bead bearing support subtracts assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201502682U (en) * 2009-08-21 2010-06-09 方盛车桥（柳州）有限公司 Automobile main reducer assembly
JP2011251668A (en) * 2010-06-04 2011-12-15 Ntn Corp In-wheel type motor drive device
CN202251870U (en) * 2011-06-09 2012-05-30 六安市强大齿轮有限公司 Primary speed reducer assembly transmission device for tractors more than 5 tons
CN202170982U (en) * 2011-07-27 2012-03-21 方盛车桥（柳州）有限公司 Integral main reducer assembly of middle bridge of heavy duty automobile
CN204004316U (en) * 2014-06-20 2014-12-10 方盛车桥（柳州）有限公司 The integrated unit bearing master of bead bearing support subtracts assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105730228A (en) * 2014-12-10 2016-07-06 东风德纳车桥有限公司 Automobile drive axle speed reducer assembly
CN105730228B (en) * 2014-12-10 2019-04-05 东风德纳车桥有限公司 A kind of automobile drive axle speed reducer assembly
CN108980213A (en) * 2017-06-01 2018-12-11 陕西汉德车桥有限公司 A kind of bearing block
CN108916365A (en) * 2018-05-30 2018-11-30 汽解放汽车有限公司 A kind of vehicle bridge retarder lightweight structure
CN109441957A (en) * 2018-11-26 2019-03-08 汽解放汽车有限公司 The active conical tooth wheel assembly of guide bearing is set on a kind of
CN109441957B (en) * 2018-11-26 2024-04-19 一汽解放汽车有限公司 Drive bevel gear assembly with upper guide bearing
CN109780179A (en) * 2019-01-08 2019-05-21 一汽解放汽车有限公司 A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment
CN110107603A (en) * 2019-05-16 2019-08-09 万向钱潮传动轴有限公司 A kind of heavy intermediate bead of integrated bearing inner race

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