CN102116690B - Pressing device of pressure sensor - Google Patents
Pressing device of pressure sensor Download PDFInfo
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- CN102116690B CN102116690B CN 200910217566 CN200910217566A CN102116690B CN 102116690 B CN102116690 B CN 102116690B CN 200910217566 CN200910217566 CN 200910217566 CN 200910217566 A CN200910217566 A CN 200910217566A CN 102116690 B CN102116690 B CN 102116690B
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- bearing
- exerting
- leading screw
- gear train
- screw
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Abstract
The invention discloses a pressing device of a pressure sensor. The pressing device disclosed by the invention comprises a transmission mechanism for receiving external pressure and a plane bearing, wherein the plane bearing is installed at an end part of the transmission device; the transmission device is connected with a bearing cover of the plane bearing and drives the bearing cover to rotate; a bearing seat of the plane bearing is installed on a base of the pressure sensor; and an induction sheet is arranged on the base of the sensor and can be deformed under the action of the external pressure, thus the service life of the pressing device of the pressure sensor can be prolonged.
Description
Technical field
The present invention relates to mechanical field, in particular to a kind of device for exerting of pressure transducer.
Background technology
In pressure sensor device, make its mechanical mechanism that produces required deflection thereby need a kind ofly will be passed to the pressure sensitive sheet, i.e. sensing chip pressure exerting arrangement (or device for exerting of pressure transducer) by measuring pressure.Pressure exerting arrangement in the past has: top type, ball-type etc., but all have the mechanical wear problem in varying degrees, cause life-span reduction, reliability deficiency.
Device for mechanical wearing and tearing in the correlation technique pressure transducer being exerted pressure are bigger, and then cause relatively shorter problem in serviceable life, do not propose effective solution at present as yet.
Summary of the invention
Bigger to the wearing and tearing of device for mechanical that pressure transducer is exerted pressure, and then cause relatively shorter problem and propose the present invention in serviceable life, for this reason, fundamental purpose of the present invention is to provide a kind of device for exerting of pressure transducer, to address the above problem.
To achieve these goals, according to an aspect of the present invention, a kind of device for exerting of pressure transducer is provided.
Device for exerting according to pressure transducer of the present invention comprises: gear train, accept external pressure; Surface bearing; Be installed in the end of gear train; The bearing cap of surface bearing is connected with gear train and can under the drive of gear train, rotates; The bearing seat of surface bearing is installed on the sensor base of pressure transducer, and sensor base is provided with sensing chip, and the sensing chip externally effect of pressure produces deformation down.
Preferably, device for exerting also comprises: drive unit; Gear train comprises leading screw, screw; Wherein, leading screw is driven by drive unit, and screw is connected with leading screw, and screw receives external pressure and external pressure is passed to leading screw.
Preferably, drive unit is a motor.
Preferably, device for exerting also comprises: installing plate is connected respectively with fixedly leading screw and bearing with leading screw and bearing.
Preferably, the spindle nose of leading screw penetrates the bearing cap of surface bearing with clearance fit.
Preferably, the assemblage gap that has 0.1mm between the spindle nose of leading screw and the bearing cap.
Preferably, the assembling right alignment that has Φ 0.2mm between sensor base and the leading screw spindle nose.
Preferably, the bearing cap of surface bearing cooperates installation with the planar axes bearing.
Preferably, the bearing seat of surface bearing is installed in the seat hole of sensor base with the transition fit mode.
According to the device for exerting of pressure transducer of the present invention, through following structure: gear train, accept external pressure; Surface bearing; Be installed in the end of gear train; The bearing cap of surface bearing is connected with gear train and can under the drive of gear train, rotates, and the bearing seat of surface bearing is installed on the sensor base of pressure transducer, and sensor base is provided with sensing chip; The sensing chip externally effect of pressure produces deformation down; It is bigger to have solved the device for mechanical wearing and tearing that pressure transducer is exerted pressure, and then causes relatively shorter problem in serviceable life, and then has reached the effect in device for exerting serviceable life of improving pressure transducer.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the synoptic diagram according to the device for exerting of the pressure transducer of the embodiment of the invention;
Fig. 2 is the sectional view along the device for exerting of the pressure transducer of A-A intercepting among Fig. 1 according to the embodiment of the invention;
Fig. 3 is the lateral plan according to the device for exerting of the pressure transducer of the embodiment of the invention;
Fig. 4 is the device for exerting upward view according to the pressure transducer of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
According to embodiments of the invention, a kind of device for exerting of pressure transducer is provided.
Fig. 1 is the synoptic diagram according to the device for exerting of the pressure transducer of the embodiment of the invention; Fig. 2 is the sectional view along the device for exerting of the pressure transducer of A-A intercepting among Fig. 1 according to the embodiment of the invention; Fig. 3 is the lateral plan according to the device for exerting of the pressure transducer of the embodiment of the invention; Fig. 4 is the device for exerting upward view according to the pressure transducer of the embodiment of the invention.
To shown in Figure 4, comprise gear train (for example leading screw) 1 and surface bearing 2 like Fig. 1 according to the device for exerting of the pressure transducer of the embodiment of the invention.
Gear train is accepted external pressure; Surface bearing 2; Be installed in the end of gear train; The bearing cap of surface bearing 2 is connected with gear train and can under the drive of gear train, rotates; The bearing seat of surface bearing 2 is installed on the sensor base 3 of pressure transducer, and sensor base 3 is provided with sensing chip, and the sensing chip externally effect of pressure produces deformation down.
Preferably, device for exerting also comprises: the drive unit (not shown); Gear train comprises leading screw 1, screw (not shown); Wherein, leading screw 1 is driven by drive unit, and screw is connected with leading screw 1, and screw receives external pressure and external pressure is passed to leading screw 1.
Preferably, drive unit is a motor.
Preferably, device for exerting also comprises: installing plate 5 is connected respectively with fixedly leading screw 1 and bearing with leading screw 1 and bearing.
Preferably, the spindle nose of leading screw 1 penetrates the bearing cap of surface bearing 2 with clearance fit.
Preferably, the assemblage gap that has 0.1mm between the spindle nose of leading screw 1 and the bearing cap.
Preferably, the assembling right alignment that has Φ 0.2mm between sensor base 3 and leading screw 1 spindle nose.
Preferably, the bearing cap of surface bearing 2 cooperates installation with 2 of surface bearings.
Preferably, the bearing seat of surface bearing 2 is installed in the seat hole of sensor base 3 with the transition fit mode.
Like Fig. 1 to shown in Figure 3, leading screw 1 with pressure by shown in direction pass to surface bearing 2, pass to pressure transducer by the surface bearing that can bear axle pressure 2 again, make the deflection of sensing chip generations needs, thereby export needed control electric signal.
Alternatively, above-mentioned structure can be installed in the following manner among the present invention: be installed in surface bearing 2 bases in the sensor holder hole by the transition fit mode earlier.Cooperate installation to bearing cap with base again.Penetrate the bearing cap endoporus to leading screw 1 spindle nose with clearance fit, and keep the assemblage gap of 0.1mm between the spindle nose shaft shoulder and the bearing cap upper surface.
In the present invention, when leading screw 1 produces axial force, its shaft shoulder and bearing upper cover are compressed through friction force drive the bearing cap rotation, give sensor with axial force transmission simultaneously.
The assembling right alignment that preferably, preferably can keep Φ 0.2mm between sensor bearing hole seat and leading screw 1 spindle nose.
The utility model changes the sliding friction pair in the mechanism in the past into rolling friction pair, thereby has eliminated the mechanical wear problem, has improved the reliability and the serviceable life of sensing device, and has reduced manufacturing and installation cost simultaneously.
From above description, can find out that the present invention can reduce mechanical wear, improve the reliability and the serviceable life of sensing device, and reduce simultaneously and make and installation cost.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the device for exerting of a pressure transducer is characterized in that, comprising:
Gear train is accepted external pressure;
Surface bearing; Be installed in the end of said gear train; The bearing cap of said surface bearing is connected with said gear train and can under the drive of said gear train, rotates; The bearing seat of said surface bearing is installed on the sensor base of pressure transducer, and said sensor base is provided with sensing chip, and said sensing chip can produce deformation under the effect of said external pressure.
2. device for exerting according to claim 1 is characterized in that, said device for exerting also comprises:
Drive unit;
Said gear train comprises leading screw, screw;
Wherein, said leading screw is driven by said drive unit, and said screw is connected with said leading screw, and said screw receives said external pressure and said external pressure is passed to said leading screw.
3. device for exerting according to claim 2 is characterized in that, said drive unit is a motor.
4. device for exerting according to claim 2 is characterized in that, said device for exerting also comprises:
Installing plate is connected respectively with fixing said leading screw and said bearing with said leading screw and said bearing.
5. device for exerting according to claim 2 is characterized in that, the spindle nose of said leading screw penetrates the bearing cap of said surface bearing with clearance fit.
6. according to each described device for exerting in the claim 2 to 5, it is characterized in that having the assemblage gap of 0.1mm between the spindle nose of said leading screw and the said bearing cap.
7. according to each described device for exerting in the claim 2 to 5, it is characterized in that having the assembling right alignment of Φ 0.2mm between said sensor base and the said leading screw spindle nose.
8. device for exerting according to claim 1 is characterized in that, the bearing cap of said surface bearing cooperates installation with said planar axes bearing.
9. device for exerting according to claim 1 is characterized in that, the bearing seat of said surface bearing is installed in the seat hole of said sensor base with the transition fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910217566 CN102116690B (en) | 2009-12-31 | 2009-12-31 | Pressing device of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910217566 CN102116690B (en) | 2009-12-31 | 2009-12-31 | Pressing device of pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102116690A CN102116690A (en) | 2011-07-06 |
| CN102116690B true CN102116690B (en) | 2012-10-03 |
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ID=44215557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910217566 Active CN102116690B (en) | 2009-12-31 | 2009-12-31 | Pressing device of pressure sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102116690B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182113B (en) * | 2011-12-30 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | Syringe pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU647558A1 (en) * | 1977-09-14 | 1979-02-15 | Специальное Конструкторско-Технологическое Бюро "Оргтехника" | Compression spring testing device |
| WO1996038645A1 (en) * | 1995-06-01 | 1996-12-05 | Robert Bosch Gmbh | Device for recognizing the closure force of an electric displacement motor |
| CN2755767Y (en) * | 2004-12-25 | 2006-02-01 | 白伟义 | Checker of gas relay |
| CN200975929Y (en) * | 2006-10-16 | 2007-11-14 | 比亚迪股份有限公司 | Device for testing vehicle door open, close force and open, close displacement |
| CN101470036A (en) * | 2007-12-28 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Block pressure detection and processing equipment and method for injection pump |
| CN101587003A (en) * | 2009-06-24 | 2009-11-25 | 哈尔滨工业大学 | Caliabration device of pressure sensor |
-
2009
- 2009-12-31 CN CN 200910217566 patent/CN102116690B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU647558A1 (en) * | 1977-09-14 | 1979-02-15 | Специальное Конструкторско-Технологическое Бюро "Оргтехника" | Compression spring testing device |
| WO1996038645A1 (en) * | 1995-06-01 | 1996-12-05 | Robert Bosch Gmbh | Device for recognizing the closure force of an electric displacement motor |
| CN2755767Y (en) * | 2004-12-25 | 2006-02-01 | 白伟义 | Checker of gas relay |
| CN200975929Y (en) * | 2006-10-16 | 2007-11-14 | 比亚迪股份有限公司 | Device for testing vehicle door open, close force and open, close displacement |
| CN101470036A (en) * | 2007-12-28 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Block pressure detection and processing equipment and method for injection pump |
| CN101587003A (en) * | 2009-06-24 | 2009-11-25 | 哈尔滨工业大学 | Caliabration device of pressure sensor |
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| Publication number | Publication date |
|---|---|
| CN102116690A (en) | 2011-07-06 |
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