CN106989810B - Column type sensor unbalance loading testing arrangement - Google Patents
Column type sensor unbalance loading testing arrangement Download PDFInfo
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- CN106989810B CN106989810B CN201710265107.2A CN201710265107A CN106989810B CN 106989810 B CN106989810 B CN 106989810B CN 201710265107 A CN201710265107 A CN 201710265107A CN 106989810 B CN106989810 B CN 106989810B
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000013461 design Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000012795 verification Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a column type sensor unbalance loading testing arrangement which characterized in that: the sensor comprises an upper pressure head arranged at the upper end of the sensor, a base arranged at the lower end of the column type sensor, an upper top plate positioned above the upper pressure head and positioned in a matched manner with the upper pressure head, and a lower bottom plate positioned below the base and positioned in a matched manner with the base, wherein the upper pressure head and the base are matched in pairs to enable the sensor arranged between the upper pressure head and the base to be in different states of setting inclination angles, the upper top plate is freely connected with the lower bottom plate through a connecting rod, and a bearing head is arranged in the middle of the upper end of the upper top plate. By adjusting the position of the sensor base, the sensor is stressed in a biased load mode or an ideal vertical load mode according to a set inclination angle; the multiple positioning points are arranged, so that the unbalance loading test can be simultaneously carried out on the multiple sensors, and the unbalance loading performance of the tested sensors can be conveniently checked and verified. The invention has simple structure, convenient operation and high test efficiency, can guide the structural design and process optimization of the column sensor through the comparison and verification of test data, reduces the influence of unbalance loading stress on the accuracy of the column sensor and is beneficial to improving the field applicability of the column sensor.
Description
Technical Field
The invention relates to an offset load testing device for a column sensor, which is used for checking and verifying the offset load performance of the column sensor.
Background
At present, the column type sensor is widely applied to various electronic weighing devices such as various motor scales, rail scales, axle load scales, material tank scales and the like. The column type sensor has compact structure, stable and reliable performance and excellent dynamic response performance, and is very suitable for manufacturing high-precision sensors.
However, the column sensor has disadvantages, especially in field application, if the strength of the base and the scale body is insufficient, the installation error and the scale body deformation caused by thermal expansion and cold contraction can cause the column sensor not to work in an ideal vertical state, if the unbalance loading resistance of the sensor is not good, the weighing error can be caused, and how to improve the unbalance loading performance of the column sensor is always a difficult problem in the design of the column sensor.
According to the inspection, the existing loading force measuring machine for detecting the unbalance loading error of the bent plate type weighing sensor, such as Chinese patent CN200920032025.4, the loading force measuring machine for detecting the unbalance loading error of the bent plate type weighing sensor, comprises a lower frame, an arch-shaped support, an upper guide rail, an upper movable plate, a lower steel beam, an upper load sensor, a hydraulic jack, an extension workbench and an adjustable trolley, wherein the lower end of the lower frame is connected with a main workbench, the arch-shaped support is inserted and connected into the upper end of the lower frame, the middle upper part of the lower frame is connected with the upper guide rail through a screw, the upper guide rail is connected with the upper movable plate through a screw, the main workbench is connected with the lower steel beam, the lower steel beam is connected with the lower guide rail, the upper movable plate is connected with the force measuring sensor, the force measuring sensor is connected with the hydraulic jack, one end of the main workbench is connected with the extension workbench, and the adjustable trolley is arranged on the extension workbench. However, this device is not suitable for the offset load test of the column sensor.
For the reasons, a special column sensor unbalance loading test tool needs to be developed, the sensor unbalance loading resistance is continuously improved in the column sensor design development, process manufacturing and even production inspection stages, and finally the unbalance loading resistance of each column sensor meets the set process requirements, so that the poor applicability of the column sensor on the installation site and the incapability of meeting the metering requirement of precision are avoided.
