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Graded-response load feedback control system for orchard ditchers and control method

A technology of load feedback and regulation device, applied in non-electric variable control, control/regulation system, speed/acceleration control and other directions, can solve the problems of maintaining the ideal speed of the bulldozer, the efficiency of header blockage, the influence of operation efficiency, etc., and achieve low failure Efficient operation, simple and compact structure, simple and reliable principle

Inactive Publication Date: 2014-01-22
JIANGSU UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During orchard ditching operations, the ditching load gradually increases or even suddenly increases due to factors such as changes in the soil conditions of the orchard, entanglement of weeds, and even stone blocks. Different situations such as the gradual increase of load caused by weed entanglement and blockage and the sharp increase of load caused by stone blocking are distinguished, and then active adjustments are made according to the change of load and the sharpness of the change, so the blades and transmission of the machine often Components and even engine failures result in a high rate of downtime and maintenance, greatly affecting operating efficiency
Patents CN101653069 and CN201263315 proposed a load feedback control device and control method for a combine harvester, but the above-mentioned patents only aim at the change of the feeding amount, and propose to adjust the walking speed of the harvester by fusing the monitoring information of different parts of the combine harvester, so as to To avoid header clogging or low efficiency; patent CN102155033B proposes a hydrostatic bulldozer drive system load feedback speed control method, but only according to the monitored oil pressure of the working oil circuit and engine speed to control the oil intake and variable pump, variable motor row The amount of adjustment to maintain the ideal speed of the bulldozer
None of the above-mentioned patents has any content related to the automatic distinction of the degree of load change and the targeted hierarchical response mode and control method

Method used

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  • Graded-response load feedback control system for orchard ditchers and control method

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Embodiment Construction

[0023] The specific technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] In this embodiment, an apple orchard is taken as an example.

[0025] Such as figure 1 As shown, the speed regulating actuator 16 is composed of a manual speed regulating sub-mechanism and an automatic speed regulating sub-mechanism. The manual speed regulating sub-mechanism includes a handle 1, a moving frame 2, a bolt 3, a friction plate 4, a gasket 5, a nut 6, a pull rod 7. Fork 12 and connecting rod 11; the automatic speed regulation sub-mechanism includes two-way overrunning clutch 8, fork 12, connecting rod 11 and motor 9. The handle 1 is hinged to the moving frame 2, and the moving frame 2 is hinged to the support through the bolt 3, the friction plate 4, the gasket 5, and the nut 6; The connecting rod 11 is hinged; the swing rod 12 is connected with the motor 9 through the two-way overrunning clutch 8, and ...

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Abstract

The invention discloses a graded-response load feedback control system for orchard ditchers and a control method. The graded-response load feedback control system for orchard ditchers is added on a speed regulation actuator and an HST hydraulic stepless speed change system of a ditcher. The rotational speed of a ditcher shaft is monitored in real time by a speed sensor, a controller differentially computes a filtered rotational speed signal ns to obtain the real-time acceleration a of the ditcher shaft, and if a is less than an acceleration threshold a0, then time sampling is triggered. If load change time t is less than a time threshold t0 when the rotational speed ns reaches 0.6n0, which indicates that load is sharply increased, then an electromagnetic clutch is rapidly released, at the same time, an electromagnetic brake rapidly performs braking, and an alarm system gives the alarm; and if t is greater than t0, then the advancing speed of the ditcher is automatically regulated, so that ditching load is decreased to an optimal state. The invention realizes the graded-response load feedback control of the operation of the orchard ditcher, effectively decreases the fault rate of the ditcher, increases the efficiency of operation, and is applicable to the operation of orchard ditchers.

Description

technical field [0001] The invention belongs to the field of agricultural equipment, and in particular relates to a ditching machine graded response load feedback control technology. Background technique [0002] During orchard ditching operations, the ditching load gradually increases or even suddenly increases due to factors such as changes in the soil conditions of the orchard, entanglement of weeds, and even stone blocks. Different situations such as the gradual increase of load caused by weed entanglement and blockage and the sharp increase of load caused by stone blocking are distinguished, and then active adjustments are made according to the change of load and the sharpness of the change, so the blades and transmission of the machine often Components and even engine failures result in a high rate of downtime and maintenance, greatly affecting operating efficiency. Patents CN101653069 and CN201263315 proposed a load feedback control device and control method for a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D13/00A01B13/04A01B13/16
Inventor 刘继展冯上海
Owner JIANGSU UNIV
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