CN2121684U - Resistance strain seal load sensor - Google Patents
Resistance strain seal load sensor Download PDFInfo
- Publication number
- CN2121684U CN2121684U CN 92223148 CN92223148U CN2121684U CN 2121684 U CN2121684 U CN 2121684U CN 92223148 CN92223148 CN 92223148 CN 92223148 U CN92223148 U CN 92223148U CN 2121684 U CN2121684 U CN 2121684U
- Authority
- CN
- China
- Prior art keywords
- sensor
- adopt
- elastic body
- pressure bearing
- base plate
- 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.)
- Granted
Links
- 239000003292 glue Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 abstract description 6
- 238000005303 weighing Methods 0.000 abstract description 5
- 239000000806 elastomer Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Measuring Fluid Pressure (AREA)
- Measurement Of Force In General (AREA)
Abstract
The utility model relates to a resistance strain seal load sensor, belonging to a weighing apparatus. Compared with the existing sensor, the utility model is characterized in that socket head screws connecting a support plate and an elastomer, and an overload protection screw adopts tight lockout. The entire casing is divided into a casing and a base board which are easy to manufacture. The elastomer adopts the full symmetry and reverse loading. A damp proofing spacing piece is cancelled. A bare and fully sealed insulation structure is adopted. A dust block device and a dust storing device are additionally provided. A cover, the casing and the base board adopts glue to connect (stick). The utility model has the advantages of high precision, long service life, labour saving, time saving, low cost, and shapely configuration, and can be widely used for weighing weight and force.
Description
The utility model resistance-strain sealing load sensor belongs to dynamometry weighing instrument.
Along with science and technology development; the application of sensor more and more widely; the structure of the same type of sensor of Shi Yonging as shown in Figure 1 in the market; it is mainly by lid (1), moistureproof spacer (3), housing (4), pressure bearing head (5), overload protection screw (6), supporting plate (7), socket head cap screw (10), elastic body (11) and electric components tissues such as (8,9); lid (1) adopts thread connection with housing (4); there is moistureproof spacer (3) centre; it compresses mode and does not compress for having location trim ring (2) with one, and housing is an integral body.
There is following shortcoming in the sensor of this structure:
(1) connecting rack plate (7) from top to bottom is the forward assembling with the socket head cap screw (10) of elastic body (11), and overload protection screw (6) also is the forward assembling.Adopt this structure sensor pressure bearing head (5) highly bigger, eccentric unbalance loading is bigger to the precision influence, and especially in the dynamic motion, this error is more obvious.
(2) moistureproof spacer (3) is that a thin rubber is formed, and guarantees the insulation of sensor as moistureproof spacer.But because temperature Change causes that moistureproof sheet drags the error that the motion of pressure bearing head no-load brings.
(3) because socket head cap screw (10) adopts the forward assembling, make elastomeric structure as shown in Figure 3, one end is a threaded hole, one end is a unthreaded hole, and for adapting to elastic body distortion needs, elastic body has the end face of screw and housing (4) inner face to have clearance C, so elastic body is a unsymmetric structure.
(4) for making the pressure bearing head motion flexibly, pressure bearing head and lid have the annular ring of gap a, and dustproof problem is difficult to solve, and especially in the occasion of service condition abominable (as the cement mill of many dust), influence the precision and the serviceable life of sensor greatly.
Because the sensor of existing use exists many problems, must improve.
The purpose of this utility model is: for market provides a kind of high precision, use reliably, the life-span is long, the novel sensor that cost is low.
The purpose of this utility model is achieved in that
(1) overall height of reduction sensor; can be assembled into anti-fastening assembling by changing connecting rack plate and elastomeric socket head cap screw forward; promptly connect from the bottom to top, and reserve the ailhead assembly space, and the overload protection screw also adopts anti-fastening assembling to realize in the base plate relevant position.
(2) adopt the breakdown shell structure, the one-piece construction of existing use is decomposed into by shell and base plate forms.
(3) adopt complete symmetry to fall along shooting the gonosome structure.
(4) cancel moistureproof spacer, adopt exposed hermetically sealed (being elastomeric seal, wiring board sealing and electrical equipment sealing) structure, reduce the pressure bearing head height, realize the pressure bearing head undamped motion.
(5) increase dust-break, storage dirt structure.
(6) lid, shell, base plate adopt glue (gluing) to connect in succession.
The structure of the resistance-strain sealing load sensor after the improvement as shown in Figure 2; it is made up of lid (1), pressure bearing head (5), overload protection screw (6), supporting plate (7), socket head cap screw (10), elastic body (11), base plate (15), shell (16) and electrical equipment (8,9) etc., it is characterized in that:
(1) connecting rack plate (7) adopts anti-fastening assembling with the socket head cap screw (10) of elastic body (11), and overload protection screw (6) also adopts anti-fastening assembling.The result one of architecture advances reduces the pressurized height of sensor like this, and improves precision; The 2nd, save material.
(2) adopt breakdown right angle shell structure, existing sensor housing is whole, and the shortcoming of this structure is high material consumption (adopting material all in one piece to hollow out), and interior resonator end surface manufacturing accuracy is difficult to improve.Housing is resolved into base plate (15) and shell (16) two parts for this reason, shell is a circular cylinder, and base arrangement is a boss platform on the below as shown in Figure 5, leave socket head cap screw head assembly space and elastic body space in the relevant position of boss, whole raised head face exposes.The maximum characteristics of this structure are material-savings, improve machining precision and are fitted to each other precision, thereby improve sensor accuracy.
(3) adopt complete symmetry to fall along shooting the gonosome structure.The existing sensor elastomer that uses is because the assembling of socket head cap screw (10) forward must make an end be unthreaded hole, the other end is a screw, in addition because the existence of clearance C, bring on the elastic body strainometer lead-in wire (8) can only be welded in single direction, the operative employee must hypermnesia, in case get wrong, cause the phenomenon of scrapping or reducing precision to happen occasionally, moreover, bring difficulty to processing because two-end thickness differs, precision is difficult for reaching.Improved elastic body as shown in Figure 4, it is the i shaped cross section structure, two ends are unthreaded hole, thickness equates that centre is thin slice, the weld strain meter goes between up and down, electric components such as wiring board.Like this elastic body of structure, not only self machining precision can improve, and the more important thing is that welding lead need not consider its directivity, cocoa along dress, but upside-down mounting, structure is symmetry fully, thereby improves work efficiency, reduces and scraps probability.
(4) cancel moistureproof spacer (3), adopt exposed hermetically sealed insulation system, the space that former protection against the tide is shared reduces pressure bearing head (5) highly in order to dust-break, and realizes the pressure bearing head undamped motion.The moistureproof sheet that existing sensor adopts not only increases the hysteresis error that rubber and steel fixed frequency differ and cause, and because of variation of ambient temperature causes the sensor chamber pressure, brings pressure bearing head no-load kinematic error.
(5) increase dust-break, storage dirt device, comprise dust-break sheet (12), storage dirt sheet (13), support pads (14), be contained in pressure bearing head, between lid and the supporting plate, play dust-break, the effect of storage dirt, to improve sensor accuracy and serviceable life.
(6) lid, shell, base plate adopt glue (gluing) to connect in succession.Because the moistureproof spacer of cancellation also just need not to adopt screw thread to compress, and connects with glue (gluing), when reducing worker, reduces cost.
The utility model makes it to compare with existing sensor owing to taked series of improving measures, has remarkable advantages:
(1) improves accuracy class, expand the scope of allowed activities, under existing service precision condition, prolong the serviceable life of this sensor;
(2) architecture advances, labor and material saving improves work efficiency, reduces cost;
(3) be easy to the breakdown right angle shell mechanism processed, good looking appearance is generous.
Embodiment: the physical dimension of sensor, base plate 80 * 80, height overall 40mm adopts flexible plastic, polyfoam is done dust-break storage dirt sheet, can produce 0.05 grade, the dynamometry weighing sensor of weighing scope 0～100 kg, with the existing material-saving 50% of comparing, save time 30%, and elegant in appearance.
Provide accompanying drawing and other part title below:
The existing sensor construction synoptic diagram of Fig. 1
Fig. 2 novel sensor structural representation
The existing elastic body sectional view of Fig. 3
Fig. 4 novel elastomer sectional view
Fig. 5 base plate shape figure
(1) lid (2) trim ring
(3) moistureproof spacer (4) housing
(5) pressure bearing head (6) overload protection screw
(7) supporting plate (8) strain ga(u)ge
(9) wiring board (10) socket head cap screw
(11) elastic body (12) dust-break sheet
(13) storage dirt sheet (14) support pads
(15) base plate (16) shell
Claims (5)
1, a kind of resistance-strain sealing load sensor; form by lid (1), housing (4), pressure bearing head (5), overload protection screw (6), supporting plate (7), strain ga(u)ge (8), wiring board (9), socket head cap screw (10), elastic body (11) etc., it is characterized in that:
(1) connecting rack plate (7) is anti-fastening with socket head cap screw (10), overload protection screw (6) employing of elastic body (11), i.e. assembling from the bottom to top;
(2) adopt breakdown right angle shell structure, housing is divided into base plate (15) and shell (16) structure;
(3) adopt complete symmetry to fall along shooting gonosome (11) structure;
(4) cancel moistureproof spacer (3), adopt exposed hermetically sealed insulation system, reduce pressure bearing head (5) highly, realize the pressure bearing head undamped motion;
(5) increase dust-break, storage dirt device, comprise dust-break sheet (12), storage dirt sheet (13) and support pads (14).
2, according to the described sensor of claim 1, it is characterized in that: it is i shaped cross section that described complete symmetry is fallen along shooting gonosome (11), and two ends have unthreaded hole, and thickness equates.
3, according to the described sensor of claim 1, it is characterized in that: described base plate (15) is boss platform on the below, leave socket head cap screw (10) ailhead assembly space in the relevant position of boss, elastic body space and connector assembly space, whole raised head face exposes.
4, according to the described sensor of claim 1, it is characterized in that: described exposed sealed insulation comprises strainometer, wiring board and electric components independent sealed.
5, according to claim 1,2, one of 3 and 4 described sensors, it is characterized in that: lid (1), base plate (15), the shell (16) of forming the sensor profile adopt glue (gluing) to connect in succession.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223148 CN2121684U (en) | 1992-05-16 | 1992-05-16 | Resistance strain seal load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223148 CN2121684U (en) | 1992-05-16 | 1992-05-16 | Resistance strain seal load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2121684U true CN2121684U (en) | 1992-11-11 |
Family
ID=4965924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223148 Granted CN2121684U (en) | 1992-05-16 | 1992-05-16 | Resistance strain seal load sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2121684U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871793A (en) * | 2010-06-10 | 2010-10-27 | 无锡市耐特机电一体化技术有限公司 | Sensor mounting mechanism |
| CN101558287B (en) * | 2006-12-02 | 2011-06-15 | 得克斯玛格有限责任公司贸易公司 | Roller with force sensor |
| CN108458776A (en) * | 2018-03-28 | 2018-08-28 | 福建省永正工程质量检测有限公司 | A kind of high-supported formwork load sensor and application method |
-
1992
- 1992-05-16 CN CN 92223148 patent/CN2121684U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101558287B (en) * | 2006-12-02 | 2011-06-15 | 得克斯玛格有限责任公司贸易公司 | Roller with force sensor |
| CN101871793A (en) * | 2010-06-10 | 2010-10-27 | 无锡市耐特机电一体化技术有限公司 | Sensor mounting mechanism |
| CN108458776A (en) * | 2018-03-28 | 2018-08-28 | 福建省永正工程质量检测有限公司 | A kind of high-supported formwork load sensor and application method |
| CN108458776B (en) * | 2018-03-28 | 2020-07-10 | 福建省永正工程质量检测有限公司 | High formwork supporting load sensor and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |