CN211474786U - Eight-gear gearbox structure with coaxial double inputs - Google Patents

Abstract

The utility model provides an eight of coaxial dual input keep off gearbox structure for the connection of two power supplies and derailleur is convenient reliable, and ensures that stability, power take off of power transmission can not break off. It includes hollow input shaft of second and first input shaft, first input shaft runs through hollow inner chamber, the coaxial arrangement of the hollow input shaft of second, outside second power supply is connected to the input of the hollow input shaft of second, outside first power supply is connected to the input of first input shaft, the output of the hollow input shaft of second cover has second drive gear admittedly, and the output of first input shaft is rearmounted for second drive gear and is equipped with coupling synchronizer, output six and keep off the tooth in order, and the interval sets up between the output of first input shaft and the input of power output shaft, and power output shaft's input is provided with 6/7 fender synchronizer.

Description

Eight-gear gearbox structure with coaxial double inputs

Technical Field

The utility model relates to a technical field of gearbox structure specifically is an eight of coaxial dual input keep off gearbox structure.

Background

Present eight keep off position gearbox structure, when connecting two power supplies, need set up two input shafts in the gearbox, and then make the bulky of gearbox, and then make arranging of automobile body complicated relatively, at the actual process, can increase the design and the manufacturing cost of automobile body, and two power are shifting gears when switching, can produce power and break off, and the inside middle transmission gear of current gearbox body is single gear transmission, and the stability of transmission is relatively poor when actual transmission.

Disclosure of Invention

To the above problem, the utility model provides an eight of coaxial dual input keep off gearbox structure for the connection of two power supplies and derailleur is convenient reliable, and ensures that stability, power take off of power transmission can not break off.

The utility model provides a coaxial two input's eight keep off gearbox structure which characterized in that: the double-input shaft comprises a second hollow input shaft and a first input shaft which are coaxially arranged, the first input shaft penetrates through a hollow inner cavity of the second hollow input shaft and is coaxially arranged, the input end of the second hollow input shaft is connected with an external second power source, the input end of the first input shaft is connected with 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 arranged behind the second transmission gear and is sequentially sleeved with a coupling synchronizer and an output six-gear tooth, the output six-gear tooth is a first transmission gear, the output end of the first input shaft and the input end of the power output shaft are arranged at intervals, the input end of the power output shaft is provided with an 6/7-gear synchronizer, and one side of the 6/7-gear synchronizer, far away from the output six-gear tooth, is provided with an output seven-gear tooth, the seven output gear teeth are sleeved at corresponding positions of the power output shaft, the power output shaft is further sequentially sleeved with four output gear teeth, two output gear teeth, one output gear tooth, a reverse output gear tooth, a third output gear tooth and a fifth output gear tooth, 2/4-gear synchronizers are arranged between the four output gear teeth and the two output gear teeth, 1/reverse gear synchronizers are arranged between the first output gear teeth and the reverse output gear teeth, 3/5-gear synchronizers are arranged between the three output gear teeth and the fifth output gear teeth, the seven output gear teeth further comprise two second intermediate shafts which are respectively arranged in parallel with the output shaft, meshed second intermediate shaft transmission teeth are arranged at positions of the second intermediate shafts corresponding to second transmission gears, coaxially arranged first hollow intermediate shafts are further sleeved on each second intermediate shaft, and meshed first intermediate shaft transmission teeth are sleeved at positions of the first hollow intermediate shafts corresponding to the sixth output gear teeth, the axial direction of each first hollow intermediate shaft is fixedly sleeved with a corresponding meshed gear transmission gear at the position corresponding to an output seven-gear tooth, an output two-gear tooth and an output four-gear tooth of the output shaft, the position of each second intermediate shaft protruding out of the axial area of the first hollow intermediate shaft and corresponding to an output one-gear tooth, an output reverse gear tooth, an output three-gear tooth and an output five-gear tooth is sleeved with a corresponding meshed gear transmission gear, and a middle reverse gear tooth on each second intermediate shaft is connected with the output reverse gear tooth through an idler gear.

It is further characterized in that: all gear output gears sleeved on the output shaft are sleeved on the output shaft through connecting shaft sleeves, so that the coupling output of power during output is ensured;

all gear transmission gears are fixedly sleeved at corresponding positions of the second intermediate shaft or the first hollow intermediate shaft.

After the technical scheme is adopted, the second power source and the first power source carry out power input coaxially, 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, and under the synchronous meshing state of the first transmission gear and the second transmission gear, the power of the second power source and the power of the first power source are synchronously coupled and then output to the corresponding intermediate transmission gear and then transmitted to the output shaft, and gear output is carried out by selecting the corresponding gear; when the coupling synchronizer is in a disengaged state, the second power source is transmitted to the corresponding intermediate transmission gear through the second transmission gear, then transmitted to the output shaft, and gear output is performed by selecting the corresponding gear; the two power sources and the transmission are conveniently and reliably connected, and power coupling output can be selected or respectively output and then coupled and output on the output shaft, so that the power output is not interrupted, and unpowered interrupted gear shifting is realized; and because the two sides of the gear output gear are respectively connected and transmitted through the corresponding gear transmission gears, the power output is stable and reliable; the two power sources and the transmission are conveniently and reliably connected, and the stability of power transmission and the interruption of power output are ensured.

Drawings

FIG. 1 is a block diagram schematically illustrating the structure of the present invention;

the names corresponding to the sequence numbers in the figure are as follows:

the output shaft 1, the second hollow input shaft 2, the first input shaft 3, the second transmission gear 4, the coupling synchronizer 5, the output six-gear tooth 6, the 6/7-gear synchronizer 7, the output seven-gear tooth 8, the output four-gear tooth 9, the output two-gear tooth 10, the output one-gear tooth 11, the output reverse gear tooth 12, the output three-gear tooth 13, the output five-gear tooth 14, the 2/4-gear synchronizer 15, the 1/reverse gear synchronizer 16, the 3/5-gear synchronizer 17, the second intermediate shaft 18, the second intermediate shaft transmission tooth 19, the first hollow intermediate shaft 20, the first intermediate shaft transmission tooth 21, the middle reverse tooth 22, the idler tooth 23 and the connecting shaft sleeve 24.

Detailed Description

A coaxial dual-input eight-gear transmission structure is shown in figure 1: the double-input-shaft power output device comprises a double-input shaft and a power output shaft 1 which are coaxially arranged, wherein the double-input shaft comprises a second hollow input shaft 2 and a first input shaft 3, the first input shaft 3 penetrates through a 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 with an external second power source, the input end of the first input shaft 3 is connected with 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 arranged behind the second transmission gear 4 and is sequentially sleeved with a coupling synchronizer 5 and an output six-gear 6, the output six-gear 6 is a first transmission gear, the output end of the first input shaft 3 and the input end of the power output shaft 1 are arranged at intervals, the input end of the power output shaft 1 is provided with an 6/7-gear synchronizer 7, one side, far away from the output six-gear 6, of the 6/7-, the seven output gear 8 is sleeved on the corresponding position of the power output shaft 1, the four output gear 9, the two output gear 10, the one output gear 11, the reverse output gear 12, the three output gear 13 and the five output gear 14 are sequentially sleeved on the power output shaft 1, an 2/4 gear synchronizer 15 is arranged between the four output gear 9 and the two output gear 10, a 1/reverse synchronizer 16 is arranged between the first output gear 11 and the reverse output gear 12, a 3/5 gear synchronizer 17 is arranged between the three output gear 13 and the five output gear 14,

the transmission device also comprises two second intermediate shafts 18 which are respectively arranged in parallel with the output shaft 1, a meshed second intermediate shaft transmission gear 19 is arranged at the position of each second intermediate shaft 18 corresponding to the second transmission gear 4, a first hollow intermediate shaft 20 which is coaxially arranged is sleeved on each second intermediate shaft 18, a meshed first intermediate shaft transmission gear 21 is sleeved at the position of each first hollow intermediate shaft 20 corresponding to the output six-gear 6, a meshed corresponding gear transmission gear is fixedly sleeved at the position of each first hollow intermediate shaft 20 which axially corresponds to the output seven-gear 8, the output two-gear 9 and the output four-gear 10 of the output shaft 1, and a meshed corresponding gear transmission gear is sleeved at the position of each second intermediate shaft 18 which is outwards protruded from the axial area of the first hollow intermediate shaft 20 and corresponds to the output first gear 11, the output reverse gear 12, the output three-gear 13 and the output five-gear 14, the middle inverted tooth 22 on each second intermediate shaft 18 is connected to the output inverted tooth 12 via an idler tooth 23. The transmission shaft corresponding to each idler gear 23 is arranged in a triangular relationship with the output shaft 1 and the corresponding second intermediate shaft 17, so that transmission is facilitated, and the illustration in the figure is only used for expressing the transmission relationship.

All gear output gears sleeved on the output shaft 1 are sleeved on the output shaft 1 through a connecting shaft sleeve 24, so that the coupling output of power during output is ensured;

all gear transmission gears are fixedly sleeved at corresponding positions of the second intermediate shaft 18 or the first hollow intermediate shaft 20.

In specific implementation, the synchronizer can be completely replaced by the meshing sleeve correspondingly.

The arrangement of the gears in the specific embodiment is not limited to the specific implemented combination of the arrangement orders, and the arrangement orders of the gears are arranged according to the actual situation in the actual process.

In specific work, when the coupling synchronizer is closed leftwards, the second power source is coupled with the first power source, so that the first power source can realize transmission of all gears; when the coupling synchronizer is not closed, the power outputs of the second power source and the first power source can be coupled, so that the transmission has no power interruption in the gear shifting process, for example, the first power source is connected into the second gear through the output six-gear tooth, 2/4-gear synchronizer, and the first power source transmits torque in the second gear; the second power source is connected with the third gear through a normally meshed gear, 3/5 gear synchronizer, the second power source runs in the third gear, and the two powers are coupled on the output shaft; during gear shifting, the first power source firstly deviates from the 2/4 gear synchronizer and is engaged into the fourth gear, the second power source always outputs power in the process, then the second power source deviates from the third gear and is engaged into the fifth gear, and the first power source always outputs power in the process, so that unpowered interruption gear shifting is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (3)

1. The utility model provides a coaxial two input's eight keep off gearbox structure which characterized in that: the double-input shaft comprises a second hollow input shaft and a first input shaft, the first input shaft penetrates through a hollow inner cavity of the second hollow input shaft and is coaxially arranged, an external second power source is connected with the input end of the second hollow input shaft, an external first power source is connected with the input end of the first input shaft, a second transmission gear is fixedly sleeved at the output end of the second hollow input shaft, the output end of the first input shaft is arranged at the rear position relative to the second transmission gear and is sequentially sleeved with a coupling synchronizer and an output six-gear tooth, the output end of the first input shaft and the input end of the power output shaft are arranged at intervals, the input end of the power output shaft is provided with an 6/7-gear synchronizer, one side of the 6/7-gear synchronizer, far away from the output six-gear tooth, is provided with an output seven-gear tooth, the seven output gear teeth are sleeved at corresponding positions of the power output shaft, the power output shaft is further sequentially sleeved with four output gear teeth, two output gear teeth, one output gear tooth, a reverse output gear tooth, a third output gear tooth and a fifth output gear tooth, 2/4-gear synchronizers are arranged between the four output gear teeth and the two output gear teeth, 1/reverse gear synchronizers are arranged between the first output gear teeth and the reverse output gear teeth, 3/5-gear synchronizers are arranged between the three output gear teeth and the fifth output gear teeth, the seven output gear teeth further comprise two second intermediate shafts which are respectively arranged in parallel with the output shaft, meshed second intermediate shaft transmission teeth are arranged at positions of the second intermediate shafts corresponding to second transmission gears, coaxially arranged first hollow intermediate shafts are further sleeved on each second intermediate shaft, and meshed first intermediate shaft transmission teeth are sleeved at positions of the first hollow intermediate shafts corresponding to the sixth output gear teeth, the axial direction of each first hollow intermediate shaft is fixedly sleeved with a corresponding meshed gear transmission gear at the position corresponding to an output seven-gear tooth, an output two-gear tooth and an output four-gear tooth of the output shaft, the position of each second intermediate shaft protruding out of the axial area of the first hollow intermediate shaft and corresponding to an output one-gear tooth, an output reverse gear tooth, an output three-gear tooth and an output five-gear tooth is sleeved with a corresponding meshed gear transmission gear, and a middle reverse gear tooth on each second intermediate shaft is connected with the output reverse gear tooth through an idler gear.

2. The coaxial dual-input eight-speed transmission structure according to claim 1, wherein: all gear output gears sleeved on the output shaft are sleeved on the output shaft through connecting shaft sleeves.

3. The coaxial dual-input eight-speed transmission structure according to claim 1, wherein: all gear transmission gears are fixedly sleeved at corresponding positions of the second intermediate shaft or the first hollow intermediate shaft.

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