JP3001839B2 - Crushing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher used for crushing large hard cobblestones and the like that are not suitable for utilization, for utilizing aggregates, and for crushing concrete waste and asphalt waste materials. is there.

[0002]

2. Description of the Related Art A conventional crusher divides a large crushed material into 300 mm by a crusher or the like, and then performs primary crushing. There is known a system in which a secondary material is subjected to a multi-step process such as secondary crushing, crushing in order, and then sieving with a sorting screen to obtain a recycled material.

[0003] The crushing power is always required to have a large capacity, and it is known that crushing efficiency is low with respect to power consumption.

[0004] Further, in the event of an emergency stop of the plant during the crushing operation, the primary and secondary crushers and the like require many devices, both electrically and mechanically, so that the material to be crushed does not remain inside the devices. The cause of the trouble is known as the current situation.

[0005] Conventional crusher teeth are often bolted, welded, etc., and it is known that advanced technology for preventing loosening and falling of the teeth is required. The tip shape is often acute and the crushing efficiency is reduced due to only partial damage or partial wear of the tooth tip, which necessitates the reversal and replacement of the teeth at an early stage, which is disadvantageous in crushing efficiency and economy. Known as a lot.

Further, when crushing an object to be crushed by a conventional crusher, a large amount of powdery particles due to excessive crushing other than the set particle size are generated, and the inside of the crusher is meaninglessly worn by the powdery particles. It is known.

In addition, conventional crushing equipment has many disadvantages in terms of pollution, such as noise, vibration, and dust dispersion during crushing and sorting, and is inconvenient for social and economic reasons, such as difficulty in equipment near the city, and is a great brake for the development of recycling. It is known that

[0008]

The natural hard boulders and the like are high-quality materials, but the conventional crushing method involves an increase in the size of the crusher itself, and the crushed material is a hard sphere. It will not be crushed by riding, causing early wear of the tooth tips, overload of the power mechanism, and damage to the crusher itself.It is considered inappropriate for crushing processing by removing it from the crusher and requires a pre-sorting process. And has been. In addition, in the crushing of concrete waste and asphalt waste, if crushed materials with greatly different properties are crushed by a single crusher, the structure of the crusher is often biased. There were many unreasonable ways to crush the water efficiently. In the conventional crushing method, large-sized crushed materials to be carried into the factory are divided into large, medium, crushed particles, set classification and many other processes, and ancillary equipment related to crushing equipment that does not match the value of recycled materials Has been needed. When replacing the teeth of a crusher, advanced technology is required, and the wear balance of the teeth, which corresponds to the crushing amount of the crushed material, is significantly different. To replace, 60 of the teeth themselves
% To 80% are wasted, and the conventional crusher requires a large amount of power only at the start of no-load because of the high-speed coasting rotation type and the shaft rotation type. In addition, since the crusher itself is hermetically closed and hides a fine structure, advanced technology and much time are required for inspection, maintenance, repair, and the like. Conventional crushers do not want to stop while the crushed material remains in the crusher, so many auxiliary equipment other than crushing purposes, such as an emergency discharge bypass, has been required. In addition, a crusher that generates noise, vibration, dust, etc. when crushing the crushed object requires expensive equipment such as a soundproof building, a solid foundation, and a dust collector.

[0009]

A large crushed object (thickness = 400 × large = 1000 square round) is initially crushed by increasing the interval between the front crushing target front wall and the initial crushing position of the main crushing teeth. The ratio of the diameter of the sprocket fixed to the rotating body to the diameter of the equally dividing tip of the main crushing teeth is 2: 1 and the power is reduced to one of the power of the conventional crushing machine by using a two-time reduction rotation mechanism.
The rotating body is rotated with a power of / 4 or less to crush large crushed objects. Due to the spherical shape of the main crushing front wall, the circular shape of the main crushing teeth, the movement of the main crushing teeth, and the rotating mechanism described above, even if the crushing machine is full of crushed materials inside the crushing machine, the crushing machine is started, stopped, and restarted. Start. The sharp angle at the tip of the crushing tooth of the crushing machine, the direct rotation of the rotating body of the tooth is stopped, and the abrasion of the tooth tip and loosening of the tooth, prevention of falling off and the impact of crushing on the main crushing front wall and the main crushing tooth are reduced. , To minimize overload on the rotating mechanism,
The main crushing tooth is a crescent-shaped tooth with a circular tip on the outer periphery of the boss cylinder, and is fixed in a zigzag in pairs to form one crushing tooth.
A plurality of main crushing teeth are arranged on the main crushing axis of the rotating body, and the main crushing teeth are moved forward and reverse freely and moved left and right only in a direction parallel to the main crushing axis regardless of the fixed rotation of the rotating body to remove large crushed objects. The teeth are easily crushed while escaping to a position suitable for crushing. Below the crusher, arrange multiple axes based on the particle size setting,
A groove is formed on the arranged shafts in the cylinder based on the setting of the crushing particle size, a plurality of roll teeth that freely rotate in the normal and reverse directions are arranged, and the set particle size is crushed and discharged. It consists of the arrangement of spheres on the front wall for the purpose of main crushing, the shape of the tip of the crushing teeth for the purpose of main crushing, free rotation in the forward and reverse directions, and the arrangement of individual crushing teeth that move left and right only in the direction parallel to the main crushing axis The rotating body is rotated at a very low speed by a rotating mechanism, and the impact sound and vibration generated when crushing a large crushed object is reduced by the point contact pressure of the sphere on the front wall, the line contact pressure of the main crushing teeth, and the escape of the tooth tip. By the action, it is suppressed to a minimum, and dust scattering and diffusion at the time of crushing can be prevented without generating wind since the rotating body is rotated at a very low speed.

(Operation) In the crushing machine of the present invention, single crushed material such as natural large hard cobblestone, large concrete garbage, large asphalt waste material and the like and mixed crushed material can be continuously crushed in a set amount, and the main crushing teeth 8 and roll teeth can be processed. Both the 11a are non-driven and free-rotating freely rotating and circular teeth, so there is no inconvenience of tooth replacement due to partial damage to the tip of the tooth and only partial wear and tear, and the tooth function is fully demonstrated. , Utilization will be replaced after the tooth tip is completely worn. Both the main crushing teeth 8 and the roll teeth 11a are different from those directly fixed to the rotating body 6 by bolts, key grooves, welding, etc., and are merely inserted into each shaft. The main crushing teeth 8 and the roll teeth 11a are simply pulled out in the right and left directions of the rotating body 6 and the machine housing 2.
Both can be detached from the main crushing shaft 7 and the secondary crushing shaft 10 so that they can be removed from the main crushing shaft 7 and the secondary crushing shaft 10, and the attachment and detachment of the main crushing teeth 8 and the secondary crushing teeth 11 are very easy. The indirect crushing effect between the crushed objects is large, and the utilization time of the front wall 3, the main crushing teeth 8, the roll teeth 11a, etc. is prolonged, and the economic effect is increased. Unlike the intense crushing method such as high-speed and instantaneous impact crushing of the crushed object, the crushed object is subjected to ultra-low-speed rotary compression crushing in the deep portion where the hopper 1 and the crusher housing 2 are fully loaded, so that noise and vibration are generated. It is an object of the present invention to provide a high-value crusher capable of suppressing the generation of dust and the like, eliminating the need for the auxiliary equipment other than the crushing treatment, and greatly reducing the construction cost. Next, embodiments of the present invention will be described in detail with reference to the drawings.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, in FIGS. 1 and 2, reference numerals 6 and 6 denote main shafts 5 extending in the left-right direction in a casing 2 leading to an upper hopper 1.
Are rotatable one-piece left and right rotatable members interposed in the low-speed rotation drive unit P supported at both ends. Then, both ends are fixed between the left and right rotating bodies 6, 6 to form a plurality (four).
Main crushing shafts 7 are provided respectively. Further, a plurality of sectional crushing teeth 8a in which a crescent-shaped raised tooth 16 is attached to the outer periphery of the boss cylinder 15 in three equally staggered Futaba can freely rotate forward and reverse with respect to the main crushing shaft 7 and move left and right only in the axial direction. The main crushing teeth 8 are provided so as to be loosely engaged.
Further, a plurality of hard spheres 4 for mainly crushing the object to be crushed are arranged on the front wall 3 of the crusher. In this case, the plurality of hard spheres 4 are arranged on the surface of the front wall 3 so as to be substantially half-exposed, and the large crushed object is divided into the main crushing teeth 8 of the rotating body 6 and the spheres 4 of the front wall 3 of the crusher. And can be crushed easily and with reduced labor by receiving a point contact pressure at the spherical surface (point). 3a is a wear-resistant plate. A plurality of roll teeth 11a that can be moved in the axial direction only in the left-right direction and freely rotate forward and backward are provided on the lower crushing shaft 10 for setting and discharging the size of a plurality of crushed objects in the left and right direction at the lower portion inside the casing 2. A plurality of sub-fractured teeth 11 arranged in a plurality are provided. Further, a chain gear 9 integrated with the rotating body 6 from the reduction gear 12 via a chain 13 and from the intermediate chain via a chain 14.
Super low-speed rotation drive unit P
Is configured.

[0012]

【The invention's effect】

(1) When a large crushed object is narrowed between the hard steel ball of the wear-resistant plate on the front wall of the main body and the crushing teeth and receives pressure, the shape and movement of the crushing teeth (forward / reverse automatic rotation, left / right limited movement) Not only pressure but also twisting action is exerted on large crushed materials. Large contact is caused by point contact (concentration) pressure with hard steel balls and compression twisting action generated between crushing teeth and hard steel balls. Crushed materials can be easily and easily crushed. (2) In addition to the direct crushing of the crushing teeth and the large and medium-sized crushed objects on the front and rear walls of the main body, the crushing teeth are advanced at a low speed, and the crushed masses are constantly compressed and collided with each other to perform indirect crushing. (3) Since the peripheral speed of the rotating body is very low and the tip of the crushing teeth is circular and wide, the amount of crushed material having a particle size equal to or less than the set particle size of the crushed object is extremely small. (4) It is possible to start, stop, and restart the hopper and the main body in a state where the crushed material is fully loaded in the main body. (5) Since the ratio of the diameter of the rotating body to the diameter of the drive sprocket is 1: 2, the lever function is large, and the impact and load during crushing are small, so that the power is small.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a crusher of the present invention.

FIG. 2 is a plan view of a main part of the crusher of the present invention.

FIG. 3 is an enlarged side view of a main part of the crusher of the present invention.

FIG. 4 is a perspective view of a sectional crushing tooth of the crushing machine of the present invention.

FIG. 5 is a perspective view of the roll teeth of the crusher of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hopper 2 Case 3 Front wall 3a Wear-resistant plate 4 Hard sphere 5 Main shaft 6 Rotating body 7 Main crushing shaft 8 Main crushing tooth 8a Sectional crushing tooth 9 Chain gear 10 Secondary crushing shaft 11 Secondary crushing tooth 11a Roll tooth 12 Low speed motor 13 , 14 Chain adjustment 15 Boss cylinder 16 Raised teeth P Low-speed rotation drive unit

Claims (6)

(57) [Claims] 1. A rotatable left-right rotating body interposed in a low-speed rotation drive unit supported on both ends of a main shaft installed in the left-right direction in a machine case communicating with an upper hopper, and a rotatable left-right rotating body disposed between the left-right rotating body. A plurality of main crushing shafts, and a plurality of sectional crushing teeth with crescent-shaped raised teeth attached to the outer periphery of the boss cylinder in a plurality of equally spaced pieces by Futaba Chidori are freely rotated and axially left and right on the main crushing shaft. The main crushing teeth that are loosely fitted and engaged so as to allow limited movement, the front wall on which a plurality of hard spheres for main crushing of the crushed object are provided, and the plurality of A non-driven, non-driving, freely movable, freely rotatable, axially movable, non-driven, crushed tooth is provided for each of the crushed teeth for setting and discharging the particle size of the crushed material. In addition, the main crushing teeth rotate freely forward and reverse between the The crushed material is crushed by setting the particle size while rotating freely in both forward and reverse directions according to the crushing situation of the crushed material, and the crushed material is discharged from the gap between the roll teeth that also serves as a sorting screen. And crusher. 2. The method according to claim 1, wherein, unlike applying power to the main shaft of the rotating body, the main shaft only supports the rotating body, and the rotating body is rotated by the low-speed rotation driving unit.
Crusher as described. 3. A plurality of hard spheres protruding from the front wall of the crusher in a substantially half-projected state are arranged, and the large crushed object is narrowed by the main crushing teeth of the rotating body and the sphere of the front wall of the crusher. The crushing machine according to claim 1, wherein the crushing machine is characterized in that crushing can be easily and labor-saving by receiving a point contact pressure on a surface (point). 4. The crushing teeth are narrowed by the main crushing teeth and the sphere of the front wall of the crushing machine, so that the crushing teeth do not repel the excessive impact and overload before reaching the excessive impact on the tooth tip and the overload on the rotating mechanism. , Irrespective of the fixed rotation of the rotating body, the free circular rotation of the rotating body and the limited left and right movement in the direction parallel to the main crushing axis allow the teeth to escape from the crushed object to a position suitable for crushing, and form a circular line of teeth. The crusher according to claim 1, wherein the crusher has a feature of compression crushing. 5. The roll teeth for setting the particle size below the crusher have a concave groove formed in the cylinder, a plurality of shafts based on the set particle size are arranged below the crusher, and a plurality of roll teeth are arranged on the arranged shaft. The crushing machine according to claim 1, wherein the crushing machine is arranged in a staggered manner and has a feature that the crushing of the object to be crushed has both a set particle size crushing and a sorting screen. 6. The front wall of the crusher and the crushed objects pressed by the crushing teeth by the ultra-low-speed rotation of the rotating body other than the direct crushing of the large crushed object by the crushing teeth, are constantly compressed and collide with each other. 2. The crusher according to claim 1, wherein the crusher has a feature of indirect crushing.