CN209818711U - Motor-driven auxiliary box structure - Google Patents
Motor-driven auxiliary box structure Download PDFInfo
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- CN209818711U CN209818711U CN201822194513.7U CN201822194513U CN209818711U CN 209818711 U CN209818711 U CN 209818711U CN 201822194513 U CN201822194513 U CN 201822194513U CN 209818711 U CN209818711 U CN 209818711U
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Abstract
The utility model provides a motor drive's auxiliary tank structure, its declutch shift shaft that makes the auxiliary tank need not to use position sensor can the position of accurate adjustment declutch shift shaft, and then obtains a fender that corresponds, two keep off or neutral gear, has satisfied the user demand of more vehicles. The first output shaft of the main box is the input shaft of the auxiliary box, the input shaft extends into the inner cavity of the auxiliary box, the length part of the input shaft, which is positioned in the inner cavity, is respectively sleeved with an auxiliary box main shaft gear and an auxiliary box gear ring, a second output shaft which is coaxial and not connected with the input shaft is further arranged in the auxiliary box, the second output shaft is respectively sleeved with an auxiliary box first gear shifting gear and an auxiliary box second gear shifting gear through bearings, the auxiliary box first gear shifting gear is meshed and connected with the inner gear ring of the auxiliary box gear ring, the auxiliary box second gear shifting gear is connected with the main shaft gear through a group of intermediate transmission gears and an intermediate transmission shaft, and an axial gear shifting structure is arranged between the auxiliary box first gear shifting gear and the auxiliary box second gear shifting gear.
Description
Technical Field
The utility model relates to a car transmission system's technical field specifically is a motor drive's auxiliary tank structure.
Background
In the existing transmission system of the automobile, under the condition that the gearbox is provided with the auxiliary box, the speed change of the two gears of the auxiliary box is completed through a pneumatic structure, in the actual use process, the pneumatic structure needs to move a position sensor to obtain the accurate position of a shifting fork shaft, and the pneumatic structure can only switch the first gear or the second gear, so that neutral gear switching cannot be performed.
Disclosure of Invention
To the above problem, the utility model provides a motor drive's auxiliary tank structure, its declutch shift shaft that makes the auxiliary tank need not to use position sensor can the position of accurate adjustment declutch shift shaft, and then obtains a fender that corresponds, two keep off or neutral gear, has satisfied the user demand of more vehicles.
The utility model provides a motor drive's auxiliary tank structure which characterized in that: the gear shifting mechanism comprises a main box and an auxiliary box, wherein a first output shaft of the main box is an input shaft of the auxiliary box, the input shaft extends into an inner cavity of the auxiliary box, the length part of the input shaft, which is positioned in the inner cavity, is respectively sleeved with an auxiliary box main shaft gear and an auxiliary box gear ring, a second output shaft which is coaxial and unconnected with the input shaft is further arranged in the auxiliary box, a first auxiliary box shifting gear and a second auxiliary box shifting gear are respectively sleeved on the second output shaft through bearings, the first auxiliary box shifting gear is meshed with an inner gear ring of the auxiliary box gear ring, the second auxiliary box shifting gear is connected with the main shaft gear through a group of intermediate transmission gears and an intermediate transmission shaft, an axial shifting structure is arranged between the first auxiliary box shifting gear and the second auxiliary box shifting gear, the center of the axial shifting structure is fixedly sleeved on the second output shaft, and two sides of an outer ring of the axial shifting mechanism are respectively provided with a first shifting gear facing the first shifting gear, The gear shifting mechanism comprises an auxiliary box, a gear shifting mechanism and a linear transmission fork, wherein the auxiliary box is arranged in a gear shifting mechanism, the outer ring surface of the outer ring of the axial gear shifting mechanism is provided with an inwards concave guide groove, the shifting fork end of the shifting fork is clamped in the inwards concave guide groove and arranged, the connecting rod of the shifting fork is provided with a linear transmission shaft, the linear transmission shaft is provided with a linear rack, the two ends of the linear transmission shaft are respectively inserted into corresponding guide holes, the gear shifting mechanism further comprises a driving motor, the output shaft of the driving motor is connected with an output gear through a transmission device, and the output gear is meshed and connected with.
