Automatic assembly control system for groove type heat collector

Abstract

The automatic assembly control system comprises a pneumatic control unit, a positioning walking unit, a positioning detection unit and an electrical control unit, the pneumatic control unit comprises a pneumatic control assembly, workpiece grabbing mechanisms and a magnetic switch, the workpiece grabbing mechanisms are arranged and distributed at the lower end of a truss, and the magnetic switch is arranged at the lower end of the truss. The magnetic switch is installed at the air cylinder detection end of the workpiece grabbing mechanism, and the pneumatic control assembly controls the workpiece grabbing mechanism to conduct workpiece grabbing motion through the magnetic switch. The positioning walking unit is matched with walking racks on main beams at the two ends of the truss, and the electric control unit controls the positioning walking unit to drive the truss to move along the main beams. The positioning detection unit is installed on the heat collector installation frame and used for monitoring the hoisting position of the heat collector. And the electrical control unit is respectively in control connection with the pneumatic control unit, the positioning walking unit and the positioning detection unit. According to the utility model, the installation efficiency and the installation precision can be improved, and the labor cost and the installation cost can be greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of trough solar collector applications, and specifically relates to an automatic assembly and control system for trough solar collectors. Background Technology

[0002] Parabolic trough solar thermal power generation systems convert solar radiation into heat energy through concentrating solar collectors. However, in the market, the installation and assembly of space grid steel structures mainly rely on manual labor. This method is not only time-consuming and inefficient, but also results in significant deviations in the precision of the installed structure. These factors not only increase labor and manufacturing costs, but also make it difficult to meet the stringent assembly precision requirements of parabolic trough collectors. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an automatic assembly and control system for trough solar collectors, which can not only improve installation efficiency and accuracy, but also greatly reduce labor costs and installation costs.

[0004] The main technical solution adopted in this utility model is as follows:

[0005] An automatic assembly control system for a parabolic trough solar collector includes a pneumatic control unit, a positioning and walking unit, a positioning detection unit, and an electrical control unit, wherein...

[0006] The pneumatic control unit includes a pneumatic control component, several sets of workpiece gripping mechanisms, and several magnetic switches. The workpiece gripping mechanisms are arranged and distributed at the lower end of the frame. The magnetic switches are installed at the cylinder detection end of the workpiece gripping mechanism. The pneumatic control component controls the workpiece gripping mechanism to perform workpiece gripping movement through the magnetic switches.

[0007] The positioning and walking unit is installed on the gantry and cooperates with the walking racks on the main beams at both ends of the gantry. The positioning and walking unit is controlled by the electrical control unit to drive the gantry to move along the main beams.

[0008] The positioning detection unit is installed on the collector mounting frame and is used to monitor the hoisting position of the collector;

[0009] The electrical control unit is connected to the pneumatic control unit, the positioning and walking unit, and the positioning detection unit respectively.

[0010] Preferably, the pneumatic control assembly includes a circuit breaker, a power module I, a fuse, several valve island communication modules, and several valve blocks. The circuit breaker is connected to the power module via a terminal block. The power module I supplies power to the valve island communication modules and valve blocks via the terminal block and the fuse, respectively. The valve island communication modules are communicatively connected to the PLC controller in the electrical control unit. The PLC controller controls the valve block movement via I / O signals to drive the workpiece gripping mechanism.

[0011] Preferably, the workpiece gripping mechanism includes a direct-push cylinder, a horizontal-push cylinder, a tensioning cylinder, and a workpiece hook. The direct-push cylinder is located at the lower end of the frame and is used to drive the horizontal-push cylinder, the tensioning cylinder, and the workpiece hook to move up and down as a whole. The tensioning cylinder is slidably mounted on the transverse slide rail. The driving end of the horizontal-push cylinder is connected to the tensioning cylinder and is used to drive the tensioning cylinder to move laterally. The driving end of the tensioning cylinder is connected to the workpiece hook and is used to drive the workpiece hook to move up and down.

[0012] Preferably, the positioning and walking unit includes several servo motors, several limit switches, and several scaffolds. The scaffolds are arranged parallel to each other between two main beams. Each scaffold has a servo motor at both ends. The output end of each servo motor is connected to a walking gear drive. Each scaffold has a limit switch at both ends. The walking gears at both ends of the scaffold work in conjunction with the walking racks on the main beams to drive the scaffolds to move. The servo motors and the limit switches are respectively connected to the PLC controller of the electrical control unit.

[0013] Preferably, the positioning detection unit includes a proximity switch, a positioning slot, and a positioning support frame. The positioning support frame is mounted on the collector mounting bracket, and positioning slots are provided at both ends of the positioning support frame for placing the positioning end plate of the collector. The proximity switch is mounted on the positioning slot for real-time monitoring of the installation position information of the collector.

[0014] Preferably, the electrical control unit includes a PLC controller, a transceiver antenna, a servo controller, a wireless controller, and a power module II. The PLC controller interacts with the servo controller, the wireless controller, and the valve island communication module. The wireless controller receives command signals through the transceiver antenna and transmits the information to the PLC controller. The PLC controller receives the signals and controls the operation of each workpiece gripping mechanism in the pneumatic control unit through the valve island communication module. The servo controller is connected to the servo motor in the positioning and walking unit, and the power module II is connected to supply power to each component.

[0015] Preferably, some of the gantry frames can be individually moved in jog motions or linked to positioning motions.

[0016] Beneficial effects: This utility model provides an automatic assembly control system for parabolic trough solar collectors. After the parabolic trough solar collector is hoisted into place by a positioning detection unit, the gantry is moved to a predetermined position by a wireless remote control or HMI touch screen. Then, the workpiece gripping mechanism automatically grips the workpieces, which improves assembly efficiency and accuracy, reduces manpower consumption, and saves installation costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the pneumatic control unit of this utility model;

[0020] Figure 4 This is a schematic diagram of the pneumatic control component of this utility model;

[0021] Figure 5 This is a schematic diagram of the workpiece gripping mechanism of this utility model.

[0022] Figure 6 This is a schematic diagram of the positioning detection unit of this utility model;

[0023] Figure 7 This is a schematic diagram of the electrical control unit of this utility model;

[0024] Figure 8 This is a schematic diagram of the internal structure of the electrical control unit of this utility model;

[0025] In the diagram: Pneumatic control unit 1, pneumatic control component 1-1, circuit breaker 1-11, power module I 1-12, fuse 1-13, valve island communication module 1-14, terminal block 1-15, valve block 1-16, workpiece gripping mechanism 1-2, direct thrust cylinder 1-21, horizontal thrust cylinder 1-22, tension cylinder 1-23, workpiece hook 1-24, magnetic switch 1-3, positioning and walking unit 2, servo motor 2-1, limit switch 2-2, gantry 2-3, positioning detection unit 3, proximity switch 3-1, positioning card Slot 3-2, Electrical control unit 4, PLC controller 4-1, Transceiver antenna 4-2, Servo controller 4-3, Wireless controller 4-4, Power module II 4-5, Electrical control cabinet 4-6, Three-color light 4-7, HMI touch screen 4-8, AC busbar 4-9, Circuit breaker 4-10, Rotary circuit breaker 4-11, Rotary short circuit breaker 4-12, Operation button 4-13, Emergency stop button 4-14, Power switch 4-15, 8-port gateway switch 4-16, Travel rack 5, Main beam 6, Solar collector mounting bracket 7. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application. Example

[0027] As shown in 1-2, an automatic assembly control system for a trough solar collector includes a pneumatic control unit 1, a positioning and walking unit 2, a positioning and detection unit 3, and an electrical control unit 4. The pneumatic control unit 1 includes a pneumatic control component 1-1, several sets of workpiece gripping mechanisms 1-2, and several magnetic switches 1-3. Several workpiece gripping mechanisms 1-2 are arranged and distributed at the lower end of the frame 2-3. The pneumatic control component controls the workpiece gripping mechanisms 1-2 to perform workpiece gripping movement through the magnetic switches 1-3.

