CN100467303C - Differential speed rear axle assembly of sand beach vehicle - Google Patents
Differential speed rear axle assembly of sand beach vehicle Download PDFInfo
- Publication number
- CN100467303C CN100467303C CNB2006100544256A CN200610054425A CN100467303C CN 100467303 C CN100467303 C CN 100467303C CN B2006100544256 A CNB2006100544256 A CN B2006100544256A CN 200610054425 A CN200610054425 A CN 200610054425A CN 100467303 C CN100467303 C CN 100467303C
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- differential
- near switch
- shifting block
- drive screw
- differential casing
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Abstract
The invention relates to a differential rear axle assembly of sand vehicle, wherein it mounts gear box outside the half axle; said gear box contains transmission screw and cylinder track; the transmission screw is rotated by the transmission device; the gear box contains two dial blocks whose one end sheathes the transmission screw and connected to the screw of transmission screw, while another end movably sheathes the cylinder track; the cylinder track between the first and second dial blocks is sheathed with dial fork; said dial fork and the first dial block have a spring between them; the outer end of dial fork is inside the dial fork groove at the outer circumference of clutch sleeve; the inner end of clutch sleeve is inserted into the frame of differential gear when locked. The invention has simple structure, easy control, and stable working property. When driving on the better road, the clutch sleeve is separated from the frame, to avoid high tyre abrasion and high oil consumption; when driving on worse road, the clutch sleeve is locked with the frame, to avoid sliding rotation.
Description
Technical field
The present invention relates to a kind of beach buggy, especially a kind of differential speed rear axle assembly of sand beach vehicle.
Background technology
Beach buggy (ATV) is owing to being in various complicated travels down mainly, and is very high to the requirement of vehicle differential speed rear axle assembly of sand.The general-duty differential speed rear axle assembly of sand beach vehicle is made up of rear-wheel hub, left half axle, left half axle housing, right axle shaft, right axle shaft housing, sprocket wheel, differential casing, planetary wheel, axle side gear, brake disc and differential locking-device control mechanism etc. at present.Wherein planetary wheel, axle side gear and differential casing constitute diff.The differential locking-device control mechanism comprises differential handle, differential drag hook, differential drag-line, spring, differential arm, shift fork and clutch cover.Sprocket wheel is sleeved on the differential casing, planetary wheel and axle side gear are installed in the differential casing, two axle side gears that are set on the left and right half are positioned at planetary both sides, and mesh with planetary wheel, clutch cover is sleeved on the left half axle and is positioned at the left side of differential casing, is provided with the end face tooth that matches at clutch cover and differential casing opposing end faces, and the outer end of clutch cover has the fork slot that inserts for shift fork, by fork controls, realize with the locking of differential casing with separate.
During work, engine power is delivered to sprocket wheel by chain, the planetary wheel rotation that makes sprocket wheel drive differential casing and be connected with differential casing, when planetary wheel rotates, two axle side gears that drive is engaged with rotate, axle side gear drives cooresponding semiaxis by spline and rotates, thereby the rear-wheel hub that is installed on the semiaxis is rotated.When pulling the differential handle, the differential handle drives differential drag hook pulling differential drag-line and moves, differential drag-line pulling spring with tension on the differential arm, the differential arm rotates and stirs shift fork and moves axially, make the engagement of clutch cover end face tooth and differential casing end face tooth, pin diff, left and right rear-wheel hub rotates with same rotational speed.When oppositely pulling the differential handle, the differential drag-line is loosening, and the thrust that is added on the clutch cover disappears, and clutch cover separates with differential casing, diff work, and left and right rear-wheel hub can rotate by differential.
Differential locking-device control mechanism in the existing differential speed rear axle assembly of sand beach vehicle mainly has the following disadvantages:
1, complex structure, mechanism size is big, the manual control inconvenience;
2, owing to adopt the engagement of end face tooth between clutch cover and the differential casing, the number of teeth is less, when engagement very easily to tooth and can not normal engaged;
3, the power of when clutch cover separates with differential casing, clutch cover not being extracted, but throw off by the component that tooth surface shape produces, when the tooth surface shape error is excessive, just can not in time separate;
4, after the end face tooth used the long period, after profile of tooth was worn down to the inclined-plane, the contrite gear adjutant can't mesh, so serviceability is unreliable.
Summary of the invention
For solving above technical matters, the object of the present invention is to provide between a kind of clutch cover and the differential casing locking and separate easy differential speed rear axle assembly of sand beach vehicle.
Technical scheme of the present invention is as follows: a kind of differential speed rear axle assembly of sand beach vehicle, suit sprocket wheel on differential casing, planetary wheel and axle side gear are installed in the differential casing, two axle side gears lay respectively at planetary both sides and with this planetary wheel engagement, a left side, the inner of right two semiaxis oppositely inserts in the differential casing, be connected with cooresponding axle side gear spline, on left half axle, also be set with clutch cover, its key is: the outside of described left half axle is provided with transmission gearbox, be provided with drive screw parallel with described left half axle and cylindrical guide in this transmission gearbox, wherein drive screw is by the transmission device driven rotary; In described transmission gearbox, also be provided with two shifting blocks, these two shifting block one ends are sleeved on the drive screw and with drive screw and are threaded, and other end kink is on cylindrical guide, when described drive screw rotates, two shifting blocks are around the drive screw screw thread rotation, and make axial translation along cylindrical guide; On the cylindrical guide between first shifting block and second shifting block, be set with shift fork, be provided with spring between this shift fork and first shifting block; The outer end of described shift fork is arranged in the fork slot of clutch cover outer end periphery, and insert in the differential casing when locking the inner of this clutch cover, and is connected with the differential casing spline.
Adopt above technical scheme, drive screw can forward and reversely rotate under the drive of transmission device, when drive screw just changes, first shifting block, second shifting block move towards differential casing on drive screw and cylindrical guide, spring promotes the same moved further of shift fork, make shift fork promote clutch cover and insert in the differential casing locking between clutch cover and the differential casing; When drive screw reverses, first shifting block, second shifting block on drive screw and cylindrical guide dorsad differential casing move, second shifting block directly promotes shift fork and moves, and clutch cover is separated with differential casing.Like this, locking and separate and realize that serviceability is more reliable easily between clutch cover and the differential casing.Spring, can play a protective role during to tooth at clutch cover and differential casing.
Above-mentioned transmission device is made of electrical motor, worm and worm wheel, and wherein the output shaft of electrical motor connects with worm screw, be meshing with each other between the worm and wheel, and worm gear connects with described drive screw is coaxial.The forward and backward motion of drive screw is by motor control, and its control current is little, and control is convenient.
For limiting the stroke of first shifting block and second shifting block, on above-mentioned transmission gearbox, be provided with first near switch and second near switch, two receive the position signal of first shifting block and second shifting block respectively near switch, feed back to control button, control motor work.
Above-mentioned first connects near switch and control button successively near switch, second, and first is connected with an end of electrical motor with second common port near switch near switch, and the other end of electrical motor and described control button join.
Control button is arranged on the handgrip place, is convenient to driver's operation.When initial, press control button, first selects normally closed performance near switch, second for use near switch, and control button, first is near the circuit turn-on between switch and the electrical motor, and electrical motor just changes, first shifting block and second shifting block are towards the differential casing translation, clutch cover is inserted in the differential casing, and when first shifting block and second shifting block moved into place, first near switch motion, cut off quits work electrical motor.At this moment, second receives the position signal of second shifting block near switch, is in conducting state, press control button again, control button, second is near the circuit turn-on between switch and the electrical motor, and electrical motor reverses, first shifting block and the differential casing translation dorsad of second shifting block, second shifting block promotes shift fork and oppositely moves, clutch cover is repositioned to fully throws off, second near switch motion, cut off, electrical motor is quit work, and first is in conducting state near switch.
Mode of operation during for reflection clutch cover and differential casing locking is in series with signal lamp between above-mentioned control button and first is near switch.Signal lamp is bright when clutch cover and differential casing locking, and signal lamp extinguishes during separation.Signal lamp is arranged on the gauge panel, is convenient to driver's observation.
Beneficial effect: compared with prior art, the present invention is simple in structure, control is convenient, serviceability is secure.At road conditions road traveling preferably, be that the may command clutch cover separates with differential casing by control button, can eliminate turning to disadvantages such as difficulty, wear on tyres are big, oil consumption height; On muddy road surface, travel, just can realize clutch cover and differential casing locking, can effectively avoid the phenomenon of trackslipping by control button.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the back view of Fig. 1.
Fig. 3 is the structural representation of transmission device among the present invention.
Fig. 4 is shifting fork mechanism figure of the present invention.
Fig. 5 is an electric control schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, be set with sprocket wheel 2 and brake disc 22 at the two ends, the left and right sides of differential casing 1, planetary wheel 3 and axle side gear 4 are installed in the differential casing 1, wherein planetary wheel 3 is captiveed joint with differential casing 1, two axle side gears 4 lay respectively at planetary wheel 3 both sides and with these planetary wheel 3 engagements.Planetary wheel 3, axle side gear 4 and differential casing 1 constitute diff.The inner of left and right two semiaxis 5,6 oppositely inserts in the differential casing 1, is connected with cooresponding axle side gear 4 splines, and its outer end all is equipped with rear-wheel hub 23.Be with left half axle housing 24 in the outside of left half axle 5, the outside of right axle shaft 6 is with right axle shaft housing 25.Also be set with clutch cover 7 on the left half axle 5 in described differential casing 1 left side, this clutch cover 7 is connected with left half axle 5 splines, and clutch cover 7 outer end peripheries are provided with annular fork slot 7a, is distributed with spline tooth on the inner periphery.
Engine power is delivered to sprocket wheel 2 by chain, make sprocket wheel 2 drive differential casing 1 and planetary wheel 3 rotations, when planetary wheel 3 rotates, two axle side gears 4 that drive is engaged with rotate, axle side gear 4 drives cooresponding semiaxis 5,6 by spline and rotates, thereby the rear-wheel hub 23 that is installed on the semiaxis is rotated.
As Fig. 2, Fig. 3, shown in Figure 4, the outside of left half axle 5 is provided with transmission gearbox 8, is provided with drive screw 9 and the cylindrical guide 10 parallel with described left half axle 5 in this transmission gearbox 8, and wherein drive screw 9 is by the transmission device driven rotary.Transmission device is made of electrical motor 15, worm screw 16 and worm gear 17, and wherein the output shaft of electrical motor 15 connects with worm screw 16, be meshing with each other between worm screw 16 and the worm gear 17, and worm gear 17 and described 9 coaxial connections of drive screw.In described transmission gearbox 8, also be provided with two shifting blocks 11,12, these two shifting blocks, 11,12 1 ends are sleeved on the drive screw 9 and with drive screw 9 and are threaded, other end kink is on cylindrical guide 10, when described drive screw 9 rotates, two shifting blocks 11,12 are around drive screw 9 screw thread rotation, and make axial translation along cylindrical guide 10.On the cylindrical guide 10 between first shifting block 11 and second shifting block 12, be set with shift fork 13, be provided with spring 14 between this shift fork 13 and first shifting block 11.The outer end of described shift fork 13 is arranged in the fork slot of clutch cover 7 outer end peripheries, and insert in the differential casing 1 when locking the inner of this clutch cover 7, and is connected with differential casing 1 spline.
As Fig. 4, shown in Figure 5, on transmission gearbox 8, be provided with first and receive the position signal of first shifting block 11 and second shifting block 12 near switch 19, two respectively near switch 18,19 near switch 18 and second, feed back to control button 20, control motor 15 work.Described first connects near switch 19 and control button 20 successively near switch 18, second, and first is connected with an end of electrical motor 15 with second common port near switch 19 near switch 18, and the other end of electrical motor 15 and described control button 20 join.Between control button 20 and first is near switch 18, be in series with signal lamp 21.
The storage battery 24 that beach buggy carries is to each several part power supply, and first when being positioned at as shown in Figure 4 the position near switch 18, second near switch 19, and first is in conducting state near switch 18, and second be in off-state near switch 19.Press control button 20, control button 20, first is near the circuit turn-on between switch 18 and the electrical motor 15, electrical motor 15 is just changeing, first shifting block 11 and second shifting block 12 are towards differential casing 1 translation, clutch cover 7 is inserted in the differential casings 1, and when first shifting block 11 and second shifting block 12 moved into place, first near switch 18 actions, cut off quits work electrical motor 15.At this moment, second position signal near switch 19 receptions second shifting block 12 is in conducting state.Press control button 20 again, control button 20, second is near the circuit turn-on between switch 19 and the electrical motor 15, electrical motor 15 counter-rotatings, first shifting block 11 and differential casing 1 translation dorsad of second shifting block 12, second shifting block 12 promotes shift fork 13 and oppositely moves, and clutch cover 7 is repositioned to fully throws off, second near switch 19 actions, cut off quits work electrical motor 15, and first near switch 18 from newly being in conducting state.
Claims (5)
1, a kind of differential speed rear axle assembly of sand beach vehicle, go up suit sprocket wheel (2) at differential casing (1), planetary wheel (3) and axle side gear (4) are installed in the differential casing (1), two axle side gears (4) lay respectively at the both sides of planetary wheel (3) and mesh with this planetary wheel (3), the inner of left and right two semiaxis (5,6) oppositely inserts in the differential casing (1), be connected with cooresponding axle side gear (4) spline, on left half axle (5), also be set with clutch cover (7), it is characterized in that:
The outside of A, described left half axle (5) is provided with transmission gearbox (8), is provided with drive screw (9) and the cylindrical guide (10) parallel with described left half axle (5) in this transmission gearbox (8), and wherein drive screw (9) is by the transmission device driven rotary;
B, in described transmission gearbox (8), also be provided with two shifting blocks (11,12), this two shifting blocks (11,12) end is sleeved on drive screw (9) and upward and with drive screw (9) is threaded, other end kink is on cylindrical guide (10), during described drive screw (9) rotation, two shifting blocks (11,12) are around drive screw (9) screw thread rotation, and make axial translation along cylindrical guide (10);
C, on the cylindrical guide (10) between first shifting block (11) and second shifting block (12), be set with shift fork (13), be provided with spring (14) between this shift fork (13) and first shifting block (11);
The outer end of D, described shift fork (13) is arranged in the fork slot of clutch cover (7) outer end periphery, and insert in the differential casing (1) when locking the inner of this clutch cover (7), and is connected with differential casing (1) spline.
2, a kind of differential speed rear axle assembly of sand beach vehicle according to claim 1, it is characterized in that: described transmission device is made of electrical motor (15), worm screw (16) and worm gear (17), wherein the output shaft of electrical motor (15) connects with worm screw (16), be meshing with each other between worm screw (16) and the worm gear (17), and worm gear (17) and coaxial connection of described drive screw (9).
3, a kind of differential speed rear axle assembly of sand beach vehicle according to claim 2, it is characterized in that: on transmission gearbox (8), be provided with first near switch (18) and second near switch (19), first and second receive the position signal of first shifting block (11) and second shifting block (12) respectively near switch (18,19), feed back to control button (20), control motor (15) work.
4, a kind of differential speed rear axle assembly of sand beach vehicle according to claim 3, it is characterized in that: described first connects near switch (19) and control button (20) successively near switch (18), second, first is connected with an end of electrical motor (15) with second common port near switch (19) near switch (18), and the other end of electrical motor (15) and described control button (20) join.
5, a kind of differential speed rear axle assembly of sand beach vehicle according to claim 3 is characterized in that: be in series with signal lamp (21) between control button (20) and first is near switch (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100544256A CN100467303C (en) | 2006-07-10 | 2006-07-10 | Differential speed rear axle assembly of sand beach vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100544256A CN100467303C (en) | 2006-07-10 | 2006-07-10 | Differential speed rear axle assembly of sand beach vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1876426A CN1876426A (en) | 2006-12-13 |
| CN100467303C true CN100467303C (en) | 2009-03-11 |
Family
ID=37509047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100544256A Expired - Fee Related CN100467303C (en) | 2006-07-10 | 2006-07-10 | Differential speed rear axle assembly of sand beach vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100467303C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7896120B2 (en) * | 2008-04-02 | 2011-03-01 | Yamaha Hatsudoki Kabushiki Kaisha | Small-sized vehicle with improved drivetrain |
| CN102478109A (en) * | 2010-11-29 | 2012-05-30 | 张惠杰 | Mechanical lock-type differential |
| CN106090182A (en) * | 2016-08-22 | 2016-11-09 | 广东富华重工制造有限公司 | A kind of differential lock of band proximity switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2059523A (en) * | 1979-09-26 | 1981-04-23 | Maschf Augsburg Nuernberg Ag | A Locking Differential Gear for the Driving Axle of a Motor Vehicle |
| CN2568880Y (en) * | 2002-09-13 | 2003-08-27 | 訾化彬 | Lockable differential mechanism |
| CN2675959Y (en) * | 2004-02-09 | 2005-02-02 | 陈郁 | Dual-drive type automobile differential |
| CN1664414A (en) * | 2005-03-26 | 2005-09-07 | 曹相照 | Forced locking differential without stopping |
| CN2929356Y (en) * | 2006-07-11 | 2007-08-01 | 力帆实业(集团)有限公司 | Differential rear axle assembly of beach vehicle |
-
2006
- 2006-07-10 CN CNB2006100544256A patent/CN100467303C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2059523A (en) * | 1979-09-26 | 1981-04-23 | Maschf Augsburg Nuernberg Ag | A Locking Differential Gear for the Driving Axle of a Motor Vehicle |
| CN2568880Y (en) * | 2002-09-13 | 2003-08-27 | 訾化彬 | Lockable differential mechanism |
| CN2675959Y (en) * | 2004-02-09 | 2005-02-02 | 陈郁 | Dual-drive type automobile differential |
| CN1664414A (en) * | 2005-03-26 | 2005-09-07 | 曹相照 | Forced locking differential without stopping |
| CN2929356Y (en) * | 2006-07-11 | 2007-08-01 | 力帆实业(集团)有限公司 | Differential rear axle assembly of beach vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1876426A (en) | 2006-12-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20190710 |