Be used for the right rolling bearing running-in machine of railway freight-car wheel
The present invention relates to the railway freight-car wheel rolling bearing is press-fited running-in device.
The railway freight-car wheel press-fits rolling bearing to the two ends axle journal and must carry out running-in test, original running-in test equipment adopts friction wheel to drive vehicle wheel rim, make whole the wheel to whole rotations (220 rev/mins), the bearing shell has a pair of hold down gag to be fixed, it is produced relative rotation, detect it with the far infrared temperature measurer and produce the temperature (＜60 ℃) that rises.This equipment has 3 deficiencies: the one, and it is very big that workpiece object participates in the wearing and tearing of rotation friction wheel, changes frequent; The 2nd, consumption of power is big; The 3rd, versatility is poor, and different gauge wheel set bearings can not be worked on same equipment.
Summary of the invention
The invention provides a kind of right rolling bearing running-in machine of railway freight-car wheel that is used for, it is low to have consumption of power, and the friction wheel wearing and tearing are few, the advantage that security is good.
The present invention be achieved in that it comprise support, be fixed on the support be used for support wheel guide rail and be used for the right top wheel oil cylinder of lifting wheel, the running-in machine that wheel carried out break-in to last rolling bearing with and be used for detecting the infrared radiation thermometer of rolling bearing temperature, running-in machine is symmetricly set on the support two ends; Each running-in machine comprises motor, transmission device and friction drive wheel, motor, transmission device and friction drive wheel are fixed on the rotary support, the rotary support outer end is connected with frame on being fixed on support by rotating shaft, the inner is supported on the frame, when wheel to by top wheel oil cylinder jack-up to the right rolling bearing of operating position hour wheel with friction drive wheel jack-up, make the weight that rotary support the inner is born be applied on the rolling bearing by friction drive wheel; Infrared radiation thermometer is fixed on the rotary support by mounting rail.The deadweight of dependence running-in machine, roll extrusion friction wheel and rolling bearing shell be flexible contact and drives the rolling bearing rotation, and wheel does not participate in rotating to outer other parts of rolling bearing only, and workpiece object participation rotating weight alleviates greatly, so consumption of power reduces greatly, the friction wheel wearing and tearing also significantly reduce.
In order to increase frictional force, each running-in machine is provided with two friction drive wheels with fast equidirectional rotation at least.
Right for the wheel that can be fit to different size, support is provided with the guide rail of several different gauges; Have at least the frame and the support of an end running-in machine to be slidingly connected, support is provided with the adjusting device of regulating described frame displacement.By regulating the position of frame on support, can be fit to different gauge wheels to the rolling bearing break-in.
Running-in machine of the present invention and frame flexibly connect, and running-in machine relies on deadweight and rolling bearing shell flexibility to contact, and workpiece object participates in rotating weight and alleviates greatly, so consumption of power reduces greatly, the friction wheel wearing and tearing also significantly reduce; The frame and the support of running-in machine are slidingly connected, and can regulate displacement according to different gauges, and the wheel that can be fit to different size is to the rolling bearing break-in, and the versatility of equipment is improved.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is along A-A line rotation cut-away view among Fig. 1.
Fig. 3 is the local enlarged diagram in B place among Fig. 2.
Among the above-mentioned figure, 1, motor, 2, small belt pulley, 3, V belt, 4, big belt pulley, 5,9, rolling bearing, 6,10, axle, 7,8, gear, 11, the friction drive, 12, rolling bearing, 13, wheel is right, 14, top wheel oil cylinder, 15a-c, track, 16, rotary support, 17, safety guard, 18, rotating shaft, 19, frame, 19a, slide unit, 20, slide unit press strip, 21, bolt, 22, the slide unit plate, 23, nut, 24, the slide unit oil cylinder, 25, the oil cylinder holder, 26, support, 27, far infrared temperature measurer, 28, adjustment screw, 29, chute.
The specific embodiment
As depicted in figs. 1 and 2, support 26 is provided with guide rail 15a, 15b and the 15c of three pairs of different gauges, and be used for 14, two of two right top wheel oil cylinders of lifting wheel wheel is installed on the frame 19 at support 26 two ends the running-in machine symmetry that the rolling bearing 12 on 13 carries out break-in; Frame 19 every end tops are provided with rotary support 16, and rotary support 16 outer ends are connected with frame 19 by rotating shaft 18, and the inner is supported on the frame 19.Each running-in machine comprises motor 1, transmission device and two flexible friction drives 11, transmission device is by belt pulley 2 and 4, belt 3, final drive shaft 6, gear 7 and 8 and output shaft 10 form, final drive shaft 6 and output shaft 10 are respectively by rolling bearing 5,9 are fixed on the rotary support 16, motor 1 is fixed on rotary support 16 belows, by belt pulley and belt and final drive shaft driving coupling, final drive shaft 6 is by gear 7,8 with two output shaft 10 driving coupling that are located at final drive shaft top, each friction drive wheel 11 is separately fixed on the output shaft 10, when wheel to 13 by top wheel oil cylinder 14 jack-up to the operating position hour wheel to last rolling bearing 12 with friction drive wheel 11 jack-up, make the weight that rotary support 16 the inners are born be applied on the rolling bearing 12 by friction drive wheel 11.Infrared radiation thermometer 27 is located at right rolling bearing 12 upper ends of wheel, is fixed on the rotary support 16 by mounting rail.Each running-in machine top is provided with safety guard 17.
For the ease of regulating the height of rotary support 16 the inners, frame 19 inboards are provided with adjustment screw 18, can regulate the height of rotary support 16 the inners on frame 19 by the height of rotation adjustment screw 28.
Support 26 is provided with the adjusting device of regulating two ends frame 19 displacements, this device comprises slide unit 19a and hydraulic jack 24, frame 19 bottoms are provided with slide unit 19a, the slide unit plate 22 that cooperates with slide unit 19a is arranged on the support 26, slide unit plate 22 is fixed on the support 26 by screw, slide unit 19a both sides have slide unit press strip 20 to be fixed on the slide unit plate 22 by bolt 21, gap between slide unit press strip 20 and the slide unit plate 22 forms chute 29, hydraulic jack 24 is fixed on the support 26 by oil cylinder holder 25, and oil cylinder piston is fixed on the frame 19 by nut 23.By hydraulic jack 24 slide unit 19a is moved in chute 29, can regulate the displacement of frame 19 on support 26, with the wheel that adapts to different size to break-in.
The present invention is like this work: be equipped with vehicles roll bearing 12 truck wheel to 13 along track 15, enter wheel oil cylinder 14 tops, top, top wheel oil cylinder with truck wheel to 13 slow jack-up to drive 11 belows that rub, starting two ends motor 1, by belt pulley 2, V belt 3, belt pulley 4, final drive shaft 6, gear 7 and 8 drives output shaft 10 and 11 rotations of friction drive, because transmission mechanism all is installed on the rotary support 16, rotary support 16 outer ends are fixed on rotating shaft 18, inner then be pressed on the shell of wheel to last rolling bearing 12 by friction drive 11, thus driven wheel is to the rotation of last rolling bearing.
Far infrared temperature probe 27 is equipped with on friction drive 11 next doors, detects vehicle rolling bearing hull-skin temperature, overtemperature alarm.
Different gauge wheels are to spurring Mobile Slide 19a by hydraulic jack 24, and making it reach institute must the gauge position.