CN110274702B - Wireless monitoring device applied to oil film bearing running temperature - Google Patents
Wireless monitoring device applied to oil film bearing running temperature Download PDFInfo
- Publication number
- CN110274702B CN110274702B CN201910721993.4A CN201910721993A CN110274702B CN 110274702 B CN110274702 B CN 110274702B CN 201910721993 A CN201910721993 A CN 201910721993A CN 110274702 B CN110274702 B CN 110274702B
- Authority
- CN
- China
- Prior art keywords
- oil film
- temperature
- film bearing
- monitoring device
- temperature monitoring
- Prior art date
- 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.)
- Active
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 77
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 239000000523 sample Substances 0.000 claims description 43
- 238000003466 welding Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 69
- 238000009434 installation Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 238000005096 rolling process Methods 0.000 description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000009529 body temperature measurement Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/146—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations arrangements for moving thermometers to or from a measuring position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The wireless monitoring device comprises a temperature monitoring part and a fixing part, wherein the fixing part is sleeved on the temperature monitoring part, and the fixing part can move along the axial direction of the temperature monitoring part; the temperature monitoring part comprises a mounting seat, a temperature monitoring unit, an end cover and a sealing ring, wherein the mounting seat is a seat body with an opening at one end, the end cover is arranged at one end of the opening of the mounting seat, the sealing ring is arranged between the mounting seat and the end cover, the temperature monitoring unit is arranged in the seat body, and one end of the mounting seat, which is not opened, is inserted into the oil film bearing; the fixed part comprises a fixed chuck, a locking ring and a movable chuck, the fixed chuck is sleeved on the temperature monitoring part, the movable chuck is connected with the fixed chuck through locking threads, and the locking ring is arranged between the fixed chuck and the movable chuck. The temperature monitoring part can axially move along the fixing part, so that the temperature monitoring part can be adjusted on the oil film bearing, and the temperature monitoring part can reach the optimal temperature measuring point.
Description
Technical Field
The invention belongs to the technical field of temperature detection equipment, and particularly relates to a wireless monitoring device applied to the running temperature of an oil film bearing.
Background
The oil film bearing is a radial sliding bearing taking lubricating oil as a lubricating medium, has various types and is widely applied to rolling mills, steam turbines, generator sets, ball mills, fan bearings, astronomy, aviation, aerospace equipment and the like.
Because the main characteristics of modern rolling mill are large-scale, high-speed, heavy-load, continuous and automatic, especially large-scale plate and strip continuous rolling mill with plate type and plate thickness automatic control, oil film bearing is adopted in most cases, and is used as working roll bearing or back-up roll bearing on rolling mill, so-called rolling mill oil film bearing, and the bearing basically belongs to low-speed heavy-load, medium-speed medium-load or heavy-load bearing. Therefore, rolling mill oil film bearings are one of the most loaded bearings among oil film bearings.
The working principle is as follows: during rolling, the roll shaft journal is forced to move under the action of rolling force, the center of the oil film bearing and the center of the journal are eccentric, so that the gap between the oil film bearing and the journal forms two areas, namely a divergent area (the gap gradually becomes larger along the rotation direction of the journal) and a convergent area (gradually decreases along the rotation direction of the journal). When the rotating journal brings viscous lubricating oil from the divergent zone to the convergent zone, the bearing gap becomes smaller from large to small along the rotation direction of the journal, forming an oil wedge, and causing pressure in the lubricating oil.
In cold rolling workshops of steel mill enterprises, the rolling mill adopts oil film bearings more, in order to reach the persistence stability of production, can monitor oil film bearings's temperature generally, avoid the oil film bearings of rolling mill to lead to the fact the staple bolt because of the high temperature, directly influence production, in actual operation process, can appear following problem generally:
1. because of the structural specificity of the oil film bearing, the distance from the bearing seat surface to the temperature measuring point is large, and the common temperature measuring device cannot reach the temperature measuring point, so that the measured temperature value is inaccurate;
2. Because the oil film bearings are influenced by rolling force in the running process, the roller shaft journals are deviated, the positions of temperature measuring points are uncertain, the distances from the temperature measuring points of different oil film bearings to the surface of a bearing seat are unequal, the installation depth of the existing temperature measuring device is fixed, and the adjustment of the measuring position cannot be realized;
3. Because of the specificity of the working environment of the oil film bearing, the temperature monitoring device needs to be sealed, and the sealing ring of the common temperature measuring device is easy to deviate, so that the sealing performance of the temperature measuring device is poor;
4. When a common temperature measuring device is arranged on an oil film bearing, a rubber sealing gasket is adopted for sealing, the strength of the rubber sealing gasket is poor, the rubber sealing gasket is easy to damage in the installation process, the tightness between the temperature measuring device and the oil film bearing is affected, and the sealing effect is reduced.
