JPH0454828Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application This invention uses a hammer pin that protrudes radially through a hammer pin into a case that has an input port at the top and a discharge port at the bottom. Improvement of a crusher commonly known as a hammer mill that accommodates a rotary body and crushes the raw material input from above with the striking element, passes through a screen arranged so as to surround the outer periphery of the rotary body, and discharges it downward. Regarding.

B. Prior art The above-mentioned crusher conventionally has side plates 9,
A plurality of disks 18, 1 are arranged at predetermined intervals between each disk.
8... are arranged in parallel, and their disks 18, 18
A rotating body was used in which striking elements 12, 12, . . . were attached to a hammer pin 13, which was passed through the hammer pin 13, in a free state against rotation.

C. Problem that the invention aims to solve A rotating body with many disks arranged in parallel is heavy.
Therefore, a large starting torque is required. In addition, when replacing a worn hitting piece with a new hitting piece, or when replacing it with a different hitting piece depending on the raw material, in addition to being removed, the hammer pin 13 of the replacing hitting piece must be inserted into each disk 18 in turn. However, since the spacer 14 and the striker 12 had to be inserted alternately and also connected to the rotating shaft using a connecting plate, work efficiency was extremely poor.

D. Means for Solving the Problems The present invention aims to reduce the weight of the rotating body and to simplify the work of replacing the hammer pin. The hammer pin is attached to the inner surfaces of both side plates and connected to a rotating shaft at an appropriate portion of the intermediate portion, so that the hammer pin can be attached to and detached from the rotating body while the hammer pin is attached.

E. Function The rotating body has no discs except for the left and right side plates, making it lighter in weight, so it can be started with a small-output motor. Furthermore, by uncoupling the hammer pin from the rotating shaft at the intermediate portion and releasing the grips at both ends, the entire hammer pin can be removed in the outer circumferential direction without having to remove the striker from the hammer pin.

F. Example The drawing shows an example of the crusher according to the present invention, in which 1 has a hopper 2 on the top and a discharge port 3 on the bottom.
The main body case 1 has a rotating shaft 6 supported by bearings 4, 4 on both sides near the case and with a rotating body 5 integrally provided in the center. accommodated within and penetrated;
A motor 7 is directly connected to a rotating shaft 6 that protrudes outside the case. Further, a screen 8 is arranged in the case so as to surround the rotating body 5. The rotating body 5 is perpendicular to the rotating shaft 6,
Side plates 9, 9 consisting of a pair of metal disks are fixed at a predetermined interval, and near the periphery of the inner surfaces of the side plates 9, 9, horseshoe-shaped holders 10, 10... are mounted with the opening side facing the center. They are placed at equal intervals in four locations. Further, between the side plates 9, 9, connecting plates 11, 11 of small diameter are fixed to the rotating shaft 6 in parallel with the side plates 9, 9, and the connecting plates 11, 11 have bolt insertion holes 11a at four locations, respectively. , 11a, . . . are bored, and a locking block 11b is provided. 12, 12... are striking elements, and these striking elements 12, 12... are inserted into the pin insertion holes 12a, 12.
A hammer pin 13 is inserted into a... in a free state against rotation, and the adjacent striking elements 12, 1
Spacers 14, 14, . . . are interposed between the striking elements 2 and 2 to maintain a predetermined distance between the striking elements. And specific spacers 14a, 14a...
A connecting arm 15 is provided protrudingly provided on the connecting arm 15, and bolt insertion grooves 15a, 15a, . . .
A locking block 15b is provided which mates with b. The hammer pin 13 with the strikers 12, 13... attached in this way has both ends connected to the holder 1.
0, and the locking block 11b of the connecting plate 11 and the locking block 15b of the connecting arm 15 are combined with each other and connected with bolts 16 and nuts 17 to be mounted parallel to the rotating shaft 6.

To remove the striker 12, remove the bolt 16 and nut 17 and remove the locking block 11 of the connecting plate 11.
b and the locking block 15b of the connecting arm 15, both ends of the hammer pin 13 can be removed from the holder 10, so the hammer pin 13 can be moved in the radial direction with the striker 12 still attached. All you have to do is take it out and remove the hammer pin 13 from the striking element 12. Also, to attach the striking element 12, perform the reverse operation.

In the crusher formed in this way, when the rotating body 5 is rotated by the motor 7, the striking elements 12 project in the radial direction due to the centrifugal force, and the raw material introduced from above is crushed by the striking elements 12, and the screen 8
When it passes through and is discharged downward, it performs a specified crushing function. The rotating body itself is light in weight since it does not have a disc, and the hammer pin can be easily replaced because it can be removed along with the hammer pin in the radial direction. The small size can be started by a motor, and the striking element can be easily replaced by opening one side of the case.

Although the above embodiment has been described as having four hammer pins, the number of hammer pins and striking elements may be increased or decreased. Further, the means for fixing the hammer pin may be such that it is held between the left and right side plates of the rotating body by holding both ends of the hammer pin to which the striking element is attached to the respective side plates, and by connecting an appropriate part in the middle with the rotating shaft. Instead of using a horseshoe-shaped holder as the holding mechanism, or using a disc-shaped connecting plate and connecting arm as the connecting mechanism, it can be held with a bolt stopper, or it can be connected directly to the rotating shaft with a connecting bar. It is not limited to the examples.

Effects of the invention As described above, according to the invention, if the connection between the hammer pin and the rotating shaft is released, the striker can be removed from between the side plates while remaining attached to the hammer pin, and when the hammer pin is replaced, it can be set directly between the side plates. All it takes is a simple task. As a result, the troublesome work of replacing the striking element is alleviated, and work efficiency can be improved by frequently replacing the striking element, not only when the striking element is worn out, but also when it is better to replace it with a different striking element depending on the type of raw material. Suitable for increasing Furthermore, since the disk in the conventional rotating body has been eliminated, the rotating body is lighter and can be started with a small output motor.
It also leads to energy savings.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of the pulverizer according to the present invention, Fig. 2 is an explanatory view showing the internal structure of the pulverizer, and Fig. 3 is an exploded perspective view of a rotating body in the pulverizer. , FIG. 4 is an assembled perspective view of the rotating body, FIG. 5 is an explanatory diagram showing a connection mechanism between the hammer pin and the rotating shaft, and FIG. 6 is an explanatory diagram of the rotating body in a conventional crusher. 1...Body case, 2...Hopper, 3...Discharge port, 4...Bearing, 5...Rotating body, 6...Rotating shaft, 7...Motor, 8...Screen, 9...
Side plate, 10... Holding body, 11... Connection plate, 11a
... Bolt insertion hole, 11b ... Locking block, 1
2... Striker, 12a... Pin insertion hole, 13...
Hammer pin, 14, 14a...Spacer, 1
5... Connecting arm, 15a... Bolt insertion groove, 15b
... Locking block, 16 ... Bolt, 17 ... Nut, 18 ... Disc.

Claims (1)

[Scope of utility model registration request] A striker that protrudes in the radial direction due to centrifugal force is attached to a rotating body via a hammer pin, and the rotating body is
The material is housed in a case with an input port on the top and a discharge port on the bottom, and the raw material inputted from above is crushed by the striker, passed through a screen arranged to surround the outer periphery of the rotating body, and discharged downward. In the crusher, both ends of the hammer pin are held on the inner surfaces of the left and right side plates of the rotating body, and appropriate intermediate portions are connected to the rotating shaft, and the hammer pin is held against the rotating body with the striker attached. A crusher characterized by being detachable.