阅读说明：本技术 一种共振减阻自适应自激振动深松机 (Resonance drag reduction self-adaptive self-excited vibration subsoiler ) 是由 黄东岩 刘鹤 王奇 朱龙图 丛永健 庄健 赵佳乐 于 2019-05-06 设计创作，主要内容包括：一种共振减阻自适应自激振动深松机属于农业机械；在机架总成的前横梁上固装支架,在支架的后侧部上铰装深松铲座,深松铲固装在深松铲座上,空气弹簧的前、后端分别铰连在深松铲座和机架总成的后横梁上,在支架上安装深松铲拉压力传感器,振幅与振频传感器安装在深松铲上,空气弹簧通过电气比例阀依次与空滤器、储气罐及空压机连通,自动控制器通过导线分别与电气比例阀、深松铲拉压力传感器和振幅与振频传感器连通；本机消除了深松铲自激振动失效问题的发生,具有结构合理、自适应土壤阻力变化范围广、能力强、实时调节快速、自动化程度高、深松碎土作业效果好的特点。(A resonance drag reduction self-adaptive self-excited vibration subsoiler belongs to agricultural machinery; a bracket is fixedly installed on a front cross beam of a rack assembly, a subsoiler seat is hinged on the rear side part of the bracket, a subsoiler is fixedly installed on the subsoiler seat, the front end and the rear end of an air spring are respectively hinged on the subsoiler seat and a rear cross beam of the rack assembly, a subsoiler pulling pressure sensor is installed on the bracket, an amplitude and vibration frequency sensor is installed on the subsoiler, the air spring is sequentially communicated with an air filter, an air storage tank and an air compressor through an electric proportional valve, and an automatic controller is respectively communicated with the electric proportional valve, the subsoiler pulling pressure sensor and the amplitude and vibration frequency sensor through wires; the subsoiler eliminates the problem of self-excited vibration failure of the subsoiler, and has the characteristics of reasonable structure, wide adaptive soil resistance change range, strong capability, quick real-time adjustment, high automation degree and good subsoiling and soil crushing operation effects.)

1. The utility model provides a resonance drag reduction self-adaptation self-excited vibration subsoiler which characterized in that: a bracket (3) is fixedly arranged on a front cross beam (4) of a rack assembly (1), a subsoiler seat (2) is rotatably hinged on the rear part of the bracket (3), a subsoiler (7) is fixedly arranged on the lower part of the rear side of the subsoiler seat (2), and the front end and the rear end of an air spring (8) are respectively hinged on the lower part of the rear side of the subsoiler seat (2) and a rear cross beam (14) of the rack assembly (1); a subsoiling shovel pulling pressure sensor (5) is arranged on the bracket (3), and an amplitude and vibration frequency sensor (6) is arranged on the subsoiling shovel (7); air spring (8) communicate with air filter (10), gas holder (11) and air compressor machine (12) in proper order through electric proportional valve (9), electric proportional valve (9) pass through wire and automatic control (13) intercommunication, subsoiler draws pressure sensor (5) and amplitude and shakes frequency sensor (6) and communicates with automatic control (13) respectively through the wire.

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a deep soil loosening and soil preparation working machine.

Background

The traction resistance of the deep scarification and land preparation operation of the machine is large, so a large amount of energy is consumed, and the operation cost is high. The effective and reliable reduction of the traction resistance of the deep scarification mechanical operation is the key for reducing energy consumption, reducing cost and improving economic benefits of agricultural production.

The self-excited vibration subsoiler of present use installs the compression spring who has certain pretightning force on the subsoiler, through compression and the extension of compression spring, makes the subsoiler produce the vibration, has the function that reduces the drag resistance, has played certain effect that reduces energy consumption and operating cost. The self-excited vibration subsoiler is mainly based on the soil resistance change caused by the uneven soil surface, the uneven soil mechanical property, soil sundries and other reasons and the vibration of a suspension or traction system caused by the vibration of a tractor engine, and eliminates the energy consumption of a forced vibration machine tool caused by the vibration excitation of a transmission system. However, the existing self-excited vibration subsoilers with spring excitation sources have limited variation range and capacity of dealing with soil resistance due to the constant stiffness of the pressure spring, and have the problem that self-excited vibration is discontinuously ineffective, namely, cannot vibrate, so that the subsoiling and soil breaking operation quality is poor, and the tilling depth stability and the resistance reducing effect cannot be guaranteed.

Disclosure of Invention

The invention aims to solve the problems of the spring excitation source self-excited vibration subsoiler in the prior art, and provides a resonance drag reduction self-adaptive self-excited vibration subsoiler, which achieves the purposes of wide adaptive soil resistance change range, strong capacity, elimination and avoidance of interval vibration stoppage of a subsoiler, reduction of traction resistance and energy consumption, reduction of operation cost, good operation quality and high automation degree.

The purpose of the invention is realized as follows: a bracket is fixedly arranged on a front cross beam of the frame assembly, a subsoiler seat is rotatably hinged on the rear part of the bracket, a subsoiler is fixedly arranged on the lower part of the rear side of the subsoiler seat, and the front end and the rear end of an air spring are respectively hinged on the lower part of the rear side of the subsoiler seat and a rear cross beam of the frame assembly; a subsoiler tension pressure sensor is arranged on the bracket, and an amplitude and vibration frequency sensor is arranged on the subsoiler; the air spring is sequentially communicated with the air filter, the air storage tank and the air compressor through an electric proportional valve, the electric proportional valve is communicated with the automatic controller through a wire, and the subsoiler drawing pressure sensor and the amplitude and vibration frequency sensor are respectively communicated with the automatic controller through wires, so that the resonance drag reduction self-adaptive self-excited vibration subsoiler is formed.

The invention can automatically adjust the extrusion strength of the air spring to the subsoiler in real time according to different plough layer environments and operation conditions, avoids and eliminates the problems of poor adaptability and self-excited vibration failure (namely the subsoiler does not vibrate) of the subsoiler when the soil resistance is operated in different plots, and has the characteristics of reasonable structure, wide variation range of self-adaptive soil resistance, strong capacity, quick real-time adjustment, high automation degree and good subsoiling and soil crushing operation effects.

Drawings

FIG. 1 is a schematic structural diagram of a resonance drag reduction self-adaptive self-excited vibration subsoiler.

Description of part numbers in the figures:

1. the subsoiler comprises a frame assembly, 2, a subsoiler seat, 3, a support, 4, a front cross beam, 5, a subsoiler pulling pressure sensor, 6, an amplitude and vibration frequency sensor, 7, a subsoiler, 8, an air spring, 9, an electric proportional valve, 10, an air filter, 11, an air storage tank, 12, an air compressor, 13, an automatic controller, 14 and a rear cross beam.

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A resonance drag reduction self-adaptive self-excited vibration subsoiler is characterized in that a support 3 is fixedly mounted on a front cross beam 4 of a frame assembly 1, a subsoiler seat 2 is rotatably hinged and mounted on the rear portion of the support 3, a subsoiler 7 is fixedly mounted on the lower portion of the rear side of the subsoiler seat 2, and the front end and the rear end of an air spring 8 are respectively hinged and connected to the lower portion of the rear side of the subsoiler seat 2 and a rear cross beam 14 of the frame assembly 1; a subsoiler tension and pressure sensor 5 is arranged on the bracket 3, and an amplitude and vibration frequency sensor 6 is arranged on a subsoiler 7; the air spring 8 is sequentially communicated with an air filter 10, an air storage tank 11 and an air compressor 12 through an electric proportional valve 9, the electric proportional valve 9 is communicated with an automatic controller 13 through a lead, and the subsoiler drawing pressure sensor 5 and the amplitude and vibration frequency sensor 6 are respectively communicated with the automatic controller 13 through leads.

During operation, the machine moves forward under the traction of a traction tractor, and the subsoiler 7 is positioned in soil to complete subsoiling and soil crushing. When the soil resistance that subsoiler 7 receives changes, subsoiler draws pressure sensor 5 and amplitude vibration frequency sensor 6 to pass through the wire with the signal of telecommunication of real-time measurement and transmits for automatic control 13 after carrying out the discernment analysis processing, by electric proportional valve 9 with air compressor machine 12, gas holder 11, air filter 10 and air spring 8 intercommunication, with the size of real-time regulation change air spring 8 to subsoiler 7 extrusion force, when guaranteeing that subsoiler 7 produces self-excited vibration all the time, make subsoiler 7 have and adapt to reasonable vibration amplitude and vibration frequency under this operating mode condition, improve the operating mass.