CN116608815B - Detection method for swing angle of swing chute - Google Patents
Detection method for swing angle of swing chuteInfo
- Publication number
- CN116608815B CN116608815B CN202310835570.1A CN202310835570A CN116608815B CN 116608815 B CN116608815 B CN 116608815B CN 202310835570 A CN202310835570 A CN 202310835570A CN 116608815 B CN116608815 B CN 116608815B
- Authority
- CN
- China
- Prior art keywords
- swing
- angle
- point
- connecting rod
- chute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The application discloses a detection method for the swing angle of a swing chute, which comprises the steps that a crankshaft rotates around a point A, the swing chute is hinged to a point B, the point A and the point B are fixed points, in an initial state, the end part of the crankshaft and the upper end of a connecting rod are hinged to a point D, the lower end of the connecting rod and the swing chute are hinged to a point C, four hinged points form a quadrilateral ABCD, after the swing chute moves, the crankshaft and the upper end of the connecting rod are hinged to a point E, the lower end of the connecting rod and the swing chute are hinged to a point F, the value of a rotation angle DAE of the crankshaft is obtained through an angle detection device, the length of a line segment AF is calculated according to a cosine law, the value of an angle ABF is calculated according to the length of the cosine law and the combination of the line segment AF, and the swing angle CBF= ABF-ABABA is calculated. The application solves the problems of low detection precision and time and labor waste in the detection process of the detection method of the swing angle of the swing chute in the prior art.
Description
Technical Field
The application belongs to the technical field of blast furnace equipment, and particularly relates to a detection method for a swing angle of a swing chute.
Background
With the progress of the iron making process, the blast furnace is developed to be large-sized, and the swinging chute is a key part of an iron tapping channel of the large and medium blast furnace. The single tapping amount of the blast furnace is increased, so that the flow rate of molten iron is high, and the swing chute is adopted to switch the molten iron in the two molten iron tanks. After the swinging chute moves, the swinging angle data of the swinging chute is manually read and recorded, and the mechanical angle indicating disc is difficult to meet the requirements of automatic, digital and intelligent development of blast furnace cast house equipment. When the angle indicating disc of the swinging chute with each specification is manufactured, the swinging chute is required to be installed and molded, then the swinging chute is driven to swing positively and negatively, the swinging chute is clicked at intervals of 0.5 degrees, and then the real swinging angles are mapped and recorded on the angle indicating disc, so that the angle recording mode is original, the manufacturing mode is time-consuming and labor-consuming, and the angle indicating disc is shown in fig. 4. Meanwhile, the angle recording mode has lower measurement precision, and the detection basis is to perform point measurement according to the true value of every 0.5 degree interval, so that the swing angle value of the continuous pendulum groove can not be accurately measured.
Disclosure of Invention
The embodiment of the application solves the problems of low detection precision and time and labor waste in the detection process of the detection method of the swing angle of the swing chute in the prior art by providing the detection method for the swing angle of the swing chute.
In order to achieve the above object, an embodiment of the present invention provides a method for detecting a swing angle of a swing chute, including the steps of:
The output shaft of the speed reducing motor is connected with the rotating shaft of the crankshaft, the crankshaft rotates around the point A, the swinging chute is hinged with the point B, and the point A and the point B are fixed points;
In the initial state, the end part of the crankshaft and the upper end of the connecting rod are hinged to a point D, the lower end of the connecting rod and the swinging chute are hinged to a point C, and four hinging points form a quadrilateral ABCD;
after the swing chute moves, the upper ends of the crankshaft and the connecting rod are hinged to the E point, the lower end of the connecting rod and the swing chute are hinged to the F point, and four hinged points form a quadrilateral ABFE;
Obtaining the numerical value of the rotation angle DAE of the crankshaft through an angle detection device;
dividing the quadrilateral ABFE into a triangle EAF and a triangle FAB, and calculating the length of the line segment AF according to the cosine theorem;
Calculating the value of the angle ABF according to the cosine theorem and the length of the line segment AF;
Calculating a swinging angle CBF of the swinging chute, wherein the angle CBF is = -ABF- & ltABC & gt, and the angle ABC is a constant;
when the swing angle CBF is a positive value, the connecting rod moves upwards, and the point B of the swing chute swings upwards;
And when the swing angle CBF is a negative value, the connecting rod moves downwards, and the point B of the swing chute swings downwards.