5. The existing temperature measuring devices are connected in a wired mode, in actual production, the disassembling and replacing frequency of the bearing is very high, and the damage rate of the wired temperature measuring devices is very high, so that the practicability is not strong.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a wireless monitoring device applied to the running temperature of an oil film bearing, when the wireless monitoring device is fixed on the oil film bearing through a fixing part, the temperature monitoring part can axially move along the fixing part, so that the temperature monitoring part can be adjusted on the oil film bearing, the temperature monitoring part can reach an optimal temperature measuring point, and the accurate measurement of temperature data is ensured; meanwhile, the temperature monitoring part is adjusted on the fixing part, so that the installation requirements of different oil film bearings can be met, and the application range of the wireless monitoring device is wider.
The invention is realized by the following technical scheme:
The wireless monitoring device comprises a temperature monitoring part and a fixing part, wherein the fixing part is sleeved on the temperature monitoring part, and the fixing part can move along the axial direction of the temperature monitoring part; the temperature monitoring part comprises a mounting seat, a temperature monitoring unit, an end cover and a sealing ring, wherein the mounting seat is a seat body with an opening at one end, the end cover is arranged at one end of the opening of the mounting seat, the sealing ring is arranged between the mounting seat and the end cover, the temperature monitoring unit is arranged in the seat body, and one end of the mounting seat, which is not opened, is inserted into the oil film bearing; the fixed part comprises a fixed chuck, a locking ring and a movable chuck, the fixed chuck is sleeved on the temperature monitoring part, the movable chuck is connected with the fixed chuck through locking threads, and the locking ring is arranged between the fixed chuck and the movable chuck. When the wireless monitoring device is fixed on the oil film bearing through the fixing part, the temperature monitoring part can axially move along the fixing part, so that the temperature monitoring part can be adjusted on the oil film bearing, the temperature monitoring part can reach an optimal temperature measuring point, and accurate temperature data measurement is ensured; meanwhile, the temperature monitoring part is adjusted on the fixing part, so that the installation requirements of different oil film bearings can be met, and the application range of the wireless monitoring device is wider.
The mounting seat comprises a seat body, one end of the seat body is provided with a positioning rod, the tail end of the positioning rod is provided with a probe, the other end of the seat body is provided with an opening, the opening end of the seat body is provided with a cavity extending towards the inside of the seat body, the outer surface of the seat body is provided with a flange arranged around the seat body, one side of the opening end of the outer surface of the seat body is provided with a first thread, and an annular groove is arranged between the flange and the first thread. The positioning rod is arranged between the seat body and the probe, so that the positioning rod can move on the fixing part, the wireless monitoring device can have a certain adjusting distance, and the problem that temperature measuring points of different oil film bearings are inconsistent is solved.
The surface of the annular groove, which is positioned on one side of the flange, is an inclined surface, and the inclined surface is inclined to one side of the flange from the top of the annular groove to the bottom of the annular groove. The side surface of the annular groove, which is close to the flange, is provided with the inclined surface, so that when the end cover is screwed, the sealing ring moves along the inclined surface in the annular groove, the sealing ring is prevented from moving along the radial direction of the seat body, and the sealing effect is reduced.
And the positioning rod is connected with the probe by welding. The positioning rod is connected with the probe through welding, so that the integration between the positioning rod and the probe can be increased, the strength of a workpiece is improved, the breakage in the working process is avoided, and the stable operation of the wireless monitoring device is ensured.
The length of the positioning rod is 100 mm-150 mm. The positioning rod is arranged between 100mm and 150mm, so that the installation and adjustment requirements of the temperature monitoring part can be met, unnecessary excess length can not be generated, raw materials are saved, and the production cost is reduced.
The length of the probe is as follows: 300 mm-400 mm. The length of the probe is set between 350mm and 400mm, so that the strength of the probe can be ensured, damage in the use process is avoided, the probe can be matched with the positioning rod, the end part of the probe reaches the optimal temperature measuring point of the oil film bearing, the accuracy of measuring the temperature of the oil film bearing is ensured, and the occurrence of the shaft locking fault of the oil film bearing caused by inaccurate temperature measurement is avoided.
