CN112067150B - Mounting structure and mounting method of low-temperature sensor - Google Patents
Mounting structure and mounting method of low-temperature sensor Download PDFInfo
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- CN112067150B CN112067150B CN202010916517.0A CN202010916517A CN112067150B CN 112067150 B CN112067150 B CN 112067150B CN 202010916517 A CN202010916517 A CN 202010916517A CN 112067150 B CN112067150 B CN 112067150B
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- temperature sensor
- temperature
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2203/00—Application of thermometers in cryogenics
Abstract
The invention discloses a mounting structure of a low-temperature sensor, which comprises a hollow screw and a fixing nut which are matched with each other, wherein the fixing nut is arranged in a hollow mode and comprises a screw thread section, an accommodating section and an extending section with the size smaller than that of the accommodating section, a connecting pipe is connected in the hollow screw and comprises a temperature measuring through hole and a connecting pipe sleeve edge which is abutted against the end part of the hollow screw, a temperature sleeve is connected to the temperature measuring through hole, an accommodating groove is formed in the temperature sleeve, the bottom of the accommodating groove is provided with the low-temperature sensor, a mounting boss is arranged in the middle of the outer wall of the temperature sleeve, the diameter of the mounting boss is larger than that of the extending section, the temperature sleeve comprises a connector extending out of the extending section, an adjusting nut is in threaded connection with the connector, an ejector rod is connected to the adjusting nut, and the ejector rod is used for fixing the low-temperature sensor at the bottom of the accommodating groove. Through the arrangement, the low-temperature sensor is convenient to install and replace, and the processing difficulty of the low-temperature container is reduced. The invention also discloses an installation method of the low-temperature sensor.
Description
Technical Field
The invention relates to the technical field of installation of low-temperature sensors, in particular to an installation structure and an installation method of a low-temperature sensor.
Background
Low temperature belongs to extreme technology, is a special field, and the development of low temperature sensors represents the current high-precision technical level to a certain extent. With the continuous expansion of low temperature in military, aviation, aerospace, nuclear, energy, automation, medical, biological, industrial and agricultural technologies, the low temperature condition needs to be determined in time through a low temperature sensor in various application occasions.
At present, when the low-temperature sensor is installed, the sensor is usually adhered to a low-temperature container by adopting low-temperature glue according to conditions such as the appearance of the sensor, the installation mode is limited by the performance of the low-temperature glue, the fixation is not firm, and the replacement is inconvenient.
Disclosure of Invention
A first object of the present invention is to provide a mounting structure of a cryogenic temperature sensor, which has advantages of convenience in installation and replacement.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a low temperature sensor's mounting structure, includes cavity screw rod and fixation nut that mate each other, fixation nut cavity sets up, includes screw thread section, holding section and the size is less than the section that stretches out of holding section, and the hollow screw rod in-connection has the takeover, the takeover includes that the temperature measurement is perforated and is followed with the takeover cover of contradicting of cavity screw rod tip, the takeover is kept away from the one end that connects the pipe cover edge and is used for welding with the low temperature container, temperature measurement perforation department is connected with the temperature sleeve, the storage tank has been seted up to the temperature sleeve, low temperature sensor has been placed to the tank bottom of storage tank, temperature sleeve's outer wall middle part is provided with the installation boss, the installation boss diameter is greater than the section of stretching out, the temperature sleeve includes the connector that stretches out from the section, connector department threaded connection has adjusting nut, the last ejector pin that is connected with of adjusting nut, the ejector pin is with adjusting nut's end seal, the ejector pin is used for fixing the low temperature sensor at the bottom of the accommodating groove.
By adopting the technical scheme, the connecting pipe is connected in a welding mode, the connecting pipe can be welded at a proper position of the low-temperature container according to actual requirements, after welding is completed, the low-temperature sensor can be fixed in the temperature sleeve through the fixing nut, the temperature sleeve and the adjusting bolt, the temperature sleeve is abutted against the low-temperature container, and the temperature of the wall of the low-temperature container is detected through the temperature sleeve; the ejector pin passes through adjusting nut adjusting position, can make the close contact of low temperature sensor and temperature sleeve, guarantees the measuring precision. The invention has small measurement error and convenient installation and replacement of the sensor, saves a penetrating piece between a sensor cable and the wall of the low-temperature container, and reduces the processing difficulty of the low-temperature container.
