CN104791450A - Postpositional open-type interaxle differential assembly - Google Patents
Postpositional open-type interaxle differential assembly Download PDFInfo
- Publication number
- CN104791450A CN104791450A CN201510190216.3A CN201510190216A CN104791450A CN 104791450 A CN104791450 A CN 104791450A CN 201510190216 A CN201510190216 A CN 201510190216A CN 104791450 A CN104791450 A CN 104791450A
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- Prior art keywords
- assembly
- bearing
- input
- axle
- input shaft
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- 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.)
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Classifications
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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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
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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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/32—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators
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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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
- F16H2048/104—Differential gearings with gears having orbital motion with orbital spur gears characterised by two ring gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
A postpositional open-type interaxle differential assembly comprises an input axle assembly, a differential lock assembly and an output axle assembly. The input axle assembly comprises an input axle and an input flange, a bearing I, a cylindrical drive gear, a cross axle and a half-rear axle gear which are sequentially arranged on the input axle from front to back, the bearing I is installed in a bearing seat I, and the front end of the bearing seat I is connected with the back end of the input flange; a planet gear is arranged on the cross axle, installed on a planet gear frame and meshed with the cylindrical drive gear and the half-real axle gear, and a bearing II matched with a shell of a main reducer assembly is installed outside the half-rear axle gear; the half-rear axle gear is connected with the differential lock assembly and the output axle assembly. The postpositional open-type interaxle differential assembly has the advantages of being compact in structure, light in weight, low in production cost, long in service life, small in noise and high in transmission efficiency and capable of improving the ride comfort of vehicle driving and reducing the occurrence of the oil leakage phenomenon, and is suitable for the requirements of the high-speed tractor market.
Description
Technical field
The present invention relates to a kind of differential assembly, particularly a kind of rearmounted open type mean differential assembly.
Background technique
Along with the development of Domestic Automotive Industry and the Fast Construction of expressway, improve the mean velocity of automobile, adding load capacity is the effective measures improving productivity of antotransportation, and becomes the trend of contemporary automotive development, causes the increase of engine power thus, this has higher requirement for whole automotive transmission, especially draw semitrailer and require SWB, high-power, high-mechanic, low noise, the performance index such as low oil consumption.
The existing ransaxle product of my company can not meet the property indices of traction semitrailer, existing product is the through main reducer of middle axle assembly of twin-stage, and its mean differential assembly is made up of cylindrical gears shell, inter-axle differential shell planet, differential gear, cross axle, rear differential gear etc.Its shortcoming:
1. complex structure, maintenance difficulty, manufacturability is poor, and manufacture difficulty is large, and cost of production is high.
2. cylindrical gear shell, interaxial differential shell sizes are excessive, cause interaxial differential large, carry little, sexual valence ratio, be unfavorable for tractor integral arrangement.
3. due to outside impulsive load increases along with the raising of automobile driving speed and the increase of road roughness, also increase along with the increase of automobile unsprung weight, this requires that the quality of mean differential also will reduce, and improves the working life of the reliability of automobile, the smoothness of traveling and prolongation automobile.
4. existing product housing is many, and seal point, face are many, and these points that need seal and face need to be coated with sealant sealing, and lubricant oil is seepage very easily; Housing connects by bolton, causes that assembly process is long, cost is high, careless slightlyly just causes mating face leakage of oil.
5. mean differential is preposition, distance oil sump is far away, if do not have lubricant pump, insufficient lubrication, quick abrasion, rate of fault are high, and user's maintenance cost is high.
Summary of the invention
The technical problem to be solved in the present invention is: provide that a kind of compact structure, quality are light, the reliability that can improve automobile, reduce oil leakage phenomenon generation, long service life, rearmounted open type mean differential assembly that noise is little, to be adapted to the demand in high-speed tractor market.
The technological scheme solved the problems of the technologies described above is: a kind of rearmounted open type mean differential assembly, comprises input shaft assembly, differential lock assembly, output shaft assembly; Described input shaft assembly comprises input shaft, is located at input flange on input shaft, bearing I, initiatively cylindrical gears, cross axle, rear differential gear successively from front to back, and described input flange is locked at the forward end of input shaft by fastening piece; Described bearing I is arranged in bearing support I, and the front end of bearing support I is connected with the rear end of input flange by Sealing; Between the front end of described active cylindrical gears and the type conical bench of input shaft, thrust washer is installed, described cross axle is provided with planetary pinion, planetary pinion is arranged on planetary carrier, this planetary pinion is meshed with active cylindrical gears, rear differential gear respectively, is provided with the bearing II matched with the shell of main gearbox assembly outside rear differential gear; This rear differential gear is connected with described differential lock assembly, output shaft assembly respectively.
