CN2049774U - Dynamic measurer for oil seal radical force - Google Patents
Dynamic measurer for oil seal radical force Download PDFInfo
- Publication number
- CN2049774U CN2049774U CN 88217115 CN88217115U CN2049774U CN 2049774 U CN2049774 U CN 2049774U CN 88217115 CN88217115 CN 88217115 CN 88217115 U CN88217115 U CN 88217115U CN 2049774 U CN2049774 U CN 2049774U
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- CN
- China
- Prior art keywords
- oil sealing
- radial force
- slide block
- feather key
- oil seal
- 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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Abstract
The utility model provides a dynamic measurer for oil seal radical force by measuring angular velocity to measure the oil seal radial force, which is characterized in that a rotary disk connected with a stepless gear system is provided with a plurality of convex strip guide keys; a centrifugation slide block of a concave key groove is arranged vertically on each guide key, wherein, the bottom of centrifugation slide block is matched with the guide key; the inside vertical surface and the outside vertical surface are all arc surfaces, and a hollow cylinder is formed by the aggregation of the two vertical surfaces. A bolster plate of a horizontal annular disk is positioned above the rotary disk and is fixed by a support, wherein, the bolster plate is coaxial with the hollow cylinder and has certain gas with the hollow cylinder. The outside side of the slide block group is provided with a contact point of an alarm circuit. The error between the oil seal radial force measured by the device and the actual value is small.
Description
The utility model relates to a kind of instrument of measured angular speed.
What the following in working order radial force of measurement oil sealing sealing lip generally adopted at present is the Aungus pondage device of Britain George Mykrolis Corp, and its principle of work is that air load sensor two halves method of principal axes is measured.The GMRSealector device that also has the invention of AM General motor company, its principle of work is the radial force that needed air pressure is calculated oil sealing when measuring oil seal lip and leave spool, their weak point is all measured the oil sealing radial force under static condition, and the static radial force values of tolerance down and the numerical value of actual working state have very big difference.
In view of above-mentioned weak point the purpose of this utility model of the prior art is to provide a kind of device of dynamically down measuring radial force similar to actual working state.
The purpose of this utility model can reach by following measure:
A kind of oil sealing radial force dynamic measuring instrument that is used to measure the following in working order radial force of oil sealing sealing lip, it is characterized in that its vertical rotation axis of motor that links to each other with the stepless speed variator system transducer links to each other by the transmission shaft that shaft joint and end are fixed with rotating disk, radially be provided with the bar shaped feather key of some projectioies on the rotating disk, vertically be provided with the centrifugal slider of the spill keyway that bottom and feather key be complementary on every feather key, its inside and outside two vertical planes are arc surface, be collected at and form a hollow cylinder together, coaxial with it but have the horizontal annular plate mat plate of certain interval to be positioned at above the rotating disk in its outside, and maintain static by bearing, establish in addition the contact of warning circuit in the outside of slide block group, the distance of itself and axis equals the oil sealing radius of clean-up.The cross section of feather key is preferably rectangle.Centrifugal slider is preferably six, and warning circuit is preferably sound light control circuit.
The utility model mainly is made up of power, centrifugal and alarm mechanism.Wherein actuating unit mainly includes: stepless change transducer, motor and shaft joint.Centrifugal mechanism mainly includes: rotating disk, centrifugal slider, bearing, backing plate and pressing plate.Alarm mechanism mainly includes: sound light control circuit plate, two movable electric contacts, bulb and acoustics.
Stepless change transducer system adopts the high power transistor transducer to link to each other with the stepless speed variator system of driving motor with motor.Its transmission principle is evenly to change alternating current generator stator line frequency, then can change the synchronous rotational speed of motor smoothly.This can be drawn by the rotating speed formula of alternating current generator, promptly N=(60f)/(P) (1-S) wherein N be that rotating speed, the f of motor is that stator line frequency, P are that magnetic pole logarithm, S are revolutional slip.Transducer itself has speed measuring device and digital display device, can show regulating frequency automatically, perhaps utilizes the jack speed pickup that can link to each other with microcomputer can utilize frequency converter it is input in the computing machine with the f table.This speed change system is speed change smoothly, and gear ratio is up to more than 100, and speed change precision height.Shaft of motor is vertical state, and rotates synchronously by shaft joint drive transmission shaft.The end of rotating shaft is fixed with the rotating disk of centrifugal mechanism, and it can adopt web member fastening or connect with keyway type.This rotating disk is horizontal plectane, and the surface is provided with the bar shaped feather key of the some radial protrusions that preferably are connected as a single entity with it, and its cross sectional shape has multiple preferably rectangle, and its number is preferably six and evenly arranges.Every feather key top all is provided with a vertical slide block, its bottom is preferably crossed center line and is provided with the radially keyway that is complementary with protruding feather key, both cooperations can not only make rotating disk drive the slide block rotation, and slide block is radially slided at action of centrifugal force lower edge feather key.Inside and outside two vertical planes of this slide block are arc surface, are collected at and can form a hollow cylinder together, and the lip of tested oil sealing promptly is enclosed within on its outer cylinder.Can prepare several groups of slide blocks according to different quality, select during for measurement.The lower surface of oil sealing places on the horizontal annular backing plate of rotating disk top, the working diameter that ring diameter is a bit larger tham tested oil sealing in it, and the outer shroud of backing plate links to each other with the bearing of fixing.The preferably several annular slabs of this backing plate overlap, and make the internal diameter of backing plate variable to enlarge measurement range.Several horizontal pressure foots are set in the upper surface of oil sealing are preferably three, its end that stretches to the axle center surpasses the sealing ring outer shroud slightly and pushes down it, makes it not to be subjected to displacement in measurement, does not also influence the expansion of sealing ring lip.This pressing plate also is fixed on the bearing by web member, preferably on the top of bearing.This bearing can be a framed structure, also can be columnar structured, and their bottoms all are provided with the outer flange, are fixed on the fixed object of relative rotating disk by web member, for example can be fixed on this instrument and be equipped with on the housing of power system.Also being provided with warning system in this housing is warning circuit, sound light control circuit preferably, and it is by sound light control circuit plate, bulb, acoustics, the ball bearing made using of composition.Two electric contacts of its adjustable positions place on the pressing plate or by the magnetic force gauge stand and are fixed on the work top, equal the radius of clean-up of tested oil sealing with the distance of center line.When slide block slides into when contacting simultaneously with two contacts by regulating stepless speed variator system, foregoing circuit promptly by the conducting of metal slide block, work simultaneously by acoustics and bulb, reminds people record data f value at this moment.Calculate the rotational speed N of motor by N=(60f)/(P) (1-S) (P, S are the intrinsic parameter of motor), converse angular velocity W by N by formula W=(π N)/30 again, then substitution φ
Method=-mw
2In the r formula, in this dynamics formula, φ
MethodFor normal inertial force is a centrifugal force, m is that centrifugal elements is the quality of slide block group, and r is the centrifugal radius of centrifugal elements, and it can be counted from the center of gravity of slide block, and it is that m acts on the particle on the center of gravity that whole slide block can be regarded quality as.Total go out the centrifugal force of slide block through artificial or COMPUTER CALCULATION, be exactly the size of its numerical value oil sealing radial force.The utility model is the radial force that the centrifugal force that utilizes the dynamics rotating object to produce comes the balance oil sealing, thereby realizes the tolerance of oil sealing radial force.
Drawing is described as follows:
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 be among Fig. 1 A to view.
Fig. 3 is a b-b profile among Fig. 1.
Fig. 4 is the centrifugal slider test front and back locations drawing at the whole story.
The utility model is described in further detail to utilize the example shown in the accompanying drawing.In oil sealing radial force dynamic measuring instrument illustrated in figures 1 and 2, the transversal section is in the foursquare cube housing 13, and the bottom is equipped with and stepless change transducer 1(VT-130G
1-4015 or VT-BOG
1-4035) power of Xiang Lianing is the threephase asynchronous 12 of 0.75～2.2KW.Its rotating shaft 21 is provided with shaft coupling 11, by this shaft coupling rotating shaft is connected with transmission shaft 21.It is taper that this transmission shaft passes bearing 9 ends that are fixed on centre, housing upper end, and the taper top is provided with the screw rod that combines as a whole with it, and this screw rod is provided with the nut 22 that is engaged with.The through hole at rotating disk 7 middle parts is a bellmouth, and the cone of itself and transmission shaft end is complementary.This horizontally disposed disc surfaces is provided with six bar shaped feather keys 4 of evenly radially arranging that are connected as a single entity with it, and its cross section is a rectangle as shown in Figure 3.Each feather key top all is provided with a vertical centrifugal slider 2, and its bottom was that center line is provided with the radially keyway that is complementary with protruding feather key.In Fig. 2 and centrifugal slider schematic top plan view shown in Figure 4, inside and outside two vertical planes of centrifugal slider are arc surface, are collected at and form a hollow cylinder together.In Fig. 1 and Fig. 2, the annular backing plate 19 that is equipped with tested oil sealing 6 above places on the hold-down support 8 again, the flange that this cylindrical shape bearing base is provided with extension by screw retention on the housing end face.The bearing top is fixed with three pressing plates 5 by bolt 3, also is provided with digital processing mechanism 10 and sound light control circuit plate 16 on the interlayer of establishing in housing 15, and coupled bulb 18 is located at respectively on the through hole of housing side plate 14 with electric bell 17.Two contacts 20 on this circuit place on the pressing plate, and the distance of they and center line equals the radius of clean-up of tested oil sealing.
The utility model has following advantage compared to existing technology: simple in structure, easy to manufacturely can realize the radial load kinetic measurement under simulation oil sealing work state, and it is little to power and actual error to record oil sealing. This device is highly suitable for quoting microcomputer, realizes that computer calculates and measures.
Claims (4)
1, a kind of oil sealing radial force dynamic measuring instrument that is used to measure the following in working order radial force of oil sealing sealing lip, it is characterized in that: motor 12 its vertical rotation axiss that link to each other with stepless speed variator system transducer 1 link to each other by the transmission shaft 21 that shaft joint 11 and end are fixed on rotating disk 7, radially be provided with the bar shaped feather key 4 of some projectioies on the rotating disk, vertically be provided with the centrifugal slider 2 of the spill keyway that bottom and feather key be complementary on every feather key, its inside and outside two vertical planes are arc surface, be collected at and form a hollow cylinder together, coaxial with it but have the horizontal annular plate mat plate 19 of certain interval to be positioned at above the rotating disk in its outside, and maintain static by bearing 8, establish in addition the contact 20 of warning circuit in the outside of slide block group, the distance of itself and axis equals the oil sealing radius of clean-up.
2, oil sealing radial force dynamic measuring instrument according to claim 1, it is characterized in that: the cross section of feather key is a rectangle.
3, oil sealing radial force dynamic measuring instrument according to claim 1 and 2, it is characterized in that: centrifugal slider is six.
4, oil sealing radial force dynamic measuring instrument according to claim 3, it is characterized in that: warning circuit is a sound light control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217115 CN2049774U (en) | 1988-11-25 | 1988-11-25 | Dynamic measurer for oil seal radical force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217115 CN2049774U (en) | 1988-11-25 | 1988-11-25 | Dynamic measurer for oil seal radical force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2049774U true CN2049774U (en) | 1989-12-20 |
Family
ID=4849681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88217115 Withdrawn CN2049774U (en) | 1988-11-25 | 1988-11-25 | Dynamic measurer for oil seal radical force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2049774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963535A (en) * | 2010-09-07 | 2011-02-02 | 青岛开世密封工业有限公司 | Radial force measurement instrument and method for measuring radial force value of lip-shaped sealing ring thereof |
-
1988
- 1988-11-25 CN CN 88217115 patent/CN2049774U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963535A (en) * | 2010-09-07 | 2011-02-02 | 青岛开世密封工业有限公司 | Radial force measurement instrument and method for measuring radial force value of lip-shaped sealing ring thereof |
| CN101963535B (en) * | 2010-09-07 | 2012-12-05 | 青岛开世密封工业有限公司 | Radial force measurement method for measuring radial force value of lip-shaped sealing ring thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |