CN207180848U - Two-way overload protective sensor construction - Google Patents
Two-way overload protective sensor construction Download PDFInfo
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- CN207180848U CN207180848U CN201721192233.1U CN201721192233U CN207180848U CN 207180848 U CN207180848 U CN 207180848U CN 201721192233 U CN201721192233 U CN 201721192233U CN 207180848 U CN207180848 U CN 207180848U
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Abstract
Two-way overload protective sensor construction belongs to sensor technical field, relates generally to a kind of weighing sensor；The utility model generally only considers to protect the protection of positive loading to solve the design of cell overload protective capability of the prior art, it is impossible to the problem of meeting biaxial loadings demand；The utility model elastomer side is affixed side; the opposite side of affixed side is load side; elastomer opposite sides between affixed side and load side is provided with positive foil gauge and reverse strain piece; strain porose area is provided with the middle part of elastomer; elastomer is provided with overload protection pin close to positive foil gauge side, and overload protection pin penetrates load side by affixed side through strain porose area；The utility model realizes the two-way overload protective of weighing sensor, meets the needs of biaxial loadings.
Description
Technical field
A kind of weighing sensor belongs to sensor technical field, relates generally to two-way overload protective sensor construction.
Background technology
The weighing sensor being widely used at present, particularly single point weighing cell.Design to overload protection ability is led to
Often only consider the protection of the positive loading of protection, and the use of client needs to carry out biaxial loadings test under many circumstances, it is this
In the case of, in Opposite side loading, once due to equipment or artificial origin, the power that can be born in itself more than sensor is loaded with by mistake,
Due to no overload protection function, sensor is probably damaged, or even fracture, the personal safety of serious threat tester,
In the presence of very big potential safety hazard.
Utility model content
In order to solve the above problems, the utility model discloses two-way overload protective sensor construction, realizes biography of weighing
The two-way overload protective of sensor.
What the purpose of this utility model was realized in：
Two-way overload protective sensor construction, including elastomer, elastomer side are affixed side, and the opposite side of affixed side is
Load side, the elastomer opposite sides between affixed side and load side are provided with positive foil gauge and reverse strain piece, elastomer
Middle part is provided with strain porose area, and elastomer is provided with overload protection pin close to positive foil gauge side, the overload protection pin by
Affixed side penetrates load side through strain porose area.
Distance of the overload protection pin away from positive foil gauge and spacing of the overload protection pin away from reverse strain piece it
Than for 1:3.
The strain porose area includes being symmetrical arranged and the positive strain porose area of planform identical and reverse strain porose area, just
The circular strain perforation for including being interconnected to strain porose area, forward direction strain porose area and reverse strain porose area are established by interconnecting part
Connection, in Sensor Design using circle features of shape -- its radial direction any direction is all equal, by overload protection design from
Load(ing) point distance is at always high 1/3rd（Such as Fig. 1）, the purpose that designs here is easy for operating personnel and sensed in installation
Positive loading end and Opposite side loading end are easily distinguished during device.
The affixed side and load side of elastomer are respectively positioned at the line of centres both ends of two circular strain perforation.
The inwall of the interconnecting part of affixed side and load side extends to form affixed side boss and load side boss to relative direction,
Overload protection pin is penetrated by fixing end and inserted after affixed side boss and load side boss in load side elastomer.
Internal thread hole is provided with load side boss, the end of overload protection pin is screwed in internal thread hole.
Gap, clearance distance 0.02mm are left between the end of overload protection pin and load side elastomer inwall.
The utility model compared with prior art, has the advantages that the utility model installs simple and convenient, this reality
Bidirectional protective function can be realized with the elastomer structure of novel sensor, makes overload protection annex in forward direction loading and Opposite side loading
Shi Douneng plays overload protective function, and the cost of elastomer and the processing of overload protection annex is low, does not lose sensor each in itself
Item index performance, and it is reliable and stable to be installed on annex on sensor；The utility model overload protection ability 120%-200%, safety,
Reliably, accurately, high accuracy is possessed（C3MR）Performance indications, the requirement of the low cost manufacturing is realized again, that is, meets client
Use, do not increase too many cost to client again.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Embodiment
The utility model embodiment is described in further detail below in conjunction with the accompanying drawings.
The two-way overload protective sensor construction of the present embodiment, including elastomer 8, the side of elastomer 8 are affixed side 1, Gu
The opposite side for determining side 1 is load side 2, and the opposite sides of elastomer 8 between affixed side 1 and load side 2 is provided with the positive He of foil gauge 3
Reverse strain piece 4, the middle part of elastomer 8 are provided with strain porose area, and elastomer 8 is provided with overload protection close to the positive side of foil gauge 3
Pin 5, the overload protection pin 5 penetrate load side 2 by affixed side 1 through strain porose area, and strain porose area includes being symmetrical arranged
And the positive strain porose area of planform identical and reverse strain porose area, forward direction strain porose area include the circular strain being interconnected
Perforation 6, respectively positioned at the line of centres both ends of two circular strain perforation 6, forward direction should for the affixed side 1 and load side 2 of elastomer 8
Become porose area and reverse strain porose area and connection is established by interconnecting part 7.
Positive loading end and Opposite side loading end, the overload are easily distinguished in install sensor for the ease of operating personnel
It is 1 to protect the ratio between pin 5 distance and spacing of the overload protection pin 5 away from reverse strain piece 4 away from positive foil gauge 3:3, it is fixed
The inwall of the interconnecting part 7 of side 1 and load side 2 extends to form the boss of affixed side 1 and the boss of load side 2 to relative direction, and overload is protected
Guard pin nail 5 is penetrated by fixing end to be inserted in the elastomer 8 of load side 2 after affixed side boss 9 and load side boss 10, load side
Internal thread hole is provided with boss 10, the end of overload protection pin 5 is screwed in internal thread hole.
Using the theoretical loading 100% of PRO/E finite element analyses, the deformation quantity of elastomer 8, overload protection pin when 150%, 250%
Gap, clearance distance 0.02mm are left between the end of nail 5 and the inwall of 2 elastomer of load side 8, and realizes the machine of elastomer 8 and adds
Work is simple, and operating personnel's overload protection annex is easy installation and reliable.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should illustrate for clarity
Book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can manage
The other embodiment of solution.
Claims (7)
1. two-way overload protective sensor construction, including elastomer, elastomer side is affixed side, and the opposite side of affixed side is to add
Carry side, it is characterised in that：Elastomer opposite sides between affixed side and load side is provided with positive foil gauge and reverse strain piece,
Strain porose area is provided with the middle part of elastomer, elastomer is provided with overload protection pin close to positive foil gauge side, and the overload is protected
Guard pin nail penetrates load side by affixed side through strain porose area.
2. two-way overload protective sensor construction according to claim 1, it is characterised in that：The overload protection pin is away from just
The ratio between distance and spacing of the overload protection pin away from reverse strain piece to foil gauge are 1:3.
3. two-way overload protective sensor construction according to claim 1, it is characterised in that：The strain porose area includes symmetrical
Set and the positive strain porose area of planform identical and reverse strain porose area, forward direction strain porose area include interconnected circle
Strain perforation, forward direction strain porose area and reverse strain porose area are established by interconnecting part and connected.
4. two-way overload protective sensor construction according to claim 3, it is characterised in that：The affixed side of elastomer and loading
Side is respectively positioned at the line of centres both ends of two circular strain perforation.
5. two-way overload protective sensor construction according to claim 3, it is characterised in that：Affixed side connects with load side
The inwall in portion extends to form affixed side boss and load side boss to relative direction, overload protection pin by fixing end penetrate by
Inserted after affixed side boss and load side boss in load side elastomer.
6. two-way overload protective sensor construction according to claim 5, it is characterised in that：Interior spiral shell is provided with load side boss
Pit, the end of overload protection pin are screwed in internal thread hole.
7. two-way overload protective sensor construction according to claim 1, it is characterised in that：The end of overload protection pin with
Gap, clearance distance 0.02mm are left between load side elastomer inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721192233.1U CN207180848U (en) | 2017-09-19 | 2017-09-19 | Two-way overload protective sensor construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721192233.1U CN207180848U (en) | 2017-09-19 | 2017-09-19 | Two-way overload protective sensor construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180848U true CN207180848U (en) | 2018-04-03 |
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ID=61746576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721192233.1U Active CN207180848U (en) | 2017-09-19 | 2017-09-19 | Two-way overload protective sensor construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207180848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213006A (en) * | 2020-09-29 | 2021-01-12 | 中航电测仪器股份有限公司 | Overload protection method and structure of force sensor |
-
2017
- 2017-09-19 CN CN201721192233.1U patent/CN207180848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213006A (en) * | 2020-09-29 | 2021-01-12 | 中航电测仪器股份有限公司 | Overload protection method and structure of force sensor |
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Address after: 215000, No. 106, Heng Shan Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou Patentee after: Huodinggebikai (Suzhou) Electronic Measurement Technology Co., Ltd Address before: 215000, No. 106, Heng Shan Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou Patentee before: HOTTINGER BALDWIN (SUZHOU) ELECTRONIC MEASUREMENT TECHNOLOGY Co.,Ltd. |