CN202590945U - Electric branch and leave crusher with automatic control system - Google Patents
Electric branch and leave crusher with automatic control system Download PDFInfo
- Publication number
- CN202590945U CN202590945U CN 201220237650 CN201220237650U CN202590945U CN 202590945 U CN202590945 U CN 202590945U CN 201220237650 CN201220237650 CN 201220237650 CN 201220237650 U CN201220237650 U CN 201220237650U CN 202590945 U CN202590945 U CN 202590945U
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Abstract
The utility model discloses an electric branch and leave crusher with an automatic control system. The electric branch and leave crusher is characterized by comprising the automatic control system which comprises a pressure transmitter, a current transmitter, an approach switch, a programmable controller, a three-position four-way electromagnetic valve and a hydraulic system, wherein the pressure transmitter is arranged at an oil tube connected with a hydraulic motor; the approach switch is arranged at a radial position of a cutter shaft in a cutting mechanism of the branch and leave crusher; and signal output ends of the pressure transmitter, the approach switch and the current transmitter are respectively connected with a signal input end of the programmable controller. A feeding process and a discharging process of the branch and leave crusher are accurately controlled by monitoring the pressure of the hydraulic system, the rotation speed of a cutter and the work current of an asynchronous motor; and the asynchronous motor is effectively protected against being damaged after running for a long time in an over-load state, and the service life of the electric branch and leave crusher is prolonged.
Description
Technical field
The utility model relates to a kind of electronic branches and leaves pulverizer, refers to a kind of electronic branches and leaves pulverizer that has automatic control system especially.
Background technology
Can produce a large amount of branches, leaf the like waste in afforestation, cultivation, the maintenance processes; With these branch trees; The branches and leaves discarded object is collected, and pulverizes back also field, covering, papermaking or use as the fertilizer raw material and all can produce very big economic benefit and environmental benefit.
At present; As the many electronic branches and leaves pulverizers both domestic and external, one of which by frame, compositions such as rack-mounted cutting mechanism, feeding mechanism, discharging mechanism and threephase asynchronous; Take the cutting mechanism action to through controlling threephase asynchronous, carry out branches and leaves and pulverize.
Electronic branches and leaves pulverizer is divided into electronic branches and leaves pulverizer of forced action type charging and the electronic branches and leaves pulverizer of optional formula charging again according to the difference of its feeding manner.Wherein, the electronic branches and leaves pulverizer of forced action type charging adopts manually control mostly, promptly through manual mode control feeding mechanism, carries out charging.
The major defect of this single manual control mode is: the branches and leaves pulverizer is everlasting under the condition of excess load, and is still in running order, causes some unnecessary equipment breakdowns, the service life of having reduced machine; Inefficiency.
The utility model content
In view of the foregoing; The purpose of the utility model has provided a kind of electronic branches and leaves pulverizer that has automatic control system; This electronic branches and leaves pulverizer that has automatic control system can be controlled the operation of electronic branches and leaves pulverizer automatically, improves the operating efficiency of branches and leaves pulverizer.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: a kind of electronic branches and leaves pulverizer with automatic control system; It comprises frame; Rack-mounted cutting mechanism, feeding mechanism, discharging mechanism, threephase asynchronous is characterized in that: this electronic branches and leaves pulverizer also comprises an automatic control system, and this control system comprises pressure transmitter, current transducer, near switch, Programmable Logic Controller, three position four-way electromagnetic valve and hydraulic system;
Said pressure transmitter is installed in the oil pipe place that is connected with hydraulic motor in the said hydraulic system, the pressure of monitoring hydraulic system, and the signal output part of pressure transmitter is connected with a signal input part of said Programmable Logic Controller;
Said current transducer is installed in the switch board, and its signal output part is connected with another signal input part of said Programmable Logic Controller;
Saidly be installed in cutter axis radial position place in the controlled branches and leaves pulverizer cutting mechanism near switch, the rotating speed of monitoring cutterhead, its signal output part is connected with the another input of said Programmable Logic Controller;
Two signal output parts of said Programmable Logic Controller link to each other with two hot-wire coils of said 3-position 4-way solenoid directional control valve respectively, the duty of control hot-wire coil;
Said 3-position 4-way solenoid directional control valve is connected on the said hydraulic system that is used for driving the action of branches and leaves pulverizer feeding mechanism.
