CN209818694U - Three-shaft two-gear automatic transmission - Google Patents
Three-shaft two-gear automatic transmission Download PDFInfo
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- CN209818694U CN209818694U CN201822038482.6U CN201822038482U CN209818694U CN 209818694 U CN209818694 U CN 209818694U CN 201822038482 U CN201822038482 U CN 201822038482U CN 209818694 U CN209818694 U CN 209818694U
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Abstract
The utility model provides a two grades of automatic gearbox of three shaft type, its gearshift is simple and convenient, turn round the matter ratio big and have higher reliability, adopt motor speed governing gear shift, strike for a short time, the noise is low, and the gear shift is smooth-going, has promoted the gear shift travelling comfort, the dynamic property and the economic nature of the whole car that matches. It includes the gearbox body, the gearbox body includes first casing, second casing, be formed with the installation cavity after first casing, the equipment of second casing, the input shaft of evagination on the front end wall of first casing, the evagination of input shaft is held outward there is driving motor, being located of input shaft the outer loop cover of installation cavity is equipped with first master gear, the rear end center of input shaft is provided with indent axle center hole, and the front end of output shaft passes through the bearing coaxial arrangement in indent axle center hole, the rear end of output shaft runs through the rear end wall of second casing arranges, the output shaft be located the part of installation cavity is equipped with the second master gear through the bearing cover.
Description
Technical Field
The utility model relates to a technical field of transmission derailleur specifically is two grades of automatic transmissions of three-shaft type.
Background
The automobile speed changer transfers the power of the engine to the transmission shaft with proper torque and rotating speed through gear transmission and gear shifting of the speed change mechanism so as to meet the requirements of the automobile on traction and running speed under different road conditions. The speed variator used in available commercial light truck has five-gear three-shaft main structure, complicated shift mechanism, single-cone synchronizer and cast iron cover. The gear shifting comfort, the dynamic property and the economic index of the automobile are difficult to improve, so that the requirements of the power matching of the light truck commercial vehicle on a transmission system are difficult to meet.
Disclosure of Invention
To the problem, the utility model provides a three-shaft type two grades of automatic gearbox, its gearshift is simple and convenient, turn round the matter ratio big and have higher reliability, adopt motor speed governing gear shift, strike for a short time, the noise is low, and the gear shift is smooth-going, has promoted the gear shift travelling comfort, the dynamic property and the economic nature of the whole car that matches.
Three-shaft two-gear automatic transmission is characterized in that: the transmission case comprises a transmission case body, the transmission case body comprises a first shell and a second shell, an installation cavity is formed after the first shell and the second shell are assembled, an input shaft protrudes out from the front end wall of the first shell, a driving motor is connected with the protruding end of the input shaft in an external mode, a first main gear is sleeved on an outer ring of the input shaft, which is located in the installation cavity, a concave shaft center hole is formed in the center of the rear end of the input shaft, the front end of an output shaft is coaxially arranged in the concave shaft center hole through a bearing, the rear end of the output shaft penetrates through the rear end wall of the second shell to be arranged, a second main gear is sleeved on a part, which is located in the installation cavity, of the output shaft through a bearing, a synchronizer is sleeved on the front end part, which corresponds to the second main gear, and moves axially between the first main gear and the second main gear, the two end surfaces of the first synchronizer are respectively arranged towards the respective meshing gear rings of the first main gear and the second main gear, the mounting cavity is further provided with a transmission shaft, the transmission shaft is respectively provided with a normally meshing gear and a second intermediate gear from front to back, the normally meshing gear is meshed and connected with the first main gear at the corresponding position, the second intermediate gear is meshed and connected with the second main gear at the corresponding position, the outer ring surface of the synchronizer is provided with an inwards concave ring groove, a shifting fork shaft is further arranged in the mounting cavity, two ends of the shifting fork shaft are respectively mounted in corresponding shifting fork shaft guide holes through shifting fork shaft bushings, a shifting fork is fixedly sleeved on the shifting fork shaft, the driving end of the shifting fork extends into the inwards concave ring groove, the driving end of the shifting fork drives the synchronizer to drive and shift gears along the axial direction of an output shaft, and at least one section of the shifting fork shaft in the length direction is provided with a rack structure, the rack structure is meshed with an output gear of the gear shifting mechanism.
It is further characterized in that: the first main gear and the second intermediate gear are simplified into corresponding gear ring structures, so that the low structural cost is ensured;
an output flange is fixedly arranged on the part of the output shaft, which protrudes out of the second shell, and the output flange is fastened and connected in the axial direction through a locking nut;
the rear end of the output shaft penetrates through the rear end of the positioning hole corresponding to the second shell and is sleeved with an odometer sensing gear ring;
an output bearing is sleeved at the position, corresponding to the positioning hole of the second shell, of the output shaft, and a rear oil seal is sleeved at the rear part of the position, corresponding to the odometer sensing gear ring, of the output shaft;
an input bearing is sleeved at the position, corresponding to the positioning hole, of the front end of the input shaft, which penetrates through the first shell, and a front oil seal is sleeved at the position, corresponding to the front end of the input bearing, of the input shaft;
two ends of the transmission shaft are respectively installed in corresponding positioning ring grooves of the first shell and the second shell through a first bearing and a second bearing;
the axial end faces of the first shell and the second shell are fixedly connected through flange face bolts, the second shell is correspondingly provided with a gear shifting mechanism input avoiding hole, and the gear shifting mechanism is meshed with a rack structure of the shifting fork shaft through an output gear.
Adopt the utility model discloses afterwards, the input shaft, the output shaft is coaxial to be arranged, shift along the axial activity of output shaft through the drive declutch shift shaft and then drive the synchronous ware, it keeps off including two gos forward, when motor corotation, the drive shift can, when needs reverse gear, the motor reversal, hang corresponding gear can, it is applicable to the commodity circulation car below 4.5 tons, its gearshift is simple and convenient, it is big to turn round the matter ratio and has higher reliability, adopt the motor speed governing gear shift, strike for a short time, the noise is low, the gear shift is smooth-going, the gear shift travelling comfort of the whole car that matches has been promoted, dynamic property and economic nature.
Drawings
FIG. 1 is a schematic sectional view of a front view of an embodiment of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the gear shifting mechanism comprises a first shell 1, a second shell 2, a mounting cavity 3, an input shaft 4, a first main gear 5, a meshing gear ring 51, a concave shaft center hole 6, an output shaft 7, a second main gear 8, a meshing gear ring 81, a synchronizer 9, a transmission shaft 10, a normally meshed gear 11, a second intermediate gear 12, a concave ring groove 13, a shifting fork shaft 14, a shifting fork shaft bushing 15, a shifting fork shaft guide hole 16, a shifting fork 17, a driving end 171, a rack structure 18, a gear shifting mechanism 19, an output flange 20, a locking nut 21, an odometer induction gear ring 22, an output bearing 23, a rear oil seal 24, an input bearing 25, a front oil seal 26, a first bearing 27, a second bearing 28, a flange bolt 29 and a gear shifting mechanism input avoidance hole 30.
Detailed Description
Three-shaft two-speed automatic transmission, see fig. 1: the transmission comprises a transmission case body, the transmission case body comprises a first case body 1 and a second case body 2, an installation cavity 3 is formed after the first case body 1 and the second case body 2 are assembled, an input shaft 4 protruding outwards is arranged on the front end wall of the first case body 1, a driving motor is externally connected to the protruding end of the input shaft 4, a first main gear 5 is sleeved on an outer ring of the input shaft 4, the outer ring is located in the installation cavity 3, a concave shaft center hole 6 is arranged in the center of the rear end of the input shaft 4, the front end of an output shaft 7 is coaxially arranged in the concave shaft center hole 6 through a bearing, the rear end of the output shaft 7 penetrates through the rear end wall of the second case body 2 to be arranged, a second main gear 8 is sleeved on the portion, located in the installation cavity 3, of the output shaft 7, a synchronizer 9 is sleeved on the front end portion, corresponding to the second main gear 8, of the output shaft 7, the synchronizer 9 axially moves along the positions between the first main gear 5 and the second, The respective meshing gear rings 51 and 81 of the second main gear 8 are arranged, the mounting cavity 3 is further provided with a transmission shaft 10, the transmission shaft 10 is respectively provided with a normally meshing gear 11 and a second intermediate gear 12 from front to back, the normally meshing gear 11 is meshed and connected with the first main gear 5 at the corresponding position, the second intermediate gear 12 is meshed and connected with the second main gear 8 at the corresponding position, the outer annular surface of the synchronizer 9 is provided with a concave annular groove 13, the mounting cavity 3 is further provided with a shifting fork shaft 14, two ends of the shifting fork shaft 14 are respectively arranged in corresponding shifting fork shaft guide holes 16 through shifting fork shaft bushings 15, the shifting fork shaft 14 is fixedly sleeved with a shifting fork 17, a driving end 171 of the shifting fork 17 extends into the concave annular groove 13, the driving end 171 of the shifting fork 17 drives the synchronizer 9 to drive and shift along the axial direction of the output shaft 7, at least one section of the length direction of the shifting fork shaft 14 is provided with a rack structure 18, the rack structure 18 is meshed and connected with the output gear, belonging to an existing mature structure).
