CN2593183Y

CN2593183Y - Mechanical electronic resiliometer

Info

Publication number: CN2593183Y
Application number: CN 03200681
Authority: CN
Inventors: 秦瑚
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-07
Filing date: 2003-01-07
Publication date: 2003-12-17
Anticipated expiration: 2013-01-07

Abstract

The utility model relates to a mechanical electronic resiliometer which is provided with an outer shell in the shape of a long cylinder, wherein an elastic stroking rod with a counter weight is arranged in the outer shell; the elastic stroking rod is connected with a slide block which slides on a slide rod; a ruler is arranged on the outer shell correspondingly; a wing-shaped pointer is transversely connected between the elastic stroking rod and the slide block; a ruler slot is arranged on the casing correspondingly to the wing-shaped pointer; a movable grating of a displacement type sensor is fixedly connected with the slide block, and corresponds to a strip hole on the outer shell; a fixing grating of the displacement type sensor is fixed outside the strip hole; the movable grating and the fixing grating are electrically connected with an electronic display by conducting wires. The utility model combines the advantages of a mechanical resiliometer and an electronic digital resiliometer, adopts the non-contact displacement type sensor, and does not destroy and influence the dynamic performance and the elastic potential energy performance of the original mechanical resiliometer. The utility model can carry out graduation verification, enhances the precision and the speed of measurement, extends service life and provides necessary conditions for relevant departments to establish special metering and verify directive rules.

Description

The mechanical electronic mode reisilometer

Technical field

The utility model relates to a kind of surveying instrument, particularly a kind of reisilometer of measuring concrete crushing strength.

Background technology

Concrete bouncing back instrument is the restoring force of being out of shape with the instantaneous elasticity that spring driving elastic stem attack concrete surface is produced, and makes elastic hammer drive pointer and rebounds, and indicate the distance of rebounding.It is with rebound value as one of relevant index of concrete crushing strength, infer the damaged detecting instrument of nothing of concrete compressive strength.Available coagulation soil reisilometer has mechanical type concrete bouncing back instrument and electronic digit reisilometer two classes, but each defectiveness.The former has the projectile body of a long column shape for it, projectile body is built-in with an elastic stem that is installed with weight, elastic stem in the projectile body is connected with slide block, the slide block avris has scale, and its shortcoming is to need one man operation, people's record, and be inserted in formula and become the reisilometer indicating value by the manual conversion, intelligent degree is low, can't measure by calibration, and measuring speed is slow, precision is low, accuracy is not high.1., utilize slide block friction resistor disc there are following three point defects in its latter:, read the voltage of different resistance values, be scaled the reisilometer indicating value.The spoilage of resistor disc is too high, is significantly smaller than the serviceable life of mechanical reisilometer to the serviceable life that makes electronic installation.2., hide photoelectric device during slide block movement, measure the instantaneous velocity of slide block, by speed calculation slide block position, extrapolate the reisilometer indicating value at last, the former indicating value of reisilometer is covered wholly or in part, and the accurate degree of belief of instrument is reduced; Because of not having corresponding relation with instantaneous velocity, be random state, and do not have repeatability, so cause the interior indicating value blind area of 30% numerical range in the slide position of lower-speed state.3., because of photoelectric device easily produces misoperation, sends wrong instruction, existing photo-electric reisilometer can't be in the open, work in the environment under the daylight.At present, country does not still formulate corresponding calibration method, makes the numerical value of measuring lose the detection meaning.Up to now, only there is the mechanical type concrete bouncing back instrument to have one to overlap calibration method complete, science, corresponding national metrological verification regulations is arranged.

Technology contents

The utility model will solve the problem that makes concrete bouncing back instrument have mechanical type concrete bouncing back instrument and electronic digit reisilometer advantage concurrently, improves intelligent degree and measuring accuracy, speed, increases the service life.

The technical scheme of the utility model mechanical electronic mode reisilometer: shell with a long tubular, shell is built-in with an elastic stem that has weight, elastic stem is connected with slide block, slide block slides on slide bar, on the corresponding shell scale is arranged, it is characterized in that: laterally be connected a wing shape pointer between elastic stem and the slide block, with the corresponding shell of wing shape pointer on have scale slot, the moving grid of fixedly connected displacement sensor above the slide block, its moving grid is corresponding with the cylindrical void on the shell, the fixed grid of cylindrical void external fixation displacement sensor, moving grid and fixed grid are electrically connected by lead with electronic console.

There are two guide rails the both sides of above-mentioned cylindrical void, are equipped with moving grid between two guide rails, support fixed grid above two guide rails, and are gapped between fixed grid and the moving grid.

The material of above-mentioned wing shape pointer is sheet metal or non-metal plate.

Connect moving grid by screw or adhesive securement above the above-mentioned slide block.

Above-mentioned displacement sensor is magnetic grid displacement transducer, synchronous inductor displacement transducer, area-changing capacitance displacement transducer or photopotentiometer formula displacement transducer.

Principle of work: when the weight of mechanical electronic mode reisilometer drives slide block movement, place the moving grid of the displacement transducer of slider top, and place the wing type pointer of slide block side, simultaneously with the slide block associated movement, when slide block has moved the Sn distance, then pointer has also moved the Sn distance, can see through scale slot and its mechanical indicating value of transparent scale direct-reading; And moving grid then demonstrates corresponding resilience indicating value by electronic circuit on the fixed grid and microprocessor with respect to the Sn that fixed grid moved on electron showing value device.Displacement induced potential e through the signal transformation of A/D analog to digital, sends into microprocessor CPU, CPU calculates displacement by the null value algorithm, is scaled the special-purpose indicating value of reisilometer at last, through the conversion of D/A digital-analog signal, on liquid crystal (LCD), demonstrate, as shown in Figure 5 again.

Beneficial effect: the utility model combines the advantage of mechanical type reisilometer and electronic digit reisilometer, adopt contactless displacement sensor to be electrically connected with electronic console, do not destroy, do not influence yet mechanics, the elastic potential energy performance of former mechanical reisilometer, improved intelligent degree.Adopt wing shape pointer to be connected between slide block and the elastic stem, and be equipped with guide rail, improved measuring accuracy, speed and accuracy, prolonged serviceable life in the moving grid both sides.Measuring accuracy and resolution are micron (μ m) level, for only requiring millimetre-sized reisilometer indicating accuracy, are to satisfy fully.This reisilometer can carry out calibration calibrating, metering, for relevant department formulates special-purpose metering, vertification regulation, the condition of abundant necessity is provided.

Description of drawings:

Fig. 1 is the profile synoptic diagram of the utility model embodiment;

Fig. 2 is the structural representation of the utility model embodiment;

Fig. 3 is the plan structure synoptic diagram of the utility model embodiment;

Fig. 4 is moving grid, fixed grid, slide block, wing type pointer decomposing schematic representation;

Fig. 5 is that displacement sensor is electrically connected principle schematic with electronic console.

1-slide block, 2-wing type pointer, 3-moving grid, 4-fixed grid, 5-guide rail, 6-shell, 7-cylindrical void, 8-scale slot, 9-weight, 10-elastic stem, 11-slide bar, 12-scale, 13-electronic console.

Embodiment

Embodiment such as Fig. 1,2, shown in 4: the mechanical electronic mode reisilometer has the shell 6 of a long tubular, shell is built-in with an elastic stem 10 that has a weight 9, elastic stem is connected with slide block 1, slide block slides on slide bar 11, on the corresponding shell scale 12 is arranged, the wing shape pointer 2 that laterally is connected a sheet metal or nonmetal sheet between its elastic stem and the slide block, with the corresponding shell of wing shape pointer on have the scale slot 8 of nonadjustable signal 12, the slide block end face is connected the moving grid 3 of displacement sensor by screw or epoxy resin adhesive securement, its moving grid is corresponding with the cylindrical void 7 on the shell, the fixed grid 4 of cylindrical void external fixation displacement sensor, moving grid and fixed grid and electronic console 13 are electrically connected by lead, as shown in Figure 5.Cylindrical void 7 is arranged on the reisilometer shell 6, two guide rails 5 are arranged in the both sides of cylindrical void, shown in Fig. 2,3, the guiding when this two guide rail had both moved as moving grid, spacing is again as the mounting bracket of fixed grid; And the height of this guide rail is designed to make moving grid and fixed grid both to keep accurate gap, guarantees contactless between fixed grid and the moving grid, nothing motion friction again.

Displacement sensor can be selected magnetic grid displacement transducer, synchronous inductor displacement transducer, area-changing capacitance displacement transducer or photopotentiometer formula displacement transducer for use.

Claims

1, a kind of mechanical electronic mode reisilometer, shell with a long tubular, shell is built-in with an elastic stem that has weight, elastic stem is connected with slide block, slide block slides on slide bar, on the corresponding shell scale is arranged, it is characterized in that: laterally be connected a wing shape pointer between elastic stem and the slide block, with the corresponding shell of wing shape pointer on have scale slot, the moving grid of fixedly connected displacement sensor above the slide block, its moving grid is corresponding with the cylindrical void on the shell, the fixed grid of cylindrical void external fixation displacement sensor, and moving grid and fixed grid are electrically connected by lead with electronic console.

2, according to the described mechanical electronic mode reisilometer of claim 1, it is characterized in that: there are two guide rails the both sides of described cylindrical void, are equipped with moving grid between two guide rails, support fixed grid above two guide rails, and are gapped between fixed grid and the moving grid.

3, according to claim 1 or 2 described mechanical electronic mode reisilometers, it is characterized in that: the material of described wing shape pointer is sheet metal or non-metal plate.

4, according to claim 1 or 2 described mechanical electronic mode reisilometers, it is characterized in that: connect moving grid by screw or adhesive securement above the described slide block.

5, according to claim 1 or 2 described mechanical electronic mode reisilometers, it is characterized in that: described displacement sensor is magnetic grid displacement transducer, synchronous inductor displacement transducer, area-changing capacitance displacement transducer or photopotentiometer formula displacement transducer.