CN201740567U - Capacitance type continuous material position sensor - Google Patents
Capacitance type continuous material position sensor Download PDFInfo
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- CN201740567U CN201740567U CN2010202809751U CN201020280975U CN201740567U CN 201740567 U CN201740567 U CN 201740567U CN 2010202809751 U CN2010202809751 U CN 2010202809751U CN 201020280975 U CN201020280975 U CN 201020280975U CN 201740567 U CN201740567 U CN 201740567U
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- insulating sheath
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Abstract
The utility model relates to a capacitance type continuous material position sensor, which is provided with a metal main pole, at least one auxiliary measuring electrode and a plurality of insulating sheaths, wherein the metal main pole is of a two-strand structure formed by a soft conducting steel rope which is folded from the bottom end; the outer side of the metal main pole is sheathed with a protective layer consisting of a plurality of insulating sheaths; the metal main pole penetrates through two main pole through holes of the insulating sheaths; each auxiliary measuring electrode is formed by a soft conducting steel rope with the main pole; each insulating sheath is a cylindrical high-strength insulating material, and also can be of a compound type structure, which is formed by combination of using a metal sleeve to be sheathed on an insulating base in a replacing manner; and the insulating sheath is internally and axially provided with a plurality of through holes, which are respectively two main pole through holes and at least one auxiliary measuring electrode through holes. The capacitance type continuous material position sensor has the advantages of simple structure, long service life, strong impact resistance and wear resistance, real, accurate and reliable measuring signals and calibration signals, and capability of measuring the material position of the material in the measuring bin continuously and accurately.
Description
Technical field
The present invention relates to a kind of modifying device of article position measuring device, specifically a kind of mode with contact is measured the capacitance type continuous material level sensor of height of materials.
Background technology
At instrument field, measure solid material in the feed bin, utilize capacitive transducer to measure, be one of practical method.The applicant's patent 00215270.3, a kind of continuous capacitance sensor is disclosed, it is provided with a metal flexible main pole, the main pole upper end is provided with the fixing ring flange of using, ring flange top is provided with capacitive pick-up, main pole is fixing by insulating mat and ring flange and feed bin insulation, main pole and feed bin bulkhead are respectively a utmost point, constitute and become the medium continuous capacitance, the main pole outside is wrapped with flexible insulating layer, the flexible insulating layer outside is with the protective jacket that one deck is made up of a plurality of high strength insulation short tubes, and at some definite calibration electrodes that highly are provided with.
Say that briefly this continuous capacitance sensor goes for measuring the feed bin height of materials, calibrate electrode simultaneously and can calibrate and demarcate the measurement of main pole.Yet, the flexible metal electrode that the main pole of at first this continuous capacitance sensor adopts is single structure, can't guarantee to be enclosed within the protective jacket in the main pole outside and calibrate electrode relative fixed each other, when protective jacket rotates with the calibration electrode, can cause sensor to damage; Secondly, the protective jacket by the insulation short tube is formed contacts and collides for a long time with material, easily causes serious wearing and tearing, reduction sensor serviceable life, uses under the harsh conditions that can't conform; The 3rd, the calibration electrode of this continuous capacitance sensor is to expose outside, directly contacts with material, easily be short-circuited, and, because of the calibration electrode is that ring set is outside the metal main pole, the calibration electrode can mask whole measuring-signals of this section metal main pole of its correspondence, causes measuring error excessive.
Summary of the invention
Technical problem to be solved in the utility model is in order to overcome above-mentioned the deficiencies in the prior art, to provide a kind of technology simple, reliable in structure, measuring accuracy height, anti abrasive capacitance type continuous material level sensor.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of capacitance type continuous material level sensor, be provided with a metal main pole, the main pole upper end is provided with the fixing ring flange of using, ring flange top is provided with one and is used for capacitive pick-up that electric signal is handled, main pole is fixing by insulating mat and ring flange and feed bin insulation, main pole and feed bin bulkhead are respectively a utmost point, constitute and become the medium continuous capacitance, it is characterized in that very bifilar structure that the compliant conductive cable wire forms from the bottom doubling of master metal, the per share compliant conductive cable wire outside of metal main pole all is covered with flexible insulating layer, the flexible insulating layer outside is with the protective layer that one deck is made up of a plurality of insulating sheaths, be axially arranged with two main pole via holes in the insulating sheath, the bifilar compliant conductive cable wire of metal main pole passes from two main pole via holes of insulating sheath.
The utility model is provided with at least one subsidiary electrode, it is characterized in that each subsidiary electrode follows main pole to form by a compliant conductive cable wire, be axially arranged with at least one subsidiary electrode via hole in the insulating sheath, the every compliant conductive cable wire outside of subsidiary electrode is covered with flexible insulating layer, and passes the subsidiary electrode via hole from insulating sheath.