The first main gear 5 and the second intermediate gear 12 are simplified into corresponding gear ring structures, so that the low structural cost is ensured;
the part of the output shaft 7 protruding out of the second shell 2 is fixedly provided with an output flange 20, and the axial direction of the output flange 20 is tightly connected through a locking nut 21;
the rear end of the output shaft 7 penetrates through the rear end of the positioning hole corresponding to the second shell 2 and is sleeved with an odometer induction gear ring 22;
an output bearing 23 is sleeved on the position, corresponding to the positioning hole of the second shell 2, of the output shaft 7, and a rear oil seal 24 is sleeved on the rear portion of the position, corresponding to the odometer induction gear ring 22, of the output shaft 23;
an input bearing 25 is sleeved at the position where the front end of the input shaft 4 penetrates through the positioning hole corresponding to the first shell 1, and a front oil seal 26 is sleeved at the position of the input shaft 4 corresponding to the front end of the input bearing 25;
two ends of the transmission shaft 10 are respectively installed in corresponding positioning ring grooves of the first shell 1 and the second shell 2 through a first bearing 27 and a second bearing 28;
axial end faces of the first shell 1 and the second shell 2 are fixedly connected through a flange face bolt 29, the second shell 2 is correspondingly provided with a gear shifting mechanism input avoidance hole 30, and the gear shifting mechanism 19 is meshed with the rack structure 18 of the shifting fork shaft 14 through the gear shifting mechanism input avoidance hole 30 and an output gear.
The working principle is as follows: the input shaft, the output shaft is coaxial to be arranged, shift along the axial activity of output shaft through the drive declutch shift axle and then drive the synchronous ware, it is including two fender that go forward, when motor corotation, the drive shift can, when needs reverse gear, the motor reversal, it can to hang corresponding gear, the motor can stepless speed regulation, it is applicable to the commodity circulation car below 4.5 tons, its gearshift is simple and convenient, it is big to turn round the matter ratio and have higher reliability, adopt motor speed governing gear shift, strike for a short time, the noise is low, the gear shift is smooth-going, the gear shift travelling comfort of the whole car that matches has been promoted, dynamic property and economic nature.
The detailed description of the embodiments of the present invention has been provided, but the present invention is only the preferred embodiments of the present invention, and should not be considered as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent application.