Further technological scheme of the present invention is: described differential lock assembly comprises declutch shift shaft, shift fork return spring, shift fork, cylinder assembly, slip engaging sleeve, described slip engaging sleeve is arranged on the rear differential gear of input shaft assembly, and this slip engaging sleeve is provided with through fork slot on outer peripheral surface; Described declutch shift shaft is socketed with successively described shift fork return spring, shift fork, cylinder assembly, described shift fork matches with the fork slot of slip engaging sleeve.
Of the present invention more further technological scheme be: described output shaft assembly comprises output shaft, is located at bearing III on output shaft successively, exports flange, described bearing III is arranged in bearing support III, described output flange is by locking nut, washer locking in the end, rear end of output shaft, and the front end of output shaft is connected with the rear end of the rear differential gear of input shaft assembly.
Owing to adopting said structure, the rearmounted open type mean differential assembly of the present invention compared with prior art, has following beneficial effect:
1. compact structure, lightweight:
The present invention includes input shaft assembly, differential lock assembly, output shaft assembly; Wherein input shaft assembly comprises input shaft, is located at input flange on input shaft, bearing I, initiatively cylindrical gears, cross axle, rear differential gear successively from front to back, and cross axle is provided with planetary pinion.Because cross axle and planetary pinion are arranged on after active cylindrical gears, therefore, this mean differential assembly is rear-mounted mean differential assembly; Because the present invention does not include cylindrical gear shell, interaxial differential shell, therefore, this mean differential assembly is also open type mean differential assembly.This rearmounted open type mean differential assembly is compared with original mean differential assembly, have that output shaft is short, total length reduction, compact structure, little, the lightweight feature of volume, wherein output shaft length can reduce about 370mm, and gross weight can reduce about 15kg.
2. can improve the working life of the reliability of automobile, the smoothness of traveling and prolongation automobile:
Owing to present invention omits cylindrical gear shell, interaxial differential shell, the total length of mean differential assembly is reduced, is conducive to tractor integral arrangement; Add car load useful load simultaneously and alleviate own wt, substantially increasing the working life of the reliability of automobile, the smoothness of traveling and prolongation automobile.
3. manufacture simple, cost of production is low, can reduce the generation of oil leakage phenomenon:
Owing to the present invention includes input shaft assembly, differential lock assembly, output shaft assembly, eliminate cylindrical gear shell, interaxial differential shell, therefore it manufactures simple, and cost of production is low; And owing to decreasing product shell, decrease the point of sealing, face, thus decrease the generation of oil leakage phenomenon.
4. long service life, maintenance is convenient:
Because the present invention adopts rear-mounted mean differential assembly, distance oil sump is nearer; Do not need lubricant pump to lubricate, rotated by tooth as long as vehicle travels, just got rid of oil by tooth and lubricate, its wearing and tearing less, failure rate is low, long service life, maintenance is convenient.
5. noise is little, and transmission efficiency is high:
Because the present invention adopts input shaft structure, can intensity be improved, make gear transmission work more steadily, noise free, transmission efficiency is high, is adapted to the demand in high-speed tractor market.
Below, in conjunction with the accompanying drawings and embodiments the technical characteristics of the rearmounted open type mean differential assembly of the present invention is further described.
Accompanying drawing explanation
Fig. 1: the structural representation of the rearmounted open type mean differential assembly of the present invention;
Fig. 2: the structural representation of input shaft assembly described in embodiment one;
Fig. 3: the structural representation of differential lock assembly described in embodiment one;
Fig. 4: the structural representation of output shaft assembly described in embodiment one;
Fig. 5: the rearmounted open type mean differential assembly of the present invention is arranged on the main structural representation subtracted on assembly;
Fig. 6: the rearmounted open type mean differential assembly of the present invention is arranged on the structural representation on heavy Ka Shuanqudongqiao;
Fig. 7: the structural representation of existing mean differential assembly.
In above-mentioned accompanying drawing, each label declaration is as follows:
1-input shaft assembly,
101-input flange, 102-oil sealing, 103-O type circle, 104-bearing I, 105-is cylindrical gears initiatively,
106-bolt, 107-packing ring, differential gear after 108-, 109-input shaft, 110-bearing II,
111-planetary carrier, 112-cross axle, 113-pad, 114-planetary pinion, 115-thrust washer,
116-bearing support I, 117-locking nut, 118-packing ring;
2-differential lock assembly,
201-declutch shift shaft, 202-shift fork return spring, 203-shift fork, 204-cylinder assembly, 205-slip engaging sleeve,
3-output shaft assembly,
301-output shaft, 302-bearing support III, 303-bearing III, 304-adjustment packing ring, 305-oil sealing,
306-exports flange, 307-locking nut, 308-packing ring, Q-front to, H-rear to.
Embodiment
Embodiment one:
A kind of rearmounted open type mean differential assembly, comprises input shaft assembly 1, differential lock assembly 2, output shaft assembly 3; Described input shaft assembly 1 comprises input shaft 109, is located at input flange 101 on input shaft 109, bearing I 104, initiatively cylindrical gears 105, cross axle 112, rear differential gear 108 successively from front to back, and described input flange 101 is locked at the forward end of input shaft 109 by fastening piece locking nut 117, packing ring 118; Described bearing I 104 is arranged in bearing support I 116, and the front end of bearing support I 116 is connected with the rear end of input flange 101 by Sealing oil sealing 102, bearing support I 116 is also provided with O type circle 103; Between the front end of described active cylindrical gears 105 and the type conical bench of input shaft, thrust washer 115 is installed, described cross axle 112 is provided with planetary pinion 114, planetary pinion 114 is arranged on planetary carrier 111, and planetary carrier 111 is connected with cross axle 112 by bolt 106, packing ring 107; Described planetary pinion 114 is meshed with active cylindrical gears 105, rear differential gear 108 respectively, is provided with the bearing II 110 matched with the shell of main gearbox assembly outside rear differential gear 108.
Described differential lock assembly 2 comprises declutch shift shaft 201, shift fork return spring 202, shift fork 203, cylinder assembly 204, slip engaging sleeve 205, described slip engaging sleeve 205 is arranged on the rear differential gear 108 of input shaft assembly 1, and this slip engaging sleeve 205 is provided with through fork slot on outer peripheral surface; Described declutch shift shaft 201 is socketed with described shift fork return spring 202, shift fork 203, cylinder assembly 204 successively, and described shift fork 203 matches with the fork slot of slip engaging sleeve 205.
Described output shaft assembly 3 comprises output shaft 301, is located at bearing III 303 on output shaft 301 successively, exports flange 306, described bearing III 303 is arranged in bearing support III 302, described output flange 306 is locked at the end, rear end of output shaft 301 by locking nut 307, packing ring 308, and the front end of output shaft 301 is connected with the rear end of the rear differential gear 108 of input shaft assembly 1.
The present invention is arranged on initiatively after cylindrical gears due to cross axle and planetary pinion, and therefore, this mean differential assembly is rear-mounted mean differential assembly; Present invention omits cylindrical gear shell, interaxial differential shell, therefore, this mean differential assembly is also open type mean differential assembly, it does not need lubricant pump to lubricate, as long as vehicle travel rotated by tooth, just got rid of oil by tooth and lubricate, its wearing and tearing less, failure rate is low, long service life, maintenance is convenient.
Claims (3)
1. a rearmounted open type mean differential assembly, is characterized in that: comprise input shaft assembly (1), differential lock assembly (2), output shaft assembly (3); Described input shaft assembly (1) comprises input shaft (109), is located at input flange (101) on input shaft (109), bearing I (104), initiatively cylindrical gears (105), cross axle (112), rear differential gear (108) successively from front to back, and described input flange (101) is locked at the forward end of input shaft (109) by fastening piece; Described bearing I (104) is arranged in bearing support I (116), and the front end of bearing support I (116) is connected by the rear end of Sealing with input flange (101); Between the front end of described active cylindrical gears (105) and the type conical bench of input shaft, thrust washer (115) is installed, described cross axle (112) is provided with planetary pinion (114), planetary pinion (114) is arranged on planetary carrier (111), this planetary pinion (114) is meshed with active cylindrical gears (105), rear differential gear (108) respectively, is provided with the bearing II (110) matched with the shell of main gearbox assembly outside rear differential gear (108); This rear differential gear (108) is connected with described differential lock assembly (2), output shaft assembly (3) respectively.
2. rearmounted open type mean differential assembly according to claim 1, it is characterized in that: described differential lock assembly (2) comprises declutch shift shaft (201), shift fork return spring (202), shift fork (203), cylinder assembly (204), slip engaging sleeve (205), described slip engaging sleeve (205) is arranged on the rear differential gear (108) of input shaft assembly (1), and this slip engaging sleeve (205) is provided with through fork slot on outer peripheral surface; Described declutch shift shaft (201) is socketed with described shift fork return spring (202), shift fork (203), cylinder assembly (204) successively, and described shift fork (203) matches with the fork slot of slip engaging sleeve (205).
