Independent AMT gear shifting mechanism for electric tricycle and electric tricycle

Abstract

The utility model provides an independent AMT gearshift mechanism for electro-tricycle and electro-tricycle, including AMT motor, independent gearshift mechanism and transmission, the independent gearshift mechanism includes sector gear, shift output shaft and shift coupling shaft, AMT motor is engaged with sector gear of independent gearshift mechanism through worm gear and worm, shift output shaft is engaged with shift coupling shaft, and the transmission is engaged with the transmission. The gear shifting output shaft is sleeved with the sector gear, and the lower end of the gear shifting output shaft is in key connection with the gear shifting adapter shaft. The transmission comprises a shifting fork, an input shaft, a second shaft, a transmission output shaft, a sliding rod and a six-claw sliding sleeve, the input shaft and the second shaft are meshed through an involute gear, the second shaft and the transmission output shaft are meshed through an involute gear, the six-claw sliding sleeve is connected with the lower end of the shifting fork, a gear shifting mechanism is independent, the enough gear shifting stroke can be guaranteed, and the gear shifting efficiency is improved. And meanwhile, the independent gear shifting mechanism can be easily installed on the transmission, the output end of the independent gear shifting mechanism can also be matched with most manual transmissions, and the development cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automatic shifting mechanisms, and in particular relates to an independent AMT shifting mechanism for an electric tricycle and the electric tricycle. Background Art

[0002] At present, the automatic two-speed electric tricycles on the market basically use an integrated AMT shift mechanism. This technical solution follows the mature AMT technology in passenger cars. Specifically, it uses the manual transmission as the matrix and realizes the automatic control of the manual transmission's shift fork, which is a part that is operated manually, through electric control. At present, this technology has the disadvantages of short shift stroke, difficult disassembly and assembly, and poor compatibility with manual transmissions. Utility Model Content

[0003] The utility model provides an independent AMT shift mechanism for an electric tricycle and an electric tricycle, so as to solve the problems of short shifting stroke, difficult disassembly and assembly, poor compatibility with a manual 2-speed transmission and high development cost in the prior art integrated ATM shift mechanism for an electric tricycle.

[0004] According to the first aspect of the utility model, one or more embodiments of the present application provide an independent AMT shift mechanism for an electric tricycle, comprising:

[0005] AMT motor, independent shift mechanism and transmission,

[0006] The independent shift mechanism includes a sector tooth, a shift output shaft and a shift transfer shaft. The AMT motor is meshed with the sector tooth of the independent shift mechanism through a worm gear. The sector tooth sleeve is arranged on the shift output shaft. The lower end of the shift output shaft is key-connected with the shift transfer shaft.

[0007] The transmission comprises a shift fork, an input shaft, a second shaft, a transmission output shaft, a slide bar and a six-claw slide sleeve. The input shaft and the second shaft are meshed with involute gears, the second shaft and the transmission output shaft are meshed with involute gears, the transmission output shaft is provided with a first gear tooth and a second gear tooth, the six-claw slide sleeve is located between the first gear tooth and the second gear tooth, and the six-claw slide sleeve is connected to the lower end of the shift fork, the first gear tooth and the second gear tooth are provided with claw holes corresponding to the six-claw slide sleeve, the upper end of the shift fork is sleeved on the slide bar, the two ends of the slide bar are fixed, and the shift fork can slide on the slide bar;

[0008] The upper end of the shift fork is also provided with a clamping groove, and the lower end of the shift adapter shaft is sleeved with a shift rod, and one end of the shift rod is clamped with the clamping groove.

[0009] According to the above technical solution of the utility model, the following improvements can also be made:

[0010] Wherein, a position sensor is provided at the upper end of the shift output shaft, and the position sensor is used to collect rotation information of the shift output shaft.

[0011] Wherein, a speed sensor is provided on the transmission output shaft, and the speed sensor collects rotational speed information of the transmission output shaft.

[0012] It also includes a cavity and a transmission case, wherein the cavity is used to accommodate the independent shifting mechanism, an upper cover plate is provided at the upper end of the cavity, one side of the cavity is connected to the AMT motor, and the shifting output shaft of the independent shifting mechanism passes through the upper and lower ends of the cavity; the cavity is fixed to the transmission case by fastening bolts.

[0013] Among them, one end of the worm gear is connected to the AMT motor through a shaft sleeve, and the other end is connected to the inner wall of the cavity through a shaft sleeve.

[0014] Wherein, the shift output shaft and the shift adapter shaft are integrally formed.

[0015] According to another aspect of the utility model, an electric tricycle is provided, which adopts the independent AMT shifting mechanism for the electric tricycle as described above.

[0016] The beneficial effects of the utility model are:

[0017] Provided are an independent AMT shift mechanism for an electric tricycle and an electric tricycle. The technical solution separates the shift mechanism to ensure sufficient shift travel and can be easily installed on the transmission. The output end of the independent shift mechanism can also be matched with most manual transmissions, reducing development costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an independent AMT shifting mechanism for an electric tricycle and an electric tricycle according to an embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of the installation structure of an independent AMT shifting mechanism for an electric tricycle and a cavity of the electric tricycle according to an embodiment of the utility model.

[0020] Figure 3 This is a schematic diagram of an installation structure of an independent AMT shifting mechanism for an electric tricycle and a cavity and a transmission housing of the electric tricycle according to an embodiment of the utility model.

[0021] Figure 4 This is a schematic structural diagram of an independent AMT shifting mechanism for an electric tricycle and a six-claw sliding sleeve and a shift fork of the electric tricycle according to an embodiment of the utility model.

[0022] Figure 5This is a schematic structural diagram of an independent AMT shift mechanism for an electric tricycle and an electric tricycle in which a shift adapter shaft and a shift output shaft are integrally formed.

[0023] Among them, the AMT motor 1, the sector gear 2, the position sensor 3, the cover plate 4, the cavity 5, the bushing 6, the shift output shaft 7, the shift adapter shaft 8, the input shaft 9, the second shaft 10, the shift fork 11, the first gear teeth 12, the second gear teeth 13, the transmission output shaft 14, the six-claw sliding sleeve 15, the speed sensor 16, the transmission housing 17, and the slot 18. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present application should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in one or more embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "include" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figure 1-Figure 5 As shown, one or more embodiments of the present application provide an independent AMT shifting mechanism for an electric tricycle and an electric tricycle, wherein the independent AMT shifting mechanism comprises:

[0027] An AMT motor 1, an independent shift mechanism and a transmission, wherein the independent shift mechanism comprises a sector tooth 2, a shift output shaft 7 and a shift adapter shaft 8, wherein the AMT motor 1 is meshed with the sector tooth 2 of the independent shift mechanism through a worm gear, wherein the sector tooth 2 is sleeved on the shift output shaft 7, and the lower end of the shift output shaft 7 is key-connected with the shift adapter shaft 8; the transmission comprises a shift fork 11, an input shaft 9, a second shaft 10, a transmission output shaft 14, a sliding rod and a six-claw sliding sleeve 15, wherein the input shaft 9 and the second shaft 10 are meshed with involute gears, and the second shaft 10 and the transmission output shaft 14 are meshed with involute gears, and the transmission A first gear tooth 12 and a second gear tooth 13 are provided on the output shaft 14 of the transmission, the six-claw sleeve 15 is located between the first gear tooth 12 and the second gear tooth 13, and the six-claw sleeve 15 is connected to the lower end of the shift fork 11, and the first gear tooth 12 and the second gear tooth 13 are provided with claw holes corresponding to the six-claw sleeve 15. The upper end of the shift fork 11 is sleeved on the slide rod, and the positions of the two ends of the slide rod are fixed. Specifically, the two ends of the slide rod are fixed on the transmission housing 17, and the shift fork 11 can slide on the slide rod; the upper end of the shift fork 11 also has a slot 18, and the lower end of the shift adapter shaft 8 is sleeved with a shift rod, and one end of the shift rod is engaged with the slot 18.

[0028] Among them, the upper end of the shift output shaft 7 is provided with a position sensor 3, and the position sensor 3 is used to collect the rotation information of the shift output shaft 7. The transmission output shaft 14 is provided with a speed sensor 16, and the speed sensor 16 collects the speed information of the transmission output shaft 14. It also includes a cavity 5 and a transmission housing 17, the cavity 5 is used to accommodate the independent shift mechanism, the upper end of the cavity 5 is provided with an upper cover plate 4, one side of the cavity 5 is connected to the AMT motor 1, and the shift output shaft 7 of the independent shift mechanism passes through the upper and lower ends of the cavity 5; the cavity 5 is fixed to the transmission housing 17 by fastening bolts, and one end of the worm gear is connected to the AMT motor 1 through a sleeve 6. In addition, at the other end, the sleeve 6 can also be connected to the inner wall of the cavity 5 at the equilibrium position so that the two ends of the worm gear are horizontal. The shift output shaft 7 and the shift adapter shaft 8 are integrally formed to improve the stability of the structure, or they are connected by a key connection.

[0029] It can be understood that in the present embodiment, the AMT motor 1 as the power source of the automatic shift actuator has the functions of forward and reverse rotation, torque transmission, waterproof and dustproof, etc. The AMT motor 1 is connected to the sector gear 2 by a worm gear. In addition to being able to transmit torque, it also has a certain self-locking ability to prevent gear disengagement during driving; the sector gear 2 and the shift output shaft 7 are connected by a key, and the shift output shaft 7 and the position sensor 3 are connected by a key. The position sensor 3 collects the rotation signal of the shift output shaft 7 for confirming the gear position during the shifting process. The bottom of the shift output shaft 7 serves as the power output end of the independent shift mechanism, which is connected to the shift adapter shaft 8 of the manual transmission to realize automatic shifting of the manual transmission.

[0030] See also Figure 2 and Figure 3 The cavity 5 of the independent shift mechanism is connected to the transmission housing 17 by fastening bolts, which is convenient for assembly and disassembly. The shift output shaft 7 of the independent shift mechanism is connected to the transmission shift input shaft 9 by a key to realize the power transmission of automatic shifting.

