CN112916138A - Mechanism testing machine and method for impact type machine-made sand - Google Patents
Mechanism testing machine and method for impact type machine-made sand Download PDFInfo
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- CN112916138A CN112916138A CN202110110662.4A CN202110110662A CN112916138A CN 112916138 A CN112916138 A CN 112916138A CN 202110110662 A CN202110110662 A CN 202110110662A CN 112916138 A CN112916138 A CN 112916138A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C13/1814—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor
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- Food Science & Technology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a mechanism testing machine and a mechanism testing method for impact type machine-made sand, which comprises a test box, wherein a turntable used for placing sand and stone raw materials is arranged in the test box, an impact plate surrounding a circle is detachably arranged on the periphery of the turntable, and a material blocking mechanism used for controlling the sand and stone raw materials to fly out is arranged on the turntable. The impact type mechanism testing machine for machine-made sand has the advantages of reasonable design, convenience in use, easiness in operation and strong practicability, can simulate the throwing and crushing conditions of the crushing process of the sand-stone raw material so as to more intuitively know the crushing process, and has certain practical significance for the research of the crushing process of the machine-made sand.
Description
Technical Field
The invention relates to a mechanism testing machine and a mechanism testing method for impact type machine-made sand.
Background
With the gradual shortage of natural sand, the replacement of natural sand by machine-made sand becomes a necessary way for the sustainable development of the concrete industry. The difference between the machine-made sand and the natural sand is comprehensively known, the material characteristics of the machine-made sand are accurately represented, particularly, the research on the production process of the machine-made sand is enhanced, the product quality of the machine-made sand is improved, and the continuous and healthy development of the machine-made sand in the concrete industry is promoted; because special equipment for simulating the sand stone raw material to be crushed to form the machine-made sand is lacked, the research on the machine-made sand production process is limited to a certain extent.
Disclosure of Invention
In view of the above, the invention aims to provide an impact type mechanism testing machine and method for machine-made sand, which are convenient to use and easy to operate, and can simulate the throwing and crushing conditions of a sand raw material in a crushing process.
The invention is realized by adopting the following scheme: the mechanism testing machine for the impact type mechanism sand comprises a test box, wherein a rotary table used for placing gravel raw materials is arranged in the test box, an impact plate surrounding a circle is detachably mounted on the periphery of the rotary table, and a material blocking mechanism used for controlling the gravel raw materials to fly out is arranged on the rotary table.
Furthermore, the material blocking mechanism comprises a fixed baffle and a movable baffle which block the sandstone raw material in the middle, the fixed baffle and the movable baffle form a V-shaped structure with an opening facing the center of the turntable, the movable baffle is hinged on the turntable and is connected with one end of a pull rope, the other end of the pull rope is connected on the turntable to limit the outward swinging of the movable baffle, and a torsional spring which pushes the movable baffle to swing outward is arranged at the hinged position of the movable baffle; also comprises a cutting mechanism used for cutting the pull rope.
Furthermore, the cutting mechanism comprises a push-pull electromagnet, and a push-pull rod of the push-pull electromagnet is connected with a cutter.
Furthermore, an upper fixed disc and a lower fixed disc which are positioned above and below the turntable are fixedly arranged in the test box, and the impact plate is positioned between the upper fixed disc and the lower fixed disc; the upper end and the lower end of the impact plate are respectively provided with a clamping block for clamping the end part of the impact plate, the upper side of the upper clamping block and the lower side of the lower clamping block are fixedly connected with screws which respectively penetrate through the upper fixing disc and the lower fixing disc, and the upper fixing disc and the lower fixing disc are provided with long holes which are used for the screws to penetrate through and are arranged along the radial direction.
Furthermore, the periphery of the test chamber is enclosed by a plurality of chamber doors, one side of each chamber door is hinged to the frame of the test chamber, and the other side of each chamber door is fixed on the frame of the test chamber through magnet adsorption.
Furthermore, the turntable is arranged on a rotating shaft in the middle, the upper end of the rotating shaft penetrates out of the test box upwards and is in transmission connection with a main shaft of a driving motor through a synchronous belt pulley and a synchronous belt, a abdicating hole for the rotating shaft to penetrate through is formed in the middle of the upper fixing disc and the lower fixing disc, and the upper end and the lower end of the rotating shaft are in rotating fit with the top of the test box and the top of the test box through bearings; the upper side of the test box is also provided with a control box.
Furthermore, the outer sleeve of the rotating shaft is provided with two connecting sleeves which are selectively matched with the rotating shaft and are respectively positioned above and below the rotating disc, the upper end of the connecting sleeve above the rotating disc is fixedly connected onto the upper fixed disc through a flange, and the lower end of the connecting sleeve below the rotating disc is fixedly connected onto the lower fixed disc through a flange.
