Manual and automatic gear shifting mechanism

Abstract

The utility model belongs to the technical field of transmissions, and particularly relates to a manual and automatic gear shifting mechanism which comprises a motor, a gearbox is mounted on one side of the motor, a plurality of mounting holes are formed in the side, opposite to the gearbox, of the motor, the mounting holes are circumferentially arranged, and mounting bolts are rotationally connected into the mounting holes. The output end of the motor extends into the gearbox, one side of the inner wall of the gearbox is rotationally connected with an input gear, the output end of the motor is fixedly connected into the input gear, a power conversion mechanism is arranged in the gearbox, and a manual-automatic integrated gear shifting mechanism is arranged in the gearbox. By means of the manual-automatic integrated gear shifting mechanism, the rotating speed and the torque can be changed on equipment where the rotating speed and the torque cannot be changed, the device is small and portable, the changed power can be output outwards through the arranged transmission mechanism, and stepless speed change and manual speed change can be achieved through the arranged manual-automatic integrated gear shifting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of transmissions, in particular to a manual automatic shifting mechanism. Background Art

[0002] A manual automatic shift mechanism refers to a mechanical device in a vehicle's transmission that can manually or automatically control gear changes. Its working principle involves multiple components and processes.

[0003] The Chinese patent (authorization announcement number: CN 208474478 U, authorization announcement date: 2019.02.05) proposes an automatic shifting mechanism for a manual transmission, which is mainly composed of two stepping motors, two gears, a rotating rod, a screw, etc. Its structure is simpler, and there is no mutually perpendicular guide rail design. The entire mechanism occupies a small area, which is conducive to saving car driving space. The utility model redesigns the traditional manual shifting mechanism without changing the manual transmission gear mechanism, realizes the automatic shifting function, and responds quickly, which has great market promotion value.

[0004] An existing manual automatic shift mechanism is generally used inside a car. It has a complex structure and a large size, and is not suitable for small equipment. Generally, the motor does not have the function of speed regulation. At the same time, when the motor is used, the output shaft of the motor may break due to excessive torque, making it unusable. For this reason, we propose a manual automatic shift mechanism. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a manual automatic shifting mechanism to solve the background problem.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A manual automatic shifting mechanism comprises a motor, a gearbox is installed on one side of the motor, a mounting hole is opened on the opposite side of the motor and the gearbox, a plurality of mounting holes are provided and arranged in a circumferential manner, mounting bolts are rotatably connected inside the plurality of mounting holes, an output end of the motor extends to the inside of the gearbox, an input gear is rotatably connected to one side of the inner wall of the gearbox, the output end of the motor is fixedly connected to the inside of the input gear, a power conversion mechanism is provided inside the gearbox, the power conversion mechanism comprises a first transmission gear rotatably connected to one side of the inner wall of the gearbox, the input gear is meshed with the first transmission gear, a second transmission gear is rotatably connected to one side of the inner wall of the gearbox, a transmission mechanism is provided for the first transmission gear and the second transmission gear, and a manual automatic shifting mechanism is provided inside the gearbox.

[0008] Furthermore, the transmission mechanism also includes a transmission roller rotatably connected to one side of the first transmission gear and the second transmission gear, the transmission roller is arranged in a conical shape, and the ends with larger surface areas of the two transmission rollers are fixedly connected to one side of the corresponding first transmission gear and the second transmission gear, so that the two transmission rollers are arranged oppositely, and the outside of the two transmission rollers is rotatably connected with a transmission belt, and the inner wall of the transmission belt is arranged at an angle and is movably sleeved on the outside of the two transmission rollers in an eight-shaped shape so as to fit closely with the outside of the two transmission rollers.

[0009] Furthermore, the transmission mechanism includes an output gear rotatably connected to one side of the inner wall of the gearbox, the output gear is meshed with a second transmission gear, one side of the output gear is fixedly connected to an output shaft, the output shaft extends to the outside of the gearbox, a sliding groove is provided on the outside of the output shaft, and a positioning hole is provided at one end of the output shaft.

[0010] Furthermore, the manual-automatic shift mechanism includes a shift gear rotatably connected to one side of the inner wall of the gearbox, the shift gear meshes with the input gear, a damping member is fixedly connected to one side of the shift gear, a rifle rod is rotatably connected to the inside of the damping member, one end of the rifle rod is rotatably connected to one side of the inner wall of the gearbox, and a rifle sleeve is provided on the outside of the rifle rod.

[0011] Furthermore, the bottom of the rifle sleeve is fixedly connected to a limiting frame, both sides of the limiting frame are fixedly connected with positioning rods, the opposite sides of the two positioning rods are rotatably connected to limiting turntables, and the two limiting turntables are both fitted with the corresponding two sides of the transmission belts, and the bottom of the limiting frame is fixedly connected to a driving rod, both sides of the driving rod are rotatably connected with protective turntables, and one side of the two protective turntables is fitted with one side of the corresponding transmission belt.

[0012] Furthermore, a drive sleeve is fixedly connected to both sides of the inner wall of the gearbox, a drive groove is provided at the top of the drive sleeve, the drive rod extends to the interior of the drive sleeve, one end of the drive rod is fixedly connected to the drive block, a spring is provided inside the drive sleeve, one end of the spring is fixedly connected to one side of the inner wall of the drive sleeve, and one end of the spring is fixedly connected to one side of the drive block.

[0013] Furthermore, the manual-automatic shift mechanism also includes a gear slot opened on the top of the gearbox, the top of the rifle lever is fixedly connected to a gear rod, the gear rod extends to the outside of the gearbox through the gear slot, the top of the gear rod is rotatably connected to a gear limit rod, and the top of the gearbox is provided with a plurality of gear limit blocks, the plurality of gear limit blocks are arranged at intervals, and the plurality of gear limit blocks are all adapted to the gear limit rod.

[0014] Beneficial Effects

[0015] The utility model provides a manual automatic shifting mechanism. Compared with the prior art, it has the following beneficial effects: through the power conversion mechanism, the speed and torque can be changed on the equipment that cannot change the speed and torque, and it is small and portable, through the transmission mechanism, the changed power can be output to the outside, and the manual automatic shifting mechanism can realize stepless speed change and manual speed change. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the main body of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the gearbox of the utility model;

[0019] Figure 4 It is an exploded schematic diagram of the gearbox of the utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part A;

[0021] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of part B.

[0022] In the figure: 1. motor; 2. gearbox; 3. mounting hole; 4. mounting bolt; 5. input gear; 6. first transmission gear; 7. second transmission gear; 8. transmission roller; 9. transmission belt; 10. first sliding bearing; 11. gear limit block; 12. second sliding bearing; 13. output gear; 14. output shaft; 15. slide groove; 16. positioning hole; 17. shift gear; 18. damping element; 19. rifle rod; 20. rifle sleeve; 21. limit frame; 22. positioning rod; 23. limit turntable; 24. drive rod; 25. protective turntable; 26. drive sleeve; 27. drive groove; 28. drive block; 29. ​​spring; 30. gear groove; 31. gear rod; 32. gear limit rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6The utility model provides a technical solution: a manual automatic shifting mechanism, comprising a motor 1, a gearbox 2 is installed on one side of the motor 1, a mounting hole 3 is opened on the opposite side of the motor 1 and the gearbox 2, a plurality of mounting holes 3 are provided and arranged in a circumferential manner, a plurality of mounting holes 3 are rotatably connected inside each of the mounting bolts 4, the gearbox 2 is fixed to one side of the motor 1 through the plurality of mounting bolts 4 and the corresponding plurality of mounting holes 3, the output end of the motor 1 extends to the inside of the gearbox 2, an input gear 5 is rotatably connected to one side of the inner wall of the gearbox 2, the output end of the motor 1 is fixedly connected to the inside of the input gear 5, a power conversion mechanism is provided inside the gearbox 2, the power conversion mechanism comprises a first transmission gear 6 rotatably connected to one side of the inner wall of the gearbox 2, the input gear 5 is meshed with the first transmission gear 6, a second transmission gear 7 is rotatably connected to one side of the inner wall of the gearbox 2, a transmission mechanism is provided between the first transmission gear 6 and the second transmission gear 7, and a manual automatic shifting mechanism is provided inside the gearbox 2.

[0025] The transmission mechanism also includes a transmission roller 8 rotatably connected to one side of the first transmission gear 6 and the second transmission gear 7. The transmission roller 8 is arranged in a conical shape. The ends with larger surface areas of the two transmission rollers 8 are fixedly connected to one side of the corresponding first transmission gear 6 and the second transmission gear 7, so that the two transmission rollers 8 are arranged oppositely. The outsides of the two transmission rollers 8 are rotatably connected with a transmission belt 9. The inner wall of the transmission belt 9 is arranged obliquely and is movably sleeved on the outside of the two transmission rollers 8 in an eight-shaped shape so as to fit with the outsides of the two transmission rollers 8. Since the transmission belt 9 is arranged obliquely, it can fit with one side of one of the transmission rollers 8. 9 is arranged in an eight-shaped shape so that it can fit with the outer surface of another transmission roller 8 at the same time, so that the transmission belt 9 can rotate parallel to the outside of the two transmission rollers 8. The first transmission gear 6 and the second transmission gear 7 are both provided with a first sliding bearing 10 on the outside, and the inner walls of the two first sliding bearings 10 are fixedly connected to the outside of the corresponding first transmission gear 6 and the second transmission gear 7. The outsides of the two first sliding bearings 10 are fixedly connected to one side of the inner wall of the corresponding gearbox 2. One end of the two transmission rollers 8 is fixedly sleeved with a second sliding bearing 12, and the outsides of the second sliding bearings 12 are fixedly connected to one side of the inner wall of the corresponding gearbox 2.

[0026] The transmission mechanism includes an output gear 13 rotatably connected to one side of the inner wall of the gearbox 2. The output gear 13 meshes with the second transmission gear 7. An output shaft 14 is fixedly connected to one side of the output gear 13. The output shaft 14 extends to the outside of the gearbox 2. A sliding groove 15 is provided on the outside of the output shaft 14. A positioning hole 16 is provided at one end of the output shaft 14 to facilitate stable output after power conversion.

[0027] The manual-automatic shift mechanism includes a shift gear 17 rotatably connected to one side of the inner wall of the gearbox 2, the shift gear 17 meshes with the input gear 5, a damping member 18 is fixedly connected to one side of the shift gear 17, a rifle rod 19 is rotatably connected to the inside of the damping member 18, one end of the rifle rod 19 is rotatably connected to one side of the inner wall of the gearbox 2, a rifle sleeve 20 is arranged on the outside of the rifle sleeve 19, the bottom of the rifle sleeve 20 is fixedly connected to a limiting frame 21, and positioning rods 22 are fixedly connected to both sides of the limiting frame 21, and the two positioning rods 2 The opposite side of the gearbox 2 is rotatably connected to a limit turntable 23, and the two limit turntables 23 are both fitted with the two sides of the corresponding transmission belt 9. The bottom of the limit frame 21 is fixedly connected to a driving rod 24, and both sides of the driving rod 24 are rotatably connected to a protective turntable 25, and one side of the two protective turntables 25 is fitted with one side of the corresponding transmission belt 9. The inner wall of the gearbox 2 is fixedly connected to a driving sleeve 26, and a driving groove 27 is opened on the top of the driving sleeve 26. The driving rod 24 extends to the inside of the driving sleeve 26, and one end of the driving rod 24 A driving block 28 is fixedly connected, and a spring 29 is arranged inside the driving sleeve 26. One end of the spring 29 is fixedly connected to one side of the inner wall of the driving sleeve 26, and one end of the spring 29 is fixedly connected to one side of the driving block 28, so that the eight-shaped transmission belt 9 will not rub against each other during rotation, thereby increasing the service life of the transmission belt 9. Further, when the motor 1 is not in use, the spring 29 stretches to drive the driving block 28 to move, and the movement of the driving block 28 drives the driving rod 24 to move, and the movement of the driving rod 24 drives the rifle sleeve 20 to move, so that the rifle rod 19 rotates on the damping member 18, and finally drives the transmission belt 9 to slide on the outside of the two transmission rollers 8, so that the transmission belt 9 is moved to the small diameter position of the transmission roller 8 outside the first transmission gear 6 meshing with the input end, and the transmission belt 9 is moved to the large diameter position of the transmission roller 8 outside the second transmission gear 7 meshing with the output end, so that when the motor 1 is started, it can be started at a low speed and high torque, so as to avoid the output shaft of the motor 1 from breaking due to the instantaneous start-up and acceleration of the output end of the motor 1.

