CA1313857C - Crushing machine - Google Patents
Crushing machineInfo
- Publication number
- CA1313857C CA1313857C CA000603135A CA603135A CA1313857C CA 1313857 C CA1313857 C CA 1313857C CA 000603135 A CA000603135 A CA 000603135A CA 603135 A CA603135 A CA 603135A CA 1313857 C CA1313857 C CA 1313857C
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- crushing
- axis
- substances
- rotary
- crushed
- Prior art date
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Abstract
ABSTRACT OF THE DISCLOSURE
A crushing machine comprises crushing means including a first rotary member rotatable about a first axis and a second rotary member for crushing substances to be crushed in cooperation with the first rotary member, the second rotary member being rotatable about a second axis parallel to or inclined to the first axis and defining, in cooperation with the first rotary member, a crushing chamber for crushing the substances to be crushed, guide means for receiving the substances and the guiding the received substances to the crushing chamber and drive means for rotating the first or second rotary member. Each rotary member includes a rotor, and the guide means includes a hopper. Each rotary member is disposed to be rotatable about a vertically extending axis or a horizontally extending axis.
A crushing machine comprises crushing means including a first rotary member rotatable about a first axis and a second rotary member for crushing substances to be crushed in cooperation with the first rotary member, the second rotary member being rotatable about a second axis parallel to or inclined to the first axis and defining, in cooperation with the first rotary member, a crushing chamber for crushing the substances to be crushed, guide means for receiving the substances and the guiding the received substances to the crushing chamber and drive means for rotating the first or second rotary member. Each rotary member includes a rotor, and the guide means includes a hopper. Each rotary member is disposed to be rotatable about a vertically extending axis or a horizontally extending axis.
Description
11 3~3g~ 1 CRUSHING MACHlNE
BACKGROUND OF THE INVRNTION
Field of the Inven-tion:
This inven-tion relates to a crushing machine for crushing stones and coals or -the like and, more particularly, to a crushing machine su:itable for collapsing massive substances.
Description oE -the Prior Art:
As one of crushing machines for collapsing substances to be crushed, there is provided a gyratory crusher, a cone crusher or like crushing machine. Each of these crushing machines includes a cone cave, a conical rotor disposed in the cone cave so as to permit the eccentric turning motion and a drive mechanism for rotating the rotor. When crushing is done, the rotor turns to the cone cave at predetermined speed to thereby press the subs-tances to be crushed against an inner surface of the cone cave. By so doing, the substances to be crushed are compressed and -then crushed.
However, since the conventional crushing machine as noted above makes the rotor turn forcibly, it is large in vibration.
SUMMARY OF THE INVENTION
It is an object of the present invention to ~3 ~ 3~3~3~
provicle a crush:ing machine which does not need -to give the turning motion to crushing means.
A crushing machine according to the present inven-tion comprises crushing means including a first ro-tary member rotatable about a first axis and a second ro-tary member for crushing substances to be crushed in cooperation with the first rotary member, the second rotary member being rotatable about a second axis parallel to or inclined to the first axis and defining, in cooperation wi.th the first rotary member, a crushing chamber for crushing the substances to be crushed, guide means for receiving the substances and then guiding the received substances to the crushing chamber and drive means for rotating the firs-t or second rotary member.
In a preferred embodiment, each ro-tary member includes a rotor, and the guide means includes a hopper.
Further, according to one of preferred embodiments, each rotary member is disposed to be rotatable about a vertically ex-tending axis. According to ano-ther preferred embodiment, each rotary member is disposed to be rotatable about a horizontally extending axisa The first and second rotary members have respectively first and second crushing surfaces for defining the crushing chamber in cooperation with each other. The first and second crushing surfaces are preferably formed into convex and concave surfaces respectively so that a distance between the first and :~ 3 ~ ~ ~ J, second crushing sur:Eaces is gradually reduced from an inlet for receiving the subs-tances to be crushed toward an outle-t for -the use of crushed granular substances.
In -this case, each of the first and second crushing surfaces may be formed into a semispherical shape or a conical shape.
Preferably, -the crushing machine fur-ther comprises support means for suppor-ting bo-th of the first rotary member and the guide means and deEining a space for receiving the crushed granular substances Erom the crushing chamber. In this case, the support means preferably includes a first support member for supporting the first rotary member, a second support member removably connected to the first support member and a spacer interchangeably disposed between the first and secorld support members, wherein the second rotary member is suppor-ted by the guide means or second support member.
Preferably, the crushing machine further comprises first support means for supporting the guide means, second annular suppor-t means for rota-tably supporting the ~irs-t rotary member and supported by the first support means such that -the second annular support means is angularly ro-tatable about a third axis displaced from the first axis, and means for regulating the angular rotating position of the second support means relative -to the firs-t support means. In this ?3 ~,) r!
a, case, the regulati.ng means preferably includes a spring for exerting such force as to rota-te the second support means in -the direction opposite -to the ro-tational direction of the first rotary m~mber, an arm mounted on the second support means and a stopper mounted on the first support means and capable of being brought into engagement with the arm.
Furthermore, i-t is preferable that the crushing machine has the firs-t and second rotary members so arranged as -to make the firs-t axis parallel to the second axis and that the portions oE the first and second rotary members -to define the outlet for -the use of granular subs-tances are respec-tively formed into planes parallel to each other. In this case, the planes defining the outlet for the use of granular substances are preferably formed into planes orthogonal to the first and second axes.
One of the first and second rotary members is forcibly rotated by the drive means, while the other is rotated following the rotation of one rotary member by brinying the substances to be crushed guided to the crushing chamber into engagement with both oE the rotary members. At this time, both of the rotary members are rotated under the condition that they are displaced from each other since their first and second axes are eccentric from each other or cross each other.
Further, both of the rotary members may be ~ 3~
forcibly rotated by the common drive means or different drive means.
When at least one of the ro-tary members is rotated, -the first and second rotary members are rnade -to bring about such rela-tive mo-tion -that they come closer to each other a-t a portion around each of the first and second axes while they are separated away from each other at another por-tion~ As a result, the substances to be crushed are sandwiched be-tween the first and second rotary members and thereaf-ter crushed according to the relat.ive motion o:E both oE the ro-tary members.
According to the present inven-tion, si.nce the first and second ro-tary members are only rotated about the first and second axes respectively without any turning, the vibrations are remarkably reduced in comparison with the conventional crushing machine which gives the turning motion to the rotary members.
In the crushing machine of the present invention, both of the rotary members are preferably rota-ted in the same direction at high speed. By so doing, since not only the substances to be crushed but also the crushed granular substances are rotated at high speed, large centrifugal force acts on both of the substances to be crushed and the granular substances, so that the substances to be crushed and granular substances may be forcibly moved. Accordingly, a capacity for processing is improved and the outlet of the crushing chamber for ~L3~L3~3~P~
the use oE granular subs-tances may be reduced in size in comparison with the conventional crushing machine, in which the crushed substances are dropped from the crushing chamber by -the gravity..
According to one aspect of -the invention, $ince the substances to be crushed are easily put between the first and second crushing surEaces, the subs-tances to be crushed may be securely crushed to improve the capacity for processing.
According to o-ther aspect of -the invention, since the crushed granular substances are received on the support means, it is possible to prevent the granular substances from spattering and a discharge port for discharging the granular substances may be disposed in any direction around the crushing chamber.
According to other aspect of the invention, since use is made of the spacer which is proper in thickness, it is possible to change each gap between the first and second crushing surfaces, a gap between the respective portions of the outlet of the crushing chamber for the use of granular substances and a relative positional relationship between the first and second ro-tary members.
According to other aspect of the invention, when the second support means is rotated about the third axis, the angular rotating position of the second support means relative to the first support means is ~ 38~
changed, so tha-t the displacemen-t between the first and second rotary members is changed. Therefore, the displacemen-t be-tween bo-th the ro-tary members may be easily adjusted to thereby adjust the capacity for processing depending upon the kind of substances to be crushed.
~ ccording to other aspec-t oE -the inven-tion, since the displacemen-t between the first and second rotary members is lessened when a load acting on -the drive means is large, while -the displacement as noted above i5 increased when the load is small, the capacity for processing may be automa-tically adjus-ted depending upon the kind, size and quantity of substances to be crushed, so that the optimum processing efficiency may be always maintained.
According to other aspect of the invention, each gap between the respective portions of the outlet for the use of granular substances around each of -the first and second axes may be held constant.
According to other aspect of the invention, even if the displacement between the first and second rotary members is changed, any gap between the respective portions of the outlet for the use of granular substances around each of the first and second axes is not varied.
:L3~3~
BRIEF DESCRIPT:tON OF' THE DRAWINGS
The foregoing and other objects and features of the invention will become apparen-t Erom the following description oE preferred embodiments of -the invention with reference to the accompanying drawings, in which:
Fig. 1 is a longitudinal cross-sec-tional view showing an embodimen-t of a crushing machine according to -the present inven-tion;
Fig. 2 is a longitudinal cross-sec-tional view showing another embodiment of the crushing machine according to the present invention;
Fig. 3 is a sectional view taken along a line 3-3 in Fig. 2;
Fig. 4 is a longitudinal cross-sectional view showing a further embodiment of the crushing machine according to the present invention; and Fig. 5 is a sectional view taken along a line 5-5 in Fig. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A vertical crushing machine 10 as shown in Fig. 1 comprises a tubular body 12. The body 12 includes a cylindrical main body 14 and flanges 16, 18 provided on opposite ends of the main body in the axial direction.
The body 12 is installed on a frame bed 20 in the lower flange 16 by a plurality of bolts so that an axis of the main body 14 extends in the vertical direction.
~3~3~ ,3 A plura:Lity oE arms 22 ex-tending inwardly from an inner surface of the main body 14 are provided in the body 12 and fixedly at-tached -to a boss 24. A first rotor 26 is rotatably supported by the boss 24 -through a bearing 28. The boss 24 and Eirst rotor 26 are so arranged tha-t thei.r axes extend in -the vertical direction.
Ilolders 30, 32 for the use of -the bearing 28 are respec-tively ~ounted on the boss 24 and first rotor 26.
A chu-te 34 for receiving crushed granular substances is mounted on the lQwer flange 16. A tubular casing 36 is disposed on the upper flange 18 so as to extend in the ver-tical direction.
The casing 36 is provided with a cylindrical main body 38 extending in the vertical direc-tion, a flange 40 provided on a lower end of the main body, an inward flange 42 provided on an upper end of the main body 38, and an annular projection 44 projecting downwardly and inwardly from the lower end of -the rnain body 38. The lower flange 40 is removably fixed in position to the body 12 by a plurality of bolts so that the flange 40 confronts the flange 18 of the body 12 through a ring 48 and an axis of the casing 36 is coincident wi-th that of -the body 12. The projection 44 is fitted in an upper portion of the body 12.
A bearing carrier 50 is mounted on an upper portion of the casing 36 by a plurality of bolts. The bearing carrier 50 is provi.ded with a boss 52 and a flange 5~ extending outwardly from the boss. Further, the bearing carrier 50 is moun-ted on the casing 36 in the flange 54 so tha-t an axis oE the boss 52 extends in the vertical direc-tion.
A tubular second rotor 56 is rotatably mounted on the boss 52 through a bearing 58 while a cover 60 for protecting the bearing 58 and a hopper 62 for receiving the massive subs-tances to be crushed are mounted on the boss 52 by a plurality of bolts. In the illustra-ted embodiment, use is made of a cross roller bearing as the bearing 58. Further, the bearing 58 is prevented from dropping out of the boss 52 and second rotor 56 by the use of a bearing holder 64 mounted on the boss 52 and a bearing holder 66 mounted on the second rotor 56.
The second rotor 56 is disposed above -the first rotor 26 through a space. The first rotor 26 has a conical convex surface 68 and a flat upward surface 70 continuous with the foot of the convex surface, which are located on the side of the second rotor 56. On the contrary, the second rotor 56 has a conical concave surface 72 and a flat downward surface 74 continuous with a lower end of the concave surface, which are located on the side of the first rotor 26.
The first and second rotors 26, 56 are so disposed that they define an annular crushing chamber 76 with the convex surface 68 and concave surface 72 and '' 3L3~,3,1,,/ ~1 also deEine an outlet 78 :Eor -the use of crushed granular substances with the surfaces 70, 74. A vertical angle of the convex surface 68 is larger than that of the concave surEace 72. Accordingly, a gap between the convex surface 68 and the concave surface 72 i5 gradually reduced Erom a port for receiving the substances -to be crushed into the crushing chamber 76 toward the outlet 78.
The surfaces 70,74 make a right angle with respect to an axis of the body 12 and that of the casing 36, tha-t is, an axis 80 of a portion where both of the body 12 and the casing 36 are fi-tted to each other. .
Therefore, a gap between the surfaces 70, 74 at each :
portion of the outlet 78 around the axis 80 is held constant. ~owever, a gap L of the outlet 78 may be varied by disposing the ring 48, which is proper in thickness, between the body 12 and the casing 36.
The first rotor 26 is disposed so as to be rotatable abou-t an axis 82 which is displaced from the axis 80 in one direction by a distance of a half of e.
On the contraryj the second rotor 56 is disposed so as to be rotatable about an axis 8~ which is displaced from the axis 80 in the direction opposite to the aforementioned direction by a distance of a half o e.
Therefore, by changing the position where the casing 36 is mounted on the body 12 around the axis 80, the eccentricity between the first and second rotors 26, 56 may be varied within the range :frorn 0 to e. Further, the axes 80, 82 and 84 may be inclined -to each other sligh-tly, preferably by an equal angle.
A drive mechanism 86 includes a rotary mechanism 88 provided with a motor and a reduction gear, a pulley 90 fixedly a-ttached to an output shaf-t of the rotary mechanism, a pulley 92 fixedly a-ttached to the second rotor 56 and a plurality of bel-ts 94 trained over both of the pulleys 90, 92. The rotary mechanism 88 is supported on a bed 96 fixedly a-ttached to the casiny 36 by a plurali-ty of bolts.
Further, instead of rotating the second rotor 56, the first rotor 26 may be rotated or both of the rotors 26, 56 may be rotated by the identical drive mechanism or different drive mechanisms.
In operation, the second rotor 56 is rotated about the axis 84 by the drive mechanism 86 at high speed, and the substances to be crushed are dumped into the hopper 62. While the substances to be crushed are not in engagement with the convex surface 68 and concave surface 72,. the first rotor 26 is not ro-tated. However, when the substances -to be crushed are sandwiched between the first and second rotors 26, 56, the first rotor 26 is rotated following the rotation of the second rotor 56.
When the first and second rotors 26, 56 are rotated, the rotors 26, 56 are made to bring about such ~ 3~
relative motion that they come closer to each other at a por-tion around each oE -the axes 82, 8~ while they are separated away from each other at another por-tion, since the firs-t and second rotors are respec-tively rota-ted abou-t axes 82 and 84 spaced apart from each o-ther by a distance indicated by e. As a result, the subs-tances to be crushed, which are sandwiched between the first and second ro-tors 26, 56 are crushed by the rotors 26, 56 when the gap between the rotors 26, 56 is narrowed.
The crushed granular substances are moved to -the outlet 78 in the crushing chamber 76 by the centrlfugal force with the ro-ta-ti.on of bo-th of -the rotors 26, 56, and then moved from -the outlet 78 in -the body 12 -to be finally dropped into the chute 34.
According -to the crushing machine 10, since -the first and second rotors 26 and 56 are only rota-ted about the axes 82 and 84, respectively, the vibrations are reduced in comparison with the conventional crushing machine which makes the rotor turn and it .is not necessary to provide a counter weight for damping the vibrations. Further, since the crushed substances are forcibly sent out of the crushing chamber 76 by the centrifugal force, a capacity for processing is remarkably improved in comparison with the conventional crushing machine, in which the granular substances are dropped from the crushing chamber by the gravity.
Furthermore, since the gap of the outlet 78 is held ~1 3 ~
- ]4 -constant, tll:is gap may be reduced in size in comparison with the conventional crushing machine which gives -the turning motlon to the rotor.
A crushing machine 100 as shown in Figs. 2 and 3 is assembled lnto a horizon-tal shape so -that the firs-t and second rotors 26 and 56 are rotated about axes 102, 104 extending in the horizontal direction respectively.
The crushing machine 100 comprises a body 108 defining a space 106 for receiving crushed granular substances spattered from -the crushing chamber 76 defined by the rotors 26, 56. The body 108 is installed on a frame bed 110 by a plurality of s-truts extending downwardly from portions defining the space 106.
The body 108 has openings bored in opposite ends of the body in the horizontal direction. A support ring 114 for rota-tably supporting the first rotor 26 is fitted in one opening of the body 108 through a bearing 112. The support ring 114 is removably mounted on the body 108 through a ring 116 by a plurality of bol-ts.
The support ring 114 supports a drive mechanism 118 for rotating the first rotor 26 abou-t the axis 102.
Further, instead of rotating the first rotor 26 by the drive mechanism 118, -the second rotor 56 may be rotated or both of the rotors may be rotated by the common drive rnechanism or different drive mechanisms.
In -the illustrated embodimen-t, use is made of a cross roller bearing as the bearing 112. The bearing ~3:~3~
112 is prevented from dropping out of the support ring llA and first rotor 26 by the use of a bearing holder 120 mounted Oll the support ring 114 and a bearing holder 122 mounted on the firs-t rotor 26.
The other opening of the body 108 rotatably suppor-ts the second rotor 56 -through a bearing 124, while a cover 126 for protecting the bearing 124 and a hopper 128 for receiving the subs-tances to be crushed are mounted on -the other opening by a plurality o:E
bolts. The hopper 128 is opened upwardly so as -to receive the subs-tances -to be crushed from above and guides the received substances to be crushed into the crushing chamber 76.
Use is also made of a cross roller bearing as the bearing 124. The bearing 124 is also prevented from dropping out of the body 108 and second rotor 56 by the use of a bearing holder 130 mounted on the body 108 and a bearing holder 132 mounted on the second rotor 56.
The rotary axis 102 of the first rotor 26 is displaced in one direction by a distance of a half of e from an axis 134 of a portion where the support ring 114 is fitted in the body 108. On the contrary, the second rotor 56 is displaced in -the direction opposi-te to the aforementioned direction by a distance of a half of e from the axis 134. However, by changing the position where the support ring 114 is mounted on the body 108 around the axis 134, the eccentricity between the first 3 ~
and second rotors 26, 56 may be vari.ed wi-thin -the range from 0 to e. F`urther, in -the case of the crushing machine 100, the axes 102, 104 and 134 may be inclined to each other slightly, preferably by an equal angle.
The surEaces 70, 74 of the first and second rotors 26, 56 make a righ-t angle with respect to the axis 134. Accordingly, a gap between the surfaces 70, 74 in each portion of the outlet 78 around the axis 134 is held constant. ~lowever, a gap L, of the outlet 78 may be varied by disposing the ring 116, which is proper in thickness, between the body 108 and the support ring 114.
In operation, the firs-t rotor 26 is rota-ted about the axis 102 by the drive mechanism 118 at high speed and the substances -to be crushed are dumped into the hopper 128. While the substances to be crushed are not in engagement wi-th the convex surface 68 and concave surface 72, the second rotor 56 is not rotated.
