CN212585895U - Cantilevered tension sensor with overload protection - Google Patents
Cantilevered tension sensor with overload protection Download PDFInfo
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- CN212585895U CN212585895U CN202022306563.7U CN202022306563U CN212585895U CN 212585895 U CN212585895 U CN 212585895U CN 202022306563 U CN202022306563 U CN 202022306563U CN 212585895 U CN212585895 U CN 212585895U
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- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000000806 elastomer Substances 0.000 claims abstract description 21
- 230000002265 prevention Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a tension sensor technical field discloses cantilever type tension sensor with overload protection, including the elastomer, the outside cover of elastomer is equipped with the sleeve, the sleeve is connected through the screw with the elastomer, the elastomer includes connecting portion and round platform, connecting portion fix on round platform upper portion, just the middle part both sides of connecting portion transversely run through there are a plurality of circular through-holes, one side of circular through-hole is connected with the wire cut groove, the one end in wire cut groove is connected through type line grooving. The utility model discloses the wire-electrode cutting groove that sets up possesses the anti-overload design with type line cutting groove, and the design is very simple, need not pass through complicated installation, and the anti-overload protection sensor does not receive overload damage, and maximum design can be to 10 times transships, and the simple workable of wire-electrode cutting overload prevention moreover can save the processing cost.
Description
Technical Field
The utility model relates to a tension sensor technical field especially relates to cantilever type tension sensor with anti-overloading.
Background
The tension sensor is used for measuring the tension value of the coiled material in the tension control process. The strain gauge for pharmacy is characterized in that a tension strain gauge and a compression strain gauge are connected together in a bridge mode, the resistance value of the strain gauge is changed when external pressure is applied, and the change value is in direct proportion to the magnitude of the applied tension; the micro-displacement type is a type in which a load is applied by an external force to displace a plate spring, and then a tension is detected by a differential transformer, and is called a micro-displacement type tension detector because the displacement amount of the plate spring is extremely small, about ± 200 μm.
The existing cantilever type tension sensor has the following defects: the sensor has no overload prevention capability, the sensor is easily damaged during use, and zero output is large after the sensor is installed, so that data measured by the sensor is inaccurate, and large errors exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cantilever type tension sensor with overload protection, the wire-electrode cutting groove that the elastomer set up possesses overload protection design with type line cutting groove, and the design is very simple, need not pass through complicated installation, overload protection sensor does not receive overload damage, maximum design can be to 10 times overload, and the simple workable of wire-electrode cutting overload protection moreover, can save the advantage of processing cost, it does not have overload protection ability to have solved current cantilever type tension sensor, lead to the sensor to damage during the use easily, and the big problem of zero output after the sensor installation.
According to the utility model discloses cantilever type tension sensor with overload protection, including the elastomer, the outside cover of elastomer is equipped with the sleeve, the sleeve is connected through the screw with the elastomer, the elastomer includes connecting portion and round platform, connecting portion fix on round platform upper portion, just the middle part both sides of connecting portion transversely run through there are a plurality of circular through-holes, wire cut groove is connected to one side of circular through-hole, wire cut groove's one end is connected through type line grooving.
Furthermore, a through hole is formed in the side wall of the sleeve, and a threaded hole which is in the same straight line with the through hole is formed in the side wall of the connecting portion.
Furthermore, a screw is arranged in the through hole, and one end of the screw extends into the threaded hole and is fixedly connected with the connecting part.
Further, the upper portion of connecting portion is provided with the upper flat surface, the middle part on upper flat surface is provided with the through-hole, the through-hole extends to the lower part of elastomer.
Further, be provided with on the connecting portion in the outside of circular through-hole and mill out the plane, all be provided with the platform face on the connecting portion lateral wall at circular through-hole both ends.
Furthermore, the top end edge of the round platform is provided with a plurality of fixing holes, and the fixing holes are fixedly connected with external parts through screws.
Further, the bottom middle part of round platform is provided with concave profile, concave profile's diameter is the same with connecting portion.
Further, the bottom end of the sleeve abuts against the circular truncated cone, and the connecting portion abuts against the inside of the sleeve.
Compared with the prior art, the utility model beneficial effect who has is:
the wire-electrode cutting groove and the convex line-electrode cutting groove which are arranged on the elastic body are provided with an overload prevention design, the design is very simple, complex installation is not needed, the overload prevention sensor is not damaged by overload, the maximum design can achieve 10-time overload, the wire-electrode cutting overload prevention is simple and easy to process, the processing cost can be saved, the position of the wire-electrode cutting groove is not limited to the position, any position of the plane is protected, and the concave surface at the bottom of the elastic body can ensure zero offset after the installation of the sensor, so that the performance of the sensor and the zero point are more stable.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a cantilever type tension sensor with overload prevention according to the present invention;
fig. 2 is a schematic view of the upper structure of the elastomer in the cantilever type tension sensor with overload prevention of the present invention;
fig. 3 is a schematic bottom structure diagram of the elastomer in the cantilever type tension sensor with overload protection according to the present invention.
In the figure: 1-elastic body, 11-upper plane, 111-through hole, 12-connecting part, 121-milled plane, 122-platform surface, 123-circular through hole, 124-linear cutting groove, 125-convex linear cutting groove, 126-threaded hole, 13-circular table, 131-concave surface, 132-fixing hole and 2-sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-3, the preferred embodiment of the present invention is shown.
Cantilever type tension sensor with overload protection, including elastomer 1, the outside cover of elastomer 1 is equipped with sleeve 2, sleeve 2 is connected through the screw with elastomer 1, elastomer 1 includes connecting portion 12 and round platform 13, connecting portion 12 is fixed on round platform 13 upper portion, and the middle part both sides of connecting portion 12 transversely run through there are a plurality of circular through-holes 123, wire cut groove 124 is connected to one side of circular through-hole 123, wire cut groove 124's one end is connected through type line grooving 125, wire cut groove 124 and type line grooving 125 that elastomer 1 set up possess the overload protection design, and the design is very simple, need not pass through complicated installation, overload protection sensor does not receive overload damage, maximum design can overload 10 times, and the simple workable of wire cut overload protection, can save the processing cost.
In this embodiment, a through hole is formed in the side wall of the sleeve 2, a threaded hole 126 which is in the same straight line with the through hole is formed in the side wall of the connecting portion 12, a screw is arranged in the through hole 126, and one end of the screw extends into the threaded hole 126 and is fixedly connected with the connecting portion 12, so that the elastic body and the sleeve are effectively fixed.
In this embodiment, the upper portion of the connection portion 12 is provided with an upper plane 11, the middle portion of the upper plane 11 is provided with a through hole 111, the through hole 11 extends to the lower portion of the elastic body 1, and the through hole 11 is used for the penetration of the shaft of the roller.
In this embodiment, a milled plane 121 is disposed on the connecting portion 12 outside the circular through hole 123, the side walls of the connecting portion 12 at the two ends of the circular through hole 123 are both provided with a terrace surface 122, the core strain gage of the sensor is attached to the milled plane 121, two terrace surfaces 122 are milled on the two sides of the milled plane 121, and the size of the terrace surface 122 depends on the size of the measuring range of the sensor.
In this embodiment, the top end edges of the circular truncated cone 13 are provided with a plurality of fixing holes 132, and the fixing holes 132 are connected and fixed with external components through screws, so as to facilitate the installation and fixation of the tension sensor.
In this embodiment, the bottom middle part of round platform 13 is provided with concave profile 131, and the diameter of concave profile 131 is the same with connecting portion 12, and concave profile 131 avoids the sensor to be installed the back, and because the unevenness of equipment face and sensor face makes the sensor take place to warp and leads to zero output big, the bottom butt of sleeve 2 is on round platform 13, and connecting portion 12 and the inside butt of sleeve 2 to realize preliminary fixed.
When the technical scheme is used, the elastic body 1 is designed with special linear cutting, the overload prevention capability can be generated after the force applied to the sensor is greater than the rated load, the concave surface 131 at the bottom of the elastic body 1 can ensure the zero point offset after the sensor is installed, the upper part of the elastic body 1 is the upper plane 11, in the center of the upper plane 11, there is a through hole 111, the through hole 111 is used for the shaft of the roller to penetrate, so that it can contact with the sensor, a milled plane 121 on the connecting part 12, on which the strain gauge of the core part of the sensor is applied, two platform surfaces 122 are milled on both sides of the milled plane 121, the size of the plane depends on the measuring range of the sensor, two circular through holes 123 are symmetrically distributed on the upper part and the lower part of the connecting part 12 respectively, the middle of each through hole is communicated by a groove, the number of the circular through holes is not limited to two, and 3-6 circular through holes are also suitable; the circular through holes 123 are communicated with each other by using a wire cutting groove 124, a convex wire cutting groove 125 with smaller clearance is designed in the middle of the wire cutting groove 124 for preventing overload of the sensor, when the sensor is stressed too much, namely the deformation amount actually generated exceeds the clearance of the rated design overload groove, the convex wire cutting groove 125 can contact up and down, so that the elastic body is not deformed any more, and the aim of preventing overload is achieved,
specifically, the wire cutting groove is not limited to a convex shape, an S shape, a Z shape and the like, and is suitable for the similar principle, threaded holes 126 are symmetrically distributed on the front arc surface and the rear arc surface of the connecting part 12 and used for fastening a shaft of a roller so that the roller does not move left and right, the bottom of the elastic body 1 is the round platform 13, the center position of the bottom of the round platform 13 is the concave surface 131, the purpose of the wire cutting groove is to avoid that after a sensor is installed, the sensor deforms due to the unevenness of an equipment surface and a sensor surface to cause large zero output, the diameter of the circle cannot be smaller than that of the connecting part 12, and 4 through holes are uniformly distributed on the periphery of the round platform 13 and used for being connected with the equipment.
Specifically, the wire-cut groove 124 and the convex-shaped wire-cut groove 125 provided in the elastic body 1 have an overload prevention design, and the design is very simple, and complex installation is not required, so that the overload prevention sensor is not damaged by overload, the maximum design can reach 10 times of overload, and the wire-cut overload prevention is simple and easy to process, so that the processing cost can be saved, in addition, the position of the wire-cut groove 124 is not limited to the position, any position on the plane can be protected, and the concave 131 surface at the bottom of the elastic body 1 can ensure the zero offset after the installation of the sensor, so that the performance of the sensor and the zero point are more stable.
In this embodiment, the whole operation process can be controlled by a computer, and PLC and the like are added to realize automatic operation control, and in each operation link, signal feedback can be performed by setting a sensor to realize sequential execution of steps, which are conventional knowledge of the current automatic control, and are not repeated in this embodiment.
The details of the present invention are well known to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Cantilever type tension sensor with prevent overload, its characterized in that: the elastic piece comprises an elastic body, the outside cover of elastomer is equipped with the sleeve, the sleeve is connected through the screw with the elastomer, the elastomer includes connecting portion and round platform, connecting portion fix on round platform upper portion, just the middle part both sides of connecting portion transversely run through there are a plurality of circular through-holes, the wire cut groove is connected to one side of circular through-hole, the one end in wire cut groove is connected through the type of dogleg line grooving.
2. The cantilevered tension sensor with overload protection of claim 1 wherein: the side wall of the sleeve is provided with a through hole, and the side wall of the connecting part is provided with a threaded hole which is in the same straight line with the through hole.
3. The cantilevered tension sensor with overload protection of claim 2 wherein: and a screw is arranged in the through hole, and one end of the screw extends into the threaded hole and is fixedly connected with the connecting part.
4. The cantilevered tension sensor with overload protection of claim 3 wherein: the upper portion of connecting portion is provided with the upper flat surface, the middle part on upper flat surface is provided with the through-hole, the through-hole extends to the lower part of elastomer.
5. The cantilevered tension sensor with overload protection of claim 4, wherein: the connecting portion in the outside of circular through-hole is provided with and mills out the plane, all be provided with the platform face on the connecting portion lateral wall at circular through-hole both ends.
6. The cantilevered tension sensor with overload protection of claim 5, wherein: the top edge of round platform all is provided with a plurality of fixed orificess, the fixed orifices passes through the screw realization to be fixed with being connected of external component.
7. The cantilevered tension sensor with overload protection of claim 6, wherein: the bottom middle part of round platform is provided with concave profile, the diameter of concave profile is the same with connecting portion.
8. The cantilevered tension sensor with overload protection of claim 7, wherein: the bottom end of the sleeve abuts against the round table, and the connecting portion abuts against the inside of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022306563.7U CN212585895U (en) | 2020-10-15 | 2020-10-15 | Cantilevered tension sensor with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022306563.7U CN212585895U (en) | 2020-10-15 | 2020-10-15 | Cantilevered tension sensor with overload protection |
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| Publication Number | Publication Date |
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| CN212585895U true CN212585895U (en) | 2021-02-23 |
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| CN202022306563.7U Active CN212585895U (en) | 2020-10-15 | 2020-10-15 | Cantilevered tension sensor with overload protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082686A (en) * | 2020-10-15 | 2020-12-15 | 深圳市鑫精诚科技有限公司 | Cantilevered tension sensor with overload protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082686A (en) * | 2020-10-15 | 2020-12-15 | 深圳市鑫精诚科技有限公司 | Cantilevered tension sensor with overload protection |
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Effective date of registration: 20231016 Address after: 518000, 1st to 2nd floors, Building 101, Building 17, Industrial Zone 228, Silian Community, Henggang Street, Longgang District, Shenzhen City, Guangdong Province (i.e. Building A02, Dayun AI Town) Patentee after: Shenzhen xinjingcheng Sensor Technology Co.,Ltd. Address before: 518000 Room 101, building 17, 228 Industrial Zone, Silian community, Henggang street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN XJC TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |