CN106523710A - Lip seal and method of determining the state of the lip seal or the unit to which it is sealed - Google Patents
Lip seal and method of determining the state of the lip seal or the unit to which it is sealed Download PDFInfo
- Publication number
- CN106523710A CN106523710A CN201610657510.5A CN201610657510A CN106523710A CN 106523710 A CN106523710 A CN 106523710A CN 201610657510 A CN201610657510 A CN 201610657510A CN 106523710 A CN106523710 A CN 106523710A
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- China
- Prior art keywords
- lip seal
- lip
- magnetic field
- magnet
- seal part
- 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.)
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3296—Arrangements for monitoring the condition or operation of elastic sealings; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The present invention provides a lip seal and a method of determining the state of the lip seal or the unit to which it is sealed. The embodiment relates to a lip seal (100). The seal (100) includes a sealing lip (105), a main body (115) and a magnet (110), wherein the magnet (110) is connected to the sealing lip (105) and the main body ( 115). The other of the sealing lip portion (105) and the body portion (115) includes a magnetic field sensor (120) for detecting the distance between the magnet (100) and the magnetic field sensor (120) during the operation of the lip seal (100).
Description
Technical field
Multiple embodiments are related to a kind of lip seal part and for determining lip seal part or being sealed by lip seal part
Unit state method.
Background technology
Seal or sealing system are widely used in many technical fields, and occur with many different forms.It is a kind of normal
Application example with sealing is rotation application, and in rotation application, axle is rotated and tried relative to counterpart (counterpart)
Figure makes component (for example, mechanical component or electrical components) not leaked, the evil of dust or other potentially harmful substances.Answer this
With in, sealing can bear frictional force, and the frictional force can cause frosted effect (abrasive effect), and this can ultimately result in
Sealing failure.Traditional monitoring system can inform the user the leakage having occurred and that.However, this may need for faulty seal it is standby
Part, otherwise user may then risk the risk for causing other components to break down in use.Subsequently, may not be keeped in repair
Process, till damage is had occurred and that.These problems can sealing bear dynamic force (dynamical force) other should
It is further related with.
The content of the invention
Accordingly, it is desired to provide a kind of improvement design for monitoring the mode of operation of sealing.
According in a first aspect, embodiment is related to a kind of lip seal part.The lip seal part includes sealing lip oral area, master
Body portion and magnet, the magnet are connected with sealing lip oral area and main part.It is another in sealing lip oral area and main part
One includes magnetic field sensor, magnetic field sensor be used for detection lip seal part run duration magnet and magnetic field sensor it
Between distance.In other words, if magnet is connected to lip in one embodiment, magnetic field sensor is subsequently attached to master
Body portion.Vice versa, if magnetic field sensor is connected to lip in different embodiments, magnet is subsequently attached to main body
Portion.Therefore the abrasion of lip seal part can be monitored, or even the movable member on the setting surface that lip seal part is provided can be monitored
Mode of operation.
In certain embodiments, sealing lip oral area has symmetry axis, and in other words, sealing lip oral area is annular.Sealing lip
Oral area can be moved radially changing magnetic along vertical with symmetry axis relative to main part by sealing lip oral area in run duration
The distance between body and magnetic field sensor.Additionally, the rotary speed of measurable axle.
In certain embodiments, lip seal part also includes flexible member, and flexible member being capable of part baffle seal lip
The movement in portion, the action of sealing lip oral area are movements radially outward.In other words, flexible member can apply radially inward
Reaction force, the power is less than the power for making sealing lip oral area move radially outward.Magnet is fixed on flexible member.This can provide
Increase the mode for making the power of application and its component sealing, therefore make lip seal part more reliable.
In certain embodiments, flexible member with the Part I contacted with main part or the first branch (limb) and with
The Part II of sealing lip oral area contact or the second branch.Part II is diametrically opposed to be moved in Part I.Magnet is pacified
Fill on the second portion, and magnetic field sensor is mounted over the first portion.Therefore can be by flexible member be arranged on lip
Magnet and magnetic field sensor are pre-installed on flexible member to simplify the lip seal using flexible member before in mouthful seal
The embodiment of the monitoring device of part.
In certain embodiments, flexible member is peripherally disposed garter springs and at least partly includes annular
Space.Magnet is located in annular space.This can cause preferably to protect magnet from infringement.
In certain embodiments, magnet is connected with the flexible member for being diametrically provided with shank.Axle can be chock
(peg), pin (pin) or nail (stud).End bearing magnet of the axial plane to magnetic field sensor.This can provide one kind with closer to biography
The mode of sensor places the selection of magnet, and this can cause more to accurately measure.
In certain embodiments, main part is provided with blind hole.Magnetic field sensor is attached to the blind end of blind hole, and blind hole is matched somebody with somebody
It is set to.Magnet is installed in this mode of the embodiment on axle and can realize
It is more stable.
In certain embodiments, magnetic field sensor includes Hall element.Magnetic field sensor can generally be measurement magnetic field
Absolute intensity absolute magnetometer (absolute magnetometer) or measurement changes of magnetic field relative magmetometer
(relative magnetometer).Alternatively, magnetic field sensor may include for example with changes of magnetic field resistor (for example,
XMR sensor), superconducting quantum interference device (SQUID) (superconducting quantum interference device), inductance is picked up
Swash circle (inductive pickup coil), vibrating example magnetometer (vibrating sample magnetomete) or
Bose-Einstein Bose-Einstein condensation magnetometer (Bose Einstein condensate magnetometer).
This can allow to provide signal, even if the magnetic field of sensor measurement constant (absolute intensity in other words, measuring magnetic field is constant).
In certain embodiments, magnetic field sensor includes to data storage device providing the interface of signal, the signal bag
Include the information with regard to the distance between magnet and magnetic field sensor.Therefore, the time that can assess the abrasion of lip seal part enters
The time of journey or mode of operation changes.
In certain embodiments, magnetic field sensor includes transmitter module (transmitter module), transmitter mould
Block includes the signal of the information with regard to the distance between magnet and magnetic field sensor for providing.Therefore, the installation of cable and
The complex situations occurred with cable can be avoided by.
According on the other hand, embodiment is related to a kind of for determining the unit or lip seal that are sealed by lip seal part
The method of the state of part.State or mode of operation may include the dynamic bias (dynamic of the axle sealed by lip seal part
Run-out, DRO), inclined shaft bias (angular shaft misalignment) or the static bias (STBM) of axis hole.Additionally, can
Determine the position of rotary speed, axle or abrasion and therefore estimate the useful life of lip seal part.Methods described is included by lip
The magnetic field sensor measurement of in the main part and sealing lip oral area of seal comes from the main body for being connected to lip seal part
The magnetic field of another the magnet in portion and sealing lip oral area.Method of this this mode of offer can allow to continue to monitor abrasion or
Mode of operation.
Description of the drawings
Hereinafter by some embodiments of equipment and/or method, only simultaneously reference will be made to the accompanying drawings as an example, attached
In figure：
Fig. 1 a show the lip seal part according to embodiment；
Fig. 1 b show the magnet of the lip seal part according to embodiment and the arrangement of magnetic field sensor；
Fig. 2 a to Fig. 2 e are shown according to embodiment by being sealed using the lip seal part of magnet and magnetic field sensor
The various measurements of the different operating states of unit or lip seal part；And
Fig. 3 a to Fig. 3 d show the various embodiments of the lip seal part with magnet and magnetic field sensor.
Specific embodiment
Various example embodiments are more fully described now with reference to the accompanying drawing of some example embodiments is shown.Attached
In figure, in order to clear, the thickness in line, layer and/or region is exaggerated.
Therefore, when other embodiments of the invention can carry out it is various modification and can be can preferred form of this when, the present invention
Some example embodiments as an example in the accompanying drawings be shown and here is described in detail.It should be understood that：Being not intended to will
Example embodiment is limited to disclosed concrete form, and in contrast, example embodiment is intended to cover fall into the scope of the present disclosure
Interior all modifications, equivalent and can preferred form of this.Through the description to accompanying drawing, identical label represents same or analogous unit
Part.
It will be understood that, when element is referred to as " being connected to " another element, the element can be directly connected to or be directly connected to which
Its element, or intermediary element can be provided with.In contrast, when element is referred to as " being directly connected to " another element, then do not set
It is equipped with intermediary element.Other words for describing relation between element should explain in a similar manner (for example, " and ... it is middle " with
" directly exist ... centre ", " adjacent " and " direct neighbor " etc.).
Term as used herein is only for describing the purpose of specific example embodiment, and is not intended to further limit example reality
Apply example.As used in this, unless context is clearly otherwise indicated, otherwise singulative is intended to also include plural form.
Will be further understood that, when here uses term " including ", the term is specified and is provided with the feature, integer, step, behaviour
Make, element and/or component, but be not excluded for being provided with or increase one or more of the other feature, integer, step, operation, element,
Component and/or combinations thereof.
Unless otherwise defined, the implication of all terms (including technical term and scientific terminology) otherwise as used herein with show
The implication are generally understood that by example embodiment those of ordinary skill in the art is identical.It will further appreciated that：Unless here is another
Explicitly define, otherwise term (for example, those terms defined in universaling dictionary) should be interpreted as having with them in phase
The consistent implication of implication in the semanteme in pass field.
The first embodiment for showing in fig 1 a is related to lip seal part 100.Lip seal part 100 includes sealing lip oral area
105th, and sealing lip oral area 105 connection magnet 110 and the main part 115 including magnetic field sensor 120, wherein, magnetic field sensing
Device 120 is used for distance of the detection between lip seal part run duration magnet 110 and magnetic field sensor 120.Lip seal part
May include the synthetic material of such as polymer (for example, elastomer).Main part 115 can be attached to local fixed component.Lip
Portion 105 can provide setting surface with mobile component dynamic Contact or sliding contact, the latter for lip seal part, and the surface forces lip
Portion 105 deforms upon so that lip 105 is pushed to main part 115.This then can cause restoring force in lip seal part 100
(reset force), so that produce sealing effect.Movable-component may be moved along linear path, it is also possible to rotation group
Part, for example, axle.Additionally, in other embodiments, magnet 110 and commutative their position of magnetic field sensor 120.Magnet 110
Or sensor 120 can be tied to (for example, glued) lip 105 or main part 115 respectively by adhesion.Magnet 110 can be attached to
Or embedding sealing lip portion 105.Magnetic field sensor 120 can be attached to or be embedded in main part 115.Vice versa, and magnet 110 can
Main part 115 is attached to or is embedded in, or in another embodiment, magnetic field sensor 120 can be attached to or embedding sealing lip
Portion 105.
In certain embodiments, magnetic field sensor 120 includes Hall element.This can be allowed in the magnetic field of sensor measurement
It is to measure in the case of constant.Magnetic field sensor 120 can be operatively connected to cable 125 or electric wire, cable 125 or electricity
Line can provide measurement signal to electronic installation (for example, processor, display, data storage device etc.).Alternatively, lip seal
Part 100 may include to be partially submerged into the shell 130 of main part 115.Shell 130 can be used to reinforce, or can be used for lip seal
Part 100 is arranged on local fixed component.
This can cause the abrasion of monitoring lip seal part 100 or the mode of operation of movable member to become feasible.Turn now
To Fig. 1 b, show that sealing lip oral area 105 in certain embodiments has symmetry axis 140, in other words, lip seal part 100 can
Rotate against symmetry axis and by medium-tight.Sealing lip oral area 105 can pass through sealing lip oral area 105 relative to master in run duration
Body portion 115 is moved radially along vertical with symmetry axis 140, changes distance 135.Fig. 1 b show the lip seal according to embodiment
The arrangement of the magnet 110 and magnetic field sensor 120 of part 100, wherein, lip seal part 100 can be relative to rotary components (such as,
Axle) and by medium-tight.Symmetry axis 140 is perpendicular to sagittal plane or the plane of delineation of Fig. 1 b.Magnet 110 can be it is circular,
For example, the magnetic stripe for arranging along the excircle of lip 105.
Therefore, mode of operation (dynamic bias (the dynamic run- of the axle for such as, being sealed by lip seal part
Out, DRO, also known as " dynamic bounce "), inclined shaft bias (angular shaft misalignment) or axis hole it is static eccentric
(shaft-to-bore misalignment, STBM)) can be detected.Additionally, measurable rotary speed is (for example, per minute
Revolution (RPM)), the position (it is thus determined that the useful life estimated) of the abrasion of axle or lip seal part 100.Will hereinafter more
These modes of operation are explained carefully.The magnetic force of 120 measurable magnet 110 of sensor.The value is used for determining which is arrived installed in close
The distance 135 of the magnet 110 in envelope lip portion 105.The measurement can provide the information with regard to DRO, RPM, STBM or lip abrasion.
By lip abrasion detection, the instruction of the remaining proportion to lip 105 can be provided.
Each in Fig. 2 a, Fig. 2 b, Fig. 2 c, Fig. 2 d and Fig. 2 e is shown for lip seal part 100 or by lip seal
The different operating states of the unit sealed by part 100 with the time adjust the distance 135 measurement.Fig. 2 a show in the event of DRO, then may be used
Change of the range measurement with the time can occur.DRO be probably by bending shaft, vibration, high slow radian move (lobbing) and its
Caused by its error institute.For example, DRO can be described as the radial distance that axle cannot be rotated around its real center.DRO meetings
Abrasion uneven and sealing life shortens be may include to the impact that sealing has.Distance Curve 210 can be illustrated in the situation of DRO
Under sinusoidal shape near the zero axle.Zero axle represents the perfect condition (in theory) that DRO is 0, and wherein, axle is (in the right hand of Fig. 2 a
Shown by solid line circle on side) with accommodate the axle hole (dashed circle) concentric alignment.In actual applications, due to including axle and
The production tolerance limit of the unit of local fixed component (component has the hole for accommodating the axle), it is possible that inevitably
Have slight DRO (for example, up to axle radius 1%, 2% or 5%).DRO can with the amplitude A of measured distance Curve 210 into
Ratio is simultaneously determined by amplitude A.If DRO exceeds tolerance threshold, for example, more than the 5% or 10% of axle radius, then magnetic field
Sensor can provide the signal with the information changed over regard to distance, and therefore produce caution signal.For example can pass through
It is connected to the monitoring mode of magnetic field sensor to provide a user with caution signal.
Fig. 2 b are displayed in there is change of the distance with the time in the case that lip weares and teares.As explained above, in reality
Slight DRO can be provided with using in, and in order to more fully understand, the distance for being illustrated in exaggerated form sinusoidal shape in figure 2b is bent
Line.From time point t0The first measurement for starting causes the 221 (f (t of sine-shaped first distance function oscillated around in zero axle0))。
From time point t1The second measurement for starting cause below zero axle and the axle parallel with zero axle oscillate around it is sine-shaped
222 (f (t of second distance function1)).Compared to time interval t1-t0, sinusoidal cycle time in this is negligible.Or
Person, for example, sinusoidal cycle time can at most be one second or one minute, and time interval t1-t0Can be at least one hour or
One day.In (f (t0)) and (f (t1)) between skew w can represent the abrasion having occurred and that during time interval with regard to lip
Amount.
Fig. 2 c illustrate how to measure the rotary speed of axle.Rotation speed profile 230 presents above-mentioned sinusoidal, can be by surveying
Measure time intervals between two of SIN function neighbouring peak values to obtain the time (fr) of a complete rotation.Time (fr)
Divided by 60 number of times for providing rotation per minute.Can be obtained by below equation and select rotation per second in units of rice on axle surface
Speed：
Wherein, d is the diameter with millimeter as unit axle.
In certain embodiments, more than one magnetic field sensor can be attached to lip seal part.In one embodiment
In, four sensors S1, S2, S3 and S4 are separately mounted at 0 °, 90 °, 180 ° and 270 ° of position.Fig. 2 d show and use four
Individual sensor measures DRO, and wherein, sensor S1 produces the first sine curve 241, and sensor S2 produces the second sine curve 242,
Sensor S3 produces the 3rd sine curve 243, and sensor S4 produces the 4th sine curve 244.Due to the position of sensor, two
The curve of adjacent sensors represent between 90 ° of phase difference.DRO causes the amplitude A of curve equal, and passes through the width
Spend to determine DRO.
Fig. 2 e are similar to the situation that STBM occurs.Axle (being shown as solid line circle in the lower left of Fig. 2 e) and hole (dashed circle)
Between deviation can be their center line shift institute caused by a static state.Can be by a survey of sealing
The wider evidence to see this state of wear patterns on lip.Fig. 2 e are shown using four sensors as shown in fig. 2d
Measurement to STBM, wherein, sensor S1 produces the first sine curve 251, and sensor S2 produces the second sine curve 252, passes
Sensor S3 produces the 3rd sine curve 253, and sensor S4 produces the 4th sine curve 254.In this embodiment, sensor S1 and
Sensor S3 aligns on the vertical axis, and, perpendicular to rotary shaft, sensor S2 and sensor S4 is right on the horizontal axis for the vertical axis axle
Together, the Horizontal-shaft vertical is in rotary shaft and the longitudinal axis.Therefore, vertical missing can be sinusoidal bent by the first sine curve 251 and the 3rd
Skew between line 253 and be determined, horizontal departure can pass through between the second sine curve 252 and the 4th sine curve 254
Offset and be determined.The skew between two curves can be calculated by, for example, the difference between the minimum of a value of each curve.
It is also provided with this embodiment：Two lip seal parts are arranged on into the axially different position of axle (for example, in axle
On two offsides for holding).The inclined shaft that this may be provided with axle is eccentric, and wherein, the rotary shaft of axle is inclined relative to hole.With STBM phases
Seemingly, the wear patterns that inclined shaft bias is also resulted on the lip on the side of sealing are wider.
The various embodiments of adoptable lip seal part 100, these realities are shown in Fig. 3 a, Fig. 3 b, Fig. 3 c and Fig. 3 d
Apply the alternate embodiments that example is the embodiment for showing in fig 1 a.By no longer to the phase in Fig. 1 a in Fig. 3 a to Fig. 3 d
Answer the component of counter-element to explain, hereinafter only relate to the difference between them.In certain embodiments, lip seal part
100 also include flexible member 305-1,305-2, are capable of the action in part baffle seal lip portion 105, sealing lip oral area 105
Action is to move radially outward.Magnet 110 is fixed on flexible member 305-1,305-2.This can provide increase to application or its
The mode of the power of component sealing, so as to make lip seal part more reliable.In Fig. 3 a, Fig. 3 b, Fig. 3 c, spring element 305-1
It is the garter springs in circumferential notch, garter springs are faced radially inward and set on the surface of the sealing lip oral area 105 of outside
Put.
In certain embodiments, as shown in fig. 3a, magnet 110 and the flexible member for being radially provided with shank (315)
305-1 is connected.End bearing magnet 110 of the shank 315 towards magnetic field sensor 120.This makes magnet 110 closer to sensor
120, this can cause more to accurately measure.Shank 315 can be fixed to flexible member 305-1, however, this is optional.Another
In embodiment, shank 315 can be fixed directly to lip 105.
In certain embodiments, main part 110 is provided with blind hole 320.Magnetic field sensor 320 is attached to blind hole 320
Blind end, blind hole 320 are configured to be at least partially housed in the end that shank 315 carries magnet 110.Magnet 110 is installed in
This mode of the embodiment in shank 315 can be realized more stable.Magnetic field sensor 120 for example can be fixed on column
In the blind hole 320 of pipe 325, stylostome 325 is clamped blind hole 320 and is configured at least partly accommodate shank 315.
In certain embodiments, as shown in Fig. 3 b and Fig. 3 c, flexible member 305-1 is peripherally disposed lock ring
Spring simultaneously at least partly includes annular space.In fig 3b, magnet 110 is located in annular space.This can cause preferably to protect
Magnet escapes injury.Fig. 3 c show alternate embodiments, and wherein, magnet 110 is installed in the outside of annular space, but can be direct
Above flexible member 305-1.
In certain embodiments, flexible member can be presented the shapes different from above-mentioned garter springs.As shown in Figure 3 d,
The Part II that flexible member 305-2 is contacted with the Part I 330 contacted with main part 115 and with sealing lip oral area 105
33.Part II 335 is diametrically opposed to be moved in Part I 330.Flexible member 305-2 may include such as metal material or
Plastics.Magnet 110 is arranged on Part II 335, and magnetic field sensor 120 is installed in Part I 330.This can simplify for
Using the embodiment of the monitoring device of the lip seal part 100 of flexible member, this is because can with 100 groups of lip seal part
In first step before dress by magnet 110 and magnetic field sensor 120 on flexible member 305-2.Can be entered by Fig. 3 d
One step finds out that main part 115 and sealing lip oral area 105 can be formed by different materials.For example, sealing lip oral area 105 can be by bullet
Gonosome is formed, and main part can be formed by metal material.
In certain embodiments, magnetic field sensor includes to data storage device providing the interface of signal, wherein, the letter
Number include the information with regard to the distance between magnet and magnetic field sensor.Therefore, enter with the abrasion of time on lip seal part
Journey or mode of operation are changed over can be evaluated.Storage device for example can be run in the given time and be received including sensing
The microprocessor of the signal of device measurement is included.Microprocessor can be subsequently attached to computer, and computer can be used to assess sensor survey
Amount.
In certain embodiments, magnetic field sensor includes transmitter module, and wherein, transmitter module is used for providing to be included closing
In the signal of the information of the distance between magnet and magnetic field sensor.Therefore, the installation of cable and answering of occurring with cable
Miscellaneous situation can be avoided by.
According on the other hand, embodiment is related to a kind of for determining the unit or lip seal that are sealed by lip seal part
The method of the state of part.State or mode of operation may include dynamic bias (DRO), tiltedly of the axle sealed by lip seal part
Eccentric shaft or the static bias (STBM) of axis hole.Furthermore, it may be determined that the position of rotary speed, axle or abrasion the therefore lip of estimation
The useful life of seal.Methods described include by the main part of lip seal part magnetic field sensor measurement from lip seal
The magnetic field of the sealing lip oral area of the magnet labiad mouthful seal of the sealing lip oral area connection of part.The method of this this mode of offer can
Allow to continue to monitor abrasion or mode of operation.
Some embodiments are related to a kind of seal sensor for radial shaft seals.In some further embodiments, can
The magnetic force of magnet is measured using Hall element.The value can be used to learning the magnet on primary seal lip oral area away from
From.This mode can provide the information with regard to dynamic bias (DRO), RPM, the static bias (STBM) of axis hole and lip abrasion.It is logical
Lip abrasion detection is crossed, the instruction of the remaining percentage of lip 105 can be given.
Embodiment can provide the information of the abrasion of lip, this is because sealing lip oral area is remained before this can be given at leakage
Remaining how many instruction.The information can provide instruction when sealing must be replaced to client.In addition to lip weares and teares, Ke Huye
The mode of operation of the static bias (STBM) of such as dynamic bias (DRO), axis hole or RPM can be monitored.Even if being sealed in inclined shaft
(also referred to as crooked installation (cocked installation)) is installed by mistake in the case of bias, axis hole is also can detect
It is static eccentric.
In embodiment, four hall effect sensors are installed in 0 °, 90 °, 180 ° and 270 ° and carry out self installation to measure
The magnetic field force of the magnet on main lip is sealed.Can be used to detect different modes of operation from the value of sensor.Dynamic inclined
In the case of the heart, value can have sine wave shape.Maximum and minimum of a value can determine that the dynamic of axle is eccentric.Axis hole static state bias can
Detected using the difference between the sinusoidal crest value of four sensors.Encapsulating main lip abrasion can be by measurement in t0And fixed
The interval t of system1t2…tnWhen sine curve peak value (for example as reference value when, only will be sealing mounted) monitoring.Interval can
Including such as hour, day or the moon.Rotating speed per minute can be by a sensor in sensor in known time section peak
The frequency of value (minimum of a value or maximum) is measuring.Embodiment can provide a user with monitoring sealing lip oral area radial preload and
Abrasion and the mode of mode of operation (DRO, STBM and RPM).
Some further embodiments of embodiment can be used for such as pivoting support bearing (slewing bearing), rolling
Sub- bearing, ball bearing, axle sleeve or sliding bearing.The distance between magnet and measurable two race rings of sensor, the behaviour of bearing
Making state can be as described measured.Lip seal part can for example, be mounted at outer bearing ring, and the lip of lip seal part can be with
Inner bearing ring sliding contact.
Specification and drawings only show the principle of the disclosure.But it will be understood accordingly that those skilled in the art can set
Count out various arrangements, although here is not clearly described or shown, but these arrangement realize the disclosure principle and including
In its spirit and scope.Additionally, all examples of here statement are stated to help in principle only for teaching purpose
Help reader to understand the design that the principle of the disclosure and inventor deepen this area and contribute, and should be interpreted that and be not limited by
The example and condition of the special statement.Additionally, here statement embodiment of the disclosure, aspect, principle and its particular example
All statements are intended to include their equivalent.
