CN1530646A - Apparatus for fixing measuring sensor - Google Patents
Apparatus for fixing measuring sensor Download PDFInfo
- Publication number
- CN1530646A CN1530646A CNA2004100067563A CN200410006756A CN1530646A CN 1530646 A CN1530646 A CN 1530646A CN A2004100067563 A CNA2004100067563 A CN A2004100067563A CN 200410006756 A CN200410006756 A CN 200410006756A CN 1530646 A CN1530646 A CN 1530646A
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- China
- Prior art keywords
- housing
- shoulder
- ring
- radial flange
- fixture
- Prior art date
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- 238000009434 installation Methods 0.000 claims description 57
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 230000010485 coping Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 238000003825 pressing Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 210000000234 capsid Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4078—Means for sealing the sensor element in a housing
Abstract
Two fixing portions 201, 202 cooperated each other are provided to friction-connectingly fasten axial-directionally a housing 12 to a pipe wall 111 having an introducing opening 15 for the measuring sensor 10 in a pipe section 11 for guiding measuring gas. The one side fixing portion 201 is arranged to cope with the housing 12, the other side fixing portion 202 is arranged to cope with the pipe section 11, the both fixing portions have clamp portions coping each other as a pair, one of the paired clamp portions has a wedge-shaped outline, and the wedge-shaped outline is directed to generate axial-directional component of force directed from the housing 12 to the pipe section 11, by coatingly fitting shape-connectingly the clamp portions of the paired clamp portions each other.
Description
Technical field
The present invention relates to be used for fixing the device of survey sensor on the area under control section that imports tested gas of the physical characteristics of definite measurement gas, especially an engine exhaust gas.
Background technology
On known this class stationary installation (DE 43 18 107 A1), it is that an installation with internal thread is taken over that the fixture of area under control section is given in configuration, this adapter from external concentric surround on the tube wall that is welded on the area under control section of entrance hole of survey sensor.It is a hollow bolt with external thread and outer-hexagonal that is enclosed within on the housing that the fixture of housing is given in configuration, its front end is bearing on the cramping flange that is configured on the housing, and by the internal thread of screw in to install taking over this flange is pressed on the mating surface on the outside surface that is configured in the area under control section.In installment state, the measurement side end of the sensing element that survey sensor with the protected enclosure passes the inside that entrance hole in the tube wall reaches the area under control section.
Disclose a kind of device of survey sensor on the engine exhaust gas pipe that is used for fixing the oxygen content in the engine exhaust gas of determining on the engine exhaust gas pipe by DE 197 14 203 C2, on the housing of this survey sensor, processed an external thread and spanner hexagon and this housing is screwed in the internal thread that an installation of surrounding entrance hole in the section of area under control with one heart takes over.
Summary of the invention
Stationary installation according to the present invention has its advantage, promptly give can making holder connected to one another, as to have wedge profile or realize the Fast Installation and the dismounting of survey sensor by the be fixedly clamped spring part of fixture of the pressure shoulder that constitutes power transmission chain ground clamp fixer by rotating or moving of fixture by configuration in couples, it can provide than the set-up time of the time-consuming screw-in much less of screw thread and or provide simultaneously and prevent owing to vibrate the reliability that is not intended to get loose that causes.Survey sensor itself can be installed on the position that is difficult to enter, can not screw.This advantage especially be fit to be used the situation as the survey sensor of the Lambda probe of motor vehicle exhaust gases pipeline or temp probe because be used for here installing, safeguard and the cost repaired worthwhile especially.In addition, different with screwed part, fixture no longer is made into the expensive parts of screwing, and can make by the method for moulding, and the manufacturing cost of stationary installation is reduced.To no longer include by the screw thread of exempting on the fixture: make stationary installation destruction or screw thread bite the danger that makes dismounting change difficulty by the unallowed too high torque that screws.
The favourable further configuration and the improvement of the stationary installation that provides in the claim 1 can be implemented in by the measure of in claim 2-10, describing, and the favourable further configuration and the improvement of the stationary installation that provides in the claim 11 can be implemented in by the measure of in claim 12-21, describing.
According to a favourable form of implementation of the present invention, a fixture is a clamping ring, it is overlapping an annular bearing surface that is configured on the housing with a radially inwardly outstanding ring shoulder, and another fixture is a correspondence ring that surrounds the entrance hole in the section of area under control.Being arranged on holder on clamping ring and the corresponding ring is meshed each other according to the mode of bayonet fittings and produces thus axially to go up survey sensor is fastened on axial pressing force on the tube shell.
According to a modification form of implementation of the present invention, fixture is made of housing itself and another fixture is made of a sleeve pipe with the entrance hole (15) that surrounds the area under control section.Configuration is made of for the holder of housing oblique shoulder section two radial arrangement on housing, that outwards descend, and the configuration holder of giving sleeve pipe is made of two legs of the plate that can guide in the xsect of sleeve pipe with being translated radially, wherein leg can be directed in sleeve pipe in this wise, and promptly each leg can be pulled on the oblique shoulder section.Here the Fast Installation that is inserted into the survey sensor in the sleeve pipe can realize like this, the longitudinal axis that is plate and survey sensor is vertically passed, in the case, with its leg slippage to the oblique shoulder section and with a axial force component housing is loaded thus towards tube wall.
