Square bundle press-baler real-time monitoring feedback piston connecting rod structure and square bundle press-baler real-time monitoring feedback method

Abstract

The invention discloses a square bundle press-baler real-time monitoring feedback piston connecting rod structure and a square bundle press-baler real-time monitoring feedback method.The connecting rod structure comprises a front mounting plate, a rear mounting plate and a force arm, the front mounting plate and the rear mounting plate are mounted at the two ends of the force arm correspondingly, and a hollow cavity penetrating front and back is formed in the force arm; a tower-type sensor and an inner ejector rod are arranged in the hollow cavity, the tower-type sensor is mounted on the front mounting plate, an induction coil is packaged in the tower-type sensor, and the inner ejector rod is mounted on the rear mounting plate; a spring, a connecting rod and a permanent magnet which are connected in sequence are arranged in the sub-cavity of the tower type sensor, the spring is arranged close to the front mounting plate, the inner ejector rod extends into the sub-cavity of the tower type sensor along the hollow cavity of the force arm, and the end part of the inner ejector rod is in contact with the permanent magnet. The tower type sensor arranged in the connecting rod structure is used for collecting pressure data during baling, the baling quality is judged according to the pressure data, the stress deformation problem of a force arm is found in time, operation and maintenance work can be carried out in time, and the effect that the baling density is consistent is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and specifically relates to a real-time monitoring and feedback piston connecting rod structure for a square bale baler and a real-time monitoring and feedback method for a square bale baler. Background Art

[0002] Square bale balers are mainly used in agriculture and are important equipment for compressing materials such as forage and straw into bales to achieve mechanized field leaving. The bales compressed by a square bale baler with a bale density adjustment function have a square shape, high weight, and high density, which are convenient for transportation and storage.

[0003] The piston connecting rod is a key component of a square bale baler, which is used to transfer power from the engine or gearbox to the piston, making the piston reciprocate to achieve the compression and forming of materials. Traditional connecting rod designs often use integral casting or forging of cast iron or carbon steel. The structure is simple but bulky and heavy, unable to provide feedback for the density adjustment function, with high energy consumption during operation and low controllability.

[0004] With the development of agricultural technology, modern balers tend to be automated and intelligent. However, existing connecting rods are difficult to adapt to the intelligent baling requirements of high power and high frequency, and lack state monitoring interfaces, unable to meet the requirements of precise operation and maintenance.

[0005] To address the above problems, it is urgent to integrate materials science, mechanics, and Internet of Things technology to promote the evolution of piston connecting rods towards high efficiency, durability, and intelligence to support the high-end development of modern agricultural equipment. Summary of the Invention

[0006] To solve the problems existing in the prior art, the present invention provides a real-time monitoring and feedback piston connecting rod structure for a square bale baler, which can monitor and feedback force, temperature, and vibration data in real time, 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 the one hand, the present invention provides a real-time monitoring and feedback piston connecting rod structure for a square bale baler, which includes a front mounting plate, a rear mounting plate, and a force arm. The front mounting plate and the rear mounting plate are respectively installed at both ends of the force arm. Characteristically, the force arm has a hollow cavity that runs through from front to back. A tower sensor and an inner ejector rod are arranged in the hollow cavity. The tower sensor is installed on the front mounting plate, and an induction coil is encapsulated inside it. One end of the inner ejector 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 arranged close to the front mounting plate. The inner ejector rod extends along the hollow cavity of the force arm into the sub-cavity of the tower sensor, and the other end of the inner ejector rod contacts the permanent magnet.

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

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

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

[0012] Preferably, the inner ejector rod includes an ejector rod seat and an ejector rod. The ejector rod seat has an installation hole. The ejector rod is of a slender shaft structure, and one end of it is placed and fixed in the installation hole. The other end of the ejector rod extends into the sub-cavity of the tower sensor.

[0013] Preferably, the ejector rod and the ejector rod seat are respectively provided with aligned radial holes. The ejector rod and the ejector rod seat are fixed by threading a pin through the two radial holes.

[0014] More preferably, the force arm includes two L-shaped force arm side plates, and the two L-shaped force arm side plates are welded oppositely.

[0015] More preferably, reinforcing plates are respectively 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 side surfaces of the force arm.

[0016] On the other hand, the present invention also provides a real-time monitoring and feedback method for a square bale baler. In the square bale baler, the above piston connecting rod structure is adopted. The front mounting plate of the connecting rod structure is fixedly connected to the piston, and the rear mounting plate of the connecting rod structure is connected to the driving end of the driving device. The driving device controls the piston to reciprocate through the connecting rod structure, compresses the grass materials entering the compression chamber, and transmits 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 sends out an alarm message externally.

[0017] Further, a temperature sensor and a vibration sensor are encapsulated inside the tower sensor in the connecting rod structure, and the induced electromotive force signal, temperature signal, and vibration signal collected during the reciprocating compression process of the connecting rod structure are fed back to the control terminal together; pressure thresholds, temperature thresholds, and vibration thresholds are manually input at the control terminal; the control terminal converts the pressure signal, temperature signal, and vibration signal collected in real time into pressure values, temperature values, and vibration values, and compares them with the set pressure threshold, temperature threshold, and vibration threshold. When one of the values exceeds the set threshold, the control terminal sends out an alarm message externally.

[0018] The technical solution of the present invention has the following advantages:

[0019] A. The present invention respectively sets a front mounting plate and a rear mounting plate at both ends of the lever arm, which are respectively connected to the driving device (engine or gearbox) and the piston to form an I-shaped lever arm structure. The lever arm has a hollow cavity that runs through the front and back. Compared with the traditional connecting rod, the structure of the present invention is lighter, has higher strength, reduces energy loss, noise, and vibration, and at the same time leaves space for the arrangement of internal sensors and wiring harnesses; the present invention combines a tower sensor with 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, and thus can obtain the force condition of the connecting rod structure during the compression process in real time. If the provided compression force does not meet the target requirements, the compression effect can be directly judged through external early warning, the problem of force arm deformation due to force can be discovered in time, and the operation and maintenance and adjustment work can be carried out in time to ensure the consistency effect of the bale density.

[0020] B. The present invention further sets a temperature sensor and a vibration sensor in the lever arm to feedback the temperature, force, and vibration data during the process of driving the piston to compress together. The structure is compact, the output power is large, and the performance is stable, meeting the requirements of modern high-efficiency intelligent balers. By integrating sensors inside the connecting rod structure to detect the working state, the problem of precise operation and maintenance of the machine tool is solved, providing a basis for the development of balers towards automation and intelligence. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the specific embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 Schematic diagram of the piston connecting rod structure provided by the present invention;

[0023] Figure 2 Schematic diagram of the I-shaped lever arm structure provided by the present invention;

[0024] Figure 3 Schematic diagram of the tower sensor structure provided by the present invention;

[0025] Figure 4 Schematic diagram of the internal ejector rod structure provided by the present invention;

[0026] Figure 5 Block diagram of the real-time monitoring and feedback method for the square bale baler provided by the present invention;

[0027] Figure 6 Schematic diagram of the front and rear connection of the connecting rod structure provided by the present invention.

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

[0029] 1 - force 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 - internal ejector rod

[0035] 61 - ejector rod seat

[0036] 62 - pin shaft

[0037] 63 - ejector rod

[0038] 7 - permanent magnet; 8 - connecting rod; 9 - spring; 10 - temperature sensor; 20 - vibration sensor

[0039] 30 - induction coil; 40 - piston; 50 - crank

[0040] a - hollow cavity; b - sub - cavity. Detailed implementation manners

[0041] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] As Figures 1 to 4As shown in the figure, the present invention provides a real-time monitoring and feedback piston connecting rod structure for a square bale baler, which includes a front mounting plate 2, a rear mounting plate 4 and a force arm 1. The front mounting plate 2 and the rear mounting plate 4 are respectively installed at both ends of the force arm 1. There is a hollow cavity a that runs through from front to back inside the force arm 1. A tower sensor 5 and an inner ejector rod 6 are arranged inside the hollow cavity a. The tower sensor 5 is installed on the front mounting plate 2, and an induction coil 30 is encapsulated inside it. One end of the inner ejector rod 6 is installed on the rear mounting plate 4; inside the sub-cavity b of the tower sensor 5, there are a spring 9, a connecting rod 8 and a permanent magnet 7 connected in sequence. The spring 9 is arranged close to the front mounting plate 2. The inner ejector rod 6 extends along the hollow cavity a of the force arm 1 into the sub-cavity b of the tower sensor 5, and the other end of the inner ejector rod 6 contacts the permanent magnet 7, that is, the inner ejector rod 6 passes through the hollow cavity a of the I-shaped force 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 connection with the spring 9. By arranging the spring 9, the connecting rod 8, the permanent magnet 7 and the induction coil 30 that can sense the electric potential in the force arm 1 in the present invention, when the force arm deforms, under the action of the spring 9 and the connecting rod 8, the permanent magnet 7 and the induction coil 30 move relative to each other, thereby generating an induced electric potential, which is processed and then converted into the pressure received by the connecting rod structure during this compression process and output, so that the change of the extrusion force during the bale forming process can be monitored in real time. The bale density of the formed bale can be known through the extrusion force data.