The fixed chuck is screwed into the outer side of one end of the movable chuck and is provided with a sealing spigot. The sealing spigot is arranged, so that when the fixed clamping head and the movable clamping head tightly press the locking ring, the end part of the fixed clamping head is fully attached to the locking ring, larger locking force is generated to the center of the locking ring, and the fixing strength of the fixing part to the temperature monitoring part is improved.
The inner side of the movable chuck is provided with a locking surface. The locking surface is arranged on the inner side of the movable clamping head, so that the locking ring can be guided to move towards the center, and the locking force on the temperature monitoring part is improved.
The locking surface is an inclined surface or an arc surface. The locking surface is set to be an inclined surface or an arc surface, so that the friction force of the locking ring in the moving process can be reduced, and the locking ring is easier to lock.
The locking ring is provided with a sealing surface, and the profile of the sealing surface is consistent with that of the locking surface on the inner side of the movable chuck. The sealing surface with the same outline as the locking surface is arranged, so that the degree of matching with the movable chuck and the fixed chuck can be improved, and the tightness of the positioning rod of the temperature monitoring part can be improved.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the wireless monitoring device applied to the running temperature of the oil film bearing, when the temperature monitoring part is fixed on the oil film bearing through the fixing part, the temperature monitoring part can axially move along the fixing part, so that the temperature monitoring part can be adjusted on the oil film bearing, the temperature monitoring part can reach an optimal temperature measuring point, and accurate temperature data measurement is ensured; meanwhile, the temperature monitoring part is adjusted on the fixing part, so that the installation requirements of different oil film bearings can be met, and the application range of the wireless monitoring device is wider;
2. According to the wireless monitoring device applied to the oil film bearing running temperature, the positioning rod is arranged between the seat body and the probe, so that the positioning rod can move on the fixed part, the wireless monitoring device can have a certain adjusting distance, and the problem that the temperature measuring points of different oil film bearings are inconsistent is solved;
3. according to the wireless monitoring device applied to the running temperature of the oil film bearing, the side surface, close to the flange, of the annular groove is set to be the inclined surface, so that when the end cover is screwed, the sealing ring moves along the inclined surface towards the inside of the annular groove, the sealing ring is prevented from moving along the radial direction of the seat body, and the sealing effect is reduced;
4. According to the wireless monitoring device applied to the oil film bearing operating temperature, the positioning rod is connected with the probe through welding, so that the integration between the positioning rod and the probe can be increased, the strength of a workpiece is improved, the breakage in the working process is avoided, and the stable operation of the wireless monitoring device is ensured;
5. according to the wireless monitoring device applied to the running temperature of the oil film bearing, the sealing spigot is arranged, so that when the fixed clamping head and the movable clamping head compress the locking ring, the end part of the fixed clamping head is fully attached to the locking ring, a larger locking force is generated to the center of the locking ring, and the fixing strength of the fixing part to the temperature monitoring part is improved;
6. The wireless monitoring device for the running temperature of the oil film bearing is characterized in that the locking surface is arranged on the inner side of the movable chuck, so that the locking ring can be guided to move towards the center, the locking force of the temperature monitoring part is improved, the sealing surface with the same outline as the locking surface is arranged, the degree of matching with the movable chuck and the fixed chuck can be improved, and the tightness of the positioning rod of the temperature monitoring part can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention;
FIG. 3 is a schematic view of the structure of the temperature monitoring part of the present invention;
FIG. 4 is a schematic view of a mounting structure of the present invention;
FIG. 5 is a schematic view of a seat structure according to the present invention;
FIG. 6 is a schematic side view of a housing of the present invention;
FIG. 7 is a schematic view of the annular groove structure of the present invention;
FIG. 8 is a schematic view of the structure of the fixing part of the present invention;
FIG. 9 is a schematic view of the moving chuck of the present invention;
FIG. 10 is a schematic side view of the moving jaw of the present invention;
FIG. 11 is a schematic view of the fixed chuck of the present invention;
FIG. 12 is a schematic side view of the stationary chuck of the present invention;
FIG. 13 is a schematic view of the structure of the locking ring of the present invention;
FIG. 14 is a schematic side elevational view of the locking ring of the present invention;
FIG. 15 is a schematic view of the temperature monitoring unit structure of the present invention;
