CN209085642U - A kind of pre-pressing structure of sensor - Google Patents
A kind of pre-pressing structure of sensor Download PDFInfo
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- CN209085642U CN209085642U CN201920020005.9U CN201920020005U CN209085642U CN 209085642 U CN209085642 U CN 209085642U CN 201920020005 U CN201920020005 U CN 201920020005U CN 209085642 U CN209085642 U CN 209085642U
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- improving quality
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Abstract
The utility model discloses a kind of pre-pressing structures of sensor, it is related to sensor manufacture and use field, including block of improving quality, lower mass block, cover board and screw rod, screw rod sequentially passes through block of improving quality, sensor and lower mass block, block, lower mass block and sensor holding improve quality coaxially, the top and bottom of screw rod respectively with improve quality block and lower mass block is fixedly connected, the both ends of sensor squeeze with the lower end for block of improving quality and the upper end of lower mass block contact respectively；By screw rod with improve quality block and lower mass block is fixedly connected；It is that sensor applies pretightning force by block of improving quality, lower mass block, structure is simple, and it is easy for installation, it not only ensure that the normal use of sensor, also expand the scope of application of sensor, even the test that column rod piece passes through sensor also can be used normally.
Description
Technical field
The utility model relates to sensor manufacture and use field more particularly to a kind of pre-pressing structures of sensor.
Background technique
In some kinds of sensor, in piezoelectric force transducer, due to sensing element, when sensor does not have
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, still
It is not available if for there is column rod piece such as the case where bolt etc. needs guiding through sensor.
Utility model content
The purpose of this utility model is that the pre-pressing structure for designing sensor to solve the above-mentioned problems.
The utility model achieves the above object through the following technical schemes:
A kind of pre-pressing structure of sensor, including block of improving quality, lower mass block and hollow screw rod, improve quality block and lower matter
The center of gauge block is provided with through-hole, and the lower end of screw rod sequentially passes through the through-hole of block of improving quality, sensor and lower mass block, upper matter
Gauge block, lower mass block and sensor keep coaxial, the top and bottom of screw rod respectively with the block and lower mass block is fixed connects of improving quality
It connects, the both ends of sensor squeeze with the lower end for block of improving quality and the upper end of lower mass block contact respectively.
Further, the through-hole of lower mass block is threaded hole, and the lower end of screw rod is by the threaded hole on lower mass block under
Mass block is fixedly connected, and the upper end of screw rod is threadedly coupled with fastening nut, and fastening nut is contacted with block extruding of improving quality.
Further, improve quality block upper end setting it is fluted, the through-hole for block of improving quality is connected to the groove for block of improving quality,
Fastening nut is mounted in the groove for block of improving quality.
Further, the both ends of screw rod are threadedly coupled with two fastening nuts respectively, two fastening nuts respectively with upper matter
Gauge block and lower mass block squeeze contact.
Further, it improves quality the upper end of block and the lower end of lower mass block is provided with groove, improve quality block and lower quality
The through-hole of block is connected to two grooves respectively, and two fastening nuts are separately mounted in two grooves.
Further, the length of screw rod is less than block of improving quality to the maximum distance of lower mass block, and the length of screw rod is greater than upper
Minimum distance of the mass block to lower mass block.
Further, the pre-pressing structure of sensor further includes dismountable cover board, and cover plate central is provided with through-hole, cover board with
It improves quality block or lower mass block is fixedly connected far from one end of sensor by screw.
The utility model has the beneficial effects that:
It 1, is that sensor applies pretightning force by block of improving quality, lower mass block and hollow screw rod, structure is simple, installation side
Just, it not only ensure that the normal use of sensor, also expand the scope of application of sensor, even column rod piece passes through sensing
The test of device also can be used normally；
2, it by the use of cover board, can be chosen whether according to the size of measured piece using cover board, when the diameter of measured piece
Less than groove diameter when, need using cover board, but when the diameter of measured piece be greater than groove diameter when, can not use
Cover board, sensor can also be used normally.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1 in a kind of pre-pressing structure of sensor of the utility model；
Fig. 2 is the structural schematic diagram of screw rod in a kind of pre-pressing structure of sensor of the utility model；
Fig. 3 is the structural schematic diagram of embodiment 2 in a kind of pre-pressing structure of sensor of the utility model；
Fig. 4 is the use schematic diagram of embodiment 2 in a kind of pre-pressing structure of sensor of the utility model；
Wherein corresponding appended drawing reference are as follows:
1- improves quality block, 2- sensor, mass block under 3-, 4- screw rod, 5- fastening nut, 6- cover board, 7- screw, on 8-
Connector, connector under 9-, 10- connection bolt, 11- attaching nut.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Embodiment 1, as shown in Figure 1 and Figure 2,
A kind of pre-pressing structure of sensor, including block 1 of improving quality, lower mass block 3, hollow screw rod 4 and dismountable lid
Plate 6, the through-hole that is provided centrally with for block 1 of improving quality, lower mass block 3 are provided centrally with threaded hole, block 1 of improving quality, lower mass block 3
And sensor 2 is kept coaxially, the lower end of screw rod 4 sequentially passes through block 1 of improving quality, sensor 2 and lower mass block 3, under screw rod 4
End is fixedly connected by the threaded hole on lower mass block 3 with lower mass block 3, and block 1 of improving quality, lower mass block 3 and sensor 2 are kept
Coaxially, improve quality block 1 upper end setting it is fluted, the through-hole for block 1 of improving quality is connected to the groove for block 1 of improving quality, fastening nut 5
Be mounted in the groove for block 1 of improving quality, fastening nut 5 with improve quality block 1 extruding contact, the both ends of sensor 2 respectively with upper matter
The lower end of gauge block 1 and the upper end of lower mass block 3 squeeze contact, and the length of screw rod 4 is less than block 1 of improving quality and arrives lower mass block 3 most
At a distance, the length of screw rod 4 is greater than the minimum distance that block 1 of improving quality arrives lower mass block 3, and cover board 6 is provided centrally with through-hole, covers
Plate 6 with improve quality the one end of block 1 or lower mass block 3 far from sensor 2 and be fixedly connected by screw 7.
Installation sensor 2: successively lower mass block 3, sensor 2, block 1 of improving quality are kept coaxially stacking from top to bottom；It will
Hollow screw rod 4 sequentially passes through the through-hole of block 1 of improving quality, sensor 2 and lower mass block 3, the lower end rotation of screw rod 4 from top to bottom
Enter lower mass block 3 and threaded through-hole is set, the upper end of screw rod 4 is fixedly connected with block 1 of improving quality by fastening nut 5, is fastened
Washer is provided between nut 5 and block 1 of improving quality, protection improves quality block 1 not by the scratch of fastening nut 5, and dispersion fastening nut 5 is right
It improves quality the pressure of block 1；When the diameter of measured piece is greater than the diameter of groove, then installation cover board 6 is not needed, it is straight when measured piece
When diameter is less than the diameter of groove, cover board 6 is fixed on by screw 7 by 1 upper end of block of improving quality.
The tested connector of column rod piece is installed: from top to bottom successively by lower connector 9,2 and of mounted sensor
Upper connector 8 keeps coaxially stacking；The one end for connecting bolt 10 is passed through into lower connector 9, mounted sensor 2 and upper connection
Part 8, and it is fixed with attaching nut 11；The power between upper connector 8 and lower connector 9 can be tested.
Embodiment 2, as shown in Figure 2, Figure 3, Figure 4,
A kind of pre-pressing structure of sensor, including block 1 of improving quality, lower mass block 3, hollow screw rod 4 and dismountable lid
The center of plate 6, improve quality block 1 and lower mass block 3 is provided with through-hole, and block 1 of improving quality, lower mass block 3 and sensor 2 keep same
Axis, the lower end of screw rod 4 sequentially pass through the through-hole of block 1 of improving quality, sensor 2 and lower mass block 3, and the both ends of screw rod 4 are respectively with two
A fastening nut 5 is threadedly coupled, and the lower end of the upper end for block 1 of improving quality and lower mass block 3 is provided with groove, improve quality 1 piece and
The through-hole of lower mass block 3 is connected to two grooves respectively, and two fastening nuts 5 are separately mounted in two grooves, two fastenings
Nut 5 respectively with improve quality block 1 and the extruding of lower mass block 3 contacts, the both ends of sensor 2 lower end with block 1 of improving quality respectively
Contact is squeezed with the upper end of lower mass block 3, the length of screw rod 4 is less than the maximum distance that block 1 of improving quality arrives lower mass block 3, screw rod 4
Length be greater than the minimum distance that block 1 of improving quality arrives lower mass block 3, cover board 6 is provided centrally with through-hole, cover board 6 and block 1 of improving quality
Or the one end of lower mass block 3 far from sensor 2 is fixedly connected by screw 7.
Installation sensor 2: successively lower mass block 3, sensor 2, block 1 of improving quality are kept coaxially stacking from top to bottom；It will
Hollow screw rod 4 sequentially passes through the through-hole of block 1 of improving quality, sensor 2 and lower mass block 3 from top to bottom, the upper end of screw rod 4 and
Lower end by fastening nut 5 respectively with improve quality block 1 and lower mass block 3 is fixedly connected, fastening nut 5 and improve quality block 1 and under
It is provided with washer between mass block 3, block 1 is improved quality in protection and lower mass block 3 is not abraded by fastening nut 5, dispersion fastening spiral shell
The pressure of female 5 pairs of improve quality blocks 1 and lower mass block 3；It connects when the diameter of measured piece is greater than the diameter of groove, does not then need to install
Cover board 6, when the diameter of measured piece be less than groove diameter when, by 7 cover board 6 of screw with improve quality block 1 or lower mass block 3 it is separate
One end of sensor 2 is fixed to be connected.
The tested connector of column rod piece is installed: from top to bottom successively by lower connector 9,2 and of mounted sensor
Upper connector 8 keeps coaxially stacking；The one end for connecting bolt 10 is passed through into lower connector 9, mounted sensor 2 and upper connection
Part 8, and it is fixed with attaching nut 11；The power between upper connector 8 and lower connector 9 can be tested.
It is that sensor 2 applies pretightning force by block 1 of improving quality, lower mass block 3 and hollow screw rod 4, structure is simple, installation
It is convenient, it not only ensure that the normal use of sensor 2, also expand the scope of application of sensor 2, even column rod piece passes through
The test of sensor 2 also can be used normally；By the use of cover board 6, can be chosen whether according to the size of measured piece using
Cover board 6 is needed when the diameter of measured piece is less than the diameter of groove using cover board 6, but when the diameter of measured piece is greater than groove
Diameter when, cover board 6 can not used, sensor 6 can also use normally.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (7)
1. a kind of pre-pressing structure of sensor, it is characterised in that: including block of improving quality, lower mass block and hollow screw rod, upper matter
The center of gauge block and lower mass block is provided with through-hole, and the lower end of screw rod sequentially passes through block of improving quality, sensor and lower mass block
Through-hole, block of improving quality, lower mass block and sensor keep coaxial, the top and bottom of screw rod respectively with block and the lower matter of improving quality
Gauge block is fixedly connected, and the both ends of sensor squeeze with the lower end for block of improving quality and the upper end of lower mass block contact respectively.
2. a kind of pre-pressing structure of sensor according to claim 1, it is characterised in that: the through-hole of lower mass block is screw thread
The lower end in hole, screw rod is fixedly connected by the threaded hole on lower mass block with lower mass block, the upper end of screw rod and fastening nut spiral shell
Line connection, fastening nut are contacted with block extruding of improving quality.
3. a kind of pre-pressing structure of sensor according to claim 2, it is characterised in that: the upper end for block of improving quality is provided with
Groove, the through-hole for block of improving quality are connected to the groove for block of improving quality, and fastening nut is mounted in the groove for block of improving quality.
4. a kind of pre-pressing structure of sensor according to claim 1, it is characterised in that: the both ends of screw rod respectively with two
Fastening nut be threadedly coupled, two fastening nuts respectively with improve quality block and lower mass block extruding contact.
5. a kind of pre-pressing structure of sensor according to claim 4, it is characterised in that: the upper end for block of improving quality and lower matter
The lower end of gauge block is provided with groove, and the through-hole of improve quality block and lower mass block is connected to two grooves respectively, two fastening spiral shells
Mother is separately mounted in two grooves.
6. a kind of pre-pressing structure of sensor according to claim 1, it is characterised in that: the length of screw rod, which is less than, improves quality
Block is to the maximum distance of lower mass block, and the length of screw rod is greater than minimum distance of the block to lower mass block of improving quality.
7. a kind of pre-pressing structure of sensor according to claim 1, it is characterised in that: the pre-pressing structure of sensor also wraps
Dismountable cover board is included, cover plate central is provided with through-hole, and cover board and the one end of block or lower mass block far from sensor of improving quality are logical
Screw is crossed to be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020005.9U CN209085642U (en) | 2019-01-07 | 2019-01-07 | A kind of pre-pressing structure of sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020005.9U CN209085642U (en) | 2019-01-07 | 2019-01-07 | A kind of pre-pressing structure of sensor |
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| CN209085642U true CN209085642U (en) | 2019-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489702A (en) * | 2019-01-07 | 2019-03-19 | 中国工程物理研究院总体工程研究所 | A kind of pre-pressing structure and assemble method of sensor |
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2019
- 2019-01-07 CN CN201920020005.9U patent/CN209085642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489702A (en) * | 2019-01-07 | 2019-03-19 | 中国工程物理研究院总体工程研究所 | A kind of pre-pressing structure and assemble method of sensor |
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