CN210164787U - Rotary main shaft of rotor pump - Google Patents
Rotary main shaft of rotor pump Download PDFInfo
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- CN210164787U CN210164787U CN201920715831.5U CN201920715831U CN210164787U CN 210164787 U CN210164787 U CN 210164787U CN 201920715831 U CN201920715831 U CN 201920715831U CN 210164787 U CN210164787 U CN 210164787U
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Abstract
The utility model discloses a rotary main shaft of impeller pump, include: a connecting section for connecting with an external power structure; the gear fixing section is arranged at the left end of the connecting section, and is provided with a plurality of flat key grooves which are matched with flat keys of the gear to be fixed so as to fix the gear; one end of the bearing fixing section is connected with the gear fixing section; the rotor fixed section comprises a connecting end and a fixed end, and the connecting end is connected with the bearing fixed section. The utility model discloses set up a plurality of navigation keys and replace being connected between current flat keyway in order to realize rotating spindle and the rotor on the outer lane of rotor canned paragraph, make things convenient for quick, the accurate location of rotating spindle and rotor, the combination of rotating spindle and rotor is inseparabler simultaneously, it is more firm to connect, avoids rotating spindle when having power input, and the relative mounting between the rotor, prevent that the long-term use of impeller pump from arousing droing of rotor and rotating spindle, can effectively prolong the life of impeller pump.
Description
Technical Field
The utility model relates to a main shaft technical field especially relates to a rotary main shaft of impeller pump.
Background
The rotor pump is a rotary displacement pump, has positive displacement property, and the flow rate of the pump does not change along with the change of back pressure. The motion of rotor needs the rotation main shaft to drive, and rotation main shaft is connected with external structure and rotor pump inner structure to realize the motion of whole rotor pump. The existing rotor pump main shaft is connected with a rotor, a gear and an external power structure by arranging a flat key groove on a main shaft body and utilizing a flat key matched with the flat key groove, but the existing rotor pump main shaft is connected with the rotor by the flat key, the rotary main shaft and the rotor are not accurately positioned and stressed unevenly, the rotor is easy to fall off from the rotary main shaft, and the service life of the rotor pump is easily shortened.
Disclosure of Invention
The utility model aims at prior art's defect, provide a rotary main shaft of rotor pump, the rotor canned paragraph uses the navigation key that a plurality of archs sunken interval links to each other to realize being connected between rotor and the main shaft, replaces the main shaft that current rotor pump used and fixes a position when utilizing the parallel key to produce with the rotor installation inaccurate and easily rock, and the inhomogeneous scheduling problem of atress.
In order to realize the above purpose, the utility model adopts the following technical scheme:
a rotary shaft of a rotary pump comprising:
a connecting section for connecting with an external power structure;
the gear fixing section is arranged at the left end of the connecting section, and is provided with a plurality of flat key grooves which are matched with flat keys of the gear to be fixed so as to fix the gear;
one end of the bearing fixing section is connected with the gear fixing section;
the rotor fixed section comprises a connecting end and a fixed end, the connecting end is connected with the other end of the bearing fixed section, the fixed end is used for being connected with the rotor, and a plurality of positioning keys are arranged on the outer ring of the fixed end.
Preferably, the gear fixing section, the bearing fixing section and the rotor fixing section are all provided with shaft shoulders.
Preferably, a plurality of navigation keys are formed by a plurality of bulges and sunken, and a plurality of bulges are connected with sunken interval to evenly distributed on the fixed end outer ring.
Preferably, the number of the bearing fixing sections is at least two, and the bearing fixing sections comprise first bearing fixing sections and second bearing fixing sections, the first bearing fixing sections are arranged between the connecting sections and the gear fixing sections, and the second bearing fixing sections are arranged between the gear fixing sections and the rotor fixing sections.
Preferably, a framework oil seal fixing section is arranged between the connecting section and the first bearing section.
Preferably, the plurality of flat key grooves comprise a plurality of first flat key grooves and a plurality of second flat key grooves, the plurality of first flat key grooves are respectively arranged at two ends of the gear fixing section, the second flat key grooves are arranged in the middle of the gear fixing section, a through groove is formed between the second flat key grooves and one of the first flat key grooves, and the bottom of each second key groove is lower than the bottom of the corresponding through groove.
Preferably, a fixing key groove is formed in the connecting section.
Preferably, be provided with the ring structure between link and the stiff end, ring structure diameter size is in the stiff end with link diameter size.
Preferably, the fixed end further comprises an inner ring, and an aperture is formed in the inner ring.
Compared with the prior art, the utility model discloses the rotatory main shaft of rotor pump is provided with the linkage segment, the gear canned paragraph, bearing canned paragraph and rotor canned paragraph, it replaces current flat keyway in order to realize being connected between rotatory main shaft and the rotor to set up a plurality of navigation keys on the outer lane of rotor canned paragraph, this a plurality of navigation keys are by the arch and the sunken formation that a plurality of intervals link to each other, insert in rotor and the combination position of rotatory main shaft can be through this a plurality of navigation keys, make things convenient for the speed of rotatory main shaft and rotor, accurate location, the combination of rotatory main shaft and rotor is inseparabler simultaneously, it is more firm to connect, avoid rotatory main shaft when having power input, and the relative fixation between the rotor, prevent that the long-term use of rotor pump from arousing droing of rotor and rotatory main shaft, can effectively prolong the life.
Drawings
Fig. 1 is a schematic structural view of a rotating main shaft of a rotor pump according to a first embodiment;
FIG. 2 is a schematic structural diagram of another perspective view of a rotating main shaft of a rotor pump according to an embodiment;
fig. 3 is a top view of a rotating main shaft of a rotor pump according to the first embodiment.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
The present embodiment provides a rotary main shaft of a rotor pump, as shown in fig. 1 to 3, including:
a connection section 100 for connection with an external power structure;
the gear fixing section 200 is arranged at the left end of the connecting section 100, and a plurality of flat key slots 210 are arranged on the gear fixing section 200 and matched with the flat keys of the gear to be fixed so as to fix the gear;
a bearing fixing section 300, one end of which is connected with the gear fixing section 200;
the rotor fixing section 400 includes a connecting end 410 and a fixing end 420, the connecting end 410 is connected to the other end of the bearing fixing section 300, the fixing end 420 is used for being connected to the rotor, and a plurality of positioning keys 421a are arranged on an outer ring 421 of the fixing end.
In order to solve the problems of inaccurate positioning, easy shaking, uneven stress and the like when a main shaft used by a rotating main shaft of the existing rotor pump is connected with other structures in the rotor pump by utilizing a flat key, the rotating main shaft of the rotor pump provided by the embodiment is provided with a connecting section, a gear fixing section, a bearing fixing section and a rotor fixing section, a plurality of positioning keys are arranged on the outer ring of the rotor fixing section to replace the existing flat key slot so as to realize the connection between the rotating main shaft and the rotor, the plurality of positioning keys are formed by a plurality of bulges and depressions which are connected at intervals, the combination part of the rotor and the rotating main shaft can be inserted through the plurality of positioning keys, the rotating main shaft and the rotor can be conveniently and quickly and accurately positioned, meanwhile, the rotating main shaft and the rotor are combined more tightly, the connection is more stable, and the relative fixation between the rotating main shaft and the rotor is avoided when power is, the rotor pump is prevented from falling off of the rotor and the rotating main shaft due to long-term use, and the service life of the rotor pump can be effectively prolonged.
Preferably, the gear fixing section 200, the bearing fixing section 300 and the rotor fixing section 400 are all provided with a shaft shoulder 220.
The shoulder refers to the part of the stepped shaft with variable section size. It is divided into a positioning shaft shoulder and a transition shaft shoulder according to the function. The positioning shaft shoulder plays a positioning role; the transition shaft shoulder is a process shaft shoulder which is arranged for facilitating the disassembly and assembly of parts on a shaft or avoiding stress concentration. This embodiment makes things convenient for the connection of each structure in the rotor pump on corresponding canned paragraph to be fixed through being provided with the shaft shoulder on each canned paragraph.
Preferably, the positioning keys 421a are formed by a plurality of protrusions and depressions, and the protrusions and depressions are connected at intervals and uniformly distributed on the fixed end outer ring 421.
In a preferred embodiment of this embodiment, in order to facilitate the processing of the rotating spindle, the positioning keys on the outer ring of the fixed end are formed by milling.
Preferably, the number of the bearing fixing sections 300 is at least two, and the bearing fixing sections include a first bearing fixing section and a second bearing fixing section, the first bearing fixing section is arranged between the connecting section and the gear fixing section, and the second bearing fixing section is arranged between the gear fixing section and the rotor fixing section.
Preferably, a framework oil seal fixing section 500 is arranged between the connecting section 100 and the first bearing section.
Preferably, the plurality of flat key grooves 210 include a plurality of first flat key grooves 211 and a plurality of second flat key grooves 212, the plurality of first flat key grooves 211 are respectively disposed at two ends of the gear fixing section 200, the second flat key groove 212 is disposed in the middle of the gear fixing section 200, a through groove 213 is disposed between the second flat key groove and one of the first flat key grooves 211, and the bottom of the second key groove 212 is lower than the bottom of the through groove 213.
The first flat key groove is arranged at two ends of the gear fixing section, and the first key groove is a half key groove, so that the principle of arrangement is that two ends of the gear fixing section are connected with bearing fixing sections, bearings are fixed on the bearing fixing sections, when the bearings are damaged or need to be replaced, the first key groove is convenient for placing tools, the bearings fixed on the bearing fixing sections can be pried out quickly, and the bearings are convenient to take out and replace; the second keyway is used for matching with the flat key that corresponds, realize the fixed of gear canned paragraph and gear, the second keyway of this embodiment recalls with one of them flat keyway, and form logical groove, and lead to the groove height and be higher than the flat keyway height of second, stop separation blade to the flat keyway tip of second is put into through this logical groove to the convenience, can effectively place not hard up between gear and the gear canned paragraph, it leads to in order to form logical groove to utilize the second to lead to the logical groove with the recalling of first logical groove, be convenient for the processing of the flat keyway of first flat keyway and second, need not to set up the keyway again and increase the processing step, and do benefit to and place the stop separation blade.
Preferably, the connecting section 100 is provided with a fixing key groove 110.
Preferably, a circular ring structure 430 is disposed between the connecting end 410 and the fixing end 420, and the diameter of the circular ring structure 430 is between the diameter of the fixing end 410 and the diameter of the connecting end 420.
Preferably, the fixing end 410 further includes an inner ring 422, and an aperture 423 is formed in the inner ring 422.
The rotatory main shaft of this embodiment rotor pump is provided with the linkage segment, the gear canned paragraph, bearing canned paragraph and rotor canned paragraph, it replaces current flat keyway in order to realize being connected between rotatory main shaft and the rotor to set up a plurality of navigation keys on the outer lane of rotor canned paragraph, this a plurality of navigation keys are by the protruding and sunken formation that a plurality of intervals link to each other, insert in rotor and the combination position of rotatory main shaft can be through this a plurality of navigation keys, make things convenient for the speed of rotatory main shaft and rotor, accurate location, the combination of rotatory main shaft and rotor is inseparabler simultaneously, it is more firm to connect, avoid rotatory main shaft when having power input, and the relative fixity between the rotor, prevent that the long-term use of rotor pump from arousing droing of rotor and rotatory main shaft, can effectively prolong the life of.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A rotary shaft of a rotary pump, comprising:
a connecting section for connecting with an external power structure;
the gear fixing section is arranged at the left end of the connecting section, and is provided with a plurality of flat key grooves which are matched with flat keys of the gear to be fixed so as to fix the gear;
one end of the bearing fixing section is connected with the gear fixing section;
the rotor fixed section comprises a connecting end and a fixed end, the connecting end is connected with the other end of the bearing fixed section, the fixed end is used for being connected with the rotor, and a plurality of positioning keys are arranged on the outer ring of the fixed end.
2. A rotary shaft of a rotor pump according to claim 1, wherein:
and the gear fixing section, the bearing fixing section and the rotor fixing section are all provided with shaft shoulders.
3. A rotary shaft of a rotor pump according to claim 1, wherein:
a plurality of navigation keys are formed by a plurality of bulges and sunken, a plurality of bulges are connected with sunken intervals, and evenly distributed on the fixed end outer ring.
4. A rotary shaft of a rotor pump according to claim 1, wherein:
the bearing fixing sections are at least two and comprise first bearing fixing sections and second bearing fixing sections, the first bearing fixing sections are arranged between the connecting sections and the gear fixing sections, and the second bearing fixing sections are arranged between the gear fixing sections and the rotor fixing sections.
5. A rotary shaft of a rotor pump according to claim 4, wherein:
and a framework oil seal fixing section is arranged between the connecting section and the first bearing section.
6. A rotary shaft of a rotor pump according to claim 1, wherein:
the plurality of flat key grooves comprise a plurality of first flat key grooves and a plurality of second flat key grooves, the plurality of first flat key grooves are respectively arranged at two ends of the gear fixing section, the second flat key grooves are arranged in the middle of the gear fixing section, a through groove is formed between the second flat key grooves and one of the first flat key grooves, and the bottom of each second flat key groove is lower than the bottom of the corresponding through groove.
7. A rotary shaft of a rotor pump according to claim 1, wherein said connecting section is provided with a fixing key groove.
8. A rotary shaft of a rotor pump according to claim 1, wherein:
be provided with the ring structure between link and the stiff end, ring structure diameter size is in the stiff end with link diameter size is between.
9. A rotary spindle for a rotodynamic pump as claimed in claim 1, wherein said fixed end further includes an inner race having an aperture formed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920715831.5U CN210164787U (en) | 2019-05-17 | 2019-05-17 | Rotary main shaft of rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920715831.5U CN210164787U (en) | 2019-05-17 | 2019-05-17 | Rotary main shaft of rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210164787U true CN210164787U (en) | 2020-03-20 |
Family
ID=69792235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920715831.5U Active CN210164787U (en) | 2019-05-17 | 2019-05-17 | Rotary main shaft of rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210164787U (en) |
-
2019
- 2019-05-17 CN CN201920715831.5U patent/CN210164787U/en active Active
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