CN101738174A - Bearing clearance detection, adjustment and operation method and detection system thereof of large-size ball mill - Google Patents
Bearing clearance detection, adjustment and operation method and detection system thereof of large-size ball mill Download PDFInfo
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- CN101738174A CN101738174A CN200910265831A CN200910265831A CN101738174A CN 101738174 A CN101738174 A CN 101738174A CN 200910265831 A CN200910265831 A CN 200910265831A CN 200910265831 A CN200910265831 A CN 200910265831A CN 101738174 A CN101738174 A CN 101738174A
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Abstract
The invention provides bearing clearance detection, adjustment and operation method and detection system thereof of a large-size ball mill. The system comprises a bearing seat, a bearing, an oil pump, a displacement measurement device and a display device, wherein the displacement measurement device is arranged in the upper part of the bearing seat at a main shaft end of the ball mill, data information containing clearance values between main shafts at both ends of the ball mill and a bearing bush is acquired through the displacement measurement device, and the data information is converted into electrical signals; the display device is connected with the displacement measurement device through a data line and used for receiving and displaying the electrical signals so as to judge whether the clearance values between the main shafts at both ends of the ball mill and the bearing bush are enough and synchronous or not; and when the clearance values between the main shafts at both ends of the ball mill and the bearing bush are enough and synchronous, the ball mill is started, thus the phenomenon of bearing bush damages caused by the condition that the lifting of the main shafts at both ends are not synchronous during starting, and the clearances between the main shafts and the bearing bush are not enough in the processes of debugging, trial runs and production of the large-size ball mill are avoided.
Description
Technical field
The present invention relates to detection technique field, bearing clearance, relate in particular to a kind of large-size ball mill bearing clearance and detect adjustment method of operating and detection system thereof.
Background technology
In ore dressing is produced, adopt large-size ball mill equipment more.Because its load and impulsive force are big,, and be designed to dynamic and hydrostatic bearing so the two ends main shaft of large-size ball mill is common and babbitt metal bearing is used.According to the design concept of dynamic and hydrostatic bearing, before bowl mill starts, should at first open high-pressure oil pump, with bowl mill two axial ends jack-up, behind the formation high pressure oil film, the low rate start motor drives bowl mill and slowly turns round again, simultaneously, spray lubrication system start-up; After bowl mill running certain hour reached rated speed, high-pressure oil pump was shut down.Thereby realize lubricating between bowl mill main shaft and bearing shell.In the debugging of bowl mill, test run, production run, because the existence of situations such as the deviation of the unevenness of bowl mill load and the installation of bowl mill and misoperation, so phenomenons such as gap deficiency between the main shaft jacking of bowl mill two ends asynchronous or bowl mill two ends main shaft and the bearing shell often occur.When the phenomenons such as gap deficiency in the main shaft jacking of grinding machine two ends between asynchronous or bowl mill two ends main shaft and the bearing shell occur,, then be easy to cause the phenomenon of damage ball grinder bush if operating personnel start the high-speed electric expreess locomotive bowl mill that turns round.In case the accident of damage ball grinder bush takes place, for the production that recovers bowl mill just must be carried out a series of activities, comprise that pouring out steel ball and raw material, jack-up bowl mill gets watt, casts bearing shell lining (Babbit metal) again and more renew bearing shell, machine work, bearing shell scraping and test run, yet, these labor intensities are big, and the consumption manpower and materials, reduce production efficiency to a great extent, and increased the production cost of enterprise.
Chinese patent publication number CN87211853, open day on June 8th, 1988, name is called " pick-up unit in oil film bearings and gap, top ", this utility model discloses the pick-up unit in a kind of oil film bearings of being made up of capacitive transducer, intermediate-freuqncy signal source, signal amplifier, demonstration and signalling alarm equipment and gap, top, has realized the measurement to oil film bearings and gap, top.Yet this utility model is not suitable for large-size ball mill, because large-size ball mill does not generally have top bearing shell.In addition; the deficiency of this utility model is that also it does not have the measurement of realization to the nonsynchronous situation of axle journal jacking at same axle two ends; and its complex structure; simultaneously when the bearing that this utility model is housed breaks down the needs replacing in operation process; the capacitive transducer that is installed in the bearing bottom in this utility model can not be changed under the situation of axle running; that is to say; must be under the situation of shutting down; could change the capacitive transducer that is installed in the bearing bottom, and in actual production, abstain from very much long-time the shutdown.
In order to solve the problem of the damage bearing shell that in the start-up course of bowl mill, is occurred, the main shaft jacking that just must guarantee the bowl mill two ends synchronously and the enough big situation in the main shaft at bowl mill two ends and the gap between the bearing shell get off to start bowl mill.Yet present bearing clearance detection technique can't reflect the situation of large-size ball mill two ends main shaft jacking fully intuitively, thereby is provided with a difficult problem for the solution of this problem.
Summary of the invention
In order to address the above problem, the present invention has designed a cover large-size ball mill bearing clearance detection system, can detect the main shaft at bowl mill two ends and the gap width between the bearing shell intuitively respectively by this detection system, operating personnel adjust the gap of bearings at both ends consistent or synchronous according to detected main shaft with the gap width between the bearing shell, and then the startup bowl mill, thereby solved above-mentioned in the bowl mill start-up course problem of existing damage bearing shell.
An aspect of of the present present invention provides a kind of large-size ball mill bearing clearance to detect and has adjusted method of operating, may further comprise the steps: the displacement measuring device of the inside on the top of the bearing seat by being arranged on the bowl mill spindle end records the main shaft that comprises the bowl mill two ends and the data message of the gap width between the bearing shell respectively, and forms electric signal; The described electric signal that described displacement measuring device is formed by data line is sent on the display device on the operation board side that is arranged on described bowl mill; Judge that according to the demonstration of described display device whether enough the main shaft at described bowl mill two ends and the gap width between the bearing shell and synchronously; If the result who judges is sure, then start described bowl mill; If the result who judges negates, then adjust the main shaft at described bowl mill two ends and the gap width between the bearing shell by oil pump, main shaft and the gap width between the bearing shell up to described bowl mill two ends are enough and synchronous, to guarantee between main shaft and bearing shell, forming oil film enough thick and that thickness is synchronous, start bowl mill then.
Another aspect of the present invention provides a kind of large-size ball mill bearing clearance detection system, comprise bearing seat, bearing, also comprise: displacement measuring device, be arranged on the inside on top of the bearing seat of bowl mill spindle end, obtain to comprise the data message of gap width between the main shaft at bowl mill two ends and the bearing shell respectively by described displacement measuring device, and described data message is formed electric signal; Display device, link to each other with described displacement measuring device by data line, receive described electric signal, and show after described electrical signal conversion become intuitively data message, judge that for operating personnel whether enough the main shaft at bowl mill two ends and the gap width between the bearing shell and synchronously.
The present invention is by installing displacement measuring device additional on the bearing at bowl mill two ends, measure the gap width that bowl mill two ends main shaft floats, and this gap value is transformed into is presented at behind the electric signal by the operation board of bowl mill, operating personnel judge through simple, thereby can guarantee that the main shaft at bowl mill two ends and the gap width between the bearing shell are enough and synchronous, and then start bowl mill.Solved the phenomenon of the asynchronous or main shaft and the damage bearing shell that the gap deficiency between the bearing shell causes of the main shaft jackings of bowl mill two ends so effectively.
Description of drawings
Fig. 1 shows the sectional structure synoptic diagram that the situation that is provided with of displacement measuring device is adjusted in large-size ball mill bearing clearance detection according to an exemplary embodiment of the present invention.
Fig. 2 detects for large-size ball mill bearing clearance according to an exemplary embodiment of the present invention and adjusts operational flowchart.
Embodiment
The bearing clearance of large-size ball mill of the present invention two ends main shaft is asynchronous to be meant that the gap length between two ends main shaft and the bearing shell is different, or on one side the gap is big, or the gap is little and cause the phenomenon that makes bearing bush abrasion when starting because of the imbalance of main shaft on one side.
The bearing clearance deficiency of bowl mill of the present invention two ends main shaft is meant that the oil pressure that oil pump is given fails to form the high pressure oil film, and causes the phenomenon of bearing bush abrasion.
Describe exemplary embodiment of the present invention in detail below in conjunction with accompanying drawing.Here need to prove that the size of each several part is not to draw in proportion in the accompanying drawing.In the following description, for the sake of clarity, can exaggerate shape and size among the figure, and use identical label to represent identical assembly all the time.
