JPH0434215Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to crushing of excavated soil at road construction sites, construction sites, etc., and in particular, it uses a sieve to sort soil for appropriate crushing in a clod crusher, and This invention relates to an excavated soil crushing device designed to crush the clod crusher while protecting it, to make the excavated soil to be sorted recyclable, and to transport it to the next process.

Conventionally, excavated soil, which is produced in large quantities and in a wide variety of forms during underground construction work such as gas pipelines, water and sewage pipes, and electric cables, as well as various types of construction work, has been subject to various tests such as compressive strength, moisture content, etc. Because the conditions such as viscosity, granule state, etc. are uncertain, it was considered unsuitable for reuse.

For this reason, various types of excavated soil are either used for reclamation at beaches, rivers, lakes, etc., or are simply transported and dumped to unused or remote areas, which is extremely inefficient and may cause pollution depending on the landfill location. Due to the development of environmental conservation measures, landfill and dumping sites have become increasingly remote, and public restrictions have become stricter, making it a social problem.

Therefore, recently, some areas have begun to recycle excavated soil during construction, but this has not yet been applied to all excavated soil, but only to excavated soil that meets certain conditions. There is no one that can be processed all at once, easily handled, and silently, and there is a strong demand for one.

Therefore, the present invention was developed in consideration of the above facts, and any excavated soil is thrown into the sieve surface of the sieve machine, and oversized lumps and foreign substances are sorted out in order to be properly crushed by the clod crusher. , and when excavated soil unsuitable for crushing is sent to the soil crusher, it is crushed together with the transport conveyor while protecting the crushing blades and made into a recyclable state and sent to the next process. The purpose of this project was to provide a crushing device for excavated soil.

That is, the present invention passes through a sieving machine that removes oversized lumps and foreign matter and brings the excavated soil into contact with the conveyance path to a desired height, and orients the excavated soil in the traveling direction of the conveyance path. Further, in order to remove soil covering hard objects such as stones, a rod-shaped control body that can be swung in the transport direction of the transport path is suspended;
Further, the control body is always biased so as to be able to reciprocate in the vertical direction on the downstream side of the control body and rotate at a predetermined position on the conveyance path to crush the transported excavated soil,
In addition, a crushing blade is provided so that when a foreign object such as an unbreakable stone block is mixed into the excavated soil being transferred on the conveyance path, a crushing blade is arranged so that the excavated soil returns to the predetermined position after avoiding it upward. The summary is what was done to resolve the issue.

Hereinafter, in order to further clarify the gist of the present invention described above, one embodiment thereof will be described with reference to the drawings.

As shown in FIGS. 1 to 5, a crushing device 1
is disposed in a trough-shaped portion C formed by the entrance table 11 and the surrounding wall 12 which is disposed facing each other for discarding the sorted uncrushable lumps. Further, a turret-shaped frame 13 is erected in the trough C shape, and bearings 132, 13 are attached facing each other substantially at the center upper surfaces of the two opposing joists 131, 131 of the frame 13.
2 pivotally supports reversing shafts 141, 141 protruding from both sides at one end of the reversing type vibrating sieve machine 14 (hereinafter simply referred to as the sieving machine) so that they can be rotated 180 degrees through earthquake-proofing materials 133, respectively. ing.

Furthermore, a monorail 135 is installed on the frame 13 and the beams 134, 134, and slidably supports a lifting device 136 such as a hoist or chain block.
A terminal end of a cable 137 etc. stretched by the lifting machine 136 is connected to the other end of the sieving machine 14. The sieving machine 14 has a reversing shaft 141 and a cable 1 at the other end.
37, etc., a vibration motor 142 is attached to promote sorting of the supplied surplus soil and prevent clogging. The bearing 132 pivotally supports the reversing shaft 141 via an anti-seismic material 133 to prevent this.

Furthermore, seismic isolation protrusions 138 are provided at the positions where the bearing 132 is supported and the other end of the sieving machine 14 is in contact with the joist 131 when the other end is in the normal or reversed state, and the other end of the sieving machine 14 is is the inversion axis 1
A shaft 143 protruding to both sides in parallel with the shaft 41 is brought into contact with an attached seismic isolation seat 144. The seismic isolator 144 is rotatably connected to the seismic member 143 via the antiseismic material 133, so even when the sieving machine 14 is reversed, the seismic isolator 144 always turns upward due to its own weight, so that it can be rotated between normal and reverse directions. The earthquake-proof protrusion 138 and the earthquake-proof seat 144 reliably come into contact with each other and absorb vibrations and shocks.

A raw material hopper 15 is located below the sieve 14.
is suspended from the joist 131, and the raw material hopper 15 temporarily stores the residual soil to be sorted that has passed through the sieve 14, and feeds it onto a belt feeder Bf that continuously runs downward in the direction of arrow a. .

Near the outlet on the downstream side of the hopper 15, there is a control body 16 for aligning and leveling the excavated soil to be sorted, and also for peeling off soil covered with hard objects such as stones.
The control bodies 16 are rod-shaped, and the upper part of the control body 16 is pivotally supported to be swingable in a direction parallel to the belt feeder Bf, and the lower ends of the control bodies 16 are suspended in the air. A duct 17 is extended on the downstream side of the control body 16, and a clod crusher 1 is installed directly opposite both walls of the intermediate part of the duct 17.
A slit hole 171 is provided through which the rotary shaft 181 of No. 8 can pass through and allow it to reciprocate up and down.

The clod crusher 18 is connected to a frame 182 that straddles the duct 17, a right triangular support tower 186 that supports the frame 182 on an oblique side 186a, and a cable 187 via a pulley 188 at the top corner. Weight 189
The frame body 182 pivotally supports the rotating shaft 181 passing through the slit hole 171 at its lower end, and a driving motor 183 fixed near the other end.
The rotating shaft 181 is connected to the arrow b through the chain 184.
Rotate in the direction. The control body 1 is attached to the rotation shaft 181.
A plurality of crushing blades 181a slightly tapered toward the tip are installed in order to loosen viscous lumps, etc. in the excavated soil to be sorted, which is oriented and leveled and fed by the crushing blades 181a. Note that the frame 182 and the weight 189 are connected by a cable 187 or the like via a pulley 188 at the top corner.
Since the frame body 182 side is made slightly heavier, the frame body 182 which is in contact with the oblique side 186a through the rollers 185, etc., tries to descend to the lowest end, so that the crushing blade 181a moves to the desired position above the belt feeder Bf. The stopper 186b is placed on the oblique side 1 so as to leave a gap.
It is provided protrudingly on 86a. In addition, in order to prevent uncrushable materials such as stone blocks from being mixed in the excavated soil to be sorted and being destroyed by hitting the crushing blade 181a or damaging the belt feeder Bf, the frame 18 is
Since the second side is only slightly heavy, the crushing blade 181a rotates and lifts up and escapes with a minute shock, so it will not be damaged, and in particular, the sorted excavated soil that is large lumps and cannot be crushed properly. , crushing blade 1
It is placed on top of the belt feeder 81a, is rotationally guided upward, and is transferred to the downstream side of the belt feeder Bf.

The operation of the excavated soil crushing device 1 configured as described above will be explained below.

A large amount of excavated soil generated at construction sites, road construction sites, etc. is indiscriminately transported by dump trucks, bulldozers, etc. to the top of the approach platform 11, and is fed onto the sieve 14 in the correct position. The sieve machine 14
The excavated soil supplied above is moved by the vibration motor 142.
The vibration of the excavated soil, which can be crushed and improved, is efficiently separated into waste soil and waste materials. The excavated soil to be sorted that has passed through the sieve 14 is transferred to the raw material hopper 1.
5 and was temporarily stored in the belt feeder.
Continuously supplied on Bf. Belt feeder Bf
The excavated soil to be sorted that has been conveyed to the control body 16 is made to have a nearly constant stacking height on the belt feeder Bf, and elongated soil blocks or stone blocks that have progressed diagonally are corrected in the running direction of the belt feeder Bf. The soil is oriented and fed to the clod crusher 18. The crushing blade 181a loosens the excavated soil to be sorted while rotating in the direction of movement of the excavated soil to be sorted.
When hitting a, the frame 182 and the weight 189 of the clod crusher 18 are connected with the cable 187 etc. as described above, and the crushing blade 181a is always connected to the belt feeder.
Since a delicate balance is maintained near the top of Bf, the crushing blade 181a is designed to immediately return to the predetermined position after avoiding upward movement while rotating.
The excavated soil, which is protected from damage to the soil a and loosened by the clod crusher 18, is supplied onto the belt conveyor B1 to be sent to the next process.

As explained above, the excavated soil crushing device according to the present invention uses a sieve to remove oversized lumps and foreign matter from any excavated soil generated at construction sites, road construction sites, and other civil engineering works. Once the stones are sorted and transported along the conveyance path, they are orientated and leveled by a control unit suspended on the conveyance path, and furthermore, the soil adhering to stones, etc. is removed in advance, and the flow is carried out in the wake. When fed to the soil clod crusher on the side, the excavated soil is loosened by the crushing blades of this machine, and if a stone lump etc. that cannot be crushed comes into contact with the crushing blade, the crushing blade will move vertically. The crushing blade and The belt feeder, etc. is protected from damage, allowing for efficient crushing.
The resulting soil can be used appropriately for various construction works, road works, etc., saving resources and costs, and having a very large ripple effect on other processes. This is an excellent idea.

[Brief explanation of the drawing]

The drawings show one embodiment of the excavated soil crushing apparatus of the present invention. Figure 1 is a plan view of the entire apparatus, Figure 2 is a partially cutaway front view, and Figure 3 is a diagram of a reversible vibrating sieve. FIG. 4 is a partially cutaway front view of the reversing shaft and earthquake-proof structure, FIG. 4 is a sectional view taken along line AA in FIG. 1, and FIG. 5 is a front view of the main parts. DESCRIPTION OF SYMBOLS 1... Crushing device, 14... Reversing type vibrating sieve machine, 16... Control body, 18... Clod crusher, 18
1...Rotating shaft, 181a...Crushing blade, 182...
Frame body, 183... Drive motor, 187... Cable,
188...pulley, 189...weight, Bf...belt feeder.

Claims (1)

[Scope of utility model registration request] The excavated soil is passed through a sieve that removes oversized lumps and foreign matter, and is brought into contact with the excavated soil transported on the conveyance path to a desired height. A rod-shaped control body that can swing in the transport direction of the conveyance path is installed in order to remove soil that is covered by hard objects, and furthermore, the control body can be constantly reciprocated in the vertical direction on the downstream side of the control body. It is designed to rotate at a predetermined position on the conveyance path while being energized to crush the excavated soil to be transferred, and to prevent uncrushable stone blocks or the like from being contained in the excavated soil being transferred on the conveyance path. An apparatus for crushing excavated soil, characterized in that a crushing blade is disposed so that when foreign matter enters the soil, it escapes upward and then returns to the predetermined position, thereby crushing the excavated soil.