CN108506283A - A kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage - Google Patents

A kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage Download PDF

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Publication number
CN108506283A
CN108506283A CN201810184305.0A CN201810184305A CN108506283A CN 108506283 A CN108506283 A CN 108506283A CN 201810184305 A CN201810184305 A CN 201810184305A CN 108506283 A CN108506283 A CN 108506283A
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China
Prior art keywords
transfer passage
conveying
directional valve
electronic control
way
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Pending
Application number
CN201810184305.0A
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Chinese (zh)
Inventor
陈远玲
孙英杰
梁浩昌
李文全
卢煜海
龙禹平
覃东东
李玉凤
杨炳三
蒲世新
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Guangxi University
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Guangxi University
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Priority to CN201810184305.0A priority Critical patent/CN108506283A/en
Publication of CN108506283A publication Critical patent/CN108506283A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D45/00—Harvesting of standing crops
    • A01D45/10—Harvesting of standing crops of sugar cane
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D57/00—Delivering mechanisms for harvesters or mowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00—Roller-ways
    • B65G13/02—Roller-ways having driven rollers
    • B65G13/06—Roller driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers
    • B65G39/12—Arrangements of rollers mounted on framework
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0202—Agricultural and processed food products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6656—Closed loop control, i.e. control using feedback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/77—Control of direction of movement of the output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/875—Control measures for coping with failures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Harvesting Machines For Specific Crops (AREA)

Abstract

The invention discloses a kind of anti-blocking electrohydraulic control systems of sugar-cane cutting machine transfer passage, the system includes electronic control unit and 3-position 4-way electromagnetism throttled directional valve, two hydraulic ports of 3-position 4-way electromagnetism throttled directional valve connect with two hydraulic ports of hydraulic motor respectively, the another two hydraulic port of 3-position 4-way electromagnetism throttled directional valve connects with hydraulic power source and fuel tank respectively, magnet steel and torque sensor are installed, speed probe is mounted near magnet steel on conveying axis；Speed probe, the signal output end of torque sensor are connected with the input terminal of electronic control unit, and the output end of electronic control unit is connected with the solenoid valve of 3-position 4-way electromagnetism throttled directional valve；Speed probe, torque sensor, electronic control unit and 3-position 4-way electromagnetism throttled directional valve solenoid valve connect with Switching Power Supply, to obtain working power.Present system can remove transfer passage tamper according to the torque and speed automation transfer passage traffic direction of conveying axis.

