CN112117875A - Novel liquid type rotor dynamic balance head structure - Google Patents
Novel liquid type rotor dynamic balance head structure Download PDFInfo
- Publication number
- CN112117875A CN112117875A CN202011114802.7A CN202011114802A CN112117875A CN 112117875 A CN112117875 A CN 112117875A CN 202011114802 A CN202011114802 A CN 202011114802A CN 112117875 A CN112117875 A CN 112117875A
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- Prior art keywords
- liquid
- rotor
- balance
- valve
- end cover
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- 239000007788 liquid Substances 0.000 title claims abstract description 121
- 238000003860 storage Methods 0.000 claims abstract description 27
- 239000011550 stock solution Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000018199 S phase Effects 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/042—Balancing mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
Abstract
The invention discloses a novel liquid rotor dynamic balance head structure which comprises a chassis, an end cover and a one-way valve. The chassis is provided with a shaft hole, a plurality of through holes and a plurality of liquid storage cavities, and each liquid storage cavity is uniformly distributed on the periphery of the shaft hole. The end cover is provided with a shaft hole, a plurality of through holes and a plurality of annular chutes, the bottom of each annular chute is provided with a liquid inlet hole communicated with the corresponding liquid storage cavity, the liquid storage cavities are communicated with the outside through the liquid inlet holes on the one-way valves and the end cover, the end cover is fixed on the side surface of the chassis, and the one-way valves are fixed on the side surface of the end cover. The invention has simple structure, convenient operation, high efficiency of realizing dynamic balance of the rotor and good precision maintenance.
Description
Technical Field
The invention belongs to the field of dynamic balance, and designs a novel liquid rotor dynamic balance head structure.
Background
With the development of society advanced science and technology, precision and ultra-precision machining in mechanical machining has wide application in a plurality of fields, and grinding is an important means for improving the precision and quality of a machined material and plays an important role in precision and ultra-precision machining. In recent years, a great deal of talents, resources and funds are continuously invested in developed countries and manufacturing countries to research grinding technology. The grinding wheel can be regarded as a rotor and is an important processing part in grinding, and the vibration generated by unbalance of the grinding wheel directly influences the precision and quality of processed materials and influences the efficiency and the service life of the grinding wheel. The traditional static balance method is limited because the abrasion of the grinding wheel and the uneven absorption of cooling liquid can continuously generate new unbalance in the working process of the grinding wheel. Therefore, the research on the dynamic balance technology of the grinding wheel is very important in the development of precision and ultra-precision machining and grinding automation.
At present, the liquid type automatic balancing device is widely applied to the market. The liquid type balancing device has high balancing precision, strong balancing capability and diversified balancing modes, and does not pollute the environment by using water as a balancing medium. However, the liquid type automatic balancing system also has the defects that the structure of the liquid releasing type grinding wheel balancing head is complex, the balancing cavity of the novel liquid type grinding wheel balancing head is open, when the rotating speed is low or the machine is stopped, the balancing liquid flows out of the liquid storage cavity, a new unbalance amount is introduced, and therefore the balancing needs to be rebalanced when the machine is started at every time, and the problems are solved and the accuracy maintenance is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a novel liquid type rotor dynamic balance head structure.
In order to achieve the purpose, the novel liquid rotor dynamic balance head structure comprises a chassis, an end cover and a one-way valve, wherein the chassis is provided with a shaft hole, a plurality of through holes and a plurality of liquid storage cavities, each liquid storage cavity is uniformly distributed on the periphery of the shaft hole, the end cover is provided with a plurality of annular chutes, a plurality of through holes and a plurality of liquid discharge holes communicated with the corresponding liquid storage cavity, the bottom of each annular chute is provided with a liquid inlet hole communicated with the corresponding liquid storage cavity, the liquid storage cavities are communicated with the outside through the one-way valve fixed on the rear side face of the end cover, the end cover is fixed on the side face of.
The check valve includes base, clamp, duckbilled valve, and the base is equipped with screw hole and feed liquor cross hole, and the duckbilled valve passes through the clamp to be fixed on the base.
