CN111237427A - Automatic limited slip differential assembly and drive axle with same - Google Patents

Automatic limited slip differential assembly and drive axle with same Download PDF

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Publication number
CN111237427A
CN111237427A CN202010209154.7A CN202010209154A CN111237427A CN 111237427 A CN111237427 A CN 111237427A CN 202010209154 A CN202010209154 A CN 202010209154A CN 111237427 A CN111237427 A CN 111237427A
Authority
CN
China
Prior art keywords
shell
differential
limited slip
assembly
gear
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
CN202010209154.7A
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Chinese (zh)
Inventor
李兴龙
许国林
雷印忠
谭雪
武海防
张传岭
邱伟
魏庆余
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.)
Taian Jiuzhou Jincheng Machinery Co ltd
Original Assignee
Taian Jiuzhou Jincheng 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 Taian Jiuzhou Jincheng Machinery Co ltd filed Critical Taian Jiuzhou Jincheng Machinery Co ltd
Priority to CN202010209154.7A priority Critical patent/CN111237427A/en
Priority to RU2020114182A priority patent/RU2735561C1/en
Publication of CN111237427A publication Critical patent/CN111237427A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/38Constructional details
    • F16H48/40Constructional details characterised by features of the rotating cases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12Torque-transmitting axles
    • B60B35/14Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12Torque-transmitting axles
    • B60B35/16Axle housings
    • B60B35/163Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/06Differential gearings with gears having orbital motion
    • F16H48/08Differential gearings with gears having orbital motion comprising bevel gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/20Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/24Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/38Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/38Constructional details
    • F16H48/40Constructional details characterised by features of the rotating cases
    • F16H2048/405Constructional details characterised by features of the rotating cases characterised by features of the bearing of the rotating case

Abstract

The invention discloses an automatic limited slip differential assembly and a drive axle with the same, wherein the limited slip differential comprises a differential big shell, a differential small shell, a left shell, a right shell, a differential shaft, a half axle gear, a planetary bevel gear set, a bevel gear gasket and a friction plate; the drive axle with the limited slip differential assembly further comprises a drive axle shell welding assembly, a left half shaft, a right half shaft and a main power reduction transmission component. The automatic limited slip differential provided by the invention adopts the combination of two hasp type differential shafts, so that the anti-abrasion effect of the gear can be enhanced; the inner and outer tooth slotted friction plates which are arranged in a crossed manner are arranged, so that friction loss is prevented, left and right power output can be automatically and evenly distributed, the anti-skid effect is improved, and the service life is prolonged; the power distribution device can be applied to a drive axle of mechanical equipment such as a high-horsepower tractor and a loader, can adapt to power of 180 plus 240 horsepower, automatically and evenly distributes power in an anti-skidding process, does not need manual operation, and has good anti-skidding and power transmission effects and long service life.

