CN2929356Y - Differential rear axle assembly of beach vehicle - Google Patents
Differential rear axle assembly of beach vehicle Download PDFInfo
- Publication number
- CN2929356Y CN2929356Y CNU2006201109233U CN200620110923U CN2929356Y CN 2929356 Y CN2929356 Y CN 2929356Y CN U2006201109233 U CNU2006201109233 U CN U2006201109233U CN 200620110923 U CN200620110923 U CN 200620110923U CN 2929356 Y CN2929356 Y CN 2929356Y
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- Prior art keywords
- differential
- shifting
- shifting block
- drive screw
- near switch
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- Expired - Lifetime
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Abstract
The utility model discloses a differential rear axle unit assemblage of sand beach vehicle, wherein a transmission case is provided outside the left half axle, the transmission case is provided with a drive bolt, a cylindrical guide rail, the drive bolt is drove to rotate by a transmission mechanism, and the transmission case is further provided with two shifting blocks, one end of the two shifting blocks is nested and arranged on the drive bolt and is connected with the drive bolt by screw thread, the other end is movably fitted over the cylindrical guide rail, a shifting folk is nested and arranged on the cylindrical guide rail locating between the first shifting block and the second shifting block, a spring is provided between the shifting folk and the first shifting block, and the outer end of the shifting folk locates in the shifting folk groove of the circumferential face of the outer end of a clutch sleeve, the inner end of the clutch sleeve inserts into the shell body of differential mechanism when latching. The utility model has a simple structure, convenient control, and guaranteed working properties. When running on the road in good condition, the clutch sleeve and the shell body of the differential mechanism are separated, thereby the disadvantages of difficult steering, great abrasion of tyre,high oil consumption and the like can be eliminated, and when running on the muddy road, the clutch sleeve locks with the shell body of the differential mechanism, thereby the phenomenon of wheelspin can be avoided effectively.
Description
Technical field
The utility model relates to a kind of beach buggy, especially differential speed rear axle assembly of sand beach vehicle.
Background technique
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.General 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 pinion, differential gear, brake disc and differential lock control mechanism etc. at present.Wherein planetary pinion, differential gear and differential casing constitute differential mechanism.The differential lock 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 pinion and differential gear are installed in the differential casing, two differential gears that are set on the left and right half are positioned at planetary both sides, and mesh with planetary pinion, 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 pinion rotation that makes sprocket wheel drive differential casing and be connected with differential casing, when planetary pinion rotates, two differential gears that drive is engaged with rotate, differential gear drives corresponding 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 differential mechanism, 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, differential mechanism work, and left and right rear-wheel hub can rotate by differential.
Differential lock 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 face gear adjutant can't mesh, so service behaviour is unreliable.
The model utility content
For solving above technical problem, the purpose of this utility model locking is provided to provide between a kind of clutch cover and the differential casing and separates easy differential speed rear axle assembly of sand beach vehicle.
The technical solution of the utility model is as follows: a kind of differential speed rear axle assembly of sand beach vehicle, suit sprocket wheel on differential casing, planetary pinion and differential gear are installed in the differential casing, two differential gears lay respectively at planetary both sides and with this planetary pinion engagement, a left side, the inner of right two semiaxis oppositely inserts in the differential casing, connect with corresponding differential 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 case, be provided with drive screw parallel with described left half axle and cylindrical guide in this transmission case, wherein drive screw is by the driving mechanism driven rotary; In described transmission case, 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 the 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 circumferential surface, and insert in the differential casing when locking the inner of this clutch cover, and is connected with the differential casing spline.
Adopt above technological scheme, drive screw can forward and reversely rotate under the drive of driving mechanism, 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 service behaviour 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 driving mechanism is made of motor, worm and worm wheel, and wherein the output shaft of 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 electric current is little, and control is convenient.
For limiting the stroke of first shifting block and second shifting block, on above-mentioned transmission case, 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 knob, the work of control motor.
Above-mentioned first connects near switch and control knob successively near switch, second, and first is connected with an end of motor with second common port near switch near switch, and the other end of motor and described control knob join.
Control knob is arranged on the handgrip place, is convenient to driver's operation.When initial, press control knob, first selects normally closed performance near switch, second for use near switch, and control knob, first is near the circuit turn-on between switch and the motor, and 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, disconnecting circuit quits work motor.At this moment, second receives the position signal of second shifting block near switch, is on state, press control knob again, control knob, second is near the circuit turn-on between switch and the motor, and 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, disconnecting circuit, motor is quit work, and first is on state near switch.
Working state during for reflection clutch cover and differential casing locking is in series with signaling lamp between above-mentioned control knob and first is near switch.Signaling lamp is bright when clutch cover and differential casing locking, and signaling lamp extinguishes during separation.Signaling lamp is arranged on the instrument panel, is convenient to driver's observation.
Beneficial effect: compared with prior art, the utility model is simple in structure, control is convenient, service behaviour is secure.At road conditions road traveling preferably, be that the may command clutch cover separates with differential casing by control knob, can eliminate turning to disadvantages such as difficulty, tire wear 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 knob.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the rear view of Fig. 1.
Fig. 3 is the structural representation of driving mechanism in the utility model.
Fig. 4 is shifting fork mechanism figure of the present utility model.
Fig. 5 is an electric control schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail 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 pinion 3 and differential gear 4 are installed in the differential casing 1, wherein planetary pinion 3 is fixedlyed connected with differential casing 1, two differential gears 4 lay respectively at planetary pinion 3 both sides and with these planetary pinion 3 engagements.Planetary pinion 3, differential gear 4 and differential casing 1 constitute differential mechanism.The inner of left and right two semiaxis 5,6 oppositely inserts in the differential casing 1, and with corresponding differential gear 4 splines connection, 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 circumferential surfacies are provided with annular fork slot 7a, is distributed with spline tooth on the inner circumferential surface.
Engine power is delivered to sprocket wheel 2 by chain, make sprocket wheel 2 drive differential casing 1 and planetary pinion 3 rotations, when planetary pinion 3 rotates, two differential gears 4 that drive is engaged with rotate, differential gear 4 drives corresponding 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 case 8, is provided with drive screw 9 and the cylindrical guide 10 parallel with described left half axle 5 in this transmission case 8, and wherein drive screw 9 is by the driving mechanism driven rotary.Driving mechanism is made of motor 15, worm screw 16 and worm gear 17, and wherein the output shaft of 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 case 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, the 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 circumferential surfacies, 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 case 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 knob 20,15 work of control motor.Described first connects near switch 19 and control knob 20 successively near switch 18, second, and first is connected with an end of motor 15 with second common port near switch 19 near switch 18, and the other end of motor 15 and described control knob 20 join.Between control knob 20 and first is near switch 18, be in series with signaling 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 on state near switch 18, and second be in off state near switch 19.Press control knob 20, control knob 20, first is near the circuit turn-on between switch 18 and the motor 15, 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, disconnecting circuit quits work motor 15.At this moment, second position signal near switch 19 receptions second shifting block 12 is on state.Press control knob 20 again, control knob 20, second is near the circuit turn-on between switch 19 and the motor 15, 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, disconnecting circuit quits work motor 15, and first near switch 18 from newly being on 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 pinion (3) and differential gear (4) are installed in the differential casing (1), two differential gears (4) lay respectively at the both sides of planetary pinion (3) and mesh with this planetary pinion (3), the inner of left and right two semiaxis (5,6) oppositely inserts in the differential casing (1), connect with corresponding differential 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 case (8), is provided with drive screw (9) and the cylindrical guide (10) parallel with described left half axle (5) in this transmission case (8), and wherein drive screw (9) is by the driving mechanism driven rotary;
B, in described transmission case (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, the 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 circumferential surface, 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, differential speed rear axle assembly of sand beach vehicle according to claim 1, it is characterized in that: described driving mechanism is made of motor (15), worm screw (16) and worm gear (17), wherein the output shaft of 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, differential speed rear axle assembly of sand beach vehicle according to claim 2, it is characterized in that: on transmission case (8), be provided with first near switch (18) and second near switch (19), two contact-making switches (18,19) receive the position signal of first shifting block (11) and second shifting block (12) respectively, feed back to control knob (20), control motor (15) work.
4, 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 knob (20) successively near switch (18), second, first contact-making switch (18) is connected with an end of motor (15) with second common port near switch (19), and the other end of motor (15) and described control knob (20) join.
5, differential speed rear axle assembly of sand beach vehicle according to claim 3 is characterized in that: be in series with signaling lamp (21) between control knob (20) and first is near switch (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201109233U CN2929356Y (en) | 2006-07-11 | 2006-07-11 | Differential rear axle assembly of beach vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201109233U CN2929356Y (en) | 2006-07-11 | 2006-07-11 | Differential rear axle assembly of beach vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929356Y true CN2929356Y (en) | 2007-08-01 |
Family
ID=38307738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201109233U Expired - Lifetime CN2929356Y (en) | 2006-07-11 | 2006-07-11 | Differential rear axle assembly of beach vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929356Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467303C (en) * | 2006-07-10 | 2009-03-11 | 力帆实业(集团)股份有限公司 | Differential speed rear axle assembly of sand beach vehicle |
| CN104534086A (en) * | 2014-12-23 | 2015-04-22 | 东风汽车公司 | Electronically-control type differential lock control mechanism and method |
-
2006
- 2006-07-11 CN CNU2006201109233U patent/CN2929356Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100467303C (en) * | 2006-07-10 | 2009-03-11 | 力帆实业(集团)股份有限公司 | Differential speed rear axle assembly of sand beach vehicle |
| CN104534086A (en) * | 2014-12-23 | 2015-04-22 | 东风汽车公司 | Electronically-control type differential lock control mechanism and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIFAN INDUSTRIAL (GROUP) CO. Free format text: FORMER NAME OR ADDRESS: CHONGQING LIFAN INDUSTRY (GROUP) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400037 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400037 Patentee before: Lifan Industry (Group) Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060711 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |