CN216555181U - Compact five-gear transmission - Google Patents
Compact five-gear transmission Download PDFInfo
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- CN216555181U CN216555181U CN202121443808.9U CN202121443808U CN216555181U CN 216555181 U CN216555181 U CN 216555181U CN 202121443808 U CN202121443808 U CN 202121443808U CN 216555181 U CN216555181 U CN 216555181U
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Abstract
The utility model discloses a compact five-gear transmission, including main transmission and reverse gear ware, main transmission includes the main shaft and accepts the countershaft of main shaft power, the countershaft comprises integrated into one piece's first countershaft section and the vice countershaft section of second, the vice countershaft section of second extends into in the reverse gear ware and with power input to reverse gear ware, reverse gear ware has forward gear and reverse gear and through forward gear or reverse gear with power take off. The utility model discloses a five grades of derailleurs of compact, rational arrangement driving gear and driven gear's position, the shifter that can directly be used for the gear shift with the driving gear of suitable position and driven gear design simultaneously can shorten gear arrangement's axial length greatly to can reduce the whole volume of derailleur and alleviate derailleur weight greatly under the same conditions, be applicable to driving system such as tricycles and arrange the limited small-size motor vehicles in space, reduce the cost of manufacture and improve transmission strength.
Description
Technical Field
The utility model relates to a derailleur especially relates to compact five grades of derailleurs.
Background
The power plant of the existing small motor vehicle such as tricycle is usually equipped with a carriage or a flat plate for carrying people or loading goods, and the power plant usually adopts the power of an internal combustion engine, namely a gasoline or diesel engine or an electric motor, and even adopts the power of solar energy and the like. In the field, tricycles using an engine as power are common, the engine outputs power through a transmission in a common structure, in order to adapt to the characteristics of small volume, flexible use and low cost of the tricycle, gears and the like are generally made small enough, but the overall transmission strength is reduced, the overall volume of the transmission is increased, the transmission efficiency is relatively reduced, the weight of the whole transmission is increased, and the manufacturing and maintenance costs are increased.
Therefore, in order to solve the above problems, it is necessary to improve a transmission of a tricycle, which can ensure that the overall size and weight of the transmission are reduced under the same speed change condition, the transmission efficiency is improved, and the manufacturing cost and the maintenance cost are reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a compact five-speed transmission, which can reduce the overall size and weight of the transmission under the same speed change condition, improve the transmission efficiency, and reduce the manufacturing cost and the maintenance cost.
The utility model discloses a compact five-gear transmission, which comprises a main shaft, an auxiliary shaft, five driving gears and five driven gears;
the five driving gears comprise a first-gear driving gear, a third-gear driving gear, a fourth-gear driving gear, a fifth-gear driving gear and a second-gear driving gear, wherein the first-gear driving gear, the third-gear driving gear, the fourth-gear driving gear, the fifth-gear driving gear and the second-gear driving gear are sequentially and axially arranged in parallel on the main shaft and are in transmission fit with the main shaft; the four-gear driving gear is used as a first gear shifting connector which can be driven to axially slide and is connected with and separated from a third-gear driving gear or a fifth-gear driving gear;
the five driven gears are arranged corresponding to the five driving gears and comprise a first-gear driven gear, a third-gear driven gear, a fourth-gear driven gear, a fifth-gear driven gear and a second-gear driven gear, wherein the first-gear driven gear, the third-gear driven gear, the fourth-gear driven gear, the fifth-gear driven gear and the second-gear driven gear are sequentially arranged in parallel in the axial direction and are in running fit with the auxiliary shaft;
the third-gear driven gear is used as a second gear shifting connector which can be driven to axially slide to be connected with and separated from the first-gear driven gear or the fourth-gear driven gear; the fifth-gear driven gear is used as a third gear shifting connector which can be driven to axially slide to be connected with and separated from the second-gear driven gear; or the third-gear driven gear is used as a second gear shifting connector which can be driven to axially slide to be connected with and separated from the first-gear driven gear; the fifth-gear driven gear simultaneously serves as a third gear shifting coupling which can be driven to axially slide to be coupled with and separated from the second-gear driven gear or the fourth-gear driven gear.
