CN210935181U - Ultrafine grinder with central feeding and inertia grading functions - Google Patents

Ultrafine grinder with central feeding and inertia grading functions Download PDF

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Publication number
CN210935181U
CN210935181U CN201921438652.8U CN201921438652U CN210935181U CN 210935181 U CN210935181 U CN 210935181U CN 201921438652 U CN201921438652 U CN 201921438652U CN 210935181 U CN210935181 U CN 210935181U
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hammer head
crushing
feeder
roller
gear ring
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CN201921438652.8U
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侯世春
孟阳
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Tangshan Shuangyang Machinery Equipment Co.,Ltd.
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Tangshan Fengnan Shuangyi Feed Machinery Co ltd
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Abstract

The utility model relates to a central feeding and inertia grading ultrafine grinder, which comprises a feeding mechanism, a grinding mechanism and a grading mechanism; the feeding mechanism comprises a feeder and a feeding pipe, the feeder is a double-roller type feeder, comprises a fast roller and a slow roller, and is driven by a variable frequency motor to rotate in opposite directions; the feeder is arranged at the top of the ultrafine grinder; the upper end of the feeding pipe is connected with the discharge port of the feeder, and the lower part of the feeding pipe is matched with a material distributing umbrella in the center of the crushing disc; the crushing mechanism mainly comprises a crushing chamber, a gear ring, a hammer, a wear-resistant lining plate and a crushing disc; the longitudinal section of the gear ring is in an inverted L shape and is divided into a side grinding surface and an upper grinding surface. The utility model discloses a to roll-type feeder with crushing function from super little rubbing crusher top center feed, has adopted inertia grading mechanism, has strengthened crushing function, has simplified the flow, has reduced the investment, has reduced power outfit, is an energy-saving super little rubbing crusher.

Description

Ultrafine grinder with central feeding and inertia grading functions
Technical Field
The utility model relates to an ultrafine grinder, specific theory relates to an ultrafine grinder of center feed, inertia grading.
Background
The ultrafine grinder mainly comprises a feeding mechanism, a grinding mechanism and a grading mechanism. The crushing mechanism mainly comprises a gear ring, a hammer, a wear-resistant lining plate and a crushing disc. The hammer is arranged at the outer edge of the upper surface of the crushing disc, and the gear ring is arranged on the inner wall of the crushing chamber corresponding to the hammer. The hammer head is driven by the crushing disc to rotate at a high speed, the material is beaten by the beating surface, and meanwhile, the material is thrown to the gear ring at a high speed.
The groove of the hammerhead grinding surface is matched with the gear ring, so that the material gear ring and the hammerhead are impacted and rubbed, and are crushed. The crushed material is carried into the grading mechanism by airflow passing through a gap between the crushing disc and the gear ring at high speed.
The grading mechanism is a grading impeller driven by a motor to rotate, and the materials are graded by adjusting the rotating speed of the grading impeller. The unqualified materials pass through the grading impeller and are discharged out of the machine, and the unqualified materials fall back to the crushing mechanism by centrifugal force and self weight to be crushed again.
Because the super little rubbing crusher ring gear of tradition only has the side lapping surface, does not have the lapping surface, and the slot sets up perpendicularly, and is penetrating from top to bottom, and windward side and leeward side equal with radial contained angle, and the material is very easily upwards taken out the crushing district by the high velocity gas stream that gets into the crushing room from the crushing dish down, smashes inefficiency.
The beating surface of the hammer head of the traditional ultrafine grinder is vertical to the grinding disc and is arranged along the diameter direction of the grinding disc, the side grinding surface only has two grooves inclining backwards, and the grinding effect is poor; the wear-resistant lining plate is an integral circular ring, has no other functions except abrasion resistance, and is inconvenient to replace.
The grading mechanism is an impeller-type grading machine, and needs to be driven by a motor, and the power of the motor is generally 1/10 of that of a main motor. When the grading impeller works, the grading impeller is greatly influenced by the flow of rotating air torsion generated by the crushing disc rotating at a high speed, and once the grading impeller is stopped accidentally and is difficult to restart in the working process, the grading impeller motor can be restarted only by turning off the main motor.
Traditional super little rubbing crusher feed mechanism is spiral, does not have other functions except the feed. In order to make the ultrafine grinder perform well, a coarse grinding system is needed to perform coarse grinding on the materials in advance. The coarse crushing system generally comprises a feeder, a crusher, a conveying device, a pulse dust collector, a fan, a silencer and the like, and is large in size, and the power equipment generally accounts for more than 65% of the main motor of the ultrafine crusher. Meanwhile, the feeding mechanism feeds materials from a feeding port on the side surface of the crushing chamber, and the materials which are just fed into the machine are thick, so that the abrasion of a machine shell and a gear ring at the feeding port is serious, and the abrasion of the whole machine shell and the gear ring is inconsistent.
SUMMERY OF THE UTILITY MODEL
To the not enough among the above-mentioned prior art, the utility model provides a simple structure, the life of extension central feed, the hierarchical super little rubbing crusher of inertia, the central feed of noise reduction simultaneously, the hierarchical super little rubbing crusher of inertia.
The utility model adopts the technical proposal that:
an ultrafine grinder with central feeding and inertia grading,
comprises a machine body, wherein a feeding mechanism is arranged at the upper part of the machine body;
a feeding mechanism), a crushing mechanism, a grading mechanism and a base are sequentially arranged below the feeding mechanism;
the feeding mechanism is arranged at the top of the machine body;
the feeding mechanism comprises a buffer hopper, wherein feeder silencers are arranged on two sides of the buffer hopper, and are surrounded by an iron plate, and sound-absorbing materials are attached to the periphery inside the feeder silencers;
a double-roller feeder and a feeding pipe are arranged below the buffer hopper;
the double-roller feeder comprises a shell, a fast roller, a slow roller, a feeding motor and a gear set; the diameters of reference circles of two gears forming the gear set are different, so that the two wave rollers have a difference in rotation speed.
The feeding motor is connected with one end of the fast roller through a belt pulley group;
the other end of the fast roller is connected with one end of the slow roller through a gear set;
the crushing mechanism comprises a crushing chamber, a gear ring, a hammer, a wear-resistant lining plate and a crushing disc;
the gear ring is fixed on the inner side of the side wall of the crushing chamber;
the longitudinal section of the single gear ring piece is in an inverted L shape, the longitudinal inner side surface is a side grinding surface, and the lower surface of the horizontal plane is an upper grinding surface;
the side grinding surface is provided with a longitudinal groove which is longitudinally inclined upwards and backwards, namely deviates from the movement direction of the hammer head (opposite to the movement direction of the hammer head), and the upper grinding surface is provided with a horizontal groove which is radially parallel to the crushing disc;
alloy strips are arranged on the windward sides of the longitudinal grooves and the horizontal grooves;
the hammer head body is in a five-surface shape;
the hammer head is a striking surface facing to the running direction of the hammer head, and the striking surface is inclined forwards and towards the gear ring direction simultaneously;
the surface of the hammer head opposite to the gear ring is a side grinding surface of the hammer head;
the side grinding surface of the hammer head is provided with a continuous sawtooth-shaped longitudinal groove which inclines forwards and is parallel to the striking surface;
the upper surface of the hammer head is an upper grinding surface,
the upper grinding surface is provided with a sawtooth-shaped transverse groove which is transversely parallel to the striking surface;
one surface of the hammer head body corresponding to the side grinding surface is the inner side surface of the hammer head;
the inner side surface of the hammer head is arc-shaped, so that the tail part of the hammer head body is in a ship bow shape;
the center of the hammer head body is provided with a sliding chute, the cross section of the sliding chute is in an inverted convex shape, the front part of the sliding chute is a cylindrical surface, and the sliding chute penetrates through the surface of the hammer head body backwards and downwards;
the shoulder plane of the chute is a mounting surface;
the cross section of the sliding block is rectangular, and the shape and the size of the sliding block are matched with the shapes of the upper part of the sliding groove and the tail part of the hammer head body;
the wear-resistant lining plate is provided with a first guide strip, and an alloy block is embedded below the striking surface;
a material distributing umbrella is arranged at the axis position of the upper surface of the crushing disc and matched with the bell mouth, and a second guide strip is arranged on the upper surface of the crushing disc;
the material separating umbrella and the bell mouth form an annular feeding channel;
the grading mechanism comprises a top cover, a guide ring and an upper cover;
the top cover is annular, is surrounded by a semicircular pipe with an opening at the lower part and is arranged above the crushing chamber;
the guide ring is arranged above the gear ring and is divided into an inner ring and an outer ring;
a channel is formed between the inner ring and the outer ring;
the upper cover is arranged above the top cover, the side surface of the upper cover is provided with an air outlet, and the top of the upper cover is provided with a double-roller feeder.
The surfaces of the fast roller and the slow roller are wavy, and fine tooth wires forming a certain angle with the axial direction are arranged on the wavy surfaces;
the wave crests and wave troughs of the fast rollers and the slow rollers are staggered and meshed with each other;
the upper end of the feeding pipe is connected with the double-roller feeder, and the lower end of the feeding pipe is made into a bell mouth;
the gear ring is formed by splicing 8 identical gear ring single pieces end to end into a complete annular gear ring,
the center of the crushing disc coincides with the center of the crushing chamber.
The utility model discloses relative prior art's beneficial effect:
the utility model discloses super little rubbing crusher in central feed, inertia grading replaces original screw feeder with to roll-type feeder. The double-roller feeder has strong crushing capacity, so that a coarse crushing system in the traditional process can be completely replaced, and the power allocation of the double-roller feeder only needs 15-20% of the power allocation of the coarse crushing system, so that the process requirement of superfine crushing can be met. The roller feeder can increase or decrease the feeding amount by adjusting the frequency of the motor; the crushing granularity can be adjusted by adjusting the roll distance between the fast and slow rolls.
The utility model discloses center feed, the hierarchical super little rubbing crusher of inertia establish at super little rubbing crusher top to the roll-type feeder, and the feed pipe is coaxial with the pivot of smashing the dish, adopts to inhale to penetrate the feed mode and makes and treat that the crushing material has certain initial velocity to rely on the smashing dish to obtain accelerating, be favorable to the material to get rid of to the ring gear, better smashing.
The utility model discloses super little rubbing crusher of central feed, inertia grading adopts the form of top center feed, has avoided the inhomogeneous problem of ring gear and casing wearing and tearing that traditional super little rubbing crusher exists, has prolonged the life of ring gear.
The utility model discloses super little rubbing crusher of central feed, inertia grading improves rubbing crusher's crushing ability: the grinding surface on the gear ring is increased, and the hammer head with the grinding surface is matched with the gear ring, so that the grinding yield of the ultrafine grinder is greatly improved, and excessive circulation of materials between the grinding mechanism and the grading mechanism is avoided.
The utility model discloses center feed, the hierarchical super little rubbing crusher of inertia replace impeller grading mechanism with inertia grading mechanism. Traditional impeller grading mechanism and superfine rubbing crusher integration are as an organic whole, compact structure, and hierarchical effectual. However, the crushing efficiency is affected by mutual interference between the crushing disc and the impeller classifier in the operation process. In particular, the shredder plate cannot be started before the impeller classifier, and once an accident occurs, the shredder plate must be stopped and the impeller classifier started. Meanwhile, the impeller classifier is provided with a variable frequency motor with the power of the main motor 1/10, so that kinetic energy consumption exists. The inertia grading mechanism is based on the aerodynamic principle, utilizes the inertia of materials to grade, has simple structure and does not consume power.
Drawings
FIG. 1 is a schematic structural view of a center-fed inertia-classification ultrafine pulverizer of the present invention;
FIG. 2 is a main view of the center-fed inertia-graded micronizer of the present invention;
FIG. 3 is a horizontal sectional view of the center-fed inertia classification ultrafine pulverizer of the present invention;
FIG. 4 is a top view of the central feeding and inertia classification ultrafine pulverizer of the present invention;
FIG. 5 is a vertical sectional view of the center-fed inertia-graded ultrafine pulverizer of the present invention;
FIG. 6 is a schematic top view of a roll-type feeder of the center-fed inertia-classification micronizer of the present invention;
FIG. 7 is a diagram showing the installation method of the hammer head of the center-fed inertia-classification ultrafine grinder of the present invention;
FIG. 8 is a front view of the hammer head body of the ultrafine grinder of the present invention;
FIG. 9 is a top view of the hammer head body of the ultrafine pulverizer of the present invention;
FIG. 10 is a right side view of the hammer head body of the ultrafine grinder of the present invention;
FIG. 11 is a longitudinal section of the hammer head body of the ultrafine pulverizer of the present invention;
FIG. 12 is a horizontal sectional view of the hammer head body of the ultrafine grinder of the present invention;
FIG. 13 is a front view of the hammer head slide block of the ultrafine grinder of the present invention;
fig. 14 is the utility model discloses superfine pulverizer tup slider top view.
In the drawings, the main parts are illustrated by symbols:
in the figure:
1. feeding mechanism 2, grading mechanism
3. Crushing mechanism 4, base
5. Buffer hopper 6 and feeder silencer
7. Double-roller feeder 8 and shell
9. Fast roller 10 and slow roller
11. Variable frequency motor 12 and gear set
13. Feeding pipe 14 and bell mouth
15. Grinding chamber 16, gear ring
17. Hammerhead 18 and wear-resistant lining plate
19. Crushing disk 20 and material separating umbrella
21. Top cover 22, guide ring
23. Upper cover 24, air outlet
31. Upper grinding surface 32 of hammer head and upper grinding surface of gear ring
33. A first guide strip 34, a second guide strip.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples:
as can be seen in FIGS. 1-14, a center-fed, inertia-graded micronizer,
comprises a machine body, wherein a feeding mechanism 1 is arranged at the upper part of the machine body;
a crushing mechanism 3, a grading mechanism 2 and a base 4 are sequentially arranged below the feeding mechanism 1;
the feeding mechanism 1 is arranged at the top of the machine body;
the feeding mechanism comprises a buffer hopper 5, wherein feeder silencers 6 are arranged on two sides of the buffer hopper 5, and are surrounded by an iron plate, and sound-absorbing materials 61 are adhered to the periphery inside the feeder silencers;
a double-roller feeder 7 and a feeding pipe 8 are arranged below the buffer hopper 5;
the double-roller feeder comprises a machine shell 9, a fast roller 10, a slow roller 11, a feeding motor 12 and a gear set 13; the two gears constituting the gear set 13 have different reference circle diameters, so that the two wave rollers have a difference in rotation speed.
The feeding motor 12 is connected with one end of the fast roller 10 through a belt pulley group;
the other end of the fast roller 10 is connected with one end of the slow roller 11 through a gear set 13;
the crushing mechanism 3 comprises a crushing chamber 15, a gear ring 16, a hammer 17, a wear-resistant lining plate 18 and a crushing disc 19;
the ring gear 16 is fixed inside the side wall of the crushing chamber 15;
the longitudinal section of the single gear ring piece is in an inverted L shape, the longitudinal inner side surface is a side grinding surface, and the lower surface of the horizontal plane is an upper grinding surface;
the side grinding surface is provided with a longitudinal groove which is longitudinally inclined upwards and backwards, namely deviates from the movement direction of the hammer head (opposite to the movement direction of the hammer head), and the upper grinding surface is provided with a horizontal groove which is radially parallel to the crushing disc;
the hammer head body is in a five-surface shape;
the hammer head is a striking surface 82 facing the hammer head running direction, and the striking surface 82 is inclined forwards and towards the gear ring direction simultaneously;
the surface of the hammer opposite to the gear ring is a hammer side grinding surface 83;
the hammer-head-side abrasive surface 83 is provided with a continuous serrated longitudinal groove 30 which is inclined forward and parallel to the striking surface;
the upper surface of the hammer head is a hammer head upper abrasive surface 84,
the upper grinding surface is provided with a sawtooth-shaped transverse groove 840 which is transversely parallel to the striking surface;
the surface of the hammer head body corresponding to the side grinding surface is a hammer head inner side surface 86;
the inner side surface of the hammer head is arc-shaped, so that the tail part of the hammer head body is in a ship bow shape;
the center of the hammer head body is provided with a sliding chute 85, the cross section of the sliding chute is in an inverted convex shape, the front part of the sliding chute is a cylindrical surface, and the sliding chute penetrates through the surface of the hammer head body backwards and downwards;
the shoulder plane of the chute is a mounting surface 851;
the cross section of the sliding block is rectangular, and the shape and the size of the sliding block are matched with the shapes of the upper part of the sliding groove and the tail part of the hammer head body;
the striking surface inclines forwards by 10 degrees and provides a downward component force during operation to prevent materials from rapidly escaping out of the grinding area upwards.
The striking face is inclined by 10 ° toward the ring gear direction. So as to better throw the material to the gear ring.
The striking surface of the hammer head body is provided with a striking surface alloy block 821;
the windward side of the longitudinal groove is provided with a longitudinal alloy strip 831;
the windward side of the transverse groove is provided with a transverse alloy strip 841.