Said hydraulic system comprises hydraulic oil container, filter, quantitative gear pump, check valve, overflow valve, flow speed control valve and hydraulic motor;
The delivery outlet of hydraulic oil container is connected with the input port of filter through pipeline; The delivery outlet of this filter is connected with the input port of quantitative gear pump through an oil pipe; The delivery outlet of quantitative gear pump is connected with the oil-in of overflow valve through an oil pipe; The oil-out one tunnel of overflow valve is connected with the oil return opening of hydraulic oil container through oil pipe; Another road is connected with the oil-in of flow speed control valve, and the oil-out of this flow speed control valve links to each other with the oil-in of check valve through oil pipe, and the oil-out of this check valve is connected with the oil-in of said 3-position 4-way solenoid directional control valve by the road;
The first working hole A of said 3-position 4-way solenoid directional control valve is connected with a control mouth of hydraulic motor through oil pipe; The second working hole B of said 3-position 4-way solenoid directional control valve is connected with another control mouth of hydraulic motor through oil pipe;
Hydraulic motor links to each other with the feeding mechanism of controlled branches and leaves pulverizer, drives the feeding mechanism of controlled branches and leaves pulverizer.
This control system also comprises material returned manual operation switch, charging manual operation switch; Said material returned manual operation switch links to each other with another signal input part of Programmable Logic Controller; Said charging manual operation switch links to each other with another signal input part of Programmable Logic Controller.
Description of drawings
Fig. 1 is the utility model control system principle diagram;
Fig. 2 is for constituting the hydraulic system theory diagram of the utility model control system.
The specific embodiment
The disclosed electronic branches and leaves pulverizer that has automatic control system of the utility model comprises frame, rack-mounted cutting mechanism, feeding mechanism, discharging mechanism, threephase asynchronous and automatic control system.This automatic control system is again by pressure transmitter, current transducer, constitute near switch, Programmable Logic Controller, three position four-way electromagnetic valve and hydraulic system.Automatically control control system through to the cutterhead rotating speed in the branches and leaves pulverizer cutting mechanism, be used to drive pressure and the monitoring of electric current that drives the threephase asynchronous of branches and leaves pulverizer cutting mechanism action of the hydraulic system of branches and leaves pulverizer feeding mechanism; Automatically judge the charging situation of branches and leaves pulverizer; Through the Controlled by Programmable Controller hydraulic system; Pass through the feeding mechanism and the cutting mechanism of HYDRAULIC CONTROL SYSTEM branches and leaves pulverizer again; Thereby the duty of control branches and leaves pulverizer avoids the branches and leaves pulverizer under the condition of excess load, and is still in running order; Cause the thing of equipment breakdown to take place, and then improve the operating efficiency and the service life of branches and leaves pulverizer.
Below in conjunction with accompanying drawing the utility model is told about in detail.
As shown in Figure 1, the pressure transmitter that constitutes the utility model automatic control system is installed in the oil pipe place that is connected with hydraulic motor, the pressure of monitoring hydraulic system, and the signal output part 103 of pressure transmitter is connected with an input I7 of Programmable Logic Controller 107;
Current transducer is installed in the switch board, and its signal output part 108 is connected with 107 1 input I8 of Programmable Logic Controller;
Be installed in cutter axis radial position place in the controlled branches and leaves pulverizer cutting mechanism near switch, the rotating speed of monitoring cutterhead, its signal output part 104 is connected with another input I3 of Programmable Logic Controller 107;
Two signal output part OUT1 of Programmable Logic Controller 107, OUT2 control two hot-wire coils 202,201 of 3-position 4-way solenoid directional control valve 200 respectively, and this 3-position 4-way solenoid directional control valve 200 is connected in the hydraulic system.
