CN113068428B - Su series aircraft spherical bearing axial clearance detects isolated plant - Google Patents

Su series aircraft spherical bearing axial clearance detects isolated plant Download PDF

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Publication number
CN113068428B
CN113068428B CN200910122116.1A CN200910122116A CN113068428B CN 113068428 B CN113068428 B CN 113068428B CN 200910122116 A CN200910122116 A CN 200910122116A CN 113068428 B CN113068428 B CN 113068428B
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spherical bearing
axial clearance
rod
tension
fixed
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徐学仓
汤忠苗
汪泽银
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5720 Factory Of Pla
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5720 Factory Of Pla
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Abstract

The invention discloses a special device for detecting axial clearance of a spherical bearing of a Su-series airplane piston rod, which comprises a bottom plate, a supporting seat, a tension and compression mechanism, a drag hook, a positioning pull rod and a rod dial indicator, wherein the positioning pull rod penetrates through a middle hole of the spherical bearing and is fixed on the supporting seat, the rod dial indicator is fixed by a magnetic meter frame, the tension and the compression are adjusted, and the axial clearance of the spherical bearing can be detected. The device solves the problem that when the piston rod spherical bearing is repaired, the existing finished spherical bearing is simply replaced by purchasing, and the reliability of the product and the safety of airplane parts are ensured. The measuring method is simple, convenient and reliable, and has great popularization value.

Description

Su series aircraft spherical bearing axial clearance detects isolated plant
Technical Field
The invention belongs to the technical field of aviation bearing detection, and relates to a special device for detecting axial clearance of a spherical bearing of a Su-series airplane piston rod.
Background
When the Su-series airplane is repaired and maintained, the axial clearance of the piston rod spherical bearing needs to be detected to judge whether the piston rod spherical bearing meets the use requirement, the piston rod spherical bearing is assembled with the spherical bearing and then is required to rotate flexibly and universally, the precision is high, the clearance is small, and the spherical bearing is not allowed to have 0.01 displacement under the condition of loading 10N +/-0.5N.
When this kind of piston rod spherical bearing is repaired in present mill, only carry out simple change through purchasing current finished product spherical bearing outward, can not accurately know its clearance, also do not have this kind of detection device, can not reach the autonomic repair demand, increased aircraft repair cost. Therefore, it is very necessary to design a special device for detecting the axial clearance of the soviet-series airplane spherical bearing.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an axial clearance detector for a spherical bearing, which is used for detecting the axial direction of a Su series airplane piston rod after the spherical bearing is pressed. The method has the characteristics of convenient and simple operation and high measurement precision. The device measures the loading force by using the pressure sensor, measures the displacement by using the dial indicator, and simultaneously ensures the requirements of the loading force and the displacement of 0.01.
The inspection instrument is about 280mm long, 200mm wide and 310mm high, and is formed by pressing a bottom plate, a supporting spherical bearing, two upright posts and four pressing plates around the bearing by a supporting seat, wherein a supporting plate is used for supporting a tension-compression screw rod and fixing the tension-compression screw rod by a screw key so that the tension-compression screw rod only moves up and down without rotating, a tension sensor is used for measuring loading force, a drag hook, a positioning pull rod, a rod dial indicator, a measuring gasket and an instrument box are used for measuring the size phi 42 mm-phi 75mm of the bearing; the bearing be fixed in the intermediate position of bottom plate with the bolt, two stands and the both sides of upper supporting plate with the nut fixed in bottom plate draw the pressure screw rod to pass the upper supporting plate through the screw key spacing, adjust upper and lower position with the nut, draw and press and connect tension sensor, drag hook and location pull rod and pole thick stick for the dial indicator measurement gasket below the screw rod, tension sensor's signal is exported the instrument box by the circuit.
When the measuring device is used, the positioning pull rod penetrates through the middle hole of the spherical bearing and is fixed on the supporting seat, different pull rods are selected according to different bearings, the rod dial indicator is fixed by the magnetic meter frame, and the contact is placed on the measuring gasket. The up-down position is adjusted through the nut, the pulling pressure is displayed on the instrument box, the up-down gap is directly read through the lever dial indicator, and finally the radial gap is obtained.
After the spherical bearing axial clearance detector is adopted, the axial clearance of the spherical bearing can be quantitatively detected in the process of maintaining the products, the reliability of the products and the safety of airplane parts are ensured, and the measuring method is simple, convenient and reliable.
Drawings
FIG. 1 apparatus Structure
FIG. 2 apparatus Assembly drawing
FIG. 3 illustrates the manufacturing pattern of the supporting base
FIG. 4 support plate manufacturing pattern
FIG. 5 drawing hook manufacturing pattern
Detailed Description
The following describes the axial clearance detecting device of the spherical bearing with reference to the schematic diagram.
A special device for detecting axial clearance of a spherical bearing comprises a bottom plate 1, a supporting seat 2, a tension and compression mechanism 6, a drag hook 9, a positioning pull rod 10 and a rod dial indicator 11. The tension and compression mechanism 6 comprises a screw rod 15, a screw key block 7 and a key groove matched with the screw rod and the screw key block, a compression handle 16, a tension sensor 8 and a pressure display instrument box 12.
The supporting seat 2 fixes the bottom plate by using bolts, the four pressing plates 4 are pressed around the bearing, the two upright posts 3 and the upper supporting plate are fixed on two sides of the bottom plate by using nuts, the tension and compression screw rod 15 is in threaded connection with the pressurizing handle 16 and the tension sensor 8, the tension force is displayed on the instrument box 12, and the drag hook 9 is in threaded connection with the tension sensor 8.
The bar dial indicator 11 is fixed by a magnetic meter frame, the positioning pull rod 10 penetrates through a middle hole of a spherical bearing fixed on the supporting seat and is fixed by a measuring gasket 14 and a nut, the positioning pull rod 10 is connected with the drag hook 9 in a T-shaped mode, and a contact of the bar dial indicator is placed on the measuring gasket 14.
During the use, bearing 2 with the intermediate position of bolt fastening in bottom plate 1, two stands 3 and upper supporting plate 5 are fixed in the both sides of bottom plate 1 with the nut, draw pressure screw rod 6 to pass upper supporting plate and pass through 5 spacing through screw key 7, adjust upper and lower position with pressurization handle 16, draw pressure screw rod 6 below connect tension sensor 8, drag hook 9 and location pull rod 10 and the 11 for measuring gaskets 13 of pole thick stick percentage table, tension sensor 8's signal is exported instrument box 12 by the circuit.
The positioning pull rod 10 passes through the middle hole of the spherical bearing and is fixed on the supporting seat 2, the lever dial indicator 11 is fixed by a magnetic meter frame, and a contact is placed on the measuring gasket 13. The up-down position is adjusted through the nut, the pulling pressure is displayed on the instrument box 12, the up-down gap directly reads delta through the lever dial indicator 11, and delta is the axial gap.
Detecting the radial clearance: r is the theoretical spherical radius, delta is the measured displacement, delta is the radial clearance, then
Figure BBM2021050701630000031
The radial clearance delta is obtained by simply converting the axial clearance delta.

