CN102896275A - Used sand regeneration mechanism - Google Patents
Used sand regeneration mechanism Download PDFInfo
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- CN102896275A CN102896275A CN2012102552676A CN201210255267A CN102896275A CN 102896275 A CN102896275 A CN 102896275A CN 2012102552676 A CN2012102552676 A CN 2012102552676A CN 201210255267 A CN201210255267 A CN 201210255267A CN 102896275 A CN102896275 A CN 102896275A
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- millstone
- wearing plate
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Abstract
The invention relates to an used sand regeneration mechanism, which comprises an upper millstone and a lower millstone with up and down relative arrangement, one of the upper millstone and lower millstone can bear loading force and rotate relative to another millstone, an upper millstone surface is provided at the lower end of the upper millstone, a lower millstone surface positioned relative to the upper millstone surface and used for cooperating with the upper millstone surface for extruding and twisting the corresponding used sand particles, and an accommodation gap used for accommodating the corresponding used sand particles is provided between the upper millstone surface and the lower millstone surface. The invention provides the used sand regeneration mechanism with low use cost, and the used sand particles are difficult to be crushed during the regeneration of the used sand.
Description
Technical field
The present invention relates to the regenerating used mechanism of the regenerating used that produces for Foundry Production.
Background technology
In the Foundry Production industry, no matter be to adopt the clay-bonded sand casting or adopt the water-glass sand casting, the capital produces a large amount of antiquated sands, also claims old sand, and nearly all resin self-setting sand manufacturing enterprise all is used for phenolic sand molding and coremaking with the resin self-setting sand old sand after the mechanical friction mode is regenerated; Some Enterprises is removed the dead clay mambrane of part sand grain surface by impacting and rubbing clay old sand, and all or part of replacement fresh sand is used for clay-bonded sand; These processing modes are difficult to remove dead clay and the inert coating that sand grain surface coats, and the regeneration effect that reaches is limited, cause casting quality reduction, hydraulic performance decline.Most enterprises just abandon old sand later through several times reuse, again change fresh sand, cause environmental pollution and cost to improve.Along with the raising that casting quality is required, from the angle of economy and environmental protection, regenerating used has become indispensable part in the Foundry Production.
At present, the commonly used reclamation technique method of factory mainly is divided into three major types according to the difference of its equipment operation principle: dry reclamation, wet reclamation, thermal reclamation.Thermal reclamation is by roaster old sand to be heated to 850-900 ℃, to remove the renovation process of flammable residue on the old sand grain, thermal reclamation is good especially to the regeneration effect of organic binder bond sand, residual binding agent removes totally, the Heat stability is good of reclaimed sand can recover former size distribution, but cost is higher, energy consumption is larger, and its use is subject to certain restrictions.Wet reclamation is dissolving, scrubbing action and the mechanical agitation of utilizing water, makes the false breakage of particles in the old sand, and the residual adhensive membrane of sand grain surface dissolves, comes off or removes.The major advantage of wet reclamation is to some water-soluble old sand, good regeneration effect to be arranged, the reclaimed sand quality is good, can make facing sand and use, and the regeneration rate of old sand is high, its major defect is that complex process, floor space are larger, and cost is high, and the problem such as sewage disposal is arranged.But for fear of this difficult problem of regenerating used sewage disposal, the regenerating used multi-steering adopts dry reclamation at present.
That dry reclamation is divided into again is centrifugal, air-flowing type, oscillatory type, reverse-flow etc., the regeneration of centrifugal and air-flowing type is to utilize mechanical centrifugal power and compressed air stream that the old sand grain is accelerated to certain speed, relies between sand grains and hardware or rubbing action regeneration old sand that sand grains is mutual; Oscillatory type regeneration is under the effect of vibration force, the body of filling the old sand piece ceaselessly vibrates, thereby cause impact, friction between the sand lump, and impact, the friction of sand lump and vibrating body inwall, make sand lump breaking, old sand grain obtain regeneration, reverse-flow regeneration be by between the sand grains and the strong friction between sand grains and the member be used for the old sand of regenerating.Above-mentioned these are centrifugal, the operation principle of air-flowing type, oscillatory type and reverse-flow dry reclamation is by making the old sand capsomere produce higher speed, then between old sand particle and old sand particle and between old sand particle and relevant device severe impact, collision occur, thereby make the old sand grain obtain regeneration, so the larger speed of old sand particle is a necessary condition of regenerating used.The demoulding power that these process of regenerating provide is limited, can not remove the residual film on the old sand grain fully, and the quality of reclaimed sand is not too high; Owing to need to provide higher speed for the old sand housing; this just needs equipment that higher intensity is arranged; increased the cost of equipment; high-speed little old sand is quite serious to the wearing and tearing of equipment; the replacement frequency of equipment is higher; also increased the cost of equipment; simultaneously; because the old sand particle is frangible; old sand particle at a high speed mutually impacts, collides, and old sand Particle Breakage phenomenon often can occur, along with the raising of old sand particle demolding rate; required speed, impulsive force and the frictional force of old sand particle is larger, and the Fragmentation Phenomena of the wearing and tearing of element of installation and old sand particle is more serious.
Summary of the invention
The not breakable regenerating used of old sand particle mechanism when the object of the present invention is to provide the lower and regenerating used of a kind of use cost.
In order to address the above problem, technical scheme of the present invention is:
A kind of regenerating used mechanism, comprise the upper millstone and the lower millstone that are oppositely arranged up and down, described upper millstone can bear loading force and relative another mill revolution with a mill in the lower millstone, the lower end of upper millstone is provided with the upper millstone flour milling, the upper end of lower millstone be provided with relative with upper millstone flour milling position and be used for cooperating with the upper millstone flour milling and push, the lower millstone flour milling of the corresponding old sand particle of rubbing, be provided be used to the gap that holds that holds corresponding old sand particle between described upper millstone flour milling and the lower millstone flour milling.
The middle part of described upper millstone is provided with to be run through its upper and lower end face and is used for holding the charging hole that old sand is added in the gap to described.
Described lower millstone can bear loading force and relatively upper millstone revolution, and described charging hole has two and being distributed on the described upper millstone with respect to the axis centre symmetry of described upper millstone.
The lower end of described upper millstone is provided with the upper millstone roll flute that screw involute shape distributes, and described upper millstone roll flute has the lower surface of arc, and the lower surface of described upper millstone roll flute has consisted of described upper millstone flour milling.
Described upper millstone comprises the upper millstone body and is fixedly arranged on the upper millstone wearing plate of described upper millstone body lower end that described upper millstone roll flute and described upper millstone wearing plate are wholely set.
Described upper millstone wearing plate is spliced by the fan-shaped upper wearing plate of polylith, and each fan-shaped upper wearing plate is fixedly installed on the described upper millstone body by corresponding upper installing mechanism correspondence respectively.
Described upper installing mechanism comprise the upper positioning key that is arranged on the described upper millstone body and be arranged on each fan-shaped upper wearing plate with corresponding on the upper positioning spline that cooperates of positioning key location, upper installing mechanism also comprises the screwing that connects described upper millstone body and corresponding fan-shaped upper wearing plate.
The upper end of described lower millstone is provided with the lower millstone roll flute that screw involute shape distributes, and described lower millstone roll flute has the upper surface of arc, and the upper surface of described lower millstone roll flute has consisted of described lower millstone flour milling.
Described lower millstone comprises the lower millstone body and is fixedly arranged on the lower millstone wearing plate of described lower millstone body upper end that described lower millstone roll flute and described lower millstone wearing plate are wholely set.
Described lower millstone wearing plate is spliced by the fan-shaped lower wearing plate of polylith, and each fan-shaped lower wearing plate is fixedly installed on the described lower millstone body by corresponding lower installing mechanism correspondence respectively.
