CN106697828A - Material transportation flow line system on basis of linear motor drive - Google Patents

Abstract

The present invention relates to a logistics transmission line system driven by a linear motor, which includes a logistics transmission system and a PID control system for controlling the logistics transmission system, and the logistics transmission system includes a track and a linear motor arranged on the surface of the track transmission system, a photoelectric switch arranged on the side of the linear motor transmission system; the linear motor transmission system includes a support, a linear motor primary part arranged inside the support, a trolley arranged at the lower end of the linear motor primary part, a set The side edges of the track at the upper and lower ends of the track, the wheels arranged inside the trolley, and the rib columns arranged on the side of the wheels.

Description

A logistics transmission assembly line system based on linear motor drive

technical field

The invention relates to the field of industrial motor application control systems, in particular to a logistics transmission assembly line system driven by a linear motor.

Background technique

In today's highly developed modern industry, the production line has become an indispensable member of the energy field. Many industries, such as electrical, electronics, machinery, chemical, pharmaceutical and other production lines and assembly lines, generally use wire rope or chain transmission. The method is often noisy, slow, and inconvenient to control. Using traditional motor-driven assembly line production can achieve engineering characteristics well for general processing and production, but the energy efficiency in industrial manufacturing processes is not high. Traditional In the assembly line production process provided by the motor drive, a large part of the energy loss will be lost in the transmission process between machines, which is a great waste of energy in terms of energy; at the same time, in some specific precise processing techniques, the traditional production line It is difficult to meet the predetermined requirements. In order to better meet the requirements of more precise processing in the pouring industry and to protect the high efficiency of industrial manufacturing, linear motor-driven assembly lines have become a hot spot in the manufacturing industry. The advantages of linear motors are: simple structure, fast response, high sensitivity, good follow-up, good sealing, not afraid of pollution, and strong adaptability (because the linear motor itself has a simple structure and can achieve non-contact operation, it is easy to seal , each part is impregnated with nylon, and then coated with epoxy resin, so that it is not afraid of wind and rain, or the erosion of toxic gases and chemicals, and can also be used in nuclear radiation and liquid substances), stable and reliable work, Long service life (linear motor is a direct drive special motor, which can realize non-contact transmission, less faults, almost no maintenance, and is not afraid of vibration and shock), high rating (linear motor has good cooling conditions, especially long secondary It is close to the normal temperature state, so the line load and current density can be very high), has the ability of precise positioning and self-locking (cooperating with the control system, it can achieve the displacement accuracy and self-locking ability of 0.001mm), and now the world has Many units have begun to use linear motor drives, including some automobile production lines. In some novel three-dimensional warehouse handling systems and new automated garages, linear motors have also begun to be used. Among them, the automated garage using linear motors is installed on the warehouse floor. A series of vertical and horizontal linear motors are the primary, while the vehicle-carrying board is the secondary. Through the computer, the primary and secondary functions of the linear motor are used to move the car in or out, and the efficiency and utilization rate are very high.

Contents of the invention

The purpose of the present invention is to provide a logistics transmission assembly line system driven by a linear motor, which is used to change the mechanical energy loss due to the mechanical transmission process in the drive process of the forward rotary motor, improve the energy utilization rate, and meet the needs of the work progress to a greater extent. precise control requirements.

The technical scheme that the present invention adopts for solving its technical problem is,

A logistics transmission assembly line system driven by a linear motor, including a logistics transmission system and a PID control system for controlling the logistics transmission system:

The logistics transmission system includes a track, a linear motor transmission system arranged on the surface of the track, and a photoelectric switch arranged on the side of the linear motor transmission system;

The linear motor transmission system includes a support, a linear motor primary part arranged inside the support, a trolley provided at the lower end of the linear motor primary part, and a track side provided at the upper and lower ends of the track for limiting and guiding functions. Along, the wheels arranged inside the trolley, and the ribs arranged on the sides of the wheels;

Further, the PID control system is a fuzzy PID controller. The conventional PID controller is a linear controller, which is controlled according to the control deviation formed by the given input quantity and the actual output quantity. Before applying PID control, it must be based on The controlled object is used to adjust the PID parameters, but in wind power, the controlled object cannot be accurately predicted, and the traditional PID control cannot greatly predict the control requirements, so fuzzy control is used to combine fuzzy control and PID control to form A kind of fuzzy PID controller;

Further, the track is circular or long and straight, and the trolley is used as the secondary part of the linear motor. The air gap between the primary part of the linear motor and the upper part of the trolley is 1-2 mm. When the primary part of the linear motor is After the coil is energized, the trolley moves along the track under the action of the magnetic field force. The upper part of the trolley and the lower part of the trolley are symmetrical about the track, and the two ends of the track are fixed on the inner wall of the side of the bracket. At the upper and lower ends of the track, and the two ends of the wheel are respectively connected with the track and the trolley, and the two ends of the rib column are respectively connected with the upper part of the trolley and the upper part of the trolley;

The lower end of the trolley is also provided with a hook, which is used to hang objects and move with the trolley from one station to the next;

The advantage of the present invention is that,

This kind of logistics transmission line system driven by linear motors reasonably utilizes the principle of linear motors in the motor system. For the low efficiency of energy utilization of traditional rotary motors in the process of mechanical transmission, by changing the energy transfer of the system In this way, the energy loss in the transmission process is changed, and the energy utilization efficiency is greatly improved; at the same time, the control precision in the traditional production line is greatly improved, and the production of some high-precision processes is greatly satisfied.

