CN201653648U - Blade gravity center measuring instrument for marine distance adjusting impeller - Google Patents

Abstract

The utility model relates to an apparatus for measuring the blade gravity center of marine distance adjusting impeller. four hydraulic elevating mechanisms and three weighing sensors are fixed on the instrument base; the four hydraulic elevating mechanisms are connected with a hydraulic control system; the three weighing sensors are connected with a PC control system; a measuring rack is placed on the four hydraulic elevating mechanisms; a measuring pedestal is mounted on the measuring rack; by this way, device positioning, double columns guide rail fine adjustment and device dismounting are performed on the measuring pedestal. The weighing sensors are connected with a weighing display controller and a single chip microcomputer. The instrument of the utility model measures the gravity center of the measured object indirectly by the measuring rack, controls the measuring rack by elevating the hydraulic system, delivers the measuring rack to the sensor stably, protects the sensor from bearing outside forces except when measuring, prolongs the service life and increases the sensitivity of the sensor, achieves accurate and stable results, and improves measurement efficiency by 3 to 4 times. The utility model can be used for measuring the parameters of marine distance adjusting impeller blade, such as gravity center, weight and moment with various precision requirements.

Description

Tuning for Controllable Pitch Propeller blade gravity center measurement instrument peculiar to vessel

Technical field

The utility model relates to a kind of device that tuning for Controllable Pitch Propeller blade peculiar to vessel is carried out center of gravity measurement.

Background technology

Conventional static equilibrium measurement is that whole oar peculiar to vessel is measured, and tuning for Controllable Pitch Propeller blade peculiar to vessel (abbreviation blade) measurement requirement is measured under same state the blade of every group (4～6), and every group of blade technical parameter measuring is controlled at very high accuracy rating.Conventional metering system is: be fixed on the pedestal with three common sensor bikinis, blade directly touches sensor, adjusts blade state measurement balance with manual screw.There is following problem in this method:

1) work period long, environmental change is big;

2) adjusting blade is same state difficulty;

3) because sensor directly touches blade, blade clashes into LOAD CELLS easily in doing the static equilibrium measuring process;

4) blade is an abnormity, and the strong point of frock easily produces factor such as slip is affected the measurement result of static equilibrium instrument, and data variation is bigger during duplicate measurements;

5) every blade location and installation, adjust, weigh, dismantle and will spend nearly two hours, consuming time;

6) LOAD CELLS is clashed into the back measuring error and is exceeded requirement in the international gage measuring standard, need debug;

7) measure at every turn after, nonconforming blade must be transferred to other position carry out reconditioning, reduced efficiency of measurement.

In order to address the above problem, need develop the static equilibrium instrument again.

Summary of the invention

The purpose of this utility model is at above-mentioned present situation, aims to provide the tuning for Controllable Pitch Propeller blade gravity center measurement instrument peculiar to vessel that a kind of efficiency of measurement is fast, measuring accuracy is high, measurement result is accurate, the duplicate measurements error is little.

The implementation of the utility model purpose is, tuning for Controllable Pitch Propeller blade gravity center measurement instrument peculiar to vessel, be installed with four hydraulicefficiency elevation structure A on the instrument base, B, C, D and three LOAD CELLS one, two, three, four hydraulicefficiency elevation structures are connected with hydraulic control system, three LOAD CELLS link to each other with the PC control system, measurement bay is positioned on four hydraulicefficiency elevation structures, and locate automatically by four pairs of ball type of contact surface on four hydraulicefficiency elevation structures, measuring pedestal is contained on the measurement bay, locating device connects by measuring pedestal together with bolt again after the Bolt Connection with blade, fine setting twin columns guide rail is installed on the gap location of locating device and measurement bay, and stripping assembly is installed on the outside of measuring pedestal.

LOAD CELLS one, two, three connects weighing displaying controller one, two, three respectively, and weighing displaying controller connects single-chip microcomputer, and single-chip microcomputer connects printing device.

The utility model is measured the center of gravity of testee indirectly by measurement bay; lifting control survey frame with hydraulic system; measurement bay is steadily extradited to LOAD CELLS; LOAD CELLS has been played protection; make LOAD CELLS only when measuring, bear external force; improved the serviceable life and the sensitivity of LOAD CELLS, measurement result is accurate, stable, and efficiency of measurement improves 3～4 times.

The utility model can be used for tuning for Controllable Pitch Propeller blade center of gravity peculiar to vessel, weight and the isoparametric measurement of moment of various accuracy requirements.

Description of drawings

Fig. 1 a, b, c be structure master of the present utility model, bow, left view,

Fig. 2 is the structural representation of fine setting twin columns guide rail, i.e. the enlarged diagram of Fig. 1 a circle part,

Fig. 3 a, b are the utility model locating device master, side view,

Fig. 4 is the positioning device structure synoptic diagram,

Master, left view when Fig. 5 a, b are the utility model measurement state,

Fig. 6 is the control system sketch.

Embodiment

The utility model is described in detail in detail with reference to the accompanying drawings

With reference to Fig. 1 a, b, c and Fig. 2, be installed with four hydraulicefficiency elevation structure A, B, C, D and three LOAD CELLS one, two, three on the instrument base 1, four hydraulicefficiency elevation structure A4, B12, C14, D16 are connected with hydraulic control system 13, three LOAD CELLS one 2,2 15,3 17 link to each other with PC control system 18, measurement bay 3 is positioned on four hydraulicefficiency elevation structures, and locate automatically by four pairs of ball type of contact surface on four hydraulicefficiency elevation structures, locate automatically by four pairs of ball type of contact surface.Measure pedestal 5 and be contained on the measurement bay 3, fine setting twin columns guide rail 11 is installed on the gap location of locating device 8 and measurement bay 3, and stripping assembly 10 is installed on the outside of measuring pedestal 5.

With reference to Fig. 3 a, b, Fig. 4, locating device 8 connect with measuring pedestal 5 with bolt 7 after connecting by bolt 7 with blade 6 again, and locating device 8 can slide along fine setting twin columns guide rail 11.

With reference to Fig. 6, LOAD CELLS one, two, three connects weighing displaying controller one, two, three respectively, surveys gravity model appoach according to bikini, and weighing displaying controller 19,20,21 connects single-chip microcomputer 22, and single-chip microcomputer 22 connects printing device 23.

With reference to Fig. 5 a, b, during the utility model work, control hydraulicefficiency elevation structure 4,12,14,16 fall fully, make LOAD CELLS 2,15,17 contact measurement framves 3, LOAD CELLS 2,15,17 conveniently are sent to weighing displaying controller 19 with electronic signal after stressed, 20,21, survey gravity model appoach according to bikini, single-chip microcomputer 22 is with weighing displaying controller 19,20, the automatic computing of parameter of 21 conversions, demonstrate the center of gravity of blade, weight, parameters such as moment, gather button at PC control system 18 operation interface points and preserve measurement data, repeat the controlled hydraulic system lifting, gather three measurement data and average.The PC control system is control system commonly used.

After testing, control hydraulicefficiency elevation structure 4,12,14,16 with measurement bay 3 steady jack-up with hydraulic control system, LOAD CELLS 2,15,17 is thrown off with measurement bay 3, unclamping bolt 7 usefulness stripping assembly 10 surely releases locating device 8 along guiding rail flat 11 together with blade 6, lifting blade 6 is to the finished product district, unload locating device 8, print measurement result, finish measurement with printing device 23.

Claims (1)

1. tuning for Controllable Pitch Propeller blade gravity center measurement instrument peculiar to vessel, it is characterized in that being installed with on the instrument base four hydraulicefficiency elevation structure A, B, C, D and three LOAD CELLS one, two, three, four hydraulicefficiency elevation structures are connected with hydraulic control system, three LOAD CELLS link to each other with the PC control system, measurement bay is positioned on four hydraulicefficiency elevation structures, and locate automatically by four pairs of ball type of contact surface on four hydraulicefficiency elevation structures, measuring pedestal is contained on the measurement bay, locating device connects by measuring pedestal together with bolt again after the Bolt Connection with blade, fine setting twin columns guide rail is installed on the gap location of locating device and measurement bay, stripping assembly is installed on the outside of measuring pedestal

LOAD CELLS one, two, three connects weighing displaying controller one, two, three respectively, and weighing displaying controller connects single-chip microcomputer, and single-chip microcomputer connects printing device.

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