In the scheme, the power transmission paths of all gears are as follows:
first gear: an input shaft, a first-gear driving gear, a first-gear driven gear, a third-gear driven gear, a countershaft and an output shaft;
second gear: an input shaft, a second-gear driving gear, a second-gear driven gear, a fifth-gear driven gear, a countershaft and an output shaft; the second-gear driven gear is in a rotationally matched relation with the auxiliary shaft, so that the power of the second-gear driven gear is transmitted to the auxiliary shaft through the axial combination of the fifth-gear driven gear which is in transmission fit with the auxiliary shaft and has axial sliding and the second-gear driven gear;
third gear: an input shaft, a first-gear driving gear/a fourth-gear driving gear, a third-gear driven gear, a countershaft and an output shaft; because the third-gear driving gear is in a rotating fit relationship with the main shaft, the power of the main shaft is transmitted to the third-gear driving gear through the axial combination of the first-gear driving gear/fourth-gear driving gear which is in transmission fit with the main shaft and has axial sliding and the third-gear driving gear, so that the third-gear speed transmission of the gearbox is realized;
fourth gear: an input shaft, a fourth-gear driving gear, a fourth-gear driven gear, a third-gear driven gear/a fifth-gear driven gear, a countershaft and an output shaft; because the fourth-gear driven gear is in a rotationally matched relation with the auxiliary shaft, the power of the fourth-gear driven gear is transmitted to the auxiliary shaft through the axial combination of the third-gear driven gear/the fifth-gear driven gear which is in transmission fit with the auxiliary shaft and has axial sliding and the fourth-gear driven gear;
fifth gear: an input shaft, a second-gear driving gear, a fourth-gear driving gear, a fifth-gear driven gear, a countershaft and an output shaft; because the five-gear driving gear is in a rotating fit relationship with the main shaft, the power of the main shaft is transmitted to the five-gear driving gear through the axial combination of the second-gear driving gear/fourth-gear driving gear which is in transmission fit with the main shaft and has axial sliding and the five-gear driving gear, so that the five-gear speed transmission of the gearbox is realized.
In the whole transmission system of the transmission, a synchronizer is omitted, the self-structural deformation of the four-gear driving gear, the three-gear driven gear and the five-gear driven gear is converted into the function of the synchronizer, the flexible switching of all gears is realized by reasonably setting the matching relation of all driving and driven gears, a main shaft and an auxiliary shaft, and the sequential switching among all gears can be realized only by matching with a shifting fork. The structure mode that the gears of each stage are separately arranged can form a compact transmission layout, the corresponding main driven gears and the corresponding auxiliary driven gears of each stage are in one-to-one meshing transmission, when the gears serving as the gear shifter slide and are in axial combined transmission with the adjacent gears (the gears serving as the gear shifter are provided with gear shifting grooves and axial engaging teeth matched with shifting forks, the gear serving as the synchronizer belongs to the prior art, the gears serving as the synchronizer can be used as transmission gears of corresponding gears and can also be used as synchronizers for axially combining and transmitting power between the adjacent gears, when the gears serving as the synchronizer are used, the gears of the gears do not have meshing relation, the gears serving as the synchronizers are sliding teeth, and in order to prevent the sliding gears from moving, corresponding positioning gear rings are arranged on a shaft), and the gears correspondingly meshed with the gears are disengaged.
The utility model discloses another kind of compact five-gear speed changer, including main shaft, countershaft, five driving gears and five driven gears;
the five driving gears comprise a first-gear driving gear, a third-gear driving gear, a fourth-gear driving gear, a fifth-gear driving gear and a second-gear driving gear, wherein the first-gear driving gear, the third-gear driving gear, the fourth-gear driving gear, the fifth-gear driving gear and the second-gear driving gear are sequentially and axially arranged in parallel on the main shaft and are in rotating fit with the main shaft;
the third-gear driving gear is used as a first gear shifting connector which can be driven to axially slide and is connected with and separated from the first-gear driving gear or the fourth-gear driving gear; the fifth-gear driving gear is used as a second gear shifting connector which can be driven to axially slide and is connected with and separated from the second-gear driving gear; or the third gear driving gear is used as a first gear shifting connector which can be driven to axially slide to be connected with and separated from the first gear driving gear; the fifth-gear driving gear is simultaneously used as a third gear shifting connector which can be driven to axially slide and is connected with and separated from the second-gear driving gear or the fourth-gear driving gear;
the five driven gears are arranged corresponding to the five driving gears and comprise a first-gear driven gear, a third-gear driven gear, a fourth-gear driven gear, a fifth-gear driven gear and a second-gear driven gear, wherein the first-gear driven gear, the third-gear driven gear, the fourth-gear driven gear, the fifth-gear driven gear and the second-gear driven gear are sequentially arranged in parallel in the axial direction and are in transmission fit with the auxiliary shaft; the fourth-gear driven gear simultaneously serves as a third gear shifting connector which can be driven to axially slide to be connected with and disconnected from the third-gear driven gear or the fifth-gear driven gear.