However, when the substances to be crushed are sandwiched between the first and second rotors 26, 56, -the second rotor 56 is rotated following the ro-tation of the first rotor 26.
When the first and second rotors 26, 56 are rotated, the rotors 26, 56 are made to bring about such relative motion that they come closer to each other at a portion around each of the axes 102, 104, while they are separated away from each other:at another portion, since the first and second rotors 26, 56 are ro-tated by being made to be eccentric from each other by a distance indica-ted by e. As a resul-t, -the subs-tances to be crushed, which are sandwlched be-tween the rotors 26, 56, are crushed by the rotors 26, 56 when the gap between the rotors 26, 56 is narrowed.
The crushed granular substances are moved to the outle-t 78 in the crushing chamber 76 by the centrlfugal force wi-th the rotation of the firs-t rotor 26 and then moved to the body 108 from -the outle-t 78 to be finally discharged form the space 106.
The crushing machine 100 has no-t only effects similar -to those oE -the crushing machine 10 but also effects in that the height of the crushing machine is reduced and -the adjustment of the eccentricity between the axes 102, 104 and tha-t of the gap of the outlet 78 may be facilitated since each rotary axis of the rotors 26, 56 extends in the horizontal direction.
Figs. 4 and 5 show an embodiment of another horizontal crushing machine 140, in which the eccentricity between the first and second rotors 26, 56 is automa-tically adjusted. The body 108 of the crushing machine 140 is divided into a first body 142 for supporting the support ring 114 such that the second rotor 56 is rotatable abou-t the axis 134 and a second body 144 for supporting the second rotor 56 so as to be rotatable about the axis 104. ~oth of the bodies 142, 3L3 ~3~
144 are rernovably connec-ted with each other by a plurality of bol-ts. The ring 116 is disposed between the bodies 142, 144 so as to vary the gap oE the outlet 78.
The suppor-t ring 114 is supported by the first body 142 -through a bearing 146. Use if made of a cross roller bearing as the bearing 146. The bearing 146 is prevented from droppi.ng out of t.he first body 142 and support ring 114 by the use of a bearing holder 148 mounted on -the first body 142 and a bearing holder 150 mounted on the support ring 114.
A coiled spring 152 is disposed between the first body 142 and -the support ring 114. ~n end of the coiled spring 152 on the center side is fixedly attached to the suppor-t ring 114 by a plurality of screws, while the other end on the outer peripheral side is fixedly attached to the first body by a pluraliry of screws. A
pointer 154 for indicating the displacement between the first and second rotors 26, 56 is fixedly attached to the suppor-t ring 114. On the contrary, a stopper 156, with which -the pointer 154 is capable of being brought into contact, is mounted on the bearing holder 148 fixedly attached to the first body 142, while a scale 158 for the use of the poin-ter 154 is provided on the bearing holder 148. The coiled spring 152 is previously wound up by a predetermined amount.
In operation, the first rotor 26 is rotated about ~3~3~
the axis 102 by the drive mechanisrn 118 at high speed and the substances -to be crushed are dumped in-to the hopper 128. While -the substances to be crushed are not in engagemen-t with the convex surface 68 and concave surface 72, the second rotor 56 is not ro-ta-ted. At -thi.s time, the pointer 154 is brought in-to contact with the stopper 156 by the Eorce of -the coiled spring 152.
}loweve~, when -the subs-tances to be crushed are sandwiched be-tween the first and second rotors 26, 56, the second rotor 56 is ro-tated following the ro-ta-tion of the first rotor 26.
When the first and second ro-tors 26, 56 are rotated, the rotors 26, 56 are made to bring abou-t such relative motion tha-t they come closer to each other at a portion around each of the axes 102, 104 while they are separated away from each o-ther at another portion, since the rotors 26, 56 are rotated by being made to be eccentric from each other by a distance indicated by e.
As a result, -the subs-tances to be crushed, which are sandwiched between the rotors 26, 56, are crushed by the rotors 26, 56 when the gap between the ro-tors 26, 56 is narrowed.
When -the substances to be crushed are crushed, a large load acts on the first ro-tor 26, so that a reaction acts on the drive mechanism 118 so as to rotate the drive mechanism 118 in the direction (counter-clockwise in Fig. 5) opposi-te to the rotating direction ~ t~ 3~;1 oE the first rotor 26. Accordingly, the drive mechanism 118 ls angularly rotated in the di.rection opposite to the rota-ting direction oE the firs-t rotor 26 -to a position where the reaction, that is, -the load is balanced with the force of the coiled spring 1.52. As a result, the eccen-tricity between the first and second rotors 26, 56 is lessened to reduce the load acting on the first rotor 26. The eccentircity a-t this -time may be shown by a value of the scale suppor-ted by -the poin-ter 154.
The crushed granular substances are moved -to the outle-t 78 in the crushing chamber 76 by the centrifugal force with the rota-tion of the first rotor 26 and then moved to -the outside of the crushing chamber 76 from the outlet 76 to be finally discharged from the space 106.
The crushing machine 140 has not only effects similar to those of the crushing machine 100 bu-t also effects in tha-t the eccen-tricity between the first and second rotors 26, 56 is automatically adjusted according to the load ac-ting on the first rotor 26.
Further, instead of providi.ng the coiled spring 152, the pointer 154 may be made of an arm and -the support ring 114 may be manually rotated to a position where the eccentricity between -the first and second rotors 26, 56 comes -to a predetermined ~alue, whereby the pointer 154 is releasably fi~ed in position -to the bearing holder 148 so as to maintain -the posi.tion as noted ~L c~ J f~J l - 2:L -above. In this case, the pointer 154 ls preferably made of the arm.
BACKGROUND OF THE INVRNTION
Field of the Inven-tion:
This inven-tion relates to a crushing machine for crushing stones and coals or -the like and, more particularly, to a crushing machine su:itable for collapsing massive substances.
Description oE -the Prior Art:
As one of crushing machines for collapsing substances to be crushed, there is provided a gyratory crusher, a cone crusher or like crushing machine. Each of these crushing machines includes a cone cave, a conical rotor disposed in the cone cave so as to permit the eccentric turning motion and a drive mechanism for rotating the rotor. When crushing is done, the rotor turns to the cone cave at predetermined speed to thereby press the subs-tances to be crushed against an inner surface of the cone cave. By so doing, the substances to be crushed are compressed and -then crushed.
However, since the conventional crushing machine as noted above makes the rotor turn forcibly, it is large in vibration.
SUMMARY OF THE INVENTION
It is an object of the present invention to ~3 ~ 3~3~3~
provicle a crush:ing machine which does not need -to give the turning motion to crushing means.
A crushing machine according to the present inven-tion comprises crushing means including a first ro-tary member rotatable about a first axis and a second ro-tary member for crushing substances to be crushed in cooperation with the first rotary member, the second rotary member being rotatable about a second axis parallel to or inclined to the first axis and defining, in cooperation wi.th the first rotary member, a crushing chamber for crushing the substances to be crushed, guide means for receiving the substances and then guiding the received substances to the crushing chamber and drive means for rotating the firs-t or second rotary member.
In a preferred embodiment, each ro-tary member includes a rotor, and the guide means includes a hopper.
Further, according to one of preferred embodiments, each rotary member is disposed to be rotatable about a vertically ex-tending axis. According to ano-ther preferred embodiment, each rotary member is disposed to be rotatable about a horizontally extending axisa The first and second rotary members have respectively first and second crushing surfaces for defining the crushing chamber in cooperation with each other. The first and second crushing surfaces are preferably formed into convex and concave surfaces respectively so that a distance between the first and :~ 3 ~ ~ ~ J, second crushing sur:Eaces is gradually reduced from an inlet for receiving the subs-tances to be crushed toward an outle-t for -the use of crushed granular substances.
In -this case, each of the first and second crushing surfaces may be formed into a semispherical shape or a conical shape.
Preferably, -the crushing machine fur-ther comprises support means for suppor-ting bo-th of the first rotary member and the guide means and deEining a space for receiving the crushed granular substances Erom the crushing chamber. In this case, the support means preferably includes a first support member for supporting the first rotary member, a second support member removably connected to the first support member and a spacer interchangeably disposed between the first and secorld support members, wherein the second rotary member is suppor-ted by the guide means or second support member.
Preferably, the crushing machine further comprises first support means for supporting the guide means, second annular suppor-t means for rota-tably supporting the ~irs-t rotary member and supported by the first support means such that -the second annular support means is angularly ro-tatable about a third axis displaced from the first axis, and means for regulating the angular rotating position of the second support means relative -to the firs-t support means. In this ?3 ~,) r!
a, case, the regulati.ng means preferably includes a spring for exerting such force as to rota-te the second support means in -the direction opposite -to the ro-tational direction of the first rotary m~mber, an arm mounted on the second support means and a stopper mounted on the first support means and capable of being brought into engagement with the arm.
Furthermore, i-t is preferable that the crushing machine has the firs-t and second rotary members so arranged as -to make the firs-t axis parallel to the second axis and that the portions oE the first and second rotary members -to define the outlet for -the use of granular subs-tances are respec-tively formed into planes parallel to each other. In this case, the planes defining the outlet for the use of granular substances are preferably formed into planes orthogonal to the first and second axes.
One of the first and second rotary members is forcibly rotated by the drive means, while the other is rotated following the rotation of one rotary member by brinying the substances to be crushed guided to the crushing chamber into engagement with both oE the rotary members. At this time, both of the rotary members are rotated under the condition that they are displaced from each other since their first and second axes are eccentric from each other or cross each other.
Further, both of the rotary members may be ~ 3~
forcibly rotated by the common drive means or different drive means.
When at least one of the ro-tary members is rotated, -the first and second rotary members are rnade -to bring about such rela-tive mo-tion -that they come closer to each other a-t a portion around each of the first and second axes while they are separated away from each other at another por-tion~ As a result, the substances to be crushed are sandwiched be-tween the first and second rotary members and thereaf-ter crushed according to the relat.ive motion o:E both oE the ro-tary members.
According to the present inven-tion, si.nce the first and second ro-tary members are only rotated about the first and second axes respectively without any turning, the vibrations are remarkably reduced in comparison with the conventional crushing machine which gives the turning motion to the rotary members.
In the crushing machine of the present invention, both of the rotary members are preferably rota-ted in the same direction at high speed. By so doing, since not only the substances to be crushed but also the crushed granular substances are rotated at high speed, large centrifugal force acts on both of the substances to be crushed and the granular substances, so that the substances to be crushed and granular substances may be forcibly moved. Accordingly, a capacity for processing is improved and the outlet of the crushing chamber for ~L3~L3~3~P~
the use oE granular subs-tances may be reduced in size in comparison with the conventional crushing machine, in which the crushed substances are dropped from the crushing chamber by -the gravity..
According to one aspect of -the invention, $ince the substances to be crushed are easily put between the first and second crushing surEaces, the subs-tances to be crushed may be securely crushed to improve the capacity for processing.
According to o-ther aspect of -the invention, since the crushed granular substances are received on the support means, it is possible to prevent the granular substances from spattering and a discharge port for discharging the granular substances may be disposed in any direction around the crushing chamber.
According to other aspect of the invention, since use is made of the spacer which is proper in thickness, it is possible to change each gap between the first and second crushing surfaces, a gap between the respective portions of the outlet of the crushing chamber for the use of granular substances and a relative positional relationship between the first and second ro-tary members.
According to other aspect of the invention, when the second support means is rotated about the third axis, the angular rotating position of the second support means relative to the first support means is ~ 38~
changed, so tha-t the displacemen-t between the first and second rotary members is changed. Therefore, the displacemen-t be-tween bo-th the ro-tary members may be easily adjusted to thereby adjust the capacity for processing depending upon the kind of substances to be crushed.
~ ccording to other aspec-t oE -the inven-tion, since the displacemen-t between the first and second rotary members is lessened when a load acting on -the drive means is large, while -the displacement as noted above i5 increased when the load is small, the capacity for processing may be automa-tically adjus-ted depending upon the kind, size and quantity of substances to be crushed, so that the optimum processing efficiency may be always maintained.
According to other aspect of the invention, each gap between the respective portions of the outlet for the use of granular substances around each of -the first and second axes may be held constant.
According to other aspect of the invention, even if the displacement between the first and second rotary members is changed, any gap between the respective portions of the outlet for the use of granular substances around each of the first and second axes is not varied.
:L3~3~
BRIEF DESCRIPT:tON OF' THE DRAWINGS
The foregoing and other objects and features of the invention will become apparen-t Erom the following description oE preferred embodiments of -the invention with reference to the accompanying drawings, in which:
Fig. 1 is a longitudinal cross-sec-tional view showing an embodimen-t of a crushing machine according to -the present inven-tion;
Fig. 2 is a longitudinal cross-sec-tional view showing another embodiment of the crushing machine according to the present invention;
Fig. 3 is a sectional view taken along a line 3-3 in Fig. 2;
Fig. 4 is a longitudinal cross-sectional view showing a further embodiment of the crushing machine according to the present invention; and Fig. 5 is a sectional view taken along a line 5-5 in Fig. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A vertical crushing machine 10 as shown in Fig. 1 comprises a tubular body 12. The body 12 includes a cylindrical main body 14 and flanges 16, 18 provided on opposite ends of the main body in the axial direction.
