Electrical system for large-dip-angle square bale picking and stacking machine

Abstract

The utility model relates to the technical field of pick-up machines, in particular to an electrical system for a large-dip-angle square bale pick-up stacker crane, which comprises a square bale pick-up stacker crane, a remote controller unit, a logic control unit, a sensor unit and an execution output unit, the remote controller unit is in wired connection with the logic control unit. The sensor unit and the execution output unit are in wired connection with the logic control unit. By means of the sensor unit, the logic control unit, the execution output unit and the remote controller unit, manual and automatic remote control over square bale picking and stacking is achieved, an operator achieves remote operation through a picking machine remote controller, the workload of the operator is reduced, and efficiency is improved; the straw bales are picked up through the dip angle pickup device, the pickup device can adapt to pickup types of multiple straw bales, meanwhile, damage caused by bale ropes is reduced, the integrity of the square straw bales is guaranteed to the maximum extent, and the pickup efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of pickup machine technology, and in particular to an electrical system for a large-angle square bale pickup and palletizing machine. Background Technology

[0002] In recent years, with the rapid development of my country's animal husbandry, the explosive growth of forage machinery products is inevitable.

[0003] The square bale pick-up and stacking machine is a type of forage processing machinery that breaks away from the traditional manual methods of picking up bales, stacking, and loading. It achieves automatic picking up, stacking, and stacking of square bales through a picking mechanism under the front of the chassis, a traveling mechanism at the rear of the chassis, a tilting and loading mechanism on the frame, a stacking device, a pressing fork, a hydraulic transmission system, a hydraulic lifting system, and an electrical control system, thereby saving labor costs and improving production efficiency.

[0004] With the rapid development of automation technology, complex machine structures cannot be manually controlled by operators, greatly increasing the difficulty and barrier to entry for operators. Furthermore, existing bale picking and palletizing machines are limited in their picking devices, restricting the types of bales they can pick and resulting in low picking efficiency. Current picking devices only achieve high picking rates for specific types of bales, such as natural grassland bales, but are not suitable for other types, such as alfalfa bales, corn stalk bales, and mesh bag bales, which are lighter and have a higher breakage rate. Compared to clamp-type picking machines, which have the lowest breakage rate, the clamp-type picking method is not as efficient as the motor-chain type. Considering these factors, this new invention can meet the requirements of high picking success rates for various bales, ensuring bale integrity, while also achieving the efficiency of a motor-chain type picking machine. It allows for continuous operation without stopping, combining the advantages of both motor-chain and clamp-type machines. Summary of the Invention

[0005] This invention provides an electrical system for a large-angle square bale picking and palletizing machine, which improves the picking success rate, can pick up a variety of bale types and reduce damage to the binding rope, and maximizes the integrity of the square bale. The operator can remotely operate the machine through a remote control, reducing the workload of the operator and improving efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electrical system for a large-angle square bale picking and palletizing machine includes the square bale picking and palletizing machine, a remote control unit, a logic control unit, a sensor unit, and an execution output unit. The logic control unit is mounted on the square bale picking and palletizing machine. The remote control unit is wired to the logic control unit. The sensor unit and the execution output unit are wired to the logic control unit.

[0008] The square bale picking and stacking machine includes a chassis and a traveling mechanism, a large-angle picker, a power unit, a tilting platform, and a collection platform mounted on the chassis. The traveling mechanism is located at the bottom of the chassis. The tail end of the large-angle picker is connected to the tilting platform, and a platform push plate is set at the front end of the tilting platform. The square bale picking and stacking machine uses a large-angle picker. The head of the large-angle picker is equipped with symmetrical open bucket-shaped large-angle picking plates. The two large-angle picking plates maintain an angle of 15-40° with the ground. A vertical lifting chain is provided in the middle of the large-angle picker. A corner lifting chain is provided at the corner where the large-angle picker connects to the tilting platform. A horizontal chain is provided at the front end of the tilting platform.

[0009] The sensor unit includes a grass-covered photoelectric switch at the pickup head, a grass-covered photoelectric switch in the middle of the pickup, a low-position proximity switch for the pickup, a grass-covered proximity switch at the platform head, a grass-covered proximity switch in the middle of the platform, a platform first row full of grass proximity switch, a platform full load proximity switch, a front push plate extension proximity switch, a front push plate retraction proximity switch, a low-position proximity switch, a middle-position proximity switch, a high-position proximity switch, a platform support proximity switch, a rear push rod retraction proximity switch, a low-position proximity switch for the collection platform, a high-position proximity switch for the collection platform, and a full load proximity switch for the collection platform. The grass-covered photoelectric switch at the pickup head is located at the head of the large-angle pickup. The grass-covered photoelectric switch in the middle of the pickup and the low-position proximity switch are respectively located in the middle and low parts of the corner of the large-angle pickup. The grass-covered proximity switch at the platform head is located at the first drainage point of the tilting platform. At the flat chain, a grass proximity switch is located in the middle of the horizontal chain of the first row of the tilting platform. A grass-filled proximity switch is located at the tail of the first row of the tilting platform. A full-load proximity switch is located at the root of the tilting platform. A front push plate extension proximity switch and a front push plate retraction proximity switch are located at the extension limit positions of the front push plate pivot. A low-position proximity switch, a middle-position proximity switch, and a high-position proximity switch are located at the low, middle, and high limit positions of the tilting platform pivot. A platform support proximity switch is located at the bottom of the tilting platform. A rear push rod retraction proximity switch is located at the retraction limit position at the root of the rear push rod. A low-position proximity switch, a high-position proximity switch, and a full-load proximity switch for the loading platform are located at the low, high, and full-load limit positions of the loading platform at the root of the rear push rod.

[0010] Furthermore, the execution output unit includes a pickup motor solenoid valve, a front push plate extension and forklift lifting solenoid valve, a platform tilting solenoid valve, a loading platform lifting solenoid valve, a rear push plate extension solenoid valve, a guardrail lifting solenoid valve, and a horizontal motor bypass solenoid valve. The input terminals of these valves are all connected to the digital output port of the logic control unit. The output of the solenoid valve is connected to the pickup lifting motor. The solenoid valves for extending and retracting the front push plate and raising the grass fork are respectively connected to the front push plate cylinder and the grass fork cylinder of the platform push plate. The output of the platform tilting solenoid valve is connected to the hydraulic cylinder of the tilting platform. The output of the loading platform lifting solenoid valve is connected to the hydraulic cylinder of the loading platform. The output of the rear push plate extending solenoid valve is connected to the rear push plate hydraulic cylinder of the platform push plate. The output of the upright rail lifting solenoid valve is connected to the upright rail hydraulic cylinder on the loading platform. The output of the horizontal motor bypass solenoid valve is connected to the motor of the horizontal chain.

[0011] Furthermore, the remote control unit includes an operation panel and a main control board. The operation panel is connected to the main control board via a CAN bus. The operation panel is equipped with an action selection switch, status indicator lights, and an emergency stop button switch for the large-angle square bale picker and palletizer. The action selection switch includes an emergency operation self-reset switch, a loading / bale pressing lifting self-reset switch, an automatic pick-up mode / manual pick-up / manual palletizing mode self-locking selection switch, a rear push rod extension self-reset switch, a support rail lifting self-reset switch, a mode one / mode two self-locking selection switch, a motor forward / reverse switch, an emergency stop button switch, a platform lifting self-reset switch, and a front push plate extension self-reset selection switch.

