CN115475680B - Wet rod mill sand making machine and use method thereof - Google Patents

Wet rod mill sand making machine and use method thereof Download PDF

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Publication number
CN115475680B
CN115475680B CN202211247410.7A CN202211247410A CN115475680B CN 115475680 B CN115475680 B CN 115475680B CN 202211247410 A CN202211247410 A CN 202211247410A CN 115475680 B CN115475680 B CN 115475680B
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China
Prior art keywords
bolt
wall
ring
sealing
annular
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CN115475680A (en
Inventor
饶战胜
朱吉米
张宏强
范宇彪
王强
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Guangdong Lei Meng Heavy Machinery Manufacturing Co ltd
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Guangdong Lei Meng Heavy Machinery Manufacturing Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/22Lining for containers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention relates to the technical field of rod mills and discloses a wet rod mill sand making machine which comprises a barrel, wherein a buffer pad and a lining plate are sequentially paved on the inner wall of the barrel from outside to inside, mounting through holes are formed in the barrel, the buffer pad and the lining plate in a penetrating manner, bolts are inserted into the mounting through holes, fastening nuts are connected with the outer walls of the bolts in a threaded manner, a fixing ring is fixedly arranged on the inner wall of the mounting through holes, the bolts are movably inserted into the fixing ring, and a slot is formed in the top of the fixing ring; the annular sealing gasket can be inwards concave by pushing the steel balls by the slope surface, so that the annular sealing gasket is tightly attached to the outer wall of the bolt, and the sealing between the fixing ring and the bolt is ensured; the inner ring is used for extruding the sealing rings, so that the sealing rings can deform, the annular recess is filled with the sealing rings, the inner wall of the pressing sleeve is tightly attached to the sealing rings, and the tightness between the bolt and the pressing sleeve is ensured. The invention has the advantages of novel design, good sealing performance between the bolt and the cylinder body and effective prevention of slurry leakage.

Description

Wet rod mill sand making machine and use method thereof
Technical Field
The invention relates to the technical field of rod mills, in particular to a wet rod mill sand making machine and a use method thereof.
Background
In the field of coal processing such as coal chemical industry, water, coal, additive solution and the like are fed into a rod mill through a feeder, and are impacted and ground by a grinding rod in the rod mill to prepare water-coal slurry for subsequent use, so that the wet rod mill sand making machine is widely applied to the coal chemical industry.
The inner wall of the rod mill is generally paved with a lining plate, and the lining plate in the prior art is generally connected with the cylinder body directly through bolts. If the lining plates are directly connected with the cylinder body through bolts, although the fixing effect can be ensured, the sealing component is lacked, the tightness is poor, when the rod mill cylinder body rotates at high speed, the coal water slurry is easy to leak from the gaps between the lining plates, and then the coal water slurry is leaked outwards from the gaps between the bolts and the cylinder body;
the slurry leakage of the barrel of the rod mill not only wastes a large amount of raw material coal, but also seriously affects the stable operation of equipment, shortens the service life of the equipment, and simultaneously, the coal water slurry is dried and fixed to cause floating of plant coal dust, so that flash explosion risk exists, and a large amount of labor is consumed even if the cleaning is performed timely;
based on this, we propose a wet rod mill sand making machine and a method of use thereof.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a wet rod grinding sand making machine and a use method thereof, which have the advantages of good sealing performance between a bolt and a cylinder body and effectively preventing slurry leakage.
(II) technical scheme
In order to achieve the purposes of good sealing performance and effective slurry leakage prevention between the bolt and the cylinder, the invention provides the following technical scheme: the wet rod mill sand making machine comprises a barrel, wherein a buffer cushion and a lining plate are sequentially paved on the inner wall of the barrel from outside to inside, mounting through holes are formed in the barrel, the buffer cushion and the lining plate in a penetrating manner, bolts are inserted into the mounting through holes, fastening nuts are connected with the outer walls of the bolts in a threaded manner, a fixing ring is fixedly installed on the inner wall of the mounting through holes, the bolts are movably inserted into the fixing ring, and a slot is formed in the top of the fixing ring;
an annular groove is formed in the inner wall of the fixed ring, an annular sealing gasket is fixedly arranged in the annular groove, a plurality of communication grooves are formed between the slot and the annular groove in a penetrating manner, and steel balls are movably arranged in the communication grooves;
the bolt is sleeved with a gland, one side of the gland facing the mounting through hole is fixedly provided with a gland, and the inner wall of the lower end of the gland is provided with a slope surface.
As a preferable technical scheme of the invention, the upper end and the lower end of the annular sealing gasket are respectively fixedly arranged on the inner top wall and the inner bottom wall of the annular groove.
As a preferable technical scheme of the invention, a plurality of sealing rings are stacked on the inner side of the top of the fixed ring, and an inner ring for extruding the plurality of sealing rings is fixedly arranged on the inner wall of the pressing sleeve.
As a preferable technical scheme of the invention, a plurality of sealing rings are sleeved on the bolt, and annular concave parts are formed at the positions of the outer wall of the bolt and the corresponding positions of the plurality of sealing rings.
As a preferable technical scheme of the invention, the bolt is further provided with a movable groove in a concave manner, a sliding ring is sleeved in the movable groove in an up-down movable manner, and a sealing ring is arranged at the top of the sliding ring.
As a preferable technical scheme of the invention, the outer wall of the pressing sleeve is fixedly provided with an outer buffer sleeve.
As a preferable technical scheme of the invention, the top end of the bolt is connected with a compression nut in a threaded manner.
As a preferable technical scheme of the invention, the bottom of the compression nut is movably provided with a plurality of stand columns in a telescopic manner, and when the cylinder body rotates, the stand columns extend out and are propped against the fastening nut.
As a preferable technical scheme of the invention, an inner cavity is formed in the compression nut, a pressing plate is movably arranged in the inner cavity, and a first spring is fixedly arranged between the top of the pressing plate and the inner top wall of the inner cavity;
the bottom of the compression nut is uniformly provided with a plurality of movable cavities, and the inner cavities are communicated with the plurality of movable cavities through a plurality of communicating pipes;
the movable cavities are movably provided with pistons, second springs are fixedly arranged between the bottoms of the pistons and the inner bottom wall of the movable cavity, and the stand columns are fixedly arranged at the bottoms of the pistons.
The application method of the wet rod mill sand making machine comprises the following steps:
s1, when the cylinder body and the lining plate rotate, the grinding body steel bar in the cylinder body rises to a certain height under the action of friction force and centrifugal force to be thrown down, so that the materials are impacted to be ground and crushed;
s2, pushing the steel balls by the slope surface can enable the annular sealing gasket to be concave, so that the annular sealing gasket is clung to the outer wall of the bolt, and sealing between the fixing ring and the bolt is ensured;
s3, the inner ring is used for extruding the sealing rings, so that the sealing rings can deform, the annular recess is filled, the inner wall of the pressing sleeve is tightly attached, and the tightness between the bolt and the pressing sleeve is ensured;
s4, when the cylinder body rotates, the sliding ring moves in the movable groove under the action of centrifugal force and extrudes the sealing ring, and tightness between the bolt and the inner ring can be effectively ensured through the extruded sealing ring.
S5, through screwing the compression nut on the bolt, on one hand, the compression effect on the gland is further improved, and on the other hand, the fastening nut is effectively prevented from loosening.
(III) beneficial effects
Compared with the prior art, the invention provides a wet rod grinding sand making machine, which has the following beneficial effects:
1. this wet-type rod mill sand making machine links barrel, welt and cushion together through bolt and fastening nut, and wherein gland and cover are overlapped on the bolt, can effectually guarantee the leakproofness between bolt and the barrel, prevents to leak thick liquid, and is specific:
the annular sealing gasket can be inwards concave by pushing the steel balls by the slope surface, so that the annular sealing gasket is tightly attached to the outer wall of the bolt, and the sealing between the fixing ring and the bolt is ensured; the inner ring is used for extruding the sealing rings, so that the sealing rings can deform, the annular recess is filled with the sealing rings, the inner wall of the pressing sleeve is tightly attached to the sealing rings, and the tightness between the bolt and the pressing sleeve is ensured.
2. According to the wet rod mill sand making machine, when the cylinder body rotates, the sliding ring moves in the movable groove under the action of centrifugal force and extrudes the sealing ring, so that the sealing ring is fully attached to the inner wall of the inner ring, and the sealing ring is tightly attached to the inner wall of the inner ring, so that the tightness between the bolt and the inner ring can be effectively ensured.
3. According to the wet rod mill sand making machine, the compression nut is screwed on the bolt, so that the compression effect on the gland can be further improved, and the fastening nut is effectively prevented from loosening;
when the cylinder rotates, the pressing plate can outwards move and compress the first spring under the action of centrifugal force, the pressing plate outwards moves to fill media in the inner cavity into the movable cavity through the communicating pipe, the media filled in the movable cavity push the piston to move inwards, the piston moves to compress the second spring, the stand column can extend out, and the stand column extends out to prop against the fastening nut, so that the fastening nut can be effectively prevented from loosening.
Drawings
FIG. 1 is a schematic view of a barrel structure of the present invention;
FIG. 2 is a cross-sectional view of a portion of a liner panel of the present invention;
FIG. 3 is an exploded view of a liner portion of the present invention;
FIG. 4 is an enlarged schematic view of a gland portion of the present invention;
FIG. 5 is an enlarged schematic view of the invention at A in FIG. 3;
FIG. 6 is an enlarged schematic view of a retaining ring portion of the present invention;
FIG. 7 is an enlarged schematic view of a bolt portion of the present invention;
fig. 8 is a cross-sectional view of the compression nut portion of the present invention.
In the figure: 1. a cylinder; 2. a lining plate; 3. a cushion pad; 4. mounting through holes; 5. a bolt; 6. a fastening nut; 7. a gland; 8. pressing the sleeve; 9. slope surface; 10. a fixing ring; 11. a slot; 12. an annular groove; 13. an annular gasket; 14. a communication groove; 15. steel balls; 16. a seal ring; 17. an inner ring; 18. an annular recess; 19. an outer buffer sleeve; 20. a movable groove; 21. a slip ring; 22. a seal ring; 23. a compression nut; 24. an inner cavity; 25. a pressing plate; 26. a first spring; 27. a communicating pipe; 28. a movable cavity; 29. a piston; 30. a column; 31. and a second spring.
Detailed Description
Embodiment one:
referring to fig. 1-8, a wet rod mill sand making machine comprises a barrel 1, wherein a buffer cushion 3 and a lining plate 2 are sequentially paved on the inner wall of the barrel 1 from outside to inside, mounting through holes 4 are formed in the barrel 1, the buffer cushion 3 and the lining plate 2 in a penetrating manner, bolts 5 are inserted into the mounting through holes 4, fastening nuts 6 are connected to the outer walls of the bolts 5 in a threaded manner, the barrel 1, the lining plate 2 and the buffer cushion 3 are connected together through the bolts 5 and the fastening nuts 6, the buffer cushion 3 plays a role in buffering, and when a grinding body steel rod falls on the lining plate 2, impact force can be buffered through the buffer cushion 3, so that the wall body of the barrel 1 is prevented from being damaged;
as shown in fig. 6, the inner wall of the installation through hole 4 is fixedly provided with a fixed ring 10, the bolt 5 is movably inserted into the fixed ring 10, and as the fixed ring 10 is fixedly arranged on the inner wall of the installation through hole 4, the fixed ring 10 and the installation through hole 4 are completely sealed, and if slurry leakage needs to be prevented, the tightness between the fixed ring 10 and the bolt 5 is ensured;
in this embodiment, the top of the fixing ring 10 is provided with the slot 11, the inner wall of the fixing ring 10 is provided with the annular groove 12, the annular groove 12 is internally and fixedly provided with the annular sealing gasket 13, as shown in fig. 6, the upper and lower ends of the annular sealing gasket 13 are respectively and fixedly arranged on the inner top wall and the inner bottom wall of the annular groove 12, so that the annular sealing gasket 13 can not only seal the annular groove 12, but also can freely deform (bulge or recess) at the middle part of the annular sealing gasket 13;
as shown in fig. 6, a plurality of communication grooves 14 are formed between the slot 11 and the annular groove 12 in a penetrating way, and steel balls 15 are movably arranged in the plurality of communication grooves 14;
as shown in fig. 4, a gland 7 is sleeved on the bolt 5, a gland 8 is fixedly arranged on one side of the gland 7 facing the mounting through hole 4, and a slope 9 is formed on the inner wall of the lower end of the gland 8;
the gland 7 and the pressure sleeve 8 are sleeved on the bolt 5, the bottom end of the pressure sleeve 8 is inserted into the slot 11 along with the penetration of the pressure sleeve 8 in the mounting through hole 4, the steel balls 15 are pushed by the slope surface 9, and the middle part of the annular sealing gasket 13 can be inwards concave by pushing the steel balls 15 by the slope surface 9, so that the pressure sleeve is tightly attached to the outer wall of the bolt 5, the tightness between the fixing ring 10 and the bolt 5 is effectively ensured, and slurry leakage is prevented;
in this embodiment, as shown in fig. 4 and 6, a plurality of sealing rings 16 are stacked on the inner side of the top of the fixed ring 10, the plurality of sealing rings 16 are all sleeved on the bolt 5, and an inner ring 17 for extruding the plurality of sealing rings 16 is fixedly installed on the inner wall of the pressing sleeve 8;
when the pressing sleeve 8 is inserted into the slot 11, the inner ring 17 can also extrude the plurality of sealing rings 16, and the inner ring 17 extrudes the plurality of sealing rings 16, so that the plurality of sealing rings 16 can deform, thereby fully filling the gap between the bolt 5 and the pressing sleeve 8 and ensuring the tightness;
in this embodiment, annular recesses 18 are further formed at positions corresponding to the outer walls of the bolts 5 and the plurality of seal rings 16, the plurality of seal rings 16 deform, and then the annular recesses 18 are filled, so that the tightness can be further improved and slurry leakage can be prevented by the irregularities of the annular recesses 18;
as shown in fig. 7, a movable groove 20 is formed on the bolt 5 in a concave manner, a sliding ring 21 is sleeved in the movable groove 20 in a vertically movable manner, a sealing ring 22 is arranged at the top of the sliding ring 21, and when the cylinder 1 rotates, the sliding ring 21 moves in the movable groove 20 under the action of centrifugal force and presses the sealing ring 22, so that the sealing ring 22 is fully adhered to the inner wall of the inner ring 17, and the tightness between the bolt 5 and the inner ring 17 can be effectively ensured through the tight adhesion of the sealing ring 22 on the inner wall of the inner ring 17;
in the embodiment, the centrifugal force of the rotation of the cylinder body 1 is skillfully utilized to seal the gap between the bolt 5 and the inner ring 17, and when the rotation speed of the cylinder body 1 is higher and the slurry leakage probability is higher, the tightness of the sealing ring 22 is better;
as shown in fig. 4, an outer buffer sleeve 19 is fixedly arranged on the outer wall of the pressing sleeve 8, and the outer buffer sleeve 19 fills a gap between the pressing sleeve 8 and the mounting through hole 4, so that on one hand, the mounting of the pressing sleeve 8 is more stable, on the other hand, the damping effect is also achieved, and the influence of the vibration of the cylinder 1 on the bolt 5 and the pressing sleeve 8 is reduced;
as shown in fig. 3, the top end of the bolt 5 is connected with a compression nut 23 in a threaded manner, and the compression nut 23 is screwed on the bolt 5, so that on one hand, the compression and fixing effects on the gland 7 can be further improved, and on the other hand, the fastening nut 6 is effectively prevented from loosening;
the bottom of the compression nut 23 is movably provided with a plurality of stand columns 30 in a telescopic manner, and when the cylinder body 1 rotates, the stand columns 30 extend out and are propped against the fastening nut 6;
specifically, as shown in fig. 8, an inner cavity 24 is formed in the compression nut 23, a pressing plate 25 is movably arranged in the inner cavity 24, a first spring 26 is fixedly arranged between the top of the pressing plate 25 and the inner top wall of the inner cavity 24, a plurality of movable cavities 28 are uniformly formed at the bottom of the compression nut 23, and the inner cavity 24 is communicated with the plurality of movable cavities 28 through a plurality of communicating pipes 27;
the pistons 29 are movably arranged in the movable cavities 28, second springs 31 are fixedly arranged between the bottoms of the pistons 29 and the inner bottom wall of the movable cavities 28, and upright posts 30 are fixedly arranged at the bottoms of the pistons 29;
when the cylinder body 1 rotates, the pressing plate 25 moves outwards under the action of centrifugal force and compresses the first spring 26, the pressing plate 25 moves outwards to charge media in the inner cavity 24 into the movable cavity 28 through the communicating pipe 27, the media filled in the movable cavity 28 pushes the piston 29 to move inwards, the piston 29 moves to compress the second spring 31, the upright post 30 stretches out, and the upright post 30 stretches out to prop against the fastening nut 6, so that the fastening nut 6 can be effectively prevented from loosening, and meanwhile, the compression nut 23 can be prevented from loosening by the counterforce of propping against;
in this embodiment, the medium may be either a gas or a liquid;
thus, the present embodiment can automatically lock the fastening nut 6 and the compression nut 23 by using the centrifugal force of the rotation of the cylinder 1, and the higher the rotation speed of the cylinder 1, the higher the loosening probability of the fastening nut 6 and the compression nut 23, the better the locking effect (tightening effect) of the column 30.
Embodiment two:
referring to fig. 1-8, the present embodiment provides a method for using a wet rod mill sand making machine, comprising the following steps:
firstly, when the cylinder body 1 and the lining plate 2 rotate, the internal grinding body steel bar rises to a certain height under the action of friction force and centrifugal force to be thrown down, so that the materials are impacted to be ground and crushed;
step two, pushing the steel balls 15 through the slope surface 9 can enable the annular sealing gasket 13 to be concave inwards, so that the annular sealing gasket is clung to the outer wall of the bolt 5, and sealing between the fixing ring 10 and the bolt 5 is ensured;
step three, the inner ring 17 extrudes the sealing rings 16, so that the sealing rings 16 can deform, the annular recess 18 is filled up, the inner wall of the pressing sleeve 8 is tightly attached, and the tightness between the bolt 5 and the pressing sleeve 8 is ensured;
and step four, when the cylinder body 1 rotates, the slip ring 21 moves in the movable groove 20 under the action of centrifugal force and presses the sealing ring 22, and the tightness between the bolt 5 and the inner ring 17 can be effectively ensured through the pressed sealing ring 22.
And fifthly, the pressing effect on the gland 7 is further improved on one hand and the fastening nut 6 is effectively prevented from loosening on the other hand by screwing the pressing nut 23 on the bolt 5.
The working principle and the using flow of the invention are as follows:
the cylinder body 1, the lining plate 2 and the buffer cushion 3 are connected together through the bolts 5 and the fastening nuts 6, wherein the gland 7 and the pressing sleeve 8 are sleeved on the bolts 5, so that the tightness between the bolts 5 and the cylinder body 1 can be effectively ensured, slurry leakage is prevented, and the concrete is that:
the annular sealing gasket 13 can be inwards recessed by pushing the steel balls 15 through the slope surface 9, so that the annular sealing gasket is tightly attached to the outer wall of the bolt 5, and the sealing between the fixing ring 10 and the bolt 5 is ensured; the inner ring 17 presses the sealing rings 16, so that the sealing rings 16 can deform, the annular recess 18 is filled up, the inner wall of the pressing sleeve 8 is tightly attached, and the tightness between the bolt 5 and the pressing sleeve 8 is ensured;
when the cylinder body 1 rotates, the slip ring 21 moves in the movable groove 20 under the action of centrifugal force and extrudes the sealing ring 22, so that the sealing ring 22 is fully attached to the inner wall of the inner ring 17, and the tightness between the bolt 5 and the inner ring 17 can be effectively ensured through the tight attachment of the sealing ring 22 on the inner wall of the inner ring 17;
by screwing the compression nut 23 on the bolt 5, on one hand, the compression effect on the gland 7 can be further improved, and on the other hand, the fastening nut 6 is effectively prevented from loosening;
when the cylinder body 1 rotates, the pressing plate 25 moves outwards under the action of centrifugal force and compresses the first spring 26, the pressing plate 25 moves outwards to fill the medium in the inner cavity 24 into the movable cavity 28 through the communicating pipe 27, the medium filled in the movable cavity 28 pushes the piston 29 to move inwards, the piston 29 moves to compress the second spring 31, the upright post 30 stretches out, and the upright post 30 stretches out to prop against the fastening nut 6, so that the fastening nut 6 can be effectively prevented from loosening, and the self loosening can be prevented by the counterforce of propping.

Claims (5)

1. The utility model provides a wet rod mill sand making machine, includes barrel (1), blotter (3) and welt (2) have been laid in proper order from outside to inside to the inner wall of barrel (1), link up on barrel (1), blotter (3) and welt (2) and have seted up installation through-hole (4), installation through-hole (4) interpolation is equipped with bolt (5), the outer wall threaded connection of bolt (5) has fastening nut (6), its characterized in that: the inner wall of the mounting through hole (4) is fixedly provided with a fixed ring (10), the bolt (5) is movably inserted into the fixed ring (10), and the top of the fixed ring (10) is provided with a slot (11);
an annular groove (12) is formed in the inner wall of the fixed ring (10), an annular sealing gasket (13) is fixedly arranged in the annular groove (12), a plurality of communication grooves (14) are formed between the slot (11) and the annular groove (12) in a penetrating manner, and steel balls (15) are movably arranged in the communication grooves (14);
a gland (7) is sleeved on the bolt (5), a gland (8) is fixedly arranged on one side of the gland (7) facing the mounting through hole (4), and a slope surface (9) is formed on the inner wall of the lower end of the gland (8);
the upper end and the lower end of the annular sealing gasket (13) are respectively fixedly arranged on the inner top wall and the inner bottom wall of the annular groove (12);
a plurality of sealing rings (16) are stacked on the inner side of the top of the fixed ring (10), and an inner ring (17) for extruding the plurality of sealing rings (16) is fixedly arranged on the inner wall of the pressing sleeve (8);
the plurality of sealing rings (16) are sleeved on the bolt (5), and annular depressions (18) are formed at the positions of the outer wall of the bolt (5) corresponding to the plurality of sealing rings (16);
a movable groove (20) is formed in the bolt (5) in a concave manner, a sliding ring (21) is sleeved in the movable groove (20) in an up-down movable manner, and a sealing ring (22) is arranged at the top of the sliding ring (21);
an outer buffer sleeve (19) is fixedly arranged on the outer wall of the pressing sleeve (8).
2. A wet rod mill sand making machine according to claim 1, wherein: the top end of the bolt (5) is connected with a compression nut (23) in a threaded manner.
3. A wet rod mill sand making machine according to claim 2, wherein: the bottom of the compression nut (23) is movably and telescopically provided with a plurality of stand columns (30), and when the cylinder body (1) rotates, the stand columns (30) extend out and are propped against the fastening nut (6).
4. A wet rod mill sand making machine according to claim 3, wherein: an inner cavity (24) is formed in the compression nut (23), a pressing plate (25) is movably arranged in the inner cavity (24), and a first spring (26) is fixedly arranged between the top of the pressing plate (25) and the inner top wall of the inner cavity (24);
the bottom of the compression nut (23) is uniformly provided with a plurality of movable cavities (28), and the inner cavity (24) is communicated with the plurality of movable cavities (28) through a plurality of communicating pipes (27);
the movable cavities (28) are movably provided with pistons (29), second springs (31) are fixedly arranged between the bottoms of the pistons (29) and the inner bottom wall of the movable cavities (28), and the upright posts (30) are fixedly arranged at the bottoms of the pistons (29).
5. A method of using a wet rod mill sand making machine according to claim 4, comprising the steps of:
s1, when the cylinder body (1) and the lining plate (2) rotate, the internal grinding body steel bar rises to a certain height under the action of friction force and centrifugal force and is thrown down, so that the materials are impacted and ground and crushed;
s2, pushing the steel balls (15) through the slope surface (9) can enable the annular sealing gasket (13) to be concave, so that the annular sealing gasket is clung to the outer wall of the bolt (5), and sealing between the fixing ring (10) and the bolt (5) is ensured;
s3, the inner rings (17) are used for extruding the sealing rings (16) to deform the sealing rings (16), so that the annular concave (18) is filled and the inner wall of the pressing sleeve (8) is tightly attached, and the tightness between the bolt (5) and the pressing sleeve (8) is ensured;
s4, when the cylinder body (1) rotates, the slip ring (21) moves in the movable groove (20) under the action of centrifugal force and extrudes the sealing ring (22), and the tightness between the bolt (5) and the inner ring (17) can be effectively ensured through the extruded sealing ring (22);
s5, through screwing the compression nut (23) on the bolt (5), on one hand, the compression effect on the gland (7) is further improved, and on the other hand, the fastening nut (6) is effectively prevented from loosening.
CN202211247410.7A 2022-10-12 2022-10-12 Wet rod mill sand making machine and use method thereof Active CN115475680B (en)

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CN115475680B true CN115475680B (en) 2023-06-02

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