CN107702830B - High-temperature-resistant air-cooled shaft type sensor - Google Patents
High-temperature-resistant air-cooled shaft type sensor Download PDFInfo
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- CN107702830B CN107702830B CN201711040183.XA CN201711040183A CN107702830B CN 107702830 B CN107702830 B CN 107702830B CN 201711040183 A CN201711040183 A CN 201711040183A CN 107702830 B CN107702830 B CN 107702830B
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- heat dissipation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2287—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges constructional details of the strain gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A high-temperature-resistant air-cooled shaft type force sensor relates to force sensors. The strain gauge patch is characterized in that the sensor body is of a circular shaft type structure, a circular shaft type pressure-bearing surface is arranged in the middle of the sensor body, the pressure-bearing surface is externally connected with a bearing wheel, axial blind holes are formed in the axis of the sensor body and serve as cold air inlets, axial heat dissipation through grooves are formed in the surface of the pressure-bearing surface of the sensor body at intervals, through holes which are radially communicated with the cold air inlets are formed in the middle of each heat dissipation through groove, radial heat dissipation through holes are formed in the surface of the non-pressure-bearing surface of the sensor body at intervals in a bilateral symmetry mode based on the radial central cross section of the pressure-bearing surface, each heat dissipation through hole is communicated with the cold air inlets, each heat dissipation through hole serves as a heat dissipation hole of the strain gauge patch, and the strain gauge patch is attached to the surface of the non-pressure-bearing surface between every two adjacent 2 radial heat dissipation through holes.
Description
Technical Field
The invention relates to a sensor, in particular to a high-temperature-resistant air-cooled shaft type sensor.
Background
With the maturation of metallurgical technology, continuous casting steel is an important link in the steel production process. The continuous casting apparatus includes: big ladle, middle ladle, crystallizer, secondary cooling zone, etc. Wherein the ladle is a device for holding and transporting molten steel; at present, a ladle turret is used for continuous casting development at home and abroad, and the ladle is weighed because the whole continuous casting production process directly influences the smooth continuous casting production on molten steel metering. The ladle weighing can determine the casting residue of molten steel in the ladle, is favorable for improving the steel yield, can control the liquid level of the tundish, can monitor the height of molten steel in the ladle, find out the critical surface of removable inclusions, and the liquid level control of the tundish provides reliable parameter adjustment for the blank pulling speed in the continuous casting process, is favorable for normal continuous casting production, and ensures no leakage and uninterrupted production. Therefore, the weighing quality and the reliability of the steel ladle in the continuous casting process play a very important role in the aspects of steel quality and work efficiency improvement. At present, the domestic ladle balance is provided with a force sensor, generally a bridge type sensor, under the ladle supporting base, and the temperature of the installation position of the site sensor is very high and can reach 200-250 ℃ because the installation position of the sensor is very close to the position of the ladle and the ladle is not covered. The currently imported Shen Keda bag scale sensor only reaches 150 ℃ at the highest, and can only be used in the field through multilayer insulation and heat insulation protection, but the actual use effect is not ideal, the service life is more than half shorter than that of a normal sensor, and even some heat insulation protection is damaged after being used for less than one month.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant air-cooled shaft type sensor which can be normally used under a high-temperature working condition.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a high temperature resistant forced air cooling shaft type sensor, includes the sensor body and strain gauge paster, its characteristics lie in that, the sensor body is the shaft type structure, is equipped with the shaft type pressure-bearing face in the middle part of the sensor body, and this pressure-bearing face external bearing wheel is equipped with axial blind hole on the sensor body axle center line, and this blind hole is as cold wind import, is equipped with along axial heat dissipation through-groove on the pressure-bearing face surface of the sensor body at intervals, and each heat dissipation through-groove middle part is equipped with the through-hole of cold wind import radial intercommunication, on the non-pressure-bearing face surface of the sensor body, regards pressure-bearing face radial center cross section as the benchmark, and bilateral symmetry interval is provided with radial heat dissipation through-hole, each heat dissipation through-hole with cold wind import intercommunication, each heat dissipation through-hole is as the strainometer paster louvre, and the strainometer paster pastes in the non-pressure-bearing face surface between 2 adjacent radial heat dissipation through-holes.
Further:
the diameter of the circle surrounded by the pressure-bearing surface of the sensor body is larger than that of the circle surrounded by the non-pressure-bearing surface.
The number of the radiating through grooves is 8, and the radiating through grooves are uniformly distributed at intervals.
The number of the heat dissipation through holes is 8, 4 heat dissipation through holes are respectively arranged on the left and the right, every 2 heat dissipation through holes are a pair of heat dissipation through holes and are perpendicular to the cold air inlet, and the heat dissipation through holes of two adjacent pairs are arranged at intervals and are arranged in a non-intersecting cross shape.
Compared with the prior art, the invention has the following beneficial effects:
the air-cooled shaft type sensor adopts a shaft type structure, is more reliable and stable in installation than the traditional bridge type sensor, and is provided with a blind hole axially at the center of one end of the shaft type sensor to serve as a main air inlet of air cooling. Then four pressure-bearing heat dissipation grooves are formed in the cylindrical pressure-bearing surface of the sensor, and through holes are formed in the centers of the grooves and connected with the main air inlet channel. Simultaneously, four through holes are respectively formed in the upper part and the lower part of the non-pressure-bearing part of the sensor and are connected with the main air inlet channel to serve as patch radiating grooves. The sensor strain gauge patch position is exactly in the middle of the 2 patch radiating grooves. Therefore, the high temperature of the sensor patch position can be reduced, and the strain gauge aging can be restrained. When the air cooling shaft type sensor is used, the air cooling shaft type sensor is arranged on the support, and after normal (low) temperature air is input into the cold air inlet through the air compressor, heat is timely dissipated through the heat dissipation groove. Under the effect of air cooling by using normal-temperature air, the sensor can use a high-temperature working condition within 350 ℃, and if low-temperature air is used for cooling, the sensor with the design can resist high temperature of 500-600 ℃. The invention can be normally used under high temperature working condition, and can obviously improve the reliability and prolong the service life. Through experiments, the effect is excellent.
Drawings
Fig. 1 is a schematic structural view (axial cross section) of an embodiment of the present invention.
Fig. 2 is a schematic top view of the external appearance of fig. 1.
Detailed Description
Referring to fig. 1 and 2, a high temperature resistant air cooled shaft type sensor includes a sensor body 1 and a strain gauge patch 2. The reference sign P1 in fig. 1 and 2 is a practically usable mating bracket, P2 is a foundation to be installed outside, and P3 is an outside bearing wheel.
The sensor body 1 is of a circular shaft type structure, a circular shaft type pressure-bearing surface is arranged in the middle of the sensor body 1, the pressure-bearing surface is externally connected with a bearing wheel P3, an axial blind hole 11 is formed in the axis of the sensor body 1, the blind hole 11 is used as a cold air inlet 11, radiating through grooves 111 along the axial direction are formed in the surface of the pressure-bearing surface of the sensor body 1 at intervals, through holes 112 which are radially communicated with the cold air inlet 11 are formed in the middle of each radiating through groove 111, radial radiating through holes 113 are formed in the surface of the non-pressure-bearing surface of the sensor body 1 at intervals which are bilaterally symmetrical with respect to the radial center cross section of the pressure-bearing surface, each radiating through hole 113 is communicated with the cold air inlet 11, each radiating through hole 113 is used as a patch radiating hole, and a patch 2 is attached to the surface of the non-pressure-bearing surface between every 2 radial radiating through holes 113. The number of strain gage patches 2 is designed.
The diameter of the circle surrounded by the pressure bearing surfaces of the sensor body 1 is larger than that of the circle surrounded by the non-pressure bearing surfaces, and the sensor body is in a boss shape. The number of the heat dissipation through grooves 111 is 8, and the heat dissipation through grooves are uniformly distributed at intervals. The number of the heat dissipation through holes 113 is 8, 4 heat dissipation through holes are respectively arranged on the left and the right, every 2 heat dissipation through holes are a pair, are perpendicular to the cold air inlet 11, are arranged at intervals, and are arranged in a non-intersecting cross mode.
Claims (1)
1. The high-temperature-resistant air-cooled shaft type sensor comprises a sensor body and strain gauge patches, and is characterized in that the sensor body is of a circular shaft type structure, a circular shaft type pressure-bearing surface is arranged in the middle of the sensor body, the pressure-bearing surface is externally connected with a bearing wheel, axial blind holes are formed in the axis of the sensor body and serve as cold air inlets, axial heat dissipation through grooves are formed in the surface of the pressure-bearing surface of the sensor body at intervals, through holes which are radially communicated with the cold air inlets are formed in the middle of each heat dissipation through groove, radial heat dissipation through holes are formed in the surface of the non-pressure-bearing surface of the sensor body at intervals in a bilateral symmetry mode based on the radial central cross section of the pressure-bearing surface, each heat dissipation through hole is communicated with the cold air inlets, each heat dissipation through hole serves as a heat dissipation hole of a strain gauge patch, and the strain gauge patches are attached to the surface of the non-pressure-bearing surface between every two adjacent radial heat dissipation through holes;
the diameter of the circle surrounded by the pressure-bearing surface of the sensor body is larger than that of the circle surrounded by the non-pressure-bearing surface; the number of the radiating through grooves is 8, and the radiating through grooves are uniformly distributed at intervals; the number of the heat dissipation through holes is 8, 4 heat dissipation through holes are respectively arranged on the left and the right, every 2 heat dissipation through holes are a pair of heat dissipation through holes and are perpendicular to the cold air inlet, and the heat dissipation through holes of two adjacent pairs are arranged at intervals and are arranged in a non-intersecting cross shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040183.XA CN107702830B (en) | 2017-10-30 | 2017-10-30 | High-temperature-resistant air-cooled shaft type sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040183.XA CN107702830B (en) | 2017-10-30 | 2017-10-30 | High-temperature-resistant air-cooled shaft type sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107702830A CN107702830A (en) | 2018-02-16 |
| CN107702830B true CN107702830B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711040183.XA Active CN107702830B (en) | 2017-10-30 | 2017-10-30 | High-temperature-resistant air-cooled shaft type sensor |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07113682A (en) * | 1993-10-19 | 1995-05-02 | Toshiba Corp | Heating cooking utensils |
| CN2745675Y (en) * | 2004-10-14 | 2005-12-14 | 涟源钢铁集团有限公司 | Rotary cooling device of continuous casting machine revolving platform molten steel weighing electronic scale |
| CN101487732A (en) * | 2009-01-22 | 2009-07-22 | 上海宝钢工程技术有限公司 | Method and weighing apparatus for measuring molten steel ladle weight by axial pin type sensor |
| CN201343355Y (en) * | 2008-12-23 | 2009-11-11 | 上海宝钢工程技术有限公司 | Steel ladle weighing device for shaft pin type sensors on hoisting and lifting equipment |
| CN204085655U (en) * | 2014-09-30 | 2015-01-07 | 河北钢铁股份有限公司承德分公司 | A kind of hot-metal car electronic scale |
| CN104535208A (en) * | 2014-12-02 | 2015-04-22 | 苏州长风航空电子有限公司 | Sensor mounting base with cooling function |
| CN106568544A (en) * | 2016-10-18 | 2017-04-19 | 烟台职业学院 | Sheet metal hot stamping force measurement device |
| CN107052288A (en) * | 2017-06-28 | 2017-08-18 | 青岛云路先进材料技术有限公司 | A kind of chill roll |
| CN107084150A (en) * | 2016-11-10 | 2017-08-22 | 上海沃克通用设备有限公司 | Resisting blower axle |
| CN206522964U (en) * | 2016-12-28 | 2017-09-26 | 深圳市弗赛特科技股份有限公司 | A kind of downhole tool high temperature and pressure test shaft structure |
| CN207472464U (en) * | 2017-10-30 | 2018-06-08 | 莆田市力天量控有限公司 | A kind of high-temperature resistant air cooling shaft type force snesor |
-
2017
- 2017-10-30 CN CN201711040183.XA patent/CN107702830B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07113682A (en) * | 1993-10-19 | 1995-05-02 | Toshiba Corp | Heating cooking utensils |
| CN2745675Y (en) * | 2004-10-14 | 2005-12-14 | 涟源钢铁集团有限公司 | Rotary cooling device of continuous casting machine revolving platform molten steel weighing electronic scale |
| CN201343355Y (en) * | 2008-12-23 | 2009-11-11 | 上海宝钢工程技术有限公司 | Steel ladle weighing device for shaft pin type sensors on hoisting and lifting equipment |
| CN101487732A (en) * | 2009-01-22 | 2009-07-22 | 上海宝钢工程技术有限公司 | Method and weighing apparatus for measuring molten steel ladle weight by axial pin type sensor |
| CN204085655U (en) * | 2014-09-30 | 2015-01-07 | 河北钢铁股份有限公司承德分公司 | A kind of hot-metal car electronic scale |
| CN104535208A (en) * | 2014-12-02 | 2015-04-22 | 苏州长风航空电子有限公司 | Sensor mounting base with cooling function |
| CN106568544A (en) * | 2016-10-18 | 2017-04-19 | 烟台职业学院 | Sheet metal hot stamping force measurement device |
| CN107084150A (en) * | 2016-11-10 | 2017-08-22 | 上海沃克通用设备有限公司 | Resisting blower axle |
| CN206522964U (en) * | 2016-12-28 | 2017-09-26 | 深圳市弗赛特科技股份有限公司 | A kind of downhole tool high temperature and pressure test shaft structure |
| CN107052288A (en) * | 2017-06-28 | 2017-08-18 | 青岛云路先进材料技术有限公司 | A kind of chill roll |
| CN207472464U (en) * | 2017-10-30 | 2018-06-08 | 莆田市力天量控有限公司 | A kind of high-temperature resistant air cooling shaft type force snesor |
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| Publication number | Publication date |
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| CN107702830A (en) | 2018-02-16 |
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