The utility model is provided with a plurality of insulating sheaths, it is characterized in that being axially arranged with in the described insulating sheath two main pole via holes and at least one subsidiary electrode via hole, two main pole via holes can be two and are communicated with via hole, also can be two independent via holes, mortar head, mortar bowl formula respective outer side edges are adopted in the end of two adjacent insulating sheaths.
The utility model is provided with a plurality of insulating sheaths, it is characterized in that described insulating sheath is a cylindrical high-strength insulating material, insulating sheath also can be composite structure, is combined on an insulating base by a metal sleeve ring set, and the length of metal sleeve is less than the length of insulating base.
The utility model master metal is the bifilar structure that the compliant conductive cable wire forms from the bottom doubling very, the bifilar compliant conductive cable wire of metal main pole passes from two main pole via holes of insulating sheath, metal main pole and insulating sheath interfix each other, efficiently solve that sensor self rotates and the sensor that brings damages, prolonged sensor serviceable life, simultaneously this designs simplification of metal main pole the packaging technology of sensor, make the sensor safety and reliability; Insulating sheath adopts composite structure, and the metal sleeve ring set has increased the shock resistance and the anti-wear performance of sensor self on insulating base, and sensor can adapt under the long-time rugged surroundings and uses; Each subsidiary electrode follows main pole to form by a compliant conductive cable wire of highly determining, the outside is covered with flexible insulating layer, makes rate-aided signal reliable and stable, avoids situation generations such as mistake calibration.
The utility model is simple in structure, and the life-span is long, and impact resistance and antiwear property are strong, and measuring-signal and rate-aided signal are true, accurate, reliable, accomplishes continuously, accurately measures the thing position of material in the storehouse.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 is the utility model structural representation;
Fig. 2 is a partial sectional view of the present utility model;
Fig. 3 is an insulating base structural representation of the present utility model;
Fig. 4 is a metal sleeve structural representation of the present utility model;
The structural representation of Fig. 5 insulating sheath that to be the utility model be composited by insulating base and metal sleeve.
Label among the figure is: 1. metal main pole, 2. flexible insulating layer, 3. subsidiary electrode, 4. insulating sheath, 5. capacitive pick-up, 6. metal sleeve, 7. insulating base.
Embodiment
Below in conjunction with drawings and Examples the utility model is done detailed description.
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, among Fig. 5 as can be seen, the utility model is provided with a metal main pole 1, main pole 1 upper end is provided with the fixing ring flange of using, ring flange top is provided with one and is used for capacitive pick-up 5 that electric signal is handled, main pole is fixing by insulating mat and ring flange and feed bin insulation, main pole and feed bin bulkhead are respectively a utmost point, constitute and become the medium continuous capacitance, its upper end is electrically connected with capacitive pick-up 5, metal main pole 1 is the bifilar structure that a compliant conductive cable wire forms from the bottom doubling, the per share compliant conductive cable wire outside of metal main pole 1 all is covered with flexible insulating layer 2, and flexible insulating layer 2 outsides are with the protective layer that one deck is made up of a plurality of high strength insulating sheaths 4.Be axially arranged with main pole via hole and two subsidiary electrode via holes of two connections in the present embodiment in the insulating sheath 4, the bifilar compliant conductive cable wire of metal main pole 1 passes from two main pole via holes of insulating sheath 4, and is subjected to the protection of insulating sheath 4 fully.Fixing down of bifilar compliant conductive cable wire, be enclosed within the equal stationkeeping of insulating sheath 4 relative metal main poles on the metal main pole 1, all insulating sheaths 4 are relative fixed all each other, can't rotate around metal main pole 1, fundamentally solved because sensor self rotates the damage that causes sensor, prolonged the serviceable life of sensor; Simultaneously, metal main pole 1 adopts a compliant conductive cable wire from the bifilar structure that the bottom doubling forms, and has increased the bearing capacity and the impact resistance of sensor, and sensor can be damaged under situation about being pullled by the material extruding; This designs simplification of metal main pole 1 sensor assembling technology, make the sensor safety and reliability.
The utility model is provided with at least one subsidiary electrode, and when capacitance type continuous material level sensor was provided with a subsidiary electrode, then the demarcation of measuring-signal was only finished by this subsidiary electrode.Two subsidiary electrodes 3 in the present embodiment are a compliant conductive cable wire, and subsidiary electrode 3 is electrically connected with capacitive pick-up 5.Subsidiary electrode 3 and feed bin bulkhead are two pole plates of continuous capacitance.Subsidiary electrode 3 outsides are covered with one deck flexible insulating layer 2, and subsidiary electrode 3 is not directly contacted with material, have effectively avoided the appearance of improper measurement phenomenons such as short circuit.The subsidiary electrode 3 that is covered with flexible insulating layer 2 passes from the subsidiary electrode via hole of insulating sheath 4 respectively, and is subjected to the protection of insulating sheath 4 fully.Subsidiary electrode 3 is the compliant conductive cable wire, and is not the outside of ring set at conduction main pole 1, and the capacitance signal between main pole 1 and bulkhead can be because of not impacted by 3 shieldings of subsidiary electrode.
When material rose to first subsidiary electrode 3, subsidiary electrode 3 formed the strong capacitive signal with bulkhead, transfers in the capacitive pick-up 5, has been judged as material, is demarcated by the measurement of 5 pairs of main poles of capacitive pick-up; The measurement situation of other subsidiary electrodes 3 also is like this.
From Fig. 1, Fig. 2 as can be seen, insulating sheath 4 is a cylindrical high-strength insulating material, be axially arranged with main pole via hole and two subsidiary electrode via holes of two connections in it, can satisfy the use under the varying environment, from Fig. 3, Fig. 4, Fig. 5 as can be seen, insulating sheath 4 also can adopt composite structure, and insulating sheath is combined on an insulating base 7 by a metal sleeve 6 ring sets, and the length of metal sleeve 6 is less than the length of insulating base 7.The length of metal sleeve 6 can be 1: 6 to 5: the 6 interior different numerical value of scope with the length ratio of insulating base 7.Insulating sheath 4 adopts the composite structure of this metal sleeve 6 ring sets on insulating base 7, has reduced the damage that impact and wearing and tearing caused of insulating sheath 4 because of material, has prolonged the serviceable life of sensor, and has satisfied the use under the rugged surroundings.Metal sleeve 6 not exclusively covers shroud insulating base 7, is for avoiding metal sleeve 6 to mask the whole metal main poles 1 and the measuring-signal of subsidiary electrode 3, having guaranteed that metal sleeve 6 in protection insulating base 7, can not impact actual measurement.
More than be not limit to the detailed description of the utility model embodiment, the utility model should not be restricted to above disclosed precise forms, such as, change the metal main pole in the utility model patent into multiply structure etc. by bifilar structure.Those skilled in the art will appreciate that in scope of the present utility model, can carry out various modifications that are equal to and replacement, such modification and replacement should be considered as being contained by this invention.In addition, also can be applicable to other field in the principle of the present utility model that this provided, and need not be confined to capacitance object position sensor.The element of above-mentioned each embodiment can be combined together, so that further embodiment is provided.
In addition, should not be restricted to disclosed specific embodiment in this explanation, unless above detailed description clearly defines this term with the explaination of the term that uses in the claims or with the utility model.Therefore, actual range of the present utility model all equivalents that should contain described embodiment and implement according to claim.
Claims (4)
1. capacitance type continuous material level sensor, be provided with the metal main pole, the main pole upper end is provided with the fixing ring flange of using, ring flange top is provided with capacitive pick-up, main pole is fixing by insulating mat and ring flange and feed bin insulation, main pole and feed bin bulkhead are respectively a utmost point, constitute and become the medium continuous capacitance, it is characterized in that very bifilar structure that the compliant conductive cable wire forms from the bottom doubling of master metal, the metal main pole outside is with the protective layer that one deck is made up of a plurality of insulating sheaths, be axially arranged with two main pole via holes in the insulating sheath, the bifilar compliant conductive cable wire of metal main pole passes from two main pole via holes of insulating sheath.
2. according to the capacitance type continuous material level sensor described in the claim 1, it is characterized in that also being provided with at least one subsidiary electrode, each subsidiary electrode follows main pole to form by a compliant conductive cable wire, be axially arranged with at least one subsidiary electrode via hole in the insulating sheath, the compliant conductive cable wire outside of subsidiary electrode is covered with flexible insulating layer, and passes from the subsidiary electrode via hole of insulating sheath.
3. according to the capacitance type continuous material level sensor described in the claim 1, it is characterized in that described insulating sheath is a composite structure, is combined on an insulating base by a metal sleeve ring set.
4. according to the capacitance type continuous material level sensor described in the claim 1, it is characterized in that two main pole via holes that described insulating sheath is provided with are communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202809751U CN201740567U (en) | 2010-07-30 | 2010-07-30 | Capacitance type continuous material position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202809751U CN201740567U (en) | 2010-07-30 | 2010-07-30 | Capacitance type continuous material position sensor |
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| Publication Number | Publication Date |
|---|---|
| CN201740567U true CN201740567U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202809751U Expired - Fee Related CN201740567U (en) | 2010-07-30 | 2010-07-30 | Capacitance type continuous material position sensor |
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| CN (1) | CN201740567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433617A (en) * | 2019-08-20 | 2019-11-12 | 延边科源新能源科技有限公司 | A kind of coaxial electrode purification |
-
2010
- 2010-07-30 CN CN2010202809751U patent/CN201740567U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433617A (en) * | 2019-08-20 | 2019-11-12 | 延边科源新能源科技有限公司 | A kind of coaxial electrode purification |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20150730 |
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| EXPY | Termination of patent right or utility model |