JP4140089B2 - Milling machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a small-sized flour mill used for milling processing of grains such as rice, wheat, soybeans, corn, dried mushrooms, boiled and dried, eggshell, dried shrimp, tea leaves, and herbal medicines.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as this type of milling machine, one having a structure in which an object to be crushed such as cereal is pulverized by a crushing portion composed of a fixed crusher and a rotary crusher.
[0003]
[Problems to be solved by the invention]
However, in the above conventional structure, cleaning of the crushing gap between the fixed crusher and the rotary crusher and the vicinity thereof is very troublesome, and the operability is reduced accordingly. is doing.
[0004]
[Means for Solving the Problems]
The present invention aims to solve such problems. Among the present inventions, the invention described in claim 1 includes a hopper portion into which a material to be crushed is charged, and a cover material charged into the hopper portion. A crushing part composed of a fixed crusher and a rotary crusher capable of crushing the pulverized product, a driving unit for rotating the rotary crusher, and a discharge for discharging the crushed material crushed by the crushing unit An attachment / detachment mechanism that attaches / detaches the rotary crusher with respect to the main shaft rotated by the drive unit by placing or lifting the rotary crusher; and A rotation transmission mechanism including a transmission pin and a transmission fitting portion for transmitting rotation between the main shaft and the rotary crusher, and a locking pin and a locking portion for engaging the main shaft and the rotary crusher. constituted by the locking mechanism, and, as the detachable mechanism, projecting form the transmission pins in the spindle Both of them form a transmission fitting part in which the transmission pin can be inserted into and removed from the rotary crusher, and an insertion hole is formed in the main shaft, and a lower end of the rotary crusher can be inserted into the insertion hole. the locking rod is protruded to an upper end portion vertically movably arranged, it is arranged a reduction deformable spring member during lifting of the upper end portion of the lock rod thereby enabling suppression of the lock rod downwardly, the rotary to ulcer The board is formed with a fitting hole that can be fitted to the main shaft, and a locking portion is formed on the inner peripheral surface of the fitting hole. Further, the main shaft extends from the inner peripheral surface of the insertion hole to the outer peripheral surface of the main shaft. A locking pin is formed, and a locking pin whose outer end can be fitted in the locking portion is inserted into the locking hole so as to protrude and retract, and a pressure receiving portion is formed on the inner end of the locking pin. Forming a pressing portion capable of pressing the pressure receiving portion at a lower end portion of the lock rod, and the locking pin when the rotary crusher is lifted to the locking portion In mill, characterized in that it is constituted by forming a Mododo portion consisting tapered surface for immersive locking pin to press the outer end.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 to FIG. 21 show an embodiment of the present invention, which is roughly divided into a hopper part 1, a crushing part 2, a drive part 3, a discharge part 4, and a machine base part 5. In this case, the machine base part 5 is A leg frame 5b is attached to the machine base plate 5a.
[0006]
Further, as shown in FIG. 2, the hopper portion 1 is formed with a funnel-shaped introduction tube 1b in the upper case body 1a of the three case bodies 1a, and can open and close the inlet port 1c on the upper portion of the introduction tube 1b. A lid member 1d is attached, and an insertion hole 1e through which a pushing member (not shown) that pushes the object W to be crushed downward into the lid member 1d can be inserted is formed.
[0007]
The crushing portion 2 includes a fixed crusher 6 and a rotary crusher 7, and crushing irregularities 6 a are formed on the surface of the fixed crusher 6. Concave and convex strips 7 a are formed, and the rotary crusher 7 is configured to rotate by the drive unit 3.
[0008]
In this case, as shown in FIGS. 2 and 6, the intermediate base plate 5c is arranged on the machine base plate 5a by the separation shaft 5d, the bearing cylinder member 8 is provided vertically on the intermediate base plate 5c, and the slide cylinder is provided on the bearing cylinder member 8. 8a is inserted into the slide cylinder 8a so as to be slidable vertically, the main shaft 9 is vertically mounted on the slide cylinder 8a by a bearing 8b, and the rotary crusher 7 is detachably attached to the main spindle 9 via an attaching / detaching mechanism 10. The fixed crusher 6 is attached to the member 8 with the crushing gap H formed between the opposing surfaces above the rotary crusher 7. In this case, as shown in FIGS. An annular fitting groove 8c is formed, and four upper opening grooves 8d reaching the annular fitting groove 8c are formed, and the outer periphery of the fixed crusher 6 can be fitted into the upper opening groove 8d from above to make an annular fitting. A fitting rod 6b that can be fitted into the groove 8c is formed, and a stopper 8e that contacts the fitting rod 6a is formed on the bearing cylinder member 8, Teisu 潰盤 6 is constituted by detachably attached by swivel fitting removal action of the annular groove 8c and fitted collar 6a on the bushing member 8.
[0009]
12 and 13, the attaching / detaching mechanism 10 includes a rotation transmission mechanism 13 including a transmission pin 11 and a transmission fitting portion 12 for transmitting rotation between the main shaft 9 and the rotary crusher 7, and the main shaft 9. The locking mechanism 16 includes a locking pin 14 and a locking portion 15 that are locked with the rotary crushing disk 7. In this case, two transmission pins 11 are formed to project from the main shaft 9 and the rotary crushing is performed. In this case, a hole-shaped transmission fitting portion 12 such as a hole shape or a groove shape into which the transmission pin 11 can be inserted and removed is formed, and an insertion hole 17 is formed in the upper portion of the main shaft 9 and the rotation is performed. A lock rod 18 whose lower end can be inserted into the insertion hole 17 is disposed on the crusher 7 so that the upper end protrudes and can be slid up and down, and a conical body 19 is attached to the upper end of the lock rod 18. When the upper end of the lock rod 18 is lifted, Alternatively, a spring member 20 that can be reduced and deformed by a pulling external force is provided, and a fitting hole 21 that can be externally fitted to the main shaft 9 is formed in the rotary crusher 7 and locked to the inner peripheral surface of the fitting hole 21. 3, and three locking holes 23 are formed in the main shaft 9 from the inner peripheral surface of the insertion hole 17 to the outer peripheral surface of the main shaft 9, and the outer end of the locking hole 23 is connected to the locking portion 15. A fitting pin 14 that can be inserted and retracted is inserted through the fitting pin 14 so that the semi-spherical pressure receiving portion 14 a can be formed at the inner end of the locking pin 14, and the pressure receiving portion 14 a can be pressed at the lower end of the lock rod 18. A taper-shaped pressing portion 18a is formed, and when the rotary crusher 7 is lifted to the locking portion 15, the outer end portion of the locking pin 14 is pressed and the locking pin 14 is retracted. 15a is formed, and a friction cylinder 25 is slidably provided at the bottom of the insertion hole 17, and the friction cylinder 25 is The weak spring 25a than the spring member 20 which bring to provided, and configured to prevent the floating of the locking pin 14 by repression pressure receiving portion 14a of the locking pin 14 by the upper surface of the friction tube 25.
[0010]
Thus, when the rotary crusher 7 is removed in the use state of FIG. 13, when the cone 19 provided at the upper end of the lock rod 18 is lifted, the transmission pin 11 is moved from the transmission fitting portion 12. Only the lock rod 18 is lifted and slid by reducing and deforming the spring member 20 due to the weight of the rotary crusher 7 while being pulled out, so that the locking pin 14 can be retracted inward and engaged. The outer end portion of the locking pin 14 is abutted and pressed by the taper-like return portion 15a of the locking portion 15 so that the locking pin 14 is retracted into and retracted from the locking hole 23, and as shown in FIG. The rotary crusher 7 can be removed from the main shaft 9, and when the rotary crusher 7 is attached to the main shaft 9, the rotary crusher 7 is provided at the upper end portion of the lock rod 18 when the locking pin 14 is immersed. The outer peripheral surface of the upper end portion of the main shaft 9 with the formed cone 19 When the fitting hole 21 is externally fitted, the transmission pin 11 is inserted into the transmission fitting portion 12, and the pressure receiving portion 14 a at the inner end portion of the locking pin 14 protrudes by the pressing portion 18 a at the lower end portion of the lock rod 18. When pressed, the outer end portion of the locking pin 14 can be fitted into the locking portion 15 and the distal end portion of the locking pin 14 is fitted into the locking portion 15.
[0011]
Reference numeral 26 denotes a crushing gap adjusting mechanism, in which the rotary crusher 7 is disposed so as to be movable toward and away from the fixed crusher 6, and between the rotary crusher 7 and the fixed crusher 6. The crushing gap H of the camshaft portion 27 and the inclined cam portion 28 are adjustable. The main shaft 9 for rotating the rotary crushing disc 7 is moved by the camshaft portion 27 and the inclined cam portion 28 and tightened and rotated. In this case, as shown in FIGS. 6, 8, and 9, groove-like inclined cam portions 28, 28 extending obliquely in the vertical direction are formed on both opposing surfaces of the bearing cylinder member 8. Formed on both opposing surfaces of the slide cylinder 8a, a cam shaft portion 27 slidably fitted to one inclined cam portion 28 is formed in the middle portion of the operation shaft 29, and the operation shaft A piece member 31 is interposed between the outer peripheral surface of the bearing tube member 8 and the operation shaft 29 with the tip of 29 as a screw portion. Then, a guide shaft portion 32 that can be screwed to one female screw portion 30 and can be slidably fitted to the other inclined cam portion 28 is screwed and fixed to the other female screw portion 30, and the case body at the middle portion. A clearance hole 33 that allows the operation shaft 29 to protrude outward is formed in the same shape as the inclined cam portion 28 in 1a. Instead of the screw fixing structure of the operation shaft 29, a structure in which the operation shaft 29 is fixed by a spring pressure brake mechanism can be used.
[0012]
When the operation shaft 29 is moved along the inclined cam portion 28 after the operation shaft 29 is loosely rotated, the cam shaft portion 27 and the inclined cam portion 28 act together with the main shaft 9 and the slide cylinder 8a. The rotary crusher 7 is also moved up and down, whereby the crushing gap H between the fixed crusher 6 and the rotary crusher 7 is changed and adjusted. When the operating shaft 29 is tightened and rotated after the change, the bearing cylinder The member 8 is clamped by the piece member 31 and the slide cylinder 8a, and the rotary crusher 7 is fixed in position.
[0013]
Further, as shown in FIGS. 2 to 5, the stationary crusher 6 and the rotary crusher 7 are fixedly provided with an introduction receiving cylinder 34 at the center of the fixed crusher 6. An introduction path 35 is formed by being connected to 1 b, and four rows of stepped coarse grinding blades 34 a are formed on the inner peripheral surface of the introduction receiving cylinder 34, and the crushing irregularities 6 a are formed on the surface of the fixed crusher 6. Are formed, and a plurality of introduction grooves 6b through which the object to be crushed W can be introduced into the crushing gap H are formed on the inner side of the fixed crusher 6. An introduction receiving cylinder 36 is erected integrally at the portion, and four rows of stepped coarse grinding blades 36 a are formed on the outer peripheral surface of the introduction receiving cylinder 36. The strips 7a are formed, that is, in this case, a plurality of concave grooves M and convex portions F extending outwardly from the inside are continuously formed on the surface of the stationary crusher 6 and the rotary crusher 7. To form a 潰凹 ridges 6a · 7a, and the groove surfaces of the groove M of the scan 潰凹 projections 6a · 7a, as shown in FIG. 20 and FIG. 21 are formed in an arc groove surface. That is, the groove surface of the concave groove C formed in the stationary and horizontal crusher D and B shown in FIG. 22 as the conventional proposed structure is formed into a substantially triangular V-shaped groove having a square bottom C _1. It is different from what it is.
[0014]
In this case, as shown in FIG. 4, the crush irregularities 7 a of the rotary crusher 7 are divided into eight stripe base lines L inclined at a predetermined angle rearward in the rotation direction with respect to the radial line K of the rotary crusher 7. And is formed with a groove pattern based on a plurality of base lines G that are parallel to the muscle base line L and forwardly spaced in a predetermined arrangement pitch in each crushing area A and parallel to the muscle base line L. Further, the crushing uneven strip 6a of the fixed crusher 6 is formed with the same groove pattern as the crushing uneven strip 7a of the rotating crusher 7, so that it rotates with the crushing uneven strip 6a of the fixed crusher 6. The crushing concave and convex strips 7a of the crushing plate 7 are symmetrically arranged with a crushing gap H between them, and as shown in FIG. 20, the arcuate groove surface of the concave groove M is an arc having a radius of 2 mm to 3 mm. And the above-mentioned muscle base line L with respect to the radial line K of the rotary crusher 7 as shown in FIG. A line inclined at an inclination angle θ = 8 degrees to 20 degrees backward in the rotation direction, in this case, θ = 15 degrees, and an arrangement pitch P between the plurality of base lines G is set to 1.5 mm to 2.5 mm. .
[0015]
2 and 6, the drive unit 3 has a rotation motor 37 attached to the lower surface of the machine base plate 5a, a drive gear 37a attached to the main shaft of the rotation motor 37, and the machine base plate 5a and the middle base plate 5b. The intermediate gear 38 is attached to the intermediate shaft 38a, the driven gear 39 is attached to the lower end portion of the main shaft 9, and the main shaft 9 is rotated by the rotation motor 37 via the gears 37a, 38, 39 and crushed. When the clearance H is adjusted, the driven gear 39 is configured to slide along the tooth surface of the intermediate gear 38 together with the main shaft 9.
[0016]
Further, in this case, as shown in FIGS. 2 and 7, the discharge portion 4 forms an arc-shaped discharge port 4a in the bearing cylinder member 8 and the middle case body 1a so as to face the crushing gap H, and the rotary crusher 7, a brush body 4b is projected, a discharge recess 4c is formed in the middle case body 1a, and an extraction container 40 is detachably disposed in the discharge recess 4c.
[0017]
Reference numeral 41 denotes a shutter member which is provided so as to be able to open and close the introduction path 35 between the hopper portion 1 and the crushing portion 2 and interlocks the opening / closing operation of the lid member 1d and the opening / closing operation of the shutter member 41. A mechanism 42 is provided, and a displacement absorbing mechanism 43 capable of absorbing a displacement difference between the opening / closing operation of the lid member 1d and the opening / closing operation of the shutter member 41 is provided in the interlocking mechanism 42.
[0018]
The interlocking mechanism 42 and the displacement absorbing mechanism 43 apply a frictional force between the lid member 1d side and the operating link 44 side for moving the shutter member 41 forward and backward, and enable mutual interlocking. A friction member 45 that allows sliding by a force equal to or greater than the frictional force and releases mutual interlocking is provided. In this case, a raised bearing portion 46 is provided on the upper surface of the case body 1a as shown in FIGS. Two bearing portions 47, 47 capable of interposing a raised bearing portion 46 are integrally formed on the lid member 1d, and a fulcrum shaft 48 is installed between the bearing portions 47, 47 to raise the case body 1a. The shaft cylinders 49 and 49 are loosely fitted on both sides of the bearing section 46, the raised bearing section 46 is pivotally mounted on the fulcrum shaft 48 via the shaft cylinders 49 and 49, and the operation link 44 is arranged in the middle of the fulcrum shaft 48. The base cylinder part 44a is inserted and the base cylinder part 44a of the operation link 44 is inserted. A friction member 45 is interposed between each side surface and the opposing surface of the shaft tube 49. The friction member 45 has a spring elasticity with a plurality of radial positions on the circumferential seating surface of the flat washer so that irregularities are repeated at a plurality of radiation positions. A wave washer called a so-called wave washer is used. Of course, as the friction member 45, a friction member 45 that performs other slip clutch action such as a slip ring or a spring washer having spring elasticity against an axial compressive load is used. The friction member 45 can always provide a distance Q between the opposed surfaces of the shaft cylinders 49 and 49 and the bearing portions 47 and 47 and between the side surfaces of the base cylinder portion 44a of the operating link 44 and the opposed surfaces Q of the shaft cylinders 49 and 49. A frictional force is applied, and a bearing hanging part 50 is formed on the funnel-shaped introduction cylinder 1b. The shutter member 41 is rotatably supported on the bearing hanging part 50 by a turning shaft 51. Are constituted by hung the connecting rod 52 between the base 41b and the operating link 44 of the shutter member 41 to form the openable closing portion 41a of the passage 35 to the first tip.
[0019]
14 and 19, when the lid member 1d is moved at an opening angle around the fulcrum shaft 48 as indicated by an imaginary line in FIG. 14, the frictional friction of the friction member 45 is initially caused when the lid member 1d is opened. Actuated by the frictional force generated between the opposed surfaces Q of the shaft cylinders 49 and 49 and the bearing portions 47 and 47 due to the action and between the respective side surfaces of the base cylinder portion 44a of the operating link 44 and the opposed surfaces Q of the shaft cylinders 49 and 49. The link 44 rotates in the direction of the arrow, and in conjunction with the rotation of the operation link 44, the shutter member 41 pivots around the pivot shaft 51 from the open state of FIGS. 17 and 18 to the closed state of FIG. Then, when the shutter member 41 abuts against the stopper surface 35a on the inner surface of the introduction path 35 to complete the closing, and further, the lid member 1d is operated to open the angle, the shaft cylinders 49 and 49 and the bearings are caused by the elastic frictional action of the friction member 45. Part 47.4 Between the opposed surfaces Q and the side surfaces of the base cylinder portion 44a of the operating link 44 and the frictional forces generated between the opposed surfaces Q of the shaft cylinders 49, 49 are applied. The sliding of the member 1d is allowed, and the mutual interlocking between the lid member 1d and the operation link 44 can be released. The lid member 1d is raised by opening about 100 degrees, and conversely, the lid member 1d is closed. When the lid member 1d is moved at an angle, the distance Q between the opposed surfaces of the shaft cylinders 49 and 49 and the bearing portions 47 and 47 due to the elastic frictional action of the friction member 45 and the side surfaces of the base cylinder portion 44a of the operation link 44 are initially detected. The working link 44 is reversely rotated by the frictional force generated between the opposing surfaces Q of the shaft cylinders 49 and 49, and in conjunction with the reverse rotation of the operating link 44, the closed state of FIG. In the open state, the shutter member 41 pivots about the pivot shaft 51. When the operation link 44 comes into contact with the stopper surface 35b formed on the case body 1a to complete the opening operation of the shutter member 41, and the lid member 1d is further operated at the closing angle, the frictional member 45 causes the elastic frictional action. A force greater than the frictional force generated between the opposing surfaces Q of the shaft cylinders 49 and 49 and the bearing portions 47 and 47 and between the side surfaces of the base cylinder portion 44a of the operating link 44 and the opposing surfaces Q of the shaft cylinders 49 and 49. The lid member 1d is allowed to slide between the opposing surfaces Q, and the mutual interlocking between the lid member 1d and the operation link 44 can be released. Therefore, the opening / closing operation of the lid member 1d and the opening / closing operation of the shutter member 41 It is possible to absorb the difference in displacement.
[0020]
Since this embodiment is configured as described above, grains W such as rice, wheat, soybeans, corn and the like, dried mushrooms, boiled, eggshell, dried shrimp, tea leaves, Chinese herbal medicine raw materials, etc. to the hopper 1 4 and the drive unit 3 rotates the rotary crusher 7 counterclockwise in FIG. 4, in other words, it can be considered that the fixed crusher 6 is relatively rotated counterclockwise in FIG. The object to be crushed W is sent to the outside with centrifugal force while being crushed by the crushing gap H of the crushing part 2 composed of the fixed crusher 6 and the rotating crusher 7, and is crushed. At this time, the rotary crusher 7 is attached to and detached from the main shaft 9 rotated by the drive unit 3 by placing or lifting the rotary crusher 7. A mechanism 10 is disposed, and the attachment / detachment mechanism 10 is rotated between the main shaft 9 and the rotary crusher 7. A rotation transmission mechanism 13 including a transmission pin 11 and a transmission fitting portion 12 that perform transmission, and a locking mechanism 16 including a locking pin 14 and a locking portion 15 that lock the main shaft 9 and the rotary crusher 7. Since the rotary crusher 7 is constructed, the rotary crusher 7 can be easily detached from the main shaft 9 by the lifting operation of the rotary crusher 7, and the crushing gap H between the fixed crusher 6 and the rotary crusher 7 or the vicinity thereof. The part can be easily cleaned and the rotary crusher 7 can be easily attached to the main shaft 9 by the mounting operation of the rotary crusher 7. In particular, the rotation of the main shaft 9 is caused by the transmission pin 11 and the transmission fitting. The rotation transmission mechanism 13 including the portion 12 is used, and the main shaft 9 and the rotary crusher 7 are locked by the locking mechanism 16 including the locking pin 14 and the locking portion 15. Can rotate reliably and rotates with the main shaft 9 It is possible to increase the coupling strength between the 潰盤 7, it is possible to correspondingly improve operability.
[0021]
Further, in this case, as the attachment / detachment mechanism 10, the transmission pin 11 protrudes from the main shaft 9, the transmission fitting portion 12 into which the transmission pin 11 can be inserted and removed is formed in the rotary crusher 7, and the main shaft 9 An insertion hole 17 is formed in the upper portion, and a lock rod 18 whose lower end portion can be inserted into the insertion hole 17 is provided on the rotary crusher 7 so that the upper end portion protrudes and can be slid up and down. And a spring member 20 that can be reduced and deformed by the weight of the rotary crusher 7 when the upper end of the lock rod 18 is lifted or by a pulling external force, and the main shaft 9 is externally fitted to the rotary crusher 7. A possible fitting hole 21 is formed, a locking portion 15 is formed on the inner peripheral surface of the fitting hole 21, and a locking hole 23 extending from the inner peripheral surface of the insertion hole 17 to the outer peripheral surface of the main shaft 9 on the main shaft 9. And the outer end of the locking hole 23 can be fitted into the locking portion 15. 14 is formed so that the pressure receiving portion 14a is formed at the inner end portion of the locking pin 14 and the tapered pressing portion 18a capable of pressing the pressure receiving portion 14a is formed at the lower end portion of the lock rod 18. The locking portion 15 is formed by forming a return portion 15a having a tapered surface that presses the outer end portion of the locking pin 14 when the rotary crusher 7 is lifted to immerse the locking pin 14. Therefore, the structure of the attaching / detaching mechanism 10 can be simplified, and the locking pin 14 is protruded by the lock rod 18 to be immersed in the locking portion 15, and the pressure receiving portion 14 a at the inner end portion of the locking pin 14 is By pressing with the pressing portion 18a at the lower end of the lock rod 18, the main shaft 9 and the rotary crusher 7 can be securely pulled out and locked, and the outer end of the locking pin 14 is pressed. Then, the return portion 15a for immersing the locking pin 14 Since the conical tapered surface is formed, the rotary crusher 7 can be easily attached to the main shaft 9, and the detachability operability between the main shaft 9 and the rotary crusher 7 is further improved. be able to.
[0022]
The present invention is not limited to the above embodiment, and the structure, form, material, and the like of the hopper portion 1, the crushing portion 2, the drive portion 3, the discharge portion 4, and the attaching / detaching mechanism 10 are appropriately changed and designed. It is what is done.
[0023]
【The invention's effect】
As described above, according to the present invention, the attachment / detachment mechanism for attaching / detaching the rotary crusher to / from the main shaft rotated by the drive unit by placing or lifting the rotary crusher. A rotation transmission mechanism comprising a transmission pin and a transmission fitting portion for transmitting rotation between the main shaft and the rotary crusher, and a mechanism for engaging the main shaft with the rotary crusher. Since it consists of a locking mechanism consisting of a locking pin and a locking part, the rotary crusher can be easily removed from the main shaft by the lifting operation of the rotary crusher, and between the fixed crusher and the rotary crusher The crushing gap and the vicinity thereof can be easily cleaned and the rotary crusher can be easily attached to the main shaft by the mounting operation of the rotary crusher. It is made by a rotation transmission mechanism consisting of joints and rotates with the main shaft Since the locking with the crusher is performed by a locking mechanism consisting of a locking pin and a locking part, the rotary crusher can be rotated reliably and the connection strength between the main shaft and the rotary crusher can be increased. Operability can be improved accordingly , and as the attachment / detachment mechanism, a transmission pin protrudes from the main shaft and a transmission fitting portion into which the transmission pin can be inserted and removed is formed in the rotary crusher, and The lock rod is formed in the upper portion of the main shaft and the lower end of the rotary crusher can be inserted into the insertion hole so that the upper end protrudes and can be slid up and down. A spring member that can be elastically pressed and can be reduced and deformed by the weight of the rotary crusher when lifting the upper end of the lock claw or by an external force, and a fitting hole that can be externally fitted to the main shaft is provided in the rotary crusher. In addition to forming a locking part on the inner peripheral surface of the fitting hole, A locking pin that extends from the inner peripheral surface of the insertion hole to the outer peripheral surface of the main shaft is formed in the main shaft, and a locking pin whose outer end can be fitted into the locking portion is inserted into the locking hole so as to protrude and retract freely. A pressure receiving portion is formed at the inner end portion of the locking pin and a tapered pressing portion capable of pressing the pressure receiving portion is formed at the lower end portion of the lock rod, and the locking pin is raised when the rotary crusher is lifted on the locking portion. Since the back end portion is formed of a taper surface that presses the outer end of the lock pin to insert the lock pin, the structure of the attachment / detachment mechanism can be simplified and the lock pin can be used to lock the lock pin. , So that the main shaft and the rotary crusher are securely pulled out and locked by pressing the pressure receiving portion of the inner end of the locking pin with the pressing portion of the lower end of the lock rod. And a return movement part that presses the outer end portion of the locking pin and immerses the locking pin. Is formed on the tapered surface, the rotary crusher can be easily attached to the main shaft, and the detachability operability between the main shaft and the rotary crusher can be further improved.
[0024]
As described above, the intended purpose can be sufficiently achieved.
[Brief description of the drawings]
FIG. 1 is an overall side view of an embodiment of the present invention.
FIG. 2 is a partial longitudinal sectional view of an embodiment of the present invention.
FIG. 3 is a partially exploded perspective view of an embodiment of the present invention.
FIG. 4 is a front view of a rotary crusher according to an embodiment of the present invention.
FIG. 5 is a front view of a fixed crusher according to an embodiment of the present invention.
FIG. 6 is a partial longitudinal sectional view of an embodiment of the present invention.
FIG. 7 is a partial plan sectional view of an embodiment of the present invention.
FIG. 8 is a partial plan sectional view of an embodiment of the present invention.
FIG. 9 is a partial front view of an embodiment of the present invention.
FIG. 10 is a partial plan sectional view of an embodiment of the present invention.
FIG. 11 is a partial cross-sectional view of an embodiment of the present invention.
FIG. 12 is a partially exploded cross-sectional view of an embodiment of the present invention.
FIG. 13 is a partial sectional view of an embodiment of the present invention.
FIG. 14 is a partial sectional view of an embodiment of the present invention.
FIG. 15 is a plan view of an embodiment of the present invention.
FIG. 16 is a partial plan sectional view of an embodiment of the present invention.
FIG. 17 is a partial perspective view of an embodiment of the present invention.
FIG. 18 is a partial plan sectional view of an embodiment of the present invention.
FIG. 19 is a partial plan sectional view of an embodiment of the present invention.
FIG. 20 is a partial cross-sectional view of a rotary crusher according to an embodiment of the present invention.
FIG. 21 is an explanatory cross-sectional view of a crushing gap portion according to an embodiment of the present invention.
FIG. 22 is an explanatory sectional view of a crushing gap portion of a preceding proposed structure.
[Explanation of symbols]
W To-be-ground object H Crushing space 1 Hopper part 2 Crushing part 3 Drive part 4 Discharge part 6 Fixed crushing board 7 Rotating crushing machine 9 Main shaft 10 Detachment mechanism 11 Transmission pin 12 Transmission fitting part 17 Insertion hole 18 Lock rod 18a Pressing part 20 Spring member 21 Fitting hole 15 Locking part 15a Returning part 23 Locking hole 14 Locking pin 14a Pressure receiving part

Claims (1)

A hopper part into which the material to be crushed is charged, a crushing part comprising a fixed crusher and a rotary crusher capable of crushing the material to be crushed into the hopper, and a drive for rotating the rotary crusher And a discharging unit for discharging the material pulverized by the crushing unit, and placing the rotary crusher on the main shaft rotated by the drive unit. Alternatively, an attachment / detachment mechanism that is attached / detached by a lifting operation is provided, and the attachment / detachment mechanism includes a rotation transmission mechanism including a transmission pin and a transmission fitting portion that transmit rotation between the main shaft and the rotary crusher, and the main shaft and the A locking mechanism comprising a locking pin and a locking portion for locking with the rotary crusher, and as the attachment / detachment mechanism, a transmission pin is formed to project from the main shaft, and the rotary crusher is A transmission fitting part that allows insertion and removal of the transmission pin is formed, and an insertion hole is formed in the main shaft. In addition, a lock rod whose lower end can be inserted into the insertion hole is disposed on the rotary crusher so that the upper end protrudes and can be moved up and down, and the lock rod can be pressed downward so that the upper end of the lock rod A spring member that can be reduced and deformed at the time of lifting is disposed, and a fitting hole that can be externally fitted to the main shaft is formed in the rotary crusher, and a locking portion is formed on the inner peripheral surface of the fitting hole, Further, a locking hole extending from the inner peripheral surface of the insertion hole to the outer peripheral surface of the main shaft is formed in the main shaft, and a locking pin whose outer end can be fitted into the locking portion can be projected and retracted into the locking hole. A pressure receiving portion is formed at the inner end of the locking pin, and a pressing portion capable of pressing the pressure receiving portion is formed at the lower end of the lock rod, and the rotary crusher is formed at the locking portion. this being configured to form a Mododo portion consisting tapered surface of the outer end portion is pressed to immersive locking pin engaging pins during lifting of Milling machine and said.

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