A square bale baler real-time monitoring feedback piston connecting rod structure

Abstract

The utility model discloses a square bale baler real -time monitoring feedback piston connecting rod structure, and connecting rod structure includes front mounting panel, rear mounting panel and force arm, and front mounting panel and rear mounting panel are installed respectively at both ends of force arm, and force arm has the hollow chamber that passes through before and after in it, is equipped with tower type sensor and inner ejector rod in the hollow chamber, and tower type sensor installs on front mounting panel, and its inside encapsulation inductive coil, and inner ejector rod installs on rear mounting panel, the sub -cavity of tower type sensor is equipped with spring, connecting rod and permanent magnet that connect in proper order, and spring is close to front mounting panel and sets up, and inner ejector rod extends to the sub -cavity of tower type sensor along the hollow chamber of force arm, and its end portion is in contact with permanent magnet. The utility model discloses through setting tower type sensor in connecting rod structure and gathers the pressure data that is suffered when baling, judges baling quality according to pressure data, and timely discovers that force arm stress deformation problem can develop operation and maintenance work in time, and it is guaranteed to reach the effect of consistent effect of bale density.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a real-time monitoring and feedback piston rod structure and a real-time monitoring and feedback method for a square baler. Background Technology

[0002] Square balers are mainly used in agriculture and are important equipment for compressing materials such as hay and straw into bales for mechanized removal from the field. The bales compressed by square balers with bale density adjustment functions are square in shape, heavy, and dense, making them easy to transport and store.

[0003] The piston connecting rod is a key component of a square baler, used to transmit power from the engine or gearbox to the piston, causing the piston to reciprocate and compress the material. Traditional connecting rod designs are often made of cast iron or carbon steel in one piece, which is simple in structure but bulky and heavy, cannot provide feedback for density adjustment, consumes a lot of energy, and has a low degree of controllability.

[0004] With the development of agricultural technology, modern balers are becoming increasingly automated and intelligent. However, existing linkages are difficult to adapt to the demands of high-power, high-frequency intelligent baling and lack status monitoring interfaces, thus failing to meet the requirements for precise operation and maintenance.

[0005] To address the aforementioned issues, it is urgent to integrate materials science, mechanics, and Internet of Things technologies to drive the evolution of piston connecting rods towards higher efficiency, durability, and intelligence, thereby supporting the high-end development of modern agricultural equipment. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a real-time monitoring and feedback piston rod structure for square baling machines. It has real-time monitoring and feedback of force, temperature and vibration data, which can reduce energy consumption and solve the problem of precise operation and maintenance of the machine.

[0007] The technical solution adopted is as follows:

[0008] On one hand, this utility model provides a real-time monitoring feedback piston rod structure for a square baler, which includes a front mounting plate, a rear mounting plate, and a lever arm. The front mounting plate and the rear mounting plate are respectively installed at both ends of the lever arm. The lever arm has a hollow cavity that runs through it from front to back. A tower sensor and an inner push rod are provided in the hollow cavity. The tower sensor is installed on the front mounting plate and encapsulates an induction coil inside it. One end of the inner push rod is installed on the rear mounting plate. A spring, a connecting rod, and a permanent magnet are sequentially connected in the sub-cavity of the tower sensor. The spring is located close to the front mounting plate. The inner push rod extends along the hollow cavity of the lever arm into the sub-cavity of the tower sensor. The other end of the inner push rod is in contact with the permanent magnet.

[0009] Preferably, the tower sensor includes a tower top, a tower body, and a tower base. The sub-cavity extends through the middle of the tower top, tower body, and tower base. The spring is disposed in the sub-cavity of the tower base. The connecting rod and the permanent magnet are disposed in the sub-cavity of the tower body. The induction coil is encapsulated in the tower body and surrounds the connecting rod and the permanent magnet. The end of the inner top rod extends from the sub-cavity of the tower top to the sub-cavity of the tower body and contacts the permanent magnet.

[0010] Furthermore, a temperature sensor is also encapsulated inside the top of the tower.

