CN112096824A - Differential lock suitable for front, middle and rear of four-wheel drive vehicle - Google Patents
Differential lock suitable for front, middle and rear of four-wheel drive vehicle Download PDFInfo
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- CN112096824A CN112096824A CN202010969635.8A CN202010969635A CN112096824A CN 112096824 A CN112096824 A CN 112096824A CN 202010969635 A CN202010969635 A CN 202010969635A CN 112096824 A CN112096824 A CN 112096824A
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- differential lock
- locking
- gear
- lock shell
- output
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- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a differential lock applicable to front, middle and rear of a four-wheel drive vehicle, which comprises a first differential lock shell, a second differential lock shell, a cylindrical gear, a first output half shaft gear, a second output half shaft gear, a locking plug sleeve and a locking combination sleeve, wherein the first differential lock shell and the second differential lock shell are arranged oppositely; one end of the front half axle gear, which is close to the front differential shell, is provided with an output half axle internal spline forwards, and the other end of the front half axle gear is provided with a connecting spline backwards; the invention ingeniously uses 6 cylindrical gears, two ends of the cylindrical gears are arranged in the differential lock shell to drive the front half-axle output gear and the rear half-axle output gear to rotate and also to perform differential operation, the locking combination sleeve is connected with the two output half-axle gears, and the locking combination sleeve is moved by external force to be combined with the other output half-axle gear to form hard link, thereby achieving the purpose of locking.
Description
Technical Field
The invention relates to the field of differential locks, in particular to a differential lock applicable to front, middle and rear of a four-wheel drive vehicle.
Background
Most are the multi-disc formula separation and reunion differential lock that a large amount of four-wheel drive cars used in the existing market, and the condition of generating heat, burning clutch disc can appear when cross country in this kind of differential lock, and in addition, the car of the pure mechanical differential lock of import and import differential lock add one extremely high, consequently, the design one excellent performance, reliable quality, low cost, be applicable to the differential lock before, during, after the four-wheel drive is the problem that technical personnel urgently need to solve in the relevant field.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a differential lock applicable to front, middle and rear of a four-wheel drive vehicle comprises a first differential lock shell, a second differential lock shell, a cylindrical gear, a first output half shaft gear, a second output half shaft gear, a locking plug sleeve and a locking combination sleeve, wherein the first differential lock shell and the second differential lock shell are arranged oppositely; one end of the front half axle gear, which is close to the front differential shell, is forwards provided with an output half axle internal spline, the other end of the front half axle gear is backwards provided with a connecting spline, the locking combination sleeve is sleeved at one end of the first output half axle gear, which is provided with a connecting spline, the inside of the first output half axle gear is provided with a connecting internal spline matched with the connecting spline, the other end of the locking combination sleeve is backwards provided with a locking spline, the locking pull-plug sleeve is sleeved outside the locking combination sleeve, one side of the locking pull-plug sleeve, which is close to the first differential lock shell, is forwards provided with a push rod connected with the first differential lock shell, the inside of one end of the second output half axle gear is provided with a locking spline tooth corresponding to the locking combination sleeve, the other end of the second output half axle gear is provided with an output internal spline, the cylindrical gear is meshed outside the front half axle gear and, and the ejector rod on the locking pulling and inserting sleeve extends out of the differential lock shell and then is connected with the locking push disc.
As an improvement, the cylindrical gears are externally provided with external teeth which are meshed with the first output half-shaft gear and the second output half-shaft gear, the number of the cylindrical gears is six, every two cylindrical gears are in one group, the cylindrical gears in each group are arranged in a staggered mode, so that one cylindrical gear is only meshed with the first output half-shaft gear, the other cylindrical gear is only meshed with the second output half-shaft gear, and the two cylindrical gears in each group are meshed with each other.
As an improvement, the inner sections of the first differential lock shell and the second differential lock shell are respectively provided with a first ejector rod hole and a cylindrical hole for mounting a cylindrical gear.
As an improvement, a return spring is sleeved outside the part of the ejector rod, which is positioned between the first differential lock shell and the locking push disc.
And as an improvement, the locking push disc is provided with a second ejector rod hole, and the ejector rod extends out of the second ejector rod hole and is fixed with the locking push disc through a fixing nut.
As an improvement, a fixed snap ring is arranged at the joint of the locking pulling-out plug bush and the locking combination sleeve.
As an improvement, a hollow hydraulic piston is arranged in the hydraulic push disc, a thrust bearing is arranged between the hydraulic piston and the locking push disc, an oil inlet and outlet port is arranged at the bottom of the inner side of the hydraulic push disc, and an anti-rotation support connected with a bearing seat of the differential lock shell is arranged at the top of the hydraulic push disc.