3. rearmounted open type mean differential assembly according to claim 1 and 2, it is characterized in that: described output shaft assembly (3) comprises output shaft (301), be located at the bearing III (303) on output shaft (301) successively, export flange (306), described bearing III (303) is arranged in bearing support III (302), described output flange (306) is by locking nut (307), packing ring (308) is locked at the end, rear end of output shaft (301), the front end of output shaft (301) is connected with the rear end of the rear differential gear (108) of input shaft assembly (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190216.3A CN104791450A (en) | 2015-04-16 | 2015-04-16 | Postpositional open-type interaxle differential assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190216.3A CN104791450A (en) | 2015-04-16 | 2015-04-16 | Postpositional open-type interaxle differential assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104791450A true CN104791450A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190216.3A Pending CN104791450A (en) | 2015-04-16 | 2015-04-16 | Postpositional open-type interaxle differential assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN104791450A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757884A (en) * | 2018-07-04 | 2018-11-06 | 汽解放汽车有限公司 | A kind of lightweight commercial car main reducer of middle axle assembly |
| CN109017291A (en) * | 2018-07-27 | 2018-12-18 | 汽解放汽车有限公司 | A kind of penetrating bridge main speed reducer assembly |
| CN110056635A (en) * | 2018-01-18 | 2019-07-26 | 美国轮轴制造公司 | Power train part |
| CN110486441A (en) * | 2019-08-13 | 2019-11-22 | 一汽解放汽车有限公司 | A kind of shaft space difference speed lock construction |
| CN111853075A (en) * | 2020-07-17 | 2020-10-30 | 方盛车桥（柳州）有限公司 | Transmission shaft torque sensor and mounting method |
| CN114893547A (en) * | 2022-05-23 | 2022-08-12 | 一汽解放汽车有限公司 | Through bridge speed reducer assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10148250A (en) * | 1996-11-20 | 1998-06-02 | Tochigi Fuji Ind Co Ltd | Differential gear |
| CN2839737Y (en) * | 2005-10-24 | 2006-11-22 | 株洲齿轮有限责任公司 | Transfer case with parallel-axis planetary gear type helical gear limited slip differential |
| CN201731038U (en) * | 2010-07-16 | 2011-02-02 | 一拖(洛阳)开创装备科技有限公司 | Hydraulic Shift fork type steel ball locking differential lock for drive axle |
| 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 |
| CN202242976U (en) * | 2011-09-26 | 2012-05-30 | 诸城福田汽车科技开发有限公司 | Double reduction through bridge assembly |
| CN204061795U (en) * | 2014-06-20 | 2014-12-31 | 山东临工工程机械有限公司 | Loader-digger hydraulic differential is locked |
| CN204716913U (en) * | 2015-04-16 | 2015-10-21 | 方盛车桥（柳州）有限公司 | Rearmounted open type mean differential assembly |
-
2015
- 2015-04-16 CN CN201510190216.3A patent/CN104791450A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10148250A (en) * | 1996-11-20 | 1998-06-02 | Tochigi Fuji Ind Co Ltd | Differential gear |
| CN2839737Y (en) * | 2005-10-24 | 2006-11-22 | 株洲齿轮有限责任公司 | Transfer case with parallel-axis planetary gear type helical gear limited slip differential |
| CN201731038U (en) * | 2010-07-16 | 2011-02-02 | 一拖(洛阳)开创装备科技有限公司 | Hydraulic Shift fork type steel ball locking differential lock for drive axle |
| 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 |
| CN202242976U (en) * | 2011-09-26 | 2012-05-30 | 诸城福田汽车科技开发有限公司 | Double reduction through bridge assembly |
| CN204061795U (en) * | 2014-06-20 | 2014-12-31 | 山东临工工程机械有限公司 | Loader-digger hydraulic differential is locked |
| CN204716913U (en) * | 2015-04-16 | 2015-10-21 | 方盛车桥（柳州）有限公司 | Rearmounted open type mean differential assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056635A (en) * | 2018-01-18 | 2019-07-26 | 美国轮轴制造公司 | Power train part |
| CN108757884A (en) * | 2018-07-04 | 2018-11-06 | 汽解放汽车有限公司 | A kind of lightweight commercial car main reducer of middle axle assembly |
| CN109017291A (en) * | 2018-07-27 | 2018-12-18 | 汽解放汽车有限公司 | A kind of penetrating bridge main speed reducer assembly |
| CN110486441A (en) * | 2019-08-13 | 2019-11-22 | 一汽解放汽车有限公司 | A kind of shaft space difference speed lock construction |
| CN111853075A (en) * | 2020-07-17 | 2020-10-30 | 方盛车桥（柳州）有限公司 | Transmission shaft torque sensor and mounting method |
| CN111853075B (en) * | 2020-07-17 | 2023-01-06 | 方盛车桥（柳州）有限公司 | Transmission shaft torque sensor and mounting method |
| CN114893547A (en) * | 2022-05-23 | 2022-08-12 | 一汽解放汽车有限公司 | Through bridge speed reducer assembly |
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Application publication date: 20150722 |
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