It will be understood by those skilled in the art that any block diagram in this represents the schematic circuit of the principle for realizing the disclosure
Concept map.Similarly, it will be appreciated that any flow table, flow chart, state transition graph, false code and analog represent substantial
Represented with computer-readable medium and by computer or processor (no matter this computer or processor whether clearly show)
The various process for performing.
Additionally, claim will be incorporated in specific embodiment accordingly, wherein, each claim is used as single example
Embodiment has been independently arranged.While each claim is separately provided with as single example embodiment, will note, though
So dependent claims in detail in the claims refer to the particular combination of one or more claims, but other examples reality
Apply the group that example may also comprise the dependent claims of the main part with each other dependent claims or independent claims
Close.Except non-declarative does not include particular combination, this combination is otherwise proposed herein.In addition, it is intended that also any including being subordinated to
The feature of the claim of other independent claims, though the claim not immediate subordinate in the independent claims
In the case of.
It shall yet further be noted that the method disclosed in specification or claim can be by having for performing in these methods
The device of the instrument of each action in each action is realizing.
Furthermore, it is to be understood that the disclosure of specification or the multiple actions disclosed in claim or function is not construed to
According to particular order.Therefore, the disclosure of multiple actions or function makes these actions or function be not only restricted to particular order, unless this
A little actions or function can not be exchanged due to technical reason.Additionally, in certain embodiments, individual part may include or decomposable asymmetric choice net
For many sub- actions.This little action can be included and as a disclosed part for the individual part, unless specifically excluded.
Label list
100 lip seal parts
105 lip portions
110 magnets
115 main parts
120 magnetic field sensors
125 cables
130 shells
135 distances
140 symmetry axis
145 inner peripherys
210 distance Curves
221 first distance functions
222 second distance functions
230 rotation speed profiles
241 first sine curves
242 second sine curves
243 the 3rd sine curves
244 the 4th sine curves
251 first sine curves
252 second sine curves
253 the 3rd sine curves
254 the 4th sine curves
305-1,305-2 spring element
310 recesses
315 axles
320 blind holes
325 stylostomes
330 Part I
335 Part II
Claims (10)
1. a kind of lip seal part (100), including：
Sealing lip oral area (105) and main part (115)；
Magnet (110), is connected with sealing lip oral area (105) and main part (115)；
Characterized in that, another in sealing lip oral area (105) and main part (115) includes magnetic field sensor (120), it is used for
Detect the distance between run duration magnet (100) and magnetic field sensor (120) in lip seal part (100).
2. it is lip seal part (100) according to claim 1, it is characterised in that sealing lip oral area (105) has symmetry axis
(140), can be vertical with symmetry axis (140) relative to main part (115) edge by sealing lip oral area (105) in run duration
Move radially to change the distance (135).
3. the lip seal part (100) according to any one of the claims, it is characterised in that also include：Elasticity
Element (305-1,305-2), is capable of the action in part baffle seal lip portion (105), and the action is shifting radially outward
Dynamic, magnet (110) is fixed on flexible member (305-1,305-2).
4. it is lip seal part (100) according to claim 3, it is characterised in that flexible member (305-2) has and main body
Part I (330) and the Part II (335) contacted with sealing lip oral area (105) that portion (115) contacts, wherein, second
Divide (335) diametrically opposed mobile in Part I (330), wherein, magnet (110) is installed on Part II (335),
Magnetic field sensor (120) is installed on Part I (330).
5. it is lip seal part (100) according to claim 3, it is characterised in that flexible member (305-1) is circumferentially square
To the garter springs for arranging, at least partly comprising annular space, magnet (100) is located in the annular space.
6. lip seal part (100) according to claim 5, it is characterised in that magnet (110) be diametrically provided with
The flexible member (305-1) of shank (315) is connected, the end bearing magnet of shank (315) towards magnetic field sensor (120)
(110)。
7. it is lip seal part (100) according to claim 6, it is characterised in that main part (115) is provided with blind hole
(320), wherein, magnetic field sensor (120) is attached to the blind end of blind hole (320), and wherein, blind hole (320) is configured at least
Part accommodates the end that shank (315) carries magnet (110).