Fig. 1 shows the sectional structure synoptic diagram that the situation that is provided with of displacement measuring device is adjusted in large-size ball mill bearing clearance detection according to an exemplary embodiment of the present invention.As shown in Figure 1, the sliding bearing that is formed by bearing shell 1 and bearing seat 3 matches with an end of bowl mill main shaft 2, and the bearing seat 3 that bearing shell 1 is housed is connected with the lubricating system (not shown) that comprises the high-pressure oil pump (not shown).Inside on bearing seat 3 tops is provided with displacement measuring device 4, this displacement measuring device 4 can be contactless displacement measuring device, preferably, this displacement measuring device 4 has adopted micro-displacement sensor, to measure the displacement of axle journal jacking accurately, thereby obtain comprising the main shaft at bowl mill two ends and the data message of the gap width between the bearing shell (also can be described as displacement information), but the invention is not restricted to this.The inside on the top of another bearing seat that cooperates at the other end with bowl mill main shaft 2 also is provided with another displacement measuring device similarly.Two displacement measuring devices all are connected with the data line (not shown), and the other end of two data lines all is connected on the display device (not shown) on the operation board side that is arranged at bowl mill.In this exemplary embodiment,, the invention is not restricted to this though described two displacement measuring devices, two data lines.Display device wherein, data line and micro-displacement sensor all can obtain from market.Measure the main shaft that comprises the bowl mill two ends and the data message of the gap width between the bearing shell respectively by displacement measuring device, and form electric signal; Electric signal is sent on the display device on the operation board side that is arranged at bowl mill by data line, the formed electrical signal conversion of data message of the gap width between the main shaft that display device is used for comprising the bowl mill two ends and the bearing shell becomes data message intuitively, and with this intuitively data message be shown to operating personnel.
Fig. 2 detects for large-size ball mill bearing clearance according to an exemplary embodiment of the present invention and adjusts operational flowchart.As shown in Figure 2, large-size ball mill bearing clearance detection adjustment method of operating can may further comprise the steps according to an exemplary embodiment of the present invention:
Before bowl mill starts, can record the main shaft that comprises the bowl mill two ends and the data message of the gap width between the bearing shell respectively by displacement measuring device, and form electric signal;
The electric signal that displacement measuring device is formed by data line is sent on the other display device of the operation board that is arranged on bowl mill, display device with electrical signal conversion for data message intuitively and with this intuitively data message be shown to operating personnel;
Operating personnel judge that according to the shown data message intuitively of display device whether enough the main shaft at bowl mill two ends and the gap width between the bearing shell and synchronously;
If the result who judges is sure, then normally start bowl mill; If the result who judges negates, then adjust the main shaft at bowl mill two ends and the gap width between the bearing shell by high-pressure oil pump, main shaft and the gap width between the bearing shell up to the bowl mill two ends are all enough and synchronous, to guarantee between main shaft and bearing shell, forming oil film enough thick and that thickness is synchronous, start bowl mill then.Said herein thickness is meant synchronously through the two ends of the axle of oil film jacking and is in sustained height, can be identical in order to reach this thickness that requires oil film, but, when there is the certain height difference in the bearing shell at the bowl mill main shaft two ends after the installation, oil film thickness also can be different, in a word, the synchronous oil film of thickness can make the two ends of the axle in bearing shell be in sustained height.
The present invention's solution effectively the not enough damage bearing shell phenomenon that causes in gap between, main shaft asynchronous and the bearing shell owing to floating of the two ends main shaft of large-size ball mill.Simultaneously, when the signal that displacement measuring device obtained at the two ends of bowl mill main shaft does not satisfy above-mentioned requirements, operating personnel can adjust the pressure of high-pressure oil pump lubricating system immediately, so that the size in the main shaft at bowl mill main shaft two ends and the gap between the bearing shell is complementary, to satisfy the normal operation of bearing.
Although illustrate and described the present invention, under the situation that does not break away from the spirit and scope of the present invention defined by the claims, can carry out various modifications and change in conjunction with exemplary embodiment.
Claims (7)
1. a large-size ball mill bearing clearance is detected and is adjusted method of operating, may further comprise the steps:
The displacement measuring device of the inside on the top of the bearing seat by being arranged on the bowl mill spindle end records the main shaft that comprises the bowl mill two ends and the data message of the gap width between the bearing shell respectively, and forms electric signal;
The described electric signal that described displacement measuring device is formed by data line is sent on the display device on the operation board side that is arranged on described bowl mill;
Judge that according to the demonstration of described display device whether enough the main shaft at described bowl mill two ends and the gap width between the bearing shell and synchronously;
If the result who judges is sure, then start described bowl mill; If the result who judges negates, then adjust the main shaft at described bowl mill two ends and the gap width between the bearing shell by oil pump, main shaft and the gap width between the bearing shell up to described bowl mill two ends are enough and synchronous, to guarantee between main shaft and bearing shell, forming oil film enough thick and that thickness is synchronous, start bowl mill then.
2. large-size ball mill as claimed in claim 1 bearing clearance is detected and is adjusted method of operating, it is characterized in that described displacement measuring device is contactless displacement measuring device.
3. large-size ball mill as claimed in claim 1 bearing clearance is detected and is adjusted method of operating, it is characterized in that described oil pump is a high-pressure oil pump, in order to the bearing seat fuel feeding, so that form the hydraulic oil intermembrane space between the main shaft of bowl mill and the bearing shell, reaches lubrication.
4. large-size ball mill as claimed in claim 1 bearing clearance is detected and is adjusted method of operating, it is characterized in that having adopted micro-displacement sensor in the described displacement measuring device.
5. large-size ball mill as claimed in claim 1 bearing clearance detection system comprises bearing seat, bearing, it is characterized in that also comprising:
Displacement measuring device is arranged on the inside on top of the bearing seat of bowl mill spindle end, obtains to comprise the data message of gap width between the main shaft at bowl mill two ends and the bearing shell respectively by described displacement measuring device, and described data message is formed electric signal;
Display device, link to each other with described displacement measuring device by data line, receive described electric signal, and show after described electrical signal conversion become intuitively data message, judge that for operating personnel whether enough the main shaft at bowl mill two ends and the gap width between the bearing shell and synchronously.
6. large-size ball mill as claimed in claim 5 bearing clearance detection system is characterized in that described displacement measuring device is contactless displacement measuring device.
7. large-size ball mill as claimed in claim 5 bearing clearance detection system is characterized in that having adopted micro-displacement sensor in the described displacement measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102658310A CN101738174B (en) | 2009-12-28 | 2009-12-28 | Bearing clearance detection, adjustment and operation method and detection system thereof of large-size ball mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102658310A CN101738174B (en) | 2009-12-28 | 2009-12-28 | Bearing clearance detection, adjustment and operation method and detection system thereof of large-size ball mill |
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| Publication Number | Publication Date |
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| CN101738174A true CN101738174A (en) | 2010-06-16 |
| CN101738174B CN101738174B (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102658310A Expired - Fee Related CN101738174B (en) | 2009-12-28 | 2009-12-28 | Bearing clearance detection, adjustment and operation method and detection system thereof of large-size ball mill |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383492A (en) * | 2016-11-21 | 2017-02-08 | 吉林瑞铭机电设备有限公司 | Gap adjusting machine |
| CN110595774A (en) * | 2019-08-30 | 2019-12-20 | 河南省安装集团有限责任公司 | High-pressure oil film detection process for main shaft bearing of barrel mill |
| CN111492220A (en) * | 2017-12-20 | 2020-08-04 | Zf 腓德烈斯哈芬股份公司 | Model-based method and system for monitoring the condition of sliding bearings, in particular of wind turbines |
| CN112879535A (en) * | 2021-01-13 | 2021-06-01 | 广东韶钢松山股份有限公司 | Fault removing method and device for driving mechanism of sintering machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211853U (en) * | 1987-08-12 | 1988-06-08 | 张能刚 | Apparatus for monitoring oil film of sliding bearing and top clearance |
| CN101339113A (en) * | 2008-08-19 | 2009-01-07 | 东南大学 | Machine tool main shaft axle journal shaft bushing friction performance test machine |
-
2009
- 2009-12-28 CN CN2009102658310A patent/CN101738174B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383492A (en) * | 2016-11-21 | 2017-02-08 | 吉林瑞铭机电设备有限公司 | Gap adjusting machine |
| CN106383492B (en) * | 2016-11-21 | 2023-04-11 | 吉林瑞铭机电设备有限公司 | Automatic steering gear clearance adjusting machine |
| CN111492220A (en) * | 2017-12-20 | 2020-08-04 | Zf 腓德烈斯哈芬股份公司 | Model-based method and system for monitoring the condition of sliding bearings, in particular of wind turbines |
| CN111492220B (en) * | 2017-12-20 | 2022-05-13 | Zf 腓德烈斯哈芬股份公司 | Model-based method and system for monitoring the condition of sliding bearings, in particular of wind turbines |
| CN110595774A (en) * | 2019-08-30 | 2019-12-20 | 河南省安装集团有限责任公司 | High-pressure oil film detection process for main shaft bearing of barrel mill |
| CN110595774B (en) * | 2019-08-30 | 2021-08-17 | 河南省安装集团有限责任公司 | High-pressure oil film detection process for main shaft bearing of barrel mill |
| CN112879535A (en) * | 2021-01-13 | 2021-06-01 | 广东韶钢松山股份有限公司 | Fault removing method and device for driving mechanism of sintering machine |
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| CN101738174B (en) | 2011-08-17 |
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