As an improvement, a connecting flange is arranged at the joint of the first differential lock shell and the second differential lock shell.
After adopting the structure, the invention has the following advantages: the invention ingeniously uses 6 cylindrical gears, two ends of the cylindrical gears are arranged in the differential lock shell to drive the front half-axle output gear and the rear half-axle output gear to rotate and also to perform differential operation, the locking combination sleeve is connected with the two output half-axle gears, and the locking combination sleeve is moved by external force to be combined with the other output half-axle gear to form hard link, thereby achieving the purpose of locking.
Drawings
Fig. 1 is a schematic view of a split structure of a front, middle and rear differential lock applicable to four-wheel drive vehicles.
FIG. 2 is a schematic view of the combination structure of the inner structure of the differential lock case of the differential lock for front, middle and rear of the four-wheel drive vehicle.
FIG. 3 is a schematic view of the internal structure of a first differential lock shell of a front, middle and rear differential lock of the four-wheel drive vehicle.
Fig. 4 is a schematic structural diagram of a hydraulic push disc in a differential lock suitable for front, middle and rear of a four-wheel drive vehicle.
As shown in the figure: 1. the differential lock comprises a first differential lock shell, a second differential lock shell, a third differential lock shell, a cylindrical gear, a fourth differential lock shell, a fifth differential lock shell, a sixth differential lock.
Detailed Description
With the combination of the attached drawings, the differential lock applicable to the front, middle and rear of the four-wheel drive vehicle comprises a first differential lock shell 1, a second differential lock shell 2, a cylindrical gear 3, a first output half-axle gear 4, a second output half-axle gear 7, a locking plug sleeve 5 and a locking combination sleeve 6, wherein the first differential lock shell 1 and the second differential lock shell 2 are arranged oppositely; one end of the front half axle gear, which is close to the front differential shell, is forwards provided with an output half axle internal spline 8, the other end of the front half axle gear is backwards provided with a connecting spline 9, the locking combination sleeve 6 is sleeved at one end of the output half axle gear I4, which is provided with the connecting spline 9, the inside of the locking combination sleeve is provided with a connecting internal spline 10 matched with the connecting spline 9, the other end of the locking combination sleeve 6 is backwards provided with a locking spline 11, the locking pull-plug sleeve is sleeved outside the locking combination sleeve 6, one side of the locking pull-plug sleeve, which is close to the differential lock shell I1, is forwards provided with a top rod 12 spliced with the differential lock shell I1, one end of the output half axle gear II 7 is internally provided with a locking spline tooth 13 corresponding to the locking combination sleeve 6, the other end of the output internal spline 14, the cylindrical gear 3 is meshed outside the front half axle gear and, a locking thrust disc 16 and a hydraulic thrust disc 15 are arranged outside the differential lock shell I1, and an ejector rod 12 on the locking plug bush extends out of the differential lock shell I1 and then is connected with the locking thrust disc 16.
In a preferred embodiment of the present embodiment, the cylindrical gears 3 are externally provided with external teeth which are engaged with the first output side gear 4 and the second output side gear 7, the number of the cylindrical gears 3 is six, and each two of the cylindrical gears 3 are in a group, the cylindrical gears 3 in each group are staggered, so that one cylindrical gear 3 is engaged with only the first output side gear 4, the other cylindrical gear 3 is engaged with only the second output side gear 7, and two cylindrical gears 3 in each group are engaged with each other.
In the preferred embodiment of the present embodiment, the inner sections of the differential lock cases 1 and 2 are provided with a first knock rod hole 17 and a cylindrical hole 18 for mounting the cylindrical gear 3.
As a preferred embodiment of the embodiment, a return spring 19 is sleeved outside the part of the ejector rod 12 between the differential lock shell 1 and the locking push plate 16.
As a preferred embodiment of this embodiment, the locking push disc 16 is provided with a second ejector rod hole 20, and the ejector rod 12 extends out of the second ejector rod hole 20 and is fixed with the locking push disc 16 through a fixing nut.
As a preferred embodiment of the present embodiment, a fixing snap ring 21 is disposed at a connection position of the locking pulling-out sleeve and the locking combining sleeve 6.
As a preferred embodiment of the present embodiment, a hollow hydraulic piston is arranged in the hydraulic push disc 15, a thrust bearing is arranged between the hydraulic piston and the locking push disc 16, an oil inlet and outlet port 22 is arranged at the bottom of the inner side of the hydraulic push disc 15, an anti-rotation support 23 connected with a bearing seat of the differential lock case is arranged at the top of the hydraulic push disc 15, and in the figure, a hydraulic push disc position 25 is arranged at the front end of the differential lock case 1.
In a preferred embodiment of this embodiment, a connecting flange 24 is disposed at the connection position of the differential lock case 1 and the differential lock case 2.
When the differential lock is implemented specifically, (1) the 6 cylindrical gears are divided into three groups, each two cylindrical gears are arranged in a staggered mode, and one end of each cylindrical gear is inserted into a front cylindrical hole in a first differential lock shell; (2) then the locking plug sleeve is sleeved outside the locking combination sleeve and is fixed by a fixing snap ring; (3) sleeving the combined locking combination sleeve at one end of the first output half shaft gear, which is provided with the connecting spline, and butting a mandril on the locking plug sleeve with a mandril hole in the first differential lock shell; (4) aligning the second differential lock shell to 6 cylindrical gears, connecting the second differential lock shell with the first differential lock shell, and screwing the connecting flange plates by screws; (5) a part of one end of the ejector rod extending out of the first differential lock shell is sleeved with a return spring and then is connected with the locking push disc; (6) the needle roller bearing is arranged on the hydraulic push disc, and the anti-rotation support is arranged on the hydraulic push disc and is fixedly connected with the differential lock bearing seat to prevent rotation.
1. Normal operation of differential lock
The differential lock shell is driven to rotate through power, the differential lock shell drives 6 cylindrical gears to rotate, and the 6 cylindrical gears drive the first output half axle gear and the second half axle output gear to rotate, so that the first output half axle gear and the second half axle output gear rotate in the same direction.
2. Differential function of normal operation of differential lock
When the differential lock normally operates, when a certain output side gear turns and has resistance or slips, the output side gear can rotate slowly or stop not rotating, at the moment, the three cylindrical gears meshed with the output side gear which rotates slowly or stops not rotating can rotate around the output side gear which rotates slowly or stops rotating in the normal movement direction, the other three cylindrical gears which are meshed mutually can be driven to drive the other output side gear meshed with the other cylindrical gear to rotate in the normal direction, and the differential lock operates to form the normal differential function when an automobile runs.
3. Locking function of differential lock
When a certain wheel or front and rear wheels of an automobile runs without adhesive force and slip, the power of the automobile is transmitted to the slipping and slipping wheel, and the wheel with the adhesive force cannot obtain the power of the automobile and cannot rotate, so that the power loss is caused, the automobile cannot run forwards, and the locking function of a differential lock is needed;
the differential lock disconnects power: when the hydraulic pump stops working through a time relay, hydraulic oil is stopped to be input, the first differential lock shell and the second differential lock shell are movably connected through the middle locking combination sleeve to form a rigid hard link, and the first output half axle gear and the second output half axle gear cannot rotate independently;
connecting power: the differential lock shell drives 6 cylindrical gears to rotate, the 6 cylindrical gears forcibly drive the front half shaft output gear and the rear half shaft output gear to rotate, so that wheels with adhesive force are powered to drive the automobile to move forwards, the aim of locking is achieved, the automobile is also trapped by escaping, after the automobile is trapped by escaping, the locking switch is turned off, the hydraulic pump is reversed, and the hydraulic push disc is drawn out; three return spring makes the locking push away the dish and rebounds, and the locking push away the dish and drive locking plug cover and locking combination cover and remove the return, makes the car turn of normally traveling to can realize the differential function again.
The invention skillfully uses 6 cylindrical gears, two ends of the cylindrical gears are arranged in the differential lock shell to drive two output half shaft gears (a front half shaft output gear and a rear half shaft output gear) to rotate and also can perform differential operation, the two output half shaft gears are connected by arranging the locking combination sleeve, and the locking combination sleeve is moved by external force to be combined with the other output half shaft gear to form hard link, thereby achieving the purpose of locking.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A differential lock applicable to front, middle and rear of a four-wheel drive vehicle is characterized by comprising a first differential lock shell, a second differential lock shell, a cylindrical gear, a first output half shaft gear, a second output half shaft gear, a locking plug sleeve and a locking combination sleeve, wherein the first differential lock shell and the second differential lock shell are arranged oppositely; one end of the front half axle gear, which is close to the front differential shell, is forwards provided with an output half axle internal spline, the other end of the front half axle gear is backwards provided with a connecting spline, the locking combination sleeve is sleeved at one end of the first output half axle gear, which is provided with a connecting spline, the inside of the first output half axle gear is provided with a connecting internal spline matched with the connecting spline, the other end of the locking combination sleeve is backwards provided with a locking spline, the locking pull-plug sleeve is sleeved outside the locking combination sleeve, one side of the locking pull-plug sleeve, which is close to the first differential lock shell, is forwards provided with a push rod connected with the first differential lock shell, the inside of one end of the second output half axle gear is provided with a locking spline tooth corresponding to the locking combination sleeve, the other end of the second output half axle gear is provided with an output internal spline, the cylindrical gear is meshed outside the front half axle gear and, and the ejector rod on the locking pulling and inserting sleeve extends out of the differential lock shell and then is connected with the locking push disc.
2. The differential lock applicable to front, middle and rear of a four-wheel drive as claimed in claim 1, wherein the cylindrical gears are externally provided with external teeth meshed with the first output side gear and the second output side gear, the number of the cylindrical gears is six, each two cylindrical gears are in a group, the cylindrical gears in each group are staggered, one cylindrical gear is meshed with only the first output side gear, the other cylindrical gear is meshed with only the second output side gear, and two cylindrical gears in each group are meshed with each other.
3. The differential lock applicable to front, middle and rear of a four-wheel drive vehicle as claimed in claim 1, wherein the first differential lock shell and the second differential lock shell are provided with a first ejector rod hole and a cylindrical hole for mounting a cylindrical gear in each inner section.
4. The differential lock applicable to the front, middle and rear of a four-wheel drive as claimed in claim 1, wherein a return spring is sleeved outside a part of the ejector rod between the first differential lock shell and the locking push disc.
5. The differential lock applicable to front, middle and rear of a four-wheel drive as claimed in claim 1, wherein the locking push plate is provided with a second ejector rod hole, and the ejector rod extending out of the second ejector rod hole is fixed with the locking push plate through a fixing nut.
6. The differential lock applicable to front, middle and rear of a four-wheel drive vehicle as claimed in claim 1, wherein a fixed snap ring is arranged at the joint of the locking pull-out plug bush and the locking combination bush.
7. The differential lock applicable to the front, middle and rear of a four-wheel drive vehicle as claimed in claim 1, wherein a hollow hydraulic piston is arranged in the hydraulic push disc, a thrust bearing is arranged between the hydraulic piston and the locking push disc, an oil inlet and outlet port is arranged at the bottom of the inner side of the hydraulic push disc, and an anti-rotation support connected with a bearing seat of the differential lock shell is arranged at the top of the hydraulic push disc.
8. The differential lock applicable to the front, middle and rear of a four-wheel drive vehicle as claimed in claim 1, wherein a connecting flange is arranged at the joint of the first differential lock shell and the second differential lock shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969635.8A CN112096824A (en) | 2020-09-15 | 2020-09-15 | Differential lock suitable for front, middle and rear of four-wheel drive vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969635.8A CN112096824A (en) | 2020-09-15 | 2020-09-15 | Differential lock suitable for front, middle and rear of four-wheel drive vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112096824A true CN112096824A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010969635.8A Pending CN112096824A (en) | 2020-09-15 | 2020-09-15 | Differential lock suitable for front, middle and rear of four-wheel drive vehicle |
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|---|---|
| CN (1) | CN112096824A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203979323U (en) * | 2014-06-19 | 2014-12-03 | 株洲联动齿轮工业有限公司 | A kind of main reducing gear for middle-size and small-size Motor Vehicle |
| CN204327904U (en) * | 2014-11-05 | 2015-05-13 | 泸州开士乐工程技术有限责任公司 | Differential lock between a kind of integrated type wheel |
| CN205089932U (en) * | 2015-11-11 | 2016-03-16 | 泸州开士乐工程技术有限责任公司 | Integral betweencenters differential lock |
| CN207145570U (en) * | 2017-04-26 | 2018-03-27 | 周雪飞 | A kind of 4-wheel driven car center limited-slip differential |
| JP2019086053A (en) * | 2017-11-03 | 2019-06-06 | 武蔵精密工業株式会社 | Differential device |
| CN212899612U (en) * | 2020-09-15 | 2021-04-06 | 周雪飞 | Differential lock suitable for front, middle and rear of four-wheel drive vehicle |
-
2020
- 2020-09-15 CN CN202010969635.8A patent/CN112096824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203979323U (en) * | 2014-06-19 | 2014-12-03 | 株洲联动齿轮工业有限公司 | A kind of main reducing gear for middle-size and small-size Motor Vehicle |
| CN204327904U (en) * | 2014-11-05 | 2015-05-13 | 泸州开士乐工程技术有限责任公司 | Differential lock between a kind of integrated type wheel |
| CN205089932U (en) * | 2015-11-11 | 2016-03-16 | 泸州开士乐工程技术有限责任公司 | Integral betweencenters differential lock |
| CN207145570U (en) * | 2017-04-26 | 2018-03-27 | 周雪飞 | A kind of 4-wheel driven car center limited-slip differential |
| JP2019086053A (en) * | 2017-11-03 | 2019-06-06 | 武蔵精密工業株式会社 | Differential device |
| CN212899612U (en) * | 2020-09-15 | 2021-04-06 | 周雪飞 | Differential lock suitable for front, middle and rear of four-wheel drive vehicle |
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