Claims (8)
1. Three-shaft two-gear automatic transmission is characterized in that: the transmission case comprises a transmission case body, the transmission case body comprises a first shell and a second shell, an installation cavity is formed after the first shell and the second shell are assembled, an input shaft protrudes out from the front end wall of the first shell, a driving motor is connected with the protruding end of the input shaft in an external mode, a first main gear is sleeved on an outer ring of the input shaft, which is located in the installation cavity, a concave shaft center hole is formed in the center of the rear end of the input shaft, the front end of an output shaft is coaxially arranged in the concave shaft center hole through a bearing, the rear end of the output shaft penetrates through the rear end wall of the second shell to be arranged, a second main gear is sleeved on a part, which is located in the installation cavity, of the output shaft through a bearing, a synchronizer is sleeved on the front end part, which corresponds to the second main gear, and moves axially between the first main gear and the second main gear, the two end surfaces of the first synchronizer are respectively arranged towards the respective meshing gear rings of the first main gear and the second main gear, the mounting cavity is further provided with a transmission shaft, the transmission shaft is respectively provided with a normally meshing gear and a second intermediate gear from front to back, the normally meshing gear is meshed and connected with the first main gear at the corresponding position, the second intermediate gear is meshed and connected with the second main gear at the corresponding position, the outer ring surface of the synchronizer is provided with an inwards concave ring groove, a shifting fork shaft is further arranged in the mounting cavity, two ends of the shifting fork shaft are respectively mounted in corresponding shifting fork shaft guide holes through shifting fork shaft bushings, a shifting fork is fixedly sleeved on the shifting fork shaft, the driving end of the shifting fork extends into the inwards concave ring groove, the driving end of the shifting fork drives the synchronizer to drive and shift gears along the axial direction of an output shaft, and at least one section of the shifting fork shaft in the length direction is provided with a rack structure, the rack structure is meshed with an output gear of the gear shifting mechanism.
2. A three-shaft two-speed automatic transmission according to claim 1, wherein: the first main gear and the second intermediate gear are in corresponding gear ring structures.
3. A three-shaft two-speed automatic transmission according to claim 1, wherein: and the part of the output shaft, which protrudes out of the second shell, is fixedly provided with an output flange, and the output flange is fastened and connected in the axial direction through a locking nut.
4. A three-shaft two-speed automatic transmission according to claim 1, wherein: and the rear end of the output shaft penetrates through the rear end of the positioning hole corresponding to the second shell and is sleeved with an odometer sensing gear ring.
5. A three-shaft two-speed automatic transmission according to claim 4, wherein: an output bearing is sleeved at the position, corresponding to the positioning hole of the second shell, of the output shaft, and a rear oil seal is sleeved at the rear part of the position, corresponding to the odometer sensing gear ring, of the output shaft.
6. A three-shaft two-speed automatic transmission according to claim 1, wherein: an input bearing is sleeved at the position, corresponding to the positioning hole, of the front end of the input shaft, penetrating through the first shell, and a front oil seal is sleeved at the position, corresponding to the front end of the input bearing, of the input shaft.
7. A three-shaft two-speed automatic transmission according to claim 1, wherein: and two ends of the transmission shaft are respectively installed in the corresponding positioning ring grooves of the first shell and the second shell through the first bearing and the second bearing.
8. A three-shaft two-speed automatic transmission according to claim 1, wherein: the axial end faces of the first shell and the second shell are fixedly connected through flange face bolts, the second shell is correspondingly provided with a gear shifting mechanism input avoiding hole, and the gear shifting mechanism is meshed with a rack structure of the shifting fork shaft through an output gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038482.6U CN209818694U (en) | 2018-12-06 | 2018-12-06 | Three-shaft two-gear automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038482.6U CN209818694U (en) | 2018-12-06 | 2018-12-06 | Three-shaft two-gear automatic transmission |
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| Publication Number | Publication Date |
|---|---|
| CN209818694U true CN209818694U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822038482.6U Active CN209818694U (en) | 2018-12-06 | 2018-12-06 | Three-shaft two-gear automatic transmission |
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| CN (1) | CN209818694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282019A (en) * | 2018-12-06 | 2019-01-29 | 苏州绿控传动科技股份有限公司 | Triple axle two-shift automatic variable speed device |
| CN112572396A (en) * | 2020-12-11 | 2021-03-30 | 潍柴动力股份有限公司 | Manual transmission vehicle AEBS control method, device and system |
-
2018
- 2018-12-06 CN CN201822038482.6U patent/CN209818694U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282019A (en) * | 2018-12-06 | 2019-01-29 | 苏州绿控传动科技股份有限公司 | Triple axle two-shift automatic variable speed device |
| CN112572396A (en) * | 2020-12-11 | 2021-03-30 | 潍柴动力股份有限公司 | Manual transmission vehicle AEBS control method, device and system |
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