CN107971081B - Vertical roller mill grinding roller vibration monitoring device based on acceleration sensor - Google Patents
Vertical roller mill grinding roller vibration monitoring device based on acceleration sensor Download PDFInfo
- Publication number
- CN107971081B CN107971081B CN201711474835.0A CN201711474835A CN107971081B CN 107971081 B CN107971081 B CN 107971081B CN 201711474835 A CN201711474835 A CN 201711474835A CN 107971081 B CN107971081 B CN 107971081B
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- roller
- acceleration sensor
- bearing
- monitoring device
- connecting pipe
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- 230000001133 acceleration Effects 0.000 title claims abstract description 32
- 238000012806 monitoring device Methods 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 238000009423 ventilation Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000004044 response Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- -1 electric power Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a vertical roller mill grinding roller vibration monitoring device based on an acceleration sensor, which comprises a roller shaft, a wheel hub, a cylindrical roller bearing and a tapered roller bearing, wherein the cylindrical roller bearing and the tapered roller bearing are connected with the roller shaft and the wheel hub; the head of the roll shaft is provided with a pressing plate; the roll shaft is provided with a ventilation channel for balancing the internal and external air pressure; an acceleration sensor is arranged on the pressing plate; the signal output terminal of the acceleration sensor is electrically connected with one end of a sensor cable, and the other end of the sensor cable passes through the ventilation channel to be electrically connected with the signal receiving terminal; the signal receiving terminal is positioned outside the vertical roller mill roller. This patent is connected through the supervisory equipment of installation vibration acceleration sensor, acceleration sensor cable pass the grinding roller axle with outside to realize the real-time supervision to the vibration of grinding roller bearing, and store and show in passing through data cable transmission supervisory equipment with data, this patent can monitor the subtle unusual vibration of bearing, in time accurate response bearing running state has played the key effect to the protection bearing.
Description
Technical Field
The invention relates to the technical field of nonmetal solid particle grinding equipment in industries of building materials, electric power, steel and the like, in particular to a vertical roller mill grinding roller vibration monitoring device based on an acceleration sensor.
Background
As is well known, the vertical mill is an energy-saving grinding device widely applied to industries such as cement, electric power, steel and the like at present. Wherein the grinding roller of the vertical mill is used as a main grinding device to be matched with the grinding disc to bear the work of grinding materials.
In the working state, the pressurizing oil cylinder of the vertical mill transmits pressure to the grinding roller through the rocker arm device to generate grinding force for grinding materials, and the protection of the grinding roller is particularly important because the grinding force is very large, and the grinding roller is high in temperature, high in dust concentration and high in abrasion and severe working environment, wherein the protection of a large bearing in the grinding roller is the most critical. In actual production operation, the damage of the grinding roller bearing has great influence on the whole equipment and the production line, the maintenance cost is high, the period is long, but because the grinding roller bearing is in a totally-closed state during the operation of the vertical mill, the oil return temperature of the grinding roller can only indirectly react with the condition of the bearing on site, once the oil return temperature is abnormal, the bearing problem is serious, and the running state of the bearing cannot be timely found by judging the oil return temperature singly. Thus, real-time monitoring of the grinding roller bearings and accurate response to the bearing operating conditions becomes very important.
Disclosure of Invention
The invention aims to solve the technical problems that: providing a vertical roller mill grinding roller vibration monitoring device based on an acceleration sensor; according to the vertical roller mill grinding roller vibration monitoring device based on the acceleration sensor, the state of the bearing of the roller shaft can be indirectly mastered in time through the acceleration sensor, and when the bearing is damaged, problems can be timely found, so that engineers are embodied to carry out emergency treatment; while being able to provide valuable data for the state of the bearing.
The invention adopts the technical proposal for solving the technical problems in the prior art that:
the vertical roller grinding roller vibration monitoring device based on the acceleration sensor comprises a roller shaft (1), a hub (3), a cylindrical roller bearing (2) and a tapered roller bearing (4) which are connected with the roller shaft (1) and the hub (3); a pressing plate (5) is arranged at the head of the roll shaft (1); the method is characterized in that: the roll shaft (1) is provided with a ventilation channel for balancing the internal and external air pressure; an acceleration sensor (6) is arranged on the pressing plate (5); the signal output terminal of the acceleration sensor (6) is electrically connected with one end of a sensor cable (16), and the other end of the sensor cable (16) passes through the ventilation channel to be electrically connected with the signal receiving terminal; the signal receiving terminal is positioned outside the vertical roller mill roller.
