CN2660239Y - Integrated mechanically sealed bushing ring fastener - Google Patents
Integrated mechanically sealed bushing ring fastener Download PDFInfo
- Publication number
- CN2660239Y CN2660239Y CN 200320128671 CN200320128671U CN2660239Y CN 2660239 Y CN2660239 Y CN 2660239Y CN 200320128671 CN200320128671 CN 200320128671 CN 200320128671 U CN200320128671 U CN 200320128671U CN 2660239 Y CN2660239 Y CN 2660239Y
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- bushing
- fastening ring
- fastening
- tightening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model relates to a packed mechanical seal bushing fastener, in particular to a fastener used to fasten the packed mechanical seal bushing on the shaft and make axial positioning of the mechanical seal and rotation along the shaft. The utility model includes a fastening ring (2), a bushing (1) and a fastening screw (3). The fastening ring (2) is covered on the fastening part of the bushing (2) and a plurality of screws (3) arrange on the fastening ring in radial distribution are directly arranged on the external surface of the fastening part of the bushing (1). As directly arranged on the external surface of the bushing or of a positioning slot, the fastening screw of the utility model will not damage the axial surface no matter how great the fastening force is; even if the surface of the bushing is damaged, the dismantling of the fastening ring and the bushing will not be affected because of the large gap between the fastening ring and the bushing.
Description
Technical field
The utility model relates to a kind of integrated mechanical sealing axle sleeve tightening structure, specifically the integrated mechanical sealing axle sleeve is fixed on the axle tightening device that mechanical seal is carried out axially locating and it is rotated together with the axis.
Background technique
The integrated mechanical sealing of prior art, the structure that usually adopt at mechanical seal sleeve tightening position has modes such as wedge fastening ring, middle open type fastening ring, its shortcoming is that processing technology complexity, machining accuracy height, difficulty of processing are big, axial dimension and radial dimension is big, in operation process if looseningly be difficult to adjust, reliability is lower.In recent years a kind of radially tightening structure of Chu Xianing is: be distributed in the Cock screw on the fastening ring circumference, radially the hole that puts by mechanical seal axle directly holds out against on axle.Advantage is that simple in structure, radial and axial size is little, can adjust very easily in the operation process; Shortcoming is that Cock screw directly withstands on the axle, and the axle surface is extruded scar, makes that the axle sleeve dismounting is difficult.
The model utility content
The purpose of this utility model is the problems referred to above that exist at existing integrated mechanical sealing axle sleeve tightening structure, provide a kind of simple in structure, processing technology is simple, machining accuracy is low, size easy to process, radial and axial is little, tightening power is big, tightening reliable, can adjust and can not weigh wounded the integrated mechanical sealing axle sleeve tightening structure on axle surface in the operation process very easily.
The utility model is achieved in that
A kind of integrated mechanical sealing axle sleeve tightening device has fastening ring, axle sleeve and Cock screw, and fastening ring is enclosed within the tightening position of axle sleeve, and radially direct several on fastening ring press closer screw, directly withstand on the outer surface at axle sleeve tightening position.Axle sleeve can have locating slot at the position that Cock screw withstands, and Cock screw directly withstands on the outer surface of locating slot, and locating slot is annular, long strip or circle; The cross section of fastening ring can be " L " shape, square or other shapes.
Advantage of the present invention and beneficial effect are:
1, Cock screw directly withstands on the outer surface of the outer surface of axle sleeve or locating slot, no matter tightening power is much, can not weigh the surface of axle wounded, even the top, surface of axle sleeve is hindered, but, also can not influence the dismounting of fastening ring and axle sleeve because the gap between fastening ring and the axle sleeve is big.
2, owing to locating slot is arranged, when mounted, can carry out axially locating to axle sleeve with the end face and the Cock screw of locating slot at the tightening position of axle sleeve.
3, because the cross section of fastening ring is " L " shape, increased the rigidity of fastening ring, strengthened non-deformability, made tightening more reliable, anti-loose ability is stronger.
4, because it is simple in structure, and axial dimension and radial dimension are little, so processing technology is simple, machining period is few, the stock utilization height has reduced cost of material and processing cost significantly.
5, in operation process, if loosening phenomenon can be adjusted at an easy rate.
Description of drawings
Fig. 1 is the structural representation of mechanical seal sleeve tightening device.
Fig. 2 is for there being the mechanical seal sleeve tightening device schematic representation of annular positioning groove and " L " shape fastening ring.
