CN102954203B - Electromobile gear-shifting operation mechanism - Google Patents

Abstract

The invention discloses an electric vehicle shifting operation mechanism, which comprises a cavity composed of left and right outer covers (1, 2), and a boss shift drum (3) is arranged in the cavity, and the boss shift drum ( The upper part of 3) is connected with the push rod (5) arranged outside the cavity through the main shaft (4), and the reverse gear slider combination and the gear shift slider are respectively combined at the front and rear of the lower end surface of the boss gear shift drum (3) The combination is connected with the reverse gear cable (6) and the shift cable (7), and a gear holding device connected with the boss gear shift drum (3) is arranged on the inner wall of the right outer cover (2). The present invention has the advantages of ingenious structural design and convenient operation. It can simultaneously manipulate two kinds of cables with different strokes to move simultaneously, and it also has the advantages of stable and reliable performance.

Description

An electric vehicle shift control mechanism

technical field

The invention relates to an electric vehicle, in particular to an electric vehicle shift control mechanism.

Background technique

At present, the structure of the shifting mechanism of the electric vehicle is relatively simple, and the shifting mechanism with one or two cables is generally used for high-speed and low-speed shifting.

In CN201907628U, an invention patent named "a three-wheeled motorcycle transmission control mechanism" is disclosed, which includes a sequentially connected joystick, cable bracket, push-pull cable, shift seat, shift arm and shift fork shaft A shift fork is arranged on the shift fork shaft, and a joystick positioning mechanism is arranged on the cable support, and the joystick is connected with the joystick positioning mechanism. Although it can perform simple high-speed gear and low-speed gear conversion by using a cable, it still has the disadvantages of simple structure and poor gear retention, which makes it jump gears and disorderly gears, resulting in three-wheeled motorcycles. The car cannot run normally.

In CN202418540U, an invention patent named "shift control mechanism" is disclosed, which includes a mounting bracket and a joystick, a supporting shaft is arranged on the mounting bracket, and a first gear positioning plate, The second gear positioning plate and the operating rod shift positioning plate, the other side surface of the mounting bracket is provided with a first cable mechanism and a second cable mechanism, and the connecting end of the operating rod is movably sleeved on the support shaft. The gear position positioning plate is pierced with a first stop bar, one end of the first stop bar is rotatably sleeved on the support shaft, the other end of the first stop bar is fixed with a first shift block, and the first cable mechanism is connected with the first stop bar. A stop bar is connected; the second stop bar is pierced with a second stop bar, one end of the second stop bar is rotatably sleeved on the support shaft, and the other end of the second stop bar is fixed with a second shifting block. The second cable mechanism is connected with the second stop bar. Although such a structure can carry out the conversion of three gears, the structure of the shifting control mechanism is too complicated. Once a problem occurs, it is extremely inconvenient to maintain and has a short service life. Too long makes the operation inconvenient, and the manufacturing cost of the gearshift mechanism is relatively high.

Contents of the invention

The object of the present invention is to provide an electric vehicle gear shifting control mechanism capable of manipulating two kinds of drag cables with different strokes to move simultaneously.

The object of the present invention is achieved through such a technical solution, an electric vehicle gear shifting mechanism, which includes a cavity formed by left and right outer covers, and a boss shift drum is arranged in the cavity, and the boss shift drum The upper part of the upper part of the boss is connected with the push rod arranged outside the cavity through the main shaft, the front part of the lower end surface of the boss shift drum is connected with the reverse gear cable through the reverse gear slider combination, and the rear part of the lower end face of the boss shift drum is passed through the shift slider The combination is connected with the shifting cable, and a gear holding device connected with the boss shifting drum is arranged on the inner wall of the right outer cover.

Wherein, the gear holding device includes a steel ball, a shift positioning plate corresponding to the rear end surface of the boss shift drum and arranged on the inner wall of the right outer cover, and a spring arranged in the boss shift drum. A low-speed gear concave hole is provided, a high-speed gear concave hole is arranged on the left side of the low-speed gear concave hole, a reverse gear concave hole is arranged on the right side of the low-speed gear concave hole, and one end of the spring is pressed against the steel ball Above, the steel ball is located in the concave hole of the low-speed gear.

The reverse gear slider combination of the present invention includes a reverse gear slider, a reverse gear cable hook and a reverse gear pin. One end of the reverse gear slider is connected to the left and right housings through a connecting shaft A, and the other end is connected through a connecting shaft B. Connected with the left and right outer covers, one end of the reverse gear hook is located on the upper end surface of the reverse slide block (14), the other end is connected with the reverse gear cable, and one end of the reverse gear pin passes through the reverse gear hook And it is connected with the reverse gear sliding block, and the other end penetrates in the boss gear change drum.

The shift slider combination of the present invention includes a shift slider, a shift cable hook and a shift pin, one end of the shift slider is connected to the left and right housings through a connecting shaft C, and the other end is connected through a connecting shaft D It is connected with the left and right outer covers, one end of the shift cable hook is located on the upper end surface of the shift sliding block, and the other end is connected with the shift cable, and one end of the shift pin passes through the shift cable hook and is connected with the shift The gear sliding block is connected, and the other end passes through the boss gear shift drum.

In order to play the role of fixing and guiding, both the reverse gear cable and the shift cable are connected to the left outer cover through respective cable positioning posts.

Due to the adoption of the above technical solution, the present invention has the advantages of ingenious structural design and convenient operation:

1. The overall structure is reasonable and compact, and the operation is convenient;

2. Low manufacturing cost and long service life. According to experiments, each gear can be used more than 100,000 times for gear change;

3. The circular motion is converted into a linear motion through the boss speed change drum, which can convert a circular motion into a linear motion that controls multiple different strokes at the same time;

4. It is directly connected with the power shift control arm through the cable, and the control performance is good;

5. Gear shifting and gear position maintenance are positioned by springs and steel balls, so that the gears will not be out of gear or messy when working, and the working performance is stable and reliable.

Description of drawings

The accompanying drawings of the present invention are as follows:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a sectional view along line A-A of Fig. 1 .

Detailed ways

The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments, and any improvement or substitution on the basic spirit of this embodiment still belongs to the claims of the present invention. scope.

Embodiment 1: As shown in Figures 1 and 2, an electric vehicle shifting operation mechanism includes a cavity composed of left and right outer covers 1 and 2, and a boss shift drum 3 is arranged in the cavity, and the boss The upper part of the table shifting drum 3 is connected with the push rod 5 arranged outside the chamber through the main shaft 4, the front part of the lower end surface of the boss shifting drum 3 is connected with the reverse gear cable 6 through the combination of reverse gear sliders, and the boss shifting drum 3 The rear part of the end face is connected with the shift cable 7 through the shift slider assembly, and the gear holding device connected with the boss shift drum 3 is arranged on the inner wall of the right outer cover 2 .

Wherein, the above-mentioned gear holding device includes a steel ball 8, a shift positioning plate 9 corresponding to the rear end surface of the boss shift drum 3 and arranged on the inner wall of the right outer cover 2, and a spring 10 arranged in the boss shift drum 3, The middle part on the shift positioning plate 9 is provided with a low-speed gear concave hole 11, and the left side of the low-speed gear concave hole 11 is provided with a high-speed gear concave hole 12, and the right side of the low-speed gear concave hole 11 is provided with a reverse gear. Gear concave hole 13 , one end of the spring 10 bears on the steel ball 8 , and the steel ball 8 is located in the low-speed gear concave hole 11 .

The reverse gear slider combination of the present invention includes a reverse gear slider 14, a reverse gear cable hook 15 and a reverse gear pin 16, and one end of the reverse gear slider 14 is connected to the left and right housings 1, 2 through the connecting shaft A17. The other end is connected with the left and right housings 1 and 2 through the connecting shaft B18. One end of the reverse gear hook 15 is located on the upper end surface of the reverse gear sliding block 14, and the other end is connected with the reverse gear cable 6. One end of the gear pin 16 passes through the reverse gear cable hook 15 and is connected with the reverse gear sliding block 14 , and the other end penetrates into the boss shift drum 3 .

The shift slider combination of the present invention includes a shift slider 19, a shift cable hook 20 and a shift pin 21, and one end of the shift slider 19 is connected to the left and right housings 1 and 2 through a connecting shaft C22. , the other end is connected with the left and right housings 1 and 2 through the connecting shaft D23, one end of the shift cable hook 20 is located on the upper end surface of the shift sliding block 19, and the other end is connected with the shift cable 7, the shift One end of the pin 21 passes through the shift cable hook 20 and is connected with the shift sliding block 19 , and the other end penetrates into the boss shift drum 3 .

The present invention works like this: the initial position of the shifting double-action operating mechanism is the gear of the high-speed gear, and the steel ball 8 on the boss shift drum 3 is aligned with the high-speed gear concave hole 12 on the shift positioning plate 9. Under the effect of 10, the steel ball 8 hemispheres embed the high-speed gear concave hole 12 on the shift positioning plate 9, so that the push rod 5 remains in the high-speed gear.

When the push rod 5 is in the low-speed position, the push rod 5 drives the main shaft 4 to rotate, and the main shaft 4 drives the boss shift drum 3 to rotate, so that the steel ball 8 on the boss shift drum 3 is aligned with the low-speed gear on the shift positioning plate 9. The gear hole 11, the steel ball 8 is under the action of the spring 10, and the hemisphere of the steel ball 8 is embedded in the low-speed gear hole 11 on the shift positioning plate 9, so that the push rod 5 is kept in the low-speed gear position, and at the same time, the boss shift drum 3 Drive the reverse gear sliding block 14 and the shifting sliding block 19 to move to the positions specified in the design along the connecting shaft A17, connecting shaft B18, connecting shaft C22 and connecting shaft D23 respectively, the reverse gear cable hook 15 on the reverse gear sliding block 14 and After the reverse gear cable 6 and the gear shift cable 7 connected to the gear shift cable hook 20 on the gear shift sliding block 19 move at the same time to meet the distance required by the gear shift, the vehicle power directly connected to the drag cable can realize gear shifting. The car changes from high gear to low gear.

When the push rod 5 is in the reverse gear position, the push rod 5 drives the main shaft 4 to rotate, and the main shaft 4 drives the boss shift drum 3 to rotate, so that the steel ball 8 on the boss shift drum 3 is aligned with the reverse gear on the shift positioning plate 9. Gear hole 13, steel ball 8 under the action of spring 10, steel ball 8 hemisphere embedded in the reverse gear hole 11 on the shift positioning plate 9, so that the push rod 5 is kept in the reverse gear position, while the boss shift drum 3 Drive the reverse gear sliding block, the connecting shaft A17 and the connecting shaft B18 of the shifting sliding block, the connecting shaft C22 and the connecting shaft D23 to move to the positions specified in the design, the reverse gear cable hook 15 on the reverse sliding block 14 and the shifting sliding block After the reverse gear cable 6 and the gear shift cable 7 connected to the gear shift cable hook 20 on the 19 move at the same time to meet the distance required for gear shifting, the power of the vehicle directly connected to the cable is realized to change gears. into reverse gear.

In the present invention, both the reverse gear cable 6 and the shift cable 7 are connected to the left outer cover 1 through respective cable positioning posts 24 . Doing this can play the role of fixing and guiding the reverse gear cable 6 and the shift cable 7.

Claims (5)

1. an electric motor car gearshift control gear, it is characterized in that: it comprises by a left side, right outside cover (1, 2) cavity forming, in cavity, be provided with boss speed transmission drum (3), the top of described boss speed transmission drum (3) is connected with the push rod (5) being arranged on outside cavity by main shaft (4), the front portion of boss speed transmission drum (3) lower end surface is connected with reverse gear drag-line (6) by the combination of reverse gear slide block, the rear portion of boss speed transmission drum (3) lower end surface is connected with shift drag-line (7) by the combination of shift slide block, on right outside cover (2) inwall, be provided with the gear holding device being connected with boss speed transmission drum (3).

2. electric motor car gearshift control gear as claimed in claim 1, it is characterized in that: described gear holding device comprises steel ball (8), corresponding with boss speed transmission drum (3) ear end face and be arranged on the shift positioning plate (9) on right outside cover (2) inwall and be arranged on the spring (10) in boss speed transmission drum (3), middle part on shift positioning plate (9) is provided with low gear shrinkage pool (11), be provided with high gear shrinkage pool (12) in the left side of low gear shrinkage pool (11), be provided with backing car gear shrinkage pool (13) on the right side of low gear shrinkage pool (11), one end of described spring (10) withstands on steel ball (8), described steel ball (8) is positioned at low gear shrinkage pool (11).

3. electric motor car gearshift control gear as claimed in claim 2, it is characterized in that: described reverse gear slide block combination comprises reverse gear slide blocks (14), reverse gear drag-line hook (15) and reverse gear pin (16), one end of described reverse gear slide blocks (14) is by coupling shaft A(17) with left, right outside cover (1, 2) connect, the other end is by coupling shaft B(18) with left, right outside cover (1, 2) connect, one end of described reverse gear drag-line hook (15) is positioned at reverse gear slide blocks (14) upper-end surface, the other end is connected with reverse gear drag-line (6), one end of described reverse gear pin (16) is through reverse gear drag-line hook (15) and be connected (14) with reverse gear slide blocks, the other end penetrates in boss speed transmission drum (3).

4. electric motor car gearshift control gear as claimed in claim 2 or claim 3, it is characterized in that: described shift slide block combination comprises shift slide blocks (19), shift drag-line hook (20) and shift pin (21), one end of described shift slide blocks (19) is by coupling shaft C(22) with left, right outside cover (1, 2) connect, the other end is by coupling shaft D(23) with left, right outside cover (1, 2) connect, one end of described shift drag-line hook (20) is positioned at shift slide blocks (19) upper-end surface, the other end is connected with shift drag-line (7), one end of described shift pin (21) is linked up with (20) and is connected with shift slide blocks (19) through shift drag-line, the other end penetrates in boss speed transmission drum (3).

5. electric motor car gearshift control gear as claimed in claim 4, is characterized in that: reverse gear drag-line (6) is all connected with left outside cover (1) by drag-line locating column (24) separately with shift drag-line (7).