[0028] The manual-automatic shifting mechanism also includes a shift slot 30 opened at the top of the gearbox 2. The top of the rifle lever 19 is fixedly connected to a shift rod 31, which extends to the outside of the gearbox 2 through the shift slot 30. The top of the shift rod 31 is rotatably connected to a shift limit rod 32. A plurality of shift limit blocks 11 are arranged on the top of the gearbox 2. The plurality of shift limit blocks 11 are arranged at intervals, and the plurality of shift limit blocks 11 are adapted to the shift limit rod 32.

[0029] Working principle: first, the gearbox 2 is fixed on one side of the mounting hole 3 through a plurality of mounting bolts 4 and a plurality of mounting holes 3. At the same time, the output end of the motor 1 is matched with the input gear 5 inside the gearbox 2. At this time, the motor 1 is started, so that the output end of the motor 1 rotates, driving the input gear 5 to rotate. The rotation of the input gear 5 drives the first transmission gear 6 to rotate. The rotation of the first transmission gear 6 drives the corresponding transmission roller 8 to rotate. The rotation of the transmission roller 8 drives the external transmission belt 9 to rotate. The rotation of the transmission belt 9 drives another transmission roller 8 to rotate, and drives the corresponding second transmission gear 7 to rotate. The rotation of the second transmission gear 7 drives the output gear 13 to rotate. The rotation of the output gear 13 drives the output shaft 14 to rotate to output power. At the same time, the rotation of the input gear 5 drives the shift gear 17 to rotate. The rotation of the shift gear 17 drives the damping member 18 to rotate. The rotation of the damping member 18 drives the rifle rod 19 to rotate. The rotation of the rifle rod 19 drives the rifle sleeve 20 to move outside the rifle rod 19. The movement of the rifle sleeve 20 drives the limit frame 21 to move. The movement of the frame 21 drives the positioning rod 22 and the driving rod 24 to move, and the movement of the positioning rod 22 and the driving rod 24 drives the corresponding limit turntable 23 and the protective turntable 25 to move, and the corresponding limit turntable 23 and the protective turntable 25 move and drive the transmission belt 9 to move outside the two transmission rollers 8, so that the low speed and high torque output by the output shaft 14 is converted into high-speed rotation. At the same time, the movement of the rifle rod 19 drives the shift rod 31 to slide inside the shift slot 30, and drives the shift limit rod 32 to move. When it moves to the required torque and speed When the gear is in the right position, the gear limit rod 32 is rotated to make the gear limit rod 32 fit with one side of the corresponding gear limit block 11 to fix the transmission ratio. Since the rifle rod 19 is connected to the inside of the damping member 18 for damping rotation, it will not get stuck. When it stops being used, the spring 29 extends to drive the drive block 28 to move, the drive block 28 moves to drive the drive rod 24 to move, the drive rod 24 moves to drive the limit frame 21 to move, and the limit frame 21 moves to drive the rifle sleeve 20 to move, so that the transmission belt 9 returns to low speed and high torque for the next use.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual automatic shift mechanism, comprising a motor (1), characterized in that: A gearbox (2) is installed on one side of the motor (1), and a mounting hole (3) is provided on the opposite side of the motor (1) and the gearbox (2). The mounting holes (3) are provided in a plurality and arranged in a circumferential manner. The interiors of the plurality of mounting holes (3) are all rotatably connected with mounting bolts (4). The output end of the motor (1) extends to the interior of the gearbox (2), and an input gear (5) is rotatably connected to one side of the inner wall of the gearbox (2). The output end of the motor (1) is fixedly connected to the interior of the input gear (5). A power conversion mechanism is provided inside the gearbox (2), and the power conversion mechanism comprises a first transmission gear (6) rotatably connected to one side of the inner wall of the gearbox (2). The input gear (5) meshes with the first transmission gear (6). A second transmission gear (7) is rotatably connected to one side of the inner wall of the gearbox (2). The first transmission gear (6) and the second transmission gear (7) are provided with a transmission mechanism. A manual-automatic shifting mechanism is provided inside the gearbox (2).