Beneficial effect of the present invention is: during use, corresponding old sand is positioned over, holding in the gap between the lower millstone, on, the relative gyration of lower millstone, upper, in the gyration process of lower millstone, between old sand particle and the old sand particle, old sand particle and upper, push between the abradant surface of lower millstone, friction and grinding, because the characteristic that the old sand particle is wear-resisting and upper, the pressurization of lower millstone, the rubbing effect, so that the Duo film of old sand particle surface is easy to remove, do not need in the removal process of inert coating, larger relative speed of gyration is arranged between the lower millstone, this has just reduced the requirement of regenerating used to equipment, thereby has reduced the cost of equipment; Between old sand particle and the old sand particle and between old sand particle and the upper and lower mill violent impact, collision can not occur, the old sand particle is difficult for broken, and the old sand particle can be very not serious to the wearing and tearing of upper and lower mill, thereby reduced the replacement frequency of equipment consumable accessory yet.
Description of drawings
Fig. 1 is the use state diagram of the embodiment of the invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is that the B-B of Fig. 1 is to cutaway view;
Fig. 4 is the scheme of installation of upper millstone wearing plate among Fig. 1;
Fig. 5 is the scheme of installation of lower millstone wearing plate among Fig. 1;
Fig. 6 is that D-D among Fig. 2 is to profile;
Fig. 7 is the structural representation of single fan-shaped lower wearing plate;
Fig. 8 is that the A-A of Fig. 7 is to cutaway view.
The specific embodiment
The embodiment of a kind of regenerating used mechanism is shown in Fig. 1 ~ 8: comprise the upper millstone 15 and the lower millstone 14 that are oppositely arranged up and down, lower millstone 14 can bear loading force and relatively upper millstone 15 revolutions, and namely lower millstone 14 is provided with the torque input end for the moment of torsion input.Upper millstone 15 comprises upper millstone body 30 and is installed with the upper millstone wearing plate 32 of being made by wear-resisting alloy steel of upper millstone body 30 lower ends, upper millstone wearing plate 32 is spliced by ten block-shaped identical fan-shaped upper wearing plates 17, each fan-shaped upper wearing plate 17 is fixedly linked by upper mounting structure and the upper millstone body 30 of correspondence respectively, upper mounting structure comprises and is arranged on each the upper positioning spline on the fan-shaped upper wearing plate and is arranged at upper positioning key 18 corresponding with positioning spline position on each on the upper millstone body, upper mounting structure also comprises the screwing 19 that connects upper millstone body 30 and each fan-shaped upper wearing plate, the equal one in the lower end of each fan-shaped upper wearing plate 17 is provided with upper millstone roll flute 33, after wearing plate 17 is bolted together on all are fan-shaped, the outer arc line of all fan-shaped upper wearing plates 17 is a full circle, upper millstone roll flute 33 on all fan-shaped upper wearing plates 17 is continuous spiral involute shape and distributes, upper millstone roll flute 33 has the lower surface of arc, and upper millstone wearing plate 32 consists of maintenance and the replacing that can make things convenient for upper millstone wearing plate 32 each several parts by a plurality of fan-shaped upper wearing plates 17.Lower millstone 14 comprises lower millstone body 36 and the lower millstone wearing plate 35 of being made by the antifriction alloy Steel material, lower millstone wearing plate 35 is spliced by ten block-shaped identical fan-shaped lower wearing plates 40, each fan-shaped lower wearing plate 40 is fixedly linked by lower mounting structure and the lower millstone body 36 of correspondence respectively, lower mounting structure comprises the lower positioning spline 50 that is arranged on the fan-shaped upper wearing plate of each time and is arranged at lower positioning key 38 corresponding with each time positioning spline position on the lower millstone body, lower mounting structure also comprises the lower screw 39 that connects lower millstone body 36 and each fan-shaped lower wearing plate, the equal one in the lower end of each fan-shaped lower wearing plate 40 is provided with lower millstone roll flute 34, after all fan-shaped lower wearing plates 40 are bolted together, the outer arc line of all fan-shaped lower wearing plates 40 is a full circle, lower millstone roll flute 34 on all fan-shaped lower wearing plates 40 is continuous spiral involute shape and distributes, and lower millstone roll flute 34 has the upper surface of arc.The lower surface of all upper millstone roll flutes 33 has consisted of the upper millstone flour milling that is used for extruding, grinds corresponding old sand, the upper surface of all lower millstone roll flutes 34 has consisted of and is oppositely arranged with the upper millstone flour milling and is used for extruding, grinds the lower millstone flour milling of corresponding old sand, is provided be used to what hold corresponding old sand particle to hold gap 37 between upper and lower mill flour milling.The middle part of upper millstone 15 is provided with two and runs through charging hole 20 its upper and lower end face and that be used for corresponding old sand charging, two charging holes 20 are symmetrical with respect to the axis centre of described upper millstone, the lower end of two charging holes 20 with hold gap 37 and be communicated with, the upper end of two charging holes 20 is communicated with feeding cylinder 12, and feeding cylinder 12 slides and is plugged in the charging hole 20.
During use this regenerating used mechanism is installed on the (sand) reclaimer, (sand) reclaimer comprises frame, be provided with master collet 5 by frame tie-beam 7 on the frame, be rotatably equipped with the main shaft 6 that pivot center extends along the vertical direction by rolling bearing and thrust bearing on the inner hole wall of master collet 5, the upper end of main shaft 6 is fixed with lower millstone 14 by screw, the lower end of main shaft 6 is fixed with drive pulley 31, one side of frame is provided with and drives the driving mechanism that lower millstone 14 rotates, driving mechanism comprises drive motors 1, and the clutch end of drive motors 1 is in transmission connection by the drive pulley 31 of driving-belt 2 with main shaft 6 lower ends.The top of lower millstone 14 is provided with upper millstone 15, upper millstone 15 is by exportable governor motion 13 moving up and down the mounting on the back timber 11 of frame of adjusting up and down action, governor motion 13 comprises that welding is fixed on adapter sleeve 24 on the back timber 11 and upper end and is arranged in connecting rod 13 in the adapter sleeve 24, be threaded in the top of adapter sleeve 24 on the connecting rod 13 and connecting rod 13 moved up and down the adjusting nut 23 of adjustment, be provided with assemblage gap between the inner hole wall of the outer peripheral face of connecting rod 13 and adapter sleeve 24, in assemblage gap, be set with Adjusting bolt Adjusting screw 25 on the connecting rod 13, the outer peripheral face of Adjusting bolt Adjusting screw 25 is threaded with the inner hole wall of adapter sleeve 24, and thin nut 22 has been threaded in the below of adapter sleeve 24 on the outer peripheral face of Adjusting bolt Adjusting screw 25.The upper end welding of upper millstone 15 is fixed with connecting rod hold-down nut 26, the lower end of connecting rod 13 is threaded with connecting rod hold-down nut 26, be top-loaded with pre-compressed spring 21 on the connecting rod 13 between Adjusting bolt Adjusting screw 25 and connecting rod hold-down nut 26, Adjusting bolt Adjusting screw 25 and pre-compressed spring 21 have consisted of forces described upper millstone towards the elasticity pre-tightening mechanism of described lower millstone motion.(sand) reclaimer also comprises the annular sand hopper 8 that is used for collecting corresponding old sand after upper and lower mill is to mill that is arranged at 14 lower millstones below, the upper end of annular sand hopper 8 is fixedly connected with upper millstone body 30, the upper end of annular sand hopper 8 is equipped with dust cover 10, offers dedusting hole 9 on the dust cover 10.The frame structure of whole frame for being made of column 4 and crossbeam 16 adopts this structure to reduce the weight of frame when guaranteeing frame strength, and be at the scene during installation frame, as long as column 4 bottoms and embedded board 3 are welded, easy for installation simultaneously.In other (sand) reclaimer, drive motors can also be replaced by hydraulic motor; Governor motion can also be conditioned cylinder and replace, and governor motion can not established yet certainly, and the pre-compressed spring in the elasticity pre-tightening mechanism also can immediate roof be loaded between frame and the upper platen; Pressing disc can also maintain static, and this moment, drive motors can rotate by driving upper platen, and the transmission of this moment can be by the external toothing transmission.
During use, the old sand particle enters holding in the gap 37 between the upper and lower platen through feeding cylinder 12, charging hole 20, drive motors 1 drives pressing disc 14 and rotates, the upper and lower mill roll flute of upper and lower platen pushes, exchanges views the old sand particle, connecting rod 13 and adjusting nut 23 can be adjusted the gap between the upper and lower platen, thereby make and hold the gap and adapt to different big or small old sand particles, the extruding force that pre-compressed spring 21 and Adjusting bolt Adjusting screw 25 are regulated upper platen 15, thus guarantee grinding effect to the old sand particle.In the relative turning course of upper and lower platen, the old sand particle can be transported to the edge by the middle part that holds the gap until fall into annular sand hopper by the spiral involute track under centrifugal force and Action of Gravity Field, and dust is then discharged by the dedusting hole.This (sand) reclaimer compact conformation, rationally grinds the gap, pressure is adjustable, strong adaptability, and the sand grains percentage of damage is low, and grinding effect is good, pollutes little, use value height, and can realize continuous continual production.
In other embodiments of the invention: upper and lower mill wearing plate all can be that an integrally-built wearing plate consists of, and the roll flute that is arranged on the corresponding wearing plate also can be integrally formed on the corresponding mill body, and the wearing layer that high-abrasive material is made can be connected at the outer surface of roll flute this moment; Certainly the roll flute that arranges on each mill wearing plate can not have yet, and it be a little bit poorer just like this mill of old sand being rubbed with the hands effect, and the milling time of old sand is needed increase; The number of charging hole can also be one; Adapter sleeve can also be integrally formed on the back timber; The distribution shape of upper and lower mill roll flute can also be to extraradial radial by corresponding mill center.
Claims (10)
1. regenerating used mechanism, it is characterized in that: comprise the upper millstone and the lower millstone that are oppositely arranged up and down, described upper millstone can bear loading force and relative another mill revolution with a mill in the lower millstone, the lower end of upper millstone is provided with the upper millstone flour milling, the upper end of lower millstone be provided with relative with upper millstone flour milling position and be used for cooperating with the upper millstone flour milling and push, the lower millstone flour milling of the corresponding old sand particle of rubbing, be provided be used to the gap that holds that holds corresponding old sand particle between described upper millstone flour milling and the lower millstone flour milling.
2. regenerating used according to claim 1 mechanism is characterized in that: the middle part of described upper millstone is provided with to be run through its upper and lower end face and is used for holding the charging hole that old sand is added in the gap to described.
3. regenerating used according to claim 2 mechanism, it is characterized in that: described lower millstone can bear loading force and relatively upper millstone revolution, and described charging hole has two and being distributed on the described upper millstone with respect to the axis centre symmetry of described upper millstone.
4. the described regenerating used of any one mechanism according to claim 1 ~ 3, it is characterized in that: the lower end of described upper millstone is provided with the upper millstone roll flute that screw involute shape distributes, described upper millstone roll flute has the lower surface of arc, and the lower surface of described upper millstone roll flute has consisted of described upper millstone flour milling.
5. regenerating used according to claim 4 mechanism, it is characterized in that: described upper millstone comprises the upper millstone body and is fixedly arranged on the upper millstone wearing plate of described upper millstone body lower end that described upper millstone roll flute and described upper millstone wearing plate are wholely set.
6. regenerating used according to claim 5 mechanism, it is characterized in that: described upper millstone wearing plate is spliced by the fan-shaped upper wearing plate of polylith, and each fan-shaped upper wearing plate is fixedly installed on the described upper millstone body by corresponding upper installing mechanism correspondence respectively.
7. regenerating used according to claim 6 mechanism, it is characterized in that: described upper installing mechanism comprise the upper positioning key that is arranged on the described upper millstone body and be arranged on each fan-shaped upper wearing plate with corresponding on the upper positioning spline that cooperates of positioning key location, upper installing mechanism also comprises the screwing that connects described upper millstone body and corresponding fan-shaped upper wearing plate.
8. regenerating used according to claim 4 mechanism, it is characterized in that: the upper end of described lower millstone is provided with the lower millstone roll flute that screw involute shape distributes, described lower millstone roll flute has the upper surface of arc, and the upper surface of described lower millstone roll flute has consisted of described lower millstone flour milling.
9. regenerating used according to claim 8 mechanism, it is characterized in that: described lower millstone comprises the lower millstone body and is fixedly arranged on the lower millstone wearing plate of described lower millstone body upper end that described lower millstone roll flute and described lower millstone wearing plate are wholely set.
10. regenerating used according to claim 9 mechanism, it is characterized in that: described lower millstone wearing plate is spliced by the fan-shaped lower wearing plate of polylith, and each fan-shaped lower wearing plate is fixedly installed on the described lower millstone body by corresponding lower installing mechanism correspondence respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255267.6A CN102896275B (en) | 2012-07-23 | 2012-07-23 | A kind of regenerating used mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210255267.6A CN102896275B (en) | 2012-07-23 | 2012-07-23 | A kind of regenerating used mechanism |
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| Publication Number | Publication Date |
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| CN102896275A true CN102896275A (en) | 2013-01-30 |
| CN102896275B CN102896275B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210255267.6A Active CN102896275B (en) | 2012-07-23 | 2012-07-23 | A kind of regenerating used mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363998A (en) * | 2015-12-10 | 2016-03-02 | 中国汽车工业工程有限公司 | Composite used sand regenerator |
| CN105772627A (en) * | 2016-03-23 | 2016-07-20 | 侯松涛 | Old sand regenerator |
| WO2018001250A1 (en) * | 2016-06-27 | 2018-01-04 | 济南圣泉集团股份有限公司 | Rubbing type reclamation machine |
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| JPH06154942A (en) * | 1992-07-24 | 1994-06-03 | Dietmar Boenisch | Method, regenerating machine and multistage regenerating device for regenerating cast sand |
| JPH1085895A (en) * | 1996-09-18 | 1998-04-07 | Howa Chuki Kk | Molding sand regenerating machine |
| CN101342505A (en) * | 2008-08-07 | 2009-01-14 | 西安建筑科技大学 | Grinding disc of high-voltage panel type grinding equipment |
| CN201823883U (en) * | 2009-12-28 | 2011-05-11 | 昆明理工大学 | Eccentric wheel type abrasive wheel machine for sand reclamation |
| CN202667545U (en) * | 2012-07-23 | 2013-01-16 | 机械工业第四设计研究院 | Sand reclaiming mechanism |
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Patent Citations (6)
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| CN1030374A (en) * | 1987-07-03 | 1989-01-18 | 久保田铁工株式会社 | Casting sand recycling device |
| JPH06154942A (en) * | 1992-07-24 | 1994-06-03 | Dietmar Boenisch | Method, regenerating machine and multistage regenerating device for regenerating cast sand |
| JPH1085895A (en) * | 1996-09-18 | 1998-04-07 | Howa Chuki Kk | Molding sand regenerating machine |
| CN101342505A (en) * | 2008-08-07 | 2009-01-14 | 西安建筑科技大学 | Grinding disc of high-voltage panel type grinding equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363998A (en) * | 2015-12-10 | 2016-03-02 | 中国汽车工业工程有限公司 | Composite used sand regenerator |
| CN105363998B (en) * | 2015-12-10 | 2017-08-22 | 中国汽车工业工程有限公司 | A kind of compound reclaiming machine for waste sand |
| CN105772627A (en) * | 2016-03-23 | 2016-07-20 | 侯松涛 | Old sand regenerator |
| CN105772627B (en) * | 2016-03-23 | 2017-11-28 | 侯松涛 | A kind of reclaiming machine for waste sand |
| WO2018001250A1 (en) * | 2016-06-27 | 2018-01-04 | 济南圣泉集团股份有限公司 | Rubbing type reclamation machine |
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