[0012] Furthermore, it also includes a pressure relay for the tackling fork, a bypass solenoid valve for lifting motor a, and a bypass solenoid valve for lifting motor b. The output end of the pressure relay for the tackling fork is connected to the control input end of the lifting solenoid valve for the tackling fork. The output end of the bypass solenoid valve for lifting motor a is connected to the pickup lifting motor a. The output shaft of lifting motor a is connected to the vertical lifting chain of the pickup. The output end of the bypass solenoid valve for lifting motor b is connected to the pickup lifting motor b. The output shaft of lifting motor b is connected to the angle lifting chain.

[0013] Furthermore, the remote control unit is powered by a 12VDC battery.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) By utilizing sensor units, logic control units, execution output units, and remote control units, manual / automatic remote automatic control of picking up and stacking square bales of straw was realized.

[0016] 2) Operators can remotely operate the pickup machine using a remote control, reducing their workload and improving efficiency;

[0017] 3) The tilt picker can pick up various types of hay bales (two-strand, three-strand, net bag bales, alfalfa bales, straw bales, wheat bales, natural grass bales, and many other common bales), while reducing damage to the binding ropes and maximizing the integrity of the bales, resulting in high picking efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the square hay bale picking and stacking machine described in this utility model.

[0020] Figure 3 This is a schematic diagram of the remote control unit structure described in this utility model.

[0021] Figure 4 This is a schematic diagram showing the positions of the sensor unit and solenoid valve described in this utility model.

[0022] In the diagram: 1. Walking mechanism; 2. Chassis device; 3. Power unit; 4. Large tilt angle pickup; 5. Horizontal chain; 6. Platform push plate; 7. Tilting platform; 8. Vertical lifting chain; 9. Corner lifting chain; 10. Hay-pressing fork; 11. Loading platform; 12. Support railing. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0024] See Figure 1 This is a structural schematic diagram of the present invention. The present invention relates to an electrical system for a large-angle square bale picking and palletizing machine, comprising the square bale picking and palletizing machine, a remote control unit, a logic control unit, a sensor unit, and an execution output unit. The logic control unit is mounted on the square bale picking and palletizing machine. The remote control unit is wired to the logic control unit. The sensor unit is connected to the input port of the logic control unit. The execution output unit is connected to the output port of the logic control unit. The logic control unit employs a PLC control system.

[0025] See Figure 2The square bale picking and stacking machine includes a chassis device 2 and a walking mechanism 1, a large-angle picker 3, a power unit 3, a tilting platform 7, and a collection platform 11 mounted on the chassis device 2. The walking mechanism 1 is located at the bottom of the chassis device 2. The tail end of the large-angle picker 3 is connected to the tilting platform 7. The front end of the tilting platform 7 is provided with a platform push plate 6. The square bale picking and stacking machine uses a large-angle picker 3. The head of the large-angle picker 3 is provided with symmetrical open bucket-shaped large-angle picking plates. The two large-angle picking plates maintain a 30° angle with the ground. The large-angle picker 3 is provided with a vertical lifting chain 8 in the middle. A corner lifting chain 9 is provided at the corner where the large-angle picker 3 connects to the tilting platform 7. A horizontal chain 5 is provided at the front end of the tilting platform 7.

[0026] See Figure 3 The steep-angle square bale picker and palletizer is mounted on the rear of the tractor. The remote control unit is powered by an external DC12V tractor battery, facilitating the operation of the picker and palletizer. The remote control unit includes an operation panel and a main control board. The operation panel is connected to the main control board via a CAN bus. The operation panel is equipped with an action selection switch, status indicator lights, and an emergency stop button switch for the steep-angle square bale picker and palletizer. The action selection switches include an emergency operation self-reset switch, a loading / bale pressing lifting self-reset switch, an automatic picker mode / manual picker / manual palletizing mode self-locking selection switch, a rear push rod extension self-reset switch, a guardrail lifting self-reset switch, a mode one / mode two self-locking selection switch, a motor forward / reverse switch, an emergency stop button switch, a platform lifting self-reset switch, and a front push plate extension self-reset selection switch.

[0027] See Figure 4The sensor unit includes a grass-covered photoelectric switch S1 at the pickup head, a grass-covered photoelectric switch S2 in the middle of the pickup, a low-position proximity switch S3, a grass-covered proximity switch S4 at the head of the platform, a grass-covered proximity switch S5 in the middle of the platform, a platform with a full row of grass proximity switch S6, a platform fully loaded proximity switch S7, a front push plate extended proximity switch S8, a front push plate retracted proximity switch S9, a low-position proximity switch S10, a middle-position proximity switch S11, a high-position proximity switch S12, and a platform support connector. The pickup includes proximity switches S13, S14 (retractable push rod), S15 (low position proximity switch for the loading platform), S16 (high position proximity switch for the loading platform), and S17 (full load proximity switch for the loading platform). A grass photoelectric switch S1 is located at the head of the large-angle pickup 3. A grass photoelectric switch S2 and a low-position proximity switch S3 are located at the middle and lower corners of the large-angle pickup 3, respectively. A grass proximity switch S4 is located at the head of the platform on the first row of horizontal chains of the tilting platform 7. At five locations: a grass proximity switch S5 is located in the middle of the horizontal chain 5 of the first row of the flipping platform 7; a full grass proximity switch S6 is located at the tail of the first row of the flipping platform 7; a full load proximity switch S7 is located at the root of the flipping platform 7; a front push plate extension proximity switch S8 and a front push plate retraction proximity switch S9 are respectively located at the extension limit positions of the front push plate pivot; a low platform proximity switch S10, a middle platform proximity switch S11, and a high platform proximity switch S12 are respectively located at the low, middle, and high limit positions of the flipping platform pivot; a platform support proximity switch S13 is located at the bottom of the flipping platform 7; a rear push rod retraction proximity switch S14 is located at the retraction limit position at the root of the rear push rod; and a low platform proximity switch S15, a high platform proximity switch S16, and a full load platform proximity switch S17 are respectively located at the low, high, and full load limit positions of the platform at the root of the rear push rod. The detection distance of all proximity switches is set to 15mm.

[0028] The execution output unit includes: pickup motor solenoid valves a1 and b1, front push plate extension and forklift lifting solenoid valves a2, b3, Y4, and Y5, platform tilting solenoid valves a4, b4, and Y6, loading platform lifting solenoid valves a5 and b5, rear push plate extension solenoid valves a3 and b3, support rail lifting solenoid valves a6 and b6, and horizontal motor bypass solenoid valve Y3. The input terminals of pickup motor solenoid valves a1 and b1, front push plate extension and forklift lifting solenoid valves a2, b3, Y4, and Y5, platform tilting solenoid valves a4, b4, and Y6, loading platform lifting solenoid valves a5 and b5, rear push plate extension solenoid valves a3 and b3, support rail lifting solenoid valves a6 and b6, and horizontal motor bypass solenoid valve Y3 are all connected to the logic control. The digital output ports of the unit are as follows: the output terminals of the pickup motor solenoid valves a1 and b1 are connected to the pickup lifting motor; the front push plate extension and fork lifting solenoid valves a2, b3, Y4, and Y5 are respectively connected to the front push plate cylinder of the platform push plate 6 and the fork lifting cylinder of the platform push plate 10; the output terminals of the platform tilting solenoid valves a4, b4, and Y6 are connected to the hydraulic cylinder of the tilting platform 7; the output terminals of the loading platform lifting solenoid valves a5 and b5 are connected to the hydraulic cylinder of the loading platform 11; the output terminals of the rear push plate extension solenoid valves a3 and b3 are connected to the rear push plate hydraulic cylinder of the platform push plate 6; the output terminals of the upright support lifting solenoid valves a6 and b6 are connected to the upright support hydraulic cylinder on the loading platform 11; and the output terminal of Y3 is connected to the motor of the horizontal chain 5.