The linear motor-driven production line based on the linear motor-driven logistics transmission line system improves the efficiency of traditional energy transmission, and at the same time improves the control accuracy and response time of the line, and can effectively improve the low energy utilization rate in industrial production. , and from a general direction, it is the development direction of the industrial assembly line.

Description of drawings

Fig. 1 is the structural representation of the logistics transmission system that the present invention proposes;

Fig. 2 is the schematic diagram of the logistics transmission system that the present invention proposes;

Fig. 3 is the schematic diagram of the PID control system that the present invention proposes;

Among them: 1-track; 2-photoelectric switch; 3-bracket; 4-primary part of linear motor; 5-trolley; 6-side edge of track; 7-wheel;

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.

As shown in Figures 1 to 3, the linear motor-driven logistics transmission assembly line system proposed by the present invention includes a logistics transmission system and a PID control system for controlling the logistics transmission system:

The logistics transmission system includes a track, a linear motor transmission system arranged on the surface of the track, and a photoelectric switch arranged on the side of the linear motor transmission system;

The linear motor transmission system includes a support, a linear motor primary part arranged inside the support, a trolley provided at the lower end of the linear motor primary part, and a track side provided at the upper and lower ends of the track for limiting and guiding functions. Along, the wheels arranged inside the trolley, and the ribs arranged on the sides of the wheels;

As shown in Figure 2, further, the PID control system is a fuzzy PID controller, and the conventional PID controller is a linear controller, which is controlled according to the control deviation formed by the given input quantity and the actual output quantity, Before applying PID control, the PID parameters must be adjusted according to the controlled object, but in wind power, the controlled object cannot be accurately predicted, and the traditional PID control cannot greatly predict the control requirements, so fuzzy control is used to make fuzzy control and PID The controls are combined to form a fuzzy PID controller;

Further, the track is circular or long and straight, and the trolley is used as the secondary part of the linear motor. The air gap between the primary part of the linear motor and the upper part of the trolley is 1-2 mm. When the primary part of the linear motor is After the coil is energized, the trolley moves along the track under the action of the magnetic field force. The upper part of the trolley and the lower part of the trolley are symmetrical about the track, and the two ends of the track are fixed on the inner wall of the side of the bracket. At the upper and lower ends of the track, and the two ends of the wheel are respectively connected with the track and the trolley, and the two ends of the rib column are respectively connected with the upper part of the trolley and the upper part of the trolley;

The lower end of the trolley is also provided with a hook, which is used for hanging objects and moves with the trolley from one station to the next.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and that described in the above-mentioned embodiments and the description only illustrates the principles of the present invention, and the present invention also has various aspects without departing from the spirit and scope of the present invention. Variations and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. a kind of logistics transmission pipeline system driven based on linear electric motors, including logistic transmission system is described with for controlling The PID control system of logistic transmission system, it is characterised in that：

The logistic transmission system includes track, be arranged at the raceway surface linear electric motors Transmission system, be arranged at it is described The optoelectronic switch of linear electric motors Transmission system side；

The linear electric motors Transmission system includes support, is arranged at the linear electric motor primary part of the internal stent, is arranged at The dolly of the linear electric motor primary lower, be arranged at the rail side of the track upper and lower ends along, be arranged at it is described small The wheel in in-car portion, the rib post for being arranged at the wheel face.

2. it is according to claim 1 it is a kind of based on linear electric motors drive logistics transmission pipeline system, it is characterised in that： The PID control system is fuzzy controller.

3. it is according to claim 1 it is a kind of based on linear electric motors drive logistics transmission pipeline system, it is characterised in that： The track is straight annular or long, and the air gap between the linear electric motor primary part and dolly top is 1-2 millimeters, described With the bottom of dolly on Orbital Symmetry, side face inwall, the wheel number are fixed in the track two ends on the top of dolly It is four to measure, and is respectively arranged at the upper and lower ends of track, and wheel two ends are connected with track and dolly respectively, the rib post two End is connected with dolly top and dolly top respectively.

4. it is according to claim 1 it is a kind of based on linear electric motors drive logistics transmission pipeline system, it is characterised in that： The dolly lower end is additionally provided with stirrup.