CN205298022U - 锁紧式直连轴 - Google Patents

锁紧式直连轴 Download PDF

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Publication number
CN205298022U
CN205298022U CN201521121051.6U CN201521121051U CN205298022U CN 205298022 U CN205298022 U CN 205298022U CN 201521121051 U CN201521121051 U CN 201521121051U CN 205298022 U CN205298022 U CN 205298022U
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axle
diameter end
direct
connected axle
axial
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巫进
邱勇
申小强
李林军
凌素琴
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Jiangsu Zhenhua Haike Equipment Technology Co ltd
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JIANGSU ZHENHUA PUMP INDUSTRY MANUFACTURING Co Ltd
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Abstract

本实用新型公开了一种锁紧式直连轴，它由一根直连轴和螺栓组成。所述直连轴小直径端设有外螺纹，大直径端内设轴向内孔，外设径向外凸的加强肋。为了增强轴向内孔壁的弹性变形能力，在轴向内孔壁沿中轴线开设一条纵向开口槽，并且在开口槽两侧加强肋端部配用螺栓连接成可调式锁紧结构。旋转螺栓实现轴向内孔收缩而锁紧配套电机外伸轴端，旋松螺栓则失去对直连轴大直径端的约束，在弹性力作用下轴向内孔恢复初始状态。此结构既便于泵与电机连接安装，也便于维修时作泵与电机的分离，即使连接部位发生严重锈蚀，这种开放式连接结构也能轻松分开，不需作破坏性拆卸，本实用新型特别适合船用泵配套。

Description

锁紧式直连轴
技术领域
本实用新型涉及一种轴件，具体地讲，本实用新型涉及一种用于两根同心轴连接的直连轴，特别是一种水泵与配套电机轴端相连的锁紧式直连轴。
背景技术
直连轴属于一种常用机械传动件，它结构简单、制作容易、安装方便、连接可靠，已广泛应用于水泵、风机、减速机、空压机等装置与配套电机的连接。传统的直连轴是轴端与轴套一体化结构，整体结构的轴套直接与配套电机的轴端套合。现实中，大多数直连轴位于装置与配套电机的结合部，长期处于外露状况。工程中为了避免直连轴表面积尘、积垢和生锈，要求定期给予必要的保养。但是，船舶配套环境特殊，特别是船用水泵安装位置通常在机舱之中，因所处位置空间小，管道密布，难以实施正常的保养。另一方面是大多数船用水泵的工作介质是海水，直连轴及配套电机的轴端易受海水腐蚀。一旦船用水泵或配套电机发生损坏，维修需要作分离性拆开，因传统直连轴为整体结构的轴套，一些应用期长，锈蚀严重的直连轴轴套与配套电机轴端粘结，用手工工具不能正常分离，只能采取破坏性拆卸，破坏性拆卸显然增加用户维修成本。对于船舶这种浮动载体，更换配件的及时性往往很差，易造成误工损失。
实用新型内容
本实用新型主要针对传统结构的直连轴内置整体结构轴套的不足，特别是轴套与配套电机轴端锈蚀后难以拆卸的问题，提出一种同轴连接精度高、连接可靠、便于拆卸的锁紧式直连轴，该轴内置的轴套端具有径向微量变形能力和径向锁紧结构。
本实用新型通过下述技术方案实现技术目标。
锁紧式直连轴，它由一根直连轴和螺栓组成。所述直连轴小直径端设有外螺纹，大直径端设有轴向内孔。其改进之处在于：所述直连轴大直径端部外壁设有径向外凸的加强肋，轴向内孔壁设有沿中轴线开设有一条纵向开口槽，在开口槽两侧的加强肋端部设有用螺栓连接成的可调式锁紧结构。
作为进一步改进方案，所述直连轴大直径端部径向外凸的加强肋轴向截面为矩形。
作为进一步改进方案，所述直径端轴向内孔壁开设一条槽宽C=1～3mm的纵向开口槽。
本实用新型与现有技术相比，具有以下积极效果：1、可调式结构简单、制作容易；2、在直连轴的轴向内孔壁上开设开口槽，可显著增加弹性变形能力，便于配套电机的轴端无障碍插入和抽出；3、用螺栓连接的可调式锁紧结构，松紧调节便捷，连接可靠。
附图说明
图1是本实用新型结构示意图。
图2是图1的局部剖示意图。
图3是图2A-A剖面侧视图。
具体实施方式
下面根据附图并结合实施例，对本实用新型作进一步说明。
附图1所示的锁紧式直连轴实施例，它是离心泵与配套电机轴端的连接件。锁紧式直连轴由一根直连轴1和螺栓2共同组成。所述直连轴1小直径端设有外螺纹，大直径端内设轴向内孔，外设径向外凸的加强肋1.1，本实施例中的加强肋1.1轴向截面为矩形。直连轴1大直径端内设的轴向内孔用于安装配套电机的外伸轴端，为了便于配套电机的外伸轴端无障碍插入或抽出，本实用新型在轴向内孔壁设有沿中轴线开设一条纵向开口槽1.2。开口槽1.2使轴向通孔的刚性减弱一点，但显著增加了弹性变形能力，此结构便于配套电机外伸轴端插入或抽出。因实施例配套规格不大，开口槽1.2的宽度C取值1.5mm，此尺寸的开口槽1.2足以满足锁紧和放松调节的需求。本实用新型中的可调式结构设在以开口槽1.2两侧加强肋1.1端部，并且用螺栓2连接成一体，旋紧螺栓2实现轴向内孔收缩而锁紧配套电机外伸轴端，旋松螺栓2则失去对直连轴1大直径端的约束，在弹性力作用下轴向内孔恢复初始状态。此结构既便于离心泵与电机连接安装，也便于维修时作离心泵与电机的分离，即使连接部位发生严重锈蚀，这种开式连接结构也能轻松分开，不需作破坏性拆卸。

Claims (3)

1.一种锁紧式直连轴，它由一根直连轴（1）和螺栓（2）组成；所述直连轴（1）小直径端设有外螺纹，大直径端设有轴向内孔；其特征在于：所述直连轴（1）大直径端部外壁设有径向外凸的加强肋（1.1），轴向内孔壁设有沿中轴线开设有一条纵向开口槽（1.2），在开口槽（1.2）两侧的加强肋（1.1）端部设有用螺栓（2）连接成的可调式锁紧结构。
2.根据权利要求1所述的锁紧式直连轴，其特征在于：所述直连轴（1）大直径端部径向外凸的加强肋（1.1）轴向截面为矩形。
3.根据权利要求1所述的锁紧式直连轴，其特征在于：所述直连轴（1）大直径端轴向内孔壁开设一条槽宽C=1～3mm的纵向开口槽（1.2）。
CN201521121051.6U 2015-12-31 2015-12-31 锁紧式直连轴 Expired - Fee Related CN205298022U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485046A (zh) * 2015-12-31 2016-04-13 江苏振华泵业制造有限公司 锁紧式直连轴

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485046A (zh) * 2015-12-31 2016-04-13 江苏振华泵业制造有限公司 锁紧式直连轴

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Address after: 225500, 9 Jiangyan Road, Jiangyan Economic Development Zone, Jiangsu, Taizhou (Jiangsu Zhenhua pump industry)

Patentee after: JIANGSU ZHENHUA PUMP INDUSTRY CO.,LTD.

Address before: 225500 Jiangsu Zhenhua Pump Manufacturing Co., Ltd., Jiangyan Road, Jiangyan District, Jiangsu, Taizhou 9

Patentee before: JIANGSU ZHENHUA PUMP MANUFACTURING CO.,LTD.

CP03 Change of name, title or address

Address after: 225500 Jiangyan Avenue No. 9, Jiangyan District, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Pump Manufacturing Co., Ltd.)

Patentee after: JIANGSU ZHENHUA PUMP MANUFACTURING CO.,LTD.

Address before: 225500 Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province (Zhenhua Pump Industry, Jiangsu Province)

Patentee before: JIANGSU ZHENHUA PUMP INDUSTRY CO.,LTD.

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Address after: No.9 Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Haike Equipment Technology Co., Ltd.)

Patentee after: Jiangsu Zhenhua Haike Equipment Technology Co.,Ltd.

Address before: 225500 Jiangsu Zhenhua Pump Manufacturing Co., Ltd., Jiangyan Road, Jiangyan District, Jiangsu, Taizhou 9

Patentee before: JIANGSU ZHENHUA PUMP MANUFACTURING Co.,Ltd.

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