JP2014217792A - Cracking and particle size regulating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cracking and particle size regulating machine capable of facilitating maintenance such as the replacement of a blade.SOLUTION: A cracking and particle size regulating machine 100 comprises: a cylindrical screen 10 on which plural holes for making powders which are subjected to cracking and particle size regulation pass are provided on its wall; a shaft 20 disposed rotatably along the central shaft of the screen 10; a blade 30 detachably attached to an end of the shaft 20 and rotating following to the shaft 20 in the screen; a motor 40 for generating torque; and torque transmission means 50 for transmitting the torque generated by the motor 40 to the shaft 20. The machine further comprises: a movable member 60 for supporting the screen 10, the shaft 20, and the motor 40 in an integrated state; a fixing member 70 for supporting the movable member 60 rotatably around an inclination shaft T vertical to the shaft 20 as a center; and an inclination mechanism for inclining the movable member 60 with the inclination shaft T serving as a center.

Description

  The present invention relates to a pulverizing and sizing machine for pulverizing and sizing powder raw materials.

  In the manufacture of pharmaceuticals and foods, a crushing and sizing machine is used to adjust the particle size of the powder (see Patent Document 1). The crushing and sizing machine is configured so that raw materials are charged from the top, crushed and sized in a cylindrical container, and discharged to the outside through a number of holes provided in the container.

  The crushing and sizing machine disclosed in Patent Document 1 is configured such that a crushing knife and a sizing impeller can be removed and replaced. That is, when crushing the raw material, a knife is attached to the shaft, and a cylindrical screen provided with a large number of holes is installed so as to accommodate the knife therein. When sizing raw materials, an impeller is attached to the shaft, and a truncated conical screen with a large number of holes is housed inside the impeller so that the outermost surface of the impeller is in close contact with the inner wall surface. Install.

  In the pulverization and sizing machine disclosed in Patent Document 1, the powder outlet is always facing downward. The direction of the shaft on which the knife and the impeller are mounted is also fixed in the vertical direction. Therefore, when exchanging a knife and an impeller, an operator needs to put his hand through the discharge port, remove the knife or impeller from the shaft, and attach the knife or impeller to the shaft.

  During maintenance work such as installing or removing a knife or impeller, the operator must hold it from below so that the knife or impeller does not come off the shaft and fall to the ground. Met. And a jig was needed to perform maintenance by one worker. In addition, since knives and impellers are heavy, they may be damaged when dropped on the ground and may cause disasters.

JP 2010-284588 A

  Therefore, a problem to be solved by the present invention is to provide a pulverizing and sizing machine that facilitates maintenance such as blade replacement.

  The present invention has been made to solve the above problems, and the invention according to claim 1 includes a cylindrical screen provided with a large number of holes on the wall through which the pulverized and sized powder passes. A shaft rotatably disposed along the central axis of the screen; a blade that is detachably provided at an end of the shaft and rotates following the shaft in the screen; and a motor that generates torque. A torque transmitting means for transmitting the torque of the motor to the shaft; a movable member that integrally supports the screen, the shaft, and the motor; and the movable member that rotates about a tilting axis perpendicular to the shaft. A crushing and sizing machine comprising a fixed member that supports the tilting mechanism and a tilting mechanism that tilts the movable member around the tilting axis.

  According to the invention described in claim 1, a crushing and sizing machine capable of easily performing maintenance and easily exchanging blades by integrally tilting the screen, the shaft and the motor. Can be provided.

  The invention according to claim 2 further includes holding means for holding the movable member at at least two positions of an operation position and a maintenance position, and in the operation position, the shaft has a vertical direction in which the blade is on the lower side. 2. The pulverizing and granulating machine according to claim 1, wherein, at the maintenance position, the shaft is tilted at least 90 ° from the operation position about the tilting axis.

  According to the second aspect of the present invention, it is possible to provide a pulverizing and granulating machine that can be removed and replaced in a stable posture.

  The invention according to claim 3 is characterized in that the blade and the motor are supported by the movable member so as to face each other with the tilting shaft interposed therebetween. It is.

  According to the third aspect of the present invention, it is possible to provide a pulverizing and sizing machine that requires only a small force for tilting, is small in size, and is light and safe.

  According to a fourth aspect of the present invention, the torque transmission means includes a belt, and further includes a tension adjustment mechanism that adjusts a tension of the belt, and the tension adjustment mechanism adjusts a distance between the shaft and the motor. 4. The crushing and sizing machine according to claim 3, wherein the tension of the belt is adjusted.

  According to the fourth aspect of the present invention, it is possible to provide a pulverizing and sizing machine that can easily adjust the belt tension.

  According to the present invention, it is possible to provide a pulverizing and sizing machine capable of easily performing maintenance and easily exchanging blades by tilting a screen, a shaft, and a motor integrally. it can.

It is a front view of a crushing and sizing machine according to an embodiment of the present invention. It is a partial front sectional view of a crushing and granulating machine concerning an embodiment of the present invention. It is a disassembled perspective view of the crushing and granulating machine which concerns on embodiment of this invention. It is a fragmentary sectional view which shows AA in FIG. It is a fragmentary sectional view which shows BB in FIG. It is a fragmentary sectional view which shows CC in FIG. It is a fragmentary sectional view which shows DD in FIG. It is a fragmentary sectional view which shows EE in FIG. It is a figure which shows the driving | running position of the crushing and granulating machine which concerns on embodiment of this invention, (a) is right side sectional drawing, (b) is a left side view. It is a figure which shows the maintenance position of the crushing and granulating machine which concerns on embodiment of this invention, (a) is right side sectional drawing, (b) is a left side view.

  Next, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are preferred embodiments of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. As long as there is no description of the effect, it is not restricted to these aspects. In particular, in the embodiment of the present invention, packing is provided in various places in order to maintain hermeticity and avoid direct contact between structural members, but these packings can be added and deleted as appropriate. is there.

(Embodiment)
First, the whole structure of the crushing and sizing machine according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2.

  A pulverizing and sizing machine 100 according to this embodiment is a cylindrical screen 10 provided with a large number of holes in a wall through which pulverized and sized powder passes, and is arranged so as to be rotatable along the central axis of the screen 10. The shaft 20 is detachably provided at the end of the shaft 20, and rotates in the screen 10 following the shaft 20. The motor 40 generates torque, and the torque of the motor 40 is transmitted to the shaft 20. Torque transmission means 50 is provided. Further, the movable member 60 that integrally supports the screen 10, the shaft 20, and the motor 40, the fixed member 70 that rotatably supports the movable member 60 about the tilt axis T perpendicular to the shaft 20, and the tilt shaft T Is provided with a tilting mechanism 80 that tilts the movable member 60 around the center.

  The crushing and sizing machine 100 according to the present embodiment further includes holding means for holding the movable member 60 at at least two positions, that is, an operation position and a maintenance position. In the maintenance position, the shaft 20 tilts about 95 ° from the operation position about the tilt axis T as will be described later.

  Further, in the crushing and granulating machine 100 according to the present embodiment, the blade 30 and the motor 40 are supported by the movable member 60 with the tilting axis T interposed therebetween.

  The crushing and granulating machine 100 according to the present embodiment includes the belt 51 as the torque transmission means 50 and further includes a tension adjustment mechanism that adjusts the tension of the belt 51. The tension of the belt 51 is adjusted by moving in the direction.

  The pulverizing and sizing machine 100 is largely divided into a processing unit P that inputs a raw material, pulverizes, sizeds and discharges by a rotating member, and a driving unit M that applies a driving force to the rotating member of the processing unit P. Divided.

  First, the processing unit P of the crushing and sizing machine 100 according to the present embodiment will be described. The processing section P has a cylindrical shape in which an inner cylinder member 64 is accommodated inside an outer cylinder member 65, and has an inlet 100a into which raw materials are introduced above and an outlet 100b from which powder is discharged below. It has a shape. The raw material input from the input port 100 a falls through the space between the outer cylinder member 65 and the inner cylinder member 64.

  The inner cylinder member 64 supports the vertically oriented shaft 20 so as to be rotatable around its central axis. Specifically, bearings 21 and 21 are provided inside the inner cylindrical member 64, and the shaft 20 is supported via the bearings 21 and 21. The upper part of the shaft 20 is accommodated in the inner cylinder member 64. A pulley 22 is provided in the vicinity of the center of the shaft 20, and a portion where the pulley 22 is disposed is also covered with the inner cylinder member 64.

  In the vicinity of the lower end portion of the shaft 20, a blade 30 that applies a striking force or a shearing force to the raw material is detachably mounted via a fixture 32. The blade 30 rotates following the rotation of the shaft 20. Here, the blade 30 is a concept including a knife and an impeller.

  The screen 10 is attached to the outer cylinder member 65 via the screen support 11. The screen 10 has a cylindrical shape in which a large number of holes are provided in the wall, and the cylindrical central axis coincides with the position of the shaft 20 and is disposed so as to accommodate the blade 30 therein. As the shaft 20 rotates, the blade 30 follows and rotates inside the screen 10. A cylindrical cover 66 that prevents the powder from scattering is provided outside the screen 10, and the cover 66 is coupled to the outer cylinder member 65. An opening on the lower side of the cover 66 constitutes the discharge port 100b.

  The raw material input from the input port 100a falls and is stored inside the screen 10, and the blade 30 rotating inside the screen 10 imparts striking force, shearing force, etc. to the raw material, and the raw material is crushed. . And if a particle size becomes smaller than many holes provided in the wall of the screen 10, powder will come out of a hole and will be discharged | emitted from the discharge port 100b.

  The illustrated shaft 20 is provided with a breaker 31 in addition to the blade 30. The breaker 31 rotates following the shaft 20 and coarsely crushes the raw material before the raw material reaches the blade 30.

  The screen 10 and the blade 30 are attached / removed through the discharge port 100b. The shaft 20 and the inner cylinder member 64 are also maintained through the discharge port 100b.

  Both the inner cylinder member 64 and the outer cylinder member 65 are coupled to the connection pipe 63. The connecting pipe 63 is a hollow circular pipe that connects the processing unit P and the driving unit M. The inside of the connection pipe 63 communicates with the inside of the inner cylinder member 64. An endless belt 51 that transmits torque is hung on the pulley 22 accommodated in the inner cylinder member 64, and the belt 51 extends through the inside of the connection pipe 63.

  Next, the drive part M of the pulverization granulator 100 which concerns on this embodiment is demonstrated. A drive unit M is disposed apart from the processing unit P (on the right side of the processing unit P in FIGS. 1 and 2). The drive unit M has a housing 71, and the housing 71 is supported by a support column 73, and the support column 73 stands on the base 74. The base 74 is provided with a caster 75, and the caster 75 is grounded to the ground. The processing unit P and the driving unit M are coupled by a connecting pipe 63.

  A motor 40 is disposed inside the casing 71. An output shaft 41 that outputs torque protrudes from the motor 40, and a pulley 42 is coupled to the output shaft 41. The pulley 42 is hung on the belt 51, and the output of the motor 40 is transmitted to the shaft 20.

  The motor 40 is mounted and fixed on the motor base 62 with the output shaft 41 facing downward. The output shaft 41 passes through a circular opening 62 a provided in the motor base 62, and the pulley 42 is coupled to the output shaft 41. The opening 62 a of the motor base 62 is set to a size that does not interfere with the pulley 42.

  The motor base 62 is coupled to the frame body 61. The frame 61 is configured by combining a rectangular partition wall 61d arranged horizontally and side walls 61a, 61b, 61b, 61c that surround the four sides of the partition wall 61d and arranged vertically, and the motor base 62 is a partition wall. It is supported so that it may rest on 61d (refer FIG. 3). The partition wall 61d is provided with a rectangular opening 61e. When the motor base 62 is disposed on the partition wall 61d, the pulley 42 of the motor 40 passes through the opening 61e and is positioned below the partition wall 61d. (See FIG. 2).

  A connecting pipe 63 is integrally coupled to the frame body 61. Specifically, the flange at the end of the connection pipe 63 is coupled to the side wall 61a of the frame 61 by a bolt. An opening 61g is provided in the side wall 61a, and the opening 61g communicates with the inside of the connection pipe 63 (see FIG. 3). The belt 51, one of which is hung on the pulley 22 of the shaft 20, is hung on the pulley 42 of the motor 40 through the opening 61 g from the inside of the connection pipe 63. With such a configuration of the belt 51, the torque of the motor 40 is transmitted to the shaft 20.

  The motor base 62 is slidably coupled to the frame body 61. The slide mechanism will be described with reference to FIG. The motor base 62 and the partition wall 61 d of the frame body 61 are fastened by bolts 69. The motor pedestal 62 is formed with a female screw portion 62c (see FIG. 3) for receiving the male screw of the bolt 69. A long hole 61f through which the axis of the bolt 69 passes is formed in the partition wall 61d, and the long hole 61f extends in the same direction as the direction in which the belt 51 extends. Therefore, the motor pedestal 62 is movable with respect to the frame body 61 in the direction in which the long hole 61f extends (the left-right direction in FIG.

  Next, a means for giving a propulsive force for moving the motor base 62 against the tension of the belt 51 will be described. A fork 62b projecting from the motor base 62 is provided vertically downward (see FIG. 3). A bolt 68 is fitted in the crotch portion of the fork 62b. The bolt 68 is provided with a flange 68b spaced apart from and parallel to the head 68a, and the head 68a and the flange 68b are arranged so as to sandwich the fork 62b. A tap member 61 i is installed on the side wall 61 c of the frame body 61, and the tap member 61 i has a female screw portion that accommodates a male screw of the bolt 68. The tap member 61i is arranged such that the female screw portion and the crotch of the fork 62b are aligned.

  When the bolt 68 is turned clockwise, the head 68a pushes the fork 62b, so that the motor base 62 moves to the right in FIG. When the bolt 68 is turned counterclockwise, the motor base 62 moves to the left in FIG. 7 by the flange 68b pushing the fork 62b. By rotating the bolt 68, the motor base 62 can move in both the left and right directions in FIG. 7, that is, the distance between the shaft 20 and the motor 40 can be adjusted. By adjusting this distance, the tension of the belt 51 can be adjusted. When the bolt 69 is tightened at the position of the motor base 62 where a predetermined tension is obtained, the position of the motor base 62 with respect to the frame body 61 is fixed, and the tension of the belt 51 is also fixed. In addition, since it drives with the volt | bolt 68, the reduction ratio is large, Therefore The motor base 62 can be moved with a small force, and can be moved against the tension of the belt 51.

  Next, how the frame body 61 is supported will be described with reference to FIGS. 3 and 5. As described above, the connecting pipe 63 is coupled to the side wall 61 a of the frame body 61. A shaft body 67 is coupled to the side wall 61c. The connecting pipe 63 and the shaft body 67 are arranged so as to be coaxially arranged. The frame body 61, the motor base 62 coupled to the frame body 61, the connection pipe 63, and the shaft body 67 constitute a movable member 60. Further, the inner cylinder member 63 and the outer cylinder member 64 coupled to the connection pipe 63 also constitute the movable member 60 (see FIG. 2).

  The connection pipe 63 is rotatably supported by a bearing 78 (see FIG. 5). The bearing 78 is configured to be divided into upper and lower parts, and is arranged so as to sandwich the connecting pipe 63 from above and below. Inside the upper and lower cases 78a and 78b are accommodated a plurality of rollers 78c that come into contact with the outer periphery of the connecting pipe 63, and the upper and lower cases 78a and 78b are coupled to each other after the connecting pipe 63 is sandwiched from above and below. The lower case 78 b is coupled to the bottom plate 71 a of the housing 71. Thereby, the connection pipe 63 is rotatably supported with respect to the housing 71.

  The shaft body 67 is rotatably supported by a bearing 77 (see FIG. 3). The bearing 77 is coupled to the bracket 76, and the bracket 76 is coupled to the bottom plate 71 a of the housing 71. Thereby, the shaft body 67 is rotatably supported with respect to the casing 71.

  The connecting pipe 63 and the shaft body 67 are provided so as to protrude coaxially from the frame body 61. The connecting pipe 63 and the shaft body 67 are supported so as to be rotatable with respect to the casing 71, respectively. Therefore, the frame body 61 is supported so as to be rotatable with respect to the housing 71 around the tilting axis T on which the connecting pipe 63 and the shaft body 67 are on.

  Next, the housing | casing 71 is demonstrated based on FIG. An outer tube 72 is coupled to the housing 71, and the outer tube 72 is disposed in the vicinity of the housing 71 so as to be positioned outside the connection tube 63 coaxially with the connection tube 63. A packing 72a is provided at the end of the outer tube 72, and the packing 72a seals the space between the outer tube 72 and the connecting tube 63 from the outside. Even when the connecting pipe 63 rotates with respect to the outer pipe 72, the sealing of the space between the outer pipe 72 and the connecting pipe 63 is maintained.

  In addition, the base 74, the support | pillar 73, and the housing | casing 71 above the caster 75 which earth | grounds to the ground comprise the fixing member 70 which supports the movable member 60 rotatably (refer FIG. 1). That is, the movable member 60 is supported via the fixed member 70 so as to be rotatable relative to the ground.

  Next, how the movable member 60 including the frame body 61 is rotationally driven by the tilt mechanism 80 with respect to the fixed member 70 will be described with reference to FIGS. 3, 6, and 10.

  A worm wheel 85 is fixedly provided on a shaft body 67 extending from the frame body 61. The worm wheel 85 is disposed at a substantially intermediate position between the side wall 61 c of the frame body 61 and the bearing 77. A worm 84 that meshes with the worm wheel 85 is rotatably provided via bearings 83 and 83. The bearing 83 is coupled to the bottom plate 71 a of the housing 71. A shaft 82 extends from the worm 84, and a handle 81 is provided at the end of the shaft 82, and the handle 81 is disposed outside the housing 71.

  When the handle 81 is rotated clockwise as viewed from the front, a driving force is applied to the worm wheel 85 clockwise as viewed in FIG. The worm wheel 85 is fixed to a shaft body 67, the shaft body 67 is coupled to the frame body 61, and the frame body 61 is supported so as to be rotatable about the tilting axis T. Therefore, when the handle 81 is rotated clockwise in front view, the frame body 61 rotates clockwise around the tilt axis T as viewed in FIG.

  That is, all the members integrally coupled to the frame body 61 such as the motor 40, the motor base 62, the connection pipe 63, the inner cylinder member 64, the outer cylinder member 65, the screen 10, and the shaft 20 are the movable members 60. Rotate integrally with the casing 71.

  By rotating the handle 81, the frame body 61 rotates freely. However, the rotation of the frame body 61 is limited by the stoppers 61h and 71b. The stopper 61h is provided on the frame body 61. When the frame body 61 rotates in the clockwise direction in FIG. 6, the stopper 61h comes into contact with the bottom plate 71a of the housing 71, and the rotation is restricted there (maintenance position. FIG. 10 (a)). The stopper 71b is provided on the bottom plate 71a of the housing 71. When the frame body 61 rotates counterclockwise in FIG. 6, the lower edge of the side wall 61b of the frame body 61 contacts the stopper 71b. Rotation is restricted (operating position; see FIG. 9 (a)). In the present embodiment, the rotation angle from the operation position shown in FIG. 9A to the maintenance position shown in FIG. 10A is set to about 95 °.

  Since the worm gear mechanism is used to drive the movable member 60, the rotation is irreversible. In other words, the movable member 60 is rotated by rotating the handle 81, but the handle 81 is not rotated by the rotation of the movable member 60. This means that the movable member 60 can be held at an arbitrary rotational position by stopping the rotation of the handle 81. Furthermore, if the handle 81 is rotated until the stopper is operated, it means that the movable member 60 is rotated to a position defined in advance by the stopper and is held there.

  Many members are integrally coupled to the rotating movable member 60. Among them, the blade 30 and the motor 40 occupy a large mass. The blade 30 has a large offset amount from the tilt axis T. In the crushing and sizing machine 100 according to the present embodiment, the blade 30 and the motor 40 are arranged so as to face each other with the tilting axis T interposed therebetween. Therefore, compared with the case where the blade 30 and the motor 40 are disposed on the same side, the static imbalance around the tilt axis T is reduced (that is, the position of the center of gravity of the movable member 60 is close to the tilt axis T). Therefore, the driving force required to rotate the movable member 60 is maintained substantially constant without being affected by the posture of the movable member 60 (that is, the position of the center of gravity).

  Next, the lock mechanism 90 that locks the posture of the movable member 60 will be described with reference to FIG. As described above, the movable member 60 is configured to be rotatable about the tilt axis T, and can be stopped at an arbitrary position (that is, an intermediate position where the stopper is not operated). However, it is dangerous to perform the pulverization and sizing process by rotating the blade 30 while tilting to the intermediate position. Therefore, the lock mechanism 90 is configured so that the pulverization and sizing process can be performed only after being fixed at a predetermined position, and the pulverization and sizing process is stopped when the movable member 60 is rotated during operation. Is configured.

  The lock pin 91 is configured such that the pin 91a is accommodated in the outer cylinder 91b so as to be able to advance and retract. Inside the outer cylinder 91b, the pin 91a is always given an elastic force by a spring toward the left side of FIG. The lock pin 91 shown in FIG. 8 is in a forward moving state. On the other hand, when the handle 91c is pulled and twisted by 90 °, the lock pin 91 is kept retracted.

  The outer pin 91 b of the lock pin 91 is fixed to the bracket 76, and the bracket 76 is coupled to the bottom plate 71 a of the housing 71. A handle 91 c of the lock pin 91 is arranged outside the housing 71 so that it can be operated outside the housing 71. Further, a block 92 is coupled to the side wall 61c of the frame 61, and a hole 92a is provided so as to be concentric with the pin 91a when the movable member 60 is in the operating position. The diameter of the hole 92a is set so that the pin 91a can be fitted without looseness. The pin 91a is inserted and fitted into the hole 92a only when the pin 91a is advanced, and when the pin 91a is retracted, the pin 91a comes out of the hole 92a. In the state shown in FIG. 8, since the rotation of the movable member 60 is locked, even if the handle 81 of the tilting mechanism 80 is to be turned, it cannot be turned.

  Further, the crushing and sizing machine 100 is provided with limit switches 93 and 94. The limit switch 94 is a switch that detects the posture of the movable member 60. When the lower edge of the side wall 61b of the frame body 61 is lowered until it hits the stopper 71b, that is, when the movable member 60 is in the operating position. It is configured to be turned on for the first time.

  The limit switch 93 is a switch that detects the state of the lock pin 91 of the lock mechanism 90, and is configured such that when the lock pin 91 has moved forward, the actuator hits the end of the pin 91a and is turned on.

  The motor 40 is configured to operate only when both the limit switches 93 and 94 are turned on. This means that the motor 40 operates only when the movable member 60 is in the operating position and the lock pin 91 locks the rotation of the movable member 60. Therefore, when the lock pin 91 is pulled while the motor 40 is operating, the limit switch 93 is turned OFF, and the motor 40 is stopped.

  Next, the maintenance method of the crushing and sizing machine 100 according to the present embodiment will be described with reference to FIGS. When the raw material is pulverized and sized using the pulverizing and sizing machine 100, the posture of the movable member 60 is the operating position shown in FIG. At this time, inside the housing 71, as shown in FIG. 9A, the frame body 61 hits the stopper 71b, and the posture of the movable member 60 is maintained in this state. Although not shown in FIG. 9, the above-described locking mechanism 90 is operated, and even if the handle 81 is turned, the movable member 60 does not rotate.

  When the screen 10 and the blade 30 of the crushing and sizing machine 100 are removed or replaced for cleaning, the handle 81 of the tilting mechanism 80 is turned until the stopper is operated, and the posture of the movable member 60 is shown in FIG. The maintenance position shown. In this maintenance position, the movable member 60 is inclined about 95 ° from the operation position. Therefore, it is easy to access the inside from the discharge port 100b. In addition, since the shaft 20 is slightly tilted from the horizontal, the operator can safely work without replacing the blade 30 attached to the shaft 20 without being dropped. .

  Further, when the movable member 60 is in the maintenance position, the lower side of the motor 40 faces the front of the crushing and granulating machine 100 as shown in FIG. That is, the lower side of the frame body 61 can be accessed from the front, that is, the adjustment work and replacement work of the belt 51 are very easy.

  In this embodiment, the movable member 60 is configured to rotate about 95 °, but may be configured to tilt at least 90 °. This facilitates maintenance of the inside of the processing unit P through the discharge port 100b, and also facilitates maintenance of the lower member of the frame body 61.

  Further, in the present embodiment, the belt 51 is employed as the torque transmission means. As the belt 51, a belt having an arbitrary shape such as a flat belt and a V-belt can be selected. Of course, other mechanisms can be used, and for example, torque can be transmitted by a chain or a drive shaft.

  In the present embodiment, the lock member 90 is used to lock the movable member 60 at the operating position. However, the movable member 60 in the maintenance position is configured to be locked by separately using holes provided in different members arranged coaxially in the maintenance position and pins that pass through these holes without rattling. be able to.

  In this embodiment, a worm gear mechanism is employed as the tilting mechanism 80. However, other mechanisms can be employed, and for example, a bevel gear with an increased reduction ratio can be used.

100 Crushing and Sizing Machine 10 Screen 100a Input Port 100b Discharge Port 20 Shaft 30 Blade 40 Motor 50 Torque Transmitting Means 51 Belt 60 Movable Member 70 Fixed Member 71 Case 80 Tilt Mechanism 84 Warm 85 Warm Wheel

Claims (4)

A cylindrical screen provided with a number of holes in the wall through which the pulverized and sized powder passes;
A shaft rotatably disposed along a central axis of the screen;
A blade that is detachably provided at an end of the shaft, and rotates following the shaft in the screen;
A motor that generates torque;
Torque transmission means for transmitting the torque of the motor to the shaft;
A movable member that integrally supports the screen, the shaft, and the motor;
A fixed member that supports the movable member so as to be rotatable about a tilt axis perpendicular to the shaft;
And a tilting mechanism that tilts the movable member around the tilting axis. Holding means for holding the movable member at at least two positions of an operation position and a maintenance position;
In the operating position, the shaft is oriented in the vertical direction with the blade on the bottom,
2. The pulverizing and granulating machine according to claim 1, wherein at the maintenance position, the shaft is tilted at least 90 ° from the operation position around the tilting axis. The crushing and sizing machine according to claim 2, wherein the blade and the motor are supported by the movable member so as to face each other with the tilting shaft interposed therebetween. The torque transmission means comprises a belt;
A tension adjusting mechanism for adjusting the tension of the belt;
The crushing and sizing machine according to claim 3, wherein the tension adjusting mechanism adjusts the tension of the belt by adjusting a distance between the shaft and the motor.

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