Wherein 1, a temperature monitoring part, 2, a fixing part, 11, an end cover, 12, a sealing ring, 13, a mounting seat, 131, a seat body, 132, a positioning rod, 133, a probe, 134, a cavity, 135, a groove, 136, a component cavity, 137, a flange, 138, an annular groove, 139, a first thread, 21, a fixed chuck, 22, a locking ring, 23, a movable chuck, 24, a fixed thread, 25, a locking thread, 26, a locking surface, 27, a sealing spigot, 28, a sealing surface, 31, a singlechip, 32, a power supply, 33, a temperature sensor, 34 and a radio frequency transmitter.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
As shown in fig. 1-3, a wireless monitoring device applied to the running temperature of an oil film bearing comprises a temperature monitoring part 1 and a fixing part 2, wherein the fixing part 2 is sleeved on the temperature monitoring part 1, and the fixing part 2 can move along the axial direction of the temperature monitoring part 1; the fixing part 2 can move along the axial direction of the temperature monitoring part 1 to realize the adjustment of different positions on the temperature monitoring part 1, thereby adjusting the installation depth of the temperature monitoring part 1, and enabling the temperature monitoring part 1 to adapt to different oil film bearings for installation, the temperature monitoring part 1 comprises an installation seat 13, a temperature monitoring unit, an end cover 11 and a sealing ring 12, the installation seat 13 is a seat body 131 with one open end, the cross section of the installation seat 13 can be round or polygonal, in the application, the cross section of the installation seat 13 is round, one open end of the installation seat 13 is provided with the end cover 11, the installation seat 13 and the end cover 11 are in threaded connection, the material of the end cover 11 is nylon, the wireless data transmission can be ensured, the shielding of the wireless data caused by the metal is avoided, the data transmission effect is influenced, the sealing ring 12 is arranged between the mounting seat 13 and the end cover 11, because the oil film bearing has a severe use environment and often contains liquid such as lubricating oil, the sealing ring 12 is arranged between the mounting seat 13 and the end cover 11, the tightness of the mounting seat 13 can be ensured, the normal operation of the internal elements is ensured, the temperature monitoring unit is arranged in the seat body 131 and is used for measuring the operation temperature of the oil film bearing and calculating the measured temperature value, the temperature value meeting the condition is transmitted to the data receiver through a wireless signal by the calculation, and one end of the mounting seat 13 which is not opened is inserted into the oil film bearing; as shown in fig. 8, the fixing portion 2 includes a fixed chuck 21, a locking ring 22 and a movable chuck 23, the fixed chuck 21 is sleeved on the temperature monitoring portion 1, the movable chuck 23 is connected with the fixed chuck 21 through a locking thread 25, and the locking ring 22 is disposed between the fixed chuck 21 and the movable chuck 23. When the wireless monitoring device is fixed on the oil film bearing through the fixing part 2, the temperature monitoring part 1 can axially move along the fixing part 2, so that the adjustment of the temperature monitoring part 1 on the oil film bearing is realized, the temperature monitoring part 1 can reach an optimal temperature measuring point, and the accurate measurement of temperature data is ensured; meanwhile, the temperature monitoring part 1 is adjusted on the fixing part 2, so that the installation requirements of different oil film bearings can be met, and the application range of the wireless monitoring device is wider.
As shown in fig. 4-6, the mounting base 13 includes a base 131, one end of the base 131 is provided with a positioning rod 132, specifically, the positioning rod 132 is a hollow tube, the fixing portion 2 is sleeved on the positioning rod 132, and can move along the axial direction of the positioning rod 132, the length of the positioning rod 132 is the moving length of the fixing portion 2, that is, the distance that the temperature monitoring portion 1 can achieve adjustment, the end of the positioning rod 132 is provided with a probe 133, specifically, the probe 133 is a hollow tube, the end is closed, a cavity 134 for placing the temperature sensor 33 is formed, one end of the probe 133 is inserted into the interior of the oil film bearing, up to a temperature measuring point of the oil film bearing, the probe 133 reaches the optimal temperature measuring point of the oil film bearing through adjusting the relative position between the fixing portion 2 and the positioning rod 132, the other end of the base 131 is provided with a component cavity 136 extending towards the interior of the base 131, the component cavity 136 is communicated with the positioning rod 132 and the probe 133, the outer surface of the base 131 is provided with a cavity 133, the outer surface of the base 131 is provided with a flange 137 which is wound around the base 131, the first end cap 137 is arranged on the outer surface of the base 131, the base 131 is provided with an annular flange 139, and the first end cap 139 is arranged on the side of the base 11 through the annular flange 13, and the annular flange 139 is arranged on the annular flange 13, and the annular flange is placed between the base 131 is screwed on the end cap 11, and the end cap is screwed on the end cap is placed on the end cap 11, and the end cap is placed on the flange 139. The positioning rod 132 is arranged between the seat 131 and the probe 133, so that the positioning rod 132 can move on the fixed part 2, and the wireless monitoring device can have a certain adjusting distance, thereby meeting the problem of inconsistent temperature measurement points of different oil film bearings.