As shown in Figure 2, formation branches and leaves pulverizer comprises hydraulic oil container 100, filter 300, quantitative gear pump 400, check valve 800, overflow valve 600, flow speed control valve 500 and hydraulic motor 900 with the hydraulic system of control system.The delivery outlet of hydraulic oil container 100 is connected with the input port of filter 300 through pipeline; The delivery outlet of this filter 300 is connected with the input port of quantitative gear pump 400 through an oil pipe; The delivery outlet of quantitative gear pump 400 is connected with the oil-in of overflow valve 600 through an oil pipe; The oil-out one tunnel of overflow valve 600 is connected with the oil return opening of hydraulic oil container 100 through an oil pipe; Another road is connected with the oil-in of flow speed control valve 500, and the oil-out of this flow speed control valve 500 links to each other with the oil-in of a check valve 800 through an oil pipe, and the oil-out of this check valve 800 is connected with the oil inlet P of 3-position 4-way solenoid directional control valve 200 by the road.The first working hole A of 3-position 4-way solenoid directional control valve 200 is connected with a control mouth of hydraulic motor 900 through an oil pipe; The second working hole B is connected with another control mouth of hydraulic motor 900 through an oil pipe; This hydraulic motor 900 links to each other with the feeding mechanism of controlled branches and leaves pulverizer, drives the feeding mechanism of controlled branches and leaves pulverizer.
When electronic branches and leaves pulverizer is worked; Be installed in cutter axis radial position place in the controlled branches and leaves pulverizer cutting mechanism near switch, keep watch on the rotating speed of cutterhead constantly, when abnormal conditions appear in branches and leaves pulverizer cutterhead; When the rotating speed of cutterhead drops to the lower threshold of setting; Give Programmable Logic Controller 107 near switch output signal, through the judgement of its internal processes, the signal output state of Programmable Logic Controller 107 its signal output part of control OUT1, OUT2; Make 201 energisings of 3-position 4-way solenoid directional control valve 200 right side hot-wire coils, left side hot-wire coil 202 no powers; 3-position 4-way solenoid directional control valve 200 spools move to right, and the inlet P of hydraulic system is communicated with the second working hole B and the first working hole A is communicated with liquid return hole T, meanwhile; The second working hole B is communicated with through an oil pipe with a control mouth of hydraulic motor 900 and the first working hole A is communicated with another control mouth of hydraulic motor 900; The liquid that reverse flow is arranged in the hydraulic motor 900, the hydraulic motor antiport, and then drive the feeding mechanism antiport.
After feeding mechanism stopped a period of time, cutterhead was under the effect of external force, and its rotating speed rises gradually; After the rotating speed of cutterhead rises to the upper limit threshold of setting, give Programmable Logic Controller 107 near switch output signal, through the judgement of its internal processes; Left side hot-wire coil 202 energisings of an output point output control signal control 3-position 4-way solenoid directional control valve 200 of Programmable Logic Controller 107; The spool of 3-position 4-way solenoid directional control valve moves to left, and inlet P is communicated with the first working hole A and the second working hole B is communicated with liquid return hole T, and a control mouth of hydraulic motor 900 is communicated with the first working hole A; Simultaneously, another control mouth is communicated with the second working hole B.In the hydraulic motor 900 liquid flow is arranged, hydraulic motor 900 rotates, and drives the feeding mechanism action of branches and leaves pulverizer, the feeding mechanism positive feed.
In actual use; The be everlasting material returned and feed space of the feeding mechanism of branches and leaves pulverizer switches repeatedly; For this reason, the program of Programmable Logic Controller 107 is carried out delay process to the output signal near switch, so that cutterhead has sufficient time to return to the threshold speed upper limit of setting.