[0031] In addition, the power of the whole vehicle is transmitted from the driving motor to the input shaft 9, and the input shaft 9 and the second shaft 10 use involute gear meshing to transmit torque. The first gear teeth 12 and the second gear teeth 13 of the transmission output shaft 14 are loosely mounted on the output shaft, and the six-claw sleeve 15 and the transmission output shaft 14 are splined to directly transmit torque. By combining the six-claw sleeve 15 with the first gear teeth 12 or the second gear teeth 13 of the transmission output shaft 14, the overall power transmission can be achieved; the speed sensor 16 collects the rotation speed of the transmission output shaft 14, which is used to match the input and output speeds during the gear shifting process.

[0032] The shifting principle is as follows: the electric tricycle is in the first gear when starting, that is, the six-claw sleeve 15 is combined with the first gear tooth 12 of the transmission output shaft 14. When the driving conditions meet the settings of the control system, the control system will issue a command to energize the AMT motor 1, so that the AMT motor 1 rotates forward, and at the same time drives the fan teeth 2 and the shift output shaft 7 to rotate in the circumferential direction. The shift output shaft 7 drives the shift adapter shaft 8 to rotate, and the shift adapter shaft 8 drives the shift fork 11 to move axially. The shift fork 11 drives the six-claw sleeve 15 to disengage from the first gear tooth 12 of the transmission output shaft 14. At this time, the six-claw sleeve 15 enters the neutral position and is not combined with any gear.

[0033] In another embodiment, in order to reduce the impact force when the six-claw sleeve 15 is combined with the second gear tooth 13 of the transmission output shaft 14 to ensure smooth gear shifting, the input end needs to be speed regulated, and the entire speed regulation process is processed according to the signal collected by the speed sensor 16. After the speed regulation is completed, the six-claw sleeve 15 is combined with the second gear tooth 13 of the transmission output shaft 14 to achieve shifting from first gear to second gear. After entering the second gear, whether the gear shift position is accurate is determined by the signal collected by the position sensor 3.

[0034] The sensors and the AMT motor 1 in the embodiment are powered by the battery of the electric tricycle, and the data are uploaded to the control chip for processing.

[0035] In yet another embodiment, an electric tricycle is provided, which adopts the independent AMT shifting mechanism for the electric tricycle as described above.

[0036] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An independent AMT shift mechanism for an electric tricycle, characterized in that include: AMT motor, independent shift mechanism and transmission, The independent shift mechanism includes a sector tooth, a shift output shaft and a shift transfer shaft, the AMT motor is meshed with the sector tooth of the independent shift mechanism through a worm gear, the sector tooth sleeve is arranged on the shift output shaft, and the lower end of the shift output shaft is connected to the shift transfer shaft; The transmission comprises a shift fork, an input shaft, a second shaft, a transmission output shaft, a slide bar and a six-claw slide sleeve. The input shaft and the second shaft are meshed with involute gears, the second shaft and the transmission output shaft are meshed with involute gears, the transmission output shaft is provided with a first gear tooth and a second gear tooth, the six-claw slide sleeve is located between the first gear tooth and the second gear tooth, and the six-claw slide sleeve is connected to the lower end of the shift fork, the first gear tooth and the second gear tooth are provided with claw holes corresponding to the six-claw slide sleeve, the upper end of the shift fork is sleeved on the slide bar, the two ends of the slide bar are fixed, and the shift fork can slide on the slide bar; The upper end of the shift fork is also provided with a clamping groove, and the lower end of the shift adapter shaft is sleeved with a shift rod, and one end of the shift rod is clamped with the clamping groove.

2. The independent AMT shift mechanism for an electric tricycle as claimed in claim 1, characterized in that: A position sensor is provided at the upper end of the shift output shaft, and the position sensor is used to collect rotation information of the shift output shaft.

3. The independent AMT shift mechanism for an electric tricycle as claimed in claim 1, characterized in that: A speed sensor is provided on the transmission output shaft, and the speed sensor collects rotation speed information of the transmission output shaft.

4. The independent AMT shift mechanism for an electric tricycle as claimed in claim 1, characterized in that: It also includes a cavity and a transmission case, wherein the cavity is used to accommodate the independent shifting mechanism, an upper cover plate is provided at the upper end of the cavity, one side of the cavity is connected to the AMT motor, and the shifting output shaft of the independent shifting mechanism passes through the upper and lower ends of the cavity; the cavity is fixed to the transmission case by fastening bolts.

5. The independent AMT shift mechanism for an electric tricycle as claimed in claim 4, characterized in that: One end of the worm gear is connected to the AMT motor through a shaft sleeve, and the other end is connected to the inner wall of the cavity through a shaft sleeve.

6. The independent AMT shift mechanism for an electric tricycle as claimed in claim 1, characterized in that: The shift output shaft and the shift adapter shaft are integrally formed.

7. An electric tricycle, characterized in that: It adopts the independent AMT shifting mechanism for electric tricycle as described in any one of claims 1-6.

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