Tests prove that the offset load performance of the column sensor can be influenced to a certain extent by the machining precision, the heat treatment process, the surface mounting process and other processes, so that for high-end column sensors, the offset load detection is used as a conventional detection means to improve the quality, the offset load performance detection operation of general column sensors is complex, the efficiency is low, and the improvement of the offset load performance detection efficiency of the column sensors needs to be considered.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a column sensor unbalance loading testing device with simple structure and convenient operation aiming at the technical current situation.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a column type sensor unbalance loading testing arrangement which characterized in that: the device comprises an upper pressure head arranged at the upper end of a sensor, a base arranged at the lower end of a column type sensor, an upper top plate positioned above the upper pressure head in a matched manner, and a lower bottom plate positioned below the base in a matched manner, wherein the upper pressure head and the base are matched in pairs to enable the sensor arranged between the upper pressure head and the base to be in different states of setting inclination angles, the upper top plate is freely connected with the lower bottom plate through a connecting rod, and a bearing head is arranged in the middle of the upper end of the upper top plate.
As an improvement, the sensor comprises an elastic body and bearing pressure heads which are integrally formed at the upper end and the lower end of the elastic body, and grooves which are matched and connected with the bearing pressure heads at the upper end and the lower end of the elastic body are respectively arranged on the lower end face of the upper pressure head and the upper end face of the base.
As the improvement, the protruding cylinder platform that is equipped with in upper end middle part of going up the pressure head, the lower terminal surface indent of going up the roof is equipped with corresponding circular slot, the lower extreme middle part of base is equipped with a projection, the setpoint of lower plate is a set of shrinkage pool that supplies the projection to select to plant, can make the sensor be in different settlement inclination after every shrinkage pool is connected with the projection, the sensor passes through the cylinder platform and circular slot, the cooperation setting of projection and shrinkage pool is between last roof and lower plate, make the sensor according to the inclination atress of settlement through the cooperation of the different shrinkage pools of the projection of base and lower plate.
In another improvement, the maximum set inclination angle of the sensor is 5 degrees.
Improve again, the connecting rod is a plurality of, and the edge of lower plate is equipped with the lower extreme that supplies the connecting rod and plants the screw hole of location, and the lower extreme of connecting rod is equipped with the external screw thread post that corresponds, and the connecting rod passes through threaded connection to be fixed on the lower plate, and the edge of going up the roof is equipped with the corresponding through hole that supplies the upper end of connecting rod to wear to put, and the upper segment of connecting rod is the external screw thread section, is equipped with a set nut on the external screw thread section, and the roof is passed to the upper end of connecting rod and is passed set nut and spacing to last roof.
Preferably, a plurality of groups of circular grooves for positioning the upper pressure head when the plurality of sensors are tested simultaneously are concavely arranged on the lower end surface of the upper top plate at intervals, and a plurality of groups of concave holes matched with the bases of the plurality of sensors are correspondingly distributed on the upper end surface of the lower bottom plate.
And finally, each group of concave holes is provided with a plurality of rows of matched concave holes.
Compared with the prior art, the invention has the advantages that: by adjusting the position of the sensor base, the column type sensor can be conveniently stressed in a biased load mode or an ideal vertical load mode according to a set inclination angle; a plurality of positioning points are arranged, so that the unbalance loading test can be simultaneously carried out on a plurality of column sensors, and the unbalance loading performance of the tested sensors can be conveniently checked and verified. The column type sensor testing device is simple in structure, convenient to operate and high in testing efficiency, structural design and process optimization of the column type sensor can be guided through comparison and verification of test data, the influence of unbalance loading stress on the accuracy of the column type sensor is reduced, the field applicability of the column type sensor is improved, and the whole testing device is reasonable, practical and convenient to operate.
Drawings
FIG. 1 is a schematic diagram of a pillar sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the test process according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
As shown in fig. 1 and 2, a column sensor unbalance loading testing device comprises an upper pressure head 2 arranged at the upper end of a sensor 1, a base 3 arranged at the lower end of the sensor 1, an upper top plate 4 positioned above the upper pressure head 1 and positioned in a matching way with the upper pressure head 1, and a lower bottom plate 5 positioned below the base 3 and positioned in a matching way with the base 3, wherein the lower bottom plate 5 is provided with a plurality of positioning points which can enable the sensor 1 to be positioned at different set inclination angles alpha, namely the upper pressure head 1 and the base 3 are matched in pairs to enable the sensor 1 arranged between the upper pressure head 1 and the base 3 to be positioned at different set inclination angles, the upper top plate 4 is freely connected with the lower bottom plate 5 through a connecting rod 7, and the middle part of the upper end of the upper top plate 4 is provided with a bearing head 6; the sensor 1 comprises an elastic body 11 and bearing pressure heads 12 and 13 which are integrally formed at the upper end and the lower end of the elastic body 11, grooves 100 which are matched and connected with the bearing pressure heads 12 and 13 at the upper end and the lower end of the elastic body 11 are respectively arranged on the lower end surface of the upper pressure head 2 and the upper end surface of the base 3, the grooves 100 are usually circular grooves, a cylindrical table 21 is convexly arranged at the middle part of the upper end of the upper pressure head 2, a corresponding circular groove 41 is concavely arranged on the lower end surface of the upper top plate 4, a convex column 31 is arranged at the middle part of the lower end of the base 3, the positioning point of the lower base plate 5 is a group of concave holes 51 for the convex column 31 to be selectively inserted, each group of concave holes is provided with a plurality of matched concave holes, in the embodiment, two rows of concave holes are displayed on the sub-image paper, after each concave hole 51 is connected with the convex column 31, the sensor 1 can be at different set inclination angles alpha, the sensor 1 is arranged between the upper top plate 4 and the lower base plate 5 through the matching of the cylindrical table 21, the circular grooves 41, the convex column 31 and the concave holes 51, the sensor 1 is vertically stressed or stressed according to a set inclination angle through the matching of the convex columns 31 of the base 3 and different concave holes 51 of the lower bottom plate 5, wherein the maximum set inclination angle alpha of the sensor 1 is 5 degrees, the connecting rods 7 are a plurality of, the edge of the lower bottom plate 5 is provided with a threaded hole for inserting and positioning the lower end of the connecting rod 7, the lower end of the connecting rod 7 is provided with a corresponding external threaded column, the connecting rod 7 is fixed on the lower bottom plate 5 through threaded connection, the edge of the upper top plate 4 is provided with a corresponding through hole for penetrating the upper end of the connecting rod 7, the upper section of the connecting rod 7 is an external threaded section, the external threaded section is provided with a positioning nut 8, the upper end of the connecting rod 7 penetrates through the upper top plate 4 and limits the upper top plate 4 through the positioning nut 8, in addition, a plurality of groups of circular grooves 41 for positioning the upper pressure head 2 when a plurality of sensors 1 are tested simultaneously are concavely arranged on the lower end surface of the upper top plate 4 at intervals, can even interval distribution usually, the up end of lower plate 5 distributes correspondingly and has a plurality of groups of shrinkage pool 51 with the base 3 complex of a plurality of sensors 1, can even interval distribution usually, can test simultaneously a plurality of sensors 1 like this, has improved efficiency of software testing greatly.
During testing, the lower base plate 5 is fixed on a stress device, the force F is loaded on the bearing head 6, the unbalance loading test can be simultaneously carried out on N column sensors (N is more than or equal to 1 and less than or equal to 10), the sensors 1 are positioned at different setting inclination angles alpha by adjusting the positioning of different concave holes 51 on the base 3 and the lower base plate 5, namely the base 3 is adjusted to be positioned at different positions, the unbalance loading stress of the sensors 1 can be set according to the setting angles, the operation is very convenient, the unbalance loading performance of the sensors to be tested can be conveniently checked and verified, the structural design and the process optimization of the column sensors are facilitated, and the field applicability of the column sensors is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides a column type sensor unbalance loading testing arrangement which characterized in that: the device comprises an upper pressure head arranged at the upper end of a sensor, a base arranged at the lower end of a column type sensor, an upper top plate positioned above the upper pressure head and positioned in a matched manner with the upper pressure head, and a lower bottom plate positioned below the base and positioned in a matched manner with the base, wherein the upper pressure head and the base are matched in pairs to enable the sensor arranged between the upper pressure head and the base to be in a state of different set inclination angles, the upper top plate is freely connected with the lower bottom plate through a connecting rod, and a bearing head is arranged in the middle of the upper end of the upper top plate;
the sensor comprises an elastic body and bearing pressure heads which are integrally formed at the upper end and the lower end of the elastic body, and grooves which are matched and connected with the bearing pressure heads at the upper end and the lower end of the elastic body are respectively arranged on the lower end surface of the upper pressure head and the upper end surface of the base;
go up the protruding cylinder platform that is equipped with in upper end middle part of pressure head, go up the lower terminal surface indent of roof and be equipped with the circular slot that corresponds, the lower extreme middle part of base is equipped with a projection, the setpoint of lower plate is a set of shrinkage pool that supplies the projection to select to plant, can make the sensor be in different settlement inclination after every shrinkage pool is connected with the projection, the sensor passes through cylinder platform and circular slot, the cooperation setting of projection and shrinkage pool is between last roof and lower plate, make the sensor according to the inclination atress of settlement through the cooperation of the projection of base and the different shrinkage pools of lower plate.