[0043] As Figure 3 shown, the tower sensor 5 includes a tower top 51, a tower body 52 and a tower base 53. The sub-cavity b runs through the middle parts of the tower top 51, the tower body 52 and the tower base 53. The tower base 53 is fixedly connected to the front mounting plate 2 by bolts. The spring 9 therein 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, and 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 ejector 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 the present invention, as Figure 3 shown, a temperature sensor 10 is also encapsulated inside the tower top 51. The temperature sensor 10 can sense the temperature change when the force arm 1 deforms and output it to the control terminal for processing together with the collected deformation mechanical parameters. The control terminal here is preferably a computer or a data processor.

[0045] As a further preferred embodiment of the present invention, a vibration sensor 20 is also encapsulated inside the tower base 53 to collect the vibration signal generated when the force 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] The present invention can also input a temperature threshold in the control terminal according to factors such as weather. When the temperature detected by the temperature sensor 10 exceeds the set temperature threshold, the control terminal will issue an alarm externally. Set the pressure threshold of the tower sensor 5 and the vibration threshold of the vibration sensor 20 in the control terminal. Here, the vibration threshold and the pressure threshold can be a numerical range. When the detected pressure and vibration values are within the set threshold range, the lever 1 is in a normal working state. When the obtained vibration value is too high or too low, the control terminal will generate an alarm to remind the driver to stop and check, but will not interfere with the operation of the machine. It should be noted that the collected pressure value is related to the quality of baling and forming. The force on the lever 1 is the reaction of the force of the piston 40 on the bale. An excessively high pressure value will cause the bale density to be too high, resulting in blockage of the compression chamber and bale decay caused by too high moisture content of the bale. An excessively low pressure value will make the bale density too low, affecting the sale due to poor bale shape, wasting energy and loading space. Input the target pressure threshold in the control terminal. The pressure value has an upper and lower fluctuation range. After exceeding the range, an alarm will be issued. The driver can adjust the target pressure threshold, and the hydraulic system will respond, or the driver can increase or decrease the vehicle speed to make the pressure value return to normal.

[0047] Since the connecting rod structure is connected to the piston and there are rotary components such as bearings at the connection, abnormal bearings will cause an increase in temperature and vibration, and further conduct heat and vibration to the connecting rod structure. Once the set threshold is exceeded, the control terminal will issue an alarm reminder for parking and maintenance.

[0048] In summary, the present invention integrates a temperature sensor 10, an induction coil 30, and a vibration sensor 20 inside the tower sensor 5, which can monitor and feedback temperature, force, and vibration data in real time. It has a compact structure, large output power, and stable performance. The present invention meets the requirements of modern high-efficiency intelligent balers. By integrating sensors inside the connecting rod structure to detect the working state of the baler, it solves the problem of precise operation and maintenance of the machine, providing a basis for the development of balers towards automation and intelligence.

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

[0050] To better provide installation space for each sensor, asFigure 2 As shown in the figure, the lever arm 1 in the present invention includes two L-shaped lever arm side plates, and the two L-shaped lever arm side plates are welded oppositely. The formed hollow cavity places the tower sensor 5 and the inner ejector rod 6 in the hollow cavity. Compared with the traditional connecting rod, the structure is lighter and has higher strength, reducing energy loss, noise and vibration. In addition, reinforcing plates 3 are respectively arranged on both sides of the front mounting plate 2 and both sides of the rear mounting plate 4. The reinforcing plates 3 are attached to both side surfaces of the lever arm 1 to further enhance the anti-deformation ability of the lever arm 1.

[0051] As Figure 5 and Figure 6 shown in the figure, the present invention also provides a real-time monitoring and feedback method for a square bale baler. The two ends of the connecting rod structure are respectively connected to the crank 50 on the driving device (engine or gearbox) and the piston 40 of the compression mechanism, and both are connected through 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 driving device controls the reciprocating motion of the piston through a connecting rod structure, compresses the grass material entering the compression chamber, and transmits 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 sends out an alarm message externally, enabling the staff to timely detect the pressure change during the bale forming process of the baler, visualize the force change borne by the connecting rod structure during driving the piston to perform compression, obtain the density of each bale of grass material, and keep the bale density of the forage consistent, which is convenient for subsequent storage and transportation.

