CN203216576U - Column type weighing sensor - Google Patents
Column type weighing sensor Download PDFInfo
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- CN203216576U CN203216576U CN 201320059713 CN201320059713U CN203216576U CN 203216576 U CN203216576 U CN 203216576U CN 201320059713 CN201320059713 CN 201320059713 CN 201320059713 U CN201320059713 U CN 201320059713U CN 203216576 U CN203216576 U CN 203216576U
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- elastic body
- elastomeric
- load cells
- inner chamber
- polygon
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Abstract
A column type weighing sensor comprises an elastomer, a strain gauge and a guide line; the weighing sensor is characterized in that an inner cavity in a cylinder shape is arranged in the elastomer in a polygon shape; or the elastomer is in a polygon shape both inside and outside; or the inner cavity is in a polygon shape, the elastomer is in a cylinder shape outside; a thin wall is formed on an outer peripheral face of the inner cavity and the elastomer; the strain gauge is arranged on a strain area of the thin wall; and a sealing film is arranged on a bottom opening of the elastomer. The column type weighing sensor is simple in structural design and low in cost; a complex process of matched housing is not needed because of the design of the sealing film; a conventional sensor housing is easily deformed and fails, the column type weighing sensor solves the problem, greatly improves sealing property of the sensor; and a concave ball surface is designed on the top to remove influences to a weighing process by transverse impact load.
Description
Technical field
The utility model relates to sensor field, especially a kind of tubular pillar LOAD CELLS for the steel ball power transmission.
Background technology
The tradition column type sensor is widely used in various electronic-weighing equipment such as various track scales, bunker scale, platform scale.But because all be two ball head structures, when being used for truck scale, load is introduced mode, positioning inhibiting device etc. to be required comparatively harsh, anti-eccentric load and side load ability, in order to reduce the also inefficacy easily of protective sleeve welding that performance impact adopts, thereby influence scales accuracy of measurement and water proof and dust proof effect, and whole very high to the spacing requirement of weighing platform self, and practicality is not strong.The sensor of other tubular pole structures is because periphery and interior Zhou Douwei circle, the similar concentric circles anchor ring of xsect is difficult for forming the slim inwall of variable cross section, thereby is difficult to find the thin-walled strain regions of maximum stress strain, the transducer sensitivity that constitutes is not high, and overload capacity is not strong.
Existing column type sensor generally comprise pillar elastic body, be positioned at the elastic body outer wall housing, be located at the strainometer on the elastic body.Be 200420020485.2 as the patent No.; name is called the Chinese utility model patent of " a kind of pillar LOAD CELLS "; it includes column type elastomer; fixedly there is strain ga(u)ge on surface at column type elastomer; strain ga(u)ge is formed certain Wheatstone Bridge; export the voltage signal that changes with weight; the column type elastomer fixed outside has the big envelope of protective resistance strainometer; it is characterized in that the column type elastomer ratio of height to diameter is 2.5～4; resistance-strain is in respect of four, and they stick on surface, column type elastomer middle part equably.The sensor of this structure is compared with traditional column type sensor at aspects such as linearity, anti-side, antitorque, azimuthal errors and is reached than higher precision, be adapted at promoting the use of on the LOAD CELLS, but desirable not enough on weighing precision and water proof and dust proof effect, be still waiting further improvement in anti-side load and eccentric load ability.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of simple in structure, cost is low and dustproof and waterproof, anti-side load and eccentric load ability are strong pillar LOAD CELLS is provided at the above-mentioned state of the art.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of pillar LOAD CELLS, comprise elastic body, strainometer, lead, it is characterized in that: described elastomeric inside is provided with an inner chamber, and inner chamber is cylindrical, and elastomeric outside is polygon; Or elastomeric inside and outside portion all is polygon; Or inner chamber is polygon, and elastomeric outside is cylindrical; Described inner chamber and elastomeric outer peripheral face are formed with the thin-walled place, and described strainometer is arranged on the strain regions at this thin-walled place, and elastomeric lower ending opening place is provided with a seal membrane.
Preferably, described polygon is quadrilateral, hexagon or octagon.
As improvement, on the described strainometer wall that a group is arranged in thin-walled place strain regions equably in twos.
Improve again, the below of described elastic body bottom surface is provided with a plate, web joint is quadrilateral or circle, elastic body has screw on the bottom surface, web joint is provided with the fixed orifice corresponding with screw, elastic body bottom surface and web joint are connected to a fixed by bolt, also elastic body and the integrated machine-shaping of web joint can be fixed.
Improve, form on the internal perisporium face of described elastic body bottom surface opening part and can embed groove for seal membrane, the shape of groove and opening part adapts.
As improvement, described elastomeric upper surface forms a concave surface, and described concave surface is concave spherical surface.
As improvement, described elastomeric right lower quadrant is provided with a circular side through hole that connects with inner chamber, and the mouth end of side through hole is provided with the line outlet that connects lead, and the right side of line outlet is provided with the jointing for waterproof, and the two is by screw thread or be welded to connect.
As improvement, the top of described elastic body upper surface is provided with two carrying annexes, and the first carrying annex is the steel ball suitable with described concave spherical surface, and the bottom of the second carrying annex forms the spherical groove that matches with the first carrying annex.
At last, described thin-walled place is polygon for cylindrical, the elastomeric outside of inner chamber or inner chamber is under polygon, the cylindrical situation in elastomeric outside, and strainometer is installed as strain regions in the place that is chosen in the thin-walled of elastic body.
Compared with prior art, advantage of the present utility model is: this product is simplicity of design structurally, and the cost that spends is lower, the design of its seal membrane has changed the complicated processes that in the past needs supporting housing, has overcome the housing of traditional type sensor because participating in the defective that deformation was lost efficacy easily, improved the sealing property of sensor greatly, because the influence of lateral impact loading to weighing eliminated in the design of the concave spherical surface at top, anti-side load and eccentric load ability are strong.
Description of drawings
Fig. 1 is structural representation sectional view of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is the upward view (this example is quadrilateral) of web joint;
Fig. 4 is the first carrying annex synoptic diagram;
Fig. 5 is the second carrying annex cut-open view;
Fig. 6 a, 6b, 6c are the elastic body cross-sectional views (be example with the quadrilateral) in the utility model.
Embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in Figures 1 to 3, a kind of pillar LOAD CELLS for the steel ball power transmission, comprise elastic body 1, strainometer 2, lead 7, elastic body 1 is cylindricality, its periphery is polygon or circle, polygon is preferably quadrilateral or octagon, the inside center place of elastic body 1 forms an inner chamber 3 that is connected with elastic body 1 bottom, inner chamber 3 is cylindrical, inner chamber 3 is formed with the thin-walled place with elastic body 1 periphery, because the strain regions 4 at thin-walled place is tetragonal structure for inner chamber 3 cylindrical shape peripheries, anti-side load and anti-eccentric load ability have effectively been improved, totally eight and in twos on the inwall of the corresponding strain regions 4 that is arranged on the thin-walled place equably of strainometers 2, usually, cylindrical for inner chamber, elastomeric outside is polygon or inner chamber is polygon, under the cylindrical situation in elastomeric outside, strainometer is installed as strain regions in the place that is chosen in the thin-walled of elastic body, internal perisporium at the bottom opening place of elastic body 1 forms the groove that can embed for seal membrane 5, the shape of groove and opening part adapts, seal membrane 5 is arranged in the groove by welding, form the integral body of complete closed with elastic body 1, thereby efficiently solve sensor uses easy seal failure in rugged surroundings problem; The right lower quadrant of elastic body 1 is provided with the circular side through hole 6 that connects with inner chamber 3, the mouth end of side through hole 6 is provided with the line outlet 8 that connects lead 7, the right side of line outlet 8 is provided with the jointing 9 that cooperates with line outlet 8 phase threaded engagement or welding, and jointing 9 plays waterproof effect; The below of the bottom surface of elastic body 1 also is provided with a plate 10, the shape of web joint 10 and elastic body 1 bottom shape adapt and are quadrilateral or circle, four corners of web joint 10 are respectively arranged with for the fixed orifice 11 that fixes with elastic body 1 bottom surface, accordingly, be provided with the screw 12 that matches with fixed orifice 11 in elastic body 1 bottom surface, the underrun bolt of web joint 10 and elastic body 1 passes fixed orifice 11 and screw 12 fixes together, or web joint 10 and elastic body 1 direct integrated formation one-piece construction; The top of elastic body 1 offers the concave spherical surface 13 that shape and spheroid match.
Fig. 4 is that the first carrying annex, 14, the first carrying annexes 14 are steel ball, and the shape of steel ball and concave spherical surface 13 is suitable, and Fig. 5 is the second carrying annex 15, forms the spherical groove 16 that matches with the first carrying annex 14 in the bottom of the second carrying annex 15; Roll in concave spherical surface 13 by steel ball, can eliminate lateral impact loading to the influence of weighing, and can under the gravity effect, automatically reset, improved the ability of the anti-side load of column type sensor greatly, reduced the spacing requirement of weighing platform side direction.
Claims (9)
1. a pillar LOAD CELLS comprises elastic body, strainometer, lead, it is characterized in that: described elastomeric inside is provided with an inner chamber, and inner chamber is cylindrical, and elastomeric outside is polygon; Or elastomeric inside and outside portion all is polygon; Or inner chamber is polygon, and elastomeric outside is cylindrical; Described inner chamber and elastomeric outer peripheral face are formed with the thin-walled place, and described strainometer is arranged on the strain regions at this thin-walled place, and elastomeric lower ending opening place is provided with a seal membrane.
2. pillar LOAD CELLS according to claim 1, it is characterized in that: described polygon is quadrilateral, hexagon or octagon.
3. pillar LOAD CELLS according to claim 1 is characterized in that: on the described strainometer wall that a group is arranged in thin-walled place strain regions equably in twos.
4. pillar LOAD CELLS according to claim 1, it is characterized in that: the below of described elastic body bottom surface is provided with a plate, web joint is quadrilateral or circle, elastic body has screw on the bottom surface, web joint is provided with the fixed orifice corresponding with screw, elastic body bottom surface and web joint are connected to a fixed by bolt, also elastic body and the integrated machine-shaping of web joint can be fixed.
5. pillar LOAD CELLS according to claim 1 is characterized in that: form on the internal perisporium face of described elastic body bottom surface opening part and can embed groove for seal membrane, the shape of groove and opening part adapts.
6. pillar LOAD CELLS according to claim 1, it is characterized in that: described elastomeric upper surface forms a concave surface, and described concave surface is concave spherical surface.
7. pillar LOAD CELLS according to claim 1, it is characterized in that: described elastomeric right lower quadrant is provided with a circular side through hole that connects with inner chamber, the mouth end of side through hole is provided with the line outlet that connects lead, the right side of line outlet is provided with the jointing for waterproof, and the two is by screw thread or be welded to connect.
8. pillar LOAD CELLS according to claim 6, it is characterized in that: the top of described elastic body upper surface is provided with two carrying annexes, the first carrying annex is the steel ball suitable with described concave spherical surface, and the bottom of the second carrying annex forms the spherical groove that matches with the first carrying annex.
9. pillar LOAD CELLS according to claim 1, it is characterized in that: described thin-walled place is polygon for cylindrical, the elastomeric outside of inner chamber or inner chamber is under polygon, the cylindrical situation in elastomeric outside, and strainometer is installed as strain regions in the place that is chosen in the thin-walled of elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059713 CN203216576U (en) | 2013-01-30 | 2013-01-30 | Column type weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059713 CN203216576U (en) | 2013-01-30 | 2013-01-30 | Column type weighing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216576U true CN203216576U (en) | 2013-09-25 |
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ID=49206103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059713 Expired - Fee Related CN203216576U (en) | 2013-01-30 | 2013-01-30 | Column type weighing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655143A (en) * | 2019-01-17 | 2019-04-19 | 广东韶钢工程技术有限公司 | A kind of column weighting sensor connector and preparation method thereof |
-
2013
- 2013-01-30 CN CN 201320059713 patent/CN203216576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655143A (en) * | 2019-01-17 | 2019-04-19 | 广东韶钢工程技术有限公司 | A kind of column weighting sensor connector and preparation method thereof |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20190130 |