CN202124340U - 一种绞龙滚轮导向套 - Google Patents
一种绞龙滚轮导向套 Download PDFInfo
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Abstract
本实用新型公开了一种配置在混砂车上用于绞龙升降的绞龙滚轮导向套。它包括扣合在一起的上、下导向架、滚轮及支架板，所述支架板与下导向架固定连接，在下导向架的下部设有沿导向套垂直直径左右对称的导向架窗口，在导向架窗口上分别设有一组滚轮机构，其每组包括两个并行排列的滚轮。所述滚轮机构还包括芯轴及芯轴安装板，所述芯轴安装板固定在导向架窗口和支架板之间，所述芯轴固定在芯轴安装板上，所述滚轮套装在芯轴上，所述滚轮的表面略高于下导向架的内壁。其优点是：本实用新型的导向套在工作时，其双排滚轮与螺旋输砂绞龙“四点”接触，相比于现有技术的单排滚轮与螺旋输砂绞龙“两点”接触，使螺旋输砂绞龙升降更平稳。
Description
技术领域
本实用新型涉及一种油田混砂设备，尤其涉及一种配置在混砂车上用于绞龙升降的绞龙滚轮导向套。
背景技术
混砂车属于一种油田配套设备，在混砂车的尾部配有输砂装置，该输砂装置包括一个螺旋输砂绞龙，该输砂绞龙通过滚轮导向套固定在车的后方，其与地面的倾斜度约45度。在车行驶的过程中，绞龙收提在车尾，现场作业时，绞龙通过导向套下落至地面。目前，国外混砂车主要生产厂家双S公司的绞龙升降导向套是单排滚轮结构方式，由于绞龙的长度长、重量大，单排滚轮结构导致绞龙升降平稳性差，绞龙筒壁摩损严重，因此会减少绞龙的使用寿命。
实用新型内容
本实用新型针对现有技术的不足，提供一种能使绞龙导向平稳，收放灵活的绞龙滚轮导向套。
本实用新型解决上述技术问题的技术方案如下：一种绞龙滚轮导向套，包括扣合在一起的上、下导向架、滚轮及支架板，所述支架板与所述下导向架固定连接，在所述下导向架的下部设有沿导向套垂直直径左右对称的导向架窗口，在所述导向架窗口上分别设有一组滚轮机构；
所述每组滚轮机构包括两个并行排列的滚轮。
所述滚轮机构包括滚轮、芯轴及芯轴安装板，所述芯轴安装板固定在
所述导向架窗口和所述支架板之间，所述芯轴固定在所述芯轴安装板上，所述滚轮套装在所述芯轴上，所述滚轮的表面略高于所述下导向架的内壁。
本实用新型的有益效果：一是本绞龙滚轮导向套在工作时，其双排滚轮与螺旋输砂绞龙“四点”接触，相比于现有结构单排滚轮与螺旋输砂绞龙“两点”接触，使螺旋输砂绞龙升降更平稳；二是采用上、下导向架结构使该导向套容易安装和拆卸维护。
在上述技术方案的基础上，本实用新型还可以做如下改进：
进一步，所述滚轮表面呈凹弧形，其弧度与所述下导向架的圆弧度相适配。
采用上述进一步方案的有益效果是，可使绞龙在滑动时与滚轮接触更好，减少因点接触而对绞龙的局部快速磨损。
进一步，所述芯轴的外端设有润滑油嘴；所述芯轴的外壁设有与所述润滑油嘴相连通的螺旋油槽。
采用上述进一步方案的有益效果是，通过黄油嘴为滚轮注黄油润滑，使其在芯轴上转动更灵活。
进一步，所述支架板上设有支架座板及便于所述滚轮机构安装的支架窗口。
采用上述进一步方案的有益效果是，方便导向套在混砂车上固定。
进一步，所述上下导向架由螺栓固定为一体。
采用上述进一步方案的有益效果是，便于导向套拆卸维护。
进一步，所述上导向架的上部内壁设有沿导向套垂直直径对称分布的左右衬套，所述衬套通过衬套螺栓固定在所述上导向架上；所述衬套是尼龙衬套。
采用上述进一步方案的有益效果是，可以使绞龙在导向套中滑动时由滚轮和衬套夹持运动，避免绞龙在导向套中晃动。
进一步，所述导向套与所述支架板的中心线夹角是45度。
采用上述进一步方案的有益效果是，导向套在混砂车上固定后其方向与绞龙保持一致。
附图说明
图1为绞龙滚轮导向套的主视示意图；
图2为图1的俯视示意图；
图3为图1的A-A剖视图；
图4为图3中滚轮机构的局部放大图。
在图1到图4中，1、下导向架，2、支架板，3、芯轴，4、滚轮，5、芯轴安装板，6、支架底板，7、润滑油嘴，8、支架窗口，9、导向架窗口，10、螺栓，11、上导向架，12、衬套，13、衬套螺栓，14、螺旋油槽。
具体实施方式
以下结合附图对本实用新型的原理和特征进行描述，所举实例只用于解释本实用新型，并非用于限定本实用新型的范围。
如图1-图4所示，一种绞龙滚轮导向套，包括扣合在一起的上、下导向架1、11、滚轮4及支架板2，所述支架板2与下导向架1固定连接，在下导向架1的下部设有沿导向套垂直直径左右对称的导向架窗口9，在所述导向架窗口9上分别设有一组滚轮机构。
所述滚轮机构包括滚轮4、芯轴3及芯轴安装板5，所述芯轴安装板5固定在导向架窗口9和支架板2之间，所述芯轴3固定在芯轴安装板5上，所述滚轮4套装在芯轴3上，所述滚轮4的表面略高于下导向架1的内壁。
所述每组滚轮机构包括两个并行排列的滚轮4。
所述滚轮4表面呈凹弧形，其弧度与下导向架1的圆弧度相适配。
所述芯轴3的外端设有润滑油嘴7；所述芯轴3的外壁设有与润滑油嘴
7相连通的螺旋油槽14。
所述支架板2上设有支架底板6及便于滚轮机构安装的支架窗口8。
所述上下导向套由螺栓10固定为一体。
所述上导向架11的上部内壁设有沿导向套垂直直径对称分布的左右衬套12，衬套12通过衬套螺栓13固定在上导向架11上；衬套12是尼龙衬套。
所述导向套与支架板2的中心线夹角是45度。
以上所述仅为本实用新型的较佳实施例，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。
Claims (10)
1.一种绞龙滚轮导向套，包括扣合在一起的上、下导向套(1、11)、滚轮(4)及支架板(2)，所述支架板(2)与所述下导向架(1)固定连接，其特征在于：在所述下导向架(1)的下部设有沿导向套垂直直径左右对称的导向架窗口(9)，在所述导向架窗口(9)上分别设有一组滚轮机构；
所述滚轮机构包括滚轮(4)、芯轴(3)及芯轴安装板(5)，所述芯轴安装板(5)固定在所述导向架窗口(9)和所述支架板(2)之间，所述芯轴(3)固定在所述芯轴安装板(5)上，所述滚轮(4)套装在所述芯轴(3)上，所述滚轮(4)的表面略高于所述下导向架(1)的内壁。
2.根据权利要求1所述的绞龙滚轮导向套，其特征在于：所述每组滚轮机构包括两个并行排列的滚轮(4)。
3.根据权利要求1或2所述的绞龙滚轮导向套，其特征在于：所述滚轮(4)表面呈凹弧形，其弧度与所述下导向架(1)的圆弧度相适配。
4.根据权利要求1所述的绞龙滚轮导向套，其特征在于：所述芯轴(3)的外端设有润滑油嘴(7)。
5.根据权利要求1或4所述的绞龙滚轮导向套，其特征在于：所述芯轴(3)的外壁设有与所述润滑油嘴(7)相连通的螺旋油槽(14)。
6.根据权利要求1所述的绞龙滚轮导向套，其特征在于：所述支架板(2)上设有支架底板(6)及便于所述滚轮机构安装的支架窗口(8)。
7.根据权利要求1、2、4或6所述的绞龙滚轮导向套，其特征在于：所述上、下导向架由螺栓(10)固定为一体。
8.根据权利要求1、2、4或6所述的绞龙滚轮导向套，其特征在于：所述上导向架(11)的上部内壁设有沿导向套垂直直径对称分布的左右衬套(12)，所述衬套(12)通过衬套螺栓(13)固定在所述上导向架(11)上。
9.根据权利要求8所述的绞龙滚轮导向套，其特征在于：所述衬套(12)是尼龙衬套。
10.根据权利要求1、2、4或6所述的绞龙滚轮导向套，其特征在于：所述导向套与所述支架板(2)的中心线夹角是45度。
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