CN201094091Y - Electronic scale checking apparatus - Google Patents

Electronic scale checking apparatus Download PDF

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Publication number
CN201094091Y
CN201094091Y CNU2007200324345U CN200720032434U CN201094091Y CN 201094091 Y CN201094091 Y CN 201094091Y CN U2007200324345 U CNU2007200324345 U CN U2007200324345U CN 200720032434 U CN200720032434 U CN 200720032434U CN 201094091 Y CN201094091 Y CN 201094091Y
Authority
CN
China
Prior art keywords
hydraulic
high precision
scale
hydraulic pressure
verifying unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2007200324345U
Other languages
Chinese (zh)
Inventor
刘统春
张荣军
李宇扬
罗向军
杨静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
No44 Institute Of China Academy Of Launch Vehicle Technology
Original Assignee
No44 Institute Of China Academy Of Launch Vehicle Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by No44 Institute Of China Academy Of Launch Vehicle Technology filed Critical No44 Institute Of China Academy Of Launch Vehicle Technology
Priority to CNU2007200324345U priority Critical patent/CN201094091Y/en
Application granted granted Critical
Publication of CN201094091Y publication Critical patent/CN201094091Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a verifying unit of an electronic loadcell scale, which is composed of a testing part, a hydraulic pressure loading part and a force delivery part, wherein, the testing part is composed of a sensor, a signal conditioning case and a high precision digital indicator; the hydraulic pressure loading part is composed of a hydraulic pressure workstation, a valve assembly and a non-tipping hydraulic cylinder; the force delivery part is composed of a rigid heavy frame, a flexible connecting piece and a basic crossbeam. The utility model uses the principle of connecting vessels and the law of action and reaction to achieve the whole working process in principle and fully overcomes the disadvantages of traditional verifying unit of the electronic loadcell scale. The verifying unit is organic combination of modern hydraulic technology and testing technology and has the advantages of high reliability, high precision, high efficiency, broad measuring range without partial loading during integral loading, etc.

Description

A kind of electronic scales calibration equipment
Technical field
The utility model relates to the calibrating installation of electronic scales/weighing apparatus.
Background technology
Electronic scales comprises current bunker scale, truck scale, track scale, tippler track scale, at present, the verification of domestic electronic scales takes the method for traditional counterweight or physical goods inspection to realize that shortcoming is mostly: waste time and energy, expensive, be difficult to safeguard, can affected property difference etc.; Than advanced method is to adopt screw jack to load, and the method that proving ring shows is come the verification electronic scales, major defect: the proving ring precision is low, and the loading unbalance loading is bigger, artificial poor operability.These defectives hamper the development of some industry gage work for a long time, are having a strong impact on quality, unit or the individual's of product economic interests.The particularly quick verification of technology electron-like scale, the accurate verification of wide range electronic scales, its method of calibration and calibration equipment become a new problem of present electronic scales verification.
Summary of the invention
The purpose of this utility model provides a kind of electronic scales calibration equipment, overcome the shortcoming that above traditional electronic scales calibration equipment exists fully, be the combination of modern hydraulic technology and measuring technology, have highly reliable, high precision, high-level efficiency, wide-range scope, the whole advantage such as no unbalance loading that loads.
The technical scheme that realizes the utility model purpose is a kind of electronic scales calibration equipment, is made of part of detecting, hydraulic loaded part, power transmitting portions, and wherein part of detecting is made up of sensor, signal condition box and high precision digital displaying meter; Hydraulic loaded partly is a hydraulic drive circuit; The power transmitting portions is made up of rigidity heavy frame, flexible connecting member and basic crossbeam, described hydraulic workstation, valve combination are unloaded hydraulic cylinder with nothing and are formed hydraulic drive circuit, described sensor upper end is provided with basic crossbeam, the lower end is provided with not have unloads hydraulic cylinder, described signal condition box one end is connected with sensor, the other end is connected with the high precision digital displaying meter, and the high precision digital displaying meter is connected with operating console again; Described hydraulic workstation one end and valve are connected, and the other end is connected with operating console.
Present technique be adapt to current electronic scales/weighing apparatus class fast, efficient, high-precision calibration and producing, it has overcome the technological deficiency of current conventional calibration method existence simultaneously, is a kind of desirable special electronic scale/weighing apparatus calibrating installation.Aspect high efficiency, can make electronic scales verification efficient improve tens times.For the electronic scales of wide range tons particularly up to a hundred even hundreds of ton, more can embody the outstanding advantage of this device wide-range scope.
This calibration equipment is easy to use, be convenient to maintenance, high precision, high-level efficiency, low cost, on the principle and realize providing new approaches for the calibration of electronic scales, this device has become a kind of special electronic scale calibration equipment of function admirable, has good social prospect.
This calibration equipment has been successfully applied to bunker scale, full-sized car weighing apparatus, track scale verification, and obtains good social benefit.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the structural representation of the another kind of embodiment of the utility model.
Embodiment
This electronic scales calibration equipment utilizes law of connected vessels and Newton third law on principle.
As shown in Figure 1, this calibration equipment structure mainly is made of three parts: part of detecting, hydraulic loaded part, power transmitting portions.
Part of detecting: be made up of high precision standard transducer 5 (0.03 grade), signal condition box 7, high precision digital displaying meter 9, part of detecting is compared with present proving ring, and measuring accuracy can improve several magnitude, and proving ring is that pointer shows that precision is generally 1%.
The hydraulic loaded part: unload hydraulic cylinder 6 by hydraulic workstation 10, valve combination 8, nothing and form, hydraulic loaded partly is the power source and the topworks of this device, directly influences the size of loaded load and the stability of load value.
The power transmitting portions: mainly be made up of rigidity heavy frame 4, flexible connecting member 2 and basic crossbeam 3, power transmitting portions major function realizes effective transmission of loaded load.
Implementation is: be connected with rigidity heavy frame 4 by flexible connecting member 2 by verification weighing apparatus 1, hydraulic workstation 10 produces load by the hydraulic pressure execution architecture, load acts on bogey by standard transducer 5, according to law of connected vessels as can be known, the level line liquid internal pressure equates everywhere in the connecting pipeline, so each topworks (hydraulic cylinder) produces the thrust that size myopia equates.According to Newton's law the 3rd law as can be known, acting force and reacting force opposite sign but equal magnitude, the reaction force acts of the thrust that topworks's (hydraulic cylinder) produces is in the scale body, realized electronic scales is loaded, the normal loading signal that produces is entered disposal system by collection in real time, carries out data processing, realize data presentation by high precision digital displaying meter 9,11 pairs of whole processes of operating console are controlled.Video data under the metastable state is as the standard value of verification, thereby realization is to the verification of electronic scales.
Fig. 2 is the structural representation of the another kind of embodiment of the utility model, is the difference of rigidity heavy frame 4 installation sites, and in the structure of Fig. 2, rigidity heavy frame 4 is on the top of weighing apparatus scale body, and in the structure of Fig. 1, rigidity heavy frame 4 is in the bottom of weighing apparatus scale body.Remaining connected mode and the course of work are just the same.

Claims (1)

1. an electronic scales calibration equipment is characterized in that being made of part of detecting, hydraulic loaded part, power transmitting portions, and wherein part of detecting is made up of sensor (5), signal condition box (7) and high precision digital displaying meter (9); Hydraulic loaded partly is a hydraulic drive circuit; The power transmitting portions is made up of rigidity heavy frame (4), flexible connecting member (2) and basic crossbeam (3), described hydraulic workstation (10), valve combination (8) are unloaded hydraulic cylinder (6) with nothing and are formed hydraulic drive circuit, described sensor (5) upper end is provided with basic crossbeam (3), the lower end is provided with not have unloads hydraulic cylinder (6), described signal condition box (7) one ends are connected with sensor (5), the other end is connected with high precision digital displaying meter (9), and high precision digital displaying meter (9) is connected with operating console (11) again; Described hydraulic workstation (10) one ends are connected with valve combination (8), and the other end is connected with operating console (11).
CNU2007200324345U 2007-08-03 2007-08-03 Electronic scale checking apparatus Expired - Fee Related CN201094091Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200324345U CN201094091Y (en) 2007-08-03 2007-08-03 Electronic scale checking apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200324345U CN201094091Y (en) 2007-08-03 2007-08-03 Electronic scale checking apparatus

Publications (1)

Publication Number Publication Date
CN201094091Y true CN201094091Y (en) 2008-07-30

Family

ID=39902061

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200324345U Expired - Fee Related CN201094091Y (en) 2007-08-03 2007-08-03 Electronic scale checking apparatus

Country Status (1)

Country Link
CN (1) CN201094091Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101435717B (en) * 2008-12-11 2010-06-02 中国航天科技集团公司第四研究院第四十四研究所 Load structure unit for automobile balance checkout
CN104913834A (en) * 2015-06-25 2015-09-16 河南省计量科学研究院 Weighing apparatus calibration system of water flow-rate standard device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101435717B (en) * 2008-12-11 2010-06-02 中国航天科技集团公司第四研究院第四十四研究所 Load structure unit for automobile balance checkout
CN104913834A (en) * 2015-06-25 2015-09-16 河南省计量科学研究院 Weighing apparatus calibration system of water flow-rate standard device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080730

Termination date: 20130803