[0028] The positioning and walking unit 2 is installed on the frame 2-3 and cooperates with the walking racks 5 on the main beams 6 at both ends of the frame 2-3. The positioning and walking unit 2 is controlled by the electrical control unit 4 to drive the frame to move along the main beam.

[0029] The positioning detection unit 3 is installed on the collector mounting frame 7 and is used to monitor the hoisting position of the collector;

[0030] The electrical control unit 4 is connected to the pneumatic control unit 1, the positioning and walking unit 2, and the positioning detection unit 3 respectively.

[0031] like Figure 3 As shown, in this embodiment 1, the pneumatic control unit 1 includes 4 pneumatic control components 1-1, 24 workpiece gripping mechanisms 1-2, and several magnetic switches 1-3. The 4 pneumatic control components 1-1 are respectively installed on both sides of two scaffolds (one on each side of each scaffold). The 24 workpiece gripping mechanisms are aligned and installed at the lower end of the scaffolds 2-3 (each scaffold has 24 workpiece gripping mechanisms). The magnetic switches are installed at the cylinder detection end of the workpiece gripping mechanism 1-2, and each workpiece gripping mechanism 1-3 is equipped with 6 magnetic switches to detect the switching position of the cylinder, so as to facilitate the observation of the actual position of the cylinder action and provide real-time feedback to the PLC controller.

[0032] like Figure 4As shown, in this embodiment 1, each pneumatic control component 1-1 includes a circuit breaker 1-11, a power module I 1-12, a fuse 1-13, two valve island communication modules 1-14, and 48 valve blocks 1-16. The circuit breaker 1-11 (10A) is mounted on the guide rail and connected to the power module I 1-12 (24V DC) through the terminal block 1-15. The power module I 1-13 supplies power to the two valve island communication modules 1-14 and the 48 valve blocks 1-16 (three-position five-way center seal) through the terminal block 1-15 and the fuse 1-13 (5A). The valve island communication module 1-14 communicates with the PLC controller 4-1 in the electrical control unit 4 through the PROFINET communication protocol. The PLC controller 4-1 controls the valve block 1-16 to drive the cylinder of the workpiece gripping mechanism 1-2 to complete the workpiece gripping action.

[0033] like Figure 5 As shown, the workpiece gripping mechanism 1-2 includes a direct-push cylinder 1-21, a horizontal-push cylinder 1-22, a tensioning cylinder 1-23, and a workpiece hook 1-24. The direct-push cylinder 1-21 is located at the lower end of the frame 2-3 and drives the horizontal-push cylinder 1-22, tensioning cylinder 1-23, and workpiece hook 1-24 to move up and down as a whole. The tensioning cylinder 1-23 is slidably mounted on a transverse slide rail. The driving end of the horizontal-push cylinder 1-22 is connected to the tensioning cylinder 1-23, driving the tensioning cylinder 1-23 to move laterally. The driving end of the tensioning cylinder 1-23 is connected to the workpiece hook 1-24, driving the workpiece hook 1-24 to move up and down. In this embodiment 1, the horizontal-push cylinder 1-22 and the tensioning cylinder 1-23 are integrally mounted on the driving end of the direct-push cylinder 1-21, and their overall up-and-down movement with the driving end of the direct-push cylinder 1-21 is a conventional technical approach.

[0034] In this embodiment 1, six magnetic switches 1-3 are respectively installed on the detection end of each cylinder to detect the actual movement of the cylinder. When the gantry moves to the designated position, the valve block 1-16 is controlled by wireless remote control or touch screen and PLC controller 4-1 to drive the workpiece gripping mechanism 1-2 to move. The specific gripping process is as follows: After the workpiece hook 1-24 grips the workpiece, the direct push cylinder 1-21 is driven to move the workpiece hook 1-24 upward. Then, the horizontal push cylinder 1-22 is driven to move for 5 seconds, driving the tension cylinder 1-23 to move laterally, so that the workpiece gripped by the workpiece hook 1-24 reaches the designated position. Finally, the tension cylinder 1-23 is driven to move the workpiece hook 1-24 upward, thereby locking the workpiece and positioning the gripped workpiece to facilitate subsequent riveting work.

[0035] like Figure 2As shown, the positioning and walking unit 2 includes four servo motors 2-1 (750W), two limit switches 2-2, and two scaffolds 2-3. The two scaffolds 2-3 are arranged parallel to each other between two main beams 6. Each scaffold 6 has a servo motor 2-1 at both ends. The output end of each servo motor 2-1 is connected to the walking gear drive. Each scaffold 2-1 has a limit switch 2-2 at both ends. The walking gears at both ends of the scaffold 2-3 work in conjunction with the walking rack 5 on the main beam 6 to drive the scaffold 2-3 to move. The servo motors 2-1 and the limit switches 2-2 are respectively connected to the PLC controller 4-1.

[0036] In this embodiment 1, two limit switches 2-2 serve as hard limit protection switches for the gantry 2-3 and are connected to the internal DI point of the PLC controller 4-1.

[0037] In this embodiment 1, the PLC controller can be communicated through a wireless controller or HMI touch screen to control the servo motor 2-1, thereby realizing the individual jogging action or linkage positioning action of the two gantry cranes.

[0038] like Figure 6 As shown, the positioning detection unit 3 includes a proximity switch 3-1, a positioning slot 3-2, and a positioning support frame 3-3. The positioning support frame 3-3 is mounted on the collector mounting frame, and both ends of the positioning support frame 3-3 are provided with positioning slots 3-2 for placing the positioning end plates of the collector. The proximity switch 3-1 is mounted on the positioning slots 3-2 for real-time monitoring of the collector installation information. When the grid-type collector is hoisted into place (i.e., after the collector positioning end plates are placed in the positioning slots 3-2), the proximity switch detects the signal indicating that the actual position of the collector has reached the designated position. This signal is fed back to the PLC controller 4-1 via DI signals. When all DI signals (a total of 4) are detected, the system can communicate with the PLC controller via a wireless controller or HMI touchscreen to control the operation of the dedicated area mechanism.

[0039] like Figure 7-8 As shown, the electrical control unit 4 includes a PLC controller 4-1, a transceiver antenna 4-2, four servo controllers 4-3, a wireless controller 4-4, and a power module II 4-5 (40A). The PLC controller 4-1 interacts with the servo controllers 4-3, the wireless controllers 4-4, and the valve island communication module 1-14. The wireless controller 4-4 receives command signals through the transceiver antenna 4-2 and transmits the information to the PLC controller. The PLC controller 4-1 receives the signals and controls the operation of each workpiece gripping mechanism 1-2 in the pneumatic control unit 1 through the valve island communication module 1-14. The servo controllers 4-3 are connected to the servo motors 2-1 in the positioning and walking unit 2. The power module II 4-5 is connected to supply power to each component.

[0040] In this embodiment 1, the transceiver antenna 4-2 (433MHz) is installed on the top of the electrical control cabinet 4-6 for transmitting and receiving control signals from the wireless remote controller. The wireless controller 4-4 receives control information through the transceiver antenna 4-2. The top of the electrical control cabinet is also equipped with a three-color indicator 4-7, which displays the power-on status, working status, and fault status, and also features a buzzer alarm function.

[0041] In this embodiment 1, an HMI touch screen 4-8 is installed on the surface of the electrical control cabinet 4-6. The HMI touch screen is connected to the PLC via a Profinet network cable and is used to perform linkage control or independent control of the two gantry cranes 2-3 and the 48 workpiece gripping mechanisms 1-2. At the same time, the manual operation area of ​​the electrical control cabinet 4-6 is also equipped with operation buttons 4-13, emergency stop buttons 4-14 and power switches 4-15, which are used to control the main power supply and handle emergency events.

[0042] In this embodiment 1, four servo controllers 4-3 and one 40A power module II 4-5 are respectively connected to the 100A circuit breaker 4-10, the 40A rotary circuit breaker 4-11, and the 15A rotary short circuit breaker 4-12 on the AC busbar 4-9. The 1511T PLC controller 4-1 is connected to the 8-port gateway switch 4-16 via a Profinet protocol network cable for data interaction with the servo controllers 4-3, the wireless controller 4-4, and the valve island communication module 1-14.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic assembly control system for a trough collector, characterized in that, It comprises a pneumatic control unit, a positioning walking unit, a positioning detection unit and an electrical control unit, wherein, The pneumatic control unit comprises a pneumatic control assembly, a plurality of workpiece grabbing mechanisms and a plurality of magnetic switches, the workpiece grabbing mechanisms are arranged and distributed at the lower end of the frame, the magnetic switches are installed at the cylinder detection end of the workpiece grabbing mechanism, and the pneumatic control assembly controls the workpiece grabbing mechanism to make workpiece grabbing movement through the magnetic switch; The positioning walking unit is installed on the frame and cooperates with the walking rack on the main beam at both ends of the frame, and the electrical control unit controls the positioning walking unit to drive the frame to move along the main beam; The positioning detection unit is installed on the collector mounting frame and is used for monitoring the hoisting position of the collector; The electrical control unit is connected with the pneumatic control unit, the positioning walking unit and the positioning detection unit respectively.

2. The automatic assembly control system for a trough collector according to claim 1, characterized in that, The pneumatic control assembly comprises a circuit breaker, a power module I, a fuse, a plurality of valve island communication modules and a plurality of valve blocks, wherein the circuit breaker is connected with the power module through a terminal, the power module I supplies power to the valve island communication module and the valve block through a terminal and a fuse respectively, the valve island communication module is in communication connection with a PLC controller in the electrical control unit, and the PLC controller controls the valve block to act through an IO signal to drive the workpiece grabbing mechanism to act.

3. The automatic assembly control system for a trough collector according to claim 1, characterized in that, The workpiece grabbing mechanism comprises a straight push cylinder, a flat push cylinder, a tensioning cylinder and a workpiece hook, the straight push cylinder is arranged at the lower end of the frame and is used for driving the flat push cylinder, the tensioning cylinder and the workpiece hook to act integrally, the tensioning cylinder is slidingly installed on the horizontal moving slide rail, the driving end of the flat push cylinder is connected with the tensioning cylinder and is used for driving the tensioning cylinder to move horizontally, and the driving end of the tensioning cylinder is connected with the workpiece hook and is used for driving the workpiece hook to move up and down.

4. The automatic assembly control system for a trough collector according to claim 1, characterized in that, The positioning walking unit comprises a plurality of servo motors, a plurality of travel switches and a plurality of frames, the frames are arranged in parallel between the two main beams, the two ends of each frame are provided with a servo motor, the output end of each servo motor is drivingly connected with a walking gear, one travel switch is arranged at the two ends of each frame, the walking gears at the two ends of the frame are respectively matched with the walking racks on the main beams and are used for driving the frame to move, and the servo motor and the travel switch are connected with a PLC controller of the electrical control unit.

5. The automatic assembly control system for a trough collector according to claim 1, characterized in that, The positioning detection unit comprises a proximity switch, a positioning clamping groove and a positioning support frame, the positioning support frame is arranged on the collector mounting frame, the two ends of the positioning support frame are provided with the positioning clamping grooves and are used for placing the positioning end plate of the collector, and the proximity switch is installed on the positioning clamping groove and is used for monitoring the installation position information of the collector in real time.

6. The automatic assembly control system for a trough collector according to claim 1, characterized in that, The electric control unit comprises a PLC controller, a transceiving antenna, a servo controller, a wireless controller and a power module II, wherein the PLC controller respectively interacts with the servo controller, the wireless controller and a valve island communication module, the wireless controller transmits information to the PLC controller after receiving an instruction signal through the transceiving antenna, the PLC controller controls each workpiece grabbing mechanism in the pneumatic control unit to act through the valve island communication module after receiving the signal, the servo controller is connected with a servo motor in the positioning walking unit, and the power module II is connected with each component for power supply.

7. The automatic assembly control system for a trough collector according to claim 1, characterized in that, The several row frames can be separately and individually actuated or linked and positioned.

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