Description

Automatic limited slip differential assembly and drive axle with same
Technical Field
The invention relates to the technical field of differentials, in particular to an automatic limited slip differential assembly and a drive axle with the same.
Background
A differential for a vehicle is a mechanism that enables left and right (or front and rear) drive wheels to rotate at different rotational speeds. Mainly comprises a left half shaft gear, a right half shaft gear, two planet gears and a gear carrier. The function is that when the automobile turns or runs on an uneven road surface, the left wheel and the right wheel roll at different rotating speeds, namely, the pure rolling motion of the driving wheels at two sides is ensured. The differential is provided for adjusting the difference in the rotational speeds of the left and right wheels. In four-wheel drive, all the wheels must be connected to drive four wheels, if the four wheels are mechanically connected, the vehicle cannot rotate at the same speed when the vehicle runs on a curve, and in order to make the curve running rotation speed of the vehicle substantially consistent, an intermediate differential is added to adjust the rotation speed difference between the front wheel and the rear wheel.
Mechanical equipment such as a high-horsepower agricultural tractor and an engineering loader is widely used, and the requirements on power transmission and service life of a differential are higher in order to enhance the passing performance of the mechanical equipment under the conditions of severe working environment and large load.
Therefore, a need exists in the art for an automatic limited slip differential assembly and a drive axle having the same that has high throughput, easy operation, and enhanced wear prevention and usability.
Disclosure of Invention
In view of the above, the present invention provides an automatic limited slip differential assembly, which aims to solve the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic limited slip differential assembly comprising: the differential mechanism comprises a large differential mechanism shell, a small differential mechanism shell, a left shell, a right shell, a differential shaft, a half axle gear, a planetary bevel gear set, a bevel gear gasket and a friction plate;
the large differential shell and the small differential shell are both of annular cylindrical structures and are hermetically butted to form an integral cylindrical structure, and fixing holes with crossed axes are formed in the butted position of the cylindrical structures;
the left shell is fixed at the opening end of the large differential shell in a sealing manner; the right shell is fixed at the opening end of the small differential shell in a sealing manner; the left shell and the right shell are provided with coaxial mounting holes, and the axes of the mounting holes are superposed with the axes of the large differential shell and the small differential shell;
the number of the differential shafts is two, the cross hasps are arranged, and the end heads of the two differential shafts are clamped and fixed in the corresponding fixing holes;
the number of the half shaft gears is two, and tooth surfaces of the half shaft gears are oppositely arranged in the left shell and the right shell and are respectively coaxially and rotatably connected with the left shell and the right shell;
the planetary bevel gear set is rotationally connected to the differential shaft and meshed with the half axle gear;
the bevel gear gasket is sleeved on the differential shaft and is positioned between the planetary bevel gear set and the fixed hole; the number of the bevel gear gaskets is 4, and the bevel gear gaskets are matched with the outer end face of the planetary bevel gear set;
the friction plates are sleeved on the axial surface of the half axle gear in a staggered mode and are respectively arranged between the end surface of the half axle gear and the inner end surface of the left shell and between the end surface of the half axle gear and the inner end surface of the right shell in a padded mode.
Through the technical scheme, the automatic limited slip differential provided by the invention adopts the combination of the two hasp type differential shafts, so that the anti-abrasion effect of the gear can be enhanced; the inner and outer tooth slotted friction plates which are arranged in a crossed manner are arranged, so that friction loss is prevented, left and right power output can be automatically and evenly distributed, the anti-skid effect is improved, and the service life is prolonged; the differential power transmission gear adopts a larger pressure angle, not only can transmit a large torque, but also can maximally distribute left and right output power. The power of 180 plus 240 horsepower can be adapted, the power is automatically and evenly distributed in the anti-skidding process, manual operation is not needed, the anti-skidding and power transmission effects are good, and the service life is long.
Preferably, in an automatic limited slip differential assembly as described above, said friction plates include outer teeth friction plates and inner teeth friction plates; the outer tooth friction disc with the inner tooth friction disc is staggered arrangement in proper order, and the outside the outer tooth friction disc with the terminal surface laminating of differential side gear, the outside the inner tooth friction disc with left side casing or the laminating of the interior terminal surface of right side casing. Through setting up rigidity fluting structure's external tooth friction disc and internal tooth friction disc, make its staggered arrangement, further improved the performance of antiskid, abrasionproof decreases, excellent in use effect.
Preferably, in the above-mentioned automatic limited slip differential assembly, the left and right cavities of the outer tooth friction plate and the inner tooth friction plate in each set of the friction plates are both two. Can meet the use requirement.
Preferably, in the above automatic limited slip differential assembly, the outer tooth friction plate is of an outer tooth structure, and the inner tooth friction plate is of an inner tooth structure; the matching surface of the outer tooth friction plate and the inner tooth friction plate is of a rigid slotted structure. Can satisfy the user demand, further improve limit slip effect.
Preferably, in the above automatic limited slip differential assembly, four accommodating grooves for fitting with bevel gear gaskets are formed in the circumferential direction of the inner diameters of the large differential case and the small differential case. The holding tank cooperation bevel gear gasket prevents gear and inner circle friction loss.
Preferably, in the above automatic limited slip differential assembly, the bevel gear spacer has a square structure and a groove is formed in the surface thereof. The groove can be used for fixing a square bevel gear gasket, so that friction loss between the planetary bevel gear combination and the inner ends of the large differential case and the small differential case is prevented.
Preferably, in the above-mentioned automatic limited slip differential assembly, the outer circumferential surface of the differential case has a protruding flange plate for fixedly connecting with a large gear plate for power transmission. Is convenient to be fixedly connected with the large gear plate.
Preferably, in the above-mentioned automatic limited slip differential assembly, the left casing, the large differential casing, the small differential casing and the right casing are integrally and tightly connected by bolts and nuts, and the nuts are locked by locking plates. The connection is simple, reliable and stable in structure.
The invention also provides a drive axle with the limited slip differential assembly, which comprises a drive axle shell welding assembly, a left half shaft, a right half shaft and a main power reduction transmission component;
the drive axle shell welding assembly is of a long rod cavity structure with a spherical bulge in the middle, two connecting discs for connecting and installing with a mechanical equipment frame are cast on the drive axle shell welding assembly, wheel edge supporting shafts are welded at two ends of the drive axle shell welding assembly, and a wheel edge power transmission assembly and a wheel edge braking assembly are installed on the wheel edge supporting shafts; the limited slip differential assembly is arranged in the middle of a cavity of the drive axle housing welding assembly;
one end of the left half shaft penetrates through the mounting hole of the left shell to be fixedly connected with the half shaft gear close to the left shell, and the other end of the left half shaft is in transmission connection with the wheel-side power transmission assembly;
one end of the right half shaft penetrates through the mounting hole of the right shell to be fixedly connected with the half shaft gear close to the right shell, and the other end of the right half shaft is in transmission connection with the wheel-side power transmission assembly;
and the main power reducing transmission assembly is in transmission connection with a flange plate on the outer side of the differential mechanism large shell through a large gear plate.
Through the technical scheme, the drive axle with the automatic limited slip differential provided by the invention can be applied to drive axles of mechanical equipment such as high-horsepower tractors and loaders, and solves the problems of poor performance of the mechanical equipment, weak power transmission of the differential and short service life under the conditions of severe working environment and large load.
Through the technical scheme, compared with the prior art, the invention discloses the automatic limited slip differential assembly and the drive axle with the same, and the automatic limited slip differential assembly has the following beneficial effects:
1. the automatic limited slip differential provided by the invention adopts the combination of two hasp type differential shafts, so that the anti-abrasion effect of the gear can be enhanced; the inner and outer tooth slotted friction plates which are arranged in a crossed manner are arranged, so that friction loss is prevented, left and right power output can be automatically and evenly distributed, the anti-skid effect is improved, and the service life is prolonged; the differential power transmission gear adopts a larger pressure angle, not only can transmit a large torque, but also can maximally and equally distribute left and right output power. The power of 180 plus 240 horsepower can be adapted, the power is automatically and evenly distributed in the anti-skidding process, manual operation is not needed, the anti-skidding and power transmission effects are good, and the service life is long.
2. According to the invention, the outer tooth friction plates and the inner tooth friction plates are arranged in a staggered manner, so that the performances of skid resistance and abrasion resistance are further improved, and the using effect is good.
3. The drive axle with the automatic limited slip differential provided by the invention can be applied to mechanical equipment such as a high-horsepower tractor, a loader and the like, overcomes the problem that the differential is easily abraded due to the large load, impact load and drive horsepower of various heavy mechanical equipment, and improves the service performance and service life of the drive axle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic illustration of a limited slip differential assembly according to the present invention;
FIG. 2 is a schematic illustration of a drive axle having a limited slip differential assembly according to the present invention.
Wherein:
1-differential large shell;
2-a differential small shell;
3-a left shell;
4-right shell;
5-a differential shaft;
6-half shaft gear;
7-a planetary bevel gear;
8-friction plate;
9-fixing holes;
10-mounting holes;
11-an external tooth friction plate;
12-internal tooth friction plate;
13-accommodating grooves;
14-bevel gear shims;
15-a flange plate;
16-bolt;
17-a nut;
18-a drive axle housing weld assembly;
19-left half shaft;
20-right half shaft;
21-a large gear plate;
22-a main power reduction transmission assembly;
23-connecting disc
24-a wheel-rim power transfer assembly;
25-a wheel-side brake assembly;
26-wheel edge supporting shaft;
27-locking piece.
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.
Example 1:
the embodiment of the invention discloses an automatic limited slip differential assembly, which comprises: a differential large shell 1, a differential small shell 2, a left shell 3, a right shell 4, a differential shaft 5, a half axle gear 6, a planetary bevel gear set 7, a bevel gear gasket 14 and a friction plate 8;
the differential mechanism large shell 1 and the differential mechanism small shell 2 are both in an annular cylindrical structure, are in an integral cylindrical structure in a sealing butt joint mode, and are provided with fixing holes 9 with crossed axes at the butt joint position;
the left shell 3 is fixed at the opening end of the differential mechanism big shell 1 in a sealing way; the right shell 4 is fixed at the opening end of the small differential shell 2 in a sealing way; the left shell 3 and the right shell 4 are provided with coaxial mounting holes 10, and the axes of the mounting holes 10 are superposed with the axes of the differential large shell 1 and the differential small shell 2;
the number of the differential shafts 5 is two, the cross hasps are arranged, and the end heads of the two differential shafts 5 are clamped and fixed in the corresponding fixing holes 9;
the number of the half shaft gears 6 is two, and tooth surfaces of the half shaft gears are oppositely arranged in the left shell 3 and the right shell 4 and are respectively coaxially and rotatably connected with the left shell 3 and the right shell 4;
the planetary bevel gear set 7 is rotationally connected to the differential shaft 5 and meshed with the half shaft gear 6;
the bevel gear gasket 14 is sleeved on the differential shaft 5 and is positioned between the planetary bevel gear set 7 and the fixed hole 9;
the friction plates 8 are provided in plural numbers, are alternately fitted on the axial surface of the side gear 6, and are respectively fitted between the end surface of the side gear 6 and the inner end surface of the left casing 3, and between the end surface of the side gear 6 and the inner end surface of the right casing 4.
In order to further optimize the technical scheme, the friction plates 8 comprise outer tooth friction plates 11 and inner tooth friction plates 12; the outer tooth friction plates 11 and the inner tooth friction plates 12 are sequentially arranged in a staggered manner, the outer tooth friction plates 11 on the outer side are attached to the end face of the half shaft gear 6, and the inner tooth friction plates 12 on the outer side are attached to the inner end face of the left shell 3 or the right shell 4.
In order to further optimize the technical scheme, the outer tooth friction plates 11 and the inner tooth friction plates 12 in each group of friction plates 8 are two.
In order to further optimize the technical scheme, the external tooth friction plate 11 is of an external tooth structure, and the internal tooth friction plate 12 is of an internal tooth structure; the matching surfaces of the outer tooth friction plate 11 and the inner tooth friction plate 12 are in a rigid slotted structure.
In order to further optimize the technical scheme, four accommodating grooves 13 used for being matched with bevel gear gaskets 14 are formed in the circumferential direction of the inner diameters of the large differential case 1 and the small differential case 2.
In order to further optimize the above technical solution, the bevel gear spacer 14 has a square structure and a groove is formed on the surface thereof.
In order to further optimize the above solution, the differential case 1 has a projecting flange 15 on its outer circumferential surface for fixed connection to a power transmission large gear plate 21.
In order to further optimize the technical scheme, the left shell 3, the differential large shell 1, the differential small shell 2 and the right shell 4 are integrally and tightly connected through bolts 16 and nuts 17, and the nuts 17 are locked through locking plates 27.
Example 2:
the embodiment of the invention discloses a drive axle with a limited slip differential assembly, which comprises a drive axle housing welding assembly 18, a left half shaft 19, a right half shaft 20 and a main reducing power transmission assembly 22;
the drive axle housing welding assembly 18 is a long rod cavity structure with a spherical bulge in the middle, two connecting discs 23 used for connecting and installing with a mechanical equipment frame are cast on the drive axle housing welding assembly 18, wheel-side supporting shafts 26 are welded at two ends of the drive axle housing welding assembly 18, and wheel-side power transmission components 24 and wheel-side brake assemblies 25 are installed on the wheel-side supporting shafts 26; the limited slip differential assembly is arranged in the middle of a cavity of the drive axle housing welding assembly 18;
one end of a left half shaft 19 penetrates through the mounting hole 10 of the left shell 3 to be fixedly connected with a half shaft gear 6 close to the left shell 3, and the other end of the left half shaft is in transmission connection with a wheel-side power transmission assembly 24;
one end of a right half shaft 20 passes through the mounting hole 10 of the right shell 4 and is fixedly connected with a half shaft gear 6 close to the right shell 4, and the other end of the right half shaft is in transmission connection with a wheel-side power transmission assembly 24;
the main power reducing transmission assembly 22 is in transmission connection with the flange plate 15 on the outer side of the differential large shell 1 through a large gear plate 21.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. An automatic limited slip differential assembly, comprising: a differential large shell (1), a differential small shell (2), a left shell (3), a right shell (4), a differential shaft (5), a half axle gear (6), a planetary bevel gear set (7), a bevel gear gasket (14) and a friction plate (8);
the differential mechanism large shell (1) and the differential mechanism small shell (2) are both in an annular cylindrical structure and are in sealed butt joint to form an integral cylindrical structure, and fixing holes (9) with crossed axes are formed in the butt joint position of the cylindrical structures;
