CN218411505U - Strain type two-dimensional force sensor - Google Patents
Strain type two-dimensional force sensor Download PDFInfo
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- CN218411505U CN218411505U CN202221537246.9U CN202221537246U CN218411505U CN 218411505 U CN218411505 U CN 218411505U CN 202221537246 U CN202221537246 U CN 202221537246U CN 218411505 U CN218411505 U CN 218411505U
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Abstract
The utility model discloses a strain type two-dimensional force transducer for with shearing the hole pattern to test the interior multidimension effort of space, including positioner, set up and wait to detect in the space on the object, positioner is used for adjusting the position of two-dimensional force transducer in the space. The detection device is arranged on the positioning device and movably connected with the positioning device, and the detection device tests the multidimensional acting force in the space where the detection device is positioned by the shearing hole type. The detection device is fixed on an object to be detected in space through the positioning device, when acting force is applied to the detection device, an included angle is generated between two stress surfaces of the detection device due to strain, the acting force is detected in a shear mode, then the multi-dimensional acting force is tested in the space, the measurement and vector calculation of the space multi-dimensional acting force in any two-dimensional force group mode in the space are realized, and the detection device has the characteristics of flexible installation mode and large measuring range.
Description
Technical Field
The utility model relates to the technical field of sensors, especially, relate to a strain type two-dimensional force sensor.
Background
The strain gauge type force sensor is a strain gauge type force sensor in which the measured physical quantity is a load or a force, and is collectively called a strain gauge type force sensor. The strain type force sensor is one of various types of force sensors, is mainly used as a force measuring element of various electronic scales and material testing machines, reasoning and testing of engines, monitoring of dam body bearing conditions and the like, has a wide application range, and has high sensitivity and stability.
The L-shaped strain sensor in the prior art is a square sensor formed by mutually butting and combining two identical L-shaped strain sensors, a resistance strain gauge is adhered to the surface of the sensor, acting force is applied to two side walls of the sensor, the resistance strain gauge on the sensor is deformed and outputs a variable to realize the force test, the L-shaped strain sensor belongs to a single-point sensor and is used for testing force by measuring in a plane, a strain area is arranged on the side wall of the L-shaped strain sensor, and the general measuring range is about 3N-150N.
The L-shaped strain sensor can only test the acting force in the plane where the L-shaped strain sensor is located, and the test range is small.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a strain gauge two-dimensional force sensor tests and vector calculation through the mode of shearing cellular type to multidimension effort in the space.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a strain-gauge two-dimensional force sensor for testing multi-dimensional forces in space in a shear-hole fashion, comprising:
and the positioning device is arranged on the object to be detected in the space and is used for adjusting the position of the two-dimensional force sensor in the space.
The detection device is arranged on the positioning device and movably connected with the positioning device, and the detection device tests the multidimensional acting force in the space where the detection device is positioned by the shearing hole type.
Compared with the prior art, the utility model has the advantages of it is following: the detection device is fixed on an object to be detected in space through the positioning device, when acting force is applied to the detection device, an included angle is generated between two stress surfaces of the detection device due to strain, the acting force is detected in a shear mode, then the multi-dimensional acting force is tested in the space, the measurement and vector calculation of the space multi-dimensional acting force in any two-dimensional force group mode in the space are realized, and the detection device has the characteristics of flexible installation mode and large measuring range.
More preferably, the detection device includes:
the first detection arm is arranged on the positioning device, the first side wall is movably connected with the positioning device, and the first detection arm is used for testing the loading acting force of the plane where the first detection arm is located by using the shearing hole type.
By adopting the technical scheme, the first detection arm generates strain and displacement due to the acting force, and then position change occurs in the space.
Further preferably, the second detection arm is arranged on the positioning device, the first side wall is movably connected with the positioning device, and the second detection arm is used for testing the loading acting force of the plane where the second detection arm is located by using a shearing hole type.
By adopting the technical scheme, the second detection arm generates strain and displacement due to the acting force, and further generates position change in space.
Preferably, the first detection arm is provided with a first detection hole, and the first detection hole is used for attaching the first strain gauge.
By adopting the technical scheme, when the first detection arm receives the loaded acting force, the micro displacement is generated, the first detection hole generates micro strain, and the first strain gauge outputs the first variable due to the micro strain.
The second detection arm is further optimized to be provided with a second detection hole, and the second detection hole is used for attaching a second strain gauge.
By adopting the technical scheme, when the second detection arm receives the loaded acting force, the micro displacement is generated, the second detection hole generates micro strain, and the second strain gauge outputs a second variable due to the micro strain.
Further optimization is that an included angle A is formed between the lower end of the second detection arm and the left end of the first detection arm.
By adopting the technical scheme, the first detection arm and the second detection arm generate changeable included angles due to micro displacement generated by respectively receiving loaded acting force, and the detection of any acting force in space is realized.
It is further preferred that the included angle a varies from 0 to 90.
By adopting the technical scheme, the included angle between the first detection arm and the second detection arm can be changed within the range of 0-90 degrees, and the detection of any group of two-dimensional forces in the plane where the object is located can be detected at will in space.
Preferably, the first detection arm is rotatably connected to the second detection arm.
By adopting the technical scheme, the change range of the plane included angle formed by the first detection arm and the second detection arm is reflected, and the detection of the two-dimensional acting force in the plane is realized.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Reference numerals are as follows: 1-a first detection arm; 11-a first detection well; 2-a second detection arm; 21-a second detection well; 3-positioning means.
Detailed Description
The present invention will be described in further detail with reference to fig. 1.
A strain-gauge two-dimensional force sensor for testing multi-dimensional forces in space in a shear-hole fashion, comprising:
and the positioning device 3 is arranged on the object to be detected in the space, and the positioning device 3 is used for adjusting the position of the two-dimensional force sensor in the space. The positioning device 3 according to the present invention is not limited in scope, and may be any device that can fix the detection device to the object to be measured and ensure that the detection device can be strained by the applied force.
The detection device is arranged on the positioning device 3 and is movably connected with the positioning device 3, and the detection device tests the multidimensional acting force in the space where the detection device is positioned by using the shearing hole type.
The detection device is fixed on an object to be detected in space through the positioning device 3, when acting force is applied to the detection device, an included angle is generated between two stress surfaces of the detection device due to strain, the acting force is detected in a shear mode, then the multi-dimensional acting force is tested in the space, the measurement and vector calculation of the space multi-dimensional acting force in any two-dimensional force group mode in the space are realized, and the detection device has the characteristics of flexible installation mode and large measuring range.
Specifically, the detection device in this embodiment includes:
the first detection arm 1 is arranged on the positioning device 3, the first side wall is movably connected with the positioning device 3, and the first detection arm 1 is used for testing the loading acting force of the plane where the first detection arm is located by using a shearing hole type. The first detection arm 1 is subjected to strain and displacement due to an acting force, and is subjected to position change in space.
Specifically, the second detecting arm 2 in this embodiment is disposed on the positioning device 3, the first side wall is movably connected to the positioning device 3, and the second detecting arm 2 is used for testing the loading force of the plane where the second detecting arm is located by using a shear hole method. The second detection arm 2 is subjected to strain and displacement due to the acting force, and is subjected to position change in space.
Specifically, the first detecting arm 1 in this embodiment is provided with a first detecting hole 11, and the first detecting hole 11 is used for attaching the first strain gauge. When the first detection arm 1 receives the loaded acting force, a micro displacement is generated, the first detection hole 11 generates micro strain, and the first strain gauge outputs a first variable due to the micro strain.
Specifically, the second detecting arm 2 in this embodiment is provided with a second detecting hole 21, and the second detecting hole 21 is used for attaching a second strain gauge. When the second detection arm 2 receives the acting force of the loading, a small displacement is generated, the second detection hole 21 generates a micro strain, and the second strain gauge outputs a second variable due to the micro strain.
Specifically, an included angle a is formed between the lower end of the second detecting arm 2 and the left end of the first detecting arm 1 in this embodiment. The first detection arm 1 and the second detection arm 2 generate a changeable included angle due to the fact that the first detection arm and the second detection arm respectively receive loaded acting force and generate small displacement, and detection of any acting force in a space is achieved.
Specifically, the included angle A in this embodiment varies from 0 to 90. The included angle between the first detection arm 1 and the second detection arm 2 can be changed within the range of 0-90 degrees, and the detection of any group of two-dimensional forces in the plane where an object is located can be randomly detected in space.
Specifically, the first detection arm 1 in the present embodiment is rotatably connected to the second detection arm 2. The change range of the plane included angle formed by the first detection arm 1 and the second detection arm 2 is reflected, and the detection of the two-dimensional acting force in the plane is realized.
The embodiment is suitable for the application scene of the force test of any object to be tested in the space.
In summary, the detection device is fixed on the object to be detected in space through the positioning device 3, when acting force is applied to the detection device, an included angle is generated between two stress surfaces of the detection device due to strain, the acting force is detected in a shear mode, and then the multidimensional acting force is tested in the space, the measurement and vector calculation of the spatial multidimensional acting force in any two-dimensional force group form in the space are realized, and the strain type two-dimensional force sensor has the characteristics of flexible installation mode and large measuring range, and can be used for preparing strain type two-dimensional force sensors corresponding to different measuring range ranges according to actual test objects after limited tests, wherein the measuring range is 1KN to hundreds of KN.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the present invention.
Claims (6)
1. A strain-gauge two-dimensional force sensor for testing spatially multi-dimensional forces in a shear-hole manner, comprising:
the positioning device is arranged on an object to be detected in the space and used for adjusting the position of the two-dimensional force sensor in the space;
the detection device is arranged on the positioning device and is movably connected with the positioning device, and the detection device tests the multidimensional acting force in the space where the detection device is positioned by using a shearing hole type;
the detection device includes:
the first detection arm (1) is movably connected with the positioning device, and the first detection arm (1) is used for testing the loading acting force of the plane where the first detection arm is located by using a shearing hole type;
and the second detection arm (2) is movably connected with the positioning device, and the second detection arm (2) is used for testing the loading acting force of the plane where the second detection arm is positioned by using a shear hole type.
2. The strain type two-dimensional force sensor according to claim 1, wherein the first detecting arm (1) is provided with a first detecting hole (11), and the first detecting hole (11) is used for attaching a first strain gauge.
3. The strain type two-dimensional force sensor according to claim 1, wherein the second detecting arm (2) is provided with a second detecting hole (21), and the second detecting hole (21) is used for attaching a second strain gauge.
4. A strain-type two-dimensional force sensor according to claim 1, wherein the lower end of the second detecting arm (2) forms an angle a with the left end of the first detecting arm (1).
5. The strain-type two-dimensional force sensor according to claim 4, wherein the included angle A varies from 0 ° to 90 °.
6. A strain-type two-dimensional force sensor according to claim 5, characterized in that the first detecting arm (1) is rotatably connected to the second detecting arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221537246.9U CN218411505U (en) | 2022-06-17 | 2022-06-17 | Strain type two-dimensional force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221537246.9U CN218411505U (en) | 2022-06-17 | 2022-06-17 | Strain type two-dimensional force sensor |
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| Publication Number | Publication Date |
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| CN218411505U true CN218411505U (en) | 2023-01-31 |
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| CN202221537246.9U Active CN218411505U (en) | 2022-06-17 | 2022-06-17 | Strain type two-dimensional force sensor |
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- 2022-06-17 CN CN202221537246.9U patent/CN218411505U/en active Active
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