JPH0451875Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The present invention relates to a crusher for crushing waste products such as garbage, glass, metal materials, etc., and particularly relates to a hammer used in the crusher. It is.

(2) Conventional technology In a crusher in which a hammer is attached to a rotating body and the hammer is used to crush waste products, the edge of the hammer is easily worn out due to collisions with the waste products, reducing the crushing effect. As a result, the hammer often needs to be replaced. For this, for example,
As shown in Special Publication No. 60-34417,
A crusher has been proposed in which a hammer is formed separately into a hammer arm and a hammer body, and the two are removably connected by a pin, so that only the worn hammer body can be easily replaced.

3 to 8 show the above-mentioned conventional crusher. In FIG. 3, a crushing container 01 with a funnel-shaped main body 02 has an input port 03 on the top surface of one side.
However, a discharge port 04 is opened at the lower part of the other side, and a splash-out port 05 is opened at the upper part of the other side, and an opening/closing door 06 is suspended from the splash-out port 05 so as to be openable and closable.

A drive shaft 07 has a bearing 0 in the center of the crushing container 01.
The drive shaft 07 is rotatably supported in the vertical direction via the crushing container 01.
9 via a coupling ring 010.

The drive shaft 07 includes one large-diameter lowermost rotating body 0.
12 and a plurality of rotating bodies 011 with smaller diameters.
are polymerized and key-fitted, and these rotating bodies 011,
012 is rotated together with the drive shaft 07. The lowermost rotating body 012 also serves as a part of the bottom of the crushing chamber A formed in the crushing container 01.

At the periphery of the plurality of rotating bodies 011, 012,
A plurality of support shafts 013 are longitudinally supported at equal intervals in the circumferential direction, and a hammer H is rotatably connected to each of the support shafts 013.

In FIG. 3, when the drive shaft 07 is rotated by the drive of the prime mover 09, a plurality of rotating bodies 011, 0
12 also rotates, and the plurality of hammers H protrude in the radial direction due to centrifugal force, and the rotating bodies 011, 012
The waste products such as garbage, glass, metal materials, etc. inputted from the input port 03 collide with the plurality of hammers H in sequence and are crushed, and then sent to the discharge port 04.
is guided and discharged to the outside. On the other hand, coarse and difficult-to-crush items such as tires and motors are thrown away by the hammer H and discharged to the outside through the splash opening 05.

As is obvious from FIG.
A hammer body 016 having a planar sector shape in which a horizontal hole 015 into which the hammer 4 is inserted, a central pin hole 017 drilled in the hammer arm 014, and the hammer body 01
It consists of a hammer pin 018 that is inserted into upper and lower pin holes 017 ₂ and 017 ₃ drilled in 6 and connects both. The above-mentioned central pin hole 017 ₁ , upper pin hole 017 ₂ , and lower pin hole 017 ₃ have circular cross sections with the same diameter, and the lower pin hole 017 ₃ is closer to the tip of the hammer body 016 than the upper pin hole 017 _{2 .} On the other hand, the hammer pin 018 has only its central pin portion 018 ₁ formed into a circular cross section with the same diameter as the pin holes 017 ₁ , 017 ₂ , 017 ₃ , and the upper portion of the hammer pin 018 . The pin portion 018 ₂ and the lower pin portion 018 ₃ are formed into a substantially elliptical cross section by crescent-shaped upper and lower notches 019 and 020. As is clear from FIGS. 5 and 6, the width l of the upper notch 019 of the upper pin part ₀₁₈₂ is the width L of the lower notch 020 of the lower pin part 0183.
The upper and lower pin holes are set smaller than 0.
For the eccentricity e of 17 ₂ , 017 ₃ , the relationship L-l=e holds.

When assembling the hammer H configured as described above, as shown in FIG.
into the horizontal hole 015 of the arm body 016, aligning the upper pin hole 017 ₂ and the center pin hole 017 ₁ ,
Insert the hammer pin 018 from above. Then,
The lower notch 020 of the lower pin portion 018 ₃ comes into contact with the stepped portions of the central pin hole 017 ₁ and the lower pin hole 017 ₃ , and the hammer pin 018 is held in that position. When the crusher is driven in this state, the centrifugal force moves the hammer body 016 by a distance l toward its tip, and the 8th
As shown in the figure, the upper and lower notches 019 and 020 completely engage the inner surfaces of the upper and lower pin holes 017 ₂ and 017 ₃ , respectively. Therefore, the hammer pin 018 can hold the hammer body 016 in a stable state with respect to the hammer arm 014 without falling off even during operation of the crusher.

Conversely, when removing the hammer body 016,
Push the hammer body 016 back to its base end side and press the seventh
After returning to the state shown in the figure, the hammer pin 018 may be pulled out upward.

