CN201772917U - Integrated weighing sensor - Google Patents
Integrated weighing sensor Download PDFInfo
- Publication number
- CN201772917U CN201772917U CN2010201306670U CN201020130667U CN201772917U CN 201772917 U CN201772917 U CN 201772917U CN 2010201306670 U CN2010201306670 U CN 2010201306670U CN 201020130667 U CN201020130667 U CN 201020130667U CN 201772917 U CN201772917 U CN 201772917U
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- load cells
- type load
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Abstract
An integrated weighing sensor comprises a base, and a strain beam on the base. A strain hole is formed on the strain beam, a strain meter is arranged in the strain hole, a clearance slot is formed between the strain beam and the base, and a screw hole is formed on the bottom surface of the base. The integrated weighing sensor is characterized in that the strain beam and the base are integrally connected to form a whole sensor main body, and has the advantages that the structure is simple, the design is reasonable, the installation is convenient, the influence of temperature is less, the measuring accuracy and stability of the sensor are greatly improved, and the cost is reduced.
Description
Technical field
The utility model relates to the force measurement device, especially relates to a kind of integral type LOAD CELLS.
Background technology
Resistance strain weighing transducer, its principle of work is to utilize the strainometer of pasting on strain beam, the deflection of sense beam when the strain beam stress deformation, the resistance of strainometer will be exported corresponding electric signal along with the size of deflection simultaneously, and will be proportional between power and deflection and the electric signal.Existing double-shear beam type LOAD CELLS, mainly form as shown in Figure 1 by strain beam 1, base 3 and installing plate 4, its mechanical structure is two freely-supported beam types, and in order to reach the balance of beam, generally will strain beam 1 two ends are fixed on the base of bottom with bolt 2 respectively; Left-right symmetric is provided with strain blind hole 5 on the strain beam 1, and foil gauge is posted in the two sides of strain blind hole 5, and base is provided with screw and is connected with installing plate 4 by screw.And for example, China's utility model patent (patent No.: 200820030229.X) disclose a kind of double shear beam type LOAD CELLS, comprise base and the elastic body that is connected with base by bolt, on the described elastomeric bottom surface twice parallel groove is arranged, the upper surface of described base has twice and elastic body groove location corresponding groove, in the corresponding groove supporter assembly is arranged respectively up and down at two groups, the supporter assembly is to be rearranged by two or more identical shaped column in-lines, one end of column is the sphere or the conical surface, and perhaps two ends are sphere.Groove makes the accurate positioning of supporter assembly, and supporter is propped up elastic body from two ends, and makes formation point contact connection between elastic body and the base.
Because the strain beam of above-mentioned prior art is by on the base that is bolted to the bottom, the measuring accuracy of sensor and stability not only are subjected to the influence of the material, fixed form, assembly quality etc. of bolt, but also can be different with elastomeric material because of base, be subjected to the Temperature Influence difference, cause the measuring accuracy of sensor to reduce and poor stability; The prior art sensor has reduced the stability of product owing to be provided with installing plate thereby increased the height of sensor on the base of bottom in addition, has increased production cost, and installs also not easy.
The utility model content
The utility model mainly is to solve above-mentioned technical matters, thus provide a kind of simple in structure, cost is low, measuring accuracy is high and good stability, integral type LOAD CELLS easy for installation.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the integral type LOAD CELLS, comprise base, be located at the strain beam on the base, have strain bore on the strain beam, be provided with strainometer in the strain bore, be provided with clearance groove between strain beam and the base, on the bottom surface of base screw is arranged, it is characterized in that, described strain beam and base one are connected to form the monoblock sensor body.Owing to do not establish coupling bolt between strain beam and the base, be integral connection, not only simple in structure, process easier, and avoided because of the material of bolt, strain beam and base different, influence the measuring accuracy and the stability of sensor, remove installing plate, sensor body has been directly installed on the bearing plate of weighing apparatus, reduced the height of sensor, save production cost, made things convenient for installation.
As preferably, the bottom of described sensor body is provided with the plane boss, and described screw is located on the boss of plane.Can reduce the contact area of sensor body bottom and weighing apparatus, be beneficial to concentrating of stress, the plane boss can be one, also can be divided into several.
As preferably, the center of top of described sensor body is equipped with protective cover, is not damaged by weight when weighing with the protection strain beam.
As preferably, the two ends of described clearance groove are arcuation, can be earlier during the machining gap groove at two ends boring fluting again, be convenient to fluting.
As preferably, the middle part of described clearance groove is made of the round tube hole of several mutual lateral direction penetratings, and working groove is convenient.
As preferably, be stamped dust excluder on the opening of described clearance groove, enter clearance groove to prevent foreign material, influence the precision of sensor.
As preferably, be stamped gland bonnet on the described strain bore, prevent that dust and water from entering strain bore, the protection strainometer.
As preferably, described sensor body adopts the alloy steel or stainless steel to make.
Therefore, the utlity model has simple in structurely, reasonable in design, easy for installation, be subjected to advantages such as Temperature Influence is little, improved the measuring accuracy and the stability of sensor greatly, reduced cost.
Description of drawings
Accompanying drawing 1 is existing double-shear beam type LOAD CELLS perspective view;
Accompanying drawing 2 is one of front views of the utility model embodiment;
Accompanying drawing 3 is one of front views of the utility model embodiment;
Accompanying drawing 4 is upward views of accompanying drawing 3.
Among the figure: strain beam 1, bolt 2, base 3, installing plate 4, strain bore 5, sensor body 6, clearance groove 7, protective cover 8, dust excluder 9, gland bonnet 10, terminal 11, screw 12.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in Figure 2, sensor body 6 usefulness alloy steel material monoblocks are forged and to be formed, and the strain beam 1 and the base 3 of original beam type LOAD CELLS is integrated, and the center of top of sensor body 6 is equipped with protective cover 8.The top of sensor body 6 left surfaces is provided with terminal 11.The top symmetry of sensor body 6 offers strain bore 5, is provided with strainometer (not marking among the figure) in the strain bore 5, and strainometer is connected with terminal 11, and the orifice part of strain bore 5 is stamped gland bonnet 10.The bottom of strain bore 5 has clearance groove 7 along the length direction of sensor body 6, and clearance groove 7 two ends are arcuation, and the radius of its radian is slightly larger than the width of clearance groove 7, for the ease of fluting, can hole at two ends earlier and slot during machining gap groove 7; The middle part of clearance groove 7 also can be that the round tube hole by several mutual lateral direction penetratings constitutes, and adopts the mode of punching continuously to replace grooving, to improve the efficient of fluting.Shown in Fig. 3,4, can add a cover dust excluder 9 on the both-side opening of clearance groove 7; The bottom of sensor body 6 is provided with rectangle plane boss 13, has 4 interior hexagonals on the plane boss 13 screw 12 is installed, and screw 12 is installed is extended upwardly in the sensor body 6.Plane boss 13 also can be with certain thickness square plain cushion piece, is provided with four through holes by the screwhole position of the bottom of sensor body 6, uses as auxiliary assembling back.
Claims (8)
1. integral type LOAD CELLS, comprise base, be located at the strain beam on the base, have strain bore on the strain beam, be provided with strainometer in the strain bore, be provided with clearance groove between strain beam and the base, on the bottom surface of base screw is arranged, it is characterized in that, described strain beam and base one connect into the monoblock sensor body.
2. integral type LOAD CELLS according to claim 1 is characterized in that the bottom of described sensor body is provided with the plane boss, and described screw is located on the boss of plane.
3. integral type LOAD CELLS according to claim 1 and 2 is characterized in that the center of top of described sensor body is equipped with protective cover.
4. integral type LOAD CELLS according to claim 1 is characterized in that the two ends of described clearance groove are arcuation.
5. according to claim 1 or 4 described integral type LOAD CELLS, it is characterized in that the middle part of described clearance groove is made of the round tube hole of several mutual lateral direction penetratings.
6. integral type LOAD CELLS according to claim 1 is characterized in that, is stamped dust excluder on the opening of described clearance groove.
7. integral type LOAD CELLS according to claim 1 is characterized in that, is stamped gland bonnet on the described strain bore.
8. integral type LOAD CELLS according to claim 1 is characterized in that, described sensor body adopts alloy steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201306670U CN201772917U (en) | 2010-03-12 | 2010-03-12 | Integrated weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201306670U CN201772917U (en) | 2010-03-12 | 2010-03-12 | Integrated weighing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772917U true CN201772917U (en) | 2011-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201306670U Expired - Fee Related CN201772917U (en) | 2010-03-12 | 2010-03-12 | Integrated weighing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687834A (en) * | 2016-08-06 | 2018-02-13 | 常州瑞尔特测控***有限公司 | A kind of novel measuring depth of parallelism sensor |
-
2010
- 2010-03-12 CN CN2010201306670U patent/CN201772917U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687834A (en) * | 2016-08-06 | 2018-02-13 | 常州瑞尔特测控***有限公司 | A kind of novel measuring depth of parallelism sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130312 |