CN2189735Y

CN2189735Y - Bearing windage detecting instrument

Info

Publication number: CN2189735Y
Application number: CN 94226448
Authority: CN
Inventors: 王平
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-23
Filing date: 1994-03-23
Publication date: 1995-02-15
Anticipated expiration: 2004-03-23

Abstract

The utility model discloses a bearing windage detecting instrument which comprises, a detecting head and the supporting mechanism thereof, force detecting loading mechanism, an electromagnet operating mechanism and an electromagnetic vibrator. The force detecting loading mechanism comprises an upper and a lower heavy hammer levers, and an upper and a lower positioning handles; the upper and the lower heavy hammer levers are arrangedoppositely. The detecting head supporting mechanism comprises a spring double bracket which is composed of an upper and a lower spring pieces; a slide plate is adjusted at a vertical position, and a screw rod is adjusted and positioned. A dovetailed slide block which is horizontally adjusted by the detecting head is arranged on the spring double bracket, and the detecting head supporting mechanism is arranged on the box body of the detecting instrument. The electromagnet operating mechanism comprises two electromagnets, a small and big gears which are engaged with each other, and a rotating shifting block.

Description

Bearing windage detecting instrument

The utility model relates to a kind of bearing clearance detector, belongs to the test class of mechanical part.

The size of end-play directly influences this machine vibration of engineering goods between the Internal and external cycle of bearing and the middle rolling body thereof, beating of axle, rotate performances such as dirigibility, the instrument of accurately measuring bearing end-play is a Production of bearing, use one of indispensable means of producer, existing bearing clearance detector adopts cylinder air pressure that bearing is produced acting force and detects play, often because of air supply system air pressure change and piston, resistance differs between cylinder, thereby acting force also differs, make the play indicating value that records not accurate enough, this detector needs supporting feeder again, so equipment, operating cost is higher.

The purpose of this utility model provides the constant operational forces of a kind of employing and detects play, makes the bearing clearance detector that measurement is accurate, device is simple, operating cost is lower.

The purpose of this utility model realizes by following manner, adopts a pair of weight arm that bearing to be measured is applied constant force, replaces changing atmospheric pressure, improves accuracy of detection.

The utility model is used to measure bearing end-play, can survey bearing: internal diameter is 15-55mm, external diameter ≯ 120mm, and the error of indication ± 0,0005mm, repetitive error ± 0,0005mm do not need compressed gas source, the life-span is long, operating cost is low,

The embodiment of this detector is provided by appended accompanying drawing, accompanying drawing 1 is its dynamometry load mechanism principle schematic, Fig. 2 is a gauge head supporting mechanism diagrammatic cross-section, and Fig. 3 is the operation electriomagnet structural scheme of mechanism, below in conjunction with the description of drawings structure of the present utility model and the course of work.

With reference to accompanying drawing, this detector comprises gauge head and gauge head supporting mechanism, the dynamometry load mechanism, operation electriomagnet mechanism electromagnetic Vib. and other indispensable annexes, the dynamometry load mechanism comprises weight arm 1-1, last position fixing handle 1-3, lower heavy punch lever 1-5, following position fixing handle 1-4, on, the lower heavy punch lever is installed relatively, respectively with corresponding position fixing handle, chute links to each other, successively bearing is applied downwards, upward pressure, gauge head comprises horizontal position adjustment dovetail slide block 2-1, clock gauge, measuring staff, survey hook 2-9, the gauge head supporting mechanism comprises, following two spring leaf 2-5, the spring even component frame 2-2 that 2-6 forms, slide plate 2-3 is adjusted in the upright position, adjust and positioning screw 2-4, gauge head horizontal position adjustment dovetail slide block is contained on the spring even component frame 2-2, the gauge head supporting mechanism is contained on the detector casing 2-7, and electromagnetic operating mechanism comprises a left side, right two electromagnet 3-4,3-3, intermeshing pinion wheel 3-1, gear wheel 3-2, rotation shifting block 1-2, and electric switch, power supply, rotation shifting block 1-2 links to each other with the pinion drive axle.The course of work is that bearing inner race to be measured is enclosed within on the locator mandrel 2-8, adjust and survey hook 2-9 position, make locator mandrel 2-8, surveying hook 2-9 contacts under the inner ring respectively, top is with the solid bearing inner ring, press left side button, the left side electromagnet 3-4 adhesive of switching on, make that the large gear turn the small gear and go up transmission spindle, rotation shifting block 1-2 is rotated, depress the downforce that weight arm applies bearing downwards and eliminated the bearing first half to be measured outer ring, middle rolling body, gap between inner ring, clock gauge is harmonized after the zero-bit, left side electromagnet outage, loosen, the rotation shifting block resets, operation the right electromagnet 3-3, make the rotation shifting block upwards rotate jack-up and go up weight arm, the last thrust that the lower heavy punch lever applies bearing, make the gap at the bearing first half, and by shown in the clock gauge partially null value measure, for making in rolling body is fallen in the middle of the bearing, second circular arc bottom of trench of outer ring, so that record the play true value, this detector is equipped with electromagnetic vibrator 3-5, and electromagnetic vibrator 3-5 links to each other with the locator mandrel rear end of supporting the measured bearing inner ring, vibrates 1-1.5 second when the lower heavy punch lever upwards pushes away measured bearing.Be added with electromagnetic vibrator, improved measuring accuracy greatly, the same bearing of duplicate measurements 10 times, difference of reading are 0,0005mm.When the specification of bearing to be measured is not of uniform size, must adjust: 1, the upright position of gauge head supporting mechanism, this adjusts positioning screw 2-6 realization by turning, and this spring even component frame supports the guide rail defective of grinding, easily scrapping easy to wear, difficult that the gauge head mode has overcome the guide supporting mode; 2, the upper and lower position of rotation shifting block, this is undertaken by the bolt of adjusting on it; 3, upper and lower weight arm relative position, this is undertaken by adjusting the position of lever on position fixing handle place chute.

Claims

A kind of bearing clearance detector, comprise gauge head and gauge head supporting mechanism, survey and cut load mechanism, operation electriomagnet mechanism and electromagnetic vibrator, it is characterized in that described dynamometry load mechanism comprises weight arm (1-1), last position fixing handle (1-3), lower heavy punch lever (1-5), following position fixing handle (1-4), upper and lower weight arm (1-1), (1-3) installing relatively links to each other with corresponding position fixing handle, chute respectively; Described gauge head supporting mechanism comprises, following two spring leafs (2-5), (2-6) the spring even component frame (2-2) of Zu Chenging, slide plate (2-3) is adjusted in the upright position, adjust and positioning screw (2-4), gauge head horizontal position adjustment dovetail slide block (2-1) is contained on the spring even component frame (2-2), the gauge head supporting mechanism is contained on the detector casing (2-7), described operation electriomagnet mechanism comprises two electromagnet (3-3), (3-4), intermeshing pinion wheel (3-1), gear wheel (3-2), with rotation shifting block (1-2), rotation shifting block (1-2) links to each other with the pinion drive axle, and described electromagnetic vibrator (3-5) links to each other with bearing inner race locator mandrel to be measured (2-8) rear end.