2. The column sensor offset load testing device of claim 1, wherein: the maximum set inclination angle of the sensor is 5 degrees.
3. The column sensor offset load testing device of claim 1, wherein: the connecting rod is a plurality of roots, and the edge of lower plate is equipped with the lower extreme that supplies the connecting rod and plants the screw hole of location, and the lower extreme of connecting rod is equipped with the external screw thread post that corresponds, and the connecting rod passes through threaded connection to be fixed on the lower plate, and the edge of going up the roof is equipped with the through hole that the upper end of corresponding confession connecting rod was worn to put, and the upper segment of connecting rod is the external screw thread section, is equipped with a set nut on the external screw thread section, and the roof is passed to the upper end of connecting rod and is passed set nut spacing to last roof.
4. The column sensor offset load testing device of claim 1, wherein: the lower end face of the upper top plate is provided with a plurality of groups of circular grooves for positioning the upper pressure head during simultaneous testing of the plurality of sensors at intervals in a concave mode, and a plurality of groups of concave holes matched with the bases of the plurality of sensors are distributed on the upper end face of the lower bottom plate correspondingly.
5. The column sensor offset load testing device of claim 4, wherein: each group of concave holes is provided with a plurality of rows of matched concave holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265107.2A CN106989810B (en) | 2017-04-21 | 2017-04-21 | Column type sensor unbalance loading testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265107.2A CN106989810B (en) | 2017-04-21 | 2017-04-21 | Column type sensor unbalance loading testing arrangement |
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| Publication Number | Publication Date |
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| CN106989810A CN106989810A (en) | 2017-07-28 |
| CN106989810B true CN106989810B (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710265107.2A Active CN106989810B (en) | 2017-04-21 | 2017-04-21 | Column type sensor unbalance loading testing arrangement |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0766075A2 (en) * | 1995-09-27 | 1997-04-02 | Carl Schenck Ag | Method for simultaneous testing of multiple force sensors, in particular load cells, using a load |
| CN201359523Y (en) * | 2009-03-03 | 2009-12-09 | 中航电测仪器股份有限公司 | Anti-tip column-type weighing sensor |
| CN202141516U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Column type weighing sensor module |
| CN106338329A (en) * | 2016-11-04 | 2017-01-18 | 宁波柯力传感科技股份有限公司 | Overturn-preventive weighing module |
| CN206876291U (en) * | 2017-04-21 | 2018-01-12 | 宁波柯力传感科技股份有限公司 | Column type sensor eccentricity test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6888074B2 (en) * | 2003-06-10 | 2005-05-03 | The Flintec Group, Ltd. | Compression column load cell |
-
2017
- 2017-04-21 CN CN201710265107.2A patent/CN106989810B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0766075A2 (en) * | 1995-09-27 | 1997-04-02 | Carl Schenck Ag | Method for simultaneous testing of multiple force sensors, in particular load cells, using a load |
| CN201359523Y (en) * | 2009-03-03 | 2009-12-09 | 中航电测仪器股份有限公司 | Anti-tip column-type weighing sensor |
| CN202141516U (en) * | 2011-06-23 | 2012-02-08 | 宁波金旭电子有限公司 | Column type weighing sensor module |
| CN106338329A (en) * | 2016-11-04 | 2017-01-18 | 宁波柯力传感科技股份有限公司 | Overturn-preventive weighing module |
| CN206876291U (en) * | 2017-04-21 | 2018-01-12 | 宁波柯力传感科技股份有限公司 | Column type sensor eccentricity test device |
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| CN106989810A (en) | 2017-07-28 |
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