(3) Problems to be solved by the invention By the way, the edges of the hammer body on the front side in the direction of rotation are easily worn out due to collisions with waste products, whereas the edges on the rear side in the direction of rotation are almost never damaged. Therefore, if the hammer body is used upside down, its service life can be doubled and it is very economical. However, the hammer H described above has upper and lower pin holes 017 ₂ , 01 bored in the hammer body 016.
7 ₃ is eccentric by a distance e, it has been impossible to use the hammer body 016 upside down.

The present invention was developed in view of the above-mentioned circumstances, and aims to connect the hammer body to the hammer arm in a manner that allows it to be easily attached to and detached from the hammer arm, and also to enable the hammer body to be used by turning it upside down. .

B. Structure of the invention (1) Means for solving the problems In order to achieve the above object, the hammer in the crusher of the invention is a hammer connected to a rotary body that rotates around a drive shaft arranged in a vertical direction. an arm, a hammer body having a horizontal hole into which the hammer arm is removably inserted, and a pin hole having a circular cross section formed across the hammer arm and the hammer body;
In a hammer for a crusher, which has a hammer pin that has approximately the same diameter as the pin hole and is inserted into the hammer pin, the pin hole is located above and below the horizontal hole of the hammer body and is vertically symmetrical therein. The hammer arm includes an upper pin hole and a lower pin hole formed in the hammer arm, and a central pin hole formed in the hammer arm, and a protrusion is formed in the lower part of the hammer arm base end side of the central pin hole of the hammer arm, and the hammer pin an upper pin part that is inserted into the upper pin hole and has an upper notch on one side that corresponds to the upper pin hole; and an upper pin part that is inserted into the lower pin hole and corresponds to the lower pin hole and the protrusion below the upper notch; a lower pin portion having a lower notch;
It is characterized in that it has a central pin portion located between the upper and lower pin portions and inserted into the central pin hole.

(2) Function When installing the hammer in the crusher of the present invention having the above-mentioned configuration, the hammer arm is inserted into the horizontal hole of the hammer body and the positions of the upper and lower pin holes and the center pin hole are aligned. After that, insert the hammer pin from above with the upper and lower notches facing the protrusion side of the central pin hole. The inserted hammer pin is prevented from dropping downward as the stepped portion of the lower notch engages with the protrusion of the central pin hole. Subsequently, when the hammer body moves outward due to centrifugal force as the crusher operates, the upper and lower notches of the hammer pin engage with the inner surfaces of the upper and lower pin holes of the hammer body, and the stepped portions of the upper and lower notches engage This prevents the hammer pin from coming off in both the up and down directions.

Since the upper pin hole and the lower pin hole formed in the hammer body are formed symmetrically with respect to each other, the hammer body can be coupled to the hammer arm by the same operation as described above even if the hammer body is turned upside down.

(3) Embodiment An embodiment of the hammer in the crusher according to the present invention will be described below with reference to the drawings.

In this embodiment, members corresponding to those in the conventional example are given the same reference numerals except for the subscript 0.

As is clear from FIG. 1, the hammer H of this embodiment differs from the conventional example only in the pin hole 17 formed in the hammer body 16 and the hammer arm 14, and the hammer pin 18 inserted into the pin hole 17. It's on. That is, the upper pin hole 17 ₂ and the lower pin hole 17 ₃ that vertically penetrate the horizontal hole 15 formed in the hammer body 16 have the same diameter D and are located on the same center line CL. Ori,
Even if the hammer body 16 is turned upside down, the same positional relationship is maintained. Moreover, the central pin hole ₁₇₁ formed in the hammer arm 14 and having the same diameter D is
Only a predetermined height Q range from the lower surface of the hammer arm 14 is eccentric by a distance E towards the tip side of the hammer arm 14. Therefore, a crescent-shaped protrusion 21 is formed on one side of the lower end of the central pin hole 17 ₁ , and a recess 22 of the same shape is formed on the opposite side. This recess 22 is not functionally necessary, but is created by drilling when forming the protrusion 21.

The hammer pin 18 has a circular cross section with a diameter D and a height P.
-Q, and an upper pin portion 18 ₂ and a lower pin portion 18 ₃ located above and below the central pin portion 18 ₁ . These upper and lower pin parts 18 ₂ and 18 ₃ are connected to the projection 21
Crescent-shaped upper and lower notches 19, 2 in a complementary relationship with
0 on the side faces in the same direction, and its cross-sectional shape is approximately elliptical surrounded by two circular arcs with a diameter D.

Next, the operation of one embodiment of the hammer in the crusher according to the present invention having the above-mentioned configuration will be explained.

To assemble the hammer body 16, the hammer arm 14 is inserted into the horizontal hole 15 of the hammer body 16, and the upper and lower pin holes 17 ₂ and 17 ₃ are aligned with the center pin hole 17 ₁ . At this time, when looking inside the pin hole 17 from above, the crescent-shaped protrusion 21 of the central pin hole 17 ₁ is exposed on the base end side of the hammer arm 14 . Subsequently, when the hammer pin 18 is inserted from above with its upper and lower notches 19 and 20 facing the proximal end side of the hammer arm 14, the stepped portion of the lower notch 20 abuts the protrusion 21 of the central pin hole ₁₇₁ from above, The hammer pin 18 stops at that position. In this state, as shown in FIG. 2A, the upper and lower pin parts 18 ₂ , 1
A gap R corresponding to the upper and lower notches ₁₉ and 20 is formed between the upper and lower pin holes 17 ₂ and 17 ₃ .
However, as shown in FIG. 2B, when the hammer body 16 slides outward due to centrifugal force, the gap R disappears and instead the upper and lower notches 19 and 20
A new gap R' is formed on the opposite side. In this state, the central pin portion 18 ₁ is locked to the hammer body 16 and will not fall off in either the up or down direction.

To remove the hammer body 16, remove the hammer body 16.
After pushing the hammer pin 18 back to the position shown in Figure 1,
Just pull it upwards. And the hammer body 1
In order to position the unworn rear edge of the hammer body 6 to the front side, it is sufficient to simply invert the hammer body 16 and perform the same installation operation as described above.

C. Effects of the invention As described above, according to the hammer in the crusher of the invention, the pin holes are located above and below the horizontal hole of the hammer body and are formed with an upper pin hole and a lower pin hole that are vertically symmetrical. , a central pin hole formed in the hammer arm, and a protrusion formed at the lower part of the proximal end of the hammer arm of the central pin hole of the hammer arm;
The hammer pin includes an upper pin part that is inserted into the upper pin hole and has an upper notch on one side that corresponds to the upper pin hole, and an upper pin part that is inserted into the lower pin hole and has a lower pin hole and a protrusion below the upper notch. It consists of a lower pin part with a lower notch and a central pin part located between the upper and lower pin parts and inserted into the central pin hole, so that the hammer pin engages with the protrusion of the central pin hole when installing the hammer body. This not only prevents the hammer pin from falling downward, but also prevents the hammer pin from falling off in both the up and down directions by sliding the hammer body outward during operation of the crusher.

In addition, the upper and lower pin holes of the hammer body are formed symmetrically, so even if one edge of the hammer body is worn, the other unworn edge can be used by reversing the hammer body. It is very economical.

[Brief explanation of the drawing]

Figure 1 is a longitudinal side view showing the state of the hammer arm, hammer body, and hammer pin before assembly;
Figure A is a longitudinal side view showing the condition when the hammer main body is installed, Figure 2B is a vertical side view showing the condition during operation, Figure 3 is an overall view of the crusher, and Figure 4 is the conventional crusher. A perspective view of the hammer, FIGS. 5 and 6 are views showing the notch of the hammer pin, FIG. 7 is a vertical cross-sectional view showing the state when the hammer body is attached, and FIG.
It is a longitudinal cross-sectional view showing the state during operation. 07... Drive shaft, 011,012... Rotating body,
14...Hammer arm, 15...Horizontal hole, 16...
Hammer body, 17... Pin hole, 17 ₁ ... Center pin hole, 17 ₂ ... Upper pin hole, 17 ₃ ... Lower pin hole, 18... Hammer pin, 18 ₁ ... Center pin part,
18 ₂ ... Upper pin part, 18 ₃ ... Lower pin part, 19...
...Top notch, 20...Bottom notch, 21...Protrusion.

Claims (1)

[Claims for Utility Model Registration] A hammer arm 14 connected to rotating bodies 011 and 012 that rotate around a drive shaft 07 arranged in a vertical direction, and a horizontal hole 15 into which the hammer arm 14 is removably inserted. Hammer body 16 having
and the hammer arm 14 and the hammer body 1
A pin hole 17 with a circular cross section formed over 6
and a hammer pin 18 having approximately the same diameter as the pin hole 17 and inserted into the hammer pin 18, which is inserted into the pin hole 17.
are an upper pin hole 17 ₂ and a lower pin hole 17 ₃ that are located above and below the horizontal hole 15 of the hammer body 16 and are vertically symmetrically formed therein, and a central pin hole 17 ₁ that is formed in the hammer arm 14. Therefore, the central pin hole 17 of the hammer arm 14
A protrusion 21 is formed at the lower part of the proximal end of the hammer arm 14 of No. ₁ , and the hammer pin 18 is inserted into the upper pin hole 17 ₂ and has an upper notch 19 on one side corresponding to the upper pin hole 17 ₂ . a lower pin portion 18 ₃ having a lower notch ₂₀ that is inserted into the lower pin hole 17 ₃ and corresponds to the lower pin hole 17 ₃ and the protrusion 21 below the upper notch 19; A hammer for a crusher, characterized in that it has a central pin portion 18 ₁ located between 18 ₂ and 18 ₃ and inserted into the central pin hole 17 ₁ . A hammer for a crusher according to claim 1, wherein the protrusion 21 and the upper and lower notches 19 and 20 are crescent-shaped in a mutually complementary relationship.