JPS5855952Y2 - Crushing and sorting equipment - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a crushing and sorting device for earth and sand.

Conventionally, for example, in management construction work, etc., earth and sand and soil conditioner from a soil hopper and a soil conditioner hopper are mixed by a soil mixer, and then supplied to a hole to bury a pipe.

When supplying earth and sand to this earth and sand hopper, ordinary earth and sand is scooped up with a backhoe and placed directly into the earth and sand hopper.

For this reason, large stones or the like may get mixed into the earth and sand hopper, and in such cases, the earth and sand mixer may break down.

In order to prevent such a situation, conventionally, the input port of the earth and sand hopper has been covered with a sieving member such as a wire mesh.

However, as mentioned above, the soil scooped by a backhoe or the like is directly placed on the sieving member, so if there are lumps of soil, the soil may not fall smoothly into the soil hopper.

For this reason, the workers had no choice but to break up the lumps of earth and sand with sticks, etc., resulting in extremely poor work efficiency.

This invention was made by focusing on the problems of the conventional method, and the first sieve member swings one end of the sieve member in the left and right direction.
The sieve member is connected to the frame through a link, and the other end of the sieve member is connected to the frame through a second link that swings while maintaining parallel to the first link. A driving means for swinging the second link is connected through the elongated hole, and a rotating shaft to which a radial claw is attached is provided above the sieve member, and the rotating shaft and the frame are connected by an elastic body. The aim is to solve the above problems by doing so.

This invention will be explained below based on the drawings.

1 to 4 are diagrams showing an embodiment of this invention.

First, the configuration will be explained. In FIG. 1, 1 is an earth and sand mixer, and this earth and sand mixer 1 has a housing 2.

A horizontal rotating shaft 3 rotated by a drive device (not shown) is rotatably supported in the housing 2, and a plurality of paddles 4 are attached to the outer periphery of the rotating shaft 3. The earth and sand supplied into the earth and sand mixer 1 by rotation are transferred to the left in the figure by the paddle 4.

Further, a sand hopper 5 is fixed to the housing 2, and a rectangular frame 6 is fixed to the upper end of the sand hopper 5.

Brackets 7 are fixed to the left ends of the opposite sides of the frame 6, and one end of a first link 8 that swings in the left-right direction is connected to these brackets 7 through a pin 9. are rotatably connected.

Reference numeral 10 denotes a sieve member, and one end of the sieve member 10 is rotatably connected to the other end of the first link 8 via a pin 11.

As a result, one end of the sieve member 10 is connected to the frame 6 via the first link 8.

This sieve member 10 has a rectangular frame 12.
As shown in FIG. 3, the inner space is partitioned by a plurality of rod members 13 arranged in a grid pattern.

As shown in detail in FIGS. 2 and 3, brackets 1-14 are fixed to the right ends of the frame 6 on opposite sides thereof, and each of these brackets 14 has a dogleg shape. The bent portion of the second link 15 is rotatably connected by a pin 16.

One end of the second link 15 is rotatably connected to the other end of the sieve member 10 via a pin 17.

As a result, the other end of the sieve member 10 is connected to the frame 6 via the second link 15.

The second link 15 swings in the left-right direction while the link portion between the pins 16 and 17 remains parallel to the first link 8.

On the other hand, a set of shafts 18 are arranged in parallel at the lower end of the earth and sand hopper 5, and a plurality of paddles 19 are fixed to the outer periphery of these shafts 18.

As the shaft 18 rotates, the paddle 19 transfers the earth and sand supplied into the earth and sand hopper 5 to the housing 2 of the earth and sand mixer 1.

A disc-shaped cam plate 20 is fixed to both ends of one shaft 18, and a pin 21 is provided upright on the outer surface of this cam 20.

Reference numeral 22 denotes a connecting bar, and one end of the connecting bar 22 is rotatably connected to the cam plate 20 via a pin 21.

A pin 23 is erected at the other end of the connecting bar 22, and this pin 23 is slidably inserted into an elongated hole 24 formed at the other end of the second link 15.

This elongated hole 24 is formed in an arc shape centered on the pin 16.

The aforementioned cam plate 20 and connecting bar 22 constitute a driving means 25 for swinging the second link 15, and this driving means 25 is connected to the second link 15 through the elongated hole 24.

Reference numerals 26 and 27 denote a plurality of bearings provided above mutually opposing sides of the frame body 6, and these bearings 26 and 27 are spaced apart from each other by a certain distance.

Above the sieve member 10 are a plurality of rotating shafts 2 parallel to each other.
8 are provided, and both ends of each rotating shaft 28 are rotatably supported by mutually opposing bearings 26 and 27, respectively.

A plurality of claws 29 are attached to each rotating shaft 28 and extend radially at regular intervals in the axial direction. The distance is shorter than the distance between the upper surface of the sieve member 10 and the rotating shaft 28 when the second links 8, 15 are upright.

The bearings 26 and 27 and the brackets 30 and 31 attached to the sides of the frame 6 are connected to springs 32 as elastic bodies.
．． 33, so that the rotating shaft 28 is floatingly supported on the frame 6 by springs 32,33.

A motor 34 is fixed to each bearing 26, and each rotating shaft 28 is driven and rotated by this motor 34.

Next, the action will be explained.

After ordinary soil is scooped out by a backhoe or the like, it is placed on the sieve member 10.

At this time, each rotating shaft 28 is being rotated by the motor 34.

As a result, the claws 29 bite into the lumps in the earth and sand, thereby breaking them up.

At this time, if the lump is a large stone, the spring 32.3
3 extends and the rotating shaft 28 escapes upward, preventing the two claws from being damaged.

At this time, the shaft 18 is rotating, and the cam plate 20 is rotating in the direction of the arrow shown in FIG.

Assuming that the pin 21 is now in the position as shown in FIG. 2, the first and second links 8 and 15 are in the position shown in FIG.
The pin 23 is inclined, and the pin 23 is in contact with one end 24a of the elongated hole 24, as shown in FIG.

When the cam plate 20 rotates slightly in the direction of the arrow due to the rotation of the shaft 18, the pin 23 of the connecting bar 21 presses one end 24a of the elongated hole 24 upward.

As a result, the second link 15 rotates in the upright direction around the pin 16, urging the sieve member 10 to the left in FIG. 2, and the first link 8 rotates in the upright direction around the pin 9. be moved.

When the second link 15 further rotates to the upright position, there is a space between the pin 23 and the other end 23b, and
The sieve member 10 has a second. Since the inertia force due to the rotation of the first links 15 and 8 is applied, the second link 15,8 has an inertial force. 1st nonku 1
5 and 8 swing freely toward the left in the figure due to the inertial force of the sieve member 10, changing from an upright state to an inclined state.

At this time, due to the weight of the sieve member 10 and the earth and sand placed on it, the second As the first links 15 and 8 are tilted, their swing speed increases.

When the pin 23 comes into contact with the other end 24b of the elongated hole 24, the second. The swinging of the first links 15, 8 is abruptly stopped.

At this time, as mentioned above, the second and first links 15, 8
Since the swinging speed of the sieve member 10 is increasing, a large impact is generated on the sieve member 10.

Therefore, the lump of earth and sand placed on the sieve member 10 is further broken down into fine pieces by this impact, and falls into the earth and sand hopper 5 through between the bars 13.

At this time, stones larger than the mesh formed by the bars 13 remain on the sieve member 10, and the earth and sand are separated from the large stones.

Furthermore, when the shaft 18 rotates, the first . 2nd link 8゜1
5 swings in the opposite direction to the above, and at this time, contrary to the above, there is a space between the pin 23 and the one end 24a of the elongated hole 24, so the second link 15 is free to swing in the right direction. Become.

As a result, the same impact as described above is generated on the sieve member 10, and the clumps of earth and sand are further broken.

Note that the details are the same as described above.

The earth and sand that have fallen into the earth and sand hopper 5 are pushed by the paddle 19 by the rotation of the shaft 18 and transferred into the housing 2.

The earth and sand transferred into the housing 2 are pushed to the left in FIG. 1 by the paddle 4 by the rotation of the rotating shaft 3.

This earth and sand is mixed with a soil conditioner supplied from a soil conditioner hopper (not shown) and then used.

In addition, in this invention, the elongated hole 24 is connected to the pin 16°17.
Alternatively, the second link 15 may be formed between the two links.

Alternatively, the elongated hole 24 may be formed on the connecting bar 22 side, and a pin may be provided upright on the second link 15 side to slidably engage with the elongated hole 24.

As explained above, according to this invention, one end of the sieve member is connected to the frame via the first link that swings in the left-right direction, and the other end of the sieve member is connected to the first link. It is connected to the frame through a dogleg-shaped second link that swings parallel to the link, and a disc-shaped cam plate is attached to the end of the second link, and one end is attached to this via a pin. A driving means consisting of a connecting bar rotatably connected to the cam plate is connected to the second drive means.
An arc-shaped elongated hole centered on the swing pin of the second link is provided in the connecting portion between the link and the sieve member or between the second link and the connecting bar, so that the connection is rotatable and slidable, and the sieve is A rotating shaft with radial claws attached above the member and driven and rotated by a motor is provided, and the rotating shaft and the frame are connected with an elastic body, so that the soil and sand placed on the sieving member can be easily removed even when no operator is present. The lumps are broken up with high efficiency, divided into pieces, and fall through the sieve member.

Therefore, workability is greatly improved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of this invention, Fig. 2 is a side view of Fig. 1, Fig. 3 is a view taken along arrow AA in Fig. 2, and Fig. 4 is an enlarged view of part B in Fig. 2. It is. 6... Frame body, 8... First link, 15
...Second link, 10...Sieve member, 24...Long hole, 25...Driving means,
28... Rotating shaft, 29... Claw, 32
, 33... Spring (elastic body).

Claims (1)

[Scope of utility model registration request] One end of the sieve member is connected to the frame via a first link that swings in the left-right direction, and the other end of the sieve member is held parallel to the first link and swings. A connection bar is connected to the frame through a second link in the shape of a letter, and a disc-shaped cam plate is attached to the end of the second link, and one end is rotatably connected to the cam plate via a pin. A drive means consisting of the following is connected, and an arc-shaped elongated hole is provided in the connecting part between the second link and the sieve member or between the second link and the connecting bar, so that the driving means can be freely rotated and A rotary shaft is provided which is slidably connected and further has a radial claw attached to the upper part of the sieve member and is driven and rotated by a motor,
A crushing and sorting device characterized in that the rotating shaft and the frame are connected by an elastic body.