JP7177527B2 - mobile sieving car - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mobile sieving vehicle having sifting means on a tiltable bed mounted on a vehicle chassis such as a dump truck capable of traveling on public roads.

2. Description of the Related Art There has already been proposed a dump truck equipped with a sieving device on a tiltable bed mounted on a vehicle chassis such as a dump truck capable of traveling on public roads (see, for example, Patent Document 1). This dump truck has an upper cargo chamber and a lower cargo chamber partitioned in the vertical direction by a partition plate in a foldable cargo box, and further includes a sieve screen in front of the partition plate.

As a dump truck equipped with this sieve net, after loading and transporting granular materials including dust and fine particles, by lifting the packing box at the time of unloading, the dust and fine particles mixed in the load can be removed. When the particles move onto the sieve on the downstream side, small particles pass through the holes in the sieve and enter the lower compartment, and large particles do not pass through the holes in the sieve and enter the upper compartment. It is sifted by movement.

Japanese Utility Model Publication No. 6-35788

However, in this dump truck, the objects to be sieved are loaded in the topmost packing box, and when unloading, the packing box is lifted up and sieved as it moves to the sieving device below. Therefore, when adjusting the lifting angle according to the type of the material to be sieved, the moving amount is different depending on the lifting angle of the packing box. It was necessary to make adjustments while checking the movement amount of the material to be sieved.

In addition, when the loading platform is dumped up, the center of gravity moves upward, so the chassis itself tends to overturn. In addition, it was also necessary to confirm from the outside that all the materials to be sieved had moved from the uppermost packing box to the sieving device.

The present invention eliminates the risk of overturning even when the loading platform is dumped up, and there is no need to check from the outside the movement of the screening objects moving from the loading position of the loading platform, which is a high position on the loading platform, to the screening device. A mobile sieving vehicle that does not need to be confirmed from the outside to confirm that all the objects to be sieved are moved from the loading position of the sieving vehicle to the sieving device at a high position on the loading platform. It is intended to obtain a sieving car.

The mobile sieving vehicle according to the invention described in claim 1 comprises a hopper part for holding an object to be sieved, which is disposed at a high position on a vehicle chassis when a bed that can be tilted is raised;
sieving means arranged at a lower position of the hopper portion when the loading platform is raised;
a non-passing matter storage chamber disposed below the sieving means when the loading platform is raised, and storing non-passing matter of the sieved matter that does not pass through the sieve meshes of the sieve portion of the sieving means;
a passing matter storage chamber arranged below the sieving means when the loading platform rises, and storing the passing matter that has passed through the sieve meshes of the sieve unit;
Dump-up means for raising and tilting the loading platform;
a gate opening/closing means for performing an opening degree operation of a gate portion that limits the amount of movement from the hopper portion to the sifting means;
tilt measuring means for measuring the front-rear tilt and the left-right tilt with respect to the traveling direction of the vehicle chassis;
a pair of left and right jack-up means arranged on both rear end sides of left and right rear wheels supporting the vehicle chassis near the fulcrum portion of the cargo bed, and adjusting the front-rear and left-right tilts of the cargo bed and the vehicle chassis when the vehicle is raised; prepared,
In the driving cabin, the rising inclination angle of the cargo bed by the dump-up means, the opening degree of the gate portion, and the longitudinal and lateral inclinations of the cargo bed with respect to the traveling direction of the vehicle chassis are visible in the driving cabin . Display means for displaying as a display screen of the monitor section of the operation panel in the
jack-up control means for controlling the pair of left and right jack-up means so as to adjust the inclination of the loading platform and the vehicle chassis at the time of rising within a predetermined threshold value ;
The jack-up control means is characterized in that the extension of the pair of left and right jack-up means is individually controlled by the operation panel with respect to the left and right inclinations, and simultaneously controlled with respect to the front and rear inclinations. do .

A mobile sieving vehicle according to the invention recited in claim 2 comprises: a loading amount measuring means for measuring a loading amount of the material to be sieved put into the hopper unit according to claim 1 and loaded onto the loading platform;
A loaded weight display means for recognizing the loaded amount measured by the loaded amount measuring means from outside the vehicle is further provided.

