CN112484496A - Automatic lifting turnover mechanism for refractory material thermal shock test device - Google Patents
Automatic lifting turnover mechanism for refractory material thermal shock test device Download PDFInfo
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- CN112484496A CN112484496A CN202011382142.0A CN202011382142A CN112484496A CN 112484496 A CN112484496 A CN 112484496A CN 202011382142 A CN202011382142 A CN 202011382142A CN 112484496 A CN112484496 A CN 112484496A
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- Prior art keywords
- sample
- overturning
- automatic
- rack
- automatic lifting
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 239000011819 refractory material Substances 0.000 title claims abstract description 17
- 230000007306 turnover Effects 0.000 title claims abstract description 17
- 230000035939 shock Effects 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000010791 quenching Methods 0.000 abstract description 4
- 230000000171 quenching effect Effects 0.000 abstract description 4
- 239000011449 brick Substances 0.000 description 29
- 230000001960 triggered effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/02—Furnaces of a kind not covered by any preceding group specially designed for laboratory use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0051—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising means to pick up the charge and put it down
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0065—Lifts, e.g. containing the bucket elevators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to an automatic lifting turnover mechanism for a refractory material thermal shock test device, which comprises an automatic lifting system and an automatic turnover system, wherein a lifter adopted by the automatic lifting system is of a piston-movable pulley sprocket-chain combined structure, the up-and-down moving speed and the stroke of a sample are 2 times of those of a common lifting mechanism, and the heated sample can be rapidly immersed in a water cooling tank to meet the requirement of test standard quenching; the automatic overturning system adopts a combined mechanism consisting of an eccentric rotating shaft on the back of the sample holder, overturning gears on two sides of the sample holder, an overturning rack on the rack and the like, so that a sample can be automatically overturned in the up-and-down moving process, the end face of the sample is kept upward to enter/exit the furnace, and the end face of the sample is downward to enter/exit water, and an additional sample overturning driving mechanism is not needed; the automatic lifting turnover mechanism can realize full automation through a positioning control system without manual intervention/operation.
Description
Technical Field
The invention relates to experimental equipment in the technical field of refractory materials, in particular to an automatic lifting turnover mechanism for a refractory material thermal shock test device.
Background
The thermal shock resistance stability test of the refractory material is a test for simulating the damage of the refractory material caused by temperature change in a high-temperature environment, and is an important index for evaluating the performance of the refractory material. At present, the thermal shock stability test standard of the refractory material is a thermal shock resistance test method GB/T30873-2014 of the refractory material. The test principle is that under the condition of specified test temperature and cooling medium, a sample with a certain shape and size is subjected to temperature mutation of extreme heat quenching, and the thermal shock resistance of the refractory material is determined according to the breakage degree of the sample. The test process comprises the steps of mounting the dried refractory brick on a sample holder, conveying the refractory brick into a heating furnace heated to a certain temperature, preserving heat for 20min for quick heating, rapidly quenching the heated end of the sample in cold water for 3min, taking out the sample, airing the sample, conveying the sample into the heating furnace again, and repeatedly carrying out the quick cooling and quick heating process until the test is carried out until the heated end of the sample is half damaged or the appointed number of times is reached.
At present, conventional refractory material thermal shock resistance test equipment has certain technical defects, for example, the operation of feeding, discharging, water feeding and water discharging of a sample is generally realized manually through a sample holder, so that the test equipment is labor-consuming, time-consuming and dangerous; the sample is lifted and lowered through the screw rod and the lifter, and the speed is low and the time is long; and the turnover mechanism of the sample also has the defects of low speed and unstable transmission. The transmission mechanism can not rapidly enter water to be rapidly cooled after the sample is rapidly heated, so that the heat loss of the sample is large, the test result is seriously influenced, and the requirement is not in accordance with the test standard.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention solves the technical problem of providing the automatic lifting turnover mechanism for the refractory material thermal shock test device, which adopts a lifter, a piston and a chain to realize the rapid lifting of a sample, so that the sample can be rapidly immersed in water after being heated; the overturning gear, the overturning rack and the eccentric shaft structure on the sample holder are utilized to control the overturning of the standard brick sample, and the baffle on the lifting plate is used for adjusting to ensure that the end face of the sample is kept upward to enter/exit the furnace or the end face of the sample is downward to enter/exit water.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic lifting turnover mechanism for a refractory material thermal shock test device comprises an automatic lifting system and an automatic turnover system, and is characterized in that the automatic lifting system consists of a piston lifter, a mandril, a movable pulley chain wheel, a chain, a controller A, a positioning controller B, a positioning controller C and a positioning controller D, wherein the piston lifter is fixed on a rack outside a heating furnace and is connected with the movable pulley chain wheel through the mandril, one end of the chain is fixed on the rack, and the other end of the chain penetrates through the movable pulley chain wheel and is connected with the automatic turnover system; the positioning controller A, the positioning controller B, the positioning controller C and the positioning controller D are respectively arranged on a rack outside the heating furnace;
the automatic overturning system is composed of a lifting plate, a baffle, a clamp holder, an overturning gear and an overturning rack, wherein the baffle is arranged on the lifting plate, the lifting plate is connected with a chain of the automatic lifting system, an eccentric shaft penetrates through an eccentric hole formed in the clamp holder and is connected with the lifting plate, the overturning gears are arranged on two sides of the clamp holder, and the overturning racks are respectively fixedly arranged on a heating furnace bottom seat frame located on the central line of a heating furnace door and meshed with the overturning gear.
Two ends of the overturning rack are respectively provided with a section of toothless part.
Compared with the prior art, the invention has the beneficial effects that:
1) the automatic sample lifting system adopts a lifter in a piston-movable pulley sprocket-chain combined structure, the up-and-down moving speed and the stroke of the sample are 2 times of those of a common lifting mechanism, the heated sample can be rapidly immersed in a water cooling tank, and the requirement of test standard quenching is met;
2) the automatic sample overturning system adopts a combined mechanism consisting of an eccentric rotating shaft on the back of the sample holder, overturning gears on two sides of the sample holder, an overturning rack on the rack and the like, so that a sample can be automatically overturned in the up-and-down moving process, the end face of the sample is kept upward to enter/exit the furnace, and the end face of the sample is downward to enter/exit water, and an additional sample overturning driving mechanism is not needed;
3) the automatic sample lifting-overturning mechanism can realize full automation through a positioning control system without manual intervention/operation.
Drawings
FIG. 1 is a schematic front view of the structural principle of the present invention;
FIG. 2 is a right side view of the structural principle of the present invention (with the camera removed and the furnace sectioned);
fig. 3 is a schematic front view of the principle of the three-dimensional structure of the present invention.
In the figure: 1-heating furnace 2-heating unit 3-standard brick sample 4-clamper 5-eccentric shaft 6-piston lifter 7-water cooling tank 10-furnace door 11-furnace door switch rack 12-furnace door positioning controller 13-furnace door switch gear 14-lifting plate 15-positioning controller A16-positioning controller B17-positioning controller C18-positioning controller D19-frame 20-turnover rack 21-turnover gear 22-camera 23-ejector rod 24-movable pulley sprocket 25-chain 26-baffle plate
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1-3, the automatic lifting and turning mechanism for a refractory material thermal shock test device comprises an automatic lifting system and an automatic turning system, wherein the automatic lifting system comprises a piston lifter 6, a push rod 23, a movable pulley sprocket 24, a chain 25, a controller a15, a positioning controller B16, a positioning controller C17 and a positioning controller D18, the piston lifter 6 is fixed on a frame 19 outside the heating furnace 1 and connected with the movable pulley sprocket 24 through the push rod 23, one end of the chain 25 is fixed on the frame 19, and the other end of the chain 25 passes through the movable pulley sprocket 24 and is connected with the automatic turning system; the positioning controller A15, the positioning controller B16, the positioning controller C17 and the positioning controller D18 are respectively arranged on the frame 19 outside the heating furnace 1 so as to accurately control the lifting position of the standard brick sample 3 and the time for starting lifting or overturning;
the automatic overturning system is composed of a lifting plate 14, a baffle 26, a holder 4, an overturning gear 21 and an overturning rack 20, wherein the baffle 26 is arranged on the lifting plate 14, the lifting plate 14 is connected with a chain 25 of the automatic lifting system, an eccentric shaft 5 penetrates through an eccentric hole formed in the holder 4 to be connected with the lifting plate 14, the overturning gears 21 are arranged on two sides of the holder 4, and the overturning racks 20 are respectively fixedly arranged on a base frame of the heating furnace 1 on the central line of a furnace door 10 of the heating furnace 1 and meshed with the overturning gear 21.
Two ends of the overturning rack 20 are respectively provided with a section of toothless part, the overturning gear 21 moves to be separated from the overturning rack 20, and the heated end of the standard brick sample 3 is vertically led into/out of the heating furnace 1 towards the right upper side or vertically led into/out of the water cooling tank 7 towards the right lower side by means of the self eccentric force of the standard brick sample 3 and the baffle 26 on the lifting plate 14.
The working principle comprises the following operation steps:
1) a standard brick sample 3 is arranged in the clamp holder 4 and is fixed by screws;
2) after the furnace temperature rises to the set temperature and is kept warm for a period of time, a furnace door switch controller 12 is triggered to open a furnace door 10 through a furnace door switch rack 11 and a furnace door switch gear 13, a piston lifter button is started, a piston lifter 6 drives an ejector rod 23 and a movable pulley chain wheel 24 upwards, a chain 25 drives a lifting plate 14 and a clamp holder 4 to send a standard brick sample 3 into the heating furnace 1 under the rotation of the movable pulley chain wheel 24, and when the top end of the standard brick sample 3 enters the furnace of the heating furnace 1 for a set depth, a positioning controller A15 is triggered to stop the rising of the piston lifter 6;
3) after the standard brick sample 3 is heated in the heating furnace 1 for a specified time, the piston lifter 6 descends, the lifting plate 14 and the clamper 4 pull the chain 25 to rapidly move downwards under the action of the self gravity of the sample 3, and when the standard brick sample 3 completely leaves the furnace door 10, the furnace door switch controller 12 is triggered, and the furnace door 10 is closed; meanwhile, the overturning gear 21 on the holder 4 is contacted and meshed with an overturning rack 20 fixed on a base frame of the heating furnace 1, and the standard brick sample 3 is enabled to generate overturning motion while descending under the action of the eccentric shaft 5 on the sample holder 4;
4) when the standard brick sample 3 descends and turns over until the heating end face faces to the horizontal direction, the positioning controller C17 is triggered, the lifting mechanism 6 pauses for 2 seconds, and after the camera 22 photographs the heating end face of the standard brick sample 3, the piston lifter 6 continues to descend;
5) the clamp holder 4 is driven by the eccentric shaft to continuously descend and turn, when the heating end face of the standard brick sample 3 is close to and faces to the right lower part, the turning gear 21 is separated from the turning rack 20 (to the toothless part of the turning rack 20), and the standard brick sample 3 is rotated to a state that the heating end face faces to the right lower part under the action of the eccentric force of the standard brick sample 3 and the restraint of the baffle 26 on the lifting plate 14;
6) the standard brick sample 3 keeps the heating end face facing to the right lower part and continues to descend and immerse into the water cooling tank 7, when the immersion depth reaches the specified size, the positioning controller D18 is triggered, and the piston lifter 6 stops descending;
7) after the standard brick sample 3 is immersed in the water cooling tank 7 for a specified time, a piston lifter button is started, the piston lifter 6 drives the ejector rod 23 and the movable pulley sprocket 24 upwards, the chain 25 drives the lifting plate 14 and the holder 4 to move upwards under the rotation of the movable pulley sprocket 24, when the overturning gear 21 on the holder 4 is contacted and meshed with the overturning rack 20 fixed on the pedestal frame of the heating furnace bottom 1, the eccentric shaft 5 on the sample holder 4 starts to rotate to drive the standard brick sample 3 to overturn while ascending, when the standard brick sample 3 rotates to the heating end and faces to the horizontal direction, the positioning controller C17 is triggered, the piston lifter 6 pauses for 10 seconds, the camera 22 shoots the heating end face of the standard brick sample 3 again, and the piston lifter 6 is started to drive the sample 3 to continuously ascend;