In the scheme, the power transmission paths of all gears are as follows:
first gear: the input shaft, a third-gear driving gear, a first-gear driven gear, a countershaft and an output shaft; because the first-gear driving gear is in a rotationally matched relation with the main shaft, the power of the main shaft is transmitted to the first-gear driving gear through the axial combination of the third-gear driving gear which is in transmission fit with the main shaft and has axial sliding and the first-gear driving gear, so that the first-gear speed transmission of the gearbox is realized;
second gear: an input shaft, a five-gear driving gear, a second-gear driven gear, an auxiliary shaft and an output shaft; because the second-gear driving gear is in a rotating fit relationship with the main shaft, the power of the main shaft is transmitted to the second-gear driving gear through the axial combination of the fifth-gear driving gear which is in transmission fit with the main shaft and has axial sliding and the second-gear driving gear, so that the second-gear speed transmission of the gearbox is realized;
third gear: an input shaft, a third-gear driving gear, a third-gear driven gear, a first-gear driven gear/a fourth-gear driven gear, a countershaft and an output shaft; the third-gear driven gear is in a rotationally matched relation with the auxiliary shaft, so that the power of the third-gear driven gear is transmitted to the auxiliary shaft through the axial combination of the first-gear driven gear/the fourth-gear driven gear which is in transmission fit with the auxiliary shaft and has axial sliding and the third-gear driven gear;
fourth gear: an input shaft, a third-gear driving gear, a fifth-gear driving gear, a fourth-gear driven gear, a countershaft and an output shaft; because the fourth-gear driving gear is in a rotating fit relationship with the main shaft, the power of the main shaft is transmitted to the fourth-gear driving gear through the axial combination of the third-gear driving gear/the fifth-gear driving gear which is in transmission fit with the main shaft and has axial sliding and the fourth-gear driving gear, so that the fourth-gear speed transmission of the gearbox is realized;
fifth gear: an input shaft, a five-gear driving gear, a five-gear driven gear, a four-gear driven gear, a counter shaft and an output shaft; because the fifth-gear driven gear is in a rotating fit relationship with the countershaft, the power of the fifth-gear driven gear is transmitted to the countershaft through the axial combination of the fourth-gear driven gear which is in transmission fit with the countershaft and has axial sliding and the fifth-gear driven gear, so that the fifth-gear speed of the gearbox is transmitted.
In the whole transmission system of the transmission, a synchronizer is omitted, the self-structural deformation of the three-gear driving gear, the five-gear driving gear and the four-gear driven gear is converted into the function of the synchronizer, the flexible switching of all gears is realized by reasonably setting the matching relation of all the driving and driven gears, the main shaft and the auxiliary shaft, and the sequential switching among all the gears can be realized only by matching with a shifting fork. The structure mode that the gears of each stage are separately arranged can form a compact transmission layout, the corresponding main driven gears and the corresponding auxiliary driven gears of each stage are in one-to-one meshing transmission, when the gears serving as the gear shifter slide and are in axial combined transmission with the adjacent gears (the gears serving as the gear shifter are provided with gear shifting grooves and axial engaging teeth matched with shifting forks, the gear serving as the synchronizer belongs to the prior art, the gears serving as the synchronizer can be used as transmission gears of corresponding gears and can also be used as synchronizers for axially combining and transmitting power between the adjacent gears, when the gears serving as the synchronizer are used, the gears of the gears do not have meshing relation, the gears serving as the synchronizers are sliding teeth, and in order to prevent the sliding gears from moving, corresponding positioning gear rings are arranged on a shaft), and the gears correspondingly meshed with the gears are disengaged.
Further, the five-gear transmission still includes the reverse gear ware as main transmission, the countershaft comprises integrated into one piece's first countershaft section and second countershaft section, first countershaft section is located main transmission, the second countershaft section extends into in the reverse gear ware and with power input to the reverse gear ware, the reverse gear ware has forward gear and reverse gear and exports power through forward gear or reverse gear. The auxiliary transmission is provided with two gears, one forward gear and one reverse gear, driving gears of the forward gear and the reverse gear are arranged on an auxiliary shaft of the main transmission and are in movable fit, the tooth type synchronizer is also arranged on the auxiliary shaft to perform corresponding gear shifting combination, a carrier gear and a carrier gear shaft for reverse gear transmission are arranged at corresponding positions, the carrier gear and the shaft are arranged in a split mode, large-scale production is facilitated, cost is reduced, the carrier gear shaft is fixed with a box body, the carrier gear and the shaft are arranged in a split mode, machining difficulty is reduced, accuracy requirements are lowered, and cost can be effectively controlled for a low-cost tricycle.
Further, the reverse gear device is provided with a forward gear set, a reverse gear set and a power output shaft; and the forward gear set and the reverse gear set respectively form a transmission chain or break the transmission chain between the second auxiliary shaft section and the power output shaft, the forward gear set is used for transmitting forward power to the output shaft, and the reverse gear set is used for transmitting reverse power to the output shaft.
Furthermore, the first countershaft section is located in the main transmission and is provided with a first center oil hole, the first center oil hole is used for leading lubricating oil to the rotating matching surface of the first countershaft section, and the rotating matching surface of the first countershaft section is a rotating matching surface between the first-gear driven gear and the first countershaft section, a rotating matching surface between the second-gear driven gear and the first countershaft section, or a rotating matching surface between the third-gear driven gear and the first countershaft section, and a rotating matching surface between the fifth-gear driven gear and the first countershaft section.
Furthermore, the second countershaft section is provided with a second center oil hole, the second center oil hole leads lubricating oil to the rotation fitting surface of the second countershaft section, and the rotation fitting surface of the second countershaft section is a rotation fitting surface between the high-speed driving gear and the second countershaft section and a rotation fitting surface between the reverse driving gear and the second countershaft section.
Two central oil holes (namely a first central oil hole and a second central oil hole) on a first auxiliary shaft section and a second auxiliary shaft section on the auxiliary shaft are independently arranged, so that lubricating oil is still lubricated between the gear and the shaft when the vehicle goes up a slope or goes down a slope, and the extreme condition that the lubricating oil at one end cannot be lubricated from the outside is avoided.