8. the lip seal part (100) according to any one of the claims, it is characterised in that magnetic field sensor
(120) include Hall element.
9. the lip seal part (100) according to any one of the claims, it is characterised in that magnetic field sensor
(120) include to data storage device providing the interface of signal, the signal includes magnet (110) and magnetic field sensor (120)
Between distance information.
10. a kind of method for determining the state of the unit that sealed by lip seal part or lip seal part, methods described
Including：
Lip seal part is come from by the magnetic field sensor measurement of in the main part and sealing lip oral area of lip seal part
The magnetic field of another magnet in main part and sealing lip oral area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15380035 | 2015-08-11 | ||
| EP15380035.4 | 2015-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523710A true CN106523710A (en) | 2017-03-22 |
| CN106523710B CN106523710B (en) | 2021-05-25 |
Family
ID=54196920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610657510.5A Active CN106523710B (en) | 2015-08-11 | 2016-08-11 | Lip seal and method of determining the condition of a lip seal or a unit sealed thereby |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106523710B (en) |
| DE (1) | DE102016214942A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424746A (en) * | 2017-09-04 | 2019-03-05 | 卡尔·弗罗伊登伯格公司 | Seal assembly and sealing ring therein |
| CN111271459A (en) * | 2020-03-27 | 2020-06-12 | 中国铁建重工集团股份有限公司 | Device and method for controlling sealing compression amount and readable storage medium |
| CN111373176A (en) * | 2017-11-28 | 2020-07-03 | 卡尔·弗罗伊登伯格公司 | Seal assembly |
| CN112888883A (en) * | 2019-01-17 | 2021-06-01 | 卡尔·弗罗伊登伯格公司 | Sealing device and method for monitoring a sealing device |
| WO2022053636A1 (en) * | 2020-09-10 | 2022-03-17 | Trelleborg Sealing Solutions Germany Gmbh | Seal device and seal arrangement with sensor system for state monitoring |
| US12044315B2 (en) | 2020-09-10 | 2024-07-23 | Trelleborg Sealing Solutions Germany Gmbh | Sealing device and sealing arrangement with sensor system for condition monitoring |
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| DE102018206219B3 (en) * | 2018-04-23 | 2019-09-12 | Christian Maier GmbH & Co. KG | Dynamic seal and rotary union with such a dynamic seal |
| CN113623399B (en) * | 2021-08-23 | 2023-07-14 | 中国计量大学 | Self-adaptive intelligent rubber sealing device and control method thereof |
| CN114812366B (en) * | 2022-04-25 | 2024-06-28 | 中铁工程装备集团有限公司 | Shield machine lip seal ring abrasion detection method and device and shield machine |
| FI20225632A1 (en) * | 2022-07-06 | 2024-01-07 | Steerprop Oy | System and method for measuring condition of radial lip seal arranged circumferentially over rotatable axle |
| DE102022124480A1 (en) * | 2022-09-23 | 2024-03-28 | R. Stahl Schaltgeräte GmbH | Sealing arrangement and method for monitoring the condition and/or leakage of the seal |
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| CN109424746A (en) * | 2017-09-04 | 2019-03-05 | 卡尔·弗罗伊登伯格公司 | Seal assembly and sealing ring therein |
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| CN112888883A (en) * | 2019-01-17 | 2021-06-01 | 卡尔·弗罗伊登伯格公司 | Sealing device and method for monitoring a sealing device |
| CN111271459A (en) * | 2020-03-27 | 2020-06-12 | 中国铁建重工集团股份有限公司 | Device and method for controlling sealing compression amount and readable storage medium |
| WO2022053636A1 (en) * | 2020-09-10 | 2022-03-17 | Trelleborg Sealing Solutions Germany Gmbh | Seal device and seal arrangement with sensor system for state monitoring |
| US12044315B2 (en) | 2020-09-10 | 2024-07-23 | Trelleborg Sealing Solutions Germany Gmbh | Sealing device and sealing arrangement with sensor system for condition monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106523710B (en) | 2021-05-25 |
| DE102016214942A1 (en) | 2017-02-16 |
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