CN116197348B

CN116197348B - Metal casting foundry waste sand recovery unit

Info

Publication number: CN116197348B
Application number: CN202310435319.6A
Authority: CN
Inventors: 陈文美; 陈森
Original assignee: TAIZHOU MEIXIN CASTING CO Ltd
Current assignee: TAIZHOU MEIXIN CASTING CO Ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-07-07
Anticipated expiration: 2043-04-21
Also published as: CN116197348A

Abstract

The utility model relates to an environmental protection technical field, a metal casting foundry waste sand recovery unit, which comprises a frame, be equipped with movable jaw and fixed jaw in the frame, movable jaw is just being equipped with wearing layer I on the surface of fixed jaw, fixed jaw is just being equipped with wearing layer II on the surface of movable jaw, form broken passageway between wearing layer I and the wearing layer II, broken passageway's headspace is greater than broken passageway's bottom space for broken waste sand of step-by-step formation volume is qualified waste sand. According to the invention, when the movable jaw plate is close to the fixed jaw plate, the gap of the crushing channel is reduced, and waste sand in the crushing channel is crushed by continuously rotating the rotating disc at a low speed, so that the rotating disc grinds and crushes the surrounding waste sand, and simultaneously, cylindrical teeth synchronously rotating on the rotating disc apply shearing force in the rotating direction to the surrounding waste sand, and the waste sand which is gradually compressed is additionally crushed by extrusion, so that the crushing effect of the waste sand is improved.

Description

Metal casting foundry waste sand recovery unit

Technical Field

The application relates to the technical field of environmental protection, in particular to a metal casting foundry waste sand recovery device.

Background

In the casting process of metal castings, various qualified sand is required to be used for manufacturing a sand model, after the sand model is used, waste residues of casting raw materials are added in the sand, the sand cannot be reused to form waste sand, the waste sand is treated, the waste sand is greatly supported by China to be subjected to environment-friendly treatment and recycling, and the waste sand is generally recycled through the steps of crushing, sieving, sand manufacturing, grinding, dust collection and the like, so that qualified sand which can be used secondarily or discharged is finally obtained.

When the waste sand is crushed, because the waste sand generally contains impurities such as water, greasy dirt, pig iron, spheroidizing agent, ferrosilicon and the like (the impurities in the waste sand are different according to different casting components), a powerful crushing device is needed for effectively crushing the waste sand, and the jaw crusher has the advantages of stable performance, large crushing ratio, small vibration and the like, so that the jaw crusher is favored by many manufacturers.

The jaw crusher mainly comprises a fixed jaw plate and a movable jaw plate, wherein waste sand is thrown into a crushing channel formed between the fixed jaw plate and the movable jaw plate (the fixed jaw plate and the movable jaw plate are both provided with a wear-resistant layer, the wear-resistant layer is provided with a vertical strip-shaped groove), then the movable jaw plate is driven by an eccentric shaft to perform rapid and reciprocating motion, the movable jaw plate is close to the fixed jaw plate and lifts up and moves away from the fixed jaw plate and extrudes and crushes the waste sand, the crushed waste sand is gradually discharged from the bottom of the crushing channel to enter a subsequent sieving process, the waste sand is only extruded and crushed by the movable jaw plate to change the gap size of the crushing channel, and the movable jaw plate is used for crushing the waste sand upwards, so that single waste sand can be crushed effectively only by the repeated extrusion of the movable jaw plate, the crushing effect is unsatisfactory, the subsequent waste sand is easily caused to be often in the crushing channel, the waste sand in the crushing channel is not completely crushed, the waste sand is still accumulated in the crushing channel, the crushing channel is blocked, and the waste sand is still sticky and adhered to the crushing channel, and the waste sand is more viscous and adhered to the crushing channel is easy to the crushing channel.

Disclosure of Invention

The application provides a metal casting foundry waste sand recovery unit possesses that the rolling disc is rotatory to roll the waste sand that compresses tightly and is broken, the cylindricality tooth extrudes the waste sand and extrudes the breakage, the cylindricality tooth is rotatory to roll the waste sand and is broken, the waste sand is exerted the reaction force to the cylindricality tooth and is made cylindricality tooth rotation, the cylindricality tooth rotation changes the relative motion state with the arc tooth, the rolling disc is led the waste sand and is broken up, the cylindricality tooth gyration makes the waste sand that adheres drop, the cylindricality tooth is pressed into and is accomodate the hole, the cylindricality tooth carries out rectilinear motion cooperation gyration and makes the waste sand that adheres drop's advantage for solve waste sand crushing effect poor, jam that the waste sand is piled up and the crushing effect poor and the jam problem that the waste sand adhesion leads to.

In order to achieve the above purpose, the present application adopts the following technical scheme: the metal casting foundry waste sand recovery device comprises a frame, wherein a movable jaw plate and a fixed jaw plate are arranged in the frame, a wear-resistant layer I is arranged on the surface of the movable jaw plate, which is opposite to the fixed jaw plate, a wear-resistant layer II is arranged on the surface of the fixed jaw plate, which is opposite to the movable jaw plate, a crushing channel is formed between the wear-resistant layer I and the wear-resistant layer II, and the top space of the crushing channel is larger than the bottom space of the crushing channel and is used for gradually crushing waste sand to form waste sand with qualified volume;

the wear-resistant layer I is provided with a circular groove, arc-shaped teeth which are uniformly distributed are arranged in the circular groove, and annular grooves are formed between the arc-shaped teeth which are distributed in the direction from the center of the circular groove to the outer side and are used for providing a space for grinding waste sand;

the fixed jaw inboard activity has cup jointed the rolling disc, the rolling disc runs through wearing layer II, the downthehole storage hole of equipartition of seting up of rolling disc, be equipped with the cylindricality tooth in the storage hole for cooperation arc tooth grinds broken to the sand, be equipped with spacing arch on the lateral wall of cylindricality tooth, the downthehole spacing groove of seting up of accomodating, spacing arch is located the spacing inslot, be equipped with arc spring on the spacing arch, the friction groove has been seted up on the cylindricality tooth for the rotation of restriction cylindricality tooth.

Preferably, a power motor is arranged on the frame, a belt pulley I is arranged at the output end of the power motor, a belt is arranged on the belt pulley I, an eccentric shaft assembly is arranged at the top of the movable jaw plate, a belt pulley II is arranged at one end of the eccentric shaft assembly, and the belt pulley II is in transmission connection with the belt pulley I through the belt and is used for driving the movable jaw plate to swing.

Preferably, one side of the fixed jaw plate is provided with a rotary motor seat, and the output end of the rotary motor seat is fixedly connected with one end of the rotating disc and used for driving the rotating disc to rotate at a low speed.

Preferably, the rotating disc is cylindrical, the containing holes on the same circumference are distributed in an annular mode and used for limiting the cylindrical tooth to follow the track of the rotating disc, the limiting groove is annular, positioning protrusions are arranged in the limiting groove, one end of the arc-shaped spring is connected with the positioning protrusions and used for maintaining deformation of the arc-shaped spring and limiting rotation of the cylindrical tooth.

Preferably, the depth value of the receiving hole is smaller than the height value of the cylindrical tooth, and the depth value of the limiting groove is equal to the height value of the limiting protrusion, so as to limit the movement state of the cylindrical tooth.

Preferably, the top of the cylindrical tooth is hemispherical, the friction groove is arc-shaped, one end of the arc-shaped friction groove is close to the top of the hemispherical of the cylindrical tooth top, and the other end of the arc-shaped friction groove is close to the bottom of the hemispherical, so that uneven stress distribution is formed at the top of the cylindrical tooth.

Preferably, the depth value of the receiving hole is greater than the height value of the cylindrical tooth, and the depth value of the limiting groove is greater than the height value of the limiting protrusion, so as to provide a space for the cylindrical tooth to do linear motion.

Preferably, a reset spring is arranged at the bottom end of the storage hole, and the top end of the reset spring is attached to the bottom end of the cylindrical tooth and is used for providing power for the cylindrical tooth to reciprocate.

The utility model provides a pair of metal casting foundry waste sand recovery unit, be close to fixed jaw at the movable jaw, reduce broken passageway's clearance, when squeezing broken to the waste sand in the broken passageway, through the continuous low-speed rotation of rolling disc, make the rolling disc grind broken to the waste sand around, simultaneously, synchronous pivoted cylindricality tooth will apply the shearing force of direction of rotation to the waste sand around on the rolling disc, carry out extra extrusion broken to the waste sand that compresses tightly gradually to improve the crushing effect of waste sand.

Simultaneously, when the movable jaw plate is close to the fixed jaw plate, the rotating disc is in the pivoted in-process, the cylindricality tooth will be pressed into in the ring channel that is close to gradually, makes the waste sand on every side carry out high-efficient crushing under the extrusion of cylindricality tooth and ring channel to carry out high-efficient grinding under the relative motion of cylindricality tooth and arc tooth and break, further improvement waste sand's crushing effect.

