JPH04100576A - Sifting device with constant feed mechanism - Google Patents

Abstract

PURPOSE:To prevent a transfer part from being operated always to ensure a constant feed of crushed mud by providing a constant feed mechanism adapted to transfer the crushed mud into a battle mixer by driving a transfer part, when the weight of the mud crushed by vibration reaches at least a predetermined value. CONSTITUTION:The mud is introduced and crushed in a vibration part 8 which is excited into vibration by driving a first vibratory motor 16, then passed through a wire net 34 and dropped from one end of a transfer part 10. When the weight of such crushed mud reaches at least a predetermined value, the one end of the transfer part 10 is rockably moved downwards by a rocking mechanism 32 against the force of a spring 30 to turn on a limit switch 26 provided at the lower part of the transfer part 10. When the limit switch 26 is turned on, a transfer screw 20 is driven by a second transfer motor 22 to carry the crushed mud within the transfer part 10 from its one end to the other, so that it is dropped from a discharge opening 36 into a battle mixer 4. The crushed mud in the battle mixer 4 is mixed with cement commensurately with the operation of a constant feed mechanism 24 and stirred by a stirring blade therein to form a cement-mixed soil. This method makes manufacture easy and inexpensive and reduces the device in size with an advantageous practical application.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a quantitative feeding mechanism for a sieving device, and particularly to a mixer truck for collecting and pulverizing muddy soil to generate new cement-containing soil. This invention relates to a quantitative feeding mechanism for a sieving device that is conveyed to a battle mixer.

[Prior Art] A mixer truck or a battle mixer is generally used to collect and crush accumulated mud to produce new cement-mixed soil for reuse.

That is, after collecting and crushing mud, the crushed soil is transported to a mixer truck or battle mixer, and cement is mixed into the crushed soil to generate new cement-mixed soil.

[Problems to be Solved by the Invention] By the way, in conventional sieving devices, when conveying crushed soil to a mixer truck or battle mixer, the conveying section is constantly driven regardless of the amount of crushed soil. The mud that falls from the sieve is transported by the transport section, and even though the mud is not transported in a fixed amount, a fixed amount of cement is always supplied, resulting in the inconvenience of excessive cement being added.

[Object of the Invention] Therefore, in order to eliminate the above-mentioned inconvenience, the object of the present invention is to drive the conveying unit to battle the crushed soil when the weight of the crushed soil after pulverizing the mud by vibration exceeds a predetermined weight. By providing a fixed quantity supply mechanism for conveying to the mixer, the fixed quantity supply mechanism of the sieving device can prevent the conveyance section from being constantly driven regardless of the amount of crushed soil, and can achieve a fixed quantity supply of crushed soil. The aim is to realize this.

[Means for Solving the Problems] In order to achieve this object, the present invention involves crushing mud by vibration, transporting the crushed soil to a battle mixer by a conveying section, and mixing cement into the crushed soil by the battle mixer. In a sieve device that discharges cement-containing soil to a predetermined location, when the weight of the crushed soil exceeds a predetermined weight after pulverizing the mud by vibration, the conveying section is driven to convey the crushed soil to a battle mixer. It is characterized by the provision of a mechanism.

[Function] With the above-described configuration, when the weight of the crushed soil after pulverizing the mud by vibration exceeds a predetermined weight,
The conveyance unit is driven by the quantitative supply mechanism to convey the crushed soil to the battle mixer, and the conveyance unit is prevented from being constantly driven regardless of the amount of crushed soil, thereby achieving a constant supply of the crushed soil.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 to 3 show embodiments of this invention. 1st
In the figure, 2 is a sieving device and 4 is a battle mixer.

The sieving device 2 has a main body 6 having a square columnar frame.
It consists of a vibrating section 8 provided on the upper part of the main body section 6, and a conveying section 10 provided within the main body section 6.

The vibrating part 8 includes an eccentric cam 14 on a rotating shaft 12 supported by the vibrating part 8, and connects the eccentric cam 14 and the first vibration motor 16 fixed to the main body part 6 through a belt 18. I have set it up.

Further, the conveyance section 10 is provided to hold the conveyance screw 20 and to rotate the conveyance screw 20 by the second conveyance motor 22 .

Furthermore, the sieving device 2 includes a quantitative supply mechanism that drives the conveying section 10 to convey the crushed soil to the battle mixer 4 when the weight of the crushed soil after crushing the mud by vibration exceeds a predetermined weight. 24 will be provided.

To be more specific, the quantitative supply mechanism 24 is provided at the lower part of one end of the transport section 10, and includes a limit switch 26 that is turned ON when the one end of the transport section 10 swings downward, a wire 28, and a spring. 30 and a swing mechanism 32, and the transport section 10 is swingably supported by the swing mechanism 32, which is a swing shaft or the like, on the main body 6, and one end of the transport section 10, that is, the left side in FIG. One end of the wire 28 is attached to the end, the other end of the wire 28 is fixed to the main body 6, and one end of the conveyance section 10 is suspended.

The spring 30 is located in the middle of this wire 28.
When the weight of the crushed soil exceeds a predetermined weight, the wire 28 is pulled against the biasing force of the spring 30, and one end of the conveying section 10 is swung downward to reach the limit. The switch 26 is turned on to drive the conveying section 10 and convey the crushed soil to the battle mixer 4.

Reference numeral 34 denotes a wire mesh provided in the vibrating section 8 to regulate the permissible size of the crushed soil after the mud is crushed by vibration.
36 is a discharge port of the conveyance section 10.

Next, the effect will be explained.

The mud thrown into the vibrating section 8 is transferred to the first vibrating motor 1.
The particles are crushed by the vibrating section 8 which is vibrated by the drive of the device 6, pass between the wire meshes 34, and fall to one end side of the conveying section 10.

When the weight of the crushed soil that has fallen onto one end of the transport section 10 exceeds a predetermined weight, the one end of the transport section 10 is swung downward by the swing mechanism 32 against the biasing force of the spring 30, and the soil is transported. The limit switch 26 provided at the bottom of the section 10 is turned on.

When the limit switch 26 is turned on, the second conveying motor 22 drives the conveying screw 20 to convey the crushed soil in the conveying section 10 from one end to the other end, and the crushed soil is discharged from the discharge port 36 into the battle tank. It is dropped into mixer 4.

Cement (not shown) is mixed into the crushed soil fed into the battle mixer 4 in accordance with the drive of the quantitative supply mechanism 24, and is also stirred by a stirring blade (not shown) in the battle mixer 4, and the cement is mixed in. Soil is generated.

As a result, the limit switch 26 is turned on and the conveying screw 20 is driven by the second conveying motor 22 only when the weight of the crushed soil falling on one end side of the conveying section 10 exceeds a predetermined weight. This makes it possible to reliably prevent the transport unit 10 from being constantly driven by the quantitative supply mechanism 24 regardless of the amount of crushed soil, and if cement is added in a fixed amount in accordance with the operation of the transport unit 10, the amount of cement can be increased. Excessive addition can be prevented and proper cement-mixed soil can be generated, and the driving force for driving the conveyance unit 10 and the battle mixer 4, that is, electric power or fuel, is not wasted, and power costs can be saved. Economically advantageous.

Further, since the structure of the quantitative supply mechanism 24 is simple, the structure is not complicated, manufacturing is easy, and costs can be kept low, and the device can be made smaller without increasing its size. For example, it can be moved close to the generation point on a narrow super embankment, improving usability.

Note that the present invention is not limited to the above-described embodiments, and various modifications can be made.

For example, in the embodiment of the present invention, the quantitative supply mechanism is configured to include a limit switch, a wire, a spring, and a swinging mechanism provided at the lower part of the one end side of the transport part. The spring is compressed in the
It is also possible to have a configuration that eliminates wires.

[Effects of the Invention] As described above in detail, according to the present invention, when the weight of the crushed soil after pulverizing the mud by vibration exceeds a predetermined weight, the conveying section is driven to convey the crushed soil to the battle mixer. Since a fixed quantity supply mechanism is provided, the conveyance unit can be driven only when the weight of crushed soil exceeds a predetermined weight.
The quantitative supply mechanism reliably prevents the conveyance unit from being driven all the time regardless of the amount of crushed soil, making it possible to supply the crushed soil in a constant quantity, and the driving force for driving the conveyance unit is not wasted, reducing power consumption. It can save costs and is economically advantageous. Furthermore, since the structure of the quantitative supply mechanism is simple,
The structure is not complicated, manufacturing is easy, costs can be kept low, and the device can be downsized, which is advantageous in practice.

[Brief explanation of drawings]

1 to 3 show embodiments of the present invention, FIG. 1 is a schematic explanatory diagram showing the arrangement of a sieving device and a battle mixer, FIG. 2 is a schematic plan view of the sieving device, and FIG. 3 is a sieving device. FIG. 2 is a schematic partial cross-sectional right side view of FIG. In the figure, 2 is a sieving device, 4 is a battle mixer, 6 is a main unit, 8 is a vibration unit, 10 is a conveyance unit, 12 is a rotating shaft, 1
4 is an eccentric cam, 16 is a first vibration motor, 18 is a belt, 20 is a conveyance screw, 22 is a second conveyance motor, 2
4 is a quantitative supply mechanism, 26 is a limit switch, 28 is a wire, 30 is a spring, 32 is a swing mechanism, 34 is a wire mesh, and 36 is a discharge port. Patent applicant attorney Yoshimi Nishigo Kato Construction Co., Ltd. Patent Attorney Co., Ltd.

Claims (1)

[Claims] 1. The mud was crushed by vibration in a sieving device that pulverized the mud by vibration, then transported the crushed soil to a battle mixer by a conveying section, mixed cement into the crushed soil by the battle mixer, and discharged the cement-mixed soil to a predetermined area. A fixed quantity supply mechanism for a sieving device, characterized in that a fixed quantity supply mechanism is provided for driving the conveying section to convey the crushed soil to a battle mixer when the weight of the crushed soil becomes equal to or greater than a predetermined weight.