CN116429306B - Baler straw bale pressure detection device and detection method - Google Patents
Baler straw bale pressure detection device and detection methodInfo
- Publication number
- CN116429306B CN116429306B CN202310207277.0A CN202310207277A CN116429306B CN 116429306 B CN116429306 B CN 116429306B CN 202310207277 A CN202310207277 A CN 202310207277A CN 116429306 B CN116429306 B CN 116429306B
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- gear
- push rod
- baling
- detection device
- baler
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Abstract
本发明公开了一种打捆机草捆压力检测装置及检测方法，其安装在打捆连杆的其中一个侧面上，包括推杆，推杆的一端通过固定座与打捆连杆相连，另一端通过联轴器与异形油缸输入端的主推杆相连；异形油缸输出端的副推杆与第一齿轮相连且可驱动第一齿轮转动，副推杆的轴线与主推杆垂直，主推杆的直径大于副推杆的直径，主推杆和副推杆形成一级放大机构；第一齿轮与第二齿轮啮合，第一齿轮与第二齿轮构成二级放大机构；第二齿轮的中心轴与光电编码器相连，当第二齿轮转动时，光电编码器采集第二齿轮的转动角度。
The present invention discloses a straw bale pressure detection device and detection method for a baler. The device is installed on one side surface of a baling connecting rod and includes a push rod, one end of which is connected to the baling connecting rod through a fixed seat, and the other end is connected to a main push rod at an input end of a special-shaped oil cylinder through a coupling; an auxiliary push rod at an output end of the special-shaped oil cylinder is connected to a first gear and can drive the first gear to rotate, the axis of the auxiliary push rod is perpendicular to the main push rod, the diameter of the main push rod is larger than the diameter of the auxiliary push rod, and the main push rod and the auxiliary push rod form a first-level amplification mechanism; the first gear is meshed with the second gear, and the first gear and the second gear constitute a second-level amplification mechanism; the central axis of the second gear is connected to a photoelectric encoder, and when the second gear rotates, the photoelectric encoder collects the rotation angle of the second gear.
Description
Technical Field
The invention relates to the technical field of agricultural equipment, in particular to a baler bale pressure detection device and a baler bale pressure detection method.
Background
Bale density is an important index of bale quality and is also an important performance index of square balers. How to monitor the compaction pressure of the bales in real time in the bundling process provides scientific data basis for the regulation and control of bundling density, and is a key technical bottleneck for restricting the improvement of bundling quality.
At present, the research on the baling quality of the baler is mainly focused on the aspect of baling density adjustment (see patent CN110726642A in particular), the technical research on real-time baling pressure monitoring is less, baling density adjustment is mainly carried out manually, the technical proficiency of operators is high, meanwhile, the detection on baling density is important, the sampling inspection on formed bales is adopted, serious hysteresis exists, the problem that the baling compaction density is low can not be found in time and is adjusted in real time, and the quality improvement and intelligent development of the baler are seriously restricted.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a baler bale pressure detection device and a baler bale pressure detection method.
In order to achieve the above object, the present invention is realized by the following technical scheme:
The embodiment of the invention provides a baling press detection device of a baling machine, which is arranged on one side surface of a baling connecting rod and comprises a push rod, wherein one end of the push rod is connected with the baling connecting rod through a fixed seat, and the other end of the push rod is connected with a main push rod at the input end of a special-shaped oil cylinder through a coupler;
as a further technical scheme, a gyroscope is also fixed on the bundling connecting rod.
As a further technical scheme, the first gear is a sector gear, a groove is formed in the sector gear, one end of the first pin shaft is fixedly connected with the auxiliary push rod, the other end of the first pin shaft is inserted into the groove, and connection between the auxiliary push rod and the first gear is achieved.
As a further technical scheme, the first gear and the second gear are arranged on the gear train base, the gear train base is fixedly connected with the second pin shaft, the third pin shaft is hinged and connected, the first gear is hinged and connected with the second pin shaft through the rotating shaft hole, and the second gear is fixedly connected with the third pin shaft.
As a further technical scheme, the third pin shaft is connected with the photoelectric encoder.
As a further technical solution, the push rod is supported by a linear belt seat bearing.
As a further technical scheme, the linear bearing with the seat is coaxially arranged with the fixed seat.
As a further technical scheme, the special-shaped oil cylinder is fixed on the bundling connecting rod.
As a further technical scheme, the coupling is an axial incompressible coupling.
In a second aspect, the invention also discloses a detection method based on the baler bale pressure detection device, which comprises the following steps:
When the bales are not placed, monitoring the monitoring value of the photoelectric encoder when the bundling connecting rod is at the movement limit position through a gyroscope, obtaining the average value of the monitoring value through multiple tests, and correcting the monitoring value of the photoelectric encoder by taking the average value of the monitoring value as the self-measurement error of the monitoring system;
The bundling connecting rod receives opposite acting force to generate compression deformation in the process of compressing the bales, so that the push rod pushes the main push rod of the special-shaped oil cylinder to move, the auxiliary push rod pushes the auxiliary push rod to move through hydraulic oil, the auxiliary push rod can multiply and amplify the stroke of the main push rod, the auxiliary push rod pushes the tail part of the first gear, the first gear rotates, the first gear pushes the second gear to rotate, the first gear serves as a secondary amplifying mechanism to continuously amplify the stroke, and finally the amplified numerical value X is monitored through the photoelectric encoder;
And establishing a functional relation model F=G (X) of the value X and the bale pressure F to obtain the bale pressure.
The beneficial effects of the embodiment of the invention are as follows:
The invention realizes real-time measurement of the baling pressure by monitoring the deformation of the baling connecting rod, designs a deformation secondary amplifying mechanism, reduces the precision and difficulty of a deformation monitoring component, monitors the moving process of the baling connecting rod in real time by designing an error compensating system (the corresponding component is a gyroscope), monitors the monitoring value of the photoelectric encoder when the baling is not placed at the movement limit position by the gyroscope, acquires the average value of the monitoring value by multiple tests, corrects the monitoring value of the photoelectric encoder in the baling operation process by taking the value as the self-measuring error of the monitoring system, further eliminates or reduces the monitoring error caused by the movement inertia, further improves the accuracy of the monitoring result, can provide accurate data support for the baling pressure of the baling machine, improves the baling operation quality, and lays a reliable foundation for the intelligent operation of baling tools.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a front view of a baler bale pressure detection apparatus;
FIG. 2 is a three-dimensional block diagram of a baler bale pressure detection apparatus;
FIG. 3 is an enlarged schematic view of the right end structure of FIG. 2;
FIG. 4 is a schematic diagram of a special-shaped oil cylinder structure;
FIG. 5 is a schematic diagram of a sector gear mechanism;
FIG. 6 is a schematic diagram of the intelligent control system;
In the figure, a bundling connecting rod 1, a protective cover 2, a fixed seat 3, a base 4, a split pin 5, a gyroscope 6, a push rod 7, a straight line bearing with a seat 8, a coupler 9, a special-shaped oil cylinder 10, a photoelectric encoder 11, a bracket 12, a gear 13, a gear train base 14, a sector gear 15, a second pin roll 16, a first pin roll 17 and a third pin roll 18.
1001 Main push rod, 1002 cylinder body, 1003 special-shaped oil cylinder base, 1004 oil cylinder cavity, 1005 auxiliary push rod, 1501 chute, 1502 pivot hole.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular forms also are intended to include the plural forms unless the present invention clearly dictates otherwise, and furthermore, it should be understood that when the terms "comprise" and/or "include" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
The terms "mounted," "connected," "secured," and the like in this disclosure are to be construed broadly, and they may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, internally connected, or the interaction of two elements, as will be apparent to those of ordinary skill in the art, in view of the detailed description of the disclosure.
As described in the background art, the invention provides a baler bale pressure detection device and a baler bale pressure detection method for solving the technical problems.
The embodiment discloses bundling machine bale pressure detection device and monitoring method, combines fig. 1 through 6, including bundling connecting rod 1, guard shield 2 passes through bolt and bundling connecting rod 1 fixed connection, and guard shield 2 is soft rubber material, easily takes place slight compression deformation, and guard shield 2 adopts rubber material mainly not to influence the deformation volume of bundling connecting rod for dustproof.
The fixing seat 3 is fixedly connected with one surface of the bundling connecting rod 1, as shown in fig. 2 and 3, the fixing seat 3 is arranged on the top surface of the bundling connecting rod 1 and is positioned near the end part, one end of the base 4 is fixedly connected with the fixing seat 3 through a bolt, the other end of the base is fixedly connected with one end of the push rod 7 through a cotter pin, the other end of the push rod 7 passes through a linear belt seat bearing 8 and is connected with a main push rod 1001 of the special-shaped oil cylinder 10 through a coupler 9, the linear belt seat bearing 8 is fixedly connected with the bundling push rod 1 through a bolt, and the linear belt seat bearing 8, the base 4 and the fixing seat 3 are kept coaxial, so that the axial movement of the push rod 7 is facilitated.
Further, as shown in fig. 4, the structure of the special-shaped oil cylinder 10 includes a main push rod 1001, a cylinder 1002, a special-shaped oil cylinder base 1003, an oil cylinder cavity 1004, and an auxiliary push rod 1005, wherein the special-shaped oil cylinder base 1003 is fixedly connected with the top surface of the bundling connecting rod 1 through a bolt, the main push rod 1001 is fixedly connected with the second end of the push rod 7 through a coupling 9, the coupling 9 is an axially incompressible coupling, the oil cylinder cavity 1004 is filled with hydraulic oil, the diameter D1 of the main push rod 1001 is 2 times the diameter D2 of the auxiliary push rod 1005, and the axis of the main push rod 1001 is perpendicular to the axis of the auxiliary push rod 1005. The special-shaped oil cylinder 10 in the embodiment is a first-stage amplification mechanism of the stroke of the push rod;
One end of the first pin 17 is fixedly connected with the auxiliary push rod 1005, the other end of the first pin 17 is hinged with the chute 1501 of the sector gear 15, when the bundling connection is deformed, the first pin 17 moves telescopically with the auxiliary push rod 1005, namely, when the auxiliary push rod 1005 moves, the first pin 17 can drive the sector gear 15 to rotate, and then the sector gear 15 drives the gear 13 to rotate, the gear train base 14 is fixedly connected with the bundling connection rod 1 through a bolt, the gear train base 14 is fixedly connected with the second pin 16, the third pin 18 is hinged with the gear train base 14, namely, the third pin 18 can rotate relative to the second pin 16, the sector gear 15 is fixedly connected with the third pin 18, namely, when the gear 13 rotates, the third pin 18 also rotates, the pushing length L1= 0.5L2 of the sector gear 15 is the driven length (see fig. 5 in particular), and the sector gear 15 forms a secondary amplifying mechanism. The photoelectric encoder 11 is fixedly connected with the third pin shaft 18 through a coupler, the resolution of the photoelectric encoder 11 in the embodiment is 2000 pulse signals per rotation, a small rotation angle can be accurately monitored, the encoder 11 collects the rotation angle of the third pin shaft 18, and the deformation of the bundling connecting rod 1 is finally obtained through the rotation angle of the third pin shaft 18, so that the bundling pressure is obtained.
The support 12 is fixedly connected with the top surface of the bundling connecting rod 1 through bolts, and the photoelectric encoder 11 is fixedly connected with the support 12 through bolts, so that the photoelectric encoder 11 is fixed on the support 12.
Further, in this embodiment, a gyroscope 6 is further provided, and the gyroscope 6 is fixedly connected to the top surface of the bundling link 1, that is, the gyroscope and the push rod 7 are disposed on the same surface of the bundling link 1. The method is mainly used for monitoring the bundling pressure of a square bundle bundling machine in real time, in the square bundle bundling process, the bundling connecting rod 1 is subjected to important bearing pressure in the bundling compacting stage, the bundling connecting rod 1 is subjected to smaller compression deformation due to larger pressure, and accurate monitoring of the compression deformation is difficult to achieve through a conventional monitoring method.
The primary amplifying mechanism and the secondary amplifying mechanism are fixed on the bundling connecting rod 1, the bundling connecting rod 1 is in reciprocating motion in the bundling process and can undergo different stages such as acceleration, deceleration, zero speed and the like, and continuously and circularly changes, and certain inertia exists on the primary amplifying mechanism and the secondary amplifying mechanism, and certain error influence can be caused on a measurement result, so the invention relates to a monitoring error elimination or reduction method. By a test method, a functional relation model F=a (x-k) 2 +b (x-k) +c (a, b, c is a constant, a is not equal to 0) of a compression deformation monitoring value x of the bundling connecting rod and the bundling pressure F is established, wherein x is a detection deformation value in normal bundling operation, k is an inertia detection value of a system when the bundling is not added, and a, b, c are curve fitting through experimental data pairs.
The invention realizes real-time measurement of the baling pressure by monitoring the deformation of the baling connecting rod, designs a deformation 2-stage amplifying mechanism, reduces the precision and difficulty of a deformation monitoring component, eliminates or reduces the monitoring error caused by motion interference by designing an error compensation system, further improves the accuracy of a monitoring result, can provide accurate data support for the baling pressure of the baling machine, improves the baling operation quality, and lays a reliable foundation for the intelligent operation promotion of the baling machine.
The monitoring method comprises the following steps:
in the process of bundling operation, the bundling connecting rod 1 receives opposite acting force in the process of compressing a bale to generate compression deformation, one end of the push rod 7 is fixedly connected with one end of the bundling connecting rod 1 through the base, and the other end of the push rod can move freely and axially, so when the bundling connecting rod is deformed, the other end of the push rod pushes the main push rod 1001 of the special-shaped oil cylinder to move because of deformation, hydraulic oil pushes the auxiliary push rod 1005 to move, and the resistance of the auxiliary push rod end is smaller, so that the hydraulic oil is in a non-compression state, the acting force of the main push rod can be applied to the auxiliary push rod 1005, and the auxiliary push rod can multiply and amplify the stroke of the main push rod because the cross section of the main push rod 1001 is larger than that of the auxiliary push rod, the auxiliary push rod pushes the tail part of the sector gear to rotate through pushing the sector gear, the sector gear serves as a secondary amplifying mechanism to continuously amplify the stroke, and finally the amplified stroke is monitored through the photoelectric encoder. Meanwhile, through error elimination, monitoring errors caused by vibration of the bundling connecting rod are reduced.
Finally, it is pointed out that relational terms such as first and second are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310207277.0A CN116429306B (en) | 2023-02-28 | Baler straw bale pressure detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310207277.0A CN116429306B (en) | 2023-02-28 | Baler straw bale pressure detection device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116429306A CN116429306A (en) | 2023-07-14 |
| CN116429306B true CN116429306B (en) | 2025-10-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635582A (en) * | 2015-01-15 | 2015-05-20 | 江苏大学 | Vehicle-mounted terminal of round bander and control system and method |
| CN204462717U (en) * | 2015-01-15 | 2015-07-08 | 江苏大学 | A kind of car-mounted terminal of round bale baler and control system |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635582A (en) * | 2015-01-15 | 2015-05-20 | 江苏大学 | Vehicle-mounted terminal of round bander and control system and method |
| CN204462717U (en) * | 2015-01-15 | 2015-07-08 | 江苏大学 | A kind of car-mounted terminal of round bale baler and control system |
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