Mechanical neutral gear recognition device of electro-tricycle

Abstract

The utility model relates to the field of electro-tricycle gear shifting structures, in particular to an electro-tricycle mechanical neutral gear recognition device which comprises a declutch shift shaft side cover detachably installed on a gearbox, a high-low gear rocker arm arranged on the declutch shift shaft side cover and a high-low declutch shift shaft, one end of the high-low gear rocker arm is connected with a gear shifting pull wire, and the other end of the high-low gear rocker arm is connected with a gear shifting pull wire. One end of the shifting fork shaft is connected with the shifting pull wire, the other end of the shifting fork shaft is connected with the high-low shifting fork shaft, the shifting pull wire is connected with the speed change gear handball, magnetic steel is arranged in the high-low shifting fork shaft, a magnetic switch is further arranged on the shifting fork shaft side cover, and in the neutral gear state, the magnetic switch is located over the magnetic steel. The problems that neutral gear transition exists between two-gear machines at the present stage, but after active damping is added, if the neutral gear cannot be recognized, a motor can continuously work, and therefore a user cannot engage a gear or mistakenly engages the gear, and then axle gear mechanical abrasion is caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of gear shifting structures for electric tricycles, specifically to a mechanical neutral gear recognition device for electric tricycles. Background Technology

[0002] Current electric tricycles generally use a mechanical shifting structure, which uses two significantly different speed ratios to meet the power requirements of different working conditions. Similar to the structure of automobiles, there is a neutral gear between the two mechanical gears. However, after adding active damping, if the neutral gear cannot be detected, the motor will continue to work, causing the user to be unable to shift gears or to shift gears incorrectly, resulting in mechanical wear of the rear axle gears.

[0003] In summary, a mechanical neutral gear recognition device for electric tricycles is proposed to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a mechanical neutral gear recognition device for electric tricycles, which has a shifting operation function, can meet the mechanical neutral gear recognition, is used to adapt to the active damping adjustment of the whole vehicle, simplifies the mechanical recognition design of two-speed transmission, increases the user experience, and improves the overall vehicle performance.

[0005] An electric tricycle mechanical neutral gear recognition device includes a detachable shift fork shaft cover mounted on the gearbox. The shift fork shaft cover has a high / low gear rocker arm and a high / low gear shift fork shaft. One end of the high / low gear rocker arm is connected to a shift cable, and the other end is connected to the high / low gear shift fork shaft. The shift cable is connected to a gear shift knob. A magnet is installed inside the high / low gear shift fork shaft. A magnetic switch is also installed on the shift fork shaft cover. In the neutral gear position, the magnetic switch is located directly above the magnet.

[0006] Further specified, the shift fork shaft cover is provided with a rocker arm mounting seat, the rocker arm mounting seat is provided with a pin hole, a pin is provided in the pin hole, the outer diameter of the bottom of the pin is larger than the diameter of the pin hole, and the high and low gear rocker arm is sleeved on the pin.

[0007] Further specified, the top of the pin passes through the pin hole and is provided with a limiting ring, the limiting ring is placed on the upper end face of the rocker arm mounting base, the upper part of the pin is provided with a limiting hole, and a limiting pin is inserted into the limiting hole.

[0008] Further specified, the shift fork shaft cover is provided with a through hole for the high and low gear shift fork shaft to pass through. One end of the high and low gear shift fork shaft passes through the through hole and is located inside the gearbox, while the other end is located outside the gearbox. A magnet groove is opened at the upper end located on the outside side of the gearbox. The magnet is embedded in the magnet groove. After embedding, the height of the part of the magnet protruding from the magnet groove is 1mm.

[0009] Further specifying, the lower end of the high / low gear shift fork shaft located on the outer side of the gearbox is provided with a groove, one end of the high / low gear rocker arm is hemispherically engaged in the groove, and the other end is connected to the shift cable.

[0010] Furthermore, the shift fork shaft cover is also provided with a mounting bracket, and the magnetic switch is mounted on the mounting bracket by a nut.

[0011] The advantages of this utility model over the current technology are as follows:

[0012] The driver operates the gear shift knob to control the transmission to engage neutral. The system uses a magnetic switch and a magnet to determine whether the gear is in neutral, simplifying the mechanical recognition design of the two-speed transmission, improving the user experience, and enhancing the overall vehicle performance. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 This is a three-dimensional schematic diagram of the high and low gear rocker arm of this utility model;

[0015] Figure 3 This is a three-dimensional assembly diagram of the various components of this utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the shift fork shaft side cover of this utility model.

[0017] The markings in the diagram correspond to: 1-gearbox, 2-shift fork shaft cover, 3-rocker arm mounting base, 31-pin hole, 4-pin shaft, 5-limit ring, 6-limit pin, 7-high and low gear rocker arm, 8-high and low gear shift fork shaft, 9-magnet, 10-mounting bracket, 11-magnetic switch. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0019] like Figures 1-4As shown, an electric tricycle mechanical neutral gear recognition device includes a detachable shift fork shaft cover 2 mounted on a gearbox 1. A rocker arm mounting seat 3 is provided on the shift fork shaft cover 2, and a pin hole 31 is provided on the rocker arm mounting seat 3. A pin 4 is inserted into the pin hole 31. The outer diameter of the bottom of the pin 4 is larger than the diameter of the pin hole 31. The top of the pin 4 passes through the pin hole 31 and is provided with a limit ring 5, which is secured to the upper end face of the rocker arm mounting seat 3. A limit hole is provided on the upper part of the pin 4, and a limit pin 6 is inserted into the limit hole to prevent the pin 4 from falling off. The device also includes a high / low gear rocker arm 7 and a high / low gear shift fork shaft 8. The shift fork shaft cover 2 is provided with a through hole for the high / low gear shift fork shaft 8 to pass through. One end of the high / low gear shift fork shaft 8... The high / low gear shift fork shaft 8 passes through the through hole and is located inside the gearbox 1, with the other end located outside the gearbox 1. A magnetic steel groove is provided on the upper end of the side of the gearbox 1, and a magnet 9 is embedded in the magnetic steel groove. The height of the part of the magnet 9 protruding from the magnetic steel groove is 1mm. A groove is provided on the lower end of the high / low gear shift fork shaft 8 located outside the gearbox 1. The middle part of the high / low gear rocker arm 7 is sleeved on the pin shaft 4. One end is connected to the shift cable, and the shift cable is connected to the gear shift knob. The other end is hemispherical and is engaged in the groove of the high / low gear shift fork shaft 8. A mounting bracket 10 is also provided on the side cover of the shift fork shaft. A magnetic switch 11 is installed on the mounting bracket 10 by a nut. In the neutral state, the magnetic switch 11 is located directly above the magnet 9.

[0020] After the vehicle is started, the driver indirectly controls the high / low gear rocker arm 7 by operating the gear shift knob to select high gear, neutral, or low gear. This is achieved by moving the high / low gear shift fork shaft 8 inwards or outwards through the gearbox 1, controlling the gearbox 1 to switch between high, neutral, and low gears. The driver can also engage neutral by operating the gear shift knob. When the magnet 9 is directly below the magnetic switch 11, the magnetic switch 11 recognizes the magnetic signal from the magnet 9, activates, identifies neutral, and transmits this information to the motor controller to reduce the current speed and control the active damping force, ensuring the motor can stop while idling and preventing gearbox 1 from grinding. When the high / low gear rocker arm 7 is moved, causing the high / low gear shift fork shaft 8 to move outwards or inwards through the gearbox 1, the magnet 9 follows suit. At this time, the magnet 9 and the magnetic switch 11 are misaligned, the magnetic switch 11 cannot recognize the magnetic signal, and the magnetic switch 11 does not activate, indicating a non-neutral state.

[0021] The above provides a detailed description of the mechanical neutral gear recognition device for electric tricycles provided by this utility model. The description of the specific embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the premise of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A mechanical neutral gear recognition device for an electric tricycle, characterized in that: The system includes a detachable shift fork shaft cover (2) mounted on the gearbox (1), on which a high / low gear rocker arm (7) is provided, and a high / low gear shift fork shaft (8) is also provided. One end of the high / low gear rocker arm (7) is connected to the shift cable, and the other end is connected to the high / low gear shift fork shaft (8). The shift cable is connected to the gear shift knob. A magnet (9) is provided inside the high / low gear shift fork shaft (8). A magnetic switch (11) is also provided on the shift fork shaft cover (2). In neutral, the magnetic switch (11) is located directly above the magnet (9).

2. The electric tricycle mechanical neutral gear recognition device according to claim 1, characterized in that: The shift fork shaft cover (2) is provided with a rocker arm mounting seat (3), the rocker arm mounting seat (3) is provided with a pin hole (31), a pin shaft (4) is provided in the pin hole (31), the outer diameter of the bottom of the pin shaft (4) is larger than the diameter of the pin hole (31), and the high and low gear rocker arm (7) is sleeved on the pin shaft (4).

3. The electric tricycle mechanical neutral gear recognition device according to claim 2, characterized in that: The top of the pin (4) passes through the pin hole (31) and is provided with a limiting ring (5). The limiting ring (5) is placed on the upper end face of the rocker arm mounting base (3). The upper part of the pin (4) is provided with a limiting hole, and a limiting pin (6) is inserted into the limiting hole.

4. The electric tricycle mechanical neutral gear recognition device according to claim 3, characterized in that: The shift fork shaft cover (2) is provided with a through hole for the high and low gear shift fork shaft (8) to pass through. One end of the high and low gear shift fork shaft (8) passes through the through hole and is located inside the gearbox (1), while the other end is located outside the gearbox (1). A magnet groove is provided on the upper end of the side outside the gearbox (1). The magnet (9) is embedded in the magnet groove. After being embedded, the height of the part of the magnet (9) protruding from the magnet groove is 1 mm.

5. The electric tricycle mechanical neutral gear recognition device according to claim 4, characterized in that... The high and low gear shift fork shaft (8) is provided with a groove at the lower end of the side outside the gearbox (1). One end of the high and low gear rocker arm (7) is hemispherical and is engaged in the groove, and the other end is connected to the shift cable.

6. The electric tricycle mechanical neutral gear recognition device according to claim 1, characterized in that... The fork shaft cover (2) is also provided with a mounting bracket (10), and the magnetic switch (11) is mounted on the mounting bracket (10) by a nut.

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