CN112894711B - Magnetic suspension blower impeller ejecting device - Google Patents
Magnetic suspension blower impeller ejecting device Download PDFInfo
- Publication number
- CN112894711B CN112894711B CN202110409632.3A CN202110409632A CN112894711B CN 112894711 B CN112894711 B CN 112894711B CN 202110409632 A CN202110409632 A CN 202110409632A CN 112894711 B CN112894711 B CN 112894711B
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- screw rod
- expansion
- expansion sleeve
- ejection device
- impeller
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an impeller ejection device of a magnetic suspension blower, which comprises a screw rod, an ejector rod, an expansion head, an expansion sleeve and a locking mechanism, wherein the expansion head, the expansion sleeve and the locking mechanism are sleeved on the screw rod and are sequentially arranged along the extension direction of the screw rod; the outer surface of the second end of the screw rod is provided with a first connecting part, and the locking mechanism is fixedly connected with the screw rod through the first connecting part; and a threaded hole is formed in the second end of the screw rod along the axial direction of the screw rod, and one end of the ejector rod is fixedly connected with the screw rod through the threaded hole. The magnetic suspension blower impeller ejection device is simple in structure, safe and convenient to use and low in manufacturing cost, can effectively eliminate potential safety hazards during operation of workers, and greatly improves the impeller dismounting efficiency.
Description
Technical Field
The invention relates to the technical field of magnetic suspension equipment, in particular to an impeller ejection device of a magnetic suspension blower.
Background
The prior technical method for disassembling the magnetic suspension blower impeller is difficult to smoothly disassemble the impeller, so that a stud bolt for supporting the impeller is easily disassembled, the impeller is still connected with a motor rotor, and the impeller can be continuously disassembled under the condition that the impeller is only baked by brute force or a hot air gun. When the impeller is disassembled by brute force, the three-dimensional flow blades on the impeller are easy to cause injury to people, so that great potential safety hazards exist, the disassembly time is long, the labor intensity is high, and the working efficiency is low; the mode of baking the impeller by the hot air gun needs to bake the impeller to a high enough temperature, so that the time consumption is long and the working efficiency is low. Therefore, the mode of dismantling the impeller under the prior art is not only dangerous, time-consuming and labor-consuming, but also has low working efficiency.
Disclosure of Invention
The present invention is directed to solving the problems described above. It is an object of the present invention to provide an impeller ejection device that solves any of the above problems. Specifically, the invention provides a device capable of disassembling the impeller safely and effectively in a time-saving and labor-saving manner.
In order to achieve the purpose, the invention provides a magnetic suspension blower impeller ejection device which comprises a screw rod, an ejector rod, an expansion head, an expansion sleeve and a locking mechanism, wherein the expansion head, the expansion sleeve and the locking mechanism are sleeved on the screw rod and are sequentially arranged along the extension direction of the screw rod; the outer surface of the second end of the screw rod is provided with a first connecting part, and the locking mechanism is fixedly connected with the screw rod through the first connecting part; a threaded hole is formed in the second end of the screw rod along the axial direction of the screw rod, and one end of the ejector rod is fixedly connected with the screw rod through the threaded hole;
one end of the expansion head is of a conical structure, the diameter of the small-diameter end of the conical structure is smaller than the inner diameter of the expansion sleeve, and the diameter of the large-diameter end of the conical structure is larger than the inner diameter of the expansion sleeve.
And a plurality of openings are distributed at equal intervals along the circumferential direction of one end of the expansion sleeve close to the expansion head, and the length direction of each opening extends along the axial direction of the expansion sleeve.
Wherein, the length of the gap is greater than the length of the conical structure.
The outer surface of the first end of the screw rod is provided with a second connecting part, and the expansion head is movably connected with the screw rod through the second connecting part.
The second connecting part is of an external thread structure.
The first end of the screw rod is provided with a clamping part, and the expansion head is provided with an operation part.
The locking mechanism comprises a spring and a locking nut, one end of the locking nut is fixedly connected with one end of the spring, the spring is sleeved on the screw rod and located in the expansion sleeve, and the locking nut is fixedly connected with the screw rod through the first connecting portion.
Wherein the outer diameter of the locking nut is larger than the inner diameter of the expansion sleeve.
Wherein the outer diameter of the expansion sleeve is smaller than the inner diameter of the impeller.
The magnetic suspension blower impeller ejection device is simple in structure, safe and convenient to use and low in manufacturing cost, can effectively eliminate potential safety hazards during operation of workers, and greatly improves the impeller dismounting efficiency.
Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 schematically shows a structural view of a magnetic levitation blower impeller ejection device of the present invention;
fig. 2 schematically shows an internal structural view of the magnetic levitation blower impeller ejection device of the present invention;
FIG. 3 schematically illustrates a structural view of the locking mechanism;
fig. 4 is a schematic view illustrating a use state of the magnetic levitation blower impeller ejection device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The inventor utilizes the inflation head that has the taper structure to make the inflation cover expand gradually, promotes rotor and impeller phase separation through the change of inflation cover external diameter, reaches the purpose of dismantling the impeller fast, and the operation is quick, convenient, and the security is high, can promote the security and the efficiency that the impeller was dismantled greatly.
The magnetic suspension blower impeller ejecting device provided by the invention is explained in detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a specific embodiment of the magnetic suspension blower impeller ejection device of the present invention, fig. 2 shows a schematic structural diagram of an internal structure of the magnetic suspension blower impeller ejection device of the embodiment, and with reference to fig. 1 and fig. 2, the magnetic suspension blower impeller ejection device includes a screw rod 1, an ejector rod 5, and an expansion head 2, an expansion sleeve 3, and a locking mechanism 4, which are sleeved on the screw rod 1 and are sequentially arranged along an extending direction of the screw rod 1. The expansion head 2 is sleeved at the first end of the screw rod 1 and can move along the axial direction of the screw rod 1. Specifically, when moving along the axial direction of the screw rod 1, the expansion head 2 can push the expansion sleeve 3 towards the locking mechanism 4, the locking mechanism 4 is utilized to limit the expansion sleeve 3, and then the expansion head 2 continuously moves to enable the expansion sleeve 3 to expand gradually until the impeller is separated from the rotor, so that the purpose of detaching the impeller is achieved. The outer surface of the second end of the screw rod 1 is provided with a first connecting part 11, and the locking mechanism 4 is fixedly connected with the screw rod 1 through the first connecting part 11. Illustratively, the first connection portion 11 may be an external thread structure, and the locking mechanism 4 is provided with an internal thread matching the first connection portion 11, for example, the first connection portion 11 is an external thread of M8, and the locking mechanism 4 is provided with an internal thread of M8. The screw rod 1 and the locking mechanism 4 are fixed through threaded connection, so that the purpose that the locking mechanism 4 limits the expansion sleeve 3 is achieved.
A threaded hole 12 is formed in the second end of the screw rod 1 along the axial direction of the screw rod 1, one end of the ejector rod 5 is fixedly connected with the screw rod 1 through the threaded hole 12, and the central axis of the ejector rod 5 and the central axis of the screw rod 1 are on the same straight line. Illustratively, the threaded hole 12 is an M5 internal thread, and one end of the top rod 5 is provided with the M5 internal thread.
In this scheme, the one end of inflation head 2 is tapered structure 21, and the diameter of the minor diameter end of tapered structure 21 is less than the internal diameter of inflation cover 3, and the diameter of the major diameter end of tapered structure 21 is greater than the internal diameter of inflation cover 3 to guarantee that the tip of inflation head 2 can get into smoothly in the inflation cover 3, thereby utilize tapered structure 21 to back up inflation cover 3, realize that inflation cover 3 expands gradually, the external diameter of inflation cover 3 increases gradually promptly.
Furthermore, a plurality of notches 31 are distributed at equal intervals along the circumferential direction of one end of the expansion sleeve 3 close to the expansion head 2, and the length direction of the notches 31 extends along the axial direction of the expansion sleeve 3. Through a plurality of gaps 31, the expansion of the expansion sleeve 3 can be smoothly pushed by the conical structure 21, so that the outer diameter of the end part of the expansion sleeve 3 is gradually increased, and the purpose of pushing the impeller to be separated from the rotor is achieved.
In an alternative embodiment, the length of the gap 31 is greater than the length of the cone-shaped structure 21 to ensure that the expansion range of the expansion shell 3 is large enough to ensure that the rotor can be separated from the impeller.
In the scheme, the first end outer surface of the screw rod 1 is provided with a second connecting part 13, and the expansion head 2 is movably connected with the screw rod 1 through the second connecting part 13. Illustratively, the second connection portion 13 is an external thread structure. The end, opposite to the conical structure 21, of the expansion head 2 is provided with an internal thread matched with the second connecting portion 13, the expansion head 2 is connected with the second connecting portion 13 through the internal thread in a threaded manner to realize axial rotation and sliding along the screw rod 1, the external diameter of the expansion sleeve 3 can be forced to be gradually increased along the axial direction of the screw rod 1, and meanwhile, the expansion head 2 is limited through the threaded connection, so that the expansion sleeve 3 is ensured to be in an expansion state and continue in the expansion state, and the rotor and the impeller are ensured to be separated.
