CN104511344A - Impact crusher outlet material jam monitoring method and used speed measuring apparatus - Google Patents
Impact crusher outlet material jam monitoring method and used speed measuring apparatus Download PDFInfo
- Publication number
- CN104511344A CN104511344A CN201310443957.9A CN201310443957A CN104511344A CN 104511344 A CN104511344 A CN 104511344A CN 201310443957 A CN201310443957 A CN 201310443957A CN 104511344 A CN104511344 A CN 104511344A
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- CN
- China
- Prior art keywords
- speed
- impact breaker
- tachogenerator
- drive shaft
- belt drive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/31—Safety devices or measures
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an impact crusher outlet material jam monitoring method and a used speed measuring apparatus. The method judges whether materials are jammed in the outlet of an impact crusher through monitoring the rotation speed of the belt transmission shaft of the impact crusher. According to the normal rotation speed (NZ) of the belt transmission shaft of an impact crusher, a critical rotation speed (NL) is set; when the actual rotation speed (NS) of the belt transmission shaft is slower than the critical rotation speed (NL), people can judge that the materials are jammed in the outlet of the impact crusher, the impact crusher should be stopped and then the outlet of the impact crusher should be cleaned. The provided monitoring method solves the problem that a monitoring device cannot be installed in the outlet of an impact crusher and can judge whether the outlet of an impact crusher is jammed or not by monitoring the rotation speed of the belt transmission shaft. The jamming monitoring can be achieved by installing a simple device, the idea is smart, the equipment modification is easy, the inner of an impact crusher is not changed, the modification can be completed by just installing a speed measuring apparatus on the impact crusher, the modification cost is low, and at the same time the impact crusher is well protected.
Description
Technical field
the present invention relates to the monitoring method of a kind of impact breaker outlet putty and speed measuring device used, belong to impact breaker security protection technology field.
Background technology
at metallurgy industry, after many raw materials need impact breaker to carry out granularity that fragmentation reaches certain, carry out next step the operation such as batch mixing, proportioning again.Such as in the cathode and anode charcoal element forming process of electrolgtic aluminium, the anode scrap charcoal block crossed by electrolgtic aluminium is just needed to carry out fragmentation, then anode scrap broken material and petroleum coke being forged rear material, pitch etc., to carry out proportioning, batch mixing then shaping, make new charcoal block, as the electrode material of electrolysis of aluminum oxide after roasting.
by in anode scrap carbon block smashing process, sometimes because anode scrap charcoal block diameter is excessive, or anode scrap charcoal block makes moist and will block the discharging opening of impact breaker, anode scrap particle after fragmentation cannot normally be discharged, not only affect normal production procedure, even damage the internal structure of impact breaker, cause the accident.Can by the impact of particle when discharging opening due to impact breaker normally works, cannot installation detecting device, even if installed, service life is also very short, is broken soon by particle, loses detection effect.Therefore impact breaker outlet putty problem is affect the technical barrier that impact breaker normally uses always.
Summary of the invention
the object of the invention is to, the monitoring method providing a kind of impact breaker to export putty and speed measuring device used, Real-Time Monitoring can be carried out to impact breaker outlet, can Timeliness coverage when there is putty, timely eliminating, avoid the internal structure damaging impact breaker, impact is normally produced.
technical scheme of the present invention:
the monitoring method of impact breaker outlet putty, the method judges whether impact breaker outlet putty occurs by the rotating speed of monitoring impact breaker belt drive shaft; The rotating speed N of belt drive shaft when normally running according to impact breaker
z
, setting critical speed N
l
; As the actual speed N of belt drive shaft
s
lower than critical speed N
l
time then judge impact breaker outlet occur putty, namely shut down to impact breaker outlet clear up.
in aforementioned monitoring method, the rotating speed of described monitoring impact breaker belt drive shaft be on belt drive shaft, weld one piece of boss or on belt drive shaft milling groove as inductor, above inductor, tachogenerator is installed simultaneously, belt drive shaft often rotates one week, tachogenerator sends a pulse, records the actual speed N of belt drive shaft according to the umber of pulse sent in the unit interval
s
, actual speed N
s
deliver to transmitter display of testing the speed, by the actual speed N of operating personnel's real time monitoring belt drive shaft
s
, as discovery actual speed N
s
lower than critical speed N
l
time disconnect impact breaker power supply by operating personnel, to impact breaker outlet clear up.