8) the automatic lifting system continues to rise, the standard brick sample 3 continues to turn over, when the heated surface of the standard brick sample 3 approaches to face the right upper side, the turning gear 21 on the clamp holder 4 is separated from the turning rack 20, under the action of the eccentric force of the standard brick sample 3 and the restraint of the baffle 26 on the lifting plate 14, the standard brick sample 3 is turned to the state that the heated end face faces the right upper side, meanwhile, the positioning controller B16 is triggered, and the piston lifter 6 stops;
9) and (3) keeping the heating end face of the standard type rotary sample 3 in an upward state for natural drying, opening the furnace door 10 after the drying time reaches the set time, lifting the standard type brick sample 3 into the heating furnace 1 by the automatic lifting system for quick heating, and repeating the processes of the steps 2) -8) until the damaged area of the heated end face of the standard type brick sample 3 reaches half or reaches the appointed number of times, and stopping/ending the experiment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. An automatic lifting turnover mechanism for a refractory material thermal shock test device comprises an automatic lifting system and an automatic turnover system, and is characterized in that the automatic lifting system consists of a piston lifter, a mandril, a movable pulley chain wheel, a chain, a controller A, a positioning controller B, a positioning controller C and a positioning controller D, wherein the piston lifter is fixed on a heating furnace rack and connected with the movable pulley chain wheel through the mandril, one end of the chain is fixed on the rack, and the other end of the chain penetrates through the movable pulley chain wheel to be connected with the automatic turnover system; the positioning controller A, the positioning controller B, the positioning controller C and the positioning controller D are respectively arranged on the heating furnace rack;
the automatic overturning system is composed of a lifting plate, a baffle, a clamp holder, an overturning gear and an overturning rack, wherein the baffle is arranged on the lifting plate, the lifting plate is connected with a chain of the automatic lifting system, an eccentric shaft penetrates through an eccentric hole formed in the clamp holder and is connected with the lifting plate, the overturning gears are arranged on two sides of the clamp holder, and the overturning racks are respectively fixedly arranged on a heating furnace frame located on the central line of a heating furnace door and meshed with the overturning gear.
2. The automatic lifting turnover mechanism for the refractory material thermal shock test device according to claim 1, characterized in that both ends of the turnover rack are respectively provided with a section of toothless part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382142.0A CN112484496B (en) | 2020-12-01 | 2020-12-01 | Automatic lifting turnover mechanism for refractory material thermal shock test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382142.0A CN112484496B (en) | 2020-12-01 | 2020-12-01 | Automatic lifting turnover mechanism for refractory material thermal shock test device |
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| Publication Number | Publication Date |
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| CN112484496A true CN112484496A (en) | 2021-03-12 |
| CN112484496B CN112484496B (en) | 2024-07-09 |
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| CN202011382142.0A Active CN112484496B (en) | 2020-12-01 | 2020-12-01 | Automatic lifting turnover mechanism for refractory material thermal shock test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603305A (en) * | 2022-04-06 | 2022-06-10 | 深圳市精科睿精密制品有限公司 | Two-sided welding frock of PCB board compaction upset |
| CN115261592A (en) * | 2022-06-27 | 2022-11-01 | 山东润金重工科技有限公司 | Combined material disc tool for heat treatment of bearing rolling body |
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| CN214276521U (en) * | 2020-12-01 | 2021-09-24 | 中冶焦耐(大连)工程技术有限公司 | Automatic lifting turnover mechanism for refractory material thermal shock test device |
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2020
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| CN115261592B (en) * | 2022-06-27 | 2024-02-20 | 山东润金重工科技有限公司 | Combined material tray tool for heat treatment of bearing rolling bodies |
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