Automatic tool setting system of silage maize harvester
By introducing a vibration transmitter and PLC controller into the forage harvester, combined with a servo motor and flexible coupling, the problem of piezoelectric sensors being susceptible to interference was solved, enabling precise blade setting and stable operation of the forage harvester, thus improving the level of automation and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-24
AI Technical Summary
The piezoelectric vibration sensors used in existing silage harvesters have a single signal and are easily interfered with, leading to misjudgments and device damage, making it difficult to work stably in complex mechanical environments.
An automatic tool setting system for silage harvesters is constructed by using a vibration transmitter and a PLC controller, combined with a servo motor and a flexible coupling, to achieve precise tool setting and stable control.
This improves the automation level of the forage harvester, ensures precise alignment of the fixed and moving blades, enhances the stability and reliability of the machine, reduces manual intervention, and lowers the failure rate and maintenance costs.
Smart Images

Figure CN224022403U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a silage machine automatic tool setting system. BACKGROUND
[0002] The vibration sensor for detecting vibration in the tool setting system of the widely used silage machine at home is a piezoelectric sensor, and the sensor signal is single and weak, and is easily interfered by other signals. However, the environment in mechanical work is relatively complex, and the signal interference is serious, which can easily lead to misjudgment and damage the device. Therefore, a new type of vibration sensor and control system are needed to meet the stability of mechanical work. UTILITY MODEL CONTENTS
[0003] The utility model aims at solving the above technical deficiencies, and provides a silage machine automatic tool setting system.
[0004] A silage machine automatic tool setting system, including controller, instrument, actuating mechanism, fixed tool, the actuating mechanism includes motor, screw rod, rocker arm, vibration transmitter, the output end of motor is connected with one end of screw rod, the one end of screw rod is connected with rocker arm, the fixed tool is located in the side of rocker arm, the vibration transmitter is used for inducting the vibration of fixed tool and transmits vibration signal to controller, the instrument sends the tool setting signal to controller, and the controller controls the motor to work.
[0005] Further, the controller is a PLC.
[0006] Further, the motor is a servo motor.
[0007] Further, the material of the fixed tool is steel or titanium alloy.
[0008] Further, the output end of the motor is connected with the screw rod through a shaft coupling.
[0009] Further, the shaft coupling is an elastic shaft coupling.
[0010] Advantages: compared with the prior art, the utility model has the following advantages:
[0011] The old piezoelectric vibration sensor is replaced by a more flexible vibration transmitter, which can select a more suitable and stable output signal according to different needs, and increase the stability of the machine.
[0012] The tool setting signal of the instrument is received by the controller, and the actuating mechanism (including motor, screw rod, rocker arm, etc.) is controlled to automatically tool setting operation, which greatly improves the automation degree of the silage machine, reduces manual intervention, and improves work efficiency.
[0013] The vibration transducer can sense the vibration of the fixed knife and transmit signals to the controller, which can accurately adjust the working state of the motor according to the signals, ensure the accurate alignment between the fixed knife and the moving knife, and improve the cutting efficiency and cutting quality.
[0014] The PLC (Programmable Logic Controller) is used as the controller, so that the system has strong adaptability and flexibility, can be programmed and adjusted according to different working requirements, and meets various working scenes.
[0015] The servo motor, as part of the actuator, has the characteristics of high precision and high stability, and can ensure the stability and reliability during the alignment process. At the same time, the motor is connected with the screw through a coupling (especially an elastic coupling), which can further reduce vibration and impact and improve the overall stability of the system.
[0016] The fixed knife is made of high-strength materials such as steel or titanium alloy, has high wear resistance and corrosion resistance, can prolong the service life, reduce the replacement frequency, and reduce the maintenance cost.
[0017] The whole system has compact structure and small floor area, and is convenient to install and debug. At the same time, the connection between the various components is tight and reliable, which reduces the possibility of failure. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a principle diagram of an automatic alignment system of a silage machine.
[0019] In the figure, 1 is an instrument, 2 is a controller, 3 is a motor, 4 is a screw, 5 is a rocker arm, 6 is a fixed knife, and 7 is a vibration transducer. DETAILED DESCRIPTION
[0020] In order to deepen the understanding of the present application, the present application will be further described in combination with embodiments and drawings, and the embodiments are only used to explain the present application and do not constitute a limitation on the protection scope of the present application.
[0021] As Figure 1 described, the instrument 1, the controller 2, the motor 3, the screw 4, the rocker arm 5, the fixed knife 6, and the vibration transducer 7;
[0022] An automatic alignment system of a silage machine comprises a controller 2, an instrument 1, an actuator, and a fixed knife 6. The actuator comprises a motor 3, a screw 4, a rocker arm 5, and a vibration transducer 7. The output end of the motor 3 is connected with one end of the screw 4, and the screw 4 is connected with one end of the rocker arm 5. The fixed knife 6 is located at the side of the rocker arm 5. The vibration transducer 7 is used to sense the vibration of the fixed knife 6 and transmit the vibration signals to the controller 2. The instrument 1 sends an alignment signal to the controller 2, and the controller 2 controls the motor to work.
[0023] In the present embodiment, the controller 2 is a PLC.
[0024] In the present embodiment, the motor 3 is a servo motor 3.
[0025] In the present embodiment, the material of the fixed knife 6 is steel or titanium alloy.
[0026] In the present embodiment, the output end of the motor 3 is connected with the screw rod 4 through a coupling.
[0027] In the present embodiment, the coupling is an elastic coupling.
[0028] The above merely provides the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An automatic blade setting system for a silage harvester, characterized in that, The system includes a controller, instruments, an actuator, and a fixed blade. The actuator includes a motor, a screw, a rocker arm, and a vibration transmitter. The output end of the motor is connected to one end of the screw, and the screw is connected to one end of the rocker arm. The fixed blade is located to the side of the rocker arm. The vibration transmitter is used to sense the vibration of the fixed blade and transmit the vibration signal to the controller. The instruments send a tool setting signal to the controller, and the controller controls the motor to work.
2. The automatic blade setting system for a silage harvester according to claim 1, characterized in that, The controller is a PLC.
3. The automatic blade setting system for a silage harvester according to claim 1, characterized in that, The motor mentioned is a servo motor.
4. The automatic knife-setting system for a silage harvester according to claim 1, characterized in that, The fixed blade is made of steel or titanium alloy.
5. The automatic blade setting system for a silage harvester according to claim 1, characterized in that, The output end of the motor is connected to the screw via a coupling.
6. The automatic blade setting system for a silage harvester according to claim 5, characterized in that, The coupling is a flexible coupling.