2. A manual automatic shift mechanism according to claim 1, characterized in that: The transmission mechanism further comprises a transmission roller (8) rotatably connected to one side of the first transmission gear (6) and the second transmission gear (7); the transmission roller (8) is arranged in a conical shape; the ends with larger surface areas of the two transmission rollers (8) are fixedly connected to one side of the corresponding first transmission gear (6) and the second transmission gear (7), so that the two transmission rollers (8) are arranged in opposite directions; the outsides of the two transmission rollers (8) are rotatably connected to a transmission belt (9); the inner wall of the transmission belt (9) is arranged in an inclined manner and is movably sleeved on the outside of the two transmission rollers (8) in an eight-shaped shape so as to fit the outsides of the two transmission rollers (8).

3. A manual automatic shift mechanism according to claim 2, characterized in that: The transmission mechanism comprises an output gear (13) rotatably connected to one side of the inner wall of the gearbox (2), the output gear (13) meshing with the second transmission gear (7), one side of the output gear (13) being fixedly connected to an output shaft (14), the output shaft (14) extending to the outside of the gearbox (2), a sliding groove (15) being provided on the outside of the output shaft (14), and a positioning hole (16) being provided at one end of the output shaft (14).

4. A manual automatic shift mechanism according to claim 3, characterized in that: The manual-automatic shift mechanism comprises a shift gear (17) rotatably connected to one side of the inner wall of the gearbox (2), the shift gear (17) meshing with the input gear (5), a damping member (18) fixedly connected to one side of the shift gear (17), a rifle rod (19) rotatably connected inside the damping member (18), one end of the rifle rod (19) rotatably connected to one side of the inner wall of the gearbox (2), and a rifle sleeve (20) is arranged outside the rifle rod (19).

5. A manual automatic shift mechanism according to claim 4, characterized in that: The bottom of the rifle sleeve (20) is fixedly connected to a limiting frame (21), and positioning rods (22) are fixedly connected to both sides of the limiting frame (21). The opposite sides of the two positioning rods (22) are rotatably connected to limiting turntables (23), and the two limiting turntables (23) are both in contact with the corresponding two sides of the transmission belt (9). The bottom of the limiting frame (21) is fixedly connected to a driving rod (24), and both sides of the driving rod (24) are rotatably connected to protective turntables (25), and one side of the two protective turntables (25) is in contact with the corresponding one side of the transmission belt (9).

6. A manual automatic shift mechanism according to claim 5, characterized in that: A drive sleeve (26) is fixedly connected to both sides of the inner wall of the gearbox (2), a drive groove (27) is provided on the top of the drive sleeve (26), the drive rod (24) extends to the inside of the drive sleeve (26), one end of the drive rod (24) is fixedly connected to a drive block (28), a spring (29) is provided inside the drive sleeve (26), one end of the spring (29) is fixedly connected to one side of the inner wall of the drive sleeve (26), and one end of the spring (29) is fixedly connected to one side of the drive block (28).

7. A manual automatic shift mechanism according to claim 6, characterized in that: The manual-automatic shift mechanism further comprises a shift slot (30) provided at the top of the gearbox (2); a shift rod (31) is fixedly connected to the top of the rifle lever (19); the shift rod (31) extends to the outside of the gearbox (2) through the shift slot (30); a shift limit rod (32) is rotatably connected to the top of the shift rod (31); a plurality of shift limit blocks (11) are arranged at intervals on the top of the gearbox (2); and the plurality of shift limit blocks (11) are all matched with the shift limit rod (32).

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