A round baler control system

Abstract

The application discloses a round bale press control system, and belongs to the technical field of agricultural equipment. The round bale press control system comprises a clutch, which is installed on a frame structure and is used for controlling the on-off of power input of a net winding roller body; a first sensor, which is installed on the frame structure and is used for acquiring volume data of a grass bale; a second sensor, which is installed on the frame structure and is used for acquiring position data of a cutting tool; a third sensor, which is installed on a bin structure and is used for acquiring opening and closing states of the bin structure; and a controller, which is installed on the frame structure and is connected to the clutch, the first sensor, the second sensor and the third sensor. The automatic control of the round bale press can be realized by configuring three sensors in cooperation with the clutch, the control logic is simple, the control components involved are less, the stability can be maintained when the grass bale is continuously impacted by a load during the net winding, the logic is clear, and the anti-interference capability is high.

Description

Technical Field

[0001] This application belongs to the field of agricultural equipment technology, specifically relating to a control system for a round baler. Background Technology

[0002] Round balers are widely used in agriculture and horticulture to bale crop stalks, hay, and other materials into cylindrical shapes for easy transportation and storage. With the development of agricultural mechanization, the efficiency and automation level of round balers have become crucial. However, due to the harsh working environment of round balers, such as the bumpy ride caused by continuous overpasses in the field, as well as various physical interferences, the baling logic of existing round balers on the market is chaotic. Depending on the different baling control logics, the anti-interference ability of each system is weak, often resulting in unexpected crashes, failure to transmit baling signals, and inaccurate baling counts during the baling process. Utility Model Content

[0003] The purpose of this application is to provide a control system for a round baler to solve the problems of disordered logic and weak anti-interference ability of existing round baler control systems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a control system for a round baler, the round baler comprising a frame structure, a storage compartment structure, and a wrapping structure, the wrapping structure comprising wrapping rollers and cutting blades, and the control system comprising:

[0005] The clutch is mounted on the frame structure and is used to control the on / off state of the power input to the winding roller.

[0006] The first sensor is mounted on the frame structure and is used to acquire data on the volume of the hay bales.

[0007] The second sensor is mounted on the frame structure and is used to acquire the position data of the cutting tool;

[0008] The third sensor is installed on the silo structure and is used to obtain the opening and closing status of the silo structure.

[0009] The controller is mounted on the frame structure and connected to the clutch, the first sensor, the second sensor, and the third sensor.

[0010] Furthermore, the second sensor is a switch sensor.

[0011] Furthermore, the second sensor is a limit switch or a proximity switch.

[0012] Furthermore, the third sensor is a displacement sensor.

[0013] Furthermore, there are two third sensors, which are independently located in the left and right rear compartments of the compartment structure.

[0014] Furthermore, the winding structure also includes an opening and closing signal plate, and the second sensor obtains the position data of the cutting tool by detecting the position of the opening and closing signal plate.

[0015] Furthermore, the control system also includes a display terminal, which is installed in the drive device connected to the round baler and connected to the controller. The display terminal is used to display pressure data and / or action prompts during the operation of the round baler.

[0016] Furthermore, the control system also includes a warning light located on the drive device connected to the round baler and connected to the controller.

[0017] Furthermore, the first sensor is a distance sensor.

[0018] Furthermore, the first sensor is a radar distance sensor.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] The round baler control system proposed in this application can achieve automatic control of the round baler with only three sensors, a clutch, and a controller. The control logic is simple and involves few control components. It can remain stable when subjected to continuous impact loads after the bale is wrapped with netting. The logic is clear and the anti-interference ability is strong. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the round baler.

[0022] Figure 2 for Figure 1 Enlarged view of a portion of the image;

[0023] Figure 3 This is a schematic diagram of a web-like structure.

[0024] Figure 4 This is the control flowchart for the round baler.

[0025] In the picture:

[0026] 1. Net structure;

[0027] 10. Wire wrapping structure; 100. First support plate; 101. Second support plate; 102. Opening / closing signal plate; 103. Wire wrapping roller assembly; 104. Wire wrapping roller body; 105. Wire cutting knife holder; 106. Connecting rod; 107. Cutting knife; 108. Tension spring; 109. Wire cutting lock hook;

[0028] 20. Frame structure;

[0029] 30. Warehouse structure; 300. Front warehouse; 301. Rear warehouse; 302. Right rear warehouse;

[0030] 40. First sensor; 41. Second sensor; 43. Third sensor; 44. Clutch; 45. Controller; 46. Display terminal; 47. Warning light. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] A round baler control system (hereinafter referred to as the control system) is used to control the actions of the round baler, as described above. Figure 1 This is a schematic diagram of the overall structure of a round baler. The main body of the round baler consists of a frame structure 20, a bin structure 30, and a wrapping net structure 10.

[0033] In some embodiments, refer to Figure 3 The main body of the aforementioned netting structure 10 is composed of a support component and a netting component. The support structure serves as the mounting carrier for the other components (such as the netting component) in the netting structure 10. Specifically, the aforementioned support component includes a first support plate 100 and a second support plate 101 spaced apart in the width direction of the net body 1. Both the first support plate 100 and the second support plate 101 extend along the height direction and the conveying direction of the net body 1.

[0034] In some embodiments, the above-mentioned winding assembly includes a wire roller component 103 and a winding roller body 104 arranged sequentially along the conveying direction of the wire mesh 1. Both the wire roller component 103 and the winding roller body 104 are rotatably mounted on the support assembly. That is, both ends of the wire roller component 103 and the winding roller body 104 are rotatably mounted on the first support plate 100 and the second support plate 101, respectively. In other words, the wire roller component 103 is configured to rotate around its own axis, and multiple layers of wire mesh 1 are wound on the wire roller component 103. The winding and unwinding of the wire mesh 1 are realized based on the rotation of the wire roller component 103.

[0035] Reference Figure 3The aforementioned web winding assembly also includes a connecting rod 106 and a web cutting knife holder 105. The connecting rod 106 extends along the width direction of the web body 1, and its two ends are rotatably mounted on the first support plate 100 and the second support plate 101, respectively. The web cutting knife holder 105 is mounted on the connecting rod 106 and includes a cutting knife 107 extending along the width direction of the web body 1. The web cutting knife holder 105 is configured to switch between a first position and a second position as the connecting rod 106 rotates. In the first position, the cutting knife 107 separates from the web body 1 and is wound around the web roller component 103. The net body 1 is conveyed to the round bundler via the wrapping roller 104. In the second position, the cutting blade 107 contacts the net body 1 to cut it. In some embodiments, the switching between the first and second positions of the net cutting blade 105 is achieved by the coordinated action of the tension spring 108 and the net cutting hook 109. Specifically, in the first position, the net cutting hook 109 hooks the net cutting blade 105 to keep it in the first position. When the net cutting hook 109 disengages, the net cutting blade 105 moves to the second position under the action of the tension spring 108 and cuts the net body 1 by the cutting blade 107.

[0036] Reference Figure 3 The aforementioned netting structure 10 also includes an opening and closing signal plate 102, which is configured to move under the action of an external force (e.g., force applied through a linkage structure). The net-cutting knife holder 105 is in the second position. After the cutting knife 107 cuts the net body 1, the netting operation ends. Under the action of the external force, the opening and closing signal plate 102 drives the net-cutting knife holder 105 to reset (i.e., move from the second position to the first position).

[0037] Continue to refer to Figure 1 and combined Figure 2 The aforementioned bin structure 30 is installed at the output end of the frame structure 20 (i.e., the discharge end of the round baler), and the bin structure 30 defines a winding zone for the bales. Correspondingly, the aforementioned netting structure 10 is located at the top of the frame structure 20 and is configured to input the netting 1 into the winding zone within the bin structure 30. During the operation of the round baler, as the round bales move forward, the grass (or straw) on the ground is shredded and enters the winding zone to form cylindrical bales. After the bale volume reaches a set value (i.e., the bale expansion pressure), the bale continues to expand. After the force reaches the set value, the winding structure 10 moves to input the net body 1 into the winding area, and the net is wound in conjunction with the rotation of the hay bale. After the net is wound, the bin structure 30 opens to output the packaged hay bale. Specifically, in some embodiments, the bin structure 30 includes a front bin 300, a left rear bin (not shown), a right rear bin 302, and a rear bin 301. The left rear bin 301, the right rear bin 302, and the rear bin 301 are an integral structure and can move synchronously to open and close the bin structure 30.

[0038] Corresponding to the structure of the round baler, refer to Figure 1 The aforementioned control system mainly consists of multiple sensors and a controller 45. Sensors collect status information (e.g., bale volume data) during the operation of the round baler. The controller 45 controls the actions of the round baler based on the data collected by the sensors. In some embodiments, the control system includes a clutch 44 mounted on the frame structure 20. Based on this clutch 44, the power input to the winding roller 104 can be controlled. Specifically, when the clutch 44 is engaged, the clutch rotates together with the shaft, and the rotational driving force is transmitted to the winding roller 104 through a transmission belt or other structure to drive the winding roller 104 to move, thereby driving the net 1 on the winding roller 104 to be conveyed into the winding section and contact the bale. After the net 1 contacts the bale, the clutch 44 disengages. With the help of the connection of the net 1, the winding roller 104 can rotate with the bale for subsequent winding. The control system also includes a first sensor 40 and a second sensor 41 mounted on the frame structure 20, wherein the first sensor 40 is used to obtain... The volume data of the hay bale is obtained. Specifically, as the hay bale gradually expands, its volume gradually increases, and the distance between the first sensor and the outer surface of the hay bale gradually decreases. At the same time, as the volume of the hay bale changes, the pressure in the winding section also changes (the pressure change and the hay bale volume change are synchronized). For example, the first sensor 40 is a distance sensor (e.g., a radar distance sensor) and is installed at the front compartment 300 of the compartment structure 30. Correspondingly, the second sensor 41 is used to obtain the position data of the cutting blade 107. For example, the second sensor 41 is a switch sensor. The switch sensor can send signals when the cutting blade 107 moves to the cutting position (i.e., the second position mentioned above) and when it leaves the cutting position to realize the position detection of the cutting blade 107, that is, to obtain the position data of the cutting blade 107. In some embodiments, the second sensor 41 obtains the position data of the cutting blade 107 by detecting the position of the opening and closing signal plate 102. In some embodiments, the second sensor 41 is a limit switch or a proximity switch.

[0039] Reference Figure 2The control system also includes a third sensor 43 installed on the hopper structure 30. Based on the third sensor 43, the opening and closing state of the hopper structure 30 can be obtained. In some embodiments, the third sensor 43 is a displacement sensor, and two sensors are provided. The two displacement sensors are respectively set at the left rear hopper and right rear hopper 302 positions in the hopper structure 30. During the opening or closing process of the hopper structure 30, the left rear hopper or right rear hopper 302 moves. At this time, the movement information of the left rear hopper and right rear hopper 302 can be obtained through the displacement sensor, that is, the opening and closing state of the hopper structure 30 can be obtained. Specifically, when the displacement sensor data is 0, it means that the left rear hopper or right rear hopper 302 has not moved, that is, the hopper structure 30 is in the closed state. When the displacement sensor data reaches the maximum value, it means that the left rear hopper or right rear hopper 302 has moved to the maximum, and at this time the hopper structure 30 is in the fully open state.

[0040] In some embodiments, the control system further includes a display terminal 46, which is disposed in a drive device (e.g., a tractor) connected to the round baler and is used to display the volume data (or pressure data) of the bales and / or action prompt information. For example, the action prompt information may include opening prompts and / or netting operation prompts. In some embodiments, the operator may also set control system parameters (e.g., opening pressure) based on the display terminal 46.

[0041] In some embodiments, the control system further includes a warning light 47 disposed on a drive device (e.g., a tractor) connected to the round baler. The warning light 47 is configured to issue an alarm signal based on volume data (i.e., pressure data within the winding zone) from the first sensor 40. The alarm signal is triggered when the bale volume data reaches a set value (i.e., the pressure within the winding zone reaches a set value) to prompt the operator to perform the operation. In some examples, the warning light 47 and the display terminal 46 are mounted in the same location.

[0042] Specifically, refer to Figure 4 The operating procedure of the above-mentioned round baler is as follows:

[0043] During the operation of the round baler, the straw is cut and enters the baler through the input end, where it is wound into bales. As the amount of straw inside the baler increases, the bales gradually expand. A distance sensor continuously monitors the volume of the bales. Simultaneously, the pressure in the winding zone increases with the expansion of the bales. When the internal pressure reaches the opening pressure, a warning light 47 flashes, and a display terminal 46 provides a notification. The controller 45 then stops the baler and initiates the netting operation. At the start of netting, the controller 45 engages the clutch 44, transmitting power from the bales to the netting roller 104, causing it to rotate. The netting 1 moves with the rotating roller 104 to the netting position inside the baler. Once the netting 1 reaches the netting position, the clutch 44 disengages (e.g., a 2-second disengagement time can be set, meaning the clutch 44 automatically disengages after 2 seconds of engagement). Through its connection with the netting 1, the netting roller 104 continues to rotate with the bales, thus achieving... The net body 1 is continuously conveyed and the net winding action is completed. At the same time as the net winding roller 104 rotates, the net breaking hook 109 is activated and releases the limit on the net breaking knife holder 105 after reaching the set position. The cutting knife 107 moves to the cutting position under the action of the tension spring 108. At this time, the display terminal 46 prompts to open the bin. Correspondingly, the switch sensor receives the signal and feeds it back to the controller 45. The controller 45 controls the bin structure 30 to open. After the bin structure 30 is opened, the bales fall out under the combined action of inertia and gravity, completing the bales baling process. At the same time, during the opening of the bin structure 30, the displacement sensor outputs a displacement signal to the controller 45. After baling is completed, the controller 45 controls the opening and closing signal plate 102 to reset (i.e., the switch sensor loses the signal) and the bin structure 30 to close again (i.e., the displacement sensor resets). Correspondingly, the controller 45 increments the count by 1, and the warning light 47 stops flashing and the display terminal 46 displays that the pressure is 0.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A round baler control system, characterized by, The round baler includes a frame structure (20), a bin structure (30), and a wrapping structure (10). The wrapping structure (10) includes a wrapping roller (104) and a cutting blade (107). The control system includes: The clutch (44) is mounted on the frame structure (20) and is used to control the on / off of the power input to the winding roller (104); The first sensor (40) is mounted on the frame structure (20) and is used to acquire data on the volume of the hay bales; The second sensor (41) is mounted on the frame structure (20) and is used to acquire the position data of the cutting tool (107); The third sensor (43) is installed on the silo structure (30) and is used to obtain the opening and closing status of the silo structure (30); The controller (45) is mounted on the frame structure (20) and connected to the clutch (44), the first sensor (40), the second sensor (41) and the third sensor (43).

2. A round baler control system according to claim 1, characterised in that: The second sensor (41) is a switch sensor.

3. The control system for a round baler according to claim 1, characterized in that: The second sensor (41) is a limit switch or a proximity switch.

4. The control system for a round baler according to claim 1, characterized in that: The third sensor (43) is a displacement sensor.

5. A control system for a round baler according to claim 4, characterized in that: The third sensor (43) is provided in two parts, and the two third sensors (43) are independently set in the left rear compartment and the right rear compartment (302) of the compartment structure (30).

6. The control system for a round baler according to claim 1, characterized in that: The winding structure (10) also includes an opening and closing signal plate (102), and the second sensor (41) obtains the position data of the cutting tool (107) by detecting the position of the opening and closing signal plate (102).

7. The control system for a round baler according to claim 1, characterized in that: The control system also includes a display terminal (46), which is located in the drive device connected to the round baler and connected to the controller (45). The display terminal (46) is used to display pressure data and / or action prompts during the operation of the round baler.

8. The control system for a round baler according to claim 1, characterized in that: The control system also includes a warning light (47) located on a drive device connected to the round baler and connected to the controller (45).

9. A control system for a round baler according to claim 1, characterized in that: The first sensor (40) is a distance sensor.

10. A control system for a round baler according to claim 1, characterized in that: The first sensor (40) is a radar distance sensor.

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