In one possible implementation, calculating the length of the line segment AF according to the cosine law includes the steps of:
In triangular EAF ,COS∠EAF＝(AE2+AF2-EF2)÷(2*AE*AF)＝(L12+X2-L42)÷(2*L1*X);
In triangle FAB ,COS∠FAB＝(AF2+AB2-BF2)÷(2*AF*AB)＝(L22+X2-L32)÷(2*L2*X);
Since +.dae = -EAF- +.daf = -EAF- (-DAC +.caf) = -EAF- (-DAC +.cab- & lt FAB- & gt= -EAF +.fab- & lt DAC- & lt CAB;
thus (2) ,∠DAE＝arccos((L12+X2-L42)÷(2*L1*X))+arccos((L22+X2-L32)÷(2*L2*X))-∠DAC-∠CAB;
The line segment af=x, the line segment ae=constant L1, the line segment ab=constant L2, the line segment bf=constant L3, the line segment ef=constant L4, and the angle ++dac and the angle ++cab are constants.
In one possible implementation, calculating the angle of the ≡abf according to the cosine law in combination with the length of the line segment AF includes the steps of:
In triangle ABF ,COS∠ABF＝(AB2+BF2-AF2)÷(2*AB*BF)＝(L22+L32-X2)÷(2*L2*L3);
I.e. < abf= arccos ((L2 2+L32-X2)/(2×l2×l3)).
One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:
The embodiment of the invention provides a detection method for the swing angle of a swing chute, which can realize electronic automatic detection of the swing angle of the swing chute, thereby promoting the automatic, digital and intelligent performance improvement of the swing chute and blast furnace cast house equipment. And simultaneously, the labor intensity of operators in front of the furnace is reduced. The angle detection device adopts a rotary encoder, the rotary encoder can accurately measure the rotation angle of the crankshaft, and the value precision is higher than one ten thousandth. According to the invention, the angle of the swinging chute is measured by utilizing the trigonometric function relation of the triangle formed by the hinge point and the fixed point, the measurement precision is very high, and the angle of the swinging chute is calculated by the trigonometric function, so that the precision of the angle of the swinging chute is the precision of the rotation angle of the crankshaft. The measured result is displayed by the display device, and the swing direction of the swing chute can be judged by the positive and negative values of the swing angle, so that the method is high in reliability, strong in practicability and convenient to popularize and use. The method can realize automatic detection of the swing angle and continuous detection from time to time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a flowchart of a method for detecting a swing angle of a swing chute according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a state of upward movement of a connecting rod according to an embodiment of the present invention.
Fig. 3 is a schematic view illustrating a downward movement of a connecting rod according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of an angle indicating disc in the prior art.
Reference numeral 1-connecting rod, 2-crankshaft and 3-swinging chute.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," "coupled," and "connected" are used in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium, or may be in communication with the interior of two elements. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.
As shown in fig. 1 to 3, the method for detecting the swing angle of the swing chute provided by the embodiment of the invention comprises the following steps:
An output shaft of the speed reducing motor is connected with a rotating shaft of the crankshaft 2, the crankshaft 2 rotates around a point A, the swinging chute 3 is hinged to a point B, and the point A and the point B are fixed points. An angle detection device is arranged on the output shaft of the gear motor.
In the initial state, the end part of the crankshaft 2 and the upper end of the connecting rod 1 are hinged at a point D, the lower end of the connecting rod 1 and the swinging chute 3 are hinged at a point C, and four hinged points form a quadrilateral ABCD.
And controlling a gear motor to start, wherein the gear motor drives a connecting rod 1 to move through a crankshaft 2, and after the connecting rod 1 drives a swinging chute 3 to move, the crankshaft 2 and the upper end of the connecting rod 1 are hinged at an E point, the lower end of the connecting rod 1 and the swinging chute 3 are hinged at an F point, and four hinged points form a quadrilateral ABFE. The quadrilateral ABFE and the quadrilateral ABCD are located in the same plane, and the plane is perpendicular to the rotation axis of the crankshaft 2, so as to ensure the accuracy of the calculated angle.
The two ends of the connecting rod 1 are respectively hinged to the crankshaft 2 and the swinging chute 3, the hinge points at the two ends of the connecting rod 1 are movable points, after the connecting rod 1 moves, the hinge points at the two ends of the connecting rod 1 change in space position, the hinge point at the upper end of the connecting rod 1 moves from the point D to the point E, and the hinge point at the lower end of the connecting rod 1 moves from the point C to the point F.