Description

A kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage
Technical field
The present invention relates to automation field, more particularly to a kind of electricity for solving the blocking of sugar-cane cutting machine transfer passage Liquid control system.
Background technology
Sugarcane is the main sugar crop in China, and Chinese sugarcane yield ranks the third of the world, and is main sugar material in the world One of producing country and country of consumption.The development of Sugarcane Industry directly affects income and the life of several ten million sugarcane growers.Therefore, sweet at present Sugarcane harvester has prodigious market application demand.But there are still transfer passages to block up during harvesting sugarcane for sugar-cane cutting machine The problem of plug.The main reason is that due to the undulating topography of China sugarcane main producing region, sugarcane is easy to roll in hillside fields.It lodges, is curved Bent sugarcane easily snaps off and blocks logistics corridor.The problem of wherein transfer passage sugarcane blocks, is asking firstly the need of solution Topic.
Now there are also cane harvesting machines to have the function of that automatically controlling transfer passage reversely conveys, to reach automatic removing The purpose of blocking, such as the Chinese patent of Chinese Patent Application No. 201710176102.2 disclose Movement attributes and its clear Blocking control method, controller and control system, but its control when lacking reversed conveying to conveying speed, are only believed by pressure Number as the foundation for judging whether transfer passage blocks, the case where being easy to happen erroneous judgement.
Invention content
Technical problem to be solved by the invention is to provide a kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage, The system is used as the foundation for judging whether transfer passage blocks by torque signal, tach signal, utilizes 3-position 4-way electromagnetism section It flows reduction of speed when reversal valve realizes reversed conveying to convey, effectively prevent transfer passage to block, have accuracy of judgement, conveying effect good Advantage.
The present invention solves above-mentioned technical problem with following technical solution：
A kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage of the present invention, it includes by two-way quantitative hydraulic motor Drive and realize the conveying upper roller and conveying lower roll of positive and negative rotation, conveying upper roller and conveying lower roll be separately mounted to convey roll shaft and It conveys on lower roller shaft, which further includes electronic control unit, 3-position 4-way electromagnetism throttled directional valve, torque sensor and rotating speed Sensor, two hydraulic ports A, B of 3-position 4-way electromagnetism throttled directional valve respectively with two liquid of two-way quantitative hydraulic motor Pressure side mouth C, D connect, another two hydraulic pressure hydraulic port P, T of 3-position 4-way electromagnetism throttled directional valve respectively with hydraulic power source and fuel tank Connect, 3-position 4-way electromagnetism throttled directional valve sets that there are two for switching the solenoid valve of hydraulic channel PA or PB；Roll shaft in conveying Or mounting magnetic steel and torque sensor on conveying lower roller shaft, speed probe are mounted near magnet steel, for receiving turning for magnet steel Speed；Speed probe, the signal output end of torque sensor are connected with the input terminal of electronic control unit, electronic control unit Output end be connected with the solenoid valve of 3-position 4-way electromagnetism throttled directional valve；Speed probe, torque sensor, electronic control The solenoid valve of unit and 3-position 4-way electromagnetism throttled directional valve connects with Switching Power Supply, to obtain working power.
Electronic control unit of the present invention uses PLC controller；The torque sensor uses dynamic torque sensor； The speed probe uses Hall revolution speed transducer；The Switching Power Supply uses 24V Switching Power Supplies.
The torque value T of torque sensor of the present invention1, the velocity amplitude N of the speed probe1, the electronic control list The torque threshold T of member0, rotary speed threshold value N0, when transfer passage works normally：T1＜ T0And N1＞ N0, electronic control unit at this time Control 3-position 4-way electromagnetism throttled directional valve makes two-way quantitative hydraulic motor realize rotating forward working condition；When transfer passage occurs to block up When plug：T1≥T0And N1≤N0, at this time electronic control unit automatically control 3-position 4-way electromagnetism throttled directional valve to two-way quantitative liquid Pressure motor commutates, and realizes reversion working condition, transfer passage is run when to realize that sugar-cane cutting machine transfer passage blocks Direction automatically controls.
In conveying of the present invention roll shaft and conveying lower roller shaft it is rack-mount by bearing respectively, in conveying roll shaft with It is separately installed with the gear being meshed on conveying lower roller shaft；The both ends of the torque sensor respectively through positive coupling with it is two-way The output shaft of constant displacement hydraulic motor and the upper roll shaft of conveying or conveying lower roller shaft are connected.
Speed probe of the present invention is mounted in rack, and the mounting distance of speed probe and magnet steel is 1mm.
Compared with prior art, the present invention has the advantages that：
1. the present invention can be according to the upper roll shaft of conveying and conveying lower roller shaft when transfer passage blocks, the liter of torque value High and tachometer value decline judges the working condition of transfer passage by torque sensor and speed probe joint, then passes through Electronic control unit control 3-position 4-way electromagnetism throttled directional valve to conveying motor commutate, so that transfer passage is reversely transported with Achieve the purpose that block clearing.After block clearing, increased with the torque value decline and rotating speed of the upper roll shaft of conveying and conveying lower roller shaft, electronics Control unit control conveying motor, which carries out commutation, makes transfer passage forward direction transport, when being blocked with reaching sugar-cane cutting machine transfer passage Transfer passage traffic direction automatically controls.
2. the present invention uses 3-position 4-way electromagnetism throttled directional valve, the reversed reduction of speed of two-way quantitative hydraulic motor may be implemented and turn It is dynamic, it is conveyed with reaching transfer passage reversed reduction of speed when sugar-cane cutting machine transfer passage blocks, for ensuring that transfer passage is reversely defeated Speed reduces when sending, and so that transfer passage transfer passage will not be all discharged in sugarcane in channel soon very much because of speed, effectively prevent Transfer passage blocks.
Description of the drawings
Fig. 1 is the operation principle schematic diagram of the anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage of the present invention；
Fig. 2 is structural schematic diagram of the present invention when transfer passage forward direction conveys；
Fig. 3 is structural schematic diagram of the present invention when transfer passage reversely conveys；
Fig. 4 is the electric control principle schematic diagram of the anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage of the present invention.
In figure：1- electronic control units, 2- hydraulic power sources, 3- fuel tanks, 4- 3-position 4-way electromagnetism throttled directional valves, 401- first Electromagnet, the second electromagnet of 402-, 5- two-way quantitative hydraulic motors, 6- output shafts, 7- torque sensors, 8- speed probes, 801- magnet steel, 9- convey upper roller, 10- gears, the upper roll shaft of 11- conveyings, 12- lower gears, 13- conveying lower roller shafts, under 14- is conveyed Roller, 15- racks, 16- bearings, 17-24V Switching Power Supplies.
Specific implementation mode
Technical scheme of the present invention is further described with reference to the accompanying drawings and embodiments.
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only It is a part of the embodiment of the present invention, instead of all the embodiments, based on the embodiments of the present invention, ordinary skill people The every other embodiment that member is obtained without creative efforts, shall fall within the protection scope of the present invention.
As shown in Figures 2 and 3, the anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage of the present invention, it includes by two-way Constant displacement hydraulic motor 5, conveying upper roller 9 and conveying lower roll 14, conveying upper roller 9 and conveying lower roll 14 are separately mounted to convey roll shaft 11 and conveying lower roller shaft 13 on, conveying upper roller 9 and the conveying cooperation of lower roll 14 constitute transfer passage, and roll shaft 11 is by two-way fixed in conveying It measures hydraulic motor 5 to drive, roll shaft 11 and conveying lower roller shaft 13 are mounted on by bearing 16 on holder 15 respectively in conveying, in conveying Roll shaft 11 is by being keyed gear 10, and roll shaft 13 passes through key connection lower gear 12, gear 10 and 12 phase of lower gear in conveying Engagement, gear 10 is identical with 12 number of teeth of lower gear so that it is identical that gear 10 and lower gear 12 may be implemented linear velocity, rotation The opposite motion mode in direction；The output through positive coupling Yu two-way quantitative hydraulic motor 5 respectively of the both ends of torque sensor 7 Axis 6 is connected with the upper roll shaft 11 (can also be changed to conveying lower roller shaft 13) of conveying, is equipped with magnet steel 801, magnetic in conveying on roll shaft 11 Steel 801 is nearby equipped with the speed probe 8 being mounted in rack 15, and speed probe 8 is used to receive the rotating speed of magnet steel, and rotating speed passes The mounting distance of sensor 8 and magnet steel 801 is 1mm；When work, pass through driving conveying 11 band of upper roll shaft of two-way quantitative hydraulic motor 5 Dynamic conveying upper roller 9 and conveying lower roll 14 realize positive and negative rotation campaign, to complete the conveying operations to sugarcane.
As shown in Figure 1 and Figure 4, the anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage of the present invention further includes electronic control Unit 1,3-position 4-way electromagnetism throttled directional valve 4,3-position 4-way electromagnetism throttled directional valve 4 are the prior art, two hydraulic end Mouthful A, B connect with two hydraulic ports C, D of two-way quantitative hydraulic motor 5 respectively, 3-position 4-way electromagnetism throttled directional valve 4 it is another Two hydraulic pressure hydraulic ports P, T connect with hydraulic power source 2 and fuel tank 3 respectively, and 3-position 4-way electromagnetism throttled directional valve 4 is equipped with for cutting Change the first solenoid valve 401 and second solenoid valve 402 of hydraulic channel PA or PB.The signal of torque sensor 7 and speed probe 8 Output end connects with two input ports E, F of electronic control unit 1 respectively, two output ports G, H of electronic control unit 1 Connect respectively with the first solenoid valve 401 and second solenoid valve 402 of 3-position 4-way electromagnetism throttled directional valve 4；Speed probe 8, The first solenoid valve 401 and second solenoid valve of torque sensor 7, electronic control unit 1 and 3-position 4-way electromagnetism throttled directional valve 4 402 connect with Switching Power Supply 17, to obtain working power.
Hydraulic power source 2 of the present invention for entire hydraulic system provides power to drive two-way quantitative hydraulic motor 5 to rotate, from And the upper roll shaft 11 of conveying, conveying lower roller shaft 13, conveying upper roller 9, conveying lower roll 14 is driven to rotate together so that transfer passage is normal Work.
Switching Power Supply 17 of the present invention uses 24V Switching Power Supplies, 24V Switching Power Supplies respectively with speed probe 8, torque Sensor 7, electronic control unit 1, the first electromagnet 401, the second electromagnet 402 are connected by conducting wire, and provide work for it Power supply.
PLC controller may be used in electronic control unit 1 of the present invention, such as siemens PLC CPU224XP DC/ DC/DC PLC1 are set there are two input port E, F and two output ports G, H；The torque sensor 7 may be used dynamic State torque sensor；Hall revolution speed transducer may be used in the speed probe 8.
The torque value T of torque sensor 7 of the present invention1, the velocity amplitude N of the speed probe 81, the electronic control The torque threshold T of unit 10, rotary speed threshold value N0, when transfer passage works normally：T1＜ T0And N1＞ N0, electronic control is single at this time Member 1, which controls 3-position 4-way electromagnetism throttled directional valve 4, makes two-way quantitative hydraulic motor 5 realize rotating forward working condition；Work as transfer passage When blocking：T1≥T0And N1≤N0, at this time electronic control unit 1 automatically control 3-position 4-way electromagnetism throttled directional valve 4 to double It commutates to constant displacement hydraulic motor 5, realizes reversion working condition, to be conveyed when realizing that sugar-cane cutting machine transfer passage blocks Channel traffic direction automatically controls.
Working principle of the present invention is as follows：
1) torque sensor 7 is connect with the input terminal E of electronic control unit 1 by conducting wire so that 7 energy of torque sensor The torque signal of conveying axis (conveying lower roller shaft and the upper roll shaft of conveying, similarly hereinafter) is real-time transmitted to electronic control unit 1；Rotating speed Sensor 8 is connect by conducting wire with the input terminal F of electronic control unit 1 so that speed probe 8 can be by motor output shaft 6 Tach signal be real-time transmitted to electronic control unit 1, as shown in Figure 4；The electricity of the leading-out terminal G of electronic control unit 1 and first Magnet 401 is connected by conducting wire, and the leading-out terminal H of electronic control unit 1 is connect with the second electromagnet 402 by conducting wire so that PLC1 can judge the work feelings of transfer passage according to the torque signal of torque sensor 7, the tach signal joint of speed probe 8 Condition, and 3-position 4-way electromagnetism throttled directional valve 4 is controlled according to actual conditions, two-way quantitative hydraulic motor 5 is further controlled, to Control transfer passage.
2) the A mouths of 3-position 4-way electromagnetism throttled directional valve 4 are connect with the C of two-way quantitative hydraulic motor 5 mouths, 3-position 4-way electricity The B mouths of magnetic throttled directional valve 4 are connect with the D of two-way quantitative hydraulic motor 5 mouths, the T mouths of 3-position 4-way electromagnetism throttled directional valve 4 with Fuel tank 3 passes through piping connection so that 3-position 4-way electromagnetism throttled directional valve 4 can be beaten according to the control signal of electronic control unit 1 The first electromagnet 401 or the second electromagnet 402 are opened to connect PA or PB hydraulic channels, two-way quantitative hydraulic motor 5 is made to realize just Turn, reduction of speed reversion, the switching of the normal work of transfer passage and the block clearing action of reduction of speed reversion is realized, to realize sugarcane harvesting Transfer passage traffic direction automatically controls when machine transfer passage blocks.
3) present invention utilizes defeated in torque sensor 7 and the real-time transfer passage for acquiring sugar-cane cutting machine of speed probe 8 The torque signal and tach signal for sending axis judge the real work feelings of transfer passage based on torque signal and tach signal joint Condition, according to the torque value T of torque sensor 71With the torque threshold T in electronic control unit 1 is set in advance0, speed probe 8 Velocity amplitude N1With the rotary speed threshold value N in electronic control unit 1 is set in advance0Relationship joint judge the work shape of transfer passage State, specifically：Work as T1＜ T0And N1＞ N0When PLC1 generate positive conveying signal and be sent to 3-position 4-way electromagnetism throttled directional valve 4,3-position 4-way electromagnetism throttled directional valve 4 controls two-way quantitative hydraulic motor 5 and rotates forward, to make transfer passage forward direction transport；When T1≥T0And N1≤N0When PLC1 generate reversed conveying signal and be sent to 3-position 4-way electromagnetism throttled directional valve 4,3-position 4-way electricity Magnetic throttled directional valve 4 controls the 5 reduction of speed reversion of two-way quantitative hydraulic motor, to make the reversed reduction of speed transport of transfer passage；
Transfer passage is run when by above-mentioned connection type, setting means to realize that sugar-cane cutting machine transfer passage blocks Direction automatically controls.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is wanted according to right of the present invention Equivalent variations made by asking, still belong to the scope covered by the invention.