As shown in fig. 7, the surface of the annular groove 138 on the side of the flange 137 is an inclined surface, and the inclined surface is inclined from the top to the bottom of the annular groove 138 to the side of the flange 137. The side surface of the annular groove 138, which is close to the flange 137, is provided with an inclined surface, so that when the end cover 11 is screwed, the sealing ring 12 moves along the inclined surface in the annular groove 138, the radial movement of the sealing ring 12 along the base 131 is avoided, and the sealing effect is reduced.
The positioning rod 132 is connected with the probe 133 by welding. Specifically, the one end of locating lever 132 is fixed on pedestal 131, the other end is connected with probe 133, the one end of locating lever 132 towards probe 133 is equipped with the recess 135 that extends towards locating lever 132 inside, the internal diameter of recess 135 slightly is greater than the external diameter of probe 133, can make probe 133 insert and not rock, the degree of depth that recess 135 extends to inside is not greater than the third of locating lever 132 total length, set up recess 135, insert the recess 135 with probe 133 in, then weld locating lever 132 and probe 133 together, be connected locating lever 132 and needle through the welding, can increase the integrality between locating lever 132 and the probe 133, improve work piece intensity, avoid breaking in the course of the work, guarantee wireless monitoring device's steady operation.
The length of the positioning rod 132 is 100 mm-150 mm. The positioning rod 132 is arranged between 100mm and 150mm, so that the installation and adjustment requirements of the temperature monitoring part 1 can be met, unnecessary excess length can not be generated, raw materials are saved, the production cost is reduced, the diameter of the positioning rod 132 is 8-10 mm, the diameter of the positioning rod 132 is arranged between 8-10 mm, the strength of the positioning rod 132 can be ensured, the positioning rod 132 is not easy to bend, the volume of the fixing part 2 is not easy to be excessively large, the installation of the temperature monitoring part 1 is facilitated, and as an optimal implementation mode, the length of the positioning rod 132 is 113mm, and the diameter of the positioning rod 132 is 9mm.
The length of the probe 133 is: 300 mm-400 mm. The length of the probe 133 is set between 350mm and 400mm, so that the strength of the probe 133 can be ensured, damage in the use process is avoided, the probe can be matched with the positioning rod 132, the end part of the probe 133 reaches an optimal temperature measuring point of an oil film bearing, the accuracy of measuring the temperature of the oil film bearing is ensured, the condition that the oil film bearing is subjected to shaft locking fault due to inaccurate temperature measurement is avoided, the diameter of the probe 133 is 5-8 mm, the probe 133 cannot be bent in the use process, the thermistor in the probe 133 is damaged, the accuracy of temperature measurement is affected, meanwhile, the diameter of the probe 133 is smaller than the diameter of the positioning rod 132, the connection with the positioning rod 132 is firmer, and as an optimal implementation mode, the length of the probe 133 is 365mm, and the diameter of the probe 133 is 6mm.
As shown in fig. 11-12, a sealing spigot 27 is arranged at the outer side of one end of the fixed chuck 21 screwed into the movable chuck 23. When the fixed chuck 21 and the movable chuck 23 press the locking ring 22, the sealing spigot 27 is provided, so that the end portion of the fixed chuck 21 is sufficiently bonded to the locking ring 22, a larger locking force is generated toward the center of the locking ring 22, and the fixing strength of the fixing portion 2 to the temperature monitoring portion 1 is improved.
As shown in fig. 9-10, the inner side of the movable clamp 23 is provided with a locking surface 26. The locking surface 26 is provided on the inner side of the movable clamp 23, and can guide the locking ring 22, thereby moving the locking ring 22 toward the center and improving the locking force to the temperature monitoring unit 1.
The locking surface 26 is an inclined surface or an arc surface. The locking surface 26 is an inclined surface or an arc surface, so that the friction force of the locking ring 22 in the moving process can be reduced, and the locking ring 22 is easier to lock.
