WO2012000420A1 - 一种大型固定式电子衡器 - Google Patents

一种大型固定式电子衡器 Download PDF

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Publication number
WO2012000420A1
WO2012000420A1 PCT/CN2011/076466 CN2011076466W WO2012000420A1 WO 2012000420 A1 WO2012000420 A1 WO 2012000420A1 CN 2011076466 W CN2011076466 W CN 2011076466W WO 2012000420 A1 WO2012000420 A1 WO 2012000420A1
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weighing
fixed electronic
platform
weighting
verification
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PCT/CN2011/076466
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English (en)
French (fr)
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许航
姚进辉
林建辉
池辉
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福建省计量科学研究院
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Publication of WO2012000420A1 publication Critical patent/WO2012000420A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/01—Testing or calibrating of weighing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles

Definitions

  • the invention relates to the field of manufacturing electronic scales, in particular to a large fixed electronic weighing instrument which can be verified by a non-weighting device.
  • the fixed electronic weighing instrument is the most mature weighing measuring instrument in the world. It is a wide-ranging measuring instrument widely used in metallurgy, chemical, railway, port and industrial and mining enterprises for various load vehicles and cargo measurement, and for Trade settlement, process control of the weighing process in the production process, is the ideal measuring equipment for enterprises to improve the modernization level of weighing measurement.
  • the working principle of the fixed electronic weighing instrument is to place the weighed object or the truck on the weighing platform. Under the action of gravity, the weighing platform transmits the gravity to the rocking support (steel ball, indenter, etc.), so that the load cell elastic body is generated.
  • the strain gauge bridge attached to the elastomer is out of balance, outputting an electrical signal proportional to the weight value, amplifying the signal via a linear amplifier, converting it to a digital signal by A/D, and then by the microprocessor of the meter The weight is directly displayed after processing the signal.
  • the fixed electronic scale must be verified before it is put into use to determine its accuracy level.
  • the large scale is used for a period of time or after replacing the device, it must be re-calibrated to confirm its accuracy level, so as to adjust accordingly. Meet the accuracy requirements.
  • the national standard for fixed electronic scales with the standard number GB7723-2008 (which adopts the international recommendation OIMLR76 "Non-automatic Weighing Apparatus” (2006E)) clearly states The following three calibration standards are allowed: one is the weight, specifically the standard weight or standard quality; the other is the auxiliary verification device, specifically the instrument is equipped with an auxiliary verification device or an independent auxiliary verification device; The verification uses an alternative to a standard weight, specifically a partial standard weight and any other fixed load to replace the standard weight.
  • Standard weights are difficult to transport. To verify a 100-ton electronic weighing instrument, at least 50 tons of standard weights must be transported; to verify a 150-ton electronic weighing instrument, at least 75 tons of standard weights must be transported. At present, the weight of a domestic transport can only be about 15 tons, especially in mountainous areas. There are dangerous bridges, road restrictions, terrain restrictions, installation in the ravine (such as mines), etc. will limit the weight. Transportation volume
  • the publication date is December 08, 2010, the Chinese invention patent of the publication number 101907484A, the patent name is "the system for verifying large scales and its self-positioning loading and unloading load measuring device", and discloses a non-weight type.
  • the weighing device the specific technical solution is that the self-positioning loading and unloading load measuring device comprises a self-positioning loading and unloading mechanism that can be used to replace the standard weight or the standard weight to load and unload the weighing platform, and a immediately adjacent loading and unloading mechanism
  • the high-precision load measuring instrument provided at the upper end of the mechanism has an accuracy of at least three times the accuracy of the weighing instrument; and the technology solves the above problem.
  • the invention will design a large-scale fixed electronic weighing instrument for use with the non-weight type weighing device, that is, the self-positioning and unloading load measuring device.
  • the technical problem to be solved by the present invention is to provide a large-scale fixed electronic weighing instrument used in conjunction with a self-positioning and loading and unloading load measuring device, which has high verification efficiency, large verification safety, and low verification cost.
  • the present invention is implemented as follows:
  • a large fixed electronic weighing instrument comprising a weighing platform, the weighing platform is provided with at least two weighing device carrying sensors, and is connected to the ground by the at least two weighing device carrying sensors, the at least two weighing device carrying sensors are connected
  • the scale platform is provided with at least two through holes, and a connecting member pre-buried on the foundation is disposed directly under each of the holes.
  • each of the through holes is respectively disposed adjacent to a corresponding scale bearing sensor.
  • the connecting member embedded on the foundation is a connecting member capable of withstanding a pulling force of 0 to 50 tons.
  • the invention is used in conjunction with a self-positioning and unloading load measuring device, and has the following advantages:
  • the verification workload is small and the safety is high. Since the invention can automatically load and unload the load by using the self-positioning and loading and unloading load measuring device, the invention can be verified without moving hundreds of tons of weights or substitutes, and the verification workload is small and the safety is high.
  • the verification efficiency is high.
  • the invention can detect itself by using a self-positioning and unloading load measuring device, and can verify a large fixed type of 100 tons or 200 tons in half a working day without a large number of standard weights and alternatives required for transportation verification.
  • the electronic scale is extremely efficient.
  • the cost required for verification is low.
  • the self-positioning loading and unloading load measuring device can be transported to the destination in one small truck at a time, and the verification can be completed in half a working day, and the transportation cost and the labor cost can be greatly reduced.
  • Figure 1 is a schematic plan view of the present invention.
  • Figure 2 is a front cross-sectional view of the present invention.
  • Figure 3 is a schematic illustration of the use of the self-positioning and unloading load measuring device of the present invention.
  • a large fixed electronic weighing instrument comprises a weighing platform 1 provided with at least two weighing device carrying sensors 2 and passing at least two weighing instruments.
  • the load bearing sensor 2 is connected to the foundation 5, and the at least two scale bearing sensors 2 are connected to a sensor display 4, and the scale table 1 is provided with at least two through holes 11, each of the holes 11
  • a connector 3 pre-buried on the foundation 5 is provided directly below.
  • Each of the through holes 11 is disposed adjacent to the corresponding scale bearing sensor 2, respectively.
  • the connecting member 3 pre-buried on the foundation 5 is a connecting member capable of withstanding a pulling force of 0 to 50 tons.
  • each of the holes 11 is mounted with a self-positioning loading and unloading load measuring device 6, and the lower end of the self-positioning and unloading load measuring device 6 is closely connected to the connecting member 3.
  • the invention can be verified by the self-positioning loading and unloading load measuring device 6, and has the advantages of small verification workload, high safety, high verification efficiency and low verification cost.
  • the embodiment is a large-scale fixed electronic weighing instrument with two scales, and the balance between the four corners of the weighing table and the table is respectively provided with six weighing device carrying sensors, and each weighing device is also provided with a weighing instrument table near the sensor. Corresponding mesa.

Description

一种大型固定式电子衡器 技术领域
本发明涉及电子衡器的制造领域，特别涉及一种可利用非砝码装置进行检定的大型固定式电子衡器。
背景技术
固定式电子衡器是目前世界上技术最为成熟的称重计量器具，属于量大面广的计量器具，广泛应用于冶金、化工、铁路、港口及工矿企业各种载重车辆及货物计量，以及用于贸易结算、生产过程中称重流程的工艺控制，是企业提高称重计量现代化水平的理想计量设备。固定式电子衡器的工作原理是将被称重物或载重汽车置于秤台上，在重力作用下，秤台将重力传递至摇摆支承（钢球、压头等），使称重传感器弹性体产生形变，贴附于弹性体上的应变片桥路失去平衡，输出与重量值成正比例的电信号，经线性放大器将信号放大，再经A/D转换为数字信号，然后由仪表的微处理器对信号进行处理后直接显示重量数。
固定式电子衡器在实际投入使用前必须进行检定，确定其准确度等级，另外，大型衡器在使用一段时间后或更换器件后，也要进行再次检定，确认其准确度等级，以便作相应调整使之满足准确度要求。现有的检定固定式电子衡器用的标准器主要有三种，标准号为GB7723-2008的固定式电子衡器的国家标准（该标准采用国际建议OIMLR76《非自动衡器》(2006E)）中明确指出了允许采用的下述三种检定用标准器：一是砝码，具体是指标准砝码或标准质量；二是辅助检定装置，具体是指衡器配备辅助检定装置或独立的辅助检定装置；三是检定用标准砝码的替代，具体是指部分标准砝码和其他任意固定载荷替代标准砝码。
然而，采用标准砝码或标准砝码和替代物检定固定式电子衡器的检定方法存在以下缺点：
1、检定工作量巨大、效率极低。检定一台合格100t固定式电子衡器共需搬动砝码和替代物达932t，若不合格就需调整，调整后就得重新检定，重新检定就得再次搬运砝码，其搬运砝码或替代物达上千吨以上；
2、搬运大量砝码或替代物的安全性极差。由于电子衡器的承载台面面积有限（如100吨，台面面积也只有54平方左右），要在有限的面积上堆放100吨的砝码或替代物是很困难，在装卸砝码或替代物时是很危险的；
3、替代物难于寻找。不是每台大型固定式电子衡器的用户都能提供合适的替代物，如安装在公路旁的公平秤就很难找到合适的替代物，铁路、港口、有毒液、气体化工企业、纺织厂、煤矿等用户也很难提供合适的替代物；
4、标准砝码难于运输。检定一台100吨电子衡器，至少要运输50吨标准砝码；检定一台150吨电子衡器，至少要运输75吨标准砝码。而目前在国内运输一次砝码也只能15吨左右，特别是山区地带，有危桥限载、道路限载、地形限载，安装在山沟里（如矿山）等等就会限制一次砝码运输量；
5、成本费用极高。运输和搬运如此多的标准砝码或替代物，需要多部检衡车和吊车，检定需要几天时间（检一台100吨汽车衡一般需7个工作日）和多人合作才能完成检定工作。
因此，公开日为2010年12月08日，公开号为101907484A的中国发明专利，专利名为《检定大型衡器的系统及其自定位加卸载载荷测量装置》，公开了一种非砝码型的衡器检定装置，具体技术方案是自定位加卸载载荷测量装置包括一可用于替代标准砝码或标准砝码的替代物对秤台台面加卸载的自定位的加卸载机构以及一紧邻所述加卸载机构的上端设置的高精度载荷测量仪，所述高精度载荷测量仪的准确度至少为所述衡器的准确度的3倍；同时该技术解决了上述问题。本发明将根据此非砝码型的衡器检定装置即自定位加卸载载荷测量装置设计出一种配合该装置使用的大型固定式电子衡器。
发明内容
本发明要解决的技术问题，在于提供一种配合自定位加卸载载荷测量装置使用的大型固定式电子衡器，其检定效率高、检定安全性大，同时检定成本低。
本发明是这样实现的：
一种大型固定式电子衡器，包括一衡器台面，所述衡器台面设有至少两个衡器承载传感器，并且通过该至少两个衡器承载传感器与地基相连接，所述至少两个衡器承载传感器均连接在一传感器显示仪上，所述衡器台面穿设有至少两个台孔，各所述台孔的正下方均设有一预埋在地基上的连接件。
进一步地，各所述台孔分别邻近对应的衡器承载传感器设置。
进一步地，所述预埋在地基上的连接件为可承受0~50吨的拉力的连接件。
本发明配合一种自定位加卸载载荷测量装置使用，具有以下优点：
1、检定工作量小、安全性高。由于本发明可以利用自定位加卸载载荷测量装置进行自动加卸载荷，无需搬动几百吨砝码或替代物对本发明进行检定，检定工作量小、安全性高。
2、检定效率高。本发明可利用一种自定位加卸载载荷测量装置对自身进行检测，无需运输检定所需大量标准砝码和寻找替代物，半个工作日就能检定一台100吨或200吨的大型固定式电子衡器，工作效率极高。
3、检定所需成本低。对本发明进行检定时，只需一部小型货车一次就能将自定位加卸载载荷测量装置运到目的地，只要半个工作日就能完成检定，运输费和人工费用度能大大降低。
附图说明
下面参照附图结合实施例对本发明作进一步的说明。
图1是本发明的俯视结构示意图。
图2是本发明的主视剖面示意图。
图3是本发明的配合自定位加卸载载荷测量装置使用的示意图。
具体实施方式
请参阅图1和图2所示，本发明所涉及的一种大型固定式电子衡器，包括一衡器台面1，所述衡器台面1设有至少两个衡器承载传感器2，并且通过至少两个衡器承载传感器2与地基5相连接，所述该至少两个衡器承载传感器2均连接在一传感器显示仪4上，所述衡器台面1穿设有至少两个台孔11，各所述台孔11的正下方均设有一预埋在地基5上的连接件3。各所述台孔11分别邻近对应的衡器承载传感器2设置。所述预埋在地基5上的连接件3为可承受0~50吨的拉力的连接件。
重点参阅图3，每个台孔11上安装有自定位加卸载载荷测量装置6，所述自定位加卸载载荷测量装置6的下端与连接件3紧密相连。本发明可利用所述自定位加卸载载荷测量装置6进行检定，同时具有检定工作量小、安全性高，检定效率高和检定成本低等优点。
本实施例是两节衡器台面的大型固定式电子衡器，衡器台面的四个角和台面的连接处分别设有六个的衡器承载传感器，每个衡器承载传感器附近的衡器台面处还穿设有对应的台孔。
虽然以上描述了本发明的具体实施方式，但是熟悉本技术领域的技术人员应当理解，我们所描述的具体的实施例只是说明性的，而不是用于对本发明的范围的限定，熟悉本领域的技术人员在依照本发明的精神所作的等效的修饰以及变化，都应当涵盖在本发明的权利要求所保护的范围内。

Claims (3)

1、一种大型固定式电子衡器，包括一衡器台面，所述衡器台面设有至少两个衡器承载传感器，并且通过该至少两个衡器承载传感器与地基相连接，所述至少两个衡器承载传感器均连接在一传感器显示仪上，其特征在于：所述衡器台面穿设有至少两个台孔，各所述台孔的正下方均设有一预埋在地基上的连接件。
2、如权利要求1所述的一种大型固定式电子衡器，其特征在于：各所述台孔分别邻近对应的衡器承载传感器设置。
3、如权利要求1所述的一种大型固定式电子衡器，其特征在于：所述预埋在地基上的连接件为可承受0~50吨的拉力的连接件。
PCT/CN2011/076466 2010-06-30 2011-06-28 一种大型固定式电子衡器 WO2012000420A1 (zh)

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