CN201348027Y - Automobile differential mechanism - Google Patents
Automobile differential mechanism Download PDFInfo
- Publication number
- CN201348027Y CN201348027Y CNU2008201998547U CN200820199854U CN201348027Y CN 201348027 Y CN201348027 Y CN 201348027Y CN U2008201998547 U CNU2008201998547 U CN U2008201998547U CN 200820199854 U CN200820199854 U CN 200820199854U CN 201348027 Y CN201348027 Y CN 201348027Y
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- China
- Prior art keywords
- gear
- planetary carrier
- worker
- bevel gear
- bevel
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Abstract
The utility model relates to an automobile differential mechanism; both ends of a housing are provided with an end cover which is connected with the housing in a detachable way, and two end outputs on both ends of the housing extends out of the end cover, and a I-shaped planetary gear frame is horizontally arranged inside an inner cavity of the housing, and each transmission gear is symmetrically arranged on the I-shaped planetary gear frame from left to right, and the axis of a power input shaft is vertical to and intersected with the axis of the I-shaped planetary gear frame, and two bevel gears with both surfaces being projected outwards are symmetrically arranged on the middle part of the I-shaped planetary gear frame, and both ends of the I-shaped planetary gear frame are symmetrically provided with a rotating shaft, and each rotating shaft is respectively provided with a planetary bevel gear, and the outer diameter of the planetary gear frame is provided with a straight gear, and the spoke of the planetary gear frame is provided with a rotating shaft, and the rotating shaft is connected with a conical planetary gear, and the inner end of the two output shafts is fixedly connected with an end surface bevel gear, and the other end which is contacted with the end cover of the end surface bevel gear is provided with a push bearing, and the housing is provided with a transmission shaft in a rotating way, and both ends of each transmission shaft are fixedly connected with a gear. The automobile differential mechanism adopts full mechanical transmission, and is safe and reliable, and has high efficiency; all components and parts of the automobile differential mechanism are of the conventional components and parts which can be made of the conventional materials in the conventional processing craftwork.
Description
Technical field
The utility model relates to a kind of vehicle transmission parts, and concrete is a kind of automobile differential.
Background technique
Differential mechanism is the main part that automobile drives sedan-chair, mainly contains differential lock, friction type differential mechanism, free wheel type differential mechanism, gear ratio differential mechanism etc.Structure by the differential mechanism of the founder Louis Reynolds of French Renault invention is by two semiaxis of planetary pinion engagement the earliest, and transmission shaft is by meshing with planetary carrier, when planetary pinion rotates, realize the rotation of two-semiaxle differential, but a fatal defective is arranged, the structure that is the planet differential mechanism always attempts power is passed on to little semiaxis one end of suffered resistance, therefore when an end semiaxis loses adhesion, power will all be delivered to this end, even if the other end has enough adhesion, vehicle also can't be extricated oneself from a predicament voluntarily.
Summary of the invention
The purpose of this utility model provides a kind of technological scheme of automobile differential, can solve when a certain end loses adhesion by the automobile differential of this scheme implementation, and from then on power can not hold loss, can this end rotating speed of locking; When being reduced in this end and obtaining adhesion once more, the bump on tire and ground and resistance.The utility model is all-gear drive, and mechanical transfer efficient height is safe and reliable.