The other technical scheme of the invention is as follows: a test method of the mechanism testing machine for the impact type mechanism sand comprises the following steps: (1) one end of a pull rope is connected to the movable baffle, the other end of the pull rope is connected to the rotary table, and the pull rope pulls the movable baffle inwards to enable the movable baffle to lean against the fixed baffle; (2) placing the sand and stone between the movable baffle and the fixed baffle on the turntable; (3) the rotating disc is controlled to rotate to drive the sandstone raw materials on the rotating disc to accelerate along with the rotation; (4) when the turntable reaches a set linear speed, the push-pull rod of the push-pull electromagnet extends to enable the cutter to cut off the pull rope, the movable baffle swings outwards quickly and opens, and meanwhile, the sandstone raw material flies out at a high speed to collide with the impact plate; (5) and observing the crushing condition of the sandstone raw material.
Compared with the prior art, the invention has the following beneficial effects: the impact type mechanism testing machine for machine-made sand has the advantages of reasonable design, convenience in use, easiness in operation and strong practicability, can simulate the throwing and crushing conditions of the crushing process of the sand-stone raw material so as to more intuitively know the crushing process, and has certain practical significance for the research of the crushing process of the machine-made sand.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view showing the internal structure of a test chamber according to an embodiment of the present invention;
FIG. 3 is a front view of the internal construction of a test chamber according to an embodiment of the present invention;
FIG. 4 is a perspective view of FIG. 2 with the upper mounting plate omitted and a portion of the impingement plate;
fig. 5 is a schematic view of a stock stop mechanism in the embodiment of the invention;
the reference numbers in the figures illustrate: 100-test box, 110-box door, 200-rotary disc, 210-rotary shaft, 211-connecting sleeve, 220-limit screw, 300-impact plate, 310-clamping block, 311-screw rod, 400-stop mechanism, 410-fixed baffle, 420-movable baffle, 430-pull rope, 440-push-pull electromagnet, 441-connecting rod, 442-guide sleeve, 450-cutter, 500-upper fixed disc, 510-upper fixed rod, 600-lower fixed disc, 610-lower fixed rod, 700-driving motor, 800-control box and 900-sandstone raw material.
Detailed Description
As shown in fig. 1 to 5, a mechanism testing machine for impact type mechanism sand includes a test box 100, a turntable 200 for placing sand and stone raw materials is arranged in the test box 100, an impact plate 300 enclosing a circle is detachably mounted on the periphery of the turntable 200, and a material blocking mechanism 400 for controlling the sand and stone raw materials to fly out is arranged on the turntable 200; when rotating at a high speed through the carousel, the stock stop opens in the twinkling of an eye and goes out the high-speed departure of grit raw materials, bumps with the counterattack board, can simulate the grit raw materials and make the movement route and the broken chamber contact condition that the broken in-process was thrown by the impeller to can more audio-visual understanding broken process, can provide experimental data support for the selectivity breakage of broken chamber flow state and material. This testing machine can make throwing of grit raw materials fly more convenient going on, easily operation, convenient to use, and the practicality is strong, and qualitative research grit raw materials and the collision condition of impingement plate (stone are hit iron), have certain practical meaning to the research of mechanism's sand crushing process.
In this embodiment, the material blocking mechanism 400 includes a fixed baffle 410 and a movable baffle 420 for blocking machine-made sand in the middle, the fixed baffle 410 and the movable baffle 420 form a V-shaped structure with an opening facing the center of the turntable, the movable baffle 420 is hinged to the turntable 200, the movable baffle 420 is connected with one end of a pull rope 430, the other end of the pull rope 430 is connected to the turntable to limit the outward swing of the movable baffle, a torsion spring for pushing the movable baffle to swing outward is arranged at the hinged position of the movable baffle, and the movable baffle can swing outward quickly to open when the pull rope is cut by utilizing the centrifugal force generated by the torsion spring in cooperation with the high-speed rotation of the turntable; also comprises a cutting mechanism used for cutting the pull rope.
In this embodiment, the fixed baffle 410 is also hinged to the turntable and can swing relative to the turntable, and a limit screw which abuts against the fixed baffle to limit the outward swing of the fixed baffle is arranged on the outer side of the fixed baffle; the turntable is provided with a plurality of threaded holes which are used for connecting limiting screws and are arranged along the swinging direction of the fixed baffle; the stop screw is connected and can be in different angles with the fixed stop plate restriction on different screw holes, and then can adjust the departure angle of grit raw materials.
In this embodiment, the cutting mechanism includes a push-pull electromagnet 440, a cutting knife 450 is connected to a push-pull rod of the push-pull electromagnet, and the pull rope can be quickly cut off by touching the cutting knife 450 when the pull rope moves at a high speed along with the turntable by extending the push-pull rod of the push-pull electromagnet.
In this embodiment, can set up a plurality of stock stops on the carousel in order to test many batches of grit raw materials simultaneously to improve the accuracy of experimental result, a cutting mechanism can be shared to a plurality of stock stops.
In this embodiment, an upper fixed tray 500 and a lower fixed tray 600 are fixedly installed in the test chamber 100, and the impact plate 300 is located between the upper and lower fixed trays; the upper end and the lower end of the impact plate 300 are respectively provided with a clamping block 310 for clamping the end part of the impact plate, the upper side of the upper clamping block and the lower side of the lower clamping block are fixedly connected with a screw 311 respectively penetrating through the upper fixing disc and the lower fixing disc, and the upper fixing disc and the lower fixing disc are provided with long holes for the screw to penetrate through and are arranged along the radial direction; the sandstone raw material can be put into by detaching part of the impact plate, the radial position and the angle of the impact plate can be adjusted by adjusting the position of the screw rod in the long hole and the angle of the clamping block, and the clamping block can be fixed by the nut on the locking screw rod after the adjustment is finished, so that the impact plate is fixed.
In this embodiment, the push-pull electromagnet 440 is installed on the upper side of the upper fixed disk, the push-pull rod of the push-pull electromagnet 440 penetrates through the upper fixed disk and is connected with a connecting rod 441, the cutter 450 is fixedly connected to the lower end of the connecting rod, and a guide sleeve 442 in sliding fit with the connecting rod is sleeved outside the connecting rod and is fixedly connected to the lower side of the upper fixed disk.
In this embodiment, the test chamber 100 is surrounded by a plurality of chamber doors 110, one side of each chamber door 110 is hinged to the frame of the test chamber, and the other side is fixed to the frame of the test chamber by magnet attraction.
In this embodiment, the turntable 200 is mounted on the middle rotating shaft 210, the upper end of the rotating shaft 210 penetrates through the test chamber upwards and is in transmission connection with a main shaft of a driving motor 700 through a synchronous pulley and a synchronous belt, and the driving motor adopts a variable frequency motor to realize rotation speed adjustment; a abdicating hole for the rotating shaft to pass through is formed in the middle of the upper fixing disc and the lower fixing disc, and the upper end and the lower end of the rotating shaft are in rotating fit with the top of the test box and the top of the test box through bearings; the upper side of the test chamber is also provided with a control chamber 800.
In this embodiment, the overcoat has two rather than the selective coordination and lies in the adapter sleeve 211 of carousel upper and lower side respectively in the pivot, and flange fixed connection is passed through on the adapter sleeve upper end of carousel top on the upper fixed disk, and flange fixed connection is passed through on the adapter sleeve lower extreme of carousel below the lower fixed disk, and the upper fixed disk passes through last dead lever 510 to be connected in the proof box top, and the lower fixed disk passes through dead lever 610 to be connected in the proof box bottom.
A test method of the mechanism testing machine for the impact type mechanism sand comprises the following steps: (1) opening the door of the test chamber and eliminating part of the impact plate; then one end of a pull rope is connected to the movable baffle, the other end of the pull rope is connected to the rotary table, and the pull rope pulls the movable baffle inwards to enable the movable baffle to lean against the fixed baffle; (2) placing the sand and stone between the movable baffle and the fixed baffle on the turntable; (3) installing the impact plate and closing the box door; the rotating disc is controlled to rotate to drive the sandstone raw materials on the rotating disc to accelerate along with the rotation; (4) when the turntable reaches a set linear speed, the push-pull rod of the push-pull electromagnet extends to enable the cutter to cut off the pull rope, the movable baffle swings outwards quickly and opens, and meanwhile, the sandstone raw material flies out at a high speed to collide with the impact plate; (5) and opening the box door of the test box, canceling part of the impact plate, taking out the crushed sandstone raw material, and observing the crushing condition of the sandstone raw material.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a mechanism testing machine of impacted style mechanism sand which characterized in that: the device comprises a test box, wherein a rotary table used for placing gravel raw materials is arranged in the test box, an impact plate surrounding a circle is detachably mounted on the periphery of the rotary table, and a material blocking mechanism used for controlling the gravel raw materials to fly out is arranged on the rotary table.
2. The impact machine-made sand mechanistic testing machine of claim 1, characterized in that: the material blocking mechanism comprises a fixed baffle and a movable baffle which block the sandstone raw material in the middle, the fixed baffle and the movable baffle form a V-shaped structure with an opening facing the center of the turntable, the movable baffle is hinged on the turntable and is connected with one end of a pull rope, the other end of the pull rope is connected on the turntable to limit the outward swinging of the movable baffle, and a torsional spring which pushes the movable baffle to swing outward is arranged at the hinged position of the movable baffle; also comprises a cutting mechanism used for cutting the pull rope.
3. The impact machine-made sand mechanistic testing machine of claim 2, characterized in that: the cutting mechanism comprises a push-pull electromagnet, and a push-pull rod of the push-pull electromagnet is connected with a cutter.
4. The impact machine-made sand mechanistic testing machine of claim 2, characterized in that: the fixed baffle is also hinged on the turntable and can swing relative to the turntable, and a limit screw which is pressed against the fixed baffle to limit the outward swing of the fixed baffle is arranged on the outer side of the fixed baffle; the turntable is provided with a plurality of threaded holes which are used for connecting the limiting screws and are arranged along the swinging direction of the fixed baffle.
5. The impact machine-made sand mechanistic testing machine of claim 1, characterized in that: an upper fixed disc and a lower fixed disc which are positioned above and below the rotary disc are fixedly arranged in the test box, and the impact plate is positioned between the upper fixed disc and the lower fixed disc; the upper end and the lower end of the impact plate are respectively provided with a clamping block for clamping the end part of the impact plate, the upper side of the upper clamping block and the lower side of the lower clamping block are fixedly connected with screws which respectively penetrate through the upper fixing disc and the lower fixing disc, and the upper fixing disc and the lower fixing disc are provided with long holes which are used for the screws to penetrate through and are arranged along the radial direction.
6. The impact machine-made sand mechanistic testing machine of claim 1, characterized in that: the test chamber is surrounded by a plurality of chamber doors, one side of each chamber door is hinged to the frame of the test chamber, and the other side of each chamber door is fixed on the frame of the test chamber through magnet adsorption.
7. The impact machine-made sand mechanistic testing machine of claim 1, characterized in that: the turntable is arranged on a rotating shaft in the middle, the upper end of the rotating shaft penetrates out of the test box upwards and is in transmission connection with a main shaft of a driving motor through a synchronous belt pulley and a synchronous belt, a abdicating hole for the rotating shaft to penetrate through is formed in the middle of the upper fixing disc and the lower fixing disc, and the upper end and the lower end of the rotating shaft are in rotating fit with the top of the test box and the top of the test box through bearings; the upper side of the test box is also provided with a control box.
8. The impact machine-made sand mechanistic testing machine of claim 7, characterized in that: the outer sleeve of the rotating shaft is provided with two connecting sleeves which are selectively matched with the rotating shaft and are respectively positioned above and below the rotating disc, the upper end of the connecting sleeve above the rotating disc is fixedly connected onto the upper fixed disc through a flange, and the lower end of the connecting sleeve below the rotating disc is fixedly connected onto the lower fixed disc through a flange.
9. A method of testing the impact machine sand mechanism tester according to claim 3, wherein: the method comprises the following steps: (1) one end of a pull rope is connected to the movable baffle, the other end of the pull rope is connected to the rotary table, and the pull rope pulls the movable baffle inwards to enable the movable baffle to lean against the fixed baffle; (2) placing the sand and stone between the movable baffle and the fixed baffle on the turntable; (3) the rotating disc is controlled to rotate to drive the sandstone raw materials on the rotating disc to accelerate along with the rotation; (4) when the turntable reaches a set linear speed, the push-pull rod of the push-pull electromagnet extends to enable the cutter to cut off the pull rope, the movable baffle swings outwards quickly and opens, and meanwhile, the sandstone raw material flies out at a high speed to collide with the impact plate; (5) and observing the crushing condition of the sandstone raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110662.4A CN112916138B (en) | 2021-01-27 | 2021-01-27 | Mechanism testing machine and method for impact type machine-made sand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110662.4A CN112916138B (en) | 2021-01-27 | 2021-01-27 | Mechanism testing machine and method for impact type machine-made sand |
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| Publication Number | Publication Date |
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| CN112916138A true CN112916138A (en) | 2021-06-08 |
| CN112916138B CN112916138B (en) | 2022-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116786568A (en) * | 2023-08-28 | 2023-09-22 | 中国建筑第五工程局有限公司 | Earthwork construction solid waste resource utilization system |
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| US20090199625A1 (en) * | 2006-05-18 | 2009-08-13 | The University Of Queensland | Apparatus for Determining Breakage Properties of Particulate Material |
| CN104741171A (en) * | 2015-03-27 | 2015-07-01 | 浙江浙矿重工股份有限公司 | Rotor group on sand making machine |
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| CN112916138B (en) | 2022-07-08 |
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