CN112816170A - Rotary pellet falling strength detection device and use method thereof - Google Patents

Rotary pellet falling strength detection device and use method thereof Download PDF

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Publication number
CN112816170A
CN112816170A CN202110314383.XA CN202110314383A CN112816170A CN 112816170 A CN112816170 A CN 112816170A CN 202110314383 A CN202110314383 A CN 202110314383A CN 112816170 A CN112816170 A CN 112816170A
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CN
China
Prior art keywords
loader
pellets
detection device
strength detection
rotary
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Pending
Application number
CN202110314383.XA
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Chinese (zh)
Inventor
李建云
刘智伟
耿斐
江丹
董晓春
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Shandong Iron and Steel Co Ltd
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Shandong Iron and Steel Co Ltd
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Priority to CN202110314383.XA priority Critical patent/CN112816170A/en
Publication of CN112816170A publication Critical patent/CN112816170A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/08Shock-testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/04Chucks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/303Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/001Impulsive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/006Crack, flaws, fracture or rupture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0262Shape of the specimen
    • G01N2203/0276Spherical specimens

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to a rotary pellet falling strength detection device and a use method thereof, wherein the rotary pellet falling strength detection device comprises a fixed frame and a rotating frame, two loaders respectively positioned at the upper side and the lower side of a transverse hinge shaft are fixedly arranged on the rotating frame, a plurality of conical holes extending vertically are formed in the loaders, the conical holes in the two loaders are respectively and coaxially arranged, the large-diameter end of the conical hole of the upper loader faces downwards, and the large-diameter end of the conical hole of the lower loader faces upwards; the loader is provided with jacks extending along the horizontal direction and transversely penetrating through the taper holes, the jacks of the upper side loader are inserted with inserting plates, and the pellets are positioned in the taper holes and supported on the upper surfaces of the inserting plates. According to the invention, the plurality of taper holes are formed in the loader, so that the falling strength detection of a plurality of pellets can be completed at one time, and the detection efficiency is greatly improved; the two charging devices are fixedly connected with the rotating frame, so that the distance between the two charging devices is fixed and unchanged, and the distance of the pellets falling each time is ensured to be consistent.

Description

Rotary pellet falling strength detection device and use method thereof
Technical Field
The invention relates to the technical field of metallurgical pellet detection, in particular to a rotary pellet falling strength detection device and a use method thereof.
Background
The falling strength of the pellets is an important index for measuring the impact resistance of the pellets in the transfer process, and is also a basis for allowing the rotation times of the pellets in the design of a pellet mill. According to the different requirements of pellet factories on pellets, the falling strength of the pellets comprises the falling strength of wet pellets and the falling strength of dry pellets, and the detection method comprises the following steps: 30 pellets with fixed size range are freely dropped onto a steel plate with the thickness of 5mm from a position of 0.5m until the pellets crack, and the average value of the pellets is taken as an index of green pellet dropping strength, and the unit of the green pellet dropping strength is 0.5 m.
At present, a pellet falling strength detection method is generally adopted in a pellet factory for pellet falling strength detection in the whole process, only one pellet can be detected at a time, the falling strength detection work of a pellet sample can be completed only by repeating 30 times of detection, and if a plurality of groups of pellets need to detect the falling strength, a long detection time needs to be consumed. And when manual operation is carried out, the consistency of the falling distance of the pellets is poor, and certain adverse effect is brought to the accuracy of the detection result.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the rotary pellet falling strength detection device and the use method thereof, which ensure that the falling distances of pellets are consistent each time and greatly improve the detection efficiency.
The invention is realized by the following technical scheme, and provides a rotary pellet falling strength detection device, which comprises a fixed frame and a rotating frame which is rotationally connected with the fixed frame through a transverse hinge shaft, wherein the rotating frame can rotate around the axis of the transverse hinge shaft, two feeders which are respectively positioned at the upper side and the lower side of the transverse hinge shaft are fixedly arranged on the rotating frame, a plurality of conical holes which extend along the vertical direction are arranged on the feeders, the inner diameter of the large-diameter end of each conical hole is larger than the outer diameter of a pellet, the inner diameter of the small-diameter end of each conical hole is smaller than the outer diameter of the pellet, the conical holes on the two feeders are respectively coaxially arranged, the large-diameter end of the conical hole of the upper feeder faces downwards, the large-diameter end of the conical hole of the lower feeder faces upwards, and the pellet falling from the feeder positioned above falls into the conical hole of the; the loader is provided with jacks extending along the horizontal direction and transversely penetrating through the taper holes, the jacks of the upper side loader are inserted with inserting plates, and the pellets are positioned in the taper holes and supported on the upper surfaces of the inserting plates.
This scheme is through two chargers that set up, one is used for depositing a plurality of pellets that wait to detect, another is used for accepting the pellet that falls, turn the swivel mount to vertical direction during the use, make two chargers be located same vertical plane, the pellet once falls the back, position adjustment through the picture peg, and 180 rotations of swivel mount, make the position and the function exchange of two chargers, because two chargers relatively fixed set up, consequently, guaranteed that the distance that the pellet falls at every turn is unanimous, through set up a plurality of taper holes on the charger, the pellet quantity of at every turn operating has been increased, and the detection efficiency is improved.
As optimization, the level gauge is installed on the loader and is positioned on the surface of the large-diameter end of the taper hole. This optimization scheme is through setting up the spirit level on the loader, makes things convenient for the operator to judge that the loader changes to the horizontality, further guarantees that two loaders are located same vertical plane, improves the accuracy that detects.
As optimization, the height-adjustable walking wheel device further comprises a base and a height-adjustable walking wheel arranged on the base, the fixing frame is fixed on the upper surface of the base, and a level gauge is arranged on the upper surface of the base. This optimization scheme is through setting up the walking wheel, makes things convenient for the bulk movement of device, and the altitude interval through walking wheel and base is adjustable, conveniently carries out the leveling to the base to make things convenient for the leveling of glassware.
Preferably, the fixing frame comprises two oppositely arranged supporting plates, and bearings matched with the transverse hinge shafts are mounted on the supporting plates. The fixing frame of the optimized scheme adopts the supporting plate as a support, has a simple structure, and is convenient to ensure the vertical relation between the fixing frame and the base, thereby reducing the manufacturing difficulty, reducing the mutual abrasion between the transverse hinge shaft and the supporting plate by arranging the bearing, and prolonging the service life.
Preferably, the rotating frame comprises two vertical rods which are parallel to each other, the outer side surfaces of the central positions of the two vertical rods are fixedly connected with the transverse hinge shaft, and the two charging devices are fixedly connected to the inner side surfaces of the two vertical rods. The revolving rack of the optimized scheme has a simple structure, reduces the labor intensity of manual operation, reduces the shielding area of the loader, and is convenient to place and take out pellets.
Preferably, a handle is fixedly arranged on the side surface of the loader parallel to the transverse hinge shaft. This optimization scheme has made things convenient for the rotatory operation of staff to the swivel mount through install the handle on the loader, has improved detection efficiency.
The scheme also provides a using method of the rotary pellet falling strength detection device, which comprises the following steps:
the method comprises the following steps: moving the rotary pellet falling strength detection device to a supporting table surface, and adjusting the height of a travelling wheel to enable a level gauge on a loader to be in a horizontal state;
step two: respectively placing the selected pellets in each conical hole of a lower feeder, and inserting an inserting plate into an inserting hole of a lower feeder to enable the inserting plate to cover each pellet of the lower feeder;
step three: grasping a handle on a blanking device, rotating a rotating frame, rotating the rotating frame by 180 degrees, and rotating a loader inserted with an inserting plate to a position right above another loader to realize the position exchange of the upper loader and the lower loader, wherein a level gauge on the loader is in a horizontal state; then the inserting plate is drawn out, and the pellets in the upper loader vertically fall into the tapered hole of the lower loader under the action of self gravity; observing the pellets in the conical holes one by one, taking out the cracked pellets, recording the number of the cracked pellets, and inserting the inserting plate into the inserting hole of the loader below after the inspection is finished;
step four: and repeating the third step until all the pellets are cracked.
The invention has the beneficial effects that: the falling strength detection of a plurality of pellets is completed at one time by arranging a plurality of taper holes on the loader, so that the detection efficiency is greatly improved; the two charging devices are fixedly connected with the rotating frame, so that the distance between the two charging devices is fixed and unchanged, and the distance of the pellets falling each time is ensured to be consistent.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the loader according to the invention;
FIG. 3 is a top view of the structure of the charger of the present invention;
shown in the figure:
1. the device comprises a handle, 2, a loader, 3, a jack, 4, a level gauge, 5, a rotating frame, 6, a bearing, 7, a transverse hinge shaft, 8, a fixing frame, 9, an inserting plate, 10, a base, 11, a height-adjustable travelling wheel, 12 and a taper hole.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in figure 1, a rotation type pelletizing intensity detection device that falls, including base 10, mount 8 to and rotate the swivel mount 5 of being connected through horizontal hinge 7 and mount, the upper surface mounting of base has the spirit level, and the lower surface mounting of base has 3~4 height-adjustable walking wheels 11, and height-adjustable walking wheels 11 adopts prior art, and walking wheel direction and the distance from the base can finely tune, the removal and the adjustment of base upper surface level of being convenient for detection device position.
Two charging devices 2 which are respectively positioned at the upper side and the lower side of the transverse hinge shaft are fixedly arranged on the rotating frame 5, a plurality of vertical through taper holes 12 are formed in the charging devices 2, the inner diameter of the large-diameter end of each taper hole is larger than the outer diameter of each pellet, the inner diameter of the small-diameter end of each taper hole is smaller than the outer diameter of each pellet, the taper holes in the two charging devices are respectively and coaxially arranged, the large-diameter end of each taper hole of the upper side charging device faces downwards, and the large-diameter end of each taper hole of the lower side charging device faces.
The loader is provided with a jack 3 which extends along the horizontal direction and transversely penetrates through each taper hole, an inserting plate 9 is inserted into the jack of the upper loader, the inserting plate can be freely inserted into the jack, and the pellets are positioned in the taper holes and supported on the upper surface of the inserting plate. The loader is provided with a level gauge 4 which is positioned on the surface of the large-diameter end of the taper hole, and the loader is fixedly provided with a handle 1 on the side surface parallel to the transverse hinge shaft.
The mount is fixed in the upper surface of base, and is specific, and the mount includes the backup pad of two relative settings, installs in the backup pad with the bearing 6 of horizontal hinge shaft adaptation, the bearing of this embodiment is ball bearing.
The rotating frame comprises two vertical rods which are parallel to each other, the outer side surfaces of the central positions of the two vertical rods are fixedly connected with the transverse hinge shaft, the two charging devices are fixedly connected to the inner side surfaces of the two vertical rods, the transverse hinge shaft is perpendicular to the vertical rods, and the transverse hinge shaft and the vertical rods are made of steel.
Specifically, the base is made of steel or cement, and the shape of the base is a cube, a cuboid or a prismatic table, so that the gravity center of the whole device is stabilized. The backup pad is narrow from top to bottom wide, is made by steel, and the thickness of backup pad is 10mm ~20mm, backup pad and base upper surface mutually perpendicular. The charger is made of steel, the upper surface and the lower surface of the charger are parallel to each other, the thickness of the charger is 20 mm-50 mm, the number of the taper holes is 30, the taper holes are distributed in a matrix manner, the inner diameter of the large-diameter end of each taper hole is 20 mm-30 mm, and the inner diameter of the small-diameter end of each taper hole is 5 mm-7 mm; the end face of the small-diameter end of the taper hole is parallel to the surface of the loader far away from the large-diameter end of the taper hole, and the distance is 5 mm-10 mm. The height of the jack is 2mm ~5mm, and the picture peg is made by 1mm ~4 mm's steel sheet or duroplasts, and the upper and lower two sides of picture peg are parallel to each other, and the picture peg can cover all taper holes on the loader after inserting the jack on the loader.
After the inserting plate is inserted into the inserting hole of one loader, the distance from the surface of the inserting plate facing to the small-diameter end of the taper hole of the loader to the end surface of the small-diameter end of the taper hole of the other loader is 500 mm.
The application method of the rotary pellet falling strength detection device comprises the following steps:
the method comprises the following steps: moving the rotary pellet falling strength detection device to a supporting table surface, and adjusting the height of a travelling wheel to enable a level gauge on a loader to be in a horizontal state;
