CN110682248B - Impeller mounting tool - Google Patents
Impeller mounting tool Download PDFInfo
- Publication number
- CN110682248B CN110682248B CN201911043878.2A CN201911043878A CN110682248B CN 110682248 B CN110682248 B CN 110682248B CN 201911043878 A CN201911043878 A CN 201911043878A CN 110682248 B CN110682248 B CN 110682248B
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- impeller
- fixed sleeve
- sleeve
- lead screw
- transition
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an impeller mounting tool, which comprises a fixed sleeve, a screw rod, a transition sleeve and a top block, wherein the screw rod is fixedly arranged on the fixed sleeve; the transition sleeve is inserted at a seam allowance at the front end of the impeller shaft hole, the closed end of the fixed sleeve penetrates through the transition sleeve, and a connector at the closed end of the fixed sleeve is in threaded connection with a threaded hole at the front end of the pump shaft; the ejector block is inserted in the guide long hole in the side wall of the fixed sleeve, and the front end of the lead screw is in threaded connection with the opening end of the fixed sleeve. The mounting tool has the advantages of simple structure, convenience in disassembly and assembly and convenience in positioning operation; the impeller in the installation process is stressed uniformly, so that the damage of parts is avoided, and the safety is good.
Description
Technical Field
The invention relates to an impeller mounting tool, and belongs to the field of impeller assembly.
Background
When the impeller is assembled, the impeller shaft hole and the impeller position of the pump shaft need to be aligned firstly, and then the shaft hole key groove and the key on the pump shaft are ensured to be aligned, but the gaps between the pump shaft and the inner hole of the impeller and between the key groove and the key are only 0.05mm generally. When the impeller is installed, the impeller is slightly inclined to be assembled, the impeller is in contact with the shaft, the key and the key groove, the friction force generated by the contact surface of the impeller can cause the situation that manpower cannot be used for installation, and the impeller needs to be installed by means of external force.
One of the methods is generally adopted in which the impeller is suspended by a crane, the crane is moved in the direction of installation of the impeller, and the impeller is pulled in by the crane. And secondly, the second step is to use a hand hammer to knock in the circumferential direction of the shaft head or the blades of the impeller to knock the impeller in. Both of these two ways present certain problems when installing the impeller: in the first installation mode, if the hoisting height of a crane is different from the central height of impeller installation, and the impeller is pulled in by using the crane, the impeller shaft hole and the shaft or the key and the key groove are scraped, so that the surfaces of parts are scratched, the problem that the impeller is difficult to install is aggravated, and even the problems that products cannot be installed, the parts are scratched seriously, and the parts are scrapped or the impeller cannot be disassembled after installation are caused; if the hoisting height of the crane is the same as the mounting center height of the impeller, the process of pulling the impeller by using the crane belongs to the inclined pulling and inclined hoisting operation in hoisting operation, and a certain potential safety hazard exists due to the fact that safety operation regulations are seriously violated; the second installation mode can have the hand hammer and strike the dynamics not enough then, and the unable installation of impeller or the dynamics of striking are too big, cause the damaged problem of impeller.
Disclosure of Invention
The invention aims to solve the problems that parts are easy to damage, the safety is poor and the like in the traditional impeller assembling process, and provides an impeller mounting tool.
The purpose of the invention is realized by the following technical scheme:
the invention relates to an impeller mounting tool, which comprises a fixed sleeve, a screw rod, a transition sleeve and a top block;
the fixed sleeve is a cylindrical part with an opening at one end, internal threads are processed on the inner wall of the opening part of the opening end of the cylindrical part, a connector with external threads is arranged in the center of the end face of the closed end of the cylindrical part, and the external threads of the connector are matched with the internal threads of the threaded hole at the front end of the pump shaft; the side wall of the cylindrical part is symmetrically provided with guide long holes extending axially;
the transition sleeve is a cylindrical part with openings at two ends, the inner diameter of the transition sleeve is larger than the outer diameter of the fixed sleeve, and the outer diameter of the transition sleeve is matched with the inner diameter of a spigot at the front end of the shaft hole of the impeller to be assembled;
the length of the top block is greater than the inner diameter of the transition sleeve, and the width of the top block is matched with the width of the guide long hole in the side wall of the fixed sleeve;
the external thread of the screw rod is matched with the internal thread of the opening part of the opening end of the fixed sleeve;
the transition sleeve is inserted at a seam allowance at the front end of the impeller shaft hole, the closed end of the fixed sleeve penetrates through the transition sleeve, and a connector at the closed end of the fixed sleeve is in threaded connection with a threaded hole at the front end of the pump shaft; the ejector block is inserted in the guide long hole in the side wall of the fixed sleeve, and the front end of the lead screw is in threaded connection with the opening end of the fixed sleeve.
When the impeller is assembled, the screw rod is rotated, the screw rod extends out towards the pump shaft direction relative to the fixed sleeve, the screw rod pushes the ejector block to slide along the guide long hole in the side wall of the fixed sleeve, when the ejector block tightly pushes the transition sleeve, the screw rod and the impeller to be assembled are axially positioned, the screw rod is continuously rotated, and the fixed sleeve pulls the impeller to be assembled to move towards the impeller direction until the impeller is assembled in place.
Furthermore, the rear end of the lead screw is provided with a positioning section matched with a wrench, so that the lead screw can be rotated by the wrench conveniently.
Furthermore, a positioning groove is formed in one side, in contact with the front end of the lead screw, of the ejector block, and when the lead screw axially moves towards the pump shaft direction, the ejector block is radially positioned to prevent the ejector block from sliding out of the guide long hole in the side wall of the fixed sleeve.
Advantageous effects
The mounting tool is connected through threads, so that the connection is simpler and the mounting and dismounting are convenient; the whole device is positioned through the fixed sleeve and the shaft head threads, so that the positioning is simple; after the positioning, the direction of the pressure generated by the tool is along the axial center direction, and the problem of uneven stress in the installation process does not exist. The force generated by rotating the external thread of the screw rod is transmitted to the impeller through the ejector block and the transition sleeve, and finally the impeller can be stably pressed into the impeller position of the shaft, so that the damage to parts is avoided, and the safety is good.
Drawings
FIG. 1 is a view showing a configuration of an impeller mounting tool according to the present invention in a use state;
FIG. 2 is a block diagram of a retaining sleeve of the impeller installation tool of the present invention;
FIG. 3 is a block diagram of a lead screw in the impeller installation tool of the present invention;
FIG. 4 is a block diagram of a top block of the impeller installation tool of the present invention;
in the figure, 1-fixed sleeve, 2-lead screw, 3-transition sleeve and 4-top block.
Detailed Description
The invention will be further described with reference to the following description and examples in conjunction with the accompanying drawings:
examples
As shown in fig. 1, a structure view of a use state of the impeller installation tool; the impeller mounting tool comprises a fixed sleeve 1, a screw rod 2, a transition sleeve 3 and a top block 4;
fig. 2 is a structural diagram of the fixing sleeve, wherein the fixing sleeve 1 is a cylindrical part with an opening at one end, an internal thread is processed on the inner wall of the opening part of the opening end of the cylindrical part, a connector with an external thread is arranged in the center of the end face of the closed end of the cylindrical part, and the external thread of the connector is matched with the internal thread of a threaded hole at the end part of the front end of the pump shaft; the side wall of the cylindrical part is symmetrically provided with guide long holes extending axially;
the transition sleeve 3 is a cylindrical part with openings at two ends, the inner diameter of the transition sleeve 3 is larger than the outer diameter of the fixed sleeve 1, and the outer diameter of the transition sleeve 3 is matched with the inner diameter of a spigot at the front end of an impeller shaft hole to be assembled;
fig. 4 is a structural diagram of the top block, the length of the top block 4 is greater than the inner diameter of the transition sleeve 3, and the width of the top block 4 is matched with the width of a guide long hole on the side wall of the fixing sleeve 1; one side of the ejector block 4, which is in contact with the lead screw 2, is provided with a positioning groove, and when the lead screw 2 axially moves towards the pump shaft direction, the ejector block 4 is radially positioned to prevent the ejector block 4 from sliding out of the guide long hole in the side wall of the fixed sleeve 1.
Fig. 3 is a structural diagram of the screw rod 2, wherein the external thread of the screw rod 2 is matched with the internal thread of the opening part of the opening end of the fixed sleeve 1; a positioning section matched with a wrench is processed at the rear end of the screw rod 2, so that the screw rod 2 can be conveniently rotated by using the wrench;
the transition sleeve 3 is inserted at a spigot at the front end of the impeller shaft hole, the closed end of the fixed sleeve 1 penetrates through the transition sleeve 3, and a connector at the closed end of the fixed sleeve 1 is in threaded connection with a threaded hole at the front end of the pump shaft; the top block 4 is inserted into the guide long hole in the side wall of the fixed sleeve 1, and the front end of the lead screw 2 is in threaded connection with the opening end of the fixed sleeve 1.
When the impeller is assembled, the screw rod 2 is rotated, the screw rod 2 extends out towards the pump shaft direction relative to the fixed sleeve 1, the screw rod 2 pushes the ejector block 4 to slide along the guide long hole on the side wall of the fixed sleeve 1, when the ejector block 4 tightly pushes the transition sleeve 3, the screw rod 2 and the impeller to be assembled are axially positioned, the screw rod 2 is continuously rotated, and the fixed sleeve 1 pulls the impeller to be assembled to move towards the impeller direction until the impeller is assembled in place.
Furthermore, a positioning groove is formed in one side, in contact with the front end of the lead screw 2, of the ejector block 4, and when the lead screw 2 axially moves towards the pump shaft direction, the ejector block 4 is radially positioned to prevent the ejector block 4 from sliding out of the guide long hole in the side wall of the fixed sleeve 1.
Claims (3)
1. An impeller mounting tool, characterized by: comprises a fixed sleeve, a screw rod, a transition sleeve and a top block;
the fixed sleeve is a cylindrical part with an opening at one end, internal threads are processed on the inner wall of the opening part of the opening end of the cylindrical part, a connector with external threads is arranged in the center of the end face of the closed end of the cylindrical part, and the external threads of the connector are matched with the internal threads of the threaded hole at the front end of the pump shaft; the side wall of the cylindrical part is symmetrically provided with guide long holes extending axially;
the transition sleeve is a cylindrical part with openings at two ends, the inner diameter of the transition sleeve is larger than the outer diameter of the fixed sleeve, and the outer diameter of the transition sleeve is matched with the inner diameter of a spigot at the front end of the shaft hole of the impeller to be assembled;
the length of the top block is greater than the inner diameter of the transition sleeve, and the width of the top block is matched with the width of the guide long hole in the side wall of the fixed sleeve;
the external thread of the screw rod is matched with the internal thread of the opening part of the opening end of the fixed sleeve;
the transition sleeve is inserted at a seam allowance at the front end of the impeller shaft hole, the closed end of the fixed sleeve penetrates through the transition sleeve, and a connector at the closed end of the fixed sleeve is in threaded connection with a threaded hole at the front end of the pump shaft; the ejector block is inserted into the guide long hole in the side wall of the fixed sleeve, and the front end of the lead screw is in threaded connection with the opening end of the fixed sleeve;
the lead screw is rotated, the lead screw extends out towards the pump shaft direction relative to the fixed sleeve, the lead screw pushes the ejector block to slide along the guide long hole in the side wall of the fixed sleeve, when the ejector block tightly pushes the transition sleeve, the lead screw and the impeller to be assembled are axially positioned, the lead screw is continuously rotated, and the fixed sleeve pulls the impeller to be assembled to move towards the axial direction of the pump until the impeller is assembled in place.
2. An impeller installation tool according to claim 1 wherein: and the rear end of the screw rod is provided with a positioning section matched with the wrench.
3. An impeller installation tool according to claim 1 wherein: and a positioning groove is formed in one side of the ejector block, which is in contact with the front end of the lead screw, and the ejector block is positioned in the radial direction when the lead screw axially moves towards the pump shaft direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043878.2A CN110682248B (en) | 2019-10-30 | 2019-10-30 | Impeller mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911043878.2A CN110682248B (en) | 2019-10-30 | 2019-10-30 | Impeller mounting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110682248A CN110682248A (en) | 2020-01-14 |
| CN110682248B true CN110682248B (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911043878.2A Active CN110682248B (en) | 2019-10-30 | 2019-10-30 | Impeller mounting tool |
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| Country | Link |
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| CN (1) | CN110682248B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580068A (en) * | 2021-07-21 | 2021-11-02 | 福建福清核电有限公司 | Nuclear power plant liquid ring vacuum pump impeller mounting device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522630A1 (en) * | 1991-07-12 | 1993-01-13 | General Motors Corporation | Impeller wheel lock in a drive assembly |
| CN101701588A (en) * | 2009-11-20 | 2010-05-05 | 无锡压缩机股份有限公司 | Method for assembling impeller and high speed rotating shaft, and special tool thereof |
| CN202659586U (en) * | 2012-03-21 | 2013-01-09 | 上虞市鹏翔暖通设备有限公司 | Screw-type tooling for assembling fan impeller |
| CN106956229A (en) * | 2017-05-17 | 2017-07-18 | 重庆欧尼斯特机电有限公司 | A kind of impeller fixing tool |
| CN209195816U (en) * | 2018-12-26 | 2019-08-02 | 溧阳福思宝高速机械有限公司 | A kind of used in high-speed motor impeller installing |
-
2019
- 2019-10-30 CN CN201911043878.2A patent/CN110682248B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522630A1 (en) * | 1991-07-12 | 1993-01-13 | General Motors Corporation | Impeller wheel lock in a drive assembly |
| CN101701588A (en) * | 2009-11-20 | 2010-05-05 | 无锡压缩机股份有限公司 | Method for assembling impeller and high speed rotating shaft, and special tool thereof |
| CN202659586U (en) * | 2012-03-21 | 2013-01-09 | 上虞市鹏翔暖通设备有限公司 | Screw-type tooling for assembling fan impeller |
| CN106956229A (en) * | 2017-05-17 | 2017-07-18 | 重庆欧尼斯特机电有限公司 | A kind of impeller fixing tool |
| CN209195816U (en) * | 2018-12-26 | 2019-08-02 | 溧阳福思宝高速机械有限公司 | A kind of used in high-speed motor impeller installing |
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| Publication number | Publication date |
|---|---|
| CN110682248A (en) | 2020-01-14 |
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