CN102072711B

CN102072711B - Radial runout non-contact detecting device for rotation shaft system

Info

Publication number: CN102072711B
Application number: CN2010105451127A
Authority: CN
Inventors: 赵志巍
Original assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Current assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority date: 2010-11-16
Filing date: 2010-11-16
Publication date: 2012-04-11
Anticipated expiration: 2030-11-16
Also published as: CN102072711A

Abstract

A radial runout non-contact detecting device for a rotation shaft system belongs to the non-contact detecting device in the field of photoelectric detection technology. The invention solves the technical problems that the radial runout non-contact detecting device for a rotation shaft system is provided. The technical scheme comprises a first and a second element brackets, a first and a second indicator gratings, a first and a second receiving pipe circuit boards, a first and a second receiving pipes, a first and a second luminotrons, a first and a second luminotron circuit boards, a grating disc, a round holding bracket, a pressing cover, a main shaft, a first and second steel balls, a cylindrical holding bracket, a shaft sleeve, a base and a fixing platform. The first and the second element brackets are symmetrically arranged at both sides of the shaft system; the grating disc is fixedly connected with the main shaft and extends in the groove of the element brackets; the luminotrons, the receiving pipes, indicator gratings arranged on the element brackets are aligned at the gratings of the grating disc; the main shaft rotates to drive the grating disc for rotating; electrooptical signals are received in the receiving pipes; and the relative variation of two signal phases is the radial runout amount of the shaft system.

Description

A kind of non-contact detection device of rotary axis diameter run-out

Technical field

The invention belongs to a kind of rotary axis diameter run-out non-contact detection device that relates in the photoelectric detection technology field.

Background technology

The size of rotary axis diameter run-out has been represented the running accuracy of this system, so its detection accuracy is very important.

The prior art the most approaching with the present invention is the inductance amesdial that middle commercial weight appearance incorporated company produces, and be as shown in Figure 1.Comprise pedestal 1, axle sleeve 2, cylindrical shape retainer 3, first steel ball 4, main shaft 5, first screw 6, gland 7, annular retainer 8, second steel ball 9, stationary platform 10, second screw 11, the 3rd screw 12, mini-inductance measurement instrument probe 13.

Cylindrical shape retainer 3 inner hole sleeves that first steel ball 4 has been installed are contained on the external diameter of main shaft 5; The outside suit axle sleeve 2 of cylindrical shape retainer 3, the annular retainer 8 that second steel ball 9 has been installed is sleeved on the main shaft 5, and the lower end of cylindrical shape retainer 3 contacts with annular retainer 8; Both is interior through alignment; First steel ball 4 is tangent with the side of axle sleeve 2, and second steel ball 9 is tangent with axle sleeve 2 lower planes, and gland 7 is below held it at annular retainer 8; With first screw 6 gland 7 is fixed on the main shaft 5, forms rotary axis.Pedestal 1 is connected with axle sleeve 2 through the 3rd screw 12; Pedestal 1 is fixed on the stationary platform 10 through second screw 11; Main shaft 5 can freely rotate like this, and to be detected of mini-inductance measurement instrument probe 13 and main shaft 5 contacts, and the reading gauge outfit of inductance appearance is placed on the stationary platform 10; In 5 one weeks of rotary main shaft, on inductance amesdial, can read the numerical value of rotary axis diameter run-out.

The subject matter that this inductance amesdial exists is: this kind test is the contact test; To be detected mismachining tolerance influences testing result; So very high to be detected requirement on machining accuracy, increase difficulty of processing and processing cost, simultaneously because this detection is a contact detection; The probe of inductance amesdial stays cut on to be detected, be damage to detection faces.

Summary of the invention

In order to overcome the defective that prior art exists; Engagement shaft system surface when the objective of the invention is to detect the radial beat eccentricity of rotary axis; Deduct to be detected difficulty of processing and cost, adopted non-contact method to detect simultaneously, do not injured surface to be detected; Improve the accuracy that detects, a kind of rotary axis diameter run-out of ad hoc meter non-contact detection device.

The technical matters that the present invention will solve is: a kind of rotary axis diameter run-out non-contact detection device is provided.The technical scheme of technical solution problem is as shown in Figure 2, comprises the 4th screw 14, the first components and parts frame 15, first indication grating 16, the first receiving tube wiring board 17, the 5th screw 18, first receiving tube 19, first luminotron 20, the first luminotron wiring board 21, the 6th screw 22, ring gasket 23, trim ring 24, grating dish 25, the second luminotron wiring board 26, the 7th screw 27, the second receiving tube wiring board 28, the 8th screw 29, second receiving tube 30, second indication grating 31, second luminotron 32, the 9th screw 33, the second components and parts frame 34, the 3rd screw 35, annular retainer 36, gland 37, first screw 38, main shaft 39, first steel ball 40, cylindrical shape retainer 41, second steel ball 42, axle sleeve 43, pedestal 44, second screw 45, stationary platform 46.

The inner hole sleeve that the cylindrical shape retainer 41 of first steel ball 40 is housed is contained on the main shaft 39; The outside suit axle sleeve 43 of cylindrical shape retainer 41; Annular retainer 36 inner hole sleeves that second steel ball 42 is housed are contained in the bottom of main shaft 39; Gland 37, and is fixed on the main shaft 39 with first screw 38 below with its picking-up at annular retainer 36, thereby forms tested rotary axis.The 3rd screw 35 is fixed on tested rotary axis on the pedestal 44 through axle sleeve 43, and second screw 45 is fixed on pedestal 44 on the stationary platform 46, makes axle sleeve 43 fixed, and main shaft 39 can freely rotate; Grating dish 25 and main shaft 39 be coaxial to be installed on the shoulder of main shaft 39, loads onto ring gasket 23 above the grating dish 25, on ring gasket 23, pushes down with trim ring 24, uses screw-thread securing between trim ring 24 and the main shaft 39, and grating dish 25 is fixed tightly on the main shaft 39; The both sides that are installed in axle system that the first components and parts frame 15 and the second components and parts frame 34 are symmetrical with respect to main shaft 39 diameters; Described diameter symmetry is meant the line of centres of the first components and parts frame 15 and the second components and parts frame, 34 both width; Axle center through main shaft 39; The slot opening of these two framves is relative, and two fixing positions of components and parts frame can make grating dish 25 put in the components and parts frame and install in the groove of receiving tube and luminotron; All leave center pit on groove top arm on the first components and parts frame 15 and the second components and parts frame 34 and the underarm, this two hole is coaxial; Adjust the position of the first components and parts frame 15 and the second components and parts frame 34; Make the groove upper arm of the first components and parts frame 15 and center pit on the underarm and the grating center-aligned on the grating dish 25, make the groove upper arm of the second components and parts frame 34 and center pit on the underarm and the grating center-aligned on the grating dish 25; The first element device frame, 15 usefulness the 4th screw 14 is fixed on the stationary platform 46, and the second components and parts frame, 34 usefulness the 9th screw 33 is fixed on the stationary platform 46; First indication grating 16 sticks with glue on the lower surface of the top arm center pit of the first components and parts frame 15; First receiving tube 19 is welded on the first receiving tube wiring board 17; First receiving tube 19 is installed in the top arm center pit of the first components and parts frame 15; With the 5th screw 18 the first receiving tube wiring board 17 is fixed on the first components and parts frame 15, first luminotron 20 is welded on the first luminotron wiring board 21, first luminotron 20 is installed in the underarm center pit of the first components and parts frame 15; With the 6th screw 22 the first luminotron wiring board 21 is fixed on the first components and parts frame 15; Second indication grating 31 sticks with glue on the lower surface of the top arm center pit of the second components and parts frame 34, and second receiving tube 30 is welded on the second receiving tube wiring board 28, second receiving tube 30 is installed in the top arm center pit of the second components and parts frame 34; With the 8th screw 29 the second receiving tube wiring board 28 is fixed on the second components and parts frame 34; Second luminotron 32 is welded on the second luminotron wiring board 26, and second luminotron 32 is installed in the second components and parts frame, the 34 underarm center pits, with the 7th screw 27 the second luminotron wiring board 26 is fixed on the second components and parts frame 34.

Principle of work explanation: when main shaft 39 rotations; Drive grating dish 25 and main shaft 39 relative first indication gratings 16 and second indication grating, 31 coaxial rotation; First indication grating 16 and second indication grating, 31 same-phases are installed; Grating on the grating dish 25 that rotates and the first static indication grating 16 and the grating on second indication grating 31 produce the striped that light and shade replaces respectively; The continuous light that this striped makes first luminotron 20 and second luminotron 32 send respectively becomes the interrupted light that light and shade replaces, and is received by first receiving tube 19 and second receiving tube 30 respectively.When main shaft 39 drove grating dish 25 with main shaft 39 coaxial rotations, if the radial beat eccentricity of main shaft 39 is 0 o'clock, the phase relation of the photosignal that receives in first receiving tube 19 and second receiving tube 30 showed indeclinable phase relation on phasometer; Main shaft 39 rotates a circle, if when the radial beat eccentricity of main shaft 39 is e, the center of grating dish 25 rolling momentum also is e; First receiving tube 19 and second receiving tube 30 are arranged on the diameter two ends of grating dish 25, and the change amount signal that receives at first receiving tube 19 and second receiving tube, 30 places is e, measure the phase differential maximal value a of the photosignal that first receiving tube 19 and second receiving tube 30 receive with phasometer; This phase differential is that the offset of twice grating dish 25 brings; If the grating ruling radius of grating dish 25 is R, the grid stroke logarithm is m, and then the line cycle is 2 π R/m; A line periodic phase difference is 360 °, then 2e=2 π Ra/m/360 °

So Ra/m/360 ° of e=π (1)

Obtaining axle by (1) formula is radial beat eccentricity.

Description of drawings:

Fig. 1 is the structural representation of prior art;

Fig. 2 is a structural representation of the present invention.

Embodiment:

The present invention implements by structure shown in Figure 2.Wherein annular retainer 36, gland 37, first screw 38, main shaft 39, first steel ball 40, cylindrical shape retainer 41, second steel ball 42, axle sleeve 43 are tested rotary axis.

The 4th screw 14, the 5th screw 18, the 6th screw 22, the 7th screw 27, the 8th screw 29, the 9th screw 33, the 3rd screw 35, pedestal 44, second screw 45, stationary platform 46 all adopt Q235; The first components and parts frame 15, ring gasket 23, trim ring 24, the second components and parts frame 34 all adopt steel No. 45; The pedestal of first indication grating 16, grating dish 25, second indication grating 31 all adopts K9 glass; The first receiving tube wiring board 17, the first luminotron wiring board 21, the second luminotron wiring board 26, the second receiving tube wiring board 28 all adopt plastic plate; First receiving tube 19, first luminotron 20, second receiving tube 30, second luminotron 32 are produced for Honeywell company; Luminotron model SEP8505, receiving tube model SDP8405.

The inner hole sleeve that the cylindrical shape retainer 41 of first steel ball 40 is housed is contained on the main shaft 39; The outside suit axle sleeve 43 of cylindrical shape retainer 41; Annular retainer 36 inner hole sleeves that second steel ball 42 is housed are contained in the bottom of main shaft 39; Gland 37, is fixed on the main shaft 39 with first screw 38 below with its picking-up at annular retainer 36, thereby forms tested rotary axis.The 3rd screw 35 is fixed on tested rotary axis on the pedestal 44 through axle sleeve 43, and second screw 45 is fixed on pedestal 44 on the stationary platform 46, makes axle sleeve 43 fixed, and main shaft 39 can freely rotate; Grating dish 25 and main shaft 39 be coaxial to be installed on the shoulder of main shaft 39, loads onto ring gasket 23 above the grating dish 25, on ring gasket 23, pushes down with trim ring 24, uses screw-thread securing between trim ring 24 and the main shaft 39, and grating dish 25 is fixed tightly on the main shaft 39; The both sides that are installed in axle system that the first components and parts frame 15 and the second components and parts frame 34 are symmetrical with respect to main shaft 39 diameters; Described diameter symmetry is meant the line of centres of the first components and parts frame 15 and the second components and parts frame, 34 both width; Axle center through main shaft 39; The slot opening of these two framves is relative, and the first components and parts frame, 15 usefulness the 4th screw 14 is fixed on the stationary platform 46, and the second components and parts frame, 34 usefulness the 9th screw 33 is fixed on the stationary platform 46; Two fixing positions of components and parts frame can make grating dish 25 put in the element frame and install in the groove of receiving tube and luminotron; All leave center pit on groove top arm on the first components and parts frame 15 and the second components and parts frame 34 and the underarm, this two hole is coaxial, on the lower surface of the top arm center pit of the first components and parts frame 15; First indication grating 16 sticks with glue on the lower surface of the top arm center pit of the first components and parts frame 15; First receiving tube 19 is welded on the first receiving tube wiring board 17; First receiving tube 19 is installed in the top arm center pit of the first components and parts frame 15; With the 5th screw 18 the first receiving tube wiring board 17 is fixed on the first components and parts frame 15, first luminotron 20 is welded on the first luminotron wiring board 21, first luminotron 20 is installed in the underarm center pit of the first components and parts frame 15; With the 6th screw 22 the first luminotron wiring board 21 is fixed on the first components and parts frame 15; Second indication grating 31 sticks with glue on the lower surface of the top arm center pit of the second components and parts frame 34, and second receiving tube 30 is welded on the second receiving tube wiring board 28, second receiving tube 30 is installed in the top arm center pit of the second components and parts frame 34; With the 8th screw 29 the second receiving tube wiring board 28 is fixed on the second components and parts frame 34; Second luminotron 32 is welded on the second luminotron wiring board 26, and second luminotron 32 is installed in the second components and parts frame, the 34 underarm center pits, with the 7th screw 27 the second luminotron wiring board 26 is fixed on the second components and parts frame 34.

Main shaft 39 rotates a circle, and when the radial beat eccentricity of main shaft 39 was e, the center of grating dish 25 rolling momentum also was e; First receiving tube 19 and second receiving tube 30 are arranged on the diameter two ends of grating dish 25, and the change amount signal that receives at first receiving tube 19 and second receiving tube, 30 places is e, measure the phase differential maximal value a of the photosignal that first receiving tube 19 and second receiving tube 30 receive with phasometer; This phase differential is that the offset of twice grating dish 25 brings, and the grating ruling radius of establishing grating dish 25 is R, and the grid stroke logarithm is m; Then the line cycle is 2 π R/m, and a line periodic phase difference is 360 °, then e=π Ra/m/360 °; Like this, obtaining axle is radial beat eccentricity, engagement shaft system surface when having realized detecting the radial beat eccentricity of rotary axis; The difficulty of processing and the cost of detection faces have been deducted; Adopt non-contact method to detect simultaneously, do not injure surface to be detected, improve the accuracy that detects.

Claims

1. the non-contact detection device of a rotary axis diameter run-out comprises the 3rd screw (35), annular retainer (36), first screw (38), main shaft (39), first steel ball (40), cylindrical shape retainer (41), second steel ball (42), axle sleeve (43), pedestal (44), second screw (45), stationary platform (46); It is characterized in that also comprising the 4th screw (14); The first components and parts frame (15); First indication grating (16); The first receiving tube wiring board (17); The 5th screw (18); First receiving tube (19); First luminotron (20); The first luminotron wiring board (21); The 6th screw (22); Ring gasket (23); Trim ring (24); Grating dish (25); The second luminotron wiring board (26); The 7th screw (27); The second receiving tube wiring board (28); The 8th screw (29); Second receiving tube (30); Second indication grating (31); Second luminotron (32); The 9th screw (33); The second components and parts frame (34); Gland (37); The inner hole sleeve that the cylindrical shape retainer (41) of first steel ball (40) is housed is contained on the main shaft (39); The outside suit axle sleeve (43) of cylindrical shape retainer (41); Annular retainer (36) inner hole sleeve that second steel ball (42) is housed is contained in the bottom of main shaft (39); Gland (37), and is fixed on the main shaft (39) with first screw (38) below with its picking-up at annular retainer (36), forms tested rotary axis; The 3rd screw (35) is fixed on tested rotary axis on the pedestal (44) through axle sleeve (43), and second screw (45) is fixed on pedestal (44) on the stationary platform (46), makes axle sleeve (43) fixed, and main shaft (39) freely rotates; Grating dish (25) and main shaft (39) be coaxial to be installed on the shoulder of main shaft (39); Load onto ring gasket (23) above the grating dish (25); On ring gasket (23), push down, use screw-thread securing between trim ring (24) and the main shaft (39), grating dish (25) is fixed tightly on the main shaft (39) with trim ring (24); The both sides that are installed in axle system that the first components and parts frame (15) and the second components and parts frame (34) are symmetrical with respect to main shaft (39) diameter; Described diameter symmetry is meant the axle center of the line of centres of the first components and parts frame (15) and second both width of components and parts frame (34) through main shaft (39); The slot opening of these two framves is relative, and two fixing positions of components and parts frame can make grating dish (25) put in the components and parts frame and install in the groove of receiving tube and luminotron; All leave center pit on groove top arm on the first components and parts frame (15) and the second components and parts frame (34) and the underarm, this two hole is coaxial; Adjust the position of the first components and parts frame (15) and the second components and parts frame (34); Make the groove upper arm of the first components and parts frame (15) and the grating center-aligned on center pit on the underarm and the grating dish (25), make the groove upper arm of the second components and parts frame (34) and the grating center-aligned on center pit on the underarm and the grating dish (25); The first element device frame (15) is fixed on the stationary platform (46) with the 4th screw (14), and the second components and parts frame (34) is fixed on the stationary platform (46) with the 9th screw (33); First indication grating (16) sticks with glue on the lower surface of the top arm center pit of the first components and parts frame (15); First receiving tube (19) is welded on the first receiving tube wiring board (17); First receiving tube (19) is installed in the top arm center pit of the first components and parts frame (15); With the 5th screw (18) the first receiving tube wiring board (17) is fixed on the first components and parts frame (15); First luminotron (20) is welded on the first luminotron wiring board (21); First luminotron (20) is installed in the underarm center pit of the first components and parts frame (15), with the 6th screw (22) the first luminotron wiring board (21) is fixed on the first components and parts frame (15), second indication grating (31) sticks with glue on the lower surface of the top arm center pit of the second components and parts frame (34); Second receiving tube (30) is welded on the second receiving tube wiring board (28); Second receiving tube (30) is installed in the top arm center pit of the second components and parts frame (34), with the 8th screw (29) the second receiving tube wiring board (28) is fixed on the second components and parts frame (34), second luminotron (32) is welded on the second luminotron wiring board (26); Second luminotron (32) is installed in second components and parts frame (34) the underarm center pit, the second luminotron wiring board (26) is fixed on the second components and parts frame (34) with the 7th screw (27).