Further: the acceleration sensor (6) is fixedly connected with the pressing plate (5) through a connecting bolt (7) with a locking gasket (8).
Further: the tail part of the roll shaft (1) is provided with a vent hole connecting pipe (15) communicated with the ventilation channel, the vent hole connecting pipe (15) is communicated with one end of the outer connecting pipe (10) through a three-way joint (14), and a filter (9) is arranged on the three-way joint (14); the other end of the outer connecting pipe (10) is provided with a fastening nut (11), and a hole for a sensor cable (16) to pass through is formed in the axis position of the fastening nut (11).
Further: a sealing felt (12) and a taper sleeve (13) are arranged between the outer connecting pipe (10) and the fastening nut (11).
Further: the signal receiving terminal includes a data memory and a data display.
The invention has the advantages and positive effects that:
through adopting above-mentioned technical scheme, this patent is through near grinding roller axle head installation vibration acceleration sensor, and acceleration sensor cable passes grinding roller axle and outside supervisory equipment is connected to realize the real-time supervision to grinding roller bearing's vibration, and store and show in passing through data cable transmission supervisory equipment with data, this suit of device can monitor the subtle unusual vibration of bearing, can in time accurate reaction bearing running state, plays very important effect to protection bearing. The sensor cable in this patent wears out through the bleeder vent of roller and is connected with external equipment, so install tee bend sealing device (seal felt, taper sleeve and three way connection) additional in the ventilative cap department of roller afterbody for the cable can wear out smoothly and prevent the inside lubricating oil of grinding roller to spill over.
Drawings
FIG. 1 is an axial cross-sectional view of a preferred embodiment of the present invention;
FIG. 2 is an axial cross-sectional view of the tail of a roll shaft in a preferred embodiment of the invention;
FIG. 3 is a circuit diagram of a preferred embodiment of the present invention;
wherein: 1. a roll shaft; 2. cylindrical roller bearings; 3. a hub; 4. tapered roller bearings; 5. a pressing plate; 6. an acceleration sensor; 7. a connecting bolt; 8. a locking gasket; 9. a filter; 10. an outer connection tube; 11. a fastening nut; 12. sealing felt; 13. a taper sleeve; 14. a three-way joint; 15. a vent hole connecting pipe; 16. a sensor cable.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1 to 3, an acceleration sensor-based vibration monitoring device for a vertical roller mill grinding roller, wherein the vertical roller mill grinding roller comprises a roller shaft 1, a hub 3, a cylindrical roller bearing 2 and a tapered roller bearing 4, wherein the cylindrical roller bearing 2 is used for connecting the roller shaft 1 and the hub 3; a pressing plate 5 is arranged at the head of the roll shaft 1; the roll shaft 1 is provided with a ventilation channel for balancing the internal and external air pressure; an acceleration sensor 6 is mounted on the pressing plate 5; the signal output terminal of the acceleration sensor 6 is electrically connected with one end of a sensor cable 16, and the other end of the sensor cable 16 passes through the ventilation channel to be electrically connected with the signal receiving terminal; the signal receiving terminal is positioned outside the vertical roller mill roller. The acceleration sensor in the present preferred embodiment is: ICP acceleration sensor fis. Sensor. Hw. Co4.30m.
The acceleration sensor 6 is fixedly connected with the pressing plate 5 through a connecting bolt 7 with a locking gasket 8.
The tail part of the roll shaft 1 is provided with a vent hole connecting pipe 15 communicated with a vent passage, the vent hole connecting pipe 15 is communicated with one end of an outer connecting pipe 10 through a three-way joint 14, and a filter 9 is arranged on the three-way joint 14; the other end of the outer connecting pipe 10 is provided with a fastening nut 11, and a hole through which a sensor cable 16 passes is formed in the axial position of the fastening nut 11.
A sealing felt 12 and a taper sleeve 13 are arranged between the outer connecting pipe 10 and the fastening nut 11.
The signal receiving terminal includes a data memory and a data display.
The signal receiving terminal needs to be connected with a control room monitoring computer.
The set of equipment can also be remotely linked with the equipment provider through a network under the condition of being allowed by the manufacturer, so as to assist the staff of the manufacturer in analyzing the generated problems.
As shown in fig. 1, an acceleration sensor 6 is mounted on a platen 5, a sensor cable is led out from an air vent (the air vent is a port of an air vent passage) on a roll shaft 1, and the acceleration sensor 6 is fixed on the platen 5 by a connecting bolt 7 and a locking spacer 8.
The tail of the roll shaft is wrapped by the sealing felt 12, the penetrated cable is sleeved with the taper sleeve 13 and the fastening nut 11 in sequence, the fastening nut 11 is screwed into the outer connecting pipe 10, and the taper sleeve 13 gradually compresses the sealing felt 12 along with the penetration of the screwing, so that the sealing effect is achieved.
After the sensor is installed, the sensor cable which is penetrated out is connected with external monitoring equipment, and the monitoring device can send the collected signals to a control room in real time through a network, so that personnel monitoring is facilitated.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (3)
1. The vertical roller grinding roller vibration monitoring device based on the acceleration sensor comprises a roller shaft (1), a hub (3), a cylindrical roller bearing (2) and a tapered roller bearing (4) which are connected with the roller shaft (1) and the hub (3); a pressing plate (5) is arranged at the head of the roll shaft (1); the method is characterized in that: the roll shaft (1) is provided with a ventilation channel for balancing the internal and external air pressure; an acceleration sensor (6) is arranged on the pressing plate (5); the signal output terminal of the acceleration sensor (6) is electrically connected with one end of a sensor cable (16), and the other end of the sensor cable (16) passes through the ventilation channel to be electrically connected with the signal receiving terminal; the signal receiving terminal is positioned outside the vertical roller mill roller; the acceleration sensor (6) is fixedly connected with the pressing plate (5) through a connecting bolt (7) with a locking gasket (8); the tail part of the roll shaft (1) is provided with a vent hole connecting pipe (15) communicated with the ventilation channel, the vent hole connecting pipe (15) is communicated with one end of the outer connecting pipe (10) through a three-way joint (14), and a filter (9) is arranged on the three-way joint (14); the other end of the outer connecting pipe (10) is provided with a fastening nut (11), and a hole for a sensor cable (16) to pass through is formed in the axis position of the fastening nut (11).
2. The acceleration sensor-based vertical roller mill grinding roller vibration monitoring device according to claim 1, wherein: a sealing felt (12) and a taper sleeve (13) are arranged between the outer connecting pipe (10) and the fastening nut (11).
3. The vertical roller mill grinding roller vibration monitoring device based on an acceleration sensor according to claim 1 or 2, characterized in that: the signal receiving terminal includes a data memory and a data display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711474835.0A CN107971081B (en) | 2017-12-29 | 2017-12-29 | Vertical roller mill grinding roller vibration monitoring device based on acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711474835.0A CN107971081B (en) | 2017-12-29 | 2017-12-29 | Vertical roller mill grinding roller vibration monitoring device based on acceleration sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107971081A CN107971081A (en) | 2018-05-01 |