Claims (5)

1. a kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage, including driven and realized by two-way quantitative hydraulic motor The conveying upper roller and conveying lower roll of positive and negative rotation, conveying upper roller and conveying lower roll are separately mounted to convey roll shaft and conveying lower roller shaft On, which is characterized in that the system further includes electronic control unit, 3-position 4-way electromagnetism throttled directional valve, torque sensor and turns Fast sensor, two hydraulic ports A, B of 3-position 4-way electromagnetism throttled directional valve, two with two-way quantitative hydraulic motor respectively Hydraulic port C, D connects, another two hydraulic pressure hydraulic port P, T of 3-position 4-way electromagnetism throttled directional valve respectively with hydraulic power source and oil Case connects, and 3-position 4-way electromagnetism throttled directional valve sets that there are two for switching the solenoid valve of hydraulic channel PA or PB；Convey upper roller Mounting magnetic steel and torque sensor on axis or conveying lower roller shaft, speed probe is mounted near magnet steel, for receiving magnet steel Rotating speed；Speed probe, the signal output end of torque sensor are connected with the input terminal of electronic control unit, and electronic control is single The output end of member is connected with the solenoid valve of 3-position 4-way electromagnetism throttled directional valve；Speed probe, torque sensor, electronics control The solenoid valve of unit and 3-position 4-way electromagnetism throttled directional valve processed connects with Switching Power Supply, to obtain working power.
2. a kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage according to claim 1, which is characterized in that described Electronic control unit uses PLC controller；The torque sensor uses dynamic torque sensor；The speed probe uses Hall revolution speed transducer；The Switching Power Supply uses 24V Switching Power Supplies.
3. a kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage according to claim 1 or claim 2, which is characterized in that The torque value T of the torque sensor1, the velocity amplitude N of the speed probe1, the torque threshold of the electronic control unit T0, rotary speed threshold value N0, when transfer passage works normally：T1＜ T0And N1＞ N0, the 3-position 4-way of electronic control unit control at this time Electromagnetism throttled directional valve makes two-way quantitative hydraulic motor realize rotating forward working condition；When transfer passage blocks：T1≥T0And N1≤N0, at this time electronic control unit automatically control 3-position 4-way electromagnetism throttled directional valve and two-way quantitative hydraulic motor changed To, it realizes and inverts working condition, the automatic control of transfer passage traffic direction when to realize that sugar-cane cutting machine transfer passage blocks System.
4. a kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage according to claim 1 or claim 2, which is characterized in that Roll shaft and conveying lower roller shaft are rack-mount by bearing respectively in the conveying, divide on roll shaft and conveying lower roller shaft in conveying The gear being meshed is not installed；The both ends of the torque sensor are respectively through positive coupling and two-way quantitative hydraulic motor Output shaft and the upper roll shaft of conveying or conveying lower roller shaft are connected.
5. a kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage according to claim 1 or claim 2, which is characterized in that The speed probe is mounted in rack, and the mounting distance of speed probe and magnet steel is 1mm.
CN201810184305.0A 2018-03-06 2018-03-06 A kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage Pending CN108506283A (en)

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CN201810184305.0A CN108506283A (en) 2018-03-06 2018-03-06 A kind of anti-blocking electrohydraulic control system of sugar-cane cutting machine transfer passage

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN110609245A (en) * 2019-10-09 2019-12-24 广西思晔自动化科技有限公司 Sugarcane amount micro-magnetic measurement control method and device
CN112042370A (en) * 2019-06-05 2020-12-08 丰疆智能科技股份有限公司 Static pressure drive control system and method of automatic harvester
CN112956331A (en) * 2021-02-02 2021-06-15 农业农村部南京农业机械化研究所 Cabbage harvester
CN113237069A (en) * 2021-06-10 2021-08-10 北京基亚特环保科技有限公司 Slag discharging equipment of household garbage pyrolysis gasification furnace
CN113513513A (en) * 2021-04-16 2021-10-19 三一重型装备有限公司 Hydraulic motor control method, device and system and working vehicle
CN113738717A (en) * 2021-08-26 2021-12-03 广西柳州钢铁集团有限公司 Roll changing cart electro-hydraulic hybrid transmission control method and system

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Publication number Priority date Publication date Assignee Title
CN110506492A (en) * 2019-06-05 2019-11-29 丰疆智能科技研究院(常州)有限公司 Agriculture diced system, hydraulic module and agriculture cutting method
CN112042370A (en) * 2019-06-05 2020-12-08 丰疆智能科技股份有限公司 Static pressure drive control system and method of automatic harvester
CN110609245A (en) * 2019-10-09 2019-12-24 广西思晔自动化科技有限公司 Sugarcane amount micro-magnetic measurement control method and device
CN110609245B (en) * 2019-10-09 2024-02-27 广西思晔自动化科技有限公司 Micro-magnetic measurement control method and device for sugarcane squeezing quantity
CN112956331A (en) * 2021-02-02 2021-06-15 农业农村部南京农业机械化研究所 Cabbage harvester
CN112956331B (en) * 2021-02-02 2022-10-25 农业农村部南京农业机械化研究所 Cabbage harvester
CN113513513A (en) * 2021-04-16 2021-10-19 三一重型装备有限公司 Hydraulic motor control method, device and system and working vehicle
CN113237069A (en) * 2021-06-10 2021-08-10 北京基亚特环保科技有限公司 Slag discharging equipment of household garbage pyrolysis gasification furnace
CN113738717A (en) * 2021-08-26 2021-12-03 广西柳州钢铁集团有限公司 Roll changing cart electro-hydraulic hybrid transmission control method and system
CN113738717B (en) * 2021-08-26 2023-12-29 广西柳州钢铁集团有限公司 System adopting roll changing cart electrohydraulic hybrid transmission control method

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