the left shell (3) is fixed at the opening end of the differential large shell (1) in a sealing manner; the right shell (4) is fixed at the opening end of the small differential shell (2) in a sealing way; the left shell (3) and the right shell (4) are provided with coaxial mounting holes (10), and the axes of the mounting holes (10) are superposed with the axes of the differential large shell (1) and the differential small shell (2);
the number of the differential shafts (5) is two, the cross hasps are arranged, and the end heads of the two differential shafts (5) are clamped and fixed in the corresponding fixing holes (9);
the number of the half shaft gears (6) is two, and tooth surfaces of the half shaft gears are oppositely arranged in the left shell (3) and the right shell (4) and are respectively connected with the left shell (3) and the right shell (4) in a coaxial and rotating manner;
the planetary bevel gear set (7) is rotationally connected to the differential shaft (5) and meshed with the side gear (6);
the bevel gear gasket (14) is sleeved on the differential shaft (5) and is positioned between the planetary bevel gear set (7) and the fixing hole (9);
the friction plates (8) are arranged in a plurality of numbers, are sleeved on the axial surface of the half axle gear (6) in a staggered mode, and are respectively arranged between the end surface of the half axle gear (6) and the inner end surface of the left shell (3) in a padded mode and between the end surface of the half axle gear (6) and the inner end surface of the right shell (4) in a padded mode.
2. An automatic limited slip differential assembly according to claim 1, wherein the friction plates (8) comprise an outer teeth friction plate (11) and an inner teeth friction plate (12); outer tooth friction disc (11) with inner tooth friction disc (12) are staggered arrangement in proper order, and the outside outer tooth friction disc (11) with the terminal surface laminating of side gear (6), the outside inner tooth friction disc (12) with left side casing (3) or the interior terminal surface laminating of right side casing (4).
3. An automatic limited slip differential assembly according to claim 2, wherein the outer (11) and inner (12) friction plates of each set of friction plates (8) are two.
4. An automatic limited slip differential assembly according to claim 2 or 3, characterized in that the outer teeth friction plate (11) is of outer teeth configuration and the inner teeth friction plate (12) is of inner teeth configuration; and the matching surfaces of the outer tooth friction plate (11) and the inner tooth friction plate (12) are in rigid slotted structures.
5. The automatic limited slip differential assembly according to claim 1, wherein four receiving grooves (13) for matching with bevel gear washers (14) are formed in the circumferential direction of the inner diameters of the large differential case (1) and the small differential case (2).
6. An automatic limited slip differential assembly according to claim 1 or 5, wherein the bevel gear spacer (14) is of square configuration and is grooved in its surface.
7. An automatic limited slip differential assembly according to claim 1, wherein the outer circumferential surface of the differential case (1) has a projecting flange (15) for fixed connection with a bull gear plate (21) of a main power transmission reduction element (22).
8. An automatic limited slip differential assembly according to claim 1, characterized in that the left case (3), the large differential case (1), the small differential case (2) and the right case (4) are integrally and tightly connected by bolts (16) and nuts (17), and the nuts (17) are locked by locking plates (27).
9. A drive axle having a limited slip differential assembly according to any one of claims 1-8, comprising a drive axle housing weld assembly (18), a left axle half shaft (19), a right axle half shaft (20), and a main reduction power transfer assembly (22);
the drive axle shell welding assembly (18) is of a long rod cavity structure with a spherical bulge in the middle, two connecting discs (23) used for being connected and installed with a mechanical equipment frame are cast on the drive axle shell welding assembly (18), wheel edge supporting shafts (26) are welded at two ends of the drive axle shell welding assembly (18), and a wheel edge power transmission assembly (24) and a wheel edge braking assembly (25) are installed on the wheel edge supporting shafts (26); the limited slip differential assembly is arranged in the middle of a cavity of the drive axle housing welding assembly (18);
one end of the left half shaft (19) penetrates through a mounting hole (10) of the left shell (3) and is fixedly connected with the half shaft gear (6) close to the left shell (3), and the other end of the left half shaft is in transmission connection with the wheel-side power transmission assembly (24);
one end of the right half shaft (20) penetrates through the mounting hole (10) of the right shell (4) to be fixedly connected with the half shaft gear (6) close to the right shell (4), and the other end of the right half shaft is in transmission connection with the wheel-side power transmission assembly (24);
and the main power reducing transmission assembly (22) is in transmission connection with a flange plate (15) on the outer side of the differential mechanism large shell (1) through a large gear plate (21).
CN202010209154.7A 2020-03-23 2020-03-23 Automatic limited slip differential assembly and drive axle with same Pending CN111237427A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010209154.7A CN111237427A (en) 2020-03-23 2020-03-23 Automatic limited slip differential assembly and drive axle with same
RU2020114182A RU2735561C1 (en) 2020-03-23 2020-04-20 Automatic limited slip differential assembly and driving axle having such a knot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010209154.7A CN111237427A (en) 2020-03-23 2020-03-23 Automatic limited slip differential assembly and drive axle with same

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Publication Number Publication Date
CN111237427A true CN111237427A (en) 2020-06-05

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Family Applications (1)

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Country Status (2)

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CN (1) CN111237427A (en)
RU (1) RU2735561C1 (en)

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