The numerical value of the rotation angle DAE of the crankshaft 2 is obtained through the angle detection device.
Dividing the quadrilateral ABFE into a triangle EAF and a triangle FAB, and calculating the length of the line segment AF according to the cosine theorem.
And calculating the numerical value of the angle ABF according to the cosine theorem and the length of the line segment AF.
Calculating a swinging angle CBF of the swinging chute 3, wherein the angle CBF is = -ABF- & ltABC, and the angle ABC is a constant.
When the swing angle CBF is positive, the connecting rod 1 moves upwards, and the point B of the swing chute 3 swings upwards. The swinging chute 3 is inclined to the right.
When the swing angle CBF is a negative value, the connecting rod 1 moves downwards, the point B of the swing chute 3 swings downwards, and the swing chute 3 tilts leftwards.
In this embodiment, calculating the length of the line segment AF according to the cosine law includes the following steps:
in triangular EAF ,COS∠EAF＝(AE2+AF2-EF2)÷(2*AE*AF)＝(L12+X2-L42)÷(2*L1*X).
In triangle FAB ,COS∠FAB＝(AF2+AB2-BF2)÷(2*AF*AB)＝(L22+X2-L32)÷(2*L2*X).
Since +.dae = -EAF- & lt DAF = -EAF- (-DAC +.caf) = -EAF- (-DAC +.cab- & lt FAB- & lt CAB) = -EAF +.fab- & lt DAC- & lt CAB.
Therefore ,∠DAE＝arccos((L12+X2-L42)÷(2*L1*X))+arccos((L22+X2-L32)÷(2*L2*X))-∠DAC-∠CAB. there is only one unknown in the equation, so the line segment AF size can be obtained directly by calculation.
The line segment af=x, the line segment ae=constant L1, the line segment ab=constant L2, the line segment bf=constant L3, the line segment ef=constant L4, and the angle ++dac and the angle ++cab are constants.
In this embodiment, calculating the angle of +_abf according to the cosine theorem in combination with the length of the line segment AF includes the following steps:
In triangle ABF ,COS∠ABF＝(AB2+BF2-AF2)÷(2*AB*BF)＝(L22+L32-X2)÷(2*L2*L3).
I.e. < abf= arccos ((L2 2+L32-X2)/(2×l2×l3)).
In this embodiment, l1=380 mm, l2=5567.82mm, l3=1000 mm, l4=5348 mm, +_dac= 77.63 degrees, +_cab=10.33 degrees, and +_cba=76.16 degrees.
The invention can realize the electronic automatic detection of the swing angle of the swing chute 3, thereby improving the automation, the digitalization and the intelligent performance of the swing chute 3 and blast furnace cast house equipment. And simultaneously, the labor intensity of operators in front of the furnace is reduced.
According to the invention, the angle of the swinging chute 3 is measured by utilizing the trigonometric function relation of the triangle formed by the hinge point and the fixed point, the measurement precision is very high, and the angle of the swinging chute 3 is calculated by the trigonometric function, so that the precision of the angle of the swinging chute 3 is the precision of the rotation angle of the crankshaft 2. The measured result is displayed by the display device, and the swing direction of the swing chute 3 can be judged by the positive and negative values of the swing angle, so that the method has high reliability and strong practicability and is convenient to popularize and use. The method can realize automatic detection of the swing angle and continuous detection from time to time. The method has simple calculation process, and can meet the use requirement by adopting a small central processing unit, so the processing system related to the method has the characteristics of small volume, low cost, strong adaptability and the like. The angle detection device adopts a rotary encoder which can accurately measure the rotation angle of the crankshaft 2, and the value precision is higher than one ten thousandth.
