CN110948447A - Nuclear power station directly links fan spherical bearing bush extraction device - Google Patents
Nuclear power station directly links fan spherical bearing bush extraction device Download PDFInfo
- Publication number
- CN110948447A CN110948447A CN201811125571.2A CN201811125571A CN110948447A CN 110948447 A CN110948447 A CN 110948447A CN 201811125571 A CN201811125571 A CN 201811125571A CN 110948447 A CN110948447 A CN 110948447A
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- CN
- China
- Prior art keywords
- tensioning
- positioning
- bearing bush
- nuclear power
- spherical bearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention relates to a device for pulling out a spherical bearing bush of a direct-connected fan of a nuclear power station, which is respectively connected with a bearing chamber and the bearing bush and comprises a bracket, a tensioning mechanism and a positioning mechanism, wherein the bracket is connected with the bearing chamber through the positioning mechanism and positioned, one end of the tensioning mechanism is connected with the bearing bush, and the other end of the tensioning mechanism is connected with the bracket and tensioned through the bracket. Compared with the prior art, the invention has the advantages of convenient and fast operation, high reliability and the like.
Description
Technical Field
The invention relates to the field of direct-connected fans, in particular to a device for pulling out a spherical bearing bush of a direct-connected fan of a nuclear power station.
Background
The direct-connected fan is stable in performance, convenient to install, simple in maintenance process and widely applied to a ventilation system of a nuclear power station. When direct-connected fan spherical bearing dismantles, because between bearing bush and the bearing room to and the clearance is less between bearing bush and the bearing, the atress effect during the dismantlement needs just can pull down it with the help of appurtenance.
At present, the disassembly is usually carried out by using methods such as copper bar vibration, screw driver knocking or crowbar prying outwards, if the force is not uniform, the consequences such as deformation or abrasion of a motor shaft can be caused, and irreparable damage can be caused to equipment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the drawing device for the spherical bearing bush of the direct-connected fan of the nuclear power station.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a nuclear power station directly links fan sphere bearing bush extraction element, the device is connected with bearing room and bearing bush respectively, extraction element include support, straining device and positioning mechanism, the support pass through positioning mechanism and connect the bearing room and fix a position, straining device one end connect the bearing bush, the other end connecting support is taut through the support.
Preferably, the stent is a stent with a shape of central symmetry.
Preferably, the support is a cross support.
Preferably, the bracket is provided with a through hole at the center for aligning with the center hole of the motor shaft.
Preferably, the bracket is made of 20 # steel.
Preferably, the positioning mechanism comprises a positioning bolt, a positioning gasket and a positioning nut, the bracket is provided with positioning holes which are distributed in a central symmetry manner, one end of the positioning bolt is fixedly connected with the positioning holes after passing through the positioning nut and the positioning gasket in sequence, and the other end of the positioning bolt is in uniform contact with the edge of the bearing chamber.
Preferably, the positioning bolt is a screw with the strength of 8.8 grades.
Preferably, the tensioning mechanism comprises a tensioning bolt, a tensioning gasket and a tensioning nut, the support is provided with tensioning holes which are distributed in central symmetry, one end of the tensioning bolt is screwed into the assembling hole of the bearing bush, and the other end of the tensioning bolt is fixedly connected with the tensioning nut after sequentially passing through the tensioning holes and the tensioning gasket.
Preferably, the tension bolt is a screw rod with the strength of 8.8 grades.
Preferably, the positioning hole or the tensioning hole is a long hole.
Compared with the prior art, the invention has the following advantages:
1. the device is convenient and quick to operate and high in reliability, assembly and operation of the device can be completed through simple operation, and damage to equipment parts caused by improper disassembly process is effectively prevented.
2. The invention has simple processing and wide application range, and can be processed by common materials and simple processing technology on the market.
3. By adjusting the distance between the tension bolt and the positioning bolt, the device is widely applicable to the dismounting work of direct-connected fans (centrifugal type and axial type), couplings and spherical bearing bushes of nuclear power plants.
Drawings
FIG. 1 is a schematic structural view of a cross brace according to the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic view of the connection of the present invention in use.
Wherein 1 is the cross support, 2 is positioning mechanism, 3 is straining device, 4 is the bearing room, 5 is spherical bearing, 6 is the bearing bush, 11 is the slot hole, 12 is the through-hole, 21 is positioning bolt, 22 is the locating washer, 23 is set nut, 31 is tensioning bolt, 32 is the tensioning washer, 33 is tensioning nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be made clear and fully described below, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in figure 1, the drawing device for the spherical bearing bush of the direct-connected fan of the nuclear power station is used for safely and reliably removing the bearing bush of the direct-connected fan without damaging fan components, and comprises a support, a tensioning mechanism 3 and a positioning mechanism, wherein the support is connected with a bearing chamber 4 through the positioning mechanism 2 and is positioned, one end of the tensioning mechanism 3 is connected with a bearing bush 6, and the other end of the tensioning mechanism is connected with the support and is tensioned through the support.
The bracket is in central symmetry. More preferably, the support is a cross support 1.
The center of the bracket is provided with a through hole 12 which is used for aligning with the center hole of the motor shaft. The support be the support that uses 20 steel matter preparation to form, the thickness of support be 30mm, guarantee the support intensity of cross support.
The positioning mechanism 2 comprises a positioning bolt 21, a positioning gasket 22 and a positioning nut 23, the support is provided with positioning holes which are distributed in a central symmetry manner, one end of the positioning bolt 21 is fixedly connected with the positioning holes after passing through the positioning nut 23 and the positioning gasket 22 in sequence, and the other end of the positioning bolt is in uniform contact with the edge of the bearing chamber 4. The positioning bolt 21 is a screw rod with the strength of 8.8 grade.
The tensioning mechanism comprises a tensioning bolt 31, a tensioning gasket 32 and a tensioning nut 33, the support is provided with tensioning holes which are distributed in a central symmetry manner, one end of the tensioning bolt 31 is screwed into the assembling hole of the bearing bush 6, and the other end of the tensioning bolt is fixedly connected with the tensioning nut 33 after passing through the tensioning holes and the tensioning gasket 32. The tension bolt 31 is a screw rod with the strength of 8.8 grade.
The positioning hole or the tensioning hole is a long hole 11.
The specific working process of the invention is as follows:
and 3, slowly and symmetrically screwing the tightening nut 33 to pull out the bearing bush 6.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The device is characterized in that the pulling-out device comprises a support, a tensioning mechanism and a positioning mechanism, the support is connected with a bearing chamber through the positioning mechanism and is positioned, one end of the tensioning mechanism is connected with the bearing bush, and the other end of the tensioning mechanism is connected with a support and is tensioned through the support.
2. The device for pulling out a spherical bearing bush of a direct-connected blower of a nuclear power plant as claimed in claim 1, wherein the bracket is a bracket with a shape of central symmetry.
3. The device for pulling out a spherical bearing bush of a direct-connected blower of a nuclear power plant as claimed in claim 2, wherein the bracket is a cross bracket.
4. The apparatus of claim 2, wherein said bracket has a through hole in a center thereof for aligning with a center hole of a motor shaft.
5. The device for pulling out the spherical bearing bush of the direct-connected fan in the nuclear power plant as claimed in any one of claims 1 to 4, wherein the bracket is made of 20 # steel.
6. The device for pulling out the spherical bearing bush of the direct-connected fan in the nuclear power plant as claimed in claim 1, wherein the positioning mechanism comprises a positioning bolt, a positioning gasket and a positioning nut, the support is provided with positioning holes which are distributed in a central symmetry manner, one end of the positioning bolt is fixedly connected with the positioning holes after sequentially passing through the positioning nut and the positioning gasket, and the other end of the positioning bolt is in uniform contact with the edge of the bearing chamber.
7. The device for pulling out the spherical bearing bush of the direct-connected blower of the nuclear power plant as claimed in claim 6, wherein the positioning bolt is a screw rod with the strength of 8.8 grade.
8. The device for pulling out the spherical bearing bush of the direct-connected fan of the nuclear power plant as claimed in claim 1, wherein the tensioning mechanism comprises a tensioning bolt, a tensioning gasket and a tensioning nut, the support is provided with tensioning holes which are distributed in a central symmetry manner, one end of the tensioning bolt is screwed into the assembling hole of the bearing bush, and the other end of the tensioning bolt is fixedly connected with the tensioning nut after sequentially passing through the tensioning holes and the tensioning gasket.
9. The device for pulling out the spherical bearing bush of the direct-connected blower of the nuclear power plant as claimed in claim 8, wherein the tension bolt is a screw rod with the strength of 8.8 grade.
10. The device for pulling out the spherical bearing bush of the direct-connected blower of the nuclear power plant as claimed in claim 7 or 9, wherein the positioning hole or the tensioning hole is a long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125571.2A CN110948447A (en) | 2018-09-26 | 2018-09-26 | Nuclear power station directly links fan spherical bearing bush extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125571.2A CN110948447A (en) | 2018-09-26 | 2018-09-26 | Nuclear power station directly links fan spherical bearing bush extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110948447A true CN110948447A (en) | 2020-04-03 |
Family
ID=69964691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811125571.2A Pending CN110948447A (en) | 2018-09-26 | 2018-09-26 | Nuclear power station directly links fan spherical bearing bush extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110948447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918872A (en) * | 2022-03-15 | 2022-08-19 | 邵亮 | Large-scale spiale sleeve location circle bush dismounting device |
-
2018
- 2018-09-26 CN CN201811125571.2A patent/CN110948447A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114918872A (en) * | 2022-03-15 | 2022-08-19 | 邵亮 | Large-scale spiale sleeve location circle bush dismounting device |
| CN114918872B (en) * | 2022-03-15 | 2024-05-28 | 南京尚科得科技发展有限公司 | Large-scale shaft sleeve positioning round bushing dismounting device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200403 |