As shown in fig. 13-14, the locking ring 22 is provided with a sealing surface 28, and the sealing surface 28 conforms to the contour of the locking surface 26 on the inner side of the movable clamp head 23. The sealing surface 28 with the same outline as the locking surface 26 is arranged, so that the matching degree with the movable clamp head 23 and the fixed clamp head 21 can be improved, and the sealing performance with the positioning rod 132 of the temperature monitoring part 1 can be improved.
The application relates to a mounting mode of a wireless monitoring device applied to the running temperature of an oil film bearing, which comprises the following steps of inserting a probe 133 into a measuring hole on the oil film bearing, fixing a fixed part 2 on the oil film bearing through a fixed thread 24, namely, fixing a movable chuck 23 of the fixed part 2 with the oil film bearing, and simultaneously arranging a metal gasket between the fixed part 2 and the oil film bearing to avoid loosening of the fixed part 2 in the working process of the oil film bearing.
As shown in fig. 15, the temperature monitoring unit includes a single-chip microcomputer 31, a temperature sensor 33, a radio frequency transmitter 34 and a power supply 32, wherein an input end of the single-chip microcomputer 31 is connected with the temperature sensor 33, an output end of the single-chip microcomputer 31 is connected with the radio frequency transmitter 34, and the power supply 32 is connected with the single-chip microcomputer 31 to supply power to the single-chip microcomputer. The temperature monitoring unit adopts the singlechip 31 to process data, so that the data processing speed can be improved, and the accuracy of data processing is ensured. The singlechip 31 adopts an MSP430 singlechip 31. The singlechip 31 with the model number MSP430-AFE233 of TI company is adopted, so that the power consumption of the temperature monitoring unit can be reduced, the charging times of the temperature monitoring part 1 can be reduced, and the service time of the temperature monitoring part 1 can be prolonged. The radio frequency transmitter 34 employs a LORA-SX1278 monolithic radio frequency transmitter 34. The radio frequency transmitter 34 adopts the LORA-SX1278 single-chip radio frequency transmitter 34 and the universal 433MHz wireless transmission frequency, so that the data transmission is more stable and reliable, and the safety of the data transmission is ensured. The temperature sensor 33 is a platinum resistance temperature sensor 33. The platinum resistance temperature sensor 33 is adopted, so that the sensitivity is high, the temperature change of the bearing can be accurately acquired, and the temperature data acquisition of the bearing is more accurate. The platinum resistance temperature sensor 33 has a measuring range of-20 ℃ to 200 ℃ and a wider temperature measuring range, and the platinum resistance temperature sensor 3314 is prevented from being damaged beyond the highest testing temperature.
The temperature measurement and operation process of the wireless monitoring device applied to the oil film bearing running temperature is as follows: the singlechip 31 adopts a timing working mode, a set time period t=2s, every interval time period T, the temperature monitoring unit collects the temperature of the oil film bearing once, the collected temperatures are T1 and T2 … … respectively, the singlechip 31 judges whether the temperature of the oil film bearing base is changed or not in the later period compared with the temperature of the oil film bearing base in the previous period, if the temperature of the oil film bearing base is changed, the radio frequency transmitter 34 is awakened, new temperature data are transmitted through the radio frequency transmitter 34, if the temperature of the oil film bearing base is not changed, whether the last data transmission is up to 3 minutes is judged, if the last data transmission is not up to 3 minutes, and if the last data are up to 3 minutes, the new temperature data are transmitted through the radio frequency transmitter 34. The working mode greatly reduces the power consumption of the temperature detection device, prolongs the service time of the temperature monitoring unit, and meets the long-term and reliable working requirements of oil film bearing base temperature measurement. The temperature monitoring unit structure and the operation processing process of the temperature data in the patent are already disclosed technologies, and are not repeated here as innovation points.
The foregoing technical solution is only one embodiment of the present invention, and various modifications and variations can be easily made by those skilled in the art based on the application methods and principles disclosed in the present invention, not limited to the methods described in the foregoing specific embodiments of the present invention, so that the foregoing description is only preferred and not in a limiting sense.
Claims (10)
1. The wireless monitoring device for the running temperature of the oil film bearing is characterized by comprising a temperature monitoring part and a fixing part, wherein the fixing part is sleeved on the temperature monitoring part and can move along the axial direction of the temperature monitoring part; the temperature monitoring part comprises a mounting seat, a temperature monitoring unit, an end cover and a sealing ring, wherein the mounting seat is a seat body with an opening at one end, the end cover is arranged at one end of the opening of the mounting seat, the sealing ring is arranged between the mounting seat and the end cover, the temperature monitoring unit is arranged in the seat body, and one end of the mounting seat, which is not opened, is inserted into the oil film bearing; the fixed part comprises a fixed chuck, a locking ring and a movable chuck, the fixed chuck is sleeved on the temperature monitoring part, the movable chuck is connected with the fixed chuck through locking threads, and the locking ring is arranged between the fixed chuck and the movable chuck;
The temperature monitoring unit comprises a single chip microcomputer, a temperature sensor, a radio frequency transmitter and a power supply, wherein the input end of the single chip microcomputer is connected with the temperature sensor, the output end of the single chip microcomputer is connected with the radio frequency transmitter, and the power supply is connected with the single chip microcomputer to supply power to the single chip microcomputer.
2. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 1, wherein the mounting seat comprises a seat body, one end of the seat body is provided with a positioning rod, the tail end of the positioning rod is provided with a probe, the other end of the seat body is provided with an opening, the opening end of the seat body is provided with a cavity extending towards the inside of the seat body, the outer surface of the seat body is provided with a flange arranged around the seat body, one side of the opening end of the outer surface of the seat body is provided with a first thread, and an annular groove is arranged between the flange and the first thread.
3. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 2, wherein the surface of the annular groove on one side of the flange is an inclined surface, and the inclined surface is inclined from the top of the annular groove to the bottom of the groove to one side of the flange.
4. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 2, wherein the positioning rod is connected with the probe by welding.
5. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 4, wherein the length of the positioning rod is 100 mm-150 mm.
6. The wireless monitoring device for oil film bearing operating temperature of claim 4, wherein the probe has a length of: 300 mm-400 mm.
7. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 1, wherein a sealing spigot is arranged at the outer side of one end of the fixed chuck screwed into the movable chuck.
8. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 1, wherein the inner side of the movable chuck is provided with a locking surface.
9. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 8, wherein the locking surface is an inclined surface or an arc surface.
10. The wireless monitoring device for the operating temperature of the oil film bearing according to claim 1, wherein the locking ring is provided with a sealing surface, and the sealing surface is consistent with the contour of the locking surface on the inner side of the movable chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721993.4A CN110274702B (en) | 2019-08-06 | 2019-08-06 | Wireless monitoring device applied to oil film bearing running temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721993.4A CN110274702B (en) | 2019-08-06 | 2019-08-06 | Wireless monitoring device applied to oil film bearing running temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110274702A CN110274702A (en) | 2019-09-24 |
| CN110274702B true CN110274702B (en) | 2024-05-24 |
Family
ID=67965947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910721993.4A Active CN110274702B (en) | 2019-08-06 | 2019-08-06 | Wireless monitoring device applied to oil film bearing running temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110274702B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI814249B (en) * | 2022-02-11 | 2023-09-01 | 中國鋼鐵股份有限公司 | Method for monitoring temperature of work roll bearing |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4376389A (en) * | 1979-11-26 | 1983-03-15 | Hitachi, Ltd. | Method of diagnosis of operating conditions of bearing and apparatus therefor |
| CN201974714U (en) * | 2011-01-07 | 2011-09-14 | 新疆八一钢铁股份有限公司 | Improved oil film bearing temperature monitoring device |
| CN102937488A (en) * | 2012-11-19 | 2013-02-20 | 上海交通大学 | Real-time measuring device and method capable of measuring dynamic oil membrane pressure distribution and temperature of tilting-pad sliding bearings |
| CN103837248A (en) * | 2014-03-11 | 2014-06-04 | 中国航空动力机械研究所 | Fixing device of bearing thermal probe |
| CN106500860A (en) * | 2016-10-31 | 2017-03-15 | 河北工业大学 | A kind of oil film bearingses pressure and the method for three-dimensional measurement of oil film temperature |
| CN106768425A (en) * | 2016-12-21 | 2017-05-31 | 湖南崇德工业科技有限公司 | For the temperature element of bearing |
| CN206670801U (en) * | 2017-04-25 | 2017-11-24 | 南京紫台星河电子有限责任公司 | Motor-car extension type temperature transducer |
| CN206945162U (en) * | 2017-05-25 | 2018-01-30 | 哈尔滨电机厂有限责任公司 | A kind of bulb water turbine thrust bearing segment temperature monitoring structure |
| CN209069447U (en) * | 2018-12-03 | 2019-07-05 | 济南雷宁工程技术有限公司 | A kind of wireless temperature detecting device applied to rolling mill bearing pedestal thermometric |
| CN210036988U (en) * | 2019-08-06 | 2020-02-07 | 济南雷宁工程技术有限公司 | Wireless monitoring device applied to oil film bearing operating temperature |
-
2019
- 2019-08-06 CN CN201910721993.4A patent/CN110274702B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4376389A (en) * | 1979-11-26 | 1983-03-15 | Hitachi, Ltd. | Method of diagnosis of operating conditions of bearing and apparatus therefor |
| CN201974714U (en) * | 2011-01-07 | 2011-09-14 | 新疆八一钢铁股份有限公司 | Improved oil film bearing temperature monitoring device |
| CN102937488A (en) * | 2012-11-19 | 2013-02-20 | 上海交通大学 | Real-time measuring device and method capable of measuring dynamic oil membrane pressure distribution and temperature of tilting-pad sliding bearings |
| CN103837248A (en) * | 2014-03-11 | 2014-06-04 | 中国航空动力机械研究所 | Fixing device of bearing thermal probe |
| CN106500860A (en) * | 2016-10-31 | 2017-03-15 | 河北工业大学 | A kind of oil film bearingses pressure and the method for three-dimensional measurement of oil film temperature |
| CN106768425A (en) * | 2016-12-21 | 2017-05-31 | 湖南崇德工业科技有限公司 | For the temperature element of bearing |
| CN206670801U (en) * | 2017-04-25 | 2017-11-24 | 南京紫台星河电子有限责任公司 | Motor-car extension type temperature transducer |
| CN206945162U (en) * | 2017-05-25 | 2018-01-30 | 哈尔滨电机厂有限责任公司 | A kind of bulb water turbine thrust bearing segment temperature monitoring structure |
| CN209069447U (en) * | 2018-12-03 | 2019-07-05 | 济南雷宁工程技术有限公司 | A kind of wireless temperature detecting device applied to rolling mill bearing pedestal thermometric |
| CN210036988U (en) * | 2019-08-06 | 2020-02-07 | 济南雷宁工程技术有限公司 | Wireless monitoring device applied to oil film bearing operating temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110274702A (en) | 2019-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207540471U (en) | Oscillating bearing gap detection device | |
| CN110715753B (en) | Device and method for online monitoring of oil film temperature of composite thrust bearing | |
| CN110274702B (en) | Wireless monitoring device applied to oil film bearing running temperature | |
| CN210036988U (en) | Wireless monitoring device applied to oil film bearing operating temperature | |
| CN203100944U (en) | Drilling tool external screw thread stress condition detection device | |
| CN101116876A (en) | Assembled inner-hole riser block-free type sensing roller | |
| CN118066964A (en) | Tapered roller bearing precision measuring device | |
| JP2000275122A (en) | Method and device for detecting amount of pre-load of rolling bearing | |
| CN111122152A (en) | Sealing washer moment detection device that skids | |
| CN109059830B (en) | Bolt elongation detection device | |
| CN208902000U (en) | Metal material measuring thickness device | |
| CN202101655U (en) | Large ball bearing measuring instrument | |
| CN108303013B (en) | Groove diameter coaxial measuring gauge with folding and expanding functions | |
| CN207540707U (en) | A kind of online thrust measurement instrument in mechanical type rotating shaft end | |
| AU2017100872A4 (en) | Easily-operated shaft extension length detection device | |
| CN208968749U (en) | A kind of dynamic and static ring end face contact pressure real-time and precise regulating mechanism | |
| CN213120391U (en) | Special detection tool for detecting axial clearance value of third-generation hub bearing | |
| CN111804737B (en) | Strain type plate shape gauge | |
| CN210922487U (en) | Crankshaft journal contact area detection tool | |
| CN113758864A (en) | Thread friction coefficient detection device | |
| CN211346649U (en) | Tool for detecting span length of inner gear ring of slewing bearing | |
| CN111337115A (en) | Turbine rotor shimmy measuring device and measuring method | |
| CN111442709B (en) | Angle-adjustable large-cone-angle tapered roller bearing raceway angle measuring device | |
| CN220541941U (en) | Bearing play detection device | |
| CN109974654A (en) | A kind of seamless flatness measurement roll |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |