CN109488853A - Sensor pre-pressing structure - Google Patents
Sensor pre-pressing structure Download PDFInfo
- Publication number
- CN109488853A CN109488853A CN201910012197.3A CN201910012197A CN109488853A CN 109488853 A CN109488853 A CN 109488853A CN 201910012197 A CN201910012197 A CN 201910012197A CN 109488853 A CN109488853 A CN 109488853A
- Authority
- CN
- China
- Prior art keywords
- sensor
- fixing element
- upper fixing
- fixing piece
- pressing structure
- 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.)
- Pending
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004519 manufacturing 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
Abstract
The invention discloses a kind of sensor pre-pressing structures, including sensor, upper fixing element and lower fixing piece, sensor is formed as tubular structure, upper fixing element is formed as the tubular structure for having top, it is provided with centre bore at the top of upper fixing element, lower fixing piece is threadedly coupled with upper fixing element, and sensor is installed between upper fixing element and lower fixing piece, the upper surface of sensor is compressed with upper fixing element, and the bottom surface of sensor and lower fixing piece compress.In order to overcome column rod piece caused by the sensor pre-pressing structure used in prior art etc. to need guiding through the case where sensor is not available, the present invention provides a kind of sensor pre-pressing structure, its structure is simple, it is easy to assembly, it efficiently solves the problems, such as that tradition pre-tightens sensor and is unable to satisfy under the testing requirement that column rod piece passes through sensor, extends the use scope of sensor pre-pressing structure.
Description
Technical field
The present invention relates to sensor manufacture and use field more particularly to a kind of sensor pre-pressing structures.
Background technique
Due to sensing element, some kinds of sensor (such as piezoelectric force transducer) does not have in use
It is not a linear relationship between the output signal and input physical quantity of sensor, often in the first of curve when applying pretightning force
Beginning section has a certain range of non-linear section, this sensitivity coefficient that will lead to sensor is not a constant, causes to test number
According to inaccuracy, or even it is not available.To solve the above problems, each sensor producer mostly uses and is equipped with pre-pressing structure to sensor,
Pretightning force is applied to sensor, and the size of pretightning force is made to be more than non-linear partial, is made between output signal and input physical quantity
Relationship enter the range of linearity, then linearity range is demarcated, provides sensitivity coefficient, it is whole to be used as finished product.
The application of pretightning force, conventional method are respectively to increase the quality for having centre bore in the upper and lower end face of sensor
Block is inserted into bolt in centre bore, by tightening bolt presses mass block, to pre-tighten to sensor.Using such side
The sensor that method pre-tightens is easy to use in the physical quantity tested between two faces, but for there is column rod piece such as bolt etc. to need guiding through
The case where sensor, is not available then, limits the use scope of sensor.
How above-mentioned technical problem is solved into the striving direction of those skilled in the art.
Summary of the invention
The object of the invention is that providing a kind of sensor pre-pressing structure to solve the above-mentioned problems.
To achieve the goals above, the present invention provides a kind of sensor pre-pressing structure, including sensor, sensor are formed as
Tubular structure, sensor pre-pressing structure further include upper fixing element and lower fixing piece, and upper fixing element is formed as the tubular knot for having top
Structure, upper fixing element top are provided with centre bore, and sensor is mounted between upper fixing element and lower fixing piece with being compacted.
Optionally, fixing piece is formed as the tubular structure for having bottom, and upper fixing element is threadedly coupled with lower fixing piece, sensor
The upper surface of it is tight with the press of upper fixing element cylinder, the bottom surface of sensor and lower fixing piece cylinder base pressure are tight.
Optionally, it is provided with external screw thread on the drum outer wall of upper fixing element, is provided with internal screw thread on the cylinder inner wall of lower fixing piece,
External screw thread and screw-internal thread fit.
Optionally, it is provided with internal screw thread on the cylinder inner wall of upper fixing element, is provided with external screw thread on the drum outer wall of lower fixing piece,
External screw thread and screw-internal thread fit.
Optionally, upper fixing element, sensor and lower fixing piece three coaxial arrangement.
Optionally, the cable hole for installing sensor wire is provided on lower fixing piece.
Optionally, locating slot is provided on lower fixing piece, covers disposed on sensor is equipped with for circumferentially positioned positioning protrusion, fixed
Position protrusion insertion locating slot installation.
Optionally, the cable hole for installing sensor wire is provided on upper fixing element.
Optionally, locating slot is provided on upper fixing element, covers disposed on sensor is equipped with for circumferentially positioned positioning protrusion, fixed
Position protrusion insertion locating slot installation.
The beneficial effects of the present invention are:
In order to overcome column rod piece caused by the sensor pre-pressing structure used in prior art etc. need guiding through sensor without
The case where method uses, the present invention provides a kind of sensor pre-pressing structure, and structure is simple, easy to assembly, efficiently solves biography
System pre-tightens the problem of sensor is unable to satisfy under the testing requirement that column rod piece passes through sensor, extends the pre- tight knot of sensor
The use scope of structure.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of sensor pre-pressing structure of the present invention；
Fig. 2 is the structural schematic diagram of upper fixing element of the present invention；
Fig. 3 is the structural schematic diagram of specific embodiment of the present invention.
Description of symbols
1- upper fixing element, 2- sensor, fixing piece under 3-, 4- centre bore A, 5- sensor wire, 6- cable hole, the center 7-
Hole, the upper connected piece of 8-, connected piece under 9-, 10- connection bolt, 11- attaching nut.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, inside and outside " is usually base
It is defined, specifically can refer to page shown in FIG. 1 and combines corresponding in orientation or positional relationship shown in the drawings
The positional relationship of components in the other drawings.In the following description when referring to the accompanying drawings, unless otherwise indicated, the phase in different attached drawings
With the same or similar element of digital representation.
As depicted in figs. 1 and 2, a kind of sensor pre-pressing structure of the present invention, including sensor 2,1 and of upper fixing element
Lower fixing piece 3.
Sensor 2 is formed as tubular structure, and further, sensor 2 is formed as stepped cylinder structure, sensor 2
Upper end section be path, sensor 2 lower end section be major diameter, upper end section and lower end section joint be cascaded surface.
Upper fixing element 1 is formed as the tubular structure for having top, is provided with centre bore 7 at the top of upper fixing element 1.
Lower fixing piece 3 is formed as the tubular structure for having bottom, the barrel screw thread of the barrel of upper fixing element 1 and lower fixing piece 3
Connection, setting following two situation of screw thread: one is that external screw thread is arranged on 1 outer tube wall of upper fixing element, in lower fixing piece 3
Internal screw thread is provided on barrel；Secondly being provided on lower 3 outer tube wall of fixing piece for internal screw thread is arranged on 1 inner tube wall of upper fixing element
External screw thread.
Sensor 2 is installed between upper fixing element 1 and lower fixing piece 3, and fixing piece, sensor 2 and lower 3 three of fixing piece are same
Axis setting.The upper end section of sensor 2 is cooperated by centre bore 7, the outer diameter and 7 bore clearance of centre bore of 2 upper end section of sensor, rotation
Turn to turn upper fixing element 1 or lower fixing piece 3, keeps the cascaded surface of sensor 2 and upper fixing element 1 press tight, the bottom surface of sensor 2
It is tight with 3 base pressures of lower fixing piece, achieve the purpose that sensor 2 pre-tightens.
For the ease of the cabling of sensor wire 5, cable hole 6, cabling are set on 1 up or down fixing piece 3 of upper fixing element
Hole 6 is arranged on the barrel of upper fixing element 1 or lower fixing piece 3.
Sensor 2 rotates with when tightening between upper fixing element 1 and lower fixing piece 3 in order to prevent, upper fixing element 1 or lower solid
Determine that locating slot is arranged on part 3, the corresponding position of sensor 2 is used for circumferentially positioned positioning protrusion, and positioning protrusion is embedded in locating slot
Installation.
Locating slot and cable hole 6 should be the same as on upper fixing elements 1 or lower fixing piece 3.
Specific embodiments of the present invention are as follows:
It is a through-hole at the central axes of sensor 2, lower fixing piece 3 is provided with centre bore A4, the installation of 2 pre-tightening mechanism of sensor
Between upper connected piece 8 and lower connected piece 9, connection bolt 10 sequentially passes through the center of lower connected piece 9, lower fixing piece 3
Hole A4, the through-hole of sensor 2, upper fixing element 1 centre bore 7 and upper connected piece 8, connection bolt 10 pass through after use attaching nut
11 fastenings, can measure the power between connected piece 8 and lower connected piece 9.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (9)
1. a kind of sensor pre-pressing structure, including sensor, sensor are formed as tubular structure, it is characterised in that: sensor is pre-
Locking structure further includes upper fixing element and lower fixing piece, and upper fixing element is formed as the tubular structure for having top, sets at the top of upper fixing element
It is equipped with centre bore, sensor is mounted between upper fixing element and lower fixing piece with being compacted.
2. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: lower fixing piece is formed as having bottom
Tubular structure, upper fixing element are threadedly coupled with lower fixing piece, and the upper surface of sensor and the press of upper fixing element cylinder are tight, the bottom of sensor
Face and lower fixing piece cylinder base pressure are tight.
3. a kind of sensor pre-pressing structure according to claim 2, it is characterised in that: be arranged on the drum outer wall of upper fixing element
There is external screw thread, is provided with internal screw thread, external screw thread and screw-internal thread fit on the cylinder inner wall of lower fixing piece.
4. a kind of sensor pre-pressing structure according to claim 2, it is characterised in that: be arranged on the cylinder inner wall of upper fixing element
There is internal screw thread, is provided with external screw thread, external screw thread and screw-internal thread fit on the drum outer wall of lower fixing piece.
5. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: upper fixing element, sensor and lower solid
Determine part three coaxial arrangement.
6. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: be provided on lower fixing piece for pacifying
Fill the cable hole of sensor wire.
7. a kind of sensor pre-pressing structure according to claim 6, it is characterised in that: be provided with positioning on lower fixing piece
Slot, covers disposed on sensor are equipped with for circumferentially positioned positioning protrusion, and positioning protrusion is embedded in locating slot installation.
8. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: be provided on upper fixing element for pacifying
Fill the cable hole of sensor wire.
9. a kind of sensor pre-pressing structure according to claim 8, it is characterised in that: be provided with positioning on upper fixing element
Slot, covers disposed on sensor are equipped with for circumferentially positioned positioning protrusion, and positioning protrusion is embedded in locating slot installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012197.3A CN109488853A (en) | 2019-01-07 | 2019-01-07 | Sensor pre-pressing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012197.3A CN109488853A (en) | 2019-01-07 | 2019-01-07 | Sensor pre-pressing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109488853A true CN109488853A (en) | 2019-03-19 |
Family
ID=65714109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910012197.3A Pending CN109488853A (en) | 2019-01-07 | 2019-01-07 | Sensor pre-pressing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488853A (en) |
Citations (13)
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|---|---|---|---|---|
| US5452629A (en) * | 1993-04-27 | 1995-09-26 | Westfalia Becorit Industrietechnik Gmbh | Device for selectively tensioning and clamping studs mounted on a pressure vessel to permit nuts to be tightened or loosened |
| CN2597974Y (en) * | 2003-02-13 | 2004-01-07 | 李君实 | High-strength bolt torque coefficient tester |
| WO2009016030A1 (en) * | 2007-07-27 | 2009-02-05 | Piezocryst Advanced Sensorics Gmbh | Force sensor |
| CN101650243A (en) * | 2009-07-16 | 2010-02-17 | 大连理工大学 | Piezoelectric type device for measuring drilling force of deep hole |
| CN203471727U (en) * | 2013-05-17 | 2014-03-12 | 李鹏 | Novel hydraulic bolt tensioner |
| US20140373636A1 (en) * | 2013-06-19 | 2014-12-25 | Chun-Chu Yang | Synchronous pre-tensionable sensing screw with fiber bragg grating devices |
| CN104406726A (en) * | 2014-10-31 | 2015-03-11 | 北京宇航系统工程研究所 | Calibration apparatus for relation between pretightening force and pretightening moment, and calibration method thereof |
| CN105598913A (en) * | 2016-03-28 | 2016-05-25 | 重庆超力高科技股份有限公司 | Stud release type gun head |
| CN106041503A (en) * | 2015-04-09 | 2016-10-26 | 斯凯孚公司 | Tensioning device for pre-stressing assembly with threaded rod |
| CN108181037A (en) * | 2017-11-20 | 2018-06-19 | 上海宏予测试仪器有限公司 | A kind of pretightening force measuring apparatus for oil connection threaded fastener |
| CN207584304U (en) * | 2017-08-16 | 2018-07-06 | 齐鲁交通信息有限公司 | Express-road vehicle running track identification equipment mounting bracket |
| CN108469326A (en) * | 2018-02-28 | 2018-08-31 | 北京电子工程总体研究所 | A kind of micro- wrench of a force system measuring device and system |
| CN209278759U (en) * | 2019-01-07 | 2019-08-20 | 中国工程物理研究院总体工程研究所 | Sensor pre-pressing structure |
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|---|---|---|---|---|
| US5452629A (en) * | 1993-04-27 | 1995-09-26 | Westfalia Becorit Industrietechnik Gmbh | Device for selectively tensioning and clamping studs mounted on a pressure vessel to permit nuts to be tightened or loosened |
| CN2597974Y (en) * | 2003-02-13 | 2004-01-07 | 李君实 | High-strength bolt torque coefficient tester |
| WO2009016030A1 (en) * | 2007-07-27 | 2009-02-05 | Piezocryst Advanced Sensorics Gmbh | Force sensor |
| CN101650243A (en) * | 2009-07-16 | 2010-02-17 | 大连理工大学 | Piezoelectric type device for measuring drilling force of deep hole |
| CN203471727U (en) * | 2013-05-17 | 2014-03-12 | 李鹏 | Novel hydraulic bolt tensioner |
| US20140373636A1 (en) * | 2013-06-19 | 2014-12-25 | Chun-Chu Yang | Synchronous pre-tensionable sensing screw with fiber bragg grating devices |
| CN104406726A (en) * | 2014-10-31 | 2015-03-11 | 北京宇航系统工程研究所 | Calibration apparatus for relation between pretightening force and pretightening moment, and calibration method thereof |
| CN106041503A (en) * | 2015-04-09 | 2016-10-26 | 斯凯孚公司 | Tensioning device for pre-stressing assembly with threaded rod |
| CN105598913A (en) * | 2016-03-28 | 2016-05-25 | 重庆超力高科技股份有限公司 | Stud release type gun head |
| CN207584304U (en) * | 2017-08-16 | 2018-07-06 | 齐鲁交通信息有限公司 | Express-road vehicle running track identification equipment mounting bracket |
| CN108181037A (en) * | 2017-11-20 | 2018-06-19 | 上海宏予测试仪器有限公司 | A kind of pretightening force measuring apparatus for oil connection threaded fastener |
| CN108469326A (en) * | 2018-02-28 | 2018-08-31 | 北京电子工程总体研究所 | A kind of micro- wrench of a force system measuring device and system |
| CN209278759U (en) * | 2019-01-07 | 2019-08-20 | 中国工程物理研究院总体工程研究所 | Sensor pre-pressing structure |
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