JPH01274850A - Crusher - Google Patents

Abstract

PURPOSE:To restrain vibration without giving swirling motion by rotatably disposing 1st and 2nd crushing means around the axis of vertical or horizontal direction and forming a crushing chamber between both crushing means so as to be gradually narrowed to the discharge side. CONSTITUTION:A 2nd rotor 56 is revolved at high seed around the axis 84 by a driving mechanism 86 and the material to be crushed, such as stone or coal, is charged into a hopper 62. When the material to be crushed is caught between the projected surface 68 and the projection surface 72 of the crushing chamber 76 formed by a 1st rotor 26 and the 2nd rotor 56, the 1st rotor 26 is revolved following the revolution of the 2nd rotor 56. In this case, as the 1st and 2nd rotors 26, 56 are revolved with an eccentric distance (e), such a relative motion is generated that both rotors approach each other in a certain location and leave each other in other location, and the material to be crushed is effectively crushed when the clearance between both rotors is narrowed, and moved to the side of a gradually narrowed discharge opening 78 of the crushing chamber 76 by the centrifugal forces of both rotors.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a crusher for crushing stones, coal, etc., and particularly relates to a crusher suitable for crushing flannel crushed materials.

(Prior Art) As one type of crusher for crushing objects to be crushed, there are crushers such as a crusher and a cone crusher. Our crusher includes a cone cape, a conical rotor arranged in an eccentric pivoting motion within the cone cape, and a drive mechanism for rotating the rotor. During crushing, the rotor rotates at a predetermined speed relative to the cone cape, thereby suppressing the object to be crushed against the inner surface of the cone cape. As a result, the material to be crushed is compressed and destroyed.

(Problems to be Solved by the Invention) However, in the conventional crusher, since the rotor is forced to rotate, vibrations are large.

SUMMARY OF THE INVENTION An object of the present invention is to provide a crusher that does not require rotational motion to crushing means.

(Means for Solving the Problems) The crusher of the present invention has a first crusher rotatable around a first axis.
a crushing means, and a second crushing means for crushing the object to be crushed together with the first crushing means, which defines a crushing chamber for crushing the object to be crushed in cooperation with the first crushing means. do,
a second crushing means capable of rotating around a second axis parallel to or inclined to the first axis; and guiding the object to be crushed into the crushing chamber. means and
and a drive means for rotating the first or second crushing means.

In a preferred embodiment, each crushing means includes a rotor and the guiding means includes a hopper. Further, in one of the preferred embodiments, the crushing means is arranged rotatably around an axis extending in the vertical direction. In another preferred top embodiment, the crushing means is arranged rotatably around an axis extending in the horizontal direction.

Said first and second crushing means 11 are arranged to create first and second crushing surfaces 11 which cooperate with each other to define a crushing chamber; The surfaces are preferably convex and concave so that their distances gradually decrease from the intake IZI for the crushed material to the outlet for the crushed granules. In this case, the first and second fracture surfaces can be hemispherical or conical i'tg.

Preferably, the apparatus further includes support means for supporting the first crushing means and the guide means and defining a space for receiving crushed granules from the crushing chamber. In this case, the support means includes a first member that supports the first crushing means, a second member that is removably coupled to the first member, and a second member that supports the first and second members. It is preferable that the second crushing means is supported by the guide means or the second support member.

The crusher also includes a 7gl support means for supporting the guide means, and an annular second support means for rotatably supporting the first crushing means, the second support means being connected to the first support means from the first axis. a second support means angularly rotatably supported about a displaced third axis; and a second support means relative to the first support means.
and means for adjusting the angular rotational position of the support means. In this case, the adjustment means includes a spring that applies a force to the second support means to rotate it in a direction opposite to the direction of rotation of the first crushing means, and an arm attached to the second support means; It is preferable that the first support means include a collar that can be engaged with the arm.

The crusher further includes first and second crushing means arranged such that the first and second axes are parallel to each other, and granular material outlets of the first and second crushing means are defined. In this case, it is preferable that the part 111f defining the particulate matter notification L is a plane perpendicular to the first and 1g2 axes.

(Operations and effects of the invention) One of the first and second crushing means is forcibly rotated by the driving means, and the object to be crushed that has been guided into the crushing chamber engages with both crushing means, so that one of the first and second crushing means is forcibly rotated. It is rotated following the rotation of the crushing means. At this time, since the first and second axes are crossed with each other (-center), both crushing means are rotated with a displacement of η, and both crushing means are rotated by a common drive means or a different 5. When at least one of the crushing means is rotated, the first and second crushing means are rotated so as to be forcibly rotated by the driving means. A relative movement occurs between the two crushing means such that some parts of the surrounding area approach each other and other parts move apart.As a result, the object to be crushed becomes
After being pinched by the first and second crushing means, it is crushed by the relative movement of both crushing means.

According to the present invention, since the first and second crushing means are only rotated about the first and second axes, respectively, and do not perform a pivoting motion, the first and second crushing means impart a pivoting motion to the crushing means. Vibration is significantly lower than conventional crushers.

In the crusher of the present invention, it is preferred that both crushing means be rotated at high speed in the same direction. If you do this,
Since the objects to be crushed and the crushed granules are also rotated at high speed, a large centrifugal force acts on the objects to be crushed and the granules7.
As a result, the materials to be crushed and the granular materials are forcibly moved.

For this reason, the processing capacity is higher compared to conventional equipment that allows crushed materials to fall into and out of the crushing chamber by gravity.
In addition, it is possible to reduce the particulate matter notification [1] in the crushing room.

According to the crusher of claim (2), since the object to be crushed easily enters between the first and second crushing surfaces, the object to be crushed can be reliably crushed, and the processing capacity can be improved to the next level. do.

According to the crusher of claim (3), since the crushed granules are received by the support means, it is possible to prevent the granules from scattering, and the outlet for the granules can be arranged around the crushing chamber. Can be placed in any direction.

According to the crusher of claim (4), the third crusher has an appropriate thickness dimension.
By using the members, the distance between the first and second crushing surfaces and the distance between the granulate outlets of the crushing chamber and the first and second . The relative positional relationship of the crushing means can be changed.

According to the crusher of claim (5), the second support means is
rotation about the axis changes the angular rotational position of the second support means relative to the first support means, resulting in a change in the displacement of the first and second crushing means. Therefore, the displacement amount of both crushing means can be easily adjusted, and the processing capacity can be adjusted according to the type of the object to be destroyed by using the stiffness 2.

According to the crusher of claim (6), when the load acting on the drive means is large, the amount of displacement of the first and second crushing means becomes small, and when the load is small, the amount of displacement becomes small. The processing capacity is automatically adjusted according to the type, size, amount, etc. of the crushed material, and the optimum processing efficiency is always maintained.

According to the crusher of claim (7), the intervals between the respective parts around the first and second axes of the granule outlet are constant.

With the crusher of claim (8), even if the displacement amount of the first and second crushing means is changed in
Also, the distance between each part in C around the second axis does not change.

(Actual hb example) Embodiments of the present invention shown in the drawings will be described below.

The vertical strike crusher 10 shown in FIG. 1 includes a cylindrical main body 12. As shown in FIG. The main body 12 includes a cylindrical main body part 14 and flange parts 16.18 provided at both ends of the main body part in the axial direction. The flange portion 16 is attached to the frame 20 with a plurality of bolts.

The main body 12 is provided with a plurality of arms 22 extending inward from the inner surface of the main body portion 14, and a boss 24 is fixed to the arms. The boss 24 and the first rotor 26 are arranged so that their axes are in the vertical direction.

Attached to the boss 24 and the first rotor 26 are retainers 30 and 32 for the bearing 28, respectively. The bearing 28 is a crossed roller bearing in the illustrated example.

A chute 34 is attached to the lower flange portion 16 to receive crushed particles and granules. A cylindrical casing 36 is disposed on the upper flange portion 18 so as to extend in the vertical direction.

The casing 36 has a cylindrical main body 3 that extends in the vertical direction.
8, a flange portion 40 provided at the lower end of the main body portion, a flange portion 42 provided inward at the −L end of the main body portion 38, and a flange portion 42 provided downwardly and inwardly from the lower end portion of the main body portion 38. The lower flange portion 40 faces the flange portion 18 of the main body 12 via a ring 48, and the axis of the casing 36 and the axis of the main body 12 are aligned. , is removably fixed to the main body 12 by a plurality of bolts. The protrusion 44 is fitted into the upper part of the main body 12.

A bearing receiver 50 is attached to the upper part of the casing 36 with a plurality of bolts.

The bearing receiver 50 includes a boss portion 52 and a flange portion 54 extending outward from the boss portion.
It is attached to the casing 36 at the flange portion 54 so that the axis thereof is in the vertical direction.

A cylindrical second rotor 56 is rotatably attached to the boss portion 52 via a bearing 58.
A cover 60 that protects the hair ring 58 and a hopper 62 that receives objects to be crushed are attached by a plurality of bolts. In the illustrated example, the hair ring 58 is a cross roller bearing, and is attached to a bearing holder 64 attached to the boss portion 52 and the second rotor 56 (-j). 52 and the second rotor 56.

The second rotor 56 is spaced above the first rotor 26. The first rotor 26 has a conical convex surface 68 and a flat 1-direction surface 7 following the base of the convex surface.
0 on the second rotor 56 side. In contrast, the second rotor 56 has four conical surfaces 72 and a flat downward facing surface 74 following the lower end of the concave surface on the side of the first rotor 26 .

The first and second rotors 26,56 define an annular crushing chamber 76 by a convex surface 68 and a concave surface 72, and a surface 70.74.
are arranged so as to define a forming lower 8 for granular materials. The apex angle of the convex surface 68 is larger than that of the four surfaces 72. Therefore, the distance between the convex surface 68 and the four surfaces 72 gradually decreases from the object receiving opening into the crushing chamber 76 toward the forming lower 8 .

70 and 74 are perpendicular to the axis 80 of the main body 12 and the casing 36, that is, the axis 80 of the fitting portion of the two. Therefore, the intervals between the respective parts of the modified lower 8 around the axis 80 are constant. However, the spacing between the lower layers 8 can be changed by placing a ring 48 of an appropriate thickness between the main body 12 and the casing 36.

The first rotor 26 is rotatably arranged around an axis 82 that is displaced in one direction by a distance of 1/92 with respect to the axis 80 . In contrast, the second rotor 56 has an axis 80
It is rotatably arranged around an axis 84 that is displaced by 1/2 e in the direction and distance described above. this!
The mounting of the casing 36 to the main body 12 around the axis 8° is performed by changing the position of the casing 36 to change the eccentricity of the first and second rotors 26, 56 between 0 and e. I can do it. In addition, the axis line 80.82°84 is
They may also be slightly, preferably equiangularly inclined to each other.

The drive mechanism 86 includes a rotating mechanism 88 including a motor and a speed reducer, a pulley 90 fixed to the output shaft of the rotating mechanism, a pulley 92 fixed to the second rotor 56, and a pulley 92 wound around both pulleys 90, 92. A plurality of belts 94 are hung thereon. The rotation mechanism 88 is supported by a stand 96 fixed to the casing 36 with a plurality of bolts.

Note that instead of rotating the second rotor 56, the first rotor 26 may be rotated, or both rotors 26, 56 may be rotated by the same drive mechanism or by different drive mechanisms.

In use, the second rotor 56 is aligned with the axis 8 by a drive mechanism 86.
40 at high speed, and the material to be crushed is thrown into a hopper 62. The first rotor 26 is not rotated while the object to be crushed is not engaged with the convex surface 68 and the four surfaces 72. However, when the object to be crushed is sandwiched between the first and second rollers 26, 56, the first rotor 26
It is rotated following the rotation of 6.

When both the rotors 26, 56 are rotated, the first and second rotors 26, 56 rotate eccentrically by a distance #ie, so that the two rotors 26, 56 are mutually dislocated at a certain portion around the axis 82, 84. A relative movement occurs between the two rotors 26.58, approaching each other and moving away from each other at certain locations. As a result, the object to be crushed held between the two rotors 26, 56 is crushed by the two rotors 26, 56 when the distance between the two rotors 26, 56 is in the process of narrowing.

The crushed granules move out of the crushing chamber 76 to 178 due to the centrifugal force caused by the rotation of the second rotor 56 or both rotors 26, 56, move from the output lower 8 into the main body 12, and finally falls into chute 34.

According to the crusher 10, the first and second rotors 26, 5
6 are only rotated around axes 82 and 84, respectively, so there is less vibration than in a conventional crusher in which the rotor makes a pivoting motion, and there is no need to provide a counter for vibration damping. Furthermore, since the crushed granules are forcibly discharged from the crushing chamber 76 by centrifugal force, the processing capacity is significantly higher than in conventional crushers in which the granules are dropped from the crushing chamber by gravity. Furthermore, since the interval between the output lowers 8 is constant, the interval between the output lowers 8 can be made smaller than in a conventional crusher in which the rotor is given a rotating motion.

The crusher 100 shown in FIGS. 2 and 3 has an axis 10 extending horizontally between 731 and the second rotor 26,
It is assembled horizontally so that it can be rotated around 2,104.

The crusher 100 includes a body 108 that defines a space 106 that receives particulate matter emitted from the crushing chamber 76 defined by both rotors 26.56. The main body 108 is installed on a pedestal 110 at a plurality of support sections extending in the t direction from a portion that defines the space 106 .

The main body 108 has openings at both ends in the water east direction. A support ring 11 that rotatably supports the first rotor 26 by a bearing 112 is provided at one open part of the main body 10B.
4 is fitted. Support ring 114 is removably attached to main body 108 via ring 116 with a plurality of bolts. The support ring 114 includes a first
A drive mechanism 118 is supported that rotates the rotor 26 about the axis 102.

Note that instead of rotating the first rotor 26 by the drive mechanism 118, the second rotor 56 may be rotated, or both rotors may be rotated by a common or different drive mechanism.

In the illustrated example, the hair ring 112 is a cross roller bearing, and the support ring 1 is supported by a bearing presser 120 attached to the support ring 114 and a bearing presser 122 attached to the second rotor 5G and having a diameter of μ.
i4 and the second C-56 are prevented from leaving.

In the other opening of the main body 108, the second rotor 56 is rotatably supported by a bearing 124, and a cover 126 that protects the bearing 124 and a hopper 128 that receives crushed objects are connected by a plurality of bolts. It's hard to put on a la. The fly 28 is opened upward so as to receive the material to be crushed from above, and guides the material to be crushed into the crushing chamber 76.

The hair link 124 is also a cross-row hairer bear link, and a hair ring press M, 132 is attached to the bearing holder 130 attached to the main body 108 and the second rotor 56 to connect the outer body 108 and the second rotor. Preventing withdrawal from 5G.

? X of bar 1] - rotation of 26 @ line 1 () 2 is the main body i0
Axis of the fitting part between 8 and support ring 114 x341s>4
t, e of distance 2Ij is also displaced to one side. In contrast, the second rotor 56 is at a distance of 2 with respect to the axis 132.
It is displaced to the other side by an amount of e. However, the axis 134
By changing the position of the attachment of the support ring 114 to the body 108 around the center, the eccentricity of the first and second rotors 26, 56 can be changed between O and e. In addition, in the case of the crusher 100, the axis lines 102, 1
04,134 may be tilted slightly, preferably equiangularly, to each other.

The surface 70° 74 of the first rotor and second rotor 26.56 is
perpendicular to axis 134. Therefore, the distance between each part of the extension 178 around the axis 134 is constant.

However, the spacing between the lower protrusions 8 can be changed by placing a ring 116 of an appropriate width between the main body 108 and the support ring 114.

In use, the first rotor 56 is driven by the drive mechanism 118 to l1
It is rotated at high speed around the illumination line 1θ4, and the material to be crushed is immersed in the hopper 1284. While the object to be crushed does not engage with the convex surface 68 and the concave surface 72, the second gluer 56
is not rotated. However, when the material to be shredded is caught between the first and second rollers 26.56, the second rotor 56 is rotated following the rotation of the first rotor 26.

When both rotors 26, 56 are rotated, the first and second rotors 26, 56 are eccentric by a distance Me and rotate at an angle of 1, so that one rotor 26, 56 is rotated at a certain point around the axis 102, 104. Then, a relative interlocking occurs between the two rotors 2.6.5B, such that one is close to each other and the other is apart from each other at some locations. As a result, the object to be crushed held between the rotors 2.6.56 is crushed by the rotors 26, 56 when the distance between the two rotors 26.56 is in the process of narrowing.

The crushed particulate matter is transferred from the crushing chamber 7G to the output lower 8 by centrifugal force due to the rotation of the tenth rotor 26, and is then transferred from the crushing chamber 7G to the output lower 8 and the final Target
, 2 spaces 106 U) The heat is out! Sign.

The crusher ioo has the same effect as the crusher 10, and since the rotational axes of both mouths 126 and 56 extend in the horizontal direction, the crusher height τ'' becomes smaller. Further, there is an effect that the eccentricity of the axes 102 and 104 and the interval between the protruding lower parts 8 can be easily adjusted.

4 and 5 show the first and second rotors 26,
An embodiment of a horizontal crusher 140 in which the amount of eccentricity of 56 is automatically adjusted is shown. The main body 108 of the crusher 140 includes a first main body 142 that rotatably supports the support ring 114 about the axis 134 and a second main body that supports the second rotor 56 rotatably about the axis 104. Section 144
It is divided into nine parts. The body parts 142 and 144 are removably connected by a plurality of bolts. A ring 116 is arranged between the main bodies 142 and 144 in order to change the interval between the lower protrusions 8.

The support ring 114 is connected to the first body portion 1421 . m supported first. Bearing 14
The first body part 142 has a bearing presser 1 which has been removed and has been recessed.
48 and the support ring 114, the first main rest part 142 is prevented from detaching from the support ring 114 by a bearing presser i50.

A sliding spring 152 is disposed between the first body portion 142 and the support ring 114.

-1) The center end of the coiled spring 152 is fixed to the support ring +141 by a plurality of screws, and the outer peripheral end is fixed to the first main body by index screws.

The support ring 114 has a displacement 41 of the inner rotor 26.56.
A pointer 154 is fixed. On the other hand,
, the bearing presser 14 fixed to the first main body part X42C
8 is provided with a stopper 156 on which the pointer 154 can come into contact, and a scale i58 on the IS side of the pointer 154. The hanging spring 152 is wound up by a predetermined amount in advance.7 When in use, the first rotor 56 is rotated at high speed around the axis 104 by the drive mechanism 118, and the materials to be crushed are delivered to the hoppers 12 & 3. 891 people. The object to be crushed is 1"2
The first rotor 26 is not rotated while the fingers 6B and the four surfaces 72 are engaged with each other. There is.

However, the object to be crushed is
The second rotor 56 is sandwiched between the first rotor 2 and the first rotor 2.
6 rotation (ζ is rotated by following.

When both rotors 26, 56 are rotated, the first and second rotors 26, 56 rotate eccentrically by a distance e, so that both rotors 26.56 rotate at a certain position around the axis 102.1o=t. , they approach each other, and in other parts, they approach each other.
A relative movement of separation occurs between the two.

As a result, the object to be crushed held between the inner rotors 26 and 56 is crushed by the two openings 26 and 5B when the distance between the two rotors 26 and 56 is narrowing.

? & When a crushed object is crushed, if a large load is applied to the first rotor 26, the drive mechanism ixa is
A reaction force acts on the drive mechanism 118 to rotate it in a direction opposite to the direction of rotation of the drive mechanism 118 (first counterclockwise direction in FIG. 5). As a result, the drive mechanism 118 is angularly rotated in the direction opposite to the rotational force direction of the first rotor 26 to a position where the reaction force, that is, the load, and the force of the helical spring 152 are balanced. As a result, the first and second rotors 26.56
The eccentricity of the rotor 26 is reduced, and the load acting on the first rotor 26 is reduced. The amount of eccentricity at this time is 1!5
It can be known from the scale value supported by 4.

The crushed granules are moved inside the crushing chamber 76 to the output lower 8 by the centrifugal force accompanying the rotation of the first port 26, and are then discharged from the crushing chamber 76.
178 and out of the crushing chamber 76, and finally into the space 10.
It is discharged from 6.

In addition to having the same effect as the crusher 140b crusher 100,
This has the advantage that the eccentricity H1 of the first and second rotors 26.56 can be automatically adjusted depending on the load acting on the first rotor 26.

Note that instead of providing the spring 152, the JtY needle 1
54 to the arm, the first and second rotors 26, 56
The support ring 114 may be manually rotated to a position where the eccentricity of the pointer 154 is a predetermined value, and the pointer 154 may be releasably fixed to the bearing receiver 148 so as to maintain that position. In this case, it is preferable that the pointer 154 be connected to the arm.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing one embodiment of the crusher of the present invention, FIG. 2 is a vertical cross-sectional view showing another example of the crusher of the present invention,
FIG. 3 is a sectional view taken along line 3-3 in FIG. 2, and FIG. 4 is a longitudinal sectional view showing still another embodiment of the crusher of the present invention.
FIG. 5 is a sectional view taken along line 5--5 in FIG. 4. 10.110,140: Crusher, 12, i08+ main body, 262 first rotor, 36: casing, 48, j, 16: Out [1 ring for spacing adjustment, 56: second rotor, 62: hopper , 68: convex surface, 72: concave surface, 76. crushing chamber, 78: outlet, 86.118: drive mechanism, 82. 84. 86. 102. 104. 134
: @ line, 114: Support ring, 152: Spiral spring, 154:
Guidelines, 156: Stotsuba. Agent Patent Attorney Nobuyuki Matsunaga Figure 6

Claims (8)

[Claims] (1) A first crushing means rotatable around a first axis, and a second crushing means that crushes the object to be crushed in cooperation with the first crushing means, the second crushing means crushing the object to be crushed. a second crushing means rotatable about a second axis parallel or oblique to the first axis, the second crushing means jointly defining a crushing chamber in which the crushed material is to be crushed; accept things,
A crusher comprising means for guiding the crusher into the crushing chamber and drive means for rotating the first or second crushing means. (2) The first and second crushing means each have first and second crushing surfaces that cooperate with each other to define the crushing chamber, and the first and second crushing surfaces each have a , are convex and concave such that their distances gradually decrease from the inlet for the crushed material into the crushing chamber towards the outlet for crushed granules. crusher. (3) Claim (1) further comprising support means for supporting the first crushing means and the guide means and defining a space for receiving crushed granules from the crushing chamber.
). (4) The support means includes a first member that supports the first crushing means, a second member removably coupled to the first member, and a second member that supports the first and second members. 4. The crusher according to claim 3, further comprising a third member replaceably arranged therebetween, and wherein the second crushing means is supported by the guide means or the second support member. (5) a first support means that supports the guide means; and an annular second support means that rotatably supports the first crushing means, the first support means being connected to the first axis; a second support means angularly rotatably supported about a third axis offset from said first support means; and means for adjusting the angular rotational position of said second support means relative to said first support means. The crusher according to claim 1, further comprising: (6) The adjustment means is configured to adjust the adjustment means to the second support means.
a spring that applies a force to rotate the crushing means in a direction opposite to the rotating direction of the crushing means; an arm attached to the second support means; and a spring attached to the first support means and engageable with the arm. The crusher according to claim 5, further comprising a stopper. (7) the first and second axes extend parallel to each other;
1. A crusher according to claim 1, wherein portions of the first and second crushing means defining the granular material outlets are parallel surfaces to each other. (8) The surface defining the particulate matter outlet is the first
and the second axis perpendicular to the crusher according to claim 7.