JP2001287835A - Hopper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hopper provided with a smoothing mechanism capable of greatly saving the labor and time required for loading and smoothing work when a conveyance body such as a dump truck, etc., is loaded with such objects to be conveyed as sediment and the like for the purpose of carrying out them. SOLUTION: The hopper is provided with a main body (11) and the smoothing mechanism. Such object to be conveyed as sediment and the like are stored in the body (11), from which the stored objects to be conveyed are dropped through a door free to be opened/closed, which is formed in the bottom part of the body (11), on the downward conveyance body such as the dump truck and the like. The smoothing mechanism is provided with contact parts (25, etc.) made to contact the objects to be conveyed, which are dropped from the bottom part of the body (11) and accumulated on the conveyance body, a moving mechanism (a part of 20) for moving the contact parts (25, etc.) backward and forward, and a remote control part (14) of the moving mechanism (the part of 20) in order to smooth the objects to be conveyed, which are accumulated on the conveyance body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper such as an earth and sand hopper, and more particularly to a hopper having a leveling mechanism for enhancing a transporting and storing function.

[0002]

2. Description of the Related Art A sediment hopper used for carrying out residual soil includes a main body for storing sediment to be transported and a support mechanism such as a support leg for supporting the main body at a high place. Earth and sand are dropped and stored in a belt conveyor or the like formed above the main body through the open end surface of the main body. Earth and sand are dropped onto a carrier such as a dump truck arranged below the main body through a dropper covered with an openable door formed at the lower part of the main body,
It is carried out.

[0003] The driver of the dump truck positions the dump truck so that the carrier of the dump truck is located directly below the dropper at the bottom of the hopper, and then descends from the driver's seat to open and close the door provided near the hopper. Move to the console. The operation table of the opening / closing door is installed at a high place near the hopper so that the amount of earth and sand loaded on the loading platform of the dump truck can be observed well. By operating a button attached to the operation table of the opening and closing door, the driver loads the earth and sand while observing the loading state of the earth and sand dropped onto the cargo bed through the opening and closing door through the opening at the bottom of the hopper.

[0004] A layer of earth and sand deposited and deposited from the main body of the hopper onto the bed of the dump truck has a mountain-like shape having a maximum height immediately below the drop opening. For this reason, a useless empty space is formed at the foot of the mountain, and the loading efficiency on the dump truck decreases. Japanese Patent Application Laid-Open No. H11-130269 proposes attaching a leveling mechanism to a hopper in order to prevent such a decrease in the loading efficiency of a dump truck.

[0005] That is, a leveling mechanism is provided on the support leg on the side where the dump truck enters and exits, to contact the earth and sand loaded on the loading platform of the dump truck and to deform its packing form. The driver of the dump truck lowers the leveling mechanism by its own weight along the support legs to make it accessible to the pile of sediment loaded on the bed, and then moves the dump truck back and forth to remove the soil. Perform leveling.

[0006]

In the above-mentioned prior art earth-sand leveling mechanism, the earth and sand on the cargo bed is leveled by moving the dump truck back and forth. However, due to the structure of the dump truck, the loading state of the earth and sand on the loading platform cannot be observed from the driver's seat. For this reason, it is necessary to confirm the loading state of the earth and sand once from the driver's seat and climbing up to the operation table of the above-mentioned door. Further, in order to load additional earth and sand even when the confirmation of the state of loading of earth and sand is not taken into consideration, the driver must once get out of the driver's seat of the dump truck and operate the opening / closing door again.

For this reason, the driver has to go back and forth between the driver's seat of the dump truck and the operation console of the opening and closing door many times, and as a result, there is a problem that the work of loading the earth and sand takes time and labor. . Therefore, one object of the present invention is to allow a worker such as a driver to load and level earth and sand without repeatedly going back and forth between a driver's seat of a dump truck and a control panel of an opening / closing door. It is an object of the present invention to provide a hopper with a leveling mechanism.

Further, in the conventional leveling mechanism, since the leveling plate or the like is brought into contact with the pile of the earth and sand by the weight of the leveling mechanism, the depth of the leveling plate or the like penetrating into the inside of the soil tends to be insufficient. Becomes As a result, when leveling, it is necessary to reciprocate the dump truck many times, and there is a problem that the work for loading the earth and sand takes time and labor. Therefore, another object of the present invention is to provide a hopper with a leveling mechanism capable of loading and leveling earth and sand without an operator such as a driver reciprocating a dump truck many times. .

Further, in the conventional leveling mechanism, since the leveling plate and the connecting plate are both formed of thin angle members, the contact area with earth and sand is insufficient. As a result, when leveling, it is necessary to reciprocate the dump truck many times, and there is a problem that the work for loading the earth and sand takes time and labor. On the other hand, if the contact area with earth and sand is made too large by forming the leveling mechanism with a wide plate or the like, there may be a problem that the leveling mechanism is broken by the sand pressure. Therefore, still another object of the present invention is to provide a hopper with a leveling mechanism in which the contact area with earth and sand is not excessive or insufficient.

[0010] Further, the problem caused by the unevenness of the earth and sand loaded on the bed of the dump truck also arises with the earth and sand stored inside the hopper. In other words, in the conventional hopper, the earth and sand conveyed by a belt conveyor or the like is dropped into the central part of the hopper through the upper open end surface, so that a mountain is formed at the dropped location, and waste is generated at the foot of the hopper. Free space is created. Therefore, another object of the present invention is to provide a hopper which can effectively use a storage space.

[0011]

SUMMARY OF THE INVENTION A hopper according to a first aspect of the present invention which solves the above-mentioned problems of the prior art stores articles to be transported and passes the articles being stored downward through an openable / closable door formed at the bottom. A main body that is selectively dropped on the carrier, a contact portion that is dropped from the main body and is brought into contact with a conveyed object deposited on the carrier, a moving mechanism that moves the contact part back and forth, and the moving mechanism And a leveling mechanism for leveling the transported material deposited on the transporting body by providing the remote control unit.

A hopper according to a second aspect of the present invention, which solves the above-mentioned problems of the prior art, stores articles dropped and deposited from an upper transporting body through an open end face, and stores the articles through an openable door formed at the bottom. A main body for selectively dropping the conveyed material on the lower conveyer, a contact portion formed on an open end face of the main body and brought into contact with the conveyed material deposited on the upper part of the main body, By providing a moving mechanism for moving the contact portion back and forth, the height of the conveyed goods stored inside the hopper is made uniform, and the storage amount is increased.

[0013]

According to a preferred embodiment of the present invention, the operation unit of the moving mechanism controls the operation of dropping a conveyed object such as earth and sand from the hopper body onto a conveyer such as a dump truck. By being installed at the same location as the operation unit installed at a high place near this main unit for remote operation, it is possible to drop and level the conveyed product from the hopper at the same location Have been.

According to a preferred embodiment of the first and second aspects of the present invention, the contact portion of the leveling mechanism with the conveyed object protrudes discretely downward from the beam. It has a comb-like shape with a plurality of downwardly projecting bodies to be pressed. Further, the plurality of downward protruding members are configured to have different shapes depending on the type of the transport member, and to be detachably attached to the beam-like member.

According to another preferred embodiment of the first and second inventions, a moving mechanism for moving the contact portion of the leveling mechanism up and down is further provided, so that the tip of the contact portion has a desired depth. As a result, it is possible to ensure that the material is cut into the layer of the conveyed material.

[0016]

1 and 2 are a side view and a front view, respectively, showing the structure of a hopper according to an embodiment of the present invention. The hopper according to this embodiment includes a main body 11 for storing earth and sand such as residual soil generated at a civil engineering work site, a plurality of support legs 12 for supporting the main body 11 at a high place, and an upper open end face of the main body 11. A belt conveyor 13 for dropping and accumulating earth and sand into the interior of the main body 11, and a belt conveyor 13 which is installed at a high place for opening and closing the openable and closable doors G <b> 1 to G <b> 3 formed on the bottom of the main body 11. Operation panel 14.

The hopper of this embodiment has a loading / unloading device 20 for leveling the loaded earth and sand dropped on the bed of the dump truck, and a support leg 12 for moving the loading device 20. There is provided a leveling mechanism for loaded earth and sand, which comprises two support mechanisms 21 mounted in a horizontal state.
Further, the hopper is moved from the belt conveyor to the main body 1.
1 is an apparatus 3 for leveling stored sediment for leveling stored sediment dropped into the main body 11 through the open end face of the main body 11.
0 and two support mechanisms 31 attached to the upper end surface of the main body 11 in a substantially horizontal state in order to run the leveling device 30.

As shown in a partially enlarged view of FIG. 3, the loading earth and sand leveling device 20 includes a saddle 22 on which wheels W running on rails RL installed on a support mechanism 21 are attached.
A contact portion with the earth and sand held on the saddle 22, an elevating mechanism for vertically moving the contact portion with the earth and sand, and a propulsion mechanism for moving the saddle 22 in the horizontal direction are provided. A rack R1 is formed on the support leg 12, and a pinion P1 to be meshed with the rack R2 is fixed to a saddle 22, and is rotated by a motor M1 remotely controlled from the operation panel 14, so that the saddle 22 is wheeled. W
Is caused to run on the rail RL.

The contact portion with the earth and sand has a comb-like shape including a beam 24 and a plurality of downward projections 25 projecting downward from the beam 24. Both ends of the beam 24 at the contact portion are fixed to a vertical member 23 attached to the saddle 22 so as to be able to move up and down. A rack R2 is formed at the center of the vertical member 23, and a pinion P2 that is engaged with the rack R2 is fixed to the saddle 22,
By being rotated by the motor M2 remotely controlled from the operation panel 14, the vertical member 23, and thus the contact portion composed of the beam-shaped body 24 and the downwardly protruding body 25, becomes the saddle 22.
Up and down.

As shown in the partial plan view of FIG. 4, the lower protruding body 25 fixes iron angle members 25c and 25d to the front and rear of an iron cylindrical body 25a by welding, and further has one end of the cylindrical body 25a. It has a structure in which a portion is fixed to a rectangular flange 25b by welding. Then, a screw is screwed into a screw hole formed on the beam-like body 24 side through openings formed at four corners of the flange 25b, so that the lower protruding body 25 is detachably attached to the beam-like body 24. Several kinds of different shapes are prepared for the lower protruding body 25, and an optimum shape is selected according to the physical properties of the conveyed material such as earth and sand, such as particle size, hardness, and viscosity. Is done.

The storage soil leveling device 30 disposed on the upper end surface of the main body 11 also has a configuration similar to that of the piled soil leveling device 20. However, the leveling device 30 does not have an elevating mechanism for moving the contact portion with the earth and sand in the vertical direction, but has only a mechanism for moving the contact portion back and forth.

When the driver of the dump truck stops the dump truck so as to be located directly below the doors G1 to G3, the driver gets off the driver's seat and operates the operation panel 14 installed at a high place to remove the soil. Load on the loading platform. By this operation, some of the openable and closable doors G1 to G3 are opened, and the sediment stored in the main body 1 is dropped onto the dump truck bed and loaded. The operation panel 14 is arranged at a high place such as a high platform near the main body 11 so that the state of the dropping of the earth and sand can be observed in detail.

The driver of the dump truck drops the above-mentioned earth and sand,
After the loading, or during the period of dropping and loading of the earth and sand, the earth and sand loaded on the bed of the dump truck is leveled by remotely operating the loading and sand leveling device 20 from the operation panel 14. Since the leveling device 20 moves on the soil loaded on the bed of the dump truck, the state of the soil is observed in detail from a high place where the operation panel 14 is installed without moving the dump truck. It can be performed.

Regarding the storage soil leveling device 30 disposed on the upper end surface of the hopper main body 11, the driver of the dump truck does not operate the device, but the television is provided in the central control room for controlling the belt conveyor. This is performed while observing the sedimentation state of the sediment on the upper part of the main body of the hopper with a camera.

In the above, the structure in which the lifting mechanism of the contact portion of the loading / unloading device 20 is realized by a pinion and a rack is exemplified. However, an appropriate lifting mechanism having a power transmission mechanism using a belt, a chain, or the like is used. It can also be configured. Alternatively, if the nature and quantity of the loaded earth and sand are almost fixed and large fluctuations are not expected, the equipment cost can be reduced by omitting the lifting mechanism of the loaded earth and sand leveling device 20. Can also.

At this time, at the retracted position on the support mechanism 21 of the loaded earth and sand leveling device 20, the contact portion with the earth and sand is raised or lowered by manual operation, or the length of the downwardly projecting body is changed to change the length of the earth and sand. It is also possible to adopt a configuration similar to that in which the contact portion with the contact is raised and lowered substantially. Conversely, in the above embodiment, the case where the storage soil leveling device 30 does not have a mechanism for raising and lowering the contact portion with the soil is described.
It is also possible to add an elevating mechanism.

The hopper according to the present invention has been described by taking as an example the case where the conveyed material is earth and sand such as residual soil. However, it is clear that the hopper of the present invention can be applied not only to earth and sand, but also to appropriate granules such as grains and cement, or powders.

Further, the present invention has been described by taking, as an example, a hopper configured to carry a conveyed object such as earth and sand into a main body portion using a belt conveyor. However, methods for bringing earth and sand into the main body of this hopper include other methods such as putting earth and sand such as residual soil into buckets suspended by a crane instead of a belt conveyor, and transporting them from the ground to the inside of the hopper body. Can be adopted.

[0029]

As described above in detail, the hopper according to the present invention enables the contact portion, which is brought into contact with the conveyed material deposited on the carrier of the dump truck dropped from the main body portion, to be able to move back and forth. Since the mechanism is operated remotely, the driver of the dump truck does not need to repeatedly go back and forth between the driver's seat and the high place where the operation console is installed. And time can be greatly reduced.

Further, in the hopper according to the preferred embodiment of the present invention, since the contact portion with the load such as earth and sand is raised and lowered not by its own weight but by using an elevating mechanism, the contact portion has an optimum depth. It is possible to cut into only the inside of the earth and sand, and the leveling operation can be completed in a short time, and it is possible to finish a sufficiently flat and good package.

Further, the leveling mechanism of the hopper according to the preferred embodiment of the present invention comprises a beam-like member having a contact portion with a conveyed object such as earth and sand, and a plurality of downward projecting members projecting downward from the beam-like member. It has a function of releasing a part of the earth and sand from the gap by exhibiting a comb-teeth shape provided with. For this reason, it is possible to prevent the occurrence of excessive sediment pressure, which is a problem when the contact portion is formed in a plate shape, and to reduce the generated sediment pressure, which is a problem when the contact portion is formed only of a thin member such as an angle. It is possible to generate an adequate amount of sediment pressure without causing a shortage.

The hopper according to the second aspect of the present invention is formed on the open end face of the main body, and is configured to contact the conveyed material deposited on the upper portion of the main body, and move the contact portion back and forth. Since the configuration is provided with a moving mechanism for moving the hopper, the height of the conveyed material such as earth and sand stored inside the hopper is made uniform, and the storage space of the main body can be effectively used. As a result, it is possible to store a desired amount of earth and sand without increasing the size of the main body.

[Brief description of the drawings]

FIG. 1 is a side view showing an overall configuration of a hopper according to an embodiment of the present invention.

FIG. 2 is a front view showing the overall configuration of the hopper of the embodiment.

FIG. 3 is a partially enlarged front view showing a configuration of an apparatus for leveling the loaded earth and sand of the hopper of the embodiment.

FIG. 4 is a partial plan view showing a configuration of a lower projection of a contact portion of the leveling device of the embodiment with the earth and sand.

[Explanation of symbols]

 11 Main unit 12 Support legs 13 Belt conveyor 14 Operation panel G1-G3 Door 20 Load leveling device 21 Support mechanism 22 Saddle 24 Beam 25 Downward projection 30 Leveling device for stored soil

Claims (11)

[Claims] A main body for storing the conveyed articles and selectively dropping the conveyed articles onto a lower conveying body through an openable / closable door formed on a bottom portion; By providing a contact portion that is brought into contact with the transported material deposited on the transporter, a moving mechanism that moves the contact portion back and forth, and a remote operation unit of the moving mechanism, the transported material that is deposited on the transporter is provided. A hopper comprising a leveling mechanism. 2. The remote control unit according to claim 1, wherein the remote control unit of the moving mechanism is installed at a high place near the main body in order to remotely control the dropping of the conveyed object from the main body onto the conveyance body. A hopper characterized by being installed in the same place as the operation unit. 3. The apparatus according to claim 1, wherein a contact portion of the leveling mechanism with the conveyed object is a beam-like body and a plurality of downwardly projecting bodies discretely projecting downward from the beam-like body. A hopper having a comb-tooth shape comprising: 4. The hopper according to claim 3, wherein said plurality of downwardly projecting bodies are selected in different shapes according to the type of said carrier, and are detachably attached to said beam-like body. . 5. The hopper according to claim 1, further comprising a moving mechanism for moving a contact portion of the leveling mechanism up and down. 6. A moving mechanism for moving the contact portion back and forth according to claim 1, wherein a saddle with wheels for supporting both ends of the beam-like body and a wheel of the saddle are mounted. A hopper comprising: a rail extending back and forth; and a rack and pinion mechanism for moving the saddle back and forth on the rail. 7. An article to be dropped and deposited from an upper carrier through an open end face is stored, and the article being stored is selectively dropped onto a lower carrier through an openable / closable door formed at a bottom portion. A main body portion, a contact portion formed on an open end face of the main body portion and brought into contact with a conveyed material deposited on an upper portion of the main body portion, and a moving mechanism for moving the contact portion back and forth. A hopper for leveling a conveyed object deposited on an upper portion of the hopper. 8. The comb according to claim 7, wherein the contact portion of the leveling mechanism with the conveyed object includes a beam-like body and a plurality of downwardly projecting bodies that are discretely projected downward from the beam-like body. A hopper having a tooth shape. 9. A hopper according to claim 8, wherein said plurality of downwardly projecting bodies are selected from different shapes depending on the type of said transport body, and are detachably attached to said beam-like body. . 10. The hopper according to claim 7, further comprising a moving mechanism for moving the contact portion up and down. 11. A moving mechanism for moving the contact portion back and forth in each of claims 7 to 10, wherein a saddle with wheels for supporting both ends of the beam-like body and a wheel of the saddle are mounted. A hopper comprising: a rail extending back and forth; and a rack and pinion mechanism for moving the saddle back and forth on the rail.