step two: respectively placing the selected 30 pellets in each conical hole of a lower side feeder, and inserting an inserting plate into an inserting hole of a lower side feeder to enable the inserting plate to cover each pellet of the lower side feeder;
step three: grasping a handle on the blanking device on the upper side, rotating a rotating frame to enable the rotating frame to rotate 180 degrees, enabling a loader inserted with an inserting plate to rotate to a position right above another loader, realizing the position exchange of the upper loader and the lower loader, enabling a level gauge on the loader to be in a horizontal state, then drawing out the inserting plate, and enabling pellets in the upper loader to vertically fall into a conical hole of the lower loader under the action of self gravity; observing the pellets in the conical holes one by one, taking out the cracked pellets, recording the number of the cracked pellets, and inserting the inserting plate into the inserting hole of the loader below after the inspection is finished;
step four: and repeating the third step until all the pellets are cracked.
The invention can complete the drop strength detection of a group of pellets at one time, thereby greatly improving the working efficiency; the distance of each falling of the pellet is fixed, so that human errors are eliminated, and the detection result is more accurate.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a rotation type pelletizing intensity detection device that falls which characterized in that: the rotary feeding device comprises a fixed frame (8) and a rotary frame (5) which is rotatably connected with the fixed frame through a transverse hinge shaft (7), wherein two charging devices (2) which are respectively positioned at the upper side and the lower side of the transverse hinge shaft are fixedly arranged on the rotary frame (5), a plurality of conical holes (12) which extend vertically are formed in the charging devices (2), the inner diameter of the large-diameter end of each conical hole is larger than the outer diameter of a pellet, the inner diameter of the small-diameter end of each conical hole is smaller than the outer diameter of the pellet, the conical holes in the two charging devices are coaxially arranged respectively, the large-diameter end of each conical hole of the upper charging device faces downwards, and the large-diameter end of;
the loader is provided with insertion holes (3) which extend along the horizontal direction and transversely penetrate through the taper holes, the insertion holes of the upper side loader are inserted with insertion plates (9), and the pellets are positioned in the taper holes and supported on the upper surfaces of the insertion plates.
2. The rotary pellet falling strength detection device according to claim 1, wherein: the level gauge (4) is installed on the loader and is positioned on the surface of the large-diameter end of the taper hole.
3. The rotary pellet falling strength detection device according to claim 1, wherein: the height-adjustable walking wheel device is characterized by further comprising a base (10) and height-adjustable walking wheels (11) installed on the base, the fixing frame is fixed on the upper surface of the base, and a level gauge is installed on the upper surface of the base.
4. The rotary pellet falling strength detection device as claimed in claim 3, wherein: the fixing frame comprises two opposite supporting plates, and bearings (6) matched with the transverse hinge shafts are mounted on the supporting plates.
5. The rotary pellet falling strength detection device as claimed in claim 4, wherein: the rotating frame comprises two vertical rods which are parallel to each other, the outer side surfaces of the central positions of the two vertical rods are fixedly connected with the transverse hinge shaft, and the two charging devices are fixedly connected to the inner side surfaces of the two vertical rods.
6. The rotary pellet falling strength detection device according to claim 1, wherein: a handle (1) is fixedly arranged on the side surface of the charger parallel to the transverse hinge shaft.
7. The use method of the rotary pellet falling strength detection device as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
the method comprises the following steps: moving the rotary pellet falling strength detection device to a supporting table surface, and adjusting the height of a travelling wheel to enable a level gauge on a loader to be in a horizontal state;
step two: respectively placing the selected pellets in each conical hole of a lower feeder, and inserting an inserting plate into an inserting hole of a lower feeder to enable the inserting plate to cover each pellet of the lower feeder;
step three: rotating the rotating frame to enable the loader inserted with the inserting plate to rotate to a position right above the other loader, then drawing out the inserting plate, and enabling the pellets in the upper loader to vertically fall into a conical hole of the lower loader under the action of self gravity; observing the pellets in the conical holes one by one, taking out the cracked pellets, recording the number of the cracked pellets, and inserting the inserting plate into the inserting hole of the loader below after the inspection is finished;
step four: and repeating the third step until all the pellets are cracked.
CN202110314383.XA 2021-03-24 2021-03-24 Rotary pellet falling strength detection device and use method thereof Pending CN112816170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110314383.XA CN112816170A (en) 2021-03-24 2021-03-24 Rotary pellet falling strength detection device and use method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110314383.XA CN112816170A (en) 2021-03-24 2021-03-24 Rotary pellet falling strength detection device and use method thereof

Publications (1)

Publication Number Publication Date
CN112816170A true CN112816170A (en) 2021-05-18

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Application Number Title Priority Date Filing Date
CN202110314383.XA Pending CN112816170A (en) 2021-03-24 2021-03-24 Rotary pellet falling strength detection device and use method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113295558A (en) * 2021-07-27 2021-08-24 江苏金圣棋盘玻璃科技发展有限公司 Automobile front windshield outgoing detection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113295558A (en) * 2021-07-27 2021-08-24 江苏金圣棋盘玻璃科技发展有限公司 Automobile front windshield outgoing detection system
CN113295558B (en) * 2021-07-27 2021-09-17 江苏金圣棋盘玻璃科技发展有限公司 Automobile front windshield outgoing detection system

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