CN221033635U - Split type shaft sleeve for pump shafts with flanges at two ends - Google Patents

Split type shaft sleeve for pump shafts with flanges at two ends Download PDF

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CN221033635U
CN221033635U CN202323089901.6U CN202323089901U CN221033635U CN 221033635 U CN221033635 U CN 221033635U CN 202323089901 U CN202323089901 U CN 202323089901U CN 221033635 U CN221033635 U CN 221033635U
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sleeve
shaft sleeve
semicircular ring
shaft
split
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陈守前
陆文鑫
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Hitachi Pump Manufacture Wuxi Co Ltd
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Hitachi Pump Manufacture Wuxi Co Ltd
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Abstract

The utility model provides a split type shaft sleeve for a pump shaft with flanges at two ends, which is convenient and quick to mount, dismount and maintain and low in required labor cost. It includes first half axle sleeve and second half axle sleeve, its characterized in that: the first half shaft sleeve and the second half shaft sleeve respectively comprise a first semicircular ring at two ends and a second semicircular ring at the middle part, the first half shaft sleeve and the second half shaft sleeve are connected through a connecting mechanism in a half way, and the connecting mechanism comprises a sinking groove arranged in the first semicircular ring of the first half shaft sleeve and a connecting screw arranged in the sinking groove; the middle parts of the first half shaft sleeve and the first half ring of the second half shaft sleeve are respectively provided with an anti-rotation screw.

Description

一种两端法兰式泵轴用分半式轴套A split shaft sleeve for a pump shaft with flanges at both ends

技术领域Technical Field

本实用新型涉及大型泵体零件技术领域,具体为一种两端法兰式泵轴用分半式轴套。The utility model relates to the technical field of large pump body parts, in particular to a half-type shaft sleeve for a pump shaft with flanges at both ends.

背景技术Background technique

目前大、中型水泵的泵轴,一般与机组整体锻制,传统整体式轴套无法套装在上面。目前大、中型水泵的泵轴采用的轴套有两种:At present, the pump shafts of large and medium-sized water pumps are generally forged as a whole with the unit, and the traditional integral sleeve cannot be installed on them. At present, there are two types of sleeves used for the pump shafts of large and medium-sized water pumps:

一、包焊式轴套。这种轴套安装时需要切割一块不锈钢钢板,在上面进行大量钻孔,再压平折弯成所需形状,之后与泵轴进行包焊,加工检修时需要返厂对原包焊部分进行加工清除,然后重新包焊,致使泵站检修周期长,检修成本高,甚至在泵站其它零件不需要维修,而泵轴出现过度磨损时,仍必须对整个机组进行拆卸才能进行维修,导致拆卸维修成本高。1. Welded sleeve. When installing this sleeve, you need to cut a piece of stainless steel plate, drill a lot of holes on it, flatten and bend it into the required shape, and then weld it to the pump shaft. When processing and repairing, you need to return to the factory to remove the original welded part, and then re-weld it, which makes the pump station maintenance cycle long and the maintenance cost high. Even when other parts of the pump station do not need to be repaired, but the pump shaft is excessively worn, the entire unit must be disassembled for maintenance, resulting in high disassembly and maintenance costs.

二、堆焊式轴套。这种轴套焊接难度大,堆焊过程中对温度的控制及焊接进度要求必须达到一个严苛的标准,否则就会产生层间龟裂或和性能达不到要求而报废。堆焊工艺流程复杂且较难控制,人力成本高。2. Overlay welding type shaft sleeve. This type of shaft sleeve is difficult to weld. The temperature control and welding progress requirements during the overlay welding process must meet a strict standard, otherwise interlayer cracks will occur or the performance will not meet the requirements and will be scrapped. The overlay welding process is complicated and difficult to control, and the labor cost is high.

可以看出,这两种轴套的安装和拆卸维修过程费时费力,所需人力成本过高。It can be seen that the installation, disassembly and maintenance process of these two types of bushings is time-consuming and labor-intensive, and the labor cost required is too high.

发明内容Summary of the invention

针对现有两端法兰式泵轴用轴套安装维修过程费时费力、所需人力成本过高的缺点,本实用新型提供一种两端法兰式泵轴用分半式轴套,其安装和拆卸维修方便快捷,所需人力成本低。Aiming at the shortcomings of the existing shaft sleeve for flanged pump shaft at both ends being time-consuming and labor-intensive to install and maintain, and requiring excessively high labor costs, the utility model provides a half-type shaft sleeve for flanged pump shaft at both ends, which is convenient and quick to install, disassemble and maintain, and requires low labor costs.

一种两端法兰式泵轴用分半式轴套,其包括第一半轴套和第二半轴套,其特征在于:所述第一半轴套和所述第二半轴套分别包括两端部的第一半圆环和中部的第二半圆环,所述第一半轴套和所述第二半轴套通过连接机构哈夫连接,所述连接机构包括设于所述第一半轴套的所述第一半圆环的沉槽、所述沉槽内安装的连接螺钉;所述第一半轴套和所述第二半轴套的所述第一半圆环的中部分别设有防转螺钉。A split-half sleeve for a flange-type pump shaft at both ends, comprising a first half sleeve and a second half sleeve, characterized in that the first half sleeve and the second half sleeve respectively comprise first semicircular rings at both ends and a second semicircular ring in the middle, the first half sleeve and the second half sleeve being connected via a connecting mechanism, the connecting mechanism comprising a recessed groove provided in the first semicircular ring of the first half sleeve, and connecting screws installed in the recessed groove; anti-rotation screws are respectively provided in the middle of the first semicircular rings of the first half sleeve and the second half sleeve.

其进一步特征在于:It is further characterized by:

所述连接螺钉上设有防松连接件,所述防松连接件的一端通过防松插销连接连接螺钉的顶端,另一端通过防松定位销连接沉槽底部槽壁;The connecting screw is provided with an anti-loosening connecting piece, one end of which is connected to the top of the connecting screw through an anti-loosening latch, and the other end of which is connected to the bottom wall of the sink groove through an anti-loosening positioning pin;

所述第一半圆环和所述第二半圆环的连接处设有锥面;A conical surface is provided at the connection between the first semicircular ring and the second semicircular ring;

所述第一半轴套和所述第二半轴套的哈夫连接处外壁设有一段向内弯曲的圆弧;The outer wall of the half connection between the first half sleeve and the second half sleeve is provided with an arc curved inwards;

所述泵轴设有用于安装所述分半式轴套的安装段,所述分半式轴套的长度略小于所述安装段的长度,所述安装段的中段的直径略小于所述分半式轴套内径的直径;The pump shaft is provided with a mounting section for mounting the half-type shaft sleeve, the length of the half-type shaft sleeve is slightly smaller than the length of the mounting section, and the diameter of the middle section of the mounting section is slightly smaller than the diameter of the inner diameter of the half-type shaft sleeve;

所述第一半圆环的外径和内径小于所述第二半圆环的外径和内径。The outer diameter and the inner diameter of the first semicircular ring are smaller than the outer diameter and the inner diameter of the second semicircular ring.

采用本实用新型的上述结构后,分半式轴套和连接机构的设置使得只需将分半式轴套的两半合并安装在泵轴上再拧上连接螺钉和防松机构即可完成安装,拧下连接螺钉和防松机构再分开分半式轴套的两半即可完成拆卸,安装时不需要在泵轴上进行焊接,拆卸也无需拆解整个机组,安装和拆卸过程方便快捷,降低了维修更换所需时间和人力成本。After adopting the above-mentioned structure of the utility model, the arrangement of the half-type shaft sleeve and the connecting mechanism makes it possible to complete the installation by simply combining the two halves of the half-type shaft sleeve and installing them on the pump shaft and then screwing on the connecting screws and the anti-loosening mechanism. The disassembly can be completed by unscrewing the connecting screws and the anti-loosening mechanism and then separating the two halves of the half-type shaft sleeve. There is no need to weld on the pump shaft during installation, and there is no need to disassemble the entire unit for disassembly. The installation and disassembly process is convenient and quick, reducing the time and labor costs required for maintenance and replacement.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本实用新型主视的结构示意图;FIG1 is a schematic diagram of the structure of the utility model from the front view;

图2为图1的A-A向剖视的示意图;Fig. 2 is a schematic diagram of a cross-section taken along the line A-A of Fig. 1;

图3为图1的B-B向剖视的示意图;Fig. 3 is a schematic diagram of a cross-section taken along line B-B of Fig. 1;

图4为连接螺钉处的细节示意图;FIG4 is a detailed schematic diagram of the connection screw;

图5为图1的Z处的放大图;FIG5 is an enlarged view of a point Z in FIG1 ;

图6为本实用新型安装在泵轴时的结构示意图。FIG. 6 is a schematic diagram of the structure of the utility model when it is installed on the pump shaft.

具体实施方式Detailed ways

下面结合附图对本实用新型作更进一步的说明。The utility model is further described below in conjunction with the accompanying drawings.

见图1至图5,一种两端法兰式泵轴用分半式轴套,其包括第一半轴套2和第二半轴套3,第一半轴套2和第二半轴套3分别包括两端部的第一半圆环11和中部的第二半圆环12,第一半圆环11的外径小于第二半圆环12的外径,第一半圆环11的内径小于第二半圆环12的内径,第一半轴套2和第二半轴套3通过连接机构哈夫连接,连接机构包括设于第一半轴套2的第一半圆环11的沉槽4、沉槽4内安装的连接螺钉5;连接螺钉5上设有防松连接件,防松连接件6的一端通过防松插销7连接连接螺钉5的顶端,另一端通过防松定位销8连接沉槽4底部槽壁,用于防止连接螺钉5出现松动。See Figures 1 to 5, a half-type shaft sleeve for a flange-type pump shaft at both ends, which includes a first half shaft sleeve 2 and a second half shaft sleeve 3. The first half shaft sleeve 2 and the second half shaft sleeve 3 respectively include a first semicircular ring 11 at both ends and a second semicircular ring 12 in the middle. The outer diameter of the first semicircular ring 11 is smaller than the outer diameter of the second semicircular ring 12, and the inner diameter of the first semicircular ring 11 is smaller than the inner diameter of the second semicircular ring 12. The first half shaft sleeve 2 and the second half shaft sleeve 3 are connected by a connecting mechanism. The connecting mechanism includes a recessed groove 4 provided in the first semicircular ring 11 of the first half shaft sleeve 2 and a connecting screw 5 installed in the recessed groove 4; an anti-loosening connecting piece is provided on the connecting screw 5, one end of the anti-loosening connecting piece 6 is connected to the top of the connecting screw 5 through an anti-loosening pin 7, and the other end is connected to the bottom groove wall of the recessed groove 4 through an anti-loosening positioning pin 8, so as to prevent the connecting screw 5 from loosening.

第一半轴套2和第二半轴套3的哈夫连接处外壁设有一段向内弯曲的圆弧14,用于避免第一半轴套2和第二半轴套3出现错边而刮磨轴承。An outer wall of the half connection between the first half sleeve 2 and the second half sleeve 3 is provided with an inwardly curved arc 14 for preventing the first half sleeve 2 and the second half sleeve 3 from misaligning and scraping the bearing.

第一半圆环11和第二半圆环12的连接处设有锥面15,用于避免分半式轴套1与泵轴10之间的配合问题而导致分半式轴套1与泵轴10之间出现松动。A conical surface 15 is provided at the connection between the first semicircular ring 11 and the second semicircular ring 12 to avoid looseness between the split shaft sleeve 1 and the pump shaft 10 due to matching problems.

第一半轴套2的第一半圆环11的中部设有防转螺钉9,用于防止分半式轴套1与泵轴10之间出现相对转动。An anti-rotation screw 9 is provided in the middle of the first semicircular ring 11 of the first half sleeve 2 to prevent relative rotation between the half sleeve 1 and the pump shaft 10 .

泵轴10设有用于安装分半式轴套1的安装段13,分半式轴套1的长度略小于安装段13的长度,安装段13的中段的外径略小于分半式轴套1的内径,使轴套1和泵轴10之间留有间隙,用于降低轴套1和泵轴10之间的磨损。The pump shaft 10 is provided with a mounting section 13 for mounting a half-shaft sleeve 1. The length of the half-shaft sleeve 1 is slightly smaller than the length of the mounting section 13. The outer diameter of the middle section of the mounting section 13 is slightly smaller than the inner diameter of the half-shaft sleeve 1, so that a gap is left between the sleeve 1 and the pump shaft 10 to reduce the wear between the sleeve 1 and the pump shaft 10.

安装时,只需将第一半轴套2和第二半轴套3合并安装在泵轴10上,再拧上连接螺钉5和防松连接件8即可完成安装。拆卸时,只需拧下连接螺钉5和防松连接件8,再分开第一半轴套2和第二半轴套3即可完成拆卸。During installation, the first half sleeve 2 and the second half sleeve 3 are combined and installed on the pump shaft 10, and then the connecting screws 5 and the anti-loosening connector 8 are screwed on to complete the installation. During disassembly, the connecting screws 5 and the anti-loosening connector 8 are screwed off, and then the first half sleeve 2 and the second half sleeve 3 are separated to complete the disassembly.

Claims (6)

1.一种两端法兰式泵轴用分半式轴套,其包括第一半轴套和第二半轴套,其特征在于:所述第一半轴套和所述第二半轴套分别包括两端部的第一半圆环和中部的第二半圆环,所述第一半轴套和所述第二半轴套通过连接机构哈夫连接,所述连接机构包括设于所述第一半轴套的所述第一半圆环的沉槽、所述沉槽内安装的连接螺钉;所述第一半轴套和所述第二半轴套的所述第一半圆环的中部分别设有防转螺钉。1. A split-half sleeve for a flange-type pump shaft at both ends, comprising a first half sleeve and a second half sleeve, characterized in that: the first half sleeve and the second half sleeve respectively comprise first semicircular rings at both ends and a second semicircular ring in the middle, the first half sleeve and the second half sleeve are connected by a connecting mechanism, the connecting mechanism comprises a recessed groove provided in the first semicircular ring of the first half sleeve, and connecting screws installed in the recessed groove; the middle of the first semicircular ring of the first half sleeve and the second half sleeve are respectively provided with anti-rotation screws. 2.根据权利要求1所述的一种两端法兰式泵轴用分半式轴套,其特征在于:所述连接螺钉上设有防松连接件,所述防松连接件的一端通过防松插销连接连接螺钉的顶端,另一端通过防松定位销连接沉槽底部槽壁。2. A half-type shaft sleeve for a pump shaft with flanges at both ends according to claim 1, characterized in that: an anti-loosening connecting piece is provided on the connecting screw, one end of the anti-loosening connecting piece is connected to the top of the connecting screw through an anti-loosening pin, and the other end is connected to the bottom groove wall of the sink groove through an anti-loosening positioning pin. 3.根据权利要求1或2所述的一种两端法兰式泵轴用分半式轴套,其特征在于:所述第一半圆环和所述第二半圆环的连接处设有锥面。3. A split-half sleeve for a pump shaft with flanges at both ends according to claim 1 or 2, characterized in that a conical surface is provided at the connection between the first semicircular ring and the second semicircular ring. 4.根据权利要求1或2所述的一种两端法兰式泵轴用分半式轴套,其特征在于:所述第一半轴套和所述第二半轴套的哈夫连接处的外壁设有一段向内弯曲的圆弧。4. A split-half sleeve for a pump shaft with flanges at both ends according to claim 1 or 2, characterized in that an outer wall of a half-sleeve connection between the first half-sleeve and the second half-sleeve is provided with an inwardly curved arc. 5.根据权利要求1或2所述的一种两端法兰式泵轴用分半式轴套,其特征在于:所述泵轴设有用于安装所述分半式轴套的安装段,所述分半式轴套的长度略小于所述安装段的长度,所述安装段的中段的直径略小于所述分半式轴套内径的直径。5. A split shaft sleeve for a double-end flange pump shaft according to claim 1 or 2, characterized in that: the pump shaft is provided with a mounting section for mounting the split shaft sleeve, the length of the split shaft sleeve is slightly smaller than the length of the mounting section, and the diameter of the middle section of the mounting section is slightly smaller than the diameter of the inner diameter of the split shaft sleeve. 6.根据权利要求1或2所述的一种两端法兰式泵轴用分半式轴套,其特征在于:所述第一半圆环的外径和内径小于所述第二半圆环的外径和内径。6. A split-half sleeve for a pump shaft with flanges at both ends according to claim 1 or 2, characterized in that the outer diameter and inner diameter of the first semicircular ring are smaller than the outer diameter and inner diameter of the second semicircular ring.
CN202323089901.6U 2023-11-16 2023-11-16 Split type shaft sleeve for pump shafts with flanges at two ends Active CN221033635U (en)

Priority Applications (1)

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CN202323089901.6U CN221033635U (en) 2023-11-16 2023-11-16 Split type shaft sleeve for pump shafts with flanges at two ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323089901.6U CN221033635U (en) 2023-11-16 2023-11-16 Split type shaft sleeve for pump shafts with flanges at two ends

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CN221033635U true CN221033635U (en) 2024-05-28

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