According to an advantageous forms of implementation of the present invention, the fixture of housing is given in configuration, and to be unitary construction give the fixture of area under control section in the radial flange on the housing and configuration is that an installation that is fixed on one heart on the section of area under control with entrance hole is taken over, and insertion survey sensor and survey sensor are bearing in this installation adapter to ground with housing shaft in this installations is taken over.
According to a preferred implementing form of the present invention, pressure on radial flange shoulder is configured in it to deviate from and installs on upper side of taking over, and on taking over another is installed is pressed shoulder to be configured in one to be molded on the downside that deviates from radial flange that the annular protrusion on taking over is installed.Spring part is a ring, it make by spring steel and have that star draws with the integrant spring arm of ring spring, these spring arms form the clamping chuck that is bent and has a bending under the situation of acute angle on its free end at the ring axis with ring spring.Loop contacts is being configured on the pressure shoulder of radial flange, and the pressure that the clamping chuck is clamped on the annular protrusion is takeed on.In the case, preferably the pressure shoulder on the annular protrusion be tilt and the outside surface of taking over be installed relatively become the extension of ground, an obtuse angle.The axial pressing force of increase housing on mounting sleeve along with the put off amount of clamping chuck on the pressure shoulder of annular protrusion also increases thus.
According to a preferred implementing form of the present invention, ring is fixed, and is for example soldered or be crimped on the radial flange, makes spring part become the fixedly ingredient of survey sensor thus and needn't handle as independent part when mounted.
According to a modification form of implementation of the present invention, adapter is installed is so constructed, promptly the radial flange on the housing is sunk to and is installed in the adapter.The pressure shoulder of install taking over by install that a recurve towards radial flange in the nozzle inner wall constitutes and housing on the pressure shoulder be configured in it on the upper side of the radial flange of recurve.Spring part is a collar, and it is strutted and be moved into diametrically between grip flange and the recurve after being placed on the radial flange.Preferably the such wedge shape of recurve ground tilts, and promptly increase recurve that struts along with collar and the axial holding force between the radial flange increase, and housing is pressed on regularly install to take over.
According to an advantageous forms of implementation of the present invention, be fixed on the section of area under control, be configured to a pressure shoulder as the fixture that is welded on the section of area under control, the back-pressure shoulder that is arranged on the housing at the situation next one that stationary installation is installed contacts airtightly on this pressure shoulder.In the case, press＞0 ° and≤90 ° inclined at acute angles of the best housing axis with the relative measurement sensor of shoulder and back-pressure shoulder, so as when sealing the compensation machining tolerance.In the case, shoulder can constitute flat face or at least one shoulder can constitute convex.
Description of drawings
To describe the present invention by means of expression embodiment in the accompanying drawings in the following description.Accompanying drawing is:
Fig. 1: be fixed on the partial longitudinal section of a survey sensor on the air shooter section by a stationary installation,
Fig. 2: the skeleton view of the last fixed part of stationary installation among Fig. 1,
Fig. 3: the skeleton view of the following fixed part of stationary installation among Fig. 1,
Fig. 4: the fixed part of a modification of stationary installation is along the sectional view of Fig. 1 center line IV-IV,
Fig. 5: according to second embodiment, be fixed on the partial longitudinal section of a survey sensor on the air shooter section by a stationary installation,
Fig. 6: stationary installation skeleton view among Fig. 5,
Fig. 7: stationary installation cross-sectional view among Fig. 6,
Fig. 8: according to the 3rd embodiment, be fixed on the partial longitudinal section of a survey sensor on the air shooter section by a stationary installation,
Fig. 9: among Fig. 8 stationary installation, be expressed as the vertical view of sheet material towards the spring part of part,
Figure 10: according to the 4th embodiment, be fixed on the partial longitudinal section of a survey sensor on the air shooter section by a stationary installation,
Figure 11: the vertical view of the spring part of stationary installation among Fig. 9,
Figure 12: according to the 5th embodiment, be fixed on the partial longitudinal section of a survey sensor on the air shooter section by a stationary installation,
Figure 13: the formation that the vertical view of the spring part of stationary installation among Figure 12, this spring part have an additional representation is made the radial flange on the survey sensor housing.
Embodiment
Express a survey sensor 10 that is used for determining the engine exhaust gas oxygen content of motor vehicle in Fig. 1, also be called the Lambda probe for short, it is inserted in the area under control section 11 of a waste gas duct of internal combustion engine.This survey sensor 10 of representing partly with fragment has a housing 12, holds a sensing element 13 in this housing, and the latter stretches out a gas side end from housing 12, and the protective cover 14 that this end itself is fixed on the housing 12 is covered with.Be provided with an entrance hole 15 that is used for survey sensor 10 in the tube wall 111 of area under control section 11, housing 12 will be inserted in this hole in this wise, and the gas side end that promptly has the sensing element 13 of protective cover 14 extend in the air-flow of carrying in area under control section 11.The complete structure of a survey sensor 10 for example is described among DE 197 14 203 C2.
The survey sensor 10 that is inserted in the area under control section 11 will axially be fastened on the area under control section 11 by a stationary installation 20, and entrance hole 15 is sealed airtightly.Be configured to two-part stationary installation 20 and form by two fixtures 201 and 202 of mutually pegging graft, wherein upper fixing element 201 be connected on the housing 12 and down fixture 202 be inserted in the entrance hole 15 and seal and reach regularly, for example be connected by airtight welding with tube wall 111.On fixed part 201 and 202, be provided with each other in corresponding over the ground folder, wherein has wedge profile at folder of each folder centering, it is directed in this wise, i.e. the passing of the form fit by the right folder of folder forms one each other by the axial force component of housing 12 towards area under control section 11.
In the embodiment of Fig. 1-3, upper fixing element 201 is clamping rings 21 of a circle, this clamping ring has ring shoulder 22 an and a plurality of integral body, radially inwardly outstanding in the top, in the embodiment of Fig. 2, be total up to 6, the intermediate plate 23 that is staggeredly arranged with the same circumference angle each other, they are radially protruding on the front end that deviates from ring shoulder 22 of clamping ring 21.Intermediate plate 23 constitutes the folder that is arranged on the upper fixing element 201.When clamping ring 21 was passed on the housing 12 from the end that deviates from gas side, ring shoulder 22 can be placed on one and be configured on annular bearing surface on the housing 12, radial directed.At the following fixture 202 shown in Fig. 3 are correspondence rings 24 of a circle, integrally axially mold the neck 25 of a drawing thereon.As shown in Figure 2, corresponding its neck 25 of ring 24 usefulness is inserted in the entrance hole 15 and weld seam 26 and tube wall 111 by annular are permanently connected.In order to realize being located at the folder that has wedge profile on the corresponding ring 24, in the ring wall of correspondence ring 24, cut out the notch that is open upwards 27 of its number and clamping ring 21 upper clips 23 respective number, they stagger with identical angle of circumference, the intermediate plate 23 on clamping ring 21.In the bottom of each notch 27, notch is connecting the slot 28 that extends with the groove width that narrows down gradually in a circumferential direction.Narrowing down gradually of groove width reaches like this: deviate from the position of packing into area under control section 11 on slot edge 281 on axial wedge shape ground relatively area under control section 111 rise, promptly the xsect of corresponding relatively ring 24 becomes an acute angle ground extension.Groove width is extremely constant on the rearward end of slot 28, and has the length of constant groove width roughly corresponding to the width from circumferencial direction intermediate plate 23 from circumferencial direction slot end.In order to guarantee that intermediate plate 23 is imported in the slots 28, from the width of circumferencial direction notch 27 roughly greater than width from circumferencial direction intermediate plate 23.The internal diameter of corresponding ring 24 is selected as to be slightly less than the external diameter of clamping ring 21, so that the latter can axially be inserted in the corresponding ring 24 when intermediate plate 23 axially aligns with notch 27.
When survey sensor 10 was installed, it was inserted in the correspondence ring 24 that is fixed on the area under control section 11 with its protective cover side end.Then clamping ring 21 is enclosed within on the housing 12 and is inserted in the corresponding ring 24 middlely under 23 pairs of notches of intermediate plate, 27 fixed situations of aiming at, wherein ring is takeed on 22 and is contacted with 16 surface of contact formation on the housing 12.By clamping ring 21 is rotated a relatively little pendulum angle as 15 °, intermediate plate 23 is screwed in the slot 28, at this moment the slot edge 281 of wedge shape ground extension more and more is pressed on the surface of contact 16 ring shoulder 22 downwards.Produced an axial force component thus, it makes back-pressure of housing 12 usefulness shoulder 17 be pressed in one and presses on the shoulder 29, and it is configured on the clamping ring 21 in the zone of neck 25 transition.Played on the one hand the effect of a bayonet fittings thus by the folder of intermediate plate 23, the fixture 201 that is made of slot 28 on the other hand and 202, it makes the housing 12 of survey sensor 10 act on the force component of housing 12 on axially by one to constitute power transmission chain ground and axially be clamped on the tube wall 111.Be placed on airtightly on the corresponding ring 24 by the entrance hole 15 interior housings 12 that reach that corresponding ring 24 is connected in the area under control section 11 airtightly, will always survey sensor 10 axially fastened on area under control section 11 airtightly by stationary installation 20.For fear of the blow-by between pressure shoulder 29 that forms owing to machining tolerance and the back-pressure shoulder 17, these two annular shoulders 29,17 angle extensions with relative housing axis, this angle is greater than 0 ° and be less than or equal to 90 °, obtain thus a kind of mode of boring seat and housing 12 with corresponding encircle between 24 calmly in.In the embodiment in figure 1, shoulder 29,17 is configured to convex.But shoulder is configured to flat and another shoulder and is configured to protruding and two shoulders 29,17 to constitute flat also be possible.
For the rotation of clamping ring 21, in clamping ring 21, be provided with boring 30, can insert the erecting tools of a pin shape therein.Boring 30 is opened in the ring shoulder 22 in the embodiment shown in Fig. 1-3, but they also can be opened in the ring wall of clamping ring 21.
On the clamping ring 21 ' that in Fig. 4, represent, modification, on a wall section of clamping ring 21 ', be shaped to a spanner hexagon 31 in order to rotate clamping ring 21 ' with xsect.All the other configurations of this clamping ring 21 ' are corresponding in conjunction with the described clamping ring 21 of Fig. 2.
In the embodiment shown in Fig. 5-7, its structure is all identical with the survey sensor 10 shown in Fig. 1 the variation of survey sensor 10 on housing 12, and identical thus parts are represented with identical label.Replace surface of contact 16, housing 12 is provided with oblique shoulder 18 annular, that outwards descend, it for following stationary installation 20 meaningfully, survey sensor 10 can be fastened on the area under control section 11 by means of this stationary installation with axially constituting the power transmission chain.In the case, housing 12 upper fixing elements 201 as stationary installation 20 own use.The following fixture 202 of stationary installation 20 is sleeve pipes 33 that are fixed on the tube wall 111, and it surrounds the entrance hole 15 of survey sensor 10 airtightly.Sleeve pipe 33 is supporting the ring plate 34 of an integral body, and the pressure shoulder 29 of an inclination is radially inwardly stretched and be configured with to this ring plate in the lower end of sleeve pipe 33, is used to receive that to be configured on the housing 12 also be the back-pressure shoulder 17 that tilts to extend.On sleeve pipe 33, be provided with an outstanding radially outwardly flange 35, the weld seam 26 that these flange 35 contacts reach on tube wall 111 by annular after the end of the sleeve pipe 33 that has ring plate 34 is inserted in the entrance hole 15 is permanently connected with tube wall, and entrance hole 15 edges one side is sealed airtightly.
As according to the described stationary installation 20 of Fig. 1-3, two fixtures 201 and 202 are disposed folder here.In the case, configuration gives upper fixing element 201, be that the folder with wedge profile of housing 12 is made of the oblique shoulder section 181 of two oblique shoulders 18 that oppose on diameter each other, and two legs 361 of the folder of sleeve pipe 33 by a horseshoe-shaped plate 36 that can lead are given in configuration with being translated radially in the xsect of sleeve pipe 33,362 constitute, and these two legs can be pushed to two tiltedly on each of shoulder sections 181 each other under the situation that spring struts.In order to improve the contact of leg 361,362 on oblique shoulder section 181,182, leg 361,362 is recessed on its wedge shape ground on the inboard of housing 12, and works as the profile that surrounds housing 12 after they are pulled on the oblique shoulder section 181,182 partly.For the guiding of plate 36, as especially seeing clearly in Fig. 7, sleeve pipe 33 has two grooves 37 that are arranged in circle sector shape on the diameter, and their axial width is greater than the leg thickness of plate 36.Among Fig. 7 with Fig. 6 in a same empty capsid 12 also expressing survey sensor 10, with the configuration of the leg 361,362 that shows the oblique shoulder 18 relative plates 36 that are configured on the housing 12.
In order to install and measure sensor 10, survey sensor 10 will be inserted in the sleeve pipe 33 that is fixed on the area under control section 11 with its housing 12, take on 17 up to the shoulder of the pressure on the ring plate 34 that is configured in sleeve pipe 33 29 with the back-pressure on being configured in housing 12 and lean on mutually each other.Two leg 361 of horseshoe-shaped plate 36 usefulness then, in the 362 sector shape grooves 37 that are inserted on the sleeve pipe 33, at this moment leg 361, much more more and more 362 be pulled to radially tiltedly the takeing on of oblique shoulder 18 that is configured on the housing 12 with reaching its back-pressure shoulder 217 formation power transmission chains of housing 12 usefulness on the section 181 is pressed on the shoulder 29, so that sealed airtightly all around by the hole 32 of 1 ring plate, 24 encirclements of sleeve pipe 33.Can be clear that the oblique shoulder section 181 of the oblique shoulder 18 that is configured on the housing 12 in Fig. 7, leg 361,362 is pulled on it.In order to unclamp stationary installation 16, plate 36 is extracted out must be from sleeve pipe 33.This need make leg 361,362 flexibly strut each other, must apply the pulling force of certain value on plate 36 for this reason.This pulling force is relatively high, and plate 36 is clamped on the housing 12 and as the vibration in the emerged in operation of travelling its is reached by vibration automatically with certain holding force and by mistake unclamps thus.
In the above-described embodiments, correspondence ring 24 of two stationary installations 20 (Fig. 1 and 3) and sleeve pipe 33 (Fig. 5-7) not necessarily will be inserted in the entrance hole 15 of area under control section 11.They also can be placed on the tube wall 111 of area under control section 11 in this wise, and promptly they will surround entrance hole 15 with one heart.They are welded on the tube wall 111 or otherwise and are fixed on airtightly on the tube wall 111 then.Then when clamping its back-pressure shoulder 17 of housing 12 usefulness be pressed in airtightly one be configured on the tube wall 111, with entrance hole 15 with one heart around pressure take on.
At Fig. 8,10, and all identical 12 changes of sensor on housing 12 of representing with partial longitudinal section figure with the survey sensor shown in Fig. 1 or 5, identical thus structure division is provided with identical label.Stationary installation 20 also comprises two fixtures 201 and 202 and spring parts 40, and this spring part cramping is on the pressure shoulder 41,42 that is configured on each fixture 201,202 and apply an axial clamping force that acts between fixture 201 and 202.It is the radial flanges 43 of integrally constructing with housing 12 that the upper fixing element 201 of housing 12 is given in configuration, and the fixture 202 that disposes to area under control section 11 is that an installation that is fixed on one heart on the section of area under control with entrance hole 15 takes over 44.Adapter 44 is installed also is provided with a pressure shoulder 29, back-pressure shoulder 17 of housing 12 usefulness is bearing on this pressure shoulder.Install to take over 44 be inserted in the entrance hole 15 and with the tube wall 111 of area under control section 11 by around weld seam 26 be connected.
In the embodiment of Fig. 8, configuration is configured in it for the pressure shoulder 41 on the radial flange 43 of upper fixing element 201 to deviate to install and take over 44 upper side, and configuration takes over pressure shoulder 42 on 44 for the installation of fixture 202 down to be configured in one and to be molded on the downside that deviates from radial flange 43 that the annular protrusion 45 of taking over 44 free ends is installed.In the case, the shoulder of the pressure on the downside of the annular protrusion 45 42 relative outside surfaces that adapter 44 is installed become ground, an obtuse angle to extend.In the embodiment according to the stationary installation 20 of Fig. 8 and 10, spring part 40 is made, is had the ring 46 of the spring arm 47 that star or radiation shape draw by spring steel.Be bent and on its free end, curve a clamping chuck 471 with ring 46 integrant spring arms 47 forming under the situation of acute angles with ring 46.Ring 46 contacts are reaching soldered on the shoulder of the pressure on the flange 43 42 or are being crimped on this pressure shoulder.In the embodiment of Fig. 8, ring 46 is gone up cover 19 by one and is pressed on the radial flange 43, and enclosure is on housing 12 and welded together with it on this.
According to the installation of the survey sensor of Fig. 8 the time, this survey sensor will be inserted into the installation that is welded on the area under control section 11 with the end of its protective cover side and take in 44, up to be configured in back-pressure shoulder 17 on the housing 12 touch press on the shoulder 29 till.Its clamping chuck 471 of spring part 47 usefulness is clamped on the annular protrusion 45, at this moment produce more and more big axial pressing force along with spring part 47 makes clamping chuck 471 reach pressing between shoulder 29 and the back-pressure shoulder 17 along pressure shoulder 42 slips of tilting in radial pressure more and more big on the annular protrusion 45, it will cause survey sensor 10 to remain on airtightly in the installation adapter 44.
In embodiment according to the stationary installation 20 of Figure 10, constitute the installation of fixture 202 down and take over 44 and constituted in this wise, promptly be integrally formed in radial flange 43 on the housing 12, that constitute upper fixing element 201 and sunk to install and take in 44.Configuration give the pressure shoulder 42 of fixture 202 down be constitute by a recurve 48 towards the radial flange 43 that sinks to and configuration press 41 of shoulder to be configured on the upper side of the radial flange 43 of recurve 48 for upper fixing element 201.The spring part of stationary installation 20 is collars 49, and this collar has the bar upwards bending 491 on two end that faces with each other, and by them collar 49 is shunk.
In order to insert collar 49 is installed under the situation that adapter 44 is installed at survey sensor 10, wherein also be that the back-pressure shoulder 17 that is configured on the housing 12 touches on the pressure shoulder 29 that is configured in the installation adapter 44, collar 49 is by being reduced 491 its diameters and being in place from above in this state with two bars of an instrument compression on the radial flange 43 in adapter 44 is installed.After bar was released 491, collar 49 radially strutted and moves between radial flange 43 and the recurve 48, and at this moment collar produces 17 pairs of axial pressing forces of pressing shoulder 29 of back-pressure shoulder.This recurve 48 preferably like this wedge shape ground tilt, promptly it is taken over 44 free-ended distances and also increases from installing along with the increase of recurve 48 radial depths.This will cause the increase that above-mentioned axial pressing force struts along with collar 49 and strengthen.In Figure 11, can see the vertical view of this collar 49.
In the embodiment of the stationary installation 20 of Figure 12, upper fixing element 201 also by be configured on the housing 12 radial flange 43 and down fixture 202 take over 44 and constitute by installing, this installations take over be inserted into reach in the entrance hole 15 with the tube wall 111 of area under control section 11 by around weld seam 26 be connected airtightly.Install to take on 44 the free end-as shown in Figure 8-form one around annular protrusion 45, this annular protrusion has on it deviates from the downside of radial flange 43 presses shoulder 42.Another presses shoulder 41 also to be configured on the radial flange 43.Two are pressed shoulder 41,42 is annular slope 51,52 on radial flange 43 and the annular protrusion 45.The spring part 40 of stationary installation 20 has spring part zone 53,54 two end opposite settings on diameter, that have the V-arrangement cross-sectional profiles, and they constitute the contact of power transmission chain ground on inclined-plane 51,52 (Figure 12) when stationary installation 20 is installed.In the embodiment of Figure 12 and 13, spring part 40 is configured to have the U-shaped spring clamp 50 of two spring legs 501 and 502.Described spring part zone 53,54 with V-arrangement cross-sectional profiles is configured to spring leg 501 and 502.Whole spring clamp 50 also can selectively have the V-arrangement cross section profile.When mounted, when being inserted into, installs under the situation of taking in 44 by survey sensor 10, spring clamp 50 will be by spring leg 501,502 are pulled to radial flange 43 and install take on 44 the annular protrusion 45 perpendicular to survey sensor 10 ground, the spring part zone 53,54 that wherein has a V-arrangement cross-sectional profiles struts on the inclined-plane 51 each other at spring leg 501,502, move on on the annular slope 51,52 that is looped around on radial flange 43 and the annular protrusion 45 with being configured the power transmission chain under the situation on 52.As shown in figure 13, the leg end of spring leg 501,502 is promptly obtained certain locking of spring leg 501,502 by moulding like this when spring clamp 50 is pushed to.In order to dismantle spring clamp 50 spring leg 501,502 is strutted a little.