The technical solution of the utility model is: a kind of automobile differential, comprise power input shaft (6), pto, driving gear and shell, it is characterized in that, input shaft (6) lower end is fixedly connected with bevel gear (7), shell (18) hollow, two ends are provided with the end cap (20) that removably connects, two ends output shaft (1) and (11) are by stretching out in the end cap, be rotatably connected with end cap, inner chamber at shell (18) has been horizontally disposed with worker's shape planetary carrier (3), worker's shape planetary carrier bilateral symmetry, be located at each the driving gear bilateral symmetry on worker's shape planetary carrier, the axis of power input shaft (6) and worker's shape planetary carrier axis (14) are vertical mutually and intersect, worker's shape planetary pinion is erected at shell inner cavity, below worker's shape planetary carrier, the shell inner cavity relative with bevel gear (7) be rotating to be connected with bevel gear (15), being provided with two and being rotatably connected in the middle part symmetry of worker's shape planetary carrier, two-sided evagination bevel gear (5) and (8), two-sided evagination bevel gear (5) and (8) and bevel gear (7) engagement, all claim to be provided with fixedly connected at least 2 rotating shafts (16) at worker's shape planetary carrier two ends, be respectively equipped with the bevel planet gear that is rotatably connected (17) and (13) in each rotating shaft (16), mesh with two-sided evagination bevel gear (5) and (8) respectively bevel planet gear (13) and (17) inboard, bevel planet gear (13) and (17) outside and adjacent gear (4) and (9) engagement, gear (4) and (9) both ends of the surface are the bevel gear of evagination, outer radius is a spur gear, planetary carrier (2) and (10) for be rotatably connected adjacent with (9) outside with gear (4), planetary carrier (2) and (10) outer radius are spur gear, on the spoke of planetary carrier (2) and (10), at least respectively be provided with 2～4 rotating shafts (29), taper planetary pinion (28) has been rotatably connected in the rotating shaft, the output shaft at two ends (1) and (11) are inner fixedlys connected end face bevel gear (12), (21), bevel gear (28) engagement on end face bevel gear (21) and planetary carrier (2) and (10), end face bevel gear (21) end in addition is provided with thrust-bearing (20) with the end cap contacting point; On frame rotating be connected with 4 with the parallel transmission shaft of worker's shape planetary carrier, the two ends of transmission shaft (22), (23), (24) and (25) all are fixedly connected with gear (26) and (27), gear (26) on two relative transmission shafts and (27) respectively with planetary carrier on spur gear and the spur gear engagement on the gear (2), (9), the gear (26) on other two transmission shafts and (27) respectively with planetary carrier on spur gear and the spur gear on the gear (4), (10) mesh.
Described bevel gear (7) is identical with (17) number of teeth with planetary pinion (13).The spur gear of the spur gear of gear (4) and planetary carrier (10) meshes with transmission shaft (22), transmission shaft (24) simultaneously, the spur gear while of the spur gear of gear (9), planetary carrier (2) and transmission shaft (23), transmission shaft (25) engagement.
Worker's shape planetary carrier bilateral symmetry in the utility model, each driving gear bilateral symmetry in the differential mechanism, the present invention by accompanying drawing as can be known, equate with the rotating speed of power input shaft meshed gears 5, gear 8, direction is opposite, and worker's shape planetary carrier two planetary pinions 13,17 be subjected to force direction also just in time opposite, so gear 4 is identical with the torque direction of gear 8, gear 9 is identical with the torque direction of gear 5; The spur gear of the spur gear of gear 4, planetary carrier 10 meshes with transmission shaft 25, transmission shaft 23 simultaneously, gear 9,2 whiles of planetary carrier and transmission shaft 24, transmission shaft 22 engagements.
If: gear 5 is θ with the rotating speed of gear 8
5, θ
8, θ
5+ θ
8=0, the rotating speed of worker's shape planetary carrier is θ
The worker, gear 4 is θ
4, planetary carrier 10 is i to the ratio of the rotation between the gear 4
10, the rotating speed of planetary carrier 10 is i
10θ
4, gear 9 is θ
9, establishing planetary carrier 2 is i to the velocity ratio of gear 9
2, then planetary carrier 2 rotating speed be i
2θ
9, so output shaft 1 rotating speed θ
1=2i
2θ
9-i
10θ
4, the rotating speed θ of output shaft 11
11=2i
10θ
4-i
2θ
9, while θ
4=2 θ
The worker-θ
5, θ
9=2 θ
The worker-θ
8
Calculate for convenient, establish i
10, i
2All equal 1, then: when vehicle was kept straight on, the rotating speed of two output shafts was equal, at this moment θ
The workerEqual 0, and the torque * i output torque and that equal power input shaft, i is velocity ratio * 1/3 of power input shaft 6 and gear 5, and work as Ackermann steer angle, two output shaft rotating speeds do not wait, the output shaft that rotating speed is big will obtain the extra torque in the same way of wheel and ground friction, and worker's shape planetary carrier rotates, at this moment θ
The worker≠ 0, realize speed discrepancy.
When some axle shafts lose adhesion, the adhesion of supposing output shaft 1 loses adhesion, the power of input shaft affacts worker's shape planetary carrier by gear 5, gear 8, decompose on gear 4 and the gear 9, the power of gear 4 is by the transmission of transmission shaft 22 and 24 at this moment, and merge by planetary carrier 10 with the power of gear 9, by hesive output shaft 11 outputs.
The utility model can be realized the fundamental function of differential, and promptly two output shafts are realized differential output as required; When a certain end lost adhesion, from then on power can not hold loss, can this end rotating speed of locking; When being reduced in this end and obtaining adhesion once more, the bump on tire and ground and resistance; The utility model adopts all-gear drive, and mechanical transfer efficient height is safe and reliable.The utility model can be widely used in the interaxial differential and the center differential of various automobiles, because two output shaft sense of rotation do not wait, as interaxial differential as vehicle, need at one end increase a reversing device, but during as center differential, only need arrange the engagement system of two output shafts and front and back interaxial differential, just can well solve.The utility model is full mechanical transmission, and is safe and reliable, and efficient height, component all are conventional component, can adopt conventional material and conventional processing technology to make.The present invention is skillfully constructed, and compact structure is safe and reliable, is easy to processing, is a kind of novel automobile differential.
Description of drawings
Fig. 1 is a structural representation plan view of the present utility model,
Fig. 2 is a C-C sectional view of the present utility model,
Fig. 3 is an A-A sectional view of the present utility model,
Fig. 4 is a B-B sectional view of the present utility model.
Specific implementation method
It is 10 bevel gear (7) that input shaft (6) lower end is fixedly connected with the number of teeth, shell (18) hollow, two ends are provided with the end cap (20) that connects with fastening piece, two ends output shaft (1) and (11) are by stretching out in the end cap, be rotatably connected with end cap, inner chamber at shell (18) has been horizontally disposed with worker's shape planetary carrier (3), worker's shape planetary carrier bilateral symmetry, be located at each the driving gear bilateral symmetry on worker's shape planetary carrier, the axis of power input shaft (6) and worker's shape planetary carrier axis (14) are vertical mutually and intersect, worker's shape planetary pinion is erected at shell inner cavity, below worker's shape planetary carrier, the shell inner cavity relative with bevel gear (7) be rotating, and to be connected with the number of teeth be 10 bevel gear (15), being provided with two and being rotatably connected in the middle part symmetry of worker's shape planetary carrier, the inboard number of teeth is 30 two-sided evagination bevel gear (5) and (8), two-sided evagination bevel gear (5) and (8) and bevel gear (7) engagement, be arranged with fixedly connected 4 rotating shafts (16) at worker's shape planetary carrier two ends, be respectively equipped with in each rotating shaft (16) and be rotatably connected, the number of teeth is 10 bevel planet gear (17) and (13), bevel planet gear (13) and (17) are respectively 30 two-sided evagination bevel gear (5) and gear (8) engagement with the outside number of teeth, bevel gear (13) and (17) is with adjacent simultaneously, the inboard number of teeth is gear (4) and (9) engagement of 30, gear (4) and (9) both ends of the surface are the bevel gear of evagination, outer radius is that the number of teeth is 60 spur gear, planetary carrier (2) and (10) for be rotatably connected adjacent with (9) outside with gear (4), planetary carrier (2) and (10) outer radius are that the number of teeth is 60 spur gear, on the spoke of planetary carrier (2) and (10), respectively be provided with 2-4 root rotating shaft (29), planet angular wheel (28) has been rotatably connected in the rotating shaft, the output shaft at two ends (1) and (11) are inner, and to fixedly connected the number of teeth be 30 end face bevel gear (21), bevel gear (28) engagement on end face bevel gear (21) and planetary carrier (2) and (10), end face bevel gear (21) end in addition is provided with thrust-bearing (20) with the end cap contacting point; On frame rotating be connected with 4 with the parallel transmission shaft of worker's shape planetary carrier, it is 10 gear (26) and (27) that each transmission shaft two ends is fixedly connected with the number of teeth, the gear (26) on every transmission shaft and (27) respectively with planetary carrier on spur gear and the spur gear engagement on the gear (2), (10), (4), (9).
The spur gear on spur gear on planetary carrier (2), (10) and gear (4), (9) and the velocity ratio of gear (26) and (27) are (1): (1)
The spur gear of the spur gear of gear 4, planetary carrier 10 meshes with transmission shaft 22, transmission shaft 24 simultaneously, gear 9,2 whiles of planetary carrier and transmission shaft 23, transmission shaft 25 engagements.
By above concrete gear number of teeth relation, the drive connection that can calculate input shaft and output shaft is:
If:
1, input shaft rotational speed is: θ
7
2, the rotating speed of two output shafts is respectively: θ
1, θ
11
3, the rotating speed of gear 5,8 is respectively: θ
5, θ
8
4, the planetary rotating speed of worker's shape is: θ
The worker
Because the rotating speed of gear 5,8 equates that direction is opposite, so: θ
5=-θ
8, be made as θ
5Just, then have:
θ
7=θ
1-2 θ
The worker
θ
7=-(θ
11-2 θ
The worker)
Illustrate: input shaft 7 is not a fixed value to the velocity ratio of output shaft 1 or 11, and depends on the rotating speed θ of worker's shape planetary carrier
The worker, work as θ
The worker=0 o'clock, velocity ratio was 1;
θ
7＝(θ
1-θ
11)/2；
Illustrate: tachy sterol regularly at transfer input shaft, it is linear relationship that the rotating speed difference between two output shafts changes, i.e. output shaft 1 rotating speed θ
1The absolute value that increases equals output shaft 11 rotating speed θ
11The absolute value that reduces, vice versa.
Claims (3)
1, a kind of automobile differential, comprise power input shaft (6), pto, driving gear and shell, it is characterized in that, input shaft (6) lower end is fixedly connected with bevel gear (7), shell (18) hollow, two ends are provided with the end cap (20) that removably connects, two ends output shaft (1) and (11) are by stretching out in the end cap, be rotatably connected with end cap, inner chamber at shell (18) has been horizontally disposed with worker's shape planetary carrier (3), worker's shape planetary carrier bilateral symmetry, be located at each the driving gear bilateral symmetry on worker's shape planetary carrier, the axis of power input shaft (6) and worker's shape planetary carrier axis (14) are vertical mutually and intersect, worker's shape planetary pinion is erected at shell inner cavity, below worker's shape planetary carrier, the shell inner cavity relative with bevel gear (7) be rotating to be connected with bevel gear (15), being provided with two and being rotatably connected in the middle part symmetry of worker's shape planetary carrier, two-sided evagination bevel gear (5) and (8), two-sided evagination bevel gear (5) and (8) and bevel gear (7) engagement, all claim to be provided with fixedly connected at least 2 rotating shafts (16) at worker's shape planetary carrier two ends, be respectively equipped with the bevel planet gear that is rotatably connected (17) and (13) in each rotating shaft (16), mesh with two-sided evagination bevel gear (5) and (8) respectively bevel planet gear (13) and (17) inboard, bevel planet gear (13) and (17) outside and adjacent gear (4) and (9) engagement, gear (4) and (9) both ends of the surface are the bevel gear of evagination, outer radius is a spur gear, planetary carrier (2) and (10) for be rotatably connected adjacent with (9) outside with gear (4), planetary carrier (2) and (10) outer radius are spur gear, on the spoke of planetary carrier (2) and (10), at least respectively be provided with 2～4 rotating shafts (29), taper planetary pinion (28) has been rotatably connected in the rotating shaft, the output shaft at two ends (1) and (11) are inner fixedlys connected end face bevel gear (12), (21), bevel gear (28) engagement on end face bevel gear (21) and planetary carrier (2) and (10), end face bevel gear (21) end in addition is provided with thrust-bearing (20) with the end cap contacting point; On frame rotating be connected with 4 with the parallel transmission shaft of worker's shape planetary carrier, the two ends of transmission shaft (22), (23), (24) and (25) all are fixedly connected with gear (26) and (27), gear (26) on two relative transmission shafts and (27) respectively with planetary carrier on spur gear and the spur gear engagement on the gear (2), (9), the gear (26) on other two transmission shafts and (27) respectively with planetary carrier on spur gear and the spur gear on the gear (4), (10) mesh.
2, a kind of automobile differential as claimed in claim 1 is characterized in that, bevel gear (7) is identical with (17) number of teeth with planetary pinion (13).
3, a kind of automobile differential as claimed in claim 1, it is characterized in that, the spur gear of the spur gear of gear (4) and planetary carrier (10) meshes with transmission shaft (22), transmission shaft (24) simultaneously, the spur gear while of the spur gear of gear (9), planetary carrier (2) and transmission shaft (23), transmission shaft (25) engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201998547U CN201348027Y (en) | 2008-12-02 | 2008-12-02 | Automobile differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201998547U CN201348027Y (en) | 2008-12-02 | 2008-12-02 | Automobile differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348027Y true CN201348027Y (en) | 2009-11-18 |
Family
ID=41367497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201998547U Expired - Fee Related CN201348027Y (en) | 2008-12-02 | 2008-12-02 | Automobile differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348027Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975262A (en) * | 2010-10-25 | 2011-02-16 | 张维国 | Power difference-adjusting differential |
-
2008
- 2008-12-02 CN CNU2008201998547U patent/CN201348027Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975262A (en) * | 2010-10-25 | 2011-02-16 | 张维国 | Power difference-adjusting differential |
| CN101975262B (en) * | 2010-10-25 | 2012-12-12 | 张维国 | Power difference-adjusting differential |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20101202 |