The body 12 is installed on a frame bed 20 in the lower flange 16 by a plurality of bolts so that an axis of the main body 14 extends in the vertical direction.
~3~3~ ,3 A plura:Lity oE arms 22 ex-tending inwardly from an inner surface of the main body 14 are provided in the body 12 and fixedly at-tached -to a boss 24. A first rotor 26 is rotatably supported by the boss 24 -through a bearing 28. The boss 24 and Eirst rotor 26 are so arranged tha-t thei.r axes extend in -the vertical direction.
Ilolders 30, 32 for the use of -the bearing 28 are respec-tively ~ounted on the boss 24 and first rotor 26.
A chu-te 34 for receiving crushed granular substances is mounted on the lQwer flange 16. A tubular casing 36 is disposed on the upper flange 18 so as to extend in the ver-tical direction.
The casing 36 is provided with a cylindrical main body 38 extending in the vertical direc-tion, a flange 40 provided on a lower end of the main body, an inward flange 42 provided on an upper end of the main body 38, and an annular projection 44 projecting downwardly and inwardly from the lower end of -the rnain body 38. The lower flange 40 is removably fixed in position to the body 12 by a plurality of bolts so that the flange 40 confronts the flange 18 of the body 12 through a ring 48 and an axis of the casing 36 is coincident wi-th that of -the body 12. The projection 44 is fitted in an upper portion of the body 12.
A bearing carrier 50 is mounted on an upper portion of the casing 36 by a plurality of bolts. The bearing carrier 50 is provi.ded with a boss 52 and a flange 5~ extending outwardly from the boss. Further, the bearing carrier 50 is moun-ted on the casing 36 in the flange 54 so tha-t an axis oE the boss 52 extends in the vertical direc-tion.
A tubular second rotor 56 is rotatably mounted on the boss 52 through a bearing 58 while a cover 60 for protecting the bearing 58 and a hopper 62 for receiving the massive subs-tances to be crushed are mounted on the boss 52 by a plurality of bolts. In the illustra-ted embodiment, use is made of a cross roller bearing as the bearing 58. Further, the bearing 58 is prevented from dropping out of the boss 52 and second rotor 56 by the use of a bearing holder 64 mounted on the boss 52 and a bearing holder 66 mounted on the second rotor 56.
The second rotor 56 is disposed above -the first rotor 26 through a space. The first rotor 26 has a conical convex surface 68 and a flat upward surface 70 continuous with the foot of the convex surface, which are located on the side of the second rotor 56. On the contrary, the second rotor 56 has a conical concave surface 72 and a flat downward surface 74 continuous with a lower end of the concave surface, which are located on the side of the first rotor 26.
The first and second rotors 26, 56 are so disposed that they define an annular crushing chamber 76 with the convex surface 68 and concave surface 72 and '' 3L3~,3,1,,/ ~1 also deEine an outlet 78 :Eor -the use of crushed granular substances with the surfaces 70, 74. A vertical angle of the convex surface 68 is larger than that of the concave surEace 72. Accordingly, a gap between the convex surface 68 and the concave surface 72 i5 gradually reduced Erom a port for receiving the substances -to be crushed into the crushing chamber 76 toward the outlet 78.
The surfaces 70,74 make a right angle with respect to an axis of the body 12 and that of the casing 36, tha-t is, an axis 80 of a portion where both of the body 12 and the casing 36 are fi-tted to each other. .
Therefore, a gap between the surfaces 70, 74 at each :
portion of the outlet 78 around the axis 80 is held constant. ~owever, a gap L of the outlet 78 may be varied by disposing the ring 48, which is proper in thickness, between the body 12 and the casing 36.
The first rotor 26 is disposed so as to be rotatable abou-t an axis 82 which is displaced from the axis 80 in one direction by a distance of a half of e.
On the contraryj the second rotor 56 is disposed so as to be rotatable about an axis 8~ which is displaced from the axis 80 in the direction opposite to the aforementioned direction by a distance of a half o e.
Therefore, by changing the position where the casing 36 is mounted on the body 12 around the axis 80, the eccentricity between the first and second rotors 26, 56 may be varied within the range :frorn 0 to e. Further, the axes 80, 82 and 84 may be inclined -to each other sligh-tly, preferably by an equal angle.
A drive mechanism 86 includes a rotary mechanism 88 provided with a motor and a reduction gear, a pulley 90 fixedly a-ttached to an output shaf-t of the rotary mechanism, a pulley 92 fixedly a-ttached to the second rotor 56 and a plurality of bel-ts 94 trained over both of the pulleys 90, 92. The rotary mechanism 88 is supported on a bed 96 fixedly a-ttached to the casiny 36 by a plurali-ty of bolts.
Further, instead of rotating the second rotor 56, the first rotor 26 may be rotated or both of the rotors 26, 56 may be rotated by the identical drive mechanism or different drive mechanisms.
In operation, the second rotor 56 is rotated about the axis 84 by the drive mechanism 86 at high speed, and the substances to be crushed are dumped into the hopper 62. While the substances to be crushed are not in engagement with the convex surface 68 and concave surface 72,. the first rotor 26 is not ro-tated. However, when the substances -to be crushed are sandwiched between the first and second rotors 26, 56, the first rotor 26 is rotated following the rotation of the second rotor 56.
When the first and second rotors 26, 56 are rotated, the rotors 26, 56 are made to bring about such ~ 3~
relative motion that they come closer to each other at a por-tion around each oE -the axes 82, 8~ while they are separated away from each other at another por-tion, since the firs-t and second rotors are respec-tively rota-ted abou-t axes 82 and 84 spaced apart from each o-ther by a distance indicated by e. As a result, the subs-tances to be crushed, which are sandwiched between the first and second ro-tors 26, 56 are crushed by the rotors 26, 56 when the gap between the rotors 26, 56 is narrowed.
The crushed granular substances are moved to -the outlet 78 in the crushing chamber 76 by the centrlfugal force with the ro-ta-ti.on of bo-th of -the rotors 26, 56, and then moved from -the outlet 78 in -the body 12 -to be finally dropped into the chute 34.
According -to the crushing machine 10, since -the first and second rotors 26 and 56 are only rota-ted about the axes 82 and 84, respectively, the vibrations are reduced in comparison with the conventional crushing machine which makes the rotor turn and it .is not necessary to provide a counter weight for damping the vibrations. Further, since the crushed substances are forcibly sent out of the crushing chamber 76 by the centrifugal force, a capacity for processing is remarkably improved in comparison with the conventional crushing machine, in which the granular substances are dropped from the crushing chamber by the gravity.
Furthermore, since the gap of the outlet 78 is held ~1 3 ~
- ]4 -constant, tll:is gap may be reduced in size in comparison with the conventional crushing machine which gives -the turning motlon to the rotor.
A crushing machine 100 as shown in Figs. 2 and 3 is assembled lnto a horizon-tal shape so -that the firs-t and second rotors 26 and 56 are rotated about axes 102, 104 extending in the horizontal direction respectively.
The crushing machine 100 comprises a body 108 defining a space 106 for receiving crushed granular substances spattered from -the crushing chamber 76 defined by the rotors 26, 56. The body 108 is installed on a frame bed 110 by a plurality of s-truts extending downwardly from portions defining the space 106.
The body 108 has openings bored in opposite ends of the body in the horizontal direction. A support ring 114 for rota-tably supporting the first rotor 26 is fitted in one opening of the body 108 through a bearing 112. The support ring 114 is removably mounted on the body 108 through a ring 116 by a plurality of bol-ts.
The support ring 114 supports a drive mechanism 118 for rotating the first rotor 26 abou-t the axis 102.
Further, instead of rotating the first rotor 26 by the drive mechanism 118, -the second rotor 56 may be rotated or both of the rotors may be rotated by the common drive rnechanism or different drive mechanisms.
In -the illustrated embodimen-t, use is made of a cross roller bearing as the bearing 112. The bearing ~3:~3~
112 is prevented from dropping out of the support ring llA and first rotor 26 by the use of a bearing holder 120 mounted Oll the support ring 114 and a bearing holder 122 mounted on the firs-t rotor 26.
The other opening of the body 108 rotatably suppor-ts the second rotor 56 -through a bearing 124, while a cover 126 for protecting the bearing 124 and a hopper 128 for receiving the subs-tances to be crushed are mounted on -the other opening by a plurality o:E
bolts. The hopper 128 is opened upwardly so as -to receive the subs-tances -to be crushed from above and guides the received substances to be crushed into the crushing chamber 76.
Use is also made of a cross roller bearing as the bearing 124. The bearing 124 is also prevented from dropping out of the body 108 and second rotor 56 by the use of a bearing holder 130 mounted on the body 108 and a bearing holder 132 mounted on the second rotor 56.
The rotary axis 102 of the first rotor 26 is displaced in one direction by a distance of a half of e from an axis 134 of a portion where the support ring 114 is fitted in the body 108. On the contrary, the second rotor 56 is displaced in -the direction opposi-te to the aforementioned direction by a distance of a half of e from the axis 134. However, by changing the position where the support ring 114 is mounted on the body 108 around the axis 134, the eccentricity between the first 3 ~
and second rotors 26, 56 may be vari.ed wi-thin -the range from 0 to e. F`urther, in -the case of the crushing machine 100, the axes 102, 104 and 134 may be inclined to each other slightly, preferably by an equal angle.
The surEaces 70, 74 of the first and second rotors 26, 56 make a righ-t angle with respect to the axis 134. Accordingly, a gap between the surfaces 70, 74 in each portion of the outlet 78 around the axis 134 is held constant. ~lowever, a gap L, of the outlet 78 may be varied by disposing the ring 116, which is proper in thickness, between the body 108 and the support ring 114.
In operation, the firs-t rotor 26 is rota-ted about the axis 102 by the drive mechanism 118 at high speed and the substances -to be crushed are dumped into the hopper 128. While the substances to be crushed are not in engagement wi-th the convex surface 68 and concave surface 72, the second rotor 56 is not rotated.
However, when the substances to be crushed are sandwiched between the first and second rotors 26, 56, -the second rotor 56 is rotated following the ro-tation of the first rotor 26.
When the first and second rotors 26, 56 are rotated, the rotors 26, 56 are made to bring about such relative motion that they come closer to each other at a portion around each of the axes 102, 104, while they are separated away from each other:at another portion, since the first and second rotors 26, 56 are ro-tated by being made to be eccentric from each other by a distance indica-ted by e. As a resul-t, -the subs-tances to be crushed, which are sandwlched be-tween the rotors 26, 56, are crushed by the rotors 26, 56 when the gap between the rotors 26, 56 is narrowed.
The crushed granular substances are moved to the outle-t 78 in the crushing chamber 76 by the centrlfugal force wi-th the rotation of the firs-t rotor 26 and then moved to the body 108 from -the outle-t 78 to be finally discharged form the space 106.
The crushing machine 100 has no-t only effects similar -to those oE -the crushing machine 10 but also effects in that the height of the crushing machine is reduced and -the adjustment of the eccentricity between the axes 102, 104 and tha-t of the gap of the outlet 78 may be facilitated since each rotary axis of the rotors 26, 56 extends in the horizontal direction.
Figs. 4 and 5 show an embodiment of another horizontal crushing machine 140, in which the eccentricity between the first and second rotors 26, 56 is automa-tically adjusted. The body 108 of the crushing machine 140 is divided into a first body 142 for supporting the support ring 114 such that the second rotor 56 is rotatable abou-t the axis 134 and a second body 144 for supporting the second rotor 56 so as to be rotatable about the axis 104. ~oth of the bodies 142, 3L3 ~3~
144 are rernovably connec-ted with each other by a plurality of bol-ts. The ring 116 is disposed between the bodies 142, 144 so as to vary the gap oE the outlet 78.
The suppor-t ring 114 is supported by the first body 142 -through a bearing 146. Use if made of a cross roller bearing as the bearing 146. The bearing 146 is prevented from droppi.ng out of t.he first body 142 and support ring 114 by the use of a bearing holder 148 mounted on -the first body 142 and a bearing holder 150 mounted on the support ring 114.
A coiled spring 152 is disposed between the first body 142 and -the support ring 114. ~n end of the coiled spring 152 on the center side is fixedly attached to the suppor-t ring 114 by a plurality of screws, while the other end on the outer peripheral side is fixedly attached to the first body by a pluraliry of screws. A
pointer 154 for indicating the displacement between the first and second rotors 26, 56 is fixedly attached to the suppor-t ring 114. On the contrary, a stopper 156, with which -the pointer 154 is capable of being brought into contact, is mounted on the bearing holder 148 fixedly attached to the first body 142, while a scale 158 for the use of the poin-ter 154 is provided on the bearing holder 148. The coiled spring 152 is previously wound up by a predetermined amount.
In operation, the first rotor 26 is rotated about ~3~3~
the axis 102 by the drive mechanisrn 118 at high speed and the substances -to be crushed are dumped in-to the hopper 128. While -the substances to be crushed are not in engagemen-t with the convex surface 68 and concave surface 72, the second rotor 56 is not ro-ta-ted. At -thi.s time, the pointer 154 is brought in-to contact with the stopper 156 by the Eorce of -the coiled spring 152.
}loweve~, when -the subs-tances to be crushed are sandwiched be-tween the first and second rotors 26, 56, the second rotor 56 is ro-tated following the ro-ta-tion of the first rotor 26.
When the first and second ro-tors 26, 56 are rotated, the rotors 26, 56 are made to bring abou-t such relative motion tha-t they come closer to each other at a portion around each of the axes 102, 104 while they are separated away from each o-ther at another portion, since the rotors 26, 56 are rotated by being made to be eccentric from each other by a distance indicated by e.
As a result, -the subs-tances to be crushed, which are sandwiched between the rotors 26, 56, are crushed by the rotors 26, 56 when the gap between the ro-tors 26, 56 is narrowed.
When -the substances to be crushed are crushed, a large load acts on the first ro-tor 26, so that a reaction acts on the drive mechanism 118 so as to rotate the drive mechanism 118 in the direction (counter-clockwise in Fig. 5) opposi-te to the rotating direction ~ t~ 3~;1 oE the first rotor 26. Accordingly, the drive mechanism 118 ls angularly rotated in the di.rection opposite to the rota-ting direction oE the firs-t rotor 26 -to a position where the reaction, that is, -the load is balanced with the force of the coiled spring 1.52. As a result, the eccen-tricity between the first and second rotors 26, 56 is lessened to reduce the load acting on the first rotor 26. The eccentircity a-t this -time may be shown by a value of the scale suppor-ted by -the poin-ter 154.
The crushed granular substances are moved -to the outle-t 78 in the crushing chamber 76 by the centrifugal force with the rota-tion of the first rotor 26 and then moved to -the outside of the crushing chamber 76 from the outlet 76 to be finally discharged from the space 106.
The crushing machine 140 has not only effects similar to those of the crushing machine 100 bu-t also effects in tha-t the eccen-tricity between the first and second rotors 26, 56 is automatically adjusted according to the load ac-ting on the first rotor 26.
Further, instead of providi.ng the coiled spring 152, the pointer 154 may be made of an arm and -the support ring 114 may be manually rotated to a position where the eccentricity between -the first and second rotors 26, 56 comes -to a predetermined ~alue, whereby the pointer 154 is releasably fi~ed in position -to the bearing holder 148 so as to maintain -the posi.tion as noted ~L c~ J f~J l - 2:L -above. In this case, the pointer 154 ls preferably made of the arm.
Claims (7)
1. A crushing machine, comprising:
crushing means including a first rotary member rotatable about a first axis and a second rotary member rotatable about a second axis, said first and second rotary members being disposed spaced apart from each other in the direction of said first axis to define a crushing chamber for crushing substances between said first and second rotary members, said second rotary member having a hole extending through the central portion thereof in the direction of said second axis for supplying said substances to the crushing chamber, and said crushing chamber having an annular outlet continuously extending about said first axis permitting crushed substances to flow out from said crushing chamber;
drive means for rotating at least one of said first and second rotary members; and support means supporting said first and second rotary members maintaining said annular outlet and defining a space for receiving crushed substances from said crushing chamber, said support means comprising: a first annular support member rotatably supporting said first rotary member; a second annular support member supporting said first support member so as to be angularly rotatable about a third axis which is eccentric from said first axis and rotatably supporting said second rotary member; and means for regulating angular rotational position of said first support member relative to said second support member, said means for regulating including a spring for exerting force to rotate said first support member in a direction opposite to that of said first rotary member; an arm mounted on said first support member; and a stopper mounted on said second support member and capable of being brought into engagement with said arm.
crushing means including a first rotary member rotatable about a first axis and a second rotary member rotatable about a second axis, said first and second rotary members being disposed spaced apart from each other in the direction of said first axis to define a crushing chamber for crushing substances between said first and second rotary members, said second rotary member having a hole extending through the central portion thereof in the direction of said second axis for supplying said substances to the crushing chamber, and said crushing chamber having an annular outlet continuously extending about said first axis permitting crushed substances to flow out from said crushing chamber;
drive means for rotating at least one of said first and second rotary members; and support means supporting said first and second rotary members maintaining said annular outlet and defining a space for receiving crushed substances from said crushing chamber, said support means comprising: a first annular support member rotatably supporting said first rotary member; a second annular support member supporting said first support member so as to be angularly rotatable about a third axis which is eccentric from said first axis and rotatably supporting said second rotary member; and means for regulating angular rotational position of said first support member relative to said second support member, said means for regulating including a spring for exerting force to rotate said first support member in a direction opposite to that of said first rotary member; an arm mounted on said first support member; and a stopper mounted on said second support member and capable of being brought into engagement with said arm.
2. A crushing machine according to claim 1, wherein said first and second rotary members respectively have first and second crushing surfaces defining said crushing chamber in cooperation with each other, said first and second crushing surfaces being respectively formed as convex and concave surfaces so that the distance between said first and second crushing surfaces is gradually reduced from said hole in said secondary rotary member toward said outlet.
3. A crushing machine according to claim 1, wherein portions of said first and second rotary members defining said outlet are parallel to each other.
4. A crushing machine according to claim 3, wherein planes defining said outlet are orthogonal to said first and second axes.
5. A crushing machine according to claim 1, wherein said first and second axes are parallel.
6. A crushing machine according to claim 1, wherein said second axis is inclined toward said first axis.
7. A crushing machine according to claim 1, further comprising guide means for guiding said substances to said hole, wherein said guide means is supported by said support means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000603135A CA1313857C (en) | 1989-06-16 | 1989-06-16 | Crushing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000603135A CA1313857C (en) | 1989-06-16 | 1989-06-16 | Crushing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1313857C true CA1313857C (en) | 1993-02-23 |
Family
ID=4140226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000603135A Expired - Fee Related CA1313857C (en) | 1989-06-16 | 1989-06-16 | Crushing machine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1313857C (en) |
-
1989
- 1989-06-16 CA CA000603135A patent/CA1313857C/en not_active Expired - Fee Related
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