CN108031811A - A kind of hot-die centrifuge pipe die intelligence acceleration mechanism and its control method - Google Patents
A kind of hot-die centrifuge pipe die intelligence acceleration mechanism and its control method Download PDFInfo
- Publication number
- CN108031811A CN108031811A CN201711478804.2A CN201711478804A CN108031811A CN 108031811 A CN108031811 A CN 108031811A CN 201711478804 A CN201711478804 A CN 201711478804A CN 108031811 A CN108031811 A CN 108031811A
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- pipe die
- acceleration
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- tugboat
- mrow
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
- B22D13/101—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/12—Controlling, supervising, specially adapted to centrifugal casting, e.g. for safety reasons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Means For Catching Fish (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a kind of hot-die centrifuge pipe die intelligence acceleration mechanism, including pipe die, passive tugboat and active tugboat, angular velocity detection mechanism one for detecting pipe die rotational angular velocity is installed on the passive tugboat, angular velocity detection mechanism two for detecting active tugboat rotational angular velocity is installed on active tugboat, angular velocity detection mechanism one and angular velocity detection mechanism two are electrically connected with the processor for being calculated data and being exported, the processor is additionally operable to the acceleration and deceleration of control active tugboat, the beneficial effects of the invention are as follows：Real-time intelligent finds the optimal curve of its acceleration in pipe die accelerator, so that reducing the acceleration time improves production efficiency, reduces the workload of worker.
Description
Technical field
The present invention relates to nodular cast iron pipe heated die to centrifuge production technical field, is specifically a kind of hot-die centrifuge pipe die intelligence
Acceleration mechanism and its control method.
Background technology
Hot-die centrifuge pipe die needs to accelerate to cast rotating speed within the as far as possible short time, is needed again after to be cast
Pipe die rotating speed is improved to force molten iron Uniform Flow and improve the quality of cast tube, with the raising of pipe die rotating speed its radiating rate also with
Raising, production efficiency also improves therewith.
The acceleration of existing hot-die pipe die is to go adjustment pipe die rotating speed to add by experience and site observation date by operative employee
Fast process.If in pipe die accelerator, during the angular acceleration for driving the angular acceleration of tugboat to allow with pipe die greatly, drive at this time
Opposite slip can occur with pipe die for tugboat, since confficient of static friction is more than the coefficient of sliding friction, therefore due to opposite sliding phenomenon
The driving force that producing causes to drive pipe die diminishes, so that it is elongated to cause pipe die to reach the set rotating speed required time, and then leads
Causing the production efficiency of centrifuge reduces, and cast tube quality is unstable.
The content of the invention
It is an object of the invention to provide a kind of hot-die centrifuge pipe die intelligence acceleration mechanism and its control method, to solve
Problem proposed in the above background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of hot-die centrifuge pipe die intelligence acceleration mechanism, including pipe die, passive tugboat and active tugboat, it is described passively to drag
Angular velocity detection mechanism one for detecting pipe die rotational angular velocity is installed on wheel, is provided with active tugboat for detecting master
The angular velocity detection mechanism two of dynamic tugboat rotational angular velocity, angular velocity detection mechanism one and angular velocity detection mechanism two are with being used for
The processor for being calculated data and being exported is electrically connected, and the processor is additionally operable to the acceleration of control active tugboat and subtracts
Speed.
As the further scheme of the present invention：The angular velocity detection mechanism one and angular velocity detection mechanism two are respectively quilt
Dynamic tugboat encoder and active tugboat encoder.
A kind of control method of hot-die centrifuge pipe die intelligence acceleration mechanism, comprises the following steps：
S1, when pipe die starts, processor control active tugboat is accelerated with minimum acceleration curve, to prevent from actively dragging
With pipe die opposite slide occurs for wheel；
S2, pipe die accelerates after starting, in TiTo Ti+1With the presence or absence of skidding between detection pipe die and active tugboat in period
Phenomenon；
S3, (1) reduces the angular acceleration of active tugboat if having skidded phenomenon, and change is recorded and covered；
If not having skidded phenomenon, increase the angular acceleration of active tugboat, and change is recorded and covered, by multiple pipe die
After accelerator, remember to obtain TiTo Ti+1Optimal acceleration magnitude in period, and obtain actual acceleration curve；
(2) if having skidded phenomenon, the angular acceleration of active tugboat is reduced, and change is recorded and covered；If
Phenomenon is not had skidded, then increases the angular acceleration of active tugboat, and change is recorded and covered, and is added by multiple pipe die
After fast process, remember to obtain TiTo Ti+1Optimal acceleration magnitude in period, and obtain actual acceleration curve.
The specific operating method of the angular acceleration of active tugboat is：
By angular velocity detection mechanism two in real time to pipe die in TiThe angular speed W of timeiIt is detected, is accelerated by minimum
Curve 11, can extrapolate with minimum accelerate accelerate when, Ti+1The angular speed W at time pointi+1, and according to Wi+1It can obtain
Pipe die is in TiTo Ti+1Angular acceleration in period is αi=(Wi+1-Wi)/(Ti+1-Ti), pipe die and active within the time period
Two kinds of phenomenons are had between tugboat to occur：
(1) if pipe die is in TiTo Ti+1Phenomenon is had skidded in accelerator, that is, illustrates αiIt is larger, the master of processor control at this time
The angular acceleration of dynamic tugboat is reduced to：
Pipe die is in Ti+1The angular speed at moment is：
It can then be accelerated during pipe die startup next time according to above-mentioned angular acceleration, and to above-mentioned angular acceleration, angular speed
Change make record；
(2) if if pipe die in pipe die in TiTo Ti+1Phenomenon is not had skidded in accelerator, that is, illustrates αiIt is smaller, this time control
The angular acceleration increase of active tugboat processed is：
Then angular speed of the pipe die at the ti+1 moment is：
It can then be accelerated during pipe die startup next time according to above-mentioned angular acceleration, and to above-mentioned angular acceleration, angular speed
Change make record.
Compared with prior art, the beneficial effects of the invention are as follows：In tugboat accelerator in real time detection driving tugboat with
The linear velocity of pipe die, may determine that whether driving tugboat slides with pipe die by linear velocity, and then may determine that a certain
Whether the angular acceleration of pipe die is more than its permissible value in period.If slipping phenomenon does not occur within the time period for pipe die,
Pipe die angular acceleration in time period increases and records, if slipping phenomenon occurs within the time period for pipe die, at this moment
Between pipe die angular acceleration in section reduce and record.It is found by such a tactful pipe die real-time intelligent in accelerator to add
The optimal curve of speed, so that reducing the acceleration time improves production efficiency, reduces the workload of worker.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of hot-die centrifuge pipe die intelligence acceleration mechanism.
Fig. 2 is force analysis figure of the pipe die in rotary course is accelerated.
Fig. 3 is a kind of control principle drawing of hot-die centrifuge pipe die intelligence acceleration mechanism.
Fig. 4 is the acceleration plots in a kind of hot-die centrifuge pipe die intelligence acceleration mechanism.
In figure：The passive tugboat encoder of the passive tugboat of 1- pipe dies, 2-, 3-, 4- actives tugboat, 5- active tugboats encoder,
9- maximums acceleration curve, the actual acceleration curves of 10-, 11- minimum acceleration curves.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Please refer to Fig.1~4, in the embodiment of the present invention, a kind of hot-die centrifuge pipe die intelligence acceleration mechanism, including pipe die 1,
Passive tugboat 2 and active tugboat 4, the angular velocity detection being passively provided with tugboat 2 for detecting 1 rotational angular velocity of pipe die
Mechanism one, the angular velocity detection mechanism two for detecting 4 rotational angular velocity of active tugboat, angular speed are provided with active tugboat 4
Testing agency one and angular velocity detection mechanism two are electrically connected with the processor for being calculated data and being exported, described
Processor is additionally operable to the acceleration and deceleration of control active tugboat 4.
The angular velocity detection mechanism one and angular velocity detection mechanism two are respectively passive tugboat encoder 3 and active tugboat
Encoder 5.
A kind of control method of hot-die centrifuge pipe die intelligence acceleration mechanism, comprises the following steps：
S1, when pipe die starts, processor control active tugboat is accelerated with minimum acceleration curve, to prevent from actively dragging
With pipe die opposite slide occurs for wheel；
S2, pipe die accelerates after starting, in TiTo Ti+1With the presence or absence of skidding between detection pipe die and active tugboat in period
Phenomenon；
(2) if having skidded phenomenon, the angular acceleration of active tugboat is reduced, and change is recorded and covered；If
Phenomenon is not had skidded, then increases the angular acceleration of active tugboat, and change is recorded and covered, and is added by multiple pipe die
After fast process, remember to obtain TiTo Ti+1Optimal acceleration magnitude in period, and obtain actual acceleration curve 10.
The specific operating method of the angular acceleration of active tugboat is：
By angular velocity detection mechanism two in real time to pipe die in TiThe angular speed W of timeiIt is detected, is accelerated by minimum
Curve 11 (pipe die angular acceleration values can be obtained according to Mechanics Calculation, but since quiet between pipe die 1 and active tugboat 4 rubs
It is changing value that coefficient, which is wiped, by rotating speed and abrasion condition, and the minimum acceleration of theory of pipe die can be obtained according to the extreme value of confficient of static friction
Curve 11 and theoretical maximum acceleration curve 9), it can extrapolate when accelerating to accelerate with minimum, Ti+1The angular speed at time point
Wi+1, and according to Wi+1Pipe die can be obtained in TiTo Ti+1Angular acceleration in period is αi=(Wi+1-Wi)/(Ti+1-Ti),
Two kinds of phenomenons are had in time period between pipe die and active tugboat to occur：
(1) if pipe die is in TiTo Ti+1Phenomenon is had skidded in accelerator, that is, illustrates αiIt is larger, the master of processor control at this time
The angular acceleration of dynamic tugboat is reduced to：
Pipe die is in Ti+1The angular speed at moment is：
It can then be accelerated during pipe die startup next time according to above-mentioned angular acceleration, and to above-mentioned angular acceleration, angular speed
Change make record；
(2) if if pipe die in pipe die in TiTo Ti+1Phenomenon is not had skidded in accelerator, that is, illustrates αiIt is smaller, this time control
The angular acceleration increase of active tugboat processed is：
Then angular speed of the pipe die at the ti+1 moment is：
It can then be accelerated during pipe die startup next time according to above-mentioned angular acceleration, and to above-mentioned angular acceleration, angular speed
Change make record.
Force analysis of the pipe die in rotary course is accelerated is as shown in Figure 2：
Wherein：R is pipe die radius, and r is passive tugboat radius, and G is pipe die gravity, and L is tugboat spacing, and α is cornerite, FnFor
Tugboat is to the support force of pipe die, FdDriving force for active tugboat to pipe die, FrResistance for passive tugboat to pipe die, ωRFor pipe
Modular angle speed, ωrFor tugboat angular speed.
Tugboat driving force computational methods：
Release：
Release：
Wherein：
Fd=Fn·μ；
μ is friction coefficient (static friction：0.15~0.25 sliding friction：0.05~0.1)
Pipe die acceleration formula is：
M is pipe die quality；
Then the angular acceleration of pipe die is：
The angular acceleration of tugboat is：
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (3)
1. a kind of hot-die centrifuge pipe die intelligence acceleration mechanism, including pipe die (1), passive tugboat (2) and active tugboat (4), its
It is characterized in that, the angular velocity detection mechanism one for detecting pipe die (1) rotational angular velocity is installed on the passive tugboat (2),
Angular velocity detection mechanism two for detecting active tugboat (4) rotational angular velocity, angular velocity detection are installed on active tugboat (4)
Mechanism one and angular velocity detection mechanism two are electrically connected with the processor for being calculated data and being exported, the processing
Device is additionally operable to the acceleration and deceleration of control active tugboat (4).
A kind of 2. hot-die centrifuge pipe die intelligence acceleration mechanism according to claim 1, it is characterised in that the angular speed
Testing agency one and angular velocity detection mechanism two are respectively passive tugboat encoder (3) and active tugboat encoder (5).
3. a kind of control method according to any hot-die centrifuge pipe die intelligence acceleration mechanisms of claim 1-2, it is special
Sign is, comprises the following steps：
S1, when pipe die starts, processor control active tugboat accelerated with minimum acceleration curve, with prevent active tugboat with
Opposite slide occurs for pipe die；
S2, pipe die accelerates after starting, in TiTo Ti+1It whether there is slipping phenomenon between detection pipe die and active tugboat in period；
S3, (1) reduces the angular acceleration of active tugboat if having skidded phenomenon, and change is recorded and covered；If not
Phenomenon is had skidded, then increases the angular acceleration of active tugboat, and change is recorded and covered, is accelerated by multiple pipe die
After process, remember to obtain TiTo Ti+1Optimal acceleration magnitude in period, and actual acceleration curve is obtained, root when subsequently accelerating
Actual acceleration curve is accelerated accordingly；
(2) if having skidded phenomenon, the angular acceleration of active tugboat is reduced, and change is recorded and covered；If do not go out
Existing slipping phenomenon, then increase the angular acceleration of active tugboat, and change is recorded and covered, and accelerated by multiple pipe die
Cheng Hou, remembers to obtain TiTo Ti+1Optimal acceleration magnitude in period, and obtain actual acceleration curve, it is follow-up when accelerating according to
This actual acceleration curve is accelerated.
The control method of a kind of hot-die centrifuge pipe die intelligence acceleration mechanism according to claim 3, it is characterised in that main
Moving the specific operating method of the angular acceleration of tugboat is：
By angular velocity detection mechanism two in real time to pipe die in TiThe angular speed W of timeiIt is detected, by minimum acceleration curve
11, can extrapolate with minimum accelerate accelerate when, Ti+1The angular speed W at time pointi+1, and according to Wi+1It can obtain pipe die
In TiTo Ti+1Angular acceleration in period is αi=(Wi+1-Wi)/(Ti+1-Ti), pipe die and active tugboat within the time period
Between have two kinds of phenomenons and occur：
(1) if pipe die is in TiTo Ti+1Phenomenon is had skidded in accelerator, that is, illustrates αiLarger, processor control at this time is actively dragged
The angular acceleration of wheel is reduced to：
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It can then be accelerated during pipe die startup next time according to above-mentioned angular acceleration, and to above-mentioned angular acceleration, angular speed more
Transform out record into；
(2) if if pipe die in pipe die in TiTo Ti+1Phenomenon is not had skidded in accelerator, that is, illustrates αiSmaller, control at this time is led
The angular acceleration increase of dynamic tugboat is：
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It can then be accelerated during pipe die startup next time according to above-mentioned angular acceleration, and to above-mentioned angular acceleration, angular speed more
Transform out record into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478804.2A CN108031811B (en) | 2017-12-29 | 2017-12-29 | Intelligent accelerating mechanism for pipe die of hot die centrifuge and control method of intelligent accelerating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478804.2A CN108031811B (en) | 2017-12-29 | 2017-12-29 | Intelligent accelerating mechanism for pipe die of hot die centrifuge and control method of intelligent accelerating mechanism |
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| CN108031811A true CN108031811A (en) | 2018-05-15 |
| CN108031811B CN108031811B (en) | 2023-08-15 |
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ID=62098380
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711478804.2A Active CN108031811B (en) | 2017-12-29 | 2017-12-29 | Intelligent accelerating mechanism for pipe die of hot die centrifuge and control method of intelligent accelerating mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510566A (en) * | 2018-12-19 | 2019-03-22 | 苏州奥宝杰电机科技有限公司 | Motor accelerating method, motor control method, motor and industrial ceiling fan |
