CN219888640U - Transmission device and heavy vehicle - Google Patents
Transmission device and heavy vehicle Download PDFInfo
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- CN219888640U CN219888640U CN202320743861.3U CN202320743861U CN219888640U CN 219888640 U CN219888640 U CN 219888640U CN 202320743861 U CN202320743861 U CN 202320743861U CN 219888640 U CN219888640 U CN 219888640U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000004308 accommodation Effects 0.000 description 4
- 230000009194 climbing Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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Abstract
The utility model discloses a transmission device and a heavy vehicle, wherein the transmission device comprises: a planetary gear set having a first input, a second input, and an output; the power input shaft and the variable speed sliding sleeve are arranged on the power input shaft, and the variable speed sliding sleeve is connected with the first input end or the second input end in a switching mode so as to change the output capacity of the output end. According to the utility model, through the cooperation of the speed change sliding sleeve and the planetary gear set, the connection of the power input shaft, the first input end and the second input end is quickly switched by the speed change sliding sleeve, so that the volume is reduced, and the weight is reduced.
Description
Technical Field
The utility model relates to the technical field of heavy vehicles, in particular to a transmission device and a heavy vehicle.
Background
In the related art, a two-speed-ratio drive axle in a vehicle adopts two gears to realize the two speed ratios, and the volume and the weight are relatively large.
Disclosure of Invention
In view of this, the present utility model aims to propose a transmission.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a transmission, comprising: a planetary gear set having a first input, a second input, and an output; the power input shaft and the speed change sliding sleeve are arranged on the power input shaft, and the speed change sliding sleeve is connected with the first input end or the second input end in a switching mode so as to change the output capacity of the output end.
According to the transmission device provided by the embodiment of the utility model, the connection between the power input shaft and the first input end and the connection between the power input shaft and the second input end are quickly switched by utilizing the speed change sliding sleeve through the cooperation of the speed change sliding sleeve and the planetary gear set, so that the volume and the weight are reduced.
In addition, the transmission device according to the above embodiment of the present utility model may have the following additional technical features:
according to some embodiments of the utility model, the shift sleeve is movably disposed on the power input shaft.
According to some embodiments of the utility model, the planetary gear set comprises: a ring gear configured as the first input; the first planet wheel is connected with the gear ring, a planet carrier is arranged on the first planet wheel, and the planet carrier is configured as the output end; and a sun gear connected to the first planetary gear, the sun gear being configured as the second input.
According to some embodiments of the utility model, the gear ring is provided with a first braking member, and the first braking member can lock the gear ring.
According to some embodiments of the utility model, the first brake locks the ring gear when the shift sleeve is connected to the sun gear.
According to some embodiments of the utility model, a second brake is provided on the sun gear, which second brake can lock the sun gear.
According to some embodiments of the utility model, the second brake locks the sun gear when the shift sleeve is coupled to the ring gear.
According to some embodiments of the utility model, the transmission further comprises: the planetary gear set is arranged in the accommodating space; the differential mechanism is arranged in the accommodating space and is connected with the planet carrier, and the differential mechanism is used for driving the axle to rotate.
According to some embodiments of the utility model, the differential comprises: a first gear, the first gear abutting the planet carrier; a second gear coaxial with the axle, the second gear engaging the first gear; the second planet wheel is linked with the second gear; and the third gear is arranged on the axle and is meshed with the second planet gear.
Another object of the utility model is to propose a heavy vehicle.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a heavy vehicle comprising a transmission as described above. The advantages of the heavy vehicle and the transmission are the same as those of the prior art, and are not described in detail here.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic view of the structure of a transmission according to the present utility model.
Reference numerals:
100. a transmission device;
10. a housing; 11. an accommodation space; 12. a power input shaft;
20. a planetary gear set; 21. a gear ring; 211. a first braking member; 22. a first planet; 23. a sun gear; 231. a second brake member; 24. a planet carrier;
30. a variable speed sliding sleeve;
40. a differential; 41. a first gear; 42. a second gear; 43. a second planet wheel; 44. a third gear;
200. an axle.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to fig. 1 in connection with an embodiment.
According to the transmission 100 of the embodiment of the present utility model, the transmission 100 includes: a planetary gear set 20, a power input shaft 12 and a shift sleeve 30.
The planetary gear set 20 has a first input, a second input and an output.
The speed-changing sliding sleeve 30 is arranged on the power input shaft 12, and the speed-changing sliding sleeve 30 is connected with the first input end or the second input end in a switching way so as to change the output capacity of the output end.
The shift sliding sleeve 30 is disposed on the power input shaft 12, and the shift sliding sleeve 30 is connected with the first input end and the second input end in a switching manner, that is, the shift sliding sleeve 30 may be connected with the first input end to transmit the power input by the power input shaft 12 to the first input end, or the shift sliding sleeve 30 may be connected with the second input end to transmit the power input by the power input shaft 12 to the second input end, where the output capabilities of the output ends are different in two manners, for example, the speed ratio is different in two manners, and the torque is different in two manners.
In the related art, the double-speed-ratio drive axle adopts two gears to realize double speed ratios, has relatively large volume and weight, influences the cargo carrying capacity of the vehicle, and reduces the operation income of the vehicle.
The utility model uses the speed change sliding sleeve 30 to rapidly switch the connection with the first input end and the second input end of the planetary gear set 20, rapidly changes the power transmission mode, and uses the planetary gear set 20 to make the structure of the transmission device 100 more compact, smaller and lighter.
According to some embodiments of the present utility model, a shift sleeve 30 is movably disposed on the power input shaft 12. By movably positioning the shift sleeve 30 on the power input shaft 12, the movement of the shift sleeve 30 is more stable and is rapidly switched.
According to some embodiments of the present utility model, the planetary gear set 20 includes: a ring gear 21, a first planet wheel 22 and a sun gear 23.
The ring gear 21 is configured as a first input.
The first planet wheel 22 is connected to the ring gear 21, and a planet carrier 24 is provided on the first planet wheel 22, the planet carrier 24 being designed as an output.
The sun gear 23 is connected to the first planet gear 22, and the sun gear 23 is designed as a second input.
That is, the power input from the power input shaft 12 can be input to the planetary gear set 20 through the ring gear 21, and the planetary gear set 20 is output from the carrier 24, realizing a small speed ratio, high vehicle speed; the power input by the power input shaft 12 can be input into the planetary gear set 20 through the sun gear 23, and the planetary gear set 20 is output from the planet carrier 24, so that the high speed ratio and the high torque performance can be realized.
According to some embodiments of the present utility model, the ring gear 21 is provided with a first brake 211, and the first brake 211 may lock the ring gear 21. By providing the first brake 211 to lock the ring gear 21, the sun gear 23 and the carrier 24 are facilitated to be linked.
According to some embodiments of the present utility model, when the shift sleeve 30 is coupled to the sun gear 23, the first brake 211 locks the ring gear 21. When the shift sleeve 30 is connected to the sun gear 23, the first brake 211 locks the ring gear 21 against movement of the ring gear 21 so that power is completely transmitted from the sun gear 23 to the carrier 24.
According to some embodiments of the present utility model, the sun gear 23 is provided with a second brake 231, and the second brake 231 can lock the sun gear 23. By providing the second brake 231 to lock the sun gear 23, the interlocking of the ring gear 21 and the carrier 24 is facilitated.
According to some embodiments of the present utility model, the second brake 231 locks the sun gear 23 when the shift sleeve 30 is coupled to the ring gear 21. When the shift sleeve 30 is connected to the ring gear 21, the second brake 231 locks the sun gear 23, preventing the sun gear 23 from moving, so that power is completely transmitted from the ring gear 21 to the carrier 24.
Specifically, the brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member (or moving machine).
According to some embodiments of the utility model, the transmission 100 further comprises: the housing 10 and the differential 40.
The housing 10 has an accommodation space 11, and the planetary gear set 20 is provided in the accommodation space 11. A differential gear 40 is provided in the accommodation space 11, the differential gear 40 is connected to the carrier 24, and the differential gear 40 is used for driving the axle 200 to rotate. By providing the housing 10 to house the planetary gear set 20 and the differential 40 at the same time, the structure is simplified, making the whole more compact.
The differential mechanism 40 is connected with the two axles 200, and the differential mechanism 40 drives the two axles 200 to rotate in a differential mode, so that the rotation speed difference of the two wheels is adjusted.
According to some embodiments of the utility model, differential 40 includes: a first gear 41, a second gear 42, a second planet 43 and a third gear 44.
The first gear 41 abuts the carrier 24.
The second gear 42 is coaxial with the axle 200, and the second gear 42 engages the first gear 41.
The second planetary gear 43 is linked with the second gear 42.
A third gear 44 is provided on the axle 200, the third gear 44 engaging the second planet 43.
Wherein, the first gear 41 is adjacent to the planet carrier 24, the power output by the planet carrier 24 is input to the differential mechanism 40, and the adjacent planet carrier 24 and the first gear 41 are compact in structure; the second gear 42 is engaged with the first gear 41, the second planetary gear 43 is linked with the second gear 42, the third gear 44 is engaged with the second planetary gear 43, and the power input to the differential mechanism 40 is transmitted to the third gear 44 through the first gear 41, the second gear 42, and the second planetary gear 43.
In some embodiments, the number of the third gears 44 is two, the two third gears 44 are correspondingly connected with the two axles 200, the two axles 200 rotate under the action of the differential mechanism 40, and the two axles 200 can move in a differential speed.
The transmission 100 according to the embodiment of the present utility model is described in detail below with reference to the accompanying drawings.
The transmission 100 includes: a housing 10, a power input shaft 12, a shift sleeve 30, a planetary gear set 20, a differential 40.
The housing 10 has a receiving space 11, the power input shaft 12 penetrates the receiving space 11, and the shift sliding sleeve 30 is movably provided on the power input shaft 12.
The planetary gear set 20 includes: a ring gear 21, a first planet wheel 22, and a sun gear 23.
The ring gear 21 is configured as a first input of the planetary gear set 20, a first brake 211 being provided on the ring gear 21, the first brake 211 being lockable to the ring gear 21.
The first planet wheel 22 is connected to the ring gear 21, and a planet carrier 24 is provided on the first planet wheel 22, the planet carrier 24 being designed as an output.
The sun gear 23 is connected to the first planet gear 22, and the sun gear 23 is designed as a second input. The sun gear 23 is provided with a second braking member 231, and the second braking member 231 can lock the sun gear 23.
Wherein, the variable speed sliding sleeve 30 is switched to connect with the first input end or the second input end so as to change the output capacity of the output end.
The differential 40 includes: a first gear 41, a second gear 42, a second planet 43 and a third gear 44.
The first gear 41 abuts the carrier 24. The second gear 42 is coaxial with the axle 200, and the second gear 42 engages the first gear 41. The second planetary gear 43 is linked with the second gear 42. The number of the third gears 44 is two, the two third gears 44 are correspondingly arranged on the two axles 200, and the third gears 44 are meshed with the second planetary gears 43.
When the speed change sliding sleeve 30 slides leftwards to be meshed with the gear ring 21 during the plain working condition operation, the sun gear 23 is locked through the second braking part 231, the planet carrier 24 is connected with the first gear 41 of the differential mechanism 40 for outputting, and the small speed ratio and the high vehicle speed are realized.
When the mountain working condition is operated, the speed change sliding sleeve 30 slides rightwards to be meshed with the sun gear 23, the gear ring 21 is locked through the first braking piece 211, the planet carrier 24 is connected with the first gear 41 of the differential mechanism 40 for outputting, and the high speed ratio and the high torque performance are realized.
In the related art, a rear drive axle for a heavy-duty car is generally a fixed single-speed ratio drive axle, and the drive axle is greatly constrained by operating conditions. The speed of the tractor used for the plain working condition is relatively high, and the speed of the rear drive axle is generally required to be relatively low. A tractor for mountain area operating mode, to satisfy the demand of climbing performance, need adopt big speed ratio transaxle, fixed single speed ratio transaxle can't be better compromise the compound operating mode demand that has plain operating mode and mountain area operating mode simultaneously. Many vehicles only take a relatively balanced intermediate value to design and match, and the operation efficiency of the vehicles is reduced.
Meanwhile, the double-speed-ratio drive axle adopts two gears to realize double speed ratios, has relatively large volume and weight, influences the cargo carrying capacity of the vehicle and reduces the operation income of the vehicle.
The transmission device 100 of the utility model freely selects the small speed ratio or the large speed ratio output according to the requirements, can simultaneously consider the high vehicle speed requirement of the plain working condition and the high climbing performance requirement of the mountain working condition, and improves the operation efficiency. Compared with the existing double-speed ratio drive axle adopting a two-gear structure, the double-speed ratio drive axle has the advantages of more compact structure, smaller volume and lighter weight, reduces the influence on the cargo carrying capacity of the vehicle, and improves the operation income of the vehicle.
A heavy vehicle according to an embodiment of the utility model comprises a transmission 100 as described above.
According to the heavy vehicle provided by the embodiment of the utility model, the transmission device 100 is more compact in structure, smaller in size and lighter in weight, so that the influence on the cargo carrying capacity of the vehicle is reduced, and the operation income of the vehicle is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (9)
1. A transmission (100), characterized by comprising:
a planetary gear set (20), the planetary gear set (20) having a first input, a second input, and an output;
the power input shaft (12) and variable speed sliding sleeve (30), variable speed sliding sleeve (30) are located power input shaft (12), variable speed sliding sleeve (30) switch connect first input end or second input end, in order to change the output ability of output, wherein, planetary gear set (20) include:
-a ring gear (21), the ring gear (21) being configured as the first input;
-a first planet wheel (22), the first planet wheel (22) being connected to the ring gear (21), a planet carrier (24) being provided on the first planet wheel (22), the planet carrier (24) being configured as the output;
-a sun gear (23), said sun gear (23) being connected to said first planet wheel (22), said sun gear (23) being configured as said second input.
2. The transmission (100) of claim 1, wherein the shift sleeve (30) is movably disposed on the power input shaft (12).
3. The transmission (100) according to claim 1, wherein a first brake (211) is provided on the ring gear (21), the first brake (211) being adapted to lock the ring gear (21).
4. A transmission (100) according to claim 3, wherein the first braking member (211) locks the ring gear (21) when the shift sleeve (30) is connected to the sun gear (23).
5. The transmission (100) according to claim 1, characterized in that a second brake (231) is provided on the sun wheel (23), the second brake (231) being capable of locking the sun wheel (23).
6. The transmission (100) according to claim 5, wherein the second braking member (231) locks the sun gear (23) when the shift sleeve (30) is connected to the ring gear (21).
7. The transmission (100) of claim 1, further comprising:
a housing (10), wherein the housing (10) is provided with a containing space (11), and the planetary gear set (20) is arranged in the containing space (11);
the differential mechanism (40) is arranged in the accommodating space (11), the differential mechanism (40) is connected with the planet carrier (24), and the differential mechanism (40) is used for driving the axle (200) to rotate.
8. The transmission (100) of claim 7, wherein the differential (40) includes:
-a first gear (41), said first gear (41) abutting said planet carrier (24);
-a second gear (42), said second gear (42) being coaxial with said axle (200), said second gear (42) engaging said first gear (41);
-a second planet wheel (43), the second planet wheel (43) linking the second gear (42);
and a third gear (44), wherein the third gear (44) is arranged on the axle (200), and the third gear (44) is meshed with the second planet gear (43).
9. A heavy vehicle, characterized by comprising a transmission (100) according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320743861.3U CN219888640U (en) | 2023-04-06 | 2023-04-06 | Transmission device and heavy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320743861.3U CN219888640U (en) | 2023-04-06 | 2023-04-06 | Transmission device and heavy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219888640U true CN219888640U (en) | 2023-10-24 |
Family
ID=88407774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320743861.3U Active CN219888640U (en) | 2023-04-06 | 2023-04-06 | Transmission device and heavy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219888640U (en) |
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2023
- 2023-04-06 CN CN202320743861.3U patent/CN219888640U/en active Active
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