CN216842238U - Multi-stage axially split pump rotating shaft supporting structure - Google Patents
Multi-stage axially split pump rotating shaft supporting structure Download PDFInfo
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- CN216842238U CN216842238U CN202220217810.2U CN202220217810U CN216842238U CN 216842238 U CN216842238 U CN 216842238U CN 202220217810 U CN202220217810 U CN 202220217810U CN 216842238 U CN216842238 U CN 216842238U
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- butt joint
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Abstract
The utility model discloses a multistage well-opened pump pivot bearing structure, it includes the pump case body, the apparatus further comprises a rotating shaft, first bearing subassembly and second bearing subassembly set up respectively at pump case body both ends, the pivot both ends are blocked respectively and are put on first bearing subassembly and second bearing subassembly, pump case body middle part is provided with the baffle, the baffle middle part is provided with the support ring post, the support annular has been seted up on the support ring post, the pivot runs through the setting of support annular, be provided with the axle sleeve in the pivot, the support ring post is provided with the guide shaft ring in the support annular, the guide shaft ring overlaps to be established outside the axle sleeve. The utility model discloses a set up the baffle at pump case body middle part, the cooperation sets up the support ring post on the baffle, sets up at the support annular internal fixation and leads the axle collar with the cover establish on the axle sleeve that the pivot outside set up, leads the axle collar under the pivot pivoted condition and realizes the supporting effect to the pivot, effectively reduces the bearing capacity of first bearing subassembly and second bearing subassembly, and then improves the life of bearing.
Description
Technical Field
The utility model belongs to the technical field of the centrifugal pump technique and specifically relates to a multistage well turn on pump pivot bearing structure is related to.
Background
In the structural design of the conventional centrifugal pump, an integral rotating shaft is generally adopted, and bearing structures are respectively arranged at two ends of the rotating shaft to realize the supporting and rotating operations of the rotating shaft.
Still be provided with the impeller structure in the pivot, rotate through the impeller and do work to liquid, make its energy increase, and then realize the transport operation to liquid, can produce the reaction force among the liquid transportation process, increase the atress effect to the pivot, and then conduct for the bearing structure who supports the pivot, cause the bearing structure atress increase that the pivot both ends set up, be unfavorable for improving the life of bearing.
Therefore, it is desirable to provide a supporting structure for a rotating shaft of a multi-stage axially split pump to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a multi-stage axially split pump rotating shaft supporting structure aiming at the defects of the prior art, so as to effectively improve the stress effect of the supporting bearings at the two ends of the rotating shaft and prolong the service life of the bearings.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a pump pivot bearing structure opens in multistage, its includes pump case body, pivot, first bearing subassembly and second bearing subassembly set up respectively at pump case body both ends, the pivot both ends are blocked respectively and are put on first bearing subassembly and second bearing subassembly, pump case body middle part is provided with the baffle, the baffle middle part is provided with the support ring post, the support ring groove has been seted up on the support ring post, the pivot runs through the setting of support ring groove, be provided with the axle sleeve in the pivot, the support ring post is provided with the guide shaft ring in supporting the ring inslot fixed, the guide shaft ring overlaps to be established in axle sleeve outside portion.
In one embodiment, the outer side of the guide shaft ring is provided with a ring groove, and a sealing ring is arranged in the ring groove.
In one embodiment, the sealing ring is made of rubber.
In one embodiment, the partition plate divides the inner cavity of the pump casing body into a first chamber and a second chamber, the rotating shaft is provided with a plurality of impellers, and the impellers are distributed in the first chamber and the second chamber.
In one embodiment, a butt joint mechanism is arranged between the rotating shaft and the shaft sleeve, the shaft sleeve is stably clamped on the rotating shaft through the butt joint mechanism, and the shaft sleeve and the rotating shaft synchronously rotate.
In one embodiment, the docking mechanism comprises a docking protrusion arranged on the rotating shaft and a docking groove arranged on the shaft sleeve, and the docking protrusion is in matched docking with the docking groove.
In one embodiment, the docking mechanism comprises a docking groove arranged on the rotating shaft and a docking lug arranged on the shaft sleeve, and the docking lug is in matched docking with the docking groove.
In one embodiment, a gap exists between the shaft sleeve and the shaft guide ring, and the gap between the shaft sleeve and the shaft guide ring is 0.25 mm-0.35 mm.
In one of them embodiment, the pivot outside portion is provided with the stator, the stator card is held in the pump case body, the impeller is arranged in the stator, support ring post both ends extend to respectively to the left and right sides direction and press close to the setting with the stator.
In one embodiment, the first bearing assembly comprises a first throttle plate, a first end cover and a first bearing seat, the first end cover and the first throttle plate are respectively arranged at one end of the pump shell body at intervals, and one end of the rotating shaft penetrates through the first throttle plate, the first end cover and the first bearing seat in sequence and then protrudes out of one side of the first bearing seat; the second bearing assembly comprises a second throttle plate, a second end cover and a second bearing seat, and the other end of the rotating shaft penetrates through the second throttle plate and the second end cover in sequence and then is fixed on the second bearing seat.
To sum up, the utility model relates to a multistage pump pivot bearing structure that opens in middle of through set up the baffle at pump case body middle part, the cooperation sets up the support ring post on the baffle, when the support ring post is run through in the pivot, set up the guide shaft ring at the support annular internal fixation and establish on the axle sleeve that sets up in the pivot outside with the cover, the guide shaft ring realizes the supporting effect to the pivot under the pivot pivoted condition, effectively reduces the bearing capacity of first bearing subassembly and second bearing subassembly, and then improves the life of bearing.
Drawings
Fig. 1 is a schematic structural view of a rotating shaft supporting structure of a multi-stage axially split pump according to the present invention;
fig. 2 is a structural cross-sectional view of a multi-stage axially split pump shaft supporting structure of the present invention;
FIG. 3 is a schematic structural view of the multi-stage axially split pump according to the present invention after the upper housing is hidden in the supporting structure;
fig. 4 is a schematic structural view of the upper housing of the present invention;
fig. 5 is a schematic structural view of the lower housing of the present invention;
fig. 6 is a schematic view of the combination of the first bearing seat and the second bearing seat of the present invention;
FIG. 7 is a schematic structural view of the guide vane of the rotary shaft after being hidden;
fig. 8 is a schematic view of the combination of the shaft sleeve and the guide shaft collar of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 8, the present invention relates to a multi-stage axially split pump pivot supporting structure, which comprises a pump casing body 100, a pivot 200, a first bearing assembly 300 and a second bearing assembly 400, wherein the first bearing assembly 300 and the second bearing assembly 400 are respectively disposed at two ends of the pump casing body 100, two ends of the pivot 200 are respectively clamped on the first bearing assembly 300 and the second bearing assembly 400, one end of the pivot 200 extends out of the first bearing assembly 300 to be connected with an external driving device, and the pivot 200 is driven by the driving device to rotate, so that the pivot 200 rotates under the supporting action of the first bearing assembly 300 and the second bearing assembly 400.
A partition plate 110 is arranged in the middle of the pump casing body 100, the partition plate 110 divides the inner cavity of the pump casing body 100 into a first chamber 120 and a second chamber 130, a plurality of impellers 210 are arranged on the rotating shaft 200, and the impellers 210 are uniformly distributed in the first chamber 120 and the second chamber 130; specifically, when the number of the impellers 210 on the rotating shaft 200 is an odd number, the number of the impellers 210 placed in the first chamber 120 is 1 more than the number of the impellers 210 placed in the second chamber 130, and when the number of the impellers 210 on the rotating shaft 200 is an even number, the number of the impellers 210 placed in the first chamber 120 is the same as the number of the impellers 210 placed in the second chamber 130.
The middle of the partition plate 110 is provided with the support ring column 140, the support ring column 140 is of a hollow structure, and the rotating shaft 200 penetrates through the support ring column 140, so that the support ring column 140 has a support effect on the rotating shaft 200, when the rotating shaft 200 rotates, the support ring column 140 is matched with the first bearing assembly 300 and the second bearing assembly 400, so that the support effect on the rotating shaft 200 can be easily realized, the support pressure of the first bearing assembly 300 and the second bearing assembly 400 is effectively reduced, and the service lives of the first bearing assembly 300 and the second bearing assembly 400 are further prolonged.
Specifically, the support ring groove 141 is formed in the support ring column 140, and the rotating shaft 200 penetrates through the support ring groove 141, so that the support ring column 140 can support the rotating shaft 200, when the rotating shaft 200 rotates, the support ring column 140 can easily support the rotating shaft 200 by matching with the first bearing assembly 300 and the second bearing assembly 400, the support pressure of the first bearing assembly 300 and the second bearing assembly 400 is effectively reduced, and the service lives of the first bearing assembly 300 and the second bearing assembly 400 are further prolonged.
The rotating shaft 200 is provided with a shaft sleeve 500, the supporting ring column 140 is fixedly provided with a guide ring shaft ring 600 in the supporting ring groove 141, and the guide ring shaft ring 600 is sleeved at the outer side part of the shaft sleeve 500; specifically, the guide ring shaft 600 is provided with a pin hole, and the guide ring shaft 600 can be fixed on the support ring column 140 through a pin to prevent the guide ring shaft 600 from rotating along with the rotation of the rotating shaft 200; the outer side of the guide shaft ring 600 is provided with a ring groove 610, a sealing ring is arranged in the ring groove 610, the sealing ring is made of rubber, the sealing performance between the guide shaft ring 600 and the support ring column 140 is improved by the sealing ring, and meanwhile, the first cavity 120 and the second cavity 130 are effectively separated, so that the situation that liquid in the first cavity 120 and liquid in the second cavity 130 interfere with each other is avoided; in addition, the shaft sleeve 500 is arranged on the rotating shaft 200, so that the rigidity of the rotating shaft 200 is increased, and the running stability of the rotating shaft 200 is effectively improved.
In one embodiment, an abutting mechanism is arranged between the rotating shaft 200 and the shaft sleeve 500, and the shaft sleeve 500 is stably clamped on the rotating shaft 200 through the abutting mechanism, so that the shaft sleeve 500 and the rotating shaft 200 synchronously rotate; specifically, the docking mechanism includes a docking protrusion 220 disposed on the rotating shaft 200 and a docking groove 510 disposed on the shaft sleeve 500, the docking protrusion 220 is in matching docking with the docking groove 510, so as to stably clamp the shaft sleeve 500 on the rotating shaft 200, and to enable the shaft sleeve 500 and the rotating shaft 200 to synchronously rotate.
In other embodiments, the docking mechanism may alternatively include a docking groove disposed on the rotating shaft 200 and a docking protrusion disposed on the shaft sleeve 500, the docking protrusion and the docking groove are in mating docking with each other, so as to stably clamp the shaft sleeve 500 on the rotating shaft 200 and enable the shaft sleeve 500 and the rotating shaft 200 to rotate synchronously.
In one embodiment, a gap exists between the shaft sleeve 500 and the guide collar 600, so that when the rotating shaft 200 drives the shaft sleeve 500 to move, the resistance effect of the guide collar 600 on the rotation of the rotating shaft 200 is reduced as much as possible, and meanwhile, the communicating gap between the first chamber 120 and the second chamber 130 is reduced, the internal leakage is reduced, and the liquid conveying efficiency is improved; the utility model discloses in, the clearance between axle sleeve 500 and the guide shaft ring 600 is 0.25mm ~ 0.35mm, is favorable to reducing the intercommunication clearance of first cavity 120 and second cavity 130, reduces inside leakage, and then improves liquid transport efficiency.
In one embodiment, the outer side of the rotating shaft 200 is provided with a guide vane 700, the guide vane 700 is clamped in the pump housing body 100, the impeller 210 is arranged in the guide vane 700, and the guide vane 700 is used for guiding the liquid conveyed by the impeller 210, so that the impellers 210 of different levels can rotate conveniently to realize the working effect on the liquid; the two ends of the supporting ring column 140 extend to the left and right sides respectively to be arranged close to the guide vane 700, so that a gap is reserved between the supporting ring column 140 and the guide vane 700, and the rotating operation of the rotating shaft 200 is not affected.
In one embodiment, the first bearing assembly 300 includes a first throttle plate 310, a first end cap 320 and a first bearing seat 330, the first end cap 320 and the first throttle plate 310 are separately disposed at an end of the pump casing body 100, and one end of the rotating shaft 200 sequentially penetrates through the first throttle plate 310, the first end cap 320 and the first bearing seat 330 and then protrudes out of one side of the first bearing seat 330; the second bearing assembly 400 includes a second throttle plate 410, a second end cap 420 and a second bearing seat 430, and the other end of the rotating shaft 200 sequentially penetrates through the second throttle plate 410 and the second end cap 420 and is fixed on the second bearing seat 430; a first bearing is disposed in the first bearing seat 330, and a second bearing is disposed in the second bearing seat 430.
In one embodiment, the pump casing body 100 includes an upper casing 101 and a lower casing 102, the upper casing 101 and the lower casing 102 are disposed in a butt joint manner through a bolt assembly, the upper casing 101 and the lower casing 102 enclose a flow space, the first chamber 120 and the second chamber 130 together form the flow space, an upper partition 111 is disposed on the upper casing 101, a lower partition 112 is disposed on the lower casing 102, and the upper partition 111 and the lower partition 112 together form a partition 110 structure.
When the utility model works, the external driving device drives the rotating shaft 200 to start rotating operation, the rotating shaft 200 starts rotating under the supporting action of the first bearing seat 330 and the second bearing seat 430, meanwhile, a gap exists between the guide collar 600 and the rotating shaft 200, when the rotating shaft 200 rotates, the flowing liquid in the first chamber 120 or the second chamber 130 enters the gap between the guide collar 600 and the rotating shaft 200, on the basis of ensuring the isolation of the first chamber 120 from the second chamber 130, internal leakage is reduced, thereby improving the liquid delivery efficiency, improving the lubrication degree between the guide collar 600 and the rotary shaft 200, meanwhile, the guide collar 600 also supports the rotation shaft 200 when the rotation shaft 200 rotates, thereby reducing the force applied to the first bearing housing 330 and the second bearing housing 430 when the rotating shaft 200 rotates, thereby effectively improving the service life of the first bearing housing 330 and the second bearing housing 430.
To sum up, the utility model relates to a multistage well-opening pump pivot bearing structure sets up baffle 110 through setting up at pump case body 100 middle part, the cooperation sets up support ring post 140 on baffle 110, when pivot 200 runs through support ring post 140, set up at support annular 141 internal fixation and lead axle ring 600 with the cover establish on the axle sleeve 500 that the pivot 200 outside set up, lead axle ring 600 and realize the supporting effect to pivot 200 under the pivot 200 pivoted circumstances, effectively reduce the bearing capacity of first bearing subassembly 300 and second bearing subassembly 400, and then improve the life of bearing.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a multistage well turn on pump pivot bearing structure which characterized in that: including pump case body, pivot, first bearing subassembly and second bearing subassembly set up respectively at pump case body both ends, the pivot both ends are blocked respectively and are put on first bearing subassembly and second bearing subassembly, pump case body middle part is provided with the baffle, the baffle middle part is provided with the support ring post, the support ring groove has been seted up on the support ring post, the pivot runs through the setting of support ring groove, be provided with the axle sleeve in the pivot, the support ring post is provided with the guide shaft ring in supporting the ring groove internal fixation, the guide shaft ring overlaps and establishes in axle sleeve outside portion.
2. The rotary shaft supporting structure of a multistage split pump according to claim 1, wherein: the outer side of the guide shaft ring is provided with a ring groove, and a sealing ring is arranged in the ring groove.
3. The rotary shaft supporting structure of a multi-stage axially split pump according to claim 2, wherein: the sealing ring is made of rubber.
4. The rotary shaft supporting structure of a multistage split pump according to claim 1 or 2, wherein: the pump shell comprises a pump shell body and is characterized in that an inner cavity of the pump shell body is divided into a first cavity and a second cavity by a partition plate, a plurality of impellers are arranged on a rotating shaft, and the impellers are distributed in the first cavity and the second cavity.
5. The rotary shaft supporting structure of a multistage split pump according to claim 1 or 2, wherein: and a butt joint mechanism is arranged between the rotating shaft and the shaft sleeve, and the shaft sleeve is stably clamped on the rotating shaft through the butt joint mechanism, so that the shaft sleeve and the rotating shaft synchronously rotate.
6. The rotary shaft supporting structure of a multistage split pump according to claim 5, wherein: the butt joint mechanism comprises a butt joint lug arranged on the rotating shaft and a butt joint groove arranged on the shaft sleeve, and the butt joint lug is in butt joint with the butt joint groove in a matching mode.
7. The rotary shaft supporting structure of a multistage split pump according to claim 5, wherein: the butt joint mechanism comprises a butt joint groove arranged on the rotating shaft and a butt joint lug arranged on the shaft sleeve, and the butt joint lug is in butt joint with the butt joint groove in a matching mode.
8. The rotary shaft supporting structure of a multistage split pump according to claim 1 or 2, wherein: a gap exists between the shaft sleeve and the guide shaft ring, and the gap between the shaft sleeve and the guide shaft ring is 0.25-0.35 mm.
9. The rotary shaft supporting structure of a multistage split pump according to claim 4, wherein: the utility model discloses a pump case, including pump case body, impeller, support ring post, pivot outside portion, the pump case body is provided with the stator, the stator card is held at the pump case body, the impeller is arranged in the stator, support ring post both ends extend to respectively to the left and right sides direction and press close to the setting with the stator.
10. The rotary shaft supporting structure of a multistage split pump according to claim 1 or 2, wherein: the first bearing assembly comprises a first throttle plate, a first end cover and a first bearing seat, the first end cover and the first throttle plate are respectively arranged at one end part of the pump shell body at intervals, and one end of the rotating shaft sequentially penetrates through the first throttle plate, the first end cover and the first bearing seat and then protrudes out of one side of the first bearing seat; the second bearing assembly comprises a second throttle plate, a second end cover and a second bearing seat, and the other end of the rotating shaft penetrates through the second throttle plate and the second end cover in sequence and then is fixed on the second bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217810.2U CN216842238U (en) | 2022-01-26 | 2022-01-26 | Multi-stage axially split pump rotating shaft supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217810.2U CN216842238U (en) | 2022-01-26 | 2022-01-26 | Multi-stage axially split pump rotating shaft supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216842238U true CN216842238U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220217810.2U Active CN216842238U (en) | 2022-01-26 | 2022-01-26 | Multi-stage axially split pump rotating shaft supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216842238U (en) |
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- 2022-01-26 CN CN202220217810.2U patent/CN216842238U/en active Active
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