CN108195890B - 一种用于电阻式水分仪的采样螺杆 - Google Patents

一种用于电阻式水分仪的采样螺杆 Download PDF

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CN108195890B
CN108195890B CN201810168941.4A CN201810168941A CN108195890B CN 108195890 B CN108195890 B CN 108195890B CN 201810168941 A CN201810168941 A CN 201810168941A CN 108195890 B CN108195890 B CN 108195890B
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尹建辉
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Abstract

本发明公开了一种用于电阻式水分仪的采样螺杆,包括螺筒、承压台和工作机构,所述的螺筒为中空设置,在螺筒的四分之一处,承压台与螺筒的外表面焊接连接,工作机构与螺筒一体成型;在承压台与螺筒的四分之一表面处均匀分布有齿牙;在承压台与螺筒的四分之三表面处均匀分布有螺纹,螺纹之间形成螺槽,在螺纹的收尾处,螺纹分别与螺筒和承压台形成收尾槽;所述的工作机构包括碾压槽,碾压槽的个数为或者个,碾压槽包括碾压齿。该采样螺杆可将各个水分点的谷物粮食碾碎,另外残留在碾压齿间的谷物易脱落,对下一次谷物测量没有影响,提高了测量的效率和准确度。

Description

一种用于电阻式水分仪的采样螺杆
技术领域
本发明属于测量仪器制造技术领域,具体涉及一种用于电阻式水分仪的采样螺杆。
背景技术
粮食中水分含量是评价粮食品质的重要指标,也是收购商划等级、定价的主要参考依据,差一个水分,每斤就差一分钱。国家将粮食质量分为五个等级,小麦和玉米以容重、稻谷以出糙率为主要指标,一等最高,五等最低,五等以下的粮食为等外级。等外级粮食由收购企业根据市场情况依质定价,自行收购。粮食水分、杂质等增扣量的方法作了明确规定,如水分、杂质、不完善粒等含量低于或高于标准的,按规定进行增扣数量。
电阻式测量仪在线检测水分仪主要用于检测物料水分,市场上流通的电阻式水分仪为直接碾压式。这种水分仪存在碾压不稳定性、进料无法控制、粮食残留、碾压谷物粘黏仪器、测量结果不稳定并且测量结果偏差大的缺点,并且在测量不同粮食水分时,需使用不同型号的水分仪,否则存在加大测量误差的缺点,提高了使用成本。
发明内容
本发明的目的在于提供一种用于电阻式水分仪的采样螺杆,将各个水分点的谷物粮食碾碎,另外残留在碾压齿间的谷物易脱落,对下一次谷物测量没有影响,提高了测量的效率和准确度。
本发明的目的可以通过以下技术方案实现:
一种用于电阻式水分仪的采样螺杆,包括螺筒、承压台和工作机构,所述的螺筒为中空设置,在螺筒的四分之一处,承压台与螺筒的外表面焊接连接,工作机构与螺筒一体成型;
在承压台与螺筒的四分之一表面处均匀分布有齿牙;
在承压台与螺筒的四分之三表面处均匀分布有螺纹,螺纹之间形成螺槽,在螺纹的收尾处,螺纹分别与螺筒和承压台形成收尾槽;
所述的工作机构包括碾压槽,碾压槽的个数为或者个,碾压槽包括碾压齿。
进一步,所述的齿牙的个数为个,齿牙横截面为梯形,齿牙的高度h1为7-10mm,齿牙与螺筒之间的夹角为130-140°。
进一步,所述的螺纹为梯形螺纹,螺纹的高度h2为8-12mm,螺纹与螺筒之间的夹角β为105-108°。
进一步,所述的螺槽的宽度为2.5-4mm。
进一步,所述的收尾槽的宽度为1-2.5mm。
进一步,所述的碾压槽碾碎各个水分点的谷物,使得残留在碾压齿间的谷物易脱落,对下一次谷物测量没有影响。
进一步,所述的采样螺杆的材质为锌合金,采样螺杆的外表面依次镀铬层和润滑层,用于保护采样螺杆防氧化和防腐蚀,避免了粮食中的水分对采样螺杆的侵蚀,防止谷物粘黏仪器。
进一步,所述的铬层的厚度为80-100um,所述的润滑层的厚度为55-70um。
本发明的有益效果:
本发明提供了一种用于电阻式水分仪的采样螺杆,设计简单合理,采样螺杆表面平整,光滑,工作面硬度高,耐磨承压台、螺纹收尾槽变小和齿牙的设置提高了采样螺杆的承受压力,承压台同时具有限位的作用,可以控制承受压力的大小;碾压槽选取的数量适中,方便碾碎各个水分点的谷物,使得残留在碾压齿间的谷物易脱落,得到准确的采样值,对下一次谷物测量没有影响;另外采样螺杆的外表面依次镀铬层和润滑层,用于保护采样螺杆防氧化和防腐蚀,避免了粮食中的水分对采样螺杆的侵蚀,防止谷物粘黏仪器导致谷物残留测量不准确,提高了测量的效率和准确度,具有很好的使用和推广价值。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例描述所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明一种用于电阻式水分仪的采样螺杆的结构示意图;
图2为本发明一种用于电阻式水分仪的采样螺杆的俯视图;
图3为本发明一种用于电阻式水分仪的采样螺杆的仰视图;
图4为图2中A处放大图;
图5为图1中B处放大图;
附图中,各标号所代表的部件列表如下:
1-螺筒,101-螺纹,102-螺槽,103-收尾槽,104-齿牙;2-承压台;3-工作机构,301-碾压槽,302-碾压齿。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
请参阅图1-图5所示,本发明为一种用于电阻式水分仪的采样螺杆,包括螺筒1、承压台2和工作机构3,所述的螺筒1为中空设置,在螺筒1的四分之一处,承压台2与螺筒1的外表面焊接连接,承压台2用于承载电阻式水分仪的挤压压力,工作机构3与螺筒1一体成型;
在承压台2与螺筒1的四分之三表面处均匀分布有螺纹101,螺纹101为梯形螺纹,螺纹101的高度h2为8-12mm,螺纹101与螺筒1之间的夹角β为105-108°,螺纹101之间形成螺槽102,螺槽102的宽度为2.5-4mm,在螺纹101的收尾处,螺纹101分别与螺筒1和承压台2形成收尾槽103,收尾槽103的宽度为1-2.5mm;
在承压台2与螺筒1的四分之一表面处均匀分布有齿牙104,齿牙104的个数为36个,齿牙104横截面为梯形,齿牙104的高度h1为7-10mm,齿牙104与螺筒1之间的夹角为130-140°;
所述的工作机构3包括碾压槽301,碾压槽301的个数为10或者12个,碾压槽301包括碾压齿302,碾压槽301可碾碎各个水分点的谷物,使得残留在碾压齿302间的谷物易脱落,对下一次谷物测量没有影响;
所述的采样螺杆的材质为锌合金,采样螺杆的外表面依次镀铬层和润滑层,用于保护采样螺杆防氧化和防腐蚀,避免了粮食中的水分对采样螺杆的侵蚀,防止谷物粘黏仪器导致谷物残留测量不准确,所述的铬层的厚度为80-100um,所述的润滑层的厚度为55-70um。
本发明设计合理,拆卸更换方便,采样螺杆41将各个水分点的谷物粮食碾碎,采集到电阻值后算出粮食中水份,另外残留在碾压齿302间的谷物易脱落,对下一次谷物测量没有影响,提高了测量的效率和准确度,具有很好的使用和推广价值。
以上内容仅仅是对本发明的构思所作的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离发明的构思或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。

Claims (1)

1.一种用于电阻式水分仪的采样螺杆,其特征在于:包括螺筒(1)、承压台(2)和工作机构(3),所述的螺筒(1)为中空设置,在螺筒(1)的四分之一处,承压台(2)与螺筒(1)的外表面焊接连接,工作机构(3)与螺筒(1)一体成型;
在承压台(2)与螺筒(1)的四分之一表面处均匀分布有齿牙(104);
在承压台(2)与螺筒(1)的四分之三表面处均匀分布有螺纹(101),螺纹(101)之间形成螺槽(102),在螺纹(101)的收尾处,螺纹(101)分别与螺筒(1)和承压台(2)形成收尾槽(103);
所述的工作机构(3)包括碾压槽(301),碾压槽(301)的个数为10或者12个,碾压槽(301)包括碾压齿(302);
所述的齿牙(104)的个数为36个,齿牙(104)横截面为梯形,齿牙(104)的高度h1为7-10mm,齿牙(104)与螺筒(1)之间的夹角为130-140°;
所述的螺纹(101)为梯形螺纹,螺纹(101)的高度h2为8-12mm,螺纹(101)与螺筒(1)之间的夹角β为105-108°;
所述的螺槽(102)的宽度为2.5-4mm;
所述的收尾槽(103)的宽度为1-2.5mm;
所述的碾压槽(301)用于碾碎各个水分点的谷物;
所述的采样螺杆的材质为锌合金,采样螺杆的外表面依次镀上铬层和润滑层;
所述的铬层的厚度为80-100um,所述的润滑层的厚度为55-70um。
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CN106970115A (zh) * 2017-05-31 2017-07-21 合肥艾瑞德电气有限公司 一种窄碾压轮可拆卸的谷物水分检测仪

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* Cited by examiner, † Cited by third party
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US4848683A (en) * 1986-12-09 1989-07-18 Ing. Shoji Co., Ltd. Crushing members used in pulverizers
CN202517736U (zh) * 2012-02-15 2012-11-07 岑竞涛 一种家用榨油机的螺杆
CN102980848A (zh) * 2012-11-16 2013-03-20 中国计量学院 电子牙式冰冻粮食水分快速测量方法
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