Further setting: the ejector rod is connected with the adjusting nut through brazing.
Through adopting above-mentioned technical scheme, through brazed mode with ejector pin and adjusting nut welding, firm in connection to the leakproofness is good between ejector pin and the adjusting nut.
Further setting: the temperature sleeve is made of copper.
By adopting the technical scheme, the copper heat conduction coefficient is high, and the detection precision of the low-temperature sensor is improved.
Further setting: the low-temperature sensor comprises a temperature sleeve, a fixing nut and a low-temperature sensor, wherein a first outlet is formed in the side surface of the temperature sleeve, a second outlet is formed in the fixing nut, the first outlet is communicated with the second outlet, the low-temperature sensor comprises a transmission lead, and the first outlet and the second outlet are used for leading out the transmission lead.
Further setting: the internal surface of cavity screw rod is provided with spacing recess, the surface of takeover is provided with spacing sand grip, spacing sand grip is the same with spacing recess size, when the takeover is contradicted with the cavity screw rod, spacing sand grip and spacing recess separation.
Through adopting above-mentioned technical scheme, when fixing nut in advance, the cavity screw rod by spacing, only rotate fixing nut can, after the cavity screw rod is pulled out, the second export on the fixing nut is fixed according to the demand orientation, utilize tools such as spanners to fix the nut, go to rotate the cavity screw rod again, screw up with fixing nut, simple installation.
Further setting: the low temperature sensor still includes the location metal strip, the location metal strip sets up in the edge of low temperature sensor tail end, the location metal strip includes the arc section of orientation low temperature sensor center pin bending, the edge of low temperature sensor is kept away from to the one end that low temperature sensor was kept away from to the location metal strip, transmission wire is attached to on the location metal strip to stretch out the second export under the drive of location metal strip.
Through adopting above-mentioned technical scheme, when installation low temperature sensor, the tip of location metal strip is contradicted with the temperature sleeve lateral wall, warp and get into in the temperature sleeve, and when reacing first exit, the tip of location metal strip stretches into first exit because elastic force, and when the ejector pin got into the temperature sleeve, the ejector pin formed the extrusion to the arc section of location metal strip, made the tip of location metal strip further remove, stretches out simple to operate from the second export.
Further setting: and the inner wall of the temperature sleeve is provided with a guide groove which is axially led to the first outlet.
Through adopting above-mentioned technical scheme, the guide way can be used to guide the location metal strip, can control low temperature sensor fixed in the intraductal direction of temperature sleeve simultaneously, guarantees the accuracy and the uniformity that detect.
Further setting: the positioning metal strip is made of memory alloy.
By adopting the technical scheme, the memory alloy has good shape memory performance, can recover the original shape after being used for a long time, and can be recycled.
Further setting: the holding section is provided with a cross section towards one end of the extending section, the cross section is the same as the cross section of the mounting boss in shape and size, and when the mounting boss is arranged in the holding section, the fixing nut rotates to drive the temperature sleeve to rotate.
Through adopting above-mentioned technical scheme, fixation nut rotates and drives the temperature sleeve pipe and rotate and keep first export stable alignment second export, avoids the low temperature sensor wire to damage.
Another object of the present invention is to provide a method for mounting a cryogenic sensor, which has the advantage of easy installation.
The technical purpose of the invention is realized by the following technical scheme:
a method for mounting a low-temperature sensor adopts the mounting structure of the low-temperature sensor, and comprises the following steps:
sleeving a hollow nut outside a connecting pipe, and then welding the connecting pipe on a low-temperature container;
inserting the temperature sleeve into the connecting pipe, sleeving the fixing nut outside the connecting pipe, loading the low-temperature sensor into the accommodating groove, screwing the adjusting nut, and abutting the low-temperature sensor against the bottom of the accommodating groove of the temperature sleeve;
and step three, screwing the hollow screw rod and the fixing nut to finish installation.
By adopting the technical scheme, an operator can personally complete the installation of the installation structure, the installation and the replacement of the low-temperature sensor are convenient, and the low-temperature sensor can be stably installed and accurately detected.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of example 2;
fig. 3 is a schematic sectional view in the direction of a-a in fig. 2.
In the figure, 1, a hollow screw; 2. fixing a nut; 3. taking over a pipe; 4. connecting the pipe sleeve edges; 5. a temperature jacket; 6. a containing groove; 7. mounting a boss; 8. a connector; 9. adjusting the nut; 10. a top rod; 11. a first outlet; 12. a second outlet; 13. a limiting groove; 14. limiting convex strips; 15. positioning the metal strip; 16. a guide groove; 17. a low temperature sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: a low temperature sensor's mounting structure, as shown in figure 1, includes T-shaped cavity screw rod 1 and with cavity screw rod 1 screw thread fit's fixation nut 2, fixation nut 2 cavity includes screw thread section, holding section and stretches out the section in proper order, screw thread section and cavity screw rod 1 screw rod cooperation. The hollow screw rod 1 is connected with a connecting pipe 3 in a sliding mode, the middle of the connecting pipe 3 is provided with an axial temperature measurement through hole, the end portion of the connecting pipe 3 is provided with a connecting pipe sleeve edge 4 which is abutted against the hollow screw rod 1, and one end, far away from the connecting pipe sleeve edge 4, of the connecting pipe 3 is used for being welded with the side wall of a low-temperature container to be detected. Wear to be equipped with the temperature sleeve pipe 5 of copper product in the temperature measurement perforation, storage tank 6 has been seted up along the axial to temperature sleeve pipe 5, and the outside protrusion in side of temperature sleeve pipe 5 is provided with installation boss 7, and installation boss 7's both ends are contradicted with the extension section of taking over the cover along 4 and fixation nut 2 respectively, and installation boss 7 and take over the cover to lie in the holding section along 4. Temperature sleeve 5 is including stretching out the connector 8 that the section was stretched out from, and connector 8 department is connected with adjusting nut 9, and adjusting nut 9 is cavity, and one section braze welding that adjusting nut 9 kept away from temperature sleeve 5 has ejector pin 10, and inside ejector pin 10 towards temperature sleeve 5, ejector pin 10 was 9 end seal with adjusting nut, and the end of ejector pin 10 is contradicted with low temperature sensor 17 in the storage tank 6.
The installation method of the low-temperature sensor comprises the following steps:
step one, sleeving a hollow bolt outside the connecting pipe 3, and then welding the connecting pipe 3 with the side wall of the low-temperature container;
step two, inserting the temperature sleeve 5 into a temperature measurement through hole of the hollow bolt, sleeving the fixing nut 2 outside the connecting pipe 3, then installing the low-temperature sensor 17 into the accommodating groove 6, screwing the adjusting nut 9, and abutting the low-temperature sensor 17 against the bottom of the accommodating groove 6;
and step three, finally, screwing the hollow screw rod 1 and the fixing nut 2 to finish the installation.
Example 2: a mounting structure of a cryogenic temperature sensor, as shown in fig. 2 and 3, the present embodiment 2 differs from the embodiment 1 in that:
the inner surface of the hollow screw rod 1 is provided with a limiting groove 13, the outer surface of the connecting pipe 3 is provided with a limiting convex strip 14, the size of the limiting convex strip 14 is the same as that of the limiting groove 13, when the connecting pipe 3 is abutted to the hollow screw rod 1, the limiting convex strip 14 is separated from the limiting groove 13, and the distance is 1-2 mm.
The side of the temperature sleeve 5 is provided with a first outlet 11, the fixing nut 2 is provided with a second outlet 12, the side of the first outlet 11 away from the accommodating groove 6 is arc-shaped and is concavely inclined towards the bottom direction of the accommodating groove 6, and the side of the accommodating groove 6 is provided with a guide groove 16 extending to the first outlet 11 from the opening direction. The holding section sets up the cross section towards the one end of stretching out the section and is the same with the shape and the size of the cross section of installation boss 7, and when installation boss 7 was packed into the holding section, first export 11 was aligned with second export 12, and fixation nut 2 rotated and is driven temperature sleeve 5 and rotate.
The low temperature sensor 17 is connected with a transmission wire and a positioning metal strip 15, the transmission wire is attached to the positioning metal strip 15, and the positioning metal strip 15 is made of memory alloy. The positioning metal strip 15 is fixed at the edge of the tail end of the first outlet 11 close to the low-temperature sensor 17, the middle of the positioning metal strip 15 is arc-shaped and is bent towards the axis of the accommodating groove 6, the tail end of the positioning metal strip 15 extends out of the edge of the low-temperature sensor 17 in a natural state, and the transmission lead is attached to the positioning metal strip 15. The width of the tail end of the metal strip 15 is smaller than the width of the guide groove 16.
When installing temperature sensor, earlier align first export 11 and second export 12, will fix a position metal strip 15 and guide way 16 alignment and pack into storage tank 6, fix a position metal strip 15 and take place deformation under guide way 16's conflict effect, produce the effort towards the 16 tank bottoms of guide way, after low temperature sensor 17 reachs the 6 tank bottoms of storage tank, the tail end of location metal strip 15 gets into first export 11, and reach 11 arc departments of first export and keep away from 6 tank bottoms of storage tank department, rethread ejector pin 10's twist, extrude the arc position of location metal strip 15, fix a position metal strip 15 and extend along first export 11 and second export 12, stretch out fixation nut 2 surfaces, thereby bring out the transmission wire.
The installation method of the installation structure of the low-temperature sensor in the embodiment comprises the following steps:
step one, sleeving a hollow bolt outside a connecting pipe 3 along a limiting convex strip 14, and then welding the connecting pipe 3 with the side wall of a low-temperature container;
step two, keeping a contact state between a limiting groove 13 of the hollow bolt and a limiting convex strip 14 on the outer side of the connecting pipe 3, embedding the mounting boss 7 of the temperature sleeve 5 into the accommodating section of the fixing nut 2, then screwing the fixing nut 2 into the hollow bolt, when the connecting pipe is close to a screwing state, circumferentially fixing the fixing nut 2 by using tools such as a spanner according to the direction requirement of a transmission lead, separating the limiting groove 13 of the hollow bolt from the limiting convex strip 14, and rotating the hollow bolt to enable the hollow bolt to be tightly connected with the fixing nut 2 through threads;
and step three, the temperature sensor is arranged in the accommodating groove 6, then the adjusting nut 9 is in threaded connection with the connector 8 of the temperature sleeve 5, and the ejector rod 10 extends into the accommodating groove 6 to eject the positioning metal strip 15 and the transmission lead out of the second outlet 12.
When needing to be changed, firstly unscrew adjusting nut 9, then unscrew fixation nut 2, take out temperature sleeve 5 simultaneously, then take out temperature sleeve 5, then squeeze into storage tank 6 with location metal strip 15 in, location metal strip 15 and guide way 16 contact to because the effect of restoring force, change the storage tank 6 that low temperature sensor 17 took out gradually.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. The utility model provides a low temperature sensor's mounting structure, its characterized in that includes cavity screw rod (1) and fixation nut (2) that mate each other, fixation nut (2) cavity sets up, includes screw thread section, holding section and the size is less than the section that stretches out of holding section, and cavity screw rod (1) in-connection has takeover (3), takeover (3) include temperature measurement perforation and with hollow screw rod (1) tip conflict connect pipe box edge (4), the one end that takeover (3) kept away from pipe box edge (4) is used for with the low temperature container welding, temperature measurement perforation department is connected with temperature sleeve pipe (5), storage tank (6) have been seted up in temperature sleeve pipe (5), low temperature sensor (17) have been placed to the tank bottom of storage tank (6), the outer wall middle part of temperature sleeve pipe (5) is provided with installation boss (7), installation boss (7) diameter is greater than the section that stretches out, the both ends of installation base (7) are contradicted with the section of stretching out of taking over cover edge (4) and fixation nut (2) respectively, and installation base (7) are located the holding section with taking over the cover along (4), temperature sleeve (5) are including connector (8) that stretch out from the section, threaded connection is located to connector (8) has adjusting nut (9), be connected with ejector pin (10) on adjusting nut (9), ejector pin (10) are used for fixing the tank bottom at storage tank (6) with low temperature sensor (17).
2. The mounting structure of a cryogenic temperature sensor according to claim 1, wherein the carrier rod (10) and the adjusting nut (9) are connected by brazing.
3. The mounting structure of a cryogenic temperature sensor according to claim 1, characterized in that the temperature bushing (5) is copper material.
4. The mounting structure of the cryogenic temperature sensor according to claim 1, wherein a first outlet (11) is formed in a side surface of the temperature sleeve (5), a second outlet (12) is formed in the fixing nut (2), the cryogenic sensor (17) includes a transmission lead, and the first outlet (11) and the second outlet (12) are used for leading out the transmission lead.
5. The mounting structure of the cryogenic temperature sensor according to claim 4, wherein a limiting groove (13) is formed in the inner surface of the hollow screw (1), a limiting convex strip (14) is formed in the outer surface of the adapter tube (3), the size of the limiting convex strip (14) is the same as that of the limiting groove (13), and when the adapter tube (3) is abutted against the hollow screw (1), the limiting convex strip (14) is separated from the limiting groove (13).
6. The mounting structure of the cryogenic temperature sensor of claim 5, wherein the cryogenic sensor (17) further comprises a positioning metal strip (15), the positioning metal strip (15) is disposed at an edge of the tail end of the cryogenic sensor (17), the positioning metal strip (15) comprises an arc-shaped section bending towards the central axis of the cryogenic sensor (17), one end of the positioning metal strip (15) far away from the cryogenic sensor (17) is far away from the edge of the cryogenic sensor (17), and the transmission lead is attached to the positioning metal strip (15) and extends out of the second outlet (12) under the driving of the positioning metal strip (15).
7. The mounting structure of the cryogenic temperature sensor according to claim 6, wherein the inner wall of the temperature sleeve (5) is provided with a guide groove (16) leading to the first outlet (11) along the axial direction, and the guide groove (16) is used for guiding the end of the positioning metal strip (15) to move towards the first outlet (11).
8. The mounting structure of a cryogenic temperature sensor according to claim 6, wherein the positioning metal strip (15) is made of a memory alloy.
9. The mounting structure of the cryogenic temperature sensor according to claim 1 or 4, wherein the cross section of one end of the accommodating section facing the extending section is the same as the cross section of the mounting boss (7), and when the mounting boss (7) is mounted in the accommodating section, the fixing nut (2) rotates to drive the temperature sleeve (5) to rotate.
10. A method for mounting a cryogenic temperature sensor is characterized in that: the mounting structure using the cryogenic temperature sensor according to any one of claims 1 to 9, comprising the steps of:
step one, sleeving a hollow nut outside the connecting pipe (3), and then welding the connecting pipe (3) on a low-temperature container;
step two, inserting the temperature sleeve (5) into the connecting pipe (3), sleeving the fixing nut (2) outside the connecting pipe (3), then loading the low-temperature sensor (17) into the accommodating groove (6), screwing the adjusting nut (9), and abutting the low-temperature sensor (17) against the bottom of the accommodating groove (6) of the temperature sleeve (5);
and thirdly, screwing the hollow screw (1) and the fixing nut (2) tightly to finish the installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010916517.0A CN112067150B (en) | 2020-09-03 | 2020-09-03 | Mounting structure and mounting method of low-temperature sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010916517.0A CN112067150B (en) | 2020-09-03 | 2020-09-03 | Mounting structure and mounting method of low-temperature sensor |
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| CN112067150A CN112067150A (en) | 2020-12-11 |
| CN112067150B true CN112067150B (en) | 2022-03-25 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122486A (en) * | 2000-08-11 | 2002-04-26 | Denso Corp | Mounting structure of temperature sensor |
| JP2004239716A (en) * | 2003-02-05 | 2004-08-26 | Ngk Spark Plug Co Ltd | Mounting structure of temperature sensor |
| JP2008215846A (en) * | 2007-02-28 | 2008-09-18 | Denso Corp | Temperature sensor mounting structure |
| CN103776552A (en) * | 2012-10-18 | 2014-05-07 | 威海震宇智能科技有限公司 | Large-aperture temperature sensor |
| CN103698029B (en) * | 2013-11-29 | 2016-07-06 | 北京七星华创电子股份有限公司 | The fixing device of a kind of thermocouple and temperature measuring equipment |
| CN207456638U (en) * | 2017-12-01 | 2018-06-05 | 常州市惠昌传感器有限公司 | Family expenses automatic rinser NTC temperature sensors |
| CN209372248U (en) * | 2018-12-26 | 2019-09-10 | 上海迹冷制冷设备有限公司 | Thermometer bulb fixing seat |
| CN210198589U (en) * | 2019-07-03 | 2020-03-27 | 重庆材料研究院有限公司 | Temperature measuring device for combustion chamber of space furnace |
| CN212871516U (en) * | 2020-09-03 | 2021-04-02 | 浙江赛威科光电科技有限公司 | Mounting structure of low-temperature sensor |
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