A mobile sieving vehicle according to the invention recited in claim 3 is a photographing means for photographing an image of the hopper part mounted on the loading platform according to claim 1 or 2,
and monitor means for visually recognizing the image of the photographing means in the driving cabin.

The mobile sieving vehicle according to the invention recited in claim 4 is characterized in that the sieving means according to any one of claims 1 to 3 is vibration sieving means capable of vibrating the sieve surface. and

A mobile sieving vehicle according to the invention recited in claim 5, wherein the sieving means according to any one of claims 1 to 4 has a screen mesh that gradually decreases from the upper stage to the lower stage . comprising a sieve surface and a second sieve surface;
The passing matter storage chamber includes a first passing matter storage chamber in which a first passing matter that passes through the first sieve surface but does not pass through the second sieve surface is stored, and a lower stage of the first passing matter storage chamber. a second passing material storage chamber in which the second passing material that has passed through the second sieve surface is stored;
A sliding door for non-passing objects that opens and closes a non-passing object discharge port on the rear end wall of the cargo bed of the non-passing object storage chamber, and a passage object that opens and closes a passing object discharge port on the rear end wall of the cargo bed of the second passable object storage chamber. and a partition door that opens and closes a part of the bottom surface of the first passable object storage chamber to the rear end side of the second passable object storage chamber,
An operation panel that can be operated from the driver's seat in the driving cabin is further provided, and the operation panel is provided with switches that can open and close the non-passing object swing door, the passing object swing door, and the partition door, respectively. It is characterized by having

The present invention eliminates the risk of overturning even when the loading platform is dumped up, and the movement of the objects to be sieved from the loading position of the sieved objects to the sieving device as the sieving means from the outside, which is the high position of the loading platform. You can get a mobile sieving car that you don't have to check. Furthermore, there is an effect that it is possible to obtain a mobile sieving car that does not require confirmation from the outside that all the objects to be sifted move from the loading position of the loading platform to the sieving device. .

1 is a left side view showing the configuration of an embodiment of a mobile sieving car of the present invention; FIG. FIG. 2 is a left side view showing a dumped-up state of the loading platform of FIG. 1; 1 is a front view of a control panel with display means that can be checked in the operating cabin; FIG. 4 is a front view of a control panel different from the control panel in FIG. 3; FIG.

In the present invention, a hopper portion for holding an object to be sieved is arranged at a high position on a vehicle chassis when a bed that can be tilted is raised; and screening means is arranged at a lower position of the hopper portion when the bed is raised. and; a non-passing matter storage chamber disposed at a lower position of the sieving means when the loading platform rises, and stores non-passing matter of the sieved matter that does not pass through the sieve mesh of the sieving unit of the loading platform; and a passing matter storage chamber arranged below the time sieving means, in which the passing matter that has passed through the sieve mesh of the sieve unit is stored.

Dump-up means for raising and tilting the loading platform; Gate opening/closing means for opening the gate portion to limit the amount of movement of the material to be sifted from the hopper portion to the sifting means; Inclination measuring means for measuring the longitudinal inclination and the lateral inclination; arranged on both rear end sides of the left and right rear wheels supporting the vehicle chassis in the vicinity of the fulcrum portion of the loading platform, and measuring the front, rear, left, and right of the loading platform and the vehicle chassis at the time of start-up; and a pair of left and right jack-up means for adjusting the inclination of.

In this mobile sieving vehicle, the rising inclination angle of the loading platform by the dump-up means, the opening degree of the gate, and the front-rear and left-right inclinations of the loading platform with respect to the traveling direction of the vehicle chassis are made visible in the driving cabin. It comprises display means for displaying, and jack-up control means for controlling a pair of right and left jack-up means so as to adjust the inclination of the loading platform and the vehicle chassis at startup within a predetermined threshold value. As a result, even if the loading platform is dumped up, there is no fear of overturning, and there is no need to confirm from the outside the movement of the screening objects moving from the loading position of the screening objects, which is the high position of the loading platform, to the screening device.

That is, the material to be sieved is loaded on the hopper portion, which is positioned at a high position when the loading platform rises, and the loading platform is raised and tilted by the dump-up means. At this time, the jack-up control means individually controls the pair of left and right jack-up means so that the tilts of the load-bed and the vehicle chassis in the front, rear, left, and right at the time of rising are adjusted within a predetermined threshold value, thereby dumping up the load-bed. No more fear of falling over.