It is further characterized in that:
the method comprises the steps that the respective position relations and the respective intervals of corresponding gear shifting forks of an axial gear shifting structure in a neutral gear state, a first gear state and a second gear state are obtained in advance, and the gear state corresponding to the specific number of turns of forward and reverse rotation of a driving motor is set according to the transmission ratio of the driving motor and an output gear and the linear feeding amount of a linear rack which rotates the output gear for one turn;
the transmission device is specifically a two-stage planetary gear, the output end of the driving motor is connected with the input shaft of a first-stage sun gear, the periphery of the first-stage sun gear is engaged with a plurality of annularly-distributed first-stage planet gears, all the first-stage planet gears are respectively arranged at corresponding positions of a first-stage planet gear carrier, a first central side convex output shaft of the first-stage planet gear carrier is fixedly sleeved with a second-stage sun gear, the periphery of the second-stage sun gear is engaged with a plurality of annularly-distributed second-stage planet gears, all the second-stage planet gears are respectively arranged at corresponding positions of a second-stage planet gear carrier, a second central side convex output shaft of the second-stage planet gear carrier is fixedly connected with the output gear after penetrating through a central avoiding hole of a fixed gear ring, a first inner gear ring and a second inner gear ring of the fixed gear ring are respectively, the arrangement of the two-stage planet wheels enables the speed ratio to be large and the driving force to be large, so that gear switching is more reliable;
the driving motor is specifically a 24V direct current motor;
the output end of the driving motor is connected with the input shaft of the primary sun gear through a normally closed brake, so that abnormal gear disengagement can be effectively avoided;
the intermediate transmission gear specifically comprises a first transmission gear and a second transmission gear, the first transmission gear is meshed with the main shaft gear, the first transmission gear is connected with the second transmission gear through the intermediate transmission shaft, and the second transmission gear is meshed with the second gear shifting gear of the auxiliary box;
the axial gear shifting mechanism is specifically an engaging sleeve or a synchronizer and is an existing mature gear shifting structure.
After the technical scheme is adopted, the gear switching power source of the auxiliary box is a motor, after the motor is used, the position of a gear shifting fork of the auxiliary box can be accurately controlled, the auxiliary box can be controlled to be in a neutral position, and neutral sliding is controlled during high-speed running, so that the oil stirring resistance of the gearbox is effectively reduced, and the economy is improved; and use the motor to rotate the number of turns, the drive ratio of driving motor and output gear and the output gear rotate the straight line feed amount of the straight line rack of a round, can calculate current shift fork position, compare in traditional mode, save position sensor, and keep off the position and acquire more accurately reliable.
Drawings
FIG. 1 is a schematic diagram of the structure of the transmission according to the present invention;
FIG. 2 is a schematic diagram of a connection structure of a driving motor and a transmission device, an output gear and a rack;
FIG. 3 is a schematic diagram of the structure of the transmission device driven by the auxiliary box of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the main box 1, the auxiliary box 2, the input shaft 201, the second output shaft 202, the auxiliary box main shaft gear 3, the auxiliary box gear ring 4, the inner gear ring 41, the bearing 5, the auxiliary box first gear shifting gear 6, the auxiliary box second gear shifting gear 7, the axial gear shifting structure 8, the concave guide groove 81, the gear shifting fork 9, the fork end 91, the connecting rod 92, the linear transmission shaft 93, the linear rack 10, the driving motor 11, the output shaft 12, the output gear 13, the primary sun gear 14, the primary planet gear 15, the primary planet gear carrier 16, the first central side convex output shaft 17, the secondary sun gear 18, the secondary planet gear 19, the secondary planet gear carrier 20, the second central side convex output shaft 21, the fixed gear ring 22, the first inner gear ring 221, the second inner gear ring 222, the central avoiding hole 23, the normally closed brake 24, the first transmission gear 25, the intermediate transmission shaft 26 and the second transmission gear 27.
Detailed Description
A motor-driven sub-box structure is shown in figures 1-3: the gearbox comprises a main box 1 and an auxiliary box 2, wherein a first output shaft of the main box 1 is an input shaft 201 of the auxiliary box 2, the input shaft 201 extends into an inner cavity of the auxiliary box 2, the length part of the input shaft 201, which is positioned in the inner cavity, is respectively sleeved with an auxiliary box spindle gear 3 and an auxiliary box gear ring 4, a second output shaft 202 which is coaxial with the input shaft 201 but not connected with the input shaft is further arranged in the auxiliary box 2, a first auxiliary box gear shifting gear 6 and a second auxiliary box gear shifting gear 7 are respectively sleeved on the second output shaft 202 through bearings 5, the first auxiliary box gear shifting gear 6 is meshed with an inner gear ring 41 of the auxiliary box gear ring 4, the second auxiliary box gear shifting gear 7 is connected with the spindle gear 3 through a group of intermediate transmission gears and an intermediate transmission shaft, an axial gear shifting structure 8 is arranged between the first auxiliary box gear shifting gear 6 and the second auxiliary box gear shifting gear 7, the center of the axial gear shifting structure 8 is fixedly sleeved on the second output shaft 202, and two sides of an outer, The outer ring surface of the outer ring of the axial gear shift mechanism 8 is provided with an inner concave guide groove 81, the shifting fork end 91 of the shifting fork 9 is clamped in the inner concave guide groove 81,
the connecting rod 92 of the gear shifting fork 9 is provided with a linear transmission shaft 93, the linear transmission shaft 93 is provided with a linear rack 10, two ends of the linear transmission shaft 93 are respectively inserted into corresponding guide holes, the gear shifting fork further comprises a driving motor 11, an output shaft 12 of the driving motor 11 is connected with an output gear 13 through a transmission device, and the output gear 13 is meshed with the linear rack 10.
The method comprises the steps that the respective position relation and the distance of a corresponding gear shifting fork 9 of an axial gear shifting structure 8 in a neutral gear state, a first gear state and a second gear state are obtained in advance, and the gear state corresponding to the specific number of forward and reverse rotation turns of a driving motor 11 is set according to the transmission ratio of the driving motor 11 and an output gear 13 and the linear feeding amount of a linear rack 10 rotated by the output gear 13 for one turn;
the transmission device is specifically a two-stage planetary gear, the output end 12 of the driving motor 11 is connected with the input shaft of a primary sun gear 14, the periphery of the primary sun gear 14 is engaged with a plurality of primary planet gears 15 which are annularly distributed, all the primary planet gears 15 are respectively arranged at corresponding positions of a primary planet gear carrier 16, a first central side convex output shaft 17 of the primary planet gear carrier 16 is fixedly sleeved with a secondary sun gear 18, the periphery of the secondary sun gear 18 is engaged with a plurality of secondary planet gears 19 which are annularly distributed, all the secondary planet gears 19 are respectively arranged at corresponding positions of a secondary planet gear carrier 20, a second central side convex output shaft 21 of the secondary planet gear carrier 20 is fixedly connected with an output gear 13 after penetrating through a central avoiding hole 23 of a fixed gear ring 22, a first inner gear ring 221 and a second inner gear ring 222 of the fixed gear ring 22 are respectively engaged with outer ring position teeth of the primary planet gears 15 and outer, the arrangement of the two-stage planet wheels enables the speed ratio to be large and the driving force to be large, so that gear switching is more reliable;
the driving motor 11 is specifically a 24V dc motor;
the output end 12 of the driving motor 11 is connected with the input shaft of the first-stage sun gear 14 through the normally closed brake 24, so that abnormal gear disengagement can be effectively avoided.
The intermediate transmission gear specifically comprises a first transmission gear 25 and a second transmission gear 27, the first transmission gear 25 is meshed and connected with the auxiliary box main shaft gear 3, the first transmission gear 25 is connected with the second transmission gear 27 through an intermediate transmission shaft 26, and the second transmission gear 27 is meshed and connected with the auxiliary box second gear shifting gear 7;
the axial shifting mechanism 8 is specifically a meshing sleeve or a synchronizer and is an existing mature shifting structure.
The dynamic working process is described by way of example as follows: description of dynamic working process:
if the shifting fork position is 0-10mm, the low gear is represented, 10-20mm is represented by neutral gear, 20-30mm is represented by high gear, and the shifting fork movement displacement corresponding to one circle of rotation of the driving motor is obtained through speed ratio calculation. After the current position of the shifting fork is determined by self-learning, gear switching can be controlled through the number of turns of the motor. In the self-learning stage, the 24V motor is moved in a fixed direction, when the motor is locked, the initial position is set in a program, such as 0, and the value is recorded in a TCU memory, and after power is off, the position also needs to be recorded for the next power-on use. Through current fender position and target fender position, the calculation motor needs to rotate the number of turns, and TCU control stopper opens, and driving motor rotates, drives the shift fork action of shifting, and when first gear of odd and the meshing of odd ring gear or second gear of odd and second drive gear meshing back, control motor stops and normally closed stopper closes, and the action of shifting is accomplished.
The innovation point is as follows: a 24V motor is used as a power source for gear switching of the auxiliary box; a 24V driving motor drives a two-stage planetary gear and a gear rack structure; a normally closed brake is added on an output shaft of the 24V driving motor; and calculating the current gear position by using the number of turns of the motor to replace a position sensor.
The beneficial effects are as follows: the 24V motor is used as a gear switching power source of the auxiliary box, and the traditional gas circuit control is replaced, so that the auxiliary box can be controlled to be in a neutral position, and the traditional gas circuit control cannot control the auxiliary box to be in a neutral position; when the vehicle runs at a high speed, the neutral gear sliding is controlled, so that the oil stirring resistance of the gearbox is effectively reduced, and the economy is improved; the 24V driving motor drives the two-stage planetary gear, the speed ratio is large, the driving force is large, and the gear switching is more reliable; a normally closed brake is added to the output of the 24V driving motor, so that abnormal gear disengagement can be effectively avoided; the number of turns of the motor is used, the current shifting fork position can be calculated through the speed ratio of the planetary gear to the gear rack, the position sensor is saved compared with the traditional mode, and the gear position is more accurate and reliable.