| CN107971081B true CN107971081B (en) | 2024-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711474835.0A Active CN107971081B (en) | 2017-12-29 | 2017-12-29 | Vertical roller mill grinding roller vibration monitoring device based on acceleration sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN107971081B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3663011A1 (en) * | 2018-12-05 | 2020-06-10 | Primetals Technologies Austria GmbH | Recording and transfer of data of a bearing of a steelworks or rolling machine |
| CN110375844A (en) * | 2019-06-21 | 2019-10-25 | 国网江苏省电力有限公司泰州供电分公司 | A kind of passive type distribution transforming vibration equipment monitoring device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238182A (en) * | 1993-02-18 | 1994-08-30 | Kawasaki Heavy Ind Ltd | Roller rotating speed detector of vertical mill |
| JP2011088115A (en) * | 2009-10-26 | 2011-05-06 | Ihi Corp | Vertical roller mill, and method for detecting wear of pressure roller in vertical roller mill |
| CN102143801A (en) * | 2008-09-12 | 2011-08-03 | 坡利西斯股份公司 | Method for monitoring a grinding system and grinding system comprising a monitoring device |
| CN102626664A (en) * | 2012-03-31 | 2012-08-08 | 江苏恒远国际工程有限公司 | Lubricating device for vertical grinding roller |
| CN202914752U (en) * | 2012-11-06 | 2013-05-01 | 北京电力设备总厂 | Vertical mill and grinder roll thereof |
| CN203591844U (en) * | 2013-10-15 | 2014-05-14 | 南京西普水泥工程集团有限公司 | Sensing and measuring device for roll position of vertical roller mill |
| CN203702894U (en) * | 2013-12-06 | 2014-07-09 | 浙江同力重型机械制造有限公司 | Temperature measuring component of grinding roller bearing |
| CN106622621A (en) * | 2016-12-05 | 2017-05-10 | 合肥中亚建材装备有限责任公司 | Grinding roller bearing monitoring mechanism |
| CN107132046A (en) * | 2016-02-26 | 2017-09-05 | 通用电器技术有限公司 | System and method for monitoring the health of the bearing in Journal housing |
| CN208082594U (en) * | 2017-12-29 | 2018-11-13 | 中材（天津）粉体技术装备有限公司 | A kind of vertical roller grinder grinding roller vibration monitoring device based on acceleration transducer |
-
2017
- 2017-12-29 CN CN201711474835.0A patent/CN107971081B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238182A (en) * | 1993-02-18 | 1994-08-30 | Kawasaki Heavy Ind Ltd | Roller rotating speed detector of vertical mill |
| CN102143801A (en) * | 2008-09-12 | 2011-08-03 | 坡利西斯股份公司 | Method for monitoring a grinding system and grinding system comprising a monitoring device |
| JP2011088115A (en) * | 2009-10-26 | 2011-05-06 | Ihi Corp | Vertical roller mill, and method for detecting wear of pressure roller in vertical roller mill |
| CN102626664A (en) * | 2012-03-31 | 2012-08-08 | 江苏恒远国际工程有限公司 | Lubricating device for vertical grinding roller |
| CN202914752U (en) * | 2012-11-06 | 2013-05-01 | 北京电力设备总厂 | Vertical mill and grinder roll thereof |
| CN203591844U (en) * | 2013-10-15 | 2014-05-14 | 南京西普水泥工程集团有限公司 | Sensing and measuring device for roll position of vertical roller mill |
| CN203702894U (en) * | 2013-12-06 | 2014-07-09 | 浙江同力重型机械制造有限公司 | Temperature measuring component of grinding roller bearing |
| CN107132046A (en) * | 2016-02-26 | 2017-09-05 | 通用电器技术有限公司 | System and method for monitoring the health of the bearing in Journal housing |
| CN106622621A (en) * | 2016-12-05 | 2017-05-10 | 合肥中亚建材装备有限责任公司 | Grinding roller bearing monitoring mechanism |
| CN208082594U (en) * | 2017-12-29 | 2018-11-13 | 中材（天津）粉体技术装备有限公司 | A kind of vertical roller grinder grinding roller vibration monitoring device based on acceleration transducer |
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| Publication number | Publication date |
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| CN107971081A (en) | 2018-05-01 |
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Effective date of registration: 20240102 Address after: No.198, 9 Xingzhong Road, Beichen Science and Technology Industrial Park, New Technology Industrial Park, Beichen District, Tianjin 300400 Applicant after: SINOMA (TIANJIN) POWDER TECHNOLOGY & EQUIPMENT Co.,Ltd. Applicant after: TIANJIN CEMENT INDUSTRY DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: Tianjin District of Beichen city in the 300400 major North Road No. 1 Applicant before: SINOMA (TIANJIN) POWDER TECHNOLOGY & EQUIPMENT Co.,Ltd. |
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