JP2000070740A - Flour mill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely rotate a rotary automated mortar and to enhance the connection strength of a spindle and the rotary automated mortar by executing the rotation of the spindle by mean of a rotation transmission mechanism consisting of a transmission pin and a transmission fitting part and executing the detaining of the spindle and the rotary automated mortar by means of a detaining mechanism consisting of a detaining pin and a detecting part. SOLUTION: A attaching/detaching mechanism 10 which attaches and detaches the rotary automated mortar 7 to and from the spindle 9 driven by a drive section by the loading or lifting action of the rotary automated mortar 7 is disposed. This attaching/detaching mechanism 10 comprises the rotation transmission mechanism 13 which consists of the transmission pin 11 for executing the rotation transmission of the spindle 9 and the rotary automated mortar 7 and the transmission fitting part 13 and the detaining mechanism 16 which consists of the detaining pin 14 for executing the detaining of the spindle 9 and the rotary automated mortar 7 and the detaining part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-sized mill used for milling cereals such as rice, wheat, soybeans, corn, dried mushrooms, boiled, eggshell, dried shrimp, tea leaves, and raw materials for herbal medicines. It is about.

[0002]

2. Description of the Related Art Conventionally, as a milling machine of this type, there is known a structure in which an object to be ground such as cereals is ground by a grinding unit comprising a fixed grinding machine and a rotating grinding machine.

[0003]

However, in the above-mentioned conventional structure, it is very troublesome to clean the crushing gap between the fixed crushing machine and the rotary crushing machine and the vicinity thereof. Has been reduced.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and among the present invention, the invention according to claim 1 includes a hopper portion into which a material to be pulverized is introduced. A crushing unit composed of a fixed crusher and a rotary crusher capable of crushing the material to be crushed into the hopper unit, a driving unit for rotating the rotary crusher, and crushing by the crushing unit. A discharge unit for discharging the crushed material, and a detachable mechanism for attaching and detaching the rotary crusher to and from the main shaft rotated by the drive unit by mounting or lifting the rotary crusher. The attachment / detachment mechanism is provided with 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 locking the main shaft and the rotary crusher. A flour mill characterized by comprising a locking mechanism comprising a locking pin and a locking portion.

In the invention according to a second aspect of the present invention, as the attachment / detachment mechanism, a transmission pin is formed so as to protrude from the main shaft, and a transmission fitting portion through which the transmission pin can be inserted into and removed from the rotary grinding machine. And a lock rod having an insertion hole formed in the main shaft and having a lower end protruding from the upper end of the rotary grinder with the upper end protruding, and being vertically movable. A spring member which can be elastically deformed downward so as to be able to be reduced and deformed when the upper end of the lock rod is lifted up, and which has a fitting hole which can be externally fitted to the main shaft in the rotary grinding machine, and A locking portion is formed on the inner peripheral surface of the hole, and a locking hole is further formed on the main shaft from the inner peripheral surface of the insertion hole to the outer peripheral surface of the main shaft. A locking pin that can be inserted into the locking pin is inserted through the locking pin so as to be able to protrude and retract, and a pressure receiving portion is formed at an inner end of the locking pin and the locking pin is formed. A pressing portion capable of pressing the pressure receiving portion is formed at a lower end portion of the rod, and an outer end portion of the locking pin is pressed against the locking portion when the rotary crusher is lifted, so that the locking pin is immersed. The present invention is characterized in that it is configured by forming a return portion composed of a tapered surface.

[0006]

1 to 21 show an embodiment of the present invention, which is roughly divided into a hopper section 1, a crushing section 2, a driving section 3, a discharging section 4, and a machine section section 5. In this case, the machine base 5 is configured by attaching a leg frame 5b to a machine base plate 5a.

As shown in FIG. 2, the hopper section 1 has a funnel-shaped inlet cylinder 1b formed in an upper case body 1a of three case bodies 1a, and an upper inlet 1c of the inlet cylinder 1b. A lid member 1d that can be opened and closed is attached, and an insertion hole 1e is formed in the lid member 1d, through which a pushing member (not shown) for pushing the object W to be crushed downward can be inserted.

The crushing section 2 is composed of a fixed crushing plate 6 and a rotary crushing plate 7, and the surface of the fixed crushing plate 6 is provided with crushed uneven strips 6.
a is formed, and the surface of the rotary crusher 7 has crushed irregularities 7a.
Are formed, and the rotary crusher 7 is configured to be rotated by the drive unit 3.