[0029] Near solenoid valves Y4 and Y5, pressure relays SK1 for the grass-pressing fork are installed. A bypass solenoid valve Y1 for the lifting motor a is installed at point 8 on the vertical lifting chain of the pickup to control the independent start and stop of motor a. A bypass solenoid valve Y2 for the lifting motor b is installed at point 8 on the corner chain of the pickup to control the independent start and stop of motor b. A bypass solenoid valve Y3 for the horizontal motor is installed at point 5 on the horizontal chain below the tilting platform 7 to control the independent start and stop of the horizontal motor. Solenoid valves Y4 and Y5 are installed near the full-load proximity switch of the tilting platform to control the switching between the multi-way valve grass-pressing fork 10 and the front push plate cylinder. A solenoid valve Y6 is installed below the loading platform 11 on the right side of the chassis main beam to control the hydraulic locking device for the tilting platform 7 to fall under its own weight. A hydraulic multi-way proportional valve is installed below the loading platform 11 on the side of the chassis, controlled by a logic control unit and an execution output unit for start / stop and opening degree.

[0030] The equipment includes a forklift pressure relay SK1, a bypass solenoid valve Y1 for lifting motor a, and a bypass solenoid valve Y2 for lifting motor b. The output of the forklift pressure relay is connected to the control input of the forklift lifting solenoid valves Y4 and Y5. The output of the bypass solenoid valve a1 for lifting motor a is connected to the pickup lifting motor a. The output shaft of lifting motor a is connected to the pickup vertical lifting chain 8. The output of the bypass solenoid valve b1 for lifting motor b is connected to the pickup lifting motor b. The output shaft of lifting motor b is connected to the angle lifting chain 9.

[0031] Working principle: This system transmits signals to the logic controller through the buttons on the remote control unit and the proximity switches of the sensor unit. The logic controller processes the signals and sends them to the solenoid control valve.

[0032] The remote control unit is the control component for the operation of the entire vehicle. The emergency stop button switch controls the main power supply. When the emergency stop button switch is pressed, the equipment is powered off and the operation stops.

[0033] The remote control unit's status indicator lights include a power indicator, a full-load alarm light, and a communication indicator. When the power indicator light is on, the system is powered normally. When the loading platform 11 is full, the full-load alarm light flashes at a frequency of 0.5 seconds. In automatic mode, if the automatic conditions are not met, the alarm light will flash twice in succession to prompt the operator to manually adjust to the initial state. When the emergency stop button is pressed, the full-load alarm light will remain on. When the communication indicator is on, the power cord of the remote control unit must be connected according to the specifications. The red wire with the fuse and positive terminal markings should be connected to the positive terminal of the 12V battery power supply (marked "+"), and the black wire with the negative terminal markings should be connected to the negative terminal of the 12V battery power supply (marked "-"). This indicates that the operator and controller are connected normally and can work. If the lights are not on, it indicates that the connection is abnormal or that a component is damaged.

[0034] Turn the emergency stop button clockwise to connect the vehicle power supply and start the control system. Check the mode selection joystick to confirm that it is in the "Automatic Pickup Mode" (automatic pickup), "Manual Pickup Mode" (manual pickup), or "Manual Palletizing Mode" (manual palletizing).

[0035] Manual operation mode:

[0036] 1. Motor operation: Manual operation

[0037] In "Manual Pickup" mode, press and hold the motor forward or reverse switch joystick to make the lifting motor and horizontal motor rotate forward or reverse simultaneously. Release the forward or reverse switch joystick to stop the lifting motor and horizontal motor simultaneously. If you quickly flick (press) the motor forward button 3 times within 2 seconds, the motor will rotate forward continuously. When you press the motor forward or reverse button again, the motor will stop rotating.

[0038] 2. Manual extension and retraction of the front push plate:

[0039] In "Manual Pickup" mode, press and hold the joystick of the front push plate extension / reset selector switch. The front push plate will extend towards the platform and stop extending when it reaches the front push plate extension proximity switch S8 position. Move the front push plate to retract. The front push plate will retract in the opposite direction of the platform and stop retracting when it reaches the front push plate retraction proximity switch S9 position. Note the position of the pickup and the flip platform 7 position, and be careful to avoid interference with the front push plate.

[0040] 3. Lifting of the tilting platform 7:

[0041] In "manual pickup" mode, jogging the platform lifting lever will automatically flip the platform 7 upwards. When it rises to the middle position proximity switch S11, the tack fork 10 will automatically lift. When it reaches the high position proximity switch S12, the tack fork 10 will automatically press down to secure the hay bales, at which point the lifting action ends. When in the high position stop state, jogging the platform lowering lever will automatically lower the platform to the low position proximity switch S10. When the platform support rod is raised, the descent changes from automatic to manual slow descent, and the height can be freely adjusted by manually controlling the platform lowering lever.

[0042] 4. Lifting of the loading platform 11:

[0043] In "palletizing manual mode", the lifting and lowering of the palletizing platform 11 can be controlled by moving the lever of the palletizing / pressing lifting self-reset switch. When the palletizing platform 11 is raised, the pressing fork 10 will automatically rise. When the palletizing platform 11 is lowered to the low position proximity switch S15, the pressing fork 10 will automatically press down.

[0044] 5. Rear push rod extension:

[0045] In "palletizing manual mode", when the palletizing platform 11 is in the low position proximity switch S16, the extension and retraction of the rear push rod can be controlled by moving the rear push rod to extend or retract. When the palletizing platform 11 is not in the high position, the rear push rod cannot be moved.

[0046] Description of the automatic bale picking process:

[0047] Mode 1: When picking up 72 bales of hay, select Mode 1. The number of platforms is 3×3, and the last row of bales on the platform needs to be pushed forward by the front pusher.

[0048] Mode 2: Select Mode 2 when picking up 72 or 108 bales of hay, when the number of platforms is 3×3 or 4×3, and the last row of bales on the platform does not need to be pushed by the front pusher.

[0049] The mode must be determined before picking up the item and cannot be switched during the picking process;

[0050] Automatic pickup mode conditions: 1. Front push plate retraction proximity switch S9 is triggered, front push plate retracts to its original position; 2. Pickup device low position proximity switch S3 is triggered, pickup device is in low position; 3. Platform low position proximity switch S10 is triggered, platform 7 flips to low position; 4. Platform support rod is in initial position; 5. Loading platform low position proximity switch S15 is triggered, loading platform is in low position; 6. Rear push rod retraction proximity switch S14 is triggered, rear push rod retracts to its original position; 7. Vertical barrier is raised to the correct position.

[0051] Automatic process: Select the mode to "Automatic Pickup Mode". When the full load alarm produces two consecutive alarm sounds, it means that the "Automatic Pickup Mode Conditions" are not met. Please check the above conditions and manually control it to the target position until the two consecutive alarm sounds stop.

[0052] When entering automatic picking mode, the picking motor a, the corner motor b, and the horizontal motor will automatically move in the picking direction. The head photoelectric detector determines the sorting action when picking up the hay bales and controls the motor operation to prevent hay piling. If hay piling occurs, please check the photoelectric switch.

[0053] When the hay bales enter the first row of the tilting platform 7 via the transfer lifting chain, the presence of hay bales is detected by the hay proximity switch S4 at the front of the tilting platform 7. When the horizontal hay bales are full, the first row full hay proximity switch S6 is triggered, and the horizontal chain 5 of the tilting platform 7 stops rotating. The front push plate pushes the hay bales to the rear of the vehicle to the second row. After pushing, the platform push plate 6 returns to the initial position, waiting for the next row of hay bales. This process continues until the platform reaches the rear and triggers the platform full-load proximity switch S7 (the last row of hay bales remains). In either mode one or mode two, it is determined whether to push the last row of hay bales. In mode one, the last row of hay bales will be pushed. After pushing, the platform will automatically rise and transfer the hay bales on the platform to the collection platform 11. In mode two, the last row of hay bales will not be pushed. When the last row of hay bales is detected to be full, the platform push plate 6 is not triggered, and the platform hay bales are immediately raised and transferred to the collection platform 11.

[0054] When the collection platform 11 is fully loaded, the remote control unit will issue a full load alarm with an audible and visual alarm at a frequency of 0.5Hz. At this time, automatic picking will stop, the operator will be notified, and the motor chain will stop moving.

[0055] During automatic operation, manually pressing the platform push plate 6 will automatically extend the platform push plate 6 to its limit and then retract it to its original position; manually pressing the platform raise button for 3 seconds will automatically raise the flip platform 7 to the high position and then automatically lower it to the low position; when manually pressing the load / crusher raise or lower button, the crusher fork 10 will rise or fall accordingly. This operation is a supplement to manual operation.

[0056] Operation in stacked state:

[0057] When the hay bales on the loading platform 11 are full, the full-load proximity switch S17 is triggered, triggering a full-load alarm. Switch to "Manual Palletizing Mode" to change the status to palletizing mode. Tow the entire vehicle to the stacking area. Press and hold the "Loading / Hawk Press Lift" switch. The loading platform rises and the hay press fork 10 is raised until the loading platform 11 reaches its maximum angle (approximately 100° with the ground) and stops. At this time, press and hold the "Push Rod Extension" switch. The push rod extends. After confirming that the hay bales have been pushed out of the loading platform 11, press and hold the "Push Rod Retraction" switch to retract the push rod to the initial position. After retracting the push rod, press and hold the "Loading / Hawk Press Lower" switch to lower the loading platform 11 back to the initial position. The hay press fork 10 automatically lowers. Press and hold the "Lift" switch to raise the stand 12 to the highest position, which is the working position. Switch the "Palletizing Mode" to "Automatic Pickup Mode".

[0058] The above embodiments are implemented based on the technical solution of this utility model, providing detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments. Unless otherwise specified, the methods used in the following embodiments are conventional methods.

Claims

1. An electrical system for a large-angle square bale picking and palletizing machine, comprising the square bale picking and palletizing machine, a remote control unit, a logic control unit, a sensor unit, and an execution output unit, wherein the logic control unit is disposed on the square bale picking and palletizing machine, the remote control unit is wired to the logic control unit, and the sensor unit and the execution output unit are wired to the logic control unit; Its features are, The square bale picking and stacking machine includes a chassis and a traveling mechanism, a large-angle picker, a power unit, a tilting platform, and a collection platform mounted on the chassis. The traveling mechanism is located at the bottom of the chassis. The tail end of the large-angle picker is connected to the tilting platform, and a platform push plate is set at the front end of the tilting platform. The square bale picking and stacking machine uses a large-angle picker. The head of the large-angle picker is equipped with symmetrical open bucket-shaped large-angle picking plates. The two large-angle picking plates maintain an angle of 15-40° with the ground. A vertical lifting chain is provided in the middle of the large-angle picker. A corner lifting chain is provided at the corner where the large-angle picker connects to the tilting platform. A horizontal chain is provided at the front end of the tilting platform. The sensor unit includes a grass-covered photoelectric switch at the pickup head, a grass-covered photoelectric switch in the middle of the pickup, a low-position proximity switch for the pickup, a grass-covered proximity switch at the platform head, a grass-covered proximity switch in the middle of the platform, a platform first row full of grass proximity switch, a platform full load proximity switch, a front push plate extension proximity switch, a front push plate retraction proximity switch, a low-position proximity switch, a middle-position proximity switch, a high-position proximity switch, a platform support proximity switch, a rear push rod retraction proximity switch, a low-position proximity switch for the collection platform, a high-position proximity switch for the collection platform, and a full load proximity switch for the collection platform. The grass-covered photoelectric switch at the pickup head is located at the head of the large-angle pickup. The grass-covered photoelectric switch in the middle of the pickup and the low-position proximity switch are respectively located in the middle and low parts of the corner of the large-angle pickup. The grass-covered proximity switch at the platform head is located at the first drainage point of the tilting platform. At the flat chain, a grass proximity switch is located in the middle of the horizontal chain of the first row of the tilting platform. A grass-filled proximity switch is located at the tail of the first row of the tilting platform. A full-load proximity switch is located at the root of the tilting platform. A front push plate extension proximity switch and a front push plate retraction proximity switch are located at the extension limit positions of the front push plate pivot. A low-position proximity switch, a middle-position proximity switch, and a high-position proximity switch are located at the low, middle, and high limit positions of the tilting platform pivot. A platform support proximity switch is located at the bottom of the tilting platform. A rear push rod retraction proximity switch is located at the retraction limit position at the root of the rear push rod. A low-position proximity switch, a high-position proximity switch, and a full-load proximity switch for the loading platform are located at the low, high, and full-load limit positions of the loading platform at the root of the rear push rod.

2. The electrical system for a large-angle square bale picking and palletizing machine according to claim 1, characterized in that, The execution output unit includes a pickup motor solenoid valve, a front push plate extension and forklift lifting solenoid valve, a platform tilting solenoid valve, a loading platform lifting solenoid valve, a rear push plate extension solenoid valve, a guardrail lifting solenoid valve, and a horizontal motor bypass solenoid valve. The input terminals of these valves are all connected to the digital output port of the logic control unit. The output of the solenoid valve is connected to the pickup lifting motor. The solenoid valves for extending and retracting the front push plate and raising the grass fork are respectively connected to the front push plate cylinder and the grass fork cylinder of the platform push plate. The output of the platform tilting solenoid valve is connected to the hydraulic cylinder of the tilting platform. The output of the loading platform lifting solenoid valve is connected to the hydraulic cylinder of the loading platform. The output of the rear push plate extending solenoid valve is connected to the rear push plate hydraulic cylinder of the platform push plate. The output of the upright rail lifting solenoid valve is connected to the upright rail hydraulic cylinder on the loading platform. The output of the horizontal motor bypass solenoid valve is connected to the motor of the horizontal chain.

3. The electrical system for a large-angle square bale picking and palletizing machine according to claim 1, characterized in that, The remote control unit includes an operation panel and a main control board. The operation panel is connected to the main control board via a CAN bus. The operation panel is equipped with an action selection switch, status indicator lights, and an emergency stop button switch for the large-angle square bale picker and palletizer. The action selection switch includes an emergency operation self-reset switch, a loading / bale pressing lifting self-reset switch, an automatic pick-up mode / manual pick-up / manual palletizing mode self-locking selection switch, a rear push rod extension self-reset switch, a support rail lifting self-reset switch, a mode one / mode two self-locking selection switch, a motor forward / reverse switch, an emergency stop button switch, a platform lifting self-reset switch, and a front push plate extension self-reset selection switch.

4. The electrical system for a large-angle square bale picking and palletizing machine according to claim 2, characterized in that, It also includes a pressure relay for the tackling fork, a bypass solenoid valve for lifting motor a, and a bypass solenoid valve for lifting motor b. The output end of the pressure relay for the tackling fork is connected to the control input end of the lifting solenoid valve for the tackling fork. The output end of the bypass solenoid valve for lifting motor a is connected to the pickup lifting motor a. The output shaft of lifting motor a is connected to the vertical lifting chain of the pickup. The output end of the bypass solenoid valve for lifting motor b is connected to the pickup lifting motor b. The output shaft of lifting motor b is connected to the angle lifting chain.

5. The electrical system for a large-angle square bale picking and palletizing machine according to claim 1, characterized in that, The remote control unit is powered by a 12VDC battery.

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