Claims (1)

1. The utility model provides a soviet series aircraft spherical bearing axial clearance detects isolated plant, includes bottom plate (1), bearing (2), draws and presses mechanism (6), drag hook (9), location pull rod (10), axial clearance measuring rod percentage table (11), its characterized in that: the tension and compression mechanism (6) comprises a screw rod (15), a screw key block (7) and a key groove matched with the screw rod, a pressure applying handle (16), a tension sensor (8) and a pressure display instrument box (12).
The supporting seat (2) is fixed in the middle of the bottom plate (1) through bolts, the four pressing plates (4) are pressed around the bearing, the two upright columns (3) and the upper supporting plate (5) are fixed on the two sides of the bottom plate (1) through nuts, the tension and compression screw (15) is in threaded connection with the pressure applying handle (16) and the tension sensor (8), the tension and compression force is displayed on the pressure display instrument box (12), and the drag hook (9) is in threaded connection with the tension sensor (8).
The axial clearance detection rod dial indicator (11) is fixed by a magnetic meter frame, the positioning pull rod (10) penetrates through a spherical bearing middle hole fixed on the supporting seat (2) and is fixed with a nut through a measurement gasket (14), the positioning pull rod (10) is connected with the draw hook (9) in a T shape, and a contact of the axial clearance detection rod dial indicator (11) is placed on the measurement gasket (14).
CN200910122116.1A 2009-07-31 2009-07-31 Su series aircraft spherical bearing axial clearance detects isolated plant Active CN113068428B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910122116.1A CN113068428B (en) 2009-07-31 2009-07-31 Su series aircraft spherical bearing axial clearance detects isolated plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910122116.1A CN113068428B (en) 2009-07-31 2009-07-31 Su series aircraft spherical bearing axial clearance detects isolated plant

Publications (1)

Publication Number Publication Date
CN113068428B true CN113068428B (en) 2014-04-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109405714A (en) * 2018-12-13 2019-03-01 哈尔滨电气动力装备有限公司 Reactor coolant pump thrust disc measurement of fit clearance device
CN109470119A (en) * 2017-09-08 2019-03-15 科华控股股份有限公司 A kind of special gauge of volute end flanges medial slope and datum level distance in hole
CN109737908A (en) * 2019-03-11 2019-05-10 北京星际荣耀空间科技有限公司 A kind of displacement measuring device of turbine pump assembly bearing axial direction
CN110203419A (en) * 2019-05-29 2019-09-06 陕西飞机工业(集团)有限公司 A kind of airplane throttle rod force measuring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109470119A (en) * 2017-09-08 2019-03-15 科华控股股份有限公司 A kind of special gauge of volute end flanges medial slope and datum level distance in hole
CN109405714A (en) * 2018-12-13 2019-03-01 哈尔滨电气动力装备有限公司 Reactor coolant pump thrust disc measurement of fit clearance device
CN109737908A (en) * 2019-03-11 2019-05-10 北京星际荣耀空间科技有限公司 A kind of displacement measuring device of turbine pump assembly bearing axial direction
CN110203419A (en) * 2019-05-29 2019-09-06 陕西飞机工业(集团)有限公司 A kind of airplane throttle rod force measuring device
CN110203419B (en) * 2019-05-29 2022-08-05 陕西飞机工业(集团)有限公司 Aircraft accelerator lever force measuring device

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