Embodiment
This mechanical seal sleeve tightening device as shown in Figure 1, tightening position at axle sleeve 1, fastening ring 2 is housed, the Cock screw 3 that radially is distributed on the fastening ring 2 directly withstands on the outer surface of axle sleeve 1, axle sleeve 1 is held out against on axle 4, be contained in the mechanical sealing linkage ring 11 on the axle sleeve 1, just be axially located and together rotate with axle 4 with axle sleeve 1.Spring 9 and mechanical sealing static ring 10 are installed on the mechanical seal cover 8, and mechanical seal cover 8 is fixed on the mechanical seal cavity.
The mechanical seal tightening device that annular positioning groove and " L " shape fastening ring arranged as shown in Figure 2, the axle sleeve 5 that annular positioning groove 6 is arranged, " L " shape fastening ring 7 is housed at the tightening position, radially be distributed in the Cock screw 3 on " L " shape fastening ring 7, directly withstand on the outer surface of annular positioning groove 6, axle sleeve 5 is held out against on axle 4.
Claims (4)
1, integrated mechanical sealing axle sleeve tightening device, have fastening ring (2), axle sleeve (1) and Cock screw (3), it is characterized in that: fastening ring (2) is enclosed within the tightening position of axle sleeve (1), radially direct presses closer screw (3) on fastening ring, directly withstand on the outer surface at axle sleeve (1) tightening position.
2, according to the described integrated mechanical sealing axle sleeve of claim 1 tightening device, it is characterized in that: axle sleeve has locating slot (6) at the position that Cock screw (3) withstands, and Cock screw (3) directly withstands on the outer surface of locating slot (6).
3, according to the described integrated mechanical sealing axle sleeve of claim 2 tightening device, it is characterized in that: locating slot (6) is annular, long strip or circle.
4, according to claim 1 or 2 described integrated mechanical sealing axle sleeve tightening devices, it is characterized in that: the cross section of fastening ring (2) is square or " L " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128671 CN2660239Y (en) | 2003-12-19 | 2003-12-19 | Integrated mechanically sealed bushing ring fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128671 CN2660239Y (en) | 2003-12-19 | 2003-12-19 | Integrated mechanically sealed bushing ring fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660239Y true CN2660239Y (en) | 2004-12-01 |
Family
ID=34349838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320128671 Expired - Fee Related CN2660239Y (en) | 2003-12-19 | 2003-12-19 | Integrated mechanically sealed bushing ring fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660239Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218635A (en) * | 2011-06-17 | 2011-10-19 | 长沙中联重工科技发展股份有限公司 | Technological equipment for general welding |
| CN102226456A (en) * | 2011-06-17 | 2011-10-26 | 长沙中联重工科技发展股份有限公司 | Shaft sleeve assembly, positioning assembly, technological equipment and dismounting method of shaft sleeve assembly |
| CN102248412A (en) * | 2011-06-17 | 2011-11-23 | 长沙中联重工科技发展股份有限公司 | Universal locating assembly and locating device |
| CN102606742A (en) * | 2012-03-08 | 2012-07-25 | 大连华阳光大密封有限公司 | Mechanical seal transmission device applied to high-pressure working conditions |
| CN103133472A (en) * | 2011-06-17 | 2013-06-05 | 中联重科股份有限公司 | Shaft sleeve assembly, positioning assembly and technological equipment |
-
2003
- 2003-12-19 CN CN 200320128671 patent/CN2660239Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218635A (en) * | 2011-06-17 | 2011-10-19 | 长沙中联重工科技发展股份有限公司 | Technological equipment for general welding |
| CN102226456A (en) * | 2011-06-17 | 2011-10-26 | 长沙中联重工科技发展股份有限公司 | Shaft sleeve assembly, positioning assembly, technological equipment and dismounting method of shaft sleeve assembly |
| CN102248412A (en) * | 2011-06-17 | 2011-11-23 | 长沙中联重工科技发展股份有限公司 | Universal locating assembly and locating device |
| CN102218635B (en) * | 2011-06-17 | 2013-02-13 | 中联重科股份有限公司 | General welding process equipment |
| CN102248412B (en) * | 2011-06-17 | 2013-02-13 | 中联重科股份有限公司 | Universal positioning assembly and positioning device |
| CN103133472A (en) * | 2011-06-17 | 2013-06-05 | 中联重科股份有限公司 | Shaft sleeve assembly, positioning assembly and technological equipment |
| CN102226456B (en) * | 2011-06-17 | 2013-07-24 | 中联重科股份有限公司 | Shaft sleeve assembly, positioning assembly, process equipment and dismounting method of shaft sleeve assembly |
| CN103133472B (en) * | 2011-06-17 | 2015-06-03 | 中联重科股份有限公司 | Shaft sleeve assembly, positioning assembly and technological equipment |
| CN102606742A (en) * | 2012-03-08 | 2012-07-25 | 大连华阳光大密封有限公司 | Mechanical seal transmission device applied to high-pressure working conditions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041201 Termination date: 20101219 |