CN101995335B

CN101995335B - Tightness self-regulating rotating mechanism of bearing performance precision detection instrument

Info

Publication number: CN101995335B
Application number: CN2009100130517A
Authority: CN
Inventors: 钱志军
Original assignee: Dalian Huakong Industrial Equipment Co Ltd
Current assignee: Dalian Huakong Industrial Equipment Co Ltd
Priority date: 2009-08-08
Filing date: 2009-08-08
Publication date: 2012-04-18
Anticipated expiration: 2029-08-08
Also published as: CN101995335A

Abstract

The invention relates to a tightness self-regulating rotating mechanism of a bearing performance precision detection instrument, which comprises a direct current brushless motor 19-1 and a tensioning air spring. The tightness self-regulating rotating mechanism is characterized in that the direct current brushless motor 19-1 and a driving wheel 19-2 are fixed together, the driving wheel 19-2 is movably arranged on a driving wheel shaft 20, the driving wheel shaft 20 is fixedly arranged on a left clamp plate 18 and a right clamp plate 21, the middle sections of the left clamp plate 18 and the right clamp plate 21 are respectively and fixedly provided with a centering shaft 17, two swinging arms 15 are movably arranged on each centering shaft 17 by a fourth bearing 31, a support shaft 16 is movably arranged in the middle of the swinging arms 15 by a third bearing 30, the middle of the support shaft 16 is movably provided with a support rod 26, the support rod 26 is connected with one end of the tensioning air spring 9, the other end of the tensioning air spring 9 is fixed on a fixed air cylinder seat 6, and the fixed air cylinder seat 6 is movably arranged on a fixed air cylinder shaft through a fixed air cylinder sleeve 8. The tightness self-regulating rotating mechanism realizes high-precision detection on the axial play, the assembly height and the end surface jumping of bearings, realizes the rotating kinetic energy required by the detection and can simulate real operation to achieve the full automation of the detection process.

Description

Bearing performance accurate detector tightness self-regulated rotating mechanism

Technical field

The invention belongs to the bearing detector, particularly a kind of bearing performance accurate detector tightness self-regulated rotating mechanism.

Background technology

The end-play of bearing is one of key index parameter of rolling bearing, and so-called inner play is the play amount between bearing foreign steamer, interior wheel, steel ball.Amount of exercise when general fixing interior wheel moves the foreign steamer above-below direction calls end-play, and the amount of exercise during the left and right directions motion is called end-play.In bearing operation, the size of inner play is the principal element of performances such as side-to-side vibrations, noise, heating, fatigue lifetime and running accuracy.End surface full jumping is the shape error of the whole end face of bearing and to the concentrated expression of the verticality of datum axis.Especially in the bearing of railway freight-car and high-speed railway train uses; Because of vehicle speed very fast; Axletree holds and generally bears big load; Bearing accuracy requires to be controlled in the 0.01mm, surpasses this precision like bearing and will cause bearing spot corrosion to occur, peel off and catastrophic failure such as roller fragmentation, is prone to have an accident more.Therefore before railway freight-car and the assembling of high-speed railway train bearing, must utilize internal space ring and external space ring to be adjusted to the play of diagonal angle contact ball bearing, make it the preload that reaches desirable.Make the rotation of testee (bearing) at present, mainly contain two kinds of methods: the one, lean on manpower, moving with hand rubbing, can make the bearing rotational speed inhomogeneous like this, do not reach unification yet, and main be that speed does not reach request for utilization, accuracy of detection is low.This method can consume sizable human resources.The 2nd, lean on threephase asynchronous to drive, like this,, can reach ask for something though accomplished adjustable-speed, be restricted just installing, taken a large amount of spaces, simultaneously also complicacy very of coupling arrangement.Increased the failure rate in the equipment operation.

Summary of the invention

The objective of the invention is to overcome above-mentioned technical deficiency, a kind of labour intensity that reduces is provided, improve measuring accuracy, adjustable-speed, it is little to take up space, the bearing performance accurate detector tightness self-regulated rotating mechanism that operation troubles is few.

The technical scheme that technical solution problem of the present invention is adopted is; A kind of bearing performance accurate detector tightness self-regulated rotating mechanism comprises dc brushless motor and tensioning air spring, is characterized in that dc brushless motor and driving wheel are fixed together; Driving wheel is contained on the live axle versatilely; Live axle is installed on left clamping plate and the right clamping plate, is connected the location with three locating shafts with a support bar between left clamping plate and the right clamping plate, and in the centre location-plate is housed; Left side clamping plate and right clamping plate right-hand member fixedly are equipped with driven shaft up and down, with bearing one engaged wheel are housed versatilely on the driven shaft; At left clamping plate and right clamping plate stage casing a centration axis is housed fixedly also; On centration axis, adorn two swing arms versatilely, with bearing three back shaft is housed versatilely in the middle of the swing arm, pole is housed to the back shaft intermediate active with bearing four; Pole is connected with tensioning air spring one end; The tensioning air spring other end is fixed on fixedly on the cylinder block, and fixedly cylinder block is contained in fixedly on the cylinder axis with the fixed air cylinder sleeve versatilely, and fixedly cylinder axis is fixed on left clamping plate and the right clamping plate; The swing arm right-hand member is fixed a tension shaft, and tension shaft is equipped with expansion tightening wheel versatilely with bearing three; The roller of driving wheel, engaged wheel and expansion tightening wheel is all processed the serrate face; The adhesive tape serrated face is processed in the inside of adhesive tape.

The invention has the beneficial effects as follows: utilize this automatically adjustment dial the detection of rotation mechanism to bearing end-play, assembling height and face runout precision, improve and guarantee accuracy of detection, got rid of artificial factor; Reduce labour intensity, improved detection efficiency; Make detector can show testing result in real time, it is qualified to judge whether automatically, has realized the whole robotizations that detect.Particularly, improved the unimpeded of traffic safety and railway traffic to the detection of the bearing that uses on railway freight-car and the high-speed railway train.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is a bearing performance accurate detector tightness self-regulated rotating mechanism front view;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the driving device component front view of Fig. 1;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the A-A sectional view of Fig. 2.

Among the figure: 1-promotes cylinder rod; 2-bolt bearing pin; The 3-support; The 4-push pedal; The 5-support bar; 6-is cylinder block fixedly; 7-is cylinder axis fixedly; 8-fixed air cylinder sleeve; 9-tensioning air spring; The 10-location-plate; The 11-engaged wheel; The 12-locating shaft; The 13-tension shaft; The 14-expansion tightening wheel; The 15-swing arm; The 16-back shaft; The 17-centration axis; 18-left side clamping plate; The 19-drive unit; The 19-1-dc brushless motor; The 19-2-driving wheel; The 20-live axle; The right clamping plate of 21-; 22-bolt one; 23-bolt two; The 24-nut; The 25-compression plate; 26-pole; The 27-driven shaft; 28-bearing one; 29-bearing two; 30-bearing three; 31-bearing four; The 32-location-plate; The 33-pressing plate; The 34-adhesive tape; 34-1-adhesive tape serrated face; The 35-measured bearing; The 36-serrated face.

Embodiment

Embodiment, with reference to accompanying drawing, a kind of bearing performance accurate detector tightness self-regulated rotating mechanism; Comprise dc brushless motor 19-1 and tensioning air spring 9; Be characterized in that dc brushless motor 19-1 and driving wheel 19-2 are fixed together, driving wheel 19-2 is contained on the live axle 20 versatilely, and live axle 20 is installed on left clamping plate 18 and the right clamping plate 21; Be connected the location with three locating shafts 12 with a support bar 5 between left side clamping plate 18 and the right clamping plate 21; And a location-plate 10 is housed in the centre, left clamping plate 18 fixedly are equipped with driven shaft 27 up and down with right clamping plate 21 right-hand members, with bearing 1 engaged wheel 11 are housed versatilely on the driven shaft 27; With right clamping plate 21 stage casings a centration axis 17 is housed fixedly also at left clamping plate 18; On centration axis 17, adorn two swing arms 15 versatilely with bearing 4 31; With bearing 3 30 back shaft 16 is housed versatilely in the middle of the swing arm 15; Pole 26 is housed to back shaft 16 intermediate active, and pole 26 is connected with tensioning air spring 9 one ends, and tensioning air spring 9 other ends are fixed on fixedly on the cylinder block 6; Fixedly cylinder block 6 usefulness fixed air cylinder sleeves 8 are contained in fixedly on the cylinder axis 7 versatilely, and fixedly cylinder axis 7 is fixed on left clamping plate 18 and the right clamping plate 21; Swing arm 15 right-hand members are fixed a tension shaft 13, and tension shaft 13 usefulness bearings 2 29 are equipped with expansion tightening wheel 14 versatilely; The roller of driving wheel 19-2, engaged wheel 11 and expansion tightening wheel 14 is all processed serrate face 36; Adhesive tape serrated face 34-1 is processed in the inside of adhesive tape 34.Left side clamping plate 18 and the fixing push pedal 4 of right clamping plate 21 left ends are fixed together with bolt 1 between push pedal 4 and the support 3, and bolt bearing pin 2 is housed on the support 3, on bolt bearing pin 2, are equipped with and promote cylinder rod 1; Live axle 20 left ends are equipped with compression plate 25, and compression plate 25 usefulness bolts 2 23 are fixedly connected with left clamping plate 18, and are threaded with nut 24; Live axle 20 left ends are equipped with location-plate 32 in right clamping plate 21 inboards; Driven shaft 27 usefulness pressing plates 33 are through being bolted to left and right

sides clamping plate

18,21 terminations; The serrated face of establishing on adhesive tape serrated face 34-1 on the adhesive tape 34 and driving wheel 19-2, engaged wheel 11 and the expansion tightening wheel 14 36 is meshed, and prevents the sideslip that is in operation; Adhesive tape 34 contacts with measured bearing 35.

The principle of work of this structure is; The acting force that adopts tensioning air spring 9 to produce; Can adjust the tightness of adhesive tape 34 automatically according to (through the promoting cylinder rod 1) amount of force that promotes cylinder, when reaching suitable elasticity; Dc brushless motor 19-1 on the location-plate 10 in the travel switch of the dress meeting automatically controlled actuating device 19 rotates, and through driving wheel 19-2, adhesive tape 34, engaged wheel 11 and expansion tightening wheel 14 rotations; Under the effect that promotes cylinder, entire mechanism is stretched out to the right, and adhesive tape 34 caves inward under measured bearing 2 35 effects; Expansion tightening wheel 14, swing arm 15 are that the center of circle rotates counterclockwise with centration axis 17 at this moment, will make tensioning air spring 9 make its compression like this, because the effect of tensioning air spring 9; Adhesive tape 34 contacts with measured bearing 35 all the time; Can adjust the adhesive tape elasticity automatically, and, realize detecting required rotation function and can simulate true the operation automatically through the rotation of the driving wheel 19-2 of the switch accessory drive 19 of dress on location-plate 10; Reach the whole robotizations of testing process, carried out each item accuracy detection in real time.

Claims

1. bearing performance accurate detector tightness self-regulated rotating mechanism; Comprise dc brushless motor (19-1) and tensioning air spring (9); It is characterized in that dc brushless motor (19-1) and driving wheel (19-2) are fixed together; Driving wheel (19-2) is contained on the live axle (20) versatilely; Live axle (20) is installed on train wheel bridge (18) and the lower plate (21), is connected the location with three locating shafts (12) with a support bar (5) between train wheel bridge (18) and the lower plate (21), and in the centre location-plate (10) is housed; Train wheel bridge (18) and lower plate (21) lower end fixedly are equipped with driven shaft (27) up and down, and driven shaft (27) is gone up and with bearing one (28) engaged wheel (11) is housed versatilely; At train wheel bridge (18) and lower plate (21) stage casing a centration axis (17) is housed fixedly also; Upward adorn two swing arms (15) versatilely in centration axis (17) with bearing four (31); With bearing three (30) back shaft (16) is housed versatilely in the middle of the swing arm (15); Pole (26) is housed to back shaft (16) intermediate active, and pole (26) is connected with tensioning air spring (9) one ends, and tensioning air spring (9) other end is fixed on fixedly on the cylinder block (6); Fixedly cylinder block (6) is contained in fixedly on the cylinder axis (7) with fixed air cylinder sleeve (8) versatilely, and fixedly cylinder axis (7) is fixed on train wheel bridge (18) and the lower plate (21); A tension shaft (13) is fixed in swing arm (15) lower end, and tension shaft (13) is equipped with expansion tightening wheel (14) versatilely with bearing two (29); The serrated face of establishing on adhesive tape serrated face (34-1) on the adhesive tape (34) and driving wheel (19-2), engaged wheel (11) and the expansion tightening wheel (14) (36) is meshed.

2. bearing performance accurate detector tightness self-regulated rotating mechanism according to claim 1 is characterized in that the roller of driving wheel (19-2), engaged wheel (11) and expansion tightening wheel (14) is all processed serrated face (36).