The present invention is not limited on the embodiment of the described survey sensor that uses as Lambda probe.Similarly, also can make and determine the survey sensor that nitrogen oxide in the engine exhaust gas or other harmful gas material concentration are used or measure the temperature sensor that exhaust gas temperature uses to be fixedly mounted on the area under control section 11 of carrying waste gas by stationary installation 20 according to the present invention.
Claims (23)
1. be used on conveying measurement gas area under control section (11), fixing a definite measurement gas, especially the physical characteristics of engine exhaust gas, have a housing (12) and be located at the device of the survey sensor (10) of sensing element (13) wherein, this device has two interactional fixtures (201,202), the tube wall (111) of the area under control section (11) that is used to that housing (12) axially is clamped in and has survey sensor (10) entrance hole (15), one of them fixture (201) configuration gives area under control section (11) for housing (12) and another fixture (202) configuration, it is characterized in that: fixture (201,202) has each other in right corresponding holder; And a holder of each holder centering has wedge profile, and it is directed in this wise, promptly by the right holder of holder each other the passing of form fit form a axial force component from housing (12) point tube section (11).
2. according to the device of claim 1, it is characterized in that: it is a clamping ring (21) that the fixture (201) of housing (12) is given in configuration, it is overlapping an annular bearing surface (16) that is configured on the housing (12) with a radially inwardly outstanding ring shoulder (22), and configuration is one for the fixture (202) of area under control section (11) to be fixed on corresponding ring (24) on the area under control section (11) with one heart with entrance hole (15); And these holders are set at clamping ring and corresponding ring (21,24) is gone up and be meshed each other according to the mode of bayonet fittings.
3. according to the device of claim 2, it is characterized in that: be arranged on holder on the corresponding ring (24) by constituting at the notch (27) that opens wide towards front end that cuts out on the ring wall and each notch has a slot (28) that extends continuously on the circumferencial direction of notch bottom, its a slot edge (281) at least in part relatively the xsect of clamping ring (21) become an acute angle ground extension; And the holder that is arranged on the clamping ring (21) is made of that stagger in a circumferential direction each other, radially outstanding intermediate plate (23), from the width of this intermediate plate of circumferencial direction less than the axial width of the width of notch (27) and this intermediate plate less than the axial slit well width on the slot end of slot (28).
4. according to the device of claim 3, it is characterized in that: the external diameter of clamping ring (21) is less than the internal diameter of correspondence ring (24); And intermediate plate (23) is set on the end of leaving ring shoulder (22) of clamping ring (21) and protruding.
5. according to the device of claim 3 or 4, it is characterized in that: on clamping ring (21) and corresponding ring (24), respectively be provided with notch that has slot (28) (27) and intermediate plate (23) similar number, that stagger with the same circumference angle each other.
6. according to one device among the claim 1-5, it is characterized in that: in clamping ring (21), offer boring (30), so that insert a pin shape erecting tools that clamping ring (21) is rotated.
7. according to one device among the claim 1-5, it is characterized in that: on a ring wall section of clamping ring (21), form a spanner hexagon (31).
8. according to the device of claim 1, it is characterized in that: configuration is made of for the fixture of housing (12) housing (12) itself and configuration is made of for the fixture (202) of area under control section (11) a sleeve pipe (33) that is fixed on one heart on the area under control section (11) with entrance hole (15); The holder that is arranged on the housing (12) constitutes by go up the oblique shoulder section of arranging on the diameter, outwards descend (181) at housing (12), and two legs (361 of the holder of sleeve pipe (33) by the horseshoe-shaped plate (36) that can lead are given in configuration with being translated radially in the xsect of sleeve pipe (33), 362) constitute, each leg can be pulled to one respectively and tiltedly take on the section (181).
9. device according to Claim 8 is characterized in that: the sleeve pipe (33) that is used for plate (36) guiding has two grooves (37) that are arranged in the round sector shape on the diameter, and their axial width is greater than the leg thickness of plate (36).
10. it is characterized in that according to Claim 8 or 9 device: tiltedly take on section (181) and be at housing (12) and go up around the oblique part of shoulder (18) of the annular that constitutes; And the recess (38) of the leg edge (281) that is facing with each other of the leg (361,362) of plate (36) with circular arc, leg (361,362) strutted finish plate (36) under the situation and insert sleeve pipe (33) after, surround housing (12) these notch parts.
11. the device according to claim 1 preamble is characterized in that: each fixture (201,202) has one and presses shoulder (41,42); And a spring part (40) that acts on the pressure shoulder (41,42) applies an axial clamping force that acts between these fixtures (201,202).
12. device according to claim 11, it is characterized in that: the fixture (201) of housing (12) is given in configuration, and to be unitary construction give the fixture (202) of area under control section (11) in the radial flange (43) on the housing (12) and configuration is that (44) are taken in an installation that is fixed on one heart on the area under control section (11) with entrance hole (15), and housing (12) axially is bearing in this installation adapter.
13. device according to claim 12, it is characterized in that: spring part (40) is a ring (46), it make by spring steel and have that star draws with ring (46) integrant spring arm (47), these spring arms form the clamping chuck (471) that is bent and has a bending under the situation of acute angle on its free end at the ring axis with ring (46).
14. device according to claim 13, it is characterized in that: pressure on the described radial flange (43) shoulder (41) is configured in it to deviate from and installs on upper side of taking over (44), and installs and take on (44) another and press shoulder (42) to be configured in one to be molded over and to install on the downside that deviates from radial flange (43) of taking over the annular protrusion (45) on (44); And ring (46) contact is gone up and clamping chuck (471) is clamped on the pressure shoulder (42) that is configured on the annular protrusion (45) at the pressure shoulder (41) that is configured in radial flange (43).
15. the device according to claim 14 is characterized in that: the relative outside surface of taking over (44) of installing of pressure shoulder (42) that is configured on the annular protrusion (45) becomes ground, an obtuse angle to extend.
16. according to one device among the claim 13-15, it is characterized in that: ring (46) is fixed best soldered or be clamped on the radial flange (43).
17. the device according to claim 11 is characterized in that: install and take over (44) structure like this, promptly radial flange (43) is sunk to install and is taken in (44); The pressure shoulder (42) that installation is taken on (44) is configured in it on the upper side of recurve (48) by a recurve towards radial flange (43) (48) formation in installation adapter (44) inwall and the pressure shoulder (41) on the radial flange (43); Reaching spring part (40) is a collar (49) that is being strutted after being placed on the radial flange (43), and this collar is moved between radial flange (43) and the recurve (48) diametrically.
18. the device according to claim 17 is characterized in that: recurve (48) tilts in this wise, and promptly it is taken over (44) free-ended distance and increase from installing along with the increase of recurve (48) radial depth.
19. the device according to claim 11 is characterized in that: press shoulder (41,42) constituting around inclined-plane (51,52) on the annular protrusion of taking on (44) (45) to be installed by being molded on the other hand reaching on the radial flange (43) on the one hand; Inclined-plane (51,52) is arranged on radial flange (43) and annular protrusion (45) each other on dorsad the side with opposite oblique angle; And spring part (40) has spring part zone (53,54) two end opposite settings on diameter, that have the V-arrangement cross-sectional profiles, and they constitute the contact of power transmission chain ground on inclined-plane (51,52).
20. the device according to claim 19 is characterized in that: spring part zone (53,54) are built on the spring leg (501 and 502) of a U-shaped spring clamp (50), and this spring clamp laterally is pulled on radial flange (43) and the annular protrusion (45).
21. the device according to claim 20 is characterized in that: inclined-plane (51,52) are had about 90 ° angle of circumference by the zone of the spring leg of spring clamp (50) (501 and 502) overlap joint.
22. according to one device among the claim 1-21, it is characterized in that: give in configuration and constructed a pressure shoulder (29) on the fixture (202) of area under control section (11), a back-pressure shoulder (17) that is configured on the housing (12) contacts airtightly on this pressure shoulder (29).
23. the device according to claim 22 is characterized in that: press shoulder (29) and back-pressure shoulder (17) for annular and with one of relative housing axis greater than 0 ° and be less than or equal to 90 ° angle and extend; Shoulder (29,17) is flat or at least one shoulder (29,17) is configured to convex.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10308079 | 2003-02-26 | ||
| DE10308079.1 | 2003-02-26 | ||
| DE10346205.8 | 2003-10-06 | ||
| DE10346205A DE10346205B4 (en) | 2003-02-26 | 2003-10-06 | Device for attaching a sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1530646A true CN1530646A (en) | 2004-09-22 |
| CN100483121C CN100483121C (en) | 2009-04-29 |
Family
ID=33132664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410006756 Expired - Fee Related CN100483121C (en) | 2003-02-26 | 2004-02-26 | Apparatus for fixing measuring sensor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004258040A (en) |
| CN (1) | CN100483121C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104049024A (en) * | 2013-03-12 | 2014-09-17 | 罗伯特·博世有限公司 | Special seal geometry for exhaust gas sensors for producing high leak tightness with respect to the measurement chamber |
| CN104422471A (en) * | 2013-09-06 | 2015-03-18 | 森萨塔科技公司 | Clip-in support ring |
| CN108350734A (en) * | 2015-08-14 | 2018-07-31 | 桩基动力测试公司 | Borehole test device |
| CN110195636A (en) * | 2018-02-26 | 2019-09-03 | 埃贝斯佩歇排气技术有限责任两合公司 | Exhaust equipment |
| CN110573109A (en) * | 2017-03-31 | 2019-12-13 | 乔伊马克斯有限责任公司 | Medical fixing device and medical equipment |
| CN110686717A (en) * | 2019-11-22 | 2020-01-14 | 徐州双裕电子技术有限公司 | Sensor assembly of firm installation |
| US10690805B2 (en) | 2013-12-05 | 2020-06-23 | Pile Dynamics, Inc. | Borehold testing device |
| CN112229429A (en) * | 2019-07-15 | 2021-01-15 | 图尔克控制有限公司 | Fixing adapter for sensor |
| CN114424069A (en) * | 2019-09-20 | 2022-04-29 | 克诺尔商用车制动系统有限公司 | Sensor and system consisting of a sensor and a fastening device |
| CN114424069B (en) * | 2019-09-20 | 2024-04-30 | 克诺尔商用车制动系统有限公司 | Sensor and system comprising a sensor and a fastening device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010031656A1 (en) * | 2010-07-22 | 2012-01-26 | Robert Bosch Gmbh | Device for installing a measuring sensor |
| US20120247179A1 (en) * | 2011-04-01 | 2012-10-04 | Ti Group Automotive Systems, Llc | Sensor housing and latching mechanism for sensor housing |
| DE102013222594A1 (en) | 2013-03-12 | 2014-09-18 | Robert Bosch Gmbh | Special sealing geometry for exhaust gas sensors to create a high level of tightness |
| EP4019954A1 (en) * | 2020-12-22 | 2022-06-29 | optek-Danulat GmbH | Measurement cell with anti-rotation feature |
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| US4040930A (en) * | 1976-02-05 | 1977-08-09 | Uop Inc. | Oxygen sensor |
| JPS6146453Y2 (en) * | 1979-01-30 | 1986-12-27 | ||
| JPS61131656U (en) * | 1985-02-05 | 1986-08-16 | ||
| DE19608543A1 (en) * | 1996-03-06 | 1997-09-11 | Bosch Gmbh Robert | Sensor |
| JP3660116B2 (en) * | 1997-12-26 | 2005-06-15 | 日本特殊陶業株式会社 | Gas sensor |
| JP4478272B2 (en) * | 2000-02-03 | 2010-06-09 | 日本碍子株式会社 | Gas sensor |
| DE10022958A1 (en) * | 2000-05-11 | 2001-11-22 | Bosch Gmbh Robert | Gas sensor comprises metallic housing and hollow screw, with conically shaped surface on outside of housing |
| JP2002090335A (en) * | 2000-09-18 | 2002-03-27 | Ngk Spark Plug Co Ltd | Gas sensor |
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- 2004-02-26 JP JP2004052132A patent/JP2004258040A/en active Pending
- 2004-02-26 CN CN 200410006756 patent/CN100483121C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049024A (en) * | 2013-03-12 | 2014-09-17 | 罗伯特·博世有限公司 | Special seal geometry for exhaust gas sensors for producing high leak tightness with respect to the measurement chamber |
| CN104422471B (en) * | 2013-09-06 | 2018-08-31 | 森萨塔科技公司 | snap-in support ring |
| CN104422471A (en) * | 2013-09-06 | 2015-03-18 | 森萨塔科技公司 | Clip-in support ring |
| US10690805B2 (en) | 2013-12-05 | 2020-06-23 | Pile Dynamics, Inc. | Borehold testing device |
| US10330823B2 (en) | 2013-12-05 | 2019-06-25 | Pile Dynamics, Inc. | Borehole testing device |
| US11340379B2 (en) | 2013-12-05 | 2022-05-24 | Pile Dynamics, Inc. | Borehole inspecting and testing device and method of using the same |
| CN108350734B (en) * | 2015-08-14 | 2019-05-31 | 桩基动力测试公司 | Borehole test device |
| CN108350734A (en) * | 2015-08-14 | 2018-07-31 | 桩基动力测试公司 | Borehole test device |
| CN110573109A (en) * | 2017-03-31 | 2019-12-13 | 乔伊马克斯有限责任公司 | Medical fixing device and medical equipment |
| CN110573109B (en) * | 2017-03-31 | 2023-07-28 | 乔伊马克斯有限责任公司 | Medical fixing device and medical equipment |
| CN110195636A (en) * | 2018-02-26 | 2019-09-03 | 埃贝斯佩歇排气技术有限责任两合公司 | Exhaust equipment |
| CN112229429B (en) * | 2019-07-15 | 2024-03-26 | 图尔克控制有限公司 | Fixed adapter for sensor |
| CN112229429A (en) * | 2019-07-15 | 2021-01-15 | 图尔克控制有限公司 | Fixing adapter for sensor |
| CN114424069A (en) * | 2019-09-20 | 2022-04-29 | 克诺尔商用车制动系统有限公司 | Sensor and system consisting of a sensor and a fastening device |
| CN114424069B (en) * | 2019-09-20 | 2024-04-30 | 克诺尔商用车制动系统有限公司 | Sensor and system comprising a sensor and a fastening device |
| CN110686717B (en) * | 2019-11-22 | 2021-07-20 | 徐州双裕电子技术有限公司 | Sensor assembly of firm installation |
| CN110686717A (en) * | 2019-11-22 | 2020-01-14 | 徐州双裕电子技术有限公司 | Sensor assembly of firm installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100483121C (en) | 2009-04-29 |
| JP2004258040A (en) | 2004-09-16 |
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