Further, after the loading platform is raised and tilted, the opening of the gate portion of the gate opening/closing means is opened, so that the objects to be sieved loaded in the hopper are transferred to the sieving means, the non-passing object storage chamber, and the passage. The material to be sieved moves to the material storage chamber. As a result, it is confirmed by the display device that the cargo bed and the vehicle, which have been tilted forward, are tilted rearward. Therefore, it is not necessary to confirm from the outside the movement of the sieved material moving from the loading position of the sieved material to the sieving device.

In addition, the dump-up means of the present invention may be any device that causes the loading platform to rise and tilt in the same manner as the dump-up means of a normal dump truck. The end of the bed on the side of the driver's cabin rises and the fulcrum is arranged on the side of the opposite end of the bed to allow for the discharge of non-passing material and passing material that has passed through the sieve. In particular, this fulcrum is preferably arranged in the vicinity of the rear tires of the vehicle chassis.

The jack-up means of the present invention may be arranged at both rear end sides of the left and right rear wheels supporting the vehicle chassis in the vicinity of the fulcrum portion of the loading platform, and adjust the inclination of the loading platform and the vehicle chassis at the time of start-up. . In particular, since the jack-up means of the mobile sieving vehicle of the present invention only dumps up the loading platform, it is difficult for a load exceeding the vehicle chassis width to be applied unlike a crane. Therefore, unlike a crane outrigger, which requires an installation width exceeding the width of a vehicle chassis, the outriggers are arranged on both rear end sides of the left and right rear wheels. This makes it possible to carry out a quick sieving process.

As the jack-up control means of the present invention, it is sufficient to control a pair of right and left jack-up means so as to adjust the left and right inclinations of the loading platform and the vehicle chassis when starting up within a predetermined threshold value. That is, in the mobile sieving car of the present invention, the material to be sifted can be moved from the hopper portion of the loading platform to the non-passing material storage chamber and the passing material storage chamber through the screening means without exceeding the width of the loading platform. Anything that adjusts the left and right tilts that accompany the image may be used.

Specifically, the extension pressures of the pair of left and right hydraulic jacks are individually controlled so that the left and right tilts are maintained within a threshold value of, for example, ±3°. More preferably, the extension pressures of the pair of left and right hydraulic jacks may be simultaneously controlled so that the tilt in the front-rear direction is maintained within a threshold value of, for example, ±15°. That is, when the front-rear tilt is large, the threshold value of the front-rear tilt may be held by simultaneously controlling the extension pressures of the left and right hydraulic jacks.

The hopper portion of the present invention includes a gate portion that holds an object to be sieved placed at a high position when a tiltable loading platform rises on the vehicle chassis, and limits the amount of movement to the sieving means by the gate opening/closing means. Any device that performs an opening operation may be used. In addition, in order to prevent the material to be sieved from remaining in the gate section, a linear feeder that moves the bottom plate of the gate section back and forth or a vibrating feeder that vibrates up and down may be provided.

Further, as a preferred aspect of the present invention, a load amount measuring means for measuring the load amount of the material to be sifted into the hopper unit and the load amount measured by the load amount measuring means can be recognized from outside the vehicle. What is necessary is just to have a loading weight display means. As a result, the weight of the material to be sieved loaded in the hopper is measured, so for example, the work of loading the material to be sieved into the hopper is carried out from the side of the mobile sieving vehicle of the present invention using a power shovel or the like. Since the weight of the material to be sifted loaded by the operator of the heavy machinery can be visually checked, the maximum loading capacity is not exceeded, which helps prevent overturning.

As the load weight display means, for example, if it is a display device erected on the upper surface of the ceiling of the driving cabin, it can be visually recognized by the operator who operates the excavator or the like. It may be changed to green, yellow, and red at once, or may be changed more finely in a flashing or lighting state.

Furthermore, as another preferred aspect of the present invention, the vehicle further comprises a photographing means for photographing an image of the hopper portion mounted on the loading platform, and a monitor means for visually recognizing the image of the photographing means inside the driving cabin. As a result, for example, the image of the hopper can be viewed from the driver's seat in the operating cabin, which not only improves work efficiency, but also makes it possible to respond to unexpected situations such as clogging at the gate. . Regarding the sieving work by the sieving means, the end of the work can be known by the presence or absence of the sound of the non-passing material falling into the non-passing material storage chamber after the material to be sieved in the hopper is discharged.

In addition, as a monitor means, it is possible to place it in a visible position in the driving cabin. During the sieving work, the signal may be effectively used by switching to the signal from the photographing means for photographing the image of the hopper section.

Further, the sieving means of the present invention is preferably vibration sieving means capable of vibrating the sieve surface, and more preferably, the sieving means has a sieve mesh that gradually decreases from the upper stage to the lower stage. Those with two or more sieve surfaces are selected. As a result, the sieving work can be made more efficient, and a more advanced sieving work can be performed.

In this case, the passed matter storage chamber is a first passed matter storage chamber for storing the passed matter that has passed through the sieve mesh of the upper first sieve surface and has not passed the sieve mesh of the lower second sieve surface. , a second pass-through storage chamber for storing the pass-through that has passed through the sieve surface of the second sieve surface, and if a third sieve surface is provided as necessary, the pass-through For this purpose, a third passing object storage chamber may be provided. If possible, the number of storage chambers should be increased each time the number of sieve surfaces with smaller sieve meshes is increased.

Note that the non-passing object storage chamber and the passing object storage chamber are provided with discharge ports for discharging from the loading platform. In the embodiments described later, the discharge port includes a non-passing object discharge port for discharging the non-passing object storage chamber to the outside of the cargo bed, and a passing object discharge port for discharging the passing object storage chamber to the outside of the cargo bed. As storage chambers, a first transit object storage chamber and a second transit object storage chamber are provided. For this reason, it is possible to separately install a discharge port for each passing object storage chamber, and a part of the bottom surface of the first passing object storage chamber can be used as a partition door inside the second passing object storage chamber. By opening to the rear end side, the same passing object discharge port is discharged with a time lag.

Further, in the mobile sieving vehicle of the present invention, the sifted material is loaded on the hopper section, the loading platform is inclined, and the opening of the gate opening/closing section is adjusted, and the sieved material is moved through the vibrating sifting means. If a mechanism for independently discharging from the storage chamber corresponding to the sieving of the vibration sieving device is provided, the loading platform is dumped each time the sieved material is loaded into the hopper part. A continuous sieving operation can be performed by maintaining a dumped-up state without lifting.

That is, if the sieving means has only one sieve surface for sieving, and the sieving surface sieves two types of material to be sifted, non-passing matter and passing matter, the non-passing matter is the non-passing matter. The passing matter is discharged from the passing matter storage chamber through the passing matter discharging port through the non-passing matter outlet of the passing matter storage chamber. For this reason, while maintaining the dumped-up state of the loading platform, the opening of the gate is adjusted while the material to be sieved is thrown into the hopper by a belt conveyor or the like, and the sieving means sieves the passing material and the non-passing material. It is also possible to separate and continuously discharge the passed material and the non-passed material from each discharge port, and store them separately from the mobile sieving car by a belt conveyor or the like.

Further, as shown in an embodiment to be described later, when the sieving means has two sieving surfaces for sieving and has only one passing matter discharge port, different passing matter in the width direction of the passing matter discharge port is used. Continuous sieving operation can be performed by discharging. For example, a guide that guides the first passing material in one width direction in a state of being dumped up in the first passing material storage chamber in which the first passing material that has passed through the first sieve surface but not the second sieve surface is stored. A piece is erected, and a guide piece for guiding the second passaged matter to the other width is erected in the second passaged matter storage chamber in which the second passaged matter that has passed through the second sieve surface is stored in the same dumped-up state. As a result, it is possible to discharge the first passing object that has been brought to one side of the width and the second passing object that has been brought to the other width from the same passing object discharge port.

FIG. 1 is a left side view showing the configuration of one embodiment of the mobile sieving vehicle of the present invention. Fig. 2 is a left side view showing a dumped-up state of the loading platform of Fig. 1; FIG. 3 is a front view of a control panel provided with display means that can be checked in the driver's cabin. 4 is a front view of a control panel different from the control panel of FIG. 3. FIG.

As shown in FIGS. 1 and 2, the mobile sieving truck 10 of the present embodiment can be driven on public roads or the like by a driving source (not shown) such as an engine by driving operation at the driver's seat inside the driving cabin 11. A vehicle chassis 12 is provided with a loading platform 20 that can be tilted at a fulcrum 13 at the rear end of the vehicle chassis 12 by means of a hydraulic cylinder 14 as dump-up means. The mobile sieving vehicle 10 has one front tire 15 on each side and two rear tires 16 on each side of the vehicle chassis 12 on the rear side. A pair of left and right hydraulic jacks 17 are arranged on the rear end side of the rear tire 16 and substantially directly below the fulcrum 13 .

The loading platform 20 has a hopper portion 21 for holding an object to be sieved, which is arranged at a high position during dumping up, and a vibrating screen as a sifting means, which is located at a lower position than the hopper portion 21 during dumping up of the loading platform 20. A separate device 31 and three storage chambers 41, 42, and 43 for storing sifted objects to be sifted at lower positions of the vibration sifting device 31 when the loading platform 20 is dumped up are provided.

A hopper part 21 arranged at a high position when the loading platform 20 is dumped up is provided with a gate part 22 to a vibration screening device 31 at the lowest position when the loading platform 20 is dumped up. The gate portion 22 is equipped with an opening/closing device 23 that can be opened and closed by hydraulic drive upward from the bottom portion of the hopper portion 21 as gate opening/closing means.

In addition, when the hopper portion 21 is dumped up, the bottom portion inclined toward the gate portion 22 is driven back and forth toward the gate portion 22 and the vibration screening device 31 in order to prevent the material to be screened from remaining in the gate portion 22 . It is the linear feeder 24 which carries out. As a result, it is possible to prevent the formation of bridges or the like in which the material to be sifted is blocked toward the gate portion in an arch shape by pressure or the like, and the material to be sifted from the gate portion can be transferred smoothly.

The vibration sieving device 31 of this embodiment performs sieving while vibrating the first sieving surface 32 and the second sieving surface 33 . Since the mesh of the second mesh 33 is finer than the mesh of the first screen surface 32, the non-passing matter that does not pass through the mesh of the first screen surface 32 and the material that does not pass through the mesh of the first screen surface 32 In addition, the first passing matter that does not pass through the meshes of the second sieve surface 33 and the second passing matter that has passed through the meshes of the second sieve surface 33 are sieved.

As the three storage chambers 41, 42, and 43, an object to be sieved that does not pass through the meshes of the first sieve surface 32 of the sieve portion of the vibration sieving device 31 is placed above the loading platform 20 at the lower position of the vibration sieving device 31. A non-passing object storage chamber 41 is arranged in which non-passing objects are stored. A rear end wall surface of the loading platform 20 of the non-passing object storage chamber 41 is a sliding door 47 for non-passing objects. The non-passing object sliding door 47 can be opened and closed by the "rear gate top" switch on the operation panel in FIG.

In the lower stage of the non-passing matter storage chamber 41, the first passing matter that has passed through the meshes of the first sieve surface 32 of the vibration screening device 31 and has not passed through the meshes of the second sieve surface 33 in the lower stage is stored. A passing object storage chamber 42 is arranged. In the lower part of the first passage material storage chamber 42 , a second passage material is stored from the end of the bottom plate 34 of the vibration screening device 31 after passing through the meshes of the second sieve surface 33 of the vibration screening device 31 . An object storage room 43 is arranged.

The rear end wall surface of the loading platform 20 of the second passing object storage chamber 43 is a sliding door 48 for passing objects. The passage door 48 can also be opened and closed by the "rear gate lower part" switch of the operation panel in FIG. By opening the sliding door 48 for passing objects, the second passing objects in the second passing object storage chamber 43 are discharged to the outside of the loading platform 20 .

On the other hand, for the first passing object in the first passing object storage chamber 42 , a part of the bottom surface of the first passing object storage chamber 42 serves as a partition door 44 , which is located on the rear end side of the second passing object storage chamber 42 . can be opened to This partition door 44 can also be opened and closed by a "separation gate" switch on the operation panel shown in FIG. 4 which can be operated from the driver's seat. That is, after the second passing object in the second passing object storage chamber 43 is discharged to the outside of the loading platform 20, the first passing object is transferred to the first passing object storage chamber by opening the sliding door 48 for passing objects. 42 to the outside of the loading platform 20 via the second passage storage chamber 43 and the passage door 48 .

An angle sensor is arranged at the fulcrum of the loading platform 20, and measures the inclination angle of the loading platform 20 dumped up by the hydraulic cylinder 14 as dump-up means. The opening degree of the gate portion 22 is also measured by the opening/closing device 23 . The measured value is displayed like the display screen of the monitor section of the control panel in FIG. 3, which is displayed as an example of the display screen.

Horizontal sensors are arranged at the uppermost position of the loading platform 20 when it is jacked up and at the front and rear ends of the vehicle chassis to measure the front-rear tilt and left-right tilt of the loading platform 20 with respect to the traveling direction of the vehicle chassis 12 . The measured value is displayed like the display screen of the monitor section of the control panel in FIG. 3, which is also displayed as an example of the display screen.

A pair of left and right hydraulic jacks 17 at the rear end of the vehicle chassis 12 are switched on when the vehicle is dumped up, and are shifted from the retracted state of FIG. 1 to the extended state of FIG. In this overhanging state, the jack-up control means in the control mechanism for controlling the monitor operation panel controls the above-mentioned so as to keep the angle within a predetermined threshold according to the lateral angle of the loading platform 20 and the inclination of the vehicle chassis. It controls the extension pressure of the pair of left and right hydraulic jacks 17 .

Specifically, the extension pressures of the pair of left and right hydraulic jacks 17 are individually controlled so that the left and right tilts shown in FIG. 3 are maintained within the threshold of ±3°. Further, when the inclination in the front and rear direction is large, the threshold value is maintained by simultaneously controlling the extension pressures of the left and right hydraulic jacks 17 .

Further, each of the fulcrum 13 supporting the loading platform 20 and the hydraulic cylinder 14 for dumping up is provided with a weight sensor. Weight can be measured. The measured total weight is displayed on the display screen of the monitor section of the control panel in FIG. 3, which is also displayed as an example of the display screen.

The loading weight of the material to be screened is determined by loading the material to be screened on the hopper portion 21 of the loading platform 20 from the side of the mobile screening vehicle using a power shovel or the like. Loaded weight display means is provided as an indicator of how much the hopper portion 21 should be loaded by the operator of the heavy machine such as the power shovel. That is, signal towers 18 as load weight display means are provided on the upper surface of the ceiling of the driving cabin 11 so as to face each other on the left and right sides.

The signal tower 18 has a green lamp, a yellow lamp, and a red lamp that are lit or blinked from below like a traffic light. In this embodiment, one of the lamps blinks or lights up according to the load weight. Specifically, when the loading weight is 0 to 1t, the 3 lamps do not light up, when the loading weight is 1 to 2t, the lower green lamp blinks, and when the loading weight is 2 to 3t, the lower green lamp. lights up, the yellow lamp of suspension blinks at 3-4t, the yellow lamp of suspension lights up at 4-5t, the red lamp at the top blinks at 5-6t, and the red lamp lights up when it exceeds 6t It is designed to light up.

The operator of the heavy equipment carrying out the loading work sees the color and lighting status of these lamps, and by preventing them from lighting up in red, it is possible to carry out the loading without exceeding the maximum loading capacity of 6.5 tons. . In addition, since they are arranged on the left and right sides of the upper surface of the ceiling part, it is possible to recognize the loading operation from both sides of the mobile loading vehicle 10. - 特許庁

A monitoring camera 25 as a photographing means for photographing the inside of the hopper portion 21 and the gate portion 22 on the opposite surface is installed at the center portion of the upper edge portion of the loading platform 20 on the side of the operating cabin 11 . Thereby, the image of the monitoring camera 25 can be visually recognized from the driver's seat in the driving cabin 11 . As a monitor means for visual recognition, an existing drive navigation system monitor (not shown) is used in the driver's seat.

With this surveillance camera 25, the image inside the hopper section 21 can be viewed from within the operating cabin 11, which not only improves work efficiency but also makes it possible to cope with unexpected situations such as clogging at the gate section. Become. In this embodiment, the monitor used in the drive navigation system is used, but the monitor used in the existing back monitor, drive recorder, etc. may also be used. The input signal to the monitor may be switched to the signal from the surveillance camera 25 during the sieving operation.

10... Mobile sieving car,
11 ... driving cabin,
12... vehicle chassis,
13 ... fulcrum,
14 ... hydraulic cylinder,
15 ... front wheel tire,
16... Rear tire,
17 ... hydraulic jack,
18 ... signal tower (loading weight display means),
20 ... loading platform,
21 ... Hopper part,
22... Gate part,
23 ... switchgear,
24 ... linear feeder,
25... Surveillance camera (imaging means),
31... vibrating sieving device,
32... First sieve mesh,
33 ... second sieve mesh,
34 ... Bottom plate,
41 ... non-passing object storage room,
42 … 1st pass storage room,
43 … second passing object storage room,
44 ... partition door,
45 ... Non-passing object discharge port,
46 ... passage discharge port,
47 ... Sliding door for non-passing objects,
48 ... Sliding door for passing objects,

Claims (5)

a hopper portion for holding material to be sieved disposed at a high position on the vehicle chassis when a tiltable bed is raised;
sieving means arranged at a lower position of the hopper portion when the loading platform is raised;
a non-passing matter storage chamber disposed below the sieving means when the loading platform is raised, and storing non-passing matter of the sieved matter that does not pass through the sieve meshes of the sieve portion of the sieving means;
a passing matter storage chamber arranged below the sieving means when the loading platform rises, and storing the passing matter that has passed through the sieve meshes of the sieve unit;
Dump-up means for raising and tilting the loading platform;
a gate opening/closing means for performing an opening degree operation of a gate portion that limits the amount of movement from the hopper portion to the sifting means;
tilt measuring means for measuring the front-rear tilt and the left-right tilt with respect to the traveling direction of the vehicle chassis;
a pair of left and right jack-up means arranged on both rear end sides of left and right rear wheels supporting the vehicle chassis near the fulcrum portion of the cargo bed, and adjusting the front-rear and left-right tilts of the cargo bed and the vehicle chassis when the vehicle is raised; prepared,
In the driving cabin, the rising inclination angle of the cargo bed by the dump-up means, the opening degree of the gate portion, and the longitudinal and lateral inclinations of the cargo bed with respect to the traveling direction of the vehicle chassis are visible in the driving cabin . Display means for displaying as a display screen of the monitor section of the operation panel in the
jack-up control means for controlling the pair of left and right jack-up means so as to adjust the inclination of the loading platform and the vehicle chassis at the time of rising within a predetermined threshold value ;
The jack-up control means is characterized in that the extension of the pair of left and right jack-up means is individually controlled by the operation panel with respect to the left and right inclinations, and simultaneously controlled with respect to the front and rear inclinations. mobile sieving car. Loading amount measuring means for measuring the loading amount of the material to be sieved put into the hopper section and onto the loading platform;
2. The mobile sifting vehicle according to claim 1, further comprising load weight display means for recognizing the load amount measured by said load amount measuring means from outside the vehicle. a photographing means for photographing an image of the hopper mounted on the loading platform;
3. The mobile sieving vehicle according to claim 1, further comprising monitor means for visually recognizing the image of said photographing means within said driving cabin. The mobile screening vehicle according to any one of claims 1 to 3, wherein the screening means is vibratory screening means capable of vibrating the screen surface. The sieving means comprises a first sieve surface and a second sieve surface in which the sieve mesh gradually decreases from the upper stage to the lower stage,
The passing matter storage chamber includes a first passing matter storage chamber in which a first passing matter that passes through the first sieve surface but does not pass through the second sieve surface is stored, and a lower stage of the first passing matter storage chamber. a second passing material storage chamber in which the second passing material that has passed through the second sieve surface is stored;
A sliding door for non-passing objects that opens and closes a non-passing object discharge port on the rear end wall of the cargo bed of the non-passing object storage chamber, and a passage object that opens and closes a passing object discharge port on the rear end wall of the cargo bed of the second passable object storage chamber. and a partition door that opens and closes a part of the bottom surface of the first passable object storage chamber to the rear end side of the second passable object storage chamber,
An operation panel that can be operated from the driver's seat in the driving cabin is further provided, and the operation panel is provided with switches that can open and close the non-passing object swing door, the passing object swing door, and the partition door, respectively. The mobile sieving vehicle according to any one of claims 1 to 4, characterized in that there is a

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