A gearbox structure with auxiliary box

Abstract

The present invention provides a gearbox structure with a sub-box, which makes the connection between two power sources and the transmission convenient and reliable, ensures that the power output will not be interrupted, and increases the output power gears to meet the needs of vehicles. It includes a coaxially arranged dual input shaft and a power output shaft, the dual input shaft includes a second hollow input shaft and a first input shaft, the first input shaft passes through the hollow inner cavity of the second hollow input shaft and is coaxially arranged, the input end of the second hollow input shaft is connected to an external second power source, the input end of the first input shaft is connected to an external first power source, the output end of the second hollow input shaft is fixedly sleeved with a second transmission gear, the output end of the first input shaft is rearward relative to the second transmission gear, and is sequentially sleeved with a coupling synchronizer and an output A gear, the output A gear is the first transmission gear, and the output end of the first input shaft and the input end of the power output shaft are arranged at intervals.

Description

Technical Field

[0001] The invention relates to the technical field of gearbox power structure, in particular to a gearbox structure with an auxiliary box. Background Art

[0002] The output end of the existing gearbox structure is the gear output from 1 to N gears, and then the power is controlled according to the power performance, and it is generally a structure with a single input end and a single output end. With the development of the automobile industry, a dual gearbox layout has gradually emerged, and then the dual power is coupled and output, or the power is coupled at the input end of a single gearbox through a complex coupling mechanism and then connected to the single gearbox. Its structure is complex, and the connection between the power source and the gearbox is complex, and it cannot guarantee that the power output will not be interrupted. With the increase in power output demand, the existing gearbox with only 1 to N gear output cannot meet the vehicle demand. Summary of the invention

[0003] In view of the above problems, the present invention provides a gearbox structure with an auxiliary box, which makes the connection between the two power sources and the transmission convenient and reliable, ensures that the power output will not be interrupted, and increases the output power gears to meet vehicle use needs.

[0004] A gearbox structure with an auxiliary box, characterized in that it includes a coaxially arranged dual input shaft and a power output shaft, the dual input shaft includes a second hollow input shaft and a first input shaft, the first input shaft passes through the hollow inner cavity of the second hollow input shaft and is coaxially arranged, the input end of the second hollow input shaft is connected to an external second power source, the input end of the first input shaft is connected to an external first power source, the output end of the second hollow input shaft is fixedly sleeved with a second transmission gear, the output end of the first input shaft is rearward relative to the second transmission gear, and is sequentially sleeved with a coupling synchronizer and an output A gear, the output A gear is the first transmission gear. The output end of the first input shaft and the input end of the power output shaft are arranged at intervals, and the input end of the power output shaft is provided with a first synchronizer, and an output B gear is arranged on the side of the first synchronizer away from the output A gear, and the output B gear is sleeved on the corresponding position of the power output shaft. The power output shaft is also correspondingly provided with a plurality of groups of gear output structures, each group of gear output structures includes two gear output gears and a corresponding synchronizer structure, and each group of gear output structures selects a corresponding gear output gear through the synchronizer structure to output the power of the corresponding gear, and the letters A and B are different natural numbers from 1 to N;

[0005] It also includes a second intermediate shaft, a second intermediate shaft transmission tooth is arranged at a position corresponding to the second transmission gear of the second intermediate shaft, a first hollow intermediate shaft is also sleeved on the second intermediate shaft, a first intermediate shaft transmission tooth is sleeved at a position corresponding to the output A gear tooth of the first hollow intermediate shaft, corresponding middle gears are respectively sleeved at the positions of the axial direction of the first hollow intermediate shaft corresponding to the corresponding gear output gear of the power output shaft, corresponding middle gears are respectively sleeved at the positions of the remaining axial regions of the second intermediate shaft corresponding to the gear output gear, an output H gear tooth is sleeved at a position close to the end of the power output shaft, an auxiliary box output shaft is coaxially arranged at the end of the power output shaft, an H / L gear synchronizer and an output L gear tooth are sequentially arranged at a position close to the output H gear tooth on the auxiliary box output shaft, the output L gear tooth is sleeved on the auxiliary box output shaft through a meshing sleeve, a parallel auxiliary box intermediate shaft is also arranged on one side of the auxiliary box output shaft, corresponding middle H gears and middle L gears are respectively sleeved at positions of the auxiliary box intermediate shaft corresponding to the output H gear tooth and the output L gear tooth.

[0006] The further feature is that each gear output gear is independently arranged on the power output shaft, the output reverse gear gear is meshed with the intermediate steering gear, and the corresponding intermediate reverse gear is meshed with the intermediate steering gear and then meshed with the output reverse gear gear;

[0007] When the output reverse gear and the output first gear gear are integrated into the same output first reverse gear gear, a reverse gear shaft is further arranged on the outer side of the first hollow intermediate shaft or the second intermediate shaft corresponding to the output first reverse gear gear, and the reverse gear shaft is provided with reverse gear gear and idler gear gear, and a reverse gear synchronizer is arranged between the reverse gear gear and the idler gear gear, the reverse gear gear is fixedly sleeved on the reverse gear shaft and meshedly connected to the gear transmission gear of the corresponding low gear position, the idler gear gear is sleeved on the reverse gear shaft through a connecting sleeve and meshedly connected to the middle first gear, and the middle first gear is meshedly connected to the output first reverse gear gear;

[0008] All gear output gears sleeved on the power output shaft are sleeved on the power output shaft through a connecting sleeve;

[0009] Preferably, the output end of the first input shaft is rearwardly arranged relative to the second transmission gear, and is sequentially provided with a coupling synchronizer and an output fourth gear gear, the output end of the first input shaft and the input end of the power output shaft are spaced apart, a 2 / 4 gear synchronizer is provided at the input end of the power output shaft, an output second gear gear is arranged on a side of the 2 / 4 gear synchronizer away from the output fourth gear gear, the output second gear gear is sleeved on a corresponding position of the power output shaft, and output third gear gear, output first gear gear, and output reverse gear gear are sequentially provided on the power output shaft, a 1 / 3 gear synchronizer is arranged between the output third gear gear and the output first gear gear, a reverse gear synchronizer is provided on one side of the output reverse gear gear, and the first gear synchronizer further comprises a second gear synchronizer. Two intermediate shafts, the second intermediate shaft is provided with second intermediate shaft transmission teeth at a position corresponding to the second transmission gear, the second intermediate shaft is also sleeved with a first hollow intermediate shaft, the first hollow intermediate shaft is sleeved with first intermediate shaft transmission teeth at a position corresponding to the output fourth gear teeth, the first hollow intermediate shaft is sleeved with corresponding intermediate transmission teeth at an axial position corresponding to the output second gear teeth of the power output shaft, and the second intermediate shaft is sleeved with corresponding intermediate transmission teeth at positions corresponding to the output third gear teeth and the output first gear teeth protruding from the axial region of the first hollow intermediate shaft; the intermediate reverse gear is connected to the output reverse gear teeth through an intermediate steering gear, and the intermediate reverse gear is sleeved at a corresponding position of the second intermediate shaft;

[0010] All the intermediate transmission teeth are fixedly sleeved on corresponding positions of the second intermediate shaft or the first hollow intermediate shaft.

[0011] After adopting the above technical scheme, the second power source and the first power source input power through the coaxial, and a coupling synchronizer is arranged between the first transmission gear of the first input shaft and the second transmission gear of the second hollow input shaft. When the first transmission gear and the second transmission gear are in synchronous meshing state, the power of the second power source and the first power source is synchronously coupled and output to the corresponding intermediate transmission gear, and then transmitted to the power output shaft, and the gear output is performed by selecting the corresponding gear, and finally the H / L gear synchronizer selects the H gear or L gear combined with the gear output on the corresponding power output shaft, and the power output is completed through the auxiliary box output shaft; when the coupling synchronizer is disengaged, the second power source is transmitted to the corresponding intermediate transmission gear through the second transmission gear, and then transmitted to the power output shaft, and the gear output is performed by selecting the corresponding gear, and the first power source is transmitted through the first transmission gear. The power is then transmitted to the corresponding intermediate transmission gear, and then transmitted to the power output shaft, and the corresponding gear is selected for gear output. The first power and the second power are coupled on the power output shaft and then output. Finally, the H gear or L gear is selected through the H / L gear synchronizer in combination with the corresponding gear output on the power output shaft, and the power output is completed through the auxiliary box output shaft. This makes the connection between the two power sources and the transmission convenient and reliable, and the power can be selected for coupled output or output separately and then coupled output on the power output shaft, which ensures that the power output will not be interrupted and realizes shifting without power interruption. At the same time, since an auxiliary box output shaft is also provided, the corresponding gear output can be selected by selecting H gear or L gear according to needs, which makes the output gear twice as much as before, making the connection between the two power sources and the transmission convenient and reliable, ensuring that the power output will not be interrupted, and the output power gears are increased to meet vehicle needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic block diagram of a specific embodiment of the present invention;

[0013] The names corresponding to the serial numbers in the figure are as follows:

[0014] Power output shaft 1, second hollow input shaft 2, first input shaft 3, second transmission gear 4, coupling synchronizer 5, second intermediate shaft 6, second intermediate shaft transmission gear 7, first hollow intermediate shaft 8, first intermediate shaft transmission gear 9, output H gear gear 10, output L gear gear 11, H / L gear synchronizer 12, auxiliary box output shaft 13, middle H gear 14, middle L gear 15, middle steering gear 16, middle reverse gear 17, output fourth gear gear 18, 2 / 4 gear synchronizer 19, output second gear gear 20, output third gear gear 21, output first gear gear 22, reverse gear synchronizer 23, 1 / 3 gear synchronizer 24, output reverse gear gear 25, connecting sleeve 26, auxiliary box intermediate shaft 27. DETAILED DESCRIPTION

[0015] A gearbox structure with a sub-box, see Figure 1:It includes a coaxially arranged dual input shaft and a power output shaft 1, the dual input shaft includes a second hollow input shaft 2 and a first input shaft 3, the first input shaft 3 passes through the hollow inner cavity of the second hollow input shaft 2 and is coaxially arranged, the input end of the second hollow input shaft 2 is connected to an external second power source, the input end of the first input shaft 3 is connected to an external first power source, the output end of the second hollow input shaft 2 is fixedly sleeved with a second transmission gear 4, the output end of the first input shaft 3 is rearward relative to the second transmission gear, and is sequentially sleeved with a coupling synchronizer 5 and an output A gear, the output A gear is the first The transmission gear is arranged at an interval between the output end of the first input shaft 3 and the input end of the power output shaft 1. The input end of the power output shaft 1 is provided with a first synchronizer. The side of the first synchronizer away from the output A gear is arranged with an output B gear. The output B gear is sleeved on the corresponding position of the power output shaft. The power output shaft 1 is also correspondingly sleeved with a plurality of groups of gear output structures. Each group of gear output structures includes two gear output gears and a corresponding synchronizer structure. Each group of gear output structures selects a corresponding gear output gear through the synchronizer structure to output the power of the corresponding gear.

[0016] The letters A and B are different natural numbers from 1 to N;

[0017] It also includes a second intermediate shaft 6, and a second intermediate shaft transmission tooth 7 is arranged at a position of the second intermediate shaft 6 corresponding to the second transmission gear. A first hollow intermediate shaft 8 is also sleeved on the second intermediate shaft 6, and a first intermediate shaft transmission tooth 9 is sleeved at a position of the first hollow intermediate shaft 8 corresponding to the output A gear tooth. The axial position of the first hollow intermediate shaft 8 corresponding to the position of the corresponding gear output gear of the power output shaft 1 is respectively sleeved with a corresponding intermediate transmission tooth, and the remaining axial area of ​​the second intermediate shaft 6 in the first hollow intermediate shaft 8 corresponding to the position of the gear output gear is respectively sleeved with a corresponding intermediate transmission tooth. The power output shaft 1 The output H gear 10 is fixedly sleeved at the position near the end, and the auxiliary box output shaft 13 is coaxially arranged at the end of the power output shaft 1, and the position of the auxiliary box output shaft 13 near the output H gear 10 is sequentially arranged with the H / L gear synchronizer 12 and the output L gear 11. The output L gear 11 is sleeved on the auxiliary box output shaft 13 through the engaging sleeve 27. A parallel auxiliary box intermediate shaft 27 is also arranged on one side of the auxiliary box output shaft 13. The positions of the auxiliary box intermediate shaft 27 corresponding to the output H gear 10 and the output L gear 11 are respectively sleeved with corresponding middle H teeth 14 and middle L teeth 15.

[0018] Each gear output gear is independently arranged on the power output shaft 1, the output reverse gear 25 is meshed with the intermediate steering gear 16, and the corresponding middle reverse gear 17 is meshed with the intermediate steering gear 16 and then meshed with the output reverse gear 25;

[0019] When the output reverse gear and the output first gear gear are integrated into the same output first reverse gear gear, an intermediate shaft is further arranged on the outer side of the first hollow intermediate shaft or the second intermediate shaft corresponding to the output first reverse gear gear, the intermediate shaft is provided with reverse gear gear and idler gear gear, a reverse gear synchronizer is arranged between the reverse gear gear and the idler gear gear, the reverse gear gear is fixedly sleeved on the intermediate shaft and meshedly connected to the gear transmission gear of the corresponding low gear position, the idler gear gear is sleeved on the intermediate shaft through a connecting sleeve and meshedly connected to the middle first gear, and the middle first gear is meshedly connected to the output first reverse gear gear;

[0020] All gear output gears mounted on the power output shaft are mounted on the power output shaft through a connecting sleeve;

[0021] In a specific embodiment, the output end of the first input shaft 3 is rearwardly arranged relative to the second transmission gear, and is sequentially provided with a coupling synchronizer 5 and an output fourth gear tooth 18, the output fourth gear tooth 18 being the first transmission gear, the output end of the first input shaft 3 and the input end of the power output shaft 1 are spaced apart, a 2 / 4 gear synchronizer 19 is provided at the input end of the power output shaft 1, an output second gear tooth 20 is arranged on the side of the 2 / 4 gear synchronizer 19 away from the output fourth gear tooth 18, the output second gear tooth 20 is sleeved on the corresponding position of the power output shaft 1, and an output third gear tooth 21, an output first gear tooth 22, and an output reverse gear tooth 25 are sequentially provided on the power output shaft 1, a 1 / 3 gear synchronizer 24 is arranged between the output third gear tooth 21 and the output first gear tooth 22, and the output reverse gear tooth 25 is provided at the output third gear tooth 21. A reverse gear synchronizer 23 is arranged on one side, which also includes a second intermediate shaft 6. A second intermediate shaft transmission tooth 7 is arranged at a position of the second intermediate shaft 6 corresponding to the second transmission gear 4. A first hollow intermediate shaft 8 is also sleeved on the second intermediate shaft 6. The first hollow intermediate shaft 8 is sleeved with a first intermediate shaft transmission tooth 9 at a position corresponding to the output fourth gear tooth 18. A corresponding intermediate transmission tooth is fixedly sleeved at an axial position of the first hollow intermediate shaft 8 corresponding to the output second gear tooth 20. The second intermediate shaft 6 is sleeved with corresponding intermediate transmission teeth at positions corresponding to the output third gear tooth 21 and the output first gear tooth 22 protruding from the axial area of ​​the first hollow intermediate shaft 8; the intermediate reverse gear 17 is connected to the output reverse gear tooth 25 through the intermediate steering gear 16, and the intermediate reverse gear 15 is sleeved at a corresponding position of the second intermediate shaft 6.

[0022] All gear output gears mounted on the power output shaft 1 are mounted on the power output shaft 1 through the connecting sleeve 26 to ensure the coupled output of power during output;

[0023] All the intermediate transmission teeth are fixedly sleeved on corresponding positions of the second intermediate shaft 6 or the first hollow intermediate shaft 8 .

[0024] In specific operation, when the coupling synchronizer is closed to the left, the second power source is coupled with the first power source, so that the first power source can realize all gear transmission; when the coupling synchronizer is opened, the power output of the second power source and the first power source is coupled on the power output shaft, so that there is no power interruption in the gear shifting process of the transmission. For example, the first power source passes through the output fourth gear teeth, and the 2 / 4 gear synchronizer is engaged in the second gear to the right, and the first power source transmits torque in the second gear; the second power source passes through the constant mesh gear, and the 1 / 3 gear synchronizer is engaged in the first gear to the right, and the second power source runs in the first gear, and the two powers are coupled on the power output shaft; when shifting gears, the first power source first disengages from the 2 / 4 gear synchronizer and engages in the fourth gear. During the process, the second power source always outputs power, and then the second power source disengages from the gear and engages in the third gear. During this process, the first power source always outputs power, thereby realizing gear shifting without power interruption; according to the actual demand for power, finally the H gear or L gear is selected through the H / L gear synchronizer in combination with the corresponding gear output on the power output shaft, and the power output is completed through the auxiliary box output shaft.

[0025] The gear arrangement of the specific embodiment is not limited to the order of the gear arrangement and combination in the above specific embodiment.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gearbox structure with an auxiliary box, characterized in that: It includes a coaxially arranged dual input shaft and a power output shaft, the dual input shaft includes a second hollow input shaft and a first input shaft, the first input shaft passes through the hollow inner cavity of the second hollow input shaft and is coaxially arranged, the input end of the second hollow input shaft is connected to an external second power source, the input end of the first input shaft is connected to an external first power source, the output end of the second hollow input shaft is fixedly sleeved with a second transmission gear, the output end of the first input shaft is rearward relative to the second transmission gear, and is sequentially sleeved with a coupling synchronizer and an output A gear, the output A gear is the first transmission gear, and the first input shaft The output end and the input end of the power output shaft are arranged at intervals, and the input end of the power output shaft is provided with a first synchronizer, and an output B gear is arranged on a side of the first synchronizer away from the output A gear, and the output B gear is sleeved on a corresponding position of the power output shaft, and the power output shaft is also correspondingly sleeved with a plurality of groups of gear output structures, each group of gear output structures includes two gear output gears and a corresponding synchronizer structure, and each group of gear output structures selects a corresponding gear output gear through the synchronizer structure to output the power of the corresponding gear, and the letters A and B are different natural numbers from 1 to N; It also includes a second intermediate shaft, a second intermediate shaft transmission tooth is arranged at a position corresponding to the second transmission gear of the second intermediate shaft, a first hollow intermediate shaft is also sleeved on the second intermediate shaft, a first intermediate shaft transmission tooth is sleeved at a position corresponding to the output A gear tooth of the first hollow intermediate shaft, corresponding middle gears are respectively sleeved at the positions of the axial direction of the first hollow intermediate shaft corresponding to the corresponding gear output gear of the power output shaft, corresponding middle gears are respectively sleeved at the positions of the remaining axial regions of the second intermediate shaft corresponding to the gear output gear, an output H gear tooth is sleeved at a position close to the end of the power output shaft, an auxiliary box output shaft is coaxially arranged at the end of the power output shaft, an H / L gear synchronizer and an output L gear tooth are sequentially arranged at a position close to the output H gear tooth on the auxiliary box output shaft, the output L gear tooth is sleeved on the auxiliary box output shaft through a meshing sleeve, a parallel auxiliary box intermediate shaft is also arranged on one side of the auxiliary box output shaft, corresponding middle H gears and middle L gears are respectively sleeved at positions of the auxiliary box intermediate shaft corresponding to the output H gear tooth and the output L gear tooth.

2. A gearbox structure with an auxiliary box as claimed in claim 1, characterized in that: Each gear output gear is independently arranged on the power output shaft, the output reverse gear tooth is meshed with the intermediate steering gear, and the corresponding middle reverse gear is meshed with the intermediate steering gear and then meshed with the output reverse gear tooth.

3. A gearbox structure with an auxiliary box as claimed in claim 1, characterized in that: When the output reverse gear and the output first gear gear are integrated into the same output first reverse gear gear, a reverse gear shaft is also arranged on the outer side of the first hollow intermediate shaft or the second intermediate shaft corresponding to the output first reverse gear gear, and reverse gear gear and idler gear teeth are arranged on the reverse gear shaft, and a reverse gear synchronizer is arranged between the reverse gear gear and the idler gear teeth, the reverse gear gear is fixedly sleeved on the reverse gear shaft and meshedly connected to the gear transmission gear of the corresponding low gear position, the idler gear tooth is sleeved on the reverse gear shaft through a connecting sleeve and meshedly connected to the middle gear, and the middle gear tooth is meshedly connected to the output first reverse gear gear.

4. A gearbox structure with an auxiliary box as claimed in claim 1, characterized in that: All gear output gears sleeved on the power output shaft are sleeved on the power output shaft through a connecting sleeve.

5. A gearbox structure with an auxiliary box as claimed in claim 1, characterized in that: The output end of the first input shaft is arranged rearward relative to the second transmission gear, and is sequentially sleeved with a coupling synchronizer and an output fourth gear gear. The input end of the power output shaft is provided with a 2 / 4 gear synchronizer. The side of the 2 / 4 gear synchronizer away from the output fourth gear gear is provided with an output second gear gear. The output second gear gear is sleeved on a corresponding position of the power output shaft. The power output shaft is also sequentially sleeved with output third gear gear, output first gear gear, and output reverse gear gear. A 1 / 3 gear synchronizer is arranged between the output third gear gear and the output first gear gear. A reverse gear synchronizer is arranged on one side of the output reverse gear gear. The first hollow intermediate shaft is sleeved with a first intermediate shaft transmission gear corresponding to the position of the output fourth gear gear. The first hollow intermediate shaft is sleeved with a corresponding middle transmission gear at the axial position corresponding to the output second gear gear of the power output shaft. The second intermediate shaft is sleeved with corresponding middle transmission gears at the positions corresponding to the output third gear gear and the output first gear gear protruding from the axial region of the first hollow intermediate shaft. The middle reverse gear is connected to the output reverse gear gear through an intermediate steering gear. The middle reverse gear is sleeved on the corresponding position of the second intermediate shaft.

6. A gearbox structure with an auxiliary box as claimed in claim 5, characterized in that: All the intermediate transmission teeth are fixedly sleeved on corresponding positions of the second intermediate shaft or the first hollow intermediate shaft.

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