[0059] As a further preferred embodiment of the present invention, a temperature sensor and a vibration sensor are encapsulated inside the force arm of the connecting rod structure. Driven by the driving device and the connecting rod structure, the piston makes a reciprocating motion in the compression chamber to compact the grass flakes to prevent the grass flakes from rebounding, and continues to feedback force, temperature and vibration signals to the control terminal to monitor the pressure, temperature and vibration conditions borne by the piston connecting rod structure in real time; the driver manually inputs the pressure threshold, temperature threshold and vibration threshold at the control terminal, and the control terminal converts the real-time collected pressure signal, temperature signal and vibration signal into a pressure value, a temperature value and a vibration value, and compares them with the set pressure threshold, temperature threshold and vibration threshold. When one of the values exceeds the set threshold, the control terminal sends out an alarm message externally, and the staff discovers the abnormal situation and conducts targeted operation and maintenance work.

[0060] What is not described in the present invention applies to the prior art.

[0061] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A real-time monitoring and feedback piston connecting rod structure for a square bale baler, which comprises a front mounting plate, a rear mounting plate and a force arm. The front mounting plate and the rear mounting plate are respectively mounted at both ends of the force arm, and is characterized in that, The force arm has a hollow cavity that runs through from front to back. Inside the hollow cavity, there is a tower sensor and an inner ejector rod. The tower sensor is installed on the front mounting plate, and its interior encapsulates an induction coil. One end of the inner ejector rod is installed on the rear mounting plate. Inside the sub-cavity of the tower sensor, there is a spring, a connecting rod, and a permanent magnet connected in sequence. The spring is arranged close to the front mounting plate. The inner ejector rod extends along the hollow cavity of the force arm into the sub-cavity of the tower sensor, and the other end of the inner ejector rod contacts the permanent magnet.

2. The real-time monitoring and feedback piston connecting rod structure of the square bale 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 runs through the middle parts of the tower top, the tower body, and the tower base. The spring is arranged in the sub-cavity of the tower base. The connecting rod and the permanent magnet are arranged in the sub-cavity of the tower body. The induction coil is encapsulated inside the tower body and is arranged around the connecting rod and the permanent magnet. The end of the inner ejector rod extends from the sub-cavity of the tower top into the sub-cavity of the tower body and contacts the permanent magnet.

3. The real-time monitoring and feedback piston connecting rod structure of the square bale baler according to claim 2, characterized in that, Inside the tower top, there is also a temperature sensor encapsulated.

4. The real-time monitoring and feedback piston connecting rod structure of the square bale baler according to claim 2 or 3, characterized in that, Inside the tower base, there is also a vibration sensor encapsulated.

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

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

7. The real-time monitoring and feedback piston connecting rod structure of the square bale baler according to claim 1, characterized in that The force arm includes two L-shaped force arm side plates, and the two L-shaped force arm side plates are welded oppositely.

8. The real-time monitoring and feedback piston connecting rod structure of the square bale baler according to claim 1, characterized in that, Reinforcing plates are respectively 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 side surfaces of the force arm.

9. A real-time monitoring and feedback method for a square bale baler, which adopts the piston connecting rod structure described in any one of claims 1-8 in the square bale baler, is characterized in that, The front mounting plate of the connecting rod structure is fixedly connected to the piston, and the rear mounting plate of the connecting rod structure is connected to the driving end of the driving device; the driving device controls the reciprocating movement of the piston through the connecting rod structure, compresses the grass material entering the compression chamber, and transmits 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 externally.

10. The real-time monitoring and feedback method of the rectangular baler according to claim 9, characterized in that, A temperature sensor and a vibration sensor are encapsulated inside the tower sensor in the connecting rod structure, and the induced electromotive force signal, temperature signal, and vibration signal collected during the reciprocating compression process of the connecting rod structure are fed back to the control terminal together; the pressure threshold, temperature threshold, and vibration threshold are manually input into the control terminal; the control terminal converts the real-time collected pressure signal, temperature signal, and vibration signal into a pressure value, temperature value, and vibration value, and compares them with the set pressure threshold, temperature threshold, and vibration threshold. When one of the values exceeds the set threshold, the control terminal issues an alarm message externally.

Images