Meanwhile, by gradually compacting the waste sand, the waste sand is subjected to upward extrusion force of the movable jaw plate, the rotary force of the rotary disc and the extrusion force of the cylindrical teeth, so that the waste sand applies reaction force to the cylindrical teeth, particularly the parts of the friction grooves, and the cylindrical teeth rotate to one side (the rotation direction is influenced by the reaction force direction), the relative motion state between the cylindrical teeth and the arc teeth is changed, the crushing effect on the waste sand is improved, in the process, the arc springs are used for deforming and storing energy, when the movable jaw plate is far away from the fixed jaw plate, the compacted waste sand is loosened, at the moment, the arc springs for storing energy drive the rotating cylindrical teeth to rotate, so that the waste sand around the rotating cylindrical teeth is stirred, the waste sand adhered around is loosened, and the adhesion probability is reduced.

Simultaneously, through pivoted rolling disc and cylindricality tooth, make rolling disc and cylindricality tooth drive the waste sand and gradually remove to the bottom opening of broken passageway to cooperation arc tooth and ring channel break up the waste sand after the breakage, when leading the waste sand, improve the efficiency of discharging broken passageway, also dispersed broken waste sand, avoid broken waste sand and uncrushed waste sand still to be in the accumulation state, lead to uncrushed waste sand to receive the protection of broken waste sand, and reduce crushing effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the structural positions of the swing and fixed jaws of the present invention;

FIG. 3 is a schematic view of the swing jaw of the present invention;

FIG. 4 is a schematic view of the structural positions of the fixed jaw and the rotating disk of the present invention;

FIG. 5 is a schematic view of the structural position of the positioning protrusion of the present invention;

FIG. 6 is a schematic view of a cylindrical tooth structure according to the present invention;

FIG. 7 is a schematic diagram showing the structural positions of the limiting groove and the cylindrical teeth according to the first embodiment of the present invention;

fig. 8 is a schematic diagram of structural positions of a return spring and a cylindrical tooth according to a second embodiment of the present invention.

1. A frame; 2. a power motor; 3. a belt; 4. an eccentric shaft assembly; 5. a swing jaw plate; 6. a wear-resistant layer I; 7. arc teeth; 8. an annular groove; 9. a linear groove; 10. a fixed jaw plate; 11. a wear-resistant layer II; 12. a rotating disc; 121. a receiving hole; 122. a limit groove; 123. positioning the bulge; 13. cylindrical teeth; 131. a friction groove; 14. rotating the motor base; 15. a limit protrusion; 16. an arc spring; 17. and a return spring.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Embodiment one: referring to fig. 1 to 2, a metal casting foundry waste sand recovery device comprises a frame 1, wherein one side of the top end of the frame 1 is fixedly connected with a power motor 2, the output end of the power motor 2 is provided with a belt pulley I, a belt 3 is arranged on the belt pulley, a movable jaw plate 5 is movably sleeved in the frame 1, the top of the movable jaw plate 5 is movably sleeved with an eccentric shaft assembly 4, one end of the eccentric shaft assembly 4 is provided with a belt pulley II, the belt pulley II is in transmission connection with the belt pulley I through the belt 3, the power motor 2 can transmit rotary force to the eccentric shaft assembly 4 through the belt pulley I, the belt 3 and the belt pulley II, and the eccentric shaft assembly 4 drives the movable jaw plate 5 to do rapid and reciprocating movement which is close to and lifts up and moves away from the fixed jaw plate 10.

Referring to fig. 1 to 4, a fixed jaw plate 10 is fixedly sleeved in a frame 1, a fixed jaw plate 5 is fixedly connected with a wear-resistant layer I6 on the surface of the fixed jaw plate 10, the fixed jaw plate 10 is fixedly connected with a wear-resistant layer II 11 on the surface of the movable jaw plate 5, when waste sand is crushed, the wear-resistant layer I6 and the wear-resistant layer II 11 are always in contact with the waste sand, the worn wear-resistant layer I6 and the wear-resistant layer II 11 can be quickly replaced, a crushing channel is formed between the wear-resistant layer I6 and the wear-resistant layer II 11, the top space of the crushing channel is larger than the bottom space of the crushing channel, the waste sand can be gradually crushed into waste sand reaching the standard under the clearance change of the crushing channel after being thrown into the crushing channel, finally the waste sand is discharged from the bottom of the crushing channel, and straight grooves 9 uniformly distributed on the wear-resistant layer I6 and the wear-resistant layer II 11 are respectively formed, the friction force between the wear-resistant layer I6 and the wear-resistant layer II 11 is increased, and the contact extrusion force on the waste sand is increased.

Referring to fig. 2 to 3, a circular groove is formed in the wear-resistant layer i 6, arc teeth 7 uniformly distributed are arranged in the circular groove, the arc teeth 7 on the same circumference are distributed in a ring shape, an annular groove 8 is formed between the arc teeth 7 distributed from the center of the circular groove to the outer side, and a grinding space and a waste sand flowing space are provided for waste sand.

Referring to fig. 1 to 2 and fig. 4, a rotating disc 12 is movably sleeved in a fixed jaw plate 10, the rotating disc 12 penetrates through a wear-resistant layer ii 11, a rotary motor seat 14 is arranged on one side of the fixed jaw plate 10, and an output end of the rotary motor seat 14 is fixedly connected with one end of the rotating disc 12, so that the rotary motor seat 14 can drive the rotating disc 12 to rotate at a low speed, and at the moment, the fixed jaw plate 10 still keeps a fixed state, so that the rotating disc 12 rotates and grinds waste sand in a crushing channel, and the crushing effect of the waste sand is improved.

Referring to fig. 4 to 7, the rotating disc 12 is cylindrical, the rotating disc 12 is provided with uniformly distributed containing holes 121, the containing holes 121 on the same circumference are annularly distributed, the containing holes 121 are internally provided with limiting grooves 122, the limiting grooves 122 are annular, the limiting grooves 122 are internally provided with positioning protrusions 123, the containing holes 121 are movably sleeved with cylindrical teeth 13, so that the cylindrical teeth 13 can be matched with the annular grooves 8, the cylindrical teeth 13 can slide in the annular grooves 8 when the cylindrical teeth 13 rotate along with the rotating disc 12, when the movable jaw 5 approaches to the fixed jaw 10, the cylindrical teeth 13 can squeeze the waste sand in the annular grooves 8 for squeezing and crushing, meanwhile, the cylindrical teeth 13 relatively rotate between the arc-shaped teeth 7 to rotationally grind the waste sand in the annular grooves 8, further improving the crushing effect of the waste sand, the side walls of the cylindrical teeth 13 are provided with limiting protrusions 15, the limit bulge 15 is positioned in the limit groove 122, two ends of the limit bulge 15 are fixedly connected with symmetrical arc springs 16, the other ends of the arc springs 16 are fixedly connected with positioning bulges 123, so that when the cylindrical teeth 13 extrude waste sand, the waste sand is extruded by the movable jaw 5 and gradually compacted, the waste sand will exert a reaction force on the cylindrical teeth 13, the cylindrical teeth 13 will rotate under the reaction force until the waste sand is compacted or the cylindrical teeth 13 rotate to the maximum (the arc springs 16 in the rotation direction of the cylindrical teeth 13 are compressed to the maximum), at this time, the rotation of the cylindrical teeth 13 will make the relative movement condition of the cylindrical teeth 13 and the arc teeth 7 more complex, the waste sand crushing effect is stronger, meanwhile, when the movable jaw 5 is far away from the fixed jaw 10, the compacted waste sand will relax, the deformed arc springs 16 will pull the cylindrical teeth 13 to rotate, and break up the surrounding waste sand, the probability of adhesion of the waste sand is reduced.

Referring to fig. 7, the depth of the receiving hole 121 is smaller than the height of the cylindrical tooth 13, and the depth of the limiting groove 122 is equal to the height of the limiting protrusion 15, so that the cylindrical tooth 13 can only rotate, and the cylindrical tooth 13 is inserted into the annular groove 8 when the swing jaw 5 approaches the fixed jaw 10.

Referring to fig. 6 to 7, the tops of the cylindrical teeth 13 are hemispherical, the tops of the cylindrical teeth 13 are located in the crushing channel, the tops of the cylindrical teeth 13 are provided with friction grooves 131, the friction grooves 131 are arc-shaped, one end of each arc is close to the top of a hemisphere at the top of each cylindrical tooth 13, and the other end of each arc is close to the bottom of the hemisphere, so that when the waste sand applies a reaction force to the cylindrical teeth 13, the reaction force applied to the positions of the friction grooves 131 is greater than the reaction force of other relatively smooth positions of the cylindrical teeth 13, and the cylindrical teeth 13 can rotate.

Embodiment two: on the basis of the first embodiment; referring to fig. 8, the depth of the receiving hole 121 is greater than the height of the cylindrical tooth 13, the depth of the limiting groove 122 is greater than the height of the limiting protrusion 15, the bottom end of the receiving hole 121 is fixedly connected with the return spring 17, the other end of the return spring 17 is attached to the bottom end of the cylindrical tooth 13, so that when the waste sand is compressed, the cylindrical tooth 13 is pushed to move towards the bottom end of the receiving hole 121, the return spring 17 is compressed, the cylindrical tooth 13 still rotates, the arc spring 16 is deformed obliquely towards the bottom end of the receiving hole 121, when the waste sand is relaxed, the compressed return spring 17 pushes the cylindrical tooth 13 to move towards the movable jaw 5, and meanwhile the deformed arc spring 16 drives the cylindrical tooth 13 to rotate, so that the cylindrical tooth 13 performs forward rotation, stronger and more variable shearing force is applied to surrounding waste sand, and the adhesion of the waste sand is further reduced.

Claims

1. The metal casting waste sand recycling device is characterized by comprising a frame (1), wherein a movable jaw plate (5) and a fixed jaw plate (10) are arranged in the frame (1), a wear-resistant layer I (6) is arranged on the surface, opposite to the fixed jaw plate (10), of the movable jaw plate (5), a wear-resistant layer II (11) is arranged on the surface, opposite to the movable jaw plate (5), of the fixed jaw plate (10), a crushing channel is formed between the wear-resistant layer I (6) and the wear-resistant layer II (11), and the top space of the crushing channel is larger than the bottom space of the crushing channel and is used for gradually crushing waste sand to form waste sand with qualified volume; the wear-resistant layer I (6) is provided with a circular groove, arc-shaped teeth (7) which are uniformly distributed are arranged in the circular groove, and annular grooves (8) are formed between the arc-shaped teeth (7) which are distributed in the direction from the center of the circular groove to the outer side and are used for providing a space for grinding waste sand;

the fixed jaw plate (10) is internally and movably sleeved with a rotating disc (12), the rotating disc (12) penetrates through a wear-resistant layer II (11), storage holes (121) uniformly distributed are formed in the rotating disc (12), cylindrical teeth (13) are arranged in the storage holes (121) and used for being matched with arc teeth (7) to grind and crush waste sand, limiting protrusions (15) are arranged on the side walls of the cylindrical teeth (13), limiting grooves (122) are formed in the storage holes (121), the limiting protrusions (15) are located in the limiting grooves (122), arc springs (16) are arranged on the limiting protrusions (15), and friction grooves (131) are formed in the cylindrical teeth (13) and used for limiting rotation of the cylindrical teeth (13);

a rotary motor seat (14) is arranged on one side of the fixed jaw plate (10), and the output end of the rotary motor seat (14) is fixedly connected with one end of the rotary disc (12) and is used for driving the rotary disc (12) to rotate at a low speed; the rotating disc (12) is cylindrical, containing holes (121) on the same circumference are annularly distributed and used for limiting cylindrical teeth (13) to follow a rotating track of the rotating disc (12), the limiting groove (122) is annular, a positioning protrusion (123) is arranged in the limiting groove (122), one end of the arc-shaped spring (16) is connected with the positioning protrusion (123) and used for maintaining deformation of the arc-shaped spring (16) and limiting rotation of the cylindrical teeth (13); the top of cylindricality tooth (13) is hemispherical, friction groove (131) are the arc, and curved one end is close to the top of cylindricality tooth (13) top hemisphere, and the other end is close to the bottom of hemisphere for form inhomogeneous atress distribution at the top of cylindricality tooth (13).

2. The metal casting foundry waste sand recovery device according to claim 1, wherein the frame (1) is provided with a power motor (2), the output end of the power motor (2) is provided with a belt pulley I, the belt pulley I is provided with a belt (3), the top of the movable jaw plate (5) is provided with an eccentric shaft assembly (4), one end of the eccentric shaft assembly (4) is provided with a belt pulley II, and the belt pulley II is in transmission connection with the belt pulley I through the belt (3) and is used for driving the movable jaw plate (5) to swing.

3. The metal casting foundry waste sand recovery device according to claim 1, wherein the depth value of the receiving hole (121) is smaller than the height value of the cylindrical tooth (13), and the depth value of the limiting groove (122) is equal to the height value of the limiting protrusion (15) for limiting the movement state of the cylindrical tooth (13).

4. The metal casting foundry waste sand recovery device according to claim 1, wherein the depth value of the receiving hole (121) is larger than the height value of the cylindrical tooth (13), and the depth value of the limit groove (122) is larger than the height value of the limit protrusion (15) for providing a space for the cylindrical tooth (13) to do linear motion.

5. The metal casting foundry waste sand recovery device according to claim 4, wherein a return spring (17) is provided at the bottom end of the receiving hole (121), and the top end of the return spring (17) is attached to the bottom end of the cylindrical tooth (13) for providing power for reciprocating movement of the cylindrical tooth (13).