In this case, as shown in FIGS. 2 and 6, the machine base plate 5a
The middle base plate 5c is arranged on the separation shaft 5d on the
The bearing cylinder member 8 is installed vertically, and the slide cylinder 8 is mounted on the bearing cylinder member 8.
a into the sliding cylinder 8a so that the bearing 8
b, a main shaft 9 is vertically installed rotatably, a rotary crusher 7 is removably mounted on the main shaft 9 via a mounting / dismounting mechanism 10, and a fixed crusher is mounted on the bearing tube member 8 above the rotary crusher 7. 6 is formed by forming a crushing gap H between the opposing surfaces. In this case, as shown in FIGS.
And an upper opening groove 8d reaching the annular fitting groove 8c.
The upper opening groove 8 is formed on the outer periphery of the fixed crusher 6.
d, a fitting flange 6b capable of being fitted into the annular fitting groove 8c so as to be fitted from above, a stopper 8e abutting on the fitting flange 6a is formed on the bearing cylinder member 8, and the fixed crusher 6 is mounted on the bearing cylinder. The member 8 is provided so as to be detachable by a swivel-fitting action of the annular fitting groove 8c and the fitting flange 6a.

The attachment / detachment mechanism 10 is shown in FIGS.
And 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 a locking pin 14 for locking the main shaft 9 and the rotary crusher 7.
And a locking mechanism 16 including a locking portion 15,
In this case, two transmission pins 11 protrude from the main shaft 9 and a hole-shaped or groove-shaped transmission fitting portion 12 into which the transmission pin 11 can be inserted and removed from the rotary crusher 7. In addition, an insertion hole 17 is formed in the upper part of the main shaft 9 and a lock rod 18 whose lower end is insertable into the insertion hole 17 at the upper end of the rotary grinder 7 so as to be slidable up and down. A conical body 19 is attached to the upper end of the lock rod 18 so that the lock rod 18 can be elastically pressed downward so that the rotary crusher 7 can be reduced or deformed by its own weight or an external force when the upper end of the lock rod 18 is lifted. A possible spring member 20 is provided, and a fitting hole 21 that can be fitted externally to the main shaft 9 is formed on the rotary crusher 7 and a locking portion 15 is formed on the inner peripheral surface of the fitting hole 21. Further, three locking holes 23 extending from the inner peripheral surface of the insertion hole 17 to the outer peripheral surface of the main shaft 9 are formed in the main shaft 9. Outer end is inserted through the locking pin 14 can be fitted freely project and retract back and forth to the locking portion 15 to Rutotomoni locking hole 23, hemispherical receiving portion inner end of the locking pin 14 1
4a and a tapered pressing portion 18a capable of pressing the pressure receiving portion 14a is formed at the lower end of the lock rod 18, and the locking pin 1 is formed on the locking portion 15 when the rotary crusher 7 is lifted.
4 is formed with a tapered surface-like returning portion 15a for pressing the outer end portion of the locking pin 14 so as to be immersed therein. Further, a friction cylinder 25 is slidably provided at the bottom of the insertion hole 17, and the friction cylinder 25 is provided. A spring 25a that is weaker than the spring member 20 to be pushed up is provided,
The pressure receiving portion 14a of the locking pin 14 is formed by the upper surface of the friction cylinder 25.
To prevent the floating movement of the locking pin 14.

When the rotary crusher 7 is to be removed in the use state shown in FIG. 13, when the conical body 19 provided at the upper end of the lock rod 18 is lifted, the transmission pin 11 is engaged with the transmission fitting. Only the lock rod 18 is retracted from the portion 12 and slid upwardly by reducing and deforming the spring member 20 by its own weight of the rotary crusher 7, whereby the locking pin 14 can be retracted inward and retracted. At the same time, the outer end of the locking pin 14 is pressed against the outer end of the locking pin 14 by the tapered return portion 15a of the locking portion 15, and the locking pin 14 enters and retracts in the locking hole 23. When the rotary crusher 7 can be detached from the main shaft 9 as described above, and when the rotary crusher 7 is mounted on the main shaft 9, the upper end Cone 19 provided in the part
When the fitting hole 21 is externally fitted to the outer peripheral surface of the upper end portion of the main shaft 9, the transmission pin 11 is inserted into the transmission fitting portion 12 and the pressure receiving portion 14 a at the inner end of the locking pin 14 is The pressing portion 18a at the lower end of the lock rod 18 protrudes and is pressed,
The outer end of the locking pin 14 can be fitted into the locking portion 15, and the tip of the locking pin 14 is fitted into the locking portion 15.

Numeral 26 denotes a grinding gap adjusting mechanism, which is provided with the rotary grinding machine 7 so as to be movable toward and away from the fixed grinding machine 6. The main shaft 9 for rotating the rotary crusher 7 is moved by the cam shaft portion 27 and the inclined cam portion 28 and tightened. 6, 8 and 9, a groove-like inclined cam portion 28 extending obliquely in the vertical direction on both opposing surfaces of the bearing tube member 8 as shown in FIGS.・ 2
8, a female screw portion 30 is formed on both opposing surfaces of the slide cylinder 8a, and a cam shaft portion 27 which can be slidably fitted to one of the inclined cam portions 28 is formed at a middle portion of the operation shaft 29, Operation axis 2
9 is used as a screw portion, and a female member 3 is interposed between the outer peripheral surface of the bearing sleeve member 8 and the operation shaft 29 with a piece member 31 interposed therebetween.
0, and a guide shaft portion 32 that can be slidably fitted to the other sloped cam portion 28 is screwed and fixed to the other female screw portion 30, and the sloped cam portion 28 is fixed to the middle case body 1a. Escape hole 3 having the same shape and allowing the operation shaft 29 to protrude outward.
3 is formed. It should be noted that a structure in which the position of the operation shaft 29 is fixed by a spring pressure brake mechanism may be used instead of the screw fixing structure of the operation shaft 29.

When the operating shaft 29 is moved along the inclined cam portion 28 after the operating shaft 29 is relaxed and rotated, the main shaft 9 and the slide cylinder 8a are operated by the inclined cam action of the cam shaft portion 27 and the inclined cam portion 28. The crushing machine 7 also moves up and down together with this, whereby the crushing gap H between the fixed crushing machine 6 and the rotating crushing machine 7 is changed and adjusted. , The bearing cylinder member 8 is composed of the bridge member 31 and the slide cylinder 8.
and the rotary crusher 7 is fixed in position.

The fixed crushing plate 6 and the rotary crushing plate 7 are provided at the center of the fixed crushing plate 6 as shown in FIGS.
4 is fixedly erected, and the introduction receiving cylinder 34 is connected to the introduction cylinder 1b to form an introduction path 35, and a step-like coarse grinding blade 34a is formed on the inner peripheral surface of the introduction receiving cylinder 34 so as to protrude by four rows. On the surface of the fixed crushing machine 6, crushing irregularities 6a are formed, and on the inner side of the fixed crushing machine 6, a plurality of introduction grooves 6b capable of introducing the crushed object W into the crushing gap H are formed. In addition, in the rotary crusher 7, an introduction receiving cylinder 36 is integrally erected at the center portion, and a step-like coarse grinding blade 36 a is formed on the outer peripheral surface of the introduction receiving cylinder 36 so as to project by four rows. The surface of the rotary crusher 7 has crushed irregularities 7a.
In other words, in this case, the crushing irregularities formed by continuously forming a plurality of concave grooves M and convex portions F extending from the inside to the outside on the board surfaces of the fixed crushing board 6 and the rotary crushing board 7. 6a ・ 7a
And the groove surfaces of the concave grooves M of the crushed concave and convex strips 6a and 7a are formed into arcuate groove surfaces as shown in FIGS. That is, formed in the fixed to潰盤D and rotated to潰盤substantially triangular V-shaped groove where the groove surfaces of the formed grooves C to B has a corner bottom C ₁ of FIG. 22 shows a conventional proposed structure It is different from what you have.

In this case, as shown in FIG.
Of the crushing irregularities 7a are divided into eight crushing areas A by eight muscle base lines L inclined at a predetermined angle rearward in the rotation direction with respect to the radial line K of the rotary crushing machine 7, and each crushing area A A is formed with a groove pattern based on a plurality of base lines G parallel to the muscle base line L in the direction of rotation and sequentially spaced apart by a predetermined arrangement pitch in A. Are formed with the same groove pattern as the crushing irregularities 7a of the rotary crusher 7, so that the crushing irregularities 6a of the fixed crusher 6 and the crushing irregularities 7a of the rotary crusher 7 As shown in FIG. 20, an arc-shaped groove surface of the concave groove M is formed by an arc R having a radius of 2 mm to 3 mm, and the stripes are formed as shown in FIG. The base line L is tilted rearward in the rotation direction with respect to the radial line K of the rotary grinding machine 7 at an inclination angle θ = 8 degrees to 2 degrees. Line that degree tilt, in this case, theta = 15
And the arrangement pitch P between the plurality of base lines G is 1.5 mm to 2.5 mm.

As shown in FIGS. 2 and 6, the drive section 3 has a rotation motor 37 mounted on the lower surface of the machine base plate 5a, and a drive gear 37a mounted on a main shaft of the motor base plate 5a. An intermediate gear 38 is attached to the base plate 5b by an intermediate shaft 38a, and a driven gear 39 is attached to the lower end of the main shaft 9;
The main shaft 9 is rotated by the rotation motor 37 via the respective gears 37a, 38 and 39, and the driven gear 39 slides on the tooth surface of the intermediate gear 38 together with the main shaft 9 when adjusting the grinding gap H. It is configured to be.

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. A brush body 4b protrudes from the crushing machine 7, a discharge recess 4c is formed in the middle case body 1a, and a take-out container 40 is detachably provided in the discharge recess 4c.

Reference numeral 41 denotes a shutter member, which is provided so as to be able to open and close an introduction path 35 between the hopper section 1 and the crushing section 2.
And an interlocking mechanism 42 for interlocking the opening and closing operation of the shutter member 4 with the interlocking mechanism 42.
1 is a displacement absorbing mechanism 43 capable of absorbing a displacement difference from the opening / closing operation of FIG.
Is arranged.

The interlocking mechanism 42 and the displacement absorbing mechanism 4
3, a frictional force is applied between the lid member 1d side and the operation link 44 side for moving the shutter member 41 forward and backward to enable mutual interlocking, and to allow sliding by a force greater than the frictional force. Friction member 4 that can be released from interlocking
In this case, as shown in FIGS. 14 to 19, a raised bearing portion 46 is integrally formed on the upper surface of the case body 1a, and the two raised bearing portions 46 can be interposed on the lid member 1d. The bearing portions 47 are integrally formed, and a fulcrum shaft 48 is provided between the bearing portions 47. The raised bearing portion 46 of the case body 1a is provided.
The shaft cylinders 49, 49 are loosely fitted on both sides of the shaft, and the raised bearing 46 is mounted on the fulcrum shaft 48 via the shaft cylinders 49, 49.
8, the base tube portion 44 a of the operation link 44 is fitted into the middle portion, and each side surface of the base tube portion 44 a of the operation link 44 and the shaft tube 4.
A so-called wave washer having spring elasticity is formed by interposing a friction member 45 between the opposed surfaces 9 and 49 and forming the friction member 45 with a plurality of irregularities repeated at a plurality of radial positions on the circumferential seating surface of the flat washer. A wavy washer is used. Of course, as the friction member 45, a friction member 45 that performs another slip clutch action such as a slip ring or a spring washer having spring elasticity against an axial compressive load can be used. The shaft cylinders 49 and the bearings 47.4 are formed by the member 45.
7 and the base cylindrical portion 44a of the operating link 44
A frictional force is constantly applied between the side surfaces of the shaft cylinder 49 and the opposing surfaces Q of the shaft cylinders 49, 49.
0, the above-mentioned shutter member 41 is rotatably supported on the bearing hanging part 50 by the revolving shaft 51, and an opening / closing part 41 a capable of opening and closing the introduction path 35 is formed at the tip of the shutter member 41. A connecting rod 52 is suspended between the base 41b and the operating link 44.

In the closed state shown in FIGS. 14 and 19, the lid member 1d is connected to the fulcrum shaft 4 as shown by the imaginary line in FIG.
When the cover member 1d is opened at the beginning of the opening movement of the lid member 1d, the shaft cylinders 49.4 and 49.4 due to the resilient frictional action of the friction member 45 are provided.
9 between the opposing surfaces of the bearing 9 and the bearing portions 47 and the operating link 4
The operation link 44 rotates in the direction of the arrow due to the frictional force generated between each side surface of the base cylinder portion 44a of FIG. 4 and the opposing surface Q of the shaft cylinder 49, and is interlocked with the rotation of the operation link 44. 1
7, from the open state of FIG. 18 to the closed state of FIG. 19, the shutter member 41 closes and pivots around the pivot 51, and
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 when the lid member 1d is further operated to the open angle, the shaft cylinders 49 and 49 and the bearing portion 47 by the resilient frictional action of the friction member 45. .47 between the opposing surfaces Q and the side surfaces of the base tube portion 44a of the operating link 44 and the shaft tubes 49.4
9, a force higher than the frictional force generated between the opposing surfaces Q is applied,
Therefore, the sliding of the lid member 1d is allowed between the opposing surfaces Q, and the interlocking of the lid member 1d and the operation link 44 can be released, and the lid member 1d is opened by about 100 degrees and stands up. Conversely, when the lid member 1d is operated at the closing angle, at the beginning of the closing movement of the lid member 1d, the gap Q between the opposing surfaces of the shaft cylinders 49 and the bearing portions 47 and 47 and the operating link due to the elastic frictional action of the friction member 45. Each of the side surfaces of the base tube portion 44a of 44 and the shaft tube 49
The operation link 44 is rotated in reverse by the frictional force generated between the opposing surfaces Q of the shutter 49, and the shutter is changed from the closed state in FIG. 19 to the open state in FIGS. The member 41 pivots open around the pivot 51, and the operating link 44 contacts the stopper surface 35b formed on the case body 1a to complete the opening operation of the shutter member 41, and further closes the lid member 1d by the closing angle. When operated, the gap Q between the opposing surfaces of the shaft cylinders 49, 49 and the bearings 47, 47 due to the resilient frictional action of the friction member 45 and the opposing surfaces of each side surface of the base cylinder 44a of the operating link 44 and the shaft cylinders 49, 49. A force equal to or greater than the frictional force generated between the gaps Q is applied, allowing the lid member 1d to slide between the opposing surfaces Q, and releasing the interlocking of the lid member 1d and the operation link 44, whereby the lid member can be released. 1d
The difference in displacement between the opening and closing operation of the shutter member 41 and the opening and closing operation of the shutter member 41 can be absorbed.

Since this embodiment has the above configuration,
Grains W such as rice, wheat, soybeans, corn and the like, dried mushrooms, boiled dried eggshells, dried shrimp, tea leaves, raw materials of herbal medicines, etc., are put into the hopper 1 and the driving unit 3 rotates the grinder 7. 4 can be considered to be rotated counterclockwise in FIG. 4, in other words, the fixed crusher 6 can be considered to be relatively rotated counterclockwise in FIG. While being crushed by the crushing gap H of the crushing portion 2 composed of the crushing machine 7, the crushed material W is sent outward with centrifugal force while being crushed, and the crushed material W is discharged from the discharge portion 4. At this time, an attachment / detachment mechanism 10 for attaching and detaching the rotary crusher 7 to / from the main shaft 9 rotated by the drive unit 3 by placing or lifting the rotary crusher 7 is provided. A transmission pin 11 for transmitting rotation between the main shaft 9 and the rotary crusher 7 and a transmission fitting portion A rotation transmission mechanism 13 consisting of two,
Since it is constituted by a locking mechanism 16 including a locking pin 14 and a locking portion 15 for locking the main shaft 9 and the rotary crusher 7,
The rotating crusher 7 can be easily removed 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 and the vicinity thereof can be cleaned. It can be easily performed, 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 controlled by the transmission pin 11 and the transmission fitting portion 1.
2 and the locking between the main shaft 9 and the rotary crusher 7 is performed by a locking mechanism 16 including a locking pin 14 and a locking portion 15. And the connection strength between the main shaft 9 and the rotary crusher 7 can be increased, and the operability can be improved accordingly.

In this case, as the attachment / detachment mechanism 10, a transmission pin 11 is formed so as to protrude from the main shaft 9 and a transmission fitting portion 12 through which the transmission pin 11 can be inserted and detached is formed on the rotary crusher 7, and An insertion hole 17 is formed in the upper part of the main shaft 9, and a lock rod 18 whose lower end is inserted into the insertion hole 17 is provided on the rotary crusher 7 so that the upper end protrudes and is slidable up and down. 18 so that the lock rod 1 can be pressed down.
A spring member 20 that can be reduced and deformed by the weight of the rotary crusher 7 or an external force when the upper end of the rotary crusher 8 is lifted is provided, and a fitting hole 21 that can be externally fitted to the main shaft 9 is provided in the rotary crusher 7. The main body 9 is formed with a locking portion 15 on the inner peripheral surface of the fitting hole 21, and further formed with the main shaft 9 is 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. 23, a locking pin 14 whose outer end can be inserted into the locking portion 15 is inserted through the locking pin 14 so as to be able to protrude and retract, and the pressure receiving portion 14 is inserted into the inner end of the locking pin 14.
a and the pressure receiving portion 1 is provided at the lower end of the lock rod 18.
4a is formed with a tapered pressing portion 18a capable of pressing the locking pin 1a.
4 is formed by forming a return portion 15a formed of a tapered surface for pressing the outer end portion of the locking pin 14 so as to enter the locking pin 14, so that the structure of the attaching / detaching mechanism 10 can be simplified and the locking rod can be formed. The locking pin 14 is made to protrude into the locking portion 15 by the projection 18, and the pressure receiving portion 14 a at the inner end of the locking pin 14 is pressed by the pressing portion 18 a at the lower end of the lock rod 18, whereby the main shaft 9 and the locking shaft 18 are pressed. A return portion 15a that can reliably pull out and lock the rotary crusher 7 and press the outer end of the locking pin 14 to immerse the locking pin 14.
Is formed on a conical tapered surface, so that the rotary crusher 7 can be easily mounted on the main shaft 9, which further improves the detachability of the main shaft 9 and the rotary crusher 7. can do.

The present invention is not limited to the above-described embodiment, and the structures, forms, materials, etc. of the hopper 1, the crushing unit 2, the driving unit 3, the discharging unit 4, and the attaching / detaching mechanism 10 are appropriately changed. It is designed to be.

[0024]

As described above, according to the first aspect of the present invention, the rotary grinding machine is placed or lifted with respect to the main shaft rotated by the drive unit. And a rotation transmission mechanism comprising a transmission pin and a transmission fitting part for transmitting rotation between the main shaft and the rotary crusher, and a main body and a rotary crusher. Since it is composed of a locking mechanism consisting of a locking pin and a locking part for locking, the rotating crusher can be easily removed from the main shaft by lifting operation of the rotary crusher, and the fixed crusher and the rotary crusher can be removed. The grinding gap between the crusher and the vicinity thereof can be easily cleaned, and the rotating crusher can be easily attached to the main shaft by the mounting operation of the rotary crusher. A rotation transmission mechanism consisting of a transmission pin and a transmission fitting Since the engagement of the 潰盤 be rotated with the main shaft is made by locking mechanism comprising a locking pin and the locking portion,
The rotating grinder can be surely rotated, and the connection strength between the main shaft and the rotating grinder can be increased, so that the operability can be improved accordingly.

According to the second aspect of the present invention, as the attachment / detachment mechanism, a transmission pin is formed so as to protrude from the main shaft, and a transmission fitting portion through which the transmission pin can be inserted and detached is formed on the rotary grinding machine. In addition, an insertion hole is formed in the upper part of the main shaft, and a lock rod whose lower end can be inserted into the insertion hole is disposed on the rotary grinder so that the upper end protrudes and is slidable up and down. A resilient member which can be resiliently pressurized and which can be reduced and deformed by its own weight or an external force when the upper end of the lock rod is lifted, and which can be externally fitted to the main shaft on the rotary grinder. And a locking portion is formed on the inner peripheral surface of the fitting hole. Further, a locking hole is formed on the main shaft from the inner peripheral surface of the insertion hole to the outer peripheral surface of the main shaft, and an outer end portion is formed on the locking hole. Is inserted through a lock pin that can be inserted into the lock section so that it can be inserted into and retracted from the lock section. And at the lower end of the lock rod, a tapered pressing portion a capable of pressing the pressure receiving portion is formed, and the outer end of the locking pin is pressed against the locking portion when the rotary crusher is lifted. Since the return pin is formed with a tapered surface that allows the stop pin to enter, the structure of the attachment / detachment mechanism can be simplified. By pressing the pressure receiving portion at the inner end of the locking pin with the pressing portion at the lower end of the lock rod, the main shaft and the rotary crusher can be reliably pulled out and locked, and locked. The revolving part that presses the outer end of the pin to immerse the locking pin is formed on the tapered surface, so that the rotary crusher can be easily mounted on the main shaft, and the rotation with the main shaft The operability of attaching and detaching to and from the crusher can be further improved.

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 the embodiment of the present invention.

FIG. 3 is a partially exploded perspective view of the embodiment of the present invention.

FIG. 4 is a front view of the rotary crusher according to the embodiment of the present invention.

FIG. 5 is a front view of the fixed crusher according to the embodiment of the present invention.

FIG. 6 is a partial longitudinal sectional view of the embodiment of the present invention.

FIG. 7 is a partial plan sectional view of the embodiment of the present invention.

FIG. 8 is a partial plan sectional view of the embodiment of the present invention.

FIG. 9 is a partial front view of the embodiment of the present invention.

FIG. 10 is a partial plan sectional view of the embodiment of the present invention.

FIG. 11 is a partial plan sectional view of the embodiment of the present invention.

FIG. 12 is a partially exploded sectional view of the embodiment of the present invention.

FIG. 13 is a partial cross-sectional view of the embodiment of the present invention.

FIG. 14 is a partial sectional view of the embodiment of the present invention.

FIG. 15 is a plan view of the embodiment of the present invention.

FIG. 16 is a partial plan sectional view of the embodiment of the present invention.

FIG. 17 is a partial perspective view of the embodiment of the present invention.

FIG. 18 is a partial plan sectional view of the embodiment of the present invention.

FIG. 19 is a partial plan sectional view of the embodiment of the present invention.

FIG. 20 is a partial sectional view of a rotary crusher according to an embodiment of the present invention.

FIG. 21 is an explanatory sectional view of a crush gap portion according to the embodiment of the present invention.

FIG. 22 is an explanatory sectional view of a crushing gap portion of the preceding proposed structure.

[Explanation of symbols]

 W Crushed object H Crush gap 1 Hopper section 2 Crush section 3 Drive section 4 Discharge section 6 Fixed crusher 7 Rotating crusher 9 Main shaft 10 Detachment mechanism 11 Transmission pin 12 Transmission fitting section 17 Insertion hole 18 Lock rod 18a Pressing portion 20 Spring member 21 Fitting hole 15 Locking portion 15a Returning portion 23 Locking hole 14 Locking pin 14a Pressure receiving portion

Claims (2)

[Claims] 1. A hopper into which an object to be crushed is charged, a crushing unit comprising a fixed crusher and a rotary crusher capable of crushing the object to be crushed into the hopper; A driving unit for rotating the plate, and a discharge unit for discharging the crushed material crushed by the crushing unit, wherein the rotary crushing plate is rotated with respect to a main shaft rotated by the driving unit. An attachment / detachment mechanism for attaching / detaching by placing or lifting the crushing plate is provided, and the attachment / detachment mechanism is provided with a rotation transmitting mechanism including a transmission pin and a transmission fitting portion for transmitting rotation between the main shaft and the rotary crusher. And a locking mechanism comprising a locking pin and a locking portion for locking the main shaft and the rotary crusher. 2. As the attachment / detachment mechanism, a transmission pin is formed so as to protrude from the main shaft, and a transmission fitting portion through which the transmission pin can be inserted / removed is formed on the rotary grinder, and an insertion hole is formed in the main shaft. A lock rod having a lower end protruding from the upper end of the rotary crusher and having the lower end protruding from the upper end is disposed on the rotary crusher. Arrange a spring member that can be reduced and deformed when lifting the part,
The rotary crusher has a fitting hole that can be externally fitted to the main shaft, and a locking portion is formed on the inner peripheral surface of the fitting hole. A locking hole extending to the outer peripheral surface is formed, and a locking pin whose outer end can be fitted into the locking portion is inserted through the locking hole so as to be able to protrude and retract, and the inner end of the locking pin is formed. And a pressing portion capable of pressing the pressure receiving portion is formed at a lower end portion of the lock rod, and an outer end portion of the locking pin is attached to the locking portion when the rotary grinding machine is lifted. 2. The flour mill according to claim 1, wherein a return portion formed of a tapered surface which is pressed to immerse the locking pin is formed.