[0011] Furthermore, a vibration sensor is also encapsulated inside the tower base.

[0012] Preferably, the inner push rod includes a push rod seat and a push rod. The push rod seat has a mounting hole, and the push rod is a slender shaft structure with one end fixed in the mounting hole and the other end extending into the sub-cavity of the tower sensor.

[0013] Preferably, the push rod and the push rod seat are respectively provided with aligned radial holes, and the push rod and the push rod seat are fixed by connecting the two radial holes in series with a pin.

[0014] More preferably, the lever arm includes two L-shaped lever arm side plates, which are welded opposite to each other.

[0015] More preferably, reinforcing plates are provided on both sides of the front mounting plate and both sides of the rear mounting plate, and the reinforcing plates are attached to both sides of the lever arm.

[0016] On the other hand, this utility model also provides a real-time monitoring and feedback method for a square baler. The square baler employs the aforementioned piston-linkage structure, fixing the front mounting plate of the linkage structure to the piston and connecting the rear mounting plate of the linkage structure to the drive end of the drive device. The drive device controls the reciprocating motion of the piston through the linkage structure, compressing the straw material entering the compression chamber and transmitting the induced electromotive force signal generated in the tower sensor to the control terminal. The control terminal converts the real-time collected induced electromotive force signal into a pressure value and compares it with a set pressure threshold. When the measured pressure value exceeds the set pressure threshold, the control terminal issues an alarm message.

[0017] Furthermore, a temperature sensor and a vibration sensor are encapsulated inside the tower sensor within the linkage structure. The induced electromotive force signal, temperature signal, and vibration signal collected during the reciprocating compression process of the linkage structure are fed back to the control terminal. Pressure threshold, temperature threshold, and vibration threshold are manually input at the control terminal. The control terminal converts the real-time collected pressure signal, temperature signal, and vibration signal into pressure value, temperature value, and vibration value, and compares them with the set pressure threshold, temperature threshold, and vibration threshold. When any value exceeds the set threshold, the control terminal issues an alarm message.

[0018] The technical solution of this utility model has the following advantages:

[0019] A. This utility model features a front mounting plate and a rear mounting plate at both ends of the lever arm, which are connected to the drive device (engine or gearbox) and piston respectively, forming an I-beam lever arm structure. The lever arm has a hollow cavity running through it from front to back. Compared with traditional connecting rods, this utility model has a lighter and stronger structure, reducing energy loss, noise, and vibration, while leaving space for the arrangement of internal sensors and wiring harnesses. This utility model uses a combination of a tower sensor and an inner push rod. One end of the inner push rod is combined with the encapsulated induction coil, spring, connecting rod, and permanent magnet in the tower sensor to collect the induced electromotive force signal generated during the reciprocating compression process. This allows for real-time acquisition of the force on the connecting rod structure during compression. If the provided compression force does not meet the target requirements, an external warning is issued to directly judge the compression effect, promptly detect lever arm deformation problems, and carry out maintenance and adjustment work in a timely manner to ensure consistent bundle density.

[0020] B. This utility model further incorporates a temperature sensor and a vibration sensor within the lever arm to provide feedback on temperature, force, and vibration data during the compression process of the driving piston. It features a compact structure, high output power, and stable performance, meeting the demands of modern, efficient, and intelligent balers. By integrating sensors within the connecting rod structure to detect the working status, it solves the problem of precise machine operation and maintenance, providing a foundation for the automation and intelligent development of balers. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model, the drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the piston connecting rod structure provided by this utility model;

[0023] Figure 2A schematic diagram of the I-beam lever arm structure provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the tower sensor structure provided by this utility model;

[0025] Figure 4 A schematic diagram of the inner push rod structure provided by this utility model;

[0026] Figure 5 A block diagram of the real-time monitoring and feedback method for a square baler provided by this utility model;

[0027] Figure 6 This is a schematic diagram of the front and rear connections of the linkage structure provided by this utility model.

[0028] The symbols provided in the diagram are explained as follows:

[0029] 1-Lever arm; 2-Front mounting plate; 3-Reinforcing plate; 4-Rear mounting plate

[0030] 5-Tower Sensor

[0031] 51-Tower Top

[0032] 52-Tower Body

[0033] 53-Tower Base

[0034] 6-Inner push rod

[0035] 61-Top Rod Seat

[0036] 62-Pin Shaft

[0037] 63-Top Rod

[0038] 7-Permanent magnet; 8-Connecting rod; 9-Spring; 10-Temperature sensor; 20-Vibration sensor

[0039] 30 - Induction coil; 40 - Piston; 50 - Crankshaft

[0040] a- Hollow cavity; b- Sub-cavity. Detailed Implementation

[0041] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] like Figures 1 to 4As shown, this utility model provides a real-time monitoring feedback piston rod structure for a square baler, which includes a front mounting plate 2, a rear mounting plate 4, and a lever arm 1. The front mounting plate 2 and the rear mounting plate 4 are respectively mounted at both ends of the lever arm 1. The lever arm 1 has a hollow cavity a that runs through the front and rear. A tower-type sensor 5 and an inner top rod 6 are installed in the hollow cavity a. The tower-type sensor 5 is mounted on the front mounting plate 2 and encapsulates an induction coil 30 inside it. One end of the inner top rod 6 is mounted on the rear mounting plate 4. The sub-cavity b of the device 5 is equipped with a spring 9, a connecting rod 8, and a permanent magnet 7 connected in sequence. The spring 9 is located near the front mounting plate 2. The inner push rod 6 extends along the hollow cavity a of the lever arm 1 into the sub-cavity b of the tower sensor 5. The other end of the inner push rod 6 contacts the permanent magnet 7. That is, the inner push rod 6 passes through the hollow cavity a of the I-shaped lever arm 1 and extends into the sub-cavity b of the tower sensor 6 to contact the permanent magnet 7. The other end of the permanent magnet 7 contacts the connecting rod 8, and the other end of the connecting rod 8 forms an interference fit with the spring 9. This utility model sets a spring 9, a connecting rod 8, a permanent magnet 7, and an induction coil 30 in the lever arm 1 to sense electromotive force. When the lever arm deforms, the permanent magnet 7 and the induction coil 30 move relative to each other under the action of the spring 9 and the connecting rod 8, thereby generating an induced electromotive force. After processing, it is converted into the pressure experienced by the connecting rod structure during the compression process and output. The change of extrusion pressure during the compression and forming process can be monitored in real time. The compression density of the formed bundle can be obtained through the extrusion pressure data.

[0043] like Figure 3 As shown, the tower sensor 5 includes a tower top 51, a tower body 52, and a tower base 53. A sub-cavity b passes through the middle of the tower top 51, tower body 52, and tower base 53. The tower base 53 is fixedly connected to the front mounting plate 2 by bolts. The spring 9 is located in the sub-cavity of the tower base 53. The connecting rod 8 and the permanent magnet 7 are located in the sub-cavity b of the tower body 52. ​​The induction coil 30 is encapsulated in the tower body 52 and surrounds the connecting rod 8 and the permanent magnet 7. The end of the inner top rod 6 extends into the sub-cavity b at the tower body 52 and contacts the permanent magnet 7.

[0044] As a further preferred embodiment of this utility model, such as Figure 3 As shown, a temperature sensor 10 is also encapsulated inside the tower top 51. The temperature sensor 10 can sense the temperature change when the lever arm 1 deforms, and output it along with the collected deformation mechanical parameters to the control terminal for processing. The control terminal here is preferably a computer or a data processor.

[0045] As a further preferred embodiment of this utility model, a vibration sensor 20 is also encapsulated inside the tower base 53 to collect the vibration signal generated when the lever arm 1 performs reciprocating compression, and output it to the control terminal for processing together with the collected deformation mechanical parameters and temperature parameters.

[0046] This invention also allows for the input of temperature thresholds in the control terminal based on factors such as weather. When the temperature detected by temperature sensor 10 exceeds the set temperature threshold, the control terminal will issue an alarm. The control terminal sets pressure thresholds for tower sensor 5 and vibration thresholds for vibration sensor 20. These thresholds can be within a range. When the detected pressure and vibration values ​​are within the set threshold range, lever arm 1 operates normally. If the obtained vibration value is too high or too low, the control terminal will issue an alarm, reminding the driver to stop and check, but will not intervene in the machine's operation. It is important to note that the collected pressure value is crucial to the baling quality. The force on lever arm 1 is the reaction of piston 40 to the bale force. Excessive pressure will cause the bale density to be too high, leading to blockage of the compression chamber and excessive moisture content, resulting in bale rot. Too low a pressure value will result in low bale density, poor bale shape, affecting sales, and wasting energy and loading space. The target pressure threshold is entered into the control terminal. The pressure value has an upper and lower fluctuation range. An alarm will be triggered if the range is exceeded. The driver can adjust the target pressure threshold, and the hydraulic system will react accordingly. Alternatively, the driver can increase or decrease the vehicle speed to restore the pressure value to normal.

[0047] Because the connecting rod structure is connected to the piston, and the connection point has rotating components such as bearings, abnormal bearing conditions can cause an increase in temperature and vibration, which in turn can transfer heat and vibration to the connecting rod structure. Once the set threshold is exceeded, the control terminal will issue an alarm reminder to stop and perform maintenance.

[0048] In summary, this utility model integrates a temperature sensor 10, an induction coil 30, and a vibration sensor 20 within the tower sensor 5, enabling real-time monitoring and feedback of temperature, force, and vibration data. It features a compact structure, high output power, and stable performance. This utility model meets the needs of modern, efficient, and intelligent balers by integrating sensors within the linkage structure to detect the baler's operating status, solving the problem of precise machine maintenance, and providing a foundation for the automation and intelligent development of balers.

[0049] like Figure 4 As shown, the inner push rod 6 includes a push rod seat 61 and a push rod 63. The push rod seat 61 is provided with a fixing hole and is fixedly connected to the rear mounting plate 4 by bolts. The push rod seat 61 has a mounting hole, and corresponding radial holes are provided at one end of the push rod seat 61 and the push rod 63, respectively. The push rod 63 is inserted into the push rod seat 61. The push rod 63 is a slender shaft structure, and one end of it is fixed in the mounting hole. Preferably, a pin 62 passes through the two radial holes to fix the push rod 63 and the push rod seat 61 together. The other end of the push rod 63 extends into the sub-cavity b of the tower sensor 5 and is combined with the tower sensor b to generate an induced electromotive force signal during the compression of grass materials.

[0050] To better provide installation space for each sensor, such as Figure 2 As shown, the lever arm 1 in this invention includes two L-shaped lever arm side plates, which are welded together opposite each other. The resulting hollow cavity houses the tower sensor 5 and the inner top rod 6. Compared with traditional connecting rods, this structure is lightweight, has higher strength, and reduces energy loss, noise, and vibration. Furthermore, reinforcing plates 3 are provided on both sides of the front mounting plate 2 and both sides of the rear mounting plate 4, respectively. These reinforcing plates 3 are attached to both sides of the lever arm 1, further enhancing its resistance to deformation.

[0051] like Figure 5 and Figure 6 As shown, this utility model also provides a real-time monitoring and feedback method for a square baler. The two ends of the connecting rod structure are respectively connected to the crank 50 on the drive device (engine or gearbox) and the piston 40 of the compression mechanism, both connected by connecting pins. The specific process of driving the piston to perform reciprocating compression includes the following steps:

[0052]

S01

[0053]

S02

[0054]

S03

[0055]

S04

[0056]

S05

[0057]

S06

S04

S05

[0058] The drive unit controls the reciprocating motion of the piston through a linkage structure, compressing the straw material entering the compression chamber and transmitting the induced electromotive force signal generated in the tower sensor to the control terminal. The control terminal converts the real-time collected induced electromotive force signal into a pressure value and compares it with the set pressure threshold. When the measured pressure value exceeds the set pressure threshold, the control terminal issues an alarm message. The staff can promptly detect the pressure changes during the baling process and visualize the force changes experienced by the linkage structure in driving the piston to perform compression. This allows them to obtain the density of each straw material bale and maintain a consistent bale density, facilitating subsequent storage and transportation.

[0059] As a further preferred embodiment of this utility model, a temperature sensor and a vibration sensor are encapsulated inside the lever arm of the linkage structure. Driven by the drive device and the linkage structure, the piston reciprocates within the compression chamber, compacting the straw to prevent it from rebounding. It also continuously feeds back force, temperature, and vibration signals to the control terminal, monitoring the pressure, temperature, and vibration conditions of the piston-linkage structure in real time. The driver manually inputs pressure, temperature, and vibration thresholds at the control terminal. The control terminal converts the real-time collected pressure, temperature, and vibration signals into pressure, temperature, and vibration values, and compares them with the set thresholds. When any value exceeds the set threshold, the control terminal issues an alarm, allowing staff to detect the anomaly and perform targeted maintenance.

[0060] Any aspects not covered in this utility model are applicable to the prior art.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A real-time monitoring and feedback piston linkage structure for a square baler, comprising a front mounting plate, a rear mounting plate, and a lever arm, wherein the front mounting plate and the rear mounting plate are respectively mounted at both ends of the lever arm, characterized in that, The lever arm has a hollow cavity running through it from front to back. A tower sensor and an inner push rod are installed inside the hollow cavity. The tower sensor is mounted on the front mounting plate and encapsulates an induction coil inside it. One end of the inner push rod is mounted on the rear mounting plate. A spring, a connecting rod, and a permanent magnet are sequentially connected inside the sub-cavity of the tower sensor. The spring is positioned close to the front mounting plate. The inner push rod extends along the hollow cavity of the lever arm into the sub-cavity of the tower sensor, and the other end of the inner push rod contacts the permanent magnet.

2. The real-time monitoring feedback piston rod structure of the square baler according to claim 1, characterized in that, The tower sensor includes a tower top, a tower body, and a tower base. The sub-cavity extends through the middle of the tower top, tower body, and tower base. The spring is disposed in the sub-cavity of the tower base. The connecting rod and permanent magnet are disposed in the sub-cavity of the tower body. The induction coil is encapsulated in the tower body and surrounds the connecting rod and permanent magnet. The end of the inner top rod extends from the sub-cavity of the tower top to the sub-cavity of the tower body and contacts the permanent magnet.

3. The real-time monitoring feedback piston rod structure of the square baler according to claim 2, characterized in that, A temperature sensor is also encapsulated inside the top of the tower.

4. The real-time monitoring feedback piston rod structure of the square baler according to claim 2 or 3, characterized in that, The tower base is also encapsulated with vibration sensors.

5. The real-time monitoring feedback piston rod structure for the square baler according to any one of claims 1-4, characterized in that, The inner push rod includes a push rod seat and a push rod. The push rod seat has a mounting hole. The push rod is a slender shaft structure, with one end fixed in the mounting hole and the other end extending into the sub-cavity of the tower sensor.

6. The real-time monitoring feedback piston rod structure of the square baler according to claim 5, characterized in that, The push rod and the push rod seat are respectively provided with aligned radial holes, and the two radial holes are connected in series by a pin to fix the push rod and the push rod seat.

7. The real-time monitoring feedback piston rod structure of the square baler according to claim 1, characterized in that, The lever arm includes two L-shaped lever arm side plates, which are welded opposite each other.

8. The real-time monitoring feedback piston rod structure of the square baler according to claim 1, characterized in that, The front mounting plate and the rear mounting plate are respectively provided with reinforcing plates on both sides, and the reinforcing plates are attached to the two sides of the lever arm.

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