阅读说明：本技术 一种电动叉车电控动力系统 (Electric control power system of electric forklift ) 是由 李惊 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种电动叉车电控动力系统,包括底架,所述底架的顶端设置有传动轴,所述传动轴的两端均固定连接有行动轮,所述底架靠近传动轴的位置固定连接有两个固定架,两个所述固定架与传动轴之间转动连接,所述传动轴固定连接有第一传动齿轮,所述底架的顶部靠近传动轴的一侧设置有行走电机,所述行走电机的输出轴靠近传动轴的一端固定连接有第二传动齿轮,所述第二传动齿轮与第一传动齿轮之间啮合连接。本发明中,作业电机与行走电机共同工作,以便提高车速与扭矩,这样,行走电机在设计时无需考虑大动态过载的情况,两个电机同时输出动力,互为补充,每台电动机均工作在额定范围内,降低了电流冲击,延长了电机的系统寿命,同时降低了能耗。(The invention discloses an electric control power system of an electric forklift, which comprises an underframe, wherein a transmission shaft is arranged at the top end of the underframe, both ends of the transmission shaft are fixedly connected with a driving wheel, two fixing frames are fixedly connected at the positions of the underframe close to the transmission shaft, the two fixing frames are rotatably connected with the transmission shaft, the transmission shaft is fixedly connected with a first transmission gear, a traveling motor is arranged at one side of the top of the underframe close to the transmission shaft, a second transmission gear is fixedly connected at one end of an output shaft of the traveling motor close to the transmission shaft, and the second transmission gear is meshed with the first transmission gear. In the invention, the operation motor and the walking motor work together so as to improve the speed and the torque, thus, the walking motor does not need to consider the condition of large dynamic overload during design, the two motors output power simultaneously and supplement each other, each motor works in a rated range, the current impact is reduced, the system life of the motor is prolonged, and the energy consumption is reduced.)

1. The utility model provides an electronic control power system of electric fork-lift truck, includes chassis (1), its characterized in that: the top of chassis (1) is provided with transmission shaft (2), the equal fixedly connected with action wheel (7) in both ends of transmission shaft (2), chassis (1) is close to two mounts (4) of position fixedly connected with of transmission shaft (2), two rotate between mount (4) and transmission shaft (2) and be connected, transmission shaft (2) fixedly connected with first transmission gear (3), one side that the top of chassis (1) is close to transmission shaft (2) is provided with walking motor (5), the one end fixedly connected with second drive gear (6) that the output shaft of walking motor (5) is close to transmission shaft (2), mesh connection between second drive gear (6) and first transmission gear (3), the one end fixedly connected with clutch (9) of first transmission gear (3) is kept away from to the output shaft of walking motor (5), the one end that walking motor (5) was kept away from in clutch (9) is provided with operation motor (14), fixed connection between the output shaft of operation motor (14) and clutch (9), be provided with motor controller (12) between operation motor (14) and walking motor (5), equal fixed connection has power cable (13) between motor controller (12) and operation motor (14) and walking motor (5), fixed connection between motor controller (12) and chassis (1), the one end fixedly connected with dead lever (17) of transmission shaft (2) are kept away from in chassis (1), all rotate between both sides of dead lever (17) and chassis (1) and be connected with steering column (16), two the one end that chassis (1) and dead lever (17) were kept away from in steering column (16) all rotates and is connected with pinion rack (15).

2. The electric control power system of the electric forklift according to claim 1, wherein: the walking motor (5) and the bottom of the operation motor (14) are fixedly connected with motor supports (8), and the motor supports (8) and the bottom frame (1) are fixedly connected.

3. The electric control power system of the electric forklift according to claim 1, wherein: the clutch (9) comprises a flywheel disc (901), the flywheel disc (901) is fixedly connected with an output shaft of the walking motor (5), the flywheel disc (901) is fixedly connected with a clutch assembly shell (905), a clutch assembly (902) is arranged in the clutch assembly shell (905), the clutch assembly (902) is fixedly connected with an output shaft of the working motor (14), one side of the output shaft of the working motor (14) close to the clutch assembly shell (905) is rotatably connected with a release bearing (903), a release fork (904) is fixedly connected to one side of the release bearing (903) far away from the clutch assembly shell (905), one side of the separating fork (904) far away from the separating bearing (903) is fixedly connected with a pull rope (11), one end of the inhaul cable (11) far away from the separation fork (904) is fixedly connected with a clutch actuator (10).

4. The electric control power system of the electric forklift according to claim 3, wherein: the clutch assembly is characterized in that the clutch assembly shell (905) is connected with an output shaft of the operation motor (14) in an embedded mode, and the clutch actuator (10) and the motor controller (12) are fixedly connected with the power cable (13).

5. The electric control power system of the electric forklift according to claim 1, wherein: the outer sides of the two steering rods (16) are rotatably connected with steering wheels (18).

6. The electric control power system of the electric forklift according to claim 1, wherein: the walking motor (5) is designed to be a low-speed large-torque motor, and the operation motor (14) is designed to be a high-speed motor.

Technical Field

The invention relates to the technical field of electric forklifts, in particular to an electric control power system of an electric forklift.

Background

The electric forklift is simple and flexible to operate and control, and the operation intensity of an operator is much lighter than that of an internal combustion forklift, so that the electric forklift is more and more favored by users;

at present, an electric forklift often walks and does not operate at the same time, if a forklift lifting machine works, a vehicle generally cannot move in a large range, and on the other hand, the lifting machine generally cannot work when the vehicle runs. The result is that the non-working time of the motor is large, the running motor can be frequently overloaded and operated under certain working conditions, the service life of the running motor is reduced due to the impact of large current, and the energy consumption is increased. While the work motor is always in an idle state. The motor is designed by fully considering the overload condition of a large dynamic range, so that the redundancy is increased in design, and the cost is increased.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an electric control power system of an electric forklift.

In order to achieve the purpose, the invention adopts the following technical scheme: an electric control power system of an electric forklift comprises an underframe, wherein a transmission shaft is arranged at the top end of the underframe, both ends of the transmission shaft are fixedly connected with driving wheels, two fixing frames are fixedly connected at the positions, close to the transmission shaft, of the underframe, the two fixing frames are rotationally connected with the transmission shaft, a first transmission gear is fixedly connected with the transmission shaft, a walking motor is arranged at one side, close to the transmission shaft, of the top of the underframe, a second transmission gear is fixedly connected with one end, close to the transmission shaft, of an output shaft of the walking motor, a second transmission gear is meshed with the first transmission gear, a clutch is fixedly connected with one end, far away from the first transmission gear, of the output shaft of the walking motor, an operation motor is arranged at one end, far away from the walking motor, of the clutch is fixedly connected with the output shaft of the operation motor, equal fixed connection has the power cable between motor controller and operation motor and the walking motor, fixed connection between motor controller and the chassis, the one end fixedly connected with dead lever of transmission shaft is kept away from to the chassis, all rotate between the both sides of dead lever and the chassis and be connected with the steering column, two the one end that chassis and dead lever were kept away from to the steering column all rotates and is connected with the pinion rack.

As a further description of the above technical solution:

the walking motor and the bottom of the operation motor are fixedly connected with motor supports, and the two motor supports are fixedly connected with the underframe.

As a further description of the above technical solution:

the clutch includes the flywheel dish, fixed connection between the output shaft of flywheel dish and walking motor, flywheel dish fixedly connected with clutch assembly shell, the inside of clutch assembly shell is provided with the clutch assembly, fixed connection between the output shaft of clutch assembly and operation motor, one side rotation that the output shaft of operation motor is close to clutch assembly shell is connected with release bearing, one side fixedly connected with release fork that clutch assembly shell was kept away from to release bearing, one side fixedly connected with cable that release bearing was kept away from to the release fork, the one end fixedly connected with clutch executor that release fork was kept away from to the cable.

As a further description of the above technical solution:

the clutch assembly shell is connected with an output shaft of the operation motor in an embedded mode, and the clutch actuator and the motor controller are fixedly connected with the power cable.

As a further description of the above technical solution:

the outer sides of the two steering rods are rotatably connected with steering wheels.

As a further description of the above technical solution:

the walking motor is designed to be a low-speed large-torque motor, and the operation motor is designed to be a high-speed motor.

The invention has the following beneficial effects:

1. the electric control power system of the electric forklift is characterized in that a motor controller on a chassis controls a traveling motor on a motor bracket to drive a second transmission gear through a power cable so as to drive a first transmission gear and a transmission shaft on a fixing frame, so that a traveling wheel pushing device moves, when high-speed traveling and high-power climbing are required, the motor controller outputs a control signal through a power cable box clutch actuator, so that a clutch assembly in a clutch assembly shell is coupled with a flywheel disc through a guy cable, a release fork and a release bearing, so that an operation motor and the traveling motor work together to improve the speed and the torque, therefore, the traveling motor does not need to consider the condition of large dynamic overload during design, two motors output power simultaneously and supplement each other, each motor works in a rated range, the current impact is reduced, and the system life of the motor is prolonged, and simultaneously, the energy consumption is reduced.

2. This automatically controlled driving system of electric fork-lift will use this system to turn to the time, through meshing control pinion rack, can make the steering column between dead lever and the chassis drive the directive wheel, very convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a steering column according to the present invention;

FIG. 3 is a schematic view of the clutch of the present invention;

fig. 4 is a control flow chart of the motor controller of the present invention.

Illustration of the drawings: 1. a chassis; 2. a drive shaft; 3. a first drive gear; 4. a fixed mount; 5. a traveling motor; 6. a second transmission gear; 7. a running wheel; 8. a motor bracket; 9. a clutch; 901. a flywheel disc; 902. a clutch assembly; 903. separating the bearing; 904. a separation fork; 905. a clutch assembly housing; 10. a clutch actuator; 11. a cable; 12. a motor controller; 13. a power cable; 14. an operation motor; 15. a toothed plate; 16. a steering lever; 17. fixing the rod; 18. and a steering wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: an electric control power system of an electric forklift comprises an underframe 1, wherein a transmission shaft 2 is arranged at the top end of the underframe 1, both ends of the transmission shaft 2 are fixedly connected with a driving wheel 7, two fixing frames 4 are fixedly connected at the positions of the underframe 1 close to the transmission shaft 2, the two fixing frames 4 are rotatably connected with the transmission shaft 2, the transmission shaft 2 is fixedly connected with a first transmission gear 3, one side of the top of the underframe 1 close to the transmission shaft 2 is provided with a walking motor 5, one end of an output shaft of the walking motor 5 close to the transmission shaft 2 is fixedly connected with a second transmission gear 6, the second transmission gear 6 is meshed with the first transmission gear 3, one end of the output shaft of the walking motor 5 far away from the first transmission gear 3 is fixedly connected with a clutch 9, one end of the clutch 9 far away from the walking motor 5 is provided with an operation motor 14, be provided with motor controller 12 between operation motor 14 and the walking motor 5, equal fixed connection has power cable 13 between motor controller 12 and operation motor 14 and the walking motor 5, fixed connection between motor controller 12 and the chassis 1, the one end fixedly connected with dead lever 17 of transmission shaft 2 is kept away from to chassis 1, all rotate between the both sides of dead lever 17 and the chassis 1 and be connected with steering column 16, the one end that chassis 1 and dead lever 17 were kept away from to two steering column 16 all rotates and is connected with pinion rack 15.

The bottoms of the walking motor 5 and the operation motor 14 are fixedly connected with motor supports 8, and the two motor supports 8 are fixedly connected with the underframe 1, so that the walking motor 5 and the operation motor 14 can be fixedly supported; the clutch 9 comprises a flywheel disc 901, the flywheel disc 901 is fixedly connected with an output shaft of the walking motor 5, the flywheel disc 901 is fixedly connected with a clutch assembly shell 905, a clutch assembly 902 is arranged inside the clutch assembly shell 905, the clutch assembly 902 is fixedly connected with an output shaft of the operation motor 14, one side, close to the clutch assembly shell 905, of the output shaft of the operation motor 14 is rotatably connected with a release bearing 903, one side, far away from the clutch assembly shell 905, of the release bearing 903 is fixedly connected with a release fork 904, one side, far away from the release bearing 903, of the release fork 904 is fixedly connected with a guy cable 11, one end, far away from the release fork 904, of the guy cable 11 is fixedly connected with a clutch actuator 10, so that the coupling between the walking motor 5 and the operation motor 14 is conveniently completed, the torque is increased; the clutch assembly shell 905 is connected with an output shaft of the operation motor 14 in an embedded mode, and the clutch actuator 10 and the motor controller 12 are fixedly connected with the power cable 13, so that the motor controller 12 can output control signals through the power cable 13 and the clutch actuator 10 conveniently; the outer sides of the two steering rods 16 are rotatably connected with steering wheels 18, so that the steering of the equipment can be conveniently completed when the equipment is used; the walking motor 5 is designed to be a low-speed large-torque motor, the operation motor 14 is designed to be a high-speed motor, the two motors output power simultaneously and complement each other, each motor works within a rated range, current impact is reduced, the system life of the motors is prolonged, and energy consumption is reduced.

The working principle is as follows: when an electric control power system of an electric forklift is used, a motor controller 12 on a chassis 1 controls a traveling motor 5 on a motor bracket 8 through a power cable 13 to drive a second transmission gear 6, and further drives a first transmission gear 3 and a transmission shaft 2 on a fixed frame 4, so that a traveling wheel 7 pushes equipment to move, when high-speed traveling and high-power climbing are required, the motor controller 12 outputs a control signal through a clutch actuator 10 of a box of the power cable 13, so that a clutch assembly 902 in a clutch assembly shell 905 is coupled with a flywheel disc 901 through a guy cable 11, a release fork 904 and a release bearing 903, and further an operation motor 14 and the traveling motor 5 work together to improve the speed and the torque, therefore, the traveling motor 5 does not need to consider the condition of large dynamic overload when being designed, two motors output power simultaneously and supplement each other, and the motors work within a rated range, the current impact is reduced, the system service life of the motor is prolonged, the energy consumption is reduced, when the system is used for steering, the steering rod 16 between the fixed rod 17 and the chassis 1 can drive the steering wheel 18 through the meshing control toothed plate 15, and the system is very convenient and has certain practicability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.