CN204677719U - Electric micro-cultivator clutch transmission - Google Patents

Abstract

The utility model discloses a clutch transmission device for an electric micro tillage machine, which controls the power input and stop of the entire motor through a tension wheel and a belt pulley. The gearbox is reasonably designed according to the input power of the motor and the power required for normal farming. The gearbox can realize the transformation of five working states: neutral gear, reverse gear, fast forward, working forward and rotary knife work. In addition, through a certain electrical control circuit, the cylindrical moving magnet linear motor drives the shift fork to perform the shifting function, so as to realize the automatic shifting action. The whole process of gear shifting is fast and reliable by using a cylindrical moving magnet linear motor, which can effectively avoid the phenomenon of manual gear shifting. The gears of the clutch transmission device dedicated to the electric micro tillage machine are various, the structure of the internal gear set is optimized, and the entire shifting process is controlled by the electrical circuit. The shifting is safe and reliable, and the shifting process can be realized only through the touch screen. The communication experience is very comfortable.

Description

Electric Tiller Clutch Transmission

technical field

The utility model belongs to the technical field of electric tillage machines, in particular to a shifting device on the electric tillage machines.

Background technique

The electric micro tillage machine is powered by an electric motor. It has the characteristics of light weight, small size, energy saving and environmental protection, and low production cost. It can be used for intensive farming in greenhouses and tea gardens. The electric tiller can walk freely in the countryside and realize one-handed control. It is simple, convenient, safe and reliable. It solves the problems that large agricultural machinery cannot enter the greenhouse and the huge noise pollution.

At present, most of the gearboxes of gasoline micro-tillers on the market realize the four working states of fast forward, forward, reverse, and work through two shift forks, and the gearboxes are large and heavy. When shifting gears, the connecting rod drives the shift fork to move the gears axially on the shaft, changing the gear meshing scheme to realize the shifting process. The gear box of this structure requires the shift fork to move four times to realize the above functions, so the disadvantages of the above structure are:

The shifting process is complicated, and it is easy to hit the teeth during the shifting process, which will cause damage to the gears and shorten the life of the gears.

There must be two shift forks to realize the shifting function, the structure is complex, the production cost is high, and the gear box is relatively heavy.

Utility model content

The main problem to be solved by the utility model is to use the ARM technology to control the cylindrical moving magnet linear motor to quickly and accurately shift the gear box, redesign the gear box suitable for the motor, and add the tensioning wheel mechanism to form a gear box suitable for electric motors. The electric clutch transmission system of the tiller. the

In order to solve the problems of the technologies described above, a technical solution adopted by the utility model is:

A clutch transmission device for an electric tiller is provided, which is located between the transmission shaft of the electric tiller, the rotary tool holder and the wheels, including: the driving wheel of the motor (1), the belt (2), the driven wheel of the gearbox (3) and the gear Box (4), tensioning wheel (5), wheel shaft (6), rotary knife (7), rotary knife shaft (8), electric motor (9), cylindrical moving magnet linear motor (10), chain box (11 ), the motor (9) is installed on the motor bracket with bolts, the motor bracket can be installed on the gear box (4) through the fixed block on the gear box (4), the wheel shaft (6) and the rotary cutter shaft (8 ) is installed in the gearbox, and the cylindrical moving magnet linear motor (10) is installed outside the gearbox through bolts, and fixed with the shift fork inside the gearbox with a pin hole. The tensioning wheel (5) is installed outside the gearbox (4) through the crank arm and the spring, and the belt (2) between the driving wheel (1) of the motor and the driven wheel (3) of the gearbox is pressed by the tensioning wheel (5) To achieve the purpose of power input.

The beneficial effects of the utility model are: various gear positions, optimized internal gear set structure, using electric circuit to control the whole shifting process, safe and reliable shifting, the shifting process can be realized only through the touch screen, and the human-machine communication experience is very comfortable.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is a schematic diagram of the front structure of the clutch transmission;

Fig. 2 is a side structural schematic view of the clutch transmission;

Figure 3 is a schematic diagram of the gearbox;

Fig. 4 is the side structural view of gear box;

Figure 5 is a front view of the gearbox.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-5, the utility model embodiment comprises:

A clutch transmission device for an electric tiller, which is located between the transmission shaft of the electric tiller, the rotary knife frame and the wheels, and includes: a motor driving wheel (1), a belt (2), a gear box driven wheel (3), Gear box (4), tensioning wheel (5), wheel shaft (6), rotary knife (7), rotary knife shaft (8), electric motor (9), cylindrical moving magnet linear motor (10), chain box ( 11), the motor (9) is installed on the motor bracket with bolts, the motor bracket can be installed on the gear box (4) through the fixed block on the gear box (4), the wheel shaft (6) and the rotary cutter shaft ( 8) Installed in the gearbox, the cylindrical moving magnet linear motor (10) is installed outside the gearbox through bolts, and fixed with the shift fork inside the gearbox with pin holes. The tensioning wheel (5) is installed outside the gearbox (4) through the crank arm and the spring, and the belt (2) between the driving wheel (1) of the motor and the driven wheel (3) of the gearbox is pressed by the tensioning wheel (5) To achieve the purpose of power input.