The windward side of the longitudinal groove faces backwards to form an included angle of 20 degrees with the striking surface.
The leeward side and the windward side of the longitudinal groove form an included angle of 90 degrees.
The number of the longitudinal grooves is not less than 4.
The transverse grooves and the longitudinal grooves are communicated with each other, have the same shape and are equal in number; the shoulder plane of the chute is a mounting surface.
The height dimension and the length dimension of the hammer head body are larger than those of the traditional hammer head so as to increase the grinding area.
The slide block 87 is provided with 2 through screw holes 871.
The upper grinding surface is provided with a horizontal groove parallel to the upper surface of the striking surface;
alloy strips are arranged on the windward sides of the longitudinal grooves and the horizontal grooves;
the wear-resistant lining plate 18 is provided with a first guide strip 33, and an alloy block is embedded in the striking surface of the hammer head;
a material distributing umbrella 20 is arranged at the axis position of the upper surface of the crushing disc 19, the material distributing umbrella 20 is matched with the bell mouth 14, and a second guide strip 34 is arranged on the upper surface;
the material separating umbrella 20 and the bell mouth 14 form an annular feeding channel;
the grading mechanism 2 comprises a top cover 21, a guide ring 22 and an upper cover 23;
the top cover 21 is annular, is surrounded by a semicircular pipe with an opening at the lower part and is arranged above the crushing chamber 15;
the guide ring 22 is arranged above the gear ring 16 and is divided into an inner ring and an outer ring;
a channel 25 is formed between the inner ring and the outer ring;
the upper cover 23 is arranged above the top cover 21, the side surface of the upper cover is provided with an air outlet 24, and the top of the upper cover is provided with the double-roller feeder 7.
The surfaces of the fast roller 10 and the slow roller 11 are wavy, and fine tooth wires forming a certain angle with the axial direction are arranged on the wavy surfaces;
the wave crests and wave troughs of the fast roller 10 and the slow roller 11 are staggered and meshed with each other;
the upper end of the feeding pipe 8 is connected with the double-roller feeder 7, and the lower end is made into a bell mouth 14;
the gear ring 16 is formed by splicing 8 identical gear ring single pieces end to form a complete annular gear ring,
the centre of the grating disk 19 coincides with the centre of the grating chamber 15.
The utility model relates to a center feed, inertia hierarchical superfine pulverizer, including feed mechanism, rubbing crusher structure and hierarchical mechanism. The feeding mechanism comprises a feeder and a feeding pipe, the feeder relates to a double-roller feeder, and the double-roller feeder comprises a fast roller and a slow roller, and is driven by a variable frequency motor to rotate in opposite directions, so that the double-roller feeder not only has a feeding function, but also can coarsely crush materials. The feeder is arranged at the top of the ultrafine grinder. The upper end of the feeding pipe is connected with a discharge port of the feeder, the middle part of the feeding pipe is transited to be in a circular pipe shape, the lower part of the feeding pipe is in a bell mouth shape, and the bell mouth is matched with a material distributing umbrella in the center of the crushing disc. The crushing mechanism mainly comprises a crushing chamber, a gear ring, a hammer, a wear-resistant lining plate and a crushing disc. The gear ring relates to a novel gear ring, and the longitudinal section of the gear ring is in an inverted L shape and is divided into a side grinding surface and an upper grinding surface. The tup relates to a high-efficient fast-assembling tup, compares with traditional tup, has increased the last abrasive surface, and the abrasive surface cooperation on abrasive surface and the ring gear on the tup strengthens superfine pulverizer's grinding ability, and the fixing bolt of tup penetrates by the crushing dish below. The grading mechanism mainly comprises a top cover, a guide ring and an upper cover, wherein the top cover is annular and is enclosed by a semicircular pipe with an opening at the lower part, and materials are graded by inertia. The utility model discloses a to roll-type feeder with crushing function, from super little rubbing crusher top center feed, adopted inertia grading mechanism, strengthened crushing function, cancelled in the traditional crushing technology for the one-time crushing system of super little rubbing crusher service and combined impeller grader together with super little rubbing crusher, simplified the flow, reduced the investment, reduced power outfit, be an energy-saving super little rubbing crusher.
The utility model discloses super little rubbing crusher in central feed, inertia grading replaces original screw feeder with to roll-type feeder. The double-roller feeder has strong crushing capacity, so that a coarse crushing system in the traditional process can be completely replaced, and the power allocation of the double-roller feeder only needs 15-20% of the power allocation of the coarse crushing system, so that the process requirement of superfine crushing can be met. The roller feeder can increase or decrease the feeding amount by adjusting the frequency of the motor; the crushing granularity can be adjusted by adjusting the roll distance between the fast and slow rolls.
The utility model discloses center feed, the hierarchical super little rubbing crusher of inertia establish at super little rubbing crusher top to the roll-type feeder, and the feed pipe is coaxial with the pivot of smashing the dish, adopts to inhale to penetrate the feed mode and makes and treat that the crushing material has certain initial velocity to rely on the smashing dish to obtain accelerating, be favorable to the material to get rid of to the ring gear, better smashing.
The utility model discloses super little rubbing crusher of central feed, inertia grading adopts the form of top center feed, has avoided the inhomogeneous problem of ring gear and casing wearing and tearing that traditional super little rubbing crusher exists, has prolonged the life of ring gear.
The utility model discloses super little rubbing crusher of central feed, inertia grading improves rubbing crusher's crushing ability: the grinding surface on the gear ring is increased, and the hammer head with the grinding surface is matched with the gear ring, so that the grinding yield of the ultrafine grinder is greatly improved, and excessive circulation of materials between the grinding mechanism and the grading mechanism is avoided.
The utility model discloses center feed, the hierarchical super little rubbing crusher of inertia replace impeller grading mechanism with inertia grading mechanism. Traditional impeller grading mechanism and superfine rubbing crusher integration are as an organic whole, compact structure, and hierarchical effectual. However, the crushing efficiency is affected by mutual interference between the crushing disc and the impeller classifier in the operation process. In particular, the shredder plate cannot be started before the impeller classifier, and once an accident occurs, the shredder plate must be stopped and the impeller classifier started. Meanwhile, the impeller classifier is provided with a variable frequency motor with the power of the main motor 1/10, so that kinetic energy consumption exists. The inertia grading mechanism is based on the aerodynamic principle, utilizes the inertia of materials to grade, has simple structure and does not consume power.
The utility model discloses center feed, the hierarchical super little rubbing crusher of inertia, the rubbing crusher tup has increased face of attack and side lapping surface area, has changed the face of attack angle, has add the face of lapping, uses with the ring gear cooperation that has the face of lapping, has improved super little rubbing crusher crushing effect greatly.
The utility model discloses center feed, inertia hierarchical super little rubbing crusher, the tup medial surface is designed into convex, has cancelled the rear surface, has avoided the air current to form the torrent at the tup afterbody, makes the material smoothly lead hou mian tup, has improved crushing efficiency.
The utility model discloses center feed, the hierarchical superfine pulverizer of inertia, the tup body is equipped with the spout, adopts slider and spout matched with mounting means. The mounting hole 61 is arranged on the crushing disc, the mounting bolt is screwed into the screw hole of the sliding block from the lower part, and the hammer head body is fixed on the crushing disc by the friction between the sliding block and the shoulder part of the sliding groove. As long as the bolt is slightly unscrewed, the hammer head body can be taken out of or put into the front surface, and the operation is convenient and fast.
The utility model discloses center feed, the hierarchical super little rubbing crusher of inertia, the tup mounting hole is established below crushing dish, does not contact with the material, has avoided the deposit of material in the mounting hole.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. All the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.

Claims (4)

1. The utility model provides a super little rubbing crusher of center feed, inertia grading which characterized in that:
comprises a machine body, wherein a feeding mechanism (1) is arranged at the upper part of the machine body;
a crushing mechanism (3), a grading mechanism (2) and a base (4) are sequentially arranged below the feeding mechanism (1);
the feeding mechanism (1) is arranged at the top of the machine body;
the feeding mechanism comprises a buffer hopper (5), wherein feeder silencers (6) are arranged on two sides of the buffer hopper (5), and are surrounded by an iron plate, and sound-absorbing materials (61) are attached to the periphery inside the feeder silencers; a double-roller feeder (7) and a feeding pipe (8) are arranged below the buffer hopper (5);
the double-roller feeder comprises a machine shell (9), a fast roller (10), a slow roller (11), a feeding motor (12) and a gear set (13); the feeding motor (12) is connected with one end of the fast roller (10) through a belt pulley group;
the other end of the fast roller (10) is connected with one end of the slow roller (11) through a gear set (13);
the crushing mechanism (3) comprises a crushing chamber (15), a gear ring (16), a hammer head (17), a wear-resistant lining plate (18) and a crushing disc (19); the gear ring (16) is fixed on the inner side of the side wall of the crushing chamber (15);
the longitudinal section of the single gear ring piece is in an inverted L shape, the longitudinal inner side surface is a side grinding surface, and the lower surface of the horizontal plane is an upper grinding surface;
the side grinding surface is provided with a longitudinal groove which is longitudinally inclined upwards and backwards, namely deviates from the movement direction of the hammer; the upper grinding surface is provided with a horizontal groove which is parallel to the radial direction of the crushing disc;
alloy strips are arranged on the windward sides of the longitudinal grooves and the horizontal grooves;
the hammer head body is in a five-surface shape;
the hammer head is a striking surface facing to the running direction of the hammer head, and the striking surface is inclined forwards and towards the gear ring direction simultaneously;
the surface of the hammer head opposite to the gear ring is a side grinding surface of the hammer head;
the side grinding surface of the hammer head is provided with a continuous sawtooth-shaped longitudinal groove which inclines forwards and is parallel to the striking surface;
the upper surface of the hammer head is an upper grinding surface,
the upper grinding surface is provided with a sawtooth-shaped transverse groove which is transversely parallel to the striking surface;
one surface of the hammer head body corresponding to the side grinding surface is the inner side surface of the hammer head;
the inner side surface of the hammer head is arc-shaped, so that the tail part of the hammer head body is in a ship bow shape;
the center of the hammer head body is provided with a sliding chute, the cross section of the sliding chute is in an inverted convex shape, the front part of the sliding chute is a cylindrical surface, and the sliding chute penetrates through the surface of the hammer head body backwards and downwards;
the shoulder plane of the chute is a mounting surface;
a sliding block is arranged in the sliding groove; the cross section of the sliding block is rectangular, and the shape and the size of the sliding block are matched with the shapes of the upper part of the sliding groove and the tail part of the hammer head body;
the wear-resistant lining plate (18) is provided with a first guide strip (33), and an alloy block is embedded below the striking surface of the hammer head;
a material distributing umbrella (20) is arranged at the axis position of the upper surface of the crushing disc (19), the material distributing umbrella (20) is matched with the bell mouth (14), and a second guide strip (34) is arranged on the upper surface;
the material separating umbrella (20) and the bell mouth (14) form an annular feeding channel;
the grading mechanism (2) comprises a top cover (21), a guide ring (22) and an upper cover (23);
the top cover (21) is annular, is surrounded by a semicircular pipe with an opening at the lower part, and is arranged above the crushing chamber (15);
the guide ring (22) is arranged above the gear ring (16) and is divided into an inner ring and an outer ring;
a channel (25) is formed between the inner ring and the outer ring;
the upper cover (23) is arranged above the top cover (21), an air outlet (24) is arranged on the side surface, and a double-roller feeder (7) is arranged on the top.
2. The center-fed, inertia-graded micronizer of claim 1, wherein:
the surfaces of the fast roller (10) and the slow roller (11) are wavy, and fine tooth wires forming a certain angle with the axial direction are arranged on the wavy surfaces;
the wave crests and wave troughs of the fast roller (10) and the slow roller (11) are arranged in a staggered manner and are meshed with each other;
the upper end of the feeding pipe (8) is connected with the double-roller type feeder (7), and the lower end is made into a bell mouth (14).
3. The center-fed, inertia-graded micronizer of claim 1, wherein:
the gear ring (16) is formed by splicing 8 identical gear ring single pieces end to form a complete annular gear ring.
4. The center-fed, inertia-graded micronizer of claim 1, wherein:
the center of the crushing disc (19) is coincident with the center of the crushing chamber (15).
CN201921438652.8U 2019-08-31 2019-08-31 Ultrafine grinder with central feeding and inertia grading functions Active CN210935181U (en)

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CN201921438652.8U CN210935181U (en) 2019-08-31 2019-08-31 Ultrafine grinder with central feeding and inertia grading functions

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116273334A (en) * 2022-06-23 2023-06-23 广东众大智能科技有限公司 Graphite grinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116273334A (en) * 2022-06-23 2023-06-23 广东众大智能科技有限公司 Graphite grinder
CN116273334B (en) * 2022-06-23 2024-04-02 广东众大智能科技有限公司 Graphite grinder

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