Furthermore, the main shaft section is provided with a third central oil hole, the third central oil hole guides lubricating oil to a rotation matching surface of the main shaft, and the rotation matching surface of the main shaft is a rotation matching surface between a third-gear driving gear and the main shaft and a rotation matching surface between a fifth-gear driving gear and the main shaft or a rotation matching surface between a first-gear driving gear and the main shaft, a rotation matching surface between a second-gear driving gear and the main shaft and a rotation matching surface between a fourth-gear driving gear and the main shaft.
Furthermore, the forward gear set comprises a forward gear driving gear which is arranged on the second countershaft section in a rotating fit manner and a forward gear driven gear which is arranged on the power output shaft in a transmission fit manner, the reverse gear set comprises a reverse gear driving gear which is arranged on the second countershaft section in a rotating fit manner and a reverse gear driven gear which is arranged on the power output shaft in a transmission fit manner, and the reverse gear driving gear is meshed with the reverse gear driven gear through a reverse idler gear; a gear shifter is arranged between the forward gear driving gear and the reverse gear driving gear and is in transmission fit with the second auxiliary shaft section; the sliding fit surface of the second auxiliary shaft section is a rotating fit surface of a forward gear driving gear, a reverse gear driving gear and the second auxiliary shaft section, the reverse gear idler is arranged on a gap bridge gear shaft fixedly connected with the box body, an internal lubricating oil hole is formed in the gap bridge gear shaft and used for storing oil, and an oil groove used for guiding lubricating oil is formed in an inner hole of the gap bridge gear.
Further, main transmission still includes the main transmission box, the integrated into one piece of main transmission box is equipped with the support axle bed, the support axle bed is located and forms the support to the countershaft between first countershaft section and the second countershaft section.
Further, the support shaft seat supports the auxiliary shaft through the rotating matching of two parallel bearings.
Further, the reverse gear device also comprises a reverse gear box body, and the reverse gear box body is fixed on the main transmission box body.
The beneficial effects of the utility model are that: the utility model discloses a five grades of derailleurs of compact, the position of rational layout driving gear and driven gear, the gear shifter of can directly being used for the gear shift is designed with the driving gear and the driven gear of suitable position simultaneously, can shorten the axial length that the gear arranged greatly to can reduce the whole volume of derailleur and alleviate derailleur weight greatly under the same condition, be applicable to driving system such as tricycle and arrange the limited small-size motor vehicles in space, reduce the cost of manufacture and improve transmission intensity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of the present invention, and as shown in the figure, the present embodiment of the compact five-speed transmission discloses a compact five-speed transmission, which includes a main shaft 101, an auxiliary shaft 102, five driving gears and five driven gears;
the five driving gears comprise a first-gear driving gear 1011, a third-gear driving gear 1013, a fourth-gear driving gear 1014, a fifth-gear driving gear 1015 and a second-gear driving gear 1012, wherein the first-gear driving gear 1011, the third-gear driving gear 1013, the fourth-gear driving gear 1014, the fifth-gear driving gear 1015 and the second-gear driving gear 1012 are sequentially and axially arranged on the main shaft 101 in parallel and are in transmission fit with the main shaft 101; wherein the fourth gear drive gear 1014 simultaneously acts as a first shift coupling which is driven to slide axially into and out of engagement with the third gear drive gear 1013 or the fifth gear drive gear 1015;
the five driven gears are arranged corresponding to the five driving gears and comprise a first-gear driven gear 1021, a third-gear driven gear 1023, a fourth-gear driven gear 1024, a fifth-gear driven gear 1025 and a second-gear driven gear 1022, wherein the first-gear driven gear 1021, the third-gear driven gear 1023, the fourth-gear driven gear 1024, the fifth-gear driven gear 1025 and the second-gear driven gear 1022 are sequentially arranged in parallel in the axial direction and are in running fit with the auxiliary shaft 102;
the third-speed driven gear 1023 also serves as a second shift coupling that can be driven to axially slide in and out of engagement with the first-speed driven gear 1021 or the fourth-speed driven gear 1024; the fifth-speed driven gear 1025 also serves as a third shift engager that is driven to axially slidably engage and disengage the second-speed driven gear 1022; alternatively, the third-speed driven gear 1023 also serves as a second shift coupling that can be driven to axially slide in and out of engagement with the first-speed driven gear 1021; the fifth-speed driven gear 1025 also serves as a third shift engager that is driven to axially slide into and out of engagement with the second-speed driven gear 1022 or the fourth-speed driven gear 1024.
In the scheme, power transmission paths of all gears are as follows:
first gear: input shaft-first gear driving gear 1011-first gear driven gear 1021-third gear driven gear 1023-countershaft 102-output shaft 204;
second gear: input shaft-second gear driving gear 1012-second gear driven gear 1022-fifth gear driven gear 1025-countershaft 102-output shaft 204; due to the rotationally engaged relationship between the second-speed driven gear 1022 and the countershaft 102, the transmission of the second-speed of the transmission is achieved by axially coupling a fifth-speed driven gear 1025, which is in driving engagement with the countershaft 102 and has axial sliding, with the second-speed driven gear 1022 to transmit power of the second-speed driven gear 1022 to the countershaft 102;
third gear: input shaft-first gear driving gear 1011/fourth gear driving gear 1014-third gear driving gear 1013-third gear driven gear 1023-countershaft 102-output shaft 204; because the third driving gear 1013 and the main shaft 101 are in a rotationally matched relationship, the power of the main shaft 101 is transmitted to the third driving gear 1013 through the axial combination of the first driving gear 1011/the fourth driving gear 1014 which is in transmission fit with the main shaft 101 and has axial sliding, so as to realize the third speed transmission of the gearbox;
fourth gear: input shaft-four gear driving gear 1014-four gear driven gear 1024-three gear driven gear 1023/five gear driven gear 1025-countershaft 102-output shaft 204; because of the rotationally engaged relationship between the fourth-speed driven gear 1024 and the countershaft 102, the transmission of the fourth-speed of the transmission is achieved by the axial combination of the third-speed driven gear 1023/the fifth-speed driven gear 1025 and the fourth-speed driven gear 1024, which are in driving engagement with the countershaft 102 and have axial slip;
fifth gear: input shaft-second gear driving gear 1012/fourth gear driving gear 1014-fifth gear driving gear 1015-fifth gear driven gear 1025-countershaft 102-output shaft 204; because the fifth-gear driving gear 1015 and the main shaft 101 are in a rotationally matched relationship, the power of the main shaft 101 is transmitted to the fifth-gear driving gear 1015 through the axial combination of the second-gear driving gear 1012/the fourth-gear driving gear 1014 which is in transmission fit with the main shaft 101 and has axial sliding, so that the fifth-gear speed transmission of the gearbox is realized.
In the whole transmission system of the transmission, a synchronizer is omitted, the self-structural deformation of the four-gear driving gear 1014, the three-gear driven gear 1023 and the five-gear driven gear 1025 is converted into a function of the synchronizer, the flexible switching of all gears is realized by reasonably setting the matching relation of all the driving and driven gears, the main shaft 101 and the auxiliary shaft 102, the sequential switching among all the gears can be realized only by matching a shifting fork, and the transmission system of the transmission is compact in overall structure, high in reliability and low in cost. The structure mode that the gears of each stage are separately arranged can form a compact transmission layout, the corresponding main driven gears and the corresponding auxiliary driven gears of each stage are in one-to-one meshing transmission, when the gears serving as the gear shifter slide and are in axial combined transmission with the adjacent gears (the gears serving as the gear shifter are provided with gear shifting grooves and axial engaging teeth matched with shifting forks, the gear serving as the synchronizer belongs to the prior art, the gears serving as the synchronizer can be used as transmission gears of corresponding gears and can also be used as synchronizers for axially combining and transmitting power between the adjacent gears, when the gears serving as the synchronizer are used, the gears of the gears do not have meshing relation, the gears serving as the synchronizers are sliding teeth, and in order to prevent the sliding gears from moving, corresponding positioning gear rings are arranged on a shaft), and the gears correspondingly meshed with the gears are disengaged.
The invention discloses another compact five-gear transmission, which comprises a main shaft 101, a counter shaft 102, five driving gears and five driven gears, wherein the main shaft is connected with the counter shaft;
the five driving gears comprise a first-gear driving gear 1011, a third-gear driving gear 1013, a fourth-gear driving gear 1014, a fifth-gear driving gear 1015 and a second-gear driving gear 1012, wherein the first-gear driving gear 1011, the third-gear driving gear 1013, the fourth-gear driving gear 1014, the fifth-gear driving gear 1015 and the second-gear driving gear 1012 are sequentially and axially arranged on the main shaft 101 in parallel and are in rotating fit with the main shaft 101;
the third gear driving gear 1013 also serves as a first gear shifting coupling which can be driven to axially slide to engage and disengage with the first gear driving gear 1011 or the fourth gear driving gear 1014; the fifth drive gear 1015 also serves as a second shift coupling that is driven to slide axially into and out of engagement with the second drive gear 1012; alternatively, the third gear driving gear 1013 serves as a first gear shifting coupling which can be driven to axially slide to engage and disengage with the first gear driving gear 1011; the fifth gear driving gear 1015 also serves as a third shift coupling that is driven to slide axially into and out of engagement with the second gear driving gear 1012 or the fourth gear driving gear 1014;
the five driven gears are arranged corresponding to the five driving gears and comprise a first-gear driven gear 1021, a third-gear driven gear 1023, a fourth-gear driven gear 1024, a fifth-gear driven gear 1025 and a second-gear driven gear 1022, wherein the first-gear driven gear 1021, the third-gear driven gear 1023, the fourth-gear driven gear 1024, the fifth-gear driven gear 1025 and the second-gear driven gear 1022 are sequentially arranged in parallel in the axial direction and are in transmission fit with the auxiliary shaft 102; wherein the fourth driven gear 1024 simultaneously acts as a third shift engager that can be driven to axially slide into and out of engagement with the third driven gear 1023 or the fifth driven gear 1025.
In the scheme, the power transmission paths of all gears are as follows:
first gear: input shaft-third gear driving gear 1013-first gear driving gear 1011-first gear driven gear 1021-countershaft 102-output shaft 204; because the first-gear driving gear 1011 and the main shaft 101 are in a rotationally matched relationship, the power of the main shaft 101 is transmitted to the first-gear driving gear 1011 through the axial combination of the third-gear driving gear 1013 and the first-gear driving gear 1011, which are in transmission fit with the main shaft 101 and have axial sliding, so that the first-gear speed transmission of the gearbox is realized;
second gear: input shaft-fifth gear driving gear 1015-second gear driving gear 1012-second gear driven gear 1022-countershaft 102-output shaft 204; because the second-gear driving gear 1012 is in a rotationally matched relationship with the main shaft 101, the power of the main shaft 101 is transmitted to the second-gear driving gear 1012 through the axial combination of the fifth-gear driving gear 1015 which is in transmission fit with the main shaft 101 and has axial sliding, so that the second-gear speed transmission of the gearbox is realized;
third gear: input shaft-third gear driving gear 1013-third gear driven gear 1023-first gear driven gear 1021/fourth gear driven gear 1024-countershaft 102-output shaft 204; because of the rotationally engaged relationship between the third-speed driven gear 1023 and the countershaft 102, the transmission of the third-speed of the transmission is achieved by the axial combination of the first-speed driven gear 1021/fourth-speed driven gear 1024 and the third-speed driven gear 1023 in driving engagement with the countershaft 102 and having axial slip;
fourth gear: input shaft-third gear driving gear 1013/fifth gear driving gear 1015-fourth gear driving gear 1014-fourth gear driven gear 1024-countershaft 102-output shaft 204; because the fourth gear driving gear 1014 is in a rotating fit relationship with the main shaft 101, the power of the main shaft 101 is transmitted to the fourth gear driving gear 1014 through the axial combination of the third gear driving gear 1013/fifth gear driving gear 1015 which is in transmission fit with the main shaft 101 and has axial sliding and the fourth gear driving gear 1014, so that the fourth gear speed transmission of the gearbox is realized;
fifth gear: input shaft-five gear driving gear 1015-five gear driven gear 1025-four gear driven gear 1024-countershaft 102-output shaft 204; due to the rotationally engaged relationship between the five-speed driven gear 1025 and the layshaft 102, transmission of the transmission at the five speed is achieved by axially coupling the four-speed driven gear 1024, which is in driving engagement with the layshaft 102 and has axial slip, with the five-speed driven gear 1025 to the layshaft 102.
In the whole transmission system of the transmission, a synchronizer is omitted, the self-structural deformation of the three-gear driving gear 1013, the five-gear driving gear 1015 and the four-gear driven gear 1024 is converted into a function that the clutch has the synchronizer, the flexible switching of each gear is realized by reasonably setting the matching relation of each main driven gear, the main shaft 101 and the auxiliary shaft 102, and the sequential switching among the gears can be realized only by matching a shifting fork. The structure mode that the gears of each stage are separately arranged can form a compact transmission layout, the corresponding main driven gears and the corresponding auxiliary driven gears of each stage are in one-to-one meshing transmission, when the gears serving as the gear shifter slide and are in axial combined transmission with the adjacent gears (the gears serving as the gear shifter are provided with gear shifting grooves and axial engaging teeth matched with shifting forks, the gear serving as the synchronizer belongs to the prior art, the gears serving as the synchronizer can be used as transmission gears of corresponding gears and can also be used as synchronizers for axially combining and transmitting power between the adjacent gears, when the gears serving as the synchronizer are used, the gears of the gears do not have meshing relation, the gears serving as the synchronizers are sliding teeth, and in order to prevent the sliding gears from moving, corresponding positioning gear rings are arranged on a shaft), and the gears correspondingly meshed with the gears are disengaged.
In this embodiment, the five-speed transmission is used as a main transmission 1, and further includes a reverse gear device 2, the countershaft 102 is composed of a first countershaft section and a second countershaft section which are integrally formed, the first countershaft section is located in the main transmission 1, the second countershaft section extends into the reverse gear device 2 and inputs power to the reverse gear device 2, and the reverse gear device 2 has a forward gear and a reverse gear and outputs power through the forward gear or the reverse gear. The auxiliary transmission is provided with two gears, namely a forward gear and a reverse gear, driving gears of the forward gear and the reverse gear are arranged on an auxiliary shaft 102 of the main transmission and are in movable fit, a tooth synchronizer is also arranged on the auxiliary shaft 102 to perform corresponding gear shifting combination, a carrier gear and a carrier gear shaft 205 for reverse gear transmission are arranged at corresponding positions, the carrier gear and the shaft are arranged in a split mode, large-scale production is facilitated, and cost is reduced.
In this embodiment, the reverse gear device 2 is provided with a forward gear set, a reverse gear set and a power output shaft 204; the forward gear set and the reverse gear set respectively form a transmission chain or disconnect the transmission chain between the second countershaft segment and the power output shaft 204, the forward gear set is used for transmitting forward power to the output shaft 204, and the reverse gear set is used for transmitting reverse power to the output shaft 204.