The number of the annular chutes, the number of the through holes, the number of the liquid inlet holes, the number of the one-way valves, the number of the liquid outlet holes and the number of the liquid storage cavities are all 4.
The annular chute has a certain angle alpha with the side surface of the end cover.
The liquid discharge hole is positioned on the side surface of the end cover, is provided with internal threads and is sealed by a liquid discharge hole screw.
When balanced liquid passes through the valve, the valve is opened to the check valve, and when flow or pressure increase, the range of opening of duckbilled valve also increases along with it, when not having balanced liquid, counter-water pressure or atmospheric pressure can compress tightly the duckbilled valve, prevents balanced liquid backward flow, keeps balanced precision.
The balancing process for the rotor is as follows: obtain rotor vibration signal through the sensor, according to vibration signal analysis calculates rotor unbalance's size and phase place, according to unbalance's phase place calculation reachs for making rotor balance, need to get into the stock solution chamber injection balanced liquid that corresponds, according to unbalance's size calculation reachs for making rotor balance, the required balanced liquid's of each stock solution intracavity volume, in rotor working process, make annular chute in balanced liquid pass through the feed liquor hole by the effect of centrifugal force and get into the check valve, when balanced liquid passes through the duckbill valve door, the valve is opened, balanced liquid constantly gets into the stock solution chamber, realizes rotor dynamic balance, when the stock solution chamber fills up balanced liquid, only need not hard up the outage screw, emits the balanced liquid in stock solution chamber, can balance again.
The invention has the following beneficial effects:
when the novel liquid type rotor dynamic balance head structure works, balance liquid is injected into the annular chute through the spray head, the one-way valve is opened when the balance liquid passes through the valve, the balance liquid enters the liquid inlet hole from the annular chute and enters the liquid storage cavity through the one-way valve, when the novel liquid type rotor dynamic balance head structure is used, online dynamic balance of a rotor can be realized only by controlling the amount of the balance liquid entering each liquid storage cavity, when the liquid storage cavities are filled with the balance liquid, only the screws need to be loosened, the balance liquid is discharged, automation, high efficiency and high precision are realized, the operation is convenient and simple, and the novel liquid type rotor dynamic balance head structure has good precision retentivity.
Furthermore, in the balancing process, the retaining performance of the balancing precision of the balancing head is improved by the one-way valve, the balancing cavity is sealed by the one-way valve, the working state of the balancing cavity is controlled by the one-way valve, when the balancing liquid passes through the valve, the valve is opened, when the flow or the pressure is increased, the opening range of the duckbill valve is increased, when the balancing liquid does not exist, the duckbill valve is compressed by the counter water pressure or the atmospheric pressure, the backflow of the balancing liquid is prevented, and the balancing precision is maintained.
Further, in the balancing process, the side face of the end cover is provided with the liquid discharging hole, the inner wall of the liquid discharging hole is provided with the internal thread, and the internal thread is sealed by the liquid discharging hole screw, so that the accidents of throwing the screw and the balancing liquid caused by the loosening of the screw, the overlarge centrifugal force and the like can be effectively avoided, and the safety is high.
Furthermore, in the balancing process, the annular chute arranged on the side surface of the end cover has a certain angle alpha with the side surface of the end cover, so that the balancing liquid can effectively enter the liquid storage cavity from the liquid inlet hole through the one-way valve under the action of centrifugal force in the rotating process of the balancing head, and the balancing liquid is prevented from splashing outwards.
Drawings
Fig. 1 is a schematic view of a balance head structure according to the present invention.
Fig. 2 is a schematic structural view of the check valve of the present invention.
Fig. 3 is a partial structural view of the balance head of the present invention.
The device comprises an end cover 1, a through hole 2, a fastening screw 3, a shaft hole 4, an annular chute 5, a liquid inlet hole 6, a check valve 7, a chassis 8, a liquid storage cavity 9, a liquid discharge hole screw 10, a fastening screw 11, a threaded hole 12, a base 13, a duckbill valve 14, a clamp 15, a liquid inlet cross hole 16 and a fastening screw 17.
