CN201740562U

CN201740562U - Level measuring device

Info

Publication number: CN201740562U
Application number: CN2010205061140U
Authority: CN
Inventors: 章望熊
Original assignee: ZHEJIANG XINGTIAN ELECTROMECHANICAL EQUIPMENT CO Ltd
Current assignee: ZHEJIANG XINGTIAN ELECTROMECHANICAL EQUIPMENT CO Ltd
Priority date: 2010-08-23
Filing date: 2010-08-23
Publication date: 2011-02-09
Anticipated expiration: 2020-08-23

Abstract

The utility model discloses a level measuring device, comprising a motor, a master controller, an assistant controller, a torque and rotation speed sensor, a speed reducer, a wire rope and a weight, wherein the wire rope winds around a rolling wheel and one end of the wire rope is connected to the weight; the motor, the master controller and the torque and rotation speed senor are respectively connected to the speed reducer; the motor and the torque and rotation speed senor are both connected to the master controller; the speed reducer is connected to the rolling wheel; the assistant controller is connected to the master controller and the motor. The utility model is characterized in that the master controller sends out a measuring instruction; the motor drives the speed reducer to lay down the weight through the wire rope; when the weight detects the level, the toque and rotation speed senor senses the moment change and sends feedback to the master controller, and the master controller sends out a signal to take back the weight through the wire rope; when the weight returns to the initial position, the action stops and a measuring is finished; the assistant controller is used for supplying power for the master controller, motor driving and signal output loop. The utility model has advantages of high sensitivity, high integration, high reliability and high intelligence.

Description

A kind of article position measuring device

Technical field

The utility model relates to a kind of article position measuring device, relates in particular to a kind of article position measuring device that is applicable to powdery, graininess and blocks of solid material bin, claims thing position mechanical arm again, and it is not subjected to the influence of the factor such as humidity, cohesiveness, electric conductivity of measuring media; Pass through torque rotary speed sensor, automatically rise hammer or falling the changing condition of monitoring moment and motion in the hammer process in the entire process simultaneously, and make corresponding intelligent Control Countermeasure, thereby realized real effective intelligent level gauging, greatly improved the reliability and the correctness of thing position mechanical arm.

Background technology

For a long time, the level gauging of powdery, graininess and blocks of solid material bin is a difficult point problem always.Because measurement environment very severe in the storehouse, not only charging and discharging and deposit, and also medium easily bonds, and dust from flying is big, and the interface is smudgy, facts have proved to be difficult to measure with contactless means, and for example, modes such as ultrasound wave, radar can not correctly be measured reliably; And adopt traditional weight dropper charge level indicator, though can correctly measure reliably, when charging, be easy to generate faults such as burying the disconnected rope of hammer.

Summary of the invention

The utility model provides a kind of and can sensitivity reliably correctly measure the article position measuring device of the thing position of powdery, graininess and blocks of solid material bin, and can prevent to bury the generation of vertical disconnected rope fault at the technical matters that exists in the above-mentioned prior art.

The technical solution of the utility model is achieved in that

A kind of article position measuring device, this measurement mechanism comprises motor, primary controller, auxilliary control device, torque rotary speed sensor, speed reduction unit, wirerope and weight, wirerope is wrapped on the rolling wheel, and an end of wirerope connects weight, wherein, motor, primary controller, torque rotary speed sensor be connection reducer respectively, motor, torque rotary speed sensor all connect primary controller, and speed reduction unit connects rolling wheel, and auxilliary control device connects primary controller and motor respectively.

Adopted the principle of the present utility model and the advantage of technique scheme to be:

The utility model principle of work is as follows: primary controller sends measures instruction, the driven by motor speed reduction unit drives rolling wheel via speed reduction unit again, make the wirerope in the rolling wheel begin to put weight, when weight detects the thing position, the torque rotary speed sensor induced moment changes, feed back to primary controller, primary controller sends signal, makes motor counter-rotating back begin to receive weight by wirerope.When weight is got back to initial position, stop action, promptly finish one-shot measurement.Power supply that primary controller is required and motor-driven power supply are provided by auxilliary control device.The two-way power supply is separately supplied with, and prevents to disturb.

The utility model compared with prior art has following useful result:

1. the various situations that can in time judge rightly in whole level gauging process, and make corresponding control strategies make it adapt to that dust from flying is big, the interface is smudgy, have and bury the possible abominable measurement environment of hammer;

2. on-the-spot the use flexibly promptly can be carried out directly using separately of measuring operation and demonstration by thing position mechanical arm control window itself, also can carry out the automatic measurement of distant place control;

Description of drawings

Fig. 1 is a working state schematic representation of the present utility model;

Fig. 2 is the connection diagram of each parts of the utility model article position measuring device;

Fig. 3 is a workflow diagram of the present utility model.

Embodiment

Embodiment of the present utility model is as follows:

Embodiment: referring to Fig. 1, Fig. 2, Fig. 3, a kind of article position measuring device, this measurement mechanism 5 comprises motor 7, primary controller 9, auxilliary control device 8, torque rotary speed sensor 10, speed reduction unit 11, wirerope 4 and weight 3, wirerope 4 is wrapped on the rolling wheel, one end of wirerope 4 connects weight 3, wherein, motor 7, primary controller 9, torque rotary speed sensor 10 be connection reducer 11 respectively, and motor 7, torque rotary speed sensor 10 all connect primary controller 9, speed reduction unit 11 connects rolling wheel, and auxilliary control device 8 connects primary controller 9 and motor 7 respectively.Have manual measurement operating system and thing bit digital display instrument 6 on the utility model measurement mechanism body.Auxilliary control device 8 is used to provide primary controller 9 required power supply, motor-driven and signal output loop.

During real work, when the height of the material in the material bin 21 changes the needs measurement, primary controller 9 sends measuring-signal, motor 7 drives speed reduction unit 11 rotations makes the weight 3 that hangs on the wirerope 4 down straighten to touching material 1 from zero-bit, the induced moment of torque rotary speed sensor 10 changes and feeds back to primary controller 9, and primary controller 9 sends signal and begins to receive weight 3 by wirerope 4.When weight 3 is got back to initial position, stop action, promptly finish one-shot measurement.

Primary controller described in the utility model has been taked intelligentized control strategy, and it can be distinguished following three kinds of operating modes and make corresponding Control Countermeasure:

(a) weight that causes under factor affecting such as flow perturbation is excessive rocks and by the situation that foreign matter blocks, can have automatic escape control function;

Can protect in time when (b) the stall situation takes place;

(c) for causing the extreme operating condition that buries hammer, the situation of the material that promptly collapses in a large number, thing position mechanical arm can be made effective control strategy, to prevent the fracture of wirerope.

The utility model is a kind of measurement mechanism that utilizes the Robotics design, various situations can in time judge rightly in whole level gauging process, and make corresponding control strategies, make it adapt to that dust from flying is big, the interface is smudgy, have and bury the possible abominable measurement environment of hammer.Because thing position mechanical arm itself has control and display window, on-the-spot use is very flexible, also can carry out the automatic measurement of distant place control in addition; And thing position mechanical arm has sealing property, controls the excessive of granular material effectively, fully compliance with environmental protection requirements.

Claims

1. article position measuring device, it is characterized in that: this measurement mechanism (5) comprises motor (7), primary controller (9), auxilliary control device (8), torque rotary speed sensor (10), speed reduction unit (11), wirerope (4) and weight (3), wirerope (4) is wrapped on the rolling wheel, and an end of wirerope (4) connects weight (3), wherein, motor (7), primary controller (9), torque rotary speed sensor (10) is connection reducer (11) respectively, motor (7), torque rotary speed sensor (10) all connects primary controller (9), and speed reduction unit (11) connects rolling wheel, and auxilliary control device (8) connects primary controller (9) and motor (7) respectively.