CN115076201B - Stress sensing screw - Google Patents
Stress sensing screw Download PDFInfo
- Publication number
- CN115076201B CN115076201B CN202110389718.4A CN202110389718A CN115076201B CN 115076201 B CN115076201 B CN 115076201B CN 202110389718 A CN202110389718 A CN 202110389718A CN 115076201 B CN115076201 B CN 115076201B
- Authority
- CN
- China
- Prior art keywords
- carrier
- hole
- stress sensing
- stress
- accommodating hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Connection Of Plates (AREA)
Abstract
The utility model provides a stress sensing screw includes the body of rod, carrier and stress sensing piece, this body of rod is equipped with first accommodation hole, this carrier sets up in this first accommodation hole, and this carrier with surface and this first accommodation hole's pore wall face, face-to-face contact, this stress sensing piece sets up in this carrier's loading face, and this body of rod reveals this stress sensing piece, this stress sensing screw is used for being set up in at least one component, in order to monitor whether this component atress has been deformed after, or monitor whether this component bears improper stress (such as tension, shear stress, torsion etc.).
Description
Technical Field
The invention relates to a stress sensing screw for monitoring stress (such as tension, shear stress, torsion and the like) born by a component.
Background
After the mechanism is used, the components in the mechanism are deformed due to the use environment, the use time and the stress, and when the deformation of the components exceeds the allowable deformation margin, the structural strength of the mechanism (such as a bridge and the like) is affected, or abnormal sounds are generated when the mechanism (such as a manufacturing mechanism or a transportation mechanism and the like) operates.
In order to avoid the problems of structural strength being affected or abnormal and abnormal sounds being generated due to deformation of the components after the components are subjected to stress, the taiwan patent application No. 103203598 discloses a screw hard force sensing device which is used for sensing that a groove is concavely formed in a threaded portion 120 of a screw 100, and a stress sensing element 121 is arranged in the groove of the threaded portion 120 to sense the stress born by the threaded portion 120, however, since the threaded portion 120 is provided with the groove, besides affecting the structural strength of the sensing screw 100, the stress sensing element 121 arranged in the groove cannot immediately sense that the threaded portion 120 is deformed.
Disclosure of Invention
The invention discloses a stress sensing screw, which mainly aims to arrange a carrier in a first accommodating hole of a rod body, wherein the outer surface of the carrier is in face-to-face contact with the hole wall surface of the first accommodating hole so as to increase the structural strength of the stress sensing screw, and a stress sensing piece is arranged on the bearing surface of the carrier, so that the rod body exposes the stress sensing piece, and the stress sensing piece immediately senses whether the stress sensing screw integrated by the rod body and the carrier deforms or not.
The invention relates to a stress sensing screw, which comprises a rod body, a carrier and a stress sensing piece, wherein the rod body is provided with a screwing surface, a first end part, a second end part and a first accommodating hole, the screwing surface is provided with threads, a first axis extends along the screwing surface, the second end part is provided with a bottom surface, the first accommodating hole is concavely arranged on the bottom surface of the second end part along the first axis direction, the first accommodating hole is provided with a hole wall surface, the carrier is arranged in the first accommodating hole, the carrier is provided with an outer surface and a bearing surface, the carrier is in face-to-face contact with the hole wall surface of the first accommodating hole by the outer surface, so that the rod body and the carrier are combined into a whole, a second axis extends along the bearing surface, an included angle is formed between the first axis and the second axis, the stress sensing piece is arranged on the bearing surface of the carrier, and the rod body exposes the stress sensing piece so as to sense whether the rod body and the carrier which are combined into a whole deform or not.
Preferably, along the first axis direction, the carrier has a through hole, the rod body has a second accommodating hole, the second accommodating hole is concavely arranged at the first end, the through hole is communicated with the second accommodating hole and the bearing surface, and the through hole and the second accommodating hole are used for accommodating a wire electrically connected with the stress sensing element.
Preferably, the first inner diameter of the first accommodating hole is larger than the second inner diameter of the second accommodating hole.
Preferably, the rod body has a first hardness, and the carrier has a second hardness, the second hardness being not greater than the first hardness.
Preferably, the rod body and the carrier are made of different materials.
Preferably, the carrier has a stopping portion, the stopping portion is convexly disposed on the outer surface, an abutting surface of the stopping portion faces the bottom surface of the second end portion, and the abutting surface abuts against the bottom surface.
Preferably, the rod body has a first outer diameter, the stop portion is annularly arranged on the outer surface, and the stop portion has a second outer diameter smaller than the first outer diameter.
The invention increases the structural strength of the stress sensing screw by the carrier arranged in the rod body and the hole wall surface of the first accommodating hole in face-to-face contact, and enables the stress sensing piece to be exposed by the rod body so as to enable the stress sensing piece to immediately sense whether the stress sensing screw integrated by the rod body and the carrier deforms or not.
Drawings
Fig. 1: the invention discloses a perspective view of a stress sensing screw.
Fig. 2: the invention discloses a perspective view of a stress sensing screw.
Fig. 3: the stress sensing screw of the present invention is an exploded perspective view.
Fig. 4: the stress sensing screw of the first embodiment of the present invention is provided in a cross-sectional view of a member.
Fig. 5: the stress sensing screw of the first embodiment of the invention is arranged on the cross section of the two components.
Fig. 6: the stress sensing screw of the second embodiment of the invention is arranged on a cross-sectional view of a component.
[ Main element symbols description ]
100: Stress sensing screw 110: rod body
111: Screw surface 112: first end portion
113: Second end 113a: bottom surface
114: The first accommodation hole 114a: pore wall surface
115: The second accommodation hole 120: carrier body
121: Outer surface 122: bearing surface
123: Through hole 124: stop part
124A: the interference surface 130: stress sensing element
131: Wire a: component part
B: first member C: second component
D1: first outer diameter D2: second outer diameter
R1: first inner diameter R2: a second inner diameter
S: joint interface X: a second axis
Y: first axis Z: included angle
Detailed Description
Referring to fig. 1,2 and 3, a stress sensing screw 100 according to a first embodiment of the present invention includes a rod 110, a carrier 120 and a stress sensing member 130, wherein the stress sensing screw 100 is configured to be disposed in at least one member, and the member may be selected from a bridge, a manufacturing mechanism or a transportation mechanism, but is not limited thereto, the stress sensing screw 100 is configured to monitor whether the member is deformed after being subjected to a force (such as a pressure, a tension, a shear stress, a torsion, etc.), and the stress sensing screw 100 is not limited to be disposed in a single member, and the stress sensing screw 100 is disposed in a member a to monitor whether the member a is deformed after being subjected to a force, or the stress sensing screw 100 is disposed in a first member B and a second member C, and the stress sensing screw 100 is configured to monitor whether the first member B and the second member C are subjected to an improper stress (such as a tension, a torsion, a shear stress, etc.) through a joint interface S of the first member B and the second member C, referring to fig. 5.
Referring to fig. 3 and 4, the rod 110 has a threaded surface 111, a first end 112, a second end 113 and a first accommodating hole 114, the threaded surface 111 is provided with threads (not shown), a first axis Y extends along the threaded surface 111, the second end 113 has a bottom 113a, the first accommodating hole 114 is concavely disposed on the bottom 113a of the second end 113 along the first axis Y, the first accommodating hole 114 has a hole wall 114a, in this embodiment, the rod 110 further has a second accommodating hole 115, the second accommodating hole 115 is concavely disposed on the first end 112 along the first axis Y, and the second accommodating hole 115 is communicated with the first accommodating hole 114.
Referring to fig. 3 and 4, the carrier 120 is disposed in the first accommodating hole 114, the carrier 120 has an outer surface 121 and a bearing surface 122, the carrier 120 is in face-to-face contact with the hole wall 114a of the first accommodating hole 114 by the outer surface 121, so that the rod 110 and the carrier 120 are integrated, in this embodiment, a second axis X extends along the bearing surface 122, an included angle Z is formed between the first axis Y and the second axis X, the rod 110 has a first hardness, the carrier 120 has a second hardness, preferably, the second hardness is not greater than the first hardness, the rod 110 and the carrier 120 can be made of different materials, and when the rod 110 is deformed due to stress, the carrier 120 can be deformed along with the rod 110 by the second hardness is not greater than the first hardness.
Referring to fig. 3 and 4, the stress sensor 130 is disposed on the bearing surface 122 of the carrier 120, and the rod 110 exposes the stress sensor 130, where the stress sensor 130 is selected from sensing elements such as strain gauges, and the stress sensor 130 is used for sensing the carrier 120 to sense whether the rod 110 and the carrier 120 combined into one body are deformed, so as to monitor whether the member a is deformed after being stressed, or whether the first member B and the second member C are deformed after being stressed.
Referring to fig. 3 and 4, in the present embodiment, along the first axis Y direction, the carrier 120 has a through hole 123, the through hole 123 communicates with the second accommodating hole 115 and the carrying surface 122, and the through hole 123 and the second accommodating hole 115 are used for accommodating a conductive wire 131 electrically connected to the stress sensor 130.
Referring to fig. 3 and 4, in the present embodiment, the carrier 120 has a blocking portion 124, the blocking portion 124 is disposed on the outer surface 121 in a protruding manner, the blocking portion 124 has an abutting surface 124a, and the abutting surface 124a faces the bottom surface 113a of the second end 113, the abutting surface 124a abuts against the bottom surface 113a to increase the bonding area between the carrier 120 and the rod 110 and expose the rod 110 to the stress sensor 130, and the blocking portion 124 is used to limit the depth of the carrier 120 disposed in the first accommodating hole 114 and expose the rod 110 to the stress sensor 130.
Referring to fig. 4, in the present embodiment, the rod 110 has a first outer diameter D1, the stopping portion 124 is disposed around the outer surface 121, and the stopping portion 124 has a second outer diameter D2, and the second outer diameter D2 is smaller than the first outer diameter D1, so that the stopping portion 124 does not contact the member a or the second member C in fig. 5, so as to avoid that the stress sensor 130 cannot sense whether the rod 110 and the carrier 120 that are combined together in a face-to-face contact are deformed.
Please refer to fig. 6, which is a second embodiment of the present invention, the second embodiment differs from the first embodiment of fig. 4 and 5 in that the carrier 120 is not provided with the stop portion 124, and in the first and second embodiments, the first inner diameter R1 of the first accommodating hole 114 is larger than the second inner diameter R2 of the second accommodating hole 115 to limit the depth of the carrier 120 disposed in the first accommodating hole 114, so that the rod 110 exposes the stress sensor 130.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (7)
1. A stress sensing screw comprising:
The rod body is provided with a screwing surface, a first end part, a second end part and a first accommodating hole, wherein the screwing surface is provided with threads, a first axis extends along the screwing surface, the second end part is provided with a bottom surface, the first accommodating hole is concavely arranged on the bottom surface of the second end part along the first axis direction, and the first accommodating hole is provided with a hole wall surface;
The carrier is arranged in the first accommodating hole and is provided with an outer surface and a bearing surface, the carrier is in face-to-face contact with the hole wall surface of the first accommodating hole by the outer surface, so that the rod body and the carrier are combined into a whole, a second axis extends along the bearing surface, and an included angle is formed between the first axis and the second axis; and
The stress sensing piece is arranged on the bearing surface of the carrier, and the rod body exposes the stress sensing piece to sense whether the rod body and the carrier which are integrated into a whole deform or not.
2. The screw according to claim 1, wherein along the first axis direction, the carrier has a through hole, the rod body has a second accommodating hole, the second accommodating hole is concavely disposed at the first end, the through hole communicates with the second accommodating hole and the bearing surface, and the through hole and the second accommodating hole are used for accommodating a wire electrically connected to the stress sensing element.
3. The stress sensing screw of claim 2, wherein the first inner diameter of the first receiving hole is greater than the second inner diameter of the second receiving hole.
4. The stress sensing screw of claim 1, wherein the shank has a first hardness and the carrier has a second hardness, the second hardness being no greater than the first hardness.
5. The stress-sensing screw of claim 4, wherein the rod and the carrier are of different materials.
6. A stress sensing screw according to claim 1 or 3, wherein the carrier has a stop portion, the stop portion is convexly disposed on the outer surface, an abutting surface of the stop portion faces the bottom surface of the second end portion, and the abutting surface abuts against the bottom surface.
7. The screw of claim 6, wherein the shank has a first outer diameter, the stop portion is disposed around the outer surface, and the stop portion has a second outer diameter that is smaller than the first outer diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110109413 | 2021-03-16 | ||
| TW110109413A TWI737574B (en) | 2021-03-16 | 2021-03-16 | Screw having stress sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115076201A CN115076201A (en) | 2022-09-20 |
| CN115076201B true CN115076201B (en) | 2024-06-11 |
Family
ID=78283351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110389718.4A Active CN115076201B (en) | 2021-03-16 | 2021-04-12 | Stress sensing screw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115076201B (en) |
| TW (1) | TWI737574B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004798A (en) * | 2000-06-22 | 2002-01-09 | Akira Sugano | Fastening body and strain sensing system using fastening body |
| CN101713432A (en) * | 2008-10-07 | 2010-05-26 | 谢智庆 | Firmware capable of sensing deformation |
| CN201787935U (en) * | 2010-08-19 | 2011-04-06 | 浙江吉利汽车研究院有限公司 | Body-in-white door and window deformation testing device |
| TW201435222A (en) * | 2013-03-14 | 2014-09-16 | Nat Univ Chin Yi Technology | Bolt with function of detecting variations |
| CN105829847A (en) * | 2013-11-18 | 2016-08-03 | 斯凯孚公司 | Bolt sensor assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2413797A (en) * | 1945-04-16 | 1947-01-07 | Gerotor May Corp | Fastening device |
| US5472302A (en) * | 1993-05-24 | 1995-12-05 | Yandle, Ii; S. E. | Bolts having indicators |
| CN208793417U (en) * | 2018-09-30 | 2019-04-26 | 郑州大学 | A kind of venting of dust explosion bolt system |
| US20200208672A1 (en) * | 2018-12-31 | 2020-07-02 | Cory Sean Waxman | Apparatus and Method to Establish Two Reference Positions Within a Fastener In Order to Allow the Measurement and Monitoring of Fastener Load |
| JP2020186950A (en) * | 2019-05-10 | 2020-11-19 | アルプスアルパイン株式会社 | Bolt and detection system |
-
2021
- 2021-03-16 TW TW110109413A patent/TWI737574B/en active
- 2021-04-12 CN CN202110389718.4A patent/CN115076201B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004798A (en) * | 2000-06-22 | 2002-01-09 | Akira Sugano | Fastening body and strain sensing system using fastening body |
| CN101713432A (en) * | 2008-10-07 | 2010-05-26 | 谢智庆 | Firmware capable of sensing deformation |
| CN201787935U (en) * | 2010-08-19 | 2011-04-06 | 浙江吉利汽车研究院有限公司 | Body-in-white door and window deformation testing device |
| TW201435222A (en) * | 2013-03-14 | 2014-09-16 | Nat Univ Chin Yi Technology | Bolt with function of detecting variations |
| CN105829847A (en) * | 2013-11-18 | 2016-08-03 | 斯凯孚公司 | Bolt sensor assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI737574B (en) | 2021-08-21 |
| CN115076201A (en) | 2022-09-20 |
| TW202238006A (en) | 2022-10-01 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |