CN206051388U - A kind of furnace top hydraulic stock rod - Google Patents
A kind of furnace top hydraulic stock rod Download PDFInfo
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- CN206051388U CN206051388U CN201621028279.5U CN201621028279U CN206051388U CN 206051388 U CN206051388 U CN 206051388U CN 201621028279 U CN201621028279 U CN 201621028279U CN 206051388 U CN206051388 U CN 206051388U
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- stock rod
- furnace top
- hydraulic
- oil
- drive mechanism
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Abstract
This utility model is related to a kind of furnace top hydraulic stock rod, including material hammer, the material hammer is connected with the drive mechanism for driving which to move up and down, the drive mechanism is connected with the hydraulic motor for driving its transmission, the hydraulic motor is connected with the proportional reversing valve for controlling its rotation direction and rotating speed, further, the measurement apparatus of material position high and low position detection are additionally provided with the drive mechanism.The control of furnace top hydraulic stock rod adoption rate reversal valve travel direction and flow that this utility model is provided, realizes the up and down motion of material hammer by fluid motor-driven drive mechanism, so as to complete the measurement of material position and monitor in real time during blast furnace ironmaking；Further, furnace top hydraulic stock rod employs the technologies such as hydraulic-driven, flow velocity control, closed loop system, with low cost, debug it is convenient, operate steadily, it is safe and reliable, save environmental protection the features such as.
Description
Technical field
This utility model is related to a kind of measurement apparatus, and in particular to a kind of blast furnace roof that is arranged on is used to detect charge level in stove
The hydraulic pressure stock rod of height.
Background technology
The detection of material position height when furnace roof stock rod is mainly used in blast furnace ironmaking, by driving means and material hammer cylinder and speed
Control unit is constituted.At present, in blast furnace ironmaking stock rod system, it is common to use electric sounding rod, i.e., reductor is driven by motor
Cylinder is driven, so that the steel wire rope being wound on cylinder drives material hammer to move up and down completes material-level measure, electric sounding rod is adopted
The mode of Frequency Converter Control speed carries out the detection of blast furnace level.
However, electric sounding rod needs converter vector controlled to be carried out to motor, there is following defect：1st, electric sounding rod debugging is tired
It is difficult.Due to be controlled to vector controlled of the converter to motor, (vector controlled is that the Current Decomposition that will load on stator is hung down for two
Straight vector, i.e. exciting current and rotor current, and AC asynchronous motor is controlled using hvdc control mode is encouraged), tuning parameter
There are the up to up to a hundred parameters such as voltage, electric current, torque, rotating speed, stator parameter, rotor parameter, excitation parameter, debugging control is very
It is difficult；2nd, electric sounding rod is using unstable.Change of the vector controlled to loading moment is more sensitive, it is actually used during material hammer
Belong to expendable part, its weight is larger because burning floating, and material hammers the change that the change of weight will cause downward drag torque to load into shape,
After drive system long time running, the pollution of its lubricating oil and gear wear etc. also produce impact to load simultaneously, and this results in electricity
Dynamic stock rod is using unstable；3rd, wire cable rupture.Electric sounding rod adopts reducer with big speed ratio, and its braking moment is larger and adopts firm
Property braking, the braking under running up is easily caused wire cable rupture；4th, electric sounding rod operating cost is big.Electric sounding rod reductor
Using thin oil lubricant, need thin oil system persistently to injection thin oil in decelerating chassis body and by the recovery of unnecessary thin oil, which uses process
The consumption of middle lubricating oil and electric energy is huge；5th, electric sounding rod input is big.Electric sounding rod using variable-frequency governor, buncher, subtract
Fast machine simultaneously needs thin oil lubricating equipment input big.
Utility model content
The purpose of this utility model is the shortcoming for overcoming above-mentioned prior art, there is provided a kind of low cost, debugging convenience, peace
Full reliability, the furnace top hydraulic stock rod for operating steadily.
To reach above-mentioned purpose, this utility model is adopted the following technical scheme that：
A kind of furnace top hydraulic stock rod, including material hammer, the material hammer are connected with the drive mechanism for driving which to move up and down, described
Drive mechanism is connected with the hydraulic motor for driving its transmission, and the hydraulic motor is changed with the ratio for controlling its rotation direction and rotating speed
It is connected to valve, further, on the drive mechanism, is additionally provided with the measurement apparatus of material position high and low position detection.
Further, furnace top hydraulic stock rod controls PLC in also including blast furnace, controls PLC commutate with ratio in the blast furnace respectively
Valve and measurement apparatus electrical connection.
Further, the drive mechanism includes cylinder, lay winding wire ropes on cylinder, described in the end connection of steel wire rope
Material hammer, the cylinder are connected with hydraulic motor by drum shaft, and the measurement apparatus are on the drum shaft of cylinder.
Further, steel wire rope groove is provided with the outer circumference surface of cylinder, the steel wire rope one ends wound is in steel wire rope groove
In, other end binder hammer.
Further, the steel wire rope is substituted using chain.
Further, the hydraulic motor is provided with and carries chi oil-in A, braking oil-in B and put chi oil-in C；It is described
Carry chi oil-in A and braking oil-in B is communicated with proportional reversing valve, put chi oil-in C and communicate with fuel tank.
Further, the measurement apparatus are encoder.
Compared with prior art, this utility model has the advantages that：
The furnace top hydraulic stock rod that this utility model is provided adopts fluid motor-driven drive mechanism, passing ratio reversal valve reality
The forward direction of existing hydraulic motor, reverse rotation, braking and the control of speed, complete to expect putting chi, carrying chi and material-level measure action for hammer,
Easy to use, safety.The control of speed is carried out by the flow-control of adoption rate reversal valve, load change has been cut off to speed
Impact, make hydraulic pressure stock rod operate steadily, and the proportional reversing valve for being adopted only need adjust two analog input parameters, debugging
It is convenient；In addition, this utility model substitutes the originals such as frequency-variable controller, buncher, reductor using the existing hydraulic system of furnace roof
Part, greatly reduces operation and the input cost of stock rod, and by braking using flexible hydraulic, reduces what wire cable rupture was caused
Device damage and accident.Further, plugging power consumption is eliminated using the traction downwards of material hammer comprehensively, standby position is incompetent
Amount loss.
Further, PLC is controlled in furnace top hydraulic stock rod adoption rate reversal valve, hydraulic motor, measurement apparatus and blast furnace (high
It is blast furnace existing equipment that PLC is controlled in stove) closed loop control is realized, the data input for detecting is controlled in blast furnace by measurement apparatus
PLC, in blast furnace control PLC according to input parameter calculate output to proportional reversing valve a, b ends data, proportional reversing valve according to
A, b end data controls the flow of hydraulic oil, and then the rotating speed of control hydraulic motor, so as to realize the real-time closed-loop control of stock rod speed
System, can improve control accuracy.
Description of the drawings
Fig. 1 is this utility model hydraulic pressure stock rod structural representation；
Wherein：1 it is proportional reversing valve, 2 be hydraulic motor, 3 be cylinder, 4 be measurement apparatus, 5 enters to carry chi for material hammer, A
Hydraulic fluid port, B are to put chi oil-in for braking oil-in, C.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail：
Referring to Fig. 1, a kind of furnace top hydraulic stock rod, including cylinder 3, lay winding wire ropes on the cylinder 3, the end of steel wire rope
Binder hammer 5, the cylinder 3 is connected with hydraulic motor 2 by drum shaft, the hydraulic motor 2 and its rotation direction of control and
The proportional reversing valve 1 of rotating speed is connected, and further, the measurement apparatus that the number of turns is rotated for measurement cylinder 3 is additionally provided with drum shaft
4, the proportional reversing valve 1 and measurement apparatus 4 also respectively with PLC is controlled in blast furnace electrically connect, in blast furnace, control PLC is by measurement apparatus 4
Gathered data is input to proportional reversing valve 1 after calculating, form closed loop control, can improve control accuracy.On hydraulic motor 2 further
It is provided with and carries chi oil-in A, braking oil-in B and put chi oil-in C, carries chi oil-in A and braking oil-in B and proportional reversing valve
1 communicates, and puts chi oil-in C and communicates with fuel tank.Further, steel wire rope groove, the steel wire are provided with the outer circumference surface of cylinder 3
In steel wire rope groove, other end binder hammers 5 into shape to rope one ends wound, and the steel wire rope can be substituted using chain.Further, it is described
Measurement apparatus 4 are encoder.
Operation principle：When putting chi, proportion electro-magnet a end input signals of the PLC to proportional reversing valve 1, pressure in blast furnace, are controlled
Oil enters braking oil-in B through proportional reversing valve 1 by P mouths, and the braking of hydraulic motor 2 is opened, and material hammer 5 is under Gravitative Loads
Cylinder 3 and hydraulic motor 2 is driven to rotate, now the chi oil-in C of putting of hydraulic motor 2 passes through fuel tank oil suction, carries chi oil-in A and leads to
1 oil return of proportional reversing valve is crossed, the flow of oil return is believed to the input at 1 proportion electro-magnet a ends of proportional reversing valve by PLC is controlled in blast furnace
Number controlling, chi oil-in A return flows are carried by control and realizes putting the control of chi speed, after material hammer 5 contacts charge level, downwards
Pull strength disappears, and cylinder 3 and hydraulic motor 2 stop operating, material-level measure success.
During material position real-time detection, PLC is controlled in blast furnace and continues input signal, material to the proportion electro-magnet a ends of proportional reversing valve 1
Hammer 5 will follow charge level to complete real-time monitoring action.After reaching setting position, the input signal at proportion electro-magnet a ends disconnects, and carries chi
Oil-in A, braking oil-in B oil circuits are cut off, and brake, stock rod stop real-time detection；
When carrying chi, proportion electro-magnet b end input signals of the PLC to proportional reversing valve 1 in blast furnace, is controlled, pressure oil passes through P mouths
Enter through proportional reversing valve 1 and carry chi oil-in A and braking oil-in B, the braking of hydraulic motor 2 is opened, and is carrying chi oil-in A
In the presence of pressure oil, hydraulic motor 2 and cylinder 3 rotate backward and start to carry chi, and now hydraulic oil is returned to by putting chi oil-in C
Fuel tank, the control for carrying chi oil-in A flows are controlled by the signal for being input into proportion electro-magnet b ends, so as to realize putting forward chi speed
Control, the signal that proportion electro-magnet b ends are input into after reaching position of readiness disconnect, and carry chi oil-in A, the oil circuit of braking oil-in B
It is cut off, brake stock rod stops, into standby.
The closed loop control of furnace top hydraulic stock rod is made up of control PLC in proportional reversing valve 1, hydraulic motor 2, encoder and blast furnace
(it is blast furnace existing equipment that PLC is controlled in blast furnace), encoder is input to the speed of the cylinder 3 for detecting in blast furnace and controls PLC, blast furnace
Middle control PLC according to speed |input paramete calculate output to proportional reversing valve 1 a, b end data, proportional reversing valve 1 according to a,
B end datas control hydraulic fluid flow rate, and hydraulic fluid flow rate size controls the rotating speed of hydraulic motor 2, so as to realize the reality of stock rod speed
When closed loop control.
In sum, this utility model is provided furnace top hydraulic stock rod adoption rate reversal valve 1 travel direction and flow
Control, drives cylinder 3 to realize the up and down motion of material hammer 5 by hydraulic motor 2, so as to complete during blast furnace ironmaking the measurement of material position and
Monitor in real time；Further, furnace top hydraulic stock rod employs the technologies such as hydraulic-driven, flow velocity control, closed loop control, has
Low cost, debug it is convenient, operate steadily, it is safe and reliable, save environmental protection the features such as.
Claims (7)
1. a kind of furnace top hydraulic stock rod, it is characterised in that：Including material hammer (5), material hammer (5) and the biography for driving which to move up and down
Motivation structure connect, the drive mechanism with drive its transmission hydraulic motor (2) be connected, the hydraulic motor (2) and control its
Rotation direction is connected with the proportional reversing valve (1) of rotating speed, further, the inspection of material position high and low position is additionally provided with the drive mechanism
The measurement apparatus (4) of survey.
2. a kind of furnace top hydraulic stock rod as claimed in claim 1, it is characterised in that：PLC, the blast furnace are controlled in also including blast furnace
Middle control PLC is electrically connected with proportional reversing valve (1) and measurement apparatus (4) respectively.
3. a kind of furnace top hydraulic stock rod as claimed in claim 1, it is characterised in that：The drive mechanism includes cylinder (3), rolling
Lay winding wire ropes on cylinder (3), the material that the end connection of steel wire rope is described hammer (5) into shape, and the cylinder (3) is by drum shaft and hydraulic pressure horse
It is connected up to (2), the measurement apparatus (4) are on the drum shaft of cylinder (3).
4. a kind of furnace top hydraulic stock rod as claimed in claim 3, it is characterised in that：It is provided with the outer circumference surface of cylinder (3)
Steel wire rope groove, in steel wire rope groove, other end binder hammers (5) into shape to the steel wire rope one ends wound.
5. a kind of furnace top hydraulic stock rod as claimed in claim 3, it is characterised in that：The steel wire rope is substituted using chain.
6. a kind of furnace top hydraulic stock rod as claimed in claim 1, it is characterised in that：The hydraulic motor (2) is provided with and carries chi
Oil-in (A), braking oil-in and put chi oil-in (C) at (B)；It is described to put forward chi oil-in (A) and braking oil-in (B) and ratio
Reversal valve (1) is communicated, and is put chi oil-in (C) and is communicated with fuel tank.
7. a kind of furnace top hydraulic stock rod as claimed in claim 1, it is characterised in that：The measurement apparatus (4) are encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028279.5U CN206051388U (en) | 2016-08-31 | 2016-08-31 | A kind of furnace top hydraulic stock rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028279.5U CN206051388U (en) | 2016-08-31 | 2016-08-31 | A kind of furnace top hydraulic stock rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206051388U true CN206051388U (en) | 2017-03-29 |
Family
ID=58374522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621028279.5U Active CN206051388U (en) | 2016-08-31 | 2016-08-31 | A kind of furnace top hydraulic stock rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN206051388U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115522A (en) * | 2016-08-31 | 2016-11-16 | 中钢集团西安重机有限公司 | A kind of furnace roof stock rod hydraulic control device and method |
| CN106315438A (en) * | 2016-10-31 | 2017-01-11 | 中钢集团西安重机有限公司 | Furnace top stock rod hydraulic control device and method |
| CN107298401A (en) * | 2017-08-08 | 2017-10-27 | 无锡宝宏船舶机械有限公司 | Possesses the hoist engine of suspension hook supervising device |
-
2016
- 2016-08-31 CN CN201621028279.5U patent/CN206051388U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115522A (en) * | 2016-08-31 | 2016-11-16 | 中钢集团西安重机有限公司 | A kind of furnace roof stock rod hydraulic control device and method |
| CN106115522B (en) * | 2016-08-31 | 2018-11-23 | 中钢集团西安重机有限公司 | A kind of furnace roof stock rod hydraulic control device and method |
| CN106315438A (en) * | 2016-10-31 | 2017-01-11 | 中钢集团西安重机有限公司 | Furnace top stock rod hydraulic control device and method |
| CN107298401A (en) * | 2017-08-08 | 2017-10-27 | 无锡宝宏船舶机械有限公司 | Possesses the hoist engine of suspension hook supervising device |
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