in aforementioned monitoring method, described actual speed N
s
while delivering to transmitter display of testing the speed, also deliver to the display of control system host computer, be provided with rotating speed comparison program in control system, as the actual speed N that control system receives
s
lower than the critical speed N being kept at control system host computer
l
time, control system host computer sends alarm signal, and impact breaker power supply is cut off in automatic interlock, then is cleared up impact breaker outlet by operating personnel.
the speed measuring device used according to aforementioned monitoring method, comprises the inductor be located on impact breaker power transmission shaft, and inductor side is provided with tachogenerator, and tachogenerator is electrically connected with the transmitter that tests the speed.
in aforementioned speed measuring device, on the power transmission shaft of described inductor between impact breaker and bearing block; The tachogenerator of inductor side is connected through the housing of mounting bracket with impact breaker side.
in aforementioned speed measuring device, described tachogenerator is electrically connected with test the speed transmitter and control system, and be provided with rotating speed comparison program in control system, the electric power system of rotating speed comparison program and impact breaker is interlocked.
in aforementioned speed measuring device, described inductor is the metal bosses be welded on power transmission shaft, and probe and the boss distance from top of tachogenerator are less than 3mm.
in aforementioned speed measuring device, described inductor is the groove be located on power transmission shaft, and probe and the recess edge distance of tachogenerator are less than 3mm.
compared with prior art, by the rotating speed of monitoring impact breaker belt drive shaft, the present invention judges whether impact breaker outlet the method for putty occurs, well solve the difficult problem cannot installing monitoring device in impact breaker outlet, indirectly reach the monitoring problem of monitoring impact breaker outlet putty; The method achieves the monitoring of putty by simple device, is skillfully constructed, and scrap build is easy, and without the need to carrying out inside transformation to impact breaker, only need to increase a speed measuring device outward at impact breaker and just deal with problems, improvement cost is low.When impact breaker generation putty, can Timeliness coverage, process in time, after can preventing putty, impact breaker works on, and damages impact breaker internal structure or burns drive motors.
Accompanying drawing explanation
fig. 1 is the structural representation of the embodiment of the present invention 1;
fig. 2 is the structural representation of the embodiment of the present invention 2.
being labeled as in accompanying drawing: 1-impact breaker, 2-mounting bracket, 3-tachogenerator, 4-test the speed transmitter, 5-inductor, 6-bearing block, 7-belt pulley, 8-pulley cover, 9-bearing block basis.
Detailed description of the invention
below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
a monitoring method for impact breaker outlet putty, the method judges that impact breaker 1 exports by the rotating speed of monitoring impact breaker belt drive shaft whether putty to occur; The rotating speed N of belt drive shaft when normally running according to impact breaker
z
, setting critical speed N
l
; As the actual speed N of belt drive shaft
s
lower than critical speed N
l
time then judge impact breaker outlet occur putty, namely shut down to impact breaker outlet clear up.The rotating speed of described monitoring impact breaker belt drive shaft be on belt drive shaft, weld one piece of boss or on belt drive shaft milling groove as inductor 5, above inductor 5, tachogenerator 3 is installed simultaneously, belt drive shaft often rotates one week, tachogenerator 3 sends a pulse, records the actual speed N of belt drive shaft according to the umber of pulse sent in the unit interval
s
, actual speed N
s
deliver to the transmitter 4 that tests the speed to show, by the actual speed N of operating personnel's real time monitoring belt drive shaft
s
, as discovery actual speed N
s
lower than critical speed N
l
time disconnect impact breaker power supply by operating personnel, to impact breaker outlet clear up.Described actual speed Ns also can deliver to the display of control system host computer, be provided with rotating speed comparison program, as the actual speed N that control system receives in control system while delivering to transmitter display of testing the speed
s
lower than the critical speed N being kept at control system setting
l
time, control system host computer sends alarm signal, and impact breaker power supply is cut off in automatic interlock, then by operating personnel, impact breaker outlet is cleared up.
the speed measuring device used according to aforementioned monitoring method, as depicted in figs. 1 and 2.Comprise the inductor 5 be located on impact breaker 1 power transmission shaft, inductor 5 side is provided with tachogenerator 3, and tachogenerator 3 is electrically connected with the transmitter 4 that tests the speed.On the power transmission shaft of described inductor 5 between impact breaker 1 and bearing block 6; The tachogenerator 3 of inductor 5 side is connected through the housing of mounting bracket 2 with impact breaker 1 side.Described tachogenerator 3 is electrically connected with test the speed transmitter 4 and control system host computer, and be provided with rotating speed comparison program in control system, the electric power system of rotating speed comparison program and impact breaker 1 is electrically connected.Described inductor 5 is the metal bosses be welded on power transmission shaft, and probe and the boss distance from top of tachogenerator 3 are less than 3mm.Described inductor 5 is the grooves be located on power transmission shaft, and probe and the recess edge distance of tachogenerator 3 are less than 3mm.
embodiment 1
as shown in Figure 1, impact breaker 1 is arranged on flooring base; Bearing block 6 is fixed on bearing block basis 9; Belt pulley 7 is as a whole with bearing block 6, and belt pulley 7 Lower Half has pulley cover 8; Above the power transmission shaft of impact breaker 1 sidepiece, mounting bracket 2, mounting bracket 2 is installed tachogenerator 3; Power transmission shaft immediately below the probe of tachogenerator 3 welds inductor 5, and inductor 5 is column structure, and diameter is 1cm, and height is 1cm; For ensureing certainty of measurement, require that tachogenerator 3 induction point distance inductor 5 top of popping one's head in is less than 3mm, tachogenerator 3 is connected by cable and to test the speed transmitter 4.
embodiment 2
as shown in Figure 2, impact breaker 1 is arranged on flooring base; Bearing block 6 is fixed on bearing block basis 9; Belt pulley 7 is as a whole with bearing block 6, and belt pulley 7 Lower Half has pulley cover 8; Above the power transmission shaft of impact breaker 1 sidepiece, mounting bracket 2, mounting bracket 2 is installed tachogenerator 3; Power transmission shaft immediately below the probe of tachogenerator 3 is milled with groove as inductor 5, groove length is 5cm, and the degree of depth is 3mm, and width is 5mm, in order to ensure certainty of measurement, tachogenerator 3 pop one's head in induction point distance power transmission shaft be less than 3mm; Tachogenerator 3 connects by cable test the speed transmitter 4 and control system host computer, and the control output of control system host computer is connected with the electric power system of impact breaker 1.
operation principle of the present invention
impact breaker carries out work by belt transmission, belt drive shaft is at the uniform velocity to rotate under normal circumstances, if anode scrap charcoal block diameter is large or make moist when causing putty, the rotating speed of belt drive shaft can be obviously slack-off, a critical speed can be set according to the duty of impact breaker and use experience, when the actual speed of power transmission shaft is greater than critical speed, can thinks that impact breaker is normal operating conditions, putty does not occur.When the actual speed of power transmission shaft is less than critical speed, can thinks that impact breaker putty occurs, with regard to hard stop, clear up.Therefore by the rotating speed of monitoring impact breaker belt drive shaft, the present invention judges that impact breaker 1 exports and whether putty occurs has scientific basis.But in impact breaker start-up course; rotating speed improves gradually; so start-up course can disconnect the connection of tachogenerator 3 and control system; only show rotating speed; impact breaker is not controlled, when rotating speed is normal, then the connection of connection and control system; when there is putty, automatically can be controlled to shut down by control system.The present invention, except display rotating speed, can also carry out acoustical alarm by installing warning device, when abnormal, operating personnel can be reminded to note observing the discharging situation of rotating speed and impact breaker.
the present invention utilizes pulse theory to test the speed, and namely belt drive shaft rotates and produces a pulse in, and the umber of pulse in the unit interval is rotating speed.Due to belt drive shaft smooth in appearance, can not determine pulse site, also just can not directly test the speed, therefore need to arrange inductor on power transmission shaft, inductor can be the boss be welded on power transmission shaft, also can be arranged on power transmission shaft upper groove, belt drive power transmission shaft rotates, and on power transmission shaft, inductor often will produce a pulse when tachogenerator 3 on tachogenerator 3.Umber of pulse is undertaken changing and showing by the transmitter that tests the speed, and also intuitively the rotating speed of belt drive shaft can be shown by control system host computer, facilitates staff to monitor impact breaker duty.If when there is putty, the working power of impact breaker also directly can be cut off by host computer, by manually carrying out cleaning putty.
Claims (8)
1. a monitoring method for impact breaker outlet putty, the method judges whether impact breaker outlet putty occurs by the rotating speed of monitoring impact breaker belt drive shaft; The rotating speed N of belt drive shaft when normally running according to impact breaker
z, setting critical speed N
l; As the actual speed N of belt drive shaft
slower than critical speed N
ltime then judge impact breaker outlet occur putty, namely shut down to impact breaker outlet clear up.
2. monitoring method according to claim 1, it is characterized in that: the rotating speed of described monitoring impact breaker belt drive shaft be on belt drive shaft, weld one piece of boss or on belt drive shaft milling groove as inductor, above inductor, tachogenerator is installed simultaneously, belt drive shaft often rotates one week, tachogenerator sends a pulse, records the actual speed N of belt drive shaft according to the umber of pulse sent in the unit interval
s, actual speed N
sdeliver to transmitter display of testing the speed, by the actual speed N of operating personnel's real time monitoring belt drive shaft
s, as discovery actual speed N
slower than critical speed N
ltime disconnect impact breaker power supply by operating personnel, to impact breaker outlet clear up.
3. monitoring method according to claim 2, is characterized in that: described actual speed N
swhile delivering to transmitter display of testing the speed, also deliver to the display of control system host computer, be provided with rotating speed comparison program in control system, as the actual speed N that control system receives
slower than the critical speed N of control system setting
ltime, control system host computer sends alarm signal, and impact breaker power supply is cut off in control system automatic interlock, then is cleared up impact breaker outlet by operating personnel.
4. the speed measuring device that monitoring method is used according to the arbitrary claim of claim 1-3, it is characterized in that: comprise the inductor (5) be located on impact breaker (1) power transmission shaft, inductor (5) side is provided with tachogenerator (3), and tachogenerator (3) is electrically connected with the transmitter (4) that tests the speed.
5. speed measuring device according to claim 4, is characterized in that: described inductor (5) is positioned on the power transmission shaft between impact breaker (1) and bearing block (6); The tachogenerator (3) of inductor (5) side is connected through the housing of mounting bracket (2) with impact breaker (1) side.
6. speed measuring device according to claim 4, it is characterized in that: described tachogenerator (3) is electrically connected with test the speed transmitter (4) and control system host computer, be provided with rotating speed comparison means in control system host computer, the electric power system of rotating speed comparison means and impact breaker (1) is electrically connected.
7. speed measuring device according to claim 4, it is characterized in that: described inductor (5) is the metal bosses be welded on power transmission shaft, probe and the boss distance from top of tachogenerator (3) are less than 3mm.
8. speed measuring device according to claim 4, it is characterized in that: described inductor (5) is the groove be located on power transmission shaft, probe and the recess edge distance of tachogenerator (3) are less than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443957.9A CN104511344A (en) | 2013-09-26 | 2013-09-26 | Impact crusher outlet material jam monitoring method and used speed measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443957.9A CN104511344A (en) | 2013-09-26 | 2013-09-26 | Impact crusher outlet material jam monitoring method and used speed measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104511344A true CN104511344A (en) | 2015-04-15 |
Family
ID=52787557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310443957.9A Pending CN104511344A (en) | 2013-09-26 | 2013-09-26 | Impact crusher outlet material jam monitoring method and used speed measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104511344A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907155A (en) * | 2015-06-12 | 2015-09-16 | 遵义市立新机械有限责任公司 | Crusher speed detector based on magnet |
| CN105109934A (en) * | 2015-09-17 | 2015-12-02 | 山东钢铁股份有限公司 | Long distance monitoring device for impeller feeder |
| CN107436362A (en) * | 2017-08-25 | 2017-12-05 | 湖南三德科技股份有限公司 | A kind of coal sample detection line disintegrating machine Rotating speed measring method, apparatus and disintegrating machine |
| CN114074021A (en) * | 2021-11-20 | 2022-02-22 | 酒泉钢铁(集团)有限责任公司 | Crusher transmission PLC control system and method based on variable frequency transmission system |
-
2013
- 2013-09-26 CN CN201310443957.9A patent/CN104511344A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907155A (en) * | 2015-06-12 | 2015-09-16 | 遵义市立新机械有限责任公司 | Crusher speed detector based on magnet |
| CN105109934A (en) * | 2015-09-17 | 2015-12-02 | 山东钢铁股份有限公司 | Long distance monitoring device for impeller feeder |
| CN107436362A (en) * | 2017-08-25 | 2017-12-05 | 湖南三德科技股份有限公司 | A kind of coal sample detection line disintegrating machine Rotating speed measring method, apparatus and disintegrating machine |
| CN114074021A (en) * | 2021-11-20 | 2022-02-22 | 酒泉钢铁(集团)有限责任公司 | Crusher transmission PLC control system and method based on variable frequency transmission system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150415 |