When electronic branches and leaves pulverizer is worked; Pressure transmitter 103 is monitored the pressure of hydraulic system constantly, is the pressure of hydraulic system when rising to the upper limit threshold of setting when abnormal conditions occurring, and pressure transmitter outputs signal to Programmable Logic Controller 107; Judgement through its internal processes; The signal output part output control signal of Programmable Logic Controller 107 makes 201 energisings of 3-position 4-way solenoid directional control valve 200 right side hot-wire coils, left side hot-wire coil 202 no powers, and 3-position 4-way solenoid directional control valve 200 spools move to right; The inlet P of hydraulic system is communicated with the second working hole B and the first working hole A is communicated with liquid return hole T; Meanwhile, the second working hole B is communicated with through an oil pipe with a control mouth of hydraulic motor 900 and the first working hole A is communicated with another control mouth of hydraulic motor 900, and the liquid of reverse flow is arranged in the hydraulic motor 900; The hydraulic motor antiport, and then drive the feeding mechanism antiport.
Feeding mechanism is after counter-rotating a period of time; When the pressure of hydraulic system dropped to the lower threshold of setting, pressure transmitter outputed signal to Programmable Logic Controller 107, through the judgement of its internal processes; Left side hot-wire coil 202 energisings of an output point output control signal control 3-position 4-way solenoid directional control valve 200 of Programmable Logic Controller 107; The spool of 3-position 4-way solenoid directional control valve moves to left, and inlet P is communicated with the first working hole A and the second working hole B is communicated with liquid return hole T, and a control mouth of hydraulic motor 900 is communicated with the first working hole A; Simultaneously, another control mouth is communicated with the second working hole B.In the hydraulic motor 900 liquid flow is arranged, hydraulic motor 900 rotates, and drives the feeding mechanism action of branches and leaves pulverizer, the feeding mechanism positive feed.
The output signal of 107 pairs of pressure transmitters of Programmable Logic Controller carries out delay process, so that hydraulic system has sufficient time to delivery system pressure, makes it be reduced to the pressure threshold lower limit of setting.
When electronic branches and leaves pulverizer was worked, current transducer was kept watch on the operating current of asynchronous motor constantly, when abnormal conditions occurring; Be the operating current of asynchronous motor when having surpassed the allowable load of motor, the current transducer signal output part outputs signal to Programmable Logic Controller 107, through the judgement of its internal processes; The signal output part non-output signal of Programmable Logic Controller 107; 3-position 4-way solenoid directional control valve 200 right side hot-wire coils 201 no powers, left side hot-wire coil 202 no powers, 3-position 4-way solenoid directional control valve 200 spools are in meta, and liquid flows back to liquid outlet T from inlet P; And do not flow into hydraulic motor; Therefore no liquid flows in the motor, and motor does not turn round, and branches and leaves pulverizer feeding mechanism is in halted state.
After feed arrangement stopped a period of time, asynchronous motor just was in the no-load running state, and this moment, the operating current of asynchronous motor was in the allowable load scope; The output of current transducer signal output part 108 no signals; Through the judgement of its internal processes, left side hot-wire coil 202 energisings of an output point output control signal control 3-position 4-way solenoid directional control valve 200 of Programmable Logic Controller 107, the spool of 3-position 4-way solenoid directional control valve moves to left; Inlet P is communicated with the first working hole A and the second working hole B is communicated with liquid return hole T; And a control mouth of hydraulic motor 900 is communicated with the first working hole A, and simultaneously, another control mouth is communicated with the second working hole B.In the hydraulic motor 900 liquid flow is arranged, hydraulic motor 900 rotates, and drives the feeding mechanism action of branches and leaves pulverizer, the feeding mechanism positive feed.
The output signal of 107 pairs of current transducers of Programmable Logic Controller carries out delay process, so that hydraulic system has sufficient time to the excessive load of releasing motor, makes it be reduced to the current threshold lower limit of setting.
When electronic branches and leaves pulverizer is in automatic control state; Programmable Logic Controller 107 real-time monitoring pressure transmitters, whether be in below the capping threshold value separately near the monitored value of switch and current transducer; In case abnormal conditions occur; The automatic output control signal, control hydraulic system, and then the action of the feeding mechanism of control branches and leaves pulverizer.
For abnormal conditions are handled timely and effectively, except above-mentioned automatic control function, the utility model also is provided with manual control function.As shown in Figure 1, the utility model also comprises material returned manual operation switch 106, charging manual operation switch 105.Material returned manual operation switch 106 links to each other with the signal input part I 1 of Programmable Logic Controller 107; Charging manual operation switch 105 links to each other with the signal input part I2 of Programmable Logic Controller 107.
In case manual function works, be in priority status with the corresponding operation of this manual function, i.e. the manually preferential control automatically of control, this principle is through the inner program setting of Programmable Logic Controller.
The utility model can also be controlled feeding mechanism, the cutting mechanism of branches and leaves pulverizer through manual mode except that can controlling branches and leaves pulverizer feeding mechanism, cutting mechanism automatically.
Two outputs of left side hot-wire coil 202, right side hot-wire coil 201 Programmable Logic Controllers itself that two outputs of Programmable Logic Controller itself correspond respectively to 3-position 4-way solenoid directional control valve 200 in the program set inside interlocking; Therefore, guaranteed that the left side hot-wire coil 202 of 3-position 4-way solenoid directional control valve 200, right side hot-wire coil 201 can not work simultaneously.
The advantage of the utility model:
1, the utility model can be controlled charging, material returned process and the repeatedly material returned, charging cut-and-try process exactly through the monitoring to the operating current of pressure, cutterhead rotating speed and the asynchronous motor of hydraulic system;
2, monitor the rotating speed of cutterhead, the pressure of hydraulic system exactly, and the operating current of asynchronous motor, the operating efficiency of branches and leaves pulverizer is improved greatly; Protect asynchronous motor can not cause destruction effectively, prolong the service life of machine at long-play under the over burdening to motor.
3, the utility model can be realized the automatic control of branches and leaves pulverizer and manually control, and it is preferential manually to control function, to handle the generation of fortuitous event.
The above is specific embodiment of the present invention and the know-why used, and is any based on the equivalent transformation on the technical scheme of the present invention basis, all belongs within the protection domain of the present invention.
Claims (3)
1. electronic branches and leaves pulverizer with automatic control system; It comprises frame; Rack-mounted cutting mechanism, feeding mechanism, discharging mechanism, threephase asynchronous; It is characterized in that: this electronic branches and leaves pulverizer also comprises an automatic control system, and this control system comprises pressure transmitter, current transducer, near switch, Programmable Logic Controller, three position four-way electromagnetic valve and hydraulic system;
Said pressure transmitter is installed in the oil pipe place that is connected with hydraulic motor in the said hydraulic system, the pressure of monitoring hydraulic system, and the signal output part of pressure transmitter is connected with a signal input part of said Programmable Logic Controller;
Said current transducer is installed in the switch board, and its signal output part is connected with another signal input part of said Programmable Logic Controller;
Saidly be installed in cutter axis radial position place in the controlled branches and leaves pulverizer cutting mechanism near switch, the rotating speed of monitoring cutterhead, its signal output part is connected with the another input of said Programmable Logic Controller;
Two signal output parts of said Programmable Logic Controller link to each other with two hot-wire coils of said 3-position 4-way solenoid directional control valve respectively, the duty of control hot-wire coil;
Said 3-position 4-way solenoid directional control valve is connected on the said hydraulic system that is used for driving the action of branches and leaves pulverizer feeding mechanism.