Detailed description of the preferred embodiments
The invention is described in further detail below with reference to the following figures and specific embodiments:
the invention relates to a novel liquid type rotor dynamic balance head structure which comprises a chassis 8, an end cover 1 and a one-way valve 7, wherein the chassis 8 is provided with a shaft hole 4, a plurality of through holes 2 and a plurality of liquid storage cavities 9, each liquid storage cavity 9 is uniformly distributed on the periphery of the shaft hole 4, the end cover 1 is provided with the shaft hole 4, a plurality of through holes 2, a plurality of liquid discharge holes and a plurality of annular chutes 5, the bottom of each annular chute 5 is provided with a liquid inlet hole 6 communicated with the corresponding liquid storage cavity 9, the liquid storage cavities 9 are communicated with the outside through the one-way valve 7 fixed on the rear side surface of the end cover 1 and the liquid inlet hole 6 on the end cover 1 by fastening screws 22, the end cover 1 and the chassis 8 are fixed by fastening screws 3 and fastening screws 11, the one-way valve 7 is fixed on the side surface of the.
It should be noted that, the quantity of annular chute 5, the quantity of through-hole 2, the quantity of check valve 7, the quantity of feed liquor hole 6, the quantity of outage and the quantity of stock solution chamber 9 are 4, the outage is located end cover 1 side, and be equipped with the internal thread, seal by outage screw 10, annular chute 5 has certain angle alpha with end cover 1 side, check valve 7 of design is when balanced liquid is through the valve, the valve is opened, when flow or pressure increase, duckbill valve 14 opens the range and also increases along with it, when there is not balanced liquid, counter-water pressure or atmospheric pressure can compress tightly duckbill valve 14, prevent balanced liquid backward flow, keep balanced precision.
Examples of the invention
The check valve includes base, clamp, duckbilled valve, and the base is equipped with screw hole and feed liquor cross hole, and the duckbilled valve passes through the clamp to be fixed on the base.
The balancing process for the rotor is as follows: obtain rotor vibration signal through the sensor, according to vibration signal analysis calculates rotor unbalance's size and phase place, according to unbalance's phase place calculation reachs for making rotor balance, needs to be to the stock solution chamber injection balanced liquid that corresponds, according to unbalance's size calculation reachs for making rotor balance, the required balanced liquid's of each stock solution intracavity volume, in rotor working process, make annular chute internal balance liquid pass through the feed liquor hole by the effect of centrifugal force and get into the check valve, when balanced liquid passes through the duckbill valve, the valve is opened, balanced liquid constantly gets into the stock solution chamber, realize rotor dynamic balance, when not having balanced liquid, counter water pressure or atmospheric pressure can compress tightly the duckbill valve, prevent balanced liquid backward flow, keep balanced precision. When the liquid storage cavity is filled with the balance liquid, the balance liquid in the liquid storage cavity can be balanced again only by loosening the screw of the liquid discharge hole and discharging the balance liquid.
Claims (5)
1. A novel liquid rotor dynamic balance head structure is characterized by comprising a chassis (8), an end cover (1) and a one-way valve (7), wherein the chassis (8) is provided with a shaft hole (4), a plurality of through holes (2) and a plurality of liquid storage cavities (9), each liquid storage cavity (9) is uniformly distributed on the periphery of the shaft hole (4), the end cover (1) is provided with the shaft hole (4), a plurality of through holes (2), a plurality of liquid discharge holes and a plurality of annular chutes (5), the bottom of each annular chute (5) is provided with a liquid inlet hole (6) communicated with the corresponding liquid storage cavity (9), the liquid storage cavities (9) are communicated with the outside through the one-way valve (7) and the liquid inlet hole (6) on the end cover (1), the end cover (1) and the chassis (8) are fixed through a fastening screw (3) and a fastening screw (11), the one-way valve (7) is fixed on the side surface, the balance head and the rotor are fixed by a bolt and a nut through a through hole (2);
the check valve (7) comprises a base (13), a hoop (15) and a duckbill valve (14), the base (13) is provided with a threaded hole (12) and a liquid inlet cross hole (16), and the duckbill valve (14) is fixed on the base (13) through the hoop (15);
the balancing process for the rotor is as follows: obtain rotor vibration signal through the sensor, according to vibration signal analysis calculates rotor unbalance's size and phase place, according to unbalance's phase place calculation reachs for making rotor balance, need to get into the stock solution chamber (9) injection balanced liquid that corresponds, according to unbalance's size calculation reachs for making rotor balance, the required balanced liquid's in each stock solution chamber (9) volume, in rotor working process, make annular chute (5) internal balance liquid pass through feed liquor hole (6) and get into check valve (7) by the effect of centrifugal force, when balanced liquid through duckbill valve (14) valve, the valve is opened, balanced liquid constantly gets into stock solution chamber (9), realize rotor dynamic balance, when stock solution chamber (9) are filled up balanced liquid, only need become flexible outage screw (10), emit the balanced liquid of stock solution chamber (9), can balance again.
2. The novel liquid rotor dynamic balance head structure according to claim 1, wherein the number of the annular inclined grooves (5), the number of the through holes (2), the number of the liquid inlet holes (6), the number of the liquid outlet holes, the number of the one-way valves (7) and the number of the liquid storage cavities (6) are all 4.
3. The novel liquid rotor dynamic balance head structure according to claim 1, wherein the liquid discharge hole is positioned on the side surface of the end cover (1) and is provided with internal threads and is closed by a liquid discharge hole screw (10).
4. The novel liquid rotor dynamic balance head structure according to claim 1, wherein the annular chute (5) is at an angle α with the side surface of the end cover (1).
5. The novel liquid rotor dynamic balance head structure according to claim 1, wherein the designed check valve (7) is opened when balance liquid passes through the valve, the opening amplitude of the duckbill valve (14) is increased when the flow or pressure is increased, and when no balance liquid exists, the duckbill valve (14) is pressed by counter water pressure or atmospheric pressure to prevent the balance liquid from flowing back and keep balance precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114802.7A CN112117875A (en) | 2020-10-19 | 2020-10-19 | Novel liquid type rotor dynamic balance head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114802.7A CN112117875A (en) | 2020-10-19 | 2020-10-19 | Novel liquid type rotor dynamic balance head structure |
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| Publication Number | Publication Date |
|---|---|
| CN112117875A true CN112117875A (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011114802.7A Pending CN112117875A (en) | 2020-10-19 | 2020-10-19 | Novel liquid type rotor dynamic balance head structure |
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| Country | Link |
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| CN (1) | CN112117875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333314A (en) * | 2022-09-21 | 2022-11-11 | 南昌三瑞智能科技有限公司 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
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|---|---|---|---|---|
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| CN102169041A (en) * | 2011-01-18 | 2011-08-31 | 西安交通大学 | Online holobalancing system for pourable hydraulic rotor |
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| CN102313626A (en) * | 2011-03-28 | 2012-01-11 | 中国计量学院 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
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-
2020
- 2020-10-19 CN CN202011114802.7A patent/CN112117875A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010010811A (en) * | 1999-07-23 | 2001-02-15 | 박노길 | Balancing machine for rotor and method therefor |
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| CN102313626A (en) * | 2011-03-28 | 2012-01-11 | 中国计量学院 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
| CN102252806A (en) * | 2011-04-27 | 2011-11-23 | 北京工业大学 | Built-in high-speed spindle double-sided on-line dynamic balance device and control system thereof |
| CN105127888A (en) * | 2015-07-10 | 2015-12-09 | 西安交通大学 | Liquid injection and draining type on-line dynamic balance head structure for high rotation speed conditions |
| CN107363720A (en) * | 2017-06-28 | 2017-11-21 | 西安交通大学 | Suitable for the liquid-spraying type on-line dynamic balancing terminal of big external diameter external thread grinder main shaft |
| CN214281167U (en) * | 2020-10-19 | 2021-09-24 | 长春工业大学 | Novel liquid type rotor dynamic balance head structure |
Non-Patent Citations (2)
| Title |
|---|
| 潘鑫;吴海琦;高金吉;: "气压液体式磨床在线自动平衡装置结构设计与性能研究", 振动与冲击, no. 23, 15 December 2014 (2014-12-15) * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333314A (en) * | 2022-09-21 | 2022-11-11 | 南昌三瑞智能科技有限公司 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
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