CN2202310Y - Gauge for measuring radial gap of bearings - Google Patents

Abstract

The utility model relates to a mechanical gauge for measuring radial play of rolling bearings, mainly solving the problems of troublesome operation, difficult aligning of slot bottom and big error existing in existing measuring devices. The utility model is characterized in that a support plate which is radially extended is sheathed on a guide sleeve, the upper and the lower parts of the support plate are respectively provided with an upper and a lower guide posts, an upper and a lower slide blocks, and an upper and a lower levers which can control the slide blocks; a displacement sensor is also arranged on the upper slide block. The utility model is a measuring device capable of automatically aligning of a slot bottom without load. Compared with existing measuring devices, the utility model has the advantages that the accuracy can be improved from higher than +-1 mu meter to not higher than +-0.5 mu meter; the error of indicated values can be improved from not lower than 1.5 mu meters to not higher than 0.5 mu meter.

Description

Gauge for measuring radial gap of bearings

The utility model relates to a kind of measurement mechanism of rolling bearing end-play, the particularly a kind of rolling bearing end-play mechanical measuring device that can find bottom of trench in measurement automatically accurately.

The X093J benchmark play instrument of Luoyang bearing Research Institute is the zero load kinetic measurement instrument of electromechanical integration, comprises rotary main shaft, gland nut, guide pin bushing, guide plate, roller, paw, sensor etc.When measuring the rolling bearing end-play, need manually to find accurately earlier bottom of trench, promptly with manually shaking the handwheel rotation, driving worm gear control guide plate moves, cause that sensor change in displacement electric signal outputs to the electronic box dial plate, watch the dial plate of control electronic box to look for the instantaneous swivel point of pointer, this swivel point is bottom of trench.Its weak point is that its swivel point is difficult to find accurately, is likely empty bottom of trench, rather than real bottom of trench, often causes bigger error owing to personal error and parts foozle.

The purpose of this utility model is exactly to provide a kind of can find bottom of trench, rolling bearing end-play mechanical measuring device that accuracy is high and that improve efficiency of measurement at above-mentioned weak point automatically accurately in the end-play measurement of rolling bearing.

Technical solution of the present utility model is: a kind of rolling bearing end-play mechanical measuring device, comprising can be with fixing rotary main shaft, the gland nut of rolling bearing inner ring to be measured, be enclosed within the guide pin bushing on the main shaft, it is characterized in that: in back up pad radially of guide pin bushing external fixation, this back up pad is provided with last guidepost radially, following guidepost, be respectively equipped with the upper and lower lever of upper and lower slide block and this slide block of control on the upper and lower guidepost, top shoe is provided with displacement transducer.

The utility model is owing to the upper and lower guidepost that is provided with on back up pad radially, upper and lower slide block, with upper and lower lever, thereby, when measuring the rolling bearing end-play, the outer ring of giving measured bearing that upper and lower slide block replaces adds measures load (juxtaposition metamorphose that this load causes is little of ignoring), simultaneously, proofread and correct the position of outer ring, make inside and outside circle parallel, like this, steel ball just falls into bottom of trench automatically in kinetic measurement, sensor becomes electric signal output to the displacement of outer ring, and both the accuracy height made efficiency of measurement improve greatly again.Adopt this device, repeatable accuracy is brought up to≤± 0.5 μ m by＞± 1 μ m; The error of indication is brought up to≤0.5 μ m by 〉=1.5 μ m.

Accompanying drawing is a structural representation of the present utility model, and as Figure of abstract.

The utility model is described in further detail below in conjunction with accompanying drawing: as shown in drawings, rotary main shaft 1, gland nut 8, guide pin bushing all with X093J in identical, back up pad 2 is sleeved on the guide pin bushing, its front end edge extends radially out, and is respectively equipped with guidepost 3 and following guidepost 9 in back up pad 2 upper and lowers of this extension.Last guidepost 3 is provided with top shoe 4 and sensor 5, and top shoe 4 is by upper lever 6 controls.Following guidepost 9 is provided with sliding block 11, sliding block 11 is by lever 10 controls down, during measurement, by gland nut 8 measured bearing 7 is fixed on the rotary main shaft 1, main shaft 1 is driven through reducing gear by motor, can rotate continuously, upper and lower slide block 4,11 alternately adds to measured bearing 7 outer rings measures load, proofread and correct the position of outer ring, make inside and outside circle parallel, measured accurately.

Claims (1)

1. A kind of rolling bearing end-play mechanical measuring device, comprising can be with fixing rotary main shaft (1), the gland nut (8) of rolling bearing inner ring to be measured, be enclosed within the guide pin bushing on the main shaft (1), it is characterized in that: in back up pad (2) radially of guide pin bushing external fixation, this back up pad (2) is provided with last guidepost (3) radially, following guidepost (9), be respectively equipped with the upper and lower lever (6,10) of upper and lower slide block (4,11) and this slide block of control (4,11) on the upper and lower guidepost (3,9), top shoe (3) is provided with displacement transducer (5).

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