In the present embodiment, it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310835570.1A CN116608815B (en) | 2023-07-10 | 2023-07-10 | Detection method for swing angle of swing chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310835570.1A CN116608815B (en) | 2023-07-10 | 2023-07-10 | Detection method for swing angle of swing chute |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116608815A CN116608815A (en) | 2023-08-18 |
| CN116608815B true CN116608815B (en) | 2025-11-21 |
Family
ID=87685616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310835570.1A Active CN116608815B (en) | 2023-07-10 | 2023-07-10 | Detection method for swing angle of swing chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116608815B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120084267B (en) * | 2025-05-06 | 2025-09-05 | 西安爱德华测量设备股份有限公司 | Method for measuring probe angle using three-dimensional coordinate measuring machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN220300765U (en) * | 2023-07-10 | 2024-01-05 | 中钢集团西安重机有限公司 | Blast furnace swing chute |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201857401U (en) * | 2010-07-28 | 2011-06-08 | 程树森 | System for detecting angle of inclination of blast furnace chute |
| US9354088B2 (en) * | 2012-02-15 | 2016-05-31 | Tokyo Seimitsu Co., Ltd. | Rotation angle measurement device and rotation angle measurement method |
| KR20140003265A (en) * | 2012-06-29 | 2014-01-09 | 주식회사 허그정보기술 | Method for measuring movement angle of joint |
| CN105300337A (en) * | 2014-06-26 | 2016-02-03 | 南京梅山冶金发展有限公司 | Method for detecting angle of pitching mechanism of arm type bucket-wheel stacker-reclaimer |
| CN205629347U (en) * | 2016-04-11 | 2016-10-12 | 徐州浩通新材料科技股份有限公司 | Coin silver spindle chute heating device |
| CN107192368B (en) * | 2017-05-26 | 2019-10-08 | 中国科学院光电技术研究所 | A Method for Measuring Rotation Angle of Fixed Axis in Three-Point Facet |
| CN207741730U (en) * | 2018-01-03 | 2018-08-17 | 中车青岛四方机车车辆股份有限公司 | The measuring device of pivot angle between a kind of hitch and car body |
| CN108692667A (en) * | 2018-04-16 | 2018-10-23 | 河南厚德电力科技有限公司 | The measurement method of concrete masonry arc-shaped surface radius and inclination angle of inclined plane |
| CN110645865A (en) * | 2019-08-06 | 2020-01-03 | 桂林福达曲轴有限公司 | Method for detecting 90-degree division deviation of connecting rod neck of crankshaft of automobile engine |
| CN110542357B (en) * | 2019-08-23 | 2024-04-16 | 刘建聪 | Polygonal angle-expandable measuring folding rule and angle measuring method |
| CN216210635U (en) * | 2021-10-15 | 2022-04-05 | 中钢集团西安重机有限公司 | Sizing machine control device |
-
2023
- 2023-07-10 CN CN202310835570.1A patent/CN116608815B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN220300765U (en) * | 2023-07-10 | 2024-01-05 | 中钢集团西安重机有限公司 | Blast furnace swing chute |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116608815A (en) | 2023-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907217A (en) | High precision positioning gimbal | |
| CN116608815B (en) | Detection method for swing angle of swing chute | |
| CN105698714B (en) | Motion scan tunnel drift section and volume measurement device and its measurement method | |
| CN105157782A (en) | Material pile measuring system based on laser range finding technology | |
| CN107831551A (en) | A kind of apparatus and method for measuring acceleration of gravity | |
| CN220300765U (en) | Blast furnace swing chute | |
| CN204989991U (en) | Industrial cloud platform | |
| CN206531736U (en) | One kind building optical cable bend resistance performance testing device | |
| CN201237569Y (en) | Fast tester for emulsified asphalt cement mortar fluidity | |
| CN106625244B (en) | Copper CMP on-line measurement point real-time location method and system | |
| CN217980223U (en) | Highway bridge tunnel crack depth measuring equipment | |
| CN111720706A (en) | A tripod capable of self-leveling, working method and application | |
| CN207636441U (en) | A kind of water-reducing agent viscosity detecting device | |
| CN205861717U (en) | A kind of generator amature ventilating duct wind speed tester | |
| CN205826691U (en) | A kind of device measuring unimodal current flow velocity | |
| CN110927408B (en) | Anemograph adjusting device and method and electronic equipment | |
| CN202676135U (en) | Remote real-time monitoring device | |
| CN208091365U (en) | A kind of luffing range of cantilever support angle detection device | |
| CN206161676U (en) | Calibrating installation of FP series current meter | |
| CN105758299A (en) | Novel two-dimensional laser scanning equipment | |
| CN108507458A (en) | A kind of luffing range of cantilever support angle detection device | |
| CN114070162A (en) | Low-speed high-precision encoder and control method thereof | |
| CN110045279B (en) | Method and system for calibrating proportional relation between torque and current of motor and terminal equipment | |
| CN207717109U (en) | A kind of servo turntable to be tested the speed based on absolute type encoder angle measurement | |
| CN222896276U (en) | A sensor detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |