CN218862913U - Lengthened shaft structure of pump - Google Patents
Lengthened shaft structure of pump Download PDFInfo
- Publication number
- CN218862913U CN218862913U CN202222921076.0U CN202222921076U CN218862913U CN 218862913 U CN218862913 U CN 218862913U CN 202222921076 U CN202222921076 U CN 202222921076U CN 218862913 U CN218862913 U CN 218862913U
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- taper
- hole
- connecting sleeve
- pump
- motor connecting
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Abstract
The utility model discloses a lengthened shaft structure of a pump, which comprises a pump shaft, a middle connecting block, a motor connecting sleeve and a fastener; the front end of the pump shaft is provided with a thread; the rear end of the pump shaft is connected with the front end of the middle connecting block; the rear end of the middle connecting block is provided with a taper hole; two half threaded holes are symmetrically arranged on the inner wall of the taper hole; two half unthreaded holes are symmetrically arranged on the taper excircle of the motor connecting sleeve; the taper of the taper excircle of the motor connecting sleeve is consistent with the taper of the taper hole; after the motor connecting sleeve is sleeved in the taper hole, the half threaded hole is aligned and matched with the half optical hole, and the motor connecting sleeve is fixed by screwing the fastener into the half threaded hole; the utility model has the characteristics of structure size is short, processing is convenient, the runout precision is high, save material, simple to operate etc.
Description
Technical Field
The utility model relates to a pump technical field, especially are long axle construction of pump.
Background
At present, the axle and the shaft coupling of pump generally all adopt two parts respectively on the market, link together through the bolt, and there is certain defect in such structure: the material waste, the processing consumption and the radial run-out precision are difficult to ensure. It is desirable to provide an extended shaft structure of a pump to solve the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lengthened axial structure of pump, it has that structure size is short, processing is convenient, characteristics such as runout precision is high, save material, simple to operate.
The utility model discloses a following technical scheme realizes:
a lengthened shaft structure of a pump comprises a pump shaft, an intermediate connecting block, a motor connecting sleeve and a fastener; the front end of the pump shaft is provided with a thread; the rear end of the pump shaft is connected with the front end of the middle connecting block; the rear end of the middle connecting block is provided with a taper hole; two half threaded holes are symmetrically arranged on the inner wall of the taper hole; two half unthreaded holes are symmetrically arranged on the taper excircle of the motor connecting sleeve; the taper of the taper excircle of the motor connecting sleeve is consistent with the taper of the taper hole; after the motor connecting sleeve is sleeved in the taper hole, the half threaded hole is in aligned fit with the half optical hole, and the motor connecting sleeve is fixed by screwing the fastener into the half threaded hole.
Further, a cylindrical step is arranged at the rear end of the thread; a first key groove for installing an impeller is formed in the cylindrical step; and the impeller nut is screwed into the thread and then fixes the impeller.
Further, the intermediate connecting block is made of 45# steel; the front end of the middle connecting block is welded with the pump shaft through friction welding.
Further, the inner circular hole of the motor coupling sleeve is a cylindrical hole; one end of the cylindrical hole is provided with a second key groove, and the other end of the cylindrical hole is cut open to form an open groove.
Further, the fastener is a screw.
Further, the pump shaft is made of stainless steel.
The utility model has the advantages that:
the utility model is provided with the middle connecting block and the motor connecting sleeve, and the rear end of the middle connecting block is provided with a taper hole; two half threaded holes are symmetrically arranged on the inner wall of the tapered hole; two half unthreaded holes are symmetrically arranged on the taper excircle of the motor connecting sleeve; after the motor connecting sleeve is sleeved in the taper hole, the half-thread hole is aligned and matched with the half-thread hole, and the motor connecting sleeve is screwed into the half-thread hole through a fastener to be fixed; through the taper fit of middle hookup piece and motor hookup cover, the runout of whole part has obtained the assurance, the utility model has the characteristics of structure size is short, processing is convenient, the runout precision is high, save material.
Drawings
Fig. 1 is a schematic view of an elongated shaft structure of a pump according to an embodiment of the present invention;
FIG. 2 is a view from direction K of FIG. 1;
FIG. 3 is a schematic view of the pump shaft and the intermediate coupling block of FIG. 1 welded together;
FIG. 4 is a schematic view of the structure of the motor coupling sleeve of FIG. 1;
fig. 5 is an M-direction view of fig. 4.
In the drawings: 1-a pump shaft; 2-an intermediate coupling block; 3-motor coupling sleeve; 4-screws; 5-taper hole; 6-half threaded hole; 7-taper excircle; 8-half unthreaded hole; 9-a second keyway; 10-open grooves.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, and the present invention will be described in detail with reference to the accompanying drawings and specific embodiments below with the description of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, back, upper end, lower end, top, bottom … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection or a releasable connection, or may be integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, descriptions in the present application as to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 5, an extension shaft structure of a pump comprises a pump shaft 1, an intermediate coupling block 2, a motor coupling sleeve 3 and a fastener; the front end of the pump shaft 1 is provided with threads; the rear end of the pump shaft 1 is connected with the front end of the middle connecting block 2; the rear end of the middle connecting block 2 is provided with a taper hole 5; two half threaded holes 6 are symmetrically arranged on the inner wall of the taper hole 5; two half unthreaded holes 8 are symmetrically arranged on a taper excircle 7 of the motor connecting sleeve 3; the taper of the taper excircle 7 of the motor connecting sleeve 3 is consistent with the taper of the taper hole 5; after the motor connecting sleeve 3 is sleeved in the taper hole 5, the half threaded hole 6 is aligned and matched with the half unthreaded hole 8, and the motor connecting sleeve 3 is fixed by screwing the fastener into the half threaded hole 6.
The utility model is provided with the middle connecting block 2 and the motor connecting sleeve 3, and the rear end of the middle connecting block 2 is provided with the taper hole 5; two half threaded holes 6 are symmetrically arranged on the inner wall of the tapered hole 5; two half unthreaded holes 8 are symmetrically arranged on a taper excircle 7 of the motor connecting sleeve 3; after the motor connecting sleeve 3 is sleeved in the taper hole 5, the half-threaded hole 6 is aligned and matched with the half-unthreaded hole 8, and the motor connecting sleeve 3 is fixed by screwing a fastener into the half-threaded hole 6; through the taper fit of middle hookup piece 2 and motor hookup cover 3, the runout of whole part has obtained the assurance, the utility model has the characteristics of structural dimension is short, processing is convenient, runout precision is high, save material.
Specifically, in the embodiment, a cylindrical step is arranged at the rear end of the thread; a first key groove for installing an impeller is formed in the cylindrical step; and the impeller nut is screwed into the thread and then fixes the impeller.
Specifically, in the scheme of the embodiment, the intermediate connecting block 2 is made of 45# steel; the front end of the middle coupling block 2 is welded with the pump shaft 1 through friction welding.
Specifically, in the embodiment, the inner circular hole of the motor coupling sleeve 3 is a cylindrical hole; one end of the cylindrical hole is provided with a second key groove 9, and the other end of the cylindrical hole is cut open to form an open groove 10.
Specifically, in this embodiment, the fastening member is a screw 4.
Specifically, in the embodiment, the pump shaft 1 is made of stainless steel.
The utility model discloses during the installation: firstly, the direction of a key on a motor shaft is sleeved into a motor connecting sleeve 3, then the motor connecting sleeve 3 is sleeved into a middle connecting block 2 welded with a pump shaft 1, and the half threaded hole 6 is aligned with the half unthreaded hole 8, and a screw 4 is screwed into the half threaded hole 6 and screwed tightly. Thus, under the action of the two screws 4, the motor connecting sleeve 3 is tightly embraced on the motor shaft and transmits torsion, and the radial run-out of the whole part is ensured due to the taper fit of the middle connecting block 2 and the motor connecting sleeve 3; when the motor connecting sleeve needs to be disassembled, the screw 4 is unscrewed and taken down, the middle connecting block 2 is lightly hammered from the rear part, and the motor connecting sleeve 3 can be easily taken out of the middle connecting block 2 due to the taper fit.
As the pump shaft 1 is made of stainless steel and the middle connecting block 2 is made of 45# steel, the material is saved.
Therefore, the utility model has the characteristics of structure size is short, processing is convenient, the runout precision is high, save material, simple to operate etc.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the contents of the present specification should not be construed as limitations of the present invention.
Claims (6)
1. An extension shaft structure of a pump, characterized in that: comprises a pump shaft, a middle connecting block, a motor connecting sleeve and a fastener; the front end of the pump shaft is provided with a thread; the rear end of the pump shaft is connected with the front end of the middle connecting block; the rear end of the middle connecting block is provided with a taper hole; two half threaded holes are symmetrically arranged on the inner wall of the taper hole; two half unthreaded holes are symmetrically arranged on the taper excircle of the motor connecting sleeve; the taper of the taper excircle of the motor connecting sleeve is consistent with the taper of the taper hole; after the motor connecting sleeve is sleeved in the taper hole, the half threaded hole is matched with the half optical hole in an aligning mode, and the motor connecting sleeve is fixed by screwing the fastener into the half threaded hole.
2. An extended shaft structure of a pump according to claim 1, wherein: the rear end of the thread is provided with a cylindrical step; a first key groove for installing an impeller is formed in the cylindrical step; and the impeller nut is screwed into the thread and then fixes the impeller.
3. An elongated shaft structure of a pump according to claim 1, wherein: the middle connecting block is made of 45# steel; the front end of the middle connecting block is welded with the pump shaft through friction welding.
4. An elongated shaft structure of a pump according to claim 1, wherein: the inner circular hole of the motor connecting sleeve is a cylindrical hole; one end of the cylindrical hole is provided with a second key groove, and the other end of the cylindrical hole is cut open to form an open groove.
5. An elongated shaft structure of a pump according to claim 1, wherein: the fastener is a screw.
6. An elongated shaft structure of a pump according to claim 4, wherein: the pump shaft is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222921076.0U CN218862913U (en) | 2022-11-03 | 2022-11-03 | Lengthened shaft structure of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222921076.0U CN218862913U (en) | 2022-11-03 | 2022-11-03 | Lengthened shaft structure of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218862913U true CN218862913U (en) | 2023-04-14 |
Family
ID=87369275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222921076.0U Active CN218862913U (en) | 2022-11-03 | 2022-11-03 | Lengthened shaft structure of pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218862913U (en) |
-
2022
- 2022-11-03 CN CN202222921076.0U patent/CN218862913U/en active Active
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