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 (6)
1. The utility model provides a motor drive's auxiliary tank structure which characterized in that: the gear shifting mechanism comprises a main box and an auxiliary box, wherein a first output shaft of the main box is an input shaft of the auxiliary box, the input shaft extends into an inner cavity of the auxiliary box, the length part of the input shaft, which is positioned in the inner cavity, is respectively sleeved with an auxiliary box main shaft gear and an auxiliary box gear ring, a second output shaft which is coaxial and unconnected with the input shaft is further arranged in the auxiliary box, a first auxiliary box shifting gear and a second auxiliary box shifting gear are respectively sleeved on the second output shaft through bearings, the first auxiliary box shifting gear is meshed with an inner gear ring of the auxiliary box gear ring, the second auxiliary box shifting gear is connected with the main shaft gear through a group of intermediate transmission gears and an intermediate transmission shaft, an axial shifting structure is arranged between the first auxiliary box shifting gear and the second auxiliary box shifting gear, the center of the axial shifting structure is fixedly sleeved on the second output shaft, and two sides of an outer ring of the axial shifting mechanism are respectively provided with a first shifting gear facing the first shifting gear, The gear shifting mechanism comprises an auxiliary box, a gear shifting mechanism and a linear transmission fork, wherein the auxiliary box is arranged in a gear shifting mechanism, the outer ring surface of the outer ring of the axial gear shifting mechanism is provided with an inwards concave guide groove, the shifting fork end of the shifting fork is clamped in the inwards concave guide groove and arranged, the connecting rod of the shifting fork is provided with a linear transmission shaft, the linear transmission shaft is provided with a linear rack, the two ends of the linear transmission shaft are respectively inserted into corresponding guide holes, the gear shifting mechanism further comprises a driving motor, the output shaft of the driving motor is connected with an output gear through a transmission device, and the output gear is meshed and connected with.
2. A motor-driven sub-tank structure as claimed in claim 1, wherein: the transmission device is a two-stage planetary gear, the output end of the driving motor is connected with the input shaft of the first-stage sun gear, a plurality of annularly distributed primary planet wheels are meshed on the periphery of the primary sun wheel, all the primary planet wheels are respectively arranged at corresponding positions of the primary planet wheel carrier, a second-stage sun wheel is fixedly sleeved on a first central side convex output shaft of the first-stage planet wheel carrier, a plurality of annularly-distributed second-stage planet wheels are meshed on the periphery of the second-stage sun wheel, all the second-stage planet wheels are respectively arranged at corresponding positions of the second-stage planet wheel carrier, the second central side convex output shaft of the secondary planet carrier is fixedly connected with the output gear after penetrating through the central avoiding hole of the fixed gear ring, the first inner gear ring and the second inner gear ring of the fixed gear ring are respectively meshed with the outer ring position teeth of the primary planet gear and the outer ring position teeth of the secondary planet gear at corresponding positions.
3. A motor-driven sub-tank structure as claimed in claim 2, wherein: the driving motor is specifically a 24V direct current motor.
4. A motor-driven sub-tank structure as claimed in claim 2, wherein: the output end of the driving motor is connected with the input shaft of the first-stage sun gear through a normally closed brake.
5. A motor-driven sub-tank structure as claimed in claim 1, wherein: the intermediate transmission gear specifically comprises a first transmission gear and a second transmission gear, the first transmission gear is meshed with the spindle gear, the first transmission gear is connected with the second transmission gear through the intermediate transmission shaft, and the second transmission gear is meshed with the auxiliary box second gear shifting gear.
6. A motor-driven sub-tank structure as claimed in claim 1, wherein: the axial gear shifting mechanism is specifically a meshing sleeve or a synchronizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822194513.7U CN209818711U (en) | 2018-12-25 | 2018-12-25 | Motor-driven auxiliary box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822194513.7U CN209818711U (en) | 2018-12-25 | 2018-12-25 | Motor-driven auxiliary box structure |
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| Publication Number | Publication Date |
|---|---|
| CN209818711U true CN209818711U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822194513.7U Active CN209818711U (en) | 2018-12-25 | 2018-12-25 | Motor-driven auxiliary box structure |
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| CN (1) | CN209818711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404526A (en) * | 2018-12-25 | 2019-03-01 | 苏州绿控传动科技股份有限公司 | A kind of motor-driven odd-side structure |
-
2018
- 2018-12-25 CN CN201822194513.7U patent/CN209818711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404526A (en) * | 2018-12-25 | 2019-03-01 | 苏州绿控传动科技股份有限公司 | A kind of motor-driven odd-side structure |
| CN109404526B (en) * | 2018-12-25 | 2024-03-29 | 苏州绿控传动科技股份有限公司 | Auxiliary box structure driven by motor |
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