| CN112904038A (en) * | 2021-01-20 | 2021-06-04 | 三一专用汽车有限责任公司 | Mixing drum measuring device and measuring method of mixing truck and mixing truck |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752833A (en) * | 1953-04-25 | 1956-07-18 | Cie Generale Des Conduites D E | Improvements relating to centrifugal casting |
| JP2002192314A (en) * | 2000-12-28 | 2002-07-10 | Kubota Corp | Metal frame rotating unit for mold centrifugal casting |
| US20050284679A1 (en) * | 2002-09-20 | 2005-12-29 | Akira Hommi | Slip control device for vehicle, vehicle mounted with the device, and the method of controlling vehicle slip |
| CN201002307Y (en) * | 2007-01-18 | 2008-01-09 | 中交三航局第三工程有限公司 | Centrifuge set used for preparing 55mPHC pipe pile |
| JP2008264865A (en) * | 2007-04-16 | 2008-11-06 | Honda Seiki Kk | Horizontal centrifugal casting machine for rapid solidification |
| JP2010227990A (en) * | 2009-03-27 | 2010-10-14 | Honda Motor Co Ltd | Centrifugal casting apparatus |
| JP2011212739A (en) * | 2010-04-02 | 2011-10-27 | Kubota Corp | Centrifugal casting apparatus |
| CN202479467U (en) * | 2012-03-13 | 2012-10-10 | 常州好迪机械有限公司 | Roller driving device for casting |
| CN103878337A (en) * | 2014-03-14 | 2014-06-25 | 新兴铸管股份有限公司 | Multi-station hot mold method centrifugal production system |
| CN205873180U (en) * | 2016-06-29 | 2017-01-11 | 天津百利阳光环保设备有限公司 | Device that skids is prevented to two detection that conveyer was used |
| CN106862515A (en) * | 2017-03-29 | 2017-06-20 | 沈阳工业大学 | The preparation facilities and method of a kind of major diameter light-alloy pipe long |
| CN209532044U (en) * | 2017-12-29 | 2019-10-25 | 新兴河北工程技术有限公司 | A kind of hot-die centrifuge pipe die intelligence acceleration mechanism |
-
2017
- 2017-12-29 CN CN201711478804.2A patent/CN108031811B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752833A (en) * | 1953-04-25 | 1956-07-18 | Cie Generale Des Conduites D E | Improvements relating to centrifugal casting |
| JP2002192314A (en) * | 2000-12-28 | 2002-07-10 | Kubota Corp | Metal frame rotating unit for mold centrifugal casting |
| US20050284679A1 (en) * | 2002-09-20 | 2005-12-29 | Akira Hommi | Slip control device for vehicle, vehicle mounted with the device, and the method of controlling vehicle slip |
| CN201002307Y (en) * | 2007-01-18 | 2008-01-09 | 中交三航局第三工程有限公司 | Centrifuge set used for preparing 55mPHC pipe pile |
| JP2008264865A (en) * | 2007-04-16 | 2008-11-06 | Honda Seiki Kk | Horizontal centrifugal casting machine for rapid solidification |
| JP2010227990A (en) * | 2009-03-27 | 2010-10-14 | Honda Motor Co Ltd | Centrifugal casting apparatus |
| JP2011212739A (en) * | 2010-04-02 | 2011-10-27 | Kubota Corp | Centrifugal casting apparatus |
| CN202479467U (en) * | 2012-03-13 | 2012-10-10 | 常州好迪机械有限公司 | Roller driving device for casting |
| CN103878337A (en) * | 2014-03-14 | 2014-06-25 | 新兴铸管股份有限公司 | Multi-station hot mold method centrifugal production system |
| CN205873180U (en) * | 2016-06-29 | 2017-01-11 | 天津百利阳光环保设备有限公司 | Device that skids is prevented to two detection that conveyer was used |
| CN106862515A (en) * | 2017-03-29 | 2017-06-20 | 沈阳工业大学 | The preparation facilities and method of a kind of major diameter light-alloy pipe long |
| CN209532044U (en) * | 2017-12-29 | 2019-10-25 | 新兴河北工程技术有限公司 | A kind of hot-die centrifuge pipe die intelligence acceleration mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 李庆春等: "特种铸造论文集", 全国铸造学会, pages: 163 - 169 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510566A (en) * | 2018-12-19 | 2019-03-22 | 苏州奥宝杰电机科技有限公司 | Motor accelerating method, motor control method, motor and industrial ceiling fan |
| CN109510566B (en) * | 2018-12-19 | 2024-01-09 | 苏州奥宝杰电机科技有限公司 | Motor acceleration method, motor control method, motor and industrial ceiling fan |
| CN112904038A (en) * | 2021-01-20 | 2021-06-04 | 三一专用汽车有限责任公司 | Mixing drum measuring device and measuring method of mixing truck and mixing truck |
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| Publication number | Publication date |
|---|---|
| CN108031811B (en) | 2023-08-15 |
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