Pull the tension pulley through the cable device to tighten the belt between the flywheel of the motor and the flywheel of the gearbox to realize power input. The gears on the 5 shafts inside the gearbox reduce the power input by the motor and output it to the wheel shaft and rotary knife. The power output is realized on the shaft. Through the control circuit, the cylindrical moving magnet linear motor drives the shift fork to shift gears. Finally, the four working states of fast walking, working in progress, reverse gear walking and rotary knife work are realized.

The main problem to be solved by the utility model is to use the ARM technology to control the cylindrical moving magnet linear motor to quickly and accurately shift the gear box, redesign the gear box suitable for the motor, and add the tensioning wheel mechanism to form a gear box suitable for electric motors. The electric clutch transmission system of the tiller.

The technical scheme of the utility model is as follows: an automatic clutch transmission system for an electric tiller, including a motor driving wheel (1), a belt (2), a gear box driven wheel (3), a gear box (4), a tensioning Wheel (5), wheel shaft (6), rotary cutter (7), rotary cutter shaft (8), motor (9), cylindrical moving magnet linear motor (10), chain case (11), said motor (9 ) is installed on the motor bracket with bolts, the motor bracket can be installed on the gear box (4) through the fixed block on the gear box (4), and the wheel shaft (6) and the rotary knife shaft (8) are installed in the gear box. The cylindrical moving magnet linear motor (10) is installed outside the gear box through bolts, and is fixed with the shift fork inside the gear box with a pin hole.

According to the above scheme, the gear shifting method originally driven by the joystick to move the shift fork has been changed to use a cylindrical moving magnet linear motor to drive the shift fork to shift gears. The linear motion distance of the cylindrical moving magnet motor is about 30cm, and the power is about 100N, which can completely drive the movement of the entire shift fork.

According to the nature of stepless speed regulation of DC brushless motor, we have designed a gearbox dedicated to the motor. According to the industry standard of the electric micro tillage machine, the rotary knife of the micro tillage machine must reach 60-300r/min, the torque of the rotary knife must reach 20 Nm, and the peak value should be less than 70Nm. The output speed of the motor is 1500 r/min, and the output torque is between 10 Nm. According to the corresponding calculation, the gearbox is designed.

This gear box comprises gear box case body (4), power input shaft (28), wheel shaft (30) sprocket shaft (26), shifting shift fork (24) and is installed on the sliding gear (12) by fixed block. The cylindrical moving magnet linear motor is fixed on the gearbox housing (4) by bolts, and the cylindrical moving magnet linear motor is fixedly connected to the shift fork (24) through pins and pin holes. The sliding gear (12) is installed on the power input shaft (28) through a spline, and the double gear (20) and the double gear (13) are respectively installed on the shaft (29) and the shaft (28) through the sleeve , can rotate freely but cannot slide axially. Gears (14), (15), (16), (17), (18), (19), (21), (22), (23) are installed on the On the shaft, it rotates synchronously with the shaft and cannot move axially.

Control the cylindrical moving magnet linear motor through the control circuit to make the sliding gear (12) slide for gear shifting. When the 35-tooth gear on the sliding gear (12) meshes with the gear (15) on the (27) shaft, Realize fast walking movement, and the final walking speed is about 0.5m/s. When the 14-tooth gear on the sliding gear (20) meshes with the gear (14) on the shaft (27), the working state walking is realized, and the speed is 0.2m /s, the rotation speed of the rotary tiller in the working state is 180r/min, which meets the tillage requirements of the tiller.

The beneficial effect of the clutch transmission device of the utility model is that the structure of the internal gear group is optimized, the entire shifting process is controlled by the electric circuit, the shifting is safe and reliable, and the shifting process can be realized only through the touch screen, man-machine The communication experience is very comfortable.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (1)

1. an electric micro-cultivator clutch transmission, it is characterized in that, be in the transmission shaft of electric micro-cultivator and revolve between knife rest and wheel, comprise: motor driving wheel (1), belt (2), gear-box follower (3), gear-box (4), Idle wheel (5), wheel axle (6), revolve cutter (7), revolve cutter shaft (8), motor (9), cylindrical moving-magnet linear motor (10), drive chain case (11), described motor (9) is installed on support of motor with bolt, support of motor can be allowed to be installed on gear-box (4) by the fixed block on gear-box (4), wheel axle (6) and revolve cutter shaft (8) and be arranged in gear-box, cylindrical moving-magnet linear motor (10) is arranged on outside gear-box by bolt, fix with the shift fork pin-and-hole of gear-box inside, Idle wheel (5) by crank arm with spring fitting at gear-box (4) outward, Idle wheel (5) belt (2) compressed between motor driving wheel (1) and gear-box follower (3) is utilized to reach the object of power input.