CN209858086U - Layered curing entity temperature sensor - Google Patents
Layered curing entity temperature sensor Download PDFInfo
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- CN209858086U CN209858086U CN201920596187.4U CN201920596187U CN209858086U CN 209858086 U CN209858086 U CN 209858086U CN 201920596187 U CN201920596187 U CN 201920596187U CN 209858086 U CN209858086 U CN 209858086U
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Abstract
The utility model relates to a layered curing entity temperature sensor, including thermal resistor body, signal converter and heat jacket pipe, heat jacket pipe one end is sealed, and the other end is provided with signal converter, the thermal resistor body passes through the wire and links to each other with signal converter, the heat jacket pipe divide into four cavitys, and first cavity is located the blind end of heat jacket pipe, is used for solidifying the thermal resistor spare; the second cavity is positioned above the first cavity and used for thermally isolating the thermal resistor and the signal converter; the third cavity surrounds the first cavity and the second cavity and is used for curing and sealing the first cavity and the second cavity; the fourth cavity is located above the third cavity, surrounds the signal converter and is used for soft sealing the signal converter. The utility model discloses reached high resistance to compression, resistant vibration, intelligent output standard signal's purpose, prolonged life.
Description
Technical Field
The utility model relates to a temperature measurement technical field especially relates to a layered curing entity temperature sensor.
Background
With the rapid development of scientific technology and the increasing automation of the production process, the product quality and the labor productivity are greatly improved, and the consumption of materials and energy is reduced, thereby improving the requirements on the measurement precision of each parameter in scientific experiments and the production process. In the process flow of various departments of national economy, in particular large and medium-sized enterprises, temperature is one of the most important parameters. According to incomplete statistics, it accounts for about 60% of thermal parameter measurement points on average. Therefore, the quality of temperature detection often directly affects the quality of the production process and the quality of the product to a great extent.
Sensor technology is applied to mechanical engineering, and engineering machinery manufacturers and suppliers can more effectively solve some key problems of a construction site by optimizing engineering machinery engines and hydraulic systems through the sensor technology. Operator fatigue and skill, safety and accuracy of work, wear on equipment, down time, reduced emissions and higher fuel efficiency requirements, etc., which can all be varied by sensor technology.
The application of the sensor technology in the engineering machinery mainly comprises three aspects: firstly, controlling the working condition of the engine; secondly, controlling a hydraulic system; and thirdly, controlling the overall performance of the engineering machine. The temperature sensors used by the engineering machinery in the diesel engine are of the following types: a sensor for measuring and controlling the liquid level of fuel oil and the liquid level of engine oil and a temperature sensor for controlling temperature. The hydraulic transmission system also plays an important role in the transmission of modern engineering machinery, and is not only applied to main working mechanisms, such as the transmission of an excavating mechanism of an excavator and a vibrating mechanism of a vibratory roller, but also widely applied to a walking system, a steering system and some servo mechanisms of the modern engineering machinery. The sensor applied in the hydraulic system mainly comprises a temperature sensor for controlling the temperature of hydraulic oil; a pressure sensor for controlling the pressure of the hydraulic oil; a flow sensor for controlling leakage and flow; a liquid level sensor for controlling the liquid level of the hydraulic oil, and the like.
The working environment of the engineering machinery is severe, in order to improve the working safety and working performance of the engineering machinery, the overall performance of the machinery needs to be effectively controlled, and sensors applied to the aspect mainly comprise a main working mechanism and a brake system abrasion detection sensor; a limit balance sensor for controlling the trafficability of the whole machine; a control overload pressure sensor for overloading the loading machine; the distance sensor is used for controlling the thickness of a spreading layer of the paver; the temperature sensor is used for controlling the material temperature of the mixing station; in addition, there are temperature type, humidity type, and light amount type sensors for controlling conditions such as temperature, humidity, and light of a cabin of a construction machine.
At present, various commonly used temperature sensors are generally applied to the field of engineering machinery, so that the defects of short service life, large temperature measurement precision fluctuation, poor sensor repeatability and stability and the like can be caused, the high requirement of the field of engineering machinery on temperature control can not be well met, the requirements on equipment abrasion, downtime, emission reduction and higher fuel efficiency can not be ensured, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a layered curing entity temperature sensor is provided for temperature sensor has high resistance to compression and the characteristic of resistant vibration.
The utility model provides a technical scheme that its technical problem adopted is: the layered curing entity temperature sensor comprises a thermal resistor body, a signal converter and a thermal sleeve, wherein one end of the thermal sleeve is closed, the other end of the thermal sleeve is provided with the signal converter, the thermal resistor body is connected with the signal converter through a lead, the thermal sleeve is divided into four cavities, and a first cavity is positioned at the closed end of the thermal sleeve and used for curing the thermal resistor body; the second cavity is positioned above the first cavity and used for thermally isolating the thermal resistor and the signal converter; the third cavity surrounds the first cavity and the second cavity and is used for curing and sealing the first cavity and the second cavity; the fourth cavity is located above the third cavity, surrounds the signal converter and is used for soft sealing the signal converter.
The thermal resistance part consists of a thermal resistance temperature sensing element and a heat-shrinkable sleeve, the thermal resistance temperature sensing element is wrapped in the heat-shrinkable sleeve after the heat-shrinkable sleeve is shrunk, and sealing glue is filled at openings at two ends of the heat-shrinkable sleeve.
The first cavity is of a cone structure, the cone of the cone structure is close to the closed end of the heat sleeve, and the first cavity is filled with a curing material.
And the second cavity is filled with a heat insulating material.
And hard sealing materials are filled in the third cavity.
And soft sealant is filled in the fourth cavity.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses set the heat sleeve pipe of sensor into four cavitys, through filling different fillers to four cavitys and carrying out the solidification and effectively form an entity with the sensor, the high resistance to compression of temperature sensor has been reached, vibration-resistant, the purpose of intelligent output standard signal, it is relatively poor to have avoided the anti high pressure of prior art product, vibration-resistant performance, lead to life weak point, the temperature measurement precision is undulant big, defects such as sensor repeatability and poor stability, the sensor is improved engineering machine tool field strong adaptability, intelligent degree is high, repeatability and stability are good, long service life's the effect that is showing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The embodiment of the utility model relates to a layered curing entity temperature sensor, as shown in figure 1, including thermal resistor body 1, signal converter 7 and thermal sleeve 5, one end of thermal sleeve 5 is sealed, and the other end is provided with signal converter 7, thermal resistor body 1 passes through the wire and links to each other with signal converter 7, thermal sleeve 5 divides into four cavitys, and first cavity 3 is located the blind end of thermal sleeve, is used for solidifying thermal resistor 1; the second cavity 4 is positioned above the first cavity 3 and is used for thermally isolating the thermal resistor and the signal converter; the third cavity 6 surrounds the first cavity 3 and the second cavity 4 and is used for curing and sealing the first cavity 3 and the second cavity 4; the fourth cavity 8 is located above the third cavity 6 and surrounds the signal converter 7 for soft sealing the signal converter 7.
In this embodiment, the thermal resistance temperature sensing element 2 is encapsulated in a section of heat-shrinkable sleeve, when the heat-shrinkable sleeve is at a temperature of 250 ℃, thermal shrinkage behavior can occur, the thermal resistance temperature sensing element 2 is wrapped in the heat-shrinkable sleeve, then organic silica gel with a temperature resistance of-60 to 250 ℃ is filled in two ports of the heat-shrinkable sleeve respectively, and the thermal resistance body 1 obtained after curing has good high and low temperature resistance, water resistance and insulating property.
The first cavity 3 is a curing thermal resistor cavity, the cavity is in a cone structure (which is beneficial to absorption and volatilization of moisture), the cone part of the cone structure is close to the closed end of the thermal sleeve, the thermal resistor 1 is arranged at the bottom of the cavity, then a curing material is filled through a pressurizing device (pg ═ 5Mpa), and after the curing material is cured, the first cavity 3 becomes a gapless high-strength cone solid, wherein the formula of the curing material is as follows: comprises high-purity water with resistivity more than or equal to 18M omega cm, a basf super absorbent, 250-mesh sintered aluminum oxide and special portland cement. Compared with other materials, the curing material has the advantages of small thermal expansion coefficient, no need of heating for room temperature for rapid curing and high curing compressive strength.
The second cavity 4 is a thermal isolation cavity, and the cavity is filled with a thermal insulation material, specifically: the cavity is filled with a magnesium-aluminum material (65 mass percent), a fiber silicate material (25 mass percent) and a small amount of organic and inorganic binders (10 mass percent) with good heat insulation effect under the pressure Pg of 2.5Mpa, and after drying treatment, the heat insulation cavity thermally insulates the heat resistor body 1 and the signal converter 7, so that the solid heat insulation effect is good, the overall strength and the hole closing rate are high, and the temperature resistance is good.
The third cavity 6 is a hard sealing cavity, and hard sealing materials are filled in the cavity, and the hard sealing materials specifically comprise: the technical scheme of filling 50% of epoxy sealant at the bottom layer and 50% of multi-layer quick-drying epoxy resin for packaging is adopted, wherein the shrinkage rate of the epoxy sealant is required to be less than or equal to 1%, and the adhesive force is strong; the latter has high hardness, compression strength higher than 1MPa, excellent water and chemical corrosion resistance, and seals the first cavity and the second cavity after curing.
The fourth cavity 8 is a signal converter soft seal cavity, and high temperature resistant soft seal gum is filled in the cavity, and the fourth cavity specifically comprises: and filling a high-temperature-resistant soft sealant which resists 40-250 ℃ and 50HA in Shore hardness to seal the signal converter 7, wherein the cured signal converter HAs excellent sealing performance, ageing resistance and no deformation, and the whole metal heat sleeve 5 is sealed.
The signal converter 7 in this embodiment uses one block diameterWhen the thermal resistance signal is input, the signal converter outputs a standard signal which accords with the HART protocol, and the intelligent temperature change function is achieved.
Therefore, the utility model discloses set the heat sleeve pipe of sensor to four cavitys, through filling different fillers to four cavitys and carry out the solidification and effectively form an entity with the sensor, finally reach temperature sensor high resistance to compression, resistant vibration, intelligent output standard signal, the function that stability is good, long service life.
Because the layered solidification entity temperature sensor works in a severe working environment of the engineering machinery, the heat sleeve can be made of a high-temperature-resistant and wear-resistant metal material, and the temperature index is more than or equal to 250 ℃. In order to ensure the effect of detecting the temperature of the engineering machinery, the mounting thread of the layered curing solid temperature sensor and the mounting thread of the engineering machinery equipment have good matching degree, and a method of thread precision matching and thread gluing can be adopted, so that the anti-vibration effect is improved.
When the method for acquiring the temperature of the engineering mechanical equipment by using the layered solidification entity temperature sensor is used, firstly, an adaptive metal winding gasket is added on a thread sealing surface of the layered solidification entity temperature sensor, then, the layered solidification entity temperature sensor and the equipment installation surface are screwed in at 90 degrees and are fastened by a spanner, as shown in figure 2, when the equipment is started to work, the layered solidification entity temperature sensor can accurately measure and output intelligent standard signal parameters, and the effect of controlling the safe working temperature of the equipment is achieved by a temperature control device.
Through the experiment record, when adopting the layering solidification entity temperature sensor among this embodiment to experiment, its temperature output effect compares prior art not only intelligent degree height at present, has reached the effect of the high resistance to compression of temperature sensor, resistant vibration, intelligent output standard signal moreover, compares through the experiment, and layering solidification entity temperature sensor compares the life of prior art temperature sensor product and increases more than 8 times, has thoroughly changed the short situation of temperature sensor product life in the past.
Claims (6)
1. A layered curing entity temperature sensor comprises a thermal resistor body, a signal converter and a thermal sleeve, wherein one end of the thermal sleeve is closed, the other end of the thermal sleeve is provided with the signal converter, the thermal resistor body is connected with the signal converter through a lead, and the layered curing entity temperature sensor is characterized in that the thermal sleeve is divided into four cavities, and a first cavity is positioned at the closed end of the thermal sleeve and used for curing the thermal resistor; the second cavity is positioned above the first cavity and used for thermally isolating the thermal resistor and the signal converter; the third cavity surrounds the first cavity and the second cavity and is used for curing and sealing the first cavity and the second cavity; the fourth cavity is located above the third cavity, surrounds the signal converter and is used for soft sealing the signal converter.
2. The layered curing entity temperature sensor of claim 1, wherein the thermal resistance member is composed of a thermal resistance temperature sensing element and a heat shrinkable sleeve, the thermal resistance temperature sensing element is wrapped in the heat shrinkable sleeve after shrinkage, and the openings at two ends of the heat shrinkable sleeve are filled with sealant.
3. The layered solidification entity temperature sensor of claim 1 wherein the first cavity is of a cone configuration having a cone portion proximate the closed end of the heat pipe, the first cavity being filled with the solidification material.
4. The layered solidification entity temperature sensor of claim 1 wherein the second cavity is filled with a thermally insulating material.
5. The layered solidification entity temperature sensor of claim 1 wherein the third cavity is filled with a hard sealing material.
6. The layered curing entity temperature sensor of claim 1, wherein the fourth cavity is filled with a soft sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596187.4U CN209858086U (en) | 2019-04-28 | 2019-04-28 | Layered curing entity temperature sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920596187.4U CN209858086U (en) | 2019-04-28 | 2019-04-28 | Layered curing entity temperature sensor |
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| CN209858086U true CN209858086U (en) | 2019-12-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017910A (en) * | 2019-04-28 | 2019-07-16 | 上海岗崎控制仪表有限公司 | A kind of multi-shell curing entity temperature sensor |
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2019
- 2019-04-28 CN CN201920596187.4U patent/CN209858086U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017910A (en) * | 2019-04-28 | 2019-07-16 | 上海岗崎控制仪表有限公司 | A kind of multi-shell curing entity temperature sensor |
| CN110017910B (en) * | 2019-04-28 | 2024-05-10 | 上海岗崎控制仪表有限公司 | Layered curing entity temperature sensor |
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