2. the electronic branches and leaves pulverizer of band automatic control system according to claim 1, it is characterized in that: said hydraulic system comprises hydraulic oil container, filter, quantitative gear pump, check valve, overflow valve, flow speed control valve and hydraulic motor;
The delivery outlet of hydraulic oil container is connected with the input port of filter through pipeline; The delivery outlet of this filter is connected with the input port of quantitative gear pump through an oil pipe; The delivery outlet of quantitative gear pump is connected with the oil-in of overflow valve through an oil pipe; The oil-out one tunnel of overflow valve is connected with the oil return opening of hydraulic oil container through oil pipe; Another road is connected with the oil-in of flow speed control valve, and the oil-out of this flow speed control valve links to each other with the oil-in of check valve through oil pipe, and the oil-out of this check valve is connected with the oil-in of said 3-position 4-way solenoid directional control valve by the road;
The first working hole A of said 3-position 4-way solenoid directional control valve is connected with a control mouth of hydraulic motor through oil pipe; The second working hole B of said 3-position 4-way solenoid directional control valve is connected with another control mouth of hydraulic motor through oil pipe;
Hydraulic motor links to each other with the feeding mechanism of controlled branches and leaves pulverizer, drives the feeding mechanism of controlled branches and leaves pulverizer.
3. the electronic branches and leaves pulverizer of band automatic control system according to claim 2 is characterized in that: this control system also comprises material returned manual operation switch, charging manual operation switch; Said material returned manual operation switch links to each other with another signal input part of Programmable Logic Controller; Said charging manual operation switch links to each other with another signal input part of Programmable Logic Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237650 CN202590945U (en) | 2012-05-24 | 2012-05-24 | Electric branch and leave crusher with automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237650 CN202590945U (en) | 2012-05-24 | 2012-05-24 | Electric branch and leave crusher with automatic control system |
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| Publication Number | Publication Date |
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| CN202590945U true CN202590945U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220237650 Expired - Lifetime CN202590945U (en) | 2012-05-24 | 2012-05-24 | Electric branch and leave crusher with automatic control system |
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| CN (1) | CN202590945U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861720A (en) * | 2014-03-20 | 2014-06-18 | 湖州市千金宝云机械铸件有限公司 | Vertical pulverizer for grinding ultrafine powder |
| CN105818237A (en) * | 2016-04-29 | 2016-08-03 | 常州汉森机械有限公司 | Wood grinder |
| CN108654789A (en) * | 2018-06-27 | 2018-10-16 | 江阴双马重工装备有限公司 | A kind of ladle prebreaker hydraulic control system |
| CN111034581A (en) * | 2019-12-30 | 2020-04-21 | 长沙中能装备制造有限公司 | Branch chopper |
| CN111729753A (en) * | 2020-06-09 | 2020-10-02 | 广东一鼎科技有限公司 | Automatic recovery device for hydraulic roller press closed car |
-
2012
- 2012-05-24 CN CN 201220237650 patent/CN202590945U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861720A (en) * | 2014-03-20 | 2014-06-18 | 湖州市千金宝云机械铸件有限公司 | Vertical pulverizer for grinding ultrafine powder |
| CN103861720B (en) * | 2014-03-20 | 2015-10-28 | 湖州市千金宝云机械铸件有限公司 | The vertical crusher of grinding superfine powder |
| CN105818237A (en) * | 2016-04-29 | 2016-08-03 | 常州汉森机械有限公司 | Wood grinder |
| CN108654789A (en) * | 2018-06-27 | 2018-10-16 | 江阴双马重工装备有限公司 | A kind of ladle prebreaker hydraulic control system |
| CN111034581A (en) * | 2019-12-30 | 2020-04-21 | 长沙中能装备制造有限公司 | Branch chopper |
| CN111034581B (en) * | 2019-12-30 | 2022-02-08 | 长沙中能装备制造有限公司 | Branch chopper |
| CN111729753A (en) * | 2020-06-09 | 2020-10-02 | 广东一鼎科技有限公司 | Automatic recovery device for hydraulic roller press closed car |
| CN111729753B (en) * | 2020-06-09 | 2022-02-22 | 广东一鼎科技有限公司 | Automatic recovery device for hydraulic roller press closed car |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
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| CX01 | Expiry of patent term |