CN207420985U - A kind of adjustable dynamic balance structure of centrifugal pump rotor - Google Patents
A kind of adjustable dynamic balance structure of centrifugal pump rotor Download PDFInfo
- Publication number
- CN207420985U CN207420985U CN201721592564.4U CN201721592564U CN207420985U CN 207420985 U CN207420985 U CN 207420985U CN 201721592564 U CN201721592564 U CN 201721592564U CN 207420985 U CN207420985 U CN 207420985U
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- input shaft
- centrifugal pump
- balancing disk
- snap ring
- dynamic balance
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Abstract
The utility model discloses a kind of adjustable dynamic balance structures of centrifugal pump rotor, it is characterized in that, input shaft including centrifugal pump and the discoid balancing disk being coaxially mounted on the input shaft have multiple counterweight threaded holes circumferentially on the periphery of the balancing disk；It is removably installed on the counterweight threaded hole and is useful for adjusting dynamically balanced weight bolt.The utility model have it is reasonable in design, it is easy to adjust, the advantages that advantageously reducing maintenance cost, extend the service life of pump.
Description
Technical field
The utility model is related to water pump technology, in particular to a kind of adjustable dynamic balance structure of centrifugal pump rotor.
Background technology
Centrifugal pump is defeated as the significant energy reforming unit in the large industrializeds flow such as electric power, petrochemical industry, steel and fluid
Equipment, complicated in mechanical structure are sent, vibration has become the primary index of evaluation pump operation state.Wherein Rotor Scaling Formation, abrasion etc.
Vibration problem caused by caused dynamic balancing destroys occupies significant portion, but centrifugal pump rarely balance position at present, Wu Fajin
The processing of row spot dynamic balance, can only go back to factory and open and inspect processing, and then bring unnecessary economic loss to user.
Utility model content
In view of the above shortcomings of the prior art, technical problem to be solved in the utility model is：How a kind of knot is provided
Structure design is reasonable, easy to adjust, advantageously reduces maintenance cost, extend the service life of pump centrifugal pump rotor transfer it is flat
Weigh structure.
In order to solve the above-mentioned technical problem, the utility model employs following technical solution：
A kind of adjustable dynamic balance structure of centrifugal pump rotor, which is characterized in that input shaft including centrifugal pump and coaxial
Discoid balancing disk on the input shaft has multiple matching somebody with somebody circumferentially on the periphery of the balancing disk
Weight threaded hole；It is removably installed on the counterweight threaded hole and is useful for adjusting dynamically balanced weight bolt.
It using the above structure, can basis after the rotor of centrifugal pump causes dynamic balancing unbalance because of reasons such as fouling, abrasions
It needs that weight bolt is installed on part or all of counterweight threaded hole, and it is deep to adjust screw-in of the weight bolt in counterweight threaded hole
Degree changes weight bolt to the distance in axle center, readjusts the dynamic balancing of rotor, reduce the vibration of centrifugal pump, extend making for pump
Use the service life.Said structure design is reasonable, easy to adjust, opens and inspect processing without going back to factory, advantageously reduces maintenance cost.
Further, the balancing disk and the input shaft are interference fit, and are additionally provided with axial limiting therebetween
Mechanism.
Using the above structure, it using interference fit, can prevent balancing disk from being rotated relative to input shaft, and pass through axial limiting
Mechanism can prevent balancing disk axial float on input shaft, be conducive to improve the stability of the two connection, be conducive to dynamic balancing
Adjusting and holding.
Further, have on the axis hole of the balancing disk and penetrate through the first keyway of setting vertically, on the input shaft
With the second keyway to match with first keyway, the balancing disk is by being arranged on first keyway and the second keyway
Interior key is mounted on the input shaft；Axial limiting mechanism is additionally provided between the balancing disk and the input shaft.
Using the above structure, coordinated using keyway, can prevent balancing disk from being rotated relative to input shaft, and pass through axial limiting
Mechanism can prevent balancing disk axial float on input shaft, be conducive to improve the stability of the two connection, be conducive to dynamic balancing
Adjusting and holding.
Further, the axial limiting mechanism includes circumferentially penetrating through the card slot being arranged on the input shaft, described
Snap ring is installed, the thickness of the snap ring is consistent with the width of the card slot, and the internal diameter of the snap ring is less than described in card slot
The diameter of input shaft, and the outer diameter of the snap ring is more than the diameter of the input shaft；Annular shape is further sleeved on the input shaft
Briquetting, the internal diameter of the briquetting is consistent with the diameter of the input shaft, and positioned at the snap ring away from the balancing disk
One side；It is evenly distributed on the briquetting and is provided with multiple bolts hole penetrated through vertically, the balancing disk is towards the briquetting
One side on have it is multiple with the bolt hole to corresponding installation threaded hole；The briquetting is by passing through the bolt hole and tight
Gu the bolt on the installation threaded hole is mounted on the balancing disk.
Using the above structure, due to the thickness of snap ring and the equivalent width of card slot so that card slot can limit in the axial direction
The movement of snap ring, and briquetting and balancing disk are arranged on the both sides of snap ring, after using bolt, the two is connected, can by balancing disk with
Briquetting is fixed on the both sides of snap ring, so as to limit balancing disk in axial displacement.
Further, the briquetting has the annular groove to match with the snap ring, institute towards the one side of the snap ring
State that the maximum gauge of groove is consistent with the maximum gauge of the snap ring, and the depth of the groove is less than the thickness of the snap ring
Degree.
Using the above structure, coordinated using groove and snap ring, it is ensured that snap ring is coaxial arrangement with briquetting, prevents snap ring
Internal diameter radial-play for generating when being more than the minimum diameter of card slot, be conducive to improve the stability of whole dynamic balance.
Further, the counterweight threaded hole is set along the radial direction of the balancing disk.
In this way, the precession of weight bolt or back-out length are directly corresponding with the distance of weight bolt to axle center, work as needs
Precession or screw out weight bolt adjust weight bolt to axle center apart from when, it is only necessary to according to the distance of calculating, directly adjusting is matched somebody with somebody
The precession of weight bolt screws out length, adjusts more convenient.
Further, the counterweight threaded hole is uniformly arranged along the circumferential direction of the balancing disk, and the counterweight threaded hole
Depth is consistent.
In this way, the dynamic balancing of guarantee balancing disk itself that can be more convenient, convenient for the processing of balancing disk, reduces balancing disk
Production cost.Moreover, be uniformly arranged using circumferential, it can be during the later stage adjusts rotor dynamic balancing, more convenient selection
The position of weight bolt counterweight so that adjust more flexible.
Further, the thrust disc of centrifugal pump is further included, there is multiple be evenly distributed on the periphery of the thrust disc
The counterweight threaded hole set.
It in this way, can be by being adjusted to thrust disc into action balance, so as to fulfill the two plane balancing of centrifugal pump rotor.
In conclusion the utility model has the following advantages that：
1st, when the failure problems of unbalance dynamic occurs at the scene in centrifugal pump, spot dynamic balance processing can be carried out and extend pump use
Service life；
2nd, circumferentially rotated by key limitation, snap ring, briquetting, screw or interference fit limitation axial movement, counterweight dismounting side
Just；
3rd, weight mass by weight bolt length and can be screwed into depth co- controlling, simple to operate.
Description of the drawings
Fig. 1 is the structure diagram that the utility model embodiment pump housing drives end.
Fig. 2 is the structure diagram of the utility model embodiment pump housing anti-drive end.
Specific embodiment
With reference to embodiment, the utility model is described in further detail.
During specific implementation：As depicted in figs. 1 and 2, the adjustable dynamic balance structure of a kind of centrifugal pump rotor, including centrifugal pump
Input shaft 1 and the discoid balancing disk 2 being coaxially mounted on the input shaft 1 have on the periphery of the balancing disk 2
There are multiple counterweight threaded holes 3 circumferentially；Be removably installed on the counterweight threaded hole 3 be useful for adjusting it is dynamically balanced
Weight bolt 4.
It using the above structure, can basis after the rotor of centrifugal pump causes dynamic balancing unbalance because of reasons such as fouling, abrasions
It needs that weight bolt is installed on part or all of counterweight threaded hole, and it is deep to adjust screw-in of the weight bolt in counterweight threaded hole
Degree changes weight bolt to the distance in axle center, readjusts the dynamic balancing of rotor, reduce the vibration of centrifugal pump, extend making for pump
Use the service life.Said structure design is reasonable, easy to adjust, opens and inspect processing without going back to factory, advantageously reduces maintenance cost.
Have during implementation, on the axis hole of the balancing disk 2 and penetrate through the first keyway of setting vertically, on the input shaft 1
With the second keyway to match with first keyway, the balancing disk 2 is by being arranged on first keyway and the second key
Key in slot is mounted on the input shaft 1；Axial limiting mechanism is additionally provided between the balancing disk 2 and the input shaft 1.
Using the above structure, coordinated using keyway, can prevent balancing disk from being rotated relative to input shaft, and pass through axial limiting
Mechanism can prevent balancing disk axial float on input shaft, be conducive to improve the stability of the two connection, be conducive to dynamic balancing
Adjusting and holding.When it is implemented, interference fit can also be used between the balancing disk 2 and the input shaft 1, two are prevented
Person relatively rotates.
During implementation, the axial limiting mechanism includes circumferentially perforation and is arranged on the card slot on the input shaft 1, the card
Snap ring 5 is installed, the thickness of the snap ring 5 is consistent with the width of the card slot, and the internal diameter of the snap ring 5 is less than described in slot
The diameter of input shaft 1, and the outer diameter of the snap ring 5 is more than the diameter of the input shaft 1；Circle is further sleeved on the input shaft 1
Cricoid briquetting 6, the internal diameter of the briquetting 6 is consistent with the diameter of the input shaft 1, and positioned at the snap ring 5 away from described
The one side of balancing disk 2；It is evenly distributed on the briquetting 6 and is provided with multiple bolts hole penetrated through vertically, 2 court of balancing disk
Have on the one side of the briquetting 6 it is multiple with the bolt hole to corresponding installation threaded hole；The briquetting 6 is by passing through
The bolt stated bolt hole and be fastened on the installation threaded hole is mounted on the balancing disk 2.
Using the above structure, due to the thickness of snap ring and the equivalent width of card slot so that card slot can limit in the axial direction
The movement of snap ring, and briquetting and balancing disk are arranged on the both sides of snap ring, after using bolt, the two is connected, can by balancing disk with
Briquetting is fixed on the both sides of snap ring, so as to limit balancing disk in axial displacement.
During implementation, the briquetting 6 has the annular groove to match with the snap ring 5, institute towards the one side of the snap ring 5
State that the maximum gauge of groove is consistent with the maximum gauge of the snap ring 5, and the depth of the groove is less than the thickness of the snap ring 5
Degree.
Using the above structure, coordinated using groove and snap ring, it is ensured that snap ring is coaxial arrangement with briquetting, prevents snap ring
Internal diameter radial-play for generating when being more than the minimum diameter of card slot, be conducive to improve the stability of whole dynamic balance.
During implementation, the counterweight threaded hole 3 is set along the radial direction of the balancing disk 2.
In this way, the precession of weight bolt or back-out length are directly corresponding with the distance of weight bolt to axle center, work as needs
Precession or screw out weight bolt adjust weight bolt to axle center apart from when, it is only necessary to according to the distance of calculating, directly adjusting is matched somebody with somebody
The precession of weight bolt screws out length, adjusts more convenient.
During implementation, the counterweight threaded hole 3 is uniformly arranged along the circumferential direction of the balancing disk 2, and the counterweight threaded hole 3
Depth is consistent.
In this way, the dynamic balancing of guarantee balancing disk itself that can be more convenient, convenient for the processing of balancing disk, reduces balancing disk
Production cost.Moreover, be uniformly arranged using circumferential, it can be during the later stage adjusts rotor dynamic balancing, more convenient selection
The position of weight bolt counterweight so that adjust more flexible.
During implementation, the thrust disc 7 of centrifugal pump is further included, there is multiple be evenly distributed on the periphery of the thrust disc 7
The counterweight threaded hole 3 set.
It in this way, can be by being adjusted to thrust disc into action balance, so as to fulfill the two plane balancing of centrifugal pump rotor.
The above is only the preferred embodiment of the utility model only, all at this not using the utility model as limitation
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
- A kind of 1. adjustable dynamic balance structure of centrifugal pump rotor, which is characterized in that the input shaft including centrifugal pump（1）, Yi Jitong Axis is mounted on the input shaft（1）On discoid balancing disk（2）, the balancing disk（2）Periphery on have multiple edges Counterweight threaded hole circumferentially（3）；The counterweight threaded hole（3）On be removably installed and be useful for adjusting dynamically balanced counterweight Bolt（4）.
- 2. the adjustable dynamic balance structure of centrifugal pump rotor as described in claim 1, which is characterized in that the balancing disk（2）With The input shaft（1）To be interference fitted, and axial limiting mechanism is additionally provided with therebetween.
- 3. the adjustable dynamic balance structure of centrifugal pump rotor as described in claim 1, which is characterized in that the balancing disk（2）'s There is the first keyway for penetrating through setting vertically, the input shaft on axis hole（1）It is upper to have what is matched with first keyway Second keyway, the balancing disk（2）The input shaft is mounted on by the key being arranged in first keyway and the second keyway （1）On；The balancing disk（2）With the input shaft（1）Between be additionally provided with axial limiting mechanism.
- 4. the adjustable dynamic balance structure of centrifugal pump rotor as claimed in claim 2 or claim 3, which is characterized in that the axial limiting Mechanism includes circumferentially perforation and is arranged on the input shaft（1）On card slot, snap ring is installed in the card slot（5）, the card Ring（5）Thickness it is consistent with the width of the card slot, the snap ring（5）Internal diameter be less than the input shaft（1）Diameter, and The snap ring（5）Outer diameter be more than the input shaft（1）Diameter；The input shaft（1）On be further sleeved with circular briquetting （6）, the briquetting（6）Internal diameter and the input shaft（1）Diameter it is consistent, and positioned at the snap ring（5）Match somebody with somebody away from described Disk again（2）One side；The briquetting（6）On be evenly distributed and be provided with multiple bolts hole penetrated through vertically, the balancing disk （2）Towards the briquetting（6）One side on have it is multiple with the bolt hole to corresponding installation threaded hole；The briquetting（6） The balancing disk is mounted on by the bolt for passing through the bolt hole and being fastened on the installation threaded hole（2）On.
- 5. the adjustable dynamic balance structure of centrifugal pump rotor as claimed in claim 4, which is characterized in that the briquetting（6）Direction The snap ring（5）One side have and the snap ring（5）The annular groove to match, the maximum gauge of the groove and the card Ring（5）Maximum gauge it is consistent, and the depth of the groove be less than the snap ring（5）Thickness.
- 6. the adjustable dynamic balance structure of centrifugal pump rotor as described in claim 1, which is characterized in that the counterweight threaded hole （3）Along the balancing disk（2）Radial direction set.
- 7. the adjustable dynamic balance structure of centrifugal pump rotor as claimed in claim 6, which is characterized in that the counterweight threaded hole （3）Along the balancing disk（2）Circumferential direction be uniformly arranged, and the counterweight threaded hole（3）Depth it is consistent.
- 8. the adjustable dynamic balance structure of centrifugal pump rotor as described in claim 1, which is characterized in that further include pushing away for centrifugal pump Power disk（7）, the thrust disc（7）Periphery on have multiple counterweight threaded holes for being evenly distributed setting（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721592564.4U CN207420985U (en) | 2017-11-24 | 2017-11-24 | A kind of adjustable dynamic balance structure of centrifugal pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721592564.4U CN207420985U (en) | 2017-11-24 | 2017-11-24 | A kind of adjustable dynamic balance structure of centrifugal pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207420985U true CN207420985U (en) | 2018-05-29 |
Family
ID=62304600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721592564.4U Active CN207420985U (en) | 2017-11-24 | 2017-11-24 | A kind of adjustable dynamic balance structure of centrifugal pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207420985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11686311B1 (en) | 2022-06-07 | 2023-06-27 | Agilent Technologies, Inc | Drive shaft connector with counterweight and blades for cooling pump motor |
-
2017
- 2017-11-24 CN CN201721592564.4U patent/CN207420985U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11686311B1 (en) | 2022-06-07 | 2023-06-27 | Agilent Technologies, Inc | Drive shaft connector with counterweight and blades for cooling pump motor |
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