In this embodiment, the first countershaft is located in the main transmission 1 and is provided with a first center oil hole 102a, the first center oil hole 102a is used for guiding lubricating oil to a rotating matching surface of the first countershaft, and the rotating matching surface of the first countershaft is a rotating matching surface between the first-gear driven gear 1021 and the first countershaft, a rotating matching surface between the second-gear driven gear 1022 and the first countershaft, or a rotating matching surface between the third-gear driven gear 1023 and the first countershaft, and a rotating matching surface between the fifth-gear driven gear 1025 and the first countershaft.
In this embodiment, the second auxiliary shaft section is provided with a second center oil hole 102b, the second center oil hole 102b guides the lubricating oil to the rotation matching surface of the second auxiliary shaft section, and the rotation matching surface of the second auxiliary shaft section is the rotation matching surface between the high-speed driving gear and the second auxiliary shaft section and the rotation matching surface between the reverse driving gear 2012 and the second auxiliary shaft section.
Two central oil holes (namely a first central oil hole 102a and a second central oil hole 102b) on the first countershaft section and the second countershaft section on the countershaft 102 are independently arranged, so that lubricating oil can be still lubricated between a gear and a shaft when a vehicle ascends or descends, and the extreme condition that lubricating oil at one end cannot be lubricated from the outside is avoided.
In this embodiment, the main shaft 101 is provided with a third central oil hole, the third central oil hole guides the lubricating oil to the rotation matching surface of the main shaft 101, and the rotation matching surface of the main shaft 101 is a rotation matching surface between the third-gear driving gear 1013 and the main shaft 101, a rotation matching surface between the fifth-gear driving gear 1015 and the main shaft 101, a rotation matching surface between the first-gear driving gear 1011 and the main shaft 101, a rotation matching surface between the second-gear driving gear 1011 and the main shaft 101, and a rotation matching surface between the fourth-gear driving gear 1014 and the main shaft 101.
In this embodiment, the forward gear set includes a forward gear driving gear 2011 rotatably disposed on the second countershaft and a forward gear driven gear 2021 disposed on the power output shaft 204 in a transmission fit manner, the reverse gear set includes a reverse gear driving gear 2012 rotatably disposed on the second countershaft and a reverse gear driven gear 2022 disposed on the power output shaft 204 in a transmission fit manner, and the reverse gear driving gear 2012 and the reverse gear driven gear 2022 are engaged with each other through a reverse idler gear 203; a gear shifter is arranged between the forward driving gear 2011 and the reverse driving gear 2012 and is in transmission fit with the second countershaft section; the slip fitting surface of the second countershaft section is for advancing a shelves driving gear 2011 and reverse gear driving gear 2012 and the rotation fitting surface of the second countershaft section, and reverse gear idler 203 sets up on the intermediate gear axle 205 with box fixed connection, and intermediate gear axle 205 is provided with inside lubrication hole and is used for the oil storage, and the intermediate gear hole is provided with the oil groove that is used for leading lubricating oil.
In this embodiment, the main transmission 1 further comprises a main transmission case, and the main transmission case is integrally formed with a support shaft seat, which is located between the first countershaft section and the second countershaft section to support the countershaft 102.
In this embodiment, the supporting shaft seat supports the auxiliary shaft 102 through two parallel bearings in a rotating fit manner.
In this embodiment, the reverse gear device 2 further includes a reverse gear box body, and the reverse gear box body is fixed to the main transmission box body.
The utility model discloses a five grades of derailleurs of compact, the position of rational layout driving gear and driven gear, the gear shifter of can directly being used for the gear shift is designed with the driving gear and the driven gear of suitable position simultaneously, can shorten the axial length that the gear arranged greatly to can reduce the whole volume of derailleur and alleviate derailleur weight greatly under the same condition, be applicable to driving system such as tricycle and arrange the limited small-size motor vehicles in space, reduce the cost of manufacture and improve transmission intensity.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. A compact five speed transmission characterized by: the gear transmission mechanism comprises a main shaft, an auxiliary shaft, five driving gears and five driven gears;
the five driving gears comprise a first-gear driving gear, a third-gear driving gear, a fourth-gear driving gear, a fifth-gear driving gear and a second-gear driving gear, wherein the first-gear driving gear, the third-gear driving gear, the fourth-gear driving gear, the fifth-gear driving gear and the second-gear driving gear are sequentially and axially arranged in parallel on the main shaft and are in transmission fit with the main shaft; the four-gear driving gear is used as a first gear shifting connector which can be driven to axially slide and is connected with and separated from a third-gear driving gear or a fifth-gear driving gear;
the five driven gears are arranged corresponding to the five driving gears and comprise a first-gear driven gear, a third-gear driven gear, a fourth-gear driven gear, a fifth-gear driven gear and a second-gear driven gear, wherein the first-gear driven gear, the third-gear driven gear, the fourth-gear driven gear, the fifth-gear driven gear and the second-gear driven gear are sequentially arranged in parallel in the axial direction and are in running fit with the auxiliary shaft;
the third-gear driven gear is used as a second gear shifting connector which can be driven to axially slide to be connected with and separated from the first-gear driven gear or the fourth-gear driven gear; the fifth-gear driven gear is used as a third gear shifting connector which can be driven to axially slide to be connected with and separated from the second-gear driven gear; or the third-gear driven gear is used as a second gear shifting connector which can be driven to axially slide to be connected with and separated from the first-gear driven gear; the fifth-gear driven gear simultaneously serves as a third gear shifting coupling which can be driven to axially slide to be coupled with and separated from the second-gear driven gear or the fourth-gear driven gear.
2. A compact five speed transmission characterized by: the gear transmission mechanism comprises a main shaft, an auxiliary shaft, five driving gears and five driven gears;
the five driving gears comprise a first-gear driving gear, a third-gear driving gear, a fourth-gear driving gear, a fifth-gear driving gear and a second-gear driving gear, wherein the first-gear driving gear, the third-gear driving gear, the fourth-gear driving gear, the fifth-gear driving gear and the second-gear driving gear are sequentially and axially arranged in parallel on the main shaft and are in rotating fit with the main shaft;
the third-gear driving gear is used as a first gear shifting connector which can be driven to axially slide and is connected with and separated from the first-gear driving gear or the fourth-gear driving gear; the fifth-gear driving gear is used as a second gear shifting connector which can be driven to axially slide and is connected with and separated from the second-gear driving gear; or the third gear driving gear is used as a first gear shifting connector which can be driven to axially slide to be connected with and separated from the first gear driving gear; the fifth-gear driving gear is simultaneously used as a third gear shifting connector which can be driven to axially slide and is connected with and separated from the second-gear driving gear or the fourth-gear driving gear;
the five driven gears are arranged corresponding to the five driving gears and comprise a first-gear driven gear, a third-gear driven gear, a fourth-gear driven gear, a fifth-gear driven gear and a second-gear driven gear, wherein the first-gear driven gear, the third-gear driven gear, the fourth-gear driven gear, the fifth-gear driven gear and the second-gear driven gear are sequentially arranged in parallel in the axial direction and are in transmission fit with the auxiliary shaft; the fourth-gear driven gear simultaneously serves as a third gear shifting connector which can be driven to axially slide to be connected with and disconnected from the third-gear driven gear or the fifth-gear driven gear.
3. The compact five speed transmission of claim 1 or 2, wherein: the five-gear transmission is as main transmission, still includes the reverse gear ware, the countershaft comprises integrated into one piece's first countershaft section and second countershaft section, first countershaft section is located main transmission, the vice countershaft section of second extends into in the reverse gear ware and with power input to the reverse gear ware, the reverse gear ware has forward gear and reverse gear and through forward gear or reverse gear with power output.
4. The compact five speed transmission of claim 3, wherein: the reverse gear device is provided with a forward gear set, a reverse gear set and a power output shaft; and the forward gear set and the reverse gear set respectively form a transmission chain or disconnect the transmission chain between the second auxiliary shaft section and the power output shaft.
5. The compact five speed transmission of claim 3, wherein: the first countershaft section is located main transmission and is equipped with first central oilhole, first central oilhole is used for leading lubricating oil to the running fit face of first countershaft section.
6. The compact five speed transmission of claim 5, wherein: the second countershaft section is provided with a second center oil hole that introduces lubricating oil to the rotating mating surface of the second countershaft section.
7. The compact five speed transmission of claim 4, wherein: the forward gear set comprises a forward gear driving gear which is arranged on the second countershaft section in a rotating fit manner and a forward gear driven gear which is arranged on the power output shaft in a transmission fit manner, the reverse gear set comprises a reverse gear driving gear which is arranged on the second countershaft section in a rotating fit manner and a reverse gear driven gear which is arranged on the power output shaft in a transmission fit manner, and the reverse gear driving gear is meshed with the reverse gear driven gear through a reverse gear idler; a gear shifter is arranged between the forward gear main power gear and the reverse gear main power gear and is in transmission fit with the second countershaft section; and the sliding matching surfaces of the second auxiliary shaft section are rotating matching surfaces of the forward gear driving gear and the reverse gear driving gear and the second auxiliary shaft section.
8. The compact five speed transmission of claim 6, wherein: the main transmission still includes the main transmission box, the integrative shaping of main transmission box is equipped with the support axle bed, the support axle bed is located and forms the support to the countershaft between first countershaft section and the second countershaft section.
9. The compact five speed transmission of claim 8, wherein: the supporting shaft seat supports the auxiliary shaft through the rotating matching of two parallel bearings.
10. The compact five speed transmission of claim 8, wherein: the reverse gear device also comprises a reverse gear box body, and the reverse gear box body is fixed on the main gearbox body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121443808.9U CN216555181U (en) | 2021-06-28 | 2021-06-28 | Compact five-gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121443808.9U CN216555181U (en) | 2021-06-28 | 2021-06-28 | Compact five-gear transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555181U true CN216555181U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121443808.9U Active CN216555181U (en) | 2021-06-28 | 2021-06-28 | Compact five-gear transmission |
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| Country | Link |
|---|---|
| CN (1) | CN216555181U (en) |
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2021
- 2021-06-28 CN CN202121443808.9U patent/CN216555181U/en active Active
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