CN111437977A - Molding sand recycling and smashing device for casting - Google Patents
Molding sand recycling and smashing device for casting Download PDFInfo
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- CN111437977A CN111437977A CN202010349761.3A CN202010349761A CN111437977A CN 111437977 A CN111437977 A CN 111437977A CN 202010349761 A CN202010349761 A CN 202010349761A CN 111437977 A CN111437977 A CN 111437977A
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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
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
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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
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/44—Cooling or heating rollers or bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
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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
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a molding sand recycling and crushing device for casting, which comprises a machine body, wherein a feed hopper is arranged at the top of the machine body, a primary crushing cavity, a secondary crushing cavity and a crushing cavity which are communicated are sequentially arranged in the machine body from top to bottom, a pair of primary crushing rollers in transmission connection are arranged in the primary crushing cavity, a pair of secondary crushing rollers in transmission connection are arranged in the secondary crushing cavity, a crushing cutter shaft is arranged in the crushing cavity, a discharge hole is formed in the bottom of the crushing cavity, and a filter screen is arranged at the discharge hole; the machine body is provided with a water injection cooling mechanism, and the water injection cooling mechanism comprises mounting bases arranged on two sides of the machine body; the bottom of the water tank is connected with a main water pipe, and a plurality of branch water pipes are arranged on the main water pipe. The water injection cooling mechanism carries out water cooling heat dissipation, so that heat accumulation of the device in long-time use is reduced, the service life of equipment is greatly prolonged, and the cost is saved; in addition, the invention also effectively avoids the generation of toxic gas due to higher temperature.
Description
Technical Field
The invention relates to the technical field of medium casting, in particular to a molding sand recycling and crushing device for casting.
Background
Casting is a method of casting liquid metal into a casting cavity with a shape adapted to a part, and cooling and solidifying the liquid metal to obtain the part or a blank, wherein most of the cast substances are the metal which is originally in a solid state and is heated to a liquid state. The sand casting refers to a casting method for producing castings in sand molds, and in the casting industry, the sand casting is a common casting method, in the sand casting, after the castings are demoulded, molding sand needs to be crushed again so as to be reused, and when an existing crusher works, large raw materials are crushed into fragments by using methods such as extrusion, splitting, bending, impacting, rolling and the like. The existing crusher has large working power, high working friction strength, large generated heat, easy aging of elements, easy occurrence of machine failure due to long-time working, rapid volatilization of lubricating oil in a bearing, easy increase of friction between the bearing and a cutter shaft or a crushing shaft and influence on service life. In addition, the temperature of the cutter shaft or the crushing shaft is high, so that the sand mold can easily generate toxic gas.
Disclosure of Invention
The invention aims to provide a molding sand recycling and crushing device for casting. According to the invention, water-cooling heat dissipation is carried out through the water injection cooling mechanism, so that heat accumulation of the device in long-time use is reduced, the service life of the equipment is greatly prolonged, and the cost is saved; in addition, the invention also effectively avoids the generation of toxic gas due to higher temperature.
The technical scheme of the invention is as follows: a molding sand recycling and crushing device for casting comprises a machine body, wherein a feeding hopper is arranged at the top of the machine body, a primary crushing cavity, a secondary crushing cavity and a crushing cavity which are communicated are sequentially arranged in the machine body from top to bottom, a pair of primary crushing rollers in transmission connection is arranged in the primary crushing cavity, a pair of secondary crushing rollers in transmission connection is arranged in the secondary crushing cavity, a crushing cutter shaft is arranged in the crushing cavity, a discharge hole is formed in the bottom of the crushing cavity, and a filter screen is arranged at the discharge hole; the machine body is provided with a water injection cooling mechanism, the water injection cooling mechanism comprises mounting bases arranged on two sides of the machine body, each mounting base is respectively provided with a shock absorption frame and a water tank, a first cooling cavity channel is arranged in the first-stage crushing roller, a second cooling cavity channel is arranged in the second-stage crushing roller, and a third cooling cavity channel is arranged on the crushing cutter shaft; the bottom of the water tank is connected with a main water pipe, a plurality of branch water pipes are arranged on the main water pipe, the branch water pipes are respectively connected with the shaft end of the primary crushing roller, the shaft end of the secondary crushing roller and the shaft end of the crushing cutter shaft through rotating connecting pipes, and the rotating connecting pipes are fixed on the shock absorption frame; the top of one of the water tanks is provided with a positioning frame, the positioning frame is provided with a telescopic cylinder which is vertically downward and extends into the water tank, and the telescopic end of the telescopic cylinder is provided with a piston push block which slides along the water tank; and a heat dissipation mechanism is arranged in the other water tank.
In the molding sand recovery and crushing device for casting, the rubber layer is arranged on the outer side of the piston push block.
Among the aforementioned reducing mechanism is retrieved to molding sand for casting, rotate the connecting pipe and include the registration arm, be equipped with the piston chamber in the registration arm, the both ends in piston chamber are equipped with the swivel piston piece respectively, and the dorsal part of every swivel piston piece is connected with the butt joint pipe, be equipped with on the swivel piston piece with the inlet opening that communicates to the butt joint pipe, be equipped with the first O type sealing washer of multichannel between swivel piston piece and the piston chamber, the both ends of registration arm are equipped with end cover, supply the through-hole that the butt joint pipe passed on the end cover, one of them to butt joint pipe and a water piping connection, another butt joint pipe and one-level crushing roller's the axle head, the axle head of second grade crushing roller and the axle end connection of smashing.
In the molding sand recovery and crushing device for casting, a second O-ring is arranged on the inner wall of the through hole on the sealing end cover.
In the molding sand recovery and pulverization device for casting, a U-shaped seal ring is provided at the front end of the rotary piston block.
Among the reducing mechanism is retrieved to molding sand for casting, the shock attenuation frame is including setting up vibration damping mount on the mounting base, vibration damping mount's top is equipped with vertical ascending first grudging post and second grudging post, the axle head of one-level crushing roller, second grade crushing roller and the axle head of smashing the arbor all are connected with first grudging post through the bearing, rotate the connecting pipe and install on the second grudging post and with the axle head of one-level crushing roller, the axle head of second grade crushing roller and the axle head one-to-one of smashing the arbor.
In the molding sand recovery and pulverization apparatus for casting, a plurality of reinforcing rods are provided between the first and second vertical frames.
In the molding sand recycling and crushing device for casting, the heat dissipation mechanism comprises a plurality of vertically arranged heat dissipation fins arranged on the outer side wall of the water tank, and a plurality of vertically arranged heat collection grooves which are recessed inwards are formed in the inner side wall of the water tank.
In the molding sand recycling and crushing device for casting, a top cover is arranged at the top of the water tank, and a plurality of vent holes are formed in the top cover.
In the molding sand recycling and crushing device for casting, the first cooling cavity channel, the second cooling cavity channel and the third cooling cavity channel are spirally arranged.
Compared with the prior art, the invention has the following advantages:
1. the invention carries out multi-stage crushing and crushing on the solid through the first-stage crushing roller, the second-stage crushing roller and the crushing cutter shaft, the crushing efficiency is improved, firstly, the primary crushing roller pre-crushes the solid molding sand to crush the solid molding sand into molding sand solid with larger specification, then the molding sand is further crushed under the action of a secondary crushing roller to crush the molding sand solid with larger solid into the molding sand solid with smaller specification, and finally the molding sand is crushed under a crushing cutter shaft, thereby effectively improving the crushing efficiency, in addition, the water injection and cooling mechanism can respectively inject water into the primary crushing roller, the secondary crushing roller and the crushing cutter shaft to dissipate heat, thereby effectively avoiding the process of crushing, crushing and recycling the solid molding sand, because the high-strength friction is generated between the primary crushing roller, the secondary crushing roller and the crushing cutter shaft and the solid sand mold, a large amount of heat accumulation is generated. When the water injection cooling mechanism works, the flexible push block is periodically pushed downwards along the water tank by the flexible cylinder, the flexible push block pushes the water in the water tank downwards into the first cooling cavity channel in the first-stage crushing roller, the second cooling cavity channel in the second-stage crushing roller and the third cooling cavity channel in the crushing cutter shaft through the main water pipe respectively to perform water-cooling heat dissipation on the first-stage crushing roller, the second-stage crushing roller and the crushing cutter shaft, hot water generated by heat dissipation flows into the other water tank, the hot water generated by water cooling is dissipated by the heat dissipation mechanism in the water tank so as to be recycled, when the flexible cylinder contracts, the flexible cylinder drives the pushing movement to move upwards along the water tank, and the water in the other water tank flows back to the first cooling cavity channel in the first-stage crushing roller, the second cooling cavity channel in the second-stage crushing roller and the third cooling cavity channel in the crushing cutter shaft again, the water cooling heat dissipation is carried out on the primary crushing roller, the secondary crushing roller and the crushing cutter shaft in the periodic telescopic motion of the telescopic cylinder, and the water cooling heat dissipation device has the characteristic of good water cooling heat dissipation effect. According to the invention, the water injection cooling mechanism is used for respectively carrying out water cooling heat dissipation on the primary crushing roller, the secondary crushing roller and the crushing cutter shaft, so that the heat accumulation of the device in long-time use is reduced, the service life of the equipment is greatly prolonged, and the cost is saved; in addition, the invention also effectively avoids the generation of toxic gas due to higher temperature.
2. The rotary connecting pipe comprises a positioning pipe, a piston cavity is arranged in the positioning pipe, rotary piston blocks are respectively arranged at two ends of the piston cavity, the back side of each rotary piston block is connected with a butt joint pipe, a water inlet hole communicated with the butt joint pipe is formed in each rotary piston block, a plurality of first O-shaped sealing rings are arranged between each rotary piston block and the piston cavity, sealing end covers are arranged at two ends of the positioning pipe, through holes for the butt joint pipes to penetrate through are formed in the sealing end covers, one of the butt joint pipes is connected with a branch water pipe, and the other butt joint pipe is connected with the shaft end of a primary crushing roller, the shaft end of a secondary crushing roller and the shaft end of a crushing cutter shaft; at first fix the registration arm on the shock attenuation frame, install the rotating piston piece that stretches into the piston intracavity in the registration arm on the butt joint pipe, make the rotating piston piece on the butt joint pipe can remove along the piston chamber, and then can rotate and stretch out and draw back the butt joint pipe, the accessible rotates the axle head of connecting pipe and one-level crushing roller, the axle head of second grade crushing roller and the axle head of smashing the arbor are connected, effectively avoided at one-level crushing roller, the water pipe takes place the winding phenomenon of knoing when second grade crushing roller rotates with smashing the arbor, the propulsion of the installation butt joint of being convenient for has simultaneously, better leakproofness has, the phenomenon of leaking has effectively been avoided taking place.
3. The damping frame comprises a damping base arranged on an installation base, a first vertical frame and a second vertical frame which are vertically upward are arranged at the top of the damping base, the shaft end of the first-stage crushing roller, the shaft end of the second-stage crushing roller and the shaft end of the crushing cutter shaft are connected with the first vertical frame through bearings, the rotating connecting pipe is arranged on the second vertical frame and is in one-to-one correspondence with the shaft end of the first-stage crushing roller, the shaft end of the second-stage crushing roller and the shaft end of the crushing cutter shaft, the supporting and damping effects are achieved, and meanwhile, the butt joint of the rotating connecting pipe and the shaft end of the first-stage crushing roller, the shaft end of the second-stage crushing roller and the shaft.
4. The heat dissipation mechanism comprises a plurality of vertically arranged heat dissipation fins arranged on the outer side wall of the water tank, and a plurality of vertically arranged heat collection grooves which are recessed inwards are arranged on the inner side wall of the water tank, so that the heat dissipation efficiency of a water body in the water tank is improved, and the water body can be conveniently cooled circularly.
5. According to the invention, the top cover is arranged at the top of the water tank, and the plurality of vent holes are arranged on the top cover, so that when the water injection cooling mechanism works, the telescopic cylinder performs periodic telescopic motion along the movable push block of the water tank to cause the change of the volumes of water bodies in the two water tanks, air enters the water tank from the external environment at a higher jet speed, the water bodies in the water tanks are convenient to dissipate heat and cool, the natural heat dissipation efficiency of the water bodies is effectively improved, then the water bodies in the water tanks push the air in the water tanks to the external environment under the action of the periodic telescopic motion of the telescopic cylinder, the water tanks perform periodic air suction and air discharge on the external environment along with the periodic telescopic motion of the telescopic cylinder, and the natural heat dissipation efficiency of the water bodies in the water tanks is effectively improved.
6. According to the invention, the first cooling cavity channel, the second cooling cavity channel and the third cooling cavity channel are spirally arranged, so that the heat exchange area is effectively increased.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a shock-absorbing mount;
FIG. 3 is a schematic view of a partial structure of the present invention;
FIG. 4 is a schematic view of a rotary joint pipe;
FIG. 5 is a schematic structural view of a second O-ring seal;
FIG. 6 is a schematic structural diagram of a heat dissipation mechanism;
fig. 7 is a schematic structural view of the top cover.
1. A body; 2. a feed hopper; 3. a primary crushing cavity; 4. a secondary crushing cavity; 5. a grinding chamber; 6. a primary crushing roller; 7. a secondary crushing roller; 8. a crushing cutter shaft; 9. a filter screen; 10. a water injection cooling mechanism; 11. mounting a base; 12. a shock-absorbing mount; 13. a water tank; 14. a first cooling channel; 15. a second cooling channel; 16. a third cooling channel; 17. a main water pipe; 18. a branch water pipe; 19. rotating the connecting pipe; 20. a positioning frame; 21. a telescopic cylinder; 22. a piston push block; 23. a heat dissipation mechanism; 24. a rubber layer; 25. a positioning tube; 26. a piston cavity; 27. a rotating piston block; 28. butt-joint pipes; 29. a water inlet hole; 30. a first O-ring seal; 31. sealing the end cap; 32. a through hole; 33. a second O-ring seal; 34. a U-shaped sealing ring; 35. a damping mount; 36. a first stand; 37. a second stand; 38. a reinforcing bar; 39. a heat dissipating fin; 40. a heat collection groove; 41. a top cover; 42. and (4) a vent hole.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example (b): a molding sand recycling and crushing device for casting is shown in figures 1-7 and comprises a machine body 1, wherein a feed hopper 2 is arranged at the top of the machine body 1, a primary crushing cavity 3, a secondary crushing cavity 4 and a crushing cavity 5 which are communicated with each other are sequentially arranged inside the machine body 1 from top to bottom, a pair of primary crushing rollers 6 in transmission connection are arranged in the primary crushing cavity 3, a pair of secondary crushing rollers 7 in transmission connection are arranged in the secondary crushing cavity 4, a crushing cutter shaft 8 is arranged in the crushing cavity 5, a discharge hole is formed in the bottom of the crushing cavity 5, and a filter screen 9 is arranged at the discharge hole; the machine body 1 is provided with a water injection cooling mechanism 10, the water injection cooling mechanism 10 comprises mounting bases 11 arranged on two sides of the machine body, each mounting base 11 is respectively provided with a shock absorption frame 12 and a water tank 13, a first cooling cavity channel 14 is arranged in the first-stage crushing roller 6, a second cooling cavity channel 15 is arranged in the second-stage crushing roller 7, and a third cooling cavity channel 16 is arranged on the crushing cutter shaft 8; the bottom of the water tank 13 is connected with a main water pipe 17, a plurality of branch water pipes 18 are arranged on the main water pipe 17, the branch water pipes 18 are respectively connected with the shaft end of the primary crushing roller 6, the shaft end of the secondary crushing roller 7 and the shaft end of the crushing cutter shaft 8 through a rotary connecting pipe 19, and the rotary connecting pipe 19 is fixed on the shock absorption frame 12; the top of one of the water tanks 13 is provided with a positioning frame 20, the positioning frame 20 is provided with a telescopic cylinder 21 which is vertically downward and extends into the water tank 13, and the telescopic end of the telescopic cylinder 21 is provided with a piston push block 22 which slides along the water tank 13; a heat dissipation mechanism 23 is arranged in the other water tank 13. The invention carries out multi-stage crushing and crushing on solid through the first-stage crushing roller 6, the second-stage crushing roller 7 and the crushing cutter shaft 8, thereby improving the crushing efficiency, firstly, the first-stage crushing roller 6 carries out pre-crushing on solid molding sand to crush the solid molding sand into molding sand solid with larger specification, then, under the action of the second-stage crushing roller 7, the molding sand solid with larger specification is further crushed to crush the molding sand solid with smaller specification, and finally, the crushing is carried out under the crushing cutter shaft 8, thereby effectively improving the crushing efficiency, in addition, the water injection and cooling mechanism 10 can carry out water injection and heat dissipation on the first-stage crushing roller 6, the second-stage crushing roller 7 and the crushing cutter shaft 8 respectively, thereby effectively avoiding the high-strength friction generated between the first-stage crushing roller 6, the second-stage crushing roller 7, the crushing cutter shaft 8 and the solid molding sand during the crushing and recycling of the solid molding sand, resulting in a significant heat buildup. When the water injection cooling mechanism 10 works, the flexible air cylinder 21 makes periodic flexible motion to push the movable push block downwards along the water tank 13, the movable push block pushes the water in the water tank 13 downwards into the first cooling cavity channel 14 in the first-stage crushing roller 6, the second cooling cavity channel 15 of the second-stage crushing roller 7 and the third cooling cavity channel 16 of the crushing cutter shaft 8 through the main water pipe 17 respectively to perform water-cooling heat dissipation on the first-stage crushing roller 6, the second-stage crushing roller 7 and the crushing cutter shaft 8, hot water generated by heat dissipation flows into the other water tank 13, the heat dissipation mechanism 23 in the water tank 13 is used for dissipating the hot water generated by water cooling so as to be recycled, when the flexible air cylinder 21 contracts, the propelling motion is driven to move upwards along the water tank 13, the water in the other water tank 13 flows back to the first cooling cavity channel 14 in the first-stage crushing roller 6, the second cooling cavity channel 15 of the second-stage crushing roller 7 and the third cooling cavity channel 16 of the crushing cutter shaft 8 again, the water cooling heat dissipation is carried out on the primary crushing roller 6, the secondary crushing roller 7 and the crushing cutter shaft 8 in the periodic telescopic motion of the telescopic cylinder 21, and the water cooling heat dissipation device has the characteristic of good water cooling heat dissipation effect. According to the invention, the water injection cooling mechanism 10 is used for respectively carrying out water cooling heat dissipation on the primary crushing roller 6, the secondary crushing roller 7 and the crushing cutter shaft 8, so that the heat accumulation of the device in long-time use is reduced, the service life of the equipment is greatly prolonged, and the cost is saved; in addition, the invention also effectively avoids the generation of toxic gas due to higher temperature.
The rubber layer 24 is arranged on the outer side of the piston push block 22, so that the piston push block 22 has high sealing and waterproof performance when sliding along the inner wall of the water tank 13.
The rotary connecting pipe 19 comprises a positioning pipe 25, a piston cavity 26 is arranged in the positioning pipe 25, two ends of the piston cavity 26 are respectively provided with a rotary piston block 27, the back side of each rotary piston block 27 is connected with a butt joint pipe 28, the rotary piston block 27 is provided with a water inlet 29 communicated with the butt joint pipe 28, a plurality of first O-shaped sealing rings 30 are arranged between the rotary piston block 27 and the piston cavity 26, two ends of the positioning pipe 25 are provided with sealing end covers 31, a through hole 32 for the butt joint pipe 28 to pass through is arranged on each sealing end cover 31, one butt joint pipe 28 is connected with a branch water pipe 18, the other butt joint pipe 28 is connected with the shaft end of the primary crushing roller 6, the shaft end of the secondary crushing roller 7 and the shaft end of the crushing cutter shaft 8, the positioning pipe 25 is firstly fixed on the damping frame 12, the rotary piston block 27 extending into the piston cavity 26 in the positioning pipe 25 is arranged on the butt joint pipe 28, so that the rotary piston block 27 on the butt joint pipe 28, and then can rotate and stretch out and draw back to connecting pipe 28, the accessible rotates the axle head of connecting pipe 19 and one-level crushing roller 6, the axle head of second grade crushing roller 7 and smashes the axle head of arbor 8 and be connected, has effectively avoided the water pipe to take place the winding phenomenon of knoing when one-level crushing roller 6, second grade crushing roller 7 and smash the arbor 8 and rotate, has the propulsion of the installation butt joint of being convenient for simultaneously, has better leakproofness, has effectively avoided the phenomenon of leaking to take place.
And a second O-shaped sealing ring 33 is arranged on the inner wall of the through hole 32 on the sealing end cover 31, so that the sealing effect is achieved.
The front end of the rotating piston block 27 is provided with a U-shaped sealing ring 34, which plays a role in sealing.
A plurality of reinforcing rods 38 are arranged between the first vertical frame 36 and the second vertical frame 37, so that the stability of the shock absorption frame is enhanced.
The heat dissipation mechanism comprises a plurality of vertically arranged heat dissipation fins 39 arranged on the outer side wall of the water tank 13, a plurality of vertically arranged heat collection grooves 40 which are recessed inwards are formed in the inner side wall of the water tank 13, the heat dissipation efficiency of a water body in the water tank 13 is improved, and the water body can be conveniently circulated and cooled.
The top of the water tank 13 is provided with a top cover 41, the top cover 41 is provided with a plurality of vent holes 42, so that when the water injection cooling mechanism 10 works, the telescopic cylinder 21 performs periodic telescopic motion along with the movable push block of the water tank 13 to cause the change of the volume of the water in the two water tanks 13, air enters the water tank 13 from the external environment at a faster jet speed, the water in the water tank 13 is conveniently cooled and dissipated, the natural heat dissipation efficiency of the water is effectively improved, then the water in the water tank 13 performs periodic telescopic motion on the telescopic cylinder 21, the air in the water tank 13 is pushed to the external environment, the water tank 13 performs periodic air suction and air discharge on the external environment along with the periodic telescopic motion of the telescopic cylinder 21, and the natural heat dissipation efficiency of the water in the water tank 13 is effectively improved.
The first cooling cavity channel 14, the second cooling cavity channel 15 and the third cooling cavity channel 16 are arranged in a spiral mode, and the heat exchange area is effectively increased.
The working principle is as follows: the invention carries out multi-stage crushing and crushing on solid through the first-stage crushing roller 6, the second-stage crushing roller 7 and the crushing cutter shaft 8, thereby improving the crushing efficiency, firstly, the first-stage crushing roller 6 carries out pre-crushing on solid molding sand to crush the solid molding sand into molding sand solid with larger specification, then, under the action of the second-stage crushing roller 7, the molding sand solid with larger specification is further crushed to crush the molding sand solid with smaller specification, and finally, the crushing is carried out under the crushing cutter shaft 8, thereby effectively improving the crushing efficiency, in addition, the water injection and cooling mechanism 10 can carry out water injection and heat dissipation on the first-stage crushing roller 6, the second-stage crushing roller 7 and the crushing cutter shaft 8 respectively, thereby effectively avoiding the high-strength friction generated between the first-stage crushing roller 6, the second-stage crushing roller 7, the crushing cutter shaft 8 and the solid molding sand during the crushing and recycling of the solid molding sand, resulting in a significant heat buildup. When the water injection cooling mechanism 10 works, the flexible air cylinder 21 makes periodic flexible motion to push the movable push block downwards along the water tank 13, the movable push block pushes the water in the water tank 13 downwards into the first cooling cavity channel 14 in the first-stage crushing roller 6, the second cooling cavity channel 15 of the second-stage crushing roller 7 and the third cooling cavity channel 16 of the crushing cutter shaft 8 through the main water pipe 17 respectively to perform water-cooling heat dissipation on the first-stage crushing roller 6, the second-stage crushing roller 7 and the crushing cutter shaft 8, hot water generated by heat dissipation flows into the other water tank 13, the heat dissipation mechanism 23 in the water tank 13 is used for dissipating the hot water generated by water cooling so as to be recycled, when the flexible air cylinder 21 contracts, the propelling motion is driven to move upwards along the water tank 13, the water in the other water tank 13 flows back to the first cooling cavity channel 14 in the first-stage crushing roller 6, the second cooling cavity channel 15 of the second-stage crushing roller 7 and the third cooling cavity channel 16 of the crushing cutter shaft 8 again, the water cooling heat dissipation is carried out on the primary crushing roller 6, the secondary crushing roller 7 and the crushing cutter shaft 8 in the periodic telescopic motion of the telescopic cylinder 21, and the water cooling heat dissipation device has the characteristic of good water cooling heat dissipation effect. According to the invention, the water injection cooling mechanism 10 is used for respectively carrying out water cooling heat dissipation on the primary crushing roller 6, the secondary crushing roller 7 and the crushing cutter shaft 8, so that the heat accumulation of the device in long-time use is reduced, the service life of the equipment is greatly prolonged, and the cost is saved; in addition, the invention also effectively avoids the generation of toxic gas due to higher temperature.
Claims (10)
1. The utility model provides a reducing mechanism is retrieved to molding sand for casting, includes organism (1), and the top of organism (1) is equipped with feeder hopper (2), its characterized in that: a primary crushing cavity (3), a secondary crushing cavity (4) and a crushing cavity (5) which are communicated are sequentially arranged inside the machine body (1) from top to bottom, a pair of primary crushing rollers (6) which are connected in a transmission mode are arranged in the primary crushing cavity (3), a pair of secondary crushing rollers (7) which are connected in a transmission mode are arranged in the secondary crushing cavity (4), a crushing cutter shaft (8) is arranged in the crushing cavity (5), a discharge hole is formed in the bottom of the crushing cavity (5), and a filter screen (9) is arranged at the discharge hole; the machine body (1) is provided with a water injection cooling mechanism (10), the water injection cooling mechanism (10) comprises mounting bases (11) arranged on two sides of the machine body, each mounting base (11) is respectively provided with a shock absorption frame (12) and a water tank (13), a first cooling cavity channel (14) is arranged in the first-stage crushing roller (6), a second cooling cavity channel (15) is arranged in the second-stage crushing roller (7), and a third cooling cavity channel (16) is arranged on the crushing cutter shaft (8); the bottom of the water tank (13) is connected with a main water pipe (17), a plurality of branch water pipes (18) are arranged on the main water pipe (17), the branch water pipes (18) are respectively connected with the shaft end of the primary crushing roller (6), the shaft end of the secondary crushing roller (7) and the shaft end of the crushing cutter shaft (8) through a rotating connecting pipe (19), and the rotating connecting pipe (19) is fixed on the shock absorption frame (12); the top of one of the water tanks (13) is provided with a positioning frame (20), the positioning frame (20) is provided with a telescopic cylinder (21) which is vertically downward and extends into the water tank (13), and the telescopic end of the telescopic cylinder (21) is provided with a piston push block (22) which slides along the water tank (13); and a heat dissipation mechanism (23) is arranged in the other water tank (13).
2. The molding sand recovery and pulverization apparatus for casting according to claim 1, characterized in that: and a rubber layer (24) is arranged on the outer side of the piston push block (22).
3. The molding sand recovery and pulverization apparatus for casting according to claim 1, characterized in that: the rotary connecting pipe (19) comprises a positioning pipe (25), a piston cavity (26) is arranged in the positioning pipe (25), rotary piston blocks (27) are respectively arranged at two ends of the piston cavity (26), the back side of each rotary piston block (27) is connected with a butt joint pipe (28), a water inlet hole (29) communicated with the butt joint pipe (28) is arranged on each rotary piston block (27), a plurality of first O-shaped sealing rings (30) are arranged between the rotary piston block (27) and the piston cavity (26), two ends of the positioning pipe (25) are provided with sealing end covers (31), through holes (32) for the butt joint pipes (28) to pass through are arranged on the sealing end covers (31), one of the butt joint pipes (28) is connected with the branch water pipe (18), and the other butt joint pipe (28) is connected with the shaft end of the first-stage crushing roller (6), the shaft end of the second-stage crushing roller (7) and the shaft end of the crushing cutter shaft (8).
4. The molding sand recovery and pulverization apparatus for casting according to claim 3, characterized in that: and a second O-shaped sealing ring (33) is arranged on the inner wall of the through hole (32) on the sealing end cover (31).
5. The molding sand recovery and pulverization apparatus for casting according to claim 3, characterized in that: the front end of the rotary piston block (27) is provided with a U-shaped sealing ring (34).
6. The molding sand recovery and pulverization apparatus for casting according to claim 1, characterized in that: shock mount (12) are including setting up vibration damping mount (35) on mounting base (11), the top of vibration damping mount (35) is equipped with vertical ascending first grudging post (36) and second grudging post (37), the axle head of one-level crushing roller (6), the axle head of second grade crushing roller (7) and the axle head of smashing arbor (8) all are connected with first grudging post (36) through the bearing, rotate connecting pipe (19) and install on second grudging post (37) and with the axle head of one-level crushing roller (6), the axle head of second grade crushing roller (7) and the axle head one-to-one of smashing arbor (8).
7. The molding sand recovery and pulverization apparatus for casting according to claim 6, characterized in that: a plurality of reinforcing rods (38) are arranged between the first vertical frame (36) and the second vertical frame (37).
8. The molding sand recovery and pulverization apparatus for casting according to claim 1, characterized in that: the heat dissipation mechanism comprises a plurality of vertically arranged heat dissipation fins (39) arranged on the outer side wall of the water tank (13), and a plurality of vertically arranged heat collection grooves (40) which are recessed inwards are formed in the inner side wall of the water tank (13).
9. The molding sand recovery and pulverization apparatus for casting according to claim 1, characterized in that: the top of water tank (13) is equipped with top cap (41), be equipped with a plurality of air vents (42) on top cap (41).
10. The molding sand recovery and pulverization apparatus for casting according to claim 1, characterized in that: the first cooling cavity channel (14), the second cooling cavity channel (15) and the third cooling cavity channel (16) are arranged spirally.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010349761.3A CN111437977B (en) | 2020-04-28 | 2020-04-28 | Molding sand recycling and smashing device for casting |
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| CN202010349761.3A CN111437977B (en) | 2020-04-28 | 2020-04-28 | Molding sand recycling and smashing device for casting |
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| CN111437977A true CN111437977A (en) | 2020-07-24 |
| CN111437977B CN111437977B (en) | 2021-05-18 |
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| CN114887711A (en) * | 2022-05-20 | 2022-08-12 | 铜陵有色兴铜机电制造有限公司 | Crushing roller cooling system |
| CN115739284A (en) * | 2022-11-07 | 2023-03-07 | 重庆九瑞金属材料有限公司 | Integrative device of broken screening |
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| CN115739284A (en) * | 2022-11-07 | 2023-03-07 | 重庆九瑞金属材料有限公司 | Integrative device of broken screening |
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|---|---|
| CN111437977B (en) | 2021-05-18 |
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Effective date of registration: 20220418 Address after: 030600 Magang Industrial Park, Taigu District, Jinzhong City, Shanxi Province (new generation) Patentee after: Shanxi Junxing Casting Co.,Ltd. Address before: Building C1, marine science and Technology Pioneer Park, Longwan District, Wenzhou City, Zhejiang Province 325024 Patentee before: INSTITUTE OF LASER AND OPTOELECTRONICS INTELLIGENT MANUFACTURING, WENZHOU University |
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