For convenience of operation, in an exemplary embodiment, a clamping portion 14 is provided at the first end of the screw rod 1, and the clamping portion 14 may be two symmetrical planes machined on the outer diameter of the screw rod 1, or four planes or an outer hexagonal cylindrical structure machined on the outer diameter of the screw rod 1, so as to position the screw rod 1 in the radial direction and the circumferential direction during application. Further, an operating part 22 is arranged on the expansion head 2, and the operating part 22 may also be two symmetrical planes or an outer hexagonal cylinder or other structures, so as to drive the expansion head 2 to stably move along the axial direction of the screw rod 1.
Fig. 3 shows a schematic structural diagram of the locking mechanism 4 in an embodiment, in which the locking mechanism 4 includes a spring 41 and a locking nut 42, and one end of the locking nut 42 is fixedly connected to one end of the spring 41, for example, by welding. The spring 41 is sleeved on the screw rod 1 and is positioned in the expansion sleeve 3, and the locking nut 42 is fixedly connected with the screw rod 1 through the first connecting part 11, so that the expansion sleeve 3 is limited.
It should be noted that the length of the spring 41 is less than or equal to the length of the expansion shell 3 and greater than the difference between the length of the expansion shell 3 and the length of the cone-shaped structure 21. In practical application, when the expansion head 2 moves towards the expansion sleeve 3 along the axial direction of the screw rod 1, the conical structure 21 enters the expansion sleeve 3, the external diameter of the expansion sleeve 3 is promoted to be increased by utilizing the gaps 31, and meanwhile, the spring 41 is compressed; when the expansion sleeve is withdrawn, the expansion head 2 is ejected out under the action of the elastic restoring force of the spring 41, and the expansion sleeve 3 is restored.
Further, the outer diameter of the locking nut 42 is larger than the inner diameter of the expansion sleeve 3, and preferably, the outer diameter of the locking nut 42 is larger than or equal to the outer diameter of the expansion sleeve 3, so as to ensure the stability of the locking nut 42 in limiting the expansion sleeve 3.
Fig. 4 is a schematic view illustrating a use state of the magnetic suspension blower impeller ejection device of the present invention, and referring to fig. 1, fig. 2 and fig. 4, in the process of detaching the impeller, one end of the ejector rod 5 of the impeller ejection device of the present invention is inserted into the rotor 7 through the mounting hole of the impeller 6, the ejector rod 5 is used to push the rotor 7, and then the clamping portion 14 of the lead screw 1 is clamped by a corresponding tool (such as a pincer, a flat angle wrench, an inner four corner wrench, an inner hexagonal wrench, or the like) to ensure that the lead screw 1 does not rotate during the operation process, the operation portion 22 of the expansion head 2 is clamped by the tool to drive the expansion head 2 to push the expansion sleeve 3 along the lead screw 1 until the conical structure 21 of the expansion head 2 compresses the spring 41 and enters the expansion sleeve 3, the opening 31 of the expansion sleeve 3 is opened and expanded, so that the outer diameter of the expansion sleeve 3 is gradually increased, until the inner diameter of the expansion sleeve 3 is pushed against the inner diameter of the impeller 6 and the inner diameter of the impeller 6 is also increased synchronously, and the impeller 6 is separated from the rotor 7, at this time, the impeller 6 is taken off from the rotor 7 by clamping the lead screw 1; and then the conical structure 21 of the expansion head 2 is withdrawn from the expansion sleeve 3, the expansion sleeve 3 is restored to the original state, and the impeller ejection device is taken out of the impeller 6. Therefore, the impeller ejection device is simple, rapid and safe to operate, and the safety and the working efficiency of impeller disassembly can be greatly improved.
In order to ensure the impeller is smoothly disassembled, the outer diameter of the expansion sleeve 3 is smaller than the inner diameter of the impeller 6, and the sum of the thickness of the expansion sleeve 3 and the major diameter of the conical structure 21 of the expansion head 2 is larger than the inner diameter of the impeller 6.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The magnetic suspension blower impeller ejection device is characterized by comprising a screw rod (1), an ejector rod (5), an expansion head (2), an expansion sleeve (3) and a locking mechanism (4), wherein the expansion head (2) is sleeved on the screw rod (1) and is sequentially arranged along the extension direction of the screw rod (1), the expansion sleeve (3) is sleeved on the first end of the screw rod (1), and the expansion head (2) can be movably arranged along the axial direction of the screw rod (1); the outer surface of the second end of the screw rod (1) is provided with a first connecting part (11), and the locking mechanism (4) is fixedly connected with the screw rod (1) through the first connecting part (11); a threaded hole (12) is formed in the second end of the screw rod (1) along the axial direction of the screw rod (1), one end of the ejector rod (5) is fixedly connected with the screw rod (1) through the threaded hole (12), and the other end of the ejector rod (5) is used for penetrating through a mounting hole of the impeller (6), extending into the rotor (7) and abutting against the rotor (7);
one end of the expansion head (2) is a conical structure (21), the diameter of the small-diameter end of the conical structure (21) is smaller than the inner diameter of the expansion sleeve (3), and the diameter of the large-diameter end of the conical structure (21) is larger than the inner diameter of the expansion sleeve (3);
locking mechanism (4) include spring (41) and lock nut (42), the one end of lock nut (42) with the one end fixed connection of spring (41), spring (41) cover is established on lead screw (1), and is located in inflation cover (3), lock nut (42) pass through first connecting portion (11) with lead screw (1) fixed connection.
2. The magnetic suspension blower impeller ejection device according to claim 1, characterized in that a plurality of notches (31) are distributed at equal intervals along the circumferential direction of one end of the expansion sleeve (3) close to the expansion head (2), and the length direction of the notches (31) extends along the axial direction of the expansion sleeve (3).
3. The magnetic levitation blower impeller ejection device according to claim 2, wherein the length of the gap (31) is greater than the length of the conical structure (21).
4. The magnetic levitation blower impeller ejection device according to claim 1, characterized in that the first end outer surface of the screw rod (1) is provided with a second connection portion (13), and the expansion head (2) is movably connected with the screw rod (1) through the second connection portion (13).
5. The magnetic levitation blower impeller ejection device according to claim 4, wherein the second connection portion (13) is of an externally threaded configuration.
6. Magnetic levitation blower impeller ejection device according to claim 1, characterized in that the first end of the screw (1) is provided with a clamping portion (14) and the expansion head (2) is provided with an operating portion (22).
7. The magnetic levitation blower impeller ejection device according to claim 1, wherein the locking nut (42) has an outer diameter larger than an inner diameter of the expansion sleeve (3).
8. The magnetic levitation blower impeller ejection device according to claim 1, wherein the outer diameter of the expansion sleeve (3) is smaller than the inner diameter of the impeller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409632.3A CN112894711B (en) | 2021-04-16 | 2021-04-16 | Magnetic suspension blower impeller ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409632.3A CN112894711B (en) | 2021-04-16 | 2021-04-16 | Magnetic suspension blower impeller ejecting device |
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| Publication Number | Publication Date |
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| CN112894711A CN112894711A (en) | 2021-06-04 |
| CN112894711B true CN112894711B (en) | 2022-10-21 |
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| CN202110409632.3A Active CN112894711B (en) | 2021-04-16 | 2021-04-16 | Magnetic suspension blower impeller ejecting device |
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Citations (3)
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| CN202279132U (en) * | 2011-11-03 | 2012-06-20 | 徐州雷曼机械科技有限公司 | Buffering device of brake of mining monorail crane |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN112594200A (en) * | 2020-12-02 | 2021-04-02 | 浙江上风高科专风实业股份有限公司 | Impeller locking structure of magnetic suspension air-blower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203141415U (en) * | 2012-12-14 | 2013-08-21 | 中航商用航空发动机有限责任公司 | Puller for hollow guide tube |
| CN203266139U (en) * | 2013-02-25 | 2013-11-06 | 重庆衡山机械有限责任公司 | Clamp for processing impeller |
| CN104439363A (en) * | 2014-12-05 | 2015-03-25 | 重庆耀勇减震器有限公司 | Expansion clamping device |
| CN106194849B (en) * | 2015-04-30 | 2024-04-09 | 贵州盘江矿山机械有限公司 | Draught fan rotor impeller dismounting device |
| CN205889024U (en) * | 2016-08-18 | 2017-01-18 | 泰山玻璃纤维有限公司 | Embedded spare part dismounting device of wire drawing machine |
| CN111590508A (en) * | 2020-06-13 | 2020-08-28 | 中国长江动力集团有限公司 | Hydraulic tool for installing and dismantling impeller |
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2021
- 2021-04-16 CN CN202110409632.3A patent/CN112894711B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202279132U (en) * | 2011-11-03 | 2012-06-20 | 徐州雷曼机械科技有限公司 | Buffering device of brake of mining monorail crane |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN112594200A (en) * | 2020-12-02 | 2021-04-02 | 浙江上风高科专风实业股份有限公司 | Impeller locking structure of magnetic suspension air-blower |
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| CN112894711A (en) | 2021-06-04 |
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Denomination of invention: An impeller ejection device of magnetic suspension blower Effective date of registration: 20230104 Granted publication date: